From: Pablo Neira Ayuso <pablo@eurodev.net>
To: Noman Liaquat <khankhn1@yahoo.com>
Cc: netfilter@lists.netfilter.org
Subject: Re: string help
Date: Mon, 26 Dec 2005 14:03:18 +0100 [thread overview]
Message-ID: <43AFEA16.1070103@eurodev.net> (raw)
In-Reply-To: <20051224073209.54921.qmail@web35908.mail.mud.yahoo.com>
Noman Liaquat wrote:
> I want to replace string "hello" with "abcd" how i
> could do with iptables mangle, patch-o-matic is
> working fine
Firstly, since kernel >= 2.6.14 you don't need the string match in
pom-ng anymore.
About your question: such kind of replacement that you want to do is
evil. Think about a TCP connection, if you modify the size of the packet
the sequence number will be corrupted. So, adding support for replacing
a string with another string of the same size would be fine. Whatever
else would be broken.
--
Pablo
prev parent reply other threads:[~2005-12-26 13:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-24 7:32 string help Noman Liaquat
2005-12-24 13:51 ` Rob Sterenborg
2005-12-24 18:09 ` /dev/rob0
2005-12-26 13:03 ` Pablo Neira Ayuso [this message]
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=43AFEA16.1070103@eurodev.net \
--to=pablo@eurodev.net \
--cc=khankhn1@yahoo.com \
--cc=netfilter@lists.netfilter.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.