Squid 3.3.4 package for pfsense with ssl filtering

Fehler20

I have to report another bug and a problem:

1.) If you enable transparent proxy an disable SSL-interception, transparent mode does not work. It seems that there is a problem with the intercept command with transparent connections at the config file. If you change from "192.168.x.x:8080 intercept" to "192.168.x.x:8080 transparent" everything is ok.

2.) If you enable the proxy for more than one interface only the first gets access to the internet. For every other interface, access is denied, regardless wether you define an acl or check the option "Allow users on interface".

packeteer

I have a strange issue with this version of squid. Squid service is running but unable to connect on the designated port (3128).

Reverted back to the older version.

marcelloc

@packeteer:

I have a strange issue with this version of squid. Squid service is running but unable to connect on the designated port (3128).

If you are on 2.0.x, you need to enable ivp6 or update package via pkg_delete and pkg_add from my repo.

marcelloc

Util freebsd ports are updated, I've pushed squid-3.3.5 pbi files to my repo.

This way you can test/use squid3 package on latest 2.1-rc0

pfsense 2.1 amd64
pbi_delete squid-3.3.4-amd64
fetch http://e-sac.siteseguro.ws/packages/amd64/8/All/squid-3.3.5-amd64.pbi
fetch http://e-sac.siteseguro.ws/packages/amd64/8/All/squid-3.3.5-amd64.pbi.sha256
pbi_add –no-checksig squid-3.3.5-amd64.pbi
rehash

pfsense 2.1 i386
pbi_delete squid-3.3.4-i386
fetch http://e-sac.siteseguro.ws/packages/8/All/squid-3.3.5-i386.pbi
fetch http://e-sac.siteseguro.ws/packages/8/All/squid-3.3.5-i386.pbi.sha256
pbi_add –no-checksig squid-3.3.5-i386.pbi
rehash

quetzalcoatl

Fehler20 says that if he keeps SSL-interception disabled the transparent proxy doesn't work.

That is the same issue that i believe is happening to me.

I will try to turn on SSL-interception, but i don't know if i have to configure something to make it work properly with the transparent proxy.

And yes, i did forget to turn squid logging on!
Sorry!

wheelz

I set up my 2.0.3 version to try the SSL filtering. I got the HTTP traffic going through squid so that works. I generated a Test CA cert in Cert Manager and installed in on my test workstation. However when I go to https://www.google.com it just spins at connecting… I can telnet to port 3129 and something answers so I think the traffic is getting through the firewall. Squid service appears to be running but I don't see anything in the logs about the request. Any help?

marcelloc

@wheelz:

Any help?

Did you replaced squid to 3.3.5 from my repo?

wheelz

@marcelloc:

Did you replaced squid to 3.3.5 from my repo?

I have now but I'm not sure if I did it right. I'm getting this when I'm try to run squid:

/libexec/ld-elf.so.1: /usr/lib/librt.so.1: unsupported file layout

I wasn't sure if I needed to do that pbi command either since I'm on 2.0.3. I tried to see if it would execute but it wasn't there.

marcelloc

@wheelz:

/libexec/ld-elf.so.1: /usr/lib/librt.so.1: unsupported file layout

on 2.0.3, use pkg_add and pkg_delete to get squid 3.3.5

i386
pkg_add -r http://e-sac.siteseguro.ws/packages/8/All/squid-3.3.5.tbz

amd64
pkg_add -r http://e-sac.siteseguro.ws/packages/amd64/8/All/squid-3.3.5.tbz

wheelz

@marcelloc:

@wheelz:

/libexec/ld-elf.so.1: /usr/lib/librt.so.1: unsupported file layout

on 2.0.3, use pkg_add and pkg_delete to get squid 3.3.5

i386
pkg_add -r http://e-sac.siteseguro.ws/packages/8/All/squid-3.3.5.tbz

amd64
pkg_add -r http://e-sac.siteseguro.ws/packages/amd64/8/All/squid-3.3.5.tbz

Hmm… that's what I did. It complained about perl and openssl (I think) so I deleted them and let the pkg_add -r install the versions it wanted. After that it was successfull, however squid -v won't run with the error above.

marcelloc

you need libs and package with same arch as you pfsense version

if you installed pfsense 32 bits, you need i386 libs and packages
if you installed pfsense 64 bits, you need amd64 libs and packages

wheelz

ok, my fault. I had copy pasted the wrong PACKAGESITE path. I have that fixed now and squid starts fine, but still the same as before. HTTP goes fine but HTTPS just sits trying to connect. I just have HTTPS/SSL interception enabled on the loopback adapter, port 3129 (NAT rule to forward 3129 and firewall rule allowing it in). My TestCA certificate is selected and I left the rest as the defaults. My client has the TestCA certificate installed in the trusted CAs and I configured the SSL proxy to my pfsense on port 3129.

Here is what squid says:

