From 3f9fdd98463bd926fc78a2b366875c929058e2db Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Fri, 18 Sep 2020 12:58:40 +0000 Subject: lldp: Move to plugin Type: refactor Change-Id: Ifd770ff4850e63474bf4682ad463021b03786b4b Signed-off-by: Neale Ranns --- src/plugins/lldp/lldp_node.h | 156 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 156 insertions(+) create mode 100644 src/plugins/lldp/lldp_node.h (limited to 'src/plugins/lldp/lldp_node.h') 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 +#include +#include +#include +#include + +#include + +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: + */ -- cgit 1.2.3-korg