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/*
Unix SMB/CIFS implementation.
process model: process (1 process handles all client connections)
Copyright (C) Andrew Tridgell 2003
Copyright (C) James J Myers 2003 <myersjj@samba.org>
Copyright (C) Stefan (metze) Metzmacher 2004
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "events.h"
#include "dlinklist.h"
#include "smb_server/smb_server.h"
#include "process_model.h"
/*
called when the process model is selected
*/
static void single_model_init(struct server_context *server)
{
}
static void single_model_exit(struct server_context *server, const char *reason)
{
DEBUG(1,("single_exit_server: reason[%s]\n",reason));
talloc_free(server);
exit(0);
}
/*
called when a listening socket becomes readable
*/
static void single_accept_connection(struct event_context *ev, struct fd_event *srv_fde,
struct timeval t, uint16_t flags)
{
NTSTATUS status;
struct socket_context *sock;
struct server_stream_socket *stream_socket = srv_fde->private;
struct server_connection *conn;
/* accept an incoming connection. */
status = socket_accept(stream_socket->socket, &sock);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("accept_connection_single: accept: %s\n",
nt_errstr(status)));
return;
}
conn = server_setup_connection(ev, stream_socket, sock, t, socket_get_fd(sock));
if (!conn) {
DEBUG(10,("server_setup_connection failed\n"));
return;
}
talloc_steal(conn, sock);
/* return to event handling */
return;
}
/* called when a SMB connection goes down */
static void single_terminate_connection(struct server_connection *conn, const char *reason)
{
DEBUG(2,("single_terminate_connection: reason[%s]\n",reason));
if (conn) {
talloc_free(conn);
}
}
/*
called to create a new event context for a new task
*/
static void single_create_task(struct server_task *task)
{
task->task.id = (uint32_t)task;
task->event.ctx = task->service->server->event.ctx;
/* setup to receive internal messages on this connection */
task->messaging.ctx = messaging_init(task, task->task.id, task->event.ctx);
if (!task->messaging.ctx) {
server_terminate_task(task, "messaging_init() failed");
return;
}
task->task.ops->task_init(task);
return;
}
/*
called to exit from a server_task
*/
static void single_terminate_task(struct server_task *task, const char *reason)
{
DEBUG(1,("single_exit_server: reason[%s]\n",reason));
talloc_free(task);
return;
}
static const struct model_ops single_ops = {
.name = "single",
.model_init = single_model_init,
.model_exit = single_model_exit,
.accept_connection = single_accept_connection,
.terminate_connection = single_terminate_connection,
.create_task = single_create_task,
.terminate_task = single_terminate_task
};
/*
initialise the single process model, registering ourselves with the process model subsystem
*/
NTSTATUS process_model_single_init(void)
{
NTSTATUS ret;
/* register ourselves with the PROCESS_MODEL subsystem. */
ret = register_process_model(&single_ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register process_model 'single'!\n"));
return ret;
}
return ret;
}
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