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24d0587752
Fix talloc_steal in both cases to steal connected socket (from accept)
onto it's private structure, rather than stealing the bound socket.
Remove termination code from the prefork modal, we want the process to
still stay around, to serve future clients.
Andrew Bartlett and David Disseldorp
(This used to be commit 07590d893e)
125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/*
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Unix SMB/CIFS implementation.
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process model: process (1 process handles all client connections)
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Copyright (C) Andrew Tridgell 2003
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Copyright (C) James J Myers 2003 <myersjj@samba.org>
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Copyright (C) Stefan (metze) Metzmacher 2004
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "smbd/process_model.h"
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#include "system/filesys.h"
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#include "cluster/cluster.h"
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/*
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called when the process model is selected
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*/
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static void single_model_init(struct event_context *ev)
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{
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}
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/*
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called when a listening socket becomes readable.
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*/
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static void single_accept_connection(struct event_context *ev,
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struct loadparm_context *lp_ctx,
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struct socket_context *listen_socket,
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void (*new_conn)(struct event_context *,
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struct loadparm_context *,
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struct socket_context *,
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struct server_id , void *),
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void *private)
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{
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NTSTATUS status;
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struct socket_context *connected_socket;
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/* accept an incoming connection. */
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status = socket_accept(listen_socket, &connected_socket);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0,("single_accept_connection: accept: %s\n", nt_errstr(status)));
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/* this looks strange, but is correct.
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We can only be here if woken up from select, due to
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an incomming connection.
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We need to throttle things until the system clears
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enough resources to handle this new socket.
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If we don't then we will spin filling the log and
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causing more problems. We don't panic as this is
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probably a temporary resource constraint */
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sleep(1);
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return;
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}
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talloc_steal(private, connected_socket);
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/* The cluster_id(0, fd) cannot collide with the incrementing
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* task below, as the first component is 0, not 1 */
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new_conn(ev, lp_ctx, connected_socket,
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cluster_id(0, socket_get_fd(connected_socket)), private);
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}
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/*
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called to startup a new task
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*/
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static void single_new_task(struct event_context *ev,
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struct loadparm_context *lp_ctx,
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const char *service_name,
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void (*new_task)(struct event_context *, struct loadparm_context *, struct server_id, void *),
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void *private)
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{
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static uint32_t taskid = 0;
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/* We use 1 so we cannot collide in with cluster ids generated
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* in the accept connection above, and unlikly to collide with
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* PIDs from process modal standard (don't run samba as
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* init) */
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new_task(ev, lp_ctx, cluster_id(1, taskid++), private);
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}
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/* called when a task goes down */
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static void single_terminate(struct event_context *ev, const char *reason)
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{
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DEBUG(2,("single_terminate: reason[%s]\n",reason));
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}
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/* called to set a title of a task or connection */
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static void single_set_title(struct event_context *ev, const char *title)
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{
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}
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const struct model_ops single_ops = {
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.name = "single",
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.model_init = single_model_init,
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.new_task = single_new_task,
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.accept_connection = single_accept_connection,
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.terminate = single_terminate,
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.set_title = single_set_title,
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};
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/*
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initialise the single process model, registering ourselves with the
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process model subsystem
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*/
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NTSTATUS process_model_single_init(void)
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{
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return register_process_model(&single_ops);
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}
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