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This command makes unplanned GR more reliable by manipulating the sending of Grace-LSAs and Hello packets for a certain amount of time, increasing the chance that the neighboring routers are aware of the ongoing graceful restart before resuming normal OSPF operation. Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
247 lines
6.3 KiB
C
247 lines
6.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2003 Yasuhiro Ohara
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*/
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#ifndef OSPF6_INTERFACE_H
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#define OSPF6_INTERFACE_H
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#include "qobj.h"
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#include "hook.h"
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#include "if.h"
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#include "ospf6d.h"
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DECLARE_MTYPE(OSPF6_AUTH_MANUAL_KEY);
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/* Debug option */
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extern unsigned char conf_debug_ospf6_interface;
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#define OSPF6_DEBUG_INTERFACE_ON() (conf_debug_ospf6_interface = 1)
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#define OSPF6_DEBUG_INTERFACE_OFF() (conf_debug_ospf6_interface = 0)
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#define IS_OSPF6_DEBUG_INTERFACE (conf_debug_ospf6_interface)
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struct ospf6_auth_data {
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/* config data */
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uint8_t hash_algo; /* hash algorithm type */
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uint16_t key_id; /* key-id used as SA in auth packet */
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char *auth_key; /* Auth key */
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char *keychain; /* keychain name */
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/* operational data */
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uint8_t flags; /* Flags related to auth config */
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/* Counters and Statistics */
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uint32_t tx_drop; /* Pkt drop due to auth fail while sending */
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uint32_t rx_drop; /* Pkt drop due to auth fail while reading */
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};
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/* Interface structure */
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struct ospf6_interface {
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/* IF info from zebra */
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struct interface *interface;
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/* back pointer */
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struct ospf6_area *area;
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uint32_t area_id;
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int area_id_format;
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/* list of ospf6 neighbor */
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struct list *neighbor_list;
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/* linklocal address of this I/F */
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struct in6_addr *linklocal_addr;
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/* Interface ID; use interface->ifindex */
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/* ospf6 instance id */
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uint8_t instance_id;
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/* I/F transmission delay */
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uint32_t transdelay;
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/* Packet send buffer. */
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struct ospf6_fifo *obuf; /* Output queue */
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/* Network Type */
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uint8_t type;
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bool type_cfg;
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/* Router Priority */
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uint8_t priority;
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/* Time Interval */
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uint16_t hello_interval;
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uint16_t dead_interval;
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uint32_t rxmt_interval;
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/* Graceful-Restart data. */
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struct {
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struct {
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uint16_t interval;
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uint16_t elapsed_seconds;
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struct event *t_grace_send;
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} hello_delay;
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} gr;
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uint32_t state_change;
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/* Cost */
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uint32_t cost;
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/* I/F MTU */
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uint32_t ifmtu;
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/* Configured MTU */
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uint32_t c_ifmtu;
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/* Interface State */
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uint8_t state;
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/* Interface socket setting trial counter, resets on success */
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uint8_t sso_try_cnt;
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struct event *thread_sso;
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/* OSPF6 Interface flag */
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char flag;
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/* MTU mismatch check */
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uint8_t mtu_ignore;
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/* Authentication trailer related config */
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struct ospf6_auth_data at_data;
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/* Decision of DR Election */
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in_addr_t drouter;
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in_addr_t bdrouter;
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in_addr_t prev_drouter;
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in_addr_t prev_bdrouter;
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/* Linklocal LSA Database: includes Link-LSA */
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struct ospf6_lsdb *lsdb;
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struct ospf6_lsdb *lsdb_self;
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struct ospf6_lsdb *lsupdate_list;
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struct ospf6_lsdb *lsack_list;
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/* Ongoing Tasks */
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struct event *thread_send_hello;
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struct event *thread_send_lsupdate;
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struct event *thread_send_lsack;
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struct event *thread_network_lsa;
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struct event *thread_link_lsa;
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struct event *thread_intra_prefix_lsa;
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struct event *thread_as_extern_lsa;
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struct event *thread_wait_timer;
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struct ospf6_route_table *route_connected;
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/* last hello sent */
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struct timeval last_hello;
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/* prefix-list name to filter connected prefix */
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char *plist_name;
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/* BFD information */
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struct {
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bool enabled;
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uint8_t detection_multiplier;
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uint32_t min_rx;
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uint32_t min_tx;
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char *profile;
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} bfd_config;
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int on_write_q;
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/* Statistics Fields */
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uint32_t hello_in;
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uint32_t hello_out;
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uint32_t db_desc_in;
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uint32_t db_desc_out;
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uint32_t ls_req_in;
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uint32_t ls_req_out;
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uint32_t ls_upd_in;
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uint32_t ls_upd_out;
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uint32_t ls_ack_in;
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uint32_t ls_ack_out;
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uint32_t discarded;
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QOBJ_FIELDS;
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};
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DECLARE_QOBJ_TYPE(ospf6_interface);
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/* interface state */
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#define OSPF6_INTERFACE_NONE 0
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#define OSPF6_INTERFACE_DOWN 1
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#define OSPF6_INTERFACE_LOOPBACK 2
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#define OSPF6_INTERFACE_WAITING 3
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#define OSPF6_INTERFACE_POINTTOPOINT 4
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#define OSPF6_INTERFACE_DROTHER 5
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#define OSPF6_INTERFACE_BDR 6
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#define OSPF6_INTERFACE_DR 7
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#define OSPF6_INTERFACE_MAX 8
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extern const char *const ospf6_interface_state_str[];
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/* flags */
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#define OSPF6_INTERFACE_DISABLE 0x01
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#define OSPF6_INTERFACE_PASSIVE 0x02
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#define OSPF6_INTERFACE_NOAUTOCOST 0x04
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/* default values */
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#define OSPF6_INTERFACE_HELLO_INTERVAL 10
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#define OSPF6_INTERFACE_DEAD_INTERVAL 40
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#define OSPF6_INTERFACE_RXMT_INTERVAL 5
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#define OSPF6_INTERFACE_COST 1
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#define OSPF6_INTERFACE_PRIORITY 1
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#define OSPF6_INTERFACE_TRANSDELAY 1
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#define OSPF6_INTERFACE_INSTANCE_ID 0
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#define OSPF6_INTERFACE_BANDWIDTH 10000 /* Mbps */
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#define OSPF6_REFERENCE_BANDWIDTH 100000 /* Mbps */
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#define OSPF6_INTERFACE_SSO_RETRY_INT 1
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#define OSPF6_INTERFACE_SSO_RETRY_MAX 5
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/* Function Prototypes */
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extern void ospf6_interface_start(struct ospf6_interface *oi);
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extern void ospf6_interface_stop(struct ospf6_interface *oi);
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extern struct ospf6_interface *
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ospf6_interface_lookup_by_ifindex(ifindex_t, vrf_id_t vrf_id);
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extern struct ospf6_interface *ospf6_interface_create(struct interface *ifp);
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extern void ospf6_interface_delete(struct ospf6_interface *oi);
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extern void ospf6_interface_enable(struct ospf6_interface *oi);
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extern void ospf6_interface_disable(struct ospf6_interface *oi);
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extern void ospf6_interface_state_update(struct interface *ifp);
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extern void ospf6_interface_connected_route_update(struct interface *ifp);
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extern struct in6_addr *
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ospf6_interface_get_global_address(struct interface *ifp);
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/* interface event */
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extern void interface_up(struct event *thread);
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extern void interface_down(struct event *thread);
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extern void wait_timer(struct event *thread);
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extern void backup_seen(struct event *thread);
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extern void neighbor_change(struct event *thread);
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extern void ospf6_interface_init(void);
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extern void ospf6_interface_clear(struct interface *ifp);
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extern void install_element_ospf6_clear_interface(void);
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extern int config_write_ospf6_debug_interface(struct vty *vty);
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extern void install_element_ospf6_debug_interface(void);
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extern int ospf6_interface_neighbor_count(struct ospf6_interface *oi);
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extern uint8_t dr_election(struct ospf6_interface *oi);
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extern void ospf6_interface_auth_trailer_cmd_init(void);
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extern void ospf6_auth_write_config(struct vty *vty,
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struct ospf6_auth_data *at_data);
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DECLARE_HOOK(ospf6_interface_change,
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(struct ospf6_interface * oi, int state, int old_state),
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(oi, state, old_state));
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#endif /* OSPF6_INTERFACE_H */
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