* Casting sock to inet_timewait_sock
@ 2011-01-14 14:47 Daniel Baluta
2011-01-14 14:49 ` Daniel Baluta
2011-01-14 21:23 ` Michael Blizek
0 siblings, 2 replies; 3+ messages in thread
From: Daniel Baluta @ 2011-01-14 14:47 UTC (permalink / raw)
To: kernelnewbies
Hello,
When casting sock to inet_timewait_sock ([1]) it is assumed
that sock points to a structure of type inet_timewait_sock.
Is there a way to check if a sock struct wraps around
a inet_timewait_sock struct?
thanks,
Daniel.
[1] http://lxr.linux.no/linux+v2.6.37/include/net/inet_timewait_sock.h#L189
^ permalink raw reply [flat|nested] 3+ messages in thread
* Casting sock to inet_timewait_sock
2011-01-14 14:47 Casting sock to inet_timewait_sock Daniel Baluta
@ 2011-01-14 14:49 ` Daniel Baluta
2011-01-14 21:23 ` Michael Blizek
1 sibling, 0 replies; 3+ messages in thread
From: Daniel Baluta @ 2011-01-14 14:49 UTC (permalink / raw)
To: kernelnewbies
Hello,
When casting sock to inet_timewait_sock ([1]) it is assumed
that sock points to a structure of type inet_timewait_sock.
Is there a way to check if a sock struct wraps around
a inet_timewait_sock struct?
thanks,
Daniel.
[1] http://lxr.linux.no/linux+v2.6.37/include/net/inet_timewait_sock.h#L189
^ permalink raw reply [flat|nested] 3+ messages in thread
* Casting sock to inet_timewait_sock
2011-01-14 14:47 Casting sock to inet_timewait_sock Daniel Baluta
2011-01-14 14:49 ` Daniel Baluta
@ 2011-01-14 21:23 ` Michael Blizek
1 sibling, 0 replies; 3+ messages in thread
From: Michael Blizek @ 2011-01-14 21:23 UTC (permalink / raw)
To: kernelnewbies
Hi!
On 16:47 Fri 14 Jan , Daniel Baluta wrote:
> Hello,
>
> When casting sock to inet_timewait_sock ([1]) it is assumed
> that sock points to a structure of type inet_timewait_sock.
>
> Is there a way to check if a sock struct wraps around
> a inet_timewait_sock struct?
By looking at the callers of inet_twsk it seems as if sk->sk_state has to be
either TCP_TIME_WAIT or DCCP_TIME_WAIT. It even seems as if both actually have
the same value (see
http://lxr.linux.no/linux+v2.6.36/include/linux/dccp.h#L256 ).
-Michi
--
programing a layer 3+4 network protocol for mesh networks
see http://michaelblizek.twilightparadox.com
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-01-14 14:47 Casting sock to inet_timewait_sock Daniel Baluta
2011-01-14 14:49 ` Daniel Baluta
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