This makes conn.logs a bit prettier (and smaller) because all lines that
do not use a tunnel will now have a "-" instead of the "(empty)" for
tunnel_parents.
- Fix parsing of empty question sections (when QDCOUNT == 0). In this
case, the DNS parser would extract two 2-byte fields for use in either
"dns_query_reply" or "dns_rejected" events (dependent on value of
RCODE) as qclass and qtype parameters. This is not correct, because
such fields don't actually exist in the DNS message format when
QDCOUNT is 0. As a result, these events are no longer raised when
there's an empty question section. Scripts that depends on checking
for an empty question section can do that in the "dns_message" event.
- Add a new "dns_unknown_reply" event, for when Bro does not know how
to fully parse a particular resource record type. This helps fix a
problem in the default DNS scripts where the logic to complete
request-reply pair matching doesn't work because it's waiting on more
RR events to complete the reply. i.e. it expects ANCOUNT number of
dns_*_reply events and will wait until it gets that many before
completing a request-reply pair and logging it to dns.log. This could
cause bogus replies to match a previous request if they happen to
share a DNS transaction ID.
I'm merging in the documentation branch to avoid that it keeps getting
out of sync. We still need to work on this a bit more, I'll summarize
in a mail.
* origin/topic/documentation: (68 commits)
Going over initial parts of the scripting overview.
Adding lines in scripting/index.txt. No other change.
Updating submodule.
Pass over the Using Bro section.
Applying doc updates from BIT-1063. (Anthony Verez)
Breaking lines in using/*.
More doc reorg, and a light pass over the first 3 sections.
Starting to put a new structure in place.
Updating submodule(s).
Updating submodule(s).
Adding some temporary testing/demonstration to front page.
Switching btest to topic/robin/parts branch.
Basic cross-referencing UIDs between files, btests, and baselines.
A truly embarassing number of spelling corrections.
Using redirection with bro-cut. Include initial btests for this document.
Corrected a mis-typed RST include.
Initial start for "Using Bro".
Spelling corrections.
Include Notice Policy shortcuts in the Scripting User Manual.
Notice::policy hooks and tests.
...
Conflicts:
src/3rdparty
I made a light pass over the text. Switched the includes over to the
new btest-include and adapted the other TEXT-EXECs a bit.
Also includes more tweaking all over the Sphinx setup.
I edited the text little bit, reorganized the structure somewhat and
extended some parts. I've also simplified the tests a bit, using some
of the BTest tweaks commited in parallel.
