tools/testing/selftests/bpf/verifier/direct_value_access.c

root/tools/testing/selftests/bpf/verifier/direct_value_access.c
{
        "direct map access, write test 1",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = ACCEPT,
        .retval = 1,
},
{
        "direct map access, write test 2",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 8),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = ACCEPT,
        .retval = 1,
},
{
        "direct map access, write test 3",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 8),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = ACCEPT,
        .retval = 1,
},
{
        "direct map access, write test 4",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 40),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = ACCEPT,
        .retval = 1,
},
{
        "direct map access, write test 5",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 32),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = ACCEPT,
        .retval = 1,
},
{
        "direct map access, write test 6",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 40),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, 4, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "R1 min value is outside of the allowed memory range",
        .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
        "direct map access, write test 7",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, -1),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, 4, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid access to map value pointer, value_size=48 off=4294967295",
},
{
        "direct map access, write test 8",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 1),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, -1, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = ACCEPT,
        .retval = 1,
},
{
        "direct map access, write test 9",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 48),
        BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid access to map value pointer",
},
{
        "direct map access, write test 10",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 47),
        BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = ACCEPT,
        .retval = 1,
},
{
        "direct map access, write test 11",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 48),
        BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid access to map value pointer",
},
{
        "direct map access, write test 12",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, (1<<29)),
        BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid access to map value pointer, value_size=48 off=536870912",
},
{
        "direct map access, write test 13",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, (1<<29)-1),
        BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid access to map value pointer, value_size=48 off=536870911",
},
{
        "direct map access, write test 14",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 47),
        BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
        BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
        BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1, 3 },
        .result = ACCEPT,
        .retval = 0xff,
},
{
        "direct map access, write test 15",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
        BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
        BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
        BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1, 3 },
        .result = ACCEPT,
        .retval = 0xffff,
},
{
        "direct map access, write test 16",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
        BPF_LD_MAP_VALUE(BPF_REG_2, 0, 47),
        BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
        BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1, 3 },
        .result = REJECT,
        .errstr = "invalid access to map value, value_size=48 off=47 size=2",
        .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
        "direct map access, write test 17",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
        BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
        BPF_ST_MEM(BPF_H, BPF_REG_2, 1, 0xffff),
        BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1, 3 },
        .result = REJECT,
        .errstr = "invalid access to map value, value_size=48 off=47 size=2",
        .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
        "direct map access, write test 18",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
        BPF_ST_MEM(BPF_H, BPF_REG_1, 0, 42),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_small = { 1 },
        .result = REJECT,
        .errstr = "R1 min value is outside of the allowed memory range",
},
{
        "direct map access, write test 19",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
        BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_small = { 1 },
        .result = ACCEPT,
        .retval = 1,
},
{
        "direct map access, write test 20",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_MAP_VALUE(BPF_REG_1, 0, 1),
        BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_small = { 1 },
        .result = REJECT,
        .errstr = "invalid access to map value pointer",
},
{
        "direct map access, invalid insn test 1",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 0, 1, 0, 47),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid bpf_ld_imm64 insn",
},
{
        "direct map access, invalid insn test 2",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 1, 0, 0, 47),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "BPF_LD_IMM64 uses reserved fields",
},
{
        "direct map access, invalid insn test 3",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, ~0, 0, 0, 47),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "BPF_LD_IMM64 uses reserved fields",
},
{
        "direct map access, invalid insn test 4",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 0, ~0, 0, 47),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid bpf_ld_imm64 insn",
},
{
        "direct map access, invalid insn test 5",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, ~0, ~0, 0, 47),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid bpf_ld_imm64 insn",
},
{
        "direct map access, invalid insn test 6",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, ~0, 0, 0, 0),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "BPF_LD_IMM64 uses reserved fields",
},
{
        "direct map access, invalid insn test 7",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, ~0, 0, 0),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid bpf_ld_imm64 insn",
},
{
        "direct map access, invalid insn test 8",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, ~0, ~0, 0, 0),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "invalid bpf_ld_imm64 insn",
},
{
        "direct map access, invalid insn test 9",
        .insns = {
        BPF_MOV64_IMM(BPF_REG_0, 1),
        BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, 0, 0, 47),
        BPF_EXIT_INSN(),
        },
        .fixup_map_array_48b = { 1 },
        .result = REJECT,
        .errstr = "unrecognized bpf_ld_imm64 insn",
},
Linux
