Substitute openssl asn1 parsing with custom decoder

This commit is contained in:
Pavel Tikhonenko
2019-06-24 01:37:55 +03:00
parent d579244046
commit 630fdb6cbf
100 changed files with 21290 additions and 124 deletions
+13
View File
@@ -0,0 +1,13 @@
ReceiptModule DEFINITIONS ::=
BEGIN
ReceiptAttribute ::= SEQUENCE {
type INTEGER,
version INTEGER,
value OCTET STRING
}
Payload ::= SET OF ReceiptAttribute
END
+38
View File
@@ -0,0 +1,38 @@
//
// main.swift
// Example
//
// Created by Pavel Tikhonenko on 23/06/2019.
// Copyright © 2019 Pavel Tikhonenko. All rights reserved.
//
import Foundation
import TPInAppReceipt
print("Hello, World!")
func testNoOpenssl()
{
//self.measure
//{
let mock = try! PKCS7WrapperMock()
mock.extractASN1Data().enumerateASN1AttributesNoOpenssl(withBlock: { (item) in
})
//}
}
func test()
{
// self.measure
// {
let mock = try! PKCS7WrapperMock()
mock.extractASN1Data().enumerateASN1Attributes(withBlock: { (item) in
})
// }
}
testNoOpenssl()
+210 -16
View File
@@ -91,6 +91,7 @@
47209AC31D9E111C0010BCDE /* InAppReceiptManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47209ABF1D9E111C0010BCDE /* InAppReceiptManager.swift */; };
47209AC51D9E112C0010BCDE /* AppleIncRootCertificate.cer in Resources */ = {isa = PBXBuildFile; fileRef = 47209AC41D9E112C0010BCDE /* AppleIncRootCertificate.cer */; };
47209AC61D9E112C0010BCDE /* AppleIncRootCertificate.cer in Resources */ = {isa = PBXBuildFile; fileRef = 47209AC41D9E112C0010BCDE /* AppleIncRootCertificate.cer */; };
4728B65922BE3DB900607E5E /* Asn1Coder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4728B65822BE3DB900607E5E /* Asn1Coder.swift */; };
47589AE51E319A220047DFCD /* Validation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47589AE41E319A220047DFCD /* Validation.swift */; };
47589AE71E31AE6F0047DFCD /* PKCS7Wrapper.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47589AE61E31AE6F0047DFCD /* PKCS7Wrapper.swift */; };
47589AE91E31B2F90047DFCD /* InAppPurchase.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47589AE81E31B2F90047DFCD /* InAppPurchase.swift */; };
@@ -100,7 +101,6 @@
47589AF41E333F450047DFCD /* IARError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47589AEE1E332D5D0047DFCD /* IARError.swift */; };
47589AF51E333F450047DFCD /* Date+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 479DC54C1DA0B8BB00D9A5E3 /* Date+Extension.swift */; };
47589AF61E333F450047DFCD /* InAppPurchase.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47589AE81E31B2F90047DFCD /* InAppPurchase.swift */; };
47589AF81E333F450047DFCD /* ASN1Helper.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47209ABC1D9E111C0010BCDE /* ASN1Helper.swift */; };
47589AF91E333F450047DFCD /* Data+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47209ABD1D9E111C0010BCDE /* Data+Extension.swift */; };
47589AFA1E333F450047DFCD /* InAppReceipt.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47209ABE1D9E111C0010BCDE /* InAppReceipt.swift */; };
47589AFB1E333F450047DFCD /* Validation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47589AE41E319A220047DFCD /* Validation.swift */; };
@@ -185,9 +185,22 @@
47589B4F1E333F450047DFCD /* AppleIncRootCertificate.cer in Resources */ = {isa = PBXBuildFile; fileRef = 47209AC41D9E112C0010BCDE /* AppleIncRootCertificate.cer */; };
47589B561E3342490047DFCD /* DeviceGUIDRetriever.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47589B551E3342490047DFCD /* DeviceGUIDRetriever.swift */; };
47589B571E3342490047DFCD /* DeviceGUIDRetriever.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47589B551E3342490047DFCD /* DeviceGUIDRetriever.swift */; };
476C64BE22BE6DC100D973F9 /* PCKS7.swift in Sources */ = {isa = PBXBuildFile; fileRef = 476C64BD22BE6DC100D973F9 /* PCKS7.swift */; };
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476C64CA22BFC93E00D973F9 /* PCKS7.swift in Sources */ = {isa = PBXBuildFile; fileRef = 476C64BD22BE6DC100D973F9 /* PCKS7.swift */; };
476C64CB22BFC94400D973F9 /* Asn1Coder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4728B65822BE3DB900607E5E /* Asn1Coder.swift */; };
476C64CC22BFC94400D973F9 /* ASN1Helper.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47209ABC1D9E111C0010BCDE /* ASN1Helper.swift */; };
476C64CD22BFC9AA00D973F9 /* TPInAppReceipt.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 47589B531E333F450047DFCD /* TPInAppReceipt.framework */; };
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476C64D022BFCCD500D973F9 /* libssl.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 47D2132F1E4588CF00994B00 /* libssl.a */; };
476C64D122BFCCDE00D973F9 /* libcrypto.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 47D2132E1E4588CF00994B00 /* libcrypto.a */; };
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476C64D422C028D300D973F9 /* ASN1Object.swift in Sources */ = {isa = PBXBuildFile; fileRef = 476C64D322C028D300D973F9 /* ASN1Object.swift */; };
476C64D622C028F800D973F9 /* ASN1Object+Helper.swift in Sources */ = {isa = PBXBuildFile; fileRef = 476C64D522C028F800D973F9 /* ASN1Object+Helper.swift */; };
476C64D822C0298000D973F9 /* ASN1Object+ValueReading.swift in Sources */ = {isa = PBXBuildFile; fileRef = 476C64D722C0298000D973F9 /* ASN1Object+ValueReading.swift */; };
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47D213301E4588CF00994B00 /* libcrypto.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 47D2132E1E4588CF00994B00 /* libcrypto.a */; };
47D213311E4588CF00994B00 /* libssl.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 47D2132F1E4588CF00994B00 /* libssl.a */; };
47D213341E4588D800994B00 /* libcrypto.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 47D213321E4588D800994B00 /* libcrypto.a */; };
47D213351E4588D800994B00 /* libssl.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 47D213331E4588D800994B00 /* libssl.a */; };
47D2133A1E4738AB00994B00 /* Initialization.swift in Sources */ = {isa = PBXBuildFile; fileRef = 47D213391E4738AB00994B00 /* Initialization.swift */; };
@@ -205,6 +218,18 @@
};
/* End PBXContainerItemProxy section */
/* Begin PBXCopyFilesBuildPhase section */
476C64C122BFC76000D973F9 /* CopyFiles */ = {
isa = PBXCopyFilesBuildPhase;
buildActionMask = 2147483647;
dstPath = /usr/share/man/man1/;
dstSubfolderSpec = 0;
files = (
);
runOnlyForDeploymentPostprocessing = 1;
};
/* End PBXCopyFilesBuildPhase section */
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10738491DC109D48ABBBDEAE /* InAppReceiptTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = InAppReceiptTests.swift; sourceTree = "<group>"; };
470D079C203B4FC700F3335F /* Security.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Security.framework; path = System/Library/Frameworks/Security.framework; sourceTree = SDKROOT; };
@@ -295,6 +320,7 @@
47209ABF1D9E111C0010BCDE /* InAppReceiptManager.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = InAppReceiptManager.swift; sourceTree = "<group>"; };
47209AC41D9E112C0010BCDE /* AppleIncRootCertificate.cer */ = {isa = PBXFileReference; lastKnownFileType = file; path = AppleIncRootCertificate.cer; sourceTree = "<group>"; };
47209ACD1D9E92CC0010BCDE /* TPInAppReceipt.podspec */ = {isa = PBXFileReference; lastKnownFileType = text; path = TPInAppReceipt.podspec; sourceTree = "<group>"; };
4728B65822BE3DB900607E5E /* Asn1Coder.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Asn1Coder.swift; sourceTree = "<group>"; };
47589AE41E319A220047DFCD /* Validation.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Validation.swift; sourceTree = "<group>"; };
47589AE61E31AE6F0047DFCD /* PKCS7Wrapper.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PKCS7Wrapper.swift; sourceTree = "<group>"; };
47589AE81E31B2F90047DFCD /* InAppPurchase.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = InAppPurchase.swift; sourceTree = "<group>"; };
@@ -302,6 +328,13 @@
47589AEE1E332D5D0047DFCD /* IARError.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = IARError.swift; sourceTree = "<group>"; };
47589B531E333F450047DFCD /* TPInAppReceipt.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = TPInAppReceipt.framework; sourceTree = BUILT_PRODUCTS_DIR; };
47589B551E3342490047DFCD /* DeviceGUIDRetriever.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DeviceGUIDRetriever.swift; sourceTree = "<group>"; };
476C64BD22BE6DC100D973F9 /* PCKS7.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PCKS7.swift; sourceTree = "<group>"; };
476C64C322BFC76000D973F9 /* Example */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = Example; sourceTree = BUILT_PRODUCTS_DIR; };
476C64C522BFC76000D973F9 /* main.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = main.swift; sourceTree = "<group>"; };
476C64D322C028D300D973F9 /* ASN1Object.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ASN1Object.swift; sourceTree = "<group>"; };
476C64D522C028F800D973F9 /* ASN1Object+Helper.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "ASN1Object+Helper.swift"; sourceTree = "<group>"; };
476C64D722C0298000D973F9 /* ASN1Object+ValueReading.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "ASN1Object+ValueReading.swift"; sourceTree = "<group>"; };
476C64D922C0330500D973F9 /* ASN1Object+Sequence.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "ASN1Object+Sequence.swift"; sourceTree = "<group>"; };
479DC54C1DA0B8BB00D9A5E3 /* Date+Extension.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "Date+Extension.swift"; sourceTree = "<group>"; };
47D2132E1E4588CF00994B00 /* libcrypto.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = libcrypto.a; path = Vendor/OpenSSL/Mac/libcrypto.a; sourceTree = SOURCE_ROOT; };
47D2132F1E4588CF00994B00 /* libssl.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = libssl.a; path = Vendor/OpenSSL/Mac/libssl.a; sourceTree = SOURCE_ROOT; };
@@ -333,8 +366,19 @@
isa = PBXFrameworksBuildPhase;
buildActionMask = 2147483647;
files = (
47D213311E4588CF00994B00 /* libssl.a in Frameworks */,
47D213301E4588CF00994B00 /* libcrypto.a in Frameworks */,
476C64CE22BFCCB400D973F9 /* Security.framework in Frameworks */,
476C64CF22BFCCD500D973F9 /* libcrypto.a in Frameworks */,
476C64D022BFCCD500D973F9 /* libssl.a in Frameworks */,
);
runOnlyForDeploymentPostprocessing = 0;
};
476C64C022BFC76000D973F9 /* Frameworks */ = {
isa = PBXFrameworksBuildPhase;
buildActionMask = 2147483647;
files = (
476C64CD22BFC9AA00D973F9 /* TPInAppReceipt.framework in Frameworks */,
476C64D122BFCCDE00D973F9 /* libcrypto.a in Frameworks */,
476C64D222BFCCDE00D973F9 /* libssl.a in Frameworks */,
);
runOnlyForDeploymentPostprocessing = 0;
};
@@ -355,6 +399,7 @@
47209ACD1D9E92CC0010BCDE /* TPInAppReceipt.podspec */,
47209A031D9E0FD60010BCDE /* TPInAppReceipt */,
47209A0E1D9E0FD60010BCDE /* TPInAppReceiptTests */,
476C64C422BFC76000D973F9 /* Example */,
47209A021D9E0FD60010BCDE /* Products */,
470D079B203B4FC600F3335F /* Frameworks */,
);
@@ -366,6 +411,7 @@
47209A011D9E0FD60010BCDE /* TPInAppReceipt.framework */,
47209A0A1D9E0FD60010BCDE /* TPInAppReceiptTests.xctest */,
47589B531E333F450047DFCD /* TPInAppReceipt.framework */,
476C64C322BFC76000D973F9 /* Example */,
);
name = Products;
sourceTree = "<group>";
@@ -503,13 +549,14 @@
47209ABB1D9E111C0010BCDE /* Source */ = {
isa = PBXGroup;
children = (
476C64BC22BE6DB300D973F9 /* pcks7 */,
4728B65722BE3CF800607E5E /* asn1 */,
47209ABF1D9E111C0010BCDE /* InAppReceiptManager.swift */,
47D213391E4738AB00994B00 /* Initialization.swift */,
47589AE41E319A220047DFCD /* Validation.swift */,
47209ABE1D9E111C0010BCDE /* InAppReceipt.swift */,
47589AEA1E32D6BB0047DFCD /* InAppReceiptPayload.swift */,
47589AE81E31B2F90047DFCD /* InAppPurchase.swift */,
47209ABC1D9E111C0010BCDE /* ASN1Helper.swift */,
47589AE61E31AE6F0047DFCD /* PKCS7Wrapper.swift */,
47589AEE1E332D5D0047DFCD /* IARError.swift */,
47589B551E3342490047DFCD /* DeviceGUIDRetriever.swift */,
@@ -519,6 +566,19 @@
path = Source;
sourceTree = "<group>";
};
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isa = PBXGroup;
children = (
4728B65822BE3DB900607E5E /* Asn1Coder.swift */,
47209ABC1D9E111C0010BCDE /* ASN1Helper.swift */,
476C64D322C028D300D973F9 /* ASN1Object.swift */,
476C64D522C028F800D973F9 /* ASN1Object+Helper.swift */,
476C64D722C0298000D973F9 /* ASN1Object+ValueReading.swift */,
476C64D922C0330500D973F9 /* ASN1Object+Sequence.swift */,
);
name = asn1;
sourceTree = "<group>";
};
47589B581E33590F0047DFCD /* iOS */ = {
isa = PBXGroup;
children = (
@@ -537,6 +597,22 @@
path = Mac;
sourceTree = "<group>";
};
476C64BC22BE6DB300D973F9 /* pcks7 */ = {
isa = PBXGroup;
children = (
476C64BD22BE6DC100D973F9 /* PCKS7.swift */,
);
name = pcks7;
sourceTree = "<group>";
};
476C64C422BFC76000D973F9 /* Example */ = {
isa = PBXGroup;
children = (
476C64C522BFC76000D973F9 /* main.swift */,
);
path = Example;
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/* Begin PBXHeadersBuildPhase section */
@@ -763,13 +839,30 @@
productReference = 47589B531E333F450047DFCD /* TPInAppReceipt.framework */;
productType = "com.apple.product-type.framework";
};
476C64C222BFC76000D973F9 /* Example */ = {
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476C64C122BFC76000D973F9 /* CopyFiles */,
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buildRules = (
);
dependencies = (
);
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productName = Example;
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isa = PBXProject;
attributes = {
LastSwiftUpdateCheck = 0800;
LastSwiftUpdateCheck = 1020;
LastUpgradeCheck = 1020;
ORGANIZATIONNAME = "Pavel Tikhonenko";
TargetAttributes = {
@@ -783,6 +876,14 @@
LastSwiftMigration = 1020;
ProvisioningStyle = Automatic;
};
47589AF11E333F450047DFCD = {
LastSwiftMigration = 1020;
};
476C64C222BFC76000D973F9 = {
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buildConfigurationList = 472099FB1D9E0FD60010BCDE /* Build configuration list for PBXProject "TPInAppReceipt" */;
@@ -801,6 +902,7 @@
47209A001D9E0FD60010BCDE /* TPInAppReceipt iOS */,
47589AF11E333F450047DFCD /* TPInAppReceipt macOS */,
47209A091D9E0FD60010BCDE /* TPInAppReceiptTests */,
476C64C222BFC76000D973F9 /* Example */,
);
};
/* End PBXProject section */
@@ -839,9 +941,14 @@
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47589AEB1E32D6BB0047DFCD /* InAppReceiptPayload.swift in Sources */,
47589AEF1E332D5E0047DFCD /* IARError.swift in Sources */,
476C64D822C0298000D973F9 /* ASN1Object+ValueReading.swift in Sources */,
476C64BE22BE6DC100D973F9 /* PCKS7.swift in Sources */,
476C64D422C028D300D973F9 /* ASN1Object.swift in Sources */,
479DC54D1DA0B8BB00D9A5E3 /* Date+Extension.swift in Sources */,
47D2133A1E4738AB00994B00 /* Initialization.swift in Sources */,
47589AE91E31B2F90047DFCD /* InAppPurchase.swift in Sources */,
476C64DA22C0330500D973F9 /* ASN1Object+Sequence.swift in Sources */,
476C64D622C028F800D973F9 /* ASN1Object+Helper.swift in Sources */,
47209AC01D9E111C0010BCDE /* ASN1Helper.swift in Sources */,
47209AC11D9E111C0010BCDE /* Data+Extension.swift in Sources */,
47209AC21D9E111C0010BCDE /* InAppReceipt.swift in Sources */,
@@ -849,6 +956,7 @@
47589B561E3342490047DFCD /* DeviceGUIDRetriever.swift in Sources */,
47209AC31D9E111C0010BCDE /* InAppReceiptManager.swift in Sources */,
47589AE71E31AE6F0047DFCD /* PKCS7Wrapper.swift in Sources */,
4728B65922BE3DB900607E5E /* Asn1Coder.swift in Sources */,
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@@ -864,18 +972,28 @@
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476C64CA22BFC93E00D973F9 /* PCKS7.swift in Sources */,
47589AF51E333F450047DFCD /* Date+Extension.swift in Sources */,
47D2133B1E4738AB00994B00 /* Initialization.swift in Sources */,
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47589AFA1E333F450047DFCD /* InAppReceipt.swift in Sources */,
47589AFB1E333F450047DFCD /* Validation.swift in Sources */,
47589AFC1E333F450047DFCD /* InAppReceiptManager.swift in Sources */,
47589AFD1E333F450047DFCD /* PKCS7Wrapper.swift in Sources */,
476C64CB22BFC94400D973F9 /* Asn1Coder.swift in Sources */,
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@@ -1012,12 +1130,16 @@
47209A161D9E0FD60010BCDE /* Debug */ = {
isa = XCBuildConfiguration;
buildSettings = {
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DEFINES_MODULE = YES;
DYLIB_COMPATIBILITY_VERSION = 1;
DYLIB_CURRENT_VERSION = 1;
DYLIB_INSTALL_NAME_BASE = "@rpath";
HEADER_SEARCH_PATHS = "$(SRCROOT)/Vendor/OpenSSL/include";
HEADER_SEARCH_PATHS = (
"$(SRCROOT)/Vendor/OpenSSL/include",
"$(SRCROOT)/Vendor/ssh1/include",
);
INFOPLIST_FILE = TPInAppReceipt/Info.plist;
INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
@@ -1028,7 +1150,8 @@
PRODUCT_BUNDLE_IDENTIFIER = com.tikhop.TPInAppReceipt;
PRODUCT_NAME = TPInAppReceipt;
SKIP_INSTALL = YES;
SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Vendor/OpenSSL";
SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Vendor/OpenSSL $(SRCROOT)/Vendor/ssh1";
SWIFT_OPTIMIZATION_LEVEL = "-Onone";
SWIFT_VERSION = 5.0;
};
name = Debug;
@@ -1036,12 +1159,16 @@
47209A171D9E0FD60010BCDE /* Release */ = {
isa = XCBuildConfiguration;
buildSettings = {
CLANG_ENABLE_MODULES = YES;
CODE_SIGN_IDENTITY = "";
DEFINES_MODULE = YES;
DYLIB_COMPATIBILITY_VERSION = 1;
DYLIB_CURRENT_VERSION = 1;
DYLIB_INSTALL_NAME_BASE = "@rpath";
HEADER_SEARCH_PATHS = "$(SRCROOT)/Vendor/OpenSSL/include";
HEADER_SEARCH_PATHS = (
"$(SRCROOT)/Vendor/OpenSSL/include",
"$(SRCROOT)/Vendor/ssh1/include",
);
INFOPLIST_FILE = TPInAppReceipt/Info.plist;
INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
@@ -1052,7 +1179,7 @@
PRODUCT_BUNDLE_IDENTIFIER = com.tikhop.TPInAppReceipt;
PRODUCT_NAME = TPInAppReceipt;
SKIP_INSTALL = YES;
SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Vendor/OpenSSL";
SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Vendor/OpenSSL $(SRCROOT)/Vendor/ssh1";
SWIFT_VERSION = 5.0;
};
name = Release;
@@ -1084,12 +1211,16 @@
47589B511E333F450047DFCD /* Debug */ = {
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DYLIB_CURRENT_VERSION = 1;
DYLIB_INSTALL_NAME_BASE = "@rpath";
HEADER_SEARCH_PATHS = "$(SRCROOT)/Vendor/OpenSSL/include";
HEADER_SEARCH_PATHS = (
"$(SRCROOT)/Vendor/OpenSSL/include",
"$(SRCROOT)/Vendor/ssh1",
);
INFOPLIST_FILE = "$(SRCROOT)/TPInAppReceipt/Info.plist";
INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
@@ -1097,12 +1228,14 @@
"$(inherited)",
"$(PROJECT_DIR)/Vendor/OpenSSL/Mac",
);
MACH_O_TYPE = mh_dylib;
MACOSX_DEPLOYMENT_TARGET = 10.11;
PRODUCT_BUNDLE_IDENTIFIER = com.tikhop.TPInAppReceipt;
PRODUCT_NAME = TPInAppReceipt;
SDKROOT = macosx;
SKIP_INSTALL = YES;
SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Vendor/OpenSSL";
SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Vendor/OpenSSL $(SRCROOT)/Vendor/ssh1";
SWIFT_OPTIMIZATION_LEVEL = "-Onone";
SWIFT_VERSION = 5.0;
};
name = Debug;
@@ -1110,12 +1243,16 @@
47589B521E333F450047DFCD /* Release */ = {
isa = XCBuildConfiguration;
buildSettings = {
CLANG_ENABLE_MODULES = YES;
CODE_SIGN_IDENTITY = "";
DEFINES_MODULE = YES;
DYLIB_COMPATIBILITY_VERSION = 1;
DYLIB_CURRENT_VERSION = 1;
DYLIB_INSTALL_NAME_BASE = "@rpath";
HEADER_SEARCH_PATHS = "$(SRCROOT)/Vendor/OpenSSL/include";
HEADER_SEARCH_PATHS = (
"$(SRCROOT)/Vendor/OpenSSL/include",
"$(SRCROOT)/Vendor/ssh1",
);
INFOPLIST_FILE = "$(SRCROOT)/TPInAppReceipt/Info.plist";
INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
@@ -1123,12 +1260,60 @@
"$(inherited)",
"$(PROJECT_DIR)/Vendor/OpenSSL/Mac",
);
MACH_O_TYPE = mh_dylib;
MACOSX_DEPLOYMENT_TARGET = 10.11;
PRODUCT_BUNDLE_IDENTIFIER = com.tikhop.TPInAppReceipt;
PRODUCT_NAME = TPInAppReceipt;
SDKROOT = macosx;
SKIP_INSTALL = YES;
SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Vendor/OpenSSL";
SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Vendor/OpenSSL $(SRCROOT)/Vendor/ssh1";
SWIFT_VERSION = 5.0;
};
name = Release;
};
476C64C822BFC76000D973F9 /* Debug */ = {
isa = XCBuildConfiguration;
buildSettings = {
CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
CLANG_ENABLE_OBJC_WEAK = YES;
CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
CODE_SIGN_IDENTITY = "Mac Developer";
CODE_SIGN_STYLE = Automatic;
DEVELOPMENT_TEAM = Y357EKMWLB;
GCC_C_LANGUAGE_STANDARD = gnu11;
LIBRARY_SEARCH_PATHS = (
"$(inherited)",
"$(PROJECT_DIR)/Vendor/OpenSSL/Mac",
);
MACOSX_DEPLOYMENT_TARGET = 10.14;
MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
MTL_FAST_MATH = YES;
PRODUCT_NAME = "$(TARGET_NAME)";
SDKROOT = macosx;
SWIFT_VERSION = 5.0;
};
name = Debug;
};
476C64C922BFC76000D973F9 /* Release */ = {
isa = XCBuildConfiguration;
buildSettings = {
CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
CLANG_ENABLE_OBJC_WEAK = YES;
CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
CODE_SIGN_IDENTITY = "Mac Developer";
CODE_SIGN_STYLE = Automatic;
DEVELOPMENT_TEAM = Y357EKMWLB;
GCC_C_LANGUAGE_STANDARD = gnu11;
LIBRARY_SEARCH_PATHS = (
"$(inherited)",
"$(PROJECT_DIR)/Vendor/OpenSSL/Mac",
);
MACOSX_DEPLOYMENT_TARGET = 10.14;
MTL_FAST_MATH = YES;
PRODUCT_NAME = "$(TARGET_NAME)";
SDKROOT = macosx;
SWIFT_VERSION = 5.0;
};
name = Release;
@@ -1172,6 +1357,15 @@
defaultConfigurationIsVisible = 0;
defaultConfigurationName = Release;
};
476C64C722BFC76000D973F9 /* Build configuration list for PBXNativeTarget "Example" */ = {
isa = XCConfigurationList;
buildConfigurations = (
476C64C822BFC76000D973F9 /* Debug */,
476C64C922BFC76000D973F9 /* Release */,
);
defaultConfigurationIsVisible = 0;
defaultConfigurationName = Release;
};
/* End XCConfigurationList section */
};
rootObject = 472099F81D9E0FD60010BCDE /* Project object */;
+8
View File
@@ -9,6 +9,14 @@
import Foundation
import openssl
public struct InAppReceiptAttribute
{
var type: Int!
var version: Int!
var value: ASN1Object!
}
func asn1ConsumeObject(_ ptr: UnsafeMutablePointer<UnsafePointer<UInt8>?>, _ l: Int)
{
var pClass: Int32 = 0
@@ -0,0 +1,92 @@
//
// ASN1Object+Helper.swift
// TPInAppReceipt iOS
//
// Created by Pavel Tikhonenko on 24/06/2019.
// Copyright © 2019 Pavel Tikhonenko. All rights reserved.
//
import Foundation
///
/// Utils methods
extension ASN1Object
{
static func initializeASN1Object(from data: Data) throws -> ASN1Object
{
guard isDataValid(data) else
{
throw ASN1Error.initializationFailed(reason: .dataIsInvalid)
}
return ASN1Object(data: data)
}
static func isDataValid(_ data: Data) -> Bool
{
let c = data.count
if c == 0 { return false }
guard let identifier = try? Identifier(data: data) else
{
return false
}
var bytesCount = 1
let length = ASN1Object.extractLenght(from: data.pointer.advanced(by: 1))
bytesCount += (length.offset + length.value)
if c != bytesCount
{
return false
}
return true
}
static func isPointerValid(_ pointer: UnsafePointer<UInt8>) -> Bool
{
return true
}
static func extractLenght(from data: Data) -> Length
{
guard let firstByte = data.first else
{
return Length.short(value: 0)
}
if ((firstByte & 0x80) != 0)
{
let l: Int = Int(firstByte - 0x80)
let lData = data.dropLast(data.count - 1 - l).advanced(by: 1)
let lResult = UnsafeMutableBufferPointer<Int>.allocate(capacity: 1)
lData.copyBytes(to: lResult)
let r = lResult.first!
lResult.deallocate()
return Length.long(length: l, value: r)
}else{
return Length.short(value: Int(firstByte))
}
}
static func extractLenght(from pointer: UnsafePointer<UInt8>) -> Length
{
let firstByte = pointer[0]
if ((firstByte & 0x80) != 0)
{
let l: Int = Int(firstByte - 0x80)
let nextOctet = pointer.advanced(by: 1)
return Length.long(length: l, value: readInt(from: nextOctet, l: l))
}else{
return Length.short(value: Int(firstByte))
}
}
}
@@ -0,0 +1,59 @@
//
// ASN1Object+Sequence.swift
// TPInAppReceipt iOS
//
// Created by Pavel Tikhonenko on 24/06/2019.
// Copyright © 2019 Pavel Tikhonenko. All rights reserved.
//
import Foundation
struct ASN1Iterator: IteratorProtocol
{
typealias Element = ASN1Object
let asn1: ASN1Object
var lastItem: ASN1Object
var bytesLeft: Int = 0
init(_ asn1: ASN1Object)
{
self.asn1 = asn1
self.lastItem = asn1
self.bytesLeft = asn1.length.value
}
mutating func next() -> Element?
{
guard asn1.identifier.encodingType == .constructed, bytesLeft > 0 else
{
return nil
}
var contents: UnsafePointer<UInt8> = lastItem.pointer
contents = contents.advanced(by: 1) //Identifier
contents = contents.advanced(by: lastItem.length.offset)
if bytesLeft != asn1.length.value
{
contents = contents.advanced(by: lastItem.length.value)
}
let asn1 = ASN1Object(bytes: contents)
lastItem = asn1
bytesLeft -= asn1.bytesCount
return asn1
}
}
extension ASN1Object: Sequence
{
func makeIterator() -> ASN1Iterator
{
return ASN1Iterator(self)
}
typealias Element = ASN1Object
}
@@ -0,0 +1,159 @@
//
// ASN1Object+ValueReading.swift
// TPInAppReceipt iOS
//
// Created by Pavel Tikhonenko on 24/06/2019.
// Copyright © 2019 Pavel Tikhonenko. All rights reserved.
//
import Foundation
extension ASN1Object
{
static func readString(from contents: UnsafePointer<UInt8>, _ l: Int, encoding: String.Encoding) -> String
{
let data = Data(bytes: contents, count: l)
return String(data: data, encoding: encoding) ?? ""
}
static func readInt(from contents: UnsafePointer<UInt8>, l: Int) -> Int
{
var r: UInt64 = 0
for i in 0..<l
{
r |= UInt64(contents[i])
if i < (l - 1)
{
r = r << 8
}
}
if r >= Int.max
{
return -1
}
return Int(r)
}
static func asn1ReadUTF8String(_ ptr: UnsafePointer<UInt8>, _ l: Int) -> String?
{
return readString(from: ptr, l, encoding: .utf8)
}
static func asn1ReadASCIIString(_ ptr: UnsafePointer<UInt8>, _ l: Int) -> String?
{
return readString(from: ptr, l, encoding: .ascii)
}
func extractValue() -> Any?
{
return value()
}
fileprivate func contentsBytes() -> UnsafePointer<UInt8>
{
var contents: UnsafePointer<UInt8> = pointer
contents = contents.advanced(by: 1) //Identifier
contents = contents.advanced(by: length.offset) //Identifier
return contents
}
fileprivate func value() -> ASN1ExtractableValueTypes?
{
let type = identifier.type
guard type != .unknown else
{
return nil
}
let contents: UnsafePointer<UInt8> = contentsBytes()
let l = length.value
switch type
{
case .integer:
return ASN1Object.readInt(from: contents, l: l)
case .octetString:
let data = Data(bytes: contents, count: l)
if let asn1 = try? ASN1Object.initializeASN1Object(from: data)
{
return asn1
}else{
return Data(bytes: contents, count: l)
}
case .endOfContent:
return nil
case .boolean:
return true
case .bitString:
return ""
case .null:
return nil
case .objectIdentifier:
return "objectIdentifier"
case .objectDescriptor:
return "objectIdentifier"
case .external:
return "external"
case .real:
return "real"
case .enumerated:
return "enumerated"
case .embeddedPdv:
return "embeddedPdv"
case .utf8String:
return ASN1Object.readString(from: contents, l, encoding: .utf8)
case .relativeOid:
return "relativeOid"
case .sequence:
if let asn1 = try? ASN1Object.initializeASN1Object(from: Data(bytes: contents, count: l))
{
return asn1
}else{
return "sequence"
}
case .set:
if let asn1 = try? ASN1Object.initializeASN1Object(from: Data(bytes: contents, count: l))
{
return asn1
}else{
return "set"
}
case .numericString:
return "numericString"
case .printableString:
return "printableString"
case .t61String:
return "t61String"
case .videotexString:
return "videotexString"
case .ia5String:
return ASN1Object.readString(from: contents, l, encoding: .ascii)
case .utcTime:
return "utcTime"
case .generalizedTime:
return "generalizedTime"
case .graphicString:
return "graphicString"
case .visibleString:
return "visibleString"
case .generalString:
return "generalString"
case .universalString:
return "universalString"
case .characterString:
return "characterString"
case .bmpString:
return "bmpString"
default:
return nil
}
return Data()
}
}
+9
View File
@@ -0,0 +1,9 @@
//
// ASN1Object.swift
// TPInAppReceipt iOS
//
// Created by Pavel Tikhonenko on 24/06/2019.
// Copyright © 2019 Pavel Tikhonenko. All rights reserved.
//
import Foundation
+239
View File
@@ -0,0 +1,239 @@
//
// Asn1Coder.swift
// TPInAppReceipt iOS
//
// Created by Pavel Tikhonenko on 22/06/2019.
// Copyright © 2019 Pavel Tikhonenko. All rights reserved.
//
import Foundation
class ASN1Coder
{
func decode()
{
}
}
extension ASN1Object
{
var type: ASN1Object.Identifier.`Type`
{
return identifier.type
}
}
struct ASN1Object
{
let identifier: Identifier
var length: Length
var rawData: Data! //Might be nil in this case use pointer
var pointer: UnsafePointer<UInt8> //Always awailable
var bytesCount: Int
enum Length
{
case short(value: Int)
case long(length: Int, value: Int)
}
struct Identifier
{
public enum Class: UInt8
{
case universal = 0
case application = 1
case contextSpecific = 2
case `private` = 3
}
public enum `Type`: UInt8
{
case endOfContent = 0x00
case boolean = 1
case integer = 2
case bitString = 3
case octetString = 4
case null = 5
case objectIdentifier = 6
case objectDescriptor = 7
case external = 8
case real = 9
case enumerated = 10
case embeddedPdv = 11
case utf8String = 12
case relativeOid = 13
case sequence = 16
case set = 17
case numericString = 18
case printableString = 19
case t61String = 20
case videotexString = 21
case ia5String = 22
case utcTime = 23
case generalizedTime = 24
case graphicString = 25
case visibleString = 26
case generalString = 27
case universalString = 28
case characterString = 29
case bmpString = 30
case unknown = 126
}
public enum EncodingType: UInt8
{
case primitive = 0
case constructed = 1
}
let `class`: Class
let encodingType: EncodingType
var tagNumber: UInt8
var type: `Type` { return Type(rawValue: tagNumber) ?? .unknown }
let raw: UInt8
init(data: Data) throws
{
try self.init(raw: data.uint8)
}
init(raw: UInt8) throws
{
self.raw = raw
self.tagNumber = raw & 0b11111
guard let c = Class(rawValue: (raw >> 5) & 0b11), let e = EncodingType(rawValue: (raw >> 4) & 0b1) else
{
throw ASN1Error.initializationFailed(reason: .dataIsInvalid)
}
self.class = c
self.encodingType = e
guard type != .unknown else
{
throw ASN1Error.initializationFailed(reason: .dataIsInvalid)
}
}
}
}
extension ASN1Object
{
//Using this initialization method we assume that data containt a proper asn1 object as defined by ITU-T X.690
init(data: Data)
{
rawData = data
bytesCount = 1
pointer = rawData.pointer
identifier = try! Identifier(data: data)
length = .short(value: 0)
length = ASN1Object.extractLenght(from: pointer.advanced(by: 1))
bytesCount += (length.offset + length.value)
}
//Using this initialization method we assume that pointer to asn1 object containt a proper asn1 object as defined by ITU-T X.690
init(bytes: UnsafePointer<UInt8>)
{
pointer = bytes
bytesCount = 1
identifier = try! Identifier(raw: pointer[0])
length = .short(value: 0)
length = ASN1Object.extractLenght(from: pointer.advanced(by: 1))
bytesCount += (length.offset + length.value)
}
}
extension ASN1Object.Identifier
{
var isPrimitive: Bool
{
return encodingType == .primitive
}
var isConstructed: Bool
{
return encodingType == .constructed
}
}
extension ASN1Object.Length
{
var value: Int
{
switch self
{
case .long(_, let value):
return value
case .short(let value):
return value
}
}
var offset: Int
{
switch self
{
case .long(let length, _):
return 1 + length
default:
return 1
}
}
}
//Value Data Types we expect from ASN1
protocol ASN1ExtractableValueTypes {}
extension ASN1Object: ASN1ExtractableValueTypes { }
extension Bool: ASN1ExtractableValueTypes { }
extension Data: ASN1ExtractableValueTypes { }
extension String: ASN1ExtractableValueTypes { }
extension Date: ASN1ExtractableValueTypes { }
extension Int: ASN1ExtractableValueTypes { }
/// `ASN1Error`
public enum ASN1Error: Error
{
case initializationFailed(reason: InitializationFailureReason)
case validationFailed(reason: ValidationFailureReason)
/// The underlying reason the receipt initialization error occurred.
///
/// - dataIsInvalid: Provided data don't contain any asn1 object
public enum InitializationFailureReason
{
case dataIsInvalid
}
/// The underlying reason the receipt validation error occurred.
///
/// - hashValidation: Computed hash doesn't match the hash from the receipt's payload
/// - signatureValidation: Error occurs during signature validation. It has several reasons to failure
public enum ValidationFailureReason
{
case hashValidation
case signatureValidation(SignatureValidationFailureReason)
}
/// The underlying reason the signature validation error occurred.
///
/// - rootCertificateNotFound: Apple Inc Root Certificate Not Found
/// - invalidSignature: The receipt contains invalid signature
public enum SignatureValidationFailureReason
{
case rootCertificateNotFound
case invalidSignature
}
}
+61 -3
View File
@@ -13,14 +13,58 @@ public typealias ASN1Attribute = (data: Data, type: Int)
public extension Data
{
public var pointer: UnsafePointer<UInt8>
var pointer: UnsafePointer<UInt8>
{
var bytes = [UInt8](repeating:0, count: self.count)
copyBytes(to: &bytes, count: self.count)
return UnsafePointer<UInt8>(bytes)
}
public func enumerateASN1Attributes(withBlock block: (ASN1Attribute) -> ())
func enumerateASN1AttributesNoOpenssl(withBlock block: (InAppReceiptAttribute) -> ())
{
let asn1Object = ASN1Object(data: self)
var i = 0
for item in asn1Object.enumerated()
{
var attr = InAppReceiptAttribute()
i += 1
for i in item.element.enumerated()
{
let type = i.element.identifier.type
guard type != .unknown else
{
continue
}
switch type
{
case .integer:
if let value = i.element.extractValue() as? Int
{
if attr.type == nil
{
attr.type = value
}else{
attr.version = value
}
}
break
case .octetString:
attr.value = i.element
default:
continue
}
}
block(attr)
}
}
func enumerateASN1Attributes(withBlock block: (ASN1Attribute) -> ())
{
var type: Int32 = 0
var tag: Int32 = 0
@@ -55,7 +99,6 @@ public extension Data
// Skip attribute version
asn1ConsumeObject(&ptr, sequenceEnd - ptr!)
// Check the attribute value
let data = asn1ReadOctectString(&ptr, sequenceEnd - ptr!)
block((data, attributeType))
@@ -66,5 +109,20 @@ public extension Data
ptr = ptr?.advanced(by: length)
}
}
}
}
extension Data
{
var uint8: UInt8
{
get
{
var number: UInt8 = 0
self.copyBytes(to: &number, count: MemoryLayout<UInt8>.size)
return number
}
}
}
-2
View File
@@ -53,6 +53,4 @@ public enum IARError: Error
case receiptSignedDataNotFound
case invalidSignature
}
}
+21 -17
View File
@@ -17,6 +17,7 @@ public enum InAppReceiptField: Int
case inAppPurchaseReceipt = 17 // The receipt for an in-app purchase.
case originalAppVersion = 19
case expirationDate = 21
case receiptCreationDate = 12
case quantity = 1701
case productIdentifier = 1702
@@ -51,46 +52,51 @@ public struct InAppReceipt
///
/// - parameter pkcs7: `PKCS7Wrapper` pkcs7 container of the receipt
init(pkcs7: PKCS7Wrapper)
{
self.init(pkcs7: pkcs7, payload: InAppReceiptPayload(asn1Data: pkcs7.extractASN1Data()))
}
init(pkcs7: PKCS7Wrapper, payload: InAppReceiptPayload)
{
self.pkcs7Container = pkcs7
self.payload = InAppReceiptPayload(asn1Data: pkcs7.extractASN1Data())
self.payload = payload
}
}
public extension InAppReceipt
{
/// The app’s bundle identifier
public var bundleIdentifier: String
var bundleIdentifier: String
{
return payload.bundleIdentifier
}
/// The app’s version number
public var appVersion: String
var appVersion: String
{
return payload.appVersion
}
/// The version of the app that was originally purchased.
public var originalAppVersion: String
var originalAppVersion: String
{
return payload.originalAppVersion
}
/// In-app purchase's receipts
public var purchases: [InAppPurchase]
var purchases: [InAppPurchase]
{
return payload.purchases
}
/// The date that the app receipt expires
public var expirationDate: String?
var expirationDate: String?
{
return payload.expirationDate
}
/// Returns `true` if any purchases exist, `false` otherwise
public var hasPurchases: Bool
var hasPurchases: Bool
{
return purchases.count > 0
}
@@ -98,7 +104,7 @@ public extension InAppReceipt
/// Return original transaction identifier if there is a purchase for a specific product identifier
///
/// - parameter productIdentifier: Product name
public func originalTransactionIdentifier(ofProductIdentifier productIdentifier: String) -> String?
func originalTransactionIdentifier(ofProductIdentifier productIdentifier: String) -> String?
{
return purchases(ofProductIdentifier: productIdentifier).first?.originalTransactionIdentifier
}
@@ -106,7 +112,7 @@ public extension InAppReceipt
/// Returns `true` if there is a purchase for a specific product identifier, `false` otherwise
///
/// - parameter productIdentifier: Product name
public func containsPurchase(ofProductIdentifier productIdentifier: String) -> Bool
func containsPurchase(ofProductIdentifier productIdentifier: String) -> Bool
{
for item in purchases
{
@@ -124,7 +130,7 @@ public extension InAppReceipt
///
/// - parameter productIdentifier: Product name
/// - parameter sort: Sorting block
public func purchases(ofProductIdentifier productIdentifier: String,
func purchases(ofProductIdentifier productIdentifier: String,
sortedBy sort: ((InAppPurchase, InAppPurchase) -> Bool)? = nil) -> [InAppPurchase]
{
let filtered: [InAppPurchase] = purchases.filter({
@@ -149,7 +155,7 @@ public extension InAppReceipt
/// `nil` otherwise
///
/// - parameter productIdentifier: Product name
public func activeAutoRenewableSubscriptionPurchases(ofProductIdentifier productIdentifier: String, forDate date: Date) -> InAppPurchase?
func activeAutoRenewableSubscriptionPurchases(ofProductIdentifier productIdentifier: String, forDate date: Date) -> InAppPurchase?
{
let filtered = purchases(ofProductIdentifier: productIdentifier)
@@ -170,7 +176,7 @@ public extension InAppReceipt
///
/// - parameter productIdentifier: Product name
/// - parameter date: Date to check subscription against
public func hasActiveAutoRenewableSubscription(ofProductIdentifier productIdentifier: String, forDate date: Date) -> Bool
func hasActiveAutoRenewableSubscription(ofProductIdentifier productIdentifier: String, forDate date: Date) -> Bool
{
return activeAutoRenewableSubscriptionPurchases(ofProductIdentifier: productIdentifier, forDate: date) != nil
}
@@ -179,22 +185,20 @@ public extension InAppReceipt
internal extension InAppReceipt
{
/// Used to validate the receipt
internal var bundleIdentifierData: Data
var bundleIdentifierData: Data
{
return payload.bundleIdentifierData
}
/// An opaque value used, with other data, to compute the SHA-1 hash during validation.
internal var opaqueValue: Data
var opaqueValue: Data
{
return payload.opaqueValue
}
/// A SHA-1 hash, used to validate the receipt.
internal var receiptHash: Data
var receiptHash: Data
{
return payload.receiptHash
}
}
@@ -34,6 +34,9 @@ public struct InAppReceiptPayload
/// A SHA-1 hash, used to validate the receipt.
public let receiptHash: Data
/// The date when the app receipt was created.
public let receiptCreationDate: String
/// Initialize a `InAppReceipt` with asn1 payload
///
/// - parameter asn1Data: `Data` object that represents receipt's payload
@@ -47,6 +50,7 @@ public struct InAppReceiptPayload
var opaqueValue = Data()
var receiptHash = Data()
var expirationDate: String? = ""
var receiptCreationDate: String = ""
asn1Data.enumerateASN1Attributes { (attributes) in
if let field = InAppReceiptField(rawValue: attributes.type)
@@ -70,22 +74,24 @@ public struct InAppReceiptPayload
case .receiptHash:
receiptHash = Data(bytes: bytes, count: length)
case .inAppPurchaseReceipt:
purchases.append(InAppPurchase(asn1Data: attributes.data))
break //purchases.append(InAppPurchase(asn1Data: attributes.data))
case .originalAppVersion:
originalAppVersion = asn1ReadUTF8String(&ptr, bytes.count)!
case .expirationDate:
let str = asn1ReadASCIIString(&ptr, bytes.count)
expirationDate = str
case .receiptCreationDate:
receiptCreationDate = asn1ReadASCIIString(&ptr, bytes.count)!
default:
print("attribute.type = \(attributes.type))")
}
}
}
self.init(bundleIdentifier: bundleIdentifier, appVersion: appVersion, originalAppVersion: originalAppVersion, purchases: purchases, expirationDate: expirationDate, bundleIdentifierData: bundleIdentifierData, opaqueValue: opaqueValue, receiptHash: receiptHash)
self.init(bundleIdentifier: bundleIdentifier, appVersion: appVersion, originalAppVersion: originalAppVersion, purchases: purchases, expirationDate: expirationDate, bundleIdentifierData: bundleIdentifierData, opaqueValue: opaqueValue, receiptHash: receiptHash, receiptCreationDate: receiptCreationDate)
}
fileprivate init(bundleIdentifier: String, appVersion: String, originalAppVersion: String, purchases: [InAppPurchase], expirationDate: String?, bundleIdentifierData: Data, opaqueValue: Data, receiptHash: Data)
init(bundleIdentifier: String, appVersion: String, originalAppVersion: String, purchases: [InAppPurchase], expirationDate: String?, bundleIdentifierData: Data, opaqueValue: Data, receiptHash: Data, receiptCreationDate: String)
{
self.bundleIdentifier = bundleIdentifier
self.appVersion = appVersion
@@ -95,5 +101,60 @@ public struct InAppReceiptPayload
self.bundleIdentifierData = bundleIdentifierData
self.opaqueValue = opaqueValue
self.receiptHash = receiptHash
self.receiptCreationDate = receiptCreationDate
}
}
public extension InAppReceiptPayload
{
init(noOpenSslData asn1Data: Data)
{
var bundleIdentifier = ""
var appVersion = ""
var originalAppVersion = ""
var purchases = [InAppPurchase]()
var bundleIdentifierData = Data()
var opaqueValue = Data()
var receiptHash = Data()
var expirationDate: String? = ""
var receiptCreationDate: String = ""
asn1Data.enumerateASN1AttributesNoOpenssl { (attribute) in
if let field = InAppReceiptField(rawValue: attribute.type)
{
var value = attribute.value.extractValue()
if let v = value as? ASN1Object
{
value = v.extractValue()
}
switch (field)
{
case .bundleIdentifier:
bundleIdentifier = value as! String
bundleIdentifierData = bundleIdentifier.data(using: .utf8)!
case .appVersion:
appVersion = value as! String
case .opaqueValue:
opaqueValue = value as! Data
case .receiptHash:
receiptHash = value as! Data
case .inAppPurchaseReceipt:
break
case .originalAppVersion:
originalAppVersion = value as! String
case .expirationDate:
expirationDate = value as? String
case .receiptCreationDate:
receiptCreationDate = value as! String
default:
print("attribute.type = \(String(describing: attribute.type)))")
}
}
}
self.init(bundleIdentifier: bundleIdentifier, appVersion: appVersion, originalAppVersion: originalAppVersion, purchases: purchases, expirationDate: expirationDate, bundleIdentifierData: bundleIdentifierData, opaqueValue: opaqueValue, receiptHash: receiptHash, receiptCreationDate: receiptCreationDate)
}
}
+43
View File
@@ -0,0 +1,43 @@
//
// PCKS7.swift
// TPInAppReceipt iOS
//
// Created by Pavel Tikhonenko on 22/06/2019.
// Copyright © 2019 Pavel Tikhonenko. All rights reserved.
//
import Foundation
//struct PCKS7
//{
// var data: PCKS7
// var signedData: PCKS7 { get set }
// var signedData: Bool { get set }
//
// init(isAlive: Bool)
// init(isDead: Bool)
//
// enum OID: String
// {
// case data = "1.2.840.113549.1.7.1"
// case signedData = "1.2.840.113549.1.7.2"
// case envelopedData = "1.2.840.113549.1.7.3"
// case signedAndEnvelopedData = "1.2.840.113549.1.7.4"
// case digestedData = "1.2.840.113549.1.7.5"
// case encryptedData = "1.2.840.113549.1.7.6"
// }
//}
//data OBJECT IDENTIFIER ::= { pkcs-7 1 }
//signedData OBJECT IDENTIFIER ::= { pkcs-7 2 }
//envelopedData OBJECT IDENTIFIER ::= { pkcs-7 3 }
//signedAndEnvelopedData OBJECT IDENTIFIER ::= { pkcs-7 4 }
//digestedData OBJECT IDENTIFIER ::= { pkcs-7 5 }
//encryptedData OBJECT IDENTIFIER ::= { pkcs-7 6 }
//1.2.840.113549.1.7.1 - data
//1.2.840.113549.1.7.2 - signedData
//1.2.840.113549.1.7.3 - envelopedData
//1.2.840.113549.1.7.4 - signedAndEnvelopedData
//1.2.840.113549.1.7.5 - digestedData
//1.2.840.113549.1.7.6 - encryptedData
View File
File diff suppressed because one or more lines are too long
+1
View File
@@ -4,5 +4,6 @@ module openssl [system][extern_c]
header "include/openssl/pkcs7.h"
header "include/openssl/objects.h"
header "include/openssl/x509.h"
header "include/openssl/e_os2.h"
export *
}
+652
View File
@@ -0,0 +1,652 @@
/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <BIT_STRING.h>
#include <asn_internal.h>
/*
* BIT STRING basic type description.
*/
static const ber_tlv_tag_t asn_DEF_BIT_STRING_tags[] = {
(ASN_TAG_CLASS_UNIVERSAL | (3 << 2))
};
asn_OCTET_STRING_specifics_t asn_SPC_BIT_STRING_specs = {
sizeof(BIT_STRING_t),
offsetof(BIT_STRING_t, _asn_ctx),
ASN_OSUBV_BIT
};
asn_TYPE_operation_t asn_OP_BIT_STRING = {
OCTET_STRING_free, /* Implemented in terms of OCTET STRING */
BIT_STRING_print,
BIT_STRING_compare,
OCTET_STRING_decode_ber, /* Implemented in terms of OCTET STRING */
OCTET_STRING_encode_der, /* Implemented in terms of OCTET STRING */
OCTET_STRING_decode_xer_binary,
BIT_STRING_encode_xer,
#ifdef ASN_DISABLE_OER_SUPPORT
0,
0,
#else
BIT_STRING_decode_oer,
BIT_STRING_encode_oer,
#endif /* ASN_DISABLE_OER_SUPPORT */
#ifdef ASN_DISABLE_PER_SUPPORT
0,
0,
#else
BIT_STRING_decode_uper, /* Unaligned PER decoder */
BIT_STRING_encode_uper, /* Unaligned PER encoder */
#endif /* ASN_DISABLE_PER_SUPPORT */
BIT_STRING_random_fill,
0 /* Use generic outmost tag fetcher */
};
asn_TYPE_descriptor_t asn_DEF_BIT_STRING = {
"BIT STRING",
"BIT_STRING",
&asn_OP_BIT_STRING,
asn_DEF_BIT_STRING_tags,
sizeof(asn_DEF_BIT_STRING_tags)
/ sizeof(asn_DEF_BIT_STRING_tags[0]),
asn_DEF_BIT_STRING_tags, /* Same as above */
sizeof(asn_DEF_BIT_STRING_tags)
/ sizeof(asn_DEF_BIT_STRING_tags[0]),
{ 0, 0, BIT_STRING_constraint },
0, 0, /* No members */
&asn_SPC_BIT_STRING_specs
};
/*
* BIT STRING generic constraint.
*/
int
BIT_STRING_constraint(const asn_TYPE_descriptor_t *td, const void *sptr,
asn_app_constraint_failed_f *ctfailcb, void *app_key) {
const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
if(st && st->buf) {
if((st->size == 0 && st->bits_unused)
|| st->bits_unused < 0 || st->bits_unused > 7) {
ASN__CTFAIL(app_key, td, sptr,
"%s: invalid padding byte (%s:%d)",
td->name, __FILE__, __LINE__);
return -1;
}
} else {
ASN__CTFAIL(app_key, td, sptr,
"%s: value not given (%s:%d)",
td->name, __FILE__, __LINE__);
return -1;
}
return 0;
}
static const char *_bit_pattern[16] = {
"0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111",
"1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"
};
asn_enc_rval_t
BIT_STRING_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr,
int ilevel, enum xer_encoder_flags_e flags,
asn_app_consume_bytes_f *cb, void *app_key) {
asn_enc_rval_t er;
char scratch[128];
char *p = scratch;
char *scend = scratch + (sizeof(scratch) - 10);
const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
int xcan = (flags & XER_F_CANONICAL);
uint8_t *buf;
uint8_t *end;
if(!st || !st->buf)
ASN__ENCODE_FAILED;
er.encoded = 0;
buf = st->buf;
end = buf + st->size - 1; /* Last byte is special */
/*
* Binary dump
*/
for(; buf < end; buf++) {
int v = *buf;
int nline = xcan?0:(((buf - st->buf) % 8) == 0);
if(p >= scend || nline) {
ASN__CALLBACK(scratch, p - scratch);
p = scratch;
if(nline) ASN__TEXT_INDENT(1, ilevel);
}
memcpy(p + 0, _bit_pattern[v >> 4], 4);
memcpy(p + 4, _bit_pattern[v & 0x0f], 4);
p += 8;
}
if(!xcan && ((buf - st->buf) % 8) == 0)
ASN__TEXT_INDENT(1, ilevel);
ASN__CALLBACK(scratch, p - scratch);
p = scratch;
if(buf == end) {
int v = *buf;
int ubits = st->bits_unused;
int i;
for(i = 7; i >= ubits; i--)
*p++ = (v & (1 << i)) ? 0x31 : 0x30;
ASN__CALLBACK(scratch, p - scratch);
}
if(!xcan) ASN__TEXT_INDENT(1, ilevel - 1);
ASN__ENCODED_OK(er);
cb_failed:
ASN__ENCODE_FAILED;
}
/*
* BIT STRING specific contents printer.
*/
int
BIT_STRING_print(const asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
asn_app_consume_bytes_f *cb, void *app_key) {
const char * const h2c = "0123456789ABCDEF";
char scratch[64];
const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
uint8_t *buf;
uint8_t *end;
char *p = scratch;
(void)td; /* Unused argument */
if(!st || !st->buf)
return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
ilevel++;
buf = st->buf;
end = buf + st->size;
/*
* Hexadecimal dump.
*/
for(; buf < end; buf++) {
if((buf - st->buf) % 16 == 0 && (st->size > 16)
&& buf != st->buf) {
_i_INDENT(1);
/* Dump the string */
if(cb(scratch, p - scratch, app_key) < 0) return -1;
p = scratch;
}
*p++ = h2c[*buf >> 4];
*p++ = h2c[*buf & 0x0F];
*p++ = 0x20;
}
if(p > scratch) {
p--; /* Eat the tailing space */
if((st->size > 16)) {
_i_INDENT(1);
}
/* Dump the incomplete 16-bytes row */
if(cb(scratch, p - scratch, app_key) < 0)
return -1;
}
if(st->bits_unused) {
int ret = snprintf(scratch, sizeof(scratch), " (%d bit%s unused)",
st->bits_unused, st->bits_unused == 1 ? "" : "s");
assert(ret > 0 && ret < (ssize_t)sizeof(scratch));
if(ret > 0 && ret < (ssize_t)sizeof(scratch)
&& cb(scratch, ret, app_key) < 0)
return -1;
}
return 0;
}
/*
* Non-destructively remove the trailing 0-bits from the given bit string.
*/
static const BIT_STRING_t *
BIT_STRING__compactify(const BIT_STRING_t *st, BIT_STRING_t *tmp) {
const uint8_t *b;
union {
const uint8_t *c_buf;
uint8_t *nc_buf;
} unconst;
if(st->size == 0) {
assert(st->bits_unused == 0);
return st;
} else {
for(b = &st->buf[st->size - 1]; b > st->buf && *b == 0; b--) {
;
}
/* b points to the last byte which may contain data */
if(*b) {
int unused = 7;
uint8_t v = *b;
v &= -(int8_t)v;
if(v & 0x0F) unused -= 4;
if(v & 0x33) unused -= 2;
if(v & 0x55) unused -= 1;
tmp->size = b-st->buf + 1;
tmp->bits_unused = unused;
} else {
tmp->size = b-st->buf;
tmp->bits_unused = 0;
}
assert(b >= st->buf);
}
unconst.c_buf = st->buf;
tmp->buf = unconst.nc_buf;
return tmp;
}
/*
* Lexicographically compare the common prefix of both strings,
* and if it is the same return -1 for the smallest string.
*/
int
BIT_STRING_compare(const asn_TYPE_descriptor_t *td, const void *aptr,
const void *bptr) {
/*
* Remove information about trailing bits, since
* X.680 (08/2015) #22.7 "ensure that different semantics are not"
* "associated with [values that differ only in] the trailing 0 bits."
*/
BIT_STRING_t compact_a, compact_b;
const BIT_STRING_t *a = BIT_STRING__compactify(aptr, &compact_a);
const BIT_STRING_t *b = BIT_STRING__compactify(bptr, &compact_b);
const asn_OCTET_STRING_specifics_t *specs = td->specifics;
assert(specs && specs->subvariant == ASN_OSUBV_BIT);
if(a && b) {
size_t common_prefix_size = a->size <= b->size ? a->size : b->size;
int ret = memcmp(a->buf, b->buf, common_prefix_size);
if(ret == 0) {
/* Figure out which string with equal prefixes is longer. */
if(a->size < b->size) {
return -1;
} else if(a->size > b->size) {
return 1;
} else {
/* Figure out how many unused bits */
if(a->bits_unused > b->bits_unused) {
return -1;
} else if(a->bits_unused < b->bits_unused) {
return 1;
} else {
return 0;
}
}
} else {
return ret;
}
} else if(!a && !b) {
return 0;
} else if(!a) {
return -1;
} else {
return 1;
}
}
#ifndef ASN_DISABLE_PER_SUPPORT
#undef RETURN
#define RETURN(_code) \
do { \
asn_dec_rval_t tmprval; \
tmprval.code = _code; \
tmprval.consumed = consumed_myself; \
return tmprval; \
} while(0)
static asn_per_constraint_t asn_DEF_BIT_STRING_constraint_size = {
APC_SEMI_CONSTRAINED, -1, -1, 0, 0};
asn_dec_rval_t
BIT_STRING_decode_uper(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints, void **sptr,
asn_per_data_t *pd) {
const asn_OCTET_STRING_specifics_t *specs = td->specifics
? (const asn_OCTET_STRING_specifics_t *)td->specifics
: &asn_SPC_BIT_STRING_specs;
const asn_per_constraints_t *pc =
constraints ? constraints : td->encoding_constraints.per_constraints;
const asn_per_constraint_t *csiz;
asn_dec_rval_t rval = { RC_OK, 0 };
BIT_STRING_t *st = (BIT_STRING_t *)*sptr;
ssize_t consumed_myself = 0;
int repeat;
(void)opt_codec_ctx;
if(pc) {
csiz = &pc->size;
} else {
csiz = &asn_DEF_BIT_STRING_constraint_size;
}
if(specs->subvariant != ASN_OSUBV_BIT) {
ASN_DEBUG("Subvariant %d is not BIT OSUBV_BIT", specs->subvariant);
RETURN(RC_FAIL);
}
/*
* Allocate the string.
*/
if(!st) {
st = (BIT_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
if(!st) RETURN(RC_FAIL);
}
ASN_DEBUG("PER Decoding %s size %ld .. %ld bits %d",
csiz->flags & APC_EXTENSIBLE ? "extensible" : "non-extensible",
csiz->lower_bound, csiz->upper_bound, csiz->effective_bits);
if(csiz->flags & APC_EXTENSIBLE) {
int inext = per_get_few_bits(pd, 1);
if(inext < 0) RETURN(RC_WMORE);
if(inext) {
csiz = &asn_DEF_BIT_STRING_constraint_size;
}
}
if(csiz->effective_bits >= 0) {
FREEMEM(st->buf);
st->size = (csiz->upper_bound + 7) >> 3;
st->buf = (uint8_t *)MALLOC(st->size + 1);
if(!st->buf) { st->size = 0; RETURN(RC_FAIL); }
}
/* X.691, #16.5: zero-length encoding */
/* X.691, #16.6: short fixed length encoding (up to 2 octets) */
/* X.691, #16.7: long fixed length encoding (up to 64K octets) */
if(csiz->effective_bits == 0) {
int ret;
ASN_DEBUG("Encoding BIT STRING size %ld", csiz->upper_bound);
ret = per_get_many_bits(pd, st->buf, 0, csiz->upper_bound);
if(ret < 0) RETURN(RC_WMORE);
consumed_myself += csiz->upper_bound;
st->buf[st->size] = 0;
st->bits_unused = (8 - (csiz->upper_bound & 0x7)) & 0x7;
RETURN(RC_OK);
}
st->size = 0;
do {
ssize_t raw_len;
ssize_t len_bytes;
ssize_t len_bits;
void *p;
int ret;
/* Get the PER length */
raw_len = uper_get_length(pd, csiz->effective_bits, csiz->lower_bound,
&repeat);
if(raw_len < 0) RETURN(RC_WMORE);
if(raw_len == 0 && st->buf) break;
ASN_DEBUG("Got PER length eb %ld, len %ld, %s (%s)",
(long)csiz->effective_bits, (long)raw_len,
repeat ? "repeat" : "once", td->name);
len_bits = raw_len;
len_bytes = (len_bits + 7) >> 3;
if(len_bits & 0x7) st->bits_unused = 8 - (len_bits & 0x7);
/* len_bits be multiple of 16K if repeat is set */
p = REALLOC(st->buf, st->size + len_bytes + 1);
if(!p) RETURN(RC_FAIL);
st->buf = (uint8_t *)p;
ret = per_get_many_bits(pd, &st->buf[st->size], 0, len_bits);
if(ret < 0) RETURN(RC_WMORE);
st->size += len_bytes;
} while(repeat);
st->buf[st->size] = 0; /* nul-terminate */
return rval;
}
asn_enc_rval_t
BIT_STRING_encode_uper(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, asn_per_outp_t *po) {
const asn_OCTET_STRING_specifics_t *specs =
td->specifics ? (const asn_OCTET_STRING_specifics_t *)td->specifics
: &asn_SPC_BIT_STRING_specs;
const asn_per_constraints_t *pc =
constraints ? constraints : td->encoding_constraints.per_constraints;
const asn_per_constraint_t *csiz;
const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
BIT_STRING_t compact_bstr; /* Do not modify this directly! */
asn_enc_rval_t er = { 0, 0, 0 };
int inext = 0; /* Lies not within extension root */
size_t size_in_bits;
const uint8_t *buf;
int ret;
int ct_extensible;
if(!st || (!st->buf && st->size))
ASN__ENCODE_FAILED;
if(specs->subvariant == ASN_OSUBV_BIT) {
if((st->size == 0 && st->bits_unused) || (st->bits_unused & ~7))
ASN__ENCODE_FAILED;
} else {
ASN__ENCODE_FAILED;
}
if(pc) {
csiz = &pc->size;
} else {
csiz = &asn_DEF_BIT_STRING_constraint_size;
}
ct_extensible = csiz->flags & APC_EXTENSIBLE;
/* Figure out the size without the trailing bits */
st = BIT_STRING__compactify(st, &compact_bstr);
size_in_bits = 8 * st->size - st->bits_unused;
ASN_DEBUG(
"Encoding %s into %" ASN_PRI_SIZE " bits"
" (%ld..%ld, effective %d)%s",
td->name, size_in_bits, csiz->lower_bound, csiz->upper_bound,
csiz->effective_bits, ct_extensible ? " EXT" : "");
/* Figure out whether size lies within PER visible constraint */
if(csiz->effective_bits >= 0) {
if((ssize_t)size_in_bits > csiz->upper_bound) {
if(ct_extensible) {
csiz = &asn_DEF_BIT_STRING_constraint_size;
inext = 1;
} else {
ASN__ENCODE_FAILED;
}
}
} else {
inext = 0;
}
if(ct_extensible) {
/* Declare whether length is [not] within extension root */
if(per_put_few_bits(po, inext, 1))
ASN__ENCODE_FAILED;
}
if(csiz->effective_bits >= 0 && !inext) {
int add_trailer = (ssize_t)size_in_bits < csiz->lower_bound;
ASN_DEBUG(
"Encoding %" ASN_PRI_SIZE " bytes (%ld), length (in %d bits) trailer %d; actual "
"value %" ASN_PRI_SSIZE "",
st->size, size_in_bits - csiz->lower_bound, csiz->effective_bits,
add_trailer,
add_trailer ? 0 : (ssize_t)size_in_bits - csiz->lower_bound);
ret = per_put_few_bits(
po, add_trailer ? 0 : (ssize_t)size_in_bits - csiz->lower_bound,
csiz->effective_bits);
if(ret) ASN__ENCODE_FAILED;
ret = per_put_many_bits(po, st->buf, size_in_bits);
if(ret) ASN__ENCODE_FAILED;
if(add_trailer) {
static const uint8_t zeros[16];
size_t trailing_zero_bits = csiz->lower_bound - size_in_bits;
while(trailing_zero_bits > 0) {
if(trailing_zero_bits > 8 * sizeof(zeros)) {
ret = per_put_many_bits(po, zeros, 8 * sizeof(zeros));
trailing_zero_bits -= 8 * sizeof(zeros);
} else {
ret = per_put_many_bits(po, zeros, trailing_zero_bits);
trailing_zero_bits = 0;
}
if(ret) ASN__ENCODE_FAILED;
}
}
ASN__ENCODED_OK(er);
}
ASN_DEBUG("Encoding %" ASN_PRI_SIZE " bytes", st->size);
buf = st->buf;
do {
int need_eom = 0;
ssize_t maySave = uper_put_length(po, size_in_bits, &need_eom);
if(maySave < 0) ASN__ENCODE_FAILED;
ASN_DEBUG("Encoding %" ASN_PRI_SSIZE " of %" ASN_PRI_SIZE "", maySave, size_in_bits);
ret = per_put_many_bits(po, buf, maySave);
if(ret) ASN__ENCODE_FAILED;
buf += maySave >> 3;
size_in_bits -= maySave;
assert(!(maySave & 0x07) || !size_in_bits);
if(need_eom && uper_put_length(po, 0, 0))
ASN__ENCODE_FAILED; /* End of Message length */
} while(size_in_bits);
ASN__ENCODED_OK(er);
}
#endif /* ASN_DISABLE_PER_SUPPORT */
asn_random_fill_result_t
BIT_STRING_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
const asn_encoding_constraints_t *constraints,
size_t max_length) {
const asn_OCTET_STRING_specifics_t *specs =
td->specifics ? (const asn_OCTET_STRING_specifics_t *)td->specifics
: &asn_SPC_BIT_STRING_specs;
asn_random_fill_result_t result_ok = {ARFILL_OK, 1};
asn_random_fill_result_t result_failed = {ARFILL_FAILED, 0};
asn_random_fill_result_t result_skipped = {ARFILL_SKIPPED, 0};
static unsigned lengths[] = {0, 1, 2, 3, 4, 8,
126, 127, 128, 16383, 16384, 16385,
65534, 65535, 65536, 65537};
uint8_t *buf;
uint8_t *bend;
uint8_t *b;
size_t rnd_bits, rnd_len;
BIT_STRING_t *st;
if(max_length == 0) return result_skipped;
switch(specs->subvariant) {
case ASN_OSUBV_ANY:
return result_failed;
case ASN_OSUBV_BIT:
break;
default:
break;
}
/* Figure out how far we should go */
rnd_bits = lengths[asn_random_between(
0, sizeof(lengths) / sizeof(lengths[0]) - 1)];
if(!constraints || !constraints->per_constraints)
constraints = &td->encoding_constraints;
if(constraints->per_constraints) {
const asn_per_constraint_t *pc = &constraints->per_constraints->size;
if(pc->flags & APC_CONSTRAINED) {
long suggested_upper_bound = pc->upper_bound < (ssize_t)max_length
? pc->upper_bound
: (ssize_t)max_length;
if(max_length < (size_t)pc->lower_bound) {
return result_skipped;
}
if(pc->flags & APC_EXTENSIBLE) {
switch(asn_random_between(0, 5)) {
case 0:
if(pc->lower_bound > 0) {
rnd_bits = pc->lower_bound - 1;
break;
}
/* Fall through */
case 1:
rnd_bits = pc->upper_bound + 1;
break;
case 2:
/* Keep rnd_bits from the table */
if(rnd_bits < max_length) {
break;
}
/* Fall through */
default:
rnd_bits = asn_random_between(pc->lower_bound,
suggested_upper_bound);
}
} else {
rnd_bits =
asn_random_between(pc->lower_bound, suggested_upper_bound);
}
} else {
rnd_bits = asn_random_between(0, max_length - 1);
}
} else if(rnd_bits >= max_length) {
rnd_bits = asn_random_between(0, max_length - 1);
}
rnd_len = (rnd_bits + 7) / 8;
buf = CALLOC(1, rnd_len + 1);
if(!buf) return result_failed;
bend = &buf[rnd_len];
for(b = buf; b < bend; b++) {
*(uint8_t *)b = asn_random_between(0, 255);
}
*b = 0; /* Zero-terminate just in case. */
if(*sptr) {
st = *sptr;
FREEMEM(st->buf);
} else {
st = (BIT_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
if(!st) {
FREEMEM(buf);
return result_failed;
}
}
st->buf = buf;
st->size = rnd_len;
st->bits_unused = (8 - (rnd_bits & 0x7)) & 0x7;
if(st->bits_unused) {
assert(st->size > 0);
st->buf[st->size-1] &= 0xff << st->bits_unused;
}
result_ok.length = st->size;
return result_ok;
}
+46
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _BIT_STRING_H_
#define _BIT_STRING_H_
#include <OCTET_STRING.h> /* Some help from OCTET STRING */
#ifdef __cplusplus
extern "C" {
#endif
typedef struct BIT_STRING_s {
uint8_t *buf; /* BIT STRING body */
size_t size; /* Size of the above buffer */
int bits_unused;/* Unused trailing bits in the last octet (0..7) */
asn_struct_ctx_t _asn_ctx; /* Parsing across buffer boundaries */
} BIT_STRING_t;
extern asn_TYPE_descriptor_t asn_DEF_BIT_STRING;
extern asn_TYPE_operation_t asn_OP_BIT_STRING;
extern asn_OCTET_STRING_specifics_t asn_SPC_BIT_STRING_specs;
asn_struct_print_f BIT_STRING_print; /* Human-readable output */
asn_struct_compare_f BIT_STRING_compare;
asn_constr_check_f BIT_STRING_constraint;
xer_type_encoder_f BIT_STRING_encode_xer;
oer_type_decoder_f BIT_STRING_decode_oer;
oer_type_encoder_f BIT_STRING_encode_oer;
per_type_decoder_f BIT_STRING_decode_uper;
per_type_encoder_f BIT_STRING_encode_uper;
asn_random_fill_f BIT_STRING_random_fill;
#define BIT_STRING_free OCTET_STRING_free
#define BIT_STRING_decode_ber OCTET_STRING_decode_ber
#define BIT_STRING_encode_der OCTET_STRING_encode_der
#define BIT_STRING_decode_xer OCTET_STRING_decode_xer_binary
#ifdef __cplusplus
}
#endif
#endif /* _BIT_STRING_H_ */
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+104
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _INTEGER_H_
#define _INTEGER_H_
#include <asn_application.h>
#include <asn_codecs_prim.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef ASN__PRIMITIVE_TYPE_t INTEGER_t;
extern asn_TYPE_descriptor_t asn_DEF_INTEGER;
extern asn_TYPE_operation_t asn_OP_INTEGER;
/* Map with <tag> to integer value association */
typedef struct asn_INTEGER_enum_map_s {
long nat_value; /* associated native integer value */
size_t enum_len; /* strlen("tag") */
const char *enum_name; /* "tag" */
} asn_INTEGER_enum_map_t;
/* This type describes an enumeration for INTEGER and ENUMERATED types */
typedef struct asn_INTEGER_specifics_s {
const asn_INTEGER_enum_map_t *value2enum; /* N -> "tag"; sorted by N */
const unsigned int *enum2value; /* "tag" => N; sorted by tag */
int map_count; /* Elements in either map */
int extension; /* This map is extensible */
int strict_enumeration; /* Enumeration set is fixed */
int field_width; /* Size of native integer */
int field_unsigned; /* Signed=0, unsigned=1 */
} asn_INTEGER_specifics_t;
#define INTEGER_free ASN__PRIMITIVE_TYPE_free
#define INTEGER_decode_ber ber_decode_primitive
#define INTEGER_constraint asn_generic_no_constraint
asn_struct_print_f INTEGER_print;
asn_struct_compare_f INTEGER_compare;
der_type_encoder_f INTEGER_encode_der;
xer_type_decoder_f INTEGER_decode_xer;
xer_type_encoder_f INTEGER_encode_xer;
oer_type_decoder_f INTEGER_decode_oer;
oer_type_encoder_f INTEGER_encode_oer;
per_type_decoder_f INTEGER_decode_uper;
per_type_encoder_f INTEGER_encode_uper;
asn_random_fill_f INTEGER_random_fill;
/***********************************
* Some handy conversion routines. *
***********************************/
/*
* Natiwe size-independent conversion of native integers to/from INTEGER.
* (l_size) is in bytes.
* Returns 0 if it was possible to convert, -1 otherwise.
* -1/EINVAL: Mandatory argument missing
* -1/ERANGE: Value encoded is out of range for long representation
* -1/ENOMEM: Memory allocation failed (in asn_*2INTEGER()).
*/
int asn_INTEGER2imax(const INTEGER_t *i, intmax_t *l);
int asn_INTEGER2umax(const INTEGER_t *i, uintmax_t *l);
int asn_imax2INTEGER(INTEGER_t *i, intmax_t l);
int asn_umax2INTEGER(INTEGER_t *i, uintmax_t l);
/*
* Size-specific conversion helpers.
*/
int asn_INTEGER2long(const INTEGER_t *i, long *l);
int asn_INTEGER2ulong(const INTEGER_t *i, unsigned long *l);
int asn_long2INTEGER(INTEGER_t *i, long l);
int asn_ulong2INTEGER(INTEGER_t *i, unsigned long l);
/* A version of strtol/strtoimax(3) with nicer error reporting. */
enum asn_strtox_result_e {
ASN_STRTOX_ERROR_RANGE = -3, /* Input outside of supported numeric range */
ASN_STRTOX_ERROR_INVAL = -2, /* Invalid data encountered (e.g., "+-") */
ASN_STRTOX_EXPECT_MORE = -1, /* More data expected (e.g. "+") */
ASN_STRTOX_OK = 0, /* Conversion succeded, number ends at (*end) */
ASN_STRTOX_EXTRA_DATA = 1 /* Conversion succeded, but the string has extra stuff */
};
enum asn_strtox_result_e asn_strtol_lim(const char *str, const char **end,
long *l);
enum asn_strtox_result_e asn_strtoul_lim(const char *str, const char **end,
unsigned long *l);
enum asn_strtox_result_e asn_strtoimax_lim(const char *str, const char **end,
intmax_t *l);
enum asn_strtox_result_e asn_strtoumax_lim(const char *str, const char **end,
uintmax_t *l);
/*
* Convert the integer value into the corresponding enumeration map entry.
*/
const asn_INTEGER_enum_map_t *INTEGER_map_value2enum(
const asn_INTEGER_specifics_t *specs, long value);
#ifdef __cplusplus
}
#endif
#endif /* _INTEGER_H_ */
+179
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_DISABLE_OER_SUPPORT
#include <asn_internal.h>
#include <INTEGER.h>
#include <errno.h>
asn_dec_rval_t
INTEGER_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, void **sptr,
const void *ptr, size_t size) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
asn_dec_rval_t rval = {RC_OK, 0};
INTEGER_t *st = (INTEGER_t *)*sptr;
struct asn_oer_constraint_number_s ct = {0, 0};
size_t req_bytes;
(void)opt_codec_ctx;
(void)specs;
if(!st) {
st = (INTEGER_t *)(*sptr = CALLOC(1, sizeof(*st)));
if(!st) ASN__DECODE_FAILED;
}
FREEMEM(st->buf);
st->buf = 0;
st->size = 0;
if(!constraints) constraints = td->encoding_constraints.oer_constraints;
if(constraints) ct = constraints->value;
if(ct.width) {
req_bytes = ct.width;
} else {
/* No lower bound and no upper bound, effectively */
ssize_t consumed = oer_fetch_length(ptr, size, &req_bytes);
if(consumed == 0) {
ASN__DECODE_STARVED;
} else if(consumed == -1) {
ASN__DECODE_FAILED;
}
rval.consumed += consumed;
ptr = (const char *)ptr + consumed;
size -= consumed;
}
if(req_bytes > size) {
ASN__DECODE_STARVED;
}
if(ct.positive) {
/* X.969 08/2015 10.2(a) */
unsigned msb; /* Most significant bit */
size_t useful_size;
/* Check most significant bit */
msb = *(const uint8_t *)ptr >> 7; /* yields 0 or 1 */
useful_size = msb + req_bytes;
st->buf = (uint8_t *)MALLOC(useful_size + 1);
if(!st->buf) {
ASN__DECODE_FAILED;
}
/*
* Record a large unsigned in a way not to confuse it
* with signed value.
*/
st->buf[0] = '\0';
memcpy(st->buf + msb, ptr, req_bytes);
st->buf[useful_size] = '\0'; /* Just in case, 0-terminate */
st->size = useful_size;
rval.consumed += req_bytes;
return rval;
} else {
/* X.969 08/2015 10.2(b) */
st->buf = (uint8_t *)MALLOC(req_bytes + 1);
if(!st->buf) {
ASN__DECODE_FAILED;
}
memcpy(st->buf, ptr, req_bytes);
st->buf[req_bytes] = '\0'; /* Just in case, 0-terminate */
st->size = req_bytes;
rval.consumed += req_bytes;
return rval;
}
}
/*
* Encode as Canonical OER.
*/
asn_enc_rval_t
INTEGER_encode_oer(const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, const void *sptr,
asn_app_consume_bytes_f *cb, void *app_key) {
const INTEGER_t *st = sptr;
asn_enc_rval_t er;
struct asn_oer_constraint_number_s ct = {0, 0};
const uint8_t *buf;
const uint8_t *end;
size_t useful_bytes;
size_t req_bytes = 0;
int sign = 0;
if(!st || st->size == 0) ASN__ENCODE_FAILED;
if(!constraints) constraints = td->encoding_constraints.oer_constraints;
if(constraints) ct = constraints->value;
er.encoded = 0;
buf = st->buf;
end = buf + st->size;
sign = (buf && buf < end) ? buf[0] & 0x80 : 0;
/* Ignore 9 leading zeroes or ones */
if(ct.positive) {
if(sign) {
/* The value given is a signed value. Can't proceed. */
ASN__ENCODE_FAILED;
}
/* Remove leading zeros. */
for(; buf + 1 < end; buf++) {
if(buf[0] != 0x0) break;
}
} else {
for(; buf + 1 < end; buf++) {
if(buf[0] == 0x0 && (buf[1] & 0x80) == 0) {
continue;
} else if(buf[0] == 0xff && (buf[1] & 0x80) != 0) {
continue;
}
break;
}
}
useful_bytes = end - buf;
if(ct.width) {
req_bytes = ct.width;
} else {
ssize_t r = oer_serialize_length(useful_bytes, cb, app_key);
if(r < 0) {
ASN__ENCODE_FAILED;
}
er.encoded += r;
req_bytes = useful_bytes;
}
if(req_bytes < useful_bytes) {
ASN__ENCODE_FAILED;
}
er.encoded += req_bytes;
for(; req_bytes > useful_bytes; req_bytes--) {
if(cb(sign?"\xff":"\0", 1, app_key) < 0) {
ASN__ENCODE_FAILED;
}
}
if(cb(buf, useful_bytes, app_key) < 0) {
ASN__ENCODE_FAILED;
}
ASN__ENCODED_OK(er);
}
#endif /* ASN_DISABLE_OER_SUPPORT */
+14
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@@ -0,0 +1,14 @@
include Makefile.am.libasncodec
bin_PROGRAMS += asn1convert
asn1convert_CFLAGS = $(ASN_MODULE_CFLAGS) -DASN_PDU_COLLECTION
asn1convert_CPPFLAGS = -I$(top_srcdir)/
asn1convert_LDADD = libasncodec.la
asn1convert_SOURCES = \
converter-example.c\
pdu_collection.c
regen: regenerate-from-asn1-source
regenerate-from-asn1-source:
asn1c -fnative-types ASN1PayloadStructure
+86
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@@ -0,0 +1,86 @@
ASN_MODULE_SRCS= \
ReceiptAttribute.c \
Payload.c
ASN_MODULE_HDRS= \
ReceiptAttribute.h \
Payload.h
ASN_MODULE_HDRS+=OPEN_TYPE.h
ASN_MODULE_SRCS+=OPEN_TYPE.c
ASN_MODULE_HDRS+=constr_CHOICE.h
ASN_MODULE_HDRS+=INTEGER.h
ASN_MODULE_SRCS+=INTEGER.c
ASN_MODULE_HDRS+=NativeInteger.h
ASN_MODULE_SRCS+=NativeInteger.c
ASN_MODULE_HDRS+=asn_SET_OF.h
ASN_MODULE_SRCS+=asn_SET_OF.c
ASN_MODULE_SRCS+=constr_CHOICE.c
ASN_MODULE_HDRS+=constr_SEQUENCE.h
ASN_MODULE_SRCS+=constr_SEQUENCE.c
ASN_MODULE_HDRS+=constr_SET_OF.h
ASN_MODULE_SRCS+=constr_SET_OF.c
ASN_MODULE_HDRS+=asn_application.h
ASN_MODULE_SRCS+=asn_application.c
ASN_MODULE_HDRS+=asn_ioc.h
ASN_MODULE_HDRS+=asn_system.h
ASN_MODULE_HDRS+=asn_codecs.h
ASN_MODULE_HDRS+=asn_internal.h
ASN_MODULE_SRCS+=asn_internal.c
ASN_MODULE_HDRS+=asn_random_fill.h
ASN_MODULE_SRCS+=asn_random_fill.c
ASN_MODULE_HDRS+=asn_bit_data.h
ASN_MODULE_SRCS+=asn_bit_data.c
ASN_MODULE_HDRS+=OCTET_STRING.h
ASN_MODULE_SRCS+=OCTET_STRING.c
ASN_MODULE_HDRS+=BIT_STRING.h
ASN_MODULE_SRCS+=BIT_STRING.c
ASN_MODULE_SRCS+=asn_codecs_prim.c
ASN_MODULE_HDRS+=asn_codecs_prim.h
ASN_MODULE_HDRS+=ber_tlv_length.h
ASN_MODULE_SRCS+=ber_tlv_length.c
ASN_MODULE_HDRS+=ber_tlv_tag.h
ASN_MODULE_SRCS+=ber_tlv_tag.c
ASN_MODULE_HDRS+=ber_decoder.h
ASN_MODULE_SRCS+=ber_decoder.c
ASN_MODULE_HDRS+=der_encoder.h
ASN_MODULE_SRCS+=der_encoder.c
ASN_MODULE_HDRS+=constr_TYPE.h
ASN_MODULE_SRCS+=constr_TYPE.c
ASN_MODULE_HDRS+=constraints.h
ASN_MODULE_SRCS+=constraints.c
ASN_MODULE_HDRS+=xer_support.h
ASN_MODULE_SRCS+=xer_support.c
ASN_MODULE_HDRS+=xer_decoder.h
ASN_MODULE_SRCS+=xer_decoder.c
ASN_MODULE_HDRS+=xer_encoder.h
ASN_MODULE_SRCS+=xer_encoder.c
ASN_MODULE_HDRS+=per_support.h
ASN_MODULE_SRCS+=per_support.c
ASN_MODULE_HDRS+=per_decoder.h
ASN_MODULE_SRCS+=per_decoder.c
ASN_MODULE_HDRS+=per_encoder.h
ASN_MODULE_SRCS+=per_encoder.c
ASN_MODULE_HDRS+=per_opentype.h
ASN_MODULE_SRCS+=per_opentype.c
ASN_MODULE_HDRS+=oer_decoder.h
ASN_MODULE_HDRS+=oer_encoder.h
ASN_MODULE_HDRS+=oer_support.h
ASN_MODULE_SRCS+=oer_decoder.c
ASN_MODULE_SRCS+=oer_encoder.c
ASN_MODULE_SRCS+=oer_support.c
ASN_MODULE_SRCS+=OPEN_TYPE_oer.c
ASN_MODULE_SRCS+=INTEGER_oer.c
ASN_MODULE_SRCS+=OCTET_STRING_oer.c
ASN_MODULE_SRCS+=NativeInteger_oer.c
ASN_MODULE_SRCS+=constr_CHOICE_oer.c
ASN_MODULE_SRCS+=constr_SEQUENCE_oer.c
ASN_MODULE_SRCS+=constr_SET_OF_oer.c
ASN_MODULE_CFLAGS=
lib_LTLIBRARIES+=libasncodec.la
libasncodec_la_SOURCES=$(ASN_MODULE_SRCS) $(ASN_MODULE_HDRS)
libasncodec_la_CPPFLAGS=-I$(top_srcdir)/
libasncodec_la_CFLAGS=$(ASN_MODULE_CFLAGS)
libasncodec_la_LDFLAGS=-lm
+484
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/*-
* Copyright (c) 2004, 2005, 2006 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
/*
* Read the NativeInteger.h for the explanation wrt. differences between
* INTEGER and NativeInteger.
* Basically, both are decoders and encoders of ASN.1 INTEGER type, but this
* implementation deals with the standard (machine-specific) representation
* of them instead of using the platform-independent buffer.
*/
#include <asn_internal.h>
#include <NativeInteger.h>
/*
* NativeInteger basic type description.
*/
static const ber_tlv_tag_t asn_DEF_NativeInteger_tags[] = {
(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
};
asn_TYPE_operation_t asn_OP_NativeInteger = {
NativeInteger_free,
NativeInteger_print,
NativeInteger_compare,
NativeInteger_decode_ber,
NativeInteger_encode_der,
NativeInteger_decode_xer,
NativeInteger_encode_xer,
#ifdef ASN_DISABLE_OER_SUPPORT
0,
0,
#else
NativeInteger_decode_oer, /* OER decoder */
NativeInteger_encode_oer, /* Canonical OER encoder */
#endif /* ASN_DISABLE_OER_SUPPORT */
#ifdef ASN_DISABLE_PER_SUPPORT
0,
0,
#else
NativeInteger_decode_uper, /* Unaligned PER decoder */
NativeInteger_encode_uper, /* Unaligned PER encoder */
#endif /* ASN_DISABLE_PER_SUPPORT */
NativeInteger_random_fill,
0 /* Use generic outmost tag fetcher */
};
asn_TYPE_descriptor_t asn_DEF_NativeInteger = {
"INTEGER", /* The ASN.1 type is still INTEGER */
"INTEGER",
&asn_OP_NativeInteger,
asn_DEF_NativeInteger_tags,
sizeof(asn_DEF_NativeInteger_tags) / sizeof(asn_DEF_NativeInteger_tags[0]),
asn_DEF_NativeInteger_tags, /* Same as above */
sizeof(asn_DEF_NativeInteger_tags) / sizeof(asn_DEF_NativeInteger_tags[0]),
{ 0, 0, asn_generic_no_constraint },
0, 0, /* No members */
0 /* No specifics */
};
/*
* Decode INTEGER type.
*/
asn_dec_rval_t
NativeInteger_decode_ber(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void **nint_ptr,
const void *buf_ptr, size_t size, int tag_mode) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
long *native = (long *)*nint_ptr;
asn_dec_rval_t rval;
ber_tlv_len_t length;
/*
* If the structure is not there, allocate it.
*/
if(native == NULL) {
native = (long *)(*nint_ptr = CALLOC(1, sizeof(*native)));
if(native == NULL) {
rval.code = RC_FAIL;
rval.consumed = 0;
return rval;
}
}
ASN_DEBUG("Decoding %s as INTEGER (tm=%d)",
td->name, tag_mode);
/*
* Check tags.
*/
rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size,
tag_mode, 0, &length, 0);
if(rval.code != RC_OK)
return rval;
ASN_DEBUG("%s length is %d bytes", td->name, (int)length);
/*
* Make sure we have this length.
*/
buf_ptr = ((const char *)buf_ptr) + rval.consumed;
size -= rval.consumed;
if(length > (ber_tlv_len_t)size) {
rval.code = RC_WMORE;
rval.consumed = 0;
return rval;
}
/*
* ASN.1 encoded INTEGER: buf_ptr, length
* Fill the native, at the same time checking for overflow.
* If overflow occured, return with RC_FAIL.
*/
{
INTEGER_t tmp;
union {
const void *constbuf;
void *nonconstbuf;
} unconst_buf;
long l;
unconst_buf.constbuf = buf_ptr;
tmp.buf = (uint8_t *)unconst_buf.nonconstbuf;
tmp.size = length;
if((specs&&specs->field_unsigned)
? asn_INTEGER2ulong(&tmp, (unsigned long *)&l) /* sic */
: asn_INTEGER2long(&tmp, &l)) {
rval.code = RC_FAIL;
rval.consumed = 0;
return rval;
}
*native = l;
}
rval.code = RC_OK;
rval.consumed += length;
ASN_DEBUG("Took %ld/%ld bytes to encode %s (%ld)",
(long)rval.consumed, (long)length, td->name, (long)*native);
return rval;
}
/*
* Encode the NativeInteger using the standard INTEGER type DER encoder.
*/
asn_enc_rval_t
NativeInteger_encode_der(const asn_TYPE_descriptor_t *sd, const void *ptr,
int tag_mode, ber_tlv_tag_t tag,
asn_app_consume_bytes_f *cb, void *app_key) {
unsigned long native = *(const unsigned long *)ptr; /* Disable sign ext. */
asn_enc_rval_t erval;
INTEGER_t tmp;
#ifdef WORDS_BIGENDIAN /* Opportunistic optimization */
tmp.buf = (uint8_t *)&native;
tmp.size = sizeof(native);
#else /* Works even if WORDS_BIGENDIAN is not set where should've been */
uint8_t buf[sizeof(native)];
uint8_t *p;
/* Prepare a fake INTEGER */
for(p = buf + sizeof(buf) - 1; p >= buf; p--, native >>= 8)
*p = (uint8_t)native;
tmp.buf = buf;
tmp.size = sizeof(buf);
#endif /* WORDS_BIGENDIAN */
/* Encode fake INTEGER */
erval = INTEGER_encode_der(sd, &tmp, tag_mode, tag, cb, app_key);
if(erval.structure_ptr == &tmp) {
erval.structure_ptr = ptr;
}
return erval;
}
/*
* Decode the chunk of XML text encoding INTEGER.
*/
asn_dec_rval_t
NativeInteger_decode_xer(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void **sptr,
const char *opt_mname, const void *buf_ptr,
size_t size) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
asn_dec_rval_t rval;
INTEGER_t st;
void *st_ptr = (void *)&st;
long *native = (long *)*sptr;
if(!native) {
native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
if(!native) ASN__DECODE_FAILED;
}
memset(&st, 0, sizeof(st));
rval = INTEGER_decode_xer(opt_codec_ctx, td, &st_ptr,
opt_mname, buf_ptr, size);
if(rval.code == RC_OK) {
long l;
if((specs&&specs->field_unsigned)
? asn_INTEGER2ulong(&st, (unsigned long *)&l) /* sic */
: asn_INTEGER2long(&st, &l)) {
rval.code = RC_FAIL;
rval.consumed = 0;
} else {
*native = l;
}
} else {
/*
* Cannot restart from the middle;
* there is no place to save state in the native type.
* Request a continuation from the very beginning.
*/
rval.consumed = 0;
}
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &st);
return rval;
}
asn_enc_rval_t
NativeInteger_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr,
int ilevel, enum xer_encoder_flags_e flags,
asn_app_consume_bytes_f *cb, void *app_key) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
char scratch[32]; /* Enough for 64-bit int */
asn_enc_rval_t er;
const long *native = (const long *)sptr;
(void)ilevel;
(void)flags;
if(!native) ASN__ENCODE_FAILED;
er.encoded = snprintf(scratch, sizeof(scratch),
(specs && specs->field_unsigned)
? "%lu" : "%ld", *native);
if(er.encoded <= 0 || (size_t)er.encoded >= sizeof(scratch)
|| cb(scratch, er.encoded, app_key) < 0)
ASN__ENCODE_FAILED;
ASN__ENCODED_OK(er);
}
#ifndef ASN_DISABLE_PER_SUPPORT
asn_dec_rval_t
NativeInteger_decode_uper(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints, void **sptr,
asn_per_data_t *pd) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
asn_dec_rval_t rval;
long *native = (long *)*sptr;
INTEGER_t tmpint;
void *tmpintptr = &tmpint;
(void)opt_codec_ctx;
ASN_DEBUG("Decoding NativeInteger %s (UPER)", td->name);
if(!native) {
native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
if(!native) ASN__DECODE_FAILED;
}
memset(&tmpint, 0, sizeof tmpint);
rval = INTEGER_decode_uper(opt_codec_ctx, td, constraints,
&tmpintptr, pd);
if(rval.code == RC_OK) {
if((specs&&specs->field_unsigned)
? asn_INTEGER2ulong(&tmpint, (unsigned long *)native)
: asn_INTEGER2long(&tmpint, native))
rval.code = RC_FAIL;
else
ASN_DEBUG("NativeInteger %s got value %ld",
td->name, *native);
}
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
return rval;
}
asn_enc_rval_t
NativeInteger_encode_uper(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, asn_per_outp_t *po) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
asn_enc_rval_t er;
long native;
INTEGER_t tmpint;
if(!sptr) ASN__ENCODE_FAILED;
native = *(const long *)sptr;
ASN_DEBUG("Encoding NativeInteger %s %ld (UPER)", td->name, native);
memset(&tmpint, 0, sizeof(tmpint));
if((specs&&specs->field_unsigned)
? asn_ulong2INTEGER(&tmpint, native)
: asn_long2INTEGER(&tmpint, native))
ASN__ENCODE_FAILED;
er = INTEGER_encode_uper(td, constraints, &tmpint, po);
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
return er;
}
#endif /* ASN_DISABLE_PER_SUPPORT */
/*
* INTEGER specific human-readable output.
