Commit Graph

32 Commits

Author SHA1 Message Date
wrstuden cca0c4f6de Modify how lookup walks up mount points. As suggested by Konrad
Schroder <perseant@hitl.washington.edu>, unlock the mounted on
vnode before we call VFS_ROOT so that we cover the case where the new
root vnode shares a lock with the mounted-on vnode. Note that we have
asserted vfs_busy on the new fs before unlocking, so no other process can
steal the mount out from under us.
1999-08-03 18:17:24 +00:00
wrstuden 379a26972f Modify file systems to deal with struct lock in struct vnode. All leaf
fs's other than nfs use genfs_lock() for locking.

Modify lookup routines to set PDIRUNLOCK when they unlock the parrent.
1999-07-08 01:05:58 +00:00
thorpej 16936c9565 Break cdir/rdir/cmask info out of struct filedesc, and put it in a new
substructure, `cwdinfo'.  Implement optional sharing of this substructure.

This is required for clone(2).
1999-04-30 18:42:58 +00:00
wrstuden 2e1fa90ecb Fix obscure bug in namei(), which was the cause of PR 7306.
The problem is that if "sl" is a symbolic link, a lookup on "sl/"
will be flagged as the last component. Thus VOP_LOOKUP will lock
the parent directory if LOCKPARENT is set. In order for the symbolic
link to be resolved, this lock needs to be released. namei() would
test for this by checking if ni_pathlen == 1, which it wouldn't as
"/" is left in the name, and namei() would not unlock the parent.
The next call to lookup() to resolve the symbolic link would fail
as the parent was still locked.
1999-04-07 05:47:37 +00:00
perry 275d1554aa Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one.
bcopy(x, y, z) ->  memcpy(y, x, z)
ovbcopy(x, y, z) -> memmove(y, x, z)
   bcmp(x, y, z) ->  memcmp(x, y, z)
  bzero(x, y)    ->  memset(x, 0, y)
1998-08-04 04:03:10 +00:00
thorpej 808867c7cf defopt KTRACE 1998-06-25 21:17:15 +00:00
fvdl e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00
enami 4589c896eb Conditionalize the recognition of symbolic link permission by
per fs mount option `symperm'.
1997-10-30 22:47:06 +00:00
enami 8092be0770 Check exec bit of symbolic link when traversing path and do it in vfs layer.
Suggested by der Mouse.  Ok'ed by Jason R. Thorpe.
1997-10-11 00:08:08 +00:00
mycroft 07ba5e5ac3 Snapshot of namei() cleanup:
1) Eliminate all of the null component name special cases; handle runs of
slashes and leading and trailing slashes completely differently.
2) Return ENOENT when doing a lookup through an empty symlink.
3) Enforce that we're doing a lookup through a directory in in chdir() and
lookup() rather than in foo_lookup().

Not yet finished.
1997-05-08 14:55:22 +00:00
kleink 513465cc2c Added a sanity check to the force-directory routine, as the CREATE and
RENAME namei() operations may succeed without returning a vnode.
1997-04-08 16:11:48 +00:00
kleink 43bd8d5456 POSIX.1 changes to namei():
(1) "" no longer refers to the current working directory;
	    looking this up will now result in ENOENT.

	(2) by stripping off trailing slashes and setting a `forcedir'
	    flag, make code such as {  mkdir("dir", m); rmdir("dir/"); }
	    actually work.
1997-04-08 10:11:55 +00:00
cgd ce53653783 make the namei struct members ni_dirp and ni_next, and the componentname
struct member cn_nameptr 'const', since they should never be used to
modify the path name.  (Only the pathname buffer, cn_pnbuf, should be
modified.)  Propagate the const poisoning to code that uses the namei
and componentname structs.
1996-10-25 23:13:58 +00:00
christos f443b89c92 backout previous kprintf change 1996-10-13 02:32:29 +00:00
christos 60d201973e printf -> kprintf, sprintf -> ksprintf 1996-10-10 22:46:11 +00:00
christos 09afd77655 More proto fixes 1996-02-09 18:59:18 +00:00
christos e630447d8c First pass at prototyping 1996-02-04 02:17:43 +00:00
cgd 4f2d1996e7 needs systm.h 1995-03-08 01:20:50 +00:00
mycroft 70f25af085 Sync with CSRG. 1994-12-14 19:41:23 +00:00
cgd cf92afd66e New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:29:24 +00:00
mycroft 699bbb84b6 Update to 4.4-Lite fs code. 1994-06-08 11:28:29 +00:00
cgd 21a03cca53 mostly-machine-indepedent switch, and changes to match. also, hack init_main 1994-05-18 05:12:10 +00:00
cgd 91cf0fbaf3 copyright foo 1994-05-17 04:21:49 +00:00
cgd a83f6577b0 minor cleanup; extra spaces, patchkit info, etc. 1994-01-05 13:49:52 +00:00
cgd 2c5c3a2774 add support for union and loopback mounts, from jsp 1994-01-04 14:10:48 +00:00
mycroft 7f50bd1829 Canonicalize all #includes. 1993-12-18 04:21:37 +00:00
cgd facd69a0ee do something better with lookup return values; suggested by BSDI's msdosfs mod 1993-11-20 09:40:32 +00:00
ws 053f138dae Changes to VFS readdir semantics
NFS changes for better cookie support
ISOFS changes for better Rockridge support and support for generation numbers
1993-09-07 15:40:14 +00:00
mycroft 4862b84c92 Add RCS identifiers (this time on the correct side of the branch), and
incorporate recent changes in netbsd-0-9 branch.
1993-08-01 19:22:24 +00:00
cgd 230dcf0d05 add $Id$ strings, and clean up file headers where necessary 1993-05-20 02:54:09 +00:00
cgd e541169ce2 after 0.2.2 "stable" patches applied 1993-03-21 18:04:42 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00