2 Unix SMB/CIFS implementation.
4 Async helpers for blocking functions
6 Copyright (C) Volker Lendecke 2005
7 Copyright (C) Gerald Carter 2006
9 The helpers always consist of three functions:
11 * A request setup function that takes the necessary parameters together
12 with a continuation function that is to be called upon completion
14 * A private continuation function that is internal only. This is to be
15 called by the lower-level functions in do_async(). Its only task is to
16 properly call the continuation function named above.
18 * A worker function that is called inside the appropriate child process.
20 This program is free software; you can redistribute it and/or modify
21 it under the terms of the GNU General Public License as published by
22 the Free Software Foundation; either version 3 of the License, or
23 (at your option) any later version.
25 This program is distributed in the hope that it will be useful,
26 but WITHOUT ANY WARRANTY; without even the implied warranty of
27 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 GNU General Public License for more details.
30 You should have received a copy of the GNU General Public License
31 along with this program. If not, see <http://www.gnu.org/licenses/>.
38 #define DBGC_CLASS DBGC_WINBIND
40 struct do_async_state {
42 struct winbindd_request request;
43 struct winbindd_response response;
44 void (*cont)(TALLOC_CTX *mem_ctx,
46 struct winbindd_response *response,
47 void *c, void *private_data);
48 void *c, *private_data;
51 static void do_async_recv(void *private_data, bool success)
53 struct do_async_state *state =
54 talloc_get_type_abort(private_data, struct do_async_state);
56 state->cont(state->mem_ctx, success, &state->response,
57 state->c, state->private_data);
60 void do_async(TALLOC_CTX *mem_ctx, struct winbindd_child *child,
61 const struct winbindd_request *request,
62 void (*cont)(TALLOC_CTX *mem_ctx, bool success,
63 struct winbindd_response *response,
64 void *c, void *private_data),
65 void *c, void *private_data)
67 struct do_async_state *state;
69 state = TALLOC_ZERO_P(mem_ctx, struct do_async_state);
71 DEBUG(0, ("talloc failed\n"));
72 cont(mem_ctx, False, NULL, c, private_data);
76 state->mem_ctx = mem_ctx;
77 state->request = *request;
78 state->request.length = sizeof(state->request);
81 state->private_data = private_data;
83 async_request(mem_ctx, child, &state->request,
84 &state->response, do_async_recv, state);
87 static void do_async_domain(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
88 const struct winbindd_request *request,
89 void (*cont)(TALLOC_CTX *mem_ctx, bool success,
90 struct winbindd_response *response,
91 void *c, void *private_data),
92 void *c, void *private_data)
94 struct do_async_state *state;
96 state = TALLOC_ZERO_P(mem_ctx, struct do_async_state);
98 DEBUG(0, ("talloc failed\n"));
99 cont(mem_ctx, False, NULL, c, private_data);
103 state->mem_ctx = mem_ctx;
104 state->request = *request;
105 state->request.length = sizeof(state->request);
108 state->private_data = private_data;
110 async_domain_request(mem_ctx, domain, &state->request,
111 &state->response, do_async_recv, state);
114 enum winbindd_result winbindd_dual_lookupsid(struct winbindd_domain *domain,
115 struct winbindd_cli_state *state)
117 enum lsa_SidType type;
122 /* Ensure null termination */
123 state->request->data.sid[sizeof(state->request->data.sid)-1]='\0';
125 DEBUG(3, ("[%5lu]: lookupsid %s\n", (unsigned long)state->pid,
126 state->request->data.sid));
128 /* Lookup sid from PDC using lsa_lookup_sids() */
130 if (!string_to_sid(&sid, state->request->data.sid)) {
131 DEBUG(5, ("%s not a SID\n", state->request->data.sid));
132 return WINBINDD_ERROR;
137 if (!winbindd_lookup_name_by_sid(state->mem_ctx, domain, &sid,
138 &dom_name, &name, &type))
140 TALLOC_FREE(dom_name);
142 return WINBINDD_ERROR;
145 fstrcpy(state->response->data.name.dom_name, dom_name);
146 fstrcpy(state->response->data.name.name, name);
147 state->response->data.name.type = type;
149 TALLOC_FREE(dom_name);
154 enum winbindd_result winbindd_dual_lookupname(struct winbindd_domain *domain,
155 struct winbindd_cli_state *state)
157 enum lsa_SidType type;
158 char *name_domain, *name_user;
162 /* Ensure null termination */
163 state->request->data.name.dom_name[sizeof(state->request->data.name.dom_name)-1]='\0';
165 /* Ensure null termination */
166 state->request->data.name.name[sizeof(state->request->data.name.name)-1]='\0';
