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[NETFILTER]: {ip,ip6}t_LOG: print MARK value in log output 

Dump the mark value in log messages similar to nfnetlink_log. This
is useful for debugging complex setups where marks are used for
routing or traffic classification.

Signed-off-by: Patrick McHardy <kaber@trash.net>
hifive-unleashed-5.1
Patrick McHardy 2008-03-20 15:15:45 +01:00
parent b916f7d4b7
commit 36e2a1b0f7
2 changed files with 10 additions and 2 deletions
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6
net/ipv4/netfilter/ipt_LOG.c
View File

@ -338,12 +338,16 @@ static void dump_packet(const struct nf_loginfo *info,
if ((logflags & IPT_LOG_UID) && !iphoff && skb->sk) {
read_lock_bh(&skb->sk->sk_callback_lock);
if (skb->sk->sk_socket && skb->sk->sk_socket->file)
printk("UID=%u GID=%u",
printk("UID=%u GID=%u ",
skb->sk->sk_socket->file->f_uid,
skb->sk->sk_socket->file->f_gid);
read_unlock_bh(&skb->sk->sk_callback_lock);
}
/* Max length: 16 "MARK=0xFFFFFFFF " */
if (!iphoff && skb->mark)
printk("MARK=0x%x ", skb->mark);
/* Proto Max log string length */
/* IP: 40+46+6+11+127 = 230 */
/* TCP: 10+max(25,20+30+13+9+32+11+127) = 252 */

6
net/ipv6/netfilter/ip6t_LOG.c
View File

@ -363,11 +363,15 @@ static void dump_packet(const struct nf_loginfo *info,
if ((logflags & IP6T_LOG_UID) && recurse && skb->sk) {
read_lock_bh(&skb->sk->sk_callback_lock);
if (skb->sk->sk_socket && skb->sk->sk_socket->file)
printk("UID=%u GID=%u",
printk("UID=%u GID=%u ",
skb->sk->sk_socket->file->f_uid,
skb->sk->sk_socket->file->f_gid);
read_unlock_bh(&skb->sk->sk_callback_lock);
}
/* Max length: 16 "MARK=0xFFFFFFFF " */
if (!recurse && skb->mark)
printk("MARK=0x%x ", skb->mark);
}
static struct nf_loginfo default_loginfo = {