Imported Upstream version 0.9.10.0 upstream/0.9.10.0

1 files changed, 191 insertions, 0 deletions

diff --git a/src/rdisc/nm-rdisc.c b/src/rdisc/nm-rdisc.c
new file mode 100644
index 00000000..1682924c
--- /dev/null
+++ b/src/rdisc/nm-rdisc.c
@@ -0,0 +1,191 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/* nm-rdisc.c - Perform IPv6 router discovery
+ *
+ * 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, 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) 2013 Red Hat, Inc.
+ */
+
+#include <stdlib.h>
+#include <arpa/inet.h>
+
+#include "nm-rdisc.h"
+
+#include "nm-logging.h"
+#include "nm-utils.h"
+
+#define debug(...) nm_log_dbg (LOGD_IP6, __VA_ARGS__)
+
+G_DEFINE_TYPE (NMRDisc, nm_rdisc, G_TYPE_OBJECT)
+
+enum {
+	CONFIG_CHANGED,
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+/******************************************************************/
+
+void
+nm_rdisc_set_lladdr (NMRDisc *rdisc, const char *addr, size_t addrlen)
+{
+	if (rdisc->lladdr)
+		g_bytes_unref (rdisc->lladdr);
+	rdisc->lladdr = addr ? g_bytes_new (addr, addrlen) : NULL;
+}
+
+void
+nm_rdisc_start (NMRDisc *rdisc)
+{
+	NMRDiscClass *klass = NM_RDISC_GET_CLASS (rdisc);
+
+	g_assert (klass->start);
+
+	debug ("(%s): starting router discovery: %d", rdisc->ifname, rdisc->ifindex);
+
+	if (klass->start)
+		klass->start (rdisc);
+}
+
+#define CONFIG_MAP_MAX_STR 7
+
+static void
+config_map_to_string (NMRDiscConfigMap map, char *p)
+{
+	if (map & NM_RDISC_CONFIG_DHCP_LEVEL)
+		*p++ = 'd';
+	if (map & NM_RDISC_CONFIG_GATEWAYS)
+		*p++ = 'G';
+	if (map & NM_RDISC_CONFIG_ADDRESSES)
+		*p++ = 'A';
+	if (map & NM_RDISC_CONFIG_ROUTES)
+		*p++ = 'R';
+	if (map & NM_RDISC_CONFIG_DNS_SERVERS)
+		*p++ = 'S';
+	if (map & NM_RDISC_CONFIG_DNS_DOMAINS)
+		*p++ = 'D';
+	*p = '\0';
+}
+
+static const char *
+dhcp_level_to_string (NMRDiscDHCPLevel dhcp_level)
+{
+	switch (dhcp_level) {
+	case NM_RDISC_DHCP_LEVEL_NONE:
+		return "none";
+	case NM_RDISC_DHCP_LEVEL_OTHERCONF:
+		return "otherconf";
+	case NM_RDISC_DHCP_LEVEL_MANAGED:
+		return "managed";
+	default:
+		return "INVALID";
+	}
+}
+
+#define expiry(item) (item->timestamp + item->lifetime)
+
+static void
+config_changed (NMRDisc *rdisc, NMRDiscConfigMap changed)
+{
+	int i;
+	char changedstr[CONFIG_MAP_MAX_STR];
+	char addrstr[INET6_ADDRSTRLEN];
+
+	if (nm_logging_enabled (LOGL_DEBUG, LOGD_IP6)) {
+		config_map_to_string (changed, changedstr);
+		debug ("(%s): router discovery configuration changed [%s]:", rdisc->ifname, changedstr);
+		debug ("  dhcp-level %s", dhcp_level_to_string (rdisc->dhcp_level));
+		for (i = 0; i < rdisc->gateways->len; i++) {
+			NMRDiscGateway *gateway = &g_array_index (rdisc->gateways, NMRDiscGateway, i);
+
+			inet_ntop (AF_INET6, &gateway->address, addrstr, sizeof (addrstr));
+			debug ("  gateway %s pref %d exp %u", addrstr, gateway->preference, expiry (gateway));
+		}
+		for (i = 0; i < rdisc->addresses->len; i++) {
+			NMRDiscAddress *address = &g_array_index (rdisc->addresses, NMRDiscAddress, i);
+
+			inet_ntop (AF_INET6, &address->address, addrstr, sizeof (addrstr));
+			debug ("  address %s exp %u", addrstr, expiry (address));
+		}
+		for (i = 0; i < rdisc->routes->len; i++) {
+			NMRDiscRoute *route = &g_array_index (rdisc->routes, NMRDiscRoute, i);
+
+			inet_ntop (AF_INET6, &route->network, addrstr, sizeof (addrstr));
+			debug ("  route %s/%d via %s pref %d exp %u", addrstr, route->plen,
+				   nm_utils_inet6_ntop (&route->gateway, NULL), route->preference,
+				   expiry (route));
+		}
+		for (i = 0; i < rdisc->dns_servers->len; i++) {
+			NMRDiscDNSServer *dns_server = &g_array_index (rdisc->dns_servers, NMRDiscDNSServer, i);
+
+			inet_ntop (AF_INET6, &dns_server->address, addrstr, sizeof (addrstr));
+			debug ("  dns_server %s exp %u", addrstr, expiry (dns_server));
+		}
+		for (i = 0; i < rdisc->dns_domains->len; i++) {
+			NMRDiscDNSDomain *dns_domain = &g_array_index (rdisc->dns_domains, NMRDiscDNSDomain, i);
+
+			debug ("  dns_domain %s exp %u", dns_domain->domain, expiry (dns_domain));
+		}
+	}
+}
+
+/******************************************************************/
+
+static void
+nm_rdisc_init (NMRDisc *rdisc)
+{
+	rdisc->gateways = g_array_new (FALSE, FALSE, sizeof (NMRDiscGateway));
+	rdisc->addresses = g_array_new (FALSE, FALSE, sizeof (NMRDiscAddress));
+	rdisc->routes = g_array_new (FALSE, FALSE, sizeof (NMRDiscRoute));
+	rdisc->dns_servers = g_array_new (FALSE, FALSE, sizeof (NMRDiscDNSServer));
+	rdisc->dns_domains = g_array_new (FALSE, FALSE, sizeof (NMRDiscDNSDomain));
+	rdisc->lladdr = NULL;
+	rdisc->hop_limit = 64;
+}
+
+static void
+nm_rdisc_finalize (GObject *object)
+{
+	NMRDisc *rdisc = NM_RDISC (object);
+
+	g_free (rdisc->ifname);
+	g_array_unref (rdisc->gateways);
+	g_array_unref (rdisc->addresses);
+	g_array_unref (rdisc->routes);
+	g_array_unref (rdisc->dns_servers);
+	g_array_unref (rdisc->dns_domains);
+
+	if (rdisc->lladdr)
+		g_bytes_unref (rdisc->lladdr);
+}
+
+static void
+nm_rdisc_class_init (NMRDiscClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->finalize = nm_rdisc_finalize;
+
+	klass->config_changed = config_changed;
+
+	signals[CONFIG_CHANGED] = g_signal_new (
+			NM_RDISC_CONFIG_CHANGED,
+			G_OBJECT_CLASS_TYPE (klass),
+			G_SIGNAL_RUN_FIRST,
+			G_STRUCT_OFFSET (NMRDiscClass, config_changed),
+			NULL, NULL, NULL,
+			G_TYPE_NONE, 1, G_TYPE_INT);
+}