HELP. Divided into fields Fortinet logs with regular expressions.

Tags: regex config | field

#1 absolis 6 years ago

Hi, my logs:

<188>date=2017-09-26 time=10:53:04 devname=FT01 devid=************* logid=0000000011 type=traffic subtype=forward level=warning vd=root srcip=10.25d.1dd.ddd srcport=59ddd srcintf="portB" dstip=2dd.1dd.dd5.ddd dstport=dd3 dstintf="port9" poluuid=16594dae-dddd-51e7-dddd-da81ec23cc23 sessionid=26ddd5925 proto=6 action=ip-conn policyid=103 policytype=policy appcat="unscanned" crscore=5 craction=262144 crlevel=low devtype="Router/NAT Device" mastersrcmac=00:dd:14:dd:c8:dd srcmac=00:dd:14:dd:c8:ddt="default" appa

<189>date=2017-09-26 time=10:53:04 devname=FT01 devid=************* logid=0000000013 type=traffic subtype=forward level=notice vd=root srcip=10.25d.1dd.ddd srcport=59674 srcintf="portB" dstip=2dd.1dd.dd5.ddd dstport=443 dstintf="port9" poluuid=16594dae-dddd-51e7-dddd-da81ec23cc23 sessionid=260ddd925 proto=6 action=close policyid=103 policytype=policy dstcountry="United States" srccountry="Reserved" trandisp=snat transip=10.2dd.1dd.2dd transport=59674 service="HTTPS" appid=40568 app="HTTPS.BROWSER" appcat="Web.Client" apprisk=medium applist="default" appact=detected duration=140 sentbyte=1244 rcvdbyte=770 sentpkt=9 rcvdpkt=6 devtype="Router/NAT Device" mastersrcmac=00:2d:dd:6b:dd:60 srcmac=00:dd:14:dd:c8:ddc=88:ad:d2:88:eb

<189>date=2017-09-26 time=10:53:04 devname=FT01 devid=************* logid=0000000013 type=traffic subtype=forward level=notice vd=root srcip=10.2dd.dd.dd srcport=42768 srcintf="portB" dstip=2dd.1dd.dd.dd dstport=53 dstintf="port9" poluuid=0dddda60-dddd-51e7-dddd-56c9d0ddde2f sessionid=260ddd113 proto=17 action=accept policyid=84 policytype=policy dstcountry="Hong Kong" srccountry="Reserved" trandisp=snat transip=10.2dd.dd.2d transport=42768 service="DNS" appid=16195 app="DNS" appcat="Network.Service" apprisk=elevated applist="default" appact=detected duration=180 sentbyte=77 rcvdbyte=93 sentpkt=1 rcvdpkt=1 devtype="Router/NAT Device" mastersrcmac=00:dd:14:dd:c8:dd srcmac=00:dd:14:dd:c8:dddd:6060 srcmac=0

I want to use regular expressions:

field >> regex

action = ^.+\saction=(\S+)\s
app = ^.+\sapp=\"(.+?)\"
appcat = ^.+\sappcat=\"(.+?)\"
applist = ^.+\sapplist=\"(.+?)\"
attack = ^.+\sattack=\"(.+?)\"
devid = ^.+\sdevid=(\S+)\s
dir = ^.+\sdir=(\S+)\s
dstcountry = ^.+\sdstcountry=\"(.+?)\"
dstintf = ^.+\sdstintf=\"(.+?)\"
dstip = ^.+\sdstip=(\S+)\s
dstport = ^.+\sdstport=(\S+)\s
... 175 more

What configuration to use?

<Input i.forti.log>
Module im_file
File "/var/log/forti.log"
InputType LineBased
</Input>

<Output o.forti.log>
Module om_tcp
Host 192.168.00.00
Port XXXXX
CAFile /data/conf/ca.crt
AllowUntrusted TRUE
OutputType LineBased
</Output>

<Route r.forti.log>
Path i.forti.log => o.forti.log
</Route>

Thank you very much!!

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#2 b0ti Nxlog ✓ 6 years ago (Last updated 6 years ago )

#1 absolis

Hi, my logs: <188>date=2017-09-26 time=10:53:04 devname=FT01 devid=************* logid=0000000011 type=traffic subtype=forward level=warning vd=root srcip=10.25d.1dd.ddd srcport=59ddd srcintf="portB" dstip=2dd.1dd.dd5.ddd dstport=dd3 dstintf="port9" poluuid=16594dae-dddd-51e7-dddd-da81ec23cc23 sessionid=26ddd5925 proto=6 action=ip-conn policyid=103 policytype=policy appcat="unscanned" crscore=5 craction=262144 crlevel=low devtype="Router/NAT Device" mastersrcmac=00:dd:14:dd:c8:dd srcmac=00:dd:14:dd:c8:ddt="default" appa <189>date=2017-09-26 time=10:53:04 devname=FT01 devid=************* logid=0000000013 type=traffic subtype=forward level=notice vd=root srcip=10.25d.1dd.ddd srcport=59674 srcintf="portB" dstip=2dd.1dd.dd5.ddd dstport=443 dstintf="port9" poluuid=16594dae-dddd-51e7-dddd-da81ec23cc23 sessionid=260ddd925 proto=6 action=close policyid=103 policytype=policy dstcountry="United States" srccountry="Reserved" trandisp=snat transip=10.2dd.1dd.2dd transport=59674 service="HTTPS" appid=40568 app="HTTPS.BROWSER" appcat="Web.Client" apprisk=medium applist="default" appact=detected duration=140 sentbyte=1244 rcvdbyte=770 sentpkt=9 rcvdpkt=6 devtype="Router/NAT Device" mastersrcmac=00:2d:dd:6b:dd:60 srcmac=00:dd:14:dd:c8:ddc=88:ad:d2:88:eb <189>date=2017-09-26 time=10:53:04 devname=FT01 devid=************* logid=0000000013 type=traffic subtype=forward level=notice vd=root srcip=10.2dd.dd.dd srcport=42768 srcintf="portB" dstip=2dd.1dd.dd.dd dstport=53 dstintf="port9" poluuid=0dddda60-dddd-51e7-dddd-56c9d0ddde2f sessionid=260ddd113 proto=17 action=accept policyid=84 policytype=policy dstcountry="Hong Kong" srccountry="Reserved" trandisp=snat transip=10.2dd.dd.2d transport=42768 service="DNS" appid=16195 app="DNS" appcat="Network.Service" apprisk=elevated applist="default" appact=detected duration=180 sentbyte=77 rcvdbyte=93 sentpkt=1 rcvdpkt=1 devtype="Router/NAT Device" mastersrcmac=00:dd:14:dd:c8:dd srcmac=00:dd:14:dd:c8:dddd:6060 srcmac=0 I want to use regular expressions: field >> regex action = ^.+\saction=(\S+)\s app = ^.+\sapp=\"(.+?)\" appcat = ^.+\sappcat=\"(.+?)\" applist = ^.+\sapplist=\"(.+?)\" attack = ^.+\sattack=\"(.+?)\" devid = ^.+\sdevid=(\S+)\s dir = ^.+\sdir=(\S+)\s dstcountry = ^.+\sdstcountry=\"(.+?)\" dstintf = ^.+\sdstintf=\"(.+?)\" dstip = ^.+\sdstip=(\S+)\s dstport = ^.+\sdstport=(\S+)\s ... 175 more What configuration to use? <Input i.forti.log> Module im_file File "/var/log/forti.log" InputType LineBased </Input> <Output o.forti.log> Module om_tcp Host 192.168.00.00 Port XXXXX CAFile /data/conf/ca.crt AllowUntrusted TRUE OutputType LineBased </Output> <Route r.forti.log> Path i.forti.log => o.forti.log </Route> Thank you very much!!

You should strip the leading <189> with this:

Exec if $raw_event =~ /^\<\d+\>/ $raw_event = $1;

Then use parse_kvp().

On the other hand om_tcp sends $raw_event so I'm not sure what the purpose of the parsing is.