static gboolean
session_new_bus (const char *address)
{
DBusError error;
dbus_error_init (&error);
if (session_bus != NULL) {
N_DEBUG (LOG_CAT "received session bus address '%s'", address);
dbus_connection_unref (session_bus);
session_bus = NULL;
}
else
N_DEBUG (LOG_CAT "received new session bus address '%s'", address);
if ((session_bus = dbus_connection_open (address, &error)) == NULL ||
!dbus_bus_register (session_bus, &error))
{
if (dbus_error_is_set(&error)) {
N_WARNING (LOG_CAT "failed to connect to session bus %s (%s)",
address, error.message);
dbus_error_free (&error);
}
else
N_WARNING (LOG_CAT "failed to connect to session bus %s", address);
return FALSE;
}
session_reconnect ();
return TRUE;
}
static gboolean
inotify_watch (GIOChannel *source, GIOCondition condition, gpointer userdata)
{
char buf[BUF_LEN];
int len, i = 0, fd = 0;
gchar *address = NULL;
gboolean success = FALSE;
struct inotify_event *event = NULL;
(void) userdata;
if (condition & G_IO_IN) {
fd = g_io_channel_unix_get_fd (source);
len = read (fd, buf, BUF_LEN);
while (i < len) {
event = (struct inotify_event *) &buf[i];
if (event->mask & IN_DELETE_SELF) {
N_DEBUG (LOG_CAT "session bus address file was removed.");
close_file_watcher ();
setup_file_polling ();
return FALSE;
}
if ((event->mask & IN_MODIFY)) {
success = FALSE;
if ((address = load_session_bus_address (SESSION_BUS_ADDRESS_FILENAME)) != NULL) {
if (session_new_bus (address)) {
session_reconnect ();
success = TRUE;
}
}
if (!success) {
close_file_watcher ();
setup_file_polling ();
return FALSE;
}
}
i += EVENT_SIZE + event->len;
}
}
return TRUE;
}
static gboolean
session_bus_connect ()
{
DBusError error;
dbus_error_init(&error);
if (!session_bus) {
session_bus = dbus_bus_get(DBUS_BUS_SESSION, &error);
if (dbus_error_is_set(&error)) {
N_DEBUG (LOG_CAT "Could not connect to DBus session bus.");
return FALSE;
}
}
N_DEBUG (LOG_CAT "Connected to DBus session bus.");
session_reconnect ();
return TRUE;
}
void DEFAULT_CC
scp_v0_process(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
{
int display = 0;
tbus data;
struct session_item *s_item;
int errorcode = 0 ;
data = auth_userpass(s->username, s->password,&errorcode);
if (s->type == SCP_GW_AUTHENTICATION)
{
/* this is just authentication in a gateway situation */
/* g_writeln("SCP_GW_AUTHENTICATION message received"); */
if (data)
{
if (1 == access_login_allowed(s->username))
{
/* the user is member of the correct groups. */
scp_v0s_replyauthentication(c, errorcode);
log_message(LOG_LEVEL_INFO, "Access permitted for user: %s",
s->username);
/* g_writeln("Connection allowed"); */
}
else
{
scp_v0s_replyauthentication(c, 32+3); /* all first 32 are reserved for PAM errors */
log_message(LOG_LEVEL_INFO, "Username okey but group problem for "
"user: %s", s->username);
/* g_writeln("user password ok, but group problem"); */
}
}
else
{
/* g_writeln("username or password error"); */
log_message(LOG_LEVEL_INFO, "Username or password error for user: %s",
s->username);
scp_v0s_replyauthentication(c, errorcode);
}
auth_end(data);
}
else if (data)
{
s_item = session_get_bydata(s->username, s->width, s->height,
s->bpp, s->type);
if (s_item != 0)
{
display = s_item->display;
if (0 != s->client_ip)
{
log_message( LOG_LEVEL_INFO, "++ reconnected session: username %s, "
"display :%d.0, session_pid %d, ip %s",
s->username, display, s_item->pid, s->client_ip);
}
else
{
log_message(LOG_LEVEL_INFO, "++ reconnected session: username %s, "
"display :%d.0, session_pid %d", s->username, display,
s_item->pid);
}
session_reconnect(display, s->username);
auth_end(data);
/* don't set data to null here */
}
else
{
LOG_DBG("pre auth");
if (1 == access_login_allowed(s->username))
{
if (0 != s->client_ip)
{
log_message(LOG_LEVEL_INFO, "++ created session (access granted): "
"username %s, ip %s", s->username, s->client_ip);
}
else
{
log_message(LOG_LEVEL_INFO, "++ created session (access granted): "
"username %s", s->username);
}
if (SCP_SESSION_TYPE_XVNC == s->type)
{
log_message( LOG_LEVEL_INFO, "starting Xvnc session...");
display = session_start(s->width, s->height, s->bpp, s->username,
s->password, data, SESMAN_SESSION_TYPE_XVNC,
s->domain, s->program, s->directory,
s->client_ip);
}
else
{
log_message(LOG_LEVEL_INFO, "starting X11rdp session...");
display = session_start(s->width, s->height, s->bpp, s->username,
s->password, data, SESMAN_SESSION_TYPE_XRDP,
s->domain, s->program, s->directory,
s->client_ip);
}
}
else
{
display = 0;
}
}
if (display == 0)
{
auth_end(data);
scp_v0s_deny_connection(c);
}
else
{
scp_v0s_allow_connection(c, display);
}
}
else
{
scp_v0s_deny_connection(c);
}
}