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/*
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
session manager
linux only
*/
//#include "d3des.h"
//#include "arch.h"
//#include "os_calls.h"
#include "sesman.h"
//#include "config.h"
//#include "env.h"
extern unsigned char g_fixedkey[8];
extern struct session_item g_session_items[100]; /* sesman.h */
extern struct sesman_config g_cfg; /* config.h */
/******************************************************************************/
struct session_item* DEFAULT_CC
session_find_item(char* name, int width, int height, int bpp)
{
int i;
for (i = 0; i < 100; i++)
{
if (g_strncmp(name, g_session_items[i].name, 255) == 0 &&
g_session_items[i].width == width &&
g_session_items[i].height == height &&
g_session_items[i].bpp == bpp)
{
return g_session_items + i;
}
}
return 0;
}
/******************************************************************************/
/* returns non zero if there is an xserver running on this display */
static int DEFAULT_CC
x_server_running(int display)
{
char text[256];
g_sprintf(text, "/tmp/.X11-unix/X%d", display);
return g_file_exist(text);
}
/******************************************************************************/
/* returns 0 if error else the display number the session was started on */
int DEFAULT_CC
session_start(int width, int height, int bpp, char* username, char* password,
long data)
{
int display;
int pid;
int wmpid;
int xpid;
char geometry[32];
char depth[32];
char screen[32];
char cur_dir[256];
char text[256];
char passwd_file[256];
g_get_current_dir(cur_dir, 255);
display = 10;
while (x_server_running(display) && display < 50)
{
display++;
}
if (display >= 50)
{
return 0;
}
wmpid = 0;
pid = g_fork();
if (pid == -1)
{
}
else if (pid == 0) /* child */
{
g_unset_signals();
auth_start_session(data, display);
g_sprintf(geometry, "%dx%d", width, height);
g_sprintf(depth, "%d", bpp);
g_sprintf(screen, ":%d", display);
wmpid = g_fork();
if (wmpid == -1)
{
}
else if (wmpid == 0) /* child */
{
/* give X a bit to start */
g_sleep(1000);
env_set_user(username, 0, display);
if (x_server_running(display))
{
auth_set_env(data);
/* try to execute user window manager if enabled */
if (g_cfg.enable_user_wm)
{
g_sprintf(text,"%s/%s", g_getenv("HOME"), g_cfg.user_wm);
if (g_file_exist(text))
{
g_execlp3(text, g_cfg.user_wm, 0);
}
}
/* if we're here something happened to g_execlp3
so we try running the default window manager */
g_sprintf(text, "%s/%s", cur_dir, g_cfg.default_wm);
g_execlp3(text, g_cfg.default_wm, 0);
/* still a problem starting window manager just start xterm */
g_execlp3("xterm", "xterm", 0);
/* should not get here */
}
g_printf("error starting window manager\n");
g_exit(0);
}
else /* parent */
{
xpid = g_fork();
if (xpid == -1)
{
}
else if (xpid == 0) /* child */
{
env_set_user(username, passwd_file, display);
env_check_password_file(passwd_file, password);
g_execlp11("Xvnc", "Xvnc", screen, "-geometry", geometry,
"-depth", depth, "-bs", "-rfbauth", passwd_file, 0);
/* should not get here */
g_printf("error\n");
g_exit(0);
}
else /* parent */
{
g_waitpid(wmpid);
g_sigterm(xpid);
g_sigterm(wmpid);
g_sleep(1000);
auth_end(data);
g_exit(0);
}
}
}
else /* parent */
{
g_session_items[display].pid = pid;
g_strcpy(g_session_items[display].name, username);
g_session_items[display].display = display;
g_session_items[display].width = width;
g_session_items[display].height = height;
g_session_items[display].bpp = bpp;
g_session_items[display].data = data;
g_sleep(5000);
}
return display;
}
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