ipfw: Teach ipfw that EtherIP is an upper layer protocol
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Authored by zlei on Tue, Sep 16, 2:40 AM.

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Commits

rG1a9f9b4e38c3: ipfw: Teach ipfw that EtherIP is an upper layer protocol
rGb4c6c3db0379: ipfw: Teach ipfw that EtherIP is an upper layer protocol
rGb1c96e54b906: ipfw: Teach ipfw that EtherIP is an upper layer protocol
rG0418e6690e91: ipfw: Teach ipfw that EtherIP is an upper layer protocol

Summary

so that we do not discard EtherIP packets ( over IPv6 network ) when
net.inet6.ip6.fw.deny_unknown_exthdrs is set to 1 (which is the default value ).

PR: 227450
MFC after: 1 week

Test Plan

# kenv net.inet.ip.fw.default_to_accept=1
net.inet.ip.fw.default_to_accept="1"
# kldload ipfw
# sysctl net.inet6.ip6.fw.deny_unknown_exthdrs
net.inet6.ip6.fw.deny_unknown_exthdrs: 1
# cd /usr/tests/sys/net
# kyua test -k Kyuafile if_gif
if_gif:4in4  ->  passed  [0.163s]
if_gif:4in6  ->  passed  [0.119s]
if_gif:6in4  ->  passed  [0.117s]
if_gif:6in6  ->  passed  [0.130s]
if_gif:etherip  ->  passed  [0.177s]
if_gif:etherip6  ->  passed  [0.178s]

Results file id is tmp_tests_sys_net.20250916-023108-163698
Results saved to /root/.kyua/store/results.tmp_tests_sys_net.20250916-023108-163698.db

6/6 passed (0 broken, 0 failed, 0 skipped)