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Commit | Line | Data |
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b423cd4c | 1 | /* |
5ec1fd3d | 2 | * Authorization routines for the CUPS scheduler. |
ef416fc2 | 3 | * |
3cd7b5e0 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 | * |
3cd7b5e0 MS |
10 | * Licensed under Apache License v2.0. See the file "LICENSE" for more |
11 | * information. | |
ef416fc2 | 12 | */ |
13 | ||
14 | /* | |
15 | * Include necessary headers... | |
16 | */ | |
17 | ||
18 | #include "cupsd.h" | |
19 | #include <grp.h> | |
20 | #ifdef HAVE_SHADOW_H | |
21 | # include <shadow.h> | |
22 | #endif /* HAVE_SHADOW_H */ | |
23 | #ifdef HAVE_CRYPT_H | |
24 | # include <crypt.h> | |
25 | #endif /* HAVE_CRYPT_H */ | |
26 | #if HAVE_LIBPAM | |
27 | # ifdef HAVE_PAM_PAM_APPL_H | |
28 | # include <pam/pam_appl.h> | |
29 | # else | |
30 | # include <security/pam_appl.h> | |
31 | # endif /* HAVE_PAM_PAM_APPL_H */ | |
32 | #endif /* HAVE_LIBPAM */ | |
bd7854cb | 33 | #ifdef HAVE_MEMBERSHIP_H |
34 | # include <membership.h> | |
35 | #endif /* HAVE_MEMBERSHIP_H */ | |
f7deaa1a | 36 | #ifdef HAVE_AUTHORIZATION_H |
37 | # include <Security/AuthorizationTags.h> | |
38 | # ifdef HAVE_SECBASEPRIV_H | |
39 | # include <Security/SecBasePriv.h> | |
40 | # else | |
41 | extern const char *cssmErrorString(int error); | |
42 | # endif /* HAVE_SECBASEPRIV_H */ | |
43 | #endif /* HAVE_AUTHORIZATION_H */ | |
db1f069b MS |
44 | #ifdef HAVE_SYS_PARAM_H |
45 | # include <sys/param.h> | |
46 | #endif /* HAVE_SYS_PARAM_H */ | |
bc44d920 | 47 | #ifdef HAVE_SYS_UCRED_H |
48 | # include <sys/ucred.h> | |
49 | typedef struct xucred cupsd_ucred_t; | |
50 | # define CUPSD_UCRED_UID(c) (c).cr_uid | |
51 | #else | |
5a9febac | 52 | # ifndef __OpenBSD__ |
bc44d920 | 53 | typedef struct ucred cupsd_ucred_t; |
5a9febac MS |
54 | # else |
55 | typedef struct sockpeercred cupsd_ucred_t; | |
56 | # endif | |
bc44d920 | 57 | # define CUPSD_UCRED_UID(c) (c).uid |
58 | #endif /* HAVE_SYS_UCRED_H */ | |
ef416fc2 | 59 | |
60 | ||
61 | /* | |
62 | * Local functions... | |
63 | */ | |
64 | ||
f7deaa1a | 65 | #ifdef HAVE_AUTHORIZATION_H |
66 | static int check_authref(cupsd_client_t *con, const char *right); | |
67 | #endif /* HAVE_AUTHORIZATION_H */ | |
bd7854cb | 68 | static int compare_locations(cupsd_location_t *a, |
69 | cupsd_location_t *b); | |
10d09e33 | 70 | static cupsd_authmask_t *copy_authmask(cupsd_authmask_t *am, void *data); |
10d09e33 | 71 | static void free_authmask(cupsd_authmask_t *am, void *data); |
ef416fc2 | 72 | #if HAVE_LIBPAM |
73 | static int pam_func(int, const struct pam_message **, | |
74 | struct pam_response **, void *); | |
5a1d7a17 | 75 | #else |
ef416fc2 | 76 | static void to64(char *s, unsigned long v, int n); |
77 | #endif /* HAVE_LIBPAM */ | |
78 | ||
79 | ||
80 | /* | |
81 | * Local structures... | |
82 | */ | |
83 | ||
84 | #if HAVE_LIBPAM | |
85 | typedef struct cupsd_authdata_s /**** Authentication data ****/ | |
86 | { | |
3e7fe0ca MS |
87 | char username[HTTP_MAX_VALUE], /* Username string */ |
88 | password[HTTP_MAX_VALUE]; /* Password string */ | |
ef416fc2 | 89 | } cupsd_authdata_t; |
90 | #endif /* HAVE_LIBPAM */ | |
91 | ||
92 | ||
ef416fc2 | 93 | /* |
10d09e33 | 94 | * 'cupsdAddIPMask()' - Add an IP address authorization mask. |
ef416fc2 | 95 | */ |
96 | ||
10d09e33 MS |
97 | int /* O - 1 on success, 0 on failure */ |
98 | cupsdAddIPMask( | |
99 | cups_array_t **masks, /* IO - Masks array (created as needed) */ | |
100 | const unsigned address[4], /* I - IP address */ | |
101 | const unsigned netmask[4]) /* I - IP netmask */ | |
ef416fc2 | 102 | { |
10d09e33 | 103 | cupsd_authmask_t temp; /* New host/domain mask */ |
ef416fc2 | 104 | |
105 | ||
ffe32673 | 106 | 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 | 107 | |
10d09e33 MS |
108 | temp.type = CUPSD_AUTH_IP; |
109 | memcpy(temp.mask.ip.address, address, sizeof(temp.mask.ip.address)); | |
110 | memcpy(temp.mask.ip.netmask, netmask, sizeof(temp.mask.ip.netmask)); | |
ef416fc2 | 111 | |
bd7854cb | 112 | /* |
10d09e33 | 113 | * Create the masks array as needed and add... |
bd7854cb | 114 | */ |
115 | ||
10d09e33 MS |
116 | if (!*masks) |
117 | *masks = cupsArrayNew3(NULL, NULL, NULL, 0, | |
118 | (cups_acopy_func_t)copy_authmask, | |
119 | (cups_afree_func_t)free_authmask); | |
ef416fc2 | 120 | |
10d09e33 MS |
121 | return (cupsArrayAdd(*masks, &temp)); |
122 | } | |
ef416fc2 | 123 | |
bd7854cb | 124 | |
10d09e33 MS |
125 | /* |
126 | * 'cupsdAddLocation()' - Add a location for authorization. | |
127 | */ | |
ef416fc2 | 128 | |
10d09e33 MS |
129 | void |
130 | cupsdAddLocation(cupsd_location_t *loc) /* I - Location to add */ | |
131 | { | |
ef416fc2 | 132 | /* |
10d09e33 | 133 | * Make sure the locations array is created... |
ef416fc2 | 134 | */ |
135 | ||
10d09e33 MS |
136 | if (!Locations) |
137 | Locations = cupsArrayNew3((cups_array_func_t)compare_locations, NULL, | |
138 | (cups_ahash_func_t)NULL, 0, | |
139 | (cups_acopy_func_t)NULL, | |
140 | (cups_afree_func_t)cupsdFreeLocation); | |
141 | ||
142 | if (Locations) | |
143 | { | |
144 | cupsArrayAdd(Locations, loc); | |
145 | ||
ffe32673 | 146 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddLocation: Added location \"%s\"", loc->location ? loc->location : "(null)"); |
10d09e33 | 147 | } |
ef416fc2 | 148 | } |
149 | ||
150 | ||
151 | /* | |
152 | * 'cupsdAddName()' - Add a name to a location... | |
153 | */ | |
154 | ||
155 | void | |
156 | cupsdAddName(cupsd_location_t *loc, /* I - Location to add to */ | |
157 | char *name) /* I - Name to add */ | |
158 | { | |
ffe32673 | 159 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddName(loc=%p, name=\"%s\")", loc, name); |
ef416fc2 | 160 | |
10d09e33 MS |
161 | if (!loc->names) |
162 | loc->names = cupsArrayNew3(NULL, NULL, NULL, 0, | |
163 | (cups_acopy_func_t)_cupsStrAlloc, | |
164 | (cups_afree_func_t)_cupsStrFree); | |
ef416fc2 | 165 | |
10d09e33 | 166 | if (!cupsArrayAdd(loc->names, name)) |
ef416fc2 | 167 | { |
168 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
169 | "Unable to duplicate name for location %s: %s", | |
e1d6a774 | 170 | loc->location ? loc->location : "nil", strerror(errno)); |
ef416fc2 | 171 | return; |
172 | } | |
ef416fc2 | 173 | } |
174 | ||
175 | ||
176 | /* | |
10d09e33 | 177 | * 'cupsdAddNameMask()' - Add a host or interface name authorization mask. |
ef416fc2 | 178 | */ |
179 | ||
10d09e33 MS |
180 | int /* O - 1 on success, 0 on failure */ |
181 | cupsdAddNameMask(cups_array_t **masks, /* IO - Masks array (created as needed) */ | |
182 | char *name) /* I - Host or interface name */ | |
ef416fc2 | 183 | { |
10d09e33 | 184 | cupsd_authmask_t temp; /* New host/domain mask */ |
ef416fc2 | 185 | char ifname[32], /* Interface name */ |
186 | *ifptr; /* Pointer to end of name */ | |
187 | ||
188 | ||
ffe32673 | 189 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddNameMask(masks=%p(%p), name=\"%s\")", masks, *masks, name); |
ef416fc2 | 190 | |
88f9aafc | 191 | if (!_cups_strcasecmp(name, "@LOCAL")) |
ef416fc2 | 192 | { |
193 | /* | |
10d09e33 | 194 | * Deny *interface*... |
ef416fc2 | 195 | */ |
196 | ||
10d09e33 MS |
197 | temp.type = CUPSD_AUTH_INTERFACE; |
198 | temp.mask.name.name = (char *)"*"; | |
ef416fc2 | 199 | } |
88f9aafc | 200 | else if (!_cups_strncasecmp(name, "@IF(", 4)) |
ef416fc2 | 201 | { |
202 | /* | |
10d09e33 | 203 | * Deny *interface*... |
ef416fc2 | 204 | */ |
205 | ||
206 | strlcpy(ifname, name + 4, sizeof(ifname)); | |
207 | ||
10d09e33 | 208 | ifptr = ifname + strlen(ifname) - 1; |
ef416fc2 | 209 | |
10d09e33 | 210 | if (ifptr >= ifname && *ifptr == ')') |
ef416fc2 | 211 | { |
212 | ifptr --; | |
213 | *ifptr = '\0'; | |
214 | } | |
215 | ||
10d09e33 MS |
216 | temp.type = CUPSD_AUTH_INTERFACE; |
217 | temp.mask.name.name = ifname; | |
ef416fc2 | 218 | } |
219 | else | |
220 | { | |
221 | /* | |
10d09e33 | 222 | * Deny name... |
ef416fc2 | 223 | */ |
224 | ||
10d09e33 MS |
225 | if (*name == '*') |
226 | name ++; | |
ef416fc2 | 227 | |
10d09e33 MS |
228 | temp.type = CUPSD_AUTH_NAME; |
229 | temp.mask.name.name = (char *)name; | |
230 | } | |
ef416fc2 | 231 | |
10d09e33 MS |
232 | /* |
233 | * Set the name length... | |
234 | */ | |
ef416fc2 | 235 | |
10d09e33 | 236 | temp.mask.name.length = strlen(temp.mask.name.name); |
ef416fc2 | 237 | |
10d09e33 MS |
238 | /* |
239 | * Create the masks array as needed and add... | |
240 | */ | |
ef416fc2 | 241 | |
10d09e33 MS |
242 | if (!*masks) |
243 | *masks = cupsArrayNew3(NULL, NULL, NULL, 0, | |
244 | (cups_acopy_func_t)copy_authmask, | |
245 | (cups_afree_func_t)free_authmask); | |
ef416fc2 | 246 | |
10d09e33 | 247 | return (cupsArrayAdd(*masks, &temp)); |
ef416fc2 | 248 | } |
249 | ||
250 | ||
251 | /* | |
252 | * 'cupsdAuthorize()' - Validate any authorization credentials. | |
253 | */ | |
254 | ||
255 | void | |
256 | cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */ | |
257 | { | |
258 | int type; /* Authentication type */ | |
f7deaa1a | 259 | const char *authorization; /* Pointer into Authorization string */ |
260 | char *ptr, /* Pointer into string */ | |
3e7fe0ca MS |
261 | username[HTTP_MAX_VALUE], |
262 | /* Username string */ | |
263 | password[HTTP_MAX_VALUE]; | |
264 | /* Password string */ | |
db0bd74a | 265 | cupsd_cert_t *localuser; /* Certificate username */ |
ef416fc2 | 266 | |
267 | ||
268 | /* | |
269 | * Locate the best matching location so we know what kind of | |
270 | * authentication to expect... | |
271 | */ | |
272 | ||
996acce8 | 273 | con->best = cupsdFindBest(con->uri, httpGetState(con->http)); |
5bd77a73 | 274 | con->type = CUPSD_AUTH_NONE; |
ef416fc2 | 275 | |
ffe32673 | 276 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "con->uri=\"%s\", con->best=%p(%s)", con->uri, con->best, con->best ? con->best->location : ""); |
ef416fc2 | 277 | |
5bd77a73 | 278 | if (con->best && con->best->type != CUPSD_AUTH_NONE) |
7ff4fea9 | 279 | { |
5bd77a73 | 280 | if (con->best->type == CUPSD_AUTH_DEFAULT) |
dcb445bc | 281 | type = cupsdDefaultAuthType(); |
7ff4fea9 MS |
282 | else |
283 | type = con->best->type; | |
284 | } | |
ef416fc2 | 285 | else |
dcb445bc | 286 | type = cupsdDefaultAuthType(); |
ef416fc2 | 287 | |
288 | /* | |
289 | * Decode the Authorization string... | |
290 | */ | |
291 | ||
996acce8 | 292 | authorization = httpGetField(con->http, HTTP_FIELD_AUTHORIZATION); |
ef416fc2 | 293 | |
ef416fc2 | 294 | username[0] = '\0'; |
295 | password[0] = '\0'; | |
296 | ||
07ed0e9a MS |
297 | #ifdef HAVE_GSSAPI |
298 | con->gss_uid = 0; | |
299 | #endif /* HAVE_GSSAPI */ | |
300 | ||
f7deaa1a | 301 | #ifdef HAVE_AUTHORIZATION_H |
302 | if (con->authref) | |
303 | { | |
304 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
305 | con->authref = NULL; | |
306 | } | |
307 | #endif /* HAVE_AUTHORIZATION_H */ | |
308 | ||
2fb76298 | 309 | if (!*authorization) |
ef416fc2 | 310 | { |
311 | /* | |
312 | * No authorization data provided, return early... | |
313 | */ | |
314 | ||
ffe32673 | 315 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "No authentication data provided."); |
ef416fc2 | 316 | return; |
317 | } | |
f7deaa1a | 318 | #ifdef HAVE_AUTHORIZATION_H |
c8fef167 | 319 | else if (!strncmp(authorization, "AuthRef ", 8) && |
5ec1fd3d | 320 | httpAddrLocalhost(httpGetAddress(con->http))) |
f7deaa1a | 321 | { |
322 | OSStatus status; /* Status */ | |
e0660879 MS |
323 | char authdata[HTTP_MAX_VALUE]; |
324 | /* Nonce value from client */ | |
f7deaa1a | 325 | int authlen; /* Auth string length */ |
326 | AuthorizationItemSet *authinfo; /* Authorization item set */ | |
327 | ||
328 | /* | |
329 | * Get the Authorization Services data... | |
330 | */ | |
331 | ||
c8fef167 | 332 | authorization += 8; |
f7deaa1a | 333 | while (isspace(*authorization & 255)) |
334 | authorization ++; | |
335 | ||
e0660879 MS |
336 | authlen = sizeof(authdata); |
337 | httpDecode64_2(authdata, &authlen, authorization); | |
f7deaa1a | 338 | |
339 | if (authlen != kAuthorizationExternalFormLength) | |
340 | { | |
ffe32673 | 341 | cupsdLogClient(con, CUPSD_LOG_ERROR, "External Authorization reference size is incorrect."); |
f7deaa1a | 342 | return; |
343 | } | |
344 | ||
e0660879 | 345 | if ((status = AuthorizationCreateFromExternalForm((AuthorizationExternalForm *)authdata, &con->authref)) != 0) |
f7deaa1a | 346 | { |
ffe32673 | 347 | cupsdLogClient(con, CUPSD_LOG_ERROR, "AuthorizationCreateFromExternalForm returned %d (%s)", (int)status, cssmErrorString(status)); |
f7deaa1a | 348 | return; |
349 | } | |
350 | ||
c8fef167 | 351 | username[0] = '\0'; |
ed6e7faf | 352 | |
c8fef167 | 353 | if (!AuthorizationCopyInfo(con->authref, kAuthorizationEnvironmentUsername, |
bf3816c7 | 354 | &authinfo)) |
e4572d57 | 355 | { |
ed6e7faf MS |
356 | if (authinfo->count == 1 && authinfo->items[0].value && |
357 | authinfo->items[0].valueLength >= 2) | |
c8fef167 | 358 | { |
ed6e7faf MS |
359 | strlcpy(username, authinfo->items[0].value, sizeof(username)); |
360 | ||
ffe32673 | 361 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using AuthRef.", username); |
c8fef167 MS |
362 | } |
363 | ||
e4572d57 | 364 | AuthorizationFreeItemSet(authinfo); |
e4572d57 | 365 | } |
355e94dc | 366 | |
c8fef167 MS |
367 | if (!username[0]) |
368 | { | |
369 | /* | |
370 | * No username in AuthRef, grab username using peer credentials... | |
371 | */ | |
372 | ||
373 | struct passwd *pwd; /* Password entry for this user */ | |
374 | cupsd_ucred_t peercred; /* Peer credentials */ | |
375 | socklen_t peersize; /* Size of peer credentials */ | |
376 | ||
377 | peersize = sizeof(peercred); | |
378 | ||
996acce8 | 379 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
c8fef167 | 380 | { |
ffe32673 | 381 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
c8fef167 MS |
382 | return; |
383 | } | |
384 | ||
385 | if ((pwd = getpwuid(CUPSD_UCRED_UID(peercred))) == NULL) | |
386 | { | |
ffe32673 | 387 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to find UID %d for peer credentials.", (int)CUPSD_UCRED_UID(peercred)); |
c8fef167 MS |
388 | return; |
389 | } | |
390 | ||
391 | strlcpy(username, pwd->pw_name, sizeof(username)); | |
392 | ||
ffe32673 | 393 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using AuthRef + PeerCred.", username); |
c8fef167 MS |
394 | } |
395 | ||
5bd77a73 | 396 | con->type = CUPSD_AUTH_BASIC; |
f7deaa1a | 397 | } |
398 | #endif /* HAVE_AUTHORIZATION_H */ | |
bc44d920 | 399 | #if defined(SO_PEERCRED) && defined(AF_LOCAL) |
400 | else if (!strncmp(authorization, "PeerCred ", 9) && | |
0d40cb1e | 401 | con->http->hostaddr->addr.sa_family == AF_LOCAL && con->best) |
bc44d920 | 402 | { |
403 | /* | |
404 | * Use peer credentials from domain socket connection... | |
405 | */ | |
406 | ||
407 | struct passwd *pwd; /* Password entry for this user */ | |
408 | cupsd_ucred_t peercred; /* Peer credentials */ | |
409 | socklen_t peersize; /* Size of peer credentials */ | |
f14324a7 MS |
410 | #ifdef HAVE_AUTHORIZATION_H |
411 | const char *name; /* Authorizing name */ | |
6961465f MS |
412 | int no_peer = 0; /* Don't allow peer credentials? */ |
413 | ||
414 | /* | |
415 | * See if we should allow peer credentials... | |
416 | */ | |
bc44d920 | 417 | |
f14324a7 MS |
418 | for (name = (char *)cupsArrayFirst(con->best->names); |
419 | name; | |
420 | name = (char *)cupsArrayNext(con->best->names)) | |
6961465f | 421 | { |
dcb445bc MS |
422 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) || |
423 | !_cups_strcasecmp(name, "@SYSTEM")) | |
f14324a7 | 424 | { |
6961465f MS |
425 | /* Normally don't want peer credentials if we need an auth key... */ |
426 | no_peer = 1; | |
427 | } | |
428 | else if (!_cups_strcasecmp(name, "@OWNER")) | |
429 | { | |
430 | /* but if @OWNER is present then we allow it... */ | |
431 | no_peer = 0; | |
432 | break; | |
f14324a7 | 433 | } |
6961465f MS |
434 | } |
435 | ||
436 | if (no_peer) | |
437 | { | |
ffe32673 | 438 | cupsdLogClient(con, CUPSD_LOG_ERROR, "PeerCred authentication not allowed for resource per AUTHKEY policy."); |
6961465f MS |
439 | return; |
440 | } | |
f14324a7 | 441 | #endif /* HAVE_AUTHORIZATION_H */ |
bc44d920 | 442 | |
443 | if ((pwd = getpwnam(authorization + 9)) == NULL) | |
444 | { | |
ffe32673 | 445 | cupsdLogClient(con, CUPSD_LOG_ERROR, "User \"%s\" does not exist.", authorization + 9); |
bc44d920 | 446 | return; |
447 | } | |
448 | ||
449 | peersize = sizeof(peercred); | |
450 | ||
f11a948a | 451 | # ifdef __APPLE__ |
996acce8 | 452 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
f11a948a | 453 | # else |
996acce8 | 454 | if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, &peersize)) |
f11a948a | 455 | # endif /* __APPLE__ */ |
bc44d920 | 456 | { |
ffe32673 | 457 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
bc44d920 | 458 | return; |
459 | } | |
460 | ||
461 | if (pwd->pw_uid != CUPSD_UCRED_UID(peercred)) | |
462 | { | |
ffe32673 | 463 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Invalid peer credentials for \"%s\" - got %d, expected %d.", authorization + 9, CUPSD_UCRED_UID(peercred), pwd->pw_uid); |
bc44d920 | 464 | # ifdef HAVE_SYS_UCRED_H |
ffe32673 MS |
465 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_version=%d", peercred.cr_version); |
466 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_uid=%d", peercred.cr_uid); | |
467 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_ngroups=%d", peercred.cr_ngroups); | |
468 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_groups[0]=%d", peercred.cr_groups[0]); | |
bc44d920 | 469 | # endif /* HAVE_SYS_UCRED_H */ |
470 | return; | |
471 | } | |
472 | ||
473 | strlcpy(username, authorization + 9, sizeof(username)); | |
355e94dc | 474 | |
eac3a0a0 MS |
475 | # ifdef HAVE_GSSAPI |
476 | con->gss_uid = CUPSD_UCRED_UID(peercred); | |
477 | # endif /* HAVE_GSSAPI */ | |
478 | ||
ffe32673 | 479 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as %s using PeerCred.", username); |
2fb76298 | 480 | |
5bd77a73 | 481 | con->type = CUPSD_AUTH_BASIC; |
bc44d920 | 482 | } |
483 | #endif /* SO_PEERCRED && AF_LOCAL */ | |
ef416fc2 | 484 | else if (!strncmp(authorization, "Local", 5) && |
5ec1fd3d | 485 | httpAddrLocalhost(httpGetAddress(con->http))) |
ef416fc2 | 486 | { |
487 | /* | |
488 | * Get Local certificate authentication data... | |
489 | */ | |
490 | ||
491 | authorization += 5; | |
80ca4592 | 492 | while (isspace(*authorization & 255)) |
ef416fc2 | 493 | authorization ++; |
494 | ||
0fa6c7fa | 495 | if ((localuser = cupsdFindCert(authorization)) == NULL) |
ef416fc2 | 496 | { |
ffe32673 | 497 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Local authentication certificate not found."); |
ef416fc2 | 498 | return; |
499 | } | |
2fb76298 | 500 | |
0fa6c7fa MS |
501 | strlcpy(username, localuser->username, sizeof(username)); |
502 | con->type = localuser->type; | |
503 | ||
ffe32673 | 504 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as %s using Local.", username); |
ef416fc2 | 505 | } |
2fb76298 | 506 | else if (!strncmp(authorization, "Basic", 5)) |
ef416fc2 | 507 | { |
508 | /* | |
509 | * Get the Basic authentication data... | |
510 | */ | |
511 | ||
512 | int userlen; /* Username:password length */ | |
513 | ||
514 | ||
515 | authorization += 5; | |
80ca4592 | 516 | while (isspace(*authorization & 255)) |
ef416fc2 | 517 | authorization ++; |
518 | ||
519 | userlen = sizeof(username); | |
520 | httpDecode64_2(username, &userlen, authorization); | |
521 | ||
522 | /* | |
523 | * Pull the username and password out... | |
524 | */ | |
525 | ||
526 | if ((ptr = strchr(username, ':')) == NULL) | |
527 | { | |
ffe32673 | 528 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Missing Basic password."); |
ef416fc2 | 529 | return; |
530 | } | |
531 | ||
532 | *ptr++ = '\0'; | |
533 | ||
534 | if (!username[0]) | |
535 | { | |
536 | /* | |
537 | * Username must not be empty... | |
538 | */ | |
539 | ||
ffe32673 | 540 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Empty Basic username."); |
ef416fc2 | 541 | return; |
542 | } | |
543 | ||
544 | if (!*ptr) | |
545 | { | |
546 | /* | |
547 | * Password must not be empty... | |
548 | */ | |
549 | ||
ffe32673 | 550 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Empty Basic password."); |
ef416fc2 | 551 | return; |
552 | } | |
553 | ||
554 | strlcpy(password, ptr, sizeof(password)); | |
555 | ||
556 | /* | |
557 | * Validate the username and password... | |
558 | */ | |
559 | ||
560 | switch (type) | |
561 | { | |
2fb76298 | 562 | default : |
5bd77a73 | 563 | case CUPSD_AUTH_BASIC : |
ef416fc2 | 564 | { |
565 | #if HAVE_LIBPAM | |
566 | /* | |
567 | * Only use PAM to do authentication. This supports MD5 | |
568 | * passwords, among other things... | |
569 | */ | |
570 | ||
571 | pam_handle_t *pamh; /* PAM authentication handle */ | |
572 | int pamerr; /* PAM error code */ | |
573 | struct pam_conv pamdata;/* PAM conversation data */ | |
574 | cupsd_authdata_t data; /* Authentication data */ | |
575 | ||
576 | ||
577 | strlcpy(data.username, username, sizeof(data.username)); | |
578 | strlcpy(data.password, password, sizeof(data.password)); | |
579 | ||
5a1d7a17 | 580 | # ifdef __sun |
e1d6a774 | 581 | pamdata.conv = (int (*)(int, struct pam_message **, |
582 | struct pam_response **, | |
583 | void *))pam_func; | |
584 | # else | |
ef416fc2 | 585 | pamdata.conv = pam_func; |
5a1d7a17 | 586 | # endif /* __sun */ |
ef416fc2 | 587 | pamdata.appdata_ptr = &data; |
588 | ||
ef416fc2 | 589 | pamerr = pam_start("cups", username, &pamdata, &pamh); |
590 | if (pamerr != PAM_SUCCESS) | |
591 | { | |
ffe32673 | 592 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_start() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 593 | return; |
594 | } | |
595 | ||
ee571f26 MS |
596 | # ifdef HAVE_PAM_SET_ITEM |
597 | # ifdef PAM_RHOST | |
996acce8 | 598 | pamerr = pam_set_item(pamh, PAM_RHOST, con->http->hostname); |
a4924f6c | 599 | if (pamerr != PAM_SUCCESS) |
ffe32673 | 600 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_set_item(PAM_RHOST) returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ee571f26 MS |
601 | # endif /* PAM_RHOST */ |
602 | ||
603 | # ifdef PAM_TTY | |
604 | pamerr = pam_set_item(pamh, PAM_TTY, "cups"); | |
605 | if (pamerr != PAM_SUCCESS) | |
ffe32673 | 606 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_set_item(PAM_TTY) returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ee571f26 MS |
607 | # endif /* PAM_TTY */ |
608 | # endif /* HAVE_PAM_SET_ITEM */ | |
609 | ||
ef416fc2 | 610 | pamerr = pam_authenticate(pamh, PAM_SILENT); |
611 | if (pamerr != PAM_SUCCESS) | |
612 | { | |
ffe32673 | 613 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_authenticate() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 614 | pam_end(pamh, 0); |
615 | return; | |
616 | } | |
617 | ||
94da7e34 MS |
618 | # ifdef HAVE_PAM_SETCRED |
619 | pamerr = pam_setcred(pamh, PAM_ESTABLISH_CRED | PAM_SILENT); | |
620 | if (pamerr != PAM_SUCCESS) | |
ffe32673 | 621 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_setcred() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
94da7e34 MS |
622 | # endif /* HAVE_PAM_SETCRED */ |
623 | ||
ef416fc2 | 624 | pamerr = pam_acct_mgmt(pamh, PAM_SILENT); |
625 | if (pamerr != PAM_SUCCESS) | |
626 | { | |
ffe32673 | 627 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_acct_mgmt() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 628 | pam_end(pamh, 0); |
629 | return; | |
630 | } | |
631 | ||
632 | pam_end(pamh, PAM_SUCCESS); | |
633 | ||
ef416fc2 | 634 | #else |
635 | /* | |
636 | * Use normal UNIX password file-based authentication... | |
637 | */ | |
638 | ||
639 | char *pass; /* Encrypted password */ | |
640 | struct passwd *pw; /* User password data */ | |
641 | # ifdef HAVE_SHADOW_H | |
642 | struct spwd *spw; /* Shadow password data */ | |
643 | # endif /* HAVE_SHADOW_H */ | |
644 | ||
645 | ||
646 | pw = getpwnam(username); /* Get the current password */ | |
647 | endpwent(); /* Close the password file */ | |
648 | ||
649 | if (!pw) | |
650 | { | |
651 | /* | |
652 | * No such user... | |
653 | */ | |
654 | ||
ffe32673 | 655 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unknown username \"%s\".", username); |
80ca4592 | 656 | return; |
ef416fc2 | 657 | } |
658 | ||
659 | # ifdef HAVE_SHADOW_H | |
660 | spw = getspnam(username); | |
661 | endspent(); | |
662 | ||
663 | if (!spw && !strcmp(pw->pw_passwd, "x")) | |
664 | { | |
665 | /* | |
666 | * Don't allow blank passwords! | |
667 | */ | |
668 | ||
ffe32673 | 669 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Username \"%s\" has no shadow password.", username); |
ef416fc2 | 670 | return; |
671 | } | |
672 | ||
673 | if (spw && !spw->sp_pwdp[0] && !pw->pw_passwd[0]) | |
674 | # else | |
675 | if (!pw->pw_passwd[0]) | |
676 | # endif /* HAVE_SHADOW_H */ | |
677 | { | |
678 | /* | |
679 | * Don't allow blank passwords! | |
680 | */ | |
681 | ||
ffe32673 | 682 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Username \"%s\" has no password.", username); |
ef416fc2 | 683 | return; |
684 | } | |
685 | ||
686 | /* | |
687 | * OK, the password isn't blank, so compare with what came from the | |
688 | * client... | |
689 | */ | |
690 | ||
3cd7b5e0 | 691 | pass = crypt(password, pw->pw_passwd); |
ef416fc2 | 692 | |
ef416fc2 | 693 | if (!pass || strcmp(pw->pw_passwd, pass)) |
694 | { | |
695 | # ifdef HAVE_SHADOW_H | |
696 | if (spw) | |
697 | { | |
3cd7b5e0 | 698 | pass = crypt(password, spw->sp_pwdp); |
ef416fc2 | 699 | |
ef416fc2 | 700 | if (pass == NULL || strcmp(spw->sp_pwdp, pass)) |
701 | { | |
ffe32673 | 702 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Authentication failed for user \"%s\".", username); |
ef416fc2 | 703 | return; |
704 | } | |
705 | } | |
706 | else | |
707 | # endif /* HAVE_SHADOW_H */ | |
708 | { | |
ffe32673 | 709 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Authentication failed for user \"%s\".", username); |
ef416fc2 | 710 | return; |
711 | } | |
712 | } | |
713 | #endif /* HAVE_LIBPAM */ | |
714 | } | |
355e94dc | 715 | |
ffe32673 | 716 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using Basic.", username); |
ef416fc2 | 717 | break; |
ef416fc2 | 718 | } |
2fb76298 MS |
719 | |
720 | con->type = type; | |
ef416fc2 | 721 | } |
f7deaa1a | 722 | #ifdef HAVE_GSSAPI |
c8fef167 | 723 | else if (!strncmp(authorization, "Negotiate", 9)) |
f7deaa1a | 724 | { |
725 | int len; /* Length of authorization string */ | |
f7deaa1a | 726 | gss_ctx_id_t context; /* Authorization context */ |
727 | OM_uint32 major_status, /* Major status code */ | |
728 | minor_status; /* Minor status code */ | |
729 | gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER, | |
730 | /* Input token from string */ | |
731 | output_token = GSS_C_EMPTY_BUFFER; | |
732 | /* Output token for username */ | |
733 | gss_name_t client_name; /* Client name */ | |
734 | ||
735 | ||
f42414bf | 736 | # ifdef __APPLE__ |
737 | /* | |
738 | * If the weak-linked GSSAPI/Kerberos library is not present, don't try | |
739 | * to use it... | |
740 | */ | |
741 | ||
d2ff4622 | 742 | if (&gss_init_sec_context == NULL) |
f42414bf | 743 | { |
ffe32673 | 744 | cupsdLogClient(con, CUPSD_LOG_WARN, "GSSAPI/Kerberos authentication failed because the Kerberos framework is not present."); |
f42414bf | 745 | return; |
746 | } | |
747 | # endif /* __APPLE__ */ | |
748 | ||
f7deaa1a | 749 | /* |
750 | * Find the start of the Kerberos input token... | |
751 | */ | |
752 | ||
753 | authorization += 9; | |
754 | while (isspace(*authorization & 255)) | |
755 | authorization ++; | |
756 | ||
757 | if (!*authorization) | |
758 | { | |
ffe32673 | 759 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "No authentication data specified."); |
f7deaa1a | 760 | return; |
761 | } | |
762 | ||
f7deaa1a | 763 | /* |
764 | * Decode the authorization string to get the input token... | |
765 | */ | |
766 | ||
7e86f2f6 MS |
767 | len = (int)strlen(authorization); |
768 | input_token.value = malloc((size_t)len); | |
f7deaa1a | 769 | input_token.value = httpDecode64_2(input_token.value, &len, |
c7017ecc | 770 | authorization); |
7e86f2f6 | 771 | input_token.length = (size_t)len; |
f7deaa1a | 772 | |
773 | /* | |
774 | * Accept the input token to get the authorization info... | |
775 | */ | |
776 | ||
777 | context = GSS_C_NO_CONTEXT; | |
778 | client_name = GSS_C_NO_NAME; | |
779 | major_status = gss_accept_sec_context(&minor_status, | |
780 | &context, | |
dcb445bc | 781 | ServerCreds, |
f7deaa1a | 782 | &input_token, |
783 | GSS_C_NO_CHANNEL_BINDINGS, | |
784 | &client_name, | |
785 | NULL, | |
07ed0e9a MS |
786 | &output_token, |
787 | NULL, | |
f7deaa1a | 788 | NULL, |
07ed0e9a MS |
789 | NULL); |
790 | ||
791 | if (output_token.length > 0) | |
792 | gss_release_buffer(&minor_status, &output_token); | |
f7deaa1a | 793 | |
794 | if (GSS_ERROR(major_status)) | |
795 | { | |
ffe32673 | 796 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Error accepting GSSAPI security context.", con->number); |
f7deaa1a | 797 | |
798 | if (context != GSS_C_NO_CONTEXT) | |
799 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
f7deaa1a | 800 | return; |
801 | } | |
802 | ||
97c9a8d7 MS |
803 | con->have_gss = 1; |
804 | ||
76cd9e37 MS |
805 | /* |
806 | * Get the username associated with the client's credentials... | |
f7deaa1a | 807 | */ |
808 | ||
355e94dc | 809 | if (major_status == GSS_S_CONTINUE_NEEDED) |
ffe32673 | 810 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Credentials not complete.", con->number); |
355e94dc | 811 | else if (major_status == GSS_S_COMPLETE) |
f7deaa1a | 812 | { |
c8fef167 | 813 | major_status = gss_display_name(&minor_status, client_name, |
f7deaa1a | 814 | &output_token, NULL); |
815 | ||
816 | if (GSS_ERROR(major_status)) | |
817 | { | |
ffe32673 | 818 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Error getting username.", con->number); |
f7deaa1a | 819 | gss_release_name(&minor_status, &client_name); |
820 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
f7deaa1a | 821 | return; |
822 | } | |
823 | ||
f7deaa1a | 824 | strlcpy(username, output_token.value, sizeof(username)); |
355e94dc | 825 | |
ffe32673 | 826 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using Negotiate.", username); |
f7deaa1a | 827 | |
e07d4801 | 828 | gss_release_name(&minor_status, &client_name); |
f7deaa1a | 829 | gss_release_buffer(&minor_status, &output_token); |
2fb76298 | 830 | |
5bd77a73 | 831 | con->type = CUPSD_AUTH_NEGOTIATE; |
f7deaa1a | 832 | } |
e07d4801 MS |
833 | |
834 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
07ed0e9a MS |
835 | |
836 | # if defined(SO_PEERCRED) && defined(AF_LOCAL) | |
837 | /* | |
838 | * Get the client's UID if we are printing locally - that allows a backend | |
839 | * to run as the correct user to get Kerberos credentials of its own. | |
840 | */ | |
841 | ||
5ec1fd3d | 842 | if (httpAddrFamily(con->http->hostaddr) == AF_LOCAL) |
07ed0e9a MS |
843 | { |
844 | cupsd_ucred_t peercred; /* Peer credentials */ | |
845 | socklen_t peersize; /* Size of peer credentials */ | |
846 | ||
847 | peersize = sizeof(peercred); | |
848 | ||
849 | # ifdef __APPLE__ | |
996acce8 | 850 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
07ed0e9a | 851 | # else |
996acce8 | 852 | if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, |
07ed0e9a MS |
853 | &peersize)) |
854 | # endif /* __APPLE__ */ | |
855 | { | |
ffe32673 | 856 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
07ed0e9a MS |
857 | } |
858 | else | |
859 | { | |
ffe32673 | 860 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Using credentials for UID %d.", CUPSD_UCRED_UID(peercred)); |
07ed0e9a MS |
861 | con->gss_uid = CUPSD_UCRED_UID(peercred); |
862 | } | |
863 | } | |
864 | # endif /* SO_PEERCRED && AF_LOCAL */ | |
f7deaa1a | 865 | } |
866 | #endif /* HAVE_GSSAPI */ | |
2fb76298 | 867 | else |
ef416fc2 | 868 | { |
355e94dc | 869 | char scheme[256]; /* Auth scheme... */ |
355e94dc MS |
870 | |
871 | ||
872 | if (sscanf(authorization, "%255s", scheme) != 1) | |
5a9febac | 873 | strlcpy(scheme, "UNKNOWN", sizeof(scheme)); |
355e94dc | 874 | |
ffe32673 | 875 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Bad authentication data \"%s ...\".", scheme); |
ef416fc2 | 876 | return; |
877 | } | |
878 | ||
879 | /* | |
880 | * If we get here, then we were able to validate the username and | |
881 | * password - copy the validated username and password to the client | |
882 | * data and return... | |
883 | */ | |
884 | ||
885 | strlcpy(con->username, username, sizeof(con->username)); | |
886 | strlcpy(con->password, password, sizeof(con->password)); | |
ef416fc2 | 887 | } |
888 | ||
889 | ||
080811b1 MS |
890 | /* |
891 | * 'cupsdCheckAccess()' - Check whether the given address is allowed to | |
892 | * access a location. | |
893 | */ | |
894 | ||
895 | int /* O - 1 if allowed, 0 otherwise */ | |
896 | cupsdCheckAccess( | |
897 | unsigned ip[4], /* I - Client address */ | |
5ec1fd3d | 898 | const char *name, /* I - Client hostname */ |
7e86f2f6 | 899 | size_t namelen, /* I - Length of hostname */ |
080811b1 MS |
900 | cupsd_location_t *loc) /* I - Location to check */ |
901 | { | |
902 | int allow; /* 1 if allowed, 0 otherwise */ | |
903 | ||
904 | ||
88f9aafc | 905 | if (!_cups_strcasecmp(name, "localhost")) |
080811b1 MS |
906 | { |
907 | /* | |
908 | * Access from localhost (127.0.0.1 or ::1) is always allowed... | |
909 | */ | |
910 | ||
911 | return (1); | |
912 | } | |
913 | else | |
914 | { | |
915 | /* | |
916 | * Do authorization checks on the domain/address... | |
917 | */ | |
918 | ||
919 | switch (loc->order_type) | |
920 | { | |
921 | default : | |
922 | allow = 0; /* anti-compiler-warning-code */ | |
923 | break; | |
924 | ||
5bd77a73 | 925 | case CUPSD_AUTH_ALLOW : /* Order Deny,Allow */ |
080811b1 MS |
926 | allow = 1; |
927 | ||
10d09e33 | 928 | if (cupsdCheckAuth(ip, name, namelen, loc->deny)) |
080811b1 MS |
929 | allow = 0; |
930 | ||
10d09e33 | 931 | if (cupsdCheckAuth(ip, name, namelen, loc->allow)) |
080811b1 MS |
932 | allow = 1; |
933 | break; | |
934 | ||
5bd77a73 | 935 | case CUPSD_AUTH_DENY : /* Order Allow,Deny */ |
080811b1 MS |
936 | allow = 0; |
937 | ||
10d09e33 | 938 | if (cupsdCheckAuth(ip, name, namelen, loc->allow)) |
080811b1 MS |
939 | allow = 1; |
940 | ||
10d09e33 | 941 | if (cupsdCheckAuth(ip, name, namelen, loc->deny)) |
080811b1 MS |
942 | allow = 0; |
943 | break; | |
944 | } | |
945 | } | |
946 | ||
947 | return (allow); | |
948 | } | |
949 | ||
950 | ||
ef416fc2 | 951 | /* |
952 | * 'cupsdCheckAuth()' - Check authorization masks. | |
953 | */ | |
954 | ||
955 | int /* O - 1 if mask matches, 0 otherwise */ | |
10d09e33 | 956 | cupsdCheckAuth(unsigned ip[4], /* I - Client address */ |
5ec1fd3d | 957 | const char *name, /* I - Client hostname */ |
7e86f2f6 | 958 | size_t name_len, /* I - Length of hostname */ |
10d09e33 | 959 | cups_array_t *masks) /* I - Masks */ |
ef416fc2 | 960 | { |
10d09e33 MS |
961 | int i; /* Looping var */ |
962 | cupsd_authmask_t *mask; /* Current mask */ | |
963 | cupsd_netif_t *iface; /* Network interface */ | |
964 | unsigned netip4; /* IPv4 network address */ | |
ef416fc2 | 965 | #ifdef AF_INET6 |
10d09e33 | 966 | unsigned netip6[4]; /* IPv6 network address */ |
ef416fc2 | 967 | #endif /* AF_INET6 */ |
968 | ||
e07d4801 | 969 | |
10d09e33 MS |
970 | for (mask = (cupsd_authmask_t *)cupsArrayFirst(masks); |
971 | mask; | |
972 | mask = (cupsd_authmask_t *)cupsArrayNext(masks)) | |
ef416fc2 | 973 | { |
10d09e33 | 974 | switch (mask->type) |
ef416fc2 | 975 | { |
5bd77a73 | 976 | case CUPSD_AUTH_INTERFACE : |
ef416fc2 | 977 | /* |
978 | * Check for a match with a network interface... | |
979 | */ | |
980 | ||
981 | netip4 = htonl(ip[3]); | |
982 | ||
983 | #ifdef AF_INET6 | |
984 | netip6[0] = htonl(ip[0]); | |
985 | netip6[1] = htonl(ip[1]); | |
986 | netip6[2] = htonl(ip[2]); | |
987 | netip6[3] = htonl(ip[3]); | |
988 | #endif /* AF_INET6 */ | |
989 | ||
84ec3a84 MS |
990 | cupsdNetIFUpdate(); |
991 | ||
10d09e33 | 992 | if (!strcmp(mask->mask.name.name, "*")) |
ef416fc2 | 993 | { |
e07d4801 MS |
994 | #ifdef __APPLE__ |
995 | /* | |
996 | * Allow Back-to-My-Mac addresses... | |
997 | */ | |
998 | ||
999 | if ((ip[0] & 0xff000000) == 0xfd000000) | |
1000 | return (1); | |
1001 | #endif /* __APPLE__ */ | |
1002 | ||
ef416fc2 | 1003 | /* |
1004 | * Check against all local interfaces... | |
1005 | */ | |
1006 | ||
e00b005a | 1007 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
1008 | iface; | |
1009 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) | |
ef416fc2 | 1010 | { |
1011 | /* | |
1012 | * Only check local interfaces... | |
1013 | */ | |
1014 | ||
1015 | if (!iface->is_local) | |
1016 | continue; | |
1017 | ||
1018 | if (iface->address.addr.sa_family == AF_INET) | |
1019 | { | |
1020 | /* | |
1021 | * Check IPv4 address... | |
1022 | */ | |
1023 | ||
1024 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1025 | (iface->address.ipv4.sin_addr.s_addr & | |
1026 | iface->mask.ipv4.sin_addr.s_addr)) | |
1027 | return (1); | |
1028 | } | |
1029 | #ifdef AF_INET6 | |
1030 | else | |
1031 | { | |
1032 | /* | |
1033 | * Check IPv6 address... | |
1034 | */ | |
1035 | ||
1036 | for (i = 0; i < 4; i ++) | |
1037 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1038 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1039 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1040 | break; | |
1041 | ||
1042 | if (i == 4) | |
1043 | return (1); | |
1044 | } | |
1045 | #endif /* AF_INET6 */ | |
1046 | } | |
1047 | } | |
1048 | else | |
1049 | { | |
1050 | /* | |
1051 | * Check the named interface... | |
1052 | */ | |
1053 | ||
e00b005a | 1054 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
ed486911 | 1055 | iface; |
e00b005a | 1056 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) |
ef416fc2 | 1057 | { |
10d09e33 | 1058 | if (strcmp(mask->mask.name.name, iface->name)) |
ed486911 | 1059 | continue; |
1060 | ||
ef416fc2 | 1061 | if (iface->address.addr.sa_family == AF_INET) |
1062 | { | |
1063 | /* | |
1064 | * Check IPv4 address... | |
1065 | */ | |
1066 | ||
1067 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1068 | (iface->address.ipv4.sin_addr.s_addr & | |
1069 | iface->mask.ipv4.sin_addr.s_addr)) | |
1070 | return (1); | |
1071 | } | |
1072 | #ifdef AF_INET6 | |
1073 | else | |
1074 | { | |
1075 | /* | |
1076 | * Check IPv6 address... | |
1077 | */ | |
1078 | ||
1079 | for (i = 0; i < 4; i ++) | |
1080 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1081 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1082 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1083 | break; | |
1084 | ||
1085 | if (i == 4) | |
1086 | return (1); | |
1087 | } | |
1088 | #endif /* AF_INET6 */ | |
1089 | } | |
1090 | } | |
1091 | break; | |
1092 | ||
5bd77a73 | 1093 | case CUPSD_AUTH_NAME : |
ef416fc2 | 1094 | /* |
1095 | * Check for exact name match... | |
1096 | */ | |
1097 | ||
88f9aafc | 1098 | if (!_cups_strcasecmp(name, mask->mask.name.name)) |
ef416fc2 | 1099 | return (1); |
1100 | ||
1101 | /* | |
1102 | * Check for domain match... | |
1103 | */ | |
1104 | ||
10d09e33 MS |
1105 | if (name_len >= mask->mask.name.length && |
1106 | mask->mask.name.name[0] == '.' && | |
88f9aafc | 1107 | !_cups_strcasecmp(name + name_len - mask->mask.name.length, |
10d09e33 | 1108 | mask->mask.name.name)) |
ef416fc2 | 1109 | return (1); |
1110 | break; | |
1111 | ||
5bd77a73 | 1112 | case CUPSD_AUTH_IP : |
ef416fc2 | 1113 | /* |
1114 | * Check for IP/network address match... | |
1115 | */ | |
1116 | ||
1117 | for (i = 0; i < 4; i ++) | |
10d09e33 MS |
1118 | if ((ip[i] & mask->mask.ip.netmask[i]) != |
1119 | mask->mask.ip.address[i]) | |
ef416fc2 | 1120 | break; |
1121 | ||
1122 | if (i == 4) | |
1123 | return (1); | |
1124 | break; | |
1125 | } | |
ef416fc2 | 1126 | } |
1127 | ||
1128 | return (0); | |
1129 | } | |
1130 | ||
1131 | ||
1132 | /* | |
1133 | * 'cupsdCheckGroup()' - Check for a user's group membership. | |
1134 | */ | |
1135 | ||
1136 | int /* O - 1 if user is a member, 0 otherwise */ | |
1137 | cupsdCheckGroup( | |
1138 | const char *username, /* I - User name */ | |
1139 | struct passwd *user, /* I - System user info */ | |
1140 | const char *groupname) /* I - Group name */ | |
1141 | { | |
8922323b | 1142 | int i; /* Looping var */ |
36374693 MS |
1143 | struct group *group; /* Group info */ |
1144 | gid_t groupid; /* ID of named group */ | |
bd7854cb | 1145 | #ifdef HAVE_MBR_UID_TO_UUID |
8922323b MS |
1146 | uuid_t useruuid, /* UUID for username */ |
1147 | groupuuid; /* UUID for groupname */ | |
1148 | int is_member; /* True if user is a member of group */ | |
bd7854cb | 1149 | #endif /* HAVE_MBR_UID_TO_UUID */ |
ef416fc2 | 1150 | |
1151 | ||
ffe32673 | 1152 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdCheckGroup(username=\"%s\", user=%p, groupname=\"%s\")", username, user, groupname); |
ef416fc2 | 1153 | |
1154 | /* | |
1155 | * Validate input... | |
1156 | */ | |
1157 | ||
1158 | if (!username || !groupname) | |
1159 | return (0); | |
1160 | ||
1161 | /* | |
1162 | * Check to see if the user is a member of the named group... | |
1163 | */ | |
1164 | ||
1165 | group = getgrnam(groupname); | |
1166 | endgrent(); | |
1167 | ||
1168 | if (group != NULL) | |
1169 | { | |
1170 | /* | |
1171 | * Group exists, check it... | |
1172 | */ | |
1173 | ||
36374693 MS |
1174 | groupid = group->gr_gid; |
1175 | ||
6eb98aee MS |
1176 | #ifdef HAVE_GETGROUPLIST |
1177 | if (user) | |
1178 | { | |
f093225b | 1179 | int ngroups; /* Number of groups */ |
fdc3c81a MS |
1180 | # ifdef __APPLE__ |
1181 | int groups[2048]; /* Groups that user belongs to */ | |
1182 | # else | |
f093225b | 1183 | gid_t groups[2048]; /* Groups that user belongs to */ |
fdc3c81a | 1184 | # endif /* __APPLE__ */ |
6eb98aee MS |
1185 | |
1186 | ngroups = (int)(sizeof(groups) / sizeof(groups[0])); | |
fdc3c81a MS |
1187 | # ifdef __APPLE__ |
1188 | getgrouplist(username, (int)user->pw_gid, groups, &ngroups); | |
1189 | # else | |
f093225b | 1190 | getgrouplist(username, user->pw_gid, groups, &ngroups); |
fdc3c81a | 1191 | #endif /* __APPLE__ */ |
6eb98aee MS |
1192 | |
1193 | for (i = 0; i < ngroups; i ++) | |
36374693 | 1194 | if ((int)groupid == (int)groups[i]) |
6eb98aee MS |
1195 | return (1); |
1196 | } | |
6eb98aee | 1197 | |
36374693 | 1198 | #else |
ef416fc2 | 1199 | for (i = 0; group->gr_mem[i]; i ++) |
36374693 | 1200 | { |
88f9aafc | 1201 | if (!_cups_strcasecmp(username, group->gr_mem[i])) |
ef416fc2 | 1202 | return (1); |
36374693 MS |
1203 | } |
1204 | #endif /* HAVE_GETGROUPLIST */ | |
ef416fc2 | 1205 | } |
36374693 MS |
1206 | else |
1207 | groupid = (gid_t)-1; | |
ef416fc2 | 1208 | |
1209 | /* | |
1210 | * Group doesn't exist or user not in group list, check the group ID | |
1211 | * against the user's group ID... | |
1212 | */ | |
1213 | ||
36374693 | 1214 | if (user && groupid == user->pw_gid) |
ef416fc2 | 1215 | return (1); |
1216 | ||
bd7854cb | 1217 | #ifdef HAVE_MBR_UID_TO_UUID |
1218 | /* | |
d4874933 | 1219 | * Check group membership through macOS membership API... |
bd7854cb | 1220 | */ |
1221 | ||
dd1abb6b | 1222 | if (user && !mbr_uid_to_uuid(user->pw_uid, useruuid)) |
c9fc04c6 | 1223 | { |
36374693 | 1224 | if (groupid != (gid_t)-1) |
8922323b MS |
1225 | { |
1226 | /* | |
1227 | * Map group name to UUID and check membership... | |
1228 | */ | |
c9fc04c6 | 1229 | |
36374693 | 1230 | if (!mbr_gid_to_uuid(groupid, groupuuid)) |
8922323b MS |
1231 | if (!mbr_check_membership(useruuid, groupuuid, &is_member)) |
1232 | if (is_member) | |
1233 | return (1); | |
1234 | } | |
1235 | else if (groupname[0] == '#') | |
1236 | { | |
1237 | /* | |
1238 | * Use UUID directly and check for equality (user UUID) and | |
1239 | * membership (group UUID)... | |
1240 | */ | |
1241 | ||
1242 | if (!uuid_parse((char *)groupname + 1, groupuuid)) | |
1243 | { | |
1244 | if (!uuid_compare(useruuid, groupuuid)) | |
c9fc04c6 | 1245 | return (1); |
8922323b MS |
1246 | else if (!mbr_check_membership(useruuid, groupuuid, &is_member)) |
1247 | if (is_member) | |
1248 | return (1); | |
1249 | } | |
1250 | ||
1251 | return (0); | |
1252 | } | |
1253 | } | |
1254 | else if (groupname[0] == '#') | |
1255 | return (0); | |
bd7854cb | 1256 | #endif /* HAVE_MBR_UID_TO_UUID */ |
1257 | ||
ef416fc2 | 1258 | /* |
1259 | * If we get this far, then the user isn't part of the named group... | |
1260 | */ | |
1261 | ||
1262 | return (0); | |
1263 | } | |
1264 | ||
1265 | ||
1266 | /* | |
1267 | * 'cupsdCopyLocation()' - Make a copy of a location... | |
1268 | */ | |
1269 | ||
1270 | cupsd_location_t * /* O - New location */ | |
1271 | cupsdCopyLocation( | |
10d09e33 | 1272 | cupsd_location_t *loc) /* I - Original location */ |
ef416fc2 | 1273 | { |
ef416fc2 | 1274 | cupsd_location_t *temp; /* New location */ |
ef416fc2 | 1275 | |
1276 | ||
ef416fc2 | 1277 | /* |
10d09e33 | 1278 | * Make a copy of the original location... |
ef416fc2 | 1279 | */ |
1280 | ||
10d09e33 | 1281 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) |
ef416fc2 | 1282 | return (NULL); |
1283 | ||
ef416fc2 | 1284 | /* |
1285 | * Copy the information from the original location to the new one. | |
1286 | */ | |
1287 | ||
10d09e33 MS |
1288 | if (!loc) |
1289 | return (temp); | |
ef416fc2 | 1290 | |
10d09e33 MS |
1291 | if (loc->location) |
1292 | temp->location = _cupsStrAlloc(loc->location); | |
ef416fc2 | 1293 | |
d2ff4622 | 1294 | temp->length = loc->length; |
10d09e33 MS |
1295 | temp->limit = loc->limit; |
1296 | temp->order_type = loc->order_type; | |
1297 | temp->type = loc->type; | |
1298 | temp->level = loc->level; | |
1299 | temp->satisfy = loc->satisfy; | |
1300 | temp->encryption = loc->encryption; | |
1301 | ||
1302 | if (loc->names) | |
1303 | { | |
1304 | if ((temp->names = cupsArrayDup(loc->names)) == NULL) | |
ef416fc2 | 1305 | { |
