Commit Graph

112 Commits

Author SHA1 Message Date
drochner 6d1cbe3695 Make ioctl(FIONREAD) on the master side of a pty return the amount of
data which can be read, as expected. Before, the call fell through a
"case" statement and was forwarded to the slave side, returning the
data which can be read by the slave.
The new behaviour also matches Linux and OSF/1.
2008-09-03 16:47:34 +00:00
ad 45850c3df9 PPWAIT need only be locked by proc_lock, so move it to proc::p_lflag. 2008-06-16 10:15:57 +00:00
ad 5e4b324300 Properly fix the "hanging in tty" bug that was worked around with cv_wakeup()
some time again.
2008-05-25 19:22:21 +00:00
ad 664f91e474 Improve ^T / SIGINFO handling:
- Restore code removed during LWPification.
- Don't touch proc state from a hardware interrupt handler.
- Fix the locking.
2008-04-20 19:22:44 +00:00
rmind c6186face4 Welcome to 4.99.55:
- Add a lot of missing selinit() and seldestroy() calls.

- Merge selwakeup() and selnotify() calls into a single selnotify().

- Add an additional 'events' argument to selnotify() call.  It will
  indicate which event (POLL_IN, POLL_OUT, etc) happen.  If unknown,
  zero may be used.

Note: please pass appropriate value of 'events' where possible.
Proposed on: <tech-kern>
2008-03-01 14:16:49 +00:00
ad f38bbfb0c5 Pull up 1.104.2.3:
Avoid mutex recursion with kqueue. Reported by martin@.
2007-12-30 22:03:01 +00:00
ad 4caeb79017 Restore seperate condvars for clist i/o and clist control activity.
Fixes lockups with concurrent output to ttys. kern/37455
2007-12-22 02:21:29 +00:00
pooka 4e38160d4d Do not "return 1" from kqfilter for errors. That value is passed
directly to the userland caller and results in a mysterious EPERM.
Instead, return EINVAL or something else sensible depending on the
case.
2007-12-05 17:19:46 +00:00
ad 3f269d8907 Tidy up the locking a bit. 2007-11-19 19:47:00 +00:00
ad dc26833bb6 - Factor out too many copies of the same bit of tty code.
- Fix another tty signalling/wakeup problem.
2007-11-19 18:51:36 +00:00
ad d37935697b Merge tty changes from the vmlocking branch. 2007-11-07 15:56:11 +00:00
pooka 052ed1b786 wrap calls to pgsignal() in proclist_mutex 2007-04-17 19:52:56 +00:00
ad 194273271b Use mutexes/condvars. 2007-03-12 21:33:07 +00:00
christos 53524e44ef Kill caddr_t; there will be some MI fallout, but it will be fixed shortly. 2007-03-04 05:59:00 +00:00
ad b07ec3fc38 Merge newlock2 to head. 2007-02-09 21:55:00 +00:00
elad b5a8324144 Use KAUTH_DEVICE_TTY_OPEN instead of comparing euid to zero. 2006-12-22 21:56:19 +00:00
yamt 1a7bc55dcc remove some __unused from function parameters. 2006-11-01 10:17:58 +00:00
christos 4d595fd7b1 - sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386
2006-10-12 01:30:41 +00:00
xtraeme 75d2d9715c Remove duplicated includes, from Jeff Ito -> PR kern/26113. Thanks. 2006-09-23 15:36:12 +00:00
christos 740d87bac5 adjust resid in one more place. 2006-08-03 22:06:55 +00:00
christos 75300d10c2 don't drop characters that we've copied in when we block. 2006-08-03 22:03:18 +00:00
ad f474dceb13 Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
christos 95e13e63bd Introduce SA_NOKERNINFO, a flag for SIGINFO not to print kernel messages. 2006-06-03 18:18:26 +00:00
elad 215bd95ba4 integrate kauth. 2006-05-14 21:15:11 +00:00
christos 5cf38f035b Strip the chrooted portion of the path from the reported pty path. Reported
and tested by Lasse Kliemann. Thanks!
2006-04-13 17:44:24 +00:00
christos 81b9ed737b Move ISSET/SET/CLR macros to sys/types.h 2006-03-05 16:57:16 +00:00
christos 95e1ffb156 merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
ws 9d78e0cf36 PR-30566: Poll must not return <sys/errno.h> values.
Start with those places I can easily test.
2005-06-21 14:01:11 +00:00
christos efb6943313 - add const.
- remove unnecessary casts.
- add __UNCONST casts and mark them with XXXUNCONST as necessary.
2005-05-29 22:24:14 +00:00
perry da8abec863 nuke trailing whitespace 2005-02-26 21:34:55 +00:00
christos dfa8d84485 PR/25749: Peter Postma: Missing splx() in kernel. 2004-11-13 19:16:18 +00:00
christos f03f3b9452 Split the ptm driver out of tty_pty.c into its own file. From that split
the code that `knows' about /dev/[pt]tyXX names (the BSD ptys) into a separate
file. Make an interface to be used by the tty creating provider. The code
to enable old PTY searching via ptm is enabled via COMPAT_BSDPTY, and it
is turned on by default on all kernels that have compatibility options enabled.
2004-11-10 17:29:54 +00:00
christos c22e4ed8cd ptm is now mandatory, depends on pty, and can be disabled with -DNO_DEV_PTM 2004-06-18 15:02:29 +00:00
lha a9970d44c9 Return directly when pty_alloc_master failes in ptmioctl,
bug-report on current users from Denis Lagno  dlagno at smtp dot ru.
Make debug message in pty_alloc_master to match the code.
2004-06-05 11:23:15 +00:00
christos 3d4ca09443 turn off debugging. 2004-05-27 03:56:49 +00:00
christos 917cdbbd9e Unix 98 pty multiplexor device; original code from OpenBSD. 2004-05-27 02:56:38 +00:00
junyoung a222c81884 Nuke __P(). 2004-03-23 13:22:03 +00:00
dbj 7a30c4a987 add more spltty() calls around TTY_LOCK/UNLOCK where needed 2004-03-09 05:30:24 +00:00
dbj f8e0478668 add some spltty() calls around TTY_LOCK() calls that didn't have them 2004-03-05 07:27:22 +00:00
jdolecek 4d49760268 use the new NOTE_SUBMIT to flag if the locking is necessary
for EVFILT_READ/EVFILT_WRITE knotes

