X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=GPL%2Ftraffic_scripts%2Fsrv6_encap.py;h=9c4ea257a0530b83ad649e0ad358944a1923adee;hb=9c10745ce84d74ff5752aa3a19508cc731bba8b9;hp=725db9fc33ddd617bb7e0c6d2bbdbf59d282ae11;hpb=624e580159dc056035d7e962582e86a000f8c3d6;p=csit.git diff --git a/GPL/traffic_scripts/srv6_encap.py b/GPL/traffic_scripts/srv6_encap.py index 725db9fc33..9c4ea257a0 100644 --- a/GPL/traffic_scripts/srv6_encap.py +++ b/GPL/traffic_scripts/srv6_encap.py @@ -28,7 +28,7 @@ import sys from scapy.layers.inet6 import IPv6, ICMPv6ND_NS, IPv6ExtHdrSegmentRouting,\ - ipv6nh + ipv6nh, ICMPv6MLReport2, ICMPv6ND_RA from scapy.layers.l2 import Ether from scapy.packet import Raw @@ -255,9 +255,17 @@ def main(): if rx_pkt_recv.haslayer(ICMPv6ND_NS): # read another packet in the queue if the current one is ICMPv6ND_NS continue - else: - # otherwise process the current packet - break + elif rx_pkt_recv.haslayer(ICMPv6MLReport2): + # read another packet in the queue if the current one is + # ICMPv6MLReport2 + continue + elif rx_pkt_recv.haslayer(ICMPv6ND_RA): + # read another packet in the queue if the current one is + # ICMPv6ND_RA + continue + + # otherwise process the current packet + break check_srv6( rx_pkt_recv, rx_src_mac, rx_dst_mac, src_ip, dst_ip, dir0_srcsid, @@ -270,20 +278,20 @@ def main(): ip_pkt[Raw].load += (b"\0" * (size_limit - 14 - len(ip_pkt))) rx_pkt_send = ( - Ether(src=rx_dst_mac, dst=rx_src_mac) / - IPv6(src=dir1_srcsid, dst=dir1_dstsid1) / - IPv6ExtHdrSegmentRouting( - segleft=1 if dir1_dstsid3 == u"None" else 2, - lastentry=1 if dir1_dstsid3 == u"None" else 2, - addresses=[dir1_dstsid2, dir1_dstsid1] - if dir1_dstsid3 == u"None" - else [dir1_dstsid3, dir1_dstsid2, dir1_dstsid1] - ) / - ip_pkt + Ether(src=rx_dst_mac, dst=rx_src_mac) / + IPv6(src=dir1_srcsid, dst=dir1_dstsid1) / + IPv6ExtHdrSegmentRouting( + segleft=1 if dir1_dstsid3 == u"None" else 2, + lastentry=1 if dir1_dstsid3 == u"None" else 2, + addresses=[dir1_dstsid2, dir1_dstsid1] + if dir1_dstsid3 == u"None" + else [dir1_dstsid3, dir1_dstsid2, dir1_dstsid1] + ) / + ip_pkt ) if dir1_dstsid2 != u"None" else ( - Ether(src=rx_dst_mac, dst=rx_src_mac) / - IPv6(src=dir1_srcsid, dst=dir1_dstsid1) / - ip_pkt + Ether(src=rx_dst_mac, dst=rx_src_mac) / + IPv6(src=dir1_srcsid, dst=dir1_dstsid1) / + ip_pkt ) rx_txq.send(rx_pkt_send) @@ -296,9 +304,17 @@ def main(): if tx_pkt_recv.haslayer(ICMPv6ND_NS): # read another packet in the queue if the current one is ICMPv6ND_NS continue - else: - # otherwise process the current packet - break + elif tx_pkt_recv.haslayer(ICMPv6MLReport2): + # read another packet in the queue if the current one is + # ICMPv6MLReport2 + continue + elif tx_pkt_recv.haslayer(ICMPv6ND_RA): + # read another packet in the queue if the current one is + # ICMPv6ND_RA + continue + + # otherwise process the current packet + break if decap == u"True": check_ip(tx_pkt_recv, tx_dst_mac, tx_src_mac, dst_ip, src_ip)