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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 | * | |
7e86f2f6 | 6 | * Copyright 2007-2014 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 | ||
dafebafd | 18 | /**** This file is included from http.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 */ | |
eb66bc71 | 44 | #endif /* HAVE_SECKEYCHAINOPEN */ |
c0459938 MS |
45 | |
46 | ||
dafebafd MS |
47 | /* |
48 | * Local functions... | |
49 | */ | |
2c85b752 | 50 | |
eb66bc71 | 51 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 52 | static CFArrayRef http_cdsa_copy_server(const char *common_name); |
eb66bc71 | 53 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c | 54 | static OSStatus http_cdsa_read(SSLConnectionRef connection, void *data, size_t *dataLength); |
88f1e9c8 | 55 | static int http_cdsa_set_credentials(http_t *http); |
41e0907c | 56 | static OSStatus http_cdsa_write(SSLConnectionRef connection, const void *data, size_t *dataLength); |
2c85b752 MS |
57 | |
58 | ||
3af9ac9e MS |
59 | /* |
60 | * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair. | |
61 | * | |
62 | * @since CUPS 2.0@ | |
63 | */ | |
64 | ||
65 | int /* O - 1 on success, 0 on failure */ | |
66 | cupsMakeServerCredentials( | |
f93b32b6 | 67 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
68 | const char *common_name, /* I - Common name */ |
69 | int num_alt_names, /* I - Number of subject alternate names */ | |
70 | const char **alt_names, /* I - Subject Alternate Names */ | |
71 | time_t expiration_date) /* I - Expiration date */ | |
72 | { | |
eb66bc71 | 73 | #if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE) && defined(HAVE_SECKEYCHAINOPEN) |
f93b32b6 | 74 | char filename[1024]; /* Default keychain path */ |
41e0907c MS |
75 | int status = 0; /* Return status */ |
76 | OSStatus err; /* Error code (if any) */ | |
77 | CFStringRef cfcommon_name = NULL; | |
78 | /* CF string for server name */ | |
79 | SecIdentityRef ident = NULL; /* Identity */ | |
80 | SecKeyRef publicKey = NULL, | |
81 | /* Public key */ | |
82 | privateKey = NULL; | |
83 | /* Private key */ | |
84 | CFMutableDictionaryRef keyParams = NULL; | |
85 | /* Key generation parameters */ | |
86 | ||
87 | ||
172bdf5d MS |
88 | 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)); |
89 | ||
3af9ac9e MS |
90 | (void)num_alt_names; |
91 | (void)alt_names; | |
92 | (void)expiration_date; | |
93 | ||
f93b32b6 MS |
94 | if (!path) |
95 | { | |
96 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
97 | ||
98 | if (getuid() && home) | |
99 | snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home); | |
100 | else | |
101 | strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename)); | |
102 | ||
103 | path = filename; | |
104 | ||
105 | DEBUG_printf(("1cupsMakeServerCredentials: Using default path \"%s\".", path)); | |
106 | } | |
107 | ||
108 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); | |
41e0907c MS |
109 | if (!cfcommon_name) |
110 | goto cleanup; | |
111 | ||
112 | /* | |
113 | * Create a public/private key pair... | |
114 | */ | |
115 | ||
f93b32b6 | 116 | keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); |
41e0907c MS |
117 | if (!keyParams) |
118 | goto cleanup; | |
119 | ||
120 | CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeRSA); | |
121 | CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048")); | |
f93b32b6 | 122 | CFDictionaryAddValue(keyParams, kSecAttrLabel, CFSTR("CUPS Self-Signed Certificate")); |
41e0907c MS |
123 | |
124 | err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey); | |
125 | if (err != noErr) | |
126 | goto cleanup; | |
127 | ||
128 | /* | |
129 | * Create a self-signed certificate using the public/private key pair... | |
130 | */ | |
131 | ||
132 | CFIndex usageInt = kSecKeyUsageAll; | |
133 | CFNumberRef usage = CFNumberCreate(alloc, kCFNumberCFIndexType, &usageInt); | |
134 | CFDictionaryRef certParams = CFDictionaryCreateMutable(kCFAllocatorDefault, | |
135 | kSecCSRBasicContraintsPathLen, CFINT(0), kSecSubjectAltName, cfcommon_name, kSecCertificateKeyUsage, usage, NULL, NULL); | |
136 | CFRelease(usage); | |
137 | ||
138 | const void *ca_o[] = { kSecOidOrganization, CFSTR("") }; | |
139 | const void *ca_cn[] = { kSecOidCommonName, cfcommon_name }; | |
140 | CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL); | |
141 | CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL); | |
142 | const void *ca_dn_array[2]; | |
143 | ||
144 | ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL); | |
145 | ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL); | |
146 | ||
147 | CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL); | |
148 | SecCertificateRef cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey); | |
149 | CFRelease(subject); | |
150 | CFRelease(certParams); | |
151 | ||
152 | if (!cert) | |
153 | goto cleanup; | |
154 | ||
155 | ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey); | |
156 | ||
157 | if (ident) | |
158 | status = 1; | |
159 | ||
160 | /* | |
161 | * Cleanup and return... | |
162 | */ | |
163 | ||
164 | cleanup: | |
165 | ||
166 | if (cfcommon_name) | |
167 | CFRelease(cfcommon_name); | |
168 | ||
169 | if (keyParams) | |
170 | CFRelease(keyParams); | |
171 | ||
172 | if (ident) | |
173 | CFRelease(ident); | |
174 | ||
175 | if (cert) | |
176 | CFRelease(cert); | |
177 | ||
178 | if (publicKey) | |
179 | CFRelease(publicKey); | |
180 | ||
181 | if (privateKey) | |
182 | CFRelease(publicKey); | |
183 | ||
184 | return (status); | |
185 | ||
eb66bc71 | 186 | #else /* !(HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN) */ |
41e0907c | 187 | int pid, /* Process ID of command */ |
7d58a105 MS |
188 | status, /* Status of command */ |
189 | i; /* Looping var */ | |
41e0907c MS |
190 | char command[1024], /* Command */ |
191 | *argv[4], /* Command-line arguments */ | |
7d58a105 MS |
192 | *envp[1000], /* Environment variables */ |
193 | days[32], /* CERTTOOL_EXPIRATION_DAYS env var */ | |
41e0907c | 194 | keychain[1024], /* Keychain argument */ |
f93b32b6 MS |
195 | infofile[1024], /* Type-in information for cert */ |
196 | filename[1024]; /* Default keychain path */ | |
41e0907c MS |
197 | cups_file_t *fp; /* Seed/info file */ |
198 | ||
199 | ||
172bdf5d MS |
200 | 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)); |
201 | ||
41e0907c MS |
202 | (void)num_alt_names; |
203 | (void)alt_names; | |
41e0907c | 204 | |
f93b32b6 MS |
205 | if (!path) |
206 | { | |
207 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
208 | ||
209 | if (getuid() && home) | |
210 | snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home); | |
211 | else | |
212 | strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename)); | |
213 | ||
214 | path = filename; | |
215 | ||
216 | DEBUG_printf(("1cupsMakeServerCredentials: Using default path \"%s\".", path)); | |
217 | } | |
218 | ||
41e0907c MS |
219 | /* |
220 | * Run the "certtool" command to generate a self-signed certificate... | |
221 | */ | |
222 | ||
223 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
224 | return (-1); | |
225 | ||
226 | /* | |
227 | * Create a file with the certificate information fields... | |
228 | * | |
229 | * Note: This assumes that the default questions are asked by the certtool | |
230 | * command... | |
231 | */ | |
232 | ||
233 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
234 | return (-1); | |
235 | ||
236 | cupsFilePrintf(fp, | |
237 | "CUPS Self-Signed Certificate\n" | |
238 | /* Enter key and certificate label */ | |
239 | "r\n" /* Generate RSA key pair */ | |
240 | "2048\n" /* Key size in bits */ | |
241 | "y\n" /* OK (y = yes) */ | |
242 | "b\n" /* Usage (b=signing/encryption) */ | |
243 | "s\n" /* Sign with SHA1 */ | |
244 | "y\n" /* OK (y = yes) */ | |
245 | "%s\n" /* Common name */ | |
246 | "\n" /* Country (default) */ | |
247 | "\n" /* Organization (default) */ | |
248 | "\n" /* Organizational unit (default) */ | |
249 | "\n" /* State/Province (default) */ | |
250 | "\n" /* Email address */ | |
251 | "y\n", /* OK (y = yes) */ | |
252 | common_name); | |
253 | cupsFileClose(fp); | |
254 | ||
255 | snprintf(keychain, sizeof(keychain), "k=%s", path); | |
256 | ||
257 | argv[0] = "certtool"; | |
258 | argv[1] = "c"; | |
259 | argv[2] = keychain; | |
260 | argv[3] = NULL; | |
261 | ||
7d58a105 MS |
262 | snprintf(days, sizeof(days), "CERTTOOL_EXPIRATION_DAYS=%d", (int)((expiration_date - time(NULL) + 86399) / 86400)); |
263 | envp[0] = days; | |
264 | for (i = 0; i < (int)(sizeof(envp) / sizeof(envp[0]) - 2) && environ[i]; i ++) | |
265 | envp[i + 1] = environ[i]; | |
266 | envp[i] = NULL; | |
267 | ||
41e0907c MS |
268 | posix_spawn_file_actions_t actions; /* File actions */ |
269 | ||
270 | posix_spawn_file_actions_init(&actions); | |
271 | posix_spawn_file_actions_addclose(&actions, 0); | |
272 | posix_spawn_file_actions_addopen(&actions, 0, infofile, O_RDONLY, 0); | |
f93b32b6 MS |
273 | posix_spawn_file_actions_addclose(&actions, 1); |
274 | posix_spawn_file_actions_addopen(&actions, 1, "/dev/null", O_WRONLY, 0); | |
275 | posix_spawn_file_actions_addclose(&actions, 2); | |
276 | posix_spawn_file_actions_addopen(&actions, 2, "/dev/null", O_WRONLY, 0); | |
41e0907c | 277 | |
7d58a105 | 278 | if (posix_spawn(&pid, command, &actions, NULL, argv, envp)) |
41e0907c MS |
279 | { |
280 | unlink(infofile); | |
281 | return (-1); | |
282 | } | |
283 | ||
284 | posix_spawn_file_actions_destroy(&actions); | |
285 | ||
286 | unlink(infofile); | |
287 | ||
288 | while (waitpid(pid, &status, 0) < 0) | |
289 | if (errno != EINTR) | |
290 | { | |
291 | status = -1; | |
292 | break; | |
293 | } | |
294 | ||
295 | return (!status); | |
eb66bc71 | 296 | #endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
297 | } |
298 | ||
299 | ||
300 | /* | |
301 | * 'cupsSetServerCredentials()' - Set the default server credentials. | |
302 | * | |
303 | * Note: The server credentials are used by all threads in the running process. | |
304 | * This function is threadsafe. | |
305 | * | |
306 | * @since CUPS 2.0@ | |
307 | */ | |
308 | ||
309 | int /* O - 1 on success, 0 on failure */ | |
310 | cupsSetServerCredentials( | |
f93b32b6 | 311 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
312 | const char *common_name, /* I - Default common name for server */ |
313 | int auto_create) /* I - 1 = automatically create self-signed certificates */ | |
314 | { | |
a27a134a MS |
315 | DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create)); |
316 | ||
eb66bc71 | 317 | #ifdef HAVE_SECKEYCHAINOPEN |
f93b32b6 | 318 | char filename[1024]; /* Filename for keychain */ |
c0459938 | 319 | SecKeychainRef keychain = NULL;/* Temporary keychain */ |
3af9ac9e | 320 | |
c0459938 | 321 | |
f93b32b6 MS |
322 | if (!path) |
323 | { | |
324 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
325 | ||
326 | if (getuid() && home) | |
327 | snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home); | |
328 | else | |
329 | strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename)); | |
330 | ||
331 | path = filename; | |
332 | ||
333 | DEBUG_printf(("1cupsSetServerCredentials: Using default path \"%s\".", path)); | |
334 | } | |
335 | ||
c0459938 MS |
336 | if (SecKeychainOpen(path, &keychain) != noErr) |
337 | { | |
338 | /* TODO: Set cups last error string */ | |
a27a134a | 339 | DEBUG_puts("1cupsSetServerCredentials: Unable to open keychain, returning 0."); |
c0459938 MS |
340 | return (0); |
341 | } | |
342 | ||
343 | _cupsMutexLock(&tls_mutex); | |
344 | ||
345 | /* | |
346 | * Close any keychain that is currently open... | |
347 | */ | |
348 | ||
349 | if (tls_keychain) | |
350 | CFRelease(tls_keychain); | |
351 | ||
41e0907c MS |
352 | if (tls_keypath) |
353 | _cupsStrFree(tls_keypath); | |
354 | ||
c0459938 MS |
355 | if (tls_common_name) |
356 | _cupsStrFree(tls_common_name); | |
357 | ||
358 | /* | |
359 | * Save the new keychain... | |
360 | */ | |
361 | ||
362 | tls_keychain = keychain; | |
41e0907c | 363 | tls_keypath = _cupsStrAlloc(path); |
c0459938 MS |
364 | tls_auto_create = auto_create; |
365 | tls_common_name = _cupsStrAlloc(common_name); | |
366 | ||
367 | _cupsMutexUnlock(&tls_mutex); | |
368 | ||
a27a134a | 369 | DEBUG_puts("1cupsSetServerCredentials: Opened keychain, returning 1."); |
c0459938 | 370 | return (1); |
eb66bc71 MS |
371 | |
372 | #else | |
a27a134a | 373 | DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0."); |
eb66bc71 MS |
374 | return (0); |
375 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
3af9ac9e MS |
376 | } |
377 | ||
2c85b752 MS |
378 | |
379 | /* | |
380 | * 'httpCopyCredentials()' - Copy the credentials associated with the peer in | |
381 | * an encrypted connection. | |
382 | * | |
383 | * @since CUPS 1.5/OS X 10.7@ | |
384 | */ | |
385 | ||
386 | int /* O - Status of call (0 = success) */ | |
387 | httpCopyCredentials( | |
388 | http_t *http, /* I - Connection to server */ | |
389 | cups_array_t **credentials) /* O - Array of credentials */ | |
390 | { | |
391 | OSStatus error; /* Error code */ | |
392 | SecTrustRef peerTrust; /* Peer trust reference */ | |
393 | CFIndex count; /* Number of credentials */ | |
394 | SecCertificateRef secCert; /* Certificate reference */ | |
395 | CFDataRef data; /* Certificate data */ | |
396 | int i; /* Looping var */ | |
397 | ||
398 | ||
376d7c69 MS |
399 | DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", http, credentials)); |
400 | ||
2c85b752 MS |
401 | if (credentials) |
402 | *credentials = NULL; | |
403 | ||
404 | if (!http || !http->tls || !credentials) | |
405 | return (-1); | |
406 | ||
407 | if (!(error = SSLCopyPeerTrust(http->tls, &peerTrust)) && peerTrust) | |
408 | { | |
376d7c69 MS |
409 | DEBUG_printf(("2httpCopyCredentials: Peer provided %d certificates.", (int)SecTrustGetCertificateCount(peerTrust))); |
410 | ||
2c85b752 MS |
411 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) |
412 | { | |
413 | count = SecTrustGetCertificateCount(peerTrust); | |
414 | ||
415 | for (i = 0; i < count; i ++) | |
416 | { | |
417 | secCert = SecTrustGetCertificateAtIndex(peerTrust, i); | |
376d7c69 MS |
418 | |
419 | #ifdef DEBUG | |
420 | CFStringRef cf_name = SecCertificateCopySubjectSummary(secCert); | |
421 | char name[1024]; | |
422 | if (cf_name) | |
423 | CFStringGetCString(cf_name, name, sizeof(name), kCFStringEncodingUTF8); | |
424 | else | |
425 | strlcpy(name, "unknown", sizeof(name)); | |
426 | ||
