def build_qinq_packet(outer_vlan_id,
vlan_id,
src_mac="00:22:00:00:00:02",
dst_mac="ff:ff:ff:ff:ff:ff",
src_ip="192.168.0.1",
dst_ip="192.168.0.2",
ttl=64):
pkt = testutils.simple_qinq_tcp_packet(eth_dst=dst_mac,
eth_src=src_mac,
dl_vlan_outer=outer_vlan_id,
vlan_vid=vlan_id,
ip_src=src_ip,
ip_dst=dst_ip,
ip_ttl=ttl)
return pkt
def craft_packet(src_mac,
dst_mac,
dst_ip,
ip_version,
stage,
tagged_mode,
vlan_id=10,
outer_vlan_id=0,
pkt_type=None):
"""
Generate IPV4/IPV6 packets with single or double Vlan Header
Args:
src_mac: Source MAC address
dst_mac: Dest MAC address
dst_ip: IP address of packet
ip_version: Ip version of packet that should be generated
stage: ingress or egress
tagged_mode: TAGGED or UNTAGGED
vlan_id: Vlan Id number
dl_vlan_outer: Outer Vlan ID
pkt_type: packet type to be created
Returns:
QinQ or TCP packet
"""
DUMMY_IP = '8.8.8.8'
exp_pkt_with_tag = tagged_mode in [TYPE_TAGGED, TYPE_COMBINE_TAGGED]
if ip_version == IPV4:
if pkt_type == 'qinq':
pkt = testutils.simple_qinq_tcp_packet(eth_src=src_mac,
eth_dst=dst_mac,
dl_vlan_outer=outer_vlan_id,
vlan_vid=vlan_id,
ip_src=DUMMY_IP,
ip_dst=dst_ip)
if exp_pkt_with_tag:
exp_pkt = testutils.simple_tcp_packet(
pktlen=96, # Default len (100) - Dot1Q len (4)
eth_src=src_mac,
eth_dst=dst_mac,
dl_vlan_enable=True,
vlan_vid=vlan_id,
ip_src=DUMMY_IP,
ip_dst=dst_ip)
else:
exp_pkt = pkt
else:
pkt = testutils.simple_tcp_packet(eth_src=src_mac,
eth_dst=dst_mac,
ip_src=DUMMY_IP,
ip_dst=dst_ip)
if exp_pkt_with_tag:
exp_pkt = testutils.simple_tcp_packet(
pktlen=104, # Default len(100) + Dot1Q len (4)
eth_src=src_mac,
eth_dst=dst_mac,
dl_vlan_enable=True,
vlan_vid=outer_vlan_id,
ip_src=DUMMY_IP,
ip_dst=dst_ip)
else:
exp_pkt = pkt.copy()
exp_pkt = mask.Mask(exp_pkt)
exp_pkt.set_do_not_care_scapy(Ether, 'src')
exp_pkt.set_do_not_care_scapy(Ether, 'dst')
exp_pkt.set_do_not_care_scapy(IP, 'ttl')
exp_pkt.set_do_not_care_scapy(IP, 'chksum')
else:
pkt = testutils.simple_tcpv6_packet(eth_src=src_mac,
eth_dst=dst_mac,
dl_vlan_enable=True,
vlan_vid=outer_vlan_id,
ipv6_dst=dst_ip)
if exp_pkt_with_tag:
exp_pkt = testutils.simple_tcpv6_packet(
pktlen=96, # Default len (100) - Dot1Q len (4)
eth_src=src_mac,
eth_dst=dst_mac,
ipv6_dst=dst_ip)
else:
exp_pkt = pkt
return pkt, exp_pkt
