[mirror_frr.git] / ldpd / ldpd.h

/*	$OpenBSD$ */

/*
 * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
 * 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 "openbsd-queue.h"
#include "openbsd-tree.h"
#include "imsg.h"
#include "thread.h"

#include "ldp.h"

#define CONF_FILE		"/etc/ldpd.conf"
#define LDPD_USER		"_ldpd"

#define LDPD_OPT_VERBOSE	0x00000001
#define LDPD_OPT_VERBOSE2	0x00000002
#define LDPD_OPT_NOACTION	0x00000004

#define TCP_MD5_KEY_LEN		80
#define L2VPN_NAME_LEN		32

#define	RT_BUF_SIZE		16384
#define	MAX_RTSOCK_BUF		128 * 1024
#define	LDP_BACKLOG		128

#define	F_LDPD_INSERTED		0x0001
#define	F_CONNECTED		0x0002
#define	F_STATIC		0x0004
#define	F_DYNAMIC		0x0008
#define	F_REJECT		0x0010
#define	F_BLACKHOLE		0x0020
#define	F_REDISTRIBUTED		0x0040

struct evbuf {
	struct msgbuf		 wbuf;
	struct thread		*ev;
	int			 (*handler)(struct thread *);
	void			*arg;
};

struct imsgev {
	struct imsgbuf		 ibuf;
	int			(*handler_write)(struct thread *);
	struct thread		*ev_write;
	int			(*handler_read)(struct thread *);
	struct thread		*ev_read;
};

enum imsg_type {
	IMSG_NONE,
	IMSG_CTL_RELOAD,
	IMSG_CTL_SHOW_INTERFACE,
	IMSG_CTL_SHOW_DISCOVERY,
	IMSG_CTL_SHOW_DISC_IFACE,
	IMSG_CTL_SHOW_DISC_TNBR,
	IMSG_CTL_SHOW_DISC_ADJ,
	IMSG_CTL_SHOW_NBR,
	IMSG_CTL_SHOW_NBR_DISC,
	IMSG_CTL_SHOW_NBR_END,
	IMSG_CTL_SHOW_LIB,
	IMSG_CTL_SHOW_L2VPN_PW,
	IMSG_CTL_SHOW_L2VPN_BINDING,
	IMSG_CTL_CLEAR_NBR,
	IMSG_CTL_FIB_COUPLE,
	IMSG_CTL_FIB_DECOUPLE,
	IMSG_CTL_KROUTE,
	IMSG_CTL_KROUTE_ADDR,
	IMSG_CTL_IFINFO,
	IMSG_CTL_END,
	IMSG_CTL_LOG_VERBOSE,
	IMSG_KLABEL_CHANGE,
	IMSG_KLABEL_DELETE,
	IMSG_KPWLABEL_CHANGE,
	IMSG_KPWLABEL_DELETE,
	IMSG_IFSTATUS,
	IMSG_NEWADDR,
	IMSG_DELADDR,
	IMSG_RTRID_UPDATE,
	IMSG_LABEL_MAPPING,
	IMSG_LABEL_MAPPING_FULL,
	IMSG_LABEL_REQUEST,
	IMSG_LABEL_RELEASE,
	IMSG_LABEL_WITHDRAW,
	IMSG_LABEL_ABORT,
	IMSG_REQUEST_ADD,
	IMSG_REQUEST_ADD_END,
	IMSG_MAPPING_ADD,
	IMSG_MAPPING_ADD_END,
	IMSG_RELEASE_ADD,
	IMSG_RELEASE_ADD_END,
	IMSG_WITHDRAW_ADD,
	IMSG_WITHDRAW_ADD_END,
	IMSG_ADDRESS_ADD,
	IMSG_ADDRESS_DEL,
	IMSG_NOTIFICATION,
	IMSG_NOTIFICATION_SEND,
	IMSG_NEIGHBOR_UP,
	IMSG_NEIGHBOR_DOWN,
	IMSG_NETWORK_ADD,
	IMSG_NETWORK_ADD_END,
	IMSG_NETWORK_DEL,
	IMSG_SOCKET_IPC,
	IMSG_SOCKET_NET,
	IMSG_CLOSE_SOCKETS,
	IMSG_REQUEST_SOCKETS,
	IMSG_SETUP_SOCKETS,
	IMSG_RECONF_CONF,
	IMSG_RECONF_IFACE,
	IMSG_RECONF_TNBR,
	IMSG_RECONF_NBRP,
	IMSG_RECONF_L2VPN,
	IMSG_RECONF_L2VPN_IF,
	IMSG_RECONF_L2VPN_PW,
	IMSG_RECONF_L2VPN_IPW,
	IMSG_RECONF_END,
	IMSG_DEBUG_UPDATE,
	IMSG_LOG
};

union ldpd_addr {
	struct in_addr	v4;
	struct in6_addr	v6;
};

#define IN6_IS_SCOPE_EMBED(a)   \
	((IN6_IS_ADDR_LINKLOCAL(a)) ||  \
	 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
	 (IN6_IS_ADDR_MC_INTFACELOCAL(a)))

/* interface states */
#define	IF_STA_DOWN		0x01
#define	IF_STA_ACTIVE		0x02

/* targeted neighbor states */
#define	TNBR_STA_DOWN		0x01
#define	TNBR_STA_ACTIVE		0x02

/* interface types */
enum iface_type {
	IF_TYPE_POINTOPOINT,
	IF_TYPE_BROADCAST
};

/* neighbor states */
#define	NBR_STA_PRESENT		0x0001
#define	NBR_STA_INITIAL		0x0002
#define	NBR_STA_OPENREC		0x0004
#define	NBR_STA_OPENSENT	0x0008
#define	NBR_STA_OPER		0x0010
#define	NBR_STA_SESSION		(NBR_STA_INITIAL | NBR_STA_OPENREC | \
				NBR_STA_OPENSENT | NBR_STA_OPER)

/* neighbor events */
enum nbr_event {
	NBR_EVT_NOTHING,
	NBR_EVT_MATCH_ADJ,
	NBR_EVT_CONNECT_UP,
	NBR_EVT_CLOSE_SESSION,
	NBR_EVT_INIT_RCVD,
	NBR_EVT_KEEPALIVE_RCVD,
	NBR_EVT_PDU_RCVD,
	NBR_EVT_PDU_SENT,
	NBR_EVT_INIT_SENT
};

/* neighbor actions */
enum nbr_action {
	NBR_ACT_NOTHING,
	NBR_ACT_RST_KTIMEOUT,
	NBR_ACT_SESSION_EST,
	NBR_ACT_RST_KTIMER,
	NBR_ACT_CONNECT_SETUP,
	NBR_ACT_PASSIVE_INIT,
	NBR_ACT_KEEPALIVE_SEND,
	NBR_ACT_CLOSE_SESSION
};

