| { |
| "map in map access", |
| .insns = { |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| BPF_LD_MAP_FD(BPF_REG_1, 0), |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| BPF_MOV64_REG(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_in_map = { 3 }, |
| .result = ACCEPT, |
| }, |
| { |
| "map in map state pruning", |
| .insns = { |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -4), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_6), |
| BPF_LD_MAP_FD(BPF_REG_1, 0), |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| BPF_EXIT_INSN(), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_6), |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 11), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_6), |
| BPF_LD_MAP_FD(BPF_REG_1, 0), |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| BPF_EXIT_INSN(), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_6), |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| BPF_EXIT_INSN(), |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .fixup_map_in_map = { 4, 14 }, |
| .flags = BPF_F_TEST_STATE_FREQ, |
| .result = VERBOSE_ACCEPT, |
| .errstr = "processed 25 insns", |
| .prog_type = BPF_PROG_TYPE_XDP, |
| }, |
| { |
| "invalid inner map pointer", |
| .insns = { |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| BPF_LD_MAP_FD(BPF_REG_1, 0), |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), |
| 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_in_map = { 3 }, |
| .errstr = "R1 pointer arithmetic on map_ptr prohibited", |
| .result = REJECT, |
| }, |
| { |
| "forgot null checking on the inner map pointer", |
| .insns = { |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| BPF_LD_MAP_FD(BPF_REG_1, 0), |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| BPF_MOV64_REG(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_in_map = { 3 }, |
| .errstr = "R1 type=map_value_or_null expected=map_ptr", |
| .result = REJECT, |
| }, |
