source: vendor/3.5.2/source4/winbind/wb_server.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 16 years ago

Samba 3.5.0: Initial import
File size: 7.1 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 Main winbindd server routines
4
5 Copyright (C) Stefan Metzmacher 2005
6 Copyright (C) Andrew Tridgell 2005
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
20*/
21
22#include "includes.h"
23#include "lib/socket/socket.h"
24#include "../lib/util/dlinklist.h"
25#include "lib/events/events.h"
26#include "smbd/service_task.h"
27#include "smbd/process_model.h"
28#include "smbd/service_stream.h"
29#include "nsswitch/winbind_nss_config.h"
30#include "winbind/wb_server.h"
31#include "lib/stream/packet.h"
32#include "smbd/service.h"
33#include "param/secrets.h"
34#include "param/param.h"
35
36void wbsrv_terminate_connection(struct wbsrv_connection *wbconn, const char *reason)
37{
38 stream_terminate_connection(wbconn->conn, reason);
39}
40
41/*
42 called on a tcp recv error
43*/
44static void wbsrv_recv_error(void *private_data, NTSTATUS status)
45{
46 struct wbsrv_connection *wbconn = talloc_get_type(private_data, struct wbsrv_connection);
47 wbsrv_terminate_connection(wbconn, nt_errstr(status));
48}
49
50static void wbsrv_accept(struct stream_connection *conn)
51{
52 struct wbsrv_listen_socket *listen_socket = talloc_get_type(conn->private_data,
53 struct wbsrv_listen_socket);
54 struct wbsrv_connection *wbconn;
55
56 wbconn = talloc_zero(conn, struct wbsrv_connection);
57 if (!wbconn) {
58 stream_terminate_connection(conn, "wbsrv_accept: out of memory");
59 return;
60 }
61 wbconn->conn = conn;
62 wbconn->listen_socket = listen_socket;
63 wbconn->lp_ctx = listen_socket->service->task->lp_ctx;
64 conn->private_data = wbconn;
65
66 wbconn->packet = packet_init(wbconn);
67 if (wbconn->packet == NULL) {
68 wbsrv_terminate_connection(wbconn, "wbsrv_accept: out of memory");
69 return;
70 }
71 packet_set_private(wbconn->packet, wbconn);
72 packet_set_socket(wbconn->packet, conn->socket);
73 packet_set_callback(wbconn->packet, wbsrv_samba3_process);
74 packet_set_full_request(wbconn->packet, wbsrv_samba3_packet_full_request);
75 packet_set_error_handler(wbconn->packet, wbsrv_recv_error);
76 packet_set_event_context(wbconn->packet, conn->event.ctx);
77 packet_set_fde(wbconn->packet, conn->event.fde);
78 packet_set_serialise(wbconn->packet);
79}
80
81/*
82 receive some data on a winbind connection
83*/
84static void wbsrv_recv(struct stream_connection *conn, uint16_t flags)
85{
86 struct wbsrv_connection *wbconn = talloc_get_type(conn->private_data,
87 struct wbsrv_connection);
88 packet_recv(wbconn->packet);
89
90}
91
92/*
93 called when we can write to a connection
94*/
95static void wbsrv_send(struct stream_connection *conn, uint16_t flags)
96{
97 struct wbsrv_connection *wbconn = talloc_get_type(conn->private_data,
98 struct wbsrv_connection);
99 packet_queue_run(wbconn->packet);
100}
101
102static const struct stream_server_ops wbsrv_ops = {
103 .name = "winbind samba3 protocol",
104 .accept_connection = wbsrv_accept,
105 .recv_handler = wbsrv_recv,
106 .send_handler = wbsrv_send
107};
108
109/*
110 startup the winbind task
111*/
112static void winbind_task_init(struct task_server *task)
113{
114 uint16_t port = 1;
115 const struct model_ops *model_ops;
116 NTSTATUS status;
117 struct wbsrv_service *service;
118 struct wbsrv_listen_socket *listen_socket;
119
120 task_server_set_title(task, "task[winbind]");
121
122 /* within the winbind task we want to be a single process, so
123 ask for the single process model ops and pass these to the
124 stream_setup_socket() call. */
125 model_ops = process_model_startup(task->event_ctx, "single");
126 if (!model_ops) {
127 task_server_terminate(task,
128 "Can't find 'single' process model_ops", true);
129 return;
130 }
131
132 /* Make sure the directory for the Samba3 socket exists, and is of the correct permissions */
133 if (!directory_create_or_exist(lp_winbindd_socket_directory(task->lp_ctx), geteuid(), 0755)) {
134 task_server_terminate(task,
135 "Cannot create winbindd pipe directory", true);
136 return;
137 }
138
139 /* Make sure the directory for the Samba3 socket exists, and is of the correct permissions */
140 if (!directory_create_or_exist(lp_winbindd_privileged_socket_directory(task->lp_ctx), geteuid(), 0750)) {
141 task_server_terminate(task,
142 "Cannot create winbindd privileged pipe directory", true);
143 return;
144 }
145
146 service = talloc_zero(task, struct wbsrv_service);
147 if (!service) goto nomem;
148 service->task = task;
149
150 status = wbsrv_setup_domains(service);
151 if (!NT_STATUS_IS_OK(status)) {
152 task_server_terminate(task, nt_errstr(status), true);
153 return;
154 }
155
156 service->idmap_ctx = idmap_init(service, task->event_ctx, task->lp_ctx);
157 if (service->idmap_ctx == NULL) {
158 task_server_terminate(task, "Failed to load idmap database", true);
159 return;
160 }
161
162 /* setup the unprivileged samba3 socket */
163 listen_socket = talloc(service, struct wbsrv_listen_socket);
164 if (!listen_socket) goto nomem;
165 listen_socket->socket_path = talloc_asprintf(listen_socket, "%s/%s",
166 lp_winbindd_socket_directory(task->lp_ctx),
167 WINBINDD_SAMBA3_SOCKET);
168 if (!listen_socket->socket_path) goto nomem;
169 listen_socket->service = service;
170 listen_socket->privileged = false;
171 status = stream_setup_socket(task->event_ctx, task->lp_ctx, model_ops,
172 &wbsrv_ops, "unix",
173 listen_socket->socket_path, &port,
174 lp_socket_options(task->lp_ctx),
175 listen_socket);
176 if (!NT_STATUS_IS_OK(status)) goto listen_failed;
177
178 /* setup the privileged samba3 socket */
179 listen_socket = talloc(service, struct wbsrv_listen_socket);
180 if (!listen_socket) goto nomem;
181 listen_socket->socket_path
182 = service->priv_socket_path
183 = talloc_asprintf(listen_socket, "%s/%s",
184 lp_winbindd_privileged_socket_directory(task->lp_ctx),
185 WINBINDD_SAMBA3_SOCKET);
186 if (!listen_socket->socket_path) goto nomem;
187 if (!listen_socket->socket_path) goto nomem;
188 listen_socket->service = service;
189 listen_socket->privileged = true;
190 status = stream_setup_socket(task->event_ctx, task->lp_ctx, model_ops,
191 &wbsrv_ops, "unix",
192 listen_socket->socket_path, &port,
193 lp_socket_options(task->lp_ctx),
194 listen_socket);
195 if (!NT_STATUS_IS_OK(status)) goto listen_failed;
196
197 status = wbsrv_init_irpc(service);
198 if (!NT_STATUS_IS_OK(status)) goto irpc_failed;
199
200 return;
201
202listen_failed:
203 DEBUG(0,("stream_setup_socket(path=%s) failed - %s\n",
204 listen_socket->socket_path, nt_errstr(status)));
205 task_server_terminate(task, nt_errstr(status), true);
206 return;
207irpc_failed:
208 DEBUG(0,("wbsrv_init_irpc() failed - %s\n",
209 nt_errstr(status)));
210 task_server_terminate(task, nt_errstr(status), true);
211 return;
212nomem:
213 task_server_terminate(task, nt_errstr(NT_STATUS_NO_MEMORY), true);
214 return;
215}
216
217/*
218 register ourselves as a available server
219*/
220NTSTATUS server_service_winbind_init(void)
221{
222 return register_server_service("winbind", winbind_task_init);
223}
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