initial

.gitignore

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+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+*.skprx
+*.suprx
+*.self
+*eboot.bin
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+build/

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.20)
+
+if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
+  if(DEFINED ENV{VITASDK})
+    set(CMAKE_TOOLCHAIN_FILE "$ENV{VITASDK}/share/vita.toolchain.cmake" CACHE PATH "toolchain file")
+  else()
+    message(FATAL_ERROR "Please define VITASDK to point to your SDK path!")
+  endif()
+endif()
+
+project(CatLog LANGUAGES C)
+include("$ENV{VITASDK}/share/vita.cmake" REQUIRED)
+
+add_subdirectory(kernel_module)
+add_subdirectory(user_module)

README.md

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+Cat-A-Log
+---
+
+PlayStation® Vita™ network logging plugin
+
+## Installation:
+
+1. Copy both skprx/suprx into `ur0:tai`
+2. Add `ur0:tai/catlog.skprx` under `*KERNEL` in `ur0:tai/config.txt`
+3. Add `ur0:tai/catlog.suprx` under `*NPXS10015` in `ur0:tai/config.txt`
+4. Reboot
+5. On linux run `nc -kl <port>` (on windows you can use https://github.com/TeamFAPS/PSVita-RE-tools/blob/master/PrincessLog/build/NetDbgLogPc.exe <port>)
+6. Open `Settings` app -> `Network` -> `Cat Log settings` and adjust settings for your target pc.
+
+## Logging in homebrew
+* Kernel: ksceKernelPrintf, etc.
+* User: sceClibPrintf or printf
+
+## Credits
+* [Princess-of-Sleeping](https://github.com/Princess-of-Sleeping), [cuevavirus](https://git.shotatoshounenwachigau.moe/) - PrincessLog
+* [SKGleba](https://github.com/SKGleba) - settings menu idea and injection code
+* CBPS

include/catlog.h

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+#ifndef CATLOG_H
+#define CATLOG_H
+
+#include <stdint.h>
+
+typedef struct {
+    uint32_t host;
+    uint16_t port;
+    uint16_t loglevel;
+} CatLogConfig_t;
+
+int CatLogReadConfig(uint32_t* host, uint16_t* port, uint16_t* level);
+int CatLogUpdateConfig(uint32_t host, uint16_t port, uint16_t level);
+
+#endif // CATLOG_H

kernel_module/CMakeLists.txt

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+set(ELF catlog.elf)
+set(SELF catlog.skprx)
+set(LIB CatLog_stub)
+set(LIB_FILE "lib${LIB}.a")
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostdlib -Wall -Wextra -O3 -std=gnu99")
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -nostdlib")
+
+add_executable("${ELF}"
+  src/main.c
+  src/ringbuf.c
+)
+
+target_include_directories("${ELF}"
+  PRIVATE "${CMAKE_SOURCE_DIR}/include"
+)
+
+target_link_libraries("${ELF}"
+  gcc
+
+  taihenForKernel_stub
+  taihenModuleUtils_stub
+  SceSysmemForDriver_stub
+  SceSysclibForDriver_stub
+  SceSysrootForKernel_stub
+  SceKernelUtilsForDriver_stub
+
+  SceNetPsForDriver_stub
+  SceSblSsMgrForDriver_stub
+  SceThreadmgrForDriver_stub
+  SceSblACMgrForDriver_stub
+
+  SceQafMgrForDriver_stub
+
+  SceModulemgrForDriver_stub
+  SceIofilemgrForDriver_stub
+  SceDebugForDriver_stub
+)
+
+vita_create_self("${SELF}"
+  "${ELF}"
+  CONFIG exports.yml
+  UNSAFE
+)
+
+vita_create_stubs(stubs
+  "${ELF}"
+  exports.yml
+  KERNEL
+)
+
+add_library("${LIB}" STATIC IMPORTED GLOBAL)
+
+add_dependencies("${LIB}" stubs)
+
+set_target_properties("${LIB}" PROPERTIES
+  IMPORTED_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/stubs/${LIB_FILE}"
+)

kernel_module/exports.yml

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+CatLog:
+  attributes: 0
+  version:
+    major: 1
+    minor: 0
+  main:
+    start: module_start
+  libraries:
+    CatLog:
+      syscall: true
+      functions:
+        - CatLogReadConfig
+        - CatLogUpdateConfig