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Commit | Line | Data |
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b423cd4c | 1 | /* |
5ec1fd3d | 2 | * Authorization routines for the CUPS scheduler. |
ef416fc2 | 3 | * |
fa26ab95 | 4 | * Copyright © 2007-2019 by Apple Inc. |
3cd7b5e0 | 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> | |
f7deaa1a | 38 | #endif /* HAVE_AUTHORIZATION_H */ |
db1f069b MS |
39 | #ifdef HAVE_SYS_PARAM_H |
40 | # include <sys/param.h> | |
41 | #endif /* HAVE_SYS_PARAM_H */ | |
bc44d920 | 42 | #ifdef HAVE_SYS_UCRED_H |
43 | # include <sys/ucred.h> | |
44 | typedef struct xucred cupsd_ucred_t; | |
45 | # define CUPSD_UCRED_UID(c) (c).cr_uid | |
46 | #else | |
5a9febac | 47 | # ifndef __OpenBSD__ |
bc44d920 | 48 | typedef struct ucred cupsd_ucred_t; |
5a9febac MS |
49 | # else |
50 | typedef struct sockpeercred cupsd_ucred_t; | |
51 | # endif | |
bc44d920 | 52 | # define CUPSD_UCRED_UID(c) (c).uid |
53 | #endif /* HAVE_SYS_UCRED_H */ | |
ef416fc2 | 54 | |
55 | ||
56 | /* | |
57 | * Local functions... | |
58 | */ | |
59 | ||
f7deaa1a | 60 | #ifdef HAVE_AUTHORIZATION_H |
61 | static int check_authref(cupsd_client_t *con, const char *right); | |
62 | #endif /* HAVE_AUTHORIZATION_H */ | |
bd7854cb | 63 | static int compare_locations(cupsd_location_t *a, |
64 | cupsd_location_t *b); | |
10d09e33 | 65 | static cupsd_authmask_t *copy_authmask(cupsd_authmask_t *am, void *data); |
10d09e33 | 66 | static void free_authmask(cupsd_authmask_t *am, void *data); |
ef416fc2 | 67 | #if HAVE_LIBPAM |
68 | static int pam_func(int, const struct pam_message **, | |
69 | struct pam_response **, void *); | |
5a1d7a17 | 70 | #else |
ef416fc2 | 71 | static void to64(char *s, unsigned long v, int n); |
72 | #endif /* HAVE_LIBPAM */ | |
73 | ||
74 | ||
75 | /* | |
76 | * Local structures... | |
77 | */ | |
78 | ||
79 | #if HAVE_LIBPAM | |
80 | typedef struct cupsd_authdata_s /**** Authentication data ****/ | |
81 | { | |
3e7fe0ca MS |
82 | char username[HTTP_MAX_VALUE], /* Username string */ |
83 | password[HTTP_MAX_VALUE]; /* Password string */ | |
ef416fc2 | 84 | } cupsd_authdata_t; |
85 | #endif /* HAVE_LIBPAM */ | |
86 | ||
87 | ||
ef416fc2 | 88 | /* |
10d09e33 | 89 | * 'cupsdAddIPMask()' - Add an IP address authorization mask. |
ef416fc2 | 90 | */ |
91 | ||
10d09e33 MS |
92 | int /* O - 1 on success, 0 on failure */ |
93 | cupsdAddIPMask( | |
94 | cups_array_t **masks, /* IO - Masks array (created as needed) */ | |
95 | const unsigned address[4], /* I - IP address */ | |
96 | const unsigned netmask[4]) /* I - IP netmask */ | |
ef416fc2 | 97 | { |
10d09e33 | 98 | cupsd_authmask_t temp; /* New host/domain mask */ |
ef416fc2 | 99 | |
100 | ||
ffe32673 | 101 | 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 | 102 | |
10d09e33 MS |
103 | temp.type = CUPSD_AUTH_IP; |
104 | memcpy(temp.mask.ip.address, address, sizeof(temp.mask.ip.address)); | |
105 | memcpy(temp.mask.ip.netmask, netmask, sizeof(temp.mask.ip.netmask)); | |
ef416fc2 | 106 | |
bd7854cb | 107 | /* |
10d09e33 | 108 | * Create the masks array as needed and add... |
bd7854cb | 109 | */ |
110 | ||
10d09e33 MS |
111 | if (!*masks) |
112 | *masks = cupsArrayNew3(NULL, NULL, NULL, 0, | |
113 | (cups_acopy_func_t)copy_authmask, | |
114 | (cups_afree_func_t)free_authmask); | |
ef416fc2 | 115 | |
10d09e33 MS |
116 | return (cupsArrayAdd(*masks, &temp)); |
117 | } | |
ef416fc2 | 118 | |
bd7854cb | 119 | |
10d09e33 MS |
120 | /* |
121 | * 'cupsdAddLocation()' - Add a location for authorization. | |
122 | */ | |
ef416fc2 | 123 | |
10d09e33 MS |
124 | void |
125 | cupsdAddLocation(cupsd_location_t *loc) /* I - Location to add */ | |
126 | { | |
ef416fc2 | 127 | /* |
10d09e33 | 128 | * Make sure the locations array is created... |
ef416fc2 | 129 | */ |
130 | ||
10d09e33 MS |
131 | if (!Locations) |
132 | Locations = cupsArrayNew3((cups_array_func_t)compare_locations, NULL, | |
133 | (cups_ahash_func_t)NULL, 0, | |
134 | (cups_acopy_func_t)NULL, | |
135 | (cups_afree_func_t)cupsdFreeLocation); | |
136 | ||
137 | if (Locations) | |
138 | { | |
139 | cupsArrayAdd(Locations, loc); | |
140 | ||
ffe32673 | 141 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddLocation: Added location \"%s\"", loc->location ? loc->location : "(null)"); |
10d09e33 | 142 | } |
ef416fc2 | 143 | } |
144 | ||
145 | ||
146 | /* | |
147 | * 'cupsdAddName()' - Add a name to a location... | |
148 | */ | |
149 | ||
150 | void | |
151 | cupsdAddName(cupsd_location_t *loc, /* I - Location to add to */ | |
152 | char *name) /* I - Name to add */ | |
153 | { | |
ffe32673 | 154 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddName(loc=%p, name=\"%s\")", loc, name); |
ef416fc2 | 155 | |
10d09e33 MS |
156 | if (!loc->names) |
157 | loc->names = cupsArrayNew3(NULL, NULL, NULL, 0, | |
158 | (cups_acopy_func_t)_cupsStrAlloc, | |
159 | (cups_afree_func_t)_cupsStrFree); | |
ef416fc2 | 160 | |
10d09e33 | 161 | if (!cupsArrayAdd(loc->names, name)) |
ef416fc2 | 162 | { |
163 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
164 | "Unable to duplicate name for location %s: %s", | |
e1d6a774 | 165 | loc->location ? loc->location : "nil", strerror(errno)); |
ef416fc2 | 166 | return; |
167 | } | |
ef416fc2 | 168 | } |
169 | ||
170 | ||
171 | /* | |
10d09e33 | 172 | * 'cupsdAddNameMask()' - Add a host or interface name authorization mask. |
ef416fc2 | 173 | */ |
174 | ||
10d09e33 MS |
175 | int /* O - 1 on success, 0 on failure */ |
176 | cupsdAddNameMask(cups_array_t **masks, /* IO - Masks array (created as needed) */ | |
177 | char *name) /* I - Host or interface name */ | |
ef416fc2 | 178 | { |
10d09e33 | 179 | cupsd_authmask_t temp; /* New host/domain mask */ |
ef416fc2 | 180 | char ifname[32], /* Interface name */ |
181 | *ifptr; /* Pointer to end of name */ | |
182 | ||
183 | ||
ffe32673 | 184 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddNameMask(masks=%p(%p), name=\"%s\")", masks, *masks, name); |
ef416fc2 | 185 | |
88f9aafc | 186 | if (!_cups_strcasecmp(name, "@LOCAL")) |
ef416fc2 | 187 | { |
188 | /* | |
10d09e33 | 189 | * Deny *interface*... |
ef416fc2 | 190 | */ |
191 | ||
10d09e33 MS |
192 | temp.type = CUPSD_AUTH_INTERFACE; |
193 | temp.mask.name.name = (char *)"*"; | |
ef416fc2 | 194 | } |
88f9aafc | 195 | else if (!_cups_strncasecmp(name, "@IF(", 4)) |
ef416fc2 | 196 | { |
197 | /* | |
10d09e33 | 198 | * Deny *interface*... |
ef416fc2 | 199 | */ |
200 | ||
201 | strlcpy(ifname, name + 4, sizeof(ifname)); | |
202 | ||
10d09e33 | 203 | ifptr = ifname + strlen(ifname) - 1; |
ef416fc2 | 204 | |
10d09e33 | 205 | if (ifptr >= ifname && *ifptr == ')') |
ef416fc2 | 206 | { |
207 | ifptr --; | |
208 | *ifptr = '\0'; | |
209 | } | |
210 | ||
10d09e33 MS |
211 | temp.type = CUPSD_AUTH_INTERFACE; |
212 | temp.mask.name.name = ifname; | |
ef416fc2 | 213 | } |
214 | else | |
215 | { | |
216 | /* | |
10d09e33 | 217 | * Deny name... |
ef416fc2 | 218 | */ |
219 | ||
10d09e33 MS |
220 | if (*name == '*') |
221 | name ++; | |
ef416fc2 | 222 | |
10d09e33 MS |
223 | temp.type = CUPSD_AUTH_NAME; |
224 | temp.mask.name.name = (char *)name; | |
225 | } | |
ef416fc2 | 226 | |
10d09e33 MS |
227 | /* |
228 | * Set the name length... | |
229 | */ | |
ef416fc2 | 230 | |
10d09e33 | 231 | temp.mask.name.length = strlen(temp.mask.name.name); |
ef416fc2 | 232 | |
10d09e33 MS |
233 | /* |
234 | * Create the masks array as needed and add... | |
235 | */ | |
ef416fc2 | 236 | |
10d09e33 MS |
237 | if (!*masks) |
238 | *masks = cupsArrayNew3(NULL, NULL, NULL, 0, | |
239 | (cups_acopy_func_t)copy_authmask, | |
240 | (cups_afree_func_t)free_authmask); | |
ef416fc2 | 241 | |
10d09e33 | 242 | return (cupsArrayAdd(*masks, &temp)); |
ef416fc2 | 243 | } |
244 | ||
245 | ||
246 | /* | |
247 | * 'cupsdAuthorize()' - Validate any authorization credentials. | |
248 | */ | |
249 | ||
250 | void | |
251 | cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */ | |
252 | { | |
253 | int type; /* Authentication type */ | |
f7deaa1a | 254 | const char *authorization; /* Pointer into Authorization string */ |
255 | char *ptr, /* Pointer into string */ | |
3e7fe0ca MS |
256 | username[HTTP_MAX_VALUE], |
257 | /* Username string */ | |
258 | password[HTTP_MAX_VALUE]; | |
259 | /* Password string */ | |
db0bd74a | 260 | cupsd_cert_t *localuser; /* Certificate username */ |
ef416fc2 | 261 | |
262 | ||
263 | /* | |
264 | * Locate the best matching location so we know what kind of | |
265 | * authentication to expect... | |
266 | */ | |
267 | ||
996acce8 | 268 | con->best = cupsdFindBest(con->uri, httpGetState(con->http)); |
5bd77a73 | 269 | con->type = CUPSD_AUTH_NONE; |
ef416fc2 | 270 | |
ffe32673 | 271 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "con->uri=\"%s\", con->best=%p(%s)", con->uri, con->best, con->best ? con->best->location : ""); |
ef416fc2 | 272 | |
5bd77a73 | 273 | if (con->best && con->best->type != CUPSD_AUTH_NONE) |
7ff4fea9 | 274 | { |
5bd77a73 | 275 | if (con->best->type == CUPSD_AUTH_DEFAULT) |
dcb445bc | 276 | type = cupsdDefaultAuthType(); |
7ff4fea9 MS |
277 | else |
278 | type = con->best->type; | |
279 | } | |
ef416fc2 | 280 | else |
dcb445bc | 281 | type = cupsdDefaultAuthType(); |
ef416fc2 | 282 | |
283 | /* | |
284 | * Decode the Authorization string... | |
285 | */ | |
286 | ||
996acce8 | 287 | authorization = httpGetField(con->http, HTTP_FIELD_AUTHORIZATION); |
ef416fc2 | 288 | |
ef416fc2 | 289 | username[0] = '\0'; |
290 | password[0] = '\0'; | |
291 | ||
07ed0e9a MS |
292 | #ifdef HAVE_GSSAPI |
293 | con->gss_uid = 0; | |
294 | #endif /* HAVE_GSSAPI */ | |
295 | ||
f7deaa1a | 296 | #ifdef HAVE_AUTHORIZATION_H |
297 | if (con->authref) | |
298 | { | |
299 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
300 | con->authref = NULL; | |
301 | } | |
302 | #endif /* HAVE_AUTHORIZATION_H */ | |
303 | ||
2fb76298 | 304 | if (!*authorization) |
ef416fc2 | 305 | { |
306 | /* | |
307 | * No authorization data provided, return early... | |
308 | */ | |
309 | ||
ffe32673 | 310 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "No authentication data provided."); |
ef416fc2 | 311 | return; |
312 | } | |
f7deaa1a | 313 | #ifdef HAVE_AUTHORIZATION_H |
c8fef167 | 314 | else if (!strncmp(authorization, "AuthRef ", 8) && |
5ec1fd3d | 315 | httpAddrLocalhost(httpGetAddress(con->http))) |
f7deaa1a | 316 | { |
317 | OSStatus status; /* Status */ | |
e0660879 MS |
318 | char authdata[HTTP_MAX_VALUE]; |
319 | /* Nonce value from client */ | |
f7deaa1a | 320 | int authlen; /* Auth string length */ |
321 | AuthorizationItemSet *authinfo; /* Authorization item set */ | |
322 | ||
323 | /* | |
324 | * Get the Authorization Services data... | |
325 | */ | |
326 | ||
c8fef167 | 327 | authorization += 8; |
f7deaa1a | 328 | while (isspace(*authorization & 255)) |
329 | authorization ++; | |
330 | ||
e0660879 MS |
331 | authlen = sizeof(authdata); |
332 | httpDecode64_2(authdata, &authlen, authorization); | |
f7deaa1a | 333 | |
334 | if (authlen != kAuthorizationExternalFormLength) | |
335 | { | |
ffe32673 | 336 | cupsdLogClient(con, CUPSD_LOG_ERROR, "External Authorization reference size is incorrect."); |
f7deaa1a | 337 | return; |
338 | } | |
339 | ||
e0660879 | 340 | if ((status = AuthorizationCreateFromExternalForm((AuthorizationExternalForm *)authdata, &con->authref)) != 0) |
f7deaa1a | 341 | { |
fa26ab95 | 342 | cupsdLogClient(con, CUPSD_LOG_ERROR, "AuthorizationCreateFromExternalForm returned %d", (int)status); |
f7deaa1a | 343 | return; |
344 | } | |
345 | ||
c8fef167 | 346 | username[0] = '\0'; |
ed6e7faf | 347 | |
c8fef167 | 348 | if (!AuthorizationCopyInfo(con->authref, kAuthorizationEnvironmentUsername, |
bf3816c7 | 349 | &authinfo)) |
e4572d57 | 350 | { |
ed6e7faf MS |
351 | if (authinfo->count == 1 && authinfo->items[0].value && |
352 | authinfo->items[0].valueLength >= 2) | |
c8fef167 | 353 | { |
ed6e7faf MS |
354 | strlcpy(username, authinfo->items[0].value, sizeof(username)); |
355 | ||
ffe32673 | 356 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using AuthRef.", username); |
c8fef167 MS |
357 | } |
358 | ||
e4572d57 | 359 | AuthorizationFreeItemSet(authinfo); |
e4572d57 | 360 | } |
355e94dc | 361 | |
c8fef167 MS |
362 | if (!username[0]) |
363 | { | |
364 | /* | |
365 | * No username in AuthRef, grab username using peer credentials... | |
366 | */ | |
367 | ||
368 | struct passwd *pwd; /* Password entry for this user */ | |
369 | cupsd_ucred_t peercred; /* Peer credentials */ | |
370 | socklen_t peersize; /* Size of peer credentials */ | |
371 | ||
372 | peersize = sizeof(peercred); | |
373 | ||
996acce8 | 374 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
c8fef167 | 375 | { |
ffe32673 | 376 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
c8fef167 MS |
377 | return; |
378 | } | |
379 | ||
380 | if ((pwd = getpwuid(CUPSD_UCRED_UID(peercred))) == NULL) | |
381 | { | |
ffe32673 | 382 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to find UID %d for peer credentials.", (int)CUPSD_UCRED_UID(peercred)); |
c8fef167 MS |
383 | return; |
384 | } | |
385 | ||
386 | strlcpy(username, pwd->pw_name, sizeof(username)); | |
387 | ||
ffe32673 | 388 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using AuthRef + PeerCred.", username); |
c8fef167 MS |
389 | } |
390 | ||
5bd77a73 | 391 | con->type = CUPSD_AUTH_BASIC; |
f7deaa1a | 392 | } |
393 | #endif /* HAVE_AUTHORIZATION_H */ | |
bc44d920 | 394 | #if defined(SO_PEERCRED) && defined(AF_LOCAL) |
395 | else if (!strncmp(authorization, "PeerCred ", 9) && | |
0d40cb1e | 396 | con->http->hostaddr->addr.sa_family == AF_LOCAL && con->best) |
bc44d920 | 397 | { |
398 | /* | |
399 | * Use peer credentials from domain socket connection... | |
400 | */ | |
401 | ||
402 | struct passwd *pwd; /* Password entry for this user */ | |
403 | cupsd_ucred_t peercred; /* Peer credentials */ | |
404 | socklen_t peersize; /* Size of peer credentials */ | |
f14324a7 MS |
405 | #ifdef HAVE_AUTHORIZATION_H |
406 | const char *name; /* Authorizing name */ | |
6961465f MS |
407 | int no_peer = 0; /* Don't allow peer credentials? */ |
408 | ||
409 | /* | |
410 | * See if we should allow peer credentials... | |
411 | */ | |
bc44d920 | 412 | |
f14324a7 MS |
413 | for (name = (char *)cupsArrayFirst(con->best->names); |
414 | name; | |
415 | name = (char *)cupsArrayNext(con->best->names)) | |
6961465f | 416 | { |
dcb445bc MS |
417 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) || |
418 | !_cups_strcasecmp(name, "@SYSTEM")) | |
f14324a7 | 419 | { |
6961465f MS |
420 | /* Normally don't want peer credentials if we need an auth key... */ |
421 | no_peer = 1; | |
422 | } | |
423 | else if (!_cups_strcasecmp(name, "@OWNER")) | |
424 | { | |
425 | /* but if @OWNER is present then we allow it... */ | |
426 | no_peer = 0; | |
427 | break; | |
f14324a7 | 428 | } |
6961465f MS |
429 | } |
430 | ||
431 | if (no_peer) | |
432 | { | |
ffe32673 | 433 | cupsdLogClient(con, CUPSD_LOG_ERROR, "PeerCred authentication not allowed for resource per AUTHKEY policy."); |
6961465f MS |
434 | return; |
435 | } | |
f14324a7 | 436 | #endif /* HAVE_AUTHORIZATION_H */ |
bc44d920 | 437 | |
438 | if ((pwd = getpwnam(authorization + 9)) == NULL) | |
439 | { | |
ffe32673 | 440 | cupsdLogClient(con, CUPSD_LOG_ERROR, "User \"%s\" does not exist.", authorization + 9); |
bc44d920 | 441 | return; |
442 | } | |
443 | ||
444 | peersize = sizeof(peercred); | |
445 | ||
f11a948a | 446 | # ifdef __APPLE__ |
996acce8 | 447 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
f11a948a | 448 | # else |
996acce8 | 449 | if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, &peersize)) |
f11a948a | 450 | # endif /* __APPLE__ */ |
bc44d920 | 451 | { |
ffe32673 | 452 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
bc44d920 | 453 | return; |
454 | } | |
455 | ||
456 | if (pwd->pw_uid != CUPSD_UCRED_UID(peercred)) | |
457 | { | |
ffe32673 | 458 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Invalid peer credentials for \"%s\" - got %d, expected %d.", authorization + 9, CUPSD_UCRED_UID(peercred), pwd->pw_uid); |
bc44d920 | 459 | # ifdef HAVE_SYS_UCRED_H |
ffe32673 MS |
460 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_version=%d", peercred.cr_version); |
461 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_uid=%d", peercred.cr_uid); | |
462 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_ngroups=%d", peercred.cr_ngroups); | |
463 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_groups[0]=%d", peercred.cr_groups[0]); | |
bc44d920 | 464 | # endif /* HAVE_SYS_UCRED_H */ |
465 | return; | |
466 | } | |
467 | ||
468 | strlcpy(username, authorization + 9, sizeof(username)); | |
355e94dc | 469 | |
eac3a0a0 MS |
470 | # ifdef HAVE_GSSAPI |
471 | con->gss_uid = CUPSD_UCRED_UID(peercred); | |
472 | # endif /* HAVE_GSSAPI */ | |
473 | ||
ffe32673 | 474 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as %s using PeerCred.", username); |
2fb76298 | 475 | |
5bd77a73 | 476 | con->type = CUPSD_AUTH_BASIC; |
bc44d920 | 477 | } |
478 | #endif /* SO_PEERCRED && AF_LOCAL */ | |
ef416fc2 | 479 | else if (!strncmp(authorization, "Local", 5) && |
5ec1fd3d | 480 | httpAddrLocalhost(httpGetAddress(con->http))) |
ef416fc2 | 481 | { |
482 | /* | |
483 | * Get Local certificate authentication data... | |
484 | */ | |
485 | ||
486 | authorization += 5; | |
80ca4592 | 487 | while (isspace(*authorization & 255)) |
ef416fc2 | 488 | authorization ++; |
489 | ||
0fa6c7fa | 490 | if ((localuser = cupsdFindCert(authorization)) == NULL) |
ef416fc2 | 491 | { |
ffe32673 | 492 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Local authentication certificate not found."); |
ef416fc2 | 493 | return; |
494 | } | |
2fb76298 | 495 | |
0fa6c7fa MS |
496 | strlcpy(username, localuser->username, sizeof(username)); |
497 | con->type = localuser->type; | |
498 | ||
ffe32673 | 499 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as %s using Local.", username); |
ef416fc2 | 500 | } |
2fb76298 | 501 | else if (!strncmp(authorization, "Basic", 5)) |
ef416fc2 | 502 | { |
503 | /* | |
504 | * Get the Basic authentication data... | |
505 | */ | |
506 | ||
507 | int userlen; /* Username:password length */ | |
508 | ||
509 | ||
510 | authorization += 5; | |
80ca4592 | 511 | while (isspace(*authorization & 255)) |
ef416fc2 | 512 | authorization ++; |
513 | ||
514 | userlen = sizeof(username); | |
515 | httpDecode64_2(username, &userlen, authorization); | |
516 | ||
517 | /* | |
518 | * Pull the username and password out... | |
519 | */ | |
520 | ||
521 | if ((ptr = strchr(username, ':')) == NULL) | |
522 | { | |
ffe32673 | 523 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Missing Basic password."); |
ef416fc2 | 524 | return; |
525 | } | |
526 | ||
527 | *ptr++ = '\0'; | |
528 | ||
529 | if (!username[0]) | |
530 | { | |
531 | /* | |
532 | * Username must not be empty... | |
533 | */ | |
534 | ||
ffe32673 | 535 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Empty Basic username."); |
ef416fc2 | 536 | return; |
537 | } | |
538 | ||
539 | if (!*ptr) | |
540 | { | |
541 | /* | |
542 | * Password must not be empty... | |
543 | */ | |
544 | ||
ffe32673 | 545 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Empty Basic password."); |
ef416fc2 | 546 | return; |
547 | } | |
548 | ||
549 | strlcpy(password, ptr, sizeof(password)); | |
550 | ||
551 | /* | |
552 | * Validate the username and password... | |
553 | */ | |
554 | ||
555 | switch (type) | |
556 | { | |
2fb76298 | 557 | default : |
5bd77a73 | 558 | case CUPSD_AUTH_BASIC : |
ef416fc2 | 559 | { |
560 | #if HAVE_LIBPAM | |
561 | /* | |
562 | * Only use PAM to do authentication. This supports MD5 | |
563 | * passwords, among other things... | |
564 | */ | |
565 | ||
566 | pam_handle_t *pamh; /* PAM authentication handle */ | |
567 | int pamerr; /* PAM error code */ | |
568 | struct pam_conv pamdata;/* PAM conversation data */ | |
569 | cupsd_authdata_t data; /* Authentication data */ | |
570 | ||
571 | ||
572 | strlcpy(data.username, username, sizeof(data.username)); | |
573 | strlcpy(data.password, password, sizeof(data.password)); | |
574 | ||
5a1d7a17 | 575 | # ifdef __sun |
e1d6a774 | 576 | pamdata.conv = (int (*)(int, struct pam_message **, |
577 | struct pam_response **, | |
578 | void *))pam_func; | |
579 | # else | |
ef416fc2 | 580 | pamdata.conv = pam_func; |
5a1d7a17 | 581 | # endif /* __sun */ |
ef416fc2 | 582 | pamdata.appdata_ptr = &data; |
583 | ||
ef416fc2 | 584 | pamerr = pam_start("cups", username, &pamdata, &pamh); |
585 | if (pamerr != PAM_SUCCESS) | |
586 | { | |
ffe32673 | 587 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_start() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 588 | return; |
589 | } | |
590 | ||
ee571f26 MS |
591 | # ifdef HAVE_PAM_SET_ITEM |
592 | # ifdef PAM_RHOST | |
996acce8 | 593 | pamerr = pam_set_item(pamh, PAM_RHOST, con->http->hostname); |
a4924f6c | 594 | if (pamerr != PAM_SUCCESS) |
ffe32673 | 595 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_set_item(PAM_RHOST) returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ee571f26 MS |
596 | # endif /* PAM_RHOST */ |
597 | ||
598 | # ifdef PAM_TTY | |
599 | pamerr = pam_set_item(pamh, PAM_TTY, "cups"); | |
600 | if (pamerr != PAM_SUCCESS) | |
ffe32673 | 601 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_set_item(PAM_TTY) returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ee571f26 MS |
602 | # endif /* PAM_TTY */ |
603 | # endif /* HAVE_PAM_SET_ITEM */ | |
604 | ||
ef416fc2 | 605 | pamerr = pam_authenticate(pamh, PAM_SILENT); |
606 | if (pamerr != PAM_SUCCESS) | |
607 | { | |
ffe32673 | 608 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_authenticate() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 609 | pam_end(pamh, 0); |
610 | return; | |
611 | } | |
612 | ||
94da7e34 MS |
613 | # ifdef HAVE_PAM_SETCRED |
614 | pamerr = pam_setcred(pamh, PAM_ESTABLISH_CRED | PAM_SILENT); | |
615 | if (pamerr != PAM_SUCCESS) | |
ffe32673 | 616 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_setcred() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
94da7e34 MS |
617 | # endif /* HAVE_PAM_SETCRED */ |
618 | ||
ef416fc2 | 619 | pamerr = pam_acct_mgmt(pamh, PAM_SILENT); |
620 | if (pamerr != PAM_SUCCESS) | |
621 | { | |
ffe32673 | 622 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_acct_mgmt() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 623 | pam_end(pamh, 0); |
624 | return; | |
625 | } | |
626 | ||
627 | pam_end(pamh, PAM_SUCCESS); | |
628 | ||
ef416fc2 | 629 | #else |
630 | /* | |
631 | * Use normal UNIX password file-based authentication... | |
632 | */ | |
633 | ||
634 | char *pass; /* Encrypted password */ | |
635 | struct passwd *pw; /* User password data */ | |
636 | # ifdef HAVE_SHADOW_H | |
637 | struct spwd *spw; /* Shadow password data */ | |
638 | # endif /* HAVE_SHADOW_H */ | |
639 | ||
640 | ||
641 | pw = getpwnam(username); /* Get the current password */ | |
642 | endpwent(); /* Close the password file */ | |
643 | ||
644 | if (!pw) | |
645 | { | |
646 | /* | |
647 | * No such user... | |
648 | */ | |
649 | ||
ffe32673 | 650 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unknown username \"%s\".", username); |
80ca4592 | 651 | return; |
ef416fc2 | 652 | } |
653 | ||
654 | # ifdef HAVE_SHADOW_H | |
655 | spw = getspnam(username); | |
656 | endspent(); | |
657 | ||
658 | if (!spw && !strcmp(pw->pw_passwd, "x")) | |
659 | { | |
660 | /* | |
661 | * Don't allow blank passwords! | |
662 | */ | |
663 | ||
ffe32673 | 664 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Username \"%s\" has no shadow password.", username); |
ef416fc2 | 665 | return; |
666 | } | |
667 | ||
668 | if (spw && !spw->sp_pwdp[0] && !pw->pw_passwd[0]) | |
669 | # else | |
670 | if (!pw->pw_passwd[0]) | |
671 | # endif /* HAVE_SHADOW_H */ | |
672 | { | |
673 | /* | |
674 | * Don't allow blank passwords! | |
675 | */ | |
676 | ||
ffe32673 | 677 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Username \"%s\" has no password.", username); |
ef416fc2 | 678 | return; |
679 | } | |
680 | ||
681 | /* | |
682 | * OK, the password isn't blank, so compare with what came from the | |
683 | * client... | |
684 | */ | |
685 | ||
3cd7b5e0 | 686 | pass = crypt(password, pw->pw_passwd); |
ef416fc2 | 687 | |
ef416fc2 | 688 | if (!pass || strcmp(pw->pw_passwd, pass)) |
689 | { | |
690 | # ifdef HAVE_SHADOW_H | |
691 | if (spw) | |
692 | { | |
3cd7b5e0 | 693 | pass = crypt(password, spw->sp_pwdp); |
ef416fc2 | 694 | |
ef416fc2 | 695 | if (pass == NULL || strcmp(spw->sp_pwdp, pass)) |
696 | { | |
ffe32673 | 697 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Authentication failed for user \"%s\".", username); |
ef416fc2 | 698 | return; |
699 | } | |
700 | } | |
701 | else | |
702 | # endif /* HAVE_SHADOW_H */ | |
703 | { | |
ffe32673 | 704 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Authentication failed for user \"%s\".", username); |
ef416fc2 | 705 | return; |
706 | } | |
707 | } | |
708 | #endif /* HAVE_LIBPAM */ | |
709 | } | |
355e94dc | 710 | |
ffe32673 | 711 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using Basic.", username); |
ef416fc2 | 712 | break; |
ef416fc2 | 713 | } |
2fb76298 MS |
714 | |
715 | con->type = type; | |
ef416fc2 | 716 | } |
f7deaa1a | 717 | #ifdef HAVE_GSSAPI |
c8fef167 | 718 | else if (!strncmp(authorization, "Negotiate", 9)) |
f7deaa1a | 719 | { |
720 | int len; /* Length of authorization string */ | |
f7deaa1a | 721 | gss_ctx_id_t context; /* Authorization context */ |
722 | OM_uint32 major_status, /* Major status code */ | |
723 | minor_status; /* Minor status code */ | |
724 | gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER, | |
725 | /* Input token from string */ | |
726 | output_token = GSS_C_EMPTY_BUFFER; | |
727 | /* Output token for username */ | |
728 | gss_name_t client_name; /* Client name */ | |
729 | ||
730 | ||
f42414bf | 731 | # ifdef __APPLE__ |
732 | /* | |
733 | * If the weak-linked GSSAPI/Kerberos library is not present, don't try | |
734 | * to use it... | |
735 | */ | |
736 | ||
d2ff4622 | 737 | if (&gss_init_sec_context == NULL) |
f42414bf | 738 | { |
ffe32673 | 739 | cupsdLogClient(con, CUPSD_LOG_WARN, "GSSAPI/Kerberos authentication failed because the Kerberos framework is not present."); |
f42414bf | 740 | return; |
741 | } | |
742 | # endif /* __APPLE__ */ | |
743 | ||
f7deaa1a | 744 | /* |
745 | * Find the start of the Kerberos input token... | |
746 | */ | |
747 | ||
748 | authorization += 9; | |
749 | while (isspace(*authorization & 255)) | |
750 | authorization ++; | |
751 | ||
752 | if (!*authorization) | |
753 | { | |
ffe32673 | 754 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "No authentication data specified."); |
f7deaa1a | 755 | return; |
756 | } | |
757 | ||
f7deaa1a | 758 | /* |
759 | * Decode the authorization string to get the input token... | |
760 | */ | |
761 | ||
7e86f2f6 MS |
762 | len = (int)strlen(authorization); |
763 | input_token.value = malloc((size_t)len); | |
f7deaa1a | 764 | input_token.value = httpDecode64_2(input_token.value, &len, |
c7017ecc | 765 | authorization); |
7e86f2f6 | 766 | input_token.length = (size_t)len; |
f7deaa1a | 767 | |
768 | /* | |
769 | * Accept the input token to get the authorization info... | |
770 | */ | |
771 | ||
772 | context = GSS_C_NO_CONTEXT; | |
773 | client_name = GSS_C_NO_NAME; | |
774 | major_status = gss_accept_sec_context(&minor_status, | |
775 | &context, | |
dcb445bc | 776 | ServerCreds, |
f7deaa1a | 777 | &input_token, |
778 | GSS_C_NO_CHANNEL_BINDINGS, | |
779 | &client_name, | |
780 | NULL, | |
07ed0e9a MS |
781 | &output_token, |
782 | NULL, | |
f7deaa1a | 783 | NULL, |
07ed0e9a MS |
784 | NULL); |
785 | ||
786 | if (output_token.length > 0) | |
787 | gss_release_buffer(&minor_status, &output_token); | |
f7deaa1a | 788 | |
789 | if (GSS_ERROR(major_status)) | |
790 | { | |
ffe32673 | 791 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Error accepting GSSAPI security context.", con->number); |
f7deaa1a | 792 | |
793 | if (context != GSS_C_NO_CONTEXT) | |
794 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
f7deaa1a | 795 | return; |
796 | } | |
797 | ||
97c9a8d7 MS |
798 | con->have_gss = 1; |
799 | ||
76cd9e37 MS |
800 | /* |
801 | * Get the username associated with the client's credentials... | |
f7deaa1a | 802 | */ |
803 | ||
355e94dc | 804 | if (major_status == GSS_S_CONTINUE_NEEDED) |
ffe32673 | 805 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Credentials not complete.", con->number); |
355e94dc | 806 | else if (major_status == GSS_S_COMPLETE) |
f7deaa1a | 807 | { |
c8fef167 | 808 | major_status = gss_display_name(&minor_status, client_name, |
f7deaa1a | 809 | &output_token, NULL); |
810 | ||
811 | if (GSS_ERROR(major_status)) | |
812 | { | |
ffe32673 | 813 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Error getting username.", con->number); |
f7deaa1a | 814 | gss_release_name(&minor_status, &client_name); |
815 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
f7deaa1a | 816 | return; |
817 | } | |
818 | ||
f7deaa1a | 819 | strlcpy(username, output_token.value, sizeof(username)); |
355e94dc | 820 | |
ffe32673 | 821 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using Negotiate.", username); |
f7deaa1a | 822 | |
e07d4801 | 823 | gss_release_name(&minor_status, &client_name); |
f7deaa1a | 824 | gss_release_buffer(&minor_status, &output_token); |
2fb76298 | 825 | |
5bd77a73 | 826 | con->type = CUPSD_AUTH_NEGOTIATE; |
f7deaa1a | 827 | } |
e07d4801 MS |
828 | |
829 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
07ed0e9a MS |
830 | |
831 | # if defined(SO_PEERCRED) && defined(AF_LOCAL) | |
832 | /* | |
833 | * Get the client's UID if we are printing locally - that allows a backend | |
834 | * to run as the correct user to get Kerberos credentials of its own. | |
835 | */ | |
836 | ||
5ec1fd3d | 837 | if (httpAddrFamily(con->http->hostaddr) == AF_LOCAL) |
07ed0e9a MS |
838 | { |
839 | cupsd_ucred_t peercred; /* Peer credentials */ | |
840 | socklen_t peersize; /* Size of peer credentials */ | |
841 | ||
842 | peersize = sizeof(peercred); | |
843 | ||
844 | # ifdef __APPLE__ | |
996acce8 | 845 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
07ed0e9a | 846 | # else |
996acce8 | 847 | if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, |
07ed0e9a MS |
848 | &peersize)) |
849 | # endif /* __APPLE__ */ | |
850 | { | |
ffe32673 | 851 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
07ed0e9a MS |
852 | } |
853 | else | |
854 | { | |
ffe32673 | 855 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Using credentials for UID %d.", CUPSD_UCRED_UID(peercred)); |
07ed0e9a MS |
856 | con->gss_uid = CUPSD_UCRED_UID(peercred); |
857 | } | |
858 | } | |
859 | # endif /* SO_PEERCRED && AF_LOCAL */ | |
f7deaa1a | 860 | } |
861 | #endif /* HAVE_GSSAPI */ | |
2fb76298 | 862 | else |
ef416fc2 | 863 | { |
355e94dc | 864 | char scheme[256]; /* Auth scheme... */ |
355e94dc MS |
865 | |
866 | ||
867 | if (sscanf(authorization, "%255s", scheme) != 1) | |
5a9febac | 868 | strlcpy(scheme, "UNKNOWN", sizeof(scheme)); |
355e94dc | 869 | |
ffe32673 | 870 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Bad authentication data \"%s ...\".", scheme); |
ef416fc2 | 871 | return; |
872 | } | |
873 | ||
874 | /* | |
875 | * If we get here, then we were able to validate the username and | |
876 | * password - copy the validated username and password to the client | |
877 | * data and return... | |
878 | */ | |
879 | ||
880 | strlcpy(con->username, username, sizeof(con->username)); | |
881 | strlcpy(con->password, password, sizeof(con->password)); | |
ef416fc2 | 882 | } |
883 | ||
884 | ||
080811b1 MS |
885 | /* |
886 | * 'cupsdCheckAccess()' - Check whether the given address is allowed to | |
887 | * access a location. | |
888 | */ | |
889 | ||
890 | int /* O - 1 if allowed, 0 otherwise */ | |
891 | cupsdCheckAccess( | |
892 | unsigned ip[4], /* I - Client address */ | |
5ec1fd3d | 893 | const char *name, /* I - Client hostname */ |
7e86f2f6 | 894 | size_t namelen, /* I - Length of hostname */ |
080811b1 MS |
895 | cupsd_location_t *loc) /* I - Location to check */ |
896 | { | |
897 | int allow; /* 1 if allowed, 0 otherwise */ | |
898 | ||
899 | ||
88f9aafc | 900 | if (!_cups_strcasecmp(name, "localhost")) |
080811b1 MS |
901 | { |
902 | /* | |
903 | * Access from localhost (127.0.0.1 or ::1) is always allowed... | |
904 | */ | |
905 | ||
906 | return (1); | |
907 | } | |
908 | else | |
909 | { | |
910 | /* | |
911 | * Do authorization checks on the domain/address... | |
912 | */ | |
913 | ||
914 | switch (loc->order_type) | |
915 | { | |
916 | default : | |
917 | allow = 0; /* anti-compiler-warning-code */ | |
918 | break; | |
919 | ||
5bd77a73 | 920 | case CUPSD_AUTH_ALLOW : /* Order Deny,Allow */ |
080811b1 MS |
921 | allow = 1; |
922 | ||
10d09e33 | 923 | if (cupsdCheckAuth(ip, name, namelen, loc->deny)) |
080811b1 MS |
924 | allow = 0; |
925 | ||
10d09e33 | 926 | if (cupsdCheckAuth(ip, name, namelen, loc->allow)) |
080811b1 MS |
927 | allow = 1; |
928 | break; | |
929 | ||
5bd77a73 | 930 | case CUPSD_AUTH_DENY : /* Order Allow,Deny */ |
080811b1 MS |
931 | allow = 0; |
932 | ||
10d09e33 | 933 | if (cupsdCheckAuth(ip, name, namelen, loc->allow)) |
080811b1 MS |
934 | allow = 1; |
935 | ||
10d09e33 | 936 | if (cupsdCheckAuth(ip, name, namelen, loc->deny)) |
080811b1 MS |
937 | allow = 0; |
938 | break; | |
939 | } | |
940 | } | |
941 | ||
942 | return (allow); | |
943 | } | |
944 | ||
945 | ||
ef416fc2 | 946 | /* |
947 | * 'cupsdCheckAuth()' - Check authorization masks. | |
948 | */ | |
949 | ||
950 | int /* O - 1 if mask matches, 0 otherwise */ | |
10d09e33 | 951 | cupsdCheckAuth(unsigned ip[4], /* I - Client address */ |
5ec1fd3d | 952 | const char *name, /* I - Client hostname */ |
7e86f2f6 | 953 | size_t name_len, /* I - Length of hostname */ |
10d09e33 | 954 | cups_array_t *masks) /* I - Masks */ |
ef416fc2 | 955 | { |
10d09e33 MS |
956 | int i; /* Looping var */ |
957 | cupsd_authmask_t *mask; /* Current mask */ | |
958 | cupsd_netif_t *iface; /* Network interface */ | |
959 | unsigned netip4; /* IPv4 network address */ | |
ef416fc2 | 960 | #ifdef AF_INET6 |
10d09e33 | 961 | unsigned netip6[4]; /* IPv6 network address */ |
ef416fc2 | 962 | #endif /* AF_INET6 */ |
963 | ||
e07d4801 | 964 | |
10d09e33 MS |
965 | for (mask = (cupsd_authmask_t *)cupsArrayFirst(masks); |
966 | mask; | |
967 | mask = (cupsd_authmask_t *)cupsArrayNext(masks)) | |
ef416fc2 | 968 | { |
10d09e33 | 969 | switch (mask->type) |
ef416fc2 | 970 | { |
5bd77a73 | 971 | case CUPSD_AUTH_INTERFACE : |
ef416fc2 | 972 | /* |
973 | * Check for a match with a network interface... | |
974 | */ | |
975 | ||
976 | netip4 = htonl(ip[3]); | |
977 | ||
978 | #ifdef AF_INET6 | |
979 | netip6[0] = htonl(ip[0]); | |
980 | netip6[1] = htonl(ip[1]); | |
981 | netip6[2] = htonl(ip[2]); | |
982 | netip6[3] = htonl(ip[3]); | |
983 | #endif /* AF_INET6 */ | |
984 | ||
84ec3a84 MS |
985 | cupsdNetIFUpdate(); |
986 | ||
10d09e33 | 987 | if (!strcmp(mask->mask.name.name, "*")) |
ef416fc2 | 988 | { |
e07d4801 MS |
989 | #ifdef __APPLE__ |
990 | /* | |
991 | * Allow Back-to-My-Mac addresses... | |
992 | */ | |
993 | ||
994 | if ((ip[0] & 0xff000000) == 0xfd000000) | |
995 | return (1); | |
996 | #endif /* __APPLE__ */ | |
997 | ||
ef416fc2 | 998 | /* |
999 | * Check against all local interfaces... | |
1000 | */ | |
1001 | ||
e00b005a | 1002 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
1003 | iface; | |
1004 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) | |
ef416fc2 | 1005 | { |
1006 | /* | |
1007 | * Only check local interfaces... | |
1008 | */ | |
1009 | ||
1010 | if (!iface->is_local) | |
1011 | continue; | |
1012 | ||
1013 | if (iface->address.addr.sa_family == AF_INET) | |
1014 | { | |
1015 | /* | |
1016 | * Check IPv4 address... | |
1017 | */ | |
1018 | ||
1019 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1020 | (iface->address.ipv4.sin_addr.s_addr & | |
1021 | iface->mask.ipv4.sin_addr.s_addr)) | |
1022 | return (1); | |
1023 | } | |
1024 | #ifdef AF_INET6 | |
1025 | else | |
1026 | { | |
1027 | /* | |
1028 | * Check IPv6 address... | |
1029 | */ | |
1030 | ||
