#
267654 |
|
19-Jun-2014 |
gjb |
Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
#
248532 |
|
19-Mar-2013 |
jkim |
MFC: r234352
Implement pipe2 syscall for Linuxulator.
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#
246291 |
|
03-Feb-2013 |
dchagin |
MFC r240387 (by kevlo@): Remove redundant check.
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#
239843 |
|
29-Aug-2012 |
kib |
MFC r238029: Extend the KPI to lock and unlock f_offset member of struct file. It now fully encapsulates all accesses to f_offset, and extends f_offset locking to other consumers that need it, in particular, to lseek() and variants of getdirentries().
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#
231145 |
|
07-Feb-2012 |
jhb |
MFC 228957: Implement linux_fadvise64() and linux_fadvise64_64() using kern_posix_fadvise().
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#
225736 |
|
22-Sep-2011 |
kensmith |
Copy head to stable/9 as part of 9.0-RELEASE release cycle.
Approved by: re (implicit)
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#
225617 |
|
16-Sep-2011 |
kmacy |
In order to maximize the re-usability of kernel code in user space this patch modifies makesyscalls.sh to prefix all of the non-compatibility calls (e.g. not linux_, freebsd32_) with sys_ and updates the kernel entry points and all places in the code that use them. It also fixes an additional name space collision between the kernel function psignal and the libc function of the same name by renaming the kernel psignal kern_psignal(). By introducing this change now we will ease future MFCs that change syscalls.
Reviewed by: rwatson Approved by: re (bz)
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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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#
217578 |
|
19-Jan-2011 |
kib |
In linuxolator getdents_common(), it seems there is no reason to loop if no records where returned by VOP_READDIR(). Readdir implementations allowed to return 0 records when first record is larger then supplied buffer. In this case trying to execute VOP_READDIR() again causes the syscall looping forewer.
The goto was there from the day 1, which goes back to 1995 year.
Reported and tested by: Beat G?tzi <beat chruetertee ch> MFC after: 2 weeks
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#
205423 |
|
21-Mar-2010 |
ed |
Actually make O_DIRECTORY work.
According to POSIX open() must return ENOTDIR when the path name does not refer to a path name. Change vn_open() to respect this flag. This also simplifies the Linuxolator a bit.
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#
202113 |
|
11-Jan-2010 |
mckusick |
Background:
When renaming a directory it passes through several intermediate states. First its new name will be created causing it to have two names (from possibly different parents). Next, if it has different parents, its value of ".." will be changed from pointing to the old parent to pointing to the new parent. Concurrently, its old name will be removed bringing it back into a consistent state. When fsck encounters an extra name for a directory, it offers to remove the "extraneous hard link"; when it finds that the names have been changed but the update to ".." has not happened, it offers to rewrite ".." to point at the correct parent. Both of these changes were considered unexpected so would cause fsck in preen mode or fsck in background mode to fail with the need to run fsck manually to fix these problems. Fsck running in preen mode or background mode now corrects these expected inconsistencies that arise during directory rename. The functionality added with this update is used by fsck running in background mode to make these fixes.
Solution:
This update adds three new fsck sysctl commands to support background fsck in correcting expected inconsistencies that arise from incomplete directory rename operations. They are:
setcwd(dirinode) - set the current directory to dirinode in the filesystem associated with the snapshot. setdotdot(oldvalue, newvalue) - Verify that the inode number for ".." in the current directory is oldvalue then change it to newvalue. unlink(nameptr, oldvalue) - Verify that the inode number associated with nameptr in the current directory is oldvalue then unlink it.
As with all other fsck sysctls, these new ones may only be used by processes with appropriate priviledge.