*/
int
NativeInteger_print(const asn_TYPE_descriptor_t *td, const void *sptr,
int ilevel, asn_app_consume_bytes_f *cb, void *app_key) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
const long *native = (const long *)sptr;
char scratch[32]; /* Enough for 64-bit int */
int ret;
(void)td; /* Unused argument */
(void)ilevel; /* Unused argument */
if(native) {
long value = *native;
ret = snprintf(scratch, sizeof(scratch),
(specs && specs->field_unsigned) ? "%lu" : "%ld", value);
assert(ret > 0 && (size_t)ret < sizeof(scratch));
if(cb(scratch, ret, app_key) < 0) return -1;
if(specs && (value >= 0 || !specs->field_unsigned)) {
const asn_INTEGER_enum_map_t *el =
INTEGER_map_value2enum(specs, value);
if(el) {
if(cb(" (", 2, app_key) < 0) return -1;
if(cb(el->enum_name, el->enum_len, app_key) < 0) return -1;
if(cb(")", 1, app_key) < 0) return -1;
}
}
return 0;
} else {
return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
}
}
void
NativeInteger_free(const asn_TYPE_descriptor_t *td, void *ptr,
enum asn_struct_free_method method) {
if(!td || !ptr)
return;
ASN_DEBUG("Freeing %s as INTEGER (%d, %p, Native)",
td->name, method, ptr);
switch(method) {
case ASFM_FREE_EVERYTHING:
FREEMEM(ptr);
break;
case ASFM_FREE_UNDERLYING:
break;
case ASFM_FREE_UNDERLYING_AND_RESET:
memset(ptr, 0, sizeof(long));
break;
}
}
int
NativeInteger_compare(const asn_TYPE_descriptor_t *td, const void *aptr, const void *bptr) {
(void)td;
if(aptr && bptr) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
if(specs && specs->field_unsigned) {
const unsigned long *a = aptr;
const unsigned long *b = bptr;
if(*a < *b) {
return -1;
} else if(*a > *b) {
return 1;
} else {
return 0;
}
} else {
const long *a = aptr;
const long *b = bptr;
if(*a < *b) {
return -1;
} else if(*a > *b) {
return 1;
} else {
return 0;
}
}
} else if(!aptr) {
return -1;
} else {
return 1;
}
}
asn_random_fill_result_t
NativeInteger_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
const asn_encoding_constraints_t *constraints,
size_t max_length) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
asn_random_fill_result_t result_ok = {ARFILL_OK, 1};
asn_random_fill_result_t result_failed = {ARFILL_FAILED, 0};
asn_random_fill_result_t result_skipped = {ARFILL_SKIPPED, 0};
long *st = *sptr;
const asn_INTEGER_enum_map_t *emap;
size_t emap_len;
intmax_t value;
int find_inside_map;
if(max_length == 0) return result_skipped;
if(st == NULL) {
st = (long *)CALLOC(1, sizeof(*st));
if(st == NULL) {
return result_failed;
}
}
if(specs) {
emap = specs->value2enum;
emap_len = specs->map_count;
if(specs->strict_enumeration) {
find_inside_map = emap_len > 0;
} else {
find_inside_map = emap_len ? asn_random_between(0, 1) : 0;
}
} else {
emap = 0;
emap_len = 0;
find_inside_map = 0;
}
if(find_inside_map) {
assert(emap_len > 0);
value = emap[asn_random_between(0, emap_len - 1)].nat_value;
} else {
const asn_per_constraints_t *ct;
static const long variants[] = {
-65536, -65535, -65534, -32769, -32768, -32767, -16385, -16384,
-16383, -257, -256, -255, -254, -129, -128, -127,
-126, -1, 0, 1, 126, 127, 128, 129,
254, 255, 256, 257, 16383, 16384, 16385, 32767,
32768, 32769, 65534, 65535, 65536, 65537};
if(specs && specs->field_unsigned) {
assert(variants[18] == 0);
value = variants[asn_random_between(
18, sizeof(variants) / sizeof(variants[0]) - 1)];
} else {
value = variants[asn_random_between(
0, sizeof(variants) / sizeof(variants[0]) - 1)];
}
if(!constraints) constraints = &td->encoding_constraints;
ct = constraints ? constraints->per_constraints : 0;
if(ct && (ct->value.flags & APC_CONSTRAINED)) {
if(value < ct->value.lower_bound || value > ct->value.upper_bound) {
value = asn_random_between(ct->value.lower_bound,
ct->value.upper_bound);
}
}
}
*sptr = st;
*st = value;
return result_ok;
}
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/*-
* Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
/*
* This type differs from the standard INTEGER in that it is modelled using
* the fixed machine type (long, int, short), so it can hold only values of
* limited length. There is no type (i.e., NativeInteger_t, any integer type
* will do).
* This type may be used when integer range is limited by subtype constraints.
*/
#ifndef _NativeInteger_H_
#define _NativeInteger_H_
#include <asn_application.h>
#include <INTEGER.h>
#ifdef __cplusplus
extern "C" {
#endif
extern asn_TYPE_descriptor_t asn_DEF_NativeInteger;
extern asn_TYPE_operation_t asn_OP_NativeInteger;
asn_struct_free_f NativeInteger_free;
asn_struct_print_f NativeInteger_print;
asn_struct_compare_f NativeInteger_compare;
ber_type_decoder_f NativeInteger_decode_ber;
der_type_encoder_f NativeInteger_encode_der;
xer_type_decoder_f NativeInteger_decode_xer;
xer_type_encoder_f NativeInteger_encode_xer;
oer_type_decoder_f NativeInteger_decode_oer;
oer_type_encoder_f NativeInteger_encode_oer;
per_type_decoder_f NativeInteger_decode_uper;
per_type_encoder_f NativeInteger_encode_uper;
asn_random_fill_f NativeInteger_random_fill;
#define NativeInteger_constraint asn_generic_no_constraint
#ifdef __cplusplus
}
#endif
#endif /* _NativeInteger_H_ */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_DISABLE_OER_SUPPORT
#include <asn_internal.h>
#include <NativeInteger.h>
#include <errno.h>
asn_dec_rval_t
NativeInteger_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints,
void **nint_ptr, const void *ptr, size_t size) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
asn_dec_rval_t rval = {RC_OK, 0};
long *native = (long *)*nint_ptr;
INTEGER_t tmpint;
INTEGER_t *tmpintptr = &tmpint;
memset(&tmpint, 0, sizeof(tmpint));
if(!native) {
native = (long *)(*nint_ptr = CALLOC(1, sizeof(*native)));
if(!native) ASN__DECODE_FAILED;
}
/*
* OPTIMIZATION: Encode directly rather than passing through INTEGER.
* Saves a memory allocation.
*/
rval = INTEGER_decode_oer(opt_codec_ctx, td, constraints,
(void **)&tmpintptr, ptr, size);
if(rval.code != RC_OK) {
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
return rval;
}
if(specs && specs->field_unsigned) {
unsigned long ul;
int ok = asn_INTEGER2ulong(&tmpint, &ul) == 0;
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
if(ok) {
*native = ul;
} else {
rval.code = RC_FAIL;
return rval;
}
} else {
long l;
int ok = asn_INTEGER2long(&tmpint, &l) == 0;
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
if(ok) {
*native = l;
} else {
rval.code = RC_FAIL;
return rval;
}
}
return rval;
}
/*
* Encode as Canonical OER.
*/
asn_enc_rval_t
NativeInteger_encode_oer(const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints,
const void *sptr, asn_app_consume_bytes_f *cb,
void *app_key) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
INTEGER_t tmpint;
long native;
if(!sptr) ASN__ENCODE_FAILED;
native = *(const long *)sptr;
memset(&tmpint, 0, sizeof(tmpint));
ASN_DEBUG("Encoding %s %ld as NativeInteger", td ? td->name : "", native);
if((specs && specs->field_unsigned) ? asn_ulong2INTEGER(&tmpint, native)
: asn_long2INTEGER(&tmpint, native)) {
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
ASN__ENCODE_FAILED;
} else {
asn_enc_rval_t er =
INTEGER_encode_oer(td, constraints, &tmpint, cb, app_key);
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
return er;
}
}
#endif /* ASN_DISABLE_OER_SUPPORT */
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _OCTET_STRING_H_
#define _OCTET_STRING_H_
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct OCTET_STRING {
uint8_t *buf; /* Buffer with consecutive OCTET_STRING bits */
size_t size; /* Size of the buffer */
asn_struct_ctx_t _asn_ctx; /* Parsing across buffer boundaries */
} OCTET_STRING_t;
extern asn_TYPE_descriptor_t asn_DEF_OCTET_STRING;
extern asn_TYPE_operation_t asn_OP_OCTET_STRING;
asn_struct_free_f OCTET_STRING_free;
asn_struct_print_f OCTET_STRING_print;
asn_struct_print_f OCTET_STRING_print_utf8;
asn_struct_compare_f OCTET_STRING_compare;
ber_type_decoder_f OCTET_STRING_decode_ber;
der_type_encoder_f OCTET_STRING_encode_der;
xer_type_decoder_f OCTET_STRING_decode_xer_hex; /* Hexadecimal */
xer_type_decoder_f OCTET_STRING_decode_xer_binary; /* 01010111010 */
xer_type_decoder_f OCTET_STRING_decode_xer_utf8; /* ASCII/UTF-8 */
xer_type_encoder_f OCTET_STRING_encode_xer;
xer_type_encoder_f OCTET_STRING_encode_xer_utf8;
oer_type_decoder_f OCTET_STRING_decode_oer;
oer_type_encoder_f OCTET_STRING_encode_oer;
per_type_decoder_f OCTET_STRING_decode_uper;
per_type_encoder_f OCTET_STRING_encode_uper;
asn_random_fill_f OCTET_STRING_random_fill;
#define OCTET_STRING_constraint asn_generic_no_constraint
#define OCTET_STRING_decode_xer OCTET_STRING_decode_xer_hex
/******************************
* Handy conversion routines. *
******************************/
/*
* This function clears the previous value of the OCTET STRING (if any)
* and then allocates a new memory with the specified content (str/size).
* If size = -1, the size of the original string will be determined
* using strlen(str).
* If str equals to NULL, the function will silently clear the
* current contents of the OCTET STRING.
* Returns 0 if it was possible to perform operation, -1 otherwise.
*/
int OCTET_STRING_fromBuf(OCTET_STRING_t *s, const char *str, int size);
/* Handy conversion from the C string into the OCTET STRING. */
#define OCTET_STRING_fromString(s, str) OCTET_STRING_fromBuf(s, str, -1)
/*
* Allocate and fill the new OCTET STRING and return a pointer to the newly
* allocated object. NULL is permitted in str: the function will just allocate
* empty OCTET STRING.
*/
OCTET_STRING_t *OCTET_STRING_new_fromBuf(const asn_TYPE_descriptor_t *td,
const char *str, int size);
/****************************
* Internally useful stuff. *
****************************/
typedef struct asn_OCTET_STRING_specifics_s {
/*
* Target structure description.
*/
unsigned struct_size; /* Size of the structure */
unsigned ctx_offset; /* Offset of the asn_struct_ctx_t member */
enum asn_OS_Subvariant {
ASN_OSUBV_ANY, /* The open type (ANY) */
ASN_OSUBV_BIT, /* BIT STRING */
ASN_OSUBV_STR, /* String types, not {BMP,Universal}String */
ASN_OSUBV_U16, /* 16-bit character (BMPString) */
ASN_OSUBV_U32 /* 32-bit character (UniversalString) */
} subvariant;
} asn_OCTET_STRING_specifics_t;
extern asn_OCTET_STRING_specifics_t asn_SPC_OCTET_STRING_specs;
size_t OCTET_STRING_random_length_constrained(
const asn_TYPE_descriptor_t *, const asn_encoding_constraints_t *,
size_t max_length);
#ifdef __cplusplus
}
#endif
#endif /* _OCTET_STRING_H_ */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_DISABLE_OER_SUPPORT
#include <asn_internal.h>
#include <OCTET_STRING.h>
#include <errno.h>
asn_dec_rval_t
OCTET_STRING_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, void **sptr,
const void *ptr, size_t size) {
const asn_OCTET_STRING_specifics_t *specs =
td->specifics ? (const asn_OCTET_STRING_specifics_t *)td->specifics
: &asn_SPC_OCTET_STRING_specs;
OCTET_STRING_t *st = (OCTET_STRING_t *)*sptr;
const asn_oer_constraints_t *cts =
constraints ? constraints : td->encoding_constraints.oer_constraints;
ssize_t ct_size = cts ? cts->size : -1;
asn_dec_rval_t rval = {RC_OK, 0};
size_t expected_length = 0;
size_t unit_bytes;
switch(specs->subvariant) {
default:
case ASN_OSUBV_BIT:
ASN_DEBUG("Invalid use of OCTET STRING to decode BIT STRING");
ASN__DECODE_FAILED;
case ASN_OSUBV_ANY:
/* Fall through */
case ASN_OSUBV_STR:
unit_bytes = 1;
break;
case ASN_OSUBV_U16:
unit_bytes = 2;
break;
case ASN_OSUBV_U32:
unit_bytes = 4;
break;
}
(void)opt_codec_ctx;
if(!st) {
st = (OCTET_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
if(!st) ASN__DECODE_FAILED;
}
if(ct_size >= 0) {
expected_length = unit_bytes * ct_size;
} else {
/*
* X.696 (08/2015) #27.2
* Encode length determinant as _number of octets_, but only
* if upper bound is not equal to lower bound.
*/
ssize_t len_len = oer_fetch_length(ptr, size, &expected_length);
if(len_len > 0) {
rval.consumed = len_len;
ptr = (const char *)ptr + len_len;
size -= len_len;
} else if(len_len == 0) {
ASN__DECODE_STARVED;
} else if(len_len < 0) {
ASN__DECODE_FAILED;
}
if(expected_length % unit_bytes != 0) {
ASN_DEBUG(
"Data size %" ASN_PRI_SIZE " bytes is not consistent with multiplier %" ASN_PRI_SIZE "",
expected_length, unit_bytes);
ASN__DECODE_FAILED;
}
}
if(size < expected_length) {
ASN__DECODE_STARVED;
} else {
uint8_t *buf = MALLOC(expected_length + 1);
if(buf == NULL) {
ASN__DECODE_FAILED;
} else {
memcpy(buf, ptr, expected_length);
buf[expected_length] = '\0';
}
FREEMEM(st->buf);
st->buf = buf;
st->size = expected_length;
rval.consumed += expected_length;
return rval;
}
}
/*
* Encode as Canonical OER.
*/
asn_enc_rval_t
OCTET_STRING_encode_oer(const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints,
const void *sptr, asn_app_consume_bytes_f *cb,
void *app_key) {
const asn_OCTET_STRING_specifics_t *specs =
td->specifics ? (const asn_OCTET_STRING_specifics_t *)td->specifics
: &asn_SPC_OCTET_STRING_specs;
const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
const asn_oer_constraints_t *cts =
constraints ? constraints : td->encoding_constraints.oer_constraints;
ssize_t ct_size = cts ? cts->size : -1;
asn_enc_rval_t er = {0, 0, 0};
if(!st) ASN__ENCODE_FAILED;
ASN_DEBUG("Encoding %s %" ASN_PRI_SIZE " as OCTET STRING", td ? td->name : "", st->size);
if(ct_size >= 0) {
/*
* Check that available data matches the constraint
*/
size_t unit_bytes;
switch(specs->subvariant) {
default:
case ASN_OSUBV_BIT:
ASN_DEBUG("Invalid use of OCTET STRING to encode BIT STRING");
ASN__ENCODE_FAILED;
case ASN_OSUBV_ANY:
/* Fall through */
case ASN_OSUBV_STR:
unit_bytes = 1;
break;
case ASN_OSUBV_U16:
unit_bytes = 2;
break;
case ASN_OSUBV_U32:
unit_bytes = 4;
break;
}
if(st->size != unit_bytes * (size_t)ct_size) {
ASN_DEBUG(
"Trying to encode %s (%" ASN_PRI_SIZE " bytes) which doesn't fit SIZE "
"constraint (%" ASN_PRI_SIZE ")",
td->name, st->size, ct_size);
ASN__ENCODE_FAILED;
}
} else {
/*
* X.696 (08/2015) #27.2
* Encode length determinant as _number of octets_, but only
* if upper bound is not equal to lower bound.
*/
ssize_t ret = oer_serialize_length(st->size, cb, app_key);
if(ret < 0) {
ASN__ENCODE_FAILED;
}
er.encoded += ret;
}
er.encoded += st->size;
if(cb(st->buf, st->size, app_key) < 0) {
ASN__ENCODE_FAILED;
} else {
ASN__ENCODED_OK(er);
}
}
#endif /* ASN_DISABLE_OER_SUPPORT */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <OPEN_TYPE.h>
#include <constr_CHOICE.h>
#include <per_opentype.h>
#include <errno.h>
asn_TYPE_operation_t asn_OP_OPEN_TYPE = {
OPEN_TYPE_free,
OPEN_TYPE_print,
OPEN_TYPE_compare,
OPEN_TYPE_decode_ber,
OPEN_TYPE_encode_der,
OPEN_TYPE_decode_xer,
OPEN_TYPE_encode_xer,
0, 0, /* No OER support, use "-gen-OER" to enable */
#ifdef ASN_DISABLE_PER_SUPPORT
0, 0,
#else
OPEN_TYPE_decode_uper,
OPEN_TYPE_encode_uper,
#endif
0, /* Random fill is not supported for open type */
0, /* Use generic outmost tag fetcher */
};
#undef ADVANCE
#define ADVANCE(num_bytes) \
do { \
size_t num = num_bytes; \
ptr = ((const char *)ptr) + num; \
size -= num; \
consumed_myself += num; \
} while(0)
asn_dec_rval_t
OPEN_TYPE_ber_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void *sptr,
const asn_TYPE_member_t *elm, const void *ptr, size_t size) {
size_t consumed_myself = 0;
asn_type_selector_result_t selected;
void *memb_ptr; /* Pointer to the member */
void **memb_ptr2; /* Pointer to that pointer */
void *inner_value;
asn_dec_rval_t rv;
if(!(elm->flags & ATF_OPEN_TYPE)) {
ASN__DECODE_FAILED;
}
if(!elm->type_selector) {
ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s",
td->name, elm->name, elm->type->name);
ASN__DECODE_FAILED;
}
selected = elm->type_selector(td, sptr);
if(!selected.presence_index) {
ASN__DECODE_FAILED;
}
/* Fetch the pointer to this member */
if(elm->flags & ATF_POINTER) {
memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
} else {
memb_ptr = (char *)sptr + elm->memb_offset;
memb_ptr2 = &memb_ptr;
}
if(*memb_ptr2 != NULL) {
/* Make sure we reset the structure first before encoding */
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0) != 0) {
ASN__DECODE_FAILED;
}
}
inner_value =
(char *)*memb_ptr2
+ elm->type->elements[selected.presence_index - 1].memb_offset;
ASN_DEBUG("presence %d\n", selected.presence_index);
rv = selected.type_descriptor->op->ber_decoder(
opt_codec_ctx, selected.type_descriptor, &inner_value, ptr, size,
elm->tag_mode);
ADVANCE(rv.consumed);
rv.consumed = 0;
switch(rv.code) {
case RC_OK:
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
selected.presence_index)
== 0) {
rv.code = RC_OK;
rv.consumed = consumed_myself;
return rv;
} else {
/* Oh, now a full-blown failure failure */
}
/* Fall through */
case RC_FAIL:
rv.consumed = consumed_myself;
/* Fall through */
case RC_WMORE:
break;
}
if(*memb_ptr2) {
const asn_CHOICE_specifics_t *specs =
selected.type_descriptor->specifics;
if(elm->flags & ATF_POINTER) {
ASN_STRUCT_FREE(*selected.type_descriptor, inner_value);
*memb_ptr2 = NULL;
} else {
ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor,
inner_value);
memset(*memb_ptr2, 0, specs->struct_size);
}
}
return rv;
}
asn_dec_rval_t
OPEN_TYPE_xer_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void *sptr,
const asn_TYPE_member_t *elm, const void *ptr, size_t size) {
size_t consumed_myself = 0;
asn_type_selector_result_t selected;
void *memb_ptr; /* Pointer to the member */
void **memb_ptr2; /* Pointer to that pointer */
void *inner_value;
asn_dec_rval_t rv;
int xer_context = 0;
ssize_t ch_size;
pxer_chunk_type_e ch_type;
if(!(elm->flags & ATF_OPEN_TYPE)) {
ASN__DECODE_FAILED;
}
if(!elm->type_selector) {
ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s",
td->name, elm->name, elm->type->name);
ASN__DECODE_FAILED;
}
selected = elm->type_selector(td, sptr);
if(!selected.presence_index) {
ASN__DECODE_FAILED;
}
/* Fetch the pointer to this member */
assert(elm->flags == ATF_OPEN_TYPE);
if(elm->flags & ATF_POINTER) {
memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
} else {
memb_ptr = (char *)sptr + elm->memb_offset;
memb_ptr2 = &memb_ptr;
}
if(*memb_ptr2 != NULL) {
/* Make sure we reset the structure first before encoding */
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0)
!= 0) {
ASN__DECODE_FAILED;
}
}
/*
* Confirm wrapper.
*/
for(;;) {
ch_size = xer_next_token(&xer_context, ptr, size, &ch_type);
if(ch_size < 0) {
ASN__DECODE_FAILED;
} else {
switch(ch_type) {
case PXER_WMORE:
ASN__DECODE_STARVED;
case PXER_COMMENT:
case PXER_TEXT:
ADVANCE(ch_size);
continue;
case PXER_TAG:
break;
}
break;
}
}
/*
* Wrapper value confirmed.
*/
switch(xer_check_tag(ptr, ch_size, elm->name)) {
case XCT_OPENING:
ADVANCE(ch_size);
break;
case XCT_BROKEN:
default:
ASN__DECODE_FAILED;
}
inner_value =
(char *)*memb_ptr2
+ elm->type->elements[selected.presence_index - 1].memb_offset;
rv = selected.type_descriptor->op->xer_decoder(
opt_codec_ctx, selected.type_descriptor, &inner_value, NULL, ptr, size);
ADVANCE(rv.consumed);
rv.consumed = 0;
switch(rv.code) {
case RC_OK:
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
selected.presence_index)
== 0) {
break;
} else {
rv.code = RC_FAIL;
}
/* Fall through */
case RC_FAIL:
/* Point to a best position where failure occurred */
rv.consumed = consumed_myself;
/* Fall through */
case RC_WMORE:
/* Wrt. rv.consumed==0:
* In case a genuine RC_WMORE, the whole Open Type decoding
* will have to be restarted.
*/
if(*memb_ptr2) {
const asn_CHOICE_specifics_t *specs =
selected.type_descriptor->specifics;
if(elm->flags & ATF_POINTER) {
ASN_STRUCT_FREE(*selected.type_descriptor, inner_value);
*memb_ptr2 = NULL;
} else {
ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor,
inner_value);
memset(*memb_ptr2, 0, specs->struct_size);
}
}
return rv;
}
/*
* Finalize wrapper.
*/
for(;;) {
ch_size = xer_next_token(&xer_context, ptr, size, &ch_type);
if(ch_size < 0) {
ASN__DECODE_FAILED;
} else {
switch(ch_type) {
case PXER_WMORE:
ASN__DECODE_STARVED;
case PXER_COMMENT:
case PXER_TEXT:
ADVANCE(ch_size);
continue;
case PXER_TAG:
break;
}
break;
}
}
/*
* Wrapper value confirmed.
*/
switch(xer_check_tag(ptr, ch_size, elm->name)) {
case XCT_CLOSING:
ADVANCE(ch_size);
break;
case XCT_BROKEN:
default:
ASN__DECODE_FAILED;
}
rv.consumed += consumed_myself;
return rv;
}
#ifndef ASN_DISABLE_PER_SUPPORT
asn_dec_rval_t
OPEN_TYPE_uper_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void *sptr,
const asn_TYPE_member_t *elm, asn_per_data_t *pd) {
asn_type_selector_result_t selected;
void *memb_ptr; /* Pointer to the member */
void **memb_ptr2; /* Pointer to that pointer */
void *inner_value;
asn_dec_rval_t rv;
if(!(elm->flags & ATF_OPEN_TYPE)) {
ASN__DECODE_FAILED;
}
if(!elm->type_selector) {
ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s",
td->name, elm->name, elm->type->name);
ASN__DECODE_FAILED;
}
selected = elm->type_selector(td, sptr);
if(!selected.presence_index) {
ASN__DECODE_FAILED;
}
/* Fetch the pointer to this member */
assert(elm->flags == ATF_OPEN_TYPE);
if(elm->flags & ATF_POINTER) {
memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
} else {
memb_ptr = (char *)sptr + elm->memb_offset;
memb_ptr2 = &memb_ptr;
}
if(*memb_ptr2 != NULL) {
/* Make sure we reset the structure first before encoding */
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0)
!= 0) {
ASN__DECODE_FAILED;
}
}
inner_value =
(char *)*memb_ptr2
+ elm->type->elements[selected.presence_index - 1].memb_offset;
rv = uper_open_type_get(opt_codec_ctx, selected.type_descriptor, NULL,
&inner_value, pd);
switch(rv.code) {
case RC_OK:
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
selected.presence_index)
== 0) {
break;
} else {
rv.code = RC_FAIL;
}
/* Fall through */
case RC_WMORE:
case RC_FAIL:
if(*memb_ptr2) {
const asn_CHOICE_specifics_t *specs =
selected.type_descriptor->specifics;
if(elm->flags & ATF_POINTER) {
ASN_STRUCT_FREE(*selected.type_descriptor, inner_value);
*memb_ptr2 = NULL;
} else {
ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor,
inner_value);
memset(*memb_ptr2, 0, specs->struct_size);
}
}
}
return rv;
}
asn_enc_rval_t
OPEN_TYPE_encode_uper(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, asn_per_outp_t *po) {
const void *memb_ptr; /* Pointer to the member */
asn_TYPE_member_t *elm; /* CHOICE's element */
asn_enc_rval_t er;
unsigned present;
(void)constraints;
present = CHOICE_variant_get_presence(td, sptr);
if(present == 0 || present > td->elements_count) {
ASN__ENCODE_FAILED;
} else {
present--;
}
ASN_DEBUG("Encoding %s OPEN TYPE element %d", td->name, present);
elm = &td->elements[present];
if(elm->flags & ATF_POINTER) {
/* Member is a pointer to another structure */
memb_ptr =
*(const void *const *)((const char *)sptr + elm->memb_offset);
if(!memb_ptr) ASN__ENCODE_FAILED;
} else {
memb_ptr = (const char *)sptr + elm->memb_offset;
}
if(uper_open_type_put(elm->type, NULL, memb_ptr, po) < 0) {
ASN__ENCODE_FAILED;
}
er.encoded = 0;
ASN__ENCODED_OK(er);
}
#endif /* ASN_DISABLE_PER_SUPPORT */
+63
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@@ -0,0 +1,63 @@
/*-
* Copyright (c) 2017-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_OPEN_TYPE_H
#define ASN_OPEN_TYPE_H
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
#define OPEN_TYPE_free CHOICE_free
#define OPEN_TYPE_print CHOICE_print
#define OPEN_TYPE_compare CHOICE_compare
#define OPEN_TYPE_constraint CHOICE_constraint
#define OPEN_TYPE_decode_ber NULL
#define OPEN_TYPE_encode_der CHOICE_encode_der
#define OPEN_TYPE_decode_xer NULL
#define OPEN_TYPE_encode_xer CHOICE_encode_xer
#define OPEN_TYPE_decode_uper NULL
extern asn_TYPE_operation_t asn_OP_OPEN_TYPE;
/*
* Decode an Open Type which is potentially constraiend
* by the other members of the parent structure.
*/
asn_dec_rval_t OPEN_TYPE_ber_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *parent_type,
void *parent_structure,
const asn_TYPE_member_t *element,
const void *ptr, size_t size);
asn_dec_rval_t OPEN_TYPE_xer_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *parent_type,
void *parent_structure,
const asn_TYPE_member_t *element,
const void *ptr, size_t size);
asn_dec_rval_t OPEN_TYPE_oer_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *parent_type,
void *parent_structure,
asn_TYPE_member_t *element, const void *ptr,
size_t size);
asn_dec_rval_t OPEN_TYPE_uper_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *parent_type,
void *parent_structure,
const asn_TYPE_member_t *element,
asn_per_data_t *pd);
asn_enc_rval_t OPEN_TYPE_encode_uper(
const asn_TYPE_descriptor_t *type_descriptor,
const asn_per_constraints_t *constraints, const void *struct_ptr,
asn_per_outp_t *per_output);
#ifdef __cplusplus
}
#endif
#endif /* ASN_OPEN_TYPE_H */
+92
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@@ -0,0 +1,92 @@
/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <OPEN_TYPE.h>
#include <constr_CHOICE.h>
#include <errno.h>
asn_dec_rval_t
OPEN_TYPE_oer_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void *sptr,
asn_TYPE_member_t *elm, const void *ptr, size_t size) {
asn_type_selector_result_t selected;
void *memb_ptr; /* Pointer to the member */
void **memb_ptr2; /* Pointer to that pointer */
void *inner_value;
asn_dec_rval_t rv;
size_t ot_ret;
if(!(elm->flags & ATF_OPEN_TYPE)) {
ASN__DECODE_FAILED;
}
if(!elm->type_selector) {
ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s",
td->name, elm->name, elm->type->name);
ASN__DECODE_FAILED;
}
selected = elm->type_selector(td, sptr);
if(!selected.presence_index) {
ASN__DECODE_FAILED;
}
/* Fetch the pointer to this member */
if(elm->flags & ATF_POINTER) {
memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
} else {
memb_ptr = (char *)sptr + elm->memb_offset;
memb_ptr2 = &memb_ptr;
}
if(*memb_ptr2 != NULL) {
/* Make sure we reset the structure first before encoding */
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0) != 0) {
ASN__DECODE_FAILED;
}
}
inner_value =
(char *)*memb_ptr2
+ elm->type->elements[selected.presence_index - 1].memb_offset;
ot_ret = oer_open_type_get(opt_codec_ctx, selected.type_descriptor, NULL,
&inner_value, ptr, size);
switch(ot_ret) {
default:
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
selected.presence_index)
== 0) {
rv.code = RC_OK;
rv.consumed = ot_ret;
return rv;
} else {
/* Oh, now a full-blown failure failure */
}
/* Fall through */
case -1:
rv.code = RC_FAIL;
rv.consumed = ot_ret;
break;
case 0:
rv.code = RC_WMORE;
rv.consumed = 0;
break;
}
if(*memb_ptr2) {
const asn_CHOICE_specifics_t *specs =
selected.type_descriptor->specifics;
if(elm->flags & ATF_POINTER) {
ASN_STRUCT_FREE(*selected.type_descriptor, inner_value);
*memb_ptr2 = NULL;
} else {
ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor,
inner_value);
memset(*memb_ptr2, 0, specs->struct_size);
}
}
return rv;
}
+44
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@@ -0,0 +1,44 @@
/*
* Generated by asn1c-0.9.29 (http://lionet.info/asn1c)
* From ASN.1 module "ReceiptModule"
* found in "ASN1PayloadStructure"
* `asn1c -fnative-types`
*/
#include "Payload.h"
static asn_TYPE_member_t asn_MBR_Payload_1[] = {
{ ATF_POINTER, 0, 0,
(ASN_TAG_CLASS_UNIVERSAL | (16 << 2)),
0,
&asn_DEF_ReceiptAttribute,
0,
{ 0, 0, 0 },
0, 0, /* No default value */
""
},
};
static const ber_tlv_tag_t asn_DEF_Payload_tags_1[] = {
(ASN_TAG_CLASS_UNIVERSAL | (17 << 2))
};
static asn_SET_OF_specifics_t asn_SPC_Payload_specs_1 = {
sizeof(struct Payload),
offsetof(struct Payload, _asn_ctx),
0, /* XER encoding is XMLDelimitedItemList */
};
asn_TYPE_descriptor_t asn_DEF_Payload = {
"Payload",
"Payload",
&asn_OP_SET_OF,
asn_DEF_Payload_tags_1,
sizeof(asn_DEF_Payload_tags_1)
/sizeof(asn_DEF_Payload_tags_1[0]), /* 1 */
asn_DEF_Payload_tags_1, /* Same as above */
sizeof(asn_DEF_Payload_tags_1)
/sizeof(asn_DEF_Payload_tags_1[0]), /* 1 */
{ 0, 0, SET_OF_constraint },
asn_MBR_Payload_1,
1, /* Single element */
&asn_SPC_Payload_specs_1 /* Additional specs */
};
+44
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@@ -0,0 +1,44 @@
/*
* Generated by asn1c-0.9.29 (http://lionet.info/asn1c)
* From ASN.1 module "ReceiptModule"
* found in "ASN1PayloadStructure"
* `asn1c -fnative-types`
*/
#ifndef _Payload_H_
#define _Payload_H_
#include <asn_application.h>
/* Including external dependencies */
#include <asn_SET_OF.h>
#include <constr_SET_OF.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Forward declarations */
struct ReceiptAttribute;
/* Payload */
typedef struct Payload {
A_SET_OF(struct ReceiptAttribute) list;
/* Context for parsing across buffer boundaries */
asn_struct_ctx_t _asn_ctx;
} Payload_t;
/* Implementation */
extern asn_TYPE_descriptor_t asn_DEF_Payload;
#ifdef __cplusplus
}
#endif
/* Referred external types */
#include "ReceiptAttribute.h"
#endif /* _Payload_H_ */
#include <asn_internal.h>
+70
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@@ -0,0 +1,70 @@
/*
* Generated by asn1c-0.9.29 (http://lionet.info/asn1c)
* From ASN.1 module "ReceiptModule"
* found in "ASN1PayloadStructure"
* `asn1c -fnative-types`
*/
#include "ReceiptAttribute.h"
asn_TYPE_member_t asn_MBR_ReceiptAttribute_1[] = {
{ ATF_NOFLAGS, 0, offsetof(struct ReceiptAttribute, type),
(ASN_TAG_CLASS_UNIVERSAL | (2 << 2)),
0,
&asn_DEF_NativeInteger,
0,
{ 0, 0, 0 },
0, 0, /* No default value */
"type"
},
{ ATF_NOFLAGS, 0, offsetof(struct ReceiptAttribute, version),
(ASN_TAG_CLASS_UNIVERSAL | (2 << 2)),
0,
&asn_DEF_NativeInteger,
0,
{ 0, 0, 0 },
0, 0, /* No default value */
"version"
},
{ ATF_NOFLAGS, 0, offsetof(struct ReceiptAttribute, value),
(ASN_TAG_CLASS_UNIVERSAL | (4 << 2)),
0,
&asn_DEF_OCTET_STRING,
0,
{ 0, 0, 0 },
0, 0, /* No default value */
"value"
},
};
static const ber_tlv_tag_t asn_DEF_ReceiptAttribute_tags_1[] = {
(ASN_TAG_CLASS_UNIVERSAL | (16 << 2))
};
static const asn_TYPE_tag2member_t asn_MAP_ReceiptAttribute_tag2el_1[] = {
{ (ASN_TAG_CLASS_UNIVERSAL | (2 << 2)), 0, 0, 1 }, /* type */
{ (ASN_TAG_CLASS_UNIVERSAL | (2 << 2)), 1, -1, 0 }, /* version */
{ (ASN_TAG_CLASS_UNIVERSAL | (4 << 2)), 2, 0, 0 } /* value */
};
asn_SEQUENCE_specifics_t asn_SPC_ReceiptAttribute_specs_1 = {
sizeof(struct ReceiptAttribute),
offsetof(struct ReceiptAttribute, _asn_ctx),
asn_MAP_ReceiptAttribute_tag2el_1,
3, /* Count of tags in the map */
0, 0, 0, /* Optional elements (not needed) */
-1, /* First extension addition */
};
asn_TYPE_descriptor_t asn_DEF_ReceiptAttribute = {
"ReceiptAttribute",
"ReceiptAttribute",
&asn_OP_SEQUENCE,
asn_DEF_ReceiptAttribute_tags_1,
sizeof(asn_DEF_ReceiptAttribute_tags_1)
/sizeof(asn_DEF_ReceiptAttribute_tags_1[0]), /* 1 */
asn_DEF_ReceiptAttribute_tags_1, /* Same as above */
sizeof(asn_DEF_ReceiptAttribute_tags_1)
/sizeof(asn_DEF_ReceiptAttribute_tags_1[0]), /* 1 */
{ 0, 0, SEQUENCE_constraint },
asn_MBR_ReceiptAttribute_1,
3, /* Elements count */
&asn_SPC_ReceiptAttribute_specs_1 /* Additional specs */
};
+43
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@@ -0,0 +1,43 @@
/*
* Generated by asn1c-0.9.29 (http://lionet.info/asn1c)
* From ASN.1 module "ReceiptModule"
* found in "ASN1PayloadStructure"
* `asn1c -fnative-types`
*/
#ifndef _ReceiptAttribute_H_
#define _ReceiptAttribute_H_
#include <asn_application.h>
/* Including external dependencies */
#include <NativeInteger.h>
#include <OCTET_STRING.h>
#include <constr_SEQUENCE.h>
#ifdef __cplusplus
extern "C" {
#endif
/* ReceiptAttribute */
typedef struct ReceiptAttribute {
long type;
long version;
OCTET_STRING_t value;
/* Context for parsing across buffer boundaries */
asn_struct_ctx_t _asn_ctx;
} ReceiptAttribute_t;
/* Implementation */
extern asn_TYPE_descriptor_t asn_DEF_ReceiptAttribute;
extern asn_SEQUENCE_specifics_t asn_SPC_ReceiptAttribute_specs_1;
extern asn_TYPE_member_t asn_MBR_ReceiptAttribute_1[3];
#ifdef __cplusplus
}
#endif
#endif /* _ReceiptAttribute_H_ */
#include <asn_internal.h>
+88
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@@ -0,0 +1,88 @@
/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <asn_SET_OF.h>
#include <errno.h>
/*
* Add another element into the set.
*/
int
asn_set_add(void *asn_set_of_x, void *ptr) {
asn_anonymous_set_ *as = _A_SET_FROM_VOID(asn_set_of_x);
if(as == 0 || ptr == 0) {
errno = EINVAL; /* Invalid arguments */
return -1;
}
/*
* Make sure there's enough space to insert an element.
*/
if(as->count == as->size) {
int _newsize = as->size ? (as->size << 1) : 4;
void *_new_arr;
_new_arr = REALLOC(as->array, _newsize * sizeof(as->array[0]));
if(_new_arr) {
as->array = (void **)_new_arr;
as->size = _newsize;
} else {
/* ENOMEM */
return -1;
}
}
as->array[as->count++] = ptr;
return 0;
}
void
asn_set_del(void *asn_set_of_x, int number, int _do_free) {
asn_anonymous_set_ *as = _A_SET_FROM_VOID(asn_set_of_x);
if(as) {
void *ptr;
if(number < 0 || number >= as->count)
return;
if(_do_free && as->free) {
ptr = as->array[number];
} else {
ptr = 0;
}
as->array[number] = as->array[--as->count];
/*
* Invoke the third-party function only when the state
* of the parent structure is consistent.
*/
if(ptr) as->free(ptr);
}
}
/*
* Free the contents of the set, do not free the set itself.
*/
void
asn_set_empty(void *asn_set_of_x) {
asn_anonymous_set_ *as = _A_SET_FROM_VOID(asn_set_of_x);
if(as) {
if(as->array) {
if(as->free) {
while(as->count--)
as->free(as->array[as->count]);
}
FREEMEM(as->array);
as->array = 0;
}
as->count = 0;
as->size = 0;
}
}
+72
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@@ -0,0 +1,72 @@
/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_SET_OF_H
#define ASN_SET_OF_H
#ifdef __cplusplus
#define A_SET_OF(type) \
struct { \
type **array; \
int count; /* Meaningful size */ \
int size; /* Allocated size */ \
void (*free)(decltype(*array)); \
}
#else /* C */
#define A_SET_OF(type) \
struct { \
type **array; \
int count; /* Meaningful size */ \
int size; /* Allocated size */ \
void (*free)(type *); \
}
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define ASN_SET_ADD(headptr, ptr) \
asn_set_add((headptr), (ptr))
/*******************************************
* Implementation of the SET OF structure.
*/
/*
* Add another structure into the set by its pointer.
* RETURN VALUES:
* 0 for success and -1/errno for failure.
*/
int asn_set_add(void *asn_set_of_x, void *ptr);
/*
* Delete the element from the set by its number (base 0).
* This is a constant-time operation. The order of elements before the
* deleted ones is guaranteed, the order of elements after the deleted
* one is NOT guaranteed.
* If _do_free is given AND the (*free) is initialized, the element
* will be freed using the custom (*free) function as well.
*/
void asn_set_del(void *asn_set_of_x, int number, int _do_free);
/*
* Empty the contents of the set. Will free the elements, if (*free) is given.
* Will NOT free the set itself.
*/
void asn_set_empty(void *asn_set_of_x);
/*
* Cope with different conversions requirements to/from void in C and C++.
* This is mostly useful for support library.
*/
typedef A_SET_OF(void) asn_anonymous_set_;
#define _A_SET_FROM_VOID(ptr) ((asn_anonymous_set_ *)(ptr))
#define _A_CSET_FROM_VOID(ptr) ((const asn_anonymous_set_ *)(ptr))
#ifdef __cplusplus
}
#endif
#endif /* ASN_SET_OF_H */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <asn_application.h>
#include <errno.h>
static asn_enc_rval_t asn_encode_internal(const asn_codec_ctx_t *opt_codec_ctx,
enum asn_transfer_syntax syntax,
const asn_TYPE_descriptor_t *td,
const void *sptr,
asn_app_consume_bytes_f *callback,
void *callback_key);
struct callback_count_bytes_key {
asn_app_consume_bytes_f *callback;
void *callback_key;
size_t computed_size;
};
/*
* Encoder which just counts bytes that come through it.
*/
static int
callback_count_bytes_cb(const void *data, size_t size, void *keyp) {
struct callback_count_bytes_key *key = keyp;
int ret;
ret = key->callback(data, size, key->callback_key);
if(ret >= 0) {
key->computed_size += size;
}
return ret;
}
struct overrun_encoder_key {
void *buffer;
size_t buffer_size;
size_t computed_size;
};
struct dynamic_encoder_key {
void *buffer;
size_t buffer_size;
size_t computed_size;
};
struct callback_failure_catch_key {
asn_app_consume_bytes_f *callback;
void *callback_key;
int callback_failed;
};
/*
* Encoder which doesn't stop counting bytes
* even if it reaches the end of the buffer.
*/
static int
overrun_encoder_cb(const void *data, size_t size, void *keyp) {
struct overrun_encoder_key *key = keyp;
if(key->computed_size + size > key->buffer_size) {
/*
* Avoid accident on the next call:
* stop adding bytes to the buffer.
*/
key->buffer_size = 0;
} else {
memcpy((char *)key->buffer + key->computed_size, data, size);
}
key->computed_size += size;
return 0;
}
/*
* Encoder which dynamically allocates output, and continues
* to count even if allocation failed.
*/
static int
dynamic_encoder_cb(const void *data, size_t size, void *keyp) {
struct dynamic_encoder_key *key = keyp;
if(key->buffer) {
if(key->computed_size + size >= key->buffer_size) {
void *p;
size_t new_size = key->buffer_size;
do {
new_size *= 2;
} while(new_size <= key->computed_size + size);
p = REALLOC(key->buffer, new_size);
if(p) {
key->buffer = p;
key->buffer_size = new_size;
} else {
FREEMEM(key->buffer);
key->buffer = 0;
key->buffer_size = 0;
key->computed_size += size;
return 0;
}
}
memcpy((char *)key->buffer + key->computed_size, data, size);
}
key->computed_size += size;
return 0;
}
/*
* Encoder which help convert the application level encoder failure into EIO.
*/
static int
callback_failure_catch_cb(const void *data, size_t size, void *keyp) {
struct callback_failure_catch_key *key = keyp;
int ret;
ret = key->callback(data, size, key->callback_key);
if(ret < 0) {
key->callback_failed = 1;
}
return ret;
}
asn_enc_rval_t
asn_encode(const asn_codec_ctx_t *opt_codec_ctx,
enum asn_transfer_syntax syntax, const asn_TYPE_descriptor_t *td,
const void *sptr, asn_app_consume_bytes_f *callback, void *callback_key) {
struct callback_failure_catch_key cb_key;
asn_enc_rval_t er;
if(!callback) {
errno = EINVAL;
ASN__ENCODE_FAILED;
}
cb_key.callback = callback;
cb_key.callback_key = callback_key;
cb_key.callback_failed = 0;
er = asn_encode_internal(opt_codec_ctx, syntax, td, sptr,
callback_failure_catch_cb, &cb_key);
if(cb_key.callback_failed) {
assert(er.encoded == -1);
assert(errno == EBADF);
errno = EIO;
}
return er;
}
asn_enc_rval_t
asn_encode_to_buffer(const asn_codec_ctx_t *opt_codec_ctx,
enum asn_transfer_syntax syntax,
const asn_TYPE_descriptor_t *td, const void *sptr,
void *buffer, size_t buffer_size) {
struct overrun_encoder_key buf_key;
asn_enc_rval_t er;
if(buffer_size > 0 && !buffer) {
errno = EINVAL;
ASN__ENCODE_FAILED;
}
buf_key.buffer = buffer;
buf_key.buffer_size = buffer_size;
buf_key.computed_size = 0;
er = asn_encode_internal(opt_codec_ctx, syntax, td, sptr,
overrun_encoder_cb, &buf_key);
if(er.encoded >= 0 && (size_t)er.encoded != buf_key.computed_size) {
ASN_DEBUG("asn_encode() returned %" ASN_PRI_SSIZE
" yet produced %" ASN_PRI_SIZE " bytes",
er.encoded, buf_key.computed_size);
assert(er.encoded < 0 || (size_t)er.encoded == buf_key.computed_size);
}
return er;
}
asn_encode_to_new_buffer_result_t
asn_encode_to_new_buffer(const asn_codec_ctx_t *opt_codec_ctx,
enum asn_transfer_syntax syntax,
const asn_TYPE_descriptor_t *td, const void *sptr) {
struct dynamic_encoder_key buf_key;
asn_encode_to_new_buffer_result_t res;
buf_key.buffer_size = 16;
buf_key.buffer = MALLOC(buf_key.buffer_size);
buf_key.computed_size = 0;
res.result = asn_encode_internal(opt_codec_ctx, syntax, td, sptr,
dynamic_encoder_cb, &buf_key);
if(res.result.encoded >= 0
&& (size_t)res.result.encoded != buf_key.computed_size) {
ASN_DEBUG("asn_encode() returned %" ASN_PRI_SSIZE
" yet produced %" ASN_PRI_SIZE " bytes",
res.result.encoded, buf_key.computed_size);
assert(res.result.encoded < 0
|| (size_t)res.result.encoded == buf_key.computed_size);
}
res.buffer = buf_key.buffer;
/* 0-terminate just in case. */
if(res.buffer) {
assert(buf_key.computed_size < buf_key.buffer_size);
((char *)res.buffer)[buf_key.computed_size] = '\0';
}
return res;
}
static asn_enc_rval_t
asn_encode_internal(const asn_codec_ctx_t *opt_codec_ctx,
enum asn_transfer_syntax syntax,
const asn_TYPE_descriptor_t *td, const void *sptr,
asn_app_consume_bytes_f *callback, void *callback_key) {
asn_enc_rval_t er;
enum xer_encoder_flags_e xer_flags = XER_F_CANONICAL;
(void)opt_codec_ctx; /* Parameters are not checked on encode yet. */
if(!td || !sptr) {
errno = EINVAL;
ASN__ENCODE_FAILED;
}
switch(syntax) {
case ATS_NONSTANDARD_PLAINTEXT:
if(td->op->print_struct) {
struct callback_count_bytes_key cb_key;
cb_key.callback = callback;
cb_key.callback_key = callback_key;
cb_key.computed_size = 0;
if(td->op->print_struct(td, sptr, 1, callback_count_bytes_cb,
&cb_key)
< 0
|| callback_count_bytes_cb("\n", 1, &cb_key) < 0) {
errno = EBADF; /* Structure has incorrect form. */
er.encoded = -1;
er.failed_type = td;
er.structure_ptr = sptr;
} else {
er.encoded = cb_key.computed_size;
er.failed_type = 0;
er.structure_ptr = 0;
}
} else {
errno = ENOENT; /* Transfer syntax is not defined for this type. */
ASN__ENCODE_FAILED;
}
break;
case ATS_RANDOM:
errno = ENOENT; /* Randomization doesn't make sense on output. */
ASN__ENCODE_FAILED;
case ATS_BER:
/* BER is a superset of DER. */
/* Fall through. */
case ATS_DER:
if(td->op->der_encoder) {
er = der_encode(td, sptr, callback, callback_key);
if(er.encoded == -1) {
if(er.failed_type && er.failed_type->op->der_encoder) {
errno = EBADF; /* Structure has incorrect form. */
} else {
errno = ENOENT; /* DER is not defined for this type. */
}
}
} else {
errno = ENOENT; /* Transfer syntax is not defined for this type. */
ASN__ENCODE_FAILED;
}
break;
case ATS_CER:
errno = ENOENT; /* Transfer syntax is not defined for any type. */
ASN__ENCODE_FAILED;
#ifdef ASN_DISABLE_OER_SUPPORT
case ATS_BASIC_OER:
case ATS_CANONICAL_OER:
errno = ENOENT; /* PER is not defined. */
ASN__ENCODE_FAILED;
break;
#else /* ASN_DISABLE_OER_SUPPORT */
case ATS_BASIC_OER:
/* CANONICAL-OER is a superset of BASIC-OER. */
/* Fall through. */
case ATS_CANONICAL_OER:
if(td->op->oer_encoder) {
er = oer_encode(td, sptr, callback, callback_key);
if(er.encoded == -1) {
if(er.failed_type && er.failed_type->op->oer_encoder) {
errno = EBADF; /* Structure has incorrect form. */
} else {
errno = ENOENT; /* OER is not defined for this type. */
}
}
} else {
errno = ENOENT; /* Transfer syntax is not defined for this type. */
ASN__ENCODE_FAILED;
}
break;
#endif /* ASN_DISABLE_OER_SUPPORT */
#ifdef ASN_DISABLE_PER_SUPPORT
case ATS_UNALIGNED_BASIC_PER:
case ATS_UNALIGNED_CANONICAL_PER:
errno = ENOENT; /* PER is not defined. */
ASN__ENCODE_FAILED;
break;
#else /* ASN_DISABLE_PER_SUPPORT */
case ATS_UNALIGNED_BASIC_PER:
/* CANONICAL-UPER is a superset of BASIC-UPER. */
/* Fall through. */
case ATS_UNALIGNED_CANONICAL_PER:
if(td->op->uper_encoder) {
er = uper_encode(td, 0, sptr, callback, callback_key);
if(er.encoded == -1) {
if(er.failed_type && er.failed_type->op->uper_encoder) {
errno = EBADF; /* Structure has incorrect form. */
} else {
errno = ENOENT; /* UPER is not defined for this type. */
}
} else {
ASN_DEBUG("Complete encoded in %ld bits", (long)er.encoded);
if(er.encoded == 0) {
/* Enforce "Complete Encoding" of X.691 #11.1 */
if(callback("\0", 1, callback_key) < 0) {
errno = EBADF;
ASN__ENCODE_FAILED;
}
er.encoded = 8; /* Exactly 8 zero bits is added. */
}
/* Convert bits into bytes */
er.encoded = (er.encoded + 7) >> 3;
}
} else {
errno = ENOENT; /* Transfer syntax is not defined for this type. */
ASN__ENCODE_FAILED;
}
break;
#endif /* ASN_DISABLE_PER_SUPPORT */
case ATS_BASIC_XER:
/* CANONICAL-XER is a superset of BASIC-XER. */
xer_flags &= ~XER_F_CANONICAL;
xer_flags |= XER_F_BASIC;
/* Fall through. */
case ATS_CANONICAL_XER:
if(td->op->xer_encoder) {
er = xer_encode(td, sptr, xer_flags, callback, callback_key);
if(er.encoded == -1) {
if(er.failed_type && er.failed_type->op->xer_encoder) {
errno = EBADF; /* Structure has incorrect form. */
} else {
errno = ENOENT; /* XER is not defined for this type. */
}
}
} else {
errno = ENOENT; /* Transfer syntax is not defined for this type. */
ASN__ENCODE_FAILED;
}
break;
default:
errno = ENOENT;
ASN__ENCODE_FAILED;
}
return er;
}
asn_dec_rval_t
asn_decode(const asn_codec_ctx_t *opt_codec_ctx,
enum asn_transfer_syntax syntax, const asn_TYPE_descriptor_t *td,
void **sptr, const void *buffer, size_t size) {
if(!td || !td->op || !sptr || (size && !buffer)) {
ASN__DECODE_FAILED;
}
switch(syntax) {
case ATS_CER:
case ATS_NONSTANDARD_PLAINTEXT:
default:
errno = ENOENT;
ASN__DECODE_FAILED;
case ATS_RANDOM:
if(!td->op->random_fill) {
ASN__DECODE_FAILED;
} else {
if(asn_random_fill(td, sptr, 16000) == 0) {
asn_dec_rval_t ret = {RC_OK, 0};
return ret;
} else {
ASN__DECODE_FAILED;
}
}
break;
case ATS_DER:
case ATS_BER:
return ber_decode(opt_codec_ctx, td, sptr, buffer, size);
case ATS_BASIC_OER:
case ATS_CANONICAL_OER:
#ifdef ASN_DISABLE_OER_SUPPORT
errno = ENOENT;
ASN__DECODE_FAILED;
#else
return oer_decode(opt_codec_ctx, td, sptr, buffer, size);
#endif
case ATS_UNALIGNED_BASIC_PER:
case ATS_UNALIGNED_CANONICAL_PER:
#ifdef ASN_DISABLE_PER_SUPPORT
errno = ENOENT;
ASN__DECODE_FAILED;
#else
return uper_decode_complete(opt_codec_ctx, td, sptr, buffer, size);
#endif
case ATS_BASIC_XER:
case ATS_CANONICAL_XER:
return xer_decode(opt_codec_ctx, td, sptr, buffer, size);
}
}
+169
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/*-
* Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
/*
* Application-level ASN.1 callbacks.
*/
#ifndef ASN_APPLICATION_H
#define ASN_APPLICATION_H
#include "asn_system.h" /* for platform-dependent types */
#include "asn_codecs.h" /* for ASN.1 codecs specifics */
#ifdef __cplusplus
extern "C" {
#endif
/*
* A selection of ASN.1 Transfer Syntaxes to use with generalized
* encoders and decoders declared further in this .h file.
*/
enum asn_transfer_syntax {
/* Avoid appearance of a default transfer syntax. */
ATS_INVALID = 0,
/* Plaintext output (not conforming to any standard), for debugging. */
ATS_NONSTANDARD_PLAINTEXT,
/* Returns a randomly generatede structure. */
ATS_RANDOM,
/*
* X.690:
* BER: Basic Encoding Rules.
* DER: Distinguished Encoding Rules.
* CER: Canonical Encoding Rules.
* DER and CER are more strict variants of BER.
*/
ATS_BER,
ATS_DER,
ATS_CER, /* Only decoding is supported */
/*
* X.696:
* OER: Octet Encoding Rules.
* CANONICAL-OER is a more strict variant of BASIC-OER.
*/
ATS_BASIC_OER,
ATS_CANONICAL_OER,
/*
* X.691:
* PER: Packed Encoding Rules.
* CANONICAL-PER is a more strict variant of BASIC-PER.
* NOTE: Produces or consumes a complete encoding (X.691 (08/2015) #11.1).
*/
ATS_UNALIGNED_BASIC_PER,
ATS_UNALIGNED_CANONICAL_PER,
/*
* X.693:
* XER: XML Encoding Rules.
* CANONICAL-XER is a more strict variant of BASIC-XER.
*/
ATS_BASIC_XER,
ATS_CANONICAL_XER
};
/*
* A generic encoder for any supported transfer syntax.
* RETURN VALUES:
* The (.encoded) field of the return value is REDEFINED to mean the following:
* >=0: The computed size of the encoded data. Can exceed the (buffer_size).
* -1: Error encoding the structure. See the error code in (errno):
* EINVAL: Incorrect parameters to the function, such as NULLs.
* ENOENT: Encoding transfer syntax is not defined (for this type).
* EBADF: The structure has invalid form or content constraint failed.
* The (.failed_type) and (.structure_ptr) MIGHT be set to the appropriate
* values at the place of failure, if at all possible.
* WARNING: The (.encoded) field of the return value can exceed the buffer_size.
* This is similar to snprintf(3) contract which might return values
* greater than the buffer size.
*/
asn_enc_rval_t asn_encode_to_buffer(
const asn_codec_ctx_t *opt_codec_parameters, /* See asn_codecs.h */
enum asn_transfer_syntax,
const struct asn_TYPE_descriptor_s *type_to_encode,
const void *structure_to_encode, void *buffer, size_t buffer_size);
/*
* A variant of asn_encode_to_buffer() with automatically allocated buffer.
* RETURN VALUES:
* On success, returns a newly allocated (.buffer) containing the whole message.
* The message size is returned in (.result.encoded).
* On failure:
* (.buffer) is NULL,
* (.result.encoded) as in asn_encode_to_buffer(),
* The errno codes as in asn_encode_to_buffer(), plus the following:
* ENOMEM: Memory allocation failed due to system or internal limits.
* The user is responsible for freeing the (.buffer).
*/
typedef struct asn_encode_to_new_buffer_result_s {
void *buffer; /* NULL if failed to encode. */
asn_enc_rval_t result;
} asn_encode_to_new_buffer_result_t;
asn_encode_to_new_buffer_result_t asn_encode_to_new_buffer(
const asn_codec_ctx_t *opt_codec_parameters, /* See asn_codecs.h */
enum asn_transfer_syntax,
const struct asn_TYPE_descriptor_s *type_to_encode,
const void *structure_to_encode);
/*
* Generic type of an application-defined callback to return various
* types of data to the application.
* EXPECTED RETURN VALUES:
* -1: Failed to consume bytes. Abort the mission.
* Non-negative return values indicate success, and ignored.
*/
typedef int(asn_app_consume_bytes_f)(const void *buffer, size_t size,
void *application_specific_key);
/*
* A generic encoder for any supported transfer syntax.
* Returns the comprehensive encoding result descriptor (see asn_codecs.h).
* RETURN VALUES:
* The negative (.encoded) field of the return values is accompanied with the
* following error codes (errno):
* EINVAL: Incorrect parameters to the function, such as NULLs.
* ENOENT: Encoding transfer syntax is not defined (for this type).
* EBADF: The structure has invalid form or content constraint failed.
* EIO: The (callback) has returned negative value during encoding.
*/
asn_enc_rval_t asn_encode(
const asn_codec_ctx_t *opt_codec_parameters, /* See asn_codecs.h */
enum asn_transfer_syntax,
const struct asn_TYPE_descriptor_s *type_to_encode,
const void *structure_to_encode,
asn_app_consume_bytes_f *callback, void *callback_key);
/*
* A generic decoder for any supported transfer syntax.
*/
asn_dec_rval_t asn_decode(
const asn_codec_ctx_t *opt_codec_parameters, enum asn_transfer_syntax,
const struct asn_TYPE_descriptor_s *type_to_decode,
void **structure_ptr, /* Pointer to a target structure's pointer */
const void *buffer, /* Data to be decoded */
size_t size /* Size of that buffer */
);
/*
* A callback of this type is called whenever constraint validation fails
* on some ASN.1 type. See "constraints.h" for more details on constraint
* validation.
* This callback specifies a descriptor of the ASN.1 type which failed
* the constraint check, as well as human readable message on what
* particular constraint has failed.
*/
typedef void (asn_app_constraint_failed_f)(void *application_specific_key,
const struct asn_TYPE_descriptor_s *type_descriptor_which_failed,
const void *structure_which_failed_ptr,
const char *error_message_format, ...) CC_PRINTFLIKE(4, 5);
#ifdef __cplusplus
}
#endif
#include "constr_TYPE.h" /* for asn_TYPE_descriptor_t */
#endif /* ASN_APPLICATION_H */
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/*
* Copyright (c) 2005-2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_system.h>
#include <asn_internal.h>
#include <asn_bit_data.h>
/*
* Create a contiguous non-refillable bit data structure.
* Can be freed by FREEMEM().
*/
asn_bit_data_t *
asn_bit_data_new_contiguous(const void *data, size_t size_bits) {
size_t size_bytes = (size_bits + 7) / 8;
asn_bit_data_t *pd;
uint8_t *bytes;
/* Get the extensions map */
pd = CALLOC(1, sizeof(*pd) + size_bytes + 1);
if(!pd) {
return NULL;
}
bytes = (void *)(((char *)pd) + sizeof(*pd));
memcpy(bytes, data, size_bytes);
bytes[size_bytes] = 0;
pd->buffer = bytes;
pd->nboff = 0;
pd->nbits = size_bits;
return pd;
}
char *
asn_bit_data_string(asn_bit_data_t *pd) {
static char buf[2][32];
static int n;
n = (n+1) % 2;
snprintf(buf[n], sizeof(buf[n]),
"{m=%" ASN_PRI_SIZE " span %" ASN_PRI_SIZE "[%" ASN_PRI_SIZE
"..%" ASN_PRI_SIZE "] (%" ASN_PRI_SIZE ")}",
pd->moved, ((uintptr_t)(pd->buffer) & 0xf), pd->nboff, pd->nbits,
pd->nbits - pd->nboff);
return buf[n];
}
void
asn_get_undo(asn_bit_data_t *pd, int nbits) {
if((ssize_t)pd->nboff < nbits) {
assert((ssize_t)pd->nboff < nbits);
} else {
pd->nboff -= nbits;
pd->moved -= nbits;
}
}
/*
* Extract a small number of bits (<= 31) from the specified PER data pointer.
*/
int32_t
asn_get_few_bits(asn_bit_data_t *pd, int nbits) {
size_t off; /* Next after last bit offset */
ssize_t nleft; /* Number of bits left in this stream */
uint32_t accum;
const uint8_t *buf;
if(nbits < 0)
return -1;
nleft = pd->nbits - pd->nboff;
if(nbits > nleft) {
int32_t tailv, vhead;
if(!pd->refill || nbits > 31) return -1;
/* Accumulate unused bytes before refill */
ASN_DEBUG("Obtain the rest %d bits (want %d)",
(int)nleft, (int)nbits);
tailv = asn_get_few_bits(pd, nleft);
if(tailv < 0) return -1;
/* Refill (replace pd contents with new data) */
if(pd->refill(pd))
return -1;
nbits -= nleft;
vhead = asn_get_few_bits(pd, nbits);
/* Combine the rest of previous pd with the head of new one */
tailv = (tailv << nbits) | vhead; /* Could == -1 */
return tailv;
}
/*
* Normalize position indicator.
*/
if(pd->nboff >= 8) {
pd->buffer += (pd->nboff >> 3);
pd->nbits -= (pd->nboff & ~0x07);
pd->nboff &= 0x07;
}
pd->moved += nbits;
pd->nboff += nbits;
off = pd->nboff;
buf = pd->buffer;
/*
* Extract specified number of bits.
*/
if(off <= 8)
accum = nbits ? (buf[0]) >> (8 - off) : 0;
else if(off <= 16)
accum = ((buf[0] << 8) + buf[1]) >> (16 - off);
else if(off <= 24)
accum = ((buf[0] << 16) + (buf[1] << 8) + buf[2]) >> (24 - off);
else if(off <= 31)
accum = (((uint32_t)buf[0] << 24) + (buf[1] << 16)
+ (buf[2] << 8) + (buf[3])) >> (32 - off);
else if(nbits <= 31) {
asn_bit_data_t tpd = *pd;
/* Here are we with our 31-bits limit plus 1..7 bits offset. */
asn_get_undo(&tpd, nbits);
/* The number of available bits in the stream allow
* for the following operations to take place without
* invoking the ->refill() function */
accum = asn_get_few_bits(&tpd, nbits - 24) << 24;
accum |= asn_get_few_bits(&tpd, 24);
} else {
asn_get_undo(pd, nbits);
return -1;
}
accum &= (((uint32_t)1 << nbits) - 1);
ASN_DEBUG(" [PER got %2d<=%2d bits => span %d %+ld[%d..%d]:%02x (%d) => 0x%x]",
(int)nbits, (int)nleft,
(int)pd->moved,
(((long)pd->buffer) & 0xf),
(int)pd->nboff, (int)pd->nbits,
((pd->buffer != NULL)?pd->buffer[0]:0),
(int)(pd->nbits - pd->nboff),
(int)accum);
return accum;
}
/*
* Extract a large number of bits from the specified PER data pointer.
*/
int
asn_get_many_bits(asn_bit_data_t *pd, uint8_t *dst, int alright, int nbits) {
int32_t value;
if(alright && (nbits & 7)) {
/* Perform right alignment of a first few bits */
value = asn_get_few_bits(pd, nbits & 0x07);
if(value < 0) return -1;
*dst++ = value; /* value is already right-aligned */
nbits &= ~7;
}
while(nbits) {
if(nbits >= 24) {
value = asn_get_few_bits(pd, 24);
if(value < 0) return -1;
*(dst++) = value >> 16;
*(dst++) = value >> 8;
*(dst++) = value;
nbits -= 24;
} else {
value = asn_get_few_bits(pd, nbits);
if(value < 0) return -1;
if(nbits & 7) { /* implies left alignment */
value <<= 8 - (nbits & 7),
nbits += 8 - (nbits & 7);
if(nbits > 24)
*dst++ = value >> 24;
}
if(nbits > 16)
*dst++ = value >> 16;
if(nbits > 8)
*dst++ = value >> 8;
*dst++ = value;
break;
}
}
return 0;
}
/*
* Put a small number of bits (<= 31).
*/
int
asn_put_few_bits(asn_bit_outp_t *po, uint32_t bits, int obits) {
size_t off; /* Next after last bit offset */
size_t omsk; /* Existing last byte meaningful bits mask */
uint8_t *buf;
if(obits <= 0 || obits >= 32) return obits ? -1 : 0;
ASN_DEBUG("[PER put %d bits %x to %p+%d bits]",
obits, (int)bits, (void *)po->buffer, (int)po->nboff);
/*
* Normalize position indicator.
*/
if(po->nboff >= 8) {
po->buffer += (po->nboff >> 3);
po->nbits -= (po->nboff & ~0x07);
po->nboff &= 0x07;
}
/*
* Flush whole-bytes output, if necessary.
*/
if(po->nboff + obits > po->nbits) {
size_t complete_bytes;
if(!po->buffer) po->buffer = po->tmpspace;
complete_bytes = (po->buffer - po->tmpspace);
ASN_DEBUG("[PER output %ld complete + %ld]",
(long)complete_bytes, (long)po->flushed_bytes);
if(po->output(po->tmpspace, complete_bytes, po->op_key) < 0)
return -1;
if(po->nboff)
po->tmpspace[0] = po->buffer[0];
po->buffer = po->tmpspace;
po->nbits = 8 * sizeof(po->tmpspace);
po->flushed_bytes += complete_bytes;
}
/*
* Now, due to sizeof(tmpspace), we are guaranteed large enough space.
*/
buf = po->buffer;
omsk = ~((1 << (8 - po->nboff)) - 1);
off = (po->nboff + obits);
/* Clear data of debris before meaningful bits */
bits &= (((uint32_t)1 << obits) - 1);
ASN_DEBUG("[PER out %d %u/%x (t=%d,o=%d) %x&%x=%x]", obits,
(int)bits, (int)bits,
(int)po->nboff, (int)off,
buf[0], (int)(omsk&0xff),
(int)(buf[0] & omsk));
if(off <= 8) /* Completely within 1 byte */
po->nboff = off,
bits <<= (8 - off),
buf[0] = (buf[0] & omsk) | bits;
else if(off <= 16)
po->nboff = off,
bits <<= (16 - off),
buf[0] = (buf[0] & omsk) | (bits >> 8),
buf[1] = bits;
else if(off <= 24)
po->nboff = off,
bits <<= (24 - off),
buf[0] = (buf[0] & omsk) | (bits >> 16),
buf[1] = bits >> 8,
buf[2] = bits;
else if(off <= 31)
po->nboff = off,
bits <<= (32 - off),
buf[0] = (buf[0] & omsk) | (bits >> 24),
buf[1] = bits >> 16,
buf[2] = bits >> 8,
buf[3] = bits;
else {
if(asn_put_few_bits(po, bits >> (obits - 24), 24)) return -1;
if(asn_put_few_bits(po, bits, obits - 24)) return -1;
}
ASN_DEBUG("[PER out %u/%x => %02x buf+%ld]",
(int)bits, (int)bits, buf[0],
(long)(po->buffer - po->tmpspace));
return 0;
}
/*
* Output a large number of bits.
*/
int
asn_put_many_bits(asn_bit_outp_t *po, const uint8_t *src, int nbits) {
while(nbits) {
uint32_t value;
if(nbits >= 24) {
value = (src[0] << 16) | (src[1] << 8) | src[2];
src += 3;
nbits -= 24;
if(asn_put_few_bits(po, value, 24))
return -1;
} else {
value = src[0];
if(nbits > 8)
value = (value << 8) | src[1];
if(nbits > 16)
value = (value << 8) | src[2];
if(nbits & 0x07)
value >>= (8 - (nbits & 0x07));
if(asn_put_few_bits(po, value, nbits))
return -1;
break;
}
}
return 0;
}
int
asn_put_aligned_flush(asn_bit_outp_t *po) {
uint32_t unused_bits = (0x7 & (8 - (po->nboff & 0x07)));
size_t complete_bytes =
(po->buffer ? po->buffer - po->tmpspace : 0) + ((po->nboff + 7) >> 3);
if(unused_bits) {
po->buffer[po->nboff >> 3] &= ~0u << unused_bits;
}
if(po->output(po->tmpspace, complete_bytes, po->op_key) < 0) {
return -1;
} else {
po->buffer = po->tmpspace;
po->nboff = 0;
po->nbits = 8 * sizeof(po->tmpspace);
po->flushed_bytes += complete_bytes;
return 0;
}
}
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/*
* Copyright (c) 2005-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_BIT_DATA
#define ASN_BIT_DATA
#include <asn_system.h> /* Platform-specific types */
#ifdef __cplusplus
extern "C" {
#endif
/*
* This structure describes a position inside an incoming PER bit stream.
*/
typedef struct asn_bit_data_s {
const uint8_t *buffer; /* Pointer to the octet stream */
size_t nboff; /* Bit offset to the meaningful bit */
size_t nbits; /* Number of bits in the stream */
size_t moved; /* Number of bits moved through this bit stream */
int (*refill)(struct asn_bit_data_s *);
void *refill_key;
} asn_bit_data_t;
/*
* Create a contiguous non-refillable bit data structure.
* Can be freed by FREEMEM().
*/
asn_bit_data_t *asn_bit_data_new_contiguous(const void *data, size_t size_bits);
/*
* Extract a small number of bits (<= 31) from the specified PER data pointer.
* This function returns -1 if the specified number of bits could not be
* extracted due to EOD or other conditions.
*/
int32_t asn_get_few_bits(asn_bit_data_t *, int get_nbits);
/* Undo the immediately preceeding "get_few_bits" operation */
void asn_get_undo(asn_bit_data_t *, int get_nbits);
/*
* Extract a large number of bits from the specified PER data pointer.
* This function returns -1 if the specified number of bits could not be
* extracted due to EOD or other conditions.
*/
int asn_get_many_bits(asn_bit_data_t *, uint8_t *dst, int right_align,
int get_nbits);
/* Non-thread-safe debugging function, don't use it */
char *asn_bit_data_string(asn_bit_data_t *);
/*
* This structure supports forming bit output.
*/
typedef struct asn_bit_outp_s {
uint8_t *buffer; /* Pointer into the (tmpspace) */
size_t nboff; /* Bit offset to the meaningful bit */
size_t nbits; /* Number of bits left in (tmpspace) */
uint8_t tmpspace[32]; /* Preliminary storage to hold data */
int (*output)(const void *data, size_t size, void *op_key);
void *op_key; /* Key for (output) data callback */
size_t flushed_bytes; /* Bytes already flushed through (output) */
} asn_bit_outp_t;
/* Output a small number of bits (<= 31) */
int asn_put_few_bits(asn_bit_outp_t *, uint32_t bits, int obits);
/* Output a large number of bits */
int asn_put_many_bits(asn_bit_outp_t *, const uint8_t *src, int put_nbits);
/*
* Flush whole bytes (0 or more) through (outper) member.
* The least significant bits which are not used are guaranteed to be set to 0.
* Returns -1 if callback returns -1. Otherwise, 0.
*/
int asn_put_aligned_flush(asn_bit_outp_t *);
#ifdef __cplusplus
}
#endif
#endif /* ASN_BIT_DATA */
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/*
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_CODECS_H
#define ASN_CODECS_H
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* This structure defines a set of parameters that may be passed
* to every ASN.1 encoder or decoder function.
* WARNING: if max_stack_size member is set, and you are calling the
* function pointers of the asn_TYPE_descriptor_t directly,
* this structure must be ALLOCATED ON THE STACK!
* If you can't always satisfy this requirement, use ber_decode(),
* xer_decode() and uper_decode() functions instead.
*/
typedef struct asn_codec_ctx_s {
/*
* Limit the decoder routines to use no (much) more stack than a given
* number of bytes. Most of decoders are stack-based, and this
* would protect against stack overflows if the number of nested
* encodings is high.
* The OCTET STRING, BIT STRING and ANY BER decoders are heap-based,
* and are safe from this kind of overflow.
* A value from getrlimit(RLIMIT_STACK) may be used to initialize
* this variable. Be careful in multithreaded environments, as the
* stack size is rather limited.
*/
size_t max_stack_size; /* 0 disables stack bounds checking */
} asn_codec_ctx_t;
/*
* Type of the return value of the encoding functions (der_encode, xer_encode).
*/
typedef struct asn_enc_rval_s {
/*
* Number of bytes encoded.
* -1 indicates failure to encode the structure.
* In this case, the members below this one are meaningful.
*/
ssize_t encoded;
/*
* Members meaningful when (encoded == -1), for post mortem analysis.
*/
/* Type which cannot be encoded */
const struct asn_TYPE_descriptor_s *failed_type;
/* Pointer to the structure of that type */
const void *structure_ptr;
} asn_enc_rval_t;
#define ASN__ENCODE_FAILED do { \
asn_enc_rval_t tmp_error; \
tmp_error.encoded = -1; \
tmp_error.failed_type = td; \
tmp_error.structure_ptr = sptr; \
ASN_DEBUG("Failed to encode element %s", td ? td->name : ""); \
return tmp_error; \
} while(0)
#define ASN__ENCODED_OK(rval) do { \
rval.structure_ptr = 0; \
rval.failed_type = 0; \
return rval; \
} while(0)
/*
* Type of the return value of the decoding functions (ber_decode, xer_decode)
*
* Please note that the number of consumed bytes is ALWAYS meaningful,
* even if code==RC_FAIL. This is to indicate the number of successfully
* decoded bytes, hence providing a possibility to fail with more diagnostics
* (i.e., print the offending remainder of the buffer).
*/
enum asn_dec_rval_code_e {
RC_OK, /* Decoded successfully */
RC_WMORE, /* More data expected, call again */
RC_FAIL /* Failure to decode data */
};
typedef struct asn_dec_rval_s {
enum asn_dec_rval_code_e code; /* Result code */
size_t consumed; /* Number of bytes consumed */
} asn_dec_rval_t;
#define ASN__DECODE_FAILED do { \
asn_dec_rval_t tmp_error; \
tmp_error.code = RC_FAIL; \
tmp_error.consumed = 0; \
ASN_DEBUG("Failed to decode element %s", td ? td->name : ""); \
return tmp_error; \
} while(0)
#define ASN__DECODE_STARVED do { \
asn_dec_rval_t tmp_error; \
tmp_error.code = RC_WMORE; \
tmp_error.consumed = 0; \
return tmp_error; \
} while(0)
#ifdef __cplusplus
}
#endif
#endif /* ASN_CODECS_H */
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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <asn_codecs_prim.h>
#include <errno.h>
/*
* Decode an always-primitive type.
*/
asn_dec_rval_t
ber_decode_primitive(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void **sptr,
const void *buf_ptr, size_t size, int tag_mode) {
ASN__PRIMITIVE_TYPE_t *st = (ASN__PRIMITIVE_TYPE_t *)*sptr;
asn_dec_rval_t rval;
ber_tlv_len_t length = 0; /* =0 to avoid [incorrect] warning. */
/*
* If the structure is not there, allocate it.
*/
if(st == NULL) {
st = (ASN__PRIMITIVE_TYPE_t *)CALLOC(1, sizeof(*st));
if(st == NULL) ASN__DECODE_FAILED;
*sptr = (void *)st;
}
ASN_DEBUG("Decoding %s as plain primitive (tm=%d)",
td->name, tag_mode);
/*
* Check tags and extract value length.
*/
rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size,
tag_mode, 0, &length, 0);
if(rval.code != RC_OK)
return rval;
ASN_DEBUG("%s length is %d bytes", td->name, (int)length);
/*
* Make sure we have this length.
*/
buf_ptr = ((const char *)buf_ptr) + rval.consumed;
size -= rval.consumed;
if(length > (ber_tlv_len_t)size) {
rval.code = RC_WMORE;
rval.consumed = 0;
return rval;
}
st->size = (int)length;
/* The following better be optimized away. */
if(sizeof(st->size) != sizeof(length)
&& (ber_tlv_len_t)st->size != length) {
st->size = 0;
ASN__DECODE_FAILED;
}
st->buf = (uint8_t *)MALLOC(length + 1);
if(!st->buf) {
st->size = 0;
ASN__DECODE_FAILED;
}
memcpy(st->buf, buf_ptr, length);
st->buf[length] = '\0'; /* Just in case */
rval.code = RC_OK;
rval.consumed += length;
ASN_DEBUG("Took %ld/%ld bytes to encode %s",
(long)rval.consumed,
(long)length, td->name);
return rval;
}
/*
* Encode an always-primitive type using DER.
*/
asn_enc_rval_t
der_encode_primitive(const asn_TYPE_descriptor_t *td, const void *sptr,
int tag_mode, ber_tlv_tag_t tag,
asn_app_consume_bytes_f *cb, void *app_key) {
asn_enc_rval_t erval;
const ASN__PRIMITIVE_TYPE_t *st = (const ASN__PRIMITIVE_TYPE_t *)sptr;
ASN_DEBUG("%s %s as a primitive type (tm=%d)",
cb?"Encoding":"Estimating", td->name, tag_mode);
erval.encoded = der_write_tags(td, st->size, tag_mode, 0, tag,
cb, app_key);
ASN_DEBUG("%s wrote tags %d", td->name, (int)erval.encoded);
if(erval.encoded == -1) {
erval.failed_type = td;
erval.structure_ptr = sptr;
return erval;
}
if(cb && st->buf) {
if(cb(st->buf, st->size, app_key) < 0) {
erval.encoded = -1;
erval.failed_type = td;
erval.structure_ptr = sptr;
return erval;
}
} else {
assert(st->buf || st->size == 0);
}
erval.encoded += st->size;
ASN__ENCODED_OK(erval);
}
void
ASN__PRIMITIVE_TYPE_free(const asn_TYPE_descriptor_t *td, void *sptr,
enum asn_struct_free_method method) {
ASN__PRIMITIVE_TYPE_t *st = (ASN__PRIMITIVE_TYPE_t *)sptr;
if(!td || !sptr)
return;
ASN_DEBUG("Freeing %s as a primitive type", td->name);
if(st->buf)
FREEMEM(st->buf);
switch(method) {
case ASFM_FREE_EVERYTHING:
FREEMEM(sptr);
break;
case ASFM_FREE_UNDERLYING:
break;
case ASFM_FREE_UNDERLYING_AND_RESET:
memset(sptr, 0, sizeof(ASN__PRIMITIVE_TYPE_t));
break;
}
}
/*
* Local internal type passed around as an argument.
*/
struct xdp_arg_s {
const asn_TYPE_descriptor_t *type_descriptor;
void *struct_key;
xer_primitive_body_decoder_f *prim_body_decoder;
int decoded_something;
int want_more;
};
/*
* Since some kinds of primitive values can be encoded using value-specific
* tags (<MINUS-INFINITY>, <enum-element>, etc), the primitive decoder must
* be supplied with such tags to parse them as needed.
*/
static int
xer_decode__unexpected_tag(void *key, const void *chunk_buf, size_t chunk_size) {
struct xdp_arg_s *arg = (struct xdp_arg_s *)key;
enum xer_pbd_rval bret;
/*
* The chunk_buf is guaranteed to start at '<'.
*/
assert(chunk_size && ((const char *)chunk_buf)[0] == 0x3c);
/*
* Decoding was performed once already. Prohibit doing it again.
*/
if(arg->decoded_something)
return -1;
bret = arg->prim_body_decoder(arg->type_descriptor,
arg->struct_key, chunk_buf, chunk_size);
switch(bret) {
case XPBD_SYSTEM_FAILURE:
case XPBD_DECODER_LIMIT:
case XPBD_BROKEN_ENCODING:
break;
case XPBD_BODY_CONSUMED:
/* Tag decoded successfully */
arg->decoded_something = 1;
/* Fall through */
case XPBD_NOT_BODY_IGNORE: /* Safe to proceed further */
return 0;
}
return -1;
}
static ssize_t
xer_decode__primitive_body(void *key, const void *chunk_buf, size_t chunk_size, int have_more) {
struct xdp_arg_s *arg = (struct xdp_arg_s *)key;
enum xer_pbd_rval bret;
size_t lead_wsp_size;
if(arg->decoded_something) {
if(xer_whitespace_span(chunk_buf, chunk_size) == chunk_size) {
/*
* Example:
* "<INTEGER>123<!--/--> </INTEGER>"
* ^- chunk_buf position.
*/
return chunk_size;
}
/*
* Decoding was done once already. Prohibit doing it again.
*/
return -1;
}
if(!have_more) {
/*
* If we've received something like "1", we can't really
* tell whether it is really `1` or `123`, until we know
* that there is no more data coming.
* The have_more argument will be set to 1 once something
* like this is available to the caller of this callback:
* "1<tag_start..."
*/
arg->want_more = 1;
return -1;
}
lead_wsp_size = xer_whitespace_span(chunk_buf, chunk_size);
chunk_buf = (const char *)chunk_buf + lead_wsp_size;
chunk_size -= lead_wsp_size;
bret = arg->prim_body_decoder(arg->type_descriptor,
arg->struct_key, chunk_buf, chunk_size);
switch(bret) {
case XPBD_SYSTEM_FAILURE:
case XPBD_DECODER_LIMIT:
case XPBD_BROKEN_ENCODING:
break;
case XPBD_BODY_CONSUMED:
/* Tag decoded successfully */
arg->decoded_something = 1;
/* Fall through */
case XPBD_NOT_BODY_IGNORE: /* Safe to proceed further */
return lead_wsp_size + chunk_size;
}
return -1;
}
asn_dec_rval_t
xer_decode_primitive(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void **sptr,
size_t struct_size, const char *opt_mname,
const void *buf_ptr, size_t size,
xer_primitive_body_decoder_f *prim_body_decoder) {
const char *xml_tag = opt_mname ? opt_mname : td->xml_tag;
asn_struct_ctx_t s_ctx;
struct xdp_arg_s s_arg;
asn_dec_rval_t rc;
/*
* Create the structure if does not exist.
*/
if(!*sptr) {
*sptr = CALLOC(1, struct_size);
if(!*sptr) ASN__DECODE_FAILED;
}
memset(&s_ctx, 0, sizeof(s_ctx));
s_arg.type_descriptor = td;
s_arg.struct_key = *sptr;
s_arg.prim_body_decoder = prim_body_decoder;
s_arg.decoded_something = 0;
s_arg.want_more = 0;
rc = xer_decode_general(opt_codec_ctx, &s_ctx, &s_arg,
xml_tag, buf_ptr, size,
xer_decode__unexpected_tag, xer_decode__primitive_body);
switch(rc.code) {
case RC_OK:
if(!s_arg.decoded_something) {
char ch;
ASN_DEBUG("Primitive body is not recognized, "
"supplying empty one");
/*
* Decoding opportunity has come and gone.
* Where's the result?
* Try to feed with empty body, see if it eats it.
*/
if(prim_body_decoder(s_arg.type_descriptor,
s_arg.struct_key, &ch, 0)
!= XPBD_BODY_CONSUMED) {
/*
* This decoder does not like empty stuff.
*/
ASN__DECODE_FAILED;
}
}
break;
case RC_WMORE:
/*
* Redo the whole thing later.
* We don't have a context to save intermediate parsing state.
*/
rc.consumed = 0;
break;
case RC_FAIL:
rc.consumed = 0;
if(s_arg.want_more)
rc.code = RC_WMORE;
else
ASN__DECODE_FAILED;
break;
}
return rc;
}
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/*-
* Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_CODECS_PRIM_H
#define ASN_CODECS_PRIM_H
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct ASN__PRIMITIVE_TYPE_s {
uint8_t *buf; /* Buffer with consecutive primitive encoding bytes */
size_t size; /* Size of the buffer */
} ASN__PRIMITIVE_TYPE_t; /* Do not use this type directly! */
asn_struct_free_f ASN__PRIMITIVE_TYPE_free;
ber_type_decoder_f ber_decode_primitive;
der_type_encoder_f der_encode_primitive;
/*
* A callback specification for the xer_decode_primitive() function below.
*/
enum xer_pbd_rval {
XPBD_SYSTEM_FAILURE, /* System failure (memory shortage, etc) */
XPBD_DECODER_LIMIT, /* Hit some decoder limitation or deficiency */
XPBD_BROKEN_ENCODING, /* Encoding of a primitive body is broken */
XPBD_NOT_BODY_IGNORE, /* Not a body format, but safe to ignore */
XPBD_BODY_CONSUMED /* Body is recognized and consumed */
};
typedef enum xer_pbd_rval(xer_primitive_body_decoder_f)(
const asn_TYPE_descriptor_t *td, void *struct_ptr, const void *chunk_buf,
size_t chunk_size);
/*
* Specific function to decode simple primitive types.
* Also see xer_decode_general() in xer_decoder.h
*/
asn_dec_rval_t xer_decode_primitive(
const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *type_descriptor, void **struct_ptr,
size_t struct_size, const char *opt_mname, const void *buf_ptr, size_t size,
xer_primitive_body_decoder_f *prim_body_decoder);
#ifdef __cplusplus
}
#endif
#endif /* ASN_CODECS_PRIM_H */
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#include <asn_internal.h>
ssize_t
asn__format_to_callback(int (*cb)(const void *, size_t, void *key), void *key,
const char *fmt, ...) {
char scratch[64];
char *buf = scratch;
size_t buf_size = sizeof(scratch);
int wrote;
int cb_ret;
do {
va_list args;
va_start(args, fmt);
wrote = vsnprintf(buf, buf_size, fmt, args);
if(wrote < (ssize_t)buf_size) {
if(wrote < 0) {
if(buf != scratch) FREEMEM(buf);
return -1;
}
break;
}
buf_size <<= 1;
if(buf == scratch) {
buf = MALLOC(buf_size);
if(!buf) return -1;
} else {
void *p = REALLOC(buf, buf_size);
if(!p) {
FREEMEM(buf);
return -1;
}
buf = p;
}
} while(1);
cb_ret = cb(buf, wrote, key);
if(buf != scratch) FREEMEM(buf);
if(cb_ret < 0) {
return -1;
}
return wrote;
}
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/*
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
/*
* Declarations internally useful for the ASN.1 support code.
*/
#ifndef ASN_INTERNAL_H
#define ASN_INTERNAL_H
#define __EXTENSIONS__ /* for Sun */
#include "asn_application.h" /* Application-visible API */
#ifndef __NO_ASSERT_H__ /* Include assert.h only for internal use. */
#include <assert.h> /* for assert() macro */
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Environment version might be used to avoid running with the old library */
#define ASN1C_ENVIRONMENT_VERSION 923 /* Compile-time version */
int get_asn1c_environment_version(void); /* Run-time version */
#define CALLOC(nmemb, size) calloc(nmemb, size)
#define MALLOC(size) malloc(size)
#define REALLOC(oldptr, size) realloc(oldptr, size)
#define FREEMEM(ptr) free(ptr)
#define asn_debug_indent 0
#define ASN_DEBUG_INDENT_ADD(i) do{}while(0)
#ifdef EMIT_ASN_DEBUG
#warning "Use ASN_EMIT_DEBUG instead of EMIT_ASN_DEBUG"
#define ASN_EMIT_DEBUG EMIT_ASN_DEBUG
#endif
/*
* A macro for debugging the ASN.1 internals.
* You may enable or override it.
*/
#ifndef ASN_DEBUG /* If debugging code is not defined elsewhere... */
#if ASN_EMIT_DEBUG == 1 /* And it was asked to emit this code... */
#if __STDC_VERSION__ >= 199901L
#ifdef ASN_THREAD_SAFE
/* Thread safety requires sacrifice in output indentation:
* Retain empty definition of ASN_DEBUG_INDENT_ADD. */
#else /* !ASN_THREAD_SAFE */
#undef ASN_DEBUG_INDENT_ADD
#undef asn_debug_indent
int asn_debug_indent;
#define ASN_DEBUG_INDENT_ADD(i) do { asn_debug_indent += i; } while(0)
#endif /* ASN_THREAD_SAFE */
#define ASN_DEBUG(fmt, args...) do { \
int adi = asn_debug_indent; \
while(adi--) fprintf(stderr, " "); \
fprintf(stderr, fmt, ##args); \
fprintf(stderr, " (%s:%d)\n", \
__FILE__, __LINE__); \
} while(0)
#else /* !C99 */
void CC_PRINTFLIKE(1, 2) ASN_DEBUG_f(const char *fmt, ...);
#define ASN_DEBUG ASN_DEBUG_f
#endif /* C99 */
#else /* ASN_EMIT_DEBUG != 1 */
#if __STDC_VERSION__ >= 199901L
#define ASN_DEBUG(...) do{}while(0)
#else /* not C99 */
static void CC_PRINTFLIKE(1, 2) ASN_DEBUG(const char *fmt, ...) { (void)fmt; }
#endif /* C99 or better */
#endif /* ASN_EMIT_DEBUG */
#endif /* ASN_DEBUG */
/*
* Print to a callback.
* The callback is expected to return negative values on error.
* 0 and positive values are treated as success.
* RETURN VALUES:
* -1: Failed to format or invoke the callback.
* >0: Size of the data that got delivered to the callback.
*/
ssize_t CC_PRINTFLIKE(3, 4)
asn__format_to_callback(
int (*callback)(const void *, size_t, void *key), void *key,
const char *fmt, ...);
/*
* Invoke the application-supplied callback and fail, if something is wrong.
*/
#define ASN__E_cbc(buf, size) (cb((buf), (size), app_key) < 0)
#define ASN__E_CALLBACK(size, foo) \
do { \
if(foo) goto cb_failed; \
er.encoded += (size); \
} while(0)
#define ASN__CALLBACK(buf, size) ASN__E_CALLBACK(size, ASN__E_cbc(buf, size))
#define ASN__CALLBACK2(buf1, size1, buf2, size2) \
ASN__E_CALLBACK((size1) + (size2), \
ASN__E_cbc(buf1, size1) || ASN__E_cbc(buf2, size2))
#define ASN__CALLBACK3(buf1, size1, buf2, size2, buf3, size3) \
ASN__E_CALLBACK((size1) + (size2) + (size3), \
ASN__E_cbc(buf1, size1) || ASN__E_cbc(buf2, size2) \
|| ASN__E_cbc(buf3, size3))
#define ASN__TEXT_INDENT(nl, level) \
do { \
int tmp_level = (level); \
int tmp_nl = ((nl) != 0); \
int tmp_i; \
if(tmp_nl) ASN__CALLBACK("\n", 1); \
if(tmp_level < 0) tmp_level = 0; \
for(tmp_i = 0; tmp_i < tmp_level; tmp_i++) ASN__CALLBACK(" ", 4); \
} while(0)
#define _i_INDENT(nl) do { \
int tmp_i; \
if((nl) && cb("\n", 1, app_key) < 0) \
return -1; \
for(tmp_i = 0; tmp_i < ilevel; tmp_i++) \
if(cb(" ", 4, app_key) < 0) \
return -1; \
} while(0)
/*
* Check stack against overflow, if limit is set.
*/
#define ASN__DEFAULT_STACK_MAX (30000)
static int CC_NOTUSED
ASN__STACK_OVERFLOW_CHECK(const asn_codec_ctx_t *ctx) {
if(ctx && ctx->max_stack_size) {
/* ctx MUST be allocated on the stack */
ptrdiff_t usedstack = ((const char *)ctx - (const char *)&ctx);
if(usedstack > 0) usedstack = -usedstack; /* grows up! */
/* double negative required to avoid int wrap-around */
if(usedstack < -(ptrdiff_t)ctx->max_stack_size) {
ASN_DEBUG("Stack limit %ld reached",
(long)ctx->max_stack_size);
return -1;
}
}
return 0;
}
#ifdef __cplusplus
}
#endif
#endif /* ASN_INTERNAL_H */
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/*
* Run-time support for Information Object Classes.
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_IOC_H
#define ASN_IOC_H
#include <asn_system.h> /* Platform-specific types */
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s;
struct asn_ioc_cell_s;
/*
* X.681, #13
*/
typedef struct asn_ioc_set_s {
size_t rows_count;
size_t columns_count;
const struct asn_ioc_cell_s *rows;
} asn_ioc_set_t;
typedef struct asn_ioc_cell_s {
const char *field_name; /* Is equal to corresponding column_name */
enum {
aioc__value,
aioc__type,
aioc__open_type,
} cell_kind;
struct asn_TYPE_descriptor_s *type_descriptor;
const void *value_sptr;
struct {
size_t types_count;
struct {
unsigned choice_position;
} *types;
} open_type;
} asn_ioc_cell_t;
#ifdef __cplusplus
}
#endif
#endif /* ASN_IOC_H */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <asn_random_fill.h>
#include <constr_TYPE.h>
int
asn_random_fill(const struct asn_TYPE_descriptor_s *td, void **struct_ptr,
size_t length) {
if(td && td->op->random_fill) {
asn_random_fill_result_t res =
td->op->random_fill(td, struct_ptr, 0, length);
return (res.code == ARFILL_OK) ? 0 : -1;
} else {
return -1;
}
}
static uintmax_t
asn__intmax_range(intmax_t lb, intmax_t ub) {
assert(lb <= ub);
if((ub < 0) == (lb < 0)) {
return ub - lb;
} else if(lb < 0) {
return 1 + ((uintmax_t)ub + (uintmax_t)-(lb + 1));
} else {
assert(!"Unreachable");
return 0;
}
}
intmax_t
asn_random_between(intmax_t lb, intmax_t rb) {
if(lb == rb) {
return lb;
} else {
const uintmax_t intmax_max = ((~(uintmax_t)0) >> 1);
uintmax_t range = asn__intmax_range(lb, rb);
uintmax_t value = 0;
uintmax_t got_entropy = 0;
assert(RAND_MAX > 0xffffff); /* Seen 7ffffffd! */
assert(range < intmax_max);
for(; got_entropy < range;) {
got_entropy = (got_entropy << 24) | 0xffffff;
value = (value << 24) | (random() % 0xffffff);
}
return lb + (intmax_t)(value % (range + 1));
}
}
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_RANDOM_FILL
#define ASN_RANDOM_FILL
/* Forward declarations */
struct asn_TYPE_descriptor_s;
struct asn_encoding_constraints_s;
/*
* Initialize a structure with random data according to the type specification
* and optional member constraints.
* ARGUMENTS:
* (max_length) - See (approx_max_length_limit).
* (memb_constraints) - Member constraints, if exist.
* The type can be constrained differently according
* to PER and OER specifications, so we find a value
* at the intersection of these constraints.
* In case the return differs from ARFILL_OK, the (struct_ptr) contents
* and (current_length) value remain in their original state.
*/
typedef struct asn_random_fill_result_s {
enum {
ARFILL_FAILED = -1, /* System error (memory?) */
ARFILL_OK = 0, /* Initialization succeeded */
ARFILL_SKIPPED = 1 /* Not done due to (length?) constraint */
} code;
size_t length; /* Approximate number of bytes created. */
} asn_random_fill_result_t;
typedef asn_random_fill_result_t(asn_random_fill_f)(
const struct asn_TYPE_descriptor_s *td, void **struct_ptr,
const struct asn_encoding_constraints_s *memb_constraints,
size_t max_length);
/*
* Returns 0 if the structure was properly initialized, -1 otherwise.
* The (approx_max_length_limit) specifies the approximate limit of the
* resulting structure in units closely resembling bytes. The actual result
* might be several times larger or smaller than the length limit.
*/
int asn_random_fill(const struct asn_TYPE_descriptor_s *td, void **struct_ptr,
size_t approx_max_length_limit);
/*
* Returns a random number between min and max.
*/
intmax_t asn_random_between(intmax_t min, intmax_t max);
#endif /* ASN_RANDOM_FILL */
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/*
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
/*
* Miscellaneous system-dependent types.
*/
#ifndef ASN_SYSTEM_H
#define ASN_SYSTEM_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef _DEFAULT_SOURCE
#define _DEFAULT_SOURCE 1
#endif
#ifndef _BSD_SOURCE
#define _BSD_SOURCE /* for snprintf() on some linux systems */
#endif
#include <stdio.h> /* For snprintf(3) */
#include <stdlib.h> /* For *alloc(3) */
#include <string.h> /* For memcpy(3) */
#include <sys/types.h> /* For size_t */
#include <limits.h> /* For LONG_MAX */
#include <stdarg.h> /* For va_start */
#include <stddef.h> /* for offsetof and ptrdiff_t */
#ifdef _WIN32
#include <malloc.h>
#define snprintf _snprintf
#define vsnprintf _vsnprintf
/* To avoid linking with ws2_32.lib, here's the definition of ntohl() */
#define sys_ntohl(l) ((((l) << 24) & 0xff000000) \
| (((l) << 8) & 0xff0000) \
| (((l) >> 8) & 0xff00) \
| ((l >> 24) & 0xff))
#ifdef _MSC_VER /* MSVS.Net */
#ifndef __cplusplus
#define inline __inline
#endif
#ifndef ASSUMESTDTYPES /* Standard types have been defined elsewhere */
#define ssize_t SSIZE_T
#if _MSC_VER < 1600
typedef char int8_t;
typedef short int16_t;
typedef int int32_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#else /* _MSC_VER >= 1600 */
#include <stdint.h>
#endif /* _MSC_VER < 1600 */
#endif /* ASSUMESTDTYPES */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <float.h>
#define isnan _isnan
#define finite _finite
#define copysign _copysign
#define ilogb _logb
#else /* !_MSC_VER */
#include <stdint.h>
#endif /* _MSC_VER */
#else /* !_WIN32 */
#if defined(__vxworks)
#include <types/vxTypes.h>
#else /* !defined(__vxworks) */
#include <inttypes.h> /* C99 specifies this file */
#include <netinet/in.h> /* for ntohl() */
#define sys_ntohl(foo) ntohl(foo)
#endif /* defined(__vxworks) */
#endif /* _WIN32 */
#if __GNUC__ >= 3 || defined(__clang__)
#define CC_ATTRIBUTE(attr) __attribute__((attr))
#else
#define CC_ATTRIBUTE(attr)
#endif
#define CC_PRINTFLIKE(fmt, var) CC_ATTRIBUTE(format(printf, fmt, var))
#define CC_NOTUSED CC_ATTRIBUTE(unused)
#ifndef CC_ATTR_NO_SANITIZE
#define CC_ATTR_NO_SANITIZE(what) CC_ATTRIBUTE(no_sanitize(what))
#endif
/* Figure out if thread safety is requested */
#if !defined(ASN_THREAD_SAFE) && (defined(THREAD_SAFE) || defined(_REENTRANT))
#define ASN_THREAD_SAFE
#endif /* Thread safety */
#ifndef offsetof /* If not defined by <stddef.h> */
#define offsetof(s, m) ((ptrdiff_t)&(((s *)0)->m) - (ptrdiff_t)((s *)0))
#endif /* offsetof */
#ifndef MIN /* Suitable for comparing primitive types (integers) */
#if defined(__GNUC__)
#define MIN(a,b) ({ __typeof a _a = a; __typeof b _b = b; \
((_a)<(_b)?(_a):(_b)); })
#else /* !__GNUC__ */
#define MIN(a,b) ((a)<(b)?(a):(b)) /* Unsafe variant */
#endif /* __GNUC__ */
#endif /* MIN */
#if __STDC_VERSION__ >= 199901L
#ifndef SIZE_MAX
#define SIZE_MAX ((~((size_t)0)) >> 1)
#endif
#ifndef RSIZE_MAX /* C11, Annex K */
#define RSIZE_MAX (SIZE_MAX >> 1)
#endif
#ifndef RSSIZE_MAX /* Halve signed size even further than unsigned */
#define RSSIZE_MAX ((ssize_t)(RSIZE_MAX >> 1))
#endif
#else /* Old compiler */
#undef SIZE_MAX
#undef RSIZE_MAX
#undef RSSIZE_MAX
#define SIZE_MAX ((~((size_t)0)) >> 1)
#define RSIZE_MAX (SIZE_MAX >> 1)
#define RSSIZE_MAX ((ssize_t)(RSIZE_MAX >> 1))
#endif
#if __STDC_VERSION__ >= 199901L
#define ASN_PRI_SIZE "zu"
#define ASN_PRI_SSIZE "zd"
#define ASN_PRIuMAX PRIuMAX
#define ASN_PRIdMAX PRIdMAX
#else
#define ASN_PRI_SIZE "lu"
#define ASN_PRI_SSIZE "ld"
#if LLONG_MAX > LONG_MAX
#define ASN_PRIuMAX "llu"
#define ASN_PRIdMAX "lld"
#else
#define ASN_PRIuMAX "lu"
#define ASN_PRIdMAX "ld"
#endif
#endif
#endif /* ASN_SYSTEM_H */
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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#undef ADVANCE
#define ADVANCE(num_bytes) do { \
size_t num = num_bytes; \
ptr = ((const char *)ptr) + num; \
size -= num; \
consumed_myself += num; \
} while(0)
#undef RETURN
#define RETURN(_code) do { \
asn_dec_rval_t rval; \
rval.code = _code; \
if(opt_ctx) opt_ctx->step = step; /* Save context */ \
if(_code == RC_OK || opt_ctx) \
rval.consumed = consumed_myself; \
else \
rval.consumed = 0; /* Context-free */ \
return rval; \
} while(0)
/*
* The BER decoder of any type.
*/
asn_dec_rval_t
ber_decode(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *type_descriptor, void **struct_ptr,
const void *ptr, size_t size) {
asn_codec_ctx_t s_codec_ctx;
/*
* Stack checker requires that the codec context
* must be allocated on the stack.
*/
if(opt_codec_ctx) {
if(opt_codec_ctx->max_stack_size) {
s_codec_ctx = *opt_codec_ctx;
opt_codec_ctx = &s_codec_ctx;
}
} else {
/* If context is not given, be security-conscious anyway */
memset(&s_codec_ctx, 0, sizeof(s_codec_ctx));
s_codec_ctx.max_stack_size = ASN__DEFAULT_STACK_MAX;
opt_codec_ctx = &s_codec_ctx;
}
/*
* Invoke type-specific decoder.
*/
return type_descriptor->op->ber_decoder(opt_codec_ctx, type_descriptor,
struct_ptr, /* Pointer to the destination structure */
ptr, size, /* Buffer and its size */
0 /* Default tag mode is 0 */
);
}
/*
* Check the set of <TL<TL<TL...>>> tags matches the definition.
*/
asn_dec_rval_t
ber_check_tags(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, asn_struct_ctx_t *opt_ctx,
const void *ptr, size_t size, int tag_mode, int last_tag_form,
ber_tlv_len_t *last_length, int *opt_tlv_form) {
ssize_t consumed_myself = 0;
ssize_t tag_len;
ssize_t len_len;
ber_tlv_tag_t tlv_tag;
ber_tlv_len_t tlv_len;
ber_tlv_len_t limit_len = -1;
int expect_00_terminators = 0;
int tlv_constr = -1; /* If CHOICE, opt_tlv_form is not given */
int step = opt_ctx ? opt_ctx->step : 0; /* Where we left previously */
int tagno;
/*
* Make sure we didn't exceed the maximum stack size.
*/
if(ASN__STACK_OVERFLOW_CHECK(opt_codec_ctx))
RETURN(RC_FAIL);
/*
* So what does all this implicit skip stuff mean?
* Imagine two types,
* A ::= [5] IMPLICIT T
* B ::= [2] EXPLICIT T
* Where T is defined as
* T ::= [4] IMPLICIT SEQUENCE { ... }
*
* Let's say, we are starting to decode type A, given the
* following TLV stream: <5> <0>. What does this mean?
* It means that the type A contains type T which is,
* in turn, empty.
* Remember though, that we are still in A. We cannot
* just pass control to the type T decoder. Why? Because
* the type T decoder expects <4> <0>, not <5> <0>.
* So, we must make sure we are going to receive <5> while
* still in A, then pass control to the T decoder, indicating
* that the tag <4> was implicitly skipped. The decoder of T
* hence will be prepared to treat <4> as valid tag, and decode
* it appropriately.
*/
tagno = step /* Continuing where left previously */
+ (tag_mode==1?-1:0)
;
ASN_DEBUG("ber_check_tags(%s, size=%ld, tm=%d, step=%d, tagno=%d)",
td->name, (long)size, tag_mode, step, tagno);
/* assert(td->tags_count >= 1) May not be the case for CHOICE or ANY */
if(tag_mode == 0 && tagno == (int)td->tags_count) {
/*
* This must be the _untagged_ ANY type,
* which outermost tag isn't known in advance.
* Fetch the tag and length separately.
*/
tag_len = ber_fetch_tag(ptr, size, &tlv_tag);
switch(tag_len) {
case -1: RETURN(RC_FAIL);
case 0: RETURN(RC_WMORE);
}
tlv_constr = BER_TLV_CONSTRUCTED(ptr);
len_len = ber_fetch_length(tlv_constr,
(const char *)ptr + tag_len, size - tag_len, &tlv_len);
switch(len_len) {
case -1: RETURN(RC_FAIL);
case 0: RETURN(RC_WMORE);
}
ASN_DEBUG("Advancing %ld in ANY case",
(long)(tag_len + len_len));
ADVANCE(tag_len + len_len);
} else {
assert(tagno < (int)td->tags_count); /* At least one loop */
}
for((void)tagno; tagno < (int)td->tags_count; tagno++, step++) {
/*
* Fetch and process T from TLV.
*/
tag_len = ber_fetch_tag(ptr, size, &tlv_tag);
ASN_DEBUG("Fetching tag from {%p,%ld}: "
"len %ld, step %d, tagno %d got %s",
ptr, (long)size,
(long)tag_len, step, tagno,
ber_tlv_tag_string(tlv_tag));
switch(tag_len) {
case -1: RETURN(RC_FAIL);
case 0: RETURN(RC_WMORE);
}
tlv_constr = BER_TLV_CONSTRUCTED(ptr);
/*
* If {I}, don't check anything.
* If {I,B,C}, check B and C unless we're at I.
*/
if(tag_mode != 0 && step == 0) {
/*
* We don't expect tag to match here.
* It's just because we don't know how the tag
* is supposed to look like.
*/
} else {
assert(tagno >= 0); /* Guaranteed by the code above */
if(tlv_tag != td->tags[tagno]) {
/*
* Unexpected tag. Too bad.
*/
ASN_DEBUG("Expected: %s, "
"expectation failed (tn=%d, tm=%d)",
ber_tlv_tag_string(td->tags[tagno]),
tagno, tag_mode
);
RETURN(RC_FAIL);
}
}
/*
* Attention: if there are more tags expected,
* ensure that the current tag is presented
* in constructed form (it contains other tags!).
* If this one is the last one, check that the tag form
* matches the one given in descriptor.
*/
if(tagno < ((int)td->tags_count - 1)) {
if(tlv_constr == 0) {
ASN_DEBUG("tlv_constr = %d, expfail",
tlv_constr);
RETURN(RC_FAIL);
}
} else {
if(last_tag_form != tlv_constr
&& last_tag_form != -1) {
ASN_DEBUG("last_tag_form %d != %d",
last_tag_form, tlv_constr);
RETURN(RC_FAIL);
}
}
/*
* Fetch and process L from TLV.
*/
len_len = ber_fetch_length(tlv_constr,
(const char *)ptr + tag_len, size - tag_len, &tlv_len);
ASN_DEBUG("Fetching len = %ld", (long)len_len);
switch(len_len) {
case -1: RETURN(RC_FAIL);
case 0: RETURN(RC_WMORE);
}
/*
* FIXME
* As of today, the chain of tags
* must either contain several indefinite length TLVs,
* or several definite length ones.
* No mixing is allowed.
*/
if(tlv_len == -1) {
/*
* Indefinite length.
*/
if(limit_len == -1) {
expect_00_terminators++;
} else {
ASN_DEBUG("Unexpected indefinite length "
"in a chain of definite lengths");
RETURN(RC_FAIL);
}
ADVANCE(tag_len + len_len);
continue;
} else {
if(expect_00_terminators) {
ASN_DEBUG("Unexpected definite length "
"in a chain of indefinite lengths");
RETURN(RC_FAIL);
}
}
/*
* Check that multiple TLVs specify ever decreasing length,
* which is consistent.
*/
if(limit_len == -1) {
limit_len = tlv_len + tag_len + len_len;
if(limit_len < 0) {
/* Too great tlv_len value? */
RETURN(RC_FAIL);
}
} else if(limit_len != tlv_len + tag_len + len_len) {
/*
* Inner TLV specifies length which is inconsistent
* with the outer TLV's length value.
*/
ASN_DEBUG("Outer TLV is %ld and inner is %ld",
(long)limit_len, (long)tlv_len);
RETURN(RC_FAIL);
}
ADVANCE(tag_len + len_len);
limit_len -= (tag_len + len_len);
if((ssize_t)size > limit_len) {
/*
* Make sure that we won't consume more bytes
* from the parent frame than the inferred limit.
*/
size = limit_len;
}
}
if(opt_tlv_form)
*opt_tlv_form = tlv_constr;
if(expect_00_terminators)
*last_length = -expect_00_terminators;
else
*last_length = tlv_len;
RETURN(RC_OK);
}
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _BER_DECODER_H_
#define _BER_DECODER_H_
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
struct asn_codec_ctx_s; /* Forward declaration */
/*
* The BER decoder of any type.
* This function may be invoked directly from the application.
* Decodes BER, DER and CER data (DER and CER are different subsets of BER).
*
* NOTE: Use the der_encode() function (der_encoder.h) to produce encoding
* which is compliant with ber_decode().
*/
asn_dec_rval_t ber_decode(
const struct asn_codec_ctx_s *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor,
void **struct_ptr, /* Pointer to a target structure's pointer */
const void *buffer, /* Data to be decoded */
size_t size /* Size of that buffer */
);
/*
* Type of generic function which decodes the byte stream into the structure.
*/
typedef asn_dec_rval_t(ber_type_decoder_f)(
const struct asn_codec_ctx_s *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor, void **struct_ptr,
const void *buf_ptr, size_t size, int tag_mode);
/*******************************
* INTERNALLY USEFUL FUNCTIONS *
*******************************/
/*
* Check that all tags correspond to the type definition (as given in head).
* On return, last_length would contain either a non-negative length of the
* value part of the last TLV, or the negative number of expected
* "end of content" sequences. The number may only be negative if the
* head->last_tag_form is non-zero.
*/
asn_dec_rval_t ber_check_tags(
const struct asn_codec_ctx_s *opt_codec_ctx, /* codec options */
const struct asn_TYPE_descriptor_s *type_descriptor,
asn_struct_ctx_t *opt_ctx, /* saved decoding context */
const void *ptr, size_t size,
int tag_mode, /* {-1,0,1}: IMPLICIT, no, EXPLICIT */
int last_tag_form, /* {-1,0:1}: any, primitive, constr */
ber_tlv_len_t *last_length, int *opt_tlv_form /* optional tag form */
);
#ifdef __cplusplus
}
#endif
#endif /* _BER_DECODER_H_ */
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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <ber_tlv_length.h>
#include <ber_tlv_tag.h>
ssize_t
ber_fetch_length(int _is_constructed, const void *bufptr, size_t size,
ber_tlv_len_t *len_r) {
const uint8_t *buf = (const uint8_t *)bufptr;
unsigned oct;
if(size == 0)
return 0; /* Want more */
oct = *(const uint8_t *)buf;
if((oct & 0x80) == 0) {
/*
* Short definite length.
*/
*len_r = oct; /* & 0x7F */
return 1;
} else {
ber_tlv_len_t len;
size_t skipped;
if(_is_constructed && oct == 0x80) {
*len_r = -1; /* Indefinite length */
return 1;
}
if(oct == 0xff) {
/* Reserved in standard for future use. */
return -1;
}
oct &= 0x7F; /* Leave only the 7 LS bits */
for(len = 0, buf++, skipped = 1;
oct && (++skipped <= size); buf++, oct--) {
/* Verify that we won't overflow. */
if(!(len >> ((8 * sizeof(len)) - (8+1)))) {
len = (len << 8) | *buf;
} else {
/* Too large length value. */
return -1;
}
}
if(oct == 0) {
if(len < 0 || len > RSSIZE_MAX) {
/* Length value out of sane range. */
return -1;
}
*len_r = len;
return skipped;
}
return 0; /* Want more */
}
}
ssize_t
ber_skip_length(const asn_codec_ctx_t *opt_codec_ctx,
int _is_constructed, const void *ptr, size_t size) {
ber_tlv_len_t vlen; /* Length of V in TLV */
ssize_t tl; /* Length of L in TLV */
ssize_t ll; /* Length of L in TLV */
size_t skip;
/*
* Make sure we didn't exceed the maximum stack size.
*/
if(ASN__STACK_OVERFLOW_CHECK(opt_codec_ctx))
return -1;
/*
* Determine the size of L in TLV.
*/
ll = ber_fetch_length(_is_constructed, ptr, size, &vlen);
if(ll <= 0) return ll;
/*
* Definite length.
*/
if(vlen >= 0) {
skip = ll + vlen;
if(skip > size)
return 0; /* Want more */
return skip;
}
/*
* Indefinite length!
*/
ASN_DEBUG("Skipping indefinite length");
for(skip = ll, ptr = ((const char *)ptr) + ll, size -= ll;;) {
ber_tlv_tag_t tag;
/* Fetch the tag */
tl = ber_fetch_tag(ptr, size, &tag);
if(tl <= 0) return tl;
ll = ber_skip_length(opt_codec_ctx,
BER_TLV_CONSTRUCTED(ptr),
((const char *)ptr) + tl, size - tl);
if(ll <= 0) return ll;
skip += tl + ll;
/*
* This may be the end of the indefinite length structure,
* two consecutive 0 octets.
* Check if it is true.
*/
if(((const uint8_t *)ptr)[0] == 0
&& ((const uint8_t *)ptr)[1] == 0)
return skip;
ptr = ((const char *)ptr) + tl + ll;
size -= tl + ll;
}
/* UNREACHABLE */
}
size_t
der_tlv_length_serialize(ber_tlv_len_t len, void *bufp, size_t size) {
size_t required_size; /* Size of len encoding */
uint8_t *buf = (uint8_t *)bufp;
uint8_t *end;
int i;
if(len <= 127) {
/* Encoded in 1 octet */
if(size) *buf = (uint8_t)len;
return 1;
}
/*
* Compute the size of the subsequent bytes.
*/
for(required_size = 1, i = 8; i < 8 * (int)sizeof(len); i += 8) {
if(len >> i)
required_size++;
else
break;
}
if(size <= required_size)
return required_size + 1;
*buf++ = (uint8_t)(0x80 | required_size); /* Length of the encoding */
/*
* Produce the len encoding, space permitting.
*/
end = buf + required_size;
for(i -= 8; buf < end; i -= 8, buf++)
*buf = (uint8_t)(len >> i);
return required_size + 1;
}
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _BER_TLV_LENGTH_H_
#define _BER_TLV_LENGTH_H_
#ifdef __cplusplus
extern "C" {
#endif
typedef ssize_t ber_tlv_len_t;
/*
* This function tries to fetch the length of the BER TLV value and place it
* in *len_r.
* RETURN VALUES:
* 0: More data expected than bufptr contains.
* -1: Fatal error deciphering length.
* >0: Number of bytes used from bufptr.
* On return with >0, len_r is constrained as -1..MAX, where -1 mean
* that the value is of indefinite length.
*/
ssize_t ber_fetch_length(int _is_constructed, const void *bufptr, size_t size,
ber_tlv_len_t *len_r);
/*
* This function expects bufptr to be positioned over L in TLV.
* It returns number of bytes occupied by L and V together, suitable
* for skipping. The function properly handles indefinite length.
* RETURN VALUES:
* Standard {-1,0,>0} convention.
*/
ssize_t ber_skip_length(
const struct asn_codec_ctx_s *opt_codec_ctx, /* optional context */
int _is_constructed, const void *bufptr, size_t size);
/*
* This function serializes the length (L from TLV) in DER format.
* It always returns number of bytes necessary to represent the length,
* it is a caller's responsibility to check the return value
* against the supplied buffer's size.
*/
size_t der_tlv_length_serialize(ber_tlv_len_t len, void *bufptr, size_t size);
#ifdef __cplusplus
}
#endif
#endif /* _BER_TLV_LENGTH_H_ */
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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <ber_tlv_tag.h>
#include <errno.h>
ssize_t
ber_fetch_tag(const void *ptr, size_t size, ber_tlv_tag_t *tag_r) {
ber_tlv_tag_t val;
ber_tlv_tag_t tclass;
size_t skipped;
if(size == 0)
return 0;
val = *(const uint8_t *)ptr;
tclass = (val >> 6);
if((val &= 0x1F) != 0x1F) {
/*
* Simple form: everything encoded in a single octet.
* Tag Class is encoded using two least significant bits.
*/
*tag_r = (val << 2) | tclass;
return 1;
}
/*
* Each octet contains 7 bits of useful information.
* The MSB is 0 if it is the last octet of the tag.
*/
for(val = 0, ptr = ((const char *)ptr) + 1, skipped = 2;
skipped <= size;
ptr = ((const char *)ptr) + 1, skipped++) {
unsigned int oct = *(const uint8_t *)ptr;
if(oct & 0x80) {
val = (val << 7) | (oct & 0x7F);
/*
* Make sure there are at least 9 bits spare
* at the MS side of a value.
*/
if(val >> ((8 * sizeof(val)) - 9)) {
/*
* We would not be able to accomodate
* any more tag bits.
*/
return -1;
}
} else {
val = (val << 7) | oct;
*tag_r = (val << 2) | tclass;
return skipped;
}
}
return 0; /* Want more */
}
ssize_t
ber_tlv_tag_fwrite(ber_tlv_tag_t tag, FILE *f) {
char buf[sizeof("[APPLICATION ]") + 32];
ssize_t ret;
ret = ber_tlv_tag_snprint(tag, buf, sizeof(buf));
if(ret >= (ssize_t)sizeof(buf) || ret < 2) {
errno = EPERM;
return -1;
}
return fwrite(buf, 1, ret, f);
}
ssize_t
ber_tlv_tag_snprint(ber_tlv_tag_t tag, char *buf, size_t size) {
const char *type = 0;
int ret;
switch(tag & 0x3) {
case ASN_TAG_CLASS_UNIVERSAL: type = "UNIVERSAL "; break;
case ASN_TAG_CLASS_APPLICATION: type = "APPLICATION "; break;
case ASN_TAG_CLASS_CONTEXT: type = ""; break;
case ASN_TAG_CLASS_PRIVATE: type = "PRIVATE "; break;
}
ret = snprintf(buf, size, "[%s%u]", type, ((unsigned)tag) >> 2);
if(ret <= 0 && size) buf[0] = '\0'; /* against broken libc's */
return ret;
}
char *
ber_tlv_tag_string(ber_tlv_tag_t tag) {
static char buf[sizeof("[APPLICATION ]") + 32];
(void)ber_tlv_tag_snprint(tag, buf, sizeof(buf));
return buf;
}
size_t
ber_tlv_tag_serialize(ber_tlv_tag_t tag, void *bufp, size_t size) {
int tclass = BER_TAG_CLASS(tag);
ber_tlv_tag_t tval = BER_TAG_VALUE(tag);
uint8_t *buf = (uint8_t *)bufp;
uint8_t *end;
size_t required_size;
size_t i;
if(tval <= 30) {
/* Encoded in 1 octet */
if(size) buf[0] = (tclass << 6) | tval;
return 1;
} else if(size) {
*buf++ = (tclass << 6) | 0x1F;
size--;
}
/*
* Compute the size of the subsequent bytes.
*/
for(required_size = 1, i = 7; i < 8 * sizeof(tval); i += 7) {
if(tval >> i)
required_size++;
else
break;
}
if(size < required_size)
return required_size + 1;
/*
* Fill in the buffer, space permitting.
*/
end = buf + required_size - 1;
for(i -= 7; buf < end; i -= 7, buf++)
*buf = 0x80 | ((tval >> i) & 0x7F);
*buf = (tval & 0x7F); /* Last octet without high bit */
return required_size + 1;
}
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _BER_TLV_TAG_H_
#define _BER_TLV_TAG_H_
#ifdef __cplusplus
extern "C" {
#endif
enum asn_tag_class {
ASN_TAG_CLASS_UNIVERSAL = 0, /* 0b00 */
ASN_TAG_CLASS_APPLICATION = 1, /* 0b01 */
ASN_TAG_CLASS_CONTEXT = 2, /* 0b10 */
ASN_TAG_CLASS_PRIVATE = 3 /* 0b11 */
};
typedef unsigned ber_tlv_tag_t; /* BER TAG from Tag-Length-Value */
/*
* Tag class is encoded together with tag value for optimization purposes.
*/
#define BER_TAG_CLASS(tag) ((tag) & 0x3)
#define BER_TAG_VALUE(tag) ((tag) >> 2)
#define BER_TLV_CONSTRUCTED(tagptr) (((*(const uint8_t *)tagptr)&0x20)?1:0)
#define BER_TAGS_EQUAL(tag1, tag2) ((tag1) == (tag2))
/*
* Several functions for printing the TAG in the canonical form
* (i.e. "[PRIVATE 0]").
* Return values correspond to their libc counterparts (if any).
*/
ssize_t ber_tlv_tag_snprint(ber_tlv_tag_t tag, char *buf, size_t buflen);
ssize_t ber_tlv_tag_fwrite(ber_tlv_tag_t tag, FILE *);
char *ber_tlv_tag_string(ber_tlv_tag_t tag);
/*
* This function tries to fetch the tag from the input stream.
* RETURN VALUES:
* 0: More data expected than bufptr contains.
* -1: Fatal error deciphering tag.
* >0: Number of bytes used from bufptr. tag_r will contain the tag.
*/
ssize_t ber_fetch_tag(const void *bufptr, size_t size, ber_tlv_tag_t *tag_r);
/*
* This function serializes the tag (T from TLV) in BER format.
* It always returns number of bytes necessary to represent the tag,
* it is a caller's responsibility to check the return value
* against the supplied buffer's size.
*/
size_t ber_tlv_tag_serialize(ber_tlv_tag_t tag, void *bufptr, size_t size);
#ifdef __cplusplus
}
#endif
#endif /* _BER_TLV_TAG_H_ */
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/*
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _CONSTR_CHOICE_H_
#define _CONSTR_CHOICE_H_
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct asn_CHOICE_specifics_s {
/*
* Target structure description.
*/
unsigned struct_size; /* Size of the target structure. */
unsigned ctx_offset; /* Offset of the asn_codec_ctx_t member */
unsigned pres_offset; /* Identifier of the present member */
unsigned pres_size; /* Size of the identifier (enum) */
/*
* Tags to members mapping table.
*/
const asn_TYPE_tag2member_t *tag2el;
unsigned tag2el_count;
/* Canonical ordering of CHOICE elements, for PER */
const unsigned *to_canonical_order;
const unsigned *from_canonical_order;
/*
* Extensions-related stuff.
*/
signed ext_start; /* First member of extensions, or -1 */
} asn_CHOICE_specifics_t;
/*
* A set specialized functions dealing with the CHOICE type.
*/
asn_struct_free_f CHOICE_free;
asn_struct_print_f CHOICE_print;
asn_struct_compare_f CHOICE_compare;
asn_constr_check_f CHOICE_constraint;
ber_type_decoder_f CHOICE_decode_ber;
der_type_encoder_f CHOICE_encode_der;
xer_type_decoder_f CHOICE_decode_xer;
xer_type_encoder_f CHOICE_encode_xer;
oer_type_decoder_f CHOICE_decode_oer;
oer_type_encoder_f CHOICE_encode_oer;
per_type_decoder_f CHOICE_decode_uper;
per_type_encoder_f CHOICE_encode_uper;
asn_outmost_tag_f CHOICE_outmost_tag;
asn_random_fill_f CHOICE_random_fill;
extern asn_TYPE_operation_t asn_OP_CHOICE;
/*
* Return the 1-based choice variant presence index.
* Returns 0 in case of error.
*/
unsigned CHOICE_variant_get_presence(const asn_TYPE_descriptor_t *td,
const void *structure_ptr);
/*
* Sets or resets the 1-based choice variant presence index.
* In case a previous index is not zero, the currently selected structure
* member is freed and zeroed-out first.
* Returns 0 on success and -1 on error.
*/
int CHOICE_variant_set_presence(const asn_TYPE_descriptor_t *td,
void *structure_ptr, unsigned present);
#ifdef __cplusplus
}
#endif
#endif /* _CONSTR_CHOICE_H_ */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_DISABLE_OER_SUPPORT
#include <asn_internal.h>
#include <constr_CHOICE.h>
#include <errno.h>
/*
* Return a standardized complex structure.
*/
#undef RETURN
#define RETURN(_code) \
do { \
asn_dec_rval_t rval; \
rval.code = _code; \
rval.consumed = consumed_myself; \
return rval; \
} while(0)
#undef ADVANCE
#define ADVANCE(num_bytes) \
do { \
size_t num = num_bytes; \
ptr = ((const char *)ptr) + num; \
size -= num; \
consumed_myself += num; \
} while(0)
/*
* Switch to the next phase of parsing.
*/
#undef NEXT_PHASE
#define NEXT_PHASE(ctx) \
do { \
ctx->phase++; \
ctx->step = 0; \
} while(0)
#undef SET_PHASE
#define SET_PHASE(ctx, value) \
do { \
ctx->phase = value; \
ctx->step = 0; \
} while(0)
/*
* Tags are canonically sorted in the tag to member table.
*/
static int
_search4tag(const void *ap, const void *bp) {
const asn_TYPE_tag2member_t *a = (const asn_TYPE_tag2member_t *)ap;
const asn_TYPE_tag2member_t *b = (const asn_TYPE_tag2member_t *)bp;
int a_class = BER_TAG_CLASS(a->el_tag);
int b_class = BER_TAG_CLASS(b->el_tag);
if(a_class == b_class) {
ber_tlv_tag_t a_value = BER_TAG_VALUE(a->el_tag);
ber_tlv_tag_t b_value = BER_TAG_VALUE(b->el_tag);
if(a_value == b_value)
return 0;
else if(a_value < b_value)
return -1;
else
return 1;
} else if(a_class < b_class) {
return -1;
} else {
return 1;
}
}
/*
* X.696 (08/2015) #8.7 Encoding of tags
*/
static ssize_t
oer_fetch_tag(const void *ptr, size_t size, ber_tlv_tag_t *tag_r) {
ber_tlv_tag_t val;
ber_tlv_tag_t tclass;
size_t skipped;
if(size == 0)
return 0;
val = *(const uint8_t *)ptr;
tclass = (val >> 6);
if((val & 0x3F) != 0x3F) {
/* #8.7.1 */
*tag_r = ((val & 0x3F) << 2) | tclass;
return 1;
}
/*
* Each octet contains 7 bits of useful information.
* The MSB is 0 if it is the last octet of the tag.
*/
for(val = 0, ptr = ((const char *)ptr) + 1, skipped = 2; skipped <= size;
ptr = ((const char *)ptr) + 1, skipped++) {
unsigned int oct = *(const uint8_t *)ptr;
if(oct & 0x80) {
val = (val << 7) | (oct & 0x7F);
/*
* Make sure there are at least 9 bits spare
* at the MS side of a value.
*/
if(val >> ((8 * sizeof(val)) - 9)) {
/*
* We would not be able to accomodate
* any more tag bits.
*/
return -1;
}
} else {
val = (val << 7) | oct;
*tag_r = (val << 2) | tclass;
return skipped;
}
}
return 0; /* Want more */
}
asn_dec_rval_t
CHOICE_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, void **struct_ptr,
const void *ptr, size_t size) {
/*
* Bring closer parts of structure description.
*/
const asn_CHOICE_specifics_t *specs =
(const asn_CHOICE_specifics_t *)td->specifics;
asn_TYPE_member_t *elements = td->elements;
/*
* Parts of the structure being constructed.
*/
void *st = *struct_ptr; /* Target structure. */
asn_struct_ctx_t *ctx; /* Decoder context */
ssize_t consumed_myself = 0; /* Consumed bytes from ptr */
(void)constraints;
ASN_DEBUG("Decoding %s as CHOICE", td->name);
/*
* Create the target structure if it is not present already.
*/
if(st == 0) {
st = *struct_ptr = CALLOC(1, specs->struct_size);
if(st == 0) {
RETURN(RC_FAIL);
}
}
/*
* Restore parsing context.
*/
ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
switch(ctx->phase) {
case 0: {
/*
* Discover the tag.
*/
ber_tlv_tag_t tlv_tag; /* T from TLV */
ssize_t tag_len; /* Length of TLV's T */
tag_len = oer_fetch_tag(ptr, size, &tlv_tag);
switch(tag_len) {
case 0:
ASN__DECODE_STARVED;
case -1:
ASN__DECODE_FAILED;
}
do {
const asn_TYPE_tag2member_t *t2m;
asn_TYPE_tag2member_t key = {0, 0, 0, 0};
key.el_tag = tlv_tag;
t2m = (const asn_TYPE_tag2member_t *)bsearch(
&key, specs->tag2el, specs->tag2el_count,
sizeof(specs->tag2el[0]), _search4tag);
if(t2m) {
/*
* Found the element corresponding to the tag.
*/
NEXT_PHASE(ctx);
ctx->step = t2m->el_no;
break;
} else if(specs->ext_start == -1) {
ASN_DEBUG(
"Unexpected tag %s "
"in non-extensible CHOICE %s",
ber_tlv_tag_string(tlv_tag), td->name);
RETURN(RC_FAIL);
} else {
/* Skip open type extension */
ASN_DEBUG(
"Not implemented skipping open type extension for tag %s",
ber_tlv_tag_string(tlv_tag));
RETURN(RC_FAIL);
}
} while(0);
ADVANCE(tag_len);
}
/* Fall through */
case 1: {
asn_TYPE_member_t *elm = &elements[ctx->step]; /* CHOICE's element */
void *memb_ptr; /* Pointer to the member */
void **memb_ptr2; /* Pointer to that pointer */
asn_dec_rval_t rval;
/*
* Compute the position of the member inside a structure,
* and also a type of containment (it may be contained
* as pointer or using inline inclusion).
*/
if(elm->flags & ATF_POINTER) {
/* Member is a pointer to another structure */
memb_ptr2 = (void **)((char *)st + elm->memb_offset);
} else {
/*
* A pointer to a pointer
* holding the start of the structure
*/
memb_ptr = (char *)st + elm->memb_offset;
memb_ptr2 = &memb_ptr;
}
/* Set presence to be able to free it properly at any time */
(void)CHOICE_variant_set_presence(td, st, ctx->step + 1);
if(specs->ext_start >= 0 && specs->ext_start <= ctx->step) {
ssize_t got =
oer_open_type_get(opt_codec_ctx, elm->type,
elm->encoding_constraints.oer_constraints,
memb_ptr2, ptr, size);
if(got < 0) ASN__DECODE_FAILED;
if(got == 0) ASN__DECODE_STARVED;
rval.code = RC_OK;
rval.consumed = got;
} else {
rval = elm->type->op->oer_decoder(
opt_codec_ctx, elm->type,
elm->encoding_constraints.oer_constraints, memb_ptr2, ptr,
size);
}
rval.consumed += consumed_myself;
switch(rval.code) {
case RC_OK:
NEXT_PHASE(ctx);
case RC_WMORE:
break;
case RC_FAIL:
SET_PHASE(ctx, 3); /* => 3 */
}
return rval;
}
case 2:
/* Already decoded everything */
RETURN(RC_OK);
case 3:
/* Failed to decode, after all */
RETURN(RC_FAIL);
}
RETURN(RC_FAIL);
}
/*
* X.696 (08/2015) #8.7 Encoding of tags
*/
static ssize_t
oer_put_tag(ber_tlv_tag_t tag, asn_app_consume_bytes_f *cb, void *app_key) {
uint8_t tclass = BER_TAG_CLASS(tag);
ber_tlv_tag_t tval = BER_TAG_VALUE(tag);
if(tval < 0x3F) {
uint8_t b = (uint8_t)((tclass << 6) | tval);
if(cb(&b, 1, app_key) < 0) {
return -1;
}
return 1;
} else {
uint8_t buf[1 + 2 * sizeof(tval)];
uint8_t *b = &buf[sizeof(buf)-1]; /* Last addressable */
size_t encoded;
for(; ; tval >>= 7) {
if(tval >> 7) {
*b-- = 0x80 | (tval & 0x7f);
} else {
*b-- = tval & 0x7f;
break;
}
}
*b = (uint8_t)((tclass << 6) | 0x3F);
encoded = sizeof(buf) - (b - buf);
if(cb(b, encoded, app_key) < 0) {
return -1;
}
return encoded;
}
}
/*
* Encode as Canonical OER.
*/
asn_enc_rval_t
CHOICE_encode_oer(const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, const void *sptr,
asn_app_consume_bytes_f *cb, void *app_key) {
const asn_CHOICE_specifics_t *specs =
(const asn_CHOICE_specifics_t *)td->specifics;
asn_TYPE_member_t *elm; /* CHOICE element */
unsigned present;
const void *memb_ptr;
ber_tlv_tag_t tag;
ssize_t tag_len;
asn_enc_rval_t er = {0, 0, 0};
(void)constraints;
if(!sptr) ASN__ENCODE_FAILED;
ASN_DEBUG("OER %s encoding as CHOICE", td->name);
present = CHOICE_variant_get_presence(td, sptr);
if(present == 0 || present > td->elements_count) {
ASN_DEBUG("CHOICE %s member is not selected", td->name);
ASN__ENCODE_FAILED;
}
elm = &td->elements[present-1];
if(elm->flags & ATF_POINTER) {
memb_ptr =
*(const void *const *)((const char *)sptr + elm->memb_offset);
if(memb_ptr == 0) {
/* Mandatory element absent */
ASN__ENCODE_FAILED;
}
} else {
memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
}
tag = asn_TYPE_outmost_tag(elm->type, memb_ptr, elm->tag_mode, elm->tag);
if(tag == 0) {
ASN__ENCODE_FAILED;
}
tag_len = oer_put_tag(tag, cb, app_key);
if(tag_len < 0) {
ASN__ENCODE_FAILED;
}
if(specs->ext_start >= 0 && (unsigned)specs->ext_start <= (present-1)) {
ssize_t encoded = oer_open_type_put(elm->type,
elm->encoding_constraints.oer_constraints,
memb_ptr, cb, app_key);
if(encoded < 0) ASN__ENCODE_FAILED;
er.encoded = tag_len + encoded;
} else {
er = elm->type->op->oer_encoder(
elm->type, elm->encoding_constraints.oer_constraints, memb_ptr, cb,
app_key);
if(er.encoded >= 0) er.encoded += tag_len;
}
return er;
}
#endif /* ASN_DISABLE_OER_SUPPORT */
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _CONSTR_SEQUENCE_H_
#define _CONSTR_SEQUENCE_H_
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct asn_SEQUENCE_specifics_s {
/*
* Target structure description.
*/
unsigned struct_size; /* Size of the target structure. */
unsigned ctx_offset; /* Offset of the asn_struct_ctx_t member */
/*
* Tags to members mapping table (sorted).
*/
const asn_TYPE_tag2member_t *tag2el;
unsigned tag2el_count;
/*
* Optional members of the extensions root (roms) or additions (aoms).
* Meaningful for PER.
*/
const int *oms; /* Optional MemberS */
unsigned roms_count; /* Root optional members count */
unsigned aoms_count; /* Additions optional members count */
/*
* Description of an extensions group.
* Root components are clustered at the beginning of the structure,
* whereas extensions are clustered at the end. -1 means not extensible.
*/
signed first_extension; /* First extension addition */
} asn_SEQUENCE_specifics_t;
/*
* A set specialized functions dealing with the SEQUENCE type.
*/
asn_struct_free_f SEQUENCE_free;
asn_struct_print_f SEQUENCE_print;
asn_struct_compare_f SEQUENCE_compare;
asn_constr_check_f SEQUENCE_constraint;
ber_type_decoder_f SEQUENCE_decode_ber;
der_type_encoder_f SEQUENCE_encode_der;
xer_type_decoder_f SEQUENCE_decode_xer;
xer_type_encoder_f SEQUENCE_encode_xer;
oer_type_decoder_f SEQUENCE_decode_oer;
oer_type_encoder_f SEQUENCE_encode_oer;
per_type_decoder_f SEQUENCE_decode_uper;
per_type_encoder_f SEQUENCE_encode_uper;
asn_random_fill_f SEQUENCE_random_fill;
extern asn_TYPE_operation_t asn_OP_SEQUENCE;
#ifdef __cplusplus
}
#endif
#endif /* _CONSTR_SEQUENCE_H_ */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_DISABLE_OER_SUPPORT
#include <asn_internal.h>
#include <constr_SEQUENCE.h>
#include <OPEN_TYPE.h>
#include <errno.h>
/*
* This macro "eats" the part of the buffer which is definitely "consumed",
* i.e. was correctly converted into local representation or rightfully skipped.
*/
#undef ADVANCE
#define ADVANCE(num_bytes) \
do { \
size_t num = num_bytes; \
ptr = ((const char *)ptr) + num; \
size -= num; \
consumed_myself += num; \
} while(0)
/*
* Switch to the next phase of parsing.
*/
#undef NEXT_PHASE
#undef PHASE_OUT
#define NEXT_PHASE(ctx) \
do { \
ctx->phase++; \
ctx->step = 0; \
} while(0)
/*
* Check whether we are inside the extensions group.
*/
#define IN_EXTENSION_GROUP(specs, memb_idx) \
((specs)->first_extension >= 0 \
&& (unsigned)(specs)->first_extension <= (memb_idx))
#define IN_ROOT_GROUP_PRED(edx) \
edx < (specs->first_extension < 0 ? td->elements_count \
: (size_t)specs->first_extension)
#define FOR_IN_ROOT_GROUP(edx) for(edx = 0; IN_ROOT_GROUP_PRED(edx); edx++)
/*
* Return a standardized complex structure.
*/
#undef RETURN
#define RETURN(_code) do { \
rval.code = _code; \
rval.consumed = consumed_myself;\
return rval; \
} while(0)
/*
* Return pointer to a member.
*/
static void **
element_ptrptr(void *struct_ptr, asn_TYPE_member_t *elm, void **tmp_save_ptr) {
if(elm->flags & ATF_POINTER) {
/* Member is a pointer to another structure */
return (void **)((char *)struct_ptr + elm->memb_offset);
} else {
assert(tmp_save_ptr);
*tmp_save_ptr = (void *)((char *)struct_ptr + elm->memb_offset);
return tmp_save_ptr;
}
}
static const void *
element_ptr(const void *struct_ptr, const asn_TYPE_member_t *elm) {
if(elm->flags & ATF_POINTER) {
/* Member is a pointer to another structure */
return *(const void *const *)((const char *)struct_ptr
+ elm->memb_offset);
} else {
return (const void *)((const char *)struct_ptr + elm->memb_offset);
}
}
asn_dec_rval_t
SEQUENCE_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, void **struct_ptr,
const void *ptr, size_t size) {
const asn_SEQUENCE_specifics_t *specs =
(const asn_SEQUENCE_specifics_t *)td->specifics;
asn_dec_rval_t rval = {RC_OK, 0};
void *st = *struct_ptr; /* Target structure */
asn_struct_ctx_t *ctx; /* Decoder context */
size_t consumed_myself = 0; /* Consumed bytes from ptr. */
(void)constraints;
if(ASN__STACK_OVERFLOW_CHECK(opt_codec_ctx))
ASN__DECODE_FAILED;
/*
* Create the target structure if it is not present already.
*/
if(st == 0) {
st = *struct_ptr = CALLOC(1, specs->struct_size);
if(st == 0) {
RETURN(RC_FAIL);
}
}
/*
* Restore parsing context.
*/
ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
/*
* Start to parse where left previously.
*/
switch(ctx->phase) {
case 0: {
/*
* Fetch preamble.
*/
asn_bit_data_t *preamble;
int has_extensions_bit = (specs->first_extension >= 0);
size_t preamble_bits = (has_extensions_bit + specs->roms_count);
size_t preamble_bytes = ((7 + preamble_bits) >> 3);
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 0", td->name);
ASN_DEBUG(
"Expecting preamble bits %" ASN_PRI_SIZE " for %s (including %d extension bits)",
preamble_bits, td->name, has_extensions_bit);
if(preamble_bytes > size) {
ASN__DECODE_STARVED;
}
preamble = asn_bit_data_new_contiguous(ptr, preamble_bits);
if(!preamble) {
RETURN(RC_FAIL);
}
preamble->nboff = has_extensions_bit;
ctx->ptr = preamble;
ADVANCE(preamble_bytes);
}
NEXT_PHASE(ctx);
/* FALL THROUGH */
case 1: {
/* Decode components of the extension root */
asn_bit_data_t *preamble = ctx->ptr;
size_t edx;
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 1 (Root)", td->name);
assert(preamble);
for(edx = (ctx->step >> 1); IN_ROOT_GROUP_PRED(edx);
edx++, ctx->step = (ctx->step & ~1) + 2) {
asn_TYPE_member_t *elm = &td->elements[edx];
ASN_DEBUG("Decoding %s->%s", td->name, elm->name);
assert(!IN_EXTENSION_GROUP(specs, edx));
if(ctx->step & 1) {
goto microphase2_decode_continues;
}
if(elm->optional) {
int32_t present = asn_get_few_bits(preamble, 1);
if(present < 0) {
ASN_DEBUG("Presence map ended prematurely: %d", present);
RETURN(RC_FAIL);
} else if(present == 0) {
if(elm->default_value_set) {
/* Fill-in DEFAULT */
void *tmp;
if(elm->default_value_set(
element_ptrptr(st, elm, &tmp))) {
RETURN(RC_FAIL);
}
}
/* The member is not present. */
continue;
}
/* Present OPTIONAL or DEFAULT component. */
}
/*
* MICROPHASE 2: Invoke the member-specific decoder.
*/
ctx->step |= 1; /* Confirm entering next microphase */
microphase2_decode_continues:
if(elm->flags & ATF_OPEN_TYPE) {
rval = OPEN_TYPE_oer_get(opt_codec_ctx, td, st, elm, ptr, size);
} else {
void *save_memb_ptr; /* Temporary reference. */
void **memb_ptr2; /* Pointer to a pointer to a memmber */
memb_ptr2 = element_ptrptr(st, elm, &save_memb_ptr);
rval = elm->type->op->oer_decoder(
opt_codec_ctx, elm->type,
elm->encoding_constraints.oer_constraints, memb_ptr2, ptr,
size);
}
switch(rval.code) {
case RC_OK:
ADVANCE(rval.consumed);
break;
case RC_WMORE:
ASN_DEBUG("More bytes needed at element %s \"%s\"", td->name,
elm->name);
ADVANCE(rval.consumed);
RETURN(RC_WMORE);
case RC_FAIL:
ASN_DEBUG("Decoding failed at element %s \"%s\"", td->name,
elm->name);
RETURN(RC_FAIL);
}
} /* for(all root members) */
}
NEXT_PHASE(ctx);
/* FALL THROUGH */
case 2:
assert(ctx->ptr);
{
/* Cleanup preamble. */
asn_bit_data_t *preamble = ctx->ptr;
asn_bit_data_t *extadds;
int has_extensions_bit = (specs->first_extension >= 0);
int extensions_present =
has_extensions_bit
&& (preamble->buffer == NULL
|| (((const uint8_t *)preamble->buffer)[0] & 0x80));
uint8_t unused_bits;
size_t len = 0;
ssize_t len_len;
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 2", td->name);
preamble->buffer = 0; /* Will do extensions_present==1 next time. */
if(!extensions_present) {
ctx->phase = 10;
RETURN(RC_OK);
}
/*
* X.696 (08/2015) #16.1 (c), #16.4
* Read in the extension addition presence bitmap.
*/
len_len = oer_fetch_length(ptr, size, &len);
if(len_len > 0) {
ADVANCE(len_len);
} else if(len_len < 0) {
RETURN(RC_FAIL);
} else {
RETURN(RC_WMORE);
}
if(len == 0) {
/* 16.4.1-2 */
RETURN(RC_FAIL);
} else if(len > size) {
RETURN(RC_WMORE);
}
/* Account for unused bits */
unused_bits = 0x7 & *(const uint8_t *)ptr;
ADVANCE(1);
len--;
if(unused_bits && len == 0) {
RETURN(RC_FAIL);
}
/* Get the extensions map */
extadds = asn_bit_data_new_contiguous(ptr, len * 8 - unused_bits);
if(!extadds) {
RETURN(RC_FAIL);
}
FREEMEM(preamble);
ctx->ptr = extadds;
ADVANCE(len);
}
NEXT_PHASE(ctx);
ctx->step =
(specs->first_extension < 0 ? td->elements_count
: (size_t)specs->first_extension);
/* Fall through */
case 3:
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 3 (Extensions)", td->name);
for(; ctx->step < (signed)td->elements_count; ctx->step++) {
asn_bit_data_t *extadds = ctx->ptr;
size_t edx = ctx->step;
asn_TYPE_member_t *elm = &td->elements[edx];
void *tmp_memb_ptr;
void **memb_ptr2 = element_ptrptr(st, elm, &tmp_memb_ptr);
switch(asn_get_few_bits(extadds, 1)) {
case -1:
/*
* Not every one of our extensions is known to the remote side.
* Continue filling in their defaults though.
*/
/* Fall through */
case 0:
/* Fill-in DEFAULT */
if(elm->default_value_set
&& elm->default_value_set(memb_ptr2)) {
RETURN(RC_FAIL);
}
continue;
case 1: {
/* Read OER open type */
ssize_t ot_size =
oer_open_type_get(opt_codec_ctx, elm->type,
elm->encoding_constraints.oer_constraints,
memb_ptr2, ptr, size);
assert(ot_size <= (ssize_t)size);
if(ot_size > 0) {
ADVANCE(ot_size);
} else if(ot_size < 0) {
RETURN(RC_FAIL);
} else {
/* Roll back open type parsing */
asn_get_undo(extadds, 1);
RETURN(RC_WMORE);
}
break;
}
default:
RETURN(RC_FAIL);
}
}
NEXT_PHASE(ctx);
/* Fall through */
case 4:
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 4", td->name);
/* Read in the rest of Open Types while ignoring them */
for(;;) {
asn_bit_data_t *extadds = ctx->ptr;
switch(asn_get_few_bits(extadds, 1)) {
case 0:
continue;
case 1: {
ssize_t skipped = oer_open_type_skip(ptr, size);
if(skipped > 0) {
ADVANCE(skipped);
} else if(skipped < 0) {
RETURN(RC_FAIL);
} else {
asn_get_undo(extadds, 1);
RETURN(RC_WMORE);
}
continue;
}
case -1:
/* No more Open Type encoded components */
break;
default:
RETURN(RC_FAIL);
}
break;
}
}
RETURN(RC_OK);
}
/*
* Encode as Canonical OER.
*/
asn_enc_rval_t
SEQUENCE_encode_oer(const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, const void *sptr,
asn_app_consume_bytes_f *cb, void *app_key) {
const asn_SEQUENCE_specifics_t *specs = (const asn_SEQUENCE_specifics_t *)td->specifics;
size_t computed_size = 0;
int has_extensions_bit = (specs->first_extension >= 0);
size_t preamble_bits = (has_extensions_bit + specs->roms_count);
uint32_t has_extensions = 0;
size_t edx;
int ret;
(void)constraints;
if(preamble_bits) {
asn_bit_outp_t preamble;
memset(&preamble, 0, sizeof(preamble));
preamble.output = cb;
preamble.op_key = app_key;
if(has_extensions_bit) {
for(edx = specs->first_extension; edx < td->elements_count; edx++) {
asn_TYPE_member_t *elm = &td->elements[edx];
const void *memb_ptr = element_ptr(sptr, elm);
if(memb_ptr) {
if(elm->default_value_cmp
&& elm->default_value_cmp(memb_ptr) == 0) {
/* Do not encode default values in extensions */
} else {
has_extensions = 1;
break;
}
}
}
ret = asn_put_few_bits(&preamble, has_extensions, 1);
assert(ret == 0);
if(ret < 0) {
ASN__ENCODE_FAILED;
}
}
/*
* Encode optional components bitmap.
*/
if(specs->roms_count) {
FOR_IN_ROOT_GROUP(edx) {
asn_TYPE_member_t *elm = &td->elements[edx];
if(IN_EXTENSION_GROUP(specs, edx)) break;
if(elm->optional) {
const void *memb_ptr = element_ptr(sptr, elm);
uint32_t has_component = memb_ptr != NULL;
if(has_component && elm->default_value_cmp
&& elm->default_value_cmp(memb_ptr) == 0) {
has_component = 0;
}
ret = asn_put_few_bits(&preamble, has_component, 1);
if(ret < 0) {
ASN__ENCODE_FAILED;
}
}
}
}
asn_put_aligned_flush(&preamble);
computed_size += preamble.flushed_bytes;
} /* if(preamble_bits) */
/*
* Put root components and extensions root.
*/
for(edx = 0; edx < td->elements_count; edx++) {
asn_TYPE_member_t *elm = &td->elements[edx];
asn_enc_rval_t er;
const void *memb_ptr;
if(IN_EXTENSION_GROUP(specs, edx)) break;
memb_ptr = element_ptr(sptr, elm);
if(memb_ptr) {
if(elm->default_value_cmp
&& elm->default_value_cmp(memb_ptr) == 0) {
/* Skip default values in encoding */
continue;
}
} else {
if(elm->optional) continue;
/* Mandatory element is missing */
ASN__ENCODE_FAILED;
}
if(!elm->type->op->oer_encoder) {
ASN_DEBUG("OER encoder is not defined for type %s", elm->type->name);
ASN__ENCODE_FAILED;
}
er = elm->type->op->oer_encoder(
elm->type, elm->encoding_constraints.oer_constraints, memb_ptr, cb,
app_key);
if(er.encoded == -1) {
ASN_DEBUG("... while encoding %s member \"%s\"\n", td->name,
elm->name);
return er;
}
computed_size += er.encoded;
}
/*
* Before encode extensions, encode extensions additions presense bitmap
# X.696 (08/2015) #16.4.
*/
if(has_extensions) {
asn_bit_outp_t extadds;
/* Special case allowing us to use exactly one byte for #8.6 */
size_t aoms_length_bits = specs->aoms_count;
size_t aoms_length_bytes = (7 + aoms_length_bits) >> 3;
uint8_t unused_bits = 0x07 & (8 - (aoms_length_bits & 0x07));
assert(1 + aoms_length_bytes <= 127);
memset(&extadds, 0, sizeof(extadds));
extadds.output = cb;
extadds.op_key = app_key;
/* #8.6 length determinant */
ret = asn_put_few_bits(&extadds, (1 + aoms_length_bytes), 8);
if(ret < 0) ASN__ENCODE_FAILED;
/* Number of unused bytes, #16.4.2 */
ret = asn_put_few_bits(&extadds, unused_bits, 8);
if(ret < 0) ASN__ENCODE_FAILED;
/* Encode presence bitmap #16.4.3 */
for(edx = specs->first_extension; edx < td->elements_count; edx++) {
asn_TYPE_member_t *elm = &td->elements[edx];
const void *memb_ptr = element_ptr(sptr, elm);
if(memb_ptr && elm->default_value_cmp
&& elm->default_value_cmp(memb_ptr) == 0) {
memb_ptr = 0; /* Do not encode default value. */
}
ret |= asn_put_few_bits(&extadds, memb_ptr ? 1 : 0, 1);
}
if(ret < 0) ASN__ENCODE_FAILED;
asn_put_aligned_flush(&extadds);
computed_size += extadds.flushed_bytes;
/* Now, encode extensions */
for(edx = specs->first_extension; edx < td->elements_count; edx++) {
asn_TYPE_member_t *elm = &td->elements[edx];
const void *memb_ptr = element_ptr(sptr, elm);
if(memb_ptr) {
if(elm->default_value_cmp
&& elm->default_value_cmp(memb_ptr) == 0) {
/* Do not encode default value. */
} else {
ssize_t wrote = oer_open_type_put(
elm->type, elm->encoding_constraints.oer_constraints,
memb_ptr, cb, app_key);
if(wrote == -1) {
ASN__ENCODE_FAILED;
}
computed_size += wrote;
}
} else if(!elm->optional) {
ASN__ENCODE_FAILED;
}
}
} /* if(has_extensions) */
{
asn_enc_rval_t er = {0, 0, 0};
er.encoded = computed_size;
ASN__ENCODED_OK(er);
}
}
#endif /* ASN_DISABLE_OER_SUPPORT */
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef CONSTR_SET_OF_H
#define CONSTR_SET_OF_H
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct asn_SET_OF_specifics_s {
/*
* Target structure description.
*/
unsigned struct_size; /* Size of the target structure. */
unsigned ctx_offset; /* Offset of the asn_struct_ctx_t member */
/* XER-specific stuff */
int as_XMLValueList; /* The member type must be encoded like this */
} asn_SET_OF_specifics_t;
/*
* A set specialized functions dealing with the SET OF type.
*/
asn_struct_free_f SET_OF_free;
asn_struct_print_f SET_OF_print;
asn_struct_compare_f SET_OF_compare;
asn_constr_check_f SET_OF_constraint;
ber_type_decoder_f SET_OF_decode_ber;
der_type_encoder_f SET_OF_encode_der;
xer_type_decoder_f SET_OF_decode_xer;
xer_type_encoder_f SET_OF_encode_xer;
oer_type_decoder_f SET_OF_decode_oer;
oer_type_encoder_f SET_OF_encode_oer;
per_type_decoder_f SET_OF_decode_uper;
per_type_encoder_f SET_OF_encode_uper;
asn_random_fill_f SET_OF_random_fill;
extern asn_TYPE_operation_t asn_OP_SET_OF;
#ifdef __cplusplus
}
#endif
#endif /* CONSTR_SET_OF_H */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN_DISABLE_OER_SUPPORT
#include <asn_internal.h>
#include <constr_SET_OF.h>
#include <asn_SET_OF.h>
#include <errno.h>
/*
* This macro "eats" the part of the buffer which is definitely "consumed",
* i.e. was correctly converted into local representation or rightfully skipped.
*/
#undef ADVANCE
#define ADVANCE(num_bytes) \
do { \
size_t num = num_bytes; \
ptr = ((const char *)ptr) + num; \
size -= num; \
consumed_myself += num; \
} while(0)
/*
* Switch to the next phase of parsing.
*/
#undef NEXT_PHASE
#define NEXT_PHASE(ctx) \
do { \
ctx->phase++; \
ctx->step = 0; \
} while(0)
#undef SET_PHASE
#define SET_PHASE(ctx, value) \
do { \
ctx->phase = value; \
ctx->step = 0; \
} while(0)
/*
* Return a standardized complex structure.
*/
#undef RETURN
#define RETURN(_code) \
do { \
asn_dec_rval_t rval; \
rval.code = _code; \
rval.consumed = consumed_myself; \
return rval; \
} while(0)
/*
* The SEQUENCE OF and SET OF values utilize a "quantity field".
* It is is a pointless combination of #8.6 (length determinant, capable
* of encoding tiny and huge numbers in the shortest possible number of octets)
* and the variable sized integer. What could have been encoded by #8.6 alone
* is required to be encoded by #8.6 followed by that number of unsigned octets.
* This doesn't make too much sense. It seems that the original version of OER
* standard have been using the unconstrained unsigned integer as a quantity
* field, and this legacy have gone through ISO/ITU-T standardization process.
*/
static ssize_t
oer_fetch_quantity(const void *ptr, size_t size, size_t *qty_r) {
const uint8_t *b;
const uint8_t *bend;
size_t len = 0;
size_t qty;
ssize_t len_len = oer_fetch_length(ptr, size, &len);
if(len_len <= 0) {
*qty_r = 0;
return len_len;
}
if((len_len + len) > size) {
*qty_r = 0;
return 0;
}
b = (const uint8_t *)ptr + len_len;
bend = b + len;
/* Skip the leading 0-bytes */
for(; b < bend && *b == 0; b++) {
}
if((bend - b) > (ssize_t)sizeof(size_t)) {
/* Length is not representable by the native size_t type */
*qty_r = 0;
return -1;
}
for(qty = 0; b < bend; b++) {
qty = (qty << 8) + *b;
}
if(qty > RSIZE_MAX) { /* A bit of C11 validation */
*qty_r = 0;
return -1;
}
*qty_r = qty;
assert((size_t)len_len + len == (size_t)(bend - (const uint8_t *)ptr));
return len_len + len;
}
asn_dec_rval_t
SET_OF_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, void **struct_ptr,
const void *ptr, size_t size) {
const asn_SET_OF_specifics_t *specs = (const asn_SET_OF_specifics_t *)td->specifics;
asn_dec_rval_t rval = {RC_OK, 0};
void *st = *struct_ptr; /* Target structure */
asn_struct_ctx_t *ctx; /* Decoder context */
size_t consumed_myself = 0; /* Consumed bytes from ptr. */
(void)constraints;
if(ASN__STACK_OVERFLOW_CHECK(opt_codec_ctx))
ASN__DECODE_FAILED;
/*
* Create the target structure if it is not present already.
*/
if(st == 0) {
st = *struct_ptr = CALLOC(1, specs->struct_size);
if(st == 0) {
RETURN(RC_FAIL);
}
}
/*
* Restore parsing context.
*/
ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
/*
* Start to parse where left previously.
*/
switch(ctx->phase) {
case 0: {
/*
* Fetch number of elements to decode.
*/
size_t length = 0;
size_t len_size = oer_fetch_quantity(ptr, size, &length);
switch(len_size) {
case 0:
RETURN(RC_WMORE);
case -1:
RETURN(RC_FAIL);
default:
ADVANCE(len_size);
ctx->left = length;
}
}
NEXT_PHASE(ctx);
/* FALL THROUGH */
case 1: {
/* Decode components of the extension root */
asn_TYPE_member_t *elm = td->elements;
asn_anonymous_set_ *list = _A_SET_FROM_VOID(st);
const void *base_ptr = ptr;
ber_tlv_len_t base_ctx_left = ctx->left;
assert(td->elements_count == 1);
ASN_DEBUG("OER SET OF %s Decoding PHASE 1", td->name);
for(; ctx->left > 0; ctx->left--) {
asn_dec_rval_t rv = elm->type->op->oer_decoder(
opt_codec_ctx, elm->type,
elm->encoding_constraints.oer_constraints, &ctx->ptr, ptr,
size);
ADVANCE(rv.consumed);
switch(rv.code) {
case RC_OK:
if(ASN_SET_ADD(list, ctx->ptr) != 0) {
RETURN(RC_FAIL);
} else {
ctx->ptr = 0;
/*
* This check is to avoid compression bomb with
* specs like SEQUENCE/SET OF NULL which don't
* consume data at all.
*/
if(rv.consumed == 0 && base_ptr == ptr
&& (base_ctx_left - ctx->left) > 200) {
ASN__DECODE_FAILED;
}
break;
}
case RC_WMORE:
RETURN(RC_WMORE);
case RC_FAIL:
ASN_STRUCT_FREE(*elm->type, ctx->ptr);
ctx->ptr = 0;
SET_PHASE(ctx, 3);
RETURN(RC_FAIL);
}
}
/* Decoded decently. */
NEXT_PHASE(ctx);
}
/* Fall through */
case 2:
/* Ignore fully decoded */
assert(ctx->left == 0);
RETURN(RC_OK);
case 3:
/* Failed to decode. */
RETURN(RC_FAIL);
}
return rval;
}
static ssize_t
oer_put_quantity(size_t qty, asn_app_consume_bytes_f *cb, void *app_key) {
uint8_t buf[1 + sizeof(size_t)];
uint8_t *b = &buf[sizeof(size_t)]; /* Last addressable */
size_t encoded;
do {
*b-- = qty;
qty >>= 8;
} while(qty);
*b = sizeof(buf) - (b-buf) - 1;
encoded = sizeof(buf) - (b-buf);
if(cb(b, encoded, app_key) < 0)
return -1;
return encoded;
}
/*
* Encode as Canonical OER.
*/
asn_enc_rval_t
SET_OF_encode_oer(const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, const void *sptr,
asn_app_consume_bytes_f *cb, void *app_key) {
const asn_TYPE_member_t *elm;
const asn_anonymous_set_ *list;
size_t computed_size = 0;
ssize_t qty_len;
int n;
(void)constraints;
if(!sptr) ASN__ENCODE_FAILED;
elm = td->elements;
list = _A_CSET_FROM_VOID(sptr);
qty_len = oer_put_quantity(list->count, cb, app_key);
if(qty_len < 0) {
ASN__ENCODE_FAILED;
}
computed_size += qty_len;
for(n = 0; n < list->count; n++) {
void *memb_ptr = list->array[n];
asn_enc_rval_t er;
er = elm->type->op->oer_encoder(
elm->type, elm->encoding_constraints.oer_constraints, memb_ptr, cb,
app_key);
if(er.encoded < 0) {
return er;
} else {
computed_size += er.encoded;
}
}
{
asn_enc_rval_t erval;
erval.encoded = computed_size;
ASN__ENCODED_OK(erval);
}
}
#endif /* ASN_DISABLE_OER_SUPPORT */
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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <constr_TYPE.h>
#include <errno.h>
/*
* Version of the ASN.1 infrastructure shipped with compiler.
*/
int get_asn1c_environment_version() { return ASN1C_ENVIRONMENT_VERSION; }
static asn_app_consume_bytes_f _print2fp;
/*
* Return the outmost tag of the type.
*/
ber_tlv_tag_t
asn_TYPE_outmost_tag(const asn_TYPE_descriptor_t *type_descriptor,
const void *struct_ptr, int tag_mode, ber_tlv_tag_t tag) {
if(tag_mode)
return tag;
if(type_descriptor->tags_count)
return type_descriptor->tags[0];
return type_descriptor->op->outmost_tag(type_descriptor, struct_ptr, 0, 0);
}
/*
* Print the target language's structure in human readable form.
*/
int
asn_fprint(FILE *stream, const asn_TYPE_descriptor_t *td,
const void *struct_ptr) {
if(!stream) stream = stdout;
if(!td || !struct_ptr) {
errno = EINVAL;
return -1;
}
/* Invoke type-specific printer */
if(td->op->print_struct(td, struct_ptr, 1, _print2fp, stream)) {
return -1;
}
/* Terminate the output */
if(_print2fp("\n", 1, stream)) {
return -1;
}
return fflush(stream);
}
/* Dump the data into the specified stdio stream */
static int
_print2fp(const void *buffer, size_t size, void *app_key) {
FILE *stream = (FILE *)app_key;
if(fwrite(buffer, 1, size, stream) != size)
return -1;
return 0;
}
/*
* Some compilers do not support variable args macros.
* This function is a replacement of ASN_DEBUG() macro.
*/
void ASN_DEBUG_f(const char *fmt, ...);
void ASN_DEBUG_f(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
va_end(ap);
}
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/*
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
/*
* This file contains the declaration structure called "ASN.1 Type Definition",
* which holds all information necessary for encoding and decoding routines.
* This structure even contains pointer to these encoding and decoding routines
* for each defined ASN.1 type.
*/
#ifndef _CONSTR_TYPE_H_
#define _CONSTR_TYPE_H_
#include <ber_tlv_length.h>
#include <ber_tlv_tag.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
struct asn_TYPE_member_s; /* Forward declaration */
/*
* This type provides the context information for various ASN.1 routines,
* primarily ones doing decoding. A member _asn_ctx of this type must be
* included into certain target language's structures, such as compound types.
*/
typedef struct asn_struct_ctx_s {
short phase; /* Decoding phase */
short step; /* Elementary step of a phase */
int context; /* Other context information */
void *ptr; /* Decoder-specific stuff (stack elements) */
ber_tlv_len_t left; /* Number of bytes left, -1 for indefinite */
} asn_struct_ctx_t;
#include <ber_decoder.h> /* Basic Encoding Rules decoder */
#include <der_encoder.h> /* Distinguished Encoding Rules encoder */
#include <xer_decoder.h> /* Decoder of XER (XML, text) */
#include <xer_encoder.h> /* Encoder into XER (XML, text) */
#include <per_decoder.h> /* Packet Encoding Rules decoder */
#include <per_encoder.h> /* Packet Encoding Rules encoder */
#include <constraints.h> /* Subtype constraints support */
#include <asn_random_fill.h> /* Random structures support */
#ifdef ASN_DISABLE_OER_SUPPORT
typedef void (oer_type_decoder_f)();
typedef void (oer_type_encoder_f)();
typedef void asn_oer_constraints_t;
#else
#include <oer_decoder.h> /* Octet Encoding Rules encoder */
#include <oer_encoder.h> /* Octet Encoding Rules encoder */
#endif
/*
* Free the structure according to its specification.
* Use one of ASN_STRUCT_{FREE,RESET,CONTENTS_ONLY} macros instead.
* Do not use directly.
*/
enum asn_struct_free_method {
ASFM_FREE_EVERYTHING, /* free(struct_ptr) and underlying members */
ASFM_FREE_UNDERLYING, /* free underlying members */
ASFM_FREE_UNDERLYING_AND_RESET /* FREE_UNDERLYING + memset(0) */
};
typedef void (asn_struct_free_f)(
const struct asn_TYPE_descriptor_s *type_descriptor,
void *struct_ptr, enum asn_struct_free_method);
/*
* Free the structure including freeing the memory pointed to by ptr itself.
*/
#define ASN_STRUCT_FREE(asn_DEF, ptr) \
(asn_DEF).op->free_struct(&(asn_DEF), (ptr), ASFM_FREE_EVERYTHING)
/*
* Free the memory used by the members of the structure without freeing the
* the structure pointer itself.
* ZERO-OUT the structure to the safe clean state.
* (Retaining the pointer may be useful in case the structure is allocated
* statically or arranged on the stack, yet its elements are dynamic.)
*/
#define ASN_STRUCT_RESET(asn_DEF, ptr) \
(asn_DEF).op->free_struct(&(asn_DEF), (ptr), ASFM_FREE_UNDERLYING_AND_RESET)
/*
* Free memory used by the members of the structure without freeing
* the structure pointer itself.
* (Retaining the pointer may be useful in case the structure is allocated
* statically or arranged on the stack, yet its elements are dynamic.)
* AVOID using it in the application code;
* Use a safer ASN_STRUCT_RESET() instead.
*/
#define ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF, ptr) \
(asn_DEF).op->free_struct(&(asn_DEF), (ptr), ASFM_FREE_UNDERLYING)
/*
* Print the structure according to its specification.
*/
typedef int(asn_struct_print_f)(
const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr,
int level, /* Indentation level */
asn_app_consume_bytes_f *callback, void *app_key);
/*
* Compare two structs between each other.
* Returns <0 if struct_A is "smaller" than struct_B, >0 if "greater",
* and =0 if "equal to", for some type-specific, stable definition of
* "smaller", "greater" and "equal to".
*/
typedef int (asn_struct_compare_f)(
const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_A,
const void *struct_B);
/*
* Return the outmost tag of the type.
* If the type is untagged CHOICE, the dynamic operation is performed.
* NOTE: This function pointer type is only useful internally.
* Do not use it in your application.
*/
typedef ber_tlv_tag_t (asn_outmost_tag_f)(
const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr, int tag_mode, ber_tlv_tag_t tag);
/* The instance of the above function type; used internally. */
asn_outmost_tag_f asn_TYPE_outmost_tag;
/*
* Fetch the desired type of the Open Type based on the
* Information Object Set driven constraints.
*/
typedef struct asn_type_selector_result_s {
const struct asn_TYPE_descriptor_s *type_descriptor; /* Type encoded. */
unsigned presence_index; /* Associated choice variant. */
} asn_type_selector_result_t;
typedef asn_type_selector_result_t(asn_type_selector_f)(
const struct asn_TYPE_descriptor_s *parent_type_descriptor,
const void *parent_structure_ptr);
/*
* Generalized functions for dealing with the speciic type.
* May be directly invoked by applications.
*/
typedef struct asn_TYPE_operation_s {
asn_struct_free_f *free_struct; /* Free the structure */
asn_struct_print_f *print_struct; /* Human readable output */
asn_struct_compare_f *compare_struct; /* Compare two structures */
ber_type_decoder_f *ber_decoder; /* Generic BER decoder */
der_type_encoder_f *der_encoder; /* Canonical DER encoder */
xer_type_decoder_f *xer_decoder; /* Generic XER decoder */
xer_type_encoder_f *xer_encoder; /* [Canonical] XER encoder */
oer_type_decoder_f *oer_decoder; /* Generic OER decoder */
oer_type_encoder_f *oer_encoder; /* Canonical OER encoder */
per_type_decoder_f *uper_decoder; /* Unaligned PER decoder */
per_type_encoder_f *uper_encoder; /* Unaligned PER encoder */
asn_random_fill_f *random_fill; /* Initialize with a random value */
asn_outmost_tag_f *outmost_tag; /* <optional, internal> */
} asn_TYPE_operation_t;
/*
* A constraints tuple specifying both the OER and PER constraints.
*/
typedef struct asn_encoding_constraints_s {
const struct asn_oer_constraints_s *oer_constraints;
const struct asn_per_constraints_s *per_constraints;
asn_constr_check_f *general_constraints;
} asn_encoding_constraints_t;
/*
* The definitive description of the destination language's structure.
*/
typedef struct asn_TYPE_descriptor_s {
const char *name; /* A name of the ASN.1 type. "" in some cases. */
const char *xml_tag; /* Name used in XML tag */
/*
* Generalized functions for dealing with the specific type.
* May be directly invoked by applications.
*/
asn_TYPE_operation_t *op;
/***********************************************************************
* Internally useful members. Not to be used by applications directly. *
**********************************************************************/
/*
* Tags that are expected to occur.
*/
const ber_tlv_tag_t *tags; /* Effective tags sequence for this type */
unsigned tags_count; /* Number of tags which are expected */
const ber_tlv_tag_t *all_tags; /* Every tag for BER/containment */
unsigned all_tags_count; /* Number of tags */
/* OER, PER, and general constraints */
asn_encoding_constraints_t encoding_constraints;
/*
* An ASN.1 production type members (members of SEQUENCE, SET, CHOICE).
*/
struct asn_TYPE_member_s *elements;
unsigned elements_count;
/*
* Additional information describing the type, used by appropriate
* functions above.
*/
const void *specifics;
} asn_TYPE_descriptor_t;
/*
* This type describes an element of the constructed type,
* i.e. SEQUENCE, SET, CHOICE, etc.
*/
enum asn_TYPE_flags_e {
ATF_NOFLAGS,
ATF_POINTER = 0x01, /* Represented by the pointer */
ATF_OPEN_TYPE = 0x02, /* Open Type */
ATF_ANY_TYPE = 0x04 /* ANY type (deprecated!) */
};
typedef struct asn_TYPE_member_s {
enum asn_TYPE_flags_e flags; /* Element's presentation flags */
unsigned optional; /* Following optional members, including current */
unsigned memb_offset; /* Offset of the element */
ber_tlv_tag_t tag; /* Outmost (most immediate) tag */
int tag_mode; /* IMPLICIT/no/EXPLICIT tag at current level */
asn_TYPE_descriptor_t *type; /* Member type descriptor */
asn_type_selector_f *type_selector; /* IoS runtime type selector */
asn_encoding_constraints_t encoding_constraints;
int (*default_value_cmp)(const void *sptr); /* Compare DEFAULT <value> */
int (*default_value_set)(void **sptr); /* Set DEFAULT <value> */
const char *name; /* ASN.1 identifier of the element */
} asn_TYPE_member_t;
/*
* BER tag to element number mapping.
*/
typedef struct asn_TYPE_tag2member_s {
ber_tlv_tag_t el_tag; /* Outmost tag of the member */
unsigned el_no; /* Index of the associated member, base 0 */
int toff_first; /* First occurence of the el_tag, relative */
int toff_last; /* Last occurence of the el_tag, relative */
} asn_TYPE_tag2member_t;
/*
* This function prints out the contents of the target language's structure
* (struct_ptr) into the file pointer (stream) in human readable form.
* RETURN VALUES:
* 0: The structure is printed.
* -1: Problem dumping the structure.
* (See also xer_fprint() in xer_encoder.h)
*/
int asn_fprint(FILE *stream, /* Destination stream descriptor */
const asn_TYPE_descriptor_t *td, /* ASN.1 type descriptor */
const void *struct_ptr); /* Structure to be printed */
#ifdef __cplusplus
}
#endif
#endif /* _CONSTR_TYPE_H_ */
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#include <asn_internal.h>
#include <constraints.h>
int
asn_generic_no_constraint(const asn_TYPE_descriptor_t *type_descriptor,
const void *struct_ptr,
asn_app_constraint_failed_f *cb, void *key) {
(void)type_descriptor; /* Unused argument */
(void)struct_ptr; /* Unused argument */
(void)cb; /* Unused argument */
(void)key; /* Unused argument */
/* Nothing to check */
return 0;
}
int
asn_generic_unknown_constraint(const asn_TYPE_descriptor_t *type_descriptor,
const void *struct_ptr,
asn_app_constraint_failed_f *cb, void *key) {
(void)type_descriptor; /* Unused argument */
(void)struct_ptr; /* Unused argument */
(void)cb; /* Unused argument */
(void)key; /* Unused argument */
/* Unknown how to check */
return 0;
}
struct errbufDesc {
const asn_TYPE_descriptor_t *failed_type;
const void *failed_struct_ptr;
char *errbuf;
size_t errlen;
};
static void
_asn_i_ctfailcb(void *key, const asn_TYPE_descriptor_t *td, const void *sptr,
const char *fmt, ...) {
struct errbufDesc *arg = key;
va_list ap;
ssize_t vlen;
ssize_t maxlen;
arg->failed_type = td;
arg->failed_struct_ptr = sptr;
maxlen = arg->errlen;
if(maxlen <= 0)
return;
va_start(ap, fmt);
vlen = vsnprintf(arg->errbuf, maxlen, fmt, ap);
va_end(ap);
if(vlen >= maxlen) {
arg->errbuf[maxlen-1] = '\0'; /* Ensuring libc correctness */
arg->errlen = maxlen - 1; /* Not counting termination */
return;
} else if(vlen >= 0) {
arg->errbuf[vlen] = '\0'; /* Ensuring libc correctness */
arg->errlen = vlen; /* Not counting termination */
} else {
/*
* The libc on this system is broken.
*/
vlen = sizeof("<broken vsnprintf>") - 1;
maxlen--;
arg->errlen = vlen < maxlen ? vlen : maxlen;
memcpy(arg->errbuf, "<broken vsnprintf>", arg->errlen);
arg->errbuf[arg->errlen] = 0;
}
return;
}
int
asn_check_constraints(const asn_TYPE_descriptor_t *type_descriptor,
const void *struct_ptr, char *errbuf, size_t *errlen) {
struct errbufDesc arg;
int ret;
arg.failed_type = 0;
arg.failed_struct_ptr = 0;
arg.errbuf = errbuf;
arg.errlen = errlen ? *errlen : 0;
ret = type_descriptor->encoding_constraints.general_constraints(
type_descriptor, struct_ptr, _asn_i_ctfailcb, &arg);
if(ret == -1 && errlen) *errlen = arg.errlen;
return ret;
}
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/*-
* Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef ASN1_CONSTRAINTS_VALIDATOR_H
#define ASN1_CONSTRAINTS_VALIDATOR_H
#include <asn_system.h> /* Platform-dependent types */
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* Validate the structure according to the ASN.1 constraints.
* If errbuf and errlen are given, they shall be pointing to the appropriate
* buffer space and its length before calling this function. Alternatively,
* they could be passed as NULL's. If constraints validation fails,
* errlen will contain the actual number of bytes taken from the errbuf
* to encode an error message (properly 0-terminated).
*
* RETURN VALUES:
* This function returns 0 in case all ASN.1 constraints are met
* and -1 if one or more constraints were failed.
*/
int asn_check_constraints(
const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr, /* Target language's structure */
char *errbuf, /* Returned error description */
size_t *errlen /* Length of the error description */
);
/*
* Generic type for constraint checking callback,
* associated with every type descriptor.
*/
typedef int(asn_constr_check_f)(
const struct asn_TYPE_descriptor_s *type_descriptor, const void *struct_ptr,
asn_app_constraint_failed_f *optional_callback, /* Log the error */
void *optional_app_key /* Opaque key passed to a callback */
);
/*******************************
* INTERNALLY USEFUL FUNCTIONS *
*******************************/
asn_constr_check_f asn_generic_no_constraint; /* No constraint whatsoever */
asn_constr_check_f asn_generic_unknown_constraint; /* Not fully supported */
/*
* Invoke the callback with a complete error message.
*/
#define ASN__CTFAIL if(ctfailcb) ctfailcb
#ifdef __cplusplus
}
#endif
#endif /* ASN1_CONSTRAINTS_VALIDATOR_H */
File diff suppressed because it is too large Load Diff
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include Makefile.am.libasncodec
LIBS += -lm
CFLAGS += $(ASN_MODULE_CFLAGS) -DASN_PDU_COLLECTION -I.
ASN_LIBRARY ?= libasncodec.a
ASN_PROGRAM ?= converter-example
ASN_PROGRAM_SRCS ?= \
converter-example.c\
pdu_collection.c
all: $(ASN_PROGRAM)
$(ASN_PROGRAM): $(ASN_LIBRARY) $(ASN_PROGRAM_SRCS:.c=.o)
$(CC) $(CFLAGS) $(CPPFLAGS) -o $(ASN_PROGRAM) $(ASN_PROGRAM_SRCS:.c=.o) $(LDFLAGS) $(ASN_LIBRARY) $(LIBS)
$(ASN_LIBRARY): $(ASN_MODULE_SRCS:.c=.o)
$(AR) rcs $@ $(ASN_MODULE_SRCS:.c=.o)
.SUFFIXES:
.SUFFIXES: .c .o
.c.o:
$(CC) $(CFLAGS) -o $@ -c $<
clean:
rm -f $(ASN_PROGRAM) $(ASN_LIBRARY)
rm -f $(ASN_MODULE_SRCS:.c=.o) $(ASN_PROGRAM_SRCS:.c=.o)
regen: regenerate-from-asn1-source
regenerate-from-asn1-source:
asn1c -fnative-types ASN1PayloadStructure
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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <errno.h>
static ssize_t der_write_TL(ber_tlv_tag_t tag, ber_tlv_len_t len,
asn_app_consume_bytes_f *cb, void *app_key, int constructed);
/*
* The DER encoder of any type.
*/
asn_enc_rval_t
der_encode(const asn_TYPE_descriptor_t *type_descriptor, const void *struct_ptr,
asn_app_consume_bytes_f *consume_bytes, void *app_key) {
ASN_DEBUG("DER encoder invoked for %s",
type_descriptor->name);
/*
* Invoke type-specific encoder.
*/
return type_descriptor->op->der_encoder(
type_descriptor, struct_ptr, /* Pointer to the destination structure */
0, 0, consume_bytes, app_key);
}
/*
* Argument type and callback necessary for der_encode_to_buffer().
*/
typedef struct enc_to_buf_arg {
void *buffer;
size_t left;
} enc_to_buf_arg;
static int encode_to_buffer_cb(const void *buffer, size_t size, void *key) {
enc_to_buf_arg *arg = (enc_to_buf_arg *)key;
if(arg->left < size)
return -1; /* Data exceeds the available buffer size */
memcpy(arg->buffer, buffer, size);
arg->buffer = ((char *)arg->buffer) + size;
arg->left -= size;
return 0;
}
/*
* A variant of the der_encode() which encodes the data into the provided buffer
*/
asn_enc_rval_t
der_encode_to_buffer(const asn_TYPE_descriptor_t *type_descriptor,
const void *struct_ptr, void *buffer, size_t buffer_size) {
enc_to_buf_arg arg;
asn_enc_rval_t ec;
arg.buffer = buffer;
arg.left = buffer_size;
ec = type_descriptor->op->der_encoder(type_descriptor,
struct_ptr, /* Pointer to the destination structure */
0, 0, encode_to_buffer_cb, &arg);
if(ec.encoded != -1) {
assert(ec.encoded == (ssize_t)(buffer_size - arg.left));
/* Return the encoded contents size */
}
return ec;
}
/*
* Write out leading TL[v] sequence according to the type definition.
*/
ssize_t
der_write_tags(const asn_TYPE_descriptor_t *sd, size_t struct_length,
int tag_mode, int last_tag_form,
ber_tlv_tag_t tag, /* EXPLICIT or IMPLICIT tag */
asn_app_consume_bytes_f *cb, void *app_key) {
#define ASN1_DER_MAX_TAGS_COUNT 4
ber_tlv_tag_t
tags_buf_scratch[ASN1_DER_MAX_TAGS_COUNT * sizeof(ber_tlv_tag_t)];
ssize_t lens[ASN1_DER_MAX_TAGS_COUNT * sizeof(ssize_t)];
const ber_tlv_tag_t *tags; /* Copy of tags stream */
int tags_count; /* Number of tags */
size_t overall_length;
int i;
ASN_DEBUG("Writing tags (%s, tm=%d, tc=%d, tag=%s, mtc=%d)",
sd->name, tag_mode, sd->tags_count,
ber_tlv_tag_string(tag),
tag_mode
?(sd->tags_count+1
-((tag_mode == -1) && sd->tags_count))
:sd->tags_count
);
if(sd->tags_count + 1 > ASN1_DER_MAX_TAGS_COUNT) {
ASN_DEBUG("System limit %d on tags count", ASN1_DER_MAX_TAGS_COUNT);
return -1;
}
if(tag_mode) {
/*
* Instead of doing shaman dance like we do in ber_check_tags(),
* allocate a small array on the stack
* and initialize it appropriately.
*/
int stag_offset;
ber_tlv_tag_t *tags_buf = tags_buf_scratch;
tags_count = sd->tags_count
+ 1 /* EXPLICIT or IMPLICIT tag is given */
- ((tag_mode == -1) && sd->tags_count);
/* Copy tags over */
tags_buf[0] = tag;
stag_offset = -1 + ((tag_mode == -1) && sd->tags_count);
for(i = 1; i < tags_count; i++)
tags_buf[i] = sd->tags[i + stag_offset];
tags = tags_buf;
} else {
tags = sd->tags;
tags_count = sd->tags_count;
}
/* No tags to write */
if(tags_count == 0)
return 0;
/*
* Array of tags is initialized.
* Now, compute the size of the TLV pairs, from right to left.
*/
overall_length = struct_length;
for(i = tags_count - 1; i >= 0; --i) {
lens[i] = der_write_TL(tags[i], overall_length, 0, 0, 0);
if(lens[i] == -1) return -1;
overall_length += lens[i];
lens[i] = overall_length - lens[i];
}
if(!cb) return overall_length - struct_length;
ASN_DEBUG("Encoding %s TL sequence (%d elements)", sd->name,
tags_count);
/*
* Encode the TL sequence for real.
*/
for(i = 0; i < tags_count; i++) {
ssize_t len;
int _constr;
/* Check if this tag happens to be constructed */
_constr = (last_tag_form || i < (tags_count - 1));
len = der_write_TL(tags[i], lens[i], cb, app_key, _constr);
if(len == -1) return -1;
}
return overall_length - struct_length;
}
static ssize_t
der_write_TL(ber_tlv_tag_t tag, ber_tlv_len_t len,
asn_app_consume_bytes_f *cb, void *app_key,
int constructed) {
uint8_t buf[32];
size_t size = 0;
int buf_size = cb?sizeof(buf):0;
ssize_t tmp;
/* Serialize tag (T from TLV) into possibly zero-length buffer */
tmp = ber_tlv_tag_serialize(tag, buf, buf_size);
if(tmp == -1 || tmp > (ssize_t)sizeof(buf)) return -1;
size += tmp;
/* Serialize length (L from TLV) into possibly zero-length buffer */
tmp = der_tlv_length_serialize(len, buf+size, buf_size?buf_size-size:0);
if(tmp == -1) return -1;
size += tmp;
if(size > sizeof(buf))
return -1;
/*
* If callback is specified, invoke it, and check its return value.
*/
if(cb) {
if(constructed) *buf |= 0x20;
if(cb(buf, size, app_key) < 0)
return -1;
}
return size;
}
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/*-
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _DER_ENCODER_H_
#define _DER_ENCODER_H_
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* The DER encoder of any type. May be invoked by the application.
* Produces DER- and BER-compliant encoding. (DER is a subset of BER).
*
* NOTE: Use the ber_decode() function (ber_decoder.h) to decode data
* produced by der_encode().
*/
asn_enc_rval_t der_encode(const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr, /* Structure to be encoded */
asn_app_consume_bytes_f *consume_bytes_cb,
void *app_key /* Arbitrary callback argument */
);
/* A variant of der_encode() which encodes data into the pre-allocated buffer */
asn_enc_rval_t der_encode_to_buffer(
const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr, /* Structure to be encoded */
void *buffer, /* Pre-allocated buffer */
size_t buffer_size /* Initial buffer size (maximum) */
);
/*
* Type of the generic DER encoder.
*/
typedef asn_enc_rval_t(der_type_encoder_f)(
const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr, /* Structure to be encoded */
int tag_mode, /* {-1,0,1}: IMPLICIT, no, EXPLICIT */
ber_tlv_tag_t tag, asn_app_consume_bytes_f *consume_bytes_cb, /* Callback */
void *app_key /* Arbitrary callback argument */
);
/*******************************
* INTERNALLY USEFUL FUNCTIONS *
*******************************/
/*
* Write out leading TL[v] sequence according to the type definition.
*/
ssize_t der_write_tags(const struct asn_TYPE_descriptor_s *type_descriptor,
size_t struct_length,
int tag_mode, /* {-1,0,1}: IMPLICIT, no, EXPLICIT */
int last_tag_form, /* {0,!0}: prim, constructed */
ber_tlv_tag_t tag,
asn_app_consume_bytes_f *consume_bytes_cb,
void *app_key);
#ifdef __cplusplus
}
#endif
#endif /* _DER_ENCODER_H_ */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <asn_codecs_prim.h>
/*
* The OER decoder of any type.
*/
asn_dec_rval_t
oer_decode(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *type_descriptor, void **struct_ptr,
const void *ptr, size_t size) {
asn_codec_ctx_t s_codec_ctx;
/*
* Stack checker requires that the codec context
* must be allocated on the stack.
*/
if(opt_codec_ctx) {
if(opt_codec_ctx->max_stack_size) {
s_codec_ctx = *opt_codec_ctx;
opt_codec_ctx = &s_codec_ctx;
}
} else {
/* If context is not given, be security-conscious anyway */
memset(&s_codec_ctx, 0, sizeof(s_codec_ctx));
s_codec_ctx.max_stack_size = ASN__DEFAULT_STACK_MAX;
opt_codec_ctx = &s_codec_ctx;
}
/*
* Invoke type-specific decoder.
*/
return type_descriptor->op->oer_decoder(opt_codec_ctx, type_descriptor, 0,
struct_ptr, /* Pointer to the destination structure */
ptr, size /* Buffer and its size */
);
}
/*
* Open Type is encoded as a length (#8.6) followed by that number of bytes.
* Since we're just skipping, reading the length would be enough.
*/
ssize_t
oer_open_type_skip(const void *bufptr, size_t size) {
size_t len = 0;
return oer_fetch_length(bufptr, size, &len);
}
/*
* Read the Open Type (X.696 (08/2015), #30).
* RETURN VALUES:
* 0: More data expected than bufptr contains.
* -1: Fatal error deciphering length.
* >0: Number of bytes used from bufptr.
*/
ssize_t
oer_open_type_get(const asn_codec_ctx_t *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *td,
const asn_oer_constraints_t *constraints, void **struct_ptr,
const void *bufptr, size_t size) {
asn_dec_rval_t dr;
size_t container_len = 0;
ssize_t len_len;
enum asn_struct_free_method dispose_method =
(*struct_ptr) ? ASFM_FREE_UNDERLYING_AND_RESET : ASFM_FREE_EVERYTHING;
/* Get the size of a length determinant */
len_len = oer_fetch_length(bufptr, size, &container_len);
if(len_len <= 0) {
return len_len; /* Error or more data expected */
}
/*
* len_len can't be bigger than size, but size without len_len
* should be bigger or equal to container length
*/
if(size - len_len < container_len) {
/* More data is expected */
return 0;
}
dr = td->op->oer_decoder(opt_codec_ctx, td, constraints, struct_ptr,
(const uint8_t *)bufptr + len_len, container_len);
if(dr.code == RC_OK) {
return len_len + container_len;
} else {
/* Even if RC_WMORE, we can't get more data into a closed container. */
td->op->free_struct(td, *struct_ptr, dispose_method);
*struct_ptr = NULL;
return -1;
}
}
asn_dec_rval_t
oer_decode_primitive(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, void **sptr,
const void *ptr, size_t size) {
ASN__PRIMITIVE_TYPE_t *st = (ASN__PRIMITIVE_TYPE_t *)*sptr;
asn_dec_rval_t rval = {RC_OK, 0};
size_t expected_length = 0;
ssize_t len_len;
(void)td;
(void)opt_codec_ctx;
(void)constraints;
if(!st) {
st = (ASN__PRIMITIVE_TYPE_t *)(*sptr = CALLOC(
1, sizeof(ASN__PRIMITIVE_TYPE_t)));
if(!st) ASN__DECODE_FAILED;
}
/*
* X.696 (08/2015) #27.2
* Encode length determinant as _number of octets_, but only
* if upper bound is not equal to lower bound.
*/
len_len = oer_fetch_length(ptr, size, &expected_length);
if(len_len > 0) {
rval.consumed = len_len;
ptr = (const char *)ptr + len_len;
size -= len_len;
} else if(len_len == 0) {
ASN__DECODE_STARVED;
} else if(len_len < 0) {
ASN__DECODE_FAILED;
}
if(size < expected_length) {
ASN__DECODE_STARVED;
} else {
uint8_t *buf = MALLOC(expected_length + 1);
if(buf == NULL) {
ASN__DECODE_FAILED;
} else {
memcpy(buf, ptr, expected_length);
buf[expected_length] = '\0';
}
FREEMEM(st->buf);
st->buf = buf;
st->size = expected_length;
rval.consumed += expected_length;
return rval;
}
}
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef OER_DECODER_H
#define OER_DECODER_H
#include <asn_application.h>
#include <oer_support.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
struct asn_codec_ctx_s; /* Forward declaration */
/*
* The Octet Encoding Rules (OER, X.696 08/2015) decoder for any given type.
* This function may be invoked directly by the application.
* Parses CANONICAL-OER and BASIC-OER.
*/
asn_dec_rval_t oer_decode(const struct asn_codec_ctx_s *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor,
void **struct_ptr, /* Pointer to a target structure's pointer */
const void *buffer, /* Data to be decoded */
size_t size /* Size of that buffer */
);
/*
* Type of generic function which decodes the byte stream into the structure.
*/
typedef asn_dec_rval_t(oer_type_decoder_f)(
const struct asn_codec_ctx_s *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor,
const asn_oer_constraints_t *constraints,
void **struct_ptr,
const void *buf_ptr,
size_t size);
/*
* Swallow the Open Type (X.696 (08/2015), #30) into /dev/null.
* RETURN VALUES:
* -1: Fatal error deciphering length.
* 0: More data expected than bufptr contains.
* >0: Number of bytes used from bufptr.
