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authorFilip Tehlar <ftehlar@cisco.com>2021-06-22 21:20:29 +0000
committerOle Tr�an <otroan@employees.org>2021-06-24 08:30:43 +0000
commit5a9d2a1758c69b0960e61b9052eb058679955990 (patch)
tree1b62a1810f74034942908d94560fe685e1bc218b /src/vnet/l2/l2_input.h
parent2d9ae462ea455a8bd88fe96b31bf51197ecacf71 (diff)
l2: api cleanup
Use autogenerated code. Does not change API definitions. Type: improvement Signed-off-by: Filip Tehlar <ftehlar@cisco.com> Change-Id: I7b84767e75d5f8310ec071036a5780fa4530f79f
Diffstat (limited to 'src/vnet/l2/l2_input.h')
-rw-r--r--src/vnet/l2/l2_input.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/vnet/l2/l2_input.h b/src/vnet/l2/l2_input.h
index adc130e21fc..ba4c4b6ed31 100644
--- a/src/vnet/l2/l2_input.h
+++ b/src/vnet/l2/l2_input.h
@@ -95,6 +95,8 @@ typedef struct
/* convenience variables */
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
+
+ u16 msg_id_base;
} l2input_main_t;
extern l2input_main_t l2input_main;
182' href='#n182'>182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 
/*
 * Copyright (c) 2020 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this
 * 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 <vcl/vcl_private.h>

static int
vcl_api_connect_app_socket (vcl_worker_t * wrk)
{
  clib_socket_t *cs = &wrk->app_api_sock;
  clib_error_t *err;
  int rv = 0;

  cs->config = (char *) vcm->cfg.vpp_app_socket_api;
  cs->flags = CLIB_SOCKET_F_IS_CLIENT | CLIB_SOCKET_F_SEQPACKET;

  wrk->vcl_needs_real_epoll = 1;

  if ((err = clib_socket_init (cs)))
    {
      clib_error_report (err);
      rv = -1;
      goto done;
    }

done:

  wrk->vcl_needs_real_epoll = 0;

  return rv;
}

static int
vcl_api_attach_reply_handler (app_sapi_attach_reply_msg_t * mp, int *fds)
{
  vcl_worker_t *wrk = vcl_worker_get_current ();
  int i, rv, n_fds_used = 0;
  svm_msg_q_t *ctrl_mq;
  u64 segment_handle;
  u8 *segment_name;

  if (mp->retval)
    {
      VERR ("attach failed: %U", format_session_error, mp->retval);
      goto failed;
    }

  wrk->bapi_client_index = mp->api_client_handle;
  wrk->app_event_queue = uword_to_pointer (mp->app_mq, svm_msg_q_t *);
  ctrl_mq = uword_to_pointer (mp->vpp_ctrl_mq, svm_msg_q_t *);
  vec_validate (wrk->vpp_event_queues, mp->vpp_ctrl_mq_thread);
  wrk->vpp_event_queues[mp->vpp_ctrl_mq_thread] = ctrl_mq;
  vcm->ctrl_mq = wrk->ctrl_mq = ctrl_mq;
  segment_handle = mp->segment_handle;
  if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
    {
      VERR ("invalid segment handle");
      goto failed;
    }

  if (!mp->n_fds)
    goto failed;

  if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
    if (vcl_segment_attach (vcl_vpp_worker_segment_handle (0), "vpp-mq-seg",
			    SSVM_SEGMENT_MEMFD, fds[n_fds_used++]))
      goto failed;

  if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
    {
      segment_name = format (0, "memfd-%ld%c", segment_handle, 0);
      rv = vcl_segment_attach (segment_handle, (char *) segment_name,
			       SSVM_SEGMENT_MEMFD, fds[n_fds_used++]);
      vec_free (segment_name);
      if (rv != 0)
	goto failed;
    }

  if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
    {
      svm_msg_q_set_consumer_eventfd (wrk->app_event_queue,
				      fds[n_fds_used++]);
      vcl_mq_epoll_add_evfd (wrk, wrk->app_event_queue);
    }

  vcm->app_index = mp->app_index;

  return 0;

failed:

  for (i = clib_max (n_fds_used - 1, 0); i < mp->n_fds; i++)
    close (fds[i]);

  return -1;
}

static int
vcl_api_send_attach (clib_socket_t * cs)
{
  app_sapi_msg_t msg = { 0 };
  app_sapi_attach_msg_t *mp = &msg.attach;
  u8 app_is_proxy, tls_engine;
  clib_error_t *err;

  app_is_proxy = (vcm->cfg.app_proxy_transport_tcp ||
		  vcm->cfg.app_proxy_transport_udp);
  tls_engine = CRYPTO_ENGINE_OPENSSL;

  clib_memcpy (&mp->name, vcm->app_name, vec_len (vcm->app_name));
  mp->options[APP_OPTIONS_FLAGS] =
    APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT |
    (vcm->cfg.app_scope_local ? APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE : 0) |
    (vcm->cfg.app_scope_global ? APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE : 0) |
    (app_is_proxy ? APP_OPTIONS_FLAGS_IS_PROXY : 0) |
    (vcm->cfg.use_mq_eventfd ? APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD : 0);
  mp->options[APP_OPTIONS_PROXY_TRANSPORT] =
    (u64) ((vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) |
	   (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0));
  mp->options[APP_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
  mp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
  mp->options[APP_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
  mp->options[APP_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
  mp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
    vcm->cfg.preallocated_fifo_pairs;
  mp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = vcm->cfg.event_queue_size;
  mp->options[APP_OPTIONS_TLS_ENGINE] = tls_engine;

  msg.type = APP_SAPI_MSG_TYPE_ATTACH;
  err = clib_socket_sendmsg (cs, &msg, sizeof (msg), 0, 0);
  if (err)
    {
      clib_error_report (err);
      return -1;
    }

  return 0;
}

int
vcl_sapi_attach (void)
{
  vcl_worker_t *wrk = vcl_worker_get_current ();
  app_sapi_msg_t _rmp, *rmp = &_rmp;
  clib_error_t *err;
  clib_socket_t *cs;
  int fds[SESSION_N_FD_TYPE];

  /*
   * Init client socket and send attach
   */
  if (vcl_api_connect_app_socket (wrk))
    return -1;

  cs = &wrk->app_api_sock;
  if (vcl_api_send_attach (cs))
    return -1;

  /*
   * Wait for attach reply
   */
  err = clib_socket_recvmsg (cs, rmp, sizeof (*rmp), fds, ARRAY_LEN (fds));
  if (err)
    {
      clib_error_report (err);
      return -1;
    }

  if (rmp->type != APP_SAPI_MSG_TYPE_ATTACH_REPLY)
    return -1;

  return vcl_api_attach_reply_handler (&rmp->attach_reply, fds);
}

static int
vcl_api_add_del_worker_reply_handler (app_sapi_worker_add_del_reply_msg_t *
				      mp, int *fds)
{
  int n_fds = 0, i, rv;
  u64 segment_handle;
  vcl_worker_t *wrk;

  if (mp->retval)
    {
      VDBG (0, "add/del worker failed: %U", format_session_error, mp->retval);
      goto failed;
    }

  if (!mp->is_add)
    goto failed;

  wrk = vcl_worker_get_current ();
  wrk->vpp_wrk_index = mp->wrk_index;
  wrk->app_event_queue = uword_to_pointer (mp->app_event_queue_address,
					   svm_msg_q_t *);
  wrk->ctrl_mq = vcm->ctrl_mq;

  segment_handle = mp->segment_handle;
  if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
    {
      clib_warning ("invalid segment handle");
      goto failed;
    }

  if (!mp->n_fds)
    goto failed;

  if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
    if (vcl_segment_attach (vcl_vpp_worker_segment_handle (wrk->wrk_index),
			    "vpp-worker-seg", SSVM_SEGMENT_MEMFD,
			    fds[n_fds++]))
      goto failed;

  if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
    {
      u8 *segment_name = format (0, "memfd-%ld%c", segment_handle, 0);
      rv = vcl_segment_attach (segment_handle, (char *) segment_name,
			       SSVM_SEGMENT_MEMFD, fds[n_fds++]);
      vec_free (segment_name);
      if (rv != 0)
	goto failed;
    }

  if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
    {
      svm_msg_q_set_consumer_eventfd (wrk->app_event_queue, fds[n_fds]);
      vcl_mq_epoll_add_evfd (wrk, wrk->app_event_queue);
      n_fds++;
    }

  VDBG (0, "worker %u vpp-worker %u added", wrk->wrk_index,
	wrk->vpp_wrk_index);

  return 0;

failed:
  for (i = clib_max (n_fds - 1, 0); i < mp->n_fds; i++)
    close (fds[i]);

  return -1;
}

int
vcl_sapi_app_worker_add (void)
{
  vcl_worker_t *wrk = vcl_worker_get_current ();
  app_sapi_worker_add_del_msg_t *mp;
  app_sapi_msg_t _rmp, *rmp = &_rmp;
  app_sapi_msg_t msg = { 0 };
  int fds[SESSION_N_FD_TYPE];
  clib_error_t *err;
  clib_socket_t *cs;

  /* Connect to socket api */
  if (vcl_api_connect_app_socket (wrk))
    return -1;

  /*
   * Send add worker
   */
  cs = &wrk->app_api_sock;

  msg.type = APP_SAPI_MSG_TYPE_ADD_DEL_WORKER;
  mp = &msg.worker_add_del;
  mp->app_index = vcm->app_index;
  mp->is_add = 1;

  err = clib_socket_sendmsg (cs, &msg, sizeof (msg), 0, 0);
  if (err)
    {
      clib_error_report (err);
      return -1;
    }

  /*
   * Wait for reply and process it
   */
  err = clib_socket_recvmsg (cs, rmp, sizeof (*rmp), fds, ARRAY_LEN (fds));
  if (err)
    {
      clib_error_report (err);
      return -1;
    }

  if (rmp->type != APP_SAPI_MSG_TYPE_ADD_DEL_WORKER_REPLY)
    {
      clib_warning ("unexpected reply type %u", rmp->type);
      return -1;
    }

  return vcl_api_add_del_worker_reply_handler (&rmp->worker_add_del_reply,
					       fds);
}

void
vcl_sapi_app_worker_del (vcl_worker_t * wrk)
{
  app_sapi_worker_add_del_msg_t *mp;
  app_sapi_msg_t msg = { 0 };
  clib_error_t *err;
  clib_socket_t *cs;

  cs = &wrk->app_api_sock;

  msg.type = APP_SAPI_MSG_TYPE_ADD_DEL_WORKER;
  mp = &msg.worker_add_del;
  mp->app_index = vcm->app_index;
  mp->wrk_index = wrk->vpp_wrk_index;
  mp->is_add = 0;

  err = clib_socket_sendmsg (cs, &msg, sizeof (msg), 0, 0);
  if (err)
    clib_error_report (err);
  clib_socket_close (cs);
}

void
vcl_sapi_detach (vcl_worker_t * wrk)
{
  clib_socket_t *cs = &wrk->app_api_sock;
  clib_socket_close (cs);
}

int
vcl_sapi_recv_fds (vcl_worker_t * wrk, int *fds, int n_fds)
{
  app_sapi_msg_t _msg, *msg = &_msg;
  clib_socket_t *cs;
  clib_error_t *err;

  cs = &wrk->app_api_sock;

  err = clib_socket_recvmsg (cs, msg, sizeof (*msg), fds, n_fds);
  if (err)
    {
      clib_error_report (err);
      return -1;
    }
  if (msg->type != APP_SAPI_MSG_TYPE_SEND_FDS)
    return -1;

  return 0;
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */