[Lognorm] Special characters revisited

James Lay jlay at slave-tothe-box.net
Fri Jul 6 01:48:35 CEST 2012 

On Jul 4, 2012, at 10:44 AM, James Lay wrote:
> On Jul 4, 2012, at 9:32 AM, Rainer Gerhards wrote:
>> 
>> 
>>> -----Original Message-----
>>> From: lognorm-bounces at lists.adiscon.com [mailto:lognorm-
>>> bounces at lists.adiscon.com] On Behalf Of James Lay
>>> Sent: Wednesday, July 04, 2012 4:10 PM
>>> To: lognorm
>>> Subject: Re: [Lognorm] Special characters revisited
>>> 
>>> On Jun 13, 2012, at 7:11 AM, James Lay wrote:
>>>> On May 25, 2012, at 12:44 PM, James Lay wrote:
>>>>> On Fri, 25 May 2012 12:33:15 -0600, James Lay wrote:
>>>>>> Hey all!
>>>>>> 
>>>>>> So...here's where I'm at.  Here's my rulebase:
>>>>>> 
>>>>>> prefix=
>>>>>> rule=: %-:word% request discarded from
>>>>>> %src-ip:ipv4%/%src-port:number% to
>>>>>> %-:word%:%dst-ip:ipv4%/%dst-port:number%
>>>>>> 
>>>>>> 
>>>>>> Sample firewall hit (quotes added for clarity):
>>>>>> 
>>>>>> " TCP request discarded from 96.18.101.250/1077 to Interface:my_ip/443"
>>>>>> 
>>>>>> and my result:
>>>>>> 
>>>>>> [cee at 115 originalmsg=" TCP request discarded from 96.18.101.250/1077
>>>>>> to Interface:my_ip/443" unparsed-data=""]
>>>>>> 
>>>>>> I've tried the below (thinking the : would be included in word)
>>>>>> rule=: %-:word% request discarded from
>>>>>> %src-ip:ipv4%/%src-port:number% to
>>>>>> %-:word%%dst-ip:ipv4%/%dst-port:number%
>>>>>> 
>>>>>> And I get the same result.
>>>>>> 
>>>>>> I've also tried:
>>>>>> rule=: %-:word% request discarded from
>>>>>> %src-ip:ipv4%/%src-port:number% to
>>>>>> Interface:%dst-ip:ipv4%/%dst-port:number%
>>>>>> 
>>>>>> And this works, so I'm pretty sure it's the : that is my issue.  A
>>>>>> full -vv below.  Any thoughts on how to get this to go?  Thanks all:
>>>>>> 
>>>>>> James
>>>>>> 
>>>>>> liblognorm: read sample line: 'prefix='
>>>>>> liblognorm: read sample line: 'rule=: %-:word% request discarded from
>>>>>> %src-ip:ipv4%/%src-port:number% to
>>>>>> %-:word%:%dst-ip:ipv4%/%dst-port:number%'
>>>>>> liblognorm: sample line to add: ': %-:word% request discarded from
>>>>>> %src-ip:ipv4%/%src-port:number% to
>>>>>> %-:word%:%dst-ip:ipv4%/%dst-port:number%'
>>>>>> 
>>>>>> liblognorm: addSampToTree 0 of 108
>>>>>> liblognorm: parsed literal: ' '
>>>>>> liblognorm: buildPTree: begin at 0x9308030, offs 0
>>>>>> liblognorm: case 3.1
>>>>>> liblognorm: addPTree: offs 0
>>>>>> liblognorm: setPrefix lenBuf 1, offs 0
>>>>>> liblognorm: addSampToTree 1 of 108
>>>>>> liblognorm: parsed field: '-'
>>>>>> liblognorm: got new subtree 0x9308810
>>>>>> liblognorm: prev subtree 0x9308030
>>>>>> liblognorm: new subtree 0x9308810
>>>>>> liblognorm: addSampToTree 9 of 108
>>>>>> liblognorm: parsed literal: ' request discarded from '
>>>>>> liblognorm: buildPTree: begin at 0x9308810, offs 0
>>>>>> liblognorm: case 3.1
>>>>>> liblognorm: addPTree: offs 0
>>>>>> liblognorm: setPrefix lenBuf 24, offs 0
>>>>>> liblognorm: addSampToTree 33 of 108
>>>>>> liblognorm: parsed field: 'src-ip'
>>>>>> liblognorm: got new subtree 0x9308ca0
>>>>>> liblognorm: prev subtree 0x9308810
>>>>>> liblognorm: new subtree 0x9308ca0
>>>>>> liblognorm: addSampToTree 46 of 108
>>>>>> liblognorm: parsed literal: '/'
>>>>>> liblognorm: buildPTree: begin at 0x9308ca0, offs 0
>>>>>> liblognorm: case 3.1
>>>>>> liblognorm: addPTree: offs 0
>>>>>> liblognorm: setPrefix lenBuf 1, offs 0
>>>>>> liblognorm: addSampToTree 47 of 108
>>>>>> liblognorm: parsed field: 'src-port'
>>>>>> liblognorm: got new subtree 0x9309110
>>>>>> liblognorm: prev subtree 0x9308ca0
>>>>>> liblognorm: new subtree 0x9309110
>>>>>> liblognorm: addSampToTree 64 of 108
>>>>>> liblognorm: parsed literal: ' to '
>>>>>> liblognorm: buildPTree: begin at 0x9309110, offs 0
>>>>>> liblognorm: case 3.1
>>>>>> liblognorm: addPTree: offs 0
>>>>>> liblognorm: setPrefix lenBuf 4, offs 0
>>>>>> liblognorm: addSampToTree 68 of 108
>>>>>> liblognorm: parsed field: '-'
>>>>>> liblognorm: got new subtree 0x9309580
>>>>>> liblognorm: prev subtree 0x9309110
>>>>>> liblognorm: new subtree 0x9309580
>>>>>> liblognorm: addSampToTree 76 of 108
>>>>>> liblognorm: parsed literal: ':'
>>>>>> liblognorm: buildPTree: begin at 0x9309580, offs 0
>>>>>> liblognorm: case 3.1
>>>>>> liblognorm: addPTree: offs 0
>>>>>> liblognorm: setPrefix lenBuf 1, offs 0
>>>>>> liblognorm: addSampToTree 77 of 108
>>>>>> liblognorm: parsed field: 'dst-ip'
>>>>>> liblognorm: got new subtree 0x93099f0
>>>>>> liblognorm: prev subtree 0x9309580
>>>>>> liblognorm: new subtree 0x93099f0
>>>>>> liblognorm: addSampToTree 90 of 108
>>>>>> liblognorm: parsed literal: '/'
>>>>>> liblognorm: buildPTree: begin at 0x93099f0, offs 0
>>>>>> liblognorm: case 3.1
>>>>>> liblognorm: addPTree: offs 0
>>>>>> liblognorm: setPrefix lenBuf 1, offs 0
>>>>>> liblognorm: addSampToTree 91 of 108
>>>>>> liblognorm: parsed field: 'dst-port'
>>>>>> liblognorm: got new subtree 0x9309e60
>>>>>> liblognorm: prev subtree 0x93099f0
>>>>>> liblognorm: new subtree 0x9309e60
>>>>>> liblognorm: end addSampToTree 108 of 108
>>>>>> number of tree nodes: 7
>>>>>> To normalize: ' TCP request discarded from 96.18.101.250/1077 to
>>>>>> Interface:my_ip/443'
>>>>>> liblognorm: 0: prefix compare ' ', ' '
>>>>>> liblognorm: 1: prefix compare succeeded, still valid
>>>>>> liblognorm: 1:trying parser for field '-': 0xb786c450
>>>>>> liblognorm: potential hit, trying subtree
>>>>>> liblognorm: 4: prefix compare ' ', ' '
>>>>>> liblognorm: 5: prefix compare 'r', 'r'
>>>>>> liblognorm: 6: prefix compare 'e', 'e'
>>>>>> liblognorm: 7: prefix compare 'q', 'q'
>>>>>> liblognorm: 8: prefix compare 'u', 'u'
>>>>>> liblognorm: 9: prefix compare 'e', 'e'
>>>>>> liblognorm: 10: prefix compare 's', 's'
>>>>>> liblognorm: 11: prefix compare 't', 't'
>>>>>> liblognorm: 12: prefix compare ' ', ' '
>>>>>> liblognorm: 13: prefix compare 'd', 'd'
>>>>>> liblognorm: 14: prefix compare 'i', 'i'
>>>>>> liblognorm: 15: prefix compare 's', 's'
>>>>>> liblognorm: 16: prefix compare 'c', 'c'
>>>>>> liblognorm: 17: prefix compare 'a', 'a'
>>>>>> liblognorm: 18: prefix compare 'r', 'r'
>>>>>> liblognorm: 19: prefix compare 'd', 'd'
>>>>>> liblognorm: 20: prefix compare 'e', 'e'
>>>>>> liblognorm: 21: prefix compare 'd', 'd'
>>>>>> liblognorm: 22: prefix compare ' ', ' '
>>>>>> liblognorm: 23: prefix compare 'f', 'f'
>>>>>> liblognorm: 24: prefix compare 'r', 'r'
>>>>>> liblognorm: 25: prefix compare 'o', 'o'
>>>>>> liblognorm: 26: prefix compare 'm', 'm'
>>>>>> liblognorm: 27: prefix compare ' ', ' '
>>>>>> liblognorm: 28: prefix compare succeeded, still valid
>>>>>> liblognorm: 28:trying parser for field 'src-ip': 0xb786bdb0
>>>>>> liblognorm: potential hit, trying subtree
