Messages in this thread | | | Date | Tue, 27 Dec 2005 09:26:42 +0100 (MET) | From | Jan Engelhardt <> | Subject | Re: How to obtain process ID that created a packet |
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>> The question is: when do you test for the PID? You would have to do it >> within send(), because anywhere else, you do not know. A socket may be >> shared among multiple processes (most simple way: fork()). > >I'm hooking in NF_IP_LOCAL_OUT of netfilter code using nf_register_hook() function.
In sys_send(), I would have said you could use "current", but in netfilter I can't tell exactly whether it is going to work on SMP.
Check net/ipv4/netfilter/ipt_owner.c, it provides a way to match packets vs pids, but it's not easy to find out.
Jan Engelhardt -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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