summaryrefslogtreecommitdiffstats
path: root/sys/fs/devfs
Commit message (Collapse)AuthorAgeFilesLines
* Remove any VOP_PRINT that redundantly prints the tag.njl2002-09-181-15/+2
| | | | | | Move lockmgr_printinfo() into vprint() for everyone's benefit. Suggested by: bde
* Remove all use of vnode->v_tag, replacing with appropriate substitutes.njl2002-09-141-2/+2
| | | | | | | | | | | | v_tag is now const char * and should only be used for debugging. Additionally: 1. All users of VT_NTS now check vfsconf->vf_type VFCF_NETWORK 2. The user of VT_PROCFS now checks for the new flag VV_PROCDEP, which is propagated by pseudofs to all child vnodes if the fs sets PFS_PROCDEP. Suggested by: phk Reviewed by: bde, rwatson (earlier version)
* Introduce typedefs for the member functions of struct vfsops and employphk2002-08-131-9/+6
| | | | | | | these in the main filesystems. This does not change the resulting code but makes the source a little bit more grepable. Sponsored by: DARPA and NAI Labs.
* - Replace v_flag with v_iflag and v_vflagjeff2002-08-042-2/+2
| | | | | | | | | | | | | | | - v_vflag is protected by the vnode lock and is used when synchronization with VOP calls is needed. - v_iflag is protected by interlock and is used for dealing with vnode management issues. These flags include X/O LOCK, FREE, DOOMED, etc. - All accesses to v_iflag and v_vflag have either been locked or marked with mp_fixme's. - Many ASSERT_VOP_LOCKED calls have been added where the locking was not clear. - Many functions in vfs_subr.c were restructured to provide for stronger locking. Idea stolen from: BSD/OS
* Introduce support for Mandatory Access Control and extensiblerwatson2002-08-021-0/+11
| | | | | | | | | | | kernel access control. Teach devfs how to respond to pathconf() _POSIX_MAC_PRESENT queries, allowing it to indicate to user processes that individual vnode labels are available. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
* Hook up devfs_pathconf() for specfs devfs nodes, not just regularrwatson2002-08-011-0/+1
| | | | | | | devfs nodes. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
* Introduce support for Mandatory Access Control and extensiblerwatson2002-07-313-0/+90
| | | | | | | | | | | | | | | | kernel access control. Instrument devfs to support per-dirent MAC labels. In particular, invoke MAC framework when devfs directory entries are instantiated due to make_dev() and related calls, and invoke the MAC framework when vnodes are instantiated from these directory entries. Implement vop_setlabel() for devfs, which pushes the label update into the devfs directory entry for semi-persistant store. This permits the MAC framework to assign labels to devices and directories as they are instantiated, and export access control information via devfs vnodes. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
* Introduce support for Mandatory Access Control and extensiblerwatson2002-07-301-0/+1
| | | | | | | | | | | kernel access control. Label devfs directory entries, permitting labels to be maintained on device nodes in devfs instances persistently despite vnode recycling. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
* Correct misindentation of DRA_UID.dd2002-07-281-1/+1
|
* Unimplement panic(8) by making sure that we don't recurse into add2002-07-281-5/+11
| | | | | | | ruleset. If we do, that means there's a ruleset loop (10 includes 20 include 30 includes 10), which will quickly cause a double fault due to stack overflow (since "include" is implemented by recursion). (Previously, we only checked that X didn't include X.)
* Introduce the DEVFS "rule" subsystem. DEVFS rules permit thedd2002-07-175-1/+949
| | | | | | | | | | | administrator to define certain properties of new devfs nodes before they become visible to the userland. Both static (e.g., /dev/speaker) and dynamic (e.g., /dev/bpf*, some removable devices) nodes are supported. Each DEVFS mount may have a different ruleset assigned to it, permitting different policies to be implemented for things like jails. Approved by: phk
* Make devfs to give honour to PDIRUNLOCK flag.semenu2002-06-011-9/+13
| | | | | Reviewed by: jeff MFC after: 1 week
* Fix several bugs in devfs_lookupx(). When we check the nameiop tomux2002-05-101-3/+3
| | | | | | | | | make sure it's a correct operation for devfs, do it only in the ISLASTCN case. If we don't, we are assuming that the final file will be in devfs, which is not true if another partition is mounted on top of devfs or with special filenames (like /dev/net/../../foo). Reviewed by: phk
* Convert devfs to nmount.mux2002-05-021-6/+5
| | | | Reviewed by: phk
* Use vnode locking with devfs; permit VFS locking assertions to makerwatson2002-04-291-0/+6
| | | | | | | | sense for devfs vnodes, and reduce/remove potential races in the devfs code. Submitted by: iadowse Approved by: phk
* Don't attempt to decvlare M_DEVFS whern MALLOC_DECLARE is not defined.bde2002-04-211-3/+6
| | | | | | | | This fixes warnings that should be errors in fstat. Reminded by: alpha tinderbox Fixed some style bugs (ones near BOF and EOF; there are many more).
* Fixed assorted bugs in setting of timestamps in devfs_setattr().bde2002-04-051-21/+24
| | | | | | | | | | | | Setting of timestamps on devices had no effect visible to userland because timestamps for devices were set in places that are never used. This broke: - update of file change time after a change of an attribute - setting of file access and modification times. The VA_UTIMES_NULL case did not work. Revs 1.31-1.32 were supposed to fix this by copying correct bits from ufs, but had little or no effect because the old checks were not removed.
* Change the suser() API to take advantage of td_ucred as well as do ajhb2002-04-011-6/+5
| | | | | | | | | | | | general cleanup of the API. The entire API now consists of two functions similar to the pre-KSE API. The suser() function takes a thread pointer as its only argument. The td_ucred member of this thread must be valid so the only valid thread pointers are curthread and a few kernel threads such as thread0. The suser_cred() function takes a pointer to a struct ucred as its first argument and an integer flag as its second argument. The flag is currently only used for the PRISON_ROOT flag. Discussed on: smp@
* Remove __P.alfred2002-03-192-21/+21
|
* Be consistent with UFS in a way how devfs_setattr() checks credentialsmaxim2002-03-141-4/+5
| | | | | | | | for chmod(2), chown(2) and utimes(2) with respect to jail(2). Reviewed by: rwatson, ru Not objected by: phk Approved by: ru
* Add a new sysinit SI_SUB_DEVFS. Devfs hooks into the kernel at SI_ORDER_FIRST,msmith2002-01-091-1/+1
| | | | | | and devices can be created anytime after that. Print a warning if an atttempt is made to create a device too early.
* Use a sysinit to initialise the devfs hooks in kern_conf.c rather than commonmsmith2002-01-091-3/+10
| | | | | | variables. Reviewed by: phk (in principle)
* Address two minor issues: implement the _PC_NAME_MAX and _PC_PATH_MAXdd2001-11-251-2/+29
| | | | | | | | | pathconf() variables for directories, and set st_size and st_blocks (of struct stat) for directories as appropriate. Note that st_size is always set to DEV_BSIZE, since the size of the directories is not currently kept. Reviewed by: phk, bde
* Fix "echo > /dev/null" for non-root users which broke in previous commit.phk2001-11-041-5/+7
|
* Use vfs_timestamp() instead of getnanotime().phk2001-11-031-3/+12
| | | | | | Add magic stuff copied from ufs_setattr(). Instructed by: bde
* Use vfs_timestamp() instead of getnanotime() directly.phk2001-11-031-3/+3
| | | | | | Fix some modes on directories and symlinks. Instructed by: bde
* Backed out vestiges of the quick fixes for the transient breakage ofbde2001-10-132-2/+0
| | | | | <sys/mount.h> in rev.1.106 of the latter (don't include <sys/socket.h> just to work around bugs in <sys/mount.h>).
* The behaviour of whiteout'ing symlinks were too confusing, insteadphk2001-09-301-1/+8
| | | | remove them when asked to.
* KSE Milestone 2julian2001-09-124-55/+55
| | | | | | | | | | | | | | 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
* linux ls fails on DEVFS /dev because linux_getdents fails becausephk2001-08-141-4/+22
| | | | | | | | | | linux_getdents uses VOP_READDIR( ..., &ncookies, &cookies ) instead of VOP_READDIR( ..., NULL, NULL ) because it seems to need the offsets for linux_dirent and sizeof(dirent) != sizeof(linux_dirent)... PR: 29467 Submitted by: Michael Reifenberger <root@nihil.plaut.de> Reviewed by: phk
* Support /dev/tun cloning. Ansify if_tun.c while I'm there.brian2001-06-011-1/+2
| | | | | | | | | | | | | | Only tun0 -> tun32767 may now be opened as struct ifnet's if_unit is a short. It's now possible to open /dev/tun and get a handle back for an available tun device (use devname to find out what you got). The implementation uses rman by popular demand (and against my judgement) to track opened devices and uses the new dev_depends() to ensure that all make_dev()d devices go away before the module is unloaded. Reviewed by: phk
* Don't copy the trailing zero in readlink, it confuses namei().phk2001-05-261-1/+1
| | | | PR: 27656
* Create a general facility for making dev_t's depend on anotherphk2001-05-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | dev_t. The dev_depends(dev_t, dev_t) function is for tying them to each other. When destroy_dev() is called on a dev_t, all dev_t's depending on it will also be destroyed (depth first order). Rewrite the make_dev_alias() to use this dependency facility. kern/subr_disk.c: Make the disk mini-layer use dependencies to make sure all relevant dev_t's are removed when the disk disappears. Make the disk mini-layer precreate some magic sub devices which the disk/slice/label code expects to be there. kern/subr_disklabel.c: Remove some now unneeded variables. kern/subr_diskmbr.c: Remove some ancient, commented out code. kern/subr_diskslice.c: Minor cleanup. Use name from dev_t instead of dsname()
* Change the way deletes are managed in DEVFS.phk2001-05-232-42/+114
| | | | | | | This fixes a number of warnings relating to removed cloned devices. It also makes it possible to recreate deleted devices with mknod(2). The major/minor arguments are ignored.
* Change the second argument of vflush() to an integer that specifiesiedowse2001-05-161-12/+2
| | | | | | | | | | | | | | | | | | | | the number of references on the filesystem root vnode to be both expected and released. Many filesystems hold an extra reference on the filesystem root vnode, which must be accounted for when determining if the filesystem is busy and then released if it isn't busy. The old `skipvp' approach required individual filesystem xxx_unmount functions to re-implement much of vflush()'s logic to deal with the root vnode. All 9 filesystems that hold an extra reference on the root vnode got the logic wrong in the case of forced unmounts, so `umount -f' would always fail if there were any extra root vnode references. Fix this issue centrally in vflush(), now that we can. This commit also fixes a vnode reference leak in devfs, which could result in idle devfs filesystems that refuse to unmount. Reviewed by: phk, bp
* After a successfull poll of the cloning functions, match on thephk2001-05-141-14/+6
| | | | | | | returned dev_t rather than the original name. This allows cloning from one name to another which is useful for /dev/tty and later for the pty's.
* Convert DEVFS from an "opt-in" to an "opt-out" option.phk2001-05-133-5/+8
| | | | | | | | | If for some reason DEVFS is undesired, the "NODEVFS" option is needed now. Pending any significant issues, DEVFS will be made mandatory in -current on july 1st so that we can start reaping the full benefits of having it.
* Remove unneeded devfs_badop()phk2001-05-061-10/+0
| | | | Noticed by: rwatson
* Undo part of the tangle of having sys/lock.h and sys/mutex.h included inmarkm2001-05-013-14/+17
| | | | | | | | | | | 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)
* Add a vop_stdbmap(), and make it part of the default vop vector.phk2001-04-291-23/+0
| | | | | | Make 7 filesystems which don't really know about VOP_BMAP rely on the default vector, rather than more or less complete local vop_nopbmap() implementations.
* add this ridiculous include foo so it will compile againmjacob2001-04-232-0/+4
|
* Reviewed by: jlemonadrian2001-03-011-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Remove a debug printf.phk2001-02-181-3/+1
|
* At the point in time where most devices are created, we don't know whatphk2001-02-022-1/+16
| | | | | time it is because boottime is not yet initialized. Finagle the relevant fields when we get the chance.
* Only superuser can create symlinks.phk2001-02-021-2/+5
| | | | | Give symlinks mode 755 by default to avoid triggering alert eyes. (the mode isn't use on symlinks)
* Fix two minor nits.phk2001-01-302-2/+6
| | | | Existences revealed, but no details offered by: bp
* Convert more malloc+bzero to malloc+M_ZERO.dwmalone2000-12-082-10/+5
| | | | | Submitted by: josh@zipperup.org Submitted by: Robert Drehmel <robd@gmx.net>
* staticize.phk2000-12-083-6/+7
|
* Move suser() and suser_xxx() prototypes and a related #define fromphk2000-10-291-1/+0
| | | | | | | | | <sys/proc.h> to <sys/systm.h>. Correctly document the #includes needed in the manpage. Add one now needed #include of <sys/systm.h>. Remove the consequent 48 unused #includes of <sys/proc.h>.
* Remove unneeded #include <sys/proc.h> lines.phk2000-10-292-2/+0
|
OpenPOWER on IntegriCloud