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authorFlorin Coras <fcoras@cisco.com>2021-07-21 18:17:20 -0700
committerDave Barach <openvpp@barachs.net>2021-07-22 16:50:46 +0000
commitf6e284b20c7a5b774ae21934fbf3f07801d61fc2 (patch)
treebebb5d84fff954af8762c70724559a4c721dd8e1 /src/vcl/vcl_private.c
parent4cef6de5915d22508c3e79335fbbe226f47ad0f5 (diff)
session vcl: explit mq indices in ctrl messages
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I8e80252b85dda9a8f5699109264dc1b913581442
Diffstat (limited to 'src/vcl/vcl_private.c')
-rw-r--r--src/vcl/vcl_private.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/vcl/vcl_private.c b/src/vcl/vcl_private.c
index 6d1145bfb9e..8f8ebf9d2e8 100644
--- a/src/vcl/vcl_private.c
+++ b/src/vcl/vcl_private.c
@@ -409,8 +409,8 @@ vcl_segment_detach (u64 segment_handle)
int
vcl_segment_attach_session (uword segment_handle, uword rxf_offset,
- uword txf_offset, uword mq_offset, u8 is_ct,
- vcl_session_t *s)
+ uword txf_offset, uword mq_offset, u32 mq_index,
+ u8 is_ct, vcl_session_t *s)
{
u32 fs_index, eqs_index;
svm_fifo_t *rxf, *txf;
@@ -443,8 +443,7 @@ vcl_segment_attach_session (uword segment_handle, uword rxf_offset,
if (!is_ct && mq_offset != (uword) ~0)
{
fs = fifo_segment_get_segment (&vcm->segment_main, eqs_index);
- s->vpp_evt_q =
- fifo_segment_msg_q_attach (fs, mq_offset, rxf->shr->slice_index);
+ s->vpp_evt_q = fifo_segment_msg_q_attach (fs, mq_offset, mq_index);
}
clib_rwlock_reader_unlock (&vcm->segment_table_lock);
a id='n200' href='#n200'>200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 
/*
 *------------------------------------------------------------------
 * dhcp_api.c - dhcp 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/dhcp/dhcp_proxy.h>
#include <vnet/dhcp/client.h>
#include <vnet/dhcp/dhcp6_pd_client_dp.h>
#include <vnet/dhcp/dhcp6_ia_na_client_dp.h>
#include <vnet/dhcp/dhcp6_client_common_dp.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_vpe_api_msg                       \
_(DHCP_PROXY_CONFIG,dhcp_proxy_config)            \
_(DHCP_PROXY_DUMP,dhcp_proxy_dump)                \
_(DHCP_PROXY_SET_VSS,dhcp_proxy_set_vss)          \
_(DHCP_CLIENT_CONFIG, dhcp_client_config)         \
_(DHCP_CLIENT_DUMP, dhcp_client_dump)             \
_(WANT_DHCP6_PD_REPLY_EVENTS, want_dhcp6_pd_reply_events)               \
_(DHCP6_PD_SEND_CLIENT_MESSAGE, dhcp6_pd_send_client_message)           \
_(WANT_DHCP6_REPLY_EVENTS, want_dhcp6_reply_events)               \
_(DHCP6_SEND_CLIENT_MESSAGE, dhcp6_send_client_message)           \
_(DHCP6_CLIENTS_ENABLE_DISABLE, dhcp6_clients_enable_disable)     \
_(DHCP6_DUID_LL_SET, dhcp6_duid_ll_set)


static void
vl_api_dhcp_proxy_set_vss_t_handler (vl_api_dhcp_proxy_set_vss_t * mp)
{
  vl_api_dhcp_proxy_set_vss_reply_t *rmp;
  u8 *vpn_ascii_id;
  int rv;

  mp->vpn_ascii_id[sizeof (mp->vpn_ascii_id) - 1] = 0;
  vpn_ascii_id = format (0, "%s", mp->vpn_ascii_id);
  rv =
    dhcp_proxy_set_vss ((mp->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4),
			ntohl (mp->tbl_id), mp->vss_type, vpn_ascii_id,
			ntohl (mp->oui), ntohl (mp->vpn_index),
			mp->is_add == 0);

  REPLY_MACRO (VL_API_DHCP_PROXY_SET_VSS_REPLY);
}


static void vl_api_dhcp_proxy_config_t_handler
  (vl_api_dhcp_proxy_config_t * mp)
{
  vl_api_dhcp_proxy_set_vss_reply_t *rmp;
  ip46_address_t src, server;
  int rv = -1;

  if (mp->is_ipv6)
    {
      clib_memcpy (&src.ip6, mp->dhcp_src_address, sizeof (src.ip6));
      clib_memcpy (&server.ip6, mp->dhcp_server, sizeof (server.ip6));

      rv = dhcp6_proxy_set_server (&server,
				   &src,
				   (u32) ntohl (mp->rx_vrf_id),
				   (u32) ntohl (mp->server_vrf_id),
				   (int) (mp->is_add == 0));
    }
  else
    {
      ip46_address_reset (&src);
      ip46_address_reset (&server);

      clib_memcpy (&src.ip4, mp->dhcp_src_address, sizeof (src.ip4));
      clib_memcpy (&server.ip4, mp->dhcp_server, sizeof (server.ip4));

      rv = dhcp4_proxy_set_server (&server,
				   &src,
				   (u32) ntohl (mp->rx_vrf_id),
				   (u32) ntohl (mp->server_vrf_id),
				   (int) (mp->is_add == 0));
    }


  REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY);
}

static void
vl_api_dhcp_proxy_dump_t_handler (vl_api_dhcp_proxy_dump_t * mp)
{
  vl_api_registration_t *reg;

  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;;

  dhcp_proxy_dump ((mp->is_ip6 == 1 ?
		    FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4), reg, mp->context);
}

void
dhcp_send_details (fib_protocol_t proto,
		   void *opaque, u32 context, dhcp_proxy_t * proxy)
{
  vl_api_dhcp_proxy_details_t *mp;
  vl_api_registration_t *reg = opaque;
  vl_api_dhcp_server_t *v_server;
  dhcp_server_t *server;
  fib_table_t *s_fib;
  dhcp_vss_t *vss;
  u32 count;
  size_t n;

  count = vec_len (proxy->dhcp_servers);
  n = sizeof (*mp) + (count * sizeof (vl_api_dhcp_server_t));
  mp = vl_msg_api_alloc (n);
  if (!mp)
    return;
  clib_memset (mp, 0, n);
  mp->_vl_msg_id = ntohs (VL_API_DHCP_PROXY_DETAILS);
  mp->context = context;
  mp->count = count;

  mp->is_ipv6 = (proto == FIB_PROTOCOL_IP6);
  mp->rx_vrf_id =
    htonl (dhcp_proxy_rx_table_get_table_id (proto, proxy->rx_fib_index));

  vss = dhcp_get_vss_info (&dhcp_proxy_main, proxy->rx_fib_index, proto);

  if (vss)
    {
      mp->vss_type = vss->vss_type;
      if (vss->vss_type == VSS_TYPE_ASCII)
	{
	  u32 id_len = vec_len (vss->vpn_ascii_id);
	  clib_memcpy (mp->vss_vpn_ascii_id, vss->vpn_ascii_id, id_len);
	}
      else if (vss->vss_type == VSS_TYPE_VPN_ID)
	{
	  u32 oui = ((u32) vss->vpn_id[0] << 16) + ((u32) vss->vpn_id[1] << 8)
	    + ((u32) vss->vpn_id[2]);
	  u32 fib_id = ((u32) vss->vpn_id[3] << 24) +
	    ((u32) vss->vpn_id[4] << 16) + ((u32) vss->vpn_id[5] << 8) +
	    ((u32) vss->vpn_id[6]);
	  mp->vss_oui = htonl (oui);
	  mp->vss_fib_id = htonl (fib_id);
	}
    }
  else
    mp->vss_type = VSS_TYPE_INVALID;

  vec_foreach_index (count, proxy->dhcp_servers)
  {
    server = &proxy->dhcp_servers[count];
    v_server = &mp->servers[count];

    s_fib = fib_table_get (server->server_fib_index, proto);

    v_server->server_vrf_id = htonl (s_fib->ft_table_id);

    if (mp->is_ipv6)
      {
	memcpy (v_server->dhcp_server, &server->dhcp_server.ip6, 16);
      }
    else
      {
	/* put the address in the first bytes */
	memcpy (v_server->dhcp_server, &server->dhcp_server.ip4, 4);
      }
  }

  if (mp->is_ipv6)
    {
      memcpy (mp->dhcp_src_address, &proxy->dhcp_src_address.ip6, 16);
    }
  else
    {
      /* put the address in the first bytes */
      memcpy (mp->dhcp_src_address, &proxy->dhcp_src_address.ip4, 4);
    }
  vl_api_send_msg (reg, (u8 *) mp);
}

static void
dhcp_client_lease_encode (vl_api_dhcp_lease_t * lease,
			  const dhcp_client_t * client)
{
  size_t len;

  lease->is_ipv6 = 0;		// only support IPv6 clients
  lease->sw_if_index = ntohl (client->sw_if_index);
  lease->state = client->state;
  len = clib_min (sizeof (lease->hostname) - 1, vec_len (client->hostname));
  clib_memcpy (&lease->hostname, client->hostname, len);
  lease->hostname[len] = 0;

  lease->mask_width = client->subnet_mask_width;
  clib_memcpy (&lease->host_address[0], (u8 *) & client->leased_address, 4);
  clib_memcpy (&lease->router_address[0], (u8 *) & client->router_address, 4);

  if (NULL != client->l2_rewrite)
    clib_memcpy (&lease->host_mac[0], client->l2_rewrite + 6, 6);
}

static void
dhcp_client_data_encode (vl_api_dhcp_client_t * vclient,
			 const dhcp_client_t * client)
{
  size_t len;

  vclient->sw_if_index = ntohl (client->sw_if_index);
  len = clib_min (sizeof (vclient->hostname) - 1, vec_len (client->hostname));
  clib_memcpy (&vclient->hostname, client->hostname, len);
  vclient->hostname[len] = 0;

  len = clib_min (sizeof (vclient->id) - 1,
		  vec_len (client->client_identifier));
  clib_memcpy (&vclient->id, client->client_identifier, len);
  vclient->id[len] = 0;

  if (NULL != client->event_callback)
    vclient->want_dhcp_event = 1;
  else
    vclient->want_dhcp_event = 0;
  vclient->set_broadcast_flag = client->set_broadcast_flag;
  vclient->pid = client->pid;
}

static void
dhcp_compl_event_callback (u32 client_index, const dhcp_client_t * client)
{
  vl_api_registration_t *reg;
  vl_api_dhcp_compl_event_t *mp;

  reg = vl_api_client_index_to_registration (client_index);
  if (!reg)
    return;

  mp = vl_msg_api_alloc (sizeof (*mp));
  mp->client_index = client_index;
  mp->pid = client->pid;
  dhcp_client_lease_encode (&mp->lease, client);

  mp->_vl_msg_id = ntohs (VL_API_DHCP_COMPL_EVENT);

  vl_api_send_msg (reg, (u8 *) mp);
}

static void vl_api_dhcp_client_config_t_handler
  (vl_api_dhcp_client_config_t * mp)
{
  vlib_main_t *vm = vlib_get_main ();
  vl_api_dhcp_client_config_reply_t *rmp;
  u32 sw_if_index;
  int rv = 0;

  sw_if_index = ntohl (mp->client.sw_if_index);
  if (!vnet_sw_if_index_is_api_valid (sw_if_index))
    {
      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
      goto bad_sw_if_index;
    }

  rv = dhcp_client_config (mp->is_add,
			   mp->client_index,
			   vm,
			   sw_if_index,
			   mp->client.hostname,
			   mp->client.id,
			   (mp->client.want_dhcp_event ?
			    dhcp_compl_event_callback :
			    NULL),
			   mp->client.set_broadcast_flag, mp->client.pid);

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_DHCP_CLIENT_CONFIG_REPLY);
}

typedef struct dhcp_client_send_walk_ctx_t_
{
  vl_api_registration_t *reg;
  u32 context;
} dhcp_client_send_walk_ctx_t;

static int
send_dhcp_client_entry (const dhcp_client_t * client, void *arg)
{
  dhcp_client_send_walk_ctx_t *ctx;
  vl_api_dhcp_client_details_t *mp;

  ctx = arg;

  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));

  mp->_vl_msg_id = ntohs (VL_API_DHCP_CLIENT_DETAILS);
  mp->context = ctx->context;

  dhcp_client_data_encode (&mp->client, client);
  dhcp_client_lease_encode (&mp->lease, client);

  vl_api_send_msg (ctx->reg, (u8 *) mp);

  return (1);
}

static void
vl_api_dhcp_client_dump_t_handler (vl_api_dhcp_client_dump_t * mp)
{
  vl_api_registration_t *reg;

  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  dhcp_client_send_walk_ctx_t ctx = {
    .reg = reg,
    .context = mp->context,
  };
  dhcp_client_walk (send_dhcp_client_entry, &ctx);
}

/*
 * dhcp_api_hookup
 * Add vpe's API message handlers to the table.
 * vlib has already 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_dhcp;
#undef _
}

static clib_error_t *
dhcp_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);

  dhcp6_pd_set_publisher_node (dhcp6_pd_reply_process_node.index,
			       DHCP6_PD_DP_REPLY_REPORT);
  dhcp6_set_publisher_node (dhcp6_reply_process_node.index,
			    DHCP6_DP_REPLY_REPORT);

  return 0;
}

VLIB_API_INIT_FUNCTION (dhcp_api_hookup);

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