Juan Lang : crypt32: Explicitly pass array pointer when decoding CMS message CRLs rather than assuming a particular alignment .
Alexandre Julliard
julliard at winehq.org
Thu Oct 15 08:54:31 CDT 2009
Module: wine
Branch: master
Commit: 07a1750af740f399e360efd8b39f77ebc82d22ef
URL: http://source.winehq.org/git/wine.git/?a=commit;h=07a1750af740f399e360efd8b39f77ebc82d22ef
Author: Juan Lang <juan.lang at gmail.com>
Date: Wed Oct 14 12:48:38 2009 -0700
crypt32: Explicitly pass array pointer when decoding CMS message CRLs rather than assuming a particular alignment.
---
dlls/crypt32/decode.c | 53 +++++++++++++++++++++++++++++++-----------------
1 files changed, 34 insertions(+), 19 deletions(-)
diff --git a/dlls/crypt32/decode.c b/dlls/crypt32/decode.c
index b660626..02f700e 100644
--- a/dlls/crypt32/decode.c
+++ b/dlls/crypt32/decode.c
@@ -2348,23 +2348,6 @@ static BOOL CRYPT_AsnDecodeCopyBytes(const BYTE *pbEncoded,
return ret;
}
-static BOOL CRYPT_DecodeDERArray(const BYTE *pbEncoded, DWORD cbEncoded,
- DWORD dwFlags, void *pvStructInfo, DWORD *pcbStructInfo, DWORD *pcbDecoded)
-{
- BOOL ret;
- struct AsnArrayDescriptor arrayDesc = { 0, CRYPT_AsnDecodeCopyBytes,
- sizeof(CRYPT_DER_BLOB), TRUE, offsetof(CRYPT_DER_BLOB, pbData) };
- struct GenericArray *array = pvStructInfo;
-
- TRACE("%p, %d, %08x, %p, %d, %p\n", pbEncoded, cbEncoded, dwFlags,
- pvStructInfo, *pcbStructInfo, pcbDecoded);
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- NULL, pvStructInfo, pcbStructInfo, pcbDecoded,
- array ? array->rgItems : NULL);
- return ret;
-}
-
static BOOL CRYPT_AsnDecodeCTLUsage(const BYTE *pbEncoded, DWORD cbEncoded,
DWORD dwFlags, void *pvStructInfo, DWORD *pcbStructInfo, DWORD *pcbDecoded)
{
@@ -5378,6 +5361,38 @@ static BOOL CRYPT_AsnDecodeCMSCertEncoded(const BYTE *pbEncoded,
return ret;
}
+static BOOL CRYPT_AsnDecodeCMSCrlEncoded(const BYTE *pbEncoded,
+ DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, DWORD *pcbStructInfo,
+ DWORD *pcbDecoded)
+{
+ BOOL ret;
+ struct AsnArrayDescriptor arrayDesc = { 0, CRYPT_AsnDecodeCopyBytes,
+ sizeof(CRYPT_DER_BLOB), TRUE, offsetof(CRYPT_DER_BLOB, pbData) };
+ DWORD bytesNeeded;
+
+ TRACE("%p, %d, %08x, %p, %d, %p\n", pbEncoded, cbEncoded, dwFlags,
+ pvStructInfo, pvStructInfo ? *pcbStructInfo : 0, pcbDecoded);
+
+ if ((ret = CRYPT_AsnDecodeArrayNoAlloc(&arrayDesc, pbEncoded, cbEncoded,
+ NULL, NULL, &bytesNeeded, pcbDecoded)))
+ {
+ bytesNeeded += MEMBERSIZE(CRYPT_SIGNED_INFO, cCrlEncoded, content);
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(0, NULL, pvStructInfo,
+ pcbStructInfo, bytesNeeded)))
+ {
+ CRYPT_SIGNED_INFO *info = (CRYPT_SIGNED_INFO *)
+ ((BYTE *)pvStructInfo - offsetof(CRYPT_SIGNED_INFO, cCrlEncoded));
+
+ ret = CRYPT_AsnDecodeArrayNoAlloc(&arrayDesc, pbEncoded, cbEncoded,
+ &info->cCrlEncoded, info->rgCrlEncoded, &bytesNeeded,
+ pcbDecoded);
+ }
+ }
+ return ret;
+}
+
static BOOL CRYPT_AsnDecodeCMSSignerId(const BYTE *pbEncoded,
DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, DWORD *pcbStructInfo,
DWORD *pcbDecoded)
@@ -5540,8 +5555,8 @@ BOOL CRYPT_AsnDecodeCMSSignedInfo(const BYTE *pbEncoded, DWORD cbEncoded,
MEMBERSIZE(CRYPT_SIGNED_INFO, cCertEncoded, cCrlEncoded), TRUE, TRUE,
offsetof(CRYPT_SIGNED_INFO, rgCertEncoded), 0 },
{ ASN_CONSTRUCTOR | ASN_CONTEXT | 1,
- offsetof(CRYPT_SIGNED_INFO, cCrlEncoded), CRYPT_DecodeDERArray,
- sizeof(struct GenericArray), TRUE, TRUE,
+ offsetof(CRYPT_SIGNED_INFO, cCrlEncoded), CRYPT_AsnDecodeCMSCrlEncoded,
+ MEMBERSIZE(CRYPT_SIGNED_INFO, cCrlEncoded, content), TRUE, TRUE,
offsetof(CRYPT_SIGNED_INFO, rgCrlEncoded), 0 },
{ ASN_CONSTRUCTOR | ASN_SETOF, offsetof(CRYPT_SIGNED_INFO, cSignerInfo),
CRYPT_DecodeSignerArray, sizeof(struct GenericArray), TRUE, TRUE,
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