trafgen: proto: Add ICMPv4 header generation

Support for generating ICMPv4 headers using the 'icmp4()/icmpv4()'
trafgen generation functions.

Fields supported:

    type      Set type field (default 0: Echo reply)
              Supported keywords: echorequest, echoreply
    code      Set code field (default 0)
    csum      Set checksum field (calculated by default)
    mtu	      Set mtu field for destination unreachable (default 0)
    seq	      Set sequence field (default 0)
    id        Set identifier field (default 0)
    addr      Set redirect address (default 0.0.0.0)

Example (send ping request):

  { icmpv4(echorequest, seq=1, id=1326) }

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: squash commits, consistency between functionality and docu]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

0 files changed, 0 insertions, 0 deletions