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Commit | Line | Data |
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b423cd4c | 1 | /* |
5ec1fd3d | 2 | * Authorization routines for the CUPS scheduler. |
ef416fc2 | 3 | * |
6eb98aee | 4 | * Copyright 2007-2016 by Apple Inc. |
5ec1fd3d | 5 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
f7deaa1a | 6 | * |
5ec1fd3d MS |
7 | * This file contains Kerberos support code, copyright 2006 by |
8 | * Jelmer Vernooij. | |
ef416fc2 | 9 | * |
5ec1fd3d MS |
10 | * These coded instructions, statements, and computer programs are the |
11 | * property of Apple Inc. and are protected by Federal copyright | |
12 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
13 | * which should have been included with this file. If this file is | |
14 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 15 | */ |
16 | ||
17 | /* | |
18 | * Include necessary headers... | |
19 | */ | |
20 | ||
21 | #include "cupsd.h" | |
22 | #include <grp.h> | |
23 | #ifdef HAVE_SHADOW_H | |
24 | # include <shadow.h> | |
25 | #endif /* HAVE_SHADOW_H */ | |
26 | #ifdef HAVE_CRYPT_H | |
27 | # include <crypt.h> | |
28 | #endif /* HAVE_CRYPT_H */ | |
29 | #if HAVE_LIBPAM | |
30 | # ifdef HAVE_PAM_PAM_APPL_H | |
31 | # include <pam/pam_appl.h> | |
32 | # else | |
33 | # include <security/pam_appl.h> | |
34 | # endif /* HAVE_PAM_PAM_APPL_H */ | |
35 | #endif /* HAVE_LIBPAM */ | |
bd7854cb | 36 | #ifdef HAVE_MEMBERSHIP_H |
37 | # include <membership.h> | |
38 | #endif /* HAVE_MEMBERSHIP_H */ | |
f7deaa1a | 39 | #ifdef HAVE_AUTHORIZATION_H |
40 | # include <Security/AuthorizationTags.h> | |
41 | # ifdef HAVE_SECBASEPRIV_H | |
42 | # include <Security/SecBasePriv.h> | |
43 | # else | |
44 | extern const char *cssmErrorString(int error); | |
45 | # endif /* HAVE_SECBASEPRIV_H */ | |
46 | #endif /* HAVE_AUTHORIZATION_H */ | |
db1f069b MS |
47 | #ifdef HAVE_SYS_PARAM_H |
48 | # include <sys/param.h> | |
49 | #endif /* HAVE_SYS_PARAM_H */ | |
bc44d920 | 50 | #ifdef HAVE_SYS_UCRED_H |
51 | # include <sys/ucred.h> | |
52 | typedef struct xucred cupsd_ucred_t; | |
53 | # define CUPSD_UCRED_UID(c) (c).cr_uid | |
54 | #else | |
5a9febac | 55 | # ifndef __OpenBSD__ |
bc44d920 | 56 | typedef struct ucred cupsd_ucred_t; |
5a9febac MS |
57 | # else |
58 | typedef struct sockpeercred cupsd_ucred_t; | |
59 | # endif | |
bc44d920 | 60 | # define CUPSD_UCRED_UID(c) (c).uid |
61 | #endif /* HAVE_SYS_UCRED_H */ | |
ef416fc2 | 62 | |
63 | ||
64 | /* | |
65 | * Local functions... | |
66 | */ | |
67 | ||
f7deaa1a | 68 | #ifdef HAVE_AUTHORIZATION_H |
69 | static int check_authref(cupsd_client_t *con, const char *right); | |
70 | #endif /* HAVE_AUTHORIZATION_H */ | |
bd7854cb | 71 | static int compare_locations(cupsd_location_t *a, |
72 | cupsd_location_t *b); | |
10d09e33 | 73 | static cupsd_authmask_t *copy_authmask(cupsd_authmask_t *am, void *data); |
5a1d7a17 | 74 | #if !HAVE_LIBPAM |
ef416fc2 | 75 | static char *cups_crypt(const char *pw, const char *salt); |
5a1d7a17 | 76 | #endif /* !HAVE_LIBPAM */ |
10d09e33 | 77 | static void free_authmask(cupsd_authmask_t *am, void *data); |
ef416fc2 | 78 | #if HAVE_LIBPAM |
79 | static int pam_func(int, const struct pam_message **, | |
80 | struct pam_response **, void *); | |
5a1d7a17 | 81 | #else |
ef416fc2 | 82 | static void to64(char *s, unsigned long v, int n); |
83 | #endif /* HAVE_LIBPAM */ | |
84 | ||
85 | ||
86 | /* | |
87 | * Local structures... | |
88 | */ | |
89 | ||
90 | #if HAVE_LIBPAM | |
91 | typedef struct cupsd_authdata_s /**** Authentication data ****/ | |
92 | { | |
3e7fe0ca MS |
93 | char username[HTTP_MAX_VALUE], /* Username string */ |
94 | password[HTTP_MAX_VALUE]; /* Password string */ | |
ef416fc2 | 95 | } cupsd_authdata_t; |
96 | #endif /* HAVE_LIBPAM */ | |
97 | ||
98 | ||
ef416fc2 | 99 | /* |
10d09e33 | 100 | * 'cupsdAddIPMask()' - Add an IP address authorization mask. |
ef416fc2 | 101 | */ |
102 | ||
10d09e33 MS |
103 | int /* O - 1 on success, 0 on failure */ |
104 | cupsdAddIPMask( | |
105 | cups_array_t **masks, /* IO - Masks array (created as needed) */ | |
106 | const unsigned address[4], /* I - IP address */ | |
107 | const unsigned netmask[4]) /* I - IP netmask */ | |
ef416fc2 | 108 | { |
10d09e33 | 109 | cupsd_authmask_t temp; /* New host/domain mask */ |
ef416fc2 | 110 | |
111 | ||
ffe32673 | 112 | 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 | 113 | |
10d09e33 MS |
114 | temp.type = CUPSD_AUTH_IP; |
115 | memcpy(temp.mask.ip.address, address, sizeof(temp.mask.ip.address)); | |
116 | memcpy(temp.mask.ip.netmask, netmask, sizeof(temp.mask.ip.netmask)); | |
ef416fc2 | 117 | |
bd7854cb | 118 | /* |
10d09e33 | 119 | * Create the masks array as needed and add... |
bd7854cb | 120 | */ |
121 | ||
10d09e33 MS |
122 | if (!*masks) |
123 | *masks = cupsArrayNew3(NULL, NULL, NULL, 0, | |
124 | (cups_acopy_func_t)copy_authmask, | |
125 | (cups_afree_func_t)free_authmask); | |
ef416fc2 | 126 | |
10d09e33 MS |
127 | return (cupsArrayAdd(*masks, &temp)); |
128 | } | |
ef416fc2 | 129 | |
bd7854cb | 130 | |
10d09e33 MS |
131 | /* |
132 | * 'cupsdAddLocation()' - Add a location for authorization. | |
133 | */ | |
ef416fc2 | 134 | |
10d09e33 MS |
135 | void |
136 | cupsdAddLocation(cupsd_location_t *loc) /* I - Location to add */ | |
137 | { | |
ef416fc2 | 138 | /* |
10d09e33 | 139 | * Make sure the locations array is created... |
ef416fc2 | 140 | */ |
141 | ||
10d09e33 MS |
142 | if (!Locations) |
143 | Locations = cupsArrayNew3((cups_array_func_t)compare_locations, NULL, | |
144 | (cups_ahash_func_t)NULL, 0, | |
145 | (cups_acopy_func_t)NULL, | |
146 | (cups_afree_func_t)cupsdFreeLocation); | |
147 | ||
148 | if (Locations) | |
149 | { | |
150 | cupsArrayAdd(Locations, loc); | |
151 | ||
ffe32673 | 152 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddLocation: Added location \"%s\"", loc->location ? loc->location : "(null)"); |
10d09e33 | 153 | } |
ef416fc2 | 154 | } |
155 | ||
156 | ||
157 | /* | |
158 | * 'cupsdAddName()' - Add a name to a location... | |
159 | */ | |
160 | ||
161 | void | |
162 | cupsdAddName(cupsd_location_t *loc, /* I - Location to add to */ | |
163 | char *name) /* I - Name to add */ | |
164 | { | |
ffe32673 | 165 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddName(loc=%p, name=\"%s\")", loc, name); |
ef416fc2 | 166 | |
10d09e33 MS |
167 | if (!loc->names) |
168 | loc->names = cupsArrayNew3(NULL, NULL, NULL, 0, | |
169 | (cups_acopy_func_t)_cupsStrAlloc, | |
170 | (cups_afree_func_t)_cupsStrFree); | |
ef416fc2 | 171 | |
10d09e33 | 172 | if (!cupsArrayAdd(loc->names, name)) |
ef416fc2 | 173 | { |
174 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
175 | "Unable to duplicate name for location %s: %s", | |
e1d6a774 | 176 | loc->location ? loc->location : "nil", strerror(errno)); |
ef416fc2 | 177 | return; |
178 | } | |
ef416fc2 | 179 | } |
180 | ||
181 | ||
182 | /* | |
10d09e33 | 183 | * 'cupsdAddNameMask()' - Add a host or interface name authorization mask. |
ef416fc2 | 184 | */ |
185 | ||
10d09e33 MS |
186 | int /* O - 1 on success, 0 on failure */ |
187 | cupsdAddNameMask(cups_array_t **masks, /* IO - Masks array (created as needed) */ | |
188 | char *name) /* I - Host or interface name */ | |
ef416fc2 | 189 | { |
10d09e33 | 190 | cupsd_authmask_t temp; /* New host/domain mask */ |
ef416fc2 | 191 | char ifname[32], /* Interface name */ |
192 | *ifptr; /* Pointer to end of name */ | |
193 | ||
194 | ||
ffe32673 | 195 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddNameMask(masks=%p(%p), name=\"%s\")", masks, *masks, name); |
ef416fc2 | 196 | |
88f9aafc | 197 | if (!_cups_strcasecmp(name, "@LOCAL")) |
ef416fc2 | 198 | { |
199 | /* | |
10d09e33 | 200 | * Deny *interface*... |
ef416fc2 | 201 | */ |
202 | ||
10d09e33 MS |
203 | temp.type = CUPSD_AUTH_INTERFACE; |
204 | temp.mask.name.name = (char *)"*"; | |
ef416fc2 | 205 | } |
88f9aafc | 206 | else if (!_cups_strncasecmp(name, "@IF(", 4)) |
ef416fc2 | 207 | { |
208 | /* | |
10d09e33 | 209 | * Deny *interface*... |
ef416fc2 | 210 | */ |
211 | ||
212 | strlcpy(ifname, name + 4, sizeof(ifname)); | |
213 | ||
10d09e33 | 214 | ifptr = ifname + strlen(ifname) - 1; |
ef416fc2 | 215 | |
10d09e33 | 216 | if (ifptr >= ifname && *ifptr == ')') |
ef416fc2 | 217 | { |
218 | ifptr --; | |
219 | *ifptr = '\0'; | |
220 | } | |
221 | ||
10d09e33 MS |
222 | temp.type = CUPSD_AUTH_INTERFACE; |
223 | temp.mask.name.name = ifname; | |
ef416fc2 | 224 | } |
225 | else | |
226 | { | |
227 | /* | |
10d09e33 | 228 | * Deny name... |
ef416fc2 | 229 | */ |
230 | ||
10d09e33 MS |
231 | if (*name == '*') |
232 | name ++; | |
ef416fc2 | 233 | |
10d09e33 MS |
234 | temp.type = CUPSD_AUTH_NAME; |
235 | temp.mask.name.name = (char *)name; | |
236 | } | |
ef416fc2 | 237 | |
10d09e33 MS |
238 | /* |
239 | * Set the name length... | |
240 | */ | |
ef416fc2 | 241 | |
10d09e33 | 242 | temp.mask.name.length = strlen(temp.mask.name.name); |
ef416fc2 | 243 | |
10d09e33 MS |
244 | /* |
245 | * Create the masks array as needed and add... | |
246 | */ | |
ef416fc2 | 247 | |
10d09e33 MS |
248 | if (!*masks) |
249 | *masks = cupsArrayNew3(NULL, NULL, NULL, 0, | |
250 | (cups_acopy_func_t)copy_authmask, | |
251 | (cups_afree_func_t)free_authmask); | |
ef416fc2 | 252 | |
10d09e33 | 253 | return (cupsArrayAdd(*masks, &temp)); |
ef416fc2 | 254 | } |
255 | ||
256 | ||
257 | /* | |
258 | * 'cupsdAuthorize()' - Validate any authorization credentials. | |
259 | */ | |
260 | ||
261 | void | |
262 | cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */ | |
263 | { | |
264 | int type; /* Authentication type */ | |
f7deaa1a | 265 | const char *authorization; /* Pointer into Authorization string */ |
266 | char *ptr, /* Pointer into string */ | |
3e7fe0ca MS |
267 | username[HTTP_MAX_VALUE], |
268 | /* Username string */ | |
269 | password[HTTP_MAX_VALUE]; | |
270 | /* Password string */ | |
db0bd74a | 271 | cupsd_cert_t *localuser; /* Certificate username */ |
ef416fc2 | 272 | |
273 | ||
274 | /* | |
275 | * Locate the best matching location so we know what kind of | |
276 | * authentication to expect... | |
277 | */ | |
278 | ||
996acce8 | 279 | con->best = cupsdFindBest(con->uri, httpGetState(con->http)); |
5bd77a73 | 280 | con->type = CUPSD_AUTH_NONE; |
ef416fc2 | 281 | |
ffe32673 | 282 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "con->uri=\"%s\", con->best=%p(%s)", con->uri, con->best, con->best ? con->best->location : ""); |
ef416fc2 | 283 | |
5bd77a73 | 284 | if (con->best && con->best->type != CUPSD_AUTH_NONE) |
7ff4fea9 | 285 | { |
5bd77a73 | 286 | if (con->best->type == CUPSD_AUTH_DEFAULT) |
dcb445bc | 287 | type = cupsdDefaultAuthType(); |
7ff4fea9 MS |
288 | else |
289 | type = con->best->type; | |
290 | } | |
ef416fc2 | 291 | else |
dcb445bc | 292 | type = cupsdDefaultAuthType(); |
ef416fc2 | 293 | |
294 | /* | |
295 | * Decode the Authorization string... | |
296 | */ | |
297 | ||
996acce8 | 298 | authorization = httpGetField(con->http, HTTP_FIELD_AUTHORIZATION); |
ef416fc2 | 299 | |
ef416fc2 | 300 | username[0] = '\0'; |
301 | password[0] = '\0'; | |
302 | ||
07ed0e9a MS |
303 | #ifdef HAVE_GSSAPI |
304 | con->gss_uid = 0; | |
305 | #endif /* HAVE_GSSAPI */ | |
306 | ||
f7deaa1a | 307 | #ifdef HAVE_AUTHORIZATION_H |
308 | if (con->authref) | |
309 | { | |
310 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
311 | con->authref = NULL; | |
312 | } | |
313 | #endif /* HAVE_AUTHORIZATION_H */ | |
314 | ||
2fb76298 | 315 | if (!*authorization) |
ef416fc2 | 316 | { |
317 | /* | |
318 | * No authorization data provided, return early... | |
319 | */ | |
320 | ||
ffe32673 | 321 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "No authentication data provided."); |
ef416fc2 | 322 | return; |
323 | } | |
f7deaa1a | 324 | #ifdef HAVE_AUTHORIZATION_H |
c8fef167 | 325 | else if (!strncmp(authorization, "AuthRef ", 8) && |
5ec1fd3d | 326 | httpAddrLocalhost(httpGetAddress(con->http))) |
f7deaa1a | 327 | { |
328 | OSStatus status; /* Status */ | |
e0660879 MS |
329 | char authdata[HTTP_MAX_VALUE]; |
330 | /* Nonce value from client */ | |
f7deaa1a | 331 | int authlen; /* Auth string length */ |
332 | AuthorizationItemSet *authinfo; /* Authorization item set */ | |
333 | ||
334 | /* | |
335 | * Get the Authorization Services data... | |
336 | */ | |
337 | ||
c8fef167 | 338 | authorization += 8; |
f7deaa1a | 339 | while (isspace(*authorization & 255)) |
340 | authorization ++; | |
341 | ||
e0660879 MS |
342 | authlen = sizeof(authdata); |
343 | httpDecode64_2(authdata, &authlen, authorization); | |
f7deaa1a | 344 | |
345 | if (authlen != kAuthorizationExternalFormLength) | |
346 | { | |
ffe32673 | 347 | cupsdLogClient(con, CUPSD_LOG_ERROR, "External Authorization reference size is incorrect."); |
f7deaa1a | 348 | return; |
349 | } | |
350 | ||
e0660879 | 351 | if ((status = AuthorizationCreateFromExternalForm((AuthorizationExternalForm *)authdata, &con->authref)) != 0) |
f7deaa1a | 352 | { |
ffe32673 | 353 | cupsdLogClient(con, CUPSD_LOG_ERROR, "AuthorizationCreateFromExternalForm returned %d (%s)", (int)status, cssmErrorString(status)); |
f7deaa1a | 354 | return; |
355 | } | |
356 | ||
c8fef167 | 357 | username[0] = '\0'; |
ed6e7faf | 358 | |
c8fef167 | 359 | if (!AuthorizationCopyInfo(con->authref, kAuthorizationEnvironmentUsername, |
bf3816c7 | 360 | &authinfo)) |
e4572d57 | 361 | { |
ed6e7faf MS |
362 | if (authinfo->count == 1 && authinfo->items[0].value && |
363 | authinfo->items[0].valueLength >= 2) | |
c8fef167 | 364 | { |
ed6e7faf MS |
365 | strlcpy(username, authinfo->items[0].value, sizeof(username)); |
366 | ||
ffe32673 | 367 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using AuthRef.", username); |
c8fef167 MS |
368 | } |
369 | ||
e4572d57 | 370 | AuthorizationFreeItemSet(authinfo); |
e4572d57 | 371 | } |
355e94dc | 372 | |
c8fef167 MS |
373 | if (!username[0]) |
374 | { | |
375 | /* | |
376 | * No username in AuthRef, grab username using peer credentials... | |
377 | */ | |
378 | ||
379 | struct passwd *pwd; /* Password entry for this user */ | |
380 | cupsd_ucred_t peercred; /* Peer credentials */ | |
381 | socklen_t peersize; /* Size of peer credentials */ | |
382 | ||
383 | peersize = sizeof(peercred); | |
384 | ||
996acce8 | 385 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
c8fef167 | 386 | { |
ffe32673 | 387 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
c8fef167 MS |
388 | return; |
389 | } | |
390 | ||
391 | if ((pwd = getpwuid(CUPSD_UCRED_UID(peercred))) == NULL) | |
392 | { | |
ffe32673 | 393 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to find UID %d for peer credentials.", (int)CUPSD_UCRED_UID(peercred)); |
c8fef167 MS |
394 | return; |
395 | } | |
396 | ||
397 | strlcpy(username, pwd->pw_name, sizeof(username)); | |
398 | ||
ffe32673 | 399 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using AuthRef + PeerCred.", username); |
c8fef167 MS |
400 | } |
401 | ||
5bd77a73 | 402 | con->type = CUPSD_AUTH_BASIC; |
f7deaa1a | 403 | } |
404 | #endif /* HAVE_AUTHORIZATION_H */ | |
bc44d920 | 405 | #if defined(SO_PEERCRED) && defined(AF_LOCAL) |
406 | else if (!strncmp(authorization, "PeerCred ", 9) && | |
0d40cb1e | 407 | con->http->hostaddr->addr.sa_family == AF_LOCAL && con->best) |
bc44d920 | 408 | { |
409 | /* | |
410 | * Use peer credentials from domain socket connection... | |
411 | */ | |
412 | ||
413 | struct passwd *pwd; /* Password entry for this user */ | |
414 | cupsd_ucred_t peercred; /* Peer credentials */ | |
415 | socklen_t peersize; /* Size of peer credentials */ | |
f14324a7 MS |
416 | #ifdef HAVE_AUTHORIZATION_H |
417 | const char *name; /* Authorizing name */ | |
6961465f MS |
418 | int no_peer = 0; /* Don't allow peer credentials? */ |
419 | ||
420 | /* | |
421 | * See if we should allow peer credentials... | |
422 | */ | |
bc44d920 | 423 | |
f14324a7 MS |
424 | for (name = (char *)cupsArrayFirst(con->best->names); |
425 | name; | |
426 | name = (char *)cupsArrayNext(con->best->names)) | |
6961465f | 427 | { |
dcb445bc MS |
428 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) || |
429 | !_cups_strcasecmp(name, "@SYSTEM")) | |
f14324a7 | 430 | { |
6961465f MS |
431 | /* Normally don't want peer credentials if we need an auth key... */ |
432 | no_peer = 1; | |
433 | } | |
434 | else if (!_cups_strcasecmp(name, "@OWNER")) | |
435 | { | |
436 | /* but if @OWNER is present then we allow it... */ | |
437 | no_peer = 0; | |
438 | break; | |
f14324a7 | 439 | } |
6961465f MS |
440 | } |
441 | ||
442 | if (no_peer) | |
443 | { | |
ffe32673 | 444 | cupsdLogClient(con, CUPSD_LOG_ERROR, "PeerCred authentication not allowed for resource per AUTHKEY policy."); |
6961465f MS |
445 | return; |
446 | } | |
f14324a7 | 447 | #endif /* HAVE_AUTHORIZATION_H */ |
bc44d920 | 448 | |
449 | if ((pwd = getpwnam(authorization + 9)) == NULL) | |
450 | { | |
ffe32673 | 451 | cupsdLogClient(con, CUPSD_LOG_ERROR, "User \"%s\" does not exist.", authorization + 9); |
bc44d920 | 452 | return; |
453 | } | |
454 | ||
455 | peersize = sizeof(peercred); | |
456 | ||
f11a948a | 457 | # ifdef __APPLE__ |
996acce8 | 458 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
f11a948a | 459 | # else |
996acce8 | 460 | if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, &peersize)) |
f11a948a | 461 | # endif /* __APPLE__ */ |
bc44d920 | 462 | { |
ffe32673 | 463 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
bc44d920 | 464 | return; |
465 | } | |
466 | ||
467 | if (pwd->pw_uid != CUPSD_UCRED_UID(peercred)) | |
468 | { | |
ffe32673 | 469 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Invalid peer credentials for \"%s\" - got %d, expected %d.", authorization + 9, CUPSD_UCRED_UID(peercred), pwd->pw_uid); |
bc44d920 | 470 | # ifdef HAVE_SYS_UCRED_H |
ffe32673 MS |
471 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_version=%d", peercred.cr_version); |
472 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_uid=%d", peercred.cr_uid); | |
473 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_ngroups=%d", peercred.cr_ngroups); | |
474 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cr_groups[0]=%d", peercred.cr_groups[0]); | |
bc44d920 | 475 | # endif /* HAVE_SYS_UCRED_H */ |
476 | return; | |
477 | } | |
478 | ||
479 | strlcpy(username, authorization + 9, sizeof(username)); | |
355e94dc | 480 | |
eac3a0a0 MS |
481 | # ifdef HAVE_GSSAPI |
482 | con->gss_uid = CUPSD_UCRED_UID(peercred); | |
483 | # endif /* HAVE_GSSAPI */ | |
484 | ||
ffe32673 | 485 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as %s using PeerCred.", username); |
2fb76298 | 486 | |
5bd77a73 | 487 | con->type = CUPSD_AUTH_BASIC; |
bc44d920 | 488 | } |
489 | #endif /* SO_PEERCRED && AF_LOCAL */ | |
ef416fc2 | 490 | else if (!strncmp(authorization, "Local", 5) && |
5ec1fd3d | 491 | httpAddrLocalhost(httpGetAddress(con->http))) |
ef416fc2 | 492 | { |
493 | /* | |
494 | * Get Local certificate authentication data... | |
495 | */ | |
496 | ||
497 | authorization += 5; | |
80ca4592 | 498 | while (isspace(*authorization & 255)) |
ef416fc2 | 499 | authorization ++; |
500 | ||
0fa6c7fa | 501 | if ((localuser = cupsdFindCert(authorization)) == NULL) |
ef416fc2 | 502 | { |
ffe32673 | 503 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Local authentication certificate not found."); |
ef416fc2 | 504 | return; |
505 | } | |
2fb76298 | 506 | |
0fa6c7fa MS |
507 | strlcpy(username, localuser->username, sizeof(username)); |
508 | con->type = localuser->type; | |
509 | ||
ffe32673 | 510 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as %s using Local.", username); |
ef416fc2 | 511 | } |
2fb76298 | 512 | else if (!strncmp(authorization, "Basic", 5)) |
ef416fc2 | 513 | { |
514 | /* | |
515 | * Get the Basic authentication data... | |
516 | */ | |
517 | ||
518 | int userlen; /* Username:password length */ | |
519 | ||
520 | ||
521 | authorization += 5; | |
80ca4592 | 522 | while (isspace(*authorization & 255)) |
ef416fc2 | 523 | authorization ++; |
524 | ||
525 | userlen = sizeof(username); | |
526 | httpDecode64_2(username, &userlen, authorization); | |
527 | ||
528 | /* | |
529 | * Pull the username and password out... | |
530 | */ | |
531 | ||
532 | if ((ptr = strchr(username, ':')) == NULL) | |
533 | { | |
ffe32673 | 534 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Missing Basic password."); |
ef416fc2 | 535 | return; |
536 | } | |
537 | ||
538 | *ptr++ = '\0'; | |
539 | ||
540 | if (!username[0]) | |
541 | { | |
542 | /* | |
543 | * Username must not be empty... | |
544 | */ | |
545 | ||
ffe32673 | 546 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Empty Basic username."); |
ef416fc2 | 547 | return; |
548 | } | |
549 | ||
550 | if (!*ptr) | |
551 | { | |
552 | /* | |
553 | * Password must not be empty... | |
554 | */ | |
555 | ||
ffe32673 | 556 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Empty Basic password."); |
ef416fc2 | 557 | return; |
558 | } | |
559 | ||
560 | strlcpy(password, ptr, sizeof(password)); | |
561 | ||
562 | /* | |
563 | * Validate the username and password... | |
564 | */ | |
565 | ||
566 | switch (type) | |
567 | { | |
2fb76298 | 568 | default : |
5bd77a73 | 569 | case CUPSD_AUTH_BASIC : |
ef416fc2 | 570 | { |
571 | #if HAVE_LIBPAM | |
572 | /* | |
573 | * Only use PAM to do authentication. This supports MD5 | |
574 | * passwords, among other things... | |
575 | */ | |
576 | ||
577 | pam_handle_t *pamh; /* PAM authentication handle */ | |
578 | int pamerr; /* PAM error code */ | |
579 | struct pam_conv pamdata;/* PAM conversation data */ | |
580 | cupsd_authdata_t data; /* Authentication data */ | |
581 | ||
582 | ||
583 | strlcpy(data.username, username, sizeof(data.username)); | |
584 | strlcpy(data.password, password, sizeof(data.password)); | |
585 | ||
5a1d7a17 | 586 | # ifdef __sun |
e1d6a774 | 587 | pamdata.conv = (int (*)(int, struct pam_message **, |
588 | struct pam_response **, | |
589 | void *))pam_func; | |
590 | # else | |
ef416fc2 | 591 | pamdata.conv = pam_func; |
5a1d7a17 | 592 | # endif /* __sun */ |
ef416fc2 | 593 | pamdata.appdata_ptr = &data; |
594 | ||
ef416fc2 | 595 | pamerr = pam_start("cups", username, &pamdata, &pamh); |
596 | if (pamerr != PAM_SUCCESS) | |
597 | { | |
ffe32673 | 598 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_start() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 599 | return; |
600 | } | |
601 | ||
ee571f26 MS |
602 | # ifdef HAVE_PAM_SET_ITEM |
603 | # ifdef PAM_RHOST | |
996acce8 | 604 | pamerr = pam_set_item(pamh, PAM_RHOST, con->http->hostname); |
a4924f6c | 605 | if (pamerr != PAM_SUCCESS) |
ffe32673 | 606 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_set_item(PAM_RHOST) returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ee571f26 MS |
607 | # endif /* PAM_RHOST */ |
608 | ||
609 | # ifdef PAM_TTY | |
610 | pamerr = pam_set_item(pamh, PAM_TTY, "cups"); | |
611 | if (pamerr != PAM_SUCCESS) | |
ffe32673 | 612 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_set_item(PAM_TTY) returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ee571f26 MS |
613 | # endif /* PAM_TTY */ |
614 | # endif /* HAVE_PAM_SET_ITEM */ | |
615 | ||
ef416fc2 | 616 | pamerr = pam_authenticate(pamh, PAM_SILENT); |
617 | if (pamerr != PAM_SUCCESS) | |
618 | { | |
ffe32673 | 619 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_authenticate() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 620 | pam_end(pamh, 0); |
621 | return; | |
622 | } | |
623 | ||
94da7e34 MS |
624 | # ifdef HAVE_PAM_SETCRED |
625 | pamerr = pam_setcred(pamh, PAM_ESTABLISH_CRED | PAM_SILENT); | |
626 | if (pamerr != PAM_SUCCESS) | |
ffe32673 | 627 | cupsdLogClient(con, CUPSD_LOG_WARN, "pam_setcred() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
94da7e34 MS |
628 | # endif /* HAVE_PAM_SETCRED */ |
629 | ||
ef416fc2 | 630 | pamerr = pam_acct_mgmt(pamh, PAM_SILENT); |
631 | if (pamerr != PAM_SUCCESS) | |
632 | { | |
ffe32673 | 633 | cupsdLogClient(con, CUPSD_LOG_ERROR, "pam_acct_mgmt() returned %d (%s)", pamerr, pam_strerror(pamh, pamerr)); |
ef416fc2 | 634 | pam_end(pamh, 0); |
635 | return; | |
636 | } | |
637 | ||
638 | pam_end(pamh, PAM_SUCCESS); | |
639 | ||
ef416fc2 | 640 | #else |
641 | /* | |
642 | * Use normal UNIX password file-based authentication... | |
643 | */ | |
644 | ||
645 | char *pass; /* Encrypted password */ | |
646 | struct passwd *pw; /* User password data */ | |
647 | # ifdef HAVE_SHADOW_H | |
648 | struct spwd *spw; /* Shadow password data */ | |
649 | # endif /* HAVE_SHADOW_H */ | |
650 | ||
651 | ||
652 | pw = getpwnam(username); /* Get the current password */ | |
653 | endpwent(); /* Close the password file */ | |
654 | ||
655 | if (!pw) | |
656 | { | |
657 | /* | |
658 | * No such user... | |
659 | */ | |
660 | ||
ffe32673 | 661 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unknown username \"%s\".", username); |
80ca4592 | 662 | return; |
ef416fc2 | 663 | } |
664 | ||
665 | # ifdef HAVE_SHADOW_H | |
666 | spw = getspnam(username); | |
667 | endspent(); | |
668 | ||
669 | if (!spw && !strcmp(pw->pw_passwd, "x")) | |
670 | { | |
671 | /* | |
672 | * Don't allow blank passwords! | |
673 | */ | |
674 | ||
ffe32673 | 675 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Username \"%s\" has no shadow password.", username); |
ef416fc2 | 676 | return; |
677 | } | |
678 | ||
679 | if (spw && !spw->sp_pwdp[0] && !pw->pw_passwd[0]) | |
680 | # else | |
681 | if (!pw->pw_passwd[0]) | |
682 | # endif /* HAVE_SHADOW_H */ | |
683 | { | |
684 | /* | |
685 | * Don't allow blank passwords! | |
686 | */ | |
687 | ||
ffe32673 | 688 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Username \"%s\" has no password.", username); |
ef416fc2 | 689 | return; |
690 | } | |
691 | ||
692 | /* | |
693 | * OK, the password isn't blank, so compare with what came from the | |
694 | * client... | |
695 | */ | |
696 | ||
697 | pass = cups_crypt(password, pw->pw_passwd); | |
698 | ||
ef416fc2 | 699 | if (!pass || strcmp(pw->pw_passwd, pass)) |
700 | { | |
701 | # ifdef HAVE_SHADOW_H | |
702 | if (spw) | |
703 | { | |
704 | pass = cups_crypt(password, spw->sp_pwdp); | |
705 | ||
ef416fc2 | 706 | if (pass == NULL || strcmp(spw->sp_pwdp, pass)) |
707 | { | |
ffe32673 | 708 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Authentication failed for user \"%s\".", username); |
ef416fc2 | 709 | return; |
710 | } | |
711 | } | |
712 | else | |
713 | # endif /* HAVE_SHADOW_H */ | |
714 | { | |
ffe32673 | 715 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Authentication failed for user \"%s\".", username); |
ef416fc2 | 716 | return; |
717 | } | |
718 | } | |
719 | #endif /* HAVE_LIBPAM */ | |
720 | } | |
355e94dc | 721 | |
ffe32673 | 722 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using Basic.", username); |
ef416fc2 | 723 | break; |
ef416fc2 | 724 | } |
2fb76298 MS |
725 | |
726 | con->type = type; | |
ef416fc2 | 727 | } |
f7deaa1a | 728 | #ifdef HAVE_GSSAPI |
c8fef167 | 729 | else if (!strncmp(authorization, "Negotiate", 9)) |
f7deaa1a | 730 | { |
731 | int len; /* Length of authorization string */ | |
f7deaa1a | 732 | gss_ctx_id_t context; /* Authorization context */ |
733 | OM_uint32 major_status, /* Major status code */ | |
734 | minor_status; /* Minor status code */ | |
735 | gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER, | |
736 | /* Input token from string */ | |
737 | output_token = GSS_C_EMPTY_BUFFER; | |
738 | /* Output token for username */ | |
739 | gss_name_t client_name; /* Client name */ | |
740 | ||
741 | ||
f42414bf | 742 | # ifdef __APPLE__ |
743 | /* | |
744 | * If the weak-linked GSSAPI/Kerberos library is not present, don't try | |
745 | * to use it... | |
746 | */ | |
747 | ||
d2ff4622 | 748 | if (&gss_init_sec_context == NULL) |
f42414bf | 749 | { |
ffe32673 | 750 | cupsdLogClient(con, CUPSD_LOG_WARN, "GSSAPI/Kerberos authentication failed because the Kerberos framework is not present."); |
f42414bf | 751 | return; |
752 | } | |
753 | # endif /* __APPLE__ */ | |
754 | ||
f7deaa1a | 755 | /* |
756 | * Find the start of the Kerberos input token... | |
757 | */ | |
758 | ||
759 | authorization += 9; | |
760 | while (isspace(*authorization & 255)) | |
761 | authorization ++; | |
762 | ||
763 | if (!*authorization) | |
764 | { | |
ffe32673 | 765 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "No authentication data specified."); |
f7deaa1a | 766 | return; |
767 | } | |
768 | ||
f7deaa1a | 769 | /* |
770 | * Decode the authorization string to get the input token... | |
771 | */ | |
772 | ||
7e86f2f6 MS |
773 | len = (int)strlen(authorization); |
774 | input_token.value = malloc((size_t)len); | |
f7deaa1a | 775 | input_token.value = httpDecode64_2(input_token.value, &len, |
c7017ecc | 776 | authorization); |
7e86f2f6 | 777 | input_token.length = (size_t)len; |
f7deaa1a | 778 | |
779 | /* | |
780 | * Accept the input token to get the authorization info... | |
781 | */ | |
782 | ||
783 | context = GSS_C_NO_CONTEXT; | |
784 | client_name = GSS_C_NO_NAME; | |
785 | major_status = gss_accept_sec_context(&minor_status, | |
786 | &context, | |
dcb445bc | 787 | ServerCreds, |
f7deaa1a | 788 | &input_token, |
789 | GSS_C_NO_CHANNEL_BINDINGS, | |
790 | &client_name, | |
791 | NULL, | |
07ed0e9a MS |
792 | &output_token, |
793 | NULL, | |
f7deaa1a | 794 | NULL, |
07ed0e9a MS |
795 | NULL); |
796 | ||
797 | if (output_token.length > 0) | |
798 | gss_release_buffer(&minor_status, &output_token); | |
f7deaa1a | 799 | |
800 | if (GSS_ERROR(major_status)) | |
801 | { | |
ffe32673 | 802 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Error accepting GSSAPI security context.", con->number); |
f7deaa1a | 803 | |
804 | if (context != GSS_C_NO_CONTEXT) | |
805 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
f7deaa1a | 806 | return; |
807 | } | |
808 | ||
97c9a8d7 MS |
809 | con->have_gss = 1; |
810 | ||
76cd9e37 MS |
811 | /* |
812 | * Get the username associated with the client's credentials... | |
f7deaa1a | 813 | */ |
814 | ||
355e94dc | 815 | if (major_status == GSS_S_CONTINUE_NEEDED) |
ffe32673 | 816 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Credentials not complete.", con->number); |
355e94dc | 817 | else if (major_status == GSS_S_COMPLETE) |
f7deaa1a | 818 | { |
c8fef167 | 819 | major_status = gss_display_name(&minor_status, client_name, |
f7deaa1a | 820 | &output_token, NULL); |
821 | ||
822 | if (GSS_ERROR(major_status)) | |
823 | { | |
ffe32673 | 824 | cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status, "[Client %d] Error getting username.", con->number); |
f7deaa1a | 825 | gss_release_name(&minor_status, &client_name); |
826 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
f7deaa1a | 827 | return; |
828 | } | |
829 | ||
f7deaa1a | 830 | strlcpy(username, output_token.value, sizeof(username)); |
355e94dc | 831 | |
ffe32673 | 832 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Authorized as \"%s\" using Negotiate.", username); |
f7deaa1a | 833 | |
e07d4801 | 834 | gss_release_name(&minor_status, &client_name); |
f7deaa1a | 835 | gss_release_buffer(&minor_status, &output_token); |
2fb76298 | 836 | |
5bd77a73 | 837 | con->type = CUPSD_AUTH_NEGOTIATE; |
f7deaa1a | 838 | } |
e07d4801 MS |
839 | |
840 | gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER); | |
07ed0e9a MS |
841 | |
842 | # if defined(SO_PEERCRED) && defined(AF_LOCAL) | |
843 | /* | |
844 | * Get the client's UID if we are printing locally - that allows a backend | |
845 | * to run as the correct user to get Kerberos credentials of its own. | |
846 | */ | |
847 | ||
5ec1fd3d | 848 | if (httpAddrFamily(con->http->hostaddr) == AF_LOCAL) |
07ed0e9a MS |
849 | { |
850 | cupsd_ucred_t peercred; /* Peer credentials */ | |
851 | socklen_t peersize; /* Size of peer credentials */ | |
852 | ||
853 | peersize = sizeof(peercred); | |
854 | ||
855 | # ifdef __APPLE__ | |
996acce8 | 856 | if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize)) |
07ed0e9a | 857 | # else |
996acce8 | 858 | if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, |
07ed0e9a MS |
859 | &peersize)) |
860 | # endif /* __APPLE__ */ | |
861 | { | |
ffe32673 | 862 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get peer credentials - %s", strerror(errno)); |
07ed0e9a MS |
863 | } |
864 | else | |
865 | { | |
ffe32673 | 866 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Using credentials for UID %d.", CUPSD_UCRED_UID(peercred)); |
07ed0e9a MS |
867 | con->gss_uid = CUPSD_UCRED_UID(peercred); |
868 | } | |
869 | } | |
870 | # endif /* SO_PEERCRED && AF_LOCAL */ | |
f7deaa1a | 871 | } |
872 | #endif /* HAVE_GSSAPI */ | |
2fb76298 | 873 | else |
ef416fc2 | 874 | { |
355e94dc | 875 | char scheme[256]; /* Auth scheme... */ |
355e94dc MS |
876 | |
877 | ||
878 | if (sscanf(authorization, "%255s", scheme) != 1) | |
5a9febac | 879 | strlcpy(scheme, "UNKNOWN", sizeof(scheme)); |
355e94dc | 880 | |
ffe32673 | 881 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Bad authentication data \"%s ...\".", scheme); |
ef416fc2 | 882 | return; |
883 | } | |
884 | ||
885 | /* | |
886 | * If we get here, then we were able to validate the username and | |
887 | * password - copy the validated username and password to the client | |
888 | * data and return... | |
889 | */ | |
890 | ||
891 | strlcpy(con->username, username, sizeof(con->username)); | |
892 | strlcpy(con->password, password, sizeof(con->password)); | |
ef416fc2 | 893 | } |
894 | ||
895 | ||
080811b1 MS |
896 | /* |
897 | * 'cupsdCheckAccess()' - Check whether the given address is allowed to | |
898 | * access a location. | |
899 | */ | |
900 | ||
901 | int /* O - 1 if allowed, 0 otherwise */ | |
902 | cupsdCheckAccess( | |
903 | unsigned ip[4], /* I - Client address */ | |
5ec1fd3d | 904 | const char *name, /* I - Client hostname */ |
7e86f2f6 | 905 | size_t namelen, /* I - Length of hostname */ |
080811b1 MS |
906 | cupsd_location_t *loc) /* I - Location to check */ |
907 | { | |
908 | int allow; /* 1 if allowed, 0 otherwise */ | |
909 | ||
910 | ||
88f9aafc | 911 | if (!_cups_strcasecmp(name, "localhost")) |
080811b1 MS |
912 | { |
913 | /* | |
914 | * Access from localhost (127.0.0.1 or ::1) is always allowed... | |
915 | */ | |
916 | ||
917 | return (1); | |
918 | } | |
919 | else | |
920 | { | |
921 | /* | |
922 | * Do authorization checks on the domain/address... | |
923 | */ | |
924 | ||
925 | switch (loc->order_type) | |
926 | { | |
927 | default : | |
928 | allow = 0; /* anti-compiler-warning-code */ | |
929 | break; | |
930 | ||
5bd77a73 | 931 | case CUPSD_AUTH_ALLOW : /* Order Deny,Allow */ |
080811b1 MS |
932 | allow = 1; |
933 | ||
10d09e33 | 934 | if (cupsdCheckAuth(ip, name, namelen, loc->deny)) |
080811b1 MS |
935 | allow = 0; |
936 | ||
10d09e33 | 937 | if (cupsdCheckAuth(ip, name, namelen, loc->allow)) |
080811b1 MS |
938 | allow = 1; |
939 | break; | |
940 | ||
5bd77a73 | 941 | case CUPSD_AUTH_DENY : /* Order Allow,Deny */ |
080811b1 MS |
942 | allow = 0; |
943 | ||
10d09e33 | 944 | if (cupsdCheckAuth(ip, name, namelen, loc->allow)) |
080811b1 MS |
945 | allow = 1; |
946 | ||
10d09e33 | 947 | if (cupsdCheckAuth(ip, name, namelen, loc->deny)) |
080811b1 MS |
948 | allow = 0; |
949 | break; | |
950 | } | |
951 | } | |
952 | ||
953 | return (allow); | |
954 | } | |
955 | ||
956 | ||
ef416fc2 | 957 | /* |
958 | * 'cupsdCheckAuth()' - Check authorization masks. | |
959 | */ | |
960 | ||
961 | int /* O - 1 if mask matches, 0 otherwise */ | |
10d09e33 | 962 | cupsdCheckAuth(unsigned ip[4], /* I - Client address */ |
5ec1fd3d | 963 | const char *name, /* I - Client hostname */ |
7e86f2f6 | 964 | size_t name_len, /* I - Length of hostname */ |
10d09e33 | 965 | cups_array_t *masks) /* I - Masks */ |
ef416fc2 | 966 | { |
10d09e33 MS |
967 | int i; /* Looping var */ |
968 | cupsd_authmask_t *mask; /* Current mask */ | |
969 | cupsd_netif_t *iface; /* Network interface */ | |
970 | unsigned netip4; /* IPv4 network address */ | |
ef416fc2 | 971 | #ifdef AF_INET6 |
10d09e33 | 972 | unsigned netip6[4]; /* IPv6 network address */ |
ef416fc2 | 973 | #endif /* AF_INET6 */ |
974 | ||
e07d4801 | 975 | |
10d09e33 MS |
976 | for (mask = (cupsd_authmask_t *)cupsArrayFirst(masks); |
977 | mask; | |
978 | mask = (cupsd_authmask_t *)cupsArrayNext(masks)) | |
ef416fc2 | 979 | { |
10d09e33 | 980 | switch (mask->type) |
ef416fc2 | 981 | { |
5bd77a73 | 982 | case CUPSD_AUTH_INTERFACE : |
ef416fc2 | 983 | /* |
984 | * Check for a match with a network interface... | |
985 | */ | |
986 | ||
987 | netip4 = htonl(ip[3]); | |
988 | ||
989 | #ifdef AF_INET6 | |
990 | netip6[0] = htonl(ip[0]); | |
991 | netip6[1] = htonl(ip[1]); | |
992 | netip6[2] = htonl(ip[2]); | |
993 | netip6[3] = htonl(ip[3]); | |
994 | #endif /* AF_INET6 */ | |
995 | ||
84ec3a84 MS |
996 | cupsdNetIFUpdate(); |
997 | ||
10d09e33 | 998 | if (!strcmp(mask->mask.name.name, "*")) |
ef416fc2 | 999 | { |
e07d4801 MS |
1000 | #ifdef __APPLE__ |
1001 | /* | |
1002 | * Allow Back-to-My-Mac addresses... | |
1003 | */ | |
1004 | ||
1005 | if ((ip[0] & 0xff000000) == 0xfd000000) | |
1006 | return (1); | |
1007 | #endif /* __APPLE__ */ | |
1008 | ||
ef416fc2 | 1009 | /* |
1010 | * Check against all local interfaces... | |
1011 | */ | |
1012 | ||
e00b005a | 1013 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
1014 | iface; | |
1015 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) | |
ef416fc2 | 1016 | { |
1017 | /* | |
1018 | * Only check local interfaces... | |
1019 | */ | |
1020 | ||
1021 | if (!iface->is_local) | |
1022 | continue; | |
1023 | ||
1024 | if (iface->address.addr.sa_family == AF_INET) | |
1025 | { | |
1026 | /* | |
1027 | * Check IPv4 address... | |
1028 | */ | |
1029 | ||
1030 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1031 | (iface->address.ipv4.sin_addr.s_addr & | |
1032 | iface->mask.ipv4.sin_addr.s_addr)) | |
1033 | return (1); | |
1034 | } | |
1035 | #ifdef AF_INET6 | |
1036 | else | |
1037 | { | |
1038 | /* | |
1039 | * Check IPv6 address... | |
1040 | */ | |
1041 | ||
1042 | for (i = 0; i < 4; i ++) | |
1043 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1044 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1045 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1046 | break; | |
1047 | ||
1048 | if (i == 4) | |
1049 | return (1); | |
1050 | } | |
1051 | #endif /* AF_INET6 */ | |
1052 | } | |
1053 | } | |
1054 | else | |
1055 | { | |
1056 | /* | |
1057 | * Check the named interface... | |
1058 | */ | |
1059 | ||
e00b005a | 1060 | for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList); |
ed486911 | 1061 | iface; |
e00b005a | 1062 | iface = (cupsd_netif_t *)cupsArrayNext(NetIFList)) |
ef416fc2 | 1063 | { |
10d09e33 | 1064 | if (strcmp(mask->mask.name.name, iface->name)) |
ed486911 | 1065 | continue; |
1066 | ||
ef416fc2 | 1067 | if (iface->address.addr.sa_family == AF_INET) |
1068 | { | |
1069 | /* | |
1070 | * Check IPv4 address... | |
1071 | */ | |
1072 | ||
1073 | if ((netip4 & iface->mask.ipv4.sin_addr.s_addr) == | |
1074 | (iface->address.ipv4.sin_addr.s_addr & | |
1075 | iface->mask.ipv4.sin_addr.s_addr)) | |
1076 | return (1); | |
1077 | } | |
1078 | #ifdef AF_INET6 | |
1079 | else | |
1080 | { | |
1081 | /* | |
1082 | * Check IPv6 address... | |
1083 | */ | |
1084 | ||
1085 | for (i = 0; i < 4; i ++) | |
1086 | if ((netip6[i] & iface->mask.ipv6.sin6_addr.s6_addr32[i]) != | |
