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Adding auth.h env.c env.h session.c session.h tcp.c tcp.h

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ulab-original
ilsimo 19 years ago
parent 534b2691cd
commit c2fda67a1c
7 changed files with 564 additions and 0 deletions
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34
sesman/auth.h
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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 - main header
*/
#ifndef AUTH_H
#define AUTH_H
long DEFAULT_CC
auth_userpass(char* user, char* pass);
int DEFAULT_CC
auth_start_session(long in_val, int in_display);
int DEFAULT_CC
auth_end(long in_val);
int DEFAULT_CC
auth_set_env(long in_val);
#endif

108
sesman/env.c
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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
enc.c: user environment handling code
*/
//#include "d3des.h"
//#include "arch.h"
//#include "parse.h"
//#include "os_calls.h"
#include "sesman.h"
//#include "config.h"
//#include "tcp.h"
//#include "sig.h"
//#include "session.h"
//#include "env.h"
//int g_sck;
//extern int g_pid;
extern unsigned char g_fixedkey[8];
//struct session_item g_session_items[100]; /* sesman.h */
//struct sesman_config g_cfg; /* config.h */
/******************************************************************************/
int DEFAULT_CC
env_check_password_file(char* filename, char* password)
{
char encryptedPasswd[16];
int fd;
g_memset(encryptedPasswd, 0, 16);
g_strncpy(encryptedPasswd, password, 8);
rfbDesKey(g_fixedkey, 0);
rfbDes(encryptedPasswd, encryptedPasswd);
fd = g_file_open(filename);
if (fd == 0)
{
return 1;
}
g_file_write(fd, encryptedPasswd, 8);
g_file_close(fd);
g_set_file_rights(filename, 1, 1); /* set read and write flags */
return 0;
}
/******************************************************************************/
int DEFAULT_CC
env_set_user(char* username, char* passwd_file, int display)
{
int error;
int pw_uid;
int pw_gid;
int uid;
char pw_shell[256];
char pw_dir[256];
char pw_gecos[256];
char text[256];
error = g_getuser_info(username, &pw_gid, &pw_uid, pw_shell, pw_dir,
pw_gecos);
if (error == 0)
{
error = g_setgid(pw_gid);
if (error == 0)
{
uid = pw_uid;
error = g_setuid(uid);
}
if (error == 0)
{
g_clearenv();
g_setenv("SHELL", pw_shell, 1);
g_setenv("PATH", "/bin:/usr/bin:/usr/X11R6/bin:/usr/local/bin", 1);
g_setenv("USER", username, 1);
g_sprintf(text, "%d", uid);
g_setenv("UID", text, 1);
g_setenv("HOME", pw_dir, 1);
g_set_current_dir(pw_dir);
g_sprintf(text, ":%d.0", display);
g_setenv("DISPLAY", text, 1);
if (passwd_file != 0)
{
g_mkdir(".vnc");
g_sprintf(passwd_file, "%s/.vnc/sesman_passwd", pw_dir);
}
}
}
return error;
}

38
sesman/env.h
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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
env.h: user environment handling code declarations
*/
#ifndef ENV_H
#define ENV_H
/******************************************************************************/
int DEFAULT_CC
env_check_password_file(char* filename, char* password);
/******************************************************************************/
int DEFAULT_CC
env_set_user(char* username, char* passwd_file, int display);
#endif

176
sesman/session.c
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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;
}

49
sesman/session.h
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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
*/
#ifndef SESSION_H
#define SESSION_H
struct session_item
{
char name[256];
int pid; /* pid of sesman waiting for wm to end */
int display;
int width;
int height;
int bpp;
long data;
};
/******************************************************************************/
struct session_item* DEFAULT_CC
session_find_item(char* name, int width, int height, int bpp);
/******************************************************************************/
/* 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);
#endif

93
sesman/tcp.c
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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
tcp.c: tcp stream funcions
*/
#include "sesman.h"
/*****************************************************************************/
int DEFAULT_CC
tcp_force_recv(int sck, char* data, int len)
{
int rcvd;
while (len > 0)
{
rcvd = g_tcp_recv(sck, data, len, 0);
if (rcvd == -1)
{
if (g_tcp_last_error_would_block(sck))
{
g_sleep(1);
}
else
{
return 1;
}
}
else if (rcvd == 0)
{
return 1;
}
else
{
data += rcvd;
len -= rcvd;
}
}
return 0;
}
/*****************************************************************************/
int DEFAULT_CC
tcp_force_send(int sck, char* data, int len)
{
int sent;
while (len > 0)
{
sent = g_tcp_send(sck, data, len, 0);
if (sent == -1)
{
if (g_tcp_last_error_would_block(sck))
{
g_sleep(1);
}
else
{
return 1;
}
}
else if (sent == 0)
{
return 1;
}
else
{
data += sent;
len -= sent;
}
}
return 0;
}

66
sesman/tcp.h
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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
tcp.h: tcp stream functions declarations
*/
/**
*
* @file tcp stream functions
*
*/
#ifndef TCP_H
#define TCP_H
/**
*
* force receiving data from tcp stream
*
* @param sck the socket to read from
* @param data buffer
* @param len buffer size
*
* @return 0: ok, 1: error
*
*/
int DEFAULT_CC
tcp_force_recv(int sck, char* data, int len);
/**
*
* force sending data to tcp stream
*
* @param sck the socket to write to
* @param data buffer
* @param len buffer size
*
* @return 0: ok, 1: error
*
*/
int DEFAULT_CC
tcp_force_send(int sck, char* data, int len);
#endif
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