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

7 files changed, 564 insertions, 0 deletions

diff --git a/sesman/auth.h b/sesman/auth.h
new file mode 100644
index 00000000..a2c35765
--- /dev/null
+++ b/sesman/auth.h
@@ -0,0 +1,34 @@
+/*
+   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
diff --git a/sesman/env.c b/sesman/env.c
new file mode 100644
index 00000000..9ea5d6bd
--- /dev/null
+++ b/sesman/env.c
@@ -0,0 +1,108 @@
+/*
+   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;
+}
diff --git a/sesman/env.h b/sesman/env.h
new file mode 100644
index 00000000..d53045c7
--- /dev/null
+++ b/sesman/env.h
@@ -0,0 +1,38 @@
+/*
+   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
+
diff --git a/sesman/session.c b/sesman/session.c
new file mode 100644
index 00000000..572114db
--- /dev/null
+++ b/sesman/session.c
@@ -0,0 +1,176 @@
+/*
+   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;
+}
+
diff --git a/sesman/session.h b/sesman/session.h
new file mode 100644
index 00000000..c8615c05
--- /dev/null
+++ b/sesman/session.h
@@ -0,0 +1,49 @@
+/*
+   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
+
diff --git a/sesman/tcp.c b/sesman/tcp.c
new file mode 100644
index 00000000..2bfa84c2
--- /dev/null
+++ b/sesman/tcp.c
@@ -0,0 +1,93 @@
+/*
+   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;
+}
+
diff --git a/sesman/tcp.h b/sesman/tcp.h
new file mode 100644
index 00000000..130c18a7
--- /dev/null
+++ b/sesman/tcp.h
@@ -0,0 +1,66 @@
+/*
+   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
+