Lua packetlib/v4 #12568
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Lua packetlib/v4 #12568
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Example:
```
local packet = require "suricata.packet"
function init (args)
local needs = {}
return needs
end
function match (args)
p = packet.get()
payload = p:payload()
ts = p:timestring()
for line in payload:gmatch("([^\r\n]*)[\r\n]+") do
if line == "GET /index.html HTTP/1.0" then
ipver, srcip, dstip, proto, sp, dp = p:tuple()
SCLogNotice(string.format("%s %s->%s %d->%d (pcap_cnt:%d) match! %s", ts, srcip, dstip, sp, dp, p:pcap_cnt(), line));
return 1
end
end
return 0
end
```
Methods:
`get` creates the packet object.
`payload` returns the packet payload as a buffer
`packet` returns the whole packet (includes headers)
`pcap_cnt` returns the `pcap_cnt` (pcap file mode only)
`tuple` returns various fields: srcip, dstip, proto, sp, dp
`sp` returns source port
`dp` returns destination port
`timestamp` returns time as 2 numbers: seconds and microseconds
`timestring_legacy` returns a timestamp as a string (like fastlog)
`timestring_iso8601` returns a iso8601 compat timestring (like eve)
Ticket: OISF#7488.
Moving forward the packetlib is to be used. Ticket: OISF#7488.
Register internal libs for the case where loading external modules is allowed.
Closed
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #12568 +/- ##
=======================================
Coverage 80.70% 80.70%
=======================================
Files 928 929 +1
Lines 259013 259062 +49
=======================================
+ Hits 209033 209083 +50
+ Misses 49980 49979 -1
Flags with carried forward coverage won't be shown. Click here to find out more. |
|
WARNING:
Pipeline 24699 |
jasonish
approved these changes
Feb 12, 2025
Merged
|
Merged in #12569, thanks! |
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SV_BRANCH=OISF/suricata-verify#2285
Rebased #12551
Replaces
timestringwithtimestring_legacy(fastlog) andtimestring_iso8601(eve). Went with these as I realized eve has iso 8601 output as mentioned here 6c3c234https://redmine.openinfosecfoundation.org/issues/7488