source: trunk/server/source4/libnet/groupinfo.c

Last change on this file was 862, checked in by Silvan Scherrer, 11 years ago

Samba Server: update trunk to 3.6.23
File size: 11.0 KB
RevLine 
[862]1/*
2 Unix SMB/CIFS implementation.
3
4 Copyright (C) Rafal Szczesniak 2007
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/*
21 a composite function for getting group information via samr pipe
22*/
23
24
25#include "includes.h"
26#include "libcli/composite/composite.h"
27#include "librpc/gen_ndr/security.h"
28#include "libcli/security/security.h"
29#include "libnet/libnet.h"
30#include "librpc/gen_ndr/ndr_samr_c.h"
31
32
33struct groupinfo_state {
34 struct dcerpc_pipe *pipe;
35 struct policy_handle domain_handle;
36 struct policy_handle group_handle;
37 uint16_t level;
38 struct samr_LookupNames lookup;
39 struct samr_OpenGroup opengroup;
40 struct samr_QueryGroupInfo querygroupinfo;
41 struct samr_Close samrclose;
42 union samr_GroupInfo *info;
43
44 /* information about the progress */
45 void (*monitor_fn)(struct monitor_msg *);
46};
47
48
49static void continue_groupinfo_lookup(struct tevent_req *subreq);
50static void continue_groupinfo_opengroup(struct tevent_req *subreq);
51static void continue_groupinfo_getgroup(struct tevent_req *subreq);
52static void continue_groupinfo_closegroup(struct tevent_req *subreq);
53
54
55/**
56 * Stage 1 (optional): Look for a group name in SAM server.
57 */
58static void continue_groupinfo_lookup(struct tevent_req *subreq)
59{
60 struct composite_context *c;
61 struct groupinfo_state *s;
62 struct monitor_msg msg;
63 struct msg_rpc_lookup_name *msg_lookup;
64
65 c = tevent_req_callback_data(subreq, struct composite_context);
66 s = talloc_get_type(c->private_data, struct groupinfo_state);
67
68 /* receive samr_Lookup reply */
69 c->status = dcerpc_samr_LookupNames_r_recv(subreq, s);
70 TALLOC_FREE(subreq);
71 if (!composite_is_ok(c)) return;
72
73 /* there could be a problem with name resolving itself */
74 if (!NT_STATUS_IS_OK(s->lookup.out.result)) {
75 composite_error(c, s->lookup.out.result);
76 return;
77 }
78
79 /* issue a monitor message */
80 if (s->monitor_fn) {
81 msg.type = mon_SamrLookupName;
82 msg_lookup = talloc(s, struct msg_rpc_lookup_name);
83 msg_lookup->rid = s->lookup.out.rids->ids;
84 msg_lookup->count = s->lookup.out.rids->count;
85 msg.data = (void*)msg_lookup;
86 msg.data_size = sizeof(*msg_lookup);
87
88 s->monitor_fn(&msg);
89 }
90
91 /* have we actually got name resolved
92 - we're looking for only one at the moment */
93 if (s->lookup.out.rids->count != s->lookup.in.num_names) {
94 composite_error(c, NT_STATUS_INVALID_NETWORK_RESPONSE);
95 return;
96 }
97 if (s->lookup.out.types->count != s->lookup.in.num_names) {
98 composite_error(c, NT_STATUS_INVALID_NETWORK_RESPONSE);
99 return;
100 }
101
102 /* TODO: find proper status code for more than one rid found */
103
104 /* prepare parameters for LookupNames */
105 s->opengroup.in.domain_handle = &s->domain_handle;
106 s->opengroup.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
107 s->opengroup.in.rid = s->lookup.out.rids->ids[0];
108 s->opengroup.out.group_handle = &s->group_handle;
109
110 /* send request */
111 subreq = dcerpc_samr_OpenGroup_r_send(s, c->event_ctx,
112 s->pipe->binding_handle,
113 &s->opengroup);
114 if (composite_nomem(subreq, c)) return;
115
116 tevent_req_set_callback(subreq, continue_groupinfo_opengroup, c);
117}
118
119
120/**
121 * Stage 2: Open group policy handle.
