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Viewing changes to source4/winbind/wb_async_helpers.c

  • Committer: Chuck Short
  • Date: 2010-09-28 20:38:39 UTC
  • Revision ID: zulcss@ubuntu.com-20100928203839-pgjulytsi9ue63x1
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source4/winbind/wb_async_helpers.c
 
1
/* 
 
2
   Unix SMB/CIFS implementation.
 
3
 
 
4
   Copyright (C) Volker Lendecke 2005
 
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 3 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, see <http://www.gnu.org/licenses/>.
 
18
*/
 
19
/*
 
20
  a composite API for finding a DC and its name
 
21
*/
 
22
 
 
23
#include "includes.h"
 
24
#include "libcli/composite/composite.h"
 
25
#include "winbind/wb_async_helpers.h"
 
26
 
 
27
#include "lib/messaging/irpc.h"
 
28
#include "librpc/gen_ndr/irpc.h"
 
29
#include "auth/credentials/credentials.h"
 
30
#include "libcli/security/security.h"
 
31
#include "libcli/auth/libcli_auth.h"
 
32
#include "librpc/gen_ndr/ndr_netlogon_c.h"
 
33
#include "librpc/gen_ndr/ndr_lsa_c.h"
 
34
#include "librpc/gen_ndr/ndr_samr_c.h"
 
35
 
 
36
#include "winbind/wb_helper.h"
 
37
 
 
38
struct lsa_lookupsids_state {
 
39
        struct composite_context *ctx;
 
40
        int num_sids;
 
41
        struct lsa_LookupSids r;
 
42
        struct lsa_SidArray sids;
 
43
        struct lsa_TransNameArray names;
 
44
        struct lsa_RefDomainList *domains;
 
45
        uint32_t count;
 
46
        struct wb_sid_object **result;
 
47
};
 
48
 
 
49
static void lsa_lookupsids_recv_names(struct rpc_request *req);
 
50
 
 
51
struct composite_context *wb_lsa_lookupsids_send(TALLOC_CTX *mem_ctx,
 
52
                                                 struct dcerpc_pipe *lsa_pipe,
 
53
                                                 struct policy_handle *handle,
 
54
                                                 int num_sids,
 
55
                                                 const struct dom_sid **sids)
 
56
{
 
57
        struct composite_context *result;
 
58
        struct rpc_request *req;
 
59
        struct lsa_lookupsids_state *state;
 
60
        int i;
 
61
 
 
62
        result = composite_create(mem_ctx, lsa_pipe->conn->event_ctx);
 
63
        if (result == NULL) goto failed;
 
64
 
 
65
        state = talloc(result, struct lsa_lookupsids_state);
 
66
        if (state == NULL) goto failed;
 
67
        result->private_data = state;
 
68
        state->ctx = result;
 
69
 
 
70
        state->sids.num_sids = num_sids;
 
71
        state->sids.sids = talloc_array(state, struct lsa_SidPtr, num_sids);
 
72
        if (state->sids.sids == NULL) goto failed;
 
73
 
 
74
        for (i=0; i<num_sids; i++) {
 
75
                state->sids.sids[i].sid = dom_sid_dup(state->sids.sids,
 
76
                                                      sids[i]);
 
77
                if (state->sids.sids[i].sid == NULL) goto failed;
 
78
        }
 
79
 
 
80
        state->domains = talloc(state, struct lsa_RefDomainList);
 
81
        if (state->domains == NULL) goto failed;
 
82
 
 
83
        state->count = 0;
 
84
        state->num_sids = num_sids;
 
85
        state->names.count = 0;
 
86
        state->names.names = NULL;
 
87
 
 
88
        state->r.in.handle = handle;
 
89
        state->r.in.sids = &state->sids;
 
90
        state->r.in.names = &state->names;
 
91
        state->r.in.level = 1;
 
92
        state->r.in.count = &state->count;
 
93
        state->r.out.names = &state->names;
 
94
        state->r.out.count = &state->count;
 
95
        state->r.out.domains = &state->domains;
 
96
 
 
97
        req = dcerpc_lsa_LookupSids_send(lsa_pipe, state, &state->r);
 
98
        if (req == NULL) goto failed;
 
99
 
 
100
        req->async.callback = lsa_lookupsids_recv_names;
 
101
        req->async.private_data = state;
 
102
        return result;
 
103
 
 
104
 failed:
 
105
        talloc_free(result);
 
106
        return NULL;
 
107
}
 
108
 
 
109
static void lsa_lookupsids_recv_names(struct rpc_request *req)
 
110
{
 
111
        struct lsa_lookupsids_state *state =
 
112
                talloc_get_type(req->async.private_data,
 
113
                                struct lsa_lookupsids_state);
 
114
        int i;
 
115
 
 
116
        state->ctx->status = dcerpc_ndr_request_recv(req);
 
117
        if (!composite_is_ok(state->ctx)) return;
 
118
        state->ctx->status = state->r.out.result;
 
119
        if (!NT_STATUS_IS_OK(state->ctx->status) &&
 
120
            !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 
121
                composite_error(state->ctx, state->ctx->status);
 
122
                return;
 
123
        }
 
124
 
 
125
        state->result = talloc_array(state, struct wb_sid_object *,
 
126
                                     state->num_sids);
 
127
        if (composite_nomem(state->result, state->ctx)) return;
 
128
 
 
129
        for (i=0; i<state->num_sids; i++) {
 
130
                struct lsa_TranslatedName *name =
 
131
                        &state->r.out.names->names[i];
 
132
                struct lsa_DomainInfo *dom;
 
133
                struct lsa_RefDomainList *domains =
 
134
                        state->domains;
 
135
 
 
136
                state->result[i] = talloc_zero(state->result,
 
137
                                               struct wb_sid_object);
 
138
                if (composite_nomem(state->result[i], state->ctx)) return;
 
139
 
 
140
                state->result[i]->type = name->sid_type;
 
141
                if (state->result[i]->type == SID_NAME_UNKNOWN) {
 
142
                        continue;
 
143
                }
 
144
 
 
145
                if (name->sid_index >= domains->count) {
 
146
                        composite_error(state->ctx,
 
147
                                        NT_STATUS_INVALID_PARAMETER);
 
148
                        return;
 
149
                }
 
150
 
 
151
                dom = &domains->domains[name->sid_index];
 
152
                state->result[i]->domain = talloc_reference(state->result[i],
 
153
                                                            dom->name.string);
 
154
                if ((name->sid_type == SID_NAME_DOMAIN) ||
 
155
                    (name->name.string == NULL)) {
 
156
                        state->result[i]->name =
 
157
                                talloc_strdup(state->result[i], "");
 
158
                } else {
 
159
                        state->result[i]->name =
 
160
                                talloc_steal(state->result[i],
 
161
                                             name->name.string);
 
162
                }
 
163
 
 
164
                if (composite_nomem(state->result[i]->name, state->ctx)) {
 
165
                        return;
 
166
                }
 
167
        }
 
168
 
 
169
        composite_done(state->ctx);
 
170
}
 
171
 
 
172
NTSTATUS wb_lsa_lookupsids_recv(struct composite_context *c,
 
173
                                TALLOC_CTX *mem_ctx,
 
174
                                struct wb_sid_object ***names)
 
175
{
 
176
        NTSTATUS status = composite_wait(c);
 
177
        if (NT_STATUS_IS_OK(status)) {
 
178
                struct lsa_lookupsids_state *state =
 
179
                        talloc_get_type(c->private_data,
 
180
                                        struct lsa_lookupsids_state);
 
181
                *names = talloc_steal(mem_ctx, state->result);
 
182
        }
 
183
        talloc_free(c);
 
184
        return status;
 
185
}
 
186
 
 
187
 
 
188
struct lsa_lookupnames_state {
 
189
        struct composite_context *ctx;
 
