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2016-02-02trafgen: eth: Add setting next protocol idVadim Kochan1-1/+23
Move setting next protocol id field from higher protocols (ARP, IPv4) to Ethernet. It makes code little more generic w/o checking each lower protocol and setting specific field id. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-02-02trafgen: proto: Add set_next_proto callback to struct proto_hdrVadim Kochan1-1/+1
Add set_next_proto callback to proto_hdr struct to allow lower protocol set next protocol id by enum proto_id. Extended proto_lower_default_add(...) function to take upper protocol to delegate it's id to lower protocol to set next protocol field. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-02-02trafgen: proto: Simplify getting lower protocol after initVadim Kochan1-3/+1
Change proto_header_init(...) and proto_lower_default_add(...) functions to return struct proto_hdr * to do not call proto_current_header(...) after, so it makes more sense to get struct proto_hdr * right after initializing protocol by id. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-01-29trafgen: l2: Make needlessly global symbol eth_fields staticTobias Klauser1-1/+1
This fixes the following sparse warning: trafgen_l2.c:13:20: warning: symbol 'eth_fields' was not declared. Should it be static? Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-01-29trafgen: parser: Support "etype"/"type" keywords for EthertypeTobias Klauser1-2/+2
The IEEE 802.3 standard commonly refers to the field specifying the upper layer protocol as Ethertype, not protocol. Thus, also support the keywords "etype" and "type" for this field. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-01-28trafgen: l2: Add ARP header generation logicVadim Kochan1-0/+50
Add ARP protocol header fields generation. By default htype ethernet (1) and ptype IPv4 (0x0800) and the corresponding hlen/plen values will be initialized and the opcode is set to ARP Request (1). Source MAC and IP address are set to the device's addresses if not specified. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> [tk: rephrase and extend commit message] Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-01-28trafgen: l2: Add Ethernet protocol header generationVadim Kochan1-0/+32
Add trafgen_l2.c module for generating L2 related headers. Add Ethernet header generating. By default source MAC address is used from the specified output device. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>