--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <netinet/in.h>
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <asm/types.h>
+#include <linux/netlink.h>
+
+#include "fdpass.h"
+
+
+static void receive_argument(int control_fd, unsigned int *value)
+{
+ if (recv(control_fd, value, sizeof(unsigned int), 0) != sizeof(unsigned int)) {
+ fprintf(stderr, "receiving argument failed\n");
+ exit(-1);
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ int control_channel_fd, magic_socket;
+ struct sockaddr_nl addr;
+ unsigned int pid = 0;
+ unsigned int gmask = 1;
+
+ if (argc < 3) {
+ printf("This script is called by vsys.\n");
+ exit(1);
+ }
+
+ control_channel_fd = atoi(argv[2]);
+
+ /* receive pid paramater */
+ receive_argument(control_channel_fd, &pid);
+
+ /* receive gmask paramater */
+ receive_argument(control_channel_fd, &gmask);
+
+ magic_socket = receive_fd(control_channel_fd);
+ if (magic_socket == -1) {
+ fprintf(stderr, "Error creating socket: %d\n", errno);
+ exit(1);
+ }
+
+ memset(&addr, 0, sizeof(struct sockaddr_nl));
+ addr.nl_family = AF_NETLINK;
+ addr.nl_pid = pid;
+ addr.nl_groups = gmask;
+ if (bind(magic_socket, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+ fprintf(stderr, "Error calling bind for AF_NETLINK: %d\n", errno);
+ exit(1);
+ }
+
+ send_fd(control_channel_fd, magic_socket);
+}