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selftests/bpf: Parametrize test_xdp_context_tuntap

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We want to add more test cases to cover different ways to access the
metadata area. Prepare for it. Pull up the skeleton management.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Reviewed-by: Jesse Brandeburg <jbrandeburg@cloudflare.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://patch.msgid.link/20250814-skb-metadata-thru-dynptr-v7-5-8a39e636e0fb@cloudflare.com
This commit is contained in:
Jakub Sitnicki 2025-08-14 11:59:31 +02:00 committed by Martin KaFai Lau
parent 6dfd5e01e1
commit dd9f6cfb4e
1 changed files with 21 additions and 10 deletions
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31
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
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@ -256,12 +256,13 @@ void test_xdp_context_veth(void)
netns_free(tx_ns);
}
void test_xdp_context_tuntap(void)
static void test_tuntap(struct bpf_program *xdp_prog,
struct bpf_program *tc_prog,
struct bpf_map *result_map)
{
LIBBPF_OPTS(bpf_tc_hook, tc_hook, .attach_point = BPF_TC_INGRESS);
LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
struct netns_obj *ns = NULL;
struct test_xdp_meta *skel = NULL;
__u8 packet[sizeof(struct ethhdr) + TEST_PAYLOAD_LEN];
int tap_fd = -1;
int tap_ifindex;
@ -277,10 +278,6 @@ void test_xdp_context_tuntap(void)
SYS(close, "ip link set dev " TAP_NAME " up");
skel = test_xdp_meta__open_and_load();
if (!ASSERT_OK_PTR(skel, "open and load skeleton"))
goto close;
tap_ifindex = if_nametoindex(TAP_NAME);
if (!ASSERT_GE(tap_ifindex, 0, "if_nametoindex"))
goto close;
@ -290,12 +287,12 @@ void test_xdp_context_tuntap(void)
if (!ASSERT_OK(ret, "bpf_tc_hook_create"))
goto close;
tc_opts.prog_fd = bpf_program__fd(skel->progs.ing_cls);
tc_opts.prog_fd = bpf_program__fd(tc_prog);
ret = bpf_tc_attach(&tc_hook, &tc_opts);
if (!ASSERT_OK(ret, "bpf_tc_attach"))
goto close;
ret = bpf_xdp_attach(tap_ifindex, bpf_program__fd(skel->progs.ing_xdp),
ret = bpf_xdp_attach(tap_ifindex, bpf_program__fd(xdp_prog),
0, NULL);
if (!ASSERT_GE(ret, 0, "bpf_xdp_attach"))
goto close;
@ -312,11 +309,25 @@ void test_xdp_context_tuntap(void)
if (!ASSERT_EQ(ret, sizeof(packet), "write packet"))
goto close;
assert_test_result(skel->maps.test_result);
assert_test_result(result_map);
close:
if (tap_fd >= 0)
close(tap_fd);
test_xdp_meta__destroy(skel);
netns_free(ns);
}
void test_xdp_context_tuntap(void)
{
struct test_xdp_meta *skel = NULL;
skel = test_xdp_meta__open_and_load();
if (!ASSERT_OK_PTR(skel, "open and load skeleton"))
return;
if (test__start_subtest("data_meta"))
test_tuntap(skel->progs.ing_xdp, skel->progs.ing_cls,
skel->maps.test_result);
test_xdp_meta__destroy(skel);
}