Bug 31944 – proftpd-1.2.9_rc3: error "address mismatch" when using simple active ftp mode

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Sven Wegener 2003-10-24 14:22:11 UTC]

After upgrading from proftpd-1.2.9_rc2-1 to proftpd-1.2.9_rc3 the active mode 
stopped working. When using simple active mode, I get the following logfile 
entries on the server:

Oct 24 21:18:11 goliath proftpd[15053]: goliath.??? (pD951302D.dip.t-dialin.net
[217.81.48.45]) - Refused PORT 217,81,48,45,134,71 (address mismatch)

This is the corresponding raw debug from lukemftp:

ftp> ls
---> PORT 217,81,48,45,134,71
500 Illegal PORT command

As you see, the IP addresses and port in the PORT command and the host I'm 
connecting from are the same. In proftpd-1.2.9_rc2-r1 this works flawlessly.


Reproducible: Always
Steps to Reproduce:
1. emerge =proftpd-1.2.9_rc3
2. connect to server with lukemftp
3. use simple active mode: in lukemftp the following settings are 
relevant: "passive off" and "epsv4 off"
4. try to do some transfers 
Actual Results:  
I'm getting the reply

500 Illegal PORT command

from proftpd.

Expected Results:  
Should accept the PORT command and transfer files ;)

Portage 2.0.49-r15 (default-x86-1.4, gcc-3.3.1, glibc-2.3.2-r6, 2.4.20-G-R7)
=================================================================
System uname: 2.4.20-G-R7 i686 AMD Duron(tm) processor
Gentoo Base System version 1.4.3.11
ccache version 2.3 [enabled]
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CFLAGS="-march=athlon -O3 -pipe -mfpmath=sse -foptimize-sibling-calls -fforce-
addr -frerun-cse-after-loop -frerun-loop-opt -fgcse -fexpensive-optimizations -
foptimize-register-move -funroll-loops -fprefetch-loop-arrays -fmove-all-
movables -fomit-frame-pointer -falign-functions=4 -maccumulate-outgoing-args -
msse -mmmx -m3dnow"
CHOST="i686-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /var/qmail/control /usr/share/config /usr/kde/2/share/confi
g /usr/kde/3/share/config /var/bind"
CONFIG_PROTECT_MASK="/etc/gconf /etc/init.d /etc/env.d"
CXXFLAGS="-march=athlon -O3 -pipe -mfpmath=sse -foptimize-sibling-calls -fforce-
addr -frerun-cse-after-loop -frerun-loop-opt -fgcse -fexpensive-optimizations -
foptimize-register-move -funroll-loops -fprefetch-loop-arrays -fmove-all-
movables -fomit-frame-pointer -falign-functions=4 -maccumulate-outgoing-args -
msse -mmmx -m3dnow -Wno-deprecated"
DISTDIR="/usr/portage/distfiles"
FEATURES="sandbox ccache autoaddcvs"
GENTOO_MIRRORS="http://mirrors.sec.informatik.tu-darmstadt.de/gentoo 
ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo 
http://www.mirror.ac.uk/sites/www.ibiblio.org/gentoo/ ftp://ftp.tu-
clausthal.de/pub/linux/gentoo/ ftp://ftp.uni-erlangen.de/pub/mirrors/gentoo 
http://ftp.uni-erlangen.de/pub/mirrors/gentoo http://gentoo.inode.at/ 
ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ 
ftp://ftp.easynet.nl/mirror/gentoo/"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 crypt encode foomaticdb gif jpeg mad ncurses nls pdflib png truetype 
xml2 zlib gdbm berkdb slang readline mysql tcpd pam libwww ssl perl python ldap 
acl apache2 curl flash gd gd-external imap innodb ipv6 lcms maildir mbox nptl 
php postgres sasl socks5 sse tiff wmf xml -oss -apm -arts -avi -cups -gpm -gtk -
imlib -java -kde -gnome -libg++ -mikmod -motif -mpeg -opengl -qt -quicktime -
sdl -spell -svga -X -xmms -xv -oggvorbis"

[Comment 1 Sven Wegener 2003-10-24 14:27:35 UTC]

see http://bugs.proftpd.org/show_bug.cgi?id=2247

[Comment 2 Stewart (RETIRED) 2003-11-05 19:22:22 UTC]

Upstream problem; seems to be resolved in 1.2.9. Please upgrade and report.

[Comment 3 Sven Wegener 2003-11-05 22:49:16 UTC]

Works as expected.