source: branches/samba-3.0/source/utils/net_idmap.c

Last change on this file was 140, checked in by Paul Smedley, 17 years ago

Update branch to 3.0.31 release
File size: 7.5 KB
Line 
1/*
2 Samba Unix/Linux SMB client library
3 Distributed SMB/CIFS Server Management Utility
4 Copyright (C) 2003 Andrew Bartlett (abartlet@samba.org)
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
19
20#include "includes.h"
21#include "utils/net.h"
22
23#define ALLOC_CHECK(mem) do { \
24 if (!mem) { \
25 d_fprintf(stderr, "Out of memory!\n"); \
26 talloc_free(ctx); \
27 return -1; \
28 } } while(0)
29
30/***********************************************************
31 Helper function for net_idmap_dump. Dump one entry.
32 **********************************************************/
33static int net_idmap_dump_one_entry(TDB_CONTEXT *tdb,
34 TDB_DATA key,
35 TDB_DATA data,
36 void *unused)
37{
38 if (strcmp(key.dptr, "USER HWM") == 0) {
39 printf("USER HWM %d\n", IVAL(data.dptr,0));
40 return 0;
41 }
42
43 if (strcmp(key.dptr, "GROUP HWM") == 0) {
44 printf("GROUP HWM %d\n", IVAL(data.dptr,0));
45 return 0;
46 }
47
48 if (strncmp(key.dptr, "S-", 2) != 0)
49 return 0;
50
51 printf("%s %s\n", data.dptr, key.dptr);
52 return 0;
53}
54
55/***********************************************************
56 Dump the current idmap
57 **********************************************************/
58static int net_idmap_dump(int argc, const char **argv)
59{
60 TDB_CONTEXT *idmap_tdb;
61
62 if ( argc != 1 )
63 return net_help_idmap( argc, argv );
64
65 idmap_tdb = tdb_open_log(argv[0], 0, TDB_DEFAULT, O_RDONLY, 0);
66
67 if (idmap_tdb == NULL) {
68 d_fprintf(stderr, "Could not open idmap: %s\n", argv[0]);
69 return -1;
70 }
71
72 tdb_traverse(idmap_tdb, net_idmap_dump_one_entry, NULL);
73
74 tdb_close(idmap_tdb);
75
76 return 0;
77}
78
79/***********************************************************
80 Write entries from stdin to current local idmap
81 **********************************************************/
82
83static int net_idmap_restore(int argc, const char **argv)
84{
85 TALLOC_CTX *ctx;
86 FILE *input;
87
88 if (! winbind_ping()) {
89 d_fprintf(stderr, "To use net idmap Winbindd must be running.\n");
90 return -1;
91 }
92
93 ctx = talloc_new(NULL);
94 ALLOC_CHECK(ctx);
95
96 if (argc == 1) {
97 input = fopen(argv[0], "r");
98 } else {
99 input = stdin;
100 }
101
102 while (!feof(input)) {
103 char line[128], sid_string[128];
104 int len;
105 DOM_SID sid;
106 struct id_map map;
107 unsigned long idval;
108
109 if (fgets(line, 127, input) == NULL)
110 break;
111
112 len = strlen(line);
113
114 if ( (len > 0) && (line[len-1] == '\n') )
115 line[len-1] = '\0';
116
117 if (sscanf(line, "GID %lu %128s", &idval, sid_string) == 2) {
118 map.xid.type = ID_TYPE_GID;
119 map.xid.id = idval;
120 } else if (sscanf(line, "UID %lu %128s", &idval, sid_string) == 2) {
121 map.xid.type = ID_TYPE_UID;
122 map.xid.id = idval;
123 } else if (sscanf(line, "USER HWM %lu", &idval) == 1) {
124 /* set uid hwm */
125 if (! winbind_set_uid_hwm(idval)) {
126 d_fprintf(stderr, "Could not set USER HWM\n");
127 }
128 continue;
129 } else if (sscanf(line, "GROUP HWM %lu", &idval) == 1) {
130 /* set gid hwm */
131 if (! winbind_set_gid_hwm(idval)) {
132 d_fprintf(stderr, "Could not set GROUP HWM\n");
133 }
134 continue;
135 } else {
136 d_fprintf(stderr, "ignoring invalid line [%s]\n", line);
137 continue;
138 }
139
140 if (!string_to_sid(&sid, sid_string)) {
141 d_fprintf(stderr, "ignoring invalid sid [%s]\n", sid_string);
142 continue;
143 }
144 map.sid = &sid;
145
146 if (!winbind_set_mapping(&map)) {
147 d_fprintf(stderr, "Could not set mapping of %s %lu to sid %s\n",
148 (map.xid.type == ID_TYPE_GID) ? "GID" : "UID",
149 (unsigned long)map.xid.id, sid_string_static(map.sid));
150 continue;
151 }
152
153 }
154
155 if (input != stdin) {
156 fclose(input);
157 }
158
159 talloc_free(ctx);
160 return 0;
161}
162
163/***********************************************************
164 Delete a SID mapping from a winbindd_idmap.tdb
165 **********************************************************/
166static int net_idmap_delete(int argc, const char **argv)
167{
168 d_printf("Not Implemented yet\n");
169 return -1;
170}
171
172static int net_idmap_set(int argc, const char **argv)
173{
174 d_printf("Not Implemented yet\n");
175 return -1;
176}
177BOOL idmap_store_secret(const char *backend, bool alloc,
178 const char *domain, const char *identity,
179 const char *secret)
180{
181 char *tmp;
182 int r;
183 BOOL ret;
184
185 if (alloc) {
186 r = asprintf(&tmp, "IDMAP_ALLOC_%s", backend);
187 } else {
188 r = asprintf(&tmp, "IDMAP_%s_%s", backend, domain);
189 }
190
191 if (r < 0) return false;
192
193 strupper_m(tmp); /* make sure the key is case insensitive */
194 ret = secrets_store_generic(tmp, identity, secret);
195
196 free(tmp);
197 return ret;
198}
199
200
201static int net_idmap_secret(int argc, const char **argv)
202{
203 TALLOC_CTX *ctx;
204 const char *secret;
205 const char *dn;
206 char *domain;
207 char *backend;
208 char *opt = NULL;
209 BOOL ret;
210
211 if (argc != 2) {
212 return net_help_idmap(argc, argv);
213 }
214
215 secret = argv[1];
216
217 ctx = talloc_new(NULL);
218 ALLOC_CHECK(ctx);
219
220 if (strcmp(argv[0], "alloc") == 0) {
221 domain = NULL;
222 backend = lp_idmap_alloc_backend();
223 } else {
224 domain = talloc_strdup(ctx, argv[0]);
225 ALLOC_CHECK(domain);
226
227 opt = talloc_asprintf(ctx, "idmap config %s", domain);
228 ALLOC_CHECK(opt);
229
230 backend = talloc_strdup(ctx, lp_parm_const_string(-1, opt, "backend", "tdb"));
231 ALLOC_CHECK(backend);
232 }
233
234 if ( ( ! backend) || ( ! strequal(backend, "ldap"))) {
235 d_fprintf(stderr, "The only currently supported backend is LDAP\n");
236 talloc_free(ctx);
237 return -1;
238 }
239
240 if (domain) {
241
242 dn = lp_parm_const_string(-1, opt, "ldap_user_dn", NULL);
243 if ( ! dn) {
244 d_fprintf(stderr, "Missing ldap_user_dn option for domain %s\n", domain);
245 talloc_free(ctx);
246 return -1;
247 }
248
249 ret = idmap_store_secret("ldap", false, domain, dn, secret);
250 } else {
251 dn = lp_parm_const_string(-1, "idmap alloc config", "ldap_user_dn", NULL);
252 if ( ! dn) {
253 d_fprintf(stderr, "Missing ldap_user_dn option for alloc backend\n");
254 talloc_free(ctx);
255 return -1;
256 }
257
258 ret = idmap_store_secret("ldap", true, NULL, dn, secret);
259 }
260
261 if ( ! ret) {
262 d_fprintf(stderr, "Failed to store secret\n");
263 talloc_free(ctx);
264 return -1;
265 }
266
267 d_printf("Secret stored\n");
268 return 0;
269}
270
271int net_help_idmap(int argc, const char **argv)
272{
273 d_printf("net idmap dump <inputfile>\n"\
274 " Dump current id mapping\n");
275
276 d_printf("net idmap restore\n"\
277 " Restore entries from stdin\n");
278
279 /* Deliberately *not* document net idmap delete */
280
281 d_printf("net idmap secret <DOMAIN>|alloc <secret>\n"\
282 " Set the secret for the specified DOMAIN (or the alloc module)\n");
283
284 return -1;
285}
286
287/***********************************************************
288 Look at the current idmap
289 **********************************************************/
290int net_idmap(int argc, const char **argv)
291{
292 struct functable func[] = {
293 {"dump", net_idmap_dump},
294 {"restore", net_idmap_restore},
295 {"setmap", net_idmap_set },
296 {"delete", net_idmap_delete},
297 {"secret", net_idmap_secret},
298 {"help", net_help_idmap},
299 {NULL, NULL}
300 };
301
302 return net_run_function(argc, argv, func, net_help_idmap);
303}
304
305
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