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freebsd-dev/usr.sbin/ppp/physical.h

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Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
/*
* 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.
*
Only call isatty() when we open our descriptor, and remember the answer. If we later get a descriptor exception from select(), we know that it's a tty (isatty() returns 0 after the exception on a tty) and remember to call modem_LogicalClose(). The upshot of it all is that descriptor exceptions dont leave the tty locked any more.
1999-01-10 01:26:30 +00:00
* $Id: physical.h,v 1.4 1998/08/25 17:48:43 brian Exp $
Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
*
*/
o Move alias function pointers into loadalias.c o Move Var*Version into command.c o Remove struct pppVars (and there was much rejoicing) ! o Forward-decl some structs in .h files to avoid include ordering requirements and remove a few more redundant #includes.
1998-04-07 00:54:26 +00:00
struct bundle;
Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
struct physical {
Create `struct link' - the logical link from which `struct physical' (and the future `struct logical') are derived.
1998-01-30 19:46:07 +00:00
struct link link;
o Introduce struct descriptor. This will ultimately be a member of a list of descriptors and their handler functions on which we need to select() in the main loop. o Make struct physical into a `sort' of struct descriptor.
1998-02-09 19:21:11 +00:00
struct descriptor desc;
Cosmetic: Make our external function names consistent.
1998-05-01 19:26:12 +00:00
int type; /* What sort of PHYS_* link are we ? */
Create `struct async' and make it part of `struct physical'. This structure contains the asynchronous state of the physical link. Unfortunately, just about every .h file is included in every .c file now. Fixing this can be one of the last jobs.
1998-02-02 19:33:40 +00:00
struct async async; /* Our async state */
o Create `struct hdlc' - a part of struct physical. o Move our LCP report timer into struct hdlc - it's really a hdlc timer (fcs errors etc). o Make `show hdlc' require context and make the output more friendly. o Remove all non-const globals from hdlc.c o Output peer-rejected protocols by name - not just ones that we reject.
1998-02-18 19:35:59 +00:00
struct hdlc hdlc; /* Our hdlc state */
Create `struct link' - the logical link from which `struct physical' (and the future `struct logical') are derived.
1998-01-30 19:46:07 +00:00
int fd; /* File descriptor for this device */
int mbits; /* Current DCD status */
Only call isatty() when we open our descriptor, and remember the answer. If we later get a descriptor exception from select(), we know that it's a tty (isatty() returns 0 after the exception on a tty) and remember to call modem_LogicalClose(). The upshot of it all is that descriptor exceptions dont leave the tty locked any more.
1999-01-10 01:26:30 +00:00
unsigned isatty : 1;
Move `Utmp' into struct physical. We can be logged in once for every -direct physical connection.
1998-03-10 03:06:07 +00:00
struct mbuf *out; /* mbuf that suffered a short write */
Create `struct link' - the logical link from which `struct physical' (and the future `struct logical') are derived.
1998-01-30 19:46:07 +00:00
int connect_count;
"dial" now may optionally have context. Tidy up some LcpInfo uses.
1998-03-13 00:44:51 +00:00
struct datalink *dl; /* my owner */
Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
o Move all device names into struct physical. o Use the correct device name in -direct mode. o Use a default list of "cuaa1, cuaa0" rather than just cuaa1 and allow embedded spaces as separators.
1998-03-06 00:34:47 +00:00
struct {
char full[40];
char *base;
} name;
Move `Utmp' into struct physical. We can be logged in once for every -direct physical connection.
1998-03-10 03:06:07 +00:00
unsigned Utmp : 1; /* Are we in utmp ? */
o If there's a session leader left running for a descriptor that we're now closing, manually HUP that session leader so that the tty is fully released. o Always restart our carrier detect timer in the receiving process if it was running in the sending process (as we now *always* pass the descriptor). o Tweak argv when we go into pause() mode to keep our session so that ps can see what's going on (without checking for a `pause' state in `ps -l').
1998-05-29 18:33:10 +00:00
pid_t session_owner; /* HUP this when closing the link */
Move `Utmp' into struct physical. We can be logged in once for every -direct physical connection.
1998-03-10 03:06:07 +00:00
Create `struct link' - the logical link from which `struct physical' (and the future `struct logical') are derived.
1998-01-30 19:46:07 +00:00
/* XXX-ML Most of the below is device specific, and probably do not
Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
belong in the generic physical struct. It comes from modem.c. */
Cosmetic: Group configuration items in struct physical.
1998-02-17 19:29:03 +00:00
struct {
unsigned rts_cts : 1; /* Is rts/cts enabled? */
o Move alias function pointers into loadalias.c o Move Var*Version into command.c o Remove struct pppVars (and there was much rejoicing) ! o Forward-decl some structs in .h files to avoid include ordering requirements and remove a few more redundant #includes.
1998-04-07 00:54:26 +00:00
unsigned parity; /* What parity is enabled? (TTY flags) */
unsigned speed; /* Modem speed */
o Move all device names into struct physical. o Use the correct device name in -direct mode. o Use a default list of "cuaa1, cuaa0" rather than just cuaa1 and allow embedded spaces as separators.
1998-03-06 00:34:47 +00:00
char devlist[LINE_LEN]; /* Comma-separated list of devices */
Cosmetic: Group configuration items in struct physical.
1998-02-17 19:29:03 +00:00
} cfg;
Create `struct link' - the logical link from which `struct physical' (and the future `struct logical') are derived.
1998-01-30 19:46:07 +00:00
struct termios ios; /* To be able to reset from raw mode */
Do away with the static struct timeoutArg. Move the struct pppTimer from struct link to struct physical for doing carrier checking.
1998-04-20 00:20:41 +00:00
struct pppTimer Timer; /* CD checks */
Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
};
o Introduce struct descriptor. This will ultimately be a member of a list of descriptors and their handler functions on which we need to select() in the main loop. o Make struct physical into a `sort' of struct descriptor.
1998-02-09 19:21:11 +00:00
#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)
Create `struct link' - the logical link from which `struct physical' (and the future `struct logical') are derived.
1998-01-30 19:46:07 +00:00
Cosmetic: Make our external function names consistent.
1998-05-01 19:26:12 +00:00
extern int physical_GetFD(struct physical *);
extern int physical_IsSync(struct physical *);
extern const char *physical_GetDevice(struct physical *);
extern void physical_SetDeviceList(struct physical *, int, const char *const *);
extern int physical_SetSpeed(struct physical *, int);
Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
Cosmetic: Make our external function names consistent.
1998-05-01 19:26:12 +00:00
/*
* XXX-ML I'm not certain this is the right way to handle this, but we
* can solve that later.
*/
extern void physical_SetSync(struct physical *);
Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
Cosmetic: Make our external function names consistent.
1998-05-01 19:26:12 +00:00
/*
* Can this be set? (Might not be a relevant attribute for this
* device, for instance)
*/
extern int physical_SetRtsCts(struct physical *, int);
extern ssize_t physical_Read(struct physical *, void *, size_t);
extern ssize_t physical_Write(struct physical *, const void *, size_t);
extern int physical_UpdateSet(struct descriptor *, fd_set *, fd_set *,
fd_set *, int *, int);
extern int physical_IsSet(struct descriptor *, const fd_set *);
extern void physical_Login(struct physical *, const char *);
extern void physical_Logout(struct physical *);
o Call bundle_LinkClosed() when transferring a datalink so that the bundle has the opportunity to go PHASE_DEAD and cleanup the interface (if it's the last link). o Regnerate our phys_type value when we transfer the link. o Always clean up the interface when destroying our bundle in case we're abending. o Always clean up our interface when the last link is gone rather than delaying things 'till exit time in the -direct case (the interface is useless anyway). Do this *after* slamming down our NCPs (if they're still around). o Our MP server descriptor now clears the relevent device descriptor from our descriptor [fd]sets when a datalink is on death-row (to be transferred to another running ppp), thus avoiding the possibility of passing a bum descriptor to select() and having ppp abend. o Handle the MP socket descriptor functions from within the bundle descriptor functions. Now we ensure that the MP socket descriptor functions see the descriptor sets *after* they've been seen by our datalinks. o Add/fix a few more comments.
1998-05-15 18:21:45 +00:00
extern int physical_RemoveFromSet(struct physical *, fd_set *, fd_set *,
fd_set *);
o Add the `set mode' command for change a links current mode. It is not possible to switch to or from dedicated or direct mode, but all other combinations are ok (eg. -auto -> -ddial). o Cope with the fact that commands with optional context may not be able to obtain a link with command_ChooseLink() (if all links have been deleted for example). o Allow `clone'ing in non-multilink mode. We may for example want to configure two links in unilink mode and dial them both, using the one that comes up first. It's also possible to rename ``deflink'' by cloning it, deleting the original, then setting the mode of the new link.
1998-05-15 23:58:30 +00:00
extern int physical_SetMode(struct physical *, int);
If we've got a full output buffer queue and cannot send anything for two mintues (see ``set choked'' and ``show bundle''), nuke the ip, mp and link level buffer queues. This should fix problems where ``ppp -auto'' seems to stop responding after failing to connect to the peer a few times.
1998-08-25 17:48:43 +00:00
extern void physical_DeleteQueue(struct physical *);
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