2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with 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 /** Generate typed init functions for multiple hash table styles... */
17 #include <vppinfra/bihash_16_8.h>
18 #include <vppinfra/bihash_template.h>
20 #include <vppinfra/bihash_template.c>
22 #undef __included_bihash_template_h__
24 #include <vppinfra/bihash_48_8.h>
25 #include <vppinfra/bihash_template.h>
27 #include <vppinfra/bihash_template.c>
28 #include <vnet/session/session_lookup.h>
29 #include <vnet/session/session.h>
30 #include <vnet/session/application.h>
33 * External vector of per transport virtual functions table
35 extern transport_proto_vft_t *tp_vfts;
38 * Network namespace index (i.e., fib index) to session lookup table. We
39 * should have one per network protocol type but for now we only support IP4/6
41 static u32 *fib_index_to_table_index[2];
45 typedef CLIB_PACKED (struct {
54 /* align by making this 4 octets even though its a 1-bit field
55 * NOTE: avoid key overlap with other transports that use 5 tuples for
56 * session identification.
62 }) v4_connection_key_t;
64 typedef CLIB_PACKED (struct {
79 }) v6_connection_key_t;
82 typedef clib_bihash_kv_16_8_t session_kv4_t;
83 typedef clib_bihash_kv_48_8_t session_kv6_t;
86 make_v4_ss_kv (session_kv4_t * kv, ip4_address_t * lcl, ip4_address_t * rmt,
87 u16 lcl_port, u16 rmt_port, u8 proto)
89 v4_connection_key_t *key = (v4_connection_key_t *) kv->key;
91 key->src.as_u32 = lcl->as_u32;
92 key->dst.as_u32 = rmt->as_u32;
93 key->src_port = lcl_port;
94 key->dst_port = rmt_port;
101 make_v4_listener_kv (session_kv4_t * kv, ip4_address_t * lcl, u16 lcl_port,
104 v4_connection_key_t *key = (v4_connection_key_t *) kv->key;
106 key->src.as_u32 = lcl->as_u32;
108 key->src_port = lcl_port;
116 make_v4_ss_kv_from_tc (session_kv4_t * kv, transport_connection_t * t)
118 make_v4_ss_kv (kv, &t->lcl_ip.ip4, &t->rmt_ip.ip4, t->lcl_port, t->rmt_port,
119 session_type_from_proto_and_ip (t->transport_proto, 1));
123 make_v6_ss_kv (session_kv6_t * kv, ip6_address_t * lcl, ip6_address_t * rmt,
124 u16 lcl_port, u16 rmt_port, u8 proto)
126 v6_connection_key_t *key = (v6_connection_key_t *) kv->key;
128 key->src.as_u64[0] = lcl->as_u64[0];
129 key->src.as_u64[1] = lcl->as_u64[1];
130 key->dst.as_u64[0] = rmt->as_u64[0];
131 key->dst.as_u64[1] = rmt->as_u64[1];
132 key->src_port = lcl_port;
133 key->dst_port = rmt_port;
141 make_v6_listener_kv (session_kv6_t * kv, ip6_address_t * lcl, u16 lcl_port,
144 v6_connection_key_t *key = (v6_connection_key_t *) kv->key;
146 key->src.as_u64[0] = lcl->as_u64[0];
147 key->src.as_u64[1] = lcl->as_u64[1];
148 key->dst.as_u64[0] = 0;
149 key->dst.as_u64[1] = 0;
150 key->src_port = lcl_port;
159 make_v6_ss_kv_from_tc (session_kv6_t * kv, transport_connection_t * t)
161 make_v6_ss_kv (kv, &t->lcl_ip.ip6, &t->rmt_ip.ip6, t->lcl_port, t->rmt_port,
162 session_type_from_proto_and_ip (t->transport_proto, 0));
166 static session_table_t *
167 session_table_get_or_alloc_for_connection (transport_connection_t * tc)
170 u32 table_index, fib_proto = transport_connection_fib_proto (tc);
171 if (vec_len (fib_index_to_table_index[fib_proto]) <= tc->fib_index)
173 st = session_table_alloc ();
174 table_index = session_table_index (st);
175 vec_validate (fib_index_to_table_index[fib_proto], tc->fib_index);
176 fib_index_to_table_index[fib_proto][tc->fib_index] = table_index;
181 table_index = fib_index_to_table_index[fib_proto][tc->fib_index];
182 return session_table_get (table_index);
186 static session_table_t *
187 session_table_get_for_connection (transport_connection_t * tc)
189 u32 fib_proto = transport_connection_fib_proto (tc);
190 if (vec_len (fib_index_to_table_index[fib_proto]) <= tc->fib_index)
193 session_table_get (fib_index_to_table_index[fib_proto][tc->fib_index]);
196 static session_table_t *
197 session_table_get_for_fib_index (u32 fib_proto, u32 fib_index)
199 if (vec_len (fib_index_to_table_index[fib_proto]) <= fib_index)
201 return session_table_get (fib_index_to_table_index[fib_proto][fib_index]);
205 session_lookup_get_index_for_fib (u32 fib_proto, u32 fib_index)
207 if (vec_len (fib_index_to_table_index[fib_proto]) <= fib_index)
208 return SESSION_TABLE_INVALID_INDEX;
209 return fib_index_to_table_index[fib_proto][fib_index];
213 * Add transport connection to a session table
215 * Session lookup 5-tuple (src-ip, dst-ip, src-port, dst-port, session-type)
216 * is added to requested session table.
218 * @param tc transport connection to be added
219 * @param value value to be stored
221 * @return non-zero if failure
224 session_lookup_add_connection (transport_connection_t * tc, u64 value)
230 st = session_table_get_or_alloc_for_connection (tc);
235 make_v4_ss_kv_from_tc (&kv4, tc);
237 return clib_bihash_add_del_16_8 (&st->v4_session_hash, &kv4,
242 make_v6_ss_kv_from_tc (&kv6, tc);
244 return clib_bihash_add_del_48_8 (&st->v6_session_hash, &kv6,
250 session_lookup_add_session_endpoint (u32 table_index,
251 session_endpoint_t * sep, u64 value)
257 st = session_table_get (table_index);
262 make_v4_listener_kv (&kv4, &sep->ip.ip4, sep->port,
263 sep->transport_proto);
265 return clib_bihash_add_del_16_8 (&st->v4_session_hash, &kv4, 1);
269 make_v6_listener_kv (&kv6, &sep->ip.ip6, sep->port,
270 sep->transport_proto);
272 return clib_bihash_add_del_48_8 (&st->v6_session_hash, &kv6, 1);
277 session_lookup_del_session_endpoint (u32 table_index,
278 session_endpoint_t * sep)
284 st = session_table_get (table_index);
289 make_v4_listener_kv (&kv4, &sep->ip.ip4, sep->port,
290 sep->transport_proto);
291 return clib_bihash_add_del_16_8 (&st->v4_session_hash, &kv4, 0);
295 make_v6_listener_kv (&kv6, &sep->ip.ip6, sep->port,
296 sep->transport_proto);
297 return clib_bihash_add_del_48_8 (&st->v6_session_hash, &kv6, 0);
302 * Delete transport connection from session table
304 * @param table_index session table index
305 * @param tc transport connection to be removed
307 * @return non-zero if failure
310 session_lookup_del_connection (transport_connection_t * tc)
316 st = session_table_get_for_connection (tc);
321 make_v4_ss_kv_from_tc (&kv4, tc);
322 return clib_bihash_add_del_16_8 (&st->v4_session_hash, &kv4,
327 make_v6_ss_kv_from_tc (&kv6, tc);
328 return clib_bihash_add_del_48_8 (&st->v6_session_hash, &kv6,
334 session_lookup_del_session (stream_session_t * s)
336 transport_connection_t *ts;
337 ts = tp_vfts[s->session_type].get_connection (s->connection_index,
339 return session_lookup_del_connection (ts);
343 session_lookup_session_endpoint (u32 table_index, session_endpoint_t * sep)
350 st = session_table_get (table_index);
352 return SESSION_INVALID_INDEX;
355 make_v4_listener_kv (&kv4, &sep->ip.ip4, sep->port,
356 sep->transport_proto);
357 rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
359 return (u32) kv4.value;
363 make_v6_listener_kv (&kv6, &sep->ip.ip6, sep->port,
364 sep->transport_proto);
365 rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
367 return (u32) kv6.value;
369 return SESSION_INVALID_INDEX;
373 session_lookup_local_session_endpoint (u32 table_index,
374 session_endpoint_t * sep)
381 st = session_table_get (table_index);
383 return SESSION_INVALID_INDEX;
386 make_v4_listener_kv (&kv4, &sep->ip.ip4, sep->port,
387 sep->transport_proto);
388 rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
390 return (u32) kv4.value;
393 * Zero out the ip. Logic is that connect to local ips, say
394 * 127.0.0.1:port, can match 0.0.0.0:port
397 rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
399 return (u32) kv4.value;
403 make_v6_listener_kv (&kv6, &sep->ip.ip6, sep->port,
404 sep->transport_proto);
405 rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
407 return (u32) kv6.value;
410 * Zero out the ip. Same logic as above.
412 kv6.key[0] = kv6.key[1] = 0;
413 rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
415 return (u32) kv6.value;
417 return SESSION_INVALID_INDEX;
420 static stream_session_t *
421 session_lookup_listener4_i (session_table_t * st, ip4_address_t * lcl,
422 u16 lcl_port, u8 proto)
427 make_v4_listener_kv (&kv4, lcl, lcl_port, proto);
428 rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
430 return session_manager_get_listener (proto, (u32) kv4.value);
432 /* Zero out the lcl ip */
434 rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
436 return session_manager_get_listener (proto, (u32) kv4.value);
442 session_lookup_listener4 (u32 fib_index, ip4_address_t * lcl, u16 lcl_port,
446 st = session_table_get_for_fib_index (FIB_PROTOCOL_IP4, fib_index);
449 return session_lookup_listener4_i (st, lcl, lcl_port, proto);
452 static stream_session_t *
453 session_lookup_listener6_i (session_table_t * st, ip6_address_t * lcl,
454 u16 lcl_port, u8 proto)
459 make_v6_listener_kv (&kv6, lcl, lcl_port, proto);
460 rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
462 return session_manager_get_listener (proto, (u32) kv6.value);
464 /* Zero out the lcl ip */
465 kv6.key[0] = kv6.key[1] = 0;
466 rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
468 return session_manager_get_listener (proto, (u32) kv6.value);
474 session_lookup_listener6 (u32 fib_index, ip6_address_t * lcl, u16 lcl_port,
478 st = session_table_get_for_fib_index (FIB_PROTOCOL_IP6, fib_index);
481 return session_lookup_listener6_i (st, lcl, lcl_port, proto);
485 session_lookup_listener (u32 table_index, session_endpoint_t * sep)
488 st = session_table_get (table_index);
492 return session_lookup_listener4_i (st, &sep->ip.ip4, sep->port,
493 sep->transport_proto);
495 return session_lookup_listener6_i (st, &sep->ip.ip6, sep->port,
496 sep->transport_proto);
501 session_lookup_add_half_open (transport_connection_t * tc, u64 value)
507 st = session_table_get_or_alloc_for_connection (tc);
512 make_v4_ss_kv_from_tc (&kv4, tc);
514 return clib_bihash_add_del_16_8 (&st->v4_half_open_hash, &kv4,
519 make_v6_ss_kv_from_tc (&kv6, tc);
521 return clib_bihash_add_del_48_8 (&st->v6_half_open_hash, &kv6,
527 session_lookup_del_half_open (transport_connection_t * tc)
533 st = session_table_get_for_connection (tc);
538 make_v4_ss_kv_from_tc (&kv4, tc);
539 return clib_bihash_add_del_16_8 (&st->v4_half_open_hash, &kv4,
544 make_v6_ss_kv_from_tc (&kv6, tc);
545 return clib_bihash_add_del_48_8 (&st->v6_half_open_hash, &kv6,
551 session_lookup_half_open_handle (transport_connection_t * tc)
558 st = session_table_get_for_fib_index (transport_connection_fib_proto (tc),
561 return HALF_OPEN_LOOKUP_INVALID_VALUE;
564 make_v4_ss_kv (&kv4, &tc->lcl_ip.ip4, &tc->rmt_ip.ip4, tc->lcl_port,
565 tc->rmt_port, tc->transport_proto);
566 rv = clib_bihash_search_inline_16_8 (&st->v4_half_open_hash, &kv4);
572 make_v6_ss_kv (&kv6, &tc->lcl_ip.ip6, &tc->rmt_ip.ip6, tc->lcl_port,
573 tc->rmt_port, tc->transport_proto);
574 rv = clib_bihash_search_inline_48_8 (&st->v6_half_open_hash, &kv6);
578 return HALF_OPEN_LOOKUP_INVALID_VALUE;
581 transport_connection_t *
582 session_lookup_half_open_connection (u64 handle, u8 proto, u8 is_ip4)
586 if (handle != HALF_OPEN_LOOKUP_INVALID_VALUE)
588 sst = session_type_from_proto_and_ip (proto, is_ip4);
589 return tp_vfts[sst].get_half_open (handle & 0xFFFFFFFF);
595 * Lookup connection with ip4 and transport layer information
597 * This is used on the fast path so it needs to be fast. Thereby,
598 * duplication of code and 'hacks' allowed.
600 * The lookup is incremental and returns whenever something is matched. The
602 * - Try to find an established session
603 * - Try to find a fully-formed or local source wildcarded (listener bound to
604 * all interfaces) listener session
605 * - Try to find a half-open connection
608 * @param fib_index index of fib wherein the connection was received
609 * @param lcl local ip4 address
610 * @param rmt remote ip4 address
611 * @param lcl_port local port
612 * @param rmt_port remote port
613 * @param proto transport protocol (e.g., tcp, udp)
614 * @param thread_index thread index for request
616 * @return pointer to transport connection, if one is found, 0 otherwise
618 transport_connection_t *
619 session_lookup_connection_wt4 (u32 fib_index, ip4_address_t * lcl,
620 ip4_address_t * rmt, u16 lcl_port,
621 u16 rmt_port, u8 proto, u32 thread_index)
628 st = session_table_get_for_fib_index (FIB_PROTOCOL_IP4, fib_index);
629 if (PREDICT_FALSE (!st))
632 /* Lookup session amongst established ones */
633 make_v4_ss_kv (&kv4, lcl, rmt, lcl_port, rmt_port, proto);
634 rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
637 ASSERT ((u32) (kv4.value >> 32) == thread_index);
638 s = session_get (kv4.value & 0xFFFFFFFFULL, thread_index);
639 return tp_vfts[s->session_type].get_connection (s->connection_index,
643 /* If nothing is found, check if any listener is available */
644 s = session_lookup_listener4_i (st, lcl, lcl_port, proto);
646 return tp_vfts[s->session_type].get_listener (s->connection_index);
648 /* Finally, try half-open connections */
649 rv = clib_bihash_search_inline_16_8 (&st->v4_half_open_hash, &kv4);
652 u32 sst = session_type_from_proto_and_ip (proto, 1);
653 return tp_vfts[sst].get_half_open (kv4.value & 0xFFFFFFFF);
659 * Lookup connection with ip4 and transport layer information
661 * Not optimized. This is used on the fast path so it needs to be fast.
662 * Thereby, duplication of code and 'hacks' allowed. Lookup logic is identical
663 * to that of @ref session_lookup_connection_wt4
665 * @param fib_index index of the fib wherein the connection was received
666 * @param lcl local ip4 address
667 * @param rmt remote ip4 address
668 * @param lcl_port local port
669 * @param rmt_port remote port
670 * @param proto transport protocol (e.g., tcp, udp)
672 * @return pointer to transport connection, if one is found, 0 otherwise
674 transport_connection_t *
675 session_lookup_connection4 (u32 fib_index, ip4_address_t * lcl,
676 ip4_address_t * rmt, u16 lcl_port, u16 rmt_port,
684 st = session_table_get_for_fib_index (FIB_PROTOCOL_IP4, fib_index);
685 if (PREDICT_FALSE (!st))
688 /* Lookup session amongst established ones */
689 make_v4_ss_kv (&kv4, lcl, rmt, lcl_port, rmt_port, proto);
690 rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
693 s = session_get_from_handle (kv4.value);
694 return tp_vfts[s->session_type].get_connection (s->connection_index,
698 /* If nothing is found, check if any listener is available */
699 s = session_lookup_listener4_i (st, lcl, lcl_port, proto);
701 return tp_vfts[s->session_type].get_listener (s->connection_index);
703 /* Finally, try half-open connections */
704 rv = clib_bihash_search_inline_16_8 (&st->v4_half_open_hash, &kv4);
707 u32 sst = session_type_from_proto_and_ip (proto, 1);
708 return tp_vfts[sst].get_half_open (kv4.value & 0xFFFFFFFF);
714 * Lookup session with ip4 and transport layer information
716 * Lookup logic is identical to that of @ref session_lookup_connection_wt4 but
717 * this returns a session as opposed to a transport connection;
720 session_lookup4 (u32 fib_index, ip4_address_t * lcl, ip4_address_t * rmt,
721 u16 lcl_port, u16 rmt_port, u8 proto)
728 st = session_table_get_for_fib_index (FIB_PROTOCOL_IP4, fib_index);
729 if (PREDICT_FALSE (!st))
732 /* Lookup session amongst established ones */
733 make_v4_ss_kv (&kv4, lcl, rmt, lcl_port, rmt_port, proto);
734 rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
736 return session_get_from_handle (kv4.value);
738 /* If nothing is found, check if any listener is available */
739 if ((s = session_lookup_listener4_i (st, lcl, lcl_port, proto)))
742 /* Finally, try half-open connections */
743 rv = clib_bihash_search_inline_16_8 (&st->v4_half_open_hash, &kv4);
745 return session_get_from_handle (kv4.value);
750 * Lookup connection with ip6 and transport layer information
752 * This is used on the fast path so it needs to be fast. Thereby,
753 * duplication of code and 'hacks' allowed.
755 * The lookup is incremental and returns whenever something is matched. The
757 * - Try to find an established session
758 * - Try to find a fully-formed or local source wildcarded (listener bound to
759 * all interfaces) listener session
760 * - Try to find a half-open connection
763 * @param fib_index index of the fib wherein the connection was received
764 * @param lcl local ip6 address
765 * @param rmt remote ip6 address
766 * @param lcl_port local port
767 * @param rmt_port remote port
768 * @param proto transport protocol (e.g., tcp, udp)
769 * @param thread_index thread index for request
771 * @return pointer to transport connection, if one is found, 0 otherwise
773 transport_connection_t *
774 session_lookup_connection_wt6 (u32 fib_index, ip6_address_t * lcl,
775 ip6_address_t * rmt, u16 lcl_port,
776 u16 rmt_port, u8 proto, u32 thread_index)
783 st = session_table_get_for_fib_index (FIB_PROTOCOL_IP6, fib_index);
784 if (PREDICT_FALSE (!st))
787 make_v6_ss_kv (&kv6, lcl, rmt, lcl_port, rmt_port, proto);
788 rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
791 ASSERT ((u32) (kv6.value >> 32) == thread_index);
792 s = session_get (kv6.value & 0xFFFFFFFFULL, thread_index);
793 return tp_vfts[s->session_type].get_connection (s->connection_index,
797 /* If nothing is found, check if any listener is available */
798 s = session_lookup_listener6_i (st, lcl, lcl_port, proto);
800 return tp_vfts[s->session_type].get_listener (s->connection_index);
802 /* Finally, try half-open connections */
803 rv = clib_bihash_search_inline_48_8 (&st->v6_half_open_hash, &kv6);
806 u32 sst = session_type_from_proto_and_ip (proto, 1);
807 return tp_vfts[sst].get_half_open (kv6.value & 0xFFFFFFFF);
814 * Lookup connection with ip6 and transport layer information
816 * Not optimized. This is used on the fast path so it needs to be fast.
817 * Thereby, duplication of code and 'hacks' allowed. Lookup logic is identical
818 * to that of @ref session_lookup_connection_wt4
820 * @param fib_index index of the fib wherein the connection was received
821 * @param lcl local ip6 address
822 * @param rmt remote ip6 address
823 * @param lcl_port local port
824 * @param rmt_port remote port
825 * @param proto transport protocol (e.g., tcp, udp)
827 * @return pointer to transport connection, if one is found, 0 otherwise
829 transport_connection_t *
830 session_lookup_connection6 (u32 fib_index, ip6_address_t * lcl,
831 ip6_address_t * rmt, u16 lcl_port, u16 rmt_port,
839 st = session_table_get_for_fib_index (FIB_PROTOCOL_IP6, fib_index);
840 if (PREDICT_FALSE (!st))
843 make_v6_ss_kv (&kv6, lcl, rmt, lcl_port, rmt_port, proto);
844 rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
847 s = session_get_from_handle (kv6.value);
848 return tp_vfts[s->session_type].get_connection (s->connection_index,
852 /* If nothing is found, check if any listener is available */
853 s = session_lookup_listener6 (fib_index, lcl, lcl_port, proto);
855 return tp_vfts[s->session_type].get_listener (s->connection_index);
857 /* Finally, try half-open connections */
858 rv = clib_bihash_search_inline_48_8 (&st->v6_half_open_hash, &kv6);
861 u32 sst = session_type_from_proto_and_ip (proto, 1);
862 return tp_vfts[sst].get_half_open (kv6.value & 0xFFFFFFFF);
869 * Lookup session with ip6 and transport layer information
871 * Lookup logic is identical to that of @ref session_lookup_connection_wt6 but
872 * this returns a session as opposed to a transport connection;
875 session_lookup6 (u32 fib_index, ip6_address_t * lcl, ip6_address_t * rmt,
876 u16 lcl_port, u16 rmt_port, u8 proto)
883 st = session_table_get_for_fib_index (FIB_PROTOCOL_IP6, fib_index);
884 if (PREDICT_FALSE (!st))
887 make_v6_ss_kv (&kv6, lcl, rmt, lcl_port, rmt_port, proto);
888 rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
890 return session_get_from_handle (kv6.value);
892 /* If nothing is found, check if any listener is available */
893 if ((s = session_lookup_listener6_i (st, lcl, lcl_port, proto)))
896 /* Finally, try half-open connections */
897 rv = clib_bihash_search_inline_48_8 (&st->v6_half_open_hash, &kv6);
899 return session_get_from_handle (kv6.value);
904 session_lookup_local_listener_make_handle (session_endpoint_t * sep)
906 return ((u64) SESSION_LOCAL_TABLE_PREFIX << 32
907 | (u32) sep->port << 16 | (u32) sep->transport_proto << 8
908 | (u32) sep->is_ip4);
912 session_lookup_local_is_handle (u64 handle)
914 if (handle >> 32 == SESSION_LOCAL_TABLE_PREFIX)
920 session_lookup_local_listener_parse_handle (u64 handle,
921 session_endpoint_t * sep)
923 u32 local_table_handle;
924 if (handle >> 32 != SESSION_LOCAL_TABLE_PREFIX)
926 local_table_handle = handle & 0xFFFFFFFFULL;
927 sep->is_ip4 = local_table_handle & 0xff;
928 local_table_handle >>= 8;
929 sep->transport_proto = local_table_handle & 0xff;
930 sep->port = local_table_handle >> 8;
935 format_ip4_session_lookup_kvp (u8 * s, va_list * args)
937 clib_bihash_kv_16_8_t *kvp = va_arg (*args, clib_bihash_kv_16_8_t *);
938 u32 is_local = va_arg (*args, u32);
939 u8 *app_name, *str = 0;
940 stream_session_t *session;
941 v4_connection_key_t *key = (v4_connection_key_t *) kvp->key;
943 char *proto = key->proto == TRANSPORT_PROTO_TCP ? "T" : "U";
946 session = session_get_from_handle (kvp->value);
947 app_name = application_name_from_index (session->app_index);
948 str = format (0, "[%s] %U:%d->%U:%d", proto, format_ip4_address,
949 &key->src, clib_net_to_host_u16 (key->src_port),
950 format_ip4_address, &key->dst,
951 clib_net_to_host_u16 (key->dst_port));
952 s = format (s, "%-40v%-30v", str, app_name);
956 app_name = application_name_from_index (kvp->value);
957 str = format (0, "[%s] %U:%d", proto, format_ip4_address,
958 &key->src, clib_net_to_host_u16 (key->src_port));
959 s = format (s, "%-30v%-30v", str, app_name);
965 typedef struct _ip4_session_table_show_ctx_t
969 } ip4_session_table_show_ctx_t;
972 ip4_session_table_show (clib_bihash_kv_16_8_t * kvp, void *arg)
974 ip4_session_table_show_ctx_t *ctx = arg;
975 vlib_cli_output (ctx->vm, "%U", format_ip4_session_lookup_kvp, kvp,
981 session_lookup_show_table_entries (vlib_main_t * vm, session_table_t * table,
982 u8 type, u8 is_local)
984 ip4_session_table_show_ctx_t ctx = {
986 .is_local = is_local,
989 vlib_cli_output (vm, "%-40s%-30s", "Session", "Application");
991 vlib_cli_output (vm, "%-30s%-30s", "Listener", "Application");
996 ip4_session_table_walk (&table->v4_session_hash, ip4_session_table_show,
1000 clib_warning ("not supported");
1005 session_lookup_init (void)
1008 * Allocate default table and map it to fib_index 0
1010 session_table_t *st = session_table_alloc ();
1011 vec_validate (fib_index_to_table_index[FIB_PROTOCOL_IP4], 0);
1012 fib_index_to_table_index[FIB_PROTOCOL_IP4][0] = session_table_index (st);
1013 session_table_init (st);
1014 st = session_table_alloc ();
1015 vec_validate (fib_index_to_table_index[FIB_PROTOCOL_IP6], 0);
1016 fib_index_to_table_index[FIB_PROTOCOL_IP6][0] = session_table_index (st);
1017 session_table_init (st);
1021 * fd.io coding-style-patch-verification: ON
1024 * eval: (c-set-style "gnu")