*/
ssize_t oer_open_type_skip(const void *bufptr, size_t size);
/*
* Read the Open Type (X.696 (08/2015), #30).
* RETURN VALUES:
* 0: More data expected than bufptr contains.
* -1: Fatal error deciphering length.
* >0: Number of bytes used from bufptr.
*/
ssize_t oer_open_type_get(const asn_codec_ctx_t *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *td,
const asn_oer_constraints_t *constraints,
void **struct_ptr, const void *bufptr, size_t size);
/*
* Length-prefixed buffer decoding for primitive types.
*/
oer_type_decoder_f oer_decode_primitive;
#ifdef __cplusplus
}
#endif
#endif /* OER_DECODER_H */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <asn_codecs_prim.h>
/*
* The OER encoder of any type.
*/
asn_enc_rval_t
oer_encode(const asn_TYPE_descriptor_t *type_descriptor, const void *struct_ptr,
asn_app_consume_bytes_f *consume_bytes, void *app_key) {
ASN_DEBUG("OER encoder invoked for %s", type_descriptor->name);
/*
* Invoke type-specific encoder.
*/
return type_descriptor->op->oer_encoder(
type_descriptor, 0,
struct_ptr, /* Pointer to the destination structure */
consume_bytes, app_key);
}
/*
* Argument type and callback necessary for oer_encode_to_buffer().
*/
typedef struct enc_to_buf_arg {
void *buffer;
size_t left;
} enc_to_buf_arg;
static int
encode_to_buffer_cb(const void *buffer, size_t size, void *key) {
enc_to_buf_arg *arg = (enc_to_buf_arg *)key;
if(arg->left < size) return -1; /* Data exceeds the available buffer size */
memcpy(arg->buffer, buffer, size);
arg->buffer = ((char *)arg->buffer) + size;
arg->left -= size;
return 0;
}
/*
* A variant of the oer_encode() which encodes the data into the provided buffer
*/
asn_enc_rval_t
oer_encode_to_buffer(const asn_TYPE_descriptor_t *type_descriptor,
const asn_oer_constraints_t *constraints,
const void *struct_ptr, /* Structure to be encoded */
void *buffer, /* Pre-allocated buffer */
size_t buffer_size /* Initial buffer size (maximum) */
) {
enc_to_buf_arg arg;
asn_enc_rval_t ec;
arg.buffer = buffer;
arg.left = buffer_size;
if(type_descriptor->op->oer_encoder == NULL) {
ec.encoded = -1;
ec.failed_type = type_descriptor;
ec.structure_ptr = struct_ptr;
ASN_DEBUG("OER encoder is not defined for %s",
type_descriptor->name);
} else {
ec = type_descriptor->op->oer_encoder(
type_descriptor, constraints,
struct_ptr, /* Pointer to the destination structure */
encode_to_buffer_cb, &arg);
if(ec.encoded != -1) {
assert(ec.encoded == (ssize_t)(buffer_size - arg.left));
/* Return the encoded contents size */
}
}
return ec;
}
asn_enc_rval_t
oer_encode_primitive(const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, const void *sptr,
asn_app_consume_bytes_f *cb, void *app_key) {
const ASN__PRIMITIVE_TYPE_t *st = (const ASN__PRIMITIVE_TYPE_t *)sptr;
asn_enc_rval_t er = {0, 0, 0};
ssize_t ret;
(void)constraints;
if(!st) ASN__ENCODE_FAILED;
ASN_DEBUG("Encoding %s (%" ASN_PRI_SIZE " bytes)", td ? td->name : "", st->size);
/*
* X.696 (08/2015) #27.2
*/
ret = oer_serialize_length(st->size, cb, app_key);
if(ret < 0) {
ASN__ENCODE_FAILED;
}
er.encoded += ret;
er.encoded += st->size;
if(cb(st->buf, st->size, app_key) < 0) {
ASN__ENCODE_FAILED;
} else {
ASN__ENCODED_OK(er);
}
}
static int
oer__count_bytes(const void *buffer, size_t size, void *bytes_ptr) {
size_t *bytes = bytes_ptr;
(void)buffer;
*bytes += size;
return 0;
}
ssize_t
oer_open_type_put(const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, const void *sptr,
asn_app_consume_bytes_f *cb, void *app_key) {
size_t serialized_byte_count = 0;
asn_enc_rval_t er;
ssize_t len_len;
er = td->op->oer_encoder(td, constraints, sptr, oer__count_bytes,
&serialized_byte_count);
if(er.encoded < 0) return -1;
assert(serialized_byte_count == (size_t)er.encoded);
len_len = oer_serialize_length(serialized_byte_count, cb, app_key);
if(len_len == -1) return -1;
er = td->op->oer_encoder(td, constraints, sptr, cb, app_key);
if(er.encoded < 0) return -1;
assert(serialized_byte_count == (size_t)er.encoded);
return len_len + er.encoded;
}
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef OER_ENCODER_H
#define OER_ENCODER_H
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* The Octet Encoding Rules (OER, X.696 08/2015) encoder for any type.
* This function may be invoked directly by the application.
* Produces CANONICAL-OER output compatible with CANONICAL-OER
* and BASIC-OER decoders.
*/
asn_enc_rval_t oer_encode(const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr, /* Structure to be encoded */
asn_app_consume_bytes_f *consume_bytes_cb,
void *app_key /* Arbitrary callback argument */
);
/* A variant of oer_encode() which encodes data into the pre-allocated buffer */
asn_enc_rval_t oer_encode_to_buffer(
const struct asn_TYPE_descriptor_s *type_descriptor,
const asn_oer_constraints_t *constraints,
const void *struct_ptr, /* Structure to be encoded */
void *buffer, /* Pre-allocated buffer */
size_t buffer_size /* Initial buffer size (maximum) */
);
/*
* Type of the generic OER encoder.
*/
typedef asn_enc_rval_t(oer_type_encoder_f)(
const struct asn_TYPE_descriptor_s *type_descriptor,
const asn_oer_constraints_t *constraints,
const void *struct_ptr, /* Structure to be encoded */
asn_app_consume_bytes_f *consume_bytes_cb, /* Callback */
void *app_key /* Arbitrary callback argument */
);
/*
* Write out the Open Type (X.696 (08/2015), #30).
* RETURN VALUES:
* -1: Fatal error encoding the type.
* >0: Number of bytes serialized.
*/
ssize_t oer_open_type_put(const struct asn_TYPE_descriptor_s *td,
const asn_oer_constraints_t *constraints,
const void *struct_ptr,
asn_app_consume_bytes_f *consume_bytes_cb,
void *app_key);
/*
* Length-prefixed buffer encoding for primitive types.
*/
oer_type_encoder_f oer_encode_primitive;
#ifdef __cplusplus
}
#endif
#endif /* OER_ENCODER_H */
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_system.h>
#include <asn_internal.h>
#include <oer_support.h>
/*
* Fetch the length determinant (X.696 08/2015, #8.6) into *len_r.
* RETURN VALUES:
* 0: More data expected than bufptr contains.
* -1: Fatal error deciphering length.
* >0: Number of bytes used from bufptr.
*/
ssize_t
oer_fetch_length(const void *bufptr, size_t size, size_t *len_r) {
uint8_t first_byte;
size_t len_len; /* Length of the length determinant */
const uint8_t *b;
const uint8_t *bend;
size_t len;
if(size == 0) {
*len_r = 0;
return 0;
}
first_byte = *(const uint8_t *)bufptr;
if((first_byte & 0x80) == 0) { /* Short form */
*len_r = first_byte; /* 0..127 */
return 1;
}
len_len = (first_byte & 0x7f);
if((1 + len_len) > size) {
*len_r = 0;
return 0;
}
b = (const uint8_t *)bufptr + 1;
bend = b + len_len;
for(; b < bend && *b == 0; b++) {
/* Skip the leading 0-bytes */
}
if((bend - b) > (ssize_t)sizeof(size_t)) {
/* Length is not representable by the native size_t type */
*len_r = 0;
return -1;
}
for(len = 0; b < bend; b++) {
len = (len << 8) + *b;
}
if(len > RSIZE_MAX) { /* A bit of C11 validation */
*len_r = 0;
return -1;
}
*len_r = len;
assert(len_len + 1 == (size_t)(bend - (const uint8_t *)bufptr));
return len_len + 1;
}
/*
* Serialize OER length. Returns the number of bytes serialized
* or -1 if a given callback returned with negative result.
*/
ssize_t
oer_serialize_length(size_t length, asn_app_consume_bytes_f *cb,
void *app_key) {
uint8_t scratch[1 + sizeof(length)];
uint8_t *sp = scratch;
int littleEndian = 1; /* Run-time detection */
const uint8_t *pstart;
const uint8_t *pend;
const uint8_t *p;
int add;
if(length <= 127) {
uint8_t b = length;
if(cb(&b, 1, app_key) < 0) {
return -1;
}
return 1;
}
if(*(char *)&littleEndian) {
pstart = (const uint8_t *)&length + sizeof(length) - 1;
pend = (const uint8_t *)&length;
add = -1;
} else {
pstart = (const uint8_t *)&length;
pend = pstart + sizeof(length);
add = 1;
}
for(p = pstart; p != pend; p += add) {
/* Skip leading zeros. */
if(*p) break;
}
for(sp = scratch + 1; ; p += add) {
*sp++ = *p;
if(p == pend) break;
}
assert((sp - scratch) - 1 <= 0x7f);
scratch[0] = 0x80 + ((sp - scratch) - 1);
if(cb(scratch, sp - scratch, app_key) < 0) {
return -1;
}
return sp - scratch;
}
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/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef OER_SUPPORT_H
#define OER_SUPPORT_H
#include <asn_system.h> /* Platform-specific types */
#ifdef __cplusplus
extern "C" {
#endif
/*
* Pre-computed OER constraints.
*/
typedef struct asn_oer_constraint_number_s {
unsigned width; /* ±8,4,2,1 fixed bytes */
unsigned positive; /* 1 for unsigned number, 0 for signed */
} asn_oer_constraint_number_t;
typedef struct asn_oer_constraints_s {
asn_oer_constraint_number_t value;
ssize_t size; /* -1 (no constraint) or >= 0 */
} asn_oer_constraints_t;
/*
* Fetch the length determinant (X.696 (08/2015), #8.6) into *len_r.
* RETURN VALUES:
* 0: More data expected than bufptr contains.
* -1: Fatal error deciphering length.
* >0: Number of bytes used from bufptr.
*/
ssize_t oer_fetch_length(const void *bufptr, size_t size, size_t *len_r);
/*
* Serialize OER length. Returns the number of bytes serialized
* or -1 if a given callback returned with negative result.
*/
ssize_t oer_serialize_length(size_t length, asn_app_consume_bytes_f *cb, void *app_key);
#ifdef __cplusplus
}
#endif
#endif /* OER_SUPPORT_H */
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/*
* Generated by asn1c-0.9.29 (http://lionet.info/asn1c)
*/
struct asn_TYPE_descriptor_s; /* Forward declaration */
extern struct asn_TYPE_descriptor_s asn_DEF_Payload;
struct asn_TYPE_descriptor_s *asn_pdu_collection[] = {
/* From module ReceiptModule in ASN1PayloadStructure */
&asn_DEF_Payload,
0
};
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#include <asn_application.h>
#include <asn_internal.h>
#include <per_decoder.h>
/*
* Decode a "Production of a complete encoding", X.691#10.1.
* The complete encoding contains at least one byte, and is an integral
* multiple of 8 bytes.
*/
asn_dec_rval_t
uper_decode_complete(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void **sptr,
const void *buffer, size_t size) {
asn_dec_rval_t rval;
rval = uper_decode(opt_codec_ctx, td, sptr, buffer, size, 0, 0);
if(rval.consumed) {
/*
* We've always given 8-aligned data,
* so convert bits to integral bytes.
*/
rval.consumed += 7;
rval.consumed >>= 3;
} else if(rval.code == RC_OK) {
if(size) {
if(((const uint8_t *)buffer)[0] == 0) {
rval.consumed = 1; /* 1 byte */
} else {
ASN_DEBUG("Expecting single zeroed byte");
rval.code = RC_FAIL;
}
} else {
/* Must contain at least 8 bits. */
rval.code = RC_WMORE;
}
}
return rval;
}
asn_dec_rval_t
uper_decode(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void **sptr, const void *buffer,
size_t size, int skip_bits, int unused_bits) {
asn_codec_ctx_t s_codec_ctx;
asn_dec_rval_t rval;
asn_per_data_t pd;
if(skip_bits < 0 || skip_bits > 7
|| unused_bits < 0 || unused_bits > 7
|| (unused_bits > 0 && !size))
ASN__DECODE_FAILED;
/*
* Stack checker requires that the codec context
* must be allocated on the stack.
*/
if(opt_codec_ctx) {
if(opt_codec_ctx->max_stack_size) {
s_codec_ctx = *opt_codec_ctx;
opt_codec_ctx = &s_codec_ctx;
}
} else {
/* If context is not given, be security-conscious anyway */
memset(&s_codec_ctx, 0, sizeof(s_codec_ctx));
s_codec_ctx.max_stack_size = ASN__DEFAULT_STACK_MAX;
opt_codec_ctx = &s_codec_ctx;
}
/* Fill in the position indicator */
memset(&pd, 0, sizeof(pd));
pd.buffer = (const uint8_t *)buffer;
pd.nboff = skip_bits;
pd.nbits = 8 * size - unused_bits; /* 8 is CHAR_BIT from <limits.h> */
if(pd.nboff > pd.nbits)
ASN__DECODE_FAILED;
/*
* Invoke type-specific decoder.
*/
if(!td->op->uper_decoder)
ASN__DECODE_FAILED; /* PER is not compiled in */
rval = td->op->uper_decoder(opt_codec_ctx, td, 0, sptr, &pd);
if(rval.code == RC_OK) {
/* Return the number of consumed bits */
rval.consumed = ((pd.buffer - (const uint8_t *)buffer) << 3)
+ pd.nboff - skip_bits;
ASN_DEBUG("PER decoding consumed %ld, counted %ld",
(long)rval.consumed, (long)pd.moved);
assert(rval.consumed == pd.moved);
} else {
/* PER codec is not a restartable */
rval.consumed = 0;
}
return rval;
}
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/*-
* Copyright (c) 2005-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _PER_DECODER_H_
#define _PER_DECODER_H_
#include <asn_application.h>
#include <per_support.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* Unaligned PER decoder of a "complete encoding" as per X.691 (08/2015) #11.1.
* On success, this call always returns (.consumed >= 1), as per #11.1.3.
*/
asn_dec_rval_t uper_decode_complete(
const struct asn_codec_ctx_s *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor, /* Type to decode */
void **struct_ptr, /* Pointer to a target structure's pointer */
const void *buffer, /* Data to be decoded */
size_t size /* Size of data buffer */
);
/*
* Unaligned PER decoder of any ASN.1 type. May be invoked by the application.
* WARNING: This call returns the number of BITS read from the stream. Beware.
*/
asn_dec_rval_t uper_decode(
const struct asn_codec_ctx_s *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor, /* Type to decode */
void **struct_ptr, /* Pointer to a target structure's pointer */
const void *buffer, /* Data to be decoded */
size_t size, /* Size of the input data buffer, in bytes */
int skip_bits, /* Number of unused leading bits, 0..7 */
int unused_bits /* Number of unused tailing bits, 0..7 */
);
/*
* Type of the type-specific PER decoder function.
*/
typedef asn_dec_rval_t(per_type_decoder_f)(
const asn_codec_ctx_t *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor,
const asn_per_constraints_t *constraints, void **struct_ptr,
asn_per_data_t *per_data);
#ifdef __cplusplus
}
#endif
#endif /* _PER_DECODER_H_ */
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#include <asn_application.h>
#include <asn_internal.h>
#include <per_encoder.h>
static int _uper_encode_flush_outp(asn_per_outp_t *po);
static int
ignore_output(const void *data, size_t size, void *app_key) {
(void)data;
(void)size;
(void)app_key;
return 0;
}
asn_enc_rval_t
uper_encode(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints, const void *sptr,
asn_app_consume_bytes_f *cb, void *app_key) {
asn_per_outp_t po;
asn_enc_rval_t er;
/*
* Invoke type-specific encoder.
*/
if(!td || !td->op->uper_encoder)
ASN__ENCODE_FAILED; /* PER is not compiled in */
po.buffer = po.tmpspace;
po.nboff = 0;
po.nbits = 8 * sizeof(po.tmpspace);
po.output = cb ? cb : ignore_output;
po.op_key = app_key;
po.flushed_bytes = 0;
er = td->op->uper_encoder(td, constraints, sptr, &po);
if(er.encoded != -1) {
size_t bits_to_flush;
bits_to_flush = ((po.buffer - po.tmpspace) << 3) + po.nboff;
/* Set number of bits encoded to a firm value */
er.encoded = (po.flushed_bytes << 3) + bits_to_flush;
if(_uper_encode_flush_outp(&po)) ASN__ENCODE_FAILED;
}
return er;
}
/*
* Argument type and callback necessary for uper_encode_to_buffer().
*/
typedef struct enc_to_buf_arg {
void *buffer;
size_t left;
} enc_to_buf_arg;
static int encode_to_buffer_cb(const void *buffer, size_t size, void *key) {
enc_to_buf_arg *arg = (enc_to_buf_arg *)key;
if(arg->left < size)
return -1; /* Data exceeds the available buffer size */
memcpy(arg->buffer, buffer, size);
arg->buffer = ((char *)arg->buffer) + size;
arg->left -= size;
return 0;
}
asn_enc_rval_t
uper_encode_to_buffer(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, void *buffer, size_t buffer_size) {
enc_to_buf_arg key;
key.buffer = buffer;
key.left = buffer_size;
if(td) ASN_DEBUG("Encoding \"%s\" using UNALIGNED PER", td->name);
return uper_encode(td, constraints, sptr, encode_to_buffer_cb, &key);
}
typedef struct enc_dyn_arg {
void *buffer;
size_t length;
size_t allocated;
} enc_dyn_arg;
static int
encode_dyn_cb(const void *buffer, size_t size, void *key) {
enc_dyn_arg *arg = key;
if(arg->length + size >= arg->allocated) {
size_t new_size = arg->allocated ? arg->allocated : 8;
void *p;
do {
new_size <<= 2;
} while(arg->length + size >= new_size);
p = REALLOC(arg->buffer, new_size);
if(!p) {
FREEMEM(arg->buffer);
memset(arg, 0, sizeof(*arg));
return -1;
}
arg->buffer = p;
arg->allocated = new_size;
}
memcpy(((char *)arg->buffer) + arg->length, buffer, size);
arg->length += size;
return 0;
}
ssize_t
uper_encode_to_new_buffer(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, void **buffer_r) {
asn_enc_rval_t er;
enc_dyn_arg key;
memset(&key, 0, sizeof(key));
er = uper_encode(td, constraints, sptr, encode_dyn_cb, &key);
switch(er.encoded) {
case -1:
FREEMEM(key.buffer);
return -1;
case 0:
FREEMEM(key.buffer);
key.buffer = MALLOC(1);
if(key.buffer) {
*(char *)key.buffer = '\0';
*buffer_r = key.buffer;
return 1;
} else {
return -1;
}
default:
*buffer_r = key.buffer;
ASN_DEBUG("Complete encoded in %ld bits", (long)er.encoded);
return ((er.encoded + 7) >> 3);
}
}
/*
* Internally useful functions.
*/
/* Flush partially filled buffer */
static int
_uper_encode_flush_outp(asn_per_outp_t *po) {
uint8_t *buf;
if(po->nboff == 0 && po->buffer == po->tmpspace)
return 0;
buf = po->buffer + (po->nboff >> 3);
/* Make sure we account for the last, partially filled */
if(po->nboff & 0x07) {
buf[0] &= 0xff << (8 - (po->nboff & 0x07));
buf++;
}
return po->output(po->tmpspace, buf - po->tmpspace, po->op_key);
}
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/*-
* Copyright (c) 2006-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _PER_ENCODER_H_
#define _PER_ENCODER_H_
#include <asn_application.h>
#include <per_support.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* Unaligned PER encoder of any ASN.1 type. May be invoked by the application.
* WARNING: This function returns the number of encoded bits in the .encoded
* field of the return value. Use the following formula to convert to bytes:
* bytes = ((.encoded + 7) / 8)
*/
asn_enc_rval_t uper_encode(
const struct asn_TYPE_descriptor_s *type_descriptor,
const asn_per_constraints_t *constraints,
const void *struct_ptr, /* Structure to be encoded */
asn_app_consume_bytes_f *consume_bytes_cb, /* Data collector */
void *app_key /* Arbitrary callback argument */
);
/*
* A variant of uper_encode() which encodes data into the existing buffer
* WARNING: This function returns the number of encoded bits in the .encoded
* field of the return value.
*/
asn_enc_rval_t uper_encode_to_buffer(
const struct asn_TYPE_descriptor_s *type_descriptor,
const asn_per_constraints_t *constraints,
const void *struct_ptr, /* Structure to be encoded */
void *buffer, /* Pre-allocated buffer */
size_t buffer_size /* Initial buffer size (max) */
);
/*
* A variant of uper_encode_to_buffer() which allocates buffer itself.
* Returns the number of bytes in the buffer or -1 in case of failure.
* WARNING: This function produces a "Production of the complete encoding",
* with length of at least one octet. Contrast this to precise bit-packing
* encoding of uper_encode() and uper_encode_to_buffer().
*/
ssize_t uper_encode_to_new_buffer(
const struct asn_TYPE_descriptor_s *type_descriptor,
const asn_per_constraints_t *constraints,
const void *struct_ptr, /* Structure to be encoded */
void **buffer_r /* Buffer allocated and returned */
);
/*
* Type of the generic PER encoder function.
*/
typedef asn_enc_rval_t(per_type_encoder_f)(
const struct asn_TYPE_descriptor_s *type_descriptor,
const asn_per_constraints_t *constraints, const void *struct_ptr,
asn_per_outp_t *per_output);
#ifdef __cplusplus
}
#endif
#endif /* _PER_ENCODER_H_ */
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/*
* Copyright (c) 2007 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <per_support.h>
#include <constr_TYPE.h>
#include <per_opentype.h>
typedef struct uper_ugot_key {
asn_per_data_t oldpd; /* Old per data source */
size_t unclaimed;
size_t ot_moved; /* Number of bits moved by OT processing */
int repeat;
} uper_ugot_key;
static int uper_ugot_refill(asn_per_data_t *pd);
static int per_skip_bits(asn_per_data_t *pd, int skip_nbits);
static asn_dec_rval_t uper_sot_suck(const asn_codec_ctx_t *,
const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
void **sptr, asn_per_data_t *pd);
/*
* Encode an "open type field".
* #10.1, #10.2
*/
int
uper_open_type_put(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints, const void *sptr,
asn_per_outp_t *po) {
void *buf;
void *bptr;
ssize_t size;
ASN_DEBUG("Open type put %s ...", td->name);
size = uper_encode_to_new_buffer(td, constraints, sptr, &buf);
if(size <= 0) return -1;
ASN_DEBUG("Open type put %s of length %" ASN_PRI_SSIZE " + overhead (1byte?)", td->name,
size);
bptr = buf;
do {
int need_eom = 0;
ssize_t may_save = uper_put_length(po, size, &need_eom);
ASN_DEBUG("Prepending length %" ASN_PRI_SSIZE
" to %s and allowing to save %" ASN_PRI_SSIZE,
size, td->name, may_save);
if(may_save < 0) break;
if(per_put_many_bits(po, bptr, may_save * 8)) break;
bptr = (char *)bptr + may_save;
size -= may_save;
if(need_eom && uper_put_length(po, 0, 0)) {
FREEMEM(buf);
return -1;
}
} while(size);
FREEMEM(buf);
if(size) return -1;
return 0;
}
static asn_dec_rval_t
uper_open_type_get_simple(const asn_codec_ctx_t *ctx,
const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints, void **sptr,
asn_per_data_t *pd) {
asn_dec_rval_t rv;
ssize_t chunk_bytes;
int repeat;
uint8_t *buf = 0;
size_t bufLen = 0;
size_t bufSize = 0;
asn_per_data_t spd;
size_t padding;
ASN__STACK_OVERFLOW_CHECK(ctx);
ASN_DEBUG("Getting open type %s...", td->name);
do {
chunk_bytes = uper_get_length(pd, -1, 0, &repeat);
if(chunk_bytes < 0) {
FREEMEM(buf);
ASN__DECODE_STARVED;
}
if(bufLen + chunk_bytes > bufSize) {
void *ptr;
bufSize = chunk_bytes + (bufSize << 2);
ptr = REALLOC(buf, bufSize);
if(!ptr) {
FREEMEM(buf);
ASN__DECODE_FAILED;
}
buf = ptr;
}
if(per_get_many_bits(pd, buf + bufLen, 0, chunk_bytes << 3)) {
FREEMEM(buf);
ASN__DECODE_STARVED;
}
bufLen += chunk_bytes;
} while(repeat);
ASN_DEBUG("Getting open type %s encoded in %ld bytes", td->name,
(long)bufLen);
memset(&spd, 0, sizeof(spd));
spd.buffer = buf;
spd.nbits = bufLen << 3;
ASN_DEBUG_INDENT_ADD(+4);
rv = td->op->uper_decoder(ctx, td, constraints, sptr, &spd);
ASN_DEBUG_INDENT_ADD(-4);
if(rv.code == RC_OK) {
/* Check padding validity */
padding = spd.nbits - spd.nboff;
if ((padding < 8 ||
/* X.691#10.1.3 */
(spd.nboff == 0 && spd.nbits == 8 && spd.buffer == buf)) &&
per_get_few_bits(&spd, padding) == 0) {
/* Everything is cool */
FREEMEM(buf);
return rv;
}
FREEMEM(buf);
if(padding >= 8) {
ASN_DEBUG("Too large padding %d in open type", (int)padding);
ASN__DECODE_FAILED;
} else {
ASN_DEBUG("Non-zero padding");
ASN__DECODE_FAILED;
}
} else {
FREEMEM(buf);
/* rv.code could be RC_WMORE, nonsense in this context */
rv.code = RC_FAIL; /* Noone would give us more */
}
return rv;
}
static asn_dec_rval_t CC_NOTUSED
uper_open_type_get_complex(const asn_codec_ctx_t *ctx,
const asn_TYPE_descriptor_t *td,
asn_per_constraints_t *constraints, void **sptr,
asn_per_data_t *pd) {
uper_ugot_key arg;
asn_dec_rval_t rv;
ssize_t padding;
ASN__STACK_OVERFLOW_CHECK(ctx);
ASN_DEBUG("Getting open type %s from %s", td->name,
asn_bit_data_string(pd));
arg.oldpd = *pd;
arg.unclaimed = 0;
arg.ot_moved = 0;
arg.repeat = 1;
pd->refill = uper_ugot_refill;
pd->refill_key = &arg;
pd->nbits = pd->nboff; /* 0 good bits at this point, will refill */
pd->moved = 0; /* This now counts the open type size in bits */
ASN_DEBUG_INDENT_ADD(+4);
rv = td->op->uper_decoder(ctx, td, constraints, sptr, pd);
ASN_DEBUG_INDENT_ADD(-4);
#define UPDRESTOREPD do { \
/* buffer and nboff are valid, preserve them. */ \
pd->nbits = arg.oldpd.nbits - (pd->moved - arg.ot_moved); \
pd->moved = arg.oldpd.moved + (pd->moved - arg.ot_moved); \
pd->refill = arg.oldpd.refill; \
pd->refill_key = arg.oldpd.refill_key; \
} while(0)
if(rv.code != RC_OK) {
UPDRESTOREPD;
return rv;
}
ASN_DEBUG("OpenType %s pd%s old%s unclaimed=%d, repeat=%d", td->name,
asn_bit_data_string(pd),
asn_bit_data_string(&arg.oldpd),
(int)arg.unclaimed, (int)arg.repeat);
padding = pd->moved % 8;
if(padding) {
int32_t pvalue;
if(padding > 7) {
ASN_DEBUG("Too large padding %d in open type",
(int)padding);
rv.code = RC_FAIL;
UPDRESTOREPD;
return rv;
}
padding = 8 - padding;
ASN_DEBUG("Getting padding of %d bits", (int)padding);
pvalue = per_get_few_bits(pd, padding);
switch(pvalue) {
case -1:
ASN_DEBUG("Padding skip failed");
UPDRESTOREPD;
ASN__DECODE_STARVED;
case 0: break;
default:
ASN_DEBUG("Non-blank padding (%d bits 0x%02x)",
(int)padding, (int)pvalue);
UPDRESTOREPD;
ASN__DECODE_FAILED;
}
}
if(pd->nboff != pd->nbits) {
ASN_DEBUG("Open type %s overhead pd%s old%s", td->name,
asn_bit_data_string(pd), asn_bit_data_string(&arg.oldpd));
if(1) {
UPDRESTOREPD;
ASN__DECODE_FAILED;
} else {
arg.unclaimed += pd->nbits - pd->nboff;
}
}
/* Adjust pd back so it points to original data */
UPDRESTOREPD;
/* Skip data not consumed by the decoder */
if(arg.unclaimed) {
ASN_DEBUG("Getting unclaimed %d", (int)arg.unclaimed);
switch(per_skip_bits(pd, arg.unclaimed)) {
case -1:
ASN_DEBUG("Claim of %d failed", (int)arg.unclaimed);
ASN__DECODE_STARVED;
case 0:
ASN_DEBUG("Got claim of %d", (int)arg.unclaimed);
break;
default:
/* Padding must be blank */
ASN_DEBUG("Non-blank unconsumed padding");
ASN__DECODE_FAILED;
}
arg.unclaimed = 0;
}
if(arg.repeat) {
ASN_DEBUG("Not consumed the whole thing");
rv.code = RC_FAIL;
return rv;
}
return rv;
}
asn_dec_rval_t
uper_open_type_get(const asn_codec_ctx_t *ctx, const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints, void **sptr,
asn_per_data_t *pd) {
return uper_open_type_get_simple(ctx, td, constraints, sptr, pd);
}
int
uper_open_type_skip(const asn_codec_ctx_t *ctx, asn_per_data_t *pd) {
asn_TYPE_descriptor_t s_td;
asn_TYPE_operation_t s_op;
asn_dec_rval_t rv;
s_td.name = "<unknown extension>";
s_td.op = &s_op;
s_op.uper_decoder = uper_sot_suck;
rv = uper_open_type_get(ctx, &s_td, 0, 0, pd);
if(rv.code != RC_OK)
return -1;
else
return 0;
}
/*
* Internal functions.
*/
static asn_dec_rval_t
uper_sot_suck(const asn_codec_ctx_t *ctx, const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints, void **sptr,
asn_per_data_t *pd) {
asn_dec_rval_t rv;
(void)ctx;
(void)td;
(void)constraints;
(void)sptr;
while(per_get_few_bits(pd, 24) >= 0);
rv.code = RC_OK;
rv.consumed = pd->moved;
return rv;
}
static int
uper_ugot_refill(asn_per_data_t *pd) {
uper_ugot_key *arg = pd->refill_key;
ssize_t next_chunk_bytes, next_chunk_bits;
ssize_t avail;
asn_per_data_t *oldpd = &arg->oldpd;
ASN_DEBUG("REFILLING pd->moved=%ld, oldpd->moved=%ld",
(long)pd->moved, (long)oldpd->moved);
/* Advance our position to where pd is */
oldpd->buffer = pd->buffer;
oldpd->nboff = pd->nboff;
oldpd->nbits -= pd->moved - arg->ot_moved;
oldpd->moved += pd->moved - arg->ot_moved;
arg->ot_moved = pd->moved;
if(arg->unclaimed) {
/* Refill the container */
if(per_get_few_bits(oldpd, 1))
return -1;
if(oldpd->nboff == 0) {
assert(0);
return -1;
}
pd->buffer = oldpd->buffer;
pd->nboff = oldpd->nboff - 1;
pd->nbits = oldpd->nbits;
ASN_DEBUG("UNCLAIMED <- return from (pd->moved=%ld)",
(long)pd->moved);
return 0;
}
if(!arg->repeat) {
ASN_DEBUG("Want more but refill doesn't have it");
return -1;
}
next_chunk_bytes = uper_get_length(oldpd, -1, 0, &arg->repeat);
ASN_DEBUG("Open type LENGTH %ld bytes at off %ld, repeat %ld",
(long)next_chunk_bytes, (long)oldpd->moved, (long)arg->repeat);
if(next_chunk_bytes < 0) return -1;
if(next_chunk_bytes == 0) {
pd->refill = 0; /* No more refills, naturally */
assert(!arg->repeat); /* Implementation guarantee */
}
next_chunk_bits = next_chunk_bytes << 3;
avail = oldpd->nbits - oldpd->nboff;
if(avail >= next_chunk_bits) {
pd->nbits = oldpd->nboff + next_chunk_bits;
arg->unclaimed = 0;
ASN_DEBUG("!+Parent frame %ld bits, alloting %ld [%ld..%ld] (%ld)",
(long)next_chunk_bits, (long)oldpd->moved,
(long)oldpd->nboff, (long)oldpd->nbits,
(long)(oldpd->nbits - oldpd->nboff));
} else {
pd->nbits = oldpd->nbits;
arg->unclaimed = next_chunk_bits - avail;
ASN_DEBUG("!-Parent frame %ld, require %ld, will claim %ld",
(long)avail, (long)next_chunk_bits,
(long)arg->unclaimed);
}
pd->buffer = oldpd->buffer;
pd->nboff = oldpd->nboff;
ASN_DEBUG("Refilled pd%s old%s",
asn_bit_data_string(pd), asn_bit_data_string(oldpd));
return 0;
}
static int
per_skip_bits(asn_per_data_t *pd, int skip_nbits) {
int hasNonZeroBits = 0;
while(skip_nbits > 0) {
int skip;
/* per_get_few_bits() is more efficient when nbits <= 24 */
if(skip_nbits < 24)
skip = skip_nbits;
else
skip = 24;
skip_nbits -= skip;
switch(per_get_few_bits(pd, skip)) {
case -1: return -1; /* Starving */
case 0: continue; /* Skipped empty space */
default: hasNonZeroBits = 1; continue;
}
}
return hasNonZeroBits;
}
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/*
* Copyright (c) 2007-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _PER_OPENTYPE_H_
#define _PER_OPENTYPE_H_
#ifdef __cplusplus
extern "C" {
#endif
asn_dec_rval_t uper_open_type_get(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
void **sptr, asn_per_data_t *pd);
int uper_open_type_skip(const asn_codec_ctx_t *opt_codec_ctx,
asn_per_data_t *pd);
/*
* X.691 (2015/08), #11.2
* Returns -1 if error is encountered. 0 if all OK.
*/
int uper_open_type_put(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, asn_per_outp_t *po);
#ifdef __cplusplus
}
#endif
#endif /* _PER_OPENTYPE_H_ */
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/*
* Copyright (c) 2005-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_system.h>
#include <asn_internal.h>
#include <per_support.h>
/*
* X.691-201508 #10.9 General rules for encoding a length determinant.
* Get the optionally constrained length "n" from the stream.
*/
ssize_t
uper_get_length(asn_per_data_t *pd, int ebits, size_t lower_bound,
int *repeat) {
ssize_t value;
*repeat = 0;
/* #11.9.4.1 Encoding if constrained (according to effective bits) */
if(ebits >= 0 && ebits <= 16) {
value = per_get_few_bits(pd, ebits);
if(value >= 0) value += lower_bound;
return value;
}
value = per_get_few_bits(pd, 8);
if((value & 0x80) == 0) { /* #11.9.3.6 */
return (value & 0x7F);
} else if((value & 0x40) == 0) { /* #11.9.3.7 */
/* bit 8 ... set to 1 and bit 7 ... set to zero */
value = ((value & 0x3f) << 8) | per_get_few_bits(pd, 8);
return value; /* potential -1 from per_get_few_bits passes through. */
} else if(value < 0) {
ASN_DEBUG("END of stream reached for PER");
return -1;
}
value &= 0x3f; /* this is "m" from X.691, #11.9.3.8 */
if(value < 1 || value > 4) {
return -1; /* Prohibited by #11.9.3.8 */
}
*repeat = 1;
return (16384 * value);
}
/*
* Get the normally small length "n".
* This procedure used to decode length of extensions bit-maps
* for SET and SEQUENCE types.
*/
ssize_t
uper_get_nslength(asn_per_data_t *pd) {
ssize_t length;
ASN_DEBUG("Getting normally small length");
if(per_get_few_bits(pd, 1) == 0) {
length = per_get_few_bits(pd, 6) + 1;
if(length <= 0) return -1;
ASN_DEBUG("l=%d", (int)length);
return length;
} else {
int repeat;
length = uper_get_length(pd, -1, 0, &repeat);
if(length >= 0 && !repeat) return length;
return -1; /* Error, or do not support >16K extensions */
}
}
/*
* Get the normally small non-negative whole number.
* X.691, #10.6
*/
ssize_t
uper_get_nsnnwn(asn_per_data_t *pd) {
ssize_t value;
value = per_get_few_bits(pd, 7);
if(value & 64) { /* implicit (value < 0) */
value &= 63;
value <<= 2;
value |= per_get_few_bits(pd, 2);
if(value & 128) /* implicit (value < 0) */
return -1;
if(value == 0)
return 0;
if(value >= 3)
return -1;
value = per_get_few_bits(pd, 8 * value);
return value;
}
return value;
}
/*
* X.691-11/2008, #11.6
* Encoding of a normally small non-negative whole number
*/
int
uper_put_nsnnwn(asn_per_outp_t *po, int n) {
int bytes;
if(n <= 63) {
if(n < 0) return -1;
return per_put_few_bits(po, n, 7);
}
if(n < 256)
bytes = 1;
else if(n < 65536)
bytes = 2;
else if(n < 256 * 65536)
bytes = 3;
else
return -1; /* This is not a "normally small" value */
if(per_put_few_bits(po, bytes, 8))
return -1;
return per_put_few_bits(po, n, 8 * bytes);
}
/* X.691-2008/11, #11.5.6 -> #11.3 */
int uper_get_constrained_whole_number(asn_per_data_t *pd, unsigned long *out_value, int nbits) {
unsigned long lhalf; /* Lower half of the number*/
long half;
if(nbits <= 31) {
half = per_get_few_bits(pd, nbits);
if(half < 0) return -1;
*out_value = half;
return 0;
}
if((size_t)nbits > 8 * sizeof(*out_value))
return -1; /* RANGE */
half = per_get_few_bits(pd, 31);
if(half < 0) return -1;
if(uper_get_constrained_whole_number(pd, &lhalf, nbits - 31))
return -1;
*out_value = ((unsigned long)half << (nbits - 31)) | lhalf;
return 0;
}
/* X.691-2008/11, #11.5.6 -> #11.3 */
int
uper_put_constrained_whole_number_u(asn_per_outp_t *po, unsigned long v,
int nbits) {
if(nbits <= 31) {
return per_put_few_bits(po, v, nbits);
} else {
/* Put higher portion first, followed by lower 31-bit */
if(uper_put_constrained_whole_number_u(po, v >> 31, nbits - 31))
return -1;
return per_put_few_bits(po, v, 31);
}
}
/*
* X.691 (08/2015) #11.9 "General rules for encoding a length determinant"
* Put the length "n" (or part of it) into the stream.
*/
ssize_t
uper_put_length(asn_per_outp_t *po, size_t length, int *need_eom) {
int dummy = 0;
if(!need_eom) need_eom = &dummy;
if(length <= 127) { /* #11.9.3.6 */
*need_eom = 0;
return per_put_few_bits(po, length, 8)
? -1 : (ssize_t)length;
} else if(length < 16384) { /* #10.9.3.7 */
*need_eom = 0;
return per_put_few_bits(po, length|0x8000, 16)
? -1 : (ssize_t)length;
}
*need_eom = 0 == (length & 16383);
length >>= 14;
if(length > 4) {
*need_eom = 0;
length = 4;
}
return per_put_few_bits(po, 0xC0 | length, 8)
? -1 : (ssize_t)(length << 14);
}
/*
* Put the normally small length "n" into the stream.
* This procedure used to encode length of extensions bit-maps
* for SET and SEQUENCE types.
*/
int
uper_put_nslength(asn_per_outp_t *po, size_t length) {
if(length <= 64) {
/* #11.9.3.4 */
if(length == 0) return -1;
return per_put_few_bits(po, length - 1, 7) ? -1 : 0;
} else {
int need_eom = 0;
if(uper_put_length(po, length, &need_eom) != (ssize_t)length
|| need_eom) {
/* This might happen in case of >16K extensions */
return -1;
}
}
return 0;
}
static int
per__long_range(long lb, long ub, unsigned long *range_r) {
unsigned long bounds_range;
if((ub < 0) == (lb < 0)) {
bounds_range = ub - lb;
} else if(lb < 0) {
assert(ub >= 0);
bounds_range = 1 + ((unsigned long)ub + (unsigned long)-(lb + 1));
} else {
assert(!"Unreachable");
return -1;
}
*range_r = bounds_range;
return 0;
}
int
per_long_range_rebase(long v, long lb, long ub, unsigned long *output) {
unsigned long range;
assert(lb <= ub);
if(v < lb || v > ub || per__long_range(lb, ub, &range) < 0) {
/* Range error. */
return -1;
}
/*
* Fundamentally what we're doing is returning (v-lb).
* However, this triggers undefined behavior when the word width
* of signed (v) is the same as the size of unsigned (*output).
* In practice, it triggers the UndefinedSanitizer. Therefore we shall
* compute the ranges accurately to avoid C's undefined behavior.
*/
if((v < 0) == (lb < 0)) {
*output = v-lb;
return 0;
} else if(v < 0) {
unsigned long rebased = 1 + (unsigned long)-(v+1) + (unsigned long)lb;
assert(rebased <= range); /* By construction */
*output = rebased;
return 0;
} else if(lb < 0) {
unsigned long rebased = 1 + (unsigned long)-(lb+1) + (unsigned long)v;
assert(rebased <= range); /* By construction */
*output = rebased;
return 0;
} else {
assert(!"Unreachable");
return -1;
}
}
int
per_long_range_unrebase(unsigned long inp, long lb, long ub, long *outp) {
unsigned long range;
if(per__long_range(lb, ub, &range) != 0) {
return -1;
}
if(inp > range) {
/*
* We can encode something in the given number of bits that technically
* exceeds the range. This is an avenue for security errors,
* so we don't allow that.
*/
return -1;
}
if(inp <= LONG_MAX) {
*outp = (long)inp + lb;
} else {
*outp = (lb + LONG_MAX + 1) + (long)((inp - LONG_MAX) - 1);
}
return 0;
}
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/*
* Copyright (c) 2005-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _PER_SUPPORT_H_
#define _PER_SUPPORT_H_
#include <asn_system.h> /* Platform-specific types */
#include <asn_bit_data.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Pre-computed PER constraints.
*/
typedef struct asn_per_constraint_s {
enum asn_per_constraint_flags {
APC_UNCONSTRAINED = 0x0, /* No PER visible constraints */
APC_SEMI_CONSTRAINED = 0x1, /* Constrained at "lb" */
APC_CONSTRAINED = 0x2, /* Fully constrained */
APC_EXTENSIBLE = 0x4 /* May have extension */
} flags;
int range_bits; /* Full number of bits in the range */
int effective_bits; /* Effective bits */
long lower_bound; /* "lb" value */
long upper_bound; /* "ub" value */
} asn_per_constraint_t;
typedef struct asn_per_constraints_s {
asn_per_constraint_t value;
asn_per_constraint_t size;
int (*value2code)(unsigned int value);
int (*code2value)(unsigned int code);
} asn_per_constraints_t;
/* Temporary compatibility layer. Will get removed. */
typedef struct asn_bit_data_s asn_per_data_t;
#define per_get_few_bits(data, bits) asn_get_few_bits(data, bits)
#define per_get_undo(data, bits) asn_get_undo(data, bits)
#define per_get_many_bits(data, dst, align, bits) \
asn_get_many_bits(data, dst, align, bits)
/*
* X.691 (08/2015) #11.9 "General rules for encoding a length determinant"
* Get the length "n" from the Unaligned PER stream.
*/
ssize_t uper_get_length(asn_per_data_t *pd, int effective_bound_bits,
size_t lower_bound, int *repeat);
/*
* Get the normally small length "n".
*/
ssize_t uper_get_nslength(asn_per_data_t *pd);
/*
* Get the normally small non-negative whole number.
*/
ssize_t uper_get_nsnnwn(asn_per_data_t *pd);
/* X.691-2008/11, #11.5.6 */
int uper_get_constrained_whole_number(asn_per_data_t *pd, unsigned long *v, int nbits);
/* Temporary compatibility layer. Will get removed. */
typedef struct asn_bit_outp_s asn_per_outp_t;
#define per_put_few_bits(out, bits, obits) asn_put_few_bits(out, bits, obits)
#define per_put_many_bits(out, src, nbits) asn_put_many_bits(out, src, nbits)
#define per_put_aligned_flush(out) asn_put_aligned_flush(out)
/*
* Rebase the given value as an offset into the range specified by the
* lower bound (lb) and upper bound (ub).
* RETURN VALUES:
* -1: Conversion failed due to range problems.
* 0: Conversion was successful.
*/
int per_long_range_rebase(long v, long lb, long ub, unsigned long *output);
/* The inverse operation: restores the value by the offset and its bounds. */
int per_long_range_unrebase(unsigned long inp, long lb, long ub, long *outp);
/* X.691-2008/11, #11.5 */
int uper_put_constrained_whole_number_u(asn_per_outp_t *po, unsigned long v, int nbits);
/*
* X.691 (08/2015) #11.9 "General rules for encoding a length determinant"
* Put the length "whole_length" to the Unaligned PER stream.
* If (opt_need_eom) is given, it will be set to 1 if final 0-length is needed.
* In that case, invoke uper_put_length(po, 0, 0) after encoding the last block.
* This function returns the number of units which may be flushed
* in the next units saving iteration.
*/
ssize_t uper_put_length(asn_per_outp_t *po, size_t whole_length,
int *opt_need_eom);
/*
* Put the normally small length "n" to the Unaligned PER stream.
* Returns 0 or -1.
*/
int uper_put_nslength(asn_per_outp_t *po, size_t length);
/*
* Put the normally small non-negative whole number.
*/
int uper_put_nsnnwn(asn_per_outp_t *po, int n);
#ifdef __cplusplus
}
#endif
#endif /* _PER_SUPPORT_H_ */
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/*
* Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_application.h>
#include <asn_internal.h>
#include <xer_support.h> /* XER/XML parsing support */
/*
* Decode the XER encoding of a given type.
*/
asn_dec_rval_t
xer_decode(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void **struct_ptr,
const void *buffer, size_t size) {
asn_codec_ctx_t s_codec_ctx;
/*
* Stack checker requires that the codec context
* must be allocated on the stack.
*/
if(opt_codec_ctx) {
if(opt_codec_ctx->max_stack_size) {
s_codec_ctx = *opt_codec_ctx;
opt_codec_ctx = &s_codec_ctx;
}
} else {
/* If context is not given, be security-conscious anyway */
memset(&s_codec_ctx, 0, sizeof(s_codec_ctx));
s_codec_ctx.max_stack_size = ASN__DEFAULT_STACK_MAX;
opt_codec_ctx = &s_codec_ctx;
}
/*
* Invoke type-specific decoder.
*/
return td->op->xer_decoder(opt_codec_ctx, td, struct_ptr, 0, buffer, size);
}
struct xer__cb_arg {
pxml_chunk_type_e chunk_type;
size_t chunk_size;
const void *chunk_buf;
int callback_not_invoked;
};
static int
xer__token_cb(pxml_chunk_type_e type, const void *_chunk_data, size_t _chunk_size, void *key) {
struct xer__cb_arg *arg = (struct xer__cb_arg *)key;
arg->chunk_type = type;
arg->chunk_size = _chunk_size;
arg->chunk_buf = _chunk_data;
arg->callback_not_invoked = 0;
return -1; /* Terminate the XML parsing */
}
/*
* Fetch the next token from the XER/XML stream.
*/
ssize_t
xer_next_token(int *stateContext, const void *buffer, size_t size, pxer_chunk_type_e *ch_type) {
struct xer__cb_arg arg;
int new_stateContext = *stateContext;
ssize_t ret;
arg.callback_not_invoked = 1;
ret = pxml_parse(&new_stateContext, buffer, size, xer__token_cb, &arg);
if(ret < 0) return -1;
if(arg.callback_not_invoked) {
assert(ret == 0); /* No data was consumed */
*ch_type = PXER_WMORE;
return 0; /* Try again with more data */
} else {
assert(arg.chunk_size);
assert(arg.chunk_buf == buffer);
}
/*
* Translate the XML chunk types into more convenient ones.
*/
switch(arg.chunk_type) {
case PXML_TEXT:
*ch_type = PXER_TEXT;
break;
case PXML_TAG:
*ch_type = PXER_WMORE;
return 0; /* Want more */
case PXML_TAG_END:
*ch_type = PXER_TAG;
break;
case PXML_COMMENT:
case PXML_COMMENT_END:
*ch_type = PXER_COMMENT;
break;
}
*stateContext = new_stateContext;
return arg.chunk_size;
}
#define CSLASH 0x2f /* '/' */
#define LANGLE 0x3c /* '<' */
#define RANGLE 0x3e /* '>' */
xer_check_tag_e
xer_check_tag(const void *buf_ptr, int size, const char *need_tag) {
const char *buf = (const char *)buf_ptr;
const char *end;
xer_check_tag_e ct = XCT_OPENING;
if(size < 2 || buf[0] != LANGLE || buf[size-1] != RANGLE) {
if(size >= 2)
ASN_DEBUG("Broken XML tag: \"%c...%c\"",
buf[0], buf[size - 1]);
return XCT_BROKEN;
}
/*
* Determine the tag class.
*/
if(buf[1] == CSLASH) {
buf += 2; /* advance past "</" */
size -= 3; /* strip "</" and ">" */
ct = XCT_CLOSING;
if(size > 0 && buf[size-1] == CSLASH)
return XCT_BROKEN; /* </abc/> */
} else {
buf++; /* advance past "<" */
size -= 2; /* strip "<" and ">" */
if(size > 0 && buf[size-1] == CSLASH) {
ct = XCT_BOTH;
size--; /* One more, for "/" */
}
}
/* Sometimes we don't care about the tag */
if(!need_tag || !*need_tag)
return (xer_check_tag_e)(XCT__UNK__MASK | ct);
/*
* Determine the tag name.
*/
for(end = buf + size; buf < end; buf++, need_tag++) {
int b = *buf, n = *need_tag;
if(b != n) {
if(n == 0) {
switch(b) {
case 0x09: case 0x0a: case 0x0c: case 0x0d:
case 0x20:
/* "<abc def/>": whitespace is normal */
return ct;
}
}
return (xer_check_tag_e)(XCT__UNK__MASK | ct);
}
if(b == 0)
return XCT_BROKEN; /* Embedded 0 in buf?! */
}
if(*need_tag)
return (xer_check_tag_e)(XCT__UNK__MASK | ct);
return ct;
}
#undef ADVANCE
#define ADVANCE(num_bytes) do { \
size_t num = (num_bytes); \
buf_ptr = ((const char *)buf_ptr) + num; \
size -= num; \
consumed_myself += num; \
} while(0)
#undef RETURN
#define RETURN(_code) do { \
rval.code = _code; \
rval.consumed = consumed_myself; \
if(rval.code != RC_OK) \
ASN_DEBUG("Failed with %d", rval.code); \
return rval; \
} while(0)
#define XER_GOT_BODY(chunk_buf, chunk_size, size) do { \
ssize_t converted_size = body_receiver \
(struct_key, chunk_buf, chunk_size, \
(size_t)chunk_size < size); \
if(converted_size == -1) RETURN(RC_FAIL); \
if(converted_size == 0 \
&& size == (size_t)chunk_size) \
RETURN(RC_WMORE); \
chunk_size = converted_size; \
} while(0)
#define XER_GOT_EMPTY() do { \
if(body_receiver(struct_key, 0, 0, size > 0) == -1) \
RETURN(RC_FAIL); \
} while(0)
/*
* Generalized function for decoding the primitive values.
*/
asn_dec_rval_t
xer_decode_general(const asn_codec_ctx_t *opt_codec_ctx,
asn_struct_ctx_t *ctx, /* Type decoder context */
void *struct_key,
const char *xml_tag, /* Expected XML tag */
const void *buf_ptr, size_t size,
int (*opt_unexpected_tag_decoder)
(void *struct_key, const void *chunk_buf, size_t chunk_size),
ssize_t (*body_receiver)
(void *struct_key, const void *chunk_buf, size_t chunk_size,
int have_more)
) {
asn_dec_rval_t rval;
ssize_t consumed_myself = 0;
(void)opt_codec_ctx;
/*
* Phases of XER/XML processing:
* Phase 0: Check that the opening tag matches our expectations.
* Phase 1: Processing body and reacting on closing tag.
*/
if(ctx->phase > 1) RETURN(RC_FAIL);
for(;;) {
pxer_chunk_type_e ch_type; /* XER chunk type */
ssize_t ch_size; /* Chunk size */
xer_check_tag_e tcv; /* Tag check value */
/*
* Get the next part of the XML stream.
*/
ch_size = xer_next_token(&ctx->context, buf_ptr, size,
&ch_type);
if(ch_size == -1) {
RETURN(RC_FAIL);
} else {
switch(ch_type) {
case PXER_WMORE:
RETURN(RC_WMORE);
case PXER_COMMENT: /* Got XML comment */
ADVANCE(ch_size); /* Skip silently */
continue;
case PXER_TEXT:
if(ctx->phase == 0) {
/*
* We have to ignore whitespace here,
* but in order to be forward compatible
* with EXTENDED-XER (EMBED-VALUES, #25)
* any text is just ignored here.
*/
} else {
XER_GOT_BODY(buf_ptr, ch_size, size);
}
ADVANCE(ch_size);
continue;
case PXER_TAG:
break; /* Check the rest down there */
}
}
assert(ch_type == PXER_TAG && size);
tcv = xer_check_tag(buf_ptr, ch_size, xml_tag);
/*
* Phase 0:
* Expecting the opening tag
* for the type being processed.
* Phase 1:
* Waiting for the closing XML tag.
*/
switch(tcv) {
case XCT_BOTH:
if(ctx->phase) break;
/* Finished decoding of an empty element */
XER_GOT_EMPTY();
ADVANCE(ch_size);
ctx->phase = 2; /* Phase out */
RETURN(RC_OK);
case XCT_OPENING:
if(ctx->phase) break;
ADVANCE(ch_size);
ctx->phase = 1; /* Processing body phase */
continue;
case XCT_CLOSING:
if(!ctx->phase) break;
ADVANCE(ch_size);
ctx->phase = 2; /* Phase out */
RETURN(RC_OK);
case XCT_UNKNOWN_BO:
/*
* Certain tags in the body may be expected.
*/
if(opt_unexpected_tag_decoder
&& opt_unexpected_tag_decoder(struct_key,
buf_ptr, ch_size) >= 0) {
/* Tag's processed fine */
ADVANCE(ch_size);
if(!ctx->phase) {
/* We are not expecting
* the closing tag anymore. */
ctx->phase = 2; /* Phase out */
RETURN(RC_OK);
}
continue;
}
/* Fall through */
default:
break; /* Unexpected tag */
}
ASN_DEBUG("Unexpected XML tag (expected \"%s\")", xml_tag);
break; /* Dark and mysterious things have just happened */
}
RETURN(RC_FAIL);
}
size_t
xer_whitespace_span(const void *chunk_buf, size_t chunk_size) {
const char *p = (const char *)chunk_buf;
const char *pend = p + chunk_size;
for(; p < pend; p++) {
switch(*p) {
/* X.693, #8.1.4
* HORISONTAL TAB (9)
* LINE FEED (10)
* CARRIAGE RETURN (13)
* SPACE (32)
*/
case 0x09: case 0x0a: case 0x0d: case 0x20:
continue;
default:
break;
}
break;
}
return (p - (const char *)chunk_buf);
}
/*
* This is a vastly simplified, non-validating XML tree skipper.
*/
int
xer_skip_unknown(xer_check_tag_e tcv, ber_tlv_len_t *depth) {
assert(*depth > 0);
switch(tcv) {
case XCT_BOTH:
case XCT_UNKNOWN_BO:
/* These negate each other. */
return 0;
case XCT_OPENING:
case XCT_UNKNOWN_OP:
++(*depth);
return 0;
case XCT_CLOSING:
case XCT_UNKNOWN_CL:
if(--(*depth) == 0)
return (tcv == XCT_CLOSING) ? 2 : 1;
return 0;
default:
return -1;
}
}
+106
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/*-
* Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _XER_DECODER_H_
#define _XER_DECODER_H_
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* The XER decoder of any ASN.1 type. May be invoked by the application.
* Decodes CANONICAL-XER and BASIC-XER.
*/
asn_dec_rval_t xer_decode(
const struct asn_codec_ctx_s *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor,
void **struct_ptr, /* Pointer to a target structure's pointer */
const void *buffer, /* Data to be decoded */
size_t size /* Size of data buffer */
);
/*
* Type of the type-specific XER decoder function.
*/
typedef asn_dec_rval_t(xer_type_decoder_f)(
const asn_codec_ctx_t *opt_codec_ctx,
const struct asn_TYPE_descriptor_s *type_descriptor, void **struct_ptr,
const char *opt_mname, /* Member name */
const void *buf_ptr, size_t size);
/*******************************
* INTERNALLY USEFUL FUNCTIONS *
*******************************/
/*
* Generalized function for decoding the primitive values.
* Used by more specialized functions, such as OCTET_STRING_decode_xer_utf8
* and others. This function should not be used by applications, as its API
* is subject to changes.
*/
asn_dec_rval_t xer_decode_general(
const asn_codec_ctx_t *opt_codec_ctx,
asn_struct_ctx_t *ctx, /* Type decoder context */
void *struct_key, /* Treated as opaque pointer */
const char *xml_tag, /* Expected XML tag name */
const void *buf_ptr, size_t size,
int (*opt_unexpected_tag_decoder)(void *struct_key, const void *chunk_buf,
size_t chunk_size),
ssize_t (*body_receiver)(void *struct_key, const void *chunk_buf,
size_t chunk_size, int have_more));
/*
* Fetch the next XER (XML) token from the stream.
* The function returns the number of bytes occupied by the chunk type,
* returned in the _ch_type. The _ch_type is only set (and valid) when
* the return value is >= 0.
*/
typedef enum pxer_chunk_type {
PXER_WMORE, /* Chunk type is not clear, more data expected. */
PXER_TAG, /* Complete XER tag */
PXER_TEXT, /* Plain text between XER tags */
PXER_COMMENT /* A comment, may be part of */
} pxer_chunk_type_e;
ssize_t xer_next_token(int *stateContext,
const void *buffer, size_t size, pxer_chunk_type_e *_ch_type);
/*
* This function checks the buffer against the tag name is expected to occur.
*/
typedef enum xer_check_tag {
XCT_BROKEN = 0, /* The tag is broken */
XCT_OPENING = 1, /* This is the <opening> tag */
XCT_CLOSING = 2, /* This is the </closing> tag */
XCT_BOTH = 3, /* This is the <modified/> tag */
XCT__UNK__MASK = 4, /* Mask of everything unexpected */
XCT_UNKNOWN_OP = 5, /* Unexpected <opening> tag */
XCT_UNKNOWN_CL = 6, /* Unexpected </closing> tag */
XCT_UNKNOWN_BO = 7 /* Unexpected <modified/> tag */
} xer_check_tag_e;
xer_check_tag_e xer_check_tag(const void *buf_ptr, int size,
const char *need_tag);
/*
* Get the number of bytes consisting entirely of XER whitespace characters.
* RETURN VALUES:
* >=0: Number of whitespace characters in the string.
*/
size_t xer_whitespace_span(const void *chunk_buf, size_t chunk_size);
/*
* Skip the series of anticipated extensions.
*/
int xer_skip_unknown(xer_check_tag_e tcv, ber_tlv_len_t *depth);
#ifdef __cplusplus
}
#endif
#endif /* _XER_DECODER_H_ */
+237
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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <stdio.h>
#include <errno.h>
/*
* The XER encoder of any type. May be invoked by the application.
*/
asn_enc_rval_t
xer_encode(const asn_TYPE_descriptor_t *td, const void *sptr,
enum xer_encoder_flags_e xer_flags, asn_app_consume_bytes_f *cb,
void *app_key) {
asn_enc_rval_t er = {0, 0, 0};
asn_enc_rval_t tmper;
const char *mname;
size_t mlen;
int xcan = (xer_flags & XER_F_CANONICAL) ? 1 : 2;
if(!td || !sptr) goto cb_failed;
mname = td->xml_tag;
mlen = strlen(mname);
ASN__CALLBACK3("<", 1, mname, mlen, ">", 1);
tmper = td->op->xer_encoder(td, sptr, 1, xer_flags, cb, app_key);
if(tmper.encoded == -1) return tmper;
er.encoded += tmper.encoded;
ASN__CALLBACK3("</", 2, mname, mlen, ">\n", xcan);
ASN__ENCODED_OK(er);
cb_failed:
ASN__ENCODE_FAILED;
}
/*
* This is a helper function for xer_fprint, which directs all incoming data
* into the provided file descriptor.
*/
static int
xer__print2fp(const void *buffer, size_t size, void *app_key) {
FILE *stream = (FILE *)app_key;
if(fwrite(buffer, 1, size, stream) != size)
return -1;
return 0;
}
int
xer_fprint(FILE *stream, const asn_TYPE_descriptor_t *td, const void *sptr) {
asn_enc_rval_t er;
if(!stream) stream = stdout;
if(!td || !sptr)
return -1;
er = xer_encode(td, sptr, XER_F_BASIC, xer__print2fp, stream);
if(er.encoded == -1)
return -1;
return fflush(stream);
}
struct xer_buffer {
char *buffer;
size_t buffer_size;
size_t allocated_size;
};
static int
xer__buffer_append(const void *buffer, size_t size, void *app_key) {
struct xer_buffer *xb = app_key;
while(xb->buffer_size + size + 1 > xb->allocated_size) {
size_t new_size = 2 * (xb->allocated_size ? xb->allocated_size : 64);
char *new_buf = MALLOC(new_size);
if(!new_buf) return -1;
if (xb->buffer) {
memcpy(new_buf, xb->buffer, xb->buffer_size);
}
FREEMEM(xb->buffer);
xb->buffer = new_buf;
xb->allocated_size = new_size;
}
memcpy(xb->buffer + xb->buffer_size, buffer, size);
xb->buffer_size += size;
xb->buffer[xb->buffer_size] = '\0';
return 0;
}
enum xer_equivalence_e
xer_equivalent(const struct asn_TYPE_descriptor_s *td, const void *struct1,
const void *struct2, FILE *opt_debug_stream) {
struct xer_buffer xb1 = {0, 0, 0};
struct xer_buffer xb2 = {0, 0, 0};
asn_enc_rval_t e1, e2;
asn_dec_rval_t rval;
void *sptr = NULL;
if(!td || !struct1 || !struct2) {
if(opt_debug_stream) {
if(!td) fprintf(opt_debug_stream, "Type descriptor missing\n");
if(!struct1) fprintf(opt_debug_stream, "Structure 1 missing\n");
if(!struct2) fprintf(opt_debug_stream, "Structure 2 missing\n");
}
return XEQ_FAILURE;
}
e1 = xer_encode(td, struct1, XER_F_BASIC, xer__buffer_append, &xb1);
if(e1.encoded == -1) {
if(opt_debug_stream) {
fprintf(stderr, "XER Encoding of %s failed\n", td->name);
}
FREEMEM(xb1.buffer);
return XEQ_ENCODE1_FAILED;
}
e2 = xer_encode(td, struct2, XER_F_BASIC, xer__buffer_append, &xb2);
if(e2.encoded == -1) {
if(opt_debug_stream) {
fprintf(stderr, "XER Encoding of %s failed\n", td->name);
}
FREEMEM(xb1.buffer);
FREEMEM(xb2.buffer);
return XEQ_ENCODE1_FAILED;
}
if(xb1.buffer_size != xb2.buffer_size
|| memcmp(xb1.buffer, xb2.buffer, xb1.buffer_size) != 0) {
if(opt_debug_stream) {
fprintf(opt_debug_stream,
"Structures XER-encoded into different byte streams:\n=== "
"Structure 1 ===\n%s\n=== Structure 2 ===\n%s\n",
xb1.buffer, xb2.buffer);
}
FREEMEM(xb1.buffer);
FREEMEM(xb2.buffer);
return XEQ_DIFFERENT;
} else {
if(opt_debug_stream) {
fprintf(opt_debug_stream,
"Both structures encoded into the same XER byte stream "
"of size %" ASN_PRI_SIZE ":\n%s",
xb1.buffer_size, xb1.buffer);
}
}
rval = xer_decode(NULL, td, (void **)&sptr, xb1.buffer,
xb1.buffer_size);
switch(rval.code) {
case RC_OK:
break;
case RC_WMORE:
if(opt_debug_stream) {
fprintf(opt_debug_stream,
"Structure %s XER decode unexpectedly requires "
"more data:\n%s\n",
td->name, xb1.buffer);
}
/* Fall through */
case RC_FAIL:
default:
if(opt_debug_stream) {
fprintf(opt_debug_stream,
"Structure %s XER decoding resulted in failure.\n",
td->name);
}
ASN_STRUCT_FREE(*td, sptr);
FREEMEM(xb1.buffer);
FREEMEM(xb2.buffer);
return XEQ_DECODE_FAILED;
}
if(rval.consumed != xb1.buffer_size
&& ((rval.consumed > xb1.buffer_size)
|| xer_whitespace_span(xb1.buffer + rval.consumed,
xb1.buffer_size - rval.consumed)
!= (xb1.buffer_size - rval.consumed))) {
if(opt_debug_stream) {
fprintf(opt_debug_stream,
"Round-trip decode of %s required less bytes (%" ASN_PRI_SIZE ") than "
"encoded (%" ASN_PRI_SIZE ")\n",
td->name, rval.consumed, xb1.buffer_size);
}
ASN_STRUCT_FREE(*td, sptr);
FREEMEM(xb1.buffer);
FREEMEM(xb2.buffer);
return XEQ_ROUND_TRIP_FAILED;
}
/*
* Reuse xb2 to encode newly decoded structure.
*/
FREEMEM(xb2.buffer);
memset(&xb2, 0, sizeof(xb2));
e2 = xer_encode(td, sptr, XER_F_BASIC, xer__buffer_append, &xb2);
if(e2.encoded == -1) {
if(opt_debug_stream) {
fprintf(stderr, "XER Encoding of round-trip decode of %s failed\n",
td->name);
}
ASN_STRUCT_FREE(*td, sptr);
FREEMEM(xb1.buffer);
FREEMEM(xb2.buffer);
return XEQ_ROUND_TRIP_FAILED;
}
ASN_STRUCT_FREE(*td, sptr);
sptr = 0;
if(xb1.buffer_size != xb2.buffer_size
|| memcmp(xb1.buffer, xb2.buffer, xb1.buffer_size) != 0) {
if(opt_debug_stream) {
fprintf(opt_debug_stream,
"XER Encoding of round-trip decode of %s resulted in "
"different byte stream:\n"
"=== Original ===\n%s\n"
"=== Round-tripped ===\n%s\n",
xb1.buffer, xb2.buffer, td->name);
}
FREEMEM(xb1.buffer);
FREEMEM(xb2.buffer);
return XEQ_ROUND_TRIP_FAILED;
}
FREEMEM(xb1.buffer);
FREEMEM(xb2.buffer);
return XEQ_SUCCESS;
}
+83
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/*-
* Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _XER_ENCODER_H_
#define _XER_ENCODER_H_
#include <asn_application.h>
#ifdef __cplusplus
extern "C" {
#endif
struct asn_TYPE_descriptor_s; /* Forward declaration */
/* Flags used by the xer_encode() and (*xer_type_encoder_f), defined below */
enum xer_encoder_flags_e {
/* Mode of encoding */
XER_F_BASIC = 0x01, /* BASIC-XER (pretty-printing) */
XER_F_CANONICAL = 0x02 /* Canonical XER (strict rules) */
};
/*
* The XER encoder of any type. May be invoked by the application.
* Produces CANONICAL-XER and BASIC-XER depending on the (xer_flags).
*/
asn_enc_rval_t xer_encode(const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr, /* Structure to be encoded */
enum xer_encoder_flags_e xer_flags,
asn_app_consume_bytes_f *consume_bytes_cb,
void *app_key /* Arbitrary callback argument */
);
/*
* The variant of the above function which dumps the BASIC-XER (XER_F_BASIC)
* output into the chosen file pointer.
* RETURN VALUES:
* 0: The structure is printed.
* -1: Problem printing the structure.
* WARNING: No sensible errno value is returned.
*/
int xer_fprint(FILE *stream, const struct asn_TYPE_descriptor_s *td,
const void *struct_ptr);
/*
* A helper function that uses XER encoding/decoding to verify that:
* - Both structures encode into the same BASIC XER.
* - Both resulting XER byte streams can be decoded back.
* - Both decoded structures encode into the same BASIC XER (round-trip).
* All of this verifies equivalence between structures and a round-trip.
* ARGUMENTS:
* (opt_debug_stream) - If specified, prints ongoing details.
*/
enum xer_equivalence_e {
XEQ_SUCCESS, /* The only completely positive return value */
XEQ_FAILURE, /* General failure */
XEQ_ENCODE1_FAILED, /* First sructure XER encoding failed */
XEQ_ENCODE2_FAILED, /* Second structure XER encoding failed */
XEQ_DIFFERENT, /* Structures encoded into different XER */
XEQ_DECODE_FAILED, /* Decode of the XER data failed */
XEQ_ROUND_TRIP_FAILED /* Bad round-trip */
};
enum xer_equivalence_e xer_equivalent(
const struct asn_TYPE_descriptor_s *type_descriptor, const void *struct1,
const void *struct2, FILE *opt_debug_stream);
/*
* Type of the generic XER encoder.
*/
typedef asn_enc_rval_t(xer_type_encoder_f)(
const struct asn_TYPE_descriptor_s *type_descriptor,
const void *struct_ptr, /* Structure to be encoded */
int ilevel, /* Level of indentation */
enum xer_encoder_flags_e xer_flags,
asn_app_consume_bytes_f *consume_bytes_cb, /* Callback */
void *app_key /* Arbitrary callback argument */
);
#ifdef __cplusplus
}
#endif
#endif /* _XER_ENCODER_H_ */
+227
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/*
* Copyright (c) 2003, 2004 X/IO Labs, xiolabs.com.
* Copyright (c) 2003, 2004, 2005 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_system.h>
#include <xer_support.h>
/* Parser states */
typedef enum {
ST_TEXT,
ST_TAG_START,
ST_TAG_BODY,
ST_TAG_QUOTE_WAIT,
ST_TAG_QUOTED_STRING,
ST_TAG_UNQUOTED_STRING,
ST_COMMENT_WAIT_DASH1, /* "<!--"[1] */
ST_COMMENT_WAIT_DASH2, /* "<!--"[2] */
ST_COMMENT,
ST_COMMENT_CLO_DASH2, /* "-->"[0] */
ST_COMMENT_CLO_RT /* "-->"[1] */
} pstate_e;
static const int
_charclass[256] = {
0,0,0,0,0,0,0,0, 0,1,1,0,1,1,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
2,2,2,2,2,2,2,2, 2,2,0,0,0,0,0,0, /* 01234567 89 */
0,3,3,3,3,3,3,3, 3,3,3,3,3,3,3,3, /* ABCDEFG HIJKLMNO */
3,3,3,3,3,3,3,3, 3,3,3,0,0,0,0,0, /* PQRSTUVW XYZ */
0,3,3,3,3,3,3,3, 3,3,3,3,3,3,3,3, /* abcdefg hijklmno */
3,3,3,3,3,3,3,3, 3,3,3,0,0,0,0,0 /* pqrstuvw xyz */
};
#define WHITESPACE(c) (_charclass[(unsigned char)(c)] == 1)
#define ALNUM(c) (_charclass[(unsigned char)(c)] >= 2)
#define ALPHA(c) (_charclass[(unsigned char)(c)] == 3)
/* Aliases for characters, ASCII/UTF-8 */
#define EXCLAM 0x21 /* '!' */
#define CQUOTE 0x22 /* '"' */
#define CDASH 0x2d /* '-' */
#define CSLASH 0x2f /* '/' */
#define LANGLE 0x3c /* '<' */
#define CEQUAL 0x3d /* '=' */
#define RANGLE 0x3e /* '>' */
#define CQUEST 0x3f /* '?' */
/* Invoke token callback */
#define TOKEN_CB_CALL(type, _ns, _current_too, _final) do { \
int _ret; \
pstate_e ns = _ns; \
ssize_t _sz = (p - chunk_start) + _current_too; \
if (!_sz) { \
/* Shortcut */ \
state = _ns; \
break; \
} \
_ret = cb(type, chunk_start, _sz, key); \
if(_ret < _sz) { \
if(_current_too && _ret == -1) \
state = ns; \
goto finish; \
} \
chunk_start = p + _current_too; \
state = ns; \
} while(0)
#define TOKEN_CB(_type, _ns, _current_too) \
TOKEN_CB_CALL(_type, _ns, _current_too, 0)
#define PXML_TAG_FINAL_CHUNK_TYPE PXML_TAG_END
#define PXML_COMMENT_FINAL_CHUNK_TYPE PXML_COMMENT_END
#define TOKEN_CB_FINAL(_type, _ns, _current_too) \
TOKEN_CB_CALL( _type ## _FINAL_CHUNK_TYPE , _ns, _current_too, 1)
/*
* Parser itself
*/
ssize_t pxml_parse(int *stateContext, const void *xmlbuf, size_t size, pxml_callback_f *cb, void *key) {
pstate_e state = (pstate_e)*stateContext;
const char *chunk_start = (const char *)xmlbuf;
const char *p = chunk_start;
const char *end = p + size;
for(; p < end; p++) {
int C = *(const unsigned char *)p;
switch(state) {
case ST_TEXT:
/*
* Initial state: we're in the middle of some text,
* or just have started.
*/
if (C == LANGLE)
/* We're now in the tag, probably */
TOKEN_CB(PXML_TEXT, ST_TAG_START, 0);
break;
case ST_TAG_START:
if (ALPHA(C) || (C == CSLASH))
state = ST_TAG_BODY;
else if (C == EXCLAM)
state = ST_COMMENT_WAIT_DASH1;
else
/*
* Not characters and not whitespace.
* Must be something like "3 < 4".
*/
TOKEN_CB(PXML_TEXT, ST_TEXT, 1);/* Flush as data */
break;
case ST_TAG_BODY:
switch(C) {
case RANGLE:
/* End of the tag */
TOKEN_CB_FINAL(PXML_TAG, ST_TEXT, 1);
break;
case LANGLE:
/*
* The previous tag wasn't completed, but still
* recognized as valid. (Mozilla-compatible)
*/
TOKEN_CB_FINAL(PXML_TAG, ST_TAG_START, 0);
break;
case CEQUAL:
state = ST_TAG_QUOTE_WAIT;
break;
}
break;
case ST_TAG_QUOTE_WAIT:
/*
* State after the equal sign ("=") in the tag.
*/
switch(C) {
case CQUOTE:
state = ST_TAG_QUOTED_STRING;
break;
case RANGLE:
/* End of the tag */
TOKEN_CB_FINAL(PXML_TAG, ST_TEXT, 1);
break;
default:
if(!WHITESPACE(C))
/* Unquoted string value */
state = ST_TAG_UNQUOTED_STRING;
}
break;
case ST_TAG_QUOTED_STRING:
/*
* Tag attribute's string value in quotes.
*/
if(C == CQUOTE) {
/* Return back to the tag state */
state = ST_TAG_BODY;
}
break;
case ST_TAG_UNQUOTED_STRING:
if(C == RANGLE) {
/* End of the tag */
TOKEN_CB_FINAL(PXML_TAG, ST_TEXT, 1);
} else if(WHITESPACE(C)) {
/* Return back to the tag state */
state = ST_TAG_BODY;
}
break;
case ST_COMMENT_WAIT_DASH1:
if(C == CDASH) {
state = ST_COMMENT_WAIT_DASH2;
} else {
/* Some ordinary tag. */
state = ST_TAG_BODY;
}
break;
case ST_COMMENT_WAIT_DASH2:
if(C == CDASH) {
/* Seen "<--" */
state = ST_COMMENT;
} else {
/* Some ordinary tag */
state = ST_TAG_BODY;
}
break;
case ST_COMMENT:
if(C == CDASH) {
state = ST_COMMENT_CLO_DASH2;
}
break;
case ST_COMMENT_CLO_DASH2:
if(C == CDASH) {
state = ST_COMMENT_CLO_RT;
} else {
/* This is not an end of a comment */
state = ST_COMMENT;
}
break;
case ST_COMMENT_CLO_RT:
if(C == RANGLE) {
TOKEN_CB_FINAL(PXML_COMMENT, ST_TEXT, 1);
} else if(C == CDASH) {
/* Maintain current state, still waiting for '>' */
} else {
state = ST_COMMENT;
}
break;
} /* switch(*ptr) */
} /* for() */
/*
* Flush the partially processed chunk, state permitting.
*/
if(p - chunk_start) {
switch (state) {
case ST_COMMENT:
TOKEN_CB(PXML_COMMENT, state, 0);
break;
case ST_TEXT:
TOKEN_CB(PXML_TEXT, state, 0);
break;
default: break; /* a no-op */
}
}
finish:
*stateContext = (int)state;
return chunk_start - (const char *)xmlbuf;
}
+55
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/*
* Copyright (c) 2003, 2004 X/IO Labs, xiolabs.com.
* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _XER_SUPPORT_H_
#define _XER_SUPPORT_H_
#include <asn_system.h> /* Platform-specific types */
#ifdef __cplusplus
extern "C" {
#endif
/*
* Types of data transferred to the application.
*/
typedef enum {
PXML_TEXT, /* Plain text between XML tags. */
PXML_TAG, /* A tag, starting with '<'. */
PXML_COMMENT, /* An XML comment, including "<!--" and "-->". */
/*
* The following chunk types are reported if the chunk
* terminates the specified XML element.
*/
PXML_TAG_END, /* Tag ended */
PXML_COMMENT_END /* Comment ended */
} pxml_chunk_type_e;
/*
* Callback function that is called by the parser when parsed data is
* available. The _opaque is the pointer to a field containing opaque user
* data specified in pxml_create() call. The chunk type is _type and the text
* data is the piece of buffer identified by _bufid (as supplied to
* pxml_feed() call) starting at offset _offset and of _size bytes size.
* The chunk is NOT '\0'-terminated.
*/
typedef int (pxml_callback_f)(pxml_chunk_type_e _type,
const void *_chunk_data, size_t _chunk_size, void *_key);
/*
* Parse the given buffer as it were a chunk of XML data.
* Invoke the specified callback each time the meaninful data is found.
* This function returns number of bytes consumed from the bufer.
* It will always be lesser than or equal to the specified _size.
* The next invocation of this function must account the difference.
*/
ssize_t pxml_parse(int *_stateContext, const void *_buf, size_t _size,
pxml_callback_f *cb, void *_key);
#ifdef __cplusplus
}
#endif
#endif /* _XER_SUPPORT_H_ */
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NAME
SHA1Init, SHA1Update, SHA1Final, SHA1Transform
SYNOPSIS
#include <sys/types.h>
#include <sha1.h>
void SHA1Transform(
uint32_t state[5],
const unsigned char buffer[64]);
void SHA1Init(
SHA1_CTX * context);
void SHA1Update(
SHA1_CTX * context,
const unsigned char *data,
uint32_t len);
void SHA1Final(
unsigned char digest[20],
SHA1_CTX * context);
DESCRIPTION
The SHA1 functions implement the NIST Secure Hash Algorithm (SHA-1), FIPS
PUB 180-1. SHA-1 is used to generate a condensed representation of a
message called a message digest. The algorithm takes a message less than
2^64 bits as input and produces a 160-bit digest suitable for use as a
digital signature.
The SHA1Init() function initializes a SHA1_CTX context for use with
SHA1Update(), and SHA1Final(). The SHA1Update() function adds data of
length len to the SHA1_CTX specified by context. SHA1Final() is called
when all data has been added via SHA1Update() and stores a message digest
in the digest parameter. When a null pointer is passed to SHA1Final() as
first argument only the final padding will be applied and the current
context can still be used with SHA1Update().
The SHA1Transform() function is used by SHA1Update() to hash 512-bit
blocks and forms the core of the algorithm. Most programs should use the
interface provided by SHA1Init(), SHA1Update() and SHA1Final() instead of
calling SHA1Transform() directly.
EXAMPLES
The follow code fragment will calculate the digest for the string "abc"
which is ``0xa9993e36476816aba3e25717850c26c9cd0d89d''.
SHA1_CTX sha;
uint8_t results[20];
char *buf;
int n;
buf = "abc";
n = strlen(buf);
SHA1Init(&sha);
SHA1Update(&sha, (uint8_t *)buf, n);
SHA1Final(results, &sha);
/* Print the digest as one long hex value */
printf("0x");
for (n = 0; n < 20; n++)
printf("%02x", results[n]);
putchar('\n');
Alternately, the helper functions could be used in the following way:
SHA1_CTX sha;
uint8_t output[41];
char *buf = "abc";
printf("0x%s", SHA1Data(buf, strlen(buf), output));
AUTHORS
This implementation of SHA-1 was written by Steve Reid.
BUGS
This implementation of SHA-1 has not been validated by NIST and as such
is not in official compliance with the standard.
If a message digest is to be copied to a multi-byte type (ie: an array of
five 32-bit integers) it will be necessary to perform byte swapping on
little endian machines such as the i386, alpha, and VAX.
Vendored Executable
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/*
SHA-1 in C
By Steve Reid <steve@edmweb.com>
100% Public Domain
Test Vectors (from FIPS PUB 180-1)
"abc"
A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
A million repetitions of "a"
34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
*/
/* #define LITTLE_ENDIAN * This should be #define'd already, if true. */
/* #define SHA1HANDSOFF * Copies data before messing with it. */
#define SHA1HANDSOFF
#include <stdio.h>
#include <string.h>
/* for uint32_t */
#include <stdint.h>
#include "sha1.h"
#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
/* blk0() and blk() perform the initial expand. */
/* I got the idea of expanding during the round function from SSLeay */
#if BYTE_ORDER == LITTLE_ENDIAN
#define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \
|(rol(block->l[i],8)&0x00FF00FF))
#elif BYTE_ORDER == BIG_ENDIAN
#define blk0(i) block->l[i]
#else
#error "Endianness not defined!"
#endif
#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
^block->l[(i+2)&15]^block->l[i&15],1))
/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);
/* Hash a single 512-bit block. This is the core of the algorithm. */
void SHA1Transform(
uint32_t state[5],
const unsigned char buffer[64]
)
{
uint32_t a, b, c, d, e;
typedef union
{
unsigned char c[64];
uint32_t l[16];
} CHAR64LONG16;
#ifdef SHA1HANDSOFF
CHAR64LONG16 block[1]; /* use array to appear as a pointer */
memcpy(block, buffer, 64);
#else
/* The following had better never be used because it causes the
* pointer-to-const buffer to be cast into a pointer to non-const.
* And the result is written through. I threw a "const" in, hoping
* this will cause a diagnostic.
*/
CHAR64LONG16 *block = (const CHAR64LONG16 *) buffer;
#endif
/* Copy context->state[] to working vars */
a = state[0];
b = state[1];
c = state[2];
d = state[3];
e = state[4];
/* 4 rounds of 20 operations each. Loop unrolled. */
R0(a, b, c, d, e, 0);
R0(e, a, b, c, d, 1);
R0(d, e, a, b, c, 2);
R0(c, d, e, a, b, 3);
R0(b, c, d, e, a, 4);
R0(a, b, c, d, e, 5);
R0(e, a, b, c, d, 6);
R0(d, e, a, b, c, 7);
R0(c, d, e, a, b, 8);
R0(b, c, d, e, a, 9);
R0(a, b, c, d, e, 10);
R0(e, a, b, c, d, 11);
R0(d, e, a, b, c, 12);
R0(c, d, e, a, b, 13);
R0(b, c, d, e, a, 14);
R0(a, b, c, d, e, 15);
R1(e, a, b, c, d, 16);
R1(d, e, a, b, c, 17);
R1(c, d, e, a, b, 18);
R1(b, c, d, e, a, 19);
R2(a, b, c, d, e, 20);
R2(e, a, b, c, d, 21);
R2(d, e, a, b, c, 22);
R2(c, d, e, a, b, 23);
R2(b, c, d, e, a, 24);
R2(a, b, c, d, e, 25);
R2(e, a, b, c, d, 26);
R2(d, e, a, b, c, 27);
R2(c, d, e, a, b, 28);
R2(b, c, d, e, a, 29);
R2(a, b, c, d, e, 30);
R2(e, a, b, c, d, 31);
R2(d, e, a, b, c, 32);
R2(c, d, e, a, b, 33);
R2(b, c, d, e, a, 34);
R2(a, b, c, d, e, 35);
R2(e, a, b, c, d, 36);
R2(d, e, a, b, c, 37);
R2(c, d, e, a, b, 38);
R2(b, c, d, e, a, 39);
R3(a, b, c, d, e, 40);
R3(e, a, b, c, d, 41);
R3(d, e, a, b, c, 42);
R3(c, d, e, a, b, 43);
R3(b, c, d, e, a, 44);
R3(a, b, c, d, e, 45);
R3(e, a, b, c, d, 46);
R3(d, e, a, b, c, 47);
R3(c, d, e, a, b, 48);
R3(b, c, d, e, a, 49);
R3(a, b, c, d, e, 50);
R3(e, a, b, c, d, 51);
R3(d, e, a, b, c, 52);
R3(c, d, e, a, b, 53);
R3(b, c, d, e, a, 54);
R3(a, b, c, d, e, 55);
R3(e, a, b, c, d, 56);
R3(d, e, a, b, c, 57);
R3(c, d, e, a, b, 58);
R3(b, c, d, e, a, 59);
R4(a, b, c, d, e, 60);
R4(e, a, b, c, d, 61);
R4(d, e, a, b, c, 62);
R4(c, d, e, a, b, 63);
R4(b, c, d, e, a, 64);
R4(a, b, c, d, e, 65);
R4(e, a, b, c, d, 66);
R4(d, e, a, b, c, 67);
R4(c, d, e, a, b, 68);
R4(b, c, d, e, a, 69);
R4(a, b, c, d, e, 70);
R4(e, a, b, c, d, 71);
R4(d, e, a, b, c, 72);
R4(c, d, e, a, b, 73);
R4(b, c, d, e, a, 74);
R4(a, b, c, d, e, 75);
R4(e, a, b, c, d, 76);
R4(d, e, a, b, c, 77);
R4(c, d, e, a, b, 78);
R4(b, c, d, e, a, 79);
/* Add the working vars back into context.state[] */
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
state[4] += e;
/* Wipe variables */
a = b = c = d = e = 0;
#ifdef SHA1HANDSOFF
memset(block, '\0', sizeof(block));
#endif
}
/* SHA1Init - Initialize new context */
void SHA1Init(
SHA1_CTX * context
)
{
/* SHA1 initialization constants */
context->state[0] = 0x67452301;
context->state[1] = 0xEFCDAB89;
context->state[2] = 0x98BADCFE;
context->state[3] = 0x10325476;
context->state[4] = 0xC3D2E1F0;
context->count[0] = context->count[1] = 0;
}
/* Run your data through this. */
void SHA1Update(
SHA1_CTX * context,
const unsigned char *data,
uint32_t len
)
{
uint32_t i;
uint32_t j;
j = context->count[0];
if ((context->count[0] += len << 3) < j)
context->count[1]++;
context->count[1] += (len >> 29);
j = (j >> 3) & 63;
if ((j + len) > 63)
{
memcpy(&context->buffer[j], data, (i = 64 - j));
SHA1Transform(context->state, context->buffer);
for (; i + 63 < len; i += 64)
{
SHA1Transform(context->state, &data[i]);
}
j = 0;
}
else
i = 0;
memcpy(&context->buffer[j], &data[i], len - i);
}
/* Add padding and return the message digest. */
void SHA1Final(
unsigned char digest[20],
SHA1_CTX * context
)
{
unsigned i;
unsigned char finalcount[8];
unsigned char c;
#if 0 /* untested "improvement" by DHR */
/* Convert context->count to a sequence of bytes
* in finalcount. Second element first, but
* big-endian order within element.
* But we do it all backwards.
*/
unsigned char *fcp = &finalcount[8];
for (i = 0; i < 2; i++)
{
uint32_t t = context->count[i];
int j;
for (j = 0; j < 4; t >>= 8, j++)
*--fcp = (unsigned char) t}
#else
for (i = 0; i < 8; i++)
{
finalcount[i] = (unsigned char) ((context->count[(i >= 4 ? 0 : 1)] >> ((3 - (i & 3)) * 8)) & 255); /* Endian independent */
}
#endif
c = 0200;
SHA1Update(context, &c, 1);
while ((context->count[0] & 504) != 448)
{
c = 0000;
SHA1Update(context, &c, 1);
}
SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */
for (i = 0; i < 20; i++)
{
digest[i] = (unsigned char)
((context->state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255);
}
/* Wipe variables */
memset(context, '\0', sizeof(*context));
memset(&finalcount, '\0', sizeof(finalcount));
}
void SHA1(
char *hash_out,
const char *str,
int len)
{
SHA1_CTX ctx;
unsigned int ii;
SHA1Init(&ctx);
for (ii=0; ii<len; ii+=1)
SHA1Update(&ctx, (const unsigned char*)str + ii, 1);
SHA1Final((unsigned char *)hash_out, &ctx);
hash_out[20] = '\0';
}
Vendored Executable
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#ifndef SHA1_H
#define SHA1_H
/*
SHA-1 in C
By Steve Reid <steve@edmweb.com>
100% Public Domain
*/
#include "stdint.h"
typedef struct
{
uint32_t state[5];
uint32_t count[2];
unsigned char buffer[64];
} SHA1_CTX;
void SHA1Transform(
uint32_t state[5],
const unsigned char buffer[64]
);
void SHA1Init(
SHA1_CTX * context
);
void SHA1Update(
SHA1_CTX * context,
const unsigned char *data,
uint32_t len
);
void SHA1Final(
unsigned char digest[20],
SHA1_CTX * context
);
void SHA1(
char *hash_out,
const char *str,
int len);
#endif /* SHA1_H */
Vendored Executable
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/*
SHA1 tests by Philip Woolford <woolford.philip@gmail.com>
100% Public Domain
*/
#include "sha1.h"
#include "CUnit/Basic.h"
#include "stdio.h"
#include "string.h"
#define SUCCESS 0
/* The suite initialization function.
* Returns zero on success, non-zero otherwise.
*/
int init_suite(
void
)
{
return 0;
}
/* The suite cleanup function.
* Returns zero on success, non-zero otherwise.
*/
int clean_suite(
void
)
{
return 0;
}
/* Test Vector 1 */
void testvec1(
void
)
{
char const string[] = "abc";
char const expect[] = "a9993e364706816aba3e25717850c26c9cd0d89d";
char result[21];
char hexresult[41];
size_t offset;
/* calculate hash */
SHA1( result, string, strlen(string) );
/* format the hash for comparison */
for( offset = 0; offset < 20; offset++) {
sprintf( ( hexresult + (2*offset)), "%02x", result[offset]&0xff);
}
CU_ASSERT( strncmp(hexresult, expect, 40) == SUCCESS );
}
/* Test Vector 2 */
void testvec2(
void
)
{
char const string[] = "";
char const expect[] = "da39a3ee5e6b4b0d3255bfef95601890afd80709";
char result[21];
char hexresult[41];
size_t offset;
/* calculate hash */
SHA1( result, string, strlen(string) );
/*format the hash for comparison */
for( offset = 0; offset < 20; offset++) {
sprintf( ( hexresult + (2*offset)), "%02x", result[offset]&0xff);
}
CU_ASSERT( strncmp(hexresult, expect, 40) == SUCCESS );
}
/* Test Vector 3 */
void testvec3(
void
)
{
char const string[] = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
char const expect[] = "84983e441c3bd26ebaae4aa1f95129e5e54670f1";
char result[21];
char hexresult[41];
size_t offset;
/* calculate hash */
SHA1( result, string, strlen(string) );
/* format the hash for comparison */
for( offset = 0; offset < 20; offset++) {
sprintf( ( hexresult + (2*offset)), "%02x", result[offset]&0xff);
}
CU_ASSERT( strncmp(hexresult, expect, 40) == SUCCESS );
}
/* Test Vector 4 */
void testvec4(
void
)
{
char const string1[] = "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghij";
char const string2[] = "klmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu";
char const expect[] = "a49b2446a02c645bf419f995b67091253a04a259";
unsigned char result[21];
char hexresult[41];
size_t offset;
SHA1_CTX ctx;
/* calculate hash */
SHA1Init(&ctx);
SHA1Update( &ctx, (unsigned char const *)string1, strlen(string1) );
SHA1Update( &ctx, (unsigned char const *)string2, strlen(string2) );
SHA1Final(result, &ctx);
/* format the hash for comparison */
for( offset = 0; offset < 20; offset++) {
sprintf( ( hexresult + (2*offset)), "%02x", result[offset]&0xff);
}
CU_ASSERT( strncmp(hexresult, expect, 40) == SUCCESS );
}
/* Test Vector 5 */
void testvec5(
void
)
{
char string[1000001];
char const expect[] = "34aa973cd4c4daa4f61eeb2bdbad27316534016f";
char result[21];
char hexresult[41];
int iterator;
size_t offset;
/* generate string */
for( iterator = 0; iterator < 1000000; iterator++) {
string[iterator] = 'a';
}
string[1000000] = '\0';
/* calculate hash */
SHA1( result, string, strlen(string) );
/* format the hash for comparison */
for( offset = 0; offset < 20; offset++) {
sprintf( ( hexresult + (2*offset)), "%02x", result[offset]&0xff);
}
CU_ASSERT( strncmp(hexresult, expect, 40) == SUCCESS );
}
/* Test Vector 6 */
void testvec6(
void
)
{
char const string[] = "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmno";
char const expect[] = "7789f0c9ef7bfc40d93311143dfbe69e2017f592";
unsigned char result[21];
char hexresult[41];
int iterator;
size_t offset;
SHA1_CTX ctx;
/* calculate hash */
SHA1Init(&ctx);
for ( iterator = 0; iterator < 16777216; iterator++) {
SHA1Update( &ctx, (unsigned char const *)string, strlen(string) );
}
SHA1Final(result, &ctx);
/* format the hash for comparison */
for( offset = 0; offset < 20; offset++) {
sprintf( ( hexresult + (2*offset)), "%02x", result[offset]&0xff);
}
CU_ASSERT( strncmp(hexresult, expect, 40) == SUCCESS );
}
int main(
void
)
{
CU_pSuite pSuite = NULL;
/* initialize the CUnit test registry */
if (CUE_SUCCESS != CU_initialize_registry())
return CU_get_error();
/* add a suite to the registry */
pSuite = CU_add_suite("http://www.di-mgt.com.au/sha_testvectors.html", init_suite, clean_suite);
if (NULL == pSuite) {
CU_cleanup_registry();
return CU_get_error();
}
/* add the tests to the suite */
if ((NULL == CU_add_test(pSuite, "Test of Test Vector 1", testvec1)) ||
(NULL == CU_add_test(pSuite, "Test of Test Vector 2", testvec2)) ||
(NULL == CU_add_test(pSuite, "Test of Test Vector 3", testvec3)) ||
(NULL == CU_add_test(pSuite, "Test of Test Vector 4", testvec4)) ||
(NULL == CU_add_test(pSuite, "Test of Test Vector 5", testvec5)) ||
(NULL == CU_add_test(pSuite, "Test of Test Vector 6", testvec6)))
{
CU_cleanup_registry();
return CU_get_error();
}
/* Run all tests using the CUnit Basic interface */
CU_basic_set_mode(CU_BRM_VERBOSE);
CU_basic_run_tests();
CU_cleanup_registry();
return CU_get_error();
}