/* $OpenBSD: dvmrpd.h,v 1.5 2006/12/03 20:14:37 michele Exp $ */ /* * Copyright (c) 2004, 2005, 2006 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 _DVMRPD_H_ #define _DVMRPD_H_ #include #include #include #include #include #include #include #define CONF_FILE "/etc/dvmrpd.conf" #define DVMRPD_SOCKET "/var/run/dvmrpd.sock" #define DVMRPD_USER "_dvmrpd" #define NBR_HASHSIZE 128 #define NBR_IDSELF 1 #define NBR_CNTSTART (NBR_IDSELF + 1) #define READ_BUF_SIZE 65535 #define RT_BUF_SIZE 16384 #define DVMRPD_FLAG_NO_FIB_UPDATE 0x0001 #define F_DVMRPD_INSERTED 0x0001 #define F_KERNEL 0x0002 #define F_CONNECTED 0x0004 #define F_DOWN 0x0010 #define F_STATIC 0x0020 #define F_LONGER 0x0040 #define MAXVIFS 32 /* XXX */ /* buffer */ struct buf { TAILQ_ENTRY(buf) entry; u_char *buf; size_t size; size_t max; size_t wpos; size_t rpos; int fd; }; struct msgbuf { u_int32_t queued; int fd; TAILQ_HEAD(, buf) bufs; }; #define IMSG_HEADER_SIZE sizeof(struct imsg_hdr) #define MAX_IMSGSIZE 8192 struct buf_read { u_char buf[READ_BUF_SIZE]; u_char *rptr; size_t wpos; }; struct imsgbuf { TAILQ_HEAD(, imsg_fd) fds; struct buf_read r; struct msgbuf w; struct event ev; void (*handler)(int, short, void *); int fd; pid_t pid; short events; }; enum imsg_type { IMSG_NONE, IMSG_CTL_RELOAD, IMSG_CTL_SHOW_IFACE, IMSG_CTL_SHOW_IGMP, IMSG_CTL_SHOW_NBR, IMSG_CTL_SHOW_RIB, IMSG_CTL_SHOW_MFC, IMSG_CTL_MFC_COUPLE, IMSG_CTL_MFC_DECOUPLE, IMSG_CTL_KROUTE, IMSG_CTL_KROUTE_ADDR, IMSG_CTL_IFINFO, IMSG_CTL_SHOW_SUM, IMSG_CTL_END, IMSG_IFINFO, IMSG_ROUTE_REPORT, IMSG_FULL_ROUTE_REPORT, IMSG_FULL_ROUTE_REPORT_END, IMSG_MFC_ADD, IMSG_MFC_DEL }; struct imsg_hdr { enum imsg_type type; u_int16_t len; u_int32_t peerid; pid_t pid; }; struct imsg { struct imsg_hdr hdr; void *data; }; struct imsg_fd { TAILQ_ENTRY(imsg_fd) entry; int fd; }; /* interface states */ #define IF_STA_DOWN 0x01 #define IF_STA_QUERIER 0x02 #define IF_STA_NONQUERIER 0x04 #define IF_STA_ANY 0x07 #define IF_STA_ACTIVE (~IF_STA_DOWN) /* interface events */ enum iface_event { IF_EVT_NOTHING, IF_EVT_UP, IF_EVT_QTMOUT, /* query timer expired */ IF_EVT_QRECVD, /* query received, check for lower IP */ IF_EVT_QPRSNTTMOUT, /* other querier present timeout */ IF_EVT_DOWN }; /* interface actions */ enum iface_action { IF_ACT_NOTHING, IF_ACT_STRT, IF_ACT_QPRSNT, IF_ACT_RST }; /* interface types */ enum iface_type { IF_TYPE_POINTOPOINT, IF_TYPE_BROADCAST }; /* neighbor states */ #define NBR_STA_DOWN 0x01 #define NBR_STA_1_WAY 0x02 #define NBR_STA_2_WAY 0x04 #define NBR_STA_ACTIVE (~NBR_STA_DOWN) #define NBR_STA_ANY 0xff struct group { TAILQ_ENTRY(group) entry; struct event dead_timer; struct event v1_host_timer; struct event retrans_timer; struct in_addr addr; struct iface *iface; time_t uptime; int state; }; struct mfc { struct in_addr origin; struct in_addr group; u_short ifindex; u_int8_t ttls[MAXVIFS]; }; TAILQ_HEAD(rr_head, rr_entry); struct iface { LIST_ENTRY(iface) entry; struct event probe_timer; struct event query_timer; struct event querier_present_timer; time_t uptime; LIST_HEAD(, nbr) nbr_list; TAILQ_HEAD(, group) group_list; struct rr_head rr_list; char name[IF_NAMESIZE]; struct in_addr addr; struct in_addr dst; struct in_addr mask; struct in_addr querier; /* designated querier */ u_int32_t gen_id; u_int32_t group_cnt; u_int32_t baudrate; u_int32_t probe_interval; u_int32_t query_interval; u_int32_t query_resp_interval; u_int32_t recv_query_resp_interval; u_int32_t group_member_interval; u_int32_t querier_present_interval; u_int32_t startup_query_interval; u_int32_t startup_query_cnt; u_int32_t last_member_query_interval; u_int32_t last_member_query_cnt; u_int32_t last_member_query_time; u_int32_t v1_querier_present_tmout; u_int32_t v1_host_present_interval; u_int32_t startup_query_counter; /* actual counter */ u_int32_t dead_interval; unsigned int ifindex; /* ifindex and vif */ int fd; int state; int mtu; int nbr_cnt; int adj_cnt; u_int16_t flags; u_int16_t metric; enum iface_type type; u_int8_t robustness; u_int8_t linkstate; u_int8_t media_type; u_int8_t passive; u_int8_t igmp_version; }; /* dvmrp_conf */ enum { PROC_MAIN, PROC_DVMRP_ENGINE, PROC_RDE_ENGINE } dvmrpd_process; struct dvmrpd_conf { struct event ev; struct event report_timer; u_int32_t gen_id; u_int32_t opts; #define DVMRPD_OPT_VERBOSE 0x00000001 #define DVMRPD_OPT_VERBOSE2 0x00000002 #define DVMRPD_OPT_NOACTION 0x00000004 int maxdepth; LIST_HEAD(, iface) iface_list; int dvmrp_socket; int mroute_socket; int flags; }; /* kroute */ struct kroute { struct in_addr prefix; struct in_addr nexthop; u_int16_t flags; u_short ifindex; u_int8_t prefixlen; }; struct kif { char ifname[IF_NAMESIZE]; u_long 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; struct in_addr querier; time_t probe_timer; time_t query_timer; time_t querier_present_timer; time_t uptime; u_int32_t gen_id; u_int32_t group_cnt; u_int32_t baudrate; u_int32_t probe_interval; u_int32_t query_interval; u_int32_t query_resp_interval; u_int32_t recv_query_resp_interval; u_int32_t group_member_interval; u_int32_t querier_present_interval; u_int32_t startup_query_interval; u_int32_t startup_query_cnt; u_int32_t last_member_query_interval; u_int32_t last_member_query_cnt; u_int32_t last_member_query_time; u_int32_t v1_querier_present_tmout; u_int32_t v1_host_present_interval; u_int32_t dead_interval; unsigned int ifindex; int state; int mtu; int nbr_cnt; int adj_cnt; u_int16_t flags; u_int16_t metric; enum iface_type type; u_int8_t robustness; u_int8_t linkstate; u_int8_t mediatype; u_int8_t passive; u_int8_t igmp_version; }; struct ctl_group { time_t dead_timer; time_t v1_host_timer; time_t retrans_timer; time_t uptime; struct in_addr addr; int state; }; struct ctl_nbr { char name[IF_NAMESIZE]; struct in_addr id; struct in_addr addr; time_t dead_timer; time_t uptime; int state; }; struct ctl_rt { struct in_addr prefix; struct in_addr nexthop; struct in_addr area; struct in_addr adv_rtr; time_t uptime; time_t expire; u_int32_t cost; u_int8_t flags; u_int8_t prefixlen; }; struct ctl_mfc { u_int8_t ttls[MAXVIFS]; /* outgoing vif(s) */ struct in_addr origin; struct in_addr group; time_t uptime; time_t expire; u_short ifindex; /* incoming vif */ }; struct ctl_sum { struct in_addr rtr_id; u_int32_t hold_time; }; /* buffer.c */ struct buf *buf_open(size_t); struct buf *buf_dynamic(size_t, size_t); int buf_add(struct buf *, void *, size_t); void *buf_reserve(struct buf *, size_t); void *buf_seek(struct buf *, size_t, size_t); int buf_close(struct msgbuf *, struct buf *); void buf_free(struct buf *); void msgbuf_init(struct msgbuf *); void msgbuf_clear(struct msgbuf *); int msgbuf_write(struct msgbuf *); /* dvmrpd.c */ void main_imsg_compose_dvmrpe(int, pid_t, void *, u_int16_t); /* parse.y */ struct dvmrpd_conf *parse_config(char *, int); int cmdline_symset(char *); /* imsg.c */ void imsg_init(struct imsgbuf *, int, void (*)(int, short, void *)); ssize_t imsg_read(struct imsgbuf *); ssize_t imsg_get(struct imsgbuf *, struct imsg *); int imsg_compose(struct imsgbuf *, enum imsg_type, u_int32_t, pid_t, void *, u_int16_t); struct buf *imsg_create(struct imsgbuf *, enum imsg_type, u_int32_t, pid_t, u_int16_t); int imsg_add(struct buf *, void *, u_int16_t); int imsg_close(struct imsgbuf *, struct buf *); void imsg_free(struct imsg *); void imsg_event_add(struct imsgbuf *); /* needs to be provided externally */ /* in_cksum.c */ u_int16_t in_cksum(void *, size_t); /* kroute.c */ int kif_init(void); void kif_clear(void); int kr_init(void); void kr_shutdown(void); void kr_dispatch_msg(int, short, void *); void kr_ifinfo(char *); struct kif *kif_findname(char *); u_int8_t prefixlen_classful(in_addr_t); u_int8_t mask2prefixlen(in_addr_t); in_addr_t prefixlen2mask(u_int8_t); /* kmroute.c */ int kmr_init(int); void kmr_shutdown(void); void kmr_recv_msg(int, short, void *); void kmr_mfc_couple(void); void kmr_mfc_decouple(void); void kmroute_clear(void); int mrt_init(int); int mrt_done(int); int mrt_add_vif(int, struct iface *); void mrt_del_vif(int, struct iface *); int mrt_add_mfc(int, struct mfc *); int mrt_del_mfc(int, struct mfc *); /* log.h */ const char *nbr_state_name(int); const char *if_state_name(int); const char *if_type_name(enum iface_type); const char *group_state_name(int); /* printconf.c */ void print_config(struct dvmrpd_conf *); /* interface.c */ struct iface *if_find_index(u_short); #define PREFIX_SIZE(x) (((x) + 7) / 8) #endif /* _DVMRPD_H_ */