CVS log for src/sys/compat/common/vfs_syscalls_43.c

Up to [cvs.NetBSD.org] / src / sys / compat / common

Request diff between arbitrary revisions

Keyword substitution: kv
Default branch: MAIN

Pull up following revision(s) (requested by riastradh in ticket #1836):

	sys/compat/linux/arch/i386/linux_machdep.c: revision 1.168
	sys/compat/sunos/sunos_misc.c: revision 1.177
	sys/compat/netbsd32/netbsd32_compat_50.c: revision 1.52
	sys/compat/common/kern_resource_43.c: revision 1.23
	sys/compat/netbsd32/netbsd32_conv.h: revision 1.46
	sys/compat/linux/arch/i386/linux_ptrace.c: revision 1.35
	sys/compat/common/vfs_syscalls_12.c: revision 1.38
	sys/compat/ultrix/ultrix_misc.c: revision 1.126
	sys/compat/common/kern_sig_43.c: revision 1.37
	sys/compat/linux/common/linux_mtio.c: revision 1.8
	sys/compat/freebsd/freebsd_misc.c: revision 1.34
	sys/compat/linux/common/linux_olduname.c: revision 1.67
	sys/compat/linux/arch/mips/linux_machdep.c: revision 1.44
	sys/compat/freebsd/freebsd_sched.c: revision 1.23
	sys/compat/ossaudio/ossaudio.c: revision 1.84
	sys/compat/sys/time_types.h: revision 1.6
	sys/compat/linux/arch/powerpc/linux_machdep.c: revision 1.51
	sys/compat/linux/common/linux_file.c: revision 1.119
	sys/compat/linux/arch/arm/linux_machdep.c: revision 1.34
	sys/compat/netbsd32/netbsd32_wait.c: revision 1.25
	sys/compat/linux32/common/linux32_time.c: revision 1.38
	sys/compat/linux/arch/powerpc/linux_ptrace.c: revision 1.33
	sys/compat/linux/arch/alpha/linux_machdep.c: revision 1.52
	sys/compat/linux32/arch/amd64/linux32_machdep.c: revision 1.46
	sys/compat/netbsd32/netbsd32_compat_12.c: revision 1.36
	sys/compat/ultrix/ultrix_ioctl.c: revision 1.39
	sys/compat/linux/common/linux_misc.c: revision 1.252
	sys/compat/linux/common/linux_hdio.c: revision 1.19
	sys/compat/sunos/sunos_ioctl.c: revision 1.71
	sys/compat/linux/common/linux_sched.c: revision 1.79
	sys/compat/common/kern_info_43.c: revision 1.40
	sys/compat/linux32/common/linux32_exec_elf32.c: revision 1.20
	sys/compat/linux/common/linux_socket.c: revision 1.153
	sys/compat/linux/arch/amd64/linux_machdep.c: revision 1.60
	sys/compat/common/vfs_syscalls_43.c: revision 1.68
	sys/compat/linux/arch/powerpc/linux_exec_powerpc.c: revision 1.25
	sys/compat/netbsd32/netbsd32_ptrace.c: revision 1.9
	sys/compat/common/kern_time_50.c: revision 1.37
	sys/compat/netbsd32/netbsd32_compat_20.c: revision 1.42
	sys/compat/linux/common/linux_cdrom.c: revision 1.28
	sys/compat/linux/arch/m68k/linux_machdep.c: revision 1.43
	sys/compat/common/kern_info_09.c: revision 1.22
	sys/compat/linux32/common/linux32_resource.c: revision 1.12
	sys/compat/linux/common/linux_oldolduname.c: revision 1.67
	sys/compat/netbsd32/netbsd32_nfssvc.c: revision 1.8
	sys/compat/linux32/common/linux32_signal.c: revision 1.21
	sys/compat/common/kern_sig_13.c: revision 1.22
	sys/compat/sunos32/sunos32_ioctl.c: revision 1.36
	sys/compat/netbsd32/netbsd32_compat_43.c: revision 1.62
	sys/compat/linux/arch/arm/linux_ptrace.c: revision 1.23
	sys/compat/netbsd32/netbsd32_time.c: revision 1.56
	sys/compat/linux/common/linux_signal.c: revision 1.84
	sys/compat/netbsd32/netbsd32_signal.c: revision 1.52
	sys/compat/sunos32/sunos32_misc.c: revision 1.85
	sys/compat/linux/common/linux_time.c: revision 1.40
	sys/compat/linux/common/linux_fdio.c: revision 1.14
	sys/compat/common/vfs_syscalls_30.c: revision 1.43

sys/compat: Memset zero before copyout.

