Commit 65428312 authored by Eduard Zingerman's avatar Eduard Zingerman Committed by Alexei Starovoitov
Browse files

selftests/bpf: verifier/meta_access.c converted to inline assembly 



Test verifier/meta_access.c automatically converted to use inline assembly.

Signed-off-by: default avatarEduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20230325025524.144043-31-eddyz87@gmail.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent ade3f08f

tools/testing/selftests/bpf/prog_tests/verifier.c

+2 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include "verifier_map_ptr.skel.h"

#include "verifier_map_ret_val.skel.h"

#include "verifier_masking.skel.h"

#include "verifier_meta_access.skel.h"



__maybe_unused

static void run_tests_aux(const char *skel_name, skel_elf_bytes_fn elf_bytes_factory)
@@ -76,3 +77,4 @@ void test_verifier_leak_ptr(void) { RUN(verifier_leak_ptr); } 
void test_verifier_map_ptr(void)              { RUN(verifier_map_ptr); }

void test_verifier_map_ret_val(void)          { RUN(verifier_map_ret_val); }

void test_verifier_masking(void)              { RUN(verifier_masking); }

void test_verifier_meta_access(void)          { RUN(verifier_meta_access); }

tools/testing/selftests/bpf/progs/verifier_meta_access.c

0 → 100644
+284 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/* Converted from tools/testing/selftests/bpf/verifier/meta_access.c */



#include <linux/bpf.h>

#include <bpf/bpf_helpers.h>

#include "bpf_misc.h"



SEC("xdp")

__description("meta access, test1")

__success __retval(0)

__naked void meta_access_test1(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r0 = r2;					\

	r0 += 8;					\

	if r0 > r3 goto l0_%=;				\

	r0 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test2")

__failure __msg("invalid access to packet, off=-8")

__naked void meta_access_test2(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r0 = r2;					\

	r0 -= 8;					\

	r4 = r2;					\

	r4 += 8;					\

	if r4 > r3 goto l0_%=;				\

	r0 = *(u8*)(r0 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test3")

__failure __msg("invalid access to packet")

__naked void meta_access_test3(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\

	r0 = r2;					\

	r0 += 8;					\

	if r0 > r3 goto l0_%=;				\

	r0 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test4")

__failure __msg("invalid access to packet")

__naked void meta_access_test4(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\

	r4 = *(u32*)(r1 + %[xdp_md_data]);		\

	r0 = r4;					\

	r0 += 8;					\

	if r0 > r3 goto l0_%=;				\

	r0 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test5")

__failure __msg("R3 !read_ok")

__naked void meta_access_test5(void)

{

	asm volatile ("					\

	r3 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r4 = *(u32*)(r1 + %[xdp_md_data]);		\

	r0 = r3;					\

	r0 += 8;					\

	if r0 > r4 goto l0_%=;				\

	r2 = -8;					\

	call %[bpf_xdp_adjust_meta];			\

	r0 = *(u8*)(r3 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm(bpf_xdp_adjust_meta),

	  __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test6")

__failure __msg("invalid access to packet")

__naked void meta_access_test6(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r0 = r3;					\

	r0 += 8;					\

	r4 = r2;					\

	r4 += 8;					\

	if r4 > r0 goto l0_%=;				\

	r0 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test7")

__success __retval(0)

__naked void meta_access_test7(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r0 = r3;					\

	r0 += 8;					\

	r4 = r2;					\

	r4 += 8;					\

	if r4 > r3 goto l0_%=;				\

	r0 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test8")

__success __retval(0)

__naked void meta_access_test8(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r4 = r2;					\

	r4 += 0xFFFF;					\

	if r4 > r3 goto l0_%=;				\

	r0 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test9")

__failure __msg("invalid access to packet")

__naked void meta_access_test9(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r4 = r2;					\

	r4 += 0xFFFF;					\

	r4 += 1;					\

	if r4 > r3 goto l0_%=;				\

	r0 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test10")

__failure __msg("invalid access to packet")

__naked void meta_access_test10(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r4 = *(u32*)(r1 + %[xdp_md_data_end]);		\

	r5 = 42;					\

	r6 = 24;					\

	*(u64*)(r10 - 8) = r5;				\

	lock *(u64 *)(r10 - 8) += r6;			\

	r5 = *(u64*)(r10 - 8);				\

	if r5 > 100 goto l0_%=;				\

	r3 += r5;					\

	r5 = r3;					\

	r6 = r2;					\

	r6 += 8;					\

	if r6 > r5 goto l0_%=;				\

	r2 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test11")

__success __retval(0)

__naked void meta_access_test11(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r5 = 42;					\

	r6 = 24;					\

	*(u64*)(r10 - 8) = r5;				\

	lock *(u64 *)(r10 - 8) += r6;			\

	r5 = *(u64*)(r10 - 8);				\

	if r5 > 100 goto l0_%=;				\

	r2 += r5;					\

	r5 = r2;					\

	r6 = r2;					\

	r6 += 8;					\

	if r6 > r3 goto l0_%=;				\

	r5 = *(u8*)(r5 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



SEC("xdp")

__description("meta access, test12")

__success __retval(0)

__naked void meta_access_test12(void)

{

	asm volatile ("					\

	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\

	r3 = *(u32*)(r1 + %[xdp_md_data]);		\

	r4 = *(u32*)(r1 + %[xdp_md_data_end]);		\

	r5 = r3;					\

	r5 += 16;					\

	if r5 > r4 goto l0_%=;				\

	r0 = *(u8*)(r3 + 0);				\

	r5 = r2;					\

	r5 += 16;					\

	if r5 > r3 goto l0_%=;				\

	r0 = *(u8*)(r2 + 0);				\

l0_%=:	r0 = 0;						\

	exit;						\

"	:

	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),

	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),

	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))

	: __clobber_all);

}



char _license[] SEC("license") = "GPL";

tools/testing/selftests/bpf/verifier/meta_access.c

deleted100644 → 0
+0 −235
Original line number Diff line number Diff line 
{

	"meta access, test1",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = ACCEPT,

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test2",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),

	BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 8),

	BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = REJECT,

	.errstr = "invalid access to packet, off=-8",

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test3",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,

		    offsetof(struct xdp_md, data_end)),

	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = REJECT,

	.errstr = "invalid access to packet",

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test4",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,

		    offsetof(struct xdp_md, data_end)),

	BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = REJECT,

	.errstr = "invalid access to packet",

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test5",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_4, 3),

	BPF_MOV64_IMM(BPF_REG_2, -8),

	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_xdp_adjust_meta),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = REJECT,

	.errstr = "R3 !read_ok",

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test6",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),

	BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = REJECT,

	.errstr = "invalid access to packet",

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test7",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),

	BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = ACCEPT,

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test8",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0xFFFF),

	BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = ACCEPT,

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test9",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0xFFFF),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),

	BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = REJECT,

	.errstr = "invalid access to packet",

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test10",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,

		    offsetof(struct xdp_md, data_end)),

	BPF_MOV64_IMM(BPF_REG_5, 42),

	BPF_MOV64_IMM(BPF_REG_6, 24),

	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_5, -8),

	BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_10, BPF_REG_6, -8),

	BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -8),

	BPF_JMP_IMM(BPF_JGT, BPF_REG_5, 100, 6),

	BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_5),

	BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),

	BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_5, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = REJECT,

	.errstr = "invalid access to packet",

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test11",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_MOV64_IMM(BPF_REG_5, 42),

	BPF_MOV64_IMM(BPF_REG_6, 24),

	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_5, -8),

	BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_10, BPF_REG_6, -8),

	BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -8),

	BPF_JMP_IMM(BPF_JGT, BPF_REG_5, 100, 6),

	BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_5),

	BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),

	BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),

	BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_5, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = ACCEPT,

	.prog_type = BPF_PROG_TYPE_XDP,

},

{

	"meta access, test12",

	.insns = {

	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,

		    offsetof(struct xdp_md, data_meta)),

	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),

	BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,

		    offsetof(struct xdp_md, data_end)),

	BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 16),

	BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 5),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 0),

	BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),

	BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 16),

	BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 1),

	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),

	BPF_MOV64_IMM(BPF_REG_0, 0),

	BPF_EXIT_INSN(),

	},

	.result = ACCEPT,

	.prog_type = BPF_PROG_TYPE_XDP,

},