Commit Graph

18 Commits

Author SHA1 Message Date
Bruce Evans
5f679211e3 Fix slioctl(). It has to return -1 for ioctls that it doesn't know about
so that these ioctls can be handled by the calling layer(s).

Clean up the recently added code:
- include the appropriate header to declare an implicitly declared function.
- declare timeout functions correctly and remove numerous bogus casts that
  hid (but didn't fix) their incorrectness.
1995-04-02 00:11:48 +00:00
Andrey A. Chernov
8a9f513775 slopen() never sets t_line to SLIPDISC, but uses slip-specific queue allocation 1995-04-01 22:11:10 +00:00
Andrey A. Chernov
dfd88e5a00 Fix typing error sneaked somehow in prev. commit 1995-03-31 11:01:29 +00:00
Andrey A. Chernov
ca9301398c This sl enhancement helps to keep serial line (modem) connection alive.
It is common case when modem hangs with carier on but don't
receive anything from another side.
This thing commonly healed with hangup and redialing.
Enhancements below allows to determine when such action
is needed and inform attach program with SIGURG signal.
There two ioctls set: outfill and keepalive, used from both
sides of connection. Outfill repeatedly sends FRAME_END with
specified timeout (i.e. 40 seconds). It is needed to get input on
other side even if no user activity on slip line currently.
Keepalive checks FRAME_ENDs from other side, and if no one
got in specified timeout (i.e. 60 seconds, max modem retrain time),
send SIGURG to attach program.
I plan to add code to slattach to handle this thing too.

Reviewed by: wollman
1995-03-30 20:43:32 +00:00
Garrett Wollman
69244b69db Support for pseudo-device LKMs. Note that this is restricted to only
one pseudo per module (a restriction which will eventually be lifted) and
isthus not in its final form.
1995-03-20 19:20:44 +00:00
Bruce Evans
b5e8ce9f12 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) and most of the warnings from
`gcc -Wnested-externs'.  Fix all the bugs found.  There were no serious
ones.
1995-03-16 18:17:34 +00:00
Andrey A. Chernov
a3f80a9b22 *close: just purge tty queues if we can't drain them 1995-02-13 02:09:14 +00:00
Bruce Evans
7b9754ed1f Fix previous change: don't attempt to reserve cblocks if the tty is null. 1994-11-27 15:29:57 +00:00
Bruce Evans
d1a795a280 Fix cblock starvation bugs by reserving enough cblocks for minimal
operation of each clist.  Limit the growth of each clist.  Clists
can only grow larger than the reserved minimum if there are free
cblocks in a shared pool.  The size of this pool is now fixed
(this could be improved).  The reserved and maximum sizes are more
carefully allocated for slip and ppp, depending on the mtu.  A maximum
MTU of 16384 is now enforced for ppp.
1994-11-26 19:24:13 +00:00
Poul-Henning Kamp
9448326fcf Mostly Cosmetics. Some of the procedures in if_sl.c was void, but should
be int.  I made them int, and let them return 0.  Will have to find out
what the return-val is used for.
1994-10-08 01:40:23 +00:00
Garrett Wollman
5f62e00893 Install line discipline the new way. 1994-10-05 21:22:45 +00:00
David Greenman
fe19c3238d Made SLIP MTU configurable via ifconfig(8). Changed default MTU to 552
as it is a better choice in a day with BTLZ compression modems.
1994-09-13 16:05:50 +00:00
David Greenman
5bdea7c87f Re-enabled check for low clist condition. 1994-09-12 11:49:49 +00:00
David Greenman
ce1f38c654 Made SLMTU kernel config'able. 1994-09-09 12:58:10 +00:00
Garrett Wollman
f23b4c91c4 Fix up some sloppy coding practices:
- Delete redundant declarations.
- Add -Wredundant-declarations to Makefile.i386 so they don't come back.
- Delete sloppy COMMON-style declarations of uninitialized data in
  header files.
- Add a few prototypes.
- Clean up warnings resulting from the above.

NB: ioconf.c will still generate a redundant-declaration warning, which
is unavoidable unless somebody volunteers to make `config' smarter.
1994-08-18 22:36:09 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00