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Merge remote-tracking branch 'origin/master' into topic/vladg/kerberos

Browse source 
Conflicts:
	testing/btest/Baseline/core.print-bpf-filters/output2
	testing/btest/Baseline/scripts.policy.misc.dump-events/smtp-events.log
This commit is contained in:
Vlad Grigorescu 2015-01-13 14:46:18 -05:00
commit 2c8a3fce49
156 changed files with 3758 additions and 1614 deletions
Download patch file Download diff file Expand all files Collapse all files

159
CHANGES
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@ -1,4 +1,163 @@
2.3-376 | 2015-01-12 09:38:10 -0600
* Improve documentation for connection_established event. (Jon Siwek)
2.3-375 | 2015-01-08 13:10:09 -0600
* Increase minimum required CMake version to 2.8. (Jon Siwek)
2.3-374 | 2015-01-07 10:03:17 -0600
* Improve documentation of the Intelligence Framework. (Daniel Thayer)
2.3-371 | 2015-01-06 09:58:09 -0600
* Update/improve file mime type identification. (Seth Hall)
- Change to the default BOF buffer size to 3000 (was 1024).
- Reorganized MS signatures into a separate file.
- Remove all of the x-c detections. Nearly all false positives.
- Improve TAR detections, removing old, back up TAR detections.
- Remove one of the x-elc detections that was too loose
and caused many false positives.
- Improved lots of the signatures and added new ones. (Seth Hall)
* Add support for file reassembly in the file analysis framework
(Seth Hall, Jon Siwek).
- The reassembly behavior can be modified per-file by enabling or
disabling the reassembler and/or modifying the size of the
reassembly buffer.
- Changed the file extraction analyzer to use stream-wise input to
avoid issues with the chunk-wise approach not immediately
triggering the file_new event due to mime-type detection delay.
Before, early chunks frequently ended up lost. Extraction also
will now explicitly NUL-fill gaps in the file instead of
implicitly relying on pwrite to do it.
2.3-349 | 2015-01-05 15:21:13 -0600
* Fix race condition in unified2 file analyzer startup. (Jon siwek)
2.3-348 | 2014-12-31 09:19:34 -0800
* Changing Makefile's test-all to run test-all for broctl, which now
executes trace-summary tests as well. (Robin Sommer)
2.3-345 | 2014-12-31 09:06:15 -0800
* Correct a typo in the Notice framework doc. (Daniel Thayer)
2.3-343 | 2014-12-12 12:43:46 -0800
* Fix PIA packet replay to deliver copy of IP header. This prevented
one from writing a packet-wise analyzer that needs access to IP
headers and can be attached to a connection via signature match.
Addresses BIT-1298 (Jon Siwek)
2.3-338 | 2014-12-08 13:56:19 -0800
* Add man page for Bro. (Raúl Benencia)
* Updating doc baselines. (Robin Sommer)
2.3-334 | 2014-12-03 14:22:07 -0800
* Fix compound assignment to require proper L-value. Addresses
BIT-1295. (Jon Siwek)
2.3-332 | 2014-12-03 14:14:11 -0800
* Make using local IDs in @if directives an error. Addresses
BIT-1296. (Jon Siwek)
2.3-330 | 2014-12-03 14:10:39 -0800
* Fix some "make doc" warnings and update some doc tests. (Daniel
Thayer)
2.3-328 | 2014-12-02 08:13:10 -0500
* Update windows-version-detection.bro to add support for
Windows 10. (Michal Purzynski)
2.3-326 | 2014-12-01 12:10:27 -0600
* BIFScanner: fix invalid characters in generated preprocessor macros.
(Hilko Bengen)
* BIT-1294: fix exec.bro from mutating Input::end_of_data event
parameters. (Johanna Amann)
* Add/invoke "distclean" for testing directories. (Raúl Benencia)
* Delete prebuilt python bytecode files from git. (Jon Siwek)
* Add Windows detection based on CryptoAPI HTTP traffic as a software
framework policy script. (Vlad Grigorescu)
2.3-316 | 2014-11-25 17:35:06 -0800
* Make the SSL analyzer skip further processing once encountering
situations which are very probably non-recoverable. (Johanna
Amann)
2.3-313 | 2014-11-25 14:27:07 -0800
* Make SSL v2 protocol tests more strict. In its former state they
triggered on http traffic over port 443 sometimes. Found by Michał
Purzyński. (Johanna Amann)
* Fix X509 analyzer to correctly return ECDSA as the key_type for
ECDSA certs. Bug found by Michał Purzyński. (Johanna Amann)
2.3-310 | 2014-11-19 10:56:59 -0600
* Disable verbose bison output. (Jon Siwek)
2.3-309 | 2014-11-18 12:17:53 -0800
* New decompose_uri() function in base/utils/urls that splits a URI
into its pieces. (Anthony Kasza).
2.3-305 | 2014-11-18 11:09:04 -0800
* Improve coercion of &default expressions. Addresses BIT-1288. (Jon
Siwek)
2.3-303 | 2014-11-18 10:53:04 -0800
* For DH key exchanges, use p as the parameter for weak key
exchanges. (Johanna Amann)
2.3-301 | 2014-11-11 13:47:27 -0800
* Add builtin function enum_to_int() that converts an enum into a
integer. (Christian Struck)
2.3-297 | 2014-11-11 11:50:47 -0800
* Removing method from SSL analyzer that's no longer used. (Robin
Sommer)
2.3-296 | 2014-11-11 11:42:38 -0800
* A new analyzer parsing the MySQL wire protocol. Activity gets
logged into mysql.log. Supports protocol versions 9 and 10. (Vlad
Grigorescu)
2.3-280 | 2014-11-05 09:46:33 -0500
* Add Windows detection based on CryptoAPI HTTP traffic as a
software framework policy script. (Vlad Grigorescu)
2.3-278 | 2014-11-03 18:55:18 -0800
* Add new curves from draft-ietf-tls-negotiated-ff-dhe to SSL

8
CMakeLists.txt
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@ -2,7 +2,7 @@ project(Bro C CXX)
# When changing the minimum version here, also adapt
# aux/bro-aux/plugin-support/skeleton/CMakeLists.txt
cmake_minimum_required(VERSION 2.6.3 FATAL_ERROR)
cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
include(cmake/CommonCMakeConfig.cmake)
@ -15,6 +15,11 @@ if (NOT BRO_SCRIPT_INSTALL_PATH)
set(BRO_SCRIPT_INSTALL_PATH ${BRO_ROOT_DIR}/share/bro)
endif ()
if (NOT BRO_MAN_INSTALL_PATH)
# set the default Bro man page installation path (user did not specify one)
set(BRO_MAN_INSTALL_PATH ${BRO_ROOT_DIR}/share/man)
endif ()
# sanitize the Bro script install directory into an absolute path
# (CMake is confused by ~ as a representation of home directory)
get_filename_component(BRO_SCRIPT_INSTALL_PATH ${BRO_SCRIPT_INSTALL_PATH}
@ -175,6 +180,7 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR})
add_subdirectory(src)
add_subdirectory(scripts)
add_subdirectory(doc)
add_subdirectory(man)
include(CheckOptionalBuildSources)

3
Makefile
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@ -48,12 +48,13 @@ bindist:
distclean:
rm -rf $(BUILD)
$(MAKE) -C testing $@
test:
@( cd testing && make )
test-all: test
test -d aux/broctl && ( cd aux/broctl && make test )
test -d aux/broctl && ( cd aux/broctl && make test-all )
test -d aux/btest && ( cd aux/btest && make test )
test -d aux/bro-aux && ( cd aux/bro-aux && make test )
test -d aux/plugins && ( cd aux/plugins && make test-all )

23
NEWS
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@ -25,11 +25,34 @@ New Functionality
See https://www.bro.org/sphinx-git/devel/plugins.html for more
information on writing plugins.
- Bro now has supoprt for the MySQL wire protocol. Activity gets
logged into mysql.log.
- Bro's file analysis now supports reassembly of files that are not
transferred/seen sequentially.
Changed Functionality
---------------------
- bro-cut has been rewritten in C, and is hence much faster.
- File analysis
* Removed ``fa_file`` record's ``mime_type`` and ``mime_types``
fields. The events ``file_mime_type`` and ``file_mime_types``
have been added which contain the same information. The
``mime_type`` field of ``Files::Info`` also still has this info.
* Removed ``Files::add_analyzers_for_mime_type`` function.
* Removed ``offset`` parameter of the ``file_extraction_limit``
event. Since file extraction now internally depends on file
reassembly for non-sequential files, "offset" can be obtained
with other information already available -- adding together
``seen_bytes`` and ``missed_bytes`` fields of the ``fa_file``
record gives the how many bytes have been written so far (i.e.
the "offset").
Bro 2.3
=======

2
VERSION
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@ -1 +1 @@
2.3-278
2.3-376

2
aux/bro-aux

@ -1 +1 @@
Subproject commit 977654dc51ab08a2afde32241f108cdb4a581d8f
Subproject commit 0b713c027d3efaaca50e5df995c02656175573cd

2
aux/broccoli

@ -1 +1 @@
Subproject commit acb8fbe8e7bc6ace5135fb73dca8e29432cdc1ca
Subproject commit d43cc790e5b8709b5e032e52ad0e00936494739b

2
aux/broctl

@ -1 +1 @@
Subproject commit 39e865dec9611b9b53b609cbc8df519cebae0a1e
Subproject commit 8c9b87bc73e1ddaa304e3d89028c1e7b95d37a91

2
aux/btest

@ -1 +1 @@
Subproject commit 1efa4d10f943351efea96def68e598b053fd217a
Subproject commit d67d89aaee32ad5edb9068db55d1310c2f36970a

BIN
doc/ext/bro_lexer/__init__.pyc
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doc/ext/bro_lexer/bro.pyc
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4
doc/frameworks/file_analysis_02.bro
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@ -1,7 +1,7 @@
event file_new(f: fa_file)
event file_mime_type(f: fa_file, mime_type: string)
{
print "new file", f$id;
if ( f?$mime_type && f$mime_type == "text/plain" )
if ( mime_type == "text/plain" )
Files::add_analyzer(f, Files::ANALYZER_MD5);
}

72
doc/frameworks/intel.rst
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@ -14,32 +14,35 @@ consume that data, make it available for matching, and provide
infrastructure around improving performance, memory utilization, and
generally making all of this easier.
Data in the Intelligence Framework is the atomic piece of intelligence
Data in the Intelligence Framework is an atomic piece of intelligence
such as an IP address or an e-mail address along with a suite of
metadata about it such as a freeform source field, a freeform
descriptive field and a URL which might lead to more information about
the specific item. The metadata in the default scripts has been
deliberately kept minimal so that the community can find the
appropriate fields that need added by writing scripts which extend the
appropriate fields that need to be added by writing scripts which extend the
base record using the normal record extension mechanism.
Quick Start
-----------
Load the package of scripts that sends data into the Intelligence
Framework to be checked by loading this script in local.bro::
@load policy/frameworks/intel/seen
Refer to the "Loading Intelligence" section below to see the format
for Intelligence Framework text files, then load those text files with
this line in local.bro::
redef Intel::read_files += { "/somewhere/yourdata.txt" };
The data itself only needs to reside on the manager if running in a
The text files need to reside only on the manager if running in a
cluster.
Add the following line to local.bro in order to load the scripts
that send "seen" data into the Intelligence Framework to be checked against
the loaded intelligence data::
@load policy/frameworks/intel/seen
Intelligence data matches will be logged to the intel.log file.
Architecture
------------
@ -58,8 +61,10 @@ manager is the only node that needs the intelligence data. The
intelligence framework has distribution mechanisms which will push
data out to all of the nodes that need it.
Here is an example of the intelligence data format. Note that all
whitespace field separators are literal tabs and fields containing only a
Here is an example of the intelligence data format (note that there will be
additional fields if you are using CIF intelligence data or if you are
using the policy/frameworks/intel/do_notice script). Note that all fields
must be separated by a single tab character and fields containing only a
hyphen are considered to be null values. ::
#fields indicator indicator_type meta.source meta.desc meta.url
@ -69,8 +74,21 @@ hyphen are considered to be null values. ::
For a list of all built-in `indicator_type` values, please refer to the
documentation of :bro:see:`Intel::Type`.
To load the data once files are created, use the following example
code to define files to load with your own file names of course::
Note that if you are using data from the Collective Intelligence Framework,
then you will need to add the following line to your local.bro in order
to support additional metadata fields used by CIF::
@load policy/integration/collective-intel
There is a simple mechanism to raise a Bro notice (of type Intel::Notice)
for user-specified intelligence matches. To use this feature, add the
following line to local.bro in order to support additional metadata fields
(documented in the :bro:see:`Intel::MetaData` record)::
@load policy/frameworks/intel/do_notice
To load the data once the files are created, use the following example
to specify which files to load (with your own file names of course)::
redef Intel::read_files += {
"/somewhere/feed1.txt",
@ -85,24 +103,23 @@ Seen Data
When some bit of data is extracted (such as an email address in the
"From" header in a message over SMTP), the Intelligence Framework
needs to be informed that this data was discovered and it's presence
should be checked within the intelligence data set. This is
accomplished through the :bro:see:`Intel::seen` function.
needs to be informed that this data was discovered so that its presence
will be checked within the loaded intelligence data. This is
accomplished through the :bro:see:`Intel::seen` function, however
typically users won't need to work with this function due to the
scripts included with Bro that will call this function.
Typically users won't need to work with this function due to built in
hook scripts that Bro ships with that will "see" data and send it into
the intelligence framework. A user may only need to load the entire
package of hook scripts as a module or pick and choose specific
scripts to load. Keep in mind that as more data is sent into the
To load all of the scripts included with Bro for sending "seen" data to
the intelligence framework, just add this line to local.bro::
@load policy/frameworks/intel/seen
Alternatively, specific scripts in that directory can be loaded.
Keep in mind that as more data is sent into the
intelligence framework, the CPU load consumed by Bro will increase
depending on how many times the :bro:see:`Intel::seen` function is
being called which is heavily traffic dependent.
The full package of hook scripts that Bro ships with for sending this
"seen" data into the intelligence framework can be loading by adding
this line to local.bro::
@load policy/frameworks/intel/seen
Intelligence Matches
********************
@ -111,6 +128,7 @@ Against all hopes, most networks will eventually have a hit on
intelligence data which could indicate a possible compromise or other
unwanted activity. The Intelligence Framework provides an event that
is generated whenever a match is discovered named :bro:see:`Intel::match`.
Due to design restrictions placed upon
the intelligence framework, there is no assurance as to where this
event will be generated. It could be generated on the worker where
@ -119,3 +137,7 @@ handled, only the data given as event arguments to the event can be
assured since the host where the data was seen may not be where
``Intel::match`` is handled.
Intelligence matches are logged to the intel.log file. For a description of
each field in that file, see the documentation for the :bro:see:`Intel::Info`
record.

2
doc/frameworks/notice.rst
View file

@ -271,7 +271,7 @@ script that is generating the notice has indicated to the notice framework how
to identify notices that are intrinsically the same. Identification of these
"intrinsically duplicate" notices is implemented with an optional field in
:bro:see:`Notice::Info` records named ``$identifier`` which is a simple string.
If the ``$identifier`` and ``$type`` fields are the same for two notices, the
If the ``$identifier`` and ``$note`` fields are the same for two notices, the
notice framework actually considers them to be the same thing and can use that
information to suppress duplicates for a configurable period of time.

11
doc/httpmonitor/file_extraction.bro
View file

@ -7,18 +7,15 @@ global mime_to_ext: table[string] of string = {
["text/html"] = "html",
};
event file_new(f: fa_file)
event file_mime_type(f: fa_file, mime_type: string)
{
if ( f$source != "HTTP" )
return;
if ( ! f?$mime_type )
if ( mime_type !in mime_to_ext )
return;
if ( f$mime_type !in mime_to_ext )
return;
local fname = fmt("%s-%s.%s", f$source, f$id, mime_to_ext[f$mime_type]);
local fname = fmt("%s-%s.%s", f$source, f$id, mime_to_ext[mime_type]);
print fmt("Extracting file %s", fname);
Files::add_analyzer(f, Files::ANALYZER_EXTRACT, [$extract_filename=fname]);
}
}

2
doc/install/install.rst
View file

@ -35,7 +35,7 @@ before you begin:
To build Bro from source, the following additional dependencies are required:
* CMake 2.6.3 or greater (http://www.cmake.org)
* CMake 2.8 or greater (http://www.cmake.org)
* Make
* C/C++ compiler
* SWIG (http://www.swig.org)

2
doc/logs/index.rst
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@ -113,7 +113,7 @@ default, including:
As you can see, some log files are specific to a particular protocol,
while others aggregate information across different types of activity.
For a complete list of log files and a description of its purpose,
see :doc:`List of Log Files <../script-reference/list-of-log-files>`.
see :doc:`Log Files <../script-reference/log-files>`.
.. _bro-cut:

4
doc/scripting/index.rst
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@ -103,9 +103,9 @@ In the ``file_hash`` event handler, there is an ``if`` statement that is used
to check for the correct type of hash, in this case
a SHA1 hash. It also checks for a mime type we've defined as
being of interest as defined in the constant ``match_file_types``.
The comparison is made against the expression ``f$mime_type``, which uses
The comparison is made against the expression ``f$info$mime_type``, which uses
the ``$`` dereference operator to check the value ``mime_type``
inside the variable ``f``. If the entire expression evaluates to true,
inside the variable ``f$info``. If the entire expression evaluates to true,
then a helper function is called to do the rest of the work. In that
function, a local variable is defined to hold a string comprised of
the SHA1 hash concatenated with ``.malware.hash.cymru.com``; this

5
man/CMakeLists.txt Normal file
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@ -0,0 +1,5 @@
install(DIRECTORY . DESTINATION ${BRO_MAN_INSTALL_PATH}/man8 FILES_MATCHING
PATTERN "*.8"
)

164
man/bro.8 Normal file
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@ -0,0 +1,164 @@
.TH BRO "8" "November 2014" "bro" "System Administration Utilities"
.SH NAME
bro \- passive network traffic analyzer
.SH SYNOPSIS
.B bro
\/\fP [\fIoptions\fR] [\fIfile\fR ...]
.SH DESCRIPTION
Bro is primarily a security monitor that inspects all traffic on a link in
depth for signs of suspicious activity. More generally, however, Bro
supports a wide range of traffic analysis tasks even outside of the
security domain, including performance measurements and helping with
trouble-shooting.
Bro comes with built-in functionality for a range of analysis and detection
tasks, including detecting malware by interfacing to external registries,
reporting vulnerable versions of software seen on the network, identifying
popular web applications, detecting SSH brute-forcing, validating SSL
certificate chains, among others.
.SH OPTIONS
.TP
.B <file>
policy file, or read stdin
.TP
\fB\-a\fR,\ \-\-parse\-only
exit immediately after parsing scripts
.TP
\fB\-b\fR,\ \-\-bare\-mode
don't load scripts from the base/ directory
.TP
\fB\-d\fR,\ \-\-debug\-policy
activate policy file debugging
.TP
\fB\-e\fR,\ \-\-exec <bro code>
augment loaded policies by given code
.TP
\fB\-f\fR,\ \-\-filter <filter>
tcpdump filter
.TP
\fB\-g\fR,\ \-\-dump\-config
dump current config into .state dir
.TP
\fB\-h\fR,\ \-\-help|\-?
command line help
.TP
\fB\-i\fR,\ \-\-iface <interface>
read from given interface
.TP
\fB\-p\fR,\ \-\-prefix <prefix>
add given prefix to policy file resolution
.TP
\fB\-r\fR,\ \-\-readfile <readfile>
read from given tcpdump file
.TP
\fB\-y\fR,\ \-\-flowfile <file>[=<ident>]
read from given flow file
.TP
\fB\-Y\fR,\ \-\-netflow <ip>:<prt>[=<id>]
read flow from socket
.TP
\fB\-s\fR,\ \-\-rulefile <rulefile>
read rules from given file
.TP
\fB\-t\fR,\ \-\-tracefile <tracefile>
activate execution tracing
.TP
\fB\-w\fR,\ \-\-writefile <writefile>
write to given tcpdump file
.TP
\fB\-v\fR,\ \-\-version
print version and exit
.TP
\fB\-x\fR,\ \-\-print\-state <file.bst>
print contents of state file
.TP
\fB\-z\fR,\ \-\-analyze <analysis>
run the specified policy file analysis
.TP
\fB\-C\fR,\ \-\-no\-checksums
ignore checksums
.TP
\fB\-D\fR,\ \-\-dfa\-size <size>
DFA state cache size
.TP
\fB\-F\fR,\ \-\-force\-dns
force DNS
.TP
\fB\-I\fR,\ \-\-print\-id <ID name>
print out given ID
.TP
\fB\-K\fR,\ \-\-md5\-hashkey <hashkey>
set key for MD5\-keyed hashing
.TP
\fB\-L\fR,\ \-\-rule\-benchmark
benchmark for rules
.TP
\fB\-N\fR,\ \-\-print\-plugins
print available plugins and exit (\fB\-NN\fR for verbose)
.TP
\fB\-O\fR,\ \-\-optimize
optimize policy script
.TP
\fB\-P\fR,\ \-\-prime\-dns
prime DNS
.TP
\fB\-Q\fR,\ \-\-time
print execution time summary to stderr
.TP
\fB\-R\fR,\ \-\-replay <events.bst>
replay events
.TP
\fB\-S\fR,\ \-\-debug\-rules
enable rule debugging
.TP
\fB\-T\fR,\ \-\-re\-level <level>
set 'RE_level' for rules
.TP
\fB\-U\fR,\ \-\-status\-file <file>
Record process status in file
.TP
\fB\-W\fR,\ \-\-watchdog
activate watchdog timer
.TP
\fB\-X\fR,\ \-\-broxygen
generate documentation based on config file
.TP
\fB\-\-pseudo\-realtime[=\fR<speedup>]
enable pseudo\-realtime for performance evaluation (default 1)
.TP
\fB\-\-load\-seeds\fR <file>
load seeds from given file
.TP
\fB\-\-save\-seeds\fR <file>
save seeds to given file
.SH ENVIRONMENT
.TP
.B BROPATH
file search path
.TP
.B BRO_PLUGIN_PATH
plugin search path
.TP
.B BRO_PLUGIN_ACTIVATE
plugins to always activate
.TP
.B BRO_PREFIXES
prefix list
.TP
.B BRO_DNS_FAKE
disable DNS lookups
.TP
.B BRO_SEED_FILE
file to load seeds from
.TP
.B BRO_LOG_SUFFIX
ASCII log file extension
.TP
.B BRO_PROFILER_FILE
Output file for script execution statistics
.TP
.B BRO_DISABLE_BROXYGEN
Disable Broxygen documentation support
.SH AUTHOR
.B bro
was written by The Bro Project <info@bro.org>.

95
scripts/base/files/unified2/main.bro
View file

@ -71,11 +71,50 @@ global classification_map: table[count] of string;
global sid_map: table[count] of string;
global gen_map: table[count] of string;
global num_classification_map_reads = 0;
global num_sid_map_reads = 0;
global num_gen_map_reads = 0;
global watching = F;
# For reading in config files.
type OneLine: record {
line: string;
};
function mappings_initialized(): bool
{
return num_classification_map_reads > 0 &&
num_sid_map_reads > 0 &&
num_gen_map_reads > 0;
}
function start_watching()
{
if ( watching )
return;
watching = T;
if ( watch_dir != "" )
{
Dir::monitor(watch_dir, function(fname: string)
{
Input::add_analysis([$source=fname,
$reader=Input::READER_BINARY,
$mode=Input::STREAM,
$name=fname]);
}, 10secs);
}
if ( watch_file != "" )
{
Input::add_analysis([$source=watch_file,
$reader=Input::READER_BINARY,
$mode=Input::STREAM,
$name=watch_file]);
}
}
function create_info(ev: IDSEvent): Info
{
local info = Info($ts=ev$ts,
@ -136,11 +175,33 @@ event Unified2::read_classification_line(desc: Input::EventDescription, tpe: Inp
}
}
event Input::end_of_data(name: string, source: string)
{
if ( name == classification_config )
++num_classification_map_reads;
else if ( name == sid_msg )
++num_sid_map_reads;
else if ( name == gen_msg )
++num_gen_map_reads;
else
return;
if ( watching )
return;
if ( mappings_initialized() )
start_watching();
}
event bro_init() &priority=5
{
Log::create_stream(Unified2::LOG, [$columns=Info, $ev=log_unified2]);
if ( sid_msg != "" )
if ( sid_msg == "" )
{
num_sid_map_reads = 1;
}
else
{
Input::add_event([$source=sid_msg,
$reader=Input::READER_RAW,
@ -151,7 +212,11 @@ event bro_init() &priority=5
$ev=Unified2::read_sid_msg_line]);
}
if ( gen_msg != "" )
if ( gen_msg == "" )
{
num_gen_map_reads = 1;
}
else
{
Input::add_event([$source=gen_msg,
$name=gen_msg,
@ -162,7 +227,11 @@ event bro_init() &priority=5
$ev=Unified2::read_gen_msg_line]);
}
if ( classification_config != "" )
if ( classification_config == "" )
{
num_classification_map_reads = 1;
}
else
{
Input::add_event([$source=classification_config,
$name=classification_config,
@ -173,24 +242,8 @@ event bro_init() &priority=5
$ev=Unified2::read_classification_line]);
}
if ( watch_dir != "" )
{
Dir::monitor(watch_dir, function(fname: string)
{
Input::add_analysis([$source=fname,
$reader=Input::READER_BINARY,
$mode=Input::STREAM,
$name=fname]);
}, 10secs);
}
if ( watch_file != "" )
{
Input::add_analysis([$source=watch_file,
$reader=Input::READER_BINARY,
$mode=Input::STREAM,
$name=watch_file]);
}
if ( mappings_initialized() )
start_watching();
}
event file_new(f: fa_file)

1
scripts/base/frameworks/files/magic/__load__.bro
View file

@ -1,2 +1,3 @@
@load-sigs ./general
@load-sigs ./msoffice
@load-sigs ./libmagic

131
scripts/base/frameworks/files/magic/general.sig
View file

@ -1,16 +1,137 @@
# General purpose file magic signatures.
signature file-plaintext {
file-magic /([[:print:][:space:]]{10})/
file-magic /^([[:print:][:space:]]{10})/
file-mime "text/plain", -20
}
signature file-tar {
file-magic /([[:print:]\x00]){100}(([[:digit:]\x00\x20]){8}){3}/
file-mime "application/x-tar", 150
file-magic /^[[:print:]\x00]{100}([[:digit:]\x20]{7}\x00){3}([[:digit:]\x20]{11}\x00){2}([[:digit:]\x00\x20]{7}[\x20\x00])[0-7\x00]/
file-mime "application/x-tar", 100
}
signature file-zip {
file-mime "application/zip", 10
file-magic /^PK\x03\x04.{2}/
}
signature file-jar {
file-mime "application/java-archive", 100
file-magic /^PK\x03\x04.{1,200}\x14\x00..META-INF\/MANIFEST\.MF/
}
signature file-java-applet {
file-magic /^\xca\xfe\xba\xbe...[\x2e-\x34]/
file-mime "application/x-java-applet", 71
}
# Shockwave flash
signature file-swf {
file-magic /(F|C|Z)WS/
file-magic /^(F|C|Z)WS/
file-mime "application/x-shockwave-flash", 60
}
}
# Microsoft Outlook's Transport Neutral Encapsulation Format
signature file-tnef {
file-magic /^\x78\x9f\x3e\x22/
file-mime "application/vnd.ms-tnef", 100
}
# Mac OS X DMG files
signature file-dmg {
file-magic /^(\x78\x01\x73\x0D\x62\x62\x60|\x78\xDA\x63\x60\x18\x05|\x78\x01\x63\x60\x18\x05|\x78\xDA\x73\x0D|\x78[\x01\xDA]\xED[\xD0-\xD9])/
file-mime "application/x-dmg", 100
}
# Mac OS X Mach-O executable
signature file-mach-o {
file-magic /^[\xce\xcf]\xfa\xed\xfe/
file-mime "application/x-mach-o-executable", 100
}
# Mac OS X Universal Mach-O executable
signature file-mach-o-universal {
file-magic /^\xca\xfe\xba\xbe..\x00[\x01-\x14]/
file-mime "application/x-mach-o-executable", 100
}
# XAR (eXtensible ARchive) format.
# Mac OS X uses this for the .pkg format.
signature file-xar {
file-magic /^xar\!/
file-mime "application/x-xar", 100
}
signature file-pkcs7 {
file-magic /^MIME-Version:.*protocol=\"application\/pkcs7-signature\"/
file-mime "application/pkcs7-signature", 100
}
# Concatenated X.509 certificates in textual format.
signature file-pem {
file-magic /^-----BEGIN CERTIFICATE-----/
file-mime "application/x-pem"
}
# Java Web Start file.
signature file-jnlp {
file-magic /^\<jnlp\x20/
file-mime "application/x-java-jnlp-file", 100
}
signature file-ico {
file-magic /^\x00\x00\x01\x00/
file-mime "image/x-icon", 70
}
signature file-cur {
file-magic /^\x00\x00\x02\x00/
file-mime "image/x-cursor", 70
}
signature file-pcap {
file-magic /^(\xa1\xb2\xc3\xd4|\xd4\xc3\xb2\xa1)/
file-mime "application/vnd.tcpdump.pcap", 70
}
signature file-pcap-ng {
file-magic /^\x0a\x0d\x0d\x0a.{4}(\x1a\x2b\x3c\x4d|\x4d\x3c\x2b\x1a)/
file-mime "application/vnd.tcpdump.pcap", 100
}
signature file-shellscript {
file-mime "text/x-shellscript", 250
file-magic /^\x23\x21[^\n]{1,15}bin\/(env[[:space:]]+)?(ba|tc|c|z|fa|ae|k)?sh/
}
signature file-perl {
file-magic /^\x23\x21[^\n]{1,15}bin\/(env[[:space:]]+)?perl/
file-mime "text/x-perl", 60
}
signature file-ruby {
file-magic /^\x23\x21[^\n]{1,15}bin\/(env[[:space:]]+)?ruby/
file-mime "text/x-ruby", 60
}
signature file-python {
file-magic /^\x23\x21[^\n]{1,15}bin\/(env[[:space:]]+)?python/
file-mime "text/x-python", 60
}
signature file-php {
file-magic /^.*<\?php/
file-mime "text/x-php", 40
}
# Stereolithography ASCII format
signature file-stl-ascii {
file-magic /^solid\x20/
file-mime "application/sla", 10
}
# Sketchup model file
signature file-skp {
file-magic /^\xFF\xFE\xFF\x0E\x53\x00\x6B\x00\x65\x00\x74\x00\x63\x00\x68\x00\x55\x00\x70\x00\x20\x00\x4D\x00\x6F\x00\x64\x00\x65\x00\x6C\x00/
file-mime "application/skp", 100
}

535
scripts/base/frameworks/files/magic/libmagic.sig
View file

@ -7,42 +7,18 @@
# The instrumented version of the `file` command used to generate these
# is located at: https://github.com/jsiwek/file/tree/bro-signatures.
# >2080 string,=Foglio di lavoro Microsoft Exce (len=31), ["%s"], swap_endian=0
signature file-magic-auto0 {
file-mime "application/vnd.ms-excel", 340
file-magic /(.{2080})(Foglio di lavoro Microsoft Exce)/
}
# >2 string,=---BEGIN PGP PUBLIC KEY BLOCK- (len=30), ["PGP public key block"], swap_endian=0
signature file-magic-auto1 {
file-mime "application/pgp-keys", 330
file-magic /(.{2})(\x2d\x2d\x2dBEGIN PGP PUBLIC KEY BLOCK\x2d)/
}
# >2080 string,=Microsoft Excel 5.0 Worksheet (len=29), ["%s"], swap_endian=0
signature file-magic-auto2 {
file-mime "application/vnd.ms-excel", 320
file-magic /(.{2080})(Microsoft Excel 5\x2e0 Worksheet)/
}
# >11 string,=must be converted with BinHex (len=29), ["BinHex binary text"], swap_endian=0
signature file-magic-auto3 {
file-mime "application/mac-binhex40", 320
file-magic /(.{11})(must be converted with BinHex)/
}
# >2080 string,=Microsoft Word 6.0 Document (len=27), ["%s"], swap_endian=0
signature file-magic-auto4 {
file-mime "application/msword", 300
file-magic /(.{2080})(Microsoft Word 6\x2e0 Document)/
}
# >2080 string,=Documento Microsoft Word 6 (len=26), ["Spanish Microsoft Word 6 document data"], swap_endian=0
signature file-magic-auto5 {
file-mime "application/msword", 290
file-magic /(.{2080})(Documento Microsoft Word 6)/
}
# >0 string,=-----BEGIN PGP SIGNATURE- (len=25), ["PGP signature"], swap_endian=0
signature file-magic-auto6 {
file-mime "application/pgp-signature", 280
@ -92,36 +68,6 @@ signature file-magic-auto13 {
file-magic /(\x23\x21 ?\x2fusr\x2flocal\x2fbin\x2fgawk)/
}
# >0 string/wt,=#! /usr/local/bin/bash (len=22), ["Bourne-Again shell script text executable"], swap_endian=0
signature file-magic-auto14 {
file-mime "text/x-shellscript", 250
file-magic /(\x23\x21 ?\x2fusr\x2flocal\x2fbin\x2fbash)/
}
# >0 string/wt,=#! /usr/local/bin/tcsh (len=22), ["Tenex C shell script text executable"], swap_endian=0
signature file-magic-auto15 {
file-mime "text/x-shellscript", 250
file-magic /(\x23\x21 ?\x2fusr\x2flocal\x2fbin\x2ftcsh)/
}
# >0 string/wt,=#! /usr/local/bin/zsh (len=21), ["Paul Falstad's zsh script text executable"], swap_endian=0
signature file-magic-auto16 {
file-mime "text/x-shellscript", 240
file-magic /(\x23\x21 ?\x2fusr\x2flocal\x2fbin\x2fzsh)/
}
# >0 string/wt,=#! /usr/local/bin/ash (len=21), ["Neil Brown's ash script text executable"], swap_endian=0
signature file-magic-auto17 {
file-mime "text/x-shellscript", 240
file-magic /(\x23\x21 ?\x2fusr\x2flocal\x2fbin\x2fash)/
}
# >0 string/wt,=#! /usr/local/bin/ae (len=20), ["Neil Brown's ae script text executable"], swap_endian=0
signature file-magic-auto18 {
file-mime "text/x-shellscript", 230
file-magic /(\x23\x21 ?\x2fusr\x2flocal\x2fbin\x2fae)/
}
# >0 string,=# PaCkAgE DaTaStReAm (len=20), ["pkg Datastream (SVR4)"], swap_endian=0
signature file-magic-auto19 {
file-mime "application/x-svr4-package", 230
@ -140,30 +86,12 @@ signature file-magic-auto21 {
file-magic /(\x5bKDE Desktop Entry\x5d)/
}
# >512 string,=R\000o\000o\000t\000 \000E\000n\000t\000r\000y (len=19), ["Microsoft Word Document"], swap_endian=0
signature file-magic-auto22 {
file-mime "application/msword", 220
file-magic /(.{512})(R\x00o\x00o\x00t\x00 \x00E\x00n\x00t\x00r\x00y)/
}
# >0 string,=!<arch>\n__________E (len=19), ["MIPS archive"], swap_endian=0
signature file-magic-auto23 {
file-mime "application/x-archive", 220
file-magic /(\x21\x3carch\x3e\x0a\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5fE)/
}
# >0 string/wt,=#! /usr/local/tcsh (len=18), ["Tenex C shell script text executable"], swap_endian=0
signature file-magic-auto24 {
file-mime "text/x-shellscript", 210
file-magic /(\x23\x21 ?\x2fusr\x2flocal\x2ftcsh)/
}
# >0 string/wt,=#! /usr/local/bash (len=18), ["Bourne-Again shell script text executable"], swap_endian=0
signature file-magic-auto25 {
file-mime "text/x-shellscript", 210
file-magic /(\x23\x21 ?\x2fusr\x2flocal\x2fbash)/
}
# >0 string/t,=# KDE Config File (len=17), ["KDE config file"], swap_endian=0
signature file-magic-auto26 {
file-mime "application/x-kdelnk", 200
@ -189,12 +117,6 @@ signature file-magic-auto29 {
file-magic /(\x23\x21 ?\x2fusr\x2fbin\x2fnawk)/
}
# >0 string/wt,=#! /usr/bin/tcsh (len=16), ["Tenex C shell script text executable"], swap_endian=0
signature file-magic-auto30 {
file-mime "text/x-shellscript", 190
file-magic /(\x23\x21 ?\x2fusr\x2fbin\x2ftcsh)/
}
# >0 string/wt,=#! /usr/bin/gawk (len=16), ["GNU awk script text executable"], swap_endian=0
signature file-magic-auto31 {
file-mime "text/x-gawk", 190
@ -207,12 +129,6 @@ signature file-magic-auto32 {
file-magic /(.{369})(MICROSOFT PIFEX\x00)/
}
# >0 string/wt,=#! /usr/bin/bash (len=16), ["Bourne-Again shell script text executable"], swap_endian=0
signature file-magic-auto33 {
file-mime "text/x-shellscript", 190
file-magic /(\x23\x21 ?\x2fusr\x2fbin\x2fbash)/
}
# >0 string/w,=#VRML V1.0 ascii (len=16), ["VRML 1 file"], swap_endian=0
signature file-magic-auto34 {
file-mime "model/vrml", 190
@ -334,12 +250,6 @@ signature file-magic-auto51 {
file-magic /(\x23\x21 ?\x2fusr\x2fbin\x2fawk)/
}
# >0 string/wt,=#! /usr/bin/zsh (len=15), ["Paul Falstad's zsh script text executable"], swap_endian=0
signature file-magic-auto52 {
file-mime "text/x-shellscript", 180
file-magic /(\x23\x21 ?\x2fusr\x2fbin\x2fzsh)/
}
# >0 string,=MAS_UTrack_V00 (len=14), [""], swap_endian=0
# >>14 string,>/0 (len=2), ["ultratracker V1.%.1s module sound data"], swap_endian=0
signature file-magic-auto53 {
@ -457,12 +367,6 @@ signature file-magic-auto70 {
file-magic /(\x3cmap ?version)/
}
# >0 string/wt,=#! /bin/tcsh (len=12), ["Tenex C shell script text executable"], swap_endian=0
signature file-magic-auto71 {
file-mime "text/x-shellscript", 150
file-magic /(\x23\x21 ?\x2fbin\x2ftcsh)/
}
# >0 string/wt,=#! /bin/nawk (len=12), ["new awk script text executable"], swap_endian=0
signature file-magic-auto72 {
file-mime "text/x-nawk", 150
@ -475,12 +379,6 @@ signature file-magic-auto73 {
file-magic /(\x23\x21 ?\x2fbin\x2fgawk)/
}
# >0 string/wt,=#! /bin/bash (len=12), ["Bourne-Again shell script text executable"], swap_endian=0
signature file-magic-auto74 {
file-mime "text/x-shellscript", 150
file-magic /(\x23\x21 ?\x2fbin\x2fbash)/
}
# >0 string/wt,=#! /bin/awk (len=11), ["awk script text executable"], swap_endian=0
signature file-magic-auto75 {
file-mime "text/x-awk", 140
@ -505,24 +403,6 @@ signature file-magic-auto78 {
file-magic /(d8\x3aannounce)/
}
# >0 string/wt,=#! /bin/csh (len=11), ["C shell script text executable"], swap_endian=0
signature file-magic-auto79 {
file-mime "text/x-shellscript", 140
file-magic /(\x23\x21 ?\x2fbin\x2fcsh)/
}
# >0 string/wt,=#! /bin/ksh (len=11), ["Korn shell script text executable"], swap_endian=0
signature file-magic-auto80 {
file-mime "text/x-shellscript", 140
file-magic /(\x23\x21 ?\x2fbin\x2fksh)/
}
# >0 string/wt,=#! /bin/zsh (len=11), ["Paul Falstad's zsh script text executable"], swap_endian=0
signature file-magic-auto81 {
file-mime "text/x-shellscript", 140
file-magic /(\x23\x21 ?\x2fbin\x2fzsh)/
}
# >0 string/c,=BEGIN:VCARD (len=11), ["vCard visiting card"], swap_endian=0
signature file-magic-auto82 {
file-mime "text/x-vcard", 140
@ -545,12 +425,6 @@ signature file-magic-auto84 {
file-magic /(Forward to)/
}
# >0 string/wt,=#! /bin/sh (len=10), ["POSIX shell script text executable"], swap_endian=0
signature file-magic-auto85 {
file-mime "text/x-shellscript", 130
file-magic /(\x23\x21 ?\x2fbin\x2fsh)/
}
# >0 string,=II*\000\020\000\000\000CR (len=10), ["Canon CR2 raw image data"], swap_endian=0
signature file-magic-auto86 {
file-mime "image/x-canon-cr2", 130
@ -585,12 +459,6 @@ signature file-magic-auto90 {
file-magic /(\x3cBookFile)/
}
# >2112 string,=MSWordDoc (len=9), ["Microsoft Word document data"], swap_endian=0
signature file-magic-auto91 {
file-mime "application/msword", 120
file-magic /(.{2112})(MSWordDoc)/
}
# >0 string/t,=N#! rnews (len=9), ["mailed, batched news text"], swap_endian=0
signature file-magic-auto92 {
file-mime "message/rfc822", 120
@ -656,12 +524,6 @@ signature file-magic-auto100 {
file-magic /(MSCF\x00\x00\x00\x00)/
}
# >0 string/b,=\320\317\021\340\241\261\032\341 (len=8), ["Microsoft Office Document"], swap_endian=0
signature file-magic-auto101 {
file-mime "application/msword", 110
file-magic /(\xd0\xcf\x11\xe0\xa1\xb1\x1a\xe1)/
}
# >21 string/c,=!SCREAM! (len=8), ["Screamtracker 2 module sound data"], swap_endian=0
signature file-magic-auto102 {
file-mime "audio/x-mod", 110
@ -754,10 +616,10 @@ signature file-magic-auto116 {
}
# >257 string,=ustar \000 (len=8), ["GNU tar archive"], swap_endian=0
signature file-magic-auto117 {
file-mime "application/x-tar", 110
file-magic /(.{257})(ustar \x00)/
}
#signature file-magic-auto117 {
# file-mime "application/x-tar", 110
# file-magic /(.{257})(ustar \x00)/
#}
# >0 string,=<MIFFile (len=8), ["FrameMaker MIF (ASCII) file"], swap_endian=0
signature file-magic-auto118 {
@ -771,12 +633,6 @@ signature file-magic-auto119 {
file-magic /(PK\x07\x08PK\x03\x04)/
}
# >0 string/b,=\t\004\006\000\000\000\020\000 (len=8), ["Microsoft Excel Worksheet"], swap_endian=0
signature file-magic-auto120 {
file-mime "application/vnd.ms-excel", 110
file-magic /(\x09\x04\x06\x00\x00\x00\x10\x00)/
}
# >0 string/b,=WordPro\000 (len=8), ["Lotus WordPro"], swap_endian=0
signature file-magic-auto121 {
file-mime "application/vnd.lotus-wordpro", 110
@ -844,10 +700,10 @@ signature file-magic-auto130 {
}
# >257 string,=ustar\000 (len=6), ["POSIX tar archive"], swap_endian=0
signature file-magic-auto131 {
file-mime "application/x-tar", 90
file-magic /(.{257})(ustar\x00)/
}
#signature file-magic-auto131 {
# file-mime "application/x-tar", 90
# file-magic /(.{257})(ustar\x00)/
#}
# >0 string,=AC1.40 (len=6), ["DWG AutoDesk AutoCAD Release 1.40"], swap_endian=0
signature file-magic-auto132 {
@ -994,12 +850,6 @@ signature file-magic-auto155 {
file-magic /(\x23 xmcd)/
}
# >0 string/b,=\333\245-\000\000\000 (len=6), ["Microsoft Office Document"], swap_endian=0
signature file-magic-auto156 {
file-mime "application/msword", 90
file-magic /(\xdb\xa5\x2d\x00\x00\x00)/
}
# >2 string,=MMXPR3 (len=6), ["Motorola Quark Express Document (English)"], swap_endian=0
signature file-magic-auto157 {
file-mime "application/x-quark-xpress-3", 90
@ -1046,36 +896,6 @@ signature file-magic-auto162 {
file-magic /(\x3c\x3fxml)(.{15})(.*)( xmlns\x3d)(['"]http:\x2f\x2fwww.opengis.net\x2fkml)/
}
# >0 string,=PK\003\004 (len=4), [""], swap_endian=0
# >>30 regex,=[Content_Types].xml|_rels/.rels (len=31), [""], swap_endian=0
# >>>18 (lelong,+49), search/2000,=PK\003\004 (len=4), [""], swap_endian=0
# >>>>&26 search/1000,=PK\003\004 (len=4), [""], swap_endian=0
# >>>>>&26 string,=word/ (len=5), ["Microsoft Word 2007+"], swap_endian=0
signature file-magic-auto163 {
file-mime "application/vnd.openxmlformats-officedocument.wordprocessingml.document", 80
file-magic /(PK\x03\x04)(.{26})(\[Content_Types\].xml|_rels\x2f.rels)(.*)(PK\x03\x04)(.{26})(.*)(PK\x03\x04)(.{26})(word\x2f)/
}
# >0 string,=PK\003\004 (len=4), [""], swap_endian=0
# >>30 regex,=[Content_Types].xml|_rels/.rels (len=31), [""], swap_endian=0
# >>>18 (lelong,+49), search/2000,=PK\003\004 (len=4), [""], swap_endian=0
# >>>>&26 search/1000,=PK\003\004 (len=4), [""], swap_endian=0
# >>>>>&26 string,=ppt/ (len=4), ["Microsoft PowerPoint 2007+"], swap_endian=0
signature file-magic-auto164 {
file-mime "application/vnd.openxmlformats-officedocument.presentationml.presentation", 70
file-magic /(PK\x03\x04)(.{26})(\[Content_Types\].xml|_rels\x2f.rels)(.*)(PK\x03\x04)(.{26})(.*)(PK\x03\x04)(.{26})(ppt\x2f)/
}
# >0 string,=PK\003\004 (len=4), [""], swap_endian=0
# >>30 regex,=[Content_Types].xml|_rels/.rels (len=31), [""], swap_endian=0
# >>>18 (lelong,+49), search/2000,=PK\003\004 (len=4), [""], swap_endian=0
# >>>>&26 search/1000,=PK\003\004 (len=4), [""], swap_endian=0
# >>>>>&26 string,=xl/ (len=3), ["Microsoft Excel 2007+"], swap_endian=0
signature file-magic-auto165 {
file-mime "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", 60
file-magic /(PK\x03\x04)(.{26})(\[Content_Types\].xml|_rels\x2f.rels)(.*)(PK\x03\x04)(.{26})(.*)(PK\x03\x04)(.{26})(xl\x2f)/
}
# >60 string,=RINEX (len=5), [""], swap_endian=0
# >>80 search/256,=XXRINEXB (len=8), ["RINEX Data, GEO SBAS Broadcast"], swap_endian=0
# >>>5 string,x, [", version %6.6s"], swap_endian=0
@ -1229,30 +1049,12 @@ signature file-magic-auto187 {
file-magic /(\x00\x01\x00\x00\x00)/
}
# >0 string/b,=PO^Q` (len=5), ["Microsoft Word 6.0 Document"], swap_endian=0
signature file-magic-auto188 {
file-mime "application/msword", 80
file-magic /(PO\x5eQ\x60)/
}
# >0 string,=%PDF- (len=5), ["PDF document"], swap_endian=0
signature file-magic-auto189 {
file-mime "application/pdf", 80
file-magic /(\x25PDF\x2d)/
}
# >2114 string,=Biff5 (len=5), ["Microsoft Excel 5.0 Worksheet"], swap_endian=0
signature file-magic-auto190 {
file-mime "application/vnd.ms-excel", 80
file-magic /(.{2114})(Biff5)/
}
# >2121 string,=Biff5 (len=5), ["Microsoft Excel 5.0 Worksheet"], swap_endian=0
signature file-magic-auto191 {
file-mime "application/vnd.ms-excel", 80
file-magic /(.{2121})(Biff5)/
}
# >0 string/t,=Path: (len=5), ["news text"], swap_endian=0
signature file-magic-auto192 {
file-mime "message/news", 80
@ -1383,12 +1185,6 @@ signature file-magic-auto211 {
file-magic /(\x00\x00\x00\x01)([\x07\x27\x47\x67\x87\xa7\xc7\xe7])/
}
# >0 belong&,=-889275714 (0xcafebabe), [""], swap_endian=0
signature file-magic-auto212 {
file-mime "application/x-java-applet", 71
file-magic /(\xca\xfe\xba\xbe)/
}
# >0 belong&ffffffffffffff00,=256 (0x00000100), [""], swap_endian=0
# >>3 byte&,=0xba, ["MPEG sequence"], swap_endian=0
signature file-magic-auto213 {
@ -1706,46 +1502,6 @@ signature file-magic-auto245 {
file-magic /(PK\x03\x04)(.{22})(\x08\x00\x00\x00mimetypeapplication\x2f)(epub\x2bzip)/
}
# Seems redundant with other zip signature below.
# >0 string,=PK\003\004 (len=4), [""], swap_endian=0
# >>26 string,=\b\000\000\000mimetypeapplication/ (len=24), [""], swap_endian=0
# >>>50 string,!epub+zip (len=8), [""], swap_endian=0
# >>>>50 string,!vnd.oasis.opendocument. (len=23), [""], swap_endian=0
# >>>>>50 string,!vnd.sun.xml. (len=12), [""], swap_endian=0
# >>>>>>50 string,!vnd.kde. (len=8), [""], swap_endian=0
# >>>>>>>38 regex,=[!-OQ-~]+ (len=9), ["Zip data (MIME type "%s"?)"], swap_endian=0
#signature file-magic-auto246 {
# file-mime "application/zip", 39
# file-magic /(PK\x03\x04)(.{22})(\x08\x00\x00\x00mimetypeapplication\x2f)/
#}
# >0 string,=PK\003\004 (len=4), [""], swap_endian=0
# >>26 string,=\b\000\000\000mimetype (len=12), [""], swap_endian=0
# >>>38 string,!application/ (len=12), [""], swap_endian=0
# >>>>38 regex,=[!-OQ-~]+ (len=9), ["Zip data (MIME type "%s"?)"], swap_endian=0
signature file-magic-auto247 {
file-mime "application/zip", 39
file-magic /(PK\x03\x04)(.{22})(\x08\x00\x00\x00mimetype)/
}
# The indirect offset makes this difficult to convert.
# The (.*) may be too generous.
# >0 string,=PK\003\004 (len=4), [""], swap_endian=0
# >>26 (leshort,+30), leshort&,=-13570 (0xcafe), ["Java archive data (JAR)"], swap_endian=0
signature file-magic-auto248 {
file-mime "application/java-archive", 50
file-magic /(PK\x03\x04)(.*)(\xfe\xca)/
}
# The indeirect offset and string inequality make this difficult to convert.
# >0 string,=PK\003\004 (len=4), [""], swap_endian=0
# >>26 (leshort,+30), leshort&,!-13570 (0xcafe), [""], swap_endian=0
# >>>26 string,!\b\000\000\000mimetype (len=12), ["Zip archive data"], swap_endian=0
signature file-magic-auto249 {
file-mime "application/zip", 10
file-magic /(PK\x03\x04)(.{2})/
}
# >0 belong&,=442 (0x000001ba), [""], swap_endian=0
# >>4 byte&,&0x40, [""], swap_endian=0
signature file-magic-auto250 {
@ -2065,18 +1821,6 @@ signature file-magic-auto299 {
file-magic /(PDN3)/
}
# >0 ulelong&,=2712847316 (0xa1b2c3d4), ["tcpdump capture file (little-endian)"], swap_endian=0
signature file-magic-auto300 {
file-mime "application/vnd.tcpdump.pcap", 70
file-magic /(\xd4\xc3\xb2\xa1)/
}
# >0 ubelong&,=2712847316 (0xa1b2c3d4), ["tcpdump capture file (big-endian)"], swap_endian=0
signature file-magic-auto301 {
file-mime "application/vnd.tcpdump.pcap", 70
file-magic /(\xa1\xb2\xc3\xd4)/
}
# >0 belong&,=-17957139 (0xfeedfeed), ["Java KeyStore"], swap_endian=0
signature file-magic-auto302 {
file-mime "application/x-java-keystore", 70
@ -2297,12 +2041,6 @@ signature file-magic-auto335 {
file-magic /(SIT\x21)/
}
# >0 lelong&,=574529400 (0x223e9f78), ["Transport Neutral Encapsulation Format"], swap_endian=0
signature file-magic-auto336 {
file-mime "application/vnd.ms-tnef", 70
file-magic /(\x78\x9f\x3e\x22)/
}
# >0 string,=<ar> (len=4), ["System V Release 1 ar archive"], swap_endian=0
signature file-magic-auto337 {
file-mime "application/x-archive", 70
@ -2433,48 +2171,6 @@ signature file-magic-auto357 {
file-magic /(RIFF)(.{4})(AVI )/
}
# >0 belong&,=834535424 (0x31be0000), ["Microsoft Word Document"], swap_endian=0
signature file-magic-auto358 {
file-mime "application/msword", 70
file-magic /(\x31\xbe\x00\x00)/
}
# >0 string/b,=\3767\000# (len=4), ["Microsoft Office Document"], swap_endian=0
signature file-magic-auto359 {
file-mime "application/msword", 70
file-magic /(\xfe7\x00\x23)/
}
# >0 string/b,=\333\245-\000 (len=4), ["Microsoft WinWord 2.0 Document"], swap_endian=0
signature file-magic-auto360 {
file-mime "application/msword", 70
file-magic /(\xdb\xa5\x2d\x00)/
}
# >0 string/b,=\333\245-\000 (len=4), ["Microsoft WinWord 2.0 Document"], swap_endian=0
signature file-magic-auto361 {
file-mime "application/msword", 70
file-magic /(\xdb\xa5\x2d\x00)/
}
# >0 belong&,=6656 (0x00001a00), ["Lotus 1-2-3"], swap_endian=0
signature file-magic-auto362 {
file-mime "application/x-123", 70
file-magic /(\x00\x00\x1a\x00)/
}
# >0 belong&,=512 (0x00000200), ["Lotus 1-2-3"], swap_endian=0
signature file-magic-auto363 {
file-mime "application/x-123", 70
file-magic /(\x00\x00\x02\x00)/
}
# >0 string/b,=\000\000\001\000 (len=4), ["MS Windows icon resource"], swap_endian=0
signature file-magic-auto364 {
file-mime "image/x-icon", 70
file-magic /(\x00\x00\x01\x00)/
}
# >0 lelong&,=268435536 (0x10000050), ["Psion Series 5"], swap_endian=0
# >>4 lelong&,=268435565 (0x1000006d), ["database"], swap_endian=0
# >>>8 lelong&,=268435588 (0x10000084), ["Agenda file"], swap_endian=0
@ -2737,12 +2433,6 @@ signature file-magic-auto403 {
file-magic /(SBI)/
}
# >0 string/b,=\224\246. (len=3), ["Microsoft Word Document"], swap_endian=0
signature file-magic-auto404 {
file-mime "application/msword", 60
file-magic /(\x94\xa6\x2e)/
}
# >0 string,=\004%! (len=3), ["PostScript document text"], swap_endian=0
signature file-magic-auto405 {
file-mime "application/postscript", 60
@ -2763,17 +2453,11 @@ signature file-magic-auto407 {
file-magic /(.*)([ \x09]*(class|module)[ \x09][A-Z])((modul|includ)e [A-Z]|def [a-z])(^[ \x09]*end([ \x09]*[;#].*)?$)/
}
# >512 string/b,=\354\245\301 (len=3), ["Microsoft Word Document"], swap_endian=0
signature file-magic-auto408 {
file-mime "application/msword", 60
file-magic /(.{512})(\xec\xa5\xc1)/
}
# >0 regex/20,=^\.[A-Za-z0-9][A-Za-z0-9][ \t] (len=29), ["troff or preprocessor input text"], swap_endian=0
signature file-magic-auto411 {
file-mime "text/troff", 59
file-magic /(^\.[A-Za-z0-9][A-Za-z0-9][ \x09])/
}
#signature file-magic-auto411 {
# file-mime "text/troff", 59
# file-magic /(^\.[A-Za-z0-9][A-Za-z0-9][ \x09])/
#}
# >0 search/4096,=\documentclass (len=14), ["LaTeX 2e document text"], swap_endian=0
signature file-magic-auto412 {
@ -2806,10 +2490,10 @@ signature file-magic-auto416 {
}
# >0 regex/20,=^\.[A-Za-z0-9][A-Za-z0-9]$ (len=26), ["troff or preprocessor input text"], swap_endian=0
signature file-magic-auto417 {
file-mime "text/troff", 56
file-magic /(^\.[A-Za-z0-9][A-Za-z0-9]$)/
}
#signature file-magic-auto417 {
# file-mime "text/troff", 56
# file-magic /(^\.[A-Za-z0-9][A-Za-z0-9]$)/
#}
# >0 search/w/1,=#! /usr/bin/php (len=15), ["PHP script text executable"], swap_endian=0
signature file-magic-auto418 {
@ -2829,30 +2513,12 @@ signature file-magic-auto420 {
file-magic /(.*)(eval \x22exec \x2fusr\x2fbin\x2fperl)/
}
# >0 search/w/1,=#! /usr/local/bin/python (len=24), ["Python script text executable"], swap_endian=0
signature file-magic-auto421 {
file-mime "text/x-python", 54
file-magic /(.*)(\x23\x21 ?\x2fusr\x2flocal\x2fbin\x2fpython)/
}
# >0 search/1,=Common subdirectories: (len=23), ["diff output text"], swap_endian=0
signature file-magic-auto422 {
file-mime "text/x-diff", 53
file-magic /(.*)(Common subdirectories\x3a )/
}
# >0 search/1,=#! /usr/bin/env python (len=22), ["Python script text executable"], swap_endian=0
signature file-magic-auto423 {
file-mime "text/x-python", 52
file-magic /(.*)(\x23\x21 \x2fusr\x2fbin\x2fenv python)/
}
# >0 search/w/1,=#! /usr/local/bin/ruby (len=22), ["Ruby script text executable"], swap_endian=0
signature file-magic-auto424 {
file-mime "text/x-ruby", 52
file-magic /(.*)(\x23\x21 ?\x2fusr\x2flocal\x2fbin\x2fruby)/
}
# >0 search/w/1,=#! /usr/local/bin/wish (len=22), ["Tcl/Tk script text executable"], swap_endian=0
signature file-magic-auto425 {
file-mime "text/x-tcl", 52
@ -2871,12 +2537,6 @@ signature file-magic-auto427 {
file-magic /(\xff\xd8)/
}
# >0 search/1,=#!/usr/bin/env python (len=21), ["Python script text executable"], swap_endian=0
signature file-magic-auto428 {
file-mime "text/x-python", 51
file-magic /(.*)(\x23\x21\x2fusr\x2fbin\x2fenv python)/
}
# >0 search/1,=#!/usr/bin/env nodejs (len=21), ["Node.js script text executable"], swap_endian=0
signature file-magic-auto429 {
file-mime "application/javascript", 51
@ -3189,12 +2849,6 @@ signature file-magic-auto474 {
file-magic /(\x25\x21)/
}
# >0 search/1,=#! /usr/bin/env ruby (len=20), ["Ruby script text executable"], swap_endian=0
signature file-magic-auto475 {
file-mime "text/x-ruby", 50
file-magic /(.*)(\x23\x21 \x2fusr\x2fbin\x2fenv ruby)/
}
# >0 regex/1,=(^[0-9]{5})[acdn][w] (len=20), ["MARC21 Classification"], swap_endian=0
signature file-magic-auto476 {
file-mime "application/marc", 50
@ -3228,10 +2882,10 @@ signature file-magic-auto480 {
}
# >0 string,=\n( (len=2), ["Emacs v18 byte-compiled Lisp data"], swap_endian=0
signature file-magic-auto481 {
file-mime "application/x-elc", 50
file-magic /(\x0a\x28)/
}
#signature file-magic-auto481 {
# file-mime "application/x-elc", 50
# file-magic /(\x0a\x28)/
#}
# >0 string,=\021\t (len=2), ["Award BIOS Logo, 136 x 126"], swap_endian=0
signature file-magic-auto482 {
@ -3305,17 +2959,17 @@ signature file-magic-auto493 {
file-magic /(\xf7\x02)/
}
# >2 string,=\000\021 (len=2), ["TeX font metric data"], swap_endian=0
signature file-magic-auto494 {
file-mime "application/x-tex-tfm", 50
file-magic /(.{2})(\x00\x11)/
}
# >2 string,=\000\022 (len=2), ["TeX font metric data"], swap_endian=0
signature file-magic-auto495 {
file-mime "application/x-tex-tfm", 50
file-magic /(.{2})(\x00\x12)/
}
## >2 string,=\000\021 (len=2), ["TeX font metric data"], swap_endian=0
#signature file-magic-auto494 {
# file-mime "application/x-tex-tfm", 50
# file-magic /(.{2})(\x00\x11)/
#}
#
## >2 string,=\000\022 (len=2), ["TeX font metric data"], swap_endian=0
#signature file-magic-auto495 {
# file-mime "application/x-tex-tfm", 50
# file-magic /(.{2})(\x00\x12)/
#}
# >0 beshort&,=-31486 (0x8502), ["GPG encrypted data"], swap_endian=0
signature file-magic-auto496 {
@ -3470,12 +3124,6 @@ signature file-magic-auto514 {
file-magic /(.*)(\x23\x21 \x2fusr\x2fbin\x2fenv lua)/
}
# >0 search/1,=#!/usr/bin/env ruby (len=19), ["Ruby script text executable"], swap_endian=0
signature file-magic-auto515 {
file-mime "text/x-ruby", 49
file-magic /(.*)(\x23\x21\x2fusr\x2fbin\x2fenv ruby)/
}
# >0 search/1,=#! /usr/bin/env tcl (len=19), ["Tcl script text executable"], swap_endian=0
signature file-magic-auto516 {
file-mime "text/x-tcl", 49
@ -3493,12 +3141,6 @@ signature file-magic-auto519 {
file-magic /(.*)(\x23\x21\x2fusr\x2fbin\x2fenv lua)/
}
# >0 search/w/1,=#! /usr/bin/python (len=18), ["Python script text executable"], swap_endian=0
signature file-magic-auto520 {
file-mime "text/x-python", 48
file-magic /(.*)(\x23\x21 ?\x2fusr\x2fbin\x2fpython)/
}
# >0 search/w/1,=#!/usr/bin/nodejs (len=17), ["Node.js script text executable"], swap_endian=0
signature file-magic-auto521 {
file-mime "application/javascript", 47
@ -3506,10 +3148,10 @@ signature file-magic-auto521 {
}
# >0 regex,=^class[ \t\n]+ (len=12), ["C++ source text"], swap_endian=0
signature file-magic-auto522 {
file-mime "text/x-c++", 47
file-magic /(.*)(class[ \x09\x0a]+[[:alnum:]_]+)(.*)(\x7b)(.*)(public:)/
}
#signature file-magic-auto522 {
# file-mime "text/x-c++", 47
# file-magic /(.*)(class[ \x09\x0a]+[[:alnum:]_]+)(.*)(\x7b)(.*)(public:)/
#}
# >0 search/1,=This is Info file (len=17), ["GNU Info text"], swap_endian=0
signature file-magic-auto528 {
@ -3658,12 +3300,6 @@ signature file-magic-auto545 {
file-magic /(.*)(\x23\x21 ?\x2fusr\x2fbin\x2fwish)/
}
# >0 search/w/1,=#! /usr/bin/ruby (len=16), ["Ruby script text executable"], swap_endian=0
signature file-magic-auto546 {
file-mime "text/x-ruby", 46
file-magic /(.*)(\x23\x21 ?\x2fusr\x2fbin\x2fruby)/
}
# >0 search/w/1,=#! /usr/bin/lua (len=15), ["Lua script text executable"], swap_endian=0
signature file-magic-auto547 {
file-mime "text/x-lua", 45
@ -3727,10 +3363,10 @@ signature file-magic-auto556 {
}
# >0 regex,=^extern[ \t\n]+ (len=13), ["C source text"], swap_endian=0
signature file-magic-auto557 {
file-mime "text/x-c", 43
file-magic /(.*)(extern[ \x09\x0a]+)/
}
#signature file-magic-auto557 {
# file-mime "text/x-c", 43
# file-magic /(.*)(extern[ \x09\x0a]+)/
#}
# >0 search/4096,=% -*-latex-*- (len=13), ["LaTeX document text"], swap_endian=0
signature file-magic-auto558 {
@ -3746,10 +3382,10 @@ signature file-magic-auto558 {
#}
# >0 regex,=^struct[ \t\n]+ (len=13), ["C source text"], swap_endian=0
signature file-magic-auto560 {
file-mime "text/x-c", 43
file-magic /(.*)(struct[ \x09\x0a]+)/
}
#signature file-magic-auto560 {
# file-mime "text/x-c", 43
# file-magic /(.*)(struct[ \x09\x0a]+)/
#}
# >0 search/w/1,=#!/bin/nodejs (len=13), ["Node.js script text executable"], swap_endian=0
signature file-magic-auto561 {
@ -3802,10 +3438,10 @@ signature file-magic-auto567 {
}
# >0 regex,=^char[ \t\n]+ (len=11), ["C source text"], swap_endian=0
signature file-magic-auto568 {
file-mime "text/x-c", 41
file-magic /(.*)(char[ \x09\x0a]+)/
}
#signature file-magic-auto568 {
# file-mime "text/x-c", 41
# file-magic /(.*)(char[ \x09\x0a]+)/
#}
# >0 search/1,=#! (len=2), [""], swap_endian=0
# >>0 regex,=^#!.*/bin/perl$ (len=15), ["Perl script text executable"], swap_endian=0
@ -3887,23 +3523,11 @@ signature file-magic-auto578 {
file-magic /(^dnl )/
}
# >0 regex,=^all: (len=5), ["makefile script text"], swap_endian=0
signature file-magic-auto579 {
file-mime "text/x-makefile", 40
file-magic /(^all:)/
}
# >0 regex,=^.PRECIOUS (len=10), ["makefile script text"], swap_endian=0
signature file-magic-auto580 {
file-mime "text/x-makefile", 40
file-magic /(^.PRECIOUS)/
}
# >0 search/8192,=main( (len=5), ["C source text"], swap_endian=0
signature file-magic-auto581 {
file-mime "text/x-c", 40
file-magic /(.*)(main\x28)/
}
#signature file-magic-auto581 {
# file-mime "text/x-c", 40
# file-magic /(.*)(main\x28)/
#}
# Not specific enough.
# >0 search/1,=\" (len=2), ["troff or preprocessor input text"], swap_endian=0
@ -3932,22 +3556,22 @@ signature file-magic-auto584 {
#}
# >0 regex,=^#include (len=9), ["C source text"], swap_endian=0
signature file-magic-auto586 {
file-mime "text/x-c", 39
file-magic /(.*)(#include)/
}
#signature file-magic-auto586 {
# file-mime "text/x-c", 39
# file-magic /(.*)(#include)/
#}
# >0 search/1,=.\" (len=3), ["troff or preprocessor input text"], swap_endian=0
signature file-magic-auto587 {
file-mime "text/troff", 39
file-magic /(.*)(\x2e\x5c\x22)/
}
#signature file-magic-auto587 {
# file-mime "text/troff", 39
# file-magic /(.*)(\x2e\x5c\x22)/
#}
# >0 search/1,='\" (len=3), ["troff or preprocessor input text"], swap_endian=0
signature file-magic-auto588 {
file-mime "text/troff", 39
file-magic /(.*)(\x27\x5c\x22)/
}
#signature file-magic-auto588 {
# file-mime "text/troff", 39
# file-magic /(.*)(\x27\x5c\x22)/
#}
# >0 search/1,=<TeXmacs| (len=9), ["TeXmacs document text"], swap_endian=0
signature file-magic-auto589 {
@ -3974,10 +3598,10 @@ signature file-magic-auto592 {
}
# >0 search/1,=''' (len=3), ["troff or preprocessor input text"], swap_endian=0
signature file-magic-auto593 {
file-mime "text/troff", 39
file-magic /(.*)(\x27\x27\x27)/
}
#signature file-magic-auto593 {
# file-mime "text/troff", 39
# file-magic /(.*)(\x27\x27\x27)/
#}
# >0 search/4096,=try: (len=4), [""], swap_endian=0
# >>&0 regex,=^\s*except.*: (len=13), ["Python script text executable"], swap_endian=0
@ -3999,12 +3623,6 @@ signature file-magic-auto596 {
file-magic /(.*)(\x22LIBHDR\x22)/
}
# >0 regex,=^SUBDIRS (len=8), ["automake makefile script text"], swap_endian=0
signature file-magic-auto597 {
file-mime "text/x-makefile", 38
file-magic /(.*)(SUBDIRS)/
}
# >0 search/4096,=(defvar (len=8), ["Lisp/Scheme program text"], swap_endian=0
signature file-magic-auto598 {
file-mime "text/x-lisp", 38
@ -4031,19 +3649,6 @@ signature file-magic-auto600 {
# file-magic /(.*)(\x2a\x2a\x2a )/
#}
# >0 search/1,='.\" (len=4), ["troff or preprocessor input text"], swap_endian=0
signature file-magic-auto602 {
file-mime "text/troff", 38
file-magic /(.*)(\x27\x2e\x5c\x22)/
}
# LDFLAGS appears in other contexts, e.g. shell script.
# >0 regex,=^LDFLAGS (len=8), ["makefile script text"], swap_endian=0
#signature file-magic-auto603 {
# file-mime "text/x-makefile", 38
# file-magic /(.*)(LDFLAGS)/
#}
# >0 search/8192,="libhdr" (len=8), ["BCPL source text"], swap_endian=0
signature file-magic-auto604 {
file-mime "text/x-bcpl", 38
@ -4057,12 +3662,6 @@ signature file-magic-auto604 {
# file-magic /(^record)/
#}
# >0 regex,=^CFLAGS (len=7), ["makefile script text"], swap_endian=0
signature file-magic-auto606 {
file-mime "text/x-makefile", 37
file-magic /(.*)(CFLAGS)/
}
# >0 search/4096,=(defun (len=7), ["Lisp/Scheme program text"], swap_endian=0
signature file-magic-auto607 {
file-mime "text/x-lisp", 37

28
scripts/base/frameworks/files/magic/msoffice.sig Normal file
View file

@ -0,0 +1,28 @@
# This signature is non-specific and terrible but after
# searching for a long time there doesn't seem to be a
# better option.
signature file-msword {
file-magic /^\xd0\xcf\x11\xe0\xa1\xb1\x1a\xe1/
file-mime "application/msword", 50
}
signature file-ooxml {
file-magic /^PK\x03\x04\x14\x00\x06\x00/
file-mime "application/vnd.openxmlformats-officedocument", 50
}
signature file-docx {
file-magic /^PK\x03\x04.{26}(\[Content_Types\]\.xml|_rels\x2f\.rels|word\x2f).*PK\x03\x04.{26}word\x2f/
file-mime "application/vnd.openxmlformats-officedocument.wordprocessingml.document", 80
}
signature file-xlsx {
file-magic /^PK\x03\x04.{26}(\[Content_Types\]\.xml|_rels\x2f\.rels|xl\2f).*PK\x03\x04.{26}xl\x2f/
file-mime "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", 80
}
signature file-pptx {
file-magic /^PK\x03\x04.{26}(\[Content_Types\]\.xml|_rels\x2f\.rels|ppt\x2f).*PK\x03\x04.{26}ppt\x2f/
file-mime "application/vnd.openxmlformats-officedocument.presentationml.presentation", 80
}

179
scripts/base/frameworks/files/main.bro
View file

@ -100,8 +100,9 @@ export {
## during the process of analysis e.g. due to dropped packets.
missing_bytes: count &log &default=0;
## The number of not all-in-sequence bytes in the file stream that
## were delivered to file analyzers due to reassembly buffer overflow.
## The number of bytes in the file stream that were not delivered to
## stream file analyzers. This could be overlapping bytes or
## bytes that couldn't be reassembled.
overflow_bytes: count &log &default=0;
## Whether the file analysis timed out at least once for the file.
@ -124,6 +125,37 @@ export {
## generate two handles that would hash to the same file id.
const salt = "I recommend changing this." &redef;
## Decide if you want to automatically attached analyzers to
## files based on the detected mime type of the file.
const analyze_by_mime_type_automatically = T &redef;
## The default setting for if the file reassembler is enabled for
## each file.
const enable_reassembler = T &redef;
## The default per-file reassembly buffer size.
const reassembly_buffer_size = 1048576 &redef;
## Allows the file reassembler to be used if it's necessary because the
## file is transferred out of order.
##
## f: the file.
global enable_reassembly: function(f: fa_file);
## Disables the file reassembler on this file. If the file is not
## transferred out of order this will have no effect.
##
## f: the file.
global disable_reassembly: function(f: fa_file);
## Set the maximum size the reassembly buffer is allowed to grow
## for the given file.
##
## f: the file.
##
## max: Maximum allowed size of the reassembly buffer.
global set_reassembly_buffer_size: function(f: fa_file, max: count);
## Sets the *timeout_interval* field of :bro:see:`fa_file`, which is
## used to determine the length of inactivity that is allowed for a file
## before internal state related to it is cleaned up. When used within
@ -153,15 +185,6 @@ export {
tag: Files::Tag,
args: AnalyzerArgs &default=AnalyzerArgs()): bool;
## Adds all analyzers associated with a give MIME type to the analysis of
## a file. Note that analyzers added via MIME types cannot take further
## arguments.
##
## f: the file.
##
## mtype: the MIME type; it will be compared case-insensitive.
global add_analyzers_for_mime_type: function(f: fa_file, mtype: string);
## Removes an analyzer from the analysis of a given file.
##
## f: the file.
@ -284,6 +307,7 @@ global registered_protocols: table[Analyzer::Tag] of ProtoRegistration = table()
# Store the MIME type to analyzer mappings.
global mime_types: table[Analyzer::Tag] of set[string];
global mime_type_to_analyzers: table[string] of set[Analyzer::Tag];
global analyzer_add_callbacks: table[Files::Tag] of function(f: fa_file, args: AnalyzerArgs) = table();
@ -313,8 +337,6 @@ function set_info(f: fa_file)
f$info$overflow_bytes = f$overflow_bytes;
if ( f?$is_orig )
f$info$is_orig = f$is_orig;
if ( f?$mime_type )
f$info$mime_type = f$mime_type;
}
function set_timeout_interval(f: fa_file, t: interval): bool
@ -322,6 +344,21 @@ function set_timeout_interval(f: fa_file, t: interval): bool
return __set_timeout_interval(f$id, t);
}
function enable_reassembly(f: fa_file)
{
__enable_reassembly(f$id);
}
function disable_reassembly(f: fa_file)
{
__disable_reassembly(f$id);
}
function set_reassembly_buffer_size(f: fa_file, max: count)
{
__set_reassembly_buffer(f$id, max);
}
function add_analyzer(f: fa_file, tag: Files::Tag, args: AnalyzerArgs): bool
{
add f$info$analyzers[Files::analyzer_name(tag)];
@ -337,15 +374,6 @@ function add_analyzer(f: fa_file, tag: Files::Tag, args: AnalyzerArgs): bool
return T;
}
function add_analyzers_for_mime_type(f: fa_file, mtype: string)
{
local dummy_args: AnalyzerArgs;
local analyzers = __add_analyzers_for_mime_type(f$id, mtype, dummy_args);
for ( tag in analyzers )
add f$info$analyzers[Files::analyzer_name(tag)];
}
function register_analyzer_add_callback(tag: Files::Tag, callback: function(f: fa_file, args: AnalyzerArgs))
{
analyzer_add_callbacks[tag] = callback;
@ -366,42 +394,6 @@ function analyzer_name(tag: Files::Tag): string
return __analyzer_name(tag);
}
event file_new(f: fa_file) &priority=10
{
set_info(f);
if ( f?$mime_type )
add_analyzers_for_mime_type(f, f$mime_type);
}
event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priority=10
{
set_info(f);
add f$info$conn_uids[c$uid];
local cid = c$id;
add f$info$tx_hosts[f$is_orig ? cid$orig_h : cid$resp_h];
if( |Site::local_nets| > 0 )
f$info$local_orig=Site::is_local_addr(f$is_orig ? cid$orig_h : cid$resp_h);
add f$info$rx_hosts[f$is_orig ? cid$resp_h : cid$orig_h];
}
event file_timeout(f: fa_file) &priority=10
{
set_info(f);
f$info$timedout = T;
}
event file_state_remove(f: fa_file) &priority=10
{
set_info(f);
}
event file_state_remove(f: fa_file) &priority=-10
{
Log::write(Files::LOG, f$info);
}
function register_protocol(tag: Analyzer::Tag, reg: ProtoRegistration): bool
{
local result = (tag !in registered_protocols);
@ -424,13 +416,18 @@ function register_for_mime_types(tag: Analyzer::Tag, mime_types: set[string]) :
function register_for_mime_type(tag: Analyzer::Tag, mt: string) : bool
{
if ( ! __register_for_mime_type(tag, mt) )
return F;
if ( tag !in mime_types )
{
mime_types[tag] = set();
}
add mime_types[tag][mt];
if ( mt !in mime_type_to_analyzers )
{
mime_type_to_analyzers[mt] = set();
}
add mime_type_to_analyzers[mt][tag];
return T;
}
@ -462,3 +459,61 @@ event get_file_handle(tag: Analyzer::Tag, c: connection, is_orig: bool) &priorit
local handler = registered_protocols[tag];
set_file_handle(handler$get_file_handle(c, is_orig));
}
event file_new(f: fa_file) &priority=10
{
set_info(f);
if ( enable_reassembler )
{
Files::enable_reassembly(f);
Files::set_reassembly_buffer_size(f, reassembly_buffer_size);
}
}
event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priority=10
{
set_info(f);
add f$info$conn_uids[c$uid];
local cid = c$id;
add f$info$tx_hosts[f$is_orig ? cid$orig_h : cid$resp_h];
if( |Site::local_nets| > 0 )
f$info$local_orig=Site::is_local_addr(f$is_orig ? cid$orig_h : cid$resp_h);
add f$info$rx_hosts[f$is_orig ? cid$resp_h : cid$orig_h];
}
event file_mime_type(f: fa_file, mime_type: string) &priority=10
{
set_info(f);
f$info$mime_type = mime_type;
if ( analyze_by_mime_type_automatically &&
mime_type in mime_type_to_analyzers )
{
local analyzers = mime_type_to_analyzers[mime_type];
for ( a in analyzers )
{
add f$info$analyzers[Files::analyzer_name(a)];
Files::add_analyzer(f, a);
}
}
}
event file_timeout(f: fa_file) &priority=10
{
set_info(f);
f$info$timedout = T;
}
event file_state_remove(f: fa_file) &priority=10
{
set_info(f);
}
event file_state_remove(f: fa_file) &priority=-10
{
Log::write(Files::LOG, f$info);
}

7
scripts/base/frameworks/intel/main.bro
View file

@ -67,6 +67,7 @@ export {
IN_ANYWHERE,
};
## Information about a piece of "seen" data.
type Seen: record {
## The string if the data is about a string.
indicator: string &log &optional;
@ -124,7 +125,7 @@ export {
sources: set[string] &log &default=string_set();
};
## Intelligence data manipulation functions.
## Intelligence data manipulation function.
global insert: function(item: Item);
## Function to declare discovery of a piece of data in order to check
@ -289,8 +290,8 @@ event Intel::match(s: Seen, items: set[Item]) &priority=5
if ( ! info?$fuid )
info$fuid = s$f$id;
if ( ! info?$file_mime_type && s$f?$mime_type )
info$file_mime_type = s$f$mime_type;
if ( ! info?$file_mime_type && s$f?$info && s$f$info?$mime_type )
info$file_mime_type = s$f$info$mime_type;
if ( ! info?$file_desc )
info$file_desc = Files::describe(s$f);

4
scripts/base/frameworks/notice/main.bro
View file

@ -531,8 +531,8 @@ function create_file_info(f: fa_file): Notice::FileInfo
local fi: Notice::FileInfo = Notice::FileInfo($fuid = f$id,
$desc = Files::describe(f));
if ( f?$mime_type )
fi$mime = f$mime_type;
if ( f?$info && f$info?$mime_type )
fi$mime = f$info$mime_type;
if ( f?$conns && |f$conns| == 1 )
for ( id in f$conns )

23
scripts/base/init-bare.bro
View file

@ -353,9 +353,10 @@ type connection: record {
## gives up and discards any internal state related to the file.
const default_file_timeout_interval: interval = 2 mins &redef;
## Default amount of bytes that file analysis will buffer before raising
## :bro:see:`file_new`.
const default_file_bof_buffer_size: count = 1024 &redef;
## Default amount of bytes that file analysis will buffer in order to use
## for mime type matching. File analyzers attached at the time of mime type
## matching or later, will receive a copy of this buffer.
const default_file_bof_buffer_size: count = 4096 &redef;
## A file that Bro is analyzing. This is Bro's type for describing the basic
## internal metadata collected about a "file", which is essentially just a
@ -394,8 +395,10 @@ type fa_file: record {
## during the process of analysis e.g. due to dropped packets.
missing_bytes: count &default=0;
## The number of not all-in-sequence bytes in the file stream that
## were delivered to file analyzers due to reassembly buffer overflow.
## The number of bytes in the file stream that were not delivered to
## stream file analyzers. Generally, this consists of bytes that
## couldn't be reassembled, either because reassembly simply isn't
## enabled, or due to size limitations of the reassembly buffer.
overflow_bytes: count &default=0;
## The amount of time between receiving new data for this file that
@ -409,16 +412,6 @@ type fa_file: record {
## The content of the beginning of a file up to *bof_buffer_size* bytes.
## This is also the buffer that's used for file/mime type detection.
bof_buffer: string &optional;
## The mime type of the strongest file magic signature matches against
## the data chunk in *bof_buffer*, or in the cases where no buffering
## of the beginning of file occurs, an initial guess of the mime type
## based on the first data seen.
mime_type: string &optional;
## All mime types that matched file magic signatures against the data
## chunk in *bof_buffer*, in order of their strength value.
mime_types: mime_matches &optional;
} &redef;
## Fields of a SYN packet.

1
scripts/base/init-default.bro
View file

@ -47,6 +47,7 @@
@load base/protocols/irc
@load base/protocols/krb
@load base/protocols/modbus
@load base/protocols/mysql
@load base/protocols/pop3
@load base/protocols/radius
@load base/protocols/snmp

17
scripts/base/protocols/ftp/files.bro
View file

@ -17,6 +17,10 @@ export {
## Describe the file being transferred.
global describe_file: function(f: fa_file): string;
redef record fa_file += {
ftp: FTP::Info &optional;
};
}
function get_file_handle(c: connection, is_orig: bool): string
@ -48,7 +52,6 @@ event bro_init() &priority=5
$describe = FTP::describe_file]);
}
event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priority=5
{
if ( [c$id$resp_h, c$id$resp_p] !in ftp_data_expected )
@ -56,6 +59,14 @@ event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priori
local ftp = ftp_data_expected[c$id$resp_h, c$id$resp_p];
ftp$fuid = f$id;
if ( f?$mime_type )
ftp$mime_type = f$mime_type;
f$ftp = ftp;
}
event file_mime_type(f: fa_file, mime_type: string) &priority=5
{
if ( ! f?$ftp )
return;
f$ftp$mime_type = mime_type;
}

42
scripts/base/protocols/http/entities.bro
View file

@ -35,6 +35,10 @@ export {
## body.
resp_mime_depth: count &default=0;
};
redef record fa_file += {
http: HTTP::Info &optional;
};
}
event http_begin_entity(c: connection, is_orig: bool) &priority=10
@ -67,6 +71,8 @@ event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priori
{
if ( f$source == "HTTP" && c?$http )
{
f$http = c$http;
if ( c$http?$current_entity && c$http$current_entity?$filename )
f$info$filename = c$http$current_entity$filename;
@ -76,14 +82,6 @@ event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priori
c$http$orig_fuids = string_vec(f$id);
else
c$http$orig_fuids[|c$http$orig_fuids|] = f$id;
if ( f?$mime_type )
{
if ( ! c$http?$orig_mime_types )
c$http$orig_mime_types = string_vec(f$mime_type);
else
c$http$orig_mime_types[|c$http$orig_mime_types|] = f$mime_type;
}
}
else
{
@ -91,17 +89,29 @@ event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priori
c$http$resp_fuids = string_vec(f$id);
else
c$http$resp_fuids[|c$http$resp_fuids|] = f$id;
if ( f?$mime_type )
{
if ( ! c$http?$resp_mime_types )
c$http$resp_mime_types = string_vec(f$mime_type);
else
c$http$resp_mime_types[|c$http$resp_mime_types|] = f$mime_type;
}
}
}
}
event file_mime_type(f: fa_file, mime_type: string) &priority=5
{
if ( ! f?$http || ! f?$is_orig )
return;
if ( f$is_orig )
{
if ( ! f$http?$orig_mime_types )
f$http$orig_mime_types = string_vec(mime_type);
else
f$http$orig_mime_types[|f$http$orig_mime_types|] = mime_type;
}
else
{
if ( ! f$http?$resp_mime_types )
f$http$resp_mime_types = string_vec(mime_type);
else
f$http$resp_mime_types[|f$http$resp_mime_types|] = mime_type;
}
}
event http_end_entity(c: connection, is_orig: bool) &priority=5

14
scripts/base/protocols/irc/files.bro
View file

@ -12,6 +12,10 @@ export {
## Default file handle provider for IRC.
global get_file_handle: function(c: connection, is_orig: bool): string;
redef record fa_file += {
irc: IRC::Info &optional;
};
}
function get_file_handle(c: connection, is_orig: bool): string
@ -34,6 +38,12 @@ event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priori
irc$fuid = f$id;
if ( irc?$dcc_file_name )
f$info$filename = irc$dcc_file_name;
if ( f?$mime_type )
irc$dcc_mime_type = f$mime_type;
f$irc = irc;
}
event file_mime_type(f: fa_file, mime_type: string) &priority=5
{
if ( f?$irc )
f$irc$dcc_mime_type = mime_type;
}

1
scripts/base/protocols/mysql/__load__.bro Normal file
View file

@ -0,0 +1 @@
@load ./main

38
scripts/base/protocols/mysql/consts.bro Normal file
View file

@ -0,0 +1,38 @@
module MySQL;
export {
const commands: table[count] of string = {
[0] = "sleep",
[1] = "quit",
[2] = "init_db",
[3] = "query",
[4] = "field_list",
[5] = "create_db",
[6] = "drop_db",
[7] = "refresh",
[8] = "shutdown",
[9] = "statistics",
[10] = "process_info",
[11] = "connect",
[12] = "process_kill",
[13] = "debug",
[14] = "ping",
[15] = "time",
[16] = "delayed_insert",
[17] = "change_user",
[18] = "binlog_dump",
[19] = "table_dump",
[20] = "connect_out",
[21] = "register_slave",
[22] = "stmt_prepare",
[23] = "stmt_execute",
[24] = "stmt_send_long_data",
[25] = "stmt_close",
[26] = "stmt_reset",
[27] = "set_option",
[28] = "stmt_fetch",
[29] = "daemon",
[30] = "binlog_dump_gtid",
[31] = "reset_connection",
} &default=function(i: count): string { return fmt("unknown-%d", i); };
}

116
scripts/base/protocols/mysql/main.bro Normal file
View file

@ -0,0 +1,116 @@
##! Implements base functionality for MySQL analysis. Generates the mysql.log file.
module MySQL;
@load ./consts
export {
redef enum Log::ID += { mysql::LOG };
type Info: record {
## Timestamp for when the event happened.
ts: time &log;
## Unique ID for the connection.
uid: string &log;
## The connection's 4-tuple of endpoint addresses/ports.
id: conn_id &log;
## The command that was issued
cmd: string &log;
## The argument issued to the command
arg: string &log;
## The result (error, OK, etc.) from the server
result: string &log &optional;
## Server message, if any
response: string &log &optional;
};
## Event that can be handled to access the MySQL record as it is sent on
## to the logging framework.
global log_mysql: event(rec: Info);
}
redef record connection += {
mysql: Info &optional;
};
const ports = { 1434/tcp, 3306/tcp };
event bro_init() &priority=5
{
Log::create_stream(mysql::LOG, [$columns=Info, $ev=log_mysql]);
Analyzer::register_for_ports(Analyzer::ANALYZER_MYSQL, ports);
}
event mysql_handshake(c: connection, username: string)
{
if ( ! c?$mysql )
{
local info: Info;
info$ts = network_time();
info$uid = c$uid;
info$id = c$id;
info$cmd = "login";
info$arg = username;
c$mysql = info;
}
}
event mysql_command_request(c: connection, command: count, arg: string) &priority=5
{
if ( ! c?$mysql )
{
local info: Info;
info$ts = network_time();
info$uid = c$uid;
info$id = c$id;
info$cmd = commands[command];
info$arg = sub(arg, /\0$/, "");
c$mysql = info;
}
}
event mysql_command_request(c: connection, command: count, arg: string) &priority=-5
{
if ( c?$mysql && c$mysql?$cmd && c$mysql$cmd == "quit" )
{
# We get no response for quits, so let's just log it now.
Log::write(mysql::LOG, c$mysql);
delete c$mysql;
}
}
event mysql_error(c: connection, code: count, msg: string) &priority=5
{
if ( c?$mysql )
{
c$mysql$result = "error";
c$mysql$response = msg;
}
}
event mysql_error(c: connection, code: count, msg: string) &priority=-5
{
if ( c?$mysql )
{
Log::write(mysql::LOG, c$mysql);
delete c$mysql;
}
}
event mysql_ok(c: connection, affected_rows: count) &priority=5
{
if ( c?$mysql )
{
c$mysql$result = "ok";
c$mysql$response = fmt("Affected rows: %d", affected_rows);
}
}
event mysql_ok(c: connection, affected_rows: count) &priority=-5
{
if ( c?$mysql )
{
Log::write(mysql::LOG, c$mysql);
delete c$mysql;
}
}

3
scripts/base/utils/exec.bro
View file

@ -96,8 +96,9 @@ event Exec::file_line(description: Input::EventDescription, tpe: Input::Event, s
result$files[track_file][|result$files[track_file]|] = s;
}
event Input::end_of_data(name: string, source:string)
event Input::end_of_data(orig_name: string, source:string)
{
local name = orig_name;
local parts = split1(name, /_/);
name = parts[1];

103
scripts/base/utils/urls.bro
View file

@ -3,6 +3,28 @@
## A regular expression for matching and extracting URLs.
const url_regex = /^([a-zA-Z\-]{3,5})(:\/\/[^\/?#"'\r\n><]*)([^?#"'\r\n><]*)([^[:blank:]\r\n"'><]*|\??[^"'\r\n><]*)/ &redef;
## A URI, as parsed by :bro:id:`decompose_uri`.
type URI: record {
## The URL's scheme..
scheme: string &optional;
## The location, which could be a domain name or an IP address. Left empty if not
## specified.
netlocation: string;
## Port number, if included in URI.
portnum: count &optional;
## Full including the file name. Will be '/' if there's not path given.
path: string;
## Full file name, including extension, if there is a file name.
file_name: string &optional;
## The base filename, without extension, if there is a file name.
file_base: string &optional;
## The filename's extension, if there is a file name.
file_ext: string &optional;
## A table of all query parameters, mapping their keys to values, if there's a
## query.
params: table[string] of string &optional;
};
## Extracts URLs discovered in arbitrary text.
function find_all_urls(s: string): string_set
{
@ -23,3 +45,84 @@ function find_all_urls_without_scheme(s: string): string_set
return return_urls;
}
function decompose_uri(s: string): URI
{
local parts: string_array;
local u: URI = [$netlocation="", $path="/"];
if ( /\?/ in s)
{
# Parse query.
u$params = table();
parts = split1(s, /\?/);
s = parts[1];
local query: string = parts[2];
if ( /&/ in query )
{
local opv: table[count] of string = split(query, /&/);
for ( each in opv )
{
if ( /=/ in opv[each] )
{
parts = split1(opv[each], /=/);
u$params[parts[1]] = parts[2];
}
}
}
else
{
parts = split1(query, /=/);
u$params[parts[1]] = parts[2];
}
}
if ( /:\/\// in s )
{
# Parse scheme and remove from s.
parts = split1(s, /:\/\//);
u$scheme = parts[1];
s = parts[2];
}
if ( /\// in s )
{
# Parse path and remove from s.
parts = split1(s, /\//);
s = parts[1];
u$path = fmt("/%s", parts[2]);
if ( |u$path| > 1 && u$path[|u$path| - 1] != "/" )
{
local last_token: string = find_last(u$path, /\/.+/);
local full_filename = split1(last_token, /\//)[2];
if ( /\./ in full_filename )
{
u$file_name = full_filename;
u$file_base = split1(full_filename, /\./)[1];
u$file_ext = split1(full_filename, /\./)[2];
}
else
{
u$file_name = full_filename;
u$file_base = full_filename;
}
}
}
if ( /:/ in s )
{
# Parse location and port.
parts = split1(s, /:/);
u$netlocation = parts[1];
u$portnum = to_count(parts[2]);
}
else
u$netlocation = s;
return u;
}

3
scripts/policy/frameworks/files/detect-MHR.bro
View file

@ -66,6 +66,7 @@ function do_mhr_lookup(hash: string, fi: Notice::FileInfo)
event file_hash(f: fa_file, kind: string, hash: string)
{
if ( kind == "sha1" && f?$mime_type && match_file_types in f$mime_type )
if ( kind == "sha1" && f?$info && f$info?$mime_type &&
match_file_types in f$info$mime_type )
do_mhr_lookup(hash, Notice::create_file_info(f));
}

2
scripts/policy/frameworks/software/windows-version-detection.bro
View file

@ -4,6 +4,7 @@
##!
##! This script will log the version of Windows that was identified to the Software framework.
@load base/protocols/http
@load base/frameworks/software
module OS;
@ -46,6 +47,7 @@ export {
["Microsoft-CryptoAPI/6.1"] = [$name="Windows", $version=[$major=6, $minor=1, $addl="7 or Server 2008 R2"]],
["Microsoft-CryptoAPI/6.2"] = [$name="Windows", $version=[$major=6, $minor=2, $addl="8 or Server 2012"]],
["Microsoft-CryptoAPI/6.3"] = [$name="Windows", $version=[$major=6, $minor=3, $addl="8.1 or Server 2012 R2"]],
["Microsoft-CryptoAPI/6.4"] = [$name="Windows", $version=[$major=6, $minor=4, $addl="10 Technical Preview"]],
} &redef;
}

20
scripts/policy/protocols/mysql/software.bro Normal file
View file

@ -0,0 +1,20 @@
##! Software identification and extraction for MySQL traffic.
@load base/frameworks/software
module MySQL;
export {
redef enum Software::Type += {
## Identifier for MySQL servers in the software framework.
SERVER,
};
}
event mysql_server_version(c: connection, ver: string)
{
if ( ver == "" )
return;
Software::found(c$id, [$unparsed_version=ver, $host=c$id$resp_h, $software_type=SERVER]);
}

2
scripts/policy/protocols/ssl/weak-keys.bro
View file

@ -65,7 +65,7 @@ event ssl_dh_server_params(c: connection, p: string, q: string, Ys: string) &pri
if ( ! addr_matches_host(c$id$resp_h, notify_weak_keys) )
return;
local key_length = |Ys| * 8; # key length in bits
local key_length = |p| * 8; # length of the used prime number in bits
if ( key_length < notify_minimal_key_length )
NOTICE([$note=Weak_Key,

2
scripts/test-all-policy.bro
View file

@ -32,6 +32,7 @@
@load frameworks/packet-filter/shunt.bro
@load frameworks/software/version-changes.bro
@load frameworks/software/vulnerable.bro
@load frameworks/software/windows-version-detection.bro
@load integration/barnyard2/__load__.bro
@load integration/barnyard2/main.bro
@load integration/barnyard2/types.bro
@ -75,6 +76,7 @@
@load protocols/http/var-extraction-uri.bro
@load protocols/modbus/known-masters-slaves.bro
@load protocols/modbus/track-memmap.bro
@load protocols/mysql/software.bro
@load protocols/smtp/blocklists.bro
@load protocols/smtp/detect-suspicious-orig.bro
@load protocols/smtp/entities-excerpt.bro

11
src/Attr.cc
View file

@ -265,6 +265,14 @@ void Attributes::CheckAttr(Attr* a)
// Ok.
break;
Expr* e = a->AttrExpr();
if ( check_and_promote_expr(e, type) )
{
a->SetAttrExpr(e);
// Ok.
break;
}
a->AttrExpr()->Error("&default value has inconsistent type", type);
}
@ -297,8 +305,11 @@ void Attributes::CheckAttr(Attr* a)
Expr* e = a->AttrExpr();
if ( check_and_promote_expr(e, ytype) )
{
a->SetAttrExpr(e);
// Ok.
break;
}
Error("&default value has inconsistent type 2");
}

7
src/Attr.h
View file

@ -45,6 +45,13 @@ public:
attr_tag Tag() const { return tag; }
Expr* AttrExpr() const { return expr; }
// Up to the caller to decide if previous expr can be unref'd since it may
// not always be safe; e.g. expressions (at time of writing) don't always
// keep careful track of referencing their operands, so doing something
// like SetAttrExpr(coerce(AttrExpr())) must not completely unref the
// previous expr as the new expr depends on it.
void SetAttrExpr(Expr* e) { expr = e; }
int RedundantAttrOkay() const
{ return tag == ATTR_REDEF || tag == ATTR_OPTIONAL; }

8
src/CMakeLists.txt
View file

@ -48,7 +48,7 @@ set(BISON_FLAGS "--debug")
bison_target(BIFParser builtin-func.y
${CMAKE_CURRENT_BINARY_DIR}/bif_parse.cc
HEADER ${CMAKE_CURRENT_BINARY_DIR}/bif_parse.h
VERBOSE ${CMAKE_CURRENT_BINARY_DIR}/bif_parse.output
#VERBOSE ${CMAKE_CURRENT_BINARY_DIR}/bif_parse.output
COMPILE_FLAGS "${BISON_FLAGS}")
flex_target(BIFScanner builtin-func.l ${CMAKE_CURRENT_BINARY_DIR}/bif_lex.cc)
add_flex_bison_dependency(BIFScanner BIFParser)
@ -57,7 +57,7 @@ add_flex_bison_dependency(BIFScanner BIFParser)
bison_target(RuleParser rule-parse.y
${CMAKE_CURRENT_BINARY_DIR}/rup.cc
HEADER ${CMAKE_CURRENT_BINARY_DIR}/rup.h
VERBOSE ${CMAKE_CURRENT_BINARY_DIR}/rule_parse.output
#VERBOSE ${CMAKE_CURRENT_BINARY_DIR}/rule_parse.output
COMPILE_FLAGS "${BISON_FLAGS}")
replace_yy_prefix_target(${CMAKE_CURRENT_BINARY_DIR}/rup.cc
${CMAKE_CURRENT_BINARY_DIR}/rule-parse.cc
@ -72,7 +72,7 @@ flex_target(RuleScanner rule-scan.l ${CMAKE_CURRENT_BINARY_DIR}/rule-scan.cc
bison_target(REParser re-parse.y
${CMAKE_CURRENT_BINARY_DIR}/rep.cc
HEADER ${CMAKE_CURRENT_BINARY_DIR}/re-parse.h
VERBOSE ${CMAKE_CURRENT_BINARY_DIR}/re_parse.output
#VERBOSE ${CMAKE_CURRENT_BINARY_DIR}/re_parse.output
COMPILE_FLAGS "${BISON_FLAGS}")
replace_yy_prefix_target(${CMAKE_CURRENT_BINARY_DIR}/rep.cc
${CMAKE_CURRENT_BINARY_DIR}/re-parse.cc
@ -85,7 +85,7 @@ add_flex_bison_dependency(REScanner REParser)
bison_target(Parser parse.y
${CMAKE_CURRENT_BINARY_DIR}/p.cc
HEADER ${CMAKE_CURRENT_BINARY_DIR}/broparse.h
VERBOSE ${CMAKE_CURRENT_BINARY_DIR}/parse.output
#VERBOSE ${CMAKE_CURRENT_BINARY_DIR}/parse.output
COMPILE_FLAGS "${BISON_FLAGS}")
replace_yy_prefix_target(${CMAKE_CURRENT_BINARY_DIR}/p.cc
${CMAKE_CURRENT_BINARY_DIR}/parse.cc

4
src/Expr.cc
View file

@ -1438,7 +1438,7 @@ bool AddExpr::DoUnserialize(UnserialInfo* info)
}
AddToExpr::AddToExpr(Expr* arg_op1, Expr* arg_op2)
: BinaryExpr(EXPR_ADD_TO, arg_op1, arg_op2)
: BinaryExpr(EXPR_ADD_TO, arg_op1->MakeLvalue(), arg_op2)
{
if ( IsError() )
return;
@ -1562,7 +1562,7 @@ bool SubExpr::DoUnserialize(UnserialInfo* info)
}
RemoveFromExpr::RemoveFromExpr(Expr* arg_op1, Expr* arg_op2)
: BinaryExpr(EXPR_REMOVE_FROM, arg_op1, arg_op2)
: BinaryExpr(EXPR_REMOVE_FROM, arg_op1->MakeLvalue(), arg_op2)
{
if ( IsError() )
return;

2
src/Frag.cc
View file

@ -28,7 +28,7 @@ void FragTimer::Dispatch(double t, int /* is_expire */)
FragReassembler::FragReassembler(NetSessions* arg_s,
const IP_Hdr* ip, const u_char* pkt,
HashKey* k, double t)
: Reassembler(0, REASSEM_IP)
: Reassembler(0)
{
s = arg_s;
key = k;

48
src/IP.cc
View file

@ -636,3 +636,51 @@ VectorVal* IPv6_Hdr_Chain::BuildVal() const
return rval;
}
IP_Hdr* IP_Hdr::Copy() const
{
char* new_hdr = new char[HdrLen()];
if ( ip4 )
{
memcpy(new_hdr, ip4, HdrLen());
return new IP_Hdr((const struct ip*) new_hdr, true);
}
memcpy(new_hdr, ip6, HdrLen());
const struct ip6_hdr* new_ip6 = (const struct ip6_hdr*)new_hdr;
IPv6_Hdr_Chain* new_ip6_hdrs = ip6_hdrs->Copy(new_ip6);
return new IP_Hdr(new_ip6, true, 0, new_ip6_hdrs);
}
IPv6_Hdr_Chain* IPv6_Hdr_Chain::Copy(const ip6_hdr* new_hdr) const
{
IPv6_Hdr_Chain* rval = new IPv6_Hdr_Chain;
rval->length = length;
#ifdef ENABLE_MOBILE_IPV6
if ( homeAddr )
rval->homeAddr = new IPAddr(*homeAddr);
#endif
if ( finalDst )
rval->finalDst = new IPAddr(*finalDst);
if ( chain.empty() )
{
reporter->InternalWarning("empty IPv6 header chain");
delete rval;
return 0;
}
const u_char* new_data = (const u_char*)new_hdr;
const u_char* old_data = chain[0]->Data();
for ( size_t i = 0; i < chain.size(); ++i )
{
int off = chain[i]->Data() - old_data;
rval->chain.push_back(new IPv6_Hdr(chain[i]->Type(), new_data + off));
}
return rval;
}

22
src/IP.h
View file

@ -157,6 +157,12 @@ public:
delete finalDst;
}
/**
* @return a copy of the header chain, but with pointers to individual
* IPv6 headers now pointing within \a new_hdr.
*/
IPv6_Hdr_Chain* Copy(const struct ip6_hdr* new_hdr) const;
/**
* Returns the number of headers in the chain.
*/
@ -264,6 +270,14 @@ protected:
// point to a fragment
friend class FragReassembler;
IPv6_Hdr_Chain() :
length(0),
#ifdef ENABLE_MOBILE_IPV6
homeAddr(0),
#endif
finalDst(0)
{}
/**
* Initializes the header chain from an IPv6 header structure, and replaces
* the first next protocol pointer field that points to a fragment header.
@ -353,6 +367,13 @@ public:
{
}
/**
* Copy a header. The internal buffer which contains the header data
* must not be truncated. Also note that if that buffer points to a full
* packet payload, only the IP header portion is copied.
*/
IP_Hdr* Copy() const;
/**
* Destructor.
*/
@ -554,6 +575,7 @@ public:
RecordVal* BuildPktHdrVal() const;
private:
const struct ip* ip4;
const struct ip6_hdr* ip6;
bool del;

2
src/Reassem.cc
View file

@ -31,7 +31,7 @@ DataBlock::DataBlock(const u_char* data, uint64 size, uint64 arg_seq,
uint64 Reassembler::total_size = 0;
Reassembler::Reassembler(uint64 init_seq, ReassemblerType arg_type)
Reassembler::Reassembler(uint64 init_seq)
{
blocks = last_block = 0;
trim_seq = last_reassem_seq = init_seq;

3
src/Reassem.h
View file

@ -22,11 +22,10 @@ public:
};
enum ReassemblerType { REASSEM_IP, REASSEM_TCP };
class Reassembler : public BroObj {
public:
Reassembler(uint64 init_seq, ReassemblerType arg_type);
Reassembler(uint64 init_seq);
virtual ~Reassembler();
void NewBlock(double t, uint64 seq, uint64 len, const u_char* data);

1
src/SerialTypes.h
View file

@ -87,6 +87,7 @@ SERIAL_TCP_CONTENTS(TCP_NVT, 3)
#define SERIAL_REASSEMBLER(name, val) SERIAL_CONST(name, val, REASSEMBLER)
SERIAL_REASSEMBLER(REASSEMBLER, 1)
SERIAL_REASSEMBLER(TCP_REASSEMBLER, 2)
SERIAL_REASSEMBLER(FILE_REASSEMBLER, 3)
#define SERIAL_VAL(name, val) SERIAL_CONST(name, val, VAL)
SERIAL_VAL(VAL, 1)

1
src/analyzer/protocol/CMakeLists.txt
View file

@ -22,6 +22,7 @@ add_subdirectory(krb)
add_subdirectory(login)
add_subdirectory(mime)
add_subdirectory(modbus)
add_subdirectory(mysql)
add_subdirectory(ncp)
add_subdirectory(netbios)
add_subdirectory(netflow)

10
src/analyzer/protocol/mysql/CMakeLists.txt Normal file
View file

@ -0,0 +1,10 @@
include(BroPlugin)
include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
bro_plugin_begin(Bro MySQL)
bro_plugin_cc(MySQL.cc Plugin.cc)
bro_plugin_bif(events.bif)
bro_plugin_pac(mysql.pac mysql-analyzer.pac mysql-protocol.pac)
bro_plugin_end()

65
src/analyzer/protocol/mysql/MySQL.cc Normal file
View file

@ -0,0 +1,65 @@
// See the file "COPYING" in the main distribution directory for copyright.
#include "MySQL.h"
#include "analyzer/protocol/tcp/TCP_Reassembler.h"
#include "Reporter.h"
#include "events.bif.h"
using namespace analyzer::MySQL;
MySQL_Analyzer::MySQL_Analyzer(Connection* c)
: tcp::TCP_ApplicationAnalyzer("MySQL", c)
{
interp = new binpac::MySQL::MySQL_Conn(this);
had_gap = false;
}
MySQL_Analyzer::~MySQL_Analyzer()
{
delete interp;
}
void MySQL_Analyzer::Done()
{
tcp::TCP_ApplicationAnalyzer::Done();
interp->FlowEOF(true);
interp->FlowEOF(false);
}
void MySQL_Analyzer::EndpointEOF(bool is_orig)
{
tcp::TCP_ApplicationAnalyzer::EndpointEOF(is_orig);
interp->FlowEOF(is_orig);
}
void MySQL_Analyzer::DeliverStream(int len, const u_char* data, bool orig)
{
tcp::TCP_ApplicationAnalyzer::DeliverStream(len, data, orig);
assert(TCP());
if ( TCP()->IsPartial() )
return;
if ( had_gap )
// If only one side had a content gap, we could still try to
// deliver data to the other side if the script layer can
// handle this.
return;
try
{
interp->NewData(orig, data, data + len);
}
catch ( const binpac::Exception& e )
{
reporter->Weird(e.msg().c_str());
}
}
void MySQL_Analyzer::Undelivered(uint64 seq, int len, bool orig)
{
tcp::TCP_ApplicationAnalyzer::Undelivered(seq, len, orig);
had_gap = true;
interp->NewGap(orig, len);
}

40
src/analyzer/protocol/mysql/MySQL.h Normal file
View file

@ -0,0 +1,40 @@
// See the file "COPYING" in the main distribution directory for copyright.
#ifndef ANALYZER_PROTOCOL_MYSQL_MYSQL_H
#define ANALYZER_PROTOCOL_MYSQL_MYSQL_H
#include "events.bif.h"
#include "analyzer/protocol/tcp/TCP.h"
#include "mysql_pac.h"
namespace analyzer { namespace MySQL {
class MySQL_Analyzer
: public tcp::TCP_ApplicationAnalyzer {
public:
MySQL_Analyzer(Connection* conn);
virtual ~MySQL_Analyzer();
// Overriden from Analyzer.
virtual void Done();
virtual void DeliverStream(int len, const u_char* data, bool orig);
virtual void Undelivered(uint64 seq, int len, bool orig);
// Overriden from tcp::TCP_ApplicationAnalyzer.
virtual void EndpointEOF(bool is_orig);
static analyzer::Analyzer* Instantiate(Connection* conn)
{ return new MySQL_Analyzer(conn); }
protected:
binpac::MySQL::MySQL_Conn* interp;
bool had_gap;
};
} } // namespace analyzer::*
#endif

21
src/analyzer/protocol/mysql/Plugin.cc Normal file
View file

@ -0,0 +1,21 @@
// See the file "COPYING" in the main distribution directory for copyright.
#include "plugin/Plugin.h"
#include "MySQL.h"
namespace plugin {
namespace Bro_MySQL {
class Plugin : public plugin::Plugin {
public:
plugin::Configuration Configure()
{
AddComponent(new ::analyzer::Component("MySQL", ::analyzer::MySQL::MySQL_Analyzer::Instantiate));
plugin::Configuration config;
config.name = "Bro::MySQL";
config.description = "MySQL analyzer";
return config;
}
} plugin;
}
}

65
src/analyzer/protocol/mysql/events.bif Normal file
View file

@ -0,0 +1,65 @@
## Generated for a command request from a MySQL client.
##
## See the MySQL `documentation <http://dev.mysql.com/doc/internals/en/client-server-protocol.html>`__
## for more information about the MySQL protocol.
##
## c: The connection.
##
## command: The numerical code of the command issued.
##
## arg: The argument for the command (empty string if not provided).
##
## .. bro:see:: mysql_error mysql_ok mysql_server_version mysql_handshake_response
event mysql_command_request%(c: connection, command: count, arg: string%);
## Generated for an unsuccessful MySQL response.
##
## See the MySQL `documentation <http://dev.mysql.com/doc/internals/en/client-server-protocol.html>`__
## for more information about the MySQL protocol.
##
## c: The connection.
##
## code: The error code.
##
## msg: Any extra details about the error (empty string if not provided).
##
## .. bro:see:: mysql_command_request mysql_ok mysql_server_version mysql_handshake_response
event mysql_error%(c: connection, code: count, msg: string%);
## Generated for a successful MySQL response.
##
## See the MySQL `documentation <http://dev.mysql.com/doc/internals/en/client-server-protocol.html>`__
## for more information about the MySQL protocol.
##
## c: The connection.
##
## affected_rows: The number of rows that were affected.
##
## .. bro:see:: mysql_command_request mysql_error mysql_server_version mysql_handshake_response
event mysql_ok%(c: connection, affected_rows: count%);
## Generated for the initial server handshake packet, which includes the MySQL server version.
##
## See the MySQL `documentation <http://dev.mysql.com/doc/internals/en/client-server-protocol.html>`__
## for more information about the MySQL protocol.
##
## c: The connection.
##
## ver: The server version string.
##
## .. bro:see:: mysql_command_request mysql_error mysql_ok mysql_handshake_response
event mysql_server_version%(c: connection, ver: string%);
## Generated for a client handshake response packet, which includes the username the client is attempting
## to connect as.
##
## See the MySQL `documentation <http://dev.mysql.com/doc/internals/en/client-server-protocol.html>`__
## for more information about the MySQL protocol.
##
## c: The connection.
##
## username: The username supplied by the client
##
## .. bro:see:: mysql_command_request mysql_error mysql_ok mysql_server_version
event mysql_handshake%(c: connection, username: string%);

98
src/analyzer/protocol/mysql/mysql-analyzer.pac Normal file
View file

@ -0,0 +1,98 @@
# See the file "COPYING" in the main distribution directory for copyright.
refine flow MySQL_Flow += {
function proc_mysql_initial_handshake_packet(msg: Initial_Handshake_Packet): bool
%{
if ( mysql_server_version )
{
if ( ${msg.version} == 10 )
BifEvent::generate_mysql_server_version(connection()->bro_analyzer(),
connection()->bro_analyzer()->Conn(),
bytestring_to_val(${msg.handshake10.server_version}));
if ( ${msg.version} == 9 )
BifEvent::generate_mysql_server_version(connection()->bro_analyzer(),
connection()->bro_analyzer()->Conn(),
bytestring_to_val(${msg.handshake9.server_version}));
}
return true;
%}
function proc_mysql_handshake_response_packet(msg: Handshake_Response_Packet): bool
%{
if ( mysql_handshake )
{
if ( ${msg.version} == 10 )
BifEvent::generate_mysql_handshake(connection()->bro_analyzer(),
connection()->bro_analyzer()->Conn(),
bytestring_to_val(${msg.v10_response.username}));
if ( ${msg.version} == 9 )
BifEvent::generate_mysql_handshake(connection()->bro_analyzer(),
connection()->bro_analyzer()->Conn(),
bytestring_to_val(${msg.v9_response.username}));
}
return true;
%}
function proc_mysql_command_request_packet(msg: Command_Request_Packet): bool
%{
if ( mysql_command_request )
BifEvent::generate_mysql_command_request(connection()->bro_analyzer(),
connection()->bro_analyzer()->Conn(),
${msg.command},
bytestring_to_val(${msg.arg}));
return true;
%}
function proc_err_packet(msg: ERR_Packet): bool
%{
if ( mysql_error )
BifEvent::generate_mysql_error(connection()->bro_analyzer(),
connection()->bro_analyzer()->Conn(),
${msg.code},
bytestring_to_val(${msg.msg}));
return true;
%}
function proc_ok_packet(msg: OK_Packet): bool
%{
if ( mysql_ok )
BifEvent::generate_mysql_ok(connection()->bro_analyzer(),
connection()->bro_analyzer()->Conn(),
${msg.rows});
return true;
%}
function proc_resultset(msg: Resultset): bool
%{
if ( mysql_ok )
BifEvent::generate_mysql_ok(connection()->bro_analyzer(),
connection()->bro_analyzer()->Conn(),
${msg.rows}->size());
return true;
%}
};
refine typeattr Initial_Handshake_Packet += &let {
proc = $context.flow.proc_mysql_initial_handshake_packet(this);
};
refine typeattr Handshake_Response_Packet += &let {
proc = $context.flow.proc_mysql_handshake_response_packet(this);
};
refine typeattr Command_Request_Packet += &let {
proc = $context.flow.proc_mysql_command_request_packet(this);
};
refine typeattr ERR_Packet += &let {
proc = $context.flow.proc_err_packet(this);
};
refine typeattr OK_Packet += &let {
proc = $context.flow.proc_ok_packet(this);
};
refine typeattr Resultset += &let {
proc = $context.flow.proc_resultset(this);
};

407
src/analyzer/protocol/mysql/mysql-protocol.pac Normal file
View file

@ -0,0 +1,407 @@
# See the file "COPYING" in the main distribution directory for copyright.
#
# All information is from the MySQL internals documentation at:
# <http://dev.mysql.com/doc/internals/en/client-server-protocol.html>
#
# Basic Types
type uint24le = record {
byte3 : uint8;
byte2 : uint8;
byte1 : uint8;
};
type LengthEncodedInteger = record {
length : uint8;
integer : LengthEncodedIntegerLookahead(length);
};
type LengthEncodedIntegerLookahead(length: uint8) = record {
val: case length of {
0xfb -> i0 : empty;
0xfc -> i2 : uint16;
0xfd -> i3 : uint24le;
0xfe -> i4 : uint64;
0xff -> err_packet: empty;
default -> one : empty;
};
};
type LengthEncodedString = record {
len: LengthEncodedInteger;
val: bytestring &length=to_int()(len);
};
%header{
class to_int
{
public:
int operator()(uint24le* num) const
{
return (num->byte1() << 16) | (num->byte2() << 8) | num->byte3();
}
int operator()(LengthEncodedInteger* lei) const
{
if ( lei->length() < 0xfb )
return lei->length();
else if ( lei->length() == 0xfc )
return lei->integer()->i2();
else if ( lei->length() == 0xfd )
return to_int()(lei->integer()->i3());
else if ( lei->length() == 0xfe )
return lei->integer()->i4();
else
return 0;
}
int operator()(LengthEncodedIntegerLookahead* lei) const
{
if ( lei->length() < 0xfb )
return lei->length();
else if ( lei->length() == 0xfc )
return lei->i2();
else if ( lei->length() == 0xfd )
return to_int()(lei->i3());
else if ( lei->length() == 0xfe )
return lei->i4();
else
return 0;
}
};
%}
extern type to_int;
# Enums
enum command_consts {
COM_SLEEP = 0x00,
COM_QUIT = 0x01,
COM_INIT_DB = 0x02,
COM_QUERY = 0x03,
COM_FIELD_LIST = 0x04,
COM_CREATE_DB = 0x05,
COM_DROP_DB = 0x06,
COM_REFRESH = 0x07,
COM_SHUTDOWN = 0x08,
COM_STATISTICS = 0x09,
COM_PROCESS_INFO = 0x0a,
COM_CONNECT = 0x0b,
COM_PROCESS_KILL = 0x0c,
COM_DEBUG = 0x0d,
COM_PING = 0x0e,
COM_TIME = 0x0f,
COM_DELAYED_INSERT = 0x10,
COM_CHANGE_USER = 0x11,
COM_BINLOG_DUMP = 0x12,
COM_TABLE_DUMP = 0x13,
COM_CONNECT_OUT = 0x14,
COM_REGISTER_SLAVE = 0x15,
COM_STMT_PREPARE = 0x16,
COM_STMT_EXECUTE = 0x17,
COM_STMT_SEND_LONG_DATA = 0x18,
COM_STMT_CLOSE = 0x19,
COM_STMT_RESET = 0x1a,
COM_SET_OPTION = 0x1b,
COM_STMT_FETCH = 0x1c,
COM_DAEMON = 0x1d,
COM_BINLOG_DUMP_GTID = 0x1e
};
enum state {
CONNECTION_PHASE = 0,
COMMAND_PHASE = 1,
};
enum Expected {
NO_EXPECTATION,
EXPECT_STATUS,
EXPECT_COLUMN_DEFINITION,
EXPECT_COLUMN_COUNT,
EXPECT_EOF1,
EXPECT_EOF2,
EXPECT_RESULTSET,
EXPECT_QUERY_RESPONSE,
};
type NUL_String = RE/[^\0]*/;
# MySQL PDU
type MySQL_PDU(is_orig: bool) = record {
hdr : Header;
msg : case is_orig of {
false -> server_msg: Server_Message(hdr.seq_id);
true -> client_msg: Client_Message(state);
} &requires(state);
} &let {
state : int = $context.connection.get_state();
} &length=hdr.len &byteorder=bigendian;
type Header = record {
le_len: uint24le;
seq_id: uint8;
} &let {
len : uint32 = to_int()(le_len) + 4;
} &length=4;
type Server_Message(seq_id: uint8) = case seq_id of {
0 -> initial_handshake: Initial_Handshake_Packet;
default -> command_response : Command_Response;
};
type Client_Message(state: int) = case state of {
CONNECTION_PHASE -> connection_phase: Handshake_Response_Packet;
COMMAND_PHASE -> command_phase : Command_Request_Packet;
};
# Handshake Request
type Initial_Handshake_Packet = record {
version : uint8;
pkt : case version of {
10 -> handshake10 : Handshake_v10;
9 -> handshake9 : Handshake_v9;
default -> error : ERR_Packet;
};
} &let {
set_version : bool = $context.connection.set_version(version);
};
type Handshake_v10 = record {
server_version : NUL_String;
connection_id : uint32;
auth_plugin_data_part_1 : bytestring &length=8;
filler_1 : uint8;
capability_flag_1 : uint16;
character_set : uint8;
status_flags : uint16;
capability_flags_2 : uint16;
auth_plugin_data_len : uint8;
auth_plugin_name : NUL_String;
};
type Handshake_v9 = record {
server_version : NUL_String;
connection_id : uint32;
scramble : NUL_String;
};
# Handshake Response
type Handshake_Response_Packet = case $context.connection.get_version() of {
10 -> v10_response : Handshake_Response_Packet_v10;
9 -> v9_response : Handshake_Response_Packet_v9;
} &let {
version : uint8 = $context.connection.get_version();
} &byteorder=bigendian;
type Handshake_Response_Packet_v10 = record {
cap_flags : uint32;
max_pkt_size : uint32;
char_set : uint8;
pad : padding[23];
username : NUL_String;
password : bytestring &restofdata;
};
type Handshake_Response_Packet_v9 = record {
cap_flags : uint16;
max_pkt_size : uint24le;
username : NUL_String;
auth_response : NUL_String;
have_db : case ( cap_flags & 0x8 ) of {
0x8 -> database : NUL_String;
0x0 -> none : empty;
};
password : bytestring &restofdata;
};
# Command Request
type Command_Request_Packet = record {
command : uint8;
arg : bytestring &restofdata;
} &let {
update_expectation : bool = $context.connection.set_next_expected(EXPECT_COLUMN_COUNT);
};
# Command Response
type Command_Response = case $context.connection.get_expectation() of {
EXPECT_COLUMN_COUNT -> col_count_meta : ColumnCountMeta;
EXPECT_COLUMN_DEFINITION -> col_defs : ColumnDefinitions;
EXPECT_RESULTSET -> resultset : Resultset;
EXPECT_STATUS -> status : Command_Response_Status;
EXPECT_EOF1 -> eof1 : EOF1;
EXPECT_EOF2 -> eof2 : EOF2;
default -> unknow : empty;
};
type Command_Response_Status = record {
pkt_type: uint8;
response: case pkt_type of {
0x00 -> data_ok: OK_Packet;
0xfe -> data_eof: EOF_Packet;
0xff -> data_err: ERR_Packet;
default -> unknown: empty;
};
};
type ColumnCountMeta = record {
byte : uint8;
pkt_type: case byte of {
0x00 -> ok : OK_Packet;
0xff -> err : ERR_Packet;
# 0xfb -> Not implemented
default -> col_count: ColumnCount(byte);
};
};
type ColumnCount(byte: uint8) = record {
le_column_count : LengthEncodedIntegerLookahead(byte);
} &let {
col_num : uint32 = to_int()(le_column_count);
update_col_num : bool = $context.connection.set_col_count(col_num);
update_expectation : bool = $context.connection.set_next_expected(EXPECT_COLUMN_DEFINITION);
};
type ColumnDefinitions = record {
defs : ColumnDefinition41[1];
} &let {
update_expectation : bool = $context.connection.set_next_expected(EXPECT_EOF1);
};
type EOF1 = record {
eof : EOF_Packet;
} &let {
update_expectation : bool = $context.connection.set_next_expected(EXPECT_RESULTSET);
};
type EOF2 = record {
eof : EOF_Packet;
} &let {
update_expectation : bool = $context.connection.set_next_expected(NO_EXPECTATION);
};
type Resultset = record {
rows : ResultsetRow[] &until($input.length()==0);
} &let {
update_expectation : bool = $context.connection.set_next_expected(EXPECT_EOF2);
};
type ResultsetRow = record {
fields: LengthEncodedString[$context.connection.get_col_count()];
};
type ColumnDefinition41 = record {
catalog : LengthEncodedString;
schema : LengthEncodedString;
table : LengthEncodedString;
org_table: LengthEncodedString;
name : LengthEncodedString;
org_name : LengthEncodedString;
next_len : LengthEncodedInteger;
char_set : uint16;
col_len : uint32;
type : uint8;
flags : uint16;
decimals : uint8;
filler : padding[2];
};
type ColumnDefinition320 = record {
table : LengthEncodedString;
name : LengthEncodedString;
length_of_col_len: LengthEncodedInteger;
col_len : uint24le;
type_len : LengthEncodedInteger;
type : uint8;
};
type OK_Packet = record {
le_rows : LengthEncodedInteger;
todo : bytestring &restofdata;
} &let {
rows : uint32 = to_int()(le_rows);
update_state: bool = $context.connection.update_state(COMMAND_PHASE);
};
type ERR_Packet = record {
code : uint16;
state: bytestring &length=6;
msg : bytestring &restofdata;
} &let {
update_state: bool = $context.connection.update_state(COMMAND_PHASE);
};
type EOF_Packet = record {
warnings: uint16;
status : uint16;
} &let {
update_state: bool = $context.connection.update_state(COMMAND_PHASE);
};
# State tracking
refine connection MySQL_Conn += {
%member{
uint8 version_;
int state_;
Expected expected_;
uint32 col_count_;
%}
%init{
version_ = 0;
state_ = CONNECTION_PHASE;
expected_ = EXPECT_STATUS;
col_count_ = 0;
%}
function get_version(): uint8
%{
return version_;
%}
function set_version(v: uint8): bool
%{
version_ = v;
return true;
%}
function get_state(): int
%{
return state_;
%}
function update_state(s: state): bool
%{
state_ = s;
return true;
%}
function get_expectation(): Expected
%{
return expected_;
%}
function set_next_expected(e: Expected): bool
%{
expected_ = e;
return true;
%}
function get_col_count(): uint32
%{
return col_count_;
%}
function set_col_count(i: uint32): bool
%{
col_count_ = i;
return true;
%}
};

37
src/analyzer/protocol/mysql/mysql.pac Normal file
View file

@ -0,0 +1,37 @@
# See the file "COPYING" in the main distribution directory for copyright.
#
# Analyzer for MySQL
# - mysql-protocol.pac: describes the MySQL protocol messages
# - mysql-analyzer.pac: describes the MySQL analyzer code
%include binpac.pac
%include bro.pac
%extern{
#include "events.bif.h"
%}
analyzer MySQL withcontext {
connection: MySQL_Conn;
flow: MySQL_Flow;
};
# Our connection consists of two flows, one in each direction.
connection MySQL_Conn(bro_analyzer: BroAnalyzer) {
upflow = MySQL_Flow(true);
downflow = MySQL_Flow(false);
};
%include mysql-protocol.pac
# Now we define the flow:
flow MySQL_Flow(is_orig: bool) {
# There are two options here: flowunit or datagram.
# flowunit = MySQL_PDU(is_orig) withcontext(connection, this);
flowunit = MySQL_PDU(is_orig) withcontext(connection, this);
# Using flowunit will cause the anlayzer to buffer incremental input.
# This is needed for &oneline and &length. If you don't need this, you'll
# get better performance with datagram.
};
%include mysql-analyzer.pac

13
src/analyzer/protocol/pia/PIA.cc
View file

@ -22,6 +22,7 @@ void PIA::ClearBuffer(Buffer* buffer)
for ( DataBlock* b = buffer->head; b; b = next )
{
next = b->next;
delete b->ip;
delete [] b->data;
delete b;
}
@ -31,7 +32,7 @@ void PIA::ClearBuffer(Buffer* buffer)
}
void PIA::AddToBuffer(Buffer* buffer, uint64 seq, int len, const u_char* data,
bool is_orig)
bool is_orig, const IP_Hdr* ip)
{
u_char* tmp = 0;
@ -42,6 +43,7 @@ void PIA::AddToBuffer(Buffer* buffer, uint64 seq, int len, const u_char* data,
}
DataBlock* b = new DataBlock;
b->ip = ip ? ip->Copy() : 0;
b->data = tmp;
b->is_orig = is_orig;
b->len = len;
@ -59,9 +61,10 @@ void PIA::AddToBuffer(Buffer* buffer, uint64 seq, int len, const u_char* data,
buffer->size += len;
}
void PIA::AddToBuffer(Buffer* buffer, int len, const u_char* data, bool is_orig)
void PIA::AddToBuffer(Buffer* buffer, int len, const u_char* data, bool is_orig,
const IP_Hdr* ip)
{
AddToBuffer(buffer, -1, len, data, is_orig);
AddToBuffer(buffer, -1, len, data, is_orig, ip);
}
void PIA::ReplayPacketBuffer(analyzer::Analyzer* analyzer)
@ -69,7 +72,7 @@ void PIA::ReplayPacketBuffer(analyzer::Analyzer* analyzer)
DBG_LOG(DBG_ANALYZER, "PIA replaying %d total packet bytes", pkt_buffer.size);
for ( DataBlock* b = pkt_buffer.head; b; b = b->next )
analyzer->DeliverPacket(b->len, b->data, b->is_orig, -1, 0, 0);
analyzer->DeliverPacket(b->len, b->data, b->is_orig, -1, b->ip, 0);
}
void PIA::PIA_Done()
@ -96,7 +99,7 @@ void PIA::PIA_DeliverPacket(int len, const u_char* data, bool is_orig, uint64 se
if ( (pkt_buffer.state == BUFFERING || new_state == BUFFERING) &&
len > 0 )
{
AddToBuffer(&pkt_buffer, seq, len, data, is_orig);
AddToBuffer(&pkt_buffer, seq, len, data, is_orig, ip);
if ( pkt_buffer.size > dpd_buffer_size )
new_state = dpd_match_only_beginning ?
SKIPPING : MATCHING_ONLY;

5
src/analyzer/protocol/pia/PIA.h
View file

@ -49,6 +49,7 @@ protected:
// Buffers one chunk of data. Used both for packet payload (incl.
// sequence numbers for TCP) and chunks of a reassembled stream.
struct DataBlock {
IP_Hdr* ip;
const u_char* data;
bool is_orig;
int len;
@ -66,9 +67,9 @@ protected:
};
void AddToBuffer(Buffer* buffer, uint64 seq, int len,
const u_char* data, bool is_orig);
const u_char* data, bool is_orig, const IP_Hdr* ip = 0);
void AddToBuffer(Buffer* buffer, int len,
const u_char* data, bool is_orig);
const u_char* data, bool is_orig, const IP_Hdr* ip = 0);
void ClearBuffer(Buffer* buffer);
DataBlock* CurrentPacket() { return &current_packet; }

6
src/analyzer/protocol/ssl/SSL.h
View file

@ -24,12 +24,6 @@ public:
static analyzer::Analyzer* Instantiate(Connection* conn)
{ return new SSL_Analyzer(conn); }
static bool Available()
{
return ( ssl_client_hello || ssl_server_hello ||
ssl_established || ssl_extension || ssl_alert );
}
protected:
binpac::SSL::SSL_Conn* interp;
bool had_gap;

19
src/analyzer/protocol/ssl/ssl-analyzer.pac
View file

@ -112,7 +112,10 @@ refine connection SSL_Conn += {
cipher_suites24 : uint24[]) : bool
%{
if ( ! version_ok(version) )
{
bro_analyzer()->ProtocolViolation(fmt("unsupported client SSL version 0x%04x", version));
bro_analyzer()->SetSkip(true);
}
else
bro_analyzer()->ProtocolConfirmation();
@ -152,7 +155,10 @@ refine connection SSL_Conn += {
comp_method : uint8) : bool
%{
if ( ! version_ok(version) )
{
bro_analyzer()->ProtocolViolation(fmt("unsupported server SSL version 0x%04x", version));
bro_analyzer()->SetSkip(true);
}
if ( ssl_server_hello )
{
@ -202,6 +208,7 @@ refine connection SSL_Conn += {
// This should be impossible due to the binpac parser
// and protocol description
bro_analyzer()->ProtocolViolation(fmt("Impossible extension length: %lu", length));
bro_analyzer()->SetSkip(true);
return true;
}
@ -392,7 +399,11 @@ refine connection SSL_Conn += {
function proc_check_v2_server_hello_version(version: uint16) : bool
%{
if ( version != SSLv20 )
{
bro_analyzer()->ProtocolViolation(fmt("Invalid version in SSL server hello. Version: %d", version));
bro_analyzer()->SetSkip(true);
return false;
}
return true;
%}
@ -479,13 +490,13 @@ refine typeattr ServerHello += &let {
};
refine typeattr V2ServerHello += &let {
proc : bool = $context.connection.proc_server_hello(rec, server_version, 0,
conn_id_data, 0, 0, ciphers, 0);
check_v2 : bool = $context.connection.proc_check_v2_server_hello_version(server_version);
proc : bool = $context.connection.proc_server_hello(rec, server_version, 0,
conn_id_data, 0, 0, ciphers, 0) &requires(check_v2) &if(check_v2 == true);
cert : bool = $context.connection.proc_v2_certificate(rec, cert_data)
&requires(proc);
&requires(proc) &requires(check_v2) &if(check_v2 == true);
};
refine typeattr Certificate += &let {

13
src/analyzer/protocol/ssl/ssl-protocol.pac
View file

@ -36,7 +36,7 @@ type SSLRecord(is_orig: bool) = record {
} &length = length+5, &byteorder=bigendian,
&let {
version : int =
$context.connection.determine_ssl_record_layer(head0, head1, head2, head3, head4);
$context.connection.determine_ssl_record_layer(head0, head1, head2, head3, head4, is_orig);
content_type : int = case version of {
SSLv20 -> head2+300;
@ -748,7 +748,7 @@ refine connection SSL_Conn += {
%}
function determine_ssl_record_layer(head0 : uint8, head1 : uint8,
head2 : uint8, head3: uint8, head4: uint8) : int
head2 : uint8, head3: uint8, head4: uint8, is_orig: bool) : int
%{
// re-check record layer version to be sure that we still are synchronized with
// the data stream
@ -759,6 +759,7 @@ refine connection SSL_Conn += {
version != TLSv11 && version != TLSv12 )
{
bro_analyzer()->ProtocolViolation(fmt("Invalid version late in TLS connection. Packet reported version: %d", version));
bro_analyzer()->SetSkip(true);
return UNKNOWN_VERSION;
}
}
@ -768,13 +769,14 @@ refine connection SSL_Conn += {
if ( head0 & 0x80 )
{
if ( head2 == 0x01 ) // SSLv2 client hello.
if ( head2 == 0x01 && is_orig ) // SSLv2 client hello.
{
uint16 version = (head3 << 8) | head4;
if ( version != SSLv20 && version != SSLv30 && version != TLSv10 &&
version != TLSv11 && version != TLSv12 )
{
bro_analyzer()->ProtocolViolation(fmt("Invalid version in SSL client hello. Version: %d", version));
bro_analyzer()->SetSkip(true);
return UNKNOWN_VERSION;
}
@ -782,7 +784,7 @@ refine connection SSL_Conn += {
return SSLv20;
}
else if ( head2 == 0x04 ) // SSLv2 server hello. This connection will continue using SSLv2.
else if ( head2 == 0x04 && head4 < 2 && ! is_orig ) // SSLv2 server hello. This connection will continue using SSLv2.
{
record_layer_version_ = SSLv20;
return SSLv20;
@ -791,6 +793,7 @@ refine connection SSL_Conn += {
else // this is not SSL or TLS.
{
bro_analyzer()->ProtocolViolation(fmt("Invalid headers in SSL connection. Head1: %d, head2: %d, head3: %d", head1, head2, head3));
bro_analyzer()->SetSkip(true);
return UNKNOWN_VERSION;
}
}
@ -800,6 +803,7 @@ refine connection SSL_Conn += {
version != TLSv11 && version != TLSv12 )
{
bro_analyzer()->ProtocolViolation(fmt("Invalid version in TLS connection. Version: %d", version));
bro_analyzer()->SetSkip(true);
return UNKNOWN_VERSION;
}
@ -810,6 +814,7 @@ refine connection SSL_Conn += {
}
bro_analyzer()->ProtocolViolation(fmt("Invalid type in TLS connection. Version: %d, Type: %d", version, head0));
bro_analyzer()->SetSkip(true);
return UNKNOWN_VERSION;
%}

2
src/analyzer/protocol/tcp/TCP_Reassembler.cc
View file

@ -28,7 +28,7 @@ TCP_Reassembler::TCP_Reassembler(analyzer::Analyzer* arg_dst_analyzer,
TCP_Analyzer* arg_tcp_analyzer,
TCP_Reassembler::Type arg_type,
TCP_Endpoint* arg_endp)
: Reassembler(1, REASSEM_TCP)
: Reassembler(1)
{
dst_analyzer = arg_dst_analyzer;
tcp_analyzer = arg_tcp_analyzer;

3
src/analyzer/protocol/tcp/TCP_Reassembler.h
View file

@ -11,9 +11,6 @@ namespace analyzer { namespace tcp {
class TCP_Analyzer;
const int STOP_ON_GAP = 1;
const int PUNT_ON_PARTIAL = 1;
class TCP_Reassembler : public Reassembler {
public:
enum Type {

6
src/analyzer/protocol/tcp/events.bif
View file

@ -29,8 +29,10 @@ event new_connection_contents%(c: connection%);
## new_connection new_connection_contents partial_connection
event connection_attempt%(c: connection%);
## Generated when a SYN-ACK packet is seen in response to a SYN packet during
## a TCP handshake. The final ACK of the handshake in response to SYN-ACK may
## Generated when seeing a SYN-ACK packet from the responder in a TCP
## handshake. An associated SYN packet was not seen from the originator
## side if its state is not set to :bro:see:`TCP_ESTABLISHED`.
## The final ACK of the handshake in response to SYN-ACK may
## or may not occur later, one way to tell is to check the *history* field of
## :bro:type:`connection` to see if the originator sent an ACK, indicated by
## 'A' in the history string.

20
src/bro.bif
View file

@ -2,8 +2,8 @@
##! such as general programming algorithms, string processing, math functions,
##! introspection, type conversion, file/directory manipulation, packet
##! filtering, interprocess communication and controlling protocol analyzer
##! behavior.
##!
##! behavior.
##!
##! You'll find most of Bro's built-in functions that aren't protocol-specific
##! in this file.
@ -2159,6 +2159,22 @@ function counts_to_addr%(v: index_vec%): addr
}
%}
## Converts an :bro:type:`enum` to an :bro:type:`int`.
##
## e: The :bro:type:`enum` to convert.
##
## Returns: The :bro:type:`int` value that corresponds to the :bro:type:`enum`.
function enum_to_int%(e: any%): int
%{
if ( e->Type()->Tag() != TYPE_ENUM )
{
builtin_error("enum_to_int() requires enum value");
return new Val(-1, TYPE_INT);
}
return new Val(e->AsEnum(), TYPE_INT);
%}
## Converts a :bro:type:`string` to an :bro:type:`int`.
##
## str: The :bro:type:`string` to convert.

3
src/builtin-func.l
View file

@ -1,4 +1,5 @@
%{
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include "bif_arg.h"
@ -223,7 +224,7 @@ void init_alternative_mode()
for ( char* p = guard; *p; p++ )
{
if ( strchr("/.-", *p) )
if ( ! isalnum(*p) )
*p = '_';
}

54
src/event.bif
View file

@ -905,7 +905,8 @@ event get_file_handle%(tag: Analyzer::Tag, c: connection, is_orig: bool%);
##
## f: The file.
##
## .. bro:see:: file_over_new_connection file_timeout file_gap file_state_remove
## .. bro:see:: file_over_new_connection file_timeout file_gap file_mime_type
## file_state_remove
event file_new%(f: fa_file%);
## Indicates that a file has been seen being transferred over a connection
@ -917,16 +918,39 @@ event file_new%(f: fa_file%);
##
## is_orig: true if the originator of *c* is the one sending the file.
##
## .. bro:see:: file_new file_timeout file_gap file_state_remove
## .. bro:see:: file_new file_timeout file_gap file_mime_type
## file_state_remove
event file_over_new_connection%(f: fa_file, c: connection, is_orig: bool%);
## Provide the most likely matching MIME type for this file. The analysis
## can be augmented at this time via :bro:see:`Files::add_analyzer`.
##
## f: The file.
##
## mime_type: The mime type that was discovered.
##
## .. bro:see:: file_over_new_connection file_timeout file_gap file_mime_type
## file_mime_types file_state_remove
event file_mime_type%(f: fa_file, mime_type: string%);
## Provide all matching MIME types for this file. The analysis can be
## augmented at this time via :bro:see:`Files::add_analyzer`.
##
## f: The file.
##
## mime_types: The mime types that were discovered.
##
## .. bro:see:: file_over_new_connection file_timeout file_gap file_mime_type
## file_mime_types file_state_remove
event file_mime_types%(f: fa_file, mime_types: mime_matches%);
## Indicates that file analysis has timed out because no activity was seen
## for the file in a while.
##
## f: The file.
##
## .. bro:see:: file_new file_over_new_connection file_gap file_state_remove
## default_file_timeout_interval Files::set_timeout_interval
## .. bro:see:: file_new file_over_new_connection file_gap file_mime_type
## file_mime_types file_state_remove default_file_timeout_interval
## Files::set_timeout_interval
event file_timeout%(f: fa_file%);
@ -938,14 +962,34 @@ event file_timeout%(f: fa_file%);
##
## len: The number of missing bytes.
##
## .. bro:see:: file_new file_over_new_connection file_timeout file_state_remove
## .. bro:see:: file_new file_over_new_connection file_timeout file_mime_type
## file_mime_types file_state_remove file_reassembly_overflow
event file_gap%(f: fa_file, offset: count, len: count%);
## Indicates that the file had an overflow of the reassembly buffer.
## This is a specialization of the :bro:id:`file_gap` event.
##
## f: The file.
##
## offset: The byte offset from the start of the file at which the reassembly
## couldn't continue due to running out of reassembly buffer space.
##
## skipped: The number of bytes of the file skipped over to flush some
## file data and get back under the reassembly buffer size limit.
## This value will also be represented as a gap.
##
## .. bro:see:: file_new file_over_new_connection file_timeout file_mime_type
## file_mime_types file_state_remove file_gap Files::enable_reassembler
## Files::reassembly_buffer_size Files::enable_reassembly
## Files::disable_reassembly Files::set_reassembly_buffer_size
event file_reassembly_overflow%(f: fa_file, offset: count, skipped: count%);
## This event is generated each time file analysis is ending for a given file.
##
## f: The file.
##
## .. bro:see:: file_new file_over_new_connection file_timeout file_gap
## file_mime_type file_mime_types
event file_state_remove%(f: fa_file%);
## Generated when an internal DNS lookup produces the same result as last time.

19
src/file_analysis/Analyzer.h
View file

@ -111,6 +111,18 @@ public:
*/
void SetAnalyzerTag(const file_analysis::Tag& tag);
/**
* @return true if the analyzer has ever seen a stream-wise delivery.
*/
bool GotStreamDelivery() const
{ return got_stream_delivery; }
/**
* Flag the analyzer as having seen a stream-wise delivery.
*/
void SetGotStreamDelivery()
{ got_stream_delivery = true; }
protected:
/**
@ -123,7 +135,8 @@ protected:
Analyzer(file_analysis::Tag arg_tag, RecordVal* arg_args, File* arg_file)
: tag(arg_tag),
args(arg_args->Ref()->AsRecordVal()),
file(arg_file)
file(arg_file),
got_stream_delivery(false)
{
id = ++id_counter;
}
@ -140,7 +153,8 @@ protected:
Analyzer(RecordVal* arg_args, File* arg_file)
: tag(),
args(arg_args->Ref()->AsRecordVal()),
file(arg_file)
file(arg_file),
got_stream_delivery(false)
{
id = ++id_counter;
}
@ -151,6 +165,7 @@ private:
file_analysis::Tag tag; /**< The particular type of the analyzer instance. */
RecordVal* args; /**< \c AnalyzerArgs val gives tunable analyzer params. */
File* file; /**< The file to which the analyzer is attached. */
bool got_stream_delivery;
static ID id_counter;
};

6
src/file_analysis/AnalyzerSet.cc
View file

@ -72,7 +72,7 @@ bool AnalyzerSet::Add(file_analysis::Tag tag, RecordVal* args)
return true;
}
bool AnalyzerSet::QueueAdd(file_analysis::Tag tag, RecordVal* args)
Analyzer* AnalyzerSet::QueueAdd(file_analysis::Tag tag, RecordVal* args)
{
HashKey* key = GetKey(tag, args);
file_analysis::Analyzer* a = InstantiateAnalyzer(tag, args);
@ -80,12 +80,12 @@ bool AnalyzerSet::QueueAdd(file_analysis::Tag tag, RecordVal* args)
if ( ! a )
{
delete key;
return false;
return 0;
}
mod_queue.push(new AddMod(a, key));
return true;
return a;
}
bool AnalyzerSet::AddMod::Perform(AnalyzerSet* set)

5
src/file_analysis/AnalyzerSet.h
View file

@ -57,9 +57,10 @@ public:
* Queue the attachment of an analyzer to #file.
* @param tag the analyzer tag of the file analyzer to add.
* @param args an \c AnalyzerArgs value which specifies an analyzer.
* @return true if analyzer was able to be instantiated, else false.
* @return if successful, a pointer to a newly instantiated analyzer else
* a null pointer. The caller does *not* take ownership of the memory.
*/
bool QueueAdd(file_analysis::Tag tag, RecordVal* args);
file_analysis::Analyzer* QueueAdd(file_analysis::Tag tag, RecordVal* args);
/**
* Remove an analyzer from #file immediately.

1
src/file_analysis/CMakeLists.txt
View file

@ -11,6 +11,7 @@ set(file_analysis_SRCS
Manager.cc
File.cc
FileTimer.cc
FileReassembler.cc
Analyzer.cc
AnalyzerSet.cc
Component.cc

402
src/file_analysis/File.cc
View file

@ -53,8 +53,6 @@ int File::overflow_bytes_idx = -1;
int File::timeout_interval_idx = -1;
int File::bof_buffer_size_idx = -1;
int File::bof_buffer_idx = -1;
int File::mime_type_idx = -1;
int File::mime_types_idx = -1;
void File::StaticInit()
{
@ -74,15 +72,14 @@ void File::StaticInit()
timeout_interval_idx = Idx("timeout_interval");
bof_buffer_size_idx = Idx("bof_buffer_size");
bof_buffer_idx = Idx("bof_buffer");
mime_type_idx = Idx("mime_type");
mime_types_idx = Idx("mime_types");
}
File::File(const string& file_id, Connection* conn, analyzer::Tag tag,
bool is_orig)
: id(file_id), val(0), postpone_timeout(false), first_chunk(true),
missed_bof(false), need_reassembly(false), done(false),
did_file_new_event(false), analyzers(this)
File::File(const string& file_id, const string& source_name, Connection* conn,
analyzer::Tag tag, bool is_orig)
: id(file_id), val(0), file_reassembler(0), stream_offset(0),
reassembly_max_buffer(0), did_mime_type(false),
reassembly_enabled(false), postpone_timeout(false), done(false),
analyzers(this)
{
StaticInit();
@ -90,11 +87,10 @@ File::File(const string& file_id, Connection* conn, analyzer::Tag tag,
val = new RecordVal(fa_file_type);
val->Assign(id_idx, new StringVal(file_id.c_str()));
SetSource(source_name);
if ( conn )
{
// add source, connection, is_orig fields
SetSource(analyzer_mgr->GetComponentName(tag));
val->Assign(is_orig_idx, new Val(is_orig, TYPE_BOOL));
UpdateConnectionFields(conn, is_orig);
}
@ -106,12 +102,7 @@ File::~File()
{
DBG_LOG(DBG_FILE_ANALYSIS, "[%s] Destroying File object", id.c_str());
Unref(val);
while ( ! fonc_queue.empty() )
{
delete_vals(fonc_queue.front().second);
fonc_queue.pop();
}
delete file_reassembler;
}
void File::UpdateLastActivityTime()
@ -124,10 +115,10 @@ double File::GetLastActivityTime() const
return val->Lookup(last_active_idx)->AsTime();
}
void File::UpdateConnectionFields(Connection* conn, bool is_orig)
bool File::UpdateConnectionFields(Connection* conn, bool is_orig)
{
if ( ! conn )
return;
return false;
Val* conns = val->Lookup(conns_idx);
@ -138,27 +129,28 @@ void File::UpdateConnectionFields(Connection* conn, bool is_orig)
}
Val* idx = get_conn_id_val(conn);
if ( ! conns->AsTableVal()->Lookup(idx) )
if ( conns->AsTableVal()->Lookup(idx) )
{
Val* conn_val = conn->BuildConnVal();
conns->AsTableVal()->Assign(idx, conn_val);
if ( FileEventAvailable(file_over_new_connection) )
{
val_list* vl = new val_list();
vl->append(val->Ref());
vl->append(conn_val->Ref());
vl->append(new Val(is_orig, TYPE_BOOL));
if ( did_file_new_event )
FileEvent(file_over_new_connection, vl);
else
fonc_queue.push(pair<EventHandlerPtr, val_list*>(
file_over_new_connection, vl));
}
Unref(idx);
return false;
}
conns->AsTableVal()->Assign(idx, conn->BuildConnVal());
Unref(idx);
return true;
}
void File::RaiseFileOverNewConnection(Connection* conn, bool is_orig)
{
if ( conn && FileEventAvailable(file_over_new_connection) )
{
val_list* vl = new val_list();
vl->append(val->Ref());
vl->append(conn->BuildConnVal());
vl->append(new Val(is_orig, TYPE_BOOL));
FileEvent(file_over_new_connection, vl);
}
}
uint64 File::LookupFieldDefaultCount(int idx) const
@ -242,7 +234,7 @@ bool File::IsComplete() const
if ( ! total )
return false;
if ( LookupFieldDefaultCount(seen_bytes_idx) >= total->AsCount() )
if ( stream_offset >= total->AsCount() )
return true;
return false;
@ -258,7 +250,10 @@ bool File::AddAnalyzer(file_analysis::Tag tag, RecordVal* args)
DBG_LOG(DBG_FILE_ANALYSIS, "[%s] Queuing addition of %s analyzer",
id.c_str(), file_mgr->GetComponentName(tag).c_str());
return done ? false : analyzers.QueueAdd(tag, args);
if ( done )
return false;
return analyzers.QueueAdd(tag, args) != 0;
}
bool File::RemoveAnalyzer(file_analysis::Tag tag, RecordVal* args)
@ -269,9 +264,70 @@ bool File::RemoveAnalyzer(file_analysis::Tag tag, RecordVal* args)
return done ? false : analyzers.QueueRemove(tag, args);
}
void File::EnableReassembly()
{
reassembly_enabled = true;
}
void File::DisableReassembly()
{
reassembly_enabled = false;
delete file_reassembler;
file_reassembler = 0;
}
void File::SetReassemblyBuffer(uint64 max)
{
reassembly_max_buffer = max;
}
bool File::DetectMIME()
{
did_mime_type = true;
Val* bof_buffer_val = val->Lookup(bof_buffer_idx);
if ( ! bof_buffer_val )
{
if ( bof_buffer.size == 0 )
return false;
BroString* bs = concatenate(bof_buffer.chunks);
bof_buffer_val = new StringVal(bs);
val->Assign(bof_buffer_idx, bof_buffer_val);
}
RuleMatcher::MIME_Matches matches;
const u_char* data = bof_buffer_val->AsString()->Bytes();
uint64 len = bof_buffer_val->AsString()->Len();
len = min(len, LookupFieldDefaultCount(bof_buffer_size_idx));
file_mgr->DetectMIME(data, len, &matches);
if ( matches.empty() )
return false;
if ( FileEventAvailable(file_mime_type) )
{
val_list* vl = new val_list();
vl->append(val->Ref());
vl->append(new StringVal(*(matches.begin()->second.begin())));
FileEvent(file_mime_type, vl);
}
if ( FileEventAvailable(file_mime_types) )
{
val_list* vl = new val_list();
vl->append(val->Ref());
vl->append(file_analysis::GenMIMEMatchesVal(matches));
FileEvent(file_mime_types, vl);
}
return true;
}
bool File::BufferBOF(const u_char* data, uint64 len)
{
if ( bof_buffer.full || bof_buffer.replayed )
if ( bof_buffer.full )
return false;
uint64 desired_size = LookupFieldDefaultCount(bof_buffer_size_idx);
@ -279,131 +335,154 @@ bool File::BufferBOF(const u_char* data, uint64 len)
bof_buffer.chunks.push_back(new BroString(data, len, 0));
bof_buffer.size += len;
if ( bof_buffer.size >= desired_size )
if ( bof_buffer.size < desired_size )
return true;
bof_buffer.full = true;
if ( bof_buffer.size > 0 )
{
bof_buffer.full = true;
ReplayBOF();
BroString* bs = concatenate(bof_buffer.chunks);
val->Assign(bof_buffer_idx, new StringVal(bs));
}
return true;
return false;
}
bool File::DetectMIME(const u_char* data, uint64 len)
void File::DeliverStream(const u_char* data, uint64 len)
{
RuleMatcher::MIME_Matches matches;
len = min(len, LookupFieldDefaultCount(bof_buffer_size_idx));
file_mgr->DetectMIME(data, len, &matches);
bool bof_was_full = bof_buffer.full;
// Buffer enough data for the BOF buffer
BufferBOF(data, len);
if ( matches.empty() )
return false;
if ( ! did_mime_type && bof_buffer.full &&
LookupFieldDefaultCount(missing_bytes_idx) == 0 )
DetectMIME();
val->Assign(mime_type_idx,
new StringVal(*(matches.begin()->second.begin())));
val->Assign(mime_types_idx, file_analysis::GenMIMEMatchesVal(matches));
DBG_LOG(DBG_FILE_ANALYSIS,
"[%s] %" PRIu64 " stream bytes in at offset %" PRIu64 "; %s [%s%s]",
id.c_str(), len, stream_offset,
IsComplete() ? "complete" : "incomplete",
fmt_bytes((const char*) data, min((uint64)40, len)),
len > 40 ? "..." : "");
return true;
}
file_analysis::Analyzer* a = 0;
IterCookie* c = analyzers.InitForIteration();
void File::ReplayBOF()
{
if ( bof_buffer.replayed )
return;
bof_buffer.replayed = true;
if ( bof_buffer.chunks.empty() )
while ( (a = analyzers.NextEntry(c)) )
{
// Since we missed the beginning, try file type detect on next data in.
missed_bof = true;
return;
if ( ! a->GotStreamDelivery() )
{
int num_bof_chunks_behind = bof_buffer.chunks.size();
if ( ! bof_was_full )
// We just added a chunk to the BOF buffer, don't count it
// as it will get delivered on its own.
num_bof_chunks_behind -= 1;
uint64 bytes_delivered = 0;
// Catch this analyzer up with the BOF buffer.
for ( int i = 0; i < num_bof_chunks_behind; ++i )
{
if ( ! a->DeliverStream(bof_buffer.chunks[i]->Bytes(),
bof_buffer.chunks[i]->Len()) )
analyzers.QueueRemove(a->Tag(), a->Args());
bytes_delivered += bof_buffer.chunks[i]->Len();
}
a->SetGotStreamDelivery();
// May need to catch analyzer up on missed gap?
// Analyzer should be fully caught up to stream_offset now.
}
if ( ! a->DeliverStream(data, len) )
analyzers.QueueRemove(a->Tag(), a->Args());
}
BroString* bs = concatenate(bof_buffer.chunks);
val->Assign(bof_buffer_idx, new StringVal(bs));
stream_offset += len;
IncrementByteCount(len, seen_bytes_idx);
}
DetectMIME(bs->Bytes(), bs->Len());
FileEvent(file_new);
void File::DeliverChunk(const u_char* data, uint64 len, uint64 offset)
{
// Potentially handle reassembly and deliver to the stream analyzers.
if ( file_reassembler )
{
if ( reassembly_max_buffer > 0 &&
reassembly_max_buffer < file_reassembler->TotalSize() )
{
uint64 current_offset = stream_offset;
uint64 gap_bytes = file_reassembler->Flush();
IncrementByteCount(gap_bytes, overflow_bytes_idx);
for ( size_t i = 0; i < bof_buffer.chunks.size(); ++i )
DataIn(bof_buffer.chunks[i]->Bytes(), bof_buffer.chunks[i]->Len());
if ( FileEventAvailable(file_reassembly_overflow) )
{
val_list* vl = new val_list();
vl->append(val->Ref());
vl->append(new Val(current_offset, TYPE_COUNT));
vl->append(new Val(gap_bytes, TYPE_COUNT));
FileEvent(file_reassembly_overflow, vl);
}
}
// Forward data to the reassembler.
file_reassembler->NewBlock(network_time, offset, len, data);
}
else if ( stream_offset == offset )
{
// This is the normal case where a file is transferred linearly.
// Nothing special should be done here.
DeliverStream(data, len);
}
else if ( reassembly_enabled )
{
// This is data that doesn't match the offset and the reassembler
// needs to be enabled.
file_reassembler = new FileReassembler(this, stream_offset);
file_reassembler->NewBlock(network_time, offset, len, data);
}
else
{
// We can't reassemble so we throw out the data for streaming.
IncrementByteCount(len, overflow_bytes_idx);
}
DBG_LOG(DBG_FILE_ANALYSIS,
"[%s] %" PRIu64 " chunk bytes in at offset %" PRIu64 "; %s [%s%s]",
id.c_str(), len, offset,
IsComplete() ? "complete" : "incomplete",
fmt_bytes((const char*) data, min((uint64)40, len)),
len > 40 ? "..." : "");
file_analysis::Analyzer* a = 0;
IterCookie* c = analyzers.InitForIteration();
while ( (a = analyzers.NextEntry(c)) )
{
if ( ! a->DeliverChunk(data, len, offset) )
{
analyzers.QueueRemove(a->Tag(), a->Args());
}
}
if ( IsComplete() )
EndOfFile();
}
void File::DataIn(const u_char* data, uint64 len, uint64 offset)
{
analyzers.DrainModifications();
if ( first_chunk )
{
// TODO: this should all really be delayed until we attempt reassembly
DetectMIME(data, len);
FileEvent(file_new);
first_chunk = false;
}
DBG_LOG(DBG_FILE_ANALYSIS, "[%s] %" PRIu64 " bytes in at offset" PRIu64 "; %s [%s]",
id.c_str(), len, offset,
IsComplete() ? "complete" : "incomplete",
fmt_bytes((const char*) data, min((uint64)40, len)), len > 40 ? "..." : "");
file_analysis::Analyzer* a = 0;
IterCookie* c = analyzers.InitForIteration();
while ( (a = analyzers.NextEntry(c)) )
{
if ( ! a->DeliverChunk(data, len, offset) )
analyzers.QueueRemove(a->Tag(), a->Args());
}
DeliverChunk(data, len, offset);
analyzers.DrainModifications();
// TODO: check reassembly requirement based on buffer size in record
if ( need_reassembly )
reporter->InternalError("file_analyzer::File TODO: reassembly not yet supported");
// TODO: reassembly overflow stuff, increment overflow count, eval trigger
IncrementByteCount(len, seen_bytes_idx);
}
void File::DataIn(const u_char* data, uint64 len)
{
analyzers.DrainModifications();
if ( BufferBOF(data, len) )
return;
if ( missed_bof )
{
DetectMIME(data, len);
FileEvent(file_new);
missed_bof = false;
}
DBG_LOG(DBG_FILE_ANALYSIS, "[%s] %" PRIu64 " bytes in; %s [%s]",
id.c_str(), len,
IsComplete() ? "complete" : "incomplete",
fmt_bytes((const char*) data, min((uint64)40, len)), len > 40 ? "..." : "");
file_analysis::Analyzer* a = 0;
IterCookie* c = analyzers.InitForIteration();
while ( (a = analyzers.NextEntry(c)) )
{
if ( ! a->DeliverStream(data, len) )
{
analyzers.QueueRemove(a->Tag(), a->Args());
continue;
}
uint64 offset = LookupFieldDefaultCount(seen_bytes_idx) +
LookupFieldDefaultCount(missing_bytes_idx);
if ( ! a->DeliverChunk(data, len, offset) )
analyzers.QueueRemove(a->Tag(), a->Args());
}
DeliverChunk(data, len, stream_offset);
analyzers.DrainModifications();
IncrementByteCount(len, seen_bytes_idx);
}
void File::EndOfFile()
@ -413,10 +492,17 @@ void File::EndOfFile()
if ( done )
return;
if ( ! did_mime_type &&
LookupFieldDefaultCount(missing_bytes_idx) == 0 )
DetectMIME();
analyzers.DrainModifications();
// Send along anything that's been buffered, but never flushed.
ReplayBOF();
if ( file_reassembler )
{
file_reassembler->Flush();
analyzers.DrainModifications();
}
done = true;
@ -436,14 +522,17 @@ void File::EndOfFile()
void File::Gap(uint64 offset, uint64 len)
{
DBG_LOG(DBG_FILE_ANALYSIS, "[%s] Gap of size %" PRIu64 " at offset %" PRIu64,
DBG_LOG(DBG_FILE_ANALYSIS, "[%s] Gap of size %" PRIu64 " at offset %," PRIu64,
id.c_str(), len, offset);
analyzers.DrainModifications();
if ( file_reassembler && ! file_reassembler->IsCurrentlyFlushing() )
{
file_reassembler->FlushTo(offset + len);
// The reassembler will call us back with all the gaps we need to know.
return;
}
// If we were buffering the beginning of the file, a gap means we've got
// as much contiguous stuff at the beginning as possible, so work with that.
ReplayBOF();
analyzers.DrainModifications();
file_analysis::Analyzer* a = 0;
IterCookie* c = analyzers.InitForIteration();
@ -464,6 +553,8 @@ void File::Gap(uint64 offset, uint64 len)
}
analyzers.DrainModifications();
stream_offset += len;
IncrementByteCount(len, missing_bytes_idx);
}
@ -482,30 +573,13 @@ void File::FileEvent(EventHandlerPtr h)
FileEvent(h, vl);
}
static void flush_file_event_queue(queue<pair<EventHandlerPtr, val_list*> >& q)
{
while ( ! q.empty() )
{
pair<EventHandlerPtr, val_list*> p = q.front();
mgr.QueueEvent(p.first, p.second);
q.pop();
}
}
void File::FileEvent(EventHandlerPtr h, val_list* vl)
{
if ( h == file_state_remove )
flush_file_event_queue(fonc_queue);
mgr.QueueEvent(h, vl);
if ( h == file_new )
{
did_file_new_event = true;
flush_file_event_queue(fonc_queue);
}
if ( h == file_new || h == file_timeout || h == file_extraction_limit )
if ( h == file_new || h == file_over_new_connection ||
h == file_mime_type ||
h == file_timeout || h == file_extraction_limit )
{
// immediate feedback is required for these events.
mgr.Drain();

79
src/file_analysis/File.h
View file

@ -3,11 +3,11 @@
#ifndef FILE_ANALYSIS_FILE_H
#define FILE_ANALYSIS_FILE_H
#include <queue>
#include <string>
#include <utility>
#include <vector>
#include "FileReassembler.h"
#include "Conn.h"
#include "Val.h"
#include "Tag.h"
@ -16,6 +16,8 @@
namespace file_analysis {
class FileReassembler;
/**
* Wrapper class around \c fa_file record values from script layer.
*/
@ -86,10 +88,10 @@ public:
void SetTotalBytes(uint64 size);
/**
* Compares "seen_bytes" field to "total_bytes" field of #val record to
* determine if the full file has been seen.
* @return false if "total_bytes" hasn't been set yet or "seen_bytes" is
* less than it, else true.
* @return true if file analysis is complete for the file, else false.
* It is incomplete if the total size is unknown or if the number of bytes
* streamed to analyzers (either as data delivers or gap information)
* matches the known total size.
*/
bool IsComplete() const;
@ -166,18 +168,20 @@ public:
protected:
friend class Manager;
friend class FileReassembler;
/**
* Constructor; only file_analysis::Manager should be creating these.
* @param file_id an identifier string for the file in pretty hash form
* (similar to connection uids).
* @param source_name the value for the source field to fill in.
* @param conn a network connection over which the file is transferred.
* @param tag the network protocol over which the file is transferred.
* @param is_orig true if the file is being transferred from the originator
* of the connection to the responder. False indicates the other
* direction.
*/
File(const string& file_id, Connection* conn = 0,
File(const string& file_id, const string& source_name, Connection* conn = 0,
analyzer::Tag tag = analyzer::Tag::Error, bool is_orig = false);
/**
@ -185,8 +189,14 @@ protected:
* \c conn_id and UID taken from \a conn.
* @param conn the connection over which a part of the file has been seen.
* @param is_orig true if the connection originator is sending the file.
* @return true if the connection was previously unknown.
*/
void UpdateConnectionFields(Connection* conn, bool is_orig);
bool UpdateConnectionFields(Connection* conn, bool is_orig);
/**
* Raise the file_over_new_connection event with given arguments.
*/
void RaiseFileOverNewConnection(Connection* conn, bool is_orig);
/**
* Increment a byte count field of #val record by \a size.
@ -219,20 +229,40 @@ protected:
*/
bool BufferBOF(const u_char* data, uint64 len);
/**
* Forward any beginning-of-file buffered data on to DataIn stream.
*/
void ReplayBOF();
/**
* Does mime type detection via file magic signatures and assigns
* strongest matching mime type (if available) to \c mime_type
* field in #val.
* @param data pointer to a chunk of file data.
* @param len number of bytes in the data chunk.
* field in #val. It uses the data in the BOF buffer.
* @return whether a mime type match was found.
*/
bool DetectMIME(const u_char* data, uint64 len);
bool DetectMIME();
/**
* Enables reassembly on the file.
*/
void EnableReassembly();
/**
* Disables reassembly on the file. If there is an existing reassembler
* for the file, this will cause it to be deleted and won't allow a new
* one to be created until reassembly is reenabled.
*/
void DisableReassembly();
/**
* Set a maximum allowed bytes of memory for file reassembly for this file.
*/
void SetReassemblyBuffer(uint64 max);
/**
* Perform stream-wise delivery for analyzers that need it.
*/
void DeliverStream(const u_char* data, uint64 len);
/**
* Perform chunk-wise delivery for analyzers that need it.
*/
void DeliverChunk(const u_char* data, uint64 len, uint64 offset);
/**
* Lookup a record field index/offset by name.
@ -246,25 +276,24 @@ protected:
*/
static void StaticInit();
private:
protected:
string id; /**< A pretty hash that likely identifies file */
RecordVal* val; /**< \c fa_file from script layer. */
FileReassembler* file_reassembler; /**< A reassembler for the file if it's needed. */
uint64 stream_offset; /**< The offset of the file which has been forwarded. */
uint64 reassembly_max_buffer; /**< Maximum allowed buffer for reassembly. */
bool did_mime_type; /**< Whether the mime type ident has already been attempted. */
bool reassembly_enabled; /**< Whether file stream reassembly is needed. */
bool postpone_timeout; /**< Whether postponing timeout is requested. */
bool first_chunk; /**< Track first non-linear chunk. */
bool missed_bof; /**< Flags that we missed start of file. */
bool need_reassembly; /**< Whether file stream reassembly is needed. */
bool done; /**< If this object is about to be deleted. */
bool did_file_new_event; /**< Whether the file_new event has been done. */
AnalyzerSet analyzers; /**< A set of attached file analyzer. */
queue<pair<EventHandlerPtr, val_list*> > fonc_queue;
AnalyzerSet analyzers; /**< A set of attached file analyzers. */
struct BOF_Buffer {
BOF_Buffer() : full(false), replayed(false), size(0) {}
BOF_Buffer() : full(false), size(0) {}
~BOF_Buffer()
{ for ( size_t i = 0; i < chunks.size(); ++i ) delete chunks[i]; }
bool full;
bool replayed;
uint64 size;
BroString::CVec chunks;
} bof_buffer; /**< Beginning of file buffer. */

123
src/file_analysis/FileReassembler.cc Normal file
View file

@ -0,0 +1,123 @@
#include "FileReassembler.h"
#include "File.h"
namespace file_analysis {
class File;
FileReassembler::FileReassembler(File *f, uint64 starting_offset)
: Reassembler(starting_offset), the_file(f), flushing(false)
{
}
FileReassembler::~FileReassembler()
{
}
uint64 FileReassembler::Flush()
{
if ( flushing )
return 0;
if ( last_block )
{
// This is expected to call back into FileReassembler::Undelivered().
flushing = true;
uint64 rval = TrimToSeq(last_block->upper);
flushing = false;
return rval;
}
return 0;
}
uint64 FileReassembler::FlushTo(uint64 sequence)
{
if ( flushing )
return 0;
flushing = true;
uint64 rval = TrimToSeq(sequence);
flushing = false;
last_reassem_seq = sequence;
return rval;
}
void FileReassembler::BlockInserted(DataBlock* start_block)
{
if ( start_block->seq > last_reassem_seq ||
start_block->upper <= last_reassem_seq )
return;
for ( DataBlock* b = start_block;
b && b->seq <= last_reassem_seq; b = b->next )
{
if ( b->seq == last_reassem_seq )
{ // New stuff.
uint64 len = b->Size();
last_reassem_seq += len;
the_file->DeliverStream(b->block, len);
}
}
// Throw out forwarded data
TrimToSeq(last_reassem_seq);
}
void FileReassembler::Undelivered(uint64 up_to_seq)
{
// If we have blocks that begin below up_to_seq, deliver them.
DataBlock* b = blocks;
while ( b )
{
if ( b->seq < last_reassem_seq )
{
// Already delivered this block.
b = b->next;
continue;
}
if ( b->seq >= up_to_seq )
// Block is beyond what we need to process at this point.
break;
uint64 gap_at_seq = last_reassem_seq;
uint64 gap_len = b->seq - last_reassem_seq;
the_file->Gap(gap_at_seq, gap_len);
last_reassem_seq += gap_len;
BlockInserted(b);
// Inserting a block may cause trimming of what's buffered,
// so have to assume 'b' is invalid, hence re-assign to start.
b = blocks;
}
if ( up_to_seq > last_reassem_seq )
{
the_file->Gap(last_reassem_seq, up_to_seq - last_reassem_seq);
last_reassem_seq = up_to_seq;
}
}
void FileReassembler::Overlap(const u_char* b1, const u_char* b2, uint64 n)
{
// Not doing anything here yet.
}
IMPLEMENT_SERIAL(FileReassembler, SER_FILE_REASSEMBLER);
bool FileReassembler::DoSerialize(SerialInfo* info) const
{
reporter->InternalError("FileReassembler::DoSerialize not implemented");
return false; // Cannot be reached.
}
bool FileReassembler::DoUnserialize(UnserialInfo* info)
{
reporter->InternalError("FileReassembler::DoUnserialize not implemented");
return false; // Cannot be reached.
}
} // end file_analysis

65
src/file_analysis/FileReassembler.h Normal file
View file

@ -0,0 +1,65 @@
#ifndef FILE_ANALYSIS_FILEREASSEMBLER_H
#define FILE_ANALYSIS_FILEREASSEMBLER_H
#include "Reassem.h"
#include "File.h"
class BroFile;
class Connection;
namespace file_analysis {
class File;
class FileReassembler : public Reassembler {
public:
FileReassembler(File* f, uint64 starting_offset);
virtual ~FileReassembler();
void Done();
// Checks if we have delivered all contents that we can possibly
// deliver for this endpoint.
void CheckEOF();
/**
* Discards all contents of the reassembly buffer. This will spin through
* the buffer and call File::DeliverStream() and File::Gap() wherever
* appropriate.
* @return the number of new bytes now detected as gaps in the file.
*/
uint64 Flush();
/**
* Discards all contents of the reassembly buffer up to a given sequence
* number. This will spin through the buffer and call
* File::DeliverStream() and File::Gap() wherever appropriate.
* @param sequence the sequence number to flush until.
* @return the number of new bytes now detected as gaps in the file.
*/
uint64 FlushTo(uint64 sequence);
/**
* @return whether the reassembler is currently is the process of flushing
* out the contents of its buffer.
*/
bool IsCurrentlyFlushing() const
{ return flushing; }
protected:
FileReassembler() { }
DECLARE_SERIAL(FileReassembler);
void Undelivered(uint64 up_to_seq);
void BlockInserted(DataBlock* b);
void Overlap(const u_char* b1, const u_char* b2, uint64 n);
File* the_file;
bool flushing;
};
} // namespace analyzer::*
#endif

