-/*
- Unix SMB/CIFS implementation.
-
- Windows NT Domain nsswitch module
-
- Copyright (C) Tim Potter 2000
- Copyright (C) James Peach 2006
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 3 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "winbind_client.h"
-
-#ifndef PRINTF_ATTRIBUTE
-#define PRINTF_ATTRIBUTE(m, n)
-#endif
-
-#ifndef HAVE_ASPRINTF_DECL
-/*PRINTFLIKE2 */
-int asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
-#endif
-
-#ifdef HAVE_NS_API_H
-#undef STATIC
-#undef DYNAMIC
-#include <ns_daemon.h>
-#endif
-
-/* Maximum number of users to pass back over the unix domain socket
- per call. This is not a static limit on the total number of users
- or groups returned in total. */
-
-#define MAX_GETPWENT_USERS 250
-#define MAX_GETGRENT_USERS 250
-
-/* Prototypes from wb_common.c */
-
-extern int winbindd_fd;
-
-#ifdef HAVE_NS_API_H
-
-/* IRIX version */
-
-static int send_next_request(nsd_file_t *, struct winbindd_request *);
-static int do_list(int state, nsd_file_t *rq);
-
-static nsd_file_t *current_rq = NULL;
-static int current_winbind_xid = 0;
-static int next_winbind_xid = 0;
-
-typedef struct winbind_xid {
- int xid;
- nsd_file_t *rq;
- struct winbindd_request *request;
- struct winbind_xid *next;
-} winbind_xid_t;
-
-static winbind_xid_t *winbind_xids = (winbind_xid_t *)0;
-
-static int
-winbind_xid_new(int xid, nsd_file_t *rq, struct winbindd_request *request)
-{
- winbind_xid_t *new;
-
- nsd_logprintf(NSD_LOG_LOW,
- "entering winbind_xid_new xid = %d rq = 0x%x, request = 0x%x\n",
- xid, rq, request);
- new = (winbind_xid_t *)nsd_calloc(1,sizeof(winbind_xid_t));
- if (!new) {
- nsd_logprintf(NSD_LOG_RESOURCE,"winbind_xid_new: failed malloc\n");
- return NSD_ERROR;
- }
-
- new->xid = xid;
- new->rq = rq;
- new->request = request;
- new->next = winbind_xids;
- winbind_xids = new;
-
- return NSD_CONTINUE;
-}
-
-/*
-** This routine will look down the xid list and return the request
-** associated with an xid. We remove the record if it is found.
-*/
-nsd_file_t *
-winbind_xid_lookup(int xid, struct winbindd_request **requestp)
-{
- winbind_xid_t **last, *dx;
- nsd_file_t *result=0;
-
- for (last = &winbind_xids, dx = winbind_xids; dx && (dx->xid != xid);
- last = &dx->next, dx = dx->next);
- if (dx) {
- *last = dx->next;
- result = dx->rq;
- *requestp = dx->request;
- SAFE_FREE(dx);
- }
- nsd_logprintf(NSD_LOG_LOW,
- "entering winbind_xid_lookup xid = %d rq = 0x%x, request = 0x%x\n",
- xid, result, dx->request);
-
- return result;
-}
-
-static int
-winbind_startnext_timeout(nsd_file_t **rqp, nsd_times_t *to)
-{
- nsd_file_t *rq;
- struct winbindd_request *request;
-
- nsd_logprintf(NSD_LOG_MIN, "timeout (winbind startnext)\n");
- rq = to->t_file;
- *rqp = rq;
- nsd_timeout_remove(rq);
- request = to->t_clientdata;
- return(send_next_request(rq, request));
-}
-
-static void
-dequeue_request(void)
-{
- nsd_file_t *rq;
- struct winbindd_request *request;
-
- /*
- * Check for queued requests
- */
- if (winbind_xids) {
- nsd_logprintf(NSD_LOG_MIN, "timeout (winbind) unqueue xid %d\n",
- current_winbind_xid);
- rq = winbind_xid_lookup(current_winbind_xid++, &request);
- /* cause a timeout on the queued request so we can send it */
- nsd_timeout_new(rq,1,winbind_startnext_timeout,request);
- }
-}
-
-static int
-do_request(nsd_file_t *rq, struct winbindd_request *request)
-{
- if (winbind_xids == NULL) {
- /*
- * No outstanding requests.
