mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-02 15:18:19 +00:00
afef88e655
BPF object files are, in a way, the final artifact produced as part of the ahead-of-time compilation process. That makes them somewhat special compared to "regular" object files, which are a intermediate build artifacts that can typically be removed safely. As such, it can make sense to name them differently to make it easier to spot this difference at a glance. Among others, libbpf-bootstrap [0] has established the extension .bpf.o for BPF object files. It seems reasonable to follow this example and establish the same denomination for selftest build artifacts. To that end, this change adjusts the corresponding part of the build system and the test programs loading BPF object files to work with .bpf.o files. [0] https://github.com/libbpf/libbpf-bootstrap Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Müller <deso@posteo.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220901222253.1199242-1-deso@posteo.net
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
// 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");
|
|
}
|