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// SPDX-License-Identifier: GPL-2.0
#include <test_progs.h>
#include <network_helpers.h>
static void test_l4lb(const char *file)
{
unsigned int nr_cpus = bpf_num_possible_cpus();
struct vip key = {.protocol = 6};
struct vip_meta {
__u32 flags;
__u32 vip_num;
} value = {.vip_num = VIP_NUM};
__u32 stats_key = VIP_NUM;
struct vip_stats {
__u64 bytes;
__u64 pkts;
} stats[nr_cpus];
struct real_definition {
union {
__be32 dst;
__be32 dstv6[4];
};
__u8 flags;
} real_def = {.dst = MAGIC_VAL};
__u32 ch_key = 11, real_num = 3;
int err, i, prog_fd, map_fd;
__u64 bytes = 0, pkts = 0;
struct bpf_object *obj;
char buf[128];
u32 *magic = (u32 *)buf;
LIBBPF_OPTS(bpf_test_run_opts, topts,
.data_out = buf,
.data_size_out = sizeof(buf),
.repeat = NUM_ITER,
);
err = bpf_prog_test_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
if (CHECK_FAIL(err))
return;
map_fd = bpf_find_map(__func__, obj, "vip_map");
if (map_fd < 0)
goto out;
bpf_map_update_elem(map_fd, &key, &value, 0);
map_fd = bpf_find_map(__func__, obj, "ch_rings");
if (map_fd < 0)
goto out;
bpf_map_update_elem(map_fd, &ch_key, &real_num, 0);
map_fd = bpf_find_map(__func__, obj, "reals");
if (map_fd < 0)
goto out;
bpf_map_update_elem(map_fd, &real_num, &real_def, 0);
topts.data_in = &pkt_v4;
topts.data_size_in = sizeof(pkt_v4);
err = bpf_prog_test_run_opts(prog_fd, &topts);
ASSERT_OK(err, "test_run");
ASSERT_EQ(topts.retval, 7 /*TC_ACT_REDIRECT*/, "ipv4 test_run retval");
ASSERT_EQ(topts.data_size_out, 54, "ipv4 test_run data_size_out");
ASSERT_EQ(*magic, MAGIC_VAL, "ipv4 magic");
topts.data_in = &pkt_v6;
topts.data_size_in = sizeof(pkt_v6);
topts.data_size_out = sizeof(buf); /* reset out size */
err = bpf_prog_test_run_opts(prog_fd, &topts);
ASSERT_OK(err, "test_run");
ASSERT_EQ(topts.retval, 7 /*TC_ACT_REDIRECT*/, "ipv6 test_run retval");
ASSERT_EQ(topts.data_size_out, 74, "ipv6 test_run data_size_out");
ASSERT_EQ(*magic, MAGIC_VAL, "ipv6 magic");
map_fd = bpf_find_map(__func__, obj, "stats");
if (map_fd < 0)
goto out;
bpf_map_lookup_elem(map_fd, &stats_key, stats);
for (i = 0; i < nr_cpus; i++) {
bytes += stats[i].bytes;
pkts += stats[i].pkts;
}
if (CHECK_FAIL(bytes != MAGIC_BYTES * NUM_ITER * 2 ||
pkts != NUM_ITER * 2))
printf("test_l4lb:FAIL:stats %lld %lld\n", bytes, pkts);
out:
bpf_object__close(obj);
}
void test_l4lb_all(void)
{
if (test__start_subtest("l4lb_inline"))
test_l4lb("test_l4lb.bpf.o");
if (test__start_subtest("l4lb_noinline"))
test_l4lb("test_l4lb_noinline.bpf.o");
}
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