162476cc1SStanislav Fomichev /* SPDX-License-Identifier: GPL-2.0 */ 262476cc1SStanislav Fomichev 362476cc1SStanislav Fomichev #include <sys/socket.h> 462476cc1SStanislav Fomichev #include <bpf/bpf_helpers.h> 562476cc1SStanislav Fomichev get_set_sk_priority(void * ctx)662476cc1SStanislav Fomichevint get_set_sk_priority(void *ctx) 762476cc1SStanislav Fomichev { 862476cc1SStanislav Fomichev int prio; 962476cc1SStanislav Fomichev 1062476cc1SStanislav Fomichev /* Verify that context allows calling bpf_getsockopt and 1162476cc1SStanislav Fomichev * bpf_setsockopt by reading and writing back socket 1262476cc1SStanislav Fomichev * priority. 1362476cc1SStanislav Fomichev */ 1462476cc1SStanislav Fomichev 1562476cc1SStanislav Fomichev if (bpf_getsockopt(ctx, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio))) 1662476cc1SStanislav Fomichev return 0; 1762476cc1SStanislav Fomichev if (bpf_setsockopt(ctx, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio))) 1862476cc1SStanislav Fomichev return 0; 1962476cc1SStanislav Fomichev 2062476cc1SStanislav Fomichev return 1; 2162476cc1SStanislav Fomichev } 22