*/
#include <vnet/session/session.h>
+#include <vnet/session/session_debug.h>
+#include <vnet/session/application.h>
#include <vlibmemory/api.h>
#include <vnet/dpo/load_balance.h>
#include <vnet/fib/ip4_fib.h>
-#include <vnet/session/application.h>
#include <vnet/tcp/tcp.h>
-#include <vnet/session/session_debug.h>
-
-/**
- * Per-type vector of transport protocol virtual function tables
- */
-static transport_proto_vft_t *tp_vfts;
session_manager_main_t session_manager_main;
-
-transport_connection_t *
-stream_session_lookup_half_open (transport_connection_t * tc)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv4_t kv4;
- int rv;
- if (tc->is_ip4)
- {
- make_v4_ss_kv_from_tc (&kv4, tc);
- rv = clib_bihash_search_inline_16_8 (&smm->v4_half_open_hash, &kv4);
- if (rv == 0)
- return tp_vfts[tc->proto].get_half_open (kv4.value & 0xFFFFFFFFULL);
- }
- return 0;
-}
-
-/*
- * Session lookup key; (src-ip, dst-ip, src-port, dst-port, session-type)
- * Value: (owner thread index << 32 | session_index);
- */
-void
-stream_session_table_add_for_tc (transport_connection_t * tc, u64 value)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv4_t kv4;
- session_kv6_t kv6;
-
- switch (tc->proto)
- {
- case SESSION_TYPE_IP4_UDP:
- case SESSION_TYPE_IP4_TCP:
- make_v4_ss_kv_from_tc (&kv4, tc);
- kv4.value = value;
- clib_bihash_add_del_16_8 (&smm->v4_session_hash, &kv4, 1 /* is_add */ );
- break;
- case SESSION_TYPE_IP6_UDP:
- case SESSION_TYPE_IP6_TCP:
- make_v6_ss_kv_from_tc (&kv6, tc);
- kv6.value = value;
- clib_bihash_add_del_48_8 (&smm->v6_session_hash, &kv6, 1 /* is_add */ );
- break;
- default:
- clib_warning ("Session type not supported");
- ASSERT (0);
- }
-}
-
-void
-stream_session_table_add (session_manager_main_t * smm, stream_session_t * s,
- u64 value)
-{
- transport_connection_t *tc;
-
- tc = tp_vfts[s->session_type].get_connection (s->connection_index,
- s->thread_index);
- stream_session_table_add_for_tc (tc, value);
-}
-
-static void
-stream_session_half_open_table_add (session_type_t sst,
- transport_connection_t * tc, u64 value)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv4_t kv4;
- session_kv6_t kv6;
-
- switch (sst)
- {
- case SESSION_TYPE_IP4_UDP:
- case SESSION_TYPE_IP4_TCP:
- make_v4_ss_kv_from_tc (&kv4, tc);
- kv4.value = value;
- clib_bihash_add_del_16_8 (&smm->v4_half_open_hash, &kv4,
- 1 /* is_add */ );
- break;
- case SESSION_TYPE_IP6_UDP:
- case SESSION_TYPE_IP6_TCP:
- make_v6_ss_kv_from_tc (&kv6, tc);
- kv6.value = value;
- clib_bihash_add_del_48_8 (&smm->v6_half_open_hash, &kv6,
- 1 /* is_add */ );
- break;
- default:
- clib_warning ("Session type not supported");
- ASSERT (0);
- }
-}
-
-int
-stream_session_table_del_for_tc (transport_connection_t * tc)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv4_t kv4;
- session_kv6_t kv6;
- switch (tc->proto)
- {
- case SESSION_TYPE_IP4_UDP:
- case SESSION_TYPE_IP4_TCP:
- make_v4_ss_kv_from_tc (&kv4, tc);
- return clib_bihash_add_del_16_8 (&smm->v4_session_hash, &kv4,
- 0 /* is_add */ );
- break;
- case SESSION_TYPE_IP6_UDP:
- case SESSION_TYPE_IP6_TCP:
- make_v6_ss_kv_from_tc (&kv6, tc);
- return clib_bihash_add_del_48_8 (&smm->v6_session_hash, &kv6,
- 0 /* is_add */ );
- break;
- default:
- clib_warning ("Session type not supported");
- ASSERT (0);
- }
-
- return 0;
-}
-
-static int
-stream_session_table_del (session_manager_main_t * smm, stream_session_t * s)
-{
- transport_connection_t *ts;
-
- ts = tp_vfts[s->session_type].get_connection (s->connection_index,
- s->thread_index);
- return stream_session_table_del_for_tc (ts);
-}
-
-static void
-stream_session_half_open_table_del (session_manager_main_t * smm, u8 sst,
- transport_connection_t * tc)
-{
- session_kv4_t kv4;
- session_kv6_t kv6;
-
- switch (sst)
- {
- case SESSION_TYPE_IP4_UDP:
- case SESSION_TYPE_IP4_TCP:
- make_v4_ss_kv_from_tc (&kv4, tc);
- clib_bihash_add_del_16_8 (&smm->v4_half_open_hash, &kv4,
- 0 /* is_add */ );
- break;
- case SESSION_TYPE_IP6_UDP:
- case SESSION_TYPE_IP6_TCP:
- make_v6_ss_kv_from_tc (&kv6, tc);
- clib_bihash_add_del_48_8 (&smm->v6_half_open_hash, &kv6,
- 0 /* is_add */ );
- break;
- default:
- clib_warning ("Session type not supported");
- ASSERT (0);
- }
-}
-
-stream_session_t *
-stream_session_lookup_listener4 (ip4_address_t * lcl, u16 lcl_port, u8 proto)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv4_t kv4;
- int rv;
-
- make_v4_listener_kv (&kv4, lcl, lcl_port, proto);
- rv = clib_bihash_search_inline_16_8 (&smm->v4_session_hash, &kv4);
- if (rv == 0)
- return pool_elt_at_index (smm->listen_sessions[proto], (u32) kv4.value);
-
- /* Zero out the lcl ip */
- kv4.key[0] = 0;
- rv = clib_bihash_search_inline_16_8 (&smm->v4_session_hash, &kv4);
- if (rv == 0)
- return pool_elt_at_index (smm->listen_sessions[proto], kv4.value);
-
- return 0;
-}
-
-/** Looks up a session based on the 5-tuple passed as argument.
- *
- * First it tries to find an established session, if this fails, it tries
- * finding a listener session if this fails, it tries a lookup with a
- * wildcarded local source (listener bound to all interfaces)
- */
-stream_session_t *
-stream_session_lookup4 (ip4_address_t * lcl, ip4_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv4_t kv4;
- stream_session_t *s;
- int rv;
-
- /* Lookup session amongst established ones */
- make_v4_ss_kv (&kv4, lcl, rmt, lcl_port, rmt_port, proto);
- rv = clib_bihash_search_inline_16_8 (&smm->v4_session_hash, &kv4);
- if (rv == 0)
- return stream_session_get_from_handle (kv4.value);
-
- /* If nothing is found, check if any listener is available */
- if ((s = stream_session_lookup_listener4 (lcl, lcl_port, proto)))
- return s;
-
- /* Finally, try half-open connections */
- rv = clib_bihash_search_inline_16_8 (&smm->v4_half_open_hash, &kv4);
- if (rv == 0)
- return stream_session_get_from_handle (kv4.value);
- return 0;
-}
-
-stream_session_t *
-stream_session_lookup_listener6 (ip6_address_t * lcl, u16 lcl_port, u8 proto)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv6_t kv6;
- int rv;
-
- make_v6_listener_kv (&kv6, lcl, lcl_port, proto);
- rv = clib_bihash_search_inline_48_8 (&smm->v6_session_hash, &kv6);
- if (rv == 0)
- return pool_elt_at_index (smm->listen_sessions[proto], kv6.value);
-
- /* Zero out the lcl ip */
- kv6.key[0] = kv6.key[1] = 0;
- rv = clib_bihash_search_inline_48_8 (&smm->v6_session_hash, &kv6);
- if (rv == 0)
- return pool_elt_at_index (smm->listen_sessions[proto], kv6.value);
-
- return 0;
-}
-
-/* Looks up a session based on the 5-tuple passed as argument.
- * First it tries to find an established session, if this fails, it tries
- * finding a listener session if this fails, it tries a lookup with a
- * wildcarded local source (listener bound to all interfaces) */
-stream_session_t *
-stream_session_lookup6 (ip6_address_t * lcl, ip6_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto)
-{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
- session_kv6_t kv6;
- stream_session_t *s;
- int rv;
-
- make_v6_ss_kv (&kv6, lcl, rmt, lcl_port, rmt_port, proto);
- rv = clib_bihash_search_inline_48_8 (&smm->v6_session_hash, &kv6);
- if (rv == 0)
- return stream_session_get_from_handle (kv6.value);
-
- /* If nothing is found, check if any listener is available */
- if ((s = stream_session_lookup_listener6 (lcl, lcl_port, proto)))
- return s;
-
- /* Finally, try half-open connections */
- rv = clib_bihash_search_inline_48_8 (&smm->v6_half_open_hash, &kv6);
- if (rv == 0)
- return stream_session_get_from_handle (kv6.value);
- return 0;
-}
-
-stream_session_t *
-stream_session_lookup_listener (ip46_address_t * lcl, u16 lcl_port, u8 proto)
-{
- switch (proto)
- {
- case SESSION_TYPE_IP4_UDP:
- case SESSION_TYPE_IP4_TCP:
- return stream_session_lookup_listener4 (&lcl->ip4, lcl_port, proto);
- break;
- case SESSION_TYPE_IP6_UDP:
- case SESSION_TYPE_IP6_TCP:
- return stream_session_lookup_listener6 (&lcl->ip6, lcl_port, proto);
- break;
- }
- return 0;
-}
-
-static u64
-stream_session_half_open_lookup (session_manager_main_t * smm,
- ip46_address_t * lcl, ip46_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto)
-{
- session_kv4_t kv4;
- session_kv6_t kv6;
- int rv;
-
- switch (proto)
- {
- case SESSION_TYPE_IP4_UDP:
- case SESSION_TYPE_IP4_TCP:
- make_v4_ss_kv (&kv4, &lcl->ip4, &rmt->ip4, lcl_port, rmt_port, proto);
- rv = clib_bihash_search_inline_16_8 (&smm->v4_half_open_hash, &kv4);
-
- if (rv == 0)
- return kv4.value;
-
- return (u64) ~ 0;
- break;
- case SESSION_TYPE_IP6_UDP:
- case SESSION_TYPE_IP6_TCP:
- make_v6_ss_kv (&kv6, &lcl->ip6, &rmt->ip6, lcl_port, rmt_port, proto);
- rv = clib_bihash_search_inline_48_8 (&smm->v6_half_open_hash, &kv6);
-
- if (rv == 0)
- return kv6.value;
-
- return (u64) ~ 0;
- break;
- }
- return 0;
-}
-
-transport_connection_t *
-stream_session_lookup_transport_wt4 (ip4_address_t * lcl, ip4_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto,
- u32 my_thread_index)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv4_t kv4;
- stream_session_t *s;
- int rv;
-
- /* Lookup session amongst established ones */
- make_v4_ss_kv (&kv4, lcl, rmt, lcl_port, rmt_port, proto);
- rv = clib_bihash_search_inline_16_8 (&smm->v4_session_hash, &kv4);
- if (rv == 0)
- {
- s = stream_session_get_tsi (kv4.value, my_thread_index);
-
- return tp_vfts[s->session_type].get_connection (s->connection_index,
- my_thread_index);
- }
-
- /* If nothing is found, check if any listener is available */
- s = stream_session_lookup_listener4 (lcl, lcl_port, proto);
- if (s)
- return tp_vfts[s->session_type].get_listener (s->connection_index);
-
- /* Finally, try half-open connections */
- rv = clib_bihash_search_inline_16_8 (&smm->v4_half_open_hash, &kv4);
- if (rv == 0)
- return tp_vfts[proto].get_half_open (kv4.value & 0xFFFFFFFF);
- return 0;
-}
-
-transport_connection_t *
-stream_session_lookup_transport4 (ip4_address_t * lcl, ip4_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto)
-{
- session_manager_main_t *smm = &session_manager_main;
- session_kv4_t kv4;
- stream_session_t *s;
- int rv;
-
- /* Lookup session amongst established ones */
- make_v4_ss_kv (&kv4, lcl, rmt, lcl_port, rmt_port, proto);
- rv = clib_bihash_search_inline_16_8 (&smm->v4_session_hash, &kv4);
- if (rv == 0)
- {
- s = stream_session_get_from_handle (kv4.value);
- return tp_vfts[s->session_type].get_connection (s->connection_index,
- s->thread_index);
- }
-
- /* If nothing is found, check if any listener is available */
- s = stream_session_lookup_listener4 (lcl, lcl_port, proto);
- if (s)
- return tp_vfts[s->session_type].get_listener (s->connection_index);
-
- /* Finally, try half-open connections */
- rv = clib_bihash_search_inline_16_8 (&smm->v4_half_open_hash, &kv4);
- if (rv == 0)
- return tp_vfts[proto].get_half_open (kv4.value & 0xFFFFFFFF);
- return 0;
-}
-
-transport_connection_t *
-stream_session_lookup_transport_wt6 (ip6_address_t * lcl, ip6_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto,
- u32 my_thread_index)
-{
- session_manager_main_t *smm = &session_manager_main;
- stream_session_t *s;
- session_kv6_t kv6;
- int rv;
-
- make_v6_ss_kv (&kv6, lcl, rmt, lcl_port, rmt_port, proto);
- rv = clib_bihash_search_inline_48_8 (&smm->v6_session_hash, &kv6);
- if (rv == 0)
- {
- s = stream_session_get_tsi (kv6.value, my_thread_index);
-
- return tp_vfts[s->session_type].get_connection (s->connection_index,
- my_thread_index);
- }
-
- /* If nothing is found, check if any listener is available */
- s = stream_session_lookup_listener6 (lcl, lcl_port, proto);
- if (s)
- return tp_vfts[s->session_type].get_listener (s->connection_index);
-
- /* Finally, try half-open connections */
- rv = clib_bihash_search_inline_48_8 (&smm->v6_half_open_hash, &kv6);
- if (rv == 0)
- return tp_vfts[proto].get_half_open (kv6.value & 0xFFFFFFFF);
-
- return 0;
-}
-
-transport_connection_t *
-stream_session_lookup_transport6 (ip6_address_t * lcl, ip6_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto)
-{
- session_manager_main_t *smm = &session_manager_main;
- stream_session_t *s;
- session_kv6_t kv6;
- int rv;
-
- make_v6_ss_kv (&kv6, lcl, rmt, lcl_port, rmt_port, proto);
- rv = clib_bihash_search_inline_48_8 (&smm->v6_session_hash, &kv6);
- if (rv == 0)
- {
- s = stream_session_get_from_handle (kv6.value);
- return tp_vfts[s->session_type].get_connection (s->connection_index,
- s->thread_index);
- }
-
- /* If nothing is found, check if any listener is available */
- s = stream_session_lookup_listener6 (lcl, lcl_port, proto);
- if (s)
- return tp_vfts[s->session_type].get_listener (s->connection_index);
-
- /* Finally, try half-open connections */
- rv = clib_bihash_search_inline_48_8 (&smm->v6_half_open_hash, &kv6);
- if (rv == 0)
- return tp_vfts[proto].get_half_open (kv6.value & 0xFFFFFFFF);
-
- return 0;
-}
+extern transport_proto_vft_t *tp_vfts;
int
stream_session_create_i (segment_manager_t * sm, transport_connection_t * tc,
stream_session_connect_notify (transport_connection_t * tc, u8 sst,
u8 is_fail)
{
- session_manager_main_t *smm = &session_manager_main;
application_t *app;
stream_session_t *new_s = 0;
u64 handle;
u32 api_context = 0;
int error = 0;
- handle = stream_session_half_open_lookup (smm, &tc->lcl_ip, &tc->rmt_ip,
- tc->lcl_port, tc->rmt_port,
- tc->proto);
+ handle = stream_session_half_open_lookup_handle (&tc->lcl_ip, &tc->rmt_ip,
+ tc->lcl_port, tc->rmt_port,
+ tc->proto);
if (handle == HALF_OPEN_LOOKUP_INVALID_VALUE)
{
clib_warning ("This can't be good!");
}
/* Cleanup session lookup */
- stream_session_half_open_table_del (smm, sst, tc);
+ stream_session_half_open_table_del (sst, tc);
return error;
}
int rv;
/* Delete from the main lookup table. */
- if ((rv = stream_session_table_del (smm, s)))
+ if ((rv = stream_session_table_del (s)))
clib_warning ("hash delete error, rv %d", rv);
/* Cleanup fifo segments */
*/
int
stream_session_open (u32 app_index, session_type_t st,
- transport_endpoint_t * tep,
+ transport_endpoint_t * rmt,
transport_connection_t ** res)
{
transport_connection_t *tc;
int rv;
u64 handle;
- rv = tp_vfts[st].open (&tep->ip, tep->port);
+ rv = tp_vfts[st].open (rmt);
if (rv < 0)
{
clib_warning ("Transport failed to open connection.");
u32 tci;
/* Transport bind/listen */
- tci = tp_vfts[s->session_type].bind (s->session_index, &tep->ip, tep->port);
+ tci = tp_vfts[s->session_type].bind (s->session_index, tep);
if (tci == (u32) ~ 0)
return -1;
void
stream_session_cleanup (stream_session_t * s)
{
- session_manager_main_t *smm = &session_manager_main;
int rv;
s->session_state = SESSION_STATE_CLOSED;
/* Delete from the main lookup table to avoid more enqueues */
- rv = stream_session_table_del (smm, s);
+ rv = stream_session_table_del (s);
if (rv)
clib_warning ("hash delete error, rv %d", rv);
tp_vfts[s->session_type].cleanup (s->connection_index, s->thread_index);
}
-void
-session_register_transport (u8 type, const transport_proto_vft_t * vft)
-{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
-
- vec_validate (tp_vfts, type);
- tp_vfts[type] = *vft;
-
- /* If an offset function is provided, then peek instead of dequeue */
- smm->session_tx_fns[type] =
- (vft->tx_fifo_offset) ? session_tx_fifo_peek_and_snd :
- session_tx_fifo_dequeue_and_snd;
-}
-
-transport_proto_vft_t *
-session_get_transport_vft (u8 type)
-{
- if (type >= vec_len (tp_vfts))
- return 0;
- return &tp_vfts[type];
-}
-
/**
* Allocate vpp event queue (once) per worker thread
*/
for (i = 0; i < smm->preallocated_sessions; i++)
pool_put_index (smm->sessions[0], i);
- clib_bihash_init_16_8 (&smm->v4_session_hash, "v4 session table",
- 200000 /* $$$$ config parameter nbuckets */ ,
- (64 << 20) /*$$$ config parameter table size */ );
- clib_bihash_init_48_8 (&smm->v6_session_hash, "v6 session table",
- 200000 /* $$$$ config parameter nbuckets */ ,
- (64 << 20) /*$$$ config parameter table size */ );
-
- clib_bihash_init_16_8 (&smm->v4_half_open_hash, "v4 half-open table",
- 200000 /* $$$$ config parameter nbuckets */ ,
- (64 << 20) /*$$$ config parameter table size */ );
- clib_bihash_init_48_8 (&smm->v6_half_open_hash, "v6 half-open table",
- 200000 /* $$$$ config parameter nbuckets */ ,
- (64 << 20) /*$$$ config parameter table size */ );
+ session_lookup_init ();
smm->is_enabled = 1;
session_manager_main_init (vlib_main_t * vm)
{
session_manager_main_t *smm = &session_manager_main;
-
- smm->vlib_main = vm;
- smm->vnet_main = vnet_get_main ();
smm->is_enabled = 0;
-
return 0;
}
Code Review / vpp.git / blobdiff