From: Jeremy Kerr <jk@ozlabs.org>
Date: Thu, 19 Sep 2013 13:48:32 +0000 (+0800)
Subject: discover/network: ignore devices with zero MTU
X-Git-Tag: v1.0.0~490
X-Git-Url: https://git.ozlabs.org/?p=petitboot;a=commitdiff_plain;h=3325aa09f31b4cc145ab8abfed44ab5f3b6a7b96

discover/network: ignore devices with zero MTU

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
---

diff --git a/discover/network.c b/discover/network.c
index 28e3a29..2d606e4 100644
--- a/discover/network.c
+++ b/discover/network.c
@@ -325,6 +325,7 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
 	struct interface *interface;
 	struct ifinfomsg *info;
 	struct rtattr *attr;
+	unsigned int mtu;
 	uint8_t ifaddr[6];
 	char ifname[IFNAMSIZ+1];
 	int attrlen, type;
@@ -355,13 +356,17 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
 			strncpy(ifname, data, IFNAMSIZ);
 			have_ifname = true;
 			break;
+
+		case IFLA_MTU:
+			mtu = *(unsigned int *)data;
+			break;
 		}
 	}
 
 	if (!have_ifaddr || !have_ifname)
 		return -1;
 
-	if (type == RTM_DELLINK) {
+	if (type == RTM_DELLINK || mtu == 0) {
 		interface = find_interface_by_ifindex(network, info->ifi_index);
 		if (!interface)
 			return 0;