]>
Commit | Line | Data |
---|---|---|
2c85b752 | 1 | /* |
8072030b | 2 | * TLS support code for CUPS on macOS. |
2c85b752 | 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 | |
57b7b66b | 11 | * missing or damaged, see the license at "http://www.cups.org/". |
2c85b752 MS |
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 | ||
4daf7e97 MS |
27 | /* |
28 | * Constants, very secure stuff... | |
29 | */ | |
30 | ||
31 | #define _CUPS_CDSA_PASSWORD "42" /* CUPS keychain password */ | |
32 | #define _CUPS_CDSA_PASSLEN 2 /* Length of keychain password */ | |
33 | ||
34 | ||
c0459938 MS |
35 | /* |
36 | * Local globals... | |
37 | */ | |
38 | ||
c0459938 MS |
39 | static int tls_auto_create = 0; |
40 | /* Auto-create self-signed certs? */ | |
41 | static char *tls_common_name = NULL; | |
42 | /* Default common name */ | |
fc4bbb58 | 43 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c MS |
44 | static SecKeychainRef tls_keychain = NULL; |
45 | /* Server cert keychain */ | |
2274d26b MS |
46 | #else |
47 | static SecIdentityRef tls_selfsigned = NULL; | |
48 | /* Temporary self-signed cert */ | |
fc4bbb58 | 49 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c MS |
50 | static char *tls_keypath = NULL; |
51 | /* Server cert keychain path */ | |
52 | static _cups_mutex_t tls_mutex = _CUPS_MUTEX_INITIALIZER; | |
53 | /* Mutex for keychain/certs */ | |
4492316e | 54 | static int tls_options = -1;/* Options for TLS connections */ |
c0459938 MS |
55 | |
56 | ||
dafebafd MS |
57 | /* |
58 | * Local functions... | |
59 | */ | |
2c85b752 | 60 | |
41e0907c | 61 | static CFArrayRef http_cdsa_copy_server(const char *common_name); |
2ece34a9 | 62 | static SecCertificateRef http_cdsa_create_credential(http_credential_t *credential); |
fc4bbb58 | 63 | #ifdef HAVE_SECKEYCHAINOPEN |
005f7f1f | 64 | static const char *http_cdsa_default_path(char *buffer, size_t bufsize); |
4daf7e97 MS |
65 | static SecKeychainRef http_cdsa_open_keychain(const char *path, char *filename, size_t filesize); |
66 | static SecKeychainRef http_cdsa_open_system_keychain(void); | |
fc4bbb58 | 67 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c | 68 | static OSStatus http_cdsa_read(SSLConnectionRef connection, void *data, size_t *dataLength); |
88f1e9c8 | 69 | static int http_cdsa_set_credentials(http_t *http); |
41e0907c | 70 | static OSStatus http_cdsa_write(SSLConnectionRef connection, const void *data, size_t *dataLength); |
2c85b752 MS |
71 | |
72 | ||
3af9ac9e MS |
73 | /* |
74 | * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair. | |
75 | * | |
e1f19878 | 76 | * @since CUPS 2.0/OS 10.10@ |
3af9ac9e MS |
77 | */ |
78 | ||
79 | int /* O - 1 on success, 0 on failure */ | |
80 | cupsMakeServerCredentials( | |
f93b32b6 | 81 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
82 | const char *common_name, /* I - Common name */ |
83 | int num_alt_names, /* I - Number of subject alternate names */ | |
84 | const char **alt_names, /* I - Subject Alternate Names */ | |
85 | time_t expiration_date) /* I - Expiration date */ | |
86 | { | |
fc4bbb58 | 87 | #if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE) |
41e0907c MS |
88 | int status = 0; /* Return status */ |
89 | OSStatus err; /* Error code (if any) */ | |
90 | CFStringRef cfcommon_name = NULL; | |
91 | /* CF string for server name */ | |
92 | SecIdentityRef ident = NULL; /* Identity */ | |
93 | SecKeyRef publicKey = NULL, | |
94 | /* Public key */ | |
95 | privateKey = NULL; | |
96 | /* Private key */ | |
558883c6 | 97 | SecCertificateRef cert = NULL; /* Self-signed certificate */ |
41e0907c MS |
98 | CFMutableDictionaryRef keyParams = NULL; |
99 | /* Key generation parameters */ | |
100 | ||
101 | ||
172bdf5d MS |
102 | 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)); |
103 | ||
fc4bbb58 | 104 | (void)path; |
3af9ac9e MS |
105 | (void)num_alt_names; |
106 | (void)alt_names; | |
107 | (void)expiration_date; | |
108 | ||
fc4bbb58 MS |
109 | if (path) |
110 | { | |
111 | DEBUG_puts("1cupsMakeServerCredentials: No keychain support compiled in, returning 0."); | |
112 | return (0); | |
113 | } | |
f93b32b6 | 114 | |
2274d26b MS |
115 | if (tls_selfsigned) |
116 | { | |
117 | DEBUG_puts("1cupsMakeServerCredentials: Using existing self-signed cert."); | |
118 | return (1); | |
119 | } | |
120 | ||
f93b32b6 | 121 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
41e0907c | 122 | if (!cfcommon_name) |
2274d26b MS |
123 | { |
124 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create CF string of common name."); | |
41e0907c | 125 | goto cleanup; |
2274d26b | 126 | } |
41e0907c MS |
127 | |
128 | /* | |
129 | * Create a public/private key pair... | |
130 | */ | |
131 | ||
f93b32b6 | 132 | keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); |
41e0907c | 133 | if (!keyParams) |
2274d26b MS |
134 | { |
135 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create key parameters dictionary."); | |
41e0907c | 136 | goto cleanup; |
2274d26b | 137 | } |
41e0907c | 138 | |
1a7059a0 | 139 | CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeRSA); |
41e0907c | 140 | CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048")); |
2274d26b | 141 | CFDictionaryAddValue(keyParams, kSecAttrLabel, cfcommon_name); |
41e0907c MS |
142 | |
143 | err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey); | |
144 | if (err != noErr) | |
2274d26b MS |
145 | { |
146 | DEBUG_printf(("1cupsMakeServerCredentials: Unable to generate key pair: %d.", (int)err)); | |
41e0907c | 147 | goto cleanup; |
2274d26b | 148 | } |
41e0907c MS |
149 | |
150 | /* | |
151 | * Create a self-signed certificate using the public/private key pair... | |
152 | */ | |
153 | ||
154 | CFIndex usageInt = kSecKeyUsageAll; | |
558883c6 MS |
155 | CFNumberRef usage = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &usageInt); |
156 | CFIndex lenInt = 0; | |
157 | CFNumberRef len = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &lenInt); | |
fc4bbb58 MS |
158 | CFTypeRef certKeys[] = { kSecCSRBasicContraintsPathLen, kSecSubjectAltName, kSecCertificateKeyUsage }; |
159 | CFTypeRef certValues[] = { len, cfcommon_name, usage }; | |
160 | CFDictionaryRef certParams = CFDictionaryCreate(kCFAllocatorDefault, certKeys, certValues, sizeof(certKeys) / sizeof(certKeys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); | |
41e0907c | 161 | CFRelease(usage); |
558883c6 | 162 | CFRelease(len); |
41e0907c MS |
163 | |
164 | const void *ca_o[] = { kSecOidOrganization, CFSTR("") }; | |
165 | const void *ca_cn[] = { kSecOidCommonName, cfcommon_name }; | |
166 | CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL); | |
167 | CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL); | |
168 | const void *ca_dn_array[2]; | |
169 | ||
170 | ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL); | |
171 | ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL); | |
172 | ||
173 | CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL); | |
fc4bbb58 | 174 | |
558883c6 | 175 | cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey); |
fc4bbb58 | 176 | |
41e0907c MS |
177 | CFRelease(subject); |
178 | CFRelease(certParams); | |
179 | ||
180 | if (!cert) | |
2274d26b MS |
181 | { |
182 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create self-signed certificate."); | |
41e0907c | 183 | goto cleanup; |
2274d26b | 184 | } |
41e0907c MS |
185 | |
186 | ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey); | |
187 | ||
188 | if (ident) | |
fc4bbb58 | 189 | { |
2274d26b MS |
190 | _cupsMutexLock(&tls_mutex); |
191 | ||
192 | if (tls_selfsigned) | |
193 | CFRelease(ident); | |
194 | else | |
195 | tls_selfsigned = ident; | |
196 | ||
197 | _cupsMutexLock(&tls_mutex); | |
198 | ||
199 | # if 0 /* Someday perhaps SecItemCopyMatching will work for identities, at which point */ | |
fc4bbb58 MS |
200 | CFTypeRef itemKeys[] = { kSecClass, kSecAttrLabel, kSecValueRef }; |
201 | CFTypeRef itemValues[] = { kSecClassIdentity, cfcommon_name, ident }; | |
202 | CFDictionaryRef itemAttrs = CFDictionaryCreate(kCFAllocatorDefault, itemKeys, itemValues, sizeof(itemKeys) / sizeof(itemKeys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); | |
203 | ||
204 | err = SecItemAdd(itemAttrs, NULL); | |
e34d1ec4 | 205 | /* SecItemAdd consumes itemAttrs... */ |
fc4bbb58 | 206 | |
2274d26b MS |
207 | CFRelease(ident); |
208 | ||
fc4bbb58 | 209 | if (err != noErr) |
2274d26b MS |
210 | { |
211 | DEBUG_printf(("1cupsMakeServerCredentials: Unable to add identity to keychain: %d.", (int)err)); | |
fc4bbb58 | 212 | goto cleanup; |
2274d26b MS |
213 | } |
214 | # endif /* 0 */ | |
fc4bbb58 | 215 | |
41e0907c | 216 | status = 1; |
fc4bbb58 | 217 | } |
2274d26b MS |
218 | else |
219 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create identity from cert and keys."); | |
41e0907c MS |
220 | |
221 | /* | |
222 | * Cleanup and return... | |
223 | */ | |
224 | ||
225 | cleanup: | |
226 | ||
227 | if (cfcommon_name) | |
228 | CFRelease(cfcommon_name); | |
229 | ||
230 | if (keyParams) | |
231 | CFRelease(keyParams); | |
232 | ||
41e0907c MS |
233 | if (cert) |
234 | CFRelease(cert); | |
235 | ||
236 | if (publicKey) | |
237 | CFRelease(publicKey); | |
238 | ||
239 | if (privateKey) | |
2274d26b MS |
240 | CFRelease(privateKey); |
241 | ||
242 | DEBUG_printf(("1cupsMakeServerCredentials: Returning %d.", status)); | |
41e0907c MS |
243 | |
244 | return (status); | |
245 | ||
fc4bbb58 | 246 | #else /* !HAVE_SECGENERATESELFSIGNEDCERTIFICATE */ |
41e0907c | 247 | int pid, /* Process ID of command */ |
7d58a105 MS |
248 | status, /* Status of command */ |
249 | i; /* Looping var */ | |
41e0907c | 250 | char command[1024], /* Command */ |
724f2615 | 251 | *argv[5], /* Command-line arguments */ |
7d58a105 MS |
252 | *envp[1000], /* Environment variables */ |
253 | days[32], /* CERTTOOL_EXPIRATION_DAYS env var */ | |
41e0907c | 254 | keychain[1024], /* Keychain argument */ |
f93b32b6 MS |
255 | infofile[1024], /* Type-in information for cert */ |
256 | filename[1024]; /* Default keychain path */ | |
41e0907c MS |
257 | cups_file_t *fp; /* Seed/info file */ |
258 | ||
259 | ||
807315e6 | 260 | 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 | 261 | |
41e0907c MS |
262 | (void)num_alt_names; |
263 | (void)alt_names; | |
41e0907c | 264 | |
f93b32b6 | 265 | if (!path) |
005f7f1f | 266 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 267 | |
41e0907c MS |
268 | /* |
269 | * Run the "certtool" command to generate a self-signed certificate... | |
270 | */ | |
271 | ||
272 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
273 | return (-1); | |
274 | ||
275 | /* | |
276 | * Create a file with the certificate information fields... | |
277 | * | |
278 | * Note: This assumes that the default questions are asked by the certtool | |
279 | * command... | |
280 | */ | |
281 | ||
282 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
283 | return (-1); | |
284 | ||
285 | cupsFilePrintf(fp, | |
286 | "CUPS Self-Signed Certificate\n" | |
287 | /* Enter key and certificate label */ | |
724f2615 | 288 | "r\n" /* Generate RSA key pair */ |
1ae693e3 | 289 | "2048\n" /* 2048 bit encryption key */ |
41e0907c MS |
290 | "y\n" /* OK (y = yes) */ |
291 | "b\n" /* Usage (b=signing/encryption) */ | |
1ae693e3 | 292 | "2\n" /* Sign with SHA256 */ |
41e0907c MS |
293 | "y\n" /* OK (y = yes) */ |
294 | "%s\n" /* Common name */ | |
295 | "\n" /* Country (default) */ | |
296 | "\n" /* Organization (default) */ | |
297 | "\n" /* Organizational unit (default) */ | |
298 | "\n" /* State/Province (default) */ | |
299 | "\n" /* Email address */ | |
300 | "y\n", /* OK (y = yes) */ | |
301 | common_name); | |
302 | cupsFileClose(fp); | |
303 | ||
304 | snprintf(keychain, sizeof(keychain), "k=%s", path); | |
305 | ||
306 | argv[0] = "certtool"; | |
307 | argv[1] = "c"; | |
308 | argv[2] = keychain; | |
309 | argv[3] = NULL; | |
310 | ||
7d58a105 MS |
311 | snprintf(days, sizeof(days), "CERTTOOL_EXPIRATION_DAYS=%d", (int)((expiration_date - time(NULL) + 86399) / 86400)); |
312 | envp[0] = days; | |
313 | for (i = 0; i < (int)(sizeof(envp) / sizeof(envp[0]) - 2) && environ[i]; i ++) | |
314 | envp[i + 1] = environ[i]; | |
315 | envp[i] = NULL; | |
316 | ||
41e0907c MS |
317 | posix_spawn_file_actions_t actions; /* File actions */ |
318 | ||
319 | posix_spawn_file_actions_init(&actions); | |
320 | posix_spawn_file_actions_addclose(&actions, 0); | |
321 | posix_spawn_file_actions_addopen(&actions, 0, infofile, O_RDONLY, 0); | |
f93b32b6 MS |
322 | posix_spawn_file_actions_addclose(&actions, 1); |
323 | posix_spawn_file_actions_addopen(&actions, 1, "/dev/null", O_WRONLY, 0); | |
324 | posix_spawn_file_actions_addclose(&actions, 2); | |
325 | posix_spawn_file_actions_addopen(&actions, 2, "/dev/null", O_WRONLY, 0); | |
41e0907c | 326 | |
7d58a105 | 327 | if (posix_spawn(&pid, command, &actions, NULL, argv, envp)) |
41e0907c MS |
328 | { |
329 | unlink(infofile); | |
330 | return (-1); | |
331 | } | |
332 | ||
333 | posix_spawn_file_actions_destroy(&actions); | |
334 | ||
335 | unlink(infofile); | |
336 | ||
337 | while (waitpid(pid, &status, 0) < 0) | |
338 | if (errno != EINTR) | |
339 | { | |
340 | status = -1; | |
341 | break; | |
342 | } | |
343 | ||
344 | return (!status); | |
eb66bc71 | 345 | #endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
346 | } |
347 | ||
348 | ||
349 | /* | |
350 | * 'cupsSetServerCredentials()' - Set the default server credentials. | |
351 | * | |
352 | * Note: The server credentials are used by all threads in the running process. | |
353 | * This function is threadsafe. | |
354 | * | |
8072030b | 355 | * @since CUPS 2.0/macOS 10.10@ |
3af9ac9e MS |
356 | */ |
357 | ||
358 | int /* O - 1 on success, 0 on failure */ | |
359 | cupsSetServerCredentials( | |
f93b32b6 | 360 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
361 | const char *common_name, /* I - Default common name for server */ |
362 | int auto_create) /* I - 1 = automatically create self-signed certificates */ | |
363 | { | |
a27a134a MS |
364 | DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create)); |
365 | ||
eb66bc71 | 366 | #ifdef HAVE_SECKEYCHAINOPEN |
4daf7e97 MS |
367 | char filename[1024]; /* Keychain filename */ |
368 | SecKeychainRef keychain = http_cdsa_open_keychain(path, filename, sizeof(filename)); | |
c0459938 | 369 | |
4daf7e97 | 370 | if (!keychain) |
c0459938 | 371 | { |
4daf7e97 | 372 | DEBUG_puts("1cupsSetServerCredentials: Unable to open keychain."); |
c0459938 MS |
373 | return (0); |
374 | } | |
375 | ||
376 | _cupsMutexLock(&tls_mutex); | |
377 | ||
378 | /* | |
379 | * Close any keychain that is currently open... | |
380 | */ | |
381 | ||
382 | if (tls_keychain) | |
383 | CFRelease(tls_keychain); | |
384 | ||
41e0907c MS |
385 | if (tls_keypath) |
386 | _cupsStrFree(tls_keypath); | |
387 | ||
c0459938 MS |
388 | if (tls_common_name) |
389 | _cupsStrFree(tls_common_name); | |
390 | ||
391 | /* | |
392 | * Save the new keychain... | |
393 | */ | |
394 | ||
395 | tls_keychain = keychain; | |
4daf7e97 | 396 | tls_keypath = _cupsStrAlloc(filename); |
c0459938 MS |
397 | tls_auto_create = auto_create; |
398 | tls_common_name = _cupsStrAlloc(common_name); | |
399 | ||
400 | _cupsMutexUnlock(&tls_mutex); | |
401 | ||
a27a134a | 402 | DEBUG_puts("1cupsSetServerCredentials: Opened keychain, returning 1."); |
c0459938 | 403 | return (1); |
eb66bc71 MS |
404 | |
405 | #else | |
fc4bbb58 MS |
406 | if (path) |
407 | { | |
408 | DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0."); | |
409 | return (0); | |
410 | } | |
411 | ||
412 | tls_auto_create = auto_create; | |
413 | tls_common_name = _cupsStrAlloc(common_name); | |
414 | ||
415 | return (1); | |
eb66bc71 | 416 | #endif /* HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
417 | } |
418 | ||
2c85b752 MS |
419 | |
420 | /* | |
421 | * 'httpCopyCredentials()' - Copy the credentials associated with the peer in | |
422 | * an encrypted connection. | |
423 | * | |
8072030b | 424 | * @since CUPS 1.5/macOS 10.7@ |
2c85b752 MS |
425 | */ |
426 | ||
427 | int /* O - Status of call (0 = success) */ | |
428 | httpCopyCredentials( | |
429 | http_t *http, /* I - Connection to server */ | |
430 | cups_array_t **credentials) /* O - Array of credentials */ | |
431 | { | |
432 | OSStatus error; /* Error code */ | |
433 | SecTrustRef peerTrust; /* Peer trust reference */ | |
434 | CFIndex count; /* Number of credentials */ | |
435 | SecCertificateRef secCert; /* Certificate reference */ | |
436 | CFDataRef data; /* Certificate data */ | |
437 | int i; /* Looping var */ | |
438 | ||
439 | ||
807315e6 | 440 | DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", (void *)http, (void *)credentials)); |
376d7c69 | 441 | |
2c85b752 MS |
442 | if (credentials) |
443 | *credentials = NULL; | |
444 | ||
445 | if (!http || !http->tls || !credentials) | |
446 | return (-1); | |
447 | ||
448 | if (!(error = SSLCopyPeerTrust(http->tls, &peerTrust)) && peerTrust) | |
449 | { | |
376d7c69 MS |
450 | DEBUG_printf(("2httpCopyCredentials: Peer provided %d certificates.", (int)SecTrustGetCertificateCount(peerTrust))); |
451 | ||
2c85b752 MS |
452 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) |
453 | { | |
454 | count = SecTrustGetCertificateCount(peerTrust); | |
455 | ||
456 | for (i = 0; i < count; i ++) | |
457 | { | |
458 | secCert = SecTrustGetCertificateAtIndex(peerTrust, i); | |
376d7c69 MS |
459 | |
460 | #ifdef DEBUG | |
461 | CFStringRef cf_name = SecCertificateCopySubjectSummary(secCert); | |
462 | char name[1024]; | |
463 | if (cf_name) | |
464 | CFStringGetCString(cf_name, name, sizeof(name), kCFStringEncodingUTF8); | |
465 | else | |
466 | strlcpy(name, "unknown", sizeof(name)); | |
467 | ||
468 | DEBUG_printf(("2httpCopyCredentials: Certificate %d name is \"%s\".", i, name)); | |
469 | #endif /* DEBUG */ | |
470 | ||
88f1e9c8 | 471 | if ((data = SecCertificateCopyData(secCert)) != NULL) |
2c85b752 | 472 | { |
376d7c69 MS |
473 | DEBUG_printf(("2httpCopyCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); |
474 | ||
7e86f2f6 | 475 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); |
2c85b752 MS |
476 | CFRelease(data); |
477 | } | |
478 | } | |
479 | } | |
480 | ||
481 | CFRelease(peerTrust); | |
482 | } | |
483 | ||
484 | return (error); | |
485 | } | |
486 | ||
487 | ||
488 | /* | |
489 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
490 | */ | |
491 | ||
492 | http_tls_credentials_t /* O - Internal credentials */ | |
493 | _httpCreateCredentials( | |
494 | cups_array_t *credentials) /* I - Array of credentials */ | |
495 | { | |
496 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
497 | SecCertificateRef secCert; /* Certificate reference */ | |
2c85b752 MS |
498 | http_credential_t *credential; /* Credential data */ |
499 | ||
500 | ||
501 | if (!credentials) | |
502 | return (NULL); | |
503 | ||
504 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
505 | cupsArrayCount(credentials), | |
506 | &kCFTypeArrayCallBacks)) == NULL) | |
507 | return (NULL); | |
508 | ||
509 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
510 | credential; | |
511 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
512 | { | |
9653cfdf | 513 | if ((secCert = http_cdsa_create_credential(credential)) != NULL) |
2c85b752 | 514 | { |
9653cfdf MS |
515 | CFArrayAppendValue(peerCerts, secCert); |
516 | CFRelease(secCert); | |
2c85b752 MS |
517 | } |
518 | } | |
519 | ||
520 | return (peerCerts); | |
521 | } | |
522 | ||
523 | ||
3af9ac9e | 524 | /* |
524c65e6 | 525 | * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name. |
3af9ac9e | 526 | * |
8072030b | 527 | * @since CUPS 2.0/macOS 10.10@ |
3af9ac9e MS |
528 | */ |
529 | ||
524c65e6 MS |
530 | int /* O - 1 if valid, 0 otherwise */ |
531 | httpCredentialsAreValidForName( | |
532 | cups_array_t *credentials, /* I - Credentials */ | |
533 | const char *common_name) /* I - Name to check */ | |
534 | { | |
535 | SecCertificateRef secCert; /* Certificate reference */ | |
536 | CFStringRef cfcert_name = NULL; | |
537 | /* Certificate's common name (CF string) */ | |
538 | char cert_name[256]; /* Certificate's common name (C string) */ | |
539 | int valid = 1; /* Valid name? */ | |
540 | ||
541 | ||
542 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
543 | return (0); | |
544 | ||
545 | /* | |
546 | * Compare the common names... | |
547 | */ | |
548 | ||
549 | if ((cfcert_name = SecCertificateCopySubjectSummary(secCert)) == NULL) | |
550 | { | |
551 | /* | |
552 | * Can't get common name, cannot be valid... | |
553 | */ | |
554 | ||
555 | valid = 0; | |
556 | } | |
557 | else if (CFStringGetCString(cfcert_name, cert_name, sizeof(cert_name), kCFStringEncodingUTF8) && | |
558 | _cups_strcasecmp(common_name, cert_name)) | |
559 | { | |
560 | /* | |
561 | * Not an exact match for the common name, check for wildcard certs... | |
562 | */ | |
563 | ||
564 | const char *domain = strchr(common_name, '.'); | |
565 | /* Domain in common name */ | |
566 | ||
567 | if (strncmp(cert_name, "*.", 2) || !domain || _cups_strcasecmp(domain, cert_name + 1)) | |
568 | { | |
569 | /* | |
570 | * Not a wildcard match. | |
571 | */ | |
572 | ||
573 | /* TODO: Check subject alternate names */ | |
574 | valid = 0; | |
575 | } | |
576 | } | |
577 | ||
578 | if (cfcert_name) | |
579 | CFRelease(cfcert_name); | |
580 | ||
581 | CFRelease(secCert); | |
582 | ||
583 | return (valid); | |
584 | } | |
585 | ||
586 | ||
587 | /* | |
588 | * 'httpCredentialsGetTrust()' - Return the trust of credentials. | |
589 | * | |
8072030b | 590 | * @since CUPS 2.0/macOS 10.10@ |
524c65e6 MS |
591 | */ |
592 | ||
593 | http_trust_t /* O - Level of trust */ | |
594 | httpCredentialsGetTrust( | |
376d7c69 MS |
595 | cups_array_t *credentials, /* I - Credentials */ |
596 | const char *common_name) /* I - Common name for trust lookup */ | |
3af9ac9e | 597 | { |
9653cfdf | 598 | SecCertificateRef secCert; /* Certificate reference */ |
524c65e6 MS |
599 | http_trust_t trust = HTTP_TRUST_OK; |
600 | /* Trusted? */ | |
376d7c69 | 601 | cups_array_t *tcreds = NULL; /* Trusted credentials */ |
9653cfdf MS |
602 | _cups_globals_t *cg = _cupsGlobals(); |
603 | /* Per-thread globals */ | |
3af9ac9e | 604 | |
9653cfdf | 605 | |
376d7c69 | 606 | if (!common_name) |
7aeb3615 MS |
607 | { |
608 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No common name specified."), 1); | |
524c65e6 | 609 | return (HTTP_TRUST_UNKNOWN); |
7aeb3615 | 610 | } |
376d7c69 | 611 | |
9653cfdf | 612 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
7aeb3615 MS |
613 | { |
614 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create credentials from array."), 1); | |
524c65e6 | 615 | return (HTTP_TRUST_UNKNOWN); |
7aeb3615 | 616 | } |
9653cfdf | 617 | |
3abb875b MS |
618 | if (cg->any_root < 0) |
619 | _cupsSetDefaults(); | |
620 | ||
376d7c69 | 621 | /* |
88f1e9c8 | 622 | * Look this common name up in the default keychains... |
376d7c69 MS |
623 | */ |
624 | ||
88f1e9c8 | 625 | httpLoadCredentials(NULL, &tcreds, common_name); |
376d7c69 MS |
626 | |
627 | if (tcreds) | |
628 | { | |
629 | char credentials_str[1024], /* String for incoming credentials */ | |
630 | tcreds_str[1024]; /* String for saved credentials */ | |
631 | ||
632 | httpCredentialsString(credentials, credentials_str, sizeof(credentials_str)); | |
633 | httpCredentialsString(tcreds, tcreds_str, sizeof(tcreds_str)); | |
634 | ||
635 | if (strcmp(credentials_str, tcreds_str)) | |
636 | { | |
637 | /* | |
638 | * Credentials don't match, let's look at the expiration date of the new | |
639 | * credentials and allow if the new ones have a later expiration... | |
640 | */ | |
641 | ||
08d56b1f MS |
642 | if (!cg->trust_first) |
643 | { | |
644 | /* | |
645 | * Do not trust certificates on first use... | |
646 | */ | |
647 | ||
7aeb3615 MS |
648 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Trust on first use is disabled."), 1); |
649 | ||
08d56b1f MS |
650 | trust = HTTP_TRUST_INVALID; |
651 | } | |
7aeb3615 | 652 | else if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds)) |
376d7c69 MS |
653 | { |
654 | /* | |
7aeb3615 | 655 | * The new credentials are not newly issued... |
376d7c69 MS |
656 | */ |
657 | ||
7aeb3615 MS |
658 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("New credentials are older than stored credentials."), 1); |
659 | ||
660 | trust = HTTP_TRUST_INVALID; | |
661 | } | |
662 | else if (!httpCredentialsAreValidForName(credentials, common_name)) | |
663 | { | |
664 | /* | |
665 | * The common name does not match the issued certificate... | |
666 | */ | |
667 | ||
668 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("New credentials are not valid for name."), 1); | |
669 | ||
524c65e6 | 670 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 671 | } |
524c65e6 | 672 | else if (httpCredentialsGetExpiration(tcreds) < time(NULL)) |
376d7c69 MS |
673 | { |
674 | /* | |
524c65e6 | 675 | * Save the renewed credentials... |
376d7c69 MS |
676 | */ |
677 | ||
524c65e6 MS |
678 | trust = HTTP_TRUST_RENEWED; |
679 | ||
680 | httpSaveCredentials(NULL, credentials, common_name); | |
376d7c69 MS |
681 | } |
682 | } | |
683 | ||
684 | httpFreeCredentials(tcreds); | |
685 | } | |
f51f3773 | 686 | else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name)) |
7aeb3615 MS |
687 | { |
688 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No stored credentials, not valid for name."), 1); | |
524c65e6 | 689 | trust = HTTP_TRUST_INVALID; |
7aeb3615 MS |
690 | } |
691 | else if (!cg->trust_first) | |
692 | { | |
f8e19681 MS |
693 | /* |
694 | * See if we have a site CA certificate we can compare... | |
695 | */ | |
696 | ||
697 | if (!httpLoadCredentials(NULL, &tcreds, "site")) | |
698 | { | |
699 | if (cupsArrayCount(credentials) != (cupsArrayCount(tcreds) + 1)) | |
700 | { | |
701 | /* | |
702 | * Certificate isn't directly generated from the CA cert... | |
703 | */ | |
704 | ||
705 | trust = HTTP_TRUST_INVALID; | |
706 | } | |
707 | else | |
708 | { | |
709 | /* | |
710 | * Do a tail comparison of the two certificates... | |
711 | */ | |
712 | ||
713 | http_credential_t *a, *b; /* Certificates */ | |
714 | ||
715 | for (a = (http_credential_t *)cupsArrayFirst(tcreds), b = (http_credential_t *)cupsArrayIndex(credentials, 1); | |
716 | a && b; | |
717 | a = (http_credential_t *)cupsArrayNext(tcreds), b = (http_credential_t *)cupsArrayNext(credentials)) | |
718 | if (a->datalen != b->datalen || memcmp(a->data, b->data, a->datalen)) | |
719 | break; | |
720 | ||
721 | if (a || b) | |
722 | trust = HTTP_TRUST_INVALID; | |
723 | } | |
724 | ||
725 | if (trust != HTTP_TRUST_OK) | |
726 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Credentials do not validate against site CA certificate."), 1); | |
727 | } | |
728 | else | |
729 | { | |
730 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Trust on first use is disabled."), 1); | |
731 | trust = HTTP_TRUST_INVALID; | |
732 | } | |
7aeb3615 | 733 | } |
376d7c69 | 734 | |
7aeb3615 MS |
735 | if (trust == HTTP_TRUST_OK && !cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent())) |
736 | { | |
737 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Credentials have expired."), 1); | |
524c65e6 | 738 | trust = HTTP_TRUST_EXPIRED; |
7aeb3615 MS |
739 | } |
740 | ||
741 | if (trust == HTTP_TRUST_OK && !cg->any_root && cupsArrayCount(credentials) == 1) | |
742 | { | |
743 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Self-signed credentials are blocked."), 1); | |
08d56b1f | 744 | trust = HTTP_TRUST_INVALID; |
7aeb3615 | 745 | } |
376d7c69 | 746 | |
9653cfdf MS |
747 | CFRelease(secCert); |
748 | ||
524c65e6 | 749 | return (trust); |
3af9ac9e MS |
750 | } |
751 | ||
752 | ||
753 | /* | |
754 | * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials. | |
755 | * | |
8072030b | 756 | * @since CUPS 2.0/macOS 10.10@ |
3af9ac9e MS |
757 | */ |
758 | ||
759 | time_t /* O - Expiration date of credentials */ | |
760 | httpCredentialsGetExpiration( | |
761 | cups_array_t *credentials) /* I - Credentials */ | |
762 | { | |
9653cfdf MS |
763 | SecCertificateRef secCert; /* Certificate reference */ |
764 | time_t expiration; /* Expiration date */ | |
3af9ac9e | 765 | |
9653cfdf MS |
766 | |
767 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
768 | return (0); | |
769 | ||
376d7c69 | 770 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); |
9653cfdf MS |
771 | |
772 | CFRelease(secCert); | |
773 | ||
774 | return (expiration); | |
3af9ac9e MS |
775 | } |
776 | ||
777 | ||
72d05bc9 MS |
778 | /* |
779 | * 'httpCredentialsString()' - Return a string representing the credentials. | |
780 | * | |
8072030b | 781 | * @since CUPS 2.0/macOS 10.10@ |
72d05bc9 MS |
782 | */ |
783 | ||
784 | size_t /* O - Total size of credentials string */ | |
785 | httpCredentialsString( | |
786 | cups_array_t *credentials, /* I - Credentials */ | |
787 | char *buffer, /* I - Buffer or @code NULL@ */ | |
788 | size_t bufsize) /* I - Size of buffer */ | |
789 | { | |
376d7c69 | 790 | http_credential_t *first; /* First certificate */ |
9653cfdf | 791 | SecCertificateRef secCert; /* Certificate reference */ |
9653cfdf MS |
792 | |
793 | ||
807315e6 | 794 | DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", (void *)credentials, (void *)buffer, CUPS_LLCAST bufsize)); |
376d7c69 | 795 | |
9653cfdf MS |
796 | if (!buffer) |
797 | return (0); | |
72d05bc9 MS |
798 | |
799 | if (buffer && bufsize > 0) | |
800 | *buffer = '\0'; | |
801 | ||
376d7c69 MS |
802 | if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL && |
803 | (secCert = http_cdsa_create_credential(first)) != NULL) | |
9653cfdf | 804 | { |
376d7c69 MS |
805 | CFStringRef cf_name; /* CF common name string */ |
806 | char name[256]; /* Common name associated with cert */ | |
807 | time_t expiration; /* Expiration date of cert */ | |
808 | _cups_md5_state_t md5_state; /* MD5 state */ | |
809 | unsigned char md5_digest[16]; /* MD5 result */ | |
810 | ||
811 | if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL) | |
9653cfdf | 812 | { |
376d7c69 MS |
813 | CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8); |
814 | CFRelease(cf_name); | |
9653cfdf | 815 | } |
376d7c69 MS |
816 | else |
817 | strlcpy(name, "unknown", sizeof(name)); | |
818 | ||
819 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); | |
820 | ||
821 | _cupsMD5Init(&md5_state); | |
822 | _cupsMD5Append(&md5_state, first->data, (int)first->datalen); | |
823 | _cupsMD5Finish(&md5_state, md5_digest); | |
824 | ||
825 | 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 |
826 | |
827 | CFRelease(secCert); | |
828 | } | |
829 | ||
376d7c69 MS |
830 | DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer)); |
831 | ||
9653cfdf | 832 | return (strlen(buffer)); |
72d05bc9 MS |
833 | } |
834 | ||
835 | ||
2c85b752 MS |
836 | /* |
837 | * '_httpFreeCredentials()' - Free internal credentials. | |
838 | */ | |
839 | ||
840 | void | |
841 | _httpFreeCredentials( | |
842 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
843 | { | |
844 | if (!credentials) | |
845 | return; | |
846 | ||
847 | CFRelease(credentials); | |
848 | } | |
849 | ||
850 | ||
72d05bc9 MS |
851 | /* |
852 | * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file. | |
853 | * | |
e1f19878 | 854 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
855 | */ |
856 | ||
dafebafd | 857 | int /* O - 0 on success, -1 on error */ |
72d05bc9 | 858 | httpLoadCredentials( |
f93b32b6 | 859 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
860 | cups_array_t **credentials, /* IO - Credentials */ |
861 | const char *common_name) /* I - Common name for credentials */ | |
862 | { | |
dafebafd | 863 | OSStatus err; /* Error info */ |
fc4bbb58 | 864 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 865 | char filename[1024]; /* Filename for keychain */ |
4daf7e97 MS |
866 | SecKeychainRef keychain = NULL,/* Keychain reference */ |
867 | syschain = NULL;/* System keychain */ | |
fc4bbb58 MS |
868 | CFArrayRef list; /* Keychain list */ |
869 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 MS |
870 | SecCertificateRef cert = NULL; /* Certificate */ |
871 | CFDataRef data; /* Certificate data */ | |
dafebafd MS |
872 | SecPolicyRef policy = NULL; /* Policy ref */ |
873 | CFStringRef cfcommon_name = NULL; | |
874 | /* Server name */ | |
875 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
dafebafd MS |
876 | |
877 | ||
807315e6 | 878 | DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name)); |
88f1e9c8 MS |
879 | |
880 | if (!credentials) | |
881 | return (-1); | |
882 | ||
883 | *credentials = NULL; | |
884 | ||
fc4bbb58 | 885 | #ifdef HAVE_SECKEYCHAINOPEN |
4daf7e97 | 886 | keychain = http_cdsa_open_keychain(path, filename, sizeof(filename)); |
88f1e9c8 | 887 | |
4daf7e97 | 888 | if (!keychain) |
dafebafd MS |
889 | goto cleanup; |
890 | ||
4daf7e97 MS |
891 | syschain = http_cdsa_open_system_keychain(); |
892 | ||
fc4bbb58 MS |
893 | #else |
894 | if (path) | |
895 | return (-1); | |
896 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
897 | ||
dafebafd MS |
898 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
899 | ||
900 | policy = SecPolicyCreateSSL(1, cfcommon_name); | |
901 | ||
902 | if (cfcommon_name) | |
903 | CFRelease(cfcommon_name); | |
904 | ||
905 | if (!policy) | |
906 | goto cleanup; | |
907 | ||
908 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
909 | goto cleanup; | |
910 | ||
88f1e9c8 | 911 | CFDictionaryAddValue(query, kSecClass, kSecClassCertificate); |
dafebafd MS |
912 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); |
913 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
914 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
dafebafd | 915 | |
fc4bbb58 | 916 | #ifdef HAVE_SECKEYCHAINOPEN |
4daf7e97 MS |
917 | if (syschain) |
918 | { | |
919 | const void *values[2] = { syschain, keychain }; | |
920 | ||
921 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)values, 2, &kCFTypeArrayCallBacks); | |
922 | } | |
923 | else | |
924 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks); | |
fc4bbb58 | 925 | CFDictionaryAddValue(query, kSecMatchSearchList, list); |
dafebafd | 926 | CFRelease(list); |
fc4bbb58 | 927 | #endif /* HAVE_SECKEYCHAINOPEN */ |
dafebafd | 928 | |
88f1e9c8 | 929 | err = SecItemCopyMatching(query, (CFTypeRef *)&cert); |
dafebafd MS |
930 | |
931 | if (err) | |
932 | goto cleanup; | |
933 | ||
88f1e9c8 | 934 | if (CFGetTypeID(cert) != SecCertificateGetTypeID()) |
dafebafd MS |
935 | goto cleanup; |
936 | ||
88f1e9c8 MS |
937 | if ((data = SecCertificateCopyData(cert)) != NULL) |
938 | { | |
939 | DEBUG_printf(("1httpLoadCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); | |
940 | ||
941 | *credentials = cupsArrayNew(NULL, NULL); | |
942 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); | |
943 | CFRelease(data); | |
944 | } | |
dafebafd MS |
945 | |
946 | cleanup : | |
947 | ||
fc4bbb58 | 948 | #ifdef HAVE_SECKEYCHAINOPEN |
dafebafd MS |
949 | if (keychain) |
950 | CFRelease(keychain); | |
4daf7e97 MS |
951 | |
952 | if (syschain) | |
953 | CFRelease(syschain); | |
fc4bbb58 | 954 | #endif /* HAVE_SECKEYCHAINOPEN */ |
88f1e9c8 MS |
955 | if (cert) |
956 | CFRelease(cert); | |
dafebafd MS |
957 | if (policy) |
958 | CFRelease(policy); | |
959 | if (query) | |
960 | CFRelease(query); | |
961 | ||
88f1e9c8 MS |
962 | DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1)); |
963 | ||
964 | return (*credentials ? 0 : -1); | |
72d05bc9 MS |
965 | } |
966 | ||
967 | ||
72d05bc9 MS |
968 | /* |
969 | * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file. | |
970 | * | |
e1f19878 | 971 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
972 | */ |
973 | ||
974 | int /* O - -1 on error, 0 on success */ | |
975 | httpSaveCredentials( | |
f93b32b6 | 976 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
977 | cups_array_t *credentials, /* I - Credentials */ |
978 | const char *common_name) /* I - Common name for credentials */ | |
979 | { | |
88f1e9c8 | 980 | int ret = -1; /* Return value */ |
41e0907c | 981 | OSStatus err; /* Error info */ |
fc4bbb58 | 982 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 MS |
983 | char filename[1024]; /* Filename for keychain */ |
984 | SecKeychainRef keychain = NULL;/* Keychain reference */ | |
fc4bbb58 MS |
985 | CFArrayRef list; /* Keychain list */ |
986 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 | 987 | SecCertificateRef cert = NULL; /* Certificate */ |
88f1e9c8 | 988 | CFMutableDictionaryRef attrs = NULL; /* Attributes for add */ |
41e0907c MS |
989 | |
990 | ||
807315e6 | 991 | DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name)); |
88f1e9c8 | 992 | if (!credentials) |
41e0907c MS |
993 | goto cleanup; |
994 | ||
524c65e6 MS |
995 | if (!httpCredentialsAreValidForName(credentials, common_name)) |
996 | { | |
997 | DEBUG_puts("1httpSaveCredentials: Common name does not match."); | |
998 | return (-1); | |
999 | } | |
1000 | ||
88f1e9c8 MS |
1001 | if ((cert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
1002 | { | |
1003 | DEBUG_puts("1httpSaveCredentials: Unable to create certificate."); | |
41e0907c | 1004 | goto cleanup; |
88f1e9c8 | 1005 | } |
41e0907c | 1006 | |
fc4bbb58 | 1007 | #ifdef HAVE_SECKEYCHAINOPEN |
4daf7e97 | 1008 | keychain = http_cdsa_open_keychain(path, filename, sizeof(filename)); |
2c85b752 | 1009 | |
4daf7e97 | 1010 | if (!keychain) |
88f1e9c8 | 1011 | goto cleanup; |
2c85b752 | 1012 | |
fc4bbb58 MS |
1013 | #else |
1014 | if (path) | |
1015 | return (-1); | |
1016 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 | 1017 | |
88f1e9c8 MS |
1018 | if ((attrs = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL) |
1019 | { | |
1020 | DEBUG_puts("1httpSaveCredentials: Unable to create dictionary."); | |
1021 | goto cleanup; | |
2c85b752 MS |
1022 | } |
1023 | ||
88f1e9c8 | 1024 | CFDictionaryAddValue(attrs, kSecClass, kSecClassCertificate); |
88f1e9c8 | 1025 | CFDictionaryAddValue(attrs, kSecValueRef, cert); |
fc4bbb58 MS |
1026 | |
1027 | #ifdef HAVE_SECKEYCHAINOPEN | |
1028 | if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL) | |
1029 | { | |
1030 | DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains."); | |
1031 | goto cleanup; | |
1032 | } | |
88f1e9c8 | 1033 | CFDictionaryAddValue(attrs, kSecMatchSearchList, list); |
fc4bbb58 MS |
1034 | CFRelease(list); |
1035 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 | 1036 | |
88f1e9c8 | 1037 | /* Note: SecItemAdd consumes "attrs"... */ |
524c65e6 | 1038 | err = SecItemAdd(attrs, NULL); |
88f1e9c8 | 1039 | DEBUG_printf(("1httpSaveCredentials: SecItemAdd returned %d.", (int)err)); |
2c85b752 | 1040 | |
88f1e9c8 | 1041 | cleanup : |
2c85b752 | 1042 | |
fc4bbb58 | 1043 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 MS |
1044 | if (keychain) |
1045 | CFRelease(keychain); | |
fc4bbb58 | 1046 | #endif /* HAVE_SECKEYCHAINOPEN */ |
88f1e9c8 MS |
1047 | if (cert) |
1048 | CFRelease(cert); | |
2c85b752 | 1049 | |
88f1e9c8 | 1050 | DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret)); |
2c85b752 | 1051 | |
88f1e9c8 | 1052 | return (ret); |
2c85b752 MS |
1053 | } |
1054 | ||
1055 | ||
1056 | /* | |
25731360 | 1057 | * '_httpTLSInitialize()' - Initialize the TLS stack. |
2c85b752 MS |
1058 | */ |
1059 | ||
25731360 MS |
1060 | void |
1061 | _httpTLSInitialize(void) | |
2c85b752 MS |
1062 | { |
1063 | /* | |
1064 | * Nothing to do... | |
1065 | */ | |
1066 | } | |
1067 | ||
1068 | ||
1069 | /* | |
25731360 | 1070 | * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes. |
2c85b752 MS |
1071 | */ |
1072 | ||
25731360 MS |
1073 | size_t |
1074 | _httpTLSPending(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1075 | { |
1076 | size_t bytes; /* Bytes that are available */ | |
1077 | ||
1078 | ||
1079 | if (!SSLGetBufferedReadSize(http->tls, &bytes)) | |
1080 | return (bytes); | |
1081 | ||
1082 | return (0); | |
1083 | } | |
1084 | ||
1085 | ||
1086 | /* | |
25731360 | 1087 | * '_httpTLSRead()' - Read from a SSL/TLS connection. |
2c85b752 MS |
1088 | */ |
1089 | ||
25731360 MS |
1090 | int /* O - Bytes read */ |
1091 | _httpTLSRead(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1092 | char *buf, /* I - Buffer to store data */ |
1093 | int len) /* I - Length of buffer */ | |
1094 | { | |
1095 | int result; /* Return value */ | |
1096 | OSStatus error; /* Error info */ | |
1097 | size_t processed; /* Number of bytes processed */ | |
1098 | ||
1099 | ||
7e86f2f6 | 1100 | error = SSLRead(http->tls, buf, (size_t)len, &processed); |
25731360 | 1101 | DEBUG_printf(("6_httpTLSRead: error=%d, processed=%d", (int)error, |
2c85b752 MS |
1102 | (int)processed)); |
1103 | switch (error) | |
1104 | { | |
1105 | case 0 : | |
1106 | result = (int)processed; | |
1107 | break; | |
1108 | ||
1109 | case errSSLWouldBlock : | |
1110 | if (processed) | |
1111 | result = (int)processed; | |
1112 | else | |
1113 | { | |
1114 | result = -1; | |
1115 | errno = EINTR; | |
1116 | } | |
1117 | break; | |
1118 | ||
1119 | case errSSLClosedGraceful : | |
1120 | default : | |
1121 | if (processed) | |
1122 | result = (int)processed; | |
1123 | else | |
1124 | { | |
1125 | result = -1; | |
1126 | errno = EPIPE; | |
1127 | } | |
1128 | break; | |
1129 | } | |
1130 | ||
1131 | return (result); | |
1132 | } | |
1133 | ||
1134 | ||
63aefcd5 MS |
1135 | /* |
1136 | * '_httpTLSSetOptions()' - Set TLS protocol and cipher suite options. | |
1137 | */ | |
1138 | ||
1139 | void | |
1140 | _httpTLSSetOptions(int options) /* I - Options */ | |
1141 | { | |
1142 | tls_options = options; | |
1143 | } | |
1144 | ||
1145 | ||
2c85b752 | 1146 | /* |
25731360 | 1147 | * '_httpTLSStart()' - Set up SSL/TLS support on a connection. |
2c85b752 MS |
1148 | */ |
1149 | ||
25731360 MS |
1150 | int /* O - 0 on success, -1 on failure */ |
1151 | _httpTLSStart(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1152 | { |
1153 | char hostname[256], /* Hostname */ | |
1154 | *hostptr; /* Pointer into hostname */ | |
1155 | _cups_globals_t *cg = _cupsGlobals(); | |
1156 | /* Pointer to library globals */ | |
1157 | OSStatus error; /* Error code */ | |
1158 | const char *message = NULL;/* Error message */ | |
1159 | cups_array_t *credentials; /* Credentials array */ | |
1160 | cups_array_t *names; /* CUPS distinguished names */ | |
1161 | CFArrayRef dn_array; /* CF distinguished names array */ | |
1162 | CFIndex count; /* Number of credentials */ | |
1163 | CFDataRef data; /* Certificate data */ | |
1164 | int i; /* Looping var */ | |
1165 | http_credential_t *credential; /* Credential data */ | |
1166 | ||
1167 | ||
807315e6 | 1168 | DEBUG_printf(("3_httpTLSStart(http=%p)", (void *)http)); |
b37d45d9 MS |
1169 | |
1170 | if (tls_options < 0) | |
1171 | { | |
1172 | DEBUG_puts("4_httpTLSStart: Setting defaults."); | |
1173 | _cupsSetDefaults(); | |
1174 | DEBUG_printf(("4_httpTLSStart: tls_options=%x", tls_options)); | |
1175 | } | |
2c85b752 | 1176 | |
c913d726 | 1177 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 1178 | if (http->mode == _HTTP_MODE_SERVER && !tls_keychain) |
2c85b752 | 1179 | { |
25731360 | 1180 | DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called."); |
41e0907c MS |
1181 | http->error = errno = EINVAL; |
1182 | http->status = HTTP_STATUS_ERROR; | |
1183 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Server credentials not set."), 1); | |
2c85b752 | 1184 | |
41e0907c | 1185 | return (-1); |
2c85b752 | 1186 | } |
2274d26b | 1187 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2c85b752 | 1188 | |
72d05bc9 | 1189 | if ((http->tls = SSLCreateContext(kCFAllocatorDefault, http->mode == _HTTP_MODE_CLIENT ? kSSLClientSide : kSSLServerSide, kSSLStreamType)) == NULL) |
2c85b752 | 1190 | { |
25731360 | 1191 | DEBUG_puts("4_httpTLSStart: SSLCreateContext failed."); |
2c85b752 MS |
1192 | http->error = errno = ENOMEM; |
1193 | http->status = HTTP_STATUS_ERROR; | |
1194 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
1195 | ||
1196 | return (-1); | |
1197 | } | |
1198 | ||
1199 | error = SSLSetConnection(http->tls, http); | |
25731360 | 1200 | DEBUG_printf(("4_httpTLSStart: SSLSetConnection, error=%d", (int)error)); |
2c85b752 MS |
1201 | |
1202 | if (!error) | |
1203 | { | |
1204 | error = SSLSetIOFuncs(http->tls, http_cdsa_read, http_cdsa_write); | |
25731360 | 1205 | DEBUG_printf(("4_httpTLSStart: SSLSetIOFuncs, error=%d", (int)error)); |
2c85b752 MS |
1206 | } |
1207 | ||
1208 | if (!error) | |
1209 | { | |
1210 | error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth, | |
1211 | true); | |
63aefcd5 MS |
1212 | DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", (int)error)); |
1213 | } | |
1214 | ||
1215 | if (!error) | |
1216 | { | |
ee6226a5 | 1217 | SSLProtocol minProtocol; |
4492316e | 1218 | |
ee6226a5 MS |
1219 | if (tls_options & _HTTP_TLS_DENY_TLS10) |
1220 | minProtocol = kTLSProtocol11; | |
1221 | else if (tls_options & _HTTP_TLS_ALLOW_SSL3) | |
1222 | minProtocol = kSSLProtocol3; | |
1223 | else | |
1224 | minProtocol = kTLSProtocol1; | |
1225 | ||
1226 | error = SSLSetProtocolVersionMin(http->tls, minProtocol); | |
1227 | DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMin(%d), error=%d", minProtocol, (int)error)); | |
63aefcd5 MS |
1228 | } |
1229 | ||
ee6226a5 | 1230 | # if HAVE_SSLSETENABLEDCIPHERS |
63aefcd5 MS |
1231 | if (!error) |
1232 | { | |
1233 | SSLCipherSuite supported[100]; /* Supported cipher suites */ | |
1234 | size_t num_supported; /* Number of supported cipher suites */ | |
1235 | SSLCipherSuite enabled[100]; /* Cipher suites to enable */ | |
1236 | size_t num_enabled; /* Number of cipher suites to enable */ | |
1237 | ||
1238 | num_supported = sizeof(supported) / sizeof(supported[0]); | |
1239 | error = SSLGetSupportedCiphers(http->tls, supported, &num_supported); | |
1240 | ||
1241 | if (!error) | |
1242 | { | |
1243 | DEBUG_printf(("4_httpTLSStart: %d cipher suites supported.", (int)num_supported)); | |
1244 | ||
1245 | for (i = 0, num_enabled = 0; i < (int)num_supported && num_enabled < (sizeof(enabled) / sizeof(enabled[0])); i ++) | |
1246 | { | |
1247 | switch (supported[i]) | |
1248 | { | |
1249 | /* Obviously insecure cipher suites that we never want to use */ | |
1250 | case SSL_NULL_WITH_NULL_NULL : | |
1251 | case SSL_RSA_WITH_NULL_MD5 : | |
1252 | case SSL_RSA_WITH_NULL_SHA : | |
1253 | case SSL_RSA_EXPORT_WITH_RC4_40_MD5 : | |
1254 | case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 : | |
1255 | case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1256 | case SSL_RSA_WITH_DES_CBC_SHA : | |
1257 | case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1258 | case SSL_DH_DSS_WITH_DES_CBC_SHA : | |
1259 | case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1260 | case SSL_DH_RSA_WITH_DES_CBC_SHA : | |
1261 | case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1262 | case SSL_DHE_DSS_WITH_DES_CBC_SHA : | |
1263 | case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1264 | case SSL_DHE_RSA_WITH_DES_CBC_SHA : | |
1265 | case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5 : | |
1266 | case SSL_DH_anon_WITH_RC4_128_MD5 : | |
1267 | case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA : | |
1268 | case SSL_DH_anon_WITH_DES_CBC_SHA : | |
1269 | case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA : | |
1270 | case SSL_FORTEZZA_DMS_WITH_NULL_SHA : | |
1271 | case TLS_DH_anon_WITH_AES_128_CBC_SHA : | |
1272 | case TLS_DH_anon_WITH_AES_256_CBC_SHA : | |
1273 | case TLS_ECDH_ECDSA_WITH_NULL_SHA : | |
1274 | case TLS_ECDHE_RSA_WITH_NULL_SHA : | |
1275 | case TLS_ECDH_anon_WITH_NULL_SHA : | |
1276 | case TLS_ECDH_anon_WITH_RC4_128_SHA : | |
1277 | case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA : | |
1278 | case TLS_ECDH_anon_WITH_AES_128_CBC_SHA : | |
1279 | case TLS_ECDH_anon_WITH_AES_256_CBC_SHA : | |
1280 | case TLS_RSA_WITH_NULL_SHA256 : | |
1281 | case TLS_DH_anon_WITH_AES_128_CBC_SHA256 : | |
1282 | case TLS_DH_anon_WITH_AES_256_CBC_SHA256 : | |
1283 | case TLS_PSK_WITH_NULL_SHA : | |
1284 | case TLS_DHE_PSK_WITH_NULL_SHA : | |
1285 | case TLS_RSA_PSK_WITH_NULL_SHA : | |
1286 | case TLS_DH_anon_WITH_AES_128_GCM_SHA256 : | |
1287 | case TLS_DH_anon_WITH_AES_256_GCM_SHA384 : | |
1288 | case TLS_PSK_WITH_NULL_SHA256 : | |
1289 | case TLS_PSK_WITH_NULL_SHA384 : | |
1290 | case TLS_DHE_PSK_WITH_NULL_SHA256 : | |
1291 | case TLS_DHE_PSK_WITH_NULL_SHA384 : | |
1292 | case TLS_RSA_PSK_WITH_NULL_SHA256 : | |
1293 | case TLS_RSA_PSK_WITH_NULL_SHA384 : | |
1294 | case SSL_RSA_WITH_DES_CBC_MD5 : | |
b37d45d9 | 1295 | DEBUG_printf(("4_httpTLSStart: Excluding insecure cipher suite %d", supported[i])); |
63aefcd5 MS |
1296 | break; |
1297 | ||
1298 | /* RC4 cipher suites that should only be used as a last resort */ | |
1299 | case SSL_RSA_WITH_RC4_128_MD5 : | |
1300 | case SSL_RSA_WITH_RC4_128_SHA : | |
1301 | case TLS_ECDH_ECDSA_WITH_RC4_128_SHA : | |
1302 | case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA : | |
1303 | case TLS_ECDH_RSA_WITH_RC4_128_SHA : | |
1304 | case TLS_ECDHE_RSA_WITH_RC4_128_SHA : | |
1305 | case TLS_PSK_WITH_RC4_128_SHA : | |
1306 | case TLS_DHE_PSK_WITH_RC4_128_SHA : | |
1307 | case TLS_RSA_PSK_WITH_RC4_128_SHA : | |
1308 | if (tls_options & _HTTP_TLS_ALLOW_RC4) | |
1309 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1310 | else |
1311 | DEBUG_printf(("4_httpTLSStart: Excluding RC4 cipher suite %d", supported[i])); | |
63aefcd5 MS |
1312 | break; |
1313 | ||
ee6226a5 MS |
1314 | /* DH/DHE cipher suites that are problematic with parameters < 1024 bits */ |
1315 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA : | |
1316 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA : | |
1317 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA : | |
1318 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA : | |
1319 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA : | |
1320 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA : | |
1321 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA : | |
1322 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA : | |
1323 | case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA : | |
1324 | case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA : | |
bdc4056c | 1325 | // case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA : |
ee6226a5 MS |
1326 | case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA : |
1327 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA256 : | |
1328 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA256 : | |
1329 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 : | |
1330 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 : | |
1331 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA256 : | |
1332 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA256 : | |
1333 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 : | |
1334 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 : | |
1335 | case TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA : | |
1336 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA : | |
1337 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA : | |
bdc4056c MS |
1338 | // case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 : |
1339 | // case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1340 | case TLS_DH_RSA_WITH_AES_128_GCM_SHA256 : |
1341 | case TLS_DH_RSA_WITH_AES_256_GCM_SHA384 : | |
bdc4056c MS |
1342 | // case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 : |
1343 | // case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1344 | case TLS_DH_DSS_WITH_AES_128_GCM_SHA256 : |
1345 | case TLS_DH_DSS_WITH_AES_256_GCM_SHA384 : | |
1346 | case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 : | |
1347 | case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 : | |
1348 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 : | |
1349 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 : | |
1350 | if (tls_options & _HTTP_TLS_ALLOW_DH) | |
1351 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1352 | else |
1353 | DEBUG_printf(("4_httpTLSStart: Excluding DH/DHE cipher suite %d", supported[i])); | |
ee6226a5 MS |
1354 | break; |
1355 | ||
63aefcd5 MS |
1356 | /* Anything else we'll assume is secure */ |
1357 | default : | |
1358 | enabled[num_enabled ++] = supported[i]; | |
1359 | break; | |
1360 | } | |
1361 | } | |
1362 | ||
1363 | DEBUG_printf(("4_httpTLSStart: %d cipher suites enabled.", (int)num_enabled)); | |
1364 | error = SSLSetEnabledCiphers(http->tls, enabled, num_enabled); | |
1365 | } | |
2c85b752 | 1366 | } |
ee6226a5 | 1367 | #endif /* HAVE_SSLSETENABLEDCIPHERS */ |
2c85b752 | 1368 | |
41e0907c | 1369 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1370 | { |
41e0907c MS |
1371 | /* |
1372 | * Client: set client-side credentials, if any... | |
1373 | */ | |
1374 | ||
2c85b752 MS |
1375 | if (cg->client_cert_cb) |
1376 | { | |
1377 | error = SSLSetSessionOption(http->tls, | |
1378 | kSSLSessionOptionBreakOnCertRequested, true); | |
25731360 | 1379 | DEBUG_printf(("4_httpTLSStart: kSSLSessionOptionBreakOnCertRequested, " |
2c85b752 MS |
1380 | "error=%d", (int)error)); |
1381 | } | |
1382 | else | |
1383 | { | |
88f1e9c8 MS |
1384 | error = http_cdsa_set_credentials(http); |
1385 | DEBUG_printf(("4_httpTLSStart: http_cdsa_set_credentials, error=%d", | |
2c85b752 MS |
1386 | (int)error)); |
1387 | } | |
1388 | } | |
41e0907c MS |
1389 | else if (!error) |
1390 | { | |
1391 | /* | |
1392 | * Server: find/create a certificate for TLS... | |
1393 | */ | |
1394 | ||
1395 | if (http->fields[HTTP_FIELD_HOST][0]) | |
1396 | { | |
1397 | /* | |
1398 | * Use hostname for TLS upgrade... | |
1399 | */ | |
1400 | ||
1401 | strlcpy(hostname, http->fields[HTTP_FIELD_HOST], sizeof(hostname)); | |
1402 | } | |
1403 | else | |
1404 | { | |
1405 | /* | |
1406 | * Resolve hostname from connection address... | |
1407 | */ | |
1408 | ||
1409 | http_addr_t addr; /* Connection address */ | |
1410 | socklen_t addrlen; /* Length of address */ | |
1411 | ||
1412 | addrlen = sizeof(addr); | |
1413 | if (getsockname(http->fd, (struct sockaddr *)&addr, &addrlen)) | |
1414 | { | |
25731360 | 1415 | DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno))); |
41e0907c MS |
1416 | hostname[0] = '\0'; |
1417 | } | |
1418 | else if (httpAddrLocalhost(&addr)) | |
1419 | hostname[0] = '\0'; | |
1420 | else | |
a27a134a MS |
1421 | { |
1422 | httpAddrLookup(&addr, hostname, sizeof(hostname)); | |
25731360 | 1423 | DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname)); |
a27a134a | 1424 | } |
41e0907c MS |
1425 | } |
1426 | ||
a27a134a MS |
1427 | if (isdigit(hostname[0] & 255) || hostname[0] == '[') |
1428 | hostname[0] = '\0'; /* Don't allow numeric addresses */ | |
1429 | ||
41e0907c MS |
1430 | if (hostname[0]) |
1431 | http->tls_credentials = http_cdsa_copy_server(hostname); | |
1432 | else if (tls_common_name) | |
1433 | http->tls_credentials = http_cdsa_copy_server(tls_common_name); | |
1434 | ||
1435 | if (!http->tls_credentials && tls_auto_create && (hostname[0] || tls_common_name)) | |
1436 | { | |
25731360 | 1437 | DEBUG_printf(("4_httpTLSStart: Auto-create credentials for \"%s\".", hostname[0] ? hostname : tls_common_name)); |
41e0907c MS |
1438 | |
1439 | if (!cupsMakeServerCredentials(tls_keypath, hostname[0] ? hostname : tls_common_name, 0, NULL, time(NULL) + 365 * 86400)) | |
1440 | { | |
25731360 | 1441 | DEBUG_puts("4_httpTLSStart: cupsMakeServerCredentials failed."); |
41e0907c MS |
1442 | http->error = errno = EINVAL; |
1443 | http->status = HTTP_STATUS_ERROR; | |
1444 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create server credentials."), 1); | |
1445 | ||
1446 | return (-1); | |
1447 | } | |
1448 | ||
1449 | http->tls_credentials = http_cdsa_copy_server(hostname[0] ? hostname : tls_common_name); | |
1450 | } | |
1451 | ||
1452 | if (!http->tls_credentials) | |
1453 | { | |
25731360 | 1454 | DEBUG_puts("4_httpTLSStart: Unable to find server credentials."); |
41e0907c MS |
1455 | http->error = errno = EINVAL; |
1456 | http->status = HTTP_STATUS_ERROR; | |
1457 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to find server credentials."), 1); | |
1458 | ||
1459 | return (-1); | |
1460 | } | |
1461 | ||
1462 | error = SSLSetCertificate(http->tls, http->tls_credentials); | |
1463 | ||
25731360 | 1464 | DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error)); |
41e0907c MS |
1465 | } |
1466 | ||
807315e6 | 1467 | DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", (void *)http->tls_credentials)); |
2c85b752 MS |
1468 | |
1469 | /* | |
1470 | * Let the server know which hostname/domain we are trying to connect to | |
1471 | * in case it wants to serve up a certificate with a matching common name. | |
1472 | */ | |
1473 | ||
41e0907c | 1474 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1475 | { |
41e0907c MS |
1476 | /* |
1477 | * Client: get the hostname to use for TLS... | |
1478 | */ | |
1479 | ||
1480 | if (httpAddrLocalhost(http->hostaddr)) | |
1481 | { | |
1482 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
1483 | } | |
1484 | else | |
1485 | { | |
1486 | /* | |
1487 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
1488 | */ | |
1489 | ||
1490 | strlcpy(hostname, http->hostname, sizeof(hostname)); | |
1491 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
1492 | *hostptr == '.') | |
1493 | *hostptr = '\0'; | |
1494 | } | |
1495 | ||
2c85b752 MS |
1496 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); |
1497 | ||
25731360 | 1498 | DEBUG_printf(("4_httpTLSStart: SSLSetPeerDomainName, error=%d", (int)error)); |
2c85b752 MS |
1499 | } |
1500 | ||
1501 | if (!error) | |
1502 | { | |
1503 | int done = 0; /* Are we done yet? */ | |
1504 | ||
1505 | while (!error && !done) | |
1506 | { | |
1507 | error = SSLHandshake(http->tls); | |
1508 | ||
25731360 | 1509 | DEBUG_printf(("4_httpTLSStart: SSLHandshake returned %d.", (int)error)); |
2c85b752 MS |
1510 | |
1511 | switch (error) | |
1512 | { | |
1513 | case noErr : | |
1514 | done = 1; | |
1515 | break; | |
1516 | ||
1517 | case errSSLWouldBlock : | |
1518 | error = noErr; /* Force a retry */ | |
1519 | usleep(1000); /* in 1 millisecond */ | |
1520 | break; | |
1521 | ||
1522 | case errSSLServerAuthCompleted : | |
1523 | error = 0; | |
1524 | if (cg->server_cert_cb) | |
1525 | { | |
1526 | error = httpCopyCredentials(http, &credentials); | |
1527 | if (!error) | |
1528 | { | |
1529 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
1530 | cg->server_cert_data); | |
1531 | httpFreeCredentials(credentials); | |
1532 | } | |
1533 | ||
25731360 | 1534 | DEBUG_printf(("4_httpTLSStart: Server certificate callback " |
2c85b752 MS |
1535 | "returned %d.", (int)error)); |
1536 | } | |
1537 | break; | |
1538 | ||
1539 | case errSSLClientCertRequested : | |
1540 | error = 0; | |
1541 | ||
1542 | if (cg->client_cert_cb) | |
1543 | { | |
1544 | names = NULL; | |
1545 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && | |
1546 | dn_array) | |
1547 | { | |
1548 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
1549 | { | |
1550 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
1551 | { | |
1552 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
1553 | ||
1554 | if ((credential = malloc(sizeof(*credential))) != NULL) | |
1555 | { | |
7e86f2f6 | 1556 | credential->datalen = (size_t)CFDataGetLength(data); |
2c85b752 MS |
1557 | if ((credential->data = malloc(credential->datalen))) |
1558 | { | |
1559 | memcpy((void *)credential->data, CFDataGetBytePtr(data), | |
1560 | credential->datalen); | |
1561 | cupsArrayAdd(names, credential); | |
1562 | } | |
1563 | else | |
1564 | free(credential); | |
1565 | } | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | CFRelease(dn_array); | |
1570 | } | |
1571 | ||
1572 | if (!error) | |
1573 | { | |
1574 | error = (cg->client_cert_cb)(http, http->tls, names, | |
1575 | cg->client_cert_data); | |
1576 | ||
25731360 | 1577 | DEBUG_printf(("4_httpTLSStart: Client certificate callback " |
2c85b752 MS |
1578 | "returned %d.", (int)error)); |
1579 | } | |
1580 | ||
1581 | httpFreeCredentials(names); | |
1582 | } | |
1583 | break; | |
1584 | ||
1585 | case errSSLUnknownRootCert : | |
1586 | message = _("Unable to establish a secure connection to host " | |
1587 | "(untrusted certificate)."); | |
1588 | break; | |
1589 | ||
1590 | case errSSLNoRootCert : | |
1591 | message = _("Unable to establish a secure connection to host " | |
1592 | "(self-signed certificate)."); | |
1593 | break; | |
1594 | ||
1595 | case errSSLCertExpired : | |
1596 | message = _("Unable to establish a secure connection to host " | |
1597 | "(expired certificate)."); | |
1598 | break; | |
1599 | ||
1600 | case errSSLCertNotYetValid : | |
1601 | message = _("Unable to establish a secure connection to host " | |
1602 | "(certificate not yet valid)."); | |
1603 | break; | |
1604 | ||
1605 | case errSSLHostNameMismatch : | |
1606 | message = _("Unable to establish a secure connection to host " | |
1607 | "(host name mismatch)."); | |
1608 | break; | |
1609 | ||
1610 | case errSSLXCertChainInvalid : | |
1611 | message = _("Unable to establish a secure connection to host " | |
1612 | "(certificate chain invalid)."); | |
1613 | break; | |
1614 | ||
1615 | case errSSLConnectionRefused : | |
1616 | message = _("Unable to establish a secure connection to host " | |
1617 | "(peer dropped connection before responding)."); | |
1618 | break; | |
1619 | ||
1620 | default : | |
1621 | break; | |
1622 | } | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | if (error) | |
1627 | { | |
1628 | http->error = error; | |
1629 | http->status = HTTP_STATUS_ERROR; | |
1630 | errno = ECONNREFUSED; | |
1631 | ||
1632 | CFRelease(http->tls); | |
1633 | http->tls = NULL; | |
1634 | ||
1635 | /* | |
1636 | * If an error string wasn't set by the callbacks use a generic one... | |
1637 | */ | |
1638 | ||
1639 | if (!message) | |
1640 | #ifdef HAVE_CSSMERRORSTRING | |
1641 | message = cssmErrorString(error); | |
1642 | #else | |
1643 | message = _("Unable to establish a secure connection to host."); | |
1644 | #endif /* HAVE_CSSMERRORSTRING */ | |
1645 | ||
1646 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); | |
1647 | ||
1648 | return (-1); | |
1649 | } | |
1650 | ||
1651 | return (0); | |
1652 | } | |
1653 | ||
1654 | ||
1655 | /* | |
25731360 | 1656 | * '_httpTLSStop()' - Shut down SSL/TLS on a connection. |
2c85b752 MS |
1657 | */ |
1658 | ||
25731360 MS |
1659 | void |
1660 | _httpTLSStop(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1661 | { |
1662 | while (SSLClose(http->tls) == errSSLWouldBlock) | |
1663 | usleep(1000); | |
1664 | ||
1665 | CFRelease(http->tls); | |
1666 | ||
1667 | if (http->tls_credentials) | |
1668 | CFRelease(http->tls_credentials); | |
1669 | ||
1670 | http->tls = NULL; | |
1671 | http->tls_credentials = NULL; | |
1672 | } | |
1673 | ||
1674 | ||
1675 | /* | |
25731360 | 1676 | * '_httpTLSWrite()' - Write to a SSL/TLS connection. |
2c85b752 MS |
1677 | */ |
1678 | ||
25731360 MS |
1679 | int /* O - Bytes written */ |
1680 | _httpTLSWrite(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1681 | const char *buf, /* I - Buffer holding data */ |
1682 | int len) /* I - Length of buffer */ | |
1683 | { | |
1684 | ssize_t result; /* Return value */ | |
1685 | OSStatus error; /* Error info */ | |
1686 | size_t processed; /* Number of bytes processed */ | |
1687 | ||
1688 | ||
807315e6 | 1689 | DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", (void *)http, (void *)buf, len)); |
2c85b752 | 1690 | |
7e86f2f6 | 1691 | error = SSLWrite(http->tls, buf, (size_t)len, &processed); |
2c85b752 MS |
1692 | |
1693 | switch (error) | |
1694 | { | |
1695 | case 0 : | |
1696 | result = (int)processed; | |
1697 | break; | |
1698 | ||
1699 | case errSSLWouldBlock : | |
1700 | if (processed) | |
1701 | { | |
1702 | result = (int)processed; | |
1703 | } | |
1704 | else | |
1705 | { | |
1706 | result = -1; | |
1707 | errno = EINTR; | |
1708 | } | |
1709 | break; | |
1710 | ||
1711 | case errSSLClosedGraceful : | |
1712 | default : | |
1713 | if (processed) | |
1714 | { | |
1715 | result = (int)processed; | |
1716 | } | |
1717 | else | |
1718 | { | |
1719 | result = -1; | |
1720 | errno = EPIPE; | |
1721 | } | |
1722 | break; | |
1723 | } | |
1724 | ||
25731360 | 1725 | DEBUG_printf(("3_httpTLSWrite: Returning %d.", (int)result)); |
2c85b752 MS |
1726 | |
1727 | return ((int)result); | |
1728 | } | |
1729 | ||
1730 | ||
1731 | /* | |
88f1e9c8 | 1732 | * 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain. |
2c85b752 MS |
1733 | */ |
1734 | ||
88f1e9c8 MS |
1735 | static CFArrayRef /* O - Array of certificates or NULL */ |
1736 | http_cdsa_copy_server( | |
1737 | const char *common_name) /* I - Server's hostname */ | |
2c85b752 | 1738 | { |
2274d26b | 1739 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 1740 | OSStatus err; /* Error info */ |
88f1e9c8 MS |
1741 | SecIdentityRef identity = NULL;/* Identity */ |
1742 | CFArrayRef certificates = NULL; | |
1743 | /* Certificate array */ | |
1744 | SecPolicyRef policy = NULL; /* Policy ref */ | |
1745 | CFStringRef cfcommon_name = NULL; | |
1746 | /* Server name */ | |
1747 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
1748 | CFArrayRef list = NULL; /* Keychain list */ | |
4daf7e97 | 1749 | SecKeychainRef syschain = NULL;/* System keychain */ |
2c85b752 | 1750 | |
2c85b752 | 1751 | |
2274d26b MS |
1752 | DEBUG_printf(("3http_cdsa_copy_server(common_name=\"%s\")", common_name)); |
1753 | ||
88f1e9c8 | 1754 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
2c85b752 | 1755 | |
88f1e9c8 MS |
1756 | policy = SecPolicyCreateSSL(1, cfcommon_name); |
1757 | ||
88f1e9c8 | 1758 | if (!policy) |
2274d26b MS |
1759 | { |
1760 | DEBUG_puts("4http_cdsa_copy_server: Unable to create SSL policy."); | |
88f1e9c8 | 1761 | goto cleanup; |
2274d26b | 1762 | } |
88f1e9c8 MS |
1763 | |
1764 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
2274d26b MS |
1765 | { |
1766 | DEBUG_puts("4http_cdsa_copy_server: Unable to create query dictionary."); | |
88f1e9c8 | 1767 | goto cleanup; |
2274d26b | 1768 | } |
88f1e9c8 | 1769 | |
f93b32b6 MS |
1770 | _cupsMutexLock(&tls_mutex); |
1771 | ||
88f1e9c8 MS |
1772 | CFDictionaryAddValue(query, kSecClass, kSecClassIdentity); |
1773 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); | |
1774 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
1775 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
88f1e9c8 | 1776 | |
4daf7e97 MS |
1777 | syschain = http_cdsa_open_system_keychain(); |
1778 | ||
1779 | if (syschain) | |
1780 | { | |
1781 | const void *values[2] = { syschain, tls_keychain }; | |
1782 | ||
1783 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)values, 2, &kCFTypeArrayCallBacks); | |
1784 | } | |
1785 | else | |
1786 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks); | |
1787 | ||
fc4bbb58 | 1788 | CFDictionaryAddValue(query, kSecMatchSearchList, list); |
88f1e9c8 MS |
1789 | CFRelease(list); |
1790 | ||
1791 | err = SecItemCopyMatching(query, (CFTypeRef *)&identity); | |
1792 | ||
f93b32b6 MS |
1793 | _cupsMutexUnlock(&tls_mutex); |
1794 | ||
2274d26b MS |
1795 | if (err != noErr) |
1796 | { | |
1797 | DEBUG_printf(("4http_cdsa_copy_server: SecItemCopyMatching failed with status %d.", (int)err)); | |
88f1e9c8 | 1798 | goto cleanup; |
2274d26b | 1799 | } |
88f1e9c8 MS |
1800 | |
1801 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
2274d26b MS |
1802 | { |
1803 | DEBUG_puts("4http_cdsa_copy_server: Search returned something that is not an identity."); | |
88f1e9c8 | 1804 | goto cleanup; |
2274d26b | 1805 | } |
88f1e9c8 MS |
1806 | |
1807 | if ((certificates = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks)) == NULL) | |
2274d26b MS |
1808 | { |
1809 | DEBUG_puts("4http_cdsa_copy_server: Unable to create array of certificates."); | |
88f1e9c8 | 1810 | goto cleanup; |
2274d26b | 1811 | } |
88f1e9c8 MS |
1812 | |
1813 | cleanup : | |
1814 | ||
4daf7e97 MS |
1815 | if (syschain) |
1816 | CFRelease(syschain); | |
88f1e9c8 MS |
1817 | if (identity) |
1818 | CFRelease(identity); | |
88f1e9c8 MS |
1819 | if (policy) |
1820 | CFRelease(policy); | |
2274d26b MS |
1821 | if (cfcommon_name) |
1822 | CFRelease(cfcommon_name); | |
88f1e9c8 MS |
1823 | if (query) |
1824 | CFRelease(query); | |
1825 | ||
2274d26b MS |
1826 | DEBUG_printf(("4http_cdsa_copy_server: Returning %p.", (void *)certificates)); |
1827 | ||
88f1e9c8 | 1828 | return (certificates); |
2274d26b MS |
1829 | #else |
1830 | ||
1831 | if (!tls_selfsigned) | |
1832 | return (NULL); | |
1833 | ||
1834 | return (CFArrayCreate(NULL, (const void **)&tls_selfsigned, 1, &kCFTypeArrayCallBacks)); | |
1835 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 MS |
1836 | } |
1837 | ||
1838 | ||
2ece34a9 MS |
1839 | /* |
1840 | * 'http_cdsa_create_credential()' - Create a single credential in the internal format. | |
1841 | */ | |
1842 | ||
1843 | static SecCertificateRef /* O - Certificate */ | |
1844 | http_cdsa_create_credential( | |
1845 | http_credential_t *credential) /* I - Credential */ | |
1846 | { | |
1847 | if (!credential) | |
1848 | return (NULL); | |
1849 | ||
1850 | return (SecCertificateCreateWithBytes(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen)); | |
1851 | } | |
1852 | ||
1853 | ||
fc4bbb58 | 1854 | #ifdef HAVE_SECKEYCHAINOPEN |
005f7f1f MS |
1855 | /* |
1856 | * 'http_cdsa_default_path()' - Get the default keychain path. | |
1857 | */ | |
1858 | ||
1859 | static const char * /* O - Keychain path */ | |
1860 | http_cdsa_default_path(char *buffer, /* I - Path buffer */ | |
1861 | size_t bufsize) /* I - Size of buffer */ | |
1862 | { | |
1863 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
1864 | ||
1865 | ||
4daf7e97 MS |
1866 | /* |
1867 | * Determine the default keychain path. Note that the login and system | |
1868 | * keychains are no longer accessible to user applications starting in macOS | |
1869 | * 10.11.4 (!), so we need to create our own keychain just for CUPS. | |
1870 | */ | |
1871 | ||
005f7f1f | 1872 | if (getuid() && home) |
4daf7e97 | 1873 | snprintf(buffer, bufsize, "%s/.cups/ssl.keychain", home); |
005f7f1f | 1874 | else |
4daf7e97 | 1875 | strlcpy(buffer, "/etc/cups/ssl.keychain", bufsize); |
005f7f1f MS |
1876 | |
1877 | DEBUG_printf(("1http_cdsa_default_path: Using default path \"%s\".", buffer)); | |
1878 | ||
1879 | return (buffer); | |
1880 | } | |
4daf7e97 MS |
1881 | |
1882 | ||
1883 | /* | |
1884 | * 'http_cdsa_open_keychain()' - Open (or create) a keychain. | |
1885 | */ | |
1886 | ||
1887 | static SecKeychainRef /* O - Keychain or NULL */ | |
1888 | http_cdsa_open_keychain( | |
1889 | const char *path, /* I - Path to keychain */ | |
1890 | char *filename, /* I - Keychain filename */ | |
1891 | size_t filesize) /* I - Size of filename buffer */ | |
1892 | { | |
1893 | SecKeychainRef keychain = NULL;/* Temporary keychain */ | |
1894 | OSStatus err; /* Error code */ | |
1895 | Boolean interaction; /* Interaction allowed? */ | |
1896 | SecKeychainStatus status = 0; /* Keychain status */ | |
1897 | ||
1898 | ||
1899 | /* | |
1900 | * Get the keychain filename... | |
1901 | */ | |
1902 | ||
1903 | if (!path) | |
1904 | path = http_cdsa_default_path(filename, filesize); | |
1905 | else | |
1906 | strlcpy(filename, path, filesize); | |
1907 | ||
1908 | /* | |
1909 | * Save the interaction setting and disable while we open the keychain... | |
1910 | */ | |
1911 | ||
1912 | SecKeychainGetUserInteractionAllowed(&interaction); | |
1913 | SecKeychainSetUserInteractionAllowed(FALSE); | |
1914 | ||
1915 | if (access(path, R_OK)) | |
1916 | { | |
1917 | /* | |
1918 | * Create a new keychain at the given path... | |
1919 | */ | |
1920 | ||
1921 | err = SecKeychainCreate(path, _CUPS_CDSA_PASSLEN, _CUPS_CDSA_PASSWORD, FALSE, NULL, &keychain); | |
1922 | } | |
1923 | else | |
1924 | { | |
1925 | /* | |
1926 | * Open the existing keychain and unlock as needed... | |
1927 | */ | |
1928 | ||
1929 | err = SecKeychainOpen(path, &keychain); | |
1930 | ||
1931 | if (err == noErr) | |
1932 | err = SecKeychainGetStatus(keychain, &status); | |
1933 | ||
1934 | if (err == noErr && !(status & kSecUnlockStateStatus)) | |
1935 | err = SecKeychainUnlock(keychain, _CUPS_CDSA_PASSLEN, _CUPS_CDSA_PASSWORD, TRUE); | |
1936 | } | |
1937 | ||
1938 | /* | |
1939 | * Restore interaction setting... | |
1940 | */ | |
1941 | ||
1942 | SecKeychainSetUserInteractionAllowed(interaction); | |
1943 | ||
1944 | /* | |
1945 | * Release the keychain if we had any errors... | |
1946 | */ | |
1947 | ||
1948 | if (err != noErr) | |
1949 | { | |
1950 | /* TODO: Set cups last error string */ | |
1951 | DEBUG_printf(("4http_cdsa_open_keychain: Unable to open keychain (%d), returning NULL.", (int)err)); | |
1952 | ||
1953 | if (keychain) | |
1954 | { | |
1955 | CFRelease(keychain); | |
1956 | keychain = NULL; | |
1957 | } | |
1958 | } | |
1959 | ||
1960 | /* | |
1961 | * Return the keychain or NULL... | |
1962 | */ | |
1963 | ||
1964 | return (keychain); | |
1965 | } | |
1966 | ||
1967 | ||
1968 | /* | |
1969 | * 'http_cdsa_open_system_keychain()' - Open the System keychain. | |
1970 | */ | |
1971 | ||
1972 | static SecKeychainRef | |
1973 | http_cdsa_open_system_keychain(void) | |
1974 | { | |
1975 | SecKeychainRef keychain = NULL;/* Temporary keychain */ | |
1976 | OSStatus err; /* Error code */ | |
1977 | Boolean interaction; /* Interaction allowed? */ | |
1978 | SecKeychainStatus status = 0; /* Keychain status */ | |
1979 | ||
1980 | ||
1981 | /* | |
1982 | * Save the interaction setting and disable while we open the keychain... | |
1983 | */ | |
1984 | ||
1985 | SecKeychainGetUserInteractionAllowed(&interaction); | |
1986 | SecKeychainSetUserInteractionAllowed(TRUE); | |
1987 | ||
1988 | err = SecKeychainOpen("/Library/Keychains/System.keychain", &keychain); | |
1989 | ||
1990 | if (err == noErr) | |
1991 | err = SecKeychainGetStatus(keychain, &status); | |
1992 | ||
1993 | if (err == noErr && !(status & kSecUnlockStateStatus)) | |
1994 | err = errSecInteractionNotAllowed; | |
1995 | ||
1996 | /* | |
1997 | * Restore interaction setting... | |
1998 | */ | |
1999 | ||
2000 | SecKeychainSetUserInteractionAllowed(interaction); | |
2001 | ||
2002 | /* | |
2003 | * Release the keychain if we had any errors... | |
2004 | */ | |
2005 | ||
2006 | if (err != noErr) | |
2007 | { | |
2008 | /* TODO: Set cups last error string */ | |
2009 | DEBUG_printf(("4http_cdsa_open_system_keychain: Unable to open keychain (%d), returning NULL.", (int)err)); | |
2010 | ||
2011 | if (keychain) | |
2012 | { | |
2013 | CFRelease(keychain); | |
2014 | keychain = NULL; | |
2015 | } | |
2016 | } | |
2017 | ||
2018 | /* | |
2019 | * Return the keychain or NULL... | |
2020 | */ | |
2021 | ||
2022 | return (keychain); | |
2023 | } | |
fc4bbb58 | 2024 | #endif /* HAVE_SECKEYCHAINOPEN */ |
005f7f1f MS |
2025 | |
2026 | ||
2c85b752 | 2027 | /* |
88f1e9c8 | 2028 | * 'http_cdsa_read()' - Read function for the CDSA library. |
2c85b752 MS |
2029 | */ |
2030 | ||
88f1e9c8 MS |
2031 | static OSStatus /* O - -1 on error, 0 on success */ |
2032 | http_cdsa_read( | |
2033 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2034 | void *data, /* I - Data buffer */ | |
2035 | size_t *dataLength) /* IO - Number of bytes */ | |
2c85b752 | 2036 | { |
88f1e9c8 MS |
2037 | OSStatus result; /* Return value */ |
2038 | ssize_t bytes; /* Number of bytes read */ | |
2039 | http_t *http; /* HTTP connection */ | |
2c85b752 | 2040 | |
2c85b752 | 2041 | |
88f1e9c8 | 2042 | http = (http_t *)connection; |
2c85b752 | 2043 | |
88f1e9c8 | 2044 | if (!http->blocking) |
2c85b752 MS |
2045 | { |
2046 | /* | |
88f1e9c8 | 2047 | * Make sure we have data before we read... |
2c85b752 MS |
2048 | */ |
2049 | ||
88f1e9c8 MS |
2050 | while (!_httpWait(http, http->wait_value, 0)) |
2051 | { | |
2052 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
2053 | continue; | |
2054 | ||
2055 | http->error = ETIMEDOUT; | |
2056 | return (-1); | |
2057 | } | |
2c85b752 MS |
2058 | } |
2059 | ||
88f1e9c8 | 2060 | do |
2c85b752 | 2061 | { |
88f1e9c8 | 2062 | bytes = recv(http->fd, data, *dataLength, 0); |
2c85b752 | 2063 | } |
88f1e9c8 | 2064 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
2c85b752 | 2065 | |
88f1e9c8 MS |
2066 | if ((size_t)bytes == *dataLength) |
2067 | { | |
2068 | result = 0; | |
2069 | } | |
2070 | else if (bytes > 0) | |
2071 | { | |
2072 | *dataLength = (size_t)bytes; | |
2073 | result = errSSLWouldBlock; | |
2074 | } | |
2075 | else | |
2076 | { | |
2077 | *dataLength = 0; | |
2c85b752 | 2078 | |
88f1e9c8 MS |
2079 | if (bytes == 0) |
2080 | result = errSSLClosedGraceful; | |
2081 | else if (errno == EAGAIN) | |
2082 | result = errSSLWouldBlock; | |
2083 | else | |
2084 | result = errSSLClosedAbort; | |
2085 | } | |
2c85b752 | 2086 | |
88f1e9c8 MS |
2087 | return (result); |
2088 | } | |
2c85b752 | 2089 | |
2c85b752 | 2090 | |
88f1e9c8 MS |
2091 | /* |
2092 | * 'http_cdsa_set_credentials()' - Set the TLS credentials. | |
2093 | */ | |
2c85b752 | 2094 | |
88f1e9c8 MS |
2095 | static int /* O - Status of connection */ |
2096 | http_cdsa_set_credentials(http_t *http) /* I - HTTP connection */ | |
2097 | { | |
2098 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
2099 | OSStatus error = 0; /* Error code */ | |
2100 | http_tls_credentials_t credentials = NULL; | |
2101 | /* TLS credentials */ | |
2c85b752 | 2102 | |
2c85b752 | 2103 | |
807315e6 | 2104 | DEBUG_printf(("7http_tls_set_credentials(%p)", (void *)http)); |
2c85b752 | 2105 | |
88f1e9c8 MS |
2106 | /* |
2107 | * Prefer connection specific credentials... | |
2108 | */ | |
2c85b752 | 2109 | |
88f1e9c8 MS |
2110 | if ((credentials = http->tls_credentials) == NULL) |
2111 | credentials = cg->tls_credentials; | |
2c85b752 | 2112 | |
88f1e9c8 MS |
2113 | if (credentials) |
2114 | { | |
2115 | error = SSLSetCertificate(http->tls, credentials); | |
2116 | DEBUG_printf(("4http_tls_set_credentials: SSLSetCertificate, error=%d", | |
2117 | (int)error)); | |
2c85b752 | 2118 | } |
88f1e9c8 MS |
2119 | else |
2120 | DEBUG_puts("4http_tls_set_credentials: No credentials to set."); | |
2121 | ||
2122 | return (error); | |
2123 | } | |
2124 | ||
2125 | ||
2126 | /* | |
2127 | * 'http_cdsa_write()' - Write function for the CDSA library. | |
2128 | */ | |
2129 | ||
2130 | static OSStatus /* O - -1 on error, 0 on success */ | |
2131 | http_cdsa_write( | |
2132 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2133 | const void *data, /* I - Data buffer */ | |
2134 | size_t *dataLength) /* IO - Number of bytes */ | |
2135 | { | |
2136 | OSStatus result; /* Return value */ | |
2137 | ssize_t bytes; /* Number of bytes read */ | |
2138 | http_t *http; /* HTTP connection */ | |
2c85b752 | 2139 | |
2c85b752 | 2140 | |
88f1e9c8 MS |
2141 | http = (http_t *)connection; |
2142 | ||
2143 | do | |
2c85b752 | 2144 | { |
88f1e9c8 MS |
2145 | bytes = write(http->fd, data, *dataLength); |
2146 | } | |
2147 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); | |
2148 | ||
2149 | if ((size_t)bytes == *dataLength) | |
2150 | { | |
2151 | result = 0; | |
2152 | } | |
2153 | else if (bytes >= 0) | |
2154 | { | |
2155 | *dataLength = (size_t)bytes; | |
2156 | result = errSSLWouldBlock; | |
2c85b752 MS |
2157 | } |
2158 | else | |
88f1e9c8 MS |
2159 | { |
2160 | *dataLength = 0; | |
2c85b752 | 2161 | |
88f1e9c8 MS |
2162 | if (errno == EAGAIN) |
2163 | result = errSSLWouldBlock; | |
2164 | else | |
2165 | result = errSSLClosedAbort; | |
2166 | } | |
2167 | ||
2168 | return (result); | |
2c85b752 | 2169 | } |