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authorShaun Pereira <pereira.shaun@gmail.com>2006-01-06 16:11:35 -0500
committerDavid S. Miller <davem@davemloft.net>2006-01-06 16:11:35 -0500
commita20a8554796bc4e28879beabd0db4bf3ce77b686 (patch)
tree2fdc866d3fe722e6eea6b6bb4017b9ab53927a62 /net/x25/af_x25.c
parent4bad4dc919573dbe9a5b41dd9edff279e99822d7 (diff)
[X25]: Fix for broken x25 module.
When a user-space server application calls bind on a socket, then in kernel space this bound socket is considered 'x25-linked' and the SOCK_ZAPPED flag is unset.(As in x25_bind()/af_x25.c). Now when a user-space client application attempts to connect to the server on the listening socket, if the kernel accepts this in-coming call, then it returns a new socket to userland and attempts to reply to the caller. The reply/x25_sendmsg() will fail, because the new socket created on call-accept has its SOCK_ZAPPED flag set by x25_make_new(). (sock_init_data() called by x25_alloc_socket() called by x25_make_new() sets the flag to SOCK_ZAPPED)). Fix: Using the sock_copy_flag() routine available in sock.h fixes this. Tested on 32 and 64 bit kernels with x25 over tcp. Signed-off-by: Shaun Pereira <pereira.shaun@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/x25/af_x25.c')
-rw-r--r--net/x25/af_x25.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 16459c7f54b2..bfabaf9cba87 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -540,12 +540,7 @@ static struct sock *x25_make_new(struct sock *osk)
540 sk->sk_state = TCP_ESTABLISHED; 540 sk->sk_state = TCP_ESTABLISHED;
541 sk->sk_sleep = osk->sk_sleep; 541 sk->sk_sleep = osk->sk_sleep;
542 sk->sk_backlog_rcv = osk->sk_backlog_rcv; 542 sk->sk_backlog_rcv = osk->sk_backlog_rcv;
543 543 sock_copy_flags(sk, osk);
544 if (sock_flag(osk, SOCK_ZAPPED))
545 sock_set_flag(sk, SOCK_ZAPPED);
546
547 if (sock_flag(osk, SOCK_DBG))
548 sock_set_flag(sk, SOCK_DBG);
549 544
550 ox25 = x25_sk(osk); 545 ox25 = x25_sk(osk);
551 x25->t21 = ox25->t21; 546 x25->t21 = ox25->t21;