From 40f2fbd5a5e9c6d0799632fcba174a7b45c471da Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Fri, 25 Jan 2019 15:24:43 -0800 Subject: selftests: bpf: break up test_verifier Break up the first 10 kLoC of test verifier test cases out into smaller files. Looks like git line counting gets a little flismy above 16 bit integers, so we need two commits to break up test_verifier. Signed-off-by: Jakub Kicinski Acked-by: Jiong Wang Signed-off-by: Alexei Starovoitov --- .../selftests/bpf/verifier/value_adj_spill.c | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 tools/testing/selftests/bpf/verifier/value_adj_spill.c (limited to 'tools/testing/selftests/bpf/verifier/value_adj_spill.c') diff --git a/tools/testing/selftests/bpf/verifier/value_adj_spill.c b/tools/testing/selftests/bpf/verifier/value_adj_spill.c new file mode 100644 index 000000000000..7135e8021b81 --- /dev/null +++ b/tools/testing/selftests/bpf/verifier/value_adj_spill.c @@ -0,0 +1,43 @@ +{ + "map element value is preserved across register spilling", + .insns = { + BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), + BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), + BPF_LD_MAP_FD(BPF_REG_1, 0), + BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), + BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), + BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), + BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), + BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), + BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), + BPF_EXIT_INSN(), + }, + .fixup_map_hash_48b = { 3 }, + .errstr_unpriv = "R0 leaks addr", + .result = ACCEPT, + .result_unpriv = REJECT, +}, +{ + "map element value or null is marked on register spilling", + .insns = { + BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), + BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), + BPF_LD_MAP_FD(BPF_REG_1, 0), + BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152), + BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), + BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), + BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), + BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), + BPF_EXIT_INSN(), + }, + .fixup_map_hash_48b = { 3 }, + .errstr_unpriv = "R0 leaks addr", + .result = ACCEPT, + .result_unpriv = REJECT, +}, -- cgit