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Commit | Line | Data |
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b423cd4c | 1 | /* |
5ec1fd3d | 2 | * Authorization routines for the CUPS scheduler. |
ef416fc2 | 3 | * |
570933a6 MS |
4 | * Copyright © 2007-2018 by Apple Inc. |
5 | * Copyright © 1997-2007 by Easy Software Products, all rights reserved. | |
f7deaa1a | 6 | * |
5ec1fd3d MS |
7 | * This file contains Kerberos support code, copyright 2006 by |
8 | * Jelmer Vernooij. | |
ef416fc2 | 9 | * |
5ec1fd3d MS |
10 | * These coded instructions, statements, and computer programs are the |
11 | * property of Apple Inc. and are protected by Federal copyright | |
12 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
13 | * which should have been included with this file. If this file is | |
57b7b66b | 14 | * missing or damaged, see the license at "http://www.cups.org/". |
ef416fc2 | 15 | */ |
16 | ||
17 | /* | |
18 | * Include necessary headers... | |
19 | */ | |
20 | ||
21 | #include "cupsd.h" | |
22 | #include <grp.h> | |
23 | #ifdef HAVE_SHADOW_H | |
24 | # include <shadow.h> | |
25 | #endif /* HAVE_SHADOW_H */ | |
26 | #ifdef HAVE_CRYPT_H | |
27 | # include <crypt.h> | |
28 | #endif /* HAVE_CRYPT_H */ | |
29 | #if HAVE_LIBPAM | |
30 | # ifdef HAVE_PAM_PAM_APPL_H | |
31 | # include <pam/pam_appl.h> | |
32 | # else | |
33 | # include <security/pam_appl.h> | |
34 | # endif /* HAVE_PAM_PAM_APPL_H */ | |
35 | #endif /* HAVE_LIBPAM */ | |
bd7854cb | 36 | #ifdef HAVE_MEMBERSHIP_H |
37 | # include <membership.h> | |
38 | #endif /* HAVE_MEMBERSHIP_H */ | |
f7deaa1a | 39 | #ifdef HAVE_AUTHORIZATION_H |
40 | # include <Security/AuthorizationTags.h> | |
41 | # ifdef HAVE_SECBASEPRIV_H | |
42 | # include <Security/SecBasePriv.h> | |
43 | # else | |
44 | extern const char *cssmErrorString(int error); | |
45 | # endif /* HAVE_SECBASEPRIV_H */ | |
46 | #endif /* HAVE_AUTHORIZATION_H */ | |
db1f069b MS |
47 | #ifdef HAVE_SYS_PARAM_H |
48 | # include <sys/param.h> | |
49 | #endif /* HAVE_SYS_PARAM_H */ | |
bc44d920 | 50 | #ifdef HAVE_SYS_UCRED_H |
51 | # include <sys/ucred.h> | |
52 | typedef struct xucred cupsd_ucred_t; | |
53 | # define CUPSD_UCRED_UID(c) (c).cr_uid | |
54 | #else | |
5a9febac | 55 | # ifndef __OpenBSD__ |
bc44d920 | 56 | typedef struct ucred cupsd_ucred_t; |
5a9febac MS |
57 | # else |
58 | typedef struct sockpeercred cupsd_ucred_t; | |
59 | # endif | |
bc44d920 | 60 | # define CUPSD_UCRED_UID(c) (c).uid |
61 | #endif /* HAVE_SYS_UCRED_H */ | |
ef416fc2 | 62 | |
63 | ||
64 | /* | |
65 | * Local functions... | |
66 | */ | |
67 | ||
f7deaa1a | 68 | #ifdef HAVE_AUTHORIZATION_H |
69 | static int check_authref(cupsd_client_t *con, const char *right); | |
70 | #endif /* HAVE_AUTHORIZATION_H */ | |
bd7854cb | 71 | static int compare_locations(cupsd_location_t *a, |
72 | cupsd_location_t *b); | |
10d09e33 | 73 | static cupsd_authmask_t *copy_authmask(cupsd_authmask_t *am, void *data); |
10d09e33 | 74 | static void free_authmask(cupsd_authmask_t *am, void *data); |
ef416fc2 | 75 | #if HAVE_LIBPAM |
76 | static int pam_func(int, const struct pam_message **, | |
77 | struct pam_response **, void *); | |
5a1d7a17 | 78 | #else |
ef416fc2 | 79 | static void to64(char *s, unsigned long v, int n); |
80 | #endif /* HAVE_LIBPAM */ | |
81 | ||
82 | ||
83 | /* | |
84 | * Local structures... | |
85 | */ | |
86 | ||
87 | #if HAVE_LIBPAM | |
88 | typedef struct cupsd_authdata_s /**** Authentication data ****/ | |
89 | { | |
3e7fe0ca MS |
90 | char username[HTTP_MAX_VALUE], /* Username string */ |
91 | password[HTTP_MAX_VALUE]; /* Password string */ | |
ef416fc2 | 92 | } cupsd_authdata_t; |
93 | #endif /* HAVE_LIBPAM */ | |
94 | ||
95 | ||
ef416fc2 | 96 | /* |
10d09e33 | 97 | * 'cupsdAddIPMask()' - Add an IP address authorization mask. |
ef416fc2 | 98 | */ |
99 | ||
10d09e33 MS |
100 | int /* O - 1 on success, 0 on failure */ |
101 | cupsdAddIPMask( | |
102 | cups_array_t **masks, /* IO - Masks array (created as needed) */ | |
103 | const unsigned address[4], /* I - IP address */ | |
104 | const unsigned netmask[4]) /* I - IP netmask */ | |
ef416fc2 | 105 | { |
10d09e33 | 106 | cupsd_authmask_t temp; /* New host/domain mask */ |
ef416fc2 | 107 | |
108 | ||
ffe32673 | 109 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddIPMask(masks=%p(%p), address=%x:%x:%x:%x, netmask=%x:%x:%x:%x)", masks, *masks, address[0], address[1], address[2], address[3], netmask[0], netmask[1], netmask[2], netmask[3]); |
ef416fc2 | 110 | |
10d09e33 MS |
111 | temp.type = CUPSD_AUTH_IP; |
112 | memcpy(temp.mask.ip.address, address, sizeof(temp.mask.ip.address)); | |
113 | memcpy(temp.mask.ip.netmask, netmask, sizeof(temp.mask.ip.netmask)); | |
ef416fc2 | 114 | |
bd7854cb | 115 | /* |
10d09e33 | 116 | * Create the masks array as needed and add... |
bd7854cb | 117 | */ |
118 | ||
10d09e33 MS |
119 | if (!*masks) |
120 | *masks = cupsArrayNew3(NULL, NULL, NULL, 0, | |
121 | (cups_acopy_func_t)copy_authmask, | |
122 | (cups_afree_func_t)free_authmask); | |
ef416fc2 | 123 | |
10d09e33 MS |
124 | return (cupsArrayAdd(*masks, &temp)); |
125 | } | |
ef416fc2 | 126 | |
bd7854cb | 127 | |
10d09e33 MS |
128 | /* |
129 | * 'cupsdAddLocation()' - Add a location for authorization. | |
130 | */ | |
ef416fc2 | 131 | |
10d09e33 MS |
132 | void |
133 | cupsdAddLocation(cupsd_location_t *loc) /* I - Location to add */ | |
134 | { | |
ef416fc2 | 135 | /* |
10d09e33 | 136 | * Make sure the locations array is created... |
ef416fc2 | 137 | */ |
138 | ||
10d09e33 MS |
139 | if (!Locations) |
140 | Locations = cupsArrayNew3((cups_array_func_t)compare_locations, NULL, | |
141 | (cups_ahash_func_t)NULL, 0, | |
142 | (cups_acopy_func_t)NULL, | |
143 | (cups_afree_func_t)cupsdFreeLocation); | |
144 | ||
145 | if (Locations) | |
146 | { | |
147 | cupsArrayAdd(Locations, loc); | |
148 | ||
ffe32673 | 149 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddLocation: Added location \"%s\"", loc->location ? loc->location : "(null)"); |
10d09e33 | 150 | } |
ef416fc2 | 151 | } |
152 | ||
153 | ||
154 | /* | |
155 | * 'cupsdAddName()' - Add a name to a location... | |
156 | */ | |
157 | ||
158 | void | |
159 | cupsdAddName(cupsd_location_t *loc, /* I - Location to add to */ | |
160 | char *name) /* I - Name to add */ | |
161 | { | |
ffe32673 | 162 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddName(loc=%p, name=\"%s\")", loc, name); |
ef416fc2 | 163 | |
10d09e33 MS |
164 | if (!loc->names) |
165 | loc->names = cupsArrayNew3(NULL, NULL, NULL, 0, | |
166 | (cups_acopy_func_t)_cupsStrAlloc, | |
167 | (cups_afree_func_t)_cupsStrFree); | |
ef416fc2 | 168 | |
10d09e33 | 169 | if (!cupsArrayAdd(loc->names, name)) |
ef416fc2 | 170 | { |
171 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
172 | "Unable to duplicate name for location %s: %s", | |
e1d6a774 | 173 | loc->location ? loc->location : "nil", strerror(errno)); |
ef416fc2 | 174 | return; |
175 | } | |
ef416fc2 | 176 | } |
177 | ||
178 | ||
179 | /* | |
10d09e33 | 180 | * 'cupsdAddNameMask()' - Add a host or interface name authorization mask. |
ef416fc2 | 181 | */ |
182 | ||
10d09e33 MS |
183 | int /* O - 1 on success, 0 on failure */ |
184 | cupsdAddNameMask(cups_array_t **masks, /* IO - Masks array (created as needed) */ | |
185 | char *name) /* I - Host or interface name */ | |
ef416fc2 | 186 | { |
10d09e33 | 187 | cupsd_authmask_t temp; /* New host/domain mask */ |
ef416fc2 | 188 | char ifname[32], /* Interface name */ |
189 | *ifptr; /* Pointer to end of name */ | |
190 | ||
191 | ||
ffe32673 | 192 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddNameMask(masks=%p(%p), name=\"%s\")", masks, *masks, name); |
ef416fc2 | 193 | |
88f9aafc | 194 | if (!_cups_strcasecmp(name, "@LOCAL")) |
ef416fc2 | 195 | { |
196 | /* | |
10d09e33 | 197 | * Deny *interface*... |
ef416fc2 | 198 | */ |
199 | ||
10d09e33 MS |
200 | temp.type = CUPSD_AUTH_INTERFACE; |
201 | temp.mask.name.name = (char *)"*"; | |
ef416fc2 | 202 | } |
88f9aafc | 203 | else if (!_cups_strncasecmp(name, "@IF(", 4)) |
ef416fc2 | 204 | { |
205 | /* | |
10d09e33 | 206 | * Deny *interface*... |
ef416fc2 | 207 | */ |
208 | ||
209 | strlcpy(ifname, name + 4, sizeof(ifname)); | |
210 | ||
10d09e33 | 211 | ifptr = ifname + strlen(ifname) - 1; |
ef416fc2 | 212 | |
10d09e33 | 213 | if (ifptr >= ifname && *ifptr == ')') |
ef416fc2 | 214 | { |
215 | ifptr --; | |
216 | *ifptr = '\0'; | |
217 | } | |
218 | ||
10d09e33 MS |
219 | temp.type = CUPSD_AUTH_INTERFACE; |
220 | temp.mask.name.name = ifname; | |
ef416fc2 | 221 | } |
222 | else | |
223 | { | |
224 | /* | |
10d09e33 | 225 | * Deny name... |
ef416fc2 | 226 | */ |
227 | ||
10d09e33 MS |
228 | if (*name == '*') |
229 | name ++; | |
ef416fc2 | 230 | |
10d09e33 MS |
231 | temp.type = CUPSD_AUTH_NAME; |
232 | temp.mask.name.name = (char *)name; | |
233 | } | |
ef416fc2 | 234 | |
10d09e33 MS |
235 | /* |
236 | * Set the name length... | |
237 | */ | |
ef416fc2 | 238 | |
10d09e33 | 239 | temp.mask.name.length = strlen(temp.mask.name.name); |
ef416fc2 | 240 | |
10d09e33 MS |
241 | /* |
242 | * Create the masks array as needed and add... | |
243 | */ | |
ef416fc2 | 244 | |
10d09e33 MS |
245 | if (!*masks) |
246 | *masks = cupsArrayNew3(NULL, NULL, NULL, 0, | |
247 | (cups_acopy_func_t)copy_authmask, | |
248 | (cups_afree_func_t)free_authmask); | |
ef416fc2 | 249 | |
10d09e33 | 250 | return (cupsArrayAdd(*masks, &temp)); |
ef416fc2 | 251 | } |
252 | ||
253 | ||
254 | /* | |
255 | * 'cupsdAuthorize()' - Validate any authorization credentials. | |
256 | */ | |
257 | ||
258 | void | |
259 | cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */ | |
260 | { | |
261 | int type; /* Authentication type */ | |
f7deaa1a | 262 | const char *authorization; /* Pointer into Authorization string */ |
263 | char *ptr, /* Pointer into string */ | |
3e7fe0ca MS |
264 | username[HTTP_MAX_VALUE], |
265 | /* Username string */ | |
266 | password[HTTP_MAX_VALUE]; | |
267 | /* Password string */ | |
db0bd74a | 268 | cupsd_cert_t *localuser; /* Certificate username */ |
ef416fc2 | 269 | |
270 | ||
271 | /* | |
272 | * Locate the best matching location so we know what kind of | |
273 | * authentication to expect... | |
274 | */ | |
275 | ||
996acce8 | 276 | con->best = cupsdFindBest(con->uri, httpGetState(con->http)); |
5bd77a73 | 277 | con->type = CUPSD_AUTH_NONE; |
ef416fc2 | 278 | |
ffe32673 | 279 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "con->uri=\"%s\", con->best=%p(%s)", con->uri, con->best, con->best ? con->best->location : ""); |
ef416fc2 | 280 | |
5bd77a73 | 281 | if (con->best && con->best->type != CUPSD_AUTH_NONE) |
7ff4fea9 | 282 | { |
5bd77a73 | 283 | if (con->best->type == CUPSD_AUTH_DEFAULT) |
dcb445bc | 284 | type = cupsdDefaultAuthType(); |
7ff4fea9 MS |
285 | else |
286 | type = con->best->type; | |
287 | } | |
ef416fc2 | 288 | else |
dcb445bc | 289 | type = cupsdDefaultAuthType(); |
ef416fc2 | 290 | |
291 | /* | |
292 | * Decode the Authorization string... | |
293 | */ | |
294 | ||
996acce8 | 295 | authorization = httpGetField(con->http, HTTP_FIELD_AUTHORIZATION); |
ef416fc2 | 296 | |
ef416fc2 | 297 | username[0] = '\0'; |
298 | password[0] = '\0'; | |
299 | ||
07ed0e9a MS |
300 | #ifdef HAVE_GSSAPI |
301 | con->gss_uid = 0; | |
302 | #endif /* HAVE_GSSAPI */ | |
303 | ||
f7deaa1a | 304 | #ifdef HAVE_AUTHORIZATION_H |
305 | if (con->authref) | |
306 | { | |
307 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
308 | con->authref = NULL; | |
309 | } | |
310 | #endif /* HAVE_AUTHORIZATION_H */ | |
311 | ||
2fb76298 | 312 | if (!*authorization) |
ef416fc2 | 313 | { |
314 | /* | |
315 | * No authorization data provided, return early... | |
316 | */ | |
317 | ||
ffe32673 | 318 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "No authentication data provided."); |
ef416fc2 | 319 | return; |
320 | } | |
f7deaa1a | 321 | #ifdef HAVE_AUTHORIZATION_H |
c8fef167 | 322 | else if (!strncmp(authorization, "AuthRef ", 8) && |
5ec1fd3d | 323 | httpAddrLocalhost(httpGetAddress(con->http))) |
f7deaa1a | 324 | { |
325 | OSStatus status; /* Status */ | |
e0660879 MS |
326 | char authdata[HTTP_MAX_VALUE]; |
327 | /* Nonce value from client */ | |
f7deaa1a | 328 | int authlen; /* Auth string length */ |
329 | AuthorizationItemSet *authinfo; /* Authorization item set */ | |
330 | ||
331 | /* | |
332 | * Get the Authorization Services data... | |
333 | */ | |
334 | ||
c8fef167 | 335 | authorization += 8; |
f7deaa1a | 336 | while (isspace(*authorization & 255)) |
337 | authorization ++; | |
338 | ||
e0660879 MS |
339 | authlen = sizeof(authdata); |
340 | httpDecode64_2(authdata, &authlen, authorization); | |
f7deaa1a | 341 | |
342 | if (authlen != kAuthorizationExternalFormLength) | |
343 | { | |
ffe32673 | 344 | cupsdLogClient(con, CUPSD_LOG_ERROR, "External Authorization reference size is incorrect."); |
f7deaa1a | 345 | return; |
346 | } | |
347 | ||
e0660879 | 348 | if ((status = AuthorizationCreateFromExternalForm((AuthorizationExternalForm *)authdata, &con->authref)) != 0) |
f7deaa1a | 349 | { |
ffe32673 | 350 | cupsdLogClient(con, CUPSD_LOG_ERROR, "AuthorizationCreateFromExternalForm returned %d (%s)", (int)status, cssmErrorString(status)); |
f7deaa1a | 351 | return; |
352 | } | |
353 | ||
c8fef167 | 354 | username[0] = '\0'; |
ed6e7faf | 355 | |
c8fef167 | 356 | if (!AuthorizationCopyInfo(con->authref, kAuthorizationEnvironmentUsername, |
bf3816c7 | 357 | &authinfo)) |
e4572d57 | 358 | { |
ed6e7faf MS |
359 | if (authinfo->count == 1 && authinfo->items[0].value && |
360 | authinfo->items[0].valueLength >= 2) | |
c8fef167 | 361 | { |
ed6e7faf MS |
362 | strlcpy(username, authinfo->items[0].value, sizeof(username)); |
363 | ||
ffe32673 | 364 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using AuthRef.", username); |
c8fef167 MS |
365 | } |
366 | ||
e4572d57 | 367 | AuthorizationFreeItemSet(authinfo); |
e4572d57 | 368 | } |
355e94dc | 369 | |
c8fef167 MS |
370 | if (!username[0]) |
371 | { | |
372 | /* | |
373 | * No username in AuthRef, grab username using peer credentials... | |
374 | */ | |
375 | ||
376 | struct passwd *pwd; /* Password entry for this user */ | |
377 | cupsd_ucred_t peercred; /* Peer credentials */ | |
378 | socklen_t peersize; /* Size of peer credentials */ | |
379 | ||
380 | peersize = sizeof(peercred); | |
381 | ||
996acce8 | 382 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
c8fef167 | 383 | { |
ffe32673 | 384 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
c8fef167 MS |
385 | return; |
386 | } | |
387 | ||
388 | if ((pwd = getpwuid(CUPSD_UCRED_UID(peercred))) == NULL) | |
389 | { | |
ffe32673 | 390 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to find UID %d for peer credentials.", (int)CUPSD_UCRED_UID(peercred)); |
c8fef167 MS |
391 | return; |
392 | } | |
393 | ||
394 | strlcpy(username, pwd->pw_name, sizeof(username)); | |
395 | ||
ffe32673 | 396 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using AuthRef + PeerCred.", username); |
c8fef167 MS |
397 | } |
398 | ||
5bd77a73 | 399 | con->type = CUPSD_AUTH_BASIC; |
f7deaa1a | 400 | } |
401 | #endif /* HAVE_AUTHORIZATION_H */ | |
bc44d920 | 402 | #if defined(SO_PEERCRED) && defined(AF_LOCAL) |
403 | else if (!strncmp(authorization, "PeerCred ", 9) && | |
0d40cb1e | 404 | con->http->hostaddr->addr.sa_family == AF_LOCAL && con->best) |
bc44d920 | 405 | { |
406 | /* | |
407 | * Use peer credentials from domain socket connection... | |
408 | */ | |
409 | ||
410 | struct passwd *pwd; /* Password entry for this user */ | |
411 | cupsd_ucred_t peercred; /* Peer credentials */ | |
412 | socklen_t peersize; /* Size of peer credentials */ | |
f14324a7 MS |
413 | #ifdef HAVE_AUTHORIZATION_H |
414 | const char *name; /* Authorizing name */ | |
6961465f MS |
415 | int no_peer = 0; /* Don't allow peer credentials? */ |
416 | ||
417 | /* | |
418 | * See if we should allow peer credentials... | |
419 | */ | |
bc44d920 | 420 | |
f14324a7 MS |
421 | for (name = (char *)cupsArrayFirst(con->best->names); |
422 | name; | |
423 | name = (char *)cupsArrayNext(con->best->names)) | |
6961465f | 424 | { |
dcb445bc MS |
425 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) || |
426 | !_cups_strcasecmp(name, "@SYSTEM")) | |
f14324a7 | 427 | { |
6961465f MS |
428 | /* Normally don't want peer credentials if we need an auth key... */ |
429 | no_peer = 1; | |
430 | } | |
431 | else if (!_cups_strcasecmp(name, "@OWNER")) | |
432 | { | |
433 | /* but if @OWNER is present then we allow it... */ | |
434 | no_peer = 0; | |
435 | break; | |
f14324a7 | 436 | } |
6961465f MS |
437 | } |
438 | ||
439 | if (no_peer) | |
440 | { | |
ffe32673 | 441 | cupsdLogClient(con, CUPSD_LOG_ERROR, "PeerCred authentication not allowed for resource per AUTHKEY policy."); |
6961465f MS |
442 | return; |
443 | } | |
f14324a7 | 444 | #endif /* HAVE_AUTHORIZATION_H */ |
bc44d920 | 445 | |
446 | if ((pwd = getpwnam(authorization + 9)) == NULL) | |
447 | { | |
ffe32673 | 448 | cupsdLogClient(con, CUPSD_LOG_ERROR, "User \"%s\" does not exist.", authorization + 9); |
bc44d920 | 449 | return; |
450 | } | |
451 | ||
452 | peersize = sizeof(peercred); | |
453 | ||
f11a948a | 454 | # ifdef __APPLE__ |
996acce8 | 455 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
f11a948a | 456 | # else |
996acce8 | 457 | if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, &peersize)) |
f11a948a | 458 | # endif /* __APPLE__ */ |
bc44d920 | 459 | { |
ffe32673 | 460 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
bc44d920 | 461 | return; |
462 | } | |
463 | ||
464 | if (pwd->pw_uid != CUPSD_UCRED_UID(peercred)) | |
465 | { | |
ffe32673 | 466 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Invalid peer credentials for \"%s\" - got %d, expected %d.", authorization + 9, CUPSD_UCRED_UID(peercred), pwd->pw_uid); |
bc44d920 | 467 | # ifdef HAVE_SYS_UCRED_H |
ffe32673 MS |
468 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_version=%d", peercred.cr_version); |
469 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_uid=%d", peercred.cr_uid); | |
470 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_ngroups=%d", peercred.cr_ngroups); | |
471 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_groups[0]=%d", peercred.cr_groups[0]); | |
bc44d920 | 472 | # endif /* HAVE_SYS_UCRED_H */ |
473 | return; | |
474 | } | |
475 | ||
476 | strlcpy(username, authorization + 9, sizeof(username)); | |
355e94dc | 477 | |
eac3a0a0 MS |
478 | # ifdef HAVE_GSSAPI |
479 | con->gss_uid = CUPSD_UCRED_UID(peercred); | |
480 | # endif /* HAVE_GSSAPI */ | |
481 | ||
ffe32673 | 482 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as %s using PeerCred.", username); |
2fb76298 | 483 | |
5bd77a73 | 484 | con->type = CUPSD_AUTH_BASIC; |
bc44d920 | 485 | } |
486 | #endif /* SO_PEERCRED && AF_LOCAL */ | |
