Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
---
net/ipv4/tcp_input.c | 25 +++++++++++++++++++------
net/ipv4/tcp_timer.c | 12 ++++++++++--
2 files changed, 29 insertions(+), 8 deletions(-)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index af2ec61..032ffdf 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2280,12 +2280,25 @@ static void DBGUNDO(struct sock *sk, const char *msg)
struct tcp_sock *tp = tcp_sk(sk);
struct inet_sock *inet = inet_sk(sk);
- printk(KERN_DEBUG "Undo %s " NIPQUAD_FMT "/%u c%u l%u ss%u/%u p%u\n",
- msg,
- NIPQUAD(inet->daddr), ntohs(inet->dport),
- tp->snd_cwnd, tcp_left_out(tp),
- tp->snd_ssthresh, tp->prior_ssthresh,
- tp->packets_out);
+ if (sk->sk_family == AF_INET) {
+ printk(KERN_DEBUG "Undo %s " NIPQUAD_FMT "/%u c%u l%u ss%u/%u p%u\n",
+ msg,
+ NIPQUAD(inet->daddr), ntohs(inet->dport),
+ tp->snd_cwnd, tcp_left_out(tp),
+ tp->snd_ssthresh, tp->prior_ssthresh,
+ tp->packets_out);
+ }
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ else if (sk->sk_family == AF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
+ printk(KERN_DEBUG "Undo %s " NIP6_FMT "/%u c%u l%u ss%u/%u p%u\n",
+ msg,
+ NIP6(np->daddr), ntohs(inet->dport),
+ tp->snd_cwnd, tcp_left_out(tp),
+ tp->snd_ssthresh, tp->prior_ssthresh,
+ tp->packets_out);
+ }
+#endif
}
#else
#define DBGUNDO(x...) do { } while (0)
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index e588d6d..4de68cf 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -299,12 +299,20 @@ static void tcp_retransmit_timer(struct sock *sk)
* we cannot allow such beasts to hang infinitely.
*/
#ifdef TCP_DEBUG
- if (1) {
- struct inet_sock *inet = inet_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
+ if (sk->sk_family == AF_INET) {
LIMIT_NETDEBUG(KERN_DEBUG "TCP: Treason uncloaked! Peer " NIPQUAD_FMT ":%u/%u shrinks window %u:%u. Repaired.\n",
NIPQUAD(inet->daddr), ntohs(inet->dport),
inet->num, tp->snd_una, tp->snd_nxt);
}
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ else if (sk->sk_family == AF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
+ LIMIT_NETDEBUG(KERN_DEBUG "TCP: Treason uncloaked! Peer " NIP6_FMT ":%u/%u shrinks window %u:%u. Repaired.\n",
+ NIP6(np->daddr), ntohs(inet->dport),
+ inet->num, tp->snd_una, tp->snd_nxt);
+ }
+#endif
#endif
if (tcp_time_stamp - tp->rcv_tstamp > TCP_RTO_MAX) {
tcp_write_err(sk);
--
1.4.4.4
--
YOSHIFUJI Hideaki @ USAGI Project <yoshfuji@linux-ipv6.org>
GPG-FP : 9022 65EB 1ECF 3AD1 0BDF 80D8 4807 F894 E062 0EEA
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