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|
/* GDM - The GNOME Display Manager
* Copyright (C) 1998, 1999, 2000 Martin K, Petersen <mkp@mkp.net>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* gdmchooser discovers hosts running XDMCP on the local network(s),
* presents a list of them and allows the user to choose one. The
* selected hostname will be printed on stdout. */
#include <config.h>
#include <libgnome/libgnome.h>
#include <libgnomeui/libgnomeui.h>
#include <glade/glade.h>
#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <gdk/gdkx.h>
#include <X11/Xmd.h>
#include <X11/Xdmcp.h>
#include <syslog.h>
#include <signal.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <net/if.h>
#ifdef HAVE_SYS_SOCKIO_H
#include <sys/sockio.h>
#endif
#include <viciousui.h>
#include "gdm.h"
#include "misc.h"
#include "gdmwm.h"
#include "gdmcommon.h"
static gboolean RUNNING_UNDER_GDM = FALSE;
enum {
CHOOSER_LIST_ICON_COLUMN = 0,
CHOOSER_LIST_LABEL_COLUMN,
CHOOSER_LIST_HOST_COLUMN
};
typedef struct _GdmChooserHost GdmChooserHost;
struct _GdmChooserHost {
gchar *name;
gchar *desc;
#ifdef ENABLE_IPV6
struct in6_addr ia6;
#endif
struct in_addr ia;
gint addrtype; /* Address stored is IPv4 or IPv6 */
GdkPixbuf *picture;
gboolean willing;
};
static const gchar *scanning_message = N_("Please wait: scanning local network...");
static const gchar *empty_network = N_("No serving hosts were found.");
static const gchar *active_network = N_("Choose a ho_st to connect to:");
/* XDM chooser style stuff */
static gchar *xdm_address = NULL;
static gchar *client_address = NULL;
static gint connection_type = 0;
static void gdm_chooser_abort (const gchar *format, ...) G_GNUC_PRINTF (1, 2);
static void gdm_chooser_warn (const gchar *format, ...) G_GNUC_PRINTF (1, 2);
static void set_background (void);
/* Exported for glade */
void gdm_chooser_cancel (void);
void gdm_chooser_add_host (void);
void gdm_chooser_add_entry_changed (void);
void gdm_chooser_manage (GtkButton *button, gpointer data);
void gdm_chooser_browser_select (GtkWidget *widget,
gint selected,
GdkEvent *event);
void gdm_chooser_browser_unselect (GtkWidget *widget,
gint selected,
GdkEvent *event);
void gdm_chooser_xdmcp_discover (void);
void display_chooser_information (void);
#define ADD_TIMEOUT 3000
static guint add_check_handler = 0;
/* if this is received, select that host automatically */
#ifdef ENABLE_IPV6
static struct in6_addr *added6_addr = NULL;
#endif
static struct in_addr *added_addr = NULL;
static char *added_host = NULL;
static guint scan_time_handler = 0;
#define PING_TIMEOUT 2000
#define PING_TRIES 3
static int ping_tries = PING_TRIES;
static guint ping_try_handler = 0;
/* set in the main function */
static char **stored_argv = NULL;
static int stored_argc = 0;
/* Fixetyfix */
int XdmcpReallocARRAY8 (ARRAY8Ptr array, int length);
typedef struct _XdmAuth {
ARRAY8 authentication;
ARRAY8 authorization;
} XdmAuthRec, *XdmAuthPtr;
static XdmAuthRec authlist = {
{ (CARD16) 0, (CARD8 *) 0 },
{ (CARD16) 0, (CARD8 *) 0 }
};
static gint sockfd;
static XdmcpBuffer bcbuf;
static XdmcpBuffer querybuf;
static GSList *bcaddr;
static GSList *queryaddr;
static gint GdmXineramaScreen;
static gint GdmIconMaxHeight;
static gint GdmIconMaxWidth;
static gboolean GdmDebug;
static gint GdmScanTime;
static gchar *GdmHostIconDir;
static gchar *GdmHostDefaultIcon;
static gchar *GdmGtkRC;
static gchar *GdmGtkTheme;
static gchar *GdmHosts;
static gchar *GdmHostsOrig;
static gboolean GdmBroadcast;
static gboolean GdmAllowAdd;
static gchar *GdmBackgroundColor;
static int GdmBackgroundType;
#ifdef ENABLE_IPV6
static gboolean GdmMulticast;
static gchar *GdmMulticastAddr;
#endif
/* HACK: for gdmcommon, else it complains */
/* */ gchar *GdmInfoMsgFile;
/* */ gchar *GdmInfoMsgFont;
/* */ gchar *GdmSoundProgram;
/* */ gboolean GdmSoundOnLoginReady;
/* */ gchar *GdmSoundOnLoginReadyFile;
/* */ void
/* */ gdm_kill_thingies (void)
/* */ {
/* */ ; /* nothing */
/* */ }
enum {
GDM_BACKGROUND_NONE = 0,
GDM_BACKGROUND_IMAGE = 1,
GDM_BACKGROUND_COLOR = 2
};
static GladeXML *chooser_app;
static GtkWidget *chooser, *manage, *rescan, *cancel, *add_entry, *add_button;
static GtkWidget *status_label;
static GIOChannel *channel;
static GList *hosts = NULL;
static GdkPixbuf *defhostimg;
static GtkWidget *browser;
static GtkTreeModel *browser_model;
static GdmChooserHost *curhost;
static gboolean have_ipv6; /* Socket is IPv4 or IPv6 */
static gboolean
find_host_in_list (GdmChooserHost *host, GtkTreeIter *iter)
{
if (gtk_tree_model_get_iter_first (browser_model, iter)) {
do {
GdmChooserHost *lhost;
gtk_tree_model_get (browser_model, iter,
CHOOSER_LIST_HOST_COLUMN, &lhost,
-1);
if (lhost == host)
return TRUE;
} while (gtk_tree_model_iter_next (browser_model, iter));
}
return FALSE;
}
static void
setup_cursor (GdkCursorType type)
{
GdkCursor *cursor = gdk_cursor_new (type);
gdk_window_set_cursor (gdk_get_default_root_window (), cursor);
gdk_cursor_unref (cursor);
}
static void
gdm_chooser_host_dispose (GdmChooserHost *host)
{
if (!host)
return;
if (host->picture != NULL)
g_object_unref (G_OBJECT (host->picture));
host->picture = NULL;
g_free (host->name);
host->name = NULL;
g_free (host->desc);
host->desc = NULL;
g_free (host);
}
static GdmChooserHost *
gdm_chooser_host_alloc (const char *hostname,
const char *description,
char *ia,
int family,
gboolean willing)
{
GdmChooserHost *host;
GdkPixbuf *img;
gchar *hostimg;
host = g_new0 (GdmChooserHost, 1);
host->name = g_strdup (hostname);
host->desc = g_strdup (description);
host->willing = willing;
#ifdef ENABLE_IPV6
if (family == AF_INET6)
memcpy (&host->ia6, (struct in6_addr *)ia, sizeof (struct in6_addr));
else
#endif
memcpy (&host->ia, (struct in_addr *)ia, sizeof (struct in_addr));
host->addrtype = family;
hosts = g_list_prepend (hosts, host);
if ( ! willing)
return host;
hostimg = g_strconcat (GdmHostIconDir, "/", hostname, NULL);
if (access (hostimg, R_OK) != 0) {
g_free (hostimg);
hostimg = g_strconcat (GdmHostIconDir, "/", hostname, ".png", NULL);
}
if (access (hostimg, R_OK) == 0 &&
(img = gdk_pixbuf_new_from_file (hostimg, NULL)) != NULL) {
gint w, h;
w = gdk_pixbuf_get_width (img);
h = gdk_pixbuf_get_height (img);
if (w>h && w>GdmIconMaxWidth) {
h = h * ((gfloat) GdmIconMaxWidth/w);
w = GdmIconMaxWidth;
} else if (h>GdmIconMaxHeight) {
w = w * ((gfloat) GdmIconMaxHeight/h);
h = GdmIconMaxHeight;
}
if (w != gdk_pixbuf_get_width (img) ||
h != gdk_pixbuf_get_height (img))
host->picture = gdk_pixbuf_scale_simple (img, w, h,
GDK_INTERP_BILINEAR);
else
host->picture = g_object_ref (G_OBJECT (img));
g_object_unref (G_OBJECT (img));
} else if (defhostimg != NULL) {
host->picture = (GdkPixbuf *)g_object_ref (G_OBJECT (defhostimg));
}
g_free (hostimg);
return host;
}
static void
gdm_chooser_browser_add_host (GdmChooserHost *host)
{
gboolean add_this_host = FALSE;
if (host->willing) {
GtkTreeIter iter = {0};
const char *addr;
char *label;
char *name, *desc;
#ifdef ENABLE_IPV6
if (host->addrtype == AF_INET6) { /* IPv6 address */
static char buffer6[INET6_ADDRSTRLEN];
addr = inet_ntop (AF_INET6, host->ia6.s6_addr, buffer6, INET6_ADDRSTRLEN);
}
else /* IPv4 address */
#endif
{
addr = inet_ntoa (host->ia);
}
name = g_markup_escape_text (host->name, -1);
desc = g_markup_escape_text (host->desc, -1);
if (strcmp (addr, host->name) == 0)
label = g_strdup_printf ("<b>%s</b>\n%s",
name,
desc);
else
label = g_strdup_printf ("<b>%s</b> (%s)\n%s",
name,
addr,
desc);
g_free (name);
g_free (desc);
gtk_list_store_append (GTK_LIST_STORE (browser_model), &iter);
gtk_list_store_set (GTK_LIST_STORE (browser_model), &iter,
CHOOSER_LIST_ICON_COLUMN, host->picture,
CHOOSER_LIST_LABEL_COLUMN, label,
CHOOSER_LIST_HOST_COLUMN, host,
-1);
g_free (label);
#ifdef ENABLE_IPV6
if (added6_addr != NULL && memcmp (&host->ia6, added6_addr,
sizeof (struct in6_addr)) == 0) {
added6_addr = NULL;
add_this_host = TRUE;
}
#else
if (added_addr != NULL &&
memcmp (&host->ia, added_addr,
sizeof (struct in_addr)) == 0) {
added_addr = NULL;
add_this_host = TRUE;
}
#endif
if (add_this_host) {
GtkTreeSelection *selection;
GtkTreePath *path = gtk_tree_model_get_path (browser_model, &iter);
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (browser));
gtk_tree_selection_select_iter (selection, &iter);
gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (browser),
path, NULL,
FALSE, 0.0, 0.0);
gtk_tree_path_free (path);
gtk_widget_grab_focus (manage);
}
g_free (added_host);
added_host = NULL;
if (add_check_handler > 0)
g_source_remove (add_check_handler);
add_check_handler = 0;
}
gtk_widget_set_sensitive (GTK_WIDGET (browser), TRUE);
}
static GdmChooserHost *
gdm_host_known (char *ia, gint family)
{
GList *li;
for (li = hosts; li != NULL; li = li->next) {
GdmChooserHost *host = li->data;
#ifdef ENABLE_IPV6
if (family == AF_INET6) {
if (host->addrtype != AF_INET6)
continue;
if ( ! memcmp (&host->ia6, (struct in6_addr *)ia, sizeof (struct in6_addr)))
return host;
}
else
#endif
if (family == AF_INET) {
if (host->addrtype != AF_INET)
continue;
if ( ! memcmp (&host->ia, (struct in_addr *)ia, sizeof (struct in_addr)))
return host;
}
}
return NULL;
}
static gboolean
is_loopback_addr (char *ia, gint family)
{
const char lo[] = {127,0,0,1};
#ifdef ENABLE_IPV6
if (family == AF_INET6 && IN6_IS_ADDR_LOOPBACK ((struct in6_addr *)ia)) {
return TRUE;
} else
#endif
if (((family == AF_INET) && (((struct in_addr *) ia)->s_addr == INADDR_LOOPBACK)) || memcmp (&((struct in_addr *)ia)->s_addr, lo, 4) == 0) {
return TRUE;
}
else {
return FALSE;
}
}
static gboolean
gdm_addr_known (char *ia, gint family)
{
GSList *li;
for (li = queryaddr; li != NULL; li = li->next) {
struct sockaddr *sa = li->data;
#ifdef ENABLE_IPV6
if (sa->sa_family == AF_INET6) {
if (family != AF_INET6)
continue;
if (!memcmp (&((struct sockaddr_in6 *)sa)->sin6_addr, (struct in6_addr *)ia , sizeof (struct in6_addr)))
return TRUE;
}
else if (sa->sa_family == AF_INET) {
if (family != AF_INET)
continue;
if (!memcmp (&((struct sockaddr_in *)sa)->sin_addr, (struct in_addr *)ia, sizeof (struct in_addr)))
return TRUE;
}
#else
if (memcmp (&((struct sockaddr_in *)sa)->sin_addr, (struct in_addr *)ia, sizeof (struct in_addr)) == 0)
return TRUE;
#endif
}
return FALSE;
}
static gboolean
gdm_chooser_decode_packet (GIOChannel *source,
GIOCondition condition,
gpointer data)
{
#ifdef ENABLE_IPV6
char hbuf[NI_MAXHOST];
struct sockaddr_in6 clnt6_sa;
#endif
struct sockaddr_in clnt_sa;
gint sa_len;
static XdmcpBuffer buf;
XdmcpHeader header;
struct hostent *he;
gchar *hostname = NULL;
gchar *status = NULL;
ARRAY8 auth = {0}, host = {0}, stat = {0};
GdmChooserHost *gh;
int pipe_buf;
gboolean host_not_willing = FALSE;
if ( ! (condition & G_IO_IN))
return TRUE;
#ifdef ENABLE_IPV6
if (have_ipv6) {
sa_len = sizeof (struct sockaddr_in6);
if (! XdmcpFill (sockfd, &buf, (XdmcpNetaddr) &clnt6_sa, &sa_len))
return TRUE;
} else
#endif
{
sa_len = sizeof (struct sockaddr_in);
if (! XdmcpFill (sockfd, &buf, (XdmcpNetaddr) &clnt_sa, &sa_len))
return TRUE;
}
if (! XdmcpReadHeader (&buf, &header))
return TRUE;
if (header.version != XDM_PROTOCOL_VERSION)
return TRUE;
if (header.opcode == WILLING) {
if (! XdmcpReadARRAY8 (&buf, &auth))
goto done;
if (! XdmcpReadARRAY8 (&buf, &host))
goto done;
if (! XdmcpReadARRAY8 (&buf, &stat))
goto done;
status = g_strndup (stat.data, MIN (stat.length, 256));
} else if (header.opcode == UNWILLING) {
/* immaterial, will not be shown */
status = NULL;
} else {
return TRUE;
}
#ifdef ENABLE_IPV6
/*Since, IPv4 addresses will get extracted as V4 mapped IPv6 address*/
if (have_ipv6 &&
IN6_IS_ADDR_V4MAPPED (&(clnt6_sa.sin6_addr))) {
memset (&clnt_sa, 0, sizeof (clnt_sa));
memcpy (&(clnt_sa.sin_addr), &(clnt6_sa.sin6_addr.s6_addr[12]), 4);
clnt_sa.sin_family = AF_INET;
clnt_sa.sin_port = clnt6_sa.sin6_port;
clnt6_sa.sin6_family = AF_INET;
}
if (have_ipv6 &&
((struct sockaddr *) &clnt6_sa)->sa_family == AF_INET6) {
if ( ! is_loopback_addr ((gchar *) &clnt6_sa.sin6_addr, AF_INET6)) {
clnt6_sa.sin6_scope_id = 0;
getnameinfo ((struct sockaddr *)&clnt6_sa, sizeof (struct sockaddr_in6), hbuf, sizeof(hbuf), NULL, 0, 0);
hostname = hbuf;
if (strlen (hostname)+1 > PIPE_BUF)
goto done;
hostname = g_strdup (hostname);
} else {
hostname = g_new0 (char, 1024);
if (gethostname (hostname, 1023) != 0) {
g_free (hostname);
goto done;
}
added6_addr = NULL;
gh = gdm_host_known ((char *)&clnt6_sa.sin6_addr, AF_INET6);