ef416fc2 | 487 | else if (!strncmp(authorization, "Local", 5) && |
5ec1fd3d | 488 | httpAddrLocalhost(httpGetAddress(con->http))) |
ef416fc2 | 489 | { |
490 | /* | |
491 | * Get Local certificate authentication data... | |
492 | */ | |
493 | ||
494 | authorization += 5; | |
80ca4592 | 495 | while (isspace(*authorization & 255)) |
ef416fc2 | 496 | authorization ++; |
497 | ||
0fa6c7fa | 498 | if ((localuser = cupsdFindCert(authorization)) == NULL) |
ef416fc2 | 499 | { |
ffe32673 | 500 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Local authentication certificate not found."); |
ef416fc2 | 501 | return; |
502 | } | |
2fb76298 | 503 | |
0fa6c7fa MS |
504 | strlcpy(username, localuser->username, sizeof(username)); |
505 | con->type = localuser->type; | |
506 | ||
ffe32673 | 507 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as %s using Local.", username); |
ef416fc2 | 508 | } |
2fb76298 | 509 | else if (!strncmp(authorization, "Basic", 5)) |
ef416fc2 | 510 | { |
511 | /* | |
512 | * Get the Basic authentication data... | |
513 | */ | |
514 | ||
515 | int userlen; /* Username:password length */ | |
516 | ||
517 | ||
518 | authorization += 5; | |
80ca4592 | 519 | while (isspace(*authorization & 255)) |
ef416fc2 | 520 | authorization ++; |
521 | ||
522 | userlen = sizeof(username); | |
523 | httpDecode64_2(username, &userlen, authorization); | |
524 | ||
525 | /* | |
526 | * Pull the username and password out... | |
527 | */ | |
528 | ||
529 | if ((ptr = strchr(username, ':')) == NULL) | |
530 | { | |
ffe32673 | 531 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Missing Basic password."); |
ef416fc2 | 532 | return; |
533 | } | |
534 | ||
535 | *ptr++ = '\0'; | |
536 | ||
537 | if (!username[0]) | |
538 | { | |
539 | /* | |
540 | * Username must not be empty... | |
541 | */ | |
542 | ||
ffe32673 | 543 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Empty Basic username."); |
ef416fc2 | 544 | return; |
545 | } | |
546 | ||
547 | if (!*ptr) | |
548 | { | |
549 | /* | |
550 | * Password must not be empty... | |
551 | */ | |
552 | ||
ffe32673 | 553 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Empty Basic password."); |
ef416fc2 | 554 | return; |
555 | } | |
556 | ||
557 | strlcpy(password, ptr, sizeof(password)); | |
558 | ||
559 | /* | |
560 | * Validate the username and password... | |
561 | */ | |
562 | ||
563 | switch (type) | |
564 | { | |
2fb76298 | 565 | default : |
5bd77a73 | 566 | case CUPSD_AUTH_BASIC : |
ef416fc2 | 567 | { |
568 | #if HAVE_LIBPAM | |
569 | /* | |
570 | * Only use PAM to do authentication. This supports MD5 | |
571 | * passwords, among other things... | |
572 | */ | |
573 | ||
574 | pam_handle_t *pamh; /* PAM authentication handle */ | |
575 | int pamerr; /* PAM error code */ | |
576 | struct pam_conv pamdata;/* PAM conversation data */ | |
577 | cupsd_authdata_t data; /* Authentication data */ | |
578 | ||
579 | ||
580 | strlcpy(data.username, username, sizeof(data.username)); | |
581 | strlcpy(data.password, password, sizeof(data.password)); | |
582 | ||
5a1d7a17 | 583 | # ifdef __sun |
e1d6a774 | 584 | pamdata.conv = (int (*)(int, struct pam_message **, |
585 | struct pam_response **, | |
586 | void *))pam_func; | |
587 | # else | |
ef416fc2 | 588 | pamdata.conv = pam_func; |
5a1d7a17 | 589 | # endif /* __sun */ |
ef416fc2 | 590 | pamdata.appdata_ptr = &data; |
591 | ||
ef416fc2 | 592 | pamerr = pam_start("cups", username, &pamdata, &pamh); |
593 | if (pamerr != PAM_SUCCESS) | |
594 | { | |
ffe32673 | 595 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_start() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 596 | return; |
597 | } | |
598 | ||
ee571f26 MS |
599 | # ifdef HAVE_PAM_SET_ITEM |
600 | # ifdef PAM_RHOST | |
996acce8 | 601 | pamerr = pam_set_item(pamh, PAM_RHOST, con->http->hostname); |
a4924f6c | 602 | if (pamerr != PAM_SUCCESS) |
ffe32673 | 603 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_set_item(PAM_RHOST) returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ee571f26 MS |
604 | # endif /* PAM_RHOST */ |
605 | ||
606 | # ifdef PAM_TTY | |
607 | pamerr = pam_set_item(pamh, PAM_TTY, "cups"); | |
608 | if (pamerr != PAM_SUCCESS) | |
ffe32673 | 609 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_set_item(PAM_TTY) returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ee571f26 MS |
610 | # endif /* PAM_TTY */ |
611 | # endif /* HAVE_PAM_SET_ITEM */ | |
612 | ||
ef416fc2 | 613 | pamerr = pam_authenticate(pamh, PAM_SILENT); |
614 | if (pamerr != PAM_SUCCESS) | |
615 | { | |
ffe32673 | 616 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_authenticate() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 617 | pam_end(pamh, 0); |
618 | return; | |
619 | } | |
620 | ||
94da7e34 MS |
621 | # ifdef HAVE_PAM_SETCRED |
622 | pamerr = pam_setcred(pamh, PAM_ESTABLISH_CRED | PAM_SILENT); | |
623 | if (pamerr != PAM_SUCCESS) | |
ffe32673 | 624 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_setcred() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
94da7e34 MS |
625 | # endif /* HAVE_PAM_SETCRED */ |
626 | ||
ef416fc2 | 627 | pamerr = pam_acct_mgmt(pamh, PAM_SILENT); |
628 | if (pamerr != PAM_SUCCESS) | |
629 | { | |
ffe32673 | 630 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_acct_mgmt() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 631 | pam_end(pamh, 0); |
632 | return; | |
633 | } | |
634 | ||
635 | pam_end(pamh, PAM_SUCCESS); | |
636 | ||
ef416fc2 | 637 | #else |
638 | /* | |
639 | * Use normal UNIX password file-based authentication... | |
640 | */ | |
641 | ||
642 | char *pass; /* Encrypted password */ | |
643 | struct passwd *pw; /* User password data */ | |
644 | # ifdef HAVE_SHADOW_H | |
645 | struct spwd *spw; /* Shadow password data */ | |
646 | # endif /* HAVE_SHADOW_H */ | |
647 | ||
648 | ||
649 | pw = getpwnam(username); /* Get the current password */ | |
650 | endpwent(); /* Close the password file */ | |
651 | ||
652 | if (!pw) | |
653 | { | |
654 | /* | |
655 | * No such user... | |
656 | */ | |
657 | ||
ffe32673 | 658 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unknown username \"%s\".", username); |
80ca4592 | 659 | return; |
ef416fc2 | 660 | } |
661 | ||
662 | # ifdef HAVE_SHADOW_H | |
663 | spw = getspnam(username); | |
664 | endspent(); | |
665 | ||
666 | if (!spw && !strcmp(pw->pw_passwd, "x")) | |
667 | { | |
668 | /* | |
669 | * Don't allow blank passwords! | |
670 | */ | |
671 | ||
ffe32673 | 672 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Username \"%s\" has no shadow password.", username); |
ef416fc2 | 673 | return; |
674 | } | |
675 | ||
676 | if (spw && !spw->sp_pwdp[0] && !pw->pw_passwd[0]) | |
677 | # else | |
678 | if (!pw->pw_passwd[0]) | |
679 | # endif /* HAVE_SHADOW_H */ | |
680 | { | |
681 | /* | |
682 | * Don't allow blank passwords! | |
683 | */ | |
684 | ||
ffe32673 | 685 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Username \"%s\" has no password.", username); |
ef416fc2 | 686 | return; |
687 | } | |
688 | ||
689 | /* | |
690 | * OK, the password isn't blank, so compare with what came from the | |
691 | * client... | |
692 | */ | |
693 | ||
570933a6 | 694 | pass = crypt(password, pw->pw_passwd); |
ef416fc2 | 695 | |
ef416fc2 | 696 | if (!pass || strcmp(pw->pw_passwd, pass)) |
697 | { | |
698 | # ifdef HAVE_SHADOW_H | |
699 | if (spw) | |
700 | { | |
570933a6 | 701 | pass = crypt(password, spw->sp_pwdp); |
ef416fc2 | 702 | |
ef416fc2 | 703 | if (pass == NULL || strcmp(spw->sp_pwdp, pass)) |
704 | { | |
ffe32673 | 705 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Authentication failed for user \"%s\".", username); |
ef416fc2 | 706 | return; |
707 | } | |
708 | } | |
709 | else | |
710 | # endif /* HAVE_SHADOW_H */ | |
711 | { | |
ffe32673 | 712 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Authentication failed for user \"%s\".", username); |
ef416fc2 | 713 | return; |
714 | } | |
715 | } | |
716 | #endif /* HAVE_LIBPAM */ | |
717 | } | |
355e94dc | 718 | |
ffe32673 | 719 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using Basic.", username); |
ef416fc2 | 720 | break; |
ef416fc2 | 721 | } |
2fb76298 MS |
722 | |
723 | con->type = type; | |
ef416fc2 | 724 | } |
f7deaa1a | 725 | #ifdef HAVE_GSSAPI |
c8fef167 | 726 | else if (!strncmp(authorization, "Negotiate", 9)) |
f7deaa1a | 727 | { |
728 | int len; /* Length of authorization string */ | |
f7deaa1a | 729 | gss_ctx_id_t context; /* Authorization context */ |
730 | OM_uint32 major_status, /* Major status code */ | |
731 | minor_status; /* Minor status code */ | |
732 | gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER, | |
733 | /* Input token from string */ | |
734 | output_token = GSS_C_EMPTY_BUFFER; | |
735 | /* Output token for username */ | |
736 | gss_name_t client_name; /* Client name */ | |
737 | ||
738 | ||
f42414bf | 739 | # ifdef __APPLE__ |
740 | /* | |
741 | * If the weak-linked GSSAPI/Kerberos library is not present, don't try | |
742 | * to use it... | |
743 | */ | |
744 | ||
d2ff4622 | 745 | if (&gss_init_sec_context == NULL) |
f42414bf | 746 | { |
ffe32673 | 747 | cupsdLogClient(con, CUPSD_LOG_WARN, "GSSAPI/Kerberos authentication failed because the Kerberos framework is not present."); |
f42414bf | 748 | return; |
749 | } | |
750 | # endif /* __APPLE__ */ | |
751 | ||
f7deaa1a | 752 | /* |
753 | * Find the start of the Kerberos input token... | |
754 | */ | |
755 | ||
756 | authorization += 9; | |
757 | while (isspace(*authorization & 255)) | |
758 | authorization ++; | |
759 | ||
760 | if (!*authorization) | |
761 | { | |
ffe32673 | 762 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "No authentication data specified."); |
f7deaa1a | 763 | return; |
764 | } | |
765 | ||
f7deaa1a | 766 | /* |
767 | * Decode the authorization string to get the input token... | |
768 | */ | |
769 | ||
7e86f2f6 MS |
770 | len = (int)strlen(authorization); |
771 | input_token.value = malloc((size_t)len); | |
f7deaa1a | 772 | input_token.value = httpDecode64_2(input_token.value, &len, |
c7017ecc | 773 | authorization); |
7e86f2f6 | 774 | input_token.length = (size_t)len; |
f7deaa1a | 775 | |
776 | /* | |
777 | * Accept the input token to get the authorization info... | |
778 | */ | |
779 | ||
780 | context = GSS_C_NO_CONTEXT; | |
781 | client_name = GSS_C_NO_NAME; | |
782 | major_status = gss_accept_sec_context(&minor_status, | |
783 | &context, | |
dcb445bc | 784 | ServerCreds, |
f7deaa1a | 785 | &input_token, |
786 | GSS_C_NO_CHANNEL_BINDINGS, | |
787 | &client_name, | |
788 | NULL, | |
07ed0e9a MS |
789 | &output_token, |
790 | NULL, | |
f7deaa1a | 791 | NULL, |
07ed0e9a MS |
792 | NULL); |
793 | ||
794 | if (output_token.length > 0) | |
795 | gss_release_buffer(&minor_status, &output_token); | |
f7deaa1a | 796 | |
797 | if (GSS_ERROR(major_status)) | |
798 | { | |
ffe32673 | 799 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Error accepting GSSAPI security context.", con->number); |
f7deaa1a | 800 | |
801 | if (context != GSS_C_NO_CONTEXT) | |
802 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
f7deaa1a | 803 | return; |
804 | } | |
805 | ||
97c9a8d7 MS |
806 | con->have_gss = 1; |
807 | ||
76cd9e37 MS |
808 | /* |
809 | * Get the username associated with the client's credentials... | |
f7deaa1a | 810 | */ |
811 | ||
355e94dc | 812 | if (major_status == GSS_S_CONTINUE_NEEDED) |
ffe32673 | 813 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Credentials not complete.", con->number); |
355e94dc | 814 | else if (major_status == GSS_S_COMPLETE) |
f7deaa1a | 815 | { |
c8fef167 | 816 | major_status = gss_display_name(&minor_status, client_name, |
f7deaa1a | 817 | &output_token, NULL); |
818 | ||
819 | if (GSS_ERROR(major_status)) | |
820 | { | |
ffe32673 | 821 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Error getting username.", con->number); |
f7deaa1a | 822 | gss_release_name(&minor_status, &client_name); |
823 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
f7deaa1a | 824 | return; |
825 | } | |
826 | ||
f7deaa1a | 827 | strlcpy(username, output_token.value, sizeof(username)); |
355e94dc | 828 | |
ffe32673 | 829 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using Negotiate.", username); |
f7deaa1a | 830 | |
e07d4801 | 831 | gss_release_name(&minor_status, &client_name); |
f7deaa1a | 832 | gss_release_buffer(&minor_status, &output_token); |
2fb76298 | 833 | |
5bd77a73 | 834 | con->type = CUPSD_AUTH_NEGOTIATE; |
f7deaa1a | 835 | } |
e07d4801 MS |
836 | |
837 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
07ed0e9a MS |
838 | |
839 | # if defined(SO_PEERCRED) && defined(AF_LOCAL) | |
840 | /* | |
841 | * Get the client's UID if we are printing locally - that allows a backend | |
842 | * to run as the correct user to get Kerberos credentials of its own. | |
843 | */ | |
844 | ||
5ec1fd3d | 845 | if (httpAddrFamily(con->http->hostaddr) == AF_LOCAL) |
07ed0e9a MS |
846 | { |
847 | cupsd_ucred_t peercred; /* Peer credentials */ | |
848 | socklen_t peersize; /* Size of peer credentials */ | |
849 | ||
850 | peersize = sizeof(peercred); | |
851 | ||
852 | # ifdef __APPLE__ | |
996acce8 | 853 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
07ed0e9a | 854 | # else |
996acce8 | 855 | if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, |
07ed0e9a MS |
856 | &peersize)) |
857 | # endif /* __APPLE__ */ | |
858 | { | |
ffe32673 | 859 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
07ed0e9a MS |
860 | } |
861 | else | |
862 | { | |
ffe32673 | 863 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Using credentials for UID %d.", CUPSD_UCRED_UID(peercred)); |
07ed0e9a MS |
864 | con->gss_uid = CUPSD_UCRED_UID(peercred); |
865 | } | |
866 | } | |
867 | # endif /* SO_PEERCRED && AF_LOCAL */ | |
f7deaa1a | 868 | } |
869 | #endif /* HAVE_GSSAPI */ | |
2fb76298 | 870 | else |
ef416fc2 | 871 | { |
355e94dc | 872 | char scheme[256]; /* Auth scheme... */ |
355e94dc MS |
873 | |
874 | ||
875 | if (sscanf(authorization, "%255s", scheme) != 1) | |
5a9febac | 876 | strlcpy(scheme, "UNKNOWN", sizeof(scheme)); |
355e94dc | 877 | |
ffe32673 | 878 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Bad authentication data \"%s ...\".", scheme); |
ef416fc2 | 879 | return; |
880 | } | |
881 | ||
882 | /* | |
883 | * If we get here, then we were able to validate the username and | |
884 | * password - copy the validated username and password to the client | |
885 | * data and return... | |
886 | */ | |
887 | ||
888 | strlcpy(con->username, username, sizeof(con->username)); | |
889 | strlcpy(con->password, password, sizeof(con->password)); | |
ef416fc2 | 890 | } |
891 | ||
892 | ||
080811b1 MS |
893 | /* |
894 | * 'cupsdCheckAccess()' - Check whether the given address is allowed to | |
895 | * access a location. | |
896 | */ | |
897 | ||
898 | int /* O - 1 if allowed, 0 otherwise */ | |
899 | cupsdCheckAccess( | |
900 | unsigned ip[4], /* I - Client address */ | |
5ec1fd3d | 901 | const char *name, /* I - Client hostname */ |
7e86f2f6 | 902 | size_t namelen, /* I - Length of hostname */ |
080811b1 MS |
903 | cupsd_location_t *loc) /* I - Location to check */ |
904 | { | |
905 | int allow; /* 1 if allowed, 0 otherwise */ | |
906 | ||
907 | ||
88f9aafc | 908 | if (!_cups_strcasecmp(name, "localhost")) |
080811b1 MS |
909 | { |
910 | /* | |
911 | * Access from localhost (127.0.0.1 or ::1) is always allowed... | |
912 | */ | |
913 | ||
914 | return (1); | |
915 | } | |
916 | else | |
917 | { | |
918 | /* | |
919 | * Do authorization checks on the domain/address... | |
920 | */ | |
921 | ||
922 | switch (loc->order_type) | |
923 | { | |
924 | default : | |
925 | allow = 0; /* anti-compiler-warning-code */ | |
926 | break; | |
927 | ||
5bd77a73 | 928 | case CUPSD_AUTH_ALLOW : /* Order Deny,Allow */ |
080811b1 MS |
929 | allow = 1; |
930 | ||
10d09e33 | 931 | if (cupsdCheckAuth(ip, name, namelen, loc->deny)) |
080811b1 MS |
932 | allow = 0; |
933 | ||
10d09e33 | 934 | if (cupsdCheckAuth(ip, name, namelen, loc->allow)) |
080811b1 MS |
935 | allow = 1; |
936 | break; | |
937 | ||
5bd77a73 | 938 | case CUPSD_AUTH_DENY : /* Order Allow,Deny */ |
080811b1 MS |
939 | allow = 0; |
940 | ||
10d09e33 | 941 | if (cupsdCheckAuth(ip, name, namelen, loc->allow)) |
080811b1 MS |
942 | allow = 1; |
943 | ||
10d09e33 | 944 | if (cupsdCheckAuth(ip, name, namelen, loc->deny)) |
080811b1 MS |
945 | allow = 0; |
946 | break; | |
947 | } | |
948 | } | |
949 | ||
950 | return (allow); | |
951 | } | |
952 | ||
953 | ||
ef416fc2 | 954 | /* |
955 | * 'cupsdCheckAuth()' - Check authorization masks. | |
956 | */ | |
957 | ||
958 | int /* O - 1 if mask matches, 0 otherwise */ | |
10d09e33 | 959 | cupsdCheckAuth(unsigned ip[4], /* I - Client address */ |
5ec1fd3d | 960 | const char *name, /* I - Client hostname */ |
7e86f2f6 | 961 | size_t name_len, /* I - Length of hostname */ |
10d09e33 | 962 | cups_array_t *masks) /* I - Masks */ |
ef416fc2 | 963 | { |
10d09e33 MS |
964 | int i; /* Looping var */ |
965 | cupsd_authmask_t *mask; /* Current mask */ | |
966 | cupsd_netif_t *iface; /* Network interface */ | |
967 | unsigned netip4; /* IPv4 network address */ | |
ef416fc2 | 968 | #ifdef AF_INET6 |
10d09e33 | 969 | unsigned netip6[4]; /* IPv6 network address */ |
ef416fc2 | 970 | #endif /* AF_INET6 */ |
971 | ||
e07d4801 | 972 | |
10d09e33 MS |
973 | for (mask = (cupsd_authmask_t *)cupsArrayFirst(masks); |
974 | mask; | |
975 | mask = (cupsd_authmask_t *)cupsArrayNext(masks)) | |
ef416fc2 | 976 | { |
10d09e33 | 977 | switch (mask->type) |
ef416fc2 | 978 | { |
5bd77a73 | 979 | case CUPSD_AUTH_INTERFACE : |
ef416fc2 | 980 | /* |
981 | * Check for a match with a network interface... | |
982 | */ | |
983 | ||
984 | netip4 = htonl(ip[3]); | |
985 | ||
986 | #ifdef AF_INET6 | |
987 | netip6[0] = htonl(ip[0]); | |
988 | netip6[1] = htonl(ip[1]); | |
989 | netip6[2] = htonl(ip[2]); | |
990 | netip6[3] = htonl(ip[3]); | |
991 | #endif /* AF_INET6 */ | |
992 | ||
84ec3a84 MS |
993 | cupsdNetIFUpdate(); |
994 | ||
10d09e33 | 995 | if (!strcmp(mask->mask.name.name, "*")) |
ef416fc2 | 996 | { |
e07d4801 MS |
997 | #ifdef __APPLE__ |
998 | /* | |
999 | * Allow Back-to-My-Mac addresses... | |
1000 | */ | |
1001 | ||
1002 | if ((ip[0] & 0xff000000) == 0xfd000000) | |
1003 | return (1); | |
1004 | #endif /* __APPLE__ */ | |
1005 | ||
ef416fc2 | 1006 | /* |
1007 | * Check against all local interfaces... | |
1008 | */ | |
1009 | ||
e00b005a | 1010 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
1011 | iface; | |
1012 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) | |
ef416fc2 | 1013 | { |
1014 | /* | |
1015 | * Only check local interfaces... | |
1016 | */ | |
1017 | ||
1018 | if (!iface->is_local) | |
1019 | continue; | |
1020 | ||
1021 | if (iface->address.addr.sa_family == AF_INET) | |
1022 | { | |
1023 | /* | |
1024 | * Check IPv4 address... | |
1025 | */ | |
1026 | ||
1027 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1028 | (iface->address.ipv4.sin_addr.s_addr & | |
1029 | iface->mask.ipv4.sin_addr.s_addr)) | |
1030 | return (1); | |
1031 | } | |
1032 | #ifdef AF_INET6 | |
1033 | else | |
1034 | { | |
1035 | /* | |
1036 | * Check IPv6 address... | |
1037 | */ | |
1038 | ||
1039 | for (i = 0; i < 4; i ++) | |
1040 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1041 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1042 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1043 | break; | |
1044 | ||
1045 | if (i == 4) | |
1046 | return (1); | |
1047 | } | |
1048 | #endif /* AF_INET6 */ | |
1049 | } | |
1050 | } | |
1051 | else | |
1052 | { | |
1053 | /* | |
1054 | * Check the named interface... | |
1055 | */ | |
1056 | ||
e00b005a | 1057 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
ed486911 | 1058 | iface; |
e00b005a | 1059 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) |
ef416fc2 | 1060 | { |
10d09e33 | 1061 | if (strcmp(mask->mask.name.name, iface->name)) |
ed486911 | 1062 | continue; |
1063 | ||
ef416fc2 | 1064 | if (iface->address.addr.sa_family == AF_INET) |
1065 | { | |
1066 | /* | |
1067 | * Check IPv4 address... | |
1068 | */ | |
1069 | ||
1070 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1071 | (iface->address.ipv4.sin_addr.s_addr & | |
1072 | iface->mask.ipv4.sin_addr.s_addr)) | |
1073 | return (1); | |
1074 | } | |
1075 | #ifdef AF_INET6 | |
1076 | else | |
1077 | { | |
1078 | /* | |
1079 | * Check IPv6 address... | |
1080 | */ | |
1081 | ||
1082 | for (i = 0; i < 4; i ++) | |
1083 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1084 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1085 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1086 | break; | |
1087 | ||
1088 | if (i == 4) | |
1089 | return (1); | |
1090 | } | |
1091 | #endif /* AF_INET6 */ | |
1092 | } | |
1093 | } | |
1094 | break; | |
1095 | ||
5bd77a73 | 1096 | case CUPSD_AUTH_NAME : |
ef416fc2 | 1097 | /* |
1098 | * Check for exact name match... | |
1099 | */ | |
1100 | ||
88f9aafc | 1101 | if (!_cups_strcasecmp(name, mask->mask.name.name)) |
ef416fc2 | 1102 | return (1); |
1103 | ||
1104 | /* | |
1105 | * Check for domain match... | |
1106 | */ | |
1107 | ||
10d09e33 MS |
1108 | if (name_len >= mask->mask.name.length && |
1109 | mask->mask.name.name[0] == '.' && | |
88f9aafc | 1110 | !_cups_strcasecmp(name + name_len - mask->mask.name.length, |
10d09e33 | 1111 | mask->mask.name.name)) |
ef416fc2 | 1112 | return (1); |
1113 | break; | |
1114 | ||
5bd77a73 | 1115 | case CUPSD_AUTH_IP : |
ef416fc2 | 1116 | /* |
1117 | * Check for IP/network address match... | |
1118 | */ | |
1119 | ||
1120 | for (i = 0; i < 4; i ++) | |
10d09e33 MS |
1121 | if ((ip[i] & mask->mask.ip.netmask[i]) != |
1122 | mask->mask.ip.address[i]) | |
ef416fc2 | 1123 | break; |
1124 | ||
1125 | if (i == 4) | |
1126 | return (1); | |
1127 | break; | |
1128 | } | |
ef416fc2 | 1129 | } |
1130 | ||
1131 | return (0); | |
1132 | } | |
1133 | ||
1134 | ||
1135 | /* | |
1136 | * 'cupsdCheckGroup()' - Check for a user's group membership. | |
1137 | */ | |
1138 | ||
1139 | int /* O - 1 if user is a member, 0 otherwise */ | |
1140 | cupsdCheckGroup( | |
1141 | const char *username, /* I - User name */ | |
1142 | struct passwd *user, /* I - System user info */ | |
1143 | const char *groupname) /* I - Group name */ | |
1144 | { | |
8922323b | 1145 | int i; /* Looping var */ |
afe94dff MS |
1146 | struct group *group; /* Group info */ |
1147 | gid_t groupid; /* ID of named group */ | |
bd7854cb | 1148 | #ifdef HAVE_MBR_UID_TO_UUID |
8922323b MS |
1149 | uuid_t useruuid, /* UUID for username */ |
1150 | groupuuid; /* UUID for groupname */ | |
1151 | int is_member; /* True if user is a member of group */ | |
bd7854cb | 1152 | #endif /* HAVE_MBR_UID_TO_UUID */ |
ef416fc2 | 1153 | |
1154 | ||
ffe32673 | 1155 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdCheckGroup(username=\"%s\", user=%p, groupname=\"%s\")", username, user, groupname); |
ef416fc2 | 1156 | |
1157 | /* | |
1158 | * Validate input... | |
1159 | */ | |
1160 | ||
1161 | if (!username || !groupname) | |
1162 | return (0); | |
1163 | ||
1164 | /* | |
1165 | * Check to see if the user is a member of the named group... | |
1166 | */ | |
1167 | ||
1168 | group = getgrnam(groupname); | |
1169 | endgrent(); | |
1170 | ||
1171 | if (group != NULL) | |
1172 | { | |
1173 | /* | |
1174 | * Group exists, check it... | |
1175 | */ | |
1176 | ||
afe94dff MS |
1177 | groupid = group->gr_gid; |
1178 | ||
6eb98aee MS |
1179 | #ifdef HAVE_GETGROUPLIST |
1180 | if (user) | |
1181 | { | |
f093225b | 1182 | int ngroups; /* Number of groups */ |
fdc3c81a MS |
1183 | # ifdef __APPLE__ |
1184 | int groups[2048]; /* Groups that user belongs to */ | |
1185 | # else | |
f093225b | 1186 | gid_t groups[2048]; /* Groups that user belongs to */ |
fdc3c81a | 1187 | # endif /* __APPLE__ */ |
6eb98aee MS |
1188 | |
1189 | ngroups = (int)(sizeof(groups) / sizeof(groups[0])); | |
fdc3c81a MS |
1190 | # ifdef __APPLE__ |
1191 | getgrouplist(username, (int)user->pw_gid, groups, &ngroups); | |
1192 | # else | |
f093225b | 1193 | getgrouplist(username, user->pw_gid, groups, &ngroups); |
fdc3c81a | 1194 | #endif /* __APPLE__ */ |
6eb98aee MS |
1195 | |
1196 | for (i = 0; i < ngroups; i ++) | |
afe94dff | 1197 | if ((int)groupid == (int)groups[i]) |
6eb98aee MS |
1198 | return (1); |
1199 | } | |
6eb98aee | 1200 | |
afe94dff | 1201 | #else |
ef416fc2 | 1202 | for (i = 0; group->gr_mem[i]; i ++) |
afe94dff | 1203 | { |
88f9aafc | 1204 | if (!_cups_strcasecmp(username, group->gr_mem[i])) |
ef416fc2 | 1205 | return (1); |
afe94dff MS |
1206 | } |
1207 | #endif /* HAVE_GETGROUPLIST */ | |
ef416fc2 | 1208 | } |
afe94dff MS |
1209 | else |
1210 | groupid = (gid_t)-1; | |
ef416fc2 | 1211 | |
1212 | /* | |
1213 | * Group doesn't exist or user not in group list, check the group ID | |
1214 | * against the user's group ID... | |
1215 | */ | |
1216 | ||
afe94dff | 1217 | if (user && groupid == user->pw_gid) |
ef416fc2 | 1218 | return (1); |
1219 | ||
bd7854cb | 1220 | #ifdef HAVE_MBR_UID_TO_UUID |
1221 | /* | |
d4874933 | 1222 | * Check group membership through macOS membership API... |
bd7854cb | 1223 | */ |
1224 | ||
dd1abb6b | 1225 | if (user && !mbr_uid_to_uuid(user->pw_uid, useruuid)) |
c9fc04c6 | 1226 | { |
afe94dff | 1227 | if (groupid != (gid_t)-1) |
8922323b MS |
1228 | { |
1229 | /* | |
1230 | * Map group name to UUID and check membership... | |
1231 | */ | |
c9fc04c6 | 1232 | |
afe94dff | 1233 | if (!mbr_gid_to_uuid(groupid, groupuuid)) |
8922323b MS |
1234 | if (!mbr_check_membership(useruuid, groupuuid, &is_member)) |
1235 | if (is_member) | |
1236 | return (1); | |
1237 | } | |
1238 | else if (groupname[0] == '#') | |
1239 | { | |
1240 | /* | |
1241 | * Use UUID directly and check for equality (user UUID) and | |
1242 | * membership (group UUID)... | |
1243 | */ | |
1244 | ||
1245 | if (!uuid_parse((char *)groupname + 1, groupuuid)) | |
1246 | { | |
1247 | if (!uuid_compare(useruuid, groupuuid)) | |
c9fc04c6 | 1248 | return (1); |
8922323b MS |
1249 | else if (!mbr_check_membership(useruuid, groupuuid, &is_member)) |
1250 | if (is_member) | |
1251 | return (1); | |
1252 | } | |
1253 | ||
1254 | return (0); | |
1255 | } | |
1256 | } | |
1257 | else if (groupname[0] == '#') | |
1258 | return (0); | |
bd7854cb | 1259 | #endif /* HAVE_MBR_UID_TO_UUID */ |
1260 | ||
ef416fc2 | 1261 | /* |
1262 | * If we get this far, then the user isn't part of the named group... | |
1263 | */ | |
1264 | ||
1265 | return (0); | |
1266 | } | |
1267 | ||
1268 | ||
1269 | /* | |
1270 | * 'cupsdCopyLocation()' - Make a copy of a location... | |
1271 | */ | |
1272 | ||
1273 | cupsd_location_t * /* O - New location */ | |
1274 | cupsdCopyLocation( | |
10d09e33 | 1275 | cupsd_location_t *loc) /* I - Original location */ |
ef416fc2 | 1276 | { |
ef416fc2 | 1277 | cupsd_location_t *temp; /* New location */ |
ef416fc2 | 1278 | |
1279 | ||
ef416fc2 | 1280 | /* |
10d09e33 | 1281 | * Make a copy of the original location... |
ef416fc2 | 1282 | */ |
1283 | ||
10d09e33 | 1284 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) |
ef416fc2 | 1285 | return (NULL); |
1286 | ||
ef416fc2 | 1287 | /* |
1288 | * Copy the information from the original location to the new one. | |
1289 | */ | |
1290 | ||
10d09e33 MS |
1291 | if (!loc) |
1292 | return (temp); | |
ef416fc2 | 1293 | |
10d09e33 MS |
1294 | if (loc->location) |
1295 | temp->location = _cupsStrAlloc(loc->location); | |
ef416fc2 | 1296 | |
d2ff4622 | 1297 | temp->length = loc->length; |
10d09e33 MS |
1298 | temp->limit = loc->limit; |
1299 | temp->order_type = loc->order_type; | |
1300 | temp->type = loc->type; | |
1301 | temp->level = loc->level; | |
1302 | temp->satisfy = loc->satisfy; | |
1303 | temp->encryption = loc->encryption; | |
1304 | ||
1305 | if (loc->names) | |
1306 | { | |
1307 | if ((temp->names = cupsArrayDup(loc->names)) == NULL) | |
ef416fc2 | 1308 | { |
1309 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1310 | "Unable to allocate memory for %d names: %s", |
1311 | cupsArrayCount(loc->names), strerror(errno)); | |
bd7854cb | 1312 | |
10d09e33 | 1313 | cupsdFreeLocation(temp); |
ef416fc2 | 1314 | return (NULL); |
1315 | } | |
ef416fc2 | 1316 | } |
1317 | ||
10d09e33 | 1318 | if (loc->allow) |
ef416fc2 | 1319 | { |
1320 | /* | |
1321 | * Copy allow rules... | |
1322 | */ | |
1323 | ||
10d09e33 | 1324 | if ((temp->allow = cupsArrayDup(loc->allow)) == NULL) |
ef416fc2 | 1325 | { |
1326 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1327 | "Unable to allocate memory for %d allow rules: %s", |
1328 | cupsArrayCount(loc->allow), strerror(errno)); | |
1329 | cupsdFreeLocation(temp); | |
ef416fc2 | 1330 | return (NULL); |
1331 | } | |
ef416fc2 | 1332 | } |
1333 | ||
10d09e33 | 1334 | if (loc->deny) |
ef416fc2 | 1335 | { |
1336 | /* | |
1337 | * Copy deny rules... | |
1338 | */ | |
1339 | ||
10d09e33 | 1340 | if ((temp->deny = cupsArrayDup(loc->deny)) == NULL) |
ef416fc2 | 1341 | { |
1342 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1343 | "Unable to allocate memory for %d deny rules: %s", |
1344 | cupsArrayCount(loc->deny), strerror(errno)); | |
1345 | cupsdFreeLocation(temp); | |
ef416fc2 | 1346 | return (NULL); |
1347 | } | |
ef416fc2 | 1348 | } |
1349 | ||
1350 | return (temp); | |
1351 | } | |
1352 | ||
1353 | ||
1354 | /* | |
1355 | * 'cupsdDeleteAllLocations()' - Free all memory used for location authorization. | |
1356 | */ | |
1357 | ||
1358 | void | |
1359 | cupsdDeleteAllLocations(void) | |
1360 | { | |
ef416fc2 | 1361 | /* |
10d09e33 | 1362 | * Free the location array, which will free all of the locations... |
ef416fc2 | 1363 | */ |
1364 | ||
bd7854cb | 1365 | cupsArrayDelete(Locations); |
1366 | Locations = NULL; | |
ef416fc2 | 1367 | } |
1368 | ||
1369 | ||
ef416fc2 | 1370 | /* |
1371 | * 'cupsdFindBest()' - Find the location entry that best matches the resource. | |
1372 | */ | |
1373 | ||
1374 | cupsd_location_t * /* O - Location that matches */ | |
1375 | cupsdFindBest(const char *path, /* I - Resource path */ | |
1376 | http_state_t state) /* I - HTTP state/request */ | |
1377 | { | |
ef416fc2 | 1378 | char uri[HTTP_MAX_URI], |
1379 | /* URI in request... */ | |
1380 | *uriptr; /* Pointer into URI */ | |
1381 | cupsd_location_t *loc, /* Current location */ | |
1382 | *best; /* Best match for location so far */ | |
7e86f2f6 | 1383 | size_t bestlen; /* Length of best match */ |
ef416fc2 | 1384 | int limit; /* Limit field */ |
5bd77a73 | 1385 | static const int limits[] = /* Map http_status_t to CUPSD_AUTH_LIMIT_xyz */ |
ef416fc2 | 1386 | { |
5bd77a73 MS |
1387 | CUPSD_AUTH_LIMIT_ALL, |
1388 | CUPSD_AUTH_LIMIT_OPTIONS, | |
1389 | CUPSD_AUTH_LIMIT_GET, | |
1390 | CUPSD_AUTH_LIMIT_GET, | |
1391 | CUPSD_AUTH_LIMIT_HEAD, | |
1392 | CUPSD_AUTH_LIMIT_POST, | |
1393 | CUPSD_AUTH_LIMIT_POST, | |
1394 | CUPSD_AUTH_LIMIT_POST, | |
1395 | CUPSD_AUTH_LIMIT_PUT, | |
1396 | CUPSD_AUTH_LIMIT_PUT, | |
1397 | CUPSD_AUTH_LIMIT_DELETE, | |
1398 | CUPSD_AUTH_LIMIT_TRACE, | |
1399 | CUPSD_AUTH_LIMIT_ALL, | |
d2ff4622 MS |
1400 | CUPSD_AUTH_LIMIT_ALL, |
1401 | CUPSD_AUTH_LIMIT_ALL, | |
5bd77a73 | 1402 | CUPSD_AUTH_LIMIT_ALL |
ef416fc2 | 1403 | }; |
1404 | ||
1405 | ||
1406 | /* | |
1407 | * First copy the connection URI to a local string so we have drop | |
1408 | * any .ppd extension from the pathname in /printers or /classes | |
1409 | * URIs... | |
1410 | */ | |
1411 | ||
1412 | strlcpy(uri, path, sizeof(uri)); | |
1413 | ||
c26ceab0 MS |
1414 | if ((uriptr = strchr(uri, '?')) != NULL) |
1415 | *uriptr = '\0'; /* Drop trailing query string */ | |
1416 | ||
1417 | if ((uriptr = uri + strlen(uri) - 1) > uri && *uriptr == '/') | |
1418 | *uriptr = '\0'; /* Remove trailing '/' */ | |
1419 | ||
ef416fc2 | 1420 | if (!strncmp(uri, "/printers/", 10) || |
1421 | !strncmp(uri, "/classes/", 9)) | |
1422 | { | |
1423 | /* | |
1424 | * Check if the URI has .ppd on the end... | |
1425 | */ | |
1426 | ||
1427 | uriptr = uri + strlen(uri) - 4; /* len > 4 if we get here... */ | |
1428 | ||
1429 | if (!strcmp(uriptr, ".ppd")) | |
1430 | *uriptr = '\0'; | |
1431 | } | |
1432 | ||
ef416fc2 | 1433 | /* |
1434 | * Loop through the list of locations to find a match... | |
1435 | */ | |
1436 | ||
1437 | limit = limits[state]; | |
1438 | best = NULL; | |
1439 | bestlen = 0; | |
1440 | ||
ffe32673 | 1441 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: uri=\"%s\", limit=%x...", uri, limit); |
d2ff4622 MS |
1442 | |
1443 | ||
bd7854cb | 1444 | for (loc = (cupsd_location_t *)cupsArrayFirst(Locations); |
1445 | loc; | |
1446 | loc = (cupsd_location_t *)cupsArrayNext(Locations)) | |
ef416fc2 | 1447 | { |
d2ff4622 | 1448 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: Location %s(%d) Limit %x", loc->location ? loc->location : "(null)", (int)loc->length, loc->limit); |
ef416fc2 | 1449 | |
1450 | if (!strncmp(uri, "/printers/", 10) || !strncmp(uri, "/classes/", 9)) | |
1451 | { | |
1452 | /* | |
1453 | * Use case-insensitive comparison for queue names... | |
1454 | */ | |
1455 | ||
e1d6a774 | 1456 | if (loc->length > bestlen && loc->location && |
88f9aafc | 1457 | !_cups_strncasecmp(uri, loc->location, loc->length) && |
ef416fc2 | 1458 | loc->location[0] == '/' && |
1459 | (limit & loc->limit) != 0) | |
1460 | { | |
1461 | best = loc; | |
1462 | bestlen = loc->length; | |
1463 | } | |
1464 | } | |
1465 | else | |
1466 | { | |
1467 | /* | |
1468 | * Use case-sensitive comparison for other URIs... | |
1469 | */ | |
1470 | ||
e1d6a774 | 1471 | if (loc->length > bestlen && loc->location && |
ef416fc2 | 1472 | !strncmp(uri, loc->location, loc->length) && |
1473 | loc->location[0] == '/' && | |
1474 | (limit & loc->limit) != 0) | |
1475 | { | |
1476 | best = loc; | |
1477 | bestlen = loc->length; | |
1478 | } | |
1479 | } | |
1480 | } | |
1481 | ||
1482 | /* | |
1483 | * Return the match, if any... | |
1484 | */ | |
1485 | ||
ffe32673 | 1486 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: best=%s", best ? best->location : "NONE"); |
ef416fc2 | 1487 | |
1488 | return (best); | |
1489 | } | |
1490 | ||
1491 | ||
1492 | /* | |
1493 | * 'cupsdFindLocation()' - Find the named location. | |
1494 | */ | |
1495 | ||
1496 | cupsd_location_t * /* O - Location that matches */ | |
1497 | cupsdFindLocation(const char *location) /* I - Connection */ | |
1498 | { | |
bd7854cb | 1499 | cupsd_location_t key; /* Search key */ |
ef416fc2 | 1500 | |
1501 | ||
bd7854cb | 1502 | key.location = (char *)location; |
ef416fc2 | 1503 | |
bd7854cb | 1504 | return ((cupsd_location_t *)cupsArrayFind(Locations, &key)); |
ef416fc2 | 1505 | } |
1506 | ||
1507 | ||
10d09e33 MS |
1508 | /* |
1509 | * 'cupsdFreeLocation()' - Free all memory used by a location. | |
1510 | */ | |
1511 | ||
1512 | void | |
1513 | cupsdFreeLocation(cupsd_location_t *loc)/* I - Location to free */ | |
1514 | { | |
1515 | cupsArrayDelete(loc->names); | |
1516 | cupsArrayDelete(loc->allow); | |
1517 | cupsArrayDelete(loc->deny); | |
1518 | ||
1519 | _cupsStrFree(loc->location); | |
1520 | free(loc); | |
1521 | } | |
1522 | ||
1523 | ||
ef416fc2 | 1524 | /* |
1525 | * 'cupsdIsAuthorized()' - Check to see if the user is authorized... | |
1526 | */ | |
1527 | ||
1528 | http_status_t /* O - HTTP_OK if authorized or error code */ | |
1529 | cupsdIsAuthorized(cupsd_client_t *con, /* I - Connection */ | |
1530 | const char *owner)/* I - Owner of object */ | |
1531 | { | |
10d09e33 | 1532 | int i, /* Looping vars */ |
2fb76298 MS |
1533 | auth, /* Authorization status */ |
1534 | type; /* Type of authentication */ | |
5ec1fd3d MS |
1535 | http_addr_t *hostaddr = httpGetAddress(con->http); |
1536 | /* Client address */ | |
1537 | const char *hostname = httpGetHostname(con->http, NULL, 0); | |
1538 | /* Client hostname */ | |
ef416fc2 | 1539 | unsigned address[4]; /* Authorization address */ |
1540 | cupsd_location_t *best; /* Best match for location so far */ | |
7e86f2f6 | 1541 | size_t hostlen; /* Length of hostname */ |
10d09e33 MS |
1542 | char *name, /* Current username */ |
1543 | username[256], /* Username to authorize */ | |
db1f069b MS |
1544 | ownername[256], /* Owner name to authorize */ |
1545 | *ptr; /* Pointer into username */ | |
ef416fc2 | 1546 | struct passwd *pw; /* User password data */ |
1547 | static const char * const levels[] = /* Auth levels */ | |
1548 | { | |
1549 | "ANON", | |
1550 | "USER", | |
1551 | "GROUP" | |
1552 | }; | |
1553 | static const char * const types[] = /* Auth types */ | |
1554 | { | |
2fb76298 MS |
1555 | "None", |
1556 | "Basic", | |
2fb76298 | 1557 | "Negotiate" |
ef416fc2 | 1558 | }; |
1559 | ||
1560 | ||
ffe32673 | 1561 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: con->uri=\"%s\", con->best=%p(%s)", con->uri, con->best, con->best ? con->best->location ? con->best->location : "(null)" : ""); |
fa73b229 | 1562 | if (owner) |
ffe32673 | 1563 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: owner=\"%s\"", owner); |
ef416fc2 | 1564 | |
1565 | /* | |
1566 | * If there is no "best" authentication rule for this request, then | |
1567 | * access is allowed from the local system and denied from other | |
1568 | * addresses... | |
1569 | */ | |
1570 | ||
1571 | if (!con->best) | |
1572 | { | |
5ec1fd3d MS |
1573 | if (httpAddrLocalhost(httpGetAddress(con->http)) || |
1574 | !strcmp(hostname, ServerName) || | |
1575 | cupsArrayFind(ServerAlias, (void *)hostname)) | |
ef416fc2 | 1576 | return (HTTP_OK); |
1577 | else | |
1578 | return (HTTP_FORBIDDEN); | |
1579 | } | |
1580 | ||
1581 | best = con->best; | |
1582 | ||
5bd77a73 | 1583 | if ((type = best->type) == CUPSD_AUTH_DEFAULT) |
dcb445bc | 1584 | type = cupsdDefaultAuthType(); |
2fb76298 | 1585 | |
ffe32673 | 1586 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: level=CUPSD_AUTH_%s, type=%s, satisfy=CUPSD_AUTH_SATISFY_%s, num_names=%d", levels[best->level], types[type], best->satisfy ? "ANY" : "ALL", cupsArrayCount(best->names)); |
ef416fc2 | 1587 | |
5bd77a73 | 1588 | if (best->limit == CUPSD_AUTH_LIMIT_IPP) |
ffe32673 | 1589 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: op=%x(%s)", best->op, ippOpString(best->op)); |
ef416fc2 | 1590 | |
1591 | /* | |
1592 | * Check host/ip-based accesses... | |
1593 | */ | |
1594 | ||
1595 | #ifdef AF_INET6 | |
5ec1fd3d | 1596 | if (httpAddrFamily(hostaddr) == AF_INET6) |
ef416fc2 | 1597 | { |
1598 | /* | |
1599 | * Copy IPv6 address... | |
1600 | */ | |
1601 | ||
5ec1fd3d MS |
1602 | address[0] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[0]); |
1603 | address[1] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[1]); | |
1604 | address[2] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[2]); | |
1605 | address[3] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[3]); | |
ef416fc2 | 1606 | } |
1607 | else | |
1608 | #endif /* AF_INET6 */ | |
996acce8 | 1609 | if (con->http->hostaddr->addr.sa_family == AF_INET) |
ef416fc2 | 1610 | { |
1611 | /* | |
1612 | * Copy IPv4 address... | |
1613 | */ | |
1614 | ||
1615 | address[0] = 0; | |
1616 | address[1] = 0; | |
1617 | address[2] = 0; | |
5ec1fd3d | 1618 | address[3] = ntohl(hostaddr->ipv4.sin_addr.s_addr); |
ef416fc2 | 1619 | } |
1620 | else | |
1621 | memset(address, 0, sizeof(address)); | |
1622 | ||
5ec1fd3d | 1623 | hostlen = strlen(hostname); |
ef416fc2 | 1624 | |
5ec1fd3d | 1625 | auth = cupsdCheckAccess(address, hostname, hostlen, best) |
5bd77a73 | 1626 | ? CUPSD_AUTH_ALLOW : CUPSD_AUTH_DENY; |
ef416fc2 | 1627 | |
ffe32673 | 1628 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: auth=CUPSD_AUTH_%s...", auth ? "DENY" : "ALLOW"); |
ef416fc2 | 1629 | |
5bd77a73 | 1630 | if (auth == CUPSD_AUTH_DENY && best->satisfy == CUPSD_AUTH_SATISFY_ALL) |
ef416fc2 | 1631 | return (HTTP_FORBIDDEN); |
1632 | ||
1633 | #ifdef HAVE_SSL | |
1634 | /* | |
1635 | * See if encryption is required... | |
1636 | */ | |
1637 | ||
996acce8 | 1638 | if ((best->encryption >= HTTP_ENCRYPT_REQUIRED && !con->http->tls && |
5ec1fd3d MS |
1639 | _cups_strcasecmp(hostname, "localhost") && |
1640 | !httpAddrLocalhost(hostaddr) && | |
5bd77a73 | 1641 | best->satisfy == CUPSD_AUTH_SATISFY_ALL) && |
c8fef167 | 1642 | !(type == CUPSD_AUTH_NEGOTIATE || |
dcb445bc MS |
1643 | (type == CUPSD_AUTH_NONE && |
1644 | cupsdDefaultAuthType() == CUPSD_AUTH_NEGOTIATE))) | |
ef416fc2 | 1645 | { |
355e94dc | 1646 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
ef416fc2 | 1647 | "cupsdIsAuthorized: Need upgrade to TLS..."); |
1648 | return (HTTP_UPGRADE_REQUIRED); | |
1649 | } | |
1650 | #endif /* HAVE_SSL */ | |
1651 | ||
1652 | /* | |
1653 | * Now see what access level is required... | |
1654 | */ | |
1655 | ||
5bd77a73 | 1656 | if (best->level == CUPSD_AUTH_ANON || /* Anonymous access - allow it */ |
10d09e33 | 1657 | (type == CUPSD_AUTH_NONE && cupsArrayCount(best->names) == 0)) |
ef416fc2 | 1658 | return (HTTP_OK); |
1659 | ||
5bd77a73 MS |
1660 | if (!con->username[0] && type == CUPSD_AUTH_NONE && |
1661 | best->limit == CUPSD_AUTH_LIMIT_IPP) | |
ef416fc2 | 1662 | { |
1663 | /* | |
1664 | * Check for unauthenticated username... | |
1665 | */ | |
1666 | ||
1667 | ipp_attribute_t *attr; /* requesting-user-name attribute */ | |
1668 | ||
1669 | ||
1670 | attr = ippFindAttribute(con->request, "requesting-user-name", IPP_TAG_NAME); | |
1671 | if (attr) | |
1672 | { | |
355e94dc | 1673 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
ef416fc2 | 1674 | "cupsdIsAuthorized: requesting-user-name=\"%s\"", |
1675 | attr->values[0].string.text); | |
db1f069b | 1676 | strlcpy(username, attr->values[0].string.text, sizeof(username)); |
ef416fc2 | 1677 | } |
5bd77a73 | 1678 | else if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY) |
ef416fc2 | 1679 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1680 | else | |
1681 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1682 | } | |
fa73b229 | 1683 | else |
1684 | { | |
355e94dc | 1685 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdIsAuthorized: username=\"%s\"", |
fa73b229 | 1686 | con->username); |
1687 | ||
f7deaa1a | 1688 | #ifdef HAVE_AUTHORIZATION_H |
1689 | if (!con->username[0] && !con->authref) | |
1690 | #else | |
fa73b229 | 1691 | if (!con->username[0]) |
f7deaa1a | 1692 | #endif /* HAVE_AUTHORIZATION_H */ |
fa73b229 | 1693 | { |
5bd77a73 | 1694 | if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY) |
fa73b229 | 1695 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1696 | else | |
1697 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1698 | } | |
1699 | ||
eac3a0a0 | 1700 | |
5bd77a73 | 1701 | if (con->type != type && type != CUPSD_AUTH_NONE && |
eac3a0a0 MS |
1702 | #ifdef HAVE_GSSAPI |
1703 | (type != CUPSD_AUTH_NEGOTIATE || con->gss_uid <= 0) && | |
1704 | #endif /* HAVE_GSSAPI */ | |
e0660879 | 1705 | con->type != CUPSD_AUTH_BASIC) |
2fb76298 | 1706 | { |
e0660879 | 1707 | cupsdLogMessage(CUPSD_LOG_ERROR, "Authorized using %s, expected %s.", |
2fb76298 MS |
1708 | types[con->type], types[type]); |
1709 | ||
1710 | return (HTTP_UNAUTHORIZED); | |
1711 | } | |
1712 | ||
db1f069b | 1713 | strlcpy(username, con->username, sizeof(username)); |
fa73b229 | 1714 | } |
ef416fc2 | 1715 | |
1716 | /* | |
fa73b229 | 1717 | * OK, got a username. See if we need normal user access, or group |
ef416fc2 | 1718 | * access... (root always matches) |
1719 | */ | |
1720 | ||
fa73b229 | 1721 | if (!strcmp(username, "root")) |
ef416fc2 | 1722 | return (HTTP_OK); |
1723 | ||
db1f069b MS |
1724 | /* |
1725 | * Strip any @domain or @KDC from the username and owner... | |
1726 | */ | |
1727 | ||
1728 | if ((ptr = strchr(username, '@')) != NULL) | |
1729 | *ptr = '\0'; | |
1730 | ||
1731 | if (owner) | |
1732 | { | |
1733 | strlcpy(ownername, owner, sizeof(ownername)); | |
1734 | ||
1735 | if ((ptr = strchr(ownername, '@')) != NULL) | |
1736 | *ptr = '\0'; | |
1737 | } | |
1738 | else | |
1739 | ownername[0] = '\0'; | |
1740 | ||
ef416fc2 | 1741 | /* |
1742 | * Get the user info... | |
1743 | */ | |
1744 | ||
f7deaa1a | 1745 | if (username[0]) |
1746 | { | |
1747 | pw = getpwnam(username); | |
1748 | endpwent(); | |
1749 | } | |
1750 | else | |
1751 | pw = NULL; | |
ef416fc2 | 1752 | |
5bd77a73 | 1753 | if (best->level == CUPSD_AUTH_USER) |
ef416fc2 | 1754 | { |
1755 | /* | |
1756 | * If there are no names associated with this location, then | |
1757 | * any valid user is OK... | |
1758 | */ | |
1759 | ||
10d09e33 | 1760 | if (cupsArrayCount(best->names) == 0) |
ef416fc2 | 1761 | return (HTTP_OK); |
1762 | ||
1763 | /* | |
1764 | * Otherwise check the user list and return OK if this user is | |
1765 | * allowed... | |
1766 | */ | |
1767 | ||
ffe32673 | 1768 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking user membership..."); |
ef416fc2 | 1769 | |
f7deaa1a | 1770 | #ifdef HAVE_AUTHORIZATION_H |
1771 | /* | |
1772 | * If an authorization reference was supplied it must match a right name... | |
1773 | */ | |
1774 | ||
1775 | if (con->authref) | |
1776 | { | |
10d09e33 MS |
1777 | for (name = (char *)cupsArrayFirst(best->names); |
1778 | name; | |
1779 | name = (char *)cupsArrayNext(best->names)) | |
f7deaa1a | 1780 | { |
88f9aafc | 1781 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) && check_authref(con, name + 9)) |
f7deaa1a | 1782 | return (HTTP_OK); |
88f9aafc | 1783 | else if (!_cups_strcasecmp(name, "@SYSTEM") && SystemGroupAuthKey && |
f7deaa1a | 1784 | check_authref(con, SystemGroupAuthKey)) |
1785 | return (HTTP_OK); | |
1786 | } | |
1787 | ||
ee571f26 | 1788 | return (HTTP_FORBIDDEN); |
f7deaa1a | 1789 | } |
1790 | #endif /* HAVE_AUTHORIZATION_H */ | |
1791 | ||
10d09e33 MS |
1792 | for (name = (char *)cupsArrayFirst(best->names); |
1793 | name; | |
1794 | name = (char *)cupsArrayNext(best->names)) | |
ef416fc2 | 1795 | { |
88f9aafc MS |
1796 | if (!_cups_strcasecmp(name, "@OWNER") && owner && |
1797 | !_cups_strcasecmp(username, ownername)) | |
ef416fc2 | 1798 | return (HTTP_OK); |
88f9aafc | 1799 | else if (!_cups_strcasecmp(name, "@SYSTEM")) |
ef416fc2 | 1800 | { |
10d09e33 MS |
1801 | for (i = 0; i < NumSystemGroups; i ++) |
1802 | if (cupsdCheckGroup(username, pw, SystemGroups[i])) | |
ef416fc2 | 1803 | return (HTTP_OK); |
1804 | } | |
10d09e33 | 1805 | else if (name[0] == '@') |
ef416fc2 | 1806 | { |
10d09e33 | 1807 | if (cupsdCheckGroup(username, pw, name + 1)) |
ef416fc2 | 1808 | return (HTTP_OK); |
1809 | } | |
88f9aafc | 1810 | else if (!_cups_strcasecmp(username, name)) |
ef416fc2 | 1811 | return (HTTP_OK); |
1812 | } | |
1813 | ||
85dda01c | 1814 | return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED); |
ef416fc2 | 1815 | } |
1816 | ||
1817 | /* | |
1818 | * Check to see if this user is in any of the named groups... | |
1819 | */ | |
1820 | ||
ffe32673 | 1821 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking group membership..."); |
ef416fc2 | 1822 | |
1823 | /* | |
1824 | * Check to see if this user is in any of the named groups... | |
1825 | */ | |
1826 | ||
10d09e33 MS |
1827 | for (name = (char *)cupsArrayFirst(best->names); |
1828 | name; | |
1829 | name = (char *)cupsArrayNext(best->names)) | |
ef416fc2 | 1830 | { |
ffe32673 | 1831 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking group \"%s\" membership...", name); |
ef416fc2 | 1832 | |
88f9aafc | 1833 | if (!_cups_strcasecmp(name, "@SYSTEM")) |
ef416fc2 | 1834 | { |
10d09e33 MS |
1835 | for (i = 0; i < NumSystemGroups; i ++) |
1836 | if (cupsdCheckGroup(username, pw, SystemGroups[i])) | |
ef416fc2 | 1837 | return (HTTP_OK); |
1838 | } | |
10d09e33 | 1839 | else if (cupsdCheckGroup(username, pw, name)) |
ef416fc2 | 1840 | return (HTTP_OK); |
1841 | } | |
1842 | ||
1843 | /* | |
1844 | * The user isn't part of the specified group, so deny access... | |
1845 | */ | |
1846 | ||
ffe32673 | 1847 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdIsAuthorized: User not in group(s)."); |
ef416fc2 | 1848 | |
85dda01c | 1849 | return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED); |
ef416fc2 | 1850 | } |
1851 | ||
1852 | ||
1853 | /* | |
10d09e33 MS |
1854 | * 'cupsdNewLocation()' - Create a new location for authorization. |
1855 | * | |
1856 | * Note: Still need to call cupsdAddLocation() to add it to the list of global | |
1857 | * locations. | |
ef416fc2 | 1858 | */ |
1859 | ||
10d09e33 MS |
1860 | cupsd_location_t * /* O - Pointer to new location record */ |
1861 | cupsdNewLocation(const char *location) /* I - Location path */ | |
ef416fc2 | 1862 | { |
10d09e33 | 1863 | cupsd_location_t *temp; /* New location */ |
ef416fc2 | 1864 | |
1865 | ||
1866 | /* | |
10d09e33 | 1867 | * Try to allocate memory for the new location. |
ef416fc2 | 1868 | */ |
1869 | ||
10d09e33 | 1870 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) |
ef416fc2 | 1871 | return (NULL); |
1872 | ||
1873 | /* | |
10d09e33 | 1874 | * Initialize the record and copy the name over... |
ef416fc2 | 1875 | */ |
1876 | ||
10d09e33 MS |
1877 | if ((temp->location = _cupsStrAlloc(location)) == NULL) |
1878 | { | |
1879 | free(temp); | |
ef416fc2 | 1880 | return (NULL); |
10d09e33 | 1881 | } |
ef416fc2 | 1882 | |
10d09e33 | 1883 | temp->length = strlen(temp->location); |
ef416fc2 | 1884 | |
1885 | /* | |
10d09e33 | 1886 | * Return the new record... |
ef416fc2 | 1887 | */ |
1888 | ||
ef416fc2 | 1889 | return (temp); |
1890 | } | |
1891 | ||
1892 | ||
f7deaa1a | 1893 | #ifdef HAVE_AUTHORIZATION_H |
1894 | /* | |
1895 | * 'check_authref()' - Check if an authorization services reference has the | |
1896 | * supplied right. | |
1897 | */ | |
1898 | ||
1899 | static int /* O - 1 if right is valid, 0 otherwise */ | |
1900 | check_authref(cupsd_client_t *con, /* I - Connection */ | |
1901 | const char *right) /* I - Right name */ | |
1902 | { | |
1903 | OSStatus status; /* OS Status */ | |
1904 | AuthorizationItem authright; /* Authorization right */ | |
1905 | AuthorizationRights authrights; /* Authorization rights */ | |
1906 | AuthorizationFlags authflags; /* Authorization flags */ | |
1907 | ||
1908 | ||
1909 | /* | |
1910 | * Check to see if the user is allowed to perform the task... | |
1911 | */ | |
1912 | ||
1913 | if (!con->authref) | |
1914 | return (0); | |
1915 | ||
1916 | authright.name = right; | |
1917 | authright.valueLength = 0; | |
1918 | authright.value = NULL; | |
1919 | authright.flags = 0; | |
1920 | ||
1921 | authrights.count = 1; | |
1922 | authrights.items = &authright; | |
1923 | ||
c8fef167 | 1924 | authflags = kAuthorizationFlagDefaults | |
f7deaa1a | 1925 | kAuthorizationFlagExtendRights; |
1926 | ||
c8fef167 MS |
1927 | if ((status = AuthorizationCopyRights(con->authref, &authrights, |
1928 | kAuthorizationEmptyEnvironment, | |
f7deaa1a | 1929 | authflags, NULL)) != 0) |
1930 | { | |
1931 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1932 | "AuthorizationCopyRights(\"%s\") returned %d (%s)", | |
1933 | authright.name, (int)status, cssmErrorString(status)); | |
1934 | return (0); | |
1935 | } | |
1936 | ||
ffe32673 | 1937 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "AuthorizationCopyRights(\"%s\") succeeded.", authright.name); |
f7deaa1a | 1938 | |
1939 | return (1); | |
1940 | } | |
1941 | #endif /* HAVE_AUTHORIZATION_H */ | |
1942 | ||
1943 | ||
bd7854cb | 1944 | /* |
1945 | * 'compare_locations()' - Compare two locations. | |
1946 | */ | |
1947 | ||
1948 | static int /* O - Result of comparison */ | |
1949 | compare_locations(cupsd_location_t *a, /* I - First location */ | |
1950 | cupsd_location_t *b) /* I - Second location */ | |
1951 | { | |
1952 | return (strcmp(b->location, a->location)); | |
1953 | } | |
1954 | ||
1955 | ||
10d09e33 MS |
1956 | /* |
1957 | * 'copy_authmask()' - Copy function for auth masks. | |
1958 | */ | |
1959 | ||
1960 | static cupsd_authmask_t * /* O - New auth mask */ | |
1961 | copy_authmask(cupsd_authmask_t *mask, /* I - Existing auth mask */ | |
1962 | void *data) /* I - User data (unused) */ | |
1963 | { | |
1964 | cupsd_authmask_t *temp; /* New auth mask */ | |
1965 | ||
1966 | ||
1967 | (void)data; | |
1968 | ||
1969 | if ((temp = malloc(sizeof(cupsd_authmask_t))) != NULL) | |
1970 | { | |
1971 | memcpy(temp, mask, sizeof(cupsd_authmask_t)); | |
1972 | ||
1973 | if (temp->type == CUPSD_AUTH_NAME || temp->type == CUPSD_AUTH_INTERFACE) | |
1974 | { | |
1975 | /* | |
1976 | * Make a copy of the name... | |
1977 | */ | |
1978 | ||
1979 | if ((temp->mask.name.name = _cupsStrAlloc(temp->mask.name.name)) == NULL) | |
1980 | { | |
1981 | /* | |
1982 | * Failed to make copy... | |
1983 | */ | |
1984 | ||
1985 | free(temp); | |
1986 | temp = NULL; | |
1987 | } | |
1988 | } | |
1989 | } | |
1990 | ||
1991 | return (temp); | |
1992 | } | |
1993 | ||
1994 | ||
10d09e33 MS |
1995 | /* |
1996 | * 'free_authmask()' - Free function for auth masks. | |
1997 | */ | |
1998 | ||
1999 | static void | |
2000 | free_authmask(cupsd_authmask_t *mask, /* I - Auth mask to free */ | |
2001 | void *data) /* I - User data (unused) */ | |
2002 | { | |
2003 | (void)data; | |
2004 | ||
2005 | if (mask->type == CUPSD_AUTH_NAME || mask->type == CUPSD_AUTH_INTERFACE) | |
2006 | _cupsStrFree(mask->mask.name.name); | |
2007 | ||
2008 | free(mask); | |
2009 | } | |
2010 | ||
2011 | ||
ef416fc2 | 2012 | #if HAVE_LIBPAM |
2013 | /* | |
2014 | * 'pam_func()' - PAM conversation function. | |
2015 | */ | |
2016 | ||
2017 | static int /* O - Success or failure */ | |
2018 | pam_func( | |
2019 | int num_msg, /* I - Number of messages */ | |
2020 | const struct pam_message **msg, /* I - Messages */ | |
2021 | struct pam_response **resp, /* O - Responses */ | |
2022 | void *appdata_ptr) | |
2023 | /* I - Pointer to connection */ | |
2024 | { | |
2025 | int i; /* Looping var */ | |
2026 | struct pam_response *replies; /* Replies */ | |
2027 | cupsd_authdata_t *data; /* Pointer to auth data */ | |
2028 | ||
2029 | ||
2030 | /* | |
2031 | * Allocate memory for the responses... | |
2032 | */ | |
2033 | ||
7e86f2f6 | 2034 | if ((replies = malloc(sizeof(struct pam_response) * (size_t)num_msg)) == NULL) |
ef416fc2 | 2035 | return (PAM_CONV_ERR); |
2036 | ||
2037 | /* | |
2038 | * Answer all of the messages... | |
2039 | */ | |
2040 | ||
2041 | DEBUG_printf(("pam_func: appdata_ptr = %p\n", appdata_ptr)); | |
2042 | ||
ef416fc2 | 2043 | data = (cupsd_authdata_t *)appdata_ptr; |
ef416fc2 | 2044 | |
2045 | for (i = 0; i < num_msg; i ++) | |
2046 | { | |
2047 | DEBUG_printf(("pam_func: Message = \"%s\"\n", msg[i]->msg)); | |
2048 | ||
2049 | switch (msg[i]->msg_style) | |
2050 | { | |
2051 | case PAM_PROMPT_ECHO_ON: | |
2052 | DEBUG_printf(("pam_func: PAM_PROMPT_ECHO_ON, returning \"%s\"...\n", | |
2053 | data->username)); | |
2054 | replies[i].resp_retcode = PAM_SUCCESS; | |
2055 | replies[i].resp = strdup(data->username); | |
2056 | break; | |
2057 | ||
2058 | case PAM_PROMPT_ECHO_OFF: | |
2059 | DEBUG_printf(("pam_func: PAM_PROMPT_ECHO_OFF, returning \"%s\"...\n", | |
2060 | data->password)); | |
2061 | replies[i].resp_retcode = PAM_SUCCESS; | |
2062 | replies[i].resp = strdup(data->password); | |
2063 | break; | |
2064 | ||
2065 | case PAM_TEXT_INFO: | |
2066 | DEBUG_puts("pam_func: PAM_TEXT_INFO..."); | |
2067 | replies[i].resp_retcode = PAM_SUCCESS; | |
2068 | replies[i].resp = NULL; | |
2069 | break; | |
2070 | ||
2071 | case PAM_ERROR_MSG: | |
2072 | DEBUG_puts("pam_func: PAM_ERROR_MSG..."); | |
2073 | replies[i].resp_retcode = PAM_SUCCESS; | |
2074 | replies[i].resp = NULL; | |
2075 | break; | |
2076 | ||
2077 | default: | |
2078 | DEBUG_printf(("pam_func: Unknown PAM message %d...\n", | |
2079 | msg[i]->msg_style)); | |
2080 | free(replies); | |
2081 | return (PAM_CONV_ERR); | |
2082 | } | |
2083 | } | |
2084 | ||
2085 | /* | |
2086 | * Return the responses back to PAM... | |
2087 | */ | |
2088 | ||
2089 | *resp = replies; | |
2090 | ||
2091 | return (PAM_SUCCESS); | |
2092 | } | |
5a1d7a17 | 2093 | #else |
ef416fc2 | 2094 | |
2095 | ||
2096 | /* | |
2097 | * 'to64()' - Base64-encode an integer value... | |
2098 | */ | |
2099 | ||
2100 | static void | |
2101 | to64(char *s, /* O - Output string */ | |
2102 | unsigned long v, /* I - Value to encode */ | |
2103 | int n) /* I - Number of digits */ | |
2104 | { | |
2105 | const char *itoa64 = "./0123456789" | |
2106 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
2107 | "abcdefghijklmnopqrstuvwxyz"; | |
2108 | ||
2109 | ||
2110 | for (; n > 0; n --, v >>= 6) | |
2111 | *s++ = itoa64[v & 0x3f]; | |
2112 | } | |
2113 | #endif /* HAVE_LIBPAM */ |