{ "spin_lock: test1 success", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, 0), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = ACCEPT, .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "spin_lock: test2 direct ld/st", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = REJECT, .errstr = "cannot be accessed directly", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "spin_lock: test3 direct ld/st", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, 1), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = REJECT, .errstr = "cannot be accessed directly", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { "spin_lock: test4 direct ld/st", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_6, 3), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = REJECT, .errstr = "cannot be accessed directly", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { "spin_lock: test5 call within a locked region", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = REJECT, .errstr = "calls are not allowed", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "spin_lock: test6 missing unlock", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, 0), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = REJECT, .errstr = "unlock is missing", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "spin_lock: test7 unlock without lock", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, 0), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = REJECT, .errstr = "without taking a lock", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "spin_lock: test8 double lock", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, 0), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = REJECT, .errstr = "calls are not allowed", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "spin_lock: test9 different lock", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_7, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3, 11 }, .result = REJECT, .errstr = "unlock of different lock", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "spin_lock: test10 lock in subprog without unlock", .insns = { BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 1), BPF_EXIT_INSN(), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 3 }, .result = REJECT, .errstr = "unlock is missing", .result_unpriv = REJECT, .errstr_unpriv = "", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "spin_lock: test11 ld_abs under lock", .insns = { BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), BPF_ST_MEM(BPF_W, 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_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_7, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), BPF_LD_ABS(BPF_B, 0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_spin_lock = { 4 }, .result = REJECT, .errstr = "inside bpf_spin_lock", .prog_type = BPF_PROG_TYPE_SCHED_CLS, },