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Get shift from cpuheader def

This commit is contained in:
Nico Schottelius 2019-03-04 18:37:33 +01:00
parent b465b366ea
commit 816f11c864
1 changed files with 9 additions and 1 deletions
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10
p4app/controller.py
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@ -248,8 +248,16 @@ class L2Controller(object):
ether_part.type = cpu_header.type
bits = 0
for field in CpuHeader.fields_desc:
bits += field.sz
shift_by = (bits/8) -1
log.debug("Len of cpu= {}, {}, shift={}".format(bits, bits/8, shift_by)
ether_orig = Ether(src=packet.src, dst=packet.dst, type=0x86dd)
orig_packet = ether_orig / IPv6(packet.load[6:])
orig_packet = ether_orig / IPv6(packet.load[shift_by:])
log.debug("o={}".format(orig_packet.__repr__()))