Extend field expression with the following syntax:
<field>[<index>] | <field>[<index>:<length>]
which allows to specify value or function at specified offset relative to the
field's offset within a header.
The trick to implement this was to use copies of proto_field instances
in the packet_dyn->fields array which allows to specify different functions
for the same field and with different offsets.
Vadim Kochan (7):
trafgen: parser: Rename field_expr -> field_value_expr rule
trafgen: proto: Change __proto_field_set_bytes(...) to take field
trafgen: proto: Rename proto_field_xxx -> proto_hdr_field_xxx
trafgen: proto: Add proto field only setters/getters
trafgen: parser: Parse IPv6 address by strict match pattern
trafgen: parser: Allow to set value/func at field offset
man: trafgen: Add short description about field offset using
trafgen.8 | 25 +++++++
trafgen_l2.c | 44 +++++------
trafgen_l3.c | 24 +++---
trafgen_l4.c | 28 +++----
trafgen_lexer.l | 51 ++++++++++++-
trafgen_parser.y | 164 +++++++++++++++++++++++++++++------------
trafgen_proto.c | 217 +++++++++++++++++++++++++++++++++++--------------------
trafgen_proto.h | 64 +++++++++-------
8 files changed, 412 insertions(+), 205 deletions(-)
--
2.10.2
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