- * Send off the request to winbindd
- */
- nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) sending request\n");
- return(send_next_request(rq, request));
- } else {
- /*
- * Just queue it up for now - previous callout or timout
- * will start it up
- */
- nsd_logprintf(NSD_LOG_MIN,
- "lookup (winbind): queue request xid = %d\n",
- next_winbind_xid);
- return(winbind_xid_new(next_winbind_xid++, rq, request));
- }
-}
-
-static int
-winbind_callback(nsd_file_t **rqp, int fd)
-{
- struct winbindd_response response;
- nsd_file_t *rq;
- NSS_STATUS status;
- char * result = NULL;
- size_t rlen;
-
- dequeue_request();
-
- nsd_logprintf(NSD_LOG_MIN, "entering callback (winbind)\n");
-
- rq = current_rq;
- *rqp = rq;
-
- nsd_timeout_remove(rq);
- nsd_callback_remove(fd);
-
- ZERO_STRUCT(response);
- status = winbindd_get_response(&response);
-
- if (status != NSS_STATUS_SUCCESS) {
- /* free any extra data area in response structure */
- winbindd_free_response(&response);
- nsd_logprintf(NSD_LOG_MIN,
- "callback (winbind) returning not found, status = %d\n",
- status);
-
- switch (status) {
- case NSS_STATUS_UNAVAIL:
- rq->f_status = NS_UNAVAIL;
- break;
- case NSS_STATUS_TRYAGAIN:
- rq->f_status = NS_TRYAGAIN;
- break;
- case NSS_STATUS_NOTFOUND:
- /* FALLTHRU */
- default:
- rq->f_status = NS_NOTFOUND;
- }
-
- return NSD_NEXT;
- }
-
- switch ((int)rq->f_cmd_data) {
- case WINBINDD_WINS_BYNAME:
- case WINBINDD_WINS_BYIP:
- nsd_logprintf(NSD_LOG_MIN,
- "callback (winbind) WINS_BYNAME | WINS_BYIP\n");
-
- rlen = asprintf(&result, "%s\n", response.data.winsresp);
- if (rlen == 0 || result == NULL) {
- return NSD_ERROR;
- }
-
- winbindd_free_response(&response);
-
- nsd_logprintf(NSD_LOG_MIN, " %s\n", result);
- nsd_set_result(rq, NS_SUCCESS, result, rlen, DYNAMIC);
- return NSD_OK;
-
- case WINBINDD_GETPWUID:
- case WINBINDD_GETPWNAM:
- {
- struct winbindd_pw *pw = &response.data.pw;
-
- nsd_logprintf(NSD_LOG_MIN,
- "callback (winbind) GETPWUID | GETPWUID\n");
-
- rlen = asprintf(&result,"%s:%s:%d:%d:%s:%s:%s\n",
- pw->pw_name,
- pw->pw_passwd,
- pw->pw_uid,
- pw->pw_gid,
- pw->pw_gecos,
- pw->pw_dir,
- pw->pw_shell);
- if (rlen == 0 || result == NULL)
- return NSD_ERROR;
-
- winbindd_free_response(&response);
-
- nsd_logprintf(NSD_LOG_MIN, " %s\n", result);
- nsd_set_result(rq, NS_SUCCESS, result, rlen, DYNAMIC);
- return NSD_OK;
- }
-
- case WINBINDD_GETGRNAM:
- case WINBINDD_GETGRGID:
- {
- const struct winbindd_gr *gr = &response.data.gr;
- const char * members;
-
- nsd_logprintf(NSD_LOG_MIN,
- "callback (winbind) GETGRNAM | GETGRGID\n");
-
- if (gr->num_gr_mem && response.extra_data.data) {
- members = response.extra_data.data;
- } else {
- members = "";
- }
-
- rlen = asprintf(&result, "%s:%s:%d:%s\n",
- gr->gr_name, gr->gr_passwd, gr->gr_gid, members);
- if (rlen == 0 || result == NULL)
- return NSD_ERROR;
-
- winbindd_free_response(&response);
-
- nsd_logprintf(NSD_LOG_MIN, " %s\n", result);
- nsd_set_result(rq, NS_SUCCESS, result, rlen, DYNAMIC);