122 */
123static void continue_groupinfo_opengroup(struct tevent_req *subreq)
124{
125 struct composite_context *c;
126 struct groupinfo_state *s;
127 struct monitor_msg msg;
128 struct msg_rpc_open_group *msg_open;
129
130 c = tevent_req_callback_data(subreq, struct composite_context);
131 s = talloc_get_type(c->private_data, struct groupinfo_state);
132
133 /* receive samr_OpenGroup reply */
134 c->status = dcerpc_samr_OpenGroup_r_recv(subreq, s);
135 TALLOC_FREE(subreq);
136 if (!composite_is_ok(c)) return;
137
138 if (!NT_STATUS_IS_OK(s->querygroupinfo.out.result)) {
139 composite_error(c, s->querygroupinfo.out.result);
140 return;
141 }
142
143 /* issue a monitor message */
144 if (s->monitor_fn) {
145 msg.type = mon_SamrOpenGroup;
146 msg_open = talloc(s, struct msg_rpc_open_group);
147 msg_open->rid = s->opengroup.in.rid;
148 msg_open->access_mask = s->opengroup.in.access_mask;
149 msg.data = (void*)msg_open;
150 msg.data_size = sizeof(*msg_open);
151
152 s->monitor_fn(&msg);
153 }
154
155 /* prepare parameters for QueryGroupInfo call */
156 s->querygroupinfo.in.group_handle = &s->group_handle;
157 s->querygroupinfo.in.level = s->level;
158 s->querygroupinfo.out.info = talloc(s, union samr_GroupInfo *);
159 if (composite_nomem(s->querygroupinfo.out.info, c)) return;
160
161 /* queue rpc call, set event handling and new state */
162 subreq = dcerpc_samr_QueryGroupInfo_r_send(s,
163 c->event_ctx,
164 s->pipe->binding_handle,
165 &s->querygroupinfo);
166 if (composite_nomem(subreq, c)) return;
167
168 tevent_req_set_callback(subreq, continue_groupinfo_getgroup, c);
169}
170
171
172/**
173 * Stage 3: Get requested group information.
174 */
175static void continue_groupinfo_getgroup(struct tevent_req *subreq)
176{
177 struct composite_context *c;
178 struct groupinfo_state *s;
179 struct monitor_msg msg;
180 struct msg_rpc_query_group *msg_query;
181
182 c = tevent_req_callback_data(subreq, struct composite_context);
183 s = talloc_get_type(c->private_data, struct groupinfo_state);
184
185 /* receive samr_QueryGroupInfo reply */
186 c->status = dcerpc_samr_QueryGroupInfo_r_recv(subreq, s);
187 TALLOC_FREE(subreq);
188 if (!composite_is_ok(c)) return;
189
190 /* check if querygroup itself went ok */
191 if (!NT_STATUS_IS_OK(s->querygroupinfo.out.result)) {
192 composite_error(c, s->querygroupinfo.out.result);
193 return;
194 }
195
196 s->info = talloc_steal(s, *s->querygroupinfo.out.info);
197
198 /* issue a monitor message */
199 if (s->monitor_fn) {
200 msg.type = mon_SamrQueryGroup;
201 msg_query = talloc(s, struct msg_rpc_query_group);
202 msg_query->level = s->querygroupinfo.in.level;
203 msg.data = (void*)msg_query;
204 msg.data_size = sizeof(*msg_query);
205
206 s->monitor_fn(&msg);
207 }
208
209 /* prepare arguments for Close call */
210 s->samrclose.in.handle = &s->group_handle;
211 s->samrclose.out.handle = &s->group_handle;
212
213 /* queue rpc call, set event handling and new state */
214 subreq = dcerpc_samr_Close_r_send(s, c->event_ctx,
215 s->pipe->binding_handle,
216 &s->samrclose);
217 if (composite_nomem(subreq, c)) return;
218
219 tevent_req_set_callback(subreq, continue_groupinfo_closegroup, c);
220}
221
222
223/**
224 * Stage 4: Close policy handle associated with opened group.
225 */
226static void continue_groupinfo_closegroup(struct tevent_req *subreq)
227{
228 struct composite_context *c;
229 struct groupinfo_state *s;
230 struct monitor_msg msg;
231 struct msg_rpc_close_group *msg_close;
232
233 c = tevent_req_callback_data(subreq, struct composite_context);
234 s = talloc_get_type(c->private_data, struct groupinfo_state);
235
236 /* receive samr_Close reply */
237 c->status = dcerpc_samr_Close_r_recv(subreq, s);
238 TALLOC_FREE(subreq);
239 if (!composite_is_ok(c)) return;
240
241 if (!NT_STATUS_IS_OK(s->samrclose.out.result)) {
242 composite_error(c, s->samrclose.out.result);
243 return;
244 }
245
246 /* issue a monitor message */
247 if (s->monitor_fn) {
248 msg.type = mon_SamrClose;
249 msg_close = talloc(s, struct msg_rpc_close_group);
250 msg_close->rid = s->opengroup.in.rid;
251 msg.data = (void*)msg_close;
252 msg.data_size = sizeof(*msg_close);
253
254 s->monitor_fn(&msg);
255 }
256
257 composite_done(c);
258}
259
260
261/**
262 * Sends asynchronous groupinfo request
263 *
264 * @param p dce/rpc call pipe
265 * @param io arguments and results of the call
266 */
267struct composite_context *libnet_rpc_groupinfo_send(struct dcerpc_pipe *p,
268 struct libnet_rpc_groupinfo *io,
269 void (*monitor)(struct monitor_msg*))
270{
271 struct composite_context *c;
272 struct groupinfo_state *s;
273 struct dom_sid *sid;
274 struct tevent_req *subreq;
275
276 if (!p || !io) return NULL;
277
278 c = composite_create(p, dcerpc_event_context(p));
279 if (c == NULL) return c;
280
281 s = talloc_zero(c, struct groupinfo_state);
282 if (composite_nomem(s, c)) return c;
283
284 c->private_data = s;
285
286 s->level = io->in.level;
287 s->pipe = p;
288 s->domain_handle = io->in.domain_handle;
289 s->monitor_fn = monitor;
290
291 if (io->in.sid) {
292 sid = dom_sid_parse_talloc(s, io->in.sid);
293 if (composite_nomem(sid, c)) return c;
294
295 s->opengroup.in.domain_handle = &s->domain_handle;
296 s->opengroup.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
297 s->opengroup.in.rid = sid->sub_auths[sid->num_auths - 1];
298 s->opengroup.out.group_handle = &s->group_handle;
299
300 /* send request */
301 subreq = dcerpc_samr_OpenGroup_r_send(s, c->event_ctx,
302 p->binding_handle,
303 &s->opengroup);
304 if (composite_nomem(subreq, c)) return c;
305
306 tevent_req_set_callback(subreq, continue_groupinfo_opengroup, c);
307
308 } else {
309 /* preparing parameters to send rpc request */
310 s->lookup.in.domain_handle = &s->domain_handle;
311 s->lookup.in.num_names = 1;
312 s->lookup.in.names = talloc_array(s, struct lsa_String, 1);
313 if (composite_nomem(s->lookup.in.names, c)) return c;
314
315 s->lookup.in.names[0].string = talloc_strdup(s, io->in.groupname);
316 if (composite_nomem(s->lookup.in.names[0].string, c)) return c;
317 s->lookup.out.rids = talloc_zero(s, struct samr_Ids);
318 s->lookup.out.types = talloc_zero(s, struct samr_Ids);
319 if (composite_nomem(s->lookup.out.rids, c)) return c;
320 if (composite_nomem(s->lookup.out.types, c)) return c;
321
322 /* send request */
323 subreq = dcerpc_samr_LookupNames_r_send(s, c->event_ctx,
324 p->binding_handle,
325 &s->lookup);
326 if (composite_nomem(subreq, c)) return c;
327
328 tevent_req_set_callback(subreq, continue_groupinfo_lookup, c);
329 }
330
331 return c;
332}
333
334
335/**
336 * Waits for and receives result of asynchronous groupinfo call
337 *
338 * @param c composite context returned by asynchronous groupinfo call
339 * @param mem_ctx memory context of the call
340 * @param io pointer to results (and arguments) of the call
341 * @return nt status code of execution
342 */
343
344NTSTATUS libnet_rpc_groupinfo_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
345 struct libnet_rpc_groupinfo *io)
346{
347 NTSTATUS status;
348 struct groupinfo_state *s;
349
350 /* wait for results of sending request */
351 status = composite_wait(c);
352
353 if (NT_STATUS_IS_OK(status) && io) {
354 s = talloc_get_type(c->private_data, struct groupinfo_state);
355 talloc_steal(mem_ctx, s->info);
356 io->out.info = *s->info;
357 }
358
359 /* memory context associated to composite context is no longer needed */
360 talloc_free(c);
361 return status;
362}
363
364
365/**
366 * Synchronous version of groupinfo call
367 *
368 * @param pipe dce/rpc call pipe
369 * @param mem_ctx memory context for the call
370 * @param io arguments and results of the call
371 * @return nt status code of execution
372 */
373
374NTSTATUS libnet_rpc_groupinfo(struct dcerpc_pipe *p,
375 TALLOC_CTX *mem_ctx,
376 struct libnet_rpc_groupinfo *io)
377{
378 struct composite_context *c = libnet_rpc_groupinfo_send(p, io, NULL);
379 return libnet_rpc_groupinfo_recv(c, mem_ctx, io);
380}
Note: See TracBrowser for help on using the repository browser.