1087 | (iface->address.ipv6.sin6_addr.s6_addr32[i] & | |
1088 | iface->mask.ipv6.sin6_addr.s6_addr32[i])) | |
1089 | break; | |
1090 | ||
1091 | if (i == 4) | |
1092 | return (1); | |
1093 | } | |
1094 | #endif /* AF_INET6 */ | |
1095 | } | |
1096 | } | |
1097 | break; | |
1098 | ||
5bd77a73 | 1099 | case CUPSD_AUTH_NAME : |
ef416fc2 | 1100 | /* |
1101 | * Check for exact name match... | |
1102 | */ | |
1103 | ||
88f9aafc | 1104 | if (!_cups_strcasecmp(name, mask->mask.name.name)) |
ef416fc2 | 1105 | return (1); |
1106 | ||
1107 | /* | |
1108 | * Check for domain match... | |
1109 | */ | |
1110 | ||
10d09e33 MS |
1111 | if (name_len >= mask->mask.name.length && |
1112 | mask->mask.name.name[0] == '.' && | |
88f9aafc | 1113 | !_cups_strcasecmp(name + name_len - mask->mask.name.length, |
10d09e33 | 1114 | mask->mask.name.name)) |
ef416fc2 | 1115 | return (1); |
1116 | break; | |
1117 | ||
5bd77a73 | 1118 | case CUPSD_AUTH_IP : |
ef416fc2 | 1119 | /* |
1120 | * Check for IP/network address match... | |
1121 | */ | |
1122 | ||
1123 | for (i = 0; i < 4; i ++) | |
10d09e33 MS |
1124 | if ((ip[i] & mask->mask.ip.netmask[i]) != |
1125 | mask->mask.ip.address[i]) | |
ef416fc2 | 1126 | break; |
1127 | ||
1128 | if (i == 4) | |
1129 | return (1); | |
1130 | break; | |
1131 | } | |
ef416fc2 | 1132 | } |
1133 | ||
1134 | return (0); | |
1135 | } | |
1136 | ||
1137 | ||
1138 | /* | |
1139 | * 'cupsdCheckGroup()' - Check for a user's group membership. | |
1140 | */ | |
1141 | ||
1142 | int /* O - 1 if user is a member, 0 otherwise */ | |
1143 | cupsdCheckGroup( | |
1144 | const char *username, /* I - User name */ | |
1145 | struct passwd *user, /* I - System user info */ | |
1146 | const char *groupname) /* I - Group name */ | |
1147 | { | |
8922323b MS |
1148 | int i; /* Looping var */ |
1149 | struct group *group; /* System group info */ | |
bd7854cb | 1150 | #ifdef HAVE_MBR_UID_TO_UUID |
8922323b MS |
1151 | uuid_t useruuid, /* UUID for username */ |
1152 | groupuuid; /* UUID for groupname */ | |
1153 | int is_member; /* True if user is a member of group */ | |
bd7854cb | 1154 | #endif /* HAVE_MBR_UID_TO_UUID */ |
ef416fc2 | 1155 | |
1156 | ||
ffe32673 | 1157 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdCheckGroup(username=\"%s\", user=%p, groupname=\"%s\")", username, user, groupname); |
ef416fc2 | 1158 | |
1159 | /* | |
1160 | * Validate input... | |
1161 | */ | |
1162 | ||
1163 | if (!username || !groupname) | |
1164 | return (0); | |
1165 | ||
1166 | /* | |
1167 | * Check to see if the user is a member of the named group... | |
1168 | */ | |
1169 | ||
1170 | group = getgrnam(groupname); | |
1171 | endgrent(); | |
1172 | ||
1173 | if (group != NULL) | |
1174 | { | |
1175 | /* | |
1176 | * Group exists, check it... | |
1177 | */ | |
1178 | ||
6eb98aee MS |
1179 | #ifdef HAVE_GETGROUPLIST |
1180 | if (user) | |
1181 | { | |
1182 | int ngroups, /* Number of groups */ | |
1183 | groups[2048]; /* Groups that user belongs to */ | |
1184 | ||
1185 | ngroups = (int)(sizeof(groups) / sizeof(groups[0])); | |
1186 | getgrouplist(username, (int)user->pw_gid, groups, &ngroups); | |
1187 | ||
1188 | for (i = 0; i < ngroups; i ++) | |
1189 | if ((int)group->gr_gid == groups[i]) | |
1190 | return (1); | |
1191 | } | |
1192 | #endif /* HAVE_GETGROUPLIST */ | |
1193 | ||
ef416fc2 | 1194 | for (i = 0; group->gr_mem[i]; i ++) |
88f9aafc | 1195 | if (!_cups_strcasecmp(username, group->gr_mem[i])) |
ef416fc2 | 1196 | return (1); |
1197 | } | |
1198 | ||
1199 | /* | |
1200 | * Group doesn't exist or user not in group list, check the group ID | |
1201 | * against the user's group ID... | |
1202 | */ | |
1203 | ||
1204 | if (user && group && group->gr_gid == user->pw_gid) | |
1205 | return (1); | |
1206 | ||
bd7854cb | 1207 | #ifdef HAVE_MBR_UID_TO_UUID |
1208 | /* | |
8072030b | 1209 | * Check group membership through MacmacOS membership API... |
bd7854cb | 1210 | */ |
1211 | ||
dd1abb6b | 1212 | if (user && !mbr_uid_to_uuid(user->pw_uid, useruuid)) |
c9fc04c6 | 1213 | { |
8922323b MS |
1214 | if (group) |
1215 | { | |
1216 | /* | |
1217 | * Map group name to UUID and check membership... | |
1218 | */ | |
c9fc04c6 | 1219 | |
8922323b MS |
1220 | if (!mbr_gid_to_uuid(group->gr_gid, groupuuid)) |
1221 | if (!mbr_check_membership(useruuid, groupuuid, &is_member)) | |
1222 | if (is_member) | |
1223 | return (1); | |
1224 | } | |
1225 | else if (groupname[0] == '#') | |
1226 | { | |
1227 | /* | |
1228 | * Use UUID directly and check for equality (user UUID) and | |
1229 | * membership (group UUID)... | |
1230 | */ | |
1231 | ||
1232 | if (!uuid_parse((char *)groupname + 1, groupuuid)) | |
1233 | { | |
1234 | if (!uuid_compare(useruuid, groupuuid)) | |
c9fc04c6 | 1235 | return (1); |
8922323b MS |
1236 | else if (!mbr_check_membership(useruuid, groupuuid, &is_member)) |
1237 | if (is_member) | |
1238 | return (1); | |
1239 | } | |
1240 | ||
1241 | return (0); | |
1242 | } | |
1243 | } | |
1244 | else if (groupname[0] == '#') | |
1245 | return (0); | |
bd7854cb | 1246 | #endif /* HAVE_MBR_UID_TO_UUID */ |
1247 | ||
ef416fc2 | 1248 | /* |
1249 | * If we get this far, then the user isn't part of the named group... | |
1250 | */ | |
1251 | ||
1252 | return (0); | |
1253 | } | |
1254 | ||
1255 | ||
1256 | /* | |
1257 | * 'cupsdCopyLocation()' - Make a copy of a location... | |
1258 | */ | |
1259 | ||
1260 | cupsd_location_t * /* O - New location */ | |
1261 | cupsdCopyLocation( | |
10d09e33 | 1262 | cupsd_location_t *loc) /* I - Original location */ |
ef416fc2 | 1263 | { |
ef416fc2 | 1264 | cupsd_location_t *temp; /* New location */ |
ef416fc2 | 1265 | |
1266 | ||
ef416fc2 | 1267 | /* |
10d09e33 | 1268 | * Make a copy of the original location... |
ef416fc2 | 1269 | */ |
1270 | ||
10d09e33 | 1271 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) |
ef416fc2 | 1272 | return (NULL); |
1273 | ||
ef416fc2 | 1274 | /* |
1275 | * Copy the information from the original location to the new one. | |
1276 | */ | |
1277 | ||
10d09e33 MS |
1278 | if (!loc) |
1279 | return (temp); | |
ef416fc2 | 1280 | |
10d09e33 MS |
1281 | if (loc->location) |
1282 | temp->location = _cupsStrAlloc(loc->location); | |
ef416fc2 | 1283 | |
d2ff4622 | 1284 | temp->length = loc->length; |
10d09e33 MS |
1285 | temp->limit = loc->limit; |
1286 | temp->order_type = loc->order_type; | |
1287 | temp->type = loc->type; | |
1288 | temp->level = loc->level; | |
1289 | temp->satisfy = loc->satisfy; | |
1290 | temp->encryption = loc->encryption; | |
1291 | ||
1292 | if (loc->names) | |
1293 | { | |
1294 | if ((temp->names = cupsArrayDup(loc->names)) == NULL) | |
ef416fc2 | 1295 | { |
1296 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1297 | "Unable to allocate memory for %d names: %s", |
1298 | cupsArrayCount(loc->names), strerror(errno)); | |
bd7854cb | 1299 | |
10d09e33 | 1300 | cupsdFreeLocation(temp); |
ef416fc2 | 1301 | return (NULL); |
1302 | } | |
ef416fc2 | 1303 | } |
1304 | ||
10d09e33 | 1305 | if (loc->allow) |
ef416fc2 | 1306 | { |
1307 | /* | |
1308 | * Copy allow rules... | |
1309 | */ | |
1310 | ||
10d09e33 | 1311 | if ((temp->allow = cupsArrayDup(loc->allow)) == NULL) |
ef416fc2 | 1312 | { |
1313 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1314 | "Unable to allocate memory for %d allow rules: %s", |
1315 | cupsArrayCount(loc->allow), strerror(errno)); | |
1316 | cupsdFreeLocation(temp); | |
ef416fc2 | 1317 | return (NULL); |
1318 | } | |
ef416fc2 | 1319 | } |
1320 | ||
10d09e33 | 1321 | if (loc->deny) |
ef416fc2 | 1322 | { |
1323 | /* | |
1324 | * Copy deny rules... | |
1325 | */ | |
1326 | ||
10d09e33 | 1327 | if ((temp->deny = cupsArrayDup(loc->deny)) == NULL) |
ef416fc2 | 1328 | { |
1329 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
10d09e33 MS |
1330 | "Unable to allocate memory for %d deny rules: %s", |
1331 | cupsArrayCount(loc->deny), strerror(errno)); | |
1332 | cupsdFreeLocation(temp); | |
ef416fc2 | 1333 | return (NULL); |
1334 | } | |
ef416fc2 | 1335 | } |
1336 | ||
1337 | return (temp); | |
1338 | } | |
1339 | ||
1340 | ||
1341 | /* | |
1342 | * 'cupsdDeleteAllLocations()' - Free all memory used for location authorization. | |
1343 | */ | |
1344 | ||
1345 | void | |
1346 | cupsdDeleteAllLocations(void) | |
1347 | { | |
ef416fc2 | 1348 | /* |
10d09e33 | 1349 | * Free the location array, which will free all of the locations... |
ef416fc2 | 1350 | */ |
1351 | ||
bd7854cb | 1352 | cupsArrayDelete(Locations); |
1353 | Locations = NULL; | |
ef416fc2 | 1354 | } |
1355 | ||
1356 | ||
ef416fc2 | 1357 | /* |
1358 | * 'cupsdFindBest()' - Find the location entry that best matches the resource. | |
1359 | */ | |
1360 | ||
1361 | cupsd_location_t * /* O - Location that matches */ | |
1362 | cupsdFindBest(const char *path, /* I - Resource path */ | |
1363 | http_state_t state) /* I - HTTP state/request */ | |
1364 | { | |
ef416fc2 | 1365 | char uri[HTTP_MAX_URI], |
1366 | /* URI in request... */ | |
1367 | *uriptr; /* Pointer into URI */ | |
1368 | cupsd_location_t *loc, /* Current location */ | |
1369 | *best; /* Best match for location so far */ | |
7e86f2f6 | 1370 | size_t bestlen; /* Length of best match */ |
ef416fc2 | 1371 | int limit; /* Limit field */ |
5bd77a73 | 1372 | static const int limits[] = /* Map http_status_t to CUPSD_AUTH_LIMIT_xyz */ |
ef416fc2 | 1373 | { |
5bd77a73 MS |
1374 | CUPSD_AUTH_LIMIT_ALL, |
1375 | CUPSD_AUTH_LIMIT_OPTIONS, | |
1376 | CUPSD_AUTH_LIMIT_GET, | |
1377 | CUPSD_AUTH_LIMIT_GET, | |
1378 | CUPSD_AUTH_LIMIT_HEAD, | |
1379 | CUPSD_AUTH_LIMIT_POST, | |
1380 | CUPSD_AUTH_LIMIT_POST, | |
1381 | CUPSD_AUTH_LIMIT_POST, | |
1382 | CUPSD_AUTH_LIMIT_PUT, | |
1383 | CUPSD_AUTH_LIMIT_PUT, | |
1384 | CUPSD_AUTH_LIMIT_DELETE, | |
1385 | CUPSD_AUTH_LIMIT_TRACE, | |
1386 | CUPSD_AUTH_LIMIT_ALL, | |
d2ff4622 MS |
1387 | CUPSD_AUTH_LIMIT_ALL, |
