From 439af62bca4794d78d53fb4634f560d6a75f0adb Mon Sep 17 00:00:00 2001 From: Vadim Kochan Date: Sat, 29 Jul 2017 12:46:09 +0300 Subject: 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 .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 Signed-off-by: Tobias Klauser --- trafgen_dev.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'trafgen_dev.h') diff --git a/trafgen_dev.h b/trafgen_dev.h index 6708eb8..80086d7 100644 --- a/trafgen_dev.h +++ b/trafgen_dev.h @@ -33,14 +33,14 @@ struct dev_io { struct dev_io_ops { int(*open) (struct dev_io *dev, const char *name, enum dev_io_mode_t mode); - int(*write) (struct dev_io *dev, const struct packet *pkt); + int(*write) (struct dev_io *dev, struct packet *pkt); struct packet *(*read) (struct dev_io *dev); int(*set_link_type) (struct dev_io *dev, int link_type); void(*close) (struct dev_io *dev); }; extern struct dev_io *dev_io_open(const char *name, enum dev_io_mode_t mode); -extern int dev_io_write(struct dev_io *dev, const struct packet *pkt); +extern int dev_io_write(struct dev_io *dev, struct packet *pkt); extern struct packet *dev_io_read(struct dev_io *dev); extern int dev_io_ifindex_get(struct dev_io *dev); extern int dev_io_fd_get(struct dev_io *dev); -- cgit v1.2.3-54-g00ecf