vpp: remove unused code

Change-Id: I81c5b0f9acbffa41a75de497bf6dd68936813012
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 0 insertions, 343 deletions

diff --git a/vpp/app/l2t_ip6.c b/vpp/app/l2t_ip6.c
deleted file mode 100644
index ff680734..00000000
--- a/vpp/app/l2t_ip6.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * 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 <vnet/vnet.h>
-#include <vnet/ip/ip.h>
-#include <vnet/ethernet/ethernet.h>
-
-#if DPDK == 0
-#include <vnet/devices/pci/ixgev.h>
-#include <vnet/devices/pci/ixge.h>
-#include <vnet/devices/pci/ige.h>
-#include <vnet/devices/pci/vice.h>
-#else
-#include <vnet/devices/dpdk/dpdk.h>
-#endif
-
-#include <vppinfra/error.h>
-#include <vppinfra/hash.h>
-#include <app/l2t.h>
-
-l2t_main_t l2t_main;
-
-/* Statistics (not really errors) */
-#define foreach_l2t_ip6_error                                   \
-_(USER_TO_NETWORK, "User (v6) to L2 network pkts")              \
-_(SESSION_ID_MISMATCH, "l2tpv3 local session id mismatches")    \
-_(COOKIE_MISMATCH, "l2tpv3 local cookie mismatches")
-
-static char *l2t_ip6_error_strings[] = {
-#define _(sym,string) string,
-  foreach_l2t_ip6_error
-#undef _
-};
-
-typedef enum
-{
-#define _(sym,str) L2T_IP6_ERROR_##sym,
-  foreach_l2t_ip6_error
-#undef _
-    L2T_IP6_N_ERROR,
-} l2t_ip6_error_t;
-
-/*
- * Packets go to ip6-input when they don't match a mapping,
- * example: v6 neighbor discovery. They go to ip4-input
- * when they do match, and are decapsulated.
- */
-typedef enum
-{
-  L2T_IP6_NEXT_DROP,
-  L2T_IP6_NEXT_IP6_INPUT,
-  L2T_IP6_N_NEXT,
-  /* Pseudo next, fixed in last_stage */
-  L2T_IP6_NEXT_OUTPUT = L2T_IP6_N_NEXT,
-} l2t_ip6_next_t;
-
-vlib_node_registration_t l2t_ip6_node;
-
-#define NSTAGES 3
-
-static inline void
-stage0 (vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index)
-{
-  vlib_buffer_t *b = vlib_get_buffer (vm, buffer_index);
-  vlib_prefetch_buffer_header (b, STORE);
-  /* l2tpv3 header is a long way away, need 2 cache lines */
-  CLIB_PREFETCH (b->data, 2 * CLIB_CACHE_LINE_BYTES, STORE);
-}
-
-static inline void
-stage1 (vlib_main_t * vm, vlib_node_runtime_t * node, u32 bi)
-{
-  vlib_buffer_t *b = vlib_get_buffer (vm, bi);
-  l2t_main_t *lm = &l2t_main;
-  ip6_header_t *ip6 = vlib_buffer_get_current (b);
-  u32 session_index;
-  uword *p;
-  l2tpv3_header_t *l2t;
-
-  /* Not L2tpv3 (0x73, 0t115)? Use the normal path. */
-  if (PREDICT_FALSE (ip6->protocol != 0x73))
-    {
-      vnet_buffer (b)->l2t.next_index = L2T_IP6_NEXT_IP6_INPUT;
-      return;
-    }
-
-  /* Make up your minds, people... */
-  switch (lm->lookup_type)
-    {
-    case L2T_LOOKUP_SRC_ADDRESS:
-      p = hash_get_mem (lm->session_by_src_address, &ip6->src_address);
-      break;
-    case L2T_LOOKUP_DST_ADDRESS:
-      p = hash_get_mem (lm->session_by_dst_address, &ip6->dst_address);
-      break;
-    case L2T_LOOKUP_SESSION_ID:
-      l2t = (l2tpv3_header_t *) (ip6 + 1);
-      p = hash_get (lm->session_by_session_id, l2t->session_id);
-      break;
-    default:
-      ASSERT (0);
-    }
-
-  if (PREDICT_FALSE (p == 0))
-    {
-      vnet_buffer (b)->l2t.next_index = L2T_IP6_NEXT_IP6_INPUT;
-      return;
-    }
-  else
-    {
-      session_index = p[0];
-    }
-
-  /* Remember mapping index, prefetch the mini counter */
-  vnet_buffer (b)->l2t.next_index = L2T_IP6_NEXT_OUTPUT;
-  vnet_buffer (b)->l2t.session_index = session_index;
-
-  /* Each mapping has 2 x (pkt, byte) counters, hence the shift */
-  CLIB_PREFETCH (lm->counter_main.mini + (p[0] << 1), CLIB_CACHE_LINE_BYTES,
-		 STORE);
-}
-
-static inline u32
-last_stage (vlib_main_t * vm, vlib_node_runtime_t * node, u32 bi)
-{
-  vlib_buffer_t *b = vlib_get_buffer (vm, bi);
-  l2t_main_t *lm = &l2t_main;
-  ip6_header_t *ip6 = vlib_buffer_get_current (b);
-  vlib_node_t *n = vlib_get_node (vm, l2t_ip6_node.index);
-  u32 node_counter_base_index = n->error_heap_index;
-  vlib_error_main_t *em = &vm->error_main;
-  ethernet_header_t *l2_payload;
-  l2tpv3_header_t *l2t;		/* original l2 header */
-  ethernet_vlan_header_t *vh;	/* synthesized 802.1q vlan header */
-  u32 counter_index;
-  l2t_session_t *session;
-  u16 payload_ethertype;
-  u8 dst_mac_address[6];
-  u8 src_mac_address[6];
-  u8 *vlan_header_pos;
-
-  /* Other-than-output pkt? We're done... */
-  if (vnet_buffer (b)->l2t.next_index != L2T_IP6_NEXT_OUTPUT)
-    return vnet_buffer (b)->l2t.next_index;
-
-  em->counters[node_counter_base_index + L2T_IP6_ERROR_USER_TO_NETWORK] += 1;
-
-  counter_index =
-    session_index_to_counter_index (vnet_buffer (b)->l2t.session_index,
-				    SESSION_COUNTER_USER_TO_NETWORK);
-
-  /* per-mapping byte stats include the ethernet header */
-  vlib_increment_combined_counter (&lm->counter_main, counter_index,
-				   1 /* packet_increment */ ,
-				   vlib_buffer_length_in_chain (vm, b) +
-				   sizeof (ethernet_header_t));
-
-  session = pool_elt_at_index (lm->sessions,
-			       vnet_buffer (b)->l2t.session_index);
-
-  /* build the 802.1q encaps. Advance past ip6 and l2tpv3 hds */
-  vlib_buffer_advance (b, sizeof (*ip6));
-  l2t = vlib_buffer_get_current (b);
-
-  /* $$$ wonder if we really need these checks... */
-  if (PREDICT_FALSE (l2t->session_id != session->local_session_id))
-    {
-      b->error =
-	lm->ip6_error_node->errors[L2T_IP6_ERROR_SESSION_ID_MISMATCH];
-      return L2T_IP6_NEXT_DROP;
-    }
-
-  if (PREDICT_FALSE (!((l2t->cookie == session->local_cookie) ||
-		       ((session->cookie_flags & L2TP_COOKIE_ROLLOVER_LOCAL)
-			&& (l2t->cookie == session->lcl_ro_cookie)))))
-    {
-      b->error = lm->ip6_error_node->errors[L2T_IP6_ERROR_COOKIE_MISMATCH];
-      return L2T_IP6_NEXT_DROP;
-    }
-
-  vnet_buffer (b)->sw_if_index[VLIB_TX] = session->l2_output_sw_if_index;
-
-  vlib_buffer_advance (b, sizeof (*l2t));
-
-  /* point at currrent l2 hdr */
-  l2_payload = vlib_buffer_get_current (b);
-
-  /* $$$$ rework for speed */
-
-  /* Save type */
-  payload_ethertype = l2_payload->type;
-
-  /* Save src/dst MAC addresses */
-#define _(i)  dst_mac_address[i] = l2_payload->dst_address[i];
-  _(0) _(1) _(2) _(3) _(4) _(5);
-#undef _
-#define _(i)  src_mac_address[i] = l2_payload->src_address[i];
-  _(0) _(1) _(2) _(3) _(4) _(5);
-#undef _
-
-  /* Punch in space for 802.1q tag */
-  vlib_buffer_advance (b, -4);
-  l2_payload = vlib_buffer_get_current (b);
-
-  /* Restore MAC addresses */
-#define _(i)  l2_payload->dst_address[i] = dst_mac_address[i];
-  _(0) _(1) _(2) _(3) _(4) _(5);
-#undef _
-#define _(i)  l2_payload->src_address[i] = src_mac_address[i];
-  _(0) _(1) _(2) _(3) _(4) _(5);
-#undef _
-  /* Set (outer) ethertype to 802.1q vlan */
-  l2_payload->type = clib_host_to_net_u16 (0x8100);
-  vlan_header_pos = (u8 *) (l2_payload + 1);
-#if 0
-  vlan_header_pos = session->l2_sublayer_present ?
-    vlan_header_pos : vlan_header_pos - 4;
-#endif
-  vh = (ethernet_vlan_header_t *) vlan_header_pos;
-  vh->priority_cfi_and_id = session->vlan_id;
-  vh->type = payload_ethertype;
-
-  if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
-    {
-      l2t_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
-      t->is_user_to_network = 1;
-      t->our_address.as_u64[0] = ip6->dst_address.as_u64[0];
-      t->our_address.as_u64[1] = ip6->dst_address.as_u64[1];
-      t->client_address.as_u64[0] = ip6->src_address.as_u64[0];
-      t->client_address.as_u64[1] = ip6->src_address.as_u64[1];
-      t->session_index = vnet_buffer (b)->l2t.session_index;
-      t->vlan_id_host_byte_order = clib_net_to_host_u16 (session->vlan_id);
-    }
-
-  return session->l2_output_next_index;
-}
-
-#include <vnet/pipeline.h>
-
-static uword
-ip6_l2t_node_fn (vlib_main_t * vm,
-		 vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
-  l2t_main_t *lm = &l2t_main;
-  lm->ip6_error_node = vlib_node_get_runtime (vm, l2t_ip6_node.index);
-
-  return dispatch_pipeline (vm, node, frame);
-}
-
-/* *INDENT-OFF* */
-static VLIB_REGISTER_NODE (sw6_ip6_node) = {
-  .function = ip6_l2t_node_fn,
-  .name = "ip6-l2t-input",
-  .vector_size = sizeof (u32),
-  .format_trace = format_l2t_trace,
-  .type = VLIB_NODE_TYPE_INTERNAL,
-
-  .n_errors = ARRAY_LEN(l2t_ip6_error_strings),
-  .error_strings = l2t_ip6_error_strings,
-
-  .n_next_nodes = L2T_IP6_N_NEXT,
-
-  /* edit / add dispositions here */
-  .next_nodes = {
-    [L2T_IP6_NEXT_IP6_INPUT] = "ip6-input",
-    [L2T_IP6_NEXT_DROP] = "error-drop",
-  },
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FUNCTION_MULTIARCH (sw6_ip6_node, ip6_l2t_node_fn);
-static clib_error_t *
-l2tp_config (vlib_main_t * vm, unformat_input_t * input)
-{
-  l2t_main_t *lm = &l2t_main;
-
-  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (input, "lookup-v6-src"))
-	lm->lookup_type = L2T_LOOKUP_SRC_ADDRESS;
-      else if (unformat (input, "lookup-v6-dst"))
-	lm->lookup_type = L2T_LOOKUP_DST_ADDRESS;
-      else if (unformat (input, "lookup-session-id"))
-	lm->lookup_type = L2T_LOOKUP_SESSION_ID;
-      else
-	return clib_error_return (0, "unknown input `%U'",
-				  format_unformat_error, input);
-    }
-  return 0;
-}
-
-VLIB_CONFIG_FUNCTION (l2tp_config, "l2tp");
-
-clib_error_t *
-l2t_ip6_init (vlib_main_t * vm)
-{
-  l2t_main_t *lm = &l2t_main;
-
-  lm->vnet_main = vnet_get_main ();
-  lm->vlib_main = vm;
-  lm->lookup_type = L2T_LOOKUP_DST_ADDRESS;
-
-  lm->session_by_src_address = hash_create_mem
-    (0, sizeof (ip6_address_t) /* key bytes */ ,
-     sizeof (u32) /* value bytes */ );
-  lm->session_by_dst_address = hash_create_mem
-    (0, sizeof (ip6_address_t) /* key bytes */ ,
-     sizeof (u32) /* value bytes */ );
-  lm->session_by_session_id = hash_create (0, sizeof (uword));
-
-  lm->session_by_vlan_and_rx_sw_if_index = hash_create (0, sizeof (uword));
-
-#if DPDK == 0
-  vice_set_next_node (VICE_RX_NEXT_IP6_INPUT, "ip6-l2t-input");
-  ixgev_set_next_node (IXGEV_RX_NEXT_IP6_INPUT, "ip6-l2t-input");
-  ixge_set_next_node (IXGE_RX_NEXT_IP6_INPUT, "ip6-l2t-input");
-  ige_set_next_node (IGE_RX_NEXT_IP6_INPUT, "ip6-l2t-input");
-#else
-  dpdk_set_next_node (DPDK_RX_NEXT_IP6_INPUT, "ip6-l2t-input");
-#endif
-  return 0;
-}
-
-VLIB_INIT_FUNCTION (l2t_ip6_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */