2271 Commits

Author SHA1 Message Date
phk
3d7d9296c0 Use suser() to determine super-user-ness, don't examine cr_uid directly. 1999-01-30 12:21:49 +00:00
phk
67f187760e Use suser() to check for super user rather than examining cr_uid directly.
Use TTYDEF_SPEED rather than 9600 a couple of places.

Reviewed by:	bde, with a few grumbles.
1999-01-30 12:17:38 +00:00
newton
3a4cced85e Unstaticized routines which are needed by the svr4 KLD and the streams
garbage needed to support SysVR4 networking.
1999-01-30 06:25:00 +00:00
dillon
a784c6e33d More const fixes for -Wall, -Wcast-qual 1999-01-29 23:18:50 +00:00
dillon
072a211f35 *_execsw static structures cannot be const due to the way they interact
with EXEC_SET, DECLARE_MODULE, and module_register.  Specifically,
    module_register.  We may eventually be able to make these const, but
    not now.
1999-01-29 22:59:43 +00:00
bde
86079656ff Cast to `const char *' instead of to c_caddr_t. This is part of
terminating c_caddr_t with extreme prejudice.  Here we depended
on the "opaque" type c_caddr_t being precisely `const char *'
to do unportable pointer arithmetic.
1999-01-29 09:04:27 +00:00
dillon
1c7115fb5f More -Wall / -Wcast-qual cleanup. Also, EXEC_SET can't use
C_DECLARE_MODULE due to the linker_file_sysinit() function
    making modifications to the data.
1999-01-29 08:36:45 +00:00
bde
cf8e8cebcc Removed bogus casts to c_caddr_t. This is part of terminating
c_caddr_t with extreme prejudice.  Here the original casts to
caddr_t were to support K&R compilers (or missing prototypes),
but the relevant source files require an ANSI compiler.
1999-01-29 08:29:05 +00:00
bde
82b636d3e3 Removed a bogus cast to c_caddr_t. This is part of terminating
c_caddr_t with extreme prejudice.  Here the point of the original
cast to caddr_t was to break the warning about the const mismatch
between write(2)'s `const void *buf' and `struct uio's `char
*iov_base' (previous bitrot gave a gratuitous dependency on caddr_t
being char *).  Compiling with -Wcast-qual made the cast a full
no-op.

This change has no effect on the warning for discarding `const'
on assignment to iov_base.  The warning should not be fixed by
splitting `struct iovec' into a non-const version for read()
and a const version for write(), since correct const poisoning
would affect all pointers to i/o addresses.  Const'ness should
probably be forgotten by not declaring it in syscalls.master.
1999-01-29 08:10:35 +00:00
dillon
85d7bb85d5 cleanup warnings by propogating const char pointers properly. 1999-01-29 08:09:32 +00:00
dillon
ca558df378 Fix warnings related to -Wall -Wcast-qual 1999-01-28 17:32:05 +00:00
dillon
9328688fc8 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-28 01:59:53 +00:00
dillon
975fba8a24 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-28 00:57:57 +00:00
dillon
f9a4729a9b Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile.

    This commit includes significant work to proper handle const arguments
    for the DDB symbol routines.
1999-01-27 23:45:44 +00:00
dillon
a40e0249d4 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 21:50:00 +00:00
dillon
143a811b84 Fix array index of signed char to cast to unsigned char and then to int.
Also general const cleanup.
1999-01-27 21:36:14 +00:00
dillon
e3ebc13acc Fix getenv() comparison against '=' ... was *cp = '=' instead of
*cp == '='.
1999-01-27 21:24:50 +00:00
bde
9e88026022 Don't forget to count context switches in yield(). 1999-01-27 10:14:05 +00:00
bde
452461a59b Include <sys/select.h> -- don't depend on pollution in <sys/proc.h>. 1999-01-27 10:10:03 +00:00
dillon
8953d7d0e8 Ok, people didn't like kern.conf_dir. Poof, backed out. 1999-01-26 07:37:11 +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
dillon
1d5feb4593 Add kern.conf_dir sysctl. This is a R+W string used to specify the
directory containing rc.conf.local and rc.local, and possibly other
    things in the future.

    This sysctl is used by the diskless startup code and new rc.conf.  If
    it cannot be found or is empty, the system should revert to using /etc.
1999-01-25 18:26:09 +00:00
fenner
56bddd51c2 Port NetBSD's 19990120-accept bug fix. This works around the race condition
where select(2) can return that a listening socket has a connected socket
queued, the connection is broken, and the user calls accept(2), which then
blocks because there are no connections queued.

Reviewed by:	wollman
Obtained from:	NetBSD
(ftp://ftp.NetBSD.ORG/pub/NetBSD/misc/security/patches/19990120-accept)
1999-01-25 16:58:56 +00:00
fenner
479ab8882b Don't free the socket address if soaccept() / pru_accept() doesn't
return one.
1999-01-25 16:53:53 +00:00
dfr
d58f08f33f Don't try to call SYSUNINIT functions if there was a link error.
Reviewed by: Peter Wemm <peter@netplex.com.au>
1999-01-25 08:42:24 +00:00
bde
ee544bdf09 Go back to only supporting revoke() for bdevs and cdevs. It is very
buggy for fifos, and no one seems to have investigated its behaviour
on other types of files.  It has been broken since the Lite2 merge
in rev.1.54.

Nagged about by:	Brian Feldman (green@unixhelp.org)
1999-01-24 06:28:37 +00:00
dillon
f8af5b2105 Addendum: The original code that the last commit 'fixed' actually did
not have a bug in it, but the last commit did make it more readable so
    we are keeping it.
1999-01-24 03:49:58 +00:00
dillon
8b297fc8f8 There was a situation where sendfile() might attempt to initiate I/O
on a PG_BUSY page, due to a bug in its sequencing of a conditional.
1999-01-24 01:15:58 +00:00
dillon
6db82357ca Don't try to calculate B_CACHE for an NFS related bp that has a
> 0 b_validend.  This will screw up small-writes, causing lots of
    little writes out the network.

    We will assume that NFS handles B_CACHE properly.
1999-01-24 00:51:11 +00:00
dillon
fcfddd9dee Fix an expression parenthesization typo in a conditional. It should not
have any operational effects other then to make the code in question
     a little faster.  Also added a more involved comment.
1999-01-23 06:36:15 +00:00
peter
97e2cc89ef Update userref handling after discussion with submitter of previous
patch.  lf can't be dereferenced after the unload attempt, in case it
was freed.  Instead, decrement first and back it out if the unload failed.
This should be relatively immune to races caused by the user since the
userref count will be zero for the duration of the actual unloading and
will stop further kldunload attempts.

Submitted by:   Ustimenko Semen <semen@iclub.nsu.ru>
1999-01-23 03:45:22 +00:00
dg
e4e8fec98a Don't throw away the buffer contents on a fatal write error; just mark
the buffer as still being dirty. This isn't a perfect solution, but
throwing away the buffer contents will often result in filesystem
corruption and this solution will at least correctly deal with transient
errors.
Submitted by:	Kirk McKusick <mckusick@mckusick.com>
1999-01-22 08:59:05 +00:00
msmith
b8598e583e Allow VM_KMEM_SIZE to be tuned from the kernel environment. This tuning
value *completely* overrides any value precalculated by the kernel.
1999-01-21 21:54:32 +00:00
dillon
6bd52e6f4b The main operational changes are in getblk()'s handling of the
B_DELWRI and B_CACHE flags, fixing a bug that showed up with NFS.
    Also, a number of cases where manually inserted code has been removed
    and replaced with an inline function call giving us better functional
    isolation in the source.
1999-01-21 09:19:33 +00:00
dillon
b90a2bf706 The code that reclaims descriptors from in-transit unix domain
descriptor-passing messages was calling sorflush() without checking
    to see if the descriptor was actually a socket.  This can cause a
    crash by exiting programs that use the mechanism under certain
    circumstances.
1999-01-21 09:02:18 +00:00
dillon
1cb49fc563 Fixed a potential bug ( but maybe not ), where sendfile() clears PG_BUSY
on a page without testing for waiters.  Also collapsed busy wait into
    new vm_page_sleep_busy() inline ( see vm/vm_page.h )
1999-01-21 09:00:26 +00:00
dillon
ed80311739 This module was used only by the old swapper and has been #if'd out,
and will be eventually removed if no other use is found for it.
1999-01-21 08:58:41 +00:00
dillon
df24433bbe This is a rather large commit that encompasses the new swapper,
changes to the VM system to support the new swapper, VM bug
    fixes, several VM optimizations, and some additional revamping of the
    VM code.  The specific bug fixes will be documented with additional
    forced commits.  This commit is somewhat rough in regards to code
    cleanup issues.

Reviewed by:	"John S. Dyson" <root@dyson.iquest.net>, "David Greenman" <dg@root.com>
1999-01-21 08:29:12 +00:00
dillon
bae5debf72 Add new blist module - radix tree based bitmap allocator with
size hinting.  Will be used by the new swapper.
1999-01-21 08:11:06 +00:00
julian
85161a4534 Minor rearranging of code to allow simple protocol domains to be
added as KLDs.
1999-01-21 00:26:41 +00:00
fenner
46541593cd Also consider the space left in the socket buffer when deciding whether
to set PRUS_MORETOCOME.
1999-01-20 17:45:22 +00:00
fenner
505f7489c7 Add a flag, passed to pru_send routines, PRUS_MORETOCOME. This
flag means that there is more data to be put into the socket buffer.
Use it in TCP to reduce the interaction between mbuf sizes and the
Nagle algorithm.

Based on:	"Justin C. Walker" <justin@apple.com>'s description of Apple's
		fix for this problem.
1999-01-20 17:32:01 +00:00
eivind
836035a4ed Add 'options DEBUG_LOCKS', which stores extra information in struct
lock, and add some macros and function parameters to make sure that
the information get to the point where it can be put in the lock
structure.

While I'm here, add DEBUG_VFS_LOCKS to LINT.
1999-01-20 14:49:12 +00:00
jkh
32fdb77df9 Make more messages conditional on bootverbose 1999-01-20 04:24:22 +00:00
peter
0f233bf555 Relax linkage symbol scope restrictions to be more compatable with that
of shared libraries.
1999-01-19 22:26:46 +00:00
peter
3e5ec8fe1c Don't decrement userrefs unless the file was actually was unloaded.
Submitted by:	Ustimenko Semen <semen@iclub.nsu.ru>
1999-01-19 16:26:32 +00:00
dillon
475c80e993 Obtained from: Luoqi
Fix NFS file corruption problem introduced in 1.188.  The valid range
    was not being set properly, causing a later reference to the buffer
    to clear the B_CACHE bit.
1999-01-19 08:00:51 +00:00
peter
f507f3d7b0 - Move lkmnosys() to kern_syscall.c
- Have the VFS lkm support use vfs_register() etc rather than having it's
  own version.
- Have the syscall lkm support use syscall_register() etc rather than
  having it's own verison.
- Convert the lkm driver to a module.
1999-01-17 19:00:58 +00:00
peter
a3844a9916 Move lkmnosys() from kern_lkm.c to here. 1999-01-17 18:58:04 +00:00
peter
66afdef469 Try and clean up the multiple formal loading support a bit, based on
suggestions from Greg Lehey some time ago.  In the face of multiple
potential file formats, try and give a more sensible error than just
ENOEXEC.

XXX a good case can be made that the loading process is wrong - the linker
should locate the file first (using the search paths etc), then run the
loaders to see if they recognize it.  While the present system allows for
the possibility of different search paths for different formats, we do not
use it and it just makes things more complicated than they need to be.
1999-01-17 17:58:52 +00:00