lldp: Move to plugin

Type: refactor

Change-Id: Ifd770ff4850e63474bf4682ad463021b03786b4b
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 156 insertions, 0 deletions

diff --git a/src/plugins/lldp/lldp_node.h b/src/plugins/lldp/lldp_node.h
new file mode 100644
index 00000000000..887a70f137f
--- /dev/null
+++ b/src/plugins/lldp/lldp_node.h
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2011-2016 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.
+ */
+/**
+ * @file
+ * @brief LLDP global declarations
+ */
+#ifndef __included_lldp_node_h__
+#define __included_lldp_node_h__
+
+#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+#include <vnet/snap/snap.h>
+#include <vppinfra/format.h>
+#include <vppinfra/hash.h>
+
+#include <lldp/lldp_protocol.h>
+
+typedef struct lldp_intf
+{
+  /* hw interface index */
+  u32 hw_if_index;
+
+  /* Timers */
+  f64 last_heard;
+  f64 last_sent;
+
+  /* Info received from peer */
+  u8 *chassis_id;
+  u8 *port_id;
+  u16 ttl;
+  lldp_port_id_subtype_t port_id_subtype;
+  lldp_chassis_id_subtype_t chassis_id_subtype;
+
+  /* Local info */
+  u8 *port_desc;
+
+  /* management ipv4 address */
+  u8 *mgmt_ip4;
+
+  /* management ipv6 address */
+  u8 *mgmt_ip6;
+
+  /* management object identifier */
+  u8 *mgmt_oid;
+} lldp_intf_t;
+
+typedef struct
+{
+  /* pool of lldp-enabled interface context data */
+  lldp_intf_t *intfs;
+
+  /* rapidly find an interface by vlib hw interface index */
+  uword *intf_by_hw_if_index;
+
+  /* Background process node index */
+  u32 lldp_process_node_index;
+
+  /* interface idxs (into intfs pool) in the order of timing out */
+  u32 *intfs_timeouts;
+
+  /* index of the interface which will time out next */
+  u32 intfs_timeouts_idx;
+
+  /* packet template for sending out packets */
+  vlib_packet_template_t packet_template;
+
+  /* convenience variables */
+  vlib_main_t *vlib_main;
+  vnet_main_t *vnet_main;
+
+  /* system name advertised over LLDP (default is none) */
+  u8 *sys_name;
+
+  /* IEEE Std 802.1AB-2009:
+   * 9.2.5.6 msgTxHold
+   * This variable is used, as a multiplier of msgTxInterval, to determine the
+   * value of txTTL that is carried in LLDP frames transmitted by the LLDP
+   * agent. The recommended default value of msgTxHold is 4; this value can
+   * be changed by management to any value in the range 1 through 100.
+   */
+  u8 msg_tx_hold;
+
+  /* IEEE Std 802.1AB-2009:
+   * 9.2.5.7 msgTxInterval
+   * This variable defines the time interval in timer ticks between
+   * transmissions during normal transmission periods (i.e., txFast is zero).
+   * The recommended default value for msgTxInterval is 30 s; this value can
+   * be changed by management to any value in the range 1 through 3600.
+   */
+  u16 msg_tx_interval;
+} lldp_main_t;
+
+#define LLDP_MIN_TX_HOLD (1)
+#define LLDP_MAX_TX_HOLD (100)
+#define LLDP_MIN_TX_INTERVAL (1)
+#define LLDP_MAX_TX_INTERVAL (3600)
+
+extern lldp_main_t lldp_main;
+
+/* Packet counters */
+#define foreach_lldp_error(F)                     \
+    F(NONE, "good lldp packets (processed)")      \
+    F(CACHE_HIT, "good lldp packets (cache hit)") \
+    F(BAD_TLV, "lldp packets with bad TLVs")      \
+    F(DISABLED, "lldp packets received on disabled interfaces")
+
+typedef enum
+{
+#define F(sym, str) LLDP_ERROR_##sym,
+  foreach_lldp_error (F)
+#undef F
+    LLDP_N_ERROR,
+} lldp_error_t;
+
+/* lldp packet trace capture */
+typedef struct
+{
+  u32 len;
+  u8 data[400];
+} lldp_input_trace_t;
+
+typedef enum
+{
+  LLDP_EVENT_RESCHEDULE = 1,
+} lldp_process_event_t;
+
+lldp_intf_t *lldp_get_intf (lldp_main_t * lm, u32 hw_if_index);
+lldp_intf_t *lldp_create_intf (lldp_main_t * lm, u32 hw_if_index);
+void lldp_delete_intf (lldp_main_t * lm, lldp_intf_t * n);
+lldp_error_t lldp_input (vlib_main_t * vm, vlib_buffer_t * b0, u32 bi0);
+u8 *lldp_input_format_trace (u8 * s, va_list * args);
+void lldp_send_ethernet (lldp_main_t * lm, lldp_intf_t * n, int shutdown);
+void lldp_schedule_intf (lldp_main_t * lm, lldp_intf_t * n);
+void lldp_unschedule_intf (lldp_main_t * lm, lldp_intf_t * n);
+
+#endif /* __included_lldp_node_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */