X-Git-Url: https://git.distorted.org.uk/~mdw/secnet/blobdiff_plain/98208aeb56256dfc919077a00b10328be466759c..59a5b098bd17ae3202115e3436343ec6e58da1fb:/netlink.c

diff --git a/netlink.c b/netlink.c
index 9556e60..83b470e 100644
--- a/netlink.c
+++ b/netlink.c
@@ -487,8 +487,8 @@ static bool_t netlink_check(struct netlink *st, struct buffer_if *buf,
     struct iphdr *iph=(struct iphdr *)buf->start;
     int32_t len;
 
-    if (iph->ihl < 5) BAD("ihl %u",iph->ihl);
     if (iph->version != 4) BAD("version %u",iph->version);
+    if (iph->ihl < 5) BAD("ihl %u",iph->ihl);
     if (buf->size < iph->ihl*4) BAD("size %"PRId32"<%u*4",buf->size,iph->ihl);
     if (ip_fast_csum((uint8_t *)iph, iph->ihl)!=0) BAD("csum");
     len=ntohs(iph->tot_len);