- return NSD_OK;
- }
-
- case WINBINDD_SETGRENT:
- case WINBINDD_SETPWENT:
- nsd_logprintf(NSD_LOG_MIN,
- "callback (winbind) SETGRENT | SETPWENT\n");
- winbindd_free_response(&response);
- return(do_list(1,rq));
-
- case WINBINDD_GETGRENT:
- case WINBINDD_GETGRLST:
- {
- int entries;
-
- nsd_logprintf(NSD_LOG_MIN,
- "callback (winbind) GETGRENT | GETGRLIST %d responses\n",
- response.data.num_entries);
-
- if (response.data.num_entries) {
- const struct winbindd_gr *gr = &response.data.gr;
- const char * members;
- fstring grp_name;
- int i;
-
- gr = (struct winbindd_gr *)response.extra_data.data;
- if (! gr ) {
- nsd_logprintf(NSD_LOG_MIN, " no extra_data\n");
- winbindd_free_response(&response);
- return NSD_ERROR;
- }
-
- members = (char *)response.extra_data.data +
- (response.data.num_entries * sizeof(struct winbindd_gr));
-
- for (i = 0; i < response.data.num_entries; i++) {
- snprintf(grp_name, sizeof(grp_name) - 1, "%s:%s:%d:",
- gr->gr_name, gr->gr_passwd, gr->gr_gid);
-
- nsd_append_element(rq, NS_SUCCESS, result, rlen);
- nsd_append_result(rq, NS_SUCCESS,
- &members[gr->gr_mem_ofs],
- strlen(&members[gr->gr_mem_ofs]));
-
- /* Don't log the whole list, because it might be
- * _really_ long and we probably don't want to clobber
- * the log with it.
- */
- nsd_logprintf(NSD_LOG_MIN, " %s (...)\n", grp_name);
-
- gr++;
- }
- }
-
- entries = response.data.num_entries;
- winbindd_free_response(&response);
- if (entries < MAX_GETPWENT_USERS)
- return(do_list(2,rq));
- else
- return(do_list(1,rq));
- }
-
- case WINBINDD_GETPWENT:
- {
- int entries;
-
- nsd_logprintf(NSD_LOG_MIN,
- "callback (winbind) GETPWENT %d responses\n",
- response.data.num_entries);
-
- if (response.data.num_entries) {
- struct winbindd_pw *pw = &response.data.pw;
- int i;
-
- pw = (struct winbindd_pw *)response.extra_data.data;
- if (! pw ) {
- nsd_logprintf(NSD_LOG_MIN, " no extra_data\n");
- winbindd_free_response(&response);
- return NSD_ERROR;
- }
- for (i = 0; i < response.data.num_entries; i++) {
- result = NULL;
- rlen = asprintf(&result, "%s:%s:%d:%d:%s:%s:%s",
- pw->pw_name,
- pw->pw_passwd,
- pw->pw_uid,
- pw->pw_gid,
- pw->pw_gecos,
- pw->pw_dir,
- pw->pw_shell);
-
- if (rlen != 0 && result != NULL) {
- nsd_logprintf(NSD_LOG_MIN, " %s\n",result);
- nsd_append_element(rq, NS_SUCCESS, result, rlen);
- free(result);
- }
-
- pw++;
- }
- }
-
- entries = response.data.num_entries;
- winbindd_free_response(&response);
- if (entries < MAX_GETPWENT_USERS)
- return(do_list(2,rq));
- else
- return(do_list(1,rq));
- }
-
- case WINBINDD_ENDGRENT:
- case WINBINDD_ENDPWENT:
- nsd_logprintf(NSD_LOG_MIN, "callback (winbind) ENDGRENT | ENDPWENT\n");
- nsd_append_element(rq, NS_SUCCESS, "\n", 1);
- winbindd_free_response(&response);
- return NSD_NEXT;
-
- default:
- winbindd_free_response(&response);
- nsd_logprintf(NSD_LOG_MIN, "callback (winbind) invalid command %d\n", (int)rq->f_cmd_data);
- return NSD_NEXT;
- }
-}
-
-static int
-winbind_timeout(nsd_file_t **rqp, nsd_times_t *to)
