* [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly
@ 2023-03-28 2:08 Eduard Zingerman
2023-03-28 2:08 ` [PATCH bpf-next 1/2] selftests/bpf: " Eduard Zingerman
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Eduard Zingerman @ 2023-03-28 2:08 UTC (permalink / raw)
To: bpf, ast; +Cc: andrii, daniel, martin.lau, kernel-team, yhs, Eduard Zingerman
verifier/xdp_direct_packet_access.c automatically converted to inline
assembly using [1].
This is a leftover from [2], the last patch in a batch was blocked by
mail server for being too long. This patch-set splits it in two:
- one to add migrated test to progs/
- one to remove old test from verifier/
[1] Migration tool
https://github.com/eddyz87/verifier-tests-migrator
[2] First batch of migrated verifier/*.c tests
https://lore.kernel.org/bpf/167979433109.17761.17302808621381963629.git-patchwork-notify@kernel.org/
Eduard Zingerman (2):
selftests/bpf: verifier/xdp_direct_packet_access.c converted to inline
assembly
selftests/bpf: remove verifier/xdp_direct_packet_access.c, converted
to progs/verifier_xdp_direct_packet_access.c
.../selftests/bpf/prog_tests/verifier.c | 2 +
.../progs/verifier_xdp_direct_packet_access.c | 1722 +++++++++++++++++
.../bpf/verifier/xdp_direct_packet_access.c | 1468 --------------
3 files changed, 1724 insertions(+), 1468 deletions(-)
create mode 100644 tools/testing/selftests/bpf/progs/verifier_xdp_direct_packet_access.c
delete mode 100644 tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
--
2.40.0
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH bpf-next 1/2] selftests/bpf: verifier/xdp_direct_packet_access.c converted to inline assembly
2023-03-28 2:08 [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly Eduard Zingerman
@ 2023-03-28 2:08 ` Eduard Zingerman
2023-03-28 2:08 ` [PATCH bpf-next 2/2] selftests/bpf: remove verifier/xdp_direct_packet_access.c, converted to progs/verifier_xdp_direct_packet_access.c Eduard Zingerman
2023-03-28 21:50 ` [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: Eduard Zingerman @ 2023-03-28 2:08 UTC (permalink / raw)
To: bpf, ast; +Cc: andrii, daniel, martin.lau, kernel-team, yhs, Eduard Zingerman
Test verifier/xdp_direct_packet_access.c automatically converted to use inline assembly.
Original test would be removed in the next patch.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
---
.../selftests/bpf/prog_tests/verifier.c | 2 +
.../progs/verifier_xdp_direct_packet_access.c | 1722 +++++++++++++++++
2 files changed, 1724 insertions(+)
create mode 100644 tools/testing/selftests/bpf/progs/verifier_xdp_direct_packet_access.c
diff --git a/tools/testing/selftests/bpf/prog_tests/verifier.c b/tools/testing/selftests/bpf/prog_tests/verifier.c
index a774d5b193f1..efc8cf2e18d0 100644
--- a/tools/testing/selftests/bpf/prog_tests/verifier.c
+++ b/tools/testing/selftests/bpf/prog_tests/verifier.c
@@ -40,6 +40,7 @@
#include "verifier_var_off.skel.h"
#include "verifier_xadd.skel.h"
#include "verifier_xdp.skel.h"
+#include "verifier_xdp_direct_packet_access.skel.h"
__maybe_unused
static void run_tests_aux(const char *skel_name, skel_elf_bytes_fn elf_bytes_factory)
@@ -102,3 +103,4 @@ void test_verifier_value_or_null(void) { RUN(verifier_value_or_null); }
void test_verifier_var_off(void) { RUN(verifier_var_off); }
void test_verifier_xadd(void) { RUN(verifier_xadd); }
void test_verifier_xdp(void) { RUN(verifier_xdp); }
+void test_verifier_xdp_direct_packet_access(void) { RUN(verifier_xdp_direct_packet_access); }
diff --git a/tools/testing/selftests/bpf/progs/verifier_xdp_direct_packet_access.c b/tools/testing/selftests/bpf/progs/verifier_xdp_direct_packet_access.c
new file mode 100644
index 000000000000..df2dfd1b15d1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_xdp_direct_packet_access.c
@@ -0,0 +1,1722 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end mangling, bad access 1")
+__failure __msg("R3 pointer arithmetic on pkt_end")
+__naked void end_mangling_bad_access_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ r3 += 8; \
+ if r1 > r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end mangling, bad access 2")
+__failure __msg("R3 pointer arithmetic on pkt_end")
+__naked void end_mangling_bad_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ r3 -= 8; \
+ if r1 > r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_corner_case_good_access_1(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_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_1_1(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_%=; \
+ r0 = *(u64*)(r1 - 4); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_2_1(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_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+ 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 9; \
+ if r1 > r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 9); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r1 > r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 7); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_pkt_data_good_access_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 > r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u32*)(r1 - 5); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 6; \
+ if r3 > r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 6); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 > r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r3 > r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 7); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 > r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_pkt_end_good_access_1(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_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u32*)(r1 - 5); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_3(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 6; \
+ if r1 < r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 6); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_2_2(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_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_corner_case_good_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r1 < r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 7); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_3(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_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 < r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_1_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 < r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 4); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 < r1 goto l0_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+ 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_4(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 9; \
+ if r3 < r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 9); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_4(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r3 < r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 7); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_pkt_end_good_access_2(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_%=; \
+ r0 = *(u32*)(r1 - 5); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_5(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 6; \
+ if r1 >= r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 6); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_2_3(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_%=; \
+l0_%=: r0 = *(u32*)(r1 - 5); \
+ 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_corner_case_good_access_3(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r1 >= r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 7); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_5(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_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_3(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 >= r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_1_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 >= r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 4); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_3(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 >= r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_6(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 9; \
+ if r3 >= r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 9); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_6(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r3 >= r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 7); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_corner_case_good_access_4(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_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_1_2(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_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 4); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_2_4(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_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_7(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 9; \
+ if r1 <= r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 9); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_7(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r1 <= r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 7); \
+l1_%=: 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_pkt_data_good_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 <= r1 goto l0_%=; \
+ r0 = *(u32*)(r1 - 5); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_8(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 6; \
+ if r3 <= r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 6); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_4(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 <= r1 goto l0_%=; \
+l0_%=: r0 = *(u32*)(r1 - 5); \
+ 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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_4(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r3 <= r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 7); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_8(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 <= r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' > pkt_data, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_5(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 > r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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("XDP pkt read, pkt_meta' > pkt_data, bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_1_3(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 > r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 4); \
+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("XDP pkt read, pkt_meta' > pkt_data, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_5(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 > r3 goto l0_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+ 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("XDP pkt read, pkt_meta' > pkt_data, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_9(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 9; \
+ if r1 > r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 9); \
+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("XDP pkt read, pkt_meta' > pkt_data, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_9(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r1 > r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 7); \
+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("XDP pkt read, pkt_data > pkt_meta', good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_pkt_meta_good_access_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 > r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u32*)(r1 - 5); \
+l1_%=: 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("XDP pkt read, pkt_data > pkt_meta', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_10(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 6; \
+ if r3 > r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 6); \
+l1_%=: 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("XDP pkt read, pkt_data > pkt_meta', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_2_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 > r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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("XDP pkt read, pkt_data > pkt_meta', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_corner_case_good_access_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r3 > r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 7); \
+l1_%=: 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("XDP pkt read, pkt_data > pkt_meta', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_10(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 > r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+l1_%=: 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("XDP pkt read, pkt_meta' < pkt_data, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_pkt_data_good_access_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 < r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u32*)(r1 - 5); \
+l1_%=: 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("XDP pkt read, pkt_meta' < pkt_data, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_11(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 6; \
+ if r1 < r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 6); \
+l1_%=: 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("XDP pkt read, pkt_meta' < pkt_data, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_6(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 < r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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("XDP pkt read, pkt_meta' < pkt_data, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_6(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r1 < r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 7); \
+l1_%=: 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("XDP pkt read, pkt_meta' < pkt_data, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_11(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 < r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+l1_%=: 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("XDP pkt read, pkt_data < pkt_meta', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_corner_case_good_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 < r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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("XDP pkt read, pkt_data < pkt_meta', bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_1_1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 < r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 4); \
+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("XDP pkt read, pkt_data < pkt_meta', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_2_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 < r1 goto l0_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+ 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("XDP pkt read, pkt_data < pkt_meta', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_12(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 9; \
+ if r3 < r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 9); \
+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("XDP pkt read, pkt_data < pkt_meta', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_12(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r3 < r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 7); \
+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("XDP pkt read, pkt_meta' >= pkt_data, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_pkt_data_good_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 >= r3 goto l0_%=; \
+ r0 = *(u32*)(r1 - 5); \
+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("XDP pkt read, pkt_meta' >= pkt_data, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_13(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 6; \
+ if r1 >= r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 6); \
+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("XDP pkt read, pkt_meta' >= pkt_data, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_7(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 >= r3 goto l0_%=; \
+l0_%=: r0 = *(u32*)(r1 - 5); \
+ 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("XDP pkt read, pkt_meta' >= pkt_data, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_7(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r1 >= r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 7); \
+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("XDP pkt read, pkt_meta' >= pkt_data, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_13(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 >= r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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("XDP pkt read, pkt_data >= pkt_meta', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_corner_case_good_access_3(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 >= r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+l1_%=: 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("XDP pkt read, pkt_data >= pkt_meta', bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_1_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 >= r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 4); \
+l1_%=: 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("XDP pkt read, pkt_data >= pkt_meta', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_2_3(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 >= r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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("XDP pkt read, pkt_data >= pkt_meta', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_14(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 9; \
+ if r3 >= r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 9); \
+l1_%=: 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("XDP pkt read, pkt_data >= pkt_meta', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_14(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r3 >= r1 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 7); \
+l1_%=: 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("XDP pkt read, pkt_meta' <= pkt_data, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_8(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 <= r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 8); \
+l1_%=: 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("XDP pkt read, pkt_meta' <= pkt_data, bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_1_4(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 <= r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 4); \
+l1_%=: 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("XDP pkt read, pkt_meta' <= pkt_data, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_8(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r1 <= r3 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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("XDP pkt read, pkt_meta' <= pkt_data, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_15(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 9; \
+ if r1 <= r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 9); \
+l1_%=: 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("XDP pkt read, pkt_meta' <= pkt_data, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_15(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r1 <= r3 goto l0_%=; \
+ goto l1_%=; \
+l0_%=: r0 = *(u64*)(r1 - 7); \
+l1_%=: 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("XDP pkt read, pkt_data <= pkt_meta', good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_pkt_meta_good_access_2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 <= r1 goto l0_%=; \
+ r0 = *(u32*)(r1 - 5); \
+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("XDP pkt read, pkt_data <= pkt_meta', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_16(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 6; \
+ if r3 <= r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 6); \
+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("XDP pkt read, pkt_data <= pkt_meta', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_2_4(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 <= r1 goto l0_%=; \
+l0_%=: r0 = *(u32*)(r1 - 5); \
+ 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("XDP pkt read, pkt_data <= pkt_meta', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_corner_case_good_access_4(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 7; \
+ if r3 <= r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 7); \
+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("XDP pkt read, pkt_data <= pkt_meta', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_16(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r1 = r2; \
+ r1 += 8; \
+ if r3 <= r1 goto l0_%=; \
+ r0 = *(u64*)(r1 - 8); \
+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);
+}
+
+char _license[] SEC("license") = "GPL";
--
2.40.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH bpf-next 2/2] selftests/bpf: remove verifier/xdp_direct_packet_access.c, converted to progs/verifier_xdp_direct_packet_access.c
2023-03-28 2:08 [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly Eduard Zingerman
2023-03-28 2:08 ` [PATCH bpf-next 1/2] selftests/bpf: " Eduard Zingerman
@ 2023-03-28 2:08 ` Eduard Zingerman
2023-03-28 21:50 ` [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: Eduard Zingerman @ 2023-03-28 2:08 UTC (permalink / raw)
To: bpf, ast; +Cc: andrii, daniel, martin.lau, kernel-team, yhs, Eduard Zingerman
Removing verifier/xdp_direct_packet_access.c.c as it was automatically converted to use
inline assembly in the previous commit. It is available in
progs/verifier_xdp_direct_packet_access.c.c.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
---
.../bpf/verifier/xdp_direct_packet_access.c | 1468 -----------------
1 file changed, 1468 deletions(-)
delete mode 100644 tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
diff --git a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
deleted file mode 100644
index b4ec228eb95d..000000000000
--- a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
+++ /dev/null
@@ -1,1468 +0,0 @@
-{
- "XDP pkt read, pkt_end mangling, bad access 1",
- .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_ALU64_IMM(BPF_ADD, BPF_REG_3, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R3 pointer arithmetic on pkt_end",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "XDP pkt read, pkt_end mangling, bad access 2",
- .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_ALU64_IMM(BPF_SUB, BPF_REG_3, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R3 pointer arithmetic on pkt_end",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "XDP pkt read, pkt_data' > pkt_end, corner case, good access",
- .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, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' > pkt_end, bad access 1",
- .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, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' > pkt_end, bad access 2",
- .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, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' > pkt_end, corner case +1, good access",
- .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, 9),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' > pkt_end, corner case -1, bad access",
- .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, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end > pkt_data', good access",
- .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_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end > pkt_data', corner case -1, bad access",
- .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, 6),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end > pkt_data', bad access 2",
- .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_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end > pkt_data', corner case, good access",
- .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, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end > pkt_data', corner case +1, good access",
- .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_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' < pkt_end, good access",
- .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_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' < pkt_end, corner case -1, bad access",
- .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, 6),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' < pkt_end, bad access 2",
- .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_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' < pkt_end, corner case, good access",
- .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, 7),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' < pkt_end, corner case +1, good access",
- .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_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end < pkt_data', corner case, good access",
- .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_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end < pkt_data', bad access 1",
- .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_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end < pkt_data', bad access 2",
- .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_JLT, BPF_REG_3, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end < pkt_data', corner case +1, good access",
- .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, 9),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end < pkt_data', corner case -1, bad access",
- .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, 7),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' >= pkt_end, good access",
- .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_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' >= pkt_end, corner case -1, bad access",
- .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, 6),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' >= pkt_end, bad access 2",
- .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_JGE, BPF_REG_1, BPF_REG_3, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' >= pkt_end, corner case, good access",
- .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, 7),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' >= pkt_end, corner case +1, good access",
- .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_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end >= pkt_data', corner case, good access",
- .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_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end >= pkt_data', bad access 1",
- .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_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end >= pkt_data', bad access 2",
- .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_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end >= pkt_data', corner case +1, good access",
- .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, 9),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end >= pkt_data', corner case -1, bad access",
- .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, 7),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' <= pkt_end, corner case, good access",
- .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_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' <= pkt_end, bad access 1",
- .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_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' <= pkt_end, bad access 2",
- .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_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' <= pkt_end, corner case +1, good access",
- .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, 9),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data' <= pkt_end, corner case -1, bad access",
- .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, 7),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end <= pkt_data', good access",
- .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_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end <= pkt_data', corner case -1, bad access",
- .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, 6),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end <= pkt_data', bad access 2",
- .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_JLE, BPF_REG_3, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end <= pkt_data', corner case, good access",
- .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, 7),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_end <= pkt_data', corner case +1, good access",
- .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_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' > pkt_data, corner case, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' > pkt_data, bad access 1",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' > pkt_data, bad access 2",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' > pkt_data, corner case +1, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' > pkt_data, corner case -1, bad access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data > pkt_meta', good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data > pkt_meta', corner case -1, bad access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data > pkt_meta', bad access 2",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data > pkt_meta', corner case, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data > pkt_meta', corner case +1, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' < pkt_data, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' < pkt_data, corner case -1, bad access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' < pkt_data, bad access 2",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' < pkt_data, corner case, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' < pkt_data, corner case +1, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data < pkt_meta', corner case, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data < pkt_meta', bad access 1",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data < pkt_meta', bad access 2",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data < pkt_meta', corner case +1, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data < pkt_meta', corner case -1, bad access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' >= pkt_data, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' >= pkt_data, corner case -1, bad access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' >= pkt_data, bad access 2",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' >= pkt_data, corner case, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' >= pkt_data, corner case +1, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data >= pkt_meta', corner case, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data >= pkt_meta', bad access 1",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data >= pkt_meta', bad access 2",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data >= pkt_meta', corner case +1, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data >= pkt_meta', corner case -1, bad access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' <= pkt_data, corner case, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' <= pkt_data, bad access 1",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' <= pkt_data, bad access 2",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' <= pkt_data, corner case +1, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_meta' <= pkt_data, corner case -1, bad access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data <= pkt_meta', good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data <= pkt_meta', corner case -1, bad access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data <= pkt_meta', bad access 2",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data <= pkt_meta', corner case, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "XDP pkt read, pkt_data <= pkt_meta', corner case +1, good access",
- .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_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
--
2.40.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly
2023-03-28 2:08 [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly Eduard Zingerman
2023-03-28 2:08 ` [PATCH bpf-next 1/2] selftests/bpf: " Eduard Zingerman
2023-03-28 2:08 ` [PATCH bpf-next 2/2] selftests/bpf: remove verifier/xdp_direct_packet_access.c, converted to progs/verifier_xdp_direct_packet_access.c Eduard Zingerman
@ 2023-03-28 21:50 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: patchwork-bot+netdevbpf @ 2023-03-28 21:50 UTC (permalink / raw)
To: Eduard Zingerman; +Cc: bpf, ast, andrii, daniel, martin.lau, kernel-team, yhs
Hello:
This series was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@kernel.org>:
On Tue, 28 Mar 2023 05:08:11 +0300 you wrote:
> verifier/xdp_direct_packet_access.c automatically converted to inline
> assembly using [1].
>
> This is a leftover from [2], the last patch in a batch was blocked by
> mail server for being too long. This patch-set splits it in two:
> - one to add migrated test to progs/
> - one to remove old test from verifier/
>
> [...]
Here is the summary with links:
- [bpf-next,1/2] selftests/bpf: verifier/xdp_direct_packet_access.c converted to inline assembly
https://git.kernel.org/bpf/bpf-next/c/6e9e141a7a28
- [bpf-next,2/2] selftests/bpf: remove verifier/xdp_direct_packet_access.c, converted to progs/verifier_xdp_direct_packet_access.c
https://git.kernel.org/bpf/bpf-next/c/c63a7d8bbb54
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-03-28 21:50 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2023-03-28 2:08 [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly Eduard Zingerman
2023-03-28 2:08 ` [PATCH bpf-next 1/2] selftests/bpf: " Eduard Zingerman
2023-03-28 2:08 ` [PATCH bpf-next 2/2] selftests/bpf: remove verifier/xdp_direct_packet_access.c, converted to progs/verifier_xdp_direct_packet_access.c Eduard Zingerman
2023-03-28 21:50 ` [PATCH bpf-next 0/2] verifier/xdp_direct_packet_access.c converted to inline assembly patchwork-bot+netdevbpf
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