111 lines
2.3 KiB
C
111 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* Converted from tools/testing/selftests/bpf/verifier/ld_ind.c */
|
|
|
|
#include <linux/bpf.h>
|
|
#include <bpf/bpf_helpers.h>
|
|
#include "../../../include/linux/filter.h"
|
|
#include "bpf_misc.h"
|
|
|
|
SEC("socket")
|
|
__description("ld_ind: check calling conv, r1")
|
|
__failure __msg("R1 !read_ok")
|
|
__failure_unpriv
|
|
__naked void ind_check_calling_conv_r1(void)
|
|
{
|
|
asm volatile (" \
|
|
r6 = r1; \
|
|
r1 = 1; \
|
|
.8byte %[ld_ind]; \
|
|
r0 = r1; \
|
|
exit; \
|
|
" :
|
|
: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000))
|
|
: __clobber_all);
|
|
}
|
|
|
|
SEC("socket")
|
|
__description("ld_ind: check calling conv, r2")
|
|
__failure __msg("R2 !read_ok")
|
|
__failure_unpriv
|
|
__naked void ind_check_calling_conv_r2(void)
|
|
{
|
|
asm volatile (" \
|
|
r6 = r1; \
|
|
r2 = 1; \
|
|
.8byte %[ld_ind]; \
|
|
r0 = r2; \
|
|
exit; \
|
|
" :
|
|
: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000))
|
|
: __clobber_all);
|
|
}
|
|
|
|
SEC("socket")
|
|
__description("ld_ind: check calling conv, r3")
|
|
__failure __msg("R3 !read_ok")
|
|
__failure_unpriv
|
|
__naked void ind_check_calling_conv_r3(void)
|
|
{
|
|
asm volatile (" \
|
|
r6 = r1; \
|
|
r3 = 1; \
|
|
.8byte %[ld_ind]; \
|
|
r0 = r3; \
|
|
exit; \
|
|
" :
|
|
: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000))
|
|
: __clobber_all);
|
|
}
|
|
|
|
SEC("socket")
|
|
__description("ld_ind: check calling conv, r4")
|
|
__failure __msg("R4 !read_ok")
|
|
__failure_unpriv
|
|
__naked void ind_check_calling_conv_r4(void)
|
|
{
|
|
asm volatile (" \
|
|
r6 = r1; \
|
|
r4 = 1; \
|
|
.8byte %[ld_ind]; \
|
|
r0 = r4; \
|
|
exit; \
|
|
" :
|
|
: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000))
|
|
: __clobber_all);
|
|
}
|
|
|
|
SEC("socket")
|
|
__description("ld_ind: check calling conv, r5")
|
|
__failure __msg("R5 !read_ok")
|
|
__failure_unpriv
|
|
__naked void ind_check_calling_conv_r5(void)
|
|
{
|
|
asm volatile (" \
|
|
r6 = r1; \
|
|
r5 = 1; \
|
|
.8byte %[ld_ind]; \
|
|
r0 = r5; \
|
|
exit; \
|
|
" :
|
|
: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000))
|
|
: __clobber_all);
|
|
}
|
|
|
|
SEC("socket")
|
|
__description("ld_ind: check calling conv, r7")
|
|
__success __success_unpriv __retval(1)
|
|
__naked void ind_check_calling_conv_r7(void)
|
|
{
|
|
asm volatile (" \
|
|
r6 = r1; \
|
|
r7 = 1; \
|
|
.8byte %[ld_ind]; \
|
|
r0 = r7; \
|
|
exit; \
|
|
" :
|
|
: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000))
|
|
: __clobber_all);
|
|
}
|
|
|
|
char _license[] SEC("license") = "GPL";
|