Neale Ranns | b8d4481 | 2017-11-10 06:53:54 -0800 | [diff] [blame^] | 1 | /* |
| 2 | *------------------------------------------------------------------ |
| 3 | * punt_api.c - Punt api |
| 4 | * |
| 5 | * Copyright (c) 2016 Cisco and/or its affiliates. |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at: |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | *------------------------------------------------------------------ |
| 18 | */ |
| 19 | |
| 20 | #include <vnet/vnet.h> |
| 21 | #include <vlibmemory/api.h> |
| 22 | #include <vnet/ip/punt.h> |
| 23 | |
| 24 | #include <vnet/vnet_msg_enum.h> |
| 25 | |
| 26 | #define vl_typedefs /* define message structures */ |
| 27 | #include <vnet/vnet_all_api_h.h> |
| 28 | #undef vl_typedefs |
| 29 | |
| 30 | #define vl_endianfun /* define message structures */ |
| 31 | #include <vnet/vnet_all_api_h.h> |
| 32 | #undef vl_endianfun |
| 33 | |
| 34 | /* instantiate all the print functions we know about */ |
| 35 | #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) |
| 36 | #define vl_printfun |
| 37 | #include <vnet/vnet_all_api_h.h> |
| 38 | #undef vl_printfun |
| 39 | |
| 40 | #include <vlibapi/api_helper_macros.h> |
| 41 | |
| 42 | #define foreach_punt_api_msg \ |
| 43 | _(PUNT, punt) \ |
| 44 | _(PUNT_SOCKET_REGISTER, punt_socket_register) \ |
| 45 | _(PUNT_SOCKET_DEREGISTER, punt_socket_deregister) |
| 46 | |
| 47 | static void |
| 48 | vl_api_punt_t_handler (vl_api_punt_t * mp) |
| 49 | { |
| 50 | vl_api_punt_reply_t *rmp; |
| 51 | vlib_main_t *vm = vlib_get_main (); |
| 52 | int rv = 0; |
| 53 | clib_error_t *error; |
| 54 | |
| 55 | error = vnet_punt_add_del (vm, mp->ipv, mp->l4_protocol, |
| 56 | ntohs (mp->l4_port), mp->is_add); |
| 57 | if (error) |
| 58 | { |
| 59 | rv = -1; |
| 60 | clib_error_report (error); |
| 61 | } |
| 62 | |
| 63 | REPLY_MACRO (VL_API_PUNT_REPLY); |
| 64 | } |
| 65 | |
| 66 | static void |
| 67 | vl_api_punt_socket_register_t_handler (vl_api_punt_socket_register_t * mp) |
| 68 | { |
| 69 | vl_api_punt_socket_register_reply_t *rmp; |
| 70 | vlib_main_t *vm = vlib_get_main (); |
| 71 | int rv = 0; |
| 72 | clib_error_t *error; |
| 73 | unix_shared_memory_queue_t *q; |
| 74 | |
| 75 | error = vnet_punt_socket_add (vm, ntohl (mp->header_version), |
| 76 | mp->is_ip4, mp->l4_protocol, |
| 77 | ntohs (mp->l4_port), (char *) mp->pathname); |
| 78 | if (error) |
| 79 | { |
| 80 | rv = -1; |
| 81 | clib_error_report (error); |
| 82 | } |
| 83 | |
| 84 | q = vl_api_client_index_to_input_queue (mp->client_index); |
| 85 | if (!q) |
| 86 | return; |
| 87 | |
| 88 | rmp = vl_msg_api_alloc (sizeof (*rmp)); |
| 89 | rmp->_vl_msg_id = htons (VL_API_PUNT_SOCKET_REGISTER_REPLY); |
| 90 | rmp->context = mp->context; |
| 91 | rmp->retval = htonl (rv); |
| 92 | char *p = vnet_punt_get_server_pathname (); |
| 93 | /* Abstract pathnames start with \0 */ |
| 94 | memcpy ((char *) rmp->pathname, p, sizeof (rmp->pathname)); |
| 95 | vl_msg_api_send_shmem (q, (u8 *) & rmp); |
| 96 | } |
| 97 | |
| 98 | static void |
| 99 | vl_api_punt_socket_deregister_t_handler (vl_api_punt_socket_deregister_t * mp) |
| 100 | { |
| 101 | vl_api_punt_socket_deregister_reply_t *rmp; |
| 102 | vlib_main_t *vm = vlib_get_main (); |
| 103 | int rv = 0; |
| 104 | clib_error_t *error; |
| 105 | unix_shared_memory_queue_t *q; |
| 106 | |
| 107 | error = vnet_punt_socket_del (vm, mp->is_ip4, mp->l4_protocol, |
| 108 | ntohs (mp->l4_port)); |
| 109 | if (error) |
| 110 | { |
| 111 | rv = -1; |
| 112 | clib_error_report (error); |
| 113 | } |
| 114 | |
| 115 | q = vl_api_client_index_to_input_queue (mp->client_index); |
| 116 | if (!q) |
| 117 | return; |
| 118 | |
| 119 | rmp = vl_msg_api_alloc (sizeof (*rmp)); |
| 120 | rmp->_vl_msg_id = htons (VL_API_PUNT_SOCKET_DEREGISTER_REPLY); |
| 121 | rmp->context = mp->context; |
| 122 | rmp->retval = htonl (rv); |
| 123 | vl_msg_api_send_shmem (q, (u8 *) & rmp); |
| 124 | } |
| 125 | |
| 126 | #define vl_msg_name_crc_list |
| 127 | #include <vnet/ip/punt.api.h> |
| 128 | #undef vl_msg_name_crc_list |
| 129 | |
| 130 | static void |
| 131 | setup_message_id_table (api_main_t * am) |
| 132 | { |
| 133 | #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id); |
| 134 | foreach_vl_msg_name_crc_punt; |
| 135 | #undef _ |
| 136 | } |
| 137 | |
| 138 | static clib_error_t * |
| 139 | punt_api_hookup (vlib_main_t * vm) |
| 140 | { |
| 141 | api_main_t *am = &api_main; |
| 142 | |
| 143 | #define _(N,n) \ |
| 144 | vl_msg_api_set_handlers(VL_API_##N, #n, \ |
| 145 | vl_api_##n##_t_handler, \ |
| 146 | vl_noop_handler, \ |
| 147 | vl_api_##n##_t_endian, \ |
| 148 | vl_api_##n##_t_print, \ |
| 149 | sizeof(vl_api_##n##_t), 1); |
| 150 | foreach_punt_api_msg; |
| 151 | #undef _ |
| 152 | |
| 153 | /* |
| 154 | * Set up the (msg_name, crc, message-id) table |
| 155 | */ |
| 156 | setup_message_id_table (am); |
| 157 | |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | VLIB_API_INIT_FUNCTION (punt_api_hookup); |
| 162 | |
| 163 | |
| 164 | /* |
| 165 | * fd.io coding-style-patch-verification: ON |
| 166 | * |
| 167 | * Local Variables: |
| 168 | * eval: (c-set-style "gnu") |
| 169 | * End: |
| 170 | */ |