You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
155 lines
3.6 KiB
155 lines
3.6 KiB
/*
|
|
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.
|
|
|
|
xrdp: A Remote Desktop Protocol server.
|
|
Copyright (C) Jay Sorg 2005-2007
|
|
*/
|
|
|
|
/**
|
|
*
|
|
* @file sig.c
|
|
* @brief signal handling functions
|
|
* @author Jay Sorg, Simone Fedele
|
|
*
|
|
*/
|
|
|
|
#include "sesman.h"
|
|
|
|
#include "signal.h"
|
|
|
|
extern int g_sck;
|
|
extern int g_pid;
|
|
extern struct config_sesman g_cfg;
|
|
|
|
/******************************************************************************/
|
|
void DEFAULT_CC
|
|
sig_sesman_shutdown(int sig)
|
|
{
|
|
log_message(LOG_LEVEL_INFO, "shutting down sesman %d", 1);
|
|
|
|
if (g_getpid() != g_pid)
|
|
{
|
|
LOG_DBG("g_getpid() [%d] differs from g_pid [%d]", (g_getpid()), g_pid);
|
|
return;
|
|
}
|
|
|
|
LOG_DBG(" - getting signal %d pid %d", sig, g_getpid());
|
|
|
|
g_tcp_close(g_sck);
|
|
|
|
session_sigkill_all();
|
|
|
|
g_file_delete(SESMAN_PID_FILE);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
void DEFAULT_CC
|
|
sig_sesman_reload_cfg(int sig)
|
|
{
|
|
struct config_sesman cfg;
|
|
|
|
log_message(LOG_LEVEL_WARNING, "receiving SIGHUP %d", 1);
|
|
|
|
if (g_getpid() != g_pid)
|
|
{
|
|
LOG_DBG("g_getpid() [%d] differs from g_pid [%d]", g_getpid(), g_pid);
|
|
return;
|
|
}
|
|
|
|
if (config_read(&cfg) != 0)
|
|
{
|
|
log_message(LOG_LEVEL_ERROR, "error reading config - keeping old cfg");
|
|
return;
|
|
}
|
|
g_cfg = cfg;
|
|
|
|
log_message(LOG_LEVEL_INFO, "configuration reloaded");
|
|
}
|
|
|
|
/******************************************************************************/
|
|
void DEFAULT_CC
|
|
sig_sesman_session_end(int sig)
|
|
{
|
|
int pid;
|
|
|
|
if (g_getpid() != g_pid)
|
|
{
|
|
return;
|
|
}
|
|
pid = g_waitchild();
|
|
if (pid > 0)
|
|
{
|
|
session_kill(pid);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
void* DEFAULT_CC
|
|
sig_handler_thread(void* arg)
|
|
{
|
|
int recv_signal;
|
|
sigset_t sigmask;
|
|
sigset_t oldmask;
|
|
sigset_t waitmask;
|
|
|
|
/* mask signals to be able to wait for them... */
|
|
sigfillset(&sigmask);
|
|
/* it is a good idea not to block SIGILL SIGSEGV */
|
|
/* SIGFPE -- see sigaction(2) NOTES */
|
|
pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
|
|
|
|
/* building the signal wait mask... */
|
|
sigemptyset(&waitmask);
|
|
sigaddset(&waitmask, SIGHUP);
|
|
sigaddset(&waitmask, SIGCHLD);
|
|
sigaddset(&waitmask, SIGTERM);
|
|
// sigaddset(&waitmask, SIGFPE);
|
|
// sigaddset(&waitmask, SIGILL);
|
|
// sigaddset(&waitmask, SIGSEGV);
|
|
|
|
do
|
|
{
|
|
LOG_DBG("calling sigwait()",0);
|
|
sigwait(&waitmask, &recv_signal);
|
|
|
|
switch (recv_signal)
|
|
{
|
|
case SIGHUP:
|
|
//reload cfg
|
|
LOG_DBG("sesman received SIGHUP",0);
|
|
//return 0;
|
|
break;
|
|
case SIGCHLD:
|
|
/* a session died */
|
|
LOG_DBG("sesman received SIGCHLD",0);
|
|
sig_sesman_session_end(SIGCHLD);
|
|
break;
|
|
/*case SIGKILL;
|
|
/ * we die * /
|
|
LOG_DBG("sesman received SIGKILL",0);
|
|
sig_sesman_shutdown(recv_signal);
|
|
break;*/
|
|
case SIGTERM:
|
|
/* we die */
|
|
LOG_DBG("sesman received SIGTERM",0);
|
|
sig_sesman_shutdown(recv_signal);
|
|
break;
|
|
}
|
|
} while (1);
|
|
|
|
return 0;
|
|
}
|
|
|