OpenBSD-4.6/usr.sbin/ldpd/ldpd.h
/* $OpenBSD: ldpd.h,v 1.4 2009/06/06 18:31:42 pyr Exp $ */
/*
* Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
* Copyright (c) 2004 Esben Norby <norby@openbsd.org>
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
*
* 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 _LDPD_H_
#define _LDPD_H_
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/tree.h>
#include <md5.h>
#include <net/if.h>
#include <netinet/in.h>
#include <event.h>
#include <imsg.h>
#include "ldp.h"
#define CONF_FILE "/etc/ldpd.conf"
#define LDPD_SOCKET "/var/run/ldpd.sock"
#define LDPD_USER "_ldpd"
#define NBR_HASHSIZE 128
#define NBR_IDSELF 1
#define NBR_CNTSTART (NBR_IDSELF + 1)
#define RT_BUF_SIZE 16384
#define MAX_RTSOCK_BUF 128 * 1024
#define LDP_BACKLOG 128
#define LDPD_FLAG_NO_LFIB_UPDATE 0x0001
#define F_LDPD_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_REDISTRIBUTED 0x0100
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_NBR,
IMSG_CTL_SHOW_LIB,
IMSG_CTL_LFIB_COUPLE,
IMSG_CTL_LFIB_DECOUPLE,
IMSG_CTL_KROUTE,
IMSG_CTL_KROUTE_ADDR,
IMSG_CTL_IFINFO,
IMSG_CTL_END,
IMSG_KLABEL_INSERT,
IMSG_KLABEL_CHANGE,
IMSG_KLABEL_DELETE,
IMSG_KROUTE_GET,
IMSG_IFINFO,
IMSG_LABEL_MAPPING,
IMSG_LABEL_MAPPING_FULL,
IMSG_LABEL_REQUEST,
IMSG_REQUEST_ADD,
IMSG_REQUEST_ADD_END,
IMSG_MAPPING_ADD,
IMSG_MAPPING_ADD_END,
IMSG_RELEASE_ADD,
IMSG_RELEASE_ADD_END,
IMSG_ADDRESS_ADD,
IMSG_ADDRESS_DEL,
IMSG_NOTIFICATION_SEND,
IMSG_NEIGHBOR_UP,
IMSG_NEIGHBOR_DOWN,
IMSG_NEIGHBOR_CHANGE,
IMSG_NETWORK_ADD,
IMSG_NETWORK_DEL,
IMSG_RECONF_CONF,
IMSG_RECONF_AREA,
IMSG_RECONF_IFACE,
IMSG_RECONF_END
};
/* interface states */
#define IF_STA_NEW 0x00 /* dummy state for reload */
#define IF_STA_DOWN 0x01
#define IF_STA_LOOPBACK 0x02
#define IF_STA_POINTTOPOINT 0x04
#define IF_STA_DROTHER 0x08
#define IF_STA_MULTI (IF_STA_DROTHER | IF_STA_BACKUP | IF_STA_DR)
#define IF_STA_ANY 0x7f
#define IF_STA_ACTIVE (~IF_STA_DOWN)
/* 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,
IF_TYPE_VIRTUALLINK
};
/* neighbor states */
#define NBR_STA_DOWN 0x0001
#define NBR_STA_PRESENT 0x0002
#define NBR_STA_INITIAL 0x0004
#define NBR_STA_OPENREC 0x0008
#define NBR_STA_OPENSENT 0x0010
#define NBR_STA_OPER 0x0020
#define NBR_STA_ACTIVE (~NBR_STA_DOWN)
#define NBR_STA_SESSION (NBR_STA_PRESENT | NBR_STA_PRESENT | \
NBR_STA_INITIAL | NBR_STA_OPENREC | \
NBR_STA_OPER | NBR_STA_OPENSENT | \
NBR_STA_ACTIVE)
#define NBR_STA_UP (NBR_STA_PRESENT | NBR_STA_SESSION)
/* neighbor events */
enum nbr_event {
NBR_EVT_NOTHING,
NBR_EVT_HELLO_RCVD,
NBR_EVT_SESSION_UP,
NBR_EVT_CLOSE_SESSION,
NBR_EVT_INIT_RCVD,
NBR_EVT_KEEPALIVE_RCVD,
NBR_EVT_PDU_RCVD,
NBR_EVT_INIT_SENT,
NBR_EVT_DOWN
};
/* neighbor actions */
enum nbr_action {
NBR_ACT_NOTHING,
NBR_ACT_STRT_ITIMER,
NBR_ACT_RST_ITIMER,
NBR_ACT_RST_KTIMEOUT,
NBR_ACT_STRT_KTIMER,
NBR_ACT_RST_KTIMER,
NBR_ACT_SESSION_EST,
NBR_ACT_INIT_SEND,
NBR_ACT_KEEPALIVE_SEND,
NBR_ACT_CLOSE_SESSION
};
TAILQ_HEAD(mapping_head, mapping_entry);
struct map {
u_int32_t label;
u_int32_t prefix;
u_int8_t prefixlen;
u_int32_t messageid;
};
struct notify_msg {
u_int32_t messageid;
u_int32_t status;
u_int32_t type;
};
struct iface {
LIST_ENTRY(iface) entry;
struct event hello_timer;
LIST_HEAD(, nbr) nbr_list;
LIST_HEAD(, lde_nbr) lde_nbr_list;
char name[IF_NAMESIZE];
struct in_addr addr;
