CVS log for src/sys/compat/linux/common/linux_fcntl.h

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Linux GSoC-2024: renameat2, clone3, sync_file_range, syncfs (Shivraj Jamgade)

new inotify support GSoC 2023 (Theodore Preduta)

Add memfd_create(2) from GSoC 2023 by Theodore Preduta

- Add compat_linux statx(2) syscall.
- The AT_EMPTY_PATH processing from the modification of
  sys/compat/linux/common/linux_file64.c r1.63 has been separated, and made
  common to linux_statat(), so that it can be used not only by
  linux32_sys_fstatat64() but also by other *statat() variants.

add support COMPAT_LINUX for aarch64

Mostly merge changes from HEAD upto 20200411

Pull up the following, requested by christos in ticket #1720:

	sys/compat/common/kern_sig_43.c				1.36
	sys/compat/linux/arch/amd64/linux_machdep.c		1.59
	sys/compat/linux/common/linux_fcntl.h			1.18
	sys/compat/linux/common/linux_file64.c			1.62
	sys/compat/linux/common/linux_ipc.c			1.57
	sys/compat/linux/common/linux_misc.c			1.243
	sys/compat/linux/common/linux_signal.c			1.81
	sys/compat/linux/common/linux_socket.c			1.149 (patch)
	sys/compat/linux/common/linux_socket.h			1.24
	sys/compat/linux/common/linux_statfs.h			1.7
	sys/compat/linux/common/linux_termios.c			1.38
	sys/compat/linux/common/linux_termios.h			1.22
	sys/compat/linux32/common/linux32_dirent.c		1.20
	sys/compat/linux32/common/linux32_ioctl.c		1.14
	sys/compat/linux32/common/linux32_misc.c		1.27
	sys/compat/linux32/common/linux32_signal.c		1.20
	sys/compat/linux32/common/linux32_sysinfo.c		1.8
	sys/compat/linux32/common/linux32_termios.c		1.15
	sys/compat/linux32/common/linux32_utsname.c		1.10
	sys/compat/netbsd32/netbsd32_compat_20.c		1.39
	sys/compat/netbsd32/netbsd32_compat_43.c		1.59
	sys/compat/netbsd32/netbsd32_compat_50.c		1.44
	sys/compat/ossaudio/ossaudio.c				1.75
	sys/kern/sysv_shm.c					1.138
	sys/miscfs/procfs/procfs_linux.c			1.75 (patch)
	sys/sys/shm.h						1.54 (patch)

Fix various info leaks, out of bound access, usage of uninitialized
values and direct access to userland variables from kernel space
and memory leaks in system calls implemented for the compatibility
subsystems.

Pull up the following, requested by christos in ticket #1720:

	sys/compat/common/kern_sig_43.c				1.36
	sys/compat/linux/arch/amd64/linux_machdep.c		1.59
	sys/compat/linux/common/linux_fcntl.h			1.18
	sys/compat/linux/common/linux_file64.c			1.62
	sys/compat/linux/common/linux_ipc.c			1.57
	sys/compat/linux/common/linux_misc.c			1.243
	sys/compat/linux/common/linux_signal.c			1.81
	sys/compat/linux/common/linux_socket.c			1.149 (patch)
	sys/compat/linux/common/linux_socket.h			1.24
	sys/compat/linux/common/linux_statfs.h			1.7
	sys/compat/linux/common/linux_termios.c			1.38
	sys/compat/linux/common/linux_termios.h			1.22
	sys/compat/linux32/common/linux32_dirent.c		1.20
	sys/compat/linux32/common/linux32_ioctl.c		1.14
	sys/compat/linux32/common/linux32_misc.c		1.27
	sys/compat/linux32/common/linux32_signal.c		1.20
	sys/compat/linux32/common/linux32_sysinfo.c		1.8
	sys/compat/linux32/common/linux32_termios.c		1.15
	sys/compat/linux32/common/linux32_utsname.c		1.10
	sys/compat/netbsd32/netbsd32_compat_20.c		1.39
	sys/compat/netbsd32/netbsd32_compat_43.c		1.59
	sys/compat/netbsd32/netbsd32_compat_50.c		1.44
	sys/compat/ossaudio/ossaudio.c				1.75
	sys/kern/sysv_shm.c					1.138
	sys/miscfs/procfs/procfs_linux.c			1.75 (patch)
	sys/sys/shm.h						1.54 (patch)

Fix various info leaks, out of bound access, usage of uninitialized
values and direct access to userland variables from kernel space
and memory leaks in system calls implemented for the compatibility
subsystems.

Pull up the following, requested by christos in ticket #1487:

	sys/compat/common/kern_sig_43.c				1.36
	sys/compat/linux/arch/amd64/linux_machdep.c		1.59
	sys/compat/linux/common/linux_fcntl.h			1.18
	sys/compat/linux/common/linux_file64.c			1.62
	sys/compat/linux/common/linux_ipc.c			1.57
	sys/compat/linux/common/linux_misc.c			1.243
	sys/compat/linux/common/linux_signal.c			1.81
	sys/compat/linux/common/linux_socket.c			1.149
	sys/compat/linux/common/linux_socket.h			1.24
	sys/compat/linux/common/linux_statfs.h			1.7
	sys/compat/linux/common/linux_termios.c			1.38
	sys/compat/linux/common/linux_termios.h			1.22
	sys/compat/linux32/common/linux32_dirent.c		1.20
	sys/compat/linux32/common/linux32_ioctl.c		1.14
	sys/compat/linux32/common/linux32_misc.c		1.27
	sys/compat/linux32/common/linux32_signal.c		1.20
	sys/compat/linux32/common/linux32_sysinfo.c		1.8
	sys/compat/linux32/common/linux32_termios.c		1.15
	sys/compat/linux32/common/linux32_utsname.c		1.10
	sys/compat/netbsd32/netbsd32_compat_20.c		1.39
	sys/compat/netbsd32/netbsd32_compat_43.c		1.59
	sys/compat/netbsd32/netbsd32_compat_50.c		1.44
	sys/compat/ossaudio/ossaudio.c				1.75
	sys/kern/sysv_shm.c					1.138
	sys/miscfs/procfs/procfs_linux.c			1.75 (patch)
	sys/sys/shm.h						1.54

Fix various info leaks, out of bound access, usage of uninitialized
values and direct access to userland variables from kernel space
and memory leaks in system calls implemented for the compatibility
subsystems.

Pull up following revision(s) (requested by maxv in ticket #194):

	sys/compat/linux/common/linux_socket.c: revision 1.146
	sys/compat/linux/common/linux_socket.c: revision 1.147
	sys/compat/linux/common/linux_socket.c: revision 1.148
	sys/compat/linux/common/linux_socket.c: revision 1.149
	sys/compat/linux/arch/amd64/linux_machdep.c: revision 1.59
	sys/compat/linux32/common/linux32_sysinfo.c: revision 1.8
	sys/kern/sysv_shm.c: revision 1.138
	sys/compat/linux/common/linux_file64.c: revision 1.61
	sys/compat/linux/common/linux_file64.c: revision 1.62
	sys/compat/netbsd32/netbsd32_compat_43.c: revision 1.58
	sys/compat/linux32/common/linux32_dirent.c: revision 1.20
	sys/compat/linux32/common/linux32_utsname.c: revision 1.10
	sys/compat/linux/common/linux_termios.h: revision 1.22
	sys/compat/linux32/common/linux32_termios.c: revision 1.15
	sys/compat/linux32/common/linux32_misc.c: revision 1.27
	sys/compat/linux32/common/linux32_ioctl.c: revision 1.14
	sys/compat/linux/common/linux_statfs.h: revision 1.7
	sys/compat/linux/common/linux_ipc.c: revision 1.57
	sys/compat/linux/common/linux_fcntl.h: revision 1.18
	sys/compat/linux/common/linux_socket.h: revision 1.24
	sys/sys/shm.h: revision 1.54
	sys/compat/ossaudio/ossaudio.c: revision 1.75
	sys/compat/linux32/common/linux32_signal.c: revision 1.20
	sys/miscfs/procfs/procfs_linux.c: revision 1.75
	sys/compat/linux/common/linux_signal.c: revision 1.81
	sys/compat/linux/common/linux_termios.c: revision 1.38
	sys/compat/linux/common/linux_misc.c: revision 1.241
	sys/compat/linux/common/linux_misc.c: revision 1.242
	sys/compat/linux/common/linux_misc.c: revision 1.243
	sys/compat/linux/common/linux_misc.c: revision 1.244

Fix info leaks.

Fix stupid bugs in linux_sys_shmctl(): the index could be out of bound
(page fault) and there was no proper locking.
Maybe we should just remove LINUX_SHM_STAT, like compat_linux32.

Remove printf.

When dealing with an unknown value, set -1, to prevent (harmless)
uninitialized accesses later.

Add a default case, don't call sys_ioctl() with an uninitialized 'com'
argument.

Fix error handling, returns an errno, not -1.

Put the printf under DEBUG_LINUX.


Hum, don't forget the 'pid' argument, otherwise we're not gonna go very
far.

Don't read data from userland directly. This simply does not work on any
recent x86 CPU (thanks to SMAP) and all architectures that forbid direct
access to userland from the kernel. But I guess no one noticed because no
one ever uses compat_linux, right?

Hum, don't pass an mbuf to realloc(). Inspired from copyin32_msg_control().

Fix memory leak.

I don't see the point in having this useless printf, but add a '\n' to it,
so that it at least displays useless stuff correctly.

Hum, remove incorrect assignment. Userland could have passed a smaller
namelen, and the uninitialized bytes from sb_data were being used later in
the network stack.

When dealing with an unknown value, set -1, to prevent (harmless)
uninitialized accesses later.

update from HEAD

Sync with HEAD

Add Linux specific fcntl(2) commands. Support F_DUPFD_CLOEXEC.

Rebase to HEAD as of a few days ago.

Rebase.

Cleanup pipe(2) flags, now that native handle them.

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

Add utimensat(2) for compat linux.

Sync with HEAD.

sync with head.

sync with head.

Remove clause 3 and 4 from TNF licenses

Sync with HEAD.

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.

Fix the linux32 emulations of fcntl() locking.
The 64bit linux emulation versions can't be used because the lock structure
alignment and field sizes all differ.
Since there need to be 4 different versions of the linux struct flock, and
amd64 kernel needs 3 of them compiled in, rather than replicating the same
code block twice more, move the body of the code into a few #defines
that can be expanded with the correct types in the linux[32]_sys_fcntl[64]()
functions.
Should fix problems running progams like skype running under linux32
emulation on amd64.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

First work on COMPAT_LINUX/amd64
Process startup and dynamiclinking work, but processes hang due to
Linux arch_prctl(2) not being really supported yet.

catch up with -current on kqueue branch

Catch up to -current.
(CVS: It's not just a program. It's an adventure!)

implement the locking calls for linux_file64.

Catch up to -current.

Sync w/ -current.

Crude first cut at ARMLinux binary compatibility.  Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Sync kqueue branch with -current.

Catch up with -current.

Catch up to -current.
Again.

Enable Mips Linux emulation in header files

Sync with HEAD.

Added Linux compatibility support for powerpc ports

Added linux compat support on m68k ports.

Assign my copyright to TNF. Merge with others were appropriate.
Regen syscall files after script change.

Attempt to fix the mess.

Split linux_fcntl.h into i386 and common parts.

Added Linux compat code.