}
} else
#endif
{
if ( !is_loopback_addr ((char *)&clnt_sa.sin_addr, AF_INET)) {
he = gethostbyaddr ((gchar *) &clnt_sa.sin_addr,
sizeof (struct in_addr),
AF_INET);
hostname = (he && he->h_name) ? he->h_name : inet_ntoa (clnt_sa.sin_addr);
if (strlen (hostname)+1 > PIPE_BUF)
goto done;
hostname = g_strdup (hostname);
} else {
hostname = g_new0 (char, 1024);
if (gethostname (hostname, 1023) != 0) {
g_free (hostname);
goto done;
}
}
}
#ifdef PIPE_BUF
pipe_buf = PIPE_BUF;
#else
/* apparently Hurd doesn't have PIPE_BUF */
pipe_buf = fpathconf (1 /*stdout*/, _PC_PIPE_BUF);
/* could return -1 if no limit */
#endif
/* We can't pipe hostnames larger than this */
if (pipe_buf > 0 && strlen (hostname)+1 > pipe_buf) {
g_free (hostname);
goto done;
}
#ifdef ENABLE_IPV6
if (have_ipv6 && ((struct sockaddr *) &clnt6_sa)->sa_family == AF_INET6) {
gh = gdm_host_known ((char *)&clnt6_sa.sin6_addr, AF_INET6);
if (gh == NULL) {
gh = gdm_chooser_host_alloc (hostname, status, (char *)&clnt6_sa.sin6_addr, AF_INET6, header.opcode == WILLING);
gdm_chooser_browser_add_host (gh);
}
} else
#endif
{
gh = gdm_host_known ((char *)&clnt_sa.sin_addr, AF_INET);
if (gh == NULL) {
gh = gdm_chooser_host_alloc (hostname, status, (char *)&clnt_sa.sin_addr, AF_INET, header.opcode == WILLING);
gdm_chooser_browser_add_host (gh);
}
}
if (gh != NULL) {
/* server changed it's mind */
if (header.opcode == WILLING &&
! gh->willing) {
gh->willing = TRUE;
gdm_chooser_browser_add_host (gh);
}
/* hmmm what about the other change, just ignore
for now, it's kind of confusing to just remove
servers really */
}
#ifdef ENABLE_IPV6
if (have_ipv6 &&
((struct sockaddr *) &clnt6_sa)->sa_family == AF_INET6 &&
! gh->willing &&
added6_addr != NULL &&
memcmp (&gh->ia6, added6_addr, sizeof (struct in6_addr)) == 0) {
added6_addr = NULL;
host_not_willing = TRUE;
}
else
#endif
if (clnt_sa.sin_family == AF_INET &&
! gh->willing &&
added_addr != NULL &&
memcmp (&gh->ia, added_addr, sizeof (struct in_addr)) == 0) {
added_addr = NULL;
host_not_willing = TRUE;
}
if (host_not_willing) {
GtkWidget *dialog;
if (add_check_handler > 0)
g_source_remove (add_check_handler);
add_check_handler = 0;
dialog = ve_hig_dialog_new
(GTK_WINDOW (chooser) /* parent */,
GTK_DIALOG_MODAL /* flags */,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
FALSE /* markup */,
_("Cannot connect to remote server"),
_("The host \"%s\" is not willing "
"to support a login session right now. "
"Please try again later."),
added_host);
if (RUNNING_UNDER_GDM)
gdm_wm_center_window (GTK_WINDOW (dialog));
gdm_wm_no_login_focus_push ();
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
gdm_wm_no_login_focus_pop ();
g_free (added_host);
added_host = NULL;
}
g_free (hostname);
done:
if (header.opcode == WILLING) {
XdmcpDisposeARRAY8 (&auth);
XdmcpDisposeARRAY8 (&host);
XdmcpDisposeARRAY8 (&stat);
}
g_free (status);
return TRUE;
}
/* Find broadcast address for all active, non pointopoint interfaces */
static void
gdm_chooser_find_bcaddr (void)
{
int i = 0, num;
int sock;
struct ifconf ifc;
char *buf;
struct ifreq *ifr;
sock = socket (AF_INET, SOCK_DGRAM, 0);
#ifdef SIOCGIFNUM
if (ioctl (sock, SIOCGIFNUM, &num) < 0) {
num = 64;
}
#else
num = 64;
#endif
ifc.ifc_len = sizeof (struct ifreq) * num;
ifc.ifc_buf = buf = g_malloc0 (ifc.ifc_len);
if (ioctl (sock, SIOCGIFCONF, &ifc) < 0) {
g_free (buf);
gdm_chooser_warn ("Cannot get local addresses!");
close (sock);
return;
}
ifr = ifc.ifc_req;
num = ifc.ifc_len / sizeof(struct ifreq);
for (i = 0 ; i < num ; i++) {
if ( ! ve_string_empty (ifr[i].ifr_name)) {
struct ifreq ifreq;
struct sockaddr_in *ba = NULL;
struct sockaddr_in *sin = NULL;
memset (&ifreq, 0, sizeof (ifreq));
strncpy (ifreq.ifr_name, ifr[i].ifr_name,
sizeof (ifreq.ifr_name));
/* paranoia */
ifreq.ifr_name[sizeof (ifreq.ifr_name) - 1] = '\0';
if (ioctl (sock, SIOCGIFFLAGS, &ifreq) < 0)
gdm_chooser_warn ("Could not get SIOCGIFFLAGS for %s", ifr[i].ifr_name);
if ((ifreq.ifr_flags & IFF_UP) == 0 ||
(ifreq.ifr_flags & IFF_BROADCAST) == 0 ||
ioctl (sock, SIOCGIFBRDADDR, &ifreq) < 0)
continue;
ba = (struct sockaddr_in *) &ifreq.ifr_broadaddr;
sin = g_new0 (struct sockaddr_in, 1);
sin->sin_family = AF_INET;
memcpy (&sin->sin_addr, &ba->sin_addr, sizeof (ba->sin_addr));
bcaddr = g_slist_append (bcaddr, sin);
}
}
g_free (buf);
}
/* Append multicast address into the list */
#ifdef ENABLE_IPV6
static void
gdm_chooser_find_mcaddr (void)
{
struct sockaddr_in6 *sin6;
int sock; /* Temporary socket for getting information about available interfaces */
u_char loop = 0; /* Disable multicast for loopback interface */
int i, num;
char *buf;
/* For interfaces' list */
struct ifconf ifc;
struct ifreq *ifr = NULL;
sock = socket (AF_INET, SOCK_DGRAM, 0);
#ifdef SIOCGIFNUM
if (ioctl (sock, SIOCGIFNUM, &num) < 0) {
num = 64;
}
#else
num = 64;
#endif
ifc.ifc_len = sizeof (struct ifreq) * num;
ifc.ifc_buf = buf = malloc (ifc.ifc_len);
if (setsockopt (sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &loop, sizeof (loop)) < 0)
gdm_chooser_warn ("setsockopt: Can't disable loopback interface for multicasting\n");
if (ioctl (sock, SIOCGIFCONF, &ifc) >= 0)
ifr = ifc.ifc_req;
num = ifc.ifc_len / sizeof (struct ifreq); /* No of interfaces */
for (i = 0 ; i < num ; i++) {
struct ifreq ifreq;
int ifindex;
memset (&ifreq, 0, sizeof (ifreq));
strncpy (ifreq.ifr_name, ifr[i].ifr_name, sizeof (ifreq.ifr_name));
ifreq.ifr_name[sizeof (ifreq.ifr_name) - 1] = '\0';
if (ioctl (sock, SIOCGIFFLAGS, &ifreq) < 0)
gdm_chooser_warn ("Could not get interface flags for %s\n", ifr[i].ifr_name);
ifindex = if_nametoindex (ifr[i].ifr_name);
if ((!(ifreq.ifr_flags & IFF_UP) || (!(ifreq.ifr_flags & IFF_MULTICAST))) || (ifindex == 0 )) {
/* Not a valid interface or Not up */
continue;
}
sin6 = g_new0 (struct sockaddr_in6, 1);
sin6->sin6_family = AF_INET6;
sin6->sin6_port = htons (XDM_UDP_PORT);
sin6->sin6_scope_id = ifindex;
inet_pton (AF_INET6, GdmMulticastAddr, &sin6->sin6_addr);
bcaddr = g_slist_append (bcaddr, sin6); /* bcaddr is also serving for multicast address for IPv6 */
}
}
#endif
static gboolean
chooser_scan_time_update (gpointer data)
{
GList *li;
scan_time_handler = 0;
for (li = hosts; li != NULL; li = li->next) {
GdmChooserHost *host = (GdmChooserHost *) li->data;
if (host->willing)
break;
}
if (li != NULL /* something was found */) {
gtk_label_set_label (GTK_LABEL (status_label), _(active_network));
} else {
gtk_label_set_label (GTK_LABEL (status_label), _(empty_network));
}
gtk_widget_set_sensitive (GTK_WIDGET (rescan), TRUE);
return FALSE;
}
static void
do_ping (gboolean full)
{
struct sockaddr_in sock;
GSList *bl = bcaddr;
GSList *ql = queryaddr;
struct sockaddr *ia;
#ifdef ENABLE_IPV6
struct sockaddr_in6 sock6;
memset (&sock6, 0, sizeof (sock6));
sock6.sin6_family = AF_INET6;
sock6.sin6_port = htons (XDM_UDP_PORT);
#endif
sock.sin_family = AF_INET;
sock.sin_port = htons (XDM_UDP_PORT);
while (bl) {
ia = (struct sockaddr *) bl->data;
#ifdef ENABLE_IPV6
if (have_ipv6) { /* Convert the IPv4 broadcast address to v4 mapped v6 address.*/
if (ia->sa_family == AF_INET) {
char tmpaddr[30];
struct in6_addr in6;
sprintf (tmpaddr, "::ffff:%s", inet_ntoa(((struct sockaddr_in *)(ia))->sin_addr));
inet_pton (AF_INET6, tmpaddr, &in6);
memcpy (sock6.sin6_addr.s6_addr, in6.s6_addr, sizeof (struct in6_addr));
XdmcpFlush (sockfd, &bcbuf, (XdmcpNetaddr) &sock6, (int) sizeof (struct sockaddr_in6));
}
else if (ia->sa_family == AF_INET6) {
memcpy (sock6.sin6_addr.s6_addr, ((struct sockaddr_in6 *)ia)->sin6_addr.s6_addr, sizeof (struct in6_addr));
XdmcpFlush (sockfd, &bcbuf, (XdmcpNetaddr) &sock6, (int) sizeof (struct sockaddr_in6));
}
}
else
#endif
{
if (ia->sa_family == AF_INET) {
sock.sin_addr.s_addr = ((struct sockaddr_in *)ia)->sin_addr.s_addr;
XdmcpFlush (sockfd, &bcbuf, (XdmcpNetaddr) &sock, (int)sizeof (struct sockaddr_in));
}
}
bl = bl->next;
}
while (ql != NULL) {
ia = (struct sockaddr *) ql->data;
#ifdef ENABLE_IPV6
if (have_ipv6) {
if (ia->sa_family == AF_INET) {
char tmpaddr[30];
struct in6_addr in6;
sprintf (tmpaddr, "::ffff:%s", inet_ntoa(((struct sockaddr_in *)(ia))->sin_addr));
inet_pton (AF_INET6, tmpaddr, &in6);
if (full || ! gdm_host_known ((char *)&((struct sockaddr_in6 *)ia)->sin6_addr, AF_INET6)) {
memcpy (sock6.sin6_addr.s6_addr, in6.s6_addr, sizeof (struct in6_addr));
XdmcpFlush (sockfd, &bcbuf, (XdmcpNetaddr) &sock6, (int) sizeof (struct sockaddr_in6));
}
}
if (ia->sa_family == AF_INET6) {
if (full || ! gdm_host_known ((char *)&((struct sockaddr_in6 *)ia)->sin6_addr, AF_INET6)) {
memcpy (&sock6.sin6_addr, &((struct sockaddr_in6 *)ia)->sin6_addr, sizeof (struct in6_addr));
XdmcpFlush (sockfd, &querybuf, (XdmcpNetaddr) &sock6, (int) sizeof (struct sockaddr_in6));
}
}
}
else
#endif
{
if (full || ! gdm_host_known ((char *)&((struct sockaddr_in *)ia)->sin_addr, AF_INET)) {
sock.sin_addr.s_addr = ((struct sockaddr_in *)ia)->sin_addr.s_addr;
XdmcpFlush (sockfd, &querybuf, (XdmcpNetaddr) &sock, (int)sizeof (struct sockaddr_in));
}
}
ql = ql->next;
}
}
static gboolean
ping_try (gpointer data)
{
do_ping (FALSE);
ping_tries --;
if (ping_tries <= 0)
return FALSE;
else
return TRUE;
}
void
gdm_chooser_xdmcp_discover (void)
{
GList *hl = hosts;
g_free (added_host);
added_host = NULL;
#ifdef ENABLE_IPV6
added6_addr = NULL;
#endif
added_addr = NULL;
if (add_check_handler > 0)
g_source_remove (add_check_handler);
add_check_handler = 0;
gtk_widget_set_sensitive (GTK_WIDGET (manage), FALSE);
gtk_widget_set_sensitive (GTK_WIDGET (rescan), FALSE);
gtk_list_store_clear (GTK_LIST_STORE (browser_model));
gtk_widget_set_sensitive (GTK_WIDGET (browser), FALSE);
gtk_label_set_label (GTK_LABEL (status_label),
_(scanning_message));
while (hl) {
gdm_chooser_host_dispose ((GdmChooserHost *) hl->data);
hl = hl->next;
}
g_list_free (hosts);
hosts = NULL;
do_ping (TRUE);
if (scan_time_handler > 0)
g_source_remove (scan_time_handler);
scan_time_handler = g_timeout_add (GdmScanTime * 1000,
chooser_scan_time_update, NULL);
/* Note we already used up one try */
ping_tries = PING_TRIES - 1;
if (ping_try_handler > 0)
g_source_remove (ping_try_handler);
ping_try_handler = g_timeout_add (PING_TIMEOUT, ping_try, NULL);
}
#ifndef ishexdigit
#define ishexdigit(c) (isdigit(c) || ('a' <= (c) && (c) <= 'f'))
#endif
#define HexChar(c) ('0' <= (c) && (c) <= '9' ? (c) - '0' : (c) - 'a' + 10)
static int
from_hex (const char *s, char *d, int len)
{
int t;
while (len >= 2)
{
if (!ishexdigit(*s))
return 1;
t = HexChar (*s) << 4;
s++;
if (!ishexdigit(*s))
return 1;
t += HexChar (*s);
s++;
*d++ = t;
len -= 2;
}
return len;
}
static void
gdm_chooser_add_hosts (char **hosts)
{
struct hostent *hostent;
#ifdef ENABLE_IPV6
struct sockaddr_in6 *qa6 = NULL;
struct addrinfo hints, *result, *res;
#endif
struct sockaddr_in* qa = NULL;
int used_addr = 0;
int i;
for (i = 0; hosts != NULL && hosts[i] != NULL; i++) {
const char *name = hosts[i];
if (strcmp (name, "BROADCAST") == 0) {
gdm_chooser_find_bcaddr ();
continue;
}
#ifdef ENABLE_IPV6
if (strcmp (name, "MULTICAST") == 0) {
gdm_chooser_find_mcaddr ();
continue;
}
#endif
if (used_addr == AF_INET || !qa) {
qa = g_new0 (struct sockaddr_in, 1);
memset (qa, 0, sizeof (*qa));
qa->sin_family = AF_INET;
}
#ifdef ENABLE_IPV6
if (used_addr == AF_INET6 || !qa6) {
qa6 = g_new0 (struct sockaddr_in6, 1);
memset (qa6, 0, sizeof (qa6));
qa6->sin6_family = AF_INET6;
}
result = NULL;
memset (&hints, 0, sizeof (hints));
hints.ai_socktype = SOCK_STREAM;
if ((strlen (name) == 32) && from_hex (name, (char *) &qa6->sin6_addr, strlen (name)) == 0) {
queryaddr = g_slist_append (queryaddr, qa6);
g_free (qa);
qa = NULL;
used_addr = AF_INET6;
}
else
#endif
if ((strlen (name) == 8) && (from_hex (name, (char *) &qa->sin_addr, strlen (name)) == 0)) {
queryaddr = g_slist_append (queryaddr, qa);
#ifdef ENABLE_IPV6
g_free (qa6);
qa6 = NULL;
#endif
used_addr = AF_INET;
}
else
#ifdef ENABLE_IPV6
if (inet_pton (AF_INET6, name, &qa6->sin6_addr) > 0) {
queryaddr = g_slist_append (queryaddr, qa6);
g_free (qa);
qa = NULL;
used_addr = AF_INET6;
}
else
#endif
if ((qa->sin_addr.s_addr = inet_addr (name)) != -1) {
queryaddr = g_slist_append (queryaddr, qa);
#ifdef ENABLE_IPV6
g_free (qa6);
qa6 = NULL;
#endif
used_addr = AF_INET;
}
else
#ifdef ENABLE_IPV6
if (getaddrinfo (name, NULL, &hints, &result) == 0) {
for (res = result; res; res = res->ai_next) {
if (res && res->ai_family == AF_INET6) {
memmove (qa6, res->ai_addr, res->ai_addrlen);
queryaddr = g_slist_append (queryaddr, qa6);
g_free (qa);
qa = NULL;
used_addr = AF_INET6;
}
if (res && res->ai_family == AF_INET) {
memmove (qa, res->ai_addr, res->ai_addrlen);
queryaddr = g_slist_append (queryaddr, qa);
g_free (qa6);
qa6 = NULL;
used_addr = AF_INET;
}
}
} else
#endif
if ((hostent = gethostbyname (name)) != NULL
&& hostent->h_addrtype == AF_INET
&& hostent->h_length == 4) {
qa->sin_family = AF_INET;
memmove (&qa->sin_addr, hostent->h_addr, 4);
queryaddr = g_slist_append (queryaddr, qa);
#ifdef ENABLE_IPV6
g_free (qa6);
qa6 = NULL;
#endif
used_addr = AF_INET;
} else {
continue; /* not a valid address */
}
}
if (bcaddr == NULL &&
queryaddr == NULL)
gdm_chooser_find_bcaddr ();
}
static void
gdm_chooser_xdmcp_init (char **hosts)
{
static XdmcpHeader header;
gint sockopts = 1;
/* Open socket for communication */
#ifdef ENABLE_IPV6
if ((sockfd = socket (AF_INET6, SOCK_DGRAM, 0)) == -1)
have_ipv6 = FALSE;
else
have_ipv6 = TRUE;
#endif
if ( ! have_ipv6) {
if ((sockfd = socket (AF_INET, SOCK_DGRAM, 0)) == -1) {
gdm_chooser_abort ("Could not create socket()!");
}
}
if (setsockopt (sockfd, SOL_SOCKET, SO_BROADCAST, (char *) &sockopts, sizeof (sockopts)) < 0)
gdm_chooser_abort ("Could not set socket options!");
/* Assemble XDMCP BROADCAST_QUERY packet in static buffer */
header.opcode = (CARD16) BROADCAST_QUERY;
header.length = 1;
header.version = XDM_PROTOCOL_VERSION;
XdmcpWriteHeader (&bcbuf, &header);
XdmcpWriteARRAY8 (&bcbuf, &authlist.authentication);
/* Assemble XDMCP QUERY packet in static buffer */
header.opcode = (CARD16) QUERY;
header.length = 1;
header.version = XDM_PROTOCOL_VERSION;
XdmcpWriteHeader (&querybuf, &header);
XdmcpWriteARRAY8 (&querybuf, &authlist.authentication);
gdm_chooser_add_hosts (hosts);
channel = g_io_channel_unix_new (sockfd);
g_io_channel_set_encoding (channel, NULL, NULL);
g_io_channel_set_buffered (channel, FALSE);
g_io_add_watch_full (channel, G_PRIORITY_DEFAULT,
G_IO_IN|G_IO_PRI|G_IO_ERR|G_IO_HUP|G_IO_NVAL,
gdm_chooser_decode_packet,
GINT_TO_POINTER (sockfd), NULL);
g_io_channel_unref (channel);
gdm_chooser_xdmcp_discover();
}
static void
gdm_chooser_choose_host (const char *hostname)
{
ARRAY8 tmparr;
#ifndef ENABLE_IPV6
struct hostent *hentry;
#endif
printf ("\n%s\n", curhost->name);
fflush (stdout);
if (xdm_address != NULL) {
#ifdef ENABLE_IPV6
int status;
struct sockaddr_in6 in6_addr;
struct addrinfo hints, *result;
#endif
struct sockaddr_in in_addr;
char xdm_addr[32];
char client_addr[32];
int fd;
char buf[1024];
XdmcpBuffer buffer;
long family, port, addr;
if (strlen (xdm_address) > 64 ||
from_hex (xdm_address, xdm_addr, strlen (xdm_address)) != 0)
gdm_chooser_abort ("gdm_chooser_chooser_host: Invalid xdm address.");
family = (xdm_addr[0] << 8) | xdm_addr[1];
port = (xdm_addr[2] << 8) | xdm_addr[3];
#ifdef ENABLE_IPV6
if (family == AF_INET6) {
memset (&in6_addr, 0, sizeof (in6_addr));
in6_addr.sin6_port = htons (port);
in6_addr.sin6_family = AF_INET6;
memcpy (&in6_addr.sin6_addr, &xdm_address[4], 16);
if ((fd = socket (PF_INET6, SOCK_STREAM, 0)) == -1)
gdm_chooser_abort ("gdm_chooser_choose_host: Couldn't create response socket.");
if (connect (fd, (struct sockaddr *) &in6_addr, sizeof (in6_addr)) == -1)
gdm_chooser_abort ("gdm_chooser_chooser_host: Couldn't connect to xdm.");
} else
#endif
{
addr = (xdm_addr[4] << 24) | (xdm_addr[5] << 16) | (xdm_addr[6] << 8) | xdm_addr[7];
in_addr.sin_family = AF_INET;
in_addr.sin_port = htons (port);
in_addr.sin_addr.s_addr = htonl (addr);
if ((fd = socket (PF_INET, SOCK_STREAM, 0)) == -1)
gdm_chooser_abort ("gdm_chooser_chooser_host: Couldn't create response socket.");
if (connect (fd, (struct sockaddr *) &in_addr, sizeof (in_addr)) == -1)
gdm_chooser_abort ("gdm_chooser_chooser_host: Couldn't connect to xdm.");
}
buffer.data = (BYTE *) buf;
buffer.size = sizeof (buf);
buffer.pointer = 0;
buffer.count = 0;
if (strlen (client_address) > 64 || from_hex (client_address, client_addr, strlen (client_address)) != 0)
gdm_chooser_abort ("gdm_chooser_chooser_host: Invalid client address.");
tmparr.data = (BYTE *) client_addr;
tmparr.length = strlen (client_address) / 2;
XdmcpWriteARRAY8 (&buffer, &tmparr);
XdmcpWriteCARD16 (&buffer, (CARD16) connection_type);
#ifdef ENABLE_IPV6
result = NULL;
memset (&hints, 0, sizeof (hints));
hints.ai_socktype = SOCK_STREAM;
status = getaddrinfo (hostname, NULL, &hints, &result);
if (status != 0)
gdm_chooser_abort ("gdm_chooser_chooser_host: Couldn't get host entry for %s", hostname);
if (result->ai_family == AF_INET6)
tmparr.length = 16;
if (result->ai_family == AF_INET)
tmparr.length = 4;
tmparr.data = (BYTE *) result->ai_addr;
#else
hentry = gethostbyname (hostname);
if (!hentry)
gdm_chooser_abort ("gdm_chooser_chooser_host: Couldn't get host entry for %s", hostname);
tmparr.data = (BYTE *) hentry->h_addr_list[0]; /* XXX */
tmparr.length = 4;
#endif
XdmcpWriteARRAY8 (&buffer, &tmparr);
write (fd, (char *) buffer.data, buffer.pointer);
close (fd);
}
}
static gboolean
add_check (gpointer data)
{
gboolean check = FALSE;
#ifdef ENABLE_IPV6
if (have_ipv6 && added6_addr != NULL)
check = TRUE;
else
#endif
if ((! have_ipv6) && added_addr != NULL)
check = TRUE;
if (check) {
GtkWidget *dialog;
dialog = ve_hig_dialog_new
(GTK_WINDOW (chooser) /* parent */,
GTK_DIALOG_MODAL /* flags */,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
FALSE /* markup */,
_("Did not receive response from server"),
_("Did not receive any response from host \"%s\" "
"in %d seconds. Perhaps the host is not "
"turned on, or is not willing to support a "
"login session right now. Please try again "
"later."),
added_host,
ADD_TIMEOUT / 1000);
if (RUNNING_UNDER_GDM)
gdm_wm_center_window (GTK_WINDOW (dialog));
gdm_wm_no_login_focus_push ();
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
gdm_wm_no_login_focus_pop ();
}
add_check_handler = 0;
return FALSE;
}
void
gdm_chooser_add_host (void)
{
struct hostent *hostent;
struct sockaddr_in *qa;
GdmChooserHost *host = NULL;
struct sockaddr_in sock;
gboolean status = FALSE;
const char *name;
#ifdef ENABLE_IPV6
struct sockaddr_in6 *qa6;
struct sockaddr_in6 sock6;
struct addrinfo hints, *result;
result = NULL;
memset (&hints, 0, sizeof (hints));
hints.ai_socktype = SOCK_DGRAM;
#endif
name = gtk_entry_get_text (GTK_ENTRY (add_entry));
if (ve_string_empty (name))
return;
qa = g_new0 (struct sockaddr_in, 1);
qa->sin_family = AF_INET;
#ifdef ENABLE_IPV6
qa6 = g_new0 (struct sockaddr_in6, 1);
qa6->sin6_family = AF_INET6;
if (have_ipv6 && strlen (name) == 32 && from_hex (name, (char *) &qa6->sin6_addr, strlen (name)) == 0) ;
else
#endif
if (strlen (name) == 8 && from_hex (name, (char *) &qa->sin_addr, strlen (name)) == 0) {
#ifdef ENABLE_IPV6
if (have_ipv6) {
char tmpaddr[30];
sprintf (tmpaddr, "::ffff:%s", inet_ntoa (qa->sin_addr));
inet_pton (AF_INET6, tmpaddr, &qa6->sin6_addr);
}
#endif
}
else
#ifdef ENABLE_IPV6
if (have_ipv6 && inet_pton (AF_INET6, name, &qa6->sin6_addr) > 0) ;
else
#endif
if (inet_aton (name, &(qa->sin_addr))) {
#ifdef ENABLE_IPV6
if (have_ipv6) {
char tmpaddr[30];
sprintf (tmpaddr, "::ffff:%s", inet_ntoa (qa->sin_addr));
inet_pton (AF_INET6, tmpaddr, &qa6->sin6_addr);
}
#endif
}
else
#ifdef ENABLE_IPV6
if (getaddrinfo (name, NULL, &hints, &result) == 0) {
if (result->ai_family == AF_INET6) {
memcpy (qa6, (struct sockaddr_in6 *)result->ai_addr, result->ai_addrlen);
}
else if (result->ai_family == AF_INET) {
if (have_ipv6) {
char tmpaddr [30];
sprintf (tmpaddr, "::ffff:%s", inet_ntoa(((struct sockaddr_in *)result->ai_addr)->sin_addr));
inet_pton (AF_INET6, tmpaddr, &qa6->sin6_addr);
}
}
}
else
#endif
if ((hostent = gethostbyname (name)) != NULL && hostent->h_addrtype == AF_INET && hostent->h_length == 4) {
memmove (&qa->sin_addr, hostent->h_addr, 4);
} else {
GtkWidget *dialog;
dialog = ve_hig_dialog_new
(GTK_WINDOW (chooser) /* parent */,
GTK_DIALOG_MODAL /* flags */,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
FALSE,
_("Cannot find host"),
_("Cannot find the host \"%s\". "
"Perhaps you have mistyped it."),
name);
if (RUNNING_UNDER_GDM)
gdm_wm_center_window (GTK_WINDOW (dialog));
gdm_wm_no_login_focus_push ();
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
gdm_wm_no_login_focus_pop ();
return; /* not a valid address */
}
#ifdef ENABLE_IPV6
if (have_ipv6) {
memset (&sock6, 0, sizeof (struct sockaddr_in6));
sock6.sin6_family = AF_INET6;
sock6.sin6_port = htons (XDM_UDP_PORT);
status = gdm_addr_known ((char *)&qa6->sin6_addr, AF_INET6);
if ( ! status) {
queryaddr = g_slist_append (queryaddr, qa6);
}
if (IN6_IS_ADDR_V4MAPPED (&qa6->sin6_addr)) {
memcpy (&qa->sin_addr, &(qa6->sin6_addr.s6_addr[12]), 4);
host = gdm_host_known ((char *) &qa->sin_addr, AF_INET);
}
else
host = gdm_host_known ((char *) &qa6->sin6_addr, AF_INET6);
} else
#endif
{
memset (&sock, 0, sizeof (struct sockaddr_in));
sock.sin_family = AF_INET;
sock.sin_port = htons (XDM_UDP_PORT);
status = gdm_addr_known ((char *)&qa->sin_addr, AF_INET);
if ( ! status) {
queryaddr = g_slist_append (queryaddr, qa);
}
host = gdm_host_known ((char *) &qa->sin_addr, AF_INET);
}
if (host != NULL) {
GtkTreeIter iter = {0};
if (find_host_in_list (host, &iter)) {
GtkTreeSelection *selection;
GtkTreePath *path = gtk_tree_model_get_path (browser_model, &iter);
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (browser));
gtk_tree_selection_select_iter (selection, &iter);
gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (browser),
path, NULL,
FALSE, 0.0, 0.0);
gtk_tree_path_free (path);
gtk_widget_grab_focus (manage);
} else {
/* hmm, probably not willing, ping the host then for
good measure */
#ifdef ENABLE_IPV6
if (have_ipv6) {
memcpy (&sock6.sin6_addr, &qa6->sin6_addr, sizeof (qa6->sin6_addr));
XdmcpFlush (sockfd, &querybuf, (XdmcpNetaddr) &sock6, (int) sizeof (struct sockaddr_in6));
added6_addr = &qa6->sin6_addr;
if (IN6_IS_ADDR_V4MAPPED (added6_addr))
added_addr = (struct in_addr *)&(qa6->sin6_addr.s6_addr[12]);
} else
#endif
{
sock.sin_addr.s_addr = qa->sin_addr.s_addr;
XdmcpFlush (sockfd, &querybuf, (XdmcpNetaddr) &sock, (int)sizeof (struct sockaddr_in));
added_addr = &qa->sin_addr;
}
g_free (added_host);
added_host = g_strdup (name);
if (add_check_handler > 0)
g_source_remove (add_check_handler);
add_check_handler = g_timeout_add (ADD_TIMEOUT,
add_check, NULL);
}
/* empty the text entry to indicate success */
gtk_entry_set_text (GTK_ENTRY (add_entry), "");
return;
}
#ifdef ENABLE_IPV6
if (have_ipv6) {
added6_addr = &qa6->sin6_addr;
if (IN6_IS_ADDR_V4MAPPED (added6_addr))
added_addr = (struct in_addr *)&(qa6->sin6_addr.s6_addr[12]);
memcpy (&sock6.sin6_addr, &qa6->sin6_addr, sizeof (struct in6_addr));
XdmcpFlush (sockfd, &querybuf, (XdmcpNetaddr) &sock6, (int)sizeof (struct sockaddr_in6));
} else
#endif
{
added_addr = &qa->sin_addr;
/* and send out the query */
sock.sin_addr.s_addr = qa->sin_addr.s_addr;
XdmcpFlush (sockfd, &querybuf, (XdmcpNetaddr) &sock, (int)sizeof (struct sockaddr_in));
}
g_free (added_host);
added_host = g_strdup (name);
if (add_check_handler > 0)
g_source_remove (add_check_handler);
add_check_handler = g_timeout_add (ADD_TIMEOUT,
add_check, NULL);
/* empty the text entry to indicate success */
gtk_entry_set_text (GTK_ENTRY (add_entry), "");
if (have_ipv6)
g_free (qa);
#ifdef ENABLE_IPV6
else
g_free (qa6);
#endif
}
void
gdm_chooser_add_entry_changed (void)
{
const char *name;
name = gtk_entry_get_text (GTK_ENTRY (add_entry));
gtk_widget_set_sensitive (add_button, ! ve_string_empty (name));
}
void
gdm_chooser_cancel (void)
{
if (scan_time_handler > 0) {
g_source_remove (scan_time_handler);
scan_time_handler = 0;
}
closelog ();
/* exit rather gtk_main_quit, it's just safer this way we don't
have to worry about random whackiness happening */
exit (EXIT_SUCCESS);
}
void
gdm_chooser_manage (GtkButton *button, gpointer data)
{
if (scan_time_handler > 0) {
g_source_remove (scan_time_handler);
scan_time_handler = 0;
}
if (curhost)
gdm_chooser_choose_host (curhost->name);
closelog();
/* exit rather gtk_main_quit, it's just safer this way we don't
have to worry about random whackiness happening */
exit (EXIT_SUCCESS);
}
static void
gdm_chooser_abort (const gchar *format, ...)
{
va_list args;
gchar *s;
va_start (args, format);
s = g_strdup_vprintf (format, args);
va_end (args);
syslog (LOG_ERR, "%s", s);
closelog ();
exit (EXIT_FAILURE);
}
static void
gdm_chooser_warn (const gchar *format, ...)
{
va_list args;
gchar *s;
va_start (args, format);
s = g_strdup_vprintf (format, args);
va_end (args);
syslog (LOG_ERR, "%s", s);
closelog ();
}
static void
gdm_chooser_parse_config (void)
{
VeConfig *cfg;
cfg = ve_config_get (GDM_CONFIG_FILE);
GdmXineramaScreen = ve_config_get_int (cfg, GDM_KEY_XINERAMASCREEN);
GdmGtkRC = ve_config_get_string (cfg, GDM_KEY_GTKRC);
GdmGtkTheme = ve_config_get_string (cfg, GDM_KEY_GTK_THEME);
GdmScanTime = ve_config_get_int (cfg, GDM_KEY_SCAN);
GdmHostDefaultIcon = ve_config_get_string (cfg, GDM_KEY_HOST);
GdmHostIconDir = ve_config_get_string (cfg, GDM_KEY_HOSTDIR);
GdmIconMaxWidth = ve_config_get_int (cfg, GDM_KEY_ICONWIDTH);
GdmIconMaxHeight = ve_config_get_int (cfg, GDM_KEY_ICONHEIGHT);
GdmDebug = ve_config_get_bool (cfg, GDM_KEY_DEBUG);
GdmBackgroundColor = ve_config_get_string (cfg, GDM_KEY_BACKGROUNDCOLOR);
GdmBackgroundType = ve_config_get_int (cfg, GDM_KEY_BACKGROUNDTYPE);
#ifdef ENABLE_IPV6
GdmMulticast = ve_config_get_bool (cfg, GDM_KEY_MULTICAST);
GdmMulticastAddr = ve_config_get_string (cfg, GDM_KEY_MULTICAST_ADDR);
#endif
GdmAllowAdd = ve_config_get_bool (cfg, GDM_KEY_ALLOWADD);
/* note that command line arguments will prevail over these */
GdmHosts = ve_config_get_string (cfg, GDM_KEY_HOSTS);
GdmHostsOrig = g_strdup (GdmHosts);
GdmBroadcast = ve_config_get_bool (cfg, GDM_KEY_BROADCAST);
/* if broadcasting, then append BROADCAST to hosts */
if (GdmBroadcast) {
if (ve_string_empty (GdmHosts)) {
g_free (GdmHosts);
GdmHosts = "BROADCAST";
} else {
char *tmp = g_strconcat (GdmHosts, ",BROADCAST", NULL);
g_free (GdmHosts);
GdmHosts = tmp;
}
}
#ifdef ENABLE_IPV6
if (GdmMulticast) {
if (ve_string_empty (GdmHosts)) {
g_free (GdmHosts);
GdmHosts = "MULTICAST";
} else {
GdmHosts = g_strconcat (GdmHosts, ",MULTICAST", NULL);
}
}
#endif
if (GdmScanTime < 1) GdmScanTime = 1;
if (GdmIconMaxWidth < 0) GdmIconMaxWidth = 128;
if (GdmIconMaxHeight < 0) GdmIconMaxHeight = 128;
}
static void
host_selected (GtkTreeSelection *selection, gpointer data)
{
GtkTreeModel *tm = NULL;
GtkTreeIter iter = {0};
curhost = NULL;
if (gtk_tree_selection_get_selected (selection, &tm, &iter)) {
gtk_tree_model_get (tm, &iter, CHOOSER_LIST_HOST_COLUMN,
&curhost, -1);
}
gtk_widget_set_sensitive (manage, curhost != NULL);
}
static void
row_activated (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column)
{
if (curhost != NULL)
gdm_chooser_manage (NULL, NULL);
}
void
display_chooser_information (void)
{
GtkWidget *dialog;
/* How to get HIG compliance? */
dialog = gtk_message_dialog_new
(GTK_WINDOW (chooser) /* parent */,
GTK_DIALOG_MODAL /* flags */,
GTK_MESSAGE_INFO,
GTK_BUTTONS_OK,
_("The main area of this application shows the hosts on "
"the local network that have \"XDMCP\" enabled. This "
"allows users to login remotely to other machines as "
"if they were logged on using the console.\n\n"
"You can rescan the network for new hosts by clicking "
"\"Refresh\". When you have selected a host click "
"\"Connect\" to open a session to that machine."));
gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);
if (RUNNING_UNDER_GDM)
gdm_wm_center_window (GTK_WINDOW (dialog));
gdm_wm_no_login_focus_push ();
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
gdm_wm_no_login_focus_pop ();
}
static void
gdm_chooser_gui_init (void)
{
int width;
int height;
GtkTreeSelection *selection;
GtkTreeViewColumn *column;
glade_helper_add_glade_directory (GDM_GLADE_DIR);
glade_helper_search_gnome_dirs (FALSE);
/* Enable theme */
if (RUNNING_UNDER_GDM) {
const char *theme_name;
if( ! ve_string_empty (GdmGtkRC))
gtk_rc_parse (GdmGtkRC);
theme_name = g_getenv ("GDM_GTK_THEME");
if (ve_string_empty (theme_name))
theme_name = GdmGtkTheme;
if ( ! ve_string_empty (theme_name)) {
gdm_set_theme (theme_name);
}
}
/* Load default host image */
if (access (GdmHostDefaultIcon, R_OK) != 0) {
gdm_chooser_warn (_("Can't open default host icon: %s"), GdmHostDefaultIcon);
/* bogus image */
defhostimg = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
FALSE /* has_alpha */,
8 /* bits_per_sample */,
48 /* width */,
48 /* height */);
} else {
defhostimg = gdk_pixbuf_new_from_file (GdmHostDefaultIcon, NULL);
}
/* Main window */
chooser_app = glade_helper_load ("gdmchooser.glade",
"gdmchooser_main",
GTK_TYPE_DIALOG,
FALSE /* dump_on_destroy */);
glade_xml_signal_autoconnect (chooser_app);
chooser = glade_helper_get (chooser_app, "gdmchooser_main",
GTK_TYPE_DIALOG);
manage = glade_helper_get (chooser_app, "connect_button",
GTK_TYPE_BUTTON);
rescan = glade_helper_get (chooser_app, "rescan_button",
GTK_TYPE_BUTTON);
cancel = glade_helper_get (chooser_app, "quit_button",
GTK_TYPE_BUTTON);
status_label = glade_helper_get (chooser_app, "status_label",
GTK_TYPE_LABEL);
add_entry = glade_helper_get (chooser_app, "add_entry",
GTK_TYPE_ENTRY);
add_button = glade_helper_get (chooser_app, "add_button",
GTK_TYPE_BUTTON);
browser = glade_helper_get (chooser_app, "chooser_iconlist",
GTK_TYPE_TREE_VIEW);
gtk_dialog_set_has_separator (GTK_DIALOG (chooser), FALSE);
gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (browser), TRUE);
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (browser));
gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
g_signal_connect (selection, "changed",
G_CALLBACK (host_selected),
NULL);
g_signal_connect (browser, "row_activated",
G_CALLBACK (row_activated),
NULL);
browser_model = (GtkTreeModel *)gtk_list_store_new (3,
GDK_TYPE_PIXBUF,
G_TYPE_STRING,
G_TYPE_POINTER);
gtk_tree_view_set_model (GTK_TREE_VIEW (browser), browser_model);
column = gtk_tree_view_column_new_with_attributes
("Icon",
gtk_cell_renderer_pixbuf_new (),
"pixbuf", CHOOSER_LIST_ICON_COLUMN,
NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (browser), column);
column = gtk_tree_view_column_new_with_attributes
("Hostname",
gtk_cell_renderer_text_new (),
"markup", CHOOSER_LIST_LABEL_COLUMN,
NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (browser), column);
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (browser_model),
CHOOSER_LIST_LABEL_COLUMN,
GTK_SORT_ASCENDING);
if ( ! GdmAllowAdd) {
GtkWidget *w = glade_helper_get (chooser_app, "add_hbox",
GTK_TYPE_HBOX);
gtk_widget_hide (w);
}
gtk_window_get_size (GTK_WINDOW (chooser),
&width, &height);
if (RUNNING_UNDER_GDM) {
if (width > gdm_wm_screen.width)
width = gdm_wm_screen.width;
if (height > gdm_wm_screen.height)
height = gdm_wm_screen.height;
} else {
if (width > gdk_screen_width ())
width = gdk_screen_width ();
if (height > gdk_screen_height ())
height = gdk_screen_height ();
}
gtk_widget_set_size_request (GTK_WIDGET (chooser),
width, height);
gtk_window_set_default_size (GTK_WINDOW (chooser),
width, height);
gtk_window_resize (GTK_WINDOW (chooser),
width, height);
/* cursor blinking is evil on remote displays, don't do it forever */
gdm_setup_blinking ();
gdm_setup_blinking_entry (add_entry);
if (RUNNING_UNDER_GDM) {
gtk_widget_show_now (chooser);
gdm_wm_center_window (GTK_WINDOW (chooser));
}
}
static gboolean
string_same (VeConfig *config, const char *cur, const char *key)
{
char *val = ve_config_get_string (config, key);
if (strcmp (ve_sure_string (cur), ve_sure_string (val)) == 0) {
g_free (val);
return TRUE;
} else {
g_free (val);
return FALSE;
}
}
static gboolean
bool_same (VeConfig *config, gboolean cur, const char *key)
{
gboolean val = ve_config_get_bool (config, key);
if (ve_bool_equal (cur, val)) {
return TRUE;
} else {
return FALSE;
}
}
static gboolean
int_same (VeConfig *config, int cur, const char *key)
{
int val = ve_config_get_int (config, key);
if (cur == val) {
return TRUE;
} else {
return FALSE;
}
}
static gboolean
gdm_reread_config (int sig, gpointer data)
{
VeConfig *config;
/* reparse config stuff here. At least ones we care about */
config = ve_config_get (GDM_CONFIG_FILE);
/* FIXME: The following is evil, we should update on the fly rather
* then just restarting */
/* Also we may not need to check ALL those keys but just a few */
if ( ! string_same (config, GdmHostsOrig, GDM_KEY_HOSTS) ||
! string_same (config, GdmGtkRC, GDM_KEY_GTKRC) ||
! string_same (config, GdmGtkTheme, GDM_KEY_GTK_THEME) ||
! string_same (config, GdmHostDefaultIcon, GDM_KEY_HOST) ||
! string_same (config, GdmHostIconDir, GDM_KEY_HOSTDIR) ||
! int_same (config,
GdmXineramaScreen, GDM_KEY_XINERAMASCREEN) ||
! int_same (config, GdmIconMaxWidth, GDM_KEY_ICONWIDTH) ||
! int_same (config, GdmIconMaxHeight, GDM_KEY_ICONHEIGHT) ||
! int_same (config, GdmScanTime, GDM_KEY_SCAN) ||
! bool_same (config, GdmDebug, GDM_KEY_DEBUG)) {
if (RUNNING_UNDER_GDM) {
/* Set busy cursor */
setup_cursor (GDK_WATCH);
gdm_wm_save_wm_order ();
}
/* we don't need to tell the slave that we're restarting
it doesn't care about our state. Unlike with the greeter */
execvp (stored_argv[0], stored_argv);
_exit (DISPLAY_REMANAGE);
}
/* we only use the color and do it for all types except NONE */
if ( ! string_same (config, GdmBackgroundColor, GDM_KEY_BACKGROUNDCOLOR) ||
! int_same (config, GdmBackgroundType, GDM_KEY_BACKGROUNDTYPE)) {
set_background ();
}
return TRUE;
}
static void
gdm_chooser_signals_init (void)
{
struct sigaction hup;
struct sigaction term;
sigset_t mask;
ve_signal_add (SIGHUP, gdm_reread_config, NULL);
hup.sa_handler = ve_signal_notify;
hup.sa_flags = 0;
sigemptyset(&hup.sa_mask);
sigaddset (&hup.sa_mask, SIGCHLD);
term.sa_handler = (void *) gdm_chooser_cancel;
term.sa_flags = 0;
sigemptyset (&term.sa_mask);
if (sigaction (SIGHUP, &hup, NULL) < 0)
gdm_chooser_abort (_("%s: Error setting up %s signal handler: %s"), "gdm_signals_init", "HUP", strerror (errno));
if (sigaction (SIGINT, &term, NULL) < 0)
gdm_chooser_abort (_("%s: Error setting up %s signal handler: %s"), "gdm_signals_init", "INT", strerror (errno));
if (sigaction (SIGTERM, &term, NULL) < 0)
gdm_chooser_abort (_("%s: Error setting up %s signal handler: %s"), "gdm_signals_init", "TERM", strerror (errno));
sigfillset (&mask);
sigdelset (&mask, SIGTERM);
sigdelset (&mask, SIGHUP);
sigdelset (&mask, SIGINT);
if (sigprocmask (SIG_SETMASK, &mask, NULL) == -1)
gdm_chooser_abort (_("Could not set signal mask!"));
}
struct poptOption xdm_options [] = {
{ "xdmaddress", '\0', POPT_ARG_STRING | POPT_ARGFLAG_ONEDASH,
&xdm_address, 0,
N_("Socket for xdm communication"), N_("SOCKET") },
{ "clientaddress", '\0', POPT_ARG_STRING | POPT_ARGFLAG_ONEDASH,
&client_address, 0,
N_("Client address to return in response to xdm"), N_("ADDRESS") },
{ "connectionType", '\0', POPT_ARG_INT|POPT_ARGFLAG_ONEDASH,
&connection_type, 0,
N_("Connection type to return in response to xdm"), N_("TYPE") },
POPT_AUTOHELP
{ NULL, 0, 0, NULL, 0}
};
static void
set_background (void)
{
if (GdmBackgroundType != GDM_BACKGROUND_NONE) {
GdkColor color;
GdkColormap *colormap;
if (ve_string_empty (GdmBackgroundColor) ||
! gdk_color_parse (GdmBackgroundColor, &color)) {
gdk_color_parse ("#007777", &color);
}
colormap = gdk_drawable_get_colormap
(gdk_get_default_root_window ());
/* paranoia */
if (colormap != NULL) {
gboolean success;
gdk_error_trap_push ();
gdk_colormap_alloc_colors (colormap, &color, 1,
FALSE, TRUE, &success);
gdk_window_set_background (gdk_get_default_root_window (), &color);
gdk_window_clear (gdk_get_default_root_window ());
gdk_flush ();
gdk_error_trap_pop ();
}
}
}
static gboolean
gdm_event (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data)
{
GdkEvent *event;
/* HAAAAAAAAAAAAAAAAACK */
/* Since the user has not logged in yet and may have left/right
* mouse buttons switched, we just translate every right mouse click
* to a left mouse click */
if (n_param_values != 2 ||
!G_VALUE_HOLDS (¶m_values[1], GDK_TYPE_EVENT))
return FALSE;
event = g_value_get_boxed (¶m_values[1]);
if ((event->type == GDK_BUTTON_PRESS ||
event->type == GDK_2BUTTON_PRESS ||
event->type == GDK_3BUTTON_PRESS ||
event->type == GDK_BUTTON_RELEASE)
&& event->button.button == 3)
event->button.button = 1;
return TRUE;
}
int
main (int argc, char *argv[])
{
char **hosts;
poptContext ctx;
int nextopt;
const char *gdm_version;
int i;
stored_argv = g_new0 (char *, argc + 1);
for (i = 0; i < argc; i++)
stored_argv[i] = g_strdup (argv[i]);
stored_argv[i] = NULL;
stored_argc = argc;
if (g_getenv ("RUNNING_UNDER_GDM") != NULL)
RUNNING_UNDER_GDM = TRUE;
openlog ("gdmchooser", LOG_PID, LOG_DAEMON);
bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
gtk_init (&argc, &argv);
ctx = poptGetContext ("gdm", argc, (const char **) argv,
xdm_options, 0);
while ((nextopt = poptGetNextOpt (ctx)) > 0 || nextopt == POPT_ERROR_BADOPT)
/* do nothing */ ;
if (nextopt != -1) {
g_print (_("Error on option %s: %s.\nRun '%s --help' to see a full list of available command line options.\n"),
poptBadOption (ctx, 0),
poptStrerror (nextopt),
argv[0]);
exit (1);
}
/* Should be a watch already, but just in case */
if (RUNNING_UNDER_GDM)
setup_cursor (GDK_WATCH);
glade_init();
gdm_chooser_parse_config();
if (RUNNING_UNDER_GDM)
gdm_wm_screen_init (GdmXineramaScreen);
gdm_version = g_getenv ("GDM_VERSION");
if (RUNNING_UNDER_GDM &&
gdm_version != NULL &&
strcmp (gdm_version, VERSION) != 0) {
GtkWidget *dialog;
gdm_wm_init (0);
gdm_wm_focus_new_windows (TRUE);
dialog = ve_hig_dialog_new (NULL /* parent */,
GTK_DIALOG_MODAL /* flags */,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
FALSE /* markup */,
_("Cannot run chooser"),
_("The chooser version (%s) does not match the daemon "
"version (%s). "
"You have probably just upgraded gdm. "
"Please restart the gdm daemon or reboot the computer."),
VERSION, gdm_version);
gtk_widget_show_all (dialog);
gdm_wm_center_window (GTK_WINDOW (dialog));
setup_cursor (GDK_LEFT_PTR);
gtk_dialog_run (GTK_DIALOG (dialog));
return EXIT_SUCCESS;
}
gdm_chooser_gui_init();
gdm_chooser_signals_init();
if (RUNNING_UNDER_GDM)
set_background ();
hosts = (char **)poptGetArgs (ctx);
/* when no hosts on the command line, take them from the config */
if (hosts == NULL ||
hosts[0] == NULL) {
int i;
hosts = g_strsplit (GdmHosts, ",", -1);
for (i = 0; hosts != NULL && hosts[i] != NULL; i++) {
g_strstrip (hosts[i]);
}
}
gdm_chooser_xdmcp_init (hosts);
poptFreeContext (ctx);
guint sid = g_signal_lookup ("event",
GTK_TYPE_WIDGET);
g_signal_add_emission_hook (sid,
0 /* detail */,
gdm_event,
NULL /* data */,
NULL /* destroy_notify */);
gtk_widget_queue_resize (chooser);
gtk_widget_show_now (chooser);
if (RUNNING_UNDER_GDM)
gdm_wm_center_window (GTK_WINDOW (chooser));
if (RUNNING_UNDER_GDM &&
/* can it ever happen that it'd be NULL here ??? */
chooser->window != NULL) {
gdm_wm_init (GDK_WINDOW_XWINDOW (chooser->window));
/* Run the focus, note that this will work no matter what
* since gdm_wm_init will set the display to the gdk one
* if it fails */
gdm_wm_focus_window (GDK_WINDOW_XWINDOW (chooser->window));
}
if (GdmAllowAdd)
gtk_widget_grab_focus (add_entry);
gdm_chooser_add_entry_changed ();
if (RUNNING_UNDER_GDM) {
gdm_wm_restore_wm_order ();
setup_cursor (GDK_LEFT_PTR);
}
gtk_main();
exit (EXIT_SUCCESS);
}
/* EOF */
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