diff options
Diffstat (limited to 'daemon/choose.c')
| -rw-r--r-- | daemon/choose.c | 429 |
1 files changed, 0 insertions, 429 deletions
diff --git a/daemon/choose.c b/daemon/choose.c deleted file mode 100644 index aa40c84b..00000000 --- a/daemon/choose.c +++ /dev/null @@ -1,429 +0,0 @@ -/* 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 - */ - -/* This file contains the XDMCP chooser glue */ - -#include "config.h" - -#include <stdio.h> -#include <stdlib.h> -#include <syslog.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <errno.h> -#include <X11/Xlib.h> -#include <X11/Xmd.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 <sys/utsname.h> -#include <fcntl.h> - -#include "gdm.h" -#include "misc.h" -#include "choose.h" -#include "xdmcp.h" -#include "gdmconfig.h" - -static gint ipending = 0; -static GSList *indirect = NULL; - -static guint indirect_id = 1; - -static gboolean -remove_oldest_pending (void) -{ - GSList *li; - GdmIndirectDisplay *oldest = NULL; - - for (li = indirect; li != NULL; li = li->next) { - GdmIndirectDisplay *idisp = li->data; - if (idisp->acctime == 0) - continue; - - if (oldest == NULL || - idisp->acctime < oldest->acctime) { - oldest = idisp; - } - } - - if (oldest != NULL) { - gdm_choose_indirect_dispose (oldest); - return TRUE; - } else { - return FALSE; - } -} - -gboolean -gdm_choose_data (const char *data) -{ - int id; - int t; - int status = 0; /* 4 for IPv4 and 6 for IPv6 */ - struct in_addr addr; -#ifdef ENABLE_IPV6 - struct in6_addr addr6; -#endif - GSList *li; - char *msg = g_strdup (data); - char *p; - - p = strtok (msg, " "); - if (p == NULL || strcmp (GDM_SOP_CHOSEN, p) != 0) { - g_free (msg); - return FALSE; - } - - p = strtok (NULL, " "); - if (p == NULL || sscanf (p, "%d", &id) != 1) { - g_free (msg); - return FALSE; - } - - p = strtok (NULL, " "); - - if (p == NULL) { - g_free (msg); - return FALSE; - } - - t = inet_pton (AF_INET, p, &addr); /* Check if address is IPv4 */ - - if (t > 0) - status = AF_INET; /* Yes, it's an IPv4 address */ - else - { - if (t == 0) { /* It might be an IPv6 one */ -#ifdef ENABLE_IPV6 - t = inet_pton (AF_INET6, p, &addr6); -#endif - if (t > 0) - status = AF_INET6; - } - } - - if (p == NULL || t <= 0) { - g_free (msg); - return FALSE; - } - - g_free (msg); - - -#ifdef ENABLE_IPV6 - if (status == AF_INET6) { - char buffer6[INET6_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_data: got indirect id: %d address: %s", id, inet_ntop (AF_INET6, &addr6, buffer6, INET6_ADDRSTRLEN)); - } - else -#endif - { - char buffer[INET_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_data: got indirect id: %d address: %s", id, inet_ntop (AF_INET, &addr, buffer, INET_ADDRSTRLEN)); - } - - for (li = indirect; li != NULL; li = li->next) { - GdmIndirectDisplay *idisp = li->data; - if (idisp->id == id) { - /* whack the oldest if more then allowed */ - while (ipending >= gdm_get_value_int (GDM_KEY_MAX_INDIRECT) && - remove_oldest_pending ()) - ; - - idisp->acctime = time (NULL); -#ifdef ENABLE_IPV6 - if (status == AF_INET6) { - g_free (idisp->chosen_host6); - idisp->chosen_host6 = g_new (struct in6_addr, 1); - memcpy (idisp->chosen_host6, &addr6, sizeof (struct in6_addr)); - } - else -#endif - { - g_free (idisp->chosen_host); - idisp->chosen_host = g_new (struct in_addr, 1); - memcpy (idisp->chosen_host, &addr, sizeof (struct in_addr)); - } - - /* Now this display is pending */ - ipending++; - - return TRUE; - } - } - - return FALSE; -} - - -GdmIndirectDisplay * -#ifdef ENABLE_IPV6 -gdm_choose_indirect_alloc (struct sockaddr_storage *clnt_sa) -#else -gdm_choose_indirect_alloc (struct sockaddr_in *clnt_sa) -#endif -{ - GdmIndirectDisplay *id; - - if (clnt_sa == NULL) - return NULL; - - id = g_new0 (GdmIndirectDisplay, 1); - id->id = indirect_id++; - /* deal with a rollover, that will NEVER EVER happen, - * but I'm a paranoid bastard */ - if (id->id == 0) - id->id = indirect_id++; -#ifdef ENABLE_IPV6 - id->dsp_sa = g_new0 (struct sockaddr_storage, 1); - memcpy (id->dsp_sa, clnt_sa, sizeof (struct sockaddr_storage)); - id->chosen_host6 = NULL; -#else - id->dsp_sa = g_new0 (struct sockaddr_in, 1); - memcpy (id->dsp_sa, clnt_sa, sizeof (struct sockaddr_in)); -#endif - id->acctime = 0; - id->chosen_host = NULL; - - indirect = g_slist_prepend (indirect, id); - -#ifdef ENABLE_IPV6 - if (clnt_sa->ss_family == AF_INET6) { - char buffer6[INET6_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_display_alloc: display=%s, pending=%d ", inet_ntop (AF_INET6, &(((struct sockaddr_in6 *)(id->dsp_sa))->sin6_addr), buffer6, INET6_ADDRSTRLEN), ipending); - } - else -#endif - { - char buffer[INET_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_display_alloc: display=%s, pending=%d ", inet_ntop (AF_INET, &((struct sockaddr_in *)(id->dsp_sa))->sin_addr, buffer, INET_ADDRSTRLEN), ipending); - } - - return (id); -} - -/* dispose of indirect display of id, if no host is set */ -void -gdm_choose_indirect_dispose_empty_id (guint id) -{ - GSList *li; - - if (id == 0) - return; - - for (li = indirect; li != NULL; li = li->next) { - GdmIndirectDisplay *idisp = li->data; - - if (idisp == NULL) - continue; - - if (idisp->id == id) { - if ( -#ifdef ENABLE_IPV6 - (idisp->chosen_host6 == NULL) || -#endif - (idisp->chosen_host == NULL)) - gdm_choose_indirect_dispose (idisp); - return; - } - } -} - -#ifdef ENABLE_IPV6 -GdmIndirectDisplay * -gdm_choose_indirect_lookup_by_chosen6 (struct in6_addr *chosen, - struct in6_addr *origin) -{ - GSList *li; - char buffer6[INET6_ADDRSTRLEN]; - - for (li = indirect; li != NULL; li = li->next) { - GdmIndirectDisplay *id = li->data; - - if (id != NULL && - id->chosen_host6 != NULL && - id->chosen_host6->s6_addr == chosen->s6_addr) { - - if (((struct sockaddr_in6 *)(id->dsp_sa))->sin6_addr.s6_addr == origin->s6_addr) { - return id; - } else if (gdm_is_loopback_addr6 (&(((struct sockaddr_in6 *)(id->dsp_sa))->sin6_addr)) && gdm_is_local_addr6 (origin)) { - return id; - } - } - } - - gdm_debug ("gdm_choose_indirect_lookup_by_chosen: Chosen %s host not found", inet_ntop (AF_INET6, chosen, buffer6, INET6_ADDRSTRLEN)); - - gdm_debug ("gdm_choose_indirect_lookup_by_chosen: Origin was: %s", inet_ntop (AF_INET6, origin, buffer6, INET6_ADDRSTRLEN)); - - return NULL; -} -#endif - - -GdmIndirectDisplay * -gdm_choose_indirect_lookup_by_chosen (struct in_addr *chosen, - struct in_addr *origin) -{ - GSList *li; - - for (li = indirect; li != NULL; li = li->next) { - GdmIndirectDisplay *id = li->data; - if (id != NULL && - id->chosen_host != NULL && - id->chosen_host->s_addr == chosen->s_addr) { - if (((struct sockaddr_in *)(id->dsp_sa))->sin_addr.s_addr == origin->s_addr) { - return id; - } else if (gdm_is_loopback_addr (&(((struct sockaddr_in *)(id->dsp_sa))->sin_addr)) && - gdm_is_local_addr (origin)) { - return id; - } - } - } - - gdm_debug ("gdm_choose_indirect_lookup_by_chosen: Chosen %s host not found", - inet_ntoa (*chosen)); - gdm_debug ("gdm_choose_indirect_lookup_by_chosen: Origin was: %s", - inet_ntoa (*origin)); - - return NULL; -} - - -GdmIndirectDisplay * -#ifdef ENABLE_IPV6 -gdm_choose_indirect_lookup (struct sockaddr_storage *clnt_sa) -#else -gdm_choose_indirect_lookup (struct sockaddr_in *clnt_sa) -#endif -{ - GSList *li, *ilist; - GdmIndirectDisplay *id; - time_t curtime = time (NULL); - - ilist = g_slist_copy (indirect); - - for (li = ilist; li != NULL; li = li->next) { - id = (GdmIndirectDisplay *) li->data; - if (id == NULL) - continue; - - if (id->acctime > 0 && - curtime > id->acctime + gdm_get_value_int (GDM_KEY_MAX_WAIT_INDIRECT)) { -#ifdef ENABLE_IPV6 - if (clnt_sa->ss_family == AF_INET6) { - char buffer6[INET6_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_indirect_check: Disposing stale INDIRECT query from %s", inet_ntop (AF_INET6, &(((struct sockaddr_in6 *)clnt_sa)->sin6_addr), buffer6, INET6_ADDRSTRLEN)); - } - else -#endif - { - char buffer[INET_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_indirect_check: Disposing stale INDIRECT query from %s", inet_ntop (AF_INET, &((struct sockaddr_in *)clnt_sa)->sin_addr, buffer, INET_ADDRSTRLEN)); - } - - gdm_choose_indirect_dispose (id); - continue; - } - -#ifdef ENABLE_IPV6 - if (clnt_sa->ss_family == AF_INET6) { - if (memcmp (((struct sockaddr_in6 *)(id->dsp_sa))->sin6_addr.s6_addr, ((struct sockaddr_in6 *)clnt_sa)->sin6_addr.s6_addr, sizeof (struct in6_addr)) == 0) { - g_slist_free (ilist); - return id; - } - } - else -#endif - { - if (((struct sockaddr_in *)(id->dsp_sa))->sin_addr.s_addr == ((struct sockaddr_in *)clnt_sa)->sin_addr.s_addr) { - g_slist_free (ilist); - return id; - } - } - } - g_slist_free (ilist); - -#ifdef ENABLE_IPV6 - if (clnt_sa->ss_family == AF_INET6) { - char buffer6[INET6_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_indirect_lookup: Host %s not found", inet_ntop (AF_INET6, &((struct sockaddr_in6 *)clnt_sa)->sin6_addr, buffer6, INET6_ADDRSTRLEN)); - } - else -#endif - { - char buffer[INET_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_indirect_lookup: Host %s not found", inet_ntop (AF_INET, &((struct sockaddr_in *)clnt_sa)->sin_addr, buffer, INET_ADDRSTRLEN)); - } - - return NULL; -} - - -void -gdm_choose_indirect_dispose (GdmIndirectDisplay *id) -{ - if (id == NULL) - return; - - indirect = g_slist_remove (indirect, id); - - if (id->acctime > 0) - ipending--; - id->acctime = 0; - -#ifdef ENABLE_IPV6 - if (id->dsp_sa->ss_family == AF_INET6) { - char buffer6[INET6_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_indirect_dispose: Disposing %s", inet_ntop (AF_INET6, &(((struct sockaddr_in6 *)(id->dsp_sa))->sin6_addr), buffer6, INET6_ADDRSTRLEN)); - g_free (id->chosen_host6); - id->chosen_host6 = NULL; - } - else -#endif - { - char buffer[INET_ADDRSTRLEN]; - - gdm_debug ("gdm_choose_indirect_dispose: Disposing %s", inet_ntop (AF_INET, &((struct sockaddr_in *)(id->dsp_sa))->sin_addr, -buffer, INET_ADDRSTRLEN)); - g_free (id->chosen_host); - id->chosen_host = NULL; - } - - g_free (id->dsp_sa); - id->dsp_sa = NULL; - - g_free (id); -} - - -/* EOF */ |