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authorAlexei Starovoitov <ast@kernel.org>2023-03-25 17:02:06 -0700
committerAlexei Starovoitov <ast@kernel.org>2023-03-25 17:02:06 -0700
commite99360762a9cbd93bf1d352e90df5df78daa2f90 (patch)
tree4f46a712b5334598eddf869b913f7b887c07178c /tools/testing/selftests/bpf/verifier/array_access.c
parent496f4f1b0f8e01baea22e6573f60af8cfd84df48 (diff)
parentffb515c933a9e8000e50b03f76569ffb6ef4d39d (diff)
Merge branch 'First set of verifier/*.c migrated to inline assembly'
Eduard Zingerman says: ==================== This is a follow up for RFC [1]. It migrates a first batch of 38 verifier/*.c tests to inline assembly and use of ./test_progs for actual execution. The migration is done by a python script (see [2]). Each migrated verifier/xxx.c file is mapped to progs/verifier_xxx.c plus an entry in the prog_tests/verifier.c. One patch per each file. A few patches at the beginning of the patch-set extend test_loader with necessary functionality, mainly: - support for tests execution in unprivileged mode; - support for test runs for test programs. Migrated tests could be selected for execution using the following filter: ./test_progs -a verifier_* An example of the migrated test: 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); } Changes compared to RFC: - test_loader.c is extended to support test program runs; - capabilities handling now matches behavior of test_verifier; - BPF_ST_MEM instructions are automatically replaced by BPF_STX_MEM instructions to overcome current clang limitations; - tests styling updates according to RFC feedback; - 38 migrated files are included instead of 1. I used the following means for testing: - migration tool itself has a set of self-tests; - migrated tests are passing; - manually compared each old/new file side-by-side. While doing side-by-side comparison I've noted a few defects in the original tests: - and.c: - One of the jump targets is off by one; - BPF_ST_MEM wrong OFF/IMM ordering; - array_access.c: - BPF_ST_MEM wrong OFF/IMM ordering; - value_or_null.c: - BPF_ST_MEM wrong OFF/IMM ordering. These defects would be addressed separately. [1] RFC https://lore.kernel.org/bpf/20230123145148.2791939-1-eddyz87@gmail.com/ [2] Migration tool https://github.com/eddyz87/verifier-tests-migrator ==================== Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/verifier/array_access.c')
-rw-r--r--tools/testing/selftests/bpf/verifier/array_access.c379
1 files changed, 0 insertions, 379 deletions
diff --git a/tools/testing/selftests/bpf/verifier/array_access.c b/tools/testing/selftests/bpf/verifier/array_access.c
deleted file mode 100644
index 1b138cd2b187..000000000000
--- a/tools/testing/selftests/bpf/verifier/array_access.c
+++ /dev/null
@@ -1,379 +0,0 @@
-{
- "valid map access into an array with a constant",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
-},
-{
- "valid map access into an array with a register",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_IMM(BPF_REG_1, 4),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "valid map access into an array with a variable",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "valid map access into an array with a signed variable",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP32_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
- BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "invalid map access into an array with a constant",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr = "invalid access to map value, value_size=48 off=48 size=8",
- .result = REJECT,
-},
-{
- "invalid map access into an array with a register",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr = "R0 min value is outside of the allowed memory range",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "invalid map access into an array with a variable",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr = "R0 unbounded memory access, make sure to bounds check any such access",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "invalid map access into an array with no floor check",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
- BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .errstr = "R0 unbounded memory access",
- .result_unpriv = REJECT,
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "invalid map access into an array with a invalid max check",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .errstr = "invalid access to map value, value_size=48 off=44 size=8",
- .result_unpriv = REJECT,
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "invalid map access into an array with a invalid max check",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map_hash_48b = { 3, 11 },
- .errstr = "R0 pointer += pointer",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-},
-{
- "valid read map access into a read-only array 1",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_array_ro = { 3 },
- .result = ACCEPT,
- .retval = 28,
-},
-{
- "valid read map access into a read-only array 2",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
-
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffff),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map_array_ro = { 3 },
- .result = ACCEPT,
- .retval = 65507,
-},
-{
- "invalid write map access into a read-only array 1",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
- BPF_EXIT_INSN(),
- },
- .fixup_map_array_ro = { 3 },
- .result = REJECT,
- .errstr = "write into map forbidden",
-},
-{
- "invalid write map access into a read-only array 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map_array_ro = { 4 },
- .result = REJECT,
- .errstr = "write into map forbidden",
-},
-{
- "valid write map access into a write-only array 1",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_map_array_wo = { 3 },
- .result = ACCEPT,
- .retval = 1,
-},
-{
- "valid write map access into a write-only array 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map_array_wo = { 4 },
- .result = ACCEPT,
- .retval = 0,
-},
-{
- "invalid read map access into a write-only array 1",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_array_wo = { 3 },
- .result = REJECT,
- .errstr = "read from map forbidden",
-},
-{
- "invalid read map access into a write-only array 2",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
-
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map_array_wo = { 3 },
- .result = REJECT,
- .errstr = "read from map forbidden",
-},