#define tcp_next_drop(is_ip4) (is_ip4 ? TCP_NEXT_DROP4 \
: TCP_NEXT_DROP6)
-vlib_node_registration_t tcp4_established_node;
-vlib_node_registration_t tcp6_established_node;
-
/**
* Validate segment sequence number. As per RFC793:
*
/* If our window is 0 and the packet is in sequence, let it pass
* through for ack processing. It should be dropped later. */
- if (tc0->rcv_wnd == 0
+ if (tc0->rcv_wnd < tc0->snd_mss
&& tc0->rcv_nxt == vnet_buffer (b0)->tcp.seq_number)
goto check_reset;
}
always_inline int
-tcp_rcv_ack_is_acceptable (tcp_connection_t * tc0, vlib_buffer_t * tb0)
+tcp_rcv_ack_no_cc (tcp_connection_t * tc, vlib_buffer_t * b, u32 * error)
{
/* SND.UNA =< SEG.ACK =< SND.NXT */
- return (seq_leq (tc0->snd_una, vnet_buffer (tb0)->tcp.ack_number)
- && seq_leq (vnet_buffer (tb0)->tcp.ack_number, tc0->snd_nxt));
+ if (!(seq_leq (tc->snd_una, vnet_buffer (b)->tcp.ack_number)
+ && seq_leq (vnet_buffer (b)->tcp.ack_number, tc->snd_nxt)))
+ {
+ if (seq_leq (vnet_buffer (b)->tcp.ack_number, tc->snd_una_max))
+ {
+ tc->snd_nxt = vnet_buffer (b)->tcp.ack_number;
+ goto acceptable;
+ }
+ *error = TCP_ERROR_ACK_INVALID;
+ return -1;
+ }
+
+acceptable:
+ tc->bytes_acked = vnet_buffer (b)->tcp.ack_number - tc->snd_una;
+ tc->snd_una = vnet_buffer (b)->tcp.ack_number;
+ *error = TCP_ERROR_ACK_OK;
+ return 0;
}
/**
}
}
+#ifndef CLIB_MARCH_VARIANT
void
tcp_update_rto (tcp_connection_t * tc)
{
tc->rto = clib_min (tc->srtt + (tc->rttvar << 2), TCP_RTO_MAX);
tc->rto = clib_max (tc->rto, TCP_RTO_MIN);
}
+#endif /* CLIB_MARCH_VARIANT */
/**
* Update RTT estimate and RTO timer
u32 prev_snd_una)
{
return ((vnet_buffer (b)->tcp.ack_number == prev_snd_una)
- && seq_gt (tc->snd_una_max, tc->snd_una)
+ && seq_gt (tc->snd_nxt, tc->snd_una)
&& (vnet_buffer (b)->tcp.seq_end == vnet_buffer (b)->tcp.seq_number)
&& (prev_snd_wnd == tc->snd_wnd));
}
return ((*is_dack || tcp_in_cong_recovery (tc)) && !tcp_is_lost_fin (tc));
}
+#ifndef CLIB_MARCH_VARIANT
static u32
scoreboard_hole_index (sack_scoreboard_t * sb, sack_scoreboard_hole_t * hole)
{
return hole;
}
+#endif /* CLIB_MARCH_VARIANT */
+#ifndef CLIB_MARCH_VARIANT
static void
scoreboard_update_bytes (tcp_connection_t * tc, sack_scoreboard_t * sb)
{
return hole;
}
+#endif /* CLIB_MARCH_VARIANT */
static void
scoreboard_init_high_rxt (sack_scoreboard_t * sb, u32 snd_una)
sb->rescue_rxt = snd_una - 1;
}
+#ifndef CLIB_MARCH_VARIANT
void
scoreboard_init (sack_scoreboard_t * sb)
{
sb->lost_bytes = 0;
sb->cur_rxt_hole = TCP_INVALID_SACK_HOLE_INDEX;
}
+#endif /* CLIB_MARCH_VARIANT */
/**
* Test that scoreboard is sane after recovery
sack_scoreboard_hole_t *hole;
