From: Roy Marples <roy@marples.name>
Date: Tue, 28 Jul 2015 21:32:13 +0000 (+0000)
Subject: Extract the route MTU for Linux.
X-Git-Tag: v6.9.2~21
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d5e7dff51b6ecd34e8ce8754e3b8a4bbf3d98c0;p=thirdparty%2Fdhcpcd.git

Extract the route MTU for Linux.
---

diff --git a/if-linux.c b/if-linux.c
index 727c2c94..e5340b97 100644
--- a/if-linux.c
+++ b/if-linux.c
@@ -437,7 +437,25 @@ if_copyrt(struct dhcpcd_ctx *ctx, struct rt *rt, struct nlmsghdr *nlm)
 		case RTA_PRIORITY:
 			rt->metric = *(unsigned int *)RTA_DATA(rta);
 			break;
+		case RTA_METRICS:
+		{
+			struct rtattr *r2;
+			size_t l2;
+
+			l2 = rta->rta_len;
+			r2 = (struct rtattr *)RTA_DATA(rta);
+			while (RTA_OK(r2, l2)) {
+				switch (r2->rta_type) {
+				case RTAX_MTU:
+					rt->mtu = *(unsigned int *)RTA_DATA(r2);
+					break;
+				}
+				r2 = RTA_NEXT(r2, l2);
+			}
+			break;
+		}
 		}
+
 		rta = RTA_NEXT(rta, len);
 	}
 
@@ -498,6 +516,23 @@ if_copyrt6(struct dhcpcd_ctx *ctx, struct rt6 *rt, struct nlmsghdr *nlm)
 		case RTA_PRIORITY:
 			rt->metric = *(unsigned int *)RTA_DATA(rta);
 			break;
+		case RTA_METRICS:
+		{
+			struct rtattr *r2;
+			size_t l2;
+
+			l2 = rta->rta_len;
+			r2 = (struct rtattr *)RTA_DATA(rta);
+			while (RTA_OK(r2, l2)) {
+				switch (r2->rta_type) {
+				case RTAX_MTU:
+					rt->mtu = *(unsigned int *)RTA_DATA(r2);
+					break;
+				}
+				r2 = RTA_NEXT(r2, l2);
+			}
+			break;
+		}
 		}
 		rta = RTA_NEXT(rta, len);
 	}