Date: Wed, 24 May 2000 16:27:23 -0700 From: Erik Salander <erik@whistle.com> To: freebsd-net@FreeBSD.ORG Cc: archie@whistle.com, julian@elischer.org, eivind@FreeBSD.ORG, kris@FreeBSD.ORG, ru@FreeBSD.ORG, imp@village.org, brian@Awfulhak.org, cmott@scientech.com Subject: libalias changes for PPTP, RTSP, FTP(passive) Message-ID: <392C655B.5966AE30@whistle.com>
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Hi,
I've got some changes for libalias that are ready to be reviewed. The
general features are:
- add support to alias RTSP and RTP (see new module alias_rtsp.c)
- add support to alias PPTP and GRE (see new module alias_pptp.c and
all "LINK_GRE" references)
- adding support for passive mode FTP, aliasing the 227 replies (see
alias_ftp.c)
- a new utility function, PacketUnaliasOut (see alias.c)
Note, the FTP aliasing now ensures that:
1. the segment preceding a PORT/227 segment terminates with a \r\n.
2. the IP address in the PORT/227 matches the source IP address of
the packet.
3. the port number in the PORT command or 277 reply is greater than
or equal to 1024
Here are the changes:
ftp://ftp.whistle.com/pub/archie/misc/libalias.patch.1
Please review when you can and let me know if you have comments.
Thanks!
Erik Salander
Whistle Communications
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