Commit 95fbda1e authored by Stanislav Fomichev's avatar Stanislav Fomichev Committed by Alexei Starovoitov
Browse files

selftests: bpf: Add selftest for __sk_buff tstamp 



Make sure BPF_PROG_TEST_RUN accepts tstamp and exports any
modifications that BPF program does.

Signed-off-by: default avatarStanislav Fomichev <sdf@google.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Acked-by: default avatarMartin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20191015183125.124413-2-sdf@google.com
parent ba940948

tools/testing/selftests/bpf/prog_tests/skb_ctx.c

+5 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ void test_skb_ctx(void) 
		.cb[3] = 4,

		.cb[4] = 5,

		.priority = 6,

		.tstamp = 7,

	};

	struct bpf_prog_test_run_attr tattr = {

		.data_in = &pkt_v4,
@@ -86,4 +87,8 @@ void test_skb_ctx(void) 
		   "ctx_out_priority",

		   "skb->priority == %d, expected %d\n",

		   skb.priority, 7);

	CHECK_ATTR(skb.tstamp != 8,

		   "ctx_out_tstamp",

		   "skb->tstamp == %lld, expected %d\n",

		   skb.tstamp, 8);

}

tools/testing/selftests/bpf/progs/test_skb_ctx.c

+1 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ int process(struct __sk_buff *skb) 
		skb->cb[i]++;

	}

	skb->priority++;

	skb->tstamp++;



	return 0;

}

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