Reported by: jeff Security issues: rwatson
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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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#
190445 |
|
26-Mar-2009 |
ambrisko |
Add stuff to support upcoming BMC/IPMI flashing of newer Dell machine via the Linux tool. - Add Linux shim to ipmi(4) - Create a partitions file to linprocfs to make Linux fdisk see disks. This file is dynamic so we can see disks come and go. - Convert msdosfs to vfat in mtab since Linux uses that for msdosfs. - In the Linux mount path convert vfat passed in to msdosfs so Linux mount works on FreeBSD. Note that tasting works so that if da0 is a msdos file system /compat/linux/bin/mount /dev/da0 /mnt works. - fix a 64it bug for l_off_t. Grabing sh, mount, fdisk, df from Linux, creating a symlink of mtab to /compat/linux/etc/mtab and then some careful unpacking of the Linux bmc update tool and hacking makes it work on newer Dell boxes. Note, probably if you can't figure out how to do this, then you probably shouldn't be doing it :-)
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#
188588 |
|
13-Feb-2009 |
jhb |
Use shared vnode locks when invoking VOP_READDIR().
MFC after: 1 month
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#
188572 |
|
13-Feb-2009 |
netchild |
Fix an edge-case of the linux readdir: We need the size of a linux dirent structure, not the size of a pointer to it.
PR: 131099 Submitted by: Andreas Kies <andikies@gmail.com> MFC after: 2 weeks
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#
182892 |
|
09-Sep-2008 |
rdivacky |
Getdents requires padding with 2 bytes instead of 1 byte as with getdents64. The last byte is used for storing the d_type, add this to plain getdents case where it was missing before. Also change the code to use strlcpy instead of plain strcpy. This changes fix the getdents crash we had reports about (hl2 server etc.)
PR: kern/117010 MFC after: 1 week Submitted by: Dmitry Chagin (dchagin@) Tested by: MITA Yoshio <mita ee.t.u-tokyo.ac jp> Approved by: kib (mentor)
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#
179651 |
|
08-Jun-2008 |
rdivacky |
d_ino member of linux_dirent structure should be unsigned long.
Submitted by: Chagin Dmitry <chagin.dmitry@gmail.com> Approved by: kib (mentor)
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#
178439 |
|
23-Apr-2008 |
rdivacky |
Implement linux_truncate64() syscall.
Tested by: Aline de Freitas <aline@riseup.net> Approved by: kib (mentor)
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#
178036 |
|
09-Apr-2008 |
rdivacky |
Remove using magic value of -1 to distinguish between linux_open() and linux_openat(). Instead just pass AT_FDCWD into linux_common_open() for the linux_open() case. This prevents passing -1 as a dirfd to openat() from succeeding which is wrong.
Suggested by: rwatson, kib Approved by: kib (mentor)
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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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#
177633 |
|
26-Mar-2008 |
dfr |
Add the new kernel-mode NFS Lock Manager. To use it instead of the user-mode lock manager, build a kernel with the NFSLOCKD option and add '-k' to 'rpc_lockd_flags' in rc.conf.
Highlights include:
* Thread-safe kernel RPC client - many threads can use the same RPC client handle safely with replies being de-multiplexed at the socket upcall (typically driven directly by the NIC interrupt) and handed off to whichever thread matches the reply. For UDP sockets, many RPC clients can share the same socket. This allows the use of a single privileged UDP port number to talk to an arbitrary number of remote hosts.
* Single-threaded kernel RPC server. Adding support for multi-threaded server would be relatively straightforward and would follow approximately the Solaris KPI. A single thread should be sufficient for the NLM since it should rarely block in normal operation.
* Kernel mode NLM server supporting cancel requests and granted callbacks. I've tested the NLM server reasonably extensively - it passes both my own tests and the NFS Connectathon locking tests running on Solaris, Mac OS X and Ubuntu Linux.
* Userland NLM client supported. While the NLM server doesn't have support for the local NFS client's locking needs, it does have to field async replies and granted callbacks from remote NLMs that the local client has contacted. We relay these replies to the userland rpc.lockd over a local domain RPC socket.
* Robust deadlock detection for the local lock manager. In particular it will detect deadlocks caused by a lock request that covers more than one blocking request. As required by the NLM protocol, all deadlock detection happens synchronously - a user is guaranteed that if a lock request isn't rejected immediately, the lock will eventually be granted. The old system allowed for a 'deferred deadlock' condition where a blocked lock request could wake up and find that some other deadlock-causing lock owner had beaten them to the lock.
* Since both local and remote locks are managed by the same kernel locking code, local and remote processes can safely use file locks for mutual exclusion. Local processes have no fairness advantage compared to remote processes when contending to lock a region that has just been unlocked - the local lock manager enforces a strict first-come first-served model for both local and remote lockers.
Sponsored by: Isilon Systems PR: 95247 107555 115524 116679 MFC after: 2 weeks
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#
175294 |
|
13-Jan-2008 |
attilio |
VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in conjuction with 'thread' argument passing which is always curthread. Remove the unuseful extra-argument and pass explicitly curthread to lower layer functions, when necessary.
KPI results broken by this change, which should affect several ports, so version bumping and manpage update will be further committed.
Tested by: kris, pho, Diego Sardina <siarodx at gmail dot com>
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#
175202 |
|
09-Jan-2008 |
attilio |
vn_lock() is currently only used with the 'curthread' passed as argument. Remove this argument and pass curthread directly to underlying VOP_LOCK1() VFS method. This modify makes the code cleaner and in particular remove an annoying dependence helping next lockmgr() cleanup. KPI results, obviously, changed.
Manpage and FreeBSD_version will be updated through further commits.
As a side note, would be valuable to say that next commits will address a similar cleanup about VFS methods, in particular vop_lock1 and vop_unlock.
Tested by: Diego Sardina <siarodx at gmail dot com>, Andrea Di Pasquale <whyx dot it at gmail dot com>
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#
174975 |
|
29-Dec-2007 |
kib |
Plug the leaks in the present (hopefully, soon to be replaced) implementation of the linux_openat() for the quick MFC.
Reported and tested by: Peter Holm MFC after: 3 days
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#
172930 |
|
24-Oct-2007 |
rwatson |
Merge first in a series of TrustedBSD MAC Framework KPI changes from Mac OS X Leopard--rationalize naming for entry points to the following general forms:
mac_<object>_<method/action> mac_<object>_check_<method/action>
The previous naming scheme was inconsistent and mostly reversed from the new scheme. Also, make object types more consistent and remove spaces from object types that contain multiple parts ("posix_sem" -> "posixsem") to make mechanical parsing easier. Introduce a new "netinet" object type for certain IPv4/IPv6-related methods. Also simplify, slightly, some entry point names.
All MAC policy modules will need to be recompiled, and modules not updates as part of this commit will need to be modified to conform to the new KPI.
Sponsored by: SPARTA (original patches against Mac OS X) Obtained from: TrustedBSD Project, Apple Computer
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#
171216 |
|
04-Jul-2007 |
peter |
Don't add the 'pad' argument to the mmap/truncate/etc syscalls.
Submitted by: kensmith Approved by: re (kensmith)
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#
170486 |
|
10-Jun-2007 |
mjacob |
Ensure that newpath is always initialized, even for the error case.
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#
168355 |
|
04-Apr-2007 |
rwatson |
Replace custom file descriptor array sleep lock constructed using a mutex and flags with an sxlock. This leads to a significant and measurable performance improvement as a result of access to shared locking for frequent lookup operations, reduced general overhead, and reduced overhead in the event of contention. All of these are imported for threaded applications where simultaneous access to a shared file descriptor array occurs frequently. Kris has reported 2x-4x transaction rate improvements on 8-core MySQL benchmarks; smaller improvements can be expected for many workloads as a result of reduced overhead.
- Generally eliminate the distinction between "fast" and regular acquisisition of the filedesc lock; the plan is that they will now all be fast. Change all locking instances to either shared or exclusive locks.
- Correct a bug (pointed out by kib) in fdfree() where previously msleep() was called without the mutex held; sx_sleep() is now always called with the sxlock held exclusively.
- Universally hold the struct file lock over changes to struct file, rather than the filedesc lock or no lock. Always update the f_ops field last. A further memory barrier is required here in the future (discussed with jhb).
- Improve locking and reference management in linux_at(), which fails to properly acquire vnode references before using vnode pointers. Annotate improper use of vn_fullpath(), which will be replaced at a future date.
In fcntl(), we conservatively acquire an exclusive lock, even though in some cases a shared lock may be sufficient, which should be revisited. The dropping of the filedesc lock in fdgrowtable() is no longer required as the sxlock can be held over the sleep operation; we should consider removing that (pointed out by attilio).
Tested by: kris Discussed with: jhb, kris, attilio, jeff
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#
168014 |
|
29-Mar-2007 |
julian |
Implement the openat() linux syscall Submitted by: Roman Divacky (rdivacky@) MFC after: 2 weeks
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#
166087 |
|
18-Jan-2007 |
kib |
Forced commit to note that rev. 1.100 added support for LINUX_O_DIRECTORY, LINUX_O_DIRECT and LINUX_O_NOFOLLOW flags to linux_open().
Noted by: netchild
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#
166085 |
|
18-Jan-2007 |
kib |
Add support for LINUX_O_DIRECT, LINUX_O_DIRECT and LINUX_O_NOFOLLOW flags to open() [1]. Improve locking for accessing session control structures [2]. Try to document (most likely harmless) races in the code [3].
Based on submission by: Intron (intron at intron ac) [1] Reviewed by: jhb [2] Discussed with: netchild, rwatson, jhb [3]
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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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#
162585 |
|
23-Sep-2006 |
netchild |
MFp4: - Linux returns ENOPROTOOPT in a case of not supported opt to setsockopt. - Return EISDIR in pread() when arg is a directory. - Return EINVAL instead of EFAULT when namelen is not correct in accept(). - Return EINVAL instead of EACCESS if invalid access mode is entered in access(). - Return EINVAL instead of EADDRNOTAVAIL in a case of bad salen param to bind().
Submitted by: rdivacky Tested with: LTP (vfork01 fails now, but it seems to be a race and not caused by those changes) MFC after: 1 week
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#
162201 |
|
10-Sep-2006 |
netchild |
The Linux unlink syscall uses a different errno value when trying to unlink a directory.
PR: 102897 [1] Noticed by: Knut Anders Hatlen <kahatlen@gmail.com>, testrun with LTP [1] Submitted by: Marcin Cieslak <saper@SYSTEM.PL> Tested by: netchild (LTP test run)
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#
160276 |
|
11-Jul-2006 |
jhb |
- Add conditional VFS Giant locking to getdents_common() (linux ABIs), ibcs2_getdents(), ibcs2_read(), ogetdirentries(), svr4_sys_getdents(), and svr4_sys_getdents64() similar to that in getdirentries(). - Mark ibcs2_getdents(), ibcs2_read(), linux_getdents(), linux_getdents64(), linux_readdir(), ogetdirentries(), svr4_sys_getdents(), and svr4_sys_getdents64() MPSAFE.
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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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#
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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#
144987 |
|
13-Apr-2005 |
mdodd |
Add support for O_NOFOLLOW and O_DIRECT to Linux fcntl() F_GETFL/F_SETFL.
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#
140214 |
|
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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#
138353 |
|
03-Dec-2004 |
phk |
Do not blindly pass linux filesystem specific mount data across.
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#
138107 |
|
26-Nov-2004 |
phk |
Ignore MNT_NODEV option, it is implicit in choice of filesystem.
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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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#
132708 |
|
27-Jul-2004 |
phk |
Use kernel_vmount() instead of vfs_nmount().
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#
127059 |
|
16-Mar-2004 |
tjr |
Use vfs_nmount() to mount linprocfs filesystems in linux_mount(); linprocfs doesn't support the old mount interface.
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#
127057 |
|
16-Mar-2004 |
tjr |
Correct size argument passed to copyinstr() in linux_mount(): mntfromname and mntonname are both MNAMELEN characters long, not MFSNAMELEN.
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#
122892 |
|
19-Nov-2003 |
kan |
Do not call VOP_GETATTR in getdents function. It does not serve any purpose and the resulting vattr structure was ignored. In addition, the VOP_GETATTR call was made with no vnode lock held, resulting in vnode locking violation panic with debug kernels.
Reported by: truckman
Approved by: re@ (rwatson)
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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 |
|
10-Jun-2003 |
obrien |
Use __FBSDID().
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#
113917 |
|
23-Apr-2003 |
jhb |
Fix a lock order reversal. Unlock the proc before calling fget().
Reported by: kris
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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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#
111119 |
|
19-Feb-2003 |
imp |
Back out M_* changes, per decision of the TRB.
Approved by: trb
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#
109623 |
|
21-Jan-2003 |
alfred |
Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0. Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
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#
109153 |
|
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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#
107680 |
|
08-Dec-2002 |
iedowse |
Fix emulation of the fcntl64() syscall. In Linux, this is exactly the same as fcntl() except that it supports the new 64-bit file locking commands (LINUX_F_GETLK64 etc) that use the `flock64' structure. We had been interpreting all flock structures passed to fcntl64() as `struct flock64' instead of only the ones from F_*64 commands.
The glibc in linux_base-7 uses fcntl64() by default, but the bug was often non-fatal since the misinterpretation typically only causes junk to appear in the `l_len' field and most junk values are accepted as valid range lengths. The result is occasional EINVAL errors from F_SETLK and a few bytes after the supplied `struct flock' getting clobbered during F_GETLK.
PR: kern/37656 Reviewed by: marcel Approved by: re MFC after: 1 week
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102872 |
|
02-Sep-2002 |
iedowse |
Use the new kern_*() functions to avoid using the stack gap in linux_fcntl*() and linux_getcwd().
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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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#
102003 |
|
17-Aug-2002 |
rwatson |
In continuation of early fileop credential changes, modify fo_ioctl() to accept an 'active_cred' argument reflecting the credential of the thread initiating the ioctl operation.
- Change fo_ioctl() to accept active_cred; change consumers of the fo_ioctl() interface to generally pass active_cred from td->td_ucred. - In fifofs, initialize filetmp.f_cred to ap->a_cred so that the invocations of soo_ioctl() are provided access to the calling f_cred. Pass ap->a_td->td_ucred as the active_cred, but note that this is required because we don't yet distinguish file_cred and active_cred in invoking VOP's. - Update kqueue_ioctl() for its new argument. - Update pipe_ioctl() for its new argument, pass active_cred rather than td_ucred to MAC for authorization. - Update soo_ioctl() for its new argument. - Update vn_ioctl() for its new argument, use active_cred rather than td->td_ucred to authorize VOP_IOCTL() and the associated VOP_GETATTR().
Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
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#
101706 |
|
11-Aug-2002 |
rwatson |
Fix missing parens in MAC readdir() check. This fix was in the MAC branch, but apparently didn't get moved over when it was made.
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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#
99687 |
|
09-Jul-2002 |
robert |
Move the switch statement labels for the explicit 64-bit command arguments into the correct function, linux_fcntl64(), and thus out of the scope of a compilation for the alpha platform.
Requested by: obrien
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#
99670 |
|
09-Jul-2002 |
robert |
Enable emulation of the F_GETLK64, F_SETLK64, and F_SETLKW64 lock commands arguments to linux_fcntl64().
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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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#
91406 |
|
27-Feb-2002 |
jhb |
Simple p_ucred -> td_ucred changes to start using the per-thread ucred reference.
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#
91140 |
|
23-Feb-2002 |
tanimura |
Lock struct pgrp, session and sigio.
New locks are:
- pgrpsess_lock which locks the whole pgrps and sessions, - pg_mtx which protects the pgrp members, and - s_mtx which protects the session members.
Please refer to sys/proc.h for the coverage of these locks.
Changes on the pgrp/session interface:
- pgfind() needs the pgrpsess_lock held.
- The caller of enterpgrp() is responsible to allocate a new pgrp and session.
- Call enterthispgrp() in order to enter an existing pgrp.
- pgsignal() requires a pgrp lock held.
Reviewed by: jhb, alfred Tested on: cvsup.jp.FreeBSD.org (which is a quad-CPU machine running -current)
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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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#
89311 |
|
13-Jan-2002 |
alfred |
Remove unused variable.
