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Date:	Wed, 06 Jun 2007 12:13:38 +0200
From:	Ariane Keller <>
Subject: [GENETLINK] get pid from userspace


I have a user space program which "connects" to different kernel 
modules with generic netlink. Each module provides its own generic 
netlink family.

For each module to "connect" to I create a socket and bind it:
struct sockaddr_nl addr;
memset(&addr, 0, sizeof(addr));
bind(fd, (struct sockaddr *)&addr, sizeof(addr));

As far as I understand, this lets the generic netlink controller choose 
a unique pid, which shows up in the kernel module in the callback 
function as genl_info.snd_pid.

Is it possible to get this pid in userspace (without sending a message 
to the kernel module)?



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