36246d5a7a
Support for cpumap and devmap entry progs in previous commits means the test needs to be updated for the new semantics. Also take this opportunity to convert it from CHECK macros to the new ASSERT macros. Since xdp_cpumap_attach has no subtest, put the sole test inside the test_xdp_cpumap_attach function. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20210702111825.491065-6-memxor@gmail.com
83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <uapi/linux/bpf.h>
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#include <linux/if_link.h>
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#include <test_progs.h>
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#include "test_xdp_devmap_helpers.skel.h"
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#include "test_xdp_with_devmap_helpers.skel.h"
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#define IFINDEX_LO 1
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void test_xdp_with_devmap_helpers(void)
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{
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struct test_xdp_with_devmap_helpers *skel;
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struct bpf_prog_info info = {};
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struct bpf_devmap_val val = {
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.ifindex = IFINDEX_LO,
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};
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__u32 len = sizeof(info);
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int err, dm_fd, map_fd;
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__u32 idx = 0;
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skel = test_xdp_with_devmap_helpers__open_and_load();
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if (!ASSERT_OK_PTR(skel, "test_xdp_with_devmap_helpers__open_and_load"))
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return;
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dm_fd = bpf_program__fd(skel->progs.xdp_redir_prog);
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err = bpf_set_link_xdp_fd(IFINDEX_LO, dm_fd, XDP_FLAGS_SKB_MODE);
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if (!ASSERT_OK(err, "Generic attach of program with 8-byte devmap"))
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goto out_close;
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err = bpf_set_link_xdp_fd(IFINDEX_LO, -1, XDP_FLAGS_SKB_MODE);
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ASSERT_OK(err, "XDP program detach");
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dm_fd = bpf_program__fd(skel->progs.xdp_dummy_dm);
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map_fd = bpf_map__fd(skel->maps.dm_ports);
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err = bpf_obj_get_info_by_fd(dm_fd, &info, &len);
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if (!ASSERT_OK(err, "bpf_obj_get_info_by_fd"))
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goto out_close;
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val.bpf_prog.fd = dm_fd;
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err = bpf_map_update_elem(map_fd, &idx, &val, 0);
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ASSERT_OK(err, "Add program to devmap entry");
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err = bpf_map_lookup_elem(map_fd, &idx, &val);
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ASSERT_OK(err, "Read devmap entry");
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ASSERT_EQ(info.id, val.bpf_prog.id, "Match program id to devmap entry prog_id");
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/* can not attach BPF_XDP_DEVMAP program to a device */
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err = bpf_set_link_xdp_fd(IFINDEX_LO, dm_fd, XDP_FLAGS_SKB_MODE);
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if (!ASSERT_NEQ(err, 0, "Attach of BPF_XDP_DEVMAP program"))
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bpf_set_link_xdp_fd(IFINDEX_LO, -1, XDP_FLAGS_SKB_MODE);
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val.ifindex = 1;
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val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_prog);
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err = bpf_map_update_elem(map_fd, &idx, &val, 0);
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ASSERT_NEQ(err, 0, "Add non-BPF_XDP_DEVMAP program to devmap entry");
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out_close:
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test_xdp_with_devmap_helpers__destroy(skel);
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}
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void test_neg_xdp_devmap_helpers(void)
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{
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struct test_xdp_devmap_helpers *skel;
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skel = test_xdp_devmap_helpers__open_and_load();
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if (!ASSERT_EQ(skel, NULL,
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"Load of XDP program accessing egress ifindex without attach type")) {
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test_xdp_devmap_helpers__destroy(skel);
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}
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}
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void test_xdp_devmap_attach(void)
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{
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if (test__start_subtest("DEVMAP with programs in entries"))
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test_xdp_with_devmap_helpers();
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if (test__start_subtest("Verifier check of DEVMAP programs"))
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test_neg_xdp_devmap_helpers();
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}
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