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.
25 #include "dlinklist.h"
26 #include "smb_server/smb_server.h"
27 #include "process_model.h"
30 called when the process model is selected
32 static void standard_model_startup(void)
34 signal(SIGCHLD, SIG_IGN);
39 called when a listening socket becomes readable
41 static void standard_accept_connection(struct event_context *ev, struct fd_event *srv_fde,
42 time_t t, uint16_t flags)
45 struct socket_context *sock;
46 struct server_socket *server_socket = srv_fde->private;
47 struct server_connection *conn;
50 /* accept an incoming connection. */
51 status = socket_accept(server_socket->socket, &sock);
52 if (!NT_STATUS_IS_OK(status)) {
53 DEBUG(0,("standard_accept_connection: accept: %s\n",
61 /* parent or error code ... */
64 /* go back to the event loop */
70 /* close all the listening sockets */
71 service_close_listening_sockets(server_socket->service->srv_ctx);
73 /* we don't care if the dup fails, as its only a select()
77 /* tdb needs special fork handling */
78 if (tdb_reopen_all() == -1) {
79 DEBUG(0,("standard_accept_connection: tdb_reopen_all failed.\n"));
82 /* Ensure that the forked children do not expose identical random streams */
84 set_need_random_reseed();
86 conn = server_setup_connection(ev, server_socket, sock, t, getpid());
88 DEBUG(0,("server_setup_connection(ev, server_socket, sock, t) failed\n"));
92 talloc_steal(conn, sock);
94 DLIST_ADD(server_socket->connection_list,conn);
96 /* return to the event loop */
100 /* called when a SMB connection goes down */
101 static void standard_terminate_connection(struct server_connection *conn, const char *reason)
103 DEBUG(2,("standard_terminate_connection: reason[%s]\n",reason));
106 talloc_free(conn->service->srv_ctx);
109 /* this init_iconv() has the effect of freeing the iconv context memory,
110 which makes leak checking easier */
113 /* the secrets db should really hang off the connection structure */
116 /* terminate this process */
120 static int standard_get_id(struct smbsrv_request *req)
122 return (int)req->smb_conn->pid;
125 static void standard_exit_server(struct server_context *srv_ctx, const char *reason)
127 DEBUG(1,("standard_exit_server: reason[%s]\n",reason));
131 initialise the standard process model, registering ourselves with the process model subsystem
133 NTSTATUS process_model_standard_init(void)
136 struct model_ops ops;
140 /* fill in our name */
141 ops.name = "standard";
143 /* fill in all the operations */
144 ops.model_startup = standard_model_startup;
145 ops.accept_connection = standard_accept_connection;
146 ops.terminate_connection = standard_terminate_connection;
147 ops.exit_server = standard_exit_server;
148 ops.get_id = standard_get_id;
150 /* register ourselves with the PROCESS_MODEL subsystem. */
151 ret = register_backend("process_model", &ops);
152 if (!NT_STATUS_IS_OK(ret)) {
153 DEBUG(0,("Failed to register process_model 'standard'!\n"));