]>
Commit | Line | Data |
---|---|---|
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 | ||
c0459938 MS |
31 | static int tls_auto_create = 0; |
32 | /* Auto-create self-signed certs? */ | |
33 | static char *tls_common_name = NULL; | |
34 | /* Default common name */ | |
fc4bbb58 | 35 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c MS |
36 | static SecKeychainRef tls_keychain = NULL; |
37 | /* Server cert keychain */ | |
2274d26b MS |
38 | #else |
39 | static SecIdentityRef tls_selfsigned = NULL; | |
40 | /* Temporary self-signed cert */ | |
fc4bbb58 | 41 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c MS |
42 | static char *tls_keypath = NULL; |
43 | /* Server cert keychain path */ | |
44 | static _cups_mutex_t tls_mutex = _CUPS_MUTEX_INITIALIZER; | |
45 | /* Mutex for keychain/certs */ | |
4492316e | 46 | static int tls_options = -1;/* Options for TLS connections */ |
c0459938 MS |
47 | |
48 | ||
dafebafd MS |
49 | /* |
50 | * Local functions... | |
51 | */ | |
2c85b752 | 52 | |
41e0907c | 53 | static CFArrayRef http_cdsa_copy_server(const char *common_name); |
2ece34a9 | 54 | static SecCertificateRef http_cdsa_create_credential(http_credential_t *credential); |
fc4bbb58 | 55 | #ifdef HAVE_SECKEYCHAINOPEN |
005f7f1f | 56 | static const char *http_cdsa_default_path(char *buffer, size_t bufsize); |
fc4bbb58 | 57 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c | 58 | static OSStatus http_cdsa_read(SSLConnectionRef connection, void *data, size_t *dataLength); |
88f1e9c8 | 59 | static int http_cdsa_set_credentials(http_t *http); |
41e0907c | 60 | static OSStatus http_cdsa_write(SSLConnectionRef connection, const void *data, size_t *dataLength); |
2c85b752 MS |
61 | |
62 | ||
3af9ac9e MS |
63 | /* |
64 | * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair. | |
65 | * | |
e1f19878 | 66 | * @since CUPS 2.0/OS 10.10@ |
3af9ac9e MS |
67 | */ |
68 | ||
69 | int /* O - 1 on success, 0 on failure */ | |
70 | cupsMakeServerCredentials( | |
f93b32b6 | 71 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
72 | const char *common_name, /* I - Common name */ |
73 | int num_alt_names, /* I - Number of subject alternate names */ | |
74 | const char **alt_names, /* I - Subject Alternate Names */ | |
75 | time_t expiration_date) /* I - Expiration date */ | |
76 | { | |
fc4bbb58 | 77 | #if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE) |
41e0907c MS |
78 | int status = 0; /* Return status */ |
79 | OSStatus err; /* Error code (if any) */ | |
80 | CFStringRef cfcommon_name = NULL; | |
81 | /* CF string for server name */ | |
82 | SecIdentityRef ident = NULL; /* Identity */ | |
83 | SecKeyRef publicKey = NULL, | |
84 | /* Public key */ | |
85 | privateKey = NULL; | |
86 | /* Private key */ | |
558883c6 | 87 | SecCertificateRef cert = NULL; /* Self-signed certificate */ |
41e0907c MS |
88 | CFMutableDictionaryRef keyParams = NULL; |
89 | /* Key generation parameters */ | |
90 | ||
91 | ||
172bdf5d MS |
92 | 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)); |
93 | ||
fc4bbb58 | 94 | (void)path; |
3af9ac9e MS |
95 | (void)num_alt_names; |
96 | (void)alt_names; | |
97 | (void)expiration_date; | |
98 | ||
fc4bbb58 MS |
99 | if (path) |
100 | { | |
101 | DEBUG_puts("1cupsMakeServerCredentials: No keychain support compiled in, returning 0."); | |
102 | return (0); | |
103 | } | |
f93b32b6 | 104 | |
2274d26b MS |
105 | if (tls_selfsigned) |
106 | { | |
107 | DEBUG_puts("1cupsMakeServerCredentials: Using existing self-signed cert."); | |
108 | return (1); | |
109 | } | |
110 | ||
f93b32b6 | 111 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
41e0907c | 112 | if (!cfcommon_name) |
2274d26b MS |
113 | { |
114 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create CF string of common name."); | |
41e0907c | 115 | goto cleanup; |
2274d26b | 116 | } |
41e0907c MS |
117 | |
118 | /* | |
119 | * Create a public/private key pair... | |
120 | */ | |
121 | ||
f93b32b6 | 122 | keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); |
41e0907c | 123 | if (!keyParams) |
2274d26b MS |
124 | { |
125 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create key parameters dictionary."); | |
41e0907c | 126 | goto cleanup; |
2274d26b | 127 | } |
41e0907c | 128 | |
1a7059a0 | 129 | CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeRSA); |
41e0907c | 130 | CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048")); |
2274d26b | 131 | CFDictionaryAddValue(keyParams, kSecAttrLabel, cfcommon_name); |
41e0907c MS |
132 | |
133 | err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey); | |
134 | if (err != noErr) | |
2274d26b MS |
135 | { |
136 | DEBUG_printf(("1cupsMakeServerCredentials: Unable to generate key pair: %d.", (int)err)); | |
41e0907c | 137 | goto cleanup; |
2274d26b | 138 | } |
41e0907c MS |
139 | |
140 | /* | |
141 | * Create a self-signed certificate using the public/private key pair... | |
142 | */ | |
143 | ||
144 | CFIndex usageInt = kSecKeyUsageAll; | |
558883c6 MS |
145 | CFNumberRef usage = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &usageInt); |
146 | CFIndex lenInt = 0; | |
147 | CFNumberRef len = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &lenInt); | |
fc4bbb58 MS |
148 | CFTypeRef certKeys[] = { kSecCSRBasicContraintsPathLen, kSecSubjectAltName, kSecCertificateKeyUsage }; |
149 | CFTypeRef certValues[] = { len, cfcommon_name, usage }; | |
150 | CFDictionaryRef certParams = CFDictionaryCreate(kCFAllocatorDefault, certKeys, certValues, sizeof(certKeys) / sizeof(certKeys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); | |
41e0907c | 151 | CFRelease(usage); |
558883c6 | 152 | CFRelease(len); |
41e0907c MS |
153 | |
154 | const void *ca_o[] = { kSecOidOrganization, CFSTR("") }; | |
155 | const void *ca_cn[] = { kSecOidCommonName, cfcommon_name }; | |
156 | CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL); | |
157 | CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL); | |
158 | const void *ca_dn_array[2]; | |
159 | ||
160 | ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL); | |
161 | ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL); | |
162 | ||
163 | CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL); | |
fc4bbb58 | 164 | |
558883c6 | 165 | cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey); |
fc4bbb58 | 166 | |
41e0907c MS |
167 | CFRelease(subject); |
168 | CFRelease(certParams); | |
169 | ||
170 | if (!cert) | |
2274d26b MS |
171 | { |
172 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create self-signed certificate."); | |
41e0907c | 173 | goto cleanup; |
2274d26b | 174 | } |
41e0907c MS |
175 | |
176 | ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey); | |
177 | ||
178 | if (ident) | |
fc4bbb58 | 179 | { |
2274d26b MS |
180 | _cupsMutexLock(&tls_mutex); |
181 | ||
182 | if (tls_selfsigned) | |
183 | CFRelease(ident); | |
184 | else | |
185 | tls_selfsigned = ident; | |
186 | ||
187 | _cupsMutexLock(&tls_mutex); | |
188 | ||
189 | # if 0 /* Someday perhaps SecItemCopyMatching will work for identities, at which point */ | |
fc4bbb58 MS |
190 | CFTypeRef itemKeys[] = { kSecClass, kSecAttrLabel, kSecValueRef }; |
191 | CFTypeRef itemValues[] = { kSecClassIdentity, cfcommon_name, ident }; | |
192 | CFDictionaryRef itemAttrs = CFDictionaryCreate(kCFAllocatorDefault, itemKeys, itemValues, sizeof(itemKeys) / sizeof(itemKeys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); | |
193 | ||
194 | err = SecItemAdd(itemAttrs, NULL); | |
e34d1ec4 | 195 | /* SecItemAdd consumes itemAttrs... */ |
fc4bbb58 | 196 | |
2274d26b MS |
197 | CFRelease(ident); |
198 | ||
fc4bbb58 | 199 | if (err != noErr) |
2274d26b MS |
200 | { |
201 | DEBUG_printf(("1cupsMakeServerCredentials: Unable to add identity to keychain: %d.", (int)err)); | |
fc4bbb58 | 202 | goto cleanup; |
2274d26b MS |
203 | } |
204 | # endif /* 0 */ | |
fc4bbb58 | 205 | |
41e0907c | 206 | status = 1; |
fc4bbb58 | 207 | } |
2274d26b MS |
208 | else |
209 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create identity from cert and keys."); | |
41e0907c MS |
210 | |
211 | /* | |
212 | * Cleanup and return... | |
213 | */ | |
214 | ||
215 | cleanup: | |
216 | ||
217 | if (cfcommon_name) | |
218 | CFRelease(cfcommon_name); | |
219 | ||
220 | if (keyParams) | |
221 | CFRelease(keyParams); | |
222 | ||
41e0907c MS |
223 | if (cert) |
224 | CFRelease(cert); | |
225 | ||
226 | if (publicKey) | |
227 | CFRelease(publicKey); | |
228 | ||
229 | if (privateKey) | |
2274d26b MS |
230 | CFRelease(privateKey); |
231 | ||
232 | DEBUG_printf(("1cupsMakeServerCredentials: Returning %d.", status)); | |
41e0907c MS |
233 | |
234 | return (status); | |
235 | ||
fc4bbb58 | 236 | #else /* !HAVE_SECGENERATESELFSIGNEDCERTIFICATE */ |
41e0907c | 237 | int pid, /* Process ID of command */ |
7d58a105 MS |
238 | status, /* Status of command */ |
239 | i; /* Looping var */ | |
41e0907c | 240 | char command[1024], /* Command */ |
724f2615 | 241 | *argv[5], /* Command-line arguments */ |
7d58a105 MS |
242 | *envp[1000], /* Environment variables */ |
243 | days[32], /* CERTTOOL_EXPIRATION_DAYS env var */ | |
41e0907c | 244 | keychain[1024], /* Keychain argument */ |
f93b32b6 MS |
245 | infofile[1024], /* Type-in information for cert */ |
246 | filename[1024]; /* Default keychain path */ | |
41e0907c MS |
247 | cups_file_t *fp; /* Seed/info file */ |
248 | ||
249 | ||
807315e6 | 250 | 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 | 251 | |
41e0907c MS |
252 | (void)num_alt_names; |
253 | (void)alt_names; | |
41e0907c | 254 | |
f93b32b6 | 255 | if (!path) |
005f7f1f | 256 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 257 | |
41e0907c MS |
258 | /* |
259 | * Run the "certtool" command to generate a self-signed certificate... | |
260 | */ | |
261 | ||
262 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
263 | return (-1); | |
264 | ||
265 | /* | |
266 | * Create a file with the certificate information fields... | |
267 | * | |
268 | * Note: This assumes that the default questions are asked by the certtool | |
269 | * command... | |
270 | */ | |
271 | ||
272 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
273 | return (-1); | |
274 | ||
275 | cupsFilePrintf(fp, | |
276 | "CUPS Self-Signed Certificate\n" | |
277 | /* Enter key and certificate label */ | |
724f2615 | 278 | "r\n" /* Generate RSA key pair */ |
1ae693e3 | 279 | "2048\n" /* 2048 bit encryption key */ |
41e0907c MS |
280 | "y\n" /* OK (y = yes) */ |
281 | "b\n" /* Usage (b=signing/encryption) */ | |
1ae693e3 | 282 | "2\n" /* Sign with SHA256 */ |
41e0907c MS |
283 | "y\n" /* OK (y = yes) */ |
284 | "%s\n" /* Common name */ | |
285 | "\n" /* Country (default) */ | |
286 | "\n" /* Organization (default) */ | |
287 | "\n" /* Organizational unit (default) */ | |
288 | "\n" /* State/Province (default) */ | |
289 | "\n" /* Email address */ | |
290 | "y\n", /* OK (y = yes) */ | |
291 | common_name); | |
292 | cupsFileClose(fp); | |
293 | ||
294 | snprintf(keychain, sizeof(keychain), "k=%s", path); | |
295 | ||
296 | argv[0] = "certtool"; | |
297 | argv[1] = "c"; | |
298 | argv[2] = keychain; | |
299 | argv[3] = NULL; | |
300 | ||
7d58a105 MS |
301 | snprintf(days, sizeof(days), "CERTTOOL_EXPIRATION_DAYS=%d", (int)((expiration_date - time(NULL) + 86399) / 86400)); |
302 | envp[0] = days; | |
303 | for (i = 0; i < (int)(sizeof(envp) / sizeof(envp[0]) - 2) && environ[i]; i ++) | |
304 | envp[i + 1] = environ[i]; | |
305 | envp[i] = NULL; | |
306 | ||
41e0907c MS |
307 | posix_spawn_file_actions_t actions; /* File actions */ |
308 | ||
309 | posix_spawn_file_actions_init(&actions); | |
310 | posix_spawn_file_actions_addclose(&actions, 0); | |
311 | posix_spawn_file_actions_addopen(&actions, 0, infofile, O_RDONLY, 0); | |
f93b32b6 MS |
312 | posix_spawn_file_actions_addclose(&actions, 1); |
313 | posix_spawn_file_actions_addopen(&actions, 1, "/dev/null", O_WRONLY, 0); | |
314 | posix_spawn_file_actions_addclose(&actions, 2); | |
315 | posix_spawn_file_actions_addopen(&actions, 2, "/dev/null", O_WRONLY, 0); | |
41e0907c | 316 | |
7d58a105 | 317 | if (posix_spawn(&pid, command, &actions, NULL, argv, envp)) |
41e0907c MS |
318 | { |
319 | unlink(infofile); | |
320 | return (-1); | |
321 | } | |
322 | ||
323 | posix_spawn_file_actions_destroy(&actions); | |
324 | ||
325 | unlink(infofile); | |
326 | ||
327 | while (waitpid(pid, &status, 0) < 0) | |
328 | if (errno != EINTR) | |
329 | { | |
330 | status = -1; | |
331 | break; | |
332 | } | |
333 | ||
334 | return (!status); | |
eb66bc71 | 335 | #endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
336 | } |
337 | ||
338 | ||
339 | /* | |
340 | * 'cupsSetServerCredentials()' - Set the default server credentials. | |
341 | * | |
342 | * Note: The server credentials are used by all threads in the running process. | |
343 | * This function is threadsafe. | |
344 | * | |
e1f19878 | 345 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
346 | */ |
347 | ||
348 | int /* O - 1 on success, 0 on failure */ | |
349 | cupsSetServerCredentials( | |
f93b32b6 | 350 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
351 | const char *common_name, /* I - Default common name for server */ |
352 | int auto_create) /* I - 1 = automatically create self-signed certificates */ | |
353 | { | |
a27a134a MS |
354 | DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create)); |
355 | ||
eb66bc71 | 356 | #ifdef HAVE_SECKEYCHAINOPEN |
f93b32b6 | 357 | char filename[1024]; /* Filename for keychain */ |
c0459938 | 358 | SecKeychainRef keychain = NULL;/* Temporary keychain */ |
fcea7df4 | 359 | OSStatus status; /* Status code */ |
3af9ac9e | 360 | |
c0459938 | 361 | |
f93b32b6 | 362 | if (!path) |
005f7f1f | 363 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 364 | |
fcea7df4 | 365 | if ((status = SecKeychainOpen(path, &keychain)) != noErr) |
c0459938 MS |
366 | { |
367 | /* TODO: Set cups last error string */ | |
fcea7df4 | 368 | DEBUG_printf(("1cupsSetServerCredentials: Unable to open keychain (%d), returning 0.", (int)status)); |
c0459938 MS |
369 | return (0); |
370 | } | |
371 | ||
372 | _cupsMutexLock(&tls_mutex); | |
373 | ||
374 | /* | |
375 | * Close any keychain that is currently open... | |
376 | */ | |
377 | ||
378 | if (tls_keychain) | |
379 | CFRelease(tls_keychain); | |
380 | ||
41e0907c MS |
381 | if (tls_keypath) |
382 | _cupsStrFree(tls_keypath); | |
383 | ||
c0459938 MS |
384 | if (tls_common_name) |
385 | _cupsStrFree(tls_common_name); | |
386 | ||
387 | /* | |
388 | * Save the new keychain... | |
389 | */ | |
390 | ||
391 | tls_keychain = keychain; | |
41e0907c | 392 | tls_keypath = _cupsStrAlloc(path); |
c0459938 MS |
393 | tls_auto_create = auto_create; |
394 | tls_common_name = _cupsStrAlloc(common_name); | |
395 | ||
396 | _cupsMutexUnlock(&tls_mutex); | |
397 | ||
a27a134a | 398 | DEBUG_puts("1cupsSetServerCredentials: Opened keychain, returning 1."); |
c0459938 | 399 | return (1); |
eb66bc71 MS |
400 | |
401 | #else | |
fc4bbb58 MS |
402 | if (path) |
403 | { | |
404 | DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0."); | |
405 | return (0); | |
406 | } | |
407 | ||
408 | tls_auto_create = auto_create; | |
409 | tls_common_name = _cupsStrAlloc(common_name); | |
410 | ||
411 | return (1); | |
eb66bc71 | 412 | #endif /* HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
413 | } |
414 | ||
2c85b752 MS |
415 | |
416 | /* | |
417 | * 'httpCopyCredentials()' - Copy the credentials associated with the peer in | |
418 | * an encrypted connection. | |
419 | * | |
420 | * @since CUPS 1.5/OS X 10.7@ | |
421 | */ | |
422 | ||
423 | int /* O - Status of call (0 = success) */ | |
424 | httpCopyCredentials( | |
425 | http_t *http, /* I - Connection to server */ | |
426 | cups_array_t **credentials) /* O - Array of credentials */ | |
427 | { | |
428 | OSStatus error; /* Error code */ | |
429 | SecTrustRef peerTrust; /* Peer trust reference */ | |
430 | CFIndex count; /* Number of credentials */ | |
431 | SecCertificateRef secCert; /* Certificate reference */ | |
432 | CFDataRef data; /* Certificate data */ | |
433 | int i; /* Looping var */ | |
434 | ||
435 | ||
807315e6 | 436 | DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", (void *)http, (void *)credentials)); |
376d7c69 | 437 | |
2c85b752 MS |
438 | if (credentials) |
439 | *credentials = NULL; | |
440 | ||
441 | if (!http || !http->tls || !credentials) | |
442 | return (-1); | |
443 | ||
444 | if (!(error = SSLCopyPeerTrust(http->tls, &peerTrust)) && peerTrust) | |
445 | { | |
376d7c69 MS |
446 | DEBUG_printf(("2httpCopyCredentials: Peer provided %d certificates.", (int)SecTrustGetCertificateCount(peerTrust))); |
447 | ||
2c85b752 MS |
448 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) |
449 | { | |
450 | count = SecTrustGetCertificateCount(peerTrust); | |
451 | ||
452 | for (i = 0; i < count; i ++) | |
453 | { | |
454 | secCert = SecTrustGetCertificateAtIndex(peerTrust, i); | |
376d7c69 MS |
455 | |
456 | #ifdef DEBUG | |
457 | CFStringRef cf_name = SecCertificateCopySubjectSummary(secCert); | |
458 | char name[1024]; | |
459 | if (cf_name) | |
460 | CFStringGetCString(cf_name, name, sizeof(name), kCFStringEncodingUTF8); | |
461 | else | |
462 | strlcpy(name, "unknown", sizeof(name)); | |
463 | ||
464 | DEBUG_printf(("2httpCopyCredentials: Certificate %d name is \"%s\".", i, name)); | |
465 | #endif /* DEBUG */ | |
466 | ||
88f1e9c8 | 467 | if ((data = SecCertificateCopyData(secCert)) != NULL) |
2c85b752 | 468 | { |
376d7c69 MS |
469 | DEBUG_printf(("2httpCopyCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); |
470 | ||
7e86f2f6 | 471 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); |
2c85b752 MS |
472 | CFRelease(data); |
473 | } | |
474 | } | |
475 | } | |
476 | ||
477 | CFRelease(peerTrust); | |
478 | } | |
479 | ||
480 | return (error); | |
481 | } | |
482 | ||
483 | ||
484 | /* | |
485 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
486 | */ | |
487 | ||
488 | http_tls_credentials_t /* O - Internal credentials */ | |
489 | _httpCreateCredentials( | |
490 | cups_array_t *credentials) /* I - Array of credentials */ | |
491 | { | |
492 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
493 | SecCertificateRef secCert; /* Certificate reference */ | |
2c85b752 MS |
494 | http_credential_t *credential; /* Credential data */ |
495 | ||
496 | ||
497 | if (!credentials) | |
498 | return (NULL); | |
499 | ||
500 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
501 | cupsArrayCount(credentials), | |
502 | &kCFTypeArrayCallBacks)) == NULL) | |
503 | return (NULL); | |
504 | ||
505 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
506 | credential; | |
507 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
508 | { | |
9653cfdf | 509 | if ((secCert = http_cdsa_create_credential(credential)) != NULL) |
2c85b752 | 510 | { |
9653cfdf MS |
511 | CFArrayAppendValue(peerCerts, secCert); |
512 | CFRelease(secCert); | |
2c85b752 MS |
513 | } |
514 | } | |
515 | ||
516 | return (peerCerts); | |
517 | } | |
518 | ||
519 | ||
3af9ac9e | 520 | /* |
524c65e6 | 521 | * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name. |
3af9ac9e | 522 | * |
e1f19878 | 523 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
524 | */ |
525 | ||
524c65e6 MS |
526 | int /* O - 1 if valid, 0 otherwise */ |
527 | httpCredentialsAreValidForName( | |
528 | cups_array_t *credentials, /* I - Credentials */ | |
529 | const char *common_name) /* I - Name to check */ | |
530 | { | |
531 | SecCertificateRef secCert; /* Certificate reference */ | |
532 | CFStringRef cfcert_name = NULL; | |
533 | /* Certificate's common name (CF string) */ | |
534 | char cert_name[256]; /* Certificate's common name (C string) */ | |
535 | int valid = 1; /* Valid name? */ | |
536 | ||
537 | ||
538 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
539 | return (0); | |
540 | ||
541 | /* | |
542 | * Compare the common names... | |
543 | */ | |
544 | ||
545 | if ((cfcert_name = SecCertificateCopySubjectSummary(secCert)) == NULL) | |
546 | { | |
547 | /* | |
548 | * Can't get common name, cannot be valid... | |
549 | */ | |
550 | ||
551 | valid = 0; | |
552 | } | |
553 | else if (CFStringGetCString(cfcert_name, cert_name, sizeof(cert_name), kCFStringEncodingUTF8) && | |
554 | _cups_strcasecmp(common_name, cert_name)) | |
555 | { | |
556 | /* | |
557 | * Not an exact match for the common name, check for wildcard certs... | |
558 | */ | |
559 | ||
560 | const char *domain = strchr(common_name, '.'); | |
561 | /* Domain in common name */ | |
562 | ||
563 | if (strncmp(cert_name, "*.", 2) || !domain || _cups_strcasecmp(domain, cert_name + 1)) | |
564 | { | |
565 | /* | |
566 | * Not a wildcard match. | |
567 | */ | |
568 | ||
569 | /* TODO: Check subject alternate names */ | |
570 | valid = 0; | |
571 | } | |
572 | } | |
573 | ||
574 | if (cfcert_name) | |
575 | CFRelease(cfcert_name); | |
576 | ||
577 | CFRelease(secCert); | |
578 | ||
579 | return (valid); | |
580 | } | |
581 | ||
582 | ||
583 | /* | |
584 | * 'httpCredentialsGetTrust()' - Return the trust of credentials. | |
585 | * | |
e1f19878 | 586 | * @since CUPS 2.0/OS X 10.10@ |
524c65e6 MS |
587 | */ |
588 | ||
589 | http_trust_t /* O - Level of trust */ | |
590 | httpCredentialsGetTrust( | |
376d7c69 MS |
591 | cups_array_t *credentials, /* I - Credentials */ |
592 | const char *common_name) /* I - Common name for trust lookup */ | |
3af9ac9e | 593 | { |
9653cfdf | 594 | SecCertificateRef secCert; /* Certificate reference */ |
524c65e6 MS |
595 | http_trust_t trust = HTTP_TRUST_OK; |
596 | /* Trusted? */ | |
376d7c69 | 597 | cups_array_t *tcreds = NULL; /* Trusted credentials */ |
9653cfdf MS |
598 | _cups_globals_t *cg = _cupsGlobals(); |
599 | /* Per-thread globals */ | |
3af9ac9e | 600 | |
9653cfdf | 601 | |
376d7c69 | 602 | if (!common_name) |
524c65e6 | 603 | return (HTTP_TRUST_UNKNOWN); |
376d7c69 | 604 | |
9653cfdf | 605 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
524c65e6 | 606 | return (HTTP_TRUST_UNKNOWN); |
9653cfdf | 607 | |
3abb875b MS |
608 | if (cg->any_root < 0) |
609 | _cupsSetDefaults(); | |
610 | ||
376d7c69 | 611 | /* |
88f1e9c8 | 612 | * Look this common name up in the default keychains... |
376d7c69 MS |
613 | */ |
614 | ||
88f1e9c8 | 615 | httpLoadCredentials(NULL, &tcreds, common_name); |
376d7c69 MS |
616 | |
617 | if (tcreds) | |
618 | { | |
619 | char credentials_str[1024], /* String for incoming credentials */ | |
620 | tcreds_str[1024]; /* String for saved credentials */ | |
621 | ||
622 | httpCredentialsString(credentials, credentials_str, sizeof(credentials_str)); | |
623 | httpCredentialsString(tcreds, tcreds_str, sizeof(tcreds_str)); | |
624 | ||
625 | if (strcmp(credentials_str, tcreds_str)) | |
626 | { | |
627 | /* | |
628 | * Credentials don't match, let's look at the expiration date of the new | |
629 | * credentials and allow if the new ones have a later expiration... | |
630 | */ | |
631 | ||
08d56b1f MS |
632 | if (!cg->trust_first) |
633 | { | |
634 | /* | |
635 | * Do not trust certificates on first use... | |
636 | */ | |
637 | ||
638 | trust = HTTP_TRUST_INVALID; | |
639 | } | |
640 | else if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds) || !httpCredentialsAreValidForName(credentials, common_name)) | |
376d7c69 MS |
641 | { |
642 | /* | |
643 | * Either the new credentials are not newly issued, or the common name | |
644 | * does not match the issued certificate... | |
645 | */ | |
646 | ||
524c65e6 | 647 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 648 | } |
524c65e6 | 649 | else if (httpCredentialsGetExpiration(tcreds) < time(NULL)) |
376d7c69 MS |
650 | { |
651 | /* | |
524c65e6 | 652 | * Save the renewed credentials... |
376d7c69 MS |
653 | */ |
654 | ||
524c65e6 MS |
655 | trust = HTTP_TRUST_RENEWED; |
656 | ||
657 | httpSaveCredentials(NULL, credentials, common_name); | |
376d7c69 MS |
658 | } |
659 | } | |
660 | ||
661 | httpFreeCredentials(tcreds); | |
662 | } | |
f51f3773 | 663 | else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name)) |
524c65e6 | 664 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 665 | |
9653cfdf | 666 | if (!cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent())) |
524c65e6 | 667 | trust = HTTP_TRUST_EXPIRED; |
25731360 | 668 | else if (!cg->any_root && cupsArrayCount(credentials) == 1) |
524c65e6 | 669 | trust = HTTP_TRUST_INVALID; |
08d56b1f MS |
670 | else if (!cg->trust_first) |
671 | trust = HTTP_TRUST_INVALID; | |
376d7c69 | 672 | |
9653cfdf MS |
673 | CFRelease(secCert); |
674 | ||
524c65e6 | 675 | return (trust); |
3af9ac9e MS |
676 | } |
677 | ||
678 | ||
679 | /* | |
680 | * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials. | |
681 | * | |
e1f19878 | 682 | * @since CUPS 2.0/OS X 10.10@ |
3af9ac9e MS |
683 | */ |
684 | ||
685 | time_t /* O - Expiration date of credentials */ | |
686 | httpCredentialsGetExpiration( | |
687 | cups_array_t *credentials) /* I - Credentials */ | |
688 | { | |
9653cfdf MS |
689 | SecCertificateRef secCert; /* Certificate reference */ |
690 | time_t expiration; /* Expiration date */ | |
3af9ac9e | 691 | |
9653cfdf MS |
692 | |
693 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
694 | return (0); | |
695 | ||
376d7c69 | 696 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); |
9653cfdf MS |
697 | |
698 | CFRelease(secCert); | |
699 | ||
700 | return (expiration); | |
3af9ac9e MS |
701 | } |
702 | ||
703 | ||
72d05bc9 MS |
704 | /* |
705 | * 'httpCredentialsString()' - Return a string representing the credentials. | |
706 | * | |
e1f19878 | 707 | * @since CUPS 2.0/OS X 10.10@ |
72d05bc9 MS |
708 | */ |
709 | ||
710 | size_t /* O - Total size of credentials string */ | |
711 | httpCredentialsString( | |
712 | cups_array_t *credentials, /* I - Credentials */ | |
713 | char *buffer, /* I - Buffer or @code NULL@ */ | |
714 | size_t bufsize) /* I - Size of buffer */ | |
715 | { | |
376d7c69 | 716 | http_credential_t *first; /* First certificate */ |
9653cfdf | 717 | SecCertificateRef secCert; /* Certificate reference */ |
9653cfdf MS |
718 | |
719 | ||
807315e6 | 720 | DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", (void *)credentials, (void *)buffer, CUPS_LLCAST bufsize)); |
376d7c69 | 721 | |
9653cfdf MS |
722 | if (!buffer) |
723 | return (0); | |
72d05bc9 MS |
724 | |
725 | if (buffer && bufsize > 0) | |
726 | *buffer = '\0'; | |
727 | ||
376d7c69 MS |
728 | if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL && |
729 | (secCert = http_cdsa_create_credential(first)) != NULL) | |
9653cfdf | 730 | { |
376d7c69 MS |
731 | CFStringRef cf_name; /* CF common name string */ |
732 | char name[256]; /* Common name associated with cert */ | |
733 | time_t expiration; /* Expiration date of cert */ | |
734 | _cups_md5_state_t md5_state; /* MD5 state */ | |
735 | unsigned char md5_digest[16]; /* MD5 result */ | |
736 | ||
737 | if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL) | |
9653cfdf | 738 | { |
376d7c69 MS |
739 | CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8); |
740 | CFRelease(cf_name); | |
9653cfdf | 741 | } |
376d7c69 MS |
742 | else |
743 | strlcpy(name, "unknown", sizeof(name)); | |
744 | ||
745 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); | |
746 | ||
747 | _cupsMD5Init(&md5_state); | |
748 | _cupsMD5Append(&md5_state, first->data, (int)first->datalen); | |
749 | _cupsMD5Finish(&md5_state, md5_digest); | |
750 | ||
751 | 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 |
752 | |
753 | CFRelease(secCert); | |
754 | } | |
755 | ||
376d7c69 MS |
756 | DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer)); |
757 | ||
9653cfdf | 758 | return (strlen(buffer)); |
72d05bc9 MS |
759 | } |
760 | ||
761 | ||
2c85b752 MS |
762 | /* |
763 | * '_httpFreeCredentials()' - Free internal credentials. | |
764 | */ | |
765 | ||
766 | void | |
767 | _httpFreeCredentials( | |
768 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
769 | { | |
770 | if (!credentials) | |
771 | return; | |
772 | ||
773 | CFRelease(credentials); | |
774 | } | |
775 | ||
776 | ||
72d05bc9 MS |
777 | /* |
778 | * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file. | |
779 | * | |
e1f19878 | 780 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
781 | */ |
782 | ||
dafebafd | 783 | int /* O - 0 on success, -1 on error */ |
72d05bc9 | 784 | httpLoadCredentials( |
f93b32b6 | 785 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
786 | cups_array_t **credentials, /* IO - Credentials */ |
787 | const char *common_name) /* I - Common name for credentials */ | |
788 | { | |
dafebafd | 789 | OSStatus err; /* Error info */ |
fc4bbb58 | 790 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 791 | char filename[1024]; /* Filename for keychain */ |
dafebafd | 792 | SecKeychainRef keychain = NULL;/* Keychain reference */ |
fc4bbb58 MS |
793 | CFArrayRef list; /* Keychain list */ |
794 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 MS |
795 | SecCertificateRef cert = NULL; /* Certificate */ |
796 | CFDataRef data; /* Certificate data */ | |
dafebafd MS |
797 | SecPolicyRef policy = NULL; /* Policy ref */ |
798 | CFStringRef cfcommon_name = NULL; | |
799 | /* Server name */ | |
800 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
dafebafd MS |
801 | |
802 | ||
807315e6 | 803 | DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name)); |
88f1e9c8 MS |
804 | |
805 | if (!credentials) | |
806 | return (-1); | |
807 | ||
808 | *credentials = NULL; | |
809 | ||
fc4bbb58 | 810 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 811 | if (!path) |
005f7f1f | 812 | path = http_cdsa_default_path(filename, sizeof(filename)); |
88f1e9c8 | 813 | |
88f1e9c8 | 814 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
dafebafd MS |
815 | goto cleanup; |
816 | ||
fc4bbb58 MS |
817 | #else |
818 | if (path) | |
819 | return (-1); | |
820 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
821 | ||
dafebafd MS |
822 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
823 | ||
824 | policy = SecPolicyCreateSSL(1, cfcommon_name); | |
825 | ||
826 | if (cfcommon_name) | |
827 | CFRelease(cfcommon_name); | |
828 | ||
829 | if (!policy) | |
830 | goto cleanup; | |
831 | ||
832 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
833 | goto cleanup; | |
834 | ||
88f1e9c8 | 835 | CFDictionaryAddValue(query, kSecClass, kSecClassCertificate); |
dafebafd MS |
836 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); |
837 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
838 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
dafebafd | 839 | |
fc4bbb58 MS |
840 | #ifdef HAVE_SECKEYCHAINOPEN |
841 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks); | |
842 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
dafebafd | 843 | CFRelease(list); |
fc4bbb58 | 844 | #endif /* HAVE_SECKEYCHAINOPEN */ |
dafebafd | 845 | |
88f1e9c8 | 846 | err = SecItemCopyMatching(query, (CFTypeRef *)&cert); |
dafebafd MS |
847 | |
848 | if (err) | |
849 | goto cleanup; | |
850 | ||
88f1e9c8 | 851 | if (CFGetTypeID(cert) != SecCertificateGetTypeID()) |
dafebafd MS |
852 | goto cleanup; |
853 | ||
88f1e9c8 MS |
854 | if ((data = SecCertificateCopyData(cert)) != NULL) |
855 | { | |
856 | DEBUG_printf(("1httpLoadCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); | |
857 | ||
858 | *credentials = cupsArrayNew(NULL, NULL); | |
859 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); | |
860 | CFRelease(data); | |
861 | } | |
dafebafd MS |
862 | |
863 | cleanup : | |
864 | ||
fc4bbb58 | 865 | #ifdef HAVE_SECKEYCHAINOPEN |
dafebafd MS |
866 | if (keychain) |
867 | CFRelease(keychain); | |
fc4bbb58 | 868 | #endif /* HAVE_SECKEYCHAINOPEN */ |
88f1e9c8 MS |
869 | if (cert) |
870 | CFRelease(cert); | |
dafebafd MS |
871 | if (policy) |
872 | CFRelease(policy); | |
873 | if (query) | |
874 | CFRelease(query); | |
875 | ||
88f1e9c8 MS |
876 | DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1)); |
877 | ||
878 | return (*credentials ? 0 : -1); | |
72d05bc9 MS |
879 | } |
880 | ||
881 | ||
72d05bc9 MS |
882 | /* |
883 | * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file. | |
884 | * | |
e1f19878 | 885 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
886 | */ |
887 | ||
888 | int /* O - -1 on error, 0 on success */ | |
889 | httpSaveCredentials( | |
f93b32b6 | 890 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
891 | cups_array_t *credentials, /* I - Credentials */ |
892 | const char *common_name) /* I - Common name for credentials */ | |
893 | { | |
88f1e9c8 | 894 | int ret = -1; /* Return value */ |
41e0907c | 895 | OSStatus err; /* Error info */ |
fc4bbb58 | 896 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 MS |
897 | char filename[1024]; /* Filename for keychain */ |
898 | SecKeychainRef keychain = NULL;/* Keychain reference */ | |
fc4bbb58 MS |
899 | CFArrayRef list; /* Keychain list */ |
900 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 | 901 | SecCertificateRef cert = NULL; /* Certificate */ |
88f1e9c8 | 902 | CFMutableDictionaryRef attrs = NULL; /* Attributes for add */ |
41e0907c MS |
903 | |
904 | ||
807315e6 | 905 | DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name)); |
88f1e9c8 | 906 | if (!credentials) |
41e0907c MS |
907 | goto cleanup; |
908 | ||
524c65e6 MS |
909 | if (!httpCredentialsAreValidForName(credentials, common_name)) |
910 | { | |
911 | DEBUG_puts("1httpSaveCredentials: Common name does not match."); | |
912 | return (-1); | |
913 | } | |
914 | ||
88f1e9c8 MS |
915 | if ((cert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
916 | { | |
917 | DEBUG_puts("1httpSaveCredentials: Unable to create certificate."); | |
41e0907c | 918 | goto cleanup; |
88f1e9c8 | 919 | } |
41e0907c | 920 | |
fc4bbb58 | 921 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 922 | if (!path) |
005f7f1f | 923 | path = http_cdsa_default_path(filename, sizeof(filename)); |
2c85b752 | 924 | |
88f1e9c8 | 925 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
2c85b752 | 926 | { |
88f1e9c8 MS |
927 | DEBUG_printf(("1httpSaveCredentials: SecKeychainOpen returned %d.", (int)err)); |
928 | goto cleanup; | |
2c85b752 | 929 | } |
2c85b752 | 930 | |
fc4bbb58 MS |
931 | #else |
932 | if (path) | |
933 | return (-1); | |
934 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 | 935 | |
88f1e9c8 MS |
936 | if ((attrs = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL) |
937 | { | |
938 | DEBUG_puts("1httpSaveCredentials: Unable to create dictionary."); | |
939 | goto cleanup; | |
2c85b752 MS |
940 | } |
941 | ||
88f1e9c8 | 942 | CFDictionaryAddValue(attrs, kSecClass, kSecClassCertificate); |
88f1e9c8 | 943 | CFDictionaryAddValue(attrs, kSecValueRef, cert); |
fc4bbb58 MS |
944 | |
945 | #ifdef HAVE_SECKEYCHAINOPEN | |
946 | if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL) | |
947 | { | |
948 | DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains."); | |
949 | goto cleanup; | |
950 | } | |
88f1e9c8 | 951 | CFDictionaryAddValue(attrs, kSecMatchSearchList, list); |
fc4bbb58 MS |
952 | CFRelease(list); |
953 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 | 954 | |
88f1e9c8 | 955 | /* Note: SecItemAdd consumes "attrs"... */ |
524c65e6 | 956 | err = SecItemAdd(attrs, NULL); |
88f1e9c8 | 957 | DEBUG_printf(("1httpSaveCredentials: SecItemAdd returned %d.", (int)err)); |
2c85b752 | 958 | |
88f1e9c8 | 959 | cleanup : |
2c85b752 | 960 | |
fc4bbb58 | 961 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 MS |
962 | if (keychain) |
963 | CFRelease(keychain); | |
