From: David Ford <david+cert@blue-labs.org>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH] UDP short packet patch for ipv4
Date: Thu, 14 Feb 2002 14:07:39 -0500 [thread overview]
Message-ID: <3C6C0AFB.8080600@blue-labs.org> (raw)
[-- Attachment #1: Type: text/plain, Size: 961 bytes --]
This patch changes printk to add helpful information...i.e. who to
firewall etc. It is against 2.4.18-rc1. IPV6 needs one too but in my
opinion, a similar NIPQUAD macro needs built and the IPV6 core in
general needs a tidying up to use the new macro.
--- linux/net/ipv4/udp.c.orig Thu Feb 14 13:38:24 2002
+++ linux/net/ipv4/udp.c Thu Feb 14 13:32:34 2002
@@ -928,7 +928,14 @@
return(0);
short_packet:
- NETDEBUG(if (net_ratelimit()) printk(KERN_DEBUG "UDP: short
packet: %d/%d\n", ulen, len));
+ NETDEBUG(if (net_ratelimit())
+ printk(KERN_DEBUG "UDP: short packet: %u.%u.%u.%u:%u
%d/%d to %u.%u.%u.%u:%u\n",
+ NIPQUAD(saddr),
+ ntohs(uh->source),
+ ulen,
+ len,
+ NIPQUAD(daddr),
+ ntohs(uh->dest)));
no_header:
UDP_INC_STATS_BH(UdpInErrors);
kfree_skb(skb);
[-- Attachment #2: S/MIME Cryptographic Signature --]
[-- Type: application/x-pkcs7-signature, Size: 3254 bytes --]
reply other threads:[~2002-02-14 19:08 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=3C6C0AFB.8080600@blue-labs.org \
--to=david+cert@blue-labs.org \
--cc=linux-kernel@vger.kernel.org \
/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