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0c21a60c |
| 05-Dec-2010 |
Marcel Moolenaar <marcel@FreeBSD.org> |
svn+ssh://svn.freebsd.org/base/head@216199
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29d0dcdd |
| 14-Nov-2010 |
Dimitry Andric <dim@FreeBSD.org> |
Sync: merge r215273 through r215318 from ^/head.
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2baa5cdd |
| 14-Nov-2010 |
Rebecca Cran <brucec@FreeBSD.org> |
Add some descriptions to sys/kern sysctls.
PR: kern/148710 Tested by: Chip Camden <sterling at camdensoftware.com> MFC after: 1 week
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Revision tags: release/8.1.0_cvs, release/8.1.0 |
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95bf6530 |
| 12-Jun-2010 |
Marcel Moolenaar <marcel@FreeBSD.org> |
Merge svn+ssh://svn.freebsd.org/base/head@209086
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c1e34abf |
| 11-Jun-2010 |
Ivan Voras <ivoras@FreeBSD.org> |
In another move to join with the age of the Fruitbat, increase SYSV shared resources defaults beyond absolute minimums.
The new values are chosen mostly by magic. They are still fairly small and wil
In another move to join with the age of the Fruitbat, increase SYSV shared resources defaults beyond absolute minimums.
The new values are chosen mostly by magic. They are still fairly small and will need increasing for large installations (especially SHMMAX). However, they are now enough to e.g. start PostgreSQL installations with ~~300 users and nearly 512 MB of shared buffers.
Reviewed by: A short discussion on hackers@
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a4bf5fb9 |
| 28-Apr-2010 |
Kirk McKusick <mckusick@FreeBSD.org> |
Update to current version of head.
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db5805dd |
| 07-Apr-2010 |
Konstantin Belousov <kib@FreeBSD.org> |
MFC r205323: Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding sysv_{msg,sem,shm}.c files.
Mark SysV IPC freebsd32 syscalls as NOSTD and add required SYSCALL_INIT_HELPER/SY
MFC r205323: Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding sysv_{msg,sem,shm}.c files.
Mark SysV IPC freebsd32 syscalls as NOSTD and add required SYSCALL_INIT_HELPER/SYSCALL32_INIT_HELPERs to provide auto register/unregister on module load.
This makes COMPAT_FREEBSD32 functional with SysV IPC compiled and loaded as modules.
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c4b877e6 |
| 22-Mar-2010 |
Marcel Moolenaar <marcel@FreeBSD.org> |
Merge svn+ssh://svn.freebsd.org/base/head@205454
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Revision tags: release/7.3.0_cvs, release/7.3.0 |
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75d633cb |
| 19-Mar-2010 |
Konstantin Belousov <kib@FreeBSD.org> |
Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding sysv_{msg,sem,shm}.c files.
Mark SysV IPC freebsd32 syscalls as NOSTD and add required SYSCALL_INIT_HELPER/SYSCALL32_INIT_
Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding sysv_{msg,sem,shm}.c files.
Mark SysV IPC freebsd32 syscalls as NOSTD and add required SYSCALL_INIT_HELPER/SYSCALL32_INIT_HELPERs to provide auto register/unregister on module load.
This makes COMPAT_FREEBSD32 functional with SysV IPC compiled and loaded as modules.
