This adds a new parameter of type "icmp6_nd_options" to the ICMPv6
neighbor discovery events (icmp_redirect, icmp_router_solicitation,
icmp_router_advertisement, icmp_neighbor_solicitation,
icmp_neighbor_advertisement) which includes data extracted from
all neighbor discovery options (RFC 4861) that are present in the
ICMPv6 message.
- The 'icmp_conn' record now contains an 'hlim' field since hop limit
in the IP header is an interesting field for at least these ND
messages.
- Changed 'icmp_router_advertisement' event parameters.
'router_lifetime' is now an interval. Fix 'reachable_time' and
'retrans_timer' using wrong internal Val type for intervals.
Made more of the known router advertisement flags available through
boolean parameters.
- Changed 'icmp_neighbor_advertisement' event parameters to add
more of the known boolean flags.
- Add more guards against trying to analyze captured packets with a
truncated IPv6 static header or extension header chain.
- Add back in the ICMP payload tracking for ICMP "connections".
- Fix 'icmp_context' record construction. Some field assignments
were mismatched for ICMP and ICMP6. Source and destination
addresses were set incorrectly for context packets that don't
contain a full IP header. Some fields for ICMP6 weren't filled out.
- Changed ICMP Time Exceeded packets to raise the 'icmp_time_exceeded'
event instead of 'icmp_error_message'.
- Add unit tests for truncation and the main types of ICMP/ICMP6
that have specific events.
- Documentation clarifications.
