Commit Graph

444 Commits

Author SHA1 Message Date
jhb
a33939f7ae Protect access to p_stat with sched_lock. 2000-12-01 06:34:19 +00:00
marcel
75c76bdc6b Don't use p->p_sigstk.ss_flags to keep state of whether the
process is on the alternate stack or not. For compatibility
with sigstack(2) state is being updated if such is needed.

We now determine whether the process is on the alternate
stack by looking at its stack pointer. This allows a process
to siglongjmp from a signal handler on the alternate stack
to the place of the sigsetjmp on the normal stack. When
maintaining state, this would have invalidated the state
information and causing a subsequent signal to be delivered
on the normal stack instead of the alternate stack.

PR: 22286
2000-11-30 05:23:49 +00:00
jake
9326f655fc Use callout_reset instead of timeout(9). Most callouts are statically
allocated, 2 have been added to struct proc for setitimer and sleep.

Reviewed by:	jhb, jlemon
2000-11-27 22:52:31 +00:00
des
20635f6047 Add bogomips to cpuinfo (set it equal to the CPU frequency, which is bogus
but not more so than Linux' definition).
This should get the IBM JDK 1.3 working again.

Prompted by:	sobomax
2000-11-27 11:10:03 +00:00
dillon
afce602818 Forgot to patch this file in file descriptor race fix commit
Submitted-by: "Danny J. Zerkel" <dzerkel@columbus.rr.com>
2000-11-23 11:05:14 +00:00
gallatin
0ee48b4aca Use the linux_connect() on alpha rather than passing directly through
to our native connect().  This is required to deal with the differences
in the way linux handles connects on non-blocking sockets.

This gets the private beta of the Compaq Linux/alpha JDK working
on FreeBSD/alpha

Approved by: marcel
2000-11-16 01:05:53 +00:00
marcel
130199c770 Fix F_SETOWN on pipes. Linux returns EINVAL while we send a SIGIO
signal. There's at least 1 program that is known to break.
Submitted patch has been edited to match current code.

MFC: yes
Submitted by: bde
2000-11-13 04:08:56 +00:00
marcel
c3aea64316 Revert auto-generation. The Alpha port is broken.
Syncing with it is wrong.
2000-11-10 21:30:19 +00:00
marcel
1a7266b24d Make MINSIGSTKSZ machine dependent, and have the sigaltstack
syscall compare against a variable sv_minsigstksz in struct
sysentvec as to properly take the size of the machine- and
ABI dependent struct sigframe into account.

The SVR4 and iBCS2 modules continue to have a minsigstksz of
8192 to preserve behavior. The real values (if different) are
not known at this time. Other ABI modules use the real
values.

The native MINSIGSTKSZ is now defined as follows:

Arch		MINSIGSTKSZ
----		-----------
alpha		    4096
i386		    2048
ia64		   12288

Reviewed by: mjacob
Suggested by: bde
2000-11-09 08:25:48 +00:00
marcel
7980b37e09 Sync with Alpha:
Do not use sysent.c, proto.h and syscall.h in source tree;
use auto-generated versions.
2000-11-09 07:27:55 +00:00
des
eed51b49c8 Check that p->p_pptr is not NULL - kernel processes have no parents! 2000-11-06 03:23:56 +00:00
marcel
228f80f471 Fix getdents syscall.
The offset field in struct dirent was set to the offset of
the next dirent in rev 1.36. The offset was calculated from
the current offset and the record length. This offset does
not necessarily match the real offset when we are using
cookies. Therefore, also use the cookies to set the offset
field in struct dirent if we're using cookies to iterate
through the dirents.
2000-11-05 07:31:17 +00:00
gallatin
47e0f18a13 zap a stray include that snuck in with rev 1.56
Submitted by:	Clive Lin <clive@CirX.ORG>
2000-11-02 18:51:32 +00:00
gallatin
a443a14ba4 fix a comment that was inadvertantly changed by a cvs merge
pointed out by: obrien
2000-11-02 15:04:19 +00:00
marcel
a472162cee Fix linux_ustat syscall. We only have cdevs now, so looking
for a block device isn't that useful anymore.

Reported by: Wesley Morgan <morganw@chemicals.tacorp.com>
Submitted by: gallatin
Acknowledged by: phk
2000-11-02 06:08:26 +00:00
gallatin
cf4f3816fd Support for the linux ipc syscalls on the alpha, where each one has
its own syscall rather than going through a demux function like
linux_ipc() on i386
2000-11-01 23:17:31 +00:00
gallatin
1f8368b377 fix linux_termio and linux_termios structs on alpha. alpha differences
are in the termios struct (probably because linux wants to be compatible
with the osf/1 termios struct), not the termio struct.
2000-11-01 22:36:41 +00:00
obrien
c4a9f49ba8 The MI/MD split wasn't perfect and the MI files need hacks for the
AlphaLinux compat bits.  This will be better cleaned up soon.

Agreed to what ever was necessary by:	marcel
2000-11-01 19:48:35 +00:00
obrien
66095251ce Make the target a little bit more generic. 2000-11-01 08:47:34 +00:00
des
6f876111db Bring cpuinfo closer to what it looks like in Linux 2.2.
Submitted by:	R Bradford Jones <brad@kazrak.com>
2000-10-25 22:38:23 +00:00
des
6928b6c124 Add /proc/<pid>/status and /proc/<pid>/stat (the latter being mostly
zeroes for the time being).

Prompted by:	Nathan Boeger <nathan@khmere.com>
2000-10-25 22:12:59 +00:00
non
8e8d8815fa Add PC-Card/ISA SCSI host adpater drivers from NetBSD/pc98
(a NetBSD port for NEC PC-98x1 machines). They are ncv for NCR 53C500,
nsp for Workbit Ninja SCSI-3, and stg for TMC 18C30 and 18C50.

I thank NetBSD/pc98 and bsd-nomads people.

Obtained from:	NetBSD/pc98
2000-10-23 12:55:51 +00:00
gallatin
7df6b1ab5d A start at an implemention of linux_rt_sendsig & linux_rt_sigreturn
and associated user-level signal trampoline glue.

Without this patch, an SA_SIGINFO style handler can be installed by a linux
app, but if the handler accesses its sip argument, it will get a garbage
pointer and likely segfault.

We currently supply a valid pointer, but its contents are mainly
garbage.  Filling this in properly is future work.

This is the second of 3 commits that will get IBM's JDK 1.3 working with
FreeBSD ...
2000-10-17 00:00:20 +00:00
des
e9a1ef51c6 Mark directories as directories, not as regular files. 2000-10-10 12:32:44 +00:00
phk
a4f549597e Initiate deorbit burn sequence for <machine/console.h>.
Replace all in-tree uses with necessary subset of <sys/{fb,kb,cons}io.h>.
This is also the appropriate fix for exo-tree sources.

Put warnings in <machine/console.h> to discourage use.
November 15th 2000 the warnings will be converted to errors.
January 15th 2001 the <machine/console.h> files will be removed.
2000-10-08 21:34:00 +00:00
des
1c37bf6427 Fix cut'n'paste bogon.
Submitted by:	Jim Pirzyk <Jim.Pirzyk@disney.com>
2000-09-18 17:46:01 +00:00
des
5ea50b42cc Remove unused variables. 2000-09-09 14:35:35 +00:00
des
3b46d8759e Add stat, uptime and version.
Note that version currently returns the first line of the version string
from vers.c, which is not quite what a Linux system would return.
2000-09-09 11:44:58 +00:00
des
1883bff184 Pierre Beyssac originally derived linprocfs from procfs, and I've made (and
will keep making) significant modifications, so I'm adding both our copyrights
to the top of these files.
2000-09-07 16:44:26 +00:00
des
1c7254b5aa Remove obsolete comment (see rev 1.84 of procfs_vnops.c) 2000-09-04 18:19:04 +00:00
rwatson
997c80bdd8 o Synchronize linprocfs authorization with procfs authorization improvements
(better hiding of hidden processes, more access checks, use vaccess(), et
  al)

Approved by:	des
Obtained from:	TrustedBSD Project
2000-09-01 18:40:52 +00:00
obrien
05f7bf4f57 Cleanup after repo copy of sys/svr4 to sys/compat/svr4. 2000-08-31 22:54:09 +00:00
rwatson
579561d0b0 o Update linprocfs to include similar changes as those in procfs, fixing
the build (oops!): replace calls to p_trespass() and PRISON_CHECK()
  with p_can(..., {P_CAN_SEE, P_CAN_DEBUG}, NULL)
o Remove volatile usage from procfs_readdir() to remove warnings
o Apply bp's CREATE fix to linprocfs, causing EROFS to be returned on
  CREATE calls to procfs_lookup()
o Some further synchronization still needs to occur: only existing
  access checks were replaced, to fix the build--the new ones were not
  added.  I'll do this later today, this is a "fix the build quickly"
  commit.  This means that, in the interim, some information leakage
  can still occur via linprocfs when using jail or kern.ps_showallprocs

Submitted by:	knu
Approved by:	des
Obtained from:	TrustedBSD Project
2000-08-30 13:23:19 +00:00
marcel
abf2c20161 Whitespace change: (near) KNF 2000-08-26 05:12:16 +00:00
marcel
8d6f6fc33c Fix bug in previous commit. We need to trim the limits to fit
the datatype (= long). Use ULONG_MAX and LONG_MAX to avoid
creating MD code.
2000-08-26 05:08:10 +00:00
marcel
9444fcb909 Re-implement linux_{g|s}etrlimit in terms of {g|s}etrlimit
instead of the o{g|s}etrlimit so that the dependency on
COMPAT_43 is removed.
2000-08-26 02:18:41 +00:00
marcel
cf2cbd89f2 Fix typo in license. 2000-08-25 07:32:24 +00:00
marcel
219e29595a Update include directives. 2000-08-22 01:51:54 +00:00
marcel
a7c5e98b7f Update include directives.
Make linux_to_bsd_sigset and linux_do_sigaction non-static.

Move linux_sigaction. linux_sigsuspend, linux_rt_sigsuspend,
linux_pause and linux_sigaltstack to MD code.
2000-08-22 01:49:54 +00:00
marcel
cf97f9d3c1 Update include directives.
Move linux_select to MD code (i386 compat. syscall).

Move linux_fork, linux_vfork, linux_clone, linux_mmap,
linux_pipe, linux_ioperm, linux_iopl and linux_modify_ldt
to MD code.
2000-08-22 01:46:50 +00:00
marcel
e222aa8f33 Update include directives. 2000-08-22 01:32:14 +00:00
marcel
1dea6a16ef Update include directives.
Make the sem*, msg* and shm* function non-static as they are
called from MD code.

Move linux_ipc to MD code.
2000-08-22 01:31:23 +00:00
marcel
17c9b37854 Update include directives and remove linux_execve. 2000-08-22 01:27:36 +00:00
marcel
2a224f3243 Provide prototypes for functions used by MD code. 2000-08-22 01:24:36 +00:00
bde
73dafc9420 Fixed null pointer panic for accessing "meminfo" when there is no swap. 2000-08-12 21:08:42 +00:00
peter
09f2cc343d Regen. (Fix SYS_exit) 2000-07-29 10:07:38 +00:00
peter
2acd9c62a7 Sigh. Fix SYS_exit problems. I misunderstood the significance of these
trailing options.
2000-07-29 10:05:25 +00:00
peter
564c126846 Regenerate with makesyscalls.sh 2000-07-29 00:21:50 +00:00
peter
b273253c9e Change the 'exit()' system call to 'sys_exit()'. This avoids overlapping
gcc's internal exit() prototypes and the (futile) hackery that we did to
try and avoid warnings.  main() was renamed for similar reasons.
Remove an exit related hack from makesyscalls.sh.
2000-07-29 00:16:28 +00:00
marcel
e68c0dd249 Remove the only use of SCARG and perform dead code elimination. 2000-07-27 01:22:24 +00:00
marcel
a069944f46 Add bounds checking to stackgap_alloc. Previously it was possible
to construct a path that was long enough (ie longer than
SPARE_USRSPACE bytes) and trash the stack.

Note that SPARE_USRSPACE is much smaller than MAXPATHLEN so that
the Linuxulator will now return ENAMETOOLONG even if the path
is smaller than MAXPATHLEN.

PR: 12749
2000-07-23 16:54:18 +00:00
marcel
2f1d9ab5d2 Revert implementation of setfsuid and setfsgid due to security
issues.

Requested by: rwatson
Backed by: kris
2000-07-20 05:37:41 +00:00
marcel
38404736a1 Implement pread and pwrite.
PR: 17991
Submitted by: Geoffrey Speicher <geoff@caribbean.sea-incorporated.com>
2000-07-17 00:17:07 +00:00
marcel
a29e7f6acf Implement setfsuid and setfsgid. Implementation derived from patch
in PR.

PR: 16993
Submitted by: Bjoern Groenvall <bg@sics.se>
2000-07-16 21:23:34 +00:00
marcel
8e33a73c68 Simplify the F_GETOWN and F_SETOWN fcntl commands. The workaround
is not needed since the FreeBSD native implementation switched
from TIOC{G|S}PGRP to FIO{G|S}ETOWN (kern_descrip.c rev 1.55).

PR: 16946
Submitted by: Victor Salaman <salaman@teknos.com>
2000-07-15 22:33:24 +00:00
mckusick
a3d0c189ea Add snapshots to the fast filesystem. Most of the changes support
the gating of system calls that cause modifications to the underlying
filesystem. The gating can be enabled by any filesystem that needs
to consistently suspend operations by adding the vop_stdgetwritemount
to their set of vnops. Once gating is enabled, the function
vfs_write_suspend stops all new write operations to a filesystem,
allows any filesystem modifying system calls already in progress
to complete, then sync's the filesystem to disk and returns. The
function vfs_write_resume allows the suspended write operations to
begin again. Gating is not added by default for all filesystems as
for SMP systems it adds two extra locks to such critical kernel
paths as the write system call. Thus, gating should only be added
as needed.

Details on the use and current status of snapshots in FFS can be
found in /sys/ufs/ffs/README.snapshot so for brevity and timelyness
is not included here. Unless and until you create a snapshot file,
these changes should have no effect on your system (famous last words).
2000-07-11 22:07:57 +00:00
phk
e5de271d47 Previous commit changing SYSCTL_HANDLER_ARGS violated KNF.
Pointed out by:	bde
2000-07-04 11:25:35 +00:00
phk
61ff05be25 Style police catches up with rev 1.26 of src/sys/sys/sysctl.h:
Sanitize SYSCTL_HANDLER_ARGS so that simplistic tools can grog our
sources:

        -sysctl_vm_zone SYSCTL_HANDLER_ARGS
        +sysctl_vm_zone (SYSCTL_HANDLER_ARGS)
2000-07-03 09:35:31 +00:00
green
9707bc34b0 Modify ktrace's general I/O tracing, ktrgenio(), to use a struct uio *
instead of a struct iovec * array and int len.  Get rid of stupidly trying
to allocate all of the memory and copyin()ing the entire iovec[], and
instead just do the proper VOP_WRITE() in ktrwrite() using a copy of
the struct uio that the syscall originally used.

This solves the DoS which could easily be performed; to work around the
DoS, one could also remove "options KTRACE" from the kernel.  This is
a very strong MFC candidate for 4.1.

Found by:	art@OpenBSD.org
2000-07-02 08:08:09 +00:00
alfred
7f71a1a091 fix races in the uidinfo subsystem, several problems existed:
1) while allocating a uidinfo struct malloc is called with M_WAITOK,
   it's possible that while asleep another process by the same user
   could have woken up earlier and inserted an entry into the uid
   hash table.  Having redundant entries causes inconsistancies that
   we can't handle.

   fix: do a non-waiting malloc, and if that fails then do a blocking
   malloc, after waking up check that no one else has inserted an entry
   for us already.

2) Because many checks for sbsize were done as "test then set" in a non
   atomic manner it was possible to exceed the limits put up via races.

   fix: instead of querying the count then setting, we just attempt to
   set the count and leave it up to the function to return success or
   failure.

3) The uidinfo code was inlining and repeating, lookups and insertions
   and deletions needed to be in their own functions for clarity.

Reviewed by: green
2000-06-22 22:27:16 +00:00
cracauer
6a344f765d Linux allows to mmap annonymous with a file descriptor passed, FreeBSD
doesn't.  In the Linux emulation layer, ignore the fd passed when
MAP_ANON is specified.

Known application to be fixed: Xanalys/Harlequin Lispworks

Also improve debug output for mmap, now showing what the emulation
layer mapped to what (-DDEBUG).

Reviewed by:	marcel
2000-06-15 09:57:34 +00:00
jake
961b97d434 Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.

Requested by:		msmith and others
2000-05-26 02:09:24 +00:00
des
f3c347774d Make exe a symlink. 2000-05-24 07:37:02 +00:00
jake
d93fbc9916 Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by:	phk
Reviewed by:	phk
Approved by:	mdodd
2000-05-23 20:41:01 +00:00
bde
b1d25b2b6c Regenerated (to fix "created from" lines, and to fix the previous
regeneration which somehow used the wrong syscalls.master file,
resulting in unbuildable svr4_sysent.c).
2000-05-10 14:38:28 +00:00
bde
dda3cf5130 Fixed the "created from" lines generated from this file. makesyscalls.sh
expects the active id to be on the first line of the specification file.

Fixed some nearby gratuitous differences with kern/syscalls.master.
2000-05-10 14:32:32 +00:00
bde
9bb1617433 Regenerated (fixed the calculation of sy_nargs in sysent tables). 2000-05-09 21:52:02 +00:00
bde
ef5a12c723 Don't forget to back up svr4_syscallnames.c. Don't depend on side effects
to generate it.
2000-05-09 21:40:01 +00:00
bde
3b5f5d7200 Fixed the return type and args struct tag for exit(). They were wrong in
all emulators.  These entries were unused, so the bug had no effect, but
the the args struct tag will be used to calculate sy_nargs correctly.
2000-05-09 18:08:51 +00:00
green
3c204936cd Give the "streams" modulea version (1) and depend on it from the
"svr4elf" module.  This unbreaks the SVR4 KLD (which had an undefined
function because of thenewly-committed KLD enhancements).
2000-05-06 01:39:45 +00:00
peter
22f6069a2a Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
phk
10914aa708 Remove unneeded #include <vm/vm_zone.h>
Generated by:	src/tools/tools/kerninclude
2000-04-30 18:52:11 +00:00
phk
ce2aa22c93 Remove unneeded #include <sys/kernel.h> 2000-04-29 15:36:14 +00:00
msmith
fc637387ee Fix include paths so that this builds correctly.
Submitted by:	Mike Pritchard <mpp@mppsystems.com>
2000-04-21 05:54:11 +00:00
msmith
9848084c38 Move the linprocfs bits under the rest of the i386 linux compatibility
code.
2000-04-20 03:54:27 +00:00
phk
6be1308ad1 Remove ~25 unneeded #include <sys/conf.h>
Remove ~60 unneeded #include <sys/malloc.h>
2000-04-19 14:58:28 +00:00
phk
75e82c815e Remove unneeded <sys/buf.h> includes.
Due to some interesting cpp tricks in lockmgr, the LINT kernel shrinks
by 924 bytes.
2000-04-18 15:15:39 +00:00
obrien
0eac6bbc67 Change our ELF binary branding to something more acceptable to the Binutils
maintainers.

After we established our branding method of writing upto 8 characters of
the OS name into the ELF header in the padding; the Binutils maintainers
and/or SCO (as USL) decided that instead the ELF header should grow two new
fields -- EI_OSABI and EI_ABIVERSION.  Each of these are an 8-bit unsigned
integer.  SCO has assigned official values for the EI_OSABI field.  In
addition to this, the Binutils maintainers and NetBSD decided that a better
ELF branding method was to include ABI information in a ".note" ELF
section.

With this set of changes, we will now create ELF binaries branded using
both "official" methods.  Due to the complexity of adding a section to a
binary, binaries branded with ``brandelf'' will only brand using the
EI_OSABI method.  Also due to the complexity of pulling a section out of an
ELF file vs. poking around in the ELF header, our image activator only
looks at the EI_OSABI header field.

Note that a new kernel can still properly load old binaries except for
Linux static binaries branded in our old method.

  *
  * For a short period of time, ``ld'' will also brand ELF binaries
  * using our old method.  This is so people can still use kernel.old
  * with a new world.  This support will be removed before 5.0-RELEASE,
  * and may not last anywhere upto the actual release.  My expiration
  * time for this is about 6mo.
  *
2000-04-18 02:39:26 +00:00
nsayer
2b0ea40f68 Fix some style bugs. The long line is in a chunk of code that's
being rewritten, though.

Submitted by:	bde
2000-03-13 15:27:19 +00:00
marcel
8e3795df0f Fix bug in linux_wait4 and linux_waitpid where garbage in the status
argument could panic the kernel.

Submitted by: Ian Dowse <iedowse@maths.tcd.ie>
Prompted by: jkh, gallatin
Approved by: prompters
2000-03-09 17:52:01 +00:00
nsayer
1ed48e03ed Implement Linux BLKGETSIZE ioctl, and open the door to implementing
other BLK.* ioctls should the desire arize.

Approved by:	jkh (via dufault)
2000-03-09 15:14:14 +00:00
marcel
39a8b7149f Fix accept(2) behavior in that accepted sockets don't inherit the
parents flags.

Note on the PR:
The PR contains another patch that's not being committed without
further background information. The PR stays open for now.

PR: 16946 (Victor A. Salaman <salaman@teknos.com>)
Prompted by: msmith
Indirect/implicit approval: jkh (shoot me if I'm wrong :-)
2000-02-28 18:58:59 +00:00
nsayer
7b51605016 Avoid passing an uninitialized structure member to the real
READSUBCHANNEL ioctl. This makes vmware work with SCSI CDROM
drives.

Approved by:	jkh
2000-02-01 16:20:24 +00:00
newton
4b174b1c2f Fix handling of svr4_sigsets, which are implemented in SysVR4 as a sequence
of 4 longs used as a bitmask.  sv4r4_sigfillset has been broken for a
while, probably since rev 1.5.

This patch fixes SVR4_NSIG (i.e.: sets it to the actual number of signals,
instead of the number of bits in the mask) because some SysVR4 clients
honestly seem to care about whether bits in the signal mask are set for
non-existant signals.

Additionally, the svr4_sigfillset macro has been replaced by a
fully fledged function, because the macro didn't actually work
(it returned an all-ones mask, but we don't want that:  we want 0's
set where FreeBSD doesn't actually have a signal which is the same
as an SysVR4 signal, for example).

SysVR4 clients can now successfully ignore signals, although catching
them remains problematic (see commit log message for rev1.13 of
sys/i386/svr4/svr4_machdep.c for more info).
2000-01-15 15:38:17 +00:00
newton
931fcb23e6 Remove some all-too-wordy debugging prints 2000-01-15 15:30:44 +00:00
marcel
efb67858cd Return Linux kernel version 2.2.12 by default. This is in line
with linux_base-6.1.
2000-01-10 13:09:08 +00:00
bde
c1ee52f159 Removed bogus include of opt_global.h. opt_global.h is automatically
included in all C files if it makes sense (i.e., for compiling kernels
but not for compiling modules), so including it explicitly just
complicates module makefiles.
2000-01-09 12:29:45 +00:00
marcel
d81064956c Convert the filesystem type returned in struct statfs by syscalls
linux_statfs and linux_fstatfs. Linux binaries testing this expect
the filesystem's magic number and not our vnode's tag.

PR: 15425
Tested by: Vladimir N. Silyaev <vsilyaev@mindspring.com>
2000-01-08 21:09:41 +00:00
newton
426b086cfe Need to #include vm_zone.h to pick up inline definition of zfree() so that
NDFREE() macro from namei.h will be happy.
2000-01-03 20:34:39 +00:00
eivind
87724eb673 Introduce NDFREE (and remove VOP_ABORTOP) 1999-12-15 23:02:35 +00:00
newton
9b6cd98a67 Replace the svr4_sys_getdents64() routine with a port of linux_getdents() --
differences between the VFS interface between FreeBSD and NetBSD make
it easier to pick up the Linux one than to continue development with the
NetBSD port.

This patch fixes a bug which caused duplicate filenames to be seen by
callers to svr4_sys_getdents64(), leading to malformed directory listings
from Solaris client programs.

Obtained from:	The Linuxulator, with a pointer from marcel
1999-12-12 11:25:33 +00:00
newton
fe01fbadb8 Avoid excessive redundancy in svr4_sys_getmsg() and svr4_sys_putmsg():
Only look up the provided descriptor in fd_ofiles[] once.

Submitted by:	Ville-Pertti Keinone <will@iki.fi>
1999-12-12 10:28:30 +00:00
newton
2fa1d32877 fd_revoke() shouldn't panic if the descriptor provided is not a file or
socket.  Return EINVAL instead.

Submitted by:	Ville-Pertti Keinone <will@iki.fi>
1999-12-12 10:27:04 +00:00
marcel
bc1cf0df28 Remove unused includes.
Found by: phk-scan
1999-12-10 12:36:20 +00:00
newton
1b15e9efa0 Remove unnecessary includes
Prodded by:	phk
1999-12-08 12:01:59 +00:00
newton
802528d8ff SVR4 emulator source files now take their compilation options from
opt_global.h and opt_svr4.h, instead of from the command line.  This
brings them in-line with most of the rest of the kernel.

svr4_ioctl.c has also failed to compile with debugging for a while
now;  fixed by adding systm.h and socketvar.

Some svr4 source files are automatically generated from syscalls.master;
these have been committed as consequential changes, otherwise everyone
will have to "make svr4_sysent.c".

Changes:

sys/svr4/svr4.h			include opt_global.h and opt_svr4.h
sys/svr4/svr4_ioctl.c		include svr4.h, sys/systm.h and sys/socketvar.h
sys/svr4/svr4_ipc.c		include svr4.h
sys/svr4/svr4_resource.c 	include svr4.h
sys/svr4/svr4_socket.c		include svr4.h
sys/svr4/svr4_ttold.c		include svr4.h
sys/svr4/syscalls.master	include svr4.h
sys/svr4/svr4_syscallnames.c	dependent on syscalls.master
sys/svr4/svr4_sysent.c		dependent on syscalls.master
sys/svr4/svr4_syscall.h		dependent on syscalls.master
sys/svr4/svr4_proto.h		dependent on syscalls.master
sys/modules/svr4/Makefile	create opt_global.h and opt_svr4.h
1999-12-08 10:51:17 +00:00
archie
97274880ad Fix LINT breakage. 1999-12-05 18:49:09 +00:00
marcel
ab78406859 Implement pluggable ioctl handlers.
Other modules can register and unregister ioctl handlers to extend the
ioctls known by the Linuxulator. A recent application is the vmware
port. The Linuxulator itself uses the new interface to register its
handlers as well. Handlers for the following types of ioctls have been
defined:
	cdrom
	console (=keyboard and VT handling)
	socket
	sound
	termio

All ioctl related defines and declarations have been moved to a new
file (linux_ioctl.h), except for the pluggable ioctl handler interface
definition.

While there, cleanup linux.h some more.

linux.h and linux_ioctl.[ch] have been made to conform to style(9) as
much as possible.

Inspired and reviewed by: Vladimir N. Silyaev
1999-12-04 11:10:22 +00:00
marcel
e25c88391a Implement linux_sigaltstack. 1999-11-30 15:02:28 +00:00
alfred
d7ac1dffb8 add linuxulator wrapper for SNDCTL_DSP_GETODELAY 1999-11-29 23:03:34 +00:00
marcel
8d58d1e492 Implement linux_ustat.
Reviewed by: bde
1999-11-27 16:55:14 +00:00
marcel
b35fbc0583 Implement fdatasync in terms of fsync. The regeneration of proto.h,
syscall.h and sysent.h was probably forgotten after the last change
syscalls.master.
1999-11-26 10:20:10 +00:00
phk
2431275ac4 General clean-up of socket.h and associated sources to synchronise up
with NetBSD and the Single Unix Specification v2.

This updates some structures with other, almost equivalent types and
effort is under way to get the whole more consistent.

Also removes a double definition of INET6 and some other clean-ups.

Reviewed by: green, bde, phk
Some part obtained from: NetBSD, SUSv2 specification
1999-11-24 20:49:04 +00:00
phk
d19d6e6b45 s/p_cred->pc_ucred/p_ucred/g 1999-11-21 12:38:21 +00:00
phk
d078ae5ffe simplify check for device. 1999-11-08 09:59:17 +00:00
peter
d95a9c614d Use fo_stat() rather than Yet Another duplication of kern_descrip.c's stat
code.
1999-11-08 03:33:21 +00:00
phk
8e3c3eafed useracc() the prequel:
Merge the contents (less some trivial bordering the silly comments)
of <vm/vm_prot.h> and <vm/vm_inherit.h> into <vm/vm.h>.  This puts
the #defines for the vm_inherit_t and vm_prot_t types next to their
typedefs.

This paves the road for the commit to follow shortly: change
useracc() to use VM_PROT_{READ|WRITE} rather than B_{READ|WRITE}
as argument.
1999-10-29 18:09:36 +00:00
marcel
90f63b1ea8 Fix the duplicate filenames that are the result of using getdents.
glibc2 defines struct dirent differently than the Linux kernel does.
The getdents function therefore needs to read a heuristically defined
number of kernel dirents to satisfy the request. In case where too
many kernel dirents have been read, the function lseeks on the
directory so that a next call will start with the right dirent. The
offset used in lseeking is the offset-field in the last dirent passed
to the application. This can only mean that the offset-field holds
the offset of the next dirent and not the offset of the dirent itself.
1999-10-21 09:14:49 +00:00
newton
3f1c7a4640 Remove unnecessary includes.
phk's script walked through .c and .h files, but some of the ones on
the list are actually derived from sys/svr4/syscalls.master.  Make
the necessary changes here and the others will implicitly follow...

Submitted by:	phk
1999-10-17 14:50:13 +00:00
newton
8c1e85e1e7 Remove unnecessary includes.
Submitted by:	phk
1999-10-17 14:44:48 +00:00
luoqi
fd8b4427a5 Add a per-signal flag to mark handlers registered with osigaction, so we
can provide the correct context to each signal handler.

Fix broken sigsuspend(): don't use p_oldsigmask as a flag, use SAS_OLDMASK
as we did before the linuxthreads support merge (submitted by bde).

Move ps_sigstk from to p_sigacts to the main proc structure since signal
stack should not be shared among threads.

Move SAS_OLDMASK and SAS_ALTSTACK flags from sigacts::ps_flags to proc::p_flag.
Move PS_NOCLDSTOP and PS_NOCLDWAIT flags from proc::p_flag to procsig::ps_flag.

Reviewed by:	marcel, jdp, bde
1999-10-11 20:33:17 +00:00
jhay
8705024885 Swap IOC_OUT and IOC_IN for the SETDIR macro. The linux ioctl read and
write bits are swapped.

Reviewed by:	luoqi, marcel
1999-10-06 19:51:37 +00:00
n_hibma
279ad30025 Removal of sys/device.h
- Move intrhook stuff into kernel.h
- Remove all occurrences of #device <device.h>
- Add kernel.h were necessary (nowhere)
- delete device.h

This file contained the structures for cfdata (old style config) and is no
longer used. It was included by most drivers.

It confuses the remote debugger as the definition of 'struct device' in
device.h is found before the one in bus_private.h.
1999-10-05 21:19:41 +00:00
peter
d986c12574 Oops. That'll teach me to commit without testing. I either replaced
one trigraph with another, or completely missed the point.  Kill it for
real this time.
1999-10-01 14:26:28 +00:00
peter
9e1682cb82 Zap a trigraph (???) 1999-10-01 14:23:36 +00:00
marcel
bd000d73ad sigset_t change (part 4 of 5)
-----------------------------

The compatibility code and/or emulators have been updated:

iBCS2 now mostly uses the older syscalls. SVR4 now properly
handles all signals. This has been achieved by using the
new sigset_t throughout the emulator. The Linuxulator has
been severely updated. Internally the new Linux sigset_t is
made the default. These are then mapped to and from the
new FreeBSD sigset_t.

Also, rt_sigsuspend has been implemented in the Linuxulator.
Implementing this syscall basicly caused all this sigset_t
changing in the first place and the syscall has been used
throughout the change as a means for testing. It basicly is
too much work to undo the implementation so that it can
later be added again.

A special note on the use of sv_sigtbl and sv_sigsize in
struct sysentvec:
Every signal larger than sv_sigsize is not translated and is
passed on to the signal handler unmodified. Signals in the
range 1 upto and including sv_sigsize are translated.
The rationale is that only the system defined signals need to
be translated.

The emulators also have been updated so that the translation
tables are only indexed for valid (system defined) signals.
This change also fixes the translation bug already in the
SVR4 emulator.
1999-09-29 15:12:18 +00:00
phk
a2c68c62db This patch clears the way for removing a number of tty related
fields in struct cdevsw:

        d_stop          moved to struct tty.
        d_reset         already unused.
        d_devtotty      linkage now provided by dev_t->si_tty.

These fields will be removed from struct cdevsw together with
d_params and d_maxio Real Soon Now.

The changes in this patch consist of:

        initialize dev->si_tty in *_open()
        initialize tty->t_stop
        remove devtotty functions
        rename ttpoll to ttypoll
        a few adjustments to these changes in the generic code
        a bump of __FreeBSD_version
        add a couple of FreeBSD tags
1999-09-25 16:21:39 +00:00
marcel
dcdfd6fd8e Linux doesn't complain if you remove a msg queue that doesn't exist
(given the proper permissions).
1999-09-23 09:57:45 +00:00
luoqi
c07e4cb2e0 Implement linux_ioperm() syscall. Fix linux_iopl() to use the level argument.
SVGAlib should now work.

Reviewed by:	marcel
1999-09-22 22:01:51 +00:00
green
140cb4ff83 This is what was "fdfix2.patch," a fix for fd sharing. It's pretty
far-reaching in fd-land, so you'll want to consult the code for
changes.  The biggest change is that now, you don't use
	fp->f_ops->fo_foo(fp, bar)
but instead
	fo_foo(fp, bar),
which increments and decrements the fp refcount upon entry and exit.
Two new calls, fhold() and fdrop(), are provided.  Each does what it
seems like it should, and if fdrop() brings the refcount to zero, the
fd is freed as well.

Thanks to peter ("to hell with it, it looks ok to me.") for his review.
Thanks to msmith for keeping me from putting locks everywhere :)

Reviewed by:	peter
1999-09-19 17:00:25 +00:00
marcel
bae502690e Fix getcwd. It must return the length of the path including the terminating 0.
While I'm here, fix style and debug printf.

Fix derived from patch by: Darryl Okahata <darrylo@sr.hp.com>
1999-09-17 08:35:08 +00:00
peter
4d14173217 <machine/soundcard.h> -> <sys/soundcard.h>, since it's an exported API
that's arch neutral and OSS API and Linux API compatable.
1999-09-04 14:15:26 +00:00
marcel
108c4c2c77 I missed the namechange of field desc in struct i386_ldt_args into descs while
reviewing luoqi's changes...

Pointed out by: luoqi
1999-09-03 06:18:39 +00:00
marcel
ff51285d10 Implementation of the modify_ldt syscall. Use the sysarch() interface to do
the actual work. When USER_LDT is not defined for a kernel, sysarch returns
EOPNOTSUPP. Display a message in that case and return ENOSYS to userland.

Reviewed by: luoqi
1999-09-02 21:50:42 +00:00
newton
0938ef15b0 Add MAINTAINER line 1999-09-01 00:32:18 +00:00
marcel
b192ab5a4b Fix a braino: Linux minor device numbers are 8 bits wide and not 10. 1999-08-29 11:47:01 +00:00
marcel
a932c8483a Fix a missing '-1' in the size argument of copyout in getgroups. Spotted while
reviewing the MFC in -stable.
1999-08-29 08:52:38 +00:00
marcel
76374868ab Implement the OSS_GETVERSION ioctl. The version returned can be changed through
the sysctl variable `compat.linux.oss_version'.

PR: 12917
Originator: Dean Lombardo <dlombardo@excite.com>
1999-08-28 08:43:03 +00:00
peter
d41244b69e $Id$ -> $FreeBSD$ 1999-08-28 02:16:32 +00:00
peter
3b842d34e8 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
marcel
421ba20de2 Add sysctl variables for the Linuxulator. These reside under `compat.linux' as
discussed on current.

The following variables are defined (for now):

    osname (defaults to "Linux")
        Allow users to change the name of the OS as returned by uname(2),
        specially added for all those Linux Netscape users and statistics
        maniacs :-) We now have what we all wanted!

    osrelease (defaults to "2.2.5")
        Allow users to change the version of the OS as returned by uname(2).
        Since -current supports glibc2.1 now, change the default to 2.2.5
        (was 2.0.36).

    oss_version (defaults to 198144 [0x030600])
        This one will be used by the OSS_GETVERSION ioctl (PR 12917) which I
        can commit now that we have the MIB. The default version number is the
        lowest version possible with the current 'encoding'.

A note about imprisoned processes (see jail(2)):
  These variables are copy-on-write (as suggested by phk). This means that
  imprisoned processes will use the system wide value unless it is written/set
  by the process. From that moment on, a copy local to the prison will be
  used.

A note about the implementation:
  I choose to add a single pointer to struct prison, because I didn't like the
  idea of changing struct prison every time I come up with a new variable. As
  a side effect, the extra storage is only needed when a variable is set from
  within the prison. This also minimizes kernel bloat when the Linuxulator is
  not used; both compiled in or as a module.

Reviewed by: bde (first version only) and phk
1999-08-27 19:47:41 +00:00
phk
591c94d4c6 Simplify the handling of VCHR and VBLK vnodes using the new dev_t:
Make the alias list a SLIST.

        Drop the "fast recycling" optimization of vnodes (including
        the returning of a prexisting but stale vnode from checkalias).
        It doesn't buy us anything now that we don't hardlimit
        vnodes anymore.

        Rename checkalias2() and checkalias() to addalias() and
        addaliasu() - which takes dev_t and udev_t arg respectively.

        Make the revoke syscalls use vcount() instead of VALIASED.

        Remove VALIASED flag, we don't need it now and it is faster
        to traverse the much shorter lists than to maintain the
        flag.

        vfs_mountedon() can check the dev_t directly, all the vnodes
        point to the same one.

Print the devicename in specfs/vprint().

Remove a couple of stale LFS vnode flags.

Remove unimplemented/unused LK_DRAINED;
1999-08-26 14:53:31 +00:00
marcel
de5fc01259 Fix linux_newlstat in that it doesn't return the attributes of its containing
directory. Also, update arguments of NDINIT for both newstat and newlstat.

While I'm at it, fix style bugs in all {s|ls|fs}tat syscalls.

Reported by: bde
1999-08-25 15:23:54 +00:00
marcel
09bd601964 Fix {g|s}etgroups semantics. We use cr_groups[0] to hold egid. This means that
egid will be twice in the set and that setting cr_groups[0] will change egid.
This is simply solved by ignoring cr_groups[0]. That is; linux_getgroups does
not return cr_groups[0] and linux_setgroups does not touch it.

Noticed by: bde
Brought to my attention by: sheldonh
1999-08-25 14:11:01 +00:00
marcel
fb2dacbbb4 Change all UNIMPL syscalls to STD and add them to linux_dummy. Now we always
know if and when an unimplemented or obsoleted syscall is being used. Make the
message more end-user friendly.

And as long as we're here, rename some unimplemeted syscalls (linux_phys ->
linux_umount2, linux_vm86 -> linux_vm86old, linux_new_vm86 -> linux_vm86).

Change prototype for linux_newuname from `struct linux_newuname_t *' into
`struct linux_new_utsname *'. This change is reflected in linux.h and
linux_misc.c.
1999-08-25 11:19:03 +00:00
marcel
42f708bf62 Fix a bug in debug-printfs of struct linux_termios fields, where I forgot to
change the format specifier after changing the definition of the structure.

Submitted by: billf
Commented on by: bde
1999-08-17 10:27:55 +00:00
marcel
c1bb094a2c Fix bug in the debug-printf of the vfork syscall, where the format specifier
didn't match the argument (p->p_pid).

While I'm at it, also fix the dupo in the format string and fix the annoying
inconsistency in all the debug-printfs wrt p_pid arguments. Change all of them
to use the %ld format specifier and cast the p_pid arguments to long.

Submitted by: billf
1999-08-17 10:09:06 +00:00
marcel
bb62e6fb85 Implement linux_vfork() syscall by calling vfork(). Analogous to the
linux_fork() implementation.
1999-08-16 11:49:30 +00:00
marcel
1e0d4f074a Provide wrappers for sched_{s|g}etscheduler. We need to convert the policy
argument.

PR: 12006
Originator: Jean-Claude MICHOT <jcmichot@teaser.fr>
1999-08-15 17:28:40 +00:00
marcel
4b99c12e08 Fix bug in the fcntl syscall where 'arg' was not set properly.
PR: 12147
Submitted by: Allan Saddi <asaddi@philosophysw.com>
1999-08-15 14:22:30 +00:00
marcel
6ba73f21a5 Include opt_compat.h so that COMPAT_43 is defined. This gives us the proper
prototypes of o{s|g}etrlimit (from sys/sysproto.h). Update linux_{s|g}etrlimit
so that the arguments to o{s|g}etrlimit are corresponding the prototypes.

Pointed out by: bde
1999-08-15 13:28:35 +00:00
marcel
538e4c7fd4 Implementation of the linux_getcwd syscall. 1999-08-14 18:20:44 +00:00
marcel
195c2867a7 Implementation of linux_rt_sigaction and linux_rt_sigprocmask syscalls. Both
functions use the new sigset_t and sigaction_t which allows support for more
than 32 signals. Only the lower 32 signals are supported for now.

linux_rt_sigaction, linux_sigaction and linux_signal use linux_do_sigaction
to do the actual work. That way unnecessary redundancy is avoided. The same
has been done for linux_rt_sigprocmask and linux_sigprocmask. They call
linux_do_sigprocmask to do the actual work.
1999-08-14 17:28:46 +00:00
marcel
9e447c4d1a Fix LINUX_TIOC{S|G}SERIAL implementation. Both do not copy data in or out
of kernel space. Remove the ioctl supporting functions, and move the actual
code to the switch-statement. Now everybody can clearly see that the
implementation is really poor.

Also fix a typo in LINUX_TIOCGETD. The underlying function was given command
TIOCSETD instead op TIOCGETD...
1999-08-14 13:26:44 +00:00
newton
5ff2615ae3 Avoid possible panic by checking for EFAULT from copyinstr() during
pathname translation.

Submitted by:	green
1999-08-14 10:52:33 +00:00
marcel
4437c70523 Fix the LINUX_TCSET{A|AW|AF} and LINUX_TCSET{S|SW|SF} ioctls. These all suffer
from the same bug in that the argument is not first copied from user space
before it is used. This is part 2 (of 2) of the termios fixes.
1999-08-14 10:30:38 +00:00
marcel
6fb5b99704 Fix a couple of termio/termios conversion bugs/typos/dupos/brainos and other
changes. This is part 1 of the complete termios ioctl fixes.

o  change type of c_{i|o|c|l}flag in struct termios from unsigned long to
   unsigned int. The type now matches the Linux definitions.
o  replaced constants by the corresponding defines in sptab[] for clarity.
   Since there's no define for 135 baud, its mapping has been dropped.

function bsd_to_linux_termios:
o  Fix typo IXON -> IXANY.
o  Remove bogus assignment to c_cc[LINUX_VSWTC].

function linux_to_bsd_termios:
o  Fix dupo LINUX_IXON -> LINUX_IXANY.
o  Add LINUX_CREAD mapping.
o  Fix typo IEXTEN -> LINUX_IEXTEN.

function linux_to_bsd_termio:
o  Small optimization: Don't preset the complete c_cc array when we next
   assign to the first LINUX_NCC entries.
1999-08-14 10:05:50 +00:00
marcel
a9a84c7c98 Implementation of the CDROMSUBCHNL ioctl. 1999-08-13 14:44:13 +00:00
marcel
43df2a8dbd In doing lock type conversion (struct flock), make sure that carbage in results
in deterministic behaviour. In this case known garbage out.
The fix is different than suggested in the PR.

PR: 12749
Originator: Boris Nikolaus <boris@cs.tu-berlin.de>
1999-08-13 09:27:54 +00:00
marcel
3e18cc5fc9 Use a wrapper for the link syscall that does name translations.
PR: 12749
Submitted by: Boris Nikolaus <boris@cs.tu-berlin.de>
1999-08-12 19:53:33 +00:00
marcel
be49f50ba7 Do not map {s|g}etrlimit onto FreeBSD syscalls. The arguments don't match.
The linux syscalls translate the arguments first before invoking the
FreeBSD native syscalls.

PR: kern/9591
Originator: John Plevyak <jplevyak@inktomi.com>
1999-08-11 13:34:31 +00:00
marcel
250d78c0f1 Fix page fault in linux_uselib syscall.
PR: 12910
Submitted by: Peter Holm <peter@holm.cc>
1999-08-08 11:26:46 +00:00
green
d0cd160775 We don't end up checking for a return value of EFAULT from the copyinstr()
in the pathname translation procedure. This proves fatal, and can be
easily fixed. This or a similar change needs to be committed to svr4_util.h
and ibcs2_util.h. I will update ibcs2_util.h, if noone else thinks of a
better way to do this, in the same manner. I will leave svr4 to the
respective maintainer.

This closes the problem of the only crash I've been able to produce as
a user recently, except for (currently not-in-the-source tree) fd
table sharing fixes. Thanks goes to pho for his stress-testers.
1999-08-07 05:33:35 +00:00
newton
2c354bcb9e Previous commit also removed some 'const' qualifiers on args for
svr4_sys_sendto() which probably shouldn't have been 'const'.
1999-07-30 13:44:43 +00:00
newton
9810ef40ca Previous commit also finished cleaning up some dev_t -> udev_t transformations
related to the commit for rev 1.3 of svr4_stat.c.
svr4_sysvec.c also received a copyright message (which is why it grew by
28 lines).
1999-07-30 13:42:56 +00:00
newton
4f2b522ebc Fix svr4_sys_poll(); SysV STREAMS produce return values from poll() which
BSD sockets don't.  Guess at a correct emulation for those values (it seems
to work for telnet, ftp and friends)
1999-07-30 13:12:26 +00:00
newton
8cf6f8ca29 Add $Id$ tags 1999-07-30 12:45:21 +00:00
newton
39e910ef22 Fix panic caused when *stat64() family of syscalls try to fill-in
their svr4_stat64 structures with old dev_t values instead of udev_t's.
Panic was caused when major() and minor() were called with args which
weren't pointers.  The panic was probably introduced in rev 1.51 of
kern_conf.c
1999-07-30 12:43:30 +00:00
phk
251f187eba Use the vn_todev() function, rather than VOP_GETATTR 1999-07-18 14:31:01 +00:00
marcel
53c130ee84 Implementation of TCXONC.
Reviewed by: bde
1999-07-17 08:24:57 +00:00
marcel
c7259c121a Implement VT_RELDISP ioctl
Submitted by: Kazutaka Yokota <yokota@FreeBSD.org>
1999-07-08 16:15:19 +00:00
marcel
769aaa4c3a Trivial implementation of TIOCM{S|G}ET and TIOCMBI{S|C} ioctls. No need
to convert the arguments.
1999-07-06 11:41:48 +00:00
cracauer
0bb9e75fd2 Rename struct members sa_siginfo. POSIX reserves identifiers starting
with sa_ when <signal.h> is included. They would conflict with the
upcoming SA_SIGINFO implementation.

Reviewed by:	BDE
1999-07-06 06:55:29 +00:00
marcel
1042b65a2f Let newuname return "Linux" as the OS name and not "FreeBSD". Also, return a
more sensible (for Linux applications) release number. Hardcoding a release
number has its drawbacks, but it will do for now.
1999-07-05 19:18:03 +00:00
green
73343338eb sys/buf.h needs to have included sys/systm.h for spl prototypes. 1999-07-03 04:56:57 +00:00
phk
7e26ca1d1a Divorce "dev_t" from the "major|minor" bitmap, which is now called
udev_t in the kernel but still called dev_t in userland.

Provide functions to manipulate both types:
        major()         umajor()
        minor()         uminor()
        makedev()       umakedev()
        dev2udev()      udev2dev()

For now they're functions, they will become in-line functions
after one of the next two steps in this process.

Return major/minor/makedev to macro-hood for userland.

Register a name in cdevsw[] for the "filedescriptor" driver.

In the kernel the udev_t appears in places where we have the
major/minor number combination, (ie: a potential device: we
may not have the driver nor the device), like in inodes, vattr,
cdevsw registration and so on, whereas the dev_t appears where
we carry around a reference to a actual device.

In the future the cdevsw and the aliased-from vnode will be hung
directly from the dev_t, along with up to two softc pointers for
the device driver and a few houskeeping bits.  This will essentially
replace the current "alias" check code (same buck, bigger bang).

A little stunt has been provided to try to catch places where the
wrong type is being used (dev_t vs udev_t), if you see something
not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if
it makes a difference.  If it does, please try to track it down
(many hands make light work) or at least try to reproduce it
as simply as possible, and describe how to do that.

Without DEVT_FASCIST I belive this patch is a no-op.

Stylistic/posixoid comments about the userland view of the <sys/*.h>
files welcome now, from userland they now contain the end result.

Next planned step: make all dev_t's refer to the same devsw[] which
means convert BLK's to CHR's at the perimeter of the vnodes and
other places where they enter the game (bootdev, mknod, sysctl).
1999-05-11 19:55:07 +00:00
peter
5e793df8f3 Ack! I deleted "struct", not "const".. Oh boy...
Submitted by:	jkh
1999-05-10 12:38:41 +00:00
peter
5350e97b5a Fix a couple of warnings and some bitrot in comments. 1999-05-09 16:04:14 +00:00
phk
aa8b804336 Yet another place which knew too much. Still not sure how much
good this does in the end.
1999-05-09 10:25:30 +00:00
phk
500e41bd71 I got tired of seeing all the cdevsw[major(foo)] all over the place.
Made a new (inline) function devsw(dev_t dev) and substituted it.

Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)

DEVFS will eventually benefit from this change too.
1999-05-08 06:40:31 +00:00
peter
459d4a2cc5 Fix up a few easy 'assignment used as truth value' and 'suggest parens
around && within ||' type warnings.  I'm pretty sure I have not masked
any problems here, I've committed real problem fixes seperately.
1999-05-06 18:44:42 +00:00
luoqi
a71077fa5c - Handle mixer read ioctls correctly. They have the same group, number and
argument size as their write counterparts and were handled as write ioctls.
- Emulate some cdrom ioctls.
1999-04-29 04:37:57 +00:00
luoqi
af7e9be5cc Enable vmspace sharing on SMP. Major changes are,
- %fs register is added to trapframe and saved/restored upon kernel entry/exit.
- Per-cpu pages are no longer mapped at the same virtual address.
- Each cpu now has a separate gdt selector table. A new segment selector
  is added to point to per-cpu pages, per-cpu global variables are now
  accessed through this new selector (%fs). The selectors in gdt table are
  rearranged for cache line optimization.
- fask_vfork is now on as default for both UP and SMP.
- Some aio code cleanup.

