New upstream version 1.5.90 upstream/1.5.90

1 files changed, 417 insertions, 0 deletions

diff --git a/src/ppp/nm-pppd-plugin.c b/src/ppp/nm-pppd-plugin.c
new file mode 100644
index 00000000..9c47c339
--- /dev/null
+++ b/src/ppp/nm-pppd-plugin.c
@@ -0,0 +1,417 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/* NetworkManager -- Network link manager
+ *
+ * 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) 2008 Novell, Inc.
+ * Copyright (C) 2008 Red Hat, Inc.
+ */
+
+#include <config.h>
+#define ___CONFIG_H__
+
+#include <string.h>
+#include <pppd/pppd.h>
+#include <pppd/fsm.h>
+#include <pppd/ipcp.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <dlfcn.h>
+
+#define INET6
+#include <pppd/eui64.h>
+#include <pppd/ipv6cp.h>
+
+#include "nm-default.h"
+#include "nm-dbus-interface.h"
+#include "nm-pppd-plugin.h"
+#include "nm-ppp-status.h"
+
+int plugin_init (void);
+
+char pppd_version[] = VERSION;
+
+static GDBusProxy *proxy = NULL;
+
+static void
+nm_phasechange (void *data, int arg)
+{
+	NMPPPStatus ppp_status = NM_PPP_STATUS_UNKNOWN;
+	char *ppp_phase;
+
+	g_return_if_fail (G_IS_DBUS_PROXY (proxy));
+
+	switch (arg) {
+	case PHASE_DEAD:
+		ppp_status = NM_PPP_STATUS_DEAD;
+		ppp_phase = "dead";
+		break;
+	case PHASE_INITIALIZE:
+		ppp_status = NM_PPP_STATUS_INITIALIZE;
+		ppp_phase = "initialize";
+		break;
+	case PHASE_SERIALCONN:
+		ppp_status = NM_PPP_STATUS_SERIALCONN;
+		ppp_phase = "serial connection";
+		break;
+	case PHASE_DORMANT:
+		ppp_status = NM_PPP_STATUS_DORMANT;
+		ppp_phase = "dormant";
+		break;
+	case PHASE_ESTABLISH:
+		ppp_status = NM_PPP_STATUS_ESTABLISH;
+		ppp_phase = "establish";
+		break;
+	case PHASE_AUTHENTICATE:
+		ppp_status = NM_PPP_STATUS_AUTHENTICATE;
+		ppp_phase = "authenticate";
+		break;
+	case PHASE_CALLBACK:
+		ppp_status = NM_PPP_STATUS_CALLBACK;
+		ppp_phase = "callback";
+		break;
+	case PHASE_NETWORK:
+		ppp_status = NM_PPP_STATUS_NETWORK;
+		ppp_phase = "network";
+		break;
+	case PHASE_RUNNING:
+		ppp_status = NM_PPP_STATUS_RUNNING;
+		ppp_phase = "running";
+		break;
+	case PHASE_TERMINATE:
+		ppp_status = NM_PPP_STATUS_TERMINATE;
+		ppp_phase = "terminate";
+		break;
+	case PHASE_DISCONNECT:
+		ppp_status = NM_PPP_STATUS_DISCONNECT;
+		ppp_phase = "disconnect";
+		break;
+	case PHASE_HOLDOFF:
+		ppp_status = NM_PPP_STATUS_HOLDOFF;
+		ppp_phase = "holdoff";
+		break;
+	case PHASE_MASTER:
+		ppp_status = NM_PPP_STATUS_MASTER;
+		ppp_phase = "master";
+		break;
+
+	default:
+		ppp_phase = "unknown";
+		break;
+	}
+
+	g_message ("nm-ppp-plugin: (%s): status %d / phase '%s'",
+	           __func__,
+	           ppp_status,
+	           ppp_phase);
+
+	if (ppp_status != NM_PPP_STATUS_UNKNOWN) {
+		g_dbus_proxy_call (proxy,
+		                   "SetState",
+		                   g_variant_new ("(u)", ppp_status),
+		                   G_DBUS_CALL_FLAGS_NONE, -1,
+		                   NULL,
+		                   NULL, NULL);
+	}
+}
+
+static void
+nm_ip_up (void *data, int arg)
+{
+	ipcp_options opts = ipcp_gotoptions[0];
+	ipcp_options peer_opts = ipcp_hisoptions[0];
+	GVariantBuilder builder;
+	guint32 pppd_made_up_address = htonl (0x0a404040 + ifunit);
+
+	g_return_if_fail (G_IS_DBUS_PROXY (proxy));
+
+	g_message ("nm-ppp-plugin: (%s): ip-up event", __func__);
+
+	if (!opts.ouraddr) {
+		g_warning ("nm-ppp-plugin: (%s): didn't receive an internal IP from pppd!", __func__);
+		nm_phasechange (NULL, PHASE_DEAD);
+		return;
+	}
+
+	g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT);
+
+	g_variant_builder_add (&builder, "{sv}",
+	                       NM_PPP_IP4_CONFIG_INTERFACE,
+	                       g_variant_new_string (ifname));
+
+	g_variant_builder_add (&builder, "{sv}",
+	                       NM_PPP_IP4_CONFIG_ADDRESS,
+	                       g_variant_new_uint32 (opts.ouraddr));
+
+	/* Prefer the peer options remote address first, _unless_ pppd made the
+	 * address up, at which point prefer the local options remote address,
+	 * and if that's not right, use the made-up address as a last resort.
+	 */
+	if (peer_opts.hisaddr && (peer_opts.hisaddr != pppd_made_up_address)) {
+		g_variant_builder_add (&builder, "{sv}",
+		                       NM_PPP_IP4_CONFIG_GATEWAY,
+		                       g_variant_new_uint32 (peer_opts.hisaddr));
+	} else if (opts.hisaddr) {
+		g_variant_builder_add (&builder, "{sv}",
+		                       NM_PPP_IP4_CONFIG_GATEWAY,
+		                       g_variant_new_uint32 (opts.hisaddr));
+	} else if (peer_opts.hisaddr == pppd_made_up_address) {
+		/* As a last resort, use the made-up address */
+		g_variant_builder_add (&builder, "{sv}",
+		                       NM_PPP_IP4_CONFIG_GATEWAY,
+		                       g_variant_new_uint32 (peer_opts.ouraddr));
+	}
+
+	g_variant_builder_add (&builder, "{sv}",
+	                       NM_PPP_IP4_CONFIG_PREFIX,
+	                       g_variant_new_uint32 (32));
+
+	if (opts.dnsaddr[0] || opts.dnsaddr[1]) {
+		guint32 dns[2];
+		int len = 0;
+
+		if (opts.dnsaddr[0])
+			dns[len++] = opts.dnsaddr[0];
+		if (opts.dnsaddr[1])
+			dns[len++] = opts.dnsaddr[1];
+
+		g_variant_builder_add (&builder, "{sv}",
+		                       NM_PPP_IP4_CONFIG_DNS,
+		                       g_variant_new_fixed_array (G_VARIANT_TYPE_UINT32,
+		                                                  dns, len, sizeof (guint32)));
+	}
+
+	if (opts.winsaddr[0] || opts.winsaddr[1]) {
+		guint32 wins[2];
+		int len = 0;
+
+		if (opts.winsaddr[0])
+			wins[len++] = opts.winsaddr[0];
+		if (opts.winsaddr[1])
+			wins[len++] = opts.winsaddr[1];
+
+		g_variant_builder_add (&builder, "{sv}",
+		                       NM_PPP_IP4_CONFIG_WINS,
+		                       g_variant_new_fixed_array (G_VARIANT_TYPE_UINT32,
+		                                                  wins, len, sizeof (guint32)));
+	}
+
+	g_message ("nm-ppp-plugin: (%s): sending IPv4 config to NetworkManager...", __func__);
+
+	g_dbus_proxy_call (proxy,
+	                   "SetIp4Config",
+	                   g_variant_new ("(a{sv})", &builder),
+	                   G_DBUS_CALL_FLAGS_NONE, -1,
+	                   NULL,
+	                   NULL, NULL);
+}
+
+static GVariant *
+eui64_to_variant (eui64_t eui)
+{
+	guint64 iid;
+
+	G_STATIC_ASSERT (sizeof (iid) == sizeof (eui));
+
+	memcpy (&iid, &eui, sizeof (eui));
+	return g_variant_new_uint64 (iid);
+}
+
+static void
+nm_ip6_up (void *data, int arg)
+{
+	ipv6cp_options *ho = &ipv6cp_hisoptions[0];
+	ipv6cp_options *go = &ipv6cp_gotoptions[0];
+	GVariantBuilder builder;
+
+	g_return_if_fail (G_IS_DBUS_PROXY (proxy));
+
+	g_message ("nm-ppp-plugin: (%s): ip6-up event", __func__);
+
+	g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT);
+	g_variant_builder_add (&builder, "{sv}",
+	                       NM_PPP_IP6_CONFIG_INTERFACE,
+	                       g_variant_new_string (ifname));
+	g_variant_builder_add (&builder, "{sv}",
+	                       NM_PPP_IP6_CONFIG_OUR_IID,
+	                       eui64_to_variant (go->ourid));
+	g_variant_builder_add (&builder, "{sv}",
+	                       NM_PPP_IP6_CONFIG_PEER_IID,
+	                       eui64_to_variant (ho->hisid));
+
+	/* DNS is done via DHCPv6 or router advertisements */
+
+	g_message ("nm-ppp-plugin: (%s): sending IPv6 config to NetworkManager...", __func__);
+
+	g_dbus_proxy_call (proxy,
+	                   "SetIp6Config",
+	                   g_variant_new ("(a{sv})", &builder),
+	                   G_DBUS_CALL_FLAGS_NONE, -1,
+	                   NULL,
+	                   NULL, NULL);
+}
+
+static int
+get_chap_check (void)
+{
+	return 1;
+}
+
+static int
+get_pap_check (void)
+{
+	return 1;
+}
+
+static int
+get_credentials (char *username, char *password)
+{
+	const char *my_username = NULL;
+	const char *my_password = NULL;
+	size_t len;
+	GVariant *ret;
+	GError *err = NULL;
+
+	if (!password) {
+		/* pppd is checking pap support; return 1 for supported */
+		g_return_val_if_fail (username, -1);
+		return 1;
+	}
+
+	g_return_val_if_fail (username, -1);
+	g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), -1);
+
+	g_message ("nm-ppp-plugin: (%s): passwd-hook, requesting credentials...", __func__);
+
+	ret = g_dbus_proxy_call_sync (proxy,
+	                              "NeedSecrets",
+	                              NULL,
+	                              G_DBUS_CALL_FLAGS_NONE, -1,
+	                              NULL, &err);
+	if (!ret) {
+		g_warning ("nm-ppp-plugin: (%s): could not get secrets: %s",
+		           __func__,
+		           err->message);
+		g_error_free (err);
+		return -1;
+	}
+
+	g_message ("nm-ppp-plugin: (%s): got credentials from NetworkManager", __func__);
+
+	g_variant_get (ret, "(&s&s)", &my_username, &my_password);
+
+	if (my_username) {
+		len = strlen (my_username) + 1;
+		len = len < MAXNAMELEN ? len : MAXNAMELEN;
+
+		strncpy (username, my_username, len);
+		username[len - 1] = '\0';
+	}
+
+	if (my_password) {
+		len = strlen (my_password) + 1;
+		len = len < MAXSECRETLEN ? len : MAXSECRETLEN;
+
+		strncpy (password, my_password, len);
+		password[len - 1] = '\0';
+	}
+
+	g_variant_unref (ret);
+
+	return 1;
+}
+
+static void
+nm_exit_notify (void *data, int arg)
+{
+	g_return_if_fail (G_IS_DBUS_PROXY (proxy));
+
+	g_message ("nm-ppp-plugin: (%s): cleaning up", __func__);
+
+	g_object_unref (proxy);
+	proxy = NULL;
+}
+
+static void
+add_ip6_notifier (void)
+{
+	static struct notifier **notifier = NULL;
+	static gsize load_once = 0;
+
+	if (g_once_init_enter (&load_once)) {
+		void *handle = dlopen(NULL, RTLD_NOW | RTLD_GLOBAL);
+
+		if (handle) {
+			notifier = dlsym (handle, "ipv6_up_notifier");
+			dlclose (handle);
+		}
+		g_once_init_leave (&load_once, 1);
+	}
+	if (notifier)
+		add_notifier (notifier, nm_ip6_up, NULL);
+	else
+		g_message ("nm-ppp-plugin: no IPV6CP notifier support; IPv6 not available");
+}
+
+int
+plugin_init (void)
+{
+	GDBusConnection *bus;
+	GError *err = NULL;
+
+	nm_g_type_init ();
+
+	g_message ("nm-ppp-plugin: (%s): initializing", __func__);
+
+	bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &err);
+	if (!bus) {
+		g_warning ("nm-pppd-plugin: (%s): couldn't connect to system bus: %s",
+		           __func__, err->message);
+		g_error_free (err);
+		return -1;
+	}
+
+	/* NM passes in the object path of the corresponding PPPManager
+	 * object as the 'ipparam' argument to pppd.
+	 */
+	proxy = g_dbus_proxy_new_sync (bus,
+	                               G_DBUS_PROXY_FLAGS_NONE,
+	                               NULL,
+	                               NM_DBUS_SERVICE,
+	                               ipparam,
+	                               NM_DBUS_INTERFACE_PPP,
+	                               NULL, &err);
+	g_object_unref (bus);
+
+	if (!proxy) {
+		g_warning ("nm-pppd-plugin: (%s): couldn't create D-Bus proxy: %s",
+		           __func__, err->message);
+		g_error_free (err);
+		return -1;
+	}
+
+	chap_passwd_hook = get_credentials;
+	chap_check_hook = get_chap_check;
+	pap_passwd_hook = get_credentials;
+	pap_check_hook = get_pap_check;
+
+	add_notifier (&phasechange, nm_phasechange, NULL);
+	add_notifier (&ip_up_notifier, nm_ip_up, NULL);
+	add_notifier (&exitnotify, nm_exit_notify, proxy);
+	add_ip6_notifier ();
+
+	return 0;
+}