/* *------------------------------------------------------------------ * span_api.c - span mirroring api * * 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 <vnet/vnet.h> #include <vlibmemory/api.h> #include <vnet/interface.h> #include <vnet/api_errno.h> #include <vnet/span/span.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> #define foreach_vpe_api_msg \ _(SW_INTERFACE_SPAN_ENABLE_DISABLE, sw_interface_span_enable_disable) \ _(SW_INTERFACE_SPAN_DUMP, sw_interface_span_dump) \ static void vl_api_sw_interface_span_enable_disable_t_handler (vl_api_sw_interface_span_enable_disable_t * mp) { vl_api_sw_interface_span_enable_disable_reply_t *rmp; int rv; vlib_main_t *vm = vlib_get_main (); rv = span_add_delete_entry (vm, ntohl (mp->sw_if_index_from), ntohl (mp->sw_if_index_to), mp->state, mp->is_l2 ? SPAN_FEAT_L2 : SPAN_FEAT_DEVICE); REPLY_MACRO (VL_API_SW_INTERFACE_SPAN_ENABLE_DISABLE_REPLY); } static void vl_api_sw_interface_span_dump_t_handler (vl_api_sw_interface_span_dump_t * mp) { unix_shared_memory_queue_t *q; span_interface_t *si; vl_api_sw_interface_span_details_t *rmp; span_main_t *sm = &span_main; q = vl_api_client_index_to_input_queue (mp->client_index); if (!q) return; span_feat_t sf = mp->is_l2 ? SPAN_FEAT_L2 : SPAN_FEAT_DEVICE; /* *INDENT-OFF* */ vec_foreach (si, sm->interfaces) { span_mirror_t * rxm = &si->mirror_rxtx[sf][VLIB_RX]; span_mirror_t * txm = &si->mirror_rxtx[sf][VLIB_TX]; if (rxm->num_mirror_ports || txm->num_mirror_ports) { clib_bitmap_t *b; u32 i; b = clib_bitmap_dup_or (rxm->mirror_ports, txm->mirror_ports); clib_bitmap_foreach (i, b, ( { rmp = vl_msg_api_alloc (sizeof (*rmp)); memset (rmp, 0, sizeof (*rmp)); rmp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_SPAN_DETAILS); rmp->context = mp->context; rmp->sw_if_index_from = htonl (si - sm->interfaces); rmp->sw_if_index_to = htonl (i); rmp->state = (u8) (clib_bitmap_get (rxm->mirror_ports, i) + clib_bitmap_get (txm->mirror_ports, i) * 2); vl_msg_api_send_shmem (q, (u8 *) & rmp); })); clib_bitmap_free (b); } } /* *INDENT-ON* */ } /* * vpe_api_hookup * Add vpe's API message handlers to the table. * vlib has alread mapped shared memory and * added the client registration handlers. * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process() */ #define vl_msg_name_crc_list #include <vnet/vnet_all_api_h.h> #undef vl_msg_name_crc_list static void 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_span; #undef _ } static clib_error_t * span_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_vpe_api_msg; #undef _ /* * Set up the (msg_name, crc, message-id) table */ setup_message_id_table (am); return 0; } VLIB_API_INIT_FUNCTION (span_api_hookup); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */