/* $OpenBSD: lde.h,v 1.29 2015/07/21 04:52:29 renato Exp $ */ /* * Copyright (c) 2004, 2005 Esben Norby * * 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 _LDE_H_ #define _LDE_H_ #include #include #include #include #include #include RB_HEAD(fec_tree, fec); enum fec_type { FEC_TYPE_IPV4, FEC_TYPE_PWID }; struct fec { RB_ENTRY(fec) entry; enum fec_type type; union { struct { struct in_addr prefix; u_int8_t prefixlen; } ipv4; struct { u_int16_t type; u_int32_t pwid; struct in_addr nexthop; } pwid; } u; }; RB_PROTOTYPE(fec_tree, fec, entry, fec_compare) extern struct fec_tree ft; /* request entries */ struct lde_req { struct fec fec; u_int32_t msgid; }; /* mapping entries */ struct lde_map { struct fec fec; LIST_ENTRY(lde_map) entry; struct lde_nbr *nexthop; struct map map; }; /* withdraw entries */ struct lde_wdraw { struct fec fec; u_int32_t label; }; /* Addresses belonging to neighbor */ struct lde_nbr_address { TAILQ_ENTRY(lde_nbr_address) entry; struct in_addr addr; }; /* just the info LDE needs */ struct lde_nbr { RB_ENTRY(lde_nbr) entry; struct in_addr id; struct fec_tree recv_req; struct fec_tree sent_req; struct fec_tree recv_map; struct fec_tree sent_map; struct fec_tree sent_wdraw; TAILQ_HEAD(, lde_nbr_address) addr_list; u_int32_t peerid; }; struct fec_nh { LIST_ENTRY(fec_nh) entry; struct in_addr nexthop; u_int32_t remote_label; void *data; /* fec specific data */ }; struct fec_node { struct fec fec; LIST_HEAD(, fec_nh) nexthops; /* fib nexthops */ LIST_HEAD(, lde_map) downstream; /* recv mappings */ LIST_HEAD(, lde_map) upstream; /* sent mappings */ u_int32_t local_label; }; /* lde.c */ pid_t lde(struct ldpd_conf *, int [2], int [2], int [2]); int lde_imsg_compose_parent(int, pid_t, void *, u_int16_t); int lde_imsg_compose_ldpe(int, u_int32_t, pid_t, void *, u_int16_t); u_int32_t lde_assign_label(void); void lde_fec2map(struct fec *, struct map *); void lde_map2fec(struct map *, struct in_addr, struct fec *); void lde_send_change_klabel(struct fec_node *, struct fec_nh *); void lde_send_delete_klabel(struct fec_node *, struct fec_nh *); void lde_send_labelmapping(struct lde_nbr *, struct fec_node *, int); void lde_send_labelwithdraw(struct lde_nbr *, struct fec_node *); void lde_send_labelrelease(struct lde_nbr *, struct fec_node *, u_int32_t); void lde_send_notification(u_int32_t, u_int32_t, u_int32_t, u_int32_t); struct lde_map *lde_map_add(struct lde_nbr *, struct fec_node *, int); void lde_map_del(struct lde_nbr *, struct lde_map *, int); struct lde_req *lde_req_add(struct lde_nbr *, struct fec *, int); void lde_req_del(struct lde_nbr *, struct lde_req *, int); struct lde_wdraw *lde_wdraw_add(struct lde_nbr *, struct fec_node *); void lde_wdraw_del(struct lde_nbr *, struct lde_wdraw *); struct lde_nbr *lde_find_address(struct in_addr); int lde_address_add(struct lde_nbr *, struct in_addr *); struct lde_nbr_address *lde_address_find(struct lde_nbr *, struct in_addr *); int lde_address_del(struct lde_nbr *, struct in_addr *); /* lde_lib.c */ void fec_init(struct fec_tree *); int fec_insert(struct fec_tree *, struct fec *); int fec_remove(struct fec_tree *, struct fec *); struct fec *fec_find(struct fec_tree *, struct fec *); void fec_clear(struct fec_tree *, void (*)(void *)); void rt_dump(pid_t); void fec_snap(struct lde_nbr *); void fec_tree_clear(void); struct fec_nh *fec_nh_find(struct fec_node *, struct in_addr); void lde_kernel_insert(struct fec *, struct in_addr, int, void *); void lde_kernel_remove(struct fec *, struct in_addr); void lde_check_mapping(struct map *, struct lde_nbr *); void lde_check_request(struct map *, struct lde_nbr *); void lde_check_release(struct map *, struct lde_nbr *); void lde_check_release_wcard(struct map *, struct lde_nbr *); void lde_check_withdraw(struct map *, struct lde_nbr *); void lde_check_withdraw_wcard(struct map *, struct lde_nbr *); void lde_label_list_free(struct lde_nbr *); /* l2vpn.c */ struct l2vpn *l2vpn_new(const char *); struct l2vpn *l2vpn_find(struct ldpd_conf *, char *); void l2vpn_del(struct l2vpn *); void l2vpn_init(struct l2vpn *); struct l2vpn_if *l2vpn_if_new(struct l2vpn *, struct kif *); struct l2vpn_if *l2vpn_if_find(struct l2vpn *, unsigned int); void l2vpn_if_del(struct l2vpn_if *l); struct l2vpn_pw *l2vpn_pw_new(struct l2vpn *, struct kif *); struct l2vpn_pw *l2vpn_pw_find(struct l2vpn *, unsigned int); void l2vpn_pw_del(struct l2vpn_pw *); void l2vpn_pw_init(struct l2vpn_pw *); void l2vpn_pw_fec(struct l2vpn_pw *, struct fec *); void l2vpn_pw_reset(struct l2vpn_pw *); int l2vpn_pw_ok(struct l2vpn_pw *, struct fec_nh *); int l2vpn_pw_negotiate(struct lde_nbr *, struct fec_node *, struct map *); void l2vpn_send_pw_status(u_int32_t, u_int32_t, struct fec *); void l2vpn_recv_pw_status(struct lde_nbr *, struct notify_msg *); void l2vpn_sync_pws(struct in_addr); void l2vpn_pw_ctl(pid_t); void l2vpn_binding_ctl(pid_t); #endif /* _LDE_H_ */