1388 | CUPSD_AUTH_LIMIT_ALL, | |
5bd77a73 | 1389 | CUPSD_AUTH_LIMIT_ALL |
ef416fc2 | 1390 | }; |
1391 | ||
1392 | ||
1393 | /* | |
1394 | * First copy the connection URI to a local string so we have drop | |
1395 | * any .ppd extension from the pathname in /printers or /classes | |
1396 | * URIs... | |
1397 | */ | |
1398 | ||
1399 | strlcpy(uri, path, sizeof(uri)); | |
1400 | ||
c26ceab0 MS |
1401 | if ((uriptr = strchr(uri, '?')) != NULL) |
1402 | *uriptr = '\0'; /* Drop trailing query string */ | |
1403 | ||
1404 | if ((uriptr = uri + strlen(uri) - 1) > uri && *uriptr == '/') | |
1405 | *uriptr = '\0'; /* Remove trailing '/' */ | |
1406 | ||
ef416fc2 | 1407 | if (!strncmp(uri, "/printers/", 10) || |
1408 | !strncmp(uri, "/classes/", 9)) | |
1409 | { | |
1410 | /* | |
1411 | * Check if the URI has .ppd on the end... | |
1412 | */ | |
1413 | ||
1414 | uriptr = uri + strlen(uri) - 4; /* len > 4 if we get here... */ | |
1415 | ||
1416 | if (!strcmp(uriptr, ".ppd")) | |
1417 | *uriptr = '\0'; | |
1418 | } | |
1419 | ||
ef416fc2 | 1420 | /* |
1421 | * Loop through the list of locations to find a match... | |
1422 | */ | |
1423 | ||
1424 | limit = limits[state]; | |
1425 | best = NULL; | |
1426 | bestlen = 0; | |
1427 | ||
ffe32673 | 1428 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: uri=\"%s\", limit=%x...", uri, limit); |
d2ff4622 MS |
1429 | |
1430 | ||
bd7854cb | 1431 | for (loc = (cupsd_location_t *)cupsArrayFirst(Locations); |
1432 | loc; | |
1433 | loc = (cupsd_location_t *)cupsArrayNext(Locations)) | |
ef416fc2 | 1434 | { |
d2ff4622 | 1435 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: Location %s(%d) Limit %x", loc->location ? loc->location : "(null)", (int)loc->length, loc->limit); |
ef416fc2 | 1436 | |
1437 | if (!strncmp(uri, "/printers/", 10) || !strncmp(uri, "/classes/", 9)) | |
1438 | { | |
1439 | /* | |
1440 | * Use case-insensitive comparison for queue names... | |
1441 | */ | |
1442 | ||
e1d6a774 | 1443 | if (loc->length > bestlen && loc->location && |
88f9aafc | 1444 | !_cups_strncasecmp(uri, loc->location, loc->length) && |
ef416fc2 | 1445 | loc->location[0] == '/' && |
1446 | (limit & loc->limit) != 0) | |
1447 | { | |
1448 | best = loc; | |
1449 | bestlen = loc->length; | |
1450 | } | |
1451 | } | |
1452 | else | |
1453 | { | |
1454 | /* | |
1455 | * Use case-sensitive comparison for other URIs... | |
1456 | */ | |
1457 | ||
e1d6a774 | 1458 | if (loc->length > bestlen && loc->location && |
ef416fc2 | 1459 | !strncmp(uri, loc->location, loc->length) && |
1460 | loc->location[0] == '/' && | |
1461 | (limit & loc->limit) != 0) | |
1462 | { | |
1463 | best = loc; | |
1464 | bestlen = loc->length; | |
1465 | } | |
1466 | } | |
1467 | } | |
1468 | ||
1469 | /* | |
1470 | * Return the match, if any... | |
1471 | */ | |
1472 | ||
ffe32673 | 1473 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: best=%s", best ? best->location : "NONE"); |
ef416fc2 | 1474 | |
1475 | return (best); | |
1476 | } | |
1477 | ||
1478 | ||
1479 | /* | |
1480 | * 'cupsdFindLocation()' - Find the named location. | |
1481 | */ | |
1482 | ||
1483 | cupsd_location_t * /* O - Location that matches */ | |
1484 | cupsdFindLocation(const char *location) /* I - Connection */ | |
1485 | { | |
bd7854cb | 1486 | cupsd_location_t key; /* Search key */ |
ef416fc2 | 1487 | |
1488 | ||
bd7854cb | 1489 | key.location = (char *)location; |
ef416fc2 | 1490 | |
bd7854cb | 1491 | return ((cupsd_location_t *)cupsArrayFind(Locations, &key)); |
ef416fc2 | 1492 | } |
1493 | ||
1494 | ||
10d09e33 MS |
1495 | /* |
1496 | * 'cupsdFreeLocation()' - Free all memory used by a location. | |
1497 | */ | |
1498 | ||
1499 | void | |
1500 | cupsdFreeLocation(cupsd_location_t *loc)/* I - Location to free */ | |
1501 | { | |
1502 | cupsArrayDelete(loc->names); | |
1503 | cupsArrayDelete(loc->allow); | |
1504 | cupsArrayDelete(loc->deny); | |
1505 | ||
1506 | _cupsStrFree(loc->location); | |
1507 | free(loc); | |
1508 | } | |
1509 | ||
1510 | ||
ef416fc2 | 1511 | /* |
1512 | * 'cupsdIsAuthorized()' - Check to see if the user is authorized... | |
1513 | */ | |
1514 | ||
1515 | http_status_t /* O - HTTP_OK if authorized or error code */ | |
1516 | cupsdIsAuthorized(cupsd_client_t *con, /* I - Connection */ | |
1517 | const char *owner)/* I - Owner of object */ | |
1518 | { | |
10d09e33 | 1519 | int i, /* Looping vars */ |
2fb76298 MS |
1520 | auth, /* Authorization status */ |
1521 | type; /* Type of authentication */ | |
5ec1fd3d MS |
1522 | http_addr_t *hostaddr = httpGetAddress(con->http); |
1523 | /* Client address */ | |
1524 | const char *hostname = httpGetHostname(con->http, NULL, 0); | |
1525 | /* Client hostname */ | |
ef416fc2 | 1526 | unsigned address[4]; /* Authorization address */ |
1527 | cupsd_location_t *best; /* Best match for location so far */ | |
7e86f2f6 | 1528 | size_t hostlen; /* Length of hostname */ |
10d09e33 MS |
1529 | char *name, /* Current username */ |
1530 | username[256], /* Username to authorize */ | |
db1f069b MS |
1531 | ownername[256], /* Owner name to authorize */ |
1532 | *ptr; /* Pointer into username */ | |
ef416fc2 | 1533 | struct passwd *pw; /* User password data */ |
1534 | static const char * const levels[] = /* Auth levels */ | |
1535 | { | |
1536 | "ANON", | |
1537 | "USER", | |
1538 | "GROUP" | |
1539 | }; | |
1540 | static const char * const types[] = /* Auth types */ | |
1541 | { | |
2fb76298 MS |
1542 | "None", |
1543 | "Basic", | |
2fb76298 | 1544 | "Negotiate" |
ef416fc2 | 1545 | }; |
1546 | ||
1547 | ||
ffe32673 | 1548 | 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 | 1549 | if (owner) |
ffe32673 | 1550 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: owner=\"%s\"", owner); |
ef416fc2 | 1551 | |
1552 | /* | |
1553 | * If there is no "best" authentication rule for this request, then | |
1554 | * access is allowed from the local system and denied from other | |
1555 | * addresses... | |
1556 | */ | |
1557 | ||
1558 | if (!con->best) | |
1559 | { | |
5ec1fd3d MS |
1560 | if (httpAddrLocalhost(httpGetAddress(con->http)) || |
1561 | !strcmp(hostname, ServerName) || | |
1562 | cupsArrayFind(ServerAlias, (void *)hostname)) | |
ef416fc2 | 1563 | return (HTTP_OK); |
1564 | else | |
1565 | return (HTTP_FORBIDDEN); | |
1566 | } | |
1567 | ||
1568 | best = con->best; | |
1569 | ||
5bd77a73 | 1570 | if ((type = best->type) == CUPSD_AUTH_DEFAULT) |
dcb445bc | 1571 | type = cupsdDefaultAuthType(); |
2fb76298 | 1572 | |
ffe32673 | 1573 | 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 | 1574 | |
5bd77a73 | 1575 | if (best->limit == CUPSD_AUTH_LIMIT_IPP) |
ffe32673 | 1576 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: op=%x(%s)", best->op, ippOpString(best->op)); |
ef416fc2 | 1577 | |
1578 | /* | |
1579 | * Check host/ip-based accesses... | |
1580 | */ | |
1581 | ||
1582 | #ifdef AF_INET6 | |
5ec1fd3d | 1583 | if (httpAddrFamily(hostaddr) == AF_INET6) |
ef416fc2 | 1584 | { |
1585 | /* | |
1586 | * Copy IPv6 address... | |
1587 | */ | |
1588 | ||
5ec1fd3d MS |
1589 | address[0] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[0]); |
1590 | address[1] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[1]); | |
1591 | address[2] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[2]); | |
1592 | address[3] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[3]); | |
ef416fc2 | 1593 | } |
1594 | else | |
1595 | #endif /* AF_INET6 */ | |
996acce8 | 1596 | if (con->http->hostaddr->addr.sa_family == AF_INET) |
ef416fc2 | 1597 | { |
1598 | /* | |
1599 | * Copy IPv4 address... | |
1600 | */ | |
1601 | ||
1602 | address[0] = 0; | |
1603 | address[1] = 0; | |
1604 | address[2] = 0; | |
5ec1fd3d | 1605 | address[3] = ntohl(hostaddr->ipv4.sin_addr.s_addr); |
ef416fc2 | 1606 | } |
1607 | else | |
1608 | memset(address, 0, sizeof(address)); | |
1609 | ||
5ec1fd3d | 1610 | hostlen = strlen(hostname); |
ef416fc2 | 1611 | |
5ec1fd3d | 1612 | auth = cupsdCheckAccess(address, hostname, hostlen, best) |
5bd77a73 | 1613 | ? CUPSD_AUTH_ALLOW : CUPSD_AUTH_DENY; |
ef416fc2 | 1614 | |
ffe32673 | 1615 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: auth=CUPSD_AUTH_%s...", auth ? "DENY" : "ALLOW"); |
ef416fc2 | 1616 | |
5bd77a73 | 1617 | if (auth == CUPSD_AUTH_DENY && best->satisfy == CUPSD_AUTH_SATISFY_ALL) |
ef416fc2 | 1618 | return (HTTP_FORBIDDEN); |
1619 | ||
1620 | #ifdef HAVE_SSL | |
1621 | /* | |
1622 | * See if encryption is required... | |
1623 | */ | |
1624 | ||
996acce8 | 1625 | if ((best->encryption >= HTTP_ENCRYPT_REQUIRED && !con->http->tls && |
5ec1fd3d MS |
1626 | _cups_strcasecmp(hostname, "localhost") && |
1627 | !httpAddrLocalhost(hostaddr) && | |
5bd77a73 | 1628 | best->satisfy == CUPSD_AUTH_SATISFY_ALL) && |
c8fef167 | 1629 | !(type == CUPSD_AUTH_NEGOTIATE || |
dcb445bc MS |
1630 | (type == CUPSD_AUTH_NONE && |
1631 | cupsdDefaultAuthType() == CUPSD_AUTH_NEGOTIATE))) | |
ef416fc2 | 1632 | { |
355e94dc | 1633 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
ef416fc2 | 1634 | "cupsdIsAuthorized: Need upgrade to TLS..."); |
1635 | return (HTTP_UPGRADE_REQUIRED); | |
1636 | } | |
1637 | #endif /* HAVE_SSL */ | |
1638 | ||
1639 | /* | |
1640 | * Now see what access level is required... | |
1641 | */ | |
1642 | ||
5bd77a73 | 1643 | if (best->level == CUPSD_AUTH_ANON || /* Anonymous access - allow it */ |
10d09e33 | 1644 | (type == CUPSD_AUTH_NONE && cupsArrayCount(best->names) == 0)) |
ef416fc2 | 1645 | return (HTTP_OK); |
1646 | ||
5bd77a73 MS |
1647 | if (!con->username[0] && type == CUPSD_AUTH_NONE && |
1648 | best->limit == CUPSD_AUTH_LIMIT_IPP) | |
ef416fc2 | 1649 | { |
1650 | /* | |
1651 | * Check for unauthenticated username... | |
1652 | */ | |
1653 | ||
1654 | ipp_attribute_t *attr; /* requesting-user-name attribute */ | |
1655 | ||
1656 | ||