136
src/file_analysis/Manager.cc
View file

@ -154,14 +154,12 @@ string Manager::DataIn(const u_char* data, uint64 len, analyzer::Tag tag,
void Manager::DataIn(const u_char* data, uint64 len, const string& file_id,
const string& source)
{
File* file = GetFile(file_id);
File* file = GetFile(file_id, 0, analyzer::Tag::Error, false, false,
source.c_str());
if ( ! file )
return;
if ( file->GetSource().empty() )
file->SetSource(source);
file->DataIn(data, len);
if ( file->IsComplete() )
@ -232,6 +230,39 @@ bool Manager::SetTimeoutInterval(const string& file_id, double interval) const
return true;
}
bool Manager::EnableReassembly(const string& file_id)
{
File* file = LookupFile(file_id);
if ( ! file )
return false;
file->EnableReassembly();
return true;
}
bool Manager::DisableReassembly(const string& file_id)
{
File* file = LookupFile(file_id);
if ( ! file )
return false;
file->DisableReassembly();
return true;
}
bool Manager::SetReassemblyBuffer(const string& file_id, uint64 max)
{
File* file = LookupFile(file_id);
if ( ! file )
return false;
file->SetReassemblyBuffer(max);
return true;
}
bool Manager::SetExtractionLimit(const string& file_id, RecordVal* args,
uint64 n) const
{
@ -254,28 +285,6 @@ bool Manager::AddAnalyzer(const string& file_id, file_analysis::Tag tag,
return file->AddAnalyzer(tag, args);
}
TableVal* Manager::AddAnalyzersForMIMEType(const string& file_id, const string& mtype,
RecordVal* args)
{
if ( ! tag_set_type )
tag_set_type = internal_type("files_tag_set")->AsTableType();
TableVal* sval = new TableVal(tag_set_type);
TagSet* l = LookupMIMEType(mtype, false);
if ( ! l )
return sval;
for ( TagSet::const_iterator i = l->begin(); i != l->end(); i++ )
{
file_analysis::Tag tag = *i;
if ( AddAnalyzer(file_id, tag, args) )
sval->Assign(tag.AsEnumVal(), 0);
}
return sval;
}
bool Manager::RemoveAnalyzer(const string& file_id, file_analysis::Tag tag,
RecordVal* args) const
{
@ -288,7 +297,8 @@ bool Manager::RemoveAnalyzer(const string& file_id, file_analysis::Tag tag,
}
File* Manager::GetFile(const string& file_id, Connection* conn,
analyzer::Tag tag, bool is_orig, bool update_conn)
analyzer::Tag tag, bool is_orig, bool update_conn,
const char* source_name)
{
if ( file_id.empty() )
return 0;
@ -300,10 +310,19 @@ File* Manager::GetFile(const string& file_id, Connection* conn,
if ( ! rval )
{
rval = new File(file_id, conn, tag, is_orig);
rval = new File(file_id,
source_name ? source_name
: analyzer_mgr->GetComponentName(tag),
conn, tag, is_orig);
id_map.Insert(file_id.c_str(), rval);
rval->ScheduleInactivityTimer();
// Generate file_new after inserting it into manager's mapping
// in case script-layer calls back in to core from the event.
rval->FileEvent(file_new);
// Same for file_over_new_connection.
rval->RaiseFileOverNewConnection(conn, is_orig);
if ( IsIgnored(file_id) )
return 0;
}
@ -311,8 +330,8 @@ File* Manager::GetFile(const string& file_id, Connection* conn,
{
rval->UpdateLastActivityTime();
if ( update_conn )
rval->UpdateConnectionFields(conn, is_orig);
if ( update_conn && rval->UpdateConnectionFields(conn, is_orig) )
rval->RaiseFileOverNewConnection(conn, is_orig);
}
return rval;
@ -461,63 +480,6 @@ Analyzer* Manager::InstantiateAnalyzer(Tag tag, RecordVal* args, File* f) const
return a;
}
Manager::TagSet* Manager::LookupMIMEType(const string& mtype, bool add_if_not_found)
{
MIMEMap::const_iterator i = mime_types.find(to_upper(mtype));
if ( i != mime_types.end() )
return i->second;
if ( ! add_if_not_found )
return 0;
TagSet* l = new TagSet;
mime_types.insert(std::make_pair(to_upper(mtype), l));
return l;
}
bool Manager::RegisterAnalyzerForMIMEType(EnumVal* tag, StringVal* mtype)
{
Component* p = Lookup(tag);
if ( ! p )
return false;
return RegisterAnalyzerForMIMEType(p->Tag(), mtype->CheckString());
}
bool Manager::RegisterAnalyzerForMIMEType(Tag tag, const string& mtype)
{
TagSet* l = LookupMIMEType(mtype, true);
DBG_LOG(DBG_FILE_ANALYSIS, "Register analyzer %s for MIME type %s",
GetComponentName(tag).c_str(), mtype.c_str());
l->insert(tag);
return true;
}
bool Manager::UnregisterAnalyzerForMIMEType(EnumVal* tag, StringVal* mtype)
{
Component* p = Lookup(tag);
if ( ! p )
return false;
return UnregisterAnalyzerForMIMEType(p->Tag(), mtype->CheckString());
}
bool Manager::UnregisterAnalyzerForMIMEType(Tag tag, const string& mtype)
{
TagSet* l = LookupMIMEType(mtype, true);
DBG_LOG(DBG_FILE_ANALYSIS, "Unregister analyzer %s for MIME type %s",
GetComponentName(tag).c_str(), mtype.c_str());
l->erase(tag);
return true;
}
RuleMatcher::MIME_Matches* Manager::DetectMIME(const u_char* data, uint64 len,
RuleMatcher::MIME_Matches* rval) const
{

87
src/file_analysis/Manager.h
View file

@ -213,6 +213,21 @@ public:
*/
bool SetTimeoutInterval(const string& file_id, double interval) const;
/**
* Enable the reassembler for a file.
*/
bool EnableReassembly(const string& file_id);
/**
* Disable the reassembler for a file.
*/
bool DisableReassembly(const string& file_id);
/**
* Set the reassembly for a file in bytes.
*/
bool SetReassemblyBuffer(const string& file_id, uint64 max);
/**
* Sets a limit on the maximum size allowed for extracting the file
* to local disk;
@ -238,18 +253,6 @@ public:
bool AddAnalyzer(const string& file_id, file_analysis::Tag tag,
RecordVal* args) const;
/**
* Queue attachment of an all analyzers associated with a given MIME
* type to the file identifier.
*
* @param file_id the file identifier/hash.
* @param mtype the MIME type; comparisions will be performanced case-insensitive.
* @param args a \c AnalyzerArgs value which describes a file analyzer.
* @return A ref'ed \c set[Tag] with all added analyzers.
*/
TableVal* AddAnalyzersForMIMEType(const string& file_id, const string& mtype,
RecordVal* args);
/**
* Queue removal of an analyzer for a given file identifier.
* @param file_id the file identifier/hash.
@ -277,62 +280,6 @@ public:
Analyzer* InstantiateAnalyzer(Tag tag, RecordVal* args, File* f) const;
/**
* Registers a MIME type for an analyzer. Once registered, files of
* that MIME type will automatically get a corresponding analyzer
* assigned.
*
* @param tag The analyzer's tag as an enum of script type \c
* Files::Tag.
*
* @param mtype The MIME type. It will be matched case-insenistive.
*
* @return True if successful.
*/
bool RegisterAnalyzerForMIMEType(EnumVal* tag, StringVal* mtype);
/**
* Registers a MIME type for an analyzer. Once registered, files of
* that MIME type will automatically get a corresponding analyzer
* assigned.
*
* @param tag The analyzer's tag as an enum of script type \c
* Files::Tag.
*
* @param mtype The MIME type. It will be matched case-insenistive.
*
* @return True if successful.
*/
bool RegisterAnalyzerForMIMEType(Tag tag, const string& mtype);
/**
* Unregisters a MIME type for an analyzer.
*
* @param tag The analyzer's tag as an enum of script type \c
* Files::Tag.
*
* @param mtype The MIME type. It will be matched case-insenistive.
*
* @return True if successful (incl. when the type wasn't actually
* registered for the analyzer).
*
*/
bool UnregisterAnalyzerForMIMEType(EnumVal* tag, StringVal* mtype);
/**
* Unregisters a MIME type for an analyzer.
*
* @param tag The analyzer's tag as an enum of script type \c
* Files::Tag.
*
* @param mtype The MIME type. It will be matched case-insenistive.
*
* @return True if successful (incl. when the type wasn't actually
* registered for the analyzer).
*
*/
bool UnregisterAnalyzerForMIMEType(Tag tag, const string& mtype);
/**
* Returns a set of all matching MIME magic signatures for a given
* chunk of data.
* @param data A chunk of bytes to match magic MIME signatures against.
@ -372,6 +319,7 @@ protected:
* this file isn't related to a connection).
* @param update_conn whether we need to update connection-related field
* in the \c fa_file record value associated with the file.
* @param an optional value of the source field to fill in.
* @return the File object mapped to \a file_id or a null pointer if
* analysis is being ignored for the associated file. An File
* object may be created if a mapping doesn't exist, and if it did
@ -380,7 +328,8 @@ protected:
*/
File* GetFile(const string& file_id, Connection* conn = 0,
analyzer::Tag tag = analyzer::Tag::Error,
bool is_orig = false, bool update_conn = true);
bool is_orig = false, bool update_conn = true,
const char* source_name = 0);
/**
* Try to retrieve a file that's being analyzed, using its identifier/hash.

45
src/file_analysis/analyzer/extract/Extract.cc
View file

@ -12,9 +12,9 @@ using namespace file_analysis;
Extract::Extract(RecordVal* args, File* file, const string& arg_filename,
uint64 arg_limit)
: file_analysis::Analyzer(file_mgr->GetComponentTag("EXTRACT"), args, file),
filename(arg_filename), limit(arg_limit)
filename(arg_filename), limit(arg_limit), depth(0)
{
fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0666);
fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_APPEND, 0666);
if ( fd < 0 )
{
@ -53,7 +53,7 @@ file_analysis::Analyzer* Extract::Instantiate(RecordVal* args, File* file)
limit->AsCount());
}
static bool check_limit_exceeded(uint64 lim, uint64 off, uint64 len, uint64* n)
static bool check_limit_exceeded(uint64 lim, uint64 depth, uint64 len, uint64* n)
{
if ( lim == 0 )
{
@ -61,29 +61,31 @@ static bool check_limit_exceeded(uint64 lim, uint64 off, uint64 len, uint64* n)
return false;
}
if ( off >= lim )
if ( depth >= lim )
{
*n = 0;
return true;
}
*n = lim - off;
if ( len > *n )
else if ( depth + len > lim )
{
*n = lim - depth;
return true;
}
else
{
*n = len;
}
return false;
}
bool Extract::DeliverChunk(const u_char* data, uint64 len, uint64 offset)
bool Extract::DeliverStream(const u_char* data, uint64 len)
{
if ( ! fd )
return false;
uint64 towrite = 0;
bool limit_exceeded = check_limit_exceeded(limit, offset, len, &towrite);
bool limit_exceeded = check_limit_exceeded(limit, depth, len, &towrite);
if ( limit_exceeded && file_extraction_limit )
{
@ -92,16 +94,31 @@ bool Extract::DeliverChunk(const u_char* data, uint64 len, uint64 offset)
vl->append(f->GetVal()->Ref());
vl->append(Args()->Ref());
vl->append(new Val(limit, TYPE_COUNT));
vl->append(new Val(offset, TYPE_COUNT));
vl->append(new Val(len, TYPE_COUNT));
f->FileEvent(file_extraction_limit, vl);
// Limit may have been modified by BIF, re-check it.
limit_exceeded = check_limit_exceeded(limit, offset, len, &towrite);
// Limit may have been modified by a BIF, re-check it.
limit_exceeded = check_limit_exceeded(limit, depth, len, &towrite);
}
if ( towrite > 0 )
safe_pwrite(fd, data, towrite, offset);
{
safe_write(fd, reinterpret_cast<const char*>(data), towrite);
depth += towrite;
}
return ( ! limit_exceeded );
}
bool Extract::Undelivered(uint64 offset, uint64 len)
{
if ( depth == offset )
{
char* tmp = new char[len]();
safe_write(fd, tmp, len);
delete [] tmp;
depth += len;
}
return true;
}

12
src/file_analysis/analyzer/extract/Extract.h
View file

@ -28,11 +28,18 @@ public:
* Write a chunk of file data to the local extraction file.
* @param data pointer to a chunk of file data.
* @param len number of bytes in the data chunk.
* @param offset number of bytes from start of file at which chunk starts.
* @return false if there was no extraction file open and the data couldn't
* be written, else true.
*/
virtual bool DeliverChunk(const u_char* data, uint64 len, uint64 offset);
virtual bool DeliverStream(const u_char* data, uint64 len);
/**
* Report undelivered bytes.
* @param offset distance into the file where the gap occurred.
* @param len number of bytes undelivered.
* @return true
*/
virtual bool Undelivered(uint64 offset, uint64 len);
/**
* Create a new instance of an Extract analyzer.
@ -67,6 +74,7 @@ private:
string filename;
int fd;
uint64 limit;
uint64 depth;
};
} // namespace file_analysis

4
src/file_analysis/analyzer/extract/events.bif
View file

@ -11,9 +11,7 @@
##
## limit: The limit, in bytes, the extracted file is about to breach.
##
## offset: The offset at which a file chunk is about to be written.
##
## len: The length of the file chunk about to be written.
##
## .. bro:see:: Files::add_analyzer Files::ANALYZER_EXTRACT
event file_extraction_limit%(f: fa_file, args: any, limit: count, offset: count, len: count%);
event file_extraction_limit%(f: fa_file, args: any, limit: count, len: count%);

2
src/file_analysis/analyzer/x509/X509.cc
View file

@ -147,7 +147,7 @@ RecordVal* file_analysis::X509::ParseCertificate(X509Val* cert_val)
#ifndef OPENSSL_NO_EC
else if ( pkey->type == EVP_PKEY_EC )
{
pX509Cert->Assign(8, new StringVal("dsa"));
pX509Cert->Assign(8, new StringVal("ecdsa"));
pX509Cert->Assign(11, KeyCurve(pkey));
}
#endif

38
src/file_analysis/file_analysis.bif
View file

@ -15,6 +15,27 @@ function Files::__set_timeout_interval%(file_id: string, t: interval%): bool
return new Val(result, TYPE_BOOL);
%}
## :bro:see:`Files::enable_reassembly`.
function Files::__enable_reassembly%(file_id: string%): bool
%{
bool result = file_mgr->EnableReassembly(file_id->CheckString());
return new Val(result, TYPE_BOOL);
%}
## :bro:see:`Files::disable_reassembly`.
function Files::__disable_reassembly%(file_id: string%): bool
%{
bool result = file_mgr->DisableReassembly(file_id->CheckString());
return new Val(result, TYPE_BOOL);
%}
## :bro:see:`Files::set_reassembly_buffer`.
function Files::__set_reassembly_buffer%(file_id: string, max: count%): bool
%{
bool result = file_mgr->SetReassemblyBuffer(file_id->CheckString(), max);
return new Val(result, TYPE_BOOL);
%}
## :bro:see:`Files::add_analyzer`.
function Files::__add_analyzer%(file_id: string, tag: Files::Tag, args: any%): bool
%{
@ -26,16 +47,6 @@ function Files::__add_analyzer%(file_id: string, tag: Files::Tag, args: any%): b
return new Val(result, TYPE_BOOL);
%}
## :bro:see:`Files::add_analyzers_for_mime_type`.
function Files::__add_analyzers_for_mime_type%(file_id: string, mtype: string, args: any%): files_tag_set
%{
using BifType::Record::Files::AnalyzerArgs;
RecordVal* rv = args->AsRecordVal()->CoerceTo(AnalyzerArgs);
Val* analyzers = file_mgr->AddAnalyzersForMIMEType(file_id->CheckString(), mtype->CheckString(), rv);
Unref(rv);
return analyzers;
%}
## :bro:see:`Files::remove_analyzer`.
function Files::__remove_analyzer%(file_id: string, tag: Files::Tag, args: any%): bool
%{
@ -60,13 +71,6 @@ function Files::__analyzer_name%(tag: Files::Tag%) : string
return new StringVal(file_mgr->GetComponentName(tag));
%}
## :bro:see:`Files::register_for_mime_type`.
function Files::__register_for_mime_type%(id: Analyzer::Tag, mt: string%) : bool
%{
bool result = file_mgr->RegisterAnalyzerForMIMEType(id->AsEnumVal(), mt);
return new Val(result, TYPE_BOOL);
%}
module GLOBAL;
## For use within a :bro:see:`get_file_handle` handler to set a unique

42
src/scan.l
View file

@ -26,6 +26,7 @@
#include "Reporter.h"
#include "RE.h"
#include "Net.h"
#include "Traverse.h"
#include "analyzer/Analyzer.h"
#include "broxygen/Manager.h"
@ -615,11 +616,50 @@ void end_RE()
BEGIN(INITIAL);
}
class LocalNameFinder : public TraversalCallback {
public:
LocalNameFinder()
{}
virtual TraversalCode PreExpr(const Expr* expr)
{
if ( expr->Tag() != EXPR_NAME )
return TC_CONTINUE;
const NameExpr* name_expr = static_cast<const NameExpr*>(expr);
if ( name_expr->Id()->IsGlobal() )
return TC_CONTINUE;
local_names.push_back(name_expr);
return TC_CONTINUE;
}
std::vector<const NameExpr*> local_names;
};
void do_atif(Expr* expr)
{
++current_depth;
Val* val = expr->Eval(0);
LocalNameFinder cb;
expr->Traverse(&cb);
Val* val = 0;
if ( cb.local_names.empty() )
val = expr->Eval(0);
else
{
for ( size_t i = 0; i < cb.local_names.size(); ++i )
cb.local_names[i]->Error("referencing a local name in @if");
}
if ( ! val )
{
expr->Error("invalid expression in @if");
return;
}
if ( ! val->AsBool() )
{
if_stack.append(current_depth);

4
testing/Makefile
View file

@ -5,6 +5,10 @@ all: make-verbose coverage
brief: make-brief coverage
distclean:
@rm -f coverage.log
$(MAKE) -C btest $@
make-verbose:
@for repo in $(DIRS); do (cd $$repo && make -s ); done

6
testing/btest/Baseline/bifs.enum_to_int/out Normal file
View file

@ -0,0 +1,6 @@
A, 0
B, 1
C, 2
AV, 10
BV, 11
CV, 12

4
testing/btest/Baseline/core.bits_per_uid/128
View file

@ -1,9 +1,9 @@
CUWkUyAuUGXfarKYeMETxOg
Ck6kgXLOoSKlnQcgTWjvg4c
Cj4u32Pc5bifTEfuqmmG4bh
Fj3nTWNjezo6G6xBmyo58Tf
Cj4u32Pc5bifTEfuqmmG4bh
F4VAnSiNGSQhKEoCPd4zuQd
CFrJExwHcSal5OKnoww6xl4
C3PKsZ2Uye21VW0XPVINV8a
FaJg8mtdsS86cWjSe4spPPl
C3PKsZ2Uye21VW0XPVINV8a
FvBr89nD30GgGAp3wgtm6qf

4
testing/btest/Baseline/core.bits_per_uid/256
View file

@ -1,9 +1,9 @@
CUWkUyAuUGXfarKYeMETxOg
Ck6kgXLOoSKlnQcgTWjvg4c
Cj4u32Pc5bifTEfuqmmG4bh
Fj3nTWNjezo6G6xBmyo58Tf
Cj4u32Pc5bifTEfuqmmG4bh
F4VAnSiNGSQhKEoCPd4zuQd
CFrJExwHcSal5OKnoww6xl4
C3PKsZ2Uye21VW0XPVINV8a
FaJg8mtdsS86cWjSe4spPPl
C3PKsZ2Uye21VW0XPVINV8a
FvBr89nD30GgGAp3wgtm6qf

4
testing/btest/Baseline/core.bits_per_uid/32
View file

@ -1,9 +1,9 @@
CXWv6p30
CCyvnA30
CjhGID40
F75yAm10
CjhGID40
FmGk6O30
CdfHBz20
CCvvfg30
Fuh3fj10
CCvvfg30
Ftwuyy30

4
testing/btest/Baseline/core.bits_per_uid/64
View file

@ -1,9 +1,9 @@
CUWkUyAuUGXf0
CarKYeMETxOg0
Ck6kgXLOoSKl0
Fj3nTWNjezo60
Ck6kgXLOoSKl0
F4VAnSiNGSQh0
CnQcgTWjvg4c0
Cj4u32Pc5bif0
FaJg8mtdsS860
Cj4u32Pc5bif0
FvBr89nD30Gg0

4
testing/btest/Baseline/core.bits_per_uid/96
View file

@ -1,9 +1,9 @@
CXWv6p3arKYeMETxOg
CjhGID4nQcgTWjvg4c
CCvvfg3TEfuqmmG4bh
F75yAm1G6xBmyo58Tf
CCvvfg3TEfuqmmG4bh
FmGk6O3KEoCPd4zuQd
CsRx2w45OKnoww6xl4
CRJuHdVW0XPVINV8a
Fuh3fj1cWjSe4spPPl
CRJuHdVW0XPVINV8a
Ftwuyy3GAp3wgtm6qf

13
testing/btest/Baseline/core.print-bpf-filters/output2
View file

@ -1,5 +1,6 @@
2 1080
1 137
1 1434
1 161
1 162
1 1812
@ -11,6 +12,7 @@
1 25
1 2811
1 3128
1 3306
1 3544
1 443
1 502
@ -36,15 +38,14 @@
1 8000
1 8080
1 81
1 88
1 8888
1 989
1 990
1 992
1 993
1 995
47 and
46 or
47 port
32 tcp
15 udp
48 and
47 or
48 port
34 tcp
14 udp

5
testing/btest/Baseline/coverage.bare-load-baseline/canonified_loaded_scripts.log
View file

@ -3,7 +3,7 @@
#empty_field (empty)
#unset_field -
#path loaded_scripts
#open 2014-09-06-01-19-42
#open 2014-10-31-20-38-14
#fields name
#types string
scripts/base/init-bare.bro
@ -73,6 +73,7 @@ scripts/base/init-bare.bro
build/scripts/base/bif/plugins/Bro_Login.functions.bif.bro
build/scripts/base/bif/plugins/Bro_MIME.events.bif.bro
build/scripts/base/bif/plugins/Bro_Modbus.events.bif.bro
build/scripts/base/bif/plugins/Bro_MySQL.events.bif.bro
build/scripts/base/bif/plugins/Bro_NCP.events.bif.bro
build/scripts/base/bif/plugins/Bro_NetBIOS.events.bif.bro
build/scripts/base/bif/plugins/Bro_NetBIOS.functions.bif.bro
@ -114,4 +115,4 @@ scripts/base/init-bare.bro
build/scripts/base/bif/plugins/Bro_SQLiteWriter.sqlite.bif.bro
scripts/policy/misc/loaded-scripts.bro
scripts/base/utils/paths.bro
#close 2014-09-06-01-19-42
#close 2014-10-31-20-38-14

8
testing/btest/Baseline/coverage.default-load-baseline/canonified_loaded_scripts.log
View file

@ -3,7 +3,7 @@
#empty_field (empty)
#unset_field -
#path loaded_scripts
#open 2014-09-06-01-20-32
#open 2014-10-31-20-38-48
#fields name
#types string
scripts/base/init-bare.bro
@ -73,6 +73,7 @@ scripts/base/init-bare.bro
build/scripts/base/bif/plugins/Bro_Login.functions.bif.bro
build/scripts/base/bif/plugins/Bro_MIME.events.bif.bro
build/scripts/base/bif/plugins/Bro_Modbus.events.bif.bro
build/scripts/base/bif/plugins/Bro_MySQL.events.bif.bro
build/scripts/base/bif/plugins/Bro_NCP.events.bif.bro
build/scripts/base/bif/plugins/Bro_NetBIOS.events.bif.bro
build/scripts/base/bif/plugins/Bro_NetBIOS.functions.bif.bro
@ -217,6 +218,9 @@ scripts/base/init-default.bro
scripts/base/protocols/modbus/__load__.bro
scripts/base/protocols/modbus/consts.bro
scripts/base/protocols/modbus/main.bro
scripts/base/protocols/mysql/__load__.bro
scripts/base/protocols/mysql/main.bro
scripts/base/protocols/mysql/consts.bro
scripts/base/protocols/pop3/__load__.bro
scripts/base/protocols/radius/__load__.bro
scripts/base/protocols/radius/main.bro
@ -243,4 +247,4 @@ scripts/base/init-default.bro
scripts/base/misc/find-checksum-offloading.bro
scripts/base/misc/find-filtered-trace.bro
scripts/policy/misc/loaded-scripts.bro
#close 2014-09-06-01-20-32
#close 2014-10-31-20-38-48

1
testing/btest/Baseline/coverage.find-bro-logs/out
View file

@ -21,6 +21,7 @@ known_services
loaded_scripts
modbus
modbus_register_change
mysql
notice
notice_alarm
packet_filter

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