summaryrefslogtreecommitdiff
path: root/daemon/gdm-daemon-config.c
diff options
context:
space:
mode:
Diffstat (limited to 'daemon/gdm-daemon-config.c')
-rw-r--r--daemon/gdm-daemon-config.c2957
1 files changed, 0 insertions, 2957 deletions
diff --git a/daemon/gdm-daemon-config.c b/daemon/gdm-daemon-config.c
deleted file mode 100644
index 0c39c83f..00000000
--- a/daemon/gdm-daemon-config.c
+++ /dev/null
@@ -1,2957 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
- *
- * GDM - The GNOME Display Manager
- * Copyright (C) 1998, 1999, 2000 Martin K. Petersen <mkp@mkp.net>
- * Copyright (C) 2005 Brian Cameron <brian.cameron@sun.com>
- *
- * 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
- */
-
-/*
- * gdm-daemon-config.c isolates most logic that interacts with GDM
- * configuration into a single file and provides a mechanism for
- * interacting with GDM configuration optins via access functions for
- * getting/setting values. This logic also ensures that the same
- * configuration validation happens when loading the values initially
- * or setting them via the GDM_UPDATE_CONFIG socket command.
- *
- * When adding a new configuration option, simply add the new option
- * to gdm-daemon-config-entries.h. Any validation for the
- * configuration option should be placed in the validate_cb function.
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/stat.h>
-#include <sys/resource.h>
-#include <signal.h>
-#include <pwd.h>
-#include <grp.h>
-
-#include <glib.h>
-#include <glib/gi18n.h>
-
-#include "gdm.h"
-#include "verify.h"
-#include "gdm-net.h"
-#include "misc.h"
-#include "server.h"
-#include "filecheck.h"
-#include "slave.h"
-
-#include "gdm-common.h"
-#include "gdm-config.h"
-#include "gdm-log.h"
-#include "gdm-daemon-config.h"
-
-#include "gdm-socket-protocol.h"
-
-static GdmConfig *daemon_config = NULL;
-
-static GSList *displays = NULL;
-static GSList *xservers = NULL;
-
-static gint high_display_num = 0;
-static char *custom_config_file = NULL;
-
-static uid_t GdmUserId; /* Userid under which gdm should run */
-static gid_t GdmGroupId; /* Gruopid under which gdm should run */
-
-/**
- * is_key
- *
- * Since GDM keys sometimes have default values defined in the gdm.h header
- * file (e.g. key=value), this function strips off the "=value" from both
- * keys passed and compares them, returning TRUE if they are the same,
- * FALSE otherwise.
- */
-static gboolean
-is_key (const gchar *key1, const gchar *key2)
-{
- gchar *key1d, *key2d, *p;
-
- key1d = g_strdup (key1);
- key2d = g_strdup (key2);
-
- g_strstrip (key1d);
- p = strchr (key1d, '=');
- if (p != NULL)
- *p = '\0';
-
- g_strstrip (key2d);
- p = strchr (key2d, '=');
- if (p != NULL)
- *p = '\0';
-
- if (strcmp (ve_sure_string (key1d), ve_sure_string (key2d)) == 0) {
- g_free (key1d);
- g_free (key2d);
- return TRUE;
- } else {
- g_free (key1d);
- g_free (key2d);
- return FALSE;
- }
-}
-
-/**
- * gdm_daemon_config_get_per_display_custom_config_file
- *
- * Returns the per-display config file for a given display
- * This is always the custom config file name with the display
- * appended, and never gdm.conf.
- */
-static gchar *
-gdm_daemon_config_get_per_display_custom_config_file (const gchar *display)
-{
- return g_strdup_printf ("%s%s", custom_config_file, display);
-}
-
-/**
- * gdm_daemon_config_get_custom_config_file
- *
- * Returns the custom config file being used.
- */
-gchar *
-gdm_daemon_config_get_custom_config_file (void)
-{
- return custom_config_file;
-}
-
-/**
- * gdm_daemon_config_get_display_list
- *
- * Returns the list of displays being used.
- */
-GSList *
-gdm_daemon_config_get_display_list (void)
-{
- return displays;
-}
-
-GSList *
-gdm_daemon_config_display_list_append (GdmDisplay *display)
-{
- displays = g_slist_append (displays, display);
- return displays;
-}
-
-GSList *
-gdm_daemon_config_display_list_insert (GdmDisplay *display)
-{
- displays = g_slist_insert_sorted (displays,
- display,
- gdm_daemon_config_compare_displays);
- return displays;
-}
-
-GSList *
-gdm_daemon_config_display_list_remove (GdmDisplay *display)
-{
- displays = g_slist_remove (displays, display);
-
- return displays;
-}
-
-/**
- * gdm_daemon_config_get_value_int
- *
- * Gets an integer configuration option by key. The option must
- * first be loaded, say, by calling gdm_config_parse.
- */
-gint
-gdm_daemon_config_get_value_int (const char *keystring)
-{
- gboolean res;
- GdmConfigValue *value;
- char *group;
- char *key;
- int result;
-
- result = 0;
-
- res = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- NULL,
- NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- goto out;
- }
-
- res = gdm_config_get_value (daemon_config,
- group,
- key,
- &value);
- if (! res) {
- gdm_error ("Request for invalid configuration key %s", keystring);
- goto out;
- }
-
- if (value->type != GDM_CONFIG_VALUE_INT) {
- gdm_error ("Request for configuration key %s, but not type INT", keystring);
- goto out;
- }
-
- result = gdm_config_value_get_int (value);
- out:
- g_free (group);
- g_free (key);
-
- return result;
-}
-
-/**
- * gdm_daemon_config_get_value_string
- *
- * Gets a string configuration option by key. The option must
- * first be loaded, say, by calling gdm_daemon_config_parse.
- */
-const char *
-gdm_daemon_config_get_value_string (const char *keystring)
-{
- gboolean res;
- GdmConfigValue *value;
- char *group;
- char *key;
- const char *result;
-
- result = NULL;
-
- res = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- NULL,
- NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- goto out;
- }
-
- res = gdm_config_get_value (daemon_config,
- group,
- key,
- &value);
- if (! res) {
- gdm_error ("Request for invalid configuration key %s", keystring);
- goto out;
- }
-
- if (value->type != GDM_CONFIG_VALUE_STRING) {
- gdm_error ("Request for configuration key %s, but not type STRING", keystring);
- goto out;
- }
-
- result = gdm_config_value_get_string (value);
- out:
- g_free (group);
- g_free (key);
-
- return result;
-}
-
-/**
- * gdm_daemon_config_get_value_string_array
- *
- * Gets a string configuration option by key. The option must
- * first be loaded, say, by calling gdm_daemon_config_parse.
- */
-const char **
-gdm_daemon_config_get_value_string_array (const char *keystring)
-{
- gboolean res;
- GdmConfigValue *value;
- char *group;
- char *key;
- const char **result;
-
- result = NULL;
-
- res = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- NULL,
- NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- goto out;
- }
-
- res = gdm_config_get_value (daemon_config,
- group,
- key,
- &value);
- if (! res) {
- gdm_error ("Request for invalid configuration key %s", keystring);
- goto out;
- }
-
- if (value->type != GDM_CONFIG_VALUE_STRING_ARRAY) {
- gdm_error ("Request for configuration key %s, but not type STRING-ARRAY", keystring);
- goto out;
- }
-
- result = gdm_config_value_get_string_array (value);
- out:
- g_free (group);
- g_free (key);
-
- return result;
-}
-
-/**
- * gdm_daemon_config_get_bool_for_id
- *
- * Gets a boolean configuration option by ID. The option must
- * first be loaded, say, by calling gdm_daemon_config_parse.
- */
-gboolean
-gdm_daemon_config_get_bool_for_id (int id)
-{
- gboolean val;
-
- val = FALSE;
- gdm_config_get_bool_for_id (daemon_config, id, &val);
-
- return val;
-}
-
-/**
- * gdm_daemon_config_get_int_for_id
- *
- * Gets a integer configuration option by ID. The option must
- * first be loaded, say, by calling gdm_daemon_config_parse.
- */
-int
-gdm_daemon_config_get_int_for_id (int id)
-{
- int val;
-
- val = -1;
- gdm_config_get_int_for_id (daemon_config, id, &val);
-
- return val;
-}
-
-/**
- * gdm_daemon_config_get_string_for_id
- *
- * Gets a string configuration option by ID. The option must
- * first be loaded, say, by calling gdm_daemon_config_parse.
- */
-const char *
-gdm_daemon_config_get_string_for_id (int id)
-{
- const char *val;
-
- val = NULL;
- gdm_config_peek_string_for_id (daemon_config, id, &val);
-
- return val;
-}
-
-/**
- * gdm_daemon_config_get_value_bool
- *
- * Gets a boolean configuration option by key. The option must
- * first be loaded, say, by calling gdm_daemon_config_parse.
- */
-gboolean
-gdm_daemon_config_get_value_bool (const char *keystring)
-{
- gboolean res;
- GdmConfigValue *value;
- char *group;
- char *key;
- gboolean result;
-
- result = FALSE;
-
- res = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- NULL,
- NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- goto out;
- }
-
- res = gdm_config_get_value (daemon_config,
- group,
- key,
- &value);
- if (! res) {
- gdm_error ("Request for invalid configuration key %s", keystring);
- goto out;
- }
-
- if (value->type != GDM_CONFIG_VALUE_BOOL) {
- gdm_error ("Request for configuration key %s, but not type BOOLEAN", keystring);
- goto out;
- }
-
- result = gdm_config_value_get_bool (value);
- out:
- g_free (group);
- g_free (key);
-
- return result;
-}
-
-/**
- * Note that some GUI configuration parameters are read by the daemon,
- * and in order for them to work, it is necessary for the daemon to
- * access a few keys in a per-display fashion. These access functions
- * allow the daemon to access these keys properly.
- */
-
-/**
- * gdm_daemon_config_get_value_int_per_display
- *
- * Gets the per-display version of the configuration, or the default
- * value if none exists.
- */
-int
-gdm_daemon_config_get_value_int_per_display (const char *key,
- const char *display)
-{
- char *perdispval;
- gboolean res;
-
- res = gdm_daemon_config_key_to_string_per_display (key, display, &perdispval);
-
- if (res) {
- int val;
- val = atoi (perdispval);
- g_free (perdispval);
- return val;
- } else {
- return gdm_daemon_config_get_value_int (key);
- }
-}
-
-/**
- * gdm_daemon_config_get_value_bool_per_display
- *
- * Gets the per-display version of the configuration, or the default
- * value if none exists.
- */
-gboolean
-gdm_daemon_config_get_value_bool_per_display (const char *key,
- const char *display)
-{
- char *perdispval;
- gboolean res;
-
- res = gdm_daemon_config_key_to_string_per_display (key, display, &perdispval);
-
- if (res) {
- if (perdispval[0] == 'T' ||
- perdispval[0] == 't' ||
- perdispval[0] == 'Y' ||
- perdispval[0] == 'y' ||
- atoi (perdispval) != 0) {
- g_free (perdispval);
- return TRUE;
- } else {
- return FALSE;
- }
- } else {
- return gdm_daemon_config_get_value_bool (key);
- }
-}
-
-/**
- * gdm_daemon_config_get_value_string_per_display
- *
- * Gets the per-display version of the configuration, or the default
- * value if none exists. Note that this value needs to be freed,
- * unlike the non-per-display version.
- */
-char *
-gdm_daemon_config_get_value_string_per_display (const char *key,
- const char *display)
-{
- char *perdispval;
- gboolean res;
-
- res = gdm_daemon_config_key_to_string_per_display (key, display, &perdispval);
-
- if (res) {
- return perdispval;
- } else {
- return g_strdup (gdm_daemon_config_get_value_string (key));
- }
-}
-
-/**
- * gdm_daemon_config_key_to_string_per_display
- *
- * If the key makes sense to be per-display, return the value,
- * otherwise return NULL. Keys that only apply to the daemon
- * process do not make sense for per-display configuration
- * Valid keys include any key in the greeter or gui categories,
- * and the GDM_KEY_PAM_STACK key.
- *
- * If additional keys make sense for per-display usage, make
- * sure they are added to the if-test below.
- */
-gboolean
-gdm_daemon_config_key_to_string_per_display (const char *keystring,
- const char *display,
- char **retval)
-{
- char *file;
- char *group;
- char *key;
- gboolean res;
- gboolean ret;
-
- ret = FALSE;
-
- *retval = NULL;
- group = key = NULL;
-
- if (display == NULL) {
- goto out;
- }
-
- g_debug ("Looking up per display value for %s", keystring);
-
- res = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- NULL,
- NULL);
- if (! res) {
- goto out;
- }
-
- file = gdm_daemon_config_get_per_display_custom_config_file (display);
-
- if (strcmp (group, "greeter") == 0 ||
- strcmp (group, "gui") == 0 ||
- is_key (keystring, GDM_KEY_PAM_STACK)) {
- ret = gdm_daemon_config_key_to_string (file, keystring, retval);
- }
-
- g_free (file);
-
- out:
- g_free (group);
- g_free (key);
-
- return ret;
-}
-
-/**
- * gdm_daemon_config_key_to_string
- *
- * Gets a specific key from the config file.
- * Note this returns the value in string form, so the caller needs
- * to parse it properly if it is a bool or int.
- *
- * Returns TRUE if successful..
- */
-gboolean
-gdm_daemon_config_key_to_string (const char *file,
- const char *keystring,
- char **retval)
-{
- GKeyFile *config;
- GdmConfigValueType type;
- gboolean res;
- gboolean ret;
- char *group;
- char *key;
- char *locale;
- char *result;
- const GdmConfigEntry *entry;
-
- if (retval != NULL) {
- *retval = NULL;
- }
-
- ret = FALSE;
- result = NULL;
-
- group = key = locale = NULL;
- res = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- &locale,
- NULL);
- g_debug ("Requesting group=%s key=%s locale=%s", group, key, locale ? locale : "(null)");
-
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- goto out;
- }
-
- entry = gdm_config_lookup_entry (daemon_config, group, key);
- if (entry == NULL) {
- gdm_error ("Request for invalid configuration key %s", keystring);
- goto out;
- }
- type = entry->type;
-
- config = gdm_common_config_load (file, NULL);
- /* If file doesn't exist, then just return */
- if (config == NULL) {
- goto out;
- }
-
- gdm_debug ("Returning value for key <%s>\n", keystring);
-
- switch (type) {
- case GDM_CONFIG_VALUE_BOOL:
- {
- gboolean value;
- res = gdm_common_config_get_boolean (config, keystring, &value, NULL);
- if (res) {
- if (value) {
- result = g_strdup ("true");
- } else {
- result = g_strdup ("false");
- }
- }
- }
- break;
- case GDM_CONFIG_VALUE_INT:
- {
- int value;
- res = gdm_common_config_get_int (config, keystring, &value, NULL);
- if (res) {
- result = g_strdup_printf ("%d", value);
- }
- }
- break;
- case GDM_CONFIG_VALUE_STRING:
- {
- char *value;
- res = gdm_common_config_get_string (config, keystring, &value, NULL);
- if (res) {
- result = value;
- }
- }
- break;
- case GDM_CONFIG_VALUE_LOCALE_STRING:
- {
- char *value;
- res = gdm_common_config_get_string (config, keystring, &value, NULL);
- if (res) {
- result = value;
- }
- }
- break;
- default:
- break;
- }
-
- if (res) {
- if (retval != NULL) {
- *retval = g_strdup (result);
- }
- ret = TRUE;
- }
-
- g_key_file_free (config);
- out:
- g_free (result);
- g_free (group);
- g_free (key);
- g_free (locale);
-
- return ret;
-}
-
-/**
- * gdm_daemon_config_to_string
- *
- * Returns a configuration option as a string. Used by GDM's
- * GET_CONFIG socket command.
- */
-gboolean
-gdm_daemon_config_to_string (const char *keystring,
- const char *display,
- char **retval)
-{
- gboolean res;
- gboolean ret;
- GdmConfigValue *value;
- char *group;
- char *key;
- char *locale;
- char *result;
-
- /*
- * See if there is a per-display config file, returning that value
- * if it exists.
- */
- if (display != NULL) {
- res = gdm_daemon_config_key_to_string_per_display (keystring, display, retval);
- if (res) {
- g_debug ("Using per display value for key: %s", keystring);
- return TRUE;
- }
- }
-
- ret = FALSE;
- result = NULL;
-
- g_debug ("Looking up key: %s", keystring);
-
- group = NULL;
- key = NULL;
- locale = NULL;
- res = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- &locale,
- NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- goto out;
- }
-
- if (group == NULL || key == NULL) {
- gdm_error ("Request for invalid configuration key %s", keystring);
- goto out;
- }
-
- /* Backward Compatibility */
- if ((strcmp (group, "daemon") == 0) &&
- (strcmp (key, "PidFile") == 0)) {
- result = g_strdup (GDM_PID_FILE);
- goto out;
- } else if ((strcmp (group, "daemon") == 0) &&
- (strcmp (key, "AlwaysRestartServer") == 0)) {
- result = g_strdup ("true");
- }
-
- res = gdm_config_get_value (daemon_config,
- group,
- key,
- &value);
-
- if (! res) {
- gdm_error ("Request for invalid configuration key %s", keystring);
- goto out;
- }
-
- result = gdm_config_value_to_string (value);
- ret = TRUE;
-
- out:
- g_free (group);
- g_free (key);
- g_free (locale);
-
-
- *retval = result;
-
- return ret;
-}
-
-/**
- * gdm_daemon_config_compare_displays
- *
- * Support function for loading displays from the configuration
- * file
- */
-int
-gdm_daemon_config_compare_displays (gconstpointer a, gconstpointer b)
-{
- const GdmDisplay *d1 = a;
- const GdmDisplay *d2 = b;
- if (d1->dispnum < d2->dispnum)
- return -1;
- else if (d1->dispnum > d2->dispnum)
- return 1;
- else
- return 0;
-}
-
-static char *
-lookup_notify_key (GdmConfig *config,
- const char *group,
- const char *key)
-{
- char *nkey;
- char *keystring;
-
- keystring = g_strdup_printf ("%s/%s", group, key);
-
- /* pretty lame but oh well */
- nkey = NULL;
-
- /* bools */
- if (is_key (keystring, GDM_KEY_ALLOW_ROOT))
- nkey = g_strdup (GDM_NOTIFY_ALLOW_ROOT);
- else if (is_key (keystring, GDM_KEY_ALLOW_REMOTE_ROOT))
- nkey = g_strdup (GDM_NOTIFY_ALLOW_REMOTE_ROOT);
- else if (is_key (keystring, GDM_KEY_ALLOW_REMOTE_AUTOLOGIN))
- nkey = g_strdup (GDM_NOTIFY_ALLOW_REMOTE_AUTOLOGIN);
- else if (is_key (keystring, GDM_KEY_SYSTEM_MENU))
- nkey = g_strdup (GDM_NOTIFY_SYSTEM_MENU);
- else if (is_key (keystring, GDM_KEY_CONFIG_AVAILABLE))
- nkey = g_strdup (GDM_NOTIFY_CONFIG_AVAILABLE);
- else if (is_key (keystring, GDM_KEY_CHOOSER_BUTTON))
- nkey = g_strdup (GDM_NOTIFY_CHOOSER_BUTTON);
- else if (is_key (keystring, GDM_KEY_DISALLOW_TCP))
- nkey = g_strdup (GDM_NOTIFY_DISALLOW_TCP);
- else if (is_key (keystring, GDM_KEY_ADD_GTK_MODULES))
- nkey = g_strdup (GDM_NOTIFY_ADD_GTK_MODULES);
- else if (is_key (keystring, GDM_KEY_TIMED_LOGIN_ENABLE))
- nkey = g_strdup (GDM_NOTIFY_TIMED_LOGIN_ENABLE);
- /* ints */
- else if (is_key (keystring, GDM_KEY_RETRY_DELAY))
- nkey = g_strdup (GDM_NOTIFY_RETRY_DELAY);
- else if (is_key (keystring, GDM_KEY_TIMED_LOGIN_DELAY))
- nkey = g_strdup (GDM_NOTIFY_TIMED_LOGIN_DELAY);
- /* strings */
- else if (is_key (keystring, GDM_KEY_GREETER))
- nkey = g_strdup (GDM_NOTIFY_GREETER);
- else if (is_key (keystring, GDM_KEY_REMOTE_GREETER))
- nkey = g_strdup (GDM_NOTIFY_REMOTE_GREETER);
- else if (is_key (keystring, GDM_KEY_SOUND_ON_LOGIN_FILE))
- nkey = g_strdup (GDM_NOTIFY_SOUND_ON_LOGIN_FILE);
- else if (is_key (keystring, GDM_KEY_SOUND_ON_LOGIN_SUCCESS_FILE))
- nkey = g_strdup (GDM_NOTIFY_SOUND_ON_LOGIN_SUCCESS_FILE);
- else if (is_key (keystring, GDM_KEY_SOUND_ON_LOGIN_FAILURE_FILE))
- nkey = g_strdup (GDM_NOTIFY_SOUND_ON_LOGIN_FAILURE_FILE);
- else if (is_key (keystring, GDM_KEY_GTK_MODULES_LIST))
- nkey = g_strdup (GDM_NOTIFY_GTK_MODULES_LIST);
- else if (is_key (keystring, GDM_KEY_TIMED_LOGIN))
- nkey = g_strdup (GDM_NOTIFY_TIMED_LOGIN);
- else if (strcmp (group, GDM_CONFIG_GROUP_CUSTOM_CMD) == 0 &&
- g_str_has_prefix (key, "CustomCommand") &&
- strlen (key) == 14) {
- /* this should match 'CustomCommandN' */
- nkey = g_strdup (key);
- }
- g_free (keystring);
-
- return nkey;
-}
-
-/**
- * notify_displays_value
- *
- * This will notify the slave programs
- * (gdmgreeter, gdmlogin, etc.) that a configuration option has
- * been changed so the slave can update with the new option
- * value. GDM does this notify when it receives a
- * GDM_CONFIG_UPDATE socket command from gdmsetup or from the
- * gdmflexiserver --command option.
- */
-static void
-notify_displays_value (GdmConfig *config,
- const char *group,
- const char *key,
- GdmConfigValue *value)
-{
- GSList *li;
- char *valstr;
- char *keystr;
-
- keystr = lookup_notify_key (config, group, key);
-
- /* unfortunately, can't always gdm_config_value_to_string()
- * here because booleans need to be sent as ints
- */
- switch (value->type) {
- case GDM_CONFIG_VALUE_BOOL:
- if (gdm_config_value_get_bool (value)) {
- valstr = g_strdup ("1");
- } else {
- valstr = g_strdup ("0");
- }
- break;
- default:
- valstr = gdm_config_value_to_string (value);
- break;
- }
-
- if (valstr == NULL) {
- valstr = g_strdup (" ");
- }
-
- for (li = displays; li != NULL; li = li->next) {
- GdmDisplay *disp = li->data;
-
- if (disp->master_notify_fd < 0) {
- /* no point */
- continue;
- }
-
- gdm_fdprintf (disp->master_notify_fd,
- "%c%s %s\n",
- GDM_SLAVE_NOTIFY_KEY,
- keystr,
- valstr);
-
- if (disp != NULL && disp->slavepid > 1) {
- kill (disp->slavepid, SIGUSR2);
- }
- }
-
- g_free (keystr);
- g_free (valstr);
-}
-
-/* The following were used to internally set the
- * stored configuration values. Now we'll just
- * ask the GdmConfig to store the entry. */
-void
-gdm_daemon_config_set_value_string (const gchar *keystring,
- const gchar *value_in)
-{
- char *group;
- char *key;
- gboolean res;
- GdmConfigValue *value;
-
- res = gdm_common_config_parse_key_string (keystring, &group, &key, NULL, NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- return;
- }
-
- value = gdm_config_value_new (GDM_CONFIG_VALUE_STRING);
- gdm_config_value_set_string (value, value_in);
-
- res = gdm_config_set_value (daemon_config, group, key, value);
-
- gdm_config_value_free (value);
- g_free (group);
- g_free (key);
-}
-
-void
-gdm_daemon_config_set_value_bool (const gchar *keystring,
- gboolean value_in)
-{
- char *group;
- char *key;
- gboolean res;
- GdmConfigValue *value;
-
- res = gdm_common_config_parse_key_string (keystring, &group, &key, NULL, NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- return;
- }
-
- value = gdm_config_value_new (GDM_CONFIG_VALUE_BOOL);
- gdm_config_value_set_bool (value, value_in);
-
- res = gdm_config_set_value (daemon_config, group, key, value);
-
- gdm_config_value_free (value);
- g_free (group);
- g_free (key);
-}
-
-void
-gdm_daemon_config_set_value_int (const gchar *keystring,
- gint value_in)
-{
- char *group;
- char *key;
- gboolean res;
- GdmConfigValue *value;
-
- res = gdm_common_config_parse_key_string (keystring, &group, &key, NULL, NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- return;
- }
-
- value = gdm_config_value_new (GDM_CONFIG_VALUE_INT);
- gdm_config_value_set_int (value, value_in);
-
- res = gdm_config_set_value (daemon_config, group, key, value);
-
- gdm_config_value_free (value);
- g_free (group);
- g_free (key);
-}
-
-/**
- * gdm_daemon_config_find_xserver
- *
- * Return an xserver with a given ID, or NULL if not found.
- */
-GdmXserver *
-gdm_daemon_config_find_xserver (const gchar *id)
-{
- GSList *li;
-
- if (xservers == NULL)
- return NULL;
-
- if (id == NULL)
- return xservers->data;
-
- for (li = xservers; li != NULL; li = li->next) {
- GdmXserver *svr = li->data;
- if (strcmp (ve_sure_string (svr->id), ve_sure_string (id)) == 0)
- return svr;
- }
-
- return NULL;
-}
-
-/**
- * gdm_daemon_config_get_xservers
- *
- * Prepare a string to be returned for the GET_SERVER_LIST
- * sockets command.
- */
-gchar *
-gdm_daemon_config_get_xservers (void)
-{
- GSList *li;
- gchar *retval = NULL;
-
- if (xservers == NULL)
- return NULL;
-
- for (li = xservers; li != NULL; li = li->next) {
- GdmXserver *svr = li->data;
- if (retval != NULL)
- retval = g_strconcat (retval, ";", svr->id, NULL);
- else
- retval = g_strdup (svr->id);
- }
-
- return retval;
-}
-
-/* PRIO_MIN and PRIO_MAX are not defined on Solaris, but are -20 and 20 */
-#if sun
-#ifndef PRIO_MIN
-#define PRIO_MIN -20
-#endif
-#ifndef PRIO_MAX
-#define PRIO_MAX 20
-#endif
-#endif
-
-/**
- * gdm_daemon_config_load_xserver
- *
- * Load [server-foo] sections from a configuration file.
- */
-static void
-gdm_daemon_config_load_xserver (GdmConfig *config,
- const char *key,
- const char *name)
-{
- GdmXserver *svr;
- int n;
- char *group;
- gboolean res;
- GdmConfigValue *value;
-
- /* Do not add xserver if name doesn't exist */
- if (gdm_daemon_config_find_xserver (name) != NULL) {
- return;
- }
-
- svr = g_new0 (GdmXserver, 1);
- svr->id = g_strdup (name);
-
- group = g_strdup_printf ("server-%s", name);
-
- /* string */
- res = gdm_config_get_value (config, group, "name", &value);
- if (res) {
- svr->name = g_strdup (gdm_config_value_get_string (value));
- }
- res = gdm_config_get_value (config, group, "command", &value);
- if (res) {
- svr->command = g_strdup (gdm_config_value_get_string (value));
- }
-
- /* bool */
- res = gdm_config_get_value (config, group, "flexible", &value);
- if (res) {
- svr->flexible = gdm_config_value_get_bool (value);
- }
- res = gdm_config_get_value (config, group, "choosable", &value);
- if (res) {
- svr->choosable = gdm_config_value_get_bool (value);
- }
- res = gdm_config_get_value (config, group, "handled", &value);
- if (res) {
- svr->handled = gdm_config_value_get_bool (value);
- }
- res = gdm_config_get_value (config, group, "chooser", &value);
- if (res) {
- svr->chooser = gdm_config_value_get_bool (value);
- }
-
- /* int */
- res = gdm_config_get_value (config, group, "priority", &value);
- if (res) {
- svr->priority = gdm_config_value_get_int (value);
- }
-
- /* do some bounds checking */
- n = svr->priority;
- if (n < PRIO_MIN)
- n = PRIO_MIN;
- else if (n > PRIO_MAX)
- n = PRIO_MAX;
-
- if (n != svr->priority) {
- gdm_error (_("%s: Priority out of bounds; changed to %d"),
- "gdm_config_parse", n);
- svr->priority = n;
- }
-
- if (ve_string_empty (svr->command)) {
- gdm_error (_("%s: Empty server command; "
- "using standard command."), "gdm_config_parse");
- g_free (svr->command);
- svr->command = g_strdup (X_SERVER);
- }
-
- xservers = g_slist_append (xservers, svr);
-}
-
-static void
-gdm_daemon_config_unload_xservers (GdmConfig *config)
-{
- GSList *xli;
-
- /* Free list if already loaded */
- for (xli = xservers; xli != NULL; xli = xli->next) {
- GdmXserver *xsvr = xli->data;
-
- g_free (xsvr->id);
- g_free (xsvr->name);
- g_free (xsvr->command);
- }
-
- if (xservers != NULL) {
- g_slist_free (xservers);
- xservers = NULL;
- }
-}
-
-static void
-gdm_daemon_config_ensure_one_xserver (GdmConfig *config)
-{
- /* If no "Standard" server was created, then add it */
- if (xservers == NULL || gdm_daemon_config_find_xserver (GDM_STANDARD) == NULL) {
- GdmXserver *svr = g_new0 (GdmXserver, 1);
-
- svr->id = g_strdup (GDM_STANDARD);
- svr->name = g_strdup ("Standard server");
- svr->command = g_strdup (X_SERVER);
- svr->flexible = TRUE;
- svr->choosable = TRUE;
- svr->handled = TRUE;
- svr->priority = 0;
-
- xservers = g_slist_append (xservers, svr);
- }
-}
-
-static void
-load_xservers_group (GdmConfig *config)
-{
- char **keys;
- gsize len;
- int i;
-
- keys = gdm_config_get_keys_for_group (config,
- GDM_CONFIG_GROUP_SERVERS, &len, NULL);
-
- /* now construct entries for these groups */
- for (i = 0; i < len; i++) {
- GdmConfigEntry entry;
- GdmConfigValue *value;
- const char *display_value;
- const char *name;
- char **value_list;
- char *new_group;
- int j;
- gboolean res;
-
- entry.group = GDM_CONFIG_GROUP_SERVERS;
- entry.key = keys[i];
- entry.type = GDM_CONFIG_VALUE_STRING;
- entry.default_value = NULL;
- entry.id = GDM_CONFIG_INVALID_ID;
-
- gdm_config_add_entry (config, &entry);
- gdm_config_process_entry (config, &entry, NULL);
-
- res = gdm_config_get_value (config, entry.group, entry.key,
- &value);
- if (! res) {
- continue;
- }
-
- display_value = gdm_config_value_get_string (value);
- value_list = g_strsplit (display_value, " ", -1);
- if (value_list == NULL || value_list[0] == '\0') {
- gdm_config_value_free (value);
- g_strfreev (value_list);
- continue;
- }
-
- name = value_list[0];
-
- /* Skip servers marked as inactive */
- if (name == NULL || name[0] == '\0' ||
- g_ascii_strcasecmp (name, "inactive") == 0) {
- gdm_config_value_free (value);
- g_strfreev (value_list);
- continue;
- }
-
- new_group = g_strdup_printf ("server-%s", name);
- for (j = 0; j < G_N_ELEMENTS (gdm_daemon_server_config_entries); j++) {
- GdmConfigEntry *srv_entry;
- if (gdm_daemon_server_config_entries[j].key == NULL) {
- continue;
- }
- srv_entry = gdm_config_entry_copy (&gdm_daemon_server_config_entries[j]);
- g_free (srv_entry->group);
- srv_entry->group = g_strdup (new_group);
- gdm_config_process_entry (config, srv_entry, NULL);
- gdm_config_entry_free (srv_entry);
- }
- g_free (new_group);
-
- /* Now we can add this server */
- gdm_daemon_config_load_xserver (config, entry.key, name);
- gdm_config_value_free (value);
- g_strfreev (value_list);
- }
-}
-
-static void
-gdm_daemon_config_load_xservers (GdmConfig *config)
-{
- gdm_daemon_config_unload_xservers (config);
- load_xservers_group (config);
- gdm_daemon_config_ensure_one_xserver (config);
-}
-
-/**
- * gdm_daemon_config_update_key
- *
- * Will cause a the GDM daemon to re-read the key from the configuration
- * file and cause notify signal to be sent to the slaves for the
- * specified key, if appropriate.
- * Obviously notification is not needed for configuration options only
- * used by the daemon. This function is called when the UPDDATE_CONFIG
- * sockets command is called.
- *
- * To add a new notification, a GDM_NOTIFY_* argument will need to be
- * defined in gdm-daemon-config-keys.h, supporting logic placed in the
- * notify_cb function and in the gdm_slave_handle_notify function
- * in slave.c.
- */
-gboolean
-gdm_daemon_config_update_key (const char *keystring)
-{
- gboolean rc;
- gboolean res;
- char *group;
- char *key;
- char *locale;
- const GdmConfigEntry *entry;
-
- rc = FALSE;
- group = key = locale = NULL;
-
- /*
- * Do not allow these keys to be updated, since GDM would need
- * additional work, or at least heavy testing, to make these keys
- * flexible enough to be changed at runtime.
- */
- if (is_key (keystring, GDM_KEY_PID_FILE) ||
- is_key (keystring, GDM_KEY_CONSOLE_NOTIFY) ||
- is_key (keystring, GDM_KEY_USER) ||
- is_key (keystring, GDM_KEY_GROUP) ||
- is_key (keystring, GDM_KEY_LOG_DIR) ||
- is_key (keystring, GDM_KEY_SERV_AUTHDIR) ||
- is_key (keystring, GDM_KEY_USER_AUTHDIR) ||
- is_key (keystring, GDM_KEY_USER_AUTHFILE) ||
- is_key (keystring, GDM_KEY_USER_AUTHDIR_FALLBACK)) {
- return FALSE;
- }
-
- /* reload backend files if necessary */
- gdm_config_load (daemon_config, NULL);
-
- /* Shortcut for updating all XDMCP parameters */
- if (is_key (keystring, "xdmcp/PARAMETERS")) {
- rc = gdm_daemon_config_update_key (GDM_KEY_DISPLAYS_PER_HOST);
- if (rc == TRUE)
- rc = gdm_daemon_config_update_key (GDM_KEY_MAX_PENDING);
- if (rc == TRUE)
- rc = gdm_daemon_config_update_key (GDM_KEY_MAX_WAIT);
- if (rc == TRUE)
- rc = gdm_daemon_config_update_key (GDM_KEY_MAX_SESSIONS);
- if (rc == TRUE)
- rc = gdm_daemon_config_update_key (GDM_KEY_INDIRECT);
- if (rc == TRUE)
- rc = gdm_daemon_config_update_key (GDM_KEY_MAX_INDIRECT);
- if (rc == TRUE)
- rc = gdm_daemon_config_update_key (GDM_KEY_MAX_WAIT_INDIRECT);
- if (rc == TRUE)
- rc = gdm_daemon_config_update_key (GDM_KEY_PING_INTERVAL);
- goto out;
- }
-
- /* find the entry for the key */
- res = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- &locale,
- NULL);
- if (! res) {
- gdm_error ("Could not parse configuration key %s", keystring);
- goto out;
- }
-
- entry = gdm_config_lookup_entry (daemon_config, group, key);
- if (entry == NULL) {
- gdm_error ("Request for invalid configuration key %s", keystring);
- goto out;
- }
-
- rc = gdm_config_process_entry (daemon_config, entry, NULL);
-
- out:
- g_free (group);
- g_free (key);
- g_free (locale);
-
- return rc;
-}
-
-/**
- * check_logdir
- * check_servauthdir
- *
- * Support functions for gdm_config_parse.
- */
-static void
-check_logdir (void)
-{
- struct stat statbuf;
- int r;
- char *log_path;
- const char *auth_path;
- GdmConfigValue *value;
-
- log_path = NULL;
- auth_path = NULL;
-
- gdm_config_get_string_for_id (daemon_config, GDM_ID_LOG_DIR, &log_path);
-
- gdm_config_get_value_for_id (daemon_config, GDM_ID_SERV_AUTHDIR, &value);
- auth_path = gdm_config_value_get_string (value);
-
- VE_IGNORE_EINTR (r = g_stat (log_path, &statbuf));
- if (r < 0 || ! S_ISDIR (statbuf.st_mode)) {
- gdm_error (_("%s: Logdir %s does not exist or isn't a directory. Using ServAuthDir %s."),
- "gdm_config_parse",
- log_path,
- auth_path);
- gdm_config_set_value_for_id (daemon_config, GDM_ID_LOG_DIR, value);
- }
-
- g_free (log_path);
- gdm_config_value_free (value);
-}
-
-static void
-check_servauthdir (const char *auth_path,
- struct stat *statbuf)
-{
- int r;
- gboolean console_notify;
-
- console_notify = FALSE;
- gdm_config_get_bool_for_id (daemon_config, GDM_ID_CONSOLE_NOTIFY, &console_notify);
-
- /* Enter paranoia mode */
- VE_IGNORE_EINTR (r = g_stat (auth_path, statbuf));
- if G_UNLIKELY (r < 0) {
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("Server Authorization directory "
- "(daemon/ServAuthDir) is set to %s "
- "but this does not exist. Please "
- "correct GDM configuration and "
- "restart GDM.")),
- auth_path);
-
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: Authdir %s does not exist. Aborting."), "gdm_config_parse", auth_path);
- }
-
- if G_UNLIKELY (! S_ISDIR (statbuf->st_mode)) {
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("Server Authorization directory "
- "(daemon/ServAuthDir) is set to %s "
- "but this is not a directory. Please "
- "correct GDM configuration and "
- "restart GDM.")),
- auth_path);
-
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: Authdir %s is not a directory. Aborting."), "gdm_config_parse", auth_path);
- }
-}
-
-static gboolean
-have_display_for_number (int number)
-{
- GSList *l;
-
- for (l = displays; l != NULL; l = l->next) {
- GdmDisplay *disp = l->data;
- if (disp->dispnum == number) {
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-static void
-gdm_daemon_config_load_displays (GdmConfig *config)
-{
- char **keys;
- const char *display_value;
- gsize len;
- int i,j;
-
- keys = gdm_config_get_keys_for_group (config,
- GDM_CONFIG_GROUP_SERVERS, &len, NULL);
-
- /* now construct entries for these groups */
- for (i = 0; i < len; i++) {
- GString *command = NULL;
- GdmDisplay *disp;
- GdmConfigValue *value;
- const char *name = NULL;
- const char *device_name = NULL;
- char **value_list;
- int keynum;
- gboolean res;
-
- name = keys[i];
-
- if (!isdigit (*name)) {
- continue;
- }
-
- keynum = atoi (name);
-
- res = gdm_config_get_value (config, GDM_CONFIG_GROUP_SERVERS,
- keys[i], &value);
- if (! res) {
- continue;
- }
-
- display_value = gdm_config_value_get_string (value);
- value_list = g_strsplit (display_value, " ", -1);
-
- if (value_list == NULL || value_list[0] == '\0') {
- gdm_config_value_free (value);
- g_strfreev (value_list);
- continue;
- }
-
- command = g_string_new (NULL);
-
- /*
- * Allow an optional device to be passed in as an argument
- * with the format "device=/dev/foo".
- * In the future, if more per-display configuration is desired,
- * this can be made more sophisticated to handle additional
- * arguments.
- */
- j=0;
- while (value_list[j] != NULL) {
- if (strncmp (value_list[j], "device=",
- strlen ("device=")) == 0) {
- device_name = value_list[j] + strlen ("device=");
- } else {
- g_string_append (command, value_list[j]);
- g_string_append (command, " ");
- }
- j++;
- }
-
- gdm_debug ("Loading display for key '%d'", keynum);
-
- disp = gdm_display_alloc (keynum, command->str, device_name);
- g_string_free (command, TRUE);
- if (disp == NULL) {
- g_strfreev (value_list);
- continue;
- }
-
- displays = g_slist_insert_sorted (displays, disp,
- gdm_daemon_config_compare_displays);
- if (keynum > high_display_num) {
- high_display_num = keynum;
- }
-
- g_strfreev (value_list);
- }
-}
-
-static gboolean
-validate_path (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- char *str;
-
- /* If the /etc/default has a PATH use that */
- str = gdm_read_default ("PATH=");
- if (str != NULL) {
- gdm_config_value_set_string (value, str);
- g_free (str);
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_root_path (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- char *str;
-
- /* If the /etc/default has a PATH use that */
- str = gdm_read_default ("SUPATH=");
- if (str != NULL) {
- gdm_config_value_set_string (value, str);
- g_free (str);
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_base_xsession (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- const char *str;
-
- str = gdm_config_value_get_string (value);
- if (str == NULL || str[0] == '\0') {
- char *path;
- path = g_build_filename (GDMCONFDIR, "gdm", "Xsession", NULL);
- gdm_info (_("%s: BaseXsession empty; using %s"), "gdm_config_parse", path);
- gdm_config_value_set_string (value, path);
- g_free (path);
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_power_action (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- /* FIXME: should weed out the commands that don't work */
-
- return TRUE;
-}
-
-static gboolean
-validate_standard_xserver (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- gboolean res;
- gboolean is_ok;
- const char *str;
- char *new;
-
- is_ok = FALSE;
- new = NULL;
- str = gdm_config_value_get_string (value);
-
- if (str != NULL) {
- char **argv;
-
- if (g_shell_parse_argv (str, NULL, &argv, NULL)) {
- if (g_access (argv[0], X_OK) == 0) {
- is_ok = TRUE;
- }
- g_strfreev (argv);
- }
- }
-
- if G_UNLIKELY (! is_ok) {
- gdm_info (_("%s: Standard X server not found; trying alternatives"), "gdm_config_parse");
- if (g_access ("/usr/X11R6/bin/X", X_OK) == 0) {
- new = g_strdup ("/usr/X11R6/bin/X");
- } else if (g_access ("/opt/X11R6/bin/X", X_OK) == 0) {
- new = g_strdup ("/opt/X11R6/bin/X");
- } else if (g_access ("/usr/bin/X11/X", X_OK) == 0) {
- new = g_strdup ("/usr/bin/X11/X");
- }
- }
-
- if (new != NULL) {
- gdm_config_value_set_string (value, new);
- g_free (new);
- }
-
- res = TRUE;
-
- return res;
-}
-
-static gboolean
-validate_graphical_theme_dir (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- const char *str;
-
- str = gdm_config_value_get_string (value);
-
- if (str == NULL || !g_file_test (str, G_FILE_TEST_IS_DIR)) {
- gdm_config_value_set_string (value, GREETERTHEMEDIR);
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_graphical_theme (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- const char *str;
-
- str = gdm_config_value_get_string (value);
-
- if (str == NULL || str[0] == '\0') {
- gdm_config_value_set_string (value, "circles");
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_greeter (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- const char *str;
-
- str = gdm_config_value_get_string (value);
-
- if (str == NULL || str[0] == '\0') {
- gdm_error (_("%s: No greeter specified."), "gdm_config_parse");
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_remote_greeter (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- const char *str;
-
- str = gdm_config_value_get_string (value);
-
- if (str == NULL || str[0] == '\0') {
- gdm_error (_("%s: No remote greeter specified."), "gdm_config_parse");
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_session_desktop_dir (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- const char *str;
-
- str = gdm_config_value_get_string (value);
-
- if (str == NULL || str[0] == '\0') {
- gdm_error (_("%s: No sessions directory specified."), "gdm_config_parse");
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_password_required (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- char *str;
-
- str = gdm_read_default ("PASSREQ=");
- if (str != NULL && str[0] == '\0') {
- gboolean val;
- val = (g_ascii_strcasecmp (str, "YES") == 0);
- gdm_config_value_set_bool (value, val);
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_allow_remote_root (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
- char *str;
-
- str = gdm_read_default ("CONSOLE=");
- if (str != NULL && str[0] == '\0') {
- gboolean val;
- val = (g_ascii_strcasecmp (str, "/dev/console") != 0);
- gdm_config_value_set_bool (value, val);
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_xdmcp (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value)
-{
-
-#ifndef HAVE_LIBXDMCP
- if (gdm_config_value_get_bool (value)) {
- gdm_info (_("%s: XDMCP was enabled while there is no XDMCP support; turning it off"), "gdm_config_parse");
- gdm_config_value_set_bool (value, FALSE);
- }
-#endif
-
- return TRUE;
-}
-
-static gboolean
-validate_at_least_int (GdmConfig *config,
- GdmConfigSourceType source,
- GdmConfigValue *value,
- int minval,
- int defval)
-{
- if (gdm_config_value_get_int (value) < minval) {
- gdm_config_value_set_int (value, defval);
- }
-
- return TRUE;
-}
-
-static gboolean
-validate_cb (GdmConfig *config,
- GdmConfigSourceType source,
- const char *group,
- const char *key,
- GdmConfigValue *value,
- int id,
- gpointer data)
-{
- gboolean res;
-
- res = TRUE;
-
- switch (id) {
- case GDM_ID_PATH:
- res = validate_path (config, source, value);
- break;
- case GDM_ID_ROOT_PATH:
- res = validate_root_path (config, source, value);
- break;
- case GDM_ID_BASE_XSESSION:
- res = validate_base_xsession (config, source, value);
- break;
- case GDM_ID_HALT:
- case GDM_ID_REBOOT:
- case GDM_ID_SUSPEND:
- res = validate_power_action (config, source, value);
- break;
- case GDM_ID_STANDARD_XSERVER:
- res = validate_standard_xserver (config, source, value);
- break;
- case GDM_ID_GRAPHICAL_THEME_DIR:
- res = validate_graphical_theme_dir (config, source, value);
- break;
- case GDM_ID_GRAPHICAL_THEME:
- res = validate_graphical_theme (config, source, value);
- break;
- case GDM_ID_GREETER:
- res = validate_greeter (config, source, value);
- break;
- case GDM_ID_REMOTE_GREETER:
- res = validate_remote_greeter (config, source, value);
- break;
- case GDM_ID_SESSION_DESKTOP_DIR:
- res = validate_session_desktop_dir (config, source, value);
- break;
- case GDM_ID_PASSWORD_REQUIRED:
- res = validate_password_required (config, source, value);
- break;
- case GDM_ID_ALLOW_REMOTE_ROOT:
- res = validate_allow_remote_root (config, source, value);
- break;
- case GDM_ID_XDMCP:
- res = validate_xdmcp (config, source, value);
- break;
- case GDM_ID_MAX_INDIRECT:
- case GDM_ID_XINERAMA_SCREEN:
- res = validate_at_least_int (config, source, value, 0, 0);
- break;
- case GDM_ID_TIMED_LOGIN_DELAY:
- res = validate_at_least_int (config, source, value, 5, 5);
- break;
- case GDM_ID_MAX_ICON_WIDTH:
- case GDM_ID_MAX_ICON_HEIGHT:
- res = validate_at_least_int (config, source, value, 0, 128);
- break;
- case GDM_ID_SCAN_TIME:
- res = validate_at_least_int (config, source, value, 1, 1);
- break;
- case GDM_ID_NONE:
- case GDM_CONFIG_INVALID_ID:
- break;
- default:
- break;
- }
-
- return res;
-}
-
-static const char *
-source_to_name (GdmConfigSourceType source)
-{
- const char *name;
-
- switch (source) {
- case GDM_CONFIG_SOURCE_DEFAULT:
- name = "default";
- break;
- case GDM_CONFIG_SOURCE_MANDATORY:
- name = "mandatory";
- break;
- case GDM_CONFIG_SOURCE_CUSTOM:
- name = "custom";
- break;
- case GDM_CONFIG_SOURCE_BUILT_IN:
- name = "built-in";
- break;
- case GDM_CONFIG_SOURCE_RUNTIME_USER:
- name = "runtime-user";
- break;
- case GDM_CONFIG_SOURCE_INVALID:
- name = "Invalid";
- break;
- default:
- name = "Unknown";
- break;
- }
-
- return name;
-}
-
-static gboolean
-notify_cb (GdmConfig *config,
- GdmConfigSourceType source,
- const char *group,
- const char *key,
- GdmConfigValue *value,
- int id,
- gpointer data)
-{
- char *valstr;
-
- switch (id) {
- case GDM_ID_GREETER:
- case GDM_ID_REMOTE_GREETER:
- case GDM_ID_SOUND_ON_LOGIN_FILE:
- case GDM_ID_SOUND_ON_LOGIN_SUCCESS_FILE:
- case GDM_ID_SOUND_ON_LOGIN_FAILURE_FILE:
- case GDM_ID_GTK_MODULES_LIST:
- case GDM_ID_TIMED_LOGIN:
- case GDM_ID_ALLOW_ROOT:
- case GDM_ID_ALLOW_REMOTE_ROOT:
- case GDM_ID_ALLOW_REMOTE_AUTOLOGIN:
- case GDM_ID_SYSTEM_MENU:
- case GDM_ID_CONFIG_AVAILABLE:
- case GDM_ID_CHOOSER_BUTTON:
- case GDM_ID_DISALLOW_TCP:
- case GDM_ID_ADD_GTK_MODULES:
- case GDM_ID_TIMED_LOGIN_ENABLE:
- case GDM_ID_RETRY_DELAY:
- case GDM_ID_TIMED_LOGIN_DELAY:
- notify_displays_value (config, group, key, value);
- break;
- case GDM_ID_NONE:
- case GDM_CONFIG_INVALID_ID:
- {
- /* doesn't have an ID : match group/key */
- if (group != NULL) {
- if (strcmp (group, GDM_CONFIG_GROUP_SERVERS) == 0) {
- /* FIXME: handle this? */
- } else if (strcmp (group, GDM_CONFIG_GROUP_CUSTOM_CMD) == 0) {
- notify_displays_value (config, group, key, value);
- }
- }
- }
- break;
- default:
- break;
- }
-
- valstr = gdm_config_value_to_string (value);
- gdm_debug ("Got config %s/%s=%s <%s>\n",
- group,
- key,
- valstr,
- source_to_name (source));
- g_free (valstr);
-
- return TRUE;
-}
-
-static void
-handle_no_displays (GdmConfig *config,
- gboolean no_console)
-{
- const char *server;
- gboolean console_notify;
-
- console_notify = FALSE;
- gdm_config_get_bool_for_id (daemon_config, GDM_ID_CONSOLE_NOTIFY, &console_notify);
-
- /*
- * If we requested no static servers (there is no console),
- * then don't display errors in console messages
- */
- if (no_console) {
- gdm_fail (_("%s: XDMCP disabled and no static servers defined. Aborting!"), "gdm_config_parse");
- }
-
- server = X_SERVER;
- if G_LIKELY (g_access (server, X_OK) == 0) {
- } else if (g_access ("/usr/bin/X11/X", X_OK) == 0) {
- server = "/usr/bin/X11/X";
- } else if (g_access ("/usr/X11R6/bin/X", X_OK) == 0) {
- server = "/usr/X11R6/bin/X";
- } else if (g_access ("/opt/X11R6/bin/X", X_OK) == 0) {
- server = "/opt/X11R6/bin/X";
- }
-
- /* yay, we can add a backup emergency server */
- if (server != NULL) {
- GdmDisplay *d;
-
- int num = gdm_get_free_display (0 /* start */, 0 /* server uid */);
-
- gdm_error (_("%s: XDMCP disabled and no static servers defined. Adding %s on :%d to allow configuration!"),
- "gdm_config_parse", server, num);
-
- d = gdm_display_alloc (num, server, NULL);
- d->is_emergency_server = TRUE;
-
- displays = g_slist_append (displays, d);
-
- /* ALWAYS run the greeter and don't log anyone in,
- * this is just an emergency session */
- gdm_config_set_string_for_id (daemon_config, GDM_ID_AUTOMATIC_LOGIN, NULL);
- gdm_config_set_string_for_id (daemon_config, GDM_ID_TIMED_LOGIN, NULL);
-
- } else {
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("XDMCP is disabled and GDM "
- "cannot find any static server "
- "to start. Aborting! Please "
- "correct the configuration "
- "and restart GDM.")));
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: XDMCP disabled and no static servers defined. Aborting!"), "gdm_config_parse");
- }
-}
-
-static void
-gdm_daemon_change_user (GdmConfig *config,
- uid_t *uidp,
- gid_t *gidp)
-{
- gboolean console_notify;
- char *username;
- char *groupname;
- uid_t uid;
- gid_t gid;
- struct passwd *pwent;
- struct group *grent;
-
- console_notify = FALSE;
- username = NULL;
- groupname = NULL;
- uid = 0;
- gid = 0;
-
- gdm_config_get_bool_for_id (daemon_config, GDM_ID_CONSOLE_NOTIFY, &console_notify);
- gdm_config_get_string_for_id (daemon_config, GDM_ID_USER, &username);
- gdm_config_get_string_for_id (daemon_config, GDM_ID_GROUP, &groupname);
-
- /* Lookup user and groupid for the GDM user */
- pwent = getpwnam (username);
-
- /* Set uid and gid */
- if G_UNLIKELY (pwent == NULL) {
-
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("The GDM user '%s' does not exist. "
- "Please correct GDM configuration "
- "and restart GDM.")),
- username);
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: Can't find the GDM user '%s'. Aborting!"), "gdm_config_parse", username);
- } else {
- uid = pwent->pw_uid;
- }
-
- if G_UNLIKELY (uid == 0) {
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("The GDM user is set to be root, but "
- "this is not allowed since it can "
- "pose a security risk. Please "
- "correct GDM configuration and "
- "restart GDM.")));
-
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: The GDM user should not be root. Aborting!"), "gdm_config_parse");
- }
-
- grent = getgrnam (groupname);
-
- if G_UNLIKELY (grent == NULL) {
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("The GDM group '%s' does not exist. "
- "Please correct GDM configuration "
- "and restart GDM.")),
- groupname);
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: Can't find the GDM group '%s'. Aborting!"), "gdm_config_parse", groupname);
- } else {
- gid = grent->gr_gid;
- }
-
- if G_UNLIKELY (gid == 0) {
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("The GDM group is set to be root, but "
- "this is not allowed since it can "
- "pose a security risk. Please "
- "correct GDM configuration and "
- "restart GDM.")));
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: The GDM group should not be root. Aborting!"), "gdm_config_parse");
- }
-
- /* gid remains `gdm' */
- NEVER_FAILS_root_set_euid_egid (uid, gid);
-
- if (uidp != NULL) {
- *uidp = uid;
- }
-
- if (gidp != NULL) {
- *gidp = gid;
- }
-
- g_free (username);
- g_free (groupname);
-}
-
-static void
-gdm_daemon_check_permissions (GdmConfig *config,
- uid_t uid,
- gid_t gid)
-{
- struct stat statbuf;
- char *auth_path;
- gboolean console_notify;
-
- console_notify = FALSE;
- gdm_config_get_bool_for_id (daemon_config, GDM_ID_CONSOLE_NOTIFY, &console_notify);
- auth_path = NULL;
- gdm_config_get_string_for_id (config, GDM_ID_SERV_AUTHDIR, &auth_path);
-
- /* Enter paranoia mode */
- check_servauthdir (auth_path, &statbuf);
-
- NEVER_FAILS_root_set_euid_egid (0, 0);
-
- /* Now set things up for us as */
- chown (auth_path, 0, gid);
- g_chmod (auth_path, (S_IRWXU|S_IRWXG|S_ISVTX));
-
- NEVER_FAILS_root_set_euid_egid (uid, gid);
-
- /* Again paranoid */
- check_servauthdir (auth_path, &statbuf);
-
- if G_UNLIKELY (statbuf.st_uid != 0 || statbuf.st_gid != gid) {
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("Server Authorization directory "
- "(daemon/ServAuthDir) is set to %s "
- "but is not owned by user %d and group "
- "%d. Please correct the ownership or "
- "GDM configuration and restart "
- "GDM.")),
- auth_path,
- (int)uid,
- (int)gid);
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: Authdir %s is not owned by user %d, group %d. Aborting."),
- "gdm_config_parse",
- auth_path,
- (int)uid,
- (int)gid);
- }
-
- if G_UNLIKELY (statbuf.st_mode != (S_IFDIR|S_IRWXU|S_IRWXG|S_ISVTX)) {
- if (console_notify) {
- gchar *s = g_strdup_printf (C_(N_("Server Authorization directory "
- "(daemon/ServAuthDir) is set to %s "
- "but has the wrong permissions: it "
- "should have permissions of %o. "
- "Please correct the permissions or "
- "the GDM configuration and "
- "restart GDM.")),
- auth_path,
- (S_IRWXU|S_IRWXG|S_ISVTX));
- gdm_text_message_dialog (s);
- g_free (s);
- }
-
- gdm_fail (_("%s: Authdir %s has wrong permissions %o. Should be %o. Aborting."),
- "gdm_config_parse",
- auth_path,
- statbuf.st_mode,
- (S_IRWXU|S_IRWXG|S_ISVTX));
- }
-
- g_free (auth_path);
-}
-
-/**
- * gdm_daemon_config_parse
- *
- * Loads initial configuration settings.
