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/*
* Written by Eivind Eklund <eivind@yes.no>
* for Yes Interactive
*
* Copyright (C) 1998, Yes Interactive. All rights reserved.
*
* Redistribution and use in any form is permitted. Redistribution in
* source form should include the above copyright and this set of
* conditions, because large sections american law seems to have been
* created by a bunch of jerks on drugs that are now illegal, forcing
* me to include this copyright-stuff instead of placing this in the
* public domain. The name of of 'Yes Interactive' or 'Eivind Eklund'
* may not be used to endorse or promote products derived from this
* software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $FreeBSD$
*
*/
struct datalink;
struct bundle;
struct iovec;
struct physical;
struct bundle;
struct ccp;
struct cmdargs;
/* Device types (don't use zero, it'll be confused with NULL in physical2iov */
#define I4B_DEVICE 1
#define TTY_DEVICE 2
#define TCP_DEVICE 3
#define UDP_DEVICE 4
#define ETHER_DEVICE 5
#define EXEC_DEVICE 6
#define ATM_DEVICE 7
/* Returns from awaitcarrier() */
#define CARRIER_PENDING 1
#define CARRIER_OK 2
#define CARRIER_LOST 3
/* A cd ``necessity'' value */
#define CD_VARIABLE 0
#define CD_REQUIRED 1
#define CD_NOTREQUIRED 2
#define CD_DEFAULT 3
struct cd {
unsigned necessity : 2; /* A CD_ value */
int delay; /* Wait this many seconds after login script */
};
struct device {
int type;
const char *name;
u_short mtu;
struct cd cd;
int (*awaitcarrier)(struct physical *);
int (*removefromset)(struct physical *, fd_set *, fd_set *, fd_set *);
int (*raw)(struct physical *);
void (*offline)(struct physical *);
void (*cooked)(struct physical *);
void (*stoptimer)(struct physical *);
void (*destroy)(struct physical *);
ssize_t (*read)(struct physical *, void *, size_t);
ssize_t (*write)(struct physical *, const void *, size_t);
void (*device2iov)(struct device *, struct iovec *, int *, int, int *, int *);
int (*speed)(struct physical *);
const char *(*openinfo)(struct physical *);
};
struct physical {
struct link link;
struct fdescriptor desc;
int type; /* What sort of PHYS_* link are we ? */
struct async async; /* Our async state */
struct hdlc hdlc; /* Our hdlc state */
int fd; /* File descriptor for this device */
struct mbuf *out; /* mbuf that suffered a short write */
int connect_count;
struct datalink *dl; /* my owner */
struct {
u_char buf[MAX_MRU]; /* Our input data buffer */
size_t sz;
} input;
struct {
char full[DEVICE_LEN]; /* Our current device name */
char *base;
} name;
time_t Utmp; /* Are we in utmp ? */
pid_t session_owner; /* HUP this when closing the link */
struct device *handler; /* device specific handler */
struct {
unsigned rts_cts : 1; /* Is rts/cts enabled ? */
unsigned parity; /* What parity is enabled? (tty flags) */
unsigned speed; /* tty speed */
char devlist[LINE_LEN]; /* NUL separated list of devices */
int ndev; /* number of devices in list */
struct cd cd;
} cfg;
};
#define field2phys(fp, name) \
((struct physical *)((char *)fp - (int)(&((struct physical *)0)->name)))
#define link2physical(l) \
((l)->type == PHYSICAL_LINK ? field2phys(l, link) : NULL)
#define descriptor2physical(d) \
((d)->type == PHYSICAL_DESCRIPTOR ? field2phys(d, desc) : NULL)
#define PHYSICAL_NOFORCE 1
#define PHYSICAL_FORCE_ASYNC 2
#define PHYSICAL_FORCE_SYNC 3
#define PHYSICAL_FORCE_SYNCNOACF 4
extern struct physical *physical_Create(struct datalink *, int);
extern int physical_Open(struct physical *, struct bundle *);
extern int physical_Raw(struct physical *);
extern int physical_GetSpeed(struct physical *);
extern int physical_SetSpeed(struct physical *, int);
extern int physical_SetParity(struct physical *, const char *);
extern int physical_SetRtsCts(struct physical *, int);
extern void physical_SetSync(struct physical *);
extern int physical_ShowStatus(struct cmdargs const *);
extern void physical_Offline(struct physical *);
extern void physical_Close(struct physical *);
extern void physical_Destroy(struct physical *);
extern struct physical *iov2physical(struct datalink *, struct iovec *, int *,
int, int, int *, int *);
extern int physical2iov(struct physical *, struct iovec *, int *, int, int *,
int *);
extern const char *physical_LockedDevice(struct physical *);
extern void physical_ChangedPid(struct physical *, pid_t);
extern int physical_IsSync(struct physical *);
extern u_short physical_DeviceMTU(struct physical *);
extern const char *physical_GetDevice(struct physical *);
extern void physical_SetDeviceList(struct physical *, int, const char *const *);
extern void physical_SetDevice(struct physical *, const char *);
extern ssize_t physical_Read(struct physical *, void *, size_t);
extern ssize_t physical_Write(struct physical *, const void *, size_t);
extern int physical_doUpdateSet(struct fdescriptor *, fd_set *, fd_set *,
fd_set *, int *, int);
extern int physical_IsSet(struct fdescriptor *, const fd_set *);
extern void physical_DescriptorRead(struct fdescriptor *, struct bundle *,
const fd_set *);
extern void physical_Login(struct physical *, const char *);
extern int physical_RemoveFromSet(struct physical *, fd_set *, fd_set *,
fd_set *);
extern int physical_SetMode(struct physical *, int);
extern void physical_DeleteQueue(struct physical *);
extern void physical_SetupStack(struct physical *, const char *, int);
extern void physical_StopDeviceTimer(struct physical *);
extern int physical_MaxDeviceSize(void);
extern int physical_AwaitCarrier(struct physical *);
extern void physical_SetDescriptor(struct physical *);
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