Test verifier/helper_packet_access.c automatically converted to use inline assembly.
Signed-off-by: Eduard Zingerman <eddyz87@xxxxxxxxx>
---
.../selftests/bpf/prog_tests/verifier.c | 2 +
.../bpf/progs/verifier_helper_packet_access.c | 550 ++++++++++++++++++
.../bpf/verifier/helper_packet_access.c | 460 ---------------
3 files changed, 552 insertions(+), 460 deletions(-)
create mode 100644 tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c
delete mode 100644 tools/testing/selftests/bpf/verifier/helper_packet_access.c
diff --git a/tools/testing/selftests/bpf/prog_tests/verifier.c b/tools/testing/selftests/bpf/prog_tests/verifier.c
index 22d7e152c05e..1cd162daf150 100644
--- a/tools/testing/selftests/bpf/prog_tests/verifier.c
+++ b/tools/testing/selftests/bpf/prog_tests/verifier.c
@@ -18,6 +18,7 @@
#include "verifier_div0.skel.h"
#include "verifier_div_overflow.skel.h"
#include "verifier_helper_access_var_len.skel.h"
+#include "verifier_helper_packet_access.skel.h"
__maybe_unused
static void run_tests_aux(const char *skel_name, skel_elf_bytes_fn elf_bytes_factory)
@@ -58,3 +59,4 @@ void test_verifier_direct_stack_access_wraparound(void) { RUN(verifier_direct_st
void test_verifier_div0(void) { RUN(verifier_div0); }
void test_verifier_div_overflow(void) { RUN(verifier_div_overflow); }
void test_verifier_helper_access_var_len(void) { RUN(verifier_helper_access_var_len); }
+void test_verifier_helper_packet_access(void) { RUN(verifier_helper_packet_access); }
diff --git a/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c b/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c
new file mode 100644
index 000000000000..74f5f9cd153d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c
@@ -0,0 +1,550 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/helper_packet_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+ __uint(type, BPF_MAP_TYPE_HASH);
+ __uint(max_entries, 1);
+ __type(key, long long);
+ __type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("xdp")
+__description("helper access to packet: test1, valid packet_ptr range")
+__success __retval(0)
+__naked void test1_valid_packet_ptr_range(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 > r3 goto l0_%=; \
+ r1 = %[map_hash_8b] ll; \
+ r3 = r2; \
+ r4 = 0; \
+ call %[bpf_map_update_elem]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_update_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("helper access to packet: test2, unchecked packet_ptr")
+__failure __msg("invalid access to packet")
+__naked void packet_test2_unchecked_packet_ptr(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = %[map_hash_8b] ll; \
+ call %[bpf_map_lookup_elem]; \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(xdp_md_data, offsetof(struct xdp_md, data))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("helper access to packet: test3, variable add")
+__success __retval(0)
+__naked void to_packet_test3_variable_add(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r4 = r2; \
+ r4 += 8; \
+ if r4 > r3 goto l0_%=; \
+ r5 = *(u8*)(r2 + 0); \
+ r4 = r2; \
+ r4 += r5; \
+ r5 = r4; \
+ r5 += 8; \
+ if r5 > r3 goto l0_%=; \
+ r1 = %[map_hash_8b] ll; \
+ r2 = r4; \
+ call %[bpf_map_lookup_elem]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("helper access to packet: test4, packet_ptr with bad range")
+__failure __msg("invalid access to packet")
+__naked void packet_ptr_with_bad_range_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r4 = r2; \
+ r4 += 4; \
+ if r4 > r3 goto l0_%=; \
+ r0 = 0; \
+ exit; \
+l0_%=: r1 = %[map_hash_8b] ll; \
+ call %[bpf_map_lookup_elem]; \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("helper access to packet: test5, packet_ptr with too short range")
+__failure __msg("invalid access to packet")
+__naked void ptr_with_too_short_range_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r2 += 1; \
+ r4 = r2; \
+ r4 += 7; \
+ if r4 > r3 goto l0_%=; \
+ r1 = %[map_hash_8b] ll; \
+ call %[bpf_map_lookup_elem]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test6, cls valid packet_ptr range")
+__success __retval(0)
+__naked void cls_valid_packet_ptr_range(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r3 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 > r3 goto l0_%=; \
+ r1 = %[map_hash_8b] ll; \
+ r3 = r2; \
+ r4 = 0; \
+ call %[bpf_map_update_elem]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_update_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test7, cls unchecked packet_ptr")
+__failure __msg("invalid access to packet")
+__naked void test7_cls_unchecked_packet_ptr(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r1 = %[map_hash_8b] ll; \
+ call %[bpf_map_lookup_elem]; \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test8, cls variable add")
+__success __retval(0)
+__naked void packet_test8_cls_variable_add(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r3 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r4 = r2; \
+ r4 += 8; \
+ if r4 > r3 goto l0_%=; \
+ r5 = *(u8*)(r2 + 0); \
+ r4 = r2; \
+ r4 += r5; \
+ r5 = r4; \
+ r5 += 8; \
+ if r5 > r3 goto l0_%=; \
+ r1 = %[map_hash_8b] ll; \
+ r2 = r4; \
+ call %[bpf_map_lookup_elem]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test9, cls packet_ptr with bad range")
+__failure __msg("invalid access to packet")
+__naked void packet_ptr_with_bad_range_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r3 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r4 = r2; \
+ r4 += 4; \
+ if r4 > r3 goto l0_%=; \
+ r0 = 0; \
+ exit; \
+l0_%=: r1 = %[map_hash_8b] ll; \
+ call %[bpf_map_lookup_elem]; \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test10, cls packet_ptr with too short range")
+__failure __msg("invalid access to packet")
+__naked void ptr_with_too_short_range_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r3 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r2 += 1; \
+ r4 = r2; \
+ r4 += 7; \
+ if r4 > r3 goto l0_%=; \
+ r1 = %[map_hash_8b] ll; \
+ call %[bpf_map_lookup_elem]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm_addr(map_hash_8b),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test11, cls unsuitable helper 1")
+__failure __msg("helper access to the packet")
+__naked void test11_cls_unsuitable_helper_1(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r3 = r6; \
+ r3 += 7; \
+ if r3 > r7 goto l0_%=; \
+ r2 = 0; \
+ r4 = 42; \
+ r5 = 0; \
+ call %[bpf_skb_store_bytes]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_skb_store_bytes),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test12, cls unsuitable helper 2")
+__failure __msg("helper access to the packet")
+__naked void test12_cls_unsuitable_helper_2(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r3 = r6; \
+ r6 += 8; \
+ if r6 > r7 goto l0_%=; \
+ r2 = 0; \
+ r4 = 4; \
+ call %[bpf_skb_load_bytes]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_skb_load_bytes),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test13, cls helper ok")
+__success __retval(0)
+__naked void packet_test13_cls_helper_ok(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r1 = r6; \
+ r2 = 4; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test14, cls helper ok sub")
+__success __retval(0)
+__naked void test14_cls_helper_ok_sub(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r1 -= 4; \
+ r2 = 4; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test15, cls helper fail sub")
+__failure __msg("invalid access to packet")
+__naked void test15_cls_helper_fail_sub(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r1 -= 12; \
+ r2 = 4; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test16, cls helper fail range 1")
+__failure __msg("invalid access to packet")
+__naked void cls_helper_fail_range_1(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r1 = r6; \
+ r2 = 8; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test17, cls helper fail range 2")
+__failure __msg("R2 min value is negative")
+__naked void cls_helper_fail_range_2(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r1 = r6; \
+ r2 = -9; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test18, cls helper fail range 3")
+__failure __msg("R2 min value is negative")
+__naked void cls_helper_fail_range_3(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r1 = r6; \
+ r2 = %[__imm_0]; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__imm_0, ~0),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test19, cls helper range zero")
+__success __retval(0)
+__naked void test19_cls_helper_range_zero(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r1 = r6; \
+ r2 = 0; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test20, pkt end as input")
+__failure __msg("R1 type=pkt_end expected=fp")
+__naked void test20_pkt_end_as_input(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r1 = r7; \
+ r2 = 4; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test21, wrong reg")
+__failure __msg("invalid access to packet")
+__naked void to_packet_test21_wrong_reg(void)
+{
+ asm volatile (" \
+ r6 = *(u32*)(r1 + %[__sk_buff_data]); \
+ r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \
+ r6 += 1; \
+ r1 = r6; \
+ r1 += 7; \
+ if r1 > r7 goto l0_%=; \
+ r2 = 4; \
+ r3 = 0; \
+ r4 = 0; \
+ r5 = 0; \
+ call %[bpf_csum_diff]; \
+ r0 = 0; \
+l0_%=: exit; \
+" :
+ : __imm(bpf_csum_diff),
+ __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+ __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/verifier/helper_packet_access.c b/tools/testing/selftests/bpf/verifier/helper_packet_access.c
deleted file mode 100644
index ae54587e9829..000000000000
--- a/tools/testing/selftests/bpf/verifier/helper_packet_access.c
+++ /dev/null
@@ -1,460 +0,0 @@
-{
- "helper access to packet: test1, valid packet_ptr range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_update_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 5 },
- .result_unpriv = ACCEPT,
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "helper access to packet: test2, unchecked packet_ptr",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 1 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "helper access to packet: test3, variable add",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- 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, 10),
- BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 11 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "helper access to packet: test4, packet_ptr with bad range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 7 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "helper access to packet: test5, packet_ptr with too short range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 6 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "helper access to packet: test6, cls valid packet_ptr range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_update_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 5 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test7, cls unchecked packet_ptr",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 1 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test8, cls variable add",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- 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, 10),
- BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 11 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test9, cls packet_ptr with bad range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 7 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test10, cls packet_ptr with too short range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_8b = { 6 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test11, cls unsuitable helper 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_4, 42),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_store_bytes),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "helper access to the packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test12, cls unsuitable helper 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_4, 4),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "helper access to the packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test13, cls helper ok",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test14, cls helper ok sub",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test15, cls helper fail sub",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 12),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test16, cls helper fail range 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test17, cls helper fail range 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, -9),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R2 min value is negative",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test18, cls helper fail range 3",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, ~0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R2 min value is negative",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test19, cls helper range zero",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test20, pkt end as input",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R1 type=pkt_end expected=fp",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
-{
- "helper access to packet: test21, wrong reg",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
-},
--
2.40.0
