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cc9f21da22
The int return value is never used. Modify the code base to just return a void instead. Signed-off-by: Donald Sharp <sharpd@nvidia.com>
325 lines
11 KiB
C
325 lines
11 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
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* Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
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* Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _LDPE_H_
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#define _LDPE_H_
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#include "queue.h"
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#include "openbsd-tree.h"
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#ifdef __OpenBSD__
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#include <net/pfkeyv2.h>
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#endif
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#include "ldpd.h"
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#include "lib/ldp_sync.h"
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/* forward declarations */
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TAILQ_HEAD(mapping_head, mapping_entry);
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struct hello_source {
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enum hello_type type;
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struct {
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struct iface_af *ia;
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union ldpd_addr src_addr;
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} link;
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struct tnbr *target;
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};
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struct adj {
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RB_ENTRY(adj) global_entry, nbr_entry, ia_entry;
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struct in_addr lsr_id;
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struct nbr *nbr;
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int ds_tlv;
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struct hello_source source;
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struct thread *inactivity_timer;
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uint16_t holdtime;
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union ldpd_addr trans_addr;
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};
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RB_PROTOTYPE(global_adj_head, adj, global_entry, adj_compare)
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RB_PROTOTYPE(nbr_adj_head, adj, nbr_entry, adj_compare)
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RB_PROTOTYPE(ia_adj_head, adj, ia_entry, adj_compare)
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struct tcp_conn {
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struct nbr *nbr;
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int fd;
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struct ibuf_read *rbuf;
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struct evbuf wbuf;
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struct thread *rev;
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in_port_t lport;
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in_port_t rport;
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};
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struct nbr {
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RB_ENTRY(nbr) id_tree, addr_tree, pid_tree;
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struct tcp_conn *tcp;
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struct nbr_adj_head adj_tree; /* adjacencies */
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struct thread *ev_connect;
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struct thread *keepalive_timer;
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struct thread *keepalive_timeout;
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struct thread *init_timeout;
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struct thread *initdelay_timer;
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struct mapping_head mapping_list;
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struct mapping_head withdraw_list;
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struct mapping_head request_list;
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struct mapping_head release_list;
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struct mapping_head abortreq_list;
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uint32_t peerid; /* unique ID in DB */
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int af;
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int ds_tlv;
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int v4_enabled; /* announce/process v4 msgs */
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int v6_enabled; /* announce/process v6 msgs */
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struct in_addr id; /* lsr id */
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union ldpd_addr laddr; /* local address */
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union ldpd_addr raddr; /* remote address */
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ifindex_t raddr_scope; /* remote address scope (v6) */
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time_t uptime;
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int fd;
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int state;
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uint32_t conf_seqnum;
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int idtimer_cnt;
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uint16_t keepalive;
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uint16_t max_pdu_len;
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struct ldp_stats stats;
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struct {
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uint8_t established;
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uint32_t spi_in;
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uint32_t spi_out;
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enum auth_method method;
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char md5key[TCP_MD5_KEY_LEN];
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} auth;
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int flags;
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};
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#define F_NBR_GTSM_NEGOTIATED 0x01
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#define F_NBR_CAP_DYNAMIC 0x02
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#define F_NBR_CAP_TWCARD 0x04
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#define F_NBR_CAP_UNOTIF 0x08
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RB_HEAD(nbr_id_head, nbr);
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RB_PROTOTYPE(nbr_id_head, nbr, id_tree, nbr_id_compare)
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RB_HEAD(nbr_addr_head, nbr);
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RB_PROTOTYPE(nbr_addr_head, nbr, addr_tree, nbr_addr_compare)
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RB_HEAD(nbr_pid_head, nbr);
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RB_PROTOTYPE(nbr_pid_head, nbr, pid_tree, nbr_pid_compare)
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struct pending_conn {
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TAILQ_ENTRY(pending_conn) entry;
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int fd;
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int af;
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union ldpd_addr addr;
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struct thread *ev_timeout;
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};
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#define PENDING_CONN_TIMEOUT 5
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struct mapping_entry {
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TAILQ_ENTRY(mapping_entry) entry;
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struct map map;
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};
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struct ldpd_sysdep {
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uint8_t no_pfkey;
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uint8_t no_md5sig;
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};
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extern struct ldpd_conf *leconf;
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extern struct ldpd_sysdep sysdep;
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extern struct nbr_id_head nbrs_by_id;
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extern struct nbr_addr_head nbrs_by_addr;
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extern struct nbr_pid_head nbrs_by_pid;
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/* accept.c */
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void accept_init(void);
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int accept_add(int, void (*)(struct thread *), void *);
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void accept_del(int);
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void accept_pause(void);
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void accept_unpause(void);
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/* hello.c */
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int send_hello(enum hello_type, struct iface_af *, struct tnbr *);
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void recv_hello(struct in_addr, struct ldp_msg *, int, union ldpd_addr *,
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struct iface *, int, char *, uint16_t);
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/* init.c */
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void send_init(struct nbr *);
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int recv_init(struct nbr *, char *, uint16_t);
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void send_capability(struct nbr *, uint16_t, int);
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int recv_capability(struct nbr *, char *, uint16_t);
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/* keepalive.c */
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void send_keepalive(struct nbr *);
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int recv_keepalive(struct nbr *, char *, uint16_t);
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/* notification.c */
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void send_notification_full(struct tcp_conn *, struct notify_msg *);
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void send_notification(struct tcp_conn *, uint32_t, uint32_t, uint16_t);
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void send_notification_rtlvs(struct nbr *, uint32_t, uint32_t, uint16_t,
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uint16_t, uint16_t, char *);
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int recv_notification(struct nbr *, char *, uint16_t);
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int gen_status_tlv(struct ibuf *, uint32_t, uint32_t, uint16_t);
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/* address.c */
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void send_address_single(struct nbr *, struct if_addr *, int);
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void send_address_all(struct nbr *, int);
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void send_mac_withdrawal(struct nbr *, struct map *, uint8_t *);
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int recv_address(struct nbr *, char *, uint16_t);
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/* labelmapping.c */
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#define PREFIX_SIZE(x) (((x) + 7) / 8)
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void send_labelmessage(struct nbr *, uint16_t, struct mapping_head *);
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int recv_labelmessage(struct nbr *, char *, uint16_t, uint16_t);
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int gen_pw_status_tlv(struct ibuf *, uint32_t);
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uint16_t len_fec_tlv(struct map *);
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int gen_fec_tlv(struct ibuf *, struct map *);
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int tlv_decode_fec_elm(struct nbr *, struct ldp_msg *, char *,
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uint16_t, struct map *);
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/* ldpe.c */
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void ldpe(void);
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void ldpe_init(struct ldpd_init *);
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int ldpe_imsg_compose_parent(int, pid_t, void *,
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uint16_t);
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void ldpe_imsg_compose_parent_sync(int, pid_t, void *, uint16_t);
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int ldpe_imsg_compose_lde(int, uint32_t, pid_t, void *,
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uint16_t);
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int ldpe_acl_check(char *, int, union ldpd_addr *, uint8_t);
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void ldpe_reset_nbrs(int);
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void ldpe_reset_ds_nbrs(void);
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void ldpe_remove_dynamic_tnbrs(int);
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void ldpe_stop_init_backoff(int);
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struct ctl_conn;
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void ldpe_iface_ctl(struct ctl_conn *c, ifindex_t ifidx);
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void ldpe_adj_ctl(struct ctl_conn *);
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void ldpe_adj_detail_ctl(struct ctl_conn *);
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void ldpe_nbr_ctl(struct ctl_conn *);
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void ldpe_ldp_sync_ctl(struct ctl_conn *);
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void mapping_list_add(struct mapping_head *, struct map *);
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void mapping_list_clr(struct mapping_head *);
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void ldpe_set_config_change_time(void);
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/* interface.c */
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struct iface *if_new(const char *);
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void ldpe_if_init(struct iface *);
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void ldpe_if_exit(struct iface *);
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struct iface *if_lookup(struct ldpd_conf *c, ifindex_t ifidx);
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struct iface *if_lookup_name(struct ldpd_conf *, const char *);
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void if_update_info(struct iface *, struct kif *);
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struct iface_af *iface_af_get(struct iface *, int);
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void if_addr_add(struct kaddr *);
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void if_addr_del(struct kaddr *);
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void ldp_if_update(struct iface *, int);
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void if_update_all(int);
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uint16_t if_get_hello_holdtime(struct iface_af *);
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uint16_t if_get_hello_interval(struct iface_af *);
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uint16_t if_get_wait_for_sync_interval(void);
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struct ctl_iface *if_to_ctl(struct iface_af *);
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in_addr_t if_get_ipv4_addr(struct iface *);
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int ldp_sync_fsm_adj_event(struct adj *, enum ldp_sync_event);
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int ldp_sync_fsm_nbr_event(struct nbr *, enum ldp_sync_event);
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int ldp_sync_fsm_state_req(struct ldp_igp_sync_if_state_req *);
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int ldp_sync_fsm(struct iface *, enum ldp_sync_event);
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void ldp_sync_fsm_reset_all(void);
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const char *ldp_sync_state_name(int);
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const char *ldp_sync_event_name(int);
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struct ctl_ldp_sync *ldp_sync_to_ctl(struct iface *);
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/* adjacency.c */
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struct adj *adj_new(struct in_addr, struct hello_source *,
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union ldpd_addr *);
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void adj_del(struct adj *, uint32_t);
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struct adj *adj_find(struct in_addr, struct hello_source *);
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int adj_get_af(const struct adj *adj);
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void adj_start_itimer(struct adj *);
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void adj_stop_itimer(struct adj *);
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struct tnbr *tnbr_new(int, union ldpd_addr *);
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struct tnbr *tnbr_find(struct ldpd_conf *, int, union ldpd_addr *);
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struct tnbr *tnbr_check(struct ldpd_conf *, struct tnbr *);
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void tnbr_update(struct tnbr *);
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void tnbr_update_all(int);
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uint16_t tnbr_get_hello_holdtime(struct tnbr *);
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uint16_t tnbr_get_hello_interval(struct tnbr *);
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struct ctl_adj *adj_to_ctl(struct adj *);
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/* neighbor.c */
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int nbr_fsm(struct nbr *, enum nbr_event);
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struct nbr *nbr_new(struct in_addr, int, int, union ldpd_addr *,
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uint32_t);
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void nbr_del(struct nbr *);
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struct nbr *nbr_find_ldpid(uint32_t);
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struct nbr *nbr_get_first_ldpid(void);
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struct nbr *nbr_get_next_ldpid(uint32_t);
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struct nbr *nbr_find_addr(int, union ldpd_addr *);
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struct nbr *nbr_find_peerid(uint32_t);
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int nbr_adj_count(struct nbr *, int);
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int nbr_session_active_role(struct nbr *);
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void nbr_stop_ktimer(struct nbr *);
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void nbr_stop_ktimeout(struct nbr *);
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void nbr_stop_itimeout(struct nbr *);
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void nbr_start_idtimer(struct nbr *);
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void nbr_stop_idtimer(struct nbr *);
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int nbr_pending_idtimer(struct nbr *);
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int nbr_pending_connect(struct nbr *);
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int nbr_establish_connection(struct nbr *);
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int nbr_gtsm_enabled(struct nbr *, struct nbr_params *);
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int nbr_gtsm_setup(int, int, struct nbr_params *);
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int nbr_gtsm_check(int, struct nbr *, struct nbr_params *);
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struct nbr_params *nbr_params_new(struct in_addr);
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struct nbr_params *nbr_params_find(struct ldpd_conf *, struct in_addr);
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uint16_t nbr_get_keepalive(int, struct in_addr);
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struct ctl_nbr *nbr_to_ctl(struct nbr *);
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void nbr_clear_ctl(struct ctl_nbr *);
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/* packet.c */
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int gen_ldp_hdr(struct ibuf *, uint16_t);
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int gen_msg_hdr(struct ibuf *, uint16_t, uint16_t);
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int send_packet(int, int, union ldpd_addr *,
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struct iface_af *, void *, size_t);
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void disc_recv_packet(struct thread *thread);
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void session_accept(struct thread *thread);
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void session_accept_nbr(struct nbr *, int);
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void session_shutdown(struct nbr *, uint32_t, uint32_t,
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uint32_t);
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void session_close(struct nbr *);
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struct tcp_conn *tcp_new(int, struct nbr *);
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void pending_conn_del(struct pending_conn *);
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struct pending_conn *pending_conn_find(int, union ldpd_addr *);
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extern char *pkt_ptr; /* packet buffer */
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/* pfkey.c */
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#ifdef __OpenBSD__
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int pfkey_read(int, struct sadb_msg *);
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int pfkey_establish(struct nbr *, struct nbr_params *);
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int pfkey_remove(struct nbr *);
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int pfkey_init(void);
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#endif
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/* l2vpn.c */
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void ldpe_l2vpn_init(struct l2vpn *);
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void ldpe_l2vpn_exit(struct l2vpn *);
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void ldpe_l2vpn_pw_init(struct l2vpn_pw *);
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void ldpe_l2vpn_pw_exit(struct l2vpn_pw *);
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DECLARE_HOOK(ldp_nbr_state_change, (struct nbr * nbr, int old_state),
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(nbr, old_state));
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#endif /* _LDPE_H_ */
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