class PacketGen::Header::OSPFv2::LSAck
This class handles {OSPFv2 OSPFv2} LS Acknowledgment packets payload. The LS Acknowledgment payload has the following format:
0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | +- -+ | | +- An LSA Header -+ | | +- -+ | | +- -+ | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | ... |
This paylod is implemented as a unique field: {#lsas}, which is an {ArrayOfLSA} object.
Create a LSAck
payload¶ ↑
# standalone lsack = PacketGen::Header::OSPFv2::LSAck.new # in a packet pkt = PacketGen.gen('IP', src: source_ip).add('OSPFv2').add('OSPFv2::LSAck') # access to LSAck payload lasck = pkt.ospfv2_lsack # => PacketGen::Header::OSPFv2::LSAck
Adding LSA
headers to a LSAck
payload¶ ↑
lsack.lsas << { type: 'Router', age: 40, link_state_id: '0.0.0.1', advertising_router: '1.1.1.1', sequence_number: 42, checksum: 0x1234, length: 56 } # a header may also be set from an existing lsa lasck.lsas << existing_lsa.to_lsa_header
@author Sylvain Daubert