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Commit | Line | Data |
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cc754834 | 1 | /* |
321d8d57 | 2 | * "$Id$" |
cc754834 | 3 | * |
2c85b752 | 4 | * TLS support for CUPS on Windows using SSPI. |
321d8d57 | 5 | * |
2ece34a9 | 6 | * Copyright 2010-2014 by Apple Inc. |
cc754834 | 7 | * |
2c85b752 MS |
8 | * These coded instructions, statements, and computer programs are the |
9 | * property of Apple Inc. and are protected by Federal copyright | |
10 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
11 | * which should have been included with this file. If this file is | |
12 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
cc754834 | 13 | * |
2c85b752 | 14 | * This file is subject to the Apple OS-Developed Software exception. |
cc754834 MS |
15 | */ |
16 | ||
17 | /* | |
18 | * Include necessary headers... | |
19 | */ | |
20 | ||
cc754834 | 21 | #include "debug-private.h" |
321d8d57 | 22 | |
cc754834 | 23 | |
2ece34a9 MS |
24 | /* |
25 | * Include necessary libraries... | |
26 | */ | |
27 | ||
cc754834 MS |
28 | #pragma comment(lib, "Crypt32.lib") |
29 | #pragma comment(lib, "Secur32.lib") | |
30 | #pragma comment(lib, "Ws2_32.lib") | |
31 | ||
32 | ||
2ece34a9 MS |
33 | /* |
34 | * Constants... | |
35 | */ | |
36 | ||
37 | #ifndef SECURITY_FLAG_IGNORE_UNKNOWN_CA | |
cc754834 | 38 | # define SECURITY_FLAG_IGNORE_UNKNOWN_CA 0x00000100 /* Untrusted root */ |
2ece34a9 | 39 | #endif /* SECURITY_FLAG_IGNORE_UNKNOWN_CA */ |
cc754834 | 40 | |
2ece34a9 | 41 | #ifndef SECURITY_FLAG_IGNORE_CERT_DATE_INVALID |
cc754834 | 42 | # define SECURITY_FLAG_IGNORE_CERT_DATE_INVALID 0x00002000 /* Expired X509 Cert. */ |
2ece34a9 MS |
43 | #endif /* !SECURITY_FLAG_IGNORE_CERT_DATE_INVALID */ |
44 | ||
45 | /* | |
46 | * Local functions... | |
47 | */ | |
cc754834 | 48 | |
2ece34a9 MS |
49 | static _http_sspi_t *http_sspi_alloc(void); |
50 | static int http_sspi_client(http_t *http, const char *hostname); | |
9870d12b | 51 | static BOOL http_sspi_credentials(http_t *http, const LPWSTR containerName, const char *common_name, BOOL server); |
2ece34a9 | 52 | static void http_sspi_free(_http_sspi_t *conn); |
2ece34a9 MS |
53 | static int http_sspi_server(http_t *http, const char *hostname); |
54 | static void http_sspi_set_allows_any_root(_http_sspi_t *conn, BOOL allow); | |
55 | static void http_sspi_set_allows_expired_certs(_http_sspi_t *conn, BOOL allow); | |
d777d26d | 56 | static const char *http_sspi_strerror(_http_sspi_t *conn, DWORD code); |
2ece34a9 | 57 | static DWORD http_sspi_verify(PCCERT_CONTEXT cert, const char *common_name, DWORD dwCertFlags); |
cc754834 MS |
58 | |
59 | ||
2c85b752 | 60 | /* |
2ece34a9 MS |
61 | * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair. |
62 | * | |
63 | * @since CUPS 2.0@ | |
2c85b752 MS |
64 | */ |
65 | ||
2ece34a9 MS |
66 | int /* O - 1 on success, 0 on failure */ |
67 | cupsMakeServerCredentials( | |
68 | const char *path, /* I - Keychain path or @code NULL@ for default */ | |
69 | const char *common_name, /* I - Common name */ | |
70 | int num_alt_names, /* I - Number of subject alternate names */ | |
71 | const char **alt_names, /* I - Subject Alternate Names */ | |
72 | time_t expiration_date) /* I - Expiration date */ | |
2c85b752 | 73 | { |
2ece34a9 | 74 | DEBUG_printf(("cupsMakeServerCredentials(path=\"%s\", common_name=\"%s\", num_alt_names=%d, alt_names=%p, expiration_date=%d)", path, common_name, num_alt_names, alt_names, (int)expiration_date)); |
2c85b752 | 75 | |
2ece34a9 MS |
76 | (void)path; |
77 | (void)common_name; | |
78 | (void)num_alt_names; | |
79 | (void)alt_names; | |
80 | (void)expiration_date; | |
2c85b752 | 81 | |
2ece34a9 MS |
82 | return (0); |
83 | } | |
2c85b752 | 84 | |
2c85b752 | 85 | |
2ece34a9 MS |
86 | /* |
87 | * 'cupsSetServerCredentials()' - Set the default server credentials. | |
88 | * | |
89 | * Note: The server credentials are used by all threads in the running process. | |
90 | * This function is threadsafe. | |
91 | * | |
92 | * @since CUPS 2.0@ | |
93 | */ | |
2c85b752 | 94 | |
2ece34a9 MS |
95 | int /* O - 1 on success, 0 on failure */ |
96 | cupsSetServerCredentials( | |
97 | const char *path, /* I - Keychain path or @code NULL@ for default */ | |
98 | const char *common_name, /* I - Default common name for server */ | |
99 | int auto_create) /* I - 1 = automatically create self-signed certificates */ | |
100 | { | |
101 | DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create)); | |
2c85b752 | 102 | |
2ece34a9 MS |
103 | (void)path; |
104 | (void)common_name; | |
105 | (void)auto_create; | |
2c85b752 | 106 | |
2ece34a9 | 107 | return (0); |
2c85b752 MS |
108 | } |
109 | ||
110 | ||
2c85b752 | 111 | /* |
2ece34a9 MS |
112 | * 'httpCopyCredentials()' - Copy the credentials associated with the peer in |
113 | * an encrypted connection. | |
114 | * | |
115 | * @since CUPS 1.5/OS X 10.7@ | |
2c85b752 MS |
116 | */ |
117 | ||
2ece34a9 MS |
118 | int /* O - Status of call (0 = success) */ |
119 | httpCopyCredentials( | |
120 | http_t *http, /* I - Connection to server */ | |
121 | cups_array_t **credentials) /* O - Array of credentials */ | |
2c85b752 | 122 | { |
2ece34a9 | 123 | DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", http, credentials)); |
2c85b752 | 124 | |
2ece34a9 | 125 | (void)http; |
2c85b752 | 126 | |
2ece34a9 MS |
127 | if (credentials) |
128 | *credentials = NULL; | |
2c85b752 | 129 | |
2ece34a9 MS |
130 | return (-1); |
131 | } | |
2c85b752 | 132 | |
2c85b752 | 133 | |
2ece34a9 MS |
134 | /* |
135 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
136 | */ | |
2c85b752 | 137 | |
2ece34a9 MS |
138 | http_tls_credentials_t /* O - Internal credentials */ |
139 | _httpCreateCredentials( | |
140 | cups_array_t *credentials) /* I - Array of credentials */ | |
141 | { | |
142 | (void)credentials; | |
2c85b752 | 143 | |
2ece34a9 MS |
144 | return (NULL); |
145 | } | |
2c85b752 | 146 | |
2c85b752 | 147 | |
2ece34a9 MS |
148 | /* |
149 | * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name. | |
150 | * | |
151 | * @since CUPS 2.0@ | |
152 | */ | |
2c85b752 | 153 | |
2ece34a9 MS |
154 | int /* O - 1 if valid, 0 otherwise */ |
155 | httpCredentialsAreValidForName( | |
156 | cups_array_t *credentials, /* I - Credentials */ | |
157 | const char *common_name) /* I - Name to check */ | |
158 | { | |
159 | (void)credentials; | |
160 | (void)common_name; | |
2c85b752 | 161 | |
2ece34a9 | 162 | return (1); |
2c85b752 | 163 | } |
2c85b752 MS |
164 | |
165 | ||
2c85b752 | 166 | /* |
2ece34a9 MS |
167 | * 'httpCredentialsGetTrust()' - Return the trust of credentials. |
168 | * | |
169 | * @since CUPS 2.0@ | |
2c85b752 MS |
170 | */ |
171 | ||
2ece34a9 MS |
172 | http_trust_t /* O - Level of trust */ |
173 | httpCredentialsGetTrust( | |
174 | cups_array_t *credentials, /* I - Credentials */ | |
175 | const char *common_name) /* I - Common name for trust lookup */ | |
2c85b752 | 176 | { |
2ece34a9 MS |
177 | http_trust_t trust = HTTP_TRUST_OK; |
178 | /* Trusted? */ | |
179 | cups_array_t *tcreds = NULL; /* Trusted credentials */ | |
2c85b752 | 180 | _cups_globals_t *cg = _cupsGlobals(); |
2ece34a9 | 181 | /* Per-thread globals */ |
2c85b752 MS |
182 | |
183 | ||
2ece34a9 MS |
184 | if (!common_name) |
185 | return (HTTP_TRUST_UNKNOWN); | |
2c85b752 MS |
186 | |
187 | /* | |
2ece34a9 | 188 | * Look this common name up in the default keychains... |
2c85b752 MS |
189 | */ |
190 | ||
2ece34a9 | 191 | httpLoadCredentials(NULL, &tcreds, common_name); |
2c85b752 | 192 | |
2ece34a9 | 193 | if (tcreds) |
2c85b752 | 194 | { |
2ece34a9 MS |
195 | char credentials_str[1024], /* String for incoming credentials */ |
196 | tcreds_str[1024]; /* String for saved credentials */ | |
197 | ||
198 | httpCredentialsString(credentials, credentials_str, sizeof(credentials_str)); | |
199 | httpCredentialsString(tcreds, tcreds_str, sizeof(tcreds_str)); | |
2c85b752 | 200 | |
2ece34a9 | 201 | if (strcmp(credentials_str, tcreds_str)) |
2c85b752 | 202 | { |
2ece34a9 MS |
203 | /* |
204 | * Credentials don't match, let's look at the expiration date of the new | |
205 | * credentials and allow if the new ones have a later expiration... | |
206 | */ | |
2c85b752 | 207 | |
2ece34a9 MS |
208 | if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds) || |
209 | !httpCredentialsAreValidForName(credentials, common_name)) | |
210 | { | |
211 | /* | |
212 | * Either the new credentials are not newly issued, or the common name | |
213 | * does not match the issued certificate... | |
214 | */ | |
2c85b752 | 215 | |
2ece34a9 MS |
216 | trust = HTTP_TRUST_INVALID; |
217 | } | |
218 | else if (httpCredentialsGetExpiration(tcreds) < time(NULL)) | |
219 | { | |
220 | /* | |
221 | * Save the renewed credentials... | |
222 | */ | |
2c85b752 | 223 | |
2ece34a9 | 224 | trust = HTTP_TRUST_RENEWED; |
2c85b752 | 225 | |
2ece34a9 MS |
226 | httpSaveCredentials(NULL, credentials, common_name); |
227 | } | |
228 | } | |
2c85b752 | 229 | |
2ece34a9 | 230 | httpFreeCredentials(tcreds); |
2c85b752 | 231 | } |
2ece34a9 MS |
232 | else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name)) |
233 | trust = HTTP_TRUST_INVALID; | |
2c85b752 | 234 | |
2ece34a9 MS |
235 | if (!cg->expired_certs && time(NULL) > httpCredentialsGetExpiration(credentials)) |
236 | trust = HTTP_TRUST_EXPIRED; | |
237 | else if (!cg->any_root && cupsArrayCount(credentials) == 1) | |
238 | trust = HTTP_TRUST_INVALID; | |
2c85b752 | 239 | |
2ece34a9 MS |
240 | return (trust); |
241 | } | |
2c85b752 | 242 | |
2c85b752 | 243 | |
2ece34a9 MS |
244 | /* |
245 | * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials. | |
246 | * | |
247 | * @since CUPS 2.0@ | |
248 | */ | |
2c85b752 | 249 | |
2ece34a9 MS |
250 | time_t /* O - Expiration date of credentials */ |
251 | httpCredentialsGetExpiration( | |
252 | cups_array_t *credentials) /* I - Credentials */ | |
253 | { | |
254 | (void)credentials; | |
2c85b752 | 255 | |
2ece34a9 MS |
256 | return (INT_MAX); |
257 | } | |
2c85b752 | 258 | |
2c85b752 | 259 | |
2ece34a9 MS |
260 | /* |
261 | * 'httpCredentialsString()' - Return a string representing the credentials. | |
262 | * | |
263 | * @since CUPS 2.0@ | |
264 | */ | |
2c85b752 | 265 | |
2ece34a9 MS |
266 | size_t /* O - Total size of credentials string */ |
267 | httpCredentialsString( | |
268 | cups_array_t *credentials, /* I - Credentials */ | |
269 | char *buffer, /* I - Buffer or @code NULL@ */ | |
270 | size_t bufsize) /* I - Size of buffer */ | |
271 | { | |
272 | DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", credentials, buffer, CUPS_LLCAST bufsize)); | |
2c85b752 | 273 | |
2ece34a9 MS |
274 | if (!buffer) |
275 | return (0); | |
2c85b752 | 276 | |
2ece34a9 MS |
277 | if (buffer && bufsize > 0) |
278 | *buffer = '\0'; | |
2c85b752 | 279 | |
2ece34a9 MS |
280 | #if 0 |
281 | http_credential_t *first; /* First certificate */ | |
282 | SecCertificateRef secCert; /* Certificate reference */ | |
2c85b752 | 283 | |
2c85b752 | 284 | |
2ece34a9 MS |
285 | if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL && |
286 | (secCert = http_cdsa_create_credential(first)) != NULL) | |
2c85b752 | 287 | { |
2ece34a9 MS |
288 | CFStringRef cf_name; /* CF common name string */ |
289 | char name[256]; /* Common name associated with cert */ | |
290 | time_t expiration; /* Expiration date of cert */ | |
291 | _cups_md5_state_t md5_state; /* MD5 state */ | |
292 | unsigned char md5_digest[16]; /* MD5 result */ | |
2c85b752 | 293 | |
2ece34a9 | 294 | if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL) |
2c85b752 | 295 | { |
2ece34a9 MS |
296 | CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8); |
297 | CFRelease(cf_name); | |
2c85b752 MS |
298 | } |
299 | else | |
2ece34a9 | 300 | strlcpy(name, "unknown", sizeof(name)); |
2c85b752 | 301 | |
2ece34a9 | 302 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); |
2c85b752 | 303 | |
2ece34a9 MS |
304 | _cupsMD5Init(&md5_state); |
305 | _cupsMD5Append(&md5_state, first->data, (int)first->datalen); | |
306 | _cupsMD5Finish(&md5_state, md5_digest); | |
2c85b752 | 307 | |
2ece34a9 | 308 | snprintf(buffer, bufsize, "%s / %s / %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", name, httpGetDateString(expiration), md5_digest[0], md5_digest[1], md5_digest[2], md5_digest[3], md5_digest[4], md5_digest[5], md5_digest[6], md5_digest[7], md5_digest[8], md5_digest[9], md5_digest[10], md5_digest[11], md5_digest[12], md5_digest[13], md5_digest[14], md5_digest[15]); |
2c85b752 | 309 | |
2ece34a9 | 310 | CFRelease(secCert); |
2c85b752 | 311 | } |
2ece34a9 | 312 | #endif /* 0 */ |
2c85b752 | 313 | |
2ece34a9 | 314 | DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer)); |
2c85b752 | 315 | |
2ece34a9 MS |
316 | return (strlen(buffer)); |
317 | } | |
2c85b752 | 318 | |
2c85b752 | 319 | |
2ece34a9 MS |
320 | /* |
321 | * '_httpFreeCredentials()' - Free internal credentials. | |
322 | */ | |
2c85b752 | 323 | |
2ece34a9 MS |
324 | void |
325 | _httpFreeCredentials( | |
326 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
327 | { | |
328 | if (!credentials) | |
329 | return; | |
330 | } | |
2c85b752 | 331 | |
2c85b752 | 332 | |
2ece34a9 MS |
333 | /* |
334 | * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file. | |
335 | * | |
336 | * @since CUPS 2.0@ | |
337 | */ | |
2c85b752 | 338 | |
2ece34a9 MS |
339 | int /* O - 0 on success, -1 on error */ |
340 | httpLoadCredentials( | |
341 | const char *path, /* I - Keychain path or @code NULL@ for default */ | |
342 | cups_array_t **credentials, /* IO - Credentials */ | |
343 | const char *common_name) /* I - Common name for credentials */ | |
344 | { | |
345 | DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name)); | |
2c85b752 | 346 | |
2ece34a9 MS |
347 | (void)path; |
348 | (void)common_name; | |
2c85b752 | 349 | |
2ece34a9 MS |
350 | if (credentials) |
351 | *credentials = NULL; | |
2c85b752 | 352 | |
2ece34a9 | 353 | DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1)); |
2c85b752 | 354 | |
2ece34a9 MS |
355 | return (*credentials ? 0 : -1); |
356 | } | |
2c85b752 | 357 | |
2c85b752 | 358 | |
2ece34a9 MS |
359 | /* |
360 | * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file. | |
361 | * | |
362 | * @since CUPS 2.0@ | |
363 | */ | |
2c85b752 | 364 | |
2ece34a9 MS |
365 | int /* O - -1 on error, 0 on success */ |
366 | httpSaveCredentials( | |
367 | const char *path, /* I - Keychain path or @code NULL@ for default */ | |
368 | cups_array_t *credentials, /* I - Credentials */ | |
369 | const char *common_name) /* I - Common name for credentials */ | |
370 | { | |
371 | DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name)); | |
2c85b752 | 372 | |
2ece34a9 MS |
373 | (void)path; |
374 | (void)credentials; | |
375 | (void)common_name; | |
2c85b752 | 376 | |
2ece34a9 MS |
377 | DEBUG_printf(("1httpSaveCredentials: Returning %d.", -1)); |
378 | return (-1); | |
2c85b752 MS |
379 | } |
380 | ||
381 | ||
382 | /* | |
2ece34a9 | 383 | * '_httpTLSInitialize()' - Initialize the TLS stack. |
2c85b752 MS |
384 | */ |
385 | ||
2ece34a9 MS |
386 | void |
387 | _httpTLSInitialize(void) | |
2c85b752 | 388 | { |
2ece34a9 MS |
389 | /* |
390 | * Nothing to do... | |
391 | */ | |
392 | } | |
2c85b752 | 393 | |
2c85b752 | 394 | |
2ece34a9 MS |
395 | /* |
396 | * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes. | |
397 | */ | |
2c85b752 | 398 | |
2ece34a9 MS |
399 | size_t /* O - Bytes available */ |
400 | _httpTLSPending(http_t *http) /* I - HTTP connection */ | |
401 | { | |
402 | if (http->tls) | |
403 | return (http->tls->readBufferUsed); | |
404 | else | |
405 | return (0); | |
406 | } | |
2c85b752 | 407 | |
2c85b752 | 408 | |
2ece34a9 MS |
409 | /* |
410 | * '_httpTLSRead()' - Read from a SSL/TLS connection. | |
411 | */ | |
2c85b752 | 412 | |
2ece34a9 MS |
413 | int /* O - Bytes read */ |
414 | _httpTLSRead(http_t *http, /* I - HTTP connection */ | |
415 | char *buf, /* I - Buffer to store data */ | |
416 | int len) /* I - Length of buffer */ | |
417 | { | |
418 | int i; /* Looping var */ | |
419 | _http_sspi_t *conn = http->tls; /* SSPI data */ | |
420 | SecBufferDesc message; /* Array of SecBuffer struct */ | |
421 | SecBuffer buffers[4] = { 0 }; /* Security package buffer */ | |
422 | int num = 0; /* Return value */ | |
423 | PSecBuffer pDataBuffer; /* Data buffer */ | |
424 | PSecBuffer pExtraBuffer; /* Excess data buffer */ | |
425 | SECURITY_STATUS scRet; /* SSPI status */ | |
2c85b752 | 426 | |
2c85b752 | 427 | |
195c1f2d MS |
428 | DEBUG_printf(("4_httpTLSRead(http=%p, buf=%p, len=%d)", http, buf, len)); |
429 | ||
2ece34a9 MS |
430 | if (!conn) |
431 | { | |
195c1f2d | 432 | DEBUG_puts("5_httpTLSRead: No TLS context, returning -1."); |
2ece34a9 MS |
433 | WSASetLastError(WSAEINVAL); |
434 | return (-1); | |
435 | } | |
2c85b752 | 436 | |
2ece34a9 MS |
437 | /* |
438 | * If there are bytes that have already been decrypted and have not yet been | |
439 | * read, return those... | |
440 | */ | |
2c85b752 | 441 | |
2ece34a9 MS |
442 | if (conn->readBufferUsed > 0) |
443 | { | |
444 | int bytesToCopy = min(conn->readBufferUsed, len); | |
445 | /* Number of bytes to copy */ | |
2c85b752 | 446 | |
2ece34a9 MS |
447 | memcpy(buf, conn->readBuffer, bytesToCopy); |
448 | conn->readBufferUsed -= bytesToCopy; | |
2c85b752 | 449 | |
2ece34a9 MS |
450 | if (conn->readBufferUsed > 0) |
451 | memmove(conn->readBuffer, conn->readBuffer + bytesToCopy, conn->readBufferUsed); | |
2c85b752 | 452 | |
195c1f2d MS |
453 | DEBUG_printf(("5_httpTLSRead: Returning %d bytes previously decrypted.", bytesToCopy)); |
454 | ||
2ece34a9 MS |
455 | return (bytesToCopy); |
456 | } | |
2c85b752 | 457 | |
2ece34a9 MS |
458 | /* |
459 | * Initialize security buffer structs | |
460 | */ | |
2c85b752 | 461 | |
2ece34a9 | 462 | message.ulVersion = SECBUFFER_VERSION; |
195c1f2d MS |
463 | message.cBuffers = 4; |
464 | message.pBuffers = buffers; | |
2c85b752 | 465 | |
2ece34a9 | 466 | do |
2c85b752 MS |
467 | { |
468 | /* | |
2ece34a9 | 469 | * If there is not enough space in the buffer, then increase its size... |
2c85b752 MS |
470 | */ |
471 | ||
2ece34a9 | 472 | if (conn->decryptBufferLength <= conn->decryptBufferUsed) |
2c85b752 | 473 | { |
2ece34a9 | 474 | BYTE *temp; /* New buffer */ |
2c85b752 | 475 | |
2ece34a9 MS |
476 | if (conn->decryptBufferLength >= 262144) |
477 | { | |
478 | WSASetLastError(E_OUTOFMEMORY); | |
479 | DEBUG_puts("_httpTLSRead: Decryption buffer too large (>256k)"); | |
480 | return (-1); | |
481 | } | |
2c85b752 | 482 | |
2ece34a9 MS |
483 | if ((temp = realloc(conn->decryptBuffer, conn->decryptBufferLength + 4096)) == NULL) |
484 | { | |
195c1f2d | 485 | DEBUG_printf(("_httpTLSRead: Unable to allocate %d byte decryption buffer.", conn->decryptBufferLength + 4096)); |
2ece34a9 MS |
486 | WSASetLastError(E_OUTOFMEMORY); |
487 | return (-1); | |
488 | } | |
2c85b752 | 489 | |
2ece34a9 MS |
490 | conn->decryptBufferLength += 4096; |
491 | conn->decryptBuffer = temp; | |
195c1f2d MS |
492 | |
493 | DEBUG_printf(("_httpTLSRead: Resized decryption buffer to %d bytes.", conn->decryptBufferLength)); | |
2ece34a9 | 494 | } |
2c85b752 | 495 | |
2ece34a9 | 496 | buffers[0].pvBuffer = conn->decryptBuffer; |
195c1f2d | 497 | buffers[0].cbBuffer = (unsigned long)conn->decryptBufferUsed; |
2ece34a9 MS |
498 | buffers[0].BufferType = SECBUFFER_DATA; |
499 | buffers[1].BufferType = SECBUFFER_EMPTY; | |
500 | buffers[2].BufferType = SECBUFFER_EMPTY; | |
501 | buffers[3].BufferType = SECBUFFER_EMPTY; | |
2c85b752 | 502 | |
195c1f2d MS |
503 | DEBUG_printf(("5_httpTLSRead: decryptBufferUsed=%d", conn->decryptBufferUsed)); |
504 | ||
2ece34a9 | 505 | scRet = DecryptMessage(&conn->context, &message, 0, NULL); |
2c85b752 | 506 | |
2ece34a9 MS |
507 | if (scRet == SEC_E_INCOMPLETE_MESSAGE) |
508 | { | |
509 | num = recv(http->fd, conn->decryptBuffer + conn->decryptBufferUsed, (int)(conn->decryptBufferLength - conn->decryptBufferUsed), 0); | |
510 | if (num < 0) | |
511 | { | |
195c1f2d | 512 | DEBUG_printf(("5_httpTLSRead: recv failed: %d", WSAGetLastError())); |
2ece34a9 MS |
513 | return (-1); |
514 | } | |
515 | else if (num == 0) | |
516 | { | |
195c1f2d | 517 | DEBUG_puts("5_httpTLSRead: Server disconnected."); |
2ece34a9 MS |
518 | return (0); |
519 | } | |
2c85b752 | 520 | |
195c1f2d MS |
521 | DEBUG_printf(("5_httpTLSRead: Read %d bytes into decryption buffer.", num)); |
522 | ||
2ece34a9 MS |
523 | conn->decryptBufferUsed += num; |
524 | } | |
2c85b752 | 525 | } |
2ece34a9 | 526 | while (scRet == SEC_E_INCOMPLETE_MESSAGE); |
2c85b752 | 527 | |
2ece34a9 MS |
528 | if (scRet == SEC_I_CONTEXT_EXPIRED) |
529 | { | |
195c1f2d | 530 | DEBUG_puts("5_httpTLSRead: Context expired."); |
2ece34a9 MS |
531 | WSASetLastError(WSAECONNRESET); |
532 | return (-1); | |
533 | } | |
534 | else if (scRet != SEC_E_OK) | |
535 | { | |
d777d26d | 536 | DEBUG_printf(("5_httpTLSRead: DecryptMessage failed: %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 MS |
537 | WSASetLastError(WSASYSCALLFAILURE); |
538 | return (-1); | |
539 | } | |
2c85b752 | 540 | |
2ece34a9 MS |
541 | /* |
542 | * The decryption worked. Now, locate data buffer. | |
543 | */ | |
2c85b752 | 544 | |
2ece34a9 MS |
545 | pDataBuffer = NULL; |
546 | pExtraBuffer = NULL; | |
2c85b752 | 547 | |
2ece34a9 MS |
548 | for (i = 1; i < 4; i++) |
549 | { | |
550 | if (buffers[i].BufferType == SECBUFFER_DATA) | |
551 | pDataBuffer = &buffers[i]; | |
552 | else if (!pExtraBuffer && (buffers[i].BufferType == SECBUFFER_EXTRA)) | |
553 | pExtraBuffer = &buffers[i]; | |
554 | } | |
2c85b752 | 555 | |
2ece34a9 MS |
556 | /* |
557 | * If a data buffer is found, then copy the decrypted bytes to the passed-in | |
558 | * buffer... | |
559 | */ | |
2c85b752 | 560 | |
2ece34a9 MS |
561 | if (pDataBuffer) |
562 | { | |
33c9220c | 563 | int bytesToCopy = min((int)pDataBuffer->cbBuffer, len); |
2ece34a9 MS |
564 | /* Number of bytes to copy into buf */ |
565 | int bytesToSave = pDataBuffer->cbBuffer - bytesToCopy; | |
566 | /* Number of bytes to save in our read buffer */ | |
2c85b752 | 567 | |
2ece34a9 MS |
568 | if (bytesToCopy) |
569 | memcpy(buf, pDataBuffer->pvBuffer, bytesToCopy); | |
2c85b752 | 570 | |
2c85b752 | 571 | /* |
2ece34a9 MS |
572 | * If there are more decrypted bytes than can be copied to the passed in |
573 | * buffer, then save them... | |
2c85b752 MS |
574 | */ |
575 | ||
2ece34a9 | 576 | if (bytesToSave) |
2c85b752 | 577 | { |
2ece34a9 MS |
578 | if ((conn->readBufferLength - conn->readBufferUsed) < bytesToSave) |
579 | { | |
580 | BYTE *temp; /* New buffer pointer */ | |
2c85b752 | 581 | |
2ece34a9 MS |
582 | if ((temp = realloc(conn->readBuffer, conn->readBufferUsed + bytesToSave)) == NULL) |
583 | { | |
584 | DEBUG_printf(("_httpTLSRead: Unable to allocate %d bytes.", conn->readBufferUsed + bytesToSave)); | |
585 | WSASetLastError(E_OUTOFMEMORY); | |
586 | return (-1); | |
587 | } | |
2c85b752 | 588 | |
2ece34a9 MS |
589 | conn->readBufferLength = conn->readBufferUsed + bytesToSave; |
590 | conn->readBuffer = temp; | |
591 | } | |
2c85b752 | 592 | |
2ece34a9 | 593 | memcpy(((BYTE *)conn->readBuffer) + conn->readBufferUsed, ((BYTE *)pDataBuffer->pvBuffer) + bytesToCopy, bytesToSave); |
2c85b752 | 594 | |
2ece34a9 MS |
595 | conn->readBufferUsed += bytesToSave; |
596 | } | |
2c85b752 | 597 | |
2ece34a9 MS |
598 | return (bytesToCopy); |
599 | } | |
600 | else | |
601 | { | |
33c9220c | 602 | DEBUG_puts("_httpTLSRead: Unable to find data buffer."); |
2ece34a9 MS |
603 | WSASetLastError(WSASYSCALLFAILURE); |
604 | return (-1); | |
605 | } | |
2c85b752 | 606 | |
2ece34a9 MS |
607 | /* |
608 | * If the decryption process left extra bytes, then save those back in | |
609 | * decryptBuffer. They will be processed the next time through the loop. | |
610 | */ | |
2c85b752 | 611 | |
2ece34a9 | 612 | if (pExtraBuffer) |
2c85b752 | 613 | { |
2ece34a9 MS |
614 | memmove(conn->decryptBuffer, pExtraBuffer->pvBuffer, pExtraBuffer->cbBuffer); |
615 | conn->decryptBufferUsed = pExtraBuffer->cbBuffer; | |
616 | } | |
617 | else | |
618 | { | |
619 | conn->decryptBufferUsed = 0; | |
2c85b752 | 620 | } |
2c85b752 | 621 | |
2ece34a9 | 622 | return (0); |
2c85b752 | 623 | } |
2c85b752 MS |
624 | |
625 | ||
cc754834 | 626 | /* |
2ece34a9 | 627 | * '_httpTLSStart()' - Set up SSL/TLS support on a connection. |
cc754834 | 628 | */ |
2ece34a9 MS |
629 | |
630 | int /* O - 0 on success, -1 on failure */ | |
631 | _httpTLSStart(http_t *http) /* I - HTTP connection */ | |
cc754834 | 632 | { |
2ece34a9 MS |
633 | char hostname[256], /* Hostname */ |
634 | *hostptr; /* Pointer into hostname */ | |
cc754834 | 635 | |
cc754834 | 636 | |
2ece34a9 MS |
637 | DEBUG_printf(("7_httpTLSStart(http=%p)", http)); |
638 | ||
639 | if ((http->tls = http_sspi_alloc()) == NULL) | |
640 | return (-1); | |
cc754834 | 641 | |
2ece34a9 MS |
642 | if (http->mode == _HTTP_MODE_CLIENT) |
643 | { | |
644 | /* | |
645 | * Client: determine hostname... | |
646 | */ | |
cc754834 | 647 | |
2ece34a9 MS |
648 | if (httpAddrLocalhost(http->hostaddr)) |
649 | { | |
650 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
651 | } | |
652 | else | |
653 | { | |
654 | /* | |
655 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
656 | */ | |
cc754834 | 657 | |
2ece34a9 MS |
658 | strlcpy(hostname, http->hostname, sizeof(hostname)); |
659 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
660 | *hostptr == '.') | |
661 | *hostptr = '\0'; | |
662 | } | |
cc754834 | 663 | |
2ece34a9 MS |
664 | return (http_sspi_client(http, hostname)); |
665 | } | |
666 | else | |
cc754834 | 667 | { |
2ece34a9 MS |
668 | /* |
669 | * Server: determine hostname to use... | |
670 | */ | |
671 | ||
672 | if (http->fields[HTTP_FIELD_HOST][0]) | |
cc754834 | 673 | { |
2ece34a9 MS |
674 | /* |
675 | * Use hostname for TLS upgrade... | |
676 | */ | |
677 | ||
678 | strlcpy(hostname, http->fields[HTTP_FIELD_HOST], sizeof(hostname)); | |
679 | } | |
680 | else | |
681 | { | |
682 | /* | |
683 | * Resolve hostname from connection address... | |
684 | */ | |
685 | ||
686 | http_addr_t addr; /* Connection address */ | |
687 | socklen_t addrlen; /* Length of address */ | |
688 | ||
689 | addrlen = sizeof(addr); | |
690 | if (getsockname(http->fd, (struct sockaddr *)&addr, &addrlen)) | |
cc754834 | 691 | { |
2ece34a9 MS |
692 | DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno))); |
693 | hostname[0] = '\0'; | |
694 | } | |
695 | else if (httpAddrLocalhost(&addr)) | |
696 | hostname[0] = '\0'; | |
697 | else | |
698 | { | |
699 | httpAddrLookup(&addr, hostname, sizeof(hostname)); | |
700 | DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname)); | |
cc754834 MS |
701 | } |
702 | } | |
cc754834 | 703 | |
2ece34a9 | 704 | return (http_sspi_server(http, hostname)); |
cc754834 | 705 | } |
2ece34a9 | 706 | } |
cc754834 | 707 | |
321d8d57 | 708 | |
2ece34a9 MS |
709 | /* |
710 | * '_httpTLSStop()' - Shut down SSL/TLS on a connection. | |
711 | */ | |
cc754834 | 712 | |
2ece34a9 MS |
713 | void |
714 | _httpTLSStop(http_t *http) /* I - HTTP connection */ | |
715 | { | |
716 | _http_sspi_t *conn = http->tls; /* SSPI data */ | |
cc754834 | 717 | |
cc754834 | 718 | |
2ece34a9 | 719 | if (conn->contextInitialized && http->fd >= 0) |
cc754834 | 720 | { |
2ece34a9 MS |
721 | SecBufferDesc message; /* Array of SecBuffer struct */ |
722 | SecBuffer buffers[1] = { 0 }; | |
723 | /* Security package buffer */ | |
724 | DWORD dwType; /* Type */ | |
725 | DWORD status; /* Status */ | |
cc754834 | 726 | |
2ece34a9 MS |
727 | /* |
728 | * Notify schannel that we are about to close the connection. | |
729 | */ | |
cc754834 | 730 | |
2ece34a9 | 731 | dwType = SCHANNEL_SHUTDOWN; |
321d8d57 | 732 | |
2ece34a9 MS |
733 | buffers[0].pvBuffer = &dwType; |
734 | buffers[0].BufferType = SECBUFFER_TOKEN; | |
735 | buffers[0].cbBuffer = sizeof(dwType); | |
cc754834 | 736 | |
2ece34a9 MS |
737 | message.cBuffers = 1; |
738 | message.pBuffers = buffers; | |
739 | message.ulVersion = SECBUFFER_VERSION; | |
cc754834 | 740 | |
2ece34a9 | 741 | status = ApplyControlToken(&conn->context, &message); |
cc754834 | 742 | |
2ece34a9 MS |
743 | if (SUCCEEDED(status)) |
744 | { | |
745 | PBYTE pbMessage; /* Message buffer */ | |
746 | DWORD cbMessage; /* Message buffer count */ | |
747 | DWORD cbData; /* Data count */ | |
748 | DWORD dwSSPIFlags; /* SSL attributes we requested */ | |
749 | DWORD dwSSPIOutFlags; /* SSL attributes we received */ | |
750 | TimeStamp tsExpiry; /* Time stamp */ | |
cc754834 | 751 | |
2ece34a9 MS |
752 | dwSSPIFlags = ASC_REQ_SEQUENCE_DETECT | |
753 | ASC_REQ_REPLAY_DETECT | | |
754 | ASC_REQ_CONFIDENTIALITY | | |
755 | ASC_REQ_EXTENDED_ERROR | | |
756 | ASC_REQ_ALLOCATE_MEMORY | | |
757 | ASC_REQ_STREAM; | |
321d8d57 | 758 | |
2ece34a9 MS |
759 | buffers[0].pvBuffer = NULL; |
760 | buffers[0].BufferType = SECBUFFER_TOKEN; | |
761 | buffers[0].cbBuffer = 0; | |
cc754834 | 762 | |
2ece34a9 MS |
763 | message.cBuffers = 1; |
764 | message.pBuffers = buffers; | |
765 | message.ulVersion = SECBUFFER_VERSION; | |
766 | ||
767 | status = AcceptSecurityContext(&conn->creds, &conn->context, NULL, | |
768 | dwSSPIFlags, SECURITY_NATIVE_DREP, NULL, | |
769 | &message, &dwSSPIOutFlags, &tsExpiry); | |
770 | ||
771 | if (SUCCEEDED(status)) | |
772 | { | |
773 | pbMessage = buffers[0].pvBuffer; | |
774 | cbMessage = buffers[0].cbBuffer; | |
775 | ||
776 | /* | |
777 | * Send the close notify message to the client. | |
778 | */ | |
779 | ||
780 | if (pbMessage && cbMessage) | |
781 | { | |
782 | cbData = send(http->fd, pbMessage, cbMessage, 0); | |
783 | if ((cbData == SOCKET_ERROR) || (cbData == 0)) | |
784 | { | |
785 | status = WSAGetLastError(); | |
786 | DEBUG_printf(("_httpTLSStop: sending close notify failed: %d", status)); | |
787 | } | |
788 | else | |
789 | { | |
790 | FreeContextBuffer(pbMessage); | |
791 | } | |
792 | } | |
793 | } | |
794 | else | |
795 | { | |
d777d26d | 796 | DEBUG_printf(("_httpTLSStop: AcceptSecurityContext failed: %s", http_sspi_strerror(conn, status))); |
2ece34a9 MS |
797 | } |
798 | } | |
799 | else | |
800 | { | |
d777d26d | 801 | DEBUG_printf(("_httpTLSStop: ApplyControlToken failed: %s", http_sspi_strerror(conn, status))); |
cc754834 | 802 | } |
2ece34a9 | 803 | } |
cc754834 | 804 | |
2ece34a9 | 805 | http_sspi_free(conn); |
cc754834 | 806 | |
2ece34a9 MS |
807 | http->tls = NULL; |
808 | } | |
809 | ||
810 | ||
811 | /* | |
812 | * '_httpTLSWrite()' - Write to a SSL/TLS connection. | |
813 | */ | |
814 | ||
815 | int /* O - Bytes written */ | |
816 | _httpTLSWrite(http_t *http, /* I - HTTP connection */ | |
817 | const char *buf, /* I - Buffer holding data */ | |
818 | int len) /* I - Length of buffer */ | |
819 | { | |
820 | _http_sspi_t *conn = http->tls; /* SSPI data */ | |
821 | SecBufferDesc message; /* Array of SecBuffer struct */ | |
822 | SecBuffer buffers[4] = { 0 }; /* Security package buffer */ | |
823 | int bufferLen; /* Buffer length */ | |
824 | int bytesLeft; /* Bytes left to write */ | |
825 | const char *bufptr; /* Pointer into buffer */ | |
826 | int num = 0; /* Return value */ | |
827 | ||
828 | ||
829 | bufferLen = conn->streamSizes.cbMaximumMessage + conn->streamSizes.cbHeader + conn->streamSizes.cbTrailer; | |
830 | ||
33c9220c | 831 | if (bufferLen > conn->writeBufferLength) |
2ece34a9 MS |
832 | { |
833 | BYTE *temp; /* New buffer pointer */ | |
834 | ||
835 | if ((temp = (BYTE *)realloc(conn->writeBuffer, bufferLen)) == NULL) | |
cc754834 | 836 | { |
2ece34a9 MS |
837 | DEBUG_printf(("_httpTLSWrite: Unable to allocate buffer of %d bytes.", bufferLen)); |
838 | WSASetLastError(E_OUTOFMEMORY); | |
839 | return (-1); | |
cc754834 | 840 | } |
2ece34a9 | 841 | |
33c9220c MS |
842 | conn->writeBuffer = temp; |
843 | conn->writeBufferLength = bufferLen; | |
cc754834 MS |
844 | } |
845 | ||
2ece34a9 MS |
846 | bytesLeft = len; |
847 | bufptr = buf; | |
cc754834 | 848 | |
2ece34a9 MS |
849 | while (bytesLeft) |
850 | { | |
33c9220c | 851 | int chunk = min((int)conn->streamSizes.cbMaximumMessage, bytesLeft); |
2ece34a9 MS |
852 | /* Size of data to write */ |
853 | SECURITY_STATUS scRet; /* SSPI status */ | |
854 | ||
855 | /* | |
856 | * Copy user data into the buffer, starting just past the header... | |
857 | */ | |
858 | ||
859 | memcpy(conn->writeBuffer + conn->streamSizes.cbHeader, bufptr, chunk); | |
860 | ||
861 | /* | |
862 | * Setup the SSPI buffers | |
863 | */ | |
864 | ||
865 | message.ulVersion = SECBUFFER_VERSION; | |
866 | message.cBuffers = 4; | |
867 | message.pBuffers = buffers; | |
868 | ||
869 | buffers[0].pvBuffer = conn->writeBuffer; | |
870 | buffers[0].cbBuffer = conn->streamSizes.cbHeader; | |
871 | buffers[0].BufferType = SECBUFFER_STREAM_HEADER; | |
872 | buffers[1].pvBuffer = conn->writeBuffer + conn->streamSizes.cbHeader; | |
873 | buffers[1].cbBuffer = (unsigned long) chunk; | |
874 | buffers[1].BufferType = SECBUFFER_DATA; | |
875 | buffers[2].pvBuffer = conn->writeBuffer + conn->streamSizes.cbHeader + chunk; | |
876 | buffers[2].cbBuffer = conn->streamSizes.cbTrailer; | |
877 | buffers[2].BufferType = SECBUFFER_STREAM_TRAILER; | |
878 | buffers[3].BufferType = SECBUFFER_EMPTY; | |
879 | ||
880 | /* | |
881 | * Encrypt the data | |
882 | */ | |
883 | ||
884 | scRet = EncryptMessage(&conn->context, 0, &message, 0); | |
885 | ||
886 | if (FAILED(scRet)) | |
887 | { | |
d777d26d | 888 | DEBUG_printf(("_httpTLSWrite: EncryptMessage failed: %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 MS |
889 | WSASetLastError(WSASYSCALLFAILURE); |
890 | return (-1); | |
891 | } | |
892 | ||
893 | /* | |
894 | * Send the data. Remember the size of the total data to send is the size | |
895 | * of the header, the size of the data the caller passed in and the size | |
896 | * of the trailer... | |
897 | */ | |
898 | ||
899 | num = send(http->fd, conn->writeBuffer, buffers[0].cbBuffer + buffers[1].cbBuffer + buffers[2].cbBuffer, 0); | |
900 | ||
901 | if (num <= 0) | |
902 | { | |
903 | DEBUG_printf(("_httpTLSWrite: send failed: %ld", WSAGetLastError())); | |
904 | return (num); | |
905 | } | |
906 | ||
907 | bytesLeft -= chunk; | |
908 | bufptr += chunk; | |
909 | } | |
910 | ||
911 | return (len); | |
912 | } | |
913 | ||
914 | ||
33c9220c | 915 | #if 0 |
2ece34a9 MS |
916 | /* |
917 | * 'http_setup_ssl()' - Set up SSL/TLS support on a connection. | |
918 | */ | |
919 | ||
920 | static int /* O - 0 on success, -1 on failure */ | |
921 | http_setup_ssl(http_t *http) /* I - Connection to server */ | |
922 | { | |
923 | char hostname[256], /* Hostname */ | |
924 | *hostptr; /* Pointer into hostname */ | |
925 | ||
926 | TCHAR username[256]; /* Username returned from GetUserName() */ | |
927 | TCHAR commonName[256];/* Common name for certificate */ | |
928 | DWORD dwSize; /* 32 bit size */ | |
cc754834 | 929 | |
2ece34a9 MS |
930 | |
931 | DEBUG_printf(("7http_setup_ssl(http=%p)", http)); | |
cc754834 MS |
932 | |
933 | /* | |
2ece34a9 | 934 | * Get the hostname to use for SSL... |
cc754834 | 935 | */ |
2ece34a9 MS |
936 | |
937 | if (httpAddrLocalhost(http->hostaddr)) | |
cc754834 | 938 | { |
2ece34a9 | 939 | strlcpy(hostname, "localhost", sizeof(hostname)); |
cc754834 | 940 | } |
2ece34a9 MS |
941 | else |
942 | { | |
943 | /* | |
944 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
945 | */ | |
cc754834 | 946 | |
2ece34a9 MS |
947 | strlcpy(hostname, http->hostname, sizeof(hostname)); |
948 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
949 | *hostptr == '.') | |
950 | *hostptr = '\0'; | |
951 | } | |
cc754834 | 952 | |
33c9220c | 953 | http->tls = http_sspi_alloc(); |
cc754834 | 954 | |
2ece34a9 MS |
955 | if (!http->tls) |
956 | { | |
957 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
958 | return (-1); | |
959 | } | |
cc754834 | 960 | |
2ece34a9 MS |
961 | dwSize = sizeof(username) / sizeof(TCHAR); |
962 | GetUserName(username, &dwSize); | |
963 | _sntprintf_s(commonName, sizeof(commonName) / sizeof(TCHAR), | |
964 | sizeof(commonName) / sizeof(TCHAR), TEXT("CN=%s"), username); | |
cc754834 | 965 | |
2ece34a9 MS |
966 | if (!_sspiGetCredentials(http->tls, L"ClientContainer", |
967 | commonName, FALSE)) | |
968 | { | |
969 | _sspiFree(http->tls); | |
970 | http->tls = NULL; | |
cc754834 | 971 | |
2ece34a9 MS |
972 | http->error = EIO; |
973 | http->status = HTTP_STATUS_ERROR; | |
cc754834 | 974 | |
2ece34a9 MS |
975 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, |
976 | _("Unable to establish a secure connection to host."), 1); | |
cc754834 | 977 | |
2ece34a9 MS |
978 | return (-1); |
979 | } | |
980 | ||
981 | _sspiSetAllowsAnyRoot(http->tls, TRUE); | |
982 | _sspiSetAllowsExpiredCerts(http->tls, TRUE); | |
983 | ||
984 | if (!_sspiConnect(http->tls, hostname)) | |
985 | { | |
986 | _sspiFree(http->tls); | |
987 | http->tls = NULL; | |
988 | ||
989 | http->error = EIO; | |
990 | http->status = HTTP_STATUS_ERROR; | |
991 | ||
992 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, | |
993 | _("Unable to establish a secure connection to host."), 1); | |
994 | ||
995 | return (-1); | |
996 | } | |
997 | ||
998 | return (0); | |
cc754834 | 999 | } |
33c9220c | 1000 | #endif // 0 |
cc754834 MS |
1001 | |
1002 | ||
1003 | /* | |
2ece34a9 | 1004 | * 'http_sspi_alloc()' - Allocate SSPI object. |
cc754834 | 1005 | */ |
2ece34a9 MS |
1006 | |
1007 | static _http_sspi_t * /* O - New SSPI/SSL object */ | |
1008 | http_sspi_alloc(void) | |
1009 | { | |
1010 | _http_sspi_t *conn = calloc(sizeof(_http_sspi_t), 1); | |
1011 | ||
1012 | return (conn); | |
1013 | } | |
1014 | ||
1015 | ||
1016 | /* | |
1017 | * 'http_sspi_client()' - Negotiate a TLS connection as a client. | |
1018 | */ | |
1019 | ||
1020 | static int /* O - 0 on success, -1 on failure */ | |
1021 | http_sspi_client(http_t *http, /* I - Client connection */ | |
1022 | const char *hostname) /* I - Server hostname */ | |
cc754834 | 1023 | { |
33c9220c | 1024 | _http_sspi_t *conn = http->tls; /* SSPI data */ |
9870d12b | 1025 | DWORD dwSize; /* Size for buffer */ |
33c9220c MS |
1026 | DWORD dwSSPIFlags; /* SSL connection attributes we want */ |
1027 | DWORD dwSSPIOutFlags; /* SSL connection attributes we got */ | |
1028 | TimeStamp tsExpiry; /* Time stamp */ | |
1029 | SECURITY_STATUS scRet; /* Status */ | |
1030 | int cbData; /* Data count */ | |
1031 | SecBufferDesc inBuffer; /* Array of SecBuffer structs */ | |
1032 | SecBuffer inBuffers[2]; /* Security package buffer */ | |
1033 | SecBufferDesc outBuffer; /* Array of SecBuffer structs */ | |
1034 | SecBuffer outBuffers[1]; /* Security package buffer */ | |
1035 | int ret = 0; /* Return value */ | |
9870d12b MS |
1036 | char username[1024], /* Current username */ |
1037 | common_name[1024]; /* CN=username */ | |
cc754834 | 1038 | |
cc754834 | 1039 | |
2ece34a9 MS |
1040 | DEBUG_printf(("http_sspi_client(http=%p, hostname=\"%s\")", http, hostname)); |
1041 | ||
cc754834 MS |
1042 | dwSSPIFlags = ISC_REQ_SEQUENCE_DETECT | |
1043 | ISC_REQ_REPLAY_DETECT | | |
1044 | ISC_REQ_CONFIDENTIALITY | | |
1045 | ISC_RET_EXTENDED_ERROR | | |
1046 | ISC_REQ_ALLOCATE_MEMORY | | |
1047 | ISC_REQ_STREAM; | |
1048 | ||
9870d12b MS |
1049 | /* |
1050 | * Lookup the client certificate... | |
1051 | */ | |
1052 | ||
1053 | dwSize = sizeof(username); | |
1054 | GetUserName(username, &dwSize); | |
1055 | snprintf(common_name, sizeof(common_name), "CN=%s", username); | |
1056 | ||
1057 | if (!http_sspi_credentials(http, L"ClientContainer", common_name, FALSE)) | |
1058 | { | |
1059 | DEBUG_puts("http_sspi_client: Unable to get client credentials."); | |
1060 | return (-1); | |
1061 | } | |
1062 | ||
cc754834 MS |
1063 | /* |
1064 | * Initiate a ClientHello message and generate a token. | |
1065 | */ | |
2ece34a9 | 1066 | |
cc754834 MS |
1067 | outBuffers[0].pvBuffer = NULL; |
1068 | outBuffers[0].BufferType = SECBUFFER_TOKEN; | |
1069 | outBuffers[0].cbBuffer = 0; | |
1070 | ||
2ece34a9 MS |
1071 | outBuffer.cBuffers = 1; |
1072 | outBuffer.pBuffers = outBuffers; | |
cc754834 MS |
1073 | outBuffer.ulVersion = SECBUFFER_VERSION; |
1074 | ||
2ece34a9 | 1075 | scRet = InitializeSecurityContext(&conn->creds, NULL, TEXT(""), dwSSPIFlags, 0, SECURITY_NATIVE_DREP, NULL, 0, &conn->context, &outBuffer, &dwSSPIOutFlags, &tsExpiry); |
cc754834 MS |
1076 | |
1077 | if (scRet != SEC_I_CONTINUE_NEEDED) | |
1078 | { | |
d777d26d | 1079 | DEBUG_printf(("http_sspi_client: InitializeSecurityContext(1) failed: %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 | 1080 | return (-1); |
cc754834 MS |
1081 | } |
1082 | ||
1083 | /* | |
1084 | * Send response to server if there is one. | |
1085 | */ | |
2ece34a9 | 1086 | |
cc754834 MS |
1087 | if (outBuffers[0].cbBuffer && outBuffers[0].pvBuffer) |
1088 | { | |
2ece34a9 | 1089 | if ((cbData = send(http->fd, outBuffers[0].pvBuffer, outBuffers[0].cbBuffer, 0)) <= 0) |
cc754834 | 1090 | { |
2ece34a9 | 1091 | DEBUG_printf(("http_sspi_client: send failed: %d", WSAGetLastError())); |
cc754834 MS |
1092 | FreeContextBuffer(outBuffers[0].pvBuffer); |
1093 | DeleteSecurityContext(&conn->context); | |
2ece34a9 | 1094 | return (-1); |
cc754834 MS |
1095 | } |
1096 | ||
2ece34a9 | 1097 | DEBUG_printf(("http_sspi_client: %d bytes of handshake data sent.", cbData)); |
cc754834 | 1098 | |
cc754834 MS |
1099 | FreeContextBuffer(outBuffers[0].pvBuffer); |
1100 | outBuffers[0].pvBuffer = NULL; | |
1101 | } | |
1102 | ||
1103 | dwSSPIFlags = ISC_REQ_MANUAL_CRED_VALIDATION | | |
2ece34a9 | 1104 | ISC_REQ_SEQUENCE_DETECT | |
cc754834 MS |
1105 | ISC_REQ_REPLAY_DETECT | |
1106 | ISC_REQ_CONFIDENTIALITY | | |
1107 | ISC_RET_EXTENDED_ERROR | | |
1108 | ISC_REQ_ALLOCATE_MEMORY | | |
1109 | ISC_REQ_STREAM; | |
1110 | ||
1111 | conn->decryptBufferUsed = 0; | |
1112 | ||
321d8d57 | 1113 | /* |
cc754834 MS |
1114 | * Loop until the handshake is finished or an error occurs. |
1115 | */ | |
2ece34a9 | 1116 | |
cc754834 MS |
1117 | scRet = SEC_I_CONTINUE_NEEDED; |
1118 | ||
1119 | while(scRet == SEC_I_CONTINUE_NEEDED || | |
1120 | scRet == SEC_E_INCOMPLETE_MESSAGE || | |
321d8d57 | 1121 | scRet == SEC_I_INCOMPLETE_CREDENTIALS) |
cc754834 | 1122 | { |
2ece34a9 | 1123 | if (conn->decryptBufferUsed == 0 || scRet == SEC_E_INCOMPLETE_MESSAGE) |
cc754834 | 1124 | { |
321d8d57 | 1125 | if (conn->decryptBufferLength <= conn->decryptBufferUsed) |
cc754834 | 1126 | { |
2ece34a9 | 1127 | BYTE *temp; /* New buffer */ |
cc754834 | 1128 | |
2ece34a9 MS |
1129 | if (conn->decryptBufferLength >= 262144) |
1130 | { | |
1131 | WSASetLastError(E_OUTOFMEMORY); | |
1132 | DEBUG_puts("http_sspi_client: Decryption buffer too large (>256k)"); | |
1133 | return (-1); | |
1134 | } | |
1135 | ||
1136 | if ((temp = realloc(conn->decryptBuffer, conn->decryptBufferLength + 4096)) == NULL) | |
1137 | { | |
1138 | DEBUG_printf(("http_sspi_client: Unable to allocate %d byte buffer.", conn->decryptBufferLength + 4096)); | |
1139 | WSASetLastError(E_OUTOFMEMORY); | |
1140 | return (-1); | |
1141 | } | |
1142 | ||
1143 | conn->decryptBufferLength += 4096; | |
1144 | conn->decryptBuffer = temp; | |
cc754834 | 1145 | } |
321d8d57 | 1146 | |
2ece34a9 | 1147 | cbData = recv(http->fd, conn->decryptBuffer + conn->decryptBufferUsed, (int)(conn->decryptBufferLength - conn->decryptBufferUsed), 0); |
321d8d57 | 1148 | |
2ece34a9 | 1149 | if (cbData < 0) |
cc754834 | 1150 | { |
2ece34a9 MS |
1151 | DEBUG_printf(("http_sspi_client: recv failed: %d", WSAGetLastError())); |
1152 | return (-1); | |
cc754834 MS |
1153 | } |
1154 | else if (cbData == 0) | |
1155 | { | |
2ece34a9 MS |
1156 | DEBUG_printf(("http_sspi_client: Server unexpectedly disconnected.")); |
1157 | return (-1); | |
cc754834 MS |
1158 | } |
1159 | ||
2ece34a9 | 1160 | DEBUG_printf(("http_sspi_client: %d bytes of handshake data received", cbData)); |
cc754834 MS |
1161 | |
1162 | conn->decryptBufferUsed += cbData; | |
1163 | } | |
1164 | ||
1165 | /* | |
2ece34a9 MS |
1166 | * Set up the input buffers. Buffer 0 is used to pass in data received from |
1167 | * the server. Schannel will consume some or all of this. Leftover data | |
1168 | * (if any) will be placed in buffer 1 and given a buffer type of | |
1169 | * SECBUFFER_EXTRA. | |
cc754834 | 1170 | */ |
2ece34a9 | 1171 | |
cc754834 | 1172 | inBuffers[0].pvBuffer = conn->decryptBuffer; |
2ece34a9 | 1173 | inBuffers[0].cbBuffer = (unsigned long)conn->decryptBufferUsed; |
cc754834 MS |
1174 | inBuffers[0].BufferType = SECBUFFER_TOKEN; |
1175 | ||
1176 | inBuffers[1].pvBuffer = NULL; | |
1177 | inBuffers[1].cbBuffer = 0; | |
1178 | inBuffers[1].BufferType = SECBUFFER_EMPTY; | |
1179 | ||
1180 | inBuffer.cBuffers = 2; | |
1181 | inBuffer.pBuffers = inBuffers; | |
1182 | inBuffer.ulVersion = SECBUFFER_VERSION; | |
1183 | ||
1184 | /* | |
2ece34a9 MS |
1185 | * Set up the output buffers. These are initialized to NULL so as to make it |
1186 | * less likely we'll attempt to free random garbage later. | |
cc754834 | 1187 | */ |
cc754834 | 1188 | |
2ece34a9 MS |
1189 | outBuffers[0].pvBuffer = NULL; |
1190 | outBuffers[0].BufferType = SECBUFFER_TOKEN; | |
1191 | outBuffers[0].cbBuffer = 0; | |
1192 | ||
1193 | outBuffer.cBuffers = 1; | |
1194 | outBuffer.pBuffers = outBuffers; | |
1195 | outBuffer.ulVersion = SECBUFFER_VERSION; | |
cc754834 MS |
1196 | |
1197 | /* | |
1198 | * Call InitializeSecurityContext. | |
1199 | */ | |
2ece34a9 MS |
1200 | |
1201 | scRet = InitializeSecurityContext(&conn->creds, &conn->context, NULL, dwSSPIFlags, 0, SECURITY_NATIVE_DREP, &inBuffer, 0, NULL, &outBuffer, &dwSSPIOutFlags, &tsExpiry); | |
cc754834 MS |
1202 | |
1203 | /* | |
2ece34a9 MS |
1204 | * If InitializeSecurityContext was successful (or if the error was one of |
1205 | * the special extended ones), send the contents of the output buffer to the | |
1206 | * server. | |
cc754834 | 1207 | */ |
2ece34a9 | 1208 | |
cc754834 MS |
1209 | if (scRet == SEC_E_OK || |
1210 | scRet == SEC_I_CONTINUE_NEEDED || | |
1211 | FAILED(scRet) && (dwSSPIOutFlags & ISC_RET_EXTENDED_ERROR)) | |
1212 | { | |
1213 | if (outBuffers[0].cbBuffer && outBuffers[0].pvBuffer) | |
1214 | { | |
2ece34a9 | 1215 | cbData = send(http->fd, outBuffers[0].pvBuffer, outBuffers[0].cbBuffer, 0); |
321d8d57 | 1216 | |
2ece34a9 | 1217 | if (cbData <= 0) |
cc754834 | 1218 | { |
2ece34a9 | 1219 | DEBUG_printf(("http_sspi_client: send failed: %d", WSAGetLastError())); |
cc754834 MS |
1220 | FreeContextBuffer(outBuffers[0].pvBuffer); |
1221 | DeleteSecurityContext(&conn->context); | |
2ece34a9 | 1222 | return (-1); |
cc754834 MS |
1223 | } |
1224 | ||
2ece34a9 | 1225 | DEBUG_printf(("http_sspi_client: %d bytes of handshake data sent.", cbData)); |
cc754834 MS |
1226 | |
1227 | /* | |
1228 | * Free output buffer. | |
1229 | */ | |
2ece34a9 | 1230 | |
cc754834 MS |
1231 | FreeContextBuffer(outBuffers[0].pvBuffer); |
1232 | outBuffers[0].pvBuffer = NULL; | |
1233 | } | |
1234 | } | |
1235 | ||
1236 | /* | |
2ece34a9 MS |
1237 | * If InitializeSecurityContext returned SEC_E_INCOMPLETE_MESSAGE, then we |
1238 | * need to read more data from the server and try again. | |
cc754834 | 1239 | */ |
2ece34a9 | 1240 | |
cc754834 MS |
1241 | if (scRet == SEC_E_INCOMPLETE_MESSAGE) |
1242 | continue; | |
1243 | ||
1244 | /* | |
2ece34a9 MS |
1245 | * If InitializeSecurityContext returned SEC_E_OK, then the handshake |
1246 | * completed successfully. | |
cc754834 | 1247 | */ |
2ece34a9 | 1248 | |
cc754834 MS |
1249 | if (scRet == SEC_E_OK) |
1250 | { | |
1251 | /* | |
1252 | * If the "extra" buffer contains data, this is encrypted application | |
2ece34a9 MS |
1253 | * protocol layer stuff. It needs to be saved. The application layer will |
1254 | * later decrypt it with DecryptMessage. | |
cc754834 | 1255 | */ |
2ece34a9 MS |
1256 | |
1257 | DEBUG_puts("http_sspi_client: Handshake was successful."); | |
cc754834 MS |
1258 | |
1259 | if (inBuffers[1].BufferType == SECBUFFER_EXTRA) | |
1260 | { | |
2ece34a9 | 1261 | memmove(conn->decryptBuffer, conn->decryptBuffer + conn->decryptBufferUsed - inBuffers[1].cbBuffer, inBuffers[1].cbBuffer); |
cc754834 MS |
1262 | |
1263 | conn->decryptBufferUsed = inBuffers[1].cbBuffer; | |
1264 | ||
2ece34a9 | 1265 | DEBUG_printf(("http_sspi_client: %d bytes of app data was bundled with handshake data", conn->decryptBufferUsed)); |
cc754834 MS |
1266 | } |
1267 | else | |
1268 | conn->decryptBufferUsed = 0; | |
1269 | ||
1270 | /* | |
1271 | * Bail out to quit | |
1272 | */ | |
2ece34a9 | 1273 | |
cc754834 MS |
1274 | break; |
1275 | } | |
1276 | ||
1277 | /* | |
1278 | * Check for fatal error. | |
1279 | */ | |
2ece34a9 | 1280 | |
cc754834 MS |
1281 | if (FAILED(scRet)) |
1282 | { | |
d777d26d | 1283 | DEBUG_printf(("http_sspi_client: InitializeSecurityContext(2) failed: %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 | 1284 | ret = -1; |
cc754834 MS |
1285 | break; |
1286 | } | |
1287 | ||
1288 | /* | |
1289 | * If InitializeSecurityContext returned SEC_I_INCOMPLETE_CREDENTIALS, | |
321d8d57 | 1290 | * then the server just requested client authentication. |
cc754834 | 1291 | */ |
2ece34a9 | 1292 | |
cc754834 MS |
1293 | if (scRet == SEC_I_INCOMPLETE_CREDENTIALS) |
1294 | { | |
1295 | /* | |
1296 | * Unimplemented | |
1297 | */ | |
2ece34a9 MS |
1298 | |
1299 | DEBUG_printf(("http_sspi_client: server requested client credentials.")); | |
1300 | ret = -1; | |
cc754834 MS |
1301 | break; |
1302 | } | |
1303 | ||
1304 | /* | |
2ece34a9 | 1305 | * Copy any leftover data from the "extra" buffer, and go around again. |
cc754834 | 1306 | */ |
2ece34a9 | 1307 | |
cc754834 MS |
1308 | if (inBuffers[1].BufferType == SECBUFFER_EXTRA) |
1309 | { | |
2ece34a9 | 1310 | memmove(conn->decryptBuffer, conn->decryptBuffer + conn->decryptBufferUsed - inBuffers[1].cbBuffer, inBuffers[1].cbBuffer); |
cc754834 MS |
1311 | |
1312 | conn->decryptBufferUsed = inBuffers[1].cbBuffer; | |
1313 | } | |
1314 | else | |
1315 | { | |
1316 | conn->decryptBufferUsed = 0; | |
1317 | } | |
1318 | } | |
1319 | ||
2ece34a9 | 1320 | if (!ret) |
cc754834 | 1321 | { |
cc754834 | 1322 | /* |
2ece34a9 | 1323 | * Success! Get the server cert |
cc754834 | 1324 | */ |
2ece34a9 MS |
1325 | |
1326 | conn->contextInitialized = TRUE; | |
1327 | ||
1328 | scRet = QueryContextAttributes(&conn->context, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (VOID *)&(conn->remoteCert)); | |
cc754834 MS |
1329 | |
1330 | if (scRet != SEC_E_OK) | |
1331 | { | |
d777d26d | 1332 | DEBUG_printf(("http_sspi_client: QueryContextAttributes failed(SECPKG_ATTR_REMOTE_CERT_CONTEXT): %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 | 1333 | return (-1); |
cc754834 MS |
1334 | } |
1335 | ||
2ece34a9 MS |
1336 | #if 0 |
1337 | /* TODO: Move this out for opt-in server cert validation, like other platforms. */ | |
1338 | scRet = http_sspi_verify(conn->remoteCert, hostname, conn->certFlags); | |
cc754834 MS |
1339 | |
1340 | if (scRet != SEC_E_OK) | |
1341 | { | |
d777d26d | 1342 | DEBUG_printf(("http_sspi_client: sspi_verify_certificate failed: %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 | 1343 | ret = -1; |
cc754834 MS |
1344 | goto cleanup; |
1345 | } | |
2ece34a9 | 1346 | #endif // 0 |
321d8d57 | 1347 | |
cc754834 MS |
1348 | /* |
1349 | * Find out how big the header/trailer will be: | |
1350 | */ | |
2ece34a9 | 1351 | |
cc754834 MS |
1352 | scRet = QueryContextAttributes(&conn->context, SECPKG_ATTR_STREAM_SIZES, &conn->streamSizes); |
1353 | ||
1354 | if (scRet != SEC_E_OK) | |
1355 | { | |
d777d26d | 1356 | DEBUG_printf(("http_sspi_client: QueryContextAttributes failed(SECPKG_ATTR_STREAM_SIZES): %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 | 1357 | ret = -1; |
cc754834 MS |
1358 | } |
1359 | } | |
1360 | ||
2ece34a9 MS |
1361 | return (ret); |
1362 | } | |
cc754834 | 1363 | |
cc754834 | 1364 | |
2ece34a9 | 1365 | /* |
9870d12b | 1366 | * 'http_sspi_credentials()' - Retrieve a TLS certificate from the system store. |
2ece34a9 MS |
1367 | */ |
1368 | ||
9870d12b MS |
1369 | static BOOL /* O - 1 on success, 0 on failure */ |
1370 | http_sspi_credentials( | |
1371 | http_t *http, /* I - HTTP connection */ | |
1372 | const LPWSTR container, /* I - Cert container name */ | |
1373 | const char *common_name, /* I - Common name of certificate */ | |
1374 | BOOL isServer) /* I - Is caller a server? */ | |
cc754834 | 1375 | { |
9870d12b MS |
1376 | _http_sspi_t *conn = http->tls; /* SSPI data */ |
1377 | HCERTSTORE store = NULL; /* Certificate store */ | |
1378 | PCCERT_CONTEXT storedContext = NULL; /* Context created from the store */ | |
1379 | PCCERT_CONTEXT createdContext = NULL; /* Context created by us */ | |
1380 | DWORD dwSize = 0; /* 32 bit size */ | |
1381 | PBYTE p = NULL; /* Temporary storage */ | |
1382 | HCRYPTPROV hProv = (HCRYPTPROV)NULL; | |
2ece34a9 | 1383 | /* Handle to a CSP */ |
9870d12b MS |
1384 | CERT_NAME_BLOB sib; /* Arbitrary array of bytes */ |
1385 | SCHANNEL_CRED SchannelCred; /* Schannel credential data */ | |
1386 | TimeStamp tsExpiry; /* Time stamp */ | |
1387 | SECURITY_STATUS Status; /* Status */ | |
1388 | HCRYPTKEY hKey = (HCRYPTKEY)NULL; /* Handle to crypto key */ | |
1389 | CRYPT_KEY_PROV_INFO kpi; /* Key container info */ | |
1390 | SYSTEMTIME et; /* System time */ | |
1391 | CERT_EXTENSIONS exts; /* Array of cert extensions */ | |
1392 | CRYPT_KEY_PROV_INFO ckp; /* Handle to crypto key */ | |
1393 | BOOL ok = TRUE; /* Return value */ | |
cc754834 | 1394 | |
cc754834 | 1395 | |
9870d12b | 1396 | if (!CryptAcquireContextW(&hProv, (LPWSTR)container, MS_DEF_PROV_W, PROV_RSA_FULL, CRYPT_NEWKEYSET | CRYPT_MACHINE_KEYSET)) |
cc754834 | 1397 | { |
2ece34a9 | 1398 | if (GetLastError() == NTE_EXISTS) |
cc754834 | 1399 | { |
9870d12b | 1400 | if (!CryptAcquireContextW(&hProv, (LPWSTR)container, MS_DEF_PROV_W, PROV_RSA_FULL, CRYPT_MACHINE_KEYSET)) |
cc754834 | 1401 | { |
d777d26d | 1402 | DEBUG_printf(("http_sspi_credentials: CryptAcquireContext failed: %s", http_sspi_strerror(conn, GetLastError()))); |
cc754834 MS |
1403 | ok = FALSE; |
1404 | goto cleanup; | |
1405 | } | |
cc754834 | 1406 | } |
2ece34a9 | 1407 | } |
cc754834 | 1408 | |
9870d12b | 1409 | store = CertOpenStore(CERT_STORE_PROV_SYSTEM, X509_ASN_ENCODING|PKCS_7_ASN_ENCODING, hProv, CERT_SYSTEM_STORE_LOCAL_MACHINE | CERT_STORE_NO_CRYPT_RELEASE_FLAG | CERT_STORE_OPEN_EXISTING_FLAG, L"MY"); |
cc754834 | 1410 | |
2ece34a9 MS |
1411 | if (!store) |
1412 | { | |
d777d26d | 1413 | DEBUG_printf(("http_sspi_credentials: CertOpenSystemStore failed: %s", http_sspi_strerror(conn, GetLastError()))); |
2ece34a9 MS |
1414 | ok = FALSE; |
1415 | goto cleanup; | |
1416 | } | |
cc754834 | 1417 | |
2ece34a9 | 1418 | dwSize = 0; |
cc754834 | 1419 | |
9870d12b | 1420 | if (!CertStrToName(X509_ASN_ENCODING, common_name, CERT_OID_NAME_STR, NULL, NULL, &dwSize, NULL)) |
2ece34a9 | 1421 | { |
d777d26d | 1422 | DEBUG_printf(("http_sspi_credentials: CertStrToName failed: %s", http_sspi_strerror(conn, GetLastError()))); |
2ece34a9 MS |
1423 | ok = FALSE; |
1424 | goto cleanup; | |
1425 | } | |
cc754834 | 1426 | |
9870d12b | 1427 | p = (PBYTE)malloc(dwSize); |
cc754834 | 1428 | |
2ece34a9 MS |
1429 | if (!p) |
1430 | { | |
9870d12b | 1431 | DEBUG_printf(("http_sspi_credentials: malloc failed for %d bytes", dwSize)); |
2ece34a9 MS |
1432 | ok = FALSE; |
1433 | goto cleanup; | |
1434 | } | |
cc754834 | 1435 | |
9870d12b | 1436 | if (!CertStrToName(X509_ASN_ENCODING, common_name, CERT_OID_NAME_STR, NULL, p, &dwSize, NULL)) |
2ece34a9 | 1437 | { |
d777d26d | 1438 | DEBUG_printf(("_sspiGetCredentials: CertStrToName failed: %s", http_sspi_strerror(conn, GetLastError()))); |
2ece34a9 MS |
1439 | ok = FALSE; |
1440 | goto cleanup; | |
1441 | } | |
cc754834 | 1442 | |
2ece34a9 MS |
1443 | sib.cbData = dwSize; |
1444 | sib.pbData = p; | |
cc754834 | 1445 | |
9870d12b | 1446 | storedContext = CertFindCertificateInStore(store, X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, 0, CERT_FIND_SUBJECT_NAME, &sib, NULL); |
cc754834 | 1447 | |
2ece34a9 MS |
1448 | if (!storedContext) |
1449 | { | |
1450 | /* | |
9870d12b | 1451 | * If we couldn't find the context, then we'll create a new one... |
2ece34a9 | 1452 | */ |
9870d12b | 1453 | |
2ece34a9 MS |
1454 | if (!CryptGenKey(hProv, AT_KEYEXCHANGE, CRYPT_EXPORTABLE, &hKey)) |
1455 | { | |
d777d26d | 1456 | DEBUG_printf(("_sspiGetCredentials: CryptGenKey failed: %s", http_sspi_strerror(conn, GetLastError()))); |
2ece34a9 MS |
1457 | ok = FALSE; |
1458 | goto cleanup; | |
cc754834 MS |
1459 | } |
1460 | ||
2ece34a9 | 1461 | ZeroMemory(&kpi, sizeof(kpi)); |
9870d12b MS |
1462 | kpi.pwszContainerName = (LPWSTR)container; |
1463 | kpi.pwszProvName = MS_DEF_PROV_W; | |
1464 | kpi.dwProvType = PROV_RSA_FULL; | |
1465 | kpi.dwFlags = CERT_SET_KEY_CONTEXT_PROP_ID; | |
1466 | kpi.dwKeySpec = AT_KEYEXCHANGE; | |
cc754834 | 1467 | |
2ece34a9 MS |
1468 | GetSystemTime(&et); |
1469 | et.wYear += 10; | |
1470 | ||
1471 | ZeroMemory(&exts, sizeof(exts)); | |
1472 | ||
9870d12b | 1473 | createdContext = CertCreateSelfSignCertificate(hProv, &sib, 0, &kpi, NULL, NULL, &et, &exts); |
2ece34a9 MS |
1474 | |
1475 | if (!createdContext) | |
cc754834 | 1476 | { |
d777d26d | 1477 | DEBUG_printf(("_sspiGetCredentials: CertCreateSelfSignCertificate failed: %s", http_sspi_strerror(conn, GetLastError()))); |
cc754834 | 1478 | ok = FALSE; |
2ece34a9 | 1479 | goto cleanup; |
cc754834 MS |
1480 | } |
1481 | ||
9870d12b | 1482 | if (!CertAddCertificateContextToStore(store, createdContext, CERT_STORE_ADD_REPLACE_EXISTING, &storedContext)) |
cc754834 | 1483 | { |
d777d26d | 1484 | DEBUG_printf(("_sspiGetCredentials: CertAddCertificateContextToStore failed: %s", http_sspi_strerror(conn, GetLastError()))); |
2ece34a9 MS |
1485 | ok = FALSE; |
1486 | goto cleanup; | |
cc754834 | 1487 | } |
cc754834 | 1488 | |
2ece34a9 MS |
1489 | ZeroMemory(&ckp, sizeof(ckp)); |
1490 | ckp.pwszContainerName = (LPWSTR) container; | |
9870d12b MS |
1491 | ckp.pwszProvName = MS_DEF_PROV_W; |
1492 | ckp.dwProvType = PROV_RSA_FULL; | |
1493 | ckp.dwFlags = CRYPT_MACHINE_KEYSET; | |
1494 | ckp.dwKeySpec = AT_KEYEXCHANGE; | |
1495 | ||
1496 | if (!CertSetCertificateContextProperty(storedContext, CERT_KEY_PROV_INFO_PROP_ID, 0, &ckp)) | |
cc754834 | 1497 | { |
d777d26d | 1498 | DEBUG_printf(("_sspiGetCredentials: CertSetCertificateContextProperty failed: %s", http_sspi_strerror(conn, GetLastError()))); |
cc754834 | 1499 | ok = FALSE; |
2ece34a9 | 1500 | goto cleanup; |
cc754834 MS |
1501 | } |
1502 | } | |
1503 | ||
2ece34a9 | 1504 | ZeroMemory(&SchannelCred, sizeof(SchannelCred)); |
cc754834 | 1505 | |
2ece34a9 | 1506 | SchannelCred.dwVersion = SCHANNEL_CRED_VERSION; |
9870d12b MS |
1507 | SchannelCred.cCreds = 1; |
1508 | SchannelCred.paCred = &storedContext; | |
cc754834 | 1509 | |
2ece34a9 | 1510 | /* |
9870d12b | 1511 | * SSPI doesn't seem to like it if grbitEnabledProtocols is set for a client. |
2ece34a9 | 1512 | */ |
9870d12b | 1513 | |
2ece34a9 MS |
1514 | if (isServer) |
1515 | SchannelCred.grbitEnabledProtocols = SP_PROT_SSL3TLS1; | |
cc754834 | 1516 | |
2ece34a9 MS |
1517 | /* |
1518 | * Create an SSPI credential. | |
1519 | */ | |
9870d12b MS |
1520 | |
1521 | Status = AcquireCredentialsHandle(NULL, UNISP_NAME, isServer ? SECPKG_CRED_INBOUND : SECPKG_CRED_OUTBOUND, NULL, &SchannelCred, NULL, NULL, &conn->creds, &tsExpiry); | |
2ece34a9 | 1522 | if (Status != SEC_E_OK) |
cc754834 | 1523 | { |
d777d26d | 1524 | DEBUG_printf(("_sspiGetCredentials: AcquireCredentialsHandle failed: %s", http_sspi_strerror(conn, Status))); |
2ece34a9 | 1525 | ok = FALSE; |
cc754834 MS |
1526 | goto cleanup; |
1527 | } | |
1528 | ||
2ece34a9 | 1529 | cleanup: |
cc754834 | 1530 | |
2ece34a9 MS |
1531 | /* |
1532 | * Cleanup | |
1533 | */ | |
9870d12b | 1534 | |
2ece34a9 MS |
1535 | if (hKey) |
1536 | CryptDestroyKey(hKey); | |
cc754834 | 1537 | |
2ece34a9 MS |
1538 | if (createdContext) |
1539 | CertFreeCertificateContext(createdContext); | |
321d8d57 | 1540 | |
2ece34a9 MS |
1541 | if (storedContext) |
1542 | CertFreeCertificateContext(storedContext); | |
cc754834 | 1543 | |
2ece34a9 MS |
1544 | if (p) |
1545 | free(p); | |
cc754834 | 1546 | |
2ece34a9 MS |
1547 | if (store) |
1548 | CertCloseStore(store, 0); | |
cc754834 | 1549 | |
2ece34a9 MS |
1550 | if (hProv) |
1551 | CryptReleaseContext(hProv, 0); | |
cc754834 | 1552 | |
2ece34a9 | 1553 | return (ok); |
cc754834 | 1554 | } |
9870d12b MS |
1555 | |
1556 | ||
1557 | /* | |
1558 | * 'http_sspi_free()' - Close a connection and free resources. | |
1559 | */ | |
1560 | ||
1561 | static void | |
d777d26d | 1562 | http_sspi_free(_http_sspi_t *conn) /* I - SSPI data */ |
9870d12b MS |
1563 | { |
1564 | if (!conn) | |
1565 | return; | |
1566 | ||
1567 | if (conn->contextInitialized) | |
1568 | DeleteSecurityContext(&conn->context); | |
1569 | ||
1570 | if (conn->decryptBuffer) | |
1571 | free(conn->decryptBuffer); | |
1572 | ||
1573 | if (conn->readBuffer) | |
1574 | free(conn->readBuffer); | |
1575 | ||
1576 | if (conn->writeBuffer) | |
1577 | free(conn->writeBuffer); | |
1578 | ||
1579 | if (conn->localCert) | |
1580 | CertFreeCertificateContext(conn->localCert); | |
1581 | ||
1582 | if (conn->remoteCert) | |
1583 | CertFreeCertificateContext(conn->remoteCert); | |
1584 | ||
1585 | free(conn); | |
1586 | } | |
cc754834 MS |
1587 | |
1588 | ||
1589 | /* | |
2ece34a9 | 1590 | * 'http_sspi_server()' - Negotiate a TLS connection as a server. |
cc754834 | 1591 | */ |
2ece34a9 MS |
1592 | |
1593 | static int /* O - 0 on success, -1 on failure */ | |
1594 | http_sspi_server(http_t *http, /* I - HTTP connection */ | |
1595 | const char *hostname) /* I - Hostname of server */ | |
cc754834 | 1596 | { |
2ece34a9 MS |
1597 | _http_sspi_t *conn = http->tls; /* I - SSPI data */ |
1598 | DWORD dwSSPIFlags; /* SSL connection attributes we want */ | |
1599 | DWORD dwSSPIOutFlags; /* SSL connection attributes we got */ | |
1600 | TimeStamp tsExpiry; /* Time stamp */ | |
1601 | SECURITY_STATUS scRet; /* SSPI Status */ | |
1602 | SecBufferDesc inBuffer; /* Array of SecBuffer structs */ | |
1603 | SecBuffer inBuffers[2]; /* Security package buffer */ | |
1604 | SecBufferDesc outBuffer; /* Array of SecBuffer structs */ | |
1605 | SecBuffer outBuffers[1]; /* Security package buffer */ | |
1606 | int num = 0; /* 32 bit status value */ | |
1607 | BOOL fInitContext = TRUE; /* Has the context been init'd? */ | |
1608 | int ret = 0; /* Return value */ | |
1609 | ||
1610 | ||
1611 | DEBUG_printf(("http_sspi_server(http=%p, hostname=\"%s\")", http, hostname)); | |
cc754834 | 1612 | |
2ece34a9 MS |
1613 | dwSSPIFlags = ASC_REQ_SEQUENCE_DETECT | |
1614 | ASC_REQ_REPLAY_DETECT | | |
1615 | ASC_REQ_CONFIDENTIALITY | | |
1616 | ASC_REQ_EXTENDED_ERROR | | |
1617 | ASC_REQ_ALLOCATE_MEMORY | | |
1618 | ASC_REQ_STREAM; | |
1619 | ||
1620 | conn->decryptBufferUsed = 0; | |
cc754834 MS |
1621 | |
1622 | /* | |
2ece34a9 | 1623 | * Set OutBuffer for AcceptSecurityContext call |
cc754834 | 1624 | */ |
cc754834 | 1625 | |
2ece34a9 MS |
1626 | outBuffer.cBuffers = 1; |
1627 | outBuffer.pBuffers = outBuffers; | |
1628 | outBuffer.ulVersion = SECBUFFER_VERSION; | |
cc754834 | 1629 | |
2ece34a9 | 1630 | scRet = SEC_I_CONTINUE_NEEDED; |
cc754834 | 1631 | |
2ece34a9 MS |
1632 | while (scRet == SEC_I_CONTINUE_NEEDED || |
1633 | scRet == SEC_E_INCOMPLETE_MESSAGE || | |
1634 | scRet == SEC_I_INCOMPLETE_CREDENTIALS) | |
cc754834 | 1635 | { |
2ece34a9 | 1636 | if (conn->decryptBufferUsed == 0 || scRet == SEC_E_INCOMPLETE_MESSAGE) |
cc754834 | 1637 | { |
321d8d57 | 1638 | if (conn->decryptBufferLength <= conn->decryptBufferUsed) |
cc754834 | 1639 | { |
2ece34a9 | 1640 | BYTE *temp; /* New buffer */ |
cc754834 | 1641 | |
2ece34a9 MS |
1642 | if (conn->decryptBufferLength >= 262144) |
1643 | { | |
1644 | WSASetLastError(E_OUTOFMEMORY); | |
1645 | DEBUG_puts("http_sspi_server: Decryption buffer too large (>256k)"); | |
1646 | return (-1); | |
1647 | } | |
cc754834 | 1648 | |
2ece34a9 MS |
1649 | if ((temp = realloc(conn->decryptBuffer, conn->decryptBufferLength + 4096)) == NULL) |
1650 | { | |
1651 | DEBUG_printf(("http_sspi_server: Unable to allocate %d byte buffer.", conn->decryptBufferLength + 4096)); | |
1652 | WSASetLastError(E_OUTOFMEMORY); | |
1653 | return (-1); | |
1654 | } | |
cc754834 | 1655 | |
2ece34a9 MS |
1656 | conn->decryptBufferLength += 4096; |
1657 | conn->decryptBuffer = temp; | |
1658 | } | |
cc754834 | 1659 | |
2ece34a9 | 1660 | for (;;) |
cc754834 | 1661 | { |
2ece34a9 | 1662 | num = recv(http->fd, conn->decryptBuffer + conn->decryptBufferUsed, (int)(conn->decryptBufferLength - conn->decryptBufferUsed), 0); |
cc754834 | 1663 | |
33c9220c | 1664 | if (num == -1 && WSAGetLastError() == WSAEWOULDBLOCK) |
2ece34a9 | 1665 | Sleep(1); |
cc754834 | 1666 | else |
2ece34a9 | 1667 | break; |
cc754834 | 1668 | } |
cc754834 | 1669 | |
2ece34a9 MS |
1670 | if (num < 0) |
1671 | { | |
1672 | DEBUG_printf(("http_sspi_server: recv failed: %d", WSAGetLastError())); | |
1673 | return (-1); | |
1674 | } | |
1675 | else if (num == 0) | |
1676 | { | |
1677 | DEBUG_puts("http_sspi_server: client disconnected"); | |
1678 | return (-1); | |
1679 | } | |
1680 | ||
1681 | DEBUG_printf(("http_sspi_server: received %d (handshake) bytes from client.", num)); | |
1682 | conn->decryptBufferUsed += num; | |
cc754834 MS |
1683 | } |
1684 | ||
1685 | /* | |
2ece34a9 MS |
1686 | * InBuffers[1] is for getting extra data that SSPI/SCHANNEL doesn't process |
1687 | * on this run around the loop. | |
cc754834 | 1688 | */ |
2ece34a9 MS |
1689 | |
1690 | inBuffers[0].pvBuffer = conn->decryptBuffer; | |
1691 | inBuffers[0].cbBuffer = (unsigned long)conn->decryptBufferUsed; | |
1692 | inBuffers[0].BufferType = SECBUFFER_TOKEN; | |
1693 | ||
1694 | inBuffers[1].pvBuffer = NULL; | |
1695 | inBuffers[1].cbBuffer = 0; | |
1696 | inBuffers[1].BufferType = SECBUFFER_EMPTY; | |
1697 | ||
1698 | inBuffer.cBuffers = 2; | |
1699 | inBuffer.pBuffers = inBuffers; | |
1700 | inBuffer.ulVersion = SECBUFFER_VERSION; | |
cc754834 MS |
1701 | |
1702 | /* | |
2ece34a9 MS |
1703 | * Initialize these so if we fail, pvBuffer contains NULL, so we don't try to |
1704 | * free random garbage at the quit. | |
cc754834 | 1705 | */ |
cc754834 | 1706 | |
2ece34a9 MS |
1707 | outBuffers[0].pvBuffer = NULL; |
1708 | outBuffers[0].BufferType = SECBUFFER_TOKEN; | |
1709 | outBuffers[0].cbBuffer = 0; | |
1710 | ||
1711 | scRet = AcceptSecurityContext(&conn->creds, (fInitContext?NULL:&conn->context), &inBuffer, dwSSPIFlags, SECURITY_NATIVE_DREP, (fInitContext?&conn->context:NULL), &outBuffer, &dwSSPIOutFlags, &tsExpiry); | |
cc754834 | 1712 | |
2ece34a9 MS |
1713 | fInitContext = FALSE; |
1714 | ||
1715 | if (scRet == SEC_E_OK || | |
1716 | scRet == SEC_I_CONTINUE_NEEDED || | |
1717 | (FAILED(scRet) && ((dwSSPIOutFlags & ISC_RET_EXTENDED_ERROR) != 0))) | |
1718 | { | |
1719 | if (outBuffers[0].cbBuffer && outBuffers[0].pvBuffer) | |
cc754834 | 1720 | { |
2ece34a9 MS |
1721 | /* |
1722 | * Send response to server if there is one. | |
1723 | */ | |
cc754834 | 1724 | |
2ece34a9 MS |
1725 | num = send(http->fd, outBuffers[0].pvBuffer, outBuffers[0].cbBuffer, 0); |
1726 | ||
1727 | if (num <= 0) | |
1728 | { | |
1729 | DEBUG_printf(("http_sspi_server: handshake send failed: %d", WSAGetLastError())); | |
1730 | return (-1); | |
cc754834 MS |
1731 | } |
1732 | ||
2ece34a9 | 1733 | DEBUG_printf(("http_sspi_server: sent %d handshake bytes to client.", outBuffers[0].cbBuffer)); |
cc754834 | 1734 | |
2ece34a9 MS |
1735 | FreeContextBuffer(outBuffers[0].pvBuffer); |
1736 | outBuffers[0].pvBuffer = NULL; | |
cc754834 | 1737 | } |
2ece34a9 MS |
1738 | } |
1739 | ||
1740 | if (scRet == SEC_E_OK) | |
1741 | { | |
1742 | /* | |
1743 | * If there's extra data then save it for next time we go to decrypt. | |
1744 | */ | |
cc754834 | 1745 | |
2ece34a9 MS |
1746 | if (inBuffers[1].BufferType == SECBUFFER_EXTRA) |
1747 | { | |
1748 | memcpy(conn->decryptBuffer, (LPBYTE)(conn->decryptBuffer + conn->decryptBufferUsed - inBuffers[1].cbBuffer), inBuffers[1].cbBuffer); | |
1749 | conn->decryptBufferUsed = inBuffers[1].cbBuffer; | |
1750 | } | |
1751 | else | |
1752 | { | |
1753 | conn->decryptBufferUsed = 0; | |
1754 | } | |
1755 | break; | |
cc754834 | 1756 | } |
2ece34a9 | 1757 | else if (FAILED(scRet) && scRet != SEC_E_INCOMPLETE_MESSAGE) |
cc754834 | 1758 | { |
d777d26d | 1759 | DEBUG_printf(("http_sspi_server: AcceptSecurityContext failed: %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 MS |
1760 | ret = -1; |
1761 | break; | |
cc754834 MS |
1762 | } |
1763 | ||
2ece34a9 MS |
1764 | if (scRet != SEC_E_INCOMPLETE_MESSAGE && |
1765 | scRet != SEC_I_INCOMPLETE_CREDENTIALS) | |
cc754834 | 1766 | { |
2ece34a9 MS |
1767 | if (inBuffers[1].BufferType == SECBUFFER_EXTRA) |
1768 | { | |
1769 | memcpy(conn->decryptBuffer, (LPBYTE)(conn->decryptBuffer + conn->decryptBufferUsed - inBuffers[1].cbBuffer), inBuffers[1].cbBuffer); | |
1770 | conn->decryptBufferUsed = inBuffers[1].cbBuffer; | |
1771 | } | |
1772 | else | |
1773 | { | |
1774 | conn->decryptBufferUsed = 0; | |
1775 | } | |
cc754834 | 1776 | } |
2ece34a9 MS |
1777 | } |
1778 | ||
1779 | if (!ret) | |
1780 | { | |
1781 | conn->contextInitialized = TRUE; | |
1782 | ||
1783 | /* | |
1784 | * Find out how big the header will be: | |
1785 | */ | |
1786 | ||
1787 | scRet = QueryContextAttributes(&conn->context, SECPKG_ATTR_STREAM_SIZES, &conn->streamSizes); | |
1788 | ||
1789 | if (scRet != SEC_E_OK) | |
cc754834 | 1790 | { |
d777d26d | 1791 | DEBUG_printf(("http_sspi_server: QueryContextAttributes failed: %s", http_sspi_strerror(conn, scRet))); |
2ece34a9 | 1792 | ret = -1; |
cc754834 MS |
1793 | } |
1794 | } | |
1795 | ||
2ece34a9 | 1796 | return (ret); |
cc754834 MS |
1797 | } |
1798 | ||
1799 | ||
2ece34a9 | 1800 | #if 0 |
cc754834 | 1801 | /* |
2ece34a9 | 1802 | * '_sspiSetAllowsAnyRoot()' - Set the client cert policy for untrusted root certs |
cc754834 | 1803 | */ |
2ece34a9 MS |
1804 | void |
1805 | _sspiSetAllowsAnyRoot(_http_sspi_t *conn, | |
d777d26d | 1806 | /* I - SSPI data */ |
2ece34a9 MS |
1807 | BOOL allow) |
1808 | /* I - Allow any root */ | |
cc754834 | 1809 | { |
2ece34a9 MS |
1810 | conn->certFlags = (allow) ? conn->certFlags | SECURITY_FLAG_IGNORE_UNKNOWN_CA : |
1811 | conn->certFlags & ~SECURITY_FLAG_IGNORE_UNKNOWN_CA; | |
cc754834 MS |
1812 | } |
1813 | ||
1814 | ||
1815 | /* | |
2ece34a9 | 1816 | * '_sspiSetAllowsExpiredCerts()' - Set the client cert policy for expired root certs |
cc754834 MS |
1817 | */ |
1818 | void | |
2ece34a9 | 1819 | _sspiSetAllowsExpiredCerts(_http_sspi_t *conn, |
d777d26d | 1820 | /* I - SSPI data */ |
2ece34a9 MS |
1821 | BOOL allow) |
1822 | /* I - Allow expired certs */ | |
cc754834 | 1823 | { |
2ece34a9 MS |
1824 | conn->certFlags = (allow) ? conn->certFlags | SECURITY_FLAG_IGNORE_CERT_DATE_INVALID : |
1825 | conn->certFlags & ~SECURITY_FLAG_IGNORE_CERT_DATE_INVALID; | |
cc754834 MS |
1826 | } |
1827 | ||
1828 | ||
d777d26d MS |
1829 | /* |
1830 | * 'http_sspi_strerror()' - Return a string for the specified error code. | |
1831 | */ | |
1832 | ||
1833 | static const char * /* O - String for error */ | |
1834 | http_sspi_strerror(_http_sspi_t *conn, /* I - SSPI data */ | |
1835 | DWORD code) /* I - Error code */ | |
1836 | { | |
1837 | if (!FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, code, 0, conn->error, sizeof(conn->error), NULL)) | |
1838 | snprintf(conn->error, sizeof(conn->error), "Unknown error %x", code); | |
1839 | ||
1840 | return (conn->error); | |
1841 | } | |
1842 | ||
1843 | ||
cc754834 | 1844 | /* |
2ece34a9 | 1845 | * 'http_sspi_verify()' - Verify a certificate. |
cc754834 | 1846 | */ |
2ece34a9 MS |
1847 | |
1848 | static DWORD /* O - Error code (0 == No error) */ | |
1849 | http_sspi_verify( | |
1850 | PCCERT_CONTEXT cert, /* I - Server certificate */ | |
1851 | const char *common_name, /* I - Common name */ | |
1852 | DWORD dwCertFlags) /* I - Verification flags */ | |
cc754834 | 1853 | { |
2ece34a9 MS |
1854 | HTTPSPolicyCallbackData httpsPolicy; /* HTTPS Policy Struct */ |
1855 | CERT_CHAIN_POLICY_PARA policyPara; /* Cert chain policy parameters */ | |
1856 | CERT_CHAIN_POLICY_STATUS policyStatus;/* Cert chain policy status */ | |
1857 | CERT_CHAIN_PARA chainPara; /* Used for searching and matching criteria */ | |
1858 | PCCERT_CHAIN_CONTEXT chainContext = NULL; | |
cc754834 | 1859 | /* Certificate chain */ |
2ece34a9 MS |
1860 | PWSTR commonNameUnicode = NULL; |
1861 | /* Unicode common name */ | |
1862 | LPSTR rgszUsages[] = { szOID_PKIX_KP_SERVER_AUTH, | |
1863 | szOID_SERVER_GATED_CRYPTO, | |
1864 | szOID_SGC_NETSCAPE }; | |
cc754834 | 1865 | /* How are we using this certificate? */ |
2ece34a9 | 1866 | DWORD cUsages = sizeof(rgszUsages) / sizeof(LPSTR); |
cc754834 | 1867 | /* Number of ites in rgszUsages */ |
2ece34a9 MS |
1868 | DWORD count; /* 32 bit count variable */ |
1869 | DWORD status; /* Return value */ | |
cc754834 | 1870 | |
2ece34a9 MS |
1871 | |
1872 | if (!cert) | |
1873 | return (SEC_E_WRONG_PRINCIPAL); | |
cc754834 MS |
1874 | |
1875 | /* | |
2ece34a9 | 1876 | * Convert common name to Unicode. |
cc754834 | 1877 | */ |
cc754834 | 1878 | |
2ece34a9 MS |
1879 | if (!common_name || !*common_name) |
1880 | return (SEC_E_WRONG_PRINCIPAL); | |
1881 | ||
1882 | count = MultiByteToWideChar(CP_ACP, 0, common_name, -1, NULL, 0); | |
1883 | commonNameUnicode = LocalAlloc(LMEM_FIXED, count * sizeof(WCHAR)); | |
1884 | if (!commonNameUnicode) | |
1885 | return (SEC_E_INSUFFICIENT_MEMORY); | |
1886 | ||
1887 | if (!MultiByteToWideChar(CP_ACP, 0, common_name, -1, commonNameUnicode, count)) | |
cc754834 | 1888 | { |
2ece34a9 MS |
1889 | LocalFree(commonNameUnicode); |
1890 | return (SEC_E_WRONG_PRINCIPAL); | |
cc754834 MS |
1891 | } |
1892 | ||
1893 | /* | |
1894 | * Build certificate chain. | |
1895 | */ | |
2ece34a9 | 1896 | |
cc754834 | 1897 | ZeroMemory(&chainPara, sizeof(chainPara)); |
2ece34a9 | 1898 | |
cc754834 MS |
1899 | chainPara.cbSize = sizeof(chainPara); |
1900 | chainPara.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR; | |
1901 | chainPara.RequestedUsage.Usage.cUsageIdentifier = cUsages; | |
1902 | chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = rgszUsages; | |
1903 | ||
2ece34a9 | 1904 | if (!CertGetCertificateChain(NULL, cert, NULL, cert->hCertStore, &chainPara, 0, NULL, &chainContext)) |
cc754834 MS |
1905 | { |
1906 | status = GetLastError(); | |
d777d26d | 1907 | DEBUG_printf(("CertGetCertificateChain returned: %s", http_sspi_strerror(conn, status))); |
2ece34a9 MS |
1908 | |
1909 | LocalFree(commonNameUnicode); | |
1910 | return (status); | |
cc754834 MS |
1911 | } |
1912 | ||
1913 | /* | |
1914 | * Validate certificate chain. | |
321d8d57 | 1915 | */ |
2ece34a9 | 1916 | |
cc754834 MS |
1917 | ZeroMemory(&httpsPolicy, sizeof(HTTPSPolicyCallbackData)); |
1918 | httpsPolicy.cbStruct = sizeof(HTTPSPolicyCallbackData); | |
1919 | httpsPolicy.dwAuthType = AUTHTYPE_SERVER; | |
1920 | httpsPolicy.fdwChecks = dwCertFlags; | |
2ece34a9 | 1921 | httpsPolicy.pwszServerName = commonNameUnicode; |
cc754834 MS |
1922 | |
1923 | memset(&policyPara, 0, sizeof(policyPara)); | |
1924 | policyPara.cbSize = sizeof(policyPara); | |
1925 | policyPara.pvExtraPolicyPara = &httpsPolicy; | |
1926 | ||
1927 | memset(&policyStatus, 0, sizeof(policyStatus)); | |
1928 | policyStatus.cbSize = sizeof(policyStatus); | |
1929 | ||
2ece34a9 | 1930 | if (!CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL, chainContext, &policyPara, &policyStatus)) |
cc754834 MS |
1931 | { |
1932 | status = GetLastError(); | |
1933 | DEBUG_printf(("CertVerifyCertificateChainPolicy returned %d", status)); | |
cc754834 | 1934 | } |
2ece34a9 | 1935 | else if (policyStatus.dwError) |
cc754834 | 1936 | status = policyStatus.dwError; |
2ece34a9 MS |
1937 | else |
1938 | status = SEC_E_OK; | |
cc754834 MS |
1939 | |
1940 | if (chainContext) | |
1941 | CertFreeCertificateChain(chainContext); | |
1942 | ||
2ece34a9 MS |
1943 | if (commonNameUnicode) |
1944 | LocalFree(commonNameUnicode); | |
cc754834 MS |
1945 | |
1946 | return (status); | |
1947 | } | |
2ece34a9 | 1948 | #endif // 0 |
321d8d57 MS |
1949 | |
1950 | ||
1951 | /* | |
1952 | * End of "$Id$". | |
1953 | */ |