struct in_addr dst;
struct in_addr mask;
struct nbr *self;
u_int16_t lspace_id;
u_int64_t baudrate;
time_t uptime;
unsigned int ifindex;
int discovery_fd;
int session_fd;
int state;
int mtu;
u_int16_t holdtime;
u_int16_t keepalive;
u_int16_t hello_interval;
u_int16_t flags;
enum iface_type type;
u_int8_t media_type;
u_int8_t linkstate;
u_int8_t priority;
u_int8_t passive;
};
/* ldp_conf */
enum {
PROC_MAIN,
PROC_LDP_ENGINE,
PROC_LDE_ENGINE
} ldpd_process;
#define MODE_DIST_INDEPENDENT 0x01
#define MODE_DIST_ORDERED 0x02
#define MODE_RET_LIBERAL 0x04
#define MODE_RET_CONSERVATIVE 0x08
#define MODE_ADV_ONDEMAND 0x10
#define MODE_ADV_UNSOLICITED 0x20
struct ldpd_conf {
struct event disc_ev, sess_ev;
struct in_addr rtr_id;
LIST_HEAD(, iface) iface_list;
u_int32_t opts;
#define LDPD_OPT_VERBOSE 0x00000001
#define LDPD_OPT_VERBOSE2 0x00000002
#define LDPD_OPT_NOACTION 0x00000004
time_t uptime;
int ldp_discovery_socket;
int ldp_session_socket;
int flags;
u_int8_t mode;
};
/* kroute */
struct kroute {
struct in_addr prefix;
struct in_addr nexthop;
u_int32_t local_label;
u_int32_t remote_label;
u_int16_t flags;
u_int16_t rtlabel;
u_int32_t ext_tag;
u_short ifindex;
u_int8_t prefixlen;
};
struct rroute {
struct kroute kr;
u_int32_t metric;
};
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;
u_short ifindex;
u_int8_t media_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 lspace;
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;
time_t hello_timer;
time_t uptime;
u_int64_t baudrate;
unsigned int ifindex;
int state;
int mtu;
int nbr_cnt;
int adj_cnt;
u_int16_t flags;
u_int16_t holdtime;
u_int16_t hello_interval;
enum iface_type type;
u_int8_t linkstate;
u_int8_t mediatype;
u_int8_t priority;
u_int8_t passive;
};
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 lspace;
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 lspace;
struct in_addr adv_rtr;
time_t uptime;
u_int8_t flags;
u_int8_t prefixlen;
u_int32_t local_label;
u_int32_t remote_label;
};
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_lspace;
time_t uptime;
u_int8_t rfc1583compat;
};
struct ctl_sum_lspace {
struct in_addr lspace;
u_int32_t num_iface;
u_int32_t num_adj_nbr;
u_int32_t num_spf_calc;
u_int32_t num_lsa;
};
/* parse.y */
struct ldpd_conf *parse_config(char *, int);
int cmdline_symset(char *);
/* 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);
int kr_init(int);
int kr_change(struct kroute *, int);
int kr_delete(struct kroute *);
void kr_shutdown(void);
void kr_lfib_couple(void);
void kr_lfib_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 *, struct in_addr, struct kif_addr **);
void kr_reload(void);
int kroute_insert_label(struct kroute *);
u_int8_t mask2prefixlen(in_addr_t);
in_addr_t prefixlen2mask(u_int8_t);
/* log.h */
const char *nbr_state_name(int);
const char *if_state_name(int);
const char *if_type_name(enum iface_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);
/* ldpd.c */
void main_imsg_compose_ldpe(int, pid_t, void *, u_int16_t);
void main_imsg_compose_lde(int, pid_t, void *, u_int16_t);
void merge_config(struct ldpd_conf *, struct ldpd_conf *);
int imsg_compose_event(struct imsgev *, u_int16_t, u_int32_t, pid_t,
int, void *, u_int16_t);
void imsg_event_add(struct imsgev *);
/* printconf.c */
void print_config(struct ldpd_conf *);
#endif /* _LDPD_H_ */