166 lines
6.0 KiB
C
166 lines
6.0 KiB
C
/*
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* Written by Eivind Eklund <eivind@yes.no>
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* for Yes Interactive
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*
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* Copyright (C) 1998, Yes Interactive. All rights reserved.
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*
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* Redistribution and use in any form is permitted. Redistribution in
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* source form should include the above copyright and this set of
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* conditions, because large sections american law seems to have been
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* created by a bunch of jerks on drugs that are now illegal, forcing
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* me to include this copyright-stuff instead of placing this in the
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* public domain. The name of of 'Yes Interactive' or 'Eivind Eklund'
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $FreeBSD$
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*
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*/
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struct datalink;
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struct bundle;
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struct iovec;
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struct physical;
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struct bundle;
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struct ccp;
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struct cmdargs;
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/* Device types (don't use zero, it'll be confused with NULL in physical2iov */
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#define I4B_DEVICE 1
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#define TTY_DEVICE 2
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#define TCP_DEVICE 3
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#define UDP_DEVICE 4
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#define ETHER_DEVICE 5
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#define EXEC_DEVICE 6
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/* Returns from awaitcarrier() */
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#define CARRIER_PENDING 1
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#define CARRIER_OK 2
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#define CARRIER_LOST 3
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/* A cd ``necessity'' value */
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#define CD_VARIABLE 0
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#define CD_REQUIRED 1
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#define CD_NOTREQUIRED 2
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#define CD_DEFAULT 3
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struct cd {
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unsigned necessity : 2; /* A CD_ value */
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int delay; /* Wait this many seconds after login script */
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};
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struct device {
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int type;
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const char *name;
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struct cd cd;
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int (*awaitcarrier)(struct physical *);
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int (*removefromset)(struct physical *, fd_set *, fd_set *, fd_set *);
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int (*raw)(struct physical *);
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void (*offline)(struct physical *);
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void (*cooked)(struct physical *);
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void (*stoptimer)(struct physical *);
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void (*destroy)(struct physical *);
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ssize_t (*read)(struct physical *, void *, size_t);
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ssize_t (*write)(struct physical *, const void *, size_t);
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void (*device2iov)(struct device *, struct iovec *, int *, int, int *, int *);
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int (*speed)(struct physical *);
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const char *(*openinfo)(struct physical *);
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};
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struct physical {
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struct link link;
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struct fdescriptor desc;
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int type; /* What sort of PHYS_* link are we ? */
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struct async async; /* Our async state */
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struct hdlc hdlc; /* Our hdlc state */
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int fd; /* File descriptor for this device */
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struct mbuf *out; /* mbuf that suffered a short write */
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int connect_count;
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struct datalink *dl; /* my owner */
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struct {
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u_char buf[MAX_MRU]; /* Our input data buffer */
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size_t sz;
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} input;
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struct {
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char full[DEVICE_LEN]; /* Our current device name */
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char *base;
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} name;
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time_t Utmp; /* Are we in utmp ? */
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pid_t session_owner; /* HUP this when closing the link */
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struct device *handler; /* device specific handler */
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struct {
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unsigned rts_cts : 1; /* Is rts/cts enabled ? */
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unsigned parity; /* What parity is enabled? (tty flags) */
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unsigned speed; /* tty speed */
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char devlist[LINE_LEN]; /* NUL separated list of devices */
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int ndev; /* number of devices in list */
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struct cd cd;
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} cfg;
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};
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#define field2phys(fp, name) \
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((struct physical *)((char *)fp - (int)(&((struct physical *)0)->name)))
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#define link2physical(l) \
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((l)->type == PHYSICAL_LINK ? field2phys(l, link) : NULL)
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#define descriptor2physical(d) \
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((d)->type == PHYSICAL_DESCRIPTOR ? field2phys(d, desc) : NULL)
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#define PHYSICAL_NOFORCE 1
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#define PHYSICAL_FORCE_ASYNC 2
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#define PHYSICAL_FORCE_SYNC 3
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#define PHYSICAL_FORCE_SYNCNOACF 4
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extern struct physical *physical_Create(struct datalink *, int);
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extern int physical_Open(struct physical *, struct bundle *);
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extern int physical_Raw(struct physical *);
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extern int physical_GetSpeed(struct physical *);
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extern int physical_SetSpeed(struct physical *, int);
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extern int physical_SetParity(struct physical *, const char *);
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extern int physical_SetRtsCts(struct physical *, int);
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extern void physical_SetSync(struct physical *);
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extern int physical_ShowStatus(struct cmdargs const *);
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extern void physical_Offline(struct physical *);
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extern void physical_Close(struct physical *);
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extern void physical_Destroy(struct physical *);
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extern struct physical *iov2physical(struct datalink *, struct iovec *, int *,
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int, int, int *, int *);
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extern int physical2iov(struct physical *, struct iovec *, int *, int, int *,
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int *);
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extern const char *physical_LockedDevice(struct physical *);
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extern void physical_ChangedPid(struct physical *, pid_t);
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extern int physical_IsSync(struct physical *);
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extern const char *physical_GetDevice(struct physical *);
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extern void physical_SetDeviceList(struct physical *, int, const char *const *);
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extern void physical_SetDevice(struct physical *, const char *);
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extern ssize_t physical_Read(struct physical *, void *, size_t);
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extern ssize_t physical_Write(struct physical *, const void *, size_t);
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extern int physical_doUpdateSet(struct fdescriptor *, fd_set *, fd_set *,
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fd_set *, int *, int);
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extern int physical_IsSet(struct fdescriptor *, const fd_set *);
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extern void physical_DescriptorRead(struct fdescriptor *, struct bundle *,
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const fd_set *);
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extern void physical_Login(struct physical *, const char *);
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extern int physical_RemoveFromSet(struct physical *, fd_set *, fd_set *,
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fd_set *);
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extern int physical_SetMode(struct physical *, int);
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extern void physical_DeleteQueue(struct physical *);
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extern void physical_SetupStack(struct physical *, const char *, int);
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extern void physical_StopDeviceTimer(struct physical *);
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extern int physical_MaxDeviceSize(void);
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extern int physical_AwaitCarrier(struct physical *);
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extern void physical_SetDescriptor(struct physical *);
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