linux-kernel - Re: [PATCH v2] ipv4/raw: support binding to nonlocal addresses

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Message-ID: <20211104103346.29d82cb1@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Thu, 4 Nov 2021 10:34:08 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Riccardo Paolo Bestetti <pbl@...tov.io>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>,
        Shuah Khan <shuah@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v2] ipv4/raw: support binding to nonlocal addresses

On Tue,  2 Nov 2021 15:19:21 +0100 Riccardo Paolo Bestetti wrote:
> Add support to inet v4 raw sockets for binding to nonlocal addresses
> through the IP_FREEBIND and IP_TRANSPARENT socket options, as well as
> the ipv4.ip_nonlocal_bind kernel parameter.
> 
> Add helper function to inet_sock.h to check for bind address validity on
> the base of the address type and whether nonlocal address are enabled
> for the socket via any of the sockopts/sysctl, deduplicating checks in
> ipv4/ping.c, ipv4/af_inet.c, ipv6/af_inet6.c (for mapped v4->v6
> addresses), and ipv4/raw.c.
> 
> Add test cases with IP[V6]_FREEBIND verifying that both v4 and v6 raw
> sockets support binding to nonlocal addresses after the change. Add
> necessary support for the test cases to nettest.
> 
> Signed-off-by: Riccardo Paolo Bestetti <pbl@...tov.io>

Thanks for the patch, please keep Dave's review tag and repost 
in ~2 weeks.


# Form letter - net-next is closed

We have already sent the networking pull request for 5.16
and therefore net-next is closed for new drivers, features,
code refactoring and optimizations. We are currently accepting
bug fixes only.

Please repost when net-next reopens after 5.15-rc1 is cut.

Look out for the announcement on the mailing list or check:
http://vger.kernel.org/~davem/net-next.html