| // Copyright (c) 2015 Big Switch Networks, Inc |
| // SPDX-License-Identifier: Apache-2.0 |
| |
| /* |
| * Copyright 2015 Big Switch Networks, Inc |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef EBPF_H |
| #define EBPF_H |
| |
| #include <stdint.h> |
| |
| /* eBPF definitions */ |
| |
| struct ebpf_inst |
| { |
| uint8_t opcode; |
| uint8_t dst : 4; |
| uint8_t src : 4; |
| int16_t offset; |
| int32_t imm; |
| }; |
| |
| #define EBPF_CLS_MASK 0x07 |
| #define EBPF_ALU_OP_MASK 0xf0 |
| #define EBPF_JMP_OP_MASK 0xf0 |
| |
| #define EBPF_CLS_LD 0x00 |
| #define EBPF_CLS_LDX 0x01 |
| #define EBPF_CLS_ST 0x02 |
| #define EBPF_CLS_STX 0x03 |
| #define EBPF_CLS_ALU 0x04 |
| #define EBPF_CLS_JMP 0x05 |
| #define EBPF_CLS_JMP32 0x06 |
| #define EBPF_CLS_ALU64 0x07 |
| |
| #define EBPF_SRC_IMM 0x00 |
| #define EBPF_SRC_REG 0x08 |
| |
| #define EBPF_SIZE_W 0x00 |
| #define EBPF_SIZE_H 0x08 |
| #define EBPF_SIZE_B 0x10 |
| #define EBPF_SIZE_DW 0x18 |
| |
| /* Other memory modes are not yet supported */ |
| #define EBPF_MODE_IMM 0x00 |
| #define EBPF_MODE_MEM 0x60 |
| |
| #define EBPF_OP_ADD_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x00) |
| #define EBPF_OP_ADD_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x00) |
| #define EBPF_OP_SUB_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x10) |
| #define EBPF_OP_SUB_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x10) |
| #define EBPF_OP_MUL_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x20) |
| #define EBPF_OP_MUL_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x20) |
| #define EBPF_OP_DIV_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x30) |
| #define EBPF_OP_DIV_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x30) |
| #define EBPF_OP_OR_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x40) |
| #define EBPF_OP_OR_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x40) |
| #define EBPF_OP_AND_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x50) |
| #define EBPF_OP_AND_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x50) |
| #define EBPF_OP_LSH_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x60) |
| #define EBPF_OP_LSH_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x60) |
| #define EBPF_OP_RSH_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x70) |
| #define EBPF_OP_RSH_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x70) |
| #define EBPF_OP_NEG (EBPF_CLS_ALU | 0x80) |
| #define EBPF_OP_MOD_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0x90) |
| #define EBPF_OP_MOD_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0x90) |
| #define EBPF_OP_XOR_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0xa0) |
| #define EBPF_OP_XOR_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0xa0) |
| #define EBPF_OP_MOV_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0xb0) |
| #define EBPF_OP_MOV_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0xb0) |
| #define EBPF_OP_ARSH_IMM (EBPF_CLS_ALU | EBPF_SRC_IMM | 0xc0) |
| #define EBPF_OP_ARSH_REG (EBPF_CLS_ALU | EBPF_SRC_REG | 0xc0) |
| #define EBPF_OP_LE (EBPF_CLS_ALU | EBPF_SRC_IMM | 0xd0) |
| #define EBPF_OP_BE (EBPF_CLS_ALU | EBPF_SRC_REG | 0xd0) |
| |
| #define EBPF_OP_ADD64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x00) |
| #define EBPF_OP_ADD64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x00) |
| #define EBPF_OP_SUB64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x10) |
| #define EBPF_OP_SUB64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x10) |
| #define EBPF_OP_MUL64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x20) |
| #define EBPF_OP_MUL64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x20) |
| #define EBPF_OP_DIV64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x30) |
| #define EBPF_OP_DIV64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x30) |
| #define EBPF_OP_OR64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x40) |
| #define EBPF_OP_OR64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x40) |
| #define EBPF_OP_AND64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x50) |
| #define EBPF_OP_AND64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x50) |
| #define EBPF_OP_LSH64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x60) |
| #define EBPF_OP_LSH64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x60) |
| #define EBPF_OP_RSH64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x70) |
| #define EBPF_OP_RSH64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x70) |
| #define EBPF_OP_NEG64 (EBPF_CLS_ALU64 | 0x80) |
| #define EBPF_OP_MOD64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0x90) |
| #define EBPF_OP_MOD64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0x90) |
| #define EBPF_OP_XOR64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0xa0) |
| #define EBPF_OP_XOR64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0xa0) |
| #define EBPF_OP_MOV64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0xb0) |
| #define EBPF_OP_MOV64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0xb0) |
| #define EBPF_OP_ARSH64_IMM (EBPF_CLS_ALU64 | EBPF_SRC_IMM | 0xc0) |
| #define EBPF_OP_ARSH64_REG (EBPF_CLS_ALU64 | EBPF_SRC_REG | 0xc0) |
| |
| #define EBPF_OP_LDXW (EBPF_CLS_LDX | EBPF_MODE_MEM | EBPF_SIZE_W) |
| #define EBPF_OP_LDXH (EBPF_CLS_LDX | EBPF_MODE_MEM | EBPF_SIZE_H) |
| #define EBPF_OP_LDXB (EBPF_CLS_LDX | EBPF_MODE_MEM | EBPF_SIZE_B) |
| #define EBPF_OP_LDXDW (EBPF_CLS_LDX | EBPF_MODE_MEM | EBPF_SIZE_DW) |
| #define EBPF_OP_STW (EBPF_CLS_ST | EBPF_MODE_MEM | EBPF_SIZE_W) |
| #define EBPF_OP_STH (EBPF_CLS_ST | EBPF_MODE_MEM | EBPF_SIZE_H) |
| #define EBPF_OP_STB (EBPF_CLS_ST | EBPF_MODE_MEM | EBPF_SIZE_B) |
| #define EBPF_OP_STDW (EBPF_CLS_ST | EBPF_MODE_MEM | EBPF_SIZE_DW) |
| #define EBPF_OP_STXW (EBPF_CLS_STX | EBPF_MODE_MEM | EBPF_SIZE_W) |
| #define EBPF_OP_STXH (EBPF_CLS_STX | EBPF_MODE_MEM | EBPF_SIZE_H) |
| #define EBPF_OP_STXB (EBPF_CLS_STX | EBPF_MODE_MEM | EBPF_SIZE_B) |
| #define EBPF_OP_STXDW (EBPF_CLS_STX | EBPF_MODE_MEM | EBPF_SIZE_DW) |
| #define EBPF_OP_LDDW (EBPF_CLS_LD | EBPF_MODE_IMM | EBPF_SIZE_DW) |
| |
| #define EBPF_MODE_JA 0x00 |
| #define EBPF_MODE_JEQ 0x10 |
| #define EBPF_MODE_JGT 0x20 |
| #define EBPF_MODE_JGE 0x30 |
| #define EBPF_MODE_JSET 0x40 |
| #define EBPF_MODE_JNE 0x50 |
| #define EBPF_MODE_JSGT 0x60 |
| #define EBPF_MODE_JSGE 0x70 |
| #define EBPF_MODE_CALL 0x80 |
| #define EBPF_MODE_EXIT 0x90 |
| #define EBPF_MODE_JLT 0xa0 |
| #define EBPF_MODE_JLE 0xb0 |
| #define EBPF_MODE_JSLT 0xc0 |
| #define EBPF_MODE_JSLE 0xd0 |
| |
| #define EBPF_OP_JA (EBPF_CLS_JMP | EBPF_MODE_JA) |
| #define EBPF_OP_JEQ_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JEQ) |
| #define EBPF_OP_JEQ_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JEQ) |
| #define EBPF_OP_JGT_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JGT) |
| #define EBPF_OP_JGT_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JGT) |
| #define EBPF_OP_JGE_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JGE) |
| #define EBPF_OP_JGE_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JGE) |
| #define EBPF_OP_JSET_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JSET) |
| #define EBPF_OP_JSET_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JSET) |
| #define EBPF_OP_JNE_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JNE) |
| #define EBPF_OP_JNE_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JNE) |
| #define EBPF_OP_JSGT_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JSGT) |
| #define EBPF_OP_JSGT_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JSGT) |
| #define EBPF_OP_JSGE_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JSGE) |
| #define EBPF_OP_JSGE_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JSGE) |
| #define EBPF_OP_CALL (EBPF_CLS_JMP | EBPF_MODE_CALL) |
| #define EBPF_OP_EXIT (EBPF_CLS_JMP | EBPF_MODE_EXIT) |
| #define EBPF_OP_JLT_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JLT) |
| #define EBPF_OP_JLT_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JLT) |
| #define EBPF_OP_JLE_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JLE) |
| #define EBPF_OP_JLE_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JLE) |
| #define EBPF_OP_JSLT_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JSLT) |
| #define EBPF_OP_JSLT_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JSLT) |
| #define EBPF_OP_JSLE_IMM (EBPF_CLS_JMP | EBPF_SRC_IMM | EBPF_MODE_JSLE) |
| #define EBPF_OP_JSLE_REG (EBPF_CLS_JMP | EBPF_SRC_REG | EBPF_MODE_JSLE) |
| |
| #define EBPF_OP_JEQ32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JEQ) |
| #define EBPF_OP_JEQ32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JEQ) |
| #define EBPF_OP_JGT32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JGT) |
| #define EBPF_OP_JGT32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JGT) |
| #define EBPF_OP_JGE32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JGE) |
| #define EBPF_OP_JGE32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JGE) |
| #define EBPF_OP_JSET32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JSET) |
| #define EBPF_OP_JSET32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JSET) |
| #define EBPF_OP_JNE32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JNE) |
| #define EBPF_OP_JNE32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JNE) |
| #define EBPF_OP_JSGT32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JSGT) |
| #define EBPF_OP_JSGT32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JSGT) |
| #define EBPF_OP_JSGE32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JSGE) |
| #define EBPF_OP_JSGE32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JSGE) |
| #define EBPF_OP_JLT32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JLT) |
| #define EBPF_OP_JLT32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JLT) |
| #define EBPF_OP_JLE32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JLE) |
| #define EBPF_OP_JLE32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JLE) |
| #define EBPF_OP_JSLT32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JSLT) |
| #define EBPF_OP_JSLT32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JSLT) |
| #define EBPF_OP_JSLE32_IMM (EBPF_CLS_JMP32 | EBPF_SRC_IMM | EBPF_MODE_JSLE) |
| #define EBPF_OP_JSLE32_REG (EBPF_CLS_JMP32 | EBPF_SRC_REG | EBPF_MODE_JSLE) |
| |
| #endif |