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#
89306 |
|
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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#
85022 |
|
16-Oct-2001 |
marcel |
Implement linux_chown and linux_lchown. The fchown syscall maps directly to the native syscall, because no filename handling needs to be done.
Tested by: Martin Blapp <mb@imp.ch>
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#
83382 |
|
12-Sep-2001 |
jhb |
Whitespace fix.
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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 |
|
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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#
82518 |
|
29-Aug-2001 |
gallatin |
Fix linux_getcwd() so that if the cwd isn't cached (__getcwd() fails), the cwd is looked up inside the kernel. The native getcwd() in libc handles this in userland if __getcwd() fails.
Obtained from: NetBSD via OpenBSD Tested by: Chris Casey <chriss@phys.ksu.edu>, Markus Holmberg <markush@acc.umu.se> Reviewed by: Darrell Anderson <anderson@cs.duke.edu> PR: kern/24315
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#
76166 |
|
01-May-2001 |
markm |
Undo part of the tangle of having sys/lock.h and sys/mutex.h included in other "system" header files.
Also help the deprecation of lockmgr.h by making it a sub-include of sys/lock.h and removing sys/lockmgr.h form kernel .c files.
Sort sys/*.h includes where possible in affected files.
OK'ed by: bde (with reservations)
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#
73286 |
|
01-Mar-2001 |
adrian |
Reviewed by: jlemon
An initial tidyup of the mount() syscall and VFS mount code.
This code replaces the earlier work done by jlemon in an attempt to make linux_mount() work.
* the guts of the mount work has been moved into vfs_mount().
* move `type', `path' and `flags' from being userland variables into being kernel variables in vfs_mount(). `data' remains a pointer into userspace.
* Attempt to verify the `type' and `path' strings passed to vfs_mount() aren't too long.
* rework mount() and linux_mount() to take the userland parameters (besides data, as mentioned) and pass kernel variables to vfs_mount(). (linux_mount() already did this, I've just tidied it up a little more.)
* remove the copyin*() stuff for `path'. `data' still requires copyin*() since its a pointer into userland.
* set `mount->mnt_statf_mntonname' in vfs_mount() rather than in each filesystem. This variable is generally initialised with `path', and each filesystem can override it if they want to.
* NOTE: f_mntonname is intiailised with "/" in the case of a root mount.
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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)
|
#
72538 |
|
16-Feb-2001 |
jlemon |
Add mount syscall to linux emulation. Also improve emulation of reboot.
|
#
71699 |
|
26-Jan-2001 |
jhb |
Back out proc locking to protect p_ucred for obtaining additional references along with the actual obtaining of additional references.
|
#
70061 |
|
15-Dec-2000 |
jhb |
Lock access to proc members.
Glanced over by: marcel
|
#
69539 |
|
02-Dec-2000 |
marcel |
Don't auto-generate the syscalls.
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#
68662 |
|
13-Nov-2000 |
marcel |
Fix F_SETOWN on pipes. Linux returns EINVAL while we send a SIGIO signal. There's at least 1 program that is known to break. Submitted patch has been edited to match current code.
MFC: yes Submitted by: bde
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#
68583 |
|
10-Nov-2000 |
marcel |
Revert auto-generation. The Alpha port is broken. Syncing with it is wrong.
|
#
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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#
68347 |
|
05-Nov-2000 |
marcel |
Fix getdents syscall.
The offset field in struct dirent was set to the offset of the next dirent in rev 1.36. The offset was calculated from the current offset and the record length. This offset does not necessarily match the real offset when we are using cookies. Therefore, also use the cookies to set the offset field in struct dirent if we're using cookies to iterate through the dirents.
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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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#
64905 |
|
21-Aug-2000 |
marcel |
Update include directives and remove linux_execve.
|
#
63285 |
|
16-Jul-2000 |
marcel |
Implement pread and pwrite.
