s3:winbind: Add lookup_aliasmem to winbindd_methods and implement it in all backends
[samba.git] / source3 / winbindd / winbindd_getsidaliases.c
1 /*
2    Unix SMB/CIFS implementation.
3    async implementation of WINBINDD_GETSIDALIASES
4    Copyright (C) Volker Lendecke 2009
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 #include "includes.h"
21 #include "winbindd.h"
22 #include "../libcli/security/security.h"
23
24 struct winbindd_getsidaliases_state {
25         struct dom_sid sid;
26         uint32_t num_aliases;
27         uint32_t *aliases;
28 };
29
30 static void winbindd_getsidaliases_done(struct tevent_req *subreq);
31
32 struct tevent_req *winbindd_getsidaliases_send(TALLOC_CTX *mem_ctx,
33                                                struct tevent_context *ev,
34                                                struct winbindd_cli_state *cli,
35                                                struct winbindd_request *request)
36 {
37         struct tevent_req *req, *subreq;
38         struct winbindd_getsidaliases_state *state;
39         struct winbindd_domain *domain;
40         uint32_t num_sids, i;
41         struct dom_sid *sids;
42
43         req = tevent_req_create(mem_ctx, &state,
44                                 struct winbindd_getsidaliases_state);
45         if (req == NULL) {
46                 return NULL;
47         }
48
49         /* Ensure null termination */
50         request->data.sid[sizeof(request->data.sid)-1]='\0';
51
52         if (!string_to_sid(&state->sid, request->data.sid)) {
53                 D_WARNING("Could not get convert sid %s from string\n",
54                           request->data.sid);
55                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
56                 return tevent_req_post(req, ev);
57         }
58
59         domain = find_domain_from_sid_noinit(&state->sid);
60         if (domain == NULL) {
61                 D_WARNING("could not find domain entry for sid %s\n",
62                          request->data.sid);
63                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
64                 return tevent_req_post(req, ev);
65         }
66
67         num_sids = 0;
68         sids = NULL;
69
70         if (request->extra_data.data != NULL) {
71                 if (request->extra_data.data[request->extra_len-1] != '\0') {
72                         D_WARNING("Got non-NULL terminated sidlist\n");
73                         tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
74                         return tevent_req_post(req, ev);
75                 }
76                 if (!parse_sidlist(state, request->extra_data.data,
77                                    &sids, &num_sids)) {
78                         D_WARNING("Could not parse SID list: %s\n",
79                                   request->extra_data.data);
80                         tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
81                         return tevent_req_post(req, ev);
82                 }
83         }
84
85         D_NOTICE("[%s (%u)] Winbind external command GETSIDALIASES start.\n"
86                  "sid=%s\n",
87                  cli->client_name,
88                  (unsigned int)cli->pid,
89                  request->data.sid);
90         if (CHECK_DEBUGLVL(DBGLVL_DEBUG)) {
91                 for (i = 0; i < num_sids; i++) {
92                         struct dom_sid_buf sidstr;
93                         D_NOTICE("%"PRIu32": %s\n",
94                                  i, dom_sid_str_buf(&sids[i], &sidstr));
95                 }
96         }
97
98         subreq = wb_lookupuseraliases_send(state, ev, domain, num_sids, sids);
99         if (tevent_req_nomem(subreq, req)) {
100                 return tevent_req_post(req, ev);
101         }
102         tevent_req_set_callback(subreq, winbindd_getsidaliases_done, req);
103         return req;
104 }
105
106 static void winbindd_getsidaliases_done(struct tevent_req *subreq)
107 {
108         struct tevent_req *req = tevent_req_callback_data(
109                 subreq, struct tevent_req);
110         struct winbindd_getsidaliases_state *state = tevent_req_data(
111                 req, struct winbindd_getsidaliases_state);
112         NTSTATUS status;
113
114         status = wb_lookupuseraliases_recv(subreq, state, &state->num_aliases,
115                                            &state->aliases);
116         TALLOC_FREE(subreq);
117         if (tevent_req_nterror(req, status)) {
118                 return;
119         }
120         tevent_req_done(req);
121 }
122
123 NTSTATUS winbindd_getsidaliases_recv(struct tevent_req *req,
124                                      struct winbindd_response *response)
125 {
126         struct winbindd_getsidaliases_state *state = tevent_req_data(
127                 req, struct winbindd_getsidaliases_state);
128         NTSTATUS status;
129         uint32_t i;
130         char *sidlist;
131
132         if (tevent_req_is_nterror(req, &status)) {
133                 D_WARNING("Failed with %s.\n", nt_errstr(status));
134                 return status;
135         }
136
137         sidlist = talloc_strdup(response, "");
138
139         D_NOTICE("Winbind external command GETSIDALIASES end.\n"
140                  "Received %"PRIu32" alias(es).\n",
141                  state->num_aliases);
142         for (i=0; i<state->num_aliases; i++) {
143                 struct dom_sid sid;
144                 struct dom_sid_buf tmp;
145                 sid_compose(&sid, &state->sid, state->aliases[i]);
146
147                 talloc_asprintf_addbuf(
148                         &sidlist, "%s\n", dom_sid_str_buf(&sid, &tmp));
149                 D_NOTICE("%"PRIu32": %s\n", i, dom_sid_str_buf(&sid, &tmp));
150         }
151
152         if (sidlist == NULL) {
153                 return NT_STATUS_NO_MEMORY;
154         }
155
156         response->extra_data.data = sidlist;
157         response->length += talloc_get_size(sidlist);
158         response->data.num_entries = state->num_aliases;
159         return NT_STATUS_OK;
160 }