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b423cd4c | 1 | /* |
f7deaa1a | 2 | * "$Id: auth.c 6314 2007-03-01 19:11:54Z mike $" |
ef416fc2 | 3 | * |
4 | * Authorization routines for the Common UNIX Printing System (CUPS). | |
5 | * | |
f7deaa1a | 6 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
7 | * | |
8 | * This file contains Kerberos support code, copyright 2006 by | |
9 | * Jelmer Vernooij. | |
ef416fc2 | 10 | * |
11 | * These coded instructions, statements, and computer programs are the | |
12 | * property of Easy Software Products and are protected by Federal | |
13 | * copyright law. Distribution and use rights are outlined in the file | |
14 | * "LICENSE.txt" which should have been included with this file. If this | |
15 | * file is missing or damaged please contact Easy Software Products | |
16 | * at: | |
17 | * | |
18 | * Attn: CUPS Licensing Information | |
19 | * Easy Software Products | |
20 | * 44141 Airport View Drive, Suite 204 | |
21 | * Hollywood, Maryland 20636 USA | |
22 | * | |
23 | * Voice: (301) 373-9600 | |
24 | * EMail: cups-info@cups.org | |
25 | * WWW: http://www.cups.org | |
26 | * | |
27 | * Contents: | |
28 | * | |
29 | * cupsdAddLocation() - Add a location for authorization. | |
30 | * cupsdAddName() - Add a name to a location... | |
31 | * cupsdAllowHost() - Add a host name that is allowed to access the | |
32 | * location. | |
89d46774 | 33 | * cupsdAllowIP() - Add an IP address or network that is allowed |
34 | * to access the location. | |
35 | * cupsdAuthorize() - Validate any authorization credentials. | |
ef416fc2 | 36 | * cupsdCheckAuth() - Check authorization masks. |
37 | * cupsdCheckGroup() - Check for a user's group membership. | |
38 | * cupsdCopyLocation() - Make a copy of a location... | |
89d46774 | 39 | * cupsdDeleteAllLocations() - Free all memory used for location |
40 | * authorization. | |
ef416fc2 | 41 | * cupsdDeleteLocation() - Free all memory used by a location. |
89d46774 | 42 | * cupsdDenyHost() - Add a host name that is not allowed to access |
43 | * the location. | |
44 | * cupsdDenyIP() - Add an IP address or network that is not | |
45 | * allowed to access the location. | |
ef416fc2 | 46 | * cupsdFindBest() - Find the location entry that best matches the |
47 | * resource. | |
48 | * cupsdFindLocation() - Find the named location. | |
ef416fc2 | 49 | * cupsdIsAuthorized() - Check to see if the user is authorized... |
50 | * add_allow() - Add an allow mask to the location. | |
51 | * add_deny() - Add a deny mask to the location. | |
bd7854cb | 52 | * compare_locations() - Compare two locations. |
ef416fc2 | 53 | * cups_crypt() - Encrypt the password using the DES or MD5 |
54 | * algorithms, as needed. | |
f7deaa1a | 55 | * get_gss_creds() - Obtain GSS credentials. |
e1d6a774 | 56 | * get_md5_password() - Get an MD5 password. |
ef416fc2 | 57 | * pam_func() - PAM conversation function. |
58 | * to64() - Base64-encode an integer value... | |
f7deaa1a | 59 | * check_authref() - Check an authorization services reference. |
ef416fc2 | 60 | */ |
61 | ||
62 | /* | |
63 | * Include necessary headers... | |
64 | */ | |
65 | ||
66 | #include "cupsd.h" | |
67 | #include <grp.h> | |
68 | #ifdef HAVE_SHADOW_H | |
69 | # include <shadow.h> | |
70 | #endif /* HAVE_SHADOW_H */ | |
71 | #ifdef HAVE_CRYPT_H | |
72 | # include <crypt.h> | |
73 | #endif /* HAVE_CRYPT_H */ | |
74 | #if HAVE_LIBPAM | |
75 | # ifdef HAVE_PAM_PAM_APPL_H | |
76 | # include <pam/pam_appl.h> | |
77 | # else | |
78 | # include <security/pam_appl.h> | |
79 | # endif /* HAVE_PAM_PAM_APPL_H */ | |
80 | #endif /* HAVE_LIBPAM */ | |
81 | #ifdef HAVE_USERSEC_H | |
82 | # include <usersec.h> | |
83 | #endif /* HAVE_USERSEC_H */ | |
bd7854cb | 84 | #ifdef HAVE_MEMBERSHIP_H |
85 | # include <membership.h> | |
86 | #endif /* HAVE_MEMBERSHIP_H */ | |
f7deaa1a | 87 | #ifdef HAVE_AUTHORIZATION_H |
88 | # include <Security/AuthorizationTags.h> | |
89 | # ifdef HAVE_SECBASEPRIV_H | |
90 | # include <Security/SecBasePriv.h> | |
91 | # else | |
92 | extern const char *cssmErrorString(int error); | |
93 | # endif /* HAVE_SECBASEPRIV_H */ | |
94 | #endif /* HAVE_AUTHORIZATION_H */ | |
ef416fc2 | 95 | |
96 | ||
97 | /* | |
98 | * Local functions... | |
99 | */ | |
100 | ||
101 | static cupsd_authmask_t *add_allow(cupsd_location_t *loc); | |
102 | static cupsd_authmask_t *add_deny(cupsd_location_t *loc); | |
f7deaa1a | 103 | #ifdef HAVE_AUTHORIZATION_H |
104 | static int check_authref(cupsd_client_t *con, const char *right); | |
105 | #endif /* HAVE_AUTHORIZATION_H */ | |
bd7854cb | 106 | static int compare_locations(cupsd_location_t *a, |
107 | cupsd_location_t *b); | |
d09495fa | 108 | #if !HAVE_LIBPAM && !defined(HAVE_USERSEC_H) |
ef416fc2 | 109 | static char *cups_crypt(const char *pw, const char *salt); |
d09495fa | 110 | #endif /* !HAVE_LIBPAM && !HAVE_USERSEC_H */ |
f7deaa1a | 111 | #ifdef HAVE_GSSAPI |
112 | static gss_cred_id_t get_gss_creds(const char *service_name); | |
113 | #endif /* HAVE_GSSAPI */ | |
e1d6a774 | 114 | static char *get_md5_password(const char *username, |
115 | const char *group, char passwd[33]); | |
ef416fc2 | 116 | #if HAVE_LIBPAM |
117 | static int pam_func(int, const struct pam_message **, | |
118 | struct pam_response **, void *); | |
f7deaa1a | 119 | #elif !defined(HAVE_USERSEC_H) |
ef416fc2 | 120 | static void to64(char *s, unsigned long v, int n); |
121 | #endif /* HAVE_LIBPAM */ | |
122 | ||
123 | ||
124 | /* | |
125 | * Local structures... | |
126 | */ | |
127 | ||
128 | #if HAVE_LIBPAM | |
129 | typedef struct cupsd_authdata_s /**** Authentication data ****/ | |
130 | { | |
131 | char username[33], /* Username string */ | |
132 | password[33]; /* Password string */ | |
133 | } cupsd_authdata_t; | |
134 | #endif /* HAVE_LIBPAM */ | |
135 | ||
136 | ||
137 | /* | |
138 | * Local globals... | |
139 | */ | |
140 | ||
f301802f | 141 | #if defined(__hpux) && HAVE_LIBPAM |
b423cd4c | 142 | static cupsd_authdata_t *auth_data; /* Current client being authenticated */ |
ef416fc2 | 143 | #endif /* __hpux && HAVE_LIBPAM */ |
144 | ||
145 | ||
146 | /* | |
147 | * 'cupsdAddLocation()' - Add a location for authorization. | |
148 | */ | |
149 | ||
150 | cupsd_location_t * /* O - Pointer to new location record */ | |
151 | cupsdAddLocation(const char *location) /* I - Location path */ | |
152 | { | |
153 | cupsd_location_t *temp; /* New location */ | |
154 | ||
155 | ||
156 | /* | |
bd7854cb | 157 | * Make sure the locations array is created... |
ef416fc2 | 158 | */ |
159 | ||
bd7854cb | 160 | if (!Locations) |
161 | Locations = cupsArrayNew((cups_array_func_t)compare_locations, NULL); | |
ef416fc2 | 162 | |
bd7854cb | 163 | if (!Locations) |
ef416fc2 | 164 | return (NULL); |
165 | ||
bd7854cb | 166 | /* |
167 | * Try to allocate memory for the new location. | |
168 | */ | |
169 | ||
170 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) | |
171 | return (NULL); | |
ef416fc2 | 172 | |
173 | /* | |
174 | * Initialize the record and copy the name over... | |
175 | */ | |
176 | ||
bd7854cb | 177 | temp->location = strdup(location); |
178 | temp->length = strlen(temp->location); | |
ef416fc2 | 179 | |
bd7854cb | 180 | cupsArrayAdd(Locations, temp); |
181 | ||
182 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddLocation: added location \'%s\'", | |
ef416fc2 | 183 | location); |
184 | ||
185 | /* | |
186 | * Return the new record... | |
187 | */ | |
188 | ||
189 | return (temp); | |
190 | } | |
191 | ||
192 | ||
193 | /* | |
194 | * 'cupsdAddName()' - Add a name to a location... | |
195 | */ | |
196 | ||
197 | void | |
198 | cupsdAddName(cupsd_location_t *loc, /* I - Location to add to */ | |
199 | char *name) /* I - Name to add */ | |
200 | { | |
201 | char **temp; /* Pointer to names array */ | |
202 | ||
203 | ||
204 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddName(loc=%p, name=\"%s\")", | |
205 | loc, name); | |
206 | ||
207 | if (loc->num_names == 0) | |
208 | temp = malloc(sizeof(char *)); | |
209 | else | |
210 | temp = realloc(loc->names, (loc->num_names + 1) * sizeof(char *)); | |
211 | ||
212 | if (temp == NULL) | |
213 | { | |
214 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to add name to location %s: %s", | |
e1d6a774 | 215 | loc->location ? loc->location : "nil", strerror(errno)); |
ef416fc2 | 216 | return; |
217 | } | |
218 | ||
219 | loc->names = temp; | |
220 | ||
221 | if ((temp[loc->num_names] = strdup(name)) == NULL) | |
222 | { | |
223 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
224 | "Unable to duplicate name for location %s: %s", | |
e1d6a774 | 225 | loc->location ? loc->location : "nil", strerror(errno)); |
ef416fc2 | 226 | return; |
227 | } | |
228 | ||
229 | loc->num_names ++; | |
230 | } | |
231 | ||
232 | ||
233 | /* | |
234 | * 'cupsdAllowHost()' - Add a host name that is allowed to access the location. | |
235 | */ | |
236 | ||
237 | void | |
238 | cupsdAllowHost(cupsd_location_t *loc, /* I - Location to add to */ | |
239 | char *name) /* I - Name of host or domain to add */ | |
240 | { | |
241 | cupsd_authmask_t *temp; /* New host/domain mask */ | |
242 | char ifname[32], /* Interface name */ | |
243 | *ifptr; /* Pointer to end of name */ | |
244 | ||
245 | ||
246 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAllowHost(loc=%p(%s), name=\"%s\")", | |
e1d6a774 | 247 | loc, loc->location ? loc->location : "nil", name); |
ef416fc2 | 248 | |
249 | if ((temp = add_allow(loc)) == NULL) | |
250 | return; | |
251 | ||
bd7854cb | 252 | if (!strcasecmp(name, "@LOCAL")) |
ef416fc2 | 253 | { |
254 | /* | |
255 | * Allow *interface*... | |
256 | */ | |
257 | ||
258 | temp->type = AUTH_INTERFACE; | |
259 | temp->mask.name.name = strdup("*"); | |
260 | temp->mask.name.length = 1; | |
261 | } | |
bd7854cb | 262 | else if (!strncasecmp(name, "@IF(", 4)) |
ef416fc2 | 263 | { |
264 | /* | |
265 | * Allow *interface*... | |
266 | */ | |
267 | ||
268 | strlcpy(ifname, name + 4, sizeof(ifname)); | |
269 | ||
270 | ifptr = ifname + strlen(ifname); | |
271 | ||
272 | if (ifptr[-1] == ')') | |
273 | { | |
274 | ifptr --; | |
275 | *ifptr = '\0'; | |
276 | } | |
277 | ||
278 | temp->type = AUTH_INTERFACE; | |
279 | temp->mask.name.name = strdup(ifname); | |
280 | temp->mask.name.length = ifptr - ifname; | |
281 | } | |
282 | else | |
283 | { | |
284 | /* | |