fc4bbb58 | 964 | #endif /* HAVE_SECKEYCHAINOPEN */ |
88f1e9c8 MS |
965 | if (cert) |
966 | CFRelease(cert); | |
2c85b752 | 967 | |
88f1e9c8 | 968 | DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret)); |
2c85b752 | 969 | |
88f1e9c8 | 970 | return (ret); |
2c85b752 MS |
971 | } |
972 | ||
973 | ||
974 | /* | |
25731360 | 975 | * '_httpTLSInitialize()' - Initialize the TLS stack. |
2c85b752 MS |
976 | */ |
977 | ||
25731360 MS |
978 | void |
979 | _httpTLSInitialize(void) | |
2c85b752 MS |
980 | { |
981 | /* | |
982 | * Nothing to do... | |
983 | */ | |
984 | } | |
985 | ||
986 | ||
987 | /* | |
25731360 | 988 | * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes. |
2c85b752 MS |
989 | */ |
990 | ||
25731360 MS |
991 | size_t |
992 | _httpTLSPending(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
993 | { |
994 | size_t bytes; /* Bytes that are available */ | |
995 | ||
996 | ||
997 | if (!SSLGetBufferedReadSize(http->tls, &bytes)) | |
998 | return (bytes); | |
999 | ||
1000 | return (0); | |
1001 | } | |
1002 | ||
1003 | ||
1004 | /* | |
25731360 | 1005 | * '_httpTLSRead()' - Read from a SSL/TLS connection. |
2c85b752 MS |
1006 | */ |
1007 | ||
25731360 MS |
1008 | int /* O - Bytes read */ |
1009 | _httpTLSRead(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1010 | char *buf, /* I - Buffer to store data */ |
1011 | int len) /* I - Length of buffer */ | |
1012 | { | |
1013 | int result; /* Return value */ | |
1014 | OSStatus error; /* Error info */ | |
1015 | size_t processed; /* Number of bytes processed */ | |
1016 | ||
1017 | ||
7e86f2f6 | 1018 | error = SSLRead(http->tls, buf, (size_t)len, &processed); |
25731360 | 1019 | DEBUG_printf(("6_httpTLSRead: error=%d, processed=%d", (int)error, |
2c85b752 MS |
1020 | (int)processed)); |
1021 | switch (error) | |
1022 | { | |
1023 | case 0 : | |
1024 | result = (int)processed; | |
1025 | break; | |
1026 | ||
1027 | case errSSLWouldBlock : | |
1028 | if (processed) | |
1029 | result = (int)processed; | |
1030 | else | |
1031 | { | |
1032 | result = -1; | |
1033 | errno = EINTR; | |
1034 | } | |
1035 | break; | |
1036 | ||
1037 | case errSSLClosedGraceful : | |
1038 | default : | |
1039 | if (processed) | |
1040 | result = (int)processed; | |
1041 | else | |
1042 | { | |
1043 | result = -1; | |
1044 | errno = EPIPE; | |
1045 | } | |
1046 | break; | |
1047 | } | |
1048 | ||
1049 | return (result); | |
1050 | } | |
1051 | ||
1052 | ||
63aefcd5 MS |
1053 | /* |
1054 | * '_httpTLSSetOptions()' - Set TLS protocol and cipher suite options. | |
1055 | */ | |
1056 | ||
1057 | void | |
1058 | _httpTLSSetOptions(int options) /* I - Options */ | |
1059 | { | |
1060 | tls_options = options; | |
1061 | } | |
1062 | ||
1063 | ||
2c85b752 | 1064 | /* |
25731360 | 1065 | * '_httpTLSStart()' - Set up SSL/TLS support on a connection. |
2c85b752 MS |
1066 | */ |
1067 | ||
25731360 MS |
1068 | int /* O - 0 on success, -1 on failure */ |
1069 | _httpTLSStart(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1070 | { |
1071 | char hostname[256], /* Hostname */ | |
1072 | *hostptr; /* Pointer into hostname */ | |
1073 | _cups_globals_t *cg = _cupsGlobals(); | |
1074 | /* Pointer to library globals */ | |
1075 | OSStatus error; /* Error code */ | |
1076 | const char *message = NULL;/* Error message */ | |
1077 | cups_array_t *credentials; /* Credentials array */ | |
1078 | cups_array_t *names; /* CUPS distinguished names */ | |
1079 | CFArrayRef dn_array; /* CF distinguished names array */ | |
1080 | CFIndex count; /* Number of credentials */ | |
1081 | CFDataRef data; /* Certificate data */ | |
1082 | int i; /* Looping var */ | |
1083 | http_credential_t *credential; /* Credential data */ | |
1084 | ||
1085 | ||
807315e6 | 1086 | DEBUG_printf(("3_httpTLSStart(http=%p)", (void *)http)); |
b37d45d9 MS |
1087 | |
1088 | if (tls_options < 0) | |
1089 | { | |
1090 | DEBUG_puts("4_httpTLSStart: Setting defaults."); | |
1091 | _cupsSetDefaults(); | |
1092 | DEBUG_printf(("4_httpTLSStart: tls_options=%x", tls_options)); | |
1093 | } | |
2c85b752 | 1094 | |
c913d726 | 1095 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 1096 | if (http->mode == _HTTP_MODE_SERVER && !tls_keychain) |
2c85b752 | 1097 | { |
25731360 | 1098 | DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called."); |
41e0907c MS |
1099 | http->error = errno = EINVAL; |
1100 | http->status = HTTP_STATUS_ERROR; | |
1101 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Server credentials not set."), 1); | |
2c85b752 | 1102 | |
41e0907c | 1103 | return (-1); |
2c85b752 | 1104 | } |
2274d26b | 1105 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2c85b752 | 1106 | |
72d05bc9 | 1107 | if ((http->tls = SSLCreateContext(kCFAllocatorDefault, http->mode == _HTTP_MODE_CLIENT ? kSSLClientSide : kSSLServerSide, kSSLStreamType)) == NULL) |
2c85b752 | 1108 | { |
25731360 | 1109 | DEBUG_puts("4_httpTLSStart: SSLCreateContext failed."); |
2c85b752 MS |
1110 | http->error = errno = ENOMEM; |
1111 | http->status = HTTP_STATUS_ERROR; | |
1112 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
1113 | ||
1114 | return (-1); | |
1115 | } | |
1116 | ||
1117 | error = SSLSetConnection(http->tls, http); | |
25731360 | 1118 | DEBUG_printf(("4_httpTLSStart: SSLSetConnection, error=%d", (int)error)); |
2c85b752 MS |
1119 | |
1120 | if (!error) | |
1121 | { | |
1122 | error = SSLSetIOFuncs(http->tls, http_cdsa_read, http_cdsa_write); | |
25731360 | 1123 | DEBUG_printf(("4_httpTLSStart: SSLSetIOFuncs, error=%d", (int)error)); |
2c85b752 MS |
1124 | } |
1125 | ||
1126 | if (!error) | |
1127 | { | |
1128 | error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth, | |
1129 | true); | |
63aefcd5 MS |
1130 | DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", (int)error)); |
1131 | } | |
1132 | ||
1133 | if (!error) | |
1134 | { | |
ee6226a5 | 1135 | SSLProtocol minProtocol; |
4492316e | 1136 | |
ee6226a5 MS |
1137 | if (tls_options & _HTTP_TLS_DENY_TLS10) |
1138 | minProtocol = kTLSProtocol11; | |
1139 | else if (tls_options & _HTTP_TLS_ALLOW_SSL3) | |
1140 | minProtocol = kSSLProtocol3; | |
1141 | else | |
1142 | minProtocol = kTLSProtocol1; | |
1143 | ||
1144 | error = SSLSetProtocolVersionMin(http->tls, minProtocol); | |
1145 | DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMin(%d), error=%d", minProtocol, (int)error)); | |
63aefcd5 MS |
1146 | } |
1147 | ||
ee6226a5 | 1148 | # if HAVE_SSLSETENABLEDCIPHERS |
63aefcd5 MS |
1149 | if (!error) |
1150 | { | |
1151 | SSLCipherSuite supported[100]; /* Supported cipher suites */ | |
1152 | size_t num_supported; /* Number of supported cipher suites */ | |
1153 | SSLCipherSuite enabled[100]; /* Cipher suites to enable */ | |
1154 | size_t num_enabled; /* Number of cipher suites to enable */ | |
1155 | ||
1156 | num_supported = sizeof(supported) / sizeof(supported[0]); | |
1157 | error = SSLGetSupportedCiphers(http->tls, supported, &num_supported); | |
1158 | ||
1159 | if (!error) | |
1160 | { | |
1161 | DEBUG_printf(("4_httpTLSStart: %d cipher suites supported.", (int)num_supported)); | |
1162 | ||
1163 | for (i = 0, num_enabled = 0; i < (int)num_supported && num_enabled < (sizeof(enabled) / sizeof(enabled[0])); i ++) | |
1164 | { | |
1165 | switch (supported[i]) | |
1166 | { | |
1167 | /* Obviously insecure cipher suites that we never want to use */ | |
1168 | case SSL_NULL_WITH_NULL_NULL : | |
1169 | case SSL_RSA_WITH_NULL_MD5 : | |
1170 | case SSL_RSA_WITH_NULL_SHA : | |
1171 | case SSL_RSA_EXPORT_WITH_RC4_40_MD5 : | |
1172 | case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 : | |
1173 | case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1174 | case SSL_RSA_WITH_DES_CBC_SHA : | |
1175 | case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1176 | case SSL_DH_DSS_WITH_DES_CBC_SHA : | |
1177 | case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1178 | case SSL_DH_RSA_WITH_DES_CBC_SHA : | |
1179 | case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1180 | case SSL_DHE_DSS_WITH_DES_CBC_SHA : | |
1181 | case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1182 | case SSL_DHE_RSA_WITH_DES_CBC_SHA : | |
1183 | case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5 : | |
1184 | case SSL_DH_anon_WITH_RC4_128_MD5 : | |
1185 | case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA : | |
1186 | case SSL_DH_anon_WITH_DES_CBC_SHA : | |
1187 | case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA : | |
1188 | case SSL_FORTEZZA_DMS_WITH_NULL_SHA : | |
1189 | case TLS_DH_anon_WITH_AES_128_CBC_SHA : | |
1190 | case TLS_DH_anon_WITH_AES_256_CBC_SHA : | |
1191 | case TLS_ECDH_ECDSA_WITH_NULL_SHA : | |
1192 | case TLS_ECDHE_RSA_WITH_NULL_SHA : | |
1193 | case TLS_ECDH_anon_WITH_NULL_SHA : | |
1194 | case TLS_ECDH_anon_WITH_RC4_128_SHA : | |
1195 | case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA : | |
1196 | case TLS_ECDH_anon_WITH_AES_128_CBC_SHA : | |
