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netlink.7: Add a note about broadcast messages to multiple groups 

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Andrey Vagin 2013-03-14 10:40:48 +01:00 committed by Michael Kerrisk
parent 231c55393d
commit b96a8bc5c1
1 changed files with 4 additions and 1 deletions
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@ -8,7 +8,7 @@
.\" Based on the original comments from Alexey Kuznetsov
.\" Modified 2005-12-27 by Hasso Tepper <hasso@estpak.ee>
.\" $Id: netlink.7,v 1.8 2000/06/22 13:23:00 ak Exp $
.TH NETLINK 7 2012-08-05 "Linux" "Linux Programmer's Manual"
.TH NETLINK 7 2013-03-15 "Linux" "Linux Programmer's Manual"
.SH NAME
netlink \- communication between kernel and user space (AF_NETLINK)
.SH SYNOPSIS
@ -350,6 +350,9 @@ or does a
Only processes with an effective UID of 0 or the
.B CAP_NET_ADMIN
capability may send or listen to a netlink multicast group.
Since Linux 2.6.13,
.\" commit d629b836d151d43332492651dd841d32e57ebe3b
messages can't be broadcast to multiple groups.
Any replies to a message received for a multicast group should be
sent back to the sending PID and the multicast group.
Some Linux kernel subsystems may additionally allow other users