Contributors: 8
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| David Ahern |
567 |
80.54% |
1 |
11.11% |
| Kumar Kartikeya Dwivedi |
73 |
10.37% |
1 |
11.11% |
| Lorenzo Bianconi |
42 |
5.97% |
1 |
11.11% |
| Andrii Nakryiko |
14 |
1.99% |
2 |
22.22% |
| Ilya Leoshkevich |
4 |
0.57% |
1 |
11.11% |
| Daniel Borkmann |
2 |
0.28% |
1 |
11.11% |
| Hou Tao |
1 |
0.14% |
1 |
11.11% |
| Yucong Sun |
1 |
0.14% |
1 |
11.11% |
| Total |
704 |
|
9 |
|
// SPDX-License-Identifier: GPL-2.0
#include <uapi/linux/bpf.h>
#include <linux/if_link.h>
#include <test_progs.h>
#include "test_xdp_devmap_helpers.skel.h"
#include "test_xdp_with_devmap_frags_helpers.skel.h"
#include "test_xdp_with_devmap_helpers.skel.h"
#define IFINDEX_LO 1
static void test_xdp_with_devmap_helpers(void)
{
struct test_xdp_with_devmap_helpers *skel;
struct bpf_prog_info info = {};
struct bpf_devmap_val val = {
.ifindex = IFINDEX_LO,
};
__u32 len = sizeof(info);
int err, dm_fd, map_fd;
__u32 idx = 0;
skel = test_xdp_with_devmap_helpers__open_and_load();
if (!ASSERT_OK_PTR(skel, "test_xdp_with_devmap_helpers__open_and_load"))
return;
dm_fd = bpf_program__fd(skel->progs.xdp_redir_prog);
err = bpf_xdp_attach(IFINDEX_LO, dm_fd, XDP_FLAGS_SKB_MODE, NULL);
if (!ASSERT_OK(err, "Generic attach of program with 8-byte devmap"))
goto out_close;
err = bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_SKB_MODE, NULL);
ASSERT_OK(err, "XDP program detach");
dm_fd = bpf_program__fd(skel->progs.xdp_dummy_dm);
map_fd = bpf_map__fd(skel->maps.dm_ports);
err = bpf_prog_get_info_by_fd(dm_fd, &info, &len);
if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
goto out_close;
val.bpf_prog.fd = dm_fd;
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_OK(err, "Add program to devmap entry");
err = bpf_map_lookup_elem(map_fd, &idx, &val);
ASSERT_OK(err, "Read devmap entry");
ASSERT_EQ(info.id, val.bpf_prog.id, "Match program id to devmap entry prog_id");
/* can not attach BPF_XDP_DEVMAP program to a device */
err = bpf_xdp_attach(IFINDEX_LO, dm_fd, XDP_FLAGS_SKB_MODE, NULL);
if (!ASSERT_NEQ(err, 0, "Attach of BPF_XDP_DEVMAP program"))
bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_SKB_MODE, NULL);
val.ifindex = 1;
val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_prog);
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_NEQ(err, 0, "Add non-BPF_XDP_DEVMAP program to devmap entry");
/* Try to attach BPF_XDP program with frags to devmap when we have
* already loaded a BPF_XDP program on the map
*/
idx = 1;
val.ifindex = 1;
val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_dm_frags);
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_NEQ(err, 0, "Add BPF_XDP program with frags to devmap entry");
out_close:
test_xdp_with_devmap_helpers__destroy(skel);
}
static void test_neg_xdp_devmap_helpers(void)
{
struct test_xdp_devmap_helpers *skel;
skel = test_xdp_devmap_helpers__open_and_load();
if (!ASSERT_EQ(skel, NULL,
"Load of XDP program accessing egress ifindex without attach type")) {
test_xdp_devmap_helpers__destroy(skel);
}
}
static void test_xdp_with_devmap_frags_helpers(void)
{
struct test_xdp_with_devmap_frags_helpers *skel;
struct bpf_prog_info info = {};
struct bpf_devmap_val val = {
.ifindex = IFINDEX_LO,
};
__u32 len = sizeof(info);
int err, dm_fd_frags, map_fd;
__u32 idx = 0;
skel = test_xdp_with_devmap_frags_helpers__open_and_load();
if (!ASSERT_OK_PTR(skel, "test_xdp_with_devmap_helpers__open_and_load"))
return;
dm_fd_frags = bpf_program__fd(skel->progs.xdp_dummy_dm_frags);
map_fd = bpf_map__fd(skel->maps.dm_ports);
err = bpf_prog_get_info_by_fd(dm_fd_frags, &info, &len);
if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
goto out_close;
val.bpf_prog.fd = dm_fd_frags;
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_OK(err, "Add frags program to devmap entry");
err = bpf_map_lookup_elem(map_fd, &idx, &val);
ASSERT_OK(err, "Read devmap entry");
ASSERT_EQ(info.id, val.bpf_prog.id,
"Match program id to devmap entry prog_id");
/* Try to attach BPF_XDP program to devmap when we have
* already loaded a BPF_XDP program with frags on the map
*/
idx = 1;
val.ifindex = 1;
val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_dm);
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_NEQ(err, 0, "Add BPF_XDP program to devmap entry");
out_close:
test_xdp_with_devmap_frags_helpers__destroy(skel);
}
void serial_test_xdp_devmap_attach(void)
{
if (test__start_subtest("DEVMAP with programs in entries"))
test_xdp_with_devmap_helpers();
if (test__start_subtest("DEVMAP with frags programs in entries"))
test_xdp_with_devmap_frags_helpers();
if (test__start_subtest("Verifier check of DEVMAP programs"))
test_neg_xdp_devmap_helpers();
}