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272461 |
|
02-Oct-2014 |
gjb |
Copy stable/10@r272459 to releng/10.1 as part of the 10.1-RELEASE process.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
#
256281 |
|
10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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#
231378 |
|
10-Feb-2012 |
ed |
Remove direct access to si_name.
Code should just use the devtoname() function to obtain the name of a character device. Also add const keywords to pieces of code that need it to build properly.
MFC after: 2 weeks
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#
230132 |
|
15-Jan-2012 |
uqs |
Convert files to UTF-8
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#
224778 |
|
11-Aug-2011 |
rwatson |
Second-to-last commit implementing Capsicum capabilities in the FreeBSD kernel for FreeBSD 9.0:
Add a new capability mask argument to fget(9) and friends, allowing system call code to declare what capabilities are required when an integer file descriptor is converted into an in-kernel struct file *. With options CAPABILITIES compiled into the kernel, this enforces capability protection; without, this change is effectively a no-op.
Some cases require special handling, such as mmap(2), which must preserve information about the maximum rights at the time of mapping in the memory map so that they can later be enforced in mprotect(2) -- this is done by narrowing the rights in the existing max_protection field used for similar purposes with file permissions.
In namei(9), we assert that the code is not reached from within capability mode, as we're not yet ready to enforce namespace capabilities there. This will follow in a later commit.
Update two capability names: CAP_EVENT and CAP_KEVENT become CAP_POST_KEVENT and CAP_POLL_KEVENT to more accurately indicate what they represent.
Approved by: re (bz) Submitted by: jonathan Sponsored by: Google Inc
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218497 |
|
09-Feb-2011 |
netchild |
Linux' shm_open() fails because it wants to find some funky shmfs to construct the full pathname. It starts to search at the default mountpoint which is /dev/shm. If this fails it runs through fstab and searches for shmfs and tmpfs. Whatever it finds will be statfs()'ed to be checked for Linux' fs magic for shmfs (0x01021994).
Ideally our tmpfs should deliver this fs magic to Linux processes, but as our tmpfs is considered to be an experimental feature we can not assume that there is always a tmpfs available.
To make shared memory work in the Linuxulator, force the fs type of /dev/shm (which can be a symlink) to match what Linux expects. The user is responsible (info has to be added to the linux base ports and the docs) to setup a suitable link for /dev/shm.
Noticed by: Andre Albsmeier <Andre.Albsmeier@siemens.com> Submitted by: Andre Albsmeier <Andre.Albsmeier@siemens.com> MFC after: 1 month
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205792 |
|
28-Mar-2010 |
ed |
Rename st_*timespec fields to st_*tim for POSIX 2008 compliance.
A nice thing about POSIX 2008 is that it finally standardizes a way to obtain file access/modification/change times in sub-second precision, namely using struct timespec, which we already have for a very long time. Unfortunately POSIX uses different names.
This commit adds compatibility macros, so existing code should still build properly. Also change all source code in the kernel to work without any of the compatibility macros. This makes it all a less ambiguous.
I am also renaming st_birthtime to st_birthtim, even though it was a local extension anyway. It seems Cygwin also has a st_birthtim.
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204068 |
|
18-Feb-2010 |
pjd |
No need to include security/mac/mac_framework.h here.
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#
193511 |
|
05-Jun-2009 |
rwatson |
Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC and used in a large number of files, but also because an increasing number of incorrect uses of MAC calls were sneaking in due to copy-and-paste of MAC-aware code without the associated opt_mac.h include.
Discussed with: pjd
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191896 |
|
07-May-2009 |
jamie |
Move the per-prison Linux MIB from a private one-off pointer to the new OSD-based jail extensions. This allows the Linux MIB to accessed via jail_set and jail_get, and serves as a demonstration of adding jail support to a module.
Reviewed by: dchagin, kib Approved by: bz (mentor)
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#
188849 |
|
20-Feb-2009 |
ed |
Don't make Linux stat() open character devices to resolve its name.
The existing code calls kern_open() to resolve the vnode of a pathname right after a stat(). This is not correct, because it causes random character devices to be opened in /dev. This means ls'ing a tape streamer will cause it to rewind, for example. Changes I have made:
- Add kern_statat_vnhook() to allow binary emulators to `post-process' struct stat, using the proper vnode.
- Remove unneeded printf's from stat() and statfs().
- Make the Linuxolator use kern_statat_vnhook(), replacing translate_path_major_minor_at().
- Let translate_fd_major_minor() use vp->v_rdev instead of vp->v_un.vu_cdev.
Result:
crw-rw-rw- 1 root root 0, 14 Feb 20 13:54 /dev/ptmx crw--w---- 1 root adm 136, 0 Feb 20 14:03 /dev/pts/0 crw--w---- 1 root adm 136, 1 Feb 20 14:02 /dev/pts/1 crw--w---- 1 ed tty 136, 2 Feb 20 14:03 /dev/pts/2
Before this commit, ptmx also had a major number of 136, because it silently allocated and deallocated a pseudo-terminal. Device nodes that cannot be opened now have proper major/minor-numbers.
Reviewed by: kib, netchild, rdivacky (thanks!)
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187830 |
|
28-Jan-2009 |
ed |
Last step of splitting up minor and unit numbers: remove minor().
Inside the kernel, the minor() function was responsible for obtaining the device minor number of a character device. Because we made device numbers dynamically allocated and independent of the unit number passed to make_dev() a long time ago, it was actually a misnomer. If you really want to obtain the device number, you should use dev2udev().
We already converted all the drivers to use dev2unit() to obtain the device unit number, which is still used by a lot of drivers. I've noticed not a single driver passes NULL to dev2unit(). Even if they would, its behaviour would make little sense. This is why I've removed the NULL check.
Ths commit removes minor(), minor2unit() and unit2minor() from the kernel. Because there was a naming collision with uminor(), we can rename umajor() and uminor() back to major() and minor(). This means that the makedev(3) manual page also applies to kernel space code now.
I suspect umajor() and uminor() isn't used that often in external code, but to make it easier for other parties to port their code, I've increased __FreeBSD_version to 800062.
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#
181905 |
|
20-Aug-2008 |
ed |
Integrate the new MPSAFE TTY layer to the FreeBSD operating system.
The last half year I've been working on a replacement TTY layer for the FreeBSD kernel. The new TTY layer was designed to improve the following:
- Improved driver model:
The old TTY layer has a driver model that is not abstract enough to make it friendly to use. A good example is the output path, where the device drivers directly access the output buffers. This means that an in-kernel PPP implementation must always convert network buffers into TTY buffers.
If a PPP implementation would be built on top of the new TTY layer (still needs a hooks layer, though), it would allow the PPP implementation to directly hand the data to the TTY driver.
- Improved hotplugging:
With the old TTY layer, it isn't entirely safe to destroy TTY's from the system. This implementation has a two-step destructing design, where the driver first abandons the TTY. After all threads have left the TTY, the TTY layer calls a routine in the driver, which can be used to free resources (unit numbers, etc).
The pts(4) driver also implements this feature, which means posix_openpt() will now return PTY's that are created on the fly.
- Improved performance:
One of the major improvements is the per-TTY mutex, which is expected to improve scalability when compared to the old Giant locking. Another change is the unbuffered copying to userspace, which is both used on TTY device nodes and PTY masters.
Upgrading should be quite straightforward. Unlike previous versions, existing kernel configuration files do not need to be changed, except when they reference device drivers that are listed in UPDATING.
Obtained from: //depot/projects/mpsafetty/... Approved by: philip (ex-mentor) Discussed: on the lists, at BSDCan, at the DevSummit Sponsored by: Snow B.V., the Netherlands dcons(4) fixed by: kan
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179486 |
|
02-Jun-2008 |
ed |
Push down the major/minor conversion for pts/%u to improve consistency.
In the mpsafetty branch, Linux sshd seems to work properly inside a jail. Some small modifications had to be made to the Linux compatibility layer.
The Linux PTY routines always expect the device major number to be 136 or higher. Our code always set the major/minor number pair to 136:0. This makes routines like ttyname() and ptsname() fail, because we'll end up having ambiguous device numbers.
The conversion was not performed on all *stat() routines, which meant in some cases the numbers didn't get transformed. By pushing the conversion into linux_driver_get_major_minor(), the transformation will take place on all calls.
Approved by: philip (mentor), rdivacky
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#
177997 |
|
08-Apr-2008 |
kib |
Implement the linux syscalls openat, mkdirat, mknodat, fchownat, futimesat, fstatat, unlinkat, renameat, linkat, symlinkat, readlinkat, fchmodat, faccessat.
Submitted by: rdivacky Sponsored by: Google Summer of Code 2007 Tested by: pho
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175107 |
|
05-Jan-2008 |
kib |
After applying LCONVPATH() to the path, do use the converted path instead of original user-mode string in the linux_stat() and linux_lstat() syscalls.
Tested by: Peter Holm MFC after: 3 days
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#
174974 |
|
29-Dec-2007 |
kib |
Apply the LCONVPATH() to the (old) linux_stat() and linux_lstat() syscalls. Without it, code has two problems: - behaviour of the old and new [l]stat are different with regard of the /compat/linux - directly accessing the userspace data from the kernel asks for the panics.
Reported and tested by: Peter Holm Reviewed by: rdivacky MFC after: 3 days
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#
172220 |
|
18-Sep-2007 |
dwmalone |
The kernel version of Linux statfs64 is actually supposed to take 3 arguments, but we had forgotten the second argument. Also make the Linux statfs64 struct depend on the architecture because it has an extra 4 bytes padding on amd64 compared to i386.
The three argument fix is from David Taylor, the struct statfs64 stuff is my fault. With this patch I can install i386 Linux matlab on an amd64 machine.
Submitted by: David Taylor <davidt_at_yadt.co.uk> Approved by: re (kensmith)
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#
167257 |
|
06-Mar-2007 |
rwatson |
In translate_path_major_minor(), do not calculate otherwise unused 'fp' variable, avoiding an extra locking of the file descriptor array.
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#
164890 |
|
04-Dec-2006 |
jkim |
MFP4: 109652
Fixes for 'blocking in fifoor state' problem of LTP tests. linux_*stat*() functions were opening files with O_RDONLY to get major/minor pair for char/block special files. Unfortunately, when these functions are used against fifo, it is blocked forever because there is no writer. Instead, we only open char/block special files for major/minor conversion. We have to get rid of kern_open() entirely from translate_path_major_minor() but today is not the day. While I am here, add checks for errors before calling translate_path_major_minor().
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163606 |
|
22-Oct-2006 |
rwatson |
Complete break-out of sys/sys/mac.h into sys/security/mac/mac_framework.h begun with a repo-copy of mac.h to mac_framework.h. sys/mac.h now contains the userspace and user<->kernel API and definitions, with all in-kernel interfaces moved to mac_framework.h, which is now included across most of the kernel instead.
This change is the first step in a larger cleanup and sweep of MAC Framework interfaces in the kernel, and will not be MFC'd.
Obtained from: TrustedBSD Project Sponsored by: SPARTA
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#
161665 |
|
27-Aug-2006 |
netchild |
Add the linux statfs64 call. This allows Tivoli backup to proceed a little but further on -current (still not successful, but a step into the right direction).
Sponsored by: Google SoC 2006 Submitted by: rdivacky Tested by: Paul Mather <paul@gromit.dlib.vt.edu>
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#
158658 |
|
16-May-2006 |
ambrisko |
Fix file leaking in translate_path_major_minor.
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#
158415 |
|
10-May-2006 |
netchild |
Now that we don't have a linuxolator on alpha anymore: - unifdef __alpha__ - revert rev. 1.66 of linux_socket.c
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#
158312 |
|
05-May-2006 |
ambrisko |
Fix the the duplicate cut-n-paste in linux_fstat64 pointed out by Alexander Leidinger. I forget to fix it in this version.
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#
158311 |
|
05-May-2006 |
ambrisko |
Enhance the Linux emulation layer to make MegaRAID SAS managements tool happy. Add back in a scheme to emulate old type major/minor numbers via hooks into stat, linprocfs to return major/minors that Linux app's expect. Currently only /dev/null is always registered. Drivers can register via the Linux type shim similar to the ioctl shim but by using linux_device_register_handler/linux_device_unregister_handler functions. The structure is:
struct linux_device_handler { char *bsd_driver_name; char *linux_driver_name; char *bsd_device_name; char *linux_device_name; int linux_major; int linux_minor; int linux_char_device; };
Linprocfs uses this to display the major number of the driver. The soon to be available linsysfs will use it to fill in the driver name. Linux_stat uses it to translate the major/minor into Linux type values.
Note major numbers are dynamically assigned via passing in a -1 for the major number so we don't need to keep track of them.
This is somewhat needed due to us switching to our devfs. MegaCli will not run until I add in the linsysfs and mfi Linux compat changes.
Sponsored by: IronPort Systems
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#
156921 |
|
20-Mar-2006 |
netchild |
Fix tinderbox on alpha.
Tested by: cross-compile
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#
156874 |
|
19-Mar-2006 |
ru |
Unbreak COMPAT_LINUX32 option support on amd64.
Broken by: netchild
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156850 |
|
18-Mar-2006 |
netchild |
Fixup some problems in my previous commit (COMPAT_43).
Pointyhat to: netchild
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156842 |
|
18-Mar-2006 |
netchild |
Get rid of the need of COMPAT_43 in the linuxolator.
Submitted by: Divacky Roman <xdivac02@stud.fit.vutbr.cz> Obtained from: DragonFly (some parts)
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#
155382 |
|
06-Feb-2006 |
jeff |
- Remove ifdef disabled code that doesn't have a chance of working anymore.
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#
154872 |
|
26-Jan-2006 |
cognet |
Fix a typo : deivce => device
Spotted by: rwatson
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154834 |
|
25-Jan-2006 |
cognet |
Linux compat bits needed to make linux programs use the new ptys : linux_ioctl.[ch] : Implement LINUX_TIOCGPTN, which returns the pty number linux_stats.c : - Return the magic number for devfs. - In various stats()-related functions, check that we're stating a file in /dev/pts, and if so, change the st_rdev field to match what linux expects to be there for a slave pty device. The glibc checks for this, and their openpty() fails if it is no correct.
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#
147559 |
|
23-Jun-2005 |
pjd |
Actually only protect mount-point if security.jail.enforce_statfs is set to 2. If we don't return statistics about requested file systems, system tools may not work correctly or at all.
Approved by: re (scottl)
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#
147185 |
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09-Jun-2005 |
pjd |
Rename sysctl security.jail.getfsstatroot_only to security.jail.enforce_statfs and extend its functionality:
value policy 0 show all mount-points without any restrictions 1 show only mount-points below jail's chroot and show only part of the mount-point's path (if jail's chroot directory is /jails/foo and mount-point is /jails/foo/usr/home only /usr/home will be shown) 2 show only mount-point where jail's chroot directory is placed.
Default value is 2.
Discussed with: rwatson
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146695 |
|
27-May-2005 |
pjd |
Remove (now) unused argument 'td' from bsd_to_linux_statfs().
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#
146505 |
|
22-May-2005 |
pjd |
The code is under '#ifdef not_that_way', but anyway:
- Add missing prison_check_mount() check.
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146502 |
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22-May-2005 |
pjd |
If we need to hide fsid, kern_statfs()/kern_fstatfs() will do it for us, so do not duplicate the code in cvtstatfs(). Note, that we now need to clear fsid in freebsd4_getfsstat().
This moves all security related checks from functions like cvtstatfs() and will allow to add more security related stuff (like statfs(2), etc. protection for jails) a bit easier.
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#
143635 |
|
15-Mar-2005 |
phk |
Neuter the duplicated disk-device magic code for now. Somebody with serious linux-clue is necessary to fix this properly.
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#
142220 |
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22-Feb-2005 |
phk |
Neuter linux_ustat() until somebody finds time to try to fix it.
The fundamental problem is that we get only the lower 8 bits of the minor device number so there is no guarantee that we can actually find the disk device in question at all.
This was probably a bigger issue pre-GEOM where the upper bits signaled which slice were in use.
The secondary problem is how we get from (partial) dev_t to vnode.
The correct implementation will involve traversing the mount list looking for a perfect match or a possible match (for truncated minor).
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141473 |
|
07-Feb-2005 |
jhb |
- Use kern_{l,f,}stat() and kern_{f,}statfs() functions rather than duplicating the contents of the same functions inline. - Consolidate common code to convert a BSD statfs struct to a Linux struct into a static worker function.
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#
140214 |
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14-Jan-2005 |
obrien |
Match the LINUX32's style with existing style Submitted by: Jung-uk Kim <jkim@niksun.com>
Use positive, not negative logic.
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#
135715 |
|
24-Sep-2004 |
phk |
Hold thread reference while frobbing cdevsw.
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#
133816 |
|
16-Aug-2004 |
tjr |
Changes to MI Linux emulation code necessary to run 32-bit Linux binaries on AMD64, and the general case where the emulated platform has different size pointers than we use natively: - declare certain structure members as l_uintptr_t and use the new PTRIN and PTROUT macros to convert to and from native pointers. - declare some structures __packed on amd64 when the layout would differ from that used on i386. - include <machine/../linux32/linux.h> instead of <machine/../linux/linux.h> if compiling with COMPAT_LINUX32. This will need to be revisited before 32-bit and 64-bit Linux emulation support can coexist in the same kernel. - other small scattered changes.
This should be a no-op on i386 and Alpha.
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133716 |
|
14-Aug-2004 |
phk |
Add XXX comment about findcdev() misuse.
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130640 |
|
17-Jun-2004 |
phk |
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.
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130585 |
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16-Jun-2004 |
phk |
Do the dreaded s/dev_t/struct cdev */ Bump __FreeBSD_version accordingly.
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#
126851 |
|
11-Mar-2004 |
phk |
Remove unused second arg to vfinddev(). Don't call addaliasu() on VBLK nodes.
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#
126081 |
|
21-Feb-2004 |
phk |
Device megapatch 5/6:
Remove the unused second argument from udev2dev().
Convert all remaining users of makedev() to use udev2dev(). The semantic difference is that udev2dev() will only locate a pre-existing dev_t, it will not line makedev() create a new one.
Apart from the tiny well controlled windown in D_PSEUDO drivers, there should no longer be any "anonymous" dev_t's in the system now, only dev_t's created with make_dev() and make_dev_alias()
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#
122153 |
|
05-Nov-2003 |
anholt |
Prevent leaking of fsid to non-root users in linux_statfs and linux_fstatfs. Matches native syscalls now.
PR: kern/58793 Submitted by: David P. Reese Jr. <daver@gomerbud.com> MFC after: 1 week
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116678 |
|
22-Jun-2003 |
phk |
Add a f_vnode field to struct file.
Several of the subtypes have an associated vnode which is used for stuff like the f*() functions.
By giving the vnode a speparate field, a number of checks for the specific subtype can be replaced simply with a check for f_vnode != NULL, and we can later free f_data up to subtype specific use.
At this point in time, f_data still points to the vnode, so any code I might have overlooked will still work.
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116173 |
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10-Jun-2003 |
obrien |
Use __FBSDID().
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114230 |
|
29-Apr-2003 |
mbr |
Initialize tbuf in newstat_copyout() too.
Reviewed by: phk
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114214 |
|
29-Apr-2003 |
mbr |
Do the same thing for stat64_copyout() as we already do for newstat_copyout().
Lie about disk drives which are character devices in FreeBSD but block devices under Linux.
PR: 37227 Submitted by: Vladimir B. Grebenschikov <vova@sw.ru> Reviewed by: phk MFC after: 2 weeks
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#
112451 |
|
20-Mar-2003 |
jhb |
Use td->td_ucred instead of td->td_proc->p_ucred.
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#
111798 |
|
03-Mar-2003 |
des |
Clean up whitespace and remove register keyword.
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#
111797 |
|
03-Mar-2003 |
des |
More caddr_t removal, in conjunction with copy{in,out}(9) this time. Also clean up some egregious casts and incorrect use of sizeof.
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#
109153 |
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12-Jan-2003 |
dillon |
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.
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#
109123 |
|
11-Jan-2003 |
dillon |
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.
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102954 |
|
05-Sep-2002 |
bde |
Include <sys/malloc.h> instead of depending on namespace pollution 2 layers deep in <sys/proc.h> or <sys/vnode.h>.
Removed unused includes. Sorted includes.
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102814 |
|
01-Sep-2002 |
iedowse |
Use the new kern_* functions to avoid the need to store arguments in the stack gap. This converts most VFS and signal related system calls, as well as select().
Discussed on: -arch Approved by: marcel
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101983 |
|
16-Aug-2002 |
rwatson |
Make similar changes to fo_stat() and fo_poll() as made earlier to fo_read() and fo_write(): explicitly use the cred argument to fo_poll() as "active_cred" using the passed file descriptor's f_cred reference to provide access to the file credential. Add an active_cred argument to fo_stat() so that implementers have access to the active credential as well as the file credential. Generally modify callers of fo_stat() to pass in td->td_ucred rather than fp->f_cred, which was redundantly provided via the fp argument. This set of modifications also permits threads to perform these operations on behalf of another thread without modifying their credential.
Trickle this change down into fo_stat/poll() implementations:
- badfo_poll(), badfo_stat(): modify/add arguments. - kqueue_poll(), kqueue_stat(): modify arguments. - pipe_poll(), pipe_stat(): modify/add arguments, pass active_cred to MAC checks rather than td->td_ucred. - soo_poll(), soo_stat(): modify/add arguments, pass fp->f_cred rather than cred to pru_sopoll() to maintain current semantics. - sopoll(): moidfy arguments. - vn_poll(), vn_statfile(): modify/add arguments, pass new arguments to vn_stat(). Pass active_cred to MAC and fp->f_cred to VOP_POLL() to maintian current semantics. - vn_close(): rename cred to file_cred to reflect reality while I'm here. - vn_stat(): Add active_cred and file_cred arguments to vn_stat() and consumers so that this distinction is maintained at the VFS as well as 'struct file' layer. Pass active_cred instead of td->td_ucred to MAC and to VOP_GETATTR() to maintain current semantics.
- fifofs: modify the creation of a "filetemp" so that the file credential is properly initialized and can be used in the socket code if desired. Pass ap->a_td->td_ucred as the active credential to soo_poll(). If we teach the vnop interface about the distinction between file and active credentials, we would use the active credential here.
Note that current inconsistent passing of active_cred vs. file_cred to VOP's is maintained. It's not clear why GETATTR would be authorized using active_cred while POLL would be authorized using file_cred at the file system level.
Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
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#
101707 |
|
11-Aug-2002 |
rwatson |
Another fix that wasn't pulled in from the MAC branch: the struct mount is not cached as *mp at this point, so use vp->v_mount directly, following the check that it's non-NULL.
Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
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#
101189 |
|
01-Aug-2002 |
rwatson |
Introduce support for Mandatory Access Control and extensible kernel access control.
Invoke appropriate MAC entry points for a number of VFS-related operations in the Linux ABI module. In particular, handle uselib in a manner similar to open() (more work is probably needed here), as well as handle statfs(), and linux readdir()-like calls.
Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
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97748 |
|
02-Jun-2002 |
schweikh |
Fix typo in the BSD copyright: s/withough/without/
Spotted and suggested by: des MFC after: 3 weeks
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89319 |
|
13-Jan-2002 |
alfred |
Replace ffind_* with fget calls.
Make fget MPsafe.
Make fgetvp and fgetsock use the fget subsystem to reduce code bloat.
Push giant down in fpathconf().
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89306 |
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13-Jan-2002 |
alfred |
SMP Lock struct file, filedesc and the global file list.
Seigo Tanimura (tanimura) posted the initial delta.
I've polished it quite a bit reducing the need for locking and adapting it for KSE.
Locks:
1 mutex in each filedesc protects all the fields. protects "struct file" initialization, while a struct file is being changed from &badfileops -> &pipeops or something the filedesc should be locked.
1 mutex in each struct file protects the refcount fields. doesn't protect anything else. the flags used for garbage collection have been moved to f_gcflag which was the FILLER short, this doesn't need locking because the garbage collection is a single threaded container. could likely be made to use a pool mutex.
1 sx lock for the global filelist.
struct file * fhold(struct file *fp); /* increments reference count on a file */
struct file * fhold_locked(struct file *fp); /* like fhold but expects file to locked */
struct file * ffind_hold(struct thread *, int fd); /* finds the struct file in thread, adds one reference and returns it unlocked */
struct file * ffind_lock(struct thread *, int fd); /* ffind_hold, but returns file locked */
I still have to smp-safe the fget cruft, I'll get to that asap.
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#
83667 |
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19-Sep-2001 |
sobomax |
Fix abuse of vtagtype. In addition, after this the linux programs will be able correctly distinguish ext2fs from the ufs filesystem (previously ext2fs was indistinguishable from the ufs).
Reviewed by: phk, marcel
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#
83366 |
|
12-Sep-2001 |
julian |
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
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#
83221 |
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08-Sep-2001 |
marcel |
Round of cleanups and enhancements. These include (in random order):
o Introduce private types for use in linux syscalls for two reasons: 1. establish type independence for ease in porting and, 2. provide a visual queue as to which syscalls have proper prototypes to further cleanup the i386/alpha split. Linuxulator types are prefixed by 'l_'. void and char have not been "virtualized".
o Provide dummy functions for all syscalls and remove dummy functions or implementations of truely obsolete syscalls.
o Sanitize the shm*, sem* and msg* syscalls.
o Make a first attempt to implement the linux_sysctl syscall. At this time it only returns one MIB (KERN_VERSION), but most importantly, it tells us when we need to add additional sysctls :-)
o Bump the kenel version up to 2.4.2 (this is not the same as the KERN_VERSION MIB, BTW).
o Implement new syscalls, of which most are specific to i386. Our syscall table is now up to date with Linux 2.4.2. Some highlights: - Implement the 32-bit uid_t and gid_t bases syscalls. - Implement a couple of 64-bit file size/offset bases syscalls.
o Fix or improve numerous syscalls and prototypes.
o Reduce style(9) violations while I'm here. Especially indentation inconsistencies within the same file are addressed. Re-indenting did not obfuscate actual changes to the extend that it could not be combined.
