diff options
| author | Vadim Kochan <vadim4j@gmail.com> | 2017-07-29 12:46:09 +0300 |
|---|---|---|
| committer | Tobias Klauser <tklauser@distanz.ch> | 2017-08-10 09:03:46 +0200 |
| commit | 439af62bca4794d78d53fb4634f560d6a75f0adb (patch) | |
| tree | 346cc168c42bbe1d7f0eb6bd493d244016172a01 /trafgen_parser.y | |
| parent | 19348cec323373d84674c1d2cf34315cbf47c80d (diff) | |
trafgen: Dump proto headers in *.cfg format
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.
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.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'trafgen_parser.y')
| -rw-r--r-- | trafgen_parser.y | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/trafgen_parser.y b/trafgen_parser.y index 74015b5..38f170a 100644 --- a/trafgen_parser.y +++ b/trafgen_parser.y @@ -169,6 +169,8 @@ static inline void __setup_new_csum16(struct csum16 *s, off_t from, off_t to, struct packet *realloc_packet(void) { + uint32_t i; + if (test_ignore()) return NULL; @@ -185,6 +187,9 @@ struct packet *realloc_packet(void) __init_new_csum_slot(&packet_dyn[packetd_last]); __init_new_fields_slot(&packet_dyn[packetd_last]); + for (i = 0; i < plen; i++) + packets[i].id = i; + return &packets[packet_last]; } |