2 Unix SMB/CIFS implementation.
3 process model: standard (1 process per client connection)
4 Copyright (C) Andrew Tridgell 1992-2003
5 Copyright (C) James J Myers 2003 <myersjj@samba.org>
6 Copyright (C) Stefan (metze) Metzmacher 2004
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 2 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, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 called when the process model is selected
28 static void standard_model_startup(void)
30 signal(SIGCHLD, SIG_IGN);
35 called when a listening socket becomes readable
37 static void standard_accept_connection(struct event_context *ev, struct fd_event *srv_fde, time_t t, uint16_t flags)
40 struct socket_context *sock;
41 struct server_socket *server_socket = srv_fde->private;
42 struct server_connection *conn;
45 /* accept an incoming connection. */
46 status = socket_accept(server_socket->socket, &sock, 0);
47 if (!NT_STATUS_IS_OK(status)) {
48 DEBUG(0,("accept_connection_single: accept: %s\n",
56 /* parent or error code ... */
59 /* go back to the event loop */
65 /* close all the listening sockets */
66 event_remove_fd_all_handler(ev, standard_accept_connection);
68 /* tdb needs special fork handling */
69 if (tdb_reopen_all() == -1) {
70 DEBUG(0,("standard_accept_connection: tdb_reopen_all failed.\n"));
73 /* Ensure that the forked children do not expose identical random streams */
75 set_need_random_reseed();
77 conn = server_setup_connection(ev, server_socket, sock, t);
79 DEBUG(0,("server_setup_connection(ev, server_socket, sock, t) failed\n"));
83 DLIST_ADD(server_socket->connection_list,conn);
85 /* return to the event loop */
89 /* called when a SMB connection goes down */
90 static void standard_terminate_connection(struct server_connection *conn, const char *reason)
92 DEBUG(2,("single_terminate_connection: reason[%s]\n",reason));
96 conn->service->ops->close_connection(conn,reason);
99 if (conn->server_socket) {
100 DLIST_REMOVE(conn->server_socket->connection_list,conn);
103 server_destroy_connection(conn);
106 /* terminate this process */
110 static int standard_get_id(struct smbsrv_request *req)
112 return (int)req->smb_conn->pid;
115 static void standard_exit_server(struct server_context *srv_ctx, const char *reason)
117 DEBUG(1,("standard_exit_server: reason[%s]\n",reason));
121 initialise the standard process model, registering ourselves with the process model subsystem
123 NTSTATUS process_model_standard_init(void)
126 struct model_ops ops;
130 /* fill in our name */
131 ops.name = "standard";
133 /* fill in all the operations */
134 ops.model_startup = standard_model_startup;
135 ops.accept_connection = standard_accept_connection;
136 ops.terminate_connection = standard_terminate_connection;
137 ops.exit_server = standard_exit_server;
138 ops.get_id = standard_get_id;
140 /* register ourselves with the PROCESS_MODEL subsystem. */
141 ret = register_backend("process_model", &ops);
142 if (!NT_STATUS_IS_OK(ret)) {
143 DEBUG(0,("Failed to register process_model 'standard'!\n"));