xrp_loader.c

#include <linux/bpf.h>
#include <linux/lirc.h>
#include <linux/input.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <poll.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <fcntl.h>

#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#include <asm/types.h>

int main(int argc, char **argv)
{
	struct bpf_object *obj;
	int ret, progfd;

	if (argc < 2) {
		fprintf(stderr, "Missing ebpf program name\n");
		fprintf(stderr, "Try %s PROG_NAME\n", argv[0]);
		exit(1);
	}

	printf("Loading ebpf %s\n", argv[1]);
	ret = bpf_prog_load(argv[1], BPF_PROG_TYPE_IMPOSTER, &obj, &progfd);
	if (ret) {
		printf("Failed to load bpf program\n");
		exit(1);
	}

	ret = bpf_prog_attach(/*prog_fd=*/progfd, /*target_fd=*/0, BPF_IMPOSTER, 0);
	if (ret) {
		printf("Failed to attach bpf\n");
		exit(1);
	}

	return 0;
}