Just in case of uninitialized padding which would lead to kernel
stack disclosure.  If the compiler can prove the memset redundant
then it can optimize it away; otherwise better safe than sorry.

Pull up following revision(s), all via patch
(requested by riastradh in ticket #1487):

	sys/compat/linux/arch/i386/linux_machdep.c: revision 1.168
	sys/compat/sunos/sunos_misc.c: revision 1.177
	sys/compat/netbsd32/netbsd32_compat_50.c: revision 1.52
	sys/compat/common/kern_resource_43.c: revision 1.23
	sys/compat/netbsd32/netbsd32_conv.h: revision 1.46
	sys/compat/linux/arch/i386/linux_ptrace.c: revision 1.35
	sys/compat/common/vfs_syscalls_12.c: revision 1.38
	sys/compat/ultrix/ultrix_misc.c: revision 1.126
	sys/compat/common/kern_sig_43.c: revision 1.37
	sys/compat/linux/common/linux_mtio.c: revision 1.8
	sys/compat/freebsd/freebsd_misc.c: revision 1.34
	sys/compat/freebsd/freebsd_machdep.c: revision 1.5
	sys/compat/linux/common/linux_olduname.c: revision 1.67
	sys/compat/linux/arch/mips/linux_machdep.c: revision 1.44
	sys/compat/freebsd/freebsd_sched.c: revision 1.23
	sys/compat/ossaudio/ossaudio.c: revision 1.84
	sys/compat/sys/time_types.h: revision 1.6
	sys/compat/linux/arch/powerpc/linux_machdep.c: revision 1.51
	sys/compat/common/ieee80211_20.c: revision 1.7
	sys/compat/linux/common/linux_file.c: revision 1.119
	sys/compat/linux/arch/arm/linux_machdep.c: revision 1.34
	sys/compat/netbsd32/netbsd32_wait.c: revision 1.25
	sys/compat/linux32/common/linux32_time.c: revision 1.38
	sys/compat/linux/arch/powerpc/linux_ptrace.c: revision 1.33
	sys/compat/linux/arch/alpha/linux_machdep.c: revision 1.52
	sys/compat/linux32/arch/amd64/linux32_machdep.c: revision 1.46
	sys/compat/netbsd32/netbsd32_compat_12.c: revision 1.36
	sys/compat/ultrix/ultrix_ioctl.c: revision 1.39
	sys/compat/linux/common/linux_misc.c: revision 1.252
	sys/compat/linux/common/linux_hdio.c: revision 1.19
	sys/compat/sunos/sunos_ioctl.c: revision 1.71
	sys/compat/linux/common/linux_sched.c: revision 1.79
	sys/compat/common/kern_info_43.c: revision 1.40
	sys/compat/linux32/common/linux32_exec_elf32.c: revision 1.20
	sys/compat/linux/common/linux_socket.c: revision 1.153
	sys/compat/linux/arch/amd64/linux_machdep.c: revision 1.60
	sys/compat/common/vfs_syscalls_43.c: revision 1.68
	sys/compat/linux/arch/powerpc/linux_exec_powerpc.c: revision 1.25
	sys/compat/netbsd32/netbsd32_ptrace.c: revision 1.9
	sys/compat/common/kern_time_50.c: revision 1.37
	sys/compat/netbsd32/netbsd32_compat_20.c: revision 1.42
	sys/compat/linux/common/linux_cdrom.c: revision 1.28
	sys/compat/linux/arch/m68k/linux_machdep.c: revision 1.43
	sys/compat/common/kern_info_09.c: revision 1.22
	sys/compat/linux32/common/linux32_resource.c: revision 1.12
	sys/compat/linux/common/linux_oldolduname.c: revision 1.67
	sys/compat/common/if_media_80.c: revision 1.4
	sys/compat/linux/arch/alpha/linux_osf1.c: revision 1.5
	sys/compat/netbsd32/netbsd32_nfssvc.c: revision 1.8
	sys/compat/linux32/common/linux32_signal.c: revision 1.21
	sys/compat/common/kern_sig_13.c: revision 1.22
	sys/compat/sunos32/sunos32_ioctl.c: revision 1.36
	sys/compat/netbsd32/netbsd32_compat_43.c: revision 1.62
	sys/compat/linux/arch/arm/linux_ptrace.c: revision 1.23
	sys/compat/netbsd32/netbsd32_time.c: revision 1.56
	sys/compat/linux/common/linux_signal.c: revision 1.84
	sys/compat/netbsd32/netbsd32_signal.c: revision 1.52
	sys/compat/sunos32/sunos32_misc.c: revision 1.85
	sys/compat/linux/common/linux_time.c: revision 1.40
	sys/compat/linux/common/linux_fdio.c: revision 1.14
	sys/compat/common/vfs_syscalls_30.c: revision 1.43

sys/compat: Memset zero before copyout.

Just in case of uninitialized padding which would lead to kernel
stack disclosure.  If the compiler can prove the memset redundant
then it can optimize it away; otherwise better safe than sorry.

sys/compat: Memset zero before copyout.

Just in case of uninitialized padding which would lead to kernel
stack disclosure.  If the compiler can prove the memset redundant
then it can optimize it away; otherwise better safe than sorry.

Pull up following revision(s) (requested by christos in ticket #1691):

	sys/compat/common/vfs_syscalls_43.c: revision 1.67
	sys/compat/common/vfs_syscalls_50.c: revision 1.26
	sys/compat/common/vfs_syscalls_30.c: revision 1.42

- memset struct stat to avoid kernel memory disclosure of padded fields
  (thanks Trend Micro for the report)
- use do_fhstat
- consistency in argument order of compat functions

Pull up following revision(s) (requested by christos in ticket #1337):

	sys/compat/common/vfs_syscalls_43.c: revision 1.67
	sys/compat/common/vfs_syscalls_50.c: revision 1.26
	sys/compat/common/vfs_syscalls_30.c: revision 1.42

- memset struct stat to avoid kernel memory disclosure of padded fields
  (thanks Trend Micro for the report)
- use do_fhstat
- consistency in argument order of compat functions

- memset struct stat to avoid kernel memory disclosure of padded fields
  (thanks Trend Micro for the report)
- use do_fhstat
- consistency in argument order of compat functions

remove special handling for symbolic links for COMPAT_43 lstat, it's
not necessary; this removes the only places in kernel which did namei
LOOKUP with LOCKPARENT

fixes diagnostic KASSERT() in namei() code

Reported-by: syzbot+628382ecf1438e53d08d@syzkaller.appspotmail.com

Merge changes from current as of 20200406

Sync with head.

Pull up following revision(s) (requested by pgoyette in ticket #741):

	sys/compat/common/vfs_syscalls_43.c: revision 1.65

Include all of the vfs syscalls in the syscall_package, not just oquota.
Should fix PR kern/55025

XXX pullup-9

Include all of the vfs syscalls in the syscall_package, not just oquota.

Should fix PR kern/55025

XXX pullup-9

Sync with HEAD

Merge the [pgoyette-compat] branch

Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int.  The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER!  Some subsystems have

	#define min(a, b)	((a) < (b) ? (a) : (b))
	#define max(a, b)	((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX.  Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate.  But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all.  (Who knows, maybe in some cases integer
truncation is actually intended!)

Finish separating the compat_09 and compat_43 stuff

First pass at compat modules for 4.3BSD, NetBSD-0.9, and NetBSD-1.0

XXX Still need to deal with the sysctl stuff and other code shared
XXX between 09 and 43

Only need to #include sysctl.h once

Pull up following revision(s) (requested by christos in ticket #418):
	sys/compat/common/vfs_syscalls_12.c: revision 1.35
	sys/compat/common/vfs_syscalls_43.c: revision 1.62
Make code look the same, in particular zero out the rest of the directory
record.

Make code look the same, in particular zero out the rest of the directory
record.
XXX: pullup-8

update from HEAD

Sync with HEAD

Pull up following revision(s) (requested by mrg in ticket #1483):
	sys/compat/common/vfs_syscalls_12.c: revision 1.34
	sys/compat/svr4_32/svr4_32_misc.c: revision 1.78
	sys/compat/sunos32/sunos32_misc.c: revision 1.78
	sys/compat/linux/common/linux_misc.c: revision 1.239
	sys/compat/osf1/osf1_file.c: revision 1.44
	sys/compat/common/vfs_syscalls_43.c: revision 1.60
	sys/compat/svr4/svr4_misc.c: revision 1.158
	sys/compat/ibcs2/ibcs2_misc.c: revision 1.114
	sys/compat/linux/common/linux_file64.c: revision 1.59
	sys/compat/linux32/common/linux32_dirent.c: revision 1.18
	sys/compat/sunos/sunos_misc.c: revision 1.171
Fail, don't panic, on bad dirents from file system.
Controllable via puffs from userland.
From Ilja Van Sprundel.

Pull up following revision(s) (requested by mrg in ticket #1483):
	sys/compat/common/vfs_syscalls_12.c: revision 1.34
	sys/compat/svr4_32/svr4_32_misc.c: revision 1.78
	sys/compat/sunos32/sunos32_misc.c: revision 1.78
	sys/compat/linux/common/linux_misc.c: revision 1.239
	sys/compat/osf1/osf1_file.c: revision 1.44
	sys/compat/common/vfs_syscalls_43.c: revision 1.60
	sys/compat/svr4/svr4_misc.c: revision 1.158
	sys/compat/ibcs2/ibcs2_misc.c: revision 1.114
	sys/compat/linux/common/linux_file64.c: revision 1.59
	sys/compat/linux32/common/linux32_dirent.c: revision 1.18
	sys/compat/sunos/sunos_misc.c: revision 1.171
Fail, don't panic, on bad dirents from file system.
Controllable via puffs from userland.
From Ilja Van Sprundel.

Pull up following revision(s) (requested by mrg in ticket #1483):
	sys/compat/common/vfs_syscalls_12.c: revision 1.34
	sys/compat/svr4_32/svr4_32_misc.c: revision 1.78
	sys/compat/sunos32/sunos32_misc.c: revision 1.78
	sys/compat/linux/common/linux_misc.c: revision 1.239
	sys/compat/osf1/osf1_file.c: revision 1.44
	sys/compat/common/vfs_syscalls_43.c: revision 1.60
	sys/compat/svr4/svr4_misc.c: revision 1.158
	sys/compat/ibcs2/ibcs2_misc.c: revision 1.114
	sys/compat/linux/common/linux_file64.c: revision 1.59
	sys/compat/linux32/common/linux32_dirent.c: revision 1.18
	sys/compat/sunos/sunos_misc.c: revision 1.171
Fail, don't panic, on bad dirents from file system.
Controllable via puffs from userland.
From Ilja Van Sprundel.

Pull up following revision(s) (requested by mrg in ticket #1469):
	sys/compat/common/vfs_syscalls_12.c: revision 1.30
	sys/compat/common/vfs_syscalls_43.c: revision 1.56
	sys/compat/sys/dirent.h: revision 1.3
It is wishful thinking that vn_readdir will return dirent12 structures.
--
Fix the compat-4.3 getdirentries call (pre d_type). This is used in NetBSD-0.9.
--
add a struct for the 4.3BSD struct direct

Pull up following revision(s) (requested by mrg in ticket #1469):
	sys/compat/common/vfs_syscalls_12.c: revision 1.30
	sys/compat/common/vfs_syscalls_43.c: revision 1.56
	sys/compat/sys/dirent.h: revision 1.3
It is wishful thinking that vn_readdir will return dirent12 structures.
--
Fix the compat-4.3 getdirentries call (pre d_type). This is used in NetBSD-0.9.
--
add a struct for the 4.3BSD struct direct

Pull up following revision(s) (requested by mrg in ticket #1469):
	sys/compat/common/vfs_syscalls_12.c: revision 1.30
	sys/compat/common/vfs_syscalls_43.c: revision 1.56
	sys/compat/sys/dirent.h: revision 1.3
It is wishful thinking that vn_readdir will return dirent12 structures.
--
Fix the compat-4.3 getdirentries call (pre d_type). This is used in NetBSD-0.9.
--
add a struct for the 4.3BSD struct direct

Pull up following revision(s) (requested by mrg in ticket #1479):
	sys/compat/common/vfs_syscalls_12.c: revision 1.34
	sys/rump/kern/lib/libsys_sunos/rump_sunos_compat.c: revision 1.2
	sys/compat/svr4_32/svr4_32_misc.c: revision 1.78
	sys/compat/sunos32/sunos32_misc.c: revision 1.78
	sys/compat/linux/common/linux_misc.c: revision 1.239
	sys/compat/osf1/osf1_file.c: revision 1.44
	sys/compat/common/vfs_syscalls_43.c: revision 1.60
	sys/compat/svr4/svr4_misc.c: revision 1.158
	sys/compat/ibcs2/ibcs2_misc.c: revision 1.114
	sys/compat/linux/common/linux_file64.c: revision 1.59
	sys/compat/linux32/common/linux32_dirent.c: revision 1.18
	sys/compat/sunos/sunos_misc.c: revision 1.171
Fail, don't panic, on bad dirents from file system.
Controllable via puffs from userland.
From Ilja Van Sprundel.

Pull up following revision(s) (requested by mrg in ticket #1479):
	sys/compat/common/vfs_syscalls_12.c: revision 1.34
	sys/rump/kern/lib/libsys_sunos/rump_sunos_compat.c: revision 1.2
	sys/compat/svr4_32/svr4_32_misc.c: revision 1.78
	sys/compat/sunos32/sunos32_misc.c: revision 1.78
	sys/compat/linux/common/linux_misc.c: revision 1.239
	sys/compat/osf1/osf1_file.c: revision 1.44
	sys/compat/common/vfs_syscalls_43.c: revision 1.60
	sys/compat/svr4/svr4_misc.c: revision 1.158
	sys/compat/ibcs2/ibcs2_misc.c: revision 1.114
	sys/compat/linux/common/linux_file64.c: revision 1.59
	sys/compat/linux32/common/linux32_dirent.c: revision 1.18
	sys/compat/sunos/sunos_misc.c: revision 1.171
Fail, don't panic, on bad dirents from file system.
Controllable via puffs from userland.
From Ilja Van Sprundel.

Pull up following revision(s) (requested by mrg in ticket #1479):
	sys/compat/common/vfs_syscalls_12.c: revision 1.34
	sys/rump/kern/lib/libsys_sunos/rump_sunos_compat.c: revision 1.2
	sys/compat/svr4_32/svr4_32_misc.c: revision 1.78
	sys/compat/sunos32/sunos32_misc.c: revision 1.78
	sys/compat/linux/common/linux_misc.c: revision 1.239
	sys/compat/osf1/osf1_file.c: revision 1.44
	sys/compat/common/vfs_syscalls_43.c: revision 1.60
	sys/compat/svr4/svr4_misc.c: revision 1.158
	sys/compat/ibcs2/ibcs2_misc.c: revision 1.114
	sys/compat/linux/common/linux_file64.c: revision 1.59
	sys/compat/linux32/common/linux32_dirent.c: revision 1.18
	sys/compat/sunos/sunos_misc.c: revision 1.171
Fail, don't panic, on bad dirents from file system.
Controllable via puffs from userland.
From Ilja Van Sprundel.

Pull up following revision(s) (requested by spz in ticket #193):
	sys/compat/common/vfs_syscalls_12.c: revision 1.34
	sys/rump/kern/lib/libsys_sunos/rump_sunos_compat.c: revision 1.2
	sys/compat/svr4_32/svr4_32_misc.c: revision 1.78
	sys/compat/sunos32/sunos32_misc.c: revision 1.78
	sys/compat/linux/common/linux_misc.c: revision 1.239
	sys/compat/osf1/osf1_file.c: revision 1.44
	sys/compat/common/vfs_syscalls_43.c: revision 1.60
	sys/compat/svr4/svr4_misc.c: revision 1.158
	sys/compat/ibcs2/ibcs2_misc.c: revision 1.114
	sys/compat/linux/common/linux_file64.c: revision 1.59
	sys/compat/linux32/common/linux32_dirent.c: revision 1.18
	sys/compat/sunos/sunos_misc.c: revision 1.171
Fail, don't panic, on bad dirents from file system.
Controllable via puffs from userland.
From Ilja Van Sprundel.

Declare mountcompatnames in sys/vfs_syscalls.h to kill nested extern.

Fail, don't panic, on bad dirents from file system.

Controllable via puffs from userland.

From Ilja Van Sprundel.

Sync with HEAD

Sync with HEAD

convert strcpy to a bounded copy to avoid compiler warnings, although the
reclen test prevents overflow.

Sync with HEAD

Pull up following revision(s) (requested by mrg in ticket #1240):
	sys/compat/common/vfs_syscalls_43.c: revision 1.58
fill in the tv_nsec parts of the converted timespec in cvtstat().

Pull up following revision(s) (requested by mrg in ticket #1240):
	sys/compat/common/vfs_syscalls_43.c: revision 1.58
fill in the tv_nsec parts of the converted timespec in cvtstat().

Pull up following revision(s) (requested by mrg in ticket #1400):
	sys/compat/common/vfs_syscalls_43.c: revision 1.58
fill in the tv_nsec parts of the converted timespec in cvtstat().

Pull up following revision(s) (requested by mrg in ticket #1400):
	sys/compat/common/vfs_syscalls_43.c: revision 1.58
fill in the tv_nsec parts of the converted timespec in cvtstat().

Pull up following revision(s) (requested by mrg in ticket #1400):
	sys/compat/common/vfs_syscalls_43.c: revision 1.58
fill in the tv_nsec parts of the converted timespec in cvtstat().

fill in the tv_nsec parts of the converted timespec in cvtstat().

Try not to use f_data, use f_{vnode,socket,pipe,mqueue,kqueue,ksem} to get
a correctly typed pointer.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

Fix the compat-4.3 getdirentries call (pre d_type). This is used in NetBSD-0.9.

Pull up following revision(s) (requested by pgoyette in ticket #837):
	sys/compat/common/kern_time_50.c: revision 1.25
	sys/kern/init_sysctl.c: revision 1.195
	sys/kern/init_main.c: revision 1.447
	sys/compat/common/compat_util.h: revision 1.23
	sys/compat/common/compat_mod.h: revision 1.1
	sys/compat/common/compat_mod.c: revision 1.16
	sys/compat/common/compat_mod.c: revision 1.17
	sys/compat/common/compat_mod.c: revision 1.18
	sys/compat/common/vfs_syscalls_43.c: revision 1.55
Move boottime50 and its associated sysctl into the compat module.  As
noted on tech-kern.  Should fix PR/47579.
OK christos@
Will request pull-up to 6.0 in a few days.
Wrap sysctl_teardown(&compat_clog) with the appropriate #if defined()s
remove empty #if

resync with head

Move boottime50 and its associated sysctl into the compat module.  As
noted on tech-kern.  Should fix PR/47579.

OK christos@

Will request pull-up to 6.0 in a few days.

sync with head

Introduce struct pathbuf. This is an abstraction to hold a pathname
and the metadata required to interpret it. Callers of namei must now
create a pathbuf and pass it to NDINIT (instead of a string and a
uio_seg), then destroy the pathbuf after the namei session is
complete.

Update all namei call sites accordingly. Add a pathbuf(9) man page and
update namei(9).

The pathbuf interface also now appears in a couple of related
additional places that were passing string/uio_seg pairs that were
later fed into NDINIT. Update other call sites accordingly.

Sync with HEAD.

sync with head.

sync with head

Clean up vnode lock operations pass 2:

VOP_UNLOCK(vp, flags) -> VOP_UNLOCK(vp): Remove the unneeded flags argument.

Welcome to 5.99.32.

Discussed on tech-kern.

Sync with HEAD.

sync with head

fs_union.h is not used here anymore ... diudau

The VATTR_NULL/VREF/VHOLD/HOLDRELE() macros lost their will to live
years ago when the kernel was modified to not alter ABI based on
DIAGNOSTIC, and now just call the respective function interfaces
(in lowercase).  Plenty of mix'n match upper/lowercase has creeped
into the tree since then.  Nuke the macros and convert all callsites
to lowercase.

no functional change

Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.

sync with head.

Sync with HEAD.

Add #include "opt_compat_netbsd.h" for COMPAT_09.

Sync with HEAD.

Make all fstat(2) compat syscalls consistently use do_sys_fstat(),
instead of fd_getfile()/fd_putfile() dance.

ok by christos.

Sync with HEAD.

Sync with HEAD.

Update haad-dm branch to haad-dm-base2.

Make the emulations, exec formats, coredump, NFS, and the NFS server
into modules. By and large this commit:

- shuffles header files and ifdefs
- splits code out where necessary to be modular
- adds module glue for each of the components
- adds/replaces hooks for things that can be installed at runtime

Sync with wrstuden-revivesa-base-2.

Sync with HEAD.

Sync with head.

Replace references to getsock/getvnode.

Per discussion with ad, remove most of the #include <sys/sa.h> lines
as they were including sa.h just for the type(s) needed for syscallargs.h.

Instead, create a new file, sys/satypes.h, which contains just the
types needed for syscallargs.h. Yes, there's only one now, but that
may change and it's probably more likely to change if it'd be difficult
to handle. :-)

Per discussion with matt at n dot o, add an include of satypes.h to
sigtypes.h. Upcall handlers are kinda signal handlers, and signalling
is the header file that's already included for syscallargs.h that
closest matches SA.

This shaves about 3000 lines off of the diff of the branch relative
to the base. That also represents about 18% of the total before this
checkin.

I think this reduction is very good thing.

Initial checkin of re-adding SA. Everything except kern_sa.c
compiles in GENERIC for i386. This is still a work-in-progress, but
this checkin covers most of the mechanical work (changing signalling
to be able to accomidate SA's process-wide signalling and re-adding
includes of sys/sa.h and savar.h). Subsequent changes will be much
more interesting.

Also, kern_sa.c has received partial cleanup. There's still more
to do, though.

Sync with HEAD.

sync with head.

Catch up with descriptor handling changes. See kern_descrip.c revision
1.173 for details.

sync with head

sync with HEAD

Sync with HEAD

Sync with HEAD.

Sync with head.

Convert all the system call entry points from:
    int foo(struct lwp *l, void *v, register_t *retval)
to:
    int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code to not write into 'uap' and (in some cases) to actually
pass a correctly formatted 'uap' structure with the right name to the
next routine.
A few 'compat' routines that just call standard ones have been deleted.
All the 'compat' code compiles (along with the kernels required to test
build it).
98% done by automated scripts.

Sync with HEAD.

