crypt32: Split the unwieldy encode.c into two files.
diff --git a/dlls/crypt32/Makefile.in b/dlls/crypt32/Makefile.in
index e107292..4322b49 100644
--- a/dlls/crypt32/Makefile.in
+++ b/dlls/crypt32/Makefile.in
@@ -9,6 +9,7 @@
C_SRCS = \
cert.c \
+ decode.c \
encode.c \
oid.c \
proplist.c \
diff --git a/dlls/crypt32/crypt32_private.h b/dlls/crypt32/crypt32_private.h
index 25c41e4..1ba5f4a 100644
--- a/dlls/crypt32/crypt32_private.h
+++ b/dlls/crypt32/crypt32_private.h
@@ -19,6 +19,17 @@
#ifndef __CRYPT32_PRIVATE_H__
#define __CRYPT32_PRIVATE_H__
+/* a few asn.1 tags we need */
+#define ASN_BOOL (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x01)
+#define ASN_BITSTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x03)
+#define ASN_ENUMERATED (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x0a)
+#define ASN_SETOF (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x11)
+#define ASN_NUMERICSTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x12)
+#define ASN_PRINTABLESTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x13)
+#define ASN_IA5STRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x16)
+#define ASN_UTCTIME (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x17)
+#define ASN_GENERALTIME (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x18)
+
/* The following aren't defined in wincrypt.h, as they're "reserved" */
#define CERT_CERT_PROP_ID 32
#define CERT_CRL_PROP_ID 33
diff --git a/dlls/crypt32/decode.c b/dlls/crypt32/decode.c
new file mode 100644
index 0000000..30da401
--- /dev/null
+++ b/dlls/crypt32/decode.c
@@ -0,0 +1,3075 @@
+/*
+ * Copyright 2005 Juan Lang
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * This file implements ASN.1 DER decoding of a limited set of types.
+ * It isn't a full ASN.1 implementation. Microsoft implements BER
+ * encoding of many of the basic types in msasn1.dll, but that interface is
+ * undocumented, so I implement them here.
+ *
+ * References:
+ * "A Layman's Guide to a Subset of ASN.1, BER, and DER", by Burton Kaliski
+ * (available online, look for a PDF copy as the HTML versions tend to have
+ * translation errors.)
+ *
+ * RFC3280, http://www.faqs.org/rfcs/rfc3280.html
+ *
+ * MSDN, especially:
+ * http://msdn.microsoft.com/library/en-us/seccrypto/security/constants_for_cryptencodeobject_and_cryptdecodeobject.asp
+ */
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define NONAMELESSUNION
+
+#include "windef.h"
+#include "winbase.h"
+#include "excpt.h"
+#include "wincrypt.h"
+#include "winreg.h"
+#include "snmp.h"
+#include "wine/debug.h"
+#include "wine/exception.h"
+#include "crypt32_private.h"
+
+/* This is a bit arbitrary, but to set some limit: */
+#define MAX_ENCODED_LEN 0x02000000
+
+#define ASN_FLAGS_MASK 0xe0
+#define ASN_TYPE_MASK 0x1f
+
+WINE_DEFAULT_DEBUG_CHANNEL(crypt);
+
+struct GenericArray
+{
+ DWORD cItems;
+ BYTE *rgItems;
+};
+
+typedef BOOL (WINAPI *CryptDecodeObjectFunc)(DWORD, LPCSTR, const BYTE *,
+ DWORD, DWORD, void *, DWORD *);
+typedef BOOL (WINAPI *CryptDecodeObjectExFunc)(DWORD, LPCSTR, const BYTE *,
+ DWORD, DWORD, PCRYPT_DECODE_PARA, void *, DWORD *);
+
+/* Prototypes for built-in decoders. They follow the Ex style prototypes.
+ * The dwCertEncodingType and lpszStructType are ignored by the built-in
+ * functions, but the parameters are retained to simplify CryptDecodeObjectEx,
+ * since it must call functions in external DLLs that follow these signatures.
+ */
+static BOOL WINAPI CRYPT_AsnDecodeChoiceOfTime(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+static BOOL WINAPI CRYPT_AsnDecodePubKeyInfoInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+/* Like CRYPT_AsnDecodeExtensions, except assumes rgExtension is set ahead of
+ * time, doesn't do memory allocation, and doesn't do exception handling.
+ * (This isn't intended to be the externally-called one.)
+ */
+static BOOL WINAPI CRYPT_AsnDecodeExtensionsInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+/* Assumes algo->Parameters.pbData is set ahead of time. Internal func. */
+static BOOL WINAPI CRYPT_AsnDecodeAlgorithmId(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+/* Internal function */
+static BOOL WINAPI CRYPT_AsnDecodeBool(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+/* Assumes the CRYPT_DATA_BLOB's pbData member has been initialized */
+static BOOL WINAPI CRYPT_AsnDecodeOctetsInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+/* Like CRYPT_AsnDecodeBits, but assumes the CRYPT_INTEGER_BLOB's pbData
+ * member has been initialized, doesn't do exception handling, and doesn't do
+ * memory allocation.
+ */
+static BOOL WINAPI CRYPT_AsnDecodeBitsInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+static BOOL WINAPI CRYPT_AsnDecodeBits(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+static BOOL WINAPI CRYPT_AsnDecodeInt(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+/* Like CRYPT_AsnDecodeInteger, but assumes the CRYPT_INTEGER_BLOB's pbData
+ * member has been initialized, doesn't do exception handling, and doesn't do
+ * memory allocation.
+ */
+static BOOL WINAPI CRYPT_AsnDecodeIntegerInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
+/* Like CRYPT_AsnDecodeInteger, but unsigned. */
+static BOOL WINAPI CRYPT_AsnDecodeUnsignedIntegerInternal(
+ DWORD dwCertEncodingType, LPCSTR lpszStructType, const BYTE *pbEncoded,
+ DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
+ void *pvStructInfo, DWORD *pcbStructInfo);
+
+BOOL WINAPI CryptDecodeObject(DWORD dwCertEncodingType, LPCSTR lpszStructType,
+ const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo,
+ DWORD *pcbStructInfo)
+{
+ static HCRYPTOIDFUNCSET set = NULL;
+ BOOL ret = FALSE;
+ CryptDecodeObjectFunc pCryptDecodeObject;
+ HCRYPTOIDFUNCADDR hFunc;
+
+ TRACE("(0x%08lx, %s, %p, %ld, 0x%08lx, %p, %p)\n", dwCertEncodingType,
+ debugstr_a(lpszStructType), pbEncoded, cbEncoded, dwFlags,
+ pvStructInfo, pcbStructInfo);
+
+ if (!pvStructInfo && !pcbStructInfo)
+ {
+ SetLastError(ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
+
+ /* Try registered DLL first.. */
+ if (!set)
+ set = CryptInitOIDFunctionSet(CRYPT_OID_DECODE_OBJECT_FUNC, 0);
+ CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
+ (void **)&pCryptDecodeObject, &hFunc);
+ if (pCryptDecodeObject)
+ {
+ ret = pCryptDecodeObject(dwCertEncodingType, lpszStructType,
+ pbEncoded, cbEncoded, dwFlags, pvStructInfo, pcbStructInfo);
+ CryptFreeOIDFunctionAddress(hFunc, 0);
+ }
+ else
+ {
+ /* If not, use CryptDecodeObjectEx */
+ ret = CryptDecodeObjectEx(dwCertEncodingType, lpszStructType, pbEncoded,
+ cbEncoded, dwFlags, NULL, pvStructInfo, pcbStructInfo);
+ }
+ return ret;
+}
+
+/* Gets the number of length bytes from the given (leading) length byte */
+#define GET_LEN_BYTES(b) ((b) <= 0x7f ? 1 : 1 + ((b) & 0x7f))
+
+/* Helper function to get the encoded length of the data starting at pbEncoded,
+ * where pbEncoded[0] is the tag. If the data are too short to contain a
+ * length or if the length is too large for cbEncoded, sets an appropriate
+ * error code and returns FALSE.
+ */
+static BOOL WINAPI CRYPT_GetLen(const BYTE *pbEncoded, DWORD cbEncoded,
+ DWORD *len)
+{
+ BOOL ret;
+
+ if (cbEncoded <= 1)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else if (pbEncoded[1] <= 0x7f)
+ {
+ if (pbEncoded[1] + 1 > cbEncoded)
+ {
+ SetLastError(CRYPT_E_ASN1_EOD);
+ ret = FALSE;
+ }
+ else
+ {
+ *len = pbEncoded[1];
+ ret = TRUE;
+ }
+ }
+ else
+ {
+ BYTE lenLen = GET_LEN_BYTES(pbEncoded[1]);
+
+ if (lenLen > sizeof(DWORD) + 1)
+ {
+ SetLastError(CRYPT_E_ASN1_LARGE);
+ ret = FALSE;
+ }
+ else if (lenLen + 2 > cbEncoded)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else
+ {
+ DWORD out = 0;
+
+ pbEncoded += 2;
+ while (--lenLen)
+ {
+ out <<= 8;
+ out |= *pbEncoded++;
+ }
+ if (out + lenLen + 1 > cbEncoded)
+ {
+ SetLastError(CRYPT_E_ASN1_EOD);
+ ret = FALSE;
+ }
+ else
+ {
+ *len = out;
+ ret = TRUE;
+ }
+ }
+ }
+ return ret;
+}
+
+/* Helper function to check *pcbStructInfo, set it to the required size, and
+ * optionally to allocate memory. Assumes pvStructInfo is not NULL.
+ * If CRYPT_DECODE_ALLOC_FLAG is set in dwFlags, *pvStructInfo will be set to a
+ * pointer to the newly allocated memory.
+ */
+static BOOL CRYPT_DecodeEnsureSpace(DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo,
+ DWORD bytesNeeded)
+{
+ BOOL ret = TRUE;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ {
+ if (pDecodePara && pDecodePara->pfnAlloc)
+ *(BYTE **)pvStructInfo = pDecodePara->pfnAlloc(bytesNeeded);
+ else
+ *(BYTE **)pvStructInfo = LocalAlloc(0, bytesNeeded);
+ if (!*(BYTE **)pvStructInfo)
+ ret = FALSE;
+ else
+ *pcbStructInfo = bytesNeeded;
+ }
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ *pcbStructInfo = bytesNeeded;
+ SetLastError(ERROR_MORE_DATA);
+ ret = FALSE;
+ }
+ return ret;
+}
+
+/* tag:
+ * The expected tag of the item. If tag is 0, decodeFunc is called
+ * regardless of the tag value seen.
+ * offset:
+ * A sequence is decoded into a struct. The offset member is the
+ * offset of this item within that struct.
+ * decodeFunc:
+ * The decoder function to use. If this is NULL, then the member isn't
+ * decoded, but minSize space is reserved for it.
+ * minSize:
+ * The minimum amount of space occupied after decoding. You must set this.
+ * optional:
+ * If true, and the tag doesn't match the expected tag for this item,
+ * or the decodeFunc fails with CRYPT_E_ASN1_BADTAG, then minSize space is
+ * filled with 0 for this member.
+ * hasPointer, pointerOffset, minSize:
+ * If the item has dynamic data, set hasPointer to TRUE, pointerOffset to
+ * the offset within the (outer) struct of the data pointer (or to the
+ * first data pointer, if more than one exist).
+ * size:
+ * Used by CRYPT_AsnDecodeSequence, not for your use.
+ */
+struct AsnDecodeSequenceItem
+{
+ BYTE tag;
+ DWORD offset;
+ CryptDecodeObjectExFunc decodeFunc;
+ DWORD minSize;
+ BOOL optional;
+ BOOL hasPointer;
+ DWORD pointerOffset;
+ DWORD size;
+};
+
+static BOOL CRYPT_AsnDecodeSequenceItems(DWORD dwCertEncodingType,
+ struct AsnDecodeSequenceItem items[], DWORD cItem, const BYTE *pbEncoded,
+ DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, BYTE *nextData)
+{
+ BOOL ret;
+ DWORD i;
+ const BYTE *ptr;
+
+ ptr = pbEncoded + 1 + GET_LEN_BYTES(pbEncoded[1]);
+ for (i = 0, ret = TRUE; ret && i < cItem; i++)
+ {
+ if (cbEncoded - (ptr - pbEncoded) != 0)
+ {
+ DWORD nextItemLen;
+
+ if ((ret = CRYPT_GetLen(ptr, cbEncoded - (ptr - pbEncoded),
+ &nextItemLen)))
+ {
+ BYTE nextItemLenBytes = GET_LEN_BYTES(ptr[1]);
+
+ if (ptr[0] == items[i].tag || !items[i].tag)
+ {
+ if (nextData && pvStructInfo && items[i].hasPointer)
+ {
+ TRACE("Setting next pointer to %p\n",
+ nextData);
+ *(BYTE **)((BYTE *)pvStructInfo +
+ items[i].pointerOffset) = nextData;
+ }
+ if (items[i].decodeFunc)
+ {
+ if (pvStructInfo)
+ TRACE("decoding item %ld\n", i);
+ else
+ TRACE("sizing item %ld\n", i);
+ ret = items[i].decodeFunc(dwCertEncodingType,
+ NULL, ptr, 1 + nextItemLenBytes + nextItemLen,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL,
+ pvStructInfo ? (BYTE *)pvStructInfo + items[i].offset
+ : NULL, &items[i].size);
+ if (ret)
+ {
+ if (nextData && items[i].hasPointer &&
+ items[i].size > items[i].minSize)
+ {
+ nextData += items[i].size - items[i].minSize;
+ /* align nextData to DWORD boundaries */
+ if (items[i].size % sizeof(DWORD))
+ nextData += sizeof(DWORD) - items[i].size %
+ sizeof(DWORD);
+ }
+ /* Account for alignment padding */
+ if (items[i].size % sizeof(DWORD))
+ items[i].size += sizeof(DWORD) -
+ items[i].size % sizeof(DWORD);
+ ptr += 1 + nextItemLenBytes + nextItemLen;
+ }
+ else if (items[i].optional &&
+ GetLastError() == CRYPT_E_ASN1_BADTAG)
+ {
+ TRACE("skipping optional item %ld\n", i);
+ items[i].size = items[i].minSize;
+ SetLastError(NOERROR);
+ ret = TRUE;
+ }
+ else
+ TRACE("item %ld failed: %08lx\n", i,
+ GetLastError());
+ }
+ else
+ items[i].size = items[i].minSize;
+ }
+ else if (items[i].optional)
+ {
+ TRACE("skipping optional item %ld\n", i);
+ items[i].size = items[i].minSize;
+ }
+ else
+ {
+ TRACE("tag %02x doesn't match expected %02x\n",
+ ptr[0], items[i].tag);
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ }
+ }
+ else if (items[i].optional)
+ {
+ TRACE("missing optional item %ld, skipping\n", i);
+ items[i].size = items[i].minSize;
+ }
+ else
+ {
+ TRACE("not enough bytes for item %ld, failing\n", i);
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ }
+ if (cbEncoded - (ptr - pbEncoded) != 0)
+ {
+ TRACE("%ld remaining bytes, failing\n", cbEncoded -
+ (ptr - pbEncoded));
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ return ret;
+}
+
+/* This decodes an arbitrary sequence into a contiguous block of memory
+ * (basically, a struct.) Each element being decoded is described by a struct
+ * AsnDecodeSequenceItem, see above.
+ * startingPointer is an optional pointer to the first place where dynamic
+ * data will be stored. If you know the starting offset, you may pass it
+ * here. Otherwise, pass NULL, and one will be inferred from the items.
+ * Each item decoder is never called with CRYPT_DECODE_ALLOC_FLAG set.
+ * If any undecoded data are left over, fails with CRYPT_E_ASN1_CORRUPT.
+ */
+static BOOL CRYPT_AsnDecodeSequence(DWORD dwCertEncodingType,
+ struct AsnDecodeSequenceItem items[], DWORD cItem, const BYTE *pbEncoded,
+ DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
+ void *pvStructInfo, DWORD *pcbStructInfo, void *startingPointer)
+{
+ BOOL ret;
+
+ TRACE("%p, %ld, %p, %ld, %08lx, %p, %p, %ld, %p\n", items, cItem, pbEncoded,
+ cbEncoded, dwFlags, pDecodePara, pvStructInfo, *pcbStructInfo,
+ startingPointer);
+
+ if (pbEncoded[0] == ASN_SEQUENCE)
+ {
+ DWORD dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ DWORD i;
+
+ ret = CRYPT_AsnDecodeSequenceItems(dwFlags, items, cItem, pbEncoded,
+ cbEncoded, dwFlags, NULL, NULL);
+ if (ret)
+ {
+ DWORD bytesNeeded = 0, structSize = 0;
+
+ for (i = 0; i < cItem; i++)
+ {
+ bytesNeeded += items[i].size;
+ structSize += items[i].minSize;
+ }
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ BYTE *nextData;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ if (startingPointer)
+ nextData = (BYTE *)startingPointer;
+ else
+ nextData = (BYTE *)pvStructInfo + structSize;
+ memset(pvStructInfo, 0, structSize);
+ ret = CRYPT_AsnDecodeSequenceItems(dwFlags, items, cItem,
+ pbEncoded, cbEncoded, dwFlags, pvStructInfo, nextData);
+ }
+ }
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ TRACE("returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+/* tag:
+ * The expected tag of the entire encoded array (usually a variant
+ * of ASN_SETOF or ASN_SEQUENCEOF.)
+ * decodeFunc:
+ * used to decode each item in the array
+ * itemSize:
+ * is the minimum size of each decoded item
+ * hasPointer:
+ * indicates whether each item has a dynamic pointer
+ * pointerOffset:
+ * indicates the offset within itemSize at which the pointer exists
+ */
+struct AsnArrayDescriptor
+{
+ BYTE tag;
+ CryptDecodeObjectExFunc decodeFunc;
+ DWORD itemSize;
+ BOOL hasPointer;
+ DWORD pointerOffset;
+};
+
+struct AsnArrayItemSize
+{
+ DWORD encodedLen;
+ DWORD size;
+};
+
+/* Decodes an array of like types into a struct GenericArray.
+ * The layout and decoding of the array are described by a struct
+ * AsnArrayDescriptor.
+ */
+static BOOL CRYPT_AsnDecodeArray(const struct AsnArrayDescriptor *arrayDesc,
+ const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo,
+ void *startingPointer)
+{
+ BOOL ret = TRUE;
+
+ TRACE("%p, %p, %ld, %08lx, %p, %p, %ld, %p\n", arrayDesc, pbEncoded,
+ cbEncoded, dwFlags, pDecodePara, pvStructInfo, *pcbStructInfo,
+ startingPointer);
+
+ if (pbEncoded[0] == arrayDesc->tag)
+ {
+ DWORD dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ DWORD bytesNeeded, cItems = 0;
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+ /* There can be arbitrarily many items, but there is often only one.
+ */
+ struct AsnArrayItemSize itemSize = { 0 }, *itemSizes = &itemSize;
+
+ bytesNeeded = sizeof(struct GenericArray);
+ if (dataLen)
+ {
+ const BYTE *ptr;
+
+ for (ptr = pbEncoded + 1 + lenBytes; ret &&
+ ptr - pbEncoded - 1 - lenBytes < dataLen; )
+ {
+ DWORD itemLenBytes, itemDataLen, size;
+
+ itemLenBytes = GET_LEN_BYTES(ptr[1]);
+ /* Each item decoded may not tolerate extraneous bytes, so
+ * get the length of the next element and pass it directly.
+ */
+ ret = CRYPT_GetLen(ptr, cbEncoded - (ptr - pbEncoded),
+ &itemDataLen);
+ if (ret)
+ ret = arrayDesc->decodeFunc(X509_ASN_ENCODING, 0, ptr,
+ 1 + itemLenBytes + itemDataLen,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL,
+ &size);
+ if (ret)
+ {
+ DWORD nextLen;
+
+ cItems++;
+ if (itemSizes != &itemSize)
+ itemSizes = CryptMemRealloc(itemSizes,
+ cItems * sizeof(struct AsnArrayItemSize));
+ else
+ {
+ itemSizes =
+ CryptMemAlloc(
+ cItems * sizeof(struct AsnArrayItemSize));
+ memcpy(itemSizes, &itemSize, sizeof(itemSize));
+ }
+ if (itemSizes)
+ {
+ itemSizes[cItems - 1].encodedLen = 1 + itemLenBytes
+ + itemDataLen;
+ itemSizes[cItems - 1].size = size;
+ bytesNeeded += size;
+ ret = CRYPT_GetLen(ptr,
+ cbEncoded - (ptr - pbEncoded), &nextLen);
+ if (ret)
+ ptr += nextLen + 1 + GET_LEN_BYTES(ptr[1]);
+ }
+ else
+ ret = FALSE;
+ }
+ }
+ }
+ if (ret)
+ {
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ DWORD i;
+ BYTE *nextData;
+ const BYTE *ptr;
+ struct GenericArray *array;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ array = (struct GenericArray *)pvStructInfo;
+ array->cItems = cItems;
+ if (startingPointer)
+ array->rgItems = startingPointer;
+ else
+ array->rgItems = (BYTE *)array +
+ sizeof(struct GenericArray);
+ nextData = (BYTE *)array->rgItems +
+ array->cItems * arrayDesc->itemSize;
+ for (i = 0, ptr = pbEncoded + 1 + lenBytes; ret &&
+ i < cItems && ptr - pbEncoded - 1 - lenBytes <
+ dataLen; i++)
+ {
+ if (arrayDesc->hasPointer)
+ *(BYTE **)(array->rgItems + i * arrayDesc->itemSize
+ + arrayDesc->pointerOffset) = nextData;
+ ret = arrayDesc->decodeFunc(X509_ASN_ENCODING, 0, ptr,
+ itemSizes[i].encodedLen,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL,
+ array->rgItems + i * arrayDesc->itemSize,
+ &itemSizes[i].size);
+ if (ret)
+ {
+ DWORD nextLen;
+
+ nextData += itemSizes[i].size - arrayDesc->itemSize;
+ ret = CRYPT_GetLen(ptr,
+ cbEncoded - (ptr - pbEncoded), &nextLen);
+ if (ret)
+ ptr += nextLen + 1 + GET_LEN_BYTES(ptr[1]);
+ }
+ }
+ }
+ }
+ if (itemSizes != &itemSize)
+ CryptMemFree(itemSizes);
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ return ret;
+}
+
+/* Decodes a DER-encoded BLOB into a CRYPT_DER_BLOB struct pointed to by
+ * pvStructInfo. The BLOB must be non-empty, otherwise the last error is set
+ * to CRYPT_E_ASN1_CORRUPT.
+ * Warning: assumes the CRYPT_DER_BLOB pointed to by pvStructInfo has pbData
+ * set!
+ */
+static BOOL WINAPI CRYPT_AsnDecodeDerBlob(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+ DWORD dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+ DWORD bytesNeeded = sizeof(CRYPT_DER_BLOB);
+
+ if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
+ bytesNeeded += 1 + lenBytes + dataLen;
+
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ CRYPT_DER_BLOB *blob;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ blob = (CRYPT_DER_BLOB *)pvStructInfo;
+ blob->cbData = 1 + lenBytes + dataLen;
+ if (blob->cbData)
+ {
+ if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
+ blob->pbData = (BYTE *)pbEncoded;
+ else
+ {
+ assert(blob->pbData);
+ memcpy(blob->pbData, pbEncoded, blob->cbData);
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ }
+ }
+ return ret;
+}
+
+/* Like CRYPT_AsnDecodeBitsInternal, but swaps the bytes */
+static BOOL WINAPI CRYPT_AsnDecodeBitsSwapBytes(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ TRACE("(%p, %ld, 0x%08lx, %p, %p, %ld)\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ /* Can't use the CRYPT_DECODE_NOCOPY_FLAG, because we modify the bytes in-
+ * place.
+ */
+ ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType, lpszStructType,
+ pbEncoded, cbEncoded, dwFlags & ~CRYPT_DECODE_NOCOPY_FLAG, pDecodePara,
+ pvStructInfo, pcbStructInfo);
+ if (ret && pvStructInfo)
+ {
+ CRYPT_BIT_BLOB *blob = (CRYPT_BIT_BLOB *)pvStructInfo;
+
+ if (blob->cbData)
+ {
+ DWORD i;
+ BYTE temp;
+
+ for (i = 0; i < blob->cbData / 2; i++)
+ {
+ temp = blob->pbData[i];
+ blob->pbData[i] = blob->pbData[blob->cbData - i - 1];
+ blob->pbData[blob->cbData - i - 1] = temp;
+ }
+ }
+ }
+ TRACE("returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeCert(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ __TRY
+ {
+ struct AsnDecodeSequenceItem items[] = {
+ { 0, offsetof(CERT_SIGNED_CONTENT_INFO, ToBeSigned),
+ CRYPT_AsnDecodeDerBlob, sizeof(CRYPT_DER_BLOB), FALSE, TRUE,
+ offsetof(CERT_SIGNED_CONTENT_INFO, ToBeSigned.pbData), 0 },
+ { ASN_SEQUENCEOF, offsetof(CERT_SIGNED_CONTENT_INFO,
+ SignatureAlgorithm), CRYPT_AsnDecodeAlgorithmId,
+ sizeof(CRYPT_ALGORITHM_IDENTIFIER), FALSE, TRUE,
+ offsetof(CERT_SIGNED_CONTENT_INFO, SignatureAlgorithm.pszObjId), 0 },
+ { ASN_BITSTRING, offsetof(CERT_SIGNED_CONTENT_INFO, Signature),
+ CRYPT_AsnDecodeBitsSwapBytes, sizeof(CRYPT_BIT_BLOB), FALSE, TRUE,
+ offsetof(CERT_SIGNED_CONTENT_INFO, Signature.pbData), 0 },
+ };
+
+ if (dwFlags & CRYPT_DECODE_NO_SIGNATURE_BYTE_REVERSAL_FLAG)
+ items[2].decodeFunc = CRYPT_AsnDecodeBitsInternal;
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+/* Internal function */
+static BOOL WINAPI CRYPT_AsnDecodeCertVersion(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+ DWORD dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+
+ ret = CRYPT_AsnDecodeInt(dwCertEncodingType, X509_INTEGER,
+ pbEncoded + 1 + lenBytes, dataLen, dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo);
+ }
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeValidity(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ struct AsnDecodeSequenceItem items[] = {
+ { 0, offsetof(CERT_PRIVATE_KEY_VALIDITY, NotBefore),
+ CRYPT_AsnDecodeChoiceOfTime, sizeof(FILETIME), FALSE, FALSE, 0 },
+ { 0, offsetof(CERT_PRIVATE_KEY_VALIDITY, NotAfter),
+ CRYPT_AsnDecodeChoiceOfTime, sizeof(FILETIME), FALSE, FALSE, 0 },
+ };
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ return ret;
+}
+
+/* Internal function */
+static BOOL WINAPI CRYPT_AsnDecodeCertExtensions(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+ DWORD dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+
+ ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
+ X509_EXTENSIONS, pbEncoded + 1 + lenBytes, dataLen, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo);
+ }
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeCertInfo(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ __TRY
+ {
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_CONTEXT | ASN_CONSTRUCTOR, offsetof(CERT_INFO, dwVersion),
+ CRYPT_AsnDecodeCertVersion, sizeof(DWORD), TRUE, FALSE, 0, 0 },
+ { ASN_INTEGER, offsetof(CERT_INFO, SerialNumber),
+ CRYPT_AsnDecodeIntegerInternal, sizeof(CRYPT_INTEGER_BLOB), FALSE,
+ TRUE, offsetof(CERT_INFO, SerialNumber.pbData), 0 },
+ { ASN_SEQUENCEOF, offsetof(CERT_INFO, SignatureAlgorithm),
+ CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
+ FALSE, TRUE, offsetof(CERT_INFO, SignatureAlgorithm.pszObjId), 0 },
+ { 0, offsetof(CERT_INFO, Issuer), CRYPT_AsnDecodeDerBlob,
+ sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CERT_INFO,
+ Issuer.pbData) },
+ { ASN_SEQUENCEOF, offsetof(CERT_INFO, NotBefore),
+ CRYPT_AsnDecodeValidity, sizeof(CERT_PRIVATE_KEY_VALIDITY), FALSE,
+ FALSE, 0 },
+ { 0, offsetof(CERT_INFO, Subject), CRYPT_AsnDecodeDerBlob,
+ sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CERT_INFO,
+ Subject.pbData) },
+ { ASN_SEQUENCEOF, offsetof(CERT_INFO, SubjectPublicKeyInfo),
+ CRYPT_AsnDecodePubKeyInfoInternal, sizeof(CERT_PUBLIC_KEY_INFO),
+ FALSE, TRUE, offsetof(CERT_INFO,
+ SubjectPublicKeyInfo.Algorithm.Parameters.pbData), 0 },
+ { ASN_BITSTRING, offsetof(CERT_INFO, IssuerUniqueId),
+ CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
+ offsetof(CERT_INFO, IssuerUniqueId.pbData), 0 },
+ { ASN_BITSTRING, offsetof(CERT_INFO, SubjectUniqueId),
+ CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
+ offsetof(CERT_INFO, SubjectUniqueId.pbData), 0 },
+ { ASN_CONTEXT | ASN_CONSTRUCTOR | 3, offsetof(CERT_INFO, cExtension),
+ CRYPT_AsnDecodeCertExtensions, sizeof(CERT_EXTENSIONS), TRUE, TRUE,
+ offsetof(CERT_INFO, rgExtension), 0 },
+ };
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeCRLEntry(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_INTEGER, offsetof(CRL_ENTRY, SerialNumber),
+ CRYPT_AsnDecodeIntegerInternal, sizeof(CRYPT_INTEGER_BLOB), FALSE, TRUE,
+ offsetof(CRL_ENTRY, SerialNumber.pbData), 0 },
+ { 0, offsetof(CRL_ENTRY, RevocationDate), CRYPT_AsnDecodeChoiceOfTime,
+ sizeof(FILETIME), FALSE, FALSE, 0 },
+ { ASN_SEQUENCEOF, offsetof(CRL_ENTRY, cExtension),
+ CRYPT_AsnDecodeExtensionsInternal, sizeof(CERT_EXTENSIONS), TRUE, TRUE,
+ offsetof(CRL_ENTRY, rgExtension), 0 },
+ };
+ PCRL_ENTRY entry = (PCRL_ENTRY)pvStructInfo;
+
+ TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags, entry,
+ *pcbStructInfo);
+
+ ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ NULL, entry, pcbStructInfo, entry ? entry->SerialNumber.pbData : NULL);
+ return ret;
+}
+
+/* Warning: assumes pvStructInfo is a struct GenericArray whose rgItems has
+ * been set prior to calling.
+ */
+static BOOL WINAPI CRYPT_AsnDecodeCRLEntries(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+ struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
+ CRYPT_AsnDecodeCRLEntry, sizeof(CRL_ENTRY), TRUE,
+ offsetof(CRL_ENTRY, SerialNumber.pbData) };
+ struct GenericArray *entries = (struct GenericArray *)pvStructInfo;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo,
+ entries ? entries->rgItems : NULL);
+ TRACE("Returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeCRLInfo(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ __TRY
+ {
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_CONTEXT | ASN_CONSTRUCTOR, offsetof(CRL_INFO, dwVersion),
+ CRYPT_AsnDecodeCertVersion, sizeof(DWORD), TRUE, FALSE, 0, 0 },
+ { ASN_SEQUENCEOF, offsetof(CRL_INFO, SignatureAlgorithm),
+ CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
+ FALSE, TRUE, offsetof(CRL_INFO, SignatureAlgorithm.pszObjId), 0 },
+ { 0, offsetof(CRL_INFO, Issuer), CRYPT_AsnDecodeDerBlob,
+ sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CRL_INFO,
+ Issuer.pbData) },
+ { 0, offsetof(CRL_INFO, ThisUpdate), CRYPT_AsnDecodeChoiceOfTime,
+ sizeof(FILETIME), FALSE, FALSE, 0 },
+ { 0, offsetof(CRL_INFO, NextUpdate), CRYPT_AsnDecodeChoiceOfTime,
+ sizeof(FILETIME), TRUE, FALSE, 0 },
+ { ASN_SEQUENCEOF, offsetof(CRL_INFO, cCRLEntry),
+ CRYPT_AsnDecodeCRLEntries, sizeof(struct GenericArray), TRUE, TRUE,
+ offsetof(CRL_INFO, rgCRLEntry), 0 },
+ /* Note that the extensions are ignored by MS, so I'll ignore them too
+ */
+ { 0, offsetof(CRL_INFO, cExtension), NULL,
+ sizeof(CERT_EXTENSIONS), TRUE, FALSE, 0 },
+ };
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+
+ TRACE("Returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeOidInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ if (pbEncoded[0] == ASN_OBJECTIDENTIFIER)
+ {
+ DWORD dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+ DWORD bytesNeeded = sizeof(LPSTR);
+
+ if (dataLen)
+ {
+ /* The largest possible string for the first two components
+ * is 2.175 (= 2 * 40 + 175 = 255), so this is big enough.
+ */
+ char firstTwo[6];
+ const BYTE *ptr;
+
+ snprintf(firstTwo, sizeof(firstTwo), "%d.%d",
+ pbEncoded[1 + lenBytes] / 40,
+ pbEncoded[1 + lenBytes] - (pbEncoded[1 + lenBytes] / 40)
+ * 40);
+ bytesNeeded += strlen(firstTwo) + 1;
+ for (ptr = pbEncoded + 2 + lenBytes; ret &&
+ ptr - pbEncoded - 1 - lenBytes < dataLen; )
+ {
+ /* large enough for ".4000000" */
+ char str[9];
+ int val = 0;
+
+ while (ptr - pbEncoded - 1 - lenBytes < dataLen &&
+ (*ptr & 0x80))
+ {
+ val <<= 7;
+ val |= *ptr & 0x7f;
+ ptr++;
+ }
+ if (ptr - pbEncoded - 1 - lenBytes >= dataLen ||
+ (*ptr & 0x80))
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else
+ {
+ val <<= 7;
+ val |= *ptr++;
+ snprintf(str, sizeof(str), ".%d", val);
+ bytesNeeded += strlen(str);
+ }
+ }
+ }
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ *pcbStructInfo = bytesNeeded;
+ SetLastError(ERROR_MORE_DATA);
+ ret = FALSE;
+ }
+ else
+ {
+ if (dataLen)
+ {
+ const BYTE *ptr;
+ LPSTR pszObjId = *(LPSTR *)pvStructInfo;
+
+ *pszObjId = 0;
+ sprintf(pszObjId, "%d.%d", pbEncoded[1 + lenBytes] / 40,
+ pbEncoded[1 + lenBytes] - (pbEncoded[1 + lenBytes] /
+ 40) * 40);
+ pszObjId += strlen(pszObjId);
+ for (ptr = pbEncoded + 2 + lenBytes; ret &&
+ ptr - pbEncoded - 1 - lenBytes < dataLen; )
+ {
+ int val = 0;
+
+ while (ptr - pbEncoded - 1 - lenBytes < dataLen &&
+ (*ptr & 0x80))
+ {
+ val <<= 7;
+ val |= *ptr & 0x7f;
+ ptr++;
+ }
+ val <<= 7;
+ val |= *ptr++;
+ sprintf(pszObjId, ".%d", val);
+ pszObjId += strlen(pszObjId);
+ }
+ }
+ else
+ *(LPSTR *)pvStructInfo = NULL;
+ *pcbStructInfo = bytesNeeded;
+ }
+ }
+ }
+ return ret;
+}
+
+/* Warning: assumes pvStructInfo is a CERT_EXTENSION whose pszObjId is set
+ * ahead of time!
+ */
+static BOOL WINAPI CRYPT_AsnDecodeExtension(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_OBJECTIDENTIFIER, offsetof(CERT_EXTENSION, pszObjId),
+ CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
+ offsetof(CERT_EXTENSION, pszObjId), 0 },
+ { ASN_BOOL, offsetof(CERT_EXTENSION, fCritical), CRYPT_AsnDecodeBool,
+ sizeof(BOOL), TRUE, FALSE, 0, 0 },
+ { ASN_OCTETSTRING, offsetof(CERT_EXTENSION, Value),
+ CRYPT_AsnDecodeOctetsInternal, sizeof(CRYPT_OBJID_BLOB), FALSE, TRUE,
+ offsetof(CERT_EXTENSION, Value.pbData) },
+ };
+ BOOL ret = TRUE;
+ PCERT_EXTENSION ext = (PCERT_EXTENSION)pvStructInfo;
+
+ TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags, ext,
+ *pcbStructInfo);
+
+ if (ext)
+ TRACE("ext->pszObjId is %p\n", ext->pszObjId);
+ ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags, NULL,
+ ext, pcbStructInfo, ext ? ext->pszObjId : NULL);
+ if (ext)
+ TRACE("ext->pszObjId is %p (%s)\n", ext->pszObjId,
+ debugstr_a(ext->pszObjId));
+ TRACE("returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeExtensionsInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+ struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
+ CRYPT_AsnDecodeExtension, sizeof(CERT_EXTENSION), TRUE,
+ offsetof(CERT_EXTENSION, pszObjId) };
+ PCERT_EXTENSIONS exts = (PCERT_EXTENSIONS)pvStructInfo;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, exts ? exts->rgExtension : NULL);
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeExtensions(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ __TRY
+ {
+ ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, pcbStructInfo);
+ if (ret && pvStructInfo)
+ {
+ ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara, pvStructInfo,
+ pcbStructInfo, *pcbStructInfo);
+ if (ret)
+ {
+ CERT_EXTENSIONS *exts;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ exts = (CERT_EXTENSIONS *)pvStructInfo;
+ exts->rgExtension = (CERT_EXTENSION *)((BYTE *)exts +
+ sizeof(CERT_EXTENSIONS));
+ ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
+ pcbStructInfo);
+ }
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+/* Warning: this assumes the address of value->Value.pbData is already set, in
+ * order to avoid overwriting memory. (In some cases, it may change it, if it
+ * doesn't copy anything to memory.) Be sure to set it correctly!
+ */
+static BOOL WINAPI CRYPT_AsnDecodeNameValue(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ __TRY
+ {
+ DWORD dataLen;
+ CERT_NAME_VALUE *value = (CERT_NAME_VALUE *)pvStructInfo;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+
+ switch (pbEncoded[0])
+ {
+ case ASN_NUMERICSTRING:
+ case ASN_PRINTABLESTRING:
+ case ASN_IA5STRING:
+ break;
+ default:
+ FIXME("Unimplemented string type %02x\n", pbEncoded[0]);
+ SetLastError(OSS_UNIMPLEMENTED);
+ ret = FALSE;
+ }
+ if (ret)
+ {
+ DWORD bytesNeeded = sizeof(CERT_NAME_VALUE);
+
+ switch (pbEncoded[0])
+ {
+ case ASN_NUMERICSTRING:
+ case ASN_PRINTABLESTRING:
+ case ASN_IA5STRING:
+ if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
+ bytesNeeded += dataLen;
+ break;
+ }
+ if (!value)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ *pcbStructInfo = bytesNeeded;
+ SetLastError(ERROR_MORE_DATA);
+ ret = FALSE;
+ }
+ else
+ {
+ *pcbStructInfo = bytesNeeded;
+ switch (pbEncoded[0])
+ {
+ case ASN_NUMERICSTRING:
+ value->dwValueType = CERT_RDN_NUMERIC_STRING;
+ break;
+ case ASN_PRINTABLESTRING:
+ value->dwValueType = CERT_RDN_PRINTABLE_STRING;
+ break;
+ case ASN_IA5STRING:
+ value->dwValueType = CERT_RDN_IA5_STRING;
+ break;
+ }
+ if (dataLen)
+ {
+ switch (pbEncoded[0])
+ {
+ case ASN_NUMERICSTRING:
+ case ASN_PRINTABLESTRING:
+ case ASN_IA5STRING:
+ value->Value.cbData = dataLen;
+ if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
+ value->Value.pbData = (BYTE *)pbEncoded + 1 +
+ lenBytes;
+ else
+ {
+ assert(value->Value.pbData);
+ memcpy(value->Value.pbData,
+ pbEncoded + 1 + lenBytes, dataLen);
+ }
+ break;
+ }
+ }
+ else
+ {
+ value->Value.cbData = 0;
+ value->Value.pbData = NULL;
+ }
+ }
+ }
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeRdnAttr(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pvStructInfo, *pcbStructInfo);
+
+ __TRY
+ {
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_OBJECTIDENTIFIER, offsetof(CERT_RDN_ATTR, pszObjId),
+ CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
+ offsetof(CERT_RDN_ATTR, pszObjId), 0 },
+ { 0, offsetof(CERT_RDN_ATTR, dwValueType), CRYPT_AsnDecodeNameValue,
+ sizeof(CERT_NAME_VALUE), FALSE, TRUE, offsetof(CERT_RDN_ATTR,
+ Value.pbData), 0 },
+ };
+ CERT_RDN_ATTR *attr = (CERT_RDN_ATTR *)pvStructInfo;
+
+ if (attr)
+ TRACE("attr->pszObjId is %p\n", attr->pszObjId);
+ ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags, NULL,
+ attr, pcbStructInfo, attr ? attr->pszObjId : NULL);
+ if (attr)
+ {
+ TRACE("attr->pszObjId is %p (%s)\n", attr->pszObjId,
+ debugstr_a(attr->pszObjId));
+ TRACE("attr->dwValueType is %ld\n", attr->dwValueType);
+ }
+ TRACE("returning %d (%08lx)\n", ret, GetLastError());
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeRdn(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ __TRY
+ {
+ struct AsnArrayDescriptor arrayDesc = { ASN_CONSTRUCTOR | ASN_SETOF,
+ CRYPT_AsnDecodeRdnAttr, sizeof(CERT_RDN_ATTR), TRUE,
+ offsetof(CERT_RDN_ATTR, pszObjId) };
+ PCERT_RDN rdn = (PCERT_RDN)pvStructInfo;
+
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, rdn ? rdn->rgRDNAttr : NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeName(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ __TRY
+ {
+ struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
+ CRYPT_AsnDecodeRdn, sizeof(CERT_RDN), TRUE,
+ offsetof(CERT_RDN, rgRDNAttr) };
+
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeCopyBytes(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+ DWORD bytesNeeded = sizeof(CRYPT_OBJID_BLOB);
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
+ bytesNeeded += cbEncoded;
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ SetLastError(ERROR_MORE_DATA);
+ *pcbStructInfo = bytesNeeded;
+ ret = FALSE;
+ }
+ else
+ {
+ PCRYPT_OBJID_BLOB blob = (PCRYPT_OBJID_BLOB)pvStructInfo;
+
+ *pcbStructInfo = bytesNeeded;
+ blob->cbData = cbEncoded;
+ if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
+ blob->pbData = (LPBYTE)pbEncoded;
+ else
+ {
+ assert(blob->pbData);
+ memcpy(blob->pbData, pbEncoded, blob->cbData);
+ }
+ }
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeAlgorithmId(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ CRYPT_ALGORITHM_IDENTIFIER *algo =
+ (CRYPT_ALGORITHM_IDENTIFIER *)pvStructInfo;
+ BOOL ret = TRUE;
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_OBJECTIDENTIFIER, offsetof(CRYPT_ALGORITHM_IDENTIFIER, pszObjId),
+ CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
+ offsetof(CRYPT_ALGORITHM_IDENTIFIER, pszObjId), 0 },
+ { 0, offsetof(CRYPT_ALGORITHM_IDENTIFIER, Parameters),
+ CRYPT_AsnDecodeCopyBytes, sizeof(CRYPT_OBJID_BLOB), TRUE, TRUE,
+ offsetof(CRYPT_ALGORITHM_IDENTIFIER, Parameters.pbData), 0 },
+ };
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, algo ? algo->pszObjId : NULL);
+ if (ret && pvStructInfo)
+ {
+ TRACE("pszObjId is %p (%s)\n", algo->pszObjId,
+ debugstr_a(algo->pszObjId));
+ }
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodePubKeyInfoInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_SEQUENCEOF, offsetof(CERT_PUBLIC_KEY_INFO, Algorithm),
+ CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
+ FALSE, TRUE, offsetof(CERT_PUBLIC_KEY_INFO,
+ Algorithm.pszObjId) },
+ { ASN_BITSTRING, offsetof(CERT_PUBLIC_KEY_INFO, PublicKey),
+ CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), FALSE, TRUE,
+ offsetof(CERT_PUBLIC_KEY_INFO, PublicKey.pbData) },
+ };
+ PCERT_PUBLIC_KEY_INFO info = (PCERT_PUBLIC_KEY_INFO)pvStructInfo;
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, info ?
+ info->Algorithm.Parameters.pbData : NULL);
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodePubKeyInfo(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ __TRY
+ {
+ DWORD bytesNeeded;
+
+ if ((ret = CRYPT_AsnDecodePubKeyInfoInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
+ {
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ PCERT_PUBLIC_KEY_INFO info;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ info = (PCERT_PUBLIC_KEY_INFO)pvStructInfo;
+ info->Algorithm.Parameters.pbData = (BYTE *)pvStructInfo +
+ sizeof(CERT_PUBLIC_KEY_INFO);
+ ret = CRYPT_AsnDecodePubKeyInfoInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
+ &bytesNeeded);
+ }
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeBool(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ if (cbEncoded < 3)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ return FALSE;
+ }
+ if (GET_LEN_BYTES(pbEncoded[1]) > 1)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ return FALSE;
+ }
+ if (pbEncoded[1] > 1)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ return FALSE;
+ }
+ if (!pvStructInfo)
+ {
+ *pcbStructInfo = sizeof(BOOL);
+ ret = TRUE;
+ }
+ else if (*pcbStructInfo < sizeof(BOOL))
+ {
+ *pcbStructInfo = sizeof(BOOL);
+ SetLastError(ERROR_MORE_DATA);
+ ret = FALSE;
+ }
+ else
+ {
+ *(BOOL *)pvStructInfo = pbEncoded[2] ? TRUE : FALSE;
+ ret = TRUE;
+ }
+ TRACE("returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeAltNameEntry(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ PCERT_ALT_NAME_ENTRY entry = (PCERT_ALT_NAME_ENTRY)pvStructInfo;
+ DWORD dataLen, lenBytes, bytesNeeded = sizeof(CERT_ALT_NAME_ENTRY);
+ BOOL ret;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ if (cbEncoded < 2)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ return FALSE;
+ }
+ if ((pbEncoded[0] & ASN_FLAGS_MASK) != ASN_CONTEXT)
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ return FALSE;
+ }
+ lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+ if (1 + lenBytes > cbEncoded)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ return FALSE;
+ }
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ switch (pbEncoded[0] & ASN_TYPE_MASK)
+ {
+ case 1: /* rfc822Name */
+ case 2: /* dNSName */
+ case 6: /* uniformResourceIdentifier */
+ bytesNeeded += (dataLen + 1) * sizeof(WCHAR);
+ break;
+ case 7: /* iPAddress */
+ bytesNeeded += dataLen;
+ break;
+ case 8: /* registeredID */
+ /* FIXME: decode as OID */
+ case 0: /* otherName */
+ case 4: /* directoryName */
+ FIXME("stub\n");
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ break;
+ case 3: /* x400Address, unimplemented */
+ case 5: /* ediPartyName, unimplemented */
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ break;
+ default:
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ if (ret)
+ {
+ if (!entry)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ *pcbStructInfo = bytesNeeded;
+ SetLastError(ERROR_MORE_DATA);
+ ret = FALSE;
+ }
+ else
+ {
+ *pcbStructInfo = bytesNeeded;
+ /* MS used values one greater than the asn1 ones.. sigh */
+ entry->dwAltNameChoice = (pbEncoded[0] & 0x7f) + 1;
+ switch (pbEncoded[0] & ASN_TYPE_MASK)
+ {
+ case 1: /* rfc822Name */
+ case 2: /* dNSName */
+ case 6: /* uniformResourceIdentifier */
+ {
+ DWORD i;
+
+ for (i = 0; i < dataLen; i++)
+ entry->u.pwszURL[i] =
+ (WCHAR)pbEncoded[1 + lenBytes + i];
+ entry->u.pwszURL[i] = 0;
+ TRACE("URL is %p (%s)\n", entry->u.pwszURL,
+ debugstr_w(entry->u.pwszURL));
+ break;
+ }
+ case 7: /* iPAddress */
+ /* The next data pointer is in the pwszURL spot, that is,
+ * the first 4 bytes. Need to move it to the next spot.
+ */
+ entry->u.IPAddress.pbData = (LPBYTE)entry->u.pwszURL;
+ entry->u.IPAddress.cbData = dataLen;
+ memcpy(entry->u.IPAddress.pbData, pbEncoded + 1 + lenBytes,
+ dataLen);
+ break;
+ }
+ }
+ }
+ }
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeAltNameInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+ struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
+ CRYPT_AsnDecodeAltNameEntry, sizeof(CERT_ALT_NAME_ENTRY), TRUE,
+ offsetof(CERT_ALT_NAME_ENTRY, u.pwszURL) };
+ PCERT_ALT_NAME_INFO info = (PCERT_ALT_NAME_INFO)pvStructInfo;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ if (info)
+ TRACE("info->rgAltEntry is %p\n", info->rgAltEntry);
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, info ? info->rgAltEntry : NULL);
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeAltName(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ __TRY
+ {
+ struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
+ CRYPT_AsnDecodeAltNameEntry, sizeof(CERT_ALT_NAME_ENTRY), TRUE,
+ offsetof(CERT_ALT_NAME_ENTRY, u.pwszURL) };
+
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+struct PATH_LEN_CONSTRAINT
+{
+ BOOL fPathLenConstraint;
+ DWORD dwPathLenConstraint;
+};
+
+static BOOL WINAPI CRYPT_AsnDecodePathLenConstraint(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pvStructInfo, *pcbStructInfo);
+
+ if (cbEncoded)
+ {
+ if (pbEncoded[0] == ASN_INTEGER)
+ {
+ DWORD bytesNeeded = sizeof(struct PATH_LEN_CONSTRAINT);
+
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ SetLastError(ERROR_MORE_DATA);
+ *pcbStructInfo = bytesNeeded;
+ ret = FALSE;
+ }
+ else
+ {
+ struct PATH_LEN_CONSTRAINT *constraint =
+ (struct PATH_LEN_CONSTRAINT *)pvStructInfo;
+ DWORD size = sizeof(constraint->dwPathLenConstraint);
+
+ ret = CRYPT_AsnDecodeInt(dwCertEncodingType, X509_INTEGER,
+ pbEncoded, cbEncoded, 0, NULL,
+ &constraint->dwPathLenConstraint, &size);
+ if (ret)
+ constraint->fPathLenConstraint = TRUE;
+ TRACE("got an int, dwPathLenConstraint is %ld\n",
+ constraint->dwPathLenConstraint);
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ }
+ TRACE("returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeSubtreeConstraints(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+ struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
+ CRYPT_AsnDecodeCopyBytes, sizeof(CERT_NAME_BLOB), TRUE,
+ offsetof(CERT_NAME_BLOB, pbData) };
+ struct GenericArray *entries = (struct GenericArray *)pvStructInfo;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo,
+ entries ? entries->rgItems : NULL);
+ TRACE("Returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeBasicConstraints(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ __TRY
+ {
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_BITSTRING, offsetof(CERT_BASIC_CONSTRAINTS_INFO, SubjectType),
+ CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), FALSE, TRUE,
+ offsetof(CERT_BASIC_CONSTRAINTS_INFO, SubjectType.pbData), 0 },
+ { ASN_INTEGER, offsetof(CERT_BASIC_CONSTRAINTS_INFO,
+ fPathLenConstraint), CRYPT_AsnDecodePathLenConstraint,
+ sizeof(struct PATH_LEN_CONSTRAINT), TRUE, FALSE, 0, 0 },
+ { ASN_SEQUENCEOF, offsetof(CERT_BASIC_CONSTRAINTS_INFO,
+ cSubtreesConstraint), CRYPT_AsnDecodeSubtreeConstraints,
+ sizeof(struct GenericArray), TRUE, TRUE,
+ offsetof(CERT_BASIC_CONSTRAINTS_INFO, rgSubtreesConstraint), 0 },
+ };
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeBasicConstraints2(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ __TRY
+ {
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_BOOL, offsetof(CERT_BASIC_CONSTRAINTS2_INFO, fCA),
+ CRYPT_AsnDecodeBool, sizeof(BOOL), TRUE, FALSE, 0, 0 },
+ { ASN_INTEGER, offsetof(CERT_BASIC_CONSTRAINTS2_INFO,
+ fPathLenConstraint), CRYPT_AsnDecodePathLenConstraint,
+ sizeof(struct PATH_LEN_CONSTRAINT), TRUE, FALSE, 0, 0 },
+ };
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+#define RSA1_MAGIC 0x31415352
+
+struct DECODED_RSA_PUB_KEY
+{
+ DWORD pubexp;
+ CRYPT_INTEGER_BLOB modulus;
+};
+
+static BOOL WINAPI CRYPT_AsnDecodeRsaPubKey(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ __TRY
+ {
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_INTEGER, offsetof(struct DECODED_RSA_PUB_KEY, modulus),
+ CRYPT_AsnDecodeUnsignedIntegerInternal, sizeof(CRYPT_INTEGER_BLOB),
+ FALSE, TRUE, offsetof(struct DECODED_RSA_PUB_KEY, modulus.pbData),
+ 0 },
+ { ASN_INTEGER, offsetof(struct DECODED_RSA_PUB_KEY, pubexp),
+ CRYPT_AsnDecodeInt, sizeof(DWORD), FALSE, FALSE, 0, 0 },
+ };
+ struct DECODED_RSA_PUB_KEY *decodedKey = NULL;
+ DWORD size = 0;
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded,
+ CRYPT_DECODE_ALLOC_FLAG, NULL, &decodedKey, &size, NULL);
+ if (ret)
+ {
+ DWORD bytesNeeded = sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) +
+ decodedKey->modulus.cbData;
+
+ if (!pvStructInfo)
+ {
+ *pcbStructInfo = bytesNeeded;
+ ret = TRUE;
+ }
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ BLOBHEADER *hdr;
+ RSAPUBKEY *rsaPubKey;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ hdr = (BLOBHEADER *)pvStructInfo;
+ hdr->bType = PUBLICKEYBLOB;
+ hdr->bVersion = CUR_BLOB_VERSION;
+ hdr->reserved = 0;
+ hdr->aiKeyAlg = CALG_RSA_KEYX;
+ rsaPubKey = (RSAPUBKEY *)((BYTE *)pvStructInfo +
+ sizeof(BLOBHEADER));
+ rsaPubKey->magic = RSA1_MAGIC;
+ rsaPubKey->pubexp = decodedKey->pubexp;
+ rsaPubKey->bitlen = decodedKey->modulus.cbData * 8;
+ memcpy((BYTE *)pvStructInfo + sizeof(BLOBHEADER) +
+ sizeof(RSAPUBKEY), decodedKey->modulus.pbData,
+ decodedKey->modulus.cbData);
+ }
+ LocalFree(decodedKey);
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeOctetsInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+ DWORD bytesNeeded, dataLen;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
+ bytesNeeded = sizeof(CRYPT_DATA_BLOB);
+ else
+ bytesNeeded = dataLen + sizeof(CRYPT_DATA_BLOB);
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ SetLastError(ERROR_MORE_DATA);
+ *pcbStructInfo = bytesNeeded;
+ ret = FALSE;
+ }
+ else
+ {
+ CRYPT_DATA_BLOB *blob;
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+
+ blob = (CRYPT_DATA_BLOB *)pvStructInfo;
+ blob->cbData = dataLen;
+ if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
+ blob->pbData = (BYTE *)pbEncoded + 1 + lenBytes;
+ else
+ {
+ assert(blob->pbData);
+ if (blob->cbData)
+ memcpy(blob->pbData, pbEncoded + 1 + lenBytes,
+ blob->cbData);
+ }
+ }
+ }
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeOctets(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ __TRY
+ {
+ DWORD bytesNeeded;
+
+ if (!cbEncoded)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else if (pbEncoded[0] != ASN_OCTETSTRING)
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ else if ((ret = CRYPT_AsnDecodeOctetsInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
+ {
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ CRYPT_DATA_BLOB *blob;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ blob = (CRYPT_DATA_BLOB *)pvStructInfo;
+ blob->pbData = (BYTE *)pvStructInfo + sizeof(CRYPT_DATA_BLOB);
+ ret = CRYPT_AsnDecodeOctetsInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
+ &bytesNeeded);
+ }
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeBitsInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ TRACE("(%p, %ld, 0x%08lx, %p, %p, %ld)\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ if (pbEncoded[0] == ASN_BITSTRING)
+ {
+ DWORD bytesNeeded, dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
+ bytesNeeded = sizeof(CRYPT_BIT_BLOB);
+ else
+ bytesNeeded = dataLen - 1 + sizeof(CRYPT_BIT_BLOB);
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ *pcbStructInfo = bytesNeeded;
+ SetLastError(ERROR_MORE_DATA);
+ ret = FALSE;
+ }
+ else
+ {
+ CRYPT_BIT_BLOB *blob;
+
+ blob = (CRYPT_BIT_BLOB *)pvStructInfo;
+ blob->cbData = dataLen - 1;
+ blob->cUnusedBits = *(pbEncoded + 1 +
+ GET_LEN_BYTES(pbEncoded[1]));
+ if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
+ {
+ blob->pbData = (BYTE *)pbEncoded + 2 +
+ GET_LEN_BYTES(pbEncoded[1]);
+ }
+ else
+ {
+ assert(blob->pbData);
+ if (blob->cbData)
+ {
+ BYTE mask = 0xff << blob->cUnusedBits;
+
+ memcpy(blob->pbData, pbEncoded + 2 +
+ GET_LEN_BYTES(pbEncoded[1]), blob->cbData);
+ blob->pbData[blob->cbData - 1] &= mask;
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ TRACE("returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeBits(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ TRACE("(%p, %ld, 0x%08lx, %p, %p, %p)\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo);
+
+ __TRY
+ {
+ DWORD bytesNeeded;
+
+ if ((ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
+ {
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ CRYPT_BIT_BLOB *blob;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ blob = (CRYPT_BIT_BLOB *)pvStructInfo;
+ blob->pbData = (BYTE *)pvStructInfo + sizeof(CRYPT_BIT_BLOB);
+ ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
+ &bytesNeeded);
+ }
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ TRACE("returning %d (%08lx)\n", ret, GetLastError());
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeInt(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ if (!pvStructInfo)
+ {
+ *pcbStructInfo = sizeof(int);
+ return TRUE;
+ }
+ __TRY
+ {
+ BYTE buf[sizeof(CRYPT_INTEGER_BLOB) + sizeof(int)];
+ CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)buf;
+ DWORD size = sizeof(buf);
+
+ blob->pbData = buf + sizeof(CRYPT_INTEGER_BLOB);
+ ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
+ X509_MULTI_BYTE_INTEGER, pbEncoded, cbEncoded, 0, NULL, &buf, &size);
+ if (ret)
+ {
+ if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, sizeof(int))))
+ {
+ int val, i;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ if (blob->pbData[blob->cbData - 1] & 0x80)
+ {
+ /* initialize to a negative value to sign-extend */
+ val = -1;
+ }
+ else
+ val = 0;
+ for (i = 0; i < blob->cbData; i++)
+ {
+ val <<= 8;
+ val |= blob->pbData[blob->cbData - i - 1];
+ }
+ memcpy(pvStructInfo, &val, sizeof(int));
+ }
+ }
+ else if (GetLastError() == ERROR_MORE_DATA)
+ SetLastError(CRYPT_E_ASN1_LARGE);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeIntegerInternal(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ if (pbEncoded[0] == ASN_INTEGER)
+ {
+ DWORD bytesNeeded, dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+
+ bytesNeeded = dataLen + sizeof(CRYPT_INTEGER_BLOB);
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ *pcbStructInfo = bytesNeeded;
+ SetLastError(ERROR_MORE_DATA);
+ ret = FALSE;
+ }
+ else
+ {
+ CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
+
+ blob->cbData = dataLen;
+ assert(blob->pbData);
+ if (blob->cbData)
+ {
+ DWORD i;
+
+ for (i = 0; i < blob->cbData; i++)
+ {
+ blob->pbData[i] = *(pbEncoded + 1 + lenBytes +
+ dataLen - i - 1);
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeInteger(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ __TRY
+ {
+ DWORD bytesNeeded;
+
+ if ((ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
+ {
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ CRYPT_INTEGER_BLOB *blob;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
+ blob->pbData = (BYTE *)pvStructInfo +
+ sizeof(CRYPT_INTEGER_BLOB);
+ ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, pvStructInfo,
+ &bytesNeeded);
+ }
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeUnsignedIntegerInternal(
+ DWORD dwCertEncodingType, LPCSTR lpszStructType, const BYTE *pbEncoded,
+ DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
+ void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ if (pbEncoded[0] == ASN_INTEGER)
+ {
+ DWORD bytesNeeded, dataLen;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+
+ bytesNeeded = dataLen + sizeof(CRYPT_INTEGER_BLOB);
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if (*pcbStructInfo < bytesNeeded)
+ {
+ *pcbStructInfo = bytesNeeded;
+ SetLastError(ERROR_MORE_DATA);
+ ret = FALSE;
+ }
+ else
+ {
+ CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
+
+ blob->cbData = dataLen;
+ assert(blob->pbData);
+ /* remove leading zero byte if it exists */
+ if (blob->cbData && *(pbEncoded + 1 + lenBytes) == 0)
+ {
+ blob->cbData--;
+ blob->pbData++;
+ }
+ if (blob->cbData)
+ {
+ DWORD i;
+
+ for (i = 0; i < blob->cbData; i++)
+ {
+ blob->pbData[i] = *(pbEncoded + 1 + lenBytes +
+ dataLen - i - 1);
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeUnsignedInteger(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ __TRY
+ {
+ DWORD bytesNeeded;
+
+ if ((ret = CRYPT_AsnDecodeUnsignedIntegerInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
+ {
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ CRYPT_INTEGER_BLOB *blob;
+
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
+ blob->pbData = (BYTE *)pvStructInfo +
+ sizeof(CRYPT_INTEGER_BLOB);
+ ret = CRYPT_AsnDecodeUnsignedIntegerInternal(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded,
+ dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, pvStructInfo,
+ &bytesNeeded);
+ }
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeEnumerated(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ if (!pvStructInfo)
+ {
+ *pcbStructInfo = sizeof(int);
+ return TRUE;
+ }
+ __TRY
+ {
+ if (pbEncoded[0] == ASN_ENUMERATED)
+ {
+ unsigned int val = 0, i;
+
+ if (cbEncoded <= 1)
+ {
+ SetLastError(CRYPT_E_ASN1_EOD);
+ ret = FALSE;
+ }
+ else if (pbEncoded[1] == 0)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else
+ {
+ /* A little strange looking, but we have to accept a sign byte:
+ * 0xffffffff gets encoded as 0a 05 00 ff ff ff ff. Also,
+ * assuming a small length is okay here, it has to be in short
+ * form.
+ */
+ if (pbEncoded[1] > sizeof(unsigned int) + 1)
+ {
+ SetLastError(CRYPT_E_ASN1_LARGE);
+ return FALSE;
+ }
+ for (i = 0; i < pbEncoded[1]; i++)
+ {
+ val <<= 8;
+ val |= pbEncoded[2 + i];
+ }
+ if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, sizeof(unsigned int))))
+ {
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ memcpy(pvStructInfo, &val, sizeof(unsigned int));
+ }
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+/* Modifies word, pbEncoded, and len, and magically sets a value ret to FALSE
+ * if it fails.
+ */
+#define CRYPT_TIME_GET_DIGITS(pbEncoded, len, numDigits, word) \
+ do { \
+ BYTE i; \
+ \
+ (word) = 0; \
+ for (i = 0; (len) > 0 && i < (numDigits); i++, (len)--) \
+ { \
+ if (!isdigit(*(pbEncoded))) \
+ { \
+ SetLastError(CRYPT_E_ASN1_CORRUPT); \
+ ret = FALSE; \
+ } \
+ else \
+ { \
+ (word) *= 10; \
+ (word) += *(pbEncoded)++ - '0'; \
+ } \
+ } \
+ } while (0)
+
+static BOOL CRYPT_AsnDecodeTimeZone(const BYTE *pbEncoded, DWORD len,
+ SYSTEMTIME *sysTime)
+{
+ BOOL ret;
+
+ __TRY
+ {
+ ret = TRUE;
+ if (len >= 3 && (*pbEncoded == '+' || *pbEncoded == '-'))
+ {
+ WORD hours, minutes = 0;
+ BYTE sign = *pbEncoded++;
+
+ len--;
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, hours);
+ if (ret && hours >= 24)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else if (len >= 2)
+ {
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, minutes);
+ if (ret && minutes >= 60)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ }
+ if (ret)
+ {
+ if (sign == '+')
+ {
+ sysTime->wHour += hours;
+ sysTime->wMinute += minutes;
+ }
+ else
+ {
+ if (hours > sysTime->wHour)
+ {
+ sysTime->wDay--;
+ sysTime->wHour = 24 - (hours - sysTime->wHour);
+ }
+ else
+ sysTime->wHour -= hours;
+ if (minutes > sysTime->wMinute)
+ {
+ sysTime->wHour--;
+ sysTime->wMinute = 60 - (minutes - sysTime->wMinute);
+ }
+ else
+ sysTime->wMinute -= minutes;
+ }
+ }
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+#define MIN_ENCODED_TIME_LENGTH 10
+
+static BOOL WINAPI CRYPT_AsnDecodeUtcTime(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ if (!pvStructInfo)
+ {
+ *pcbStructInfo = sizeof(FILETIME);
+ return TRUE;
+ }
+ __TRY
+ {
+ ret = TRUE;
+ if (pbEncoded[0] == ASN_UTCTIME)
+ {
+ if (cbEncoded <= 1)
+ {
+ SetLastError(CRYPT_E_ASN1_EOD);
+ ret = FALSE;
+ }
+ else if (pbEncoded[1] > 0x7f)
+ {
+ /* long-form date strings really can't be valid */
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else
+ {
+ SYSTEMTIME sysTime = { 0 };
+ BYTE len = pbEncoded[1];
+
+ if (len < MIN_ENCODED_TIME_LENGTH)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else
+ {
+ pbEncoded += 2;
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wYear);
+ if (sysTime.wYear >= 50)
+ sysTime.wYear += 1900;
+ else
+ sysTime.wYear += 2000;
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMonth);
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wDay);
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wHour);
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMinute);
+ if (ret && len > 0)
+ {
+ if (len >= 2 && isdigit(*pbEncoded) &&
+ isdigit(*(pbEncoded + 1)))
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
+ sysTime.wSecond);
+ else if (isdigit(*pbEncoded))
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 1,
+ sysTime.wSecond);
+ if (ret)
+ ret = CRYPT_AsnDecodeTimeZone(pbEncoded, len,
+ &sysTime);
+ }
+ if (ret && (ret = CRYPT_DecodeEnsureSpace(dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo,
+ sizeof(FILETIME))))
+ {
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ ret = SystemTimeToFileTime(&sysTime,
+ (FILETIME *)pvStructInfo);
+ }
+ }
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeGeneralizedTime(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ if (!pvStructInfo)
+ {
+ *pcbStructInfo = sizeof(FILETIME);
+ return TRUE;
+ }
+ __TRY
+ {
+ ret = TRUE;
+ if (pbEncoded[0] == ASN_GENERALTIME)
+ {
+ if (cbEncoded <= 1)
+ {
+ SetLastError(CRYPT_E_ASN1_EOD);
+ ret = FALSE;
+ }
+ else if (pbEncoded[1] > 0x7f)
+ {
+ /* long-form date strings really can't be valid */
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else
+ {
+ BYTE len = pbEncoded[1];
+
+ if (len < MIN_ENCODED_TIME_LENGTH)
+ {
+ SetLastError(CRYPT_E_ASN1_CORRUPT);
+ ret = FALSE;
+ }
+ else
+ {
+ SYSTEMTIME sysTime = { 0 };
+
+ pbEncoded += 2;
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 4, sysTime.wYear);
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMonth);
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wDay);
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wHour);
+ if (ret && len > 0)
+ {
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
+ sysTime.wMinute);
+ if (ret && len > 0)
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
+ sysTime.wSecond);
+ if (ret && len > 0 && (*pbEncoded == '.' ||
+ *pbEncoded == ','))
+ {
+ BYTE digits;
+
+ pbEncoded++;
+ len--;
+ /* workaround macro weirdness */
+ digits = min(len, 3);
+ CRYPT_TIME_GET_DIGITS(pbEncoded, len, digits,
+ sysTime.wMilliseconds);
+ }
+ if (ret)
+ ret = CRYPT_AsnDecodeTimeZone(pbEncoded, len,
+ &sysTime);
+ }
+ if (ret && (ret = CRYPT_DecodeEnsureSpace(dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo,
+ sizeof(FILETIME))))
+ {
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ ret = SystemTimeToFileTime(&sysTime,
+ (FILETIME *)pvStructInfo);
+ }
+ }
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeChoiceOfTime(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ __TRY
+ {
+ if (pbEncoded[0] == ASN_UTCTIME)
+ ret = CRYPT_AsnDecodeUtcTime(dwCertEncodingType, lpszStructType,
+ pbEncoded, cbEncoded, dwFlags, pDecodePara, pvStructInfo,
+ pcbStructInfo);
+ else if (pbEncoded[0] == ASN_GENERALTIME)
+ ret = CRYPT_AsnDecodeGeneralizedTime(dwCertEncodingType,
+ lpszStructType, pbEncoded, cbEncoded, dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo);
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ ret = FALSE;
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeSequenceOfAny(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret = TRUE;
+
+ __TRY
+ {
+ if (pbEncoded[0] == ASN_SEQUENCEOF)
+ {
+ DWORD bytesNeeded, dataLen, remainingLen, cValue;
+
+ if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
+ {
+ BYTE lenBytes;
+ const BYTE *ptr;
+
+ lenBytes = GET_LEN_BYTES(pbEncoded[1]);
+ bytesNeeded = sizeof(CRYPT_SEQUENCE_OF_ANY);
+ cValue = 0;
+ ptr = pbEncoded + 1 + lenBytes;
+ remainingLen = dataLen;
+ while (ret && remainingLen)
+ {
+ DWORD nextLen;
+
+ ret = CRYPT_GetLen(ptr, remainingLen, &nextLen);
+ if (ret)
+ {
+ DWORD nextLenBytes = GET_LEN_BYTES(ptr[1]);
+
+ remainingLen -= 1 + nextLenBytes + nextLen;
+ ptr += 1 + nextLenBytes + nextLen;
+ bytesNeeded += sizeof(CRYPT_DER_BLOB);
+ if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
+ bytesNeeded += 1 + nextLenBytes + nextLen;
+ cValue++;
+ }
+ }
+ if (ret)
+ {
+ CRYPT_SEQUENCE_OF_ANY *seq;
+ BYTE *nextPtr;
+ DWORD i;
+
+ if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
+ pvStructInfo, pcbStructInfo, bytesNeeded)))
+ {
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
+ pvStructInfo = *(BYTE **)pvStructInfo;
+ seq = (CRYPT_SEQUENCE_OF_ANY *)pvStructInfo;
+ seq->cValue = cValue;
+ seq->rgValue = (CRYPT_DER_BLOB *)((BYTE *)seq +
+ sizeof(*seq));
+ nextPtr = (BYTE *)seq->rgValue +
+ cValue * sizeof(CRYPT_DER_BLOB);
+ ptr = pbEncoded + 1 + lenBytes;
+ remainingLen = dataLen;
+ i = 0;
+ while (ret && remainingLen)
+ {
+ DWORD nextLen;
+
+ ret = CRYPT_GetLen(ptr, remainingLen, &nextLen);
+ if (ret)
+ {
+ DWORD nextLenBytes = GET_LEN_BYTES(ptr[1]);
+
+ seq->rgValue[i].cbData = 1 + nextLenBytes +
+ nextLen;
+ if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
+ seq->rgValue[i].pbData = (BYTE *)ptr;
+ else
+ {
+ seq->rgValue[i].pbData = nextPtr;
+ memcpy(nextPtr, ptr, 1 + nextLenBytes +
+ nextLen);
+ nextPtr += 1 + nextLenBytes + nextLen;
+ }
+ remainingLen -= 1 + nextLenBytes + nextLen;
+ ptr += 1 + nextLenBytes + nextLen;
+ i++;
+ }
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ SetLastError(CRYPT_E_ASN1_BADTAG);
+ return FALSE;
+ }
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeDistPoint(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ struct AsnDecodeSequenceItem items[] = {
+ { ASN_CONTEXT | ASN_CONSTRUCTOR | 0, offsetof(CRL_DIST_POINT,
+ DistPointName), CRYPT_AsnDecodeAltNameInternal,
+ sizeof(CRL_DIST_POINT_NAME), TRUE, TRUE, offsetof(CRL_DIST_POINT,
+ DistPointName.u.FullName.rgAltEntry), 0 },
+ { ASN_CONTEXT | 1, offsetof(CRL_DIST_POINT, ReasonFlags),
+ CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
+ offsetof(CRL_DIST_POINT, ReasonFlags.pbData), 0 },
+ { ASN_CONTEXT | ASN_CONSTRUCTOR | 2, offsetof(CRL_DIST_POINT, CRLIssuer),
+ CRYPT_AsnDecodeAltNameInternal, sizeof(CERT_ALT_NAME_INFO), TRUE, TRUE,
+ offsetof(CRL_DIST_POINT, CRLIssuer.rgAltEntry), 0 },
+ };
+ BOOL ret;
+
+ ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
+ sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded,
+ dwFlags, pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeCRLDistPoints(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ __TRY
+ {
+ struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
+ CRYPT_AsnDecodeDistPoint, sizeof(CRL_DIST_POINT), TRUE,
+ offsetof(CRL_DIST_POINT, DistPointName.u.FullName.rgAltEntry) };
+
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+static BOOL WINAPI CRYPT_AsnDecodeEnhancedKeyUsage(DWORD dwCertEncodingType,
+ LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ BOOL ret;
+
+ TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, *pcbStructInfo);
+
+ __TRY
+ {
+ struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
+ CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), TRUE, 0 };
+
+ ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
+ pDecodePara, pvStructInfo, pcbStructInfo, NULL);
+ }
+ __EXCEPT_PAGE_FAULT
+ {
+ SetLastError(STATUS_ACCESS_VIOLATION);
+ ret = FALSE;
+ }
+ __ENDTRY
+ return ret;
+}
+
+BOOL WINAPI CryptDecodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
+ const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
+ PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
+{
+ static HCRYPTOIDFUNCSET set = NULL;
+ BOOL ret = FALSE;
+ CryptDecodeObjectExFunc decodeFunc = NULL;
+ HCRYPTOIDFUNCADDR hFunc = NULL;
+
+ TRACE("(0x%08lx, %s, %p, %ld, 0x%08lx, %p, %p, %p)\n",
+ dwCertEncodingType, debugstr_a(lpszStructType), pbEncoded,
+ cbEncoded, dwFlags, pDecodePara, pvStructInfo, pcbStructInfo);
+
+ if (!pvStructInfo && !pcbStructInfo)
+ {
+ SetLastError(ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
+ if ((dwCertEncodingType & CERT_ENCODING_TYPE_MASK) != X509_ASN_ENCODING
+ && (dwCertEncodingType & CMSG_ENCODING_TYPE_MASK) != PKCS_7_ASN_ENCODING)
+ {
+ SetLastError(ERROR_FILE_NOT_FOUND);
+ return FALSE;
+ }
+ if (!cbEncoded)
+ {
+ SetLastError(CRYPT_E_ASN1_EOD);
+ return FALSE;
+ }
+ if (cbEncoded > MAX_ENCODED_LEN)
+ {
+ SetLastError(CRYPT_E_ASN1_LARGE);
+ return FALSE;
+ }
+
+ SetLastError(NOERROR);
+ if (dwFlags & CRYPT_DECODE_ALLOC_FLAG && pvStructInfo)
+ *(BYTE **)pvStructInfo = NULL;
+ if (!HIWORD(lpszStructType))
+ {
+ switch (LOWORD(lpszStructType))
+ {
+ case (WORD)X509_CERT:
+ decodeFunc = CRYPT_AsnDecodeCert;
+ break;
+ case (WORD)X509_CERT_TO_BE_SIGNED:
+ decodeFunc = CRYPT_AsnDecodeCertInfo;
+ break;
+ case (WORD)X509_CERT_CRL_TO_BE_SIGNED:
+ decodeFunc = CRYPT_AsnDecodeCRLInfo;
+ break;
+ case (WORD)X509_EXTENSIONS:
+ decodeFunc = CRYPT_AsnDecodeExtensions;
+ break;
+ case (WORD)X509_NAME:
+ decodeFunc = CRYPT_AsnDecodeName;
+ break;
+ case (WORD)X509_PUBLIC_KEY_INFO:
+ decodeFunc = CRYPT_AsnDecodePubKeyInfo;
+ break;
+ case (WORD)X509_ALTERNATE_NAME:
+ decodeFunc = CRYPT_AsnDecodeAltName;
+ break;
+ case (WORD)X509_BASIC_CONSTRAINTS:
+ decodeFunc = CRYPT_AsnDecodeBasicConstraints;
+ break;
+ case (WORD)X509_BASIC_CONSTRAINTS2:
+ decodeFunc = CRYPT_AsnDecodeBasicConstraints2;
+ break;
+ case (WORD)RSA_CSP_PUBLICKEYBLOB:
+ decodeFunc = CRYPT_AsnDecodeRsaPubKey;
+ break;
+ case (WORD)X509_OCTET_STRING:
+ decodeFunc = CRYPT_AsnDecodeOctets;
+ break;
+ case (WORD)X509_BITS:
+ case (WORD)X509_KEY_USAGE:
+ decodeFunc = CRYPT_AsnDecodeBits;
+ break;
+ case (WORD)X509_INTEGER:
+ decodeFunc = CRYPT_AsnDecodeInt;
+ break;
+ case (WORD)X509_MULTI_BYTE_INTEGER:
+ decodeFunc = CRYPT_AsnDecodeInteger;
+ break;
+ case (WORD)X509_MULTI_BYTE_UINT:
+ decodeFunc = CRYPT_AsnDecodeUnsignedInteger;
+ break;
+ case (WORD)X509_ENUMERATED:
+ decodeFunc = CRYPT_AsnDecodeEnumerated;
+ break;
+ case (WORD)X509_CHOICE_OF_TIME:
+ decodeFunc = CRYPT_AsnDecodeChoiceOfTime;
+ break;
+ case (WORD)X509_SEQUENCE_OF_ANY:
+ decodeFunc = CRYPT_AsnDecodeSequenceOfAny;
+ break;
+ case (WORD)PKCS_UTC_TIME:
+ decodeFunc = CRYPT_AsnDecodeUtcTime;
+ break;
+ case (WORD)X509_CRL_DIST_POINTS:
+ decodeFunc = CRYPT_AsnDecodeCRLDistPoints;
+ break;
+ case (WORD)X509_ENHANCED_KEY_USAGE:
+ decodeFunc = CRYPT_AsnDecodeEnhancedKeyUsage;
+ break;
+ default:
+ FIXME("%d: unimplemented\n", LOWORD(lpszStructType));
+ }
+ }
+ else if (!strcmp(lpszStructType, szOID_CERT_EXTENSIONS))
+ decodeFunc = CRYPT_AsnDecodeExtensions;
+ else if (!strcmp(lpszStructType, szOID_RSA_signingTime))
+ decodeFunc = CRYPT_AsnDecodeUtcTime;
+ else if (!strcmp(lpszStructType, szOID_CRL_REASON_CODE))
+ decodeFunc = CRYPT_AsnDecodeEnumerated;
+ else if (!strcmp(lpszStructType, szOID_KEY_USAGE))
+ decodeFunc = CRYPT_AsnDecodeBits;
+ else if (!strcmp(lpszStructType, szOID_SUBJECT_KEY_IDENTIFIER))
+ decodeFunc = CRYPT_AsnDecodeOctets;
+ else if (!strcmp(lpszStructType, szOID_BASIC_CONSTRAINTS))
+ decodeFunc = CRYPT_AsnDecodeBasicConstraints;
+ else if (!strcmp(lpszStructType, szOID_BASIC_CONSTRAINTS2))
+ decodeFunc = CRYPT_AsnDecodeBasicConstraints2;
+ else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME))
+ decodeFunc = CRYPT_AsnDecodeAltName;
+ else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME2))
+ decodeFunc = CRYPT_AsnDecodeAltName;
+ else if (!strcmp(lpszStructType, szOID_NEXT_UPDATE_LOCATION))
+ decodeFunc = CRYPT_AsnDecodeAltName;
+ else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME))
+ decodeFunc = CRYPT_AsnDecodeAltName;
+ else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME2))
+ decodeFunc = CRYPT_AsnDecodeAltName;
+ else if (!strcmp(lpszStructType, szOID_CRL_DIST_POINTS))
+ decodeFunc = CRYPT_AsnDecodeCRLDistPoints;
+ else if (!strcmp(lpszStructType, szOID_ENHANCED_KEY_USAGE))
+ decodeFunc = CRYPT_AsnDecodeEnhancedKeyUsage;
+ else
+ TRACE("OID %s not found or unimplemented, looking for DLL\n",
+ debugstr_a(lpszStructType));
+ if (!decodeFunc)
+ {
+ if (!set)
+ set = CryptInitOIDFunctionSet(CRYPT_OID_DECODE_OBJECT_EX_FUNC, 0);
+ CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
+ (void **)&decodeFunc, &hFunc);
+ }
+ if (decodeFunc)
+ ret = decodeFunc(dwCertEncodingType, lpszStructType, pbEncoded,
+ cbEncoded, dwFlags, pDecodePara, pvStructInfo, pcbStructInfo);
+ else
+ SetLastError(ERROR_FILE_NOT_FOUND);
+ if (hFunc)
+ CryptFreeOIDFunctionAddress(hFunc, 0);
+ return ret;
+}
diff --git a/dlls/crypt32/encode.c b/dlls/crypt32/encode.c
index 20d4118..5a7c3e4 100644
--- a/dlls/crypt32/encode.c
+++ b/dlls/crypt32/encode.c
@@ -15,8 +15,8 @@
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
- * This file implements ASN.1 DER encoding and decoding of a limited set of
- * types. It isn't a full ASN.1 implementation. Microsoft implements BER
+ * This file implements ASN.1 DER encoding of a limited set of types.
+ * It isn't a full ASN.1 implementation. Microsoft implements BER
* encoding of many of the basic types in msasn1.dll, but that interface is
* undocumented, so I implement them here.
*
@@ -31,9 +31,6 @@
* http://msdn.microsoft.com/library/en-us/seccrypto/security/constants_for_cryptencodeobject_and_cryptdecodeobject.asp
*/
-#include "config.h"
-#include "wine/port.h"
-
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
@@ -51,45 +48,17 @@
#include "wine/exception.h"
#include "crypt32_private.h"
-/* This is a bit arbitrary, but to set some limit: */
-#define MAX_ENCODED_LEN 0x02000000
-
-/* a few asn.1 tags we need */
-#define ASN_BOOL (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x01)
-#define ASN_BITSTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x03)
-#define ASN_ENUMERATED (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x0a)
-#define ASN_SETOF (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x11)
-#define ASN_NUMERICSTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x12)
-#define ASN_PRINTABLESTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x13)
-#define ASN_IA5STRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x16)
-#define ASN_UTCTIME (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x17)
-#define ASN_GENERALTIME (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x18)
-
-#define ASN_FLAGS_MASK 0xe0
-#define ASN_TYPE_MASK 0x1f
-
WINE_DEFAULT_DEBUG_CHANNEL(crypt);
-struct GenericArray
-{
- DWORD cItems;
- BYTE *rgItems;
-};
-
typedef BOOL (WINAPI *CryptEncodeObjectFunc)(DWORD, LPCSTR, const void *,
BYTE *, DWORD *);
typedef BOOL (WINAPI *CryptEncodeObjectExFunc)(DWORD, LPCSTR, const void *,
DWORD, PCRYPT_ENCODE_PARA, BYTE *, DWORD *);
-typedef BOOL (WINAPI *CryptDecodeObjectFunc)(DWORD, LPCSTR, const BYTE *,
- DWORD, DWORD, void *, DWORD *);
-typedef BOOL (WINAPI *CryptDecodeObjectExFunc)(DWORD, LPCSTR, const BYTE *,
- DWORD, DWORD, PCRYPT_DECODE_PARA, void *, DWORD *);
-/* Prototypes for built-in encoders/decoders. They follow the Ex style
- * prototypes. The dwCertEncodingType and lpszStructType are ignored by the
- * built-in functions, but the parameters are retained to simplify
- * CryptEncodeObjectEx/CryptDecodeObjectEx, since they must call functions in
- * external DLLs that follow these signatures.
+/* Prototypes for built-in encoders. They follow the Ex style prototypes.
+ * The dwCertEncodingType and lpszStructType are ignored by the built-in
+ * functions, but the parameters are retained to simplify CryptEncodeObjectEx,
+ * since it must call functions in external DLLs that follow these signatures.
*/
static BOOL WINAPI CRYPT_AsnEncodeOid(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
@@ -128,57 +97,6 @@
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnDecodeChoiceOfTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-static BOOL WINAPI CRYPT_AsnDecodePubKeyInfoInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Like CRYPT_AsnDecodeExtensions, except assumes rgExtension is set ahead of
- * time, doesn't do memory allocation, and doesn't do exception handling.
- * (This isn't intended to be the externally-called one.)
- */
-static BOOL WINAPI CRYPT_AsnDecodeExtensionsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Assumes algo->Parameters.pbData is set ahead of time. Internal func. */
-static BOOL WINAPI CRYPT_AsnDecodeAlgorithmId(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Internal function */
-static BOOL WINAPI CRYPT_AsnDecodeBool(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Assumes the CRYPT_DATA_BLOB's pbData member has been initialized */
-static BOOL WINAPI CRYPT_AsnDecodeOctetsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Like CRYPT_AsnDecodeBits, but assumes the CRYPT_INTEGER_BLOB's pbData
- * member has been initialized, doesn't do exception handling, and doesn't do
- * memory allocation.
- */
-static BOOL WINAPI CRYPT_AsnDecodeBitsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-static BOOL WINAPI CRYPT_AsnDecodeBits(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-static BOOL WINAPI CRYPT_AsnDecodeInt(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Like CRYPT_AsnDecodeInteger, but assumes the CRYPT_INTEGER_BLOB's pbData
- * member has been initialized, doesn't do exception handling, and doesn't do
- * memory allocation.
- */
-static BOOL WINAPI CRYPT_AsnDecodeIntegerInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Like CRYPT_AsnDecodeInteger, but unsigned. */
-static BOOL WINAPI CRYPT_AsnDecodeUnsignedIntegerInternal(
- DWORD dwCertEncodingType, LPCSTR lpszStructType, const BYTE *pbEncoded,
- DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
- void *pvStructInfo, DWORD *pcbStructInfo);
-
BOOL WINAPI CryptEncodeObject(DWORD dwCertEncodingType, LPCSTR lpszStructType,
const void *pvStructInfo, BYTE *pbEncoded, DWORD *pcbEncoded)
{
@@ -2450,2957 +2368,6 @@
return ret;
}
-BOOL WINAPI CryptDecodeObject(DWORD dwCertEncodingType, LPCSTR lpszStructType,
- const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo,
- DWORD *pcbStructInfo)
-{
- static HCRYPTOIDFUNCSET set = NULL;
- BOOL ret = FALSE;
- CryptDecodeObjectFunc pCryptDecodeObject;
- HCRYPTOIDFUNCADDR hFunc;
-
- TRACE("(0x%08lx, %s, %p, %ld, 0x%08lx, %p, %p)\n", dwCertEncodingType,
- debugstr_a(lpszStructType), pbEncoded, cbEncoded, dwFlags,
- pvStructInfo, pcbStructInfo);
-
- if (!pvStructInfo && !pcbStructInfo)
- {
- SetLastError(ERROR_INVALID_PARAMETER);
- return FALSE;
- }
-
- /* Try registered DLL first.. */
- if (!set)
- set = CryptInitOIDFunctionSet(CRYPT_OID_DECODE_OBJECT_FUNC, 0);
- CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
- (void **)&pCryptDecodeObject, &hFunc);
- if (pCryptDecodeObject)
- {
- ret = pCryptDecodeObject(dwCertEncodingType, lpszStructType,
- pbEncoded, cbEncoded, dwFlags, pvStructInfo, pcbStructInfo);
- CryptFreeOIDFunctionAddress(hFunc, 0);
- }
- else
- {
- /* If not, use CryptDecodeObjectEx */
- ret = CryptDecodeObjectEx(dwCertEncodingType, lpszStructType, pbEncoded,
- cbEncoded, dwFlags, NULL, pvStructInfo, pcbStructInfo);
- }
- return ret;
-}
-
-/* Gets the number of length bytes from the given (leading) length byte */
-#define GET_LEN_BYTES(b) ((b) <= 0x7f ? 1 : 1 + ((b) & 0x7f))
-
-/* Helper function to get the encoded length of the data starting at pbEncoded,
- * where pbEncoded[0] is the tag. If the data are too short to contain a
- * length or if the length is too large for cbEncoded, sets an appropriate
- * error code and returns FALSE.
- */
-static BOOL WINAPI CRYPT_GetLen(const BYTE *pbEncoded, DWORD cbEncoded,
- DWORD *len)
-{
- BOOL ret;
-
- if (cbEncoded <= 1)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else if (pbEncoded[1] <= 0x7f)
- {
- if (pbEncoded[1] + 1 > cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else
- {
- *len = pbEncoded[1];
- ret = TRUE;
- }
- }
- else
- {
- BYTE lenLen = GET_LEN_BYTES(pbEncoded[1]);
-
- if (lenLen > sizeof(DWORD) + 1)
- {
- SetLastError(CRYPT_E_ASN1_LARGE);
- ret = FALSE;
- }
- else if (lenLen + 2 > cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- DWORD out = 0;
-
- pbEncoded += 2;
- while (--lenLen)
- {
- out <<= 8;
- out |= *pbEncoded++;
- }
- if (out + lenLen + 1 > cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else
- {
- *len = out;
- ret = TRUE;
- }
- }
- }
- return ret;
-}
-
-/* Helper function to check *pcbStructInfo, set it to the required size, and
- * optionally to allocate memory. Assumes pvStructInfo is not NULL.
- * If CRYPT_DECODE_ALLOC_FLAG is set in dwFlags, *pvStructInfo will be set to a
- * pointer to the newly allocated memory.
- */
-static BOOL CRYPT_DecodeEnsureSpace(DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo,
- DWORD bytesNeeded)
-{
- BOOL ret = TRUE;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- {
- if (pDecodePara && pDecodePara->pfnAlloc)
- *(BYTE **)pvStructInfo = pDecodePara->pfnAlloc(bytesNeeded);
- else
- *(BYTE **)pvStructInfo = LocalAlloc(0, bytesNeeded);
- if (!*(BYTE **)pvStructInfo)
- ret = FALSE;
- else
- *pcbStructInfo = bytesNeeded;
- }
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- return ret;
-}
-
-/* tag:
- * The expected tag of the item. If tag is 0, decodeFunc is called
- * regardless of the tag value seen.
- * offset:
- * A sequence is decoded into a struct. The offset member is the
- * offset of this item within that struct.
- * decodeFunc:
- * The decoder function to use. If this is NULL, then the member isn't
- * decoded, but minSize space is reserved for it.
- * minSize:
- * The minimum amount of space occupied after decoding. You must set this.
- * optional:
- * If true, and the tag doesn't match the expected tag for this item,
- * or the decodeFunc fails with CRYPT_E_ASN1_BADTAG, then minSize space is
- * filled with 0 for this member.
- * hasPointer, pointerOffset, minSize:
- * If the item has dynamic data, set hasPointer to TRUE, pointerOffset to
- * the offset within the (outer) struct of the data pointer (or to the
- * first data pointer, if more than one exist).
- * size:
- * Used by CRYPT_AsnDecodeSequence, not for your use.
- */
-struct AsnDecodeSequenceItem
-{
- BYTE tag;
- DWORD offset;
- CryptDecodeObjectExFunc decodeFunc;
- DWORD minSize;
- BOOL optional;
- BOOL hasPointer;
- DWORD pointerOffset;
- DWORD size;
-};
-
-static BOOL CRYPT_AsnDecodeSequenceItems(DWORD dwCertEncodingType,
- struct AsnDecodeSequenceItem items[], DWORD cItem, const BYTE *pbEncoded,
- DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, BYTE *nextData)
-{
- BOOL ret;
- DWORD i;
- const BYTE *ptr;
-
- ptr = pbEncoded + 1 + GET_LEN_BYTES(pbEncoded[1]);
- for (i = 0, ret = TRUE; ret && i < cItem; i++)
- {
- if (cbEncoded - (ptr - pbEncoded) != 0)
- {
- DWORD nextItemLen;
-
- if ((ret = CRYPT_GetLen(ptr, cbEncoded - (ptr - pbEncoded),
- &nextItemLen)))
- {
- BYTE nextItemLenBytes = GET_LEN_BYTES(ptr[1]);
-
- if (ptr[0] == items[i].tag || !items[i].tag)
- {
- if (nextData && pvStructInfo && items[i].hasPointer)
- {
- TRACE("Setting next pointer to %p\n",
- nextData);
- *(BYTE **)((BYTE *)pvStructInfo +
- items[i].pointerOffset) = nextData;
- }
- if (items[i].decodeFunc)
- {
- if (pvStructInfo)
- TRACE("decoding item %ld\n", i);
- else
- TRACE("sizing item %ld\n", i);
- ret = items[i].decodeFunc(dwCertEncodingType,
- NULL, ptr, 1 + nextItemLenBytes + nextItemLen,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL,
- pvStructInfo ? (BYTE *)pvStructInfo + items[i].offset
- : NULL, &items[i].size);
- if (ret)
- {
- if (nextData && items[i].hasPointer &&
- items[i].size > items[i].minSize)
- {
- nextData += items[i].size - items[i].minSize;
- /* align nextData to DWORD boundaries */
- if (items[i].size % sizeof(DWORD))
- nextData += sizeof(DWORD) - items[i].size %
- sizeof(DWORD);
- }
- /* Account for alignment padding */
- if (items[i].size % sizeof(DWORD))
- items[i].size += sizeof(DWORD) -
- items[i].size % sizeof(DWORD);
- ptr += 1 + nextItemLenBytes + nextItemLen;
- }
- else if (items[i].optional &&
- GetLastError() == CRYPT_E_ASN1_BADTAG)
- {
- TRACE("skipping optional item %ld\n", i);
- items[i].size = items[i].minSize;
- SetLastError(NOERROR);
- ret = TRUE;
- }
- else
- TRACE("item %ld failed: %08lx\n", i,
- GetLastError());
- }
- else
- items[i].size = items[i].minSize;
- }
- else if (items[i].optional)
- {
- TRACE("skipping optional item %ld\n", i);
- items[i].size = items[i].minSize;
- }
- else
- {
- TRACE("tag %02x doesn't match expected %02x\n",
- ptr[0], items[i].tag);
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- }
- else if (items[i].optional)
- {
- TRACE("missing optional item %ld, skipping\n", i);
- items[i].size = items[i].minSize;
- }
- else
- {
- TRACE("not enough bytes for item %ld, failing\n", i);
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- }
- if (cbEncoded - (ptr - pbEncoded) != 0)
- {
- TRACE("%ld remaining bytes, failing\n", cbEncoded -
- (ptr - pbEncoded));
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- return ret;
-}
-
-/* This decodes an arbitrary sequence into a contiguous block of memory
- * (basically, a struct.) Each element being decoded is described by a struct
- * AsnDecodeSequenceItem, see above.
- * startingPointer is an optional pointer to the first place where dynamic
- * data will be stored. If you know the starting offset, you may pass it
- * here. Otherwise, pass NULL, and one will be inferred from the items.
- * Each item decoder is never called with CRYPT_DECODE_ALLOC_FLAG set.
- * If any undecoded data are left over, fails with CRYPT_E_ASN1_CORRUPT.
- */
-static BOOL CRYPT_AsnDecodeSequence(DWORD dwCertEncodingType,
- struct AsnDecodeSequenceItem items[], DWORD cItem, const BYTE *pbEncoded,
- DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
- void *pvStructInfo, DWORD *pcbStructInfo, void *startingPointer)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %p, %ld, %08lx, %p, %p, %ld, %p\n", items, cItem, pbEncoded,
- cbEncoded, dwFlags, pDecodePara, pvStructInfo, *pcbStructInfo,
- startingPointer);
-
- if (pbEncoded[0] == ASN_SEQUENCE)
- {
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- DWORD i;
-
- ret = CRYPT_AsnDecodeSequenceItems(dwFlags, items, cItem, pbEncoded,
- cbEncoded, dwFlags, NULL, NULL);
- if (ret)
- {
- DWORD bytesNeeded = 0, structSize = 0;
-
- for (i = 0; i < cItem; i++)
- {
- bytesNeeded += items[i].size;
- structSize += items[i].minSize;
- }
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- BYTE *nextData;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- if (startingPointer)
- nextData = (BYTE *)startingPointer;
- else
- nextData = (BYTE *)pvStructInfo + structSize;
- memset(pvStructInfo, 0, structSize);
- ret = CRYPT_AsnDecodeSequenceItems(dwFlags, items, cItem,
- pbEncoded, cbEncoded, dwFlags, pvStructInfo, nextData);
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-/* tag:
- * The expected tag of the entire encoded array (usually a variant
- * of ASN_SETOF or ASN_SEQUENCEOF.)
- * decodeFunc:
- * used to decode each item in the array
- * itemSize:
- * is the minimum size of each decoded item
- * hasPointer:
- * indicates whether each item has a dynamic pointer
- * pointerOffset:
- * indicates the offset within itemSize at which the pointer exists
- */
-struct AsnArrayDescriptor
-{
- BYTE tag;
- CryptDecodeObjectExFunc decodeFunc;
- DWORD itemSize;
- BOOL hasPointer;
- DWORD pointerOffset;
-};
-
-struct AsnArrayItemSize
-{
- DWORD encodedLen;
- DWORD size;
-};
-
-/* Decodes an array of like types into a struct GenericArray.
- * The layout and decoding of the array are described by a struct
- * AsnArrayDescriptor.
- */
-static BOOL CRYPT_AsnDecodeArray(const struct AsnArrayDescriptor *arrayDesc,
- const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo,
- void *startingPointer)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %p, %ld, %08lx, %p, %p, %ld, %p\n", arrayDesc, pbEncoded,
- cbEncoded, dwFlags, pDecodePara, pvStructInfo, *pcbStructInfo,
- startingPointer);
-
- if (pbEncoded[0] == arrayDesc->tag)
- {
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- DWORD bytesNeeded, cItems = 0;
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- /* There can be arbitrarily many items, but there is often only one.
- */
- struct AsnArrayItemSize itemSize = { 0 }, *itemSizes = &itemSize;
-
- bytesNeeded = sizeof(struct GenericArray);
- if (dataLen)
- {
- const BYTE *ptr;
-
- for (ptr = pbEncoded + 1 + lenBytes; ret &&
- ptr - pbEncoded - 1 - lenBytes < dataLen; )
- {
- DWORD itemLenBytes, itemDataLen, size;
-
- itemLenBytes = GET_LEN_BYTES(ptr[1]);
- /* Each item decoded may not tolerate extraneous bytes, so
- * get the length of the next element and pass it directly.
- */
- ret = CRYPT_GetLen(ptr, cbEncoded - (ptr - pbEncoded),
- &itemDataLen);
- if (ret)
- ret = arrayDesc->decodeFunc(X509_ASN_ENCODING, 0, ptr,
- 1 + itemLenBytes + itemDataLen,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL,
- &size);
- if (ret)
- {
- DWORD nextLen;
-
- cItems++;
- if (itemSizes != &itemSize)
- itemSizes = CryptMemRealloc(itemSizes,
- cItems * sizeof(struct AsnArrayItemSize));
- else
- {
- itemSizes =
- CryptMemAlloc(
- cItems * sizeof(struct AsnArrayItemSize));
- memcpy(itemSizes, &itemSize, sizeof(itemSize));
- }
- if (itemSizes)
- {
- itemSizes[cItems - 1].encodedLen = 1 + itemLenBytes
- + itemDataLen;
- itemSizes[cItems - 1].size = size;
- bytesNeeded += size;
- ret = CRYPT_GetLen(ptr,
- cbEncoded - (ptr - pbEncoded), &nextLen);
- if (ret)
- ptr += nextLen + 1 + GET_LEN_BYTES(ptr[1]);
- }
- else
- ret = FALSE;
- }
- }
- }
- if (ret)
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- DWORD i;
- BYTE *nextData;
- const BYTE *ptr;
- struct GenericArray *array;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- array = (struct GenericArray *)pvStructInfo;
- array->cItems = cItems;
- if (startingPointer)
- array->rgItems = startingPointer;
- else
- array->rgItems = (BYTE *)array +
- sizeof(struct GenericArray);
- nextData = (BYTE *)array->rgItems +
- array->cItems * arrayDesc->itemSize;
- for (i = 0, ptr = pbEncoded + 1 + lenBytes; ret &&
- i < cItems && ptr - pbEncoded - 1 - lenBytes <
- dataLen; i++)
- {
- if (arrayDesc->hasPointer)
- *(BYTE **)(array->rgItems + i * arrayDesc->itemSize
- + arrayDesc->pointerOffset) = nextData;
- ret = arrayDesc->decodeFunc(X509_ASN_ENCODING, 0, ptr,
- itemSizes[i].encodedLen,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL,
- array->rgItems + i * arrayDesc->itemSize,
- &itemSizes[i].size);
- if (ret)
- {
- DWORD nextLen;
-
- nextData += itemSizes[i].size - arrayDesc->itemSize;
- ret = CRYPT_GetLen(ptr,
- cbEncoded - (ptr - pbEncoded), &nextLen);
- if (ret)
- ptr += nextLen + 1 + GET_LEN_BYTES(ptr[1]);
- }
- }
- }
- }
- if (itemSizes != &itemSize)
- CryptMemFree(itemSizes);
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- return ret;
-}
-
-/* Decodes a DER-encoded BLOB into a CRYPT_DER_BLOB struct pointed to by
- * pvStructInfo. The BLOB must be non-empty, otherwise the last error is set
- * to CRYPT_E_ASN1_CORRUPT.
- * Warning: assumes the CRYPT_DER_BLOB pointed to by pvStructInfo has pbData
- * set!
- */
-static BOOL WINAPI CRYPT_AsnDecodeDerBlob(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- DWORD bytesNeeded = sizeof(CRYPT_DER_BLOB);
-
- if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
- bytesNeeded += 1 + lenBytes + dataLen;
-
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_DER_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_DER_BLOB *)pvStructInfo;
- blob->cbData = 1 + lenBytes + dataLen;
- if (blob->cbData)
- {
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- blob->pbData = (BYTE *)pbEncoded;
- else
- {
- assert(blob->pbData);
- memcpy(blob->pbData, pbEncoded, blob->cbData);
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- }
- }
- return ret;
-}
-
-/* Like CRYPT_AsnDecodeBitsInternal, but swaps the bytes */
-static BOOL WINAPI CRYPT_AsnDecodeBitsSwapBytes(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("(%p, %ld, 0x%08lx, %p, %p, %ld)\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- /* Can't use the CRYPT_DECODE_NOCOPY_FLAG, because we modify the bytes in-
- * place.
- */
- ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType, lpszStructType,
- pbEncoded, cbEncoded, dwFlags & ~CRYPT_DECODE_NOCOPY_FLAG, pDecodePara,
- pvStructInfo, pcbStructInfo);
- if (ret && pvStructInfo)
- {
- CRYPT_BIT_BLOB *blob = (CRYPT_BIT_BLOB *)pvStructInfo;
-
- if (blob->cbData)
- {
- DWORD i;
- BYTE temp;
-
- for (i = 0; i < blob->cbData / 2; i++)
- {
- temp = blob->pbData[i];
- blob->pbData[i] = blob->pbData[blob->cbData - i - 1];
- blob->pbData[blob->cbData - i - 1] = temp;
- }
- }
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCert(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { 0, offsetof(CERT_SIGNED_CONTENT_INFO, ToBeSigned),
- CRYPT_AsnDecodeDerBlob, sizeof(CRYPT_DER_BLOB), FALSE, TRUE,
- offsetof(CERT_SIGNED_CONTENT_INFO, ToBeSigned.pbData), 0 },
- { ASN_SEQUENCEOF, offsetof(CERT_SIGNED_CONTENT_INFO,
- SignatureAlgorithm), CRYPT_AsnDecodeAlgorithmId,
- sizeof(CRYPT_ALGORITHM_IDENTIFIER), FALSE, TRUE,
- offsetof(CERT_SIGNED_CONTENT_INFO, SignatureAlgorithm.pszObjId), 0 },
- { ASN_BITSTRING, offsetof(CERT_SIGNED_CONTENT_INFO, Signature),
- CRYPT_AsnDecodeBitsSwapBytes, sizeof(CRYPT_BIT_BLOB), FALSE, TRUE,
- offsetof(CERT_SIGNED_CONTENT_INFO, Signature.pbData), 0 },
- };
-
- if (dwFlags & CRYPT_DECODE_NO_SIGNATURE_BYTE_REVERSAL_FLAG)
- items[2].decodeFunc = CRYPT_AsnDecodeBitsInternal;
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-/* Internal function */
-static BOOL WINAPI CRYPT_AsnDecodeCertVersion(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- ret = CRYPT_AsnDecodeInt(dwCertEncodingType, X509_INTEGER,
- pbEncoded + 1 + lenBytes, dataLen, dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo);
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeValidity(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- struct AsnDecodeSequenceItem items[] = {
- { 0, offsetof(CERT_PRIVATE_KEY_VALIDITY, NotBefore),
- CRYPT_AsnDecodeChoiceOfTime, sizeof(FILETIME), FALSE, FALSE, 0 },
- { 0, offsetof(CERT_PRIVATE_KEY_VALIDITY, NotAfter),
- CRYPT_AsnDecodeChoiceOfTime, sizeof(FILETIME), FALSE, FALSE, 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- return ret;
-}
-
-/* Internal function */
-static BOOL WINAPI CRYPT_AsnDecodeCertExtensions(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
- X509_EXTENSIONS, pbEncoded + 1 + lenBytes, dataLen, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo);
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCertInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_CONTEXT | ASN_CONSTRUCTOR, offsetof(CERT_INFO, dwVersion),
- CRYPT_AsnDecodeCertVersion, sizeof(DWORD), TRUE, FALSE, 0, 0 },
- { ASN_INTEGER, offsetof(CERT_INFO, SerialNumber),
- CRYPT_AsnDecodeIntegerInternal, sizeof(CRYPT_INTEGER_BLOB), FALSE,
- TRUE, offsetof(CERT_INFO, SerialNumber.pbData), 0 },
- { ASN_SEQUENCEOF, offsetof(CERT_INFO, SignatureAlgorithm),
- CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
- FALSE, TRUE, offsetof(CERT_INFO, SignatureAlgorithm.pszObjId), 0 },
- { 0, offsetof(CERT_INFO, Issuer), CRYPT_AsnDecodeDerBlob,
- sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CERT_INFO,
- Issuer.pbData) },
- { ASN_SEQUENCEOF, offsetof(CERT_INFO, NotBefore),
- CRYPT_AsnDecodeValidity, sizeof(CERT_PRIVATE_KEY_VALIDITY), FALSE,
- FALSE, 0 },
- { 0, offsetof(CERT_INFO, Subject), CRYPT_AsnDecodeDerBlob,
- sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CERT_INFO,
- Subject.pbData) },
- { ASN_SEQUENCEOF, offsetof(CERT_INFO, SubjectPublicKeyInfo),
- CRYPT_AsnDecodePubKeyInfoInternal, sizeof(CERT_PUBLIC_KEY_INFO),
- FALSE, TRUE, offsetof(CERT_INFO,
- SubjectPublicKeyInfo.Algorithm.Parameters.pbData), 0 },
- { ASN_BITSTRING, offsetof(CERT_INFO, IssuerUniqueId),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
- offsetof(CERT_INFO, IssuerUniqueId.pbData), 0 },
- { ASN_BITSTRING, offsetof(CERT_INFO, SubjectUniqueId),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
- offsetof(CERT_INFO, SubjectUniqueId.pbData), 0 },
- { ASN_CONTEXT | ASN_CONSTRUCTOR | 3, offsetof(CERT_INFO, cExtension),
- CRYPT_AsnDecodeCertExtensions, sizeof(CERT_EXTENSIONS), TRUE, TRUE,
- offsetof(CERT_INFO, rgExtension), 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCRLEntry(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- struct AsnDecodeSequenceItem items[] = {
- { ASN_INTEGER, offsetof(CRL_ENTRY, SerialNumber),
- CRYPT_AsnDecodeIntegerInternal, sizeof(CRYPT_INTEGER_BLOB), FALSE, TRUE,
- offsetof(CRL_ENTRY, SerialNumber.pbData), 0 },
- { 0, offsetof(CRL_ENTRY, RevocationDate), CRYPT_AsnDecodeChoiceOfTime,
- sizeof(FILETIME), FALSE, FALSE, 0 },
- { ASN_SEQUENCEOF, offsetof(CRL_ENTRY, cExtension),
- CRYPT_AsnDecodeExtensionsInternal, sizeof(CERT_EXTENSIONS), TRUE, TRUE,
- offsetof(CRL_ENTRY, rgExtension), 0 },
- };
- PCRL_ENTRY entry = (PCRL_ENTRY)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags, entry,
- *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- NULL, entry, pcbStructInfo, entry ? entry->SerialNumber.pbData : NULL);
- return ret;
-}
-
-/* Warning: assumes pvStructInfo is a struct GenericArray whose rgItems has
- * been set prior to calling.
- */
-static BOOL WINAPI CRYPT_AsnDecodeCRLEntries(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeCRLEntry, sizeof(CRL_ENTRY), TRUE,
- offsetof(CRL_ENTRY, SerialNumber.pbData) };
- struct GenericArray *entries = (struct GenericArray *)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo,
- entries ? entries->rgItems : NULL);
- TRACE("Returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCRLInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_CONTEXT | ASN_CONSTRUCTOR, offsetof(CRL_INFO, dwVersion),
- CRYPT_AsnDecodeCertVersion, sizeof(DWORD), TRUE, FALSE, 0, 0 },
- { ASN_SEQUENCEOF, offsetof(CRL_INFO, SignatureAlgorithm),
- CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
- FALSE, TRUE, offsetof(CRL_INFO, SignatureAlgorithm.pszObjId), 0 },
- { 0, offsetof(CRL_INFO, Issuer), CRYPT_AsnDecodeDerBlob,
- sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CRL_INFO,
- Issuer.pbData) },
- { 0, offsetof(CRL_INFO, ThisUpdate), CRYPT_AsnDecodeChoiceOfTime,
- sizeof(FILETIME), FALSE, FALSE, 0 },
- { 0, offsetof(CRL_INFO, NextUpdate), CRYPT_AsnDecodeChoiceOfTime,
- sizeof(FILETIME), TRUE, FALSE, 0 },
- { ASN_SEQUENCEOF, offsetof(CRL_INFO, cCRLEntry),
- CRYPT_AsnDecodeCRLEntries, sizeof(struct GenericArray), TRUE, TRUE,
- offsetof(CRL_INFO, rgCRLEntry), 0 },
- /* Note that the extensions are ignored by MS, so I'll ignore them too
- */
- { 0, offsetof(CRL_INFO, cExtension), NULL,
- sizeof(CERT_EXTENSIONS), TRUE, FALSE, 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
-
- TRACE("Returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeOidInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (pbEncoded[0] == ASN_OBJECTIDENTIFIER)
- {
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- DWORD bytesNeeded = sizeof(LPSTR);
-
- if (dataLen)
- {
- /* The largest possible string for the first two components
- * is 2.175 (= 2 * 40 + 175 = 255), so this is big enough.
- */
- char firstTwo[6];
- const BYTE *ptr;
-
- snprintf(firstTwo, sizeof(firstTwo), "%d.%d",
- pbEncoded[1 + lenBytes] / 40,
- pbEncoded[1 + lenBytes] - (pbEncoded[1 + lenBytes] / 40)
- * 40);
- bytesNeeded += strlen(firstTwo) + 1;
- for (ptr = pbEncoded + 2 + lenBytes; ret &&
- ptr - pbEncoded - 1 - lenBytes < dataLen; )
- {
- /* large enough for ".4000000" */
- char str[9];
- int val = 0;
-
- while (ptr - pbEncoded - 1 - lenBytes < dataLen &&
- (*ptr & 0x80))
- {
- val <<= 7;
- val |= *ptr & 0x7f;
- ptr++;
- }
- if (ptr - pbEncoded - 1 - lenBytes >= dataLen ||
- (*ptr & 0x80))
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- val <<= 7;
- val |= *ptr++;
- snprintf(str, sizeof(str), ".%d", val);
- bytesNeeded += strlen(str);
- }
- }
- }
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- if (dataLen)
- {
- const BYTE *ptr;
- LPSTR pszObjId = *(LPSTR *)pvStructInfo;
-
- *pszObjId = 0;
- sprintf(pszObjId, "%d.%d", pbEncoded[1 + lenBytes] / 40,
- pbEncoded[1 + lenBytes] - (pbEncoded[1 + lenBytes] /
- 40) * 40);
- pszObjId += strlen(pszObjId);
- for (ptr = pbEncoded + 2 + lenBytes; ret &&
- ptr - pbEncoded - 1 - lenBytes < dataLen; )
- {
- int val = 0;
-
- while (ptr - pbEncoded - 1 - lenBytes < dataLen &&
- (*ptr & 0x80))
- {
- val <<= 7;
- val |= *ptr & 0x7f;
- ptr++;
- }
- val <<= 7;
- val |= *ptr++;
- sprintf(pszObjId, ".%d", val);
- pszObjId += strlen(pszObjId);
- }
- }
- else
- *(LPSTR *)pvStructInfo = NULL;
- *pcbStructInfo = bytesNeeded;
- }
- }
- }
- return ret;
-}
-
-/* Warning: assumes pvStructInfo is a CERT_EXTENSION whose pszObjId is set
- * ahead of time!
- */
-static BOOL WINAPI CRYPT_AsnDecodeExtension(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- struct AsnDecodeSequenceItem items[] = {
- { ASN_OBJECTIDENTIFIER, offsetof(CERT_EXTENSION, pszObjId),
- CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
- offsetof(CERT_EXTENSION, pszObjId), 0 },
- { ASN_BOOL, offsetof(CERT_EXTENSION, fCritical), CRYPT_AsnDecodeBool,
- sizeof(BOOL), TRUE, FALSE, 0, 0 },
- { ASN_OCTETSTRING, offsetof(CERT_EXTENSION, Value),
- CRYPT_AsnDecodeOctetsInternal, sizeof(CRYPT_OBJID_BLOB), FALSE, TRUE,
- offsetof(CERT_EXTENSION, Value.pbData) },
- };
- BOOL ret = TRUE;
- PCERT_EXTENSION ext = (PCERT_EXTENSION)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags, ext,
- *pcbStructInfo);
-
- if (ext)
- TRACE("ext->pszObjId is %p\n", ext->pszObjId);
- ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags, NULL,
- ext, pcbStructInfo, ext ? ext->pszObjId : NULL);
- if (ext)
- TRACE("ext->pszObjId is %p (%s)\n", ext->pszObjId,
- debugstr_a(ext->pszObjId));
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeExtensionsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeExtension, sizeof(CERT_EXTENSION), TRUE,
- offsetof(CERT_EXTENSION, pszObjId) };
- PCERT_EXTENSIONS exts = (PCERT_EXTENSIONS)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, exts ? exts->rgExtension : NULL);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeExtensions(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, pcbStructInfo);
- if (ret && pvStructInfo)
- {
- ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara, pvStructInfo,
- pcbStructInfo, *pcbStructInfo);
- if (ret)
- {
- CERT_EXTENSIONS *exts;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- exts = (CERT_EXTENSIONS *)pvStructInfo;
- exts->rgExtension = (CERT_EXTENSION *)((BYTE *)exts +
- sizeof(CERT_EXTENSIONS));
- ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
- pcbStructInfo);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-/* Warning: this assumes the address of value->Value.pbData is already set, in
- * order to avoid overwriting memory. (In some cases, it may change it, if it
- * doesn't copy anything to memory.) Be sure to set it correctly!
- */
-static BOOL WINAPI CRYPT_AsnDecodeNameValue(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- DWORD dataLen;
- CERT_NAME_VALUE *value = (CERT_NAME_VALUE *)pvStructInfo;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- switch (pbEncoded[0])
- {
- case ASN_NUMERICSTRING:
- case ASN_PRINTABLESTRING:
- case ASN_IA5STRING:
- break;
- default:
- FIXME("Unimplemented string type %02x\n", pbEncoded[0]);
- SetLastError(OSS_UNIMPLEMENTED);
- ret = FALSE;
- }
- if (ret)
- {
- DWORD bytesNeeded = sizeof(CERT_NAME_VALUE);
-
- switch (pbEncoded[0])
- {
- case ASN_NUMERICSTRING:
- case ASN_PRINTABLESTRING:
- case ASN_IA5STRING:
- if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
- bytesNeeded += dataLen;
- break;
- }
- if (!value)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pcbStructInfo = bytesNeeded;
- switch (pbEncoded[0])
- {
- case ASN_NUMERICSTRING:
- value->dwValueType = CERT_RDN_NUMERIC_STRING;
- break;
- case ASN_PRINTABLESTRING:
- value->dwValueType = CERT_RDN_PRINTABLE_STRING;
- break;
- case ASN_IA5STRING:
- value->dwValueType = CERT_RDN_IA5_STRING;
- break;
- }
- if (dataLen)
- {
- switch (pbEncoded[0])
- {
- case ASN_NUMERICSTRING:
- case ASN_PRINTABLESTRING:
- case ASN_IA5STRING:
- value->Value.cbData = dataLen;
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- value->Value.pbData = (BYTE *)pbEncoded + 1 +
- lenBytes;
- else
- {
- assert(value->Value.pbData);
- memcpy(value->Value.pbData,
- pbEncoded + 1 + lenBytes, dataLen);
- }
- break;
- }
- }
- else
- {
- value->Value.cbData = 0;
- value->Value.pbData = NULL;
- }
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeRdnAttr(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_OBJECTIDENTIFIER, offsetof(CERT_RDN_ATTR, pszObjId),
- CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
- offsetof(CERT_RDN_ATTR, pszObjId), 0 },
- { 0, offsetof(CERT_RDN_ATTR, dwValueType), CRYPT_AsnDecodeNameValue,
- sizeof(CERT_NAME_VALUE), FALSE, TRUE, offsetof(CERT_RDN_ATTR,
- Value.pbData), 0 },
- };
- CERT_RDN_ATTR *attr = (CERT_RDN_ATTR *)pvStructInfo;
-
- if (attr)
- TRACE("attr->pszObjId is %p\n", attr->pszObjId);
- ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags, NULL,
- attr, pcbStructInfo, attr ? attr->pszObjId : NULL);
- if (attr)
- {
- TRACE("attr->pszObjId is %p (%s)\n", attr->pszObjId,
- debugstr_a(attr->pszObjId));
- TRACE("attr->dwValueType is %ld\n", attr->dwValueType);
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeRdn(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_CONSTRUCTOR | ASN_SETOF,
- CRYPT_AsnDecodeRdnAttr, sizeof(CERT_RDN_ATTR), TRUE,
- offsetof(CERT_RDN_ATTR, pszObjId) };
- PCERT_RDN rdn = (PCERT_RDN)pvStructInfo;
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, rdn ? rdn->rgRDNAttr : NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeName(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeRdn, sizeof(CERT_RDN), TRUE,
- offsetof(CERT_RDN, rgRDNAttr) };
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCopyBytes(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
- DWORD bytesNeeded = sizeof(CRYPT_OBJID_BLOB);
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
- bytesNeeded += cbEncoded;
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- *pcbStructInfo = bytesNeeded;
- ret = FALSE;
- }
- else
- {
- PCRYPT_OBJID_BLOB blob = (PCRYPT_OBJID_BLOB)pvStructInfo;
-
- *pcbStructInfo = bytesNeeded;
- blob->cbData = cbEncoded;
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- blob->pbData = (LPBYTE)pbEncoded;
- else
- {
- assert(blob->pbData);
- memcpy(blob->pbData, pbEncoded, blob->cbData);
- }
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeAlgorithmId(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- CRYPT_ALGORITHM_IDENTIFIER *algo =
- (CRYPT_ALGORITHM_IDENTIFIER *)pvStructInfo;
- BOOL ret = TRUE;
- struct AsnDecodeSequenceItem items[] = {
- { ASN_OBJECTIDENTIFIER, offsetof(CRYPT_ALGORITHM_IDENTIFIER, pszObjId),
- CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
- offsetof(CRYPT_ALGORITHM_IDENTIFIER, pszObjId), 0 },
- { 0, offsetof(CRYPT_ALGORITHM_IDENTIFIER, Parameters),
- CRYPT_AsnDecodeCopyBytes, sizeof(CRYPT_OBJID_BLOB), TRUE, TRUE,
- offsetof(CRYPT_ALGORITHM_IDENTIFIER, Parameters.pbData), 0 },
- };
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, algo ? algo->pszObjId : NULL);
- if (ret && pvStructInfo)
- {
- TRACE("pszObjId is %p (%s)\n", algo->pszObjId,
- debugstr_a(algo->pszObjId));
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodePubKeyInfoInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
- struct AsnDecodeSequenceItem items[] = {
- { ASN_SEQUENCEOF, offsetof(CERT_PUBLIC_KEY_INFO, Algorithm),
- CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
- FALSE, TRUE, offsetof(CERT_PUBLIC_KEY_INFO,
- Algorithm.pszObjId) },
- { ASN_BITSTRING, offsetof(CERT_PUBLIC_KEY_INFO, PublicKey),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), FALSE, TRUE,
- offsetof(CERT_PUBLIC_KEY_INFO, PublicKey.pbData) },
- };
- PCERT_PUBLIC_KEY_INFO info = (PCERT_PUBLIC_KEY_INFO)pvStructInfo;
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, info ?
- info->Algorithm.Parameters.pbData : NULL);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodePubKeyInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if ((ret = CRYPT_AsnDecodePubKeyInfoInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- PCERT_PUBLIC_KEY_INFO info;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- info = (PCERT_PUBLIC_KEY_INFO)pvStructInfo;
- info->Algorithm.Parameters.pbData = (BYTE *)pvStructInfo +
- sizeof(CERT_PUBLIC_KEY_INFO);
- ret = CRYPT_AsnDecodePubKeyInfoInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBool(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (cbEncoded < 3)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if (GET_LEN_BYTES(pbEncoded[1]) > 1)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if (pbEncoded[1] > 1)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(BOOL);
- ret = TRUE;
- }
- else if (*pcbStructInfo < sizeof(BOOL))
- {
- *pcbStructInfo = sizeof(BOOL);
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *(BOOL *)pvStructInfo = pbEncoded[2] ? TRUE : FALSE;
- ret = TRUE;
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeAltNameEntry(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- PCERT_ALT_NAME_ENTRY entry = (PCERT_ALT_NAME_ENTRY)pvStructInfo;
- DWORD dataLen, lenBytes, bytesNeeded = sizeof(CERT_ALT_NAME_ENTRY);
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (cbEncoded < 2)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if ((pbEncoded[0] & ASN_FLAGS_MASK) != ASN_CONTEXT)
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- return FALSE;
- }
- lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- if (1 + lenBytes > cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- switch (pbEncoded[0] & ASN_TYPE_MASK)
- {
- case 1: /* rfc822Name */
- case 2: /* dNSName */
- case 6: /* uniformResourceIdentifier */
- bytesNeeded += (dataLen + 1) * sizeof(WCHAR);
- break;
- case 7: /* iPAddress */
- bytesNeeded += dataLen;
- break;
- case 8: /* registeredID */
- /* FIXME: decode as OID */
- case 0: /* otherName */
- case 4: /* directoryName */
- FIXME("stub\n");
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- break;
- case 3: /* x400Address, unimplemented */
- case 5: /* ediPartyName, unimplemented */
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- break;
- default:
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- if (ret)
- {
- if (!entry)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pcbStructInfo = bytesNeeded;
- /* MS used values one greater than the asn1 ones.. sigh */
- entry->dwAltNameChoice = (pbEncoded[0] & 0x7f) + 1;
- switch (pbEncoded[0] & ASN_TYPE_MASK)
- {
- case 1: /* rfc822Name */
- case 2: /* dNSName */
- case 6: /* uniformResourceIdentifier */
- {
- DWORD i;
-
- for (i = 0; i < dataLen; i++)
- entry->u.pwszURL[i] =
- (WCHAR)pbEncoded[1 + lenBytes + i];
- entry->u.pwszURL[i] = 0;
- TRACE("URL is %p (%s)\n", entry->u.pwszURL,
- debugstr_w(entry->u.pwszURL));
- break;
- }
- case 7: /* iPAddress */
- /* The next data pointer is in the pwszURL spot, that is,
- * the first 4 bytes. Need to move it to the next spot.
- */
- entry->u.IPAddress.pbData = (LPBYTE)entry->u.pwszURL;
- entry->u.IPAddress.cbData = dataLen;
- memcpy(entry->u.IPAddress.pbData, pbEncoded + 1 + lenBytes,
- dataLen);
- break;
- }
- }
- }
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeAltNameInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeAltNameEntry, sizeof(CERT_ALT_NAME_ENTRY), TRUE,
- offsetof(CERT_ALT_NAME_ENTRY, u.pwszURL) };
- PCERT_ALT_NAME_INFO info = (PCERT_ALT_NAME_INFO)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (info)
- TRACE("info->rgAltEntry is %p\n", info->rgAltEntry);
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, info ? info->rgAltEntry : NULL);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeAltName(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeAltNameEntry, sizeof(CERT_ALT_NAME_ENTRY), TRUE,
- offsetof(CERT_ALT_NAME_ENTRY, u.pwszURL) };
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-struct PATH_LEN_CONSTRAINT
-{
- BOOL fPathLenConstraint;
- DWORD dwPathLenConstraint;
-};
-
-static BOOL WINAPI CRYPT_AsnDecodePathLenConstraint(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pvStructInfo, *pcbStructInfo);
-
- if (cbEncoded)
- {
- if (pbEncoded[0] == ASN_INTEGER)
- {
- DWORD bytesNeeded = sizeof(struct PATH_LEN_CONSTRAINT);
-
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- *pcbStructInfo = bytesNeeded;
- ret = FALSE;
- }
- else
- {
- struct PATH_LEN_CONSTRAINT *constraint =
- (struct PATH_LEN_CONSTRAINT *)pvStructInfo;
- DWORD size = sizeof(constraint->dwPathLenConstraint);
-
- ret = CRYPT_AsnDecodeInt(dwCertEncodingType, X509_INTEGER,
- pbEncoded, cbEncoded, 0, NULL,
- &constraint->dwPathLenConstraint, &size);
- if (ret)
- constraint->fPathLenConstraint = TRUE;
- TRACE("got an int, dwPathLenConstraint is %ld\n",
- constraint->dwPathLenConstraint);
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeSubtreeConstraints(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeCopyBytes, sizeof(CERT_NAME_BLOB), TRUE,
- offsetof(CERT_NAME_BLOB, pbData) };
- struct GenericArray *entries = (struct GenericArray *)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo,
- entries ? entries->rgItems : NULL);
- TRACE("Returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBasicConstraints(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_BITSTRING, offsetof(CERT_BASIC_CONSTRAINTS_INFO, SubjectType),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), FALSE, TRUE,
- offsetof(CERT_BASIC_CONSTRAINTS_INFO, SubjectType.pbData), 0 },
- { ASN_INTEGER, offsetof(CERT_BASIC_CONSTRAINTS_INFO,
- fPathLenConstraint), CRYPT_AsnDecodePathLenConstraint,
- sizeof(struct PATH_LEN_CONSTRAINT), TRUE, FALSE, 0, 0 },
- { ASN_SEQUENCEOF, offsetof(CERT_BASIC_CONSTRAINTS_INFO,
- cSubtreesConstraint), CRYPT_AsnDecodeSubtreeConstraints,
- sizeof(struct GenericArray), TRUE, TRUE,
- offsetof(CERT_BASIC_CONSTRAINTS_INFO, rgSubtreesConstraint), 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBasicConstraints2(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_BOOL, offsetof(CERT_BASIC_CONSTRAINTS2_INFO, fCA),
- CRYPT_AsnDecodeBool, sizeof(BOOL), TRUE, FALSE, 0, 0 },
- { ASN_INTEGER, offsetof(CERT_BASIC_CONSTRAINTS2_INFO,
- fPathLenConstraint), CRYPT_AsnDecodePathLenConstraint,
- sizeof(struct PATH_LEN_CONSTRAINT), TRUE, FALSE, 0, 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-#define RSA1_MAGIC 0x31415352
-
-struct DECODED_RSA_PUB_KEY
-{
- DWORD pubexp;
- CRYPT_INTEGER_BLOB modulus;
-};
-
-static BOOL WINAPI CRYPT_AsnDecodeRsaPubKey(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_INTEGER, offsetof(struct DECODED_RSA_PUB_KEY, modulus),
- CRYPT_AsnDecodeUnsignedIntegerInternal, sizeof(CRYPT_INTEGER_BLOB),
- FALSE, TRUE, offsetof(struct DECODED_RSA_PUB_KEY, modulus.pbData),
- 0 },
- { ASN_INTEGER, offsetof(struct DECODED_RSA_PUB_KEY, pubexp),
- CRYPT_AsnDecodeInt, sizeof(DWORD), FALSE, FALSE, 0, 0 },
- };
- struct DECODED_RSA_PUB_KEY *decodedKey = NULL;
- DWORD size = 0;
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded,
- CRYPT_DECODE_ALLOC_FLAG, NULL, &decodedKey, &size, NULL);
- if (ret)
- {
- DWORD bytesNeeded = sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) +
- decodedKey->modulus.cbData;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = bytesNeeded;
- ret = TRUE;
- }
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- BLOBHEADER *hdr;
- RSAPUBKEY *rsaPubKey;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- hdr = (BLOBHEADER *)pvStructInfo;
- hdr->bType = PUBLICKEYBLOB;
- hdr->bVersion = CUR_BLOB_VERSION;
- hdr->reserved = 0;
- hdr->aiKeyAlg = CALG_RSA_KEYX;
- rsaPubKey = (RSAPUBKEY *)((BYTE *)pvStructInfo +
- sizeof(BLOBHEADER));
- rsaPubKey->magic = RSA1_MAGIC;
- rsaPubKey->pubexp = decodedKey->pubexp;
- rsaPubKey->bitlen = decodedKey->modulus.cbData * 8;
- memcpy((BYTE *)pvStructInfo + sizeof(BLOBHEADER) +
- sizeof(RSAPUBKEY), decodedKey->modulus.pbData,
- decodedKey->modulus.cbData);
- }
- LocalFree(decodedKey);
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeOctetsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- DWORD bytesNeeded, dataLen;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- bytesNeeded = sizeof(CRYPT_DATA_BLOB);
- else
- bytesNeeded = dataLen + sizeof(CRYPT_DATA_BLOB);
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- *pcbStructInfo = bytesNeeded;
- ret = FALSE;
- }
- else
- {
- CRYPT_DATA_BLOB *blob;
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- blob = (CRYPT_DATA_BLOB *)pvStructInfo;
- blob->cbData = dataLen;
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- blob->pbData = (BYTE *)pbEncoded + 1 + lenBytes;
- else
- {
- assert(blob->pbData);
- if (blob->cbData)
- memcpy(blob->pbData, pbEncoded + 1 + lenBytes,
- blob->cbData);
- }
- }
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeOctets(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if (!cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else if (pbEncoded[0] != ASN_OCTETSTRING)
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- else if ((ret = CRYPT_AsnDecodeOctetsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_DATA_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_DATA_BLOB *)pvStructInfo;
- blob->pbData = (BYTE *)pvStructInfo + sizeof(CRYPT_DATA_BLOB);
- ret = CRYPT_AsnDecodeOctetsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBitsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("(%p, %ld, 0x%08lx, %p, %p, %ld)\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (pbEncoded[0] == ASN_BITSTRING)
- {
- DWORD bytesNeeded, dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- bytesNeeded = sizeof(CRYPT_BIT_BLOB);
- else
- bytesNeeded = dataLen - 1 + sizeof(CRYPT_BIT_BLOB);
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- CRYPT_BIT_BLOB *blob;
-
- blob = (CRYPT_BIT_BLOB *)pvStructInfo;
- blob->cbData = dataLen - 1;
- blob->cUnusedBits = *(pbEncoded + 1 +
- GET_LEN_BYTES(pbEncoded[1]));
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- {
- blob->pbData = (BYTE *)pbEncoded + 2 +
- GET_LEN_BYTES(pbEncoded[1]);
- }
- else
- {
- assert(blob->pbData);
- if (blob->cbData)
- {
- BYTE mask = 0xff << blob->cUnusedBits;
-
- memcpy(blob->pbData, pbEncoded + 2 +
- GET_LEN_BYTES(pbEncoded[1]), blob->cbData);
- blob->pbData[blob->cbData - 1] &= mask;
- }
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBits(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("(%p, %ld, 0x%08lx, %p, %p, %p)\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo);
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if ((ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_BIT_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_BIT_BLOB *)pvStructInfo;
- blob->pbData = (BYTE *)pvStructInfo + sizeof(CRYPT_BIT_BLOB);
- ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeInt(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(int);
- return TRUE;
- }
- __TRY
- {
- BYTE buf[sizeof(CRYPT_INTEGER_BLOB) + sizeof(int)];
- CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)buf;
- DWORD size = sizeof(buf);
-
- blob->pbData = buf + sizeof(CRYPT_INTEGER_BLOB);
- ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
- X509_MULTI_BYTE_INTEGER, pbEncoded, cbEncoded, 0, NULL, &buf, &size);
- if (ret)
- {
- if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, sizeof(int))))
- {
- int val, i;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- if (blob->pbData[blob->cbData - 1] & 0x80)
- {
- /* initialize to a negative value to sign-extend */
- val = -1;
- }
- else
- val = 0;
- for (i = 0; i < blob->cbData; i++)
- {
- val <<= 8;
- val |= blob->pbData[blob->cbData - i - 1];
- }
- memcpy(pvStructInfo, &val, sizeof(int));
- }
- }
- else if (GetLastError() == ERROR_MORE_DATA)
- SetLastError(CRYPT_E_ASN1_LARGE);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeIntegerInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (pbEncoded[0] == ASN_INTEGER)
- {
- DWORD bytesNeeded, dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- bytesNeeded = dataLen + sizeof(CRYPT_INTEGER_BLOB);
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
-
- blob->cbData = dataLen;
- assert(blob->pbData);
- if (blob->cbData)
- {
- DWORD i;
-
- for (i = 0; i < blob->cbData; i++)
- {
- blob->pbData[i] = *(pbEncoded + 1 + lenBytes +
- dataLen - i - 1);
- }
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeInteger(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if ((ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_INTEGER_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
- blob->pbData = (BYTE *)pvStructInfo +
- sizeof(CRYPT_INTEGER_BLOB);
- ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeUnsignedIntegerInternal(
- DWORD dwCertEncodingType, LPCSTR lpszStructType, const BYTE *pbEncoded,
- DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
- void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (pbEncoded[0] == ASN_INTEGER)
- {
- DWORD bytesNeeded, dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- bytesNeeded = dataLen + sizeof(CRYPT_INTEGER_BLOB);
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
-
- blob->cbData = dataLen;
- assert(blob->pbData);
- /* remove leading zero byte if it exists */
- if (blob->cbData && *(pbEncoded + 1 + lenBytes) == 0)
- {
- blob->cbData--;
- blob->pbData++;
- }
- if (blob->cbData)
- {
- DWORD i;
-
- for (i = 0; i < blob->cbData; i++)
- {
- blob->pbData[i] = *(pbEncoded + 1 + lenBytes +
- dataLen - i - 1);
- }
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeUnsignedInteger(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if ((ret = CRYPT_AsnDecodeUnsignedIntegerInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_INTEGER_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
- blob->pbData = (BYTE *)pvStructInfo +
- sizeof(CRYPT_INTEGER_BLOB);
- ret = CRYPT_AsnDecodeUnsignedIntegerInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeEnumerated(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(int);
- return TRUE;
- }
- __TRY
- {
- if (pbEncoded[0] == ASN_ENUMERATED)
- {
- unsigned int val = 0, i;
-
- if (cbEncoded <= 1)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else if (pbEncoded[1] == 0)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- /* A little strange looking, but we have to accept a sign byte:
- * 0xffffffff gets encoded as 0a 05 00 ff ff ff ff. Also,
- * assuming a small length is okay here, it has to be in short
- * form.
- */
- if (pbEncoded[1] > sizeof(unsigned int) + 1)
- {
- SetLastError(CRYPT_E_ASN1_LARGE);
- return FALSE;
- }
- for (i = 0; i < pbEncoded[1]; i++)
- {
- val <<= 8;
- val |= pbEncoded[2 + i];
- }
- if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, sizeof(unsigned int))))
- {
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- memcpy(pvStructInfo, &val, sizeof(unsigned int));
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-/* Modifies word, pbEncoded, and len, and magically sets a value ret to FALSE
- * if it fails.
- */
-#define CRYPT_TIME_GET_DIGITS(pbEncoded, len, numDigits, word) \
- do { \
- BYTE i; \
- \
- (word) = 0; \
- for (i = 0; (len) > 0 && i < (numDigits); i++, (len)--) \
- { \
- if (!isdigit(*(pbEncoded))) \
- { \
- SetLastError(CRYPT_E_ASN1_CORRUPT); \
- ret = FALSE; \
- } \
- else \
- { \
- (word) *= 10; \
- (word) += *(pbEncoded)++ - '0'; \
- } \
- } \
- } while (0)
-
-static BOOL CRYPT_AsnDecodeTimeZone(const BYTE *pbEncoded, DWORD len,
- SYSTEMTIME *sysTime)
-{
- BOOL ret;
-
- __TRY
- {
- ret = TRUE;
- if (len >= 3 && (*pbEncoded == '+' || *pbEncoded == '-'))
- {
- WORD hours, minutes = 0;
- BYTE sign = *pbEncoded++;
-
- len--;
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, hours);
- if (ret && hours >= 24)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else if (len >= 2)
- {
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, minutes);
- if (ret && minutes >= 60)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- }
- if (ret)
- {
- if (sign == '+')
- {
- sysTime->wHour += hours;
- sysTime->wMinute += minutes;
- }
- else
- {
- if (hours > sysTime->wHour)
- {
- sysTime->wDay--;
- sysTime->wHour = 24 - (hours - sysTime->wHour);
- }
- else
- sysTime->wHour -= hours;
- if (minutes > sysTime->wMinute)
- {
- sysTime->wHour--;
- sysTime->wMinute = 60 - (minutes - sysTime->wMinute);
- }
- else
- sysTime->wMinute -= minutes;
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-#define MIN_ENCODED_TIME_LENGTH 10
-
-static BOOL WINAPI CRYPT_AsnDecodeUtcTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(FILETIME);
- return TRUE;
- }
- __TRY
- {
- ret = TRUE;
- if (pbEncoded[0] == ASN_UTCTIME)
- {
- if (cbEncoded <= 1)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else if (pbEncoded[1] > 0x7f)
- {
- /* long-form date strings really can't be valid */
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- SYSTEMTIME sysTime = { 0 };
- BYTE len = pbEncoded[1];
-
- if (len < MIN_ENCODED_TIME_LENGTH)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- pbEncoded += 2;
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wYear);
- if (sysTime.wYear >= 50)
- sysTime.wYear += 1900;
- else
- sysTime.wYear += 2000;
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMonth);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wDay);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wHour);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMinute);
- if (ret && len > 0)
- {
- if (len >= 2 && isdigit(*pbEncoded) &&
- isdigit(*(pbEncoded + 1)))
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
- sysTime.wSecond);
- else if (isdigit(*pbEncoded))
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 1,
- sysTime.wSecond);
- if (ret)
- ret = CRYPT_AsnDecodeTimeZone(pbEncoded, len,
- &sysTime);
- }
- if (ret && (ret = CRYPT_DecodeEnsureSpace(dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo,
- sizeof(FILETIME))))
- {
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- ret = SystemTimeToFileTime(&sysTime,
- (FILETIME *)pvStructInfo);
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeGeneralizedTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(FILETIME);
- return TRUE;
- }
- __TRY
- {
- ret = TRUE;
- if (pbEncoded[0] == ASN_GENERALTIME)
- {
- if (cbEncoded <= 1)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else if (pbEncoded[1] > 0x7f)
- {
- /* long-form date strings really can't be valid */
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- BYTE len = pbEncoded[1];
-
- if (len < MIN_ENCODED_TIME_LENGTH)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- SYSTEMTIME sysTime = { 0 };
-
- pbEncoded += 2;
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 4, sysTime.wYear);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMonth);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wDay);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wHour);
- if (ret && len > 0)
- {
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
- sysTime.wMinute);
- if (ret && len > 0)
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
- sysTime.wSecond);
- if (ret && len > 0 && (*pbEncoded == '.' ||
- *pbEncoded == ','))
- {
- BYTE digits;
-
- pbEncoded++;
- len--;
- /* workaround macro weirdness */
- digits = min(len, 3);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, digits,
- sysTime.wMilliseconds);
- }
- if (ret)
- ret = CRYPT_AsnDecodeTimeZone(pbEncoded, len,
- &sysTime);
- }
- if (ret && (ret = CRYPT_DecodeEnsureSpace(dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo,
- sizeof(FILETIME))))
- {
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- ret = SystemTimeToFileTime(&sysTime,
- (FILETIME *)pvStructInfo);
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeChoiceOfTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- if (pbEncoded[0] == ASN_UTCTIME)
- ret = CRYPT_AsnDecodeUtcTime(dwCertEncodingType, lpszStructType,
- pbEncoded, cbEncoded, dwFlags, pDecodePara, pvStructInfo,
- pcbStructInfo);
- else if (pbEncoded[0] == ASN_GENERALTIME)
- ret = CRYPT_AsnDecodeGeneralizedTime(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded, dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo);
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeSequenceOfAny(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- if (pbEncoded[0] == ASN_SEQUENCEOF)
- {
- DWORD bytesNeeded, dataLen, remainingLen, cValue;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes;
- const BYTE *ptr;
-
- lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- bytesNeeded = sizeof(CRYPT_SEQUENCE_OF_ANY);
- cValue = 0;
- ptr = pbEncoded + 1 + lenBytes;
- remainingLen = dataLen;
- while (ret && remainingLen)
- {
- DWORD nextLen;
-
- ret = CRYPT_GetLen(ptr, remainingLen, &nextLen);
- if (ret)
- {
- DWORD nextLenBytes = GET_LEN_BYTES(ptr[1]);
-
- remainingLen -= 1 + nextLenBytes + nextLen;
- ptr += 1 + nextLenBytes + nextLen;
- bytesNeeded += sizeof(CRYPT_DER_BLOB);
- if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
- bytesNeeded += 1 + nextLenBytes + nextLen;
- cValue++;
- }
- }
- if (ret)
- {
- CRYPT_SEQUENCE_OF_ANY *seq;
- BYTE *nextPtr;
- DWORD i;
-
- if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- seq = (CRYPT_SEQUENCE_OF_ANY *)pvStructInfo;
- seq->cValue = cValue;
- seq->rgValue = (CRYPT_DER_BLOB *)((BYTE *)seq +
- sizeof(*seq));
- nextPtr = (BYTE *)seq->rgValue +
- cValue * sizeof(CRYPT_DER_BLOB);
- ptr = pbEncoded + 1 + lenBytes;
- remainingLen = dataLen;
- i = 0;
- while (ret && remainingLen)
- {
- DWORD nextLen;
-
- ret = CRYPT_GetLen(ptr, remainingLen, &nextLen);
- if (ret)
- {
- DWORD nextLenBytes = GET_LEN_BYTES(ptr[1]);
-
- seq->rgValue[i].cbData = 1 + nextLenBytes +
- nextLen;
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- seq->rgValue[i].pbData = (BYTE *)ptr;
- else
- {
- seq->rgValue[i].pbData = nextPtr;
- memcpy(nextPtr, ptr, 1 + nextLenBytes +
- nextLen);
- nextPtr += 1 + nextLenBytes + nextLen;
- }
- remainingLen -= 1 + nextLenBytes + nextLen;
- ptr += 1 + nextLenBytes + nextLen;
- i++;
- }
- }
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- return FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeDistPoint(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- struct AsnDecodeSequenceItem items[] = {
- { ASN_CONTEXT | ASN_CONSTRUCTOR | 0, offsetof(CRL_DIST_POINT,
- DistPointName), CRYPT_AsnDecodeAltNameInternal,
- sizeof(CRL_DIST_POINT_NAME), TRUE, TRUE, offsetof(CRL_DIST_POINT,
- DistPointName.u.FullName.rgAltEntry), 0 },
- { ASN_CONTEXT | 1, offsetof(CRL_DIST_POINT, ReasonFlags),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
- offsetof(CRL_DIST_POINT, ReasonFlags.pbData), 0 },
- { ASN_CONTEXT | ASN_CONSTRUCTOR | 2, offsetof(CRL_DIST_POINT, CRLIssuer),
- CRYPT_AsnDecodeAltNameInternal, sizeof(CERT_ALT_NAME_INFO), TRUE, TRUE,
- offsetof(CRL_DIST_POINT, CRLIssuer.rgAltEntry), 0 },
- };
- BOOL ret;
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded,
- dwFlags, pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCRLDistPoints(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeDistPoint, sizeof(CRL_DIST_POINT), TRUE,
- offsetof(CRL_DIST_POINT, DistPointName.u.FullName.rgAltEntry) };
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeEnhancedKeyUsage(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), TRUE, 0 };
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-BOOL WINAPI CryptDecodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
- const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- static HCRYPTOIDFUNCSET set = NULL;
- BOOL ret = FALSE;
- CryptDecodeObjectExFunc decodeFunc = NULL;
- HCRYPTOIDFUNCADDR hFunc = NULL;
-
- TRACE("(0x%08lx, %s, %p, %ld, 0x%08lx, %p, %p, %p)\n",
- dwCertEncodingType, debugstr_a(lpszStructType), pbEncoded,
- cbEncoded, dwFlags, pDecodePara, pvStructInfo, pcbStructInfo);
-
- if (!pvStructInfo && !pcbStructInfo)
- {
- SetLastError(ERROR_INVALID_PARAMETER);
- return FALSE;
- }
- if ((dwCertEncodingType & CERT_ENCODING_TYPE_MASK) != X509_ASN_ENCODING
- && (dwCertEncodingType & CMSG_ENCODING_TYPE_MASK) != PKCS_7_ASN_ENCODING)
- {
- SetLastError(ERROR_FILE_NOT_FOUND);
- return FALSE;
- }
- if (!cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- return FALSE;
- }
- if (cbEncoded > MAX_ENCODED_LEN)
- {
- SetLastError(CRYPT_E_ASN1_LARGE);
- return FALSE;
- }
-
- SetLastError(NOERROR);
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG && pvStructInfo)
- *(BYTE **)pvStructInfo = NULL;
- if (!HIWORD(lpszStructType))
- {
- switch (LOWORD(lpszStructType))
- {
- case (WORD)X509_CERT:
- decodeFunc = CRYPT_AsnDecodeCert;
- break;
- case (WORD)X509_CERT_TO_BE_SIGNED:
- decodeFunc = CRYPT_AsnDecodeCertInfo;
- break;
- case (WORD)X509_CERT_CRL_TO_BE_SIGNED:
- decodeFunc = CRYPT_AsnDecodeCRLInfo;
- break;
- case (WORD)X509_EXTENSIONS:
- decodeFunc = CRYPT_AsnDecodeExtensions;
- break;
- case (WORD)X509_NAME:
- decodeFunc = CRYPT_AsnDecodeName;
- break;
- case (WORD)X509_PUBLIC_KEY_INFO:
- decodeFunc = CRYPT_AsnDecodePubKeyInfo;
- break;
- case (WORD)X509_ALTERNATE_NAME:
- decodeFunc = CRYPT_AsnDecodeAltName;
- break;
- case (WORD)X509_BASIC_CONSTRAINTS:
- decodeFunc = CRYPT_AsnDecodeBasicConstraints;
- break;
- case (WORD)X509_BASIC_CONSTRAINTS2:
- decodeFunc = CRYPT_AsnDecodeBasicConstraints2;
- break;
- case (WORD)RSA_CSP_PUBLICKEYBLOB:
- decodeFunc = CRYPT_AsnDecodeRsaPubKey;
- break;
- case (WORD)X509_OCTET_STRING:
- decodeFunc = CRYPT_AsnDecodeOctets;
- break;
- case (WORD)X509_BITS:
- case (WORD)X509_KEY_USAGE:
- decodeFunc = CRYPT_AsnDecodeBits;
- break;
- case (WORD)X509_INTEGER:
- decodeFunc = CRYPT_AsnDecodeInt;
- break;
- case (WORD)X509_MULTI_BYTE_INTEGER:
- decodeFunc = CRYPT_AsnDecodeInteger;
- break;
- case (WORD)X509_MULTI_BYTE_UINT:
- decodeFunc = CRYPT_AsnDecodeUnsignedInteger;
- break;
- case (WORD)X509_ENUMERATED:
- decodeFunc = CRYPT_AsnDecodeEnumerated;
- break;
- case (WORD)X509_CHOICE_OF_TIME:
- decodeFunc = CRYPT_AsnDecodeChoiceOfTime;
- break;
- case (WORD)X509_SEQUENCE_OF_ANY:
- decodeFunc = CRYPT_AsnDecodeSequenceOfAny;
- break;
- case (WORD)PKCS_UTC_TIME:
- decodeFunc = CRYPT_AsnDecodeUtcTime;
- break;
- case (WORD)X509_CRL_DIST_POINTS:
- decodeFunc = CRYPT_AsnDecodeCRLDistPoints;
- break;
- case (WORD)X509_ENHANCED_KEY_USAGE:
- decodeFunc = CRYPT_AsnDecodeEnhancedKeyUsage;
- break;
- default:
- FIXME("%d: unimplemented\n", LOWORD(lpszStructType));
- }
- }
- else if (!strcmp(lpszStructType, szOID_CERT_EXTENSIONS))
- decodeFunc = CRYPT_AsnDecodeExtensions;
- else if (!strcmp(lpszStructType, szOID_RSA_signingTime))
- decodeFunc = CRYPT_AsnDecodeUtcTime;
- else if (!strcmp(lpszStructType, szOID_CRL_REASON_CODE))
- decodeFunc = CRYPT_AsnDecodeEnumerated;
- else if (!strcmp(lpszStructType, szOID_KEY_USAGE))
- decodeFunc = CRYPT_AsnDecodeBits;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_KEY_IDENTIFIER))
- decodeFunc = CRYPT_AsnDecodeOctets;
- else if (!strcmp(lpszStructType, szOID_BASIC_CONSTRAINTS))
- decodeFunc = CRYPT_AsnDecodeBasicConstraints;
- else if (!strcmp(lpszStructType, szOID_BASIC_CONSTRAINTS2))
- decodeFunc = CRYPT_AsnDecodeBasicConstraints2;
- else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME2))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_NEXT_UPDATE_LOCATION))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME2))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_CRL_DIST_POINTS))
- decodeFunc = CRYPT_AsnDecodeCRLDistPoints;
- else if (!strcmp(lpszStructType, szOID_ENHANCED_KEY_USAGE))
- decodeFunc = CRYPT_AsnDecodeEnhancedKeyUsage;
- else
- TRACE("OID %s not found or unimplemented, looking for DLL\n",
- debugstr_a(lpszStructType));
- if (!decodeFunc)
- {
- if (!set)
- set = CryptInitOIDFunctionSet(CRYPT_OID_DECODE_OBJECT_EX_FUNC, 0);
- CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
- (void **)&decodeFunc, &hFunc);
- }
- if (decodeFunc)
- ret = decodeFunc(dwCertEncodingType, lpszStructType, pbEncoded,
- cbEncoded, dwFlags, pDecodePara, pvStructInfo, pcbStructInfo);
- else
- SetLastError(ERROR_FILE_NOT_FOUND);
- if (hFunc)
- CryptFreeOIDFunctionAddress(hFunc, 0);
- return ret;
-}
-
BOOL WINAPI CryptExportPublicKeyInfo(HCRYPTPROV hCryptProv, DWORD dwKeySpec,
DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo)
{
