From: Eduard Zingerman <eddyz87@gmail.com>
To: bpf@vger.kernel.org, ast@kernel.org
Cc: andrii@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev,
kernel-team@fb.com, yhs@fb.com,
Eduard Zingerman <eddyz87@gmail.com>
Subject: [PATCH bpf-next 30/43] selftests/bpf: verifier/meta_access.c converted to inline assembly
Date: Sat, 25 Mar 2023 04:55:11 +0200 [thread overview]
Message-ID: <20230325025524.144043-31-eddyz87@gmail.com> (raw)
In-Reply-To: <20230325025524.144043-1-eddyz87@gmail.com>
Test verifier/meta_access.c automatically converted to use inline assembly.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
---
.../selftests/bpf/prog_tests/verifier.c | 2 +
.../bpf/progs/verifier_meta_access.c | 284 ++++++++++++++++++
.../selftests/bpf/verifier/meta_access.c | 235 ---------------
3 files changed, 286 insertions(+), 235 deletions(-)
create mode 100644 tools/testing/selftests/bpf/progs/verifier_meta_access.c
delete mode 100644 tools/testing/selftests/bpf/verifier/meta_access.c
diff --git a/tools/testing/selftests/bpf/prog_tests/verifier.c b/tools/testing/selftests/bpf/prog_tests/verifier.c
index b23fcbe4f83b..bd48a584a356 100644
--- a/tools/testing/selftests/bpf/prog_tests/verifier.c
+++ b/tools/testing/selftests/bpf/prog_tests/verifier.c
@@ -27,6 +27,7 @@
#include "verifier_map_ptr.skel.h"
#include "verifier_map_ret_val.skel.h"
#include "verifier_masking.skel.h"
+#include "verifier_meta_access.skel.h"
__maybe_unused
static void run_tests_aux(const char *skel_name, skel_elf_bytes_fn elf_bytes_factory)
@@ -76,3 +77,4 @@ void test_verifier_leak_ptr(void) { RUN(verifier_leak_ptr); }
void test_verifier_map_ptr(void) { RUN(verifier_map_ptr); }
void test_verifier_map_ret_val(void) { RUN(verifier_map_ret_val); }
void test_verifier_masking(void) { RUN(verifier_masking); }
+void test_verifier_meta_access(void) { RUN(verifier_meta_access); }
diff --git a/tools/testing/selftests/bpf/progs/verifier_meta_access.c b/tools/testing/selftests/bpf/progs/verifier_meta_access.c
new file mode 100644
index 000000000000..d81722fb5f19
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_meta_access.c
@@ -0,0 +1,284 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/meta_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("xdp")
+__description("meta access, test1")
+__success __retval(0)
+__naked void meta_access_test1(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r0 = r2; \
+ r0 += 8; \
+ if r0 > r3 goto l0_%=; \
+ r0 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test2")
+__failure __msg("invalid access to packet, off=-8")
+__naked void meta_access_test2(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r0 = r2; \
+ r0 -= 8; \
+ r4 = r2; \
+ r4 += 8; \
+ if r4 > r3 goto l0_%=; \
+ r0 = *(u8*)(r0 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test3")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test3(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r0 = r2; \
+ r0 += 8; \
+ if r0 > r3 goto l0_%=; \
+ r0 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test4")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test4(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r4 = *(u32*)(r1 + %[xdp_md_data]); \
+ r0 = r4; \
+ r0 += 8; \
+ if r0 > r3 goto l0_%=; \
+ r0 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test5")
+__failure __msg("R3 !read_ok")
+__naked void meta_access_test5(void)
+{
+ asm volatile (" \
+ r3 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r4 = *(u32*)(r1 + %[xdp_md_data]); \
+ r0 = r3; \
+ r0 += 8; \
+ if r0 > r4 goto l0_%=; \
+ r2 = -8; \
+ call %[bpf_xdp_adjust_meta]; \
+ r0 = *(u8*)(r3 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_xdp_adjust_meta),
+ __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test6")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test6(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r0 = r3; \
+ r0 += 8; \
+ r4 = r2; \
+ r4 += 8; \
+ if r4 > r0 goto l0_%=; \
+ r0 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test7")
+__success __retval(0)
+__naked void meta_access_test7(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r0 = r3; \
+ r0 += 8; \
+ r4 = r2; \
+ r4 += 8; \
+ if r4 > r3 goto l0_%=; \
+ r0 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test8")
+__success __retval(0)
+__naked void meta_access_test8(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r4 = r2; \
+ r4 += 0xFFFF; \
+ if r4 > r3 goto l0_%=; \
+ r0 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test9")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test9(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r4 = r2; \
+ r4 += 0xFFFF; \
+ r4 += 1; \
+ if r4 > r3 goto l0_%=; \
+ r0 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test10")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test10(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r4 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r5 = 42; \
+ r6 = 24; \
+ *(u64*)(r10 - 8) = r5; \
+ lock *(u64 *)(r10 - 8) += r6; \
+ r5 = *(u64*)(r10 - 8); \
+ if r5 > 100 goto l0_%=; \
+ r3 += r5; \
+ r5 = r3; \
+ r6 = r2; \
+ r6 += 8; \
+ if r6 > r5 goto l0_%=; \
+ r2 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test11")
+__success __retval(0)
+__naked void meta_access_test11(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r5 = 42; \
+ r6 = 24; \
+ *(u64*)(r10 - 8) = r5; \
+ lock *(u64 *)(r10 - 8) += r6; \
+ r5 = *(u64*)(r10 - 8); \
+ if r5 > 100 goto l0_%=; \
+ r2 += r5; \
+ r5 = r2; \
+ r6 = r2; \
+ r6 += 8; \
+ if r6 > r3 goto l0_%=; \
+ r5 = *(u8*)(r5 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test12")
+__success __retval(0)
+__naked void meta_access_test12(void)
+{
+ asm volatile (" \
+ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \
+ r3 = *(u32*)(r1 + %[xdp_md_data]); \
+ r4 = *(u32*)(r1 + %[xdp_md_data_end]); \
+ r5 = r3; \
+ r5 += 16; \
+ if r5 > r4 goto l0_%=; \
+ r0 = *(u8*)(r3 + 0); \
+ r5 = r2; \
+ r5 += 16; \
+ if r5 > r3 goto l0_%=; \
+ r0 = *(u8*)(r2 + 0); \
+l0_%=: r0 = 0; \
+ exit; \
+" :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+ __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+ __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/verifier/meta_access.c b/tools/testing/selftests/bpf/verifier/meta_access.c
deleted file mode 100644
index b45e8af41420..000000000000
--- a/tools/testing/selftests/bpf/verifier/meta_access.c
+++ /dev/null
@@ -1,235 +0,0 @@
-{
- "meta access, test1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 8),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet, off=-8",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test3",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test4",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test5",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_4, 3),
- BPF_MOV64_IMM(BPF_REG_2, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_xdp_adjust_meta),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R3 !read_ok",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test6",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test7",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test8",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0xFFFF),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test9",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0xFFFF),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test10",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_IMM(BPF_REG_5, 42),
- BPF_MOV64_IMM(BPF_REG_6, 24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_5, -8),
- BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_10, BPF_REG_6, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -8),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_5, 100, 6),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_5),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_5, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test11",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_MOV64_IMM(BPF_REG_5, 42),
- BPF_MOV64_IMM(BPF_REG_6, 24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_5, -8),
- BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_10, BPF_REG_6, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -8),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_5, 100, 6),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_5),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_5, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
-{
- "meta access, test12",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 16),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 5),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 0),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 16),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
-},
--
2.40.0
next prev parent reply other threads:[~2023-03-25 2:56 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-25 2:54 [PATCH bpf-next 00/43] First set of verifier/*.c migrated to inline assembly Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 01/43] selftests/bpf: Report program name on parse_test_spec error Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 02/43] selftests/bpf: __imm_insn & __imm_const macro for bpf_misc.h Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 03/43] selftests/bpf: Unprivileged tests for test_loader.c Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 04/43] selftests/bpf: Tests execution support " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 05/43] selftests/bpf: prog_tests entry point for migrated test_verifier tests Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 06/43] selftests/bpf: verifier/and.c converted to inline assembly Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 07/43] selftests/bpf: verifier/array_access.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 08/43] selftests/bpf: verifier/basic_stack.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 09/43] selftests/bpf: verifier/bounds_deduction.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 10/43] selftests/bpf: verifier/bounds_mix_sign_unsign.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 11/43] selftests/bpf: verifier/cfg.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 12/43] selftests/bpf: verifier/cgroup_inv_retcode.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 13/43] selftests/bpf: verifier/cgroup_skb.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 14/43] selftests/bpf: verifier/cgroup_storage.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 15/43] selftests/bpf: verifier/const_or.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 16/43] selftests/bpf: verifier/ctx_sk_msg.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 17/43] selftests/bpf: verifier/direct_stack_access_wraparound.c " Eduard Zingerman
2023-03-25 2:54 ` [PATCH bpf-next 18/43] selftests/bpf: verifier/div0.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 19/43] selftests/bpf: verifier/div_overflow.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 20/43] selftests/bpf: verifier/helper_access_var_len.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 21/43] selftests/bpf: verifier/helper_packet_access.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 22/43] selftests/bpf: verifier/helper_restricted.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 23/43] selftests/bpf: verifier/helper_value_access.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 24/43] selftests/bpf: verifier/int_ptr.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 25/43] selftests/bpf: verifier/ld_ind.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 26/43] selftests/bpf: verifier/leak_ptr.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 27/43] selftests/bpf: verifier/map_ptr.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 28/43] selftests/bpf: verifier/map_ret_val.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 29/43] selftests/bpf: verifier/masking.c " Eduard Zingerman
2023-03-25 2:55 ` Eduard Zingerman [this message]
2023-03-25 2:55 ` [PATCH bpf-next 31/43] selftests/bpf: verifier/raw_stack.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 32/43] selftests/bpf: verifier/raw_tp_writable.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 33/43] selftests/bpf: verifier/ringbuf.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 34/43] selftests/bpf: verifier/spill_fill.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 35/43] selftests/bpf: verifier/stack_ptr.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 36/43] selftests/bpf: verifier/uninit.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 37/43] selftests/bpf: verifier/value_adj_spill.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 38/43] selftests/bpf: verifier/value.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 39/43] selftests/bpf: verifier/value_or_null.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 40/43] selftests/bpf: verifier/var_off.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 41/43] selftests/bpf: verifier/xadd.c " Eduard Zingerman
2023-03-25 2:55 ` [PATCH bpf-next 42/43] selftests/bpf: verifier/xdp.c " Eduard Zingerman
2023-03-25 3:23 ` [PATCH bpf-next 00/43] First set of verifier/*.c migrated " Stanislav Fomichev
2023-03-25 12:20 ` Eduard Zingerman
2023-03-25 16:16 ` Stanislav Fomichev
2023-03-26 1:19 ` Alexei Starovoitov
2023-03-27 3:15 ` Andrii Nakryiko
2023-03-27 3:57 ` Alexei Starovoitov
2023-03-27 11:26 ` Eduard Zingerman
2023-03-27 16:35 ` Andrii Nakryiko
2023-03-27 16:37 ` Andrii Nakryiko
2023-03-26 1:32 ` patchwork-bot+netdevbpf
2023-03-28 3:48 ` Daniel Borkmann
2023-03-28 21:52 ` Eduard Zingerman
2023-03-28 22:24 ` Andrii Nakryiko
2023-03-28 22:38 ` Eduard Zingerman
2023-03-28 23:31 ` Alexei Starovoitov
2023-03-29 0:11 ` Andrii Nakryiko
2023-03-29 0:07 ` Andrii Nakryiko
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