int conf_file_merge(void)
{
GDir *confdir;
struct stat fileinfo, dir;
char *mode = 0, *ip = 0, *gateway = 0, *udev = 0;
gchar *filename_full;
const gchar *filename;
GString *keyfile_string = NULL;
GKeyFile *settingsfile;
int ret = 0, test = 0, conffile_created = 0;
confdir = g_dir_open(CONFIG_FILE_DIR, 0, NULL);
if(!confdir)
{
log_debug("No configuration. Creating defaults.\n");
create_conf_file();
/* since there was no configuration at all there is no info to be merged */
return (ret);
}
if (stat(FS_MOUNT_CONFIG_FILE, &fileinfo) == -1)
{
/* conf file not created yet, make default and merge all */
create_conf_file();
conffile_created = 1;
}
/* config file is created, so the dir must exists */
if(stat(CONFIG_FILE_DIR, &dir))
{
log_warning("Directory still does not exists. FS might be ro/corrupted!\n");
ret = 1;
goto end;
}
/* st_mtime is changed by file modifications, st_mtime of a directory is changed by the creation or deletion of files in that directory.
So if the st_mtime of the config file is equal to the directory time we can be sure the config is untouched and we do not need
to re-merge the config.
*/
if(fileinfo.st_mtime == dir.st_mtime)
{
/* if a conffile was created, the st_mtime would have been updated so this check will miss information that might be there already,
like after a config file removal for example. So we run a merge anyway if we needed to create the conf file */
if(!conffile_created)
goto end;
}
log_debug("Merging/creating configuration.\n");
keyfile_string = g_string_new(NULL);
/* check each ini file and get contents */
while((filename = g_dir_read_name(confdir)) != NULL)
{
if(!strstr(filename, ".ini"))
{
/* skip this file as it might be a dir or not an ini file */
continue;
}
filename_full = g_strconcat(CONFIG_FILE_DIR, "/", filename, NULL);
log_debug("filename = %s\n", filename_full);
if(!strcmp(filename_full, FS_MOUNT_CONFIG_FILE))
{
/* store mode info to add it later as we want to keep it */
mode = get_mode_setting();
/* store udev path (especially important for the upgrade path */
udev = find_udev_path();
ip = get_conf_string(NETWORK_ENTRY, NETWORK_IP_KEY);
gateway = get_conf_string(NETWORK_ENTRY, NETWORK_GATEWAY_KEY);
continue;
}
/* load contents of file, if it fails skip to next one */
settingsfile = g_key_file_new();
test = g_key_file_load_from_file(settingsfile, filename_full, G_KEY_FILE_KEEP_COMMENTS, NULL);
if(!test)
{
log_debug("%d failed loading config file %s\n", test, filename_full);
goto next;
}
log_debug("file data = %s\n", g_key_file_to_data(settingsfile, NULL, NULL));
keyfile_string = g_string_append(keyfile_string, g_key_file_to_data(settingsfile, NULL, NULL));
log_debug("keyfile_string = %s\n", keyfile_string->str);
g_key_file_free(settingsfile);
next:
g_free(filename_full);
}
if(keyfile_string)
{
/* write out merged config file */
/* g_file_set_contents returns 1 on succes, this function returns 0 */
ret = !g_file_set_contents(FS_MOUNT_CONFIG_FILE, keyfile_string->str, -1, NULL);
g_string_free(keyfile_string, TRUE);
if(mode)
{
set_mode_setting(mode);
}
if(udev)
{
set_config_setting(UDEV_PATH_ENTRY, UDEV_PATH_KEY, udev);
}
/* check if no network data came from an ini file */
if( get_conf_string(NETWORK_ENTRY, NETWORK_IP_KEY))
goto cleanup;
if(ip)
set_network_setting(NETWORK_IP_KEY, ip);
if(gateway)
set_network_setting(NETWORK_GATEWAY_KEY, gateway);
}
else
ret = 1;
cleanup:
if(mode)
free(mode);
if(udev)
free(udev);
if(ip)
free(ip);
if(gateway)
free(gateway);
end:
g_dir_close(confdir);
return(ret);
}
gboolean hwal_init(void)
{
const gchar *udev_path = NULL, *udev_subsystem = NULL;
struct udev_device *dev;
int ret = 0;
/* Create the udev object */
udev = udev_new();
if (!udev)
{
log_err("Can't create udev\n");
return FALSE;
}
udev_path = find_udev_path();
if(udev_path)
{
dev = udev_device_new_from_syspath(udev, udev_path);
g_free((gpointer *)udev_path);
