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mirror_frr/ldpd/ldpd.h
lynne ff5279ba48 ldpd: make allowing broken-lsps to be installed with pop operation configurable 
If LDP is miss configured in a setup and the router has LSPs with no remote
label, this code installs the LSP with a pop instruction of the top-level
label so the packet can be forwarded using IP.   This is a best-effort
attempt to deliver labeled IP packets to their final destination instead of
dropping them.    If this config is turned off the code will only install
LSPs that have a valid remote label.

Signed-off-by: Lynne Morrison <lynne@voltanet.io>
2021-05-03 09:02:36 -04:00

924 lines
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/* $OpenBSD$ */
/*
* 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 "queue.h"
#include "openbsd-tree.h"
#include "imsg.h"
#include "thread.h"
#include "qobj.h"
#include "prefix.h"
#include "filter.h"
#include "vty.h"
#include "pw.h"
#include "zclient.h"
#include "ldp.h"
#include "lib/ldp_sync.h"
#define CONF_FILE "/etc/ldpd.conf"
#define LDPD_USER "_ldpd"
#define LDPD_FD_ASYNC 3
#define LDPD_FD_SYNC 4
#define LDPD_OPT_VERBOSE 0x00000001
#define LDPD_OPT_VERBOSE2 0x00000002
#define LDPD_OPT_NOACTION 0x00000004
#define TCP_MD5_KEY_LEN 80
#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_DISCOVERY_DTL,
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_LIB_BEGIN,
IMSG_CTL_SHOW_LIB_SENT,
IMSG_CTL_SHOW_LIB_RCVD,
IMSG_CTL_SHOW_LIB_END,
IMSG_CTL_SHOW_L2VPN_PW,
IMSG_CTL_SHOW_L2VPN_BINDING,
IMSG_CTL_SHOW_LDP_SYNC,
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_KPW_ADD,
IMSG_KPW_DELETE,
IMSG_KPW_SET,
IMSG_KPW_UNSET,
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_UPDATE,
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,
IMSG_ACL_CHECK,
IMSG_INIT,
IMSG_PW_UPDATE,
IMSG_FILTER_UPDATE,
IMSG_NBR_SHUTDOWN,
IMSG_LDP_SYNC_IF_STATE_REQUEST,
IMSG_LDP_SYNC_IF_STATE_UPDATE,
IMSG_RLFA_REG,
IMSG_RLFA_UNREG_ALL,
IMSG_RLFA_LABELS,
IMSG_AGENTX_ENABLED,
};
struct ldpd_init {
char user[256];
char group[256];
char ctl_sock_path[MAXPATHLEN];
char zclient_serv_path[MAXPATHLEN];
unsigned short instance;
};
struct ldp_access {
char name[ACL_NAMSIZ];
};
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
};
/* LDP IGP Sync states */
#define LDP_SYNC_STA_UNKNOWN 0x0000
#define LDP_SYNC_STA_NOT_ACH 0x0001
#define LDP_SYNC_STA_ACH 0x0002
/* LDP IGP Sync events */
enum ldp_sync_event {
LDP_SYNC_EVT_NOTHING,
LDP_SYNC_EVT_LDP_SYNC_START,
LDP_SYNC_EVT_LDP_SYNC_COMPLETE,
LDP_SYNC_EVT_CONFIG_LDP_OFF,
LDP_SYNC_EVT_ADJ_DEL,
LDP_SYNC_EVT_ADJ_NEW,
LDP_SYNC_EVT_SESSION_CLOSE,
LDP_SYNC_EVT_CONFIG_LDP_ON,
LDP_SYNC_EVT_IFACE_SHUTDOWN
};
/* LDP IGP Sync actions */
enum ldp_sync_action {
LDP_SYNC_ACT_NOTHING,
LDP_SYNC_ACT_IFACE_START_SYNC,
LDP_SYNC_ACT_LDP_START_SYNC,
LDP_SYNC_ACT_LDP_COMPLETE_SYNC,
LDP_SYNC_ACT_CONFIG_LDP_OFF,
LDP_SYNC_ACT_IFACE_SHUTDOWN
};
/* forward declarations */
RB_HEAD(global_adj_head, adj);
RB_HEAD(nbr_adj_head, adj);
RB_HEAD(ia_adj_head, adj);
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;
struct {
uint8_t type;
union {
uint16_t prefix_af;
uint16_t pw_type;
} u;
} twcard;
} 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;
struct {
uint16_t type;
uint16_t length;
char *data;
} rtlvs;
uint8_t flags;
};
#define F_NOTIF_PW_STATUS 0x01 /* pseudowire status tlv present */
#define F_NOTIF_FEC 0x02 /* fec tlv present */
#define F_NOTIF_RETURNED_TLVS 0x04 /* returned tlvs 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;
struct ia_adj_head adj_tree;
time_t uptime;
struct thread *hello_timer;
uint16_t hello_holdtime;
uint16_t hello_interval;
};
struct iface_ldp_sync {
int state;
struct thread *wait_for_sync_timer;
};
struct iface {
RB_ENTRY(iface) entry;
char name[IF_NAMESIZE];
ifindex_t ifindex;
struct if_addr_head addr_list;
struct in6_addr linklocal;
enum iface_type type;
int operative;
struct iface_af ipv4;
struct iface_af ipv6;
struct iface_ldp_sync ldp_sync;
QOBJ_FIELDS;
};
RB_HEAD(iface_head, iface);
RB_PROTOTYPE(iface_head, iface, entry, iface_compare);
DECLARE_QOBJ_TYPE(iface);
/* source of targeted hellos */
struct tnbr {
RB_ENTRY(tnbr) entry;
struct thread *hello_timer;
struct adj *adj;
int af;
union ldpd_addr addr;
int state;
uint16_t pw_count;
uint32_t rlfa_count;
uint8_t flags;
QOBJ_FIELDS;
};
RB_HEAD(tnbr_head, tnbr);
RB_PROTOTYPE(tnbr_head, tnbr, entry, tnbr_compare);
DECLARE_QOBJ_TYPE(tnbr);
#define F_TNBR_CONFIGURED 0x01
#define F_TNBR_DYNAMIC 0x02
enum auth_method {
AUTH_NONE,
AUTH_MD5SIG
};
/* neighbor specific parameters */
struct nbr_params {
RB_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;
QOBJ_FIELDS;
};
RB_HEAD(nbrp_head, nbr_params);
RB_PROTOTYPE(nbrp_head, nbr_params, entry, nbr_params_compare);
DECLARE_QOBJ_TYPE(nbr_params);
#define F_NBRP_KEEPALIVE 0x01
#define F_NBRP_GTSM 0x02
#define F_NBRP_GTSM_HOPS 0x04
struct ldp_stats {
uint32_t kalive_sent;
uint32_t kalive_rcvd;
uint32_t addr_sent;
uint32_t addr_rcvd;
uint32_t addrwdraw_sent;
uint32_t addrwdraw_rcvd;
uint32_t notif_sent;
uint32_t notif_rcvd;
uint32_t capability_sent;
uint32_t capability_rcvd;
uint32_t labelmap_sent;
uint32_t labelmap_rcvd;
uint32_t labelreq_sent;
uint32_t labelreq_rcvd;
uint32_t labelwdraw_sent;
uint32_t labelwdraw_rcvd;
uint32_t labelrel_sent;
uint32_t labelrel_rcvd;
uint32_t labelabreq_sent;
uint32_t labelabreq_rcvd;
uint32_t unknown_tlv;
uint32_t unknown_msg;
};
struct ldp_entity_stats {
uint32_t session_attempts;
uint32_t session_rejects_hello;
uint32_t session_rejects_ad;
uint32_t session_rejects_max_pdu;
uint32_t session_rejects_lr;
uint32_t bad_ldp_id;
uint32_t bad_pdu_len;
uint32_t bad_msg_len;
uint32_t bad_tlv_len;
uint32_t malformed_tlv;
uint32_t keepalive_timer_exp;
uint32_t shutdown_rcv_notify;
uint32_t shutdown_send_notify;
};
struct l2vpn_if {
RB_ENTRY(l2vpn_if) entry;
struct l2vpn *l2vpn;
char ifname[IF_NAMESIZE];
ifindex_t ifindex;
int operative;
uint8_t mac[ETH_ALEN];
QOBJ_FIELDS;
};
RB_HEAD(l2vpn_if_head, l2vpn_if);
RB_PROTOTYPE(l2vpn_if_head, l2vpn_if, entry, l2vpn_if_compare);
DECLARE_QOBJ_TYPE(l2vpn_if);
struct l2vpn_pw {
RB_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];
ifindex_t ifindex;
bool enabled;
uint32_t remote_group;
uint16_t remote_mtu;
uint32_t local_status;
uint32_t remote_status;
uint8_t flags;
uint8_t reason;
QOBJ_FIELDS;
};
RB_HEAD(l2vpn_pw_head, l2vpn_pw);
RB_PROTOTYPE(l2vpn_pw_head, l2vpn_pw, entry, l2vpn_pw_compare);
DECLARE_QOBJ_TYPE(l2vpn_pw);
#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_STATIC_NBR_ADDR 0x10 /* static neighbor address configured */
#define F_PW_NO_ERR 0x00 /* no error reported */
#define F_PW_LOCAL_NOT_FWD 0x01 /* locally can't forward over PW */
#define F_PW_REMOTE_NOT_FWD 0x02 /* remote end of PW reported fwd error*/
#define F_PW_NO_REMOTE_LABEL 0x03 /* have not recvd label from peer */
#define F_PW_MTU_MISMATCH 0x04 /* mtu mismatch between peers */
struct l2vpn {
RB_ENTRY(l2vpn) entry;
char name[L2VPN_NAME_LEN];
int type;
int pw_type;
int mtu;
char br_ifname[IF_NAMESIZE];
ifindex_t br_ifindex;
struct l2vpn_if_head if_tree;
struct l2vpn_pw_head pw_tree;
struct l2vpn_pw_head pw_inactive_tree;
QOBJ_FIELDS;
};
RB_HEAD(l2vpn_head, l2vpn);
RB_PROTOTYPE(l2vpn_head, l2vpn, entry, l2vpn_compare);
DECLARE_QOBJ_TYPE(l2vpn);
#define L2VPN_TYPE_VPWS 1
#define L2VPN_TYPE_VPLS 2
/* ldp_conf */
extern enum ldpd_process {
PROC_MAIN,
PROC_LDP_ENGINE,
PROC_LDE_ENGINE
} ldpd_process;
static const char * const log_procnames[] = {
"parent",
"ldpe",
"lde"
};
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;
char acl_thello_accept_from[ACL_NAMSIZ];
char acl_label_allocate_for[ACL_NAMSIZ];
char acl_label_advertise_to[ACL_NAMSIZ];
char acl_label_advertise_for[ACL_NAMSIZ];
char acl_label_expnull_for[ACL_NAMSIZ];
char acl_label_accept_from[ACL_NAMSIZ];
char acl_label_accept_for[ACL_NAMSIZ];
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
#define F_LDPD_AF_ALLOCHOSTONLY 0x0010
struct ldpd_conf {
struct in_addr rtr_id;
struct ldpd_af_conf ipv4;
struct ldpd_af_conf ipv6;
struct iface_head iface_tree;
struct tnbr_head tnbr_tree;
struct nbrp_head nbrp_tree;
struct l2vpn_head l2vpn_tree;
uint16_t lhello_holdtime;
uint16_t lhello_interval;
uint16_t thello_holdtime;
uint16_t thello_interval;
uint16_t trans_pref;
uint16_t wait_for_sync_interval;
int flags;
time_t config_change_time;
struct ldp_entity_stats stats;
QOBJ_FIELDS;
};
DECLARE_QOBJ_TYPE(ldpd_conf);
#define F_LDPD_NO_FIB_UPDATE 0x0001
#define F_LDPD_DS_CISCO_INTEROP 0x0002
#define F_LDPD_ENABLED 0x0004
#define F_LDPD_ORDERED_CONTROL 0x0008
#define F_LDPD_ALLOW_BROKEN_LSP 0x0010
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;
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;
struct global_adj_head adj_tree;
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;
ifindex_t ifindex;
uint8_t route_type;
uint8_t route_instance;
uint16_t flags;
};
struct kaddr {
char ifname[IF_NAMESIZE];
ifindex_t ifindex;
int af;
union ldpd_addr addr;
uint8_t prefixlen;
union ldpd_addr dstbrd;
};
struct kif {
char ifname[IF_NAMESIZE];
ifindex_t ifindex;
int flags;
int operative;
uint8_t mac[ETH_ALEN];
int mtu;
};
struct acl_check {
char acl[ACL_NAMSIZ];
int af;
union ldpd_addr addr;
uint8_t prefixlen;
};
/* control data structures */
struct ctl_iface {
int af;
char name[IF_NAMESIZE];
ifindex_t ifindex;
int state;
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;
uint16_t holdtime_remaining;
union ldpd_addr trans_addr;
int ds_tlv;
};
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;
enum auth_method auth_method;
uint16_t holdtime;
time_t uptime;
int nbr_state;
struct ldp_stats stats;
int flags;
uint16_t max_pdu_len;
uint16_t hold_time_remaining;
};
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 no_downstream;
};
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;
uint8_t reason;
};
struct ctl_ldp_sync {
char name[IF_NAMESIZE];
ifindex_t ifindex;
bool in_sync;
bool timer_running;
uint16_t wait_time;
uint16_t wait_time_remaining;
struct in_addr peer_ldp_id;
};
extern struct ldpd_conf *ldpd_conf, *vty_conf;
extern struct ldpd_global global;
extern struct ldpd_init init;
/* parse.y */
struct ldpd_conf *parse_config(char *);
int cmdline_symset(char *);
/* kroute.c */
void pw2zpw(struct l2vpn_pw *, struct zapi_pw *);
void kif_redistribute(const char *);
int kr_change(struct kroute *);
int kr_delete(struct kroute *);
int kmpw_add(struct zapi_pw *);
int kmpw_del(struct zapi_pw *);
int kmpw_set(struct zapi_pw *);
int kmpw_unset(struct zapi_pw *);
/* 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 *);
void addr2sa(int af, const union ldpd_addr *, uint16_t,
union sockunion *su);
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 *);
int ldp_acl_request(struct imsgev *, char *, int,
union ldpd_addr *, uint8_t);
void ldp_acl_reply(struct imsgev *, struct acl_check *);
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_config_apply(struct vty *, 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 *conf,
const char *name);
void iface_del_api(struct ldpd_conf *conf,
struct iface *iface);
struct tnbr *tnbr_new_api(struct ldpd_conf *conf, int af,
union ldpd_addr *addr);
void tnbr_del_api(struct ldpd_conf *conf, struct tnbr *tnbr);
struct nbr_params *nbrp_new_api(struct ldpd_conf *conf,
struct in_addr lsr_id);
void nbrp_del_api(struct ldpd_conf *conf,
struct nbr_params *nbrp);
struct l2vpn *l2vpn_new_api(struct ldpd_conf *conf, const char *name);
void l2vpn_del_api(struct ldpd_conf *conf,
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 *l2vpn,
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 *l2vpn,
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 fd, ifindex_t ifindex);
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);
/* logmsg.h */
struct in6_addr;
union ldpd_addr;
struct hello_source;
struct fec;
const char *log_sockaddr(void *);
const char *log_in6addr(const struct in6_addr *);
const char *log_in6addr_scope(const struct in6_addr *addr,
ifindex_t ifidx);
const char *log_addr(int, const union ldpd_addr *);
char *log_label(uint32_t);
const char *log_time(time_t);
char *log_hello_src(const struct hello_source *);
const char *log_map(const struct map *);
const char *log_fec(const struct fec *);
const char *af_name(int);
const char *socket_name(int);
const char *nbr_state_name(int);
const char *if_state_name(int);
const char *if_type_name(enum iface_type);
const char *msg_name(uint16_t);
const char *status_code_name(uint32_t);
const char *pw_type_name(uint16_t);
const char *pw_error_code(uint8_t);
/* quagga */
extern struct thread_master *master;
extern char ctl_sock_path[MAXPATHLEN];
/* ldp_zebra.c */
void ldp_zebra_init(struct thread_master *);
void ldp_zebra_destroy(void);
int ldp_sync_zebra_send_state_update(struct ldp_igp_sync_if_state *);
int ldp_zebra_send_rlfa_labels(struct zapi_rlfa_response *
rlfa_labels);
void ldp_zebra_regdereg_zebra_info(bool want_register);
/* 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
DECLARE_HOOK(ldp_register_mib, (struct thread_master * tm), (tm));
extern void ldp_agentx_enabled(void);
#endif /* _LDPD_H_ */
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