Added a generic gtpv1_message event generated for any GTP message type.
Added specific events for the create/update/delete PDP context
request/response messages.
Addresses #934.
This currently supports automatic decapsulation of GTP-U packets on
UDP port 2152.
The GTPv1 headers for such tunnels can be inspected by handling the
"gtpv1_g_pdu_packet" event, which has a parameter of type "gtpv1_hdr".
Analyzer and test cases are derived from submissions by Carsten Langer.
Addresses #690.
- Renamed many data structures to align with most recent standard.
- Reworked modbus events to make them more canonically "Bro".
- Converted the Modbus analyzer to a simpler style for easier maintenance.
- Modbus coil related events still don't work (I haven't finished the
function for converting the data structures).
- Modbus file record events remain incomplete.
conn.log now sets a field indicating all the parent tunnel UIDs over
which a connection operated and cross reference the UIDs found in
the tunnel.log.
Also some renaming of tunnel related types at the scripting layer.
- AYIYA works.
- AYIYA analyzed connections are still labelled wrong in conn.log (logged as syslog)
- Some clean up for left over code.
- Small refactoring to pass packets back from analyzers to core.
- $uid is now optional in conn logs since ip-in-ip tunnel parent's
won't have an actual connection.
UDP tunnel support removed for now, to be re-added in specific
analyzers later, but IP-in-IP is now decapsulated recursively
so nested tunnels can be seen and the inner packets get sent
through the IP fragment reassembler if necessary.
Conflicts:
doc/scripts/DocSourcesList.cmake
scripts/base/init-bare.bro
src/ConnCompressor.cc
src/Sessions.cc
Just trying to bring topic/gregor/tunnel up to date in this new branch.
Compiles, but untested.
I copied the code over manually, no merging, because (1) it needed to
be adapted to the new threading API, and (2) there's more stuff in the
branch that I haven't ported yet.
The DS output generally seems to work, but it has seen no further
testing yet.
Not unit tests yet either.
support reading from commands by adppending | to the filename.
support streaming reads from command.
Fix something to make rearead work better. (magically happened)
Note that fdstream.h is from boost and has a separate license:
* (C) Copyright Nicolai M. Josuttis 2001.
* Permission to copy, use, modify, sell and distribute this software
* is granted provided this copyright notice appears in all copies.
* This software is provided "as is" without express or implied
* warranty, and with no claim as to its suitability for any purpose.
compiles, not really tested.
basic test works 70% of the time, coredumps in the other 30 - but was not easy to debug on a first glance (most interestingly the crash happens in the logging framework - I wonder how that works).
Other tests are not adjusted to the new interface yet.
* change internal reader interface again
* remove some quite embarassing bugs that must have been in the interface for rather long
* add different read methods to script & internal interface (like normal, streaming, etc). Not implemented in ascii reader yet.
Checkpoint.
Decapsulation happens after IP Defragmentation. The "identity" of the
enclosing tunnel (the "parent") is added to the connection record of the
child (tunneled) connection as an optional field $tunnel_parent.
- Moving all functions into the Log::* namespace, using the recent
bifcl updates. Moved logging-specific stuff to logging.bif.
- Log::create_stream() now takes a record Log::Stream as its second
argument, which specifies columns and (optionally) the event.
- All the internal BiFs are now called "Log::__<something>", with
script-level wrappers "Log::<something>". That first allows to add
additional code at the script-level, and second makes things better
comprehendible as now all relevant functionality is collected (and
later documetned) in policy/logging.bro.
- New function Log::flush(id), which does the obvious assuming the
writer supports it.
- add_default_filter() is now called implicitly with every
create_stream(). Seems that we usually want that functionality, and
when not, remove_default_filter() gets rid of it.
- The namespace of a stream's ID is now used as the default "path"
(e.g., if the namespace is SSH, the default log file is "ssh.log").
- Updated policy/test-logging.bro as well as the btest tests according
to these changes.
