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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager system settings service - keyfile plugin
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2015 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nms-keyfile-reader.h"
#include <sys/stat.h>
#include <string.h>
#include "nm-keyfile-internal.h"
#include "NetworkManagerUtils.h"
/*****************************************************************************/
static const char *
_fmt_warn (const char *group, NMSetting *setting, const char *property_name, const char *message, char **out_message)
{
const char *setting_name = setting ? nm_setting_get_name (setting) : NULL;
if (group) {
char *res;
if (setting_name) {
if (property_name && !strcmp (group, setting_name))
res = g_strdup_printf ("%s.%s: %s", group, property_name, message);
else if (property_name)
res = g_strdup_printf ("%s/%s.%s: %s", group, setting_name, property_name, message);
else if (!strcmp (group, setting_name))
res = g_strdup_printf ("%s: %s", group, message);
else
res = g_strdup_printf ("%s/%s: %s", group, setting_name, message);
} else
res = g_strdup_printf ("%s: %s", group, message);
*out_message = res;
return res;
} else
return message;
}
typedef struct {
bool verbose;
} HandlerReadData;
static gboolean
_handler_read (GKeyFile *keyfile,
NMConnection *connection,
NMKeyfileReadType type,
void *type_data,
void *user_data,
GError **error)
{
const HandlerReadData *handler_data = user_data;
if (type == NM_KEYFILE_READ_TYPE_WARN) {
NMKeyfileReadTypeDataWarn *warn_data = type_data;
NMLogLevel level;
char *message_free = NULL;
if (!handler_data->verbose)
return TRUE;
if (warn_data->severity > NM_KEYFILE_WARN_SEVERITY_WARN)
level = LOGL_ERR;
else if (warn_data->severity >= NM_KEYFILE_WARN_SEVERITY_WARN)
level = LOGL_WARN;
else if (warn_data->severity == NM_KEYFILE_WARN_SEVERITY_INFO_MISSING_FILE)
level = LOGL_WARN;
else
level = LOGL_INFO;
nm_log (level, LOGD_SETTINGS, "keyfile: %s",
_fmt_warn (warn_data->group, warn_data->setting,
warn_data->property_name, warn_data->message,
&message_free));
g_free (message_free);
return TRUE;
}
return FALSE;
}
NMConnection *
nms_keyfile_reader_from_keyfile (GKeyFile *key_file,
const char *filename,
gboolean verbose,
GError **error)
{
HandlerReadData data = {
.verbose = verbose,
};
return nm_keyfile_read (key_file, filename, NULL, _handler_read, &data, error);
}
NMConnection *
nms_keyfile_reader_from_file (const char *filename, GError **error)
{
GKeyFile *key_file;
struct stat statbuf;
NMConnection *connection = NULL;
GError *verify_error = NULL;
if (stat (filename, &statbuf) != 0 || !S_ISREG (statbuf.st_mode)) {
g_set_error_literal (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
"File did not exist or was not a regular file");
return NULL;
}
if (!NM_FLAGS_HAS (nm_utils_get_testing (), NM_UTILS_TEST_NO_KEYFILE_OWNER_CHECK)) {
if (statbuf.st_mode & 0077) {
g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
"File permissions (%o) were insecure",
statbuf.st_mode);
return NULL;
}
if (statbuf.st_uid != 0) {
g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
"File owner (%o) is insecure",
statbuf.st_mode);
return NULL;
}
}
key_file = g_key_file_new ();
if (!g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, error))
goto out;
connection = nms_keyfile_reader_from_keyfile (key_file, filename, TRUE, error);
if (!connection)
goto out;
/* Normalize and verify the connection */
if (!nm_connection_normalize (connection, NULL, NULL, &verify_error)) {
g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
"invalid connection: %s",
verify_error->message);
g_clear_error (&verify_error);
g_object_unref (connection);
connection = NULL;
}
out:
g_key_file_free (key_file);
return connection;
}
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