diff options
Diffstat (limited to 'tools/testing/selftests/bpf/verifier/precise.c')
| -rw-r--r-- | tools/testing/selftests/bpf/verifier/precise.c | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/tools/testing/selftests/bpf/verifier/precise.c b/tools/testing/selftests/bpf/verifier/precise.c index 02151f8c940f..6c03a7d805f9 100644 --- a/tools/testing/selftests/bpf/verifier/precise.c +++ b/tools/testing/selftests/bpf/verifier/precise.c @@ -27,18 +27,18 @@ BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 8, 1), BPF_EXIT_INSN(), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=inv(umin=1, umax=8) */ + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=scalar(umin=1, umax=8) */ BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_EMIT_CALL(BPF_FUNC_probe_read), + BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .fixup_map_array_48b = { 1 }, .result = VERBOSE_ACCEPT, .errstr = - "26: (85) call bpf_probe_read#4\ + "26: (85) call bpf_probe_read_kernel#113\ last_idx 26 first_idx 20\ regs=4 stack=0 before 25\ regs=4 stack=0 before 24\ @@ -87,11 +87,11 @@ BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 8, 1), BPF_EXIT_INSN(), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=inv(umin=1, umax=8) */ + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=scalar(umin=1, umax=8) */ BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_EMIT_CALL(BPF_FUNC_probe_read), + BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, @@ -99,7 +99,7 @@ .result = VERBOSE_ACCEPT, .flags = BPF_F_TEST_STATE_FREQ, .errstr = - "26: (85) call bpf_probe_read#4\ + "26: (85) call bpf_probe_read_kernel#113\ last_idx 26 first_idx 22\ regs=4 stack=0 before 25\ regs=4 stack=0 before 24\ @@ -192,3 +192,28 @@ .result = VERBOSE_ACCEPT, .retval = -1, }, +{ + "precise: mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, offsetof(struct xdp_md, ingress_ifindex)), + BPF_LD_MAP_FD(BPF_REG_6, 0), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_MOV64_IMM(BPF_REG_3, 0), + BPF_JMP_IMM(BPF_JEQ, BPF_REG_4, 0, 1), + BPF_MOV64_IMM(BPF_REG_2, 0x1000), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), + BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 42), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .fixup_map_ringbuf = { 1 }, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = BPF_F_TEST_STATE_FREQ, + .errstr = "invalid access to memory, mem_size=1 off=42 size=8", + .result = REJECT, +}, |