285 | * Allow name... | |
286 | */ | |
287 | ||
288 | temp->type = AUTH_NAME; | |
289 | temp->mask.name.name = strdup(name); | |
290 | temp->mask.name.length = strlen(name); | |
291 | } | |
292 | } | |
293 | ||
294 | ||
295 | /* | |
296 | * 'cupsdAllowIP()' - Add an IP address or network that is allowed to access | |
297 | * the location. | |
298 | */ | |
299 | ||
300 | void | |
301 | cupsdAllowIP(cupsd_location_t *loc, /* I - Location to add to */ | |
302 | unsigned address[4], /* I - IP address to add */ | |
303 | unsigned netmask[4]) /* I - Netmask of address */ | |
304 | { | |
305 | cupsd_authmask_t *temp; /* New host/domain mask */ | |
306 | ||
307 | ||
308 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
309 | "cupsdAllowIP(loc=%p(%s), address=%x:%x:%x:%x, netmask=%x:%x:%x:%x)", | |
e1d6a774 | 310 | loc, loc->location ? loc->location : "nil", |
311 | address[0], address[1], address[2], address[3], | |
312 | netmask[0], netmask[1], netmask[2], netmask[3]); | |
ef416fc2 | 313 | |
314 | if ((temp = add_allow(loc)) == NULL) | |
315 | return; | |
316 | ||
317 | temp->type = AUTH_IP; | |
318 | memcpy(temp->mask.ip.address, address, sizeof(temp->mask.ip.address)); | |
319 | memcpy(temp->mask.ip.netmask, netmask, sizeof(temp->mask.ip.netmask)); | |
320 | } | |
321 | ||
322 | ||
323 | /* | |
324 | * 'cupsdAuthorize()' - Validate any authorization credentials. | |
325 | */ | |
326 | ||
327 | void | |
328 | cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */ | |
329 | { | |
330 | int type; /* Authentication type */ | |
f7deaa1a | 331 | const char *authorization; /* Pointer into Authorization string */ |
332 | char *ptr, /* Pointer into string */ | |
ef416fc2 | 333 | username[65], /* Username string */ |
334 | password[33]; /* Password string */ | |
335 | const char *localuser; /* Certificate username */ | |
336 | char nonce[HTTP_MAX_VALUE], /* Nonce value from client */ | |
337 | md5[33], /* MD5 password */ | |
338 | basicmd5[33]; /* MD5 of Basic password */ | |
339 | static const char * const states[] = /* HTTP client states... */ | |
340 | { | |
341 | "WAITING", | |
342 | "OPTIONS", | |
343 | "GET", | |
344 | "GET", | |
345 | "HEAD", | |
346 | "POST", | |
347 | "POST", | |
348 | "POST", | |
349 | "PUT", | |
350 | "PUT", | |
351 | "DELETE", | |
352 | "TRACE", | |
353 | "CLOSE", | |
354 | "STATUS" | |
355 | }; | |
356 | ||
357 | ||
358 | /* | |
359 | * Locate the best matching location so we know what kind of | |
360 | * authentication to expect... | |
361 | */ | |
362 | ||
363 | con->best = cupsdFindBest(con->uri, con->http.state); | |
364 | ||
365 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
366 | "cupsdAuthorize: con->uri=\"%s\", con->best=%p(%s)", | |
367 | con->uri, con->best, con->best ? con->best->location : ""); | |
368 | ||
369 | if (con->best && con->best->type != AUTH_NONE) | |
370 | type = con->best->type; | |
371 | else | |
372 | type = DefaultAuthType; | |
373 | ||
374 | /* | |
375 | * Decode the Authorization string... | |
376 | */ | |
377 | ||
f7deaa1a | 378 | authorization = httpGetField(&con->http, HTTP_FIELD_AUTHORIZATION); |
ef416fc2 | 379 | |
380 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAuthorize: Authorization=\"%s\"", | |
381 | authorization); | |
382 | ||
383 | username[0] = '\0'; | |
384 | password[0] = '\0'; | |
385 | ||
f7deaa1a | 386 | #ifdef HAVE_AUTHORIZATION_H |
387 | if (con->authref) | |
388 | { | |
389 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
390 | con->authref = NULL; | |
391 | } | |
392 | #endif /* HAVE_AUTHORIZATION_H */ | |
393 | ||
ef416fc2 | 394 | if (type == AUTH_NONE) |
395 | { | |
396 | /* | |
397 | * No authorization required, return early... | |
398 | */ | |
399 | ||
400 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
401 | "cupsdAuthorize: No authentication required."); | |
402 | return; | |
403 | } | |
404 | else if (!*authorization) | |
405 | { | |
406 | /* | |
407 | * No authorization data provided, return early... | |
408 | */ | |
409 | ||
410 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
411 | "cupsdAuthorize: No authentication data provided."); | |
412 | return; | |
413 | } | |
f7deaa1a | 414 | #ifdef HAVE_AUTHORIZATION_H |
415 | else if (!strncmp(authorization, "AuthRef", 6) && | |
416 | !strcasecmp(con->http.hostname, "localhost")) | |
417 | { | |
418 | OSStatus status; /* Status */ | |
419 | int authlen; /* Auth string length */ | |
420 | AuthorizationItemSet *authinfo; /* Authorization item set */ | |
421 | ||
422 | /* | |
423 | * Get the Authorization Services data... | |
424 | */ | |
425 | ||
426 | authorization += 7; | |
427 | while (isspace(*authorization & 255)) | |
428 | authorization ++; | |
429 | ||
430 | authlen = sizeof(nonce); | |
431 | httpDecode64_2(nonce, &authlen, authorization); | |
432 | ||
433 | if (authlen != kAuthorizationExternalFormLength) | |
434 | { | |
435 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
436 | "cupsdAuthorize: External Authorization reference size" | |
437 | "is incorrect!"); | |
438 | return; | |
439 | } | |
440 | ||
441 | if ((status = AuthorizationCreateFromExternalForm( | |
442 | (AuthorizationExternalForm *)nonce, &con->authref)) != 0) | |
443 | { | |
444 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
445 | "cupsdAuthorize: AuthorizationCreateFromExternalForm " | |
446 | "returned %d (%s)", | |
447 | (int)status, cssmErrorString(status)); | |
448 | return; | |
449 | } | |
450 | ||
451 | if ((status = AuthorizationCopyInfo(con->authref, | |
452 | kAuthorizationEnvironmentUsername, | |
453 | &authinfo)) != 0) | |
454 | { | |
455 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
456 | "cupsdAuthorize: AuthorizationCopyInfo returned %d (%s)", | |
457 | (int)status, cssmErrorString(status)); | |
458 | return; | |
459 | } | |
460 | ||
461 | if (authinfo->count == 1) | |
462 | strlcpy(username, authinfo->items[0].value, sizeof(username)); | |
463 | ||
464 | AuthorizationFreeItemSet(authinfo); | |
465 | } | |
466 | #endif /* HAVE_AUTHORIZATION_H */ | |
ef416fc2 | 467 | else if (!strncmp(authorization, "Local", 5) && |
468 | !strcasecmp(con->http.hostname, "localhost")) | |
469 | { | |
470 | /* | |
471 | * Get Local certificate authentication data... | |
472 | */ | |
473 | ||
474 | authorization += 5; | |
80ca4592 | 475 | while (isspace(*authorization & 255)) |
ef416fc2 | 476 | authorization ++; |
477 | ||
478 | if ((localuser = cupsdFindCert(authorization)) != NULL) | |
479 | strlcpy(username, localuser, sizeof(username)); | |
480 | else | |
481 | { | |
482 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
483 | "cupsdAuthorize: Local authentication certificate not " | |
484 | "found!"); | |
485 | return; | |
486 | } | |
487 | } | |
488 | else if (!strncmp(authorization, "Basic", 5) && | |
489 | (type == AUTH_BASIC || type == AUTH_BASICDIGEST)) | |
490 | { | |
491 | /* | |
492 | * Get the Basic authentication data... | |
493 | */ | |
494 | ||
495 | int userlen; /* Username:password length */ | |
496 | ||
497 | ||
498 | authorization += 5; | |
80ca4592 | 499 | while (isspace(*authorization & 255)) |
ef416fc2 | 500 | authorization ++; |
501 | ||
502 | userlen = sizeof(username); | |
503 | httpDecode64_2(username, &userlen, authorization); | |
504 | ||
505 | /* | |
506 | * Pull the username and password out... | |
507 | */ | |
508 | ||
509 | if ((ptr = strchr(username, ':')) == NULL) | |
510 | { | |
511 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
512 | "cupsdAuthorize: Missing Basic password!"); | |
513 | return; | |
514 | } | |
515 | ||
516 | *ptr++ = '\0'; | |
517 | ||
518 | if (!username[0]) | |
519 | { | |
520 | /* | |
521 | * Username must not be empty... | |
522 | */ | |
523 | ||
524 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
525 | "cupsdAuthorize: Empty Basic username!"); | |
526 | return; | |
527 | } | |
528 | ||
529 | if (!*ptr) | |
530 | { | |
531 | /* | |
532 | * Password must not be empty... | |
533 | */ | |
534 | ||
535 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
536 | "cupsdAuthorize: Empty Basic password!"); | |
537 | return; | |
538 | } | |
539 | ||
540 | strlcpy(password, ptr, sizeof(password)); | |
541 | ||
542 | /* | |
543 | * Validate the username and password... | |
544 | */ | |
545 | ||
546 | switch (type) | |
547 | { | |
548 | case AUTH_BASIC : | |
549 | { | |
550 | #if HAVE_LIBPAM | |
551 | /* | |
552 | * Only use PAM to do authentication. This supports MD5 | |
553 | * passwords, among other things... | |
554 | */ | |
555 | ||
556 | pam_handle_t *pamh; /* PAM authentication handle */ | |
557 | int pamerr; /* PAM error code */ | |
558 | struct pam_conv pamdata;/* PAM conversation data */ | |
559 | cupsd_authdata_t data; /* Authentication data */ | |
560 | ||
561 | ||
562 | strlcpy(data.username, username, sizeof(data.username)); | |
563 | strlcpy(data.password, password, sizeof(data.password)); | |
564 | ||
07725fee | 565 | # if defined(__sun) || defined(__hpux) |
e1d6a774 | 566 | pamdata.conv = (int (*)(int, struct pam_message **, |
567 | struct pam_response **, | |
568 | void *))pam_func; | |
569 | # else | |
ef416fc2 | 570 | pamdata.conv = pam_func; |
07725fee | 571 | # endif /* __sun || __hpux */ |
ef416fc2 | 572 | pamdata.appdata_ptr = &data; |
573 | ||
574 | # ifdef __hpux | |
575 | /* | |
576 | * Workaround for HP-UX bug in pam_unix; see pam_func() below for | |
577 | * more info... | |
578 | */ | |
579 | ||
580 | auth_data = &data; | |
581 | # endif /* __hpux */ | |
582 | ||
583 | pamerr = pam_start("cups", username, &pamdata, &pamh); | |
584 | if (pamerr != PAM_SUCCESS) | |
585 | { | |
586 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
587 | "cupsdAuthorize: pam_start() returned %d (%s)!\n", | |
588 | pamerr, pam_strerror(pamh, pamerr)); | |
589 | pam_end(pamh, 0); | |
590 | return; | |
591 | } | |
592 | ||
593 | pamerr = pam_authenticate(pamh, PAM_SILENT); | |
594 | if (pamerr != PAM_SUCCESS) | |
595 | { | |
596 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
597 | "cupsdAuthorize: pam_authenticate() returned %d " | |
598 | "(%s)!\n", | |
599 | pamerr, pam_strerror(pamh, pamerr)); | |
600 | pam_end(pamh, 0); | |
601 | return; | |
602 | } | |
603 | ||
604 | pamerr = pam_acct_mgmt(pamh, PAM_SILENT); | |
605 | if (pamerr != PAM_SUCCESS) | |
606 | { | |
607 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
608 | "cupsdAuthorize: pam_acct_mgmt() returned %d " | |
609 | "(%s)!\n", | |
610 | pamerr, pam_strerror(pamh, pamerr)); | |
611 | pam_end(pamh, 0); | |
612 | return; | |
613 | } | |
614 | ||
615 | pam_end(pamh, PAM_SUCCESS); | |
616 | ||
617 | #elif defined(HAVE_USERSEC_H) | |
618 | /* | |
619 | * Use AIX authentication interface... | |
620 | */ | |
621 | ||
622 | char *authmsg; /* Authentication message */ | |
ef416fc2 | 623 | int reenter; /* ??? */ |
624 | ||
625 | ||
626 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
627 | "cupsdAuthorize: AIX authenticate of username \"%s\"", | |
628 | username); | |
629 | ||
630 | reenter = 1; | |
631 | if (authenticate(username, password, &reenter, &authmsg) != 0) | |
632 | { | |
633 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
634 | "cupsdAuthorize: Unable to authenticate username " | |
635 | "\"%s\": %s", | |
636 | username, strerror(errno)); | |
637 | return; | |
638 | } | |
639 | ||
640 | #else | |
641 | /* | |
642 | * Use normal UNIX password file-based authentication... | |
643 | */ | |
644 | ||
645 | char *pass; /* Encrypted password */ | |
646 | struct passwd *pw; /* User password data */ | |
647 | # ifdef HAVE_SHADOW_H | |
648 | struct spwd *spw; /* Shadow password data */ | |
649 | # endif /* HAVE_SHADOW_H */ | |
650 | ||
651 | ||
652 | pw = getpwnam(username); /* Get the current password */ | |
653 | endpwent(); /* Close the password file */ | |
654 | ||
655 | if (!pw) | |
656 | { | |
657 | /* | |
658 | * No such user... | |
659 | */ | |
660 | ||
661 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
662 | "cupsdAuthorize: Unknown username \"%s\"!", | |
663 | username); | |
80ca4592 | 664 | return; |
ef416fc2 | 665 | } |
666 | ||
667 | # ifdef HAVE_SHADOW_H | |
668 | spw = getspnam(username); | |
669 | endspent(); | |
670 | ||
671 | if (!spw && !strcmp(pw->pw_passwd, "x")) | |
672 | { | |
673 | /* | |
674 | * Don't allow blank passwords! | |
675 | */ | |
676 | ||
677 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
678 | "cupsdAuthorize: Username \"%s\" has no shadow " | |
679 | "password!", username); | |
680 | return; | |
681 | } | |
682 | ||
683 | if (spw && !spw->sp_pwdp[0] && !pw->pw_passwd[0]) | |
684 | # else | |
685 | if (!pw->pw_passwd[0]) | |
686 | # endif /* HAVE_SHADOW_H */ | |
687 | { | |
688 | /* | |
689 | * Don't allow blank passwords! | |
690 | */ | |
691 | ||
692 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
693 | "cupsdAuthorize: Username \"%s\" has no password!", | |
694 | username); | |
695 | return; | |
696 | } | |
697 | ||
698 | /* | |
699 | * OK, the password isn't blank, so compare with what came from the | |
700 | * client... | |
701 | */ | |
702 | ||
703 | pass = cups_crypt(password, pw->pw_passwd); | |
704 | ||
705 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
706 | "cupsdAuthorize: pw_passwd=\"%s\", crypt=\"%s\"", | |
707 | pw->pw_passwd, pass); | |
708 | ||
709 | if (!pass || strcmp(pw->pw_passwd, pass)) | |
710 | { | |
711 | # ifdef HAVE_SHADOW_H | |
712 | if (spw) | |
713 | { | |
714 | pass = cups_crypt(password, spw->sp_pwdp); | |
715 | ||
716 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
717 | "cupsdAuthorize: sp_pwdp=\"%s\", crypt=\"%s\"", | |
718 | spw->sp_pwdp, pass); | |
719 | ||
720 | if (pass == NULL || strcmp(spw->sp_pwdp, pass)) | |
721 | { | |
722 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
723 | "cupsdAuthorize: Authentication failed for " | |
724 | "user \"%s\"!", | |
725 | username); | |
726 | return; | |
727 | } | |
728 | } | |
729 | else | |
730 | # endif /* HAVE_SHADOW_H */ | |
731 | { | |
732 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
733 | "cupsdAuthorize: Authentication failed for " | |
734 | "user \"%s\"!", | |
735 | username); | |
736 | return; | |
737 | } | |
738 | } | |
739 | #endif /* HAVE_LIBPAM */ | |
740 | } | |
741 | break; | |
742 | ||
743 | case AUTH_BASICDIGEST : | |
744 | /* | |
745 | * Do Basic authentication with the Digest password file... | |
746 | */ | |
747 | ||
e1d6a774 | 748 | if (!get_md5_password(username, NULL, md5)) |
ef416fc2 | 749 | { |
750 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
751 | "cupsdAuthorize: Unknown MD5 username \"%s\"!", | |
752 | username); | |
753 | return; | |
754 | } | |
755 | ||
756 | httpMD5(username, "CUPS", password, basicmd5); | |
757 | ||
758 | if (strcmp(md5, basicmd5)) | |
759 | { | |
760 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
761 | "cupsdAuthorize: Authentication failed for \"%s\"!", | |
762 | username); | |
763 | return; | |
764 | } | |
765 | break; | |
766 | } | |
767 | } | |
768 | else if (!strncmp(authorization, "Digest", 6) && type == AUTH_DIGEST) | |
769 | { | |
770 | /* | |
771 | * Get the username, password, and nonce from the Digest attributes... | |
772 | */ | |
773 | ||
774 | if (!httpGetSubField2(&(con->http), HTTP_FIELD_AUTHORIZATION, "username", | |
775 | username, sizeof(username)) || !username[0]) | |
776 | { | |
777 | /* | |
778 | * Username must not be empty... | |
779 | */ | |
780 | ||
781 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
782 | "cupsdAuthorize: Empty or missing Digest username!"); | |
783 | return; | |
784 | } | |
785 | ||
786 | if (!httpGetSubField2(&(con->http), HTTP_FIELD_AUTHORIZATION, "response", | |
787 | password, sizeof(password)) || !password[0]) | |
788 | { | |
789 | /* | |
790 | * Password must not be empty... | |
791 | */ | |
792 | ||
793 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
794 | "cupsdAuthorize: Empty or missing Digest password!"); | |
795 | return; | |
796 | } | |
797 | ||
798 | if (!httpGetSubField(&(con->http), HTTP_FIELD_AUTHORIZATION, "nonce", | |
799 | nonce)) | |
800 | { | |
801 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
802 | "cupsdAuthorize: No nonce value for Digest " | |
803 | "authentication!"); | |
804 | return; | |
805 | } | |
806 | ||
807 | if (strcmp(con->http.hostname, nonce)) | |
808 | { | |
809 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
810 | "cupsdAuthorize: Bad nonce value, expected \"%s\", " | |
811 | "got \"%s\"!", con->http.hostname, nonce); | |
812 | return; | |
813 | } | |
814 | ||
815 | /* | |
816 | * Validate the username and password... | |
817 | */ | |
818 | ||
e1d6a774 | 819 | if (!get_md5_password(username, NULL, md5)) |
ef416fc2 | 820 | { |
821 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
822 | "cupsdAuthorize: Unknown MD5 username \"%s\"!", | |
823 | username); | |
824 | return; | |
825 | } | |
826 | ||
827 | httpMD5Final(nonce, states[con->http.state], con->uri, md5); | |
828 | ||
829 | if (strcmp(md5, password)) | |
830 | { | |
831 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
832 | "cupsdAuthorize: Authentication failed for \"%s\"!", | |
833 | username); | |
834 | return; | |
835 | } | |
836 | } | |
f7deaa1a | 837 | #ifdef HAVE_GSSAPI |
838 | else if (!strncmp(authorization, "Negotiate", 9) && type == AUTH_KERBEROS) | |
839 | { | |
840 | int len; /* Length of authorization string */ | |
841 | gss_cred_id_t server_creds; /* Server credentials */ | |
842 | gss_ctx_id_t context; /* Authorization context */ | |
843 | OM_uint32 major_status, /* Major status code */ | |
844 | minor_status; /* Minor status code */ | |
845 | gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER, | |
846 | /* Input token from string */ | |
847 | output_token = GSS_C_EMPTY_BUFFER; | |
848 | /* Output token for username */ | |
849 | gss_name_t client_name; /* Client name */ | |
850 | ||
851 | ||
852 | con->gss_output_token.length = 0; | |
853 | ||
854 | /* | |
855 | * Find the start of the Kerberos input token... | |
856 | */ | |
857 | ||
858 | authorization += 9; | |
859 | while (isspace(*authorization & 255)) | |
860 | authorization ++; | |
861 | ||
862 | if (!*authorization) | |
863 | { | |
864 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
865 | "cupsdAuthorize: No authentication data specified."); | |
866 | return; | |
867 | } | |
868 | ||
869 | /* | |
870 | * Get the server credentials... | |
871 | */ | |
872 | ||
873 | if ((server_creds = get_gss_creds(GSSServiceName)) == NULL) | |
874 | { | |
875 | con->no_negotiate = 1; | |
876 | return; | |
877 | } | |
878 | ||
879 | /* | |
880 | * Decode the authorization string to get the input token... | |
881 | */ | |
882 | ||
883 | len = strlen(authorization); | |
884 | input_token.value = malloc(len); | |
885 | input_token.value = httpDecode64_2(input_token.value, &len, | |
886 | authorization); | |
887 | input_token.length = len; | |
888 | ||
889 | /* | |
890 | * Accept the input token to get the authorization info... | |
891 | */ | |
892 | ||
893 | context = GSS_C_NO_CONTEXT; | |
894 | client_name = GSS_C_NO_NAME; | |
895 | major_status = gss_accept_sec_context(&minor_status, | |
896 | &context, | |
897 | server_creds, | |
898 | &input_token, | |
899 | GSS_C_NO_CHANNEL_BINDINGS, | |
900 | &client_name, | |
901 | NULL, | |
902 | &con->gss_output_token, | |
903 | NULL, | |
904 | NULL, | |
905 | &con->gss_delegated_cred); | |
906 | ||
907 | if (GSS_ERROR(major_status)) | |
908 | { | |
909 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, | |
910 | "cupsdAuthorize: Error accepting GSSAPI security " | |
911 | "context"); | |
912 | ||
913 | if (context != GSS_C_NO_CONTEXT) | |
914 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
915 | ||
916 | con->no_negotiate = 1; | |
917 | return; | |
918 | } | |
919 | ||
920 | /* | |
921 | * Get the username associated with the credentials... | |
922 | */ | |
923 | ||
924 | if (major_status == GSS_S_COMPLETE) | |
925 | { | |
926 | major_status = gss_display_name(&minor_status, client_name, | |
927 | &output_token, NULL); | |
928 | ||
929 | if (GSS_ERROR(major_status)) | |
930 | { | |
931 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, | |
932 | "cupsdAuthorize: Error getting username"); | |
933 | gss_release_name(&minor_status, &client_name); | |
934 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
935 | con->no_negotiate = 1; | |
936 | return; | |
937 | } | |
938 | ||
939 | gss_release_name(&minor_status, &client_name); | |
940 | strlcpy(username, output_token.value, sizeof(username)); | |
941 | ||
942 | gss_release_buffer(&minor_status, &output_token); | |
943 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
944 | } | |
945 | else | |
946 | gss_release_name(&minor_status, &client_name); | |
947 | } | |
948 | #endif /* HAVE_GSSAPI */ | |
ef416fc2 | 949 | else |
950 | { | |
951 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
952 | "cupsdAuthorize: Bad authentication data."); | |
953 | return; | |
954 | } | |
955 | ||
956 | /* | |
957 | * If we get here, then we were able to validate the username and | |
958 | * password - copy the validated username and password to the client | |
959 | * data and return... | |
960 | */ | |
961 | ||
962 | strlcpy(con->username, username, sizeof(con->username)); | |
963 | strlcpy(con->password, password, sizeof(con->password)); | |
964 | ||
965 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAuthorize: username=\"%s\"", | |
966 | con->username); | |
967 | } | |
968 | ||
969 | ||
970 | /* | |
971 | * 'cupsdCheckAuth()' - Check authorization masks. | |
972 | */ | |
973 | ||
974 | int /* O - 1 if mask matches, 0 otherwise */ | |
975 | cupsdCheckAuth( | |
976 | unsigned ip[4], /* I - Client address */ | |
977 | char *name, /* I - Client hostname */ | |
978 | int name_len, /* I - Length of hostname */ | |
979 | int num_masks, /* I - Number of masks */ | |
980 | cupsd_authmask_t *masks) /* I - Masks */ | |
981 | { | |
982 | int i; /* Looping var */ | |
983 | cupsd_netif_t *iface; /* Network interface */ | |
984 | unsigned netip4; /* IPv4 network address */ | |
985 | #ifdef AF_INET6 | |
986 | unsigned netip6[4]; /* IPv6 network address */ | |
987 | #endif /* AF_INET6 */ | |
988 | ||
989 | while (num_masks > 0) | |
990 | { | |
991 | switch (masks->type) | |
992 | { | |
993 | case AUTH_INTERFACE : | |
994 | /* | |
995 | * Check for a match with a network interface... | |
996 | */ | |
997 | ||
998 | netip4 = htonl(ip[3]); | |
999 | ||
1000 | #ifdef AF_INET6 | |
1001 | netip6[0] = htonl(ip[0]); | |
1002 | netip6[1] = htonl(ip[1]); | |
1003 | netip6[2] = htonl(ip[2]); | |
1004 | netip6[3] = htonl(ip[3]); | |
1005 | #endif /* AF_INET6 */ | |
1006 | ||
1007 | if (!strcmp(masks->mask.name.name, "*")) | |
1008 | { | |
1009 | /* | |
1010 | * Check against all local interfaces... | |
1011 | */ | |
1012 | ||
1013 | cupsdNetIFUpdate(); | |
1014 | ||
e00b005a | 1015 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
1016 | iface; | |
1017 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) | |
ef416fc2 | 1018 | { |
1019 | /* | |
1020 | * Only check local interfaces... | |
1021 | */ | |
1022 | ||
1023 | if (!iface->is_local) | |
1024 | continue; | |
1025 | ||
1026 | if (iface->address.addr.sa_family == AF_INET) | |
1027 | { | |
1028 | /* | |
1029 | * Check IPv4 address... | |
1030 | */ | |
1031 | ||
1032 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1033 | (iface->address.ipv4.sin_addr.s_addr & | |
1034 | iface->mask.ipv4.sin_addr.s_addr)) | |
1035 | return (1); | |
1036 | } | |
1037 | #ifdef AF_INET6 | |
1038 | else | |
1039 | { | |
1040 | /* | |
1041 | * Check IPv6 address... | |
1042 | */ | |
1043 | ||
1044 | for (i = 0; i < 4; i ++) | |
1045 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1046 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1047 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1048 | break; | |
1049 | ||
1050 | if (i == 4) | |
1051 | return (1); | |
1052 | } | |
1053 | #endif /* AF_INET6 */ | |
1054 | } | |
1055 | } | |
1056 | else | |
1057 | { | |
1058 | /* | |
1059 | * Check the named interface... | |
1060 | */ | |
1061 | ||
e00b005a | 1062 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
ed486911 | 1063 | iface; |
e00b005a | 1064 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) |
ef416fc2 | 1065 | { |
ed486911 | 1066 | if (strcmp(masks->mask.name.name, iface->name)) |
1067 | continue; | |
1068 | ||
ef416fc2 | 1069 | if (iface->address.addr.sa_family == AF_INET) |
1070 | { | |
1071 | /* | |
1072 | * Check IPv4 address... | |
1073 | */ | |
1074 | ||
1075 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1076 | (iface->address.ipv4.sin_addr.s_addr & | |
1077 | iface->mask.ipv4.sin_addr.s_addr)) | |
1078 | return (1); | |
1079 | } | |
1080 | #ifdef AF_INET6 | |
1081 | else | |
1082 | { | |
1083 | /* | |
1084 | * Check IPv6 address... | |
1085 | */ | |
1086 | ||
1087 | for (i = 0; i < 4; i ++) | |
1088 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1089 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1090 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1091 | break; | |
1092 | ||
1093 | if (i == 4) | |
1094 | return (1); | |
1095 | } | |
1096 | #endif /* AF_INET6 */ | |
1097 | } | |
1098 | } | |
1099 | break; | |
1100 | ||
1101 | case AUTH_NAME : | |
1102 | /* | |
1103 | * Check for exact name match... | |
1104 | */ | |
1105 | ||
1106 | if (!strcasecmp(name, masks->mask.name.name)) | |
1107 | return (1); | |
1108 | ||
1109 | /* | |
1110 | * Check for domain match... | |
1111 | */ | |
1112 | ||
1113 | if (name_len >= masks->mask.name.length && | |
1114 | masks->mask.name.name[0] == '.' && | |
bd7854cb | 1115 | !strcasecmp(name + name_len - masks->mask.name.length, |
1116 | masks->mask.name.name)) | |
ef416fc2 | 1117 | return (1); |
1118 | break; | |
1119 | ||
1120 | case AUTH_IP : | |
1121 | /* | |
1122 | * Check for IP/network address match... | |
1123 | */ | |
1124 | ||
1125 | for (i = 0; i < 4; i ++) | |
1126 | if ((ip[i] & masks->mask.ip.netmask[i]) != | |
1127 | masks->mask.ip.address[i]) | |
1128 | break; | |
1129 | ||
1130 | if (i == 4) | |
1131 | return (1); | |
1132 | break; | |
1133 | } | |
1134 | ||
1135 | masks ++; | |
1136 | num_masks --; | |
1137 | } | |
1138 | ||
1139 | return (0); | |
1140 | } | |
1141 | ||
1142 | ||
1143 | /* | |
1144 | * 'cupsdCheckGroup()' - Check for a user's group membership. | |
1145 | */ | |
1146 | ||
1147 | int /* O - 1 if user is a member, 0 otherwise */ | |
1148 | cupsdCheckGroup( | |
1149 | const char *username, /* I - User name */ | |
1150 | struct passwd *user, /* I - System user info */ | |
1151 | const char *groupname) /* I - Group name */ | |
1152 | { | |
1153 | int i; /* Looping var */ | |
1154 | struct group *group; /* System group info */ | |
1155 | char junk[33]; /* MD5 password (not used) */ | |
bd7854cb | 1156 | #ifdef HAVE_MBR_UID_TO_UUID |
1157 | uuid_t useruuid, /* UUID for username */ | |
1158 | groupuuid; /* UUID for groupname */ | |
1159 | int is_member; /* True if user is a member of group */ | |
1160 | #endif /* HAVE_MBR_UID_TO_UUID */ | |
ef416fc2 | 1161 | |
1162 | ||
1163 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1164 | "cupsdCheckGroup(username=\"%s\", user=%p, groupname=\"%s\")", | |
1165 | username, user, groupname); | |
1166 | ||
1167 | /* | |
1168 | * Validate input... | |
1169 | */ | |
1170 | ||
1171 | if (!username || !groupname) | |
1172 | return (0); | |
1173 | ||
1174 | /* | |
1175 | * Check to see if the user is a member of the named group... | |
1176 | */ | |
1177 | ||
1178 | group = getgrnam(groupname); | |
1179 | endgrent(); | |
1180 | ||
1181 | if (group != NULL) | |
1182 | { | |
1183 | /* | |
1184 | * Group exists, check it... | |
1185 | */ | |
1186 | ||
1187 | for (i = 0; group->gr_mem[i]; i ++) | |
1188 | if (!strcasecmp(username, group->gr_mem[i])) | |
1189 | return (1); | |
1190 | } | |
1191 | ||
1192 | /* | |
1193 | * Group doesn't exist or user not in group list, check the group ID | |
1194 | * against the user's group ID... | |
1195 | */ | |
1196 | ||
1197 | if (user && group && group->gr_gid == user->pw_gid) | |
1198 | return (1); | |
1199 | ||
bd7854cb | 1200 | #ifdef HAVE_MBR_UID_TO_UUID |
1201 | /* | |
1202 | * Check group membership through MacOS X membership API... | |
1203 | */ | |
1204 | ||
1205 | if (user && group) | |
1206 | if (!mbr_uid_to_uuid(user->pw_uid, useruuid)) | |
1207 | if (!mbr_gid_to_uuid(group->gr_gid, groupuuid)) | |
1208 | if (!mbr_check_membership(useruuid, groupuuid, &is_member)) | |
1209 | if (is_member) | |
1210 | return (1); | |
1211 | #endif /* HAVE_MBR_UID_TO_UUID */ | |
1212 | ||
ef416fc2 | 1213 | /* |
1214 | * Username not found, group not found, or user is not part of the | |
1215 | * system group... Check for a user and group in the MD5 password | |
1216 | * file... | |
1217 | */ | |
1218 | ||
e1d6a774 | 1219 | if (get_md5_password(username, groupname, junk) != NULL) |
ef416fc2 | 1220 | return (1); |
1221 | ||
1222 | /* | |
1223 | * If we get this far, then the user isn't part of the named group... | |
1224 | */ | |
1225 | ||
1226 | return (0); | |
1227 | } | |
1228 | ||
1229 | ||
1230 | /* | |
1231 | * 'cupsdCopyLocation()' - Make a copy of a location... | |
1232 | */ | |
1233 | ||
1234 | cupsd_location_t * /* O - New location */ | |
1235 | cupsdCopyLocation( | |
1236 | cupsd_location_t **loc) /* IO - Original location */ | |
1237 | { | |
1238 | int i; /* Looping var */ | |
ef416fc2 | 1239 | cupsd_location_t *temp; /* New location */ |
1240 | char location[HTTP_MAX_URI]; | |
1241 | /* Location of resource */ | |
1242 | ||
1243 | ||
ef416fc2 | 1244 | /* |
1245 | * Use a local copy of location because cupsdAddLocation may cause | |
1246 | * this memory to be moved... | |
1247 | */ | |
1248 | ||
1249 | strlcpy(location, (*loc)->location, sizeof(location)); | |
1250 | ||
1251 | if ((temp = cupsdAddLocation(location)) == NULL) | |
1252 | return (NULL); | |
1253 | ||
ef416fc2 | 1254 | /* |
1255 | * Copy the information from the original location to the new one. | |
1256 | */ | |
1257 | ||
1258 | temp->limit = (*loc)->limit; | |
1259 | temp->order_type = (*loc)->order_type; | |
1260 | temp->type = (*loc)->type; | |
1261 | temp->level = (*loc)->level; | |
1262 | temp->satisfy = (*loc)->satisfy; | |
1263 | temp->encryption = (*loc)->encryption; | |
1264 | ||
1265 | if ((temp->num_names = (*loc)->num_names) > 0) | |
1266 | { | |
1267 | /* | |
1268 | * Copy the names array... | |
1269 | */ | |
1270 | ||
1271 | if ((temp->names = calloc(temp->num_names, sizeof(char *))) == NULL) | |
1272 | { | |
1273 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1274 | "cupsdCopyLocation: Unable to allocate memory for %d names: %s", | |
1275 | temp->num_names, strerror(errno)); | |
bd7854cb | 1276 | |
1277 | cupsdDeleteLocation(temp); | |
ef416fc2 | 1278 | return (NULL); |
1279 | } | |
1280 | ||
1281 | for (i = 0; i < temp->num_names; i ++) | |
1282 | if ((temp->names[i] = strdup((*loc)->names[i])) == NULL) | |
1283 | { | |
1284 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1285 | "cupsdCopyLocation: Unable to copy name \"%s\": %s", | |
1286 | (*loc)->names[i], strerror(errno)); | |
1287 | ||
bd7854cb | 1288 | cupsdDeleteLocation(temp); |
ef416fc2 | 1289 | return (NULL); |
1290 | } | |
1291 | } | |
1292 | ||
1293 | if ((temp->num_allow = (*loc)->num_allow) > 0) | |
1294 | { | |
1295 | /* | |
1296 | * Copy allow rules... | |
1297 | */ | |
1298 | ||
1299 | if ((temp->allow = calloc(temp->num_allow, sizeof(cupsd_authmask_t))) == NULL) | |
1300 | { | |
1301 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1302 | "cupsdCopyLocation: Unable to allocate memory for %d allow rules: %s", | |
1303 | temp->num_allow, strerror(errno)); | |
bd7854cb | 1304 | cupsdDeleteLocation(temp); |
ef416fc2 | 1305 | return (NULL); |
1306 | } | |
1307 | ||
1308 | for (i = 0; i < temp->num_allow; i ++) | |
1309 | switch (temp->allow[i].type = (*loc)->allow[i].type) | |
1310 | { | |
1311 | case AUTH_NAME : | |
1312 | temp->allow[i].mask.name.length = (*loc)->allow[i].mask.name.length; | |
1313 | temp->allow[i].mask.name.name = strdup((*loc)->allow[i].mask.name.name); | |
1314 | ||
1315 | if (temp->allow[i].mask.name.name == NULL) | |
1316 | { | |
1317 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1318 | "cupsdCopyLocation: Unable to copy allow name \"%s\": %s", | |
1319 | (*loc)->allow[i].mask.name.name, strerror(errno)); | |
bd7854cb | 1320 | cupsdDeleteLocation(temp); |
ef416fc2 | 1321 | return (NULL); |
1322 | } | |
1323 | break; | |
1324 | case AUTH_IP : | |
1325 | memcpy(&(temp->allow[i].mask.ip), &((*loc)->allow[i].mask.ip), | |
1326 | sizeof(cupsd_ipmask_t)); | |
1327 | break; | |
1328 | } | |
1329 | } | |
1330 | ||
1331 | if ((temp->num_deny = (*loc)->num_deny) > 0) | |
1332 | { | |
1333 | /* | |
1334 | * Copy deny rules... | |
1335 | */ | |
1336 | ||
1337 | if ((temp->deny = calloc(temp->num_deny, sizeof(cupsd_authmask_t))) == NULL) | |
1338 | { | |
1339 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1340 | "cupsdCopyLocation: Unable to allocate memory for %d deny rules: %s", | |
1341 | temp->num_deny, strerror(errno)); | |
bd7854cb | 1342 | cupsdDeleteLocation(temp); |
ef416fc2 | 1343 | return (NULL); |
1344 | } | |
1345 | ||
1346 | for (i = 0; i < temp->num_deny; i ++) | |
1347 | switch (temp->deny[i].type = (*loc)->deny[i].type) | |
1348 | { | |
1349 | case AUTH_NAME : | |
1350 | temp->deny[i].mask.name.length = (*loc)->deny[i].mask.name.length; | |
1351 | temp->deny[i].mask.name.name = strdup((*loc)->deny[i].mask.name.name); | |
1352 | ||
1353 | if (temp->deny[i].mask.name.name == NULL) | |
1354 | { | |
1355 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1356 | "cupsdCopyLocation: Unable to copy deny name \"%s\": %s", | |
1357 | (*loc)->deny[i].mask.name.name, strerror(errno)); | |
bd7854cb | 1358 | cupsdDeleteLocation(temp); |
ef416fc2 | 1359 | return (NULL); |
1360 | } | |
1361 | break; | |
1362 | case AUTH_IP : | |
1363 | memcpy(&(temp->deny[i].mask.ip), &((*loc)->deny[i].mask.ip), | |
1364 | sizeof(cupsd_ipmask_t)); | |
1365 | break; | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | return (temp); | |
1370 | } | |
1371 | ||
1372 | ||
1373 | /* | |
1374 | * 'cupsdDeleteAllLocations()' - Free all memory used for location authorization. | |
1375 | */ | |
1376 | ||
1377 | void | |
1378 | cupsdDeleteAllLocations(void) | |
1379 | { | |
ef416fc2 | 1380 | cupsd_location_t *loc; /* Current location */ |
1381 | ||
1382 | ||
1383 | /* | |
1384 | * Free all of the allow/deny records first... | |
1385 | */ | |
1386 | ||
bd7854cb | 1387 | for (loc = (cupsd_location_t *)cupsArrayFirst(Locations); |
1388 | loc; | |
1389 | loc = (cupsd_location_t *)cupsArrayNext(Locations)) | |
ef416fc2 | 1390 | cupsdDeleteLocation(loc); |
1391 | ||
1392 | /* | |
1393 | * Then free the location array... | |
1394 | */ | |
1395 | ||
bd7854cb | 1396 | cupsArrayDelete(Locations); |
1397 | Locations = NULL; | |
ef416fc2 | 1398 | } |
1399 | ||
1400 | ||
1401 | /* | |
1402 | * 'cupsdDeleteLocation()' - Free all memory used by a location. | |
1403 | */ | |
1404 | ||
1405 | void | |
1406 | cupsdDeleteLocation( | |
1407 | cupsd_location_t *loc) /* I - Location to delete */ | |
1408 | { | |
1409 | int i; /* Looping var */ | |
1410 | cupsd_authmask_t *mask; /* Current mask */ | |
1411 | ||
1412 | ||
bd7854cb | 1413 | cupsArrayRemove(Locations, loc); |
1414 | ||
ef416fc2 | 1415 | for (i = loc->num_names - 1; i >= 0; i --) |
1416 | free(loc->names[i]); | |
1417 | ||
1418 | if (loc->num_names > 0) | |
1419 | free(loc->names); | |
1420 | ||
1421 | for (i = loc->num_allow, mask = loc->allow; i > 0; i --, mask ++) | |
1422 | if (mask->type == AUTH_NAME || mask->type == AUTH_INTERFACE) | |
1423 | free(mask->mask.name.name); | |
1424 | ||
1425 | if (loc->num_allow > 0) | |
1426 | free(loc->allow); | |
1427 | ||
1428 | for (i = loc->num_deny, mask = loc->deny; i > 0; i --, mask ++) | |
1429 | if (mask->type == AUTH_NAME || mask->type == AUTH_INTERFACE) | |
1430 | free(mask->mask.name.name); | |
1431 | ||
1432 | if (loc->num_deny > 0) | |
1433 | free(loc->deny); | |
bd7854cb | 1434 | |
1435 | free(loc->location); | |
1436 | free(loc); | |
ef416fc2 | 1437 | } |
1438 | ||
1439 | ||
1440 | /* | |
1441 | * 'cupsdDenyHost()' - Add a host name that is not allowed to access the | |
1442 | * location. | |
1443 | */ | |
1444 | ||
1445 | void | |
1446 | cupsdDenyHost(cupsd_location_t *loc, /* I - Location to add to */ | |
1447 | char *name) /* I - Name of host or domain to add */ | |
1448 | { | |
1449 | cupsd_authmask_t *temp; /* New host/domain mask */ | |
1450 | char ifname[32], /* Interface name */ | |
1451 | *ifptr; /* Pointer to end of name */ | |
1452 | ||
1453 | ||
1454 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdDenyHost(loc=%p(%s), name=\"%s\")", | |
e1d6a774 | 1455 | loc, loc->location ? loc->location : "nil", name); |
ef416fc2 | 1456 | |
1457 | if ((temp = add_deny(loc)) == NULL) | |
1458 | return; | |
1459 | ||
bd7854cb | 1460 | if (!strcasecmp(name, "@LOCAL")) |
ef416fc2 | 1461 | { |
1462 | /* | |
1463 | * Deny *interface*... | |
1464 | */ | |
1465 | ||
1466 | temp->type = AUTH_INTERFACE; | |
1467 | temp->mask.name.name = strdup("*"); | |
1468 | temp->mask.name.length = 1; | |
1469 | } | |
bd7854cb | 1470 | else if (!strncasecmp(name, "@IF(", 4)) |
ef416fc2 | 1471 | { |
1472 | /* | |
1473 | * Deny *interface*... | |
1474 | */ | |
1475 | ||
1476 | strlcpy(ifname, name + 4, sizeof(ifname)); | |
1477 | ||
1478 | ifptr = ifname + strlen(ifname); | |
1479 | ||
1480 | if (ifptr[-1] == ')') | |
1481 | { | |
1482 | ifptr --; | |
1483 | *ifptr = '\0'; | |
1484 | } | |
1485 | ||
1486 | temp->type = AUTH_INTERFACE; | |
1487 | temp->mask.name.name = strdup(ifname); | |
1488 | temp->mask.name.length = ifptr - ifname; | |
1489 | } | |
1490 | else | |
1491 | { | |
1492 | /* | |
1493 | * Deny name... | |
1494 | */ | |
1495 | ||
1496 | temp->type = AUTH_NAME; | |
1497 | temp->mask.name.name = strdup(name); | |
1498 | temp->mask.name.length = strlen(name); | |
1499 | } | |
1500 | } | |
1501 | ||
1502 | ||
1503 | /* | |
1504 | * 'cupsdDenyIP()' - Add an IP address or network that is not allowed to | |
1505 | * access the location. | |
1506 | */ | |
1507 | ||
1508 | void | |
1509 | cupsdDenyIP(cupsd_location_t *loc, /* I - Location to add to */ | |
1510 | unsigned address[4],/* I - IP address to add */ | |
1511 | unsigned netmask[4])/* I - Netmask of address */ | |
1512 | { | |
1513 | cupsd_authmask_t *temp; /* New host/domain mask */ | |
1514 | ||
1515 | ||
1516 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1517 | "cupsdDenyIP(loc=%p(%s), address=%x:%x:%x:%x, netmask=%x:%x:%x:%x)", | |
e1d6a774 | 1518 | loc, loc->location ? loc->location : "nil", |
1519 | address[0], address[1], address[2], address[3], | |
1520 | netmask[0], netmask[1], netmask[2], netmask[3]); | |
ef416fc2 | 1521 | |
1522 | if ((temp = add_deny(loc)) == NULL) | |
1523 | return; | |
1524 | ||
1525 | temp->type = AUTH_IP; | |
1526 | memcpy(temp->mask.ip.address, address, sizeof(temp->mask.ip.address)); | |
1527 | memcpy(temp->mask.ip.netmask, netmask, sizeof(temp->mask.ip.netmask)); | |
1528 | } | |
1529 | ||
1530 | ||
1531 | /* | |
1532 | * 'cupsdFindBest()' - Find the location entry that best matches the resource. | |
1533 | */ | |
1534 | ||
1535 | cupsd_location_t * /* O - Location that matches */ | |
1536 | cupsdFindBest(const char *path, /* I - Resource path */ | |
1537 | http_state_t state) /* I - HTTP state/request */ | |
1538 | { | |
ef416fc2 | 1539 | char uri[HTTP_MAX_URI], |
1540 | /* URI in request... */ | |
1541 | *uriptr; /* Pointer into URI */ | |
1542 | cupsd_location_t *loc, /* Current location */ | |
1543 | *best; /* Best match for location so far */ | |
1544 | int bestlen; /* Length of best match */ | |
1545 | int limit; /* Limit field */ | |
1546 | static const int limits[] = /* Map http_status_t to AUTH_LIMIT_xyz */ | |
1547 | { | |
1548 | AUTH_LIMIT_ALL, | |
1549 | AUTH_LIMIT_OPTIONS, | |
1550 | AUTH_LIMIT_GET, | |
1551 | AUTH_LIMIT_GET, | |
1552 | AUTH_LIMIT_HEAD, | |
1553 | AUTH_LIMIT_POST, | |
1554 | AUTH_LIMIT_POST, | |
1555 | AUTH_LIMIT_POST, | |
1556 | AUTH_LIMIT_PUT, | |
1557 | AUTH_LIMIT_PUT, | |
1558 | AUTH_LIMIT_DELETE, | |
1559 | AUTH_LIMIT_TRACE, | |
1560 | AUTH_LIMIT_ALL, | |
1561 | AUTH_LIMIT_ALL | |
1562 | }; | |
1563 | ||
1564 | ||
1565 | /* | |
1566 | * First copy the connection URI to a local string so we have drop | |
1567 | * any .ppd extension from the pathname in /printers or /classes | |
1568 | * URIs... | |
1569 | */ | |
1570 | ||
1571 | strlcpy(uri, path, sizeof(uri)); | |
1572 | ||
1573 | if (!strncmp(uri, "/printers/", 10) || | |
1574 | !strncmp(uri, "/classes/", 9)) | |
1575 | { | |
1576 | /* | |
1577 | * Check if the URI has .ppd on the end... | |
1578 | */ | |
1579 | ||
1580 | uriptr = uri + strlen(uri) - 4; /* len > 4 if we get here... */ | |
1581 | ||
1582 | if (!strcmp(uriptr, ".ppd")) | |
1583 | *uriptr = '\0'; | |
1584 | } | |
1585 | ||
1586 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: uri = \"%s\"...", uri); | |
1587 | ||
1588 | /* | |
1589 | * Loop through the list of locations to find a match... | |
1590 | */ | |
1591 | ||
1592 | limit = limits[state]; | |
1593 | best = NULL; | |
1594 | bestlen = 0; | |
1595 | ||
bd7854cb | 1596 | for (loc = (cupsd_location_t *)cupsArrayFirst(Locations); |
1597 | loc; | |
1598 | loc = (cupsd_location_t *)cupsArrayNext(Locations)) | |
ef416fc2 | 1599 | { |
1600 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: Location %s Limit %x", | |
e1d6a774 | 1601 | loc->location ? loc->location : "nil", loc->limit); |
ef416fc2 | 1602 | |
1603 | if (!strncmp(uri, "/printers/", 10) || !strncmp(uri, "/classes/", 9)) | |
1604 | { | |
1605 | /* | |
1606 | * Use case-insensitive comparison for queue names... | |
1607 | */ | |
1608 | ||
e1d6a774 | 1609 | if (loc->length > bestlen && loc->location && |
bd7854cb | 1610 | !strncasecmp(uri, loc->location, loc->length) && |
ef416fc2 | 1611 | loc->location[0] == '/' && |
1612 | (limit & loc->limit) != 0) | |
1613 | { | |
1614 | best = loc; | |
1615 | bestlen = loc->length; | |
1616 | } | |
1617 | } | |
1618 | else | |
1619 | { | |
1620 | /* | |
1621 | * Use case-sensitive comparison for other URIs... | |
1622 | */ | |
1623 | ||
e1d6a774 | 1624 | if (loc->length > bestlen && loc->location && |
ef416fc2 | 1625 | !strncmp(uri, loc->location, loc->length) && |
1626 | loc->location[0] == '/' && | |
1627 | (limit & loc->limit) != 0) | |
1628 | { | |
1629 | best = loc; | |
1630 | bestlen = loc->length; | |
1631 | } | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | /* | |
1636 | * Return the match, if any... | |
1637 | */ | |
1638 | ||
1639 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: best = %s", | |
1640 | best ? best->location : "NONE"); | |
1641 | ||
1642 | return (best); | |
1643 | } | |
1644 | ||
1645 | ||
1646 | /* | |
1647 | * 'cupsdFindLocation()' - Find the named location. | |
1648 | */ | |
1649 | ||
1650 | cupsd_location_t * /* O - Location that matches */ | |
1651 | cupsdFindLocation(const char *location) /* I - Connection */ | |
1652 | { | |
bd7854cb | 1653 | cupsd_location_t key; /* Search key */ |
ef416fc2 | 1654 | |
1655 | ||
bd7854cb | 1656 | key.location = (char *)location; |
ef416fc2 | 1657 | |
bd7854cb | 1658 | return ((cupsd_location_t *)cupsArrayFind(Locations, &key)); |
ef416fc2 | 1659 | } |
1660 | ||
1661 | ||
ef416fc2 | 1662 | /* |
1663 | * 'cupsdIsAuthorized()' - Check to see if the user is authorized... | |
1664 | */ | |
1665 | ||
1666 | http_status_t /* O - HTTP_OK if authorized or error code */ | |
1667 | cupsdIsAuthorized(cupsd_client_t *con, /* I - Connection */ | |
1668 | const char *owner)/* I - Owner of object */ | |
1669 | { | |
1670 | int i, j, /* Looping vars */ | |
1671 | auth; /* Authorization status */ | |
1672 | unsigned address[4]; /* Authorization address */ | |
1673 | cupsd_location_t *best; /* Best match for location so far */ | |
1674 | int hostlen; /* Length of hostname */ | |
fa73b229 | 1675 | const char *username; /* Username to authorize */ |
ef416fc2 | 1676 | struct passwd *pw; /* User password data */ |
1677 | static const char * const levels[] = /* Auth levels */ | |
1678 | { | |
1679 | "ANON", | |
1680 | "USER", | |
1681 | "GROUP" | |
1682 | }; | |
1683 | static const char * const types[] = /* Auth types */ | |
1684 | { | |
1685 | "NONE", | |
1686 | "BASIC", | |
1687 | "DIGEST", | |
f7deaa1a | 1688 | "BASICDIGEST", |
1689 | "KERBEROS" | |
ef416fc2 | 1690 | }; |
1691 | ||
1692 | ||
1693 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1694 | "cupsdIsAuthorized: con->uri=\"%s\", con->best=%p(%s)", | |
f301802f | 1695 | con->uri, con->best, con->best ? con->best->location ? |
1696 | con->best->location : "(null)" : ""); | |
fa73b229 | 1697 | if (owner) |
1698 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1699 | "cupsdIsAuthorized: owner=\"%s\"", owner); | |
ef416fc2 | 1700 | |
1701 | /* | |
1702 | * If there is no "best" authentication rule for this request, then | |
1703 | * access is allowed from the local system and denied from other | |
1704 | * addresses... | |
1705 | */ | |
1706 | ||
1707 | if (!con->best) | |
1708 | { | |
1709 | if (!strcmp(con->http.hostname, "localhost") || | |
1710 | !strcmp(con->http.hostname, ServerName)) | |
1711 | return (HTTP_OK); | |
1712 | else | |
1713 | return (HTTP_FORBIDDEN); | |
1714 | } | |
1715 | ||
1716 | best = con->best; | |
1717 | ||
1718 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
bd7854cb | 1719 | "cupsdIsAuthorized: level=AUTH_%s, type=AUTH_%s, " |
1720 | "satisfy=AUTH_SATISFY_%s, num_names=%d", | |
ef416fc2 | 1721 | levels[best->level], types[best->type], |
1722 | best->satisfy ? "ANY" : "ALL", best->num_names); | |
1723 | ||
1724 | if (best->limit == AUTH_LIMIT_IPP) | |
1725 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: op=%x(%s)", | |
1726 | best->op, ippOpString(best->op)); | |
1727 | ||
1728 | /* | |
1729 | * Check host/ip-based accesses... | |
1730 | */ | |
1731 | ||
1732 | #ifdef AF_INET6 | |
1733 | if (con->http.hostaddr->addr.sa_family == AF_INET6) | |
1734 | { | |
1735 | /* | |
1736 | * Copy IPv6 address... | |
1737 | */ | |
1738 | ||
1739 | address[0] = ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[0]); | |
1740 | address[1] = ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[1]); | |
1741 | address[2] = ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2]); | |
1742 | address[3] = ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[3]); | |
1743 | } | |
1744 | else | |
1745 | #endif /* AF_INET6 */ | |
1746 | if (con->http.hostaddr->addr.sa_family == AF_INET) | |
1747 | { | |
1748 | /* | |
1749 | * Copy IPv4 address... | |
1750 | */ | |
1751 | ||
1752 | address[0] = 0; | |
1753 | address[1] = 0; | |
1754 | address[2] = 0; | |
1755 | address[3] = ntohl(con->http.hostaddr->ipv4.sin_addr.s_addr); | |
1756 | } | |
1757 | else | |
1758 | memset(address, 0, sizeof(address)); | |
1759 | ||
1760 | hostlen = strlen(con->http.hostname); | |
1761 | ||
1762 | if (!strcasecmp(con->http.hostname, "localhost")) | |
1763 | { | |
1764 | /* | |
4744bd90 | 1765 | * Access from localhost (127.0.0.1 or ::1) is always allowed... |
ef416fc2 | 1766 | */ |
1767 | ||
1768 | auth = AUTH_ALLOW; | |
1769 | } | |
1770 | else | |
1771 | { | |
1772 | /* | |
1773 | * Do authorization checks on the domain/address... | |
1774 | */ | |
1775 | ||
1776 | switch (best->order_type) | |
1777 | { | |
1778 | default : | |
1779 | auth = AUTH_DENY; /* anti-compiler-warning-code */ | |
1780 | break; | |
1781 | ||
1782 | case AUTH_ALLOW : /* Order Deny,Allow */ | |
1783 | auth = AUTH_ALLOW; | |
1784 | ||
1785 | if (cupsdCheckAuth(address, con->http.hostname, hostlen, | |
1786 | best->num_deny, best->deny)) | |
1787 | auth = AUTH_DENY; | |
1788 | ||
1789 | if (cupsdCheckAuth(address, con->http.hostname, hostlen, | |
1790 | best->num_allow, best->allow)) | |
1791 | auth = AUTH_ALLOW; | |
1792 | break; | |
1793 | ||
1794 | case AUTH_DENY : /* Order Allow,Deny */ | |
1795 | auth = AUTH_DENY; | |
1796 | ||
1797 | if (cupsdCheckAuth(address, con->http.hostname, hostlen, | |
1798 | best->num_allow, best->allow)) | |
1799 | auth = AUTH_ALLOW; | |
1800 | ||
1801 | if (cupsdCheckAuth(address, con->http.hostname, hostlen, | |
1802 | best->num_deny, best->deny)) | |
1803 | auth = AUTH_DENY; | |
1804 | break; | |
1805 | } | |
1806 | } | |
1807 | ||
1808 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: auth=AUTH_%s...", | |
1809 | auth ? "DENY" : "ALLOW"); | |
1810 | ||
1811 | if (auth == AUTH_DENY && best->satisfy == AUTH_SATISFY_ALL) | |
1812 | return (HTTP_FORBIDDEN); | |
1813 | ||
1814 | #ifdef HAVE_SSL | |
1815 | /* | |
1816 | * See if encryption is required... | |
1817 | */ | |
1818 | ||
f7deaa1a | 1819 | if ((best->encryption >= HTTP_ENCRYPT_REQUIRED && !con->http.tls && |
a74454a7 | 1820 | strcasecmp(con->http.hostname, "localhost") && |
f7deaa1a | 1821 | best->satisfy == AUTH_SATISFY_ALL) && |
1822 | !(best->type == AUTH_KERBEROS || | |
1823 | (best->type == AUTH_NONE && DefaultAuthType == AUTH_KERBEROS))) | |
ef416fc2 | 1824 | { |
1825 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1826 | "cupsdIsAuthorized: Need upgrade to TLS..."); | |
1827 | return (HTTP_UPGRADE_REQUIRED); | |
1828 | } | |
1829 | #endif /* HAVE_SSL */ | |
1830 | ||
1831 | /* | |
1832 | * Now see what access level is required... | |
1833 | */ | |
1834 | ||
1835 | if (best->level == AUTH_ANON || /* Anonymous access - allow it */ | |
1836 | (best->type == AUTH_NONE && best->num_names == 0)) | |
1837 | return (HTTP_OK); | |
1838 | ||
fa73b229 | 1839 | if (!con->username[0] && best->type == AUTH_NONE && |
1840 | best->limit == AUTH_LIMIT_IPP) | |
ef416fc2 | 1841 | { |
1842 | /* | |
1843 | * Check for unauthenticated username... | |
1844 | */ | |
1845 | ||
1846 | ipp_attribute_t *attr; /* requesting-user-name attribute */ | |
1847 | ||
1848 | ||
1849 | attr = ippFindAttribute(con->request, "requesting-user-name", IPP_TAG_NAME); | |
1850 | if (attr) | |
1851 | { | |
1852 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1853 | "cupsdIsAuthorized: requesting-user-name=\"%s\"", | |
1854 | attr->values[0].string.text); | |
fa73b229 | 1855 | username = attr->values[0].string.text; |
ef416fc2 | 1856 | } |
fa73b229 | 1857 | else if (best->satisfy == AUTH_SATISFY_ALL || auth == AUTH_DENY) |
ef416fc2 | 1858 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1859 | else | |
1860 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1861 | } | |
fa73b229 | 1862 | else |
1863 | { | |
1864 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: username=\"%s\"", | |
1865 | con->username); | |
1866 | ||
f7deaa1a | 1867 | #ifdef HAVE_AUTHORIZATION_H |
1868 | if (!con->username[0] && !con->authref) | |
1869 | #else | |
fa73b229 | 1870 | if (!con->username[0]) |
f7deaa1a | 1871 | #endif /* HAVE_AUTHORIZATION_H */ |
fa73b229 | 1872 | { |
1873 | if (best->satisfy == AUTH_SATISFY_ALL || auth == AUTH_DENY) | |
1874 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ | |
1875 | else | |
1876 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1877 | } | |
1878 | ||
1879 | username = con->username; | |
1880 | } | |
ef416fc2 | 1881 | |
1882 | /* | |
fa73b229 | 1883 | * OK, got a username. See if we need normal user access, or group |
ef416fc2 | 1884 | * access... (root always matches) |
1885 | */ | |
1886 | ||
fa73b229 | 1887 | if (!strcmp(username, "root")) |
ef416fc2 | 1888 | return (HTTP_OK); |
1889 | ||
1890 | /* | |
1891 | * Get the user info... | |
1892 | */ | |
1893 | ||
f7deaa1a | 1894 | if (username[0]) |
1895 | { | |
1896 | pw = getpwnam(username); | |
1897 | endpwent(); | |
1898 | } | |
1899 | else | |
1900 | pw = NULL; | |
ef416fc2 | 1901 | |
1902 | if (best->level == AUTH_USER) | |
1903 | { | |
1904 | /* | |
1905 | * If there are no names associated with this location, then | |
1906 | * any valid user is OK... | |
1907 | */ | |
1908 | ||
1909 | if (best->num_names == 0) | |
1910 | return (HTTP_OK); | |
1911 | ||
1912 | /* | |
1913 | * Otherwise check the user list and return OK if this user is | |
1914 | * allowed... | |
1915 | */ | |
1916 | ||
1917 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1918 | "cupsdIsAuthorized: Checking user membership..."); | |
1919 | ||
f7deaa1a | 1920 | #ifdef HAVE_AUTHORIZATION_H |
1921 | /* | |
1922 | * If an authorization reference was supplied it must match a right name... | |
1923 | */ | |
1924 | ||
1925 | if (con->authref) | |
1926 | { | |
1927 | for (i = 0; i < best->num_names; i ++) | |
1928 | { | |
1929 | if (!strncasecmp(best->names[i], "@AUTHKEY(", 9) && | |
1930 | check_authref(con, best->names[i] + 9)) | |
1931 | return (HTTP_OK); | |
1932 | else if (!strcasecmp(best->names[i], "@SYSTEM") && | |
1933 | SystemGroupAuthKey && | |
1934 | check_authref(con, SystemGroupAuthKey)) | |
1935 | return (HTTP_OK); | |
1936 | } | |
1937 | ||
1938 | return (HTTP_UNAUTHORIZED); | |
1939 | } | |
1940 | #endif /* HAVE_AUTHORIZATION_H */ | |
1941 | ||
ef416fc2 | 1942 | for (i = 0; i < best->num_names; i ++) |
1943 | { | |
1944 | if (!strcasecmp(best->names[i], "@OWNER") && owner && | |
fa73b229 | 1945 | !strcasecmp(username, owner)) |
ef416fc2 | 1946 | return (HTTP_OK); |
1947 | else if (!strcasecmp(best->names[i], "@SYSTEM")) | |
1948 | { | |
1949 | for (j = 0; j < NumSystemGroups; j ++) | |
fa73b229 | 1950 | if (cupsdCheckGroup(username, pw, SystemGroups[j])) |
ef416fc2 | 1951 | return (HTTP_OK); |
1952 | } | |
1953 | else if (best->names[i][0] == '@') | |
1954 | { | |
fa73b229 | 1955 | if (cupsdCheckGroup(username, pw, best->names[i] + 1)) |
ef416fc2 | 1956 | return (HTTP_OK); |
1957 | } | |
fa73b229 | 1958 | else if (!strcasecmp(username, best->names[i])) |
ef416fc2 | 1959 | return (HTTP_OK); |
1960 | } | |
1961 | ||
1962 | return (HTTP_UNAUTHORIZED); | |
1963 | } | |
1964 | ||
1965 | /* | |
1966 | * Check to see if this user is in any of the named groups... | |
1967 | */ | |
1968 | ||
1969 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1970 | "cupsdIsAuthorized: Checking group membership..."); | |
1971 | ||
1972 | /* | |
1973 | * Check to see if this user is in any of the named groups... | |
1974 | */ | |
1975 | ||
1976 | for (i = 0; i < best->num_names; i ++) | |
1977 | { | |
1978 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1979 | "cupsdIsAuthorized: Checking group \"%s\" membership...", | |
1980 | best->names[i]); | |
1981 | ||
1982 | if (!strcasecmp(best->names[i], "@SYSTEM")) | |
1983 | { | |
1984 | for (j = 0; j < NumSystemGroups; j ++) | |
fa73b229 | 1985 | if (cupsdCheckGroup(username, pw, SystemGroups[j])) |
ef416fc2 | 1986 | return (HTTP_OK); |
1987 | } | |
fa73b229 | 1988 | else if (cupsdCheckGroup(username, pw, best->names[i])) |
ef416fc2 | 1989 | return (HTTP_OK); |
1990 | } | |
1991 | ||
1992 | /* | |
1993 | * The user isn't part of the specified group, so deny access... | |
1994 | */ | |
1995 | ||
1996 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1997 | "cupsdIsAuthorized: User not in group(s)!"); | |
1998 | ||
1999 | return (HTTP_UNAUTHORIZED); | |
2000 | } | |
2001 | ||
2002 | ||
2003 | /* | |
2004 | * 'add_allow()' - Add an allow mask to the location. | |
2005 | */ | |
2006 | ||
2007 | static cupsd_authmask_t * /* O - New mask record */ | |
2008 | add_allow(cupsd_location_t *loc) /* I - Location to add to */ | |
2009 | { | |
2010 | cupsd_authmask_t *temp; /* New mask record */ | |
2011 | ||
2012 | ||
2013 | /* | |
2014 | * Range-check... | |
2015 | */ | |
2016 | ||
2017 | if (loc == NULL) | |
2018 | return (NULL); | |
2019 | ||
2020 | /* | |
2021 | * Try to allocate memory for the record... | |
2022 | */ | |
2023 | ||
2024 | if (loc->num_allow == 0) | |
2025 | temp = malloc(sizeof(cupsd_authmask_t)); | |
2026 | else | |
2027 | temp = realloc(loc->allow, sizeof(cupsd_authmask_t) * (loc->num_allow + 1)); | |
2028 | ||
2029 | if (temp == NULL) | |
2030 | return (NULL); | |
2031 | ||
2032 | loc->allow = temp; | |
2033 | temp += loc->num_allow; | |
2034 | loc->num_allow ++; | |
2035 | ||
2036 | /* | |
2037 | * Clear the mask record and return... | |
2038 | */ | |
2039 | ||
2040 | memset(temp, 0, sizeof(cupsd_authmask_t)); | |
2041 | return (temp); | |
2042 | } | |
2043 | ||
2044 | ||
2045 | /* | |
2046 | * 'add_deny()' - Add a deny mask to the location. | |
2047 | */ | |
2048 | ||
2049 | static cupsd_authmask_t * /* O - New mask record */ | |
2050 | add_deny(cupsd_location_t *loc) /* I - Location to add to */ | |
2051 | { | |
2052 | cupsd_authmask_t *temp; /* New mask record */ | |
2053 | ||
2054 | ||
2055 | /* | |
2056 | * Range-check... | |
2057 | */ | |
2058 | ||
2059 | if (loc == NULL) | |
2060 | return (NULL); | |
2061 | ||
2062 | /* | |
2063 | * Try to allocate memory for the record... | |
2064 | */ | |
2065 | ||
2066 | if (loc->num_deny == 0) | |
2067 | temp = malloc(sizeof(cupsd_authmask_t)); | |
2068 | else | |
2069 | temp = realloc(loc->deny, sizeof(cupsd_authmask_t) * (loc->num_deny + 1)); | |
2070 | ||
2071 | if (temp == NULL) | |
2072 | return (NULL); | |
2073 | ||
2074 | loc->deny = temp; | |
2075 | temp += loc->num_deny; | |
2076 | loc->num_deny ++; | |
2077 | ||
2078 | /* | |
2079 | * Clear the mask record and return... | |
2080 | */ | |
2081 | ||
2082 | memset(temp, 0, sizeof(cupsd_authmask_t)); | |
2083 | return (temp); | |
2084 | } | |
2085 | ||
2086 | ||
f7deaa1a | 2087 | #ifdef HAVE_AUTHORIZATION_H |
2088 | /* | |
2089 | * 'check_authref()' - Check if an authorization services reference has the | |
2090 | * supplied right. | |
2091 | */ | |
2092 | ||
2093 | static int /* O - 1 if right is valid, 0 otherwise */ | |
2094 | check_authref(cupsd_client_t *con, /* I - Connection */ | |
2095 | const char *right) /* I - Right name */ | |
2096 | { | |
2097 | OSStatus status; /* OS Status */ | |
2098 | AuthorizationItem authright; /* Authorization right */ | |
2099 | AuthorizationRights authrights; /* Authorization rights */ | |
2100 | AuthorizationFlags authflags; /* Authorization flags */ | |
2101 | ||
2102 | ||
2103 | /* | |
2104 | * Check to see if the user is allowed to perform the task... | |
2105 | */ | |
2106 | ||
2107 | if (!con->authref) | |
2108 | return (0); | |
2109 | ||
2110 | authright.name = right; | |
2111 | authright.valueLength = 0; | |
2112 | authright.value = NULL; | |
2113 | authright.flags = 0; | |
2114 | ||
2115 | authrights.count = 1; | |
2116 | authrights.items = &authright; | |
2117 | ||
2118 | authflags = kAuthorizationFlagDefaults | | |
2119 | kAuthorizationFlagExtendRights; | |
2120 | ||
2121 | if ((status = AuthorizationCopyRights(con->authref, &authrights, | |
2122 | kAuthorizationEmptyEnvironment, | |
2123 | authflags, NULL)) != 0) | |
2124 | { | |
2125 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2126 | "AuthorizationCopyRights(\"%s\") returned %d (%s)", | |
2127 | authright.name, (int)status, cssmErrorString(status)); | |
2128 | return (0); | |
2129 | } | |
2130 | ||
2131 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2132 | "AuthorizationCopyRights(\"%s\") succeeded!", | |
2133 | authright.name); | |
2134 | ||
2135 | return (1); | |
2136 | } | |
2137 | #endif /* HAVE_AUTHORIZATION_H */ | |
2138 | ||
2139 | ||
bd7854cb | 2140 | /* |
2141 | * 'compare_locations()' - Compare two locations. | |
2142 | */ | |
2143 | ||
2144 | static int /* O - Result of comparison */ | |
2145 | compare_locations(cupsd_location_t *a, /* I - First location */ | |
2146 | cupsd_location_t *b) /* I - Second location */ | |
2147 | { | |
2148 | return (strcmp(b->location, a->location)); | |
2149 | } | |
2150 | ||
2151 | ||
d09495fa | 2152 | #if !HAVE_LIBPAM && !defined(HAVE_USERSEC_H) |
ef416fc2 | 2153 | /* |
2154 | * 'cups_crypt()' - Encrypt the password using the DES or MD5 algorithms, | |
2155 | * as needed. | |
2156 | */ | |
2157 | ||
2158 | static char * /* O - Encrypted password */ | |
2159 | cups_crypt(const char *pw, /* I - Password string */ | |
2160 | const char *salt) /* I - Salt (key) string */ | |
2161 | { | |
bd7854cb | 2162 | if (!strncmp(salt, "$1$", 3)) |
ef416fc2 | 2163 | { |
2164 | /* | |
2165 | * Use MD5 passwords without the benefit of PAM; this is for | |
2166 | * Slackware Linux, and the algorithm was taken from the | |
2167 | * old shadow-19990827/lib/md5crypt.c source code... :( | |
2168 | */ | |
2169 | ||
2170 | int i; /* Looping var */ | |
2171 | unsigned long n; /* Output number */ | |
2172 | int pwlen; /* Length of password string */ | |
2173 | const char *salt_end; /* End of "salt" data for MD5 */ | |
2174 | char *ptr; /* Pointer into result string */ | |
2175 | _cups_md5_state_t state; /* Primary MD5 state info */ | |
2176 | _cups_md5_state_t state2; /* Secondary MD5 state info */ | |
2177 | unsigned char digest[16]; /* MD5 digest result */ | |
2178 | static char result[120]; /* Final password string */ | |
2179 | ||
2180 | ||
2181 | /* | |
2182 | * Get the salt data between dollar signs, e.g. $1$saltdata$md5. | |
2183 | * Get a maximum of 8 characters of salt data after $1$... | |
2184 | */ | |
2185 | ||
2186 | for (salt_end = salt + 3; *salt_end && (salt_end - salt) < 11; salt_end ++) | |
2187 | if (*salt_end == '$') | |
2188 | break; | |
2189 | ||
2190 | /* | |
2191 | * Compute the MD5 sum we need... | |
2192 | */ | |
2193 | ||
2194 | pwlen = strlen(pw); | |
2195 | ||
757d2cad | 2196 | _cupsMD5Init(&state); |
2197 | _cupsMD5Append(&state, (unsigned char *)pw, pwlen); | |
2198 | _cupsMD5Append(&state, (unsigned char *)salt, salt_end - salt); | |
ef416fc2 | 2199 | |
757d2cad | 2200 | _cupsMD5Init(&state2); |
2201 | _cupsMD5Append(&state2, (unsigned char *)pw, pwlen); | |
2202 | _cupsMD5Append(&state2, (unsigned char *)salt + 3, salt_end - salt - 3); | |
2203 | _cupsMD5Append(&state2, (unsigned char *)pw, pwlen); | |
2204 | _cupsMD5Finish(&state2, digest); | |
ef416fc2 | 2205 | |
2206 | for (i = pwlen; i > 0; i -= 16) | |
757d2cad | 2207 | _cupsMD5Append(&state, digest, i > 16 ? 16 : i); |
ef416fc2 | 2208 | |
2209 | for (i = pwlen; i > 0; i >>= 1) | |
757d2cad | 2210 | _cupsMD5Append(&state, (unsigned char *)((i & 1) ? "" : pw), 1); |
ef416fc2 | 2211 | |
757d2cad | 2212 | _cupsMD5Finish(&state, digest); |
ef416fc2 | 2213 | |
2214 | for (i = 0; i < 1000; i ++) | |
2215 | { | |
757d2cad | 2216 | _cupsMD5Init(&state); |
ef416fc2 | 2217 | |
2218 | if (i & 1) | |
757d2cad | 2219 | _cupsMD5Append(&state, (unsigned char *)pw, pwlen); |
ef416fc2 | 2220 | else |
757d2cad | 2221 | _cupsMD5Append(&state, digest, 16); |
ef416fc2 | 2222 | |
2223 | if (i % 3) | |
757d2cad | 2224 | _cupsMD5Append(&state, (unsigned char *)salt + 3, salt_end - salt - 3); |
ef416fc2 | 2225 | |
2226 | if (i % 7) | |
757d2cad | 2227 | _cupsMD5Append(&state, (unsigned char *)pw, pwlen); |
ef416fc2 | 2228 | |
2229 | if (i & 1) | |
757d2cad | 2230 | _cupsMD5Append(&state, digest, 16); |
ef416fc2 | 2231 | else |
757d2cad | 2232 | _cupsMD5Append(&state, (unsigned char *)pw, pwlen); |
ef416fc2 | 2233 | |
757d2cad | 2234 | _cupsMD5Finish(&state, digest); |
ef416fc2 | 2235 | } |
2236 | ||
2237 | /* | |
2238 | * Copy the final sum to the result string and return... | |
2239 | */ | |
2240 | ||
2241 | memcpy(result, salt, salt_end - salt); | |
2242 | ptr = result + (salt_end - salt); | |
2243 | *ptr++ = '$'; | |
2244 | ||
2245 | for (i = 0; i < 5; i ++, ptr += 4) | |
2246 | { | |
2247 | n = (((digest[i] << 8) | digest[i + 6]) << 8); | |
2248 | ||
2249 | if (i < 4) | |
2250 | n |= digest[i + 12]; | |
2251 | else | |
2252 | n |= digest[5]; | |
2253 | ||
2254 | to64(ptr, n, 4); | |
2255 | } | |
2256 | ||
2257 | to64(ptr, digest[11], 2); | |
2258 | ptr += 2; | |
2259 | *ptr = '\0'; | |
2260 | ||
2261 | return (result); | |
2262 | } | |
2263 | else | |
2264 | { | |
2265 | /* | |
2266 | * Use the standard crypt() function... | |
2267 | */ | |
2268 | ||
2269 | return (crypt(pw, salt)); | |
2270 | } | |
2271 | } | |
d09495fa | 2272 | #endif /* !HAVE_LIBPAM && !HAVE_USERSEC_H */ |
ef416fc2 | 2273 | |
2274 | ||
f7deaa1a | 2275 | #ifdef HAVE_GSSAPI |
2276 | /* | |
2277 | * 'get_gss_creds()' - Obtain GSS credentials. | |
2278 | */ | |
2279 | ||
2280 | static gss_cred_id_t /* O - Server credentials */ | |
2281 | get_gss_creds(const char *service_name) /* I - Service name */ | |
2282 | { | |
2283 | OM_uint32 major_status, /* Major status code */ | |
2284 | minor_status; /* Minor status code */ | |
2285 | gss_name_t server_name; /* Server name */ | |
2286 | gss_cred_id_t server_creds; /* Server credentials */ | |
2287 | gss_buffer_desc token = GSS_C_EMPTY_BUFFER; | |
2288 | /* Service name token */ | |
2289 | char buf[1024], /* Service name buffer */ | |
2290 | fqdn[HTTP_MAX_URI]; /* Hostname of server */ | |
2291 | ||
2292 | ||
2293 | snprintf(buf, sizeof(buf), "%s@%s", service_name, | |
2294 | httpGetHostname(NULL, fqdn, sizeof(fqdn))); | |
2295 | ||
2296 | token.value = buf; | |
2297 | token.length = strlen(buf); | |
2298 | server_name = GSS_C_NO_NAME; | |
2299 | major_status = gss_import_name(&minor_status, &token, | |
2300 | GSS_C_NT_HOSTBASED_SERVICE, | |
2301 | &server_name); | |
2302 | ||
2303 | memset(&token, 0, sizeof(token)); | |
2304 | ||
2305 | if (GSS_ERROR(major_status)) | |
2306 | { | |
2307 | cupsdLogGSSMessage(CUPSD_LOG_WARN, major_status, minor_status, | |
2308 | "gss_import_name() failed"); | |
2309 | return (NULL); | |
2310 | } | |
2311 | ||
2312 | major_status = gss_display_name(&minor_status, server_name, &token, NULL); | |
2313 | ||
2314 | if (GSS_ERROR(major_status)) | |
2315 | { | |
2316 | cupsdLogGSSMessage(CUPSD_LOG_WARN, major_status, minor_status, | |
2317 | "gss_display_name() failed"); | |
2318 | return (NULL); | |
2319 | } | |
2320 | ||
2321 | cupsdLogMessage(CUPSD_LOG_INFO, "Attempting to acquire credentials for %s...", | |
2322 | (char *)token.value); | |
2323 | ||
2324 | server_creds = GSS_C_NO_CREDENTIAL; | |
2325 | major_status = gss_acquire_cred(&minor_status, server_name, GSS_C_INDEFINITE, | |
2326 | GSS_C_NO_OID_SET, GSS_C_ACCEPT, | |
2327 | &server_creds, NULL, NULL); | |
2328 | if (GSS_ERROR(major_status)) | |
2329 | { | |
2330 | cupsdLogGSSMessage(CUPSD_LOG_WARN, major_status, minor_status, | |
2331 | "gss_acquire_cred() failed"); | |
2332 | gss_release_name(&minor_status, &server_name); | |
2333 | gss_release_buffer(&minor_status, &token); | |
2334 | return (NULL); | |
2335 | } | |
2336 | ||
2337 | cupsdLogMessage(CUPSD_LOG_INFO, "Credentials acquired successfully for %s.", | |
2338 | (char *)token.value); | |
2339 | ||
2340 | gss_release_name(&minor_status, &server_name); | |
2341 | gss_release_buffer(&minor_status, &token); | |
2342 | ||
2343 | return (server_creds); | |
2344 | } | |
2345 | #endif /* HAVE_GSSAPI */ | |
2346 | ||
2347 | ||
e1d6a774 | 2348 | /* |
2349 | * 'get_md5_password()' - Get an MD5 password. | |
2350 | */ | |
2351 | ||
2352 | static char * /* O - MD5 password string */ | |
2353 | get_md5_password(const char *username, /* I - Username */ | |
2354 | const char *group, /* I - Group */ | |
2355 | char passwd[33]) /* O - MD5 password string */ | |
2356 | { | |
2357 | cups_file_t *fp; /* passwd.md5 file */ | |
2358 | char filename[1024], /* passwd.md5 filename */ | |
2359 | line[256], /* Line from file */ | |
2360 | tempuser[33], /* User from file */ | |
2361 | tempgroup[33]; /* Group from file */ | |
2362 | ||
2363 | ||
2364 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2365 | "get_md5_password(username=\"%s\", group=\"%s\", passwd=%p)", | |
2366 | username, group ? group : "(null)", passwd); | |
2367 | ||
2368 | snprintf(filename, sizeof(filename), "%s/passwd.md5", ServerRoot); | |
2369 | if ((fp = cupsFileOpen(filename, "r")) == NULL) | |
2370 | { | |
2371 | if (errno != ENOENT) | |
2372 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open %s - %s", filename, | |
2373 | strerror(errno)); | |
2374 | ||
2375 | return (NULL); | |
2376 | } | |
2377 | ||
2378 | while (cupsFileGets(fp, line, sizeof(line)) != NULL) | |
2379 | { | |
2380 | if (sscanf(line, "%32[^:]:%32[^:]:%32s", tempuser, tempgroup, passwd) != 3) | |
2381 | { | |
2382 | cupsdLogMessage(CUPSD_LOG_ERROR, "Bad MD5 password line: %s", line); | |
2383 | continue; | |
2384 | } | |
2385 | ||
2386 | if (!strcmp(username, tempuser) && | |
2387 | (group == NULL || !strcmp(group, tempgroup))) | |
2388 | { | |
2389 | /* | |
2390 | * Found the password entry! | |
2391 | */ | |
2392 | ||
2393 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "Found MD5 user %s, group %s...", | |
2394 | username, tempgroup); | |
2395 | ||
2396 | cupsFileClose(fp); | |
2397 | return (passwd); | |
2398 | } | |
2399 | } | |
2400 | ||
2401 | /* | |
2402 | * Didn't find a password entry - return NULL! | |
2403 | */ | |
2404 | ||
2405 | cupsFileClose(fp); | |
2406 | return (NULL); | |
2407 | } | |
2408 | ||
2409 | ||
ef416fc2 | 2410 | #if HAVE_LIBPAM |
2411 | /* | |
2412 | * 'pam_func()' - PAM conversation function. | |
2413 | */ | |
2414 | ||
2415 | static int /* O - Success or failure */ | |
2416 | pam_func( | |
2417 | int num_msg, /* I - Number of messages */ | |
2418 | const struct pam_message **msg, /* I - Messages */ | |
2419 | struct pam_response **resp, /* O - Responses */ | |
2420 | void *appdata_ptr) | |
2421 | /* I - Pointer to connection */ | |
2422 | { | |
2423 | int i; /* Looping var */ | |
2424 | struct pam_response *replies; /* Replies */ | |
2425 | cupsd_authdata_t *data; /* Pointer to auth data */ | |
2426 | ||
2427 | ||
2428 | /* | |
2429 | * Allocate memory for the responses... | |
2430 | */ | |
2431 | ||
2432 | if ((replies = malloc(sizeof(struct pam_response) * num_msg)) == NULL) | |
2433 | return (PAM_CONV_ERR); | |
2434 | ||
2435 | /* | |
2436 | * Answer all of the messages... | |
2437 | */ | |
2438 | ||
2439 | DEBUG_printf(("pam_func: appdata_ptr = %p\n", appdata_ptr)); | |
2440 | ||
2441 | #ifdef __hpux | |
2442 | /* | |
2443 | * Apparently some versions of HP-UX 11 have a broken pam_unix security | |
2444 | * module. This is a workaround... | |
2445 | */ | |
2446 | ||
2447 | data = auth_data; | |
2448 | (void)appdata_ptr; | |
2449 | #else | |
2450 | data = (cupsd_authdata_t *)appdata_ptr; | |
2451 | #endif /* __hpux */ | |
2452 | ||
2453 | for (i = 0; i < num_msg; i ++) | |
2454 | { | |
2455 | DEBUG_printf(("pam_func: Message = \"%s\"\n", msg[i]->msg)); | |
2456 | ||
2457 | switch (msg[i]->msg_style) | |
2458 | { | |
2459 | case PAM_PROMPT_ECHO_ON: | |
2460 | DEBUG_printf(("pam_func: PAM_PROMPT_ECHO_ON, returning \"%s\"...\n", | |
2461 | data->username)); | |
2462 | replies[i].resp_retcode = PAM_SUCCESS; | |
2463 | replies[i].resp = strdup(data->username); | |
2464 | break; | |
2465 | ||
2466 | case PAM_PROMPT_ECHO_OFF: | |
2467 | DEBUG_printf(("pam_func: PAM_PROMPT_ECHO_OFF, returning \"%s\"...\n", | |
2468 | data->password)); | |
2469 | replies[i].resp_retcode = PAM_SUCCESS; | |
2470 | replies[i].resp = strdup(data->password); | |
2471 | break; | |
2472 | ||
2473 | case PAM_TEXT_INFO: | |
2474 | DEBUG_puts("pam_func: PAM_TEXT_INFO..."); | |
2475 | replies[i].resp_retcode = PAM_SUCCESS; | |
2476 | replies[i].resp = NULL; | |
2477 | break; | |
2478 | ||
2479 | case PAM_ERROR_MSG: | |
2480 | DEBUG_puts("pam_func: PAM_ERROR_MSG..."); | |
2481 | replies[i].resp_retcode = PAM_SUCCESS; | |
2482 | replies[i].resp = NULL; | |
2483 | break; | |
2484 | ||
2485 | default: | |
2486 | DEBUG_printf(("pam_func: Unknown PAM message %d...\n", | |
2487 | msg[i]->msg_style)); | |
2488 | free(replies); | |
2489 | return (PAM_CONV_ERR); | |
2490 | } | |
2491 | } | |
2492 | ||
2493 | /* | |
2494 | * Return the responses back to PAM... | |
2495 | */ | |
2496 | ||
2497 | *resp = replies; | |
2498 | ||
2499 | return (PAM_SUCCESS); | |
2500 | } | |
f7deaa1a | 2501 | #elif !defined(HAVE_USERSEC_H) |
ef416fc2 | 2502 | |
2503 | ||
2504 | /* | |
2505 | * 'to64()' - Base64-encode an integer value... | |
2506 | */ | |
2507 | ||
2508 | static void | |
2509 | to64(char *s, /* O - Output string */ | |
2510 | unsigned long v, /* I - Value to encode */ | |
2511 | int n) /* I - Number of digits */ | |
2512 | { | |
2513 | const char *itoa64 = "./0123456789" | |
2514 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
2515 | "abcdefghijklmnopqrstuvwxyz"; | |
2516 | ||
2517 | ||
2518 | for (; n > 0; n --, v >>= 6) | |
2519 | *s++ = itoa64[v & 0x3f]; | |
2520 | } | |
2521 | #endif /* HAVE_LIBPAM */ | |
2522 | ||
2523 | ||
2524 | /* | |
f7deaa1a | 2525 | * End of "$Id: auth.c 6314 2007-03-01 19:11:54Z mike $". |
ef416fc2 | 2526 | */ |