2 Unix SMB/CIFS implementation.
4 Windows NT Domain nsswitch module
6 Copyright (C) Tim Potter 2000
7 Copyright (C) James Peach 2006
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Library General Public
11 License as published by the Free Software Foundation; either
12 version 2 of the License, or (at your option) any later version.
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Library General Public License for more details.
19 You should have received a copy of the GNU Library General Public
20 License along with this library; if not, write to the
21 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA.
25 #include "winbind_client.h"
27 #ifndef PRINTF_ATTRIBUTE
28 #define PRINTF_ATTRIBUTE(m, n)
31 #ifndef HAVE_ASPRINTF_DECL
33 int asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
40 #include <ns_daemon.h>
43 /* Maximum number of users to pass back over the unix domain socket
44 per call. This is not a static limit on the total number of users
45 or groups returned in total. */
47 #define MAX_GETPWENT_USERS 250
48 #define MAX_GETGRENT_USERS 250
50 /* Prototypes from wb_common.c */
52 extern int winbindd_fd;
58 static int send_next_request(nsd_file_t *, struct winbindd_request *);
59 static int do_list(int state, nsd_file_t *rq);
61 static nsd_file_t *current_rq = NULL;
62 static int current_winbind_xid = 0;
63 static int next_winbind_xid = 0;
65 typedef struct winbind_xid {
68 struct winbindd_request *request;
69 struct winbind_xid *next;
72 static winbind_xid_t *winbind_xids = (winbind_xid_t *)0;
75 winbind_xid_new(int xid, nsd_file_t *rq, struct winbindd_request *request)
79 nsd_logprintf(NSD_LOG_LOW,
80 "entering winbind_xid_new xid = %d rq = 0x%x, request = 0x%x\n",
82 new = (winbind_xid_t *)nsd_calloc(1,sizeof(winbind_xid_t));
84 nsd_logprintf(NSD_LOG_RESOURCE,"winbind_xid_new: failed malloc\n");
90 new->request = request;
91 new->next = winbind_xids;
98 ** This routine will look down the xid list and return the request
99 ** associated with an xid. We remove the record if it is found.
102 winbind_xid_lookup(int xid, struct winbindd_request **requestp)
104 winbind_xid_t **last, *dx;
105 nsd_file_t *result=0;
107 for (last = &winbind_xids, dx = winbind_xids; dx && (dx->xid != xid);
108 last = &dx->next, dx = dx->next);
112 *requestp = dx->request;
115 nsd_logprintf(NSD_LOG_LOW,
116 "entering winbind_xid_lookup xid = %d rq = 0x%x, request = 0x%x\n",
117 xid, result, dx->request);
123 winbind_startnext_timeout(nsd_file_t **rqp, nsd_times_t *to)
126 struct winbindd_request *request;
128 nsd_logprintf(NSD_LOG_MIN, "timeout (winbind startnext)\n");
131 nsd_timeout_remove(rq);
132 request = to->t_clientdata;
133 return(send_next_request(rq, request));
137 dequeue_request(void)
140 struct winbindd_request *request;
143 * Check for queued requests
146 nsd_logprintf(NSD_LOG_MIN, "timeout (winbind) unqueue xid %d\n",
147 current_winbind_xid);
148 rq = winbind_xid_lookup(current_winbind_xid++, &request);
149 /* cause a timeout on the queued request so we can send it */
150 nsd_timeout_new(rq,1,winbind_startnext_timeout,request);
155 do_request(nsd_file_t *rq, struct winbindd_request *request)
157 if (winbind_xids == NULL) {
159 * No outstanding requests.
160 * Send off the request to winbindd
162 nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) sending request\n");
163 return(send_next_request(rq, request));
166 * Just queue it up for now - previous callout or timout
169 nsd_logprintf(NSD_LOG_MIN,
170 "lookup (winbind): queue request xid = %d\n",
172 return(winbind_xid_new(next_winbind_xid++, rq, request));
177 winbind_callback(nsd_file_t **rqp, int fd)
179 struct winbindd_response response;
182 char * result = NULL;
187 nsd_logprintf(NSD_LOG_MIN, "entering callback (winbind)\n");
192 nsd_timeout_remove(rq);
193 nsd_callback_remove(fd);
195 ZERO_STRUCT(response);
196 status = winbindd_get_response(&response);
198 if (status != NSS_STATUS_SUCCESS) {
199 /* free any extra data area in response structure */
200 free_response(&response);
201 nsd_logprintf(NSD_LOG_MIN,
202 "callback (winbind) returning not found, status = %d\n",
206 case NSS_STATUS_UNAVAIL:
207 rq->f_status = NS_UNAVAIL;
209 case NSS_STATUS_TRYAGAIN:
210 rq->f_status = NS_TRYAGAIN;
212 case NSS_STATUS_NOTFOUND:
215 rq->f_status = NS_NOTFOUND;
221 switch ((int)rq->f_cmd_data) {
222 case WINBINDD_WINS_BYNAME:
223 case WINBINDD_WINS_BYIP:
224 nsd_logprintf(NSD_LOG_MIN,
225 "callback (winbind) WINS_BYNAME | WINS_BYIP\n");
227 rlen = asprintf(&result, "%s\n", response.data.winsresp);
228 if (rlen == 0 || result == NULL) {
232 free_response(&response);
234 nsd_logprintf(NSD_LOG_MIN, " %s\n", result);
235 nsd_set_result(rq, NS_SUCCESS, result, rlen, DYNAMIC);
238 case WINBINDD_GETPWUID:
239 case WINBINDD_GETPWNAM:
241 struct winbindd_pw *pw = &response.data.pw;
243 nsd_logprintf(NSD_LOG_MIN,
244 "callback (winbind) GETPWUID | GETPWUID\n");
246 rlen = asprintf(&result,"%s:%s:%d:%d:%s:%s:%s\n",
254 if (rlen == 0 || result == NULL)
257 free_response(&response);
259 nsd_logprintf(NSD_LOG_MIN, " %s\n", result);
260 nsd_set_result(rq, NS_SUCCESS, result, rlen, DYNAMIC);
264 case WINBINDD_GETGRNAM:
265 case WINBINDD_GETGRGID:
267 const struct winbindd_gr *gr = &response.data.gr;
268 const char * members;
270 nsd_logprintf(NSD_LOG_MIN,
271 "callback (winbind) GETGRNAM | GETGRGID\n");
273 if (gr->num_gr_mem && response.extra_data.data) {
274 members = response.extra_data.data;
279 rlen = asprintf(&result, "%s:%s:%d:%s\n",
280 gr->gr_name, gr->gr_passwd, gr->gr_gid, members);
281 if (rlen == 0 || result == NULL)
284 free_response(&response);
286 nsd_logprintf(NSD_LOG_MIN, " %s\n", result);
287 nsd_set_result(rq, NS_SUCCESS, result, rlen, DYNAMIC);
291 case WINBINDD_SETGRENT:
292 case WINBINDD_SETPWENT:
293 nsd_logprintf(NSD_LOG_MIN,
294 "callback (winbind) SETGRENT | SETPWENT\n");
295 free_response(&response);
296 return(do_list(1,rq));
298 case WINBINDD_GETGRENT:
299 case WINBINDD_GETGRLST:
303 nsd_logprintf(NSD_LOG_MIN,
304 "callback (winbind) GETGRENT | GETGRLIST %d responses\n",
305 response.data.num_entries);
307 if (response.data.num_entries) {
308 const struct winbindd_gr *gr = &response.data.gr;
309 const char * members;
313 gr = (struct winbindd_gr *)response.extra_data.data;
315 nsd_logprintf(NSD_LOG_MIN, " no extra_data\n");
316 free_response(&response);
320 members = (char *)response.extra_data.data +
321 (response.data.num_entries * sizeof(struct winbindd_gr));
323 for (i = 0; i < response.data.num_entries; i++) {
324 snprintf(grp_name, sizeof(grp_name) - 1, "%s:%s:%d:",
325 gr->gr_name, gr->gr_passwd, gr->gr_gid);
327 nsd_append_element(rq, NS_SUCCESS, result, rlen);
328 nsd_append_result(rq, NS_SUCCESS,
329 &members[gr->gr_mem_ofs],
330 strlen(&members[gr->gr_mem_ofs]));
332 /* Don't log the whole list, because it might be
333 * _really_ long and we probably don't want to clobber
336 nsd_logprintf(NSD_LOG_MIN, " %s (...)\n", grp_name);
342 entries = response.data.num_entries;
343 free_response(&response);
344 if (entries < MAX_GETPWENT_USERS)
345 return(do_list(2,rq));
347 return(do_list(1,rq));
350 case WINBINDD_GETPWENT:
354 nsd_logprintf(NSD_LOG_MIN,
355 "callback (winbind) GETPWENT %d responses\n",
356 response.data.num_entries);
358 if (response.data.num_entries) {
359 struct winbindd_pw *pw = &response.data.pw;
362 pw = (struct winbindd_pw *)response.extra_data.data;
364 nsd_logprintf(NSD_LOG_MIN, " no extra_data\n");
365 free_response(&response);
368 for (i = 0; i < response.data.num_entries; i++) {
370 rlen = asprintf(&result, "%s:%s:%d:%d:%s:%s:%s",
379 if (rlen != 0 && result != NULL) {
380 nsd_logprintf(NSD_LOG_MIN, " %s\n",result);
381 nsd_append_element(rq, NS_SUCCESS, result, rlen);
389 entries = response.data.num_entries;
390 free_response(&response);
391 if (entries < MAX_GETPWENT_USERS)
392 return(do_list(2,rq));
394 return(do_list(1,rq));
397 case WINBINDD_ENDGRENT:
398 case WINBINDD_ENDPWENT:
399 nsd_logprintf(NSD_LOG_MIN, "callback (winbind) ENDGRENT | ENDPWENT\n");
400 nsd_append_element(rq, NS_SUCCESS, "\n", 1);
401 free_response(&response);
405 free_response(&response);
406 nsd_logprintf(NSD_LOG_MIN, "callback (winbind) invalid command %d\n", (int)rq->f_cmd_data);
412 winbind_timeout(nsd_file_t **rqp, nsd_times_t *to)
418 nsd_logprintf(NSD_LOG_MIN, "timeout (winbind)\n");
423 /* Remove the callback and timeout */
424 nsd_callback_remove(winbindd_fd);
425 nsd_timeout_remove(rq);
427 rq->f_status = NS_NOTFOUND;
432 send_next_request(nsd_file_t *rq, struct winbindd_request *request)
437 switch (rq->f_index) {
439 timeout = nsd_attr_fetch_long(rq->f_attrs,
440 "lookup_timeout", 10, 10);
443 timeout = nsd_attr_fetch_long(rq->f_attrs,
444 "list_timeout", 10, 10);
447 nsd_logprintf(NSD_LOG_OPER,
448 "send_next_request (winbind) "
449 "invalid request type %d\n", rq->f_index);
450 rq->f_status = NS_BADREQ;
454 nsd_logprintf(NSD_LOG_MIN,
455 "send_next_request (winbind) %d, timeout = %d sec\n",
456 rq->f_cmd_data, timeout);
457 status = winbindd_send_request((int)rq->f_cmd_data,request);
460 if (status != NSS_STATUS_SUCCESS) {
461 nsd_logprintf(NSD_LOG_MIN,
462 "send_next_request (winbind) error status = %d\n",
464 rq->f_status = status;
471 * Set up callback and timeouts
473 nsd_logprintf(NSD_LOG_MIN, "send_next_request (winbind) fd = %d\n",
476 nsd_callback_new(winbindd_fd, winbind_callback, NSD_READ);
477 nsd_timeout_new(rq, timeout * 1000, winbind_timeout, NULL);
483 nsd_logprintf(NSD_LOG_MIN, "entering init (winbind)\n");
487 int lookup(nsd_file_t *rq)
491 struct winbindd_request *request;
493 nsd_logprintf(NSD_LOG_MIN, "entering lookup (winbind)\n");
497 map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
498 key = nsd_attr_fetch_string(rq->f_attrs, "key", (char*)0);
499 if (! map || ! key) {
500 nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) table or key not defined\n");
501 rq->f_status = NS_BADREQ;
505 nsd_logprintf(NSD_LOG_MIN, "lookup (winbind %s)\n",map);
507 request = (struct winbindd_request *)nsd_calloc(1,sizeof(struct winbindd_request));
509 nsd_logprintf(NSD_LOG_RESOURCE,
510 "lookup (winbind): failed malloc\n");
514 if (strcasecmp(map,"passwd.byuid") == 0) {
515 request->data.uid = atoi(key);
516 rq->f_cmd_data = (void *)WINBINDD_GETPWUID;
517 } else if (strcasecmp(map,"passwd.byname") == 0) {
518 strncpy(request->data.username, key,
519 sizeof(request->data.username) - 1);
520 request->data.username[sizeof(request->data.username) - 1] = '\0';
521 rq->f_cmd_data = (void *)WINBINDD_GETPWNAM;
522 } else if (strcasecmp(map,"group.byname") == 0) {
523 strncpy(request->data.groupname, key,
524 sizeof(request->data.groupname) - 1);
525 request->data.groupname[sizeof(request->data.groupname) - 1] = '\0';
526 rq->f_cmd_data = (void *)WINBINDD_GETGRNAM;
527 } else if (strcasecmp(map,"group.bygid") == 0) {
528 request->data.gid = atoi(key);
529 rq->f_cmd_data = (void *)WINBINDD_GETGRGID;
530 } else if (strcasecmp(map,"hosts.byname") == 0) {
531 strncpy(request->data.winsreq, key, sizeof(request->data.winsreq) - 1);
532 request->data.winsreq[sizeof(request->data.winsreq) - 1] = '\0';
533 rq->f_cmd_data = (void *)WINBINDD_WINS_BYNAME;
534 } else if (strcasecmp(map,"hosts.byaddr") == 0) {
535 strncpy(request->data.winsreq, key, sizeof(request->data.winsreq) - 1);
536 request->data.winsreq[sizeof(request->data.winsreq) - 1] = '\0';
537 rq->f_cmd_data = (void *)WINBINDD_WINS_BYIP;
540 * Don't understand this map - just return not found
542 nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) unknown table\n");
544 rq->f_status = NS_NOTFOUND;
548 return(do_request(rq, request));
551 int list(nsd_file_t *rq)
555 nsd_logprintf(NSD_LOG_MIN, "entering list (winbind)\n");
559 map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
561 nsd_logprintf(NSD_LOG_MIN, "list (winbind) table not defined\n");
562 rq->f_status = NS_BADREQ;
566 nsd_logprintf(NSD_LOG_MIN, "list (winbind %s)\n",map);
568 return (do_list(0,rq));
572 do_list(int state, nsd_file_t *rq)
575 struct winbindd_request *request;
577 nsd_logprintf(NSD_LOG_MIN, "entering do_list (winbind) state = %d\n",state);
579 map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
580 request = (struct winbindd_request *)nsd_calloc(1,sizeof(struct winbindd_request));
582 nsd_logprintf(NSD_LOG_RESOURCE,
583 "do_list (winbind): failed malloc\n");
587 if (strcasecmp(map,"passwd.byname") == 0) {
590 rq->f_cmd_data = (void *)WINBINDD_SETPWENT;
593 request->data.num_entries = MAX_GETPWENT_USERS;
594 rq->f_cmd_data = (void *)WINBINDD_GETPWENT;
597 rq->f_cmd_data = (void *)WINBINDD_ENDPWENT;
600 nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown state\n");
602 rq->f_status = NS_NOTFOUND;
605 } else if (strcasecmp(map,"group.byname") == 0) {
608 rq->f_cmd_data = (void *)WINBINDD_SETGRENT;
611 request->data.num_entries = MAX_GETGRENT_USERS;
612 rq->f_cmd_data = (void *)WINBINDD_GETGRENT;
615 rq->f_cmd_data = (void *)WINBINDD_ENDGRENT;
618 nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown state\n");
620 rq->f_status = NS_NOTFOUND;
625 * Don't understand this map - just return not found
627 nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown table\n");
629 rq->f_status = NS_NOTFOUND;
633 return(do_request(rq, request));
636 #endif /* HAVE_NS_API_H */