winbindd: Use dom_sid_str_buf
[nivanova/samba-autobuild/.git] / source3 / winbindd / winbindd_getpwnam.c
1 /*
2    Unix SMB/CIFS implementation.
3    async implementation of WINBINDD_GETPWNAM
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 "passdb/lookup_sid.h" /* only for LOOKUP_NAME_NO_NSS flag */
23 #include "libcli/security/dom_sid.h"
24
25 struct winbindd_getpwnam_state {
26         struct tevent_context *ev;
27         fstring namespace;
28         fstring domname;
29         fstring username;
30         struct dom_sid sid;
31         enum lsa_SidType type;
32         struct winbindd_pw pw;
33 };
34
35 static void winbindd_getpwnam_lookupname_done(struct tevent_req *subreq);
36 static void winbindd_getpwnam_done(struct tevent_req *subreq);
37
38 struct tevent_req *winbindd_getpwnam_send(TALLOC_CTX *mem_ctx,
39                                           struct tevent_context *ev,
40                                           struct winbindd_cli_state *cli,
41                                           struct winbindd_request *request)
42 {
43         struct tevent_req *req, *subreq;
44         struct winbindd_getpwnam_state *state;
45         char *domuser, *mapped_user;
46         NTSTATUS status;
47         bool ok;
48
49         req = tevent_req_create(mem_ctx, &state,
50                                 struct winbindd_getpwnam_state);
51         if (req == NULL) {
52                 return NULL;
53         }
54         state->ev = ev;
55
56         /* Ensure null termination */
57         request->data.username[sizeof(request->data.username)-1]='\0';
58
59         DBG_NOTICE("[%s (%u)] getpwnam %s\n",
60                    cli->client_name,
61                    (unsigned int)cli->pid,
62                    request->data.username);
63
64         domuser = request->data.username;
65
66         status = normalize_name_unmap(state, domuser, &mapped_user);
67
68         if (NT_STATUS_IS_OK(status)
69             || NT_STATUS_EQUAL(status, NT_STATUS_FILE_RENAMED)) {
70                 /* normalize_name_unmapped did something */
71                 domuser = mapped_user;
72         }
73
74         ok = parse_domain_user(domuser,
75                                state->namespace,
76                                state->domname,
77                                state->username);
78         if (!ok) {
79                 DEBUG(5, ("Could not parse domain user: %s\n", domuser));
80                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
81                 return tevent_req_post(req, ev);
82         }
83
84         subreq = wb_lookupname_send(state, ev,
85                                     state->namespace,
86                                     state->domname,
87                                     state->username,
88                                     LOOKUP_NAME_NO_NSS);
89         if (tevent_req_nomem(subreq, req)) {
90                 return tevent_req_post(req, ev);
91         }
92         tevent_req_set_callback(subreq, winbindd_getpwnam_lookupname_done,
93                                 req);
94         return req;
95 }
96
97 static void winbindd_getpwnam_lookupname_done(struct tevent_req *subreq)
98 {
99         struct tevent_req *req = tevent_req_callback_data(
100                 subreq, struct tevent_req);
101         struct winbindd_getpwnam_state *state = tevent_req_data(
102                 req, struct winbindd_getpwnam_state);
103         NTSTATUS status;
104
105         status = wb_lookupname_recv(subreq, &state->sid, &state->type);
106         TALLOC_FREE(subreq);
107         if (tevent_req_nterror(req, status)) {
108                 return;
109         }
110
111         subreq = wb_getpwsid_send(state, state->ev, &state->sid, &state->pw);
112         if (tevent_req_nomem(subreq, req)) {
113                 return;
114         }
115         tevent_req_set_callback(subreq, winbindd_getpwnam_done, req);
116 }
117
118 static void winbindd_getpwnam_done(struct tevent_req *subreq)
119 {
120         struct tevent_req *req = tevent_req_callback_data(
121                 subreq, struct tevent_req);
122         NTSTATUS status;
123
124         status = wb_getpwsid_recv(subreq);
125         TALLOC_FREE(subreq);
126         if (tevent_req_nterror(req, status)) {
127                 return;
128         }
129         tevent_req_done(req);
130 }
131
132 NTSTATUS winbindd_getpwnam_recv(struct tevent_req *req,
133                                 struct winbindd_response *response)
134 {
135         struct winbindd_getpwnam_state *state = tevent_req_data(
136                 req, struct winbindd_getpwnam_state);
137         NTSTATUS status;
138
139         if (tevent_req_is_nterror(req, &status)) {
140                 struct dom_sid_buf buf;
141                 DEBUG(5, ("Could not convert sid %s: %s\n",
142                           dom_sid_str_buf(&state->sid, &buf),
143                           nt_errstr(status)));
144                 return status;
145         }
146         response->data.pw = state->pw;
147         return NT_STATUS_OK;
148 }