Reviewed by: jhb MFC after: 2 weeks
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Revision tags: release/8.0.0_cvs, release/8.0.0 |
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10b3b545 |
| 17-Sep-2009 |
Dag-Erling Smørgrav <des@FreeBSD.org> |
Merge from head
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7d4b968b |
| 17-Sep-2009 |
Dag-Erling Smørgrav <des@FreeBSD.org> |
Merge from head up to r188941 (last revision before the USB stack switch)
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09c817ba |
| 03-Jul-2009 |
Oleksandr Tymoshenko <gonzo@FreeBSD.org> |
- MFC
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b648d480 |
| 24-Jun-2009 |
John Baldwin <jhb@FreeBSD.org> |
Change the ABI of some of the structures used by the SYSV IPC API: - The uid/cuid members of struct ipc_perm are now uid_t instead of unsigned short. - The gid/cgid members of struct ipc_perm are n
Change the ABI of some of the structures used by the SYSV IPC API: - The uid/cuid members of struct ipc_perm are now uid_t instead of unsigned short. - The gid/cgid members of struct ipc_perm are now gid_t instead of unsigned short. - The mode member of struct ipc_perm is now mode_t instead of unsigned short (this is merely a style bug). - The rather dubious padding fields for ABI compat with SV/I386 have been removed from struct msqid_ds and struct semid_ds. - The shm_segsz member of struct shmid_ds is now a size_t instead of an int. This removes the need for the shm_bsegsz member in struct shmid_kernel and should allow for complete support of SYSV SHM regions >= 2GB. - The shm_nattch member of struct shmid_ds is now an int instead of a short. - The shm_internal member of struct shmid_ds is now gone. The internal VM object pointer for SHM regions has been moved into struct shmid_kernel. - The existing __semctl(), msgctl(), and shmctl() system call entries are now marked COMPAT7 and new versions of those system calls which support the new ABI are now present. - The new system calls are assigned to the FBSD-1.1 version in libc. The FBSD-1.0 symbols in libc now refer to the old COMPAT7 system calls. - A simplistic framework for tagging system calls with compatibility symbol versions has been added to libc. Version tags are added to system calls by adding an appropriate __sym_compat() entry to src/lib/libc/incldue/compat.h. [1]
PR: kern/16195 kern/113218 bin/129855 Reviewed by: arch@, rwatson Discussed with: kan, kib [1]
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45f48220 |
| 24-Jun-2009 |
John Baldwin <jhb@FreeBSD.org> |
Deprecate the msgsys(), semsys(), and shmsys() system calls by moving them under COMPAT_FREEBSD[4567]. Starting with FreeBSD 5.0 the SYSV IPC API was implemented via direct system calls (e.g. msgctl
Deprecate the msgsys(), semsys(), and shmsys() system calls by moving them under COMPAT_FREEBSD[4567]. Starting with FreeBSD 5.0 the SYSV IPC API was implemented via direct system calls (e.g. msgctl(), msgget(), etc.) rather than indirecting through the var-args *sys() system calls. The shmsys() system call was already effectively deprecated for all but COMPAT_FREEBSD4 already as its implementation for the !COMPAT_FREEBSD4 case was to simply invoke nosys().
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71361470 |
| 24-Jun-2009 |
John Baldwin <jhb@FreeBSD.org> |
- Move syscall function argument structure types to be just above the relevenat system call function. - Whitespace fixes.
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7e857dd1 |
| 12-Jun-2009 |
Oleksandr Tymoshenko <gonzo@FreeBSD.org> |
- Merge from HEAD
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bcf11e8d |
| 05-Jun-2009 |
Robert Watson <rwatson@FreeBSD.org> |
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 du
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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0304c731 |
| 27-May-2009 |
Jamie Gritton <jamie@FreeBSD.org> |
Add hierarchical jails. A jail may further virtualize its environment by creating a child jail, which is visible to that jail and to any parent jails. Child jails may be restricted more than their
Add hierarchical jails. A jail may further virtualize its environment by creating a child jail, which is visible to that jail and to any parent jails. Child jails may be restricted more than their parents, but never less. Jail names reflect this hierarchy, being MIB-style dot-separated strings.
Every thread now points to a jail, the default being prison0, which contains information about the physical system. Prison0's root directory is the same as rootvnode; its hostname is the same as the global hostname, and its securelevel replaces the global securelevel. Note that the variable "securelevel" has actually gone away, which should not cause any problems for code that properly uses securelevel_gt() and securelevel_ge().
Some jail-related permissions that were kept in global variables and set via sysctls are now per-jail settings. The sysctls still exist for backward compatibility, used only by the now-deprecated jail(2) system call.
Approved by: bz (mentor)
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Revision tags: release/7.2.0_cvs, release/7.2.0 |
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9c797940 |
| 13-Apr-2009 |
Oleksandr Tymoshenko <gonzo@FreeBSD.org> |
- Merge from HEAD
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1fa80eb1 |
| 30-Mar-2009 |
Christian Brueffer <brueffer@FreeBSD.org> |
Fix memory leak in semunload().
PR: 133064 Submitted by: Mateusz Guzik <mjguzik@gmail.com> MFC after: 1 week
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bad3b688 |
| 18-Jan-2009 |
Oleksandr Tymoshenko <gonzo@FreeBSD.org> |
Sync with head
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137cf3b6 |
| 15-Jan-2009 |
Konstantin Belousov <kib@FreeBSD.org> |
Lock the semaphore identifier lock during semaphore initialization to guarantee atomicity of the operation for other semaphore consumers. In particular, this should guard against access to the semaph
Lock the semaphore identifier lock during semaphore initialization to guarantee atomicity of the operation for other semaphore consumers. In particular, this should guard against access to the semaphore with not done or partially done MAC label assignment.
Reviewed by: rwatson MFC after: 1 month
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90a017ba |
| 14-Jan-2009 |
Konstantin Belousov <kib@FreeBSD.org> |
It seems that there are at least three issues with IPC_RMID operation on SysV semaphores.
The squeeze of the semaphore array in the kern_semctl() modifies sem_base for the semaphores with sem_ba
It seems that there are at least three issues with IPC_RMID operation on SysV semaphores.
The squeeze of the semaphore array in the kern_semctl() modifies sem_base for the semaphores with sem_base greater then sem_base of the removed semaphore, as well as the values of the semaphores, without locking their mutex. This can lead to (killable) hangs or unexpected behaviour of the processes performing any sem operations while other process does IPC_RMID.
The semexit_myhook() eventhandler unlocks SEMUNDO_LOCK() while accessing *suptr. This allows for IPC_RMID for the sem id to be performed in parallel with undo hook referenced by the current undo structure. This leads to the panic("semexit - semid not allocated") [1].
The semaphore creation is protected by Giant, while IPC_RMID is done while only semaphore mutex is held. This seems to result in invalid values for semtot, causing random ENOSPC error returns [2].
Redo the locking of the semaphores lifetime cycle. Delegate the sem_mtx to the sole purpose of protecting semget() and semctl(IPC_RMID). Introduce new sem_undo_mtx to protect SEM_UNDO handling. Remove the Giant remnants from the code. Note that mac_sysvsem_check_semget() and mac_sysvsem_create() are now called while sem_mtx is held, as well as mac_sysvsem_cleanup() [3].
When semaphore is removed, acquire semaphore locks for all semaphores with sem_base that is going to be changed by squeeze of the sema array. The lock order is not important there, because the region is protected by sem_mtx.
Organize both used and free sem_undo structures into the lists, protected by sem_undo_mtx. In semexit_myhook(), remove sem_undo structure that is being processed, from used list, without putting it onto the free to prevent modifications by other threads. This allows for sem_undo_lock to be dropped to acquire individial semaphore locks without violating lock order. Since IPC_RMID may no longer find this sem_undo, do tolerate references to unallocated semaphores in undo structure, and check sequential number to not undo unrelated semaphore with the same id.
While there, convert functions definitions to ANSI C and fix small style(9) glitches.
Reported by: Omer Faruk Sen <omerfsen gmail com> [1], pho [2] Reviewed by: rwatson [3] Tested by: pho MFC after: 1 month
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Revision tags: release/7.1.0_cvs, release/7.1.0, release/6.4.0_cvs, release/6.4.0 |
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23c8064e |
| 19-Jun-2008 |
Oleksandr Tymoshenko <gonzo@FreeBSD.org> |
Renew semaphore's pointer after wakeup since during msleep sem_base may have been modified by destroying one of semaphores and semptr would not be valid in this case.
PR: kern/123731
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Revision tags: release/7.0.0_cvs, release/7.0.0, release/6.3.0_cvs, release/6.3.0 |
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30d239bc |
| 24-Oct-2007 |
Robert Watson <rwatson@FreeBSD.org> |
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_<objec
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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