1306 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1307 | "Unable to allocate memory for %d names: %s", |
1308 | cupsArrayCount(loc->names), strerror(errno)); | |
bd7854cb | 1309 | |
10d09e33 | 1310 | cupsdFreeLocation(temp); |
ef416fc2 | 1311 | return (NULL); |
1312 | } | |
ef416fc2 | 1313 | } |
1314 | ||
10d09e33 | 1315 | if (loc->allow) |
ef416fc2 | 1316 | { |
1317 | /* | |
1318 | * Copy allow rules... | |
1319 | */ | |
1320 | ||
10d09e33 | 1321 | if ((temp->allow = cupsArrayDup(loc->allow)) == NULL) |
ef416fc2 | 1322 | { |
1323 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1324 | "Unable to allocate memory for %d allow rules: %s", |
1325 | cupsArrayCount(loc->allow), strerror(errno)); | |
1326 | cupsdFreeLocation(temp); | |
ef416fc2 | 1327 | return (NULL); |
1328 | } | |
ef416fc2 | 1329 | } |
1330 | ||
10d09e33 | 1331 | if (loc->deny) |
ef416fc2 | 1332 | { |
1333 | /* | |
1334 | * Copy deny rules... | |
1335 | */ | |
1336 | ||
10d09e33 | 1337 | if ((temp->deny = cupsArrayDup(loc->deny)) == NULL) |
ef416fc2 | 1338 | { |
1339 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1340 | "Unable to allocate memory for %d deny rules: %s", |
1341 | cupsArrayCount(loc->deny), strerror(errno)); | |
1342 | cupsdFreeLocation(temp); | |
ef416fc2 | 1343 | return (NULL); |
1344 | } | |
ef416fc2 | 1345 | } |
1346 | ||
1347 | return (temp); | |
1348 | } | |
1349 | ||
1350 | ||
1351 | /* | |
1352 | * 'cupsdDeleteAllLocations()' - Free all memory used for location authorization. | |
1353 | */ | |
1354 | ||
1355 | void | |
1356 | cupsdDeleteAllLocations(void) | |
1357 | { | |
ef416fc2 | 1358 | /* |
10d09e33 | 1359 | * Free the location array, which will free all of the locations... |
ef416fc2 | 1360 | */ |
1361 | ||
bd7854cb | 1362 | cupsArrayDelete(Locations); |
1363 | Locations = NULL; | |
ef416fc2 | 1364 | } |
1365 | ||
1366 | ||
ef416fc2 | 1367 | /* |
1368 | * 'cupsdFindBest()' - Find the location entry that best matches the resource. | |
1369 | */ | |
1370 | ||
1371 | cupsd_location_t * /* O - Location that matches */ | |
1372 | cupsdFindBest(const char *path, /* I - Resource path */ | |
1373 | http_state_t state) /* I - HTTP state/request */ | |
1374 | { | |
ef416fc2 | 1375 | char uri[HTTP_MAX_URI], |
1376 | /* URI in request... */ | |
1377 | *uriptr; /* Pointer into URI */ | |
1378 | cupsd_location_t *loc, /* Current location */ | |
1379 | *best; /* Best match for location so far */ | |
7e86f2f6 | 1380 | size_t bestlen; /* Length of best match */ |
ef416fc2 | 1381 | int limit; /* Limit field */ |
5bd77a73 | 1382 | static const int limits[] = /* Map http_status_t to CUPSD_AUTH_LIMIT_xyz */ |
ef416fc2 | 1383 | { |
5bd77a73 MS |
1384 | CUPSD_AUTH_LIMIT_ALL, |
1385 | CUPSD_AUTH_LIMIT_OPTIONS, | |
1386 | CUPSD_AUTH_LIMIT_GET, | |
1387 | CUPSD_AUTH_LIMIT_GET, | |
1388 | CUPSD_AUTH_LIMIT_HEAD, | |
1389 | CUPSD_AUTH_LIMIT_POST, | |
1390 | CUPSD_AUTH_LIMIT_POST, | |
1391 | CUPSD_AUTH_LIMIT_POST, | |
1392 | CUPSD_AUTH_LIMIT_PUT, | |
1393 | CUPSD_AUTH_LIMIT_PUT, | |
1394 | CUPSD_AUTH_LIMIT_DELETE, | |
1395 | CUPSD_AUTH_LIMIT_TRACE, | |
1396 | CUPSD_AUTH_LIMIT_ALL, | |
d2ff4622 MS |
1397 | CUPSD_AUTH_LIMIT_ALL, |
1398 | CUPSD_AUTH_LIMIT_ALL, | |
5bd77a73 | 1399 | CUPSD_AUTH_LIMIT_ALL |
ef416fc2 | 1400 | }; |
1401 | ||
1402 | ||
1403 | /* | |
1404 | * First copy the connection URI to a local string so we have drop | |
1405 | * any .ppd extension from the pathname in /printers or /classes | |
1406 | * URIs... | |
1407 | */ | |
1408 | ||
1409 | strlcpy(uri, path, sizeof(uri)); | |
1410 | ||
c26ceab0 MS |
1411 | if ((uriptr = strchr(uri, '?')) != NULL) |
1412 | *uriptr = '\0'; /* Drop trailing query string */ | |
1413 | ||
1414 | if ((uriptr = uri + strlen(uri) - 1) > uri && *uriptr == '/') | |
1415 | *uriptr = '\0'; /* Remove trailing '/' */ | |
1416 | ||
ef416fc2 | 1417 | if (!strncmp(uri, "/printers/", 10) || |
1418 | !strncmp(uri, "/classes/", 9)) | |
1419 | { | |
1420 | /* | |
1421 | * Check if the URI has .ppd on the end... | |
1422 | */ | |
1423 | ||
1424 | uriptr = uri + strlen(uri) - 4; /* len > 4 if we get here... */ | |
1425 | ||
1426 | if (!strcmp(uriptr, ".ppd")) | |
1427 | *uriptr = '\0'; | |
1428 | } | |
1429 | ||
ef416fc2 | 1430 | /* |
1431 | * Loop through the list of locations to find a match... | |
1432 | */ | |
1433 | ||
1434 | limit = limits[state]; | |
1435 | best = NULL; | |
1436 | bestlen = 0; | |
1437 | ||
ffe32673 | 1438 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: uri=\"%s\", limit=%x...", uri, limit); |
d2ff4622 MS |
1439 | |
1440 | ||
bd7854cb | 1441 | for (loc = (cupsd_location_t *)cupsArrayFirst(Locations); |
1442 | loc; | |
1443 | loc = (cupsd_location_t *)cupsArrayNext(Locations)) | |
ef416fc2 | 1444 | { |
d2ff4622 | 1445 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: Location %s(%d) Limit %x", loc->location ? loc->location : "(null)", (int)loc->length, loc->limit); |
ef416fc2 | 1446 | |
1447 | if (!strncmp(uri, "/printers/", 10) || !strncmp(uri, "/classes/", 9)) | |
1448 | { | |
1449 | /* | |
1450 | * Use case-insensitive comparison for queue names... | |
1451 | */ | |
1452 | ||
e1d6a774 | 1453 | if (loc->length > bestlen && loc->location && |
88f9aafc | 1454 | !_cups_strncasecmp(uri, loc->location, loc->length) && |
ef416fc2 | 1455 | loc->location[0] == '/' && |
1456 | (limit & loc->limit) != 0) | |
1457 | { | |
1458 | best = loc; | |
1459 | bestlen = loc->length; | |
1460 | } | |
1461 | } | |
1462 | else | |
1463 | { | |
1464 | /* | |
1465 | * Use case-sensitive comparison for other URIs... | |
1466 | */ | |
1467 | ||
e1d6a774 | 1468 | if (loc->length > bestlen && loc->location && |
ef416fc2 | 1469 | !strncmp(uri, loc->location, loc->length) && |
1470 | loc->location[0] == '/' && | |
1471 | (limit & loc->limit) != 0) | |
1472 | { | |
1473 | best = loc; | |
1474 | bestlen = loc->length; | |
1475 | } | |
1476 | } | |
1477 | } | |
1478 | ||
1479 | /* | |
1480 | * Return the match, if any... | |
1481 | */ | |
1482 | ||
ffe32673 | 1483 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: best=%s", best ? best->location : "NONE"); |
ef416fc2 | 1484 | |
1485 | return (best); | |
1486 | } | |
1487 | ||
1488 | ||
1489 | /* | |
1490 | * 'cupsdFindLocation()' - Find the named location. | |
1491 | */ | |
1492 | ||
1493 | cupsd_location_t * /* O - Location that matches */ | |
1494 | cupsdFindLocation(const char *location) /* I - Connection */ | |
1495 | { | |
bd7854cb | 1496 | cupsd_location_t key; /* Search key */ |
ef416fc2 | 1497 | |
1498 | ||
bd7854cb | 1499 | key.location = (char *)location; |
ef416fc2 | 1500 | |
bd7854cb | 1501 | return ((cupsd_location_t *)cupsArrayFind(Locations, &key)); |
ef416fc2 | 1502 | } |
1503 | ||
1504 | ||
10d09e33 MS |
1505 | /* |
1506 | * 'cupsdFreeLocation()' - Free all memory used by a location. | |
1507 | */ | |
1508 | ||
1509 | void | |
1510 | cupsdFreeLocation(cupsd_location_t *loc)/* I - Location to free */ | |
1511 | { | |
1512 | cupsArrayDelete(loc->names); | |
1513 | cupsArrayDelete(loc->allow); | |
1514 | cupsArrayDelete(loc->deny); | |
1515 | ||
1516 | _cupsStrFree(loc->location); | |
1517 | free(loc); | |
1518 | } | |
1519 | ||
1520 | ||
ef416fc2 | 1521 | /* |
1522 | * 'cupsdIsAuthorized()' - Check to see if the user is authorized... | |
1523 | */ | |
1524 | ||
1525 | http_status_t /* O - HTTP_OK if authorized or error code */ | |
1526 | cupsdIsAuthorized(cupsd_client_t *con, /* I - Connection */ | |
1527 | const char *owner)/* I - Owner of object */ | |
1528 | { | |
10d09e33 | 1529 | int i, /* Looping vars */ |
2fb76298 MS |
1530 | auth, /* Authorization status */ |
1531 | type; /* Type of authentication */ | |
5ec1fd3d MS |
1532 | http_addr_t *hostaddr = httpGetAddress(con->http); |
1533 | /* Client address */ | |
1534 | const char *hostname = httpGetHostname(con->http, NULL, 0); | |
1535 | /* Client hostname */ | |
ef416fc2 | 1536 | unsigned address[4]; /* Authorization address */ |
1537 | cupsd_location_t *best; /* Best match for location so far */ | |
7e86f2f6 | 1538 | size_t hostlen; /* Length of hostname */ |
10d09e33 MS |
1539 | char *name, /* Current username */ |
1540 | username[256], /* Username to authorize */ | |
db1f069b MS |
1541 | ownername[256], /* Owner name to authorize */ |
1542 | *ptr; /* Pointer into username */ | |
ef416fc2 | 1543 | struct passwd *pw; /* User password data */ |
1544 | static const char * const levels[] = /* Auth levels */ | |
1545 | { | |
1546 | "ANON", | |
1547 | "USER", | |
1548 | "GROUP" | |
1549 | }; | |
1550 | static const char * const types[] = /* Auth types */ | |
1551 | { | |
2fb76298 MS |
1552 | "None", |
1553 | "Basic", | |
2fb76298 | 1554 | "Negotiate" |
ef416fc2 | 1555 | }; |
1556 | ||
1557 | ||
ffe32673 | 1558 | 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 | 1559 | if (owner) |
ffe32673 | 1560 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: owner=\"%s\"", owner); |
ef416fc2 | 1561 | |
1562 | /* | |
1563 | * If there is no "best" authentication rule for this request, then | |
1564 | * access is allowed from the local system and denied from other | |
1565 | * addresses... | |
1566 | */ | |
1567 | ||
1568 | if (!con->best) | |
1569 | { | |
5ec1fd3d MS |
1570 | if (httpAddrLocalhost(httpGetAddress(con->http)) || |
1571 | !strcmp(hostname, ServerName) || | |
1572 | cupsArrayFind(ServerAlias, (void *)hostname)) | |
ef416fc2 | 1573 | return (HTTP_OK); |
1574 | else | |
1575 | return (HTTP_FORBIDDEN); | |
1576 | } | |
1577 | ||
1578 | best = con->best; | |
1579 | ||
5bd77a73 | 1580 | if ((type = best->type) == CUPSD_AUTH_DEFAULT) |
dcb445bc | 1581 | type = cupsdDefaultAuthType(); |
2fb76298 | 1582 | |
ffe32673 | 1583 | 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 | 1584 | |
5bd77a73 | 1585 | if (best->limit == CUPSD_AUTH_LIMIT_IPP) |
ffe32673 | 1586 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: op=%x(%s)", best->op, ippOpString(best->op)); |
ef416fc2 | 1587 | |
1588 | /* | |
1589 | * Check host/ip-based accesses... | |
1590 | */ | |
1591 | ||
1592 | #ifdef AF_INET6 | |
5ec1fd3d | 1593 | if (httpAddrFamily(hostaddr) == AF_INET6) |
ef416fc2 | 1594 | { |
1595 | /* | |
1596 | * Copy IPv6 address... | |
1597 | */ | |
1598 | ||
5ec1fd3d MS |
1599 | address[0] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[0]); |
1600 | address[1] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[1]); | |
1601 | address[2] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[2]); | |
1602 | address[3] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[3]); | |
ef416fc2 | 1603 | } |
1604 | else | |
1605 | #endif /* AF_INET6 */ | |
996acce8 | 1606 | if (con->http->hostaddr->addr.sa_family == AF_INET) |
ef416fc2 | 1607 | { |
1608 | /* | |
1609 | * Copy IPv4 address... | |
1610 | */ | |
1611 | ||
1612 | address[0] = 0; | |
1613 | address[1] = 0; | |
1614 | address[2] = 0; | |
5ec1fd3d | 1615 | address[3] = ntohl(hostaddr->ipv4.sin_addr.s_addr); |
ef416fc2 | 1616 | } |
1617 | else | |
1618 | memset(address, 0, sizeof(address)); | |
1619 | ||
5ec1fd3d | 1620 | hostlen = strlen(hostname); |
ef416fc2 | 1621 | |
5ec1fd3d | 1622 | auth = cupsdCheckAccess(address, hostname, hostlen, best) |
5bd77a73 | 1623 | ? CUPSD_AUTH_ALLOW : CUPSD_AUTH_DENY; |
ef416fc2 | 1624 | |
ffe32673 | 1625 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: auth=CUPSD_AUTH_%s...", auth ? "DENY" : "ALLOW"); |
ef416fc2 | 1626 | |
5bd77a73 | 1627 | if (auth == CUPSD_AUTH_DENY && best->satisfy == CUPSD_AUTH_SATISFY_ALL) |
ef416fc2 | 1628 | return (HTTP_FORBIDDEN); |
1629 | ||
1630 | #ifdef HAVE_SSL | |
1631 | /* | |
1632 | * See if encryption is required... | |
1633 | */ | |
1634 | ||
996acce8 | 1635 | if ((best->encryption >= HTTP_ENCRYPT_REQUIRED && !con->http->tls && |
5ec1fd3d MS |
1636 | _cups_strcasecmp(hostname, "localhost") && |
1637 | !httpAddrLocalhost(hostaddr) && | |
5bd77a73 | 1638 | best->satisfy == CUPSD_AUTH_SATISFY_ALL) && |
c8fef167 | 1639 | !(type == CUPSD_AUTH_NEGOTIATE || |
dcb445bc MS |
1640 | (type == CUPSD_AUTH_NONE && |
1641 | cupsdDefaultAuthType() == CUPSD_AUTH_NEGOTIATE))) | |
ef416fc2 | 1642 | { |
355e94dc | 1643 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
ef416fc2 | 1644 | "cupsdIsAuthorized: Need upgrade to TLS..."); |
1645 | return (HTTP_UPGRADE_REQUIRED); | |
1646 | } | |
1647 | #endif /* HAVE_SSL */ | |
1648 | ||
1649 | /* | |
1650 | * Now see what access level is required... | |
1651 | */ | |
1652 | ||
5bd77a73 | 1653 | if (best->level == CUPSD_AUTH_ANON || /* Anonymous access - allow it */ |
10d09e33 | 1654 | (type == CUPSD_AUTH_NONE && cupsArrayCount(best->names) == 0)) |
ef416fc2 | 1655 | return (HTTP_OK); |
1656 | ||
5bd77a73 MS |
1657 | if (!con->username[0] && type == CUPSD_AUTH_NONE && |
1658 | best->limit == CUPSD_AUTH_LIMIT_IPP) | |
ef416fc2 | 1659 | { |
1660 | /* | |
1661 | * Check for unauthenticated username... | |
1662 | */ | |
1663 | ||
1664 | ipp_attribute_t *attr; /* requesting-user-name attribute */ | |
1665 | ||
1666 | ||
1667 | attr = ippFindAttribute(con->request, "requesting-user-name", IPP_TAG_NAME); | |
1668 | if (attr) | |
1669 | { | |
355e94dc | 1670 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
ef416fc2 | 1671 | "cupsdIsAuthorized: requesting-user-name=\"%s\"", |
1672 | attr->values[0].string.text); | |
db1f069b | 1673 | strlcpy(username, attr->values[0].string.text, sizeof(username)); |
ef416fc2 | 1674 | } |
5bd77a73 | 1675 | else if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY) |
ef416fc2 | 1676 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1677 | else | |
1678 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1679 | } | |
fa73b229 | 1680 | else |
1681 | { | |
355e94dc | 1682 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdIsAuthorized: username=\"%s\"", |
fa73b229 | 1683 | con->username); |
1684 | ||
f7deaa1a | 1685 | #ifdef HAVE_AUTHORIZATION_H |
1686 | if (!con->username[0] && !con->authref) | |
1687 | #else | |
fa73b229 | 1688 | if (!con->username[0]) |
f7deaa1a | 1689 | #endif /* HAVE_AUTHORIZATION_H */ |
fa73b229 | 1690 | { |
5bd77a73 | 1691 | if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY) |
fa73b229 | 1692 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1693 | else | |
1694 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1695 | } | |
1696 | ||
eac3a0a0 | 1697 | |
5bd77a73 | 1698 | if (con->type != type && type != CUPSD_AUTH_NONE && |
eac3a0a0 MS |
1699 | #ifdef HAVE_GSSAPI |
1700 | (type != CUPSD_AUTH_NEGOTIATE || con->gss_uid <= 0) && | |
1701 | #endif /* HAVE_GSSAPI */ | |
e0660879 | 1702 | con->type != CUPSD_AUTH_BASIC) |
2fb76298 | 1703 | { |
e0660879 | 1704 | cupsdLogMessage(CUPSD_LOG_ERROR, "Authorized using %s, expected %s.", |
2fb76298 MS |
1705 | types[con->type], types[type]); |
1706 | ||
1707 | return (HTTP_UNAUTHORIZED); | |
1708 | } | |
1709 | ||
db1f069b | 1710 | strlcpy(username, con->username, sizeof(username)); |
fa73b229 | 1711 | } |
ef416fc2 | 1712 | |
1713 | /* | |
fa73b229 | 1714 | * OK, got a username. See if we need normal user access, or group |
ef416fc2 | 1715 | * access... (root always matches) |
1716 | */ | |
1717 | ||
fa73b229 | 1718 | if (!strcmp(username, "root")) |
ef416fc2 | 1719 | return (HTTP_OK); |
1720 | ||
db1f069b MS |
1721 | /* |
1722 | * Strip any @domain or @KDC from the username and owner... | |
1723 | */ | |
1724 | ||
1725 | if ((ptr = strchr(username, '@')) != NULL) | |
1726 | *ptr = '\0'; | |
1727 | ||
1728 | if (owner) | |
1729 | { | |
1730 | strlcpy(ownername, owner, sizeof(ownername)); | |
1731 | ||
1732 | if ((ptr = strchr(ownername, '@')) != NULL) | |
1733 | *ptr = '\0'; | |
1734 | } | |
1735 | else | |
1736 | ownername[0] = '\0'; | |
1737 | ||
ef416fc2 | 1738 | /* |
1739 | * Get the user info... | |
1740 | */ | |
1741 | ||
f7deaa1a | 1742 | if (username[0]) |
1743 | { | |
1744 | pw = getpwnam(username); | |
1745 | endpwent(); | |
1746 | } | |
1747 | else | |
1748 | pw = NULL; | |
ef416fc2 | 1749 | |
5bd77a73 | 1750 | if (best->level == CUPSD_AUTH_USER) |
ef416fc2 | 1751 | { |
1752 | /* | |
1753 | * If there are no names associated with this location, then | |
1754 | * any valid user is OK... | |
1755 | */ | |
1756 | ||
10d09e33 | 1757 | if (cupsArrayCount(best->names) == 0) |
ef416fc2 | 1758 | return (HTTP_OK); |
1759 | ||
1760 | /* | |
1761 | * Otherwise check the user list and return OK if this user is | |
1762 | * allowed... | |
1763 | */ | |
1764 | ||
ffe32673 | 1765 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking user membership..."); |
ef416fc2 | 1766 | |
f7deaa1a | 1767 | #ifdef HAVE_AUTHORIZATION_H |
1768 | /* | |
1769 | * If an authorization reference was supplied it must match a right name... | |
1770 | */ | |
1771 | ||
1772 | if (con->authref) | |
1773 | { | |
10d09e33 MS |
1774 | for (name = (char *)cupsArrayFirst(best->names); |
1775 | name; | |
1776 | name = (char *)cupsArrayNext(best->names)) | |
f7deaa1a | 1777 | { |
88f9aafc | 1778 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) && check_authref(con, name + 9)) |
f7deaa1a | 1779 | return (HTTP_OK); |
88f9aafc | 1780 | else if (!_cups_strcasecmp(name, "@SYSTEM") && SystemGroupAuthKey && |
f7deaa1a | 1781 | check_authref(con, SystemGroupAuthKey)) |
1782 | return (HTTP_OK); | |
1783 | } | |
1784 | ||
ee571f26 | 1785 | return (HTTP_FORBIDDEN); |
f7deaa1a | 1786 | } |
1787 | #endif /* HAVE_AUTHORIZATION_H */ | |
1788 | ||
10d09e33 MS |
1789 | for (name = (char *)cupsArrayFirst(best->names); |
1790 | name; | |
1791 | name = (char *)cupsArrayNext(best->names)) | |
ef416fc2 | 1792 | { |
88f9aafc MS |
1793 | if (!_cups_strcasecmp(name, "@OWNER") && owner && |
1794 | !_cups_strcasecmp(username, ownername)) | |
ef416fc2 | 1795 | return (HTTP_OK); |
88f9aafc | 1796 | else if (!_cups_strcasecmp(name, "@SYSTEM")) |
ef416fc2 | 1797 | { |
10d09e33 MS |
1798 | for (i = 0; i < NumSystemGroups; i ++) |
1799 | if (cupsdCheckGroup(username, pw, SystemGroups[i])) | |
ef416fc2 | 1800 | return (HTTP_OK); |
1801 | } | |
10d09e33 | 1802 | else if (name[0] == '@') |
ef416fc2 | 1803 | { |
10d09e33 | 1804 | if (cupsdCheckGroup(username, pw, name + 1)) |
ef416fc2 | 1805 | return (HTTP_OK); |
1806 | } | |
88f9aafc | 1807 | else if (!_cups_strcasecmp(username, name)) |
ef416fc2 | 1808 | return (HTTP_OK); |
1809 | } | |
1810 | ||
85dda01c | 1811 | return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED); |
ef416fc2 | 1812 | } |
1813 | ||
1814 | /* | |
1815 | * Check to see if this user is in any of the named groups... | |
1816 | */ | |
1817 | ||
ffe32673 | 1818 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking group membership..."); |
ef416fc2 | 1819 | |
1820 | /* | |
1821 | * Check to see if this user is in any of the named groups... | |
1822 | */ | |
1823 | ||
10d09e33 MS |
1824 | for (name = (char *)cupsArrayFirst(best->names); |
1825 | name; | |
1826 | name = (char *)cupsArrayNext(best->names)) | |
ef416fc2 | 1827 | { |
ffe32673 | 1828 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking group \"%s\" membership...", name); |
ef416fc2 | 1829 | |
88f9aafc | 1830 | if (!_cups_strcasecmp(name, "@SYSTEM")) |
ef416fc2 | 1831 | { |
10d09e33 MS |
1832 | for (i = 0; i < NumSystemGroups; i ++) |
1833 | if (cupsdCheckGroup(username, pw, SystemGroups[i])) | |
ef416fc2 | 1834 | return (HTTP_OK); |
1835 | } | |
10d09e33 | 1836 | else if (cupsdCheckGroup(username, pw, name)) |
ef416fc2 | 1837 | return (HTTP_OK); |
1838 | } | |
1839 | ||
1840 | /* | |
1841 | * The user isn't part of the specified group, so deny access... | |
1842 | */ | |
1843 | ||
ffe32673 | 1844 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdIsAuthorized: User not in group(s)."); |
ef416fc2 | 1845 | |
85dda01c | 1846 | return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED); |
ef416fc2 | 1847 | } |
1848 | ||
1849 | ||
1850 | /* | |
10d09e33 MS |
1851 | * 'cupsdNewLocation()' - Create a new location for authorization. |
1852 | * | |
1853 | * Note: Still need to call cupsdAddLocation() to add it to the list of global | |
1854 | * locations. | |
ef416fc2 | 1855 | */ |
1856 | ||
10d09e33 MS |
1857 | cupsd_location_t * /* O - Pointer to new location record */ |
1858 | cupsdNewLocation(const char *location) /* I - Location path */ | |
ef416fc2 | 1859 | { |
10d09e33 | 1860 | cupsd_location_t *temp; /* New location */ |
ef416fc2 | 1861 | |
1862 | ||
1863 | /* | |
10d09e33 | 1864 | * Try to allocate memory for the new location. |
ef416fc2 | 1865 | */ |
1866 | ||
10d09e33 | 1867 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) |
ef416fc2 | 1868 | return (NULL); |
1869 | ||
1870 | /* | |
10d09e33 | 1871 | * Initialize the record and copy the name over... |
ef416fc2 | 1872 | */ |
1873 | ||
10d09e33 MS |
1874 | if ((temp->location = _cupsStrAlloc(location)) == NULL) |
1875 | { | |
1876 | free(temp); | |
ef416fc2 | 1877 | return (NULL); |
10d09e33 | 1878 | } |
ef416fc2 | 1879 | |
10d09e33 | 1880 | temp->length = strlen(temp->location); |
ef416fc2 | 1881 | |
1882 | /* | |
10d09e33 | 1883 | * Return the new record... |
ef416fc2 | 1884 | */ |
1885 | ||
ef416fc2 | 1886 | return (temp); |
1887 | } | |
1888 | ||
1889 | ||
f7deaa1a | 1890 | #ifdef HAVE_AUTHORIZATION_H |
1891 | /* | |
1892 | * 'check_authref()' - Check if an authorization services reference has the | |
1893 | * supplied right. | |
1894 | */ | |
1895 | ||
1896 | static int /* O - 1 if right is valid, 0 otherwise */ | |
1897 | check_authref(cupsd_client_t *con, /* I - Connection */ | |
1898 | const char *right) /* I - Right name */ | |
1899 | { | |
1900 | OSStatus status; /* OS Status */ | |
1901 | AuthorizationItem authright; /* Authorization right */ | |
1902 | AuthorizationRights authrights; /* Authorization rights */ | |
1903 | AuthorizationFlags authflags; /* Authorization flags */ | |
1904 | ||
1905 | ||
1906 | /* | |
1907 | * Check to see if the user is allowed to perform the task... | |
1908 | */ | |
1909 | ||
1910 | if (!con->authref) | |
1911 | return (0); | |
1912 | ||
1913 | authright.name = right; | |
1914 | authright.valueLength = 0; | |
1915 | authright.value = NULL; | |
1916 | authright.flags = 0; | |
1917 | ||
1918 | authrights.count = 1; | |
1919 | authrights.items = &authright; | |
1920 | ||
c8fef167 | 1921 | authflags = kAuthorizationFlagDefaults | |
f7deaa1a | 1922 | kAuthorizationFlagExtendRights; |
1923 | ||
c8fef167 MS |
1924 | if ((status = AuthorizationCopyRights(con->authref, &authrights, |
1925 | kAuthorizationEmptyEnvironment, | |
f7deaa1a | 1926 | authflags, NULL)) != 0) |
1927 | { | |
1928 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1929 | "AuthorizationCopyRights(\"%s\") returned %d (%s)", | |
1930 | authright.name, (int)status, cssmErrorString(status)); | |
1931 | return (0); | |
1932 | } | |
1933 | ||
ffe32673 | 1934 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "AuthorizationCopyRights(\"%s\") succeeded.", authright.name); |
f7deaa1a | 1935 | |
1936 | return (1); | |
1937 | } | |
1938 | #endif /* HAVE_AUTHORIZATION_H */ | |
1939 | ||
1940 | ||
bd7854cb | 1941 | /* |
1942 | * 'compare_locations()' - Compare two locations. | |
1943 | */ | |
1944 | ||
1945 | static int /* O - Result of comparison */ | |
1946 | compare_locations(cupsd_location_t *a, /* I - First location */ | |
1947 | cupsd_location_t *b) /* I - Second location */ | |
1948 | { | |
1949 | return (strcmp(b->location, a->location)); | |
1950 | } | |
1951 | ||
1952 | ||
10d09e33 MS |
1953 | /* |
1954 | * 'copy_authmask()' - Copy function for auth masks. | |
1955 | */ | |
1956 | ||
1957 | static cupsd_authmask_t * /* O - New auth mask */ | |
1958 | copy_authmask(cupsd_authmask_t *mask, /* I - Existing auth mask */ | |
1959 | void *data) /* I - User data (unused) */ | |
1960 | { | |
1961 | cupsd_authmask_t *temp; /* New auth mask */ | |
1962 | ||
1963 | ||
1964 | (void)data; | |
1965 | ||
1966 | if ((temp = malloc(sizeof(cupsd_authmask_t))) != NULL) | |
1967 | { | |
1968 | memcpy(temp, mask, sizeof(cupsd_authmask_t)); | |
1969 | ||
1970 | if (temp->type == CUPSD_AUTH_NAME || temp->type == CUPSD_AUTH_INTERFACE) | |
1971 | { | |
1972 | /* | |
1973 | * Make a copy of the name... | |
1974 | */ | |
1975 | ||
1976 | if ((temp->mask.name.name = _cupsStrAlloc(temp->mask.name.name)) == NULL) | |
1977 | { | |
1978 | /* | |
1979 | * Failed to make copy... | |
1980 | */ | |
1981 | ||
1982 | free(temp); | |
1983 | temp = NULL; | |
1984 | } | |
1985 | } | |
1986 | } | |
1987 | ||
1988 | return (temp); | |
1989 | } | |
1990 | ||
1991 | ||
10d09e33 MS |
1992 | /* |
1993 | * 'free_authmask()' - Free function for auth masks. | |
1994 | */ | |
1995 | ||
1996 | static void | |
1997 | free_authmask(cupsd_authmask_t *mask, /* I - Auth mask to free */ | |
1998 | void *data) /* I - User data (unused) */ | |
1999 | { | |
2000 | (void)data; | |
2001 | ||
2002 | if (mask->type == CUPSD_AUTH_NAME || mask->type == CUPSD_AUTH_INTERFACE) | |
2003 | _cupsStrFree(mask->mask.name.name); | |
2004 | ||
2005 | free(mask); | |
2006 | } | |
2007 | ||
2008 | ||
ef416fc2 | 2009 | #if HAVE_LIBPAM |
2010 | /* | |
2011 | * 'pam_func()' - PAM conversation function. | |
2012 | */ | |
2013 | ||
2014 | static int /* O - Success or failure */ | |
2015 | pam_func( | |
2016 | int num_msg, /* I - Number of messages */ | |
2017 | const struct pam_message **msg, /* I - Messages */ | |
2018 | struct pam_response **resp, /* O - Responses */ | |
2019 | void *appdata_ptr) | |
2020 | /* I - Pointer to connection */ | |
2021 | { | |
2022 | int i; /* Looping var */ | |
2023 | struct pam_response *replies; /* Replies */ | |
2024 | cupsd_authdata_t *data; /* Pointer to auth data */ | |
2025 | ||
2026 | ||
2027 | /* | |
2028 | * Allocate memory for the responses... | |
2029 | */ | |
2030 | ||
7e86f2f6 | 2031 | if ((replies = malloc(sizeof(struct pam_response) * (size_t)num_msg)) == NULL) |
ef416fc2 | 2032 | return (PAM_CONV_ERR); |
2033 | ||
2034 | /* | |
2035 | * Answer all of the messages... | |
2036 | */ | |
2037 | ||
ef416fc2 | 2038 | data = (cupsd_authdata_t *)appdata_ptr; |
ef416fc2 | 2039 | |
2040 | for (i = 0; i < num_msg; i ++) | |
2041 | { | |
ef416fc2 | 2042 | switch (msg[i]->msg_style) |
2043 | { | |
2044 | case PAM_PROMPT_ECHO_ON: | |
ef416fc2 | 2045 | replies[i].resp_retcode = PAM_SUCCESS; |
2046 | replies[i].resp = strdup(data->username); | |
2047 | break; | |
2048 | ||
2049 | case PAM_PROMPT_ECHO_OFF: | |
ef416fc2 | 2050 | replies[i].resp_retcode = PAM_SUCCESS; |
2051 | replies[i].resp = strdup(data->password); | |
2052 | break; | |
2053 | ||
2054 | case PAM_TEXT_INFO: | |
ef416fc2 | 2055 | replies[i].resp_retcode = PAM_SUCCESS; |
2056 | replies[i].resp = NULL; | |
2057 | break; | |
2058 | ||
2059 | case PAM_ERROR_MSG: | |
ef416fc2 | 2060 | replies[i].resp_retcode = PAM_SUCCESS; |
2061 | replies[i].resp = NULL; | |
2062 | break; | |
2063 | ||
2064 | default: | |
ef416fc2 | 2065 | free(replies); |
2066 | return (PAM_CONV_ERR); | |
2067 | } | |
2068 | } | |
2069 | ||
2070 | /* | |
2071 | * Return the responses back to PAM... | |
2072 | */ | |
2073 | ||
2074 | *resp = replies; | |
2075 | ||
2076 | return (PAM_SUCCESS); | |
2077 | } | |
5a1d7a17 | 2078 | #else |
ef416fc2 | 2079 | |
2080 | ||
2081 | /* | |
2082 | * 'to64()' - Base64-encode an integer value... | |
2083 | */ | |
2084 | ||
2085 | static void | |
2086 | to64(char *s, /* O - Output string */ | |
2087 | unsigned long v, /* I - Value to encode */ | |
2088 | int n) /* I - Number of digits */ | |
2089 | { | |
2090 | const char *itoa64 = "./0123456789" | |
2091 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
2092 | "abcdefghijklmnopqrstuvwxyz"; | |
2093 | ||
2094 | ||
2095 | for (; n > 0; n --, v >>= 6) | |
2096 | *s++ = itoa64[v & 0x3f]; | |
2097 | } | |
2098 | #endif /* HAVE_LIBPAM */ |