tools/testing/selftests/bpf/bpf_sockopt_helpers.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2
   3 #include <sys/socket.h>
   4 #include <bpf/bpf_helpers.h>
   5
   6 int get_set_sk_priority(void *ctx)
   7 {
   8         int prio;
   9
  10         /* Verify that context allows calling bpf_getsockopt and
  11          * bpf_setsockopt by reading and writing back socket
  12          * priority.
  13          */
  14
  15         if (bpf_getsockopt(ctx, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
  16                 return 0;
  17         if (bpf_setsockopt(ctx, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
  18                 return 0;
  19
  20         return 1;
  21 }