mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager
synced 2024-10-16 04:54:23 +00:00
8bace23beb
- All internal source files (except "examples", which are not internal) should include "config.h" first. As also all internal source files should include "nm-default.h", let "config.h" be included by "nm-default.h" and include "nm-default.h" as first in every source file. We already wanted to include "nm-default.h" before other headers because it might contains some fixes (like "nm-glib.h" compatibility) that is required first. - After including "nm-default.h", we optinally allow for including the corresponding header file for the source file at hand. The idea is to ensure that each header file is self contained. - Don't include "config.h" or "nm-default.h" in any header file (except "nm-sd-adapt.h"). Public headers anyway must not include these headers, and internal headers are never included after "nm-default.h", as of the first previous point. - Include all internal headers with quotes instead of angle brackets. In practice it doesn't matter, because in our public headers we must include other headers with angle brackets. As we use our public headers also to compile our interal source files, effectively the result must be the same. Still do it for consistency. - Except for <config.h> itself. Include it with angle brackets as suggested by https://www.gnu.org/software/autoconf/manual/autoconf.html#Configuration-Headers
192 lines
5.4 KiB
C
192 lines
5.4 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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* Copyright 2011 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include <errno.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include "nm-vpn-plugin-utils.h"
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#include "nm-vpn-plugin.h"
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#include "nm-setting-private.h"
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#include "nm-dbus-glib-types.h"
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#define DATA_KEY_TAG "DATA_KEY="
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#define DATA_VAL_TAG "DATA_VAL="
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#define SECRET_KEY_TAG "SECRET_KEY="
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#define SECRET_VAL_TAG "SECRET_VAL="
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static void
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free_secret (gpointer data)
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{
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char *secret = data;
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memset (secret, 0, strlen (secret));
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g_free (secret);
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}
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/**
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* nm_vpn_plugin_utils_read_vpn_details:
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* @fd: file descriptor to read from, usually stdin (0)
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* @out_data: (out) (transfer full): on successful return, a hash table
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* (mapping char*:char*) containing the key/value pairs of VPN data items
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* @out_secrets: (out) (transfer full): on successful return, a hash table
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* (mapping char*:char*) containing the key/value pairsof VPN secrets
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*
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* Parses key/value pairs from a file descriptor (normally stdin) passed by
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* an applet when the applet calls the authentication dialog of the VPN plugin.
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*
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* Returns: %TRUE if reading values was successful, %FALSE if not
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**/
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gboolean
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nm_vpn_plugin_utils_read_vpn_details (int fd,
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GHashTable **out_data,
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GHashTable **out_secrets)
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{
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GHashTable *data, *secrets;
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gboolean success = FALSE;
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char *key = NULL, *val = NULL;
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GString *line;
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gchar c;
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if (out_data)
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g_return_val_if_fail (*out_data == NULL, FALSE);
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if (out_secrets)
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g_return_val_if_fail (*out_secrets == NULL, FALSE);
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data = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
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secrets = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, free_secret);
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line = g_string_new (NULL);
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/* Read stdin for data and secret items until we get a DONE */
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while (1) {
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ssize_t nr;
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GHashTable *hash = NULL;
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errno = 0;
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nr = read (fd, &c, 1);
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if (nr == -1) {
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if (errno == EAGAIN) {
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g_usleep (100);
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continue;
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}
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break;
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}
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if (c != '\n') {
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g_string_append_c (line, c);
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continue;
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}
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/* Check for the finish marker */
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if (strcmp (line->str, "DONE") == 0)
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break;
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/* Otherwise it's a data/secret item */
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if (strncmp (line->str, DATA_KEY_TAG, strlen (DATA_KEY_TAG)) == 0) {
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hash = data;
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key = g_strdup (line->str + strlen (DATA_KEY_TAG));
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} else if (strncmp (line->str, DATA_VAL_TAG, strlen (DATA_VAL_TAG)) == 0) {
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hash = data;
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val = g_strdup (line->str + strlen (DATA_VAL_TAG));
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} else if (strncmp (line->str, SECRET_KEY_TAG, strlen (SECRET_KEY_TAG)) == 0) {
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hash = secrets;
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key = g_strdup (line->str + strlen (SECRET_KEY_TAG));
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} else if (strncmp (line->str, SECRET_VAL_TAG, strlen (SECRET_VAL_TAG)) == 0) {
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hash = secrets;
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val = g_strdup (line->str + strlen (SECRET_VAL_TAG));
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}
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g_string_truncate (line, 0);
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if (key && val && hash) {
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g_hash_table_insert (hash, key, val);
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key = NULL;
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val = NULL;
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success = TRUE; /* Got at least one value */
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}
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}
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if (success) {
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if (out_data)
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*out_data = data;
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else
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g_hash_table_destroy (data);
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if (out_secrets)
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*out_secrets = secrets;
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else
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g_hash_table_destroy (secrets);
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} else {
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g_hash_table_destroy (data);
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g_hash_table_destroy (secrets);
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}
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g_string_free (line, TRUE);
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return success;
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}
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/**
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* nm_vpn_plugin_utils_get_secret_flags:
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* @data: hash table containing VPN key/value pair data items
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* @secret_name: VPN secret key name for which to retrieve flags for
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* @out_flags: (out): on success, the flags associated with @secret_name
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*
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* Given a VPN secret key name, attempts to find the corresponding flags data
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* item in @data. If found, converts the flags data item to
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* #NMSettingSecretFlags and returns it.
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*
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* Returns: %TRUE if the flag data item was found and successfully converted
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* to flags, %FALSE if not
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**/
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gboolean
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nm_vpn_plugin_utils_get_secret_flags (GHashTable *data,
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const char *secret_name,
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NMSettingSecretFlags *out_flags)
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{
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char *flag_name;
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const char *val;
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unsigned long tmp;
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gboolean success = FALSE;
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g_return_val_if_fail (data != NULL, FALSE);
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g_return_val_if_fail (secret_name != NULL, FALSE);
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g_return_val_if_fail (out_flags != NULL, FALSE);
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g_return_val_if_fail (*out_flags == NM_SETTING_SECRET_FLAG_NONE, FALSE);
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flag_name = g_strdup_printf ("%s-flags", secret_name);
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/* Try new flags value first */
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val = g_hash_table_lookup (data, flag_name);
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if (val) {
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errno = 0;
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tmp = strtoul (val, NULL, 10);
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if (errno == 0 && tmp <= NM_SETTING_SECRET_FLAGS_ALL) {
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*out_flags = (NMSettingSecretFlags) tmp;
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success = TRUE;
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}
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}
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g_free (flag_name);
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return success;
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}
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