source: trunk/server/source3/winbindd/wb_next_pwent.c

Last change on this file was 751, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.9
File size: 5.7 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 async next_pwent
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 "librpc/gen_ndr/ndr_wbint_c.h"
23#include "passdb/machine_sid.h"
24
25struct wb_next_pwent_state {
26 struct tevent_context *ev;
27 struct getpwent_state *gstate;
28 struct winbindd_pw *pw;
29};
30
31static void wb_next_pwent_fetch_done(struct tevent_req *subreq);
32static void wb_next_pwent_fill_done(struct tevent_req *subreq);
33
34static struct winbindd_domain *wb_next_find_domain(struct winbindd_domain *domain)
35{
36 if (domain == NULL) {
37 domain = domain_list();
38 } else {
39 domain = domain->next;
40 }
41
42 if ((domain != NULL)
43 && sid_check_is_domain(&domain->sid)) {
44 domain = domain->next;
45 }
46
47 if (domain == NULL) {
48 return NULL;
49 }
50
51 return domain;
52}
53
54struct tevent_req *wb_next_pwent_send(TALLOC_CTX *mem_ctx,
55 struct tevent_context *ev,
56 struct getpwent_state *gstate,
57 struct winbindd_pw *pw)
58{
59 struct tevent_req *req, *subreq;
60 struct wb_next_pwent_state *state;
61
62 req = tevent_req_create(mem_ctx, &state, struct wb_next_pwent_state);
63 if (req == NULL) {
64 return NULL;
65 }
66 state->ev = ev;
67 state->gstate = gstate;
68 state->pw = pw;
69
70 if (state->gstate->next_user >= state->gstate->num_users) {
71 TALLOC_FREE(state->gstate->users);
72
73 state->gstate->domain = wb_next_find_domain(state->gstate->domain);
74 if (state->gstate->domain == NULL) {
75 tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
76 return tevent_req_post(req, ev);
77 }
78 subreq = wb_query_user_list_send(state, state->ev,
79 state->gstate->domain);
80 if (tevent_req_nomem(subreq, req)) {
81 return tevent_req_post(req, ev);
82 }
83 tevent_req_set_callback(subreq, wb_next_pwent_fetch_done, req);
84 return req;
85 }
86
87 subreq = wb_fill_pwent_send(
88 state, state->ev,
89 &state->gstate->users[state->gstate->next_user],
90 state->pw);
91 if (tevent_req_nomem(subreq, req)) {
92 return tevent_req_post(req, ev);
93 }
94 tevent_req_set_callback(subreq, wb_next_pwent_fill_done, req);
95 return req;
96}
97
98static void wb_next_pwent_fetch_done(struct tevent_req *subreq)
99{
100 struct tevent_req *req = tevent_req_callback_data(
101 subreq, struct tevent_req);
102 struct wb_next_pwent_state *state = tevent_req_data(
103 req, struct wb_next_pwent_state);
104 NTSTATUS status;
105
106 status = wb_query_user_list_recv(subreq, state->gstate,
107 &state->gstate->num_users,
108 &state->gstate->users);
109 TALLOC_FREE(subreq);
110 if (!NT_STATUS_IS_OK(status)) {
111 /* Ignore errors here, just log it */
112 DEBUG(10, ("query_user_list for domain %s returned %s\n",
113 state->gstate->domain->name,
114 nt_errstr(status)));
115 state->gstate->num_users = 0;
116 }
117
118 if (state->gstate->num_users == 0) {
119 state->gstate->domain = state->gstate->domain->next;
120
121 if ((state->gstate->domain != NULL)
122 && sid_check_is_domain(&state->gstate->domain->sid)) {
123 state->gstate->domain = state->gstate->domain->next;
124 }
125
126 if (state->gstate->domain == NULL) {
127 tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
128 return;
129 }
130 subreq = wb_query_user_list_send(state, state->ev,
131 state->gstate->domain);
132 if (tevent_req_nomem(subreq, req)) {
133 return;
134 }
135 tevent_req_set_callback(subreq, wb_next_pwent_fetch_done, req);
136 return;
137 }
138
139 state->gstate->next_user = 0;
140
141 subreq = wb_fill_pwent_send(
142 state, state->ev,
143 &state->gstate->users[state->gstate->next_user],
144 state->pw);
145 if (tevent_req_nomem(subreq, req)) {
146 return;
147 }
148 tevent_req_set_callback(subreq, wb_next_pwent_fill_done, req);
149}
150
151static void wb_next_pwent_fill_done(struct tevent_req *subreq)
152{
153 struct tevent_req *req = tevent_req_callback_data(
154 subreq, struct tevent_req);
155 struct wb_next_pwent_state *state = tevent_req_data(
156 req, struct wb_next_pwent_state);
157 NTSTATUS status;
158
159 status = wb_fill_pwent_recv(subreq);
160 TALLOC_FREE(subreq);
161 /*
162 * When you try to enumerate users with 'getent passwd' and the user
163 * doesn't have a uid set we should just move on.
164 */
165 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
166 state->gstate->next_user += 1;
167
168 if (state->gstate->next_user >= state->gstate->num_users) {
169 TALLOC_FREE(state->gstate->users);
170
171 state->gstate->domain = wb_next_find_domain(state->gstate->domain);
172 if (state->gstate->domain == NULL) {
173 tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
174 return;
175 }
176
177 subreq = wb_query_user_list_send(state, state->ev,
178 state->gstate->domain);
179 if (tevent_req_nomem(subreq, req)) {
180 return;
181 }
182 tevent_req_set_callback(subreq, wb_next_pwent_fetch_done, req);
183 return;
184 }
185
186 subreq = wb_fill_pwent_send(state,
187 state->ev,
188 &state->gstate->users[state->gstate->next_user],
189 state->pw);
190 if (tevent_req_nomem(subreq, req)) {
191 return;
192 }
193 tevent_req_set_callback(subreq, wb_next_pwent_fill_done, req);
194
195 return;
196 } else if (tevent_req_nterror(req, status)) {
197 return;
198 }
199 state->gstate->next_user += 1;
200 tevent_req_done(req);
201}
202
203NTSTATUS wb_next_pwent_recv(struct tevent_req *req)
204{
205 return tevent_req_simple_recv_ntstatus(req);
206}
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