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    PfSense 2.2: Squid 3.4.10_2 pkg 0.2.6 redirection not working in transparent mode

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    • S
      Steve Evans
      last edited by

      Changed rules to

      : grep SquidProxy /tmp/rules.debug
      SquidProxy = "{   3128 }"
      pass  in log  quick  on $LAN inet proto tcp  from any to $pfSense port $SquidProxy tracker 1422139913 flags S/SA keep state  label "USER_RULE: Squid Proxy"
      pass  in log  quick  on $LAN inet proto tcp  from any to 127.0.0.1 port $SquidProxy tracker 1422382055 flags S/SA keep state  label "USER_RULE: Squid Proxy loopback"
      
      

      No improvement.

      Steve

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      • S
        Steve Evans
        last edited by

        To prove the point that the redirected transparent connection is not getting through to squid, I stopped the squid process and then ran the following on the pfSense console.

        : nc -l 3128
        

        I then telnetted to pfsense from my laptop and a connection was established and characters passed.

        $ telnet 10.5.1.1 3128
        Trying 10.5.1.1...
        Connected to pfsense.scevans.com.
        Escape character is '^]'.
        hello
        
        : nc -Dl 3128
        hello
        

        I repeated trying to telnet to port 80 on news.bbc.co.uk which should have been directed by the redirect, and no connection was made.

        Steve

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        • S
          Steve Evans
          last edited by

          I've now turn off transparent mode and then added a NAT rule.

          This appears in /tmp/rules.debug thus.

          rdr on msk2 proto tcp from any to !10.5.1.0/24 port 80 -> 10.5.1.1 port 3128
          

          I see the resulting packet to port 3128 being passed by the firewall in the logs on an attempt to access an external host on port 80 from LAN.

          With squid stopped and running

          nc -vl 3128
          

          instead on the pfSense console this connection attempt is not seen.

          Contacting pfSense directly from the LAN on port 3128 does get through.

          Clearly the HTTP request gets redirected to port 3128, makes it through the firewall, but then gets lost.

          I'm stumped.

          Steve

          redirectNAT.png
          redirectNAT.png_thumb

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          • marcellocM
            marcelloc
            last edited by

            May be not related to the issue but do you have pfsense gui redirect enabled under system -> advanced?

            All my testes were on pfsense 2.2 amd64, no cf or nanobsd.

            What 2.2 version are you using?

            Treinamentos de Elite: http://sys-squad.com

            Help a community developer! ;D

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            • S
              Steve Evans
              last edited by

              I have the Disable webConfigurator redirect rule checkbox ticked as I have WPAD running on port 80 using the vHosts web server. Unfortunately iPhones etc don't use WPAD so I need transparency mode, but I've left it turned on for now.

              I'm using the recent full 2.2 release.

              I've just tried putting a pass all rule at the start of my LAN rules to see if that would fix any firewall issue, but it did no good.

              Steve

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              • marcellocM
                marcelloc
                last edited by

                2.2 amd64?

                Treinamentos de Elite: http://sys-squad.com

                Help a community developer! ;D

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                • S
                  Steve Evans
                  last edited by

                  : uname -a
                  FreeBSD pfsense.scevans.com 10.1-RELEASE-p4 FreeBSD 10.1-RELEASE-p4 #0 36d7dec(releng/10.1)-dirty: Thu Jan 22 15:19:32 CST 2015     root@pfsense-22-i386-builder:/usr/obj.i386/usr/pfSensesrc/src/sys/pfSense_wrap.10.i386  i386
                  : cat /etc/version
                  2.2-RELEASE
                  
                  

                  I've just rebooted the firewall with all pf rules reverted to those in /conf.default/config.xml. This should eliminate any firewall rule peculiarities. I'll let you know how that works once it's up.

                  Thanks,

                  Steve

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                  • marcellocM
                    marcelloc
                    last edited by

                    I have two users on portuguese forum with same version 2.2-RELEASE-i386 and same issue.

                    Maybe it's related to squid pbi package compilation under i386 system.

                    Treinamentos de Elite: http://sys-squad.com

                    Help a community developer! ;D

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                    • S
                      Steve Evans
                      last edited by

                      Interesting.

                      Given that I see the lack of redirection with nc as well as squid I'm inclined to think this may not be an issue with squid at all, but rather with pf. That'd be quite a fundamental problem for pfSense!

                      I made THIS post in the Firewalling forum to see if that provides any insight. For now I'm going to see if a minimal pf configuration helps.

                      Thanks,

                      Steve

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                      • S
                        Steve Evans
                        last edited by

                        With the default firewall rules, squid is still not working in transparent mode.

                        As you're seeing multiple reports of this, could you please raise a bug report that captures the collective experience.

                        Thanks,

                        Steve

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                        • marcellocM
                          marcelloc
                          last edited by

                          @Steve:

                          With the default firewall rules, squid is still not working in transparent mode.

                          As you're seeing multiple reports of this, could you please raise a bug report that captures the collective experience.

                          Thanks,

                          Steve

                          I'll need to create an i386 virtual machine to get same problem. On all my labs, transparent proxy is working fine.

                          Treinamentos de Elite: http://sys-squad.com

                          Help a community developer! ;D

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                          • S
                            Steve Evans
                            last edited by

                            OK, thanks.

                            I thought the following might be of use to confirm the squid configuration I have installed.

                            : squid -v
                            Squid Cache: Version 3.4.10
                            configure options:  '--with-default-user=squid' '--bindir=/usr/local/sbin' '--sbindir=/usr/local/sbin' '--datadir=/usr/local/etc/squid' '--libexecdir=/usr/local/libexec/squid' '--localstatedir=/var' '--sysconfdir=/usr/local/etc/squid' '--with-logdir=/var/log/squid' '--with-pidfile=/var/run/squid/squid.pid' '--with-swapdir=/var/squid/cache' '--enable-auth' '--enable-build-info' '--enable-loadable-modules' '--enable-removal-policies=lru heap' '--disable-epoll' '--disable-linux-netfilter' '--disable-linux-tproxy' '--disable-translation' '--disable-arch-native' '--enable-eui' '--enable-cache-digests' '--enable-delay-pools' '--enable-ecap' '--disable-esi' '--enable-follow-x-forwarded-for' '--enable-htcp' '--enable-icap-client' '--enable-icmp' '--enable-ident-lookups' '--enable-ipv6' '--enable-kqueue' '--with-large-files' '--enable-http-violations' '--without-nettle' '--enable-snmp' '--enable-ssl' '--enable-ssl-crtd' '--disable-stacktraces' '--disable-ipf-transparent' '--disable-ipfw-transparent' '--enable-pf-transparent' '--with-nat-devpf' '--disable-forw-via-db' '--enable-wccp' '--enable-wccpv2' '--enable-auth-basic=DB MSNT MSNT-multi-domain NCSA PAM POP3 RADIUS fake getpwnam LDAP NIS' '--enable-auth-digest=file' '--enable-external-acl-helpers=file_userip time_quota unix_group LDAP_group' '--enable-auth-negotiate=kerberos wrapper' '--enable-auth-ntlm=fake smb_lm' '--enable-storeio=ufs aufs diskd' '--enable-disk-io=AIO Blocking IpcIo Mmapped DiskThreads DiskDaemon' '--enable-log-daemon-helpers=file' '--enable-url-rewrite-helpers=fake' '--enable-storeid-rewrite-helpers=file' '--with-openssl=/usr' '--prefix=/usr/local' '--mandir=/usr/local/man' '--infodir=/usr/local/info/' '--build=i386-portbld-freebsd10.1' 'build_alias=i386-portbld-freebsd10.1' 'CC=cc' 'CFLAGS=-O2 -pipe  -I/usr/local/include -I/usr/local/include -I/usr/include -fstack-protector -DLDAP_DEPRECATED -fno-strict-aliasing' 'LDFLAGS= -L/usr/local/lib -L/usr/local/lib -pthread -Wl,-rpath,/usr/lib:/usr/local/lib -L/usr/lib -fstack-protector' 'LIBS=' 'CPPFLAGS=' 'CXX=c++' 'CXXFLAGS=-O2 -pipe -I/usr/local/include -I/usr/local/include -I/usr/include -fstack-protector -DLDAP_DEPRECATED -fno-strict-aliasing  -Wno-unused-private-field' 'CPP=cpp' 'PKG_CONFIG=pkgconf' --enable-ltdl-convenience
                            

                            Steve

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                            • S
                              Steve Evans
                              last edited by

                              Now here's an oddity. There are two squid binaries installed. Potential for inconsistencies here…

                              : which squid
                              /usr/local/sbin/squid
                              : /usr/local/sbin/squid -v 
                              Squid Cache: Version 3.4.10
                              configure options:  '--with-default-user=squid' '--bindir=/usr/local/sbin' '--sbindir=/usr/local/sbin' '--datadir=/usr/local/etc/squid' '--libexecdir=/usr/local/libexec/squid' '--localstatedir=/var' '--sysconfdir=/usr/local/etc/squid' '--with-logdir=/var/log/squid' '--with-pidfile=/var/run/squid/squid.pid' '--with-swapdir=/var/squid/cache' '--enable-auth' '--enable-build-info' '--enable-loadable-modules' '--enable-removal-policies=lru heap' '--disable-epoll' '--disable-linux-netfilter' '--disable-linux-tproxy' '--disable-translation' '--disable-arch-native' '--enable-eui' '--enable-cache-digests' '--enable-delay-pools' '--enable-ecap' '--disable-esi' '--enable-follow-x-forwarded-for' '--enable-htcp' '--enable-icap-client' '--enable-icmp' '--enable-ident-lookups' '--enable-ipv6' '--enable-kqueue' '--with-large-files' '--enable-http-violations' '--without-nettle' '--enable-snmp' '--enable-ssl' '--enable-ssl-crtd' '--disable-stacktraces' '--disable-ipf-transparent' '--disable-ipfw-transparent' '--enable-pf-transparent' '--with-nat-devpf' '--disable-forw-via-db' '--enable-wccp' '--enable-wccpv2' '--enable-auth-basic=DB MSNT MSNT-multi-domain NCSA PAM POP3 RADIUS fake getpwnam LDAP NIS' '--enable-auth-digest=file' '--enable-external-acl-helpers=file_userip time_quota unix_group LDAP_group' '--enable-auth-negotiate=kerberos wrapper' '--enable-auth-ntlm=fake smb_lm' '--enable-storeio=ufs aufs diskd' '--enable-disk-io=AIO Blocking IpcIo Mmapped DiskThreads DiskDaemon' '--enable-log-daemon-helpers=file' '--enable-url-rewrite-helpers=fake' '--enable-storeid-rewrite-helpers=file' '--with-openssl=/usr' '--prefix=/usr/local' '--mandir=/usr/local/man' '--infodir=/usr/local/info/' '--build=i386-portbld-freebsd10.1' 'build_alias=i386-portbld-freebsd10.1' 'CC=cc' 'CFLAGS=-O2 -pipe  -I/usr/local/include -I/usr/local/include -I/usr/include -fstack-protector -DLDAP_DEPRECATED -fno-strict-aliasing' 'LDFLAGS= -L/usr/local/lib -L/usr/local/lib -pthread -Wl,-rpath,/usr/lib:/usr/local/lib -L/usr/lib -fstack-protector' 'LIBS=' 'CPPFLAGS=' 'CXX=c++' 'CXXFLAGS=-O2 -pipe -I/usr/local/include -I/usr/local/include -I/usr/include -fstack-protector -DLDAP_DEPRECATED -fno-strict-aliasing  -Wno-unused-private-field' 'CPP=cpp' 'PKG_CONFIG=pkgconf' --enable-ltdl-convenience
                              : /usr/pbi/squid-i386/local/sbin/squid -v
                              Shared object "libmd5.so.0" not found, required by "squid"
                              

                              Steve

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                              • marcellocM
                                marcelloc
                                last edited by

                                @Steve:

                                Now here's an oddity.

                                This is one of pbi behaviors. same binary, different folder, different results. (Imagine get all it working together :))

                                And here is the confirmation that pbi build on i386 is outdated

                                '--disable-ipf-transparent' '--disable-ipfw-transparent'
                                

                                Go to amd64 and it will work  :)

                                Thanks for your feedback

                                Treinamentos de Elite: http://sys-squad.com

                                Help a community developer! ;D

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                                • S
                                  Steve Evans
                                  last edited by

                                  Hi Marcelloc,

                                  As I'm running on a Pentium-M on a Watchguard Firebox x750e I'm afraid that I'm constrained somewhat to only running 32 bit. That said, one of the great things about pfSense is it's a great application to run on older hardware, so thanks for keeping the i386 version alive!

                                  How soon might a package update for i386 be forthcoming would you guess?

                                  Thanks again,

                                  Steve

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                                  • marcellocM
                                    marcelloc
                                    last edited by

                                    Just wait core team to compile it again. The compile args were fixed few weeks ago but only amd64 was rebuild.

                                    Treinamentos de Elite: http://sys-squad.com

                                    Help a community developer! ;D

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                                    • G
                                      georgio777
                                      last edited by

                                      @marcelloc:

                                      Just wait core team to compile it again. The compile args were fixed few weeks ago but only amd64 was rebuild.

                                      I am running 2.2-RELEASE (amd64) and transparent mode isn't working either.

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                                      • marcellocM
                                        marcelloc
                                        last edited by

                                        @georgio777:

                                        I am running 2.2-RELEASE (amd64) and transparent mode isn't working either.

                                        Check package config again, it's working on my setup and on my labs.

                                        Treinamentos de Elite: http://sys-squad.com

                                        Help a community developer! ;D

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                                        • G
                                          georgio777
                                          last edited by

                                          @marcelloc:

                                          @georgio777:

                                          I am running 2.2-RELEASE (amd64) and transparent mode isn't working either.

                                          Check package config again, it's working on my setup and on my labs.

                                          Not sure what's wrong, I am getting the following errors on the system/squid logs.

                                          Squid log:

                                          2015/01/27 13:35:16 kid1| Starting Squid Cache version 3.4.10 for amd64-portbld-freebsd10.1...
                                          2015/01/27 13:35:17 kid1| sendto FD 24: (1) Operation not permitted
                                          2015/01/27 13:35:17 kid1| ipcCreate: CHILD: hello write test failed
                                          2015/01/27 13:44:36 kid1| Starting Squid Cache version 3.4.10 for amd64-portbld-freebsd10.1...
                                          2015/01/27 13:44:36 kid1| sendto FD 24: (1) Operation not permitted
                                          2015/01/27 13:44:36 kid1| ipcCreate: CHILD: hello write test failed
                                          2015/01/27 13:54:48 kid1| Starting Squid Cache version 3.4.10 for amd64-portbld-freebsd10.1...
                                          2015/01/27 13:54:48 kid1| sendto FD 24: (1) Operation not permitted
                                          2015/01/27 13:54:48 kid1| ipcCreate: CHILD: hello write test failed
                                          2015/01/27 13:56:10 kid1| Starting Squid Cache version 3.4.10 for amd64-portbld-freebsd10.1...
                                          2015/01/27 13:56:10 kid1| sendto FD 24: (1) Operation not permitted
                                          2015/01/27 13:56:10 kid1| ipcCreate: CHILD: hello write test failed
                                          2015/01/29 13:57:45 kid1| Starting Squid Cache version 3.4.10 for amd64-portbld-freebsd10.1...
                                          2015/01/29 13:57:45 kid1| sendto FD 24: (1) Operation not permitted
                                          2015/01/29 13:57:45 kid1| ipcCreate: CHILD: hello write test failed
                                          2015/01/29 14:08:07 kid1| Starting Squid Cache version 3.4.10 for amd64-portbld-freebsd10.1...
                                          2015/01/29 14:08:08 kid1| sendto FD 24: (1) Operation not permitted
                                          2015/01/29 14:08:08 kid1| ipcCreate: CHILD: hello write test failed
                                          2015/01/29 14:17:08 kid1| Starting Squid Cache version 3.4.10 for amd64-portbld-freebsd10.1...
                                          2015/01/29 14:17:08 kid1| sendto FD 24: (1) Operation not permitted
                                          2015/01/29 14:17:08 kid1| ipcCreate: CHILD: hello write test failed
                                          

                                          System log:

                                          Jan 29 12:32:00 pfsense php-fpm[86134]: /rc.filter_configure_sync: The command '/sbin/pfctl -nf /tmp/rules.test.packages' returned exit code '1', the output was '/tmp/rules.test.packages:37: syntax error /tmp/rules.test.packages:38: syntax error /tmp/rules.test.packages:39: syntax error /tmp/rules.test.packages:40: syntax error' 
                                          Jan 29 12:32:00 pfsense php-fpm[86134]: /rc.filter_configure_sync: There was an error while parsing the package filter rules for /usr/local/pkg/squid.inc.
                                          Jan 29 12:32:03 pfsense php-fpm[86134]: /rc.filter_configure_sync: The command '/sbin/pfctl -nf /tmp/rules.test.packages' returned exit code '1', the output was '/tmp/rules.test.packages:36: syntax error' 
                                          Jan 29 12:32:03 pfsense php-fpm[86134]: /rc.filter_configure_sync: There was an error while parsing the package filter rules for /usr/local/pkg/squid.inc.
                                          

                                          Hope you can help.

                                          Thanks.

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                                          • marcellocM
                                            marcelloc
                                            last edited by

                                            Problably you've enabled transparent mode but did not selected any interface for interception.

                                            Treinamentos de Elite: http://sys-squad.com

                                            Help a community developer! ;D

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