raw: fix a typo in raw_icmp_error()

I accidentally broke IPv4 traceroute, by swapping iph->saddr
and iph->daddr.

Probably because raw_icmp_error() and raw_v4_input()
use different order for iph->saddr and iph->daddr.

Fixes: ba44f8182ec2 ("raw: use more conventional iterators")
Reported-by: John Sperbeck <jsperbeck@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220623193540.2851799-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 0273899..006c1f0 100644 (file)
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -278,7 +278,7 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
        sk_nulls_for_each(sk, hnode, hlist) {
                iph = (const struct iphdr *)skb->data;
                if (!raw_v4_match(net, sk, iph->protocol,
-                                 iph->saddr, iph->daddr, dif, sdif))
+                                 iph->daddr, iph->saddr, dif, sdif))
                        continue;
                raw_err(sk, skb, info);
        }