* limitations under the License.
*/
+/**
+ * @file
+ * @brief TCP host stack utilities
+ */
+
#include <vnet/tcp/tcp.h>
#include <vnet/session/session.h>
#include <vnet/fib/fib.h>
#include <vnet/dpo/load_balance.h>
+#include <vnet/dpo/receive_dpo.h>
+#include <vnet/ip/ip6_neighbor.h>
#include <math.h>
tcp_main_t tcp_main;
/* Cleanup local endpoint if this was an active connect */
tepi = transport_endpoint_lookup (&tm->local_endpoints_table, &tc->c_lcl_ip,
- tc->c_lcl_port);
+ clib_net_to_host_u16 (tc->c_lcl_port));
if (tepi != TRANSPORT_ENDPOINT_INVALID_INDEX)
{
tep = pool_elt_at_index (tm->local_endpoints, tepi);
{
TCP_EVT_DBG (TCP_EVT_CLOSE, tc);
- /* Send FIN if needed */
- if (tc->state == TCP_STATE_ESTABLISHED
- || tc->state == TCP_STATE_SYN_RCVD || tc->state == TCP_STATE_CLOSE_WAIT)
- tcp_send_fin (tc);
-
- /* Switch state */
- if (tc->state == TCP_STATE_ESTABLISHED || tc->state == TCP_STATE_SYN_RCVD)
- tc->state = TCP_STATE_FIN_WAIT_1;
- else if (tc->state == TCP_STATE_SYN_SENT)
- tc->state = TCP_STATE_CLOSED;
- else if (tc->state == TCP_STATE_CLOSE_WAIT)
- tc->state = TCP_STATE_LAST_ACK;
+ /* Send/Program FIN if needed and switch state */
+ switch (tc->state)
+ {
+ case TCP_STATE_SYN_SENT:
+ tc->state = TCP_STATE_CLOSED;
+ break;
+ case TCP_STATE_SYN_RCVD:
+ tcp_send_fin (tc);
+ tc->state = TCP_STATE_FIN_WAIT_1;
+ break;
+ case TCP_STATE_ESTABLISHED:
+ if (!stream_session_tx_fifo_max_dequeue (&tc->connection))
+ tcp_send_fin (tc);
+ else
+ tc->flags |= TCP_CONN_FINPNDG;
+ tc->state = TCP_STATE_FIN_WAIT_1;
+ break;
+ case TCP_STATE_CLOSE_WAIT:
+ tcp_send_fin (tc);
+ tc->state = TCP_STATE_LAST_ACK;
+ break;
+ default:
+ clib_warning ("shouldn't be here");
+ }
+
TCP_EVT_DBG (TCP_EVT_STATE_CHANGE, tc);
/* If in CLOSED and WAITCLOSE timer is not set, delete connection now */
/* *INDENT-OFF* */
foreach_ip_interface_address (lm6, ia, sw_if_index, 1 /* unnumbered */ ,
({
- return ip_interface_address_get_address (lm6, ia);
+ ip6_address_t *rv;
+ rv = ip_interface_address_get_address (lm6, ia);
+ /* Trying to use a link-local ip6 src address is a fool's errand */
+ if (!ip6_address_is_link_local_unicast (rv))
+ return rv;
}));
/* *INDENT-ON* */
}
{
tcp_main_t *tm = vnet_get_tcp_main ();
transport_endpoint_t *tep;
- u32 time_now, tei;
+ u32 tei;
u16 min = 1024, max = 65535; /* XXX configurable ? */
- int tries;
+ int tries, limit;
- tries = max - min;
- time_now = tcp_time_now ();
+ limit = max - min;
/* Only support active opens from thread 0 */
ASSERT (vlib_get_thread_index () == 0);
/* Search for first free slot */
- for (; tries >= 0; tries--)
+ for (tries = 0; tries < limit; tries++)
{
u16 port = 0;
/* Find a port in the specified range */
while (1)
{
- port = random_u32 (&time_now) & PORT_MASK;
+ port = random_u32 (&tm->port_allocator_seed) & PORT_MASK;
if (PREDICT_TRUE (port >= min && port < max))
break;
}
else
{
ip6 = ip_interface_get_first_ip (sw_if_index, 0);
+ if (ip6 == 0)
+ {
+ clib_warning ("no routable ip6 addresses on %U",
+ format_vnet_sw_if_index_name, vnet_get_main (),
+ sw_if_index);
+ return -1;
+ }
+
clib_memcpy (&lcl_addr.ip6, ip6, sizeof (*ip6));
}
}
tcp_connection_t *tc;
tc = tcp_half_open_connection_get (conn_index);
+ if (tc)
+ {
+ ASSERT (tc->state == TCP_STATE_SYN_SENT);
+ stream_session_connect_notify (&tc->connection, 1 /* fail */ );
+ }
+ else
+ {
+ tc = tcp_connection_get (conn_index, vlib_get_thread_index ());
+ ASSERT (tc->state == TCP_STATE_SYN_RCVD);
+ }
tc->timers[TCP_TIMER_ESTABLISH] = TCP_TIMER_HANDLE_INVALID;
-
- ASSERT (tc->state == TCP_STATE_SYN_SENT);
- stream_session_connect_notify (&tc->connection, 1 /* fail */ );
tcp_connection_cleanup (tc);
}
vlib_thread_main_t *vtm = vlib_get_thread_main ();
clib_error_t *error = 0;
u32 num_threads;
- int thread, i;
+ int i, thread;
tcp_connection_t *tc __attribute__ ((unused));
+ u32 preallocated_connections_per_thread;
if ((error = vlib_call_init_function (vm, ip_main_init)))
return error;
pi->unformat_pg_edit = unformat_pg_tcp_header;
ip4_register_protocol (IP_PROTOCOL_TCP, tcp4_input_node.index);
+ ip6_register_protocol (IP_PROTOCOL_TCP, tcp6_input_node.index);
/* Register as transport with session layer */
session_register_transport (TRANSPORT_PROTO_TCP, 1, &tcp_proto);
vec_validate (tm->connections, num_threads - 1);
/*
- * Preallocate connections
+ * Preallocate connections. Assume that thread 0 won't
+ * use preallocated threads when running multi-core
*/
- for (thread = 0; thread < num_threads; thread++)
+ if (num_threads == 1)
+ {
+ thread = 0;
+ preallocated_connections_per_thread = tm->preallocated_connections;
+ }
+ else
{
- for (i = 0; i < tm->preallocated_connections; i++)
+ thread = 1;
+ preallocated_connections_per_thread =
+ tm->preallocated_connections / (num_threads - 1);
+ }
+ for (; thread < num_threads; thread++)
+ {
+ for (i = 0; i < preallocated_connections_per_thread; i++)
pool_get (tm->connections[thread], tc);
- for (i = 0; i < tm->preallocated_connections; i++)
+ for (i = 0; i < preallocated_connections_per_thread; i++)
pool_put_index (tm->connections[thread], i);
}
/ TCP_TSTAMP_RESOLUTION;
clib_bihash_init_24_8 (&tm->local_endpoints_table, "local endpoint table",
- 200000 /* $$$$ config parameter nbuckets */ ,
- (64 << 20) /*$$$ config parameter table size */ );
+ 1000000 /* $$$$ config parameter nbuckets */ ,
+ (512 << 20) /*$$$ config parameter table size */ );
+
+ /* Initialize [port-allocator] random number seed */
+ tm->port_allocator_seed = (u32) clib_cpu_time_now ();
+
if (num_threads > 1)
{
clib_spinlock_init (&tm->half_open_lock);
clib_spinlock_init (&tm->local_endpoints_lock);
}
+
+ vec_validate (tm->tx_frames[0], num_threads - 1);
+ vec_validate (tm->tx_frames[1], num_threads - 1);
+
+ tm->bytes_per_buffer = vlib_buffer_free_list_buffer_size
+ (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+
+ vec_validate (tm->time_now, num_threads - 1);
return error;
}
tcp_init (vlib_main_t * vm)
{
tcp_main_t *tm = vnet_get_tcp_main ();
-
- tm->vnet_main = vnet_get_main ();
tm->is_enabled = 0;
-
+ tcp_api_reference ();
return 0;
}
VLIB_INIT_FUNCTION (tcp_init);
-
static clib_error_t *
tcp_config_fn (vlib_main_t * vm, unformat_input_t * input)
{
VLIB_CONFIG_FUNCTION (tcp_config_fn, "tcp");
+
+/**
+ * \brief Configure an ipv4 source address range
+ * @param vm vlib_main_t pointer
+ * @param start first ipv4 address in the source address range
+ * @param end last ipv4 address in the source address range
+ * @param table_id VRF / table ID, 0 for the default FIB
+ * @return 0 if all OK, else an error indication from api_errno.h
+ */
+
+int
+tcp_configure_v4_source_address_range (vlib_main_t * vm,
+ ip4_address_t * start,
+ ip4_address_t * end, u32 table_id)
+{
+ tcp_main_t *tm = vnet_get_tcp_main ();
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 start_host_byte_order, end_host_byte_order;
+ fib_prefix_t prefix;
+ vnet_sw_interface_t *si;
+ fib_node_index_t fei;
+ u32 fib_index = 0;
+ u32 sw_if_index;
+ int rv;
+ int vnet_proxy_arp_add_del (ip4_address_t * lo_addr,
+ ip4_address_t * hi_addr, u32 fib_index,
+ int is_del);
+
+ memset (&prefix, 0, sizeof (prefix));
+
+ fib_index = fib_table_find (FIB_PROTOCOL_IP4, table_id);
+
+ if (fib_index == ~0)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
+ start_host_byte_order = clib_net_to_host_u32 (start->as_u32);
+ end_host_byte_order = clib_net_to_host_u32 (end->as_u32);
+
+ /* sanity check for reversed args or some such */
+ if ((end_host_byte_order - start_host_byte_order) > (10 << 10))
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+
+ /* Lookup the last address, to identify the interface involved */
+ prefix.fp_len = 32;
+ prefix.fp_proto = FIB_PROTOCOL_IP4;
+ memcpy (&prefix.fp_addr.ip4, end, sizeof (ip4_address_t));
+
+ fei = fib_table_lookup (fib_index, &prefix);
+
+ /* Couldn't find route to destination. Bail out. */
+ if (fei == FIB_NODE_INDEX_INVALID)
+ return VNET_API_ERROR_NEXT_HOP_NOT_IN_FIB;
+
+ sw_if_index = fib_entry_get_resolving_interface (fei);
+
+ /* Enable proxy arp on the interface */
+ si = vnet_get_sw_interface (vnm, sw_if_index);
+ si->flags |= VNET_SW_INTERFACE_FLAG_PROXY_ARP;
+
+ /* Configure proxy arp across the range */
+ rv = vnet_proxy_arp_add_del (start, end, fib_index, 0 /* is_del */ );
+
+ if (rv)
+ return rv;
+
+ do
+ {
+ dpo_id_t dpo = DPO_INVALID;
+
+ vec_add1 (tm->ip4_src_addresses, start[0]);
+
+ /* Add local adjacencies for the range */
+
+ receive_dpo_add_or_lock (DPO_PROTO_IP4, ~0 /* sw_if_index */ ,
+ NULL, &dpo);
+ prefix.fp_len = 32;
+ prefix.fp_proto = FIB_PROTOCOL_IP4;
+ prefix.fp_addr.ip4.as_u32 = start->as_u32;
+
+ fib_table_entry_special_dpo_update (fib_index,
+ &prefix,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_EXCLUSIVE, &dpo);
+ dpo_reset (&dpo);
+
+ start_host_byte_order++;
+ start->as_u32 = clib_host_to_net_u32 (start_host_byte_order);
+ }
+ while (start_host_byte_order <= end_host_byte_order);
+
+ return 0;
+}
+
+/**
+ * \brief Configure an ipv6 source address range
+ * @param vm vlib_main_t pointer
+ * @param start first ipv6 address in the source address range
+ * @param end last ipv6 address in the source address range
+ * @param table_id VRF / table ID, 0 for the default FIB
+ * @return 0 if all OK, else an error indication from api_errno.h
+ */
+
+int
+tcp_configure_v6_source_address_range (vlib_main_t * vm,
+ ip6_address_t * start,
+ ip6_address_t * end, u32 table_id)
+{
+ tcp_main_t *tm = vnet_get_tcp_main ();
+ fib_prefix_t prefix;
+ u32 fib_index = 0;
+ fib_node_index_t fei;
+ u32 sw_if_index;
+
+ memset (&prefix, 0, sizeof (prefix));
+
+ fib_index = fib_table_find (FIB_PROTOCOL_IP6, table_id);
+
+ if (fib_index == ~0)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
+ while (1)
+ {
+ int i;
+ ip6_address_t tmp;
+ dpo_id_t dpo = DPO_INVALID;
+
+ /* Remember this address */
+ vec_add1 (tm->ip6_src_addresses, start[0]);
+
+ /* Lookup the prefix, to identify the interface involved */
+ prefix.fp_len = 128;
+ prefix.fp_proto = FIB_PROTOCOL_IP6;
+ memcpy (&prefix.fp_addr.ip6, start, sizeof (ip6_address_t));
+
+ fei = fib_table_lookup (fib_index, &prefix);
+
+ /* Couldn't find route to destination. Bail out. */
+ if (fei == FIB_NODE_INDEX_INVALID)
+ return VNET_API_ERROR_NEXT_HOP_NOT_IN_FIB;
+
+ sw_if_index = fib_entry_get_resolving_interface (fei);
+
+ if (sw_if_index == (u32) ~ 0)
+ return VNET_API_ERROR_NO_MATCHING_INTERFACE;
+
+ /* Add a proxy neighbor discovery entry for this address */
+ ip6_neighbor_proxy_add_del (sw_if_index, start, 0 /* is_del */ );
+
+ /* Add a receive adjacency for this address */
+ receive_dpo_add_or_lock (DPO_PROTO_IP6, ~0 /* sw_if_index */ ,
+ NULL, &dpo);
+
+ fib_table_entry_special_dpo_update (fib_index,
+ &prefix,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_EXCLUSIVE, &dpo);
+ dpo_reset (&dpo);
+
+ /* Done with the entire range? */
+ if (!memcmp (start, end, sizeof (start[0])))
+ break;
+
+ /* Increment the address. DGMS. */
+ tmp = start[0];
+ for (i = 15; i >= 0; i--)
+ {
+ tmp.as_u8[i] += 1;
+ if (tmp.as_u8[i] != 0)
+ break;
+ }
+ start[0] = tmp;
+ }
+ return 0;
+}
+
static clib_error_t *
tcp_src_address (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd_arg)
{
- tcp_main_t *tm = vnet_get_tcp_main ();
ip4_address_t v4start, v4end;
ip6_address_t v6start, v6end;
+ u32 table_id = 0;
int v4set = 0;
int v6set = 0;
+ int rv;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
v4set = 1;
}
else if (unformat (input, "%U - %U", unformat_ip6_address, &v6start,
- unformat_ip4_address, &v6end))
+ unformat_ip6_address, &v6end))
v6set = 1;
else if (unformat (input, "%U", unformat_ip6_address, &v6start))
{
memcpy (&v6end, &v6start, sizeof (v4start));
v6set = 1;
}
+ else if (unformat (input, "fib-table %d", &table_id))
+ ;
else
break;
}
if (v4set)
{
- u32 tmp;
-
- do
+ rv = tcp_configure_v4_source_address_range (vm, &v4start, &v4end,
+ table_id);
+ switch (rv)
{
- vec_add1 (tm->ip4_src_addresses, v4start);
- tmp = clib_net_to_host_u32 (v4start.as_u32);
- tmp++;
- v4start.as_u32 = clib_host_to_net_u32 (tmp);
+ case 0:
+ break;
+
+ case VNET_API_ERROR_NO_SUCH_FIB:
+ return clib_error_return (0, "Invalid table-id %d", table_id);
+
+ case VNET_API_ERROR_INVALID_ARGUMENT:
+ return clib_error_return (0, "Invalid address range %U - %U",
+ format_ip4_address, &v4start,
+ format_ip4_address, &v4end);
+ default:
+ return clib_error_return (0, "error %d", rv);
+ break;
}
- while (clib_host_to_net_u32 (v4start.as_u32) <=
- clib_host_to_net_u32 (v4end.as_u32));
}
if (v6set)
{
- clib_warning ("v6 src address list unimplemented...");
+ rv = tcp_configure_v6_source_address_range (vm, &v6start, &v6end,
+ table_id);
+ switch (rv)
+ {
+ case 0:
+ break;
+
+ case VNET_API_ERROR_NO_SUCH_FIB:
+ return clib_error_return (0, "Invalid table-id %d", table_id);
+
+ default:
+ return clib_error_return (0, "error %d", rv);
+ break;
+ }
}
return 0;
}
Code Review / vpp.git / blobdiff