}
else
dev = udev_device_new_from_syspath(udev, "/sys/class/power_supply/usb");
if (!dev)
{
log_err("Unable to find $power_supply device.");
/* communicate failure, mainloop will exit and call appropriate clean-up */
return FALSE;
}
else
{
dev_name = udev_device_get_sysname(dev);
log_debug("device name = %s\n", dev_name);
}
mon = udev_monitor_new_from_netlink (udev, "udev");
if (!mon)
{
log_err("Unable to monitor the netlink\n");
/* communicate failure, mainloop will exit and call appropriate clean-up */
return FALSE;
}
udev_subsystem = find_udev_subsystem();
if(udev_subsystem)
{
ret = udev_monitor_filter_add_match_subsystem_devtype(mon, udev_subsystem, NULL);
g_free((gpointer *)udev_subsystem);
}
else
ret = udev_monitor_filter_add_match_subsystem_devtype(mon, "power_supply", NULL);
if(ret != 0)
{
log_err("Udev match failed.\n");
return FALSE;
}
ret = udev_monitor_enable_receiving (mon);
if(ret != 0)
{
log_err("Failed to enable monitor recieving.\n");
return FALSE;
}
/* check if we are already connected */
udev_parse(dev);
iochannel = g_io_channel_unix_new(udev_monitor_get_fd(mon));
watch_id = g_io_add_watch_full(iochannel, 0, G_IO_IN, monitor_udev, NULL,notify_issue);
/* everything went well */
return TRUE;
}
int conf_file_merge(void)
{
GDir *confdir;
struct stat fileinfo, dir;
const gchar *filename, *mode = 0;
gchar *filename_full;
GString *keyfile_string = NULL;
GKeyFile *settingsfile;
int ret = 0, test = 0;
#ifdef UDEV
const gchar *udev = 0;
#endif /* UDEV */
confdir = g_dir_open(CONFIG_FILE_DIR, 0, NULL);
if(!confdir)
{
log_debug("No configuration. Creating defaults.\n");
create_conf_file();
return (ret);
}
if (stat(FS_MOUNT_CONFIG_FILE, &fileinfo) == -1)
{
/* conf file not created yet, make default and merge all */
create_conf_file();
}
/* config file is created, so the dir must exists */
stat(CONFIG_FILE_DIR, &dir);
/* st_mtime is changed by file modifications, st_mtime of a directory is changed by the creation or deletion of files in that directory.
So if the st_mtime of the config file is equal to the directory time we can be sure the config is untouched and we do not need
to re-merge the config.
*/
if(fileinfo.st_mtime == dir.st_mtime)
return 0;
log_debug("Merging/creating configuration.\n");
keyfile_string = g_string_new(NULL);
/* check each ini file and get contents */
while((filename = g_dir_read_name(confdir)) != NULL)
{
log_debug("filename = %s\n", filename);
filename_full = g_strconcat(CONFIG_FILE_DIR, "/", filename, NULL);
if(!strcmp(filename_full, FS_MOUNT_CONFIG_FILE))
{
/* store mode info to add it later as we want to keep it */
mode = get_mode_setting();
#ifdef UDEV
/* store udev path (especially important for the upgrade path */
udev = find_udev_path();
#endif /* UDEV */
break;
}
/* load contents of file, if it fails skip to next one */
settingsfile = g_key_file_new();
test = g_key_file_load_from_file(settingsfile, filename_full, G_KEY_FILE_KEEP_COMMENTS, NULL);
if(!test)
{
log_debug("%d failed loading config file %s\n", test, filename_full);
g_free(filename_full);
break;
}
g_free(filename_full);
log_debug("file data = %s\n", g_key_file_to_data(settingsfile, NULL, NULL));
keyfile_string = g_string_append(keyfile_string, g_key_file_to_data(settingsfile, NULL, NULL));
log_debug("keyfile_string = %s\n", keyfile_string->str);
g_key_file_free(settingsfile);
}
if(keyfile_string)
{
/* write out merged config file */
/* g_file_set_contents returns 1 on succes, this function returns 0 */
ret = !g_file_set_contents(FS_MOUNT_CONFIG_FILE, keyfile_string->str, -1, NULL);
g_string_free(keyfile_string, TRUE);
if(mode)
{
set_mode_setting(mode);
}
#ifdef UDEV
if(udev)
{
set_config_setting(UDEV_PATH_ENTRY, UDEV_PATH_KEY, udev);
}
#endif /* UDEV */
}
else
ret = 1;
if(mode)
free((void *)mode);
#ifdef UDEV
if(udev)
free((void *)udev);
#endif /* UDEV */
g_dir_close(confdir);
return(ret);
}
