netdev - IPv6: Bug in net-next

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Date:	Wed, 8 Jan 2014 05:02:15 -0800 (PST)
From:	François-Xavier Le Bail <fx.lebail@...oo.com>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net
Subject: IPv6: Bug in net-next

Hello,

I think there is a bug in actual net-next.

When I execute this code and press Crtl-C, all the IPv6 Link-Layer addresses are deleted.

This happened between c1ddf295f5183a5189196a8035546842caa2055a and HEAD.

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <net/if.h>

int main (int argc, char **argv)
{
  struct ipv6_mreq mreq = { 0 };
  int sockfd1 = socket (AF_INET6, SOCK_DGRAM, 0);

  inet_pton (AF_INET6, "2a01:999::1", &mreq.ipv6mr_multiaddr);
  mreq.ipv6mr_interface = if_nametoindex ("dummy0");
  setsockopt (sockfd1, IPPROTO_IPV6, IPV6_JOIN_ANYCAST, &mreq, sizeof (mreq));

  pause ();
}

BR,
Francois-Xavier

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