PR: 17991 Submitted by: Geoffrey Speicher <geoff@caribbean.sea-incorporated.com>
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#
63233 |
|
15-Jul-2000 |
marcel |
Simplify the F_GETOWN and F_SETOWN fcntl commands. The workaround is not needed since the FreeBSD native implementation switched from TIOC{G|S}PGRP to FIO{G|S}ETOWN (kern_descrip.c rev 1.55).
PR: 16946 Submitted by: Victor Salaman <salaman@teknos.com>
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#
53713 |
|
26-Nov-1999 |
marcel |
Implement fdatasync in terms of fsync. The regeneration of proto.h, syscall.h and sysent.h was probably forgotten after the last change syscalls.master.
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#
53009 |
|
08-Nov-1999 |
phk |
simplify check for device.
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#
52421 |
|
21-Oct-1999 |
marcel |
Fix the duplicate filenames that are the result of using getdents.
glibc2 defines struct dirent differently than the Linux kernel does. The getdents function therefore needs to read a heuristically defined number of kernel dirents to satisfy the request. In case where too many kernel dirents have been read, the function lseeks on the directory so that a next call will start with the right dirent. The offset used in lseeking is the offset-field in the last dirent passed to the application. This can only mean that the offset-field holds the offset of the next dirent and not the offset of the dirent itself.
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#
51654 |
|
25-Sep-1999 |
phk |
This patch clears the way for removing a number of tty related fields in struct cdevsw:
d_stop moved to struct tty. d_reset already unused. d_devtotty linkage now provided by dev_t->si_tty.
These fields will be removed from struct cdevsw together with d_params and d_maxio Real Soon Now.
The changes in this patch consist of:
initialize dev->si_tty in *_open() initialize tty->t_stop remove devtotty functions rename ttpoll to ttypoll a few adjustments to these changes in the generic code a bump of __FreeBSD_version add a couple of FreeBSD tags
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#
51418 |
|
19-Sep-1999 |
green |
This is what was "fdfix2.patch," a fix for fd sharing. It's pretty far-reaching in fd-land, so you'll want to consult the code for changes. The biggest change is that now, you don't use fp->f_ops->fo_foo(fp, bar) but instead fo_foo(fp, bar), which increments and decrements the fp refcount upon entry and exit. Two new calls, fhold() and fdrop(), are provided. Each does what it seems like it should, and if fdrop() brings the refcount to zero, the fd is freed as well.
Thanks to peter ("to hell with it, it looks ok to me.") for his review. Thanks to msmith for keeping me from putting locks everywhere :)
Reviewed by: peter
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#
51348 |
|
17-Sep-1999 |
marcel |
Fix getcwd. It must return the length of the path including the terminating 0. While I'm here, fix style and debug printf.
Fix derived from patch by: Darryl Okahata <darrylo@sr.hp.com>
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#
50477 |
|
27-Aug-1999 |
peter |
$Id$ -> $FreeBSD$
|
#
49845 |
|
15-Aug-1999 |
marcel |
Fix bug in the fcntl syscall where 'arg' was not set properly.
PR: 12147 Submitted by: Allan Saddi <asaddi@philosophysw.com>
|
#
49788 |
|
14-Aug-1999 |
marcel |
Implementation of the linux_getcwd syscall.
|
#
49676 |
|
13-Aug-1999 |
marcel |
In doing lock type conversion (struct flock), make sure that carbage in results in deterministic behaviour. In this case known garbage out. The fix is different than suggested in the PR.
PR: 12749 Originator: Boris Nikolaus <boris@cs.tu-berlin.de>
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#
49662 |
|
12-Aug-1999 |
marcel |
Use a wrapper for the link syscall that does name translations.
PR: 12749 Submitted by: Boris Nikolaus <boris@cs.tu-berlin.de>
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#
48885 |
|
18-Jul-1999 |
phk |
Use the vn_todev() function, rather than VOP_GETATTR
|
#
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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#
46676 |
|
08-May-1999 |
phk |
I got tired of seeing all the cdevsw[major(foo)] all over the place.
Made a new (inline) function devsw(dev_t dev) and substituted it.
Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)
DEVFS will eventually benefit from this change too.
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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.
|
#
42499 |
|
10-Jan-1999 |
eivind |
Use truncate() instead of otruncate() - step on the way to stopping the linulator from depending on COMPAT_43.
|
#
39978 |
|
05-Oct-1998 |
jfieber |
Make async I/O on a socket work.
Although the current Sybase license does not permit running under emulation, FreeBSD 3.0 is now "Sybase Ready" should the license change.
|
#
37950 |
|
29-Jul-1998 |
bde |
Fixed print format errors.
|
#
34941 |
|
29-Mar-1998 |
peter |
The linux chown syscall is more like lchown, a new chown syscall that follows links was added.
|
#
32266 |
|
04-Jan-1998 |
jmb |
sigh....forgot to update the DEBUG printf to show both the path and the length args to linux emulation truncate()
Submitted by: jmb
|
#
32265 |
|
04-Jan-1998 |
jmb |
length argument to truncate() in linux emulation was not being set copied to the bsd arguments.. frequently, resulting in files of over 100MB of NULs
PR: 386/5044 Reviewed by: jmb Submitted by: (Richard Winkel) rich@math.missouri.edu
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#
31784 |
|
16-Dec-1997 |
eivind |
Make hidden COMPAT_43 dependencies explict. Options in headers is a pain in the backside.
|
#
31561 |
|
05-Dec-1997 |
bde |
Don't include <sys/lock.h> in headers when only `struct simplelock' is required. Fixed everything that depended on the pollution.
|
#
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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#
24672 |
|
06-Apr-1997 |
dfr |
Remove dependancy on UFS' DIRBLKSIZ definition.
2.2 candidate.
Submitted by: bde
|
#
24654 |
|
05-Apr-1997 |
dfr |
Fix linux_getdents so that it can cope with filesystems which translate the directory format (ext2fs, cd9660). For these filesystems, it must use cookies to find the correct offset to use for subsequent reads. Without it, linux /bin/ls tends to loop re-reading the same block over and over again.
2.2 candidate.
|
#
24203 |
|
24-Mar-1997 |
bde |
Don't include <sys/ioctl.h> in the kernel. Stage 1: don't include it when it is not used. In most cases, the reasons for including it went away when the special ioctl headers became self-sufficient.
|
#
22975 |
|
22-Feb-1997 |
peter |
Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not ready for it yet.
|
#
22543 |
|
10-Feb-1997 |
mpp |
Make this compile again after the Lite2 merge.
VOP_UNLOCK was being called with the wrong mumber of arguments.
Also silenced a -Wall warning.
|
#
22521 |
|
10-Feb-1997 |
dyson |
This is the kernel Lite/2 commit. There are some requisite userland changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes.
The system boots and can mount UFS filesystems.
Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed.
Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
|
#
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.
|
#
14465 |
|
10-Mar-1996 |
peter |
Fix the getdents() emulation, the Linux ELF libraries use this, and this code was not quite right (linux has a readdir and getdents syscall, with the same args. readdir only returns one entry and uses a mutant dirent structure. This code was also returning the mutant form for getdents as well. My fault for missing this before.)
|
#
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.
|
#
12858 |
|
15-Dec-1995 |
peter |
Clean up some warnings by using the generated structures in <sys/sysproto.h> for passing to the bsd system calls, rather than inveninting our own equivalent structures.
|
#
12458 |
|
22-Nov-1995 |
bde |
Completed function declarations and added prototypes.
Removed some unnecessary #includes.
Fixed warnings about nested externs.
|
#
11418 |
|
10-Oct-1995 |
swallace |
Fix the getdirentries of ibcs2 to handle uneven DIRBLKSIZ offsets. Slight modification from previous fix.
Also, fix problem where an entry would be skipped next call if not enough room in buffer current call.
|
#
10355 |
|
27-Aug-1995 |
swallace |
Modified linux_readdir() function to properly handle Linux readdir() calls with a byte size of 1. This special case was not correctly emulated. Now programs such as a simple 'ls' to a commercial Macintosh emulator called 'executor' will work correctly.
|
#
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.
|