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selftests/bpf: fix tests

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Fix tests that assumed no loops.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Alexei Starovoitov
2019-06-15 12:12:22 -07:00
committed by Daniel Borkmann
parent eea1c227b9
commit aeee380ccf
3 changed files with 24 additions and 20 deletions
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11
tools/testing/selftests/bpf/verifier/cfg.c
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@@ -41,7 +41,8 @@
BPF_JMP_IMM(BPF_JA, 0, 0, -1),
BPF_EXIT_INSN(),
},
.errstr = "back-edge",
.errstr = "unreachable insn 1",
.errstr_unpriv = "back-edge",
.result = REJECT,
},
{
@@ -53,18 +54,20 @@
BPF_JMP_IMM(BPF_JA, 0, 0, -4),
BPF_EXIT_INSN(),
},
.errstr = "back-edge",
.errstr = "unreachable insn 4",
.errstr_unpriv = "back-edge",
.result = REJECT,
},
{
"conditional loop",
.insns = {
BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
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",
.errstr = "infinite loop detected",
.errstr_unpriv = "back-edge",
.result = REJECT,
},