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Diffstat (limited to 'tools/testing/selftests/bpf/verifier/cfg.c')
-rw-r--r--tools/testing/selftests/bpf/verifier/cfg.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/cfg.c b/tools/testing/selftests/bpf/verifier/cfg.c
new file mode 100644
index 000000000000..349c0862fb4c
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/cfg.c
@@ -0,0 +1,70 @@
+{
+ "unreachable",
+ .insns = {
+ BPF_EXIT_INSN(),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "unreachable",
+ .result = REJECT,
+},
+{
+ "unreachable2",
+ .insns = {
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "unreachable",
+ .result = REJECT,
+},
+{
+ "out of range jump",
+ .insns = {
+ BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "jump out of range",
+ .result = REJECT,
+},
+{
+ "out of range jump2",
+ .insns = {
+ BPF_JMP_IMM(BPF_JA, 0, 0, -2),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "jump out of range",
+ .result = REJECT,
+},
+{
+ "loop (back-edge)",
+ .insns = {
+ BPF_JMP_IMM(BPF_JA, 0, 0, -1),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "back-edge",
+ .result = REJECT,
+},
+{
+ "loop2 (back-edge)",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+ BPF_JMP_IMM(BPF_JA, 0, 0, -4),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "back-edge",
+ .result = REJECT,
+},
+{
+ "conditional loop",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "back-edge",
+ .result = REJECT,
+},