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* Move uio enums to sys/_uio.h.Brooks Davis2018-03-271-1/+1
| | | | | | | | | | | | | | | | | Include _uio.h instead of uio.h in several headers to reduce header polution. Fix a few places that relied on header polution to get the uio.h header. I have not moved struct uio as many more things that use it rely on header polution to get other definitions from uio.h. Reviewed by: cem, kib, markj Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14811 Notes: svn path=/head/; revision=331621
* sys: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-201-0/+2
| | | | | | | | | | | | | | | | | Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Notes: svn path=/head/; revision=326023
* Renumber copyright clause 4Warner Losh2017-02-281-1/+1
| | | | | | | | | | | | Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96 Notes: svn path=/head/; revision=314436
* Allow some dotdot lookups in capability mode.Konstantin Belousov2016-11-021-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | If dotdot lookup does not escape from the file descriptor passed as the lookup root, we can allow the component traversal. Track the directories traversed, and check the result of dotdot lookup against the recorded list of the directory vnodes. Dotdot lookups are enabled by sysctl vfs.lookup_cap_dotdot, currently disabled by default until more verification of the approach is done. Disallow non-local filesystems for dotdot, since remote server might conspire with the local process to allow it to escape the namespace. This might be too cautious, provide the knob vfs.lookup_cap_dotdot_nonlocal to override as well. Idea by: rwatson Discussed with: emaste, jonathan, rwatson Reviewed by: mjg (previous version) Tested by: pho (previous version) Sponsored by: The FreeBSD Foundation MFC after: 2 week Differential revision: https://reviews.freebsd.org/D8110 Notes: svn path=/head/; revision=308212
* Remove cn_consume from 'struct componentname'. It was never set to anythingEdward Tomasz Napierala2016-03-121-1/+0
| | | | | | | | | | | | other than 0. Reviewed by: kib@ MFC after: 1 month Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D5611 Notes: svn path=/head/; revision=296716
* Change the cap_rights_t type from uint64_t to a structure that we can extendPawel Jakub Dawidek2013-09-051-23/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | in the future in a backward compatible (API and ABI) way. The cap_rights_t represents capability rights. We used to use one bit to represent one right, but we are running out of spare bits. Currently the new structure provides place for 114 rights (so 50 more than the previous cap_rights_t), but it is possible to grow the structure to hold at least 285 rights, although we can make it even larger if 285 rights won't be enough. The structure definition looks like this: struct cap_rights { uint64_t cr_rights[CAP_RIGHTS_VERSION + 2]; }; The initial CAP_RIGHTS_VERSION is 0. The top two bits in the first element of the cr_rights[] array contain total number of elements in the array - 2. This means if those two bits are equal to 0, we have 2 array elements. The top two bits in all remaining array elements should be 0. The next five bits in all array elements contain array index. Only one bit is used and bit position in this five-bits range defines array index. This means there can be at most five array elements in the future. To define new right the CAPRIGHT() macro must be used. The macro takes two arguments - an array index and a bit to set, eg. #define CAP_PDKILL CAPRIGHT(1, 0x0000000000000800ULL) We still support aliases that combine few rights, but the rights have to belong to the same array element, eg: #define CAP_LOOKUP CAPRIGHT(0, 0x0000000000000400ULL) #define CAP_FCHMOD CAPRIGHT(0, 0x0000000000002000ULL) #define CAP_FCHMODAT (CAP_FCHMOD | CAP_LOOKUP) There is new API to manage the new cap_rights_t structure: cap_rights_t *cap_rights_init(cap_rights_t *rights, ...); void cap_rights_set(cap_rights_t *rights, ...); void cap_rights_clear(cap_rights_t *rights, ...); bool cap_rights_is_set(const cap_rights_t *rights, ...); bool cap_rights_is_valid(const cap_rights_t *rights); void cap_rights_merge(cap_rights_t *dst, const cap_rights_t *src); void cap_rights_remove(cap_rights_t *dst, const cap_rights_t *src); bool cap_rights_contains(const cap_rights_t *big, const cap_rights_t *little); Capability rights to the cap_rights_init(), cap_rights_set(), cap_rights_clear() and cap_rights_is_set() functions are provided by separating them with commas, eg: cap_rights_t rights; cap_rights_init(&rights, CAP_READ, CAP_WRITE, CAP_FSTAT); There is no need to terminate the list of rights, as those functions are actually macros that take care of the termination, eg: #define cap_rights_set(rights, ...) \ __cap_rights_set((rights), __VA_ARGS__, 0ULL) void __cap_rights_set(cap_rights_t *rights, ...); Thanks to using one bit as an array index we can assert in those functions that there are no two rights belonging to different array elements provided together. For example this is illegal and will be detected, because CAP_LOOKUP belongs to element 0 and CAP_PDKILL to element 1: cap_rights_init(&rights, CAP_LOOKUP | CAP_PDKILL); Providing several rights that belongs to the same array's element this way is correct, but is not advised. It should only be used for aliases definition. This commit also breaks compatibility with some existing Capsicum system calls, but I see no other way to do that. This should be fine as Capsicum is still experimental and this change is not going to 9.x. Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=255219
* Merge Capsicum overhaul:Pawel Jakub Dawidek2013-03-021-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Capability is no longer separate descriptor type. Now every descriptor has set of its own capability rights. - The cap_new(2) system call is left, but it is no longer documented and should not be used in new code. - The new syscall cap_rights_limit(2) should be used instead of cap_new(2), which limits capability rights of the given descriptor without creating a new one. - The cap_getrights(2) syscall is renamed to cap_rights_get(2). - If CAP_IOCTL capability right is present we can further reduce allowed ioctls list with the new cap_ioctls_limit(2) syscall. List of allowed ioctls can be retrived with cap_ioctls_get(2) syscall. - If CAP_FCNTL capability right is present we can further reduce fcntls that can be used with the new cap_fcntls_limit(2) syscall and retrive them with cap_fcntls_get(2). - To support ioctl and fcntl white-listing the filedesc structure was heavly modified. - The audit subsystem, kdump and procstat tools were updated to recognize new syscalls. - Capability rights were revised and eventhough I tried hard to provide backward API and ABI compatibility there are some incompatible changes that are described in detail below: CAP_CREATE old behaviour: - Allow for openat(2)+O_CREAT. - Allow for linkat(2). - Allow for symlinkat(2). CAP_CREATE new behaviour: - Allow for openat(2)+O_CREAT. Added CAP_LINKAT: - Allow for linkat(2). ABI: Reuses CAP_RMDIR bit. - Allow to be target for renameat(2). Added CAP_SYMLINKAT: - Allow for symlinkat(2). Removed CAP_DELETE. Old behaviour: - Allow for unlinkat(2) when removing non-directory object. - Allow to be source for renameat(2). Removed CAP_RMDIR. Old behaviour: - Allow for unlinkat(2) when removing directory. Added CAP_RENAMEAT: - Required for source directory for the renameat(2) syscall. Added CAP_UNLINKAT (effectively it replaces CAP_DELETE and CAP_RMDIR): - Allow for unlinkat(2) on any object. - Required if target of renameat(2) exists and will be removed by this call. Removed CAP_MAPEXEC. CAP_MMAP old behaviour: - Allow for mmap(2) with any combination of PROT_NONE, PROT_READ and PROT_WRITE. CAP_MMAP new behaviour: - Allow for mmap(2)+PROT_NONE. Added CAP_MMAP_R: - Allow for mmap(PROT_READ). Added CAP_MMAP_W: - Allow for mmap(PROT_WRITE). Added CAP_MMAP_X: - Allow for mmap(PROT_EXEC). Added CAP_MMAP_RW: - Allow for mmap(PROT_READ | PROT_WRITE). Added CAP_MMAP_RX: - Allow for mmap(PROT_READ | PROT_EXEC). Added CAP_MMAP_WX: - Allow for mmap(PROT_WRITE | PROT_EXEC). Added CAP_MMAP_RWX: - Allow for mmap(PROT_READ | PROT_WRITE | PROT_EXEC). Renamed CAP_MKDIR to CAP_MKDIRAT. Renamed CAP_MKFIFO to CAP_MKFIFOAT. Renamed CAP_MKNODE to CAP_MKNODEAT. CAP_READ old behaviour: - Allow pread(2). - Disallow read(2), readv(2) (if there is no CAP_SEEK). CAP_READ new behaviour: - Allow read(2), readv(2). - Disallow pread(2) (CAP_SEEK was also required). CAP_WRITE old behaviour: - Allow pwrite(2). - Disallow write(2), writev(2) (if there is no CAP_SEEK). CAP_WRITE new behaviour: - Allow write(2), writev(2). - Disallow pwrite(2) (CAP_SEEK was also required). Added convinient defines: #define CAP_PREAD (CAP_SEEK | CAP_READ) #define CAP_PWRITE (CAP_SEEK | CAP_WRITE) #define CAP_MMAP_R (CAP_MMAP | CAP_SEEK | CAP_READ) #define CAP_MMAP_W (CAP_MMAP | CAP_SEEK | CAP_WRITE) #define CAP_MMAP_X (CAP_MMAP | CAP_SEEK | 0x0000000000000008ULL) #define CAP_MMAP_RW (CAP_MMAP_R | CAP_MMAP_W) #define CAP_MMAP_RX (CAP_MMAP_R | CAP_MMAP_X) #define CAP_MMAP_WX (CAP_MMAP_W | CAP_MMAP_X) #define CAP_MMAP_RWX (CAP_MMAP_R | CAP_MMAP_W | CAP_MMAP_X) #define CAP_RECV CAP_READ #define CAP_SEND CAP_WRITE #define CAP_SOCK_CLIENT \ (CAP_CONNECT | CAP_GETPEERNAME | CAP_GETSOCKNAME | CAP_GETSOCKOPT | \ CAP_PEELOFF | CAP_RECV | CAP_SEND | CAP_SETSOCKOPT | CAP_SHUTDOWN) #define CAP_SOCK_SERVER \ (CAP_ACCEPT | CAP_BIND | CAP_GETPEERNAME | CAP_GETSOCKNAME | \ CAP_GETSOCKOPT | CAP_LISTEN | CAP_PEELOFF | CAP_RECV | CAP_SEND | \ CAP_SETSOCKOPT | CAP_SHUTDOWN) Added defines for backward API compatibility: #define CAP_MAPEXEC CAP_MMAP_X #define CAP_DELETE CAP_UNLINKAT #define CAP_MKDIR CAP_MKDIRAT #define CAP_RMDIR CAP_UNLINKAT #define CAP_MKFIFO CAP_MKFIFOAT #define CAP_MKNOD CAP_MKNODAT #define CAP_SOCK_ALL (CAP_SOCK_CLIENT | CAP_SOCK_SERVER) Sponsored by: The FreeBSD Foundation Reviewed by: Christoph Mallon <christoph.mallon@gmx.de> Many aspects discussed with: rwatson, benl, jonathan ABI compatibility discussed with: kib Notes: svn path=/head/; revision=247602
* Remove redundant space.Pawel Jakub Dawidek2013-02-171-1/+1
| | | | Notes: svn path=/head/; revision=246903
* - Add NOCAPCHECK flag to namei that allows lookup to work even if the processPawel Jakub Dawidek2012-11-271-1/+2
| | | | | | | | | | | | | | | is in capability mode. - Add VN_OPEN_NOCAPCHECK flag for vn_open_cred() to will ne converted into NOCAPCHECK namei flag. This functionality will be used to enable core dumps for sandboxed processes. Reviewed by: rwatson Obtained from: WHEEL Systems MFC after: 2 weeks Notes: svn path=/head/; revision=243612
* Remove the support for using non-mpsafe filesystem modules.Konstantin Belousov2012-10-221-4/+0
| | | | | | | | | | | | | | | In particular, do not lock Giant conditionally when calling into the filesystem module, remove the VFS_LOCK_GIANT() and related macros. Stop handling buffers belonging to non-mpsafe filesystems. The VFS_VERSION is bumped to indicate the interface change which does not result in the interface signatures changes. Conducted and reviewed by: attilio Tested by: pho Notes: svn path=/head/; revision=241896
* Update LOCKLEAF comment: it should say "vnode".Sergey Kandaurov2011-12-291-1/+1
| | | | | | | Inspired by PR docs/11596. Notes: svn path=/head/; revision=228952
* Allow Capsicum capabilities to delegate constrainedJonathan Anderson2011-08-131-3/+15
| | | | | | | | | | | | | | | | | | | | access to file system subtrees to sandboxed processes. - Use of absolute paths and '..' are limited in capability mode. - Use of absolute paths and '..' are limited when looking up relative to a capability. - When a name lookup is performed, identify what operation is to be performed (such as CAP_MKDIR) as well as check for CAP_LOOKUP. With these constraints, openat() and friends are now safe in capability mode, and can then be used by code such as the capability-mode runtime linker. Approved by: re (bz), mentor (rwatson) Sponsored by: Google Inc Notes: svn path=/head/; revision=224810
* Extend the cn_flags field of the struct componentname to 64 bits to haveKonstantin Belousov2009-07-091-2/+2
| | | | | | | | | | | more space for the flags, that is too close to be exhausted. While changing the KBI for name(9), use unsigned int for symlinks count. Suggested by: rwatson Approved by: re (kensmith) Notes: svn path=/head/; revision=195508
* Let vfs_lookup() return ENOTDIR if the path has a trailing slash andDag-Erling Smørgrav2009-05-291-1/+2
| | | | | | | | | | | | | | | | | | | | the last component is a symlink to something that isn't a directory. We introduce a new namei flag, TRAILINGSLASH, which is set by lookup() if the last component is followed by a slash. The trailing slash is then stripped, as before. If the final component is a symlink, lookup() will return to namei(), which will expand the symlink and call lookup() with the new path. When all symlinks have been resolved, lookup() checks if the TRAILINGSLASH flag is set, and if it is, and the vnode it ended up with is not a directory, it returns ENOTDIR. PR: kern/21768 Submitted by: Eygene Ryabinkin <rea-fbsd@codelabs.ru> MFC after: 3 weeks Notes: svn path=/head/; revision=193028
