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96c9bb21aa
using the scatter/gather array to transfer the link
information. The whole link is now passed in one message.
This is far better than the two `/bin/cat' processes per additional
link :-) I remember years ago thinking that file descriptor
transferral would be a really amazing facility !
Suggested by: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
and: Eivind Eklund <eivind@yes.no>
127 lines
4.8 KiB
C
127 lines
4.8 KiB
C
/*-
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* Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: datalink.h,v 1.1.2.21 1998/05/01 19:24:24 brian Exp $
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*/
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#define DATALINK_CLOSED (0)
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#define DATALINK_OPENING (1)
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#define DATALINK_HANGUP (2)
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#define DATALINK_DIAL (3)
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#define DATALINK_LOGIN (4)
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#define DATALINK_READY (5)
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#define DATALINK_LCP (6)
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#define DATALINK_AUTH (7)
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#define DATALINK_OPEN (8)
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#define DATALINK_MAXNAME (20)
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struct iovec;
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struct prompt;
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struct physical;
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struct bundle;
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struct datalink {
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struct descriptor desc; /* We play either a physical or a chat */
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int state; /* Our DATALINK_* state */
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struct physical *physical; /* Our link */
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struct chat chat; /* For bringing the link up & down */
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struct {
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unsigned run : 1; /* run scripts ? */
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unsigned packetmode : 1; /* Go into packet mode after login ? */
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} script;
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struct pppTimer dial_timer; /* For timing between opens & scripts */
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struct {
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struct {
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char dial[SCRIPT_LEN]; /* dial */
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char login[SCRIPT_LEN]; /* login */
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char hangup[SCRIPT_LEN]; /* hangup */
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} script;
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struct {
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char list[SCRIPT_LEN]; /* Telephone Numbers */
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} phone;
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struct {
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int max; /* initially try again this number of times */
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int next_timeout; /* Redial next timeout value */
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int timeout; /* Redial timeout value (end of phone list) */
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} dial;
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struct {
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int max; /* initially try again this number of times */
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int timeout; /* Timeout before reconnect on carrier loss */
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} reconnect;
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} cfg; /* All our config data is in here */
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struct {
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char list[SCRIPT_LEN]; /* copy of cfg.list for strsep() */
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char *next; /* Next phone from the list */
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char *alt; /* Next phone from the list */
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const char *chosen; /* Chosen phone number after DIAL */
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} phone;
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int dial_tries; /* currently try again this number of times */
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unsigned reconnect_tries; /* currently try again this number of times */
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char *name; /* Our name */
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struct peerid peer; /* Peer identification */
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struct fsm_parent fsmp; /* Our callback functions */
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const struct fsm_parent *parent; /* Our parent */
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struct authinfo pap; /* Authentication using pap */
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struct chap chap; /* Authentication using chap */
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struct mp_link mp; /* multilink data */
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struct bundle *bundle; /* for the moment */
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struct datalink *next; /* Next in the list */
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};
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#define descriptor2datalink(d) \
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((d)->type == DATALINK_DESCRIPTOR ? (struct datalink *)(d) : NULL)
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extern struct datalink *datalink_Create(const char *name, struct bundle *, int);
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extern struct datalink *datalink_Clone(struct datalink *, const char *);
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extern struct datalink *iov2datalink(struct bundle *, struct iovec *, int *,
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int, int);
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extern int datalink2iov(struct datalink *, struct iovec *, int *, int);
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extern struct datalink *datalink_Destroy(struct datalink *);
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extern void datalink_GotAuthname(struct datalink *, const char *, int);
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extern void datalink_Up(struct datalink *, int, int);
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extern void datalink_Close(struct datalink *, int);
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extern void datalink_Down(struct datalink *, int);
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extern void datalink_StayDown(struct datalink *);
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extern void datalink_AuthOk(struct datalink *);
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extern void datalink_AuthNotOk(struct datalink *);
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extern int datalink_Show(struct cmdargs const *);
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extern int datalink_SetRedial(struct cmdargs const *);
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extern int datalink_SetReconnect(struct cmdargs const *);
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extern const char *datalink_State(struct datalink *);
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extern void datalink_Rename(struct datalink *);
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