Reviewed by:	Alan Cox	<alc@cs.rice.edu>
		John Dyson	<dyson@iquest.net>
		Julian Elischer	<julian@whistel.com>
		Bruce Evans	<bde@zeta.org.au>
		David Greenman	<dg@root.com>
1999-04-28 01:04:33 +00:00
phk
c85ea5017c Change suser_xxx() to suser() where it applies. 1999-04-27 12:21:16 +00:00
phk
16e3fbd2c1 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
peter
a74bdeb7d1 unifdef -DVM_STACK - it's been on for a while for x86 and was checked
and appeared to be working for the Alpha some time ago.
1999-04-19 14:14:14 +00:00
peter
b5e9563d84 Well folks, this is it - The second stage of the removal for build support
for LKM's..
1999-04-17 08:36:07 +00:00
peter
ea1e34d0c9 Image activators use EXEC_SET(), not TEXT_SET(). (The first is a macro
wrapper for DECLARE_MODULE(), the second is a linker set declaration)
1999-04-17 07:55:15 +00:00
julian
7e163b4f03 Fix thread/process tracking and differentiation for Linux threads emulation.
Submitted by:	Richard Seaman, Jr." <dick@tar.com>

Also clean some compiler warnings in surrounding code.
1999-03-02 00:28:09 +00:00
newton
69d836b175 svr4 emulator will refuse to unload itself if it is currently in use. 1999-02-04 12:43:17 +00:00
newton
7c096f22d6 Acquiesce to proc.h for declarations of M_ZOMBIE, M_SUBPROC (and reorder
includes so proc.h knows the right type for 'em).

Suggested by: bde
1999-02-01 13:26:13 +00:00
newton
6c80ae4325 Oops - Ripped out a bit of debugging code which will stop certain bits
of networking from working for people without DEC Tulip ethernet cards.
1999-01-30 09:42:55 +00:00
newton
3997fb47ad Emulator KLD for SysVR4 executables grabbed from NetBSD.
See http://www.freebsd.org/~newton/freebsd-svr4 for limitations,
capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
julian
05a2232887 Enable Linux threads support by default.
This takes the conditionals out of the code that has been tested by
various people for a while.
ps and friends (libkvm) will need a recompile as some proc structure
changes are made.

Submitted by:	"Richard Seaman, Jr." <dick@tar.com>
1999-01-26 02:38:12 +00:00
msmith
c319cef858 Fix linux sendmsg() emulation
Submitted by:	Brian Feldman <green@unixhelp.org>
1999-01-11 05:28:44 +00:00
eivind
0524512404 Use truncate() instead of otruncate() - step on the way to stopping
the linulator from depending on COMPAT_43.
1999-01-10 23:15:35 +00:00
julian
4666ac5027 Add (but don't activate) code for a special VM option to make
downward growing stacks more general.
Add (but don't activate) code to use the new stack facility
when running threads, (specifically the linux threads support).
This allows people to use both linux compiled linuxthreads, and also the
native FreeBSD linux-threads port.

The code is conditional on VM_STACK. Not using this will
produce the old heavily tested system.

Submitted by: Richard Seaman <dick@tar.com>
1999-01-06 23:05:42 +00:00
sos
241d58f7a2 Commit patch in
PR: 9232
Submitted by:	marcel@scc.nl <Marcel Moolenaar>
1998-12-30 21:20:00 +00:00
sos
9023a71340 Commit #2 of
PR: 9235
Submitted by:	marcel@scc.nl <Marcel Moolenaar>
1998-12-30 21:01:34 +00:00
julian
46bb1eee79 According to the author..
"I've been having a problem running the patches [committed to current]
installed with the COMPAT_LINUX_THREADS option along
with the VM_STACK patches I did.  I'm not sure what
the problem is, since it seemed to work before.

In any event, the attached patch fixes the problem for
me.  While I've had no report of problems from anyone
else, possibly it would be wise to commit the patch
until the problem is found.

Also, there was some left-over junk in the linux_misc.c
file from some earlier work I did.  The attached patch
cleans that up too."

Submitted by: "Richard Seaman, Jr." <dick@tar.com>
1998-12-24 21:21:20 +00:00
sos
65891f434b Kill(pid, 0) normally returns 0 on both FreeBSD and Redhat after having
performed all sorts of sanity checks. The FreeBSD linux emulator returns
EINVAL in such a case.
Allowing signal 0 to be passed to kill will result in compatible behaviour.

PR:	9082
Submitted by:	Marcel Moolenaar <marcel@scc.nl>
1998-12-21 19:21:36 +00:00
julian
61490236bc Reviewed by: Luoqi Chen, Jordan Hubbard
Submitted by:	 "Richard Seaman, Jr." <lists@tar.com>
Obtained from:	linux :-)

Code to allow Linux Threads to run under FreeBSD.

By default not enabled
This code is dependent on the conditional
COMPAT_LINUX_THREADS (suggested by Garret)
This is not yet a 'real' option but will be within some number of hours.
1998-12-19 02:55:34 +00:00
bde
7b9dc76b76 Removed the cast to a pointer in the definition of PS_STRINGS and
adjusted related casts to match (only in the kernel in this commit).
The pointer was only wanted in one place in kern_exec.c.  Applications
should use the kern.ps_strings sysctl instead of PS_STRINGS, so they
shouldn't notice this change.
1998-12-16 16:28:58 +00:00
jkh
250b33b964 linux_pipe does not preserve the edx register. Linux and
programs using glibc expect edx to be preserved accross syscalls.
As a result, linux programs running in emulation mode can
have whatever value may be represented by edx clobbered.

PR:		9038
Submitted-By:	Richard Seaman, Jr. <dick@tar.com>
1998-12-10 13:47:18 +00:00
archie
982e80577d Examine all occurrences of sprintf(), strcat(), and str[n]cpy()
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.

These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.

Reviewed by:	Bruce Evans <bde@zeta.org.au>
Reviewed by:	Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by:	Mike Spengler <mks@networkcs.com>
1998-12-04 22:54:57 +00:00
jkh
78b866cf0e MF22: Bring in some linux sound ioctl support which I committed to 2.2
for PR 7792 but did not bring forward.

Submitted by:	Avatar Liang <avatar@www.mmlab.cse.yzu.edu.tw>
PR:		8656
1998-11-12 00:42:08 +00:00
jdp
02ed78af40 Fix a couple of out-of-bounds array references in mapping between
Linux and FreeBSD signal numbers.  Also, check signal numbers passed
in from application programs for validity.  Without these checks,
it is trivial to panic the system from a Linux program.
1998-10-11 04:54:16 +00:00
jfieber
abe2a74713 Make async I/O on a socket work.
Although the current Sybase license does not permit running under
emulation, FreeBSD 3.0 is now "Sybase Ready" should the license change.
1998-10-05 16:37:36 +00:00
sos
36a89b7d7a In linux_newuname bzero the right type of struct (linux_newuname_t). 1998-10-05 12:40:42 +00:00
jfieber
cd83b59140 Add several missing ioctl handlers. One needed by Sybase, the others
found while looking for the one.
1998-09-30 01:42:53 +00:00