* Expand namei flag definitions to the full eight nybbles.Dag-Erling Smørgrav2009-05-271-20/+20
| | | | | | | MFC after: 3 weeks Notes: svn path=/head/; revision=192900
* Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.Pawel Jakub Dawidek2008-11-171-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This bring huge amount of changes, I'll enumerate only user-visible changes: - Delegated Administration Allows regular users to perform ZFS operations, like file system creation, snapshot creation, etc. - L2ARC Level 2 cache for ZFS - allows to use additional disks for cache. Huge performance improvements mostly for random read of mostly static content. - slog Allow to use additional disks for ZFS Intent Log to speed up operations like fsync(2). - vfs.zfs.super_owner Allows regular users to perform privileged operations on files stored on ZFS file systems owned by him. Very careful with this one. - chflags(2) Not all the flags are supported. This still needs work. - ZFSBoot Support to boot off of ZFS pool. Not finished, AFAIK. Submitted by: dfr - Snapshot properties - New failure modes Before if write requested failed, system paniced. Now one can select from one of three failure modes: - panic - panic on write error - wait - wait for disk to reappear - continue - serve read requests if possible, block write requests - Refquota, refreservation properties Just quota and reservation properties, but don't count space consumed by children file systems, clones and snapshots. - Sparse volumes ZVOLs that don't reserve space in the pool. - External attributes Compatible with extattr(2). - NFSv4-ACLs Not sure about the status, might not be complete yet. Submitted by: trasz - Creation-time properties - Regression tests for zpool(8) command. Obtained from: OpenSolaris Notes: svn path=/head/; revision=185029
* Add the support for the AT_FDCWD and fd-relative name lookups to theKonstantin Belousov2008-03-311-3/+7
| | | | | | | | | | | | namei(9). Based on the submission by rdivacky, sponsored by Google Summer of Code 2007 Reviewed by: rwatson, rdivacky Tested by: pho Notes: svn path=/head/; revision=177785
* Add AUDITVNODE[12] flags to namei(), which cause namei() to audit pathRobert Watson2006-02-051-1/+3
| | | | | | | | | | | | and vnode attribute information for looked up vnodes during the lookup operation. This will allow consumers of namei() to specify that this information be added to the in-process audit record. Submitted by: wsalamon Obtained from: TrustedBSD Project Notes: svn path=/head/; revision=155334
* - Add an ISOPEN flag that filesystems can use to determine if a namei()Jeff Roberson2005-04-271-0/+1
| | | | | | | | | | caller will be interested in the actual data contents of a vnode after a successful lookup. This intended to help deal with lifetime issues for device cloning and to alert autofs when filesystems need to be mounted. Notes: svn path=/head/; revision=145583
* - Remove the namei NOOBJ flag. It is meaningless now.Jeff Roberson2005-04-091-1/+0
| | | | | | | Sponsored by: Isilon Systems, Inc. Notes: svn path=/head/; revision=144834
* - Add a lock flag to the component name so that namei() may request aJeff Roberson2005-03-291-0/+1
| | | | | | | | | shared lock. Filesystems are not required to honor this request. Sponsored by: Isilon Systems, Inc. Notes: svn path=/head/; revision=144285
* - Remove PDIRUNLOCK, it will soon be unused in every filesystems. The onlyJeff Roberson2005-03-281-1/+0
| | | | | | | | | | | | | case where filesystems legitimately need to unlock the directory vp is in the DOTDOT case, which we can explicitly check for in lookup(). Furthermore, allowing filesystems to unlock dvp can lead to lock order reversals in lookup() when we vrele the dvp while the child is still locked. Sponsored by: Isilon Systems, Inc. Notes: svn path=/head/; revision=144202
* - Add two new flags to the nd structure. MPSAFE indicates that theJeff Roberson2005-01-241-16/+20
| | | | | | | | | | | | | caller may not be holding Giant, and namei() should acquire it as necessary. HASGIANT is used to indicate when namei() is returning with a reference to a vnode that requires giant, and giant is locked. - Add the macro NDHASGIANT() which can be used in conjunction with VFS_UNLOCK_GIANT() in callers who have marked the nd with MPSAFE. Sponsored By: Isilon Systems, Inc. Notes: svn path=/head/; revision=140698
* /* -> /*- for license, minor formatting changesWarner Losh2005-01-071-1/+1
| | | | Notes: svn path=/head/; revision=139825
* Remove advertising clause from University of California Regent's license,Warner Losh2004-04-071-4/+0
| | | | | | | | | per letter dated July 22, 1999. Approved by: core Notes: svn path=/head/; revision=127976
* Consistently use the BSD u_int and u_short instead of the SYSV uint andJohn Baldwin2003-08-071-1/+1
| | | | | | | | | | ushort. In most of these files, there was a mixture of both styles and this change just makes them self-consistent. Requested by: bde (kern_ktrace.c) Notes: svn path=/head/; revision=118607
* Remove four members of struct nameidata which have been commentedPoul-Henning Kamp2003-01-131-13/+0
| | | | | | | | | | out since rev 1.1 (24 may 1994) of this file. Add a nail to the K&R coffin by removing the #ifdef'ed K&R function declaration for NDINIT. Notes: svn path=/head/; revision=109171
* Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/Jens Schweikhardt2002-12-301-1/+1
| | | | | | | Add FreeBSD Id tag where missing. Notes: svn path=/head/; revision=108470
* Add a new 'NOMACCHECK' flag to namei() NDINIT flags, which permits theRobert Watson2002-10-191-1/+2
| | | | | | | | | | | | | | | | | | | | | caller to indicate that MAC checks are not required for the lookup. Similar to IO_NOMACCHECK for vn_rdwr(), this indicates that the caller has already performed all required protections and that this is an internally generated operation. This will be used by the NFS server code, as we don't currently enforce MAC protections against requests delivered via NFS. While here, add NOCROSSMOUNT to PARAMASK; apparently this was used at one point for name lookup flag checking, but isn't any longer or it would have triggered from the NFS server code passing it to indicate that mountpoints shouldn't be crossed in lookups. Approved by: re Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories Notes: svn path=/head/; revision=105479
* More s/file system/filesystem/gTom Rhodes2002-05-161-1/+1
| | | | Notes: svn path=/head/; revision=96755
* Remove __PAlfred Perlstein2002-03-191-7/+7
| | | | Notes: svn path=/head/; revision=92719
* This patch adds the "LOCKSHARED" option to namei which causes it to only ↵Jeff Roberson2002-03-121-3/+4
| | | | | | | | | | | | | | | | | | | acquire shared locks on leafs. The stat() and open() calls have been changed to make use of this new functionality. Using shared locks in these cases is sufficient and can significantly reduce their latency if IO is pending to these vnodes. Also, this reduces the number of exclusive locks that are floating around in the system, which helps reduce the number of deadlocks that occur. A new kernel option "LOOKUP_SHARED" has been added. It defaults to off so this patch can be turned on for testing, and should eventually go away once it is proven to be stable. I have personally been running this patch for over a year now, so it is believed to be fully stable. Reviewed by: jake, obrien Approved by: jake Notes: svn path=/head/; revision=92130
* namei.h: move "struct componentname" definition outside "struct nameidata",Luigi Rizzo2001-09-281-16/+26
| | | | | | | | | | | | | | | | | and provide a valid STDC/C++ definition for function NDINIT queue.h libkern.h: put explicit casts from void * in insque, remque and memset (for the records, these changes are necessary to let the files compile with g++, which is used to build a FreeBSD module for "Click" -- see www.pdos.lcs.mit.edu/click/ . Given that they have zero impact on our code, it is worthwhile to have them in. MFC after: 3 days Notes: svn path=/head/; revision=84061
* KSE Milestone 2Julian Elischer2001-09-121-5/+6
| | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=83366
* style(9) the structure definitions.David E. O'Brien2001-09-051-1/+1
| | | | Notes: svn path=/head/; revision=83045
* Add new flag PDIRUNLOCK to the component.cn_flags which should be set byBoris Popov2000-09-171-0/+1
| | | | | | | | | | | | | | | | | | | | | filesystem lookup() routine if it unlocks parent directory. This flag should be carefully tracked by filesystems if they want to work properly with nullfs and other stacked filesystems. VFS takes advantage of this flag to perform symantically correct usage of vrele() instead of vput() if parent directory already unlocked. If filesystem fails to track this flag then previous codepath in VFS left unchanged. Convert UFS code to set PDIRUNLOCK flag if necessary. Other filesystmes will be changed after some period of testing. Reviewed in general by: mckusick, dillon, adrian Obtained from: NetBSD Notes: svn path=/head/; revision=65973
* Change NDFREE() from a macro to a function for the time being; the macroEivind Eklund2000-01-081-36/+1
| | | | | | | | | | version caused intolerable bloat (30k). I'm likely to revisit this with an attempt at a smarter macro. Bloat noticed by: bde Notes: svn path=/head/; revision=55611
* Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"Peter Wemm1999-12-291-2/+2
| | | | | | | | | is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come. Notes: svn path=/head/; revision=55205
* Do NOT unlock dvp if LOCKPARENT && vp == dvp. Does not affect any codeEivind Eklund1999-12-181-1/+2
| | | | | | | presently in the tree. Notes: svn path=/head/; revision=54794
* Make NDFREE unlock VP if appropriate and not asked not to, as documented inEivind Eklund1999-12-181-0/+3
| | | | | | | | the manpage for namei(). This capability is not yet used attempted used anywhere in the source tree. Notes: svn path=/head/; revision=54784
* Introduce NDFREE (and remove VOP_ABORTOP)Eivind Eklund1999-12-151-6/+55
| | | | Notes: svn path=/head/; revision=54655
* Before we start to mess with the VFS name-cache clean things up a little bit:Poul-Henning Kamp1999-10-031-17/+0
| | | | | | | Isolate the namecache in its own file, and give it a dedicated malloc type. Notes: svn path=/head/; revision=51906
* Fix a hole in jail(2).Poul-Henning Kamp1999-09-251-0/+1
| | | | | | | Noticed by: Alexander Bezroutchko <abb@zenon.net> Notes: svn path=/head/; revision=51649
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* This commit fixes various 64bit portability problems required forDoug Rabson1998-06-071-2/+2
| | | | | | | | | | | | | FreeBSD/alpha. The most significant item is to change the command argument to ioctl functions from int to u_long. This change brings us inline with various other BSD versions. Driver writers may like to use (__FreeBSD_version == 300003) to detect this change. The prototype FreeBSD/alpha machdep will follow in a couple of days time. Notes: svn path=/head/; revision=36735
* Moved some #includes from <sys/param.h> nearer to where they are actuallyBruce Evans1998-03-281-1/+2
| | | | | | | used. Notes: svn path=/head/; revision=34924
* Remove two non-global variables.Poul-Henning Kamp1998-01-121-3/+1
| | | | | | | | Found by: bde (one) Overlooked by: bde (one) :-) Notes: svn path=/head/; revision=32485
* Make our v_usecount vnode reference count work identically to theJohn Dyson1998-01-061-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | original BSD code. The association between the vnode and the vm_object no longer includes reference counts. The major difference is that vm_object's are no longer freed gratuitiously from the vnode, and so once an object is created for the vnode, it will last as long as the vnode does. When a vnode object reference count is incremented, then the underlying vnode reference count is incremented also. The two "objects" are now more intimately related, and so the interactions are now much less complex. When vnodes are now normally placed onto the free queue with an object still attached. The rundown of the object happens at vnode rundown time, and happens with exactly the same filesystem semantics of the original VFS code. There is absolutely no need for vnode_pager_uncache and other travesties like that anymore. A side-effect of these changes is that SMP locking should be much simpler, the I/O copyin/copyout optimizations work, NFS should be more ponderable, and further work on layered filesystems should be less frustrating, because of the totally coherent management of the vnode objects and vnodes. Please be careful with your system while running this code, but I would greatly appreciate feedback as soon a reasonably possible. Notes: svn path=/head/; revision=32286
* Fixed formatting of FreeBSD changes.Bruce Evans1997-09-071-4/+4
| | | | Notes: svn path=/head/; revision=29212
* Some staticized variables were still declared to be extern.Bruce Evans1997-09-071-2/+1
| | | | Notes: svn path=/head/; revision=29179
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