hole = scoreboard_first_hole (&tc->sack_sb);
return (!hole || (seq_geq (hole->start, tc->snd_una)
- && seq_lt (hole->end, tc->snd_una_max)));
+ && seq_lt (hole->end, tc->snd_nxt)));
}
+#ifndef CLIB_MARCH_VARIANT
void
tcp_rcv_sacks (tcp_connection_t * tc, u32 ack)
{
if (seq_lt (blk->start, blk->end)
&& seq_gt (blk->start, tc->snd_una)
&& seq_gt (blk->start, ack)
- && seq_lt (blk->start, tc->snd_una_max)
- && seq_leq (blk->end, tc->snd_una_max))
+ && seq_lt (blk->start, tc->snd_nxt)
+ && seq_leq (blk->end, tc->snd_nxt))
{
blk++;
continue;
{
/* If no holes, insert the first that covers all outstanding bytes */
last_hole = scoreboard_insert_hole (sb, TCP_INVALID_SACK_HOLE_INDEX,
- tc->snd_una, tc->snd_una_max);
+ tc->snd_una, tc->snd_nxt);
sb->tail = scoreboard_hole_index (sb, last_hole);
tmp = tc->rcv_opts.sacks[vec_len (tc->rcv_opts.sacks) - 1];
sb->high_sacked = tmp.end;
* last hole end */
tmp = tc->rcv_opts.sacks[vec_len (tc->rcv_opts.sacks) - 1];
last_hole = scoreboard_last_hole (sb);
- if (seq_gt (tc->snd_una_max, last_hole->end))
+ if (seq_gt (tc->snd_nxt, last_hole->end))
{
if (seq_geq (last_hole->start, sb->high_sacked))
{
- last_hole->end = tc->snd_una_max;
+ last_hole->end = tc->snd_nxt;
}
/* New hole after high sacked block */
- else if (seq_lt (sb->high_sacked, tc->snd_una_max))
+ else if (seq_lt (sb->high_sacked, tc->snd_nxt))
{
scoreboard_insert_hole (sb, sb->tail, sb->high_sacked,
- tc->snd_una_max);
+ tc->snd_nxt);
}
}
/* Keep track of max byte sacked for when the last hole
if (pool_elts (sb->holes) == 1)
{
hole = scoreboard_first_hole (sb);
- if (hole->start == ack + sb->snd_una_adv
- && hole->end == tc->snd_una_max)
+ if (hole->start == ack + sb->snd_una_adv && hole->end == tc->snd_nxt)
scoreboard_remove_hole (sb, hole);
}
- (old_sacked_bytes - sb->last_bytes_delivered);
ASSERT (sb->last_sacked_bytes <= sb->sacked_bytes || tcp_in_recovery (tc));
ASSERT (sb->sacked_bytes == 0 || tcp_in_recovery (tc)
- || sb->sacked_bytes < tc->snd_una_max - seq_max (tc->snd_una, ack));
- ASSERT (sb->last_sacked_bytes + sb->lost_bytes <= tc->snd_una_max
+ || sb->sacked_bytes < tc->snd_nxt - seq_max (tc->snd_una, ack));
+ ASSERT (sb->last_sacked_bytes + sb->lost_bytes <= tc->snd_nxt
- seq_max (tc->snd_una, ack) || tcp_in_recovery (tc));
ASSERT (sb->head == TCP_INVALID_SACK_HOLE_INDEX || tcp_in_recovery (tc)
|| sb->holes[sb->head].start == ack + sb->snd_una_adv);
TCP_EVT_DBG (TCP_EVT_CC_SCOREBOARD, tc);
}
+#endif /* CLIB_MARCH_VARIANT */
/**
* Try to update snd_wnd based on feedback received from peer.
}
}
+#ifndef CLIB_MARCH_VARIANT
/**
* Init loss recovery/fast recovery.
*
tcp_cc_init_congestion (tcp_connection_t * tc)
{
tcp_fastrecovery_on (tc);
- tc->snd_congestion = tc->snd_una_max;
+ tc->snd_congestion = tc->snd_nxt;
tc->cwnd_acc_bytes = 0;
tc->snd_rxt_bytes = 0;
tc->prev_ssthresh = tc->ssthresh;
tc->cc_algo->congestion (tc);
TCP_EVT_DBG (TCP_EVT_CC_EVT, tc, 4);
}
+#endif /* CLIB_MARCH_VARIANT */
static void
tcp_cc_recovery_exit (tcp_connection_t * tc)
tc->rto_boff = 0;
tcp_update_rto (tc);
tc->snd_rxt_ts = 0;
- tc->snd_nxt = tc->snd_una_max;
tc->rtt_ts = 0;
tcp_recovery_off (tc);
TCP_EVT_DBG (TCP_EVT_CC_EVT, tc, 3);
}
+#ifndef CLIB_MARCH_VARIANT
void
tcp_cc_fastrecovery_exit (tcp_connection_t * tc)
{
tc->cc_algo->recovered (tc);
tc->snd_rxt_bytes = 0;
tc->rcv_dupacks = 0;
- tc->snd_nxt = tc->snd_una_max;
tc->snd_rxt_bytes = 0;
tc->rtt_ts = 0;
TCP_EVT_DBG (TCP_EVT_CC_EVT, tc, 3);
}
+#endif /* CLIB_MARCH_VARIANT */
static void
tcp_cc_congestion_undo (tcp_connection_t * tc)
{
tc->cwnd = tc->prev_cwnd;
tc->ssthresh = tc->prev_ssthresh;
- tc->snd_nxt = tc->snd_una_max;
tc->rcv_dupacks = 0;
if (tcp_in_recovery (tc))
- tcp_cc_recovery_exit (tc);
+ {
+ tcp_cc_recovery_exit (tc);
+ tc->snd_nxt = seq_max (tc->snd_nxt, tc->snd_congestion);
+ }
else if (tcp_in_fastrecovery (tc))
- tcp_cc_fastrecovery_exit (tc);
+ {
+ tcp_cc_fastrecovery_exit (tc);
+ }
ASSERT (tc->rto_boff == 0);
TCP_EVT_DBG (TCP_EVT_CC_EVT, tc, 5);
}
|| tcp_should_fastrecover_sack (tc));
}
+#ifndef CLIB_MARCH_VARIANT
void
tcp_program_fastretransmit (tcp_worker_ctx_t * wrk, tcp_connection_t * tc)
{
for (i = 0; i < vec_len (ongoing_fast_rxt); i++)
{
+ tc = tcp_connection_get (ongoing_fast_rxt[i], thread_index);
+ if (!tcp_in_fastrecovery (tc))
+ {
+ tc->flags &= ~TCP_CONN_FRXT_PENDING;
+ continue;
+ }
+
if (n_segs >= VLIB_FRAME_SIZE)
{
vec_add1 (wrk->postponed_fast_rxt, ongoing_fast_rxt[i]);
continue;
}
- tc = tcp_connection_get (ongoing_fast_rxt[i], thread_index);
tc->flags &= ~TCP_CONN_FRXT_PENDING;
-
- if (!tcp_in_fastrecovery (tc))
- continue;
-
burst_size = clib_min (max_burst_size, VLIB_FRAME_SIZE - n_segs);
burst_bytes = transport_connection_tx_pacer_burst (&tc->connection,
last_cpu_time);
_vec_len (ongoing_fast_rxt) = 0;
wrk->ongoing_fast_rxt = ongoing_fast_rxt;
}
+#endif /* CLIB_MARCH_VARIANT */
/**
* One function to rule them all ... and in the darkness bind them
else if (is_dack && !tcp_in_recovery (tc))
{
TCP_EVT_DBG (TCP_EVT_DUPACK_RCVD, tc, 1);
- ASSERT (tc->snd_una != tc->snd_una_max
- || tc->sack_sb.last_sacked_bytes);
+ ASSERT (tc->snd_una != tc->snd_nxt || tc->sack_sb.last_sacked_bytes);
tc->rcv_dupacks++;
return;
}
- tc->snd_nxt = tc->snd_una_max;
-
/* Treat as congestion avoidance ack */
tcp_cc_rcv_ack (tc);
return;
/* If the ACK acks something not yet sent (SEG.ACK > SND.NXT) */
if (PREDICT_FALSE (seq_gt (vnet_buffer (b)->tcp.ack_number, tc->snd_nxt)))
{
- /* When we entered cong recovery, we reset snd_nxt to snd_una. Seems
- * peer still has the data so accept the ack */
- if (tcp_in_cong_recovery (tc)
- && seq_leq (vnet_buffer (b)->tcp.ack_number,
- tc->snd_una + tc->snd_wnd))
+ /* We've probably entered recovery and the peer still has some
+ * of the data we've sent. Update snd_nxt and accept the ack */
+ if (seq_leq (vnet_buffer (b)->tcp.ack_number, tc->snd_una_max))
{
tc->snd_nxt = vnet_buffer (b)->tcp.ack_number;
- if (seq_gt (tc->snd_nxt, tc->snd_una_max))
- tc->snd_una_max = tc->snd_nxt;
goto process_ack;
}
- /* If we have outstanding data and this is within the window, accept it,
- * probably retransmit has timed out. Otherwise ACK segment and then
- * drop it */
- if (seq_gt (vnet_buffer (b)->tcp.ack_number, tc->snd_una_max))
- {
- tcp_program_ack (wrk, tc);
- *error = TCP_ERROR_ACK_FUTURE;
- TCP_EVT_DBG (TCP_EVT_ACK_RCV_ERR, tc, 0,
- vnet_buffer (b)->tcp.ack_number);
- return -1;
- }
-
- TCP_EVT_DBG (TCP_EVT_ACK_RCV_ERR, tc, 2,
+ *error = TCP_ERROR_ACK_FUTURE;
+ TCP_EVT_DBG (TCP_EVT_ACK_RCV_ERR, tc, 0,
vnet_buffer (b)->tcp.ack_number);
-
- tc->snd_nxt = vnet_buffer (b)->tcp.ack_number;
- if (seq_gt (tc->snd_nxt, tc->snd_una_max))
- tc->snd_una_max = tc->snd_nxt;
-
- goto process_ack;
+ return -1;
}
/* If old ACK, probably it's an old dupack */
return 0;
}
+process_ack:
+
/*
* Looks okay, process feedback
*/
-process_ack:
if (tcp_opts_sack_permitted (&tc->rcv_opts))
tcp_rcv_sacks (tc, vnet_buffer (b)->tcp.ack_number);
*error = TCP_ERROR_FIN_RCVD;
}
+#ifndef CLIB_MARCH_VARIANT
static u8
tcp_sack_vector_is_sane (sack_block_t * sacks)
{
/* Save to new SACK list if we have space. */
if (vec_len (new_list) < TCP_MAX_SACK_BLOCKS)
- {
- vec_add1 (new_list, tc->snd_sacks[i]);
- }
- else
- {
- clib_warning ("sack discarded");
- }
+ vec_add1 (new_list, tc->snd_sacks[i]);
}
ASSERT (vec_len (new_list) <= TCP_MAX_SACK_BLOCKS);
bytes += tc->snd_sacks[i].end - tc->snd_sacks[i].start;
return bytes;
}
+#endif /* CLIB_MARCH_VARIANT */
/** Enqueue data for delivery to application */
static int
{
/* Send ack if ... */
if (TCP_ALWAYS_ACK
- /* just sent a rcv wnd 0 */
- || (tc->flags & TCP_CONN_SENT_RCV_WND0) != 0
+ /* just sent a rcv wnd 0
+ || (tc->flags & TCP_CONN_SENT_RCV_WND0) != 0 */
/* constrained to send ack */
|| (tc->flags & TCP_CONN_SNDACK) != 0
/* we're almost out of tx wnd */
return frame->n_vectors;
}
-static uword
-tcp4_established (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp4_established_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_established_inline (vm, node, from_frame, 1 /* is_ip4 */ );
}
-static uword
-tcp6_established (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp6_established_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_established_inline (vm, node, from_frame, 0 /* is_ip4 */ );
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp4_established_node) =
{
- .function = tcp4_established,
.name = "tcp4-established",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp4_established_node, tcp4_established);
-
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp6_established_node) =
{
- .function = tcp6_established,
.name = "tcp6-established",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp6_established_node, tcp6_established);
-
-vlib_node_registration_t tcp4_syn_sent_node;
-vlib_node_registration_t tcp6_syn_sent_node;
-
static u8
tcp_lookup_is_valid (tcp_connection_t * tc, tcp_header_t * hdr)
{
return from_frame->n_vectors;
}
-static uword
-tcp4_syn_sent (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp4_syn_sent_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_syn_sent_inline (vm, node, from_frame, 1 /* is_ip4 */ );
}
-static uword
-tcp6_syn_sent_rcv (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp6_syn_sent_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_syn_sent_inline (vm, node, from_frame, 0 /* is_ip4 */ );
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp4_syn_sent_node) =
{
- .function = tcp4_syn_sent,
.name = "tcp4-syn-sent",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp4_syn_sent_node, tcp4_syn_sent);
-
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp6_syn_sent_node) =
{
- .function = tcp6_syn_sent_rcv,
.name = "tcp6-syn-sent",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-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
switch (tc0->state)
{
case TCP_STATE_SYN_RCVD:
+
+ /* Make sure the segment is exactly right */
+ if (tc0->rcv_nxt != vnet_buffer (b0)->tcp.seq_number || is_fin0)
+ {
+ tcp_connection_reset (tc0);
+ error0 = TCP_ERROR_SEGMENT_INVALID;
+ goto drop;
+ }
+
/*
* If the segment acknowledgment is not acceptable, form a
* reset segment,
* <SEQ=SEG.ACK><CTL=RST>
* and send it.
*/
- if (!tcp_rcv_ack_is_acceptable (tc0, b0))
+ if (tcp_rcv_ack_no_cc (tc0, b0, &error0))
{
tcp_connection_reset (tc0);
- error0 = TCP_ERROR_ACK_INVALID;
- goto drop;
- }
-
- /* Make sure the ack is exactly right */
- if (tc0->rcv_nxt != vnet_buffer (b0)->tcp.seq_number || is_fin0)
- {
- tcp_connection_reset (tc0);
- error0 = TCP_ERROR_SEGMENT_INVALID;
goto drop;
}
tcp_send_fin (tc0);
}
/* If FIN is ACKed */
- else if (tc0->snd_una == tc0->snd_una_max)
+ else if (tc0->snd_una == tc0->snd_nxt)
{
- tcp_connection_set_state (tc0, TCP_STATE_FIN_WAIT_2);
-
/* Stop all retransmit timers because we have nothing more
- * to send. Enable waitclose though because we're willing to
- * wait for peer's FIN but not indefinitely. */
+ * to send. */
tcp_connection_timers_reset (tc0);
+
+ /* We already have a FIN but didn't transition to CLOSING
+ * because of outstanding tx data. Close the connection. */
+ if (tc0->flags & TCP_CONN_FINRCVD)
+ {
+ tcp_connection_set_state (tc0, TCP_STATE_CLOSED);
+ tcp_timer_set (tc0, TCP_TIMER_WAITCLOSE, TCP_CLEANUP_TIME);
+ goto drop;
+ }
+
+ tcp_connection_set_state (tc0, TCP_STATE_FIN_WAIT_2);
+ /* Enable waitclose because we're willing to wait for peer's
+ * FIN but not indefinitely. */
tcp_timer_set (tc0, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
/* Don't try to deq the FIN acked */
/* In addition to the processing for the ESTABLISHED state, if
* the retransmission queue is empty, the user's CLOSE can be
* acknowledged ("ok") but do not delete the TCB. */
- if (tcp_rcv_ack (wrk, tc0, b0, tcp0, &error0))
+ if (tcp_rcv_ack_no_cc (tc0, b0, &error0))
goto drop;
tc0->burst_acked = 0;
break;
if (tcp_rcv_ack (wrk, tc0, b0, tcp0, &error0))
goto drop;
- if (tc0->flags & TCP_CONN_FINPNDG)
- {
- /* TX fifo finally drained */
- if (!transport_max_tx_dequeue (&tc0->connection))
- {
- tcp_send_fin (tc0);
- tcp_connection_timers_reset (tc0);
- tcp_connection_set_state (tc0, TCP_STATE_LAST_ACK);
- tcp_timer_set (tc0, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
- }
- }
+ if (!(tc0->flags & TCP_CONN_FINPNDG))
+ break;
+
+ /* Still have outstanding tx data */
+ if (transport_max_tx_dequeue (&tc0->connection))
+ break;
+
+ tcp_send_fin (tc0);
+ tcp_connection_timers_reset (tc0);
+ tcp_connection_set_state (tc0, TCP_STATE_LAST_ACK);
+ tcp_timer_set (tc0, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
break;
case TCP_STATE_CLOSING:
/* In addition to the processing for the ESTABLISHED state, if
* the ACK acknowledges our FIN then enter the TIME-WAIT state,
* otherwise ignore the segment. */
- if (tcp_rcv_ack (wrk, tc0, b0, tcp0, &error0))
+ if (tcp_rcv_ack_no_cc (tc0, b0, &error0))
+ goto drop;
+
+ if (tc0->snd_una != tc0->snd_nxt)
goto drop;
tcp_connection_timers_reset (tc0);
* acknowledgment of our FIN. If our FIN is now acknowledged,
* delete the TCB, enter the CLOSED state, and return. */
- if (!tcp_rcv_ack_is_acceptable (tc0, b0))
- {
- error0 = TCP_ERROR_ACK_INVALID;
- goto drop;
- }
- error0 = TCP_ERROR_ACK_OK;
- tc0->snd_una = vnet_buffer (b0)->tcp.ack_number;
+ if (tcp_rcv_ack_no_cc (tc0, b0, &error0))
+ goto drop;
+
/* Apparently our ACK for the peer's FIN was lost */
- if (is_fin0 && tc0->snd_una != tc0->snd_una_max)
+ if (is_fin0 && tc0->snd_una != tc0->snd_nxt)
{
tcp_send_fin (tc0);
goto drop;
* retransmission of the remote FIN. Acknowledge it, and restart
* the 2 MSL timeout. */
- if (tcp_rcv_ack (wrk, tc0, b0, tcp0, &error0))
+ if (tcp_rcv_ack_no_cc (tc0, b0, &error0))
+ goto drop;
+
+ if (!is_fin0)
goto drop;
tcp_program_ack (wrk, tc0);
break;
case TCP_STATE_FIN_WAIT_1:
tc0->rcv_nxt += 1;
- tcp_connection_set_state (tc0, TCP_STATE_CLOSING);
+ /* If data is outstanding stay in FIN_WAIT_1 and try to finish
+ * sending it. */
if (tc0->flags & TCP_CONN_FINPNDG)
{
- /* Drop all outstanding tx data. */
- session_tx_fifo_dequeue_drop (&tc0->connection,
- transport_max_tx_dequeue
- (&tc0->connection));
- tcp_send_fin (tc0);
+ tc0->flags |= TCP_CONN_FINRCVD;
}
else
- tcp_program_ack (wrk, tc0);
+ {
+ tcp_connection_set_state (tc0, TCP_STATE_CLOSING);
+ tcp_program_ack (wrk, tc0);
+ }
/* Wait for ACK for our FIN but not forever */
tcp_timer_update (tc0, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
break;
return from_frame->n_vectors;
}
-static uword
-tcp4_rcv_process (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp4_rcv_process_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_rcv_process_inline (vm, node, from_frame, 1 /* is_ip4 */ );
}
-static uword
-tcp6_rcv_process (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp6_rcv_process_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_rcv_process_inline (vm, node, from_frame, 0 /* is_ip4 */ );
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp4_rcv_process_node) =
{
- .function = tcp4_rcv_process,
.name = "tcp4-rcv-process",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp4_rcv_process_node, tcp4_rcv_process);
-
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp6_rcv_process_node) =
{
- .function = tcp6_rcv_process,
.name = "tcp6-rcv-process",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp6_rcv_process_node, tcp6_rcv_process);
-
-vlib_node_registration_t tcp4_listen_node;
-vlib_node_registration_t tcp6_listen_node;
-
/**
* LISTEN state processing as per RFC 793 p. 65
*/
return from_frame->n_vectors;
}
-static uword
-tcp4_listen (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp4_listen_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_listen_inline (vm, node, from_frame, 1 /* is_ip4 */ );
}
-static uword
-tcp6_listen (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp6_listen_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_listen_inline (vm, node, from_frame, 0 /* is_ip4 */ );
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp4_listen_node) =
{
- .function = tcp4_listen,
.name = "tcp4-listen",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp4_listen_node, tcp4_listen);
-
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp6_listen_node) =
{
- .function = tcp6_listen,
.name = "tcp6-listen",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp6_listen_node, tcp6_listen);
-
-vlib_node_registration_t tcp4_input_node;
-vlib_node_registration_t tcp6_input_node;
-
typedef enum _tcp_input_next
{
TCP_INPUT_NEXT_DROP,
return frame->n_vectors;
}
-static uword
-tcp4_input (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp4_input_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_input_inline (vm, node, from_frame, 1 /* is_ip4 */ );
}
-static uword
-tcp6_input (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (tcp6_input_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return tcp46_input_inline (vm, node, from_frame, 0 /* is_ip4 */ );
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp4_input_node) =
{
- .function = tcp4_input,
.name = "tcp4-input",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp4_input_node, tcp4_input);
-
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tcp6_input_node) =
{
- .function = tcp6_input,
.name = "tcp6-input",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (tcp6_input_node, tcp6_input);
-
+#ifndef CLIB_MARCH_VARIANT
static void
tcp_dispatch_table_init (tcp_main_t * tm)
{
VLIB_INIT_FUNCTION (tcp_input_init);
+#endif /* CLIB_MARCH_VARIANT */
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff