diff options
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 94abee8cf563..fe9f604ed1e2 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -50,6 +50,7 @@ * a single port at the same time. */ +#define pr_fmt(fmt) "TCP: " fmt #include <linux/bottom_half.h> #include <linux/types.h> @@ -876,8 +877,7 @@ int tcp_syn_flood_action(struct sock *sk, lopt = inet_csk(sk)->icsk_accept_queue.listen_opt; if (!lopt->synflood_warned) { lopt->synflood_warned = 1; - pr_info("%s: Possible SYN flooding on port %d. %s. " - " Check SNMP counters.\n", + pr_info("%s: Possible SYN flooding on port %d. %s. Check SNMP counters.\n", proto, ntohs(tcp_hdr(skb)->dest), msg); } return want_cookie; @@ -927,7 +927,8 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk, /* caller either holds rcu_read_lock() or socket lock */ md5sig = rcu_dereference_check(tp->md5sig_info, - sock_owned_by_user(sk)); + sock_owned_by_user(sk) || + lockdep_is_held(&sk->sk_lock.slock)); if (!md5sig) return NULL; #if IS_ENABLED(CONFIG_IPV6) @@ -1226,10 +1227,10 @@ static int tcp_v4_inbound_md5_hash(struct sock *sk, const struct sk_buff *skb) if (genhash || memcmp(hash_location, newhash, 16) != 0) { if (net_ratelimit()) { - printk(KERN_INFO "MD5 Hash failed for (%pI4, %d)->(%pI4, %d)%s\n", - &iph->saddr, ntohs(th->source), - &iph->daddr, ntohs(th->dest), - genhash ? " tcp_v4_calc_md5_hash failed" : ""); + pr_info("MD5 Hash failed for (%pI4, %d)->(%pI4, %d)%s\n", + &iph->saddr, ntohs(th->source), + &iph->daddr, ntohs(th->dest), + genhash ? " tcp_v4_calc_md5_hash failed" : ""); } return 1; } @@ -1398,7 +1399,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) * to destinations, already remembered * to the moment of synflood. */ - LIMIT_NETDEBUG(KERN_DEBUG "TCP: drop open request from %pI4/%u\n", + LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("drop open request from %pI4/%u\n"), &saddr, ntohs(tcp_hdr(skb)->source)); goto drop_and_release; } |