Commit Graph

27 Commits

Author SHA1 Message Date
John Baldwin
e0569c0798 Clean up the svr4 socket cache and streams code some to make it more easily
locked.
- Move all the svr4 socket cache code into svr4_socket.c, specifically
  move svr4_delete_socket() over from streams.c.  Make the socket cache
  entry structure and svr4_head private to svr4_socket.c as a result.
- Add a mutex to protect the svr4 socket cache.
- Change svr4_find_socket() to copy the sockaddr_un struct into a
  caller-supplied sockaddr_un rather than giving the caller a pointer to
  our internal one.  This removes the one case where code outside of
  svr4_socket.c could access data in the cache.
- Add an eventhandler for process_exit and process_exec to purge the cache
  of any entries for the exiting or execing process.
- Add methods to init and destroy the socket cache and call them from the
  svr4 ABI module's event handler.
- Conditionally grab Giant around socreate() in streamsopen().
- Use fdclose() instead of inlining it in streamsopen() when handling
  socreate() failure.
- Only allocate a stream structure and attach it to a socket in
  streamsopen().  Previously, if a svr4 program performed a stream
  operation on an arbitrary socket not opened via the streams device,
  we would attach streams state data to it and change f_ops of the
  associated struct file while it was in use.  The latter was especially
  not safe, and if a program wants a stream object it should open it via
  the streams device anyway.
- Don't bother locking so_emuldata in the streams code now that we only
  touch it right after creating a socket (in streamsopen()) or when
  tearing it down when the file is closed.
- Remove D_NEEDGIANT from the streams device as it is no longer needed.
2006-07-21 20:40:13 +00:00
John Baldwin
a02f5c6204 Initialize svr4_head during MOD_LOAD rather than on demand. 2006-07-19 18:26:09 +00:00
John Baldwin
55522478e6 Lock Giant in svr4_add_socket() so that the various svr4_*stat() calls
can be marked MP safe as this is the only part of them that is not
already MP safe.

Approved by:	re (scottl)
2005-07-07 19:27:29 +00:00
Warner Losh
898b0535b7 Start each of the license/copyright comments with /*- 2005-01-05 22:34:37 +00:00
Poul-Henning Kamp
f3732fd15b Second half of the dev_t cleanup.
The big lines are:
	NODEV -> NULL
	NOUDEV -> NODEV
	udev_t -> dev_t
	udev2dev() -> findcdev()

Various minor adjustments including handling of userland access to kernel
space struct cdev etc.
2004-06-17 17:16:53 +00:00
David E. O'Brien
ad39da7821 Use __FBSDID(). 2003-06-10 21:44:29 +00:00
Poul-Henning Kamp
66f7a83274 Put definition of struct svr4_sockcache_entry in a .h file rather than
having two independent definitions in two .c files.
Fiddle surrounding details to match.

Found by:       FlexeLint
2003-05-31 20:33:18 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Matthew Dillon
48e3128b34 Bow to the whining masses and change a union back into void *. Retain
removal of unnecessary casts and throw in some minor cleanups to see if
anyone complains, just for the hell of it.
2003-01-13 00:33:17 +00:00
Matthew Dillon
cd72f2180b Change struct file f_data to un_data, a union of the correct struct
pointer types, and remove a huge number of casts from code using it.

Change struct xfile xf_data to xun_data (ABI is still compatible).

If we need to add a #define for f_data and xf_data we can, but I don't
think it will be necessary.  There are no operational changes in this
commit.
2003-01-12 01:37:13 +00:00
Alfred Perlstein
d1e405c5ce SCARGS removal take II. 2002-12-14 01:56:26 +00:00
Alfred Perlstein
bc9e75d7ca Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
Alfred Perlstein
0bbe7292e1 Remove SCARGS.
Reviewed by: md5
2002-12-13 22:27:25 +00:00
Julian Elischer
b40ce4165d KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
John Baldwin
97eba215ac Argh, atomic_store_rel -> atomic_store_rel_int. 2001-01-23 21:40:07 +00:00
John Baldwin
48f8ca448a - Use proper atomic operations to make the run time initialization
controlled by svr_str_initialized be MP safe.
2001-01-23 21:07:16 +00:00
David E. O'Brien
50e59af900 Cleanup after repo copy of sys/svr4 to sys/compat/svr4. 2000-08-31 22:54:09 +00:00
Jake Burkholder
e39756439c 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
Jake Burkholder
740a1973a6 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
Mark Newton
68d6a0593b Remove unnecessary includes
Prodded by:	phk
1999-12-08 12:01:59 +00:00
Mark Newton
6d6fd92936 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
Mark Newton
aa13b40be1 Remove unnecessary includes.
Submitted by:	phk
1999-10-17 14:44:48 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Mark Newton
c8f2ce34ac 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
Mark Newton
587297dc40 Add $Id$ tags 1999-07-30 12:45:21 +00:00
Mark Newton
f22dd58acc 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