2 Unix SMB/CIFS implementation.
3 Main winbindd server routines
5 Copyright (C) Stefan Metzmacher 2005
6 Copyright (C) Andrew Tridgell 2005
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.
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.
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/>.
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"
36 void wbsrv_terminate_connection(struct wbsrv_connection *wbconn, const char *reason)
38 stream_terminate_connection(wbconn->conn, reason);
42 called on a tcp recv error
44 static void wbsrv_recv_error(void *private, NTSTATUS status)
46 struct wbsrv_connection *wbconn = talloc_get_type(private, struct wbsrv_connection);
47 wbsrv_terminate_connection(wbconn, nt_errstr(status));
50 static void wbsrv_accept(struct stream_connection *conn)
52 struct wbsrv_listen_socket *listen_socket = talloc_get_type(conn->private,
53 struct wbsrv_listen_socket);
54 struct wbsrv_connection *wbconn;
56 wbconn = talloc_zero(conn, struct wbsrv_connection);
58 stream_terminate_connection(conn, "wbsrv_accept: out of memory");
62 wbconn->listen_socket = listen_socket;
63 wbconn->lp_ctx = listen_socket->service->task->lp_ctx;
64 conn->private = wbconn;
66 wbconn->packet = packet_init(wbconn);
67 if (wbconn->packet == NULL) {
68 wbsrv_terminate_connection(wbconn, "wbsrv_accept: out of memory");
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);
82 receive some data on a winbind connection
84 static void wbsrv_recv(struct stream_connection *conn, uint16_t flags)
86 struct wbsrv_connection *wbconn = talloc_get_type(conn->private,
87 struct wbsrv_connection);
88 packet_recv(wbconn->packet);
93 called when we can write to a connection
95 static void wbsrv_send(struct stream_connection *conn, uint16_t flags)
97 struct wbsrv_connection *wbconn = talloc_get_type(conn->private,
98 struct wbsrv_connection);
99 packet_queue_run(wbconn->packet);
102 static 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
110 startup the winbind task
112 static void winbind_task_init(struct task_server *task)
115 const struct model_ops *model_ops;
117 struct wbsrv_service *service;
118 struct wbsrv_listen_socket *listen_socket;
120 task_server_set_title(task, "task[winbind]");
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_byname("single");
127 task_server_terminate(task,
128 "Can't find 'single' process model_ops");
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");
139 service = talloc_zero(task, struct wbsrv_service);
140 if (!service) goto nomem;
141 service->task = task;
143 service->primary_sid = secrets_get_domain_sid(service,
146 lp_workgroup(task->lp_ctx));
147 if (service->primary_sid == NULL) {
148 task_server_terminate(
149 task, nt_errstr(NT_STATUS_CANT_ACCESS_DOMAIN_INFO));
153 service->idmap_ctx = idmap_init(service, task->event_ctx, task->lp_ctx);
154 if (service->idmap_ctx == NULL) {
155 task_server_terminate(task, "Failed to load idmap database");
159 /* setup the unprivileged samba3 socket */
160 listen_socket = talloc(service, struct wbsrv_listen_socket);
161 if (!listen_socket) goto nomem;
162 listen_socket->socket_path = talloc_asprintf(listen_socket, "%s/%s",
163 lp_winbindd_socket_directory(task->lp_ctx),
164 WINBINDD_SAMBA3_SOCKET);
165 if (!listen_socket->socket_path) goto nomem;
166 listen_socket->service = service;
167 listen_socket->privileged = false;
168 status = stream_setup_socket(task->event_ctx, task->lp_ctx, model_ops,
170 listen_socket->socket_path, &port,
171 lp_socket_options(task->lp_ctx),
173 if (!NT_STATUS_IS_OK(status)) goto listen_failed;
175 /* setup the privileged samba3 socket */
176 listen_socket = talloc(service, struct wbsrv_listen_socket);
177 if (!listen_socket) goto nomem;
178 listen_socket->socket_path =
179 smbd_tmp_path(listen_socket, task->lp_ctx,
180 WINBINDD_SAMBA3_PRIVILEGED_SOCKET);
181 if (!listen_socket->socket_path) goto nomem;
182 listen_socket->service = service;
183 listen_socket->privileged = true;
184 status = stream_setup_socket(task->event_ctx, task->lp_ctx, model_ops,
186 listen_socket->socket_path, &port,
187 lp_socket_options(task->lp_ctx),
189 if (!NT_STATUS_IS_OK(status)) goto listen_failed;
191 status = wbsrv_init_irpc(service);
192 if (!NT_STATUS_IS_OK(status)) goto irpc_failed;
197 DEBUG(0,("stream_setup_socket(path=%s) failed - %s\n",
198 listen_socket->socket_path, nt_errstr(status)));
199 task_server_terminate(task, nt_errstr(status));
202 DEBUG(0,("wbsrv_init_irpc() failed - %s\n",
204 task_server_terminate(task, nt_errstr(status));
207 task_server_terminate(task, nt_errstr(NT_STATUS_NO_MEMORY));
212 register ourselves as a available server
214 NTSTATUS server_service_winbind_init(void)
216 return register_server_service("winbind", winbind_task_init);