From b96a8bc5c18d6f6b4a449b9d25e3a662228d86a3 Mon Sep 17 00:00:00 2001 From: Andrey Vagin Date: Thu, 14 Mar 2013 10:40:48 +0100 Subject: [PATCH] netlink.7: Add a note about broadcast messages to multiple groups Signed-off-by: Andrey Vagin Signed-off-by: Michael Kerrisk --- man7/netlink.7 | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/man7/netlink.7 b/man7/netlink.7 index 42c90ad4a..f57785166 100644 --- a/man7/netlink.7 +++ b/man7/netlink.7 @@ -8,7 +8,7 @@ .\" Based on the original comments from Alexey Kuznetsov .\" Modified 2005-12-27 by Hasso Tepper .\" $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