trafgen: parser: Add syntax to generate Ethernet header fields

Add function 'eth()' to support generating Ethernet header fields from the
trafgen configuration language.

Supported fields:

    da|daddr    destination address, default: 00:00:00:00:00:00
    sa|saddr    source address, default: device MAC
    prot|proto  protocol number, default: 0x0000

Example usage:

    { eth(prot=0x0800, da=11:22:33:44:55:66), fill(0xff, 60) }
    { eth(prot=0x0800) }
    { eth() }

It is important that proto_init is called before fields will be filled
to initialize the specified proto with header fields.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: document supported keywords in commit message]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

0 files changed, 0 insertions, 0 deletions