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Commit | Line | Data |
---|---|---|
2c85b752 | 1 | /* |
8072030b | 2 | * TLS support code for CUPS on macOS. |
2c85b752 | 3 | * |
378eeedf | 4 | * Copyright 2007-2018 by Apple Inc. |
2c85b752 MS |
5 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
6 | * | |
e3101897 | 7 | * Licensed under Apache License v2.0. See the file "LICENSE" for more information. |
2c85b752 MS |
8 | */ |
9 | ||
ebb24a07 | 10 | /**** This file is included from tls.c ****/ |
2c85b752 MS |
11 | |
12 | /* | |
dafebafd | 13 | * Include necessary headers... |
2c85b752 MS |
14 | */ |
15 | ||
dafebafd MS |
16 | #include <spawn.h> |
17 | ||
53af7f21 | 18 | extern char **environ; /* @private@ */ |
dafebafd MS |
19 | |
20 | ||
4daf7e97 MS |
21 | /* |
22 | * Constants, very secure stuff... | |
23 | */ | |
24 | ||
25 | #define _CUPS_CDSA_PASSWORD "42" /* CUPS keychain password */ | |
26 | #define _CUPS_CDSA_PASSLEN 2 /* Length of keychain password */ | |
27 | ||
28 | ||
c0459938 MS |
29 | /* |
30 | * Local globals... | |
31 | */ | |
32 | ||
c0459938 MS |
33 | static int tls_auto_create = 0; |
34 | /* Auto-create self-signed certs? */ | |
35 | static char *tls_common_name = NULL; | |
36 | /* Default common name */ | |
fc4bbb58 | 37 | #ifdef HAVE_SECKEYCHAINOPEN |
afd25c34 MS |
38 | static int tls_cups_keychain = 0; |
39 | /* Opened the CUPS keychain? */ | |
41e0907c MS |
40 | static SecKeychainRef tls_keychain = NULL; |
41 | /* Server cert keychain */ | |
2274d26b MS |
42 | #else |
43 | static SecIdentityRef tls_selfsigned = NULL; | |
44 | /* Temporary self-signed cert */ | |
fc4bbb58 | 45 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c MS |
46 | static char *tls_keypath = NULL; |
47 | /* Server cert keychain path */ | |
48 | static _cups_mutex_t tls_mutex = _CUPS_MUTEX_INITIALIZER; | |
49 | /* Mutex for keychain/certs */ | |
8f1fbdec MS |
50 | static int tls_options = -1,/* Options for TLS connections */ |
51 | tls_min_version = _HTTP_TLS_1_0, | |
52 | tls_max_version = _HTTP_TLS_MAX; | |
c0459938 MS |
53 | |
54 | ||
dafebafd MS |
55 | /* |
56 | * Local functions... | |
57 | */ | |
2c85b752 | 58 | |
41e0907c | 59 | static CFArrayRef http_cdsa_copy_server(const char *common_name); |
2ece34a9 | 60 | static SecCertificateRef http_cdsa_create_credential(http_credential_t *credential); |
fc4bbb58 | 61 | #ifdef HAVE_SECKEYCHAINOPEN |
005f7f1f | 62 | static const char *http_cdsa_default_path(char *buffer, size_t bufsize); |
4daf7e97 MS |
63 | static SecKeychainRef http_cdsa_open_keychain(const char *path, char *filename, size_t filesize); |
64 | static SecKeychainRef http_cdsa_open_system_keychain(void); | |
fc4bbb58 | 65 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c | 66 | static OSStatus http_cdsa_read(SSLConnectionRef connection, void *data, size_t *dataLength); |
88f1e9c8 | 67 | static int http_cdsa_set_credentials(http_t *http); |
41e0907c | 68 | static OSStatus http_cdsa_write(SSLConnectionRef connection, const void *data, size_t *dataLength); |
2c85b752 MS |
69 | |
70 | ||
3af9ac9e MS |
71 | /* |
72 | * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair. | |
73 | * | |
e1f19878 | 74 | * @since CUPS 2.0/OS 10.10@ |
3af9ac9e MS |
75 | */ |
76 | ||
77 | int /* O - 1 on success, 0 on failure */ | |
78 | cupsMakeServerCredentials( | |
f93b32b6 | 79 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
80 | const char *common_name, /* I - Common name */ |
81 | int num_alt_names, /* I - Number of subject alternate names */ | |
82 | const char **alt_names, /* I - Subject Alternate Names */ | |
83 | time_t expiration_date) /* I - Expiration date */ | |
84 | { | |
fc4bbb58 | 85 | #if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE) |
41e0907c MS |
86 | int status = 0; /* Return status */ |
87 | OSStatus err; /* Error code (if any) */ | |
88 | CFStringRef cfcommon_name = NULL; | |
89 | /* CF string for server name */ | |
90 | SecIdentityRef ident = NULL; /* Identity */ | |
91 | SecKeyRef publicKey = NULL, | |
92 | /* Public key */ | |
93 | privateKey = NULL; | |
94 | /* Private key */ | |
558883c6 | 95 | SecCertificateRef cert = NULL; /* Self-signed certificate */ |
41e0907c MS |
96 | CFMutableDictionaryRef keyParams = NULL; |
97 | /* Key generation parameters */ | |
98 | ||
99 | ||
172bdf5d MS |
100 | 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)); |
101 | ||
fc4bbb58 | 102 | (void)path; |
3af9ac9e MS |
103 | (void)num_alt_names; |
104 | (void)alt_names; | |
105 | (void)expiration_date; | |
106 | ||
fc4bbb58 MS |
107 | if (path) |
108 | { | |
109 | DEBUG_puts("1cupsMakeServerCredentials: No keychain support compiled in, returning 0."); | |
110 | return (0); | |
111 | } | |
f93b32b6 | 112 | |
2274d26b MS |
113 | if (tls_selfsigned) |
114 | { | |
115 | DEBUG_puts("1cupsMakeServerCredentials: Using existing self-signed cert."); | |
116 | return (1); | |
117 | } | |
118 | ||
f93b32b6 | 119 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
41e0907c | 120 | if (!cfcommon_name) |
2274d26b MS |
121 | { |
122 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create CF string of common name."); | |
41e0907c | 123 | goto cleanup; |
2274d26b | 124 | } |
41e0907c MS |
125 | |
126 | /* | |
127 | * Create a public/private key pair... | |
128 | */ | |
129 | ||
f93b32b6 | 130 | keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); |
41e0907c | 131 | if (!keyParams) |
2274d26b MS |
132 | { |
133 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create key parameters dictionary."); | |
41e0907c | 134 | goto cleanup; |
2274d26b | 135 | } |
41e0907c | 136 | |
1a7059a0 | 137 | CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeRSA); |
41e0907c | 138 | CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048")); |
2274d26b | 139 | CFDictionaryAddValue(keyParams, kSecAttrLabel, cfcommon_name); |
41e0907c MS |
140 | |
141 | err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey); | |
142 | if (err != noErr) | |
2274d26b MS |
143 | { |
144 | DEBUG_printf(("1cupsMakeServerCredentials: Unable to generate key pair: %d.", (int)err)); | |
41e0907c | 145 | goto cleanup; |
2274d26b | 146 | } |
41e0907c MS |
147 | |
148 | /* | |
149 | * Create a self-signed certificate using the public/private key pair... | |
150 | */ | |
151 | ||
152 | CFIndex usageInt = kSecKeyUsageAll; | |
558883c6 MS |
153 | CFNumberRef usage = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &usageInt); |
154 | CFIndex lenInt = 0; | |
155 | CFNumberRef len = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &lenInt); | |
fc4bbb58 MS |
156 | CFTypeRef certKeys[] = { kSecCSRBasicContraintsPathLen, kSecSubjectAltName, kSecCertificateKeyUsage }; |
157 | CFTypeRef certValues[] = { len, cfcommon_name, usage }; | |
158 | CFDictionaryRef certParams = CFDictionaryCreate(kCFAllocatorDefault, certKeys, certValues, sizeof(certKeys) / sizeof(certKeys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); | |
41e0907c | 159 | CFRelease(usage); |
558883c6 | 160 | CFRelease(len); |
41e0907c MS |
161 | |
162 | const void *ca_o[] = { kSecOidOrganization, CFSTR("") }; | |
163 | const void *ca_cn[] = { kSecOidCommonName, cfcommon_name }; | |
164 | CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL); | |
165 | CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL); | |
166 | const void *ca_dn_array[2]; | |
167 | ||
168 | ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL); | |
169 | ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL); | |
170 | ||
171 | CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL); | |
fc4bbb58 | 172 | |
558883c6 | 173 | cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey); |
fc4bbb58 | 174 | |
41e0907c MS |
175 | CFRelease(subject); |
176 | CFRelease(certParams); | |
177 | ||
178 | if (!cert) | |
2274d26b MS |
179 | { |
180 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create self-signed certificate."); | |
41e0907c | 181 | goto cleanup; |
2274d26b | 182 | } |
41e0907c MS |
183 | |
184 | ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey); | |
185 | ||
186 | if (ident) | |
fc4bbb58 | 187 | { |
2274d26b MS |
188 | _cupsMutexLock(&tls_mutex); |
189 | ||
190 | if (tls_selfsigned) | |
191 | CFRelease(ident); | |
192 | else | |
193 | tls_selfsigned = ident; | |
194 | ||
195 | _cupsMutexLock(&tls_mutex); | |
196 | ||
197 | # if 0 /* Someday perhaps SecItemCopyMatching will work for identities, at which point */ | |
fc4bbb58 MS |
198 | CFTypeRef itemKeys[] = { kSecClass, kSecAttrLabel, kSecValueRef }; |
199 | CFTypeRef itemValues[] = { kSecClassIdentity, cfcommon_name, ident }; | |
200 | CFDictionaryRef itemAttrs = CFDictionaryCreate(kCFAllocatorDefault, itemKeys, itemValues, sizeof(itemKeys) / sizeof(itemKeys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); | |
201 | ||
202 | err = SecItemAdd(itemAttrs, NULL); | |
e34d1ec4 | 203 | /* SecItemAdd consumes itemAttrs... */ |
fc4bbb58 | 204 | |
2274d26b MS |
205 | CFRelease(ident); |
206 | ||
fc4bbb58 | 207 | if (err != noErr) |
2274d26b MS |
208 | { |
209 | DEBUG_printf(("1cupsMakeServerCredentials: Unable to add identity to keychain: %d.", (int)err)); | |
fc4bbb58 | 210 | goto cleanup; |
2274d26b MS |
211 | } |
212 | # endif /* 0 */ | |
fc4bbb58 | 213 | |
41e0907c | 214 | status = 1; |
fc4bbb58 | 215 | } |
2274d26b MS |
216 | else |
217 | DEBUG_puts("1cupsMakeServerCredentials: Unable to create identity from cert and keys."); | |
41e0907c MS |
218 | |
219 | /* | |
220 | * Cleanup and return... | |
221 | */ | |
222 | ||
223 | cleanup: | |
224 | ||
225 | if (cfcommon_name) | |
226 | CFRelease(cfcommon_name); | |
227 | ||
228 | if (keyParams) | |
229 | CFRelease(keyParams); | |
230 | ||
41e0907c MS |
231 | if (cert) |
232 | CFRelease(cert); | |
233 | ||
234 | if (publicKey) | |
235 | CFRelease(publicKey); | |
236 | ||
237 | if (privateKey) | |
2274d26b MS |
238 | CFRelease(privateKey); |
239 | ||
240 | DEBUG_printf(("1cupsMakeServerCredentials: Returning %d.", status)); | |
41e0907c MS |
241 | |
242 | return (status); | |
243 | ||
fc4bbb58 | 244 | #else /* !HAVE_SECGENERATESELFSIGNEDCERTIFICATE */ |
41e0907c | 245 | int pid, /* Process ID of command */ |
7d58a105 MS |
246 | status, /* Status of command */ |
247 | i; /* Looping var */ | |
41e0907c | 248 | char command[1024], /* Command */ |
724f2615 | 249 | *argv[5], /* Command-line arguments */ |
7d58a105 MS |