1031 | for (i = 0; i < 4; i ++) | |
1032 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1033 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1034 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1035 | break; | |
1036 | ||
1037 | if (i == 4) | |
1038 | return (1); | |
1039 | } | |
1040 | #endif /* AF_INET6 */ | |
1041 | } | |
1042 | } | |
1043 | else | |
1044 | { | |
1045 | /* | |
1046 | * Check the named interface... | |
1047 | */ | |
1048 | ||
e00b005a | 1049 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
ed486911 | 1050 | iface; |
e00b005a | 1051 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) |
ef416fc2 | 1052 | { |
10d09e33 | 1053 | if (strcmp(mask->mask.name.name, iface->name)) |
ed486911 | 1054 | continue; |
1055 | ||
ef416fc2 | 1056 | if (iface->address.addr.sa_family == AF_INET) |
1057 | { | |
1058 | /* | |
1059 | * Check IPv4 address... | |
1060 | */ | |
1061 | ||
1062 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1063 | (iface->address.ipv4.sin_addr.s_addr & | |
1064 | iface->mask.ipv4.sin_addr.s_addr)) | |
1065 | return (1); | |
1066 | } | |
1067 | #ifdef AF_INET6 | |
1068 | else | |
1069 | { | |
1070 | /* | |
1071 | * Check IPv6 address... | |
1072 | */ | |
1073 | ||
1074 | for (i = 0; i < 4; i ++) | |
1075 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1076 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1077 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1078 | break; | |
1079 | ||
1080 | if (i == 4) | |
1081 | return (1); | |
1082 | } | |
1083 | #endif /* AF_INET6 */ | |
1084 | } | |
1085 | } | |
1086 | break; | |
1087 | ||
5bd77a73 | 1088 | case CUPSD_AUTH_NAME : |
ef416fc2 | 1089 | /* |
1090 | * Check for exact name match... | |
1091 | */ | |
1092 | ||
88f9aafc | 1093 | if (!_cups_strcasecmp(name, mask->mask.name.name)) |
ef416fc2 | 1094 | return (1); |
1095 | ||
1096 | /* | |
1097 | * Check for domain match... | |
1098 | */ | |
1099 | ||
10d09e33 MS |
1100 | if (name_len >= mask->mask.name.length && |
1101 | mask->mask.name.name[0] == '.' && | |
88f9aafc | 1102 | !_cups_strcasecmp(name + name_len - mask->mask.name.length, |
10d09e33 | 1103 | mask->mask.name.name)) |
ef416fc2 | 1104 | return (1); |
1105 | break; | |
1106 | ||
5bd77a73 | 1107 | case CUPSD_AUTH_IP : |
ef416fc2 | 1108 | /* |
1109 | * Check for IP/network address match... | |
1110 | */ | |
1111 | ||
1112 | for (i = 0; i < 4; i ++) | |
10d09e33 MS |
1113 | if ((ip[i] & mask->mask.ip.netmask[i]) != |
1114 | mask->mask.ip.address[i]) | |
ef416fc2 | 1115 | break; |
1116 | ||
1117 | if (i == 4) | |
1118 | return (1); | |
1119 | break; | |
1120 | } | |
ef416fc2 | 1121 | } |
1122 | ||
1123 | return (0); | |
1124 | } | |
1125 | ||
1126 | ||
1127 | /* | |
1128 | * 'cupsdCheckGroup()' - Check for a user's group membership. | |
1129 | */ | |
1130 | ||
1131 | int /* O - 1 if user is a member, 0 otherwise */ | |
1132 | cupsdCheckGroup( | |
1133 | const char *username, /* I - User name */ | |
1134 | struct passwd *user, /* I - System user info */ | |
1135 | const char *groupname) /* I - Group name */ | |
1136 | { | |
8922323b | 1137 | int i; /* Looping var */ |
36374693 MS |
1138 | struct group *group; /* Group info */ |
1139 | gid_t groupid; /* ID of named group */ | |
bd7854cb | 1140 | #ifdef HAVE_MBR_UID_TO_UUID |
8922323b MS |
1141 | uuid_t useruuid, /* UUID for username */ |
1142 | groupuuid; /* UUID for groupname */ | |
1143 | int is_member; /* True if user is a member of group */ | |
bd7854cb | 1144 | #endif /* HAVE_MBR_UID_TO_UUID */ |
ef416fc2 | 1145 | |
1146 | ||
ffe32673 | 1147 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdCheckGroup(username=\"%s\", user=%p, groupname=\"%s\")", username, user, groupname); |
ef416fc2 | 1148 | |
1149 | /* | |
1150 | * Validate input... | |
1151 | */ | |
1152 | ||
1153 | if (!username || !groupname) | |
1154 | return (0); | |
1155 | ||
1156 | /* | |
1157 | * Check to see if the user is a member of the named group... | |
1158 | */ | |
1159 | ||
1160 | group = getgrnam(groupname); | |
1161 | endgrent(); | |
1162 | ||
1163 | if (group != NULL) | |
1164 | { | |
1165 | /* | |
1166 | * Group exists, check it... | |
1167 | */ | |
1168 | ||
36374693 MS |
1169 | groupid = group->gr_gid; |
1170 | ||
6eb98aee MS |
1171 | #ifdef HAVE_GETGROUPLIST |
1172 | if (user) | |
1173 | { | |
f093225b | 1174 | int ngroups; /* Number of groups */ |
fdc3c81a MS |
1175 | # ifdef __APPLE__ |
1176 | int groups[2048]; /* Groups that user belongs to */ | |
1177 | # else | |
f093225b | 1178 | gid_t groups[2048]; /* Groups that user belongs to */ |
fdc3c81a | 1179 | # endif /* __APPLE__ */ |
6eb98aee MS |
1180 | |
1181 | ngroups = (int)(sizeof(groups) / sizeof(groups[0])); | |
fdc3c81a MS |
1182 | # ifdef __APPLE__ |
1183 | getgrouplist(username, (int)user->pw_gid, groups, &ngroups); | |
1184 | # else | |
f093225b | 1185 | getgrouplist(username, user->pw_gid, groups, &ngroups); |
fdc3c81a | 1186 | #endif /* __APPLE__ */ |
6eb98aee MS |
1187 | |
1188 | for (i = 0; i < ngroups; i ++) | |
36374693 | 1189 | if ((int)groupid == (int)groups[i]) |
6eb98aee MS |
1190 | return (1); |
1191 | } | |
6eb98aee | 1192 | |
36374693 | 1193 | #else |
ef416fc2 | 1194 | for (i = 0; group->gr_mem[i]; i ++) |
36374693 | 1195 | { |
88f9aafc | 1196 | if (!_cups_strcasecmp(username, group->gr_mem[i])) |
ef416fc2 | 1197 | return (1); |
36374693 MS |
1198 | } |
1199 | #endif /* HAVE_GETGROUPLIST */ | |
ef416fc2 | 1200 | } |
36374693 MS |
1201 | else |
1202 | groupid = (gid_t)-1; | |
ef416fc2 | 1203 | |
1204 | /* | |
1205 | * Group doesn't exist or user not in group list, check the group ID | |
1206 | * against the user's group ID... | |
1207 | */ | |
1208 | ||
36374693 | 1209 | if (user && groupid == user->pw_gid) |
ef416fc2 | 1210 | return (1); |
1211 | ||
bd7854cb | 1212 | #ifdef HAVE_MBR_UID_TO_UUID |
1213 | /* | |
d4874933 | 1214 | * Check group membership through macOS membership API... |
bd7854cb | 1215 | */ |
1216 | ||
dd1abb6b | 1217 | if (user && !mbr_uid_to_uuid(user->pw_uid, useruuid)) |
c9fc04c6 | 1218 | { |
36374693 | 1219 | if (groupid != (gid_t)-1) |
8922323b MS |
1220 | { |
1221 | /* | |
1222 | * Map group name to UUID and check membership... | |
1223 | */ | |
c9fc04c6 | 1224 | |
36374693 | 1225 | if (!mbr_gid_to_uuid(groupid, groupuuid)) |
8922323b MS |
1226 | if (!mbr_check_membership(useruuid, groupuuid, &is_member)) |
1227 | if (is_member) | |
1228 | return (1); | |
1229 | } | |
1230 | else if (groupname[0] == '#') | |
1231 | { | |
1232 | /* | |
1233 | * Use UUID directly and check for equality (user UUID) and | |
1234 | * membership (group UUID)... | |
1235 | */ | |
1236 | ||
1237 | if (!uuid_parse((char *)groupname + 1, groupuuid)) | |
1238 | { | |
1239 | if (!uuid_compare(useruuid, groupuuid)) | |
c9fc04c6 | 1240 | return (1); |
8922323b MS |
1241 | else if (!mbr_check_membership(useruuid, groupuuid, &is_member)) |
1242 | if (is_member) | |
1243 | return (1); | |
1244 | } | |
1245 | ||
1246 | return (0); | |
1247 | } | |
1248 | } | |
1249 | else if (groupname[0] == '#') | |
1250 | return (0); | |
bd7854cb | 1251 | #endif /* HAVE_MBR_UID_TO_UUID */ |
1252 | ||
ef416fc2 | 1253 | /* |
1254 | * If we get this far, then the user isn't part of the named group... | |
1255 | */ | |
1256 | ||
1257 | return (0); | |
1258 | } | |
1259 | ||
1260 | ||
1261 | /* | |
1262 | * 'cupsdCopyLocation()' - Make a copy of a location... | |
1263 | */ | |
1264 | ||
1265 | cupsd_location_t * /* O - New location */ | |
1266 | cupsdCopyLocation( | |
10d09e33 | 1267 | cupsd_location_t *loc) /* I - Original location */ |
ef416fc2 | 1268 | { |
ef416fc2 | 1269 | cupsd_location_t *temp; /* New location */ |
ef416fc2 | 1270 | |
1271 | ||
ef416fc2 | 1272 | /* |
10d09e33 | 1273 | * Make a copy of the original location... |
ef416fc2 | 1274 | */ |
1275 | ||
10d09e33 | 1276 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) |
ef416fc2 | 1277 | return (NULL); |
1278 | ||
ef416fc2 | 1279 | /* |
1280 | * Copy the information from the original location to the new one. | |
1281 | */ | |
1282 | ||
10d09e33 MS |
1283 | if (!loc) |
1284 | return (temp); | |
ef416fc2 | 1285 | |
10d09e33 MS |
1286 | if (loc->location) |
1287 | temp->location = _cupsStrAlloc(loc->location); | |
ef416fc2 | 1288 | |
d2ff4622 | 1289 | temp->length = loc->length; |
10d09e33 MS |
1290 | temp->limit = loc->limit; |
1291 | temp->order_type = loc->order_type; | |
1292 | temp->type = loc->type; | |
1293 | temp->level = loc->level; | |
1294 | temp->satisfy = loc->satisfy; | |
1295 | temp->encryption = loc->encryption; | |
1296 | ||
1297 | if (loc->names) | |
1298 | { | |
1299 | if ((temp->names = cupsArrayDup(loc->names)) == NULL) | |
ef416fc2 | 1300 | { |
1301 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1302 | "Unable to allocate memory for %d names: %s", |
1303 | cupsArrayCount(loc->names), strerror(errno)); | |
bd7854cb | 1304 | |
10d09e33 | 1305 | cupsdFreeLocation(temp); |
ef416fc2 | 1306 | return (NULL); |
1307 | } | |
ef416fc2 | 1308 | } |
1309 | ||
10d09e33 | 1310 | if (loc->allow) |
ef416fc2 | 1311 | { |
1312 | /* | |
1313 | * Copy allow rules... | |
1314 | */ | |
1315 | ||
10d09e33 | 1316 | if ((temp->allow = cupsArrayDup(loc->allow)) == NULL) |
ef416fc2 | 1317 | { |
1318 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1319 | "Unable to allocate memory for %d allow rules: %s", |
1320 | cupsArrayCount(loc->allow), strerror(errno)); | |
1321 | cupsdFreeLocation(temp); | |
ef416fc2 | 1322 | return (NULL); |
1323 | } | |
ef416fc2 | 1324 | } |
1325 | ||
10d09e33 | 1326 | if (loc->deny) |
ef416fc2 | 1327 | { |
1328 | /* | |
1329 | * Copy deny rules... | |
1330 | */ | |
1331 | ||
10d09e33 | 1332 | if ((temp->deny = cupsArrayDup(loc->deny)) == NULL) |
ef416fc2 | 1333 | { |
1334 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1335 | "Unable to allocate memory for %d deny rules: %s", |
1336 | cupsArrayCount(loc->deny), strerror(errno)); | |
1337 | cupsdFreeLocation(temp); | |
ef416fc2 | 1338 | return (NULL); |
1339 | } | |
ef416fc2 | 1340 | } |
1341 | ||
1342 | return (temp); | |
1343 | } | |
1344 | ||
1345 | ||
1346 | /* | |
1347 | * 'cupsdDeleteAllLocations()' - Free all memory used for location authorization. | |
1348 | */ | |
1349 | ||
1350 | void | |
1351 | cupsdDeleteAllLocations(void) | |
1352 | { | |
ef416fc2 | 1353 | /* |
10d09e33 | 1354 | * Free the location array, which will free all of the locations... |
ef416fc2 | 1355 | */ |
1356 | ||
bd7854cb | 1357 | cupsArrayDelete(Locations); |
1358 | Locations = NULL; | |
ef416fc2 | 1359 | } |
1360 | ||
1361 | ||
ef416fc2 | 1362 | /* |
1363 | * 'cupsdFindBest()' - Find the location entry that best matches the resource. | |
1364 | */ | |
1365 | ||
1366 | cupsd_location_t * /* O - Location that matches */ | |
1367 | cupsdFindBest(const char *path, /* I - Resource path */ | |
1368 | http_state_t state) /* I - HTTP state/request */ | |
1369 | { | |
ef416fc2 | 1370 | char uri[HTTP_MAX_URI], |
1371 | /* URI in request... */ | |
1372 | *uriptr; /* Pointer into URI */ | |
1373 | cupsd_location_t *loc, /* Current location */ | |
1374 | *best; /* Best match for location so far */ | |
7e86f2f6 | 1375 | size_t bestlen; /* Length of best match */ |
ef416fc2 | 1376 | int limit; /* Limit field */ |
5bd77a73 | 1377 | static const int limits[] = /* Map http_status_t to CUPSD_AUTH_LIMIT_xyz */ |
ef416fc2 | 1378 | { |
5bd77a73 MS |
1379 | CUPSD_AUTH_LIMIT_ALL, |
1380 | CUPSD_AUTH_LIMIT_OPTIONS, | |
1381 | CUPSD_AUTH_LIMIT_GET, | |
1382 | CUPSD_AUTH_LIMIT_GET, | |
1383 | CUPSD_AUTH_LIMIT_HEAD, | |
1384 | CUPSD_AUTH_LIMIT_POST, | |
1385 | CUPSD_AUTH_LIMIT_POST, | |
1386 | CUPSD_AUTH_LIMIT_POST, | |
1387 | CUPSD_AUTH_LIMIT_PUT, | |
1388 | CUPSD_AUTH_LIMIT_PUT, | |
1389 | CUPSD_AUTH_LIMIT_DELETE, | |
1390 | CUPSD_AUTH_LIMIT_TRACE, | |
1391 | CUPSD_AUTH_LIMIT_ALL, | |
d2ff4622 MS |
1392 | CUPSD_AUTH_LIMIT_ALL, |
1393 | CUPSD_AUTH_LIMIT_ALL, | |
5bd77a73 | 1394 | CUPSD_AUTH_LIMIT_ALL |
ef416fc2 | 1395 | }; |
1396 | ||
1397 | ||
1398 | /* | |
1399 | * First copy the connection URI to a local string so we have drop | |
1400 | * any .ppd extension from the pathname in /printers or /classes | |
1401 | * URIs... | |
1402 | */ | |
1403 | ||
1404 | strlcpy(uri, path, sizeof(uri)); | |
1405 | ||
c26ceab0 MS |
1406 | if ((uriptr = strchr(uri, '?')) != NULL) |
1407 | *uriptr = '\0'; /* Drop trailing query string */ | |
1408 | ||
1409 | if ((uriptr = uri + strlen(uri) - 1) > uri && *uriptr == '/') | |
1410 | *uriptr = '\0'; /* Remove trailing '/' */ | |
1411 | ||
ef416fc2 | 1412 | if (!strncmp(uri, "/printers/", 10) || |
1413 | !strncmp(uri, "/classes/", 9)) | |
1414 | { | |
1415 | /* | |
1416 | * Check if the URI has .ppd on the end... | |
1417 | */ | |
1418 | ||
1419 | uriptr = uri + strlen(uri) - 4; /* len > 4 if we get here... */ | |
1420 | ||
1421 | if (!strcmp(uriptr, ".ppd")) | |
1422 | *uriptr = '\0'; | |
1423 | } | |
1424 | ||
ef416fc2 | 1425 | /* |
1426 | * Loop through the list of locations to find a match... | |
1427 | */ | |
1428 | ||
1429 | limit = limits[state]; | |
1430 | best = NULL; | |
1431 | bestlen = 0; | |
1432 | ||
ffe32673 | 1433 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: uri=\"%s\", limit=%x...", uri, limit); |
d2ff4622 MS |
1434 | |
1435 | ||
bd7854cb | 1436 | for (loc = (cupsd_location_t *)cupsArrayFirst(Locations); |
1437 | loc; | |
1438 | loc = (cupsd_location_t *)cupsArrayNext(Locations)) | |
ef416fc2 | 1439 | { |
d2ff4622 | 1440 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: Location %s(%d) Limit %x", loc->location ? loc->location : "(null)", (int)loc->length, loc->limit); |
ef416fc2 | 1441 | |
1442 | if (!strncmp(uri, "/printers/", 10) || !strncmp(uri, "/classes/", 9)) | |
1443 | { | |
1444 | /* | |
1445 | * Use case-insensitive comparison for queue names... | |
1446 | */ | |
1447 | ||
e1d6a774 | 1448 | if (loc->length > bestlen && loc->location && |
88f9aafc | 1449 | !_cups_strncasecmp(uri, loc->location, loc->length) && |
ef416fc2 | 1450 | loc->location[0] == '/' && |
1451 | (limit & loc->limit) != 0) | |
1452 | { | |
1453 | best = loc; | |
1454 | bestlen = loc->length; | |
1455 | } | |
1456 | } | |
1457 | else | |
1458 | { | |
1459 | /* | |
1460 | * Use case-sensitive comparison for other URIs... | |
1461 | */ | |
1462 | ||
e1d6a774 | 1463 | if (loc->length > bestlen && loc->location && |
ef416fc2 | 1464 | !strncmp(uri, loc->location, loc->length) && |
1465 | loc->location[0] == '/' && | |
1466 | (limit & loc->limit) != 0) | |
1467 | { | |
1468 | best = loc; | |
1469 | bestlen = loc->length; | |
1470 | } | |
1471 | } | |
1472 | } | |
1473 | ||
1474 | /* | |
1475 | * Return the match, if any... | |
1476 | */ | |
1477 | ||
ffe32673 | 1478 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: best=%s", best ? best->location : "NONE"); |
ef416fc2 | 1479 | |
1480 | return (best); | |
1481 | } | |
1482 | ||
1483 | ||
1484 | /* | |
1485 | * 'cupsdFindLocation()' - Find the named location. | |
1486 | */ | |
1487 | ||
1488 | cupsd_location_t * /* O - Location that matches */ | |
1489 | cupsdFindLocation(const char *location) /* I - Connection */ | |
1490 | { | |
bd7854cb | 1491 | cupsd_location_t key; /* Search key */ |
ef416fc2 | 1492 | |
1493 | ||
bd7854cb | 1494 | key.location = (char *)location; |
ef416fc2 | 1495 | |
bd7854cb | 1496 | return ((cupsd_location_t *)cupsArrayFind(Locations, &key)); |
ef416fc2 | 1497 | } |
1498 | ||
1499 | ||
10d09e33 MS |
1500 | /* |
1501 | * 'cupsdFreeLocation()' - Free all memory used by a location. | |
1502 | */ | |
1503 | ||
1504 | void | |
1505 | cupsdFreeLocation(cupsd_location_t *loc)/* I - Location to free */ | |
1506 | { | |
1507 | cupsArrayDelete(loc->names); | |
1508 | cupsArrayDelete(loc->allow); | |
1509 | cupsArrayDelete(loc->deny); | |
1510 | ||
1511 | _cupsStrFree(loc->location); | |
1512 | free(loc); | |
1513 | } | |
1514 | ||
1515 | ||
ef416fc2 | 1516 | /* |
1517 | * 'cupsdIsAuthorized()' - Check to see if the user is authorized... | |
1518 | */ | |
1519 | ||
1520 | http_status_t /* O - HTTP_OK if authorized or error code */ | |
1521 | cupsdIsAuthorized(cupsd_client_t *con, /* I - Connection */ | |
1522 | const char *owner)/* I - Owner of object */ | |
1523 | { | |
10d09e33 | 1524 | int i, /* Looping vars */ |
2fb76298 MS |
1525 | auth, /* Authorization status */ |
1526 | type; /* Type of authentication */ | |
5ec1fd3d MS |
1527 | http_addr_t *hostaddr = httpGetAddress(con->http); |
1528 | /* Client address */ | |
1529 | const char *hostname = httpGetHostname(con->http, NULL, 0); | |
1530 | /* Client hostname */ | |
ef416fc2 | 1531 | unsigned address[4]; /* Authorization address */ |
1532 | cupsd_location_t *best; /* Best match for location so far */ | |
7e86f2f6 | 1533 | size_t hostlen; /* Length of hostname */ |
10d09e33 MS |
1534 | char *name, /* Current username */ |
1535 | username[256], /* Username to authorize */ | |
db1f069b MS |
1536 | ownername[256], /* Owner name to authorize */ |
1537 | *ptr; /* Pointer into username */ | |
ef416fc2 | 1538 | struct passwd *pw; /* User password data */ |
1539 | static const char * const levels[] = /* Auth levels */ | |
1540 | { | |
1541 | "ANON", | |
1542 | "USER", | |
1543 | "GROUP" | |
1544 | }; | |
1545 | static const char * const types[] = /* Auth types */ | |
1546 | { | |
2fb76298 MS |
1547 | "None", |
1548 | "Basic", | |
2fb76298 | 1549 | "Negotiate" |
ef416fc2 | 1550 | }; |
1551 | ||
1552 | ||
ffe32673 | 1553 | 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 | 1554 | if (owner) |
ffe32673 | 1555 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: owner=\"%s\"", owner); |
ef416fc2 | 1556 | |
1557 | /* | |
1558 | * If there is no "best" authentication rule for this request, then | |
1559 | * access is allowed from the local system and denied from other | |
1560 | * addresses... | |
1561 | */ | |
1562 | ||
1563 | if (!con->best) | |
1564 | { | |
5ec1fd3d MS |
1565 | if (httpAddrLocalhost(httpGetAddress(con->http)) || |
1566 | !strcmp(hostname, ServerName) || | |
1567 | cupsArrayFind(ServerAlias, (void *)hostname)) | |
ef416fc2 | 1568 | return (HTTP_OK); |
1569 | else | |
1570 | return (HTTP_FORBIDDEN); | |
1571 | } | |
1572 | ||
1573 | best = con->best; | |
1574 | ||
5bd77a73 | 1575 | if ((type = best->type) == CUPSD_AUTH_DEFAULT) |
dcb445bc | 1576 | type = cupsdDefaultAuthType(); |
2fb76298 | 1577 | |
ffe32673 | 1578 | 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 | 1579 | |
5bd77a73 | 1580 | if (best->limit == CUPSD_AUTH_LIMIT_IPP) |
ffe32673 | 1581 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: op=%x(%s)", best->op, ippOpString(best->op)); |
ef416fc2 | 1582 | |
1583 | /* | |
1584 | * Check host/ip-based accesses... | |
1585 | */ | |
1586 | ||
1587 | #ifdef AF_INET6 | |
5ec1fd3d | 1588 | if (httpAddrFamily(hostaddr) == AF_INET6) |
ef416fc2 | 1589 | { |
1590 | /* | |
1591 | * Copy IPv6 address... | |
1592 | */ | |
1593 | ||
5ec1fd3d MS |
1594 | address[0] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[0]); |
1595 | address[1] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[1]); | |
1596 | address[2] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[2]); | |
1597 | address[3] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[3]); | |
ef416fc2 | 1598 | } |
1599 | else | |
1600 | #endif /* AF_INET6 */ | |
996acce8 | 1601 | if (con->http->hostaddr->addr.sa_family == AF_INET) |
ef416fc2 | 1602 | { |
1603 | /* | |
1604 | * Copy IPv4 address... | |
1605 | */ | |
1606 | ||
1607 | address[0] = 0; | |
1608 | address[1] = 0; | |
1609 | address[2] = 0; | |
5ec1fd3d | 1610 | address[3] = ntohl(hostaddr->ipv4.sin_addr.s_addr); |
ef416fc2 | 1611 | } |
1612 | else | |
1613 | memset(address, 0, sizeof(address)); | |
1614 | ||
5ec1fd3d | 1615 | hostlen = strlen(hostname); |
ef416fc2 | 1616 | |
5ec1fd3d | 1617 | auth = cupsdCheckAccess(address, hostname, hostlen, best) |
5bd77a73 | 1618 | ? CUPSD_AUTH_ALLOW : CUPSD_AUTH_DENY; |
ef416fc2 | 1619 | |
ffe32673 | 1620 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: auth=CUPSD_AUTH_%s...", auth ? "DENY" : "ALLOW"); |
ef416fc2 | 1621 | |
5bd77a73 | 1622 | if (auth == CUPSD_AUTH_DENY && best->satisfy == CUPSD_AUTH_SATISFY_ALL) |
ef416fc2 | 1623 | return (HTTP_FORBIDDEN); |
1624 | ||
1625 | #ifdef HAVE_SSL | |
1626 | /* | |
1627 | * See if encryption is required... | |
1628 | */ | |
1629 | ||
996acce8 | 1630 | if ((best->encryption >= HTTP_ENCRYPT_REQUIRED && !con->http->tls && |
5ec1fd3d MS |
1631 | _cups_strcasecmp(hostname, "localhost") && |
1632 | !httpAddrLocalhost(hostaddr) && | |
5bd77a73 | 1633 | best->satisfy == CUPSD_AUTH_SATISFY_ALL) && |
c8fef167 | 1634 | !(type == CUPSD_AUTH_NEGOTIATE || |
dcb445bc MS |
1635 | (type == CUPSD_AUTH_NONE && |
1636 | cupsdDefaultAuthType() == CUPSD_AUTH_NEGOTIATE))) | |
ef416fc2 | 1637 | { |
355e94dc | 1638 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
ef416fc2 | 1639 | "cupsdIsAuthorized: Need upgrade to TLS..."); |
1640 | return (HTTP_UPGRADE_REQUIRED); | |
1641 | } | |
1642 | #endif /* HAVE_SSL */ | |
1643 | ||
1644 | /* | |
1645 | * Now see what access level is required... | |
1646 | */ | |
1647 | ||
5bd77a73 | 1648 | if (best->level == CUPSD_AUTH_ANON || /* Anonymous access - allow it */ |
10d09e33 | 1649 | (type == CUPSD_AUTH_NONE && cupsArrayCount(best->names) == 0)) |
ef416fc2 | 1650 | return (HTTP_OK); |
1651 | ||
5bd77a73 MS |
1652 | if (!con->username[0] && type == CUPSD_AUTH_NONE && |
1653 | best->limit == CUPSD_AUTH_LIMIT_IPP) | |
ef416fc2 | 1654 | { |
1655 | /* | |
1656 | * Check for unauthenticated username... | |
1657 | */ | |
1658 | ||
1659 | ipp_attribute_t *attr; /* requesting-user-name attribute */ | |
1660 | ||
1661 | ||
1662 | attr = ippFindAttribute(con->request, "requesting-user-name", IPP_TAG_NAME); | |
1663 | if (attr) | |
1664 | { | |
355e94dc | 1665 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
ef416fc2 | 1666 | "cupsdIsAuthorized: requesting-user-name=\"%s\"", |
1667 | attr->values[0].string.text); | |
db1f069b | 1668 | strlcpy(username, attr->values[0].string.text, sizeof(username)); |
ef416fc2 | 1669 | } |
5bd77a73 | 1670 | else if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY) |
ef416fc2 | 1671 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1672 | else | |
1673 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1674 | } | |
fa73b229 | 1675 | else |
1676 | { | |
355e94dc | 1677 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdIsAuthorized: username=\"%s\"", |
fa73b229 | 1678 | con->username); |
1679 | ||
f7deaa1a | 1680 | #ifdef HAVE_AUTHORIZATION_H |
1681 | if (!con->username[0] && !con->authref) | |
1682 | #else | |
fa73b229 | 1683 | if (!con->username[0]) |
f7deaa1a | 1684 | #endif /* HAVE_AUTHORIZATION_H */ |
fa73b229 | 1685 | { |
5bd77a73 | 1686 | if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY) |
fa73b229 | 1687 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1688 | else | |
1689 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1690 | } | |
1691 | ||
eac3a0a0 | 1692 | |
5bd77a73 | 1693 | if (con->type != type && type != CUPSD_AUTH_NONE && |
eac3a0a0 MS |
1694 | #ifdef HAVE_GSSAPI |
1695 | (type != CUPSD_AUTH_NEGOTIATE || con->gss_uid <= 0) && | |
1696 | #endif /* HAVE_GSSAPI */ | |
e0660879 | 1697 | con->type != CUPSD_AUTH_BASIC) |
2fb76298 | 1698 | { |
e0660879 | 1699 | cupsdLogMessage(CUPSD_LOG_ERROR, "Authorized using %s, expected %s.", |
2fb76298 MS |
1700 | types[con->type], types[type]); |
1701 | ||
1702 | return (HTTP_UNAUTHORIZED); | |
1703 | } | |
1704 | ||
db1f069b | 1705 | strlcpy(username, con->username, sizeof(username)); |
fa73b229 | 1706 | } |
ef416fc2 | 1707 | |
1708 | /* | |
fa73b229 | 1709 | * OK, got a username. See if we need normal user access, or group |
ef416fc2 | 1710 | * access... (root always matches) |
1711 | */ | |
1712 | ||
fa73b229 | 1713 | if (!strcmp(username, "root")) |
ef416fc2 | 1714 | return (HTTP_OK); |
1715 | ||
db1f069b MS |
1716 | /* |
1717 | * Strip any @domain or @KDC from the username and owner... | |
1718 | */ | |
1719 | ||
1720 | if ((ptr = strchr(username, '@')) != NULL) | |
1721 | *ptr = '\0'; | |
1722 | ||
1723 | if (owner) | |
1724 | { | |
1725 | strlcpy(ownername, owner, sizeof(ownername)); | |
1726 | ||
1727 | if ((ptr = strchr(ownername, '@')) != NULL) | |
1728 | *ptr = '\0'; | |
1729 | } | |
1730 | else | |
1731 | ownername[0] = '\0'; | |
1732 | ||
ef416fc2 | 1733 | /* |
1734 | * Get the user info... | |
1735 | */ | |
1736 | ||
f7deaa1a | 1737 | if (username[0]) |
1738 | { | |
1739 | pw = getpwnam(username); | |
1740 | endpwent(); | |
1741 | } | |
1742 | else | |
1743 | pw = NULL; | |
ef416fc2 | 1744 | |
5bd77a73 | 1745 | if (best->level == CUPSD_AUTH_USER) |
ef416fc2 | 1746 | { |
1747 | /* | |
1748 | * If there are no names associated with this location, then | |
1749 | * any valid user is OK... | |
1750 | */ | |
1751 | ||
10d09e33 | 1752 | if (cupsArrayCount(best->names) == 0) |
ef416fc2 | 1753 | return (HTTP_OK); |
1754 | ||
1755 | /* | |
1756 | * Otherwise check the user list and return OK if this user is | |
1757 | * allowed... | |
1758 | */ | |
1759 | ||
ffe32673 | 1760 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking user membership..."); |
ef416fc2 | 1761 | |
f7deaa1a | 1762 | #ifdef HAVE_AUTHORIZATION_H |
1763 | /* | |
1764 | * If an authorization reference was supplied it must match a right name... | |
1765 | */ | |
1766 | ||
1767 | if (con->authref) | |
1768 | { | |
10d09e33 MS |
1769 | for (name = (char *)cupsArrayFirst(best->names); |
1770 | name; | |
1771 | name = (char *)cupsArrayNext(best->names)) | |
f7deaa1a | 1772 | { |
88f9aafc | 1773 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) && check_authref(con, name + 9)) |
f7deaa1a | 1774 | return (HTTP_OK); |
88f9aafc | 1775 | else if (!_cups_strcasecmp(name, "@SYSTEM") && SystemGroupAuthKey && |
f7deaa1a | 1776 | check_authref(con, SystemGroupAuthKey)) |
1777 | return (HTTP_OK); | |
1778 | } | |
1779 | ||
ee571f26 | 1780 | return (HTTP_FORBIDDEN); |
f7deaa1a | 1781 | } |
1782 | #endif /* HAVE_AUTHORIZATION_H */ | |
1783 | ||
10d09e33 MS |
1784 | for (name = (char *)cupsArrayFirst(best->names); |
1785 | name; | |
1786 | name = (char *)cupsArrayNext(best->names)) | |
ef416fc2 | 1787 | { |
88f9aafc MS |
1788 | if (!_cups_strcasecmp(name, "@OWNER") && owner && |
1789 | !_cups_strcasecmp(username, ownername)) | |
ef416fc2 | 1790 | return (HTTP_OK); |
88f9aafc | 1791 | else if (!_cups_strcasecmp(name, "@SYSTEM")) |
ef416fc2 | 1792 | { |
10d09e33 MS |
1793 | for (i = 0; i < NumSystemGroups; i ++) |
1794 | if (cupsdCheckGroup(username, pw, SystemGroups[i])) | |
ef416fc2 | 1795 | return (HTTP_OK); |
1796 | } | |
10d09e33 | 1797 | else if (name[0] == '@') |
ef416fc2 | 1798 | { |
10d09e33 | 1799 | if (cupsdCheckGroup(username, pw, name + 1)) |
ef416fc2 | 1800 | return (HTTP_OK); |
1801 | } | |
88f9aafc | 1802 | else if (!_cups_strcasecmp(username, name)) |
ef416fc2 | 1803 | return (HTTP_OK); |
1804 | } | |
1805 | ||
85dda01c | 1806 | return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED); |
ef416fc2 | 1807 | } |
1808 | ||
1809 | /* | |
1810 | * Check to see if this user is in any of the named groups... | |
1811 | */ | |
1812 | ||
ffe32673 | 1813 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking group membership..."); |
ef416fc2 | 1814 | |
1815 | /* | |
1816 | * Check to see if this user is in any of the named groups... | |
1817 | */ | |
1818 | ||
10d09e33 MS |
1819 | for (name = (char *)cupsArrayFirst(best->names); |
1820 | name; | |
1821 | name = (char *)cupsArrayNext(best->names)) | |
ef416fc2 | 1822 | { |
ffe32673 | 1823 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking group \"%s\" membership...", name); |
ef416fc2 | 1824 | |
88f9aafc | 1825 | if (!_cups_strcasecmp(name, "@SYSTEM")) |
ef416fc2 | 1826 | { |
10d09e33 MS |
1827 | for (i = 0; i < NumSystemGroups; i ++) |
1828 | if (cupsdCheckGroup(username, pw, SystemGroups[i])) | |
ef416fc2 | 1829 | return (HTTP_OK); |
1830 | } | |
10d09e33 | 1831 | else if (cupsdCheckGroup(username, pw, name)) |
ef416fc2 | 1832 | return (HTTP_OK); |
1833 | } | |
1834 | ||
1835 | /* | |
1836 | * The user isn't part of the specified group, so deny access... | |
1837 | */ | |
1838 | ||
ffe32673 | 1839 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdIsAuthorized: User not in group(s)."); |
ef416fc2 | 1840 | |
85dda01c | 1841 | return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED); |
ef416fc2 | 1842 | } |
1843 | ||
1844 | ||
1845 | /* | |
10d09e33 MS |
1846 | * 'cupsdNewLocation()' - Create a new location for authorization. |
1847 | * | |
1848 | * Note: Still need to call cupsdAddLocation() to add it to the list of global | |
1849 | * locations. | |
ef416fc2 | 1850 | */ |
1851 | ||
10d09e33 MS |
1852 | cupsd_location_t * /* O - Pointer to new location record */ |
1853 | cupsdNewLocation(const char *location) /* I - Location path */ | |
ef416fc2 | 1854 | { |
10d09e33 | 1855 | cupsd_location_t *temp; /* New location */ |
ef416fc2 | 1856 | |
1857 | ||
1858 | /* | |
10d09e33 | 1859 | * Try to allocate memory for the new location. |
ef416fc2 | 1860 | */ |
1861 | ||
10d09e33 | 1862 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) |
ef416fc2 | 1863 | return (NULL); |
1864 | ||
1865 | /* | |
10d09e33 | 1866 | * Initialize the record and copy the name over... |
ef416fc2 | 1867 | */ |
1868 | ||
10d09e33 MS |
1869 | if ((temp->location = _cupsStrAlloc(location)) == NULL) |
1870 | { | |
1871 | free(temp); | |
ef416fc2 | 1872 | return (NULL); |
10d09e33 | 1873 | } |
ef416fc2 | 1874 | |
10d09e33 | 1875 | temp->length = strlen(temp->location); |
ef416fc2 | 1876 | |
1877 | /* | |
10d09e33 | 1878 | * Return the new record... |
ef416fc2 | 1879 | */ |
1880 | ||
ef416fc2 | 1881 | return (temp); |
1882 | } | |
1883 | ||
1884 | ||
f7deaa1a | 1885 | #ifdef HAVE_AUTHORIZATION_H |
1886 | /* | |
1887 | * 'check_authref()' - Check if an authorization services reference has the | |
1888 | * supplied right. | |
1889 | */ | |
1890 | ||
1891 | static int /* O - 1 if right is valid, 0 otherwise */ | |
1892 | check_authref(cupsd_client_t *con, /* I - Connection */ | |
1893 | const char *right) /* I - Right name */ | |
1894 | { | |
1895 | OSStatus status; /* OS Status */ | |
1896 | AuthorizationItem authright; /* Authorization right */ | |
1897 | AuthorizationRights authrights; /* Authorization rights */ | |
1898 | AuthorizationFlags authflags; /* Authorization flags */ | |
1899 | ||
1900 | ||
1901 | /* | |
1902 | * Check to see if the user is allowed to perform the task... | |
1903 | */ | |
1904 | ||
1905 | if (!con->authref) | |
1906 | return (0); | |
1907 | ||
1908 | authright.name = right; | |
1909 | authright.valueLength = 0; | |
1910 | authright.value = NULL; | |
1911 | authright.flags = 0; | |
1912 | ||
1913 | authrights.count = 1; | |
1914 | authrights.items = &authright; | |
1915 | ||
c8fef167 | 1916 | authflags = kAuthorizationFlagDefaults | |
f7deaa1a | 1917 | kAuthorizationFlagExtendRights; |
1918 | ||
c8fef167 MS |
1919 | if ((status = AuthorizationCopyRights(con->authref, &authrights, |
1920 | kAuthorizationEmptyEnvironment, | |
f7deaa1a | 1921 | authflags, NULL)) != 0) |
1922 | { | |
fa26ab95 | 1923 | cupsdLogMessage(CUPSD_LOG_ERROR, "AuthorizationCopyRights(\"%s\") returned %d", authright.name, (int)status); |
f7deaa1a | 1924 | return (0); |
1925 | } | |
1926 | ||
ffe32673 | 1927 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "AuthorizationCopyRights(\"%s\") succeeded.", authright.name); |
f7deaa1a | 1928 | |
1929 | return (1); | |
1930 | } | |
1931 | #endif /* HAVE_AUTHORIZATION_H */ | |
1932 | ||
1933 | ||
bd7854cb | 1934 | /* |
1935 | * 'compare_locations()' - Compare two locations. | |
1936 | */ | |
1937 | ||
1938 | static int /* O - Result of comparison */ | |
1939 | compare_locations(cupsd_location_t *a, /* I - First location */ | |
1940 | cupsd_location_t *b) /* I - Second location */ | |
1941 | { | |
1942 | return (strcmp(b->location, a->location)); | |
1943 | } | |
1944 | ||
1945 | ||
10d09e33 MS |
1946 | /* |
1947 | * 'copy_authmask()' - Copy function for auth masks. | |
1948 | */ | |
1949 | ||
1950 | static cupsd_authmask_t * /* O - New auth mask */ | |
1951 | copy_authmask(cupsd_authmask_t *mask, /* I - Existing auth mask */ | |
1952 | void *data) /* I - User data (unused) */ | |
1953 | { | |
1954 | cupsd_authmask_t *temp; /* New auth mask */ | |
1955 | ||
1956 | ||
1957 | (void)data; | |
1958 | ||
1959 | if ((temp = malloc(sizeof(cupsd_authmask_t))) != NULL) | |
1960 | { | |
1961 | memcpy(temp, mask, sizeof(cupsd_authmask_t)); | |
1962 | ||
1963 | if (temp->type == CUPSD_AUTH_NAME || temp->type == CUPSD_AUTH_INTERFACE) | |
1964 | { | |
1965 | /* | |
1966 | * Make a copy of the name... | |
1967 | */ | |
1968 | ||
1969 | if ((temp->mask.name.name = _cupsStrAlloc(temp->mask.name.name)) == NULL) | |
1970 | { | |
1971 | /* | |
1972 | * Failed to make copy... | |
1973 | */ | |
1974 | ||
1975 | free(temp); | |
1976 | temp = NULL; | |
1977 | } | |
1978 | } | |
1979 | } | |
1980 | ||
1981 | return (temp); | |
1982 | } | |
1983 | ||
1984 | ||
10d09e33 MS |
1985 | /* |
1986 | * 'free_authmask()' - Free function for auth masks. | |
1987 | */ | |
1988 | ||
1989 | static void | |
1990 | free_authmask(cupsd_authmask_t *mask, /* I - Auth mask to free */ | |
1991 | void *data) /* I - User data (unused) */ | |
1992 | { | |
1993 | (void)data; | |
1994 | ||
1995 | if (mask->type == CUPSD_AUTH_NAME || mask->type == CUPSD_AUTH_INTERFACE) | |
1996 | _cupsStrFree(mask->mask.name.name); | |
1997 | ||
1998 | free(mask); | |
1999 | } | |
2000 | ||
2001 | ||
ef416fc2 | 2002 | #if HAVE_LIBPAM |
2003 | /* | |
2004 | * 'pam_func()' - PAM conversation function. | |
2005 | */ | |
2006 | ||
2007 | static int /* O - Success or failure */ | |
2008 | pam_func( | |
2009 | int num_msg, /* I - Number of messages */ | |
2010 | const struct pam_message **msg, /* I - Messages */ | |
2011 | struct pam_response **resp, /* O - Responses */ | |
2012 | void *appdata_ptr) | |
2013 | /* I - Pointer to connection */ | |
2014 | { | |
2015 | int i; /* Looping var */ | |
2016 | struct pam_response *replies; /* Replies */ | |
2017 | cupsd_authdata_t *data; /* Pointer to auth data */ | |
2018 | ||
2019 | ||
2020 | /* | |
2021 | * Allocate memory for the responses... | |
2022 | */ | |
2023 | ||
7e86f2f6 | 2024 | if ((replies = malloc(sizeof(struct pam_response) * (size_t)num_msg)) == NULL) |
ef416fc2 | 2025 | return (PAM_CONV_ERR); |
2026 | ||
2027 | /* | |
2028 | * Answer all of the messages... | |
2029 | */ | |
2030 | ||
ef416fc2 | 2031 | data = (cupsd_authdata_t *)appdata_ptr; |
ef416fc2 | 2032 | |
2033 | for (i = 0; i < num_msg; i ++) | |
2034 | { | |
ef416fc2 | 2035 | switch (msg[i]->msg_style) |
2036 | { | |
2037 | case PAM_PROMPT_ECHO_ON: | |
ef416fc2 | 2038 | replies[i].resp_retcode = PAM_SUCCESS; |
2039 | replies[i].resp = strdup(data->username); | |
2040 | break; | |
2041 | ||
2042 | case PAM_PROMPT_ECHO_OFF: | |
ef416fc2 | 2043 | replies[i].resp_retcode = PAM_SUCCESS; |
2044 | replies[i].resp = strdup(data->password); | |
2045 | break; | |
2046 | ||
2047 | case PAM_TEXT_INFO: | |
ef416fc2 | 2048 | replies[i].resp_retcode = PAM_SUCCESS; |
2049 | replies[i].resp = NULL; | |
2050 | break; | |
2051 | ||
2052 | case PAM_ERROR_MSG: | |
ef416fc2 | 2053 | replies[i].resp_retcode = PAM_SUCCESS; |
2054 | replies[i].resp = NULL; | |
2055 | break; | |
2056 | ||
2057 | default: | |
ef416fc2 | 2058 | free(replies); |
2059 | return (PAM_CONV_ERR); | |
2060 | } | |
2061 | } | |
2062 | ||
2063 | /* | |
2064 | * Return the responses back to PAM... | |
2065 | */ | |
2066 | ||
2067 | *resp = replies; | |
2068 | ||
2069 | return (PAM_SUCCESS); | |
2070 | } | |
5a1d7a17 | 2071 | #else |
ef416fc2 | 2072 | |
2073 | ||
2074 | /* | |
2075 | * 'to64()' - Base64-encode an integer value... | |
2076 | */ | |
2077 | ||
2078 | static void | |
2079 | to64(char *s, /* O - Output string */ | |
2080 | unsigned long v, /* I - Value to encode */ | |
2081 | int n) /* I - Number of digits */ | |
2082 | { | |
2083 | const char *itoa64 = "./0123456789" | |
2084 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
2085 | "abcdefghijklmnopqrstuvwxyz"; | |
2086 | ||
2087 | ||
2088 | for (; n > 0; n --, v >>= 6) | |
2089 | *s++ = itoa64[v & 0x3f]; | |
2090 | } | |
2091 | #endif /* HAVE_LIBPAM */ |