| /* | |
| * Testsuite for eBPF verifier | |
| * | |
| * Copyright (c) 2014 PLUMgrid, http://plumgrid.com | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of version 2 of the GNU General Public | |
| * License as published by the Free Software Foundation. | |
| */ | |
| #include <endian.h> | |
| #include <asm/types.h> | |
| #include <linux/types.h> | |
| #include <stdint.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <unistd.h> | |
| #include <errno.h> | |
| #include <string.h> | |
| #include <stddef.h> | |
| #include <stdbool.h> | |
| #include <sched.h> | |
| #include <sys/capability.h> | |
| #include <sys/resource.h> | |
| #include <linux/unistd.h> | |
| #include <linux/filter.h> | |
| #include <linux/bpf_perf_event.h> | |
| #include <linux/bpf.h> | |
| #include <bpf/bpf.h> | |
| #ifdef HAVE_GENHDR | |
| # include "autoconf.h" | |
| #else | |
| # if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__) | |
| # define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1 | |
| # endif | |
| #endif | |
| #include "../../../include/linux/filter.h" | |
| #ifndef ARRAY_SIZE | |
| # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) | |
| #endif | |
| #define MAX_INSNS 512 | |
| #define MAX_FIXUPS 8 | |
| #define MAX_NR_MAPS 4 | |
| #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS (1 << 0) | |
| #define F_LOAD_WITH_STRICT_ALIGNMENT (1 << 1) | |
| struct bpf_test { | |
| const char *descr; | |
| struct bpf_insn insns[MAX_INSNS]; | |
| int fixup_map1[MAX_FIXUPS]; | |
| int fixup_map2[MAX_FIXUPS]; | |
| int fixup_prog[MAX_FIXUPS]; | |
| int fixup_map_in_map[MAX_FIXUPS]; | |
| const char *errstr; | |
| const char *errstr_unpriv; | |
| enum { | |
| UNDEF, | |
| ACCEPT, | |
| REJECT | |
| } result, result_unpriv; | |
| enum bpf_prog_type prog_type; | |
| uint8_t flags; | |
| }; | |
| /* Note we want this to be 64 bit aligned so that the end of our array is | |
| * actually the end of the structure. | |
| */ | |
| #define MAX_ENTRIES 11 | |
| struct test_val { | |
| unsigned int index; | |
| int foo[MAX_ENTRIES]; | |
| }; | |
| static struct bpf_test tests[] = { | |
| { | |
| "add+sub+mul", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 1), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2), | |
| BPF_MOV64_IMM(BPF_REG_2, 3), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), | |
| BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unreachable", | |
| .insns = { | |
| BPF_EXIT_INSN(), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "unreachable", | |
| .result = REJECT, | |
| }, | |
| { | |
| "unreachable2", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "unreachable", | |
| .result = REJECT, | |
| }, | |
| { | |
| "out of range jump", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "jump out of range", | |
| .result = REJECT, | |
| }, | |
| { | |
| "out of range jump2", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "jump out of range", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test1 ld_imm64", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
| BPF_LD_IMM64(BPF_REG_0, 0), | |
| BPF_LD_IMM64(BPF_REG_0, 0), | |
| BPF_LD_IMM64(BPF_REG_0, 1), | |
| BPF_LD_IMM64(BPF_REG_0, 1), | |
| BPF_MOV64_IMM(BPF_REG_0, 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid BPF_LD_IMM insn", | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test2 ld_imm64", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
| BPF_LD_IMM64(BPF_REG_0, 0), | |
| BPF_LD_IMM64(BPF_REG_0, 0), | |
| BPF_LD_IMM64(BPF_REG_0, 1), | |
| BPF_LD_IMM64(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid BPF_LD_IMM insn", | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test3 ld_imm64", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
| BPF_LD_IMM64(BPF_REG_0, 0), | |
| BPF_LD_IMM64(BPF_REG_0, 0), | |
| BPF_LD_IMM64(BPF_REG_0, 1), | |
| BPF_LD_IMM64(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_ld_imm64 insn", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test4 ld_imm64", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_ld_imm64 insn", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test5 ld_imm64", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
| }, | |
| .errstr = "invalid bpf_ld_imm64 insn", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test6 ld_imm64", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
| BPF_RAW_INSN(0, 0, 0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "test7 ld_imm64", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | |
| BPF_RAW_INSN(0, 0, 0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "test8 ld_imm64", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1), | |
| BPF_RAW_INSN(0, 0, 0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "uses reserved fields", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test9 ld_imm64", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | |
| BPF_RAW_INSN(0, 0, 0, 1, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_ld_imm64 insn", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test10 ld_imm64", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | |
| BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_ld_imm64 insn", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test11 ld_imm64", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | |
| BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_ld_imm64 insn", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test12 ld_imm64", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1), | |
| BPF_RAW_INSN(0, 0, 0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "not pointing to valid bpf_map", | |
| .result = REJECT, | |
| }, | |
| { | |
| "test13 ld_imm64", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1), | |
| BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_ld_imm64 insn", | |
| .result = REJECT, | |
| }, | |
| { | |
| "arsh32 on imm", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_ALU32_IMM(BPF_ARSH, BPF_REG_0, 5), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "BPF_ARSH not supported for 32 bit ALU", | |
| }, | |
| { | |
| "arsh32 on reg", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_MOV64_IMM(BPF_REG_1, 5), | |
| BPF_ALU32_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "BPF_ARSH not supported for 32 bit ALU", | |
| }, | |
| { | |
| "arsh64 on imm", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_ALU64_IMM(BPF_ARSH, BPF_REG_0, 5), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "arsh64 on reg", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_MOV64_IMM(BPF_REG_1, 5), | |
| BPF_ALU64_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "no bpf_exit", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2), | |
| }, | |
| .errstr = "jump out of range", | |
| .result = REJECT, | |
| }, | |
| { | |
| "loop (back-edge)", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "back-edge", | |
| .result = REJECT, | |
| }, | |
| { | |
| "loop2 (back-edge)", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -4), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "back-edge", | |
| .result = REJECT, | |
| }, | |
| { | |
| "conditional loop", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "back-edge", | |
| .result = REJECT, | |
| }, | |
| { | |
| "read uninitialized register", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R2 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "read invalid register", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_0, -1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R15 is invalid", | |
| .result = REJECT, | |
| }, | |
| { | |
| "program doesn't init R0 before exit", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R0 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "program doesn't init R0 before exit in all branches", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R0 !read_ok", | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result = REJECT, | |
| }, | |
| { | |
| "stack out of bounds", | |
| .insns = { | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid call insn1", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "BPF_CALL uses reserved", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid call insn2", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "BPF_CALL uses reserved", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid function call", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid func unknown#1234567", | |
| .result = REJECT, | |
| }, | |
| { | |
| "uninitialized stack1", | |
| .insns = { | |
| 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_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 2 }, | |
| .errstr = "invalid indirect read from stack", | |
| .result = REJECT, | |
| }, | |
| { | |
| "uninitialized stack2", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid read from stack", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid fp arithmetic", | |
| /* If this gets ever changed, make sure JITs can deal with it. */ | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R1 subtraction from stack pointer", | |
| .result_unpriv = REJECT, | |
| .errstr = "R1 invalid mem access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "non-invalid fp arithmetic", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "invalid argument register", | |
| .insns = { | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_get_cgroup_classid), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_get_cgroup_classid), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R1 !read_ok", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "non-invalid argument register", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_get_cgroup_classid), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_get_cgroup_classid), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "check valid spill/fill", | |
| .insns = { | |
| /* spill R1(ctx) into stack */ | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
| /* fill it back into R2 */ | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), | |
| /* should be able to access R0 = *(R2 + 8) */ | |
| /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "check valid spill/fill, skb mark", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .result_unpriv = ACCEPT, | |
| }, | |
| { | |
| "check corrupted spill/fill", | |
| .insns = { | |
| /* spill R1(ctx) into stack */ | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
| /* mess up with R1 pointer on stack */ | |
| BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), | |
| /* fill back into R0 should fail */ | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "attempt to corrupt spilled", | |
| .errstr = "corrupted spill", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid src register in STX", | |
| .insns = { | |
| BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R15 is invalid", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid dst register in STX", | |
| .insns = { | |
| BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R14 is invalid", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid dst register in ST", | |
| .insns = { | |
| BPF_ST_MEM(BPF_B, 14, -1, -1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R14 is invalid", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid src register in LDX", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R12 is invalid", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid dst register in LDX", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R11 is invalid", | |
| .result = REJECT, | |
| }, | |
| { | |
| "junk insn", | |
| .insns = { | |
| BPF_RAW_INSN(0, 0, 0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid BPF_LD_IMM", | |
| .result = REJECT, | |
| }, | |
| { | |
| "junk insn2", | |
| .insns = { | |
| BPF_RAW_INSN(1, 0, 0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "BPF_LDX uses reserved fields", | |
| .result = REJECT, | |
| }, | |
| { | |
| "junk insn3", | |
| .insns = { | |
| BPF_RAW_INSN(-1, 0, 0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid BPF_ALU opcode f0", | |
| .result = REJECT, | |
| }, | |
| { | |
| "junk insn4", | |
| .insns = { | |
| BPF_RAW_INSN(-1, -1, -1, -1, -1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid BPF_ALU opcode f0", | |
| .result = REJECT, | |
| }, | |
| { | |
| "junk insn5", | |
| .insns = { | |
| BPF_RAW_INSN(0x7f, -1, -1, -1, -1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "BPF_ALU uses reserved fields", | |
| .result = REJECT, | |
| }, | |
| { | |
| "misaligned read from stack", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "misaligned stack access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid map_fd for function call", | |
| .insns = { | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
| BPF_ALU64_REG(BPF_MOV, 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_delete_elem), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "fd 0 is not pointing to valid bpf_map", | |
| .result = REJECT, | |
| }, | |
| { | |
| "don't check return value before access", | |
| .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_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "R0 invalid mem access 'map_value_or_null'", | |
| .result = REJECT, | |
| }, | |
| { | |
| "access memory with incorrect alignment", | |
| .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, 4, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "misaligned value access", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "sometimes access memory with incorrect alignment", | |
