/* $OpenBSD: ospfd.h,v 1.108 2021/01/19 09:37:53 claudio Exp $ */ /* * Copyright (c) 2004 Esben Norby * Copyright (c) 2003, 2004 Henning Brauer * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _OSPFD_H_ #define _OSPFD_H_ #include #include #include #include #include #include #include #include #include #include "ospf.h" #include "log.h" #define CONF_FILE "/etc/ospfd.conf" #define OSPFD_SOCKET "/var/run/ospfd.sock" #define OSPFD_USER "_ospfd" #define NBR_HASHSIZE 128 #define LSA_HASHSIZE 512 #define NBR_IDSELF 1 #define NBR_CNTSTART (NBR_IDSELF + 1) #define READ_BUF_SIZE 65535 #define PKG_DEF_SIZE 512 /* compromise */ #define RT_BUF_SIZE 16384 #define MAX_RTSOCK_BUF (2 * 1024 * 1024) #define OSPFD_FLAG_NO_FIB_UPDATE 0x0001 #define OSPFD_FLAG_STUB_ROUTER 0x0002 #define F_OSPFD_INSERTED 0x0001 #define F_KERNEL 0x0002 #define F_CONNECTED 0x0004 #define F_STATIC 0x0008 #define F_DYNAMIC 0x0010 #define F_DOWN 0x0020 #define F_REJECT 0x0040 #define F_BLACKHOLE 0x0080 #define F_REDISTRIBUTED 0x0100 static const char * const log_procnames[] = { "parent", "ospfe", "rde" }; struct imsgev { struct imsgbuf ibuf; void (*handler)(int, short, void *); struct event ev; void *data; short events; }; enum imsg_type { IMSG_NONE, IMSG_CTL_RELOAD, IMSG_CTL_SHOW_INTERFACE, IMSG_CTL_SHOW_DATABASE, IMSG_CTL_SHOW_DB_EXT, IMSG_CTL_SHOW_DB_NET, IMSG_CTL_SHOW_DB_RTR, IMSG_CTL_SHOW_DB_SELF, IMSG_CTL_SHOW_DB_SUM, IMSG_CTL_SHOW_DB_ASBR, IMSG_CTL_SHOW_DB_OPAQ, IMSG_CTL_SHOW_NBR, IMSG_CTL_SHOW_RIB, IMSG_CTL_SHOW_SUM, IMSG_CTL_SHOW_SUM_AREA, IMSG_CTL_FIB_COUPLE, IMSG_CTL_FIB_DECOUPLE, IMSG_CTL_FIB_RELOAD, IMSG_CTL_AREA, IMSG_CTL_IFACE, IMSG_CTL_KROUTE, IMSG_CTL_KROUTE_ADDR, IMSG_CTL_IFINFO, IMSG_CTL_END, IMSG_CTL_LOG_VERBOSE, IMSG_CONTROLFD, IMSG_KROUTE_CHANGE, IMSG_KROUTE_DELETE, IMSG_IFINFO, IMSG_NEIGHBOR_UP, IMSG_NEIGHBOR_DOWN, IMSG_NEIGHBOR_ADDR, IMSG_NEIGHBOR_CHANGE, IMSG_NEIGHBOR_CAPA, IMSG_NETWORK_ADD, IMSG_NETWORK_DEL, IMSG_AREA_CHANGE, IMSG_DD, IMSG_DD_END, IMSG_DD_BADLSA, IMSG_DB_SNAPSHOT, IMSG_DB_END, IMSG_LS_REQ, IMSG_LS_UPD, IMSG_LS_SNAP, IMSG_LS_ACK, IMSG_LS_FLOOD, IMSG_LS_BADREQ, IMSG_LS_MAXAGE, IMSG_ABR_UP, IMSG_ABR_DOWN, IMSG_RECONF_CONF, IMSG_RECONF_AREA, IMSG_RECONF_IFACE, IMSG_RECONF_AUTHMD, IMSG_RECONF_REDIST, IMSG_RECONF_END, IMSG_DEMOTE, IMSG_IFADDRADD, IMSG_IFADDRDEL }; #define REDIST_CONNECTED 0x01 #define REDIST_STATIC 0x02 #define REDIST_LABEL 0x04 #define REDIST_ADDR 0x08 #define REDIST_NO 0x10 #define REDIST_DEFAULT 0x20 struct redistribute { SIMPLEQ_ENTRY(redistribute) entry; struct in_addr addr; struct in_addr mask; u_int32_t metric; u_int16_t label; u_int16_t type; char dependon[IFNAMSIZ]; }; SIMPLEQ_HEAD(redist_list, redistribute); struct vertex; struct rde_nbr; RB_HEAD(lsa_tree, vertex); struct area { LIST_ENTRY(area) entry; struct in_addr id; struct lsa_tree lsa_tree; LIST_HEAD(, iface) iface_list; LIST_HEAD(, rde_nbr) nbr_list; struct redist_list redist_list; /* list addr_range_list; */ char demote_group[IFNAMSIZ]; u_int32_t stub_default_cost; u_int32_t num_spf_calc; int active; u_int8_t transit; u_int8_t stub; u_int8_t dirty; u_int8_t demote_level; }; /* interface states */ #define IF_STA_NEW 0x00 /* dummy state for reload */ #define IF_STA_DOWN 0x01 #define IF_STA_LOOPBACK 0x02 #define IF_STA_WAITING 0x04 #define IF_STA_POINTTOPOINT 0x08 #define IF_STA_DROTHER 0x10 #define IF_STA_BACKUP 0x20 #define IF_STA_DR 0x40 #define IF_STA_DRORBDR (IF_STA_DR | IF_STA_BACKUP) #define IF_STA_MULTI (IF_STA_DROTHER | IF_STA_BACKUP | IF_STA_DR) #define IF_STA_ANY 0x7f /* interface events */ enum iface_event { IF_EVT_NOTHING, IF_EVT_UP, IF_EVT_WTIMER, IF_EVT_BACKUP_SEEN, IF_EVT_NBR_CHNG, IF_EVT_LOOP, IF_EVT_UNLOOP, IF_EVT_DOWN }; /* interface actions */ enum iface_action { IF_ACT_NOTHING, IF_ACT_STRT, IF_ACT_ELECT, IF_ACT_RST }; /* interface types */ enum iface_type { IF_TYPE_POINTOPOINT, IF_TYPE_BROADCAST, IF_TYPE_NBMA, IF_TYPE_POINTOMULTIPOINT, IF_TYPE_VIRTUALLINK }; /* neighbor states */ #define NBR_STA_DOWN 0x0001 #define NBR_STA_ATTEMPT 0x0002 #define NBR_STA_INIT 0x0004 #define NBR_STA_2_WAY 0x0008 #define NBR_STA_XSTRT 0x0010 #define NBR_STA_SNAP 0x0020 #define NBR_STA_XCHNG 0x0040 #define NBR_STA_LOAD 0x0080 #define NBR_STA_FULL 0x0100 #define NBR_STA_ACTIVE (~NBR_STA_DOWN) #define NBR_STA_FLOOD (NBR_STA_XCHNG | NBR_STA_LOAD | NBR_STA_FULL) #define NBR_STA_ADJFORM (NBR_STA_XSTRT | NBR_STA_SNAP | NBR_STA_FLOOD) #define NBR_STA_BIDIR (NBR_STA_2_WAY | NBR_STA_ADJFORM) #define NBR_STA_PRELIM (NBR_STA_DOWN | NBR_STA_ATTEMPT | NBR_STA_INIT) #define NBR_STA_ANY 0xffff /* neighbor events */ enum nbr_event { NBR_EVT_NOTHING, NBR_EVT_HELLO_RCVD, NBR_EVT_2_WAY_RCVD, NBR_EVT_NEG_DONE, NBR_EVT_SNAP_DONE, NBR_EVT_XCHNG_DONE, NBR_EVT_BAD_LS_REQ, NBR_EVT_LOAD_DONE, NBR_EVT_ADJ_OK, NBR_EVT_SEQ_NUM_MIS, NBR_EVT_1_WAY_RCVD, NBR_EVT_KILL_NBR, NBR_EVT_ITIMER, NBR_EVT_LL_DOWN, NBR_EVT_ADJTMOUT }; /* neighbor actions */ enum nbr_action { NBR_ACT_NOTHING, NBR_ACT_RST_ITIMER, NBR_ACT_STRT_ITIMER, NBR_ACT_EVAL, NBR_ACT_SNAP, NBR_ACT_SNAP_DONE, NBR_ACT_XCHNG_DONE, NBR_ACT_ADJ_OK, NBR_ACT_RESTRT_DD, NBR_ACT_DEL, NBR_ACT_CLR_LST, NBR_ACT_HELLO_CHK }; /* auth types */ enum auth_type { AUTH_NONE, AUTH_SIMPLE, AUTH_CRYPT }; /* spf states */ enum spf_state { SPF_IDLE, SPF_DELAY, SPF_HOLD, SPF_HOLDQUEUE }; enum dst_type { DT_NET, DT_RTR }; enum path_type { PT_INTRA_AREA, PT_INTER_AREA, PT_TYPE1_EXT, PT_TYPE2_EXT }; enum rib_type { RIB_NET = 1, RIB_RTR, RIB_EXT }; struct auth_md { TAILQ_ENTRY(auth_md) entry; char key[MD5_DIGEST_LENGTH]; u_int8_t keyid; }; /* lsa list used in RDE and OE */ TAILQ_HEAD(lsa_head, lsa_entry); TAILQ_HEAD(auth_md_head, auth_md); struct iface { LIST_ENTRY(iface) entry; struct event hello_timer; struct event wait_timer; struct event lsack_tx_timer; LIST_HEAD(, nbr) nbr_list; struct auth_md_head auth_md_list; struct lsa_head ls_ack_list; struct lsa_tree lsa_tree; char name[IF_NAMESIZE]; char demote_group[IFNAMSIZ]; char dependon[IFNAMSIZ]; char auth_key[MAX_SIMPLE_AUTH_LEN]; struct in_addr addr; struct in_addr dst; struct in_addr mask; struct in_addr abr_id; struct nbr *dr; /* designated router */ struct nbr *bdr; /* backup designated router */ struct nbr *self; struct area *area; u_int64_t baudrate; u_int32_t dead_interval; u_int32_t fast_hello_interval; u_int32_t ls_ack_cnt; u_int32_t crypt_seq_num; time_t uptime; unsigned int ifindex; u_int rdomain; int fd; int state; int mtu; int depend_ok; u_int16_t flags; u_int16_t transmit_delay; u_int16_t hello_interval; u_int16_t rxmt_interval; u_int16_t metric; enum iface_type type; enum auth_type auth_type; u_int8_t if_type; u_int8_t auth_keyid; u_int8_t linkstate; u_int8_t priority; u_int8_t passive; }; struct ifaddrchange { struct in_addr addr; struct in_addr mask; struct in_addr dst; unsigned int ifindex; }; /* ospf_conf */ enum ospfd_process { PROC_MAIN, PROC_OSPF_ENGINE, PROC_RDE_ENGINE }; extern enum ospfd_process ospfd_process; struct ospfd_conf { struct event ev; struct in_addr rtr_id; LIST_HEAD(, area) area_list; LIST_HEAD(, vertex) cand_list; struct redist_list redist_list; u_int32_t opts; #define OSPFD_OPT_VERBOSE 0x00000001 #define OSPFD_OPT_VERBOSE2 0x00000002 #define OSPFD_OPT_NOACTION 0x00000004 #define OSPFD_OPT_STUB_ROUTER 0x00000008 #define OSPFD_OPT_FORCE_DEMOTE 0x00000010 u_int32_t spf_delay; u_int32_t spf_hold_time; time_t uptime; int spf_state; int ospf_socket; int flags; int redist_label_or_prefix; u_int8_t rfc1583compat; u_int8_t border; u_int8_t redistribute; u_int8_t fib_priority; u_int rdomain; char *csock; }; /* kroute */ struct kroute { struct in_addr prefix; struct in_addr nexthop; u_int32_t ext_tag; u_int32_t metric; u_int16_t flags; u_int16_t rtlabel; u_short ifindex; u_int8_t prefixlen; u_int8_t priority; }; struct kif_addr { TAILQ_ENTRY(kif_addr) entry; struct in_addr addr; struct in_addr mask; struct in_addr dstbrd; }; struct kif { char ifname[IF_NAMESIZE]; u_int64_t baudrate; int flags; int mtu; unsigned int ifindex; u_int rdomain; u_int8_t if_type; u_int8_t link_state; u_int8_t nh_reachable; /* for nexthop verification */ }; /* name2id */ struct n2id_label { TAILQ_ENTRY(n2id_label) entry; char *name; u_int16_t id; u_int32_t ext_tag; int ref; }; TAILQ_HEAD(n2id_labels, n2id_label); extern struct n2id_labels rt_labels; /* control data structures */ struct ctl_iface { char name[IF_NAMESIZE]; struct in_addr addr; struct in_addr mask; struct in_addr area; struct in_addr rtr_id; struct in_addr dr_id; struct in_addr dr_addr; struct in_addr bdr_id; struct in_addr bdr_addr; struct timeval hello_timer; time_t uptime; u_int64_t baudrate; u_int32_t dead_interval; u_int32_t fast_hello_interval; unsigned int ifindex; int state; int mtu; int nbr_cnt; int adj_cnt; u_int16_t transmit_delay; u_int16_t hello_interval; u_int16_t flags; u_int16_t metric; u_int16_t rxmt_interval; enum iface_type type; u_int8_t linkstate; u_int8_t if_type; u_int8_t priority; u_int8_t passive; enum auth_type auth_type; u_int8_t auth_keyid; char dependon[IF_NAMESIZE]; int depend_ok; }; struct ctl_nbr { char name[IF_NAMESIZE]; struct in_addr id; struct in_addr addr; struct in_addr dr; struct in_addr bdr; struct in_addr area; time_t dead_timer; time_t uptime; u_int32_t db_sum_lst_cnt; u_int32_t ls_req_lst_cnt; u_int32_t ls_retrans_lst_cnt; u_int32_t state_chng_cnt; int nbr_state; int iface_state; u_int8_t priority; u_int8_t options; }; struct ctl_rt { struct in_addr prefix; struct in_addr nexthop; struct in_addr area; struct in_addr adv_rtr; time_t uptime; u_int32_t cost; u_int32_t cost2; enum path_type p_type; enum dst_type d_type; u_int8_t flags; u_int8_t prefixlen; u_int8_t connected; }; struct ctl_sum { struct in_addr rtr_id; u_int32_t spf_delay; u_int32_t spf_hold_time; u_int32_t num_ext_lsa; u_int32_t num_area; u_int32_t ext_lsa_cksum; time_t uptime; u_int8_t rfc1583compat; }; struct ctl_sum_area { struct in_addr area; u_int32_t num_iface; u_int32_t num_adj_nbr; u_int32_t num_spf_calc; u_int32_t num_lsa; u_int32_t lsa_cksum; }; struct demote_msg { char demote_group[IF_NAMESIZE]; int level; }; /* area.c */ struct area *area_new(void); int area_del(struct area *); struct area *area_find(struct ospfd_conf *, struct in_addr); void area_track(struct area *); int area_border_router(struct ospfd_conf *); u_int8_t area_ospf_options(struct area *); /* carp.c */ int carp_demote_init(char *, int); void carp_demote_shutdown(void); int carp_demote_get(char *); int carp_demote_set(char *, int); /* parse.y */ struct ospfd_conf *parse_config(char *, int); u_int32_t get_rtr_id(void); int cmdline_symset(char *); void conf_clear_redist_list(struct redist_list *); /* in_cksum.c */ u_int16_t in_cksum(void *, size_t); /* iso_cksum.c */ u_int16_t iso_cksum(void *, u_int16_t, u_int16_t); /* kroute.c */ int kif_init(void); void kif_clear(void); int kr_init(int, u_int, int, u_int8_t); int kr_change(struct kroute *, int); int kr_delete(struct kroute *); void kr_shutdown(void); void kr_fib_couple(void); void kr_fib_decouple(void); void kr_fib_reload(void); void kr_fib_update_prio(u_int8_t); void kr_dispatch_msg(int, short, void *); void kr_show_route(struct imsg *); void kr_ifinfo(char *, pid_t); struct kif *kif_findname(char *, struct in_addr, struct kif_addr **); void kr_reload(int); u_int8_t mask2prefixlen(in_addr_t); in_addr_t prefixlen2mask(u_int8_t); /* logmsg.h */ const char *nbr_state_name(int); const char *if_state_name(int); const char *if_type_name(enum iface_type); const char *if_auth_name(enum auth_type); const char *dst_type_name(enum dst_type); const char *path_type_name(enum path_type); /* name2id.c */ u_int16_t rtlabel_name2id(const char *); const char *rtlabel_id2name(u_int16_t); void rtlabel_unref(u_int16_t); u_int32_t rtlabel_id2tag(u_int16_t); u_int16_t rtlabel_tag2id(u_int32_t); void rtlabel_tag(u_int16_t, u_int32_t); /* ospfd.c */ void main_imsg_compose_ospfe(int, pid_t, void *, u_int16_t); void main_imsg_compose_ospfe_fd(int, pid_t, int); void main_imsg_compose_rde(int, pid_t, void *, u_int16_t); int ospf_redistribute(struct kroute *, u_int32_t *); void merge_config(struct ospfd_conf *, struct ospfd_conf *); void imsg_event_add(struct imsgev *); int imsg_compose_event(struct imsgev *, u_int16_t, u_int32_t, pid_t, int, void *, u_int16_t); int ifstate_is_up(struct kif *kif); /* printconf.c */ void print_config(struct ospfd_conf *); #endif /* _OSPFD_H_ */