-{
- nsd_file_t *rq;
-
- dequeue_request();
-
- nsd_logprintf(NSD_LOG_MIN, "timeout (winbind)\n");
-
- rq = to->t_file;
- *rqp = rq;
-
- /* Remove the callback and timeout */
- nsd_callback_remove(winbindd_fd);
- nsd_timeout_remove(rq);
-
- rq->f_status = NS_NOTFOUND;
- return NSD_NEXT;
-}
-
-static int
-send_next_request(nsd_file_t *rq, struct winbindd_request *request)
-{
- NSS_STATUS status;
- long timeout;
-
- switch (rq->f_index) {
- case LOOKUP:
- timeout = nsd_attr_fetch_long(rq->f_attrs,
- "lookup_timeout", 10, 10);
- break;
- case LIST:
- timeout = nsd_attr_fetch_long(rq->f_attrs,
- "list_timeout", 10, 10);
- break;
- default:
- nsd_logprintf(NSD_LOG_OPER,
- "send_next_request (winbind) "
- "invalid request type %d\n", rq->f_index);
- rq->f_status = NS_BADREQ;
- return NSD_NEXT;
- }
-
- nsd_logprintf(NSD_LOG_MIN,
- "send_next_request (winbind) %d, timeout = %d sec\n",
- rq->f_cmd_data, timeout);
- status = winbindd_send_request((int)rq->f_cmd_data,0,request);
- SAFE_FREE(request);
-
- if (status != NSS_STATUS_SUCCESS) {
- nsd_logprintf(NSD_LOG_MIN,
- "send_next_request (winbind) error status = %d\n",
- status);
- rq->f_status = status;
- return NSD_NEXT;
- }
-
- current_rq = rq;
-
- /*
- * Set up callback and timeouts
- */
- nsd_logprintf(NSD_LOG_MIN, "send_next_request (winbind) fd = %d\n",
- winbindd_fd);
-
- nsd_callback_new(winbindd_fd, winbind_callback, NSD_READ);
- nsd_timeout_new(rq, timeout * 1000, winbind_timeout, NULL);
- return NSD_CONTINUE;
-}
-
-int init(void)
-{
- nsd_logprintf(NSD_LOG_MIN, "entering init (winbind)\n");
- return(NSD_OK);
-}
-
-int lookup(nsd_file_t *rq)
-{
- char *map;
- char *key;
- struct winbindd_request *request;
-
- nsd_logprintf(NSD_LOG_MIN, "entering lookup (winbind)\n");
- if (! rq)
- return NSD_ERROR;
-
- map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
- key = nsd_attr_fetch_string(rq->f_attrs, "key", (char*)0);
- if (! map || ! key) {
- nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) table or key not defined\n");
- rq->f_status = NS_BADREQ;
- return NSD_ERROR;
- }
-
- nsd_logprintf(NSD_LOG_MIN, "lookup (winbind %s)\n",map);
-
- request = (struct winbindd_request *)nsd_calloc(1,sizeof(struct winbindd_request));
- if (! request) {
- nsd_logprintf(NSD_LOG_RESOURCE,
- "lookup (winbind): failed malloc\n");
- return NSD_ERROR;
- }
-
- if (strcasecmp(map,"passwd.byuid") == 0) {
- request->data.uid = atoi(key);
- rq->f_cmd_data = (void *)WINBINDD_GETPWUID;
- } else if (strcasecmp(map,"passwd.byname") == 0) {
- strncpy(request->data.username, key,
- sizeof(request->data.username) - 1);
- request->data.username[sizeof(request->data.username) - 1] = '\0';
- rq->f_cmd_data = (void *)WINBINDD_GETPWNAM;
- } else if (strcasecmp(map,"group.byname") == 0) {
- strncpy(request->data.groupname, key,
- sizeof(request->data.groupname) - 1);
- request->data.groupname[sizeof(request->data.groupname) - 1] = '\0';
- rq->f_cmd_data = (void *)WINBINDD_GETGRNAM;
- } else if (strcasecmp(map,"group.bygid") == 0) {
- request->data.gid = atoi(key);
- rq->f_cmd_data = (void *)WINBINDD_GETGRGID;
- } else if (strcasecmp(map,"hosts.byname") == 0) {
- strncpy(request->data.winsreq, key, sizeof(request->data.winsreq) - 1);
- request->data.winsreq[sizeof(request->data.winsreq) - 1] = '\0';
- rq->f_cmd_data = (void *)WINBINDD_WINS_BYNAME;
- } else if (strcasecmp(map,"hosts.byaddr") == 0) {
- strncpy(request->data.winsreq, key, sizeof(request->data.winsreq) - 1);
- request->data.winsreq[sizeof(request->data.winsreq) - 1] = '\0';
- rq->f_cmd_data = (void *)WINBINDD_WINS_BYIP;
- } else {
- /*
- * Don't understand this map - just return not found
- */
- nsd_logprintf(NSD_LOG_MIN, "lookup (winbind) unknown table\n");
- SAFE_FREE(request);
- rq->f_status = NS_NOTFOUND;
- return NSD_NEXT;
- }
-
- return(do_request(rq, request));
-}
-
-int list(nsd_file_t *rq)
-{
- char *map;
-
- nsd_logprintf(NSD_LOG_MIN, "entering list (winbind)\n");
- if (! rq)
- return NSD_ERROR;
-
- map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
- if (! map ) {
- nsd_logprintf(NSD_LOG_MIN, "list (winbind) table not defined\n");
- rq->f_status = NS_BADREQ;
- return NSD_ERROR;
- }
-
- nsd_logprintf(NSD_LOG_MIN, "list (winbind %s)\n",map);
-
- return (do_list(0,rq));
-}
-
-static int
-do_list(int state, nsd_file_t *rq)
-{
- char *map;
- struct winbindd_request *request;
-
- nsd_logprintf(NSD_LOG_MIN, "entering do_list (winbind) state = %d\n",state);
-
- map = nsd_attr_fetch_string(rq->f_attrs, "table", (char*)0);
- request = (struct winbindd_request *)nsd_calloc(1,sizeof(struct winbindd_request));
- if (! request) {
- nsd_logprintf(NSD_LOG_RESOURCE,
- "do_list (winbind): failed malloc\n");
- return NSD_ERROR;
- }
-
- if (strcasecmp(map,"passwd.byname") == 0) {
- switch (state) {
- case 0:
- rq->f_cmd_data = (void *)WINBINDD_SETPWENT;
- break;
- case 1:
- request->data.num_entries = MAX_GETPWENT_USERS;
- rq->f_cmd_data = (void *)WINBINDD_GETPWENT;
- break;
- case 2:
- rq->f_cmd_data = (void *)WINBINDD_ENDPWENT;
- break;
- default:
- nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown state\n");
- SAFE_FREE(request);
- rq->f_status = NS_NOTFOUND;
- return NSD_NEXT;
- }
- } else if (strcasecmp(map,"group.byname") == 0) {
- switch (state) {
- case 0:
- rq->f_cmd_data = (void *)WINBINDD_SETGRENT;
- break;
- case 1:
- request->data.num_entries = MAX_GETGRENT_USERS;
- rq->f_cmd_data = (void *)WINBINDD_GETGRENT;
- break;
- case 2:
- rq->f_cmd_data = (void *)WINBINDD_ENDGRENT;
- break;
- default:
- nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown state\n");
- SAFE_FREE(request);
- rq->f_status = NS_NOTFOUND;
- return NSD_NEXT;
- }
- } else {
- /*
- * Don't understand this map - just return not found
- */
- nsd_logprintf(NSD_LOG_MIN, "do_list (winbind) unknown table\n");
- SAFE_FREE(request);
- rq->f_status = NS_NOTFOUND;
- return NSD_NEXT;
- }
-
- return(do_request(rq, request));
-}
-
-#endif /* HAVE_NS_API_H */
git.samba.org / gd / samba-autobuild / .git / commitdiff