[Oisf-devel] TLS Buffers for LUA Scripting?

[Peter Manev]

On Tue, 2015-12-29 at 20:28 +0000, Nasir Bilal wrote:
> Great. BTW the new TLS buffers work great! Here's an example of a
> working sample Lua script used to test the new functionality:
> 
> 
> Suricata Rule:
> ##############
> 
> reject tls $EXTERNAL_NET any -> $HOME_NET any (msg:"HTTPS SPORTS -
> DROPPED"; flow:established; luajit:bl_sports_https.lua; sid:10001008;
> rev:1;)
> 
> ##############
> 
> Lua Script: (bl_sports_https.lua)
> ##############
> function init (args)
>     local needs = {}
>     needs["tls.subject"] = tostring(true)
>     return needs
> end
> 
> 
> function match(args)
>         file = assert(io.open("blacklists/sports/domains", "r"))
>         current_url = tostring(args["tls.subject"])
>         if #current_url > 0 then
>                 for line in file:lines() do
>                         if current_url:find(line) then
>                                 return 1
>                         end
>                 end
>         end
> return 0
> end
> ##############
> 
> 
> NOTE: the "blacklists/sports/domains" file is just a flat text file
> containing all the pages we wish to block in this test.
> 
> 
> Regards,
> Nasir
> 
> On Tue, Dec 29, 2015 at 12:40 PM Jason Ish <lists at unx.ca> wrote:
> 
>         On Tue, Dec 29, 2015 at 10:58 AM, Nasir Bilal
>         <bilalbox at gmail.com> wrote:
>         > Jason,
>         >
>         > Thanks, that's great! Yes, we should update the
>         documentation. Is that
>         > something anybody can do?

FYI (not sure if you have seen it) - There is some documentation here
- 
https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Lua_Output#TLS


>         
>         Yes, I believe you just need an account on Redmine.  The docs
>         are
>         migrating to Sphinx and updates will be handled with pull
>         requests at
>         some point in the hopefully near future. But for now I have a
>         "watch"
>         on the Wiki to migrate changes made by others.
>         
>         Jason
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