18c2ecf20Sopenharmony_ci{ 28c2ecf20Sopenharmony_ci "xadd/w check unaligned stack", 38c2ecf20Sopenharmony_ci .insns = { 48c2ecf20Sopenharmony_ci BPF_MOV64_IMM(BPF_REG_0, 1), 58c2ecf20Sopenharmony_ci BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 68c2ecf20Sopenharmony_ci BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -7), 78c2ecf20Sopenharmony_ci BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), 88c2ecf20Sopenharmony_ci BPF_EXIT_INSN(), 98c2ecf20Sopenharmony_ci }, 108c2ecf20Sopenharmony_ci .result = REJECT, 118c2ecf20Sopenharmony_ci .errstr = "misaligned stack access off", 128c2ecf20Sopenharmony_ci .prog_type = BPF_PROG_TYPE_SCHED_CLS, 138c2ecf20Sopenharmony_ci}, 148c2ecf20Sopenharmony_ci{ 158c2ecf20Sopenharmony_ci "xadd/w check unaligned map", 168c2ecf20Sopenharmony_ci .insns = { 178c2ecf20Sopenharmony_ci BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 188c2ecf20Sopenharmony_ci BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 198c2ecf20Sopenharmony_ci BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 208c2ecf20Sopenharmony_ci BPF_LD_MAP_FD(BPF_REG_1, 0), 218c2ecf20Sopenharmony_ci BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), 228c2ecf20Sopenharmony_ci BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), 238c2ecf20Sopenharmony_ci BPF_EXIT_INSN(), 248c2ecf20Sopenharmony_ci BPF_MOV64_IMM(BPF_REG_1, 1), 258c2ecf20Sopenharmony_ci BPF_STX_XADD(BPF_W, BPF_REG_0, BPF_REG_1, 3), 268c2ecf20Sopenharmony_ci BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 3), 278c2ecf20Sopenharmony_ci BPF_EXIT_INSN(), 288c2ecf20Sopenharmony_ci }, 298c2ecf20Sopenharmony_ci .fixup_map_hash_8b = { 3 }, 308c2ecf20Sopenharmony_ci .result = REJECT, 318c2ecf20Sopenharmony_ci .errstr = "misaligned value access off", 328c2ecf20Sopenharmony_ci .prog_type = BPF_PROG_TYPE_SCHED_CLS, 338c2ecf20Sopenharmony_ci}, 348c2ecf20Sopenharmony_ci{ 358c2ecf20Sopenharmony_ci "xadd/w check unaligned pkt", 368c2ecf20Sopenharmony_ci .insns = { 378c2ecf20Sopenharmony_ci BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), 388c2ecf20Sopenharmony_ci BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 398c2ecf20Sopenharmony_ci offsetof(struct xdp_md, data_end)), 408c2ecf20Sopenharmony_ci BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 418c2ecf20Sopenharmony_ci BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), 428c2ecf20Sopenharmony_ci BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 2), 438c2ecf20Sopenharmony_ci BPF_MOV64_IMM(BPF_REG_0, 99), 448c2ecf20Sopenharmony_ci BPF_JMP_IMM(BPF_JA, 0, 0, 6), 458c2ecf20Sopenharmony_ci BPF_MOV64_IMM(BPF_REG_0, 1), 468c2ecf20Sopenharmony_ci BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0), 478c2ecf20Sopenharmony_ci BPF_ST_MEM(BPF_W, BPF_REG_2, 3, 0), 488c2ecf20Sopenharmony_ci BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 1), 498c2ecf20Sopenharmony_ci BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 2), 508c2ecf20Sopenharmony_ci BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 1), 518c2ecf20Sopenharmony_ci BPF_EXIT_INSN(), 528c2ecf20Sopenharmony_ci }, 538c2ecf20Sopenharmony_ci .result = REJECT, 548c2ecf20Sopenharmony_ci .errstr = "BPF_XADD stores into R2 pkt is not allowed", 558c2ecf20Sopenharmony_ci .prog_type = BPF_PROG_TYPE_XDP, 568c2ecf20Sopenharmony_ci .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 578c2ecf20Sopenharmony_ci}, 588c2ecf20Sopenharmony_ci{ 598c2ecf20Sopenharmony_ci "xadd/w check whether src/dst got mangled, 1", 608c2ecf20Sopenharmony_ci .insns = { 618c2ecf20Sopenharmony_ci BPF_MOV64_IMM(BPF_REG_0, 1), 628c2ecf20Sopenharmony_ci BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), 638c2ecf20Sopenharmony_ci BPF_MOV64_REG(BPF_REG_7, BPF_REG_10), 648c2ecf20Sopenharmony_ci BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 658c2ecf20Sopenharmony_ci BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 668c2ecf20Sopenharmony_ci BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 678c2ecf20Sopenharmony_ci BPF_JMP_REG(BPF_JNE, BPF_REG_6, BPF_REG_0, 3), 688c2ecf20Sopenharmony_ci BPF_JMP_REG(BPF_JNE, BPF_REG_7, BPF_REG_10, 2), 698c2ecf20Sopenharmony_ci BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), 708c2ecf20Sopenharmony_ci BPF_EXIT_INSN(), 718c2ecf20Sopenharmony_ci BPF_MOV64_IMM(BPF_REG_0, 42), 728c2ecf20Sopenharmony_ci BPF_EXIT_INSN(), 738c2ecf20Sopenharmony_ci }, 748c2ecf20Sopenharmony_ci .result = ACCEPT, 758c2ecf20Sopenharmony_ci .prog_type = BPF_PROG_TYPE_SCHED_CLS, 768c2ecf20Sopenharmony_ci .retval = 3, 778c2ecf20Sopenharmony_ci}, 788c2ecf20Sopenharmony_ci{ 798c2ecf20Sopenharmony_ci "xadd/w check whether src/dst got mangled, 2", 808c2ecf20Sopenharmony_ci .insns = { 818c2ecf20Sopenharmony_ci BPF_MOV64_IMM(BPF_REG_0, 1), 828c2ecf20Sopenharmony_ci BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), 838c2ecf20Sopenharmony_ci BPF_MOV64_REG(BPF_REG_7, BPF_REG_10), 848c2ecf20Sopenharmony_ci BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -8), 858c2ecf20Sopenharmony_ci BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -8), 868c2ecf20Sopenharmony_ci BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -8), 878c2ecf20Sopenharmony_ci BPF_JMP_REG(BPF_JNE, BPF_REG_6, BPF_REG_0, 3), 888c2ecf20Sopenharmony_ci BPF_JMP_REG(BPF_JNE, BPF_REG_7, BPF_REG_10, 2), 898c2ecf20Sopenharmony_ci BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), 908c2ecf20Sopenharmony_ci BPF_EXIT_INSN(), 918c2ecf20Sopenharmony_ci BPF_MOV64_IMM(BPF_REG_0, 42), 928c2ecf20Sopenharmony_ci BPF_EXIT_INSN(), 938c2ecf20Sopenharmony_ci }, 948c2ecf20Sopenharmony_ci .result = ACCEPT, 958c2ecf20Sopenharmony_ci .prog_type = BPF_PROG_TYPE_SCHED_CLS, 968c2ecf20Sopenharmony_ci .retval = 3, 978c2ecf20Sopenharmony_ci}, 98