1657 | attr = ippFindAttribute(con->request, "requesting-user-name", IPP_TAG_NAME); | |
1658 | if (attr) | |
1659 | { | |
355e94dc | 1660 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
ef416fc2 | 1661 | "cupsdIsAuthorized: requesting-user-name=\"%s\"", |
1662 | attr->values[0].string.text); | |
db1f069b | 1663 | strlcpy(username, attr->values[0].string.text, sizeof(username)); |
ef416fc2 | 1664 | } |
5bd77a73 | 1665 | else if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY) |
ef416fc2 | 1666 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1667 | else | |
1668 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1669 | } | |
fa73b229 | 1670 | else |
1671 | { | |
355e94dc | 1672 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdIsAuthorized: username=\"%s\"", |
fa73b229 | 1673 | con->username); |
1674 | ||
f7deaa1a | 1675 | #ifdef HAVE_AUTHORIZATION_H |
1676 | if (!con->username[0] && !con->authref) | |
1677 | #else | |
fa73b229 | 1678 | if (!con->username[0]) |
f7deaa1a | 1679 | #endif /* HAVE_AUTHORIZATION_H */ |
fa73b229 | 1680 | { |
5bd77a73 | 1681 | if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY) |
fa73b229 | 1682 | return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */ |
1683 | else | |
1684 | return (HTTP_OK); /* unless overridden with Satisfy */ | |
1685 | } | |
1686 | ||
eac3a0a0 | 1687 | |
5bd77a73 | 1688 | if (con->type != type && type != CUPSD_AUTH_NONE && |
eac3a0a0 MS |
1689 | #ifdef HAVE_GSSAPI |
1690 | (type != CUPSD_AUTH_NEGOTIATE || con->gss_uid <= 0) && | |
1691 | #endif /* HAVE_GSSAPI */ | |
e0660879 | 1692 | con->type != CUPSD_AUTH_BASIC) |
2fb76298 | 1693 | { |
e0660879 | 1694 | cupsdLogMessage(CUPSD_LOG_ERROR, "Authorized using %s, expected %s.", |
2fb76298 MS |
1695 | types[con->type], types[type]); |
1696 | ||
1697 | return (HTTP_UNAUTHORIZED); | |
1698 | } | |
1699 | ||
db1f069b | 1700 | strlcpy(username, con->username, sizeof(username)); |
fa73b229 | 1701 | } |
ef416fc2 | 1702 | |
1703 | /* | |
fa73b229 | 1704 | * OK, got a username. See if we need normal user access, or group |
ef416fc2 | 1705 | * access... (root always matches) |
1706 | */ | |
1707 | ||
fa73b229 | 1708 | if (!strcmp(username, "root")) |
ef416fc2 | 1709 | return (HTTP_OK); |
1710 | ||
db1f069b MS |
1711 | /* |
1712 | * Strip any @domain or @KDC from the username and owner... | |
1713 | */ | |
1714 | ||
1715 | if ((ptr = strchr(username, '@')) != NULL) | |
1716 | *ptr = '\0'; | |
1717 | ||
1718 | if (owner) | |
1719 | { | |
1720 | strlcpy(ownername, owner, sizeof(ownername)); | |
1721 | ||
1722 | if ((ptr = strchr(ownername, '@')) != NULL) | |
1723 | *ptr = '\0'; | |
1724 | } | |
1725 | else | |
1726 | ownername[0] = '\0'; | |
1727 | ||
ef416fc2 | 1728 | /* |
1729 | * Get the user info... | |
1730 | */ | |
1731 | ||
f7deaa1a | 1732 | if (username[0]) |
1733 | { | |
1734 | pw = getpwnam(username); | |
1735 | endpwent(); | |
1736 | } | |
1737 | else | |
1738 | pw = NULL; | |
ef416fc2 | 1739 | |
5bd77a73 | 1740 | if (best->level == CUPSD_AUTH_USER) |
ef416fc2 | 1741 | { |
1742 | /* | |
1743 | * If there are no names associated with this location, then | |
1744 | * any valid user is OK... | |
1745 | */ | |
1746 | ||
10d09e33 | 1747 | if (cupsArrayCount(best->names) == 0) |
ef416fc2 | 1748 | return (HTTP_OK); |
1749 | ||
1750 | /* | |
1751 | * Otherwise check the user list and return OK if this user is | |
1752 | * allowed... | |
1753 | */ | |
1754 | ||
ffe32673 | 1755 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking user membership..."); |
ef416fc2 | 1756 | |
f7deaa1a | 1757 | #ifdef HAVE_AUTHORIZATION_H |
1758 | /* | |
1759 | * If an authorization reference was supplied it must match a right name... | |
1760 | */ | |
1761 | ||
1762 | if (con->authref) | |
1763 | { | |
10d09e33 MS |
1764 | for (name = (char *)cupsArrayFirst(best->names); |
1765 | name; | |
1766 | name = (char *)cupsArrayNext(best->names)) | |
f7deaa1a | 1767 | { |
88f9aafc | 1768 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) && check_authref(con, name + 9)) |
f7deaa1a | 1769 | return (HTTP_OK); |
88f9aafc | 1770 | else if (!_cups_strcasecmp(name, "@SYSTEM") && SystemGroupAuthKey && |
f7deaa1a | 1771 | check_authref(con, SystemGroupAuthKey)) |
1772 | return (HTTP_OK); | |
1773 | } | |
1774 | ||
ee571f26 | 1775 | return (HTTP_FORBIDDEN); |
f7deaa1a | 1776 | } |
1777 | #endif /* HAVE_AUTHORIZATION_H */ | |
1778 | ||
10d09e33 MS |
1779 | for (name = (char *)cupsArrayFirst(best->names); |
1780 | name; | |
1781 | name = (char *)cupsArrayNext(best->names)) | |
ef416fc2 | 1782 | { |
88f9aafc MS |
1783 | if (!_cups_strcasecmp(name, "@OWNER") && owner && |
1784 | !_cups_strcasecmp(username, ownername)) | |
ef416fc2 | 1785 | return (HTTP_OK); |
88f9aafc | 1786 | else if (!_cups_strcasecmp(name, "@SYSTEM")) |
ef416fc2 | 1787 | { |
10d09e33 MS |
1788 | for (i = 0; i < NumSystemGroups; i ++) |
1789 | if (cupsdCheckGroup(username, pw, SystemGroups[i])) | |
ef416fc2 | 1790 | return (HTTP_OK); |
1791 | } | |
10d09e33 | 1792 | else if (name[0] == '@') |
ef416fc2 | 1793 | { |
10d09e33 | 1794 | if (cupsdCheckGroup(username, pw, name + 1)) |
ef416fc2 | 1795 | return (HTTP_OK); |
1796 | } | |
88f9aafc | 1797 | else if (!_cups_strcasecmp(username, name)) |
ef416fc2 | 1798 | return (HTTP_OK); |
1799 | } | |
1800 | ||
85dda01c | 1801 | return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED); |
ef416fc2 | 1802 | } |
1803 | ||
1804 | /* | |
1805 | * Check to see if this user is in any of the named groups... | |
1806 | */ | |
1807 | ||
ffe32673 | 1808 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking group membership..."); |
ef416fc2 | 1809 | |
1810 | /* | |
1811 | * Check to see if this user is in any of the named groups... | |
1812 | */ | |
1813 | ||
10d09e33 MS |
1814 | for (name = (char *)cupsArrayFirst(best->names); |
1815 | name; | |
1816 | name = (char *)cupsArrayNext(best->names)) | |
ef416fc2 | 1817 | { |
ffe32673 | 1818 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: Checking group \"%s\" membership...", name); |
ef416fc2 | 1819 | |
88f9aafc | 1820 | if (!_cups_strcasecmp(name, "@SYSTEM")) |
ef416fc2 | 1821 | { |
10d09e33 MS |
1822 | for (i = 0; i < NumSystemGroups; i ++) |
1823 | if (cupsdCheckGroup(username, pw, SystemGroups[i])) | |
ef416fc2 | 1824 | return (HTTP_OK); |
1825 | } | |
10d09e33 | 1826 | else if (cupsdCheckGroup(username, pw, name)) |
ef416fc2 | 1827 | return (HTTP_OK); |
1828 | } | |
1829 | ||
1830 | /* | |
1831 | * The user isn't part of the specified group, so deny access... | |
1832 | */ | |
1833 | ||
ffe32673 | 1834 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdIsAuthorized: User not in group(s)."); |
ef416fc2 | 1835 | |
85dda01c | 1836 | return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED); |
ef416fc2 | 1837 | } |
1838 | ||
1839 | ||
1840 | /* | |
10d09e33 MS |
1841 | * 'cupsdNewLocation()' - Create a new location for authorization. |
1842 | * | |
1843 | * Note: Still need to call cupsdAddLocation() to add it to the list of global | |
1844 | * locations. | |
ef416fc2 | 1845 | */ |
1846 | ||
10d09e33 MS |
1847 | cupsd_location_t * /* O - Pointer to new location record */ |
1848 | cupsdNewLocation(const char *location) /* I - Location path */ | |
ef416fc2 | 1849 | { |
10d09e33 | 1850 | cupsd_location_t *temp; /* New location */ |
ef416fc2 | 1851 | |
1852 | ||
1853 | /* | |
10d09e33 | 1854 | * Try to allocate memory for the new location. |
ef416fc2 | 1855 | */ |
1856 | ||
10d09e33 | 1857 | if ((temp = calloc(1, sizeof(cupsd_location_t))) == NULL) |
ef416fc2 | 1858 | return (NULL); |
1859 | ||
1860 | /* | |
10d09e33 | 1861 | * Initialize the record and copy the name over... |
ef416fc2 | 1862 | */ |
1863 | ||
10d09e33 MS |
1864 | if ((temp->location = _cupsStrAlloc(location)) == NULL) |
1865 | { | |
1866 | free(temp); | |
ef416fc2 | 1867 | return (NULL); |
10d09e33 | 1868 | } |
ef416fc2 | 1869 | |
10d09e33 | 1870 | temp->length = strlen(temp->location); |
ef416fc2 | 1871 | |
1872 | /* | |
10d09e33 | 1873 | * Return the new record... |
ef416fc2 | 1874 | */ |
1875 | ||
ef416fc2 | 1876 | return (temp); |
1877 | } | |
1878 | ||
1879 | ||
f7deaa1a | 1880 | #ifdef HAVE_AUTHORIZATION_H |
1881 | /* | |
1882 | * 'check_authref()' - Check if an authorization services reference has the | |
1883 | * supplied right. | |
1884 | */ | |
1885 | ||
1886 | static int /* O - 1 if right is valid, 0 otherwise */ | |
1887 | check_authref(cupsd_client_t *con, /* I - Connection */ | |
1888 | const char *right) /* I - Right name */ | |
1889 | { | |
1890 | OSStatus status; /* OS Status */ | |
1891 | AuthorizationItem authright; /* Authorization right */ | |
1892 | AuthorizationRights authrights; /* Authorization rights */ | |
1893 | AuthorizationFlags authflags; /* Authorization flags */ | |
1894 | ||
1895 | ||
1896 | /* | |
1897 | * Check to see if the user is allowed to perform the task... | |
1898 | */ | |
1899 | ||
1900 | if (!con->authref) | |
1901 | return (0); | |
1902 | ||
1903 | authright.name = right; | |
1904 | authright.valueLength = 0; | |
1905 | authright.value = NULL; | |
1906 | authright.flags = 0; | |
1907 | ||
1908 | authrights.count = 1; | |
1909 | authrights.items = &authright; | |
1910 | ||
c8fef167 | 1911 | authflags = kAuthorizationFlagDefaults | |
f7deaa1a | 1912 | kAuthorizationFlagExtendRights; |
1913 | ||
c8fef167 MS |
1914 | if ((status = AuthorizationCopyRights(con->authref, &authrights, |
1915 | kAuthorizationEmptyEnvironment, | |
f7deaa1a | 1916 | authflags, NULL)) != 0) |
1917 | { | |
1918 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1919 | "AuthorizationCopyRights(\"%s\") returned %d (%s)", | |
1920 | authright.name, (int)status, cssmErrorString(status)); | |
1921 | return (0); | |
1922 | } | |
1923 | ||
ffe32673 | 1924 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "AuthorizationCopyRights(\"%s\") succeeded.", authright.name); |
