guysudai1 / journal_kernel_module

Journal Kernel Module

• Project Write Kernel (module) Driver
• Date: 1.1.2020
• Author: Guy Sudai

Description

The kernel driver (/dev/journal) can be written to, read from, opened and released.

• In order to use it, you must use:
  • read(journal_fd, buffer, 1500)
  • write(journal_fd, buffer, <1500)
• This journal can only be opened once.

Installation

1. Run sudo build/remove.sh (In order to remove the previous running kernel module).
2. Use sudo build/create.sh (In order to compile the journal.c file, and insmod the compiled kernel module).
3. Get major number from dmesg with watch -c "dmesg | tail -n 15".
4. Runsudo build/create_dev.sh (In order to create a new /dev/journal char device and change its owner so it can be written to and read from)
5. Have fun.