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Improve handling of IPv6 routing type 0 extension headers.

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- flow_weird event with name argument value of "routing0_hdr" is raised
  for packets containing an IPv6 routing type 0 header because this
  type of header is now deprecated according to RFC 5095.

- packets with a routing type 0 header and non-zero segments left
  now use the last address in that header in order to associate
  with a connection/flow and for calculating TCP/UDP checksums.

- added a set of IPv4/IPv6 TCP/UDP checksum unit tests
This commit is contained in:
Jon Siwek 2012-03-27 16:05:45 -05:00
parent d889f14638
commit f4101b5265
39 changed files with 171 additions and 121 deletions
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15
testing/btest/core/checksums.test Normal file
View file

@ -0,0 +1,15 @@
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip4-bad-chksum.pcap >>bad.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip4-tcp-bad-chksum.pcap >>bad.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip4-udp-bad-chksum.pcap >>bad.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip6-route0-tcp-bad-chksum.pcap >>bad.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip6-route0-udp-bad-chksum.pcap >>bad.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip6-tcp-bad-chksum.pcap >>bad.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip6-udp-bad-chksum.pcap >>bad.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip4-tcp-good-chksum.pcap >>good.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip4-udp-good-chksum.pcap >>good.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip6-route0-tcp-good-chksum.pcap >>good.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip6-route0-udp-good-chksum.pcap >>good.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip6-tcp-good-chksum.pcap >>good.out 2>&1
# @TEST-EXEC: bro -b -r $TRACES/chksums/ip6-udp-good-chksum.pcap >>good.out 2>&1
# @TEST-EXEC: btest-diff bad.out
# @TEST-EXEC: btest-diff good.out