3f9fdd9846
Type: refactor Change-Id: Ifd770ff4850e63474bf4682ad463021b03786b4b Signed-off-by: Neale Ranns <nranns@cisco.com>
157 lines
4.2 KiB
C
157 lines
4.2 KiB
C
/*
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* Copyright (c) 2011-2016 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file
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* @brief LLDP global declarations
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*/
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#ifndef __included_lldp_node_h__
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#define __included_lldp_node_h__
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#include <vlib/vlib.h>
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#include <vlib/unix/unix.h>
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#include <vnet/snap/snap.h>
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#include <vppinfra/format.h>
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#include <vppinfra/hash.h>
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#include <lldp/lldp_protocol.h>
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typedef struct lldp_intf
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{
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/* hw interface index */
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u32 hw_if_index;
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/* Timers */
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f64 last_heard;
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f64 last_sent;
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/* Info received from peer */
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u8 *chassis_id;
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u8 *port_id;
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u16 ttl;
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lldp_port_id_subtype_t port_id_subtype;
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lldp_chassis_id_subtype_t chassis_id_subtype;
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/* Local info */
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u8 *port_desc;
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/* management ipv4 address */
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u8 *mgmt_ip4;
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/* management ipv6 address */
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u8 *mgmt_ip6;
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/* management object identifier */
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u8 *mgmt_oid;
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} lldp_intf_t;
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typedef struct
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{
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/* pool of lldp-enabled interface context data */
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lldp_intf_t *intfs;
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/* rapidly find an interface by vlib hw interface index */
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uword *intf_by_hw_if_index;
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/* Background process node index */
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u32 lldp_process_node_index;
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/* interface idxs (into intfs pool) in the order of timing out */
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u32 *intfs_timeouts;
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/* index of the interface which will time out next */
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u32 intfs_timeouts_idx;
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/* packet template for sending out packets */
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vlib_packet_template_t packet_template;
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/* convenience variables */
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vlib_main_t *vlib_main;
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vnet_main_t *vnet_main;
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/* system name advertised over LLDP (default is none) */
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u8 *sys_name;
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/* IEEE Std 802.1AB-2009:
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* 9.2.5.6 msgTxHold
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* This variable is used, as a multiplier of msgTxInterval, to determine the
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* value of txTTL that is carried in LLDP frames transmitted by the LLDP
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* agent. The recommended default value of msgTxHold is 4; this value can
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* be changed by management to any value in the range 1 through 100.
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*/
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u8 msg_tx_hold;
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/* IEEE Std 802.1AB-2009:
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* 9.2.5.7 msgTxInterval
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* This variable defines the time interval in timer ticks between
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* transmissions during normal transmission periods (i.e., txFast is zero).
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* The recommended default value for msgTxInterval is 30 s; this value can
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* be changed by management to any value in the range 1 through 3600.
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*/
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u16 msg_tx_interval;
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} lldp_main_t;
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#define LLDP_MIN_TX_HOLD (1)
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#define LLDP_MAX_TX_HOLD (100)
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#define LLDP_MIN_TX_INTERVAL (1)
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#define LLDP_MAX_TX_INTERVAL (3600)
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extern lldp_main_t lldp_main;
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/* Packet counters */
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#define foreach_lldp_error(F) \
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F(NONE, "good lldp packets (processed)") \
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F(CACHE_HIT, "good lldp packets (cache hit)") \
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F(BAD_TLV, "lldp packets with bad TLVs") \
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F(DISABLED, "lldp packets received on disabled interfaces")
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typedef enum
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{
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#define F(sym, str) LLDP_ERROR_##sym,
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foreach_lldp_error (F)
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#undef F
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LLDP_N_ERROR,
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} lldp_error_t;
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/* lldp packet trace capture */
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typedef struct
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{
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u32 len;
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u8 data[400];
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} lldp_input_trace_t;
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typedef enum
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{
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LLDP_EVENT_RESCHEDULE = 1,
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} lldp_process_event_t;
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lldp_intf_t *lldp_get_intf (lldp_main_t * lm, u32 hw_if_index);
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lldp_intf_t *lldp_create_intf (lldp_main_t * lm, u32 hw_if_index);
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void lldp_delete_intf (lldp_main_t * lm, lldp_intf_t * n);
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lldp_error_t lldp_input (vlib_main_t * vm, vlib_buffer_t * b0, u32 bi0);
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u8 *lldp_input_format_trace (u8 * s, va_list * args);
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void lldp_send_ethernet (lldp_main_t * lm, lldp_intf_t * n, int shutdown);
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void lldp_schedule_intf (lldp_main_t * lm, lldp_intf_t * n);
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void lldp_unschedule_intf (lldp_main_t * lm, lldp_intf_t * n);
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#endif /* __included_lldp_node_h__ */
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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