misc: deprecating the plugin

Type: refactor

Not maintained

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I5568ecf1161b63cd0f314e2b1503e350e214e51b

1 files changed, 0 insertions, 397 deletions

diff --git a/src/plugins/sctp/sctp_output_node.c b/src/plugins/sctp/sctp_output_node.c
deleted file mode 100644
index 7bf2e896acc..00000000000
--- a/src/plugins/sctp/sctp_output_node.c
+++ /dev/null
@@ -1,397 +0,0 @@
-/*
- * Copyright (c) 2018 SUSE LLC.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <sctp/sctp.h>
-#include <sctp/sctp_debug.h>
-#include <vppinfra/random.h>
-#include <openssl/hmac.h>
-
-u32
-ip6_sctp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
-			   ip6_header_t * ip0, int *bogus_lengthp);
-
-u32
-ip4_sctp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
-			   ip4_header_t * ip0);
-
-#define foreach_sctp4_output_next              	\
-  _ (DROP, "error-drop")                        \
-  _ (IP_LOOKUP, "ip4-lookup")
-
-#define foreach_sctp6_output_next              	\
-  _ (DROP, "error-drop")                        \
-  _ (IP_LOOKUP, "ip6-lookup")
-
-static char *sctp_error_strings[] = {
-#define sctp_error(n,s) s,
-#include <sctp/sctp_error.def>
-#undef sctp_error
-};
-
-typedef enum _sctp_output_next
-{
-  SCTP_OUTPUT_NEXT_DROP,
-  SCTP_OUTPUT_NEXT_IP_LOOKUP,
-  SCTP_OUTPUT_N_NEXT
-} sctp_output_next_t;
-
-typedef struct
-{
-  sctp_header_t sctp_header;
-  sctp_connection_t sctp_connection;
-} sctp_tx_trace_t;
-
-always_inline u8
-sctp_is_retransmitting (sctp_connection_t * sctp_conn, u8 idx)
-{
-  return sctp_conn->sub_conn[idx].is_retransmitting;
-}
-
-always_inline uword
-sctp46_output_inline (vlib_main_t * vm,
-		      vlib_node_runtime_t * node,
-		      vlib_frame_t * from_frame, int is_ip4)
-{
-  u32 n_left_from, next_index, *from, *to_next;
-  u32 my_thread_index = vm->thread_index;
-
-  from = vlib_frame_vector_args (from_frame);
-  n_left_from = from_frame->n_vectors;
-  next_index = node->cached_next_index;
-  sctp_set_time_now (my_thread_index);
-
-  while (n_left_from > 0)
-    {
-      u32 n_left_to_next;
-
-      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
-      while (n_left_from > 0 && n_left_to_next > 0)
-	{
-	  u32 bi0;
-	  vlib_buffer_t *b0;
-	  sctp_header_t *sctp_hdr = 0;
-	  sctp_connection_t *sctp_conn;
-	  sctp_tx_trace_t *t0;
-	  sctp_header_t *th0 = 0;
-	  u32 error0 = SCTP_ERROR_PKTS_SENT, next0 =
-	    SCTP_OUTPUT_NEXT_IP_LOOKUP;
-
-#if SCTP_DEBUG_STATE_MACHINE
-	  u16 packet_length = 0;
-#endif
-
-	  bi0 = from[0];
-	  to_next[0] = bi0;
-	  from += 1;
-	  to_next += 1;
-	  n_left_from -= 1;
-	  n_left_to_next -= 1;
-
-	  b0 = vlib_get_buffer (vm, bi0);
-
-	  sctp_conn =
-	    sctp_connection_get (sctp_buffer_opaque (b0)->
-				 sctp.connection_index, my_thread_index);
-
-	  if (PREDICT_FALSE (sctp_conn == 0))
-	    {
-	      error0 = SCTP_ERROR_INVALID_CONNECTION;
-	      next0 = SCTP_OUTPUT_NEXT_DROP;
-	      goto done;
-	    }
-
-	  u8 idx = sctp_buffer_opaque (b0)->sctp.subconn_idx;
-
-	  th0 = vlib_buffer_get_current (b0);
-
-	  if (is_ip4)
-	    {
-	      ip4_header_t *iph4 = vlib_buffer_push_ip4 (vm,
-							 b0,
-							 &sctp_conn->sub_conn
-							 [idx].connection.
-							 lcl_ip.ip4,
-							 &sctp_conn->
-							 sub_conn
-							 [idx].connection.
-							 rmt_ip.ip4,
-							 IP_PROTOCOL_SCTP, 1);
-
-	      u32 checksum = ip4_sctp_compute_checksum (vm, b0, iph4);
-
-	      sctp_hdr = ip4_next_header (iph4);
-	      sctp_hdr->checksum = checksum;
-
-	      vnet_buffer (b0)->l4_hdr_offset = (u8 *) th0 - b0->data;
-
-#if SCTP_DEBUG_STATE_MACHINE
-	      packet_length = clib_net_to_host_u16 (iph4->length);
-#endif
-	    }
-	  else
-	    {
-	      ip6_header_t *iph6 = vlib_buffer_push_ip6 (vm,
-							 b0,
-							 &sctp_conn->sub_conn
-							 [idx].
-							 connection.lcl_ip.
-							 ip6,
-							 &sctp_conn->sub_conn
-							 [idx].
-							 connection.rmt_ip.
-							 ip6,
-							 IP_PROTOCOL_SCTP);
-
-	      int bogus = ~0;
-	      u32 checksum = ip6_sctp_compute_checksum (vm, b0, iph6, &bogus);
-	      ASSERT (!bogus);
-
-	      sctp_hdr = ip6_next_header (iph6);
-	      sctp_hdr->checksum = checksum;
-
-	      vnet_buffer (b0)->l3_hdr_offset = (u8 *) iph6 - b0->data;
-	      vnet_buffer (b0)->l4_hdr_offset = (u8 *) th0 - b0->data;
-
-#if SCTP_DEBUG_STATE_MACHINE
-	      packet_length = clib_net_to_host_u16 (iph6->payload_length);
-#endif
-	    }
-
-	  sctp_full_hdr_t *full_hdr = (sctp_full_hdr_t *) sctp_hdr;
-	  u8 chunk_type = vnet_sctp_get_chunk_type (&full_hdr->common_hdr);
-	  if (chunk_type >= UNKNOWN)
-	    {
-	      clib_warning
-		("Trying to send an unrecognized chunk... something is really bad.");
-	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
-	      next0 = SCTP_OUTPUT_NEXT_DROP;
-	      goto done;
-	    }
-
-#if SCTP_DEBUG_STATE_MACHINE
-	  u8 is_valid =
-	    (sctp_conn->sub_conn[idx].connection.lcl_port ==
-	     sctp_hdr->src_port
-	     || sctp_conn->sub_conn[idx].connection.lcl_port ==
-	     sctp_hdr->dst_port)
-	    && (sctp_conn->sub_conn[idx].connection.rmt_port ==
-		sctp_hdr->dst_port
-		|| sctp_conn->sub_conn[idx].connection.rmt_port ==
-		sctp_hdr->src_port);
-
-	  if (!is_valid)
-	    {
-	      SCTP_DBG_STATE_MACHINE ("BUFFER IS INCORRECT: conn_index = %u, "
-				      "packet_length = %u, "
-				      "chunk_type = %u [%s], "
-				      "connection.lcl_port = %u, sctp_hdr->src_port = %u, "
-				      "connection.rmt_port = %u, sctp_hdr->dst_port = %u",
-				      sctp_conn->sub_conn[idx].
-				      connection.c_index, packet_length,
-				      chunk_type,
-				      sctp_chunk_to_string (chunk_type),
-				      sctp_conn->sub_conn[idx].
-				      connection.lcl_port, sctp_hdr->src_port,
-				      sctp_conn->sub_conn[idx].
-				      connection.rmt_port,
-				      sctp_hdr->dst_port);
-
-	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
-	      next0 = SCTP_OUTPUT_NEXT_DROP;
-	      goto done;
-	    }
-#endif
-	  SCTP_DBG_STATE_MACHINE
-	    ("SESSION_INDEX = %u, CONN_INDEX = %u, CURR_CONN_STATE = %u (%s), "
-	     "CHUNK_TYPE = %s, " "SRC_PORT = %u, DST_PORT = %u",
-	     sctp_conn->sub_conn[idx].connection.s_index,
-	     sctp_conn->sub_conn[idx].connection.c_index,
-	     sctp_conn->state, sctp_state_to_string (sctp_conn->state),
-	     sctp_chunk_to_string (chunk_type), full_hdr->hdr.src_port,
-	     full_hdr->hdr.dst_port);
-
-	  /* Let's make sure the state-machine does not send anything crazy */
-#if SCTP_DEBUG_STATE_MACHINE
-	  if (sctp_validate_output_state_machine (sctp_conn, chunk_type) != 0)
-	    {
-	      SCTP_DBG_STATE_MACHINE
-		("Sending the wrong chunk (%s) based on state-machine status (%s)",
-		 sctp_chunk_to_string (chunk_type),
-		 sctp_state_to_string (sctp_conn->state));
-
-	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
-	      next0 = SCTP_OUTPUT_NEXT_DROP;
-	      goto done;
-
-	    }
-#endif
-
-	  /* Karn's algorithm: RTT measurements MUST NOT be made using
-	   * packets that were retransmitted
-	   */
-	  if (!sctp_is_retransmitting (sctp_conn, idx))
-	    {
-	      /* Measure RTT with this */
-	      if (chunk_type == DATA
-		  && sctp_conn->sub_conn[idx].RTO_pending == 0)
-		{
-		  sctp_conn->sub_conn[idx].RTO_pending = 1;
-		  sctp_conn->sub_conn[idx].rtt_ts = sctp_time_now ();
-		}
-	      else
-		sctp_conn->sub_conn[idx].rtt_ts = sctp_time_now ();
-	    }
-
-	  /* Let's take care of TIMERS */
-	  switch (chunk_type)
-	    {
-	    case COOKIE_ECHO:
-	      {
-		sctp_conn->state = SCTP_STATE_COOKIE_ECHOED;
-		break;
-	      }
-	    case DATA:
-	      {
-		SCTP_ADV_DBG_OUTPUT ("PACKET_LENGTH = %u", packet_length);
-
-		sctp_timer_update (sctp_conn, idx, SCTP_TIMER_T3_RXTX,
-				   sctp_conn->sub_conn[idx].RTO);
-		break;
-	      }
-	    case SHUTDOWN:
-	      {
-		/* Start the SCTP_TIMER_T2_SHUTDOWN timer */
-		sctp_timer_set (sctp_conn, idx, SCTP_TIMER_T2_SHUTDOWN,
-				sctp_conn->sub_conn[idx].RTO);
-		sctp_conn->state = SCTP_STATE_SHUTDOWN_SENT;
-		break;
-	      }
-	    case SHUTDOWN_ACK:
-	      {
-		/* Start the SCTP_TIMER_T2_SHUTDOWN timer */
-		sctp_timer_set (sctp_conn, idx, SCTP_TIMER_T2_SHUTDOWN,
-				sctp_conn->sub_conn[idx].RTO);
-		sctp_conn->state = SCTP_STATE_SHUTDOWN_ACK_SENT;
-		break;
-	      }
-	    case SHUTDOWN_COMPLETE:
-	      {
-		sctp_conn->state = SCTP_STATE_CLOSED;
-		break;
-	      }
-	    }
-
-	  vnet_buffer (b0)->sw_if_index[VLIB_RX] = 0;
-	  vnet_buffer (b0)->sw_if_index[VLIB_TX] =
-	    sctp_conn->sub_conn[idx].c_fib_index;
-
-	  b0->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
-
-	  SCTP_DBG_STATE_MACHINE
-	    ("SESSION_INDEX = %u, CONNECTION_INDEX = %u, " "NEW_STATE = %s, "
-	     "CHUNK_SENT = %s", sctp_conn->sub_conn[idx].connection.s_index,
-	     sctp_conn->sub_conn[idx].connection.c_index,
-	     sctp_state_to_string (sctp_conn->state),
-	     sctp_chunk_to_string (chunk_type));
-
-	  vnet_sctp_common_hdr_params_host_to_net (&full_hdr->common_hdr);
-
-	done:
-	  b0->error = node->errors[error0];
-	  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
-	    {
-	      t0 = vlib_add_trace (vm, node, b0, sizeof (*t0));
-	      if (th0)
-		{
-		  clib_memcpy_fast (&t0->sctp_header, th0,
-				    sizeof (t0->sctp_header));
-		}
-	      else
-		{
-		  clib_memset (&t0->sctp_header, 0, sizeof (t0->sctp_header));
-		}
-	      clib_memcpy_fast (&t0->sctp_connection, sctp_conn,
-				sizeof (t0->sctp_connection));
-	    }
-
-	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
-					   n_left_to_next, bi0, next0);
-	}
-
-      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
-    }
-
-  return from_frame->n_vectors;
-}
-
-VLIB_NODE_FN (sctp4_output_node) (vlib_main_t * vm,
-				  vlib_node_runtime_t * node,
-				  vlib_frame_t * from_frame)
-{
-  return sctp46_output_inline (vm, node, from_frame, 1 /* is_ip4 */ );
-}
-
-VLIB_NODE_FN (sctp6_output_node) (vlib_main_t * vm,
-				  vlib_node_runtime_t * node,
-				  vlib_frame_t * from_frame)
-{
-  return sctp46_output_inline (vm, node, from_frame, 0 /* is_ip4 */ );
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (sctp4_output_node) =
-{
-    .name = "sctp4-output",
-    /* Takes a vector of packets. */
-    .vector_size = sizeof (u32),
-    .n_errors = SCTP_N_ERROR,
-    .error_strings = sctp_error_strings,
-    .n_next_nodes = SCTP_OUTPUT_N_NEXT,
-    .next_nodes = {
-#define _(s,n) [SCTP_OUTPUT_NEXT_##s] = n,
-    foreach_sctp4_output_next
-#undef _
-    },
-    .format_buffer = format_sctp_header,
-    .format_trace = format_sctp_tx_trace,
-};
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (sctp6_output_node) =
-{
-  .name = "sctp6-output",
-    /* Takes a vector of packets. */
-  .vector_size = sizeof (u32),
-  .n_errors = SCTP_N_ERROR,
-  .error_strings = sctp_error_strings,
-  .n_next_nodes = SCTP_OUTPUT_N_NEXT,
-  .next_nodes = {
-#define _(s,n) [SCTP_OUTPUT_NEXT_##s] = n,
-    foreach_sctp6_output_next
-#undef _
-  },
-  .format_buffer = format_sctp_header,
-  .format_trace = format_sctp_tx_trace,
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */