| /* |
| *------------------------------------------------------------------ |
| * tap_api.c - vnet tap device driver API support |
| * |
| * Copyright (c) 2017 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 <vnet/vnet.h> |
| #include <vlibmemory/api.h> |
| |
| #include <vnet/interface.h> |
| #include <vnet/api_errno.h> |
| #include <vnet/ethernet/ethernet.h> |
| #include <vnet/ip/ip.h> |
| |
| #include <vnet/vnet_msg_enum.h> |
| |
| #define vl_typedefs /* define message structures */ |
| #include <vnet/vnet_all_api_h.h> |
| #undef vl_typedefs |
| |
| #define vl_endianfun /* define message structures */ |
| #include <vnet/vnet_all_api_h.h> |
| #undef vl_endianfun |
| |
| /* instantiate all the print functions we know about */ |
| #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) |
| #define vl_printfun |
| #include <vnet/vnet_all_api_h.h> |
| #undef vl_printfun |
| |
| #include <vlibapi/api_helper_macros.h> |
| #include <vnet/devices/tap/tap.h> |
| |
| #define foreach_tapv2_api_msg \ |
| _(TAP_CREATE_V2, tap_create_v2) \ |
| _(TAP_DELETE_V2, tap_delete_v2) \ |
| _(SW_INTERFACE_TAP_V2_DUMP, sw_interface_tap_v2_dump) |
| |
| static void |
| vl_api_tap_create_v2_t_handler (vl_api_tap_create_v2_t * mp) |
| { |
| vlib_main_t *vm = vlib_get_main (); |
| vl_api_tap_create_v2_reply_t *rmp; |
| vl_api_registration_t *reg; |
| tap_create_if_args_t _a, *ap = &_a; |
| |
| memset (ap, 0, sizeof (*ap)); |
| |
| ap->id = ntohl (mp->id); |
| if (!mp->use_random_mac) |
| { |
| clib_memcpy (ap->mac_addr, mp->mac_address, 6); |
| ap->mac_addr_set = 1; |
| } |
| ap->rx_ring_sz = ntohs (mp->rx_ring_sz); |
| ap->tx_ring_sz = ntohs (mp->tx_ring_sz); |
| ap->sw_if_index = (u32) ~ 0; |
| |
| if (mp->host_if_name_set) |
| ap->host_if_name = mp->host_if_name; |
| |
| if (mp->host_mac_addr_set) |
| { |
| clib_memcpy (ap->host_mac_addr, mp->host_mac_addr, 6); |
| ap->mac_addr_set = 1; |
| } |
| |
| if (mp->host_namespace_set) |
| ap->host_namespace = mp->host_namespace; |
| |
| if (mp->host_bridge_set) |
| ap->host_bridge = mp->host_bridge; |
| |
| if (mp->host_ip4_addr_set) |
| { |
| clib_memcpy (&ap->host_ip4_addr.as_u8, mp->host_ip4_addr, 4); |
| ap->host_ip4_prefix_len = mp->host_ip4_prefix_len; |
| } |
| |
| if (mp->host_ip6_addr_set) |
| { |
| clib_memcpy (&ap->host_ip6_addr, mp->host_ip6_addr, 16); |
| ap->host_ip6_prefix_len = mp->host_ip6_prefix_len; |
| } |
| |
| if (mp->host_ip4_gw_set) |
| { |
| clib_memcpy (&ap->host_ip4_gw, mp->host_ip4_gw, 4); |
| ap->host_ip4_gw_set = 1; |
| } |
| |
| if (mp->host_ip6_gw_set) |
| { |
| clib_memcpy (&ap->host_ip6_gw, mp->host_ip6_gw, 16); |
| ap->host_ip6_gw_set = 1; |
| } |
| |
| tap_create_if (vm, ap); |
| |
| reg = vl_api_client_index_to_registration (mp->client_index); |
| if (!reg) |
| return;; |
| |
| rmp = vl_msg_api_alloc (sizeof (*rmp)); |
| rmp->_vl_msg_id = ntohs (VL_API_TAP_CREATE_V2_REPLY); |
| rmp->context = mp->context; |
| rmp->retval = ntohl (ap->rv); |
| rmp->sw_if_index = ntohl (ap->sw_if_index); |
| |
| vl_api_send_msg (reg, (u8 *) rmp); |
| } |
| |
| static void |
| tap_send_sw_interface_event_deleted (vpe_api_main_t * am, |
| vl_api_registration_t * reg, |
| u32 sw_if_index) |
| { |
| vl_api_sw_interface_event_t *mp; |
| |
| mp = vl_msg_api_alloc (sizeof (*mp)); |
| memset (mp, 0, sizeof (*mp)); |
| mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_EVENT); |
| mp->sw_if_index = ntohl (sw_if_index); |
| |
| mp->admin_up_down = 0; |
| mp->link_up_down = 0; |
| mp->deleted = 1; |
| vl_api_send_msg (reg, (u8 *) mp); |
| } |
| |
| static void |
| vl_api_tap_delete_v2_t_handler (vl_api_tap_delete_v2_t * mp) |
| { |
| vlib_main_t *vm = vlib_get_main (); |
| int rv; |
| vpe_api_main_t *vam = &vpe_api_main; |
| vl_api_tap_delete_v2_reply_t *rmp; |
| vl_api_registration_t *reg; |
| u32 sw_if_index = ntohl (mp->sw_if_index); |
| |
| rv = tap_delete_if (vm, sw_if_index); |
| |
| reg = vl_api_client_index_to_registration (mp->client_index); |
| if (!reg) |
| return; |
| |
| rmp = vl_msg_api_alloc (sizeof (*rmp)); |
| rmp->_vl_msg_id = ntohs (VL_API_TAP_DELETE_V2_REPLY); |
| rmp->context = mp->context; |
| rmp->retval = ntohl (rv); |
| |
| vl_api_send_msg (reg, (u8 *) rmp); |
| |
| if (!rv) |
| tap_send_sw_interface_event_deleted (vam, reg, sw_if_index); |
| } |
| |
| static void |
| tap_send_sw_interface_details (vpe_api_main_t * am, |
| vl_api_registration_t * reg, |
| tap_interface_details_t * tap_if, u32 context) |
| { |
| vl_api_sw_interface_tap_v2_details_t *mp; |
| mp = vl_msg_api_alloc (sizeof (*mp)); |
| memset (mp, 0, sizeof (*mp)); |
| mp->_vl_msg_id = htons (VL_API_SW_INTERFACE_TAP_V2_DETAILS); |
| mp->id = htonl (tap_if->id); |
| mp->sw_if_index = htonl (tap_if->sw_if_index); |
| clib_memcpy (mp->dev_name, tap_if->dev_name, |
| MIN (ARRAY_LEN (mp->dev_name) - 1, |
| strlen ((const char *) tap_if->dev_name))); |
| mp->rx_ring_sz = htons (tap_if->rx_ring_sz); |
| mp->tx_ring_sz = htons (tap_if->tx_ring_sz); |
| clib_memcpy (mp->host_mac_addr, tap_if->host_mac_addr, 6); |
| clib_memcpy (mp->host_if_name, tap_if->host_if_name, |
| MIN (ARRAY_LEN (mp->host_if_name) - 1, |
| strlen ((const char *) tap_if->host_if_name))); |
| clib_memcpy (mp->host_namespace, tap_if->host_namespace, |
| MIN (ARRAY_LEN (mp->host_namespace) - 1, |
| strlen ((const char *) tap_if->host_namespace))); |
| clib_memcpy (mp->host_bridge, tap_if->host_bridge, |
| MIN (ARRAY_LEN (mp->host_bridge) - 1, |
| strlen ((const char *) tap_if->host_bridge))); |
| if (tap_if->host_ip4_prefix_len) |
| clib_memcpy (&mp->host_ip4_addr, &tap_if->host_ip4_addr, 4); |
| mp->host_ip4_prefix_len = tap_if->host_ip4_prefix_len; |
| if (tap_if->host_ip6_prefix_len) |
| clib_memcpy (&mp->host_ip6_addr, &tap_if->host_ip6_addr, 16); |
| mp->host_ip6_prefix_len = tap_if->host_ip6_prefix_len; |
| |
| mp->context = context; |
| vl_api_send_msg (reg, (u8 *) mp); |
| } |
| |
| static void |
| vl_api_sw_interface_tap_v2_dump_t_handler (vl_api_sw_interface_tap_v2_dump_t * |
| mp) |
| { |
| int rv; |
| vpe_api_main_t *am = &vpe_api_main; |
| vl_api_registration_t *reg; |
| tap_interface_details_t *tapifs = NULL; |
| tap_interface_details_t *tap_if = NULL; |
| |
| reg = vl_api_client_index_to_registration (mp->client_index); |
| if (!reg) |
| return; |
| |
| rv = tap_dump_ifs (&tapifs); |
| if (rv) |
| return; |
| |
| vec_foreach (tap_if, tapifs) |
| { |
| tap_send_sw_interface_details (am, reg, tap_if, mp->context); |
| } |
| |
| vec_free (tapifs); |
| } |
| |
| #define vl_msg_name_crc_list |
| #include <vnet/vnet_all_api_h.h> |
| #undef vl_msg_name_crc_list |
| |
| static void |
| tap_setup_message_id_table (api_main_t * am) |
| { |
| #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id); |
| foreach_vl_msg_name_crc_tapv2; |
| #undef _ |
| } |
| |
| static clib_error_t * |
| tapv2_api_hookup (vlib_main_t * vm) |
| { |
| api_main_t *am = &api_main; |
| |
| #define _(N,n) \ |
| vl_msg_api_set_handlers(VL_API_##N, #n, \ |
| vl_api_##n##_t_handler, \ |
| vl_noop_handler, \ |
| vl_api_##n##_t_endian, \ |
| vl_api_##n##_t_print, \ |
| sizeof(vl_api_##n##_t), 1); |
| foreach_tapv2_api_msg; |
| #undef _ |
| |
| /* |
| * Set up the (msg_name, crc, message-id) table |
| */ |
| tap_setup_message_id_table (am); |
| |
| return 0; |
| } |
| |
| VLIB_API_INIT_FUNCTION (tapv2_api_hookup); |
| |
| /* |
| * fd.io coding-style-patch-verification: ON |
| * |
| * Local Variables: |
| * eval: (c-set-style "gnu") |
| * End: |
| */ |