2 * Copyright (c) 2020 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vcl/vcl_private.h>
19 vcl_api_connect_app_socket (vcl_worker_t * wrk)
21 clib_socket_t *cs = &wrk->app_api_sock;
25 cs->config = (char *) vcm->cfg.vpp_app_socket_api;
26 cs->flags = CLIB_SOCKET_F_IS_CLIENT | CLIB_SOCKET_F_SEQPACKET;
28 wrk->vcl_needs_real_epoll = 1;
30 if ((err = clib_socket_init (cs)))
32 clib_error_report (err);
39 wrk->vcl_needs_real_epoll = 0;
45 vcl_api_attach_reply_handler (app_sapi_attach_reply_msg_t * mp, int *fds)
47 vcl_worker_t *wrk = vcl_worker_get_current ();
48 int i, rv, n_fds_used = 0;
54 VERR ("attach failed: %U", format_session_error, mp->retval);
58 wrk->api_client_handle = mp->api_client_handle;
59 segment_handle = mp->segment_handle;
60 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
62 VERR ("invalid segment handle");
69 if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
70 if (vcl_segment_attach (vcl_vpp_worker_segment_handle (0), "vpp-mq-seg",
71 SSVM_SEGMENT_MEMFD, fds[n_fds_used++]))
74 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_ctrl_mq,
75 mp->vpp_ctrl_mq_thread, &wrk->ctrl_mq);
76 vcm->ctrl_mq = wrk->ctrl_mq;
78 if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
80 segment_name = format (0, "memfd-%ld%c", segment_handle, 0);
81 rv = vcl_segment_attach (segment_handle, (char *) segment_name,
82 SSVM_SEGMENT_MEMFD, fds[n_fds_used++]);
83 vec_free (segment_name);
88 vcl_segment_attach_mq (segment_handle, mp->app_mq, 0, &wrk->app_event_queue);
90 if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
92 svm_msg_q_set_eventfd (wrk->app_event_queue, fds[n_fds_used++]);
93 vcl_mq_epoll_add_evfd (wrk, wrk->app_event_queue);
96 vcm->app_index = mp->app_index;
102 for (i = clib_max (n_fds_used - 1, 0); i < mp->n_fds; i++)
109 vcl_api_send_attach (clib_socket_t * cs)
111 app_sapi_msg_t msg = { 0 };
112 app_sapi_attach_msg_t *mp = &msg.attach;
113 u8 app_is_proxy, tls_engine;
116 app_is_proxy = (vcm->cfg.app_proxy_transport_tcp ||
117 vcm->cfg.app_proxy_transport_udp);
118 tls_engine = CRYPTO_ENGINE_OPENSSL;
120 clib_memcpy (&mp->name, vcm->app_name, vec_len (vcm->app_name));
121 mp->options[APP_OPTIONS_FLAGS] =
122 APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT |
123 (vcm->cfg.app_scope_local ? APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE : 0) |
124 (vcm->cfg.app_scope_global ? APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE : 0) |
125 (app_is_proxy ? APP_OPTIONS_FLAGS_IS_PROXY : 0) |
126 (vcm->cfg.use_mq_eventfd ? APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD : 0);
127 mp->options[APP_OPTIONS_PROXY_TRANSPORT] =
128 (u64) ((vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) |
129 (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0));
130 mp->options[APP_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
131 mp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
132 mp->options[APP_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
133 mp->options[APP_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
134 mp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
135 vcm->cfg.preallocated_fifo_pairs;
136 mp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = vcm->cfg.event_queue_size;
137 mp->options[APP_OPTIONS_TLS_ENGINE] = tls_engine;
139 msg.type = APP_SAPI_MSG_TYPE_ATTACH;
140 err = clib_socket_sendmsg (cs, &msg, sizeof (msg), 0, 0);
143 clib_error_report (err);
151 vcl_sapi_attach (void)
153 vcl_worker_t *wrk = vcl_worker_get_current ();
154 app_sapi_msg_t _rmp, *rmp = &_rmp;
157 int fds[SESSION_N_FD_TYPE];
160 * Init client socket and send attach
162 if (vcl_api_connect_app_socket (wrk))
165 cs = &wrk->app_api_sock;
166 if (vcl_api_send_attach (cs))
170 * Wait for attach reply
172 err = clib_socket_recvmsg (cs, rmp, sizeof (*rmp), fds, ARRAY_LEN (fds));
175 clib_error_report (err);
179 if (rmp->type != APP_SAPI_MSG_TYPE_ATTACH_REPLY)
182 return vcl_api_attach_reply_handler (&rmp->attach_reply, fds);
186 vcl_api_add_del_worker_reply_handler (app_sapi_worker_add_del_reply_msg_t *
189 int n_fds = 0, i, rv;
195 VDBG (0, "add/del worker failed: %U", format_session_error, mp->retval);
202 wrk = vcl_worker_get_current ();
203 wrk->api_client_handle = mp->api_client_handle;
204 wrk->vpp_wrk_index = mp->wrk_index;
205 wrk->ctrl_mq = vcm->ctrl_mq;
207 segment_handle = mp->segment_handle;
208 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
210 clib_warning ("invalid segment handle");
217 if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
218 if (vcl_segment_attach (vcl_vpp_worker_segment_handle (wrk->wrk_index),
219 "vpp-worker-seg", SSVM_SEGMENT_MEMFD,
223 if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
225 u8 *segment_name = format (0, "memfd-%ld%c", segment_handle, 0);
226 rv = vcl_segment_attach (segment_handle, (char *) segment_name,
227 SSVM_SEGMENT_MEMFD, fds[n_fds++]);
228 vec_free (segment_name);
233 vcl_segment_attach_mq (segment_handle, mp->app_event_queue_address, 0,
234 &wrk->app_event_queue);
236 if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
238 svm_msg_q_set_eventfd (wrk->app_event_queue, fds[n_fds]);
239 vcl_mq_epoll_add_evfd (wrk, wrk->app_event_queue);
243 VDBG (0, "worker %u vpp-worker %u added", wrk->wrk_index,
249 for (i = clib_max (n_fds - 1, 0); i < mp->n_fds; i++)
256 vcl_sapi_app_worker_add (void)
258 vcl_worker_t *wrk = vcl_worker_get_current ();
259 app_sapi_worker_add_del_msg_t *mp;
260 app_sapi_msg_t _rmp, *rmp = &_rmp;
261 app_sapi_msg_t msg = { 0 };
262 int fds[SESSION_N_FD_TYPE];
266 /* Connect to socket api */
267 if (vcl_api_connect_app_socket (wrk))
273 cs = &wrk->app_api_sock;
275 msg.type = APP_SAPI_MSG_TYPE_ADD_DEL_WORKER;
276 mp = &msg.worker_add_del;
277 mp->app_index = vcm->app_index;
280 err = clib_socket_sendmsg (cs, &msg, sizeof (msg), 0, 0);
283 clib_error_report (err);
288 * Wait for reply and process it
290 err = clib_socket_recvmsg (cs, rmp, sizeof (*rmp), fds, ARRAY_LEN (fds));
293 clib_error_report (err);
297 if (rmp->type != APP_SAPI_MSG_TYPE_ADD_DEL_WORKER_REPLY)
299 clib_warning ("unexpected reply type %u", rmp->type);
303 return vcl_api_add_del_worker_reply_handler (&rmp->worker_add_del_reply,
308 vcl_sapi_app_worker_del (vcl_worker_t * wrk)
310 app_sapi_worker_add_del_msg_t *mp;
311 app_sapi_msg_t msg = { 0 };
315 cs = &wrk->app_api_sock;
317 msg.type = APP_SAPI_MSG_TYPE_ADD_DEL_WORKER;
318 mp = &msg.worker_add_del;
319 mp->app_index = vcm->app_index;
320 mp->wrk_index = wrk->vpp_wrk_index;
323 err = clib_socket_sendmsg (cs, &msg, sizeof (msg), 0, 0);
325 clib_error_report (err);
326 clib_socket_close (cs);
330 vcl_sapi_detach (vcl_worker_t * wrk)
332 clib_socket_t *cs = &wrk->app_api_sock;
333 clib_socket_close (cs);
337 vcl_sapi_recv_fds (vcl_worker_t * wrk, int *fds, int n_fds)
339 app_sapi_msg_t _msg, *msg = &_msg;
343 cs = &wrk->app_api_sock;
345 err = clib_socket_recvmsg (cs, msg, sizeof (*msg), fds, n_fds);
348 clib_error_report (err);
351 if (msg->type != APP_SAPI_MSG_TYPE_SEND_FDS)
358 * fd.io coding-style-patch-verification: ON
361 * eval: (c-set-style "gnu")