fixes PR kern/23915 by Martin Husemann (pipes), and similar locking problem
in tty code
2004-02-22 17:51:25 +00:00
agc aad01611e7 Move UCB-licensed code from 4-clause to 3-clause licence.
Patches provided by Joel Baker in PR 22364, verified by myself.
2003-08-07 16:26:28 +00:00
dsl cfb2dd92f0 Fix (and simplify) interaction between check_pty() and pty_maxptys().
Lock setting/clearing of tp->t_oproc to guarantee concurrent opens can't
both suceed and that code in tty.c can't get a NULL t_oproc if the value
is re-read after being checked.
There are still MP issues with pt_flags, pt_send and pt_unctl.
Maybe problems that require TTY_LOCK() to be taken before calling std tty
functions.
2003-07-23 13:10:28 +00:00
fvdl d5aece61d6 Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.
2003-06-29 22:28:00 +00:00
darrenr 960df3c8d1 Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records.  The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V
2003-06-28 14:20:43 +00:00
pk bb52ffdf64 Make the tty subsystem MP-safe..
..as far as mere mortals are able to, since this code illustrates the finest
points that Italian haute cuisine has to offer.
2003-02-05 15:49:02 +00:00
simonb 1354fecf22 b_to_q() and q_to_b() take a "u_char *" argument, so use a u_char array
in one place, and don't cast a "u_char *" to a "char *" in the q_to_b()
call(!) in another.
2003-01-19 23:11:46 +00:00
christos e22906f6d0 si_ -> sel_ to avoid conflicts with siginfo. 2002-11-26 18:44:34 +00:00
jdolecek e0cc03a09b merge kqueue branch into -current
kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
2002-10-23 09:10:23 +00:00
jdolecek c0f46c2a40 check_pty(): make sure to zero the newly allocated pt_softc structure 2002-09-22 18:13:38 +00:00
gehenna 77a6b82b27 Merge the gehenna-devsw branch into the trunk.
This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

	device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
  by using this grammer.

- Added the new naming convention.
  The name of the device switch must be <prefix>_[bc]devsw for auto-generation
  of device switch tables.

- The backward compatibility of loading block/character device
  switch by LKM framework is broken. This is necessary to convert
  from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
  We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
  the LKM framework will refer it to assign device major number dynamically.
2002-09-06 13:18:43 +00:00