427 | DEBUG_printf(("2httpCopyCredentials: Certificate %d name is \"%s\".", i, name)); | |
428 | #endif /* DEBUG */ | |
429 | ||
88f1e9c8 | 430 | if ((data = SecCertificateCopyData(secCert)) != NULL) |
2c85b752 | 431 | { |
376d7c69 MS |
432 | DEBUG_printf(("2httpCopyCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); |
433 | ||
7e86f2f6 | 434 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); |
2c85b752 MS |
435 | CFRelease(data); |
436 | } | |
437 | } | |
438 | } | |
439 | ||
440 | CFRelease(peerTrust); | |
441 | } | |
442 | ||
443 | return (error); | |
444 | } | |
445 | ||
446 | ||
9653cfdf MS |
447 | /* |
448 | * 'http_cdsa_create_credential()' - Create a single credential in the internal format. | |
449 | */ | |
450 | ||
451 | static SecCertificateRef /* O - Certificate */ | |
452 | http_cdsa_create_credential( | |
453 | http_credential_t *credential) /* I - Credential */ | |
454 | { | |
455 | if (!credential) | |
456 | return (NULL); | |
457 | ||
458 | return (SecCertificateCreateWithBytes(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen)); | |
459 | } | |
460 | ||
461 | ||
2c85b752 MS |
462 | /* |
463 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
464 | */ | |
465 | ||
466 | http_tls_credentials_t /* O - Internal credentials */ | |
467 | _httpCreateCredentials( | |
468 | cups_array_t *credentials) /* I - Array of credentials */ | |
469 | { | |
470 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
471 | SecCertificateRef secCert; /* Certificate reference */ | |
2c85b752 MS |
472 | http_credential_t *credential; /* Credential data */ |
473 | ||
474 | ||
475 | if (!credentials) | |
476 | return (NULL); | |
477 | ||
478 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
479 | cupsArrayCount(credentials), | |
480 | &kCFTypeArrayCallBacks)) == NULL) | |
481 | return (NULL); | |
482 | ||
483 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
484 | credential; | |
485 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
486 | { | |
9653cfdf | 487 | if ((secCert = http_cdsa_create_credential(credential)) != NULL) |
2c85b752 | 488 | { |
9653cfdf MS |
489 | CFArrayAppendValue(peerCerts, secCert); |
490 | CFRelease(secCert); | |
2c85b752 MS |
491 | } |
492 | } | |
493 | ||
494 | return (peerCerts); | |
495 | } | |
496 | ||
497 | ||
3af9ac9e | 498 | /* |
524c65e6 | 499 | * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name. |
3af9ac9e MS |
500 | * |
501 | * @since CUPS 2.0@ | |
502 | */ | |
503 | ||
524c65e6 MS |
504 | int /* O - 1 if valid, 0 otherwise */ |
505 | httpCredentialsAreValidForName( | |
506 | cups_array_t *credentials, /* I - Credentials */ | |
507 | const char *common_name) /* I - Name to check */ | |
508 | { | |
509 | SecCertificateRef secCert; /* Certificate reference */ | |
510 | CFStringRef cfcert_name = NULL; | |
511 | /* Certificate's common name (CF string) */ | |
512 | char cert_name[256]; /* Certificate's common name (C string) */ | |
513 | int valid = 1; /* Valid name? */ | |
514 | ||
515 | ||
516 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
517 | return (0); | |
518 | ||
519 | /* | |
520 | * Compare the common names... | |
521 | */ | |
522 | ||
523 | if ((cfcert_name = SecCertificateCopySubjectSummary(secCert)) == NULL) | |
524 | { | |
525 | /* | |
526 | * Can't get common name, cannot be valid... | |
527 | */ | |
528 | ||
529 | valid = 0; | |
530 | } | |
531 | else if (CFStringGetCString(cfcert_name, cert_name, sizeof(cert_name), kCFStringEncodingUTF8) && | |
532 | _cups_strcasecmp(common_name, cert_name)) | |
533 | { | |
534 | /* | |
535 | * Not an exact match for the common name, check for wildcard certs... | |
536 | */ | |
537 | ||
538 | const char *domain = strchr(common_name, '.'); | |
539 | /* Domain in common name */ | |
540 | ||
541 | if (strncmp(cert_name, "*.", 2) || !domain || _cups_strcasecmp(domain, cert_name + 1)) | |
542 | { | |
543 | /* | |
544 | * Not a wildcard match. | |
545 | */ | |
546 | ||
547 | /* TODO: Check subject alternate names */ | |
548 | valid = 0; | |
549 | } | |
550 | } | |
551 | ||
552 | if (cfcert_name) | |
553 | CFRelease(cfcert_name); | |
554 | ||
555 | CFRelease(secCert); | |
556 | ||
557 | return (valid); | |
558 | } | |
559 | ||
560 | ||
561 | /* | |
562 | * 'httpCredentialsGetTrust()' - Return the trust of credentials. | |
563 | * | |
564 | * @since CUPS 2.0@ | |
565 | */ | |
566 | ||
567 | http_trust_t /* O - Level of trust */ | |
568 | httpCredentialsGetTrust( | |
376d7c69 MS |
569 | cups_array_t *credentials, /* I - Credentials */ |
570 | const char *common_name) /* I - Common name for trust lookup */ | |
3af9ac9e | 571 | { |
9653cfdf | 572 | SecCertificateRef secCert; /* Certificate reference */ |
524c65e6 MS |
573 | http_trust_t trust = HTTP_TRUST_OK; |
574 | /* Trusted? */ | |
376d7c69 | 575 | cups_array_t *tcreds = NULL; /* Trusted credentials */ |
9653cfdf MS |
576 | _cups_globals_t *cg = _cupsGlobals(); |
577 | /* Per-thread globals */ | |
3af9ac9e | 578 | |
9653cfdf | 579 | |
376d7c69 | 580 | if (!common_name) |
524c65e6 | 581 | return (HTTP_TRUST_UNKNOWN); |
376d7c69 | 582 | |
9653cfdf | 583 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
524c65e6 | 584 | return (HTTP_TRUST_UNKNOWN); |
9653cfdf | 585 | |
376d7c69 | 586 | /* |
88f1e9c8 | 587 | * Look this common name up in the default keychains... |
376d7c69 MS |
588 | */ |
589 | ||
88f1e9c8 | 590 | httpLoadCredentials(NULL, &tcreds, common_name); |
376d7c69 MS |
591 | |
592 | if (tcreds) | |
593 | { | |
594 | char credentials_str[1024], /* String for incoming credentials */ | |
595 | tcreds_str[1024]; /* String for saved credentials */ | |
596 | ||
597 | httpCredentialsString(credentials, credentials_str, sizeof(credentials_str)); | |
598 | httpCredentialsString(tcreds, tcreds_str, sizeof(tcreds_str)); | |
599 | ||
600 | if (strcmp(credentials_str, tcreds_str)) | |
601 | { | |
602 | /* | |
603 | * Credentials don't match, let's look at the expiration date of the new | |
604 | * credentials and allow if the new ones have a later expiration... | |
605 | */ | |
606 | ||
607 | if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds) || | |
524c65e6 | 608 | !httpCredentialsAreValidForName(credentials, common_name)) |
376d7c69 MS |
609 | { |
610 | /* | |
611 | * Either the new credentials are not newly issued, or the common name | |
612 | * does not match the issued certificate... | |
613 | */ | |
614 | ||
524c65e6 | 615 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 616 | } |
524c65e6 | 617 | else if (httpCredentialsGetExpiration(tcreds) < time(NULL)) |
376d7c69 MS |
618 | { |
619 | /* | |
524c65e6 | 620 | * Save the renewed credentials... |
376d7c69 MS |
621 | */ |
622 | ||
524c65e6 MS |
623 | trust = HTTP_TRUST_RENEWED; |
624 | ||
625 | httpSaveCredentials(NULL, credentials, common_name); | |
376d7c69 MS |
626 | } |
627 | } | |
628 | ||
629 | httpFreeCredentials(tcreds); | |
630 | } | |
f51f3773 | 631 | else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name)) |
524c65e6 | 632 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 633 | |
9653cfdf | 634 | if (!cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent())) |
524c65e6 | 635 | trust = HTTP_TRUST_EXPIRED; |
25731360 | 636 | else if (!cg->any_root && cupsArrayCount(credentials) == 1) |
524c65e6 | 637 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 638 | |
9653cfdf MS |
639 | CFRelease(secCert); |
640 | ||
524c65e6 | 641 | return (trust); |
3af9ac9e MS |
642 | } |
643 | ||
644 | ||
645 | /* | |
646 | * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials. | |
647 | * | |
648 | * @since CUPS 2.0@ | |
649 | */ | |
650 | ||
651 | time_t /* O - Expiration date of credentials */ | |
652 | httpCredentialsGetExpiration( | |
653 | cups_array_t *credentials) /* I - Credentials */ | |
654 | { | |
9653cfdf MS |
655 | SecCertificateRef secCert; /* Certificate reference */ |
656 | time_t expiration; /* Expiration date */ | |
3af9ac9e | 657 | |
9653cfdf MS |
658 | |
659 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
660 | return (0); | |
661 | ||
376d7c69 | 662 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); |
9653cfdf MS |
663 | |
664 | CFRelease(secCert); | |
665 | ||
666 | return (expiration); | |
3af9ac9e MS |
667 | } |
668 | ||
669 | ||
72d05bc9 MS |
670 | /* |
671 | * 'httpCredentialsString()' - Return a string representing the credentials. | |
672 | * | |
673 | * @since CUPS 2.0@ | |
674 | */ | |
675 | ||
676 | size_t /* O - Total size of credentials string */ | |
677 | httpCredentialsString( | |
678 | cups_array_t *credentials, /* I - Credentials */ | |
679 | char *buffer, /* I - Buffer or @code NULL@ */ | |
680 | size_t bufsize) /* I - Size of buffer */ | |
681 | { | |
376d7c69 | 682 | http_credential_t *first; /* First certificate */ |
9653cfdf | 683 | SecCertificateRef secCert; /* Certificate reference */ |
9653cfdf MS |
684 | |
685 | ||
376d7c69 MS |
686 | DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", credentials, buffer, CUPS_LLCAST bufsize)); |
687 | ||
9653cfdf MS |
688 | if (!buffer) |
689 | return (0); | |
72d05bc9 MS |
690 | |
691 | if (buffer && bufsize > 0) | |
692 | *buffer = '\0'; | |
693 | ||
376d7c69 MS |
694 | if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL && |
695 | (secCert = http_cdsa_create_credential(first)) != NULL) | |
9653cfdf | 696 | { |
376d7c69 MS |
697 | CFStringRef cf_name; /* CF common name string */ |
698 | char name[256]; /* Common name associated with cert */ | |
699 | time_t expiration; /* Expiration date of cert */ | |
700 | _cups_md5_state_t md5_state; /* MD5 state */ | |
701 | unsigned char md5_digest[16]; /* MD5 result */ | |
702 | ||
703 | if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL) | |
9653cfdf | 704 | { |
376d7c69 MS |
705 | CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8); |
706 | CFRelease(cf_name); | |
9653cfdf | 707 | } |
376d7c69 MS |
708 | else |
709 | strlcpy(name, "unknown", sizeof(name)); | |
710 | ||
711 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); | |
712 | ||
713 | _cupsMD5Init(&md5_state); | |
714 | _cupsMD5Append(&md5_state, first->data, (int)first->datalen); | |
715 | _cupsMD5Finish(&md5_state, md5_digest); | |
716 | ||
717 | 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 |
718 | |
719 | CFRelease(secCert); | |
720 | } | |
721 | ||
376d7c69 MS |
722 | DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer)); |
723 | ||
9653cfdf | 724 | return (strlen(buffer)); |
72d05bc9 MS |
725 | } |
726 | ||
727 | ||
2c85b752 MS |
728 | /* |
729 | * '_httpFreeCredentials()' - Free internal credentials. | |
730 | */ | |
731 | ||
732 | void | |
733 | _httpFreeCredentials( | |
734 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
735 | { | |
736 | if (!credentials) | |
737 | return; | |
738 | ||
739 | CFRelease(credentials); | |
740 | } | |
741 | ||
742 | ||
72d05bc9 MS |
743 | /* |
744 | * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file. | |
745 | * | |
746 | * @since CUPS 2.0@ | |
747 | */ | |
748 | ||
dafebafd | 749 | int /* O - 0 on success, -1 on error */ |
72d05bc9 | 750 | httpLoadCredentials( |
f93b32b6 | 751 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
752 | cups_array_t **credentials, /* IO - Credentials */ |
753 | const char *common_name) /* I - Common name for credentials */ | |
754 | { | |
88f1e9c8 | 755 | #ifdef HAVE_SECKEYCHAINOPEN |
dafebafd | 756 | OSStatus err; /* Error info */ |
88f1e9c8 | 757 | char filename[1024]; /* Filename for keychain */ |
dafebafd MS |
758 | SecKeychainRef keychain = NULL;/* Keychain reference */ |
759 | SecIdentitySearchRef search = NULL; /* Search reference */ | |
88f1e9c8 MS |
760 | SecCertificateRef cert = NULL; /* Certificate */ |
761 | CFDataRef data; /* Certificate data */ | |
dafebafd MS |
762 | SecPolicyRef policy = NULL; /* Policy ref */ |
763 | CFStringRef cfcommon_name = NULL; | |
764 | /* Server name */ | |
765 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
766 | CFArrayRef list = NULL; /* Keychain list */ | |
767 | ||
768 | ||
88f1e9c8 MS |
769 | DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name)); |
770 | ||
771 | if (!credentials) | |
772 | return (-1); | |
773 | ||
774 | *credentials = NULL; | |
775 | ||
776 | if (!path) | |
777 | { | |
778 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
779 | ||
780 | if (getuid() && home) | |
781 | snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home); | |
782 | else | |
783 | strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename)); | |
784 | ||
785 | path = filename; | |
786 | ||
787 | DEBUG_printf(("1httpLoadCredentials: Using default path \"%s\".", path)); | |
788 | } | |
789 | ||
88f1e9c8 | 790 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
dafebafd MS |
791 | goto cleanup; |
792 | ||
793 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); | |
794 | ||
795 | policy = SecPolicyCreateSSL(1, cfcommon_name); | |
796 | ||
797 | if (cfcommon_name) | |
798 | CFRelease(cfcommon_name); | |
799 | ||
800 | if (!policy) | |
801 | goto cleanup; | |
802 | ||
803 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
804 | goto cleanup; | |
805 | ||
88f1e9c8 | 806 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks); |
dafebafd | 807 | |
88f1e9c8 | 808 | CFDictionaryAddValue(query, kSecClass, kSecClassCertificate); |
dafebafd MS |
809 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); |
810 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
811 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
812 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
813 | ||
814 | CFRelease(list); | |
815 | ||
88f1e9c8 | 816 | err = SecItemCopyMatching(query, (CFTypeRef *)&cert); |
dafebafd MS |
817 | |
818 | if (err) | |
819 | goto cleanup; | |
820 | ||
88f1e9c8 | 821 | if (CFGetTypeID(cert) != SecCertificateGetTypeID()) |
dafebafd MS |
822 | goto cleanup; |
823 | ||
88f1e9c8 MS |
824 | if ((data = SecCertificateCopyData(cert)) != NULL) |
825 | { | |
826 | DEBUG_printf(("1httpLoadCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); | |
827 | ||
828 | *credentials = cupsArrayNew(NULL, NULL); | |
829 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); | |
830 | CFRelease(data); | |
831 | } | |
dafebafd MS |
832 | |
833 | cleanup : | |
834 | ||
835 | if (keychain) | |
836 | CFRelease(keychain); | |
837 | if (search) | |
838 | CFRelease(search); | |
88f1e9c8 MS |
839 | if (cert) |
840 | CFRelease(cert); | |
dafebafd MS |
841 | if (policy) |
842 | CFRelease(policy); | |
