tc->rto_boff = 0;
tcp_update_rto (tc);
tc->snd_rxt_ts = 0;
+ tc->snd_nxt = tc->snd_una_max;
tcp_recovery_off (tc);
TCP_EVT_DBG (TCP_EVT_CC_EVT, tc, 3);
}
tc->cc_algo->recovered (tc);
tc->snd_rxt_bytes = 0;
tc->rcv_dupacks = 0;
+ tc->snd_nxt = tc->snd_una_max;
tcp_fastrecovery_off (tc);
tcp_fastrecovery_1_smss_off (tc);
TCP_EVT_DBG (TCP_EVT_CC_EVT, tc, 3);
return TCP_ERROR_PURE_ACK;
}
- written = stream_session_enqueue_data (&tc->connection, b, 0,
- 1 /* queue event */ , 1);
+ written = session_enqueue_stream_connection (&tc->connection, b, 0,
+ 1 /* queue event */ , 1);
TCP_EVT_DBG (TCP_EVT_INPUT, tc, 0, data_len, written);
}
/* Enqueue out-of-order data with relative offset */
- rv = stream_session_enqueue_data (&tc->connection, b,
- vnet_buffer (b)->tcp.seq_number -
- tc->rcv_nxt, 0 /* queue event */ , 0);
+ rv = session_enqueue_stream_connection (&tc->connection, b,
+ vnet_buffer (b)->tcp.seq_number -
+ tc->rcv_nxt, 0 /* queue event */ ,
+ 0);
/* Nothing written */
if (rv)
ooo_segment_t *newest;
u32 start, end;
- s0 = stream_session_get (tc->c_s_index, tc->c_thread_index);
+ s0 = session_get (tc->c_s_index, tc->c_thread_index);
/* Get the newest segment from the fifo */
newest = svm_fifo_newest_ooo_segment (s0->server_rx_fifo);
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
tcp_rx_trace_t *t = va_arg (*args, tcp_rx_trace_t *);
- uword indent = format_get_indent (s);
+ u32 indent = format_get_indent (s);
s = format (s, "%U\n%U%U",
format_tcp_header, &t->tcp_header, 128,
}
always_inline void
-tcp_established_inc_counter (vlib_main_t * vm, u8 is_ip4, u8 evt, u8 val)
+tcp_node_inc_counter (vlib_main_t * vm, u32 tcp4_node, u32 tcp6_node,
+ u8 is_ip4, u8 evt, u8 val)
{
if (PREDICT_TRUE (!val))
return;
if (is_ip4)
- vlib_node_increment_counter (vm, tcp4_established_node.index, evt, val);
+ vlib_node_increment_counter (vm, tcp4_node, evt, val);
else
- vlib_node_increment_counter (vm, tcp6_established_node.index, evt, val);
+ vlib_node_increment_counter (vm, tcp6_node, evt, val);
}
always_inline uword
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- errors = session_manager_flush_enqueue_events (my_thread_index);
- tcp_established_inc_counter (vm, is_ip4, TCP_ERROR_EVENT_FIFO_FULL, errors);
+ errors = session_manager_flush_enqueue_events (TRANSPORT_PROTO_TCP,
+ my_thread_index);
+ tcp_node_inc_counter (vm, is_ip4, tcp4_established_node.index,
+ tcp6_established_node.index,
+ TCP_ERROR_EVENT_FIFO_FULL, errors);
tcp_flush_frame_to_output (vm, my_thread_index, is_ip4);
return from_frame->n_vectors;
static u8
tcp_lookup_is_valid (tcp_connection_t * tc, tcp_header_t * hdr)
{
- transport_connection_t *tmp;
+ transport_connection_t *tmp = 0;
+ u64 handle;
+
if (!tc)
return 1;
if (!is_valid)
{
- if ((tmp =
- stream_session_half_open_lookup (&tc->c_lcl_ip, &tc->c_rmt_ip,
- tc->c_lcl_port, tc->c_rmt_port,
- tc->c_transport_proto)))
+ handle = session_lookup_half_open_handle (&tc->connection);
+ tmp = session_lookup_half_open_connection (handle & 0xFFFFFFFF,
+ tc->c_proto, tc->c_is_ip4);
+
+ if (tmp)
{
if (tmp->lcl_port == hdr->dst_port
&& tmp->rmt_port == hdr->src_port)
{
- clib_warning ("half-open is valid!");
+ TCP_DBG ("half-open is valid!");
}
}
}
* Lookup transport connection
*/
static tcp_connection_t *
-tcp_lookup_connection (vlib_buffer_t * b, u8 thread_index, u8 is_ip4)
+tcp_lookup_connection (u32 fib_index, vlib_buffer_t * b, u8 thread_index,
+ u8 is_ip4)
{
tcp_header_t *tcp;
transport_connection_t *tconn;
ip4_header_t *ip4;
ip4 = vlib_buffer_get_current (b);
tcp = ip4_next_header (ip4);
- tconn = stream_session_lookup_transport_wt4 (&ip4->dst_address,
- &ip4->src_address,
- tcp->dst_port,
- tcp->src_port,
- SESSION_TYPE_IP4_TCP,
- thread_index);
+ tconn = session_lookup_connection_wt4 (fib_index,
+ &ip4->dst_address,
+ &ip4->src_address,
+ tcp->dst_port,
+ tcp->src_port,
+ TRANSPORT_PROTO_TCP,
+ thread_index);
tc = tcp_get_connection_from_transport (tconn);
ASSERT (tcp_lookup_is_valid (tc, tcp));
}
ip6_header_t *ip6;
ip6 = vlib_buffer_get_current (b);
tcp = ip6_next_header (ip6);
- tconn = stream_session_lookup_transport_wt6 (&ip6->dst_address,
- &ip6->src_address,
- tcp->dst_port,
- tcp->src_port,
- SESSION_TYPE_IP6_TCP,
- thread_index);
+ tconn = session_lookup_connection_wt6 (fib_index,
+ &ip6->dst_address,
+ &ip6->src_address,
+ tcp->dst_port,
+ tcp->src_port,
+ TRANSPORT_PROTO_TCP,
+ thread_index);
tc = tcp_get_connection_from_transport (tconn);
ASSERT (tcp_lookup_is_valid (tc, tcp));
}
if (PREDICT_FALSE (tc0->flags & TCP_CONN_HALF_OPEN_DONE))
{
/* Make sure the connection actually exists */
- ASSERT (tcp_lookup_connection (b0, my_thread_index, is_ip4));
+ ASSERT (tcp_lookup_connection (tc0->c_fib_index, b0,
+ my_thread_index, is_ip4));
goto drop;
}
/* Notify app that we have connection. If session layer can't
* allocate session send reset */
- if (stream_session_connect_notify (&new_tc0->connection, 0))
+ if (session_stream_connect_notify (&new_tc0->connection, 0))
{
clib_warning ("connect notify fail");
tcp_send_reset_w_pkt (new_tc0, b0, is_ip4);
new_tc0->state = TCP_STATE_SYN_RCVD;
/* Notify app that we have connection */
- if (stream_session_connect_notify (&new_tc0->connection, 0))
+ if (session_stream_connect_notify (&new_tc0->connection, 0))
{
tcp_connection_cleanup (new_tc0);
tcp_send_reset_w_pkt (tc0, b0, is_ip4);
drop:
b0->error = error0 ? node->errors[error0] : 0;
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ if (PREDICT_FALSE
+ ((b0->flags & VLIB_BUFFER_IS_TRACED) && tcp0 != 0))
{
t0 = vlib_add_trace (vm, node, b0, sizeof (*t0));
clib_memcpy (&t0->tcp_header, tcp0, sizeof (t0->tcp_header));
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- errors = session_manager_flush_enqueue_events (my_thread_index);
- if (errors)
- {
- if (is_ip4)
- vlib_node_increment_counter (vm, tcp4_established_node.index,
- TCP_ERROR_EVENT_FIFO_FULL, errors);
- else
- vlib_node_increment_counter (vm, tcp6_established_node.index,
- TCP_ERROR_EVENT_FIFO_FULL, errors);
- }
-
+ errors = session_manager_flush_enqueue_events (TRANSPORT_PROTO_TCP,
+ my_thread_index);
+ tcp_node_inc_counter (vm, is_ip4, tcp4_syn_sent_node.index,
+ tcp6_syn_sent_node.index,
+ TCP_ERROR_EVENT_FIFO_FULL, errors);
return from_frame->n_vectors;
}
VLIB_NODE_FUNCTION_MULTIARCH (tcp6_syn_sent_node, tcp6_syn_sent_rcv);
+vlib_node_registration_t tcp4_rcv_process_node;
+vlib_node_registration_t tcp6_rcv_process_node;
+
/**
* Handles reception for all states except LISTEN, SYN-SENT and ESTABLISHED
* as per RFC793 p. 64
if (CLIB_DEBUG)
{
tcp_connection_t *tmp;
- tmp = tcp_lookup_connection (b0, my_thread_index, is_ip4);
+ tmp =
+ tcp_lookup_connection (tc0->c_fib_index, b0, my_thread_index,
+ is_ip4);
if (tmp->state != tc0->state)
{
clib_warning ("state changed");
*/
if (!tcp_rcv_ack_is_acceptable (tc0, b0))
{
- clib_warning ("connection not accepted");
+ TCP_DBG ("connection not accepted");
tcp_send_reset_w_pkt (tc0, b0, is_ip4);
goto drop;
}
tc0->state = TCP_STATE_TIME_WAIT;
TCP_EVT_DBG (TCP_EVT_STATE_CHANGE, tc0);
- tcp_timer_update (tc0, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
+ tcp_timer_update (tc0, TCP_TIMER_WAITCLOSE, TCP_TIMEWAIT_TIME);
goto drop;
break;
* delete the TCB, enter the CLOSED state, and return. */
if (!tcp_rcv_ack_is_acceptable (tc0, b0))
- goto drop;
+ {
+ error0 = TCP_ERROR_ACK_INVALID;
+ goto drop;
+ }
tc0->snd_una = vnet_buffer (b0)->tcp.ack_number;
- /* Apparently our FIN was lost */
- if (is_fin0)
+ /* Apparently our ACK for the peer's FIN was lost */
+ if (is_fin0 && tc0->snd_una != tc0->snd_una_max)
{
tcp_send_fin (tc0);
goto drop;
tc0->state = TCP_STATE_CLOSED;
TCP_EVT_DBG (TCP_EVT_STATE_CHANGE, tc0);
+ tcp_connection_timers_reset (tc0);
/* Don't delete the connection/session yet. Instead, wait a
* reasonable amount of time until the pipes are cleared. In
* particular, this makes sure that we won't have dead sessions
* when processing events on the tx path */
- tcp_timer_update (tc0, TCP_TIMER_WAITCLOSE, TCP_CLEANUP_TIME);
- tcp_retransmit_timer_reset (tc0);
+ tcp_timer_set (tc0, TCP_TIMER_WAITCLOSE, TCP_CLEANUP_TIME);
goto drop;
goto drop;
tcp_make_ack (tc0, b0);
- tcp_timer_update (tc0, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
+ next0 = tcp_next_output (is_ip4);
+ tcp_timer_update (tc0, TCP_TIMER_WAITCLOSE, TCP_TIMEWAIT_TIME);
goto drop;
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- errors = session_manager_flush_enqueue_events (my_thread_index);
- if (errors)
- {
- if (is_ip4)
- vlib_node_increment_counter (vm, tcp4_established_node.index,
- TCP_ERROR_EVENT_FIFO_FULL, errors);
- else
- vlib_node_increment_counter (vm, tcp6_established_node.index,
- TCP_ERROR_EVENT_FIFO_FULL, errors);
- }
+ errors = session_manager_flush_enqueue_events (TRANSPORT_PROTO_TCP,
+ my_thread_index);
+ tcp_node_inc_counter (vm, is_ip4, tcp4_rcv_process_node.index,
+ tcp6_rcv_process_node.index,
+ TCP_ERROR_EVENT_FIFO_FULL, errors);
return from_frame->n_vectors;
}
{
u32 n_left_from, next_index, *from, *to_next;
u32 my_thread_index = vm->thread_index;
- u8 sst = is_ip4 ? SESSION_TYPE_IP4_TCP : SESSION_TYPE_IP6_TCP;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
/* 3. check for a SYN (did that already) */
/* Make sure connection wasn't just created */
- child0 = tcp_lookup_connection (b0, my_thread_index, is_ip4);
+ child0 =
+ tcp_lookup_connection (lc0->c_fib_index, b0, my_thread_index,
+ is_ip4);
if (PREDICT_FALSE (child0->state != TCP_STATE_LISTEN))
{
error0 = TCP_ERROR_CREATE_EXISTS;
sizeof (ip6_address_t));
}
- if (stream_session_accept (&child0->connection, lc0->c_s_index, sst,
+ if (stream_session_accept (&child0->connection, lc0->c_s_index,
0 /* notify */ ))
{
clib_warning ("session accept fail");
while (n_left_from > 0 && n_left_to_next > 0)
{
int n_advance_bytes0, n_data_bytes0;
- u32 bi0;
+ u32 bi0, fib_index0;
vlib_buffer_t *b0;
tcp_header_t *tcp0 = 0;
tcp_connection_t *tc0;
b0 = vlib_get_buffer (vm, bi0);
vnet_buffer (b0)->tcp.flags = 0;
+ fib_index0 = vnet_buffer (b0)->ip.fib_index;
/* Checksum computed by ipx_local no need to compute again */
+ tcp_header_bytes (tcp0));
n_data_bytes0 = clib_net_to_host_u16 (ip40->length)
- n_advance_bytes0;
- tconn = stream_session_lookup_transport_wt4 (&ip40->dst_address,
- &ip40->src_address,
- tcp0->dst_port,
- tcp0->src_port,
- SESSION_TYPE_IP4_TCP,
- my_thread_index);
+ tconn = session_lookup_connection_wt4 (fib_index0,
+ &ip40->dst_address,
+ &ip40->src_address,
+ tcp0->dst_port,
+ tcp0->src_port,
+ TRANSPORT_PROTO_TCP,
+ my_thread_index);
tc0 = tcp_get_connection_from_transport (tconn);
ASSERT (tcp_lookup_is_valid (tc0, tcp0));
}
n_data_bytes0 = clib_net_to_host_u16 (ip60->payload_length)
- n_advance_bytes0;
n_advance_bytes0 += sizeof (ip60[0]);
- tconn = stream_session_lookup_transport_wt6 (&ip60->dst_address,
- &ip60->src_address,
- tcp0->dst_port,
- tcp0->src_port,
- SESSION_TYPE_IP6_TCP,
- my_thread_index);
+ tconn = session_lookup_connection_wt6 (fib_index0,
+ &ip60->dst_address,
+ &ip60->src_address,
+ tcp0->dst_port,
+ tcp0->src_port,
+ TRANSPORT_PROTO_TCP,
+ my_thread_index);
tc0 = tcp_get_connection_from_transport (tconn);
ASSERT (tcp_lookup_is_valid (tc0, tcp0));
}
Code Review / vpp.git / blobdiff