Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2023 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package android.net.apf |
| 17 | |
Yuyang Huang | c11962e | 2024-02-14 20:37:06 +0900 | [diff] [blame] | 18 | import android.net.apf.ApfCounterTracker.Counter |
| 19 | import android.net.apf.ApfTestUtils.DROP |
Yuyang Huang | 2fdba24 | 2024-02-06 14:52:22 +0900 | [diff] [blame] | 20 | import android.net.apf.ApfTestUtils.MIN_PKT_SIZE |
Yuyang Huang | c11962e | 2024-02-14 20:37:06 +0900 | [diff] [blame] | 21 | import android.net.apf.ApfTestUtils.PASS |
| 22 | import android.net.apf.ApfTestUtils.assertDrop |
Yuyang Huang | 2fdba24 | 2024-02-06 14:52:22 +0900 | [diff] [blame] | 23 | import android.net.apf.ApfTestUtils.assertPass |
Yuyang Huang | c11962e | 2024-02-14 20:37:06 +0900 | [diff] [blame] | 24 | import android.net.apf.ApfTestUtils.assertVerdict |
Yuyang Huang | 2b40247 | 2024-02-13 16:31:55 +0900 | [diff] [blame] | 25 | import android.net.apf.BaseApfGenerator.DROP_LABEL |
Yuyang Huang | bded8e3 | 2024-02-09 13:34:58 +0900 | [diff] [blame] | 26 | import android.net.apf.BaseApfGenerator.IllegalInstructionException |
Yuyang Huang | 12145c9 | 2024-02-09 07:20:15 +0900 | [diff] [blame] | 27 | import android.net.apf.BaseApfGenerator.MIN_APF_VERSION |
| 28 | import android.net.apf.BaseApfGenerator.MIN_APF_VERSION_IN_DEV |
Yuyang Huang | 12145c9 | 2024-02-09 07:20:15 +0900 | [diff] [blame] | 29 | import android.net.apf.BaseApfGenerator.Register.R0 |
| 30 | import android.net.apf.BaseApfGenerator.Register.R1 |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 31 | import androidx.test.filters.SmallTest |
| 32 | import androidx.test.runner.AndroidJUnit4 |
Yuyang Huang | bcfa09b | 2024-02-20 11:20:47 +0900 | [diff] [blame^] | 33 | import com.android.net.module.util.Struct |
| 34 | import com.android.net.module.util.structs.EthernetHeader |
| 35 | import com.android.net.module.util.structs.Ipv4Header |
| 36 | import com.android.net.module.util.structs.UdpHeader |
| 37 | import java.nio.ByteBuffer |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 38 | import kotlin.test.assertContentEquals |
Yuyang Huang | c11962e | 2024-02-14 20:37:06 +0900 | [diff] [blame] | 39 | import kotlin.test.assertEquals |
Yuyang Huang | ce1493a | 2023-12-07 15:29:40 +0900 | [diff] [blame] | 40 | import kotlin.test.assertFailsWith |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 41 | import org.junit.Test |
| 42 | import org.junit.runner.RunWith |
| 43 | |
| 44 | /** |
| 45 | * Tests for APFv6 specific instructions. |
| 46 | */ |
| 47 | @RunWith(AndroidJUnit4::class) |
| 48 | @SmallTest |
| 49 | class ApfV5Test { |
| 50 | |
Yuyang Huang | 2283be7 | 2024-02-08 04:49:08 +0900 | [diff] [blame] | 51 | private val testPacket = byteArrayOf(1, 2, 3, 4, 5, 6, 7, 8, |
| 52 | 9, 10, 11, 12, 13, 14, 15, 16) |
| 53 | |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 54 | @Test |
Yuyang Huang | a112cc8 | 2023-12-13 17:55:47 +0900 | [diff] [blame] | 55 | fun testDataInstructionMustComeFirst() { |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 56 | var gen = ApfV6Generator() |
Yuyang Huang | a112cc8 | 2023-12-13 17:55:47 +0900 | [diff] [blame] | 57 | gen.addAllocateR0() |
| 58 | assertFailsWith<IllegalInstructionException> { gen.addData(ByteArray(3) { 0x01 }) } |
Yuyang Huang | 1e5bfaf | 2023-12-11 00:21:54 +0900 | [diff] [blame] | 59 | } |
| 60 | |
| 61 | @Test |
Yuyang Huang | 3ac843c | 2023-12-13 16:40:15 +0900 | [diff] [blame] | 62 | fun testApfInstructionEncodingSizeCheck() { |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 63 | var gen = ApfV6Generator() |
Yuyang Huang | 3ac843c | 2023-12-13 16:40:15 +0900 | [diff] [blame] | 64 | assertFailsWith<IllegalArgumentException> { gen.addAllocate(65536) } |
| 65 | assertFailsWith<IllegalArgumentException> { gen.addAllocate(-1) } |
Yuyang Huang | 293f7e7 | 2023-12-31 14:24:03 +0900 | [diff] [blame] | 66 | assertFailsWith<IllegalArgumentException> { gen.addDataCopy(-1, 1) } |
| 67 | assertFailsWith<IllegalArgumentException> { gen.addPacketCopy(-1, 1) } |
| 68 | assertFailsWith<IllegalArgumentException> { gen.addDataCopy(1, 256) } |
| 69 | assertFailsWith<IllegalArgumentException> { gen.addPacketCopy(1, 256) } |
| 70 | assertFailsWith<IllegalArgumentException> { gen.addDataCopy(1, -1) } |
| 71 | assertFailsWith<IllegalArgumentException> { gen.addPacketCopy(1, -1) } |
Yuyang Huang | d039061 | 2024-01-01 16:21:16 +0900 | [diff] [blame] | 72 | assertFailsWith<IllegalArgumentException> { gen.addPacketCopyFromR0(256) } |
| 73 | assertFailsWith<IllegalArgumentException> { gen.addDataCopyFromR0(256) } |
Yuyang Huang | 9669784 | 2024-01-02 21:53:48 +0900 | [diff] [blame] | 74 | assertFailsWith<IllegalArgumentException> { gen.addPacketCopyFromR0(-1) } |
| 75 | assertFailsWith<IllegalArgumentException> { gen.addDataCopyFromR0(-1) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 76 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 77 | byteArrayOf(1, 'A'.code.toByte(), 0, 0), 256, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 78 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 79 | byteArrayOf(1, 'a'.code.toByte(), 0, 0), 0x0c, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 80 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 81 | byteArrayOf(1, '.'.code.toByte(), 0, 0), 0x0c, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 82 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 83 | byteArrayOf(0, 0), 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 84 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 85 | byteArrayOf(1, 'A'.code.toByte()), 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 86 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsQ( |
| 87 | byteArrayOf(64) + ByteArray(64) { 'A'.code.toByte() } + byteArrayOf(0, 0), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 88 | 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 89 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsQ( |
| 90 | byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte(), 0), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 91 | 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 92 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsQ( |
| 93 | byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte()), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 94 | 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 95 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 96 | byteArrayOf(1, 'A'.code.toByte(), 0, 0), 256, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 97 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 98 | byteArrayOf(1, 'a'.code.toByte(), 0, 0), 0x0c, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 99 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 100 | byteArrayOf(1, '.'.code.toByte(), 0, 0), 0x0c, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 101 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 102 | byteArrayOf(0, 0), 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 103 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsQ( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 104 | byteArrayOf(1, 'A'.code.toByte()), 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 105 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsQ( |
| 106 | byteArrayOf(64) + ByteArray(64) { 'A'.code.toByte() } + byteArrayOf(0, 0), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 107 | 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 108 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsQ( |
| 109 | byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte(), 0), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 110 | 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 111 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsQ( |
| 112 | byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte()), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 113 | 0xc0, ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 114 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsA( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 115 | byteArrayOf(1, 'a'.code.toByte(), 0, 0), ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 116 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsA( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 117 | byteArrayOf(1, '.'.code.toByte(), 0, 0), ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 118 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsA( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 119 | byteArrayOf(0, 0), ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 120 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsA( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 121 | byteArrayOf(1, 'A'.code.toByte()), ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 122 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsA( |
| 123 | byteArrayOf(64) + ByteArray(64) { 'A'.code.toByte() } + byteArrayOf(0, 0), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 124 | ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 125 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsA( |
| 126 | byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte(), 0), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 127 | ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 128 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0DoesNotContainDnsA( |
| 129 | byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte()), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 130 | ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 131 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsA( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 132 | byteArrayOf(1, 'a'.code.toByte(), 0, 0), ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 133 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsA( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 134 | byteArrayOf(1, '.'.code.toByte(), 0, 0), ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 135 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsA( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 136 | byteArrayOf(0, 0), ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 137 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsA( |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 138 | byteArrayOf(1, 'A'.code.toByte()), ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 139 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsA( |
| 140 | byteArrayOf(64) + ByteArray(64) { 'A'.code.toByte() } + byteArrayOf(0, 0), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 141 | ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 142 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsA( |
| 143 | byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte(), 0), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 144 | ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 145 | assertFailsWith<IllegalArgumentException> { gen.addJumpIfPktAtR0ContainDnsA( |
| 146 | byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte()), |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 147 | ApfV4Generator.DROP_LABEL) } |
Yuyang Huang | ce1493a | 2023-12-07 15:29:40 +0900 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | @Test |
Yuyang Huang | 2b40247 | 2024-02-13 16:31:55 +0900 | [diff] [blame] | 151 | fun testValidateDnsNames() { |
| 152 | // '%' is a valid label character in mDNS subtype |
Yuyang Huang | b31cef2 | 2024-02-13 16:43:33 +0900 | [diff] [blame] | 153 | // byte == 0xff means it is a '*' wildcard, which is a valid encoding. |
Yuyang Huang | 2b40247 | 2024-02-13 16:31:55 +0900 | [diff] [blame] | 154 | val program = ApfV6Generator().addJumpIfPktAtR0ContainDnsQ( |
| 155 | byteArrayOf(1, '%'.code.toByte(), 0, 0), |
| 156 | 1, |
| 157 | DROP_LABEL) |
Yuyang Huang | b31cef2 | 2024-02-13 16:43:33 +0900 | [diff] [blame] | 158 | .addJumpIfPktAtR0ContainDnsA( |
| 159 | byteArrayOf(0xff.toByte(), 1, 'B'.code.toByte(), 0, 0), |
| 160 | DROP_LABEL |
| 161 | ) |
Yuyang Huang | 2b40247 | 2024-02-13 16:31:55 +0900 | [diff] [blame] | 162 | .generate() |
| 163 | } |
| 164 | |
| 165 | @Test |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 166 | fun testApfInstructionsEncoding() { |
Yuyang Huang | afe7b65 | 2024-02-09 09:45:01 +0900 | [diff] [blame] | 167 | val v4gen = ApfV4Generator<ApfV4Generator<BaseApfGenerator>>(MIN_APF_VERSION) |
| 168 | v4gen.addPass() |
| 169 | var program = v4gen.generate() |
Yuyang Huang | dcdb444 | 2023-12-07 14:56:21 +0900 | [diff] [blame] | 170 | // encoding PASS opcode: opcode=0, imm_len=0, R=0 |
Yuyang Huang | 1e5bfaf | 2023-12-11 00:21:54 +0900 | [diff] [blame] | 171 | assertContentEquals( |
| 172 | byteArrayOf(encodeInstruction(opcode = 0, immLength = 0, register = 0)), program) |
Yuyang Huang | 98b99f2 | 2024-01-29 06:35:27 +0900 | [diff] [blame] | 173 | assertContentEquals( |
| 174 | listOf("0: pass"), |
| 175 | ApfJniUtils.disassembleApf(program).map { it.trim() } ) |
Yuyang Huang | dcdb444 | 2023-12-07 14:56:21 +0900 | [diff] [blame] | 176 | |
Yuyang Huang | afe7b65 | 2024-02-09 09:45:01 +0900 | [diff] [blame] | 177 | var gen = ApfV6Generator() |
Yuyang Huang | ce1493a | 2023-12-07 15:29:40 +0900 | [diff] [blame] | 178 | gen.addDrop() |
| 179 | program = gen.generate() |
| 180 | // encoding DROP opcode: opcode=0, imm_len=0, R=1 |
Yuyang Huang | 1e5bfaf | 2023-12-11 00:21:54 +0900 | [diff] [blame] | 181 | assertContentEquals( |
| 182 | byteArrayOf(encodeInstruction(opcode = 0, immLength = 0, register = 1)), program) |
Yuyang Huang | 98b99f2 | 2024-01-29 06:35:27 +0900 | [diff] [blame] | 183 | assertContentEquals( |
| 184 | listOf("0: drop"), |
| 185 | ApfJniUtils.disassembleApf(program).map { it.trim() } ) |
Yuyang Huang | 1e5bfaf | 2023-12-11 00:21:54 +0900 | [diff] [blame] | 186 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 187 | gen = ApfV6Generator() |
Yuyang Huang | 1e5bfaf | 2023-12-11 00:21:54 +0900 | [diff] [blame] | 188 | gen.addCountAndPass(129) |
| 189 | program = gen.generate() |
| 190 | // encoding COUNT(PASS) opcode: opcode=0, imm_len=size_of(imm), R=0, imm=counterNumber |
| 191 | assertContentEquals( |
| 192 | byteArrayOf(encodeInstruction(opcode = 0, immLength = 1, register = 0), |
| 193 | 0x81.toByte()), program) |
Yuyang Huang | 98b99f2 | 2024-01-29 06:35:27 +0900 | [diff] [blame] | 194 | assertContentEquals( |
| 195 | listOf("0: pass 129"), |
| 196 | ApfJniUtils.disassembleApf(program).map { it.trim() } ) |
Yuyang Huang | 1e5bfaf | 2023-12-11 00:21:54 +0900 | [diff] [blame] | 197 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 198 | gen = ApfV6Generator() |
Yuyang Huang | 1e5bfaf | 2023-12-11 00:21:54 +0900 | [diff] [blame] | 199 | gen.addCountAndDrop(1000) |
| 200 | program = gen.generate() |
| 201 | // encoding COUNT(DROP) opcode: opcode=0, imm_len=size_of(imm), R=1, imm=counterNumber |
| 202 | assertContentEquals( |
| 203 | byteArrayOf(encodeInstruction(opcode = 0, immLength = 2, register = 1), |
| 204 | 0x03, 0xe8.toByte()), program) |
Yuyang Huang | 98b99f2 | 2024-01-29 06:35:27 +0900 | [diff] [blame] | 205 | assertContentEquals( |
| 206 | listOf("0: drop 1000"), |
| 207 | ApfJniUtils.disassembleApf(program).map { it.trim() } ) |
Yuyang Huang | ce1493a | 2023-12-07 15:29:40 +0900 | [diff] [blame] | 208 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 209 | gen = ApfV6Generator() |
Yuyang Huang | 3ac843c | 2023-12-13 16:40:15 +0900 | [diff] [blame] | 210 | gen.addAllocateR0() |
| 211 | gen.addAllocate(1500) |
Yuyang Huang | dcdb444 | 2023-12-07 14:56:21 +0900 | [diff] [blame] | 212 | program = gen.generate() |
Yuyang Huang | 3ac843c | 2023-12-13 16:40:15 +0900 | [diff] [blame] | 213 | // encoding ALLOC opcode: opcode=21(EXT opcode number), imm=36(TRANS opcode number). |
| 214 | // R=0 means length stored in R0. R=1 means the length stored in imm1. |
| 215 | assertContentEquals(byteArrayOf( |
| 216 | encodeInstruction(opcode = 21, immLength = 1, register = 0), 36, |
| 217 | encodeInstruction(opcode = 21, immLength = 1, register = 1), 36, 0x05, |
| 218 | 0xDC.toByte()), |
| 219 | program) |
Yuyang Huang | 626414e | 2024-01-29 06:52:57 +0900 | [diff] [blame] | 220 | assertContentEquals(listOf("0: allocate r0", "2: allocate 1500"), |
| 221 | ApfJniUtils.disassembleApf(program).map { it.trim() }) |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 222 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 223 | gen = ApfV6Generator() |
Yuyang Huang | fb80368 | 2024-02-20 17:52:27 +0900 | [diff] [blame] | 224 | gen.addTransmitWithoutChecksum() |
Yuyang Huang | 738fa6d | 2024-02-13 22:03:42 +0900 | [diff] [blame] | 225 | gen.addTransmitL4(30, 40, 50, 256, true) |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 226 | program = gen.generate() |
Maciej Żenczykowski | dbf2f97 | 2024-02-09 23:01:04 -0800 | [diff] [blame] | 227 | // encoding TRANSMIT opcode: opcode=21(EXT opcode number), |
| 228 | // imm=37(TRANSMIT opcode number), |
Yuyang Huang | fd74ce4 | 2023-12-12 20:10:45 +0900 | [diff] [blame] | 229 | assertContentEquals(byteArrayOf( |
Maciej Żenczykowski | dbf2f97 | 2024-02-09 23:01:04 -0800 | [diff] [blame] | 230 | encodeInstruction(opcode = 21, immLength = 1, register = 0), |
| 231 | 37, 255.toByte(), 255.toByte(), |
Yuyang Huang | 738fa6d | 2024-02-13 22:03:42 +0900 | [diff] [blame] | 232 | encodeInstruction(opcode = 21, immLength = 1, register = 1), 37, 30, 40, 50, 1, 0 |
Yuyang Huang | fd74ce4 | 2023-12-12 20:10:45 +0900 | [diff] [blame] | 233 | ), program) |
Yuyang Huang | 738fa6d | 2024-02-13 22:03:42 +0900 | [diff] [blame] | 234 | assertContentEquals(listOf( |
| 235 | "0: transmit ip_ofs=255", |
| 236 | "4: transmitudp ip_ofs=30, csum_ofs=40, csum_start=50, partial_csum=0x0100", |
| 237 | ), ApfJniUtils.disassembleApf(program).map { it.trim() }) |
Yuyang Huang | 73c6d2d | 2023-10-19 13:32:37 +0900 | [diff] [blame] | 238 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 239 | gen = ApfV6Generator() |
Yuyang Huang | a112cc8 | 2023-12-13 17:55:47 +0900 | [diff] [blame] | 240 | val largeByteArray = ByteArray(256) { 0x01 } |
| 241 | gen.addData(largeByteArray) |
| 242 | program = gen.generate() |
| 243 | // encoding DATA opcode: opcode=14(JMP), R=1 |
| 244 | assertContentEquals(byteArrayOf( |
| 245 | encodeInstruction(opcode = 14, immLength = 2, register = 1), 0x01, 0x00) + |
| 246 | largeByteArray, program) |
Yuyang Huang | 937ba49 | 2024-02-04 07:20:32 +0900 | [diff] [blame] | 247 | assertContentEquals(listOf("0: data 256, " + "01".repeat(256) ), |
Yuyang Huang | f97b28a | 2024-01-29 09:36:25 +0900 | [diff] [blame] | 248 | ApfJniUtils.disassembleApf(program).map { it.trim() }) |
Yuyang Huang | a112cc8 | 2023-12-13 17:55:47 +0900 | [diff] [blame] | 249 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 250 | gen = ApfV6Generator() |
Yuyang Huang | adf6967 | 2024-01-02 10:18:11 +0900 | [diff] [blame] | 251 | gen.addWriteU8(0x01) |
| 252 | gen.addWriteU16(0x0102) |
| 253 | gen.addWriteU32(0x01020304) |
| 254 | gen.addWriteU8(0x00) |
| 255 | gen.addWriteU8(0x80) |
| 256 | gen.addWriteU16(0x0000) |
| 257 | gen.addWriteU16(0x8000) |
| 258 | gen.addWriteU32(0x00000000) |
| 259 | gen.addWriteU32(0x80000000) |
Yuyang Huang | 4ac891f | 2023-12-20 11:49:11 +0900 | [diff] [blame] | 260 | program = gen.generate() |
| 261 | assertContentEquals(byteArrayOf( |
| 262 | encodeInstruction(24, 1, 0), 0x01, |
| 263 | encodeInstruction(24, 2, 0), 0x01, 0x02, |
| 264 | encodeInstruction(24, 4, 0), 0x01, 0x02, 0x03, 0x04, |
| 265 | encodeInstruction(24, 1, 0), 0x00, |
| 266 | encodeInstruction(24, 1, 0), 0x80.toByte(), |
| 267 | encodeInstruction(24, 2, 0), 0x00, 0x00, |
| 268 | encodeInstruction(24, 2, 0), 0x80.toByte(), 0x00, |
| 269 | encodeInstruction(24, 4, 0), 0x00, 0x00, 0x00, 0x00, |
| 270 | encodeInstruction(24, 4, 0), 0x80.toByte(), 0x00, 0x00, |
| 271 | 0x00), program) |
Yuyang Huang | 7affd67 | 2024-01-29 13:04:43 +0900 | [diff] [blame] | 272 | assertContentEquals(listOf( |
| 273 | "0: write 0x01", |
| 274 | "2: write 0x0102", |
| 275 | "5: write 0x01020304", |
| 276 | "10: write 0x00", |
| 277 | "12: write 0x80", |
| 278 | "14: write 0x0000", |
| 279 | "17: write 0x8000", |
| 280 | "20: write 0x00000000", |
| 281 | "25: write 0x80000000" |
Yuyang Huang | 15b4578 | 2024-01-18 07:19:11 +0900 | [diff] [blame] | 282 | ), |
Yuyang Huang | 7affd67 | 2024-01-29 13:04:43 +0900 | [diff] [blame] | 283 | ApfJniUtils.disassembleApf(program).map { it.trim() }) |
Yuyang Huang | e84a969 | 2024-01-01 11:49:49 +0900 | [diff] [blame] | 284 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 285 | gen = ApfV6Generator() |
Yuyang Huang | e84a969 | 2024-01-01 11:49:49 +0900 | [diff] [blame] | 286 | gen.addWriteU8(R0) |
| 287 | gen.addWriteU16(R0) |
| 288 | gen.addWriteU32(R0) |
| 289 | gen.addWriteU8(R1) |
| 290 | gen.addWriteU16(R1) |
| 291 | gen.addWriteU32(R1) |
| 292 | program = gen.generate() |
| 293 | assertContentEquals(byteArrayOf( |
| 294 | encodeInstruction(21, 1, 0), 38, |
| 295 | encodeInstruction(21, 1, 0), 39, |
| 296 | encodeInstruction(21, 1, 0), 40, |
| 297 | encodeInstruction(21, 1, 1), 38, |
| 298 | encodeInstruction(21, 1, 1), 39, |
| 299 | encodeInstruction(21, 1, 1), 40 |
| 300 | ), program) |
Yuyang Huang | f0b46cb | 2024-01-30 03:37:17 +0900 | [diff] [blame] | 301 | assertContentEquals(listOf( |
| 302 | "0: ewrite1 r0", |
| 303 | "2: ewrite2 r0", |
| 304 | "4: ewrite4 r0", |
| 305 | "6: ewrite1 r1", |
| 306 | "8: ewrite2 r1", |
| 307 | "10: ewrite4 r1"), ApfJniUtils.disassembleApf(program).map { it.trim() }) |
Yuyang Huang | 73c6d2d | 2023-10-19 13:32:37 +0900 | [diff] [blame] | 308 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 309 | gen = ApfV6Generator() |
Yuyang Huang | 293f7e7 | 2023-12-31 14:24:03 +0900 | [diff] [blame] | 310 | gen.addDataCopy(0, 10) |
| 311 | gen.addDataCopy(1, 5) |
| 312 | gen.addPacketCopy(1000, 255) |
| 313 | program = gen.generate() |
| 314 | assertContentEquals(byteArrayOf( |
| 315 | encodeInstruction(25, 0, 1), 10, |
| 316 | encodeInstruction(25, 1, 1), 1, 5, |
| 317 | encodeInstruction(25, 2, 0), |
| 318 | 0x03.toByte(), 0xe8.toByte(), 0xff.toByte(), |
| 319 | ), program) |
Yuyang Huang | e800398 | 2024-01-30 04:06:18 +0900 | [diff] [blame] | 320 | assertContentEquals(listOf( |
Yuyang Huang | b2a9334 | 2024-02-07 06:32:00 +0900 | [diff] [blame] | 321 | "0: datacopy src=0, len=10", |
| 322 | "2: datacopy src=1, len=5", |
| 323 | "5: pktcopy src=1000, len=255" |
Yuyang Huang | a699e54 | 2024-02-06 12:50:03 +0900 | [diff] [blame] | 324 | ), |
| 325 | ApfJniUtils.disassembleApf(program).map { it.trim() }) |
Yuyang Huang | 293f7e7 | 2023-12-31 14:24:03 +0900 | [diff] [blame] | 326 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 327 | gen = ApfV6Generator() |
Yuyang Huang | bed904a | 2024-01-30 11:22:49 +0900 | [diff] [blame] | 328 | gen.addDataCopyFromR0(5) |
Yuyang Huang | d039061 | 2024-01-01 16:21:16 +0900 | [diff] [blame] | 329 | gen.addPacketCopyFromR0(5) |
| 330 | gen.addDataCopyFromR0LenR1() |
Yuyang Huang | bed904a | 2024-01-30 11:22:49 +0900 | [diff] [blame] | 331 | gen.addPacketCopyFromR0LenR1() |
Yuyang Huang | d039061 | 2024-01-01 16:21:16 +0900 | [diff] [blame] | 332 | program = gen.generate() |
| 333 | assertContentEquals(byteArrayOf( |
Yuyang Huang | bed904a | 2024-01-30 11:22:49 +0900 | [diff] [blame] | 334 | encodeInstruction(21, 1, 1), 41, 5, |
Yuyang Huang | d039061 | 2024-01-01 16:21:16 +0900 | [diff] [blame] | 335 | encodeInstruction(21, 1, 0), 41, 5, |
| 336 | encodeInstruction(21, 1, 1), 42, |
Yuyang Huang | bed904a | 2024-01-30 11:22:49 +0900 | [diff] [blame] | 337 | encodeInstruction(21, 1, 0), 42, |
Yuyang Huang | d039061 | 2024-01-01 16:21:16 +0900 | [diff] [blame] | 338 | ), program) |
Yuyang Huang | bed904a | 2024-01-30 11:22:49 +0900 | [diff] [blame] | 339 | assertContentEquals(listOf( |
Yuyang Huang | a699e54 | 2024-02-06 12:50:03 +0900 | [diff] [blame] | 340 | "0: edatacopy src=r0, len=5", |
| 341 | "3: epktcopy src=r0, len=5", |
| 342 | "6: edatacopy src=r0, len=r1", |
| 343 | "8: epktcopy src=r0, len=r1"), ApfJniUtils.disassembleApf(program).map{ it.trim() }) |
Yuyang Huang | 0f49d0a | 2024-01-04 19:14:22 +0900 | [diff] [blame] | 344 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 345 | gen = ApfV6Generator() |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 346 | gen.addJumpIfBytesAtR0Equal(byteArrayOf('a'.code.toByte()), ApfV4Generator.DROP_LABEL) |
Yuyang Huang | 0f49d0a | 2024-01-04 19:14:22 +0900 | [diff] [blame] | 347 | program = gen.generate() |
| 348 | assertContentEquals( |
| 349 | byteArrayOf(encodeInstruction(opcode = 20, immLength = 1, register = 1), |
| 350 | 1, 1, 'a'.code.toByte()), program) |
Yuyang Huang | bffcf26 | 2024-02-04 07:52:48 +0900 | [diff] [blame] | 351 | assertContentEquals(listOf( |
Yuyang Huang | b61b734 | 2024-02-06 05:44:24 +0900 | [diff] [blame] | 352 | "0: jbseq r0, 0x1, DROP, 61"), |
Yuyang Huang | bffcf26 | 2024-02-04 07:52:48 +0900 | [diff] [blame] | 353 | ApfJniUtils.disassembleApf(program).map{ it.trim() }) |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 354 | |
| 355 | val qnames = byteArrayOf(1, 'A'.code.toByte(), 1, 'B'.code.toByte(), 0, 0) |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 356 | gen = ApfV6Generator() |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 357 | gen.addJumpIfPktAtR0DoesNotContainDnsQ(qnames, 0x0c, ApfV4Generator.DROP_LABEL) |
| 358 | gen.addJumpIfPktAtR0ContainDnsQ(qnames, 0x0c, ApfV4Generator.DROP_LABEL) |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 359 | program = gen.generate() |
| 360 | assertContentEquals(byteArrayOf( |
Yuyang Huang | 823351f | 2024-01-08 14:28:42 +0900 | [diff] [blame] | 361 | encodeInstruction(21, 1, 0), 43, 11, 0x0c.toByte(), |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 362 | ) + qnames + byteArrayOf( |
Yuyang Huang | 823351f | 2024-01-08 14:28:42 +0900 | [diff] [blame] | 363 | encodeInstruction(21, 1, 1), 43, 1, 0x0c.toByte(), |
Yuyang Huang | a01e0d7 | 2024-01-03 17:14:47 +0900 | [diff] [blame] | 364 | ) + qnames, program) |
Yuyang Huang | 49ab882 | 2024-02-04 09:39:00 +0900 | [diff] [blame] | 365 | assertContentEquals(listOf( |
Yuyang Huang | 1efe2fc | 2024-02-07 04:02:07 +0900 | [diff] [blame] | 366 | "0: jdnsqne r0, DROP, 12, (1)A(1)B(0)(0)", |
| 367 | "10: jdnsqeq r0, DROP, 12, (1)A(1)B(0)(0)"), |
Yuyang Huang | 49ab882 | 2024-02-04 09:39:00 +0900 | [diff] [blame] | 368 | ApfJniUtils.disassembleApf(program).map{ it.trim() }) |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 369 | |
Yuyang Huang | d89cdbe | 2024-02-01 09:49:07 +0900 | [diff] [blame] | 370 | gen = ApfV6Generator() |
Yuyang Huang | 365fc3a | 2024-02-14 21:47:37 +0900 | [diff] [blame] | 371 | gen.addJumpIfPktAtR0DoesNotContainDnsQSafe(qnames, 0x0c, ApfV4Generator.DROP_LABEL) |
| 372 | gen.addJumpIfPktAtR0ContainDnsQSafe(qnames, 0x0c, ApfV4Generator.DROP_LABEL) |
| 373 | program = gen.generate() |
| 374 | assertContentEquals(byteArrayOf( |
| 375 | encodeInstruction(21, 1, 0), 45, 11, 0x0c.toByte(), |
| 376 | ) + qnames + byteArrayOf( |
| 377 | encodeInstruction(21, 1, 1), 45, 1, 0x0c.toByte(), |
| 378 | ) + qnames, program) |
| 379 | assertContentEquals(listOf( |
| 380 | "0: jdnsqnesafe r0, DROP, 12, (1)A(1)B(0)(0)", |
| 381 | "10: jdnsqeqsafe r0, DROP, 12, (1)A(1)B(0)(0)"), |
| 382 | ApfJniUtils.disassembleApf(program).map{ it.trim() }) |
| 383 | |
| 384 | gen = ApfV6Generator() |
Yuyang Huang | af0d372 | 2024-01-12 13:38:44 +0900 | [diff] [blame] | 385 | gen.addJumpIfPktAtR0DoesNotContainDnsA(qnames, ApfV4Generator.DROP_LABEL) |
| 386 | gen.addJumpIfPktAtR0ContainDnsA(qnames, ApfV4Generator.DROP_LABEL) |
Yuyang Huang | dd2d0d9 | 2024-01-06 12:01:31 +0900 | [diff] [blame] | 387 | program = gen.generate() |
| 388 | assertContentEquals(byteArrayOf( |
| 389 | encodeInstruction(21, 1, 0), 44, 10, |
| 390 | ) + qnames + byteArrayOf( |
| 391 | encodeInstruction(21, 1, 1), 44, 1, |
| 392 | ) + qnames, program) |
Yuyang Huang | 1efe2fc | 2024-02-07 04:02:07 +0900 | [diff] [blame] | 393 | assertContentEquals(listOf( |
| 394 | "0: jdnsane r0, DROP, (1)A(1)B(0)(0)", |
| 395 | "9: jdnsaeq r0, DROP, (1)A(1)B(0)(0)"), |
| 396 | ApfJniUtils.disassembleApf(program).map{ it.trim() }) |
Yuyang Huang | 365fc3a | 2024-02-14 21:47:37 +0900 | [diff] [blame] | 397 | |
| 398 | gen = ApfV6Generator() |
| 399 | gen.addJumpIfPktAtR0DoesNotContainDnsASafe(qnames, ApfV4Generator.DROP_LABEL) |
| 400 | gen.addJumpIfPktAtR0ContainDnsASafe(qnames, ApfV4Generator.DROP_LABEL) |
| 401 | program = gen.generate() |
| 402 | assertContentEquals(byteArrayOf( |
| 403 | encodeInstruction(21, 1, 0), 46, 10, |
| 404 | ) + qnames + byteArrayOf( |
| 405 | encodeInstruction(21, 1, 1), 46, 1, |
| 406 | ) + qnames, program) |
| 407 | assertContentEquals(listOf( |
| 408 | "0: jdnsanesafe r0, DROP, (1)A(1)B(0)(0)", |
| 409 | "9: jdnsaeqsafe r0, DROP, (1)A(1)B(0)(0)"), |
| 410 | ApfJniUtils.disassembleApf(program).map{ it.trim() }) |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 411 | } |
| 412 | |
Yuyang Huang | 2fdba24 | 2024-02-06 14:52:22 +0900 | [diff] [blame] | 413 | @Test |
| 414 | fun testWriteToTxBuffer() { |
Yuyang Huang | bded8e3 | 2024-02-09 13:34:58 +0900 | [diff] [blame] | 415 | var program = ApfV6Generator() |
Yuyang Huang | 3fa07a7 | 2024-02-20 19:13:33 +0900 | [diff] [blame] | 416 | .addAllocate(14) |
Yuyang Huang | b97aa96 | 2024-02-08 08:13:56 +0900 | [diff] [blame] | 417 | .addWriteU8(0x01) |
Yuyang Huang | 3fa07a7 | 2024-02-20 19:13:33 +0900 | [diff] [blame] | 418 | .addWriteU16(0x0203) |
| 419 | .addWriteU32(0x04050607) |
Yuyang Huang | bded8e3 | 2024-02-09 13:34:58 +0900 | [diff] [blame] | 420 | .addLoadImmediate(R0, 1) |
| 421 | .addWriteU8(R0) |
| 422 | .addLoadImmediate(R0, 0x0203) |
| 423 | .addWriteU16(R0) |
| 424 | .addLoadImmediate(R1, 0x04050607) |
| 425 | .addWriteU32(R1) |
Yuyang Huang | fb80368 | 2024-02-20 17:52:27 +0900 | [diff] [blame] | 426 | .addTransmitWithoutChecksum() |
Yuyang Huang | bded8e3 | 2024-02-09 13:34:58 +0900 | [diff] [blame] | 427 | .generate() |
| 428 | assertPass(MIN_APF_VERSION_IN_DEV, program, ByteArray(MIN_PKT_SIZE)) |
Yuyang Huang | 3fa07a7 | 2024-02-20 19:13:33 +0900 | [diff] [blame] | 429 | assertContentEquals(byteArrayOf(0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x01, 0x02, 0x03, |
| 430 | 0x04, 0x05, 0x06, 0x07), ApfJniUtils.getTransmittedPacket()) |
Yuyang Huang | 2fdba24 | 2024-02-06 14:52:22 +0900 | [diff] [blame] | 431 | } |
| 432 | |
Yuyang Huang | 2283be7 | 2024-02-08 04:49:08 +0900 | [diff] [blame] | 433 | @Test |
| 434 | fun testCopyToTxBuffer() { |
Yuyang Huang | 1059893 | 2024-02-14 10:00:59 +0900 | [diff] [blame] | 435 | var program = ApfV6Generator() |
Yuyang Huang | 2283be7 | 2024-02-08 04:49:08 +0900 | [diff] [blame] | 436 | .addData(byteArrayOf(33, 34, 35)) |
Yuyang Huang | 3fa07a7 | 2024-02-20 19:13:33 +0900 | [diff] [blame] | 437 | .addAllocate(14) |
| 438 | .addDataCopy(2 /* src */, 2 /* len */) |
| 439 | .addDataCopy(4 /* src */, 1 /* len */) |
| 440 | .addPacketCopy(0 /* src */, 1 /* len */) |
| 441 | .addPacketCopy(1 /* src */, 3 /* len */) |
| 442 | .addLoadImmediate(R0, 2) // data copy offset |
| 443 | .addDataCopyFromR0(2 /* len */) |
| 444 | .addLoadImmediate(R0, 4) // data copy offset |
| 445 | .addLoadImmediate(R1, 1) // len |
| 446 | .addDataCopyFromR0LenR1() |
| 447 | .addLoadImmediate(R0, 0) // packet copy offset |
| 448 | .addPacketCopyFromR0(1 /* len */) |
| 449 | .addLoadImmediate(R0, 1) // packet copy offset |
| 450 | .addLoadImmediate(R1, 3) // len |
| 451 | .addPacketCopyFromR0LenR1() |
Yuyang Huang | fb80368 | 2024-02-20 17:52:27 +0900 | [diff] [blame] | 452 | .addTransmitWithoutChecksum() |
Yuyang Huang | 2283be7 | 2024-02-08 04:49:08 +0900 | [diff] [blame] | 453 | .generate() |
| 454 | assertPass(MIN_APF_VERSION_IN_DEV, program, testPacket) |
Yuyang Huang | 3fa07a7 | 2024-02-20 19:13:33 +0900 | [diff] [blame] | 455 | assertContentEquals(byteArrayOf(33, 34, 35, 1, 2, 3, 4, 33, 34, 35, 1, 2, 3, 4), |
| 456 | ApfJniUtils.getTransmittedPacket()) |
Yuyang Huang | 2283be7 | 2024-02-08 04:49:08 +0900 | [diff] [blame] | 457 | } |
| 458 | |
Yuyang Huang | c11962e | 2024-02-14 20:37:06 +0900 | [diff] [blame] | 459 | @Test |
| 460 | fun testPassDrop() { |
| 461 | var program = ApfV6Generator() |
| 462 | .addDrop() |
| 463 | .addPass() |
| 464 | .generate() |
| 465 | assertDrop(MIN_APF_VERSION_IN_DEV, program, testPacket) |
| 466 | |
| 467 | var dataRegion = ByteArray(Counter.totalSize()) { 0 } |
| 468 | program = ApfV6Generator() |
| 469 | .addData(byteArrayOf()) |
| 470 | .addCountAndDrop(Counter.DROPPED_ETH_BROADCAST.value()) |
| 471 | .generate() |
| 472 | assertVerdict(MIN_APF_VERSION_IN_DEV, DROP, program, testPacket, dataRegion) |
| 473 | var counterMap = decodeCountersIntoMap(dataRegion) |
| 474 | assertEquals(mapOf<Counter, Long>( |
| 475 | Counter.TOTAL_PACKETS to 1, |
| 476 | Counter.DROPPED_ETH_BROADCAST to 1), counterMap) |
| 477 | |
| 478 | dataRegion = ByteArray(Counter.totalSize()) { 0 } |
| 479 | program = ApfV6Generator() |
| 480 | .addData(byteArrayOf()) |
| 481 | .addCountAndPass(Counter.PASSED_ARP.value()) |
| 482 | .generate() |
| 483 | assertVerdict(MIN_APF_VERSION_IN_DEV, PASS, program, testPacket, dataRegion) |
| 484 | counterMap = decodeCountersIntoMap(dataRegion) |
| 485 | assertEquals(mapOf<Counter, Long>( |
| 486 | Counter.TOTAL_PACKETS to 1, |
| 487 | Counter.PASSED_ARP to 1), counterMap) |
| 488 | } |
| 489 | |
Yuyang Huang | 0e3b4cb | 2024-02-19 16:20:26 +0900 | [diff] [blame] | 490 | @Test |
| 491 | fun testAllocateFailure() { |
| 492 | val program = ApfV6Generator() |
| 493 | .addData(byteArrayOf()) |
| 494 | // allocate size: 65535 > sizeof(apf_test_buffer): 1514, trigger allocate failure. |
| 495 | .addAllocate(65535) |
| 496 | .addDrop() |
| 497 | .generate() |
| 498 | val dataRegion = ByteArray(Counter.totalSize()) { 0 } |
| 499 | assertVerdict(MIN_APF_VERSION_IN_DEV, PASS, program, testPacket, dataRegion) |
| 500 | val counterMap = decodeCountersIntoMap(dataRegion) |
| 501 | assertEquals(mapOf<Counter, Long>( |
| 502 | Counter.TOTAL_PACKETS to 1, |
| 503 | Counter.PASSED_ALLOCATE_FAILURE to 1), counterMap) |
| 504 | } |
| 505 | |
Yuyang Huang | 19df048 | 2024-02-19 16:38:45 +0900 | [diff] [blame] | 506 | @Test |
| 507 | fun testTransmitFailure() { |
| 508 | val program = ApfV6Generator() |
| 509 | .addData(byteArrayOf()) |
| 510 | .addAllocate(14) |
| 511 | // len: 13 is less than ETH_HLEN, trigger transmit failure. |
| 512 | .addLoadImmediate(R0, 13) |
| 513 | .addStoreToMemory(R0, 10) |
| 514 | .addTransmitWithoutChecksum() |
| 515 | .addDrop() |
| 516 | .generate() |
| 517 | val dataRegion = ByteArray(Counter.totalSize()) { 0 } |
| 518 | assertVerdict(MIN_APF_VERSION_IN_DEV, PASS, program, testPacket, dataRegion) |
| 519 | val counterMap = decodeCountersIntoMap(dataRegion) |
| 520 | assertEquals(mapOf<Counter, Long>( |
| 521 | Counter.TOTAL_PACKETS to 1, |
| 522 | Counter.PASSED_TRANSMIT_FAILURE to 1), counterMap) |
| 523 | } |
| 524 | |
Yuyang Huang | bcfa09b | 2024-02-20 11:20:47 +0900 | [diff] [blame^] | 525 | @Test |
| 526 | fun testTransmitL4() { |
| 527 | val etherIpv4UdpPacket = intArrayOf( |
| 528 | 0x01, 0x00, 0x5e, 0x00, 0x00, 0xfb, |
| 529 | 0x38, 0xca, 0x84, 0xb7, 0x7f, 0x16, |
| 530 | 0x08, 0x00, // end of ethernet header |
| 531 | 0x45, |
| 532 | 0x04, |
| 533 | 0x00, 0x3f, |
| 534 | 0x43, 0xcd, |
| 535 | 0x40, 0x00, |
| 536 | 0xff, |
| 537 | 0x11, |
| 538 | 0x00, 0x00, // ipv4 checksum set to 0 |
| 539 | 0xc0, 0xa8, 0x01, 0x03, |
| 540 | 0xe0, 0x00, 0x00, 0xfb, // end of ipv4 header |
| 541 | 0x14, 0xe9, |
| 542 | 0x14, 0xe9, |
| 543 | 0x00, 0x2b, |
| 544 | 0x00, 0x2b, // end of udp header. udp checksum set to udp (header + payload) size |
| 545 | 0x00, 0x00, 0x84, 0x00, 0x00, 0x00, |
| 546 | 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x62, 0x05, 0x6c, 0x6f, 0x63, 0x61, 0x6c, |
| 547 | 0x00, 0x00, 0x01, 0x80, 0x01, 0x00, 0x00, 0x00, 0x78, 0x00, 0x04, 0xc0, 0xa8, 0x01, |
| 548 | 0x09, |
| 549 | ).map { it.toByte() }.toByteArray() |
| 550 | val program = ApfV6Generator() |
| 551 | .addData(etherIpv4UdpPacket) |
| 552 | .addAllocate(etherIpv4UdpPacket.size) |
| 553 | .addDataCopy(2 /* src */, etherIpv4UdpPacket.size /* len */) |
| 554 | .addTransmitL4(ETH_HLEN /* ipOfs */, |
| 555 | ETH_HLEN + IPV4_HLEN + 6 /* csumOfs */, |
| 556 | ETH_HLEN + IPV4_HLEN - 8 /* csumStart */, |
| 557 | IPPROTO_UDP /* partialCsum */, |
| 558 | true /* isUdp */) |
| 559 | .generate() |
| 560 | assertPass(MIN_APF_VERSION_IN_DEV, program, testPacket) |
| 561 | val txBuf = ByteBuffer.wrap(ApfJniUtils.getTransmittedPacket()) |
| 562 | Struct.parse(EthernetHeader::class.java, txBuf) |
| 563 | val ipv4Hdr = Struct.parse(Ipv4Header::class.java, txBuf) |
| 564 | val udpHdr = Struct.parse(UdpHeader::class.java, txBuf) |
| 565 | assertEquals(0x9535.toShort(), ipv4Hdr.checksum) |
| 566 | assertEquals(0xa73d.toShort(), udpHdr.checksum) |
| 567 | } |
| 568 | |
Yuyang Huang | c11962e | 2024-02-14 20:37:06 +0900 | [diff] [blame] | 569 | private fun decodeCountersIntoMap(counterBytes: ByteArray): Map<Counter, Long> { |
| 570 | val counters = Counter::class.java.enumConstants |
| 571 | val ret = HashMap<Counter, Long>() |
| 572 | // starting from index 2 to skip the endianness mark |
| 573 | for (c in listOf(*counters).subList(2, counters.size)) { |
| 574 | val value = ApfCounterTracker.getCounterValue(counterBytes, c) |
| 575 | if (value != 0L) { |
| 576 | ret[c] = value |
| 577 | } |
| 578 | } |
| 579 | return ret |
| 580 | } |
| 581 | |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 582 | private fun encodeInstruction(opcode: Int, immLength: Int, register: Int): Byte { |
Yuyang Huang | 73c6d2d | 2023-10-19 13:32:37 +0900 | [diff] [blame] | 583 | val immLengthEncoding = if (immLength == 4) 3 else immLength |
| 584 | return opcode.shl(3).or(immLengthEncoding.shl(1)).or(register).toByte() |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 585 | } |
Yuyang Huang | bcfa09b | 2024-02-20 11:20:47 +0900 | [diff] [blame^] | 586 | |
| 587 | companion object { |
| 588 | const val ETH_HLEN = 14 |
| 589 | const val IPV4_HLEN = 20 |
| 590 | const val IPPROTO_UDP = 17 |
| 591 | } |
Yuyang Huang | ae57be0 | 2023-10-16 17:49:31 +0900 | [diff] [blame] | 592 | } |