Commit Graph

10 Commits

Author SHA1 Message Date
Mark Stemm
7dbdb00109 Also add endswith to lua parser (#443)
* Also add endswith to lua parser

Add endswith as a symbol so it can be parsed in filter expressions.

* Unit test for endswith support

Add a test case for endswith support, based on the filename ending with null.
2018-10-18 09:59:13 -07:00
Mark Stemm
6445cdb950 Better copyright notices (#426)
* Use correct copyright years.

Also include the start year.

* Improve copyright notices.

Use the proper start year instead of just 2018.

Add the right owner Draios dba Sysdig.

Add copyright notices to some files that were missing them.
2018-09-26 19:49:19 -07:00
Mark Stemm
2352b96d6b Change license to Apache 2.0 (#419)
Replace references to GNU Public License to Apache license in:

 - COPYING file
 - README
 - all source code below falco
 - rules files
 - rules and code below test directory
 - code below falco directory
 - entrypoint for docker containers (but not the Dockerfiles)

I didn't generally add copyright notices to all the examples files, as
they aren't core falco. If they did refer to the gpl I changed them to
apache.
2018-09-20 11:47:10 -07:00
Mark Stemm
ebed9f8dfd Remove trailing newlines from output
If in yaml, the output field is folded-style aka:

output: <
   some multi-line
   output here

The unfolded string will have a trailing newline. Remove it.
2017-08-09 17:53:53 -07:00
Mark Stemm
de520a60fb Allow dots in paths.
Add a dot to the set of characters that can be in a path string.
2017-08-04 11:06:51 -07:00
Mark Stemm
481582ca09 Don't trim quoted strings
When parsing condition expressions, if the type of an ast node is
String (aka quoted string), don't trim whitespace from the value. This
ensures that conditions that want to match exact strings e.g. command
lines with leading/trailing spaces will work properly.

This fixes #253.
2017-06-20 11:47:00 -07:00
Mark Stemm
3e1117d746 Add license comments to all source code.
Add comment blocks to all source code w/ our gpl copyright notice.
2016-10-24 15:56:45 -07:00
Mark Stemm
ae0ba57306 Add the new pmatch operator.
Make changes to the lua-specific rule parser/compiler to handle the
pmatch operator.
2016-10-24 15:56:45 -07:00
Mark Stemm
2fad859600 Parser changes to support new sysdig features
Support "glob" as an operator and allow pathnames to be the index into
bracketed selectors of fields.
2016-10-24 15:56:45 -07:00
Mark Stemm
f547dc97ab Move falco engine to its own library.
Move the c++ and lua code implementing falco engine/falco common to its
own directory userspace/engine. It's compiled as a static library
libfalco_engine.a, and has its own CMakeLists.txt so it can be included
by other projects.

The engine's CMakeLists.txt has a add_subdirectory for the falco rules
directory, so including the engine also builds the rules.

The variables you need to set to use the engine's CMakeLists.txt are:

- CMAKE_INSTALL_PREFIX: the root directory below which everything is
  installed.
- FALCO_ETC_DIR: where to install the rules file.
- FALCO_SHARE_DIR: where to install lua code, relative to the
- install/package root.
- LUAJIT_INCLUDE: where to find header files for lua.
- FALCO_SINSP_LIBRARY: the library containing sinsp code. It will be
- considered a dependency of the engine.
- LPEG_LIB/LYAML_LIB/LIBYAML_LIB: locations for third-party libraries.
- FALCO_COMPONENT: if set, will be included as a part of any install()
  commands.

Instead of specifying /usr/share/falco in config_falco_*.h.in, use
CMAKE_INSTALL_PREFIX and FALCO_SHARE_DIR.

The lua code for the engine has also moved, so the two lua source
directories (userspace/engine/lua and userspace/falco/lua) need to be
available separately via falco_common, so make it an argument to
falco_common::init.

As a part of making it easy to include in another project, also clean up
LPEG build/defs. Modify build-lpeg to add a PREFIX argument to allow for
object files/libraries being in an alternate location, and when building
lpeg, put object files in a build/ subdirectory.
2016-10-24 15:56:45 -07:00