12.2. myinsmod

If you are feeling raw, you can insert and remove modules with our own minimal module inserter and remover!

# init_module
./linux/myinsmod.out hello.ko
# finit_module
./linux/myinsmod.out hello.ko "" 1
./linux/myrmmod.out hello

which teaches you how it is done from C code.

Source:

The Linux kernel offers two system calls for module insertion:

  • init_module

  • finit_module

and:

man init_module

documents that:

The finit_module() system call is like init_module(), but reads the module to be loaded from the file descriptor fd. It is useful when the authenticity of a kernel module can be determined from its location in the filesystem; in cases where that is possible, the overhead of using cryptographically signed modules to determine the authenticity of a module can be avoided. The param_values argument is as for init_module().

finit is newer and was added only in v3.8. More rationale: https://lwn.net/Articles/519010/