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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
#include <test_progs.h>
#include <network_helpers.h>
#include "type_cast.skel.h"
static void test_xdp(void)
{
struct type_cast *skel;
int err, prog_fd;
char buf[128];
LIBBPF_OPTS(bpf_test_run_opts, topts,
.data_in = &pkt_v4,
.data_size_in = sizeof(pkt_v4),
.data_out = buf,
.data_size_out = sizeof(buf),
.repeat = 1,
);
skel = type_cast__open();
if (!ASSERT_OK_PTR(skel, "skel_open"))
return;
bpf_program__set_autoload(skel->progs.md_xdp, true);
err = type_cast__load(skel);
if (!ASSERT_OK(err, "skel_load"))
goto out;
prog_fd = bpf_program__fd(skel->progs.md_xdp);
err = bpf_prog_test_run_opts(prog_fd, &topts);
ASSERT_OK(err, "test_run");
ASSERT_EQ(topts.retval, XDP_PASS, "xdp test_run retval");
ASSERT_EQ(skel->bss->ifindex, 1, "xdp_md ifindex");
ASSERT_EQ(skel->bss->ifindex, skel->bss->ingress_ifindex, "xdp_md ingress_ifindex");
ASSERT_STREQ(skel->bss->name, "lo", "xdp_md name");
ASSERT_NEQ(skel->bss->inum, 0, "xdp_md inum");
out:
type_cast__destroy(skel);
}
static void test_tc(void)
{
struct type_cast *skel;
int err, prog_fd;
LIBBPF_OPTS(bpf_test_run_opts, topts,
.data_in = &pkt_v4,
.data_size_in = sizeof(pkt_v4),
.repeat = 1,
);
skel = type_cast__open();
if (!ASSERT_OK_PTR(skel, "skel_open"))
return;
bpf_program__set_autoload(skel->progs.md_skb, true);
err = type_cast__load(skel);
if (!ASSERT_OK(err, "skel_load"))
goto out;
prog_fd = bpf_program__fd(skel->progs.md_skb);
err = bpf_prog_test_run_opts(prog_fd, &topts);
ASSERT_OK(err, "test_run");
ASSERT_EQ(topts.retval, 0, "tc test_run retval");
ASSERT_EQ(skel->bss->meta_len, 0, "skb meta_len");
ASSERT_EQ(skel->bss->frag0_len, 0, "skb frag0_len");
ASSERT_NEQ(skel->bss->kskb_len, 0, "skb len");
ASSERT_NEQ(skel->bss->kskb2_len, 0, "skb2 len");
ASSERT_EQ(skel->bss->kskb_len, skel->bss->kskb2_len, "skb len compare");
out:
type_cast__destroy(skel);
}
static const char * const negative_tests[] = {
"untrusted_ptr",
"kctx_u64",
};
static void test_negative(void)
{
struct bpf_program *prog;
struct type_cast *skel;
int i, err;
for (i = 0; i < ARRAY_SIZE(negative_tests); i++) {
skel = type_cast__open();
if (!ASSERT_OK_PTR(skel, "skel_open"))
return;
prog = bpf_object__find_program_by_name(skel->obj, negative_tests[i]);
if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
goto out;
bpf_program__set_autoload(prog, true);
err = type_cast__load(skel);
ASSERT_ERR(err, "skel_load");
out:
type_cast__destroy(skel);
}
}
void test_type_cast(void)
{
if (test__start_subtest("xdp"))
test_xdp();
if (test__start_subtest("tc"))
test_tc();
if (test__start_subtest("negative"))
test_negative();
}
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