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Dynamic alprotos : make SNMP totally dynamic v11 #12724

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catenacyber
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Link to ticket: https://redmine.openinfosecfoundation.org/issues/
https://redmine.openinfosecfoundation.org/issues/5053

Describe changes:

  • detect: fix overflow for files protocol as reported by coverity
  • snmp: register protocol dynamically, to do so :
    • make some arrays even more dynamic
    • add an helper function AppProtoNewProtoFromString
    • have plugins be able to log flow or packet direction

#12671 without SC_PLUGIN_API_VERSION bump

CID 1640392

Would happen only if we reached 15 protocols handling files
Ticket: 5053

Do not asume that we know the number of alprotos at the end
of AppLayerNamesSetup, but make arrays allocated by later
AppLayerProtoDetectSetup dynamic so that it can be reallocated
from AppLayerParserRegisterProtocolParsers

This helps have a single entry point for a protocol like SNMP
So that we do not have to know g_alproto_max to register
dynamically a new protocol from its name
Ticket: 5053

Move enum OutputJsonLogDirection and struct
EveJsonTxLoggerRegistrationData from C to rust
and cast

and also remove unneeded mut

and rustfmt
@catenacyber
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@jasonish what do you think ?
Especially commit rust: export C functions for dynamic alproto registration with your bindgen

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codecov bot commented Mar 6, 2025

Codecov Report

Attention: Patch coverage is 87.95181% with 10 lines in your changes missing coverage. Please review.

Project coverage is 80.92%. Comparing base (6477b31) to head (0e320ff).

Additional details and impacted files
@@            Coverage Diff             @@
##           master   #12724      +/-   ##
==========================================
+ Coverage   80.76%   80.92%   +0.16%     
==========================================
  Files         936      936              
  Lines      259724   259762      +38     
==========================================
+ Hits       209765   210213     +448     
+ Misses      49959    49549     -410     
Flag Coverage Δ
fuzzcorpus 57.26% <80.48%> (+0.38%) ⬆️
livemode 19.45% <57.31%> (+0.03%) ⬆️
pcap 44.25% <79.26%> (+0.11%) ⬆️
suricata-verify 63.68% <86.41%> (+0.05%) ⬆️
unittests 58.17% <57.31%> (+0.01%) ⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

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Information: QA ran without warnings.

Pipeline 25003

@catenacyber
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Next in #12732

@catenacyber catenacyber closed this Mar 7, 2025
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2 participants