Added trafgen_dump.c module which dumps headers from packet
in .cfg format. Packet is dumped if -o <file>.cfg was specified,
it might be useful to specify *.pcap file as input and convert it
into .cfg file to edit proto fields in human readable format.
To make it possible several main changes were added:
1) packet id is embedded into struct packet.id, and
it is updated on each realloc_packet()
2) Added new struct proto_hdr.get_next_proto callback
to make possible apply fields of next header.
3) Added new dev_io ops for writting packets into .cfg file,
to re-use common dev_io mechsnism for packets dumping.
4) Changed dev_io ops read/write to specify struct packet * instead of
buf & count.
5) Updated trafgen_proto.c to obtain packet from the header if possible to
do not depend on last packet, which is not right way to get related
packet.
Before dump the default ETH_PROTO fields are applied as first header and
then next proto_hdr is identified via .get_next_proto(...) callback.
Meanwhile only eth, arp, vlan, ip4, udp, & tcp protos can be dissected
into *.cfg format.
Vadim Kochan (3):
trafgen: Get packet from proto_hdr if possible
trafgen: dev_io: Change read/write to specify struct packet *
trafgen: Dump proto headers in *.cfg format
trafgen.8 | 4 +-
trafgen.c | 79 +++++++----------
trafgen/Makefile | 1 +
trafgen_conf.h | 4 +-
trafgen_dev.c | 78 +++++++++++++----
trafgen_dev.h | 12 +--
trafgen_dump.c | 256 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
trafgen_dump.h | 8 ++
trafgen_l2.c | 33 +++++++
trafgen_l3.c | 25 +++++-
trafgen_l4.c | 4 +-
trafgen_parser.y | 11 ++-
trafgen_proto.c | 79 +++++++++++++++--
trafgen_proto.h | 10 +++
14 files changed, 517 insertions(+), 87 deletions(-)
create mode 100644 trafgen_dump.c
create mode 100644 trafgen_dump.h
--
2.9.3
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