2 * MPR Password Cache functions
4 * Copyright 1999 Ulrich Weigand
5 * Copyright 2003,2004 Mike McCormack for CodeWeavers
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 #include "wine/debug.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(mpr);
33 static const char mpr_key[] = "Software\\Wine\\Wine\\Mpr\\";
35 static inline BYTE hex( BYTE x )
42 static inline CHAR ctox( CHAR x )
44 if( ( x >= '0' ) && ( x <= '9' ) )
46 if( ( x >= 'A' ) && ( x <= 'F' ) )
48 if( ( x >= 'a' ) && ( x <= 'a' ) )
53 static LPSTR MPR_GetValueName( LPSTR pbResource, WORD cbResource, BYTE nType )
58 name = HeapAlloc( GetProcessHeap(), 0, 6+cbResource*2 );
60 sprintf( name, "X-%02X-", nType );
61 for(i=0; i<cbResource; i++)
63 name[5+i*2]=hex((pbResource[i]&0xf0)>>4);
64 name[6+i*2]=hex(pbResource[i]&0x0f);
67 TRACE( "Value is %s\n", name );
72 /**************************************************************************
73 * WNetCachePassword [MPR.@] Saves password in cache
76 * only the parameter count is verifyed
78 * ---- everything below this line might be wrong (js) -----
81 * Failure: WN_ACCESS_DENIED, WN_BAD_PASSWORD, WN_BADVALUE, WN_NET_ERROR,
82 * WN_NOT_SUPPORTED, WN_OUT_OF_MEMORY
84 DWORD WINAPI WNetCachePassword(
85 LPSTR pbResource, /* [in] Name of workgroup, computer, or resource */
86 WORD cbResource, /* [in] Size of name */
87 LPSTR pbPassword, /* [in] Buffer containing password */
88 WORD cbPassword, /* [in] Size of password */
89 BYTE nType, /* [in] Type of password to cache */
97 WARN( "(%p(%s), %d, %p(%s), %d, %d, 0x%08x): totally insecure\n",
98 pbResource, debugstr_a(pbResource), cbResource,
99 pbPassword, debugstr_a(pbPassword), cbPassword,
102 r = RegCreateKeyA( HKEY_CURRENT_USER, mpr_key, &hkey );
104 return WN_ACCESS_DENIED;
106 valname = MPR_GetValueName( pbResource, cbResource, nType );
109 r = RegSetValueExA( hkey, valname, 0, REG_BINARY,
110 pbPassword, cbPassword );
115 HeapFree( GetProcessHeap(), 0, valname );
118 r = WN_OUT_OF_MEMORY;
125 /*****************************************************************
126 * WNetRemoveCachedPassword [MPR.@]
128 UINT WINAPI WNetRemoveCachedPassword(
129 LPSTR pbResource, /* [in] resource ID to delete */
130 WORD cbResource, /* [in] number of bytes in the resource ID */
131 BYTE nType ) /* [in] Type of the resource to delete */
137 WARN( "(%p(%s), %d, %d): totally insecure\n",
138 pbResource, debugstr_a(pbResource), cbResource, nType );
140 r = RegCreateKeyA( HKEY_CURRENT_USER, mpr_key, &hkey );
142 return WN_ACCESS_DENIED;
144 valname = MPR_GetValueName( pbResource, cbResource, nType );
147 r = RegDeleteValueA( hkey, valname );
149 r = WN_ACCESS_DENIED;
152 HeapFree( GetProcessHeap(), 0, valname );
155 r = WN_OUT_OF_MEMORY;
160 /*****************************************************************
161 * WNetGetCachedPassword [MPR.@] Retrieves password from cache
164 * the stub seems to be wrong:
165 * arg1: ptr 0x40xxxxxx -> (no string)
167 * arg3: ptr 0x40xxxxxx -> (no string)
168 * arg4: ptr 0x40xxxxxx -> 0xc8
171 * ---- everything below this line might be wrong (js) -----
173 * Success: WN_SUCCESS
174 * Failure: WN_ACCESS_DENIED, WN_BAD_PASSWORD, WN_BAD_VALUE,
175 * WN_NET_ERROR, WN_NOT_SUPPORTED, WN_OUT_OF_MEMORY
177 DWORD WINAPI WNetGetCachedPassword(
178 LPSTR pbResource, /* [in] Name of workgroup, computer, or resource */
179 WORD cbResource, /* [in] Size of name */
180 LPSTR pbPassword, /* [out] Buffer to receive password */
181 LPWORD pcbPassword, /* [out] Receives size of password */
182 BYTE nType) /* [in] Type of password to retrieve */
185 DWORD r, type = 0, sz;
188 WARN( "(%p(%s), %d, %p, %p, %d): totally insecure\n",
189 pbResource, debugstr_a(pbResource), cbResource,
190 pbPassword, pcbPassword, nType );
192 memset( pbPassword, 0, *pcbPassword);
194 r = RegCreateKeyA( HKEY_CURRENT_USER, mpr_key, &hkey );
196 return WN_ACCESS_DENIED;
198 valname = MPR_GetValueName( pbResource, cbResource, nType );
202 r = RegQueryValueExA( hkey, valname, 0, &type, pbPassword, &sz );
208 HeapFree( GetProcessHeap(), 0, valname );
211 r = WN_OUT_OF_MEMORY;
216 /*******************************************************************
217 * WNetEnumCachedPasswords [MPR.@]
220 * the parameter count is verifyed
222 * This function is a huge security risk, as virii and such can use
223 * it to grab all the passwords in the cache. It's bad enough to
224 * store the passwords (insecurely).
226 * bpPrefix and cbPrefix are used to filter the returned passwords
227 * the first cbPrefix bytes of the password resource identifier
228 * should match the same number of bytes in bpPrefix
231 * Success: WN_SUCCESS (even if no entries were enumerated)
232 * Failure: WN_ACCESS_DENIED, WN_BAD_PASSWORD, WN_BAD_VALUE,
233 * WN_NET_ERROR, WN_NOT_SUPPORTED, WN_OUT_OF_MEMORY
236 UINT WINAPI WNetEnumCachedPasswords(
237 LPSTR pbPrefix, /* [in] prefix to filter cache entries */
238 WORD cbPrefix, /* [in] number of bytes in Prefix substring */
239 BYTE nType, /* [in] match the Type ID of the entry */
240 ENUMPASSWORDPROC enumPasswordProc, /* [in] callback function */
241 DWORD param) /* [in] parameter passed to enum function */
244 DWORD r, type, val_sz, data_sz, i, j, size;
245 PASSWORD_CACHE_ENTRY *entry;
246 CHAR val[256], prefix[6];
248 WARN( "(%s, %d, %d, %p, 0x%08lx) totally insecure\n",
249 debugstr_an(pbPrefix,cbPrefix), cbPrefix,
250 nType, enumPasswordProc, param );
252 r = RegCreateKeyA( HKEY_CURRENT_USER, mpr_key, &hkey );
254 return WN_ACCESS_DENIED;
256 sprintf(prefix, "X-%02X-", nType );
265 r = RegEnumValueA( hkey, i, val, &val_sz, NULL, &type, NULL, &data_sz );
266 if( r != ERROR_SUCCESS )
268 if( type != REG_BINARY )
271 /* check the value is in the format we expect */
272 if( val_sz < sizeof prefix )
274 if( memcmp( prefix, val, 5 ) )
277 /* decode the value */
278 for(j=5; j<val_sz; j+=2 )
280 CHAR hi = ctox( val[j] ), lo = ctox( val[j+1] );
281 if( ( hi < 0 ) || ( lo < 0 ) )
283 val[(j-5)/2] = (hi<<4) | lo;
286 /* find the decoded length */
289 if( val_sz < cbPrefix )
292 /* check the prefix matches */
293 if( memcmp(val, pbPrefix, cbPrefix) )
296 /* read the value data */
297 size = sizeof *entry - sizeof entry->abResource[0] + val_sz + data_sz;
298 entry = HeapAlloc( GetProcessHeap(), 0, sizeof *entry + val_sz + data_sz );
299 memcpy( entry->abResource, val, val_sz );
300 entry->cbEntry = size;
301 entry->cbResource = val_sz;
302 entry->cbPassword = data_sz;
304 entry->nType = nType;
305 r = RegEnumValueA( hkey, i, NULL, &val_sz, NULL, &type,
306 &entry->abResource[val_sz], &data_sz );
307 if( r == ERROR_SUCCESS )
308 enumPasswordProc( entry, param );
309 HeapFree( GetProcessHeap(), 0, entry );