From 2c7cac91ed6e7db0f6937923d2b57f97dbdbc337 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:53:30 +0200 Subject: Adding upstream version 8.4.4. Signed-off-by: Daniel Baumann --- ospfd/ospf_neighbor.h | 120 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 ospfd/ospf_neighbor.h (limited to 'ospfd/ospf_neighbor.h') diff --git a/ospfd/ospf_neighbor.h b/ospfd/ospf_neighbor.h new file mode 100644 index 0000000..433b136 --- /dev/null +++ b/ospfd/ospf_neighbor.h @@ -0,0 +1,120 @@ +/* + * OSPF Neighbor functions. + * Copyright (C) 1999, 2000 Toshiaki Takada + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published + * by the Free Software Foundation; either version 2, or (at your + * option) any later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _ZEBRA_OSPF_NEIGHBOR_H +#define _ZEBRA_OSPF_NEIGHBOR_H + +#include +#include + +/* Neighbor Data Structure */ +struct ospf_neighbor { + /* This neighbor's parent ospf interface. */ + struct ospf_interface *oi; + + /* OSPF neighbor Information */ + uint8_t state; /* NSM status. */ + uint8_t dd_flags; /* DD bit flags. */ + uint32_t dd_seqnum; /* DD Sequence Number. */ + + /* Neighbor Information from Hello. */ + struct prefix address; /* Neighbor Interface Address. */ + + struct in_addr src; /* Src address. */ + struct in_addr router_id; /* Router ID. */ + uint8_t options; /* Options. */ + int priority; /* Router Priority. */ + struct in_addr d_router; /* Designated Router. */ + struct in_addr bd_router; /* Backup Designated Router. */ + + /* Last sent Database Description packet. */ + struct ospf_packet *last_send; + /* Timestemp when last Database Description packet was sent */ + struct timeval last_send_ts; + + /* Last received Databse Description packet. */ + struct { + uint8_t options; + uint8_t flags; + uint32_t dd_seqnum; + } last_recv; + + /* LSA data. */ + struct ospf_lsdb ls_rxmt; + struct ospf_lsdb db_sum; + struct ospf_lsdb ls_req; + struct ospf_lsa *ls_req_last; + + uint32_t crypt_seqnum; /* Cryptographic Sequence Number. */ + + /* Timer values. */ + uint32_t v_inactivity; + uint32_t v_db_desc; + uint32_t v_ls_req; + uint32_t v_ls_upd; + + /* Threads. */ + struct thread *t_inactivity; + struct thread *t_db_desc; + struct thread *t_ls_req; + struct thread *t_ls_upd; + struct thread *t_hello_reply; + + /* NBMA configured neighbour */ + struct ospf_nbr_nbma *nbr_nbma; + + /* Statistics */ + struct timeval ts_last_progress; /* last advance of NSM */ + struct timeval ts_last_regress; /* last regressive NSM change */ + const char *last_regress_str; /* Event which last regressed NSM */ + uint32_t state_change; /* NSM state change counter */ + + /* BFD information */ + struct bfd_session_params *bfd_session; + + /* ospf graceful restart HELPER info */ + struct ospf_helper_info gr_helper_info; +}; + +/* Macros. */ +#define NBR_IS_DR(n) IPV4_ADDR_SAME (&n->address.u.prefix4, &n->d_router) +#define NBR_IS_BDR(n) IPV4_ADDR_SAME (&n->address.u.prefix4, &n->bd_router) + +/* Prototypes. */ +extern struct ospf_neighbor *ospf_nbr_new(struct ospf_interface *); +extern void ospf_nbr_free(struct ospf_neighbor *); +extern void ospf_nbr_delete(struct ospf_neighbor *); +extern int ospf_nbr_bidirectional(struct in_addr *, struct in_addr *, int); +extern void ospf_nbr_self_reset(struct ospf_interface *, struct in_addr); +extern void ospf_nbr_add_self(struct ospf_interface *, struct in_addr); +extern int ospf_nbr_count(struct ospf_interface *, int); +extern int ospf_nbr_count_opaque_capable(struct ospf_interface *); +extern struct ospf_neighbor *ospf_nbr_get(struct ospf_interface *, + struct ospf_header *, struct ip *, + struct prefix *); +extern struct ospf_neighbor *ospf_nbr_lookup(struct ospf_interface *, + struct ip *, struct ospf_header *); +extern struct ospf_neighbor *ospf_nbr_lookup_by_addr(struct route_table *, + struct in_addr *); +extern struct ospf_neighbor *ospf_nbr_lookup_by_routerid(struct route_table *, + struct in_addr *); +extern void ospf_renegotiate_optional_capabilities(struct ospf *top); +#endif /* _ZEBRA_OSPF_NEIGHBOR_H */ -- cgit v1.2.3