TAILQ_HEAD(mapping_head, mapping_entry);

struct map {
	uint8_t		type;
	uint32_t	msg_id;
	union {
		struct {
			uint16_t	af;
			union ldpd_addr	prefix;
			uint8_t		prefixlen;
		} prefix;
		struct {
			uint16_t	type;
			uint32_t	pwid;
			uint32_t	group_id;
			uint16_t	ifmtu;
		} pwid;
	} fec;
	struct {
		uint32_t	status_code;
		uint32_t	msg_id;
		uint16_t	msg_type;
	} st;
	uint32_t	label;
	uint32_t	requestid;
	uint32_t	pw_status;
	uint8_t		flags;
};
#define F_MAP_REQ_ID	0x01	/* optional request message id present */
#define F_MAP_STATUS	0x02	/* status */
#define F_MAP_PW_CWORD	0x04	/* pseudowire control word */
#define F_MAP_PW_ID	0x08	/* pseudowire connection id */
#define F_MAP_PW_IFMTU	0x10	/* pseudowire interface parameter */
#define F_MAP_PW_STATUS	0x20	/* pseudowire status */

struct notify_msg {
	uint32_t	status_code;
	uint32_t	msg_id;		/* network byte order */
	uint16_t	msg_type;	/* network byte order */
	uint32_t	pw_status;
	struct map	fec;
	uint8_t		flags;
};
#define F_NOTIF_PW_STATUS	0x01	/* pseudowire status tlv present */
#define F_NOTIF_FEC		0x02	/* fec tlv present */

struct if_addr {
	LIST_ENTRY(if_addr)	 entry;
	int			 af;
	union ldpd_addr		 addr;
	uint8_t			 prefixlen;
	union ldpd_addr		 dstbrd;
};
LIST_HEAD(if_addr_head, if_addr);

struct iface_af {
	struct iface		*iface;
	int			 af;
	int			 enabled;
	int			 state;
	LIST_HEAD(, adj)	 adj_list;
	time_t			 uptime;
	struct thread		*hello_timer;
	uint16_t		 hello_holdtime;
	uint16_t		 hello_interval;
};

struct iface {
	LIST_ENTRY(iface)	 entry;
	char			 name[IF_NAMESIZE];
	unsigned int		 ifindex;
	struct if_addr_head	 addr_list;
	struct in6_addr		 linklocal;
	enum iface_type		 type;
	uint16_t		 flags;
	struct iface_af		 ipv4;
	struct iface_af		 ipv6;
};

/* source of targeted hellos */
struct tnbr {
	LIST_ENTRY(tnbr)	 entry;
	struct thread		*hello_timer;
	struct adj		*adj;
	int			 af;
	union ldpd_addr		 addr;
	int			 state;
	uint16_t		 pw_count;
	uint8_t			 flags;
};
#define F_TNBR_CONFIGURED	 0x01
#define F_TNBR_DYNAMIC		 0x02

enum auth_method {
	AUTH_NONE,
	AUTH_MD5SIG
};

/* neighbor specific parameters */
struct nbr_params {
	LIST_ENTRY(nbr_params)	 entry;
	struct in_addr		 lsr_id;
	uint16_t		 keepalive;
	int			 gtsm_enabled;
	uint8_t			 gtsm_hops;
	struct {
		enum auth_method	 method;
		char			 md5key[TCP_MD5_KEY_LEN];
		uint8_t			 md5key_len;
	} auth;
	uint8_t			 flags;
};
#define F_NBRP_KEEPALIVE	 0x01
#define F_NBRP_GTSM		 0x02
#define F_NBRP_GTSM_HOPS	 0x04

struct l2vpn_if {
	LIST_ENTRY(l2vpn_if)	 entry;
	struct l2vpn		*l2vpn;
	char			 ifname[IF_NAMESIZE];
	unsigned int		 ifindex;
	uint16_t		 flags;
};

struct l2vpn_pw {
	LIST_ENTRY(l2vpn_pw)	 entry;
	struct l2vpn		*l2vpn;
	struct in_addr		 lsr_id;
	int			 af;
	union ldpd_addr		 addr;
	uint32_t		 pwid;
	char			 ifname[IF_NAMESIZE];
	unsigned int		 ifindex;
	uint32_t		 remote_group;
	uint16_t		 remote_mtu;
	uint32_t		 remote_status;
	uint8_t			 flags;
};
#define F_PW_STATUSTLV_CONF	0x01	/* status tlv configured */
#define F_PW_STATUSTLV		0x02	/* status tlv negotiated */
#define F_PW_CWORD_CONF		0x04	/* control word configured */
#define F_PW_CWORD		0x08	/* control word negotiated */
#define F_PW_STATUS_UP		0x10	/* pseudowire is operational */
#define F_PW_STATIC_NBR_ADDR	0x20	/* static neighbor address configured */

struct l2vpn {
	LIST_ENTRY(l2vpn)	 entry;
	char			 name[L2VPN_NAME_LEN];
	int			 type;
	int			 pw_type;
	int			 mtu;
	char			 br_ifname[IF_NAMESIZE];
	unsigned int		 br_ifindex;
	LIST_HEAD(, l2vpn_if)	 if_list;
	LIST_HEAD(, l2vpn_pw)	 pw_list;
	LIST_HEAD(, l2vpn_pw)	 pw_inactive_list;
};
#define L2VPN_TYPE_VPWS		1
#define L2VPN_TYPE_VPLS		2

/* ldp_conf */
enum ldpd_process {
	PROC_MAIN,
	PROC_LDP_ENGINE,
	PROC_LDE_ENGINE
} ldpd_process;

enum socket_type {
	LDP_SOCKET_DISC,
	LDP_SOCKET_EDISC,
	LDP_SOCKET_SESSION
};

enum hello_type {
	HELLO_LINK,
	HELLO_TARGETED
};

struct ldpd_af_conf {
	uint16_t		 keepalive;
	uint16_t		 lhello_holdtime;
	uint16_t		 lhello_interval;
	uint16_t		 thello_holdtime;
	uint16_t		 thello_interval;
	union ldpd_addr		 trans_addr;
	int			 flags;
};
#define	F_LDPD_AF_ENABLED	0x0001
#define	F_LDPD_AF_THELLO_ACCEPT	0x0002
#define	F_LDPD_AF_EXPNULL	0x0004
#define	F_LDPD_AF_NO_GTSM	0x0008

struct ldpd_conf {
	struct in_addr		 rtr_id;
	struct ldpd_af_conf	 ipv4;
	struct ldpd_af_conf	 ipv6;
	LIST_HEAD(, iface)	 iface_list;
	LIST_HEAD(, tnbr)	 tnbr_list;
	LIST_HEAD(, nbr_params)	 nbrp_list;
	LIST_HEAD(, l2vpn)	 l2vpn_list;
	uint16_t		 lhello_holdtime;
	uint16_t		 lhello_interval;
	uint16_t		 thello_holdtime;
	uint16_t		 thello_interval;
	uint16_t		 trans_pref;
	int			 flags;
};
#define	F_LDPD_NO_FIB_UPDATE	0x0001
#define	F_LDPD_DS_CISCO_INTEROP	0x0002
#define	F_LDPD_ENABLED		0x0004

struct ldpd_af_global {
	struct thread		*disc_ev;
	struct thread		*edisc_ev;
	int			 ldp_disc_socket;
	int			 ldp_edisc_socket;
	int			 ldp_session_socket;
};

struct ldpd_global {
	int			 cmd_opts;
	time_t			 uptime;
	struct in_addr		 rtr_id;
	struct ldpd_af_global	 ipv4;
	struct ldpd_af_global	 ipv6;
	uint32_t		 conf_seqnum;
	int			 pfkeysock;
	struct if_addr_head	 addr_list;
	LIST_HEAD(, adj)	 adj_list;
	struct in_addr		 mcast_addr_v4;
	struct in6_addr		 mcast_addr_v6;
	TAILQ_HEAD(, pending_conn) pending_conns;
};

/* kroute */
struct kroute {
	int			 af;
	union ldpd_addr		 prefix;
	uint8_t			 prefixlen;
	union ldpd_addr		 nexthop;
	uint32_t		 local_label;
	uint32_t		 remote_label;
	unsigned short		 ifindex;
	uint8_t			 priority;
	uint16_t		 flags;
};

struct kpw {
	unsigned short		 ifindex;
	int			 pw_type;
	int			 af;
	union ldpd_addr		 nexthop;
	uint32_t		 local_label;
	uint32_t		 remote_label;
	uint8_t			 flags;
};

struct kaddr {
	unsigned short		 ifindex;
	int			 af;
	union ldpd_addr		 addr;
	uint8_t			 prefixlen;
	union ldpd_addr	 	 dstbrd;
};

struct kif {
	char			 ifname[IF_NAMESIZE];
	unsigned short		 ifindex;
	int			 flags;
	int			 mtu;
};

/* control data structures */
struct ctl_iface {
	int			 af;
	char			 name[IF_NAMESIZE];
	unsigned int		 ifindex;
	int			 state;
	uint16_t		 flags;
	enum iface_type		 type;
	uint16_t		 hello_holdtime;
	uint16_t		 hello_interval;
	time_t			 uptime;
	uint16_t		 adj_cnt;
};

struct ctl_disc_if {
	char			 name[IF_NAMESIZE];
	int			 active_v4;
	int			 active_v6;
	int			 no_adj;
};

struct ctl_disc_tnbr {
	int			 af;
	union ldpd_addr		 addr;
	int			 no_adj;
};

struct ctl_adj {
	int			 af;
	struct in_addr		 id;
	enum hello_type		 type;
	char			 ifname[IF_NAMESIZE];
	union ldpd_addr		 src_addr;
	uint16_t		 holdtime;
	union ldpd_addr		 trans_addr;
};

struct ctl_nbr {
	int			 af;
	struct in_addr		 id;
	union ldpd_addr		 laddr;
	in_port_t		 lport;
	union ldpd_addr		 raddr;
	in_port_t		 rport;
	uint16_t		 holdtime;
	time_t			 uptime;
	int			 nbr_state;
};

struct ctl_rt {
	int			 af;
	union ldpd_addr		 prefix;
	uint8_t			 prefixlen;
	struct in_addr		 nexthop;	/* lsr-id */
	uint32_t		 local_label;
	uint32_t		 remote_label;
	uint8_t			 flags;
	uint8_t			 in_use;
	int			 first;
};

struct ctl_pw {
	uint16_t		 type;
	char			 l2vpn_name[L2VPN_NAME_LEN];
	char			 ifname[IF_NAMESIZE];
	uint32_t		 pwid;
	struct in_addr		 lsr_id;
	uint32_t		 local_label;
	uint32_t		 local_gid;
	uint16_t		 local_ifmtu;
	uint8_t			 local_cword;
	uint32_t		 remote_label;
	uint32_t		 remote_gid;
	uint16_t		 remote_ifmtu;
	uint8_t			 remote_cword;
	uint32_t		 status;
};

extern struct ldpd_conf		*ldpd_conf;
extern struct ldpd_global	 global;

/* parse.y */
struct ldpd_conf	*parse_config(char *);
int			 cmdline_symset(char *);

/* kroute.c */
void		 kif_redistribute(const char *);
int		 kr_change(struct kroute *);
int		 kr_delete(struct kroute *);
int		 kmpw_set(struct kpw *);
int		 kmpw_unset(struct kpw *);

/* util.c */
uint8_t		 mask2prefixlen(in_addr_t);
uint8_t		 mask2prefixlen6(struct sockaddr_in6 *);
in_addr_t	 prefixlen2mask(uint8_t);
struct in6_addr	*prefixlen2mask6(uint8_t);
void		 ldp_applymask(int, union ldpd_addr *,
		    const union ldpd_addr *, int);
int		 ldp_addrcmp(int, const union ldpd_addr *,
		    const union ldpd_addr *);
int		 ldp_addrisset(int, const union ldpd_addr *);
int		 ldp_prefixcmp(int, const union ldpd_addr *,
		    const union ldpd_addr *, uint8_t);
int		 bad_addr_v4(struct in_addr);
int		 bad_addr_v6(struct in6_addr *);
int		 bad_addr(int, union ldpd_addr *);
void		 embedscope(struct sockaddr_in6 *);
void		 recoverscope(struct sockaddr_in6 *);
void		 addscope(struct sockaddr_in6 *, uint32_t);
void		 clearscope(struct in6_addr *);
struct sockaddr	*addr2sa(int af, union ldpd_addr *, uint16_t);
void		 sa2addr(struct sockaddr *, int *, union ldpd_addr *,
		    in_port_t *);
socklen_t	 sockaddr_len(struct sockaddr *);

/* ldpd.c */
int			 ldp_write_handler(struct thread *);
void			 main_imsg_compose_ldpe(int, pid_t, void *, uint16_t);
void			 main_imsg_compose_lde(int, pid_t, void *, uint16_t);
int			 main_imsg_compose_both(enum imsg_type, void *,
			    uint16_t);
void			 imsg_event_add(struct imsgev *);
int			 imsg_compose_event(struct imsgev *, uint16_t, uint32_t,
			    pid_t, int, void *, uint16_t);
void			 evbuf_enqueue(struct evbuf *, struct ibuf *);
void			 evbuf_event_add(struct evbuf *);
void			 evbuf_init(struct evbuf *, int,
			    int (*)(struct thread *), void *);
void			 evbuf_clear(struct evbuf *);
struct ldpd_af_conf	*ldp_af_conf_get(struct ldpd_conf *, int);
struct ldpd_af_global	*ldp_af_global_get(struct ldpd_global *, int);
int			 ldp_is_dual_stack(struct ldpd_conf *);
in_addr_t		 ldp_rtr_id_get(struct ldpd_conf *);
int			 ldp_reload(struct ldpd_conf *);
int			 ldp_reload_ref(struct ldpd_conf *, void **);
struct ldpd_conf	*ldp_dup_config_ref(struct ldpd_conf *, void **ref);
struct ldpd_conf	*ldp_dup_config(struct ldpd_conf *);
void			 ldp_clear_config(struct ldpd_conf *);
void			 merge_config(struct ldpd_conf *, struct ldpd_conf *);
struct ldpd_conf	*config_new_empty(void);
void			 config_clear(struct ldpd_conf *);

/* ldp_vty_conf.c */
/* NOTE: the parameters' names should be preserved because of codegen */
struct iface		*iface_new_api(struct ldpd_conf *cfg,
			    const char *name);
void			 iface_del_api(struct iface *iface);
struct tnbr		*tnbr_new_api(struct ldpd_conf *cfg, int af,
			    union ldpd_addr *addr);
void			 tnbr_del_api(struct tnbr *tnbr);
struct nbr_params	*nbrp_new_api(struct ldpd_conf *cfg,
			    struct in_addr lsr_id);
void			 nbrp_del_api(struct nbr_params *nbrp);
struct l2vpn		*l2vpn_new_api(struct ldpd_conf *cfg, const char *name);
void			 l2vpn_del_api(struct l2vpn *l2vpn);
struct l2vpn_if		*l2vpn_if_new_api(struct ldpd_conf *conf,
			    struct l2vpn *l2vpn, const char *ifname);
void			 l2vpn_if_del_api(struct l2vpn_if *lif);
struct l2vpn_pw		*l2vpn_pw_new_api(struct ldpd_conf *conf,
			    struct l2vpn *l2vpn, const char *ifname);
void			 l2vpn_pw_del_api(struct l2vpn_pw *pw);

/* socket.c */
int		 ldp_create_socket(int, enum socket_type);
void		 sock_set_nonblock(int);
void		 sock_set_cloexec(int);
void		 sock_set_recvbuf(int);
int		 sock_set_reuse(int, int);
int		 sock_set_bindany(int, int);
int		 sock_set_md5sig(int, int, union ldpd_addr *, const char *);
int		 sock_set_ipv4_tos(int, int);
int		 sock_set_ipv4_pktinfo(int, int);
int		 sock_set_ipv4_recvdstaddr(int, int);
int		 sock_set_ipv4_recvif(int, int);
int		 sock_set_ipv4_minttl(int, int);
int		 sock_set_ipv4_ucast_ttl(int fd, int);
int		 sock_set_ipv4_mcast_ttl(int, uint8_t);
int		 sock_set_ipv4_mcast(struct iface *);
int		 sock_set_ipv4_mcast_loop(int);
int		 sock_set_ipv6_dscp(int, int);
int		 sock_set_ipv6_pktinfo(int, int);
int		 sock_set_ipv6_minhopcount(int, int);
int		 sock_set_ipv6_ucast_hops(int, int);
int		 sock_set_ipv6_mcast_hops(int, int);
int		 sock_set_ipv6_mcast(struct iface *);
int		 sock_set_ipv6_mcast_loop(int);

/* quagga */
extern struct thread_master	*master;

/* ldp_zebra.c */
void		ldp_zebra_init(struct thread_master *);

/* compatibility */
#ifndef __OpenBSD__
#define __IPV6_ADDR_MC_SCOPE(a)		((a)->s6_addr[1] & 0x0f)
#define __IPV6_ADDR_SCOPE_INTFACELOCAL	0x01
#define	IN6_IS_ADDR_MC_INTFACELOCAL(a)	\
	(IN6_IS_ADDR_MULTICAST(a) &&	\
	(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_INTFACELOCAL))
#endif

#endif	/* _LDPD_H_ */
Commit	Line	Data
8429abe0 RW	1	/* $OpenBSD$ */
	2
	3	/*
	4	* Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
	5	* Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
	6	* Copyright (c) 2004 Esben Norby <norby@openbsd.org>
	7	* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
	8	*
	9	* Permission to use, copy, modify, and distribute this software for any
	10	* purpose with or without fee is hereby granted, provided that the above
	11	* copyright notice and this permission notice appear in all copies.
	12	*
	13	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	14	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	15	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	16	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	17	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	18	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	19	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	20	*/
	21
	22	#ifndef _LDPD_H_
	23	#define _LDPD_H_
	24
eac6e3f0 RW	25	#include "openbsd-queue.h"
	26	#include "openbsd-tree.h"
	27	#include "imsg.h"
	28	#include "thread.h"
8429abe0 RW	29
	30	#include "ldp.h"
	31
	32	#define CONF_FILE "/etc/ldpd.conf"
8429abe0 RW	33	#define LDPD_USER "_ldpd"
	34
	35	#define LDPD_OPT_VERBOSE 0x00000001
	36	#define LDPD_OPT_VERBOSE2 0x00000002
	37	#define LDPD_OPT_NOACTION 0x00000004
	38
	39	#define TCP_MD5_KEY_LEN 80
	40	#define L2VPN_NAME_LEN 32
	41
	42	#define RT_BUF_SIZE 16384
	43	#define MAX_RTSOCK_BUF 128 * 1024
	44	#define LDP_BACKLOG 128
	45
	46	#define F_LDPD_INSERTED 0x0001
	47	#define F_CONNECTED 0x0002
	48	#define F_STATIC 0x0004
	49	#define F_DYNAMIC 0x0008
	50	#define F_REJECT 0x0010
	51	#define F_BLACKHOLE 0x0020
	52	#define F_REDISTRIBUTED 0x0040
	53
	54	struct evbuf {
eac6e3f0 RW	55	struct msgbuf wbuf;
	56	struct thread *ev;
	57	int (handler)(struct thread );
	58	void *arg;
8429abe0 RW	59	};
	60
	61	struct imsgev {
	62	struct imsgbuf ibuf;
eac6e3f0 RW	63	int (handler_write)(struct thread );
	64	struct thread *ev_write;
	65	int (handler_read)(struct thread );
	66	struct thread *ev_read;
8429abe0 RW	67	};
	68
	69	enum imsg_type {
	70	IMSG_NONE,
	71	IMSG_CTL_RELOAD,
	72	IMSG_CTL_SHOW_INTERFACE,
	73	IMSG_CTL_SHOW_DISCOVERY,
eac6e3f0 RW	74	IMSG_CTL_SHOW_DISC_IFACE,
	75	IMSG_CTL_SHOW_DISC_TNBR,
	76	IMSG_CTL_SHOW_DISC_ADJ,
8429abe0	77	IMSG_CTL_SHOW_NBR,
eac6e3f0 RW	78	IMSG_CTL_SHOW_NBR_DISC,
eac6e3f0 RW	79	IMSG_CTL_SHOW_NBR_END,
8429abe0 RW	80	IMSG_CTL_SHOW_LIB,
	81	IMSG_CTL_SHOW_L2VPN_PW,
	82	IMSG_CTL_SHOW_L2VPN_BINDING,
	83	IMSG_CTL_CLEAR_NBR,
	84	IMSG_CTL_FIB_COUPLE,
	85	IMSG_CTL_FIB_DECOUPLE,
	86	IMSG_CTL_KROUTE,
	87	IMSG_CTL_KROUTE_ADDR,
	88	IMSG_CTL_IFINFO,
	89	IMSG_CTL_END,
	90	IMSG_CTL_LOG_VERBOSE,
	91	IMSG_KLABEL_CHANGE,
	92	IMSG_KLABEL_DELETE,
	93	IMSG_KPWLABEL_CHANGE,
	94	IMSG_KPWLABEL_DELETE,
	95	IMSG_IFSTATUS,
	96	IMSG_NEWADDR,
	97	IMSG_DELADDR,
eac6e3f0	98	IMSG_RTRID_UPDATE,
8429abe0 RW	99	IMSG_LABEL_MAPPING,
	100	IMSG_LABEL_MAPPING_FULL,
	101	IMSG_LABEL_REQUEST,
	102	IMSG_LABEL_RELEASE,
	103	IMSG_LABEL_WITHDRAW,
	104	IMSG_LABEL_ABORT,
	105	IMSG_REQUEST_ADD,
	106	IMSG_REQUEST_ADD_END,
	107	IMSG_MAPPING_ADD,
	108	IMSG_MAPPING_ADD_END,
	109	IMSG_RELEASE_ADD,
	110	IMSG_RELEASE_ADD_END,
	111	IMSG_WITHDRAW_ADD,
	112	IMSG_WITHDRAW_ADD_END,
	113	IMSG_ADDRESS_ADD,
	114	IMSG_ADDRESS_DEL,
	115	IMSG_NOTIFICATION,
	116	IMSG_NOTIFICATION_SEND,
	117	IMSG_NEIGHBOR_UP,
	118	IMSG_NEIGHBOR_DOWN,
	119	IMSG_NETWORK_ADD,
134970a2	120	IMSG_NETWORK_ADD_END,
8429abe0 RW	121	IMSG_NETWORK_DEL,
	122	IMSG_SOCKET_IPC,
	123	IMSG_SOCKET_NET,
	124	IMSG_CLOSE_SOCKETS,
	125	IMSG_REQUEST_SOCKETS,
	126	IMSG_SETUP_SOCKETS,
	127	IMSG_RECONF_CONF,
	128	IMSG_RECONF_IFACE,
	129	IMSG_RECONF_TNBR,
	130	IMSG_RECONF_NBRP,
	131	IMSG_RECONF_L2VPN,
	132	IMSG_RECONF_L2VPN_IF,
	133	IMSG_RECONF_L2VPN_PW,
eac6e3f0 RW	134	IMSG_RECONF_L2VPN_IPW,
	135	IMSG_RECONF_END,
	136	IMSG_DEBUG_UPDATE,
	137	IMSG_LOG
8429abe0 RW	138	};
	139
	140	union ldpd_addr {
	141	struct in_addr v4;
	142	struct in6_addr v6;
	143	};
	144
	145	#define IN6_IS_SCOPE_EMBED(a) \
	146	((IN6_IS_ADDR_LINKLOCAL(a)) \|\| \
	147	(IN6_IS_ADDR_MC_LINKLOCAL(a)) \|\| \
	148	(IN6_IS_ADDR_MC_INTFACELOCAL(a)))
	149
	150	/* interface states */
	151	#define IF_STA_DOWN 0x01
	152	#define IF_STA_ACTIVE 0x02
	153
	154	/* targeted neighbor states */
	155	#define TNBR_STA_DOWN 0x01
	156	#define TNBR_STA_ACTIVE 0x02
	157
	158	/* interface types */
	159	enum iface_type {
	160	IF_TYPE_POINTOPOINT,
	161	IF_TYPE_BROADCAST
	162	};
	163
	164	/* neighbor states */
	165	#define NBR_STA_PRESENT 0x0001
	166	#define NBR_STA_INITIAL 0x0002
	167	#define NBR_STA_OPENREC 0x0004
	168	#define NBR_STA_OPENSENT 0x0008
	169	#define NBR_STA_OPER 0x0010
	170	#define NBR_STA_SESSION (NBR_STA_INITIAL \| NBR_STA_OPENREC \| \
	171	NBR_STA_OPENSENT \| NBR_STA_OPER)
	172
	173	/* neighbor events */
	174	enum nbr_event {
	175	NBR_EVT_NOTHING,
	176	NBR_EVT_MATCH_ADJ,
	177	NBR_EVT_CONNECT_UP,
	178	NBR_EVT_CLOSE_SESSION,
	179	NBR_EVT_INIT_RCVD,
	180	NBR_EVT_KEEPALIVE_RCVD,
	181	NBR_EVT_PDU_RCVD,
	182	NBR_EVT_PDU_SENT,
	183	NBR_EVT_INIT_SENT
	184	};
	185
	186	/* neighbor actions */
	187	enum nbr_action {
	188	NBR_ACT_NOTHING,
	189	NBR_ACT_RST_KTIMEOUT,
	190	NBR_ACT_SESSION_EST,
	191	NBR_ACT_RST_KTIMER,
	192	NBR_ACT_CONNECT_SETUP,
	193	NBR_ACT_PASSIVE_INIT,
	194	NBR_ACT_KEEPALIVE_SEND,
	195	NBR_ACT_CLOSE_SESSION
	196	};
	197
	198	TAILQ_HEAD(mapping_head, mapping_entry);
	199
	200	struct map {
	201	uint8_t type;
202	uint32_t msg_id;
203	union {
204	struct {
205	uint16_t af;
206	union ldpd_addr prefix;
207	uint8_t prefixlen;
208	} prefix;
209	struct {
210	uint16_t type;
211	uint32_t pwid;
212	uint32_t group_id;
213	uint16_t ifmtu;
214	} pwid;
215	} fec;
216	struct {
217	uint32_t status_code;
218	uint32_t msg_id;
219	uint16_t msg_type;
220	} st;
221	uint32_t label;
222	uint32_t requestid;
223	uint32_t pw_status;
224	uint8_t flags;
225	};
226	#define F_MAP_REQ_ID 0x01 /* optional request message id present */
227	#define F_MAP_STATUS 0x02 /* status */
228	#define F_MAP_PW_CWORD 0x04 /* pseudowire control word */
229	#define F_MAP_PW_ID 0x08 /* pseudowire connection id */
230	#define F_MAP_PW_IFMTU 0x10 /* pseudowire interface parameter */
231	#define F_MAP_PW_STATUS 0x20 /* pseudowire status */
232
233	struct notify_msg {
234	uint32_t status_code;
235	uint32_t msg_id; /* network byte order */
236	uint16_t msg_type; /* network byte order */
237	uint32_t pw_status;
238	struct map fec;
239	uint8_t flags;
240	};
241	#define F_NOTIF_PW_STATUS 0x01 /* pseudowire status tlv present */
242	#define F_NOTIF_FEC 0x02 /* fec tlv present */
243
244	struct if_addr {
245	LIST_ENTRY(if_addr) entry;
246	int af;
247	union ldpd_addr addr;
248	uint8_t prefixlen;
249	union ldpd_addr dstbrd;
250	};
251	LIST_HEAD(if_addr_head, if_addr);
252
253	struct iface_af {
254	struct iface *iface;
255	int af;
256	int enabled;
257	int state;
258	LIST_HEAD(, adj) adj_list;
259	time_t uptime;
eac6e3f0	260	struct thread *hello_timer;
8429abe0 RW	261	uint16_t hello_holdtime;
	262	uint16_t hello_interval;
	263	};
	264
	265	struct iface {
	266	LIST_ENTRY(iface) entry;
	267	char name[IF_NAMESIZE];
	268	unsigned int ifindex;
	269	struct if_addr_head addr_list;
	270	struct in6_addr linklocal;
	271	enum iface_type type;
8429abe0	272	uint16_t flags;
8429abe0 RW	273	struct iface_af ipv4;
	274	struct iface_af ipv6;
	275	};
	276
	277	/* source of targeted hellos */
	278	struct tnbr {
	279	LIST_ENTRY(tnbr) entry;
eac6e3f0	280	struct thread *hello_timer;
8429abe0 RW	281	struct adj *adj;
	282	int af;
	283	union ldpd_addr addr;
	284	int state;
8429abe0 RW	285	uint16_t pw_count;
	286	uint8_t flags;
	287	};
	288	#define F_TNBR_CONFIGURED 0x01
	289	#define F_TNBR_DYNAMIC 0x02
	290
	291	enum auth_method {
	292	AUTH_NONE,
	293	AUTH_MD5SIG
	294	};
	295
	296	/* neighbor specific parameters */
	297	struct nbr_params {
	298	LIST_ENTRY(nbr_params) entry;
	299	struct in_addr lsr_id;
	300	uint16_t keepalive;
	301	int gtsm_enabled;
	302	uint8_t gtsm_hops;
	303	struct {
	304	enum auth_method method;
	305	char md5key[TCP_MD5_KEY_LEN];
	306	uint8_t md5key_len;
	307	} auth;
	308	uint8_t flags;
	309	};
	310	#define F_NBRP_KEEPALIVE 0x01
	311	#define F_NBRP_GTSM 0x02
	312	#define F_NBRP_GTSM_HOPS 0x04
	313
	314	struct l2vpn_if {
	315	LIST_ENTRY(l2vpn_if) entry;
	316	struct l2vpn *l2vpn;
	317	char ifname[IF_NAMESIZE];
	318	unsigned int ifindex;
	319	uint16_t flags;
8429abe0 RW	320	};
	321
	322	struct l2vpn_pw {
	323	LIST_ENTRY(l2vpn_pw) entry;
	324	struct l2vpn *l2vpn;
	325	struct in_addr lsr_id;
	326	int af;
	327	union ldpd_addr addr;
	328	uint32_t pwid;
	329	char ifname[IF_NAMESIZE];
	330	unsigned int ifindex;
	331	uint32_t remote_group;
	332	uint16_t remote_mtu;
	333	uint32_t remote_status;
	334	uint8_t flags;
	335	};
	336	#define F_PW_STATUSTLV_CONF 0x01 /* status tlv configured */
	337	#define F_PW_STATUSTLV 0x02 /* status tlv negotiated */
	338	#define F_PW_CWORD_CONF 0x04 /* control word configured */
	339	#define F_PW_CWORD 0x08 /* control word negotiated */
	340	#define F_PW_STATUS_UP 0x10 /* pseudowire is operational */
eac6e3f0	341	#define F_PW_STATIC_NBR_ADDR 0x20 /* static neighbor address configured */
8429abe0 RW	342
	343	struct l2vpn {
	344	LIST_ENTRY(l2vpn) entry;
	345	char name[L2VPN_NAME_LEN];
	346	int type;
	347	int pw_type;
	348	int mtu;
	349	char br_ifname[IF_NAMESIZE];
	350	unsigned int br_ifindex;
	351	LIST_HEAD(, l2vpn_if) if_list;
	352	LIST_HEAD(, l2vpn_pw) pw_list;
eac6e3f0	353	LIST_HEAD(, l2vpn_pw) pw_inactive_list;
8429abe0 RW	354	};
	355	#define L2VPN_TYPE_VPWS 1
	356	#define L2VPN_TYPE_VPLS 2
	357
	358	/* ldp_conf */
	359	enum ldpd_process {
	360	PROC_MAIN,
	361	PROC_LDP_ENGINE,
	362	PROC_LDE_ENGINE
	363	} ldpd_process;
	364
	365	enum socket_type {
	366	LDP_SOCKET_DISC,
	367	LDP_SOCKET_EDISC,
	368	LDP_SOCKET_SESSION
	369	};
	370
	371	enum hello_type {
	372	HELLO_LINK,
	373	HELLO_TARGETED
	374	};
	375
	376	struct ldpd_af_conf {
	377	uint16_t keepalive;
eac6e3f0 RW	378	uint16_t lhello_holdtime;
eac6e3f0 RW	379	uint16_t lhello_interval;
8429abe0 RW	380	uint16_t thello_holdtime;
	381	uint16_t thello_interval;
	382	union ldpd_addr trans_addr;
	383	int flags;
	384	};
	385	#define F_LDPD_AF_ENABLED 0x0001
	386	#define F_LDPD_AF_THELLO_ACCEPT 0x0002
	387	#define F_LDPD_AF_EXPNULL 0x0004
	388	#define F_LDPD_AF_NO_GTSM 0x0008
	389
	390	struct ldpd_conf {
	391	struct in_addr rtr_id;
	392	struct ldpd_af_conf ipv4;
	393	struct ldpd_af_conf ipv6;
	394	LIST_HEAD(, iface) iface_list;
	395	LIST_HEAD(, tnbr) tnbr_list;
	396	LIST_HEAD(, nbr_params) nbrp_list;
	397	LIST_HEAD(, l2vpn) l2vpn_list;
eac6e3f0 RW	398	uint16_t lhello_holdtime;
	399	uint16_t lhello_interval;
	400	uint16_t thello_holdtime;
	401	uint16_t thello_interval;
8429abe0 RW	402	uint16_t trans_pref;
	403	int flags;
	404	};
	405	#define F_LDPD_NO_FIB_UPDATE 0x0001
	406	#define F_LDPD_DS_CISCO_INTEROP 0x0002
eac6e3f0	407	#define F_LDPD_ENABLED 0x0004
8429abe0 RW	408
8429abe0 RW	409	struct ldpd_af_global {
eac6e3f0 RW	410	struct thread *disc_ev;
eac6e3f0 RW	411	struct thread *edisc_ev;
8429abe0 RW	412	int ldp_disc_socket;
	413	int ldp_edisc_socket;
	414	int ldp_session_socket;
	415	};
	416
	417	struct ldpd_global {
	418	int cmd_opts;
	419	time_t uptime;
eac6e3f0	420	struct in_addr rtr_id;
8429abe0 RW	421	struct ldpd_af_global ipv4;
	422	struct ldpd_af_global ipv6;
	423	uint32_t conf_seqnum;
	424	int pfkeysock;
	425	struct if_addr_head addr_list;
	426	LIST_HEAD(, adj) adj_list;
	427	struct in_addr mcast_addr_v4;
	428	struct in6_addr mcast_addr_v6;
	429	TAILQ_HEAD(, pending_conn) pending_conns;
	430	};
	431
	432	/* kroute */
	433	struct kroute {
	434	int af;
	435	union ldpd_addr prefix;
	436	uint8_t prefixlen;
	437	union ldpd_addr nexthop;
	438	uint32_t local_label;
	439	uint32_t remote_label;
	440	unsigned short ifindex;
	441	uint8_t priority;
	442	uint16_t flags;
	443	};
	444
	445	struct kpw {
	446	unsigned short ifindex;
	447	int pw_type;
	448	int af;
	449	union ldpd_addr nexthop;
	450	uint32_t local_label;
	451	uint32_t remote_label;
	452	uint8_t flags;
	453	};
	454
	455	struct kaddr {
	456	unsigned short ifindex;
	457	int af;
	458	union ldpd_addr addr;
	459	uint8_t prefixlen;
	460	union ldpd_addr dstbrd;
	461	};
	462
	463	struct kif {
	464	char ifname[IF_NAMESIZE];
	465	unsigned short ifindex;
	466	int flags;
8429abe0	467	int mtu;
8429abe0 RW	468	};
	469
	470	/* control data structures */
	471	struct ctl_iface {
	472	int af;
	473	char name[IF_NAMESIZE];
	474	unsigned int ifindex;
	475	int state;
	476	uint16_t flags;
8429abe0	477	enum iface_type type;
8429abe0 RW	478	uint16_t hello_holdtime;
	479	uint16_t hello_interval;
	480	time_t uptime;
	481	uint16_t adj_cnt;
	482	};
	483
eac6e3f0 RW	484	struct ctl_disc_if {
	485	char name[IF_NAMESIZE];
	486	int active_v4;
	487	int active_v6;
	488	int no_adj;
	489	};
	490
	491	struct ctl_disc_tnbr {
	492	int af;
	493	union ldpd_addr addr;
	494	int no_adj;
	495	};
	496
8429abe0 RW	497	struct ctl_adj {
	498	int af;
	499	struct in_addr id;
	500	enum hello_type type;
	501	char ifname[IF_NAMESIZE];
	502	union ldpd_addr src_addr;
	503	uint16_t holdtime;
	504	union ldpd_addr trans_addr;
	505	};
	506
	507	struct ctl_nbr {
	508	int af;
	509	struct in_addr id;
	510	union ldpd_addr laddr;
eac6e3f0	511	in_port_t lport;
8429abe0	512	union ldpd_addr raddr;
eac6e3f0 RW	513	in_port_t rport;
eac6e3f0 RW	514	uint16_t holdtime;
8429abe0 RW	515	time_t uptime;
	516	int nbr_state;
	517	};
	518
	519	struct ctl_rt {
	520	int af;
	521	union ldpd_addr prefix;
	522	uint8_t prefixlen;
	523	struct in_addr nexthop; /* lsr-id */
	524	uint32_t local_label;
	525	uint32_t remote_label;
	526	uint8_t flags;
	527	uint8_t in_use;
eac6e3f0	528	int first;
8429abe0 RW	529	};
	530
	531	struct ctl_pw {
	532	uint16_t type;
eac6e3f0	533	char l2vpn_name[L2VPN_NAME_LEN];
8429abe0 RW	534	char ifname[IF_NAMESIZE];
	535	uint32_t pwid;
	536	struct in_addr lsr_id;
	537	uint32_t local_label;
	538	uint32_t local_gid;
	539	uint16_t local_ifmtu;
eac6e3f0	540	uint8_t local_cword;
8429abe0 RW	541	uint32_t remote_label;
	542	uint32_t remote_gid;
	543	uint16_t remote_ifmtu;
eac6e3f0	544	uint8_t remote_cword;
8429abe0 RW	545	uint32_t status;
	546	};
	547
	548	extern struct ldpd_conf *ldpd_conf;
	549	extern struct ldpd_global global;
	550
	551	/* parse.y */
	552	struct ldpd_conf parse_config(char );
	553	int cmdline_symset(char *);
	554
	555	/* kroute.c */
8429abe0 RW	556	void kif_redistribute(const char *);
	557	int kr_change(struct kroute *);
	558	int kr_delete(struct kroute *);
8429abe0 RW	559	int kmpw_set(struct kpw *);
	560	int kmpw_unset(struct kpw *);
	561
	562	/* util.c */
	563	uint8_t mask2prefixlen(in_addr_t);
	564	uint8_t mask2prefixlen6(struct sockaddr_in6 *);
	565	in_addr_t prefixlen2mask(uint8_t);
	566	struct in6_addr *prefixlen2mask6(uint8_t);
	567	void ldp_applymask(int, union ldpd_addr *,
	568	const union ldpd_addr *, int);
	569	int ldp_addrcmp(int, const union ldpd_addr *,
	570	const union ldpd_addr *);
	571	int ldp_addrisset(int, const union ldpd_addr *);
	572	int ldp_prefixcmp(int, const union ldpd_addr *,
	573	const union ldpd_addr *, uint8_t);
	574	int bad_addr_v4(struct in_addr);
	575	int bad_addr_v6(struct in6_addr *);
	576	int bad_addr(int, union ldpd_addr *);
	577	void embedscope(struct sockaddr_in6 *);
	578	void recoverscope(struct sockaddr_in6 *);
	579	void addscope(struct sockaddr_in6 *, uint32_t);
	580	void clearscope(struct in6_addr *);
	581	struct sockaddr addr2sa(int af, union ldpd_addr , uint16_t);
eac6e3f0 RW	582	void sa2addr(struct sockaddr , int , union ldpd_addr *,
	583	in_port_t *);
	584	socklen_t sockaddr_len(struct sockaddr *);
8429abe0 RW	585
8429abe0 RW	586	/* ldpd.c */
eac6e3f0	587	int ldp_write_handler(struct thread *);
8429abe0 RW	588	void main_imsg_compose_ldpe(int, pid_t, void *, uint16_t);
8429abe0 RW	589	void main_imsg_compose_lde(int, pid_t, void *, uint16_t);
eac6e3f0 RW	590	int main_imsg_compose_both(enum imsg_type, void *,
eac6e3f0 RW	591	uint16_t);
8429abe0	592	void imsg_event_add(struct imsgev *);
eac6e3f0 RW	593	int imsg_compose_event(struct imsgev *, uint16_t, uint32_t,
eac6e3f0 RW	594	pid_t, int, void *, uint16_t);
8429abe0 RW	595	void evbuf_enqueue(struct evbuf , struct ibuf );
8429abe0 RW	596	void evbuf_event_add(struct evbuf *);
eac6e3f0 RW	597	void evbuf_init(struct evbuf *, int,
eac6e3f0 RW	598	int ()(struct thread ), void *);
8429abe0 RW	599	void evbuf_clear(struct evbuf *);
	600	struct ldpd_af_conf ldp_af_conf_get(struct ldpd_conf , int);
	601	struct ldpd_af_global ldp_af_global_get(struct ldpd_global , int);
	602	int ldp_is_dual_stack(struct ldpd_conf *);
eac6e3f0 RW	603	in_addr_t ldp_rtr_id_get(struct ldpd_conf *);
eac6e3f0 RW	604	int ldp_reload(struct ldpd_conf *);
b67c140b RW	605	int ldp_reload_ref(struct ldpd_conf , void *);
b67c140b RW	606	struct ldpd_conf ldp_dup_config_ref(struct ldpd_conf , void **ref);
eac6e3f0 RW	607	struct ldpd_conf ldp_dup_config(struct ldpd_conf );
eac6e3f0 RW	608	void ldp_clear_config(struct ldpd_conf *);
8429abe0 RW	609	void merge_config(struct ldpd_conf , struct ldpd_conf );
	610	struct ldpd_conf *config_new_empty(void);
	611	void config_clear(struct ldpd_conf *);
	612
bbee85d2 RW	613	/* ldp_vty_conf.c */
	614	/* NOTE: the parameters' names should be preserved because of codegen */
	615	struct iface iface_new_api(struct ldpd_conf cfg,
	616	const char *name);
	617	void iface_del_api(struct iface *iface);
	618	struct tnbr tnbr_new_api(struct ldpd_conf cfg, int af,
	619	union ldpd_addr *addr);
	620	void tnbr_del_api(struct tnbr *tnbr);
	621	struct nbr_params nbrp_new_api(struct ldpd_conf cfg,
	622	struct in_addr lsr_id);
	623	void nbrp_del_api(struct nbr_params *nbrp);
	624	struct l2vpn l2vpn_new_api(struct ldpd_conf cfg, const char *name);
	625	void l2vpn_del_api(struct l2vpn *l2vpn);
	626	struct l2vpn_if l2vpn_if_new_api(struct ldpd_conf conf,
	627	struct l2vpn l2vpn, const char ifname);
	628	void l2vpn_if_del_api(struct l2vpn_if *lif);
	629	struct l2vpn_pw l2vpn_pw_new_api(struct ldpd_conf conf,
	630	struct l2vpn l2vpn, const char ifname);
	631	void l2vpn_pw_del_api(struct l2vpn_pw *pw);
	632
8429abe0 RW	633	/* socket.c */
8429abe0 RW	634	int ldp_create_socket(int, enum socket_type);
eac6e3f0 RW	635	void sock_set_nonblock(int);
eac6e3f0 RW	636	void sock_set_cloexec(int);
8429abe0 RW	637	void sock_set_recvbuf(int);
	638	int sock_set_reuse(int, int);
	639	int sock_set_bindany(int, int);
eac6e3f0	640	int sock_set_md5sig(int, int, union ldpd_addr , const char );
8429abe0	641	int sock_set_ipv4_tos(int, int);
eac6e3f0 RW	642	int sock_set_ipv4_pktinfo(int, int);
eac6e3f0 RW	643	int sock_set_ipv4_recvdstaddr(int, int);
8429abe0 RW	644	int sock_set_ipv4_recvif(int, int);
	645	int sock_set_ipv4_minttl(int, int);
	646	int sock_set_ipv4_ucast_ttl(int fd, int);
	647	int sock_set_ipv4_mcast_ttl(int, uint8_t);
	648	int sock_set_ipv4_mcast(struct iface *);
	649	int sock_set_ipv4_mcast_loop(int);
	650	int sock_set_ipv6_dscp(int, int);
	651	int sock_set_ipv6_pktinfo(int, int);
	652	int sock_set_ipv6_minhopcount(int, int);
	653	int sock_set_ipv6_ucast_hops(int, int);
	654	int sock_set_ipv6_mcast_hops(int, int);
	655	int sock_set_ipv6_mcast(struct iface *);
	656	int sock_set_ipv6_mcast_loop(int);
	657
eac6e3f0 RW	658	/* quagga */
	659	extern struct thread_master *master;
	660
	661	/* ldp_zebra.c */
	662	void ldp_zebra_init(struct thread_master *);
	663
	664	/* compatibility */
	665	#ifndef __OpenBSD__
	666	#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
	667	#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
	668	#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
	669	(IN6_IS_ADDR_MULTICAST(a) && \
	670	(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_INTFACELOCAL))
	671	#endif
8429abe0 RW	672
8429abe0 RW	673	#endif /* _LDPD_H_ */