168 /* cope with the name being a fully qualified name */
169 p = strstr(state->request->data.name.name, lp_winbind_separator());
172 name_domain = state->request->data.name.name;
175 name_domain = state->request->data.name.dom_name;
176 name_user = state->request->data.name.name;
179 DEBUG(3, ("[%5lu]: lookupname %s%s%s\n", (unsigned long)state->pid,
180 name_domain, lp_winbind_separator(), name_user));
182 /* Lookup name from DC using lsa_lookup_names() */
183 if (!winbindd_lookup_sid_by_name(state->mem_ctx, state->request->original_cmd, domain, name_domain,
184 name_user, &sid, &type)) {
185 return WINBINDD_ERROR;
188 sid_to_fstring(state->response->data.sid.sid, &sid);
189 state->response->data.sid.type = type;
194 bool print_sidlist(TALLOC_CTX *mem_ctx, const DOM_SID *sids,
195 size_t num_sids, char **result, ssize_t *len)
202 for (i=0; i<num_sids; i++) {
204 sprintf_append(mem_ctx, result, len, &buflen,
205 "%s\n", sid_to_fstring(tmp, &sids[i]));
208 if ((num_sids != 0) && (*result == NULL)) {
215 bool parse_sidlist(TALLOC_CTX *mem_ctx, const char *sidstr,
216 DOM_SID **sids, size_t *num_sids)
224 while (p[0] != '\0') {
230 DEBUG(0, ("Got invalid sidstr: %s\n", p));
233 sidlen = PTR_DIFF(q, p);
234 if (sidlen >= sizeof(tmp)-1) {
237 memcpy(tmp, p, sidlen);
240 if (!string_to_sid(&sid, tmp)) {
241 DEBUG(0, ("Could not parse sid %s\n", p));
244 if (!NT_STATUS_IS_OK(add_sid_to_array(mem_ctx, &sid, sids,
254 static void getsidaliases_recv(TALLOC_CTX *mem_ctx, bool success,
255 struct winbindd_response *response,
256 void *c, void *private_data)
258 void (*cont)(void *priv, bool succ,
259 DOM_SID *aliases, size_t num_aliases) =
260 (void (*)(void *, bool, DOM_SID *, size_t))c;
262 DOM_SID *sids = NULL;
266 DEBUG(5, ("Could not trigger getsidaliases\n"));
267 cont(private_data, success, NULL, 0);
271 if (response->result != WINBINDD_OK) {
272 DEBUG(5, ("getsidaliases returned an error\n"));
273 cont(private_data, False, NULL, 0);
277 aliases_str = (char *)response->extra_data.data;
279 if (aliases_str == NULL) {
280 DEBUG(10, ("getsidaliases return 0 SIDs\n"));
281 cont(private_data, True, NULL, 0);
285 if (!parse_sidlist(mem_ctx, aliases_str, &sids, &num_sids)) {
286 DEBUG(0, ("Could not parse sids\n"));
287 cont(private_data, False, NULL, 0);
291 cont(private_data, True, sids, num_sids);
294 void winbindd_getsidaliases_async(struct winbindd_domain *domain,
296 const DOM_SID *sids, size_t num_sids,
297 void (*cont)(void *private_data,
299 const DOM_SID *aliases,
303 struct winbindd_request request;
308 cont(private_data, True, NULL, 0);
312 if (!print_sidlist(mem_ctx, sids, num_sids, &sidstr, &len)) {
313 cont(private_data, False, NULL, 0);
317 ZERO_STRUCT(request);
318 request.cmd = WINBINDD_DUAL_GETSIDALIASES;
319 request.extra_len = len;
320 request.extra_data.data = sidstr;
322 do_async_domain(mem_ctx, domain, &request, getsidaliases_recv,
323 (void *)cont, private_data);
326 static void query_user_recv(TALLOC_CTX *mem_ctx, bool success,
327 struct winbindd_response *response,
328 void *c, void *private_data)
330 void (*cont)(void *priv, bool succ, const char *acct_name,
331 const char *full_name, const char *homedir,
332 const char *shell, uint32 gid, uint32 group_rid) =
333 (void (*)(void *, bool, const char *, const char *,
334 const char *, const char *, uint32, uint32))c;
337 DEBUG(5, ("Could not trigger query_user\n"));
338 cont(private_data, False, NULL, NULL, NULL, NULL, -1, -1);
342 if (response->result != WINBINDD_OK) {
343 DEBUG(5, ("query_user returned an error\n"));
344 cont(private_data, False, NULL, NULL, NULL, NULL, -1, -1);
348 cont(private_data, True, response->data.user_info.acct_name,
349 response->data.user_info.full_name,
350 response->data.user_info.homedir,
351 response->data.user_info.shell,
352 response->data.user_info.primary_gid,
353 response->data.user_info.group_rid);
356 void query_user_async(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
358 void (*cont)(void *private_data, bool success,
359 const char *acct_name,
360 const char *full_name,
367 struct winbindd_request request;
368 ZERO_STRUCT(request);
369 request.cmd = WINBINDD_DUAL_USERINFO;
370 sid_to_fstring(request.data.sid, sid);
371 do_async_domain(mem_ctx, domain, &request, query_user_recv,
372 (void *)cont, private_data);
375 enum winbindd_result winbindd_dual_ping(struct winbindd_domain *domain,
376 struct winbindd_cli_state *state)