| .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, 2), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "R0 invalid mem access", | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "jump test 1", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "jump test 2", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 14), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 11), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 8), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 5), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "jump test 3", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 19), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 15), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 11), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 7), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_delete_elem), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 24 }, | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "jump test 4", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "jump test 5", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "access skb fields ok", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, len)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, pkt_type)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, queue_mapping)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, protocol)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, vlan_present)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, vlan_tci)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, napi_id)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "access skb fields bad1", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "access skb fields bad2", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), | |
| 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_JNE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, pkt_type)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .errstr = "different pointers", | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result = REJECT, | |
| }, | |
| { | |
| "access skb fields bad3", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, pkt_type)), | |
| BPF_EXIT_INSN(), | |
| 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_JNE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -12), | |
| }, | |
| .fixup_map1 = { 6 }, | |
| .errstr = "different pointers", | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result = REJECT, | |
| }, | |
| { | |
| "access skb fields bad4", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
| offsetof(struct __sk_buff, len)), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| 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_JNE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -13), | |
| }, | |
| .fixup_map1 = { 7 }, | |
| .errstr = "different pointers", | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid access __sk_buff family", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, family)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid access __sk_buff remote_ip4", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_ip4)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid access __sk_buff local_ip4", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_ip4)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid access __sk_buff remote_ip6", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_ip6)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid access __sk_buff local_ip6", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_ip6)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid access __sk_buff remote_port", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_port)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "invalid access __sk_buff remote_port", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_port)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "valid access __sk_buff family", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, family)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "valid access __sk_buff remote_ip4", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_ip4)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "valid access __sk_buff local_ip4", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_ip4)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "valid access __sk_buff remote_ip6", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_ip6[0])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_ip6[1])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_ip6[2])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_ip6[3])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "valid access __sk_buff local_ip6", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_ip6[0])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_ip6[1])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_ip6[2])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_ip6[3])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "valid access __sk_buff remote_port", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, remote_port)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "valid access __sk_buff remote_port", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, local_port)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "invalid access of tc_classid for SK_SKB", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_classid)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| .errstr = "invalid bpf_context access", | |
| }, | |
| { | |
| "invalid access of skb->mark for SK_SKB", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| .errstr = "invalid bpf_context access", | |
| }, | |
| { | |
| "check skb->mark is not writeable by SK_SKB", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| .errstr = "invalid bpf_context access", | |
| }, | |
| { | |
| "check skb->tc_index is writeable by SK_SKB", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, tc_index)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "check skb->priority is writeable by SK_SKB", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, priority)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "direct packet read for SK_SKB", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_SK_SKB, | |
| }, | |
| { | |
| "direct packet write for SK_SKB", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "overlapping checks for direct packet access SK_SKB", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), | |
| 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_1, BPF_REG_3, 1), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SK_SKB, | |
| }, | |
| { | |
| "check skb->mark is not writeable by sockets", | |
| .insns = { | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .errstr_unpriv = "R1 leaks addr", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check skb->tc_index is not writeable by sockets", | |
| .insns = { | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_index)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .errstr_unpriv = "R1 leaks addr", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check cb access: byte", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0]) + 1), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0]) + 2), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0]) + 3), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[1])), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[1]) + 1), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[1]) + 2), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[1]) + 3), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[2]) + 1), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[2]) + 2), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[2]) + 3), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3])), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3]) + 1), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3]) + 2), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3]) + 3), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4]) + 1), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4]) + 2), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4]) + 3), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0]) + 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0]) + 2), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0]) + 3), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[1])), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[1]) + 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[1]) + 2), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[1]) + 3), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2]) + 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2]) + 2), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2]) + 3), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[3])), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[3]) + 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[3]) + 2), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[3]) + 3), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4]) + 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4]) + 2), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4]) + 3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "__sk_buff->hash, offset 0, byte store not permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, hash)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "__sk_buff->tc_index, offset 3, byte store not permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, tc_index) + 3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check skb->hash byte load permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash)), | |
| #else | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash) + 3), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "check skb->hash byte load not permitted 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash) + 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check skb->hash byte load not permitted 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash) + 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check skb->hash byte load not permitted 3", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash) + 3), | |
| #else | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash)), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check cb access: byte, wrong type", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
| }, | |
| { | |
| "check cb access: half", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0]) + 2), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[1])), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[1]) + 2), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[2]) + 2), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3])), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3]) + 2), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4]) + 2), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0]) + 2), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[1])), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[1]) + 2), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2]) + 2), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[3])), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[3]) + 2), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4]) + 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "check cb access: half, unaligned", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0]) + 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "misaligned context access", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "check __sk_buff->hash, offset 0, half store not permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, hash)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check __sk_buff->tc_index, offset 2, half store not permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, tc_index) + 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check skb->hash half load permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash)), | |
| #else | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash) + 2), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "check skb->hash half load not permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash) + 2), | |
| #else | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, hash)), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check cb access: half, wrong type", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
| }, | |
| { | |
| "check cb access: word", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[1])), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3])), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[1])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[3])), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "check cb access: word, unaligned 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0]) + 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "misaligned context access", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "check cb access: word, unaligned 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4]) + 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "misaligned context access", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "check cb access: word, unaligned 3", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4]) + 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "misaligned context access", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "check cb access: word, unaligned 4", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4]) + 3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "misaligned context access", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "check cb access: double", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "check cb access: double, unaligned 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[1])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "misaligned context access", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "check cb access: double, unaligned 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "misaligned context access", | |
| .result = REJECT, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "check cb access: double, oob 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check cb access: double, oob 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check __sk_buff->ifindex dw store not permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, ifindex)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check __sk_buff->ifindex dw load not permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, ifindex)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "check cb access: double, wrong type", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
