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    Squid3-dev ICAP Protocol Error on 32-bit

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    • M
      MIT
      last edited by

      Pfsense 2.1.3 32-bit
      Ram 4 GB
      HDD 128 GB SSD
      CPU AMD Athlon 3400+ 64-bit
      1 Wan
      1 Lan

      Packages:
      pfBlocker 1.0.2
      Squid3-dev 3.3.10 pkg 2.2.2

      I am using Squid3-dev with antivirus and SSL enabled.  Works very well, but often it will give this error:

      ICAP Protocol Error, with a "no error" error code

      ERROR in the browser
      The following error was encountered while trying to retrieve the URL: http://google.com
          ICAP protocol error.

      The system returned: [No Error]

      This means that some aspect of the ICAP communication failed.

      Some possible problems are:

      *

      The ICAP server is not reachable.
          *

      An Illegal response was received from the ICAP server.

      The only way to fix it is to restart squid.

      I have read here:  http://squidclamav.darold.net/tuning.html  that changing some variables might help.  I have doubled the default amounts described on the darold.net page, but it does not seem to help.  Does anyone have any hints on what to look at next?  This page also mentions that this works "with bypass enabled" - any idea what that means?

      Thanks!

      1 Reply Last reply Reply Quote 0
      • M
        MIT
        last edited by

        Potentially solved… the "bypass" feature can be added in the squid.inc file, as the squid.conf gets overwritten.  I'm not sure about adding it to the Custom fields in the GUI - maybe that would work(?), but I opted for the .inc edit instead.

        I also modified the other c-icap.conf file options that are relevant to these ICAP errors as stated on the developer's site. I ended up tripling the values before turning on the bypass=1 feature.  I might reduce the numbers now to double only, given that bypass seems to be working.  Clamav is presently running multiple processes and using (?) 600 MB of RAM, but I may not be reading the system activity correctly.

        So far, no ICAP error since turning bypass on.  Apparently, squid will ignore errors generated by ICAPs and not pass it on to the browser. I'm not sure if this breaks clamav for some period.  Squid3-dev is definately not for the ultra green  ;D

        1 Reply Last reply Reply Quote 0
        • BismarckB
          Bismarck
          last edited by

          Hi MIT, can you please show how you fixed it step by step?

          Thanks.

          1 Reply Last reply Reply Quote 0
          • G
            golmaal
            last edited by

            Same problem…64-bit system here. ICAP problems start as soon as I enable antivirus in Squid interface. I tried the "bypass"trick and it works but I think it completely breaks the antivirus feature. I tested the same on EICAR test file and another test website; the antivirus didn't show any warning.

            So...that basically kills the purpose!

            1 Reply Last reply Reply Quote 0
            • M
              MIT
              last edited by

              @golmaal:

              Same problem…64-bit system here. ICAP problems start as soon as I enable antivirus in Squid interface. I tried the "bypass"trick and it works but I think it completely breaks the antivirus feature. I tested the same on EICAR test file and another test website; the antivirus didn't show any warning.

              So...that basically kills the purpose!

              Strange.. I conitnue to have eicar blocking both http/https with bypass

              1 Reply Last reply Reply Quote 0
              • M
                MIT
                last edited by

                @Bismarck:

                Hi MIT, can you please show how you fixed it step by step?

                Thanks.

                In pfsense web gui…

                For the bypass feature....

                Go to Diagnostics > edit file
                Browse to /usr/local/pkg
                Load squid.inc
                modify these two lines:

                icap_service service_req reqmod_precache bypass=0 icap://127.0.0.1:1344/squidclamav
                icap_service service_resp respmod_precache bypass=0 icap://127.0.0.1:1344/squidclamav

                TO THIS:

                icap_service service_req reqmod_precache bypass=1 icap://127.0.0.1:1344/squidclamav
                icap_service service_resp respmod_precache bypass=1 icap://127.0.0.1:1344/squidclamav

                Save file.

                Then I rebooted.  Done

                I ended up changing everyhing in the C-icap parameters back to the defaults (so you need not change those, found on the Antivurs tab of Squid3-dev) same goes for clam.conf, changed back to defaults.  Only the bypass=1 change was needed and no more ICAP error. I have tested with EICAR and it continues to stop those everytime in http and https.

                Good luck  ;)

                D 1 Reply Last reply Reply Quote 0
                • E
                  exograpix
                  last edited by

                  Does it work with squidguard included in the equation too. I tried but didn't work.

                  1 Reply Last reply Reply Quote 0
                  • M
                    MIT
                    last edited by

                    @exograpix:

                    Does it work with squidguard included in the equation too. I tried but didn't work.

                    I don't use squidguard, so I am no help on that one.

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                    • O
                      orochvilato
                      last edited by

                      I've got the same problem on PFSense 2.1.4-RELEASE (amd64)

                      Enabling debug on squid, I've seen the following messages :

                      2014/07/11 10:36:29.862 kid1| url.cc(386) urlParse: urlParse: Split URL 'icap://127.0.0.1:1344/squidclamav ICAP/1.0
                      ' into proto='icap', host='127.0.0.1', port='1344', path='/squidclamav ICAP/1.0'
                      2014/07/11 10:36:29.862 kid1| url.cc(422) urlParse: urlParse: URI has whitespace: {icap://127.0.0.1:1344/squidclamav ICAP/1.0
                      RESPMOD icap://127.0.0.1:1344/squidclamav ICAP/1.0
                      ICAP/1.0 204 Unmodified
                      Server: C-ICAP/0.2.5
                      2014/07/11 10:36:29.869 kid1| ModXact.cc(742) parseHeaders: parse ICAP headers
                      2014/07/11 10:36:29.869 kid1| Xaction.cc(503) setOutcome: ICAP_ERR_OTHER
                      2014/07/11 10:36:29.870 kid1| Server.cc(828) handleAdaptationAborted: creating ICAP error entry after ICAP failure
                      2014/07/11 10:36:29.870 kid1| forward.cc(397) fail: ERR_ICAP_FAILURE "Internal Server Error"

                      It seems the url used to contact ICAP server is malformed (there is a whitespace in it).

                      1 Reply Last reply Reply Quote 0
                      • N
                        netn00b
                        last edited by

                        Sorry to necro this…

                        Has anyone found a solution to this? I get this same error message and if the issue is a malformed url in a config file, which one is it?

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                        • I
                          ikonspirasi
                          last edited by

                          Thanks MIT for the details, however in squid 3.4.10_2 pkg 0.2.6 there are changes in the squid.inc file.
                          it's like this:
                          icap_service service_avi_req reqmod_precache icap://[::1]:1344/squid_clamav bypass=off
                          adaptation_access service_avi_req allow all
                          icap_service service_avi_resp respmod_precache icap://[::1]:1344/squid_clamav bypass=on
                          adaptation_access service_avi_resp allow all

                          i changed the squid_clamav bypass=off to on and the eicar detection is working.

                          thank you again :)

                          1 Reply Last reply Reply Quote 0
                          • marcellocM
                            marcelloc
                            last edited by

                            As I've posted on other many squid3 topics, clamav integration will work if you:

                            • Enable antivirus on squid

                            • fix config warnings alerts

                            • wait first freshclam to finish

                            • stop and start (not restart) squid and c-icap service

                            Configure a clamav bypass has the same effect as disabling the antivirus integration.

                            I've tested it on amd64 at least 3 times and had a working on all tests.

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

                            Help a community developer! ;D

                            1 Reply Last reply Reply Quote 1
                            • F
                              fragged
                              last edited by

                              Can you fix the default config so that it works by default. While the GUI does tell you what to do if you save the page again, I'm sure that a lot of people on the forum and irc having issues with Squid do not go back there and save the page a second time.

                              1 Reply Last reply Reply Quote 0
                              • marcellocM
                                marcelloc
                                last edited by

                                @fragged:

                                Can you fix the default config so that it works by default. While the GUI does tell you what to do if you save the page again, I'm sure that a lot of people on the forum and irc having issues with Squid do not go back there and save the page a second time.

                                Decide what ip to use on sarg reports warn_php for example is not that simple. If I force Lan IP on package config then somebody will ask to listen on WLAN and/or internal http server.

                                This is a first run configuration. Once configured, you do not need to check again antivurus options.

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

                                Help a community developer! ;D

                                1 Reply Last reply Reply Quote 0
                                • T
                                  Topper727
                                  last edited by

                                  I have this problem on the 64 bit version RC 2.2 and I just go to the antivirus page and click save again and then the system comes back up .. but wish it stop messing up

                                  Dell 2950 g3 server
                                  Intel(R) Xeon(R) CPU E5430 @ 2.66GHz
                                  Current: 2000 MHz, Max: 2667 MHz
                                  8 CPUs: 2 package(s) x 4 core(s)
                                  8152 MiB and 600meg 10k drive
                                  Pfsense 2.4 .. Hoping to get the phpvirtualbox going again.

                                  1 Reply Last reply Reply Quote 0
                                  • A
                                    Antonio_Grande
                                    last edited by

                                    Friends, help, please, how to solve a problem with this error ICAP?
                                    Configuring a clamav bypass=1 is disabling the antivirus integration!
                                    PFsense 2.1.5 x64, squid 3.3.10

                                    1 Reply Last reply Reply Quote 0
                                    • marcellocM
                                      marcelloc
                                      last edited by

                                      Did you read the topic first?

                                      https://forum.pfsense.org/index.php?topic=77264.msg485524#msg485524

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

                                      Help a community developer! ;D

                                      1 Reply Last reply Reply Quote 0
                                      • A
                                        Antonio_Grande
                                        last edited by

                                        @marcelloc:

                                        Did you read the topic first?
                                        https://forum.pfsense.org/index.php?topic=77264.msg485524#msg485524

                                        Friend, yes, I read it. But to my regret, I didn't understand part of instructions:
                                        fix config warnings alerts
                                        wait first freshclam to finish
                                        Please, explain more in detail which needs to be made here.
                                        Thanks!

                                        1 Reply Last reply Reply Quote 0
                                        • BismarckB
                                          Bismarck
                                          last edited by

                                          Antonio, don't waste your time in pfSense 2.1.5 x64 i-cap ist still broken there, since it has never worked before.

                                          I guess you need to upgrade to pfSense 2.2 x64 to get it work, if I get marcelloc right?

                                          fix config warnings alerts = look in Status: System logs: General for errors and fix it

                                          wait first freshclam to finish = execute freshclam in the console/shell and watch via top till its finished

                                          Good luck.

                                          1 Reply Last reply Reply Quote 0
                                          • A
                                            Antonio_Grande
                                            last edited by

                                            Error in system log (PFsense 2.1.5 x64, squid 3.3.10):

                                            kernel: pid 85487 (c-icap), uid 9595: exited on signal 11

                                            It is possible to fix it, or it really nonremovable error in 2.1.5 x64 in ICAP?
                                            I don't like 2.2. With it I have many more problems with Squid+SquidGuard+Lightsquid. May be later, build of PFsense will be stable and I update it.

                                            1 Reply Last reply Reply Quote 0
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