1197 | case TLS_ECDH_anon_WITH_AES_256_CBC_SHA : | |
1198 | case TLS_RSA_WITH_NULL_SHA256 : | |
1199 | case TLS_DH_anon_WITH_AES_128_CBC_SHA256 : | |
1200 | case TLS_DH_anon_WITH_AES_256_CBC_SHA256 : | |
1201 | case TLS_PSK_WITH_NULL_SHA : | |
1202 | case TLS_DHE_PSK_WITH_NULL_SHA : | |
1203 | case TLS_RSA_PSK_WITH_NULL_SHA : | |
1204 | case TLS_DH_anon_WITH_AES_128_GCM_SHA256 : | |
1205 | case TLS_DH_anon_WITH_AES_256_GCM_SHA384 : | |
1206 | case TLS_PSK_WITH_NULL_SHA256 : | |
1207 | case TLS_PSK_WITH_NULL_SHA384 : | |
1208 | case TLS_DHE_PSK_WITH_NULL_SHA256 : | |
1209 | case TLS_DHE_PSK_WITH_NULL_SHA384 : | |
1210 | case TLS_RSA_PSK_WITH_NULL_SHA256 : | |
1211 | case TLS_RSA_PSK_WITH_NULL_SHA384 : | |
1212 | case SSL_RSA_WITH_DES_CBC_MD5 : | |
b37d45d9 | 1213 | DEBUG_printf(("4_httpTLSStart: Excluding insecure cipher suite %d", supported[i])); |
63aefcd5 MS |
1214 | break; |
1215 | ||
1216 | /* RC4 cipher suites that should only be used as a last resort */ | |
1217 | case SSL_RSA_WITH_RC4_128_MD5 : | |
1218 | case SSL_RSA_WITH_RC4_128_SHA : | |
1219 | case TLS_ECDH_ECDSA_WITH_RC4_128_SHA : | |
1220 | case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA : | |
1221 | case TLS_ECDH_RSA_WITH_RC4_128_SHA : | |
1222 | case TLS_ECDHE_RSA_WITH_RC4_128_SHA : | |
1223 | case TLS_PSK_WITH_RC4_128_SHA : | |
1224 | case TLS_DHE_PSK_WITH_RC4_128_SHA : | |
1225 | case TLS_RSA_PSK_WITH_RC4_128_SHA : | |
1226 | if (tls_options & _HTTP_TLS_ALLOW_RC4) | |
1227 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1228 | else |
1229 | DEBUG_printf(("4_httpTLSStart: Excluding RC4 cipher suite %d", supported[i])); | |
63aefcd5 MS |
1230 | break; |
1231 | ||
ee6226a5 MS |
1232 | /* DH/DHE cipher suites that are problematic with parameters < 1024 bits */ |
1233 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA : | |
1234 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA : | |
1235 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA : | |
1236 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA : | |
1237 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA : | |
1238 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA : | |
1239 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA : | |
1240 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA : | |
1241 | case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA : | |
1242 | case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA : | |
bdc4056c | 1243 | // case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA : |
ee6226a5 MS |
1244 | case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA : |
1245 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA256 : | |
1246 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA256 : | |
1247 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 : | |
1248 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 : | |
1249 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA256 : | |
1250 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA256 : | |
1251 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 : | |
1252 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 : | |
1253 | case TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA : | |
1254 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA : | |
1255 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA : | |
bdc4056c MS |
1256 | // case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 : |
1257 | // case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1258 | case TLS_DH_RSA_WITH_AES_128_GCM_SHA256 : |
1259 | case TLS_DH_RSA_WITH_AES_256_GCM_SHA384 : | |
bdc4056c MS |
1260 | // case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 : |
1261 | // case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1262 | case TLS_DH_DSS_WITH_AES_128_GCM_SHA256 : |
1263 | case TLS_DH_DSS_WITH_AES_256_GCM_SHA384 : | |
1264 | case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 : | |
1265 | case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 : | |
1266 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 : | |
1267 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 : | |
1268 | if (tls_options & _HTTP_TLS_ALLOW_DH) | |
1269 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1270 | else |
1271 | DEBUG_printf(("4_httpTLSStart: Excluding DH/DHE cipher suite %d", supported[i])); | |
ee6226a5 MS |
1272 | break; |
1273 | ||
63aefcd5 MS |
1274 | /* Anything else we'll assume is secure */ |
1275 | default : | |
1276 | enabled[num_enabled ++] = supported[i]; | |
1277 | break; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | DEBUG_printf(("4_httpTLSStart: %d cipher suites enabled.", (int)num_enabled)); | |
1282 | error = SSLSetEnabledCiphers(http->tls, enabled, num_enabled); | |
1283 | } | |
2c85b752 | 1284 | } |
ee6226a5 | 1285 | #endif /* HAVE_SSLSETENABLEDCIPHERS */ |
2c85b752 | 1286 | |
41e0907c | 1287 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1288 | { |
41e0907c MS |
1289 | /* |
1290 | * Client: set client-side credentials, if any... | |
1291 | */ | |
1292 | ||
2c85b752 MS |
1293 | if (cg->client_cert_cb) |
1294 | { | |
1295 | error = SSLSetSessionOption(http->tls, | |
1296 | kSSLSessionOptionBreakOnCertRequested, true); | |
25731360 | 1297 | DEBUG_printf(("4_httpTLSStart: kSSLSessionOptionBreakOnCertRequested, " |
2c85b752 MS |
1298 | "error=%d", (int)error)); |
1299 | } | |
1300 | else | |
1301 | { | |
88f1e9c8 MS |
1302 | error = http_cdsa_set_credentials(http); |
1303 | DEBUG_printf(("4_httpTLSStart: http_cdsa_set_credentials, error=%d", | |
2c85b752 MS |
1304 | (int)error)); |
1305 | } | |
1306 | } | |
41e0907c MS |
1307 | else if (!error) |
1308 | { | |
1309 | /* | |
1310 | * Server: find/create a certificate for TLS... | |
1311 | */ | |
1312 | ||
1313 | if (http->fields[HTTP_FIELD_HOST][0]) | |
1314 | { | |
1315 | /* | |
1316 | * Use hostname for TLS upgrade... | |
1317 | */ | |
1318 | ||
1319 | strlcpy(hostname, http->fields[HTTP_FIELD_HOST], sizeof(hostname)); | |
1320 | } | |
1321 | else | |
1322 | { | |
1323 | /* | |
1324 | * Resolve hostname from connection address... | |
1325 | */ | |
1326 | ||
1327 | http_addr_t addr; /* Connection address */ | |
1328 | socklen_t addrlen; /* Length of address */ | |
1329 | ||
1330 | addrlen = sizeof(addr); | |
1331 | if (getsockname(http->fd, (struct sockaddr *)&addr, &addrlen)) | |
1332 | { | |
25731360 | 1333 | DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno))); |
41e0907c MS |
1334 | hostname[0] = '\0'; |
1335 | } | |
1336 | else if (httpAddrLocalhost(&addr)) | |
1337 | hostname[0] = '\0'; | |
1338 | else | |
a27a134a MS |
1339 | { |
1340 | httpAddrLookup(&addr, hostname, sizeof(hostname)); | |
25731360 | 1341 | DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname)); |
a27a134a | 1342 | } |
41e0907c MS |
1343 | } |
1344 | ||
a27a134a MS |
1345 | if (isdigit(hostname[0] & 255) || hostname[0] == '[') |
1346 | hostname[0] = '\0'; /* Don't allow numeric addresses */ | |
1347 | ||
41e0907c MS |
1348 | if (hostname[0]) |
1349 | http->tls_credentials = http_cdsa_copy_server(hostname); | |
1350 | else if (tls_common_name) | |
1351 | http->tls_credentials = http_cdsa_copy_server(tls_common_name); | |
1352 | ||
1353 | if (!http->tls_credentials && tls_auto_create && (hostname[0] || tls_common_name)) | |
1354 | { | |
25731360 | 1355 | DEBUG_printf(("4_httpTLSStart: Auto-create credentials for \"%s\".", hostname[0] ? hostname : tls_common_name)); |
41e0907c MS |
1356 | |
1357 | if (!cupsMakeServerCredentials(tls_keypath, hostname[0] ? hostname : tls_common_name, 0, NULL, time(NULL) + 365 * 86400)) | |
1358 | { | |
25731360 | 1359 | DEBUG_puts("4_httpTLSStart: cupsMakeServerCredentials failed."); |
41e0907c MS |
1360 | http->error = errno = EINVAL; |
1361 | http->status = HTTP_STATUS_ERROR; | |
1362 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create server credentials."), 1); | |
1363 | ||
1364 | return (-1); | |
1365 | } | |
1366 | ||
1367 | http->tls_credentials = http_cdsa_copy_server(hostname[0] ? hostname : tls_common_name); | |
1368 | } | |
1369 | ||
1370 | if (!http->tls_credentials) | |
1371 | { | |
25731360 | 1372 | DEBUG_puts("4_httpTLSStart: Unable to find server credentials."); |
41e0907c MS |
1373 | http->error = errno = EINVAL; |
1374 | http->status = HTTP_STATUS_ERROR; | |
1375 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to find server credentials."), 1); | |
1376 | ||
1377 | return (-1); | |
1378 | } | |
1379 | ||
1380 | error = SSLSetCertificate(http->tls, http->tls_credentials); | |
1381 | ||
25731360 | 1382 | DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error)); |
41e0907c MS |
1383 | } |
1384 | ||
807315e6 | 1385 | DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", (void *)http->tls_credentials)); |
2c85b752 MS |
1386 | |
1387 | /* | |
1388 | * Let the server know which hostname/domain we are trying to connect to | |
