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ss: fix autobound filter

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Fixes following error. We currently provide garbage data to kernel, that
can abort the validation process or produce unexpected results.

$ ss -a autobound
State      Recv-Q Send-Q      Local Address:Port          Peer Address:Port
TCPDIAG answers: Invalid argument

After patch:

$ misc/ss -a autobound
State      Recv-Q Send-Q      Local Address:Port          Peer Address:Port
LISTEN     0      128                     *:44624                    *:*
ESTAB      0      0            192.168.1.21:47141        74.125.79.109:imaps

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
This commit is contained in:
Eric Dumazet 2011-06-20 14:31:51 -07:00 committed by Stephen Hemminger
parent bcd7abddd4
commit df39de8d24
1 changed files with 1 additions and 1 deletions
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2
misc/ss.c
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@ -803,7 +803,7 @@ static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
{
if (!(*bytecode=malloc(4))) abort();
((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
return 8;
return 4;
}
case SSF_DCOND:
case SSF_SCOND: