88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
#include <test_progs.h>
|
||
|
|
|
||
|
|
#define IFINDEX_LO 1
|
||
|
|
#define XDP_FLAGS_REPLACE (1U << 4)
|
||
|
|
|
||
|
|
void serial_test_xdp_attach(void)
|
||
|
|
{
|
||
|
|
__u32 duration = 0, id1, id2, id0 = 0, len;
|
||
|
|
struct bpf_object *obj1, *obj2, *obj3;
|
||
|
|
const char *file = "./test_xdp.bpf.o";
|
||
|
|
struct bpf_prog_info info = {};
|
||
|
|
int err, fd1, fd2, fd3;
|
||
|
|
LIBBPF_OPTS(bpf_xdp_attach_opts, opts);
|
||
|
|
|
||
|
|
len = sizeof(info);
|
||
|
|
|
||
|
|
err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj1, &fd1);
|
||
|
|
if (CHECK_FAIL(err))
|
||
|
|
return;
|
||
|
|
err = bpf_prog_get_info_by_fd(fd1, &info, &len);
|
||
|
|
if (CHECK_FAIL(err))
|
||
|
|
goto out_1;
|
||
|
|
id1 = info.id;
|
||
|
|
|
||
|
|
err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj2, &fd2);
|
||
|
|
if (CHECK_FAIL(err))
|
||
|
|
goto out_1;
|
||
|
|
|
||
|
|
memset(&info, 0, sizeof(info));
|
||
|
|
err = bpf_prog_get_info_by_fd(fd2, &info, &len);
|
||
|
|
if (CHECK_FAIL(err))
|
||
|
|
goto out_2;
|
||
|
|
id2 = info.id;
|
||
|
|
|
||
|
|
err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj3, &fd3);
|
||
|
|
if (CHECK_FAIL(err))
|
||
|
|
goto out_2;
|
||
|
|
|
||
|
|
err = bpf_xdp_attach(IFINDEX_LO, fd1, XDP_FLAGS_REPLACE, &opts);
|
||
|
|
if (CHECK(err, "load_ok", "initial load failed"))
|
||
|
|
goto out_close;
|
||
|
|
|
||
|
|
err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
|
||
|
|
if (CHECK(err || id0 != id1, "id1_check",
|
||
|
|
"loaded prog id %u != id1 %u, err %d", id0, id1, err))
|
||
|
|
goto out_close;
|
||
|
|
|
||
|
|
err = bpf_xdp_attach(IFINDEX_LO, fd2, XDP_FLAGS_REPLACE, &opts);
|
||
|
|
if (CHECK(!err, "load_fail", "load with expected id didn't fail"))
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
opts.old_prog_fd = fd1;
|
||
|
|
err = bpf_xdp_attach(IFINDEX_LO, fd2, 0, &opts);
|
||
|
|
if (CHECK(err, "replace_ok", "replace valid old_fd failed"))
|
||
|
|
goto out;
|
||
|
|
err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
|
||
|
|
if (CHECK(err || id0 != id2, "id2_check",
|
||
|
|
"loaded prog id %u != id2 %u, err %d", id0, id2, err))
|
||
|
|
goto out_close;
|
||
|
|
|
||
|
|
err = bpf_xdp_attach(IFINDEX_LO, fd3, 0, &opts);
|
||
|
|
if (CHECK(!err, "replace_fail", "replace invalid old_fd didn't fail"))
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
err = bpf_xdp_detach(IFINDEX_LO, 0, &opts);
|
||
|
|
if (CHECK(!err, "remove_fail", "remove invalid old_fd didn't fail"))
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
opts.old_prog_fd = fd2;
|
||
|
|
err = bpf_xdp_detach(IFINDEX_LO, 0, &opts);
|
||
|
|
if (CHECK(err, "remove_ok", "remove valid old_fd failed"))
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
|
||
|
|
if (CHECK(err || id0 != 0, "unload_check",
|
||
|
|
"loaded prog id %u != 0, err %d", id0, err))
|
||
|
|
goto out_close;
|
||
|
|
out:
|
||
|
|
bpf_xdp_detach(IFINDEX_LO, 0, NULL);
|
||
|
|
out_close:
|
||
|
|
bpf_object__close(obj3);
|
||
|
|
out_2:
|
||
|
|
bpf_object__close(obj2);
|
||
|
|
out_1:
|
||
|
|
bpf_object__close(obj1);
|
||
|
|
}
|