Imported Upstream version 0.8.998 upstream/0.8.998

1 files changed, 188 insertions, 0 deletions

diff --git a/libnm-glib/nm-vpn-plugin-utils.c b/libnm-glib/nm-vpn-plugin-utils.c
new file mode 100644
index 00000000..8234a919
--- /dev/null
+++ b/libnm-glib/nm-vpn-plugin-utils.c
@@ -0,0 +1,188 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/*
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "nm-vpn-plugin-utils.h"
+#include "nm-setting-private.h"
+
+#define DATA_KEY_TAG "DATA_KEY="
+#define DATA_VAL_TAG "DATA_VAL="
+#define SECRET_KEY_TAG "SECRET_KEY="
+#define SECRET_VAL_TAG "SECRET_VAL="
+
+static void
+free_secret (gpointer data)
+{
+	char *secret = data;
+
+	memset (secret, 0, strlen (secret));
+	g_free (secret);
+}
+
+/**
+ * nm_vpn_plugin_utils_read_vpn_details:
+ * @fd: file descriptor to read from, usually stdin (0)
+ * @out_data: (out) (transfer full): on successful return, a hash table
+ * (mapping char*:char*) containing the key/value pairs of VPN data items
+ * @out_secrets: (out) (transfer full): on successful return, a hash table
+ * (mapping char*:char*) containing the key/value pairsof VPN secrets
+ *
+ * Parses key/value pairs from a file descriptor (normally stdin) passed by
+ * an applet when the applet calls the authentication dialog of the VPN plugin.
+ *
+ * Returns: %TRUE if reading values was successful, %FALSE if not
+ **/
+gboolean
+nm_vpn_plugin_utils_read_vpn_details (int fd,
+                                      GHashTable **out_data,
+                                      GHashTable **out_secrets)
+{
+	GHashTable *data, *secrets;
+	gboolean success = FALSE;
+	char *key = NULL, *val = NULL;
+	GString *line;
+	gchar c;
+
+	if (out_data)
+		g_return_val_if_fail (*out_data == NULL, FALSE);
+	if (out_secrets)
+		g_return_val_if_fail (*out_secrets == NULL, FALSE);
+
+	data = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+	secrets = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, free_secret);
+
+	line = g_string_new (NULL);
+
+	/* Read stdin for data and secret items until we get a DONE */
+	while (1) {
+		ssize_t nr;
+		GHashTable *hash = NULL;
+
+		errno = 0;
+		nr = read (fd, &c, 1);
+		if (nr == -1) {
+			if (errno == EAGAIN) {
+				g_usleep (100);
+				continue;
+			}
+			break;
+		}
+
+		if (c != '\n') {
+			g_string_append_c (line, c);
+			continue;
+		}
+
+		/* Check for the finish marker */
+		if (strcmp (line->str, "DONE") == 0)
+			break;
+
+		/* Otherwise it's a data/secret item */
+		if (strncmp (line->str, DATA_KEY_TAG, strlen (DATA_KEY_TAG)) == 0) {
+			hash = data;
+			key = g_strdup (line->str + strlen (DATA_KEY_TAG));
+		} else if (strncmp (line->str, DATA_VAL_TAG, strlen (DATA_VAL_TAG)) == 0) {
+			hash = data;
+			val = g_strdup (line->str + strlen (DATA_VAL_TAG));
+		} else if (strncmp (line->str, SECRET_KEY_TAG, strlen (SECRET_KEY_TAG)) == 0) {
+			hash = secrets;
+			key = g_strdup (line->str + strlen (SECRET_KEY_TAG));
+		} else if (strncmp (line->str, SECRET_VAL_TAG, strlen (SECRET_VAL_TAG)) == 0) {
+			hash = secrets;
+			val = g_strdup (line->str + strlen (SECRET_VAL_TAG));
+		}
+		g_string_truncate (line, 0);
+
+		if (key && val && hash) {
+			g_hash_table_insert (hash, key, val);
+			key = NULL;
+			val = NULL;
+			success = TRUE;  /* Got at least one value */
+		}
+	}
+
+	if (success) {
+		if (out_data)
+			*out_data = data;
+		else
+			g_hash_table_destroy (data);
+
+		if (out_secrets)
+			*out_secrets = secrets;
+		else
+			g_hash_table_destroy (secrets);
+	} else {
+		g_hash_table_destroy (data);
+		g_hash_table_destroy (secrets);
+	}
+
+	g_string_free (line, TRUE);
+	return success;
+}
+
+/**
+ * nm_vpn_plugin_utils_get_secret_flags:
+ * @data: hash table containing VPN key/value pair data items
+ * @secret_name: VPN secret key name for which to retrieve flags for
+ * @out_flags: (out): on success, the flags associated with @secret_name
+ *
+ * Given a VPN secret key name, attempts to find the corresponding flags data
+ * item in @data.  If found, converts the flags data item to
+ * #NMSettingSecretFlags and returns it.
+ *
+ * Returns: %TRUE if the flag data item was found and successfully converted
+ * to flags, %FALSE if not
+ **/
+gboolean
+nm_vpn_plugin_utils_get_secret_flags (GHashTable *data,
+                                      const char *secret_name,
+                                      NMSettingSecretFlags *out_flags)
+{
+	char *flag_name;
+	const char *val;
+	unsigned long tmp;
+	gboolean success = FALSE;
+
+	g_return_val_if_fail (data != NULL, FALSE);
+	g_return_val_if_fail (secret_name != NULL, FALSE);
+	g_return_val_if_fail (out_flags != NULL, FALSE);
+	g_return_val_if_fail (*out_flags == NM_SETTING_SECRET_FLAG_NONE, FALSE);
+
+	flag_name = g_strdup_printf ("%s-flags", secret_name);
+
+	/* Try new flags value first */
+	val = g_hash_table_lookup (data, flag_name);
+	if (val) {
+		errno = 0;
+		tmp = strtoul (val, NULL, 10);
+		if (errno == 0 && tmp <= NM_SETTING_SECRET_FLAGS_ALL) {
+			*out_flags = (NMSettingSecretFlags) tmp;
+			success = TRUE;
+		}
+	}
+
+	g_free (flag_name);
+	return success;
+}
+