X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fnetwork.c;h=8ca4561614f866fc1c45ef77f44ffc03c8c7fd85;hp=c3cf30ac973b54f875d56356fc58910190240e0d;hb=722e64564e436a0491563c9f57a49dfee5c50dd9;hpb=3d7ccc23cb49d5f8e371dcf6580b78bb78b77046

diff --git a/discover/network.c b/discover/network.c
index c3cf30a..8ca4561 100644
--- a/discover/network.c
+++ b/discover/network.c
@@ -214,13 +214,12 @@ static int network_send_link_query(struct network *network)
 	return 0;
 }
 
-static void add_interface(struct network *network,
+static void create_interface_dev(struct network *network,
 		struct interface *interface)
 {
 	char *uuid = mac_bytes_to_string(interface, interface->hwaddr,
 						sizeof(interface->hwaddr));
 
-	list_add(&network->interfaces, &interface->list);
 	interface->dev = discover_device_create(network->handler, uuid,
 						interface->name);
 	interface->dev->device->type = DEVICE_TYPE_NETWORK;
@@ -498,7 +497,7 @@ static void configure_interface(struct network *network,
 static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
 {
 	bool have_ifaddr, have_ifname;
-	struct interface *interface;
+	struct interface *interface, *tmp;
 	struct ifinfomsg *info;
 	struct rtattr *attr;
 	unsigned int mtu;
@@ -563,7 +562,18 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
 		interface->state = IFSTATE_NEW;
 		memcpy(interface->hwaddr, ifaddr, sizeof(interface->hwaddr));
 		strncpy(interface->name, ifname, sizeof(interface->name) - 1);
-		add_interface(network, interface);
+
+		list_for_each_entry(&network->interfaces, tmp, list)
+			if (memcmp(interface->hwaddr, tmp->hwaddr,
+				   sizeof(interface->hwaddr)) == 0) {
+				pb_log("%s: %s has duplicate MAC address, ignoring\n",
+				       __func__, interface->name);
+				talloc_free(interface);
+				return -1;
+			}
+
+		list_add(&network->interfaces, &interface->list);
+		create_interface_dev(network, interface);
 	}
 
 	/* A repeated RTM_NEWLINK can represent an interface name change */
@@ -582,6 +592,9 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
 				interface->hwaddr, interface->name,
 				info->ifi_flags & IFF_LOWER_UP);
 
+	if (!interface->dev)
+		create_interface_dev(network, interface);
+
 	configure_interface(network, interface,
 			info->ifi_flags & IFF_UP,
 			info->ifi_flags & IFF_LOWER_UP);