- */
-void
-gdm_daemon_config_parse (const char *config_file,
- gboolean no_console)
-{
- uid_t uid;
- gid_t gid;
- GError *error;
- gboolean xdmcp_enabled;
- gboolean dynamic_enabled;
-
- displays = NULL;
- high_display_num = 0;
-
- /* Not NULL if config_file was set by command-line option. */
- if (config_file == NULL) {
- config_file = GDM_DEFAULTS_CONF;
- }
- custom_config_file = g_strdup (GDM_CUSTOM_CONF);
-
- daemon_config = gdm_config_new ();
-
- gdm_config_set_notify_func (daemon_config, notify_cb, NULL);
- gdm_config_set_validate_func (daemon_config, validate_cb, NULL);
-
- gdm_config_add_static_entries (daemon_config, gdm_daemon_config_entries);
-
- gdm_config_set_default_file (daemon_config, config_file);
- gdm_config_set_custom_file (daemon_config, custom_config_file);
-
- /* load the data files */
- error = NULL;
- gdm_config_load (daemon_config, &error);
- if (error != NULL) {
- gdm_error ("Unable to load configuration: %s", error->message);
- g_error_free (error);
- }
-
- /* populate the database with all specified entries */
- gdm_config_process_all (daemon_config, &error);
-
- gdm_daemon_config_load_xservers (daemon_config);
-
- /* Only read the list if no_console is FALSE at this stage */
- if (! no_console) {
- gdm_daemon_config_load_displays (daemon_config);
- }
-
- xdmcp_enabled = FALSE;
- gdm_config_get_bool_for_id (daemon_config, GDM_ID_XDMCP, &xdmcp_enabled);
- dynamic_enabled = FALSE;
- gdm_config_get_bool_for_id (daemon_config, GDM_ID_DYNAMIC_XSERVERS, &dynamic_enabled);
- if G_UNLIKELY ((displays == NULL) && (! xdmcp_enabled) && (! dynamic_enabled)) {
- handle_no_displays (daemon_config, no_console);
- }
-
- /* If no displays were found, then obviously
- we're in a no console mode */
- if (displays == NULL) {
- no_console = TRUE;
- }
-
- if (no_console) {
- gdm_config_set_bool_for_id (daemon_config, GDM_ID_CONSOLE_NOTIFY, FALSE);
- }
-
- gdm_daemon_change_user (daemon_config, &uid, &gid);
-
- gdm_daemon_check_permissions (daemon_config, uid, gid);
-
- NEVER_FAILS_root_set_euid_egid (0, 0);
-
- check_logdir ();
-
- GdmUserId = uid;
- GdmGroupId = gid;
-}
-
-/**
- * gdm_daemon_config_get_gdmuid
- * gdm_daemon_config_get_gdmgid
- *
- * Access functions for getting the GDM user ID and group ID.
- */
-uid_t
-gdm_daemon_config_get_gdmuid (void)
-{
- return GdmUserId;
-}
-
-gid_t
-gdm_daemon_config_get_gdmgid (void)
-{
- return GdmGroupId;
-}
-
-/**
- * gdm_daemon_config_get_high_display_num
- * gdm_daemon_config_get_high_display_num
- *
- * Access functions for getting the high display number.
- */
-gint
-gdm_daemon_config_get_high_display_num (void)
-{
- return high_display_num;
-}
-
-void
-gdm_daemon_config_set_high_display_num (gint val)
-{
- high_display_num = val;
-}
-
-/**
- * gdm_is_valid_key
- *
- * Returns TRUE if the key is a valid key, FALSE otherwise.
- */
-gboolean
-gdm_daemon_config_is_valid_key (const char *keystring)
-{
- char *group;
- char *key;
- gboolean ret;
- const GdmConfigEntry *entry;
-
- ret = gdm_common_config_parse_key_string (keystring,
- &group,
- &key,
- NULL,
- NULL);
- if (! ret) {
- goto out;
- }
-
-
- entry = gdm_config_lookup_entry (daemon_config, group, key);
- ret = (entry != NULL);
-
- g_free (group);
- g_free (key);
- out:
- return ret;
-}
-
-/**
- * gdm_signal_terminthup_was_notified
- *
- * returns TRUE if signal SIGTERM, SIGINT, or SIGHUP was received.
- * This just hides these vicious-extensions functions from the
- * other files
- */
-gboolean
-gdm_daemon_config_signal_terminthup_was_notified (void)
-{
- if (ve_signal_was_notified (SIGTERM) ||
- ve_signal_was_notified (SIGINT) ||
- ve_signal_was_notified (SIGHUP)) {
- return TRUE;
- } else {
- return FALSE;
- }
-}
-
-/**
- * check_user_file
- * check_global_file
- * is_in_trusted_pic_dir
- * get_facefile_from_gnome2_dir_config
- * path_is_local
- * gdm_daemon_config_get_facefile_from_home
- * gdm_daemon_config_get_facefile_from_global
- *
- * These functions are used for accessing the user's face image from their
- * home directory.
- */
-static gboolean
-check_user_file (const char *path,
- guint uid)
-{
- char *dir;
- char *file;
- gboolean is_ok;
-
- if (path == NULL)
- return FALSE;
-
- if (g_access (path, R_OK) != 0)
- return FALSE;
-
- dir = g_path_get_dirname (path);
- file = g_path_get_basename (path);
-
- is_ok = gdm_file_check ("run_pictures",
- uid,
- dir,
- file,
- TRUE, TRUE,
- gdm_daemon_config_get_value_int (GDM_KEY_USER_MAX_FILE),
- gdm_daemon_config_get_value_int (GDM_KEY_RELAX_PERM));
- g_free (dir);
- g_free (file);
-
- return is_ok;
-}
-
-static gboolean
-check_global_file (const char *path,
- guint uid)
-{
- if (path == NULL)
- return FALSE;
-
- if (g_access (path, R_OK) != 0)
- return FALSE;
-
- return TRUE;
-}
-
-/* If path starts with a "trusted" directory, don't sanity check things */
-/* This is really somewhat "outdated" as we now really want things in
- * the picture dir or in ~/.gnome2/photo */
-static gboolean
-is_in_trusted_pic_dir (const char *path)
-{
- /* our own pixmap dir is trusted */
- if (strncmp (path, PIXMAPDIR, sizeof (PIXMAPDIR)) == 0)
- return TRUE;
-
- return FALSE;
-}
-
-static gchar *
-get_facefile_from_gnome2_dir_config (const char *homedir,
- guint uid)
-{
- char *picfile = NULL;
- char *cfgdir;
-
- /* Sanity check on ~user/.gnome2/gdm */
- cfgdir = g_build_filename (homedir, ".gnome2", "gdm", NULL);
- if (G_LIKELY (check_user_file (cfgdir, uid))) {
- GKeyFile *cfg;
- char *cfgfile;
-
- cfgfile = g_build_filename (homedir, ".gnome2", "gdm", NULL);
- cfg = gdm_common_config_load (cfgfile, NULL);
- g_free (cfgfile);
-
- if (cfg != NULL) {
- gdm_common_config_get_string (cfg, "face/picture=", &picfile, NULL);
- g_key_file_free (cfg);
- }
-
- /* must exist and be absolute (note that this check
- * catches empty strings)*/
- /* Note that these days we just set ~/.face */
- if G_UNLIKELY (picfile != NULL &&
- (picfile[0] != '/' ||
- /* this catches readability by user */
- g_access (picfile, R_OK) != 0)) {
- g_free (picfile);
- picfile = NULL;
- }
-
- if (picfile != NULL) {
- char buf[PATH_MAX];
- if (realpath (picfile, buf) == NULL) {
- g_free (picfile);
- picfile = NULL;
- } else {
- g_free (picfile);
- picfile = g_strdup (buf);
- }
- }
-
- if G_UNLIKELY (picfile != NULL) {
- if (! is_in_trusted_pic_dir (picfile)) {
- /* if not in trusted dir, check it out */
-
- /* Note that strict permissions checking is done
- * on this file. Even if it may not even be owned by the
- * user. This setting should ONLY point to pics in trusted
- * dirs. */
- if (! check_user_file (picfile, uid)) {
- g_free (picfile);
- picfile = NULL;
- }
- }
- }
- }
- g_free (cfgdir);
-
- return picfile;
-}
-
-static GHashTable *fstype_hash = NULL;
-extern char *filesystem_type (char *path, char *relpath, struct stat *statp);
-
-static gboolean
-path_is_local (const char *path)
-{
- gpointer local = NULL;
-
- if (path == NULL)
- return FALSE;
-
- if (fstype_hash == NULL)
- fstype_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
- else
- local = g_hash_table_lookup (fstype_hash, path);
-
- if (local == NULL) {
- struct stat statbuf;
-
- if (g_stat (path, &statbuf) == 0) {
- char *type = filesystem_type ((char *)path, (char *)path, &statbuf);
- gboolean is_local = ((strcmp (ve_sure_string (type), "nfs") != 0) &&
- (strcmp (ve_sure_string (type), "afs") != 0) &&
- (strcmp (ve_sure_string (type), "autofs") != 0) &&
- (strcmp (ve_sure_string (type), "unknown") != 0) &&
- (strcmp (ve_sure_string (type), "ncpfs") != 0));
- local = GINT_TO_POINTER (is_local ? 1 : -1);
- g_hash_table_insert (fstype_hash, g_strdup (path), local);
- }
- }
-
- return GPOINTER_TO_INT (local) > 0;
-}
-
-gchar *
-gdm_daemon_config_get_facefile_from_home (const char *homedir,
- guint uid)
-{
- char *picfile = NULL;
- char *path;
- gboolean is_local;
-
- /* special case: look at parent of home to detect autofs
- this is so we don't try to trigger an automount */
- path = g_path_get_dirname (homedir);
- is_local = path_is_local (path);
- g_free (path);
-
- /* now check that home dir itself is local */
- if (is_local) {
- is_local = path_is_local (homedir);
- }
-
- /* Only look at local home directories so we don't try to
- read from remote (e.g. NFS) volumes */
- if (! is_local)
- return NULL;
-
- picfile = g_build_filename (homedir, ".face", NULL);
-
- if (check_user_file (picfile, uid))
- return picfile;
- else {
- g_free (picfile);
- picfile = NULL;
- }
-
- picfile = g_build_filename (homedir, ".face.icon", NULL);
-
- if (check_user_file (picfile, uid))
- return picfile;
- else {
- g_free (picfile);
- picfile = NULL;
- }
-
- picfile = get_facefile_from_gnome2_dir_config (homedir, uid);
- if (check_user_file (picfile, uid))
- return picfile;
- else {
- g_free (picfile);
- picfile = NULL;
- }
-
- /* Nothing found yet, try the old locations */
-
- picfile = g_build_filename (homedir, ".gnome2", "photo", NULL);
- if (check_user_file (picfile, uid))
- return picfile;
- else {
- g_free (picfile);
- picfile = NULL;
- }
-
- picfile = g_build_filename (homedir, ".gnome", "photo", NULL);
- if (check_user_file (picfile, uid))
- return picfile;
- else {
- g_free (picfile);
- picfile = NULL;
- }
-
- return NULL;
-}
-
-gchar *
-gdm_daemon_config_get_facefile_from_global (const char *username,
- guint uid)
-{
- char *picfile = NULL;
- const char *facedir;
-
- facedir = gdm_daemon_config_get_value_string (GDM_KEY_GLOBAL_FACE_DIR);
-
- /* Try the global face directory */
-
- picfile = g_build_filename (facedir, username, NULL);
-
- if (check_global_file (picfile, uid))
- return picfile;
-
- g_free (picfile);
- picfile = gdm_make_filename (facedir, username, ".png");
-
- if (check_global_file (picfile, uid))
- return picfile;
-
- g_free (picfile);
- return NULL;
-}
-
-static gboolean
-is_prog_in_path (const char *prog)
-{
- char *f;
- gboolean ret;
-
- f = g_find_program_in_path (prog);
- ret = (f != NULL);
- g_free (f);
- return ret;
-}
-
-/**
- * gdm_daemon_config_get_session_exec
- *
- * This function accesses the GDM session desktop file and returns
- * the execution command for starting the session.
- *
- * Must be called with the PATH set correctly to find session exec.
- */
-char *
-gdm_daemon_config_get_session_exec (const char *session_name,
- gboolean check_try_exec)
-{
- char *session_filename;
- const char *path_str;
- char **search_dirs;
- GKeyFile *cfg;
- static char *exec;
- static char *cached = NULL;
- gboolean hidden;
- char *ret;
-
- cfg = NULL;
-
- /* clear cache */
- if (session_name == NULL) {
- g_free (exec);
- exec = NULL;
- g_free (cached);
- cached = NULL;
- return NULL;
- }
-
- if (cached != NULL && strcmp (ve_sure_string (session_name), ve_sure_string (cached)) == 0)
- return g_strdup (exec);
-
- g_free (exec);
- exec = NULL;
- g_free (cached);
- cached = g_strdup (session_name);
-
- /* Some ugly special casing for legacy "Default.desktop", oh well,
- * we changed to "default.desktop" */
- if (g_ascii_strcasecmp (session_name, "default") == 0 ||
- g_ascii_strcasecmp (session_name, "default.desktop") == 0) {
- session_filename = g_strdup ("default.desktop");
- } else {
- session_filename = gdm_ensure_extension (session_name, ".desktop");
- }
-
- path_str = gdm_daemon_config_get_value_string (GDM_KEY_SESSION_DESKTOP_DIR);
- if (path_str == NULL) {
- gdm_error ("No session desktop directories defined");
- goto out;
- }
-
- search_dirs = g_strsplit (path_str, ":", -1);
-
- cfg = gdm_common_config_load_from_dirs (session_filename,
- (const char **)search_dirs,
- NULL);
- g_strfreev (search_dirs);
-
- if (cfg == NULL) {
- if (gdm_is_session_magic (session_name)) {
- exec = g_strdup (session_name);
- } else {
- g_free (exec);
- exec = NULL;
- }
- goto out;
- }
-
- hidden = FALSE;
- gdm_common_config_get_boolean (cfg, "Desktop Entry/Hidden=false", &hidden, NULL);
- if (hidden) {
- g_free (exec);
- exec = NULL;
- goto out;
- }
-
- if (check_try_exec) {
- char *tryexec;
-
- tryexec = NULL;
- gdm_common_config_get_string (cfg, "Desktop Entry/TryExec", &tryexec, NULL);
-
- if (tryexec != NULL &&
- tryexec[0] != '\0' &&
- ! is_prog_in_path (tryexec)) {
- g_free (tryexec);
- g_free (exec);
- exec = NULL;
- goto out;
- }
- g_free (tryexec);
- }
-
- exec = NULL;
- gdm_common_config_get_string (cfg, "Desktop Entry/Exec", &exec, NULL);
-
- out:
-
- ret = g_strdup (exec);
-
- g_key_file_free (cfg);
-
- return ret;
-}
-
-/**
- * gdm_daemon_config_get_session_xserver_args
- *
- * This function accesses the GDM session desktop file and returns
- * additional Xserver arguments to be used with this session
- */
-char *
-gdm_daemon_config_get_session_xserver_args (const char *session_name)
-{
- char *session_filename;
- const char *path_str;
- char **search_dirs;
- GKeyFile *cfg;
- static char *xserver_args;
- static char *cached = NULL;
- char *ret;
-
- cfg = NULL;
-
- /* clear cache */
- if (session_name == NULL) {
- g_free (xserver_args);
- xserver_args = NULL;
- g_free (cached);
- cached = NULL;
- return NULL;
- }
-
- if (cached != NULL && strcmp (ve_sure_string (session_name), ve_sure_string (cached)) == 0)
- return g_strdup (xserver_args);
-
- g_free (xserver_args);
- xserver_args = NULL;
- g_free (cached);
- cached = g_strdup (session_name);
-
- /* Some ugly special casing for legacy "Default.desktop", oh well,
- * we changed to "default.desktop" */
- if (g_ascii_strcasecmp (session_name, "default") == 0 ||
- g_ascii_strcasecmp (session_name, "default.desktop") == 0) {
- session_filename = g_strdup ("default.desktop");
- } else {
- session_filename = gdm_ensure_extension (session_name, ".desktop");
- }
-
- path_str = gdm_daemon_config_get_value_string (GDM_KEY_SESSION_DESKTOP_DIR);
- if (path_str == NULL) {
- gdm_error ("No session desktop directories defined");
- goto out;
- }
-
- search_dirs = g_strsplit (path_str, ":", -1);
-
- cfg = gdm_common_config_load_from_dirs (session_filename,
- (const char **)search_dirs,
- NULL);
- g_strfreev (search_dirs);
-
- xserver_args = NULL;
- gdm_common_config_get_string (cfg, "Desktop Entry/X-Gdm-XserverArgs", &xserver_args, NULL);
-
- out:
-
- ret = g_strdup (xserver_args);
-
- g_key_file_free (cfg);
-
- return ret;
-}
-
-/**
- * gdm_daemon_config_get_user_session_lang
- *
- * These functions get and set the user's language and setting in their
- * $HOME/.dmrc file.
- */
-void
-gdm_daemon_config_set_user_session_lang (gboolean savesess,
- gboolean savelang,
- const char *home_dir,
- const char *save_session,
- const char *save_language)
-{
- GKeyFile *dmrc;
- gchar *cfgstr;
-
- cfgstr = g_build_filename (home_dir, ".dmrc", NULL);
- dmrc = gdm_common_config_load (cfgstr, NULL);
- if (dmrc == NULL) {
- gint fd = -1;
- gdm_debug ("file: %s does not exist - creating it", cfgstr);
- VE_IGNORE_EINTR (fd = g_open (cfgstr,
- O_CREAT | O_TRUNC | O_RDWR, 0644));
-
- if (fd < 0)
- return;
-
- write (fd, "\n", 2);
- close (fd);
- dmrc = gdm_common_config_load (cfgstr, NULL);
- if (dmrc == NULL) {
- gdm_debug ("failed to open %s after creating it",
- cfgstr);
- return;
- }
- }
-
- if (savesess) {
- g_key_file_set_string (dmrc, "Desktop", "Session", ve_sure_string (save_session));
- }
-
- if (savelang) {
- if (ve_string_empty (save_language)) {
- /* we chose the system default language so wipe the
- * lang key */
- g_key_file_remove_key (dmrc, "Desktop", "Language", NULL);
- } else {
- g_key_file_set_string (dmrc, "Desktop", "Language", save_language);
- }
- }
-
- if (dmrc != NULL) {
- mode_t oldmode;
- oldmode = umask (077);
- gdm_common_config_save (dmrc, cfgstr, NULL);
- umask (oldmode);
- }
-
- g_free (cfgstr);
- g_key_file_free (dmrc);
-}
-
-void
-gdm_daemon_config_get_user_session_lang (char **usrsess,
- char **usrlang,
- const char *home_dir,
- gboolean *savesess)
-{
- char *p;
- char *cfgfile;
- GKeyFile *cfg;
- char *session;
- char *lang;
- gboolean save;
-
- cfgfile = g_build_filename (home_dir, ".dmrc", NULL);
- cfg = gdm_common_config_load (cfgfile, NULL);
- g_free (cfgfile);
-
- save = FALSE;
- session = NULL;
- lang = NULL;
-
- gdm_common_config_get_string (cfg, "Desktop/Session", &session, NULL);
- if (session == NULL) {
- session = g_strdup ("");
- }
-
- /* this is just being truly anal about what users give us, and in case
- * it looks like they may have included a path whack it. */
- p = strrchr (session, '/');
- if (p != NULL) {
- char *tmp = g_strdup (p + 1);
- g_free (session);
- session = tmp;
- }
-
- /* ugly workaround for migration */
- if (strcmp (session, "Default") == 0 ||
- strcmp (session, "Default.desktop") == 0) {
- g_free (session);
- session = g_strdup ("default");
- save = TRUE;
- }
-
- gdm_common_config_get_string (cfg, "Desktop/Language", &lang, NULL);
- if (lang == NULL) {
- lang = g_strdup ("");
- }
-
- if (usrsess != NULL) {
- *usrsess = g_strdup (session);
- }
- g_free (session);
-
- if (savesess != NULL) {
- *savesess = save;
- }
-
- if (usrlang != NULL) {
- *usrlang = g_strdup (lang);
- }
- g_free (lang);
-
- g_key_file_free (cfg);
-}
View Lorry Controller Status