This patch allows users to provide the fuid or the connection id
directly, in case they do not have access to either in the event that
they handle.
An example for this is the handling of certificates in SSL, where the
fa_file record cannot be retained because this would create a cyclic
data structure.
This patch also provides file IDs for hostname matches in certificates,
which was not possible with the previous API.
Broke out the stats collection into a bunch of new Bifs
in stats.bif. Scripts that use stats collection functions
have also been updated. More work to do.
- Removed the gap_report event. It wasn't used anymore
and functionally no more capable that scheduling events
and using the get_gap_summary bif.
- Added functionality to Dictionaries to count cumulative
numbers of inserts performed. This is further used to
measure the total number of connections of various types.
Previously only the number of active connections was
available.
- The Reassembler base class now tracks active reassembly
size for all subclasses (File/TCP/Frag & unknown).
- Improvements to the stats.log. Mostly, more information.
Lowered priority of a connection_state_remove event handler to ensure
that the "conn" field is initialized in the connection record before
attempting to add the VLAN tags.
Switching from using the http_all_headers() event to
http_message_done(). That delays it a bit, but is the less expensive
event.
* 'topic/jgras/flash-detection' of https://github.com/J-Gras/bro:
Updated detection of Flash and AdobeAIR.
* 'master' of https://github.com/aaronmbr/bro:
Copy-paste issue
Allow for logging of the VLAN data about a connection in conn.log
Save the inner vlan in the Packet object for Q-in-Q setups
* origin/fastpath:
Update usage output and list of cmd-line options
A small fix to ssh/geo-data.bro. ssh can now be unset for local-local or remote-remote, so make the script deal with this.
* origin/topic/seth/rdp: (31 commits)
Improved transition into SSL/TLS from RDP.
Fixes tests in RDP branch.
add a special case to the X509 code that deals with RDP certificates.
A few more changes to handling encryption in RDP.
Adds some comments and fixes a broxygen warning.
Fixes another optional part of an RDP unit.
Support RDP negotiation requests optionally and support zero length cookies.
Changed UTF-16 to UTF-8 conversion to be more lenient.
Fixed an issue with parse failure on an optional field.
Removing a stray printf from RDP analyzer.
Another big RDP update.
New script to add a field to rdp.log when the connection is upgraded to SSL.
Huge updates to the RDP analyzer from Josh Liburdi.
FreeRDP test trace showing SSL encryption -- RDP analyzer does not currently handle this and SSL analyzer does not identify it either
Wireshark test trace for native encryption -- generates a binpac error
Delete RDP-004.pcap
Delete nla_win7_win2k8r2.pcap
Update dpd.sig
Fixed typo
Added check for connection existence
...
BIT-1340 #merged
- Some scripts used wrong SSH module/namespace scoping on events.
- Fix outdated notice documentation related to SSH password guessing.
- Add a unit test for SSH pasword guessing notice.
I replaced a few strcmps with either calls to std::str.compare
or with the == operator of BroString.
Also changed two of the input framework tests that did not pass
anymore after the merge. The new SSH analyzer no longer loads the
scripts that let network time run, hence those tests failed because
updates were not propagated from the threads (that took a while
to find.)
* origin/topic/vladg/ssh: (25 commits)
SSH: Register analyzer for 22/tcp.
SSH: Add 22/tcp to likely_server_ports
SSH: Ignore encrypted packets by default.
SSH: Fix some edge-cases which created BinPAC exceptions
SSH: Add memleak btest
SSH: Update baselines
SSH: Added some more events for SSH2
SSH: Intel framework integration (PUBKEY_HASH)
Update baselines for new SSH analyzer.
Update SSH policy scripts with new events.
SSH: Add documentation
Refactoring ssh-protocol.pac:
SSH: Use the compression_algorithms const in another place.
Some cleanup and refactoring on SSH main.bro.
SSH: A bit of code cleanup.
Move SSH constants to consts.pac
SSH: Cleanup code style.
SSH: Fix some memleaks.
Refactored the SSH analyzer. Added supported for algorithm detection and more key exchange message types.
Add host key support for SSH1.
Add support for SSH1
Move SSH analyzer to new plugin architecture.
...
Conflicts:
scripts/base/protocols/ssh/main.bro
testing/btest/Baseline/core.print-bpf-filters/output2
testing/btest/Baseline/plugins.hooks/output
BIT-1344: #merged
This allows the path for the default filter to be specified explicitly
when creating a stream and reduces the need to rely on the default path
function to magically supply the path.
The default path function is now only used if, when a filter is added to
a stream, it has neither a path nor a path function already.
Adapted the existing Log::create_stream calls to explicitly specify a
path value.
Addresses BIT-1324
* origin/topic/johanna/cert-validation:
and still use the hash for notice suppression.
add knob to revert to old validation behavior
Update certificate validation script - new version will cache valid intermediate chains that it encounters on the wire and use those to try to validate chains that might be missing intermediate certificates.
BIT-1332 #merged
intermediate chains that it encounters on the wire and use those to try
to validate chains that might be missing intermediate certificates.
This vastly improves the number of certificates that Bro can validate.
The only drawback is that now validation behavior is not entirely
predictable anymore - the certificate of a server can fail to validate
when Bro just started up (due to the intermediate missing), and succeed
later, when the intermediate can be found in the cache.
Has been tested on big-ish clusters and should not introduce any
performance problems.
* origin/topic/johanna/x509-cn:
Use our new features to send the CN and SAN fields of certificates to the intel framework.
Do not log common name by default (it is most interesting for scripts) and add a test case.
extract most specific common name from certificates
BIT-1323 #merged
* origin/topic/johanna/ssl-policy:
Extend the weak-keys policy file to also alert when encountering ssl connections with old versions as well as unsafe cipher suites.
BIT-1321 #merged
ssl connections with old versions as well as unsafe cipher suites.
Also make the notice suppression handling of other ssl policy files
a tad more robust.
