/* * Testsuite for BPF interpreter and BPF JIT compiler * * Copyright (c) 2011-2014 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. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include #include /* General test specific settings */ #define MAX_SUBTESTS 3 #define MAX_TESTRUNS 10000 #define MAX_DATA 128 #define MAX_INSNS 512 #define MAX_K 0xffffFFFF /* Few constants used to init test 'skb' */ #define SKB_TYPE 3 #define SKB_MARK 0x1234aaaa #define SKB_HASH 0x1234aaab #define SKB_QUEUE_MAP 123 #define SKB_VLAN_TCI 0xffff #define SKB_DEV_IFINDEX 577 #define SKB_DEV_TYPE 588 /* Redefine REGs to make tests less verbose */ #define R0 BPF_REG_0 #define R1 BPF_REG_1 #define R2 BPF_REG_2 #define R3 BPF_REG_3 #define R4 BPF_REG_4 #define R5 BPF_REG_5 #define R6 BPF_REG_6 #define R7 BPF_REG_7 #define R8 BPF_REG_8 #define R9 BPF_REG_9 #define R10 BPF_REG_10 /* Flags that can be passed to test cases */ #define FLAG_NO_DATA BIT(0) #define FLAG_EXPECTED_FAIL BIT(1) enum { CLASSIC = BIT(6), /* Old BPF instructions only. */ INTERNAL = BIT(7), /* Extended instruction set. */ }; #define TEST_TYPE_MASK (CLASSIC | INTERNAL) struct bpf_test { const char *descr; union { struct sock_filter insns[MAX_INSNS]; struct bpf_insn insns_int[MAX_INSNS]; } u; __u8 aux; __u8 data[MAX_DATA]; struct { int data_size; __u32 result; } test[MAX_SUBTESTS]; }; static struct bpf_test tests[] = { { "TAX", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_ALU | BPF_NEG, 0), /* A == -3 */ BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_LEN, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_MISC | BPF_TAX, 0), /* X == len - 3 */ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { 10, 20, 30, 40, 50 }, { { 2, 10 }, { 3, 20 }, { 4, 30 } }, }, { "TXA", .u.insns = { BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_RET | BPF_A, 0) /* A == len * 2 */ }, CLASSIC, { 10, 20, 30, 40, 50 }, { { 1, 2 }, { 3, 6 }, { 4, 8 } }, }, { "ADD_SUB_MUL_K", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, 1), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 2), BPF_STMT(BPF_LDX | BPF_IMM, 3), BPF_STMT(BPF_ALU | BPF_SUB | BPF_X, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 0xffffffff), BPF_STMT(BPF_ALU | BPF_MUL | BPF_K, 3), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC | FLAG_NO_DATA, { }, { { 0, 0xfffffffd } } }, { "DIV_MOD_KX", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, 8), BPF_STMT(BPF_ALU | BPF_DIV | BPF_K, 2), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_IMM, 0xffffffff), BPF_STMT(BPF_ALU | BPF_DIV | BPF_X, 0), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_IMM, 0xffffffff), BPF_STMT(BPF_ALU | BPF_DIV | BPF_K, 0x70000000), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_IMM, 0xffffffff), BPF_STMT(BPF_ALU | BPF_MOD | BPF_X, 0), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_IMM, 0xffffffff), BPF_STMT(BPF_ALU | BPF_MOD | BPF_K, 0x70000000), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC | FLAG_NO_DATA, { }, { { 0, 0x20000000 } } }, { "AND_OR_LSH_K", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, 0xff), BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xf0), BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 27), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_IMM, 0xf), BPF_STMT(BPF_ALU | BPF_OR | BPF_K, 0xf0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC | FLAG_NO_DATA, { }, { { 0, 0x800000ff }, { 1, 0x800000ff } }, }, { "LD_IMM_0", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, 0), /* ld #0 */ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, 1, 0), BPF_STMT(BPF_RET | BPF_K, 0), BPF_STMT(BPF_RET | BPF_K, 1), }, CLASSIC, { }, { { 1, 1 } }, }, { "LD_IND", .u.insns = { BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_LD | BPF_H | BPF_IND, MAX_K), BPF_STMT(BPF_RET | BPF_K, 1) }, CLASSIC, { }, { { 1, 0 }, { 10, 0 }, { 60, 0 } }, }, { "LD_ABS", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, 1000), BPF_STMT(BPF_RET | BPF_K, 1) }, CLASSIC, { }, { { 1, 0 }, { 10, 0 }, { 60, 0 } }, }, { "LD_ABS_LL", .u.insns = { BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_LL_OFF), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_LL_OFF + 1), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { 1, 2, 3 }, { { 1, 0 }, { 2, 3 } }, }, { "LD_IND_LL", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, SKF_LL_OFF - 1), BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { 1, 2, 3, 0xff }, { { 1, 1 }, { 3, 3 }, { 4, 0xff } }, }, { "LD_ABS_NET", .u.insns = { BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_NET_OFF), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_B | BPF_ABS, SKF_NET_OFF + 1), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3 }, { { 15, 0 }, { 16, 3 } }, }, { "LD_IND_NET", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, SKF_NET_OFF - 15), BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3 }, { { 14, 0 }, { 15, 1 }, { 17, 3 } }, }, { "LD_PKTTYPE", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PKTTYPE), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, SKB_TYPE, 1, 0), BPF_STMT(BPF_RET | BPF_K, 1), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PKTTYPE), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, SKB_TYPE, 1, 0), BPF_STMT(BPF_RET | BPF_K, 1), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PKTTYPE), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, SKB_TYPE, 1, 0), BPF_STMT(BPF_RET | BPF_K, 1), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, 3 }, { 10, 3 } }, }, { "LD_MARK", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_MARK), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, SKB_MARK}, { 10, SKB_MARK} }, }, { "LD_RXHASH", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_RXHASH), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, SKB_HASH}, { 10, SKB_HASH} }, }, { "LD_QUEUE", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_QUEUE), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, SKB_QUEUE_MAP }, { 10, SKB_QUEUE_MAP } }, }, { "LD_PROTOCOL", .u.insns = { BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 1), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 20, 1, 0), BPF_STMT(BPF_RET | BPF_K, 0), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PROTOCOL), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 30, 1, 0), BPF_STMT(BPF_RET | BPF_K, 0), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { 10, 20, 30 }, { { 10, ETH_P_IP }, { 100, ETH_P_IP } }, }, { "LD_VLAN_TAG", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_VLAN_TAG), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, SKB_VLAN_TCI & ~VLAN_TAG_PRESENT }, { 10, SKB_VLAN_TCI & ~VLAN_TAG_PRESENT } }, }, { "LD_VLAN_TAG_PRESENT", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_VLAN_TAG_PRESENT), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, !!(SKB_VLAN_TCI & VLAN_TAG_PRESENT) }, { 10, !!(SKB_VLAN_TCI & VLAN_TAG_PRESENT) } }, }, { "LD_IFINDEX", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_IFINDEX), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, SKB_DEV_IFINDEX }, { 10, SKB_DEV_IFINDEX } }, }, { "LD_HATYPE", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_HATYPE), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, SKB_DEV_TYPE }, { 10, SKB_DEV_TYPE } }, }, { "LD_CPU", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_CPU), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_CPU), BPF_STMT(BPF_ALU | BPF_SUB | BPF_X, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, 0 }, { 10, 0 } }, }, { "LD_NLATTR", .u.insns = { BPF_STMT(BPF_LDX | BPF_IMM, 2), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_LDX | BPF_IMM, 3), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, #ifdef __BIG_ENDIAN { 0xff, 0xff, 0, 4, 0, 2, 0, 4, 0, 3 }, #else { 0xff, 0xff, 4, 0, 2, 0, 4, 0, 3, 0 }, #endif { { 4, 0 }, { 20, 6 } }, }, { "LD_NLATTR_NEST", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_LDX | BPF_IMM, 3), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR_NEST), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR_NEST), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR_NEST), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR_NEST), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR_NEST), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR_NEST), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR_NEST), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_NLATTR_NEST), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, #ifdef __BIG_ENDIAN { 0xff, 0xff, 0, 12, 0, 1, 0, 4, 0, 2, 0, 4, 0, 3 }, #else { 0xff, 0xff, 12, 0, 1, 0, 4, 0, 2, 0, 4, 0, 3, 0 }, #endif { { 4, 0 }, { 20, 10 } }, }, { "LD_PAYLOAD_OFF", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PAY_OFFSET), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PAY_OFFSET), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PAY_OFFSET), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PAY_OFFSET), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_PAY_OFFSET), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, /* 00:00:00:00:00:00 > 00:00:00:00:00:00, ethtype IPv4 (0x0800), * length 98: 127.0.0.1 > 127.0.0.1: ICMP echo request, * id 9737, seq 1, length 64 */ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x45, 0x00, 0x00, 0x54, 0xac, 0x8b, 0x40, 0x00, 0x40, 0x01, 0x90, 0x1b, 0x7f, 0x00, 0x00, 0x01 }, { { 30, 0 }, { 100, 42 } }, }, { "LD_ANC_XOR", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, 10), BPF_STMT(BPF_LDX | BPF_IMM, 300), BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_ALU_XOR_X), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 4, 10 ^ 300 }, { 20, 10 ^ 300 } }, }, { "SPILL_FILL", .u.insns = { BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_LD | BPF_IMM, 2), BPF_STMT(BPF_ALU | BPF_RSH, 1), BPF_STMT(BPF_ALU | BPF_XOR | BPF_X, 0), BPF_STMT(BPF_ST, 1), /* M1 = 1 ^ len */ BPF_STMT(BPF_ALU | BPF_XOR | BPF_K, 0x80000000), BPF_STMT(BPF_ST, 2), /* M2 = 1 ^ len ^ 0x80000000 */ BPF_STMT(BPF_STX, 15), /* M3 = len */ BPF_STMT(BPF_LDX | BPF_MEM, 1), BPF_STMT(BPF_LD | BPF_MEM, 2), BPF_STMT(BPF_ALU | BPF_XOR | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 15), BPF_STMT(BPF_ALU | BPF_XOR | BPF_X, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { { 1, 0x80000001 }, { 2, 0x80000002 }, { 60, 0x80000000 ^ 60 } } }, { "JEQ", .u.insns = { BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, 0, 1), BPF_STMT(BPF_RET | BPF_K, 1), BPF_STMT(BPF_RET | BPF_K, MAX_K) }, CLASSIC, { 3, 3, 3, 3, 3 }, { { 1, 0 }, { 3, 1 }, { 4, MAX_K } }, }, { "JGT", .u.insns = { BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), BPF_JUMP(BPF_JMP | BPF_JGT | BPF_X, 0, 0, 1), BPF_STMT(BPF_RET | BPF_K, 1), BPF_STMT(BPF_RET | BPF_K, MAX_K) }, CLASSIC, { 4, 4, 4, 3, 3 }, { { 2, 0 }, { 3, 1 }, { 4, MAX_K } }, }, { "JGE", .u.insns = { BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_LD | BPF_B | BPF_IND, MAX_K), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 1, 1, 0), BPF_STMT(BPF_RET | BPF_K, 10), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 2, 1, 0), BPF_STMT(BPF_RET | BPF_K, 20), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 3, 1, 0), BPF_STMT(BPF_RET | BPF_K, 30), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 4, 1, 0), BPF_STMT(BPF_RET | BPF_K, 40), BPF_STMT(BPF_RET | BPF_K, MAX_K) }, CLASSIC, { 1, 2, 3, 4, 5 }, { { 1, 20 }, { 3, 40 }, { 5, MAX_K } }, }, { "JSET", .u.insns = { BPF_JUMP(BPF_JMP | BPF_JA, 0, 0, 0), BPF_JUMP(BPF_JMP | BPF_JA, 1, 1, 1), BPF_JUMP(BPF_JMP | BPF_JA, 0, 0, 0), BPF_JUMP(BPF_JMP | BPF_JA, 0, 0, 0), BPF_STMT(BPF_LDX | BPF_LEN, 0), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_SUB | BPF_K, 4), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 1, 0, 1), BPF_STMT(BPF_RET | BPF_K, 10), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 0x80000000, 0, 1), BPF_STMT(BPF_RET | BPF_K, 20), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 0xffffff, 1, 0), BPF_STMT(BPF_RET | BPF_K, 30), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 0xffffff, 1, 0), BPF_STMT(BPF_RET | BPF_K, 30), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 0xffffff, 1, 0), BPF_STMT(BPF_RET | BPF_K, 30), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 0xffffff, 1, 0), BPF_STMT(BPF_RET | BPF_K, 30), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 0xffffff, 1, 0), BPF_STMT(BPF_RET | BPF_K, 30), BPF_STMT(BPF_RET | BPF_K, MAX_K) }, CLASSIC, { 0, 0xAA, 0x55, 1 }, { { 4, 10 }, { 5, 20 }, { 6, MAX_K } }, }, { "tcpdump port 22", .u.insns = { BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 12), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x86dd, 0, 8), /* IPv6 */ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 20), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x84, 2, 0), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x6, 1, 0), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x11, 0, 17), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 54), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 22, 14, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 56), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 22, 12, 13), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0800, 0, 12), /* IPv4 */ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 23), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x84, 2, 0), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x6, 1, 0), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x11, 0, 8), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 20), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 0x1fff, 6, 0), BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, 14), BPF_STMT(BPF_LD | BPF_H | BPF_IND, 14), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 22, 2, 0), BPF_STMT(BPF_LD | BPF_H | BPF_IND, 16), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 22, 0, 1), BPF_STMT(BPF_RET | BPF_K, 0xffff), BPF_STMT(BPF_RET | BPF_K, 0), }, CLASSIC, /* 3c:07:54:43:e5:76 > 10:bf:48:d6:43:d6, ethertype IPv4(0x0800) * length 114: 10.1.1.149.49700 > 10.1.2.10.22: Flags [P.], * seq 1305692979:1305693027, ack 3650467037, win 65535, * options [nop,nop,TS val 2502645400 ecr 3971138], length 48 */ { 0x10, 0xbf, 0x48, 0xd6, 0x43, 0xd6, 0x3c, 0x07, 0x54, 0x43, 0xe5, 0x76, 0x08, 0x00, 0x45, 0x10, 0x00, 0x64, 0x75, 0xb5, 0x40, 0x00, 0x40, 0x06, 0xad, 0x2e, /* IP header */ 0x0a, 0x01, 0x01, 0x95, /* ip src */ 0x0a, 0x01, 0x02, 0x0a, /* ip dst */ 0xc2, 0x24, 0x00, 0x16 /* dst port */ }, { { 10, 0 }, { 30, 0 }, { 100, 65535 } }, }, { "tcpdump complex", .u.insns = { /* tcpdump -nei eth0 'tcp port 22 and (((ip[2:2] - * ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0) and * (len > 115 or len < 30000000000)' -d */ BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 12), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x86dd, 30, 0), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x800, 0, 29), BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 23), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x6, 0, 27), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 20), BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, 0x1fff, 25, 0), BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, 14), BPF_STMT(BPF_LD | BPF_H | BPF_IND, 14), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 22, 2, 0), BPF_STMT(BPF_LD | BPF_H | BPF_IND, 16), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 22, 0, 20), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 16), BPF_STMT(BPF_ST, 1), BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 14), BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xf), BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 2), BPF_STMT(BPF_MISC | BPF_TAX, 0x5), /* libpcap emits K on TAX */ BPF_STMT(BPF_LD | BPF_MEM, 1), BPF_STMT(BPF_ALU | BPF_SUB | BPF_X, 0), BPF_STMT(BPF_ST, 5), BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, 14), BPF_STMT(BPF_LD | BPF_B | BPF_IND, 26), BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xf0), BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 2), BPF_STMT(BPF_MISC | BPF_TAX, 0x9), /* libpcap emits K on TAX */ BPF_STMT(BPF_LD | BPF_MEM, 5), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, 4, 0), BPF_STMT(BPF_LD | BPF_LEN, 0), BPF_JUMP(BPF_JMP | BPF_JGT | BPF_K, 0x73, 1, 0), BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, 0xfc23ac00, 1, 0), BPF_STMT(BPF_RET | BPF_K, 0xffff), BPF_STMT(BPF_RET | BPF_K, 0), }, CLASSIC, { 0x10, 0xbf, 0x48, 0xd6, 0x43, 0xd6, 0x3c, 0x07, 0x54, 0x43, 0xe5, 0x76, 0x08, 0x00, 0x45, 0x10, 0x00, 0x64, 0x75, 0xb5, 0x40, 0x00, 0x40, 0x06, 0xad, 0x2e, /* IP header */ 0x0a, 0x01, 0x01, 0x95, /* ip src */ 0x0a, 0x01, 0x02, 0x0a, /* ip dst */ 0xc2, 0x24, 0x00, 0x16 /* dst port */ }, { { 10, 0 }, { 30, 0 }, { 100, 65535 } }, }, { "RET_A", .u.insns = { /* check that unitialized X and A contain zeros */ BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_RET | BPF_A, 0) }, CLASSIC, { }, { {1, 0}, {2, 0} }, }, { "INT: ADD trivial", .u.insns_int = { BPF_ALU64_IMM(BPF_MOV, R1, 1), BPF_ALU64_IMM(BPF_ADD, R1, 2), BPF_ALU64_IMM(BPF_MOV, R2, 3), BPF_ALU64_REG(BPF_SUB, R1, R2), BPF_ALU64_IMM(BPF_ADD, R1, -1), BPF_ALU64_IMM(BPF_MUL, R1, 3), BPF_ALU64_REG(BPF_MOV, R0, R1), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 0xfffffffd } } }, { "INT: MUL_X", .u.insns_int = { BPF_ALU64_IMM(BPF_MOV, R0, -1), BPF_ALU64_IMM(BPF_MOV, R1, -1), BPF_ALU64_IMM(BPF_MOV, R2, 3), BPF_ALU64_REG(BPF_MUL, R1, R2), BPF_JMP_IMM(BPF_JEQ, R1, 0xfffffffd, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_MOV, R0, 1), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 1 } } }, { "INT: MUL_X2", .u.insns_int = { BPF_ALU32_IMM(BPF_MOV, R0, -1), BPF_ALU32_IMM(BPF_MOV, R1, -1), BPF_ALU32_IMM(BPF_MOV, R2, 3), BPF_ALU64_REG(BPF_MUL, R1, R2), BPF_ALU64_IMM(BPF_RSH, R1, 8), BPF_JMP_IMM(BPF_JEQ, R1, 0x2ffffff, 1), BPF_EXIT_INSN(), BPF_ALU32_IMM(BPF_MOV, R0, 1), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 1 } } }, { "INT: MUL32_X", .u.insns_int = { BPF_ALU32_IMM(BPF_MOV, R0, -1), BPF_ALU64_IMM(BPF_MOV, R1, -1), BPF_ALU32_IMM(BPF_MOV, R2, 3), BPF_ALU32_REG(BPF_MUL, R1, R2), BPF_ALU64_IMM(BPF_RSH, R1, 8), BPF_JMP_IMM(BPF_JEQ, R1, 0xffffff, 1), BPF_EXIT_INSN(), BPF_ALU32_IMM(BPF_MOV, R0, 1), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 1 } } }, { /* Have to test all register combinations, since * JITing of different registers will produce * different asm code. */ "INT: ADD 64-bit", .u.insns_int = { BPF_ALU64_IMM(BPF_MOV, R0, 0), BPF_ALU64_IMM(BPF_MOV, R1, 1), BPF_ALU64_IMM(BPF_MOV, R2, 2), BPF_ALU64_IMM(BPF_MOV, R3, 3), BPF_ALU64_IMM(BPF_MOV, R4, 4), BPF_ALU64_IMM(BPF_MOV, R5, 5), BPF_ALU64_IMM(BPF_MOV, R6, 6), BPF_ALU64_IMM(BPF_MOV, R7, 7), BPF_ALU64_IMM(BPF_MOV, R8, 8), BPF_ALU64_IMM(BPF_MOV, R9, 9), BPF_ALU64_IMM(BPF_ADD, R0, 20), BPF_ALU64_IMM(BPF_ADD, R1, 20), BPF_ALU64_IMM(BPF_ADD, R2, 20), BPF_ALU64_IMM(BPF_ADD, R3, 20), BPF_ALU64_IMM(BPF_ADD, R4, 20), BPF_ALU64_IMM(BPF_ADD, R5, 20), BPF_ALU64_IMM(BPF_ADD, R6, 20), BPF_ALU64_IMM(BPF_ADD, R7, 20), BPF_ALU64_IMM(BPF_ADD, R8, 20), BPF_ALU64_IMM(BPF_ADD, R9, 20), BPF_ALU64_IMM(BPF_SUB, R0, 10), BPF_ALU64_IMM(BPF_SUB, R1, 10), BPF_ALU64_IMM(BPF_SUB, R2, 10), BPF_ALU64_IMM(BPF_SUB, R3, 10), BPF_ALU64_IMM(BPF_SUB, R4, 10), BPF_ALU64_IMM(BPF_SUB, R5, 10), BPF_ALU64_IMM(BPF_SUB, R6, 10), BPF_ALU64_IMM(BPF_SUB, R7, 10), BPF_ALU64_IMM(BPF_SUB, R8, 10), BPF_ALU64_IMM(BPF_SUB, R9, 10), BPF_ALU64_REG(BPF_ADD, R0, R0), BPF_ALU64_REG(BPF_ADD, R0, R1), BPF_ALU64_REG(BPF_ADD, R0, R2), BPF_ALU64_REG(BPF_ADD, R0, R3), BPF_ALU64_REG(BPF_ADD, R0, R4), BPF_ALU64_REG(BPF_ADD, R0, R5), BPF_ALU64_REG(BPF_ADD, R0, R6), BPF_ALU64_REG(BPF_ADD, R0, R7), BPF_ALU64_REG(BPF_ADD, R0, R8), BPF_ALU64_REG(BPF_ADD, R0, R9), /* R0 == 155 */ BPF_JMP_IMM(BPF_JEQ, R0, 155, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R1, R0), BPF_ALU64_REG(BPF_ADD, R1, R1), BPF_ALU64_REG(BPF_ADD, R1, R2), BPF_ALU64_REG(BPF_ADD, R1, R3), BPF_ALU64_REG(BPF_ADD, R1, R4), BPF_ALU64_REG(BPF_ADD, R1, R5), BPF_ALU64_REG(BPF_ADD, R1, R6), BPF_ALU64_REG(BPF_ADD, R1, R7), BPF_ALU64_REG(BPF_ADD, R1, R8), BPF_ALU64_REG(BPF_ADD, R1, R9), /* R1 == 456 */ BPF_JMP_IMM(BPF_JEQ, R1, 456, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R2, R0), BPF_ALU64_REG(BPF_ADD, R2, R1), BPF_ALU64_REG(BPF_ADD, R2, R2), BPF_ALU64_REG(BPF_ADD, R2, R3), BPF_ALU64_REG(BPF_ADD, R2, R4), BPF_ALU64_REG(BPF_ADD, R2, R5), BPF_ALU64_REG(BPF_ADD, R2, R6), BPF_ALU64_REG(BPF_ADD, R2, R7), BPF_ALU64_REG(BPF_ADD, R2, R8), BPF_ALU64_REG(BPF_ADD, R2, R9), /* R2 == 1358 */ BPF_JMP_IMM(BPF_JEQ, R2, 1358, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R3, R0), BPF_ALU64_REG(BPF_ADD, R3, R1), BPF_ALU64_REG(BPF_ADD, R3, R2), BPF_ALU64_REG(BPF_ADD, R3, R3), BPF_ALU64_REG(BPF_ADD, R3, R4), BPF_ALU64_REG(BPF_ADD, R3, R5), BPF_ALU64_REG(BPF_ADD, R3, R6), BPF_ALU64_REG(BPF_ADD, R3, R7), BPF_ALU64_REG(BPF_ADD, R3, R8), BPF_ALU64_REG(BPF_ADD, R3, R9), /* R3 == 4063 */ BPF_JMP_IMM(BPF_JEQ, R3, 4063, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R4, R0), BPF_ALU64_REG(BPF_ADD, R4, R1), BPF_ALU64_REG(BPF_ADD, R4, R2), BPF_ALU64_REG(BPF_ADD, R4, R3), BPF_ALU64_REG(BPF_ADD, R4, R4), BPF_ALU64_REG(BPF_ADD, R4, R5), BPF_ALU64_REG(BPF_ADD, R4, R6), BPF_ALU64_REG(BPF_ADD, R4, R7), BPF_ALU64_REG(BPF_ADD, R4, R8), BPF_ALU64_REG(BPF_ADD, R4, R9), /* R4 == 12177 */ BPF_JMP_IMM(BPF_JEQ, R4, 12177, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R5, R0), BPF_ALU64_REG(BPF_ADD, R5, R1), BPF_ALU64_REG(BPF_ADD, R5, R2), BPF_ALU64_REG(BPF_ADD, R5, R3), BPF_ALU64_REG(BPF_ADD, R5, R4), BPF_ALU64_REG(BPF_ADD, R5, R5), BPF_ALU64_REG(BPF_ADD, R5, R6), BPF_ALU64_REG(BPF_ADD, R5, R7), BPF_ALU64_REG(BPF_ADD, R5, R8), BPF_ALU64_REG(BPF_ADD, R5, R9), /* R5 == 36518 */ BPF_JMP_IMM(BPF_JEQ, R5, 36518, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R6, R0), BPF_ALU64_REG(BPF_ADD, R6, R1), BPF_ALU64_REG(BPF_ADD, R6, R2), BPF_ALU64_REG(BPF_ADD, R6, R3), BPF_ALU64_REG(BPF_ADD, R6, R4), BPF_ALU64_REG(BPF_ADD, R6, R5), BPF_ALU64_REG(BPF_ADD, R6, R6), BPF_ALU64_REG(BPF_ADD, R6, R7), BPF_ALU64_REG(BPF_ADD, R6, R8), BPF_ALU64_REG(BPF_ADD, R6, R9), /* R6 == 109540 */ BPF_JMP_IMM(BPF_JEQ, R6, 109540, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R7, R0), BPF_ALU64_REG(BPF_ADD, R7, R1), BPF_ALU64_REG(BPF_ADD, R7, R2), BPF_ALU64_REG(BPF_ADD, R7, R3), BPF_ALU64_REG(BPF_ADD, R7, R4), BPF_ALU64_REG(BPF_ADD, R7, R5), BPF_ALU64_REG(BPF_ADD, R7, R6), BPF_ALU64_REG(BPF_ADD, R7, R7), BPF_ALU64_REG(BPF_ADD, R7, R8), BPF_ALU64_REG(BPF_ADD, R7, R9), /* R7 == 328605 */ BPF_JMP_IMM(BPF_JEQ, R7, 328605, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R8, R0), BPF_ALU64_REG(BPF_ADD, R8, R1), BPF_ALU64_REG(BPF_ADD, R8, R2), BPF_ALU64_REG(BPF_ADD, R8, R3), BPF_ALU64_REG(BPF_ADD, R8, R4), BPF_ALU64_REG(BPF_ADD, R8, R5), BPF_ALU64_REG(BPF_ADD, R8, R6), BPF_ALU64_REG(BPF_ADD, R8, R7), BPF_ALU64_REG(BPF_ADD, R8, R8), BPF_ALU64_REG(BPF_ADD, R8, R9), /* R8 == 985799 */ BPF_JMP_IMM(BPF_JEQ, R8, 985799, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_ADD, R9, R0), BPF_ALU64_REG(BPF_ADD, R9, R1), BPF_ALU64_REG(BPF_ADD, R9, R2), BPF_ALU64_REG(BPF_ADD, R9, R3), BPF_ALU64_REG(BPF_ADD, R9, R4), BPF_ALU64_REG(BPF_ADD, R9, R5), BPF_ALU64_REG(BPF_ADD, R9, R6), BPF_ALU64_REG(BPF_ADD, R9, R7), BPF_ALU64_REG(BPF_ADD, R9, R8), BPF_ALU64_REG(BPF_ADD, R9, R9), /* R9 == 2957380 */ BPF_ALU64_REG(BPF_MOV, R0, R9), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 2957380 } } }, { "INT: ADD 32-bit", .u.insns_int = { BPF_ALU32_IMM(BPF_MOV, R0, 20), BPF_ALU32_IMM(BPF_MOV, R1, 1), BPF_ALU32_IMM(BPF_MOV, R2, 2), BPF_ALU32_IMM(BPF_MOV, R3, 3), BPF_ALU32_IMM(BPF_MOV, R4, 4), BPF_ALU32_IMM(BPF_MOV, R5, 5), BPF_ALU32_IMM(BPF_MOV, R6, 6), BPF_ALU32_IMM(BPF_MOV, R7, 7), BPF_ALU32_IMM(BPF_MOV, R8, 8), BPF_ALU32_IMM(BPF_MOV, R9, 9), BPF_ALU64_IMM(BPF_ADD, R1, 10), BPF_ALU64_IMM(BPF_ADD, R2, 10), BPF_ALU64_IMM(BPF_ADD, R3, 10), BPF_ALU64_IMM(BPF_ADD, R4, 10), BPF_ALU64_IMM(BPF_ADD, R5, 10), BPF_ALU64_IMM(BPF_ADD, R6, 10), BPF_ALU64_IMM(BPF_ADD, R7, 10), BPF_ALU64_IMM(BPF_ADD, R8, 10), BPF_ALU64_IMM(BPF_ADD, R9, 10), BPF_ALU32_REG(BPF_ADD, R0, R1), BPF_ALU32_REG(BPF_ADD, R0, R2), BPF_ALU32_REG(BPF_ADD, R0, R3), BPF_ALU32_REG(BPF_ADD, R0, R4), BPF_ALU32_REG(BPF_ADD, R0, R5), BPF_ALU32_REG(BPF_ADD, R0, R6), BPF_ALU32_REG(BPF_ADD, R0, R7), BPF_ALU32_REG(BPF_ADD, R0, R8), BPF_ALU32_REG(BPF_ADD, R0, R9), /* R0 == 155 */ BPF_JMP_IMM(BPF_JEQ, R0, 155, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R1, R0), BPF_ALU32_REG(BPF_ADD, R1, R1), BPF_ALU32_REG(BPF_ADD, R1, R2), BPF_ALU32_REG(BPF_ADD, R1, R3), BPF_ALU32_REG(BPF_ADD, R1, R4), BPF_ALU32_REG(BPF_ADD, R1, R5), BPF_ALU32_REG(BPF_ADD, R1, R6), BPF_ALU32_REG(BPF_ADD, R1, R7), BPF_ALU32_REG(BPF_ADD, R1, R8), BPF_ALU32_REG(BPF_ADD, R1, R9), /* R1 == 456 */ BPF_JMP_IMM(BPF_JEQ, R1, 456, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R2, R0), BPF_ALU32_REG(BPF_ADD, R2, R1), BPF_ALU32_REG(BPF_ADD, R2, R2), BPF_ALU32_REG(BPF_ADD, R2, R3), BPF_ALU32_REG(BPF_ADD, R2, R4), BPF_ALU32_REG(BPF_ADD, R2, R5), BPF_ALU32_REG(BPF_ADD, R2, R6), BPF_ALU32_REG(BPF_ADD, R2, R7), BPF_ALU32_REG(BPF_ADD, R2, R8), BPF_ALU32_REG(BPF_ADD, R2, R9), /* R2 == 1358 */ BPF_JMP_IMM(BPF_JEQ, R2, 1358, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R3, R0), BPF_ALU32_REG(BPF_ADD, R3, R1), BPF_ALU32_REG(BPF_ADD, R3, R2), BPF_ALU32_REG(BPF_ADD, R3, R3), BPF_ALU32_REG(BPF_ADD, R3, R4), BPF_ALU32_REG(BPF_ADD, R3, R5), BPF_ALU32_REG(BPF_ADD, R3, R6), BPF_ALU32_REG(BPF_ADD, R3, R7), BPF_ALU32_REG(BPF_ADD, R3, R8), BPF_ALU32_REG(BPF_ADD, R3, R9), /* R3 == 4063 */ BPF_JMP_IMM(BPF_JEQ, R3, 4063, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R4, R0), BPF_ALU32_REG(BPF_ADD, R4, R1), BPF_ALU32_REG(BPF_ADD, R4, R2), BPF_ALU32_REG(BPF_ADD, R4, R3), BPF_ALU32_REG(BPF_ADD, R4, R4), BPF_ALU32_REG(BPF_ADD, R4, R5), BPF_ALU32_REG(BPF_ADD, R4, R6), BPF_ALU32_REG(BPF_ADD, R4, R7), BPF_ALU32_REG(BPF_ADD, R4, R8), BPF_ALU32_REG(BPF_ADD, R4, R9), /* R4 == 12177 */ BPF_JMP_IMM(BPF_JEQ, R4, 12177, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R5, R0), BPF_ALU32_REG(BPF_ADD, R5, R1), BPF_ALU32_REG(BPF_ADD, R5, R2), BPF_ALU32_REG(BPF_ADD, R5, R3), BPF_ALU32_REG(BPF_ADD, R5, R4), BPF_ALU32_REG(BPF_ADD, R5, R5), BPF_ALU32_REG(BPF_ADD, R5, R6), BPF_ALU32_REG(BPF_ADD, R5, R7), BPF_ALU32_REG(BPF_ADD, R5, R8), BPF_ALU32_REG(BPF_ADD, R5, R9), /* R5 == 36518 */ BPF_JMP_IMM(BPF_JEQ, R5, 36518, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R6, R0), BPF_ALU32_REG(BPF_ADD, R6, R1), BPF_ALU32_REG(BPF_ADD, R6, R2), BPF_ALU32_REG(BPF_ADD, R6, R3), BPF_ALU32_REG(BPF_ADD, R6, R4), BPF_ALU32_REG(BPF_ADD, R6, R5), BPF_ALU32_REG(BPF_ADD, R6, R6), BPF_ALU32_REG(BPF_ADD, R6, R7), BPF_ALU32_REG(BPF_ADD, R6, R8), BPF_ALU32_REG(BPF_ADD, R6, R9), /* R6 == 109540 */ BPF_JMP_IMM(BPF_JEQ, R6, 109540, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R7, R0), BPF_ALU32_REG(BPF_ADD, R7, R1), BPF_ALU32_REG(BPF_ADD, R7, R2), BPF_ALU32_REG(BPF_ADD, R7, R3), BPF_ALU32_REG(BPF_ADD, R7, R4), BPF_ALU32_REG(BPF_ADD, R7, R5), BPF_ALU32_REG(BPF_ADD, R7, R6), BPF_ALU32_REG(BPF_ADD, R7, R7), BPF_ALU32_REG(BPF_ADD, R7, R8), BPF_ALU32_REG(BPF_ADD, R7, R9), /* R7 == 328605 */ BPF_JMP_IMM(BPF_JEQ, R7, 328605, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R8, R0), BPF_ALU32_REG(BPF_ADD, R8, R1), BPF_ALU32_REG(BPF_ADD, R8, R2), BPF_ALU32_REG(BPF_ADD, R8, R3), BPF_ALU32_REG(BPF_ADD, R8, R4), BPF_ALU32_REG(BPF_ADD, R8, R5), BPF_ALU32_REG(BPF_ADD, R8, R6), BPF_ALU32_REG(BPF_ADD, R8, R7), BPF_ALU32_REG(BPF_ADD, R8, R8), BPF_ALU32_REG(BPF_ADD, R8, R9), /* R8 == 985799 */ BPF_JMP_IMM(BPF_JEQ, R8, 985799, 1), BPF_EXIT_INSN(), BPF_ALU32_REG(BPF_ADD, R9, R0), BPF_ALU32_REG(BPF_ADD, R9, R1), BPF_ALU32_REG(BPF_ADD, R9, R2), BPF_ALU32_REG(BPF_ADD, R9, R3), BPF_ALU32_REG(BPF_ADD, R9, R4), BPF_ALU32_REG(BPF_ADD, R9, R5), BPF_ALU32_REG(BPF_ADD, R9, R6), BPF_ALU32_REG(BPF_ADD, R9, R7), BPF_ALU32_REG(BPF_ADD, R9, R8), BPF_ALU32_REG(BPF_ADD, R9, R9), /* R9 == 2957380 */ BPF_ALU32_REG(BPF_MOV, R0, R9), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 2957380 } } }, { /* Mainly checking JIT here. */ "INT: SUB", .u.insns_int = { BPF_ALU64_IMM(BPF_MOV, R0, 0), BPF_ALU64_IMM(BPF_MOV, R1, 1), BPF_ALU64_IMM(BPF_MOV, R2, 2), BPF_ALU64_IMM(BPF_MOV, R3, 3), BPF_ALU64_IMM(BPF_MOV, R4, 4), BPF_ALU64_IMM(BPF_MOV, R5, 5), BPF_ALU64_IMM(BPF_MOV, R6, 6), BPF_ALU64_IMM(BPF_MOV, R7, 7), BPF_ALU64_IMM(BPF_MOV, R8, 8), BPF_ALU64_IMM(BPF_MOV, R9, 9), BPF_ALU64_REG(BPF_SUB, R0, R0), BPF_ALU64_REG(BPF_SUB, R0, R1), BPF_ALU64_REG(BPF_SUB, R0, R2), BPF_ALU64_REG(BPF_SUB, R0, R3), BPF_ALU64_REG(BPF_SUB, R0, R4), BPF_ALU64_REG(BPF_SUB, R0, R5), BPF_ALU64_REG(BPF_SUB, R0, R6), BPF_ALU64_REG(BPF_SUB, R0, R7), BPF_ALU64_REG(BPF_SUB, R0, R8), BPF_ALU64_REG(BPF_SUB, R0, R9), BPF_ALU64_IMM(BPF_SUB, R0, 10), BPF_JMP_IMM(BPF_JEQ, R0, -55, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R1, R0), BPF_ALU64_REG(BPF_SUB, R1, R2), BPF_ALU64_REG(BPF_SUB, R1, R3), BPF_ALU64_REG(BPF_SUB, R1, R4), BPF_ALU64_REG(BPF_SUB, R1, R5), BPF_ALU64_REG(BPF_SUB, R1, R6), BPF_ALU64_REG(BPF_SUB, R1, R7), BPF_ALU64_REG(BPF_SUB, R1, R8), BPF_ALU64_REG(BPF_SUB, R1, R9), BPF_ALU64_IMM(BPF_SUB, R1, 10), BPF_ALU64_REG(BPF_SUB, R2, R0), BPF_ALU64_REG(BPF_SUB, R2, R1), BPF_ALU64_REG(BPF_SUB, R2, R3), BPF_ALU64_REG(BPF_SUB, R2, R4), BPF_ALU64_REG(BPF_SUB, R2, R5), BPF_ALU64_REG(BPF_SUB, R2, R6), BPF_ALU64_REG(BPF_SUB, R2, R7), BPF_ALU64_REG(BPF_SUB, R2, R8), BPF_ALU64_REG(BPF_SUB, R2, R9), BPF_ALU64_IMM(BPF_SUB, R2, 10), BPF_ALU64_REG(BPF_SUB, R3, R0), BPF_ALU64_REG(BPF_SUB, R3, R1), BPF_ALU64_REG(BPF_SUB, R3, R2), BPF_ALU64_REG(BPF_SUB, R3, R4), BPF_ALU64_REG(BPF_SUB, R3, R5), BPF_ALU64_REG(BPF_SUB, R3, R6), BPF_ALU64_REG(BPF_SUB, R3, R7), BPF_ALU64_REG(BPF_SUB, R3, R8), BPF_ALU64_REG(BPF_SUB, R3, R9), BPF_ALU64_IMM(BPF_SUB, R3, 10), BPF_ALU64_REG(BPF_SUB, R4, R0), BPF_ALU64_REG(BPF_SUB, R4, R1), BPF_ALU64_REG(BPF_SUB, R4, R2), BPF_ALU64_REG(BPF_SUB, R4, R3), BPF_ALU64_REG(BPF_SUB, R4, R5), BPF_ALU64_REG(BPF_SUB, R4, R6), BPF_ALU64_REG(BPF_SUB, R4, R7), BPF_ALU64_REG(BPF_SUB, R4, R8), BPF_ALU64_REG(BPF_SUB, R4, R9), BPF_ALU64_IMM(BPF_SUB, R4, 10), BPF_ALU64_REG(BPF_SUB, R5, R0), BPF_ALU64_REG(BPF_SUB, R5, R1), BPF_ALU64_REG(BPF_SUB, R5, R2), BPF_ALU64_REG(BPF_SUB, R5, R3), BPF_ALU64_REG(BPF_SUB, R5, R4), BPF_ALU64_REG(BPF_SUB, R5, R6), BPF_ALU64_REG(BPF_SUB, R5, R7), BPF_ALU64_REG(BPF_SUB, R5, R8), BPF_ALU64_REG(BPF_SUB, R5, R9), BPF_ALU64_IMM(BPF_SUB, R5, 10), BPF_ALU64_REG(BPF_SUB, R6, R0), BPF_ALU64_REG(BPF_SUB, R6, R1), BPF_ALU64_REG(BPF_SUB, R6, R2), BPF_ALU64_REG(BPF_SUB, R6, R3), BPF_ALU64_REG(BPF_SUB, R6, R4), BPF_ALU64_REG(BPF_SUB, R6, R5), BPF_ALU64_REG(BPF_SUB, R6, R7), BPF_ALU64_REG(BPF_SUB, R6, R8), BPF_ALU64_REG(BPF_SUB, R6, R9), BPF_ALU64_IMM(BPF_SUB, R6, 10), BPF_ALU64_REG(BPF_SUB, R7, R0), BPF_ALU64_REG(BPF_SUB, R7, R1), BPF_ALU64_REG(BPF_SUB, R7, R2), BPF_ALU64_REG(BPF_SUB, R7, R3), BPF_ALU64_REG(BPF_SUB, R7, R4), BPF_ALU64_REG(BPF_SUB, R7, R5), BPF_ALU64_REG(BPF_SUB, R7, R6), BPF_ALU64_REG(BPF_SUB, R7, R8), BPF_ALU64_REG(BPF_SUB, R7, R9), BPF_ALU64_IMM(BPF_SUB, R7, 10), BPF_ALU64_REG(BPF_SUB, R8, R0), BPF_ALU64_REG(BPF_SUB, R8, R1), BPF_ALU64_REG(BPF_SUB, R8, R2), BPF_ALU64_REG(BPF_SUB, R8, R3), BPF_ALU64_REG(BPF_SUB, R8, R4), BPF_ALU64_REG(BPF_SUB, R8, R5), BPF_ALU64_REG(BPF_SUB, R8, R6), BPF_ALU64_REG(BPF_SUB, R8, R7), BPF_ALU64_REG(BPF_SUB, R8, R9), BPF_ALU64_IMM(BPF_SUB, R8, 10), BPF_ALU64_REG(BPF_SUB, R9, R0), BPF_ALU64_REG(BPF_SUB, R9, R1), BPF_ALU64_REG(BPF_SUB, R9, R2), BPF_ALU64_REG(BPF_SUB, R9, R3), BPF_ALU64_REG(BPF_SUB, R9, R4), BPF_ALU64_REG(BPF_SUB, R9, R5), BPF_ALU64_REG(BPF_SUB, R9, R6), BPF_ALU64_REG(BPF_SUB, R9, R7), BPF_ALU64_REG(BPF_SUB, R9, R8), BPF_ALU64_IMM(BPF_SUB, R9, 10), BPF_ALU64_IMM(BPF_SUB, R0, 10), BPF_ALU64_IMM(BPF_NEG, R0, 0), BPF_ALU64_REG(BPF_SUB, R0, R1), BPF_ALU64_REG(BPF_SUB, R0, R2), BPF_ALU64_REG(BPF_SUB, R0, R3), BPF_ALU64_REG(BPF_SUB, R0, R4), BPF_ALU64_REG(BPF_SUB, R0, R5), BPF_ALU64_REG(BPF_SUB, R0, R6), BPF_ALU64_REG(BPF_SUB, R0, R7), BPF_ALU64_REG(BPF_SUB, R0, R8), BPF_ALU64_REG(BPF_SUB, R0, R9), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 11 } } }, { /* Mainly checking JIT here. */ "INT: XOR", .u.insns_int = { BPF_ALU64_REG(BPF_SUB, R0, R0), BPF_ALU64_REG(BPF_XOR, R1, R1), BPF_JMP_REG(BPF_JEQ, R0, R1, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_MOV, R0, 10), BPF_ALU64_IMM(BPF_MOV, R1, -1), BPF_ALU64_REG(BPF_SUB, R1, R1), BPF_ALU64_REG(BPF_XOR, R2, R2), BPF_JMP_REG(BPF_JEQ, R1, R2, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R2, R2), BPF_ALU64_REG(BPF_XOR, R3, R3), BPF_ALU64_IMM(BPF_MOV, R0, 10), BPF_ALU64_IMM(BPF_MOV, R1, -1), BPF_JMP_REG(BPF_JEQ, R2, R3, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R3, R3), BPF_ALU64_REG(BPF_XOR, R4, R4), BPF_ALU64_IMM(BPF_MOV, R2, 1), BPF_ALU64_IMM(BPF_MOV, R5, -1), BPF_JMP_REG(BPF_JEQ, R3, R4, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R4, R4), BPF_ALU64_REG(BPF_XOR, R5, R5), BPF_ALU64_IMM(BPF_MOV, R3, 1), BPF_ALU64_IMM(BPF_MOV, R7, -1), BPF_JMP_REG(BPF_JEQ, R5, R4, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_MOV, R5, 1), BPF_ALU64_REG(BPF_SUB, R5, R5), BPF_ALU64_REG(BPF_XOR, R6, R6), BPF_ALU64_IMM(BPF_MOV, R1, 1), BPF_ALU64_IMM(BPF_MOV, R8, -1), BPF_JMP_REG(BPF_JEQ, R5, R6, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R6, R6), BPF_ALU64_REG(BPF_XOR, R7, R7), BPF_JMP_REG(BPF_JEQ, R7, R6, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R7, R7), BPF_ALU64_REG(BPF_XOR, R8, R8), BPF_JMP_REG(BPF_JEQ, R7, R8, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R8, R8), BPF_ALU64_REG(BPF_XOR, R9, R9), BPF_JMP_REG(BPF_JEQ, R9, R8, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R9, R9), BPF_ALU64_REG(BPF_XOR, R0, R0), BPF_JMP_REG(BPF_JEQ, R9, R0, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_SUB, R1, R1), BPF_ALU64_REG(BPF_XOR, R0, R0), BPF_JMP_REG(BPF_JEQ, R9, R0, 2), BPF_ALU64_IMM(BPF_MOV, R0, 0), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_MOV, R0, 1), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 1 } } }, { /* Mainly checking JIT here. */ "INT: MUL", .u.insns_int = { BPF_ALU64_IMM(BPF_MOV, R0, 11), BPF_ALU64_IMM(BPF_MOV, R1, 1), BPF_ALU64_IMM(BPF_MOV, R2, 2), BPF_ALU64_IMM(BPF_MOV, R3, 3), BPF_ALU64_IMM(BPF_MOV, R4, 4), BPF_ALU64_IMM(BPF_MOV, R5, 5), BPF_ALU64_IMM(BPF_MOV, R6, 6), BPF_ALU64_IMM(BPF_MOV, R7, 7), BPF_ALU64_IMM(BPF_MOV, R8, 8), BPF_ALU64_IMM(BPF_MOV, R9, 9), BPF_ALU64_REG(BPF_MUL, R0, R0), BPF_ALU64_REG(BPF_MUL, R0, R1), BPF_ALU64_REG(BPF_MUL, R0, R2), BPF_ALU64_REG(BPF_MUL, R0, R3), BPF_ALU64_REG(BPF_MUL, R0, R4), BPF_ALU64_REG(BPF_MUL, R0, R5), BPF_ALU64_REG(BPF_MUL, R0, R6), BPF_ALU64_REG(BPF_MUL, R0, R7), BPF_ALU64_REG(BPF_MUL, R0, R8), BPF_ALU64_REG(BPF_MUL, R0, R9), BPF_ALU64_IMM(BPF_MUL, R0, 10), BPF_JMP_IMM(BPF_JEQ, R0, 439084800, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_MUL, R1, R0), BPF_ALU64_REG(BPF_MUL, R1, R2), BPF_ALU64_REG(BPF_MUL, R1, R3), BPF_ALU64_REG(BPF_MUL, R1, R4), BPF_ALU64_REG(BPF_MUL, R1, R5), BPF_ALU64_REG(BPF_MUL, R1, R6), BPF_ALU64_REG(BPF_MUL, R1, R7), BPF_ALU64_REG(BPF_MUL, R1, R8), BPF_ALU64_REG(BPF_MUL, R1, R9), BPF_ALU64_IMM(BPF_MUL, R1, 10), BPF_ALU64_REG(BPF_MOV, R2, R1), BPF_ALU64_IMM(BPF_RSH, R2, 32), BPF_JMP_IMM(BPF_JEQ, R2, 0x5a924, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_LSH, R1, 32), BPF_ALU64_IMM(BPF_ARSH, R1, 32), BPF_JMP_IMM(BPF_JEQ, R1, 0xebb90000, 1), BPF_EXIT_INSN(), BPF_ALU64_REG(BPF_MUL, R2, R0), BPF_ALU64_REG(BPF_MUL, R2, R1), BPF_ALU64_REG(BPF_MUL, R2, R3), BPF_ALU64_REG(BPF_MUL, R2, R4), BPF_ALU64_REG(BPF_MUL, R2, R5), BPF_ALU64_REG(BPF_MUL, R2, R6), BPF_ALU64_REG(BPF_MUL, R2, R7), BPF_ALU64_REG(BPF_MUL, R2, R8), BPF_ALU64_REG(BPF_MUL, R2, R9), BPF_ALU64_IMM(BPF_MUL, R2, 10), BPF_ALU64_IMM(BPF_RSH, R2, 32), BPF_ALU64_REG(BPF_MOV, R0, R2), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 0x35d97ef2 } } }, { "INT: ALU MIX", .u.insns_int = { BPF_ALU64_IMM(BPF_MOV, R0, 11), BPF_ALU64_IMM(BPF_ADD, R0, -1), BPF_ALU64_IMM(BPF_MOV, R2, 2), BPF_ALU64_IMM(BPF_XOR, R2, 3), BPF_ALU64_REG(BPF_DIV, R0, R2), BPF_JMP_IMM(BPF_JEQ, R0, 10, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_MOD, R0, 3), BPF_JMP_IMM(BPF_JEQ, R0, 1, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_MOV, R0, -1), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, -1 } } }, { "INT: shifts by register", .u.insns_int = { BPF_MOV64_IMM(R0, -1234), BPF_MOV64_IMM(R1, 1), BPF_ALU32_REG(BPF_RSH, R0, R1), BPF_JMP_IMM(BPF_JEQ, R0, 0x7ffffd97, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(R2, 1), BPF_ALU64_REG(BPF_LSH, R0, R2), BPF_MOV32_IMM(R4, -1234), BPF_JMP_REG(BPF_JEQ, R0, R4, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_AND, R4, 63), BPF_ALU64_REG(BPF_LSH, R0, R4), /* R0 <= 46 */ BPF_MOV64_IMM(R3, 47), BPF_ALU64_REG(BPF_ARSH, R0, R3), BPF_JMP_IMM(BPF_JEQ, R0, -617, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(R2, 1), BPF_ALU64_REG(BPF_LSH, R4, R2), /* R4 = 46 << 1 */ BPF_JMP_IMM(BPF_JEQ, R4, 92, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(R4, 4), BPF_ALU64_REG(BPF_LSH, R4, R4), /* R4 = 4 << 4 */ BPF_JMP_IMM(BPF_JEQ, R4, 64, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(R4, 5), BPF_ALU32_REG(BPF_LSH, R4, R4), /* R4 = 5 << 5 */ BPF_JMP_IMM(BPF_JEQ, R4, 160, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(R0, -1), BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, -1 } } }, { "INT: DIV + ABS", .u.insns_int = { BPF_ALU64_REG(BPF_MOV, R6, R1), BPF_LD_ABS(BPF_B, 3), BPF_ALU64_IMM(BPF_MOV, R2, 2), BPF_ALU32_REG(BPF_DIV, R0, R2), BPF_ALU64_REG(BPF_MOV, R8, R0), BPF_LD_ABS(BPF_B, 4), BPF_ALU64_REG(BPF_ADD, R8, R0), BPF_LD_IND(BPF_B, R8, -70), BPF_EXIT_INSN(), }, INTERNAL, { 10, 20, 30, 40, 50 }, { { 4, 0 }, { 5, 10 } } }, { "INT: DIV by zero", .u.insns_int = { BPF_ALU64_REG(BPF_MOV, R6, R1), BPF_ALU64_IMM(BPF_MOV, R7, 0), BPF_LD_ABS(BPF_B, 3), BPF_ALU32_REG(BPF_DIV, R0, R7), BPF_EXIT_INSN(), }, INTERNAL, { 10, 20, 30, 40, 50 }, { { 3, 0 }, { 4, 0 } } }, { "check: missing ret", .u.insns = { BPF_STMT(BPF_LD | BPF_IMM, 1), }, CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL, { }, { } }, { "check: div_k_0", .u.insns = { BPF_STMT(BPF_ALU | BPF_DIV | BPF_K, 0), BPF_STMT(BPF_RET | BPF_K, 0) }, CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL, { }, { } }, { "check: unknown insn", .u.insns = { /* seccomp insn, rejected in socket filter */ BPF_STMT(BPF_LDX | BPF_W | BPF_ABS, 0), BPF_STMT(BPF_RET | BPF_K, 0) }, CLASSIC | FLAG_EXPECTED_FAIL, { }, { } }, { "check: out of range spill/fill", .u.insns = { BPF_STMT(BPF_STX, 16), BPF_STMT(BPF_RET | BPF_K, 0) }, CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL, { }, { } }, { "JUMPS + HOLES", .u.insns = { BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_JUMP(BPF_JMP | BPF_JGE, 0, 13, 15), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_JUMP(BPF_JMP | BPF_JEQ, 0x90c2894d, 3, 4), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_JUMP(BPF_JMP | BPF_JEQ, 0x90c2894d, 1, 2), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_JUMP(BPF_JMP | BPF_JGE, 0, 14, 15), BPF_JUMP(BPF_JMP | BPF_JGE, 0, 13, 14), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_JUMP(BPF_JMP | BPF_JEQ, 0x2ac28349, 2, 3), BPF_JUMP(BPF_JMP | BPF_JEQ, 0x2ac28349, 1, 2), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_JUMP(BPF_JMP | BPF_JGE, 0, 14, 15), BPF_JUMP(BPF_JMP | BPF_JGE, 0, 13, 14), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_JUMP(BPF_JMP | BPF_JEQ, 0x90d2ff41, 2, 3), BPF_JUMP(BPF_JMP | BPF_JEQ, 0x90d2ff41, 1, 2), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0), BPF_STMT(BPF_RET | BPF_A, 0), BPF_STMT(BPF_RET | BPF_A, 0), }, CLASSIC, { 0x00, 0x1b, 0x21, 0x3c, 0x9d, 0xf8, 0x90, 0xe2, 0xba, 0x0a, 0x56, 0xb4, 0x08, 0x00, 0x45, 0x00, 0x00, 0x28, 0x00, 0x00, 0x20, 0x00, 0x40, 0x11, 0x00, 0x00, /* IP header */ 0xc0, 0xa8, 0x33, 0x01, 0xc0, 0xa8, 0x33, 0x02, 0xbb, 0xb6, 0xa9, 0xfa, 0x00, 0x14, 0x00, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc }, { { 88, 0x001b } } }, { "check: RET X", .u.insns = { BPF_STMT(BPF_RET | BPF_X, 0), }, CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL, { }, { }, }, { "check: LDX + RET X", .u.insns = { BPF_STMT(BPF_LDX | BPF_IMM, 42), BPF_STMT(BPF_RET | BPF_X, 0), }, CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL, { }, { }, }, { /* Mainly checking JIT here. */ "M[]: alt STX + LDX", .u.insns = { BPF_STMT(BPF_LDX | BPF_IMM, 100), BPF_STMT(BPF_STX, 0), BPF_STMT(BPF_LDX | BPF_MEM, 0), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 1), BPF_STMT(BPF_LDX | BPF_MEM, 1), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 2), BPF_STMT(BPF_LDX | BPF_MEM, 2), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 3), BPF_STMT(BPF_LDX | BPF_MEM, 3), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 4), BPF_STMT(BPF_LDX | BPF_MEM, 4), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 5), BPF_STMT(BPF_LDX | BPF_MEM, 5), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 6), BPF_STMT(BPF_LDX | BPF_MEM, 6), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 7), BPF_STMT(BPF_LDX | BPF_MEM, 7), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 8), BPF_STMT(BPF_LDX | BPF_MEM, 8), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 9), BPF_STMT(BPF_LDX | BPF_MEM, 9), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 10), BPF_STMT(BPF_LDX | BPF_MEM, 10), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 11), BPF_STMT(BPF_LDX | BPF_MEM, 11), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 12), BPF_STMT(BPF_LDX | BPF_MEM, 12), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 13), BPF_STMT(BPF_LDX | BPF_MEM, 13), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 14), BPF_STMT(BPF_LDX | BPF_MEM, 14), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_STX, 15), BPF_STMT(BPF_LDX | BPF_MEM, 15), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1), BPF_STMT(BPF_MISC | BPF_TAX, 0), BPF_STMT(BPF_RET | BPF_A, 0), }, CLASSIC | FLAG_NO_DATA, { }, { { 0, 116 } }, }, { /* Mainly checking JIT here. */ "M[]: full STX + full LDX", .u.insns = { BPF_STMT(BPF_LDX | BPF_IMM, 0xbadfeedb), BPF_STMT(BPF_STX, 0), BPF_STMT(BPF_LDX | BPF_IMM, 0xecabedae), BPF_STMT(BPF_STX, 1), BPF_STMT(BPF_LDX | BPF_IMM, 0xafccfeaf), BPF_STMT(BPF_STX, 2), BPF_STMT(BPF_LDX | BPF_IMM, 0xbffdcedc), BPF_STMT(BPF_STX, 3), BPF_STMT(BPF_LDX | BPF_IMM, 0xfbbbdccb), BPF_STMT(BPF_STX, 4), BPF_STMT(BPF_LDX | BPF_IMM, 0xfbabcbda), BPF_STMT(BPF_STX, 5), BPF_STMT(BPF_LDX | BPF_IMM, 0xaedecbdb), BPF_STMT(BPF_STX, 6), BPF_STMT(BPF_LDX | BPF_IMM, 0xadebbade), BPF_STMT(BPF_STX, 7), BPF_STMT(BPF_LDX | BPF_IMM, 0xfcfcfaec), BPF_STMT(BPF_STX, 8), BPF_STMT(BPF_LDX | BPF_IMM, 0xbcdddbdc), BPF_STMT(BPF_STX, 9), BPF_STMT(BPF_LDX | BPF_IMM, 0xfeefdfac), BPF_STMT(BPF_STX, 10), BPF_STMT(BPF_LDX | BPF_IMM, 0xcddcdeea), BPF_STMT(BPF_STX, 11), BPF_STMT(BPF_LDX | BPF_IMM, 0xaccfaebb), BPF_STMT(BPF_STX, 12), BPF_STMT(BPF_LDX | BPF_IMM, 0xbdcccdcf), BPF_STMT(BPF_STX, 13), BPF_STMT(BPF_LDX | BPF_IMM, 0xaaedecde), BPF_STMT(BPF_STX, 14), BPF_STMT(BPF_LDX | BPF_IMM, 0xfaeacdad), BPF_STMT(BPF_STX, 15), BPF_STMT(BPF_LDX | BPF_MEM, 0), BPF_STMT(BPF_MISC | BPF_TXA, 0), BPF_STMT(BPF_LDX | BPF_MEM, 1), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 2), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 3), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 4), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 5), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 6), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 7), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 8), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 9), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 10), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 11), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 12), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 13), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 14), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_LDX | BPF_MEM, 15), BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), BPF_STMT(BPF_RET | BPF_A, 0), }, CLASSIC | FLAG_NO_DATA, { }, { { 0, 0x2a5a5e5 } }, }, { "check: SKF_AD_MAX", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF + SKF_AD_MAX), BPF_STMT(BPF_RET | BPF_A, 0), }, CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL, { }, { }, }, { /* Passes checker but fails during runtime. */ "LD [SKF_AD_OFF-1]", .u.insns = { BPF_STMT(BPF_LD | BPF_W | BPF_ABS, SKF_AD_OFF - 1), BPF_STMT(BPF_RET | BPF_K, 1), }, CLASSIC, { }, { { 1, 0 } }, }, { "load 64-bit immediate", .u.insns_int = { BPF_LD_IMM64(R1, 0x567800001234LL), BPF_MOV64_REG(R2, R1), BPF_MOV64_REG(R3, R2), BPF_ALU64_IMM(BPF_RSH, R2, 32), BPF_ALU64_IMM(BPF_LSH, R3, 32), BPF_ALU64_IMM(BPF_RSH, R3, 32), BPF_ALU64_IMM(BPF_MOV, R0, 0), BPF_JMP_IMM(BPF_JEQ, R2, 0x5678, 1), BPF_EXIT_INSN(), BPF_JMP_IMM(BPF_JEQ, R3, 0x1234, 1), BPF_EXIT_INSN(), BPF_LD_IMM64(R0, 0x1ffffffffLL), BPF_ALU64_IMM(BPF_RSH, R0, 32), /* R0 = 1 */ BPF_EXIT_INSN(), }, INTERNAL, { }, { { 0, 1 } } }, { "nmap reduced", .u.insns_int = { BPF_MOV64_REG(R6, R1), BPF_LD_ABS(BPF_H, 12), BPF_JMP_IMM(BPF_JNE, R0, 0x806, 28), BPF_LD_ABS(BPF_H, 12), BPF_JMP_IMM(BPF_JNE, R0, 0x806, 26), BPF_MOV32_IMM(R0, 18), BPF_STX_MEM(BPF_W, R10, R0, -64), BPF_LDX_MEM(BPF_W, R7, R10, -64), BPF_LD_IND(BPF_W, R7, 14), BPF_STX_MEM(BPF_W, R10, R0, -60), BPF_MOV32_IMM(R0, 280971478), BPF_STX_MEM(BPF_W, R10, R0, -56), BPF_LDX_MEM(BPF_W, R7, R10, -56), BPF_LDX_MEM(BPF_W, R0, R10, -60), BPF_ALU32_REG(BPF_SUB, R0, R7), BPF_JMP_IMM(BPF_JNE, R0, 0, 15), BPF_LD_ABS(BPF_H, 12), BPF_JMP_IMM(BPF_JNE, R0, 0x806, 13), BPF_MOV32_IMM(R0, 22), BPF_STX_MEM(BPF_W, R10, R0, -56), BPF_LDX_MEM(BPF_W, R7, R10, -56), BPF_LD_IND(BPF_H, R7, 14), BPF_STX_MEM(BPF_W, R10, R0, -52), BPF_MOV32_IMM(R0, 17366), BPF_STX_MEM(BPF_W, R10, R0, -48), BPF_LDX_MEM(BPF_W, R7, R10, -48), BPF_LDX_MEM(BPF_W, R0, R10, -52), BPF_ALU32_REG(BPF_SUB, R0, R7), BPF_JMP_IMM(BPF_JNE, R0, 0, 2), BPF_MOV32_IMM(R0, 256), BPF_EXIT_INSN(), BPF_MOV32_IMM(R0, 0), BPF_EXIT_INSN(), }, INTERNAL, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x06, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10, 0xbf, 0x48, 0xd6, 0x43, 0xd6}, { { 38, 256 } } }, }; static struct net_device dev; static struct sk_buff *populate_skb(char *buf, int size) { struct sk_buff *skb; if (size >= MAX_DATA) return NULL; skb = alloc_skb(MAX_DATA, GFP_KERNEL); if (!skb) return NULL; memcpy(__skb_put(skb, size), buf, size); /* Initialize a fake skb with test pattern. */ skb_reset_mac_header(skb); skb->protocol = htons(ETH_P_IP); skb->pkt_type = SKB_TYPE; skb->mark = SKB_MARK; skb->hash = SKB_HASH; skb->queue_mapping = SKB_QUEUE_MAP; skb->vlan_tci = SKB_VLAN_TCI; skb->dev = &dev; skb->dev->ifindex = SKB_DEV_IFINDEX; skb->dev->type = SKB_DEV_TYPE; skb_set_network_header(skb, min(size, ETH_HLEN)); return skb; } static void *generate_test_data(struct bpf_test *test, int sub) { if (test->aux & FLAG_NO_DATA) return NULL; /* Test case expects an skb, so populate one. Various * subtests generate skbs of different sizes based on * the same data. */ return populate_skb(test->data, test->test[sub].data_size); } static void release_test_data(const struct bpf_test *test, void *data) { if (test->aux & FLAG_NO_DATA) return; kfree_skb(data); } static int probe_filter_length(struct sock_filter *fp) { int len = 0; for (len = MAX_INSNS - 1; len > 0; --len) if (fp[len].code != 0 || fp[len].k != 0) break; return len + 1; } static struct bpf_prog *generate_filter(int which, int *err) { struct bpf_prog *fp; struct sock_fprog_kern fprog; unsigned int flen = probe_filter_length(tests[which].u.insns); __u8 test_type = tests[which].aux & TEST_TYPE_MASK; switch (test_type) { case CLASSIC: fprog.filter = tests[which].u.insns; fprog.len = flen; *err = bpf_prog_create(&fp, &fprog); if (tests[which].aux & FLAG_EXPECTED_FAIL) { if (*err == -EINVAL) { pr_cont("PASS\n"); /* Verifier rejected filter as expected. */ *err = 0; return NULL; } else { pr_cont("UNEXPECTED_PASS\n"); /* Verifier didn't reject the test that's * bad enough, just return! */ *err = -EINVAL; return NULL; } } /* We don't expect to fail. */ if (*err) { pr_cont("FAIL to attach err=%d len=%d\n", *err, fprog.len); return NULL; } break; case INTERNAL: fp = bpf_prog_alloc(bpf_prog_size(flen), 0); if (fp == NULL) { pr_cont("UNEXPECTED_FAIL no memory left\n"); *err = -ENOMEM; return NULL; } fp->len = flen; memcpy(fp->insnsi, tests[which].u.insns_int, fp->len * sizeof(struct bpf_insn)); bpf_prog_select_runtime(fp); break; } *err = 0; return fp; } static void release_filter(struct bpf_prog *fp, int which) { __u8 test_type = tests[which].aux & TEST_TYPE_MASK; switch (test_type) { case CLASSIC: bpf_prog_destroy(fp); break; case INTERNAL: bpf_prog_free(fp); break; } } static int __run_one(const struct bpf_prog *fp, const void *data, int runs, u64 *duration) { u64 start, finish; int ret = 0, i; start = ktime_to_us(ktime_get()); for (i = 0; i < runs; i++) ret = BPF_PROG_RUN(fp, data); finish = ktime_to_us(ktime_get()); *duration = (finish - start) * 1000ULL; do_div(*duration, runs); return ret; } static int run_one(const struct bpf_prog *fp, struct bpf_test *test) { int err_cnt = 0, i, runs = MAX_TESTRUNS; for (i = 0; i < MAX_SUBTESTS; i++) { void *data; u64 duration; u32 ret; if (test->test[i].data_size == 0 && test->test[i].result == 0) break; data = generate_test_data(test, i); ret = __run_one(fp, data, runs, &duration); release_test_data(test, data); if (ret == test->test[i].result) { pr_cont("%lld ", duration); } else { pr_cont("ret %d != %d ", ret, test->test[i].result); err_cnt++; } } return err_cnt; } static __init int test_bpf(void) { int i, err_cnt = 0, pass_cnt = 0; int jit_cnt = 0, run_cnt = 0; for (i = 0; i < ARRAY_SIZE(tests); i++) { struct bpf_prog *fp; int err; pr_info("#%d %s ", i, tests[i].descr); fp = generate_filter(i, &err); if (fp == NULL) { if (err == 0) { pass_cnt++; continue; } return err; } pr_cont("jited:%u ", fp->jited); run_cnt++; if (fp->jited) jit_cnt++; err = run_one(fp, &tests[i]); release_filter(fp, i); if (err) { pr_cont("FAIL (%d times)\n", err); err_cnt++; } else { pr_cont("PASS\n"); pass_cnt++; } } pr_info("Summary: %d PASSED, %d FAILED, [%d/%d JIT'ed]\n", pass_cnt, err_cnt, jit_cnt, run_cnt); return err_cnt ? -EINVAL : 0; } static int __init test_bpf_init(void) { return test_bpf(); } static void __exit test_bpf_exit(void) { } module_init(test_bpf_init); module_exit(test_bpf_exit); MODULE_LICENSE("GPL");