/* *------------------------------------------------------------------ * Copyright (c) 2016 Cisco and/or its affiliates. * 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. *------------------------------------------------------------------ */ #include <stdint.h> #include <net/if.h> #include <sys/ioctl.h> #include <inttypes.h> #include <vlib/vlib.h> #include <vlib/unix/unix.h> #include <vnet/ethernet/ethernet.h> #include <vnet/ip/ip4_packet.h> #include <vnet/ip/ip6_packet.h> #include <vnet/ip/format.h> #include <linux/virtio_net.h> #include <linux/vhost.h> #include <vnet/devices/virtio/virtio.h> #include <vnet/devices/tap/tap.h> static clib_error_t * tap_create_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; tap_create_if_args_t args = { 0 }; int ip_addr_set = 0; args.id = ~0; args.tap_flags = 0; /* Get a line of input. */ if (unformat_user (input, unformat_line_input, line_input)) { while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "id %u", &args.id)) ; else if (unformat (line_input, "host-if-name %s", &args.host_if_name)) ; else if (unformat (line_input, "host-ns %s", &args.host_namespace)) ; else if (unformat (line_input, "host-mac-addr %U", unformat_ethernet_address, args.host_mac_addr)) ; else if (unformat (line_input, "host-bridge %s", &args.host_bridge)) ; else if (unformat (line_input, "host-ip4-addr %U/%d", unformat_ip4_address, &args.host_ip4_addr, &args.host_ip4_prefix_len)) ip_addr_set = 1; else if (unformat (line_input, "host-ip4-gw %U", unformat_ip4_address, &args.host_ip4_gw)) args.host_ip4_gw_set = 1; else if (unformat (line_input, "host-ip6-addr %U/%d", unformat_ip6_address, &args.host_ip6_addr, &args.host_ip6_prefix_len)) ip_addr_set = 1; else if (unformat (line_input, "host-ip6-gw %U", unformat_ip6_address, &args.host_ip6_gw)) args.host_ip6_gw_set = 1; else if (unformat (line_input, "rx-ring-size %d", &args.rx_ring_sz)) ; else if (unformat (line_input, "tx-ring-size %d", &args.tx_ring_sz)) ; else if (unformat (line_input, "no-gso")) args.tap_flags &= ~TAP_FLAG_GSO; else if (unformat (line_input, "gso")) args.tap_flags |= TAP_FLAG_GSO; else if (unformat (line_input, "hw-addr %U", unformat_ethernet_address, args.mac_addr)) args.mac_addr_set = 1; else { unformat_free (line_input); return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); } } unformat_free (line_input); } if (ip_addr_set && args.host_bridge) return clib_error_return (0, "Please specify either host ip address or " "host bridge"); tap_create_if (vm, &args); vec_free (args.host_if_name); vec_free (args.host_namespace); vec_free (args.host_bridge); return args.error; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (tap_create_command, static) = { .path = "create tap", .short_help = "create tap {id <if-id>} [hw-addr <mac-address>] " "[rx-ring-size <size>] [tx-ring-size <size>] [host-ns <netns>] " "[host-bridge <bridge-name>] [host-ip4-addr <ip4addr/mask>] " "[host-ip6-addr <ip6-addr>] [host-ip4-gw <ip4-addr>] " "[host-ip6-gw <ip6-addr>] [host-if-name <name>] [no-gso|gso]", .function = tap_create_command_fn, }; /* *INDENT-ON* */ static clib_error_t * tap_delete_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; u32 sw_if_index = ~0; vnet_main_t *vnm = vnet_get_main (); int rv; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return clib_error_return (0, "Missing <interface>"); while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "sw_if_index %d", &sw_if_index)) ; else if (unformat (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index)) ; else return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); } unformat_free (line_input); if (sw_if_index == ~0) return clib_error_return (0, "please specify interface name or sw_if_index"); rv = tap_delete_if (vm, sw_if_index); if (rv == VNET_API_ERROR_INVALID_SW_IF_INDEX) return clib_error_return (0, "not a tap interface"); else if (rv != 0) return clib_error_return (0, "error on deleting tap interface"); return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (tap_delete__command, static) = { .path = "delete tap", .short_help = "delete tap {<interface> | sw_if_index <sw_idx>}", .function = tap_delete_command_fn, }; /* *INDENT-ON* */ static clib_error_t * tap_gso_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; u32 sw_if_index = ~0; vnet_main_t *vnm = vnet_get_main (); int enable = 1; int rv; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return clib_error_return (0, "Missing <interface>"); while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "sw_if_index %d", &sw_if_index)) ; else if (unformat (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index)) ; else if (unformat (line_input, "enable")) enable = 1; else if (unformat (line_input, "disable")) enable = 0; else return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); } unformat_free (line_input); if (sw_if_index == ~0) return clib_error_return (0, "please specify interface name or sw_if_index"); rv = tap_gso_enable_disable (vm, sw_if_index, enable); if (rv == VNET_API_ERROR_INVALID_SW_IF_INDEX) return clib_error_return (0, "not a tap interface"); else if (rv != 0) return clib_error_return (0, "error on configuring GSO on tap interface"); return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (tap_gso__command, static) = { .path = "set tap gso", .short_help = "set tap gso {<interface> | sw_if_index <sw_idx>} <enable|disable>", .function = tap_gso_command_fn, }; /* *INDENT-ON* */ static clib_error_t * tap_show_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { virtio_main_t *mm = &virtio_main; virtio_if_t *vif; vnet_main_t *vnm = vnet_get_main (); int show_descr = 0; clib_error_t *error = 0; u32 hw_if_index, *hw_if_indices = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "%U", unformat_vnet_hw_interface, vnm, &hw_if_index)) vec_add1 (hw_if_indices, hw_if_index); else if (unformat (input, "descriptors")) show_descr = 1; else { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, input); goto done; } } if (vec_len (hw_if_indices) == 0) { /* *INDENT-OFF* */ pool_foreach (vif, mm->interfaces, vec_add1 (hw_if_indices, vif->hw_if_index); ); /* *INDENT-ON* */ } virtio_show (vm, hw_if_indices, show_descr, VIRTIO_IF_TYPE_TAP); done: vec_free (hw_if_indices); return error; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (tap_show_command, static) = { .path = "show tap", .short_help = "show tap {<interface>] [descriptors]", .function = tap_show_command_fn, }; /* *INDENT-ON* */ clib_error_t * tap_cli_init (vlib_main_t * vm) { return 0; } VLIB_INIT_FUNCTION (tap_cli_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */