Files
linux-kernel-module-cheat/kernel_module/user/myinsmod.c
2017-06-12 06:59:19 +01:00

35 lines
705 B
C

#define _GNU_SOURCE
#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#define init_module(mod, len, opts) syscall(__NR_init_module, mod, len, opts)
int main(int argc, char **argv) {
size_t image_size;
void *image;
int fd;
struct stat st;
if (argc != 2) {
puts("Usage ./prog mymodule.ko");
return EXIT_FAILURE;
}
fd = open(argv[1], O_RDONLY);
fstat(fd, &st);
image_size = st.st_size;
image = malloc(image_size);
read(fd, image, image_size);
close(fd);
if (init_module(image, image_size, "") != 0) {
perror("init_module");
return EXIT_FAILURE;
}
free(image);
return EXIT_SUCCESS;
}