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Diffstat (limited to 'tools/testing/selftests/bpf/verifier/basic_instr.c')
-rw-r--r--tools/testing/selftests/bpf/verifier/basic_instr.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/basic_instr.c b/tools/testing/selftests/bpf/verifier/basic_instr.c
new file mode 100644
index 000000000000..ed91a7b9a456
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic_instr.c
@@ -0,0 +1,134 @@
+{
+ "add+sub+mul",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_1, 1),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2),
+ BPF_MOV64_IMM(BPF_REG_2, 3),
+ BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = -3,
+},
+{
+ "xor32 zero extend check",
+ .insns = {
+ BPF_MOV32_IMM(BPF_REG_2, -1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 32),
+ BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 0xffff),
+ BPF_ALU32_REG(BPF_XOR, BPF_REG_2, BPF_REG_2),
+ BPF_MOV32_IMM(BPF_REG_0, 2),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+ BPF_MOV32_IMM(BPF_REG_0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+ .retval = 1,
+},
+{
+ "arsh32 on imm",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_ALU32_IMM(BPF_ARSH, BPF_REG_0, 5),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 0,
+},
+{
+ "arsh32 on imm 2",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 0x1122334485667788),
+ BPF_ALU32_IMM(BPF_ARSH, BPF_REG_0, 7),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = -16069393,
+},
+{
+ "arsh32 on reg",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 5),
+ BPF_ALU32_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 0,
+},
+{
+ "arsh32 on reg 2",
+ .insns = {
+ BPF_LD_IMM64(BPF_REG_0, 0xffff55667788),
+ BPF_MOV64_IMM(BPF_REG_1, 15),
+ BPF_ALU32_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 43724,
+},
+{
+ "arsh64 on imm",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_ALU64_IMM(BPF_ARSH, BPF_REG_0, 5),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "arsh64 on reg",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1),
+ BPF_MOV64_IMM(BPF_REG_1, 5),
+ BPF_ALU64_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+},
+{
+ "invalid 64-bit BPF_END",
+ .insns = {
+ BPF_MOV32_IMM(BPF_REG_0, 0),
+ {
+ .code = BPF_ALU64 | BPF_END | BPF_TO_LE,
+ .dst_reg = BPF_REG_0,
+ .src_reg = 0,
+ .off = 0,
+ .imm = 32,
+ },
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "unknown opcode d7",
+ .result = REJECT,
+},
+{
+ "mov64 src == dst",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_2),
+ // Check bounds are OK
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+},
+{
+ "mov64 src != dst",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_3, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_3),
+ // Check bounds are OK
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+},