f7deaa1a | 1925 | |
1926 | return (1); | |
1927 | } | |
1928 | #endif /* HAVE_AUTHORIZATION_H */ | |
1929 | ||
1930 | ||
bd7854cb | 1931 | /* |
1932 | * 'compare_locations()' - Compare two locations. | |
1933 | */ | |
1934 | ||
1935 | static int /* O - Result of comparison */ | |
1936 | compare_locations(cupsd_location_t *a, /* I - First location */ | |
1937 | cupsd_location_t *b) /* I - Second location */ | |
1938 | { | |
1939 | return (strcmp(b->location, a->location)); | |
1940 | } | |
1941 | ||
1942 | ||
10d09e33 MS |
1943 | /* |
1944 | * 'copy_authmask()' - Copy function for auth masks. | |
1945 | */ | |
1946 | ||
1947 | static cupsd_authmask_t * /* O - New auth mask */ | |
1948 | copy_authmask(cupsd_authmask_t *mask, /* I - Existing auth mask */ | |
1949 | void *data) /* I - User data (unused) */ | |
1950 | { | |
1951 | cupsd_authmask_t *temp; /* New auth mask */ | |
1952 | ||
1953 | ||
1954 | (void)data; | |
1955 | ||
1956 | if ((temp = malloc(sizeof(cupsd_authmask_t))) != NULL) | |
1957 | { | |
1958 | memcpy(temp, mask, sizeof(cupsd_authmask_t)); | |
1959 | ||
1960 | if (temp->type == CUPSD_AUTH_NAME || temp->type == CUPSD_AUTH_INTERFACE) | |
1961 | { | |
1962 | /* | |
1963 | * Make a copy of the name... | |
1964 | */ | |
1965 | ||
1966 | if ((temp->mask.name.name = _cupsStrAlloc(temp->mask.name.name)) == NULL) | |
1967 | { | |
1968 | /* | |
1969 | * Failed to make copy... | |
1970 | */ | |
1971 | ||
1972 | free(temp); | |
1973 | temp = NULL; | |
1974 | } | |
1975 | } | |
1976 | } | |
1977 | ||
1978 | return (temp); | |
1979 | } | |
1980 | ||
1981 | ||
5a1d7a17 | 1982 | #if !HAVE_LIBPAM |
ef416fc2 | 1983 | /* |
1984 | * 'cups_crypt()' - Encrypt the password using the DES or MD5 algorithms, | |
1985 | * as needed. | |
1986 | */ | |
1987 | ||
1988 | static char * /* O - Encrypted password */ | |
1989 | cups_crypt(const char *pw, /* I - Password string */ | |
1990 | const char *salt) /* I - Salt (key) string */ | |
1991 | { | |
bd7854cb | 1992 | if (!strncmp(salt, "$1$", 3)) |
ef416fc2 | 1993 | { |
1994 | /* | |
1995 | * Use MD5 passwords without the benefit of PAM; this is for | |
1996 | * Slackware Linux, and the algorithm was taken from the | |
1997 | * old shadow-19990827/lib/md5crypt.c source code... :( | |
1998 | */ | |
1999 | ||
2000 | int i; /* Looping var */ | |
2001 | unsigned long n; /* Output number */ | |
2002 | int pwlen; /* Length of password string */ | |
2003 | const char *salt_end; /* End of "salt" data for MD5 */ | |
2004 | char *ptr; /* Pointer into result string */ | |
2005 | _cups_md5_state_t state; /* Primary MD5 state info */ | |
2006 | _cups_md5_state_t state2; /* Secondary MD5 state info */ | |
2007 | unsigned char digest[16]; /* MD5 digest result */ | |
2008 | static char result[120]; /* Final password string */ | |
2009 | ||
2010 | ||
2011 | /* | |
2012 | * Get the salt data between dollar signs, e.g. $1$saltdata$md5. | |
2013 | * Get a maximum of 8 characters of salt data after $1$... | |
2014 | */ | |
2015 | ||
2016 | for (salt_end = salt + 3; *salt_end && (salt_end - salt) < 11; salt_end ++) | |
2017 | if (*salt_end == '$') | |
2018 | break; | |
2019 | ||
2020 | /* | |
2021 | * Compute the MD5 sum we need... | |
2022 | */ | |
2023 | ||
2024 | pwlen = strlen(pw); | |
2025 | ||
757d2cad | 2026 | _cupsMD5Init(&state); |
2027 | _cupsMD5Append(&state, (unsigned char *)pw, pwlen); | |
2028 | _cupsMD5Append(&state, (unsigned char *)salt, salt_end - salt); | |
ef416fc2 | 2029 | |
757d2cad | 2030 | _cupsMD5Init(&state2); |
2031 | _cupsMD5Append(&state2, (unsigned char *)pw, pwlen); | |
2032 | _cupsMD5Append(&state2, (unsigned char *)salt + 3, salt_end - salt - 3); | |
2033 | _cupsMD5Append(&state2, (unsigned char *)pw, pwlen); | |
2034 | _cupsMD5Finish(&state2, digest); | |
ef416fc2 | 2035 | |
2036 | for (i = pwlen; i > 0; i -= 16) | |
757d2cad | 2037 | _cupsMD5Append(&state, digest, i > 16 ? 16 : i); |
ef416fc2 | 2038 | |
2039 | for (i = pwlen; i > 0; i >>= 1) | |
757d2cad | 2040 | _cupsMD5Append(&state, (unsigned char *)((i & 1) ? "" : pw), 1); |
ef416fc2 | 2041 | |
757d2cad | 2042 | _cupsMD5Finish(&state, digest); |
ef416fc2 | 2043 | |
2044 | for (i = 0; i < 1000; i ++) | |
2045 | { | |
757d2cad | 2046 | _cupsMD5Init(&state); |
ef416fc2 | 2047 | |
2048 | if (i & 1) | |
757d2cad | 2049 | _cupsMD5Append(&state, (unsigned char *)pw, pwlen); |
ef416fc2 | 2050 | else |
757d2cad | 2051 | _cupsMD5Append(&state, digest, 16); |
ef416fc2 | 2052 | |
2053 | if (i % 3) | |
757d2cad | 2054 | _cupsMD5Append(&state, (unsigned char *)salt + 3, salt_end - salt - 3); |
ef416fc2 | 2055 | |
2056 | if (i % 7) | |
757d2cad | 2057 | _cupsMD5Append(&state, (unsigned char *)pw, pwlen); |
ef416fc2 | 2058 | |
2059 | if (i & 1) | |
757d2cad | 2060 | _cupsMD5Append(&state, digest, 16); |
ef416fc2 | 2061 | else |
757d2cad | 2062 | _cupsMD5Append(&state, (unsigned char *)pw, pwlen); |
ef416fc2 | 2063 | |
757d2cad | 2064 | _cupsMD5Finish(&state, digest); |
ef416fc2 | 2065 | } |
2066 | ||
2067 | /* | |
2068 | * Copy the final sum to the result string and return... | |
2069 | */ | |
2070 | ||
7d5824d6 | 2071 | memcpy(result, salt, (size_t)(salt_end - salt)); |
ef416fc2 | 2072 | ptr = result + (salt_end - salt); |
2073 | *ptr++ = '$'; | |
2074 | ||
2075 | for (i = 0; i < 5; i ++, ptr += 4) | |
2076 | { | |
7d5824d6 | 2077 | n = ((((unsigned)digest[i] << 8) | (unsigned)digest[i + 6]) << 8); |
ef416fc2 | 2078 | |
2079 | if (i < 4) | |
7d5824d6 | 2080 | n |= (unsigned)digest[i + 12]; |
ef416fc2 | 2081 | else |
7d5824d6 | 2082 | n |= (unsigned)digest[5]; |
ef416fc2 | 2083 | |
2084 | to64(ptr, n, 4); | |
2085 | } | |
2086 | ||
7d5824d6 | 2087 | to64(ptr, (unsigned)digest[11], 2); |
ef416fc2 | 2088 | ptr += 2; |
2089 | *ptr = '\0'; | |
2090 | ||
2091 | return (result); | |
2092 | } | |
2093 | else | |
2094 | { | |
2095 | /* | |
2096 | * Use the standard crypt() function... | |
2097 | */ | |
2098 | ||
2099 | return (crypt(pw, salt)); | |
2100 | } | |
2101 | } | |
5a1d7a17 | 2102 | #endif /* !HAVE_LIBPAM */ |
ef416fc2 | 2103 | |
2104 | ||
10d09e33 MS |
2105 | /* |
2106 | * 'free_authmask()' - Free function for auth masks. | |
2107 | */ | |
2108 | ||
2109 | static void | |
2110 | free_authmask(cupsd_authmask_t *mask, /* I - Auth mask to free */ | |
2111 | void *data) /* I - User data (unused) */ | |
2112 | { | |
2113 | (void)data; | |
2114 | ||
2115 | if (mask->type == CUPSD_AUTH_NAME || mask->type == CUPSD_AUTH_INTERFACE) | |
2116 | _cupsStrFree(mask->mask.name.name); | |
2117 | ||
2118 | free(mask); | |
2119 | } | |
2120 | ||
2121 | ||
ef416fc2 | 2122 | #if HAVE_LIBPAM |
2123 | /* | |
2124 | * 'pam_func()' - PAM conversation function. | |
2125 | */ | |
2126 | ||
2127 | static int /* O - Success or failure */ | |
2128 | pam_func( | |
2129 | int num_msg, /* I - Number of messages */ | |
2130 | const struct pam_message **msg, /* I - Messages */ | |
2131 | struct pam_response **resp, /* O - Responses */ | |
2132 | void *appdata_ptr) | |
2133 | /* I - Pointer to connection */ | |
2134 | { | |
2135 | int i; /* Looping var */ | |
2136 | struct pam_response *replies; /* Replies */ | |
2137 | cupsd_authdata_t *data; /* Pointer to auth data */ | |
2138 | ||
2139 | ||
2140 | /* | |
2141 | * Allocate memory for the responses... | |
2142 | */ | |
2143 | ||
7e86f2f6 | 2144 | if ((replies = malloc(sizeof(struct pam_response) * (size_t)num_msg)) == NULL) |
ef416fc2 | 2145 | return (PAM_CONV_ERR); |
2146 | ||
2147 | /* | |
2148 | * Answer all of the messages... | |
2149 | */ | |
2150 | ||
2151 | DEBUG_printf(("pam_func: appdata_ptr = %p\n", appdata_ptr)); | |
2152 | ||
ef416fc2 | 2153 | data = (cupsd_authdata_t *)appdata_ptr; |
ef416fc2 | 2154 | |
2155 | for (i = 0; i < num_msg; i ++) | |
2156 | { | |
2157 | DEBUG_printf(("pam_func: Message = \"%s\"\n", msg[i]->msg)); | |
2158 | ||
2159 | switch (msg[i]->msg_style) | |
2160 | { | |
2161 | case PAM_PROMPT_ECHO_ON: | |
2162 | DEBUG_printf(("pam_func: PAM_PROMPT_ECHO_ON, returning \"%s\"...\n", | |
2163 | data->username)); | |
2164 | replies[i].resp_retcode = PAM_SUCCESS; | |
2165 | replies[i].resp = strdup(data->username); | |
2166 | break; | |
2167 | ||
2168 | case PAM_PROMPT_ECHO_OFF: | |
2169 | DEBUG_printf(("pam_func: PAM_PROMPT_ECHO_OFF, returning \"%s\"...\n", | |
2170 | data->password)); | |
2171 | replies[i].resp_retcode = PAM_SUCCESS; | |
2172 | replies[i].resp = strdup(data->password); | |
2173 | break; | |
2174 | ||
2175 | case PAM_TEXT_INFO: | |
2176 | DEBUG_puts("pam_func: PAM_TEXT_INFO..."); | |
2177 | replies[i].resp_retcode = PAM_SUCCESS; | |
2178 | replies[i].resp = NULL; | |
2179 | break; | |
2180 | ||
2181 | case PAM_ERROR_MSG: | |
2182 | DEBUG_puts("pam_func: PAM_ERROR_MSG..."); | |
2183 | replies[i].resp_retcode = PAM_SUCCESS; | |
2184 | replies[i].resp = NULL; | |
2185 | break; | |
2186 | ||
2187 | default: | |
2188 | DEBUG_printf(("pam_func: Unknown PAM message %d...\n", | |
2189 | msg[i]->msg_style)); | |
2190 | free(replies); | |
2191 | return (PAM_CONV_ERR); | |
2192 | } | |
2193 | } | |
2194 | ||
2195 | /* | |
2196 | * Return the responses back to PAM... | |
2197 | */ | |
2198 | ||
2199 | *resp = replies; | |
2200 | ||
2201 | return (PAM_SUCCESS); | |
2202 | } | |
5a1d7a17 | 2203 | #else |
ef416fc2 | 2204 | |
2205 | ||
2206 | /* | |
2207 | * 'to64()' - Base64-encode an integer value... | |
2208 | */ | |
2209 | ||
2210 | static void | |
2211 | to64(char *s, /* O - Output string */ | |
2212 | unsigned long v, /* I - Value to encode */ | |
2213 | int n) /* I - Number of digits */ | |
2214 | { | |
2215 | const char *itoa64 = "./0123456789" | |
2216 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
2217 | "abcdefghijklmnopqrstuvwxyz"; | |
2218 | ||
2219 | ||
2220 | for (; n > 0; n --, v >>= 6) | |
2221 | *s++ = itoa64[v & 0x3f]; | |
2222 | } | |
2223 | #endif /* HAVE_LIBPAM */ |