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Commit | Line | Data |
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2c85b752 | 1 | /* |
2c85b752 MS |
2 | * TLS support code for CUPS on OS X. |
3 | * | |
1ae693e3 | 4 | * Copyright 2007-2016 by Apple Inc. |
2c85b752 MS |
5 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
6 | * | |
7 | * These coded instructions, statements, and computer programs are the | |
8 | * property of Apple Inc. and are protected by Federal copyright | |
9 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
10 | * which should have been included with this file. If this file is | |
11 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
12 | * | |
13 | * This file is subject to the Apple OS-Developed Software exception. | |
14 | */ | |
15 | ||
ebb24a07 | 16 | /**** This file is included from tls.c ****/ |
2c85b752 MS |
17 | |
18 | /* | |
dafebafd | 19 | * Include necessary headers... |
2c85b752 MS |
20 | */ |
21 | ||
dafebafd MS |
22 | #include <spawn.h> |
23 | ||
24 | extern char **environ; | |
25 | ||
26 | ||
c0459938 MS |
27 | /* |
28 | * Local globals... | |
29 | */ | |
30 | ||
eb66bc71 | 31 | #ifdef HAVE_SECKEYCHAINOPEN |
c0459938 MS |
32 | static int tls_auto_create = 0; |
33 | /* Auto-create self-signed certs? */ | |
34 | static char *tls_common_name = NULL; | |
35 | /* Default common name */ | |
41e0907c MS |
36 | static SecKeychainRef tls_keychain = NULL; |
37 | /* Server cert keychain */ | |
38 | static char *tls_keypath = NULL; | |
39 | /* Server cert keychain path */ | |
40 | static _cups_mutex_t tls_mutex = _CUPS_MUTEX_INITIALIZER; | |
41 | /* Mutex for keychain/certs */ | |
eb66bc71 | 42 | #endif /* HAVE_SECKEYCHAINOPEN */ |
4492316e | 43 | static int tls_options = -1;/* Options for TLS connections */ |
c0459938 MS |
44 | |
45 | ||
dafebafd MS |
46 | /* |
47 | * Local functions... | |
48 | */ | |
2c85b752 | 49 | |
eb66bc71 | 50 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 51 | static CFArrayRef http_cdsa_copy_server(const char *common_name); |
eb66bc71 | 52 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2ece34a9 | 53 | static SecCertificateRef http_cdsa_create_credential(http_credential_t *credential); |
005f7f1f | 54 | static const char *http_cdsa_default_path(char *buffer, size_t bufsize); |
41e0907c | 55 | static OSStatus http_cdsa_read(SSLConnectionRef connection, void *data, size_t *dataLength); |
88f1e9c8 | 56 | static int http_cdsa_set_credentials(http_t *http); |
41e0907c | 57 | static OSStatus http_cdsa_write(SSLConnectionRef connection, const void *data, size_t *dataLength); |
2c85b752 MS |
58 | |
59 | ||
3af9ac9e MS |
60 | /* |
61 | * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair. | |
62 | * | |
e1f19878 | 63 | * @since CUPS 2.0/OS 10.10@ |
3af9ac9e MS |
64 | */ |
65 | ||
66 | int /* O - 1 on success, 0 on failure */ | |
67 | cupsMakeServerCredentials( | |
f93b32b6 | 68 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
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 */ | |
73 | { | |
eb66bc71 | 74 | #if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE) && defined(HAVE_SECKEYCHAINOPEN) |
f93b32b6 | 75 | char filename[1024]; /* Default keychain path */ |
41e0907c MS |
76 | int status = 0; /* Return status */ |
77 | OSStatus err; /* Error code (if any) */ | |
78 | CFStringRef cfcommon_name = NULL; | |
79 | /* CF string for server name */ | |
80 | SecIdentityRef ident = NULL; /* Identity */ | |
81 | SecKeyRef publicKey = NULL, | |
82 | /* Public key */ | |
83 | privateKey = NULL; | |
84 | /* Private key */ | |
85 | CFMutableDictionaryRef keyParams = NULL; | |
86 | /* Key generation parameters */ | |
87 | ||
88 | ||
172bdf5d MS |
89 | 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)); |
90 | ||
3af9ac9e MS |
91 | (void)num_alt_names; |
92 | (void)alt_names; | |
93 | (void)expiration_date; | |
94 | ||
f93b32b6 | 95 | if (!path) |
005f7f1f | 96 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 MS |
97 | |
98 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); | |
41e0907c MS |
99 | if (!cfcommon_name) |
100 | goto cleanup; | |
101 | ||
102 | /* | |
103 | * Create a public/private key pair... | |
104 | */ | |
105 | ||
f93b32b6 | 106 | keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); |
41e0907c MS |
107 | if (!keyParams) |
108 | goto cleanup; | |
109 | ||
1ae693e3 | 110 | CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeECDSA); |
41e0907c | 111 | CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048")); |
f93b32b6 | 112 | CFDictionaryAddValue(keyParams, kSecAttrLabel, CFSTR("CUPS Self-Signed Certificate")); |
41e0907c MS |
113 | |
114 | err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey); | |
115 | if (err != noErr) | |
116 | goto cleanup; | |
117 | ||
118 | /* | |
119 | * Create a self-signed certificate using the public/private key pair... | |
120 | */ | |
121 | ||
122 | CFIndex usageInt = kSecKeyUsageAll; | |
123 | CFNumberRef usage = CFNumberCreate(alloc, kCFNumberCFIndexType, &usageInt); | |
124 | CFDictionaryRef certParams = CFDictionaryCreateMutable(kCFAllocatorDefault, | |
125 | kSecCSRBasicContraintsPathLen, CFINT(0), kSecSubjectAltName, cfcommon_name, kSecCertificateKeyUsage, usage, NULL, NULL); | |
126 | CFRelease(usage); | |
127 | ||
128 | const void *ca_o[] = { kSecOidOrganization, CFSTR("") }; | |
129 | const void *ca_cn[] = { kSecOidCommonName, cfcommon_name }; | |
130 | CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL); | |
131 | CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL); | |
132 | const void *ca_dn_array[2]; | |
133 | ||
134 | ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL); | |
135 | ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL); | |
136 | ||
137 | CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL); | |
138 | SecCertificateRef cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey); | |
139 | CFRelease(subject); | |
140 | CFRelease(certParams); | |
141 | ||
142 | if (!cert) | |
143 | goto cleanup; | |
144 | ||
145 | ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey); | |
146 | ||
147 | if (ident) | |
148 | status = 1; | |
149 | ||
150 | /* | |
151 | * Cleanup and return... | |
152 | */ | |
153 | ||
154 | cleanup: | |
155 | ||
156 | if (cfcommon_name) | |
157 | CFRelease(cfcommon_name); | |
158 | ||
159 | if (keyParams) | |
160 | CFRelease(keyParams); | |
161 | ||
162 | if (ident) | |
163 | CFRelease(ident); | |
164 | ||
165 | if (cert) | |
166 | CFRelease(cert); | |
167 | ||
168 | if (publicKey) | |
169 | CFRelease(publicKey); | |
170 | ||
171 | if (privateKey) | |
172 | CFRelease(publicKey); | |
173 | ||
174 | return (status); | |
175 | ||
eb66bc71 | 176 | #else /* !(HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN) */ |
41e0907c | 177 | int pid, /* Process ID of command */ |
7d58a105 MS |
178 | status, /* Status of command */ |
179 | i; /* Looping var */ | |
41e0907c | 180 | char command[1024], /* Command */ |
724f2615 | 181 | *argv[5], /* Command-line arguments */ |
7d58a105 MS |
182 | *envp[1000], /* Environment variables */ |
183 | days[32], /* CERTTOOL_EXPIRATION_DAYS env var */ | |
41e0907c | 184 | keychain[1024], /* Keychain argument */ |
f93b32b6 MS |
185 | infofile[1024], /* Type-in information for cert */ |
186 | filename[1024]; /* Default keychain path */ | |
41e0907c MS |
187 | cups_file_t *fp; /* Seed/info file */ |
188 | ||
189 | ||
807315e6 | 190 | DEBUG_printf(("cupsMakeServerCredentials(path=\"%s\", common_name=\"%s\", num_alt_names=%d, alt_names=%p, expiration_date=%d)", path, common_name, num_alt_names, (void *)alt_names, (int)expiration_date)); |
172bdf5d | 191 | |
41e0907c MS |
192 | (void)num_alt_names; |
193 | (void)alt_names; | |
41e0907c | 194 | |
f93b32b6 | 195 | if (!path) |
005f7f1f | 196 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 197 | |
41e0907c MS |
198 | /* |
199 | * Run the "certtool" command to generate a self-signed certificate... | |
200 | */ | |
201 | ||
202 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
203 | return (-1); | |
204 | ||
205 | /* | |
206 | * Create a file with the certificate information fields... | |
207 | * | |
208 | * Note: This assumes that the default questions are asked by the certtool | |
209 | * command... | |
210 | */ | |
211 | ||
212 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
213 | return (-1); | |
214 | ||
215 | cupsFilePrintf(fp, | |
216 | "CUPS Self-Signed Certificate\n" | |
217 | /* Enter key and certificate label */ | |
724f2615 | 218 | "r\n" /* Generate RSA key pair */ |
1ae693e3 | 219 | "2048\n" /* 2048 bit encryption key */ |
41e0907c MS |
220 | "y\n" /* OK (y = yes) */ |
221 | "b\n" /* Usage (b=signing/encryption) */ | |
1ae693e3 | 222 | "2\n" /* Sign with SHA256 */ |
41e0907c MS |
223 | "y\n" /* OK (y = yes) */ |
224 | "%s\n" /* Common name */ | |
225 | "\n" /* Country (default) */ | |
226 | "\n" /* Organization (default) */ | |
227 | "\n" /* Organizational unit (default) */ | |
228 | "\n" /* State/Province (default) */ | |
229 | "\n" /* Email address */ | |
230 | "y\n", /* OK (y = yes) */ | |
231 | common_name); | |
232 | cupsFileClose(fp); | |
233 | ||
234 | snprintf(keychain, sizeof(keychain), "k=%s", path); | |
235 | ||
236 | argv[0] = "certtool"; | |
237 | argv[1] = "c"; | |
238 | argv[2] = keychain; | |
239 | argv[3] = NULL; | |
240 | ||
7d58a105 MS |
241 | snprintf(days, sizeof(days), "CERTTOOL_EXPIRATION_DAYS=%d", (int)((expiration_date - time(NULL) + 86399) / 86400)); |
242 | envp[0] = days; | |
243 | for (i = 0; i < (int)(sizeof(envp) / sizeof(envp[0]) - 2) && environ[i]; i ++) | |
244 | envp[i + 1] = environ[i]; | |
245 | envp[i] = NULL; | |
246 | ||
41e0907c MS |
247 | posix_spawn_file_actions_t actions; /* File actions */ |
248 | ||
249 | posix_spawn_file_actions_init(&actions); | |
250 | posix_spawn_file_actions_addclose(&actions, 0); | |
251 | posix_spawn_file_actions_addopen(&actions, 0, infofile, O_RDONLY, 0); | |
f93b32b6 MS |
252 | posix_spawn_file_actions_addclose(&actions, 1); |
253 | posix_spawn_file_actions_addopen(&actions, 1, "/dev/null", O_WRONLY, 0); | |
254 | posix_spawn_file_actions_addclose(&actions, 2); | |
255 | posix_spawn_file_actions_addopen(&actions, 2, "/dev/null", O_WRONLY, 0); | |
41e0907c | 256 | |
7d58a105 | 257 | if (posix_spawn(&pid, command, &actions, NULL, argv, envp)) |
41e0907c MS |
258 | { |
259 | unlink(infofile); | |
260 | return (-1); | |
261 | } | |
262 | ||
263 | posix_spawn_file_actions_destroy(&actions); | |
264 | ||
265 | unlink(infofile); | |
266 | ||
267 | while (waitpid(pid, &status, 0) < 0) | |
268 | if (errno != EINTR) | |
269 | { | |
270 | status = -1; | |
271 | break; | |
272 | } | |
273 | ||
274 | return (!status); | |
eb66bc71 | 275 | #endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
276 | } |
277 | ||
278 | ||
279 | /* | |
280 | * 'cupsSetServerCredentials()' - Set the default server credentials. | |
281 | * | |
282 | * Note: The server credentials are used by all threads in the running process. | |
283 | * This function is threadsafe. | |
284 | * | |
e1f19878 | 285 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
286 | */ |
287 | ||
288 | int /* O - 1 on success, 0 on failure */ | |
289 | cupsSetServerCredentials( | |
f93b32b6 | 290 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
291 | const char *common_name, /* I - Default common name for server */ |
292 | int auto_create) /* I - 1 = automatically create self-signed certificates */ | |
293 | { | |
a27a134a MS |
294 | DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create)); |
295 | ||
eb66bc71 | 296 | #ifdef HAVE_SECKEYCHAINOPEN |
f93b32b6 | 297 | char filename[1024]; /* Filename for keychain */ |
c0459938 | 298 | SecKeychainRef keychain = NULL;/* Temporary keychain */ |
fcea7df4 | 299 | OSStatus status; /* Status code */ |
3af9ac9e | 300 | |
c0459938 | 301 | |
f93b32b6 | 302 | if (!path) |
005f7f1f | 303 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 304 | |
fcea7df4 | 305 | if ((status = SecKeychainOpen(path, &keychain)) != noErr) |
c0459938 MS |
306 | { |
307 | /* TODO: Set cups last error string */ | |
fcea7df4 | 308 | DEBUG_printf(("1cupsSetServerCredentials: Unable to open keychain (%d), returning 0.", (int)status)); |
c0459938 MS |
309 | return (0); |
310 | } | |
311 | ||
312 | _cupsMutexLock(&tls_mutex); | |
313 | ||
314 | /* | |
315 | * Close any keychain that is currently open... | |
316 | */ | |
317 | ||
318 | if (tls_keychain) | |
319 | CFRelease(tls_keychain); | |
320 | ||
41e0907c MS |
321 | if (tls_keypath) |
322 | _cupsStrFree(tls_keypath); | |
323 | ||
c0459938 MS |
324 | if (tls_common_name) |
325 | _cupsStrFree(tls_common_name); | |
326 | ||
327 | /* | |
328 | * Save the new keychain... | |
329 | */ | |
330 | ||
331 | tls_keychain = keychain; | |
41e0907c | 332 | tls_keypath = _cupsStrAlloc(path); |
c0459938 MS |
333 | tls_auto_create = auto_create; |
334 | tls_common_name = _cupsStrAlloc(common_name); | |
335 | ||
336 | _cupsMutexUnlock(&tls_mutex); | |
337 | ||
a27a134a | 338 | DEBUG_puts("1cupsSetServerCredentials: Opened keychain, returning 1."); |
c0459938 | 339 | return (1); |
eb66bc71 MS |
340 | |
341 | #else | |
a27a134a | 342 | DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0."); |
eb66bc71 MS |
343 | return (0); |
344 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
3af9ac9e MS |
345 | } |
346 | ||
2c85b752 MS |
347 | |
348 | /* | |
349 | * 'httpCopyCredentials()' - Copy the credentials associated with the peer in | |
350 | * an encrypted connection. | |
351 | * | |
352 | * @since CUPS 1.5/OS X 10.7@ | |
353 | */ | |
354 | ||
355 | int /* O - Status of call (0 = success) */ | |
356 | httpCopyCredentials( | |
357 | http_t *http, /* I - Connection to server */ | |
358 | cups_array_t **credentials) /* O - Array of credentials */ | |
359 | { | |
360 | OSStatus error; /* Error code */ | |
361 | SecTrustRef peerTrust; /* Peer trust reference */ | |
362 | CFIndex count; /* Number of credentials */ | |
363 | SecCertificateRef secCert; /* Certificate reference */ | |
364 | CFDataRef data; /* Certificate data */ | |
365 | int i; /* Looping var */ | |
366 | ||
367 | ||
807315e6 | 368 | DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", (void *)http, (void *)credentials)); |
376d7c69 | 369 | |
2c85b752 MS |
370 | if (credentials) |
371 | *credentials = NULL; | |
372 | ||
373 | if (!http || !http->tls || !credentials) | |
374 | return (-1); | |
375 | ||
376 | if (!(error = SSLCopyPeerTrust(http->tls, &peerTrust)) && peerTrust) | |
377 | { | |
376d7c69 MS |
378 | DEBUG_printf(("2httpCopyCredentials: Peer provided %d certificates.", (int)SecTrustGetCertificateCount(peerTrust))); |
379 | ||
2c85b752 MS |
380 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) |
381 | { | |
382 | count = SecTrustGetCertificateCount(peerTrust); | |
383 | ||
384 | for (i = 0; i < count; i ++) | |
385 | { | |
386 | secCert = SecTrustGetCertificateAtIndex(peerTrust, i); | |
376d7c69 MS |
387 | |
388 | #ifdef DEBUG | |
389 | CFStringRef cf_name = SecCertificateCopySubjectSummary(secCert); | |
390 | char name[1024]; | |
391 | if (cf_name) | |
392 | CFStringGetCString(cf_name, name, sizeof(name), kCFStringEncodingUTF8); | |
393 | else | |
394 | strlcpy(name, "unknown", sizeof(name)); | |
395 | ||
396 | DEBUG_printf(("2httpCopyCredentials: Certificate %d name is \"%s\".", i, name)); | |
397 | #endif /* DEBUG */ | |
398 | ||
88f1e9c8 | 399 | if ((data = SecCertificateCopyData(secCert)) != NULL) |
2c85b752 | 400 | { |
376d7c69 MS |
401 | DEBUG_printf(("2httpCopyCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); |
402 | ||
7e86f2f6 | 403 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); |
2c85b752 MS |
404 | CFRelease(data); |
405 | } | |
406 | } | |
407 | } | |
408 | ||
409 | CFRelease(peerTrust); | |
410 | } | |
411 | ||
412 | return (error); | |
413 | } | |
414 | ||
415 | ||
416 | /* | |
417 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
418 | */ | |
419 | ||
420 | http_tls_credentials_t /* O - Internal credentials */ | |
421 | _httpCreateCredentials( | |
422 | cups_array_t *credentials) /* I - Array of credentials */ | |
423 | { | |
424 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
425 | SecCertificateRef secCert; /* Certificate reference */ | |
2c85b752 MS |
426 | http_credential_t *credential; /* Credential data */ |
427 | ||
428 | ||
429 | if (!credentials) | |
430 | return (NULL); | |
431 | ||
432 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
433 | cupsArrayCount(credentials), | |
434 | &kCFTypeArrayCallBacks)) == NULL) | |
435 | return (NULL); | |
436 | ||
437 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
438 | credential; | |
439 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
440 | { | |
9653cfdf | 441 | if ((secCert = http_cdsa_create_credential(credential)) != NULL) |
2c85b752 | 442 | { |
9653cfdf MS |
443 | CFArrayAppendValue(peerCerts, secCert); |
444 | CFRelease(secCert); | |
2c85b752 MS |
445 | } |
446 | } | |
447 | ||
448 | return (peerCerts); | |
449 | } | |
450 | ||
451 | ||
3af9ac9e | 452 | /* |
524c65e6 | 453 | * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name. |
3af9ac9e | 454 | * |
e1f19878 | 455 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
456 | */ |
457 | ||
524c65e6 MS |
458 | int /* O - 1 if valid, 0 otherwise */ |
459 | httpCredentialsAreValidForName( | |
460 | cups_array_t *credentials, /* I - Credentials */ | |
461 | const char *common_name) /* I - Name to check */ | |
462 | { | |
463 | SecCertificateRef secCert; /* Certificate reference */ | |
464 | CFStringRef cfcert_name = NULL; | |
465 | /* Certificate's common name (CF string) */ | |
466 | char cert_name[256]; /* Certificate's common name (C string) */ | |
467 | int valid = 1; /* Valid name? */ | |
468 | ||
469 | ||
470 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
471 | return (0); | |
472 | ||
473 | /* | |
474 | * Compare the common names... | |
475 | */ | |
476 | ||
477 | if ((cfcert_name = SecCertificateCopySubjectSummary(secCert)) == NULL) | |
478 | { | |
479 | /* | |
480 | * Can't get common name, cannot be valid... | |
481 | */ | |
482 | ||
483 | valid = 0; | |
484 | } | |
485 | else if (CFStringGetCString(cfcert_name, cert_name, sizeof(cert_name), kCFStringEncodingUTF8) && | |
486 | _cups_strcasecmp(common_name, cert_name)) | |
487 | { | |
488 | /* | |
489 | * Not an exact match for the common name, check for wildcard certs... | |
490 | */ | |
491 | ||
492 | const char *domain = strchr(common_name, '.'); | |
493 | /* Domain in common name */ | |
494 | ||
495 | if (strncmp(cert_name, "*.", 2) || !domain || _cups_strcasecmp(domain, cert_name + 1)) | |
496 | { | |
497 | /* | |
498 | * Not a wildcard match. | |
499 | */ | |
500 | ||
501 | /* TODO: Check subject alternate names */ | |
502 | valid = 0; | |
503 | } | |
504 | } | |
505 | ||
506 | if (cfcert_name) | |
507 | CFRelease(cfcert_name); | |
508 | ||
509 | CFRelease(secCert); | |
510 | ||
511 | return (valid); | |
512 | } | |
513 | ||
514 | ||
515 | /* | |
516 | * 'httpCredentialsGetTrust()' - Return the trust of credentials. | |
517 | * | |
e1f19878 | 518 | * @since CUPS 2.0/OS X 10.10@ |
524c65e6 MS |
519 | */ |
520 | ||
521 | http_trust_t /* O - Level of trust */ | |
522 | httpCredentialsGetTrust( | |
376d7c69 MS |
523 | cups_array_t *credentials, /* I - Credentials */ |
524 | const char *common_name) /* I - Common name for trust lookup */ | |
3af9ac9e | 525 | { |
9653cfdf | 526 | SecCertificateRef secCert; /* Certificate reference */ |
524c65e6 MS |
527 | http_trust_t trust = HTTP_TRUST_OK; |
528 | /* Trusted? */ | |
376d7c69 | 529 | cups_array_t *tcreds = NULL; /* Trusted credentials */ |
9653cfdf MS |
530 | _cups_globals_t *cg = _cupsGlobals(); |
531 | /* Per-thread globals */ | |
3af9ac9e | 532 | |
9653cfdf | 533 | |
376d7c69 | 534 | if (!common_name) |
524c65e6 | 535 | return (HTTP_TRUST_UNKNOWN); |
376d7c69 | 536 | |
9653cfdf | 537 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
524c65e6 | 538 | return (HTTP_TRUST_UNKNOWN); |
9653cfdf | 539 | |
3abb875b MS |
540 | if (cg->any_root < 0) |
541 | _cupsSetDefaults(); | |
542 | ||
376d7c69 | 543 | /* |
88f1e9c8 | 544 | * Look this common name up in the default keychains... |
376d7c69 MS |
545 | */ |
546 | ||
88f1e9c8 | 547 | httpLoadCredentials(NULL, &tcreds, common_name); |
376d7c69 MS |
548 | |
549 | if (tcreds) | |
550 | { | |
551 | char credentials_str[1024], /* String for incoming credentials */ | |
552 | tcreds_str[1024]; /* String for saved credentials */ | |
553 | ||
554 | httpCredentialsString(credentials, credentials_str, sizeof(credentials_str)); | |
555 | httpCredentialsString(tcreds, tcreds_str, sizeof(tcreds_str)); | |
556 | ||
557 | if (strcmp(credentials_str, tcreds_str)) | |
558 | { | |
559 | /* | |
560 | * Credentials don't match, let's look at the expiration date of the new | |
561 | * credentials and allow if the new ones have a later expiration... | |
562 | */ | |
563 | ||
564 | if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds) || | |
524c65e6 | 565 | !httpCredentialsAreValidForName(credentials, common_name)) |
376d7c69 MS |
566 | { |
567 | /* | |
568 | * Either the new credentials are not newly issued, or the common name | |
569 | * does not match the issued certificate... | |
570 | */ | |
571 | ||
524c65e6 | 572 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 573 | } |
524c65e6 | 574 | else if (httpCredentialsGetExpiration(tcreds) < time(NULL)) |
376d7c69 MS |
575 | { |
576 | /* | |
524c65e6 | 577 | * Save the renewed credentials... |
376d7c69 MS |
578 | */ |
579 | ||
524c65e6 MS |
580 | trust = HTTP_TRUST_RENEWED; |
581 | ||
582 | httpSaveCredentials(NULL, credentials, common_name); | |
376d7c69 MS |
583 | } |
584 | } | |
585 | ||
586 | httpFreeCredentials(tcreds); | |
587 | } | |
f51f3773 | 588 | else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name)) |
524c65e6 | 589 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 590 | |
9653cfdf | 591 | if (!cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent())) |
524c65e6 | 592 | trust = HTTP_TRUST_EXPIRED; |
25731360 | 593 | else if (!cg->any_root && cupsArrayCount(credentials) == 1) |
524c65e6 | 594 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 595 | |
9653cfdf MS |
596 | CFRelease(secCert); |
597 | ||
524c65e6 | 598 | return (trust); |
3af9ac9e MS |
599 | } |
600 | ||
601 | ||
602 | /* | |
603 | * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials. | |
604 | * | |
e1f19878 | 605 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
606 | */ |
607 | ||
608 | time_t /* O - Expiration date of credentials */ | |
609 | httpCredentialsGetExpiration( | |
610 | cups_array_t *credentials) /* I - Credentials */ | |
611 | { | |
9653cfdf MS |
612 | SecCertificateRef secCert; /* Certificate reference */ |
613 | time_t expiration; /* Expiration date */ | |
3af9ac9e | 614 | |
9653cfdf MS |
615 | |
616 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
617 | return (0); | |
618 | ||
376d7c69 | 619 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); |
9653cfdf MS |
620 | |
621 | CFRelease(secCert); | |
622 | ||
623 | return (expiration); | |
3af9ac9e MS |
624 | } |
625 | ||
626 | ||
72d05bc9 MS |
627 | /* |
628 | * 'httpCredentialsString()' - Return a string representing the credentials. | |
629 | * | |
e1f19878 | 630 | * @since CUPS 2.0/OS X 10.10@ |
72d05bc9 MS |
631 | */ |
632 | ||
633 | size_t /* O - Total size of credentials string */ | |
634 | httpCredentialsString( | |
635 | cups_array_t *credentials, /* I - Credentials */ | |
636 | char *buffer, /* I - Buffer or @code NULL@ */ | |
637 | size_t bufsize) /* I - Size of buffer */ | |
638 | { | |
376d7c69 | 639 | http_credential_t *first; /* First certificate */ |
9653cfdf | 640 | SecCertificateRef secCert; /* Certificate reference */ |
9653cfdf MS |
641 | |
642 | ||
807315e6 | 643 | DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", (void *)credentials, (void *)buffer, CUPS_LLCAST bufsize)); |
376d7c69 | 644 | |
9653cfdf MS |
645 | if (!buffer) |
646 | return (0); | |
72d05bc9 MS |
647 | |
648 | if (buffer && bufsize > 0) | |
649 | *buffer = '\0'; | |
650 | ||
376d7c69 MS |
651 | if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL && |
652 | (secCert = http_cdsa_create_credential(first)) != NULL) | |
9653cfdf | 653 | { |
376d7c69 MS |
654 | CFStringRef cf_name; /* CF common name string */ |
655 | char name[256]; /* Common name associated with cert */ | |
656 | time_t expiration; /* Expiration date of cert */ | |
657 | _cups_md5_state_t md5_state; /* MD5 state */ | |
658 | unsigned char md5_digest[16]; /* MD5 result */ | |
659 | ||
660 | if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL) | |
9653cfdf | 661 | { |
376d7c69 MS |
662 | CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8); |
663 | CFRelease(cf_name); | |
9653cfdf | 664 | } |
376d7c69 MS |
665 | else |
666 | strlcpy(name, "unknown", sizeof(name)); | |
667 | ||
668 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); | |
669 | ||
670 | _cupsMD5Init(&md5_state); | |
671 | _cupsMD5Append(&md5_state, first->data, (int)first->datalen); | |
672 | _cupsMD5Finish(&md5_state, md5_digest); | |
673 | ||
674 | 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 |
675 | |
676 | CFRelease(secCert); | |
677 | } | |
678 | ||
376d7c69 MS |
679 | DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer)); |
680 | ||
9653cfdf | 681 | return (strlen(buffer)); |
72d05bc9 MS |
682 | } |
683 | ||
684 | ||
2c85b752 MS |
685 | /* |
686 | * '_httpFreeCredentials()' - Free internal credentials. | |
687 | */ | |
688 | ||
689 | void | |
690 | _httpFreeCredentials( | |
691 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
692 | { | |
693 | if (!credentials) | |
694 | return; | |
695 | ||
696 | CFRelease(credentials); | |
697 | } | |
698 | ||
699 | ||
72d05bc9 MS |
700 | /* |
701 | * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file. | |
702 | * | |
e1f19878 | 703 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
704 | */ |
705 | ||
dafebafd | 706 | int /* O - 0 on success, -1 on error */ |
72d05bc9 | 707 | httpLoadCredentials( |
f93b32b6 | 708 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
709 | cups_array_t **credentials, /* IO - Credentials */ |
710 | const char *common_name) /* I - Common name for credentials */ | |
711 | { | |
88f1e9c8 | 712 | #ifdef HAVE_SECKEYCHAINOPEN |
dafebafd | 713 | OSStatus err; /* Error info */ |
88f1e9c8 | 714 | char filename[1024]; /* Filename for keychain */ |
dafebafd MS |
715 | SecKeychainRef keychain = NULL;/* Keychain reference */ |
716 | SecIdentitySearchRef search = NULL; /* Search reference */ | |
88f1e9c8 MS |
717 | SecCertificateRef cert = NULL; /* Certificate */ |
718 | CFDataRef data; /* Certificate data */ | |
dafebafd MS |
719 | SecPolicyRef policy = NULL; /* Policy ref */ |
720 | CFStringRef cfcommon_name = NULL; | |
721 | /* Server name */ | |
722 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
723 | CFArrayRef list = NULL; /* Keychain list */ | |
724 | ||
725 | ||
807315e6 | 726 | DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name)); |
88f1e9c8 MS |
727 | |
728 | if (!credentials) | |
729 | return (-1); | |
730 | ||
731 | *credentials = NULL; | |
732 | ||
733 | if (!path) | |
005f7f1f | 734 | path = http_cdsa_default_path(filename, sizeof(filename)); |
88f1e9c8 | 735 | |
88f1e9c8 | 736 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
dafebafd MS |
737 | goto cleanup; |
738 | ||
739 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); | |
740 | ||
741 | policy = SecPolicyCreateSSL(1, cfcommon_name); | |
742 | ||
743 | if (cfcommon_name) | |
744 | CFRelease(cfcommon_name); | |
745 | ||
746 | if (!policy) | |
747 | goto cleanup; | |
748 | ||
749 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
750 | goto cleanup; | |
751 | ||
88f1e9c8 | 752 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks); |
dafebafd | 753 | |
88f1e9c8 | 754 | CFDictionaryAddValue(query, kSecClass, kSecClassCertificate); |
dafebafd MS |
755 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); |
756 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
757 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
758 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
759 | ||
760 | CFRelease(list); | |
761 | ||
88f1e9c8 | 762 | err = SecItemCopyMatching(query, (CFTypeRef *)&cert); |
dafebafd MS |
763 | |
764 | if (err) | |
765 | goto cleanup; | |
766 | ||
88f1e9c8 | 767 | if (CFGetTypeID(cert) != SecCertificateGetTypeID()) |
dafebafd MS |
768 | goto cleanup; |
769 | ||
88f1e9c8 MS |
770 | if ((data = SecCertificateCopyData(cert)) != NULL) |
771 | { | |
772 | DEBUG_printf(("1httpLoadCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); | |
773 | ||
774 | *credentials = cupsArrayNew(NULL, NULL); | |
775 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); | |
776 | CFRelease(data); | |
777 | } | |
dafebafd MS |
778 | |
779 | cleanup : | |
780 | ||
781 | if (keychain) | |
782 | CFRelease(keychain); | |
783 | if (search) | |
784 | CFRelease(search); | |
88f1e9c8 MS |
785 | if (cert) |
786 | CFRelease(cert); | |
dafebafd MS |
787 | if (policy) |
788 | CFRelease(policy); | |
789 | if (query) | |
790 | CFRelease(query); | |
791 | ||
88f1e9c8 MS |
792 | DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1)); |
793 | ||
794 | return (*credentials ? 0 : -1); | |
795 | ||
796 | #else | |
797 | (void)path; | |
798 | (void)credentials; | |
799 | (void)common_name; | |
800 | ||
801 | return (-1); | |
802 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
72d05bc9 MS |
803 | } |
804 | ||
805 | ||
72d05bc9 MS |
806 | /* |
807 | * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file. | |
808 | * | |
e1f19878 | 809 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
810 | */ |
811 | ||
812 | int /* O - -1 on error, 0 on success */ | |
813 | httpSaveCredentials( | |
f93b32b6 | 814 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
815 | cups_array_t *credentials, /* I - Credentials */ |
816 | const char *common_name) /* I - Common name for credentials */ | |
817 | { | |
eb66bc71 | 818 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 819 | int ret = -1; /* Return value */ |
41e0907c | 820 | OSStatus err; /* Error info */ |
88f1e9c8 MS |
821 | char filename[1024]; /* Filename for keychain */ |
822 | SecKeychainRef keychain = NULL;/* Keychain reference */ | |
41e0907c | 823 | SecIdentitySearchRef search = NULL; /* Search reference */ |
88f1e9c8 | 824 | SecCertificateRef cert = NULL; /* Certificate */ |
88f1e9c8 | 825 | CFMutableDictionaryRef attrs = NULL; /* Attributes for add */ |
41e0907c MS |
826 | CFArrayRef list = NULL; /* Keychain list */ |
827 | ||
828 | ||
807315e6 | 829 | DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name)); |
88f1e9c8 | 830 | if (!credentials) |
41e0907c MS |
831 | goto cleanup; |
832 | ||
524c65e6 MS |
833 | if (!httpCredentialsAreValidForName(credentials, common_name)) |
834 | { | |
835 | DEBUG_puts("1httpSaveCredentials: Common name does not match."); | |
836 | return (-1); | |
837 | } | |
838 | ||
88f1e9c8 MS |
839 | if ((cert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
840 | { | |
841 | DEBUG_puts("1httpSaveCredentials: Unable to create certificate."); | |
41e0907c | 842 | goto cleanup; |
88f1e9c8 | 843 | } |
41e0907c | 844 | |
88f1e9c8 | 845 | if (!path) |
005f7f1f | 846 | path = http_cdsa_default_path(filename, sizeof(filename)); |
2c85b752 | 847 | |
88f1e9c8 | 848 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
2c85b752 | 849 | { |
88f1e9c8 MS |
850 | DEBUG_printf(("1httpSaveCredentials: SecKeychainOpen returned %d.", (int)err)); |
851 | goto cleanup; | |
2c85b752 | 852 | } |
2c85b752 | 853 | |
88f1e9c8 | 854 | if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL) |
2c85b752 | 855 | { |
88f1e9c8 MS |
856 | DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains."); |
857 | goto cleanup; | |
2c85b752 | 858 | } |
88f1e9c8 | 859 | |
88f1e9c8 MS |
860 | if ((attrs = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL) |
861 | { | |
862 | DEBUG_puts("1httpSaveCredentials: Unable to create dictionary."); | |
863 | goto cleanup; | |
2c85b752 MS |
864 | } |
865 | ||
88f1e9c8 | 866 | CFDictionaryAddValue(attrs, kSecClass, kSecClassCertificate); |
88f1e9c8 MS |
867 | CFDictionaryAddValue(attrs, kSecValueRef, cert); |
868 | CFDictionaryAddValue(attrs, kSecMatchSearchList, list); | |
2c85b752 | 869 | |
88f1e9c8 | 870 | /* Note: SecItemAdd consumes "attrs"... */ |
524c65e6 | 871 | err = SecItemAdd(attrs, NULL); |
88f1e9c8 | 872 | DEBUG_printf(("1httpSaveCredentials: SecItemAdd returned %d.", (int)err)); |
2c85b752 | 873 | |
88f1e9c8 | 874 | cleanup : |
2c85b752 | 875 | |
88f1e9c8 MS |
876 | if (list) |
877 | CFRelease(list); | |
878 | if (keychain) | |
879 | CFRelease(keychain); | |
880 | if (search) | |
881 | CFRelease(search); | |
882 | if (cert) | |
883 | CFRelease(cert); | |
2c85b752 | 884 | |
88f1e9c8 | 885 | DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret)); |
2c85b752 | 886 | |
88f1e9c8 | 887 | return (ret); |
2c85b752 | 888 | |
88f1e9c8 MS |
889 | #else |
890 | (void)path; | |
891 | (void)credentials; | |
892 | (void)common_name; | |
2c85b752 | 893 | |
88f1e9c8 MS |
894 | return (-1); |
895 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 MS |
896 | } |
897 | ||
898 | ||
899 | /* | |
25731360 | 900 | * '_httpTLSInitialize()' - Initialize the TLS stack. |
2c85b752 MS |
901 | */ |
902 | ||
25731360 MS |
903 | void |
904 | _httpTLSInitialize(void) | |
2c85b752 MS |
905 | { |
906 | /* | |
907 | * Nothing to do... | |
908 | */ | |
909 | } | |
910 | ||
911 | ||
912 | /* | |
25731360 | 913 | * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes. |
2c85b752 MS |
914 | */ |
915 | ||
25731360 MS |
916 | size_t |
917 | _httpTLSPending(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
918 | { |
919 | size_t bytes; /* Bytes that are available */ | |
920 | ||
921 | ||
922 | if (!SSLGetBufferedReadSize(http->tls, &bytes)) | |
923 | return (bytes); | |
924 | ||
925 | return (0); | |
926 | } | |
927 | ||
928 | ||
929 | /* | |
25731360 | 930 | * '_httpTLSRead()' - Read from a SSL/TLS connection. |
2c85b752 MS |
931 | */ |
932 | ||
25731360 MS |
933 | int /* O - Bytes read */ |
934 | _httpTLSRead(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
935 | char *buf, /* I - Buffer to store data */ |
936 | int len) /* I - Length of buffer */ | |
937 | { | |
938 | int result; /* Return value */ | |
939 | OSStatus error; /* Error info */ | |
940 | size_t processed; /* Number of bytes processed */ | |
941 | ||
942 | ||
7e86f2f6 | 943 | error = SSLRead(http->tls, buf, (size_t)len, &processed); |
25731360 | 944 | DEBUG_printf(("6_httpTLSRead: error=%d, processed=%d", (int)error, |
2c85b752 MS |
945 | (int)processed)); |
946 | switch (error) | |
947 | { | |
948 | case 0 : | |
949 | result = (int)processed; | |
950 | break; | |
951 | ||
952 | case errSSLWouldBlock : | |
953 | if (processed) | |
954 | result = (int)processed; | |
955 | else | |
956 | { | |
957 | result = -1; | |
958 | errno = EINTR; | |
959 | } | |
960 | break; | |
961 | ||
962 | case errSSLClosedGraceful : | |
963 | default : | |
964 | if (processed) | |
965 | result = (int)processed; | |
966 | else | |
967 | { | |
968 | result = -1; | |
969 | errno = EPIPE; | |
970 | } | |
971 | break; | |
972 | } | |
973 | ||
974 | return (result); | |
975 | } | |
976 | ||
977 | ||
63aefcd5 MS |
978 | /* |
979 | * '_httpTLSSetOptions()' - Set TLS protocol and cipher suite options. | |
980 | */ | |
981 | ||
982 | void | |
983 | _httpTLSSetOptions(int options) /* I - Options */ | |
984 | { | |
985 | tls_options = options; | |
986 | } | |
987 | ||
988 | ||
2c85b752 | 989 | /* |
25731360 | 990 | * '_httpTLSStart()' - Set up SSL/TLS support on a connection. |
2c85b752 MS |
991 | */ |
992 | ||
25731360 MS |
993 | int /* O - 0 on success, -1 on failure */ |
994 | _httpTLSStart(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
995 | { |
996 | char hostname[256], /* Hostname */ | |
997 | *hostptr; /* Pointer into hostname */ | |
998 | _cups_globals_t *cg = _cupsGlobals(); | |
999 | /* Pointer to library globals */ | |
1000 | OSStatus error; /* Error code */ | |
1001 | const char *message = NULL;/* Error message */ | |
1002 | cups_array_t *credentials; /* Credentials array */ | |
1003 | cups_array_t *names; /* CUPS distinguished names */ | |
1004 | CFArrayRef dn_array; /* CF distinguished names array */ | |
1005 | CFIndex count; /* Number of credentials */ | |
1006 | CFDataRef data; /* Certificate data */ | |
1007 | int i; /* Looping var */ | |
1008 | http_credential_t *credential; /* Credential data */ | |
1009 | ||
1010 | ||
807315e6 | 1011 | DEBUG_printf(("3_httpTLSStart(http=%p)", (void *)http)); |
b37d45d9 MS |
1012 | |
1013 | if (tls_options < 0) | |
1014 | { | |
1015 | DEBUG_puts("4_httpTLSStart: Setting defaults."); | |
1016 | _cupsSetDefaults(); | |
1017 | DEBUG_printf(("4_httpTLSStart: tls_options=%x", tls_options)); | |
1018 | } | |
2c85b752 | 1019 | |
c913d726 | 1020 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 1021 | if (http->mode == _HTTP_MODE_SERVER && !tls_keychain) |
c913d726 MS |
1022 | #else |
1023 | if (http->mode == _HTTP_MODE_SERVER) | |
1024 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 | 1025 | { |
25731360 | 1026 | DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called."); |
41e0907c MS |
1027 | http->error = errno = EINVAL; |
1028 | http->status = HTTP_STATUS_ERROR; | |
1029 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Server credentials not set."), 1); | |
2c85b752 | 1030 | |
41e0907c | 1031 | return (-1); |
2c85b752 MS |
1032 | } |
1033 | ||
72d05bc9 | 1034 | if ((http->tls = SSLCreateContext(kCFAllocatorDefault, http->mode == _HTTP_MODE_CLIENT ? kSSLClientSide : kSSLServerSide, kSSLStreamType)) == NULL) |
2c85b752 | 1035 | { |
25731360 | 1036 | DEBUG_puts("4_httpTLSStart: SSLCreateContext failed."); |
2c85b752 MS |
1037 | http->error = errno = ENOMEM; |
1038 | http->status = HTTP_STATUS_ERROR; | |
1039 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
1040 | ||
1041 | return (-1); | |
1042 | } | |
1043 | ||
1044 | error = SSLSetConnection(http->tls, http); | |
25731360 | 1045 | DEBUG_printf(("4_httpTLSStart: SSLSetConnection, error=%d", (int)error)); |
2c85b752 MS |
1046 | |
1047 | if (!error) | |
1048 | { | |
1049 | error = SSLSetIOFuncs(http->tls, http_cdsa_read, http_cdsa_write); | |
25731360 | 1050 | DEBUG_printf(("4_httpTLSStart: SSLSetIOFuncs, error=%d", (int)error)); |
2c85b752 MS |
1051 | } |
1052 | ||
1053 | if (!error) | |
1054 | { | |
1055 | error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth, | |
1056 | true); | |
63aefcd5 MS |
1057 | DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", (int)error)); |
1058 | } | |
1059 | ||
1060 | if (!error) | |
1061 | { | |
ee6226a5 | 1062 | SSLProtocol minProtocol; |
4492316e | 1063 | |
ee6226a5 MS |
1064 | if (tls_options & _HTTP_TLS_DENY_TLS10) |
1065 | minProtocol = kTLSProtocol11; | |
1066 | else if (tls_options & _HTTP_TLS_ALLOW_SSL3) | |
1067 | minProtocol = kSSLProtocol3; | |
1068 | else | |
1069 | minProtocol = kTLSProtocol1; | |
1070 | ||
1071 | error = SSLSetProtocolVersionMin(http->tls, minProtocol); | |
1072 | DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMin(%d), error=%d", minProtocol, (int)error)); | |
63aefcd5 MS |
1073 | } |
1074 | ||
ee6226a5 | 1075 | # if HAVE_SSLSETENABLEDCIPHERS |
63aefcd5 MS |
1076 | if (!error) |
1077 | { | |
1078 | SSLCipherSuite supported[100]; /* Supported cipher suites */ | |
1079 | size_t num_supported; /* Number of supported cipher suites */ | |
1080 | SSLCipherSuite enabled[100]; /* Cipher suites to enable */ | |
1081 | size_t num_enabled; /* Number of cipher suites to enable */ | |
1082 | ||
1083 | num_supported = sizeof(supported) / sizeof(supported[0]); | |
1084 | error = SSLGetSupportedCiphers(http->tls, supported, &num_supported); | |
1085 | ||
1086 | if (!error) | |
1087 | { | |
1088 | DEBUG_printf(("4_httpTLSStart: %d cipher suites supported.", (int)num_supported)); | |
1089 | ||
1090 | for (i = 0, num_enabled = 0; i < (int)num_supported && num_enabled < (sizeof(enabled) / sizeof(enabled[0])); i ++) | |
1091 | { | |
1092 | switch (supported[i]) | |
1093 | { | |
1094 | /* Obviously insecure cipher suites that we never want to use */ | |
1095 | case SSL_NULL_WITH_NULL_NULL : | |
1096 | case SSL_RSA_WITH_NULL_MD5 : | |
1097 | case SSL_RSA_WITH_NULL_SHA : | |
1098 | case SSL_RSA_EXPORT_WITH_RC4_40_MD5 : | |
1099 | case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 : | |
1100 | case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1101 | case SSL_RSA_WITH_DES_CBC_SHA : | |
1102 | case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1103 | case SSL_DH_DSS_WITH_DES_CBC_SHA : | |
1104 | case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1105 | case SSL_DH_RSA_WITH_DES_CBC_SHA : | |
1106 | case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1107 | case SSL_DHE_DSS_WITH_DES_CBC_SHA : | |
1108 | case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1109 | case SSL_DHE_RSA_WITH_DES_CBC_SHA : | |
1110 | case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5 : | |
1111 | case SSL_DH_anon_WITH_RC4_128_MD5 : | |
1112 | case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA : | |
1113 | case SSL_DH_anon_WITH_DES_CBC_SHA : | |
1114 | case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA : | |
1115 | case SSL_FORTEZZA_DMS_WITH_NULL_SHA : | |
1116 | case TLS_DH_anon_WITH_AES_128_CBC_SHA : | |
1117 | case TLS_DH_anon_WITH_AES_256_CBC_SHA : | |
1118 | case TLS_ECDH_ECDSA_WITH_NULL_SHA : | |
1119 | case TLS_ECDHE_RSA_WITH_NULL_SHA : | |
1120 | case TLS_ECDH_anon_WITH_NULL_SHA : | |
1121 | case TLS_ECDH_anon_WITH_RC4_128_SHA : | |
1122 | case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA : | |
1123 | case TLS_ECDH_anon_WITH_AES_128_CBC_SHA : | |
1124 | case TLS_ECDH_anon_WITH_AES_256_CBC_SHA : | |
1125 | case TLS_RSA_WITH_NULL_SHA256 : | |
1126 | case TLS_DH_anon_WITH_AES_128_CBC_SHA256 : | |
1127 | case TLS_DH_anon_WITH_AES_256_CBC_SHA256 : | |
1128 | case TLS_PSK_WITH_NULL_SHA : | |
1129 | case TLS_DHE_PSK_WITH_NULL_SHA : | |
1130 | case TLS_RSA_PSK_WITH_NULL_SHA : | |
1131 | case TLS_DH_anon_WITH_AES_128_GCM_SHA256 : | |
1132 | case TLS_DH_anon_WITH_AES_256_GCM_SHA384 : | |
1133 | case TLS_PSK_WITH_NULL_SHA256 : | |
1134 | case TLS_PSK_WITH_NULL_SHA384 : | |
1135 | case TLS_DHE_PSK_WITH_NULL_SHA256 : | |
1136 | case TLS_DHE_PSK_WITH_NULL_SHA384 : | |
1137 | case TLS_RSA_PSK_WITH_NULL_SHA256 : | |
1138 | case TLS_RSA_PSK_WITH_NULL_SHA384 : | |
1139 | case SSL_RSA_WITH_DES_CBC_MD5 : | |
b37d45d9 | 1140 | DEBUG_printf(("4_httpTLSStart: Excluding insecure cipher suite %d", supported[i])); |
63aefcd5 MS |
1141 | break; |
1142 | ||
1143 | /* RC4 cipher suites that should only be used as a last resort */ | |
1144 | case SSL_RSA_WITH_RC4_128_MD5 : | |
1145 | case SSL_RSA_WITH_RC4_128_SHA : | |
1146 | case TLS_ECDH_ECDSA_WITH_RC4_128_SHA : | |
1147 | case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA : | |
1148 | case TLS_ECDH_RSA_WITH_RC4_128_SHA : | |
1149 | case TLS_ECDHE_RSA_WITH_RC4_128_SHA : | |
1150 | case TLS_PSK_WITH_RC4_128_SHA : | |
1151 | case TLS_DHE_PSK_WITH_RC4_128_SHA : | |
1152 | case TLS_RSA_PSK_WITH_RC4_128_SHA : | |
1153 | if (tls_options & _HTTP_TLS_ALLOW_RC4) | |
1154 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1155 | else |
1156 | DEBUG_printf(("4_httpTLSStart: Excluding RC4 cipher suite %d", supported[i])); | |
63aefcd5 MS |
1157 | break; |
1158 | ||
ee6226a5 MS |
1159 | /* DH/DHE cipher suites that are problematic with parameters < 1024 bits */ |
1160 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA : | |
1161 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA : | |
1162 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA : | |
1163 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA : | |
1164 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA : | |
1165 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA : | |
1166 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA : | |
1167 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA : | |
1168 | case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA : | |
1169 | case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA : | |
bdc4056c | 1170 | // case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA : |
ee6226a5 MS |
1171 | case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA : |
1172 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA256 : | |
1173 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA256 : | |
1174 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 : | |
1175 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 : | |
1176 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA256 : | |
1177 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA256 : | |
1178 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 : | |
1179 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 : | |
1180 | case TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA : | |
1181 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA : | |
1182 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA : | |
bdc4056c MS |
1183 | // case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 : |
1184 | // case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1185 | case TLS_DH_RSA_WITH_AES_128_GCM_SHA256 : |
1186 | case TLS_DH_RSA_WITH_AES_256_GCM_SHA384 : | |
bdc4056c MS |
1187 | // case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 : |
1188 | // case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1189 | case TLS_DH_DSS_WITH_AES_128_GCM_SHA256 : |
1190 | case TLS_DH_DSS_WITH_AES_256_GCM_SHA384 : | |
1191 | case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 : | |
1192 | case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 : | |
1193 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 : | |
1194 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 : | |
1195 | if (tls_options & _HTTP_TLS_ALLOW_DH) | |
1196 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1197 | else |
1198 | DEBUG_printf(("4_httpTLSStart: Excluding DH/DHE cipher suite %d", supported[i])); | |
ee6226a5 MS |
1199 | break; |
1200 | ||
63aefcd5 MS |
1201 | /* Anything else we'll assume is secure */ |
1202 | default : | |
1203 | enabled[num_enabled ++] = supported[i]; | |
1204 | break; | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | DEBUG_printf(("4_httpTLSStart: %d cipher suites enabled.", (int)num_enabled)); | |
1209 | error = SSLSetEnabledCiphers(http->tls, enabled, num_enabled); | |
1210 | } | |
2c85b752 | 1211 | } |
ee6226a5 | 1212 | #endif /* HAVE_SSLSETENABLEDCIPHERS */ |
2c85b752 | 1213 | |
41e0907c | 1214 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1215 | { |
41e0907c MS |
1216 | /* |
1217 | * Client: set client-side credentials, if any... | |
1218 | */ | |
1219 | ||
2c85b752 MS |
1220 | if (cg->client_cert_cb) |
1221 | { | |
1222 | error = SSLSetSessionOption(http->tls, | |
1223 | kSSLSessionOptionBreakOnCertRequested, true); | |
25731360 | 1224 | DEBUG_printf(("4_httpTLSStart: kSSLSessionOptionBreakOnCertRequested, " |
2c85b752 MS |
1225 | "error=%d", (int)error)); |
1226 | } | |
1227 | else | |
1228 | { | |
88f1e9c8 MS |
1229 | error = http_cdsa_set_credentials(http); |
1230 | DEBUG_printf(("4_httpTLSStart: http_cdsa_set_credentials, error=%d", | |
2c85b752 MS |
1231 | (int)error)); |
1232 | } | |
1233 | } | |
41e0907c MS |
1234 | else if (!error) |
1235 | { | |
1236 | /* | |
1237 | * Server: find/create a certificate for TLS... | |
1238 | */ | |
1239 | ||
1240 | if (http->fields[HTTP_FIELD_HOST][0]) | |
1241 | { | |
1242 | /* | |
1243 | * Use hostname for TLS upgrade... | |
1244 | */ | |
1245 | ||
1246 | strlcpy(hostname, http->fields[HTTP_FIELD_HOST], sizeof(hostname)); | |
1247 | } | |
1248 | else | |
1249 | { | |
1250 | /* | |
1251 | * Resolve hostname from connection address... | |
1252 | */ | |
1253 | ||
1254 | http_addr_t addr; /* Connection address */ | |
1255 | socklen_t addrlen; /* Length of address */ | |
1256 | ||
1257 | addrlen = sizeof(addr); | |
1258 | if (getsockname(http->fd, (struct sockaddr *)&addr, &addrlen)) | |
1259 | { | |
25731360 | 1260 | DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno))); |
41e0907c MS |
1261 | hostname[0] = '\0'; |
1262 | } | |
1263 | else if (httpAddrLocalhost(&addr)) | |
1264 | hostname[0] = '\0'; | |
1265 | else | |
a27a134a MS |
1266 | { |
1267 | httpAddrLookup(&addr, hostname, sizeof(hostname)); | |
25731360 | 1268 | DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname)); |
a27a134a | 1269 | } |
41e0907c MS |
1270 | } |
1271 | ||
eb66bc71 | 1272 | #ifdef HAVE_SECKEYCHAINOPEN |
a27a134a MS |
1273 | if (isdigit(hostname[0] & 255) || hostname[0] == '[') |
1274 | hostname[0] = '\0'; /* Don't allow numeric addresses */ | |
1275 | ||
41e0907c MS |
1276 | if (hostname[0]) |
1277 | http->tls_credentials = http_cdsa_copy_server(hostname); | |
1278 | else if (tls_common_name) | |
1279 | http->tls_credentials = http_cdsa_copy_server(tls_common_name); | |
1280 | ||
1281 | if (!http->tls_credentials && tls_auto_create && (hostname[0] || tls_common_name)) | |
1282 | { | |
25731360 | 1283 | DEBUG_printf(("4_httpTLSStart: Auto-create credentials for \"%s\".", hostname[0] ? hostname : tls_common_name)); |
41e0907c MS |
1284 | |
1285 | if (!cupsMakeServerCredentials(tls_keypath, hostname[0] ? hostname : tls_common_name, 0, NULL, time(NULL) + 365 * 86400)) | |
1286 | { | |
25731360 | 1287 | DEBUG_puts("4_httpTLSStart: cupsMakeServerCredentials failed."); |
41e0907c MS |
1288 | http->error = errno = EINVAL; |
1289 | http->status = HTTP_STATUS_ERROR; | |
1290 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create server credentials."), 1); | |
1291 | ||
1292 | return (-1); | |
1293 | } | |
1294 | ||
1295 | http->tls_credentials = http_cdsa_copy_server(hostname[0] ? hostname : tls_common_name); | |
1296 | } | |
eb66bc71 | 1297 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c MS |
1298 | |
1299 | if (!http->tls_credentials) | |
1300 | { | |
25731360 | 1301 | DEBUG_puts("4_httpTLSStart: Unable to find server credentials."); |
41e0907c MS |
1302 | http->error = errno = EINVAL; |
1303 | http->status = HTTP_STATUS_ERROR; | |
1304 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to find server credentials."), 1); | |
1305 | ||
1306 | return (-1); | |
1307 | } | |
1308 | ||
1309 | error = SSLSetCertificate(http->tls, http->tls_credentials); | |
1310 | ||
25731360 | 1311 | DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error)); |
41e0907c MS |
1312 | } |
1313 | ||
807315e6 | 1314 | DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", (void *)http->tls_credentials)); |
2c85b752 MS |
1315 | |
1316 | /* | |
1317 | * Let the server know which hostname/domain we are trying to connect to | |
1318 | * in case it wants to serve up a certificate with a matching common name. | |
1319 | */ | |
1320 | ||
41e0907c | 1321 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1322 | { |
41e0907c MS |
1323 | /* |
1324 | * Client: get the hostname to use for TLS... | |
1325 | */ | |
1326 | ||
1327 | if (httpAddrLocalhost(http->hostaddr)) | |
1328 | { | |
1329 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
1330 | } | |
1331 | else | |
1332 | { | |
1333 | /* | |
1334 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
1335 | */ | |
1336 | ||
1337 | strlcpy(hostname, http->hostname, sizeof(hostname)); | |
1338 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
1339 | *hostptr == '.') | |
1340 | *hostptr = '\0'; | |
1341 | } | |
1342 | ||
2c85b752 MS |
1343 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); |
1344 | ||
25731360 | 1345 | DEBUG_printf(("4_httpTLSStart: SSLSetPeerDomainName, error=%d", (int)error)); |
2c85b752 MS |
1346 | } |
1347 | ||
1348 | if (!error) | |
1349 | { | |
1350 | int done = 0; /* Are we done yet? */ | |
1351 | ||
1352 | while (!error && !done) | |
1353 | { | |
1354 | error = SSLHandshake(http->tls); | |
1355 | ||
25731360 | 1356 | DEBUG_printf(("4_httpTLSStart: SSLHandshake returned %d.", (int)error)); |
2c85b752 MS |
1357 | |
1358 | switch (error) | |
1359 | { | |
1360 | case noErr : | |
1361 | done = 1; | |
1362 | break; | |
1363 | ||
1364 | case errSSLWouldBlock : | |
1365 | error = noErr; /* Force a retry */ | |
1366 | usleep(1000); /* in 1 millisecond */ | |
1367 | break; | |
1368 | ||
1369 | case errSSLServerAuthCompleted : | |
1370 | error = 0; | |
1371 | if (cg->server_cert_cb) | |
1372 | { | |
1373 | error = httpCopyCredentials(http, &credentials); | |
1374 | if (!error) | |
1375 | { | |
1376 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
1377 | cg->server_cert_data); | |
1378 | httpFreeCredentials(credentials); | |
1379 | } | |
1380 | ||
25731360 | 1381 | DEBUG_printf(("4_httpTLSStart: Server certificate callback " |
2c85b752 MS |
1382 | "returned %d.", (int)error)); |
1383 | } | |
1384 | break; | |
1385 | ||
1386 | case errSSLClientCertRequested : | |
1387 | error = 0; | |
1388 | ||
1389 | if (cg->client_cert_cb) | |
1390 | { | |
1391 | names = NULL; | |
1392 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && | |
1393 | dn_array) | |
1394 | { | |
1395 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
1396 | { | |
1397 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
1398 | { | |
1399 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
1400 | ||
1401 | if ((credential = malloc(sizeof(*credential))) != NULL) | |
1402 | { | |
7e86f2f6 | 1403 | credential->datalen = (size_t)CFDataGetLength(data); |
2c85b752 MS |
1404 | if ((credential->data = malloc(credential->datalen))) |
1405 | { | |
1406 | memcpy((void *)credential->data, CFDataGetBytePtr(data), | |
1407 | credential->datalen); | |
1408 | cupsArrayAdd(names, credential); | |
1409 | } | |
1410 | else | |
1411 | free(credential); | |
1412 | } | |
1413 | } | |
1414 | } | |
1415 | ||
1416 | CFRelease(dn_array); | |
1417 | } | |
1418 | ||
1419 | if (!error) | |
1420 | { | |
1421 | error = (cg->client_cert_cb)(http, http->tls, names, | |
1422 | cg->client_cert_data); | |
1423 | ||
25731360 | 1424 | DEBUG_printf(("4_httpTLSStart: Client certificate callback " |
2c85b752 MS |
1425 | "returned %d.", (int)error)); |
1426 | } | |
1427 | ||
1428 | httpFreeCredentials(names); | |
1429 | } | |
1430 | break; | |
1431 | ||
1432 | case errSSLUnknownRootCert : | |
1433 | message = _("Unable to establish a secure connection to host " | |
1434 | "(untrusted certificate)."); | |
1435 | break; | |
1436 | ||
1437 | case errSSLNoRootCert : | |
1438 | message = _("Unable to establish a secure connection to host " | |
1439 | "(self-signed certificate)."); | |
1440 | break; | |
1441 | ||
1442 | case errSSLCertExpired : | |
1443 | message = _("Unable to establish a secure connection to host " | |
1444 | "(expired certificate)."); | |
1445 | break; | |
1446 | ||
1447 | case errSSLCertNotYetValid : | |
1448 | message = _("Unable to establish a secure connection to host " | |
1449 | "(certificate not yet valid)."); | |
1450 | break; | |
1451 | ||
1452 | case errSSLHostNameMismatch : | |
1453 | message = _("Unable to establish a secure connection to host " | |
1454 | "(host name mismatch)."); | |
1455 | break; | |
1456 | ||
1457 | case errSSLXCertChainInvalid : | |
1458 | message = _("Unable to establish a secure connection to host " | |
1459 | "(certificate chain invalid)."); | |
1460 | break; | |
1461 | ||
1462 | case errSSLConnectionRefused : | |
1463 | message = _("Unable to establish a secure connection to host " | |
1464 | "(peer dropped connection before responding)."); | |
1465 | break; | |
1466 | ||
1467 | default : | |
1468 | break; | |
1469 | } | |
1470 | } | |
1471 | } | |
1472 | ||
1473 | if (error) | |
1474 | { | |
1475 | http->error = error; | |
1476 | http->status = HTTP_STATUS_ERROR; | |
1477 | errno = ECONNREFUSED; | |
1478 | ||
1479 | CFRelease(http->tls); | |
1480 | http->tls = NULL; | |
1481 | ||
1482 | /* | |
1483 | * If an error string wasn't set by the callbacks use a generic one... | |
1484 | */ | |
1485 | ||
1486 | if (!message) | |
1487 | #ifdef HAVE_CSSMERRORSTRING | |
1488 | message = cssmErrorString(error); | |
1489 | #else | |
1490 | message = _("Unable to establish a secure connection to host."); | |
1491 | #endif /* HAVE_CSSMERRORSTRING */ | |
1492 | ||
1493 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); | |
1494 | ||
1495 | return (-1); | |
1496 | } | |
1497 | ||
1498 | return (0); | |
1499 | } | |
1500 | ||
1501 | ||
1502 | /* | |
25731360 | 1503 | * '_httpTLSStop()' - Shut down SSL/TLS on a connection. |
2c85b752 MS |
1504 | */ |
1505 | ||
25731360 MS |
1506 | void |
1507 | _httpTLSStop(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1508 | { |
1509 | while (SSLClose(http->tls) == errSSLWouldBlock) | |
1510 | usleep(1000); | |
1511 | ||
1512 | CFRelease(http->tls); | |
1513 | ||
1514 | if (http->tls_credentials) | |
1515 | CFRelease(http->tls_credentials); | |
1516 | ||
1517 | http->tls = NULL; | |
1518 | http->tls_credentials = NULL; | |
1519 | } | |
1520 | ||
1521 | ||
1522 | /* | |
25731360 | 1523 | * '_httpTLSWrite()' - Write to a SSL/TLS connection. |
2c85b752 MS |
1524 | */ |
1525 | ||
25731360 MS |
1526 | int /* O - Bytes written */ |
1527 | _httpTLSWrite(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1528 | const char *buf, /* I - Buffer holding data */ |
1529 | int len) /* I - Length of buffer */ | |
1530 | { | |
1531 | ssize_t result; /* Return value */ | |
1532 | OSStatus error; /* Error info */ | |
1533 | size_t processed; /* Number of bytes processed */ | |
1534 | ||
1535 | ||
807315e6 | 1536 | DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", (void *)http, (void *)buf, len)); |
2c85b752 | 1537 | |
7e86f2f6 | 1538 | error = SSLWrite(http->tls, buf, (size_t)len, &processed); |
2c85b752 MS |
1539 | |
1540 | switch (error) | |
1541 | { | |
1542 | case 0 : | |
1543 | result = (int)processed; | |
1544 | break; | |
1545 | ||
1546 | case errSSLWouldBlock : | |
1547 | if (processed) | |
1548 | { | |
1549 | result = (int)processed; | |
1550 | } | |
1551 | else | |
1552 | { | |
1553 | result = -1; | |
1554 | errno = EINTR; | |
1555 | } | |
1556 | break; | |
1557 | ||
1558 | case errSSLClosedGraceful : | |
1559 | default : | |
1560 | if (processed) | |
1561 | { | |
1562 | result = (int)processed; | |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | result = -1; | |
1567 | errno = EPIPE; | |
1568 | } | |
1569 | break; | |
1570 | } | |
1571 | ||
25731360 | 1572 | DEBUG_printf(("3_httpTLSWrite: Returning %d.", (int)result)); |
2c85b752 MS |
1573 | |
1574 | return ((int)result); | |
1575 | } | |
1576 | ||
1577 | ||
88f1e9c8 | 1578 | #ifdef HAVE_SECKEYCHAINOPEN |
2c85b752 | 1579 | /* |
88f1e9c8 | 1580 | * 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain. |
2c85b752 MS |
1581 | */ |
1582 | ||
88f1e9c8 MS |
1583 | static CFArrayRef /* O - Array of certificates or NULL */ |
1584 | http_cdsa_copy_server( | |
1585 | const char *common_name) /* I - Server's hostname */ | |
2c85b752 | 1586 | { |
88f1e9c8 MS |
1587 | OSStatus err; /* Error info */ |
1588 | SecIdentitySearchRef search = NULL; /* Search reference */ | |
1589 | SecIdentityRef identity = NULL;/* Identity */ | |
1590 | CFArrayRef certificates = NULL; | |
1591 | /* Certificate array */ | |
1592 | SecPolicyRef policy = NULL; /* Policy ref */ | |
1593 | CFStringRef cfcommon_name = NULL; | |
1594 | /* Server name */ | |
1595 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
1596 | CFArrayRef list = NULL; /* Keychain list */ | |
2c85b752 | 1597 | |
2c85b752 | 1598 | |
88f1e9c8 | 1599 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
2c85b752 | 1600 | |
88f1e9c8 MS |
1601 | policy = SecPolicyCreateSSL(1, cfcommon_name); |
1602 | ||
1603 | if (cfcommon_name) | |
1604 | CFRelease(cfcommon_name); | |
1605 | ||
1606 | if (!policy) | |
1607 | goto cleanup; | |
1608 | ||
1609 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
1610 | goto cleanup; | |
1611 | ||
f93b32b6 MS |
1612 | _cupsMutexLock(&tls_mutex); |
1613 | ||
88f1e9c8 MS |
1614 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks); |
1615 | ||
1616 | CFDictionaryAddValue(query, kSecClass, kSecClassIdentity); | |
1617 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); | |
1618 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
1619 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
1620 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
1621 | ||
1622 | CFRelease(list); | |
1623 | ||
1624 | err = SecItemCopyMatching(query, (CFTypeRef *)&identity); | |
1625 | ||
f93b32b6 MS |
1626 | _cupsMutexUnlock(&tls_mutex); |
1627 | ||
88f1e9c8 MS |
1628 | if (err) |
1629 | goto cleanup; | |
1630 | ||
1631 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
1632 | goto cleanup; | |
1633 | ||
1634 | if ((certificates = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks)) == NULL) | |
1635 | goto cleanup; | |
1636 | ||
1637 | cleanup : | |
1638 | ||
1639 | if (search) | |
1640 | CFRelease(search); | |
1641 | if (identity) | |
1642 | CFRelease(identity); | |
1643 | ||
1644 | if (policy) | |
1645 | CFRelease(policy); | |
1646 | if (query) | |
1647 | CFRelease(query); | |
1648 | ||
1649 | return (certificates); | |
2c85b752 | 1650 | } |
88f1e9c8 | 1651 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2c85b752 MS |
1652 | |
1653 | ||
2ece34a9 MS |
1654 | /* |
1655 | * 'http_cdsa_create_credential()' - Create a single credential in the internal format. | |
1656 | */ | |
1657 | ||
1658 | static SecCertificateRef /* O - Certificate */ | |
1659 | http_cdsa_create_credential( | |
1660 | http_credential_t *credential) /* I - Credential */ | |
1661 | { | |
1662 | if (!credential) | |
1663 | return (NULL); | |
1664 | ||
1665 | return (SecCertificateCreateWithBytes(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen)); | |
1666 | } | |
1667 | ||
1668 | ||
005f7f1f MS |
1669 | /* |
1670 | * 'http_cdsa_default_path()' - Get the default keychain path. | |
1671 | */ | |
1672 | ||
1673 | static const char * /* O - Keychain path */ | |
1674 | http_cdsa_default_path(char *buffer, /* I - Path buffer */ | |
1675 | size_t bufsize) /* I - Size of buffer */ | |
1676 | { | |
1677 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
1678 | ||
1679 | ||
1680 | if (getuid() && home) | |
1681 | snprintf(buffer, bufsize, "%s/Library/Keychains/login.keychain", home); | |
1682 | else | |
1683 | strlcpy(buffer, "/Library/Keychains/System.keychain", bufsize); | |
1684 | ||
1685 | DEBUG_printf(("1http_cdsa_default_path: Using default path \"%s\".", buffer)); | |
1686 | ||
1687 | return (buffer); | |
1688 | } | |
1689 | ||
1690 | ||
2c85b752 | 1691 | /* |
88f1e9c8 | 1692 | * 'http_cdsa_read()' - Read function for the CDSA library. |
2c85b752 MS |
1693 | */ |
1694 | ||
88f1e9c8 MS |
1695 | static OSStatus /* O - -1 on error, 0 on success */ |
1696 | http_cdsa_read( | |
1697 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1698 | void *data, /* I - Data buffer */ | |
1699 | size_t *dataLength) /* IO - Number of bytes */ | |
2c85b752 | 1700 | { |
88f1e9c8 MS |
1701 | OSStatus result; /* Return value */ |
1702 | ssize_t bytes; /* Number of bytes read */ | |
1703 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1704 | |
2c85b752 | 1705 | |
88f1e9c8 | 1706 | http = (http_t *)connection; |
2c85b752 | 1707 | |
88f1e9c8 | 1708 | if (!http->blocking) |
2c85b752 MS |
1709 | { |
1710 | /* | |
88f1e9c8 | 1711 | * Make sure we have data before we read... |
2c85b752 MS |
1712 | */ |
1713 | ||
88f1e9c8 MS |
1714 | while (!_httpWait(http, http->wait_value, 0)) |
1715 | { | |
1716 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1717 | continue; | |
1718 | ||
1719 | http->error = ETIMEDOUT; | |
1720 | return (-1); | |
1721 | } | |
2c85b752 MS |
1722 | } |
1723 | ||
88f1e9c8 | 1724 | do |
2c85b752 | 1725 | { |
88f1e9c8 | 1726 | bytes = recv(http->fd, data, *dataLength, 0); |
2c85b752 | 1727 | } |
88f1e9c8 | 1728 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
2c85b752 | 1729 | |
88f1e9c8 MS |
1730 | if ((size_t)bytes == *dataLength) |
1731 | { | |
1732 | result = 0; | |
1733 | } | |
1734 | else if (bytes > 0) | |
1735 | { | |
1736 | *dataLength = (size_t)bytes; | |
1737 | result = errSSLWouldBlock; | |
1738 | } | |
1739 | else | |
1740 | { | |
1741 | *dataLength = 0; | |
2c85b752 | 1742 | |
88f1e9c8 MS |
1743 | if (bytes == 0) |
1744 | result = errSSLClosedGraceful; | |
1745 | else if (errno == EAGAIN) | |
1746 | result = errSSLWouldBlock; | |
1747 | else | |
1748 | result = errSSLClosedAbort; | |
1749 | } | |
2c85b752 | 1750 | |
88f1e9c8 MS |
1751 | return (result); |
1752 | } | |
2c85b752 | 1753 | |
2c85b752 | 1754 | |
88f1e9c8 MS |
1755 | /* |
1756 | * 'http_cdsa_set_credentials()' - Set the TLS credentials. | |
1757 | */ | |
2c85b752 | 1758 | |
88f1e9c8 MS |
1759 | static int /* O - Status of connection */ |
1760 | http_cdsa_set_credentials(http_t *http) /* I - HTTP connection */ | |
1761 | { | |
1762 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
1763 | OSStatus error = 0; /* Error code */ | |
1764 | http_tls_credentials_t credentials = NULL; | |
1765 | /* TLS credentials */ | |
2c85b752 | 1766 | |
2c85b752 | 1767 | |
807315e6 | 1768 | DEBUG_printf(("7http_tls_set_credentials(%p)", (void *)http)); |
2c85b752 | 1769 | |
88f1e9c8 MS |
1770 | /* |
1771 | * Prefer connection specific credentials... | |
1772 | */ | |
2c85b752 | 1773 | |
88f1e9c8 MS |
1774 | if ((credentials = http->tls_credentials) == NULL) |
1775 | credentials = cg->tls_credentials; | |
2c85b752 | 1776 | |
88f1e9c8 MS |
1777 | if (credentials) |
1778 | { | |
1779 | error = SSLSetCertificate(http->tls, credentials); | |
1780 | DEBUG_printf(("4http_tls_set_credentials: SSLSetCertificate, error=%d", | |
1781 | (int)error)); | |
2c85b752 | 1782 | } |
88f1e9c8 MS |
1783 | else |
1784 | DEBUG_puts("4http_tls_set_credentials: No credentials to set."); | |
1785 | ||
1786 | return (error); | |
1787 | } | |
1788 | ||
1789 | ||
1790 | /* | |
1791 | * 'http_cdsa_write()' - Write function for the CDSA library. | |
1792 | */ | |
1793 | ||
1794 | static OSStatus /* O - -1 on error, 0 on success */ | |
1795 | http_cdsa_write( | |
1796 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1797 | const void *data, /* I - Data buffer */ | |
1798 | size_t *dataLength) /* IO - Number of bytes */ | |
1799 | { | |
1800 | OSStatus result; /* Return value */ | |
1801 | ssize_t bytes; /* Number of bytes read */ | |
1802 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1803 | |
2c85b752 | 1804 | |
88f1e9c8 MS |
1805 | http = (http_t *)connection; |
1806 | ||
1807 | do | |
2c85b752 | 1808 | { |
88f1e9c8 MS |
1809 | bytes = write(http->fd, data, *dataLength); |
1810 | } | |
1811 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); | |
1812 | ||
1813 | if ((size_t)bytes == *dataLength) | |
1814 | { | |
1815 | result = 0; | |
1816 | } | |
1817 | else if (bytes >= 0) | |
1818 | { | |
1819 | *dataLength = (size_t)bytes; | |
1820 | result = errSSLWouldBlock; | |
2c85b752 MS |
1821 | } |
1822 | else | |
88f1e9c8 MS |
1823 | { |
1824 | *dataLength = 0; | |
2c85b752 | 1825 | |
88f1e9c8 MS |
1826 | if (errno == EAGAIN) |
1827 | result = errSSLWouldBlock; | |
1828 | else | |
1829 | result = errSSLClosedAbort; | |
1830 | } | |
1831 | ||
1832 | return (result); | |
2c85b752 | 1833 | } |