| import socket |
| import unittest |
| |
| from scapy.layers.l2 import Ether |
| from scapy.layers.inet import IP, ICMP |
| |
| from framework import VppTestCase, VppTestRunner, running_extended_tests |
| from remote_test import RemoteClass, RemoteVppTestCase |
| from vpp_memif import MEMIF_MODE, MEMIF_ROLE, remove_all_memif_vpp_config, \ |
| VppSocketFilename, VppMemif |
| |
| |
| class TestMemif(VppTestCase): |
| """ Memif Test Case """ |
| |
| @classmethod |
| def setUpClass(cls): |
| # fork new process before client connects to VPP |
| cls.remote_test = RemoteClass(RemoteVppTestCase) |
| cls.remote_test.start_remote() |
| cls.remote_test.set_request_timeout(10) |
| super(TestMemif, cls).setUpClass() |
| cls.remote_test.setUpClass(cls.tempdir) |
| cls.create_pg_interfaces(range(1)) |
| for pg in cls.pg_interfaces: |
| pg.config_ip4() |
| pg.admin_up() |
| pg.resolve_arp() |
| |
| @classmethod |
| def tearDownClass(cls): |
| cls.remote_test.tearDownClass() |
| cls.remote_test.quit_remote() |
| for pg in cls.pg_interfaces: |
| pg.unconfig_ip4() |
| pg.set_table_ip4(0) |
| pg.admin_down() |
| super(TestMemif, cls).tearDownClass() |
| |
| def tearDown(self): |
| remove_all_memif_vpp_config(self) |
| remove_all_memif_vpp_config(self.remote_test) |
| super(TestMemif, self).tearDown() |
| |
| def _check_socket_filename(self, dump, socket_id, filename): |
| for d in dump: |
| if (d.socket_id == socket_id) and ( |
| d.socket_filename.rstrip("\0") == filename): |
| return True |
| return False |
| |
| def test_memif_socket_filename_add_del(self): |
| """ Memif socket filenale add/del """ |
| |
| # dump default socket filename |
| dump = self.vapi.memif_socket_filename_dump() |
| self.assertTrue( |
| self._check_socket_filename( |
| dump, 0, self.tempdir + "/memif.sock")) |
| |
| memif_sockets = [] |
| # existing path |
| memif_sockets.append( |
| VppSocketFilename( |
| self, 1, self.tempdir + "/memif1.sock")) |
| # default path (test tempdir) |
| memif_sockets.append( |
| VppSocketFilename( |
| self, |
| 2, |
| "memif2.sock", |
| add_default_folder=True)) |
| # create new folder in default folder |
| memif_sockets.append( |
| VppSocketFilename( |
| self, |
| 3, |
| "sock/memif3.sock", |
| add_default_folder=True)) |
| |
| for sock in memif_sockets: |
| sock.add_vpp_config() |
| dump = sock.query_vpp_config() |
| self.assertTrue( |
| self._check_socket_filename( |
| dump, |
| sock.socket_id, |
| sock.socket_filename)) |
| |
| for sock in memif_sockets: |
| sock.remove_vpp_config() |
| |
| dump = self.vapi.memif_socket_filename_dump() |
| self.assertTrue( |
| self._check_socket_filename( |
| dump, 0, self.tempdir + "/memif.sock")) |
| |
| def _create_delete_test_one_interface(self, memif): |
| memif.add_vpp_config() |
| |
| dump = memif.query_vpp_config() |
| |
| self.assertTrue(dump) |
| self.assertEqual(dump.sw_if_index, memif.sw_if_index) |
| self.assertEqual(dump.role, memif.role) |
| self.assertEqual(dump.mode, memif.mode) |
| if (memif.socket_id is not None): |
| self.assertEqual(dump.socket_id, memif.socket_id) |
| |
| memif.remove_vpp_config() |
| |
| dump = memif.query_vpp_config() |
| |
| self.assertFalse(dump) |
| |
| def _connect_test_one_interface(self, memif): |
| self.assertTrue(memif.wait_for_link_up(5)) |
| dump = memif.query_vpp_config() |
| |
| if memif.role == MEMIF_ROLE.SLAVE: |
| self.assertEqual(dump.ring_size, memif.ring_size) |
| self.assertEqual(dump.buffer_size, memif.buffer_size) |
| else: |
| self.assertEqual(dump.ring_size, 1) |
| self.assertEqual(dump.buffer_size, 0) |
| |
| def _connect_test_interface_pair(self, memif0, memif1): |
| memif0.add_vpp_config() |
| memif1.add_vpp_config() |
| |
| memif0.admin_up() |
| memif1.admin_up() |
| |
| self._connect_test_one_interface(memif0) |
| self._connect_test_one_interface(memif1) |
| |
| memif0.remove_vpp_config() |
| memif1.remove_vpp_config() |
| |
| def test_memif_create_delete(self): |
| """ Memif create/delete interface """ |
| |
| memif = VppMemif(self, MEMIF_ROLE.SLAVE, MEMIF_MODE.ETHERNET) |
| self._create_delete_test_one_interface(memif) |
| memif.role = MEMIF_ROLE.MASTER |
| self._create_delete_test_one_interface(memif) |
| |
| def test_memif_create_custom_socket(self): |
| """ Memif create with non-default socket filname """ |
| |
| memif_sockets = [] |
| # existing path |
| memif_sockets.append( |
| VppSocketFilename( |
| self, 1, self.tempdir + "/memif1.sock")) |
| # default path (test tempdir) |
| memif_sockets.append( |
| VppSocketFilename( |
| self, |
| 2, |
| "memif2.sock", |
| add_default_folder=True)) |
| # create new folder in default folder |
| memif_sockets.append( |
| VppSocketFilename( |
| self, |
| 3, |
| "sock/memif3.sock", |
| add_default_folder=True)) |
| |
| memif = VppMemif(self, MEMIF_ROLE.SLAVE, MEMIF_MODE.ETHERNET) |
| |
| for sock in memif_sockets: |
| sock.add_vpp_config() |
| memif.socket_id = sock.socket_id |
| memif.role = MEMIF_ROLE.SLAVE |
| self._create_delete_test_one_interface(memif) |
| memif.role = MEMIF_ROLE.MASTER |
| self._create_delete_test_one_interface(memif) |
| |
| def test_memif_connect(self): |
| """ Memif connect """ |
| memif = VppMemif(self, MEMIF_ROLE.SLAVE, MEMIF_MODE.ETHERNET, |
| ring_size=1024, buffer_size=2048) |
| |
| remote_socket = VppSocketFilename(self.remote_test, 1, |
| self.tempdir + "/memif.sock") |
| remote_socket.add_vpp_config() |
| |
| remote_memif = VppMemif(self.remote_test, MEMIF_ROLE.MASTER, |
| MEMIF_MODE.ETHERNET, socket_id=1, |
| ring_size=1024, buffer_size=2048) |
| |
| self._connect_test_interface_pair(memif, remote_memif) |
| |
| memif.role = MEMIF_ROLE.MASTER |
| remote_memif.role = MEMIF_ROLE.SLAVE |
| |
| self._connect_test_interface_pair(memif, remote_memif) |
| |
| def _create_icmp(self, pg, memif, num): |
| pkts = [] |
| for i in range(num): |
| pkt = (Ether(dst=pg.local_mac, src=pg.remote_mac) / |
| IP(src=pg.remote_ip4, dst=memif.ip4_addr) / |
| ICMP(id=memif.if_id, type='echo-request', seq=i)) |
| pkts.append(pkt) |
| return pkts |
| |
| def _verify_icmp(self, pg, memif, rx, seq): |
| ip = rx[IP] |
| self.assertEqual(ip.src, memif.ip4_addr) |
| self.assertEqual(ip.dst, pg.remote_ip4) |
| self.assertEqual(ip.proto, 1) |
| icmp = rx[ICMP] |
| self.assertEqual(icmp.type, 0) # echo-reply |
| self.assertEqual(icmp.id, memif.if_id) |
| self.assertEqual(icmp.seq, seq) |
| |
| def test_memif_ping(self): |
| """ Memif ping """ |
| memif = VppMemif(self, MEMIF_ROLE.SLAVE, MEMIF_MODE.ETHERNET) |
| |
| remote_socket = VppSocketFilename(self.remote_test, 1, |
| self.tempdir + "/memif.sock") |
| remote_socket.add_vpp_config() |
| |
| remote_memif = VppMemif(self.remote_test, MEMIF_ROLE.MASTER, |
| MEMIF_MODE.ETHERNET, socket_id=1) |
| |
| memif.add_vpp_config() |
| memif.config_ip4() |
| memif.admin_up() |
| |
| remote_memif.add_vpp_config() |
| remote_memif.config_ip4() |
| remote_memif.admin_up() |
| |
| self.assertTrue(memif.wait_for_link_up(5)) |
| self.assertTrue(remote_memif.wait_for_link_up(5)) |
| |
| # add routing to remote vpp |
| dst_addr = socket.inet_pton(socket.AF_INET, self.pg0._local_ip4_subnet) |
| dst_addr_len = 24 |
| next_hop_addr = socket.inet_pton(socket.AF_INET, memif.ip4_addr) |
| self.remote_test.vapi.ip_add_del_route( |
| dst_addr, dst_addr_len, next_hop_addr) |
| |
| # create ICMP echo-request from local pg to remote memif |
| packet_num = 10 |
| pkts = self._create_icmp(self.pg0, remote_memif, packet_num) |
| |
| self.pg0.add_stream(pkts) |
| self.pg_enable_capture(self.pg_interfaces) |
| self.pg_start() |
| capture = self.pg0.get_capture(packet_num, timeout=2) |
| seq = 0 |
| for c in capture: |
| self._verify_icmp(self.pg0, remote_memif, c, seq) |
| seq += 1 |
| |
| |
| if __name__ == '__main__': |
| unittest.main(testRunner=VppTestRunner) |