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Code Issues Projects Releases Packages Wiki Activity Actions 3

File analysis framework interface simplifications.

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- Remove script-layer data input interface (will be managed directly
  by input framework later).

- Only track files internally by file id hash.  Chance of collision
  too small to justify also tracking unique file string.
This commit is contained in:
Jon Siwek 2013-05-20 12:02:48 -05:00
parent e46300a724
commit 90fa331279
10 changed files with 125 additions and 357 deletions
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77
scripts/base/frameworks/file-analysis/main.bro
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@ -171,58 +171,6 @@ export {
## rest of it's contents, or false if analysis for the *id*
## isn't currently active.
global stop: function(f: fa_file): bool;
## Sends a sequential stream of data in for file analysis.
## Meant for use when providing external file analysis input (e.g.
## from the input framework).
##
## source: a string that uniquely identifies the logical file that the
## data is a part of and describes its source.
##
## data: bytestring contents of the file to analyze.
global data_stream: function(source: string, data: string);
## Sends a non-sequential chunk of data in for file analysis.
## Meant for use when providing external file analysis input (e.g.
## from the input framework).
##
## source: a string that uniquely identifies the logical file that the
## data is a part of and describes its source.
##
## data: bytestring contents of the file to analyze.
##
## offset: the offset within the file that this chunk starts.
global data_chunk: function(source: string, data: string, offset: count);
## Signals a content gap in the file bytestream.
## Meant for use when providing external file analysis input (e.g.
## from the input framework).
##
## source: a string that uniquely identifies the logical file that the
## data is a part of and describes its source.
##
## offset: the offset within the file that this gap starts.
##
## len: the number of bytes that are missing.
global gap: function(source: string, offset: count, len: count);
## Signals the total size of a file.
## Meant for use when providing external file analysis input (e.g.
## from the input framework).
##
## source: a string that uniquely identifies the logical file that the
## data is a part of and describes its source.
##
## size: the number of bytes that comprise the full file.
global set_size: function(source: string, size: count);
## Signals the end of a file.
## Meant for use when providing external file analysis input (e.g.
## from the input framework).
##
## source: a string that uniquely identifies the logical file that the
## data is a part of and describes its source.
global eof: function(source: string);
}
redef record fa_file += {
@ -287,31 +235,6 @@ function stop(f: fa_file): bool
return __stop(f$id);
}
function data_stream(source: string, data: string)
{
__data_stream(source, data);
}
function data_chunk(source: string, data: string, offset: count)
{
__data_chunk(source, data, offset);
}
function gap(source: string, offset: count, len: count)
{
__gap(source, offset, len);
}
function set_size(source: string, size: count)
{
__set_size(source, size);
}
function eof(source: string)
{
__eof(source);
}
event bro_init() &priority=5
{
Log::create_stream(FileAnalysis::LOG,