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Commit | Line | Data |
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2c85b752 MS |
1 | /* |
2 | * "$Id$" | |
3 | * | |
4 | * TLS support code for CUPS on OS X. | |
5 | * | |
3abb875b | 6 | * Copyright 2007-2015 by Apple Inc. |
2c85b752 MS |
7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
14 | * | |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | */ | |
17 | ||
ebb24a07 | 18 | /**** This file is included from tls.c ****/ |
2c85b752 MS |
19 | |
20 | /* | |
dafebafd | 21 | * Include necessary headers... |
2c85b752 MS |
22 | */ |
23 | ||
dafebafd MS |
24 | #include <spawn.h> |
25 | ||
26 | extern char **environ; | |
27 | ||
28 | ||
c0459938 MS |
29 | /* |
30 | * Local globals... | |
31 | */ | |
32 | ||
eb66bc71 | 33 | #ifdef HAVE_SECKEYCHAINOPEN |
c0459938 MS |
34 | static int tls_auto_create = 0; |
35 | /* Auto-create self-signed certs? */ | |
36 | static char *tls_common_name = NULL; | |
37 | /* Default common name */ | |
41e0907c MS |
38 | static SecKeychainRef tls_keychain = NULL; |
39 | /* Server cert keychain */ | |
40 | static char *tls_keypath = NULL; | |
41 | /* Server cert keychain path */ | |
42 | static _cups_mutex_t tls_mutex = _CUPS_MUTEX_INITIALIZER; | |
43 | /* Mutex for keychain/certs */ | |
b37d45d9 | 44 | static int tls_options = -1;/* Options for TLS connections */ |
eb66bc71 | 45 | #endif /* HAVE_SECKEYCHAINOPEN */ |
c0459938 MS |
46 | |
47 | ||
dafebafd MS |
48 | /* |
49 | * Local functions... | |
50 | */ | |
2c85b752 | 51 | |
eb66bc71 | 52 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 53 | static CFArrayRef http_cdsa_copy_server(const char *common_name); |
eb66bc71 | 54 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2ece34a9 | 55 | static SecCertificateRef http_cdsa_create_credential(http_credential_t *credential); |
005f7f1f | 56 | static const char *http_cdsa_default_path(char *buffer, size_t bufsize); |
41e0907c | 57 | static OSStatus http_cdsa_read(SSLConnectionRef connection, void *data, size_t *dataLength); |
88f1e9c8 | 58 | static int http_cdsa_set_credentials(http_t *http); |
41e0907c | 59 | static OSStatus http_cdsa_write(SSLConnectionRef connection, const void *data, size_t *dataLength); |
2c85b752 MS |
60 | |
61 | ||
3af9ac9e MS |
62 | /* |
63 | * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair. | |
64 | * | |
e1f19878 | 65 | * @since CUPS 2.0/OS 10.10@ |
3af9ac9e MS |
66 | */ |
67 | ||
68 | int /* O - 1 on success, 0 on failure */ | |
69 | cupsMakeServerCredentials( | |
f93b32b6 | 70 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
71 | const char *common_name, /* I - Common name */ |
72 | int num_alt_names, /* I - Number of subject alternate names */ | |
73 | const char **alt_names, /* I - Subject Alternate Names */ | |
74 | time_t expiration_date) /* I - Expiration date */ | |
75 | { | |
eb66bc71 | 76 | #if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE) && defined(HAVE_SECKEYCHAINOPEN) |
f93b32b6 | 77 | char filename[1024]; /* Default keychain path */ |
41e0907c MS |
78 | int status = 0; /* Return status */ |
79 | OSStatus err; /* Error code (if any) */ | |
80 | CFStringRef cfcommon_name = NULL; | |
81 | /* CF string for server name */ | |
82 | SecIdentityRef ident = NULL; /* Identity */ | |
83 | SecKeyRef publicKey = NULL, | |
84 | /* Public key */ | |
85 | privateKey = NULL; | |
86 | /* Private key */ | |
87 | CFMutableDictionaryRef keyParams = NULL; | |
88 | /* Key generation parameters */ | |
89 | ||
90 | ||
172bdf5d MS |
91 | 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)); |
92 | ||
3af9ac9e MS |
93 | (void)num_alt_names; |
94 | (void)alt_names; | |
95 | (void)expiration_date; | |
96 | ||
f93b32b6 | 97 | if (!path) |
005f7f1f | 98 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 MS |
99 | |
100 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); | |
41e0907c MS |
101 | if (!cfcommon_name) |
102 | goto cleanup; | |
103 | ||
104 | /* | |
105 | * Create a public/private key pair... | |
106 | */ | |
107 | ||
f93b32b6 | 108 | keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); |
41e0907c MS |
109 | if (!keyParams) |
110 | goto cleanup; | |
111 | ||
112 | CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeRSA); | |
113 | CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048")); | |
f93b32b6 | 114 | CFDictionaryAddValue(keyParams, kSecAttrLabel, CFSTR("CUPS Self-Signed Certificate")); |
41e0907c MS |
115 | |
116 | err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey); | |
117 | if (err != noErr) | |
118 | goto cleanup; | |
119 | ||
120 | /* | |
121 | * Create a self-signed certificate using the public/private key pair... | |
122 | */ | |
123 | ||
124 | CFIndex usageInt = kSecKeyUsageAll; | |
125 | CFNumberRef usage = CFNumberCreate(alloc, kCFNumberCFIndexType, &usageInt); | |
126 | CFDictionaryRef certParams = CFDictionaryCreateMutable(kCFAllocatorDefault, | |
127 | kSecCSRBasicContraintsPathLen, CFINT(0), kSecSubjectAltName, cfcommon_name, kSecCertificateKeyUsage, usage, NULL, NULL); | |
128 | CFRelease(usage); | |
129 | ||
130 | const void *ca_o[] = { kSecOidOrganization, CFSTR("") }; | |
131 | const void *ca_cn[] = { kSecOidCommonName, cfcommon_name }; | |
132 | CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL); | |
133 | CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL); | |
134 | const void *ca_dn_array[2]; | |
135 | ||
136 | ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL); | |
137 | ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL); | |
138 | ||
139 | CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL); | |
140 | SecCertificateRef cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey); | |
141 | CFRelease(subject); | |
142 | CFRelease(certParams); | |
143 | ||
144 | if (!cert) | |
145 | goto cleanup; | |
146 | ||
147 | ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey); | |
148 | ||
149 | if (ident) | |
150 | status = 1; | |
151 | ||
152 | /* | |
153 | * Cleanup and return... | |
154 | */ | |
155 | ||
156 | cleanup: | |
157 | ||
158 | if (cfcommon_name) | |
159 | CFRelease(cfcommon_name); | |
160 | ||
161 | if (keyParams) | |
162 | CFRelease(keyParams); | |
163 | ||
164 | if (ident) | |
165 | CFRelease(ident); | |
166 | ||
167 | if (cert) | |
168 | CFRelease(cert); | |
169 | ||
170 | if (publicKey) | |
171 | CFRelease(publicKey); | |
172 | ||
173 | if (privateKey) | |
174 | CFRelease(publicKey); | |
175 | ||
176 | return (status); | |
177 | ||
eb66bc71 | 178 | #else /* !(HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN) */ |
41e0907c | 179 | int pid, /* Process ID of command */ |
7d58a105 MS |
180 | status, /* Status of command */ |
181 | i; /* Looping var */ | |
41e0907c MS |
182 | char command[1024], /* Command */ |
183 | *argv[4], /* Command-line arguments */ | |
7d58a105 MS |
184 | *envp[1000], /* Environment variables */ |
185 | days[32], /* CERTTOOL_EXPIRATION_DAYS env var */ | |
41e0907c | 186 | keychain[1024], /* Keychain argument */ |
f93b32b6 MS |
187 | infofile[1024], /* Type-in information for cert */ |
188 | filename[1024]; /* Default keychain path */ | |
41e0907c MS |
189 | cups_file_t *fp; /* Seed/info file */ |
190 | ||
191 | ||
172bdf5d MS |
192 | 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)); |
193 | ||
41e0907c MS |
194 | (void)num_alt_names; |
195 | (void)alt_names; | |
41e0907c | 196 | |
f93b32b6 | 197 | if (!path) |
005f7f1f | 198 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 199 | |
41e0907c MS |
200 | /* |
201 | * Run the "certtool" command to generate a self-signed certificate... | |
202 | */ | |
203 | ||
204 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
205 | return (-1); | |
206 | ||
207 | /* | |
208 | * Create a file with the certificate information fields... | |
209 | * | |
210 | * Note: This assumes that the default questions are asked by the certtool | |
211 | * command... | |
212 | */ | |
213 | ||
214 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
215 | return (-1); | |
216 | ||
217 | cupsFilePrintf(fp, | |
218 | "CUPS Self-Signed Certificate\n" | |
219 | /* Enter key and certificate label */ | |
220 | "r\n" /* Generate RSA key pair */ | |
221 | "2048\n" /* Key size in bits */ | |
222 | "y\n" /* OK (y = yes) */ | |
223 | "b\n" /* Usage (b=signing/encryption) */ | |
224 | "s\n" /* Sign with SHA1 */ | |
225 | "y\n" /* OK (y = yes) */ | |
226 | "%s\n" /* Common name */ | |
227 | "\n" /* Country (default) */ | |
228 | "\n" /* Organization (default) */ | |
229 | "\n" /* Organizational unit (default) */ | |
230 | "\n" /* State/Province (default) */ | |
231 | "\n" /* Email address */ | |
232 | "y\n", /* OK (y = yes) */ | |
233 | common_name); | |
234 | cupsFileClose(fp); | |
235 | ||
236 | snprintf(keychain, sizeof(keychain), "k=%s", path); | |
237 | ||
238 | argv[0] = "certtool"; | |
239 | argv[1] = "c"; | |
240 | argv[2] = keychain; | |
241 | argv[3] = NULL; | |
242 | ||
7d58a105 MS |
243 | snprintf(days, sizeof(days), "CERTTOOL_EXPIRATION_DAYS=%d", (int)((expiration_date - time(NULL) + 86399) / 86400)); |
244 | envp[0] = days; | |
245 | for (i = 0; i < (int)(sizeof(envp) / sizeof(envp[0]) - 2) && environ[i]; i ++) | |
246 | envp[i + 1] = environ[i]; | |
247 | envp[i] = NULL; | |
248 | ||
41e0907c MS |
249 | posix_spawn_file_actions_t actions; /* File actions */ |
250 | ||
251 | posix_spawn_file_actions_init(&actions); | |
252 | posix_spawn_file_actions_addclose(&actions, 0); | |
253 | posix_spawn_file_actions_addopen(&actions, 0, infofile, O_RDONLY, 0); | |
f93b32b6 MS |
254 | posix_spawn_file_actions_addclose(&actions, 1); |
255 | posix_spawn_file_actions_addopen(&actions, 1, "/dev/null", O_WRONLY, 0); | |
256 | posix_spawn_file_actions_addclose(&actions, 2); | |
257 | posix_spawn_file_actions_addopen(&actions, 2, "/dev/null", O_WRONLY, 0); | |
41e0907c | 258 | |
7d58a105 | 259 | if (posix_spawn(&pid, command, &actions, NULL, argv, envp)) |
41e0907c MS |
260 | { |
261 | unlink(infofile); | |
262 | return (-1); | |
263 | } | |
264 | ||
265 | posix_spawn_file_actions_destroy(&actions); | |
266 | ||
267 | unlink(infofile); | |
268 | ||
269 | while (waitpid(pid, &status, 0) < 0) | |
270 | if (errno != EINTR) | |
271 | { | |
272 | status = -1; | |
273 | break; | |
274 | } | |
275 | ||
276 | return (!status); | |
eb66bc71 | 277 | #endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
278 | } |
279 | ||
280 | ||
281 | /* | |
282 | * 'cupsSetServerCredentials()' - Set the default server credentials. | |
283 | * | |
284 | * Note: The server credentials are used by all threads in the running process. | |
285 | * This function is threadsafe. | |
286 | * | |
e1f19878 | 287 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
288 | */ |
289 | ||
290 | int /* O - 1 on success, 0 on failure */ | |
291 | cupsSetServerCredentials( | |
f93b32b6 | 292 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
293 | const char *common_name, /* I - Default common name for server */ |
294 | int auto_create) /* I - 1 = automatically create self-signed certificates */ | |
295 | { | |
a27a134a MS |
296 | DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create)); |
297 | ||
eb66bc71 | 298 | #ifdef HAVE_SECKEYCHAINOPEN |
f93b32b6 | 299 | char filename[1024]; /* Filename for keychain */ |
c0459938 | 300 | SecKeychainRef keychain = NULL;/* Temporary keychain */ |
3af9ac9e | 301 | |
c0459938 | 302 | |
f93b32b6 | 303 | if (!path) |
005f7f1f | 304 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 305 | |
c0459938 MS |
306 | if (SecKeychainOpen(path, &keychain) != noErr) |
307 | { | |
308 | /* TODO: Set cups last error string */ | |
a27a134a | 309 | DEBUG_puts("1cupsSetServerCredentials: Unable to open keychain, returning 0."); |
c0459938 MS |
310 | return (0); |
311 | } | |
312 | ||
313 | _cupsMutexLock(&tls_mutex); | |
314 | ||
315 | /* | |
316 | * Close any keychain that is currently open... | |
317 | */ | |
318 | ||
319 | if (tls_keychain) | |
320 | CFRelease(tls_keychain); | |
321 | ||
41e0907c MS |
322 | if (tls_keypath) |
323 | _cupsStrFree(tls_keypath); | |
324 | ||
c0459938 MS |
325 | if (tls_common_name) |
326 | _cupsStrFree(tls_common_name); | |
327 | ||
328 | /* | |
329 | * Save the new keychain... | |
330 | */ | |
331 | ||
332 | tls_keychain = keychain; | |
41e0907c | 333 | tls_keypath = _cupsStrAlloc(path); |
c0459938 MS |
334 | tls_auto_create = auto_create; |
335 | tls_common_name = _cupsStrAlloc(common_name); | |
336 | ||
337 | _cupsMutexUnlock(&tls_mutex); | |
338 | ||
a27a134a | 339 | DEBUG_puts("1cupsSetServerCredentials: Opened keychain, returning 1."); |
c0459938 | 340 | return (1); |
eb66bc71 MS |
341 | |
342 | #else | |
a27a134a | 343 | DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0."); |
eb66bc71 MS |
344 | return (0); |
345 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
3af9ac9e MS |
346 | } |
347 | ||
2c85b752 MS |
348 | |
349 | /* | |
350 | * 'httpCopyCredentials()' - Copy the credentials associated with the peer in | |
351 | * an encrypted connection. | |
352 | * | |
353 | * @since CUPS 1.5/OS X 10.7@ | |
354 | */ | |
355 | ||
356 | int /* O - Status of call (0 = success) */ | |
357 | httpCopyCredentials( | |
358 | http_t *http, /* I - Connection to server */ | |
359 | cups_array_t **credentials) /* O - Array of credentials */ | |
360 | { | |
361 | OSStatus error; /* Error code */ | |
362 | SecTrustRef peerTrust; /* Peer trust reference */ | |
363 | CFIndex count; /* Number of credentials */ | |
364 | SecCertificateRef secCert; /* Certificate reference */ | |
365 | CFDataRef data; /* Certificate data */ | |
366 | int i; /* Looping var */ | |
367 | ||
368 | ||
376d7c69 MS |
369 | DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", http, credentials)); |
370 | ||
2c85b752 MS |
371 | if (credentials) |
372 | *credentials = NULL; | |
373 | ||
374 | if (!http || !http->tls || !credentials) | |
375 | return (-1); | |
376 | ||
377 | if (!(error = SSLCopyPeerTrust(http->tls, &peerTrust)) && peerTrust) | |
378 | { | |
376d7c69 MS |
379 | DEBUG_printf(("2httpCopyCredentials: Peer provided %d certificates.", (int)SecTrustGetCertificateCount(peerTrust))); |
380 | ||
2c85b752 MS |
381 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) |
382 | { | |
383 | count = SecTrustGetCertificateCount(peerTrust); | |
384 | ||
385 | for (i = 0; i < count; i ++) | |
386 | { | |
387 | secCert = SecTrustGetCertificateAtIndex(peerTrust, i); | |
376d7c69 MS |
388 | |
389 | #ifdef DEBUG | |
390 | CFStringRef cf_name = SecCertificateCopySubjectSummary(secCert); | |
391 | char name[1024]; | |
392 | if (cf_name) | |
393 | CFStringGetCString(cf_name, name, sizeof(name), kCFStringEncodingUTF8); | |
394 | else | |
395 | strlcpy(name, "unknown", sizeof(name)); | |
396 | ||
397 | DEBUG_printf(("2httpCopyCredentials: Certificate %d name is \"%s\".", i, name)); | |
398 | #endif /* DEBUG */ | |
399 | ||
88f1e9c8 | 400 | if ((data = SecCertificateCopyData(secCert)) != NULL) |
2c85b752 | 401 | { |
376d7c69 MS |
402 | DEBUG_printf(("2httpCopyCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); |
403 | ||
7e86f2f6 | 404 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); |
2c85b752 MS |
405 | CFRelease(data); |
406 | } | |
407 | } | |
408 | } | |
409 | ||
410 | CFRelease(peerTrust); | |
411 | } | |
412 | ||
413 | return (error); | |
414 | } | |
415 | ||
416 | ||
417 | /* | |
418 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
419 | */ | |
420 | ||
421 | http_tls_credentials_t /* O - Internal credentials */ | |
422 | _httpCreateCredentials( | |
423 | cups_array_t *credentials) /* I - Array of credentials */ | |
424 | { | |
425 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
426 | SecCertificateRef secCert; /* Certificate reference */ | |
2c85b752 MS |
427 | http_credential_t *credential; /* Credential data */ |
428 | ||
429 | ||
430 | if (!credentials) | |
431 | return (NULL); | |
432 | ||
433 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
434 | cupsArrayCount(credentials), | |
435 | &kCFTypeArrayCallBacks)) == NULL) | |
436 | return (NULL); | |
437 | ||
438 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
439 | credential; | |
440 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
441 | { | |
9653cfdf | 442 | if ((secCert = http_cdsa_create_credential(credential)) != NULL) |
2c85b752 | 443 | { |
9653cfdf MS |
444 | CFArrayAppendValue(peerCerts, secCert); |
445 | CFRelease(secCert); | |
2c85b752 MS |
446 | } |
447 | } | |
448 | ||
449 | return (peerCerts); | |
450 | } | |
451 | ||
452 | ||
3af9ac9e | 453 | /* |
524c65e6 | 454 | * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name. |
3af9ac9e | 455 | * |
e1f19878 | 456 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
457 | */ |
458 | ||
524c65e6 MS |
459 | int /* O - 1 if valid, 0 otherwise */ |
460 | httpCredentialsAreValidForName( | |
461 | cups_array_t *credentials, /* I - Credentials */ | |
462 | const char *common_name) /* I - Name to check */ | |
463 | { | |
464 | SecCertificateRef secCert; /* Certificate reference */ | |
465 | CFStringRef cfcert_name = NULL; | |
466 | /* Certificate's common name (CF string) */ | |
467 | char cert_name[256]; /* Certificate's common name (C string) */ | |
468 | int valid = 1; /* Valid name? */ | |
469 | ||
470 | ||
471 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
472 | return (0); | |
473 | ||
474 | /* | |
475 | * Compare the common names... | |
476 | */ | |
477 | ||
478 | if ((cfcert_name = SecCertificateCopySubjectSummary(secCert)) == NULL) | |
479 | { | |
480 | /* | |
481 | * Can't get common name, cannot be valid... | |
482 | */ | |
483 | ||
484 | valid = 0; | |
485 | } | |
486 | else if (CFStringGetCString(cfcert_name, cert_name, sizeof(cert_name), kCFStringEncodingUTF8) && | |
487 | _cups_strcasecmp(common_name, cert_name)) | |
488 | { | |
489 | /* | |
490 | * Not an exact match for the common name, check for wildcard certs... | |
491 | */ | |
492 | ||
493 | const char *domain = strchr(common_name, '.'); | |
494 | /* Domain in common name */ | |
495 | ||
496 | if (strncmp(cert_name, "*.", 2) || !domain || _cups_strcasecmp(domain, cert_name + 1)) | |
497 | { | |
498 | /* | |
499 | * Not a wildcard match. | |
500 | */ | |
501 | ||
502 | /* TODO: Check subject alternate names */ | |
503 | valid = 0; | |
504 | } | |
505 | } | |
506 | ||
507 | if (cfcert_name) | |
508 | CFRelease(cfcert_name); | |
509 | ||
510 | CFRelease(secCert); | |
511 | ||
512 | return (valid); | |
513 | } | |
514 | ||
515 | ||
516 | /* | |
517 | * 'httpCredentialsGetTrust()' - Return the trust of credentials. | |
518 | * | |
e1f19878 | 519 | * @since CUPS 2.0/OS X 10.10@ |
524c65e6 MS |
520 | */ |
521 | ||
522 | http_trust_t /* O - Level of trust */ | |
523 | httpCredentialsGetTrust( | |
376d7c69 MS |
524 | cups_array_t *credentials, /* I - Credentials */ |
525 | const char *common_name) /* I - Common name for trust lookup */ | |
3af9ac9e | 526 | { |
9653cfdf | 527 | SecCertificateRef secCert; /* Certificate reference */ |
524c65e6 MS |
528 | http_trust_t trust = HTTP_TRUST_OK; |
529 | /* Trusted? */ | |
376d7c69 | 530 | cups_array_t *tcreds = NULL; /* Trusted credentials */ |
9653cfdf MS |
531 | _cups_globals_t *cg = _cupsGlobals(); |
532 | /* Per-thread globals */ | |
3af9ac9e | 533 | |
9653cfdf | 534 | |
376d7c69 | 535 | if (!common_name) |
524c65e6 | 536 | return (HTTP_TRUST_UNKNOWN); |
376d7c69 | 537 | |
9653cfdf | 538 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
524c65e6 | 539 | return (HTTP_TRUST_UNKNOWN); |
9653cfdf | 540 | |
3abb875b MS |
541 | if (cg->any_root < 0) |
542 | _cupsSetDefaults(); | |
543 | ||
376d7c69 | 544 | /* |
88f1e9c8 | 545 | * Look this common name up in the default keychains... |
376d7c69 MS |
546 | */ |
547 | ||
88f1e9c8 | 548 | httpLoadCredentials(NULL, &tcreds, common_name); |
376d7c69 MS |
549 | |
550 | if (tcreds) | |
551 | { | |
552 | char credentials_str[1024], /* String for incoming credentials */ | |
553 | tcreds_str[1024]; /* String for saved credentials */ | |
554 | ||
555 | httpCredentialsString(credentials, credentials_str, sizeof(credentials_str)); | |
556 | httpCredentialsString(tcreds, tcreds_str, sizeof(tcreds_str)); | |
557 | ||
558 | if (strcmp(credentials_str, tcreds_str)) | |
559 | { | |
560 | /* | |
561 | * Credentials don't match, let's look at the expiration date of the new | |
562 | * credentials and allow if the new ones have a later expiration... | |
563 | */ | |
564 | ||
565 | if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds) || | |
524c65e6 | 566 | !httpCredentialsAreValidForName(credentials, common_name)) |
376d7c69 MS |
567 | { |
568 | /* | |
569 | * Either the new credentials are not newly issued, or the common name | |
570 | * does not match the issued certificate... | |
571 | */ | |
572 | ||
524c65e6 | 573 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 574 | } |
524c65e6 | 575 | else if (httpCredentialsGetExpiration(tcreds) < time(NULL)) |
376d7c69 MS |
576 | { |
577 | /* | |
524c65e6 | 578 | * Save the renewed credentials... |
376d7c69 MS |
579 | */ |
580 | ||
524c65e6 MS |
581 | trust = HTTP_TRUST_RENEWED; |
582 | ||
583 | httpSaveCredentials(NULL, credentials, common_name); | |
376d7c69 MS |
584 | } |
585 | } | |
586 | ||
587 | httpFreeCredentials(tcreds); | |
588 | } | |
f51f3773 | 589 | else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name)) |
524c65e6 | 590 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 591 | |
9653cfdf | 592 | if (!cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent())) |
524c65e6 | 593 | trust = HTTP_TRUST_EXPIRED; |
25731360 | 594 | else if (!cg->any_root && cupsArrayCount(credentials) == 1) |
524c65e6 | 595 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 596 | |
9653cfdf MS |
597 | CFRelease(secCert); |
598 | ||
524c65e6 | 599 | return (trust); |
3af9ac9e MS |
600 | } |
601 | ||
602 | ||
603 | /* | |
604 | * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials. | |
605 | * | |
e1f19878 | 606 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
607 | */ |
608 | ||
609 | time_t /* O - Expiration date of credentials */ | |
610 | httpCredentialsGetExpiration( | |
611 | cups_array_t *credentials) /* I - Credentials */ | |
612 | { | |
9653cfdf MS |
613 | SecCertificateRef secCert; /* Certificate reference */ |
614 | time_t expiration; /* Expiration date */ | |
3af9ac9e | 615 | |
9653cfdf MS |
616 | |
617 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
618 | return (0); | |
619 | ||
376d7c69 | 620 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); |
9653cfdf MS |
621 | |
622 | CFRelease(secCert); | |
623 | ||
624 | return (expiration); | |
3af9ac9e MS |
625 | } |
626 | ||
627 | ||
72d05bc9 MS |
628 | /* |
629 | * 'httpCredentialsString()' - Return a string representing the credentials. | |
630 | * | |
e1f19878 | 631 | * @since CUPS 2.0/OS X 10.10@ |
72d05bc9 MS |
632 | */ |
633 | ||
634 | size_t /* O - Total size of credentials string */ | |
635 | httpCredentialsString( | |
636 | cups_array_t *credentials, /* I - Credentials */ | |
637 | char *buffer, /* I - Buffer or @code NULL@ */ | |
638 | size_t bufsize) /* I - Size of buffer */ | |
639 | { | |
376d7c69 | 640 | http_credential_t *first; /* First certificate */ |
9653cfdf | 641 | SecCertificateRef secCert; /* Certificate reference */ |
9653cfdf MS |
642 | |
643 | ||
376d7c69 MS |
644 | DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", credentials, buffer, CUPS_LLCAST bufsize)); |
645 | ||
9653cfdf MS |
646 | if (!buffer) |
647 | return (0); | |
72d05bc9 MS |
648 | |
649 | if (buffer && bufsize > 0) | |
650 | *buffer = '\0'; | |
651 | ||
376d7c69 MS |
652 | if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL && |
653 | (secCert = http_cdsa_create_credential(first)) != NULL) | |
9653cfdf | 654 | { |
376d7c69 MS |
655 | CFStringRef cf_name; /* CF common name string */ |
656 | char name[256]; /* Common name associated with cert */ | |
657 | time_t expiration; /* Expiration date of cert */ | |
658 | _cups_md5_state_t md5_state; /* MD5 state */ | |
659 | unsigned char md5_digest[16]; /* MD5 result */ | |
660 | ||
661 | if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL) | |
9653cfdf | 662 | { |
376d7c69 MS |
663 | CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8); |
664 | CFRelease(cf_name); | |
9653cfdf | 665 | } |
376d7c69 MS |
666 | else |
667 | strlcpy(name, "unknown", sizeof(name)); | |
668 | ||
669 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); | |
670 | ||
671 | _cupsMD5Init(&md5_state); | |
672 | _cupsMD5Append(&md5_state, first->data, (int)first->datalen); | |
673 | _cupsMD5Finish(&md5_state, md5_digest); | |
674 | ||
675 | 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]); | |
9653cfdf MS |
676 | |
677 | CFRelease(secCert); | |
678 | } | |
679 | ||
376d7c69 MS |
680 | DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer)); |
681 | ||
9653cfdf | 682 | return (strlen(buffer)); |
72d05bc9 MS |
683 | } |
684 | ||
685 | ||
2c85b752 MS |
686 | /* |
687 | * '_httpFreeCredentials()' - Free internal credentials. | |
688 | */ | |
689 | ||
690 | void | |
691 | _httpFreeCredentials( | |
692 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
693 | { | |
694 | if (!credentials) | |
695 | return; | |
696 | ||
697 | CFRelease(credentials); | |
698 | } | |
699 | ||
700 | ||
72d05bc9 MS |
701 | /* |
702 | * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file. | |
703 | * | |
e1f19878 | 704 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
705 | */ |
706 | ||
dafebafd | 707 | int /* O - 0 on success, -1 on error */ |
72d05bc9 | 708 | httpLoadCredentials( |
f93b32b6 | 709 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
710 | cups_array_t **credentials, /* IO - Credentials */ |
711 | const char *common_name) /* I - Common name for credentials */ | |
712 | { | |
88f1e9c8 | 713 | #ifdef HAVE_SECKEYCHAINOPEN |
dafebafd | 714 | OSStatus err; /* Error info */ |
88f1e9c8 | 715 | char filename[1024]; /* Filename for keychain */ |
dafebafd MS |
716 | SecKeychainRef keychain = NULL;/* Keychain reference */ |
717 | SecIdentitySearchRef search = NULL; /* Search reference */ | |
88f1e9c8 MS |
718 | SecCertificateRef cert = NULL; /* Certificate */ |
719 | CFDataRef data; /* Certificate data */ | |
dafebafd MS |
720 | SecPolicyRef policy = NULL; /* Policy ref */ |
721 | CFStringRef cfcommon_name = NULL; | |
722 | /* Server name */ | |
723 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
724 | CFArrayRef list = NULL; /* Keychain list */ | |
725 | ||
726 | ||
88f1e9c8 MS |
727 | DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name)); |
728 | ||
729 | if (!credentials) | |
730 | return (-1); | |
731 | ||
732 | *credentials = NULL; | |
733 | ||
734 | if (!path) | |
005f7f1f | 735 | path = http_cdsa_default_path(filename, sizeof(filename)); |
88f1e9c8 | 736 | |
88f1e9c8 | 737 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
dafebafd MS |
738 | goto cleanup; |
739 | ||
740 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); | |
741 | ||
742 | policy = SecPolicyCreateSSL(1, cfcommon_name); | |
743 | ||
744 | if (cfcommon_name) | |
745 | CFRelease(cfcommon_name); | |
746 | ||
747 | if (!policy) | |
748 | goto cleanup; | |
749 | ||
750 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
751 | goto cleanup; | |
752 | ||
88f1e9c8 | 753 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks); |
dafebafd | 754 | |
88f1e9c8 | 755 | CFDictionaryAddValue(query, kSecClass, kSecClassCertificate); |
dafebafd MS |
756 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); |
757 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
758 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
759 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
760 | ||
761 | CFRelease(list); | |
762 | ||
88f1e9c8 | 763 | err = SecItemCopyMatching(query, (CFTypeRef *)&cert); |
dafebafd MS |
764 | |
765 | if (err) | |
766 | goto cleanup; | |
767 | ||
88f1e9c8 | 768 | if (CFGetTypeID(cert) != SecCertificateGetTypeID()) |
dafebafd MS |
769 | goto cleanup; |
770 | ||
88f1e9c8 MS |
771 | if ((data = SecCertificateCopyData(cert)) != NULL) |
772 | { | |
773 | DEBUG_printf(("1httpLoadCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); | |
774 | ||
775 | *credentials = cupsArrayNew(NULL, NULL); | |
776 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); | |
777 | CFRelease(data); | |
778 | } | |
dafebafd MS |
779 | |
780 | cleanup : | |
781 | ||
782 | if (keychain) | |
783 | CFRelease(keychain); | |
784 | if (search) | |
785 | CFRelease(search); | |
88f1e9c8 MS |
786 | if (cert) |
787 | CFRelease(cert); | |
dafebafd MS |
788 | if (policy) |
789 | CFRelease(policy); | |
790 | if (query) | |
791 | CFRelease(query); | |
792 | ||
88f1e9c8 MS |
793 | DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1)); |
794 | ||
795 | return (*credentials ? 0 : -1); | |
796 | ||
797 | #else | |
798 | (void)path; | |
799 | (void)credentials; | |
800 | (void)common_name; | |
801 | ||
802 | return (-1); | |
803 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
72d05bc9 MS |
804 | } |
805 | ||
806 | ||
72d05bc9 MS |
807 | /* |
808 | * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file. | |
809 | * | |
e1f19878 | 810 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
811 | */ |
812 | ||
813 | int /* O - -1 on error, 0 on success */ | |
814 | httpSaveCredentials( | |
f93b32b6 | 815 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
816 | cups_array_t *credentials, /* I - Credentials */ |
817 | const char *common_name) /* I - Common name for credentials */ | |
818 | { | |
eb66bc71 | 819 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 820 | int ret = -1; /* Return value */ |
41e0907c | 821 | OSStatus err; /* Error info */ |
88f1e9c8 MS |
822 | char filename[1024]; /* Filename for keychain */ |
823 | SecKeychainRef keychain = NULL;/* Keychain reference */ | |
41e0907c | 824 | SecIdentitySearchRef search = NULL; /* Search reference */ |
88f1e9c8 | 825 | SecCertificateRef cert = NULL; /* Certificate */ |
88f1e9c8 | 826 | CFMutableDictionaryRef attrs = NULL; /* Attributes for add */ |
41e0907c MS |
827 | CFArrayRef list = NULL; /* Keychain list */ |
828 | ||
829 | ||
88f1e9c8 MS |
830 | DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name)); |
831 | if (!credentials) | |
41e0907c MS |
832 | goto cleanup; |
833 | ||
524c65e6 MS |
834 | if (!httpCredentialsAreValidForName(credentials, common_name)) |
835 | { | |
836 | DEBUG_puts("1httpSaveCredentials: Common name does not match."); | |
837 | return (-1); | |
838 | } | |
839 | ||
88f1e9c8 MS |
840 | if ((cert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
841 | { | |
842 | DEBUG_puts("1httpSaveCredentials: Unable to create certificate."); | |
41e0907c | 843 | goto cleanup; |
88f1e9c8 | 844 | } |
41e0907c | 845 | |
88f1e9c8 | 846 | if (!path) |
005f7f1f | 847 | path = http_cdsa_default_path(filename, sizeof(filename)); |
2c85b752 | 848 | |
88f1e9c8 | 849 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
2c85b752 | 850 | { |
88f1e9c8 MS |
851 | DEBUG_printf(("1httpSaveCredentials: SecKeychainOpen returned %d.", (int)err)); |
852 | goto cleanup; | |
2c85b752 | 853 | } |
2c85b752 | 854 | |
88f1e9c8 | 855 | if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL) |
2c85b752 | 856 | { |
88f1e9c8 MS |
857 | DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains."); |
858 | goto cleanup; | |
2c85b752 | 859 | } |
88f1e9c8 | 860 | |
88f1e9c8 MS |
861 | if ((attrs = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL) |
862 | { | |
863 | DEBUG_puts("1httpSaveCredentials: Unable to create dictionary."); | |
864 | goto cleanup; | |
2c85b752 MS |
865 | } |
866 | ||
88f1e9c8 | 867 | CFDictionaryAddValue(attrs, kSecClass, kSecClassCertificate); |
88f1e9c8 MS |
868 | CFDictionaryAddValue(attrs, kSecValueRef, cert); |
869 | CFDictionaryAddValue(attrs, kSecMatchSearchList, list); | |
2c85b752 | 870 | |
88f1e9c8 | 871 | /* Note: SecItemAdd consumes "attrs"... */ |
524c65e6 | 872 | err = SecItemAdd(attrs, NULL); |
88f1e9c8 | 873 | DEBUG_printf(("1httpSaveCredentials: SecItemAdd returned %d.", (int)err)); |
2c85b752 | 874 | |
88f1e9c8 | 875 | cleanup : |
2c85b752 | 876 | |
88f1e9c8 MS |
877 | if (list) |
878 | CFRelease(list); | |
879 | if (keychain) | |
880 | CFRelease(keychain); | |
881 | if (search) | |
882 | CFRelease(search); | |
883 | if (cert) | |
884 | CFRelease(cert); | |
2c85b752 | 885 | |
88f1e9c8 | 886 | DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret)); |
2c85b752 | 887 | |
88f1e9c8 | 888 | return (ret); |
2c85b752 | 889 | |
88f1e9c8 MS |
890 | #else |
891 | (void)path; | |
892 | (void)credentials; | |
893 | (void)common_name; | |
2c85b752 | 894 | |
88f1e9c8 MS |
895 | return (-1); |
896 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 MS |
897 | } |
898 | ||
899 | ||
900 | /* | |
25731360 | 901 | * '_httpTLSInitialize()' - Initialize the TLS stack. |
2c85b752 MS |
902 | */ |
903 | ||
25731360 MS |
904 | void |
905 | _httpTLSInitialize(void) | |
2c85b752 MS |
906 | { |
907 | /* | |
908 | * Nothing to do... | |
909 | */ | |
910 | } | |
911 | ||
912 | ||
913 | /* | |
25731360 | 914 | * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes. |
2c85b752 MS |
915 | */ |
916 | ||
25731360 MS |
917 | size_t |
918 | _httpTLSPending(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
919 | { |
920 | size_t bytes; /* Bytes that are available */ | |
921 | ||
922 | ||
923 | if (!SSLGetBufferedReadSize(http->tls, &bytes)) | |
924 | return (bytes); | |
925 | ||
926 | return (0); | |
927 | } | |
928 | ||
929 | ||
930 | /* | |
25731360 | 931 | * '_httpTLSRead()' - Read from a SSL/TLS connection. |
2c85b752 MS |
932 | */ |
933 | ||
25731360 MS |
934 | int /* O - Bytes read */ |
935 | _httpTLSRead(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
936 | char *buf, /* I - Buffer to store data */ |
937 | int len) /* I - Length of buffer */ | |
938 | { | |
939 | int result; /* Return value */ | |
940 | OSStatus error; /* Error info */ | |
941 | size_t processed; /* Number of bytes processed */ | |
942 | ||
943 | ||
7e86f2f6 | 944 | error = SSLRead(http->tls, buf, (size_t)len, &processed); |
25731360 | 945 | DEBUG_printf(("6_httpTLSRead: error=%d, processed=%d", (int)error, |
2c85b752 MS |
946 | (int)processed)); |
947 | switch (error) | |
948 | { | |
949 | case 0 : | |
950 | result = (int)processed; | |
951 | break; | |
952 | ||
953 | case errSSLWouldBlock : | |
954 | if (processed) | |
955 | result = (int)processed; | |
956 | else | |
957 | { | |
958 | result = -1; | |
959 | errno = EINTR; | |
960 | } | |
961 | break; | |
962 | ||
963 | case errSSLClosedGraceful : | |
964 | default : | |
965 | if (processed) | |
966 | result = (int)processed; | |
967 | else | |
968 | { | |
969 | result = -1; | |
970 | errno = EPIPE; | |
971 | } | |
972 | break; | |
973 | } | |
974 | ||
975 | return (result); | |
976 | } | |
977 | ||
978 | ||
63aefcd5 MS |
979 | /* |
980 | * '_httpTLSSetOptions()' - Set TLS protocol and cipher suite options. | |
981 | */ | |
982 | ||
983 | void | |
984 | _httpTLSSetOptions(int options) /* I - Options */ | |
985 | { | |
986 | tls_options = options; | |
987 | } | |
988 | ||
989 | ||
2c85b752 | 990 | /* |
25731360 | 991 | * '_httpTLSStart()' - Set up SSL/TLS support on a connection. |
2c85b752 MS |
992 | */ |
993 | ||
25731360 MS |
994 | int /* O - 0 on success, -1 on failure */ |
995 | _httpTLSStart(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
996 | { |
997 | char hostname[256], /* Hostname */ | |
998 | *hostptr; /* Pointer into hostname */ | |
999 | _cups_globals_t *cg = _cupsGlobals(); | |
1000 | /* Pointer to library globals */ | |
1001 | OSStatus error; /* Error code */ | |
1002 | const char *message = NULL;/* Error message */ | |
1003 | cups_array_t *credentials; /* Credentials array */ | |
1004 | cups_array_t *names; /* CUPS distinguished names */ | |
1005 | CFArrayRef dn_array; /* CF distinguished names array */ | |
1006 | CFIndex count; /* Number of credentials */ | |
1007 | CFDataRef data; /* Certificate data */ | |
1008 | int i; /* Looping var */ | |
1009 | http_credential_t *credential; /* Credential data */ | |
1010 | ||
1011 | ||
b37d45d9 MS |
1012 | DEBUG_printf(("3_httpTLSStart(http=%p)", http)); |
1013 | ||
1014 | if (tls_options < 0) | |
1015 | { | |
1016 | DEBUG_puts("4_httpTLSStart: Setting defaults."); | |
1017 | _cupsSetDefaults(); | |
1018 | DEBUG_printf(("4_httpTLSStart: tls_options=%x", tls_options)); | |
1019 | } | |
2c85b752 | 1020 | |
c913d726 | 1021 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 1022 | if (http->mode == _HTTP_MODE_SERVER && !tls_keychain) |
c913d726 MS |
1023 | #else |
1024 | if (http->mode == _HTTP_MODE_SERVER) | |
1025 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 | 1026 | { |
25731360 | 1027 | DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called."); |
41e0907c MS |
1028 | http->error = errno = EINVAL; |
1029 | http->status = HTTP_STATUS_ERROR; | |
1030 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Server credentials not set."), 1); | |
2c85b752 | 1031 | |
41e0907c | 1032 | return (-1); |
2c85b752 MS |
1033 | } |
1034 | ||
72d05bc9 | 1035 | if ((http->tls = SSLCreateContext(kCFAllocatorDefault, http->mode == _HTTP_MODE_CLIENT ? kSSLClientSide : kSSLServerSide, kSSLStreamType)) == NULL) |
2c85b752 | 1036 | { |
25731360 | 1037 | DEBUG_puts("4_httpTLSStart: SSLCreateContext failed."); |
2c85b752 MS |
1038 | http->error = errno = ENOMEM; |
1039 | http->status = HTTP_STATUS_ERROR; | |
1040 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
1041 | ||
1042 | return (-1); | |
1043 | } | |
1044 | ||
1045 | error = SSLSetConnection(http->tls, http); | |
25731360 | 1046 | DEBUG_printf(("4_httpTLSStart: SSLSetConnection, error=%d", (int)error)); |
2c85b752 MS |
1047 | |
1048 | if (!error) | |
1049 | { | |
1050 | error = SSLSetIOFuncs(http->tls, http_cdsa_read, http_cdsa_write); | |
25731360 | 1051 | DEBUG_printf(("4_httpTLSStart: SSLSetIOFuncs, error=%d", (int)error)); |
2c85b752 MS |
1052 | } |
1053 | ||
1054 | if (!error) | |
1055 | { | |
1056 | error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth, | |
1057 | true); | |
63aefcd5 MS |
1058 | DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", (int)error)); |
1059 | } | |
1060 | ||
1061 | if (!error) | |
1062 | { | |
ee6226a5 MS |
1063 | SSLProtocol minProtocol; |
1064 | ||
1065 | if (tls_options & _HTTP_TLS_DENY_TLS10) | |
1066 | minProtocol = kTLSProtocol11; | |
1067 | else if (tls_options & _HTTP_TLS_ALLOW_SSL3) | |
1068 | minProtocol = kSSLProtocol3; | |
1069 | else | |
1070 | minProtocol = kTLSProtocol1; | |
1071 | ||
1072 | error = SSLSetProtocolVersionMin(http->tls, minProtocol); | |
1073 | DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMin(%d), error=%d", minProtocol, (int)error)); | |
63aefcd5 MS |
1074 | } |
1075 | ||
ee6226a5 | 1076 | # if HAVE_SSLSETENABLEDCIPHERS |
63aefcd5 MS |
1077 | if (!error) |
1078 | { | |
1079 | SSLCipherSuite supported[100]; /* Supported cipher suites */ | |
1080 | size_t num_supported; /* Number of supported cipher suites */ | |
1081 | SSLCipherSuite enabled[100]; /* Cipher suites to enable */ | |
1082 | size_t num_enabled; /* Number of cipher suites to enable */ | |
1083 | ||
1084 | num_supported = sizeof(supported) / sizeof(supported[0]); | |
1085 | error = SSLGetSupportedCiphers(http->tls, supported, &num_supported); | |
1086 | ||
1087 | if (!error) | |
1088 | { | |
1089 | DEBUG_printf(("4_httpTLSStart: %d cipher suites supported.", (int)num_supported)); | |
1090 | ||
1091 | for (i = 0, num_enabled = 0; i < (int)num_supported && num_enabled < (sizeof(enabled) / sizeof(enabled[0])); i ++) | |
1092 | { | |
1093 | switch (supported[i]) | |
1094 | { | |
1095 | /* Obviously insecure cipher suites that we never want to use */ | |
1096 | case SSL_NULL_WITH_NULL_NULL : | |
1097 | case SSL_RSA_WITH_NULL_MD5 : | |
1098 | case SSL_RSA_WITH_NULL_SHA : | |
1099 | case SSL_RSA_EXPORT_WITH_RC4_40_MD5 : | |
1100 | case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 : | |
1101 | case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1102 | case SSL_RSA_WITH_DES_CBC_SHA : | |
1103 | case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1104 | case SSL_DH_DSS_WITH_DES_CBC_SHA : | |
1105 | case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1106 | case SSL_DH_RSA_WITH_DES_CBC_SHA : | |
1107 | case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1108 | case SSL_DHE_DSS_WITH_DES_CBC_SHA : | |
1109 | case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1110 | case SSL_DHE_RSA_WITH_DES_CBC_SHA : | |
1111 | case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5 : | |
1112 | case SSL_DH_anon_WITH_RC4_128_MD5 : | |
1113 | case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA : | |
1114 | case SSL_DH_anon_WITH_DES_CBC_SHA : | |
1115 | case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA : | |
1116 | case SSL_FORTEZZA_DMS_WITH_NULL_SHA : | |
1117 | case TLS_DH_anon_WITH_AES_128_CBC_SHA : | |
1118 | case TLS_DH_anon_WITH_AES_256_CBC_SHA : | |
1119 | case TLS_ECDH_ECDSA_WITH_NULL_SHA : | |
1120 | case TLS_ECDHE_RSA_WITH_NULL_SHA : | |
1121 | case TLS_ECDH_anon_WITH_NULL_SHA : | |
1122 | case TLS_ECDH_anon_WITH_RC4_128_SHA : | |
1123 | case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA : | |
1124 | case TLS_ECDH_anon_WITH_AES_128_CBC_SHA : | |
1125 | case TLS_ECDH_anon_WITH_AES_256_CBC_SHA : | |
1126 | case TLS_RSA_WITH_NULL_SHA256 : | |
1127 | case TLS_DH_anon_WITH_AES_128_CBC_SHA256 : | |
1128 | case TLS_DH_anon_WITH_AES_256_CBC_SHA256 : | |
1129 | case TLS_PSK_WITH_NULL_SHA : | |
1130 | case TLS_DHE_PSK_WITH_NULL_SHA : | |
1131 | case TLS_RSA_PSK_WITH_NULL_SHA : | |
1132 | case TLS_DH_anon_WITH_AES_128_GCM_SHA256 : | |
1133 | case TLS_DH_anon_WITH_AES_256_GCM_SHA384 : | |
1134 | case TLS_PSK_WITH_NULL_SHA256 : | |
1135 | case TLS_PSK_WITH_NULL_SHA384 : | |
1136 | case TLS_DHE_PSK_WITH_NULL_SHA256 : | |
1137 | case TLS_DHE_PSK_WITH_NULL_SHA384 : | |
1138 | case TLS_RSA_PSK_WITH_NULL_SHA256 : | |
1139 | case TLS_RSA_PSK_WITH_NULL_SHA384 : | |
1140 | case SSL_RSA_WITH_DES_CBC_MD5 : | |
b37d45d9 | 1141 | DEBUG_printf(("4_httpTLSStart: Excluding insecure cipher suite %d", supported[i])); |
63aefcd5 MS |
1142 | break; |
1143 | ||
1144 | /* RC4 cipher suites that should only be used as a last resort */ | |
1145 | case SSL_RSA_WITH_RC4_128_MD5 : | |
1146 | case SSL_RSA_WITH_RC4_128_SHA : | |
1147 | case TLS_ECDH_ECDSA_WITH_RC4_128_SHA : | |
1148 | case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA : | |
1149 | case TLS_ECDH_RSA_WITH_RC4_128_SHA : | |
1150 | case TLS_ECDHE_RSA_WITH_RC4_128_SHA : | |
1151 | case TLS_PSK_WITH_RC4_128_SHA : | |
1152 | case TLS_DHE_PSK_WITH_RC4_128_SHA : | |
1153 | case TLS_RSA_PSK_WITH_RC4_128_SHA : | |
1154 | if (tls_options & _HTTP_TLS_ALLOW_RC4) | |
1155 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1156 | else |
1157 | DEBUG_printf(("4_httpTLSStart: Excluding RC4 cipher suite %d", supported[i])); | |
63aefcd5 MS |
1158 | break; |
1159 | ||
ee6226a5 MS |
1160 | /* DH/DHE cipher suites that are problematic with parameters < 1024 bits */ |
1161 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA : | |
1162 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA : | |
1163 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA : | |
1164 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA : | |
1165 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA : | |
1166 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA : | |
1167 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA : | |
1168 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA : | |
1169 | case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA : | |
1170 | case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA : | |
bdc4056c | 1171 | // case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA : |
ee6226a5 MS |
1172 | case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA : |
1173 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA256 : | |
1174 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA256 : | |
1175 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 : | |
1176 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 : | |
1177 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA256 : | |
1178 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA256 : | |
1179 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 : | |
1180 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 : | |
1181 | case TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA : | |
1182 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA : | |
1183 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA : | |
bdc4056c MS |
1184 | // case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 : |
1185 | // case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1186 | case TLS_DH_RSA_WITH_AES_128_GCM_SHA256 : |
1187 | case TLS_DH_RSA_WITH_AES_256_GCM_SHA384 : | |
bdc4056c MS |
1188 | // case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 : |
1189 | // case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1190 | case TLS_DH_DSS_WITH_AES_128_GCM_SHA256 : |
1191 | case TLS_DH_DSS_WITH_AES_256_GCM_SHA384 : | |
1192 | case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 : | |
1193 | case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 : | |
1194 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 : | |
1195 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 : | |
1196 | if (tls_options & _HTTP_TLS_ALLOW_DH) | |
1197 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1198 | else |
1199 | DEBUG_printf(("4_httpTLSStart: Excluding DH/DHE cipher suite %d", supported[i])); | |
ee6226a5 MS |
1200 | break; |
1201 | ||
63aefcd5 MS |
1202 | /* Anything else we'll assume is secure */ |
1203 | default : | |
1204 | enabled[num_enabled ++] = supported[i]; | |
1205 | break; | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | DEBUG_printf(("4_httpTLSStart: %d cipher suites enabled.", (int)num_enabled)); | |
1210 | error = SSLSetEnabledCiphers(http->tls, enabled, num_enabled); | |
1211 | } | |
2c85b752 | 1212 | } |
ee6226a5 | 1213 | #endif /* HAVE_SSLSETENABLEDCIPHERS */ |
2c85b752 | 1214 | |
41e0907c | 1215 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1216 | { |
41e0907c MS |
1217 | /* |
1218 | * Client: set client-side credentials, if any... | |
1219 | */ | |
1220 | ||
2c85b752 MS |
1221 | if (cg->client_cert_cb) |
1222 | { | |
1223 | error = SSLSetSessionOption(http->tls, | |
1224 | kSSLSessionOptionBreakOnCertRequested, true); | |
25731360 | 1225 | DEBUG_printf(("4_httpTLSStart: kSSLSessionOptionBreakOnCertRequested, " |
2c85b752 MS |
1226 | "error=%d", (int)error)); |
1227 | } | |
1228 | else | |
1229 | { | |
88f1e9c8 MS |
1230 | error = http_cdsa_set_credentials(http); |
1231 | DEBUG_printf(("4_httpTLSStart: http_cdsa_set_credentials, error=%d", | |
2c85b752 MS |
1232 | (int)error)); |
1233 | } | |
1234 | } | |
41e0907c MS |
1235 | else if (!error) |
1236 | { | |
1237 | /* | |
1238 | * Server: find/create a certificate for TLS... | |
1239 | */ | |
1240 | ||
1241 | if (http->fields[HTTP_FIELD_HOST][0]) | |
1242 | { | |
1243 | /* | |
1244 | * Use hostname for TLS upgrade... | |
1245 | */ | |
1246 | ||
1247 | strlcpy(hostname, http->fields[HTTP_FIELD_HOST], sizeof(hostname)); | |
1248 | } | |
1249 | else | |
1250 | { | |
1251 | /* | |
1252 | * Resolve hostname from connection address... | |
1253 | */ | |
1254 | ||
1255 | http_addr_t addr; /* Connection address */ | |
1256 | socklen_t addrlen; /* Length of address */ | |
1257 | ||
1258 | addrlen = sizeof(addr); | |
1259 | if (getsockname(http->fd, (struct sockaddr *)&addr, &addrlen)) | |
1260 | { | |
25731360 | 1261 | DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno))); |
41e0907c MS |
1262 | hostname[0] = '\0'; |
1263 | } | |
1264 | else if (httpAddrLocalhost(&addr)) | |
1265 | hostname[0] = '\0'; | |
1266 | else | |
a27a134a MS |
1267 | { |
1268 | httpAddrLookup(&addr, hostname, sizeof(hostname)); | |
25731360 | 1269 | DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname)); |
a27a134a | 1270 | } |
41e0907c MS |
1271 | } |
1272 | ||
eb66bc71 | 1273 | #ifdef HAVE_SECKEYCHAINOPEN |
a27a134a MS |
1274 | if (isdigit(hostname[0] & 255) || hostname[0] == '[') |
1275 | hostname[0] = '\0'; /* Don't allow numeric addresses */ | |
1276 | ||
41e0907c MS |
1277 | if (hostname[0]) |
1278 | http->tls_credentials = http_cdsa_copy_server(hostname); | |
1279 | else if (tls_common_name) | |
1280 | http->tls_credentials = http_cdsa_copy_server(tls_common_name); | |
1281 | ||
1282 | if (!http->tls_credentials && tls_auto_create && (hostname[0] || tls_common_name)) | |
1283 | { | |
25731360 | 1284 | DEBUG_printf(("4_httpTLSStart: Auto-create credentials for \"%s\".", hostname[0] ? hostname : tls_common_name)); |
41e0907c MS |
1285 | |
1286 | if (!cupsMakeServerCredentials(tls_keypath, hostname[0] ? hostname : tls_common_name, 0, NULL, time(NULL) + 365 * 86400)) | |
1287 | { | |
25731360 | 1288 | DEBUG_puts("4_httpTLSStart: cupsMakeServerCredentials failed."); |
41e0907c MS |
1289 | http->error = errno = EINVAL; |
1290 | http->status = HTTP_STATUS_ERROR; | |
1291 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create server credentials."), 1); | |
1292 | ||
1293 | return (-1); | |
1294 | } | |
1295 | ||
1296 | http->tls_credentials = http_cdsa_copy_server(hostname[0] ? hostname : tls_common_name); | |
1297 | } | |
eb66bc71 | 1298 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c MS |
1299 | |
1300 | if (!http->tls_credentials) | |
1301 | { | |
25731360 | 1302 | DEBUG_puts("4_httpTLSStart: Unable to find server credentials."); |
41e0907c MS |
1303 | http->error = errno = EINVAL; |
1304 | http->status = HTTP_STATUS_ERROR; | |
1305 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to find server credentials."), 1); | |
1306 | ||
1307 | return (-1); | |
1308 | } | |
1309 | ||
1310 | error = SSLSetCertificate(http->tls, http->tls_credentials); | |
1311 | ||
25731360 | 1312 | DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error)); |
41e0907c MS |
1313 | } |
1314 | ||
25731360 | 1315 | DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", http->tls_credentials)); |
2c85b752 MS |
1316 | |
1317 | /* | |
1318 | * Let the server know which hostname/domain we are trying to connect to | |
1319 | * in case it wants to serve up a certificate with a matching common name. | |
1320 | */ | |
1321 | ||
41e0907c | 1322 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1323 | { |
41e0907c MS |
1324 | /* |
1325 | * Client: get the hostname to use for TLS... | |
1326 | */ | |
1327 | ||
1328 | if (httpAddrLocalhost(http->hostaddr)) | |
1329 | { | |
1330 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
1331 | } | |
1332 | else | |
1333 | { | |
1334 | /* | |
1335 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
1336 | */ | |
1337 | ||
1338 | strlcpy(hostname, http->hostname, sizeof(hostname)); | |
1339 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
1340 | *hostptr == '.') | |
1341 | *hostptr = '\0'; | |
1342 | } | |
1343 | ||
2c85b752 MS |
1344 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); |
1345 | ||
25731360 | 1346 | DEBUG_printf(("4_httpTLSStart: SSLSetPeerDomainName, error=%d", (int)error)); |
2c85b752 MS |
1347 | } |
1348 | ||
1349 | if (!error) | |
1350 | { | |
1351 | int done = 0; /* Are we done yet? */ | |
1352 | ||
1353 | while (!error && !done) | |
1354 | { | |
1355 | error = SSLHandshake(http->tls); | |
1356 | ||
25731360 | 1357 | DEBUG_printf(("4_httpTLSStart: SSLHandshake returned %d.", (int)error)); |
2c85b752 MS |
1358 | |
1359 | switch (error) | |
1360 | { | |
1361 | case noErr : | |
1362 | done = 1; | |
1363 | break; | |
1364 | ||
1365 | case errSSLWouldBlock : | |
1366 | error = noErr; /* Force a retry */ | |
1367 | usleep(1000); /* in 1 millisecond */ | |
1368 | break; | |
1369 | ||
1370 | case errSSLServerAuthCompleted : | |
1371 | error = 0; | |
1372 | if (cg->server_cert_cb) | |
1373 | { | |
1374 | error = httpCopyCredentials(http, &credentials); | |
1375 | if (!error) | |
1376 | { | |
1377 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
1378 | cg->server_cert_data); | |
1379 | httpFreeCredentials(credentials); | |
1380 | } | |
1381 | ||
25731360 | 1382 | DEBUG_printf(("4_httpTLSStart: Server certificate callback " |
2c85b752 MS |
1383 | "returned %d.", (int)error)); |
1384 | } | |
1385 | break; | |
1386 | ||
1387 | case errSSLClientCertRequested : | |
1388 | error = 0; | |
1389 | ||
1390 | if (cg->client_cert_cb) | |
1391 | { | |
1392 | names = NULL; | |
1393 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && | |
1394 | dn_array) | |
1395 | { | |
1396 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
1397 | { | |
1398 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
1399 | { | |
1400 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
1401 | ||
1402 | if ((credential = malloc(sizeof(*credential))) != NULL) | |
1403 | { | |
7e86f2f6 | 1404 | credential->datalen = (size_t)CFDataGetLength(data); |
2c85b752 MS |
1405 | if ((credential->data = malloc(credential->datalen))) |
1406 | { | |
1407 | memcpy((void *)credential->data, CFDataGetBytePtr(data), | |
1408 | credential->datalen); | |
1409 | cupsArrayAdd(names, credential); | |
1410 | } | |
1411 | else | |
1412 | free(credential); | |
1413 | } | |
1414 | } | |
1415 | } | |
1416 | ||
1417 | CFRelease(dn_array); | |
1418 | } | |
1419 | ||
1420 | if (!error) | |
1421 | { | |
1422 | error = (cg->client_cert_cb)(http, http->tls, names, | |
1423 | cg->client_cert_data); | |
1424 | ||
25731360 | 1425 | DEBUG_printf(("4_httpTLSStart: Client certificate callback " |
2c85b752 MS |
1426 | "returned %d.", (int)error)); |
1427 | } | |
1428 | ||
1429 | httpFreeCredentials(names); | |
1430 | } | |
1431 | break; | |
1432 | ||
1433 | case errSSLUnknownRootCert : | |
1434 | message = _("Unable to establish a secure connection to host " | |
1435 | "(untrusted certificate)."); | |
1436 | break; | |
1437 | ||
1438 | case errSSLNoRootCert : | |
1439 | message = _("Unable to establish a secure connection to host " | |
1440 | "(self-signed certificate)."); | |
1441 | break; | |
1442 | ||
1443 | case errSSLCertExpired : | |
1444 | message = _("Unable to establish a secure connection to host " | |
1445 | "(expired certificate)."); | |
1446 | break; | |
1447 | ||
1448 | case errSSLCertNotYetValid : | |
1449 | message = _("Unable to establish a secure connection to host " | |
1450 | "(certificate not yet valid)."); | |
1451 | break; | |
1452 | ||
1453 | case errSSLHostNameMismatch : | |
1454 | message = _("Unable to establish a secure connection to host " | |
1455 | "(host name mismatch)."); | |
1456 | break; | |
1457 | ||
1458 | case errSSLXCertChainInvalid : | |
1459 | message = _("Unable to establish a secure connection to host " | |
1460 | "(certificate chain invalid)."); | |
1461 | break; | |
1462 | ||
1463 | case errSSLConnectionRefused : | |
1464 | message = _("Unable to establish a secure connection to host " | |
1465 | "(peer dropped connection before responding)."); | |
1466 | break; | |
1467 | ||
1468 | default : | |
1469 | break; | |
1470 | } | |
1471 | } | |
1472 | } | |
1473 | ||
1474 | if (error) | |
1475 | { | |
1476 | http->error = error; | |
1477 | http->status = HTTP_STATUS_ERROR; | |
1478 | errno = ECONNREFUSED; | |
1479 | ||
1480 | CFRelease(http->tls); | |
1481 | http->tls = NULL; | |
1482 | ||
1483 | /* | |
1484 | * If an error string wasn't set by the callbacks use a generic one... | |
1485 | */ | |
1486 | ||
1487 | if (!message) | |
1488 | #ifdef HAVE_CSSMERRORSTRING | |
1489 | message = cssmErrorString(error); | |
1490 | #else | |
1491 | message = _("Unable to establish a secure connection to host."); | |
1492 | #endif /* HAVE_CSSMERRORSTRING */ | |
1493 | ||
1494 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); | |
1495 | ||
1496 | return (-1); | |
1497 | } | |
1498 | ||
1499 | return (0); | |
1500 | } | |
1501 | ||
1502 | ||
1503 | /* | |
25731360 | 1504 | * '_httpTLSStop()' - Shut down SSL/TLS on a connection. |
2c85b752 MS |
1505 | */ |
1506 | ||
25731360 MS |
1507 | void |
1508 | _httpTLSStop(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1509 | { |
1510 | while (SSLClose(http->tls) == errSSLWouldBlock) | |
1511 | usleep(1000); | |
1512 | ||
1513 | CFRelease(http->tls); | |
1514 | ||
1515 | if (http->tls_credentials) | |
1516 | CFRelease(http->tls_credentials); | |
1517 | ||
1518 | http->tls = NULL; | |
1519 | http->tls_credentials = NULL; | |
1520 | } | |
1521 | ||
1522 | ||
1523 | /* | |
25731360 | 1524 | * '_httpTLSWrite()' - Write to a SSL/TLS connection. |
2c85b752 MS |
1525 | */ |
1526 | ||
25731360 MS |
1527 | int /* O - Bytes written */ |
1528 | _httpTLSWrite(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1529 | const char *buf, /* I - Buffer holding data */ |
1530 | int len) /* I - Length of buffer */ | |
1531 | { | |
1532 | ssize_t result; /* Return value */ | |
1533 | OSStatus error; /* Error info */ | |
1534 | size_t processed; /* Number of bytes processed */ | |
1535 | ||
1536 | ||
25731360 | 1537 | DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", http, buf, len)); |
2c85b752 | 1538 | |
7e86f2f6 | 1539 | error = SSLWrite(http->tls, buf, (size_t)len, &processed); |
2c85b752 MS |
1540 | |
1541 | switch (error) | |
1542 | { | |
1543 | case 0 : | |
1544 | result = (int)processed; | |
1545 | break; | |
1546 | ||
1547 | case errSSLWouldBlock : | |
1548 | if (processed) | |
1549 | { | |
1550 | result = (int)processed; | |
1551 | } | |
1552 | else | |
1553 | { | |
1554 | result = -1; | |
1555 | errno = EINTR; | |
1556 | } | |
1557 | break; | |
1558 | ||
1559 | case errSSLClosedGraceful : | |
1560 | default : | |
1561 | if (processed) | |
1562 | { | |
1563 | result = (int)processed; | |
1564 | } | |
1565 | else | |
1566 | { | |
1567 | result = -1; | |
1568 | errno = EPIPE; | |
1569 | } | |
1570 | break; | |
1571 | } | |
1572 | ||
25731360 | 1573 | DEBUG_printf(("3_httpTLSWrite: Returning %d.", (int)result)); |
2c85b752 MS |
1574 | |
1575 | return ((int)result); | |
1576 | } | |
1577 | ||
1578 | ||
88f1e9c8 | 1579 | #ifdef HAVE_SECKEYCHAINOPEN |
2c85b752 | 1580 | /* |
88f1e9c8 | 1581 | * 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain. |
2c85b752 MS |
1582 | */ |
1583 | ||
88f1e9c8 MS |
1584 | static CFArrayRef /* O - Array of certificates or NULL */ |
1585 | http_cdsa_copy_server( | |
1586 | const char *common_name) /* I - Server's hostname */ | |
2c85b752 | 1587 | { |
88f1e9c8 MS |
1588 | OSStatus err; /* Error info */ |
1589 | SecIdentitySearchRef search = NULL; /* Search reference */ | |
1590 | SecIdentityRef identity = NULL;/* Identity */ | |
1591 | CFArrayRef certificates = NULL; | |
1592 | /* Certificate array */ | |
1593 | SecPolicyRef policy = NULL; /* Policy ref */ | |
1594 | CFStringRef cfcommon_name = NULL; | |
1595 | /* Server name */ | |
1596 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
1597 | CFArrayRef list = NULL; /* Keychain list */ | |
2c85b752 | 1598 | |
2c85b752 | 1599 | |
88f1e9c8 | 1600 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
2c85b752 | 1601 | |
88f1e9c8 MS |
1602 | policy = SecPolicyCreateSSL(1, cfcommon_name); |
1603 | ||
1604 | if (cfcommon_name) | |
1605 | CFRelease(cfcommon_name); | |
1606 | ||
1607 | if (!policy) | |
1608 | goto cleanup; | |
1609 | ||
1610 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
1611 | goto cleanup; | |
1612 | ||
f93b32b6 MS |
1613 | _cupsMutexLock(&tls_mutex); |
1614 | ||
88f1e9c8 MS |
1615 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks); |
1616 | ||
1617 | CFDictionaryAddValue(query, kSecClass, kSecClassIdentity); | |
1618 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); | |
1619 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
1620 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
1621 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
1622 | ||
1623 | CFRelease(list); | |
1624 | ||
1625 | err = SecItemCopyMatching(query, (CFTypeRef *)&identity); | |
1626 | ||
f93b32b6 MS |
1627 | _cupsMutexUnlock(&tls_mutex); |
1628 | ||
88f1e9c8 MS |
1629 | if (err) |
1630 | goto cleanup; | |
1631 | ||
1632 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
1633 | goto cleanup; | |
1634 | ||
1635 | if ((certificates = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks)) == NULL) | |
1636 | goto cleanup; | |
1637 | ||
1638 | cleanup : | |
1639 | ||
1640 | if (search) | |
1641 | CFRelease(search); | |
1642 | if (identity) | |
1643 | CFRelease(identity); | |
1644 | ||
1645 | if (policy) | |
1646 | CFRelease(policy); | |
1647 | if (query) | |
1648 | CFRelease(query); | |
1649 | ||
1650 | return (certificates); | |
2c85b752 | 1651 | } |
88f1e9c8 | 1652 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2c85b752 MS |
1653 | |
1654 | ||
2ece34a9 MS |
1655 | /* |
1656 | * 'http_cdsa_create_credential()' - Create a single credential in the internal format. | |
1657 | */ | |
1658 | ||
1659 | static SecCertificateRef /* O - Certificate */ | |
1660 | http_cdsa_create_credential( | |
1661 | http_credential_t *credential) /* I - Credential */ | |
1662 | { | |
1663 | if (!credential) | |
1664 | return (NULL); | |
1665 | ||
1666 | return (SecCertificateCreateWithBytes(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen)); | |
1667 | } | |
1668 | ||
1669 | ||
005f7f1f MS |
1670 | /* |
1671 | * 'http_cdsa_default_path()' - Get the default keychain path. | |
1672 | */ | |
1673 | ||
1674 | static const char * /* O - Keychain path */ | |
1675 | http_cdsa_default_path(char *buffer, /* I - Path buffer */ | |
1676 | size_t bufsize) /* I - Size of buffer */ | |
1677 | { | |
1678 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
1679 | ||
1680 | ||
1681 | if (getuid() && home) | |
1682 | snprintf(buffer, bufsize, "%s/Library/Keychains/login.keychain", home); | |
1683 | else | |
1684 | strlcpy(buffer, "/Library/Keychains/System.keychain", bufsize); | |
1685 | ||
1686 | DEBUG_printf(("1http_cdsa_default_path: Using default path \"%s\".", buffer)); | |
1687 | ||
1688 | return (buffer); | |
1689 | } | |
1690 | ||
1691 | ||
2c85b752 | 1692 | /* |
88f1e9c8 | 1693 | * 'http_cdsa_read()' - Read function for the CDSA library. |
2c85b752 MS |
1694 | */ |
1695 | ||
88f1e9c8 MS |
1696 | static OSStatus /* O - -1 on error, 0 on success */ |
1697 | http_cdsa_read( | |
1698 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1699 | void *data, /* I - Data buffer */ | |
1700 | size_t *dataLength) /* IO - Number of bytes */ | |
2c85b752 | 1701 | { |
88f1e9c8 MS |
1702 | OSStatus result; /* Return value */ |
1703 | ssize_t bytes; /* Number of bytes read */ | |
1704 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1705 | |
2c85b752 | 1706 | |
88f1e9c8 | 1707 | http = (http_t *)connection; |
2c85b752 | 1708 | |
88f1e9c8 | 1709 | if (!http->blocking) |
2c85b752 MS |
1710 | { |
1711 | /* | |
88f1e9c8 | 1712 | * Make sure we have data before we read... |
2c85b752 MS |
1713 | */ |
1714 | ||
88f1e9c8 MS |
1715 | while (!_httpWait(http, http->wait_value, 0)) |
1716 | { | |
1717 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1718 | continue; | |
1719 | ||
1720 | http->error = ETIMEDOUT; | |
1721 | return (-1); | |
1722 | } | |
2c85b752 MS |
1723 | } |
1724 | ||
88f1e9c8 | 1725 | do |
2c85b752 | 1726 | { |
88f1e9c8 | 1727 | bytes = recv(http->fd, data, *dataLength, 0); |
2c85b752 | 1728 | } |
88f1e9c8 | 1729 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
2c85b752 | 1730 | |
88f1e9c8 MS |
1731 | if ((size_t)bytes == *dataLength) |
1732 | { | |
1733 | result = 0; | |
1734 | } | |
1735 | else if (bytes > 0) | |
1736 | { | |
1737 | *dataLength = (size_t)bytes; | |
1738 | result = errSSLWouldBlock; | |
1739 | } | |
1740 | else | |
1741 | { | |
1742 | *dataLength = 0; | |
2c85b752 | 1743 | |
88f1e9c8 MS |
1744 | if (bytes == 0) |
1745 | result = errSSLClosedGraceful; | |
1746 | else if (errno == EAGAIN) | |
1747 | result = errSSLWouldBlock; | |
1748 | else | |
1749 | result = errSSLClosedAbort; | |
1750 | } | |
2c85b752 | 1751 | |
88f1e9c8 MS |
1752 | return (result); |
1753 | } | |
2c85b752 | 1754 | |
2c85b752 | 1755 | |
88f1e9c8 MS |
1756 | /* |
1757 | * 'http_cdsa_set_credentials()' - Set the TLS credentials. | |
1758 | */ | |
2c85b752 | 1759 | |
88f1e9c8 MS |
1760 | static int /* O - Status of connection */ |
1761 | http_cdsa_set_credentials(http_t *http) /* I - HTTP connection */ | |
1762 | { | |
1763 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
1764 | OSStatus error = 0; /* Error code */ | |
1765 | http_tls_credentials_t credentials = NULL; | |
1766 | /* TLS credentials */ | |
2c85b752 | 1767 | |
2c85b752 | 1768 | |
88f1e9c8 | 1769 | DEBUG_printf(("7http_tls_set_credentials(%p)", http)); |
2c85b752 | 1770 | |
88f1e9c8 MS |
1771 | /* |
1772 | * Prefer connection specific credentials... | |
1773 | */ | |
2c85b752 | 1774 | |
88f1e9c8 MS |
1775 | if ((credentials = http->tls_credentials) == NULL) |
1776 | credentials = cg->tls_credentials; | |
2c85b752 | 1777 | |
88f1e9c8 MS |
1778 | if (credentials) |
1779 | { | |
1780 | error = SSLSetCertificate(http->tls, credentials); | |
1781 | DEBUG_printf(("4http_tls_set_credentials: SSLSetCertificate, error=%d", | |
1782 | (int)error)); | |
2c85b752 | 1783 | } |
88f1e9c8 MS |
1784 | else |
1785 | DEBUG_puts("4http_tls_set_credentials: No credentials to set."); | |
1786 | ||
1787 | return (error); | |
1788 | } | |
1789 | ||
1790 | ||
1791 | /* | |
1792 | * 'http_cdsa_write()' - Write function for the CDSA library. | |
1793 | */ | |
1794 | ||
1795 | static OSStatus /* O - -1 on error, 0 on success */ | |
1796 | http_cdsa_write( | |
1797 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1798 | const void *data, /* I - Data buffer */ | |
1799 | size_t *dataLength) /* IO - Number of bytes */ | |
1800 | { | |
1801 | OSStatus result; /* Return value */ | |
1802 | ssize_t bytes; /* Number of bytes read */ | |
1803 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1804 | |
2c85b752 | 1805 | |
88f1e9c8 MS |
1806 | http = (http_t *)connection; |
1807 | ||
1808 | do | |
2c85b752 | 1809 | { |
88f1e9c8 MS |
1810 | bytes = write(http->fd, data, *dataLength); |
1811 | } | |
1812 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); | |
1813 | ||
1814 | if ((size_t)bytes == *dataLength) | |
1815 | { | |
1816 | result = 0; | |
1817 | } | |
1818 | else if (bytes >= 0) | |
1819 | { | |
1820 | *dataLength = (size_t)bytes; | |
1821 | result = errSSLWouldBlock; | |
2c85b752 MS |
1822 | } |
1823 | else | |
88f1e9c8 MS |
1824 | { |
1825 | *dataLength = 0; | |
2c85b752 | 1826 | |
88f1e9c8 MS |
1827 | if (errno == EAGAIN) |
1828 | result = errSSLWouldBlock; | |
1829 | else | |
1830 | result = errSSLClosedAbort; | |
1831 | } | |
1832 | ||
1833 | return (result); | |
2c85b752 | 1834 | } |
2c85b752 MS |
1835 | |
1836 | ||
1837 | /* | |
1838 | * End of "$Id$". | |
1839 | */ |