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authorVadim Kochan <vadim4j@gmail.com>2016-12-18 11:52:49 +0200
committerTobias Klauser <tklauser@distanz.ch>2016-12-21 16:57:53 +0100
commit647b7b76d63f8c847b17495e6ad24dc3b256899f (patch)
tree4d4d488a0f65118cdaf45f381277408b9797364a /proto_ipv6_routing.c
parent44e97b2009dc2bee93f25684b274f458f50ea667 (diff)
trafgen: parser: Allow to set function at field offset
Extend proto field expression to: proto_field[{index}:{len}] = {func} which allows to specify function on the field offset via index and value length (default is 1 - 1 byte). This rule is optional. It was needed to keep of proto_field's copies in packet_dyn->fields instead of original fields which allows to scpecify different functions on the different parts of same field, also the copy of original proto_field allows to set custom length/pkt_offset which makes such field behave as virtual sub-field of the original one with different length/pkt_offset but point to the same piece of header. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'proto_ipv6_routing.c')
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