| Jakub Grajciar | b1be2a0 | 2018-09-19 13:36:16 +0200 | [diff] [blame^] | 1 | import unittest |
| 2 | |
| 3 | from scapy.layers.l2 import Ether |
| 4 | from scapy.layers.inet import IP, ICMP |
| 5 | |
| 6 | from framework import VppTestCase, VppTestRunner, running_extended_tests |
| 7 | from remote_test import RemoteClass, RemoteVppTestCase |
| 8 | from vpp_memif import * |
| 9 | |
| 10 | |
| 11 | class TestMemif(VppTestCase): |
| 12 | """ Memif Test Case """ |
| 13 | |
| 14 | @classmethod |
| 15 | def setUpClass(cls): |
| 16 | # fork new process before client connects to VPP |
| 17 | cls.remote_test = RemoteClass(RemoteVppTestCase) |
| 18 | cls.remote_test.start_remote() |
| 19 | cls.remote_test.set_request_timeout(10) |
| 20 | super(TestMemif, cls).setUpClass() |
| 21 | cls.remote_test.setUpClass(cls.tempdir) |
| 22 | cls.create_pg_interfaces(range(1)) |
| 23 | for pg in cls.pg_interfaces: |
| 24 | pg.config_ip4() |
| 25 | pg.admin_up() |
| 26 | pg.resolve_arp() |
| 27 | |
| 28 | @classmethod |
| 29 | def tearDownClass(cls): |
| 30 | cls.remote_test.tearDownClass() |
| 31 | cls.remote_test.quit_remote() |
| 32 | for pg in cls.pg_interfaces: |
| 33 | pg.unconfig_ip4() |
| 34 | pg.set_table_ip4(0) |
| 35 | pg.admin_down() |
| 36 | super(TestMemif, cls).tearDownClass() |
| 37 | |
| 38 | def tearDown(self): |
| 39 | remove_all_memif_vpp_config(self) |
| 40 | remove_all_memif_vpp_config(self.remote_test) |
| 41 | super(TestMemif, self).tearDown() |
| 42 | |
| 43 | def _check_socket_filename(self, dump, socket_id, filename): |
| 44 | for d in dump: |
| 45 | if (d.socket_id == socket_id) and ( |
| 46 | d.socket_filename.rstrip("\0") == filename): |
| 47 | return True |
| 48 | return False |
| 49 | |
| 50 | def test_memif_socket_filename_add_del(self): |
| 51 | """ Memif socket filenale add/del """ |
| 52 | |
| 53 | # dump default socket filename |
| 54 | dump = self.vapi.memif_socket_filename_dump() |
| 55 | self.assertTrue( |
| 56 | self._check_socket_filename( |
| 57 | dump, 0, "/run/vpp/memif.sock")) |
| 58 | |
| 59 | memif_sockets = [] |
| 60 | # existing path |
| 61 | memif_sockets.append( |
| 62 | VppSocketFilename( |
| 63 | self, 1, "/run/vpp/memif1.sock")) |
| 64 | # default path ("/run/vpp") |
| 65 | memif_sockets.append( |
| 66 | VppSocketFilename( |
| 67 | self, |
| 68 | 2, |
| 69 | "memif2.sock", |
| 70 | add_default_folder=True)) |
| 71 | # create new folder in default folder |
| 72 | memif_sockets.append( |
| 73 | VppSocketFilename( |
| 74 | self, |
| 75 | 3, |
| 76 | "sock/memif3.sock", |
| 77 | add_default_folder=True)) |
| 78 | |
| 79 | for sock in memif_sockets: |
| 80 | sock.add_vpp_config() |
| 81 | dump = sock.query_vpp_config() |
| 82 | self.assertTrue( |
| 83 | self._check_socket_filename( |
| 84 | dump, |
| 85 | sock.socket_id, |
| 86 | sock.socket_filename)) |
| 87 | |
| 88 | for sock in memif_sockets: |
| 89 | sock.remove_vpp_config() |
| 90 | |
| 91 | dump = self.vapi.memif_socket_filename_dump() |
