1210284Sjmallett/*- 2210284Sjmallett * SPDX-License-Identifier: BSD-2-Clause 3210284Sjmallett * 4210284Sjmallett * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 5210284Sjmallett * All rights reserved. 6210284Sjmallett * 7210284Sjmallett * Redistribution and use in source and binary forms, with or without 8210284Sjmallett * modification, are permitted provided that the following conditions 9210284Sjmallett * are met: 10210284Sjmallett * 1. Redistributions of source code must retain the above copyright 11210284Sjmallett * notice, this list of conditions and the following disclaimer. 12210284Sjmallett * 2. Redistributions in binary form must reproduce the above copyright 13210284Sjmallett * notice, this list of conditions and the following disclaimer in the 14210284Sjmallett * documentation and/or other materials provided with the distribution. 15210284Sjmallett * 16210284Sjmallett * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17210284Sjmallett * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18210284Sjmallett * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19210284Sjmallett * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20210284Sjmallett * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21210284Sjmallett * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22210284Sjmallett * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23210284Sjmallett * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24210284Sjmallett * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25210284Sjmallett * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26210284Sjmallett * SUCH DAMAGE. 27210284Sjmallett */ 28210284Sjmallett 29210284Sjmallett#define DATALINK_CLOSED (0) 30210284Sjmallett#define DATALINK_OPENING (1) 31210284Sjmallett#define DATALINK_HANGUP (2) 32210284Sjmallett#define DATALINK_DIAL (3) 33210284Sjmallett#define DATALINK_CARRIER (4) 34210284Sjmallett#define DATALINK_LOGOUT (5) 35210284Sjmallett#define DATALINK_LOGIN (6) 36210284Sjmallett#define DATALINK_READY (7) 37210284Sjmallett#define DATALINK_LCP (8) 38210284Sjmallett#define DATALINK_AUTH (9) 39210284Sjmallett#define DATALINK_CBCP (10) 40210284Sjmallett#define DATALINK_OPEN (11) 41210284Sjmallett 42210284Sjmallett#define DATALINK_MAXNAME (20) /* Maximum datalink::name length */ 43210284Sjmallett 44210284Sjmallett/* How to close the link */ 45210284Sjmallett#define CLOSE_NORMAL 0 46210284Sjmallett#define CLOSE_STAYDOWN 1 47210284Sjmallett#define CLOSE_LCP 2 48210284Sjmallett 49210284Sjmallettstruct iovec; 50210284Sjmallettstruct prompt; 51210284Sjmallettstruct physical; 52210284Sjmallettstruct bundle; 53210284Sjmallett 54210284Sjmallettstruct datalink { 55210284Sjmallett struct fdescriptor desc; /* We play either a physical or a chat */ 56210284Sjmallett unsigned state; /* Our DATALINK_* state */ 57210284Sjmallett struct physical *physical; /* Our link */ 58210284Sjmallett 59210284Sjmallett struct chat chat; /* For bringing the link up & down */ 60210284Sjmallett 61210284Sjmallett unsigned stayonline : 1; /* stay online when LCP is closed ? */ 62210284Sjmallett struct { 63210284Sjmallett unsigned run : 1; /* run scripts ? */ 64210284Sjmallett unsigned packetmode : 1; /* Go into packet mode after login ? */ 65210284Sjmallett } script; 66210284Sjmallett 67210284Sjmallett struct { 68210284Sjmallett struct { 69210284Sjmallett char dial[SCRIPT_LEN]; 70210284Sjmallett char login[SCRIPT_LEN]; 71210284Sjmallett char logout[SCRIPT_LEN]; 72210284Sjmallett char hangup[SCRIPT_LEN]; 73210284Sjmallett } script; /* various chat scripts */ 74210284Sjmallett struct { 75210284Sjmallett char list[SCRIPT_LEN]; /* Telephone Numbers */ 76210284Sjmallett } phone; 77210284Sjmallett struct { 78210284Sjmallett int max; /* initially try again this number of times */ 79210284Sjmallett int next_timeout; /* Redial next timeout value */ 80210284Sjmallett int inc; /* Increment timeout by `inc' each time read */ 81210284Sjmallett int maxinc; /* Maximum number of increments */ 82210284Sjmallett int timeout; /* Redial timeout value (end of phone list) */ 83210284Sjmallett } dial; 84210284Sjmallett struct { 85210284Sjmallett int max; /* initially try again this number of times */ 86210284Sjmallett int timeout; /* Timeout before reconnect on carrier loss */ 87210284Sjmallett } reconnect; 88210284Sjmallett struct callback callback; /* Direction depends on physical type */ 89210284Sjmallett struct cbcpcfg cbcp; /* Direction depends on phys type & callback */ 90210284Sjmallett } cfg; /* All our config data is in here */ 91210284Sjmallett 92210284Sjmallett struct { 93210284Sjmallett char list[SCRIPT_LEN]; /* copy of cfg.list for strsep() */ 94210284Sjmallett char *next; /* Next phone from the list */ 95210284Sjmallett char *alt; /* Alternate (after fail) phone from the list */ 96210284Sjmallett const char *chosen; /* Chosen phone number after DIAL */ 97210284Sjmallett } phone; 98210284Sjmallett 99210284Sjmallett struct cbcp cbcp; 100210284Sjmallett 101210284Sjmallett struct { 102210284Sjmallett struct pppTimer timer; /* For timing between close & open */ 103210284Sjmallett int tries; /* currently try again this number of times */ 104210284Sjmallett int incs; /* # times our timeout has been incremented */ 105210284Sjmallett } dial; 106210311Sjmallett 107210311Sjmallett unsigned reconnect_tries; /* currently try again this number of times */ 108210284Sjmallett 109210284Sjmallett char *name; /* Our name */ 110210284Sjmallett 111210284Sjmallett struct peerid peer; /* Peer identification */ 112210284Sjmallett 113210284Sjmallett struct fsm_parent fsmp; /* Our callback functions */ 114210284Sjmallett const struct fsm_parent *parent; /* Our parent */ 115210284Sjmallett 116210284Sjmallett struct authinfo pap; /* Authentication using pap */ 117210284Sjmallett struct chap chap; /* Authentication using chap */ 118210284Sjmallett 119210284Sjmallett struct mp_link mp; /* multilink data */ 120210284Sjmallett 121210284Sjmallett struct bundle *bundle; /* for the moment */ 122210311Sjmallett struct datalink *next; /* Next in the list */ 123210311Sjmallett}; 124210311Sjmallett 125210284Sjmallett#define descriptor2datalink(d) \ 126210311Sjmallett ((d)->type == DATALINK_DESCRIPTOR ? (struct datalink *)(d) : NULL) 127210284Sjmallett 128210284Sjmallettextern struct datalink *datalink_Create(const char *name, struct bundle *, int); 129210284Sjmallettextern struct datalink *datalink_Clone(struct datalink *, const char *); 130210284Sjmallettextern struct datalink *iov2datalink(struct bundle *, struct iovec *, int *, 131210284Sjmallett int, int, int *, int *); 132210284Sjmallettextern int datalink2iov(struct datalink *, struct iovec *, int *, int, int *, 133210284Sjmallett int *); 134210284Sjmallettextern struct datalink *datalink_Destroy(struct datalink *); 135210284Sjmallettextern void datalink_GotAuthname(struct datalink *, const char *); 136210284Sjmallettextern void datalink_Up(struct datalink *, int, int); 137210284Sjmallettextern void datalink_Close(struct datalink *, int); 138210284Sjmallettextern void datalink_Down(struct datalink *, int); 139210284Sjmallettextern void datalink_StayDown(struct datalink *); 140210284Sjmallettextern void datalink_DontHangup(struct datalink *); 141210284Sjmallettextern void datalink_AuthOk(struct datalink *); 142210284Sjmallettextern void datalink_AuthNotOk(struct datalink *); 143210284Sjmallettextern void datalink_NCPUp(struct datalink *); 144210284Sjmallettextern void datalink_CBCPComplete(struct datalink *); 145210284Sjmallettextern void datalink_CBCPFailed(struct datalink *); 146210284Sjmallettextern int datalink_Show(struct cmdargs const *); 147210284Sjmallettextern int datalink_SetRedial(struct cmdargs const *); 148210284Sjmallettextern int datalink_SetReconnect(struct cmdargs const *); 149210284Sjmallettextern const char *datalink_State(struct datalink *); 150210284Sjmallettextern void datalink_Rename(struct datalink *, const char *); 151210284Sjmallettextern int datalink_RemoveFromSet(struct datalink *, fd_set *, fd_set *, 152210284Sjmallett fd_set *); 153210284Sjmallettextern int datalink_SetMode(struct datalink *, int); 154210284Sjmallettextern int datalink_GetDialTimeout(struct datalink *); 155210284Sjmallettextern const char *datalink_ChoosePhoneNumber(struct datalink *); 156210284Sjmallettextern void datalink_ComeDown(struct datalink *, int); 157210284Sjmallett