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authorFilip Varga <fivarga@cisco.com>2020-12-10 15:55:25 +0100
committerOle Tr�an <otroan@employees.org>2021-01-05 14:09:39 +0000
commita210798c407035f09c10c018ebdaf12312161730 (patch)
treec03e68701aaca9c3a4207107bdacb183da8a4a5a /src/plugins/nat/nat44_api.c
parent641c6be821c3136cb140b6726e16246f2f1cbd4c (diff)
nat: refactor and split fo EI/ED features
This patch is aimed at moving EI features out of NAT44 plugin & split of EI/ED functions. Type: refactor Change-Id: I63cf70a264ed2512708fe92665d64f04690783d0 Signed-off-by: Filip Varga <fivarga@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat44_api.c')
-rw-r--r--src/plugins/nat/nat44_api.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/src/plugins/nat/nat44_api.c b/src/plugins/nat/nat44_api.c
index 5bc4b4cb4e6..cfe2211acd3 100644
--- a/src/plugins/nat/nat44_api.c
+++ b/src/plugins/nat/nat44_api.c
@@ -31,7 +31,8 @@
#include <nat/nat44.api_enum.h>
#include <nat/nat44.api_types.h>
-#include <nat/nat_ha.h>
+#include <nat/nat44-ei/nat44_ei_ha.h>
+#include <nat/nat44-ei/nat44_ei.h>
#include <nat/nat_inlines.h>
#include <nat/nat44/inlines.h>
@@ -350,11 +351,11 @@ static void
switch (mp->alg)
{
case NAT_ADDR_AND_PORT_ALLOC_ALG_DEFAULT:
- nat_set_alloc_addr_and_port_default ();
+ nat44_ei_set_alloc_default ();
break;
case NAT_ADDR_AND_PORT_ALLOC_ALG_MAPE:
- nat_set_alloc_addr_and_port_mape (ntohs (mp->psid), mp->psid_offset,
- mp->psid_length);
+ nat44_ei_set_alloc_mape (ntohs (mp->psid), mp->psid_offset,
+ mp->psid_length);
break;
case NAT_ADDR_AND_PORT_ALLOC_ALG_RANGE:
port_start = ntohs (mp->start_port);
@@ -364,7 +365,7 @@ static void
rv = VNET_API_ERROR_INVALID_VALUE;
goto send_reply;
}
- nat_set_alloc_addr_and_port_range (port_start, port_end);
+ nat44_ei_set_alloc_range (port_start, port_end);
break;
default:
rv = VNET_API_ERROR_INVALID_VALUE;
>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 
/*
 * Copyright (c) 2015 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.
 */
/*
 * ethernet_format.c: ethernet formatting/parsing.
 *
 * Copyright (c) 2008 Eliot Dresselhaus
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <vlib/vlib.h>
#include <vnet/ethernet/ethernet.h>

u8 *
format_ethernet_address (u8 * s, va_list * args)
{
  ethernet_main_t *em = &ethernet_main;
  u8 *a = va_arg (*args, u8 *);

  if (em->format_ethernet_address_16bit)
    return format (s, "%02x%02x.%02x%02x.%02x%02x",
		   a[0], a[1], a[2], a[3], a[4], a[5]);
  else
    return format (s, "%02x:%02x:%02x:%02x:%02x:%02x",
		   a[0], a[1], a[2], a[3], a[4], a[5]);
}

u8 *
format_mac_address (u8 * s, va_list * args)
{
  return (format_ethernet_address (s, args));
}

u8 *
format_ethernet_type (u8 * s, va_list * args)
{
  ethernet_type_t type = va_arg (*args, u32);
  ethernet_main_t *em = &ethernet_main;
  ethernet_type_info_t *t = ethernet_get_type_info (em, type);

  if (t)
    s = format (s, "%s", t->name);
  else
    s = format (s, "0x%04x", type);

  return s;
}

u8 *
format_ethernet_vlan_tci (u8 * s, va_list * va)
{
  u32 vlan_tci = va_arg (*va, u32);

  u32 vid = (vlan_tci & 0xfff);
  u32 cfi = (vlan_tci >> 12) & 1;
  u32 pri = (vlan_tci >> 13);

  s = format (s, "%d", vid);
  if (pri != 0)
    s = format (s, " priority %d", pri);
  if (cfi != 0)
    s = format (s, " cfi");

  return s;
}

u8 *
format_ethernet_header_with_length (u8 * s, va_list * args)
{
  ethernet_pbb_header_packed_t *ph =
    va_arg (*args, ethernet_pbb_header_packed_t *);
  ethernet_max_header_t *m = (ethernet_max_header_t *) ph;
  u32 max_header_bytes = va_arg (*args, u32);
  ethernet_main_t *em = &ethernet_main;
  ethernet_header_t *e = &m->ethernet;
  ethernet_vlan_header_t *v;
  ethernet_type_t type = clib_net_to_host_u16 (e->type);
  ethernet_type_t vlan_type[ARRAY_LEN (m->vlan)];
  u32 n_vlan = 0, i, header_bytes;
  u32 indent;

  while ((type == ETHERNET_TYPE_VLAN || type == ETHERNET_TYPE_DOT1AD
	  || type == ETHERNET_TYPE_DOT1AH) && n_vlan < ARRAY_LEN (m->vlan))
    {
      vlan_type[n_vlan] = type;
      if (type != ETHERNET_TYPE_DOT1AH)
	{
	  v = m->vlan + n_vlan;
	  type = clib_net_to_host_u16 (v->type);
	}
      n_vlan++;
    }

  header_bytes = sizeof (e[0]) + n_vlan * sizeof (v[0]);
  if (max_header_bytes != 0 && header_bytes > max_header_bytes)
    return format (s, "ethernet header truncated");

  indent = format_get_indent (s);

  s = format (s, "%U: %U -> %U",
	      format_ethernet_type, type,
	      format_ethernet_address, e->src_address,
	      format_ethernet_address, e->dst_address);

  if (type != ETHERNET_TYPE_DOT1AH)
    {
      for (i = 0; i < n_vlan; i++)
	{
	  u32 v = clib_net_to_host_u16 (m->vlan[i].priority_cfi_and_id);
	  if (*vlan_type == ETHERNET_TYPE_VLAN)
	    s = format (s, " 802.1q vlan %U", format_ethernet_vlan_tci, v);
	  else
	    s = format (s, " 802.1ad vlan %U", format_ethernet_vlan_tci, v);
	}

      if (max_header_bytes != 0 && header_bytes < max_header_bytes)
	{
	  ethernet_type_info_t *ti;
	  vlib_node_t *node = 0;

	  ti = ethernet_get_type_info (em, type);
	  if (ti && ti->node_index != ~0)
	    node = vlib_get_node (em->vlib_main, ti->node_index);
	  if (node && node->format_buffer)
	    s = format (s, "\n%U%U",
			format_white_space, indent,
			node->format_buffer, (void *) m + header_bytes,
			max_header_bytes - header_bytes);
	}
    }
  else
    {
      s =
	format (s, " %s b-tag %04X",
		(clib_net_to_host_u16 (ph->b_type) ==
		 ETHERNET_TYPE_DOT1AD) ? "802.1ad" : "",
		clib_net_to_host_u16 (ph->priority_dei_id));
      s =
	format (s, " %s i-tag %08X",
		(clib_net_to_host_u16 (ph->i_type) ==
		 ETHERNET_TYPE_DOT1AH) ? "802.1ah" : "",
		clib_net_to_host_u32 (ph->priority_dei_uca_res_sid));
    }

  return s;
}

u8 *
format_ethernet_header (u8 * s, va_list * args)
{
  ethernet_max_header_t *m = va_arg (*args, ethernet_max_header_t *);
  return format (s, "%U", format_ethernet_header_with_length, m, 0);
}

/* Parse X:X:X:X:X:X unix style ethernet address. */
static uword
unformat_ethernet_address_unix (unformat_input_t * input, va_list * args)
{
  u8 *result = va_arg (*args, u8 *);
  u32 i, a[6];

  if (!unformat (input, "%_%x:%x:%x:%x:%x:%x%_",
		 &a[0], &a[1], &a[2], &a[3], &a[4], &a[5]))
    return 0;

  /* Check range. */
  for (i = 0; i < ARRAY_LEN (a); i++)
    if (a[i] >= (1 << 8))
      return 0;

  for (i = 0; i < ARRAY_LEN (a); i++)
    result[i] = a[i];

  return 1;
}

/* Parse X.X.X cisco style ethernet address. */
static uword
unformat_ethernet_address_cisco (unformat_input_t * input, va_list * args)
{
  u8 *result = va_arg (*args, u8 *);
  u32 i, a[3];

  if (!unformat (input, "%_%x.%x.%x%_", &a[0], &a[1], &a[2]))
    return 0;

