netdev - Re: [PATCH iproute2] ip: add support for more MPLS labels

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Date:   Mon, 22 May 2017 11:04:27 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     David Ahern <dsahern@...il.com>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH iproute2] ip: add support for more MPLS labels

On Sat, 13 May 2017 19:27:02 -0600
David Ahern <dsahern@...il.com> wrote:

> Kernel now supports up to 30 labels but not defined as part of the uapi.
> iproute2 handles up to 8 labels but in a non-consistent way. Update ip
> to handle more labels, but in a more programmatic way.
> 
> For the MPLS address family, the data field in inet_prefix is used for
> labels.  Increase that field to 64 u32's -- 64 as nothing more than a
> convenient power of 2 number.
> 
> Update mpls_pton to take the length of the address field, convert that
> length to number of labels and add better error handling to the parsing
> of the user supplied string.
> 
> Signed-off-by: David Ahern <dsahern@...il.com>

Looks good applied