190
        uint32_t num_names;
 
191
        struct lsa_LookupNames r;
 
192
        struct lsa_TransSidArray sids;
 
193
        struct lsa_RefDomainList *domains;
 
194
        uint32_t count;
 
195
        struct wb_sid_object **result;
 
196
};
 
197
 
 
198
static void lsa_lookupnames_recv_sids(struct rpc_request *req);
 
199
 
 
200
struct composite_context *wb_lsa_lookupnames_send(TALLOC_CTX *mem_ctx,
 
201
                                                  struct dcerpc_pipe *lsa_pipe,
 
202
                                                  struct policy_handle *handle,
 
203
                                                  int num_names,
 
204
                                                  const char **names)
 
205
{
 
206
        struct composite_context *result;
 
207
        struct rpc_request *req;
 
208
        struct lsa_lookupnames_state *state;
 
209
 
 
210
        struct lsa_String *lsa_names;
 
211
        int i;
 
212
 
 
213
        result = composite_create(mem_ctx, lsa_pipe->conn->event_ctx);
 
214
        if (result == NULL) goto failed;
 
215
 
 
216
        state = talloc(result, struct lsa_lookupnames_state);
 
217
        if (state == NULL) goto failed;
 
218
        result->private_data = state;
 
219
        state->ctx = result;
 
220
 
 
221
        state->sids.count = 0;
 
222
        state->sids.sids = NULL;
 
223
        state->num_names = num_names;
 
224
        state->count = 0;
 
225
 
 
226
        lsa_names = talloc_array(state, struct lsa_String, num_names);
 
227
        if (lsa_names == NULL) goto failed;
 
228
 
 
229
        for (i=0; i<num_names; i++) {
 
230
                lsa_names[i].string = names[i];
 
231
        }
 
232
 
 
233
        state->domains = talloc(state, struct lsa_RefDomainList);
 
234
        if (state->domains == NULL) goto failed;
 
235
 
 
236
        state->r.in.handle = handle;
 
237
        state->r.in.num_names = num_names;
 
238
        state->r.in.names = lsa_names;
 
239
        state->r.in.sids = &state->sids;
 
240
        state->r.in.level = 1;
 
241
        state->r.in.count = &state->count;
 
242
        state->r.out.count = &state->count;
 
243
        state->r.out.sids = &state->sids;
 
244
        state->r.out.domains = &state->domains;
 
245
 
 
246
        req = dcerpc_lsa_LookupNames_send(lsa_pipe, state, &state->r);
 
247
        if (req == NULL) goto failed;
 
248
 
 
249
        req->async.callback = lsa_lookupnames_recv_sids;
 
250
        req->async.private_data = state;
 
251
        return result;
 
252
 
 
253
 failed:
 
254
        talloc_free(result);
 
255
        return NULL;
 
256
}
 
257
 
 
258
static void lsa_lookupnames_recv_sids(struct rpc_request *req)
 
259
{
 
260
        struct lsa_lookupnames_state *state =
 
261
                talloc_get_type(req->async.private_data,
 
262
                                struct lsa_lookupnames_state);
 
263
        int i;
 
264
 
 
265
        state->ctx->status = dcerpc_ndr_request_recv(req);
 
266
        if (!composite_is_ok(state->ctx)) return;
 
267
        state->ctx->status = state->r.out.result;
 
268
        if (!NT_STATUS_IS_OK(state->ctx->status) &&
 
269
            !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 
270
                composite_error(state->ctx, state->ctx->status);
 
271
                return;
 
272
        }
 
273
 
 
274
        state->result = talloc_array(state, struct wb_sid_object *,
 
275
                                     state->num_names);
 
276
        if (composite_nomem(state->result, state->ctx)) return;
 
277
 
 
278
        for (i=0; i<state->num_names; i++) {
 
279
                struct lsa_TranslatedSid *sid = &state->r.out.sids->sids[i];
 
280
                struct lsa_RefDomainList *domains = state->domains;
 
281
                struct lsa_DomainInfo *dom;
 
282
 
 
283
                state->result[i] = talloc_zero(state->result,
 
284
                                               struct wb_sid_object);
 
285
                if (composite_nomem(state->result[i], state->ctx)) return;
 
286
 
 
287
                state->result[i]->type = sid->sid_type;
 
288
                if (state->result[i]->type == SID_NAME_UNKNOWN) {
 
289
                        continue;
 
290
                }
 
291
 
 
292
                if (sid->sid_index >= domains->count) {
 
293
                        composite_error(state->ctx,
 
294
                                        NT_STATUS_INVALID_PARAMETER);
 
295
                        return;
 
296
                }
 
297
 
 
298
                dom = &domains->domains[sid->sid_index];
 
299
 
 
300
                state->result[i]->sid = dom_sid_add_rid(state->result[i],
 
301
                                                        dom->sid, sid->rid);
 
302
        }
 
303
 
 
304
        composite_done(state->ctx);
 
305
}
 
306
 
 
307
NTSTATUS wb_lsa_lookupnames_recv(struct composite_context *c,
 
308
                                 TALLOC_CTX *mem_ctx,
 
309
                                 struct wb_sid_object ***sids)
 
310
{
 
311
        NTSTATUS status = composite_wait(c);
 
312
        if (NT_STATUS_IS_OK(status)) {
 
313
                struct lsa_lookupnames_state *state =
 
314
                        talloc_get_type(c->private_data,
 
315
                                        struct lsa_lookupnames_state);
 
316
                *sids = talloc_steal(mem_ctx, state->result);
 
317
        }
 
318
        talloc_free(c);
 
319
        return status;
 
320
}
 
321
struct samr_getuserdomgroups_state {
 
322
        struct composite_context *ctx;
 
323
        struct dcerpc_pipe *samr_pipe;
 
324
 
 
325
        int num_rids;
 
326
        uint32_t *rids;
 
327
 
 
328
        struct samr_RidWithAttributeArray *rid_array;
 
329
 
 
330
        struct policy_handle *user_handle;
 
331
        struct samr_OpenUser o;
 
332
        struct samr_GetGroupsForUser g;
 
333
        struct samr_Close c;
 
334
};
 
335
 
 
336
static void samr_usergroups_recv_open(struct rpc_request *req);
 
337
static void samr_usergroups_recv_groups(struct rpc_request *req);
 
338
static void samr_usergroups_recv_close(struct rpc_request *req);
 
339
 
 
340
struct composite_context *wb_samr_userdomgroups_send(TALLOC_CTX *mem_ctx,
 
341
                                                     struct dcerpc_pipe *samr_pipe,
 
342
                                                     struct policy_handle *domain_handle,
 
343
                                                     uint32_t rid)
 
344
{
 
345
        struct composite_context *result;
 
346
        struct rpc_request *req;
 
347
        struct samr_getuserdomgroups_state *state;
 
348
 
 
349
        result = composite_create(mem_ctx, samr_pipe->conn->event_ctx);
 
350
        if (result == NULL) goto failed;
 
351
 
 
352
        state = talloc(result, struct samr_getuserdomgroups_state);
 
353
        if (state == NULL) goto failed;
 
354
        result->private_data = state;
 
355
        state->ctx = result;
 
356
 
 
357
        state->samr_pipe = samr_pipe;
 
358
 
 
359
        state->user_handle = talloc(state, struct policy_handle);
 
360
        if (state->user_handle == NULL) goto failed;
 
361
 
 
362
        state->o.in.domain_handle = domain_handle;
 
363
        state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 
364
        state->o.in.rid = rid;
 
365
        state->o.out.user_handle = state->user_handle;
 
366
 
 
367
        req = dcerpc_samr_OpenUser_send(state->samr_pipe, state, &state->o);
 
368
        if (req == NULL) goto failed;
 
369
 
 
370
        req->async.callback = samr_usergroups_recv_open;
 
371
        req->async.private_data = state;
 
372
        return result;
 
373
 
 
374
 failed:
 
375
        talloc_free(result);
 
376
        return NULL;
 
377
}
 
378
                                              
 
379
static void samr_usergroups_recv_open(struct rpc_request *req)
 
380
{
 
381
        struct samr_getuserdomgroups_state *state =
 
382
                talloc_get_type(req->async.private_data,
 
383
                                struct samr_getuserdomgroups_state);
 
384
 
 
385
        state->ctx->status = dcerpc_ndr_request_recv(req);
 
386
        if (!composite_is_ok(state->ctx)) return;
 
387
        state->ctx->status = state->o.out.result;
 
388
        if (!composite_is_ok(state->ctx)) return;
 
389
 
 
390
        state->g.in.user_handle = state->user_handle;
 
391
        state->g.out.rids = &state->rid_array;
 
392
 
 
393
        req = dcerpc_samr_GetGroupsForUser_send(state->samr_pipe, state,
 
394
                                                &state->g);
 
395
        composite_continue_rpc(state->ctx, req, samr_usergroups_recv_groups,
 
396
                               state);
 
397
}
 
398
 
 
399
static void samr_usergroups_recv_groups(struct rpc_request *req)
 
400
{
 
401
        struct samr_getuserdomgroups_state *state =
 
402
                talloc_get_type(req->async.private_data,
 
403
                                struct samr_getuserdomgroups_state);
 
404
 
 
405
        state->ctx->status = dcerpc_ndr_request_recv(req);
 
406
        if (!composite_is_ok(state->ctx)) return;
 
407
        state->ctx->status = state->g.out.result;
 
408
        if (!composite_is_ok(state->ctx)) return;
 
409
 
 
410
        state->c.in.handle = state->user_handle;
 
411
        state->c.out.handle = state->user_handle;
 
412
 
 
413
        req = dcerpc_samr_Close_send(state->samr_pipe, state, &state->c);
 
414
        composite_continue_rpc(state->ctx, req, samr_usergroups_recv_close,
 
415
                               state);
 
416
}
 
417
 
 
418
static void samr_usergroups_recv_close(struct rpc_request *req)
 
419
{
 
420
        struct samr_getuserdomgroups_state *state =
 
421
                talloc_get_type(req->async.private_data,
 
422
                                struct samr_getuserdomgroups_state);
 
423
 
 
424
        state->ctx->status = dcerpc_ndr_request_recv(req);
 
425
        if (!composite_is_ok(state->ctx)) return;
 
426
        state->ctx->status = state->c.out.result;
 
427
        if (!composite_is_ok(state->ctx)) return;
 
428
 
 
429
        composite_done(state->ctx);
 
430
}
 
431
 
 
432
NTSTATUS wb_samr_userdomgroups_recv(struct composite_context *ctx,
 
433
                                    TALLOC_CTX *mem_ctx,
 
434
                                    int *num_rids, uint32_t **rids)
 
435
{
 
436
        struct samr_getuserdomgroups_state *state =
 
437
                talloc_get_type(ctx->private_data,
 
438
                                struct samr_getuserdomgroups_state);
 
439
 
 
440
        int i;
 
441
        NTSTATUS status = composite_wait(ctx);
 
442
        if (!NT_STATUS_IS_OK(status)) goto done;
 
443
 
 
444
        *num_rids = state->rid_array->count;
 
445
        *rids = talloc_array(mem_ctx, uint32_t, *num_rids);
 
446
        if (*rids == NULL) {
 
447
                status = NT_STATUS_NO_MEMORY;
 
448
                goto done;
 
449
        }
 
450
 
 
451
        for (i=0; i<*num_rids; i++) {
 
452
                (*rids)[i] = state->rid_array->rids[i].rid;
 
453
        }
 
454
 
 
455
 done:
 
456
        talloc_free(ctx);
 
457
        return status;
 
458
}