#5 segfault if IP capture disabled, accessing unallocated array

[John Hardin]

It looks like ctl_init_arrays() tries to clear out data structures (specifically, ctl.nk_array) that don't have memory allocated if IP capture is disabled with -x, leading to a segfault. Candidate patch attached.

[John Hardin]

Patch to skip access of unallocated ctl.nk_array

[John Hardin]

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and another one in util.c

This is pretty Q'n'D, I'd appreciate someone with a clearer mental model of LaBrea reviewing this.
Basically what I'm trying to do is modify LaBrea so it can tarpit traffic to just specific ports on only the local system - make it into a service tarpit in addition to a netblock scan tarpit.
File Added: util_nk_array-segfault.patch

[John Hardin]

[John Hardin]

Don't calculate offset into uninitialized array

[John Hardin]

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and clean up pkt_handler.c just a bit too.
File Added: pkt_handler-segfault.patch