122 lines
3.8 KiB
C
122 lines
3.8 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_with_cpumap_frags_helpers.skel.h"
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#include "test_xdp_with_cpumap_helpers.skel.h"
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#define IFINDEX_LO 1
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static void test_xdp_with_cpumap_helpers(void)
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{
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struct test_xdp_with_cpumap_helpers *skel;
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struct bpf_prog_info info = {};
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__u32 len = sizeof(info);
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struct bpf_cpumap_val val = {
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.qsize = 192,
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};
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int err, prog_fd, map_fd;
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__u32 idx = 0;
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skel = test_xdp_with_cpumap_helpers__open_and_load();
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if (!ASSERT_OK_PTR(skel, "test_xdp_with_cpumap_helpers__open_and_load"))
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return;
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prog_fd = bpf_program__fd(skel->progs.xdp_redir_prog);
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err = bpf_xdp_attach(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE, NULL);
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if (!ASSERT_OK(err, "Generic attach of program with 8-byte CPUMAP"))
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goto out_close;
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err = bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_SKB_MODE, NULL);
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ASSERT_OK(err, "XDP program detach");
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prog_fd = bpf_program__fd(skel->progs.xdp_dummy_cm);
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map_fd = bpf_map__fd(skel->maps.cpu_map);
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err = bpf_prog_get_info_by_fd(prog_fd, &info, &len);
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if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
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goto out_close;
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val.bpf_prog.fd = prog_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 cpumap entry");
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err = bpf_map_lookup_elem(map_fd, &idx, &val);
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ASSERT_OK(err, "Read cpumap entry");
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ASSERT_EQ(info.id, val.bpf_prog.id, "Match program id to cpumap entry prog_id");
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/* can not attach BPF_XDP_CPUMAP program to a device */
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err = bpf_xdp_attach(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE, NULL);
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if (!ASSERT_NEQ(err, 0, "Attach of BPF_XDP_CPUMAP program"))
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bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_SKB_MODE, NULL);
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val.qsize = 192;
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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_CPUMAP program to cpumap entry");
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/* Try to attach BPF_XDP program with frags to cpumap when we have
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* already loaded a BPF_XDP program on the map
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*/
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idx = 1;
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val.qsize = 192;
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val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_cm_frags);
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err = bpf_map_update_elem(map_fd, &idx, &val, 0);
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ASSERT_NEQ(err, 0, "Add BPF_XDP program with frags to cpumap entry");
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out_close:
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test_xdp_with_cpumap_helpers__destroy(skel);
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}
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static void test_xdp_with_cpumap_frags_helpers(void)
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{
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struct test_xdp_with_cpumap_frags_helpers *skel;
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struct bpf_prog_info info = {};
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__u32 len = sizeof(info);
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struct bpf_cpumap_val val = {
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.qsize = 192,
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};
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int err, frags_prog_fd, map_fd;
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__u32 idx = 0;
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skel = test_xdp_with_cpumap_frags_helpers__open_and_load();
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if (!ASSERT_OK_PTR(skel, "test_xdp_with_cpumap_helpers__open_and_load"))
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return;
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frags_prog_fd = bpf_program__fd(skel->progs.xdp_dummy_cm_frags);
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map_fd = bpf_map__fd(skel->maps.cpu_map);
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err = bpf_prog_get_info_by_fd(frags_prog_fd, &info, &len);
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if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
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goto out_close;
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val.bpf_prog.fd = frags_prog_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 cpumap entry");
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err = bpf_map_lookup_elem(map_fd, &idx, &val);
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ASSERT_OK(err, "Read cpumap entry");
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ASSERT_EQ(info.id, val.bpf_prog.id,
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"Match program id to cpumap entry prog_id");
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/* Try to attach BPF_XDP program to cpumap when we have
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* already loaded a BPF_XDP program with frags on the map
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*/
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idx = 1;
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val.qsize = 192;
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val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_cm);
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err = bpf_map_update_elem(map_fd, &idx, &val, 0);
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ASSERT_NEQ(err, 0, "Add BPF_XDP program to cpumap entry");
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out_close:
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test_xdp_with_cpumap_frags_helpers__destroy(skel);
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}
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void serial_test_xdp_cpumap_attach(void)
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{
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if (test__start_subtest("CPUMAP with programs in entries"))
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test_xdp_with_cpumap_helpers();
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if (test__start_subtest("CPUMAP with frags programs in entries"))
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test_xdp_with_cpumap_frags_helpers();
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}
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