static void DEFAULT_CC
session_start_sessvc(int xpid, int wmpid, long data)
{
struct list* sessvc_params;
char wmpid_str[25];
char xpid_str[25];
char exe_path[262];
int i;
/* new style waiting for clients */
g_sprintf(wmpid_str, "%d", wmpid);
g_sprintf(xpid_str, "%d", xpid);
log_message(&(g_cfg->log), LOG_LEVEL_INFO,
"starting xrdp-sessvc - xpid=%s - wmpid=%s",
xpid_str, wmpid_str);
sessvc_params = list_create();
sessvc_params->auto_free = 1;
/* building parameters */
g_snprintf(exe_path, 261, "%s/xrdp-sessvc", XRDP_SBIN_PATH);
list_add_item(sessvc_params, (long)g_strdup(exe_path));
list_add_item(sessvc_params, (long)g_strdup(xpid_str));
list_add_item(sessvc_params, (long)g_strdup(wmpid_str));
list_add_item(sessvc_params, 0); /* mandatory */
/* executing sessvc */
g_execvp(exe_path, ((char**)sessvc_params->items));
/* should not get here */
log_message(&(g_cfg->log), LOG_LEVEL_ALWAYS,
"error starting xrdp-sessvc - pid %d - xpid=%s - wmpid=%s",
g_getpid(), xpid_str, wmpid_str);
/* logging parameters */
/* no problem calling strerror for thread safety: other threads
are blocked */
log_message(&(g_cfg->log), LOG_LEVEL_DEBUG, "errno: %d, description: %s",
errno, g_get_strerror());
log_message(&(g_cfg->log), LOG_LEVEL_DEBUG, "execve parameter list:");
for (i = 0; i < (sessvc_params->count); i++)
{
log_message(&(g_cfg->log), LOG_LEVEL_DEBUG, " argv[%d] = %s", i,
(char*)list_get_item(sessvc_params, i));
}
list_delete(sessvc_params);
/* keep the old waitpid if some error occurs during execlp */
g_waitpid(wmpid);
g_sigterm(xpid);
g_sigterm(wmpid);
g_sleep(1000);
auth_end(data);
g_exit(0);
}
/* called with the main thread */
static int APP_CC
session_start_fork(int width, int height, int bpp, char *username,
char *password, tbus data, tui8 type, char *domain,
char *program, char *directory, char *client_ip)
{
int display = 0;
int pid = 0;
int wmpid = 0;
int xpid = 0;
int i = 0;
char geometry[32];
char depth[32];
char screen[32];
char text[256];
char passwd_file[256];
char **pp1 = (char **)NULL;
struct session_chain *temp = (struct session_chain *)NULL;
struct list *xserver_params = (struct list *)NULL;
time_t ltime;
struct tm stime;
char execvpparams[2048];
/* initialize (zero out) local variables: */
g_memset(<ime, 0, sizeof(time_t));
g_memset(&stime, 0, sizeof(struct tm));
g_memset(geometry, 0, sizeof(char) * 32);
g_memset(depth, 0, sizeof(char) * 32);
g_memset(screen, 0, sizeof(char) * 32);
g_memset(text, 0, sizeof(char) * 256);
g_memset(passwd_file, 0, sizeof(char) * 256);
/* check to limit concurrent sessions */
if (g_session_count >= g_cfg->sess.max_sessions)
{
log_message(LOG_LEVEL_INFO, "max concurrent session limit "
"exceeded. login for user %s denied", username);
return 0;
}
temp = (struct session_chain *)g_malloc(sizeof(struct session_chain), 0);
if (temp == 0)
{
log_message(LOG_LEVEL_ERROR, "cannot create new chain "
"element - user %s", username);
return 0;
}
temp->item = (struct session_item *)g_malloc(sizeof(struct session_item), 0);
if (temp->item == 0)
{
g_free(temp);
log_message(LOG_LEVEL_ERROR, "cannot create new session "
"item - user %s", username);
return 0;
}
display = session_get_aval_display_from_chain();
if (display == 0)
{
g_free(temp->item);
g_free(temp);
return 0;
}
pid = g_fork();
if (pid == -1)
{
}
else if (pid == 0) /* child sesman */
{
g_tcp_close(g_sck);
g_tcp_close(g_thread_sck);
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 (child sesman) xserver */
{
wait_for_xserver(display);
env_set_user(username, 0, display);
if (x_server_running(display))
{
auth_set_env(data);
if (directory != 0)
{
if (directory[0] != 0)
{
g_set_current_dir(directory);
}
}
if (program != 0)
{
if (program[0] != 0)
{
g_execlp3(program, program, 0);
log_message(LOG_LEVEL_ALWAYS,
"error starting program %s for user %s - pid %d",
program, username, g_getpid());
}
}
/* 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);
log_message(LOG_LEVEL_ALWAYS, "error starting user "
"wm for user %s - pid %d", username, g_getpid());
/* logging parameters */
log_message(LOG_LEVEL_DEBUG, "errno: %d, "
"description: %s", errno, g_get_strerror());
log_message(LOG_LEVEL_DEBUG, "execlp3 parameter "
"list:");
log_message(LOG_LEVEL_DEBUG, " argv[0] = %s",
text);
log_message(LOG_LEVEL_DEBUG, " argv[1] = %s",
g_cfg->user_wm);
}
}
/* if we're here something happened to g_execlp3
so we try running the default window manager */
g_sprintf(text, "%s/%s", XRDP_CFG_PATH, g_cfg->default_wm);
g_execlp3(text, g_cfg->default_wm, 0);
log_message( LOG_LEVEL_ALWAYS, "error starting default "
"wm for user %s - pid %d", username, g_getpid());
/* logging parameters */
log_message( LOG_LEVEL_DEBUG, "errno: %d, description: "
"%s", errno, g_get_strerror());
log_message(LOG_LEVEL_DEBUG, "execlp3 parameter list:");
log_message(LOG_LEVEL_DEBUG, " argv[0] = %s",
text);
log_message(LOG_LEVEL_DEBUG, " argv[1] = %s",
g_cfg->default_wm);
/* still a problem starting window manager just start xterm */
g_execlp3("xterm", "xterm", 0);
/* should not get here */
log_message(LOG_LEVEL_ALWAYS, "error starting xterm "
"for user %s - pid %d", username, g_getpid());
/* logging parameters */
log_message(LOG_LEVEL_DEBUG, "errno: %d, description: "
"%s", errno, g_get_strerror());
}
else
{
log_message(LOG_LEVEL_ERROR, "another Xserver might "
"already be active on display %d - see log", display);
}
log_message(LOG_LEVEL_DEBUG, "aborting connection...");
g_exit(0);
}
else /* parent (child sesman) */
{
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);
if (type == SESMAN_SESSION_TYPE_XVNC)
{
xserver_params = list_create();
xserver_params->auto_free = 1;
/* these are the must have parameters */
list_add_item(xserver_params, (long)g_strdup("Xvnc"));
list_add_item(xserver_params, (long)g_strdup(screen));
list_add_item(xserver_params, (long)g_strdup("-geometry"));
list_add_item(xserver_params, (long)g_strdup(geometry));
list_add_item(xserver_params, (long)g_strdup("-depth"));
list_add_item(xserver_params, (long)g_strdup(depth));
list_add_item(xserver_params, (long)g_strdup("-rfbauth"));
list_add_item(xserver_params, (long)g_strdup(passwd_file));
/* additional parameters from sesman.ini file */
//config_read_xserver_params(SESMAN_SESSION_TYPE_XVNC,
// xserver_params);
list_append_list_strdup(g_cfg->vnc_params, xserver_params, 0);
/* make sure it ends with a zero */
list_add_item(xserver_params, 0);
pp1 = (char **)xserver_params->items;
log_message(LOG_LEVEL_INFO, "Xvnc start:%s", dumpItemsToString(xserver_params, execvpparams, 2048));
g_execvp("Xvnc", pp1);
}
else if (type == SESMAN_SESSION_TYPE_XRDP)
{
xserver_params = list_create();
xserver_params->auto_free = 1;
/* these are the must have parameters */
list_add_item(xserver_params, (long)g_strdup("X11rdp"));
list_add_item(xserver_params, (long)g_strdup(screen));
list_add_item(xserver_params, (long)g_strdup("-geometry"));
list_add_item(xserver_params, (long)g_strdup(geometry));
list_add_item(xserver_params, (long)g_strdup("-depth"));
list_add_item(xserver_params, (long)g_strdup(depth));
/* additional parameters from sesman.ini file */
//config_read_xserver_params(SESMAN_SESSION_TYPE_XRDP,
// xserver_params);
list_append_list_strdup(g_cfg->rdp_params, xserver_params, 0);
/* make sure it ends with a zero */
list_add_item(xserver_params, 0);
pp1 = (char **)xserver_params->items;
log_message(LOG_LEVEL_INFO, "X11rdp start:%s", dumpItemsToString(xserver_params, execvpparams, 2048));
g_execvp("X11rdp", pp1);
}
else
{
log_message(LOG_LEVEL_ALWAYS, "bad session type - "
"user %s - pid %d", username, g_getpid());
g_exit(1);
}
/* should not get here */
log_message(LOG_LEVEL_ALWAYS, "error starting X server "
"- user %s - pid %d", username, g_getpid());
/* logging parameters */
log_message(LOG_LEVEL_DEBUG, "errno: %d, description: "
"%s", errno, g_get_strerror());
log_message(LOG_LEVEL_DEBUG, "execve parameter list size: "
"%d", (xserver_params)->count);
for (i = 0; i < (xserver_params->count); i++)
{
log_message(LOG_LEVEL_DEBUG, " argv[%d] = %s",
i, (char *)list_get_item(xserver_params, i));
}
list_delete(xserver_params);
g_exit(1);
}
else /* parent (child sesman)*/
{
wait_for_xserver(display);
g_snprintf(text, 255, "%d", display);
g_setenv("XRDP_SESSVC_DISPLAY", text, 1);
g_snprintf(text, 255, ":%d.0", display);
g_setenv("DISPLAY", text, 1);
/* new style waiting for clients */
session_start_sessvc(xpid, wmpid, data, username, display);
}
}
}
else /* parent sesman process */
{
temp->item->pid = pid;
temp->item->display = display;
temp->item->width = width;
temp->item->height = height;
temp->item->bpp = bpp;
temp->item->data = data;
g_strncpy(temp->item->client_ip, client_ip, 255); /* store client ip data */
g_strncpy(temp->item->name, username, 255);
ltime = g_time1();
localtime_r(<ime, &stime);
temp->item->connect_time.year = (tui16)(stime.tm_year + 1900);
temp->item->connect_time.month = (tui8)stime.tm_mon;
temp->item->connect_time.day = (tui8)stime.tm_mday;
temp->item->connect_time.hour = (tui8)stime.tm_hour;
temp->item->connect_time.minute = (tui8)stime.tm_min;
zero_time(&(temp->item->disconnect_time));
zero_time(&(temp->item->idle_time));
temp->item->type = type;
temp->item->status = SESMAN_SESSION_STATUS_ACTIVE;
temp->next = g_sessions;
g_sessions = temp;
g_session_count++;
}
return display;
}