/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 1998 Brian Somers * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #define DATALINK_CLOSED (0) #define DATALINK_OPENING (1) #define DATALINK_HANGUP (2) #define DATALINK_DIAL (3) #define DATALINK_CARRIER (4) #define DATALINK_LOGOUT (5) #define DATALINK_LOGIN (6) #define DATALINK_READY (7) #define DATALINK_LCP (8) #define DATALINK_AUTH (9) #define DATALINK_CBCP (10) #define DATALINK_OPEN (11) #define DATALINK_MAXNAME (20) /* Maximum datalink::name length */ /* How to close the link */ #define CLOSE_NORMAL 0 #define CLOSE_STAYDOWN 1 #define CLOSE_LCP 2 struct iovec; struct prompt; struct physical; struct bundle; struct datalink { struct fdescriptor desc; /* We play either a physical or a chat */ unsigned state; /* Our DATALINK_* state */ struct physical *physical; /* Our link */ struct chat chat; /* For bringing the link up & down */ unsigned stayonline : 1; /* stay online when LCP is closed ? */ struct { unsigned run : 1; /* run scripts ? */ unsigned packetmode : 1; /* Go into packet mode after login ? */ } script; struct { struct { char dial[SCRIPT_LEN]; char login[SCRIPT_LEN]; char logout[SCRIPT_LEN]; char hangup[SCRIPT_LEN]; } script; /* various chat scripts */ struct { char list[SCRIPT_LEN]; /* Telephone Numbers */ } phone; struct { int max; /* initially try again this number of times */ int next_timeout; /* Redial next timeout value */ int inc; /* Increment timeout by `inc' each time read */ int maxinc; /* Maximum number of increments */ int timeout; /* Redial timeout value (end of phone list) */ } dial; struct { int max; /* initially try again this number of times */ int timeout; /* Timeout before reconnect on carrier loss */ } reconnect; struct callback callback; /* Direction depends on physical type */ struct cbcpcfg cbcp; /* Direction depends on phys type & callback */ } cfg; /* All our config data is in here */ struct { char list[SCRIPT_LEN]; /* copy of cfg.list for strsep() */ char *next; /* Next phone from the list */ char *alt; /* Alternate (after fail) phone from the list */ const char *chosen; /* Chosen phone number after DIAL */ } phone; struct cbcp cbcp; struct { struct pppTimer timer; /* For timing between close & open */ int tries; /* currently try again this number of times */ int incs; /* # times our timeout has been incremented */ } dial; unsigned reconnect_tries; /* currently try again this number of times */ char *name; /* Our name */ struct peerid peer; /* Peer identification */ struct fsm_parent fsmp; /* Our callback functions */ const struct fsm_parent *parent; /* Our parent */ struct authinfo pap; /* Authentication using pap */ struct chap chap; /* Authentication using chap */ struct mp_link mp; /* multilink data */ struct bundle *bundle; /* for the moment */ struct datalink *next; /* Next in the list */ }; #define descriptor2datalink(d) \ ((d)->type == DATALINK_DESCRIPTOR ? (struct datalink *)(d) : NULL) extern struct datalink *datalink_Create(const char *name, struct bundle *, int); extern struct datalink *datalink_Clone(struct datalink *, const char *); extern struct datalink *iov2datalink(struct bundle *, struct iovec *, int *, int, int, int *, int *); extern int datalink2iov(struct datalink *, struct iovec *, int *, int, int *, int *); extern struct datalink *datalink_Destroy(struct datalink *); extern void datalink_GotAuthname(struct datalink *, const char *); extern void datalink_Up(struct datalink *, int, int); extern void datalink_Close(struct datalink *, int); extern void datalink_Down(struct datalink *, int); extern void datalink_StayDown(struct datalink *); extern void datalink_DontHangup(struct datalink *); extern void datalink_AuthOk(struct datalink *); extern void datalink_AuthNotOk(struct datalink *); extern void datalink_NCPUp(struct datalink *); extern void datalink_CBCPComplete(struct datalink *); extern void datalink_CBCPFailed(struct datalink *); extern int datalink_Show(struct cmdargs const *); extern int datalink_SetRedial(struct cmdargs const *); extern int datalink_SetReconnect(struct cmdargs const *); extern const char *datalink_State(struct datalink *); extern void datalink_Rename(struct datalink *, const char *); extern int datalink_RemoveFromSet(struct datalink *, fd_set *, fd_set *, fd_set *); extern int datalink_SetMode(struct datalink *, int); extern int datalink_GetDialTimeout(struct datalink *); extern const char *datalink_ChoosePhoneNumber(struct datalink *); extern void datalink_ComeDown(struct datalink *, int);