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* explicit_bzero for clearing stack variables.tedu2014-05-301-4/+4
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* Handle threaded processes correctly when processing kerninfo status requestsguenther2014-05-251-90/+107
| | | | | | (aka ^T), summing CPU and check runnable/running status of all threads. ok deraadt@
* Move p_sigacts from struct proc to struct process.guenther2014-03-221-4/+4
| | | | testing help mpi@
* Restore TIOCGSID ioctl that was removed along with the 4.3BSD tty(4)millert2013-12-161-1/+6
| | | | | compat. This will be used to implement tcgetsid() in the future. OK kettenis@ guenther@
* Remove the 4.3BSD tty(4) compatibility shims. RIP. ok millert@naddy2013-12-131-18/+1
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* poll(2) on a closed tty should return POLLIN|POLLHUP in reventsmillert2013-10-111-2/+5
| | | | | | | when events is set to POLLIN and POLLHUP when events is set to POLLOUT. In the pty case we need to be careful to only treat the pty as closed if carrier is on. This fixes a hang on close problem seen with ssh and xterm.
* Back out POLLHUP change until a problem with xterm hanging on closemillert2013-10-061-5/+2
| | | | is fixed.
* poll(2) on a closed tty should return POLLIN|POLLHUP in reventsmillert2013-10-041-2/+5
| | | | | when events is set to POLLIN and POLLHUP when events is set to POLLOUT. OK deraadt@
* Switch from timeval to timespec introduced format error; fix by preppingguenther2013-06-101-4/+5
| | | | | | for big time_t and casting to long long ok deraadt@
* Convert some internal APIs to use timespecs instead of timevalsguenther2013-06-031-11/+11
| | | | ok matthew@ deraadt@
* When a ucom(4) is removed, it frees the tty with ttyfree(). However ifnicm2013-04-241-7/+46
| | | | | | | | | | | anyone is waiting with kqueue their knotes may still have a reference to the tty and later try to use it in the filt_tty* functions. To avoid this, walk the knotes in ttyfree(), remove them from the tty's list and invalidate them by setting kn_hook to NODEV. The filter functions can then check for this and safely ignore the knotes. ok tedu matthieu
* Ensure the tty hiwat is less than the size of the ring buffer (sincederaadt2013-01-171-4/+4
| | | | | | | we do not grow space like clist chains). Clamp it a bit more precisely, ensuring a bit of space for kernel ^T handling and such. It was definately wrong, and we can tune this if required later. ok kettenis
* Reset t_column to 0 when initializing a tty.matthew2012-04-221-1/+2
| | | | ok deraadt@
* Make rusage totals, itimers, and profile settings per-process insteadguenther2012-03-231-2/+2
| | | | | | | of per-rthread. Handling of per-thread tick and runtime counters inspired by how FreeBSD does it. ok kettenis@
* Recommit the reverted sigacts change now that the NFS use-after-freeguenther2011-07-051-4/+4
| | | | | | | | problem has been tracked down. This fixes the sharing of the signal handling state: shared bits go in sigacts, per-rthread bits goes in struct proc. ok deraadt@
* kqueue attach functions should return an errno or 0, not a plain 1. Fixnicm2011-07-021-2/+2
| | | | | | the obvious cases to return EINVAL and ENXIO. ok tedu deraadt
* Revert the sigacts diff: NFS can apparently retain pointers to processesguenther2011-04-181-4/+4
| | | | | | until they're zombies and then send them signals (for intr mounts). Until that is untangled, the sigacts change is unsafe. sthen@ was the victim for this one
* Correct the sharing of the signal handling state: stuff that shouldguenther2011-04-151-4/+4
| | | | | | | | | | | | be shared (p_sigignore, p_sigcatch, P_NOCLDSTOP, P_NOCLDWAIT) moves to struct sigacts, wihle stuff that should be per rthread (ps_oldmask, SAS_OLDMASK, ps_sigstk) moves to struct proc. Treat the coredumping state bits (ps_sig, ps_code, ps_type, ps_sigval) as per-rthread until our locking around coredumping is better. Oh, and remove the old SunOS-compat ps_usertramp member. "I like the sound of this" tedu@
* Move PPWAIT flag from struct proc to process, so that rthreads inguenther2011-04-031-4/+4
| | | | | | | | | a vforked child behave correctly. Have the parent in a vfork() wait on a (different) flag in *its* process instead of the child to prevent a possible use-after-free. When ktracing the child return from a fork, call it rfork if an rthread was created. ok blambert@
* Correct the links between threads, processes, pgrps, and sessions,guenther2010-07-261-30/+35
| | | | | | | | | so that the process-level stuff is to/from struct process and not struct proc. This fixes a bunch of problem cases in rthreads. Based on earlier work by blambert and myself, but mostly written at c2k10. Tested by many: deraadt, sthen, krw, ray, and in snapshots
* Move common code for waking up writers on a tty into a function.nicm2010-07-021-1/+17
| | | | ok deraadt matthew millert
* Allow tty drivers to request larger buffers at attach time using aderaadt2010-06-281-10/+13
| | | | | | | | max-baud-rate hint. Adjust TTYHOG (the nearly full logic) to this new situation. The larger buffers are required by the very high speed KDDI devices in Japan (CF com, or USB ucom) so those are the only two drivers which currently ask for a larger buffer size. ok yasuoka miod
* Some of the line disciplines want to check for suser. Better to pass themtedu2010-04-121-6/+6
| | | | a process instead of using curproc. ok deraadt
* typo in documentation; missing full stop.sobrado2009-11-271-2/+2
| | | | from Dawe.
* Every selwakeup() should have a matching KNOTE() (even if kqueue isn'tnicm2009-11-091-3/+1
| | | | | | | | | | supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and remove it from any occurences where both are used, except one for kqueue itself and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag). Based on a diff from tedu. ok deraadt
* Add missing KNOTE() calls after selwakeup() in ptcread() (to wake up writersnicm2009-10-301-1/+2
| | | | | | after the master side of the pty has finished reading) and in ttyflush(). ok tedu millert
* For the TIOCSET* ioctls, validate that the tty speeds are positive (sincederaadt2009-10-281-1/+8
| | | | | they are signed int) ok miod guenther
* clalloc() can't fail, so there's no need to handle failure cases.blambert2009-07-191-12/+11
| | | | | | | | Change to void function. Also, no need to have global tty stats pointer, so just return it from clalloc, as the caller frees it immediately anyway. ok miod@
* EVFILT_WRITE filters should return the amount of space remaining in thekettenis2008-12-241-3/+7
| | | | | | | | | write buffer, not the amount of space used. It is debatable wether the size of the write buffer is set by the size of the buffer or the high water mark. For now, go with the former since that seems to be more consistent with what the pipe and socet code does. It is also what NetBSD does. ok deraadt@
* for ^T support, grab all the information from the process before goingderaadt2008-11-111-17/+17
| | | | into a potentially sleeping function... ok tedu.
* Fix integer truncation in ttwrite(). ok deraadt, miod.stefan2008-07-281-3/+4
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* tputchar() can put characters on the tty output queue if clocal is set,deraadt2008-05-231-3/+3
| | | | | fixing (status) ^T support on some ttys without carrier ok pyr
* scrub local stack-based buffers in the tty subsystem. tested by a lot ofderaadt2008-04-101-4/+12
| | | | | developers. if you notice tty weirdnesses in the next few months, talk to me
* MALLOC/FREE -> malloc/freechl2007-10-291-2/+2
| | | | | | replace an hard coded value with M_WAITOK ok krw@
* Use M_ZERO in a few more places to shave bytes from the kernel.art2007-09-071-3/+3
| | | | eyeballed and ok dlg@
* Since p_flag is often manipulated in interrupts and without biglockart2007-03-151-2/+2
| | | | | | | | | | | | it's a good idea to use atomic.h operations on it. This mechanic change updates all bit operations on p_flag to atomic_{set,clear}bits_int. Only exception is that P_OWEUPC is set by MI code before calling need_proftick and it's automatically cleared by ADDUPC. There's no reason for MD handling of that flag since everyone handles it the same way. kettenis@ ok
* avoid missing events for timestamping (dcd change at same time as cts);deraadt2006-06-171-8/+8
| | | | mrd@alkemio.org
* create a (very simple) method for timestamping CTS & DCD events on ttys,deraadt2006-04-271-1/+41
| | | | | using ioctl TIOCSTSTAMP & TIOCGTSTAMP. to be used later for gps monitoring type things; ok kettenis miod
* ansi/deregister. No binary change.jsg2005-12-211-122/+55
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* Use list and queue macros where applicable to make the code easier to read;miod2004-12-261-3/+3
| | | | no change in compiler assembly output.
* handle SONPROC; ok aaron, deraadt, krwmarkus2004-11-181-2/+3
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* constify speedtabs and make ttspeedtab() take a const struct speedtab *mickey2004-09-191-2/+2
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* debranch SMP, have funniklas2004-06-131-2/+3
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* check for CLOCAL flag in right variable; from sq@oganer.netderaadt2004-03-191-2/+2
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* Dynamically allocate space for ptys; adapted from NetBSD by beck@millert2004-02-101-1/+7
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* Merge tty_attach() in ttymalloc() and tty_detach() in ttyfree(). The need formiod2003-10-031-44/+17
| | | | | | | | | separate tty registering is gone now that sparc has switched to wscons, and this makes the code less error-prone. Also, remove tests for ttymalloc() failure, since it uses M_WAITOK. ok millert@ deraadt@, tested by various people as well besides me...
* Replace select backends with poll backends. selscan() and pollscan()millert2003-09-231-21/+22
| | | | | | | now call the poll backend. With this change we implement greater poll(2) functionality instead of emulating it via the select backend. Adapted from NetBSD and including some changes from FreeBSD. Tested by many, deraadt@ OK
* knfderaadt2003-08-231-3/+3
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* change arguments to suser. suser now takes the process, and a flagstedu2003-08-151-2/+2
| | | | | | | | | argument. old cred only calls user suser_ucred. this will allow future work to more flexibly implement the idea of a root process. looks like something i saw in freebsd, but a little different. use of suser_ucred vs suser in file system code should be looked at again, for the moment semantics remain unchanged. review and input from art@ testing and further review miod@
* Remove the advertising clause in the UCB license which Berkeleymillert2003-06-021-6/+2
| | | | rescinded 22 July 1999. Proofed by myself and Theo.
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