  /* Check range. */
  for (i = 0; i < ARRAY_LEN (a); i++)
    if (a[i] >= (1 << 16))
      return 0;

  result[0] = (a[0] >> 8) & 0xff;
  result[1] = (a[0] >> 0) & 0xff;
  result[2] = (a[1] >> 8) & 0xff;
  result[3] = (a[1] >> 0) & 0xff;
  result[4] = (a[2] >> 8) & 0xff;
  result[5] = (a[2] >> 0) & 0xff;

  return 1;
}

/* Parse ethernet address; accept either unix or style addresses. */
uword
unformat_ethernet_address (unformat_input_t * input, va_list * args)
{
  u8 *result = va_arg (*args, u8 *);
  return (unformat_user (input, unformat_ethernet_address_unix, result)
	  || unformat_user (input, unformat_ethernet_address_cisco, result));
}

uword
unformat_mac_address (unformat_input_t * input, va_list * args)
{
  return (unformat_ethernet_address (input, args));
}


/* Returns ethernet type as an int in host byte order. */
uword
unformat_ethernet_type_host_byte_order (unformat_input_t * input,
					va_list * args)
{
  u16 *result = va_arg (*args, u16 *);
  ethernet_main_t *em = &ethernet_main;
  int type, i;

  /* Numeric type. */
  if (unformat (input, "0x%x", &type) || unformat (input, "%d", &type))
    {
      if (type >= (1 << 16))
	return 0;
      *result = type;
      return 1;
    }

  /* Named type. */
  if (unformat_user (input, unformat_vlib_number_by_name,
		     em->type_info_by_name, &i))
    {
      ethernet_type_info_t *ti = vec_elt_at_index (em->type_infos, i);
      *result = ti->type;
      return 1;
    }

  return 0;
}

uword
unformat_ethernet_type_net_byte_order (unformat_input_t * input,
				       va_list * args)
{
  u16 *result = va_arg (*args, u16 *);
  if (!unformat_user (input, unformat_ethernet_type_host_byte_order, result))
    return 0;

  *result = clib_host_to_net_u16 ((u16) * result);
  return 1;
}

uword
unformat_ethernet_header (unformat_input_t * input, va_list * args)
{
  u8 **result = va_arg (*args, u8 **);
  ethernet_max_header_t _m, *m = &_m;
  ethernet_header_t *e = &m->ethernet;
  u16 type;
  u32 n_vlan;

  if (!unformat (input, "%U: %U -> %U",
		 unformat_ethernet_type_host_byte_order, &type,
		 unformat_ethernet_address, &e->src_address,
		 unformat_ethernet_address, &e->dst_address))
    return 0;

  n_vlan = 0;
  while (unformat (input, "vlan"))
    {
      u32 id, priority;

      if (!unformat_user (input, unformat_vlib_number, &id)
	  || id >= ETHERNET_N_VLAN)
	return 0;

      if (unformat (input, "priority %d", &priority))
	{
	  if (priority >= 8)
	    return 0;
	  id |= priority << 13;
	}

      if (unformat (input, "cfi"))
	id |= 1 << 12;

      /* Too many vlans given. */
      if (n_vlan >= ARRAY_LEN (m->vlan))
	return 0;

      m->vlan[n_vlan].priority_cfi_and_id = clib_host_to_net_u16 (id);
      n_vlan++;
    }

  if (n_vlan == 0)
    e->type = clib_host_to_net_u16 (type);
  else
    {
      int i;

      e->type = clib_host_to_net_u16 (ETHERNET_TYPE_VLAN);
      for (i = 0; i < n_vlan - 1; i++)
	m->vlan[i].type = clib_host_to_net_u16 (ETHERNET_TYPE_VLAN);
      m->vlan[n_vlan - 1].type = clib_host_to_net_u16 (type);
    }

  /* Add header to result. */
  {
    void *p;
    u32 n_bytes = sizeof (e[0]) + n_vlan * sizeof (m->vlan[0]);

    vec_add2 (*result, p, n_bytes);
    clib_memcpy (p, m, n_bytes);
  }

  return 1;
}

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