netdev - Re: [PATCH net-next v4 7/9] ipv6: allow ping to link-local address in VRF

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 6 Nov 2018 11:14:33 -0700
From:   David Ahern <dsahern@...il.com>
To:     Mike Manning <mmanning@...tta.att-mail.com>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v4 7/9] ipv6: allow ping to link-local address in
 VRF

On 11/2/18 1:10 PM, Mike Manning wrote:
> If link-local packets are marked as enslaved to a VRF, then to allow
> ping to the link-local from a vrf, the error handling for IPV6_PKTINFO
> needs to be relaxed to also allow the pkt ipi6_ifindex to be that of a
> slave device to the vrf.
> 
> Note that the real device also needs to be retrieved in icmp6_iif()
> to set the ipv6 flow oif to this for icmp echo reply handling. The
> recent commit 24b711edfc34 ("net/ipv6: Fix linklocal to global address
> with VRF") takes care of this, so the sdif does not need checking here.
> 
> This fix makes ping to link-local consistent with that to global
> addresses, in that this can now be done from within the same VRF that
> the address is in.
> 
> Signed-off-by: Mike Manning <mmanning@...tta.att-mail.com>
> ---
>  net/ipv6/ipv6_sockglue.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: David Ahern <dsahern@...il.com>