| /* |
| * 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, |
| }, |
| { |
| "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, |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
| }, |
| { |
| "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", |
| }, |
| { |
| "check skb->mark 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, mark)), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SK_SKB, |
| }, |
| { |
| "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", |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
| }, |
| { |
| "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", |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
| }, |
| { |
| "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", |
| }, |
| { |
| "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, |
| }, |
| { |
| "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, |
| }, |
| { |
| "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, |
| }, |
| { |
| "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 = ACCEPT, |
| }, |
| { |
| "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 = ACCEPT, |
| }, |
| { |
| "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_REG(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_REG(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_REG(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 = "R0 min value is negative", |
| .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 = "R0 min value is negative", |
| .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 = "R8 invalid mem access 'inv'", |
| .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 = "R8 invalid mem access 'inv'", |
| .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 = "R0 min value is negative", |
| .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 = "R0 min value is negative", |
| .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 = "R0 min value is negative", |
| .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 = "R0 min value is negative", |
| .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 = "R0 min value is negative", |
| .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 = "R0 min value is negative", |
| .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 min value is negative", |
| .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_unpriv = "R0 pointer comparison prohibited", |
| .errstr = "R0 min value is negative", |
| .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, |
| }, |
| { |
| "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, |
| }, |
| { |
| "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, |
| }, |
| }; |
| |
| 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, "Unknown alignment."); |
| #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); |
| } |