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

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Message-Id: <20170502.130032.1854491688518080191.davem@davemloft.net>
Date:   Tue, 02 May 2017 13:00:32 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     dsa@...ulusnetworks.com
Cc:     stephen@...workplumber.org, netdev@...r.kernel.org,
        jakub.kicinski@...ronome.com
Subject: Re: [PATCH net-next iproute2 1/3] netlink: import netlink message
 parsing from kernel

From: David Ahern <dsa@...ulusnetworks.com>
Date: Tue, 2 May 2017 10:51:23 -0600

> 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.

Agreed.

> 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.

Also agreed.