squid -v
Squid Cache: Version 3.3.5
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/squid' '--enable-auth' '--enable-build-info' '--enable-loadable-modules' '--enable-removal-policies=lru heap' '--disable-epoll' '--disable-linux-netfilter' '--disable-linux-tproxy' '--disable-translation' '--enable-auth-basic=DB MSNT MSNT-multi-domain NCSA PAM POP3 RADIUS  fake getpwnam LDAP SASL NIS' '--enable-auth-digest=file' '--enable-external-acl-helpers=file_userip time_quota unix_group LDAP_group kerberos_ldap_group' '--enable-auth-negotiate=kerberos wrapper' '--enable-auth-ntlm=fake smb_lm' '--enable-storeio=diskd rock ufs aufs' '--enable-disk-io=AIO Blocking DiskDaemon IpcIo Mmapped DiskThreads' '--enable-log-daemon-helpers=file' '--enable-url-rewrite-helpers=fake' '--disable-ipv6' '--enable-delay-pools' '--enable-ssl' '--with-openssl=/usr' '--enable-ssl-crtd' '--enable-icmp' '--enable-htcp' '--disable-forw-via-db' '--enable-cache-digests' '--enable-wccp' '--enable-wccpv2' '--enable-eui' '--disable-ipfw-transparent' '--enable-pf-transparent' '--disable-ipf-transparent' '--enable-follow-x-forwarded-for' '--disable-ecap' '--enable-icap-client' '--disable-esi' '--enable-kqueue' '--with-large-files' '--prefix=/usr/local' '--mandir=/usr/local/man' '--infodir=/usr/local/info/' '--build=amd64-portbld-freebsd8.3' 'build_alias=amd64-portbld-freebsd8.3' 'CC=cc' 'CFLAGS=-O2 -pipe -I/usr/local/include -I/usr/local/include -I/usr/include -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' 'CPPFLAGS=-I/usr/local/include' 'CXX=c++' 'CXXFLAGS=-O2 -pipe -I/usr/local/include -I/usr/local/include -I/usr/include -DLDAP_DEPRECATED -fno-strict-aliasing' 'CPP=cpp'

Here is pkg_info:

pkg_info
arc-5.21p           Create & extract files from DOS .ARC files
arj-3.10.22_4       Open-source ARJ
bsdinstaller-2.0.2013.0412 BSD Installer mega-package
ca_root_nss-3.14.1  The root certificate bundle from the Mozilla Project
clamav-0.97.6       Command line virus scanner written entirely in C
compat6x-amd64-6.4.604000.200810_3 A convenience package to install the compat6x libraries
cyrus-sasl-2.1.26_2 RFC 2222 SASL (Simple Authentication and Security Layer)
dansguardian-2.12.0.3 A fast, feature-rich web content filter for Squid proxy ser
db41-4.1.25_4       The Berkeley DB package, revision 4.1
gettext-0.18.1.1    GNU gettext package
lha-1.14i_6         Archive files using LZSS and Huffman compression (.lzh file
libecap-0.2.0_1     Library for module based network content analysis
libiconv-1.14       A character set conversion library
libltdl-2.4.2       System independent dlopen wrapper
libwww-5.4.0_4      The W3C Reference Library
nano-2.2.6          Nano's ANOther editor, an enhanced free Pico clone
openldap-sasl-client-2.4.35 Open source LDAP client implementation with SASL2 support
pcre-8.32           Perl Compatible Regular Expressions library
perl-5.14.2_3       Practical Extraction and Report Language
squid-3.3.5         HTTP Caching Proxy
unzoo-4.4_2         A zoo archive extractor

Port 3129 connect via telnet but HTTPS connections time out without anything mentioned in the sys logs or access.log. Am I doing something wrong?

marcelloc

@wheelz:

I just have HTTPS/SSL interception enabled on the loopback adapter, port 3129 (NAT rule to forward 3129 and firewall rule allowing it in).

No need to create a nat rule.

Remove your nat, enable SSL on interface other then loopback and let squid do the config for you.

wheelz

@marcelloc:

No need to create a nat rule.

Remove your nat, enable SSL on interface other then loopback and let squid do the config for you.

I still need to have a firewall rule allowing port 3129 in on the interface IP, correct? Also I'm explicitly setting the SSL proxy IP/port. That will work right? Currently my traffic is going through another firewall so it would be hard for me to test it via transparent.

marcelloc

@wheelz:

I still need to have a firewall rule allowing port 3129 in on the interface IP, correct? Also I'm explicitly setting the SSL proxy IP/port. That will work right? Currently my traffic is going through another firewall so it would be hard for me to test it via transparent.

You need to configure ssl filtering port only on transparent mode.

On normal proxy configuration, traffic(http and https) goes fine on default squid port.

wheelz

@marcelloc:

You need to configure ssl filtering port only on transparent mode.

On normal proxy configuration, traffic(http and https) goes fine on default squid port.

Ok, I got the explicit squid proxy to pass https with no problem now. If I want to test the transparent https proxy then I just enable it with the CA cert I have? The default port is 3129 but clients won't be sending on that port. Do I need to change that to 443 then? Or should I NAT redirect it instead?

Also have some DG questions but I'll put then in the other thread.

marcelloc

@wheelz:

If I want to test the transparent https proxy then I just enable it with the CA cert I have?

Just enable it on LAN for example. Squid package will create rules to transparent proxy connections from 443 to localhost 3129.
do not select loopback on squid config while using transparent mode.

wheelz

Is it possible to run squid as explicit on one interface (like loopback or LAN) and also run it as transparent on a different interface like a guest net at the same time?

marcelloc

@wheelz:

Is it possible to run squid as explicit on one interface (like loopback or LAN) and also run it as transparent on a different interface like a guest net at the same time?

On squid3-dev yes ;D

Remember to do not use loopback on any configuration while using transparent mode.

iodaddio

@wheelz:

@marcelloc:

@wheelz:

/libexec/ld-elf.so.1: /usr/lib/librt.so.1: unsupported file layout

on 2.0.3, use pkg_add and pkg_delete to get squid 3.3.5

i386
pkg_add -r http://e-sac.siteseguro.ws/packages/8/All/squid-3.3.5.tbz

amd64
pkg_add -r http://e-sac.siteseguro.ws/packages/amd64/8/All/squid-3.3.5.tbz

Hmm… that's what I did. It complained about perl and openssl (I think) so I deleted them and let the pkg_add -r install the versions it wanted. After that it was successfull, however squid -v won't run with the error above.

When I do that, it complains that perl is the wrong version.