MAP: Move MAP-E/T to a plugin.

Only remaining traces of MAP in the src/vnet is now in buffer.h.
Awaiting a new buffer opaque API (hint, hint).

Change-Id: Ie165561484731f1d7ed6e0f604b43624e06db3f0
Signed-off-by: Ole Troan <ot@cisco.com>

1 files changed, 311 insertions, 0 deletions

diff --git a/src/plugins/map/map_api.c b/src/plugins/map/map_api.c
new file mode 100644
index 00000000000..90dbd1bcfd6
--- /dev/null
+++ b/src/plugins/map/map_api.c
@@ -0,0 +1,311 @@
+/*
+ *------------------------------------------------------------------
+ * map_api.c - vnet map api
+ *
+ * Copyright (c) 2016 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 <map/map.h>
+#include <map/map_msg_enum.h>
+#include <vnet/ip/ip.h>
+#include <vnet/fib/fib_table.h>
+#include <vlibmemory/api.h>
+
+#define vl_typedefs		/* define message structures */
+#include <map/map_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun		/* define message structures */
+#include <map/map_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <map/map_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <map/map_all_api_h.h>
+#undef vl_api_version
+
+#define REPLY_MSG_ID_BASE mm->msg_id_base
+#include <vlibapi/api_helper_macros.h>
+
+static void
+vl_api_map_add_domain_t_handler (vl_api_map_add_domain_t * mp)
+{
+  map_main_t *mm = &map_main;
+  vl_api_map_add_domain_reply_t *rmp;
+  int rv = 0;
+  u32 index;
+  u8 flags = 0;
+
+  if (mp->is_translation)
+    flags |= MAP_DOMAIN_TRANSLATION;
+
+  if (mp->is_rfc6052)
+    flags |= MAP_DOMAIN_RFC6052;
+
+  rv =
+    map_create_domain ((ip4_address_t *) & mp->ip4_prefix, mp->ip4_prefix_len,
+		       (ip6_address_t *) & mp->ip6_prefix, mp->ip6_prefix_len,
+		       (ip6_address_t *) & mp->ip6_src,
+		       mp->ip6_src_prefix_len, mp->ea_bits_len,
+		       mp->psid_offset, mp->psid_length, &index,
+		       ntohs (mp->mtu), flags);
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO2(VL_API_MAP_ADD_DOMAIN_REPLY,
+  ({
+    rmp->index = ntohl(index);
+  }));
+  /* *INDENT-ON* */
+}
+
+static void
+vl_api_map_del_domain_t_handler (vl_api_map_del_domain_t * mp)
+{
+  map_main_t *mm = &map_main;
+  vl_api_map_del_domain_reply_t *rmp;
+  int rv = 0;
+
+  rv = map_delete_domain (ntohl (mp->index));
+
+  REPLY_MACRO (VL_API_MAP_DEL_DOMAIN_REPLY);
+}
+
+static void
+vl_api_map_add_del_rule_t_handler (vl_api_map_add_del_rule_t * mp)
+{
+  map_main_t *mm = &map_main;
+  vl_api_map_del_domain_reply_t *rmp;
+  int rv = 0;
+
+  rv =
+    map_add_del_psid (ntohl (mp->index), ntohs (mp->psid),
+		      (ip6_address_t *) mp->ip6_dst, mp->is_add);
+
+  REPLY_MACRO (VL_API_MAP_ADD_DEL_RULE_REPLY);
+}
+
+static void
+vl_api_map_domain_dump_t_handler (vl_api_map_domain_dump_t * mp)
+{
+  vl_api_map_domain_details_t *rmp;
+  map_main_t *mm = &map_main;
+  map_domain_t *d;
+  vl_api_registration_t *reg;
+
+  if (pool_elts (mm->domains) == 0)
+    return;
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  /* *INDENT-OFF* */
+  pool_foreach(d, mm->domains,
+  ({
+    /* Make sure every field is initiated (or don't skip the memset()) */
+    rmp = vl_msg_api_alloc (sizeof (*rmp));
+    rmp->_vl_msg_id = htons(VL_API_MAP_DOMAIN_DETAILS + mm->msg_id_base);
+    rmp->context = mp->context;
+    rmp->domain_index = htonl(d - mm->domains);
+    clib_memcpy(rmp->ip6_prefix, &d->ip6_prefix, sizeof(rmp->ip6_prefix));
+    clib_memcpy(rmp->ip4_prefix, &d->ip4_prefix, sizeof(rmp->ip4_prefix));
+    clib_memcpy(rmp->ip6_src, &d->ip6_src, sizeof(rmp->ip6_src));
+    rmp->ip6_prefix_len = d->ip6_prefix_len;
+    rmp->ip4_prefix_len = d->ip4_prefix_len;
+    rmp->ip6_src_len = d->ip6_src_len;
+    rmp->ea_bits_len = d->ea_bits_len;
+    rmp->psid_offset = d->psid_offset;
+    rmp->psid_length = d->psid_length;
+    rmp->flags = d->flags;
+    rmp->mtu = htons(d->mtu);
+    rmp->is_translation = (d->flags & MAP_DOMAIN_TRANSLATION); // Redundant
+
+    vl_api_send_msg (reg, (u8 *) rmp);
+  }));
+  /* *INDENT-ON* */
+}
+
+static void
+vl_api_map_rule_dump_t_handler (vl_api_map_rule_dump_t * mp)
+{
+  vl_api_registration_t *reg;
+  u16 i;
+  ip6_address_t dst;
+  vl_api_map_rule_details_t *rmp;
+  map_main_t *mm = &map_main;
+  u32 domain_index = ntohl (mp->domain_index);
+  map_domain_t *d;
+
+  if (pool_elts (mm->domains) == 0)
+    return;
+
+  d = pool_elt_at_index (mm->domains, domain_index);
+  if (!d || !d->rules)
+    {
+      return;
+    }
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  for (i = 0; i < (0x1 << d->psid_length); i++)
+    {
+      dst = d->rules[i];
+      if (dst.as_u64[0] == 0 && dst.as_u64[1] == 0)
+	{
+	  continue;
+	}
+      rmp = vl_msg_api_alloc (sizeof (*rmp));
+      memset (rmp, 0, sizeof (*rmp));
+      rmp->_vl_msg_id = ntohs (VL_API_MAP_RULE_DETAILS + mm->msg_id_base);
+      rmp->psid = htons (i);
+      clib_memcpy (rmp->ip6_dst, &dst, sizeof (rmp->ip6_dst));
+      rmp->context = mp->context;
+      vl_api_send_msg (reg, (u8 *) rmp);
+    }
+}
+
+static void
+vl_api_map_summary_stats_t_handler (vl_api_map_summary_stats_t * mp)
+{
+  vl_api_map_summary_stats_reply_t *rmp;
+  vlib_combined_counter_main_t *cm;
+  vlib_counter_t v;
+  int i, which;
+  u64 total_pkts[VLIB_N_RX_TX];
+  u64 total_bytes[VLIB_N_RX_TX];
+  map_main_t *mm = &map_main;
+  vl_api_registration_t *reg;
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  rmp = vl_msg_api_alloc (sizeof (*rmp));
+  rmp->_vl_msg_id = htons (VL_API_MAP_SUMMARY_STATS_REPLY + mm->msg_id_base);
+  rmp->context = mp->context;
+  rmp->retval = 0;
+
+  if (pool_elts (mm->domains) == 0)
+    {
+      rmp->retval = -1;
+      goto out;
+    }
+
+  memset (total_pkts, 0, sizeof (total_pkts));
+  memset (total_bytes, 0, sizeof (total_bytes));
+
+  map_domain_counter_lock (mm);
+  vec_foreach (cm, mm->domain_counters)
+  {
+    which = cm - mm->domain_counters;
+
+    for (i = 0; i < vlib_combined_counter_n_counters (cm); i++)
+      {
+	vlib_get_combined_counter (cm, i, &v);
+	total_pkts[which] += v.packets;
+	total_bytes[which] += v.bytes;
+      }
+  }
+
+  map_domain_counter_unlock (mm);
+
+  /* Note: in network byte order! */
+  rmp->total_pkts[MAP_DOMAIN_COUNTER_RX] =
+    clib_host_to_net_u64 (total_pkts[MAP_DOMAIN_COUNTER_RX]);
+  rmp->total_bytes[MAP_DOMAIN_COUNTER_RX] =
+    clib_host_to_net_u64 (total_bytes[MAP_DOMAIN_COUNTER_RX]);
+  rmp->total_pkts[MAP_DOMAIN_COUNTER_TX] =
+    clib_host_to_net_u64 (total_pkts[MAP_DOMAIN_COUNTER_TX]);
+  rmp->total_bytes[MAP_DOMAIN_COUNTER_TX] =
+    clib_host_to_net_u64 (total_bytes[MAP_DOMAIN_COUNTER_TX]);
+  rmp->total_bindings = clib_host_to_net_u64 (pool_elts (mm->domains));
+  rmp->total_ip4_fragments = 0;	// Not yet implemented. Should be a simple counter.
+  rmp->total_security_check[MAP_DOMAIN_COUNTER_TX] =
+    clib_host_to_net_u64 (map_error_counter_get
+			  (ip4_map_node.index, MAP_ERROR_ENCAP_SEC_CHECK));
+  rmp->total_security_check[MAP_DOMAIN_COUNTER_RX] =
+    clib_host_to_net_u64 (map_error_counter_get
+			  (ip4_map_node.index, MAP_ERROR_DECAP_SEC_CHECK));
+
+out:
+  vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+#define foreach_map_plugin_api_msg		\
+_(MAP_ADD_DOMAIN, map_add_domain)		\
+_(MAP_DEL_DOMAIN, map_del_domain)		\
+_(MAP_ADD_DEL_RULE, map_add_del_rule)		\
+_(MAP_DOMAIN_DUMP, map_domain_dump)		\
+_(MAP_RULE_DUMP, map_rule_dump)			\
+_(MAP_SUMMARY_STATS, map_summary_stats)
+
+#define vl_msg_name_crc_list
+#include <map/map_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (map_main_t * mm, api_main_t * am)
+{
+#define _(id,n,crc)							\
+  vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + mm->msg_id_base);
+  foreach_vl_msg_name_crc_map;
+#undef _
+}
+
+/* Set up the API message handling tables */
+clib_error_t *
+map_plugin_api_hookup (vlib_main_t * vm)
+{
+  map_main_t *mm = &map_main;
+  u8 *name = format (0, "map_%08x%c", api_version, 0);
+
+  /* Ask for a correctly-sized block of API message decode slots */
+  mm->msg_id_base =
+    vl_msg_api_get_msg_ids ((char *) name, VL_MSG_FIRST_AVAILABLE);
+#define _(N,n)                                                  \
+    vl_msg_api_set_handlers((VL_API_##N + mm->msg_id_base),     \
+                           #n,					\
+                           vl_api_##n##_t_handler,              \
+                           vl_noop_handler,                     \
+                           vl_api_##n##_t_endian,               \
+                           vl_api_##n##_t_print,                \
+                           sizeof(vl_api_##n##_t), 1);
+  foreach_map_plugin_api_msg;
+#undef _
+
+  /*
+   * Set up the (msg_name, crc, message-id) table
+   */
+  setup_message_id_table (mm, &api_main);
+
+  vec_free (name);
+  return 0;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */