output/ipfix: flowDirection value placed in wrong field

[FestplattenSchnitzel]

ipfixprobe/init/link0.conf.example

Line 73 in 480f208

dir: 0 # Direction bit field value (0 = incoming, 1 = outgoing)

The configuration option output_plugin.ipfix.exporter.dir matches the semantic of the IPFIX flowDirection (61) field.

ipfixprobe/include/ipfixprobe/ipfix-elements.hpp

Line 88 in 480f208

#define INPUT_INTERFACE(F) F(0, 10, 4, &this->dir_bit_field)

However, the value is placed in the ingressInterface (10) field.

This leads to problems with flow collectors (e.g. Akvorado) as the value 0 is not allowed in this field, also see RFC 2863.