lwIP - A Lightweight TCP/IP stack - Bugs: bug #58184, Incorrect generic trap conversion...
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bug #58184: Incorrect generic trap conversion to SNMP v2c trap
Submitter: | Harrold <harrold68> | ||
Submitted: | Wed 15 Apr 2020 11:56:08 AM UTC | ||
Category: | apps | Severity: | 3 - Normal |
Item Group: | Faulty Behaviour | Status: | None |
Privacy: | Public | Assigned to: | None |
Open/Closed: | Open | Planned Release: | None |
lwIP version: | git head |
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Implementation of generic traps conversion to SNMP v2c traps in function snmp_prepare_trap_oid() is not correctly. This function is using specific_trap, but according the comment above function snmp_send_trap_or_notification_or_inform_generic(), specific_trap is only used when generic_trap == 6. That is why function snmp_send_trap_generic() passes 0 as specific_trap.
I assume function snmp_prepare_trap_oid() should use generic_trap+1 instead of specific_trap+1 when generic_trap != 6 (SNMP_GENTRAP_ENTERPRISE_SPECIFIC).
Expected list of generic SNMP v2 traps
- coldStart 1.3.6.1.6.3.1.1.5.1
- warmStart 1.3.6.1.6.3.1.1.5.2
- linkDown 1.3.6.1.6.3.1.1.5.3
- linkUp 1.3.6.1.6.3.1.1.5.4
- authenticationFailure 1.3.6.1.6.3.1.1.5.5
- egpNeighborLoss 1.3.6.1.6.3.1.1.5.6
Currently al these traps emit 1.3.6.1.6.3.1.1.5.1