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| {
| "bpf_map_ptr: read with negative offset rejected",
| .insns = {
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
| BPF_LD_MAP_FD(BPF_REG_1, 0),
| BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
| BPF_MOV64_IMM(BPF_REG_0, 1),
| BPF_EXIT_INSN(),
| },
| .fixup_map_array_48b = { 1 },
| .result_unpriv = REJECT,
| .errstr_unpriv = "bpf_array access is allowed only to CAP_PERFMON and CAP_SYS_ADMIN",
| .result = REJECT,
| .errstr = "R1 is bpf_array invalid negative access: off=-8",
| },
| {
| "bpf_map_ptr: write rejected",
| .insns = {
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
| BPF_LD_MAP_FD(BPF_REG_1, 0),
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0),
| BPF_MOV64_IMM(BPF_REG_0, 1),
| BPF_EXIT_INSN(),
| },
| .fixup_map_array_48b = { 3 },
| .result_unpriv = REJECT,
| .errstr_unpriv = "bpf_array access is allowed only to CAP_PERFMON and CAP_SYS_ADMIN",
| .result = REJECT,
| .errstr = "only read from bpf_array is supported",
| },
| {
| "bpf_map_ptr: read non-existent field rejected",
| .insns = {
| BPF_MOV64_IMM(BPF_REG_6, 0),
| BPF_LD_MAP_FD(BPF_REG_1, 0),
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 1),
| BPF_MOV64_IMM(BPF_REG_0, 1),
| BPF_EXIT_INSN(),
| },
| .fixup_map_array_48b = { 1 },
| .result_unpriv = REJECT,
| .errstr_unpriv = "bpf_array access is allowed only to CAP_PERFMON and CAP_SYS_ADMIN",
| .result = REJECT,
| .errstr = "cannot access ptr member ops with moff 0 in struct bpf_map with off 1 size 4",
| },
| {
| "bpf_map_ptr: read ops field accepted",
| .insns = {
| BPF_MOV64_IMM(BPF_REG_6, 0),
| BPF_LD_MAP_FD(BPF_REG_1, 0),
| BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
| BPF_MOV64_IMM(BPF_REG_0, 1),
| BPF_EXIT_INSN(),
| },
| .fixup_map_array_48b = { 1 },
| .result_unpriv = REJECT,
| .errstr_unpriv = "bpf_array access is allowed only to CAP_PERFMON and CAP_SYS_ADMIN",
| .result = ACCEPT,
| .retval = 1,
| },
| {
| "bpf_map_ptr: r = 0, map_ptr = map_ptr + r",
| .insns = {
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
| BPF_MOV64_IMM(BPF_REG_0, 0),
| BPF_LD_MAP_FD(BPF_REG_1, 0),
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_0),
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
| BPF_MOV64_IMM(BPF_REG_0, 0),
| BPF_EXIT_INSN(),
| },
| .fixup_map_hash_16b = { 4 },
| .result_unpriv = REJECT,
| .errstr_unpriv = "R1 has pointer with unsupported alu operation",
| .result = ACCEPT,
| },
| {
| "bpf_map_ptr: r = 0, r = r + map_ptr",
| .insns = {
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
| BPF_MOV64_IMM(BPF_REG_1, 0),
| BPF_LD_MAP_FD(BPF_REG_0, 0),
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_0),
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
| BPF_MOV64_IMM(BPF_REG_0, 0),
| BPF_EXIT_INSN(),
| },
| .fixup_map_hash_16b = { 4 },
| .result_unpriv = REJECT,
| .errstr_unpriv = "R0 has pointer with unsupported alu operation",
| .result = ACCEPT,
| },
|
|
