2 * Copyright 2007 Juan Lang
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "wine/debug.h"
25 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
27 /* Called when a message's ref count reaches zero. Free any message-specific
30 typedef void (*CryptMsgCloseFunc)(HCRYPTMSG msg);
32 typedef BOOL (*CryptMsgGetParamFunc)(HCRYPTMSG hCryptMsg, DWORD dwParamType,
33 DWORD dwIndex, void *pvData, DWORD *pcbData);
35 typedef BOOL (*CryptMsgUpdateFunc)(HCRYPTMSG hCryptMsg, const BYTE *pbData,
36 DWORD cbData, BOOL fFinal);
38 typedef struct _CryptMsgBase
42 PCMSG_STREAM_INFO stream_info;
44 CryptMsgCloseFunc close;
45 CryptMsgUpdateFunc update;
46 CryptMsgGetParamFunc get_param;
49 static inline void CryptMsgBase_Init(CryptMsgBase *msg, DWORD dwFlags,
50 PCMSG_STREAM_INFO pStreamInfo)
53 msg->open_flags = dwFlags;
54 msg->stream_info = pStreamInfo;
55 msg->finalized = FALSE;
58 typedef struct _CDataEncodeMsg
61 DWORD bare_content_len;
65 static const BYTE empty_data_content[] = { 0x04,0x00 };
67 static void CDataEncodeMsg_Close(HCRYPTMSG hCryptMsg)
69 CDataEncodeMsg *msg = (CDataEncodeMsg *)hCryptMsg;
71 if (msg->bare_content != empty_data_content)
72 LocalFree(msg->bare_content);
75 static BOOL CDataEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
76 DWORD cbData, BOOL fFinal)
78 CDataEncodeMsg *msg = (CDataEncodeMsg *)hCryptMsg;
81 if (msg->base.finalized)
82 SetLastError(CRYPT_E_MSG_ERROR);
85 if (msg->base.open_flags & CMSG_DETACHED_FLAG)
86 SetLastError(E_INVALIDARG);
88 SetLastError(CRYPT_E_MSG_ERROR);
92 msg->base.finalized = TRUE;
94 SetLastError(E_INVALIDARG);
97 CRYPT_DATA_BLOB blob = { cbData, (LPBYTE)pbData };
99 /* data messages don't allow non-final updates, don't bother
100 * checking whether data already exist, they can't.
102 ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
103 &blob, CRYPT_ENCODE_ALLOC_FLAG, NULL, &msg->bare_content,
104 &msg->bare_content_len);
105 if (ret && msg->base.stream_info)
106 FIXME("stream info unimplemented\n");
112 static HCRYPTMSG CDataEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
113 LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
119 SetLastError(E_INVALIDARG);
122 FIXME("semi-stub\n");
123 msg = CryptMemAlloc(sizeof(CDataEncodeMsg));
126 CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo);
127 msg->base.close = CDataEncodeMsg_Close;
128 msg->base.update = CDataEncodeMsg_Update;
129 msg->bare_content_len = sizeof(empty_data_content);
130 msg->bare_content = (LPBYTE)empty_data_content;
132 return (HCRYPTMSG)msg;
135 static inline const char *MSG_TYPE_STR(DWORD type)
139 #define _x(x) case (x): return #x
143 _x(CMSG_SIGNED_AND_ENVELOPED);
148 return wine_dbg_sprintf("unknown (%d)", type);
152 HCRYPTMSG WINAPI CryptMsgOpenToEncode(DWORD dwMsgEncodingType, DWORD dwFlags,
153 DWORD dwMsgType, const void *pvMsgEncodeInfo, LPSTR pszInnerContentObjID,
154 PCMSG_STREAM_INFO pStreamInfo)
156 HCRYPTMSG msg = NULL;
158 TRACE("(%08x, %08x, %08x, %p, %s, %p)\n", dwMsgEncodingType, dwFlags,
159 dwMsgType, pvMsgEncodeInfo, debugstr_a(pszInnerContentObjID), pStreamInfo);
161 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
163 SetLastError(E_INVALIDARG);
169 msg = CDataEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
170 pszInnerContentObjID, pStreamInfo);
175 FIXME("unimplemented for type %s\n", MSG_TYPE_STR(dwMsgType));
177 case CMSG_SIGNED_AND_ENVELOPED:
179 /* defined but invalid, fall through */
181 SetLastError(CRYPT_E_INVALID_MSG_TYPE);
186 HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
187 DWORD dwMsgType, HCRYPTPROV hCryptProv, PCERT_INFO pRecipientInfo,
188 PCMSG_STREAM_INFO pStreamInfo)
190 FIXME("(%08x, %08x, %08x, %08lx, %p, %p): stub\n", dwMsgEncodingType,
191 dwFlags, dwMsgType, hCryptProv, pRecipientInfo, pStreamInfo);
193 if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
195 SetLastError(E_INVALIDARG);
201 HCRYPTMSG WINAPI CryptMsgDuplicate(HCRYPTMSG hCryptMsg)
203 TRACE("(%p)\n", hCryptMsg);
207 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
209 InterlockedIncrement(&msg->ref);
214 BOOL WINAPI CryptMsgClose(HCRYPTMSG hCryptMsg)
216 TRACE("(%p)\n", hCryptMsg);
220 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
222 if (InterlockedDecrement(&msg->ref) == 0)
224 TRACE("freeing %p\n", msg);
233 BOOL WINAPI CryptMsgUpdate(HCRYPTMSG hCryptMsg, const BYTE *pbData,
234 DWORD cbData, BOOL fFinal)
236 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
239 TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
240 if (msg && msg->update)
241 ret = msg->update(hCryptMsg, pbData, cbData, fFinal);
245 BOOL WINAPI CryptMsgGetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
246 DWORD dwIndex, void *pvData, DWORD *pcbData)
248 CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
251 TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
253 if (msg && msg->get_param)
254 ret = msg->get_param(hCryptMsg, dwParamType, dwIndex, pvData, pcbData);