diff options
Diffstat (limited to 'src/vnet/udp/udp_api.c')
| -rw-r--r-- | src/vnet/udp/udp_api.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/vnet/udp/udp_api.c b/src/vnet/udp/udp_api.c new file mode 100644 index 00000000000..e65235a5396 --- /dev/null +++ b/src/vnet/udp/udp_api.c @@ -0,0 +1,193 @@ +/* + * 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/udp/udp_encap.h> +#include <vnet/fib/fib_table.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_udp_api_msg \ + _(UDP_ENCAP_ADD_DEL, udp_encap_add_del) \ +_(UDP_ENCAP_DUMP, udp_encap_dump) + +static void +send_udp_encap_details (const udp_encap_t * ue, + unix_shared_memory_queue_t * q, u32 context) +{ + vl_api_udp_encap_details_t *mp; + fib_table_t *fib_table; + + mp = vl_msg_api_alloc (sizeof (*mp)); + memset (mp, 0, sizeof (*mp)); + mp->_vl_msg_id = ntohs (VL_API_UDP_ENCAP_DETAILS); + mp->context = context; + + mp->is_ip6 = (ue->ue_ip_proto == FIB_PROTOCOL_IP6); + + if (FIB_PROTOCOL_IP4 == ue->ue_ip_proto) + { + clib_memcpy (mp->src_ip, &ue->ue_hdrs.ip4.ue_ip4.src_address, 4); + clib_memcpy (mp->dst_ip, &ue->ue_hdrs.ip4.ue_ip4.dst_address, 4); + mp->src_port = htons (ue->ue_hdrs.ip4.ue_udp.src_port); + mp->dst_port = htons (ue->ue_hdrs.ip4.ue_udp.dst_port); + } + else + { + clib_memcpy (mp->src_ip, &ue->ue_hdrs.ip6.ue_ip6.src_address, 16); + clib_memcpy (mp->dst_ip, &ue->ue_hdrs.ip6.ue_ip6.dst_address, 16); + mp->src_port = htons (ue->ue_hdrs.ip6.ue_udp.src_port); + mp->dst_port = htons (ue->ue_hdrs.ip6.ue_udp.dst_port); + } + + fib_table = fib_table_get (ue->ue_fib_index, ue->ue_ip_proto); + mp->table_id = htonl (fib_table->ft_table_id); + mp->id = htonl (ue->ue_id); + + vl_msg_api_send_shmem (q, (u8 *) & mp); +} + +static void +vl_api_udp_encap_dump_t_handler (vl_api_udp_encap_dump_t * mp, + vlib_main_t * vm) +{ + unix_shared_memory_queue_t *q; + udp_encap_t *ue; + + q = vl_api_client_index_to_input_queue (mp->client_index); + if (q == 0) + return; + + /* *INDENT-OFF* */ + pool_foreach(ue, udp_encap_pool, + ({ + send_udp_encap_details(ue, q, mp->context); + })); + /* *INDENT-OFF* */ +} + +static void +vl_api_udp_encap_add_del_t_handler (vl_api_udp_encap_add_del_t * mp, + vlib_main_t * vm) +{ + vl_api_udp_encap_add_del_reply_t *rmp; + ip46_address_t src_ip, dst_ip; + u32 fib_index, table_id, ue_id; + fib_protocol_t fproto; + int rv = 0; + + ue_id = ntohl(mp->id); + table_id = ntohl(mp->table_id); + fproto = (mp->is_ip6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4); + + fib_index = fib_table_find(fproto, table_id); + + if (~0 == fib_index) + { + rv = VNET_API_ERROR_NO_SUCH_TABLE; + goto done; + } + + if (FIB_PROTOCOL_IP4 == fproto) + { + clib_memcpy(&src_ip.ip4, mp->src_ip, 4); + clib_memcpy(&dst_ip.ip4, mp->dst_ip, 4); + } + else + { + clib_memcpy(&src_ip.ip6, mp->src_ip, 16); + clib_memcpy(&dst_ip.ip6, mp->dst_ip, 16); + } + + if (mp->is_add) + { + udp_encap_add_and_lock(ue_id, fproto, fib_index, + &src_ip, &dst_ip, + ntohs(mp->src_port), + ntohs(mp->dst_port), + UDP_ENCAP_FIXUP_NONE); + } + else + { + udp_encap_unlock(ue_id); + } + + done: + REPLY_MACRO (VL_API_UDP_ENCAP_ADD_DEL_REPLY); +} + +#define vl_msg_name_crc_list +#include <vnet/udp/udp.api.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_udp; +#undef _ +} + +static clib_error_t * +udp_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_udp_api_msg; +#undef _ + + /* + * Set up the (msg_name, crc, message-id) table + */ + setup_message_id_table (am); + + return 0; +} + +VLIB_API_INIT_FUNCTION (udp_api_hookup); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |