Re: [bug] networking broke, ssh: connect to port 22: Protocol error
From: David Miller <davem@davemloft.net>
Date: 2008-02-06 11:42:28
Also in:
lkml
Subsystem:
networking [general], networking [tcp], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Neal Cardwell, Linus Torvalds
From: Ingo Molnar <redacted> Date: Wed, 6 Feb 2008 12:38:29 +0100
randconfig qa on x86.git ran into the following new networking related problem on latest -git: with the attached .config the testbox comes up but cannot establish any TCP connections due to -ENOPROTO in sys_connect().
Make sure you have the following fix in your tree.
It might be the cause.
commit 5d8c0aa9433b09387d9021358baef7939f9b32c4
Author: Pavel Emelyanov [off-list ref]
Date: Tue Feb 5 03:14:44 2008 -0800
[INET]: Fix accidentally broken inet(6)_hash_connect's port offset calculations.
The port offset calculations depend on the protocol family, but, as
Adrian noticed, I broke this logic with the commit
5ee31fc1ecdcbc234c8c56dcacef87c8e09909d8
[INET]: Consolidate inet(6)_hash_connect.
Return this logic back, by passing the port offset directly into the
consolidated function.
Signed-off-by: Pavel Emelyanov [off-list ref]
Noticed-by: Adrian Bunk [off-list ref]
Signed-off-by: David S. Miller [off-list ref]
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 48ac620..97dc35a 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h@@ -389,7 +389,7 @@ static inline struct sock *inet_lookup(struct net *net, } extern int __inet_hash_connect(struct inet_timewait_death_row *death_row, - struct sock *sk, + struct sock *sk, u32 port_offset, int (*check_established)(struct inet_timewait_death_row *, struct sock *, __u16, struct inet_timewait_sock **), void (*hash)(struct sock *sk));
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 90f422c..9cac6c0 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c@@ -398,7 +398,7 @@ out: EXPORT_SYMBOL_GPL(inet_unhash); int __inet_hash_connect(struct inet_timewait_death_row *death_row, - struct sock *sk, + struct sock *sk, u32 port_offset, int (*check_established)(struct inet_timewait_death_row *, struct sock *, __u16, struct inet_timewait_sock **), void (*hash)(struct sock *sk))
@@ -413,7 +413,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, if (!snum) { int i, remaining, low, high, port; static u32 hint; - u32 offset = hint + inet_sk_port_offset(sk); + u32 offset = hint + port_offset; struct hlist_node *node; struct inet_timewait_sock *tw = NULL;
@@ -502,7 +502,7 @@ EXPORT_SYMBOL_GPL(__inet_hash_connect); int inet_hash_connect(struct inet_timewait_death_row *death_row, struct sock *sk) { - return __inet_hash_connect(death_row, sk, + return __inet_hash_connect(death_row, sk, inet_sk_port_offset(sk), __inet_check_established, __inet_hash_nolisten); }
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 43f3993..99fd25f 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c@@ -236,7 +236,7 @@ static inline u32 inet6_sk_port_offset(const struct sock *sk) int inet6_hash_connect(struct inet_timewait_death_row *death_row, struct sock *sk) { - return __inet_hash_connect(death_row, sk, + return __inet_hash_connect(death_row, sk, inet6_sk_port_offset(sk), __inet6_check_established, __inet6_hash); }