pppd will use this library to talk with connman vpn plugin.
---
scripts/libppp-plugin.c | 305 +++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 305 insertions(+), 0 deletions(-)
create mode 100644 scripts/libppp-plugin.c
diff --git a/scripts/libppp-plugin.c b/scripts/libppp-plugin.c
new file mode 100644
index 0000000..320dcd3
--- /dev/null
+++ b/scripts/libppp-plugin.c
@@ -0,0 +1,305 @@
+/*
+ *
+ * Connection Manager
+ *
+ * Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <pppd/pppd.h>
+#include <pppd/fsm.h>
+#include <pppd/ipcp.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <dbus/dbus.h>
+
+#define INET_ADDRES_LEN (INET_ADDRSTRLEN + 5)
+#define INET_DNS_LEN (2*INET_ADDRSTRLEN + 9)
+
+static char *busname = NULL;
+static char *interface = NULL;
+static char *path = NULL;
+
+static DBusConnection *connection = NULL;
+
+char pppd_version[] = VERSION;
+
+int plugin_init(void);
+
+static void append(DBusMessageIter *dict, const char *key, const char *value)
+{
+ DBusMessageIter entry;
+ /* We clean the environment before invoking openconnect, but
+ might as well still filter out the few things that get
+ added that we're not interested in */
+ if (!strcmp(key, "PWD") || !strcmp(key, "_") ||
+ !strcmp(key, "SHLVL") || !strcmp(key, "connman_busname") ||
+ !strcmp(key, "connman_network"))
+ return;
+
+ dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY,
+ NULL, &entry);
+
+ dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
+
+ dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &value);
+
+ dbus_message_iter_close_container(dict, &entry);
+}
+
+
+static int pptp_have_secret()
+{
+ return 1;
+}
+
+static int pptp_get_secret (char *username, char *password)
+{
+ DBusMessage *msg, *reply;
+ const char *user, *pass;
+ DBusError err;
+
+ if (username == NULL && password == NULL)
+ return -1;
+
+ if (password == NULL)
+ return 1;
+
+ if (connection == NULL)
+ return -1;
+
+ dbus_error_init(&err);
+
+ msg = dbus_message_new_method_call(busname, path,
+ interface, "getsec");
+ if (msg == NULL)
+ return -1;
+
+ dbus_message_append_args(msg, DBUS_TYPE_INVALID, DBUS_TYPE_INVALID);
+
+ reply = dbus_connection_send_with_reply_and_block(connection,
+ msg, -1, &err);
+
+ if (reply == NULL) {
+ if (dbus_error_is_set(&err) == TRUE)
+ dbus_error_free(&err);
+
+ dbus_message_unref(msg);
+ return -1;
+ }
+
+ dbus_message_unref(msg);
+
+ dbus_error_init(&err);
+
+ if (dbus_message_get_args(reply, &err, DBUS_TYPE_STRING, &user,
+ DBUS_TYPE_STRING, &pass,
+ DBUS_TYPE_INVALID) == FALSE) {
+ if (dbus_error_is_set(&err) == TRUE)
+ dbus_error_free(&err);
+
+ dbus_message_unref(reply);
+ return -1;
+ }
+
+ if (username != NULL)
+ strcpy(username, user);
+
+ strcpy(password, pass);
+
+ dbus_message_unref(reply);
+
+ return 1;
+}
+
+static void ppptp_up (void *data, int arg)
+{
+ char buf[INET_ADDRES_LEN];
+ char dns[INET_DNS_LEN];
+ const char *reason = "connect";
+ bool add_blank = FALSE;
+ DBusMessageIter iter, dict;
+ DBusMessage *msg;
+
+ if (connection == NULL)
+ return;
+
+ if (ipcp_gotoptions[0].ouraddr == 0)
+ return;
+
+ msg = dbus_message_new_method_call(busname, path,
+ interface, "notify");
+ if (msg == NULL)
+ return;
+
+ dbus_message_set_no_reply(msg, TRUE);
+
+ dbus_message_append_args(msg,
+ DBUS_TYPE_STRING, &reason, DBUS_TYPE_INVALID);
+
+ dbus_message_iter_init_append(msg, &iter);
+
+ dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_STRING_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+
+ append(&dict, "INTERNAL_IFNAME", ifname);
+
+ inet_ntop(AF_INET, &ipcp_gotoptions[0].ouraddr, buf, INET_ADDRSTRLEN);
+ append(&dict, "INTERNAL_IP4_ADDRESS", buf);
+
+ strcpy(buf, "255.255.255.255");
+ append(&dict, "INTERNAL_IP4_NETMASK", buf);
+
+ if (ipcp_gotoptions[0].dnsaddr[0] || ipcp_gotoptions[0].dnsaddr[1]) {
+ memset(dns, 0, sizeof(dns));
+ dns[0] = '\0';
+
+ if (ipcp_gotoptions[0].dnsaddr[0]) {
+ inet_ntop(AF_INET, &ipcp_gotoptions[0].dnsaddr[0],
+ buf, INET_ADDRSTRLEN);
+ strcat(dns, buf);
+
+ add_blank = TRUE;
+ }
+ if (ipcp_gotoptions[0].dnsaddr[1]) {
+ inet_ntop(AF_INET, &ipcp_gotoptions[0].dnsaddr[1],
+ buf, INET_ADDRSTRLEN);
+ if (add_blank == TRUE)
+ strcat(dns, " ");
+
+ strcat(dns, buf);
+ }
+ append(&dict, "INTERNAL_IP4_DNS", dns);
+ }
+
+ append(&dict, "MTU", "1400");
+
+ dbus_message_iter_close_container(&iter, &dict);
+
+ dbus_connection_send(connection, msg, NULL);
+
+ dbus_connection_flush(connection);
+
+ dbus_message_unref(msg);
+}
+
+static void pptp_exit (void *data, int arg)
+{
+ if (connection != NULL) {
+ dbus_connection_unref(connection);
+ connection = NULL;
+ }
+
+ if (busname != NULL) {
+ free(busname);
+ busname = NULL;
+ }
+
+ if (interface != NULL) {
+ free(interface);
+ interface = NULL;
+ }
+
+ if (path != NULL) {
+ free(path);
+ path = NULL;
+ }
+}
+
+static void pptp_phase_change(void *data, int arg)
+{
+ const char *reason = "disconnect";
+ DBusMessage *msg;
+
+ if (connection == NULL)
+ return;
+
+ if (arg == PHASE_DEAD || arg == PHASE_DISCONNECT) {
+ msg = dbus_message_new_method_call(busname, path,
+ interface, "notify");
+ if (msg == NULL)
+ return;
+
+ dbus_message_set_no_reply(msg, TRUE);
+
+ dbus_message_append_args(msg,
+ DBUS_TYPE_STRING, &reason, DBUS_TYPE_INVALID);
+
+ dbus_connection_send(connection, msg, NULL);
+
+ dbus_connection_flush(connection);
+
+ dbus_message_unref(msg);
+ }
+}
+
+int plugin_init(void)
+{
+ DBusError error;
+ static const char *bus, *inter, *p;
+
+ dbus_error_init(&error);
+
+ bus = getenv("CONNMAN_BUSNAME");
+ inter = getenv("CONNMAN_INTERFACE");
+ p = getenv("CONNMAN_PATH");
+
+ if (!bus || !inter || !p)
+ return -1;
+
+ busname = strdup(bus);
+ interface = strdup(inter);
+ path = strdup(p);
+
+ if (!busname || !interface || !path) {
+ pptp_exit(NULL, 0);
+ return -1;
+ }
+
+ connection = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
+ if (connection == NULL) {
+ if (dbus_error_is_set(&error) == TRUE)
+ dbus_error_free(&error);
+
+ pptp_exit(NULL, 0);
+ return -1;
+ }
+
+ pap_passwd_hook = pptp_get_secret;
+ chap_passwd_hook = pptp_get_secret;
+
+ chap_check_hook = pptp_have_secret;
+ pap_check_hook = pptp_have_secret;
+
+ add_notifier (&ip_up_notifier, ppptp_up, NULL);
+ add_notifier (&phasechange, pptp_phase_change, NULL);
+ add_notifier (&exitnotify, pptp_exit, connection);
+
+ return 0;
+}
--
1.7.3.4
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