netdev - Re: [PATCH iproute2 net-next] iproute: extend route get for mpls routes

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Date:   Tue, 18 Jul 2017 17:15:02 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Roopa Prabhu <roopa@...ulusnetworks.com>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH iproute2 net-next] iproute: extend route get for mpls
 routes

On Fri,  7 Jul 2017 15:08:11 -0700
Roopa Prabhu <roopa@...ulusnetworks.com> wrote:

> From: Roopa Prabhu <roopa@...ulusnetworks.com>
> 
> This patch extends route get to support mpls specific
> route attributes like RTA_NEWDST.
> 
> Input:
> RTA_DST - input label
> RTA_NEWDST - labels in packet for multipath selection
> 
> By default the getroute handler returns matched
> nexthop label, via and oif
> 
> With fibmatch keyword (RTM_F_FIB_MATCH flag), full matched
> route is returned.
> 
> example:
> $ip -f mpls route show
> 101
>         nexthop as to 102/103 via inet 172.16.2.2 dev virt1-2
>         nexthop as to 302/303 via inet 172.16.12.2 dev virt1-12
> 201
>         nexthop as to 202/203 via inet6 2001:db8:2::2 dev virt1-2
>         nexthop as to 402/403 via inet6 2001:db8:12::2 dev virt1-12
> 
> $ip -f mpls route get 103
> RTNETLINK answers: Network is unreachable
> 
> $ip -f mpls route get 101
> 101 as to 102/103 via inet 172.16.2.2 dev virt1-2
> 
> $ip -f mpls route get as to 302/303 101
> 101 as to 302/303 via inet 172.16.12.2 dev virt1-12
> 
> $ip -f mpls route get fibmatch 103
> RTNETLINK answers: Network is unreachable
> 
> $ip -f mpls route get fibmatch 101
> 101
>         nexthop as to 102/103 via inet 172.16.2.2 dev virt1-2
>         nexthop as to 302/303 via inet 172.16.12.2 dev virt1-12
> 
> Signed-off-by: Roopa Prabhu <roopa@...ulusnetworks.com>

Applied, thanks.