1389 | * in case it wants to serve up a certificate with a matching common name. | |
1390 | */ | |
1391 | ||
41e0907c | 1392 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1393 | { |
41e0907c MS |
1394 | /* |
1395 | * Client: get the hostname to use for TLS... | |
1396 | */ | |
1397 | ||
1398 | if (httpAddrLocalhost(http->hostaddr)) | |
1399 | { | |
1400 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
1401 | } | |
1402 | else | |
1403 | { | |
1404 | /* | |
1405 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
1406 | */ | |
1407 | ||
1408 | strlcpy(hostname, http->hostname, sizeof(hostname)); | |
1409 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
1410 | *hostptr == '.') | |
1411 | *hostptr = '\0'; | |
1412 | } | |
1413 | ||
2c85b752 MS |
1414 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); |
1415 | ||
25731360 | 1416 | DEBUG_printf(("4_httpTLSStart: SSLSetPeerDomainName, error=%d", (int)error)); |
2c85b752 MS |
1417 | } |
1418 | ||
1419 | if (!error) | |
1420 | { | |
1421 | int done = 0; /* Are we done yet? */ | |
1422 | ||
1423 | while (!error && !done) | |
1424 | { | |
1425 | error = SSLHandshake(http->tls); | |
1426 | ||
25731360 | 1427 | DEBUG_printf(("4_httpTLSStart: SSLHandshake returned %d.", (int)error)); |
2c85b752 MS |
1428 | |
1429 | switch (error) | |
1430 | { | |
1431 | case noErr : | |
1432 | done = 1; | |
1433 | break; | |
1434 | ||
1435 | case errSSLWouldBlock : | |
1436 | error = noErr; /* Force a retry */ | |
1437 | usleep(1000); /* in 1 millisecond */ | |
1438 | break; | |
1439 | ||
1440 | case errSSLServerAuthCompleted : | |
1441 | error = 0; | |
1442 | if (cg->server_cert_cb) | |
1443 | { | |
1444 | error = httpCopyCredentials(http, &credentials); | |
1445 | if (!error) | |
1446 | { | |
1447 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
1448 | cg->server_cert_data); | |
1449 | httpFreeCredentials(credentials); | |
1450 | } | |
1451 | ||
25731360 | 1452 | DEBUG_printf(("4_httpTLSStart: Server certificate callback " |
2c85b752 MS |
1453 | "returned %d.", (int)error)); |
1454 | } | |
1455 | break; | |
1456 | ||
1457 | case errSSLClientCertRequested : | |
1458 | error = 0; | |
1459 | ||
1460 | if (cg->client_cert_cb) | |
1461 | { | |
1462 | names = NULL; | |
1463 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && | |
1464 | dn_array) | |
1465 | { | |
1466 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
1467 | { | |
1468 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
1469 | { | |
1470 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
1471 | ||
1472 | if ((credential = malloc(sizeof(*credential))) != NULL) | |
1473 | { | |
7e86f2f6 | 1474 | credential->datalen = (size_t)CFDataGetLength(data); |
2c85b752 MS |
1475 | if ((credential->data = malloc(credential->datalen))) |
1476 | { | |
1477 | memcpy((void *)credential->data, CFDataGetBytePtr(data), | |
1478 | credential->datalen); | |
1479 | cupsArrayAdd(names, credential); | |
1480 | } | |
1481 | else | |
1482 | free(credential); | |
1483 | } | |
1484 | } | |
1485 | } | |
1486 | ||
1487 | CFRelease(dn_array); | |
1488 | } | |
1489 | ||
1490 | if (!error) | |
1491 | { | |
1492 | error = (cg->client_cert_cb)(http, http->tls, names, | |
1493 | cg->client_cert_data); | |
1494 | ||
25731360 | 1495 | DEBUG_printf(("4_httpTLSStart: Client certificate callback " |
2c85b752 MS |
1496 | "returned %d.", (int)error)); |
1497 | } | |
1498 | ||
1499 | httpFreeCredentials(names); | |
1500 | } | |
1501 | break; | |
1502 | ||
1503 | case errSSLUnknownRootCert : | |
1504 | message = _("Unable to establish a secure connection to host " | |
1505 | "(untrusted certificate)."); | |
1506 | break; | |
1507 | ||
1508 | case errSSLNoRootCert : | |
1509 | message = _("Unable to establish a secure connection to host " | |
1510 | "(self-signed certificate)."); | |
1511 | break; | |
1512 | ||
1513 | case errSSLCertExpired : | |
1514 | message = _("Unable to establish a secure connection to host " | |
1515 | "(expired certificate)."); | |
1516 | break; | |
1517 | ||
1518 | case errSSLCertNotYetValid : | |
1519 | message = _("Unable to establish a secure connection to host " | |
1520 | "(certificate not yet valid)."); | |
1521 | break; | |
1522 | ||
1523 | case errSSLHostNameMismatch : | |
1524 | message = _("Unable to establish a secure connection to host " | |
1525 | "(host name mismatch)."); | |
1526 | break; | |
1527 | ||
1528 | case errSSLXCertChainInvalid : | |
1529 | message = _("Unable to establish a secure connection to host " | |
1530 | "(certificate chain invalid)."); | |
1531 | break; | |
1532 | ||
1533 | case errSSLConnectionRefused : | |
1534 | message = _("Unable to establish a secure connection to host " | |
1535 | "(peer dropped connection before responding)."); | |
1536 | break; | |
1537 | ||
1538 | default : | |
1539 | break; | |
1540 | } | |
1541 | } | |
1542 | } | |
1543 | ||
1544 | if (error) | |
1545 | { | |
1546 | http->error = error; | |
1547 | http->status = HTTP_STATUS_ERROR; | |
1548 | errno = ECONNREFUSED; | |
1549 | ||
1550 | CFRelease(http->tls); | |
1551 | http->tls = NULL; | |
1552 | ||
1553 | /* | |
1554 | * If an error string wasn't set by the callbacks use a generic one... | |
1555 | */ | |
1556 | ||
1557 | if (!message) | |
1558 | #ifdef HAVE_CSSMERRORSTRING | |
1559 | message = cssmErrorString(error); | |
1560 | #else | |
1561 | message = _("Unable to establish a secure connection to host."); | |
1562 | #endif /* HAVE_CSSMERRORSTRING */ | |
1563 | ||
1564 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); | |
1565 | ||
1566 | return (-1); | |
1567 | } | |
1568 | ||
1569 | return (0); | |
1570 | } | |
1571 | ||
1572 | ||
1573 | /* | |
25731360 | 1574 | * '_httpTLSStop()' - Shut down SSL/TLS on a connection. |
2c85b752 MS |
1575 | */ |
1576 | ||
25731360 MS |
1577 | void |
1578 | _httpTLSStop(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1579 | { |
1580 | while (SSLClose(http->tls) == errSSLWouldBlock) | |
1581 | usleep(1000); | |
1582 | ||
1583 | CFRelease(http->tls); | |
1584 | ||
1585 | if (http->tls_credentials) | |
1586 | CFRelease(http->tls_credentials); | |
1587 | ||
1588 | http->tls = NULL; | |
1589 | http->tls_credentials = NULL; | |
1590 | } | |
1591 | ||
1592 | ||
1593 | /* | |
25731360 | 1594 | * '_httpTLSWrite()' - Write to a SSL/TLS connection. |
2c85b752 MS |
1595 | */ |
1596 | ||
25731360 MS |
1597 | int /* O - Bytes written */ |
1598 | _httpTLSWrite(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1599 | const char *buf, /* I - Buffer holding data */ |
1600 | int len) /* I - Length of buffer */ | |
1601 | { | |
1602 | ssize_t result; /* Return value */ | |
1603 | OSStatus error; /* Error info */ | |
1604 | size_t processed; /* Number of bytes processed */ | |
1605 | ||
1606 | ||
807315e6 | 1607 | DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", (void *)http, (void *)buf, len)); |
2c85b752 | 1608 | |
7e86f2f6 | 1609 | error = SSLWrite(http->tls, buf, (size_t)len, &processed); |
2c85b752 MS |
1610 | |
1611 | switch (error) | |
1612 | { | |
1613 | case 0 : | |
1614 | result = (int)processed; | |
1615 | break; | |
1616 | ||
1617 | case errSSLWouldBlock : | |
1618 | if (processed) | |
1619 | { | |
1620 | result = (int)processed; | |
1621 | } | |
1622 | else | |
1623 | { | |
1624 | result = -1; | |
1625 | errno = EINTR; | |
1626 | } | |
1627 | break; | |
1628 | ||
1629 | case errSSLClosedGraceful : | |
1630 | default : | |
1631 | if (processed) | |
1632 | { | |
1633 | result = (int)processed; | |
1634 | } | |
1635 | else | |
1636 | { | |
1637 | result = -1; | |
1638 | errno = EPIPE; | |
1639 | } | |
1640 | break; | |
1641 | } | |
1642 | ||
25731360 | 1643 | DEBUG_printf(("3_httpTLSWrite: Returning %d.", (int)result)); |
2c85b752 MS |
1644 | |
1645 | return ((int)result); | |
1646 | } | |
1647 | ||
1648 | ||
1649 | /* | |
88f1e9c8 | 1650 | * 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain. |
2c85b752 MS |
1651 | */ |
1652 | ||
88f1e9c8 MS |
1653 | static CFArrayRef /* O - Array of certificates or NULL */ |
1654 | http_cdsa_copy_server( | |
1655 | const char *common_name) /* I - Server's hostname */ | |
2c85b752 | 1656 | { |
2274d26b | 1657 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 1658 | OSStatus err; /* Error info */ |
88f1e9c8 MS |
1659 | SecIdentityRef identity = NULL;/* Identity */ |
1660 | CFArrayRef certificates = NULL; | |
1661 | /* Certificate array */ | |
1662 | SecPolicyRef policy = NULL; /* Policy ref */ | |
1663 | CFStringRef cfcommon_name = NULL; | |
1664 | /* Server name */ | |
1665 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
1666 | CFArrayRef list = NULL; /* Keychain list */ | |
2c85b752 | 1667 | |
2c85b752 | 1668 | |
2274d26b MS |
1669 | DEBUG_printf(("3http_cdsa_copy_server(common_name=\"%s\")", common_name)); |
1670 | ||
88f1e9c8 | 1671 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
2c85b752 | 1672 | |
88f1e9c8 MS |
1673 | policy = SecPolicyCreateSSL(1, cfcommon_name); |
1674 | ||
88f1e9c8 | 1675 | if (!policy) |
2274d26b MS |
1676 | { |
1677 | DEBUG_puts("4http_cdsa_copy_server: Unable to create SSL policy."); | |
88f1e9c8 | 1678 | goto cleanup; |
2274d26b | 1679 | } |
88f1e9c8 MS |
1680 | |
1681 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
2274d26b MS |
1682 | { |
1683 | DEBUG_puts("4http_cdsa_copy_server: Unable to create query dictionary."); | |
88f1e9c8 | 1684 | goto cleanup; |
2274d26b | 1685 | } |
88f1e9c8 | 1686 | |
f93b32b6 MS |
1687 | _cupsMutexLock(&tls_mutex); |
1688 | ||
88f1e9c8 MS |
1689 | CFDictionaryAddValue(query, kSecClass, kSecClassIdentity); |
1690 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); | |
1691 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
1692 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
88f1e9c8 | 1693 | |
fc4bbb58 MS |
1694 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks); |
1695 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
88f1e9c8 MS |
1696 | CFRelease(list); |
1697 | ||
1698 | err = SecItemCopyMatching(query, (CFTypeRef *)&identity); | |
1699 | ||
f93b32b6 MS |
1700 | _cupsMutexUnlock(&tls_mutex); |
1701 | ||
2274d26b MS |
1702 | if (err != noErr) |
1703 | { | |
1704 | DEBUG_printf(("4http_cdsa_copy_server: SecItemCopyMatching failed with status %d.", (int)err)); | |
88f1e9c8 | 1705 | goto cleanup; |
2274d26b | 1706 | } |
88f1e9c8 MS |
1707 | |
1708 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
2274d26b MS |
1709 | { |
1710 | DEBUG_puts("4http_cdsa_copy_server: Search returned something that is not an identity."); | |
88f1e9c8 | 1711 | goto cleanup; |
2274d26b | 1712 | } |
88f1e9c8 MS |
1713 | |
1714 | if ((certificates = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks)) == NULL) | |
2274d26b MS |
1715 | { |
1716 | DEBUG_puts("4http_cdsa_copy_server: Unable to create array of certificates."); | |
88f1e9c8 | 1717 | goto cleanup; |
2274d26b | 1718 | } |
88f1e9c8 MS |
1719 | |
1720 | cleanup : | |
1721 | ||
88f1e9c8 MS |
1722 | if (identity) |
1723 | CFRelease(identity); | |
88f1e9c8 MS |
1724 | if (policy) |
1725 | CFRelease(policy); | |
2274d26b MS |
1726 | if (cfcommon_name) |
1727 | CFRelease(cfcommon_name); | |
88f1e9c8 MS |
1728 | if (query) |
1729 | CFRelease(query); | |
1730 | ||
2274d26b MS |
1731 | DEBUG_printf(("4http_cdsa_copy_server: Returning %p.", (void *)certificates)); |
1732 | ||
88f1e9c8 | 1733 | return (certificates); |
2274d26b MS |
1734 | #else |
1735 | ||
1736 | if (!tls_selfsigned) | |
1737 | return (NULL); | |
1738 | ||
1739 | return (CFArrayCreate(NULL, (const void **)&tls_selfsigned, 1, &kCFTypeArrayCallBacks)); | |
1740 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 MS |
1741 | } |
1742 | ||
1743 | ||
2ece34a9 MS |
1744 | /* |
1745 | * 'http_cdsa_create_credential()' - Create a single credential in the internal format. | |
1746 | */ | |
1747 | ||
1748 | static SecCertificateRef /* O - Certificate */ | |
1749 | http_cdsa_create_credential( | |
1750 | http_credential_t *credential) /* I - Credential */ | |
1751 | { | |
1752 | if (!credential) | |
1753 | return (NULL); | |
1754 | ||
1755 | return (SecCertificateCreateWithBytes(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen)); | |
1756 | } | |
1757 | ||
1758 | ||
fc4bbb58 | 1759 | #ifdef HAVE_SECKEYCHAINOPEN |
005f7f1f MS |
1760 | /* |
1761 | * 'http_cdsa_default_path()' - Get the default keychain path. | |
1762 | */ | |
1763 | ||
1764 | static const char * /* O - Keychain path */ | |
1765 | http_cdsa_default_path(char *buffer, /* I - Path buffer */ | |
1766 | size_t bufsize) /* I - Size of buffer */ | |
1767 | { | |
1768 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
1769 | ||
1770 | ||
1771 | if (getuid() && home) | |
1772 | snprintf(buffer, bufsize, "%s/Library/Keychains/login.keychain", home); | |
1773 | else | |
1774 | strlcpy(buffer, "/Library/Keychains/System.keychain", bufsize); | |
1775 | ||
1776 | DEBUG_printf(("1http_cdsa_default_path: Using default path \"%s\".", buffer)); | |
1777 | ||
1778 | return (buffer); | |
1779 | } | |
fc4bbb58 | 1780 | #endif /* HAVE_SECKEYCHAINOPEN */ |
005f7f1f MS |
1781 | |
1782 | ||
2c85b752 | 1783 | /* |
88f1e9c8 | 1784 | * 'http_cdsa_read()' - Read function for the CDSA library. |
2c85b752 MS |
1785 | */ |
1786 | ||
88f1e9c8 MS |
1787 | static OSStatus /* O - -1 on error, 0 on success */ |
1788 | http_cdsa_read( | |
1789 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1790 | void *data, /* I - Data buffer */ | |
1791 | size_t *dataLength) /* IO - Number of bytes */ | |
2c85b752 | 1792 | { |
88f1e9c8 MS |
1793 | OSStatus result; /* Return value */ |
1794 | ssize_t bytes; /* Number of bytes read */ | |
1795 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1796 | |
2c85b752 | 1797 | |
88f1e9c8 | 1798 | http = (http_t *)connection; |
2c85b752 | 1799 | |
88f1e9c8 | 1800 | if (!http->blocking) |
2c85b752 MS |
1801 | { |
1802 | /* | |
88f1e9c8 | 1803 | * Make sure we have data before we read... |
2c85b752 MS |
1804 | */ |
1805 | ||
88f1e9c8 MS |
1806 | while (!_httpWait(http, http->wait_value, 0)) |
1807 | { | |
1808 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1809 | continue; | |
1810 | ||
1811 | http->error = ETIMEDOUT; | |
1812 | return (-1); | |
1813 | } | |
2c85b752 MS |
1814 | } |
1815 | ||
88f1e9c8 | 1816 | do |
2c85b752 | 1817 | { |
88f1e9c8 | 1818 | bytes = recv(http->fd, data, *dataLength, 0); |
2c85b752 | 1819 | } |
88f1e9c8 | 1820 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
2c85b752 | 1821 | |
88f1e9c8 MS |
1822 | if ((size_t)bytes == *dataLength) |
1823 | { | |
1824 | result = 0; | |
1825 | } | |
1826 | else if (bytes > 0) | |
1827 | { | |
1828 | *dataLength = (size_t)bytes; | |
1829 | result = errSSLWouldBlock; | |
1830 | } | |
1831 | else | |
1832 | { | |
1833 | *dataLength = 0; | |
2c85b752 | 1834 | |
88f1e9c8 MS |
1835 | if (bytes == 0) |
1836 | result = errSSLClosedGraceful; | |
1837 | else if (errno == EAGAIN) | |
1838 | result = errSSLWouldBlock; | |
1839 | else | |
1840 | result = errSSLClosedAbort; | |
1841 | } | |
2c85b752 | 1842 | |
88f1e9c8 MS |
1843 | return (result); |
1844 | } | |
2c85b752 | 1845 | |
2c85b752 | 1846 | |
88f1e9c8 MS |
1847 | /* |
1848 | * 'http_cdsa_set_credentials()' - Set the TLS credentials. | |
1849 | */ | |
2c85b752 | 1850 | |
88f1e9c8 MS |
1851 | static int /* O - Status of connection */ |
1852 | http_cdsa_set_credentials(http_t *http) /* I - HTTP connection */ | |
1853 | { | |
1854 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
1855 | OSStatus error = 0; /* Error code */ | |
1856 | http_tls_credentials_t credentials = NULL; | |
1857 | /* TLS credentials */ | |
2c85b752 | 1858 | |
2c85b752 | 1859 | |
807315e6 | 1860 | DEBUG_printf(("7http_tls_set_credentials(%p)", (void *)http)); |
2c85b752 | 1861 | |
88f1e9c8 MS |
1862 | /* |
1863 | * Prefer connection specific credentials... | |
1864 | */ | |
2c85b752 | 1865 | |
88f1e9c8 MS |
1866 | if ((credentials = http->tls_credentials) == NULL) |
1867 | credentials = cg->tls_credentials; | |
2c85b752 | 1868 | |
88f1e9c8 MS |
1869 | if (credentials) |
1870 | { | |
1871 | error = SSLSetCertificate(http->tls, credentials); | |
1872 | DEBUG_printf(("4http_tls_set_credentials: SSLSetCertificate, error=%d", | |
1873 | (int)error)); | |
2c85b752 | 1874 | } |
88f1e9c8 MS |
1875 | else |
1876 | DEBUG_puts("4http_tls_set_credentials: No credentials to set."); | |
1877 | ||
1878 | return (error); | |
1879 | } | |
1880 | ||
1881 | ||
1882 | /* | |
1883 | * 'http_cdsa_write()' - Write function for the CDSA library. | |
1884 | */ | |
1885 | ||
1886 | static OSStatus /* O - -1 on error, 0 on success */ | |
1887 | http_cdsa_write( | |
1888 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1889 | const void *data, /* I - Data buffer */ | |
1890 | size_t *dataLength) /* IO - Number of bytes */ | |
1891 | { | |
1892 | OSStatus result; /* Return value */ | |
1893 | ssize_t bytes; /* Number of bytes read */ | |
1894 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1895 | |
2c85b752 | 1896 | |
88f1e9c8 MS |
1897 | http = (http_t *)connection; |
1898 | ||
1899 | do | |
2c85b752 | 1900 | { |
88f1e9c8 MS |
1901 | bytes = write(http->fd, data, *dataLength); |
1902 | } | |
1903 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); | |
1904 | ||
1905 | if ((size_t)bytes == *dataLength) | |
1906 | { | |
1907 | result = 0; | |
1908 | } | |
1909 | else if (bytes >= 0) | |
1910 | { | |
1911 | *dataLength = (size_t)bytes; | |
1912 | result = errSSLWouldBlock; | |
2c85b752 MS |
1913 | } |
1914 | else | |
88f1e9c8 MS |
1915 | { |
1916 | *dataLength = 0; | |
2c85b752 | 1917 | |
88f1e9c8 MS |
1918 | if (errno == EAGAIN) |
1919 | result = errSSLWouldBlock; | |
1920 | else | |
1921 | result = errSSLClosedAbort; | |
1922 | } | |
1923 | ||
1924 | return (result); | |
2c85b752 | 1925 | } |