250 | *envp[1000], /* Environment variables */ |
251 | days[32], /* CERTTOOL_EXPIRATION_DAYS env var */ | |
41e0907c | 252 | keychain[1024], /* Keychain argument */ |
f93b32b6 MS |
253 | infofile[1024], /* Type-in information for cert */ |
254 | filename[1024]; /* Default keychain path */ | |
41e0907c MS |
255 | cups_file_t *fp; /* Seed/info file */ |
256 | ||
257 | ||
807315e6 | 258 | 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 | 259 | |
41e0907c MS |
260 | (void)num_alt_names; |
261 | (void)alt_names; | |
41e0907c | 262 | |
f93b32b6 | 263 | if (!path) |
005f7f1f | 264 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 265 | |
41e0907c MS |
266 | /* |
267 | * Run the "certtool" command to generate a self-signed certificate... | |
268 | */ | |
269 | ||
270 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
271 | return (-1); | |
272 | ||
273 | /* | |
274 | * Create a file with the certificate information fields... | |
275 | * | |
276 | * Note: This assumes that the default questions are asked by the certtool | |
277 | * command... | |
278 | */ | |
279 | ||
280 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
281 | return (-1); | |
282 | ||
283 | cupsFilePrintf(fp, | |
284 | "CUPS Self-Signed Certificate\n" | |
285 | /* Enter key and certificate label */ | |
724f2615 | 286 | "r\n" /* Generate RSA key pair */ |
1ae693e3 | 287 | "2048\n" /* 2048 bit encryption key */ |
41e0907c MS |
288 | "y\n" /* OK (y = yes) */ |
289 | "b\n" /* Usage (b=signing/encryption) */ | |
1ae693e3 | 290 | "2\n" /* Sign with SHA256 */ |
41e0907c MS |
291 | "y\n" /* OK (y = yes) */ |
292 | "%s\n" /* Common name */ | |
293 | "\n" /* Country (default) */ | |
294 | "\n" /* Organization (default) */ | |
295 | "\n" /* Organizational unit (default) */ | |
296 | "\n" /* State/Province (default) */ | |
297 | "\n" /* Email address */ | |
298 | "y\n", /* OK (y = yes) */ | |
299 | common_name); | |
300 | cupsFileClose(fp); | |
301 | ||
302 | snprintf(keychain, sizeof(keychain), "k=%s", path); | |
303 | ||
304 | argv[0] = "certtool"; | |
305 | argv[1] = "c"; | |
306 | argv[2] = keychain; | |
307 | argv[3] = NULL; | |
308 | ||
7d58a105 MS |
309 | snprintf(days, sizeof(days), "CERTTOOL_EXPIRATION_DAYS=%d", (int)((expiration_date - time(NULL) + 86399) / 86400)); |
310 | envp[0] = days; | |
311 | for (i = 0; i < (int)(sizeof(envp) / sizeof(envp[0]) - 2) && environ[i]; i ++) | |
312 | envp[i + 1] = environ[i]; | |
313 | envp[i] = NULL; | |
314 | ||
41e0907c MS |
315 | posix_spawn_file_actions_t actions; /* File actions */ |
316 | ||
317 | posix_spawn_file_actions_init(&actions); | |
318 | posix_spawn_file_actions_addclose(&actions, 0); | |
319 | posix_spawn_file_actions_addopen(&actions, 0, infofile, O_RDONLY, 0); | |
f93b32b6 MS |
320 | posix_spawn_file_actions_addclose(&actions, 1); |
321 | posix_spawn_file_actions_addopen(&actions, 1, "/dev/null", O_WRONLY, 0); | |
322 | posix_spawn_file_actions_addclose(&actions, 2); | |
323 | posix_spawn_file_actions_addopen(&actions, 2, "/dev/null", O_WRONLY, 0); | |
41e0907c | 324 | |
7d58a105 | 325 | if (posix_spawn(&pid, command, &actions, NULL, argv, envp)) |
41e0907c MS |
326 | { |
327 | unlink(infofile); | |
328 | return (-1); | |
329 | } | |
330 | ||
331 | posix_spawn_file_actions_destroy(&actions); | |
332 | ||
333 | unlink(infofile); | |
334 | ||
335 | while (waitpid(pid, &status, 0) < 0) | |
336 | if (errno != EINTR) | |
337 | { | |
338 | status = -1; | |
339 | break; | |
340 | } | |
341 | ||
342 | return (!status); | |
eb66bc71 | 343 | #endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
344 | } |
345 | ||
346 | ||
347 | /* | |
348 | * 'cupsSetServerCredentials()' - Set the default server credentials. | |
349 | * | |
350 | * Note: The server credentials are used by all threads in the running process. | |
351 | * This function is threadsafe. | |
352 | * | |
8072030b | 353 | * @since CUPS 2.0/macOS 10.10@ |
3af9ac9e MS |
354 | */ |
355 | ||
356 | int /* O - 1 on success, 0 on failure */ | |
357 | cupsSetServerCredentials( | |
f93b32b6 | 358 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
359 | const char *common_name, /* I - Default common name for server */ |
360 | int auto_create) /* I - 1 = automatically create self-signed certificates */ | |
361 | { | |
a27a134a MS |
362 | DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create)); |
363 | ||
eb66bc71 | 364 | #ifdef HAVE_SECKEYCHAINOPEN |
4daf7e97 MS |
365 | char filename[1024]; /* Keychain filename */ |
366 | SecKeychainRef keychain = http_cdsa_open_keychain(path, filename, sizeof(filename)); | |
c0459938 | 367 | |
4daf7e97 | 368 | if (!keychain) |
c0459938 | 369 | { |
4daf7e97 | 370 | DEBUG_puts("1cupsSetServerCredentials: Unable to open keychain."); |
c0459938 MS |
371 | return (0); |
372 | } | |
373 | ||
374 | _cupsMutexLock(&tls_mutex); | |
375 | ||
376 | /* | |
377 | * Close any keychain that is currently open... | |
378 | */ | |
379 | ||
380 | if (tls_keychain) | |
381 | CFRelease(tls_keychain); | |
382 | ||
41e0907c MS |
383 | if (tls_keypath) |
384 | _cupsStrFree(tls_keypath); | |
385 | ||
c0459938 MS |
386 | if (tls_common_name) |
387 | _cupsStrFree(tls_common_name); | |
388 | ||
389 | /* | |
390 | * Save the new keychain... | |
391 | */ | |
392 | ||
393 | tls_keychain = keychain; | |
4daf7e97 | 394 | tls_keypath = _cupsStrAlloc(filename); |
c0459938 MS |
395 | tls_auto_create = auto_create; |
396 | tls_common_name = _cupsStrAlloc(common_name); | |
397 | ||
398 | _cupsMutexUnlock(&tls_mutex); | |
399 | ||
a27a134a | 400 | DEBUG_puts("1cupsSetServerCredentials: Opened keychain, returning 1."); |
c0459938 | 401 | return (1); |
eb66bc71 MS |
402 | |
403 | #else | |
fc4bbb58 MS |
404 | if (path) |
405 | { | |
406 | DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0."); | |
407 | return (0); | |
408 | } | |
409 | ||
410 | tls_auto_create = auto_create; | |
411 | tls_common_name = _cupsStrAlloc(common_name); | |
412 | ||
413 | return (1); | |
eb66bc71 | 414 | #endif /* HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
415 | } |
416 | ||
2c85b752 MS |
417 | |
418 | /* | |
419 | * 'httpCopyCredentials()' - Copy the credentials associated with the peer in | |
420 | * an encrypted connection. | |
421 | * | |
8072030b | 422 | * @since CUPS 1.5/macOS 10.7@ |
2c85b752 MS |
423 | */ |
424 | ||
425 | int /* O - Status of call (0 = success) */ | |
426 | httpCopyCredentials( | |
427 | http_t *http, /* I - Connection to server */ | |
428 | cups_array_t **credentials) /* O - Array of credentials */ | |
429 | { | |
430 | OSStatus error; /* Error code */ | |
431 | SecTrustRef peerTrust; /* Peer trust reference */ | |
432 | CFIndex count; /* Number of credentials */ | |
433 | SecCertificateRef secCert; /* Certificate reference */ | |
434 | CFDataRef data; /* Certificate data */ | |
435 | int i; /* Looping var */ | |
436 | ||
437 | ||
807315e6 | 438 | DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", (void *)http, (void *)credentials)); |
376d7c69 | 439 | |
2c85b752 MS |
440 | if (credentials) |
441 | *credentials = NULL; | |
442 | ||
443 | if (!http || !http->tls || !credentials) | |
444 | return (-1); | |
445 | ||
446 | if (!(error = SSLCopyPeerTrust(http->tls, &peerTrust)) && peerTrust) | |
447 | { | |
376d7c69 MS |
448 | DEBUG_printf(("2httpCopyCredentials: Peer provided %d certificates.", (int)SecTrustGetCertificateCount(peerTrust))); |
449 | ||
2c85b752 MS |
450 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) |
451 | { | |
452 | count = SecTrustGetCertificateCount(peerTrust); | |
453 | ||
454 | for (i = 0; i < count; i ++) | |
455 | { | |
456 | secCert = SecTrustGetCertificateAtIndex(peerTrust, i); | |
376d7c69 MS |
457 | |
458 | #ifdef DEBUG | |
459 | CFStringRef cf_name = SecCertificateCopySubjectSummary(secCert); | |
460 | char name[1024]; | |
461 | if (cf_name) | |
462 | CFStringGetCString(cf_name, name, sizeof(name), kCFStringEncodingUTF8); | |
463 | else | |
464 | strlcpy(name, "unknown", sizeof(name)); | |
465 | ||
466 | DEBUG_printf(("2httpCopyCredentials: Certificate %d name is \"%s\".", i, name)); | |
467 | #endif /* DEBUG */ | |
468 | ||
88f1e9c8 | 469 | if ((data = SecCertificateCopyData(secCert)) != NULL) |
2c85b752 | 470 | { |
376d7c69 MS |
471 | DEBUG_printf(("2httpCopyCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); |
472 | ||
7e86f2f6 | 473 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); |
2c85b752 MS |
474 | CFRelease(data); |
475 | } | |
476 | } | |
477 | } | |
478 | ||
479 | CFRelease(peerTrust); | |
480 | } | |
481 | ||
482 | return (error); | |
483 | } | |
484 | ||
485 | ||
486 | /* | |
487 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
488 | */ | |
489 | ||
490 | http_tls_credentials_t /* O - Internal credentials */ | |
491 | _httpCreateCredentials( | |
492 | cups_array_t *credentials) /* I - Array of credentials */ | |
493 | { | |
494 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
495 | SecCertificateRef secCert; /* Certificate reference */ | |
2c85b752 MS |
496 | http_credential_t *credential; /* Credential data */ |
497 | ||
498 | ||
499 | if (!credentials) | |
500 | return (NULL); | |
501 | ||
502 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
503 | cupsArrayCount(credentials), | |
504 | &kCFTypeArrayCallBacks)) == NULL) | |
505 | return (NULL); | |
506 | ||
507 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
508 | credential; | |
509 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
510 | { | |
9653cfdf | 511 | if ((secCert = http_cdsa_create_credential(credential)) != NULL) |
2c85b752 | 512 | { |
9653cfdf MS |
513 | CFArrayAppendValue(peerCerts, secCert); |
514 | CFRelease(secCert); | |
2c85b752 MS |
515 | } |
516 | } | |
517 | ||
518 | return (peerCerts); | |
519 | } | |
520 | ||
521 | ||
3af9ac9e | 522 | /* |
524c65e6 | 523 | * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name. |
3af9ac9e | 524 | * |
8072030b | 525 | * @since CUPS 2.0/macOS 10.10@ |
3af9ac9e MS |
526 | */ |
527 | ||
524c65e6 MS |
528 | int /* O - 1 if valid, 0 otherwise */ |
529 | httpCredentialsAreValidForName( | |
530 | cups_array_t *credentials, /* I - Credentials */ | |
531 | const char *common_name) /* I - Name to check */ | |
532 | { | |
533 | SecCertificateRef secCert; /* Certificate reference */ | |
534 | CFStringRef cfcert_name = NULL; | |
535 | /* Certificate's common name (CF string) */ | |
536 | char cert_name[256]; /* Certificate's common name (C string) */ | |
537 | int valid = 1; /* Valid name? */ | |
538 | ||
539 | ||
540 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
541 | return (0); | |
542 | ||
543 | /* | |
544 | * Compare the common names... | |
545 | */ | |
546 | ||
547 | if ((cfcert_name = SecCertificateCopySubjectSummary(secCert)) == NULL) | |
548 | { | |
549 | /* | |
550 | * Can't get common name, cannot be valid... | |
551 | */ | |
552 | ||
553 | valid = 0; | |
554 | } | |
555 | else if (CFStringGetCString(cfcert_name, cert_name, sizeof(cert_name), kCFStringEncodingUTF8) && | |
556 | _cups_strcasecmp(common_name, cert_name)) | |
557 | { | |
558 | /* | |
559 | * Not an exact match for the common name, check for wildcard certs... | |
560 | */ | |
561 | ||
562 | const char *domain = strchr(common_name, '.'); | |
563 | /* Domain in common name */ | |
564 | ||
565 | if (strncmp(cert_name, "*.", 2) || !domain || _cups_strcasecmp(domain, cert_name + 1)) | |
566 | { | |
567 | /* | |
568 | * Not a wildcard match. | |
569 | */ | |
570 | ||
571 | /* TODO: Check subject alternate names */ | |
572 | valid = 0; | |
573 | } | |
574 | } | |
575 | ||
576 | if (cfcert_name) | |
577 | CFRelease(cfcert_name); | |
578 | ||
579 | CFRelease(secCert); | |
580 | ||
581 | return (valid); | |
582 | } | |
583 | ||
584 | ||
585 | /* | |
586 | * 'httpCredentialsGetTrust()' - Return the trust of credentials. | |
587 | * | |
8072030b | 588 | * @since CUPS 2.0/macOS 10.10@ |
524c65e6 MS |
589 | */ |
590 | ||
591 | http_trust_t /* O - Level of trust */ | |
592 | httpCredentialsGetTrust( | |
376d7c69 MS |
593 | cups_array_t *credentials, /* I - Credentials */ |
594 | const char *common_name) /* I - Common name for trust lookup */ | |
3af9ac9e | 595 | { |
9653cfdf | 596 | SecCertificateRef secCert; /* Certificate reference */ |
524c65e6 MS |
597 | http_trust_t trust = HTTP_TRUST_OK; |
598 | /* Trusted? */ | |
376d7c69 | 599 | cups_array_t *tcreds = NULL; /* Trusted credentials */ |
9653cfdf MS |
600 | _cups_globals_t *cg = _cupsGlobals(); |
601 | /* Per-thread globals */ | |
3af9ac9e | 602 | |
9653cfdf | 603 | |
376d7c69 | 604 | if (!common_name) |
7aeb3615 MS |
605 | { |
606 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No common name specified."), 1); | |
524c65e6 | 607 | return (HTTP_TRUST_UNKNOWN); |
7aeb3615 | 608 | } |
376d7c69 | 609 | |
9653cfdf | 610 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
7aeb3615 MS |
611 | { |
612 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create credentials from array."), 1); | |
524c65e6 | 613 | return (HTTP_TRUST_UNKNOWN); |
7aeb3615 | 614 | } |
9653cfdf | 615 | |
3abb875b MS |
616 | if (cg->any_root < 0) |
617 | _cupsSetDefaults(); | |
618 | ||
376d7c69 | 619 | /* |
88f1e9c8 | 620 | * Look this common name up in the default keychains... |
376d7c69 MS |
621 | */ |
622 | ||
88f1e9c8 | 623 | httpLoadCredentials(NULL, &tcreds, common_name); |
376d7c69 MS |
624 | |
625 | if (tcreds) | |
626 | { | |
627 | char credentials_str[1024], /* String for incoming credentials */ | |
628 | tcreds_str[1024]; /* String for saved credentials */ | |
629 | ||
630 | httpCredentialsString(credentials, credentials_str, sizeof(credentials_str)); | |
631 | httpCredentialsString(tcreds, tcreds_str, sizeof(tcreds_str)); | |
632 | ||
633 | if (strcmp(credentials_str, tcreds_str)) | |
634 | { | |
635 | /* | |
636 | * Credentials don't match, let's look at the expiration date of the new | |
637 | * credentials and allow if the new ones have a later expiration... | |
638 | */ | |
639 | ||
08d56b1f MS |
640 | if (!cg->trust_first) |
641 | { | |
642 | /* | |
643 | * Do not trust certificates on first use... | |
644 | */ | |
645 | ||
7aeb3615 MS |
646 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Trust on first use is disabled."), 1); |
647 | ||
08d56b1f MS |
648 | trust = HTTP_TRUST_INVALID; |
649 | } | |
7aeb3615 | 650 | else if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds)) |
376d7c69 MS |
651 | { |
652 | /* | |
7aeb3615 | 653 | * The new credentials are not newly issued... |
376d7c69 MS |
654 | */ |
655 | ||
7aeb3615 MS |
656 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("New credentials are older than stored credentials."), 1); |
657 | ||
658 | trust = HTTP_TRUST_INVALID; | |
659 | } | |
660 | else if (!httpCredentialsAreValidForName(credentials, common_name)) | |
661 | { | |
662 | /* | |
663 | * The common name does not match the issued certificate... | |
664 | */ | |
665 | ||
666 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("New credentials are not valid for name."), 1); | |
667 | ||
524c65e6 | 668 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 669 | } |
524c65e6 | 670 | else if (httpCredentialsGetExpiration(tcreds) < time(NULL)) |
376d7c69 MS |
671 | { |
672 | /* | |
524c65e6 | 673 | * Save the renewed credentials... |
376d7c69 MS |
674 | */ |
675 | ||
524c65e6 MS |
676 | trust = HTTP_TRUST_RENEWED; |
677 | ||
678 | httpSaveCredentials(NULL, credentials, common_name); | |
376d7c69 MS |
679 | } |
680 | } | |
681 | ||
682 | httpFreeCredentials(tcreds); | |
683 | } | |
f51f3773 | 684 | else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name)) |
7aeb3615 MS |
685 | { |
686 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No stored credentials, not valid for name."), 1); | |
524c65e6 | 687 | trust = HTTP_TRUST_INVALID; |
7aeb3615 MS |
688 | } |
689 | else if (!cg->trust_first) | |
690 | { | |
f8e19681 MS |
691 | /* |
692 | * See if we have a site CA certificate we can compare... | |
693 | */ | |
694 | ||
695 | if (!httpLoadCredentials(NULL, &tcreds, "site")) | |
696 | { | |
697 | if (cupsArrayCount(credentials) != (cupsArrayCount(tcreds) + 1)) | |
698 | { | |
699 | /* | |
700 | * Certificate isn't directly generated from the CA cert... | |
701 | */ | |
702 | ||
703 | trust = HTTP_TRUST_INVALID; | |
704 | } | |
705 | else | |
706 | { | |
707 | /* | |
708 | * Do a tail comparison of the two certificates... | |
709 | */ | |
710 | ||
711 | http_credential_t *a, *b; /* Certificates */ | |
712 | ||
713 | for (a = (http_credential_t *)cupsArrayFirst(tcreds), b = (http_credential_t *)cupsArrayIndex(credentials, 1); | |
714 | a && b; | |
715 | a = (http_credential_t *)cupsArrayNext(tcreds), b = (http_credential_t *)cupsArrayNext(credentials)) | |
716 | if (a->datalen != b->datalen || memcmp(a->data, b->data, a->datalen)) | |
717 | break; | |
718 | ||
719 | if (a || b) | |
720 | trust = HTTP_TRUST_INVALID; | |
721 | } | |
722 | ||
723 | if (trust != HTTP_TRUST_OK) | |
724 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Credentials do not validate against site CA certificate."), 1); | |
725 | } | |
726 | else | |
727 | { | |
728 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Trust on first use is disabled."), 1); | |
729 | trust = HTTP_TRUST_INVALID; | |
730 | } | |
7aeb3615 | 731 | } |
376d7c69 | 732 | |
7aeb3615 MS |
733 | if (trust == HTTP_TRUST_OK && !cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent())) |
734 | { | |
735 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Credentials have expired."), 1); | |
524c65e6 | 736 | trust = HTTP_TRUST_EXPIRED; |
7aeb3615 MS |
737 | } |
738 | ||
739 | if (trust == HTTP_TRUST_OK && !cg->any_root && cupsArrayCount(credentials) == 1) | |
740 | { | |
741 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Self-signed credentials are blocked."), 1); | |
08d56b1f | 742 | trust = HTTP_TRUST_INVALID; |
7aeb3615 | 743 | } |
376d7c69 | 744 | |
9653cfdf MS |
745 | CFRelease(secCert); |
746 | ||
524c65e6 | 747 | return (trust); |
3af9ac9e MS |
748 | } |
749 | ||
750 | ||
751 | /* | |
752 | * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials. | |
753 | * | |
8072030b | 754 | * @since CUPS 2.0/macOS 10.10@ |
3af9ac9e MS |
755 | */ |
756 | ||
757 | time_t /* O - Expiration date of credentials */ | |
758 | httpCredentialsGetExpiration( | |
759 | cups_array_t *credentials) /* I - Credentials */ | |
760 | { | |
9653cfdf MS |
761 | SecCertificateRef secCert; /* Certificate reference */ |
762 | time_t expiration; /* Expiration date */ | |
3af9ac9e | 763 | |
9653cfdf MS |
764 | |
765 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
766 | return (0); | |
767 | ||
376d7c69 | 768 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); |
9653cfdf MS |
769 | |
770 | CFRelease(secCert); | |
771 | ||
772 | return (expiration); | |
3af9ac9e MS |
773 | } |
774 | ||
775 | ||
72d05bc9 MS |
776 | /* |
777 | * 'httpCredentialsString()' - Return a string representing the credentials. | |
778 | * | |
8072030b | 779 | * @since CUPS 2.0/macOS 10.10@ |
72d05bc9 MS |
780 | */ |
781 | ||
782 | size_t /* O - Total size of credentials string */ | |
783 | httpCredentialsString( | |
784 | cups_array_t *credentials, /* I - Credentials */ | |
785 | char *buffer, /* I - Buffer or @code NULL@ */ | |
786 | size_t bufsize) /* I - Size of buffer */ | |
787 | { | |
376d7c69 | 788 | http_credential_t *first; /* First certificate */ |
9653cfdf | 789 | SecCertificateRef secCert; /* Certificate reference */ |
9653cfdf MS |
790 | |
791 | ||
807315e6 | 792 | DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", (void *)credentials, (void *)buffer, CUPS_LLCAST bufsize)); |
376d7c69 | 793 | |
9653cfdf MS |
794 | if (!buffer) |
795 | return (0); | |
72d05bc9 MS |
796 | |
797 | if (buffer && bufsize > 0) | |
798 | *buffer = '\0'; | |
799 | ||
376d7c69 MS |
800 | if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL && |
801 | (secCert = http_cdsa_create_credential(first)) != NULL) | |
9653cfdf | 802 | { |
376d7c69 MS |
803 | CFStringRef cf_name; /* CF common name string */ |
804 | char name[256]; /* Common name associated with cert */ | |
805 | time_t expiration; /* Expiration date of cert */ | |
376d7c69 MS |
806 | unsigned char md5_digest[16]; /* MD5 result */ |
807 | ||
808 | if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL) | |
9653cfdf | 809 | { |
376d7c69 MS |
810 | CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8); |
811 | CFRelease(cf_name); | |
9653cfdf | 812 | } |
376d7c69 MS |
813 | else |
814 | strlcpy(name, "unknown", sizeof(name)); | |
815 | ||
816 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); | |
817 | ||
7ec11630 | 818 | cupsHashData("md5", first->data, first->datalen, md5_digest, sizeof(md5_digest)); |
376d7c69 MS |
819 | |
820 | 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 |
821 | |
822 | CFRelease(secCert); | |
823 | } | |
824 | ||
376d7c69 MS |
825 | DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer)); |
826 | ||
9653cfdf | 827 | return (strlen(buffer)); |
72d05bc9 MS |
828 | } |
829 | ||
830 | ||
2c85b752 MS |
831 | /* |
832 | * '_httpFreeCredentials()' - Free internal credentials. | |
833 | */ | |
834 | ||
835 | void | |
836 | _httpFreeCredentials( | |
837 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
838 | { | |
839 | if (!credentials) | |
840 | return; | |
841 | ||
842 | CFRelease(credentials); | |
843 | } | |
844 | ||
845 | ||
72d05bc9 MS |
846 | /* |
847 | * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file. | |
848 | * | |
e1f19878 | 849 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
850 | */ |
851 | ||
dafebafd | 852 | int /* O - 0 on success, -1 on error */ |
72d05bc9 | 853 | httpLoadCredentials( |
f93b32b6 | 854 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
855 | cups_array_t **credentials, /* IO - Credentials */ |
856 | const char *common_name) /* I - Common name for credentials */ | |
857 | { | |
dafebafd | 858 | OSStatus err; /* Error info */ |
fc4bbb58 | 859 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 860 | char filename[1024]; /* Filename for keychain */ |
4daf7e97 MS |
861 | SecKeychainRef keychain = NULL,/* Keychain reference */ |
862 | syschain = NULL;/* System keychain */ | |
fc4bbb58 MS |
863 | CFArrayRef list; /* Keychain list */ |
864 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 MS |
865 | SecCertificateRef cert = NULL; /* Certificate */ |
866 | CFDataRef data; /* Certificate data */ | |
dafebafd MS |
867 | SecPolicyRef policy = NULL; /* Policy ref */ |
868 | CFStringRef cfcommon_name = NULL; | |
869 | /* Server name */ | |
870 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
dafebafd MS |
871 | |
872 | ||
807315e6 | 873 | DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name)); |
88f1e9c8 MS |
874 | |
875 | if (!credentials) | |
876 | return (-1); | |
877 | ||
878 | *credentials = NULL; | |
879 | ||
fc4bbb58 | 880 | #ifdef HAVE_SECKEYCHAINOPEN |
4daf7e97 | 881 | keychain = http_cdsa_open_keychain(path, filename, sizeof(filename)); |
88f1e9c8 | 882 | |
4daf7e97 | 883 | if (!keychain) |
dafebafd MS |
884 | goto cleanup; |
885 | ||
4daf7e97 MS |
886 | syschain = http_cdsa_open_system_keychain(); |
887 | ||
fc4bbb58 MS |
888 | #else |
889 | if (path) | |
890 | return (-1); | |
891 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
892 | ||
dafebafd MS |
893 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
894 | ||
895 | policy = SecPolicyCreateSSL(1, cfcommon_name); | |
896 | ||
897 | if (cfcommon_name) | |
898 | CFRelease(cfcommon_name); | |
899 | ||
900 | if (!policy) | |
901 | goto cleanup; | |
902 | ||
903 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
904 | goto cleanup; | |
905 | ||
88f1e9c8 | 906 | CFDictionaryAddValue(query, kSecClass, kSecClassCertificate); |
dafebafd MS |
907 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); |
908 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
909 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
dafebafd | 910 | |
fc4bbb58 | 911 | #ifdef HAVE_SECKEYCHAINOPEN |
4daf7e97 MS |
912 | if (syschain) |
913 | { | |
914 | const void *values[2] = { syschain, keychain }; | |
915 | ||
916 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)values, 2, &kCFTypeArrayCallBacks); | |
917 | } | |
918 | else | |
919 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks); | |
fc4bbb58 | 920 | CFDictionaryAddValue(query, kSecMatchSearchList, list); |
dafebafd | 921 | CFRelease(list); |
fc4bbb58 | 922 | #endif /* HAVE_SECKEYCHAINOPEN */ |
dafebafd | 923 | |
88f1e9c8 | 924 | err = SecItemCopyMatching(query, (CFTypeRef *)&cert); |
dafebafd MS |
925 | |
926 | if (err) | |
927 | goto cleanup; | |
928 | ||
88f1e9c8 | 929 | if (CFGetTypeID(cert) != SecCertificateGetTypeID()) |
dafebafd MS |
930 | goto cleanup; |
931 | ||
88f1e9c8 MS |
932 | if ((data = SecCertificateCopyData(cert)) != NULL) |
933 | { | |
934 | DEBUG_printf(("1httpLoadCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); | |
935 | ||
936 | *credentials = cupsArrayNew(NULL, NULL); | |
937 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); | |
938 | CFRelease(data); | |
939 | } | |
dafebafd MS |
940 | |
941 | cleanup : | |
942 | ||
fc4bbb58 | 943 | #ifdef HAVE_SECKEYCHAINOPEN |
dafebafd MS |
944 | if (keychain) |
945 | CFRelease(keychain); | |
4daf7e97 MS |
946 | |
947 | if (syschain) | |
948 | CFRelease(syschain); | |
fc4bbb58 | 949 | #endif /* HAVE_SECKEYCHAINOPEN */ |
88f1e9c8 MS |
950 | if (cert) |
951 | CFRelease(cert); | |
dafebafd MS |
952 | if (policy) |
953 | CFRelease(policy); | |
954 | if (query) | |
955 | CFRelease(query); | |
956 | ||
88f1e9c8 MS |
957 | DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1)); |
958 | ||
959 | return (*credentials ? 0 : -1); | |
72d05bc9 MS |
960 | } |
961 | ||
962 | ||
72d05bc9 MS |
963 | /* |
964 | * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file. | |
965 | * | |
e1f19878 | 966 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
967 | */ |
968 | ||
969 | int /* O - -1 on error, 0 on success */ | |
970 | httpSaveCredentials( | |
f93b32b6 | 971 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
972 | cups_array_t *credentials, /* I - Credentials */ |
973 | const char *common_name) /* I - Common name for credentials */ | |
974 | { | |
88f1e9c8 | 975 | int ret = -1; /* Return value */ |
41e0907c | 976 | OSStatus err; /* Error info */ |
fc4bbb58 | 977 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 MS |
978 | char filename[1024]; /* Filename for keychain */ |
979 | SecKeychainRef keychain = NULL;/* Keychain reference */ | |
fc4bbb58 MS |
980 | CFArrayRef list; /* Keychain list */ |
981 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 | 982 | SecCertificateRef cert = NULL; /* Certificate */ |
88f1e9c8 | 983 | CFMutableDictionaryRef attrs = NULL; /* Attributes for add */ |
41e0907c MS |
984 | |
985 | ||
807315e6 | 986 | DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name)); |
88f1e9c8 | 987 | if (!credentials) |
41e0907c MS |
988 | goto cleanup; |
989 | ||
524c65e6 MS |
990 | if (!httpCredentialsAreValidForName(credentials, common_name)) |
991 | { | |
992 | DEBUG_puts("1httpSaveCredentials: Common name does not match."); | |
993 | return (-1); | |
994 | } | |
995 | ||
88f1e9c8 MS |
996 | if ((cert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
997 | { | |
998 | DEBUG_puts("1httpSaveCredentials: Unable to create certificate."); | |
41e0907c | 999 | goto cleanup; |
88f1e9c8 | 1000 | } |
41e0907c | 1001 | |
fc4bbb58 | 1002 | #ifdef HAVE_SECKEYCHAINOPEN |
4daf7e97 | 1003 | keychain = http_cdsa_open_keychain(path, filename, sizeof(filename)); |
2c85b752 | 1004 | |
4daf7e97 | 1005 | if (!keychain) |
88f1e9c8 | 1006 | goto cleanup; |
2c85b752 | 1007 | |
fc4bbb58 MS |
1008 | #else |
1009 | if (path) | |
1010 | return (-1); | |
1011 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
88f1e9c8 | 1012 | |
88f1e9c8 MS |
1013 | if ((attrs = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL) |
1014 | { | |
1015 | DEBUG_puts("1httpSaveCredentials: Unable to create dictionary."); | |
1016 | goto cleanup; | |
2c85b752 MS |
1017 | } |
1018 | ||
88f1e9c8 | 1019 | CFDictionaryAddValue(attrs, kSecClass, kSecClassCertificate); |
88f1e9c8 | 1020 | CFDictionaryAddValue(attrs, kSecValueRef, cert); |
fc4bbb58 MS |
1021 | |
1022 | #ifdef HAVE_SECKEYCHAINOPEN | |
1023 | if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL) | |
1024 | { | |
1025 | DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains."); | |
1026 | goto cleanup; | |
1027 | } | |
88f1e9c8 | 1028 | CFDictionaryAddValue(attrs, kSecMatchSearchList, list); |
fc4bbb58 MS |
1029 | CFRelease(list); |
1030 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 | 1031 | |
88f1e9c8 | 1032 | /* Note: SecItemAdd consumes "attrs"... */ |
524c65e6 | 1033 | err = SecItemAdd(attrs, NULL); |
88f1e9c8 | 1034 | DEBUG_printf(("1httpSaveCredentials: SecItemAdd returned %d.", (int)err)); |
2c85b752 | 1035 | |
88f1e9c8 | 1036 | cleanup : |
2c85b752 | 1037 | |
fc4bbb58 | 1038 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 MS |
1039 | if (keychain) |
1040 | CFRelease(keychain); | |
fc4bbb58 | 1041 | #endif /* HAVE_SECKEYCHAINOPEN */ |
88f1e9c8 MS |
1042 | if (cert) |
1043 | CFRelease(cert); | |
2c85b752 | 1044 | |
88f1e9c8 | 1045 | DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret)); |
2c85b752 | 1046 | |
88f1e9c8 | 1047 | return (ret); |
2c85b752 MS |
1048 | } |
1049 | ||
1050 | ||
1051 | /* | |
25731360 | 1052 | * '_httpTLSInitialize()' - Initialize the TLS stack. |
2c85b752 MS |
1053 | */ |
1054 | ||
25731360 MS |
1055 | void |
1056 | _httpTLSInitialize(void) | |
2c85b752 MS |
1057 | { |
1058 | /* | |
1059 | * Nothing to do... | |
1060 | */ | |
1061 | } | |
1062 | ||
1063 | ||
1064 | /* | |
25731360 | 1065 | * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes. |
2c85b752 MS |
1066 | */ |
1067 | ||
25731360 MS |
1068 | size_t |
1069 | _httpTLSPending(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1070 | { |
1071 | size_t bytes; /* Bytes that are available */ | |
1072 | ||
1073 | ||
1074 | if (!SSLGetBufferedReadSize(http->tls, &bytes)) | |
1075 | return (bytes); | |
1076 | ||
1077 | return (0); | |
1078 | } | |
1079 | ||
1080 | ||
1081 | /* | |
25731360 | 1082 | * '_httpTLSRead()' - Read from a SSL/TLS connection. |
2c85b752 MS |
1083 | */ |
1084 | ||
25731360 MS |
1085 | int /* O - Bytes read */ |
1086 | _httpTLSRead(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1087 | char *buf, /* I - Buffer to store data */ |
1088 | int len) /* I - Length of buffer */ | |
1089 | { | |
1090 | int result; /* Return value */ | |
1091 | OSStatus error; /* Error info */ | |
1092 | size_t processed; /* Number of bytes processed */ | |
1093 | ||
1094 | ||
7e86f2f6 | 1095 | error = SSLRead(http->tls, buf, (size_t)len, &processed); |
25731360 | 1096 | DEBUG_printf(("6_httpTLSRead: error=%d, processed=%d", (int)error, |
2c85b752 MS |
1097 | (int)processed)); |
1098 | switch (error) | |
1099 | { | |
1100 | case 0 : | |
1101 | result = (int)processed; | |
1102 | break; | |
1103 | ||
1104 | case errSSLWouldBlock : | |
1105 | if (processed) | |
1106 | result = (int)processed; | |
1107 | else | |
1108 | { | |
1109 | result = -1; | |
1110 | errno = EINTR; | |
1111 | } | |
1112 | break; | |
1113 | ||
1114 | case errSSLClosedGraceful : | |
1115 | default : | |
1116 | if (processed) | |
1117 | result = (int)processed; | |
1118 | else | |
1119 | { | |
1120 | result = -1; | |
1121 | errno = EPIPE; | |
1122 | } | |
1123 | break; | |
1124 | } | |
1125 | ||
1126 | return (result); | |
1127 | } | |
1128 | ||
1129 | ||
63aefcd5 MS |
1130 | /* |
1131 | * '_httpTLSSetOptions()' - Set TLS protocol and cipher suite options. | |
1132 | */ | |
1133 | ||
1134 | void | |
8f1fbdec MS |
1135 | _httpTLSSetOptions(int options, /* I - Options */ |
1136 | int min_version, /* I - Minimum TLS version */ | |
1137 | int max_version) /* I - Maximum TLS version */ | |
63aefcd5 | 1138 | { |
02c88e67 | 1139 | if (!(options & _HTTP_TLS_SET_DEFAULT) || tls_options < 0) |
8f1fbdec MS |
1140 | { |
1141 | tls_options = options; | |
1142 | tls_min_version = min_version; | |
1143 | tls_max_version = max_version; | |
1144 | } | |
63aefcd5 MS |
1145 | } |
1146 | ||
1147 | ||
2c85b752 | 1148 | /* |
25731360 | 1149 | * '_httpTLSStart()' - Set up SSL/TLS support on a connection. |
2c85b752 MS |
1150 | */ |
1151 | ||
25731360 MS |
1152 | int /* O - 0 on success, -1 on failure */ |
1153 | _httpTLSStart(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1154 | { |
1155 | char hostname[256], /* Hostname */ | |
1156 | *hostptr; /* Pointer into hostname */ | |
1157 | _cups_globals_t *cg = _cupsGlobals(); | |
1158 | /* Pointer to library globals */ | |
1159 | OSStatus error; /* Error code */ | |
1160 | const char *message = NULL;/* Error message */ | |
1161 | cups_array_t *credentials; /* Credentials array */ | |
1162 | cups_array_t *names; /* CUPS distinguished names */ | |
1163 | CFArrayRef dn_array; /* CF distinguished names array */ | |
1164 | CFIndex count; /* Number of credentials */ | |
1165 | CFDataRef data; /* Certificate data */ | |
1166 | int i; /* Looping var */ | |
1167 | http_credential_t *credential; /* Credential data */ | |
1168 | ||
1169 | ||
807315e6 | 1170 | DEBUG_printf(("3_httpTLSStart(http=%p)", (void *)http)); |
b37d45d9 MS |
1171 | |
1172 | if (tls_options < 0) | |
1173 | { | |
1174 | DEBUG_puts("4_httpTLSStart: Setting defaults."); | |
1175 | _cupsSetDefaults(); | |
8f1fbdec | 1176 | DEBUG_printf(("4_httpTLSStart: tls_options=%x, tls_min_version=%d, tls_max_version=%d", tls_options, tls_min_version, tls_max_version)); |
b37d45d9 | 1177 | } |
2c85b752 | 1178 | |
c913d726 | 1179 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 1180 | if (http->mode == _HTTP_MODE_SERVER && !tls_keychain) |
2c85b752 | 1181 | { |
25731360 | 1182 | DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called."); |
41e0907c MS |
1183 | http->error = errno = EINVAL; |
1184 | http->status = HTTP_STATUS_ERROR; | |
1185 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Server credentials not set."), 1); | |
2c85b752 | 1186 | |
41e0907c | 1187 | return (-1); |
2c85b752 | 1188 | } |
2274d26b | 1189 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2c85b752 | 1190 | |
72d05bc9 | 1191 | if ((http->tls = SSLCreateContext(kCFAllocatorDefault, http->mode == _HTTP_MODE_CLIENT ? kSSLClientSide : kSSLServerSide, kSSLStreamType)) == NULL) |
2c85b752 | 1192 | { |
25731360 | 1193 | DEBUG_puts("4_httpTLSStart: SSLCreateContext failed."); |
2c85b752 MS |
1194 | http->error = errno = ENOMEM; |
1195 | http->status = HTTP_STATUS_ERROR; | |
1196 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
1197 | ||
1198 | return (-1); | |
1199 | } | |
1200 | ||
1201 | error = SSLSetConnection(http->tls, http); | |
25731360 | 1202 | DEBUG_printf(("4_httpTLSStart: SSLSetConnection, error=%d", (int)error)); |
2c85b752 MS |
1203 | |
1204 | if (!error) | |
1205 | { | |
1206 | error = SSLSetIOFuncs(http->tls, http_cdsa_read, http_cdsa_write); | |
25731360 | 1207 | DEBUG_printf(("4_httpTLSStart: SSLSetIOFuncs, error=%d", (int)error)); |
2c85b752 MS |
1208 | } |
1209 | ||
1210 | if (!error) | |
1211 | { | |
1212 | error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth, | |
1213 | true); | |
63aefcd5 MS |
1214 | DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", (int)error)); |
1215 | } | |
1216 | ||
1217 | if (!error) | |
1218 | { | |
8f1fbdec MS |
1219 | static const SSLProtocol protocols[] = /* Min/max protocol versions */ |
1220 | { | |
1221 | kSSLProtocol3, | |
1222 | kTLSProtocol1, | |
1223 | kTLSProtocol11, | |
1224 | kTLSProtocol12, | |
9661b112 MS |
1225 | kTLSProtocol12, /* TODO: update to 1.3 when 1.3 is supported */ |
1226 | kTLSProtocol12 /* TODO: update to 1.3 when 1.3 is supported */ | |
8f1fbdec MS |
1227 | }; |
1228 | ||
1229 | error = SSLSetProtocolVersionMin(http->tls, protocols[tls_min_version]); | |
1230 | DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMin(%d), error=%d", protocols[tls_min_version], (int)error)); | |
1231 | ||
1232 | if (!error) | |
4f272af7 | 1233 | { |
8f1fbdec MS |
1234 | error = SSLSetProtocolVersionMax(http->tls, protocols[tls_max_version]); |
1235 | DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMax(%d), error=%d", protocols[tls_max_version], (int)error)); | |
4f272af7 | 1236 | } |
63aefcd5 MS |
1237 | } |
1238 | ||
ee6226a5 | 1239 | # if HAVE_SSLSETENABLEDCIPHERS |
63aefcd5 MS |
1240 | if (!error) |
1241 | { | |
1242 | SSLCipherSuite supported[100]; /* Supported cipher suites */ | |
1243 | size_t num_supported; /* Number of supported cipher suites */ | |
1244 | SSLCipherSuite enabled[100]; /* Cipher suites to enable */ | |
1245 | size_t num_enabled; /* Number of cipher suites to enable */ | |
1246 | ||
1247 | num_supported = sizeof(supported) / sizeof(supported[0]); | |
1248 | error = SSLGetSupportedCiphers(http->tls, supported, &num_supported); | |
1249 | ||
1250 | if (!error) | |
1251 | { | |
1252 | DEBUG_printf(("4_httpTLSStart: %d cipher suites supported.", (int)num_supported)); | |
1253 | ||
1254 | for (i = 0, num_enabled = 0; i < (int)num_supported && num_enabled < (sizeof(enabled) / sizeof(enabled[0])); i ++) | |
1255 | { | |
1256 | switch (supported[i]) | |
1257 | { | |
1258 | /* Obviously insecure cipher suites that we never want to use */ | |
1259 | case SSL_NULL_WITH_NULL_NULL : | |
1260 | case SSL_RSA_WITH_NULL_MD5 : | |
1261 | case SSL_RSA_WITH_NULL_SHA : | |
1262 | case SSL_RSA_EXPORT_WITH_RC4_40_MD5 : | |
1263 | case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 : | |
1264 | case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1265 | case SSL_RSA_WITH_DES_CBC_SHA : | |
1266 | case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1267 | case SSL_DH_DSS_WITH_DES_CBC_SHA : | |
1268 | case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1269 | case SSL_DH_RSA_WITH_DES_CBC_SHA : | |
1270 | case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA : | |
1271 | case SSL_DHE_DSS_WITH_DES_CBC_SHA : | |
1272 | case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA : | |
1273 | case SSL_DHE_RSA_WITH_DES_CBC_SHA : | |
1274 | case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5 : | |
1275 | case SSL_DH_anon_WITH_RC4_128_MD5 : | |
1276 | case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA : | |
1277 | case SSL_DH_anon_WITH_DES_CBC_SHA : | |
1278 | case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA : | |
1279 | case SSL_FORTEZZA_DMS_WITH_NULL_SHA : | |
1280 | case TLS_DH_anon_WITH_AES_128_CBC_SHA : | |
1281 | case TLS_DH_anon_WITH_AES_256_CBC_SHA : | |
1282 | case TLS_ECDH_ECDSA_WITH_NULL_SHA : | |
1283 | case TLS_ECDHE_RSA_WITH_NULL_SHA : | |
1284 | case TLS_ECDH_anon_WITH_NULL_SHA : | |
1285 | case TLS_ECDH_anon_WITH_RC4_128_SHA : | |
1286 | case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA : | |
1287 | case TLS_ECDH_anon_WITH_AES_128_CBC_SHA : | |
1288 | case TLS_ECDH_anon_WITH_AES_256_CBC_SHA : | |
1289 | case TLS_RSA_WITH_NULL_SHA256 : | |
1290 | case TLS_DH_anon_WITH_AES_128_CBC_SHA256 : | |
1291 | case TLS_DH_anon_WITH_AES_256_CBC_SHA256 : | |
1292 | case TLS_PSK_WITH_NULL_SHA : | |
1293 | case TLS_DHE_PSK_WITH_NULL_SHA : | |
1294 | case TLS_RSA_PSK_WITH_NULL_SHA : | |
1295 | case TLS_DH_anon_WITH_AES_128_GCM_SHA256 : | |
1296 | case TLS_DH_anon_WITH_AES_256_GCM_SHA384 : | |
1297 | case TLS_PSK_WITH_NULL_SHA256 : | |
1298 | case TLS_PSK_WITH_NULL_SHA384 : | |
1299 | case TLS_DHE_PSK_WITH_NULL_SHA256 : | |
1300 | case TLS_DHE_PSK_WITH_NULL_SHA384 : | |
1301 | case TLS_RSA_PSK_WITH_NULL_SHA256 : | |
1302 | case TLS_RSA_PSK_WITH_NULL_SHA384 : | |
1303 | case SSL_RSA_WITH_DES_CBC_MD5 : | |
b37d45d9 | 1304 | DEBUG_printf(("4_httpTLSStart: Excluding insecure cipher suite %d", supported[i])); |
63aefcd5 MS |
1305 | break; |
1306 | ||
1307 | /* RC4 cipher suites that should only be used as a last resort */ | |
1308 | case SSL_RSA_WITH_RC4_128_MD5 : | |
1309 | case SSL_RSA_WITH_RC4_128_SHA : | |
1310 | case TLS_ECDH_ECDSA_WITH_RC4_128_SHA : | |
1311 | case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA : | |
1312 | case TLS_ECDH_RSA_WITH_RC4_128_SHA : | |
1313 | case TLS_ECDHE_RSA_WITH_RC4_128_SHA : | |
1314 | case TLS_PSK_WITH_RC4_128_SHA : | |
1315 | case TLS_DHE_PSK_WITH_RC4_128_SHA : | |
1316 | case TLS_RSA_PSK_WITH_RC4_128_SHA : | |
1317 | if (tls_options & _HTTP_TLS_ALLOW_RC4) | |
1318 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1319 | else |
1320 | DEBUG_printf(("4_httpTLSStart: Excluding RC4 cipher suite %d", supported[i])); | |
63aefcd5 MS |
1321 | break; |
1322 | ||
ee6226a5 MS |
1323 | /* DH/DHE cipher suites that are problematic with parameters < 1024 bits */ |
1324 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA : | |
1325 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA : | |
1326 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA : | |
1327 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA : | |
1328 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA : | |
1329 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA : | |
1330 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA : | |
1331 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA : | |
1332 | case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA : | |
1333 | case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA : | |
ee6226a5 MS |
1334 | case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA : |
1335 | case TLS_DH_DSS_WITH_AES_128_CBC_SHA256 : | |
1336 | case TLS_DH_RSA_WITH_AES_128_CBC_SHA256 : | |
1337 | case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 : | |
1338 | case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 : | |
1339 | case TLS_DH_DSS_WITH_AES_256_CBC_SHA256 : | |
1340 | case TLS_DH_RSA_WITH_AES_256_CBC_SHA256 : | |
1341 | case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 : | |
1342 | case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 : | |
1343 | case TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA : | |
1344 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA : | |
1345 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA : | |
f2e87147 MS |
1346 | case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 : |
1347 | case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 : | |
1348 | if (tls_options & _HTTP_TLS_DENY_CBC) | |
1349 | { | |
1350 | DEBUG_printf(("4_httpTLSStart: Excluding CBC cipher suite %d", supported[i])); | |
1351 | break; | |
1352 | } | |
1353 | ||
bdc4056c MS |
1354 | // case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 : |
1355 | // case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1356 | case TLS_DH_RSA_WITH_AES_128_GCM_SHA256 : |
1357 | case TLS_DH_RSA_WITH_AES_256_GCM_SHA384 : | |
bdc4056c MS |
1358 | // case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 : |
1359 | // case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1360 | case TLS_DH_DSS_WITH_AES_128_GCM_SHA256 : |
1361 | case TLS_DH_DSS_WITH_AES_256_GCM_SHA384 : | |
1362 | case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 : | |
1363 | case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 : | |
ee6226a5 MS |
1364 | if (tls_options & _HTTP_TLS_ALLOW_DH) |
1365 | enabled[num_enabled ++] = supported[i]; | |
b37d45d9 MS |
1366 | else |
1367 | DEBUG_printf(("4_httpTLSStart: Excluding DH/DHE cipher suite %d", supported[i])); | |
ee6226a5 MS |
1368 | break; |
1369 | ||
f2e87147 MS |
1370 | case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA : |
1371 | case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 : | |
1372 | case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 : | |
1373 | case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 : | |
1374 | case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 : | |
1375 | case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 : | |
1376 | case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 : | |
1377 | case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 : | |
1378 | case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 : | |
4f272af7 MS |
1379 | case TLS_RSA_WITH_3DES_EDE_CBC_SHA : |
1380 | case TLS_RSA_WITH_AES_128_CBC_SHA : | |
1381 | case TLS_RSA_WITH_AES_256_CBC_SHA : | |
f2e87147 MS |
1382 | if (tls_options & _HTTP_TLS_DENY_CBC) |
1383 | { | |
1384 | DEBUG_printf(("4_httpTLSStart: Excluding CBC cipher suite %d", supported[i])); | |
1385 | break; | |
1386 | } | |
1387 | ||
1388 | /* Anything else we'll assume is "secure" */ | |
63aefcd5 MS |
1389 | default : |
1390 | enabled[num_enabled ++] = supported[i]; | |
1391 | break; | |
1392 | } | |
1393 | } | |
1394 | ||
1395 | DEBUG_printf(("4_httpTLSStart: %d cipher suites enabled.", (int)num_enabled)); | |
1396 | error = SSLSetEnabledCiphers(http->tls, enabled, num_enabled); | |
1397 | } | |
2c85b752 | 1398 | } |
ee6226a5 | 1399 | #endif /* HAVE_SSLSETENABLEDCIPHERS */ |
2c85b752 | 1400 | |
41e0907c | 1401 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1402 | { |
41e0907c MS |
1403 | /* |
1404 | * Client: set client-side credentials, if any... | |
1405 | */ | |
1406 | ||
2c85b752 MS |
1407 | if (cg->client_cert_cb) |
1408 | { | |
1409 | error = SSLSetSessionOption(http->tls, | |
1410 | kSSLSessionOptionBreakOnCertRequested, true); | |
25731360 | 1411 | DEBUG_printf(("4_httpTLSStart: kSSLSessionOptionBreakOnCertRequested, " |
2c85b752 MS |
1412 | "error=%d", (int)error)); |
1413 | } | |
1414 | else | |
1415 | { | |
88f1e9c8 MS |
1416 | error = http_cdsa_set_credentials(http); |
1417 | DEBUG_printf(("4_httpTLSStart: http_cdsa_set_credentials, error=%d", | |
2c85b752 MS |
1418 | (int)error)); |
1419 | } | |
1420 | } | |
41e0907c MS |
1421 | else if (!error) |
1422 | { | |
1423 | /* | |
1424 | * Server: find/create a certificate for TLS... | |
1425 | */ | |
1426 | ||
378eeedf | 1427 | if (http->fields[HTTP_FIELD_HOST]) |
41e0907c MS |
1428 | { |
1429 | /* | |
1430 | * Use hostname for TLS upgrade... | |
1431 | */ | |
1432 | ||
1433 | strlcpy(hostname, http->fields[HTTP_FIELD_HOST], sizeof(hostname)); | |
1434 | } | |
1435 | else | |
1436 | { | |
1437 | /* | |
1438 | * Resolve hostname from connection address... | |
1439 | */ | |
1440 | ||
1441 | http_addr_t addr; /* Connection address */ | |
1442 | socklen_t addrlen; /* Length of address */ | |
1443 | ||
1444 | addrlen = sizeof(addr); | |
1445 | if (getsockname(http->fd, (struct sockaddr *)&addr, &addrlen)) | |
1446 | { | |
25731360 | 1447 | DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno))); |
41e0907c MS |
1448 | hostname[0] = '\0'; |
1449 | } | |
1450 | else if (httpAddrLocalhost(&addr)) | |
1451 | hostname[0] = '\0'; | |
1452 | else | |
a27a134a MS |
1453 | { |
1454 | httpAddrLookup(&addr, hostname, sizeof(hostname)); | |
25731360 | 1455 | DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname)); |
a27a134a | 1456 | } |
41e0907c MS |
1457 | } |
1458 | ||
a27a134a MS |
1459 | if (isdigit(hostname[0] & 255) || hostname[0] == '[') |
1460 | hostname[0] = '\0'; /* Don't allow numeric addresses */ | |
1461 | ||
41e0907c MS |
1462 | if (hostname[0]) |
1463 | http->tls_credentials = http_cdsa_copy_server(hostname); | |
1464 | else if (tls_common_name) | |
1465 | http->tls_credentials = http_cdsa_copy_server(tls_common_name); | |
1466 | ||
1467 | if (!http->tls_credentials && tls_auto_create && (hostname[0] || tls_common_name)) | |
1468 | { | |
25731360 | 1469 | DEBUG_printf(("4_httpTLSStart: Auto-create credentials for \"%s\".", hostname[0] ? hostname : tls_common_name)); |
41e0907c MS |
1470 | |
1471 | if (!cupsMakeServerCredentials(tls_keypath, hostname[0] ? hostname : tls_common_name, 0, NULL, time(NULL) + 365 * 86400)) | |
1472 | { | |
25731360 | 1473 | DEBUG_puts("4_httpTLSStart: cupsMakeServerCredentials failed."); |
41e0907c MS |
1474 | http->error = errno = EINVAL; |
1475 | http->status = HTTP_STATUS_ERROR; | |
1476 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create server credentials."), 1); | |
1477 | ||
1478 | return (-1); | |
1479 | } | |
1480 | ||
1481 | http->tls_credentials = http_cdsa_copy_server(hostname[0] ? hostname : tls_common_name); | |
1482 | } | |
1483 | ||
1484 | if (!http->tls_credentials) | |
1485 | { | |
25731360 | 1486 | DEBUG_puts("4_httpTLSStart: Unable to find server credentials."); |
41e0907c MS |
1487 | http->error = errno = EINVAL; |
1488 | http->status = HTTP_STATUS_ERROR; | |
1489 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to find server credentials."), 1); | |
1490 | ||
1491 | return (-1); | |
1492 | } | |
1493 | ||
1494 | error = SSLSetCertificate(http->tls, http->tls_credentials); | |
1495 | ||
25731360 | 1496 | DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error)); |
41e0907c MS |
1497 | } |
1498 | ||
807315e6 | 1499 | DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", (void *)http->tls_credentials)); |
2c85b752 MS |
1500 | |
1501 | /* | |
1502 | * Let the server know which hostname/domain we are trying to connect to | |
1503 | * in case it wants to serve up a certificate with a matching common name. | |
1504 | */ | |
1505 | ||
41e0907c | 1506 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1507 | { |
41e0907c MS |
1508 | /* |
1509 | * Client: get the hostname to use for TLS... | |
1510 | */ | |
1511 | ||
1512 | if (httpAddrLocalhost(http->hostaddr)) | |
1513 | { | |
1514 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
1515 | } | |
1516 | else | |
1517 | { | |
1518 | /* | |
1519 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
1520 | */ | |
1521 | ||
1522 | strlcpy(hostname, http->hostname, sizeof(hostname)); | |
1523 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
1524 | *hostptr == '.') | |
1525 | *hostptr = '\0'; | |
1526 | } | |
1527 | ||
2c85b752 MS |
1528 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); |
1529 | ||
25731360 | 1530 | DEBUG_printf(("4_httpTLSStart: SSLSetPeerDomainName, error=%d", (int)error)); |
2c85b752 MS |
1531 | } |
1532 | ||
1533 | if (!error) | |
1534 | { | |
1535 | int done = 0; /* Are we done yet? */ | |
1536 | ||
1537 | while (!error && !done) | |
1538 | { | |
1539 | error = SSLHandshake(http->tls); | |
1540 | ||
25731360 | 1541 | DEBUG_printf(("4_httpTLSStart: SSLHandshake returned %d.", (int)error)); |
2c85b752 MS |
1542 | |
1543 | switch (error) | |
1544 | { | |
1545 | case noErr : | |
1546 | done = 1; | |
1547 | break; | |
1548 | ||
1549 | case errSSLWouldBlock : | |
1550 | error = noErr; /* Force a retry */ | |
1551 | usleep(1000); /* in 1 millisecond */ | |
1552 | break; | |
1553 | ||
1554 | case errSSLServerAuthCompleted : | |
1555 | error = 0; | |
1556 | if (cg->server_cert_cb) | |
1557 | { | |
1558 | error = httpCopyCredentials(http, &credentials); | |
1559 | if (!error) | |
1560 | { | |
1561 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
1562 | cg->server_cert_data); | |
1563 | httpFreeCredentials(credentials); | |
1564 | } | |
1565 | ||
25731360 | 1566 | DEBUG_printf(("4_httpTLSStart: Server certificate callback " |
2c85b752 MS |
1567 | "returned %d.", (int)error)); |
1568 | } | |
1569 | break; | |
1570 | ||
1571 | case errSSLClientCertRequested : | |
1572 | error = 0; | |
1573 | ||
1574 | if (cg->client_cert_cb) | |
1575 | { | |
1576 | names = NULL; | |
1577 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && | |
1578 | dn_array) | |
1579 | { | |
1580 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
1581 | { | |
1582 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
1583 | { | |
1584 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
1585 | ||
1586 | if ((credential = malloc(sizeof(*credential))) != NULL) | |
1587 | { | |
7e86f2f6 | 1588 | credential->datalen = (size_t)CFDataGetLength(data); |
2c85b752 MS |
1589 | if ((credential->data = malloc(credential->datalen))) |
1590 | { | |
1591 | memcpy((void *)credential->data, CFDataGetBytePtr(data), | |
1592 | credential->datalen); | |
1593 | cupsArrayAdd(names, credential); | |
1594 | } | |
1595 | else | |
1596 | free(credential); | |
1597 | } | |
1598 | } | |
1599 | } | |
1600 | ||
1601 | CFRelease(dn_array); | |
1602 | } | |
1603 | ||
1604 | if (!error) | |
1605 | { | |
1606 | error = (cg->client_cert_cb)(http, http->tls, names, | |
1607 | cg->client_cert_data); | |
1608 | ||
25731360 | 1609 | DEBUG_printf(("4_httpTLSStart: Client certificate callback " |
2c85b752 MS |
1610 | "returned %d.", (int)error)); |
1611 | } | |
1612 | ||
1613 | httpFreeCredentials(names); | |
1614 | } | |
1615 | break; | |
1616 | ||
1617 | case errSSLUnknownRootCert : | |
1618 | message = _("Unable to establish a secure connection to host " | |
1619 | "(untrusted certificate)."); | |
1620 | break; | |
1621 | ||
1622 | case errSSLNoRootCert : | |
1623 | message = _("Unable to establish a secure connection to host " | |
1624 | "(self-signed certificate)."); | |
1625 | break; | |
1626 | ||
1627 | case errSSLCertExpired : | |
1628 | message = _("Unable to establish a secure connection to host " | |
1629 | "(expired certificate)."); | |
1630 | break; | |
1631 | ||
1632 | case errSSLCertNotYetValid : | |
1633 | message = _("Unable to establish a secure connection to host " | |
1634 | "(certificate not yet valid)."); | |
1635 | break; | |
1636 | ||
1637 | case errSSLHostNameMismatch : | |
1638 | message = _("Unable to establish a secure connection to host " | |
1639 | "(host name mismatch)."); | |
1640 | break; | |
1641 | ||
1642 | case errSSLXCertChainInvalid : | |
1643 | message = _("Unable to establish a secure connection to host " | |
1644 | "(certificate chain invalid)."); | |
1645 | break; | |
1646 | ||
1647 | case errSSLConnectionRefused : | |
1648 | message = _("Unable to establish a secure connection to host " | |
1649 | "(peer dropped connection before responding)."); | |
1650 | break; | |
1651 | ||
1652 | default : | |
1653 | break; | |
1654 | } | |
1655 | } | |
1656 | } | |
1657 | ||
1658 | if (error) | |
1659 | { | |
1660 | http->error = error; | |
1661 | http->status = HTTP_STATUS_ERROR; | |
1662 | errno = ECONNREFUSED; | |
1663 | ||
1664 | CFRelease(http->tls); | |
1665 | http->tls = NULL; | |
1666 | ||
1667 | /* | |
1668 | * If an error string wasn't set by the callbacks use a generic one... | |
1669 | */ | |
1670 | ||
1671 | if (!message) | |
1672 | #ifdef HAVE_CSSMERRORSTRING | |
1673 | message = cssmErrorString(error); | |
1674 | #else | |
1675 | message = _("Unable to establish a secure connection to host."); | |
1676 | #endif /* HAVE_CSSMERRORSTRING */ | |
1677 | ||
1678 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); | |
1679 | ||
1680 | return (-1); | |
1681 | } | |
1682 | ||
1683 | return (0); | |
1684 | } | |
1685 | ||
1686 | ||
1687 | /* | |
25731360 | 1688 | * '_httpTLSStop()' - Shut down SSL/TLS on a connection. |
2c85b752 MS |
1689 | */ |
1690 | ||
25731360 MS |
1691 | void |
1692 | _httpTLSStop(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1693 | { |
1694 | while (SSLClose(http->tls) == errSSLWouldBlock) | |
1695 | usleep(1000); | |
1696 | ||
1697 | CFRelease(http->tls); | |
1698 | ||
1699 | if (http->tls_credentials) | |
1700 | CFRelease(http->tls_credentials); | |
1701 | ||
1702 | http->tls = NULL; | |
1703 | http->tls_credentials = NULL; | |
1704 | } | |
1705 | ||
1706 | ||
1707 | /* | |
25731360 | 1708 | * '_httpTLSWrite()' - Write to a SSL/TLS connection. |
2c85b752 MS |
1709 | */ |
1710 | ||
25731360 MS |
1711 | int /* O - Bytes written */ |
1712 | _httpTLSWrite(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1713 | const char *buf, /* I - Buffer holding data */ |
1714 | int len) /* I - Length of buffer */ | |
1715 | { | |
1716 | ssize_t result; /* Return value */ | |
1717 | OSStatus error; /* Error info */ | |
1718 | size_t processed; /* Number of bytes processed */ | |
1719 | ||
1720 | ||
807315e6 | 1721 | DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", (void *)http, (void *)buf, len)); |
2c85b752 | 1722 | |
7e86f2f6 | 1723 | error = SSLWrite(http->tls, buf, (size_t)len, &processed); |
2c85b752 MS |
1724 | |
1725 | switch (error) | |
1726 | { | |
1727 | case 0 : | |
1728 | result = (int)processed; | |
1729 | break; | |
1730 | ||
1731 | case errSSLWouldBlock : | |
1732 | if (processed) | |
1733 | { | |
1734 | result = (int)processed; | |
1735 | } | |
1736 | else | |
1737 | { | |
1738 | result = -1; | |
1739 | errno = EINTR; | |
1740 | } | |
1741 | break; | |
1742 | ||
1743 | case errSSLClosedGraceful : | |
1744 | default : | |
1745 | if (processed) | |
1746 | { | |
1747 | result = (int)processed; | |
1748 | } | |
1749 | else | |
1750 | { | |
1751 | result = -1; | |
1752 | errno = EPIPE; | |
1753 | } | |
1754 | break; | |
1755 | } | |
1756 | ||
25731360 | 1757 | DEBUG_printf(("3_httpTLSWrite: Returning %d.", (int)result)); |
2c85b752 MS |
1758 | |
1759 | return ((int)result); | |
1760 | } | |
1761 | ||
1762 | ||
1763 | /* | |
88f1e9c8 | 1764 | * 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain. |
2c85b752 MS |
1765 | */ |
1766 | ||
88f1e9c8 MS |
1767 | static CFArrayRef /* O - Array of certificates or NULL */ |
1768 | http_cdsa_copy_server( | |
1769 | const char *common_name) /* I - Server's hostname */ | |
2c85b752 | 1770 | { |
2274d26b | 1771 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 1772 | OSStatus err; /* Error info */ |
88f1e9c8 MS |
1773 | SecIdentityRef identity = NULL;/* Identity */ |
1774 | CFArrayRef certificates = NULL; | |
1775 | /* Certificate array */ | |
1776 | SecPolicyRef policy = NULL; /* Policy ref */ | |
1777 | CFStringRef cfcommon_name = NULL; | |
1778 | /* Server name */ | |
1779 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
1780 | CFArrayRef list = NULL; /* Keychain list */ | |
4daf7e97 | 1781 | SecKeychainRef syschain = NULL;/* System keychain */ |
afd25c34 | 1782 | SecKeychainStatus status = 0; /* Keychain status */ |
2c85b752 | 1783 | |
2c85b752 | 1784 | |
2274d26b MS |
1785 | DEBUG_printf(("3http_cdsa_copy_server(common_name=\"%s\")", common_name)); |
1786 | ||
88f1e9c8 | 1787 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
2c85b752 | 1788 | |
88f1e9c8 MS |
1789 | policy = SecPolicyCreateSSL(1, cfcommon_name); |
1790 | ||
88f1e9c8 | 1791 | if (!policy) |
2274d26b MS |
1792 | { |
1793 | DEBUG_puts("4http_cdsa_copy_server: Unable to create SSL policy."); | |
88f1e9c8 | 1794 | goto cleanup; |
2274d26b | 1795 | } |
88f1e9c8 MS |
1796 | |
1797 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
2274d26b MS |
1798 | { |
1799 | DEBUG_puts("4http_cdsa_copy_server: Unable to create query dictionary."); | |
88f1e9c8 | 1800 | goto cleanup; |
2274d26b | 1801 | } |
88f1e9c8 | 1802 | |
f93b32b6 MS |
1803 | _cupsMutexLock(&tls_mutex); |
1804 | ||
afd25c34 MS |
1805 | err = SecKeychainGetStatus(tls_keychain, &status); |
1806 | ||
1807 | if (err == noErr && !(status & kSecUnlockStateStatus) && tls_cups_keychain) | |
1808 | SecKeychainUnlock(tls_keychain, _CUPS_CDSA_PASSLEN, _CUPS_CDSA_PASSWORD, TRUE); | |
1809 | ||
88f1e9c8 MS |
1810 | CFDictionaryAddValue(query, kSecClass, kSecClassIdentity); |
1811 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); | |
1812 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
1813 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
88f1e9c8 | 1814 | |
4daf7e97 MS |
1815 | syschain = http_cdsa_open_system_keychain(); |
1816 | ||
1817 | if (syschain) | |
1818 | { | |
1819 | const void *values[2] = { syschain, tls_keychain }; | |
1820 | ||
1821 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)values, 2, &kCFTypeArrayCallBacks); | |
1822 | } | |
1823 | else | |
1824 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks); | |
1825 | ||
fc4bbb58 | 1826 | CFDictionaryAddValue(query, kSecMatchSearchList, list); |
88f1e9c8 MS |
1827 | CFRelease(list); |
1828 | ||
1829 | err = SecItemCopyMatching(query, (CFTypeRef *)&identity); | |
1830 | ||
f93b32b6 MS |
1831 | _cupsMutexUnlock(&tls_mutex); |
1832 | ||
2274d26b MS |
1833 | if (err != noErr) |
1834 | { | |
1835 | DEBUG_printf(("4http_cdsa_copy_server: SecItemCopyMatching failed with status %d.", (int)err)); | |
88f1e9c8 | 1836 | goto cleanup; |
2274d26b | 1837 | } |
88f1e9c8 MS |
1838 | |
1839 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
2274d26b MS |
1840 | { |
1841 | DEBUG_puts("4http_cdsa_copy_server: Search returned something that is not an identity."); | |
88f1e9c8 | 1842 | goto cleanup; |
2274d26b | 1843 | } |
88f1e9c8 MS |
1844 | |
1845 | if ((certificates = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks)) == NULL) | |
2274d26b MS |
1846 | { |
1847 | DEBUG_puts("4http_cdsa_copy_server: Unable to create array of certificates."); | |
88f1e9c8 | 1848 | goto cleanup; |
2274d26b | 1849 | } |
88f1e9c8 MS |
1850 | |
1851 | cleanup : | |
1852 | ||
4daf7e97 MS |
1853 | if (syschain) |
1854 | CFRelease(syschain); | |
88f1e9c8 MS |
1855 | if (identity) |
1856 | CFRelease(identity); | |
88f1e9c8 MS |
1857 | if (policy) |
1858 | CFRelease(policy); | |
2274d26b MS |
1859 | if (cfcommon_name) |
1860 | CFRelease(cfcommon_name); | |
88f1e9c8 MS |
1861 | if (query) |
1862 | CFRelease(query); | |
1863 | ||
2274d26b MS |
1864 | DEBUG_printf(("4http_cdsa_copy_server: Returning %p.", (void *)certificates)); |
1865 | ||
88f1e9c8 | 1866 | return (certificates); |
2274d26b MS |
1867 | #else |
1868 | ||
1869 | if (!tls_selfsigned) | |
1870 | return (NULL); | |
1871 | ||
1872 | return (CFArrayCreate(NULL, (const void **)&tls_selfsigned, 1, &kCFTypeArrayCallBacks)); | |
1873 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 MS |
1874 | } |
1875 | ||
1876 | ||
2ece34a9 MS |
1877 | /* |
1878 | * 'http_cdsa_create_credential()' - Create a single credential in the internal format. | |
1879 | */ | |
1880 | ||
1881 | static SecCertificateRef /* O - Certificate */ | |
1882 | http_cdsa_create_credential( | |
1883 | http_credential_t *credential) /* I - Credential */ | |
1884 | { | |
1885 | if (!credential) | |
1886 | return (NULL); | |
1887 | ||
1888 | return (SecCertificateCreateWithBytes(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen)); | |
1889 | } | |
1890 | ||
1891 | ||
fc4bbb58 | 1892 | #ifdef HAVE_SECKEYCHAINOPEN |
005f7f1f MS |
1893 | /* |
1894 | * 'http_cdsa_default_path()' - Get the default keychain path. | |
1895 | */ | |
1896 | ||
1897 | static const char * /* O - Keychain path */ | |
1898 | http_cdsa_default_path(char *buffer, /* I - Path buffer */ | |
1899 | size_t bufsize) /* I - Size of buffer */ | |
1900 | { | |
1901 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
1902 | ||
1903 | ||
4daf7e97 MS |
1904 | /* |
1905 | * Determine the default keychain path. Note that the login and system | |
1906 | * keychains are no longer accessible to user applications starting in macOS | |
1907 | * 10.11.4 (!), so we need to create our own keychain just for CUPS. | |
1908 | */ | |
1909 | ||
005f7f1f | 1910 | if (getuid() && home) |
4daf7e97 | 1911 | snprintf(buffer, bufsize, "%s/.cups/ssl.keychain", home); |
005f7f1f | 1912 | else |
4daf7e97 | 1913 | strlcpy(buffer, "/etc/cups/ssl.keychain", bufsize); |
005f7f1f MS |
1914 | |
1915 | DEBUG_printf(("1http_cdsa_default_path: Using default path \"%s\".", buffer)); | |
1916 | ||
1917 | return (buffer); | |
1918 | } | |
4daf7e97 MS |
1919 | |
1920 | ||
1921 | /* | |
1922 | * 'http_cdsa_open_keychain()' - Open (or create) a keychain. | |
1923 | */ | |
1924 | ||
1925 | static SecKeychainRef /* O - Keychain or NULL */ | |
1926 | http_cdsa_open_keychain( | |
1927 | const char *path, /* I - Path to keychain */ | |
1928 | char *filename, /* I - Keychain filename */ | |
1929 | size_t filesize) /* I - Size of filename buffer */ | |
1930 | { | |
1931 | SecKeychainRef keychain = NULL;/* Temporary keychain */ | |
1932 | OSStatus err; /* Error code */ | |
1933 | Boolean interaction; /* Interaction allowed? */ | |
1934 | SecKeychainStatus status = 0; /* Keychain status */ | |
1935 | ||
1936 | ||
1937 | /* | |
1938 | * Get the keychain filename... | |
1939 | */ | |
1940 | ||
1941 | if (!path) | |
afd25c34 | 1942 | { |
4daf7e97 | 1943 | path = http_cdsa_default_path(filename, filesize); |
afd25c34 MS |
1944 | tls_cups_keychain = 1; |
1945 | } | |
4daf7e97 | 1946 | else |
afd25c34 | 1947 | { |
4daf7e97 | 1948 | strlcpy(filename, path, filesize); |
afd25c34 MS |
1949 | tls_cups_keychain = 0; |
1950 | } | |
4daf7e97 MS |
1951 | |
1952 | /* | |
1953 | * Save the interaction setting and disable while we open the keychain... | |
1954 | */ | |
1955 | ||
1956 | SecKeychainGetUserInteractionAllowed(&interaction); | |
1957 | SecKeychainSetUserInteractionAllowed(FALSE); | |
1958 | ||
afd25c34 | 1959 | if (access(path, R_OK) && tls_cups_keychain) |
4daf7e97 MS |
1960 | { |
1961 | /* | |
1962 | * Create a new keychain at the given path... | |
1963 | */ | |
1964 | ||
1965 | err = SecKeychainCreate(path, _CUPS_CDSA_PASSLEN, _CUPS_CDSA_PASSWORD, FALSE, NULL, &keychain); | |
1966 | } | |
1967 | else | |
1968 | { | |
1969 | /* | |
1970 | * Open the existing keychain and unlock as needed... | |
1971 | */ | |
1972 | ||
1973 | err = SecKeychainOpen(path, &keychain); | |
1974 | ||
1975 | if (err == noErr) | |
1976 | err = SecKeychainGetStatus(keychain, &status); | |
1977 | ||
afd25c34 | 1978 | if (err == noErr && !(status & kSecUnlockStateStatus) && tls_cups_keychain) |
4daf7e97 MS |
1979 | err = SecKeychainUnlock(keychain, _CUPS_CDSA_PASSLEN, _CUPS_CDSA_PASSWORD, TRUE); |
1980 | } | |
1981 | ||
1982 | /* | |
1983 | * Restore interaction setting... | |
1984 | */ | |
1985 | ||
1986 | SecKeychainSetUserInteractionAllowed(interaction); | |
1987 | ||
1988 | /* | |
1989 | * Release the keychain if we had any errors... | |
1990 | */ | |
1991 | ||
1992 | if (err != noErr) | |
1993 | { | |
1994 | /* TODO: Set cups last error string */ | |
1995 | DEBUG_printf(("4http_cdsa_open_keychain: Unable to open keychain (%d), returning NULL.", (int)err)); | |
1996 | ||
1997 | if (keychain) | |
1998 | { | |
1999 | CFRelease(keychain); | |
2000 | keychain = NULL; | |
2001 | } | |
2002 | } | |
2003 | ||
2004 | /* | |
2005 | * Return the keychain or NULL... | |
2006 | */ | |
2007 | ||
2008 | return (keychain); | |
2009 | } | |
2010 | ||
2011 | ||
2012 | /* | |
2013 | * 'http_cdsa_open_system_keychain()' - Open the System keychain. | |
2014 | */ | |
2015 | ||
2016 | static SecKeychainRef | |
2017 | http_cdsa_open_system_keychain(void) | |
2018 | { | |
2019 | SecKeychainRef keychain = NULL;/* Temporary keychain */ | |
2020 | OSStatus err; /* Error code */ | |
2021 | Boolean interaction; /* Interaction allowed? */ | |
2022 | SecKeychainStatus status = 0; /* Keychain status */ | |
2023 | ||
2024 | ||
2025 | /* | |
2026 | * Save the interaction setting and disable while we open the keychain... | |
2027 | */ | |
2028 | ||
2029 | SecKeychainGetUserInteractionAllowed(&interaction); | |
2030 | SecKeychainSetUserInteractionAllowed(TRUE); | |
2031 | ||
2032 | err = SecKeychainOpen("/Library/Keychains/System.keychain", &keychain); | |
2033 | ||
2034 | if (err == noErr) | |
2035 | err = SecKeychainGetStatus(keychain, &status); | |
2036 | ||
2037 | if (err == noErr && !(status & kSecUnlockStateStatus)) | |
2038 | err = errSecInteractionNotAllowed; | |
2039 | ||
2040 | /* | |
2041 | * Restore interaction setting... | |
2042 | */ | |
2043 | ||
2044 | SecKeychainSetUserInteractionAllowed(interaction); | |
2045 | ||
2046 | /* | |
2047 | * Release the keychain if we had any errors... | |
2048 | */ | |
2049 | ||
2050 | if (err != noErr) | |
2051 | { | |
2052 | /* TODO: Set cups last error string */ | |
2053 | DEBUG_printf(("4http_cdsa_open_system_keychain: Unable to open keychain (%d), returning NULL.", (int)err)); | |
2054 | ||
2055 | if (keychain) | |
2056 | { | |
2057 | CFRelease(keychain); | |
2058 | keychain = NULL; | |
2059 | } | |
2060 | } | |
2061 | ||
2062 | /* | |
2063 | * Return the keychain or NULL... | |
2064 | */ | |
2065 | ||
2066 | return (keychain); | |
2067 | } | |
fc4bbb58 | 2068 | #endif /* HAVE_SECKEYCHAINOPEN */ |
005f7f1f MS |
2069 | |
2070 | ||
2c85b752 | 2071 | /* |
88f1e9c8 | 2072 | * 'http_cdsa_read()' - Read function for the CDSA library. |
2c85b752 MS |
2073 | */ |
2074 | ||
88f1e9c8 MS |
2075 | static OSStatus /* O - -1 on error, 0 on success */ |
2076 | http_cdsa_read( | |
2077 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2078 | void *data, /* I - Data buffer */ | |
2079 | size_t *dataLength) /* IO - Number of bytes */ | |
2c85b752 | 2080 | { |
88f1e9c8 MS |
2081 | OSStatus result; /* Return value */ |
2082 | ssize_t bytes; /* Number of bytes read */ | |
2083 | http_t *http; /* HTTP connection */ | |
2c85b752 | 2084 | |
2c85b752 | 2085 | |
88f1e9c8 | 2086 | http = (http_t *)connection; |
2c85b752 | 2087 | |
88f1e9c8 | 2088 | if (!http->blocking) |
2c85b752 MS |
2089 | { |
2090 | /* | |
88f1e9c8 | 2091 | * Make sure we have data before we read... |
2c85b752 MS |
2092 | */ |
2093 | ||
88f1e9c8 MS |
2094 | while (!_httpWait(http, http->wait_value, 0)) |
2095 | { | |
2096 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
2097 | continue; | |
2098 | ||
2099 | http->error = ETIMEDOUT; | |
2100 | return (-1); | |
2101 | } | |
2c85b752 MS |
2102 | } |
2103 | ||
88f1e9c8 | 2104 | do |
2c85b752 | 2105 | { |
88f1e9c8 | 2106 | bytes = recv(http->fd, data, *dataLength, 0); |
2c85b752 | 2107 | } |
88f1e9c8 | 2108 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
2c85b752 | 2109 | |
88f1e9c8 MS |
2110 | if ((size_t)bytes == *dataLength) |
2111 | { | |
2112 | result = 0; | |
2113 | } | |
2114 | else if (bytes > 0) | |
2115 | { | |
2116 | *dataLength = (size_t)bytes; | |
2117 | result = errSSLWouldBlock; | |
2118 | } | |
2119 | else | |
2120 | { | |
2121 | *dataLength = 0; | |
2c85b752 | 2122 | |
88f1e9c8 MS |
2123 | if (bytes == 0) |
2124 | result = errSSLClosedGraceful; | |
2125 | else if (errno == EAGAIN) | |
2126 | result = errSSLWouldBlock; | |
2127 | else | |
2128 | result = errSSLClosedAbort; | |
2129 | } | |
2c85b752 | 2130 | |
88f1e9c8 MS |
2131 | return (result); |
2132 | } | |
2c85b752 | 2133 | |
2c85b752 | 2134 | |
88f1e9c8 MS |
2135 | /* |
2136 | * 'http_cdsa_set_credentials()' - Set the TLS credentials. | |
2137 | */ | |
2c85b752 | 2138 | |
88f1e9c8 MS |
2139 | static int /* O - Status of connection */ |
2140 | http_cdsa_set_credentials(http_t *http) /* I - HTTP connection */ | |
2141 | { | |
2142 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
2143 | OSStatus error = 0; /* Error code */ | |
2144 | http_tls_credentials_t credentials = NULL; | |
2145 | /* TLS credentials */ | |
2c85b752 | 2146 | |
2c85b752 | 2147 | |
807315e6 | 2148 | DEBUG_printf(("7http_tls_set_credentials(%p)", (void *)http)); |
2c85b752 | 2149 | |
88f1e9c8 MS |
2150 | /* |
2151 | * Prefer connection specific credentials... | |
2152 | */ | |
2c85b752 | 2153 | |
88f1e9c8 MS |
2154 | if ((credentials = http->tls_credentials) == NULL) |
2155 | credentials = cg->tls_credentials; | |
2c85b752 | 2156 | |
88f1e9c8 MS |
2157 | if (credentials) |
2158 | { | |
2159 | error = SSLSetCertificate(http->tls, credentials); | |
2160 | DEBUG_printf(("4http_tls_set_credentials: SSLSetCertificate, error=%d", | |
2161 | (int)error)); | |
2c85b752 | 2162 | } |
88f1e9c8 MS |
2163 | else |
2164 | DEBUG_puts("4http_tls_set_credentials: No credentials to set."); | |
2165 | ||
2166 | return (error); | |
2167 | } | |
2168 | ||
2169 | ||
2170 | /* | |
2171 | * 'http_cdsa_write()' - Write function for the CDSA library. | |
2172 | */ | |
2173 | ||
2174 | static OSStatus /* O - -1 on error, 0 on success */ | |
2175 | http_cdsa_write( | |
2176 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2177 | const void *data, /* I - Data buffer */ | |
2178 | size_t *dataLength) /* IO - Number of bytes */ | |
2179 | { | |
2180 | OSStatus result; /* Return value */ | |
2181 | ssize_t bytes; /* Number of bytes read */ | |
2182 | http_t *http; /* HTTP connection */ | |
2c85b752 | 2183 | |
2c85b752 | 2184 | |
88f1e9c8 MS |
2185 | http = (http_t *)connection; |
2186 | ||
2187 | do | |
2c85b752 | 2188 | { |
88f1e9c8 MS |
2189 | bytes = write(http->fd, data, *dataLength); |
2190 | } | |
2191 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); | |
2192 | ||
2193 | if ((size_t)bytes == *dataLength) | |
2194 | { | |
2195 | result = 0; | |
2196 | } | |
2197 | else if (bytes >= 0) | |
2198 | { | |
2199 | *dataLength = (size_t)bytes; | |
2200 | result = errSSLWouldBlock; | |
2c85b752 MS |
2201 | } |
2202 | else | |
88f1e9c8 MS |
2203 | { |
2204 | *dataLength = 0; | |
2c85b752 | 2205 | |
88f1e9c8 MS |
2206 | if (errno == EAGAIN) |
2207 | result = errSSLWouldBlock; | |
2208 | else | |
2209 | result = errSSLClosedAbort; | |
2210 | } | |
2211 | ||
2212 | return (result); | |
2c85b752 | 2213 | } |