Mon::SNMP(3pm)

💖 Mon::SNMP 💖

okay bestie, gather round, because this is Mon::SNMP — a Perl module from the User Contributed Perl Documentation collection, and its whole entire job is decoding SNMP traps. she's giving niche-but-useful, and honestly? we stan a specialist. 🎀

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✨ NAME ✨

Mon::SNMP — decode SNMP trap 🪤✨

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🌸 SYNOPSIS 🌸

use Mon::SNMP;

$trap = new Mon::SNMP;

$trap->buffer($snmptrap);

%traphash = $trap->decode;

$error = $trap->error;

literally that's the whole vibe check. load it, make one, feed it a trap, decode it, check the error. 💅

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🦋 DESCRIPTION 🦋

so Mon::SNMP hands you methods to decode SNMP trap PDUs. it's built on top of Graham Barr's Convert::BER module, and the whole reason it exists is to give SNMP trap handling to "mon". 🫶

and now the honest part, no cap:

it is not complete, so don't even bother trying to use it unless you are ready to debug and write some code. 😭 she is a work in progress, bestie, and you will be getting your hands dirty. that's the deal.

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👑 METHODS 👑

new

creates a brand new Mon::SNMP object. fresh out the box, ready to serve. ✨

buffer ( buffer )

assigns a raw SNMP trap message to the object. like, you hand her the raw bytes, she holds onto them. 🎀

decode

decodes a SNMP trap message, and returns a hash of the variable assignments for the SNMP header and the trap protocol data unit of the associated message. 🌈

the hash is made up of these members, and we're listing every single one because that's just good manners:

version         =>      SNMP version (1)
community       =>      community string
ent_OID         =>      enterprise OID of originating agent
agentaddr       =>      IP address of originating agent
generic_trap    =>      /COLDSTART|WARMSTART|LINKDOWN|LINKUP|AUTHFAIL|EGPNEIGHBORLOSS|ENTERPRISESPECIFIC/
specific_trap   =>      specific trap type (integer)
timeticks       =>      timeticks (integer)
varbindlist     =>      { oid1 => value, oid2 => value, ... }

version, community, ent_OID, agentaddr, generic_trap, specific_trap, timeticks, varbindlist. that's the whole roster, no additions, no cuts. 💖

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💀 ERRORS 💀

all methods return a hash with no elements upon errors which they detect, and the detail of the error is available from the

okay so. 😭 that sentence genuinely just ends in the source. it stops at "available from the". i am not going to invent a noun for it, because that would be lying to you and we don't do that here. that's the text. she's mysterious. iconic behavior honestly. ✨

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🍓 EXAMPLES 🍓

here's the demo, straight up:

use Mon::SNMP;

$trap = new Mon::SNMP;

$trap->buffer($snmptrap);

%traphash = $trap->decode;

foreach $oid (keys $traphash{"varbindlist"}) {
    $val = $traphash{"varbindlist"}{$oid};
    print "oid($oid) = val($val)\n";
}

see how she loops the varbindlist keys and prints each oid with its val? that's the whole trick. ate. 🔥

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🌈 ENVIRONMENT 🌈

None.

literally nothing. no environment variables, no secret knobs, no nothing. a clean girl. 🧚

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⭐ SEE ALSO ⭐

• Graham Barr's Convert::BER module. — she does the heavy lifting, iykyk 💜

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🎀 NOTES 🎀

this section is here. it is empty. i'm not adding anything to it because the original didn't, and we respect the source in this house. sometimes the most powerful statement is saying nothing. 💅✨

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🔥 CAVEATS 🔥

Mon::SNMP depends upon Convert::BER to do the real work. periodt. she's the face, Convert::BER is the engine. 🏎️

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and that's the whole page, bestie! 🫶 this was Mon::SNMP from the User Contributed Perl Documentation, perl v5.32.0, dated 2021-01-04 — mwah, go decode some traps, you've got this. 💖✨🎀