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    Suricata-5.0.3 Package Update -- Release Notes (pfSense-2.5 DEVEL)

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    • bmeeksB
      bmeeks @kiokoman
      last edited by

      @kiokoman said in Suricata-5.0.3 Package Update -- Release Notes (pfSense-2.5 DEVEL):

      sadly the telegraf stuff does not work anymore, i need to investigate.
      the data are sent from suricata to the socket but telegraf does not grab it

      I didn't have a telgraf installation to test with. All I did in the PHP code was add code to create the entry in suricata.yaml that generates a separate EVE log with the "unix_stream" output type.

      Let me know what you discover. Perhaps some changes are needed on the Suricata side ???

      1 Reply Last reply Reply Quote 0
      • kiokomanK
        kiokoman LAYER 8
        last edited by 

        [2.5.0-DEVELOPMENT][root@pfSense.kiokoman.home]/var/run: nc -lkU suricataWAN-stats.sock
{"timestamp":"2020-07-15T15:59:22.616765+0200","event_type":"stats","stats":{"uptime":43,"capture":{"kernel_packets":549,"kernel_drops":0,"kernel_ifdrops":0},"decoder":{"pkts":549,"bytes":75660,"invalid":0,"ipv4":549,"ipv6":25,"ethernet":0,"raw":0,"null":549,"sll":0,"tcp":16,"udp":480 alot of stuff here ...

        but

        [2.5.0-DEVELOPMENT][root@pfSense.kiokoman.home]/var/run: /usr/local/bin/telegraf --debug -config=/root/telegraf.conf
2020-07-15T14:03:13Z I! Starting Telegraf 1.13.4
2020-07-15T14:03:13Z I! Loaded inputs: suricata
2020-07-15T14:03:13Z I! Loaded aggregators:
2020-07-15T14:03:13Z I! Loaded processors:
2020-07-15T14:03:13Z I! Loaded outputs: influxdb
2020-07-15T14:03:13Z I! Tags enabled: host=pfSense.kiokoman.home
2020-07-15T14:03:13Z I! [agent] Config: Interval:10s, Quiet:false, Hostname:"pfSense.kiokoman.home", Flush Interval:10s
2020-07-15T14:03:13Z D! [agent] Initializing plugins
2020-07-15T14:03:13Z D! [agent] Connecting outputs
2020-07-15T14:03:13Z D! [agent] Attempting connection to [outputs.influxdb]
2020-07-15T14:03:13Z D! [agent] Successfully connected to outputs.influxdb
2020-07-15T14:03:13Z D! [agent] Starting service inputs
2020-07-15T14:03:30Z D! [outputs.influxdb] Buffer fullness: 0 / 10000 metrics

        i think there is something on telegraf

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        • bmeeksB
          bmeeks @kiokoman
          last edited by bmeeks

          @kiokoman said in Suricata-5.0.3 Package Update -- Release Notes (pfSense-2.5 DEVEL):

          [2.5.0-DEVELOPMENT][root@pfSense.kiokoman.home]/var/run: nc -lkU suricataWAN-stats.sock
{"timestamp":"2020-07-15T15:59:22.616765+0200","event_type":"stats","stats":{"uptime":43,"capture":{"kernel_packets":549,"kernel_drops":0,"kernel_ifdrops":0},"decoder":{"pkts":549,"bytes":75660,"invalid":0,"ipv4":549,"ipv6":25,"ethernet":0,"raw":0,"null":549,"sll":0,"tcp":16,"udp":480 alot of stuff here ...

          but

          [2.5.0-DEVELOPMENT][root@pfSense.kiokoman.home]/var/run: /usr/local/bin/telegraf --debug -config=/root/telegraf.conf
2020-07-15T14:03:13Z I! Starting Telegraf 1.13.4
2020-07-15T14:03:13Z I! Loaded inputs: suricata
2020-07-15T14:03:13Z I! Loaded aggregators:
2020-07-15T14:03:13Z I! Loaded processors:
2020-07-15T14:03:13Z I! Loaded outputs: influxdb
2020-07-15T14:03:13Z I! Tags enabled: host=pfSense.kiokoman.home
2020-07-15T14:03:13Z I! [agent] Config: Interval:10s, Quiet:false, Hostname:"pfSense.kiokoman.home", Flush Interval:10s
2020-07-15T14:03:13Z D! [agent] Initializing plugins
2020-07-15T14:03:13Z D! [agent] Connecting outputs
2020-07-15T14:03:13Z D! [agent] Attempting connection to [outputs.influxdb]
2020-07-15T14:03:13Z D! [agent] Successfully connected to outputs.influxdb
2020-07-15T14:03:13Z D! [agent] Starting service inputs
2020-07-15T14:03:30Z D! [outputs.influxdb] Buffer fullness: 0 / 10000 metrics

          i think there is something on telegraf

          Suricata is certainly spewing stats out through the socket, so that part is working. I agree it is likely on the telegraf side. I'm not familiar with telegraf having never used it. Are there some debugging options to have telegraf log someplace the raw data it is getting from the socket?

          Here is the original Feature Request: https://redmine.pfsense.org/issues/10421#change-47203. The creator of the request claimed to have it working (although he had to manually edit the suricata.yaml file). I duplicated in the PHP code what he did on the Suricata side.

          EDIT: never mind, just realized you were the creator of the Feature Request ... ☺

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          • kiokomanK
            kiokoman LAYER 8
            last edited by

            yes, i was the one requesting it, it was working at that time, maybe it was before the upgrade to freebsd 12.1-stable
            now telegraf does not work anymore

            from debug i have this

            _umtx_op(0x45d95f8,UMTX_OP_WAKE_PRIVATE,0x1,0x0,0x0) = 0 (0x0)
_umtx_op(0x45d95f8,UMTX_OP_WAIT_UINT_PRIVATE,0x0,0x18,0xc000079e48) = 0 (0x0)
write(2,"2020-07-15T16:40:06Z D! [outputs"...,78) = 78 (0x4e)
nanosleep({ 0.000020000 })                       = 0 (0x0)
thr_kill(100746,SIGURG)                          = 0 (0x0)
SIGNAL 16 (SIGURG) code=SI_LWP pid=69801 uid=0
nanosleep({ 0.000020000 })                       = 0 (0x0)
sigreturn(0xc000087b00)                          EJUSTRETURN
nanosleep({ 0.000020000 })                       = 0 (0x0)
nanosleep({ 0.000020000 })                       = 0 (0x0)
compat11.kevent(3,0x0,0,{ },64,{ 3.378182125 })  = 0 (0x0)
compat11.kevent(3,0x0,0,{ },64,{ 0.000000000 })  = 0 (0x0)
_umtx_op(0xc00006a4d0,UMTX_OP_WAKE_PRIVATE,0x1,0x0,0x0) = 0 (0x0)
_umtx_op(0xc00006a4d0,UMTX_OP_WAIT_UINT_PRIVATE,0x0,0x18,0x0) = 0 (0x0)
compat11.kevent(3,0x0,0,{ },64,{ 0.000000000 })  = 0 (0x0)
nanosleep({ 0.000003000 })                       = 0 (0x0)
_umtx_op(0xc000247650,UMTX_OP_WAKE_PRIVATE,0x1,0x0,0x0) = 0 (0x0)
_umtx_op(0xc000247650,UMTX_OP_WAIT_UINT_PRIVATE,0x0,0x18,0x0) = 0 (0x0)
_umtx_op(0x45d95f8,UMTX_OP_WAIT_UINT_PRIVATE,0x0,0x18,0xc000079e48) ERR#60 'Operation timed out'
nanosleep({ 0.000020000 })                       = 0 (0x0)
_umtx_op(0x45d95f8,UMTX_OP_WAIT_UINT_PRIVATE,0x0,0x18,0xc000079e48) ERR#60 'Operation timed out'
compat11.kevent(3,0x0,0,{ },64,{ 1.567486309 })  = 0 (0x0)
_umtx_op(0xc000246f50,UMTX_OP_WAKE_PRIVATE,0x1,0x0,0x0) = 0 (0x0)
compat11.kevent(3,0x0,0,{ },64,{ 0.000000000 })  = 0 (0x0)
_umtx_op(0xc000246f50,UMTX_OP_WAIT_UINT_PRIVATE,0x0,0x18,0x0) = 0 (0x0)
nanosleep({ 0.000020000 })                       = 0 (0x0)
_umtx_op(0xc000247650,UMTX_OP_WAKE_PRIVATE,0x1,0x0,0x0) = 0 (0x0)
_umtx_op(0xc000247650,UMTX_OP_WAIT_UINT_PRIVATE,0x0,0x18,0x0) = 0 (0x0)
sched_yield()                                    = 0 (0x0)
nanosleep({ 0.000020000 })                       = 0 (0x0)
compat11.kevent(3,0x0,0,{ },64,{ 0.000000000 })  = 0 (0x0)
_umtx_op(0xc00005a768,UMTX_OP_WAKE_PRIVATE,0x1,0x0,0x0) = 0 (0x0)
nanosleep({ 0.000020000 })                       = 0 (0x0)
nanosleep({ 0.000020000 })                       = 0 (0x0)
sched_yield()                                    = 0 (0x0)
_umtx_op(0x45d94f8,UMTX_OP_WAKE_PRIVATE,0x1,0x0,0x0) = 0 (0x0)
compat11.kevent(3,0x0,0,{ 9,EVFILT_READ,EV_CLEAR,0,0x2000,0x82b10ce90 },64,{ 4.958977535 }) = 1 (0x1)
_umtx_op(0x45d95f8,UMTX_OP_WAKE_PRIVATE,0x1,0x0,0x0) = 0 (0x0)
_umtx_op(0x45d95f8,UMTX_OP_WAIT_UINT_PRIVATE,0x0,0x18,0xc000079e48) = 0 (0x0)
read(9,"{"timestamp":"2020-07-15T18:40:1"...,10420224) = 8192 (0x2000)
nanosleep({ 0.000020000 })                       = 0 (0x0)
nanosleep({ 0.000020000 })                       = 0 (0x0)
read(9,0xc00095a000,10412032)                    ERR#35 'Resource temporarily unavailable'
nanosleep({ 0.000020000 })                       = 0 (0x0)
nanosleep({ 0.000020000 })                       = 0 (0x0)
compat11.kevent(3,0x0,0,{ },64,{ 0.000000000 })  = 0 (0x0)

            as you can see there is a

            read(9,"{"timestamp":"2020-07-15T18:40:1"...,10420224)

            that's part of the output from suricata

            followed by

            read(9,0xc00095a000,10412032)                    ERR#35 'Resource temporarily unavailable'

            well, i have no idea, i also tried with Telegraf 1.15.0 but same error/problem

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            • bmeeksB
              bmeeks
              last edited by

              FYI. As of today (Thursday, July 16th), barring no major issues showing up the DEVEL branch, the plan is to migrate this 5.0.3 Suricata package update over to pfSense-2.4.5_p1 RELEASE Monday or Tuesday of next week (July 20th or 21st).

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              • kiokomanK
                kiokoman LAYER 8
                last edited by kiokoman

                @bmeeks maybe i found something,
                the suricata plugin of telegraf is expecting \n at the end of the line but i think it's never coming,
                it seems to be truncated at the end
                any settings from suricata that can solve this?

                example coming from unix socket

                {"timestamp":"2020-07-17T10:08:18.856758+0200" ......."invalid_checksum":0,"no_flow":0,"syn":1044,"synack":454,"r <- alway end like this

                example coming from eve.json

                {"timestamp":"2020-07-17T10:35:00.974605+0200".......<{"expectations":0},"flow":{"memuse":8443384}}}}}  <--- good output

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                • kiokomanK
                  kiokoman LAYER 8
                  last edited by

                  problem solved, i need to increse this

                  sysctl -w net.local.stream.recvspace=16384
                  sysctl -w net.local.stream.sendspace=16384

                  now i see data on my grafana

                  ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                  Please do not use chat/PM to ask for help
                  we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                  Don't forget to Upvote with the 👍 button for any post you find to be helpful.

                  bmeeksB 2 Replies Last reply Reply Quote 0
                  • bmeeksB
                    bmeeks @kiokoman
                    last edited by bmeeks

                    @kiokoman said in Suricata-5.0.3 Package Update -- Release Notes (pfSense-2.5 DEVEL):

                    problem solved, i need to increse this

                    sysctl -w net.local.stream.recvspace=16384
                    sysctl -w net.local.stream.sendspace=16384

                    now i see data on my grafana

                    Ah-ha! It was truncating the stream. FreeBSD has so darn many system tunables ... 😕

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                    • bmeeksB
                      bmeeks @kiokoman
                      last edited by

                      @kiokoman said in Suricata-5.0.3 Package Update -- Release Notes (pfSense-2.5 DEVEL):

                      problem solved, i need to increse this

                      sysctl -w net.local.stream.recvspace=16384
                      sysctl -w net.local.stream.sendspace=16384

                      now i see data on my grafana

                      Added a section to my initial RELEASE NOTES post detailing the need to check and probably adjust these system tuneables. Thanks for the investigation and feedback!

                      1 Reply Last reply Reply Quote 1
                      • kiokomanK
                        kiokoman LAYER 8
                        last edited by kiokoman

                        it will also be added to the README of the plugin https://github.com/influxdata/telegraf/issues/7843

                        ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                        Please do not use chat/PM to ask for help
                        we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                        Don't forget to Upvote with the 👍 button for any post you find to be helpful.

                        bmeeksB 1 Reply Last reply Reply Quote 0
                        • bmeeksB
                          bmeeks @kiokoman
                          last edited by

                          @kiokoman said in Suricata-5.0.3 Package Update -- Release Notes (pfSense-2.5 DEVEL):

                          it will also be added to the README of the plugin https://github.com/influxdata/telegraf/issues/7843

                          👍

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