c871d0e00f
Similarly to subprog/callback logic, enforce return value of BPF program using more precise smin/smax range. We need to adjust a bunch of tests due to a changed format of an error message. Acked-by: Eduard Zingerman <eddyz87@gmail.com> Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20231202175705.885270-7-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Converted from tools/testing/selftests/bpf/verifier/cgroup_inv_retcode.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("cgroup/sock")
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__description("bpf_exit with invalid return code. test1")
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__failure __msg("smin=0 smax=4294967295 should have been in [0, 1]")
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__naked void with_invalid_return_code_test1(void)
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{
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asm volatile (" \
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r0 = *(u32*)(r1 + 0); \
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exit; \
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" ::: __clobber_all);
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}
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SEC("cgroup/sock")
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__description("bpf_exit with invalid return code. test2")
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__success
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__naked void with_invalid_return_code_test2(void)
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{
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asm volatile (" \
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r0 = *(u32*)(r1 + 0); \
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r0 &= 1; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("cgroup/sock")
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__description("bpf_exit with invalid return code. test3")
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__failure __msg("smin=0 smax=3 should have been in [0, 1]")
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__naked void with_invalid_return_code_test3(void)
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{
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asm volatile (" \
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r0 = *(u32*)(r1 + 0); \
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r0 &= 3; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("cgroup/sock")
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__description("bpf_exit with invalid return code. test4")
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__success
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__naked void with_invalid_return_code_test4(void)
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{
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asm volatile (" \
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r0 = 1; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("cgroup/sock")
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__description("bpf_exit with invalid return code. test5")
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__failure __msg("smin=2 smax=2 should have been in [0, 1]")
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__naked void with_invalid_return_code_test5(void)
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{
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asm volatile (" \
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r0 = 2; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("cgroup/sock")
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__description("bpf_exit with invalid return code. test6")
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__failure __msg("R0 is not a known value (ctx)")
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__naked void with_invalid_return_code_test6(void)
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{
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asm volatile (" \
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r0 = r1; \
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exit; \
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" ::: __clobber_all);
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}
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SEC("cgroup/sock")
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__description("bpf_exit with invalid return code. test7")
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__failure __msg("R0 has unknown scalar value should have been in [0, 1]")
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__naked void with_invalid_return_code_test7(void)
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{
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asm volatile (" \
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r0 = *(u32*)(r1 + 0); \
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r2 = *(u32*)(r1 + 4); \
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r0 *= r2; \
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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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