Added CONTRIBUTING.md

CONTRIBUTING.md

@@ -0,0 +1,44 @@
+# CONTRIBUTING to Laika
+HEAD: https://github.com/CPunch/Laika/tree/main
+
+## Directories explained
+- `/cmake-modules` holds helper functions for CMake.
+- `/lib` is a shared static library between the bot, shell & CNC. LibSodium is also vendor'd here.
+- `/cnc` is the Command aNd Control server. (Currently only targets Linux)
+- `/bot` is the bot client to be ran on the target machine. (Targets both Linux and Windows)
+- `/shell` is the main shell to connect to the CNC server with to issue commands. (Currently only targets Linux)
+- `/tools` holds tools for generating keypairs, etc.
+
+## Tasks and TODOs
+Looking for some simple tasks that need to get done for that sweet 'contributor' cred? Check here!
+
+- Implement `lib/win/winpersist.c`
+- Fix address sanitizer for CMake DEBUG builds
+
+## Lib: Error Handling
+Error handling in Laika is done via the 'lerror.h' header library. It's a small and simple error handling solution written for laika, however can be stripped and used as a simple error handling library. Error handling in Laika is used similarly to other languages, implementing a try & catch block and is achieved using setjmp(). The LAIKA_ERROR(...) is used to throw errors.
+
+Example:
+```C 
+LAIKA_TRY
+    printf("Ran first\n");
+    LAIKA_ERROR("Debug message here\n");
+    printf("You'll never see this\n");
+LAIKA_CATCH
+    printf("Ran second!\n");
+LAIKA_TRYEND
+
+printf("Ran last!\n");
+```
+
+Some minor inconveniences include:
+- `return` or other control-flow statements that leave the current scope cannot be used in the LAIKA_TRY or LAIKA_CATCH scopes.
+- max of 32 depth, avoid using recursively.
+- not thread safe.
+
+## Lib: Task Service
+Tasks can be scheduled on a delta-period (call X function every approximate N seconds). laikaT_pollTasks() is used to check & run any currently queued tasks. This is useful for sending keep-alive packets, polling shell pipes, or other repeatably scheduled tasks. Most laikaT_pollTasks() calls are done in the peerHandler for each client/server.
+
+## Bot: Platform-specific backends
+
+`bot/win` and `bot/lin` include code for platform-specific code that can't be quickly "ifdef"d away. These mainly include stuff like persistence or opening pseudo-ttys.

README.md

@@ -29,15 +29,6 @@ My hope is that this becomes complete enough to be accurate to real RAT sources
 
 I could add some padding to each packet to make it look pseudo-HTTP-like, however I haven't given much thought to this.
 
-## Directories explained
-
-- `/cmake-modules` holds helper functions for CMake.
-- `/lib` is a shared static library between the bot, shell & CNC. LibSodium is also vendor'd here.
-- `/cnc` is the Command aNd Control server. (Currently only targets Linux)
-- `/bot` is the bot client to be ran on the target machine. (Targets both Linux and Windows)
-- `/shell` is the main shell to connect to the CNC server with to issue commands. (Currently only targets Linux)
-- `/tools` holds tools for generating keypairs, etc.
-
 ## CMake Definitions
 
 | Definition        | Description                           | Example                                                                           |
@@ -79,6 +70,10 @@ $ rm -rf bin build &&\
 
 Output binaries are put in the `./bin` folder
 
+## Looking to contribute?
+
+Read `CONTRIBUTING.md`
+
 # Ansible-Playbook
 
-To setup a test VPS for a Laika CNC, check out [this ansible playbook](https://github.com/CPunch/Laika-Playbook).
+To setup a test VPS for a Laika CNC, check out [this ansible playbook](https://github.com/CPunch/Laika-Playbook).

lib/NOTES.md

@@ -3,5 +3,6 @@ There are some unused features and boilerplate. The unused files include:
 - ltunnel.c
 - lbox.h
 - lvm.h
+- lvm.c
 
 These files can be safely removed from the library.