843 | if (query) | |
844 | CFRelease(query); | |
845 | ||
88f1e9c8 MS |
846 | DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1)); |
847 | ||
848 | return (*credentials ? 0 : -1); | |
849 | ||
850 | #else | |
851 | (void)path; | |
852 | (void)credentials; | |
853 | (void)common_name; | |
854 | ||
855 | return (-1); | |
856 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
72d05bc9 MS |
857 | } |
858 | ||
859 | ||
72d05bc9 MS |
860 | /* |
861 | * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file. | |
862 | * | |
863 | * @since CUPS 2.0@ | |
864 | */ | |
865 | ||
866 | int /* O - -1 on error, 0 on success */ | |
867 | httpSaveCredentials( | |
f93b32b6 | 868 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
869 | cups_array_t *credentials, /* I - Credentials */ |
870 | const char *common_name) /* I - Common name for credentials */ | |
871 | { | |
eb66bc71 | 872 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 873 | int ret = -1; /* Return value */ |
41e0907c | 874 | OSStatus err; /* Error info */ |
88f1e9c8 MS |
875 | char filename[1024]; /* Filename for keychain */ |
876 | SecKeychainRef keychain = NULL;/* Keychain reference */ | |
41e0907c | 877 | SecIdentitySearchRef search = NULL; /* Search reference */ |
88f1e9c8 | 878 | SecCertificateRef cert = NULL; /* Certificate */ |
88f1e9c8 | 879 | CFMutableDictionaryRef attrs = NULL; /* Attributes for add */ |
41e0907c MS |
880 | CFArrayRef list = NULL; /* Keychain list */ |
881 | ||
882 | ||
88f1e9c8 MS |
883 | DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name)); |
884 | if (!credentials) | |
41e0907c MS |
885 | goto cleanup; |
886 | ||
524c65e6 MS |
887 | if (!httpCredentialsAreValidForName(credentials, common_name)) |
888 | { | |
889 | DEBUG_puts("1httpSaveCredentials: Common name does not match."); | |
890 | return (-1); | |
891 | } | |
892 | ||
88f1e9c8 MS |
893 | if ((cert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
894 | { | |
895 | DEBUG_puts("1httpSaveCredentials: Unable to create certificate."); | |
41e0907c | 896 | goto cleanup; |
88f1e9c8 | 897 | } |
41e0907c | 898 | |
88f1e9c8 | 899 | if (!path) |
2c85b752 | 900 | { |
88f1e9c8 | 901 | const char *home = getenv("HOME"); /* HOME environment variable */ |
2c85b752 | 902 | |
88f1e9c8 MS |
903 | if (getuid() && home) |
904 | snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home); | |
905 | else | |
906 | strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename)); | |
2c85b752 | 907 | |
88f1e9c8 MS |
908 | path = filename; |
909 | ||
910 | DEBUG_printf(("1httpSaveCredentials: Using default path \"%s\".", path)); | |
2c85b752 MS |
911 | } |
912 | ||
88f1e9c8 | 913 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
2c85b752 | 914 | { |
88f1e9c8 MS |
915 | DEBUG_printf(("1httpSaveCredentials: SecKeychainOpen returned %d.", (int)err)); |
916 | goto cleanup; | |
2c85b752 | 917 | } |
2c85b752 | 918 | |
88f1e9c8 | 919 | if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL) |
2c85b752 | 920 | { |
88f1e9c8 MS |
921 | DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains."); |
922 | goto cleanup; | |
2c85b752 | 923 | } |
88f1e9c8 | 924 | |
88f1e9c8 MS |
925 | if ((attrs = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL) |
926 | { | |
927 | DEBUG_puts("1httpSaveCredentials: Unable to create dictionary."); | |
928 | goto cleanup; | |
2c85b752 MS |
929 | } |
930 | ||
88f1e9c8 | 931 | CFDictionaryAddValue(attrs, kSecClass, kSecClassCertificate); |
88f1e9c8 MS |
932 | CFDictionaryAddValue(attrs, kSecValueRef, cert); |
933 | CFDictionaryAddValue(attrs, kSecMatchSearchList, list); | |
2c85b752 | 934 | |
88f1e9c8 | 935 | /* Note: SecItemAdd consumes "attrs"... */ |
524c65e6 | 936 | err = SecItemAdd(attrs, NULL); |
88f1e9c8 | 937 | DEBUG_printf(("1httpSaveCredentials: SecItemAdd returned %d.", (int)err)); |
2c85b752 | 938 | |
88f1e9c8 | 939 | cleanup : |
2c85b752 | 940 | |
88f1e9c8 MS |
941 | if (list) |
942 | CFRelease(list); | |
943 | if (keychain) | |
944 | CFRelease(keychain); | |
945 | if (search) | |
946 | CFRelease(search); | |
947 | if (cert) | |
948 | CFRelease(cert); | |
2c85b752 | 949 | |
88f1e9c8 | 950 | DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret)); |
2c85b752 | 951 | |
88f1e9c8 | 952 | return (ret); |
2c85b752 | 953 | |
88f1e9c8 MS |
954 | #else |
955 | (void)path; | |
956 | (void)credentials; | |
957 | (void)common_name; | |
2c85b752 | 958 | |
88f1e9c8 MS |
959 | return (-1); |
960 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 MS |
961 | } |
962 | ||
963 | ||
964 | /* | |
25731360 | 965 | * '_httpTLSInitialize()' - Initialize the TLS stack. |
2c85b752 MS |
966 | */ |
967 | ||
25731360 MS |
968 | void |
969 | _httpTLSInitialize(void) | |
2c85b752 MS |
970 | { |
971 | /* | |
972 | * Nothing to do... | |
973 | */ | |
974 | } | |
975 | ||
976 | ||
977 | /* | |
25731360 | 978 | * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes. |
2c85b752 MS |
979 | */ |
980 | ||
25731360 MS |
981 | size_t |
982 | _httpTLSPending(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
983 | { |
984 | size_t bytes; /* Bytes that are available */ | |
985 | ||
986 | ||
987 | if (!SSLGetBufferedReadSize(http->tls, &bytes)) | |
988 | return (bytes); | |
989 | ||
990 | return (0); | |
991 | } | |
992 | ||
993 | ||
994 | /* | |
25731360 | 995 | * '_httpTLSRead()' - Read from a SSL/TLS connection. |
2c85b752 MS |
996 | */ |
997 | ||
25731360 MS |
998 | int /* O - Bytes read */ |
999 | _httpTLSRead(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1000 | char *buf, /* I - Buffer to store data */ |
1001 | int len) /* I - Length of buffer */ | |
1002 | { | |
1003 | int result; /* Return value */ | |
1004 | OSStatus error; /* Error info */ | |
1005 | size_t processed; /* Number of bytes processed */ | |
1006 | ||
1007 | ||
7e86f2f6 | 1008 | error = SSLRead(http->tls, buf, (size_t)len, &processed); |
25731360 | 1009 | DEBUG_printf(("6_httpTLSRead: error=%d, processed=%d", (int)error, |
2c85b752 MS |
1010 | (int)processed)); |
1011 | switch (error) | |
1012 | { | |
1013 | case 0 : | |
1014 | result = (int)processed; | |
1015 | break; | |
1016 | ||
1017 | case errSSLWouldBlock : | |
1018 | if (processed) | |
1019 | result = (int)processed; | |
1020 | else | |
1021 | { | |
1022 | result = -1; | |
1023 | errno = EINTR; | |
1024 | } | |
1025 | break; | |
1026 | ||
1027 | case errSSLClosedGraceful : | |
1028 | default : | |
1029 | if (processed) | |
1030 | result = (int)processed; | |
1031 | else | |
1032 | { | |
1033 | result = -1; | |
1034 | errno = EPIPE; | |
1035 | } | |
1036 | break; | |
1037 | } | |
1038 | ||
1039 | return (result); | |
1040 | } | |
1041 | ||
1042 | ||
2c85b752 | 1043 | /* |
25731360 | 1044 | * '_httpTLSStart()' - Set up SSL/TLS support on a connection. |
2c85b752 MS |
1045 | */ |
1046 | ||
25731360 MS |
1047 | int /* O - 0 on success, -1 on failure */ |
1048 | _httpTLSStart(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1049 | { |
1050 | char hostname[256], /* Hostname */ | |
1051 | *hostptr; /* Pointer into hostname */ | |
1052 | _cups_globals_t *cg = _cupsGlobals(); | |
1053 | /* Pointer to library globals */ | |
1054 | OSStatus error; /* Error code */ | |
1055 | const char *message = NULL;/* Error message */ | |
1056 | cups_array_t *credentials; /* Credentials array */ | |
1057 | cups_array_t *names; /* CUPS distinguished names */ | |
1058 | CFArrayRef dn_array; /* CF distinguished names array */ | |
1059 | CFIndex count; /* Number of credentials */ | |
1060 | CFDataRef data; /* Certificate data */ | |
1061 | int i; /* Looping var */ | |
1062 | http_credential_t *credential; /* Credential data */ | |
1063 | ||
1064 | ||
25731360 | 1065 | DEBUG_printf(("7_httpTLSStart(http=%p)", http)); |
2c85b752 | 1066 | |
c913d726 | 1067 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 1068 | if (http->mode == _HTTP_MODE_SERVER && !tls_keychain) |
c913d726 MS |
1069 | #else |
1070 | if (http->mode == _HTTP_MODE_SERVER) | |
1071 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 | 1072 | { |
25731360 | 1073 | DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called."); |
41e0907c MS |
1074 | http->error = errno = EINVAL; |
1075 | http->status = HTTP_STATUS_ERROR; | |
1076 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Server credentials not set."), 1); | |
2c85b752 | 1077 | |
41e0907c | 1078 | return (-1); |
2c85b752 MS |
1079 | } |
1080 | ||
72d05bc9 | 1081 | if ((http->tls = SSLCreateContext(kCFAllocatorDefault, http->mode == _HTTP_MODE_CLIENT ? kSSLClientSide : kSSLServerSide, kSSLStreamType)) == NULL) |
2c85b752 | 1082 | { |
25731360 | 1083 | DEBUG_puts("4_httpTLSStart: SSLCreateContext failed."); |
2c85b752 MS |
1084 | http->error = errno = ENOMEM; |
1085 | http->status = HTTP_STATUS_ERROR; | |
1086 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
1087 | ||
1088 | return (-1); | |
1089 | } | |
1090 | ||
1091 | error = SSLSetConnection(http->tls, http); | |
25731360 | 1092 | DEBUG_printf(("4_httpTLSStart: SSLSetConnection, error=%d", (int)error)); |
2c85b752 MS |
1093 | |
1094 | if (!error) | |
1095 | { | |
1096 | error = SSLSetIOFuncs(http->tls, http_cdsa_read, http_cdsa_write); | |
25731360 | 1097 | DEBUG_printf(("4_httpTLSStart: SSLSetIOFuncs, error=%d", (int)error)); |
2c85b752 MS |
1098 | } |
1099 | ||
1100 | if (!error) | |
1101 | { | |
1102 | error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth, | |
1103 | true); | |
25731360 | 1104 | DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", |
2c85b752 MS |
1105 | (int)error)); |
1106 | } | |
1107 | ||
41e0907c | 1108 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1109 | { |
41e0907c MS |
1110 | /* |
1111 | * Client: set client-side credentials, if any... | |
1112 | */ | |
1113 | ||
2c85b752 MS |
1114 | if (cg->client_cert_cb) |
1115 | { | |
1116 | error = SSLSetSessionOption(http->tls, | |
1117 | kSSLSessionOptionBreakOnCertRequested, true); | |
25731360 | 1118 | DEBUG_printf(("4_httpTLSStart: kSSLSessionOptionBreakOnCertRequested, " |
2c85b752 MS |
1119 | "error=%d", (int)error)); |
1120 | } | |
1121 | else | |
1122 | { | |
88f1e9c8 MS |
1123 | error = http_cdsa_set_credentials(http); |
1124 | DEBUG_printf(("4_httpTLSStart: http_cdsa_set_credentials, error=%d", | |
2c85b752 MS |
1125 | (int)error)); |
1126 | } | |
1127 | } | |
41e0907c MS |
1128 | else if (!error) |
1129 | { | |
1130 | /* | |
1131 | * Server: find/create a certificate for TLS... | |
1132 | */ | |
1133 | ||
1134 | if (http->fields[HTTP_FIELD_HOST][0]) | |
1135 | { | |
1136 | /* | |
1137 | * Use hostname for TLS upgrade... | |
1138 | */ | |
1139 | ||
1140 | strlcpy(hostname, http->fields[HTTP_FIELD_HOST], sizeof(hostname)); | |
1141 | } | |
1142 | else | |
1143 | { | |
1144 | /* | |
1145 | * Resolve hostname from connection address... | |
1146 | */ | |
1147 | ||
1148 | http_addr_t addr; /* Connection address */ | |
1149 | socklen_t addrlen; /* Length of address */ | |
1150 | ||
1151 | addrlen = sizeof(addr); | |
1152 | if (getsockname(http->fd, (struct sockaddr *)&addr, &addrlen)) | |
1153 | { | |
25731360 | 1154 | DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno))); |
41e0907c MS |
1155 | hostname[0] = '\0'; |
1156 | } | |
1157 | else if (httpAddrLocalhost(&addr)) | |
1158 | hostname[0] = '\0'; | |
1159 | else | |
a27a134a MS |
1160 | { |
1161 | httpAddrLookup(&addr, hostname, sizeof(hostname)); | |
25731360 | 1162 | DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname)); |
a27a134a | 1163 | } |
41e0907c MS |
1164 | } |
1165 | ||
eb66bc71 | 1166 | #ifdef HAVE_SECKEYCHAINOPEN |
a27a134a MS |
1167 | if (isdigit(hostname[0] & 255) || hostname[0] == '[') |
1168 | hostname[0] = '\0'; /* Don't allow numeric addresses */ | |
1169 | ||
41e0907c MS |
1170 | if (hostname[0]) |
1171 | http->tls_credentials = http_cdsa_copy_server(hostname); | |
1172 | else if (tls_common_name) | |
1173 | http->tls_credentials = http_cdsa_copy_server(tls_common_name); | |
1174 | ||
1175 | if (!http->tls_credentials && tls_auto_create && (hostname[0] || tls_common_name)) | |
1176 | { | |
25731360 | 1177 | DEBUG_printf(("4_httpTLSStart: Auto-create credentials for \"%s\".", hostname[0] ? hostname : tls_common_name)); |
41e0907c MS |
1178 | |
1179 | if (!cupsMakeServerCredentials(tls_keypath, hostname[0] ? hostname : tls_common_name, 0, NULL, time(NULL) + 365 * 86400)) | |
1180 | { | |
25731360 | 1181 | DEBUG_puts("4_httpTLSStart: cupsMakeServerCredentials failed."); |
41e0907c MS |
1182 | http->error = errno = EINVAL; |
1183 | http->status = HTTP_STATUS_ERROR; | |
1184 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create server credentials."), 1); | |
1185 | ||
1186 | return (-1); | |
1187 | } | |
1188 | ||
1189 | http->tls_credentials = http_cdsa_copy_server(hostname[0] ? hostname : tls_common_name); | |
1190 | } | |
eb66bc71 | 1191 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c MS |
1192 | |
1193 | if (!http->tls_credentials) | |
1194 | { | |
25731360 | 1195 | DEBUG_puts("4_httpTLSStart: Unable to find server credentials."); |
41e0907c MS |
1196 | http->error = errno = EINVAL; |
1197 | http->status = HTTP_STATUS_ERROR; | |
1198 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to find server credentials."), 1); | |
1199 | ||
1200 | return (-1); | |
1201 | } | |
1202 | ||
1203 | error = SSLSetCertificate(http->tls, http->tls_credentials); | |
1204 | ||
25731360 | 1205 | DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error)); |
41e0907c MS |
1206 | } |
1207 | ||
25731360 | 1208 | DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", http->tls_credentials)); |
2c85b752 MS |
1209 | |
1210 | /* | |
1211 | * Let the server know which hostname/domain we are trying to connect to | |
1212 | * in case it wants to serve up a certificate with a matching common name. | |
1213 | */ | |
1214 | ||
41e0907c | 1215 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1216 | { |
41e0907c MS |
1217 | /* |
1218 | * Client: get the hostname to use for TLS... | |
1219 | */ | |
1220 | ||
1221 | if (httpAddrLocalhost(http->hostaddr)) | |
1222 | { | |
1223 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
1224 | } | |
1225 | else | |
1226 | { | |
1227 | /* | |
1228 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
1229 | */ | |
1230 | ||
1231 | strlcpy(hostname, http->hostname, sizeof(hostname)); | |
1232 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
1233 | *hostptr == '.') | |
1234 | *hostptr = '\0'; | |
1235 | } | |
1236 | ||
2c85b752 MS |