>>>>>> liblognorm: 41: prefix compare '/', '/'
>>>>>> liblognorm: 42: prefix compare succeeded, still valid
>>>>>> liblognorm: 42:trying parser for field 'src-port': 0xb786c510
>>>>>> liblognorm: potential hit, trying subtree
>>>>>> liblognorm: 46: prefix compare ' ', ' '
>>>>>> liblognorm: 47: prefix compare 't', 't'
>>>>>> liblognorm: 48: prefix compare 'o', 'o'
>>>>>> liblognorm: 49: prefix compare ' ', ' '
>>>>>> liblognorm: 50: prefix compare succeeded, still valid
>>>>>> liblognorm: 50:trying parser for field '-': 0xb786c450
>>>>>> liblognorm: potential hit, trying subtree
>>>>>> liblognorm: 74 returns -1
>>>>>> liblognorm: 50 nonmatch, backtracking required, left=-1
>>>>>> liblognorm: 50 no field, trying subtree char 'I': (nil)
>>>>>> liblognorm: 50 returns -1
>>>>>> liblognorm: 42 nonmatch, backtracking required, left=-1
>>>>>> liblognorm: 42 no field, trying subtree char '1': (nil)
>>>>>> liblognorm: 42 returns -1
>>>>>> liblognorm: 28 nonmatch, backtracking required, left=-1
>>>>>> liblognorm: 28 no field, trying subtree char '9': (nil)
>>>>>> liblognorm: 28 returns -1
>>>>>> liblognorm: 1 nonmatch, backtracking required, left=-1
>>>>>> liblognorm: 1 no field, trying subtree char 'T': (nil)
>>>>>> liblognorm: 1 returns -1
>>>>>> liblognorm: final result for normalizer: left -1, endNode 0x9309580
>>>>>> normalized: '[cee at 115 originalmsg=" TCP request discarded from
>>>>>> 96.18.101.250/1077 to Interface:my_ip/443" unparsed-data=""]'
>>>>>> [cee at 115 originalmsg=" TCP request discarded from 96.18.101.250/1077
>>>>>> to Interface:my_ip/443" unparsed-data=""]
>>>>>> 
>>>>>> _______________________________________________
>>>>>> Lognorm mailing list
>>>>>> Lognorm at lists.adiscon.com
>>>>>> http://lists.adiscon.net/mailman/listinfo/lognorm
>>>>> 
>>>>> An interesting tidbit...with the below:
>>>>> 
>>>>> 
>>>>> " TCP request discarded from 96.18.101.250/1077 to 1234:my_ip/443"
>>>>> 
>>>>> and
>>>>> 
>>>>> rule=: %-:word% request discarded from %src-ip:ipv4%/%src-port:number%
>>> to %-:number%:%dst-ip:ipv4%/%dst-port:number%
>>>>> 
>>>>> This works and correctly processes.  Hope that helps.
>>>>> 
>>>>> James
>>>>> 
>>>>> _______________________________________________
>>>>> Lognorm mailing list
>>>>> Lognorm at lists.adiscon.com
>>>>> http://lists.adiscon.net/mailman/listinfo/lognorm
>>>> 
>>>> Any movement on this?  I'm at an impasse until this is addressed...thank you.
>>>> 
>>>> James
>>>> _______________________________________________
>>>> Lognorm mailing list
>>>> Lognorm at lists.adiscon.com
>>>> http://lists.adiscon.net/mailman/listinfo/lognorm
>>> 
>>> Would have been nice to at least get some response of some kind on this...
>> 
>> Oh, damn, sorry - I have totally lost track of this. I need to look at another issue today, but will try to tweak it in between the other stuff ASAP.
>> 
>> Rainer
>> _______________________________________________
>> Lognorm mailing list
>> Lognorm at lists.adiscon.com
>> http://lists.adiscon.net/mailman/listinfo/lognorm
> 
> Thanks Rainer…I'll give this a shot when I get to work tomorrow.
> 
> James
> _______________________________________________
> Lognorm mailing list
> Lognorm at lists.adiscon.com
> http://lists.adiscon.net/mailman/listinfo/lognorm

Yea this TOTALLY worked…thanks a BUNCH Rainer!

James

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