| 92 | self.assertTrue( |
| 93 | self._check_socket_filename( |
| 94 | dump, 0, "/run/vpp/memif.sock")) |
| 95 | |
| 96 | def _create_delete_test_one_interface(self, memif): |
| 97 | memif.add_vpp_config() |
| 98 | |
| 99 | dump = memif.query_vpp_config() |
| 100 | |
| 101 | self.assertTrue(dump) |
| 102 | self.assertEqual(dump.sw_if_index, memif.sw_if_index) |
| 103 | self.assertEqual(dump.role, memif.role) |
| 104 | self.assertEqual(dump.mode, memif.mode) |
| 105 | if (memif.socket_id is not None): |
| 106 | self.assertEqual(dump.socket_id, memif.socket_id) |
| 107 | |
| 108 | memif.remove_vpp_config() |
| 109 | |
| 110 | dump = memif.query_vpp_config() |
| 111 | |
| 112 | self.assertFalse(dump) |
| 113 | |
| 114 | def _connect_test_one_interface(self, memif): |
| 115 | self.assertTrue(memif.wait_for_link_up(5)) |
| 116 | dump = memif.query_vpp_config() |
| 117 | |
| 118 | if memif.role == MEMIF_ROLE.SLAVE: |
| 119 | self.assertEqual(dump.ring_size, memif.ring_size) |
| 120 | self.assertEqual(dump.buffer_size, memif.buffer_size) |
| 121 | else: |
| 122 | self.assertEqual(dump.ring_size, 1) |
| 123 | self.assertEqual(dump.buffer_size, 0) |
| 124 | |
| 125 | def _connect_test_interface_pair(self, memif0, memif1): |
| 126 | memif0.add_vpp_config() |
| 127 | memif1.add_vpp_config() |
| 128 | |
| 129 | memif0.admin_up() |
| 130 | memif1.admin_up() |
| 131 | |
| 132 | self._connect_test_one_interface(memif0) |
| 133 | self._connect_test_one_interface(memif1) |
| 134 | |
| 135 | memif0.remove_vpp_config() |
| 136 | memif1.remove_vpp_config() |
| 137 | |
| 138 | def test_memif_create_delete(self): |
| 139 | """ Memif create/delete interface """ |
| 140 | |
| 141 | memif = VppMemif(self, MEMIF_ROLE.SLAVE, MEMIF_MODE.ETHERNET) |
| 142 | self._create_delete_test_one_interface(memif) |
| 143 | memif.role = MEMIF_ROLE.MASTER |
| 144 | self._create_delete_test_one_interface(memif) |
| 145 | |
| 146 | def test_memif_create_custom_socket(self): |
| 147 | """ Memif create with non-default socket filname """ |
| 148 | |
| 149 | memif_sockets = [] |
| 150 | # existing path |
| 151 | memif_sockets.append( |
| 152 | VppSocketFilename( |
| 153 | self, 1, "/run/vpp/memif1.sock")) |
| 154 | # default path ("/run/vpp") |
| 155 | memif_sockets.append( |
| 156 | VppSocketFilename( |
| 157 | self, |
| 158 | 2, |
| 159 | "memif2.sock", |
| 160 | add_default_folder=True)) |
| 161 | # create new folder in default folder |
| 162 | memif_sockets.append( |
| 163 | VppSocketFilename( |
| 164 | self, |
| 165 | 3, |
| 166 | "sock/memif3.sock", |
| 167 | add_default_folder=True)) |
| 168 | |
| 169 | memif = VppMemif(self, MEMIF_ROLE.SLAVE, MEMIF_MODE.ETHERNET) |
| 170 | |
| 171 | for sock in memif_sockets: |
| 172 | sock.add_vpp_config() |
| 173 | memif.socket_id = sock.socket_id |
| 174 | memif.role = MEMIF_ROLE.SLAVE |
| 175 | self._create_delete_test_one_interface(memif) |
| 176 | memif.role = MEMIF_ROLE.MASTER |
| 177 | self._create_delete_test_one_interface(memif) |
| 178 | |
| 179 | def test_memif_connect(self): |
| 180 | """ Memif connect """ |
| 181 | memif = VppMemif( |
| 182 | self, |
| 183 | MEMIF_ROLE.SLAVE, |
| 184 | MEMIF_MODE.ETHERNET, |
| 185 | ring_size=1024, |
| 186 | buffer_size=2048) |
| 187 | remote_memif = VppMemif( |
| 188 | self.remote_test, |
| 189 | MEMIF_ROLE.MASTER, |
| 190 | MEMIF_MODE.ETHERNET, |
| 191 | ring_size=1024, |
| 192 | buffer_size=2048) |
| 193 | |
| 194 | self._connect_test_interface_pair(memif, remote_memif) |
| 195 | |
| 196 | memif.role = MEMIF_ROLE.MASTER |
| 197 | remote_memif.role = MEMIF_ROLE.SLAVE |
| 198 | |
| 199 | self._connect_test_interface_pair(memif, remote_memif) |
| 200 | |
| 201 | def _create_icmp(self, pg, memif, num): |
| 202 | pkts = [] |
| 203 | for i in range(num): |
| 204 | pkt = (Ether(dst=pg.local_mac, src=pg.remote_mac) / |
| 205 | IP(src=pg.remote_ip4, dst=memif.ip4_addr) / |
| 206 | ICMP(id=memif.if_id, type='echo-request', seq=i)) |
| 207 | pkts.append(pkt) |
| 208 | return pkts |
| 209 | |
| 210 | def _verify_icmp(self, pg, memif, rx, seq): |
| 211 | ip = rx[IP] |
| 212 | self.assertEqual(ip.src, memif.ip4_addr) |
| 213 | self.assertEqual(ip.dst, pg.remote_ip4) |
| 214 | self.assertEqual(ip.proto, 1) |
| 215 | icmp = rx[ICMP] |
| 216 | self.assertEqual(icmp.type, 0) # echo-reply |
| 217 | self.assertEqual(icmp.id, memif.if_id) |
| 218 | self.assertEqual(icmp.seq, seq) |
| 219 | |
| 220 | def test_memif_ping(self): |
| 221 | """ Memif ping """ |
| 222 | memif = VppMemif(self, MEMIF_ROLE.MASTER, MEMIF_MODE.ETHERNET) |
| 223 | remote_memif = VppMemif(self.remote_test, MEMIF_ROLE.SLAVE, |
| 224 | MEMIF_MODE.ETHERNET) |
| 225 | |
| 226 | memif.add_vpp_config() |
| 227 | memif.config_ip4() |
| 228 | memif.admin_up() |
| 229 | |
| 230 | remote_memif.add_vpp_config() |
| 231 | remote_memif.config_ip4() |
| 232 | remote_memif.admin_up() |
| 233 | |
| 234 | self.assertTrue(memif.wait_for_link_up(5)) |
| 235 | self.assertTrue(remote_memif.wait_for_link_up(5)) |
| 236 | |
| 237 | # add routing to remote vpp |
| 238 | dst_addr = socket.inet_pton(socket.AF_INET, self.pg0._local_ip4_subnet) |
| 239 | dst_addr_len = 24 |
| 240 | next_hop_addr = socket.inet_pton(socket.AF_INET, memif.ip4_addr) |
| 241 | self.remote_test.vapi.ip_add_del_route( |
| 242 | dst_addr, dst_addr_len, next_hop_addr) |
| 243 | |
| 244 | # create ICMP echo-request from local pg to remote memif |
| 245 | packet_num = 10 |
| 246 | pkts = self._create_icmp(self.pg0, remote_memif, packet_num) |
| 247 | |
| 248 | self.pg0.add_stream(pkts) |
| 249 | self.pg_enable_capture(self.pg_interfaces) |
| 250 | self.pg_start() |
| 251 | capture = self.pg0.get_capture(packet_num, timeout=2) |
| 252 | seq = 0 |
| 253 | for c in capture: |
| 254 | self._verify_icmp(self.pg0, remote_memif, c, seq) |
| 255 | seq += 1 |
| 256 | |
| 257 | |
| 258 | if __name__ == '__main__': |
| 259 | unittest.main(testRunner=VppTestRunner) |