| }, | |
| { | |
| "check out of range skb->cb access", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0]) + 256), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access", | |
| .errstr_unpriv = "", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_ACT, | |
| }, | |
| { | |
| "write skb fields from socket prog", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[4])), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_index)), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[2])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .errstr_unpriv = "R1 leaks addr", | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "write skb fields from tc_cls_act prog", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_index)), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, tc_index)), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[3])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "PTR_TO_STACK store/load", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "PTR_TO_STACK store/load - bad alignment on off", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "misaligned stack access off (0x0; 0x0)+-8+2 size 8", | |
| }, | |
| { | |
| "PTR_TO_STACK store/load - bad alignment on reg", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "misaligned stack access off (0x0; 0x0)+-10+8 size 8", | |
| }, | |
| { | |
| "PTR_TO_STACK store/load - out of bounds low", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack off=-79992 size=8", | |
| .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", | |
| }, | |
| { | |
| "PTR_TO_STACK store/load - out of bounds high", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack off=0 size=8", | |
| }, | |
| { | |
| "unpriv: return pointer", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .errstr_unpriv = "R0 leaks addr", | |
| }, | |
| { | |
| "unpriv: add const to pointer", | |
| .insns = { | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: add pointer to pointer", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .errstr_unpriv = "R1 pointer += pointer", | |
| }, | |
| { | |
| "unpriv: neg pointer", | |
| .insns = { | |
| BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .errstr_unpriv = "R1 pointer arithmetic", | |
| }, | |
| { | |
| "unpriv: cmp pointer with const", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .errstr_unpriv = "R1 pointer comparison", | |
| }, | |
| { | |
| "unpriv: cmp pointer with pointer", | |
| .insns = { | |
| BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .errstr_unpriv = "R10 pointer comparison", | |
| }, | |
| { | |
| "unpriv: check that printk is disallowed", | |
| .insns = { | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
| BPF_MOV64_IMM(BPF_REG_2, 8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_trace_printk), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "unknown func bpf_trace_printk#6", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: pass pointer to helper function", | |
| .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_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_update_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr_unpriv = "R4 leaks addr", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: indirectly pass pointer on stack to helper function", | |
| .insns = { | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
| 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_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "invalid indirect read from stack off -8+0 size 8", | |
| .result = REJECT, | |
| }, | |
| { | |
| "unpriv: mangle pointer on stack 1", | |
| .insns = { | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
| BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "attempt to corrupt spilled", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: mangle pointer on stack 2", | |
| .insns = { | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
| BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "attempt to corrupt spilled", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: read pointer from stack in small chunks", | |
| .insns = { | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid size", | |
| .result = REJECT, | |
| }, | |
| { | |
| "unpriv: write pointer into ctx", | |
| .insns = { | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R1 leaks addr", | |
| .result_unpriv = REJECT, | |
| .errstr = "invalid bpf_context access", | |
| .result = REJECT, | |
| }, | |
| { | |
| "unpriv: spill/fill of ctx", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: spill/fill of ctx 2", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_get_hash_recalc), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "unpriv: spill/fill of ctx 3", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_get_hash_recalc), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R1 type=fp expected=ctx", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "unpriv: spill/fill of ctx 4", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10, | |
| BPF_REG_0, -8, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_get_hash_recalc), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R1 type=inv expected=ctx", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "unpriv: spill/fill of different pointers stx", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_3, 42), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
| BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "same insn cannot be used with different pointers", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "unpriv: spill/fill of different pointers ldx", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, | |
| -(__s32)offsetof(struct bpf_perf_event_data, | |
| sample_period) - 8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
| BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, | |
| offsetof(struct bpf_perf_event_data, | |
| sample_period)), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "same insn cannot be used with different pointers", | |
| .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
| }, | |
| { | |
| "unpriv: write pointer into map elem value", | |
| .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_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: partial copy of pointer", | |
| .insns = { | |
| BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R10 partial copy", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: pass pointer to tail_call", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
| BPF_LD_MAP_FD(BPF_REG_2, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_tail_call), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_prog = { 1 }, | |
| .errstr_unpriv = "R3 leaks addr into helper", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: cmp map pointer with zero", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 1 }, | |
| .errstr_unpriv = "R1 pointer comparison", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: write into frame pointer", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "frame pointer is read only", | |
| .result = REJECT, | |
| }, | |
| { | |
| "unpriv: spill/fill frame pointer", | |
| .insns = { | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "frame pointer is read only", | |
| .result = REJECT, | |
| }, | |
| { | |
| "unpriv: cmp of frame pointer", | |
| .insns = { | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R10 pointer comparison", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "unpriv: adding of fp", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_MOV64_IMM(BPF_REG_1, 0), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", | |
| }, | |
| { | |
| "unpriv: cmp of stack pointer", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R2 pointer comparison", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "runtime/jit: pass negative index to tail_call", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_3, -1), | |
| BPF_LD_MAP_FD(BPF_REG_2, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_tail_call), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_prog = { 1 }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "runtime/jit: pass > 32bit index to tail_call", | |
| .insns = { | |
| BPF_LD_IMM64(BPF_REG_3, 0x100000000ULL), | |
| BPF_LD_MAP_FD(BPF_REG_2, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_tail_call), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_prog = { 2 }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "stack pointer arithmetic", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 4), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
| BPF_MOV64_REG(BPF_REG_7, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1), | |
| BPF_ST_MEM(0, BPF_REG_2, 4, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | |
| BPF_ST_MEM(0, BPF_REG_2, 4, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "raw_stack: no skb_load_bytes", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| /* Call to skb_load_bytes() omitted. */ | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid read from stack off -8+0 size 8", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, negative len", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, -8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, negative len 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, ~0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, zero len", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack type R3", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, no init", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, init", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, spilled regs around bounds", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
| offsetof(struct __sk_buff, priority)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, spilled regs corruption", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R0 invalid mem access 'inv'", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, spilled regs corruption 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
| offsetof(struct __sk_buff, priority)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, | |
| offsetof(struct __sk_buff, pkt_type)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R3 invalid mem access 'inv'", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, spilled regs + data", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
| offsetof(struct __sk_buff, priority)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack type R3 off=-513 access_size=8", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack type R3 off=-1 access_size=8", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 3", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 4", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 5", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 6", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack type R3 off=-512 access_size=0", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, large access", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 512), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "context stores via ST", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_1, offsetof(struct __sk_buff, mark), 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "BPF_ST stores into R1 context is not allowed", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "context stores via XADD", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_W, BPF_REG_1, | |
| BPF_REG_0, offsetof(struct __sk_buff, mark), 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "BPF_XADD stores into R1 context is not allowed", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test1", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), | |
| BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), | |
| BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 49), | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 49), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test3", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid bpf_context access off=76", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, | |
| }, | |
| { | |
| "direct packet access: test4 (write)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test5 (pkt_end >= reg, good access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| 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_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test6 (pkt_end >= reg, bad access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid access to packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test7 (pkt_end >= reg, both accesses)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid access to packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test8 (double test, variant 1)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4), | |
| 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, 1), | |
| BPF_EXIT_INSN(), | |
| 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_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test9 (double test, variant 2)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| 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_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_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test10 (write invalid)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid access to packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test11 (shift, good access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 144), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3), | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test12 (and, good access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 144), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test13 (branches, good access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_MOV64_IMM(BPF_REG_4, 1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 14), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
| BPF_MOV64_IMM(BPF_REG_3, 24), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7), | |
| BPF_MOV64_IMM(BPF_REG_5, 12), | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4), | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test15 (spill with xadd)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
| BPF_MOV64_IMM(BPF_REG_5, 4096), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0), | |
| BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0), | |
| BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R2 invalid mem access 'inv'", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test16 (arith on data_end)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 16), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
| BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid access to packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test17 (pruning, alignment)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 14), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 1, 4), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
| BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, -4), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), | |
| BPF_JMP_A(-6), | |
| }, | |
| .errstr = "misaligned packet access off 2+(0x0; 0x0)+15+-4 size 4", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
| }, | |
| { | |
| "direct packet access: test18 (imm += pkt_ptr, 1)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_IMM(BPF_REG_0, 8), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
| BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test19 (imm += pkt_ptr, 2)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3), | |
| BPF_MOV64_IMM(BPF_REG_4, 4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), | |
| BPF_STX_MEM(BPF_B, BPF_REG_4, BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test20 (x += pkt_ptr, 1)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0x7fff), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "direct packet access: test21 (x += pkt_ptr, 2)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 9), | |
| BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 0x7fff), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "direct packet access: test22 (x += pkt_ptr, 3)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_3, -16), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_10, -16), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 11), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), | |
| BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | |
| BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_4, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 49), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), | |
| BPF_MOV64_IMM(BPF_REG_2, 1), | |
| BPF_STX_MEM(BPF_H, BPF_REG_4, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "direct packet access: test23 (x += pkt_ptr, 4)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffff), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_0, 31), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0xffff - 1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet, off=0 size=8, R5(id=1,off=0,r=0)", | |
| }, | |
| { | |
| "direct packet access: test24 (x += pkt_ptr, 5)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_0, 64), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7fff - 1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "direct packet access: test25 (marking on <, good access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -4), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test26 (marking on <, bad access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 3), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -3), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test27 (marking on <=, good access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "direct packet access: test28 (marking on <=, bad access)", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -4), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test1, valid packet_ptr range", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct xdp_md, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct xdp_md, data_end)), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_update_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 5 }, | |
| .result_unpriv = ACCEPT, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| { | |
| "helper access to packet: test2, unchecked packet_ptr", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct xdp_md, data)), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 1 }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| { | |
| "helper access to packet: test3, variable add", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct xdp_md, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct xdp_md, data_end)), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 11 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| { | |
| "helper access to packet: test4, packet_ptr with bad range", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct xdp_md, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct xdp_md, data_end)), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 7 }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| { | |
| "helper access to packet: test5, packet_ptr with too short range", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct xdp_md, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct xdp_md, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 6 }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| { | |
| "helper access to packet: test6, cls valid packet_ptr range", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_update_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 5 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test7, cls unchecked packet_ptr", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 1 }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test8, cls variable add", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 11 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test9, cls packet_ptr with bad range", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 7 }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test10, cls packet_ptr with too short range", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 6 }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test11, cls unsuitable helper 1", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 42), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_store_bytes), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "helper access to the packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test12, cls unsuitable helper 2", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 4), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "helper access to the packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test13, cls helper ok", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test14, cls helper ok sub", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test15, cls helper fail sub", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 12), | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test16, cls helper fail range 1", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_2, 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test17, cls helper fail range 2", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_2, -9), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R2 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test18, cls helper fail range 3", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_2, ~0), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R2 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test19, cls helper fail range zero", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test20, pkt end as input", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R1 type=pkt_end expected=fp", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to packet: test21, wrong reg", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_csum_diff), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid access to packet", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "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_map2 = { 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_map2 = { 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_map2 = { 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_JMP_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_map2 = { 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_map2 = { 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_map2 = { 3 }, | |
| .errstr = "R0 min value is outside of the array 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_map2 = { 3 }, | |
| .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map", | |
| .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_map2 = { 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_map2 = { 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_map2 = { 3, 11 }, | |
| .errstr_unpriv = "R0 pointer += pointer", | |
| .errstr = "R0 invalid mem access 'inv'", | |
| .result_unpriv = REJECT, | |
| .result = REJECT, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "multiple registers share map_lookup_elem result", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 10), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
| 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_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
| }, | |
| { | |
| "alu ops on ptr_to_map_value_or_null, 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 10), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
| 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_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .errstr = "R4 invalid mem access", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
| }, | |
| { | |
| "alu ops on ptr_to_map_value_or_null, 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 10), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
| 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_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_4, -1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .errstr = "R4 invalid mem access", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
| }, | |
| { | |
| "alu ops on ptr_to_map_value_or_null, 3", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 10), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
| 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_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 1), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .errstr = "R4 invalid mem access", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
| }, | |
| { | |
| "invalid memory access with multiple map_lookup_elem calls", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 10), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
| 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_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
| BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
| 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_4, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .result = REJECT, | |
| .errstr = "R4 !read_ok", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
| }, | |
| { | |
| "valid indirect map_lookup_elem access with 2nd lookup in branch", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 10), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
| 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_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
| BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_2, 10), | |
| BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
| }, | |
| { | |
| "invalid map access from else condition", | |
| .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_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 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_map2 = { 3 }, | |
| .errstr = "R0 unbounded memory access", | |
| .result = REJECT, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result_unpriv = REJECT, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "constant register |= constant should keep constant type", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
| BPF_MOV64_IMM(BPF_REG_2, 34), | |
| BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "constant register |= constant should not bypass stack boundary checks", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
| BPF_MOV64_IMM(BPF_REG_2, 34), | |
| BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack type R1 off=-48 access_size=58", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "constant register |= constant register should keep constant type", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
| BPF_MOV64_IMM(BPF_REG_2, 34), | |
| BPF_MOV64_IMM(BPF_REG_4, 13), | |
| BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "constant register |= constant register should not bypass stack boundary checks", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
| BPF_MOV64_IMM(BPF_REG_2, 34), | |
| BPF_MOV64_IMM(BPF_REG_4, 24), | |
| BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack type R1 off=-48 access_size=58", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "invalid direct packet write for LWT_IN", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "cannot write into packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_LWT_IN, | |
| }, | |
| { | |
| "invalid direct packet write for LWT_OUT", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "cannot write into packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_LWT_OUT, | |
| }, | |
| { | |
| "direct packet write for LWT_XMIT", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
| }, | |
| { | |
| "direct packet read for LWT_IN", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_LWT_IN, | |
| }, | |
| { | |
| "direct packet read for LWT_OUT", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_LWT_OUT, | |
| }, | |
| { | |
| "direct packet read for LWT_XMIT", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_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_LWT_XMIT, | |
| }, | |
| { | |
| "overlapping checks for direct packet access", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
| offsetof(struct __sk_buff, data_end)), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), | |
| 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_1, BPF_REG_3, 1), | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
| }, | |
| { | |
| "invalid access of tc_classid for LWT_IN", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_classid)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid bpf_context access", | |
| }, | |
| { | |
| "invalid access of tc_classid for LWT_OUT", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_classid)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid bpf_context access", | |
| }, | |
| { | |
| "invalid access of tc_classid for LWT_XMIT", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_classid)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid bpf_context access", | |
| }, | |
| { | |
| "leak pointer into ctx 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_LD_MAP_FD(BPF_REG_2, 0), | |
| BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_2, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 2 }, | |
| .errstr_unpriv = "R2 leaks addr into mem", | |
| .result_unpriv = REJECT, | |
| .result = REJECT, | |
| .errstr = "BPF_XADD stores into R1 context is not allowed", | |
| }, | |
| { | |
| "leak pointer into ctx 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_10, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr_unpriv = "R10 leaks addr into mem", | |
| .result_unpriv = REJECT, | |
| .result = REJECT, | |
| .errstr = "BPF_XADD stores into R1 context is not allowed", | |
| }, | |
| { | |
| "leak pointer into ctx 3", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_2, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, | |
| offsetof(struct __sk_buff, cb[0])), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 1 }, | |
| .errstr_unpriv = "R2 leaks addr into ctx", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "leak pointer into map val", | |
| .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, 3), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0), | |
| BPF_STX_XADD(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .errstr_unpriv = "R6 leaks addr into mem", | |
| .result_unpriv = REJECT, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "helper access to map: full range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: partial range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_2, 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: empty range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "invalid access to map value, value_size=48 off=0 size=0", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: out-of-bound range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "invalid access to map value, value_size=48 off=0 size=56", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: negative range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_2, -8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R2 min value is negative", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const imm): full range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_2, | |
| sizeof(struct test_val) - | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const imm): partial range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_2, 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const imm): empty range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "invalid access to map value, value_size=48 off=4 size=0", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const imm): out-of-bound range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_2, | |
| sizeof(struct test_val) - | |
| offsetof(struct test_val, foo) + 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "invalid access to map value, value_size=48 off=4 size=52", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const imm): negative range (> adjustment)", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_2, -8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R2 min value is negative", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const imm): negative range (< adjustment)", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R2 min value is negative", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const reg): full range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(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_3, | |
| offsetof(struct test_val, foo)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, | |
| sizeof(struct test_val) - | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const reg): partial range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(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_3, | |
| offsetof(struct test_val, foo)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const reg): empty range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(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_3, 0), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R1 min value is outside of the array range", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const reg): out-of-bound range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(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_3, | |
| offsetof(struct test_val, foo)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, | |
| sizeof(struct test_val) - | |
| offsetof(struct test_val, foo) + 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "invalid access to map value, value_size=48 off=4 size=52", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const reg): negative range (> adjustment)", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(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_3, | |
| offsetof(struct test_val, foo)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, -8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R2 min value is negative", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via const reg): negative range (< adjustment)", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(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_3, | |
| offsetof(struct test_val, foo)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R2 min value is negative", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via variable): full range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
| offsetof(struct test_val, foo), 4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, | |
| sizeof(struct test_val) - | |
| offsetof(struct test_val, foo)), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via variable): partial range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
| offsetof(struct test_val, foo), 4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via variable): empty range", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
| offsetof(struct test_val, foo), 4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R1 min value is outside of the array range", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via variable): no max check", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(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_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, 1), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R1 unbounded memory access", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to adjusted map (via variable): wrong max check", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
| offsetof(struct test_val, foo), 4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_MOV64_IMM(BPF_REG_2, | |
| sizeof(struct test_val) - | |
| offsetof(struct test_val, foo) + 1), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "invalid access to map value, value_size=48 off=4 size=45", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using <, good access", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using <, bad access", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = REJECT, | |
| .errstr = "R1 unbounded memory access", | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using <=, good access", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using <=, bad access", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 4), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = REJECT, | |
| .errstr = "R1 unbounded memory access", | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using s<, good access", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 0, -3), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using s<, good access 2", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using s<, bad access", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = REJECT, | |
| .errstr = "R1 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using s<=, good access", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0, -3), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using s<=, good access 2", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to map: bounds check using s<=, bad access", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
| BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = REJECT, | |
| .errstr = "R1 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "map element value is preserved across register spilling", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "map element value or null is marked on register spilling", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "map element value store of cleared call register", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R1 !read_ok", | |
| .errstr = "R1 !read_ok", | |
| .result = REJECT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "map element value with unaligned store", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44), | |
| BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24), | |
| BPF_MOV64_REG(BPF_REG_7, BPF_REG_8), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "map element value with unaligned load", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2), | |
| BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "map element value illegal alu op, 1", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 bitwise operator &= on pointer", | |
| .errstr = "invalid mem access 'inv'", | |
| .result = REJECT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "map element value illegal alu op, 2", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
| BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 32-bit pointer arithmetic prohibited", | |
| .errstr = "invalid mem access 'inv'", | |
| .result = REJECT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "map element value illegal alu op, 3", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
| BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 pointer arithmetic with /= operator", | |
| .errstr = "invalid mem access 'inv'", | |
| .result = REJECT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "map element value illegal alu op, 4", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
| BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
| .errstr = "invalid mem access 'inv'", | |
| .result = REJECT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "map element value illegal alu op, 5", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
| BPF_MOV64_IMM(BPF_REG_3, 4096), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0), | |
| BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R0 invalid mem access 'inv'", | |
| .result = REJECT, | |
| }, | |
| { | |
| "map element value is preserved across register spilling", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, | |
| offsetof(struct test_val, foo)), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "helper access to variable memory: stack, bitwise AND + JMP, correct bounds", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, bitwise AND, zero included", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack type R1 off=-64 access_size=0", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, bitwise AND + JMP, wrong max", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack type R1 off=-64 access_size=65", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, JMP, correct bounds", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, JMP (signed), correct bounds", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, JMP, bounds + offset", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack type R1 off=-64 access_size=65", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, JMP, wrong max", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack type R1 off=-64 access_size=65", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, JMP, no max check", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| /* because max wasn't checked, signed min is negative */ | |
| .errstr = "R2 min value is negative, either use unsigned or 'var &= const'", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, JMP, no min check", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack type R1 off=-64 access_size=0", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: stack, JMP (signed), no min check", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_2, 16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R2 min value is negative", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: map, JMP, correct bounds", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
| sizeof(struct test_val), 4), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: map, JMP, wrong max", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
| sizeof(struct test_val) + 1, 4), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "invalid access to map value, value_size=48 off=0 size=49", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: map adjusted, JMP, correct bounds", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | |
| BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
| sizeof(struct test_val) - 20, 4), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: map adjusted, JMP, wrong max", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | |
| BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
| sizeof(struct test_val) - 19, 4), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R1 min value is outside of the array range", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: size = 0 allowed on NULL", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 0), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to variable memory: size > 0 not allowed on NULL", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_1, 0), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R1 type=inv expected=fp", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to variable memory: size = 0 not allowed on != NULL", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid stack type R1 off=-8 access_size=0", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "helper access to variable memory: 8 bytes leak", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "invalid indirect read from stack off -64+32 size 64", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "helper access to variable memory: 8 bytes no leak (init memory)", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
| }, | |
| { | |
| "invalid and of negative number", | |
| .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_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_ALU64_IMM(BPF_AND, 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_map2 = { 3 }, | |
| .errstr = "R0 max value is outside of the array range", | |
| .result = REJECT, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "invalid range 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, 12), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_MOV64_IMM(BPF_REG_9, 1), | |
| BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2), | |
| BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1), | |
| BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1), | |
| BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1), | |
| BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1), | |
| BPF_MOV32_IMM(BPF_REG_3, 1), | |
| BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9), | |
| BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
| BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0), | |
| BPF_MOV64_REG(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr = "R0 max value is outside of the array range", | |
| .result = REJECT, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "map in map access", | |
| .insns = { | |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
| 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_ST_MEM(0, BPF_REG_10, -4, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map_in_map = { 3 }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "invalid inner map pointer", | |
| .insns = { | |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
| 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_ST_MEM(0, BPF_REG_10, -4, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map_in_map = { 3 }, | |
| .errstr = "R1 type=inv expected=map_ptr", | |
| .errstr_unpriv = "R1 pointer arithmetic on CONST_PTR_TO_MAP prohibited", | |
| .result = REJECT, | |
| }, | |
| { | |
| "forgot null checking on the inner map pointer", | |
| .insns = { | |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map_in_map = { 3 }, | |
| .errstr = "R1 type=map_value_or_null expected=map_ptr", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_abs: check calling conv, r1", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_1, 0), | |
| BPF_LD_ABS(BPF_W, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R1 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_abs: check calling conv, r2", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_LD_ABS(BPF_W, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R2 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_abs: check calling conv, r3", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_3, 0), | |
| BPF_LD_ABS(BPF_W, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R3 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_abs: check calling conv, r4", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_LD_ABS(BPF_W, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R4 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_abs: check calling conv, r5", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_LD_ABS(BPF_W, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_5), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R5 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_abs: check calling conv, r7", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_7, 0), | |
| BPF_LD_ABS(BPF_W, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_7), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "ld_ind: check calling conv, r1", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_1, 1), | |
| BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R1 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_ind: check calling conv, r2", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_2, 1), | |
| BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R2 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_ind: check calling conv, r3", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_3, 1), | |
| BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R3 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_ind: check calling conv, r4", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_4, 1), | |
| BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R4 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_ind: check calling conv, r5", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_5, 1), | |
| BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_5), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R5 !read_ok", | |
| .result = REJECT, | |
| }, | |
| { | |
| "ld_ind: check calling conv, r7", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
| BPF_MOV64_IMM(BPF_REG_7, 1), | |
| BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_7), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "check bpf_perf_event_data->sample_period byte load permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct bpf_perf_event_data, sample_period)), | |
| #else | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct bpf_perf_event_data, sample_period) + 7), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
| }, | |
| { | |
| "check bpf_perf_event_data->sample_period half load permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct bpf_perf_event_data, sample_period)), | |
| #else | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct bpf_perf_event_data, sample_period) + 6), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
| }, | |
| { | |
| "check bpf_perf_event_data->sample_period word load permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct bpf_perf_event_data, sample_period)), | |
| #else | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct bpf_perf_event_data, sample_period) + 4), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
| }, | |
| { | |
| "check bpf_perf_event_data->sample_period dword load permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct bpf_perf_event_data, sample_period)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
| }, | |
| { | |
| "check skb->data half load not permitted", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, data)), | |
| #else | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, data) + 2), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid bpf_context access", | |
| }, | |
| { | |
| "check skb->tc_classid half load not permitted for lwt prog", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| #if __BYTE_ORDER == __LITTLE_ENDIAN | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_classid)), | |
| #else | |
| BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, tc_classid) + 2), | |
| #endif | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid bpf_context access", | |
| .prog_type = BPF_PROG_TYPE_LWT_IN, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, positive bounds", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, 2), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 3), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 4, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 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, 9), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5), | |
| BPF_MOV64_IMM(BPF_REG_8, 0), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_1), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | |
| BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 3", | |
| .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, 8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 4), | |
| BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | |
| BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 4", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, 1), | |
| BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 5", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 4), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 6", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -512), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_6, -1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_6, 5), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_4, 1, 4), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1), | |
| BPF_MOV64_IMM(BPF_REG_5, 0), | |
| BPF_ST_MEM(BPF_H, BPF_REG_10, -512, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_skb_load_bytes), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R4 min value is negative, either use unsigned", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 7", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 8", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 9", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_LD_IMM64(BPF_REG_2, -9223372036854775808ULL), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 10", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, 0), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 11", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), | |
| /* Dead branch. */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 12", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -6), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 13", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, 2), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), | |
| BPF_MOV64_IMM(BPF_REG_7, 1), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 0, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_1), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 4, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_7), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 14", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| 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, 8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -1), | |
| BPF_MOV64_IMM(BPF_REG_8, 2), | |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 42, 6), | |
| BPF_JMP_REG(BPF_JSGT, BPF_REG_8, BPF_REG_1, 3), | |
| BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, -3), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, -7), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .errstr = "R0 invalid mem access 'inv'", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds checks mixing signed and unsigned, variant 15", | |
| .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_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
| BPF_MOV64_IMM(BPF_REG_2, -6), | |
| BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 1, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "unbounded min value", | |
| .result = REJECT, | |
| .result_unpriv = REJECT, | |
| }, | |
| { | |
| "subtraction bounds (map value) variant 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, 9), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 7), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 5), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3), | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 56), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "R0 max value is outside of the array range", | |
| .result = REJECT, | |
| }, | |
| { | |
| "subtraction bounds (map value) variant 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, 8), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 6), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1), | |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 4), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | |
| .result = REJECT, | |
| }, | |
| { | |
| "bounds check based on zero-extended MOV", | |
| .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), | |
| /* r2 = 0x0000'0000'ffff'ffff */ | |
| BPF_MOV32_IMM(BPF_REG_2, 0xffffffff), | |
| /* r2 = 0 */ | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 32), | |
| /* no-op */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| /* access at offset 0 */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = ACCEPT | |
| }, | |
| { | |
| "bounds check based on sign-extended MOV. test1", | |
| .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), | |
| /* r2 = 0xffff'ffff'ffff'ffff */ | |
| BPF_MOV64_IMM(BPF_REG_2, 0xffffffff), | |
| /* r2 = 0xffff'ffff */ | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 32), | |
| /* r0 = <oob pointer> */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| /* access to OOB pointer */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "map_value pointer and 4294967295", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check based on sign-extended MOV. test2", | |
| .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), | |
| /* r2 = 0xffff'ffff'ffff'ffff */ | |
| BPF_MOV64_IMM(BPF_REG_2, 0xffffffff), | |
| /* r2 = 0xfff'ffff */ | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 36), | |
| /* r0 = <oob pointer> */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| /* access to OOB pointer */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "R0 min value is outside of the array range", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check based on reg_off + var_off + insn_off. test1", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| 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_ALU64_IMM(BPF_AND, BPF_REG_6, 1), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, (1 << 29) - 1), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, (1 << 29) - 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 3), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .errstr = "value_size=8 off=1073741825", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "bounds check based on reg_off + var_off + insn_off. test2", | |
| .insns = { | |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| 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_ALU64_IMM(BPF_AND, BPF_REG_6, 1), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, (1 << 30) - 1), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, (1 << 29) - 1), | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 3), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 4 }, | |
| .errstr = "value 1073741823", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "bounds check after truncation of non-boundary-crossing range", | |
| .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), | |
| /* r1 = [0x00, 0xff] */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_MOV64_IMM(BPF_REG_2, 1), | |
| /* r2 = 0x10'0000'0000 */ | |
| BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 36), | |
| /* r1 = [0x10'0000'0000, 0x10'0000'00ff] */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2), | |
| /* r1 = [0x10'7fff'ffff, 0x10'8000'00fe] */ | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff), | |
| /* r1 = [0x00, 0xff] */ | |
| BPF_ALU32_IMM(BPF_SUB, BPF_REG_1, 0x7fffffff), | |
| /* r1 = 0 */ | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8), | |
| /* no-op */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| /* access at offset 0 */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = ACCEPT | |
| }, | |
| { | |
| "bounds check after truncation of boundary-crossing range (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, 9), | |
| /* r1 = [0x00, 0xff] */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1), | |
| /* r1 = [0xffff'ff80, 0x1'0000'007f] */ | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1), | |
| /* r1 = [0xffff'ff80, 0xffff'ffff] or | |
| * [0x0000'0000, 0x0000'007f] | |
| */ | |
| BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 0), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1), | |
| /* r1 = [0x00, 0xff] or | |
| * [0xffff'ffff'0000'0080, 0xffff'ffff'ffff'ffff] | |
| */ | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1), | |
| /* r1 = 0 or | |
| * [0x00ff'ffff'ff00'0000, 0x00ff'ffff'ffff'ffff] | |
| */ | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8), | |
| /* no-op or OOB pointer computation */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| /* potentially OOB access */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| /* not actually fully unbounded, but the bound is very high */ | |
| .errstr = "R0 unbounded memory access", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check after truncation of boundary-crossing range (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, 9), | |
| /* r1 = [0x00, 0xff] */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1), | |
| /* r1 = [0xffff'ff80, 0x1'0000'007f] */ | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1), | |
| /* r1 = [0xffff'ff80, 0xffff'ffff] or | |
| * [0x0000'0000, 0x0000'007f] | |
| * difference to previous test: truncation via MOV32 | |
| * instead of ALU32. | |
| */ | |
| BPF_MOV32_REG(BPF_REG_1, BPF_REG_1), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1), | |
| /* r1 = [0x00, 0xff] or | |
| * [0xffff'ffff'0000'0080, 0xffff'ffff'ffff'ffff] | |
| */ | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1), | |
| /* r1 = 0 or | |
| * [0x00ff'ffff'ff00'0000, 0x00ff'ffff'ffff'ffff] | |
| */ | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8), | |
| /* no-op or OOB pointer computation */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| /* potentially OOB access */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| /* not actually fully unbounded, but the bound is very high */ | |
| .errstr = "R0 unbounded memory access", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check after wrapping 32-bit addition", | |
| .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), | |
| /* r1 = 0x7fff'ffff */ | |
| BPF_MOV64_IMM(BPF_REG_1, 0x7fffffff), | |
| /* r1 = 0xffff'fffe */ | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff), | |
| /* r1 = 0 */ | |
| BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 2), | |
| /* no-op */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| /* access at offset 0 */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = ACCEPT | |
| }, | |
| { | |
| "bounds check after shift with oversized count operand", | |
| .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_IMM(BPF_REG_2, 32), | |
| BPF_MOV64_IMM(BPF_REG_1, 1), | |
| /* r1 = (u32)1 << (u32)32 = ? */ | |
| BPF_ALU32_REG(BPF_LSH, BPF_REG_1, BPF_REG_2), | |
| /* r1 = [0x0000, 0xffff] */ | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_1, 0xffff), | |
| /* computes unknown pointer, potentially OOB */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| /* potentially OOB access */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "R0 max value is outside of the array range", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check after right shift of maybe-negative number", | |
| .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), | |
| /* r1 = [0x00, 0xff] */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| /* r1 = [-0x01, 0xfe] */ | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 1), | |
| /* r1 = 0 or 0xff'ffff'ffff'ffff */ | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8), | |
| /* r1 = 0 or 0xffff'ffff'ffff */ | |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8), | |
| /* computes unknown pointer, potentially OOB */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| /* potentially OOB access */ | |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | |
| /* exit */ | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "R0 unbounded memory access", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check map access with off+size signed 32bit overflow. test1", | |
| .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_JNE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7ffffffe), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
| BPF_JMP_A(0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "map_value pointer and 2147483646", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check map access with off+size signed 32bit overflow. test2", | |
| .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_JNE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
| BPF_JMP_A(0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "pointer offset 1073741822", | |
| .errstr_unpriv = "R0 pointer arithmetic of map value goes out of range", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check map access with off+size signed 32bit overflow. test3", | |
| .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_JNE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 0x1fffffff), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 0x1fffffff), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 2), | |
| BPF_JMP_A(0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "pointer offset -1073741822", | |
| .errstr_unpriv = "R0 pointer arithmetic of map value goes out of range", | |
| .result = REJECT | |
| }, | |
| { | |
| "bounds check map access with off+size signed 32bit overflow. test4", | |
| .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_JNE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_1, 1000000), | |
| BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 1000000), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 2), | |
| BPF_JMP_A(0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .errstr = "map_value pointer and 1000000000000", | |
| .result = REJECT | |
| }, | |
| { | |
| "pointer/scalar confusion in state equality check (way 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, 2), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
| BPF_JMP_A(1), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), | |
| BPF_JMP_A(0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .errstr_unpriv = "R0 leaks addr as return value" | |
| }, | |
| { | |
| "pointer/scalar confusion in state equality check (way 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_JNE, BPF_REG_0, 0, 2), | |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), | |
| BPF_JMP_A(1), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = ACCEPT, | |
| .result_unpriv = REJECT, | |
| .errstr_unpriv = "R0 leaks addr as return value" | |
| }, | |
| { | |
| "variable-offset ctx access", | |
| .insns = { | |
| /* Get an unknown value */ | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), | |
| /* Make it small and 4-byte aligned */ | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4), | |
| /* add it to skb. We now have either &skb->len or | |
| * &skb->pkt_type, but we don't know which | |
| */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2), | |
| /* dereference it */ | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "variable ctx access var_off=(0x0; 0x4)", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_LWT_IN, | |
| }, | |
| { | |
| "variable-offset stack access", | |
| .insns = { | |
| /* Fill the top 8 bytes of the stack */ | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
| /* Get an unknown value */ | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), | |
| /* Make it small and 4-byte aligned */ | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 8), | |
| /* add it to fp. We now have either fp-4 or fp-8, but | |
| * we don't know which | |
| */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10), | |
| /* dereference it */ | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "variable stack access var_off=(0xfffffffffffffff8; 0x4)", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_LWT_IN, | |
| }, | |
| { | |
| "indirect variable-offset stack access", | |
| .insns = { | |
| /* Fill the top 8 bytes of the stack */ | |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
| /* Get an unknown value */ | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), | |
| /* Make it small and 4-byte aligned */ | |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4), | |
| BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 8), | |
| /* add it to fp. We now have either fp-4 or fp-8, but | |
| * we don't know which | |
| */ | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10), | |
| /* dereference it indirectly */ | |
| BPF_LD_MAP_FD(BPF_REG_1, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
| BPF_FUNC_map_lookup_elem), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 5 }, | |
| .errstr = "variable stack read R2", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_LWT_IN, | |
| }, | |
| { | |
| "direct stack access with 32-bit wraparound. test1", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff), | |
| BPF_MOV32_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_EXIT_INSN() | |
| }, | |
| .errstr = "fp pointer and 2147483647", | |
| .result = REJECT | |
| }, | |
| { | |
| "direct stack access with 32-bit wraparound. test2", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x3fffffff), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x3fffffff), | |
| BPF_MOV32_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_EXIT_INSN() | |
| }, | |
| .errstr = "fp pointer and 1073741823", | |
| .result = REJECT | |
| }, | |
| { | |
| "direct stack access with 32-bit wraparound. test3", | |
| .insns = { | |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x1fffffff), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x1fffffff), | |
| BPF_MOV32_IMM(BPF_REG_0, 0), | |
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | |
| BPF_EXIT_INSN() | |
| }, | |
| .errstr = "fp pointer offset 1073741822", | |
| .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", | |
| .result = REJECT | |
| }, | |
| { | |
| "liveness pruning and write screening", | |
| .insns = { | |
| /* Get an unknown value */ | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), | |
| /* branch conditions teach us nothing about R2 */ | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "R0 !read_ok", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_LWT_IN, | |
| }, | |
| { | |
| "varlen_map_value_access pruning", | |
| .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, 8), | |
| 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_JMP_IMM(BPF_JA, 0, 0, 0), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
| offsetof(struct test_val, foo)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map2 = { 3 }, | |
| .errstr_unpriv = "R0 leaks addr", | |
| .errstr = "R0 unbounded memory access", | |
| .result_unpriv = REJECT, | |
| .result = REJECT, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "invalid 64-bit BPF_END", | |
| .insns = { | |
| BPF_MOV32_IMM(BPF_REG_0, 0), | |
| { | |
| .code = BPF_ALU64 | BPF_END | BPF_TO_LE, | |
| .dst_reg = BPF_REG_0, | |
| .src_reg = 0, | |
| .off = 0, | |
| .imm = 32, | |
| }, | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "BPF_END uses reserved fields", | |
| .result = REJECT, | |
| }, | |
| { | |
| "arithmetic ops make PTR_TO_CTX unusable", | |
| .insns = { | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
| offsetof(struct __sk_buff, data) - | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .errstr = "dereference of modified ctx ptr R1 off=68+8, ctx+const is allowed, ctx+const+const is not", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "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 = "R1 offset is outside of the packet", | |
| .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 = "R1 offset is outside of the packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| { | |
| "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_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, | |
| }, | |
| { | |
| "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, | |
| }, | |
| { | |
| "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', 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_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(), | |
| }, | |
| .errstr = "R1 offset is outside of the packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| { | |
| "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, | |
| }, | |
| { | |
| "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, 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_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(), | |
| }, | |
| .errstr = "R1 offset is outside of the packet", | |
| .result = REJECT, | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| { | |
| "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, | |
| }, | |
| { | |
| "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_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, | |
| }, | |
| { | |
| "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, | |
| }, | |
| { | |
| "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, 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_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, | |
| }, | |
| { | |
| "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_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_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, | |
| }, | |
| { | |
| "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, | |
| }, | |
| { | |
| "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_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, | |
| }, | |
| { | |
| "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, | |
| }, | |
| { | |
| "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', 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_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, | |
| }, | |
| { | |
| "check deducing bounds from const, 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 1, 0), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R0 tried to subtract pointer from scalar", | |
| }, | |
| { | |
| "check deducing bounds from const, 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 1, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_0, 1, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "check deducing bounds from const, 3", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_0, 0, 0), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R0 tried to subtract pointer from scalar", | |
| }, | |
| { | |
| "check deducing bounds from const, 4", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| }, | |
| { | |
| "check deducing bounds from const, 5", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 1), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R0 tried to subtract pointer from scalar", | |
| }, | |
| { | |
| "check deducing bounds from const, 6", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R0 tried to subtract pointer from scalar", | |
| }, | |
| { | |
| "check deducing bounds from const, 7", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, ~0), | |
| BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 0), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "dereference of modified ctx ptr", | |
| }, | |
| { | |
| "check deducing bounds from const, 8", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, ~0), | |
| BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 1), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "dereference of modified ctx ptr", | |
| }, | |
| { | |
| "check deducing bounds from const, 9", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 0), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R0 tried to subtract pointer from scalar", | |
| }, | |
| { | |
| "check deducing bounds from const, 10", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 0), | |
| BPF_JMP_IMM(BPF_JSLE, BPF_REG_0, 0, 0), | |
| /* Marks reg as unknown. */ | |
| BPF_ALU64_IMM(BPF_NEG, BPF_REG_0, 0), | |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "math between ctx pointer and register with unbounded min value is not allowed", | |
| }, | |
| { | |
| "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, | |
| }, | |
| { | |
| "xadd/w check unaligned stack", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
| BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -7), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "misaligned stack access off", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "xadd/w check unaligned map", | |
| .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_JNE, BPF_REG_0, 0, 1), | |
| BPF_EXIT_INSN(), | |
| BPF_MOV64_IMM(BPF_REG_1, 1), | |
| BPF_STX_XADD(BPF_W, BPF_REG_0, BPF_REG_1, 3), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .fixup_map1 = { 3 }, | |
| .result = REJECT, | |
| .errstr = "misaligned value access off", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "xadd/w check unaligned pkt", | |
| .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, 2), | |
| BPF_MOV64_IMM(BPF_REG_0, 99), | |
| BPF_JMP_IMM(BPF_JA, 0, 0, 6), | |
| BPF_MOV64_IMM(BPF_REG_0, 1), | |
| BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0), | |
| BPF_ST_MEM(BPF_W, BPF_REG_2, 3, 0), | |
| BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 1), | |
| BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 2), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 1), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "BPF_XADD stores into R2 packet", | |
| .prog_type = BPF_PROG_TYPE_XDP, | |
| }, | |
| }; | |
| static int probe_filter_length(const struct bpf_insn *fp) | |
| { | |
| int len; | |
| for (len = MAX_INSNS - 1; len > 0; --len) | |
| if (fp[len].code != 0 || fp[len].imm != 0) | |
| break; | |
| return len + 1; | |
| } | |
| static int create_map(uint32_t size_value, uint32_t max_elem) | |
| { | |
| int fd; | |
| fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(long long), | |
| size_value, max_elem, BPF_F_NO_PREALLOC); | |
| if (fd < 0) | |
| printf("Failed to create hash map '%s'!\n", strerror(errno)); | |
| return fd; | |
| } | |
| static int create_prog_array(void) | |
| { | |
| int fd; | |
| fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int), | |
| sizeof(int), 4, 0); | |
| if (fd < 0) | |
| printf("Failed to create prog array '%s'!\n", strerror(errno)); | |
| return fd; | |
| } | |
| static int create_map_in_map(void) | |
| { | |
| int inner_map_fd, outer_map_fd; | |
| inner_map_fd = bpf_create_map(BPF_MAP_TYPE_ARRAY, sizeof(int), | |
| sizeof(int), 1, 0); | |
| if (inner_map_fd < 0) { | |
| printf("Failed to create array '%s'!\n", strerror(errno)); | |
| return inner_map_fd; | |
| } | |
| outer_map_fd = bpf_create_map_in_map(BPF_MAP_TYPE_ARRAY_OF_MAPS, | |
| sizeof(int), inner_map_fd, 1, 0); | |
| if (outer_map_fd < 0) | |
| printf("Failed to create array of maps '%s'!\n", | |
| strerror(errno)); | |
| close(inner_map_fd); | |
| return outer_map_fd; | |
| } | |
| static char bpf_vlog[32768]; | |
| static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog, | |
| int *map_fds) | |
| { | |
| int *fixup_map1 = test->fixup_map1; | |
| int *fixup_map2 = test->fixup_map2; | |
| int *fixup_prog = test->fixup_prog; | |
| int *fixup_map_in_map = test->fixup_map_in_map; | |
| /* Allocating HTs with 1 elem is fine here, since we only test | |
| * for verifier and not do a runtime lookup, so the only thing | |
| * that really matters is value size in this case. | |
| */ | |
| if (*fixup_map1) { | |
| map_fds[0] = create_map(sizeof(long long), 1); | |
| do { | |
| prog[*fixup_map1].imm = map_fds[0]; | |
| fixup_map1++; | |
| } while (*fixup_map1); | |
| } | |
| if (*fixup_map2) { | |
| map_fds[1] = create_map(sizeof(struct test_val), 1); | |
| do { | |
| prog[*fixup_map2].imm = map_fds[1]; | |
| fixup_map2++; | |
| } while (*fixup_map2); | |
| } | |
| if (*fixup_prog) { | |
| map_fds[2] = create_prog_array(); | |
| do { | |
| prog[*fixup_prog].imm = map_fds[2]; | |
| fixup_prog++; | |
| } while (*fixup_prog); | |
| } | |
| if (*fixup_map_in_map) { | |
| map_fds[3] = create_map_in_map(); | |
| do { | |
| prog[*fixup_map_in_map].imm = map_fds[3]; | |
| fixup_map_in_map++; | |
| } while (*fixup_map_in_map); | |
| } | |
| } | |
| static void do_test_single(struct bpf_test *test, bool unpriv, | |
| int *passes, int *errors) | |
| { | |
| int fd_prog, expected_ret, reject_from_alignment; | |
| struct bpf_insn *prog = test->insns; | |
| int prog_len = probe_filter_length(prog); | |
| int prog_type = test->prog_type; | |
| int map_fds[MAX_NR_MAPS]; | |
| const char *expected_err; | |
| int i; | |
| for (i = 0; i < MAX_NR_MAPS; i++) | |
| map_fds[i] = -1; | |
| do_test_fixup(test, prog, map_fds); | |
| fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, | |
| prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT, | |
| "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1); | |
| expected_ret = unpriv && test->result_unpriv != UNDEF ? | |
| test->result_unpriv : test->result; | |
| expected_err = unpriv && test->errstr_unpriv ? | |
| test->errstr_unpriv : test->errstr; | |
| reject_from_alignment = fd_prog < 0 && | |
| (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS) && | |
| strstr(bpf_vlog, "misaligned"); | |
| #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS | |
| if (reject_from_alignment) { | |
| printf("FAIL\nFailed due to alignment despite having efficient unaligned access: '%s'!\n", | |
| strerror(errno)); | |
| goto fail_log; | |
| } | |
| #endif | |
| if (expected_ret == ACCEPT) { | |
| if (fd_prog < 0 && !reject_from_alignment) { | |
| printf("FAIL\nFailed to load prog '%s'!\n", | |
| strerror(errno)); | |
| goto fail_log; | |
| } | |
| } else { | |
| if (fd_prog >= 0) { | |
| printf("FAIL\nUnexpected success to load!\n"); | |
| goto fail_log; | |
| } | |
| if (!strstr(bpf_vlog, expected_err) && !reject_from_alignment) { | |
| printf("FAIL\nUnexpected error message!\n"); | |
| goto fail_log; | |
| } | |
| } | |
| (*passes)++; | |
| printf("OK%s\n", reject_from_alignment ? | |
| " (NOTE: reject due to unknown alignment)" : ""); | |
| close_fds: | |
| close(fd_prog); | |
| for (i = 0; i < MAX_NR_MAPS; i++) | |
| close(map_fds[i]); | |
| sched_yield(); | |
| return; | |
| fail_log: | |
| (*errors)++; | |
| printf("%s", bpf_vlog); | |
| goto close_fds; | |
| } | |
| static bool is_admin(void) | |
| { | |
| cap_t caps; | |
| cap_flag_value_t sysadmin = CAP_CLEAR; | |
| const cap_value_t cap_val = CAP_SYS_ADMIN; | |
| #ifdef CAP_IS_SUPPORTED | |
| if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) { | |
| perror("cap_get_flag"); | |
| return false; | |
| } | |
| #endif | |
| caps = cap_get_proc(); | |
| if (!caps) { | |
| perror("cap_get_proc"); | |
| return false; | |
| } | |
| if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin)) | |
| perror("cap_get_flag"); | |
| if (cap_free(caps)) | |
| perror("cap_free"); | |
| return (sysadmin == CAP_SET); | |
| } | |
| static int set_admin(bool admin) | |
| { | |
| cap_t caps; | |
| const cap_value_t cap_val = CAP_SYS_ADMIN; | |
| int ret = -1; | |
| caps = cap_get_proc(); | |
| if (!caps) { | |
| perror("cap_get_proc"); | |
| return -1; | |
| } | |
| if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val, | |
| admin ? CAP_SET : CAP_CLEAR)) { | |
| perror("cap_set_flag"); | |
| goto out; | |
| } | |
| if (cap_set_proc(caps)) { | |
| perror("cap_set_proc"); | |
| goto out; | |
| } | |
| ret = 0; | |
| out: | |
| if (cap_free(caps)) | |
| perror("cap_free"); | |
| return ret; | |
| } | |
| static int do_test(bool unpriv, unsigned int from, unsigned int to) | |
| { | |
| int i, passes = 0, errors = 0; | |
| for (i = from; i < to; i++) { | |
| struct bpf_test *test = &tests[i]; | |
| /* Program types that are not supported by non-root we | |
| * skip right away. | |
| */ | |
| if (!test->prog_type) { | |
| if (!unpriv) | |
| set_admin(false); | |
| printf("#%d/u %s ", i, test->descr); | |
| do_test_single(test, true, &passes, &errors); | |
| if (!unpriv) | |
| set_admin(true); | |
| } | |
| if (!unpriv) { | |
| printf("#%d/p %s ", i, test->descr); | |
| do_test_single(test, false, &passes, &errors); | |
| } | |
| } | |
| printf("Summary: %d PASSED, %d FAILED\n", passes, errors); | |
| return errors ? EXIT_FAILURE : EXIT_SUCCESS; | |
| } | |
| int main(int argc, char **argv) | |
| { | |
| struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; | |
| struct rlimit rlim = { 1 << 20, 1 << 20 }; | |
| unsigned int from = 0, to = ARRAY_SIZE(tests); | |
| bool unpriv = !is_admin(); | |
| if (argc == 3) { | |
| unsigned int l = atoi(argv[argc - 2]); | |
| unsigned int u = atoi(argv[argc - 1]); | |
| if (l < to && u < to) { | |
| from = l; | |
| to = u + 1; | |
| } | |
| } else if (argc == 2) { | |
| unsigned int t = atoi(argv[argc - 1]); | |
| if (t < to) { | |
| from = t; | |
| to = t + 1; | |
| } | |
| } | |
| setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf); | |
| return do_test(unpriv, from, to); | |
| } |