From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: Hans Wippel <ndev@hwipl.net>
Cc: WireGuard mailing list <wireguard@lists.zx2c4.com>,
Netdev <netdev@vger.kernel.org>
Subject: Re: wireguard: problem sending via libpcap's packet socket
Date: Fri, 26 Jun 2020 14:41:54 -0600 [thread overview]
Message-ID: <CAHmME9r7Q_+_3ePj4OzxZOkkrSdKA_THNjk6YjHxTQyNA2iaAw@mail.gmail.com> (raw)
In-Reply-To: <20200626201330.325840-1-ndev@hwipl.net>
Hi Hans,
On Fri, Jun 26, 2020 at 2:14 PM Hans Wippel <ndev@hwipl.net> wrote:
> while toying around with sending packets with libpcap, I noticed that it
> did not work with a wireguard interface in contrast to my regular
> ethernet interface.
Thanks for letting me know. I'll try to repro and will look if this is
common behavior for all virtual drivers, or simply a bug in WireGuard
that I need to address.
If it is the latter, your patch below isn't quite correct; we'll
probably address this instead by simply setting skb->protocol in xmit
by peaking at the header, if skb->protocol is zero, and then keeping
the rest of the logic the same elsewhere.
Jason
next parent reply other threads:[~2020-06-26 20:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200626201330.325840-1-ndev@hwipl.net>
2020-06-26 20:41 ` Jason A. Donenfeld [this message]
2020-06-26 20:42 ` Jason A. Donenfeld
2020-06-27 0:22 ` Jason A. Donenfeld
2020-06-27 5:58 ` Jason A. Donenfeld
2020-06-28 20:04 ` Willem de Bruijn
2020-07-01 3:05 ` Jason A. Donenfeld
2020-07-01 12:19 ` Hans Wippel
2020-07-01 16:28 ` Willem de Bruijn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAHmME9r7Q_+_3ePj4OzxZOkkrSdKA_THNjk6YjHxTQyNA2iaAw@mail.gmail.com \
--to=jason@zx2c4.com \
--cc=ndev@hwipl.net \
--cc=netdev@vger.kernel.org \
--cc=wireguard@lists.zx2c4.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).