1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
|
/*
Samba Unix/Linux SMB client library
Distributed SMB/CIFS Server Management Utility
Copyright (C) 2003 Andrew Bartlett (abartlet@samba.org)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define FOO(x) (x)
#include "includes.h"
#include "utils/net.h"
#include "secrets.h"
#include "idmap.h"
#include "dbwrap.h"
#include "../libcli/security/security.h"
#define ALLOC_CHECK(mem) do { \
if (!mem) { \
d_fprintf(stderr, _("Out of memory!\n")); \
talloc_free(ctx); \
return -1; \
} } while(0)
/***********************************************************
Helper function for net_idmap_dump. Dump one entry.
**********************************************************/
static int net_idmap_dump_one_entry(struct db_record *rec,
void *unused)
{
if (strcmp((char *)rec->key.dptr, "USER HWM") == 0) {
printf(_("USER HWM %d\n"), IVAL(rec->value.dptr,0));
return 0;
}
if (strcmp((char *)rec->key.dptr, "GROUP HWM") == 0) {
printf(_("GROUP HWM %d\n"), IVAL(rec->value.dptr,0));
return 0;
}
if (strncmp((char *)rec->key.dptr, "S-", 2) != 0)
return 0;
printf("%s %s\n", rec->value.dptr, rec->key.dptr);
return 0;
}
static const char* net_idmap_dbfile(struct net_context *c)
{
const char* dbfile = NULL;
if (c->opt_db != NULL) {
dbfile = talloc_strdup(talloc_tos(), c->opt_db);
if (dbfile == NULL) {
d_fprintf(stderr, _("Out of memory!\n"));
}
} else if (strequal(lp_idmap_backend(), "tdb")) {
dbfile = state_path("winbindd_idmap.tdb");
if (dbfile == NULL) {
d_fprintf(stderr, _("Out of memory!\n"));
}
} else if (strequal(lp_idmap_backend(), "tdb2")) {
dbfile = lp_parm_talloc_string(-1, "tdb", "idmap2.tdb", NULL);
if (dbfile == NULL) {
dbfile = talloc_asprintf(talloc_tos(), "%s/idmap2.tdb",
lp_private_dir());
}
if (dbfile == NULL) {
d_fprintf(stderr, _("Out of memory!\n"));
}
} else {
char* backend = talloc_strdup(talloc_tos(), lp_idmap_backend());
char* args = strchr(backend, ':');
if (args != NULL) {
*args = '\0';
}
d_printf(_("Sorry, 'idmap backend = %s' is currently not supported\n"),
backend);
talloc_free(backend);
}
return dbfile;
}
/***********************************************************
Dump the current idmap
**********************************************************/
static int net_idmap_dump(struct net_context *c, int argc, const char **argv)
{
struct db_context *db;
TALLOC_CTX *mem_ctx;
const char* dbfile;
int ret = -1;
if ( argc > 1 || c->display_usage) {
d_printf("%s\n%s",
_("Usage:"),
_("net idmap dump [[--db=]<inputfile>]\n"
" Dump current ID mapping.\n"
" inputfile\tTDB file to read mappings from.\n"));
return c->display_usage?0:-1;
}
mem_ctx = talloc_stackframe();
dbfile = (argc > 0) ? argv[0] : net_idmap_dbfile(c);
if (dbfile == NULL) {
goto done;
}
d_fprintf(stderr, _("dumping id mapping from %s\n"), dbfile);
db = db_open(mem_ctx, dbfile, 0, TDB_DEFAULT, O_RDONLY, 0);
if (db == NULL) {
d_fprintf(stderr, _("Could not open idmap db (%s): %s\n"),
argv[0], strerror(errno));
goto done;
}
db->traverse_read(db, net_idmap_dump_one_entry, NULL);
ret = 0;
done:
talloc_free(mem_ctx);
return ret;
}
/***********************************************************
Write entries from stdin to current local idmap
**********************************************************/
static int net_idmap_store_id_mapping(struct db_context *db,
enum id_type type,
unsigned long idval,
const char *sid_string)
{
NTSTATUS status;
char *idstr = NULL;
switch(type) {
case ID_TYPE_UID:
idstr = talloc_asprintf(talloc_tos(), "UID %lu", idval);
break;
case ID_TYPE_GID:
idstr = talloc_asprintf(talloc_tos(), "GID %lu", idval);
break;
default:
d_fprintf(stderr, "Invalid id mapping type: %d\n", type);
return -1;
}
status = dbwrap_store_bystring(db, idstr,
string_term_tdb_data(sid_string),
TDB_REPLACE);
if (!NT_STATUS_IS_OK(status)) {
d_fprintf(stderr, "Error storing ID -> SID: "
"%s\n", nt_errstr(status));
talloc_free(idstr);
return -1;
}
status = dbwrap_store_bystring(db, sid_string,
string_term_tdb_data(idstr),
TDB_REPLACE);
if (!NT_STATUS_IS_OK(status)) {
d_fprintf(stderr, "Error storing SID -> ID: "
"%s\n", nt_errstr(status));
talloc_free(idstr);
return -1;
}
return 0;
}
static int net_idmap_restore(struct net_context *c, int argc, const char **argv)
{
TALLOC_CTX *mem_ctx;
FILE *input = NULL;
struct db_context *db;
const char *dbfile = NULL;
int ret = 0;
if (c->display_usage) {
d_printf("%s\n%s",
_("Usage:"),
_("net idmap restore [--db=<TDB>] [<inputfile>]\n"
" Restore ID mappings from file\n"
" TDB\tFile to store ID mappings to."
" inputfile\tFile to load ID mappings from. If not "
"given, load data from stdin.\n"));
return 0;
}
mem_ctx = talloc_stackframe();
dbfile = net_idmap_dbfile(c);
if (dbfile == NULL) {
ret = -1;
goto done;
}
d_fprintf(stderr, _("restoring id mapping to %s\n"), dbfile);
if (argc == 1) {
input = fopen(argv[0], "r");
if (input == NULL) {
d_fprintf(stderr, _("Could not open input file (%s): %s\n"),
argv[0], strerror(errno));
ret = -1;
goto done;
}
} else {
input = stdin;
}
db = db_open(mem_ctx, dbfile, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0644);
if (db == NULL) {
d_fprintf(stderr, _("Could not open idmap db (%s): %s\n"),
dbfile, strerror(errno));
ret = -1;
goto done;
}
if (db->transaction_start(db) != 0) {
d_fprintf(stderr, _("Failed to start transaction.\n"));
ret = -1;
goto done;
}
while (!feof(input)) {
char line[128], sid_string[128];
int len;
unsigned long idval;
if (fgets(line, 127, input) == NULL)
break;
len = strlen(line);
if ( (len > 0) && (line[len-1] == '\n') )
line[len-1] = '\0';
if (sscanf(line, "GID %lu %128s", &idval, sid_string) == 2)
{
ret = net_idmap_store_id_mapping(db, ID_TYPE_GID,
idval, sid_string);
if (ret != 0) {
break;
}
} else if (sscanf(line, "UID %lu %128s", &idval, sid_string) == 2)
{
ret = net_idmap_store_id_mapping(db, ID_TYPE_UID,
idval, sid_string);
if (ret != 0) {
break;
}
} else if (sscanf(line, "USER HWM %lu", &idval) == 1) {
ret = dbwrap_store_int32(db, "USER HWM", idval);
if (ret != 0) {
d_fprintf(stderr, _("Could not store USER HWM.\n"));
break;
}
} else if (sscanf(line, "GROUP HWM %lu", &idval) == 1) {
ret = dbwrap_store_int32(db, "GROUP HWM", idval);
if (ret != 0) {
d_fprintf(stderr,
_("Could not store GROUP HWM.\n"));
break;
}
} else {
d_fprintf(stderr, _("ignoring invalid line [%s]\n"),
line);
continue;
}
}
if (ret == 0) {
if(db->transaction_commit(db) != 0) {
d_fprintf(stderr, _("Failed to commit transaction.\n"));
ret = -1;
}
} else {
if (db->transaction_cancel(db) != 0) {
d_fprintf(stderr, _("Failed to cancel transaction.\n"));
}
}
done:
if ((input != NULL) && (input != stdin)) {
fclose(input);
}
talloc_free(mem_ctx);
return ret;
}
/***********************************************************
Delete a SID mapping from a winbindd_idmap.tdb
**********************************************************/
static int net_idmap_delete(struct net_context *c, int argc, const char **argv)
{
d_printf("%s\n", _("Not implemented yet"));
return -1;
}
static int net_idmap_set(struct net_context *c, int argc, const char **argv)
{
d_printf("%s\n", _("Not implemented yet"));
return -1;
}
static bool idmap_store_secret(const char *backend,
const char *domain,
const char *identity,
const char *secret)
{
char *tmp;
int r;
bool ret;
r = asprintf(&tmp, "IDMAP_%s_%s", backend, domain);
if (r < 0) return false;
strupper_m(tmp); /* make sure the key is case insensitive */
ret = secrets_store_generic(tmp, identity, secret);
free(tmp);
return ret;
}
static int net_idmap_secret(struct net_context *c, int argc, const char **argv)
{
TALLOC_CTX *ctx;
const char *secret;
const char *dn;
char *domain;
char *backend;
char *opt = NULL;
bool ret;
if (argc != 2 || c->display_usage) {
d_printf("%s\n%s",
_("Usage:\n"),
_("net idmap secret <DOMAIN> <secret>\n"
" Set the secret for the specified domain\n"
" DOMAIN\tDomain to set secret for.\n"
" secret\tNew secret to set.\n"));
return c->display_usage?0:-1;
}
secret = argv[1];
ctx = talloc_new(NULL);
ALLOC_CHECK(ctx);
domain = talloc_strdup(ctx, argv[0]);
ALLOC_CHECK(domain);
opt = talloc_asprintf(ctx, "idmap config %s", domain);
ALLOC_CHECK(opt);
backend = talloc_strdup(ctx, lp_parm_const_string(-1, opt, "backend", "tdb"));
ALLOC_CHECK(backend);
if ( ( ! backend) || ( ! strequal(backend, "ldap"))) {
d_fprintf(stderr,
_("The only currently supported backend is LDAP\n"));
talloc_free(ctx);
return -1;
}
dn = lp_parm_const_string(-1, opt, "ldap_user_dn", NULL);
if ( ! dn) {
d_fprintf(stderr,
_("Missing ldap_user_dn option for domain %s\n"),
domain);
talloc_free(ctx);
return -1;
}
ret = idmap_store_secret("ldap", domain, dn, secret);
if ( ! ret) {
d_fprintf(stderr, _("Failed to store secret\n"));
talloc_free(ctx);
return -1;
}
d_printf(_("Secret stored\n"));
return 0;
}
static int net_idmap_aclmapset(struct net_context *c, int argc, const char **argv)
{
TALLOC_CTX *mem_ctx;
int result = -1;
struct dom_sid src_sid, dst_sid;
char *src, *dst;
struct db_context *db;
struct db_record *rec;
NTSTATUS status;
if (argc != 3 || c->display_usage) {
d_fprintf(stderr, "%s net idmap aclmapset <tdb> "
"<src-sid> <dst-sid>\n", _("Usage:"));
return -1;
}
if (!(mem_ctx = talloc_init("net idmap aclmapset"))) {
d_fprintf(stderr, _("talloc_init failed\n"));
return -1;
}
if (!(db = db_open(mem_ctx, argv[0], 0, TDB_DEFAULT,
O_RDWR|O_CREAT, 0600))) {
d_fprintf(stderr, _("db_open failed: %s\n"), strerror(errno));
goto fail;
}
if (!string_to_sid(&src_sid, argv[1])) {
d_fprintf(stderr, _("%s is not a valid sid\n"), argv[1]);
goto fail;
}
if (!string_to_sid(&dst_sid, argv[2])) {
d_fprintf(stderr, _("%s is not a valid sid\n"), argv[2]);
goto fail;
}
if (!(src = sid_string_talloc(mem_ctx, &src_sid))
|| !(dst = sid_string_talloc(mem_ctx, &dst_sid))) {
d_fprintf(stderr, _("talloc_strdup failed\n"));
goto fail;
}
if (!(rec = db->fetch_locked(
db, mem_ctx, string_term_tdb_data(src)))) {
d_fprintf(stderr, _("could not fetch db record\n"));
goto fail;
}
status = rec->store(rec, string_term_tdb_data(dst), 0);
TALLOC_FREE(rec);
if (!NT_STATUS_IS_OK(status)) {
d_fprintf(stderr, _("could not store record: %s\n"),
nt_errstr(status));
goto fail;
}
result = 0;
fail:
TALLOC_FREE(mem_ctx);
return result;
}
/***********************************************************
Look at the current idmap
**********************************************************/
int net_idmap(struct net_context *c, int argc, const char **argv)
{
struct functable func[] = {
{
"dump",
net_idmap_dump,
NET_TRANSPORT_LOCAL,
N_("Dump the current ID mappings"),
N_("net idmap dump\n"
" Dump the current ID mappings")
},
{
"restore",
net_idmap_restore,
NET_TRANSPORT_LOCAL,
N_("Restore entries from stdin"),
N_("net idmap restore\n"
" Restore entries from stdin")
},
{
"setmap",
net_idmap_set,
NET_TRANSPORT_LOCAL,
N_("Not implemented yet"),
N_("net idmap setmap\n"
" Not implemented yet")
},
{
"delete",
net_idmap_delete,
NET_TRANSPORT_LOCAL,
N_("Not implemented yet"),
N_("net idmap delete\n"
" Not implemented yet")
},
{
"secret",
net_idmap_secret,
NET_TRANSPORT_LOCAL,
N_("Set secret for specified domain"),
N_("net idmap secret <DOMAIN> <secret>\n"
" Set secret for specified domain")
},
{
"aclmapset",
net_idmap_aclmapset,
NET_TRANSPORT_LOCAL,
N_("Set acl map"),
N_("net idmap aclmapset\n"
" Set acl map")
},
{NULL, NULL, 0, NULL, NULL}
};
return net_run_function(c, argc, argv, "net idmap", func);
}
|