/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
* 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);
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