Remove cn_lwp from struct componentname.  curlwp should be used
from on.  The NDINIT() macro no longer takes the lwp parameter and
associates the credentials of the calling thread with the namei
structure.

ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...

Sync with HEAD.

Sync with head.

sync with head

Remove all the __P

Sync with HEAD. amd64 Xen support needs testing.

Remove the "struct lwp *" argument from all VFS and VOP interfaces.
The general trend is to remove it from all kernel interfaces and
this is a start.  In case the calling lwp is desired, curlwp should
be used.

quick consensus on tech-kern

sync with HEAD

sync with head.

Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.

sync with head.

Merge from vmlocking:

- Split vnode::v_flag into three fields, depending on field locking.
- simple_lock -> kmutex in a few places.
- Fix some simple locking problems.

sync with head.

Sync with HEAD.

MFSNAMELEN only belongs in compat.

Sync with head.

- Increase the number of thread priorities from 128 to 256. How the space
  is set up is to be revisited.
- Implement soft interrupts as kernel threads. A generic implementation
  is provided, with hooks for fast-path MD code that can run the interrupt
  threads over the top of other threads executing in the kernel.
- Split vnode::v_flag into three fields, depending on how the flag is
  locked (by the interlock, by the vnode lock, by the file system).
- Miscellaneous locking fixes and improvements.

Sync with head.

- Pass the error number and residual count to biodone(), and let it handle
  setting error indicators. Prepare to eliminate B_ERROR.
- Add a flag argument to brelse() to be set into the buf's flags, instead
  of doing it directly. Typically used to set B_INVAL.
- Add a "struct cpu_info *" argument to kthread_create(), to be used to
  create bound threads. Change "bool mpsafe" to "int flags".
- Allow exit of LWPs in the IDL state when (l != curlwp).
- More locking fixes & conversion to the new API.

sync with head.

Change the way that emulations locate files within the emulation root to
  avoid having to allocate space in the 'stackgap'
  - which is very LWP unfriendly.
The additional code for non-emulation namei() is trivial, the reduction for
  the emulations is massive.
The vnode for a processes emulation root is saved in the cwdi structure
  during process exec.
If the emulation root the TRYEMULROOT flag are set, namei() will do an initial
  search for absolute pathnames in the emulation root, if that fails it will
  retry from the normal root.
".." at the emulation root will always go to the real root, even in the middle
  of paths and when expanding symlinks.
Absolute symlinks found using absolute paths in the emulation root will be
  relative to the emulation root (so /usr/lib/xxx.so -> /lib/xxx.so links
  inside the emulation root don't need changing).
If the root of the emulation would be returned (for an emulation lookup), then
  the real root is returned instead (matching the behaviour of emul_lookup,
  but being a cheap comparison here) so that programs that scan "../.."
  looking for the root dircetory don't loop forever.
The target for symbolic links is no longer mangled (it used to get the
  CHECK_ALT_xxx() treatment, so could get /emul/xxx prepended).
CHECK_ALT_xxx() are no more. Most of the change is deleting them, and adding
  TRYEMULROOT to the flags to NDINIT().
A lot of the emulation system call stubs could now be deleted.

Sync with HEAD.

Use the support routines from kern_syscalls.c instead of rolling our own code.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

sync with head.

Merge newlock2 to head.

Remove support for SA. Ok core@.

sync with head.

sync with head.

Sync with head.

__unused removal on arguments; approved by core.

sync with head

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

sync with head

sync with head.

Sync with head.

merge yamt-uio_vmspace branch.

- use vmspace rather than proc or lwp where appropriate.
  the latter is more natural to specify an address space.
  (and less likely to be abused for random purposes.)
- fix a swdmover race.

adapt some random parts of kernel to uio_vmspace.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

compat code reorg.

sync with -current

sync with head.  xen and whitespace.  xen part is not finished.

Sync with HEAD.

Hi Perry!

nuke trailing whitespace

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD.

Fixing age old cruft:
* Rather than using mnt_maxsymlinklen to indicate that a file systems returns
  d_type fields(!), add a new internal flag, IMNT_DTYPE.

Add 3 new elements to ufsmount:
* um_maxsymlinklen, replaces mnt_maxsymlinklen (which never should have existed
  in the first place).
* um_dirblksiz, which tracks the current directory block size, eliminating the
  FS-specific checks littered throughout the code.  This may be used later to
  make the block size variable.
* um_maxfilesize, which is the maximum file size, possibly adjusted lower due
  to implementation issues.

Sync some bug fixes from FFS into ext2fs, particularly:
* ffs_lookup.c 1.21, 1.28, 1.33, 1.48
* ffs_inode.c 1.43, 1.44, 1.45, 1.66, 1.67
* ffs_vnops.c 1.84, 1.85, 1.86

Clean up some crappy pointer frobnication.

Sync with HEAD

- don't use MALLOC for non constant counts
- check malloc() size.

Don't include malloc.h if you are not going to use it.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

Apply the aborted ktrace-lwp changes to a specific branch.  This is just for
others to review, I'm concerned that patch fuziness may have resulted in some
errant code being generated but I'll look at that later by comparing the diff
from the base to the branch with the file I attempt to apply to it.  This will,
at the very least, put the changes in a better context for others to review
them and attempt to tinker with removing passing of 'struct lwp' through
the kernel.

Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

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

Merge the nathanw_sa branch.

Sync with HEAD.

Avoid strict-alias warnings.

No longer need to pull in lwp.h; proc.h pulls it in for us.

#include <sys/sa.h> before <sys/syscallargs.h>, to provide sa_upcall_t
now that <sys/param.h> doesn't include <sys/sa.h>.

(Behold the Power of Ed)

Sync kqueue branch with -current.

Catch up to -current.

add RCSIDs (including regeneration of files as appropriate)

Various changes to make cloning devices possible:

	* Add an extra argument (struct vnode **) to VOP_OPEN. If it is
	  not NULL, specfs will create a cloned (aliased) vnode during
	  the call, and return it there. The caller should release and
	  unlock the original vnode if a new vnode was returned. The
	  new vnode is returned locked.

	* Add a flag field to the cdevsw and bdevsw structures.
	  DF_CLONING indicates that it wants a new vnode for each
	  open (XXX is there a better way? devprop?)

	* If a device is cloning, always call the close entry
	  point for a VOP_CLOSE.


Also, rewrite cons.c to do the right thing with vnodes. Use VOPs
rather then direct device entry calls. Suggested by mycroft@

Light to moderate testing done an i386 system (arch doesn't matter
though, these are MI changes).

Catch up to -current.

Fix a partial construction problem that can cause race conditions
between creation of a file descriptor and close(2) when using kernel
assisted threads.  What we do is stick descriptors in the table, but
mark them as "larval".  This causes essentially everything to treat
it as a non-existent descriptor, except for fdalloc(), which sees a
filled slot so that it won't (incorrectly) allocate it again.  When
a descriptor is fully constructed, the code that has constructed it
marks it as "mature" (which actually clears the "larval" flag), and
things continue to work as normal.

While here, gather all the code that gets a descriptor from the table
into a fd_getfile() function, and call it, rather than having the
same (sometimes incorrect) code copied all over the place.

use _KERNEL_OPT.

Sync with HEAD

Change the first arg to fileops fo_stat routine to struct file *, adjust
callers and appropriate routines to cope. This makes fo_stat more
consistent with rest of fileops routines and also makes the fo_stat
match FreeBSD as an added bonus.
Discussed with Luke Mewburn on tech-kern@.

Catch up with -current.

Add new 'stat' fileop and call the stat function via f_ops rather
than directly.
For compat syscalls, also add necessary FILE_USE()/FILE_UNUSE().
Now that soo_stat() gets a proc arg, pass it on to usrreq function.

Initial commit of scheduler activations and lightweight process support.

Sync with HEAD.

LKMify

Update thorpej_scsipi to -current as of a month ago

lstat: since namei() returns an error (EISDIR) if there is no parent to lock,
retry the lookup without LOCKPARENT if that happens. This is safe, since
need to have LOCKPARENT only if the vnode is of type VLNK.

Kill register declarations.

Sync w/ -current.

Add "use counting" to file entries.  When closing a file, and it's reference
count is 0, wait for use count to drain before finishing the close.

This is necessary in order for multiple processes to safely share file
descriptor tables.

Explicitly mask mode returned in old stat structure to 16 bits. Also correct
comment (we're converting from a new to an old struct stat).

Merge with Lite2 + local changes

Include the UNION option header.

add stat12 compatibility calls and rename ostat to stat43

Update marc-pcmcia branch from trunk.

u_long -> off_t, I missed the big endian case. From Juergen Hannken-Illjes

Add getdirentries backward compat syscall. Provide common function to
signal cookie overflow during emulated getdents and friends.

PR/3701: Arne H. Juul: olstat can't stat "/", because it still pretended
that symlinks don't have inodes.

Fix compiler warnings

Prefix names of system call implementation functions with `sys_'.

Make system calls conform to a standard prototype and bring those
prototypes into scope.

- Extracted all compat routines from the kern directory and moved here.
- Created compat_util.c and compat_util.h to be used by the compatibility
  modules, so they don't duplicate the same code.
- Added prototypes to the stackgap allocation routines.