1237 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); |
1238 | ||
25731360 | 1239 | DEBUG_printf(("4_httpTLSStart: SSLSetPeerDomainName, error=%d", (int)error)); |
2c85b752 MS |
1240 | } |
1241 | ||
1242 | if (!error) | |
1243 | { | |
1244 | int done = 0; /* Are we done yet? */ | |
1245 | ||
1246 | while (!error && !done) | |
1247 | { | |
1248 | error = SSLHandshake(http->tls); | |
1249 | ||
25731360 | 1250 | DEBUG_printf(("4_httpTLSStart: SSLHandshake returned %d.", (int)error)); |
2c85b752 MS |
1251 | |
1252 | switch (error) | |
1253 | { | |
1254 | case noErr : | |
1255 | done = 1; | |
1256 | break; | |
1257 | ||
1258 | case errSSLWouldBlock : | |
1259 | error = noErr; /* Force a retry */ | |
1260 | usleep(1000); /* in 1 millisecond */ | |
1261 | break; | |
1262 | ||
1263 | case errSSLServerAuthCompleted : | |
1264 | error = 0; | |
1265 | if (cg->server_cert_cb) | |
1266 | { | |
1267 | error = httpCopyCredentials(http, &credentials); | |
1268 | if (!error) | |
1269 | { | |
1270 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
1271 | cg->server_cert_data); | |
1272 | httpFreeCredentials(credentials); | |
1273 | } | |
1274 | ||
25731360 | 1275 | DEBUG_printf(("4_httpTLSStart: Server certificate callback " |
2c85b752 MS |
1276 | "returned %d.", (int)error)); |
1277 | } | |
1278 | break; | |
1279 | ||
1280 | case errSSLClientCertRequested : | |
1281 | error = 0; | |
1282 | ||
1283 | if (cg->client_cert_cb) | |
1284 | { | |
1285 | names = NULL; | |
1286 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && | |
1287 | dn_array) | |
1288 | { | |
1289 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
1290 | { | |
1291 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
1292 | { | |
1293 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
1294 | ||
1295 | if ((credential = malloc(sizeof(*credential))) != NULL) | |
1296 | { | |
7e86f2f6 | 1297 | credential->datalen = (size_t)CFDataGetLength(data); |
2c85b752 MS |
1298 | if ((credential->data = malloc(credential->datalen))) |
1299 | { | |
1300 | memcpy((void *)credential->data, CFDataGetBytePtr(data), | |
1301 | credential->datalen); | |
1302 | cupsArrayAdd(names, credential); | |
1303 | } | |
1304 | else | |
1305 | free(credential); | |
1306 | } | |
1307 | } | |
1308 | } | |
1309 | ||
1310 | CFRelease(dn_array); | |
1311 | } | |
1312 | ||
1313 | if (!error) | |
1314 | { | |
1315 | error = (cg->client_cert_cb)(http, http->tls, names, | |
1316 | cg->client_cert_data); | |
1317 | ||
25731360 | 1318 | DEBUG_printf(("4_httpTLSStart: Client certificate callback " |
2c85b752 MS |
1319 | "returned %d.", (int)error)); |
1320 | } | |
1321 | ||
1322 | httpFreeCredentials(names); | |
1323 | } | |
1324 | break; | |
1325 | ||
1326 | case errSSLUnknownRootCert : | |
1327 | message = _("Unable to establish a secure connection to host " | |
1328 | "(untrusted certificate)."); | |
1329 | break; | |
1330 | ||
1331 | case errSSLNoRootCert : | |
1332 | message = _("Unable to establish a secure connection to host " | |
1333 | "(self-signed certificate)."); | |
1334 | break; | |
1335 | ||
1336 | case errSSLCertExpired : | |
1337 | message = _("Unable to establish a secure connection to host " | |
1338 | "(expired certificate)."); | |
1339 | break; | |
1340 | ||
1341 | case errSSLCertNotYetValid : | |
1342 | message = _("Unable to establish a secure connection to host " | |
1343 | "(certificate not yet valid)."); | |
1344 | break; | |
1345 | ||
1346 | case errSSLHostNameMismatch : | |
1347 | message = _("Unable to establish a secure connection to host " | |
1348 | "(host name mismatch)."); | |
1349 | break; | |
1350 | ||
1351 | case errSSLXCertChainInvalid : | |
1352 | message = _("Unable to establish a secure connection to host " | |
1353 | "(certificate chain invalid)."); | |
1354 | break; | |
1355 | ||
1356 | case errSSLConnectionRefused : | |
1357 | message = _("Unable to establish a secure connection to host " | |
1358 | "(peer dropped connection before responding)."); | |
1359 | break; | |
1360 | ||
1361 | default : | |
1362 | break; | |
1363 | } | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | if (error) | |
1368 | { | |
1369 | http->error = error; | |
1370 | http->status = HTTP_STATUS_ERROR; | |
1371 | errno = ECONNREFUSED; | |
1372 | ||
1373 | CFRelease(http->tls); | |
1374 | http->tls = NULL; | |
1375 | ||
1376 | /* | |
1377 | * If an error string wasn't set by the callbacks use a generic one... | |
1378 | */ | |
1379 | ||
1380 | if (!message) | |
1381 | #ifdef HAVE_CSSMERRORSTRING | |
1382 | message = cssmErrorString(error); | |
1383 | #else | |
1384 | message = _("Unable to establish a secure connection to host."); | |
1385 | #endif /* HAVE_CSSMERRORSTRING */ | |
1386 | ||
1387 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); | |
1388 | ||
1389 | return (-1); | |
1390 | } | |
1391 | ||
1392 | return (0); | |
1393 | } | |
1394 | ||
1395 | ||
1396 | /* | |
25731360 | 1397 | * '_httpTLSStop()' - Shut down SSL/TLS on a connection. |
2c85b752 MS |
1398 | */ |
1399 | ||
25731360 MS |
1400 | void |
1401 | _httpTLSStop(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1402 | { |
1403 | while (SSLClose(http->tls) == errSSLWouldBlock) | |
1404 | usleep(1000); | |
1405 | ||
1406 | CFRelease(http->tls); | |
1407 | ||
1408 | if (http->tls_credentials) | |
1409 | CFRelease(http->tls_credentials); | |
1410 | ||
1411 | http->tls = NULL; | |
1412 | http->tls_credentials = NULL; | |
1413 | } | |
1414 | ||
1415 | ||
1416 | /* | |
25731360 | 1417 | * '_httpTLSWrite()' - Write to a SSL/TLS connection. |
2c85b752 MS |
1418 | */ |
1419 | ||
25731360 MS |
1420 | int /* O - Bytes written */ |
1421 | _httpTLSWrite(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1422 | const char *buf, /* I - Buffer holding data */ |
1423 | int len) /* I - Length of buffer */ | |
1424 | { | |
1425 | ssize_t result; /* Return value */ | |
1426 | OSStatus error; /* Error info */ | |
1427 | size_t processed; /* Number of bytes processed */ | |
1428 | ||
1429 | ||
25731360 | 1430 | DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", http, buf, len)); |
2c85b752 | 1431 | |
7e86f2f6 | 1432 | error = SSLWrite(http->tls, buf, (size_t)len, &processed); |
2c85b752 MS |
1433 | |
1434 | switch (error) | |
1435 | { | |
1436 | case 0 : | |
1437 | result = (int)processed; | |
1438 | break; | |
1439 | ||
1440 | case errSSLWouldBlock : | |
1441 | if (processed) | |
1442 | { | |
1443 | result = (int)processed; | |
1444 | } | |
1445 | else | |
1446 | { | |
1447 | result = -1; | |
1448 | errno = EINTR; | |
1449 | } | |
1450 | break; | |
1451 | ||
1452 | case errSSLClosedGraceful : | |
1453 | default : | |
1454 | if (processed) | |
1455 | { | |
1456 | result = (int)processed; | |
1457 | } | |
1458 | else | |
1459 | { | |
1460 | result = -1; | |
1461 | errno = EPIPE; | |
1462 | } | |
1463 | break; | |
1464 | } | |
1465 | ||
25731360 | 1466 | DEBUG_printf(("3_httpTLSWrite: Returning %d.", (int)result)); |
2c85b752 MS |
1467 | |
1468 | return ((int)result); | |
1469 | } | |
1470 | ||
1471 | ||
88f1e9c8 | 1472 | #ifdef HAVE_SECKEYCHAINOPEN |
2c85b752 | 1473 | /* |
88f1e9c8 | 1474 | * 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain. |
2c85b752 MS |
1475 | */ |
1476 | ||
88f1e9c8 MS |
1477 | static CFArrayRef /* O - Array of certificates or NULL */ |
1478 | http_cdsa_copy_server( | |
1479 | const char *common_name) /* I - Server's hostname */ | |
2c85b752 | 1480 | { |
88f1e9c8 MS |
1481 | OSStatus err; /* Error info */ |
1482 | SecIdentitySearchRef search = NULL; /* Search reference */ | |
1483 | SecIdentityRef identity = NULL;/* Identity */ | |
1484 | CFArrayRef certificates = NULL; | |
1485 | /* Certificate array */ | |
1486 | SecPolicyRef policy = NULL; /* Policy ref */ | |
1487 | CFStringRef cfcommon_name = NULL; | |
1488 | /* Server name */ | |
1489 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
1490 | CFArrayRef list = NULL; /* Keychain list */ | |
2c85b752 | 1491 | |
2c85b752 | 1492 | |
88f1e9c8 | 1493 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
2c85b752 | 1494 | |
88f1e9c8 MS |
1495 | policy = SecPolicyCreateSSL(1, cfcommon_name); |
1496 | ||
1497 | if (cfcommon_name) | |
1498 | CFRelease(cfcommon_name); | |
1499 | ||
1500 | if (!policy) | |
1501 | goto cleanup; | |
1502 | ||
1503 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
1504 | goto cleanup; | |
1505 | ||
f93b32b6 MS |
1506 | _cupsMutexLock(&tls_mutex); |
1507 | ||
88f1e9c8 MS |
1508 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks); |
1509 | ||
1510 | CFDictionaryAddValue(query, kSecClass, kSecClassIdentity); | |
1511 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); | |
1512 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
1513 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
1514 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
1515 | ||
1516 | CFRelease(list); | |
1517 | ||
1518 | err = SecItemCopyMatching(query, (CFTypeRef *)&identity); | |
1519 | ||
f93b32b6 MS |
1520 | _cupsMutexUnlock(&tls_mutex); |
1521 | ||
88f1e9c8 MS |
1522 | if (err) |
1523 | goto cleanup; | |
1524 | ||
1525 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
1526 | goto cleanup; | |
1527 | ||
1528 | if ((certificates = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks)) == NULL) | |
1529 | goto cleanup; | |
1530 | ||
1531 | cleanup : | |
1532 | ||
1533 | if (search) | |
1534 | CFRelease(search); | |
1535 | if (identity) | |
1536 | CFRelease(identity); | |
1537 | ||
1538 | if (policy) | |
1539 | CFRelease(policy); | |
1540 | if (query) | |
1541 | CFRelease(query); | |
1542 | ||
1543 | return (certificates); | |
2c85b752 | 1544 | } |
88f1e9c8 | 1545 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2c85b752 MS |
1546 | |
1547 | ||
1548 | /* | |
88f1e9c8 | 1549 | * 'http_cdsa_read()' - Read function for the CDSA library. |
2c85b752 MS |
1550 | */ |
1551 | ||
88f1e9c8 MS |
1552 | static OSStatus /* O - -1 on error, 0 on success */ |
1553 | http_cdsa_read( | |
1554 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1555 | void *data, /* I - Data buffer */ | |
1556 | size_t *dataLength) /* IO - Number of bytes */ | |
2c85b752 | 1557 | { |
88f1e9c8 MS |
1558 | OSStatus result; /* Return value */ |
1559 | ssize_t bytes; /* Number of bytes read */ | |
1560 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1561 | |
2c85b752 | 1562 | |
88f1e9c8 | 1563 | http = (http_t *)connection; |
2c85b752 | 1564 | |
88f1e9c8 | 1565 | if (!http->blocking) |
2c85b752 MS |
1566 | { |
1567 | /* | |
88f1e9c8 | 1568 | * Make sure we have data before we read... |
2c85b752 MS |
1569 | */ |
1570 | ||
88f1e9c8 MS |
1571 | while (!_httpWait(http, http->wait_value, 0)) |
1572 | { | |
1573 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1574 | continue; | |
1575 | ||
1576 | http->error = ETIMEDOUT; | |
1577 | return (-1); | |
1578 | } | |
2c85b752 MS |
1579 | } |
1580 | ||
88f1e9c8 | 1581 | do |
2c85b752 | 1582 | { |
88f1e9c8 | 1583 | bytes = recv(http->fd, data, *dataLength, 0); |
2c85b752 | 1584 | } |
88f1e9c8 | 1585 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
2c85b752 | 1586 | |
88f1e9c8 MS |
1587 | if ((size_t)bytes == *dataLength) |
1588 | { | |
1589 | result = 0; | |
1590 | } | |
1591 | else if (bytes > 0) | |
1592 | { | |
1593 | *dataLength = (size_t)bytes; | |
1594 | result = errSSLWouldBlock; | |
1595 | } | |
1596 | else | |
1597 | { | |
1598 | *dataLength = 0; | |
2c85b752 | 1599 | |
88f1e9c8 MS |
1600 | if (bytes == 0) |
1601 | result = errSSLClosedGraceful; | |
1602 | else if (errno == EAGAIN) | |
1603 | result = errSSLWouldBlock; | |
1604 | else | |
1605 | result = errSSLClosedAbort; | |
1606 | } | |
2c85b752 | 1607 | |
88f1e9c8 MS |
1608 | return (result); |
1609 | } | |
2c85b752 | 1610 | |
2c85b752 | 1611 | |
88f1e9c8 MS |
1612 | /* |
1613 | * 'http_cdsa_set_credentials()' - Set the TLS credentials. | |
1614 | */ | |
2c85b752 | 1615 | |
88f1e9c8 MS |
1616 | static int /* O - Status of connection */ |
1617 | http_cdsa_set_credentials(http_t *http) /* I - HTTP connection */ | |
1618 | { | |
1619 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
1620 | OSStatus error = 0; /* Error code */ | |
1621 | http_tls_credentials_t credentials = NULL; | |
1622 | /* TLS credentials */ | |
2c85b752 | 1623 | |
2c85b752 | 1624 | |
88f1e9c8 | 1625 | DEBUG_printf(("7http_tls_set_credentials(%p)", http)); |
2c85b752 | 1626 | |
88f1e9c8 MS |
1627 | /* |
1628 | * Prefer connection specific credentials... | |
1629 | */ | |
2c85b752 | 1630 | |
88f1e9c8 MS |
1631 | if ((credentials = http->tls_credentials) == NULL) |
1632 | credentials = cg->tls_credentials; | |
2c85b752 | 1633 | |
88f1e9c8 MS |
1634 | if (credentials) |
1635 | { | |
1636 | error = SSLSetCertificate(http->tls, credentials); | |
1637 | DEBUG_printf(("4http_tls_set_credentials: SSLSetCertificate, error=%d", | |
1638 | (int)error)); | |
2c85b752 | 1639 | } |
88f1e9c8 MS |
1640 | else |
1641 | DEBUG_puts("4http_tls_set_credentials: No credentials to set."); | |
1642 | ||
1643 | return (error); | |
1644 | } | |
1645 | ||
1646 | ||
1647 | /* | |
1648 | * 'http_cdsa_write()' - Write function for the CDSA library. | |
1649 | */ | |
1650 | ||
1651 | static OSStatus /* O - -1 on error, 0 on success */ | |
1652 | http_cdsa_write( | |
1653 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1654 | const void *data, /* I - Data buffer */ | |
1655 | size_t *dataLength) /* IO - Number of bytes */ | |
1656 | { | |
1657 | OSStatus result; /* Return value */ | |
1658 | ssize_t bytes; /* Number of bytes read */ | |
1659 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1660 | |
2c85b752 | 1661 | |
88f1e9c8 MS |
1662 | http = (http_t *)connection; |
1663 | ||
1664 | do | |
2c85b752 | 1665 | { |
88f1e9c8 MS |
1666 | bytes = write(http->fd, data, *dataLength); |
1667 | } | |
1668 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); | |
1669 | ||
1670 | if ((size_t)bytes == *dataLength) | |
1671 | { | |
1672 | result = 0; | |
1673 | } | |
1674 | else if (bytes >= 0) | |
1675 | { | |
1676 | *dataLength = (size_t)bytes; | |
1677 | result = errSSLWouldBlock; | |
2c85b752 MS |
1678 | } |
1679 | else | |
88f1e9c8 MS |
1680 | { |
1681 | *dataLength = 0; | |
2c85b752 | 1682 | |
88f1e9c8 MS |
1683 | if (errno == EAGAIN) |
1684 | result = errSSLWouldBlock; | |
1685 | else | |
1686 | result = errSSLClosedAbort; | |
1687 | } | |
1688 | ||
1689 | return (result); | |
2c85b752 | 1690 | } |
2c85b752 MS |
1691 | |
1692 | ||
1693 | /* | |
1694 | * End of "$Id$". | |
1695 | */ |