NOTE: I spend some time testing these changes and found that if there were regressions, they were not caused by these changes AFAICT. It was observed that installing a RH 7.1 runtime environment did make matters worse. Hangs and/or reboots have been observed with and without these changes, so when it failed to make life better in cases it doesn't look like it made it worse.
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#
77675 |
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04-Jun-2001 |
paul |
S_IFCHR is not a bit mask, it's just a value in a field. The correct way to clear that field is to use S_IFMT.
Pointed out by BDE.
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#
77575 |
|
01-Jun-2001 |
ru |
Remove vestiges of MFS.
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#
77435 |
|
29-May-2001 |
phk |
Remove MFS
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#
77223 |
|
26-May-2001 |
ru |
- sys/n[tw]fs moved to sys/fs/n[tw]fs - /usr/include/n[tw]fs moved to /usr/include/fs/n[tw]fs
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#
75988 |
|
25-Apr-2001 |
paul |
A bogus check for a char device also matched symbolic links. Replace it with a correct check using S_ISCHR()
Symbolic links will now work again in linux compatibility.
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#
72543 |
|
16-Feb-2001 |
jlemon |
Allow debugging output to be controlled on a per-syscall granularity. Also clean up debugging output in a slightly more uniform fashion.
The default behavior remains the same (all debugging output is turned on)
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#
71048 |
|
14-Jan-2001 |
joe |
Instead of hard coding the major numbers for IDE and SCSI disks look in the device's cdevsw for the D_DISK flag.
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#
70458 |
|
28-Dec-2000 |
paul |
Map FreeBSD character device hard disks to Linux block device hard disks.
This fixes the problem with VMWARE not being able to use raw disks.
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#
69539 |
|
02-Dec-2000 |
marcel |
Don't auto-generate the syscalls.
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#
68583 |
|
10-Nov-2000 |
marcel |
Revert auto-generation. The Alpha port is broken. Syncing with it is wrong.
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#
68519 |
|
09-Nov-2000 |
marcel |
Sync with Alpha: Do not use sysent.c, proto.h and syscall.h in source tree; use auto-generated versions.
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#
68225 |
|
02-Nov-2000 |
marcel |
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
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#
68201 |
|
01-Nov-2000 |
obrien |
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
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#
64913 |
|
21-Aug-2000 |
marcel |
Update include directives.
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#
59794 |
|
30-Apr-2000 |
phk |
Remove unneeded #include <vm/vm_zone.h>
Generated by: src/tools/tools/kerninclude
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#
55629 |
|
08-Jan-2000 |
marcel |
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>
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#
54655 |
|
15-Dec-1999 |
eivind |
Introduce NDFREE (and remove VOP_ABORTOP)
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#
54399 |
|
10-Dec-1999 |
marcel |
Remove unused includes.
Found by: phk-scan
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#
53758 |
|
27-Nov-1999 |
marcel |
Implement linux_ustat.
Reviewed by: bde
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#
52986 |
|
08-Nov-1999 |
peter |
Use fo_stat() rather than Yet Another duplication of kern_descrip.c's stat code.
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#
50558 |
|
29-Aug-1999 |
marcel |
Fix a braino: Linux minor device numbers are 8 bits wide and not 10.
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#
50477 |
|
27-Aug-1999 |
peter |
$Id$ -> $FreeBSD$
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#
50356 |
|
25-Aug-1999 |
marcel |
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
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#
47028 |
|
11-May-1999 |
phk |
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).
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#
46778 |
|
09-May-1999 |
phk |
Yet another place which knew too much. Still not sure how much good this does in the end.
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#
46571 |
|
06-May-1999 |
peter |
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.
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#
30994 |
|
06-Nov-1997 |
phk |
Move the "retval" (3rd) parameter from all syscall functions and put it in struct proc instead.
This fixes a boatload of compiler warning, and removes a lot of cruft from the sources.
I have not removed the /*ARGSUSED*/, they will require some looking at.
libkvm, ps and other userland struct proc frobbing programs will need recompiled.
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#
22975 |
|
22-Feb-1997 |
peter |
Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not ready for it yet.
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#
21673 |
|
14-Jan-1997 |
jkh |
Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
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#
20691 |
|
19-Dec-1996 |
bde |
Fixed lseek() on named pipes. It always succeeded but should always fail. Broke locking on named pipes in the same way as locking on non-vnodes (wrong errno). This will be fixed later.
The fix involves negative logic. Named pipes are now distinguished from other types of files with vnodes, and there is additional code to handle vnodes and named pipes in the same way only where that makes sense (not for lseek, locking or TIOCSCTTY).
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#
14331 |
|
02-Mar-1996 |
peter |
Mega-commit for Linux emulator update.. This has been stress tested under netscape-2.0 for Linux running all the Java stuff. The scrollbars are now working, at least on my machine. (whew! :-)
I'm uncomfortable with the size of this commit, but it's too inter-dependant to easily seperate out.
The main changes:
COMPAT_LINUX is *GONE*. Most of the code has been moved out of the i386 machine dependent section into the linux emulator itself. The int 0x80 syscall code was almost identical to the lcall 7,0 code and a minor tweak allows them to both be used with the same C code. All kernels can now just modload the lkm and it'll DTRT without having to rebuild the kernel first. Like IBCS2, you can statically compile it in with "options LINUX".
A pile of new syscalls implemented, including getdents(), llseek(), readv(), writev(), msync(), personality(). The Linux-ELF libraries want to use some of these.
linux_select() now obeys Linux semantics, ie: returns the time remaining of the timeout value rather than leaving it the original value.
Quite a few bugs removed, including incorrect arguments being used in syscalls.. eg: mixups between passing the sigset as an int, vs passing it as a pointer and doing a copyin(), missing return values, unhandled cases, SIOC* ioctls, etc.
The build for the code has changed. i386/conf/files now knows how to build linux_genassym and generate linux_assym.h on the fly.
Supporting changes elsewhere in the kernel:
The user-mode signal trampoline has moved from the U area to immediately below the top of the stack (below PS_STRINGS). This allows the different binary emulations to have their own signal trampoline code (which gets rid of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so that the emulator can provide the exact "struct sigcontext *" argument to the program's signal handlers.
The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which have the same values as the re-used SA_DISABLE and SA_ONSTACK which are intended for sigaction only. This enables the support of a SA_RESETHAND flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal semantics where the signal handler is reset when it's triggered.
makesyscalls.sh no longer appends the struct sysentvec on the end of the generated init_sysent.c code. It's a lot saner to have it in a seperate file rather than trying to update the structure inside the awk script. :-)
At exec time, the dozen bytes or so of signal trampoline code are copied to the top of the user's stack, rather than obtaining the trampoline code the old way by getting a clone of the parent's user area. This allows Linux and native binaries to freely exec each other without getting trampolines mixed up.
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#
13739 |
|
30-Jan-1996 |
peter |
Call pipe_stat() when presented with a DTYPE_PIPE file in the linux fstat() syscall, rather than panic("linux newfstat").
(Note: I've extracted this from a larger set of diffs, I'm confident I've not missed any dependencies but can't modload it to test it on my system)
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#
12458 |
|
22-Nov-1995 |
bde |
Completed function declarations and added prototypes.
Removed some unnecessary #includes.
Fixed warnings about nested externs.
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#
10358 |
|
28-Aug-1995 |
julian |
Reviewed by: julian with quick glances by bruce and others Submitted by: terry (terry lambert) This is a composite of 3 patch sets submitted by terry. they are: New low-level init code that supports loadbal modules better some cleanups in the namei code to help terry in 16-bit character support some changes to the mount-root code to make it a little more modular..
NOTE: mounting root off cdrom or NFS MIGHT be broken as I haven't been able to test those cases..
certainly mounting root of disk still works just fine.. mfs should work but is untested. (tomorrows task)
The low level init stuff includes a total rewrite of init_main.c to make it possible for new modules to have an init phase by simply adding an entry to a TEXT_SET (or is it DATA_SET) list. thus a new module can be added to the kernel without editing any other files other than the 'files' file.
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#
9313 |
|
25-Jun-1995 |
sos |
First incarnation of our Linux emulator or rather compatibility code. This first shot only incorporaties so much functionality that DOOM can run (the X version), signal handling is VERY weak, so is many other things. But it meets my milestone number one (you guessed it - running DOOM).
Uses /compat/linux as prefix for loading shared libs, so it won't conflict with our own libs.
Kernel must be compiled with "options COMPAT_LINUX" for this to work.
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