On 16/01/2016 13:16, Egerváry Gergely wrote:
> Hi,
>
> I'm running on:
> - NetBSD 7.0_STABLE (checked out today)
> - Squid 3.5.12 from NetBSD pkgsrc 2015Q4
> - IP Filter: v5.1.2 (536)
>
> Configured with "--enable-ipf-transparent":
>
> $ ./configure --sysconfdir=/usr/pkg/etc/squid
> --localstatedir=/var/squid --datarootdir=/usr/pkg/share/squid
> --disable-strict-e
> rror-checking --enable-auth --enable-cachemgr-hostname=localhost
> --enable-delay-pools --enable-icap-client --enable-icmp --enabl
> e-poll --enable-removal-policies=lru,heap --enable-storeio=ufs diskd
> --with-aio --with-default-user=squid --with-pidfile=/var/ru
> n/squid.pid --disable-arch-native --enable-ipf-transparent --enable-carp
> --without-mit-krb5 --without-heimdal-krb5 --enable-snmp
> --enable-ssl --with-openssl=/usr --enable-auth-basic=NCSA getpwnam PAM
> --enable-auth-digest=file --disable-auth-negotiate --ena
> ble-auth-ntlm=fake smb_lm --enable-external-acl-helpers=file_userip
> unix_group --prefix=/usr/pkg --build=x86_64--netbsd --host=x
> 86_64--netbsd --mandir=/usr/pkg/man
>
> For testing, I flushed ALL ipfilter and ipnat rules, except one:
>
> rdr wm1 from 172.28.0.0/16 to any port = 80 -> 172.28.0.20 port 80 tcp
>
> wm1 is the LAN interface, 172.28.0.20 is the squid IP.
>
> $ egrep -v '(^$|^#)' squid.conf
>
> acl Safe_ports port 80 # http
> acl CONNECT method CONNECT
> http_access deny !Safe_ports
> http_access deny CONNECT !SSL_ports
> http_access allow localhost manager
> http_access deny manager
> http_access allow localnet
> http_access allow localhost
> http_access deny all
> http_port 127.0.0.1:80 intercept
> http_port 127.0.0.1:8080
> http_port 172.28.0.20:80 intercept
> http_port 172.28.0.20:8080
> coredump_dir /var/squid/cache/squid
> refresh_pattern ^ftp: 1440 20% 10080
> refresh_pattern ^gopher: 1440 0% 1440
> refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
> refresh_pattern . 0 20% 4320
>
> ... and I get the famous message:
>
> 2016/01/16 13:57:45 kid1| ERROR: NAT/TPROXY lookup failed to locate
> original IPs on local=172.28.0.20:80 remote=172.28.0.20:6536
> 3 FD 19 flags=33
>
> Do I miss something?
This is a bug in IPFilter 5. We're waiting to hear back from the
IPFilter maintainer before committing.
Try this patch (and read the PR for more info):
--- sys/external/bsd/ipf/netinet/ip_nat.c 8 Aug 2015 10:09:57
-0000 1.13.2.1
+++ sys/external/bsd/ipf/netinet/ip_nat.c 18 Jan 2016 08:34:51 -0000
@@ -4626,9 +4626,10 @@
np->nl_flags &= ~IPN_FINDFORWARD;
}
}
+/* XXX http://gnats.netbsd.org/50198 */
- np->nl_realip = nat->nat_ndstip;
- np->nl_realport = nat->nat_ndport;
+ np->nl_realip = nat->nat_odstip;
+ np->nl_realport = nat->nat_odport;
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