101 lines
1.9 KiB
C
101 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Converted from tools/testing/selftests/bpf/verifier/cfg.c */
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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#include "bpf_misc.h"
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SEC("socket")
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__description("unreachable")
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__failure __msg("unreachable")
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__failure_unpriv
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__naked void unreachable(void)
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{
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asm volatile (" \
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exit; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("socket")
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__description("unreachable2")
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__failure __msg("unreachable")
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__failure_unpriv
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__naked void unreachable2(void)
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{
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asm volatile (" \
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goto l0_%=; \
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goto l0_%=; \
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l0_%=: exit; \
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" ::: __clobber_all);
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}
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SEC("socket")
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__description("out of range jump")
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__failure __msg("jump out of range")
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__failure_unpriv
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__naked void out_of_range_jump(void)
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{
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asm volatile (" \
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goto l0_%=; \
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exit; \
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l0_%=: \
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" ::: __clobber_all);
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}
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SEC("socket")
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__description("out of range jump2")
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__failure __msg("jump out of range")
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__failure_unpriv
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__naked void out_of_range_jump2(void)
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{
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asm volatile (" \
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goto -2; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("socket")
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__description("loop (back-edge)")
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__failure __msg("unreachable insn 1")
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__msg_unpriv("back-edge")
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__naked void loop_back_edge(void)
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{
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asm volatile (" \
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l0_%=: goto l0_%=; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("socket")
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__description("loop2 (back-edge)")
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__failure __msg("unreachable insn 4")
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__msg_unpriv("back-edge")
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__naked void loop2_back_edge(void)
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{
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asm volatile (" \
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l0_%=: r1 = r0; \
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r2 = r0; \
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r3 = r0; \
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goto l0_%=; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("socket")
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__description("conditional loop")
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__failure __msg("infinite loop detected")
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__msg_unpriv("back-edge")
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__naked void conditional_loop(void)
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{
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asm volatile (" \
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r0 = r1; \
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l0_%=: r2 = r0; \
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r3 = r0; \
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if r1 == 0 goto l0_%=; \
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exit; \
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" ::: __clobber_all);
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}
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char _license[] SEC("license") = "GPL";
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