netdev - Re: [PATCH net-next iproute2 1/3] netlink: import netlink message parsing from kernel

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Date:   Tue, 2 May 2017 10:51:23 -0600
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org, jakub.kicinski@...ronome.com
Subject: Re: [PATCH net-next iproute2 1/3] netlink: import netlink message
 parsing from kernel

On 5/2/17 9:25 AM, Stephen Hemminger wrote:
> Please either use existing netlink attribute code in libnetlink.h
> (rta_getattr_u32 etc) or use libmnl like devlink.

All of the existing rta_ functions take a struct rta_attr; netlink
messages use struct nlattr. It's just wrong to use rta functions for
netlink messages.

There is no existing parse function for nlattr. There is no existing
validate function - for nlattr or rta_attr. So I do not see any overlap
with existing code.

If you prefer ip to gain a dependency on libmnl, I'll take a look.