diff options
Diffstat (limited to 'src/vnet/devices/af_packet/af_packet_api.c')
| -rw-r--r-- | src/vnet/devices/af_packet/af_packet_api.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/vnet/devices/af_packet/af_packet_api.c b/src/vnet/devices/af_packet/af_packet_api.c new file mode 100644 index 00000000..414c838c --- /dev/null +++ b/src/vnet/devices/af_packet/af_packet_api.c @@ -0,0 +1,143 @@ +/* + *------------------------------------------------------------------ + * af_packet_api.c - af-packet 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/devices/af_packet/af_packet.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 \ +_(AF_PACKET_CREATE, af_packet_create) \ +_(AF_PACKET_DELETE, af_packet_delete) + +static void +vl_api_af_packet_create_t_handler (vl_api_af_packet_create_t * mp) +{ + vlib_main_t *vm = vlib_get_main (); + vl_api_af_packet_create_reply_t *rmp; + int rv = 0; + u8 *host_if_name = NULL; + u32 sw_if_index; + + host_if_name = format (0, "%s", mp->host_if_name); + vec_add1 (host_if_name, 0); + + rv = af_packet_create_if (vm, host_if_name, + mp->use_random_hw_addr ? 0 : mp->hw_addr, + &sw_if_index); + + vec_free (host_if_name); + + /* *INDENT-OFF* */ + REPLY_MACRO2(VL_API_AF_PACKET_CREATE_REPLY, + ({ + rmp->sw_if_index = clib_host_to_net_u32(sw_if_index); + })); + /* *INDENT-ON* */ +} + +static void +vl_api_af_packet_delete_t_handler (vl_api_af_packet_delete_t * mp) +{ + vlib_main_t *vm = vlib_get_main (); + vl_api_af_packet_delete_reply_t *rmp; + int rv = 0; + u8 *host_if_name = NULL; + + host_if_name = format (0, "%s", mp->host_if_name); + vec_add1 (host_if_name, 0); + + rv = af_packet_delete_if (vm, host_if_name); + + vec_free (host_if_name); + + REPLY_MACRO (VL_API_AF_PACKET_DELETE_REPLY); +} + +/* + * af_packet_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_af_packet; +#undef _ +} + +static clib_error_t * +af_packet_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 (af_packet_api_hookup); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |