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1// SPDX-License-Identifier: GPL-2.02/* Converted from tools/testing/selftests/bpf/verifier/d_path.c */3 4#include <linux/bpf.h>5#include <bpf/bpf_helpers.h>6#include "bpf_misc.h"7 8SEC("fentry/dentry_open")9__description("d_path accept")10__success __retval(0)11__naked void d_path_accept(void)12{13 asm volatile (" \14 r1 = *(u32*)(r1 + 0); \15 r2 = r10; \16 r2 += -8; \17 r6 = 0; \18 *(u64*)(r2 + 0) = r6; \19 r3 = 8 ll; \20 call %[bpf_d_path]; \21 r0 = 0; \22 exit; \23" :24 : __imm(bpf_d_path)25 : __clobber_all);26}27 28SEC("fentry/d_path")29__description("d_path reject")30__failure __msg("helper call is not allowed in probe")31__naked void d_path_reject(void)32{33 asm volatile (" \34 r1 = *(u32*)(r1 + 0); \35 r2 = r10; \36 r2 += -8; \37 r6 = 0; \38 *(u64*)(r2 + 0) = r6; \39 r3 = 8 ll; \40 call %[bpf_d_path]; \41 r0 = 0; \42 exit; \43" :44 : __imm(bpf_d_path)45 : __clobber_all);46}47 48char _license[] SEC("license") = "GPL";49