From 4b3418fba0fe819197e3359d5ddbef84ba2c59de Mon Sep 17 00:00:00 2001 From: =?utf8?q?Bj=C3=B8rn=20Mork?= Date: Sat, 24 Oct 2015 14:00:20 +0200 Subject: [PATCH] ipv6: icmp: include addresses in debug messages MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Messages like "icmp6_send: no reply to icmp error" are close to useless. Adding source and destination addresses to provide some more clue. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- net/ipv6/icmp.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index efb1c00f2270..36c5a98b0472 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -453,7 +453,8 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) * and anycast addresses will be checked later. */ if ((addr_type == IPV6_ADDR_ANY) || (addr_type & IPV6_ADDR_MULTICAST)) { - net_dbg_ratelimited("icmp6_send: addr_any/mcast source\n"); + net_dbg_ratelimited("icmp6_send: addr_any/mcast source [%pI6c > %pI6c]\n", + &hdr->saddr, &hdr->daddr); return; } @@ -461,7 +462,8 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) * Never answer to a ICMP packet. */ if (is_ineligible(skb)) { - net_dbg_ratelimited("icmp6_send: no reply to icmp error\n"); + net_dbg_ratelimited("icmp6_send: no reply to icmp error [%pI6c > %pI6c]\n", + &hdr->saddr, &hdr->daddr); return; } @@ -513,7 +515,8 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) len = skb->len - msg.offset; len = min_t(unsigned int, len, IPV6_MIN_MTU - sizeof(struct ipv6hdr) - sizeof(struct icmp6hdr)); if (len < 0) { - net_dbg_ratelimited("icmp: len problem\n"); + net_dbg_ratelimited("icmp: len problem [%pI6c > %pI6c]\n", + &hdr->saddr, &hdr->daddr); goto out_dst_release; } @@ -785,7 +788,8 @@ static int icmpv6_rcv(struct sk_buff *skb) if (type & ICMPV6_INFOMSG_MASK) break; - net_dbg_ratelimited("icmpv6: msg of unknown type\n"); + net_dbg_ratelimited("icmpv6: msg of unknown type [%pI6c > %pI6c]\n", + saddr, daddr); /* * error of unknown type. -- 2.20.1