/* $OpenBSD: ripd.h,v 1.15 2009/06/06 18:31:42 pyr 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 _RIPD_H_ #define _RIPD_H_ #include #include #include #include #include #include #include #include #define CONF_FILE "/etc/ripd.conf" #define RIPD_SOCKET "/var/run/ripd.sock" #define RIPD_USER "_ripd" #define NBR_HASHSIZE 128 #define NBR_IDSELF 1 #define NBR_CNTSTART (NBR_IDSELF + 1) #define ROUTE_TIMEOUT 180 #define ROUTE_GARBAGE 120 #define NBR_TIMEOUT 180 #define RT_BUF_SIZE 16384 #define MAX_RTSOCK_BUF 128 * 1024 #define RIPD_FLAG_NO_FIB_UPDATE 0x0001 #define F_RIPD_INSERTED 0x0001 #define F_KERNEL 0x0002 #define F_BGPD_INSERTED 0x0004 #define F_CONNECTED 0x0008 #define F_DOWN 0x0010 #define F_STATIC 0x0020 #define F_DYNAMIC 0x0040 #define F_OSPFD_INSERTED 0x0080 #define F_REDISTRIBUTED 0x0100 #define F_REJECT 0x0200 #define F_BLACKHOLE 0x0400 #define REDISTRIBUTE_ON 0x01 #define OPT_SPLIT_HORIZON 0x01 #define OPT_SPLIT_POISONED 0x02 #define OPT_TRIGGERED_UPDATES 0x04 enum imsg_type { IMSG_NONE, IMSG_CTL_END, IMSG_CTL_RELOAD, IMSG_CTL_IFINFO, IMSG_IFINFO, IMSG_CTL_FIB_COUPLE, IMSG_CTL_FIB_DECOUPLE, IMSG_CTL_KROUTE, IMSG_CTL_KROUTE_ADDR, IMSG_CTL_SHOW_INTERFACE, IMSG_CTL_SHOW_IFACE, IMSG_CTL_SHOW_NBR, IMSG_CTL_SHOW_RIB, IMSG_KROUTE_CHANGE, IMSG_KROUTE_DELETE, IMSG_KROUTE_GET, IMSG_NETWORK_ADD, IMSG_NETWORK_DEL, IMSG_ROUTE_FEED, IMSG_RESPONSE_ADD, IMSG_SEND_RESPONSE, IMSG_FULL_RESPONSE, IMSG_ROUTE_REQUEST, IMSG_ROUTE_REQUEST_END, IMSG_FULL_REQUEST, IMSG_REQUEST_ADD, IMSG_SEND_REQUEST, IMSG_SEND_TRIGGERED_UPDATE, IMSG_DEMOTE }; struct imsgev { struct imsgbuf ibuf; void (*handler)(int, short, void *); struct event ev; void *data; short events; }; /* interface states */ #define IF_STA_DOWN 0x01 #define IF_STA_ACTIVE (~IF_STA_DOWN) #define IF_STA_ANY 0x7f /* interface events */ enum iface_event { IF_EVT_NOTHING, IF_EVT_UP, IF_EVT_DOWN }; /* interface actions */ enum iface_action { IF_ACT_NOTHING, IF_ACT_STRT, IF_ACT_RST }; /* interface types */ enum iface_type { IF_TYPE_POINTOPOINT, IF_TYPE_BROADCAST, IF_TYPE_NBMA, IF_TYPE_POINTOMULTIPOINT }; /* neighbor states */ #define NBR_STA_DOWN 0x01 #define NBR_STA_REQ_RCVD 0x02 #define NBR_STA_ACTIVE (~NBR_STA_DOWN) #define NBR_STA_ANY 0xff struct auth_md { TAILQ_ENTRY(auth_md) entry; u_int32_t seq_modulator; u_int8_t key[MD5_DIGEST_LENGTH]; u_int8_t keyid; }; #define MAX_SIMPLE_AUTH_LEN 16 /* auth types */ enum auth_type { AUTH_NONE = 1, AUTH_SIMPLE, AUTH_CRYPT }; TAILQ_HEAD(auth_md_head, auth_md); TAILQ_HEAD(packet_head, packet_entry); struct iface { LIST_ENTRY(iface) entry; LIST_HEAD(, nbr) nbr_list; LIST_HEAD(, nbr_failed) failed_nbr_list; char name[IF_NAMESIZE]; char demote_group[IFNAMSIZ]; u_int8_t auth_key[MAX_SIMPLE_AUTH_LEN]; struct in_addr addr; struct in_addr dst; struct in_addr mask; struct packet_head rq_list; struct packet_head rp_list; struct auth_md_head auth_md_list; u_int64_t baudrate; time_t uptime; u_int mtu; int fd; /* XXX */ int state; u_short ifindex; u_int16_t cost; u_int16_t flags; enum iface_type type; enum auth_type auth_type; u_int8_t linktype; u_int8_t media_type; u_int8_t passive; u_int8_t linkstate; u_int8_t auth_keyid; }; struct rip_route { struct in_addr address; struct in_addr mask; struct in_addr nexthop; int refcount; u_short ifindex; u_int8_t metric; }; struct packet_entry { TAILQ_ENTRY(packet_entry) entry; struct rip_route *rr; }; enum { PROC_MAIN, PROC_RIP_ENGINE, PROC_RDE_ENGINE } ripd_process; #define REDIST_CONNECTED 0x01 #define REDIST_STATIC 0x02 #define REDIST_LABEL 0x04 #define REDIST_ADDR 0x08 #define REDIST_DEFAULT 0x10 #define REDIST_NO 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; }; struct ripd_conf { struct event ev; struct event report_timer; LIST_HEAD(, iface) iface_list; SIMPLEQ_HEAD(, redistribute) redist_list; u_int32_t opts; #define RIPD_OPT_VERBOSE 0x00000001 #define RIPD_OPT_VERBOSE2 0x00000002 #define RIPD_OPT_NOACTION 0x00000004 #define RIPD_OPT_FORCE_DEMOTE 0x00000008 int flags; int options; int rip_socket; int redistribute; }; /* kroute */ struct kroute { struct in_addr prefix; struct in_addr netmask; struct in_addr nexthop; u_int16_t flags; u_int16_t rtlabel; u_short ifindex; u_int8_t metric; }; struct kif { char ifname[IF_NAMESIZE]; u_int64_t baudrate; int flags; int mtu; u_short ifindex; u_int8_t media_type; u_int8_t link_state; u_int8_t nh_reachable; /* for nexthop verification */ }; /* control data structures */ struct ctl_iface { char name[IF_NAMESIZE]; struct in_addr addr; struct in_addr mask; time_t uptime; time_t report_timer; u_int64_t baudrate; unsigned int ifindex; int state; int mtu; u_int16_t flags; u_int16_t metric; enum iface_type type; u_int8_t linkstate; u_int8_t mediatype; u_int8_t passive; }; struct ctl_rt { struct in_addr prefix; struct in_addr netmask; struct in_addr nexthop; time_t uptime; time_t expire; u_int32_t metric; u_int16_t flags; }; struct ctl_nbr { char name[IF_NAMESIZE]; struct in_addr id; struct in_addr addr; time_t dead_timer; time_t uptime; int nbr_state; int iface_state; }; struct demote_msg { char demote_group[IF_NAMESIZE]; int level; }; int kif_init(void); int kr_init(int); int kr_change(struct kroute *); int kr_delete(struct kroute *); void kr_shutdown(void); void kr_fib_couple(void); void kr_fib_decouple(void); void kr_dispatch_msg(int, short, void *); void kr_show_route(struct imsg *); void kr_ifinfo(char *, pid_t); struct kif *kif_findname(char *); in_addr_t prefixlen2mask(u_int8_t); u_int8_t mask2prefixlen(in_addr_t); /* ripd.c */ void main_imsg_compose_ripe(int, pid_t, void *, u_int16_t); void main_imsg_compose_rde(int, pid_t, void *, u_int16_t); int rip_redistribute(struct kroute *); 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); /* parse.y */ struct ripd_conf *parse_config(char *, int); int cmdline_symset(char *); /* carp.c */ int carp_demote_init(char *, int); void carp_demote_shutdown(void); int carp_demote_get(char *); int carp_demote_set(char *, int); /* printconf.c */ void print_config(struct ripd_conf *); /* log.c */ const char *if_state_name(int); const char *if_auth_name(enum auth_type); const char *nbr_state_name(int); /* interface.c */ struct iface *if_find_index(u_short); /* name2id.c */ u_int16_t rtlabel_name2id(const char *); const char *rtlabel_id2name(u_int16_t); void rtlabel_unref(u_int16_t); #endif /* _RIPD_H_ */