Commit Graph

25 Commits

Author SHA1 Message Date
pooka
c3183f3251 The VATTR_NULL/VREF/VHOLD/HOLDRELE() macros lost their will to live
years ago when the kernel was modified to not alter ABI based on
DIAGNOSTIC, and now just call the respective function interfaces
(in lowercase).  Plenty of mix'n match upper/lowercase has creeped
into the tree since then.  Nuke the macros and convert all callsites
to lowercase.

no functional change
2010-01-08 11:35:07 +00:00
pooka
d630c255de vrele, not vput for unlocked devvp 2009-12-03 14:29:04 +00:00
pooka
8b53d2f9df Fix another fine example of "if you make the kernel panic, it's
more secure".
2009-11-27 16:11:35 +00:00
dholland
effcf1af5c Convert 67 namei call sites to use namei_simple, in these functions:
check_console, veriexecclose, veriexec_delete, veriexec_file_add,
emul_find_root, coff_load_shlib (sh3 version), coff_load_shlib,
compat_20_sys_statfs, compat_20_netbsd32_statfs,
ELFNAME2(netbsd32,probe_noteless), darwin_sys_statfs,
ibcs2_sys_statfs, ibcs2_sys_statvfs, linux_sys_uselib,
osf1_sys_statfs, sunos_sys_statfs, sunos32_sys_statfs,
ultrix_sys_statfs, do_sys_mount, fss_create_files (3 of 4),
adosfs_mount, cd9660_mount, coda_ioctl, coda_mount, ext2fs_mount,
ffs_mount, filecore_mount, hfs_mount, lfs_mount, msdosfs_mount,
ntfs_mount, sysvbfs_mount, udf_mount, union_mount, sys_chflags,
sys_lchflags, sys_chmod, sys_lchmod, sys_chown, sys_lchown,
sys___posix_chown, sys___posix_lchown, sys_link, do_sys_pstatvfs,
sys_quotactl, sys_revoke, sys_truncate, do_sys_utimes, sys_extattrctl,
sys_extattr_set_file, sys_extattr_set_link, sys_extattr_get_file,
sys_extattr_get_link, sys_extattr_delete_file,
sys_extattr_delete_link, sys_extattr_list_file, sys_extattr_list_link,
sys_setxattr, sys_lsetxattr, sys_getxattr, sys_lgetxattr,
sys_listxattr, sys_llistxattr, sys_removexattr, sys_lremovexattr

All have been scrutinized (several times, in fact) and compile-tested,
but not all have been explicitly tested in action.

XXX: While I haven't (intentionally) changed the use or nonuse of
XXX: TRYEMULROOT in any of these places, I'm not convinced all the
XXX: uses are correct; an audit might be desirable.
2009-06-29 05:08:15 +00:00
elad
9670d2e41d Add genfs_can_mount() and use it to prevent some more code duplication of
the security checks when mounting a device (VOP_ACCESS() + kauth(9) call)).

Proposed with no objections on tech-kern@:

	http://mail-index.netbsd.org/tech-kern/2009/04/20/msg004859.html

The vnode is always expected to be locked, so no locking is done outside
the file-system code.
2009-04-25 18:53:43 +00:00
cegger
9b87d582bd kill MALLOC and FREE macros. 2008-12-17 20:51:31 +00:00
gmcgarry
36a81a3bed Don't use unnamed structures. 2008-09-03 22:57:46 +00:00
rumble
a1221b6d4a Convert file systems to dynamically attach with the new module interface.
Make VFS hooks dynamic while we're here and say farewell to VFS_ATTACH and
VFS_HOOKS_ATTACH linksets.

As a consequence, most of the file systems can now be loaded as new style
modules.

Quick sanity check by ad@.
2008-05-10 02:26:09 +00:00
ad
baa3395f8f PR kern/38057 ffs makes assuptions about devvp file system
PR kern/33406 softdeps get stuck in endless loop

Introduce VFS_FSYNC() and call it when syncing a block device, if it
has a mounted file system.
2008-04-29 18:18:08 +00:00
dholland
717e1785a5 Fix some race conditions in rename.
Introduce a per-FS rename lock and new vfsops to manipulate it.
Get this lock while renaming. Also add another relookup() in do_sys_rename,
which is a hack to kludge around some of the worst deficiencies of
ufs_rename.
reviewed-by: pooka (and an earlier rev by ad)
posted on tech-kern with no objections.
2008-01-28 14:31:15 +00:00
ad
e49174fa0c - Fix probelms with inode hash: make MPSAFE, don't allocate with held locks.
- Replace use of lockmgr().
2008-01-25 20:49:15 +00:00
ad
703069c0e9 specfs changes for PR kern/37717 (raidclose() is no longer called on
shutdown). There are still problems with device access and a PR will be
filed.

- Kill checkalias(). Allow multiple vnodes to reference a single device.

- Don't play dangerous tricks with block vnodes to ensure that only one
  vnode can describe a block device. Instead, prohibit concurrent opens of
  block devices. As a bonus remove the unreliable code that prevents
  multiple file system mounts on the same device. It's no longer needed.

- Track opens by vnode and by device. Issue cdev_close() when the last open
  goes away, instead of abusing vnode::v_usecount to tell if the device is
  open.
2008-01-24 17:32:52 +00:00
pooka
db06a930e6 Remove cn_lwp from struct componentname. curlwp should be used
from on.  The NDINIT() macro no longer takes the lwp parameter and
associates the credentials of the calling thread with the namei
structure.
2007-12-08 19:29:36 +00:00
pooka
61e8303e9d Remove the "struct lwp *" argument from all VFS and VOP interfaces.
The general trend is to remove it from all kernel interfaces and
this is a start.  In case the calling lwp is desired, curlwp should
be used.

quick consensus on tech-kern
2007-11-26 19:01:26 +00:00
pooka
6cccb0c686 * Use vfs_stdextattrctl instead of a homegrown version. Also fixes
a bug: the homegrown version neglected to unlock vp
* don't reimplement eopnotsupp()
* init genfs_node earlier vget, protects against error paths in vget
  from attempting to destroy a non-inited node
2007-11-25 16:26:42 +00:00
ad
7dad9f7391 Merge from vmlocking:
- Split vnode::v_flag into three fields, depending on field locking.
- simple_lock -> kmutex in a few places.
- Fix some simple locking problems.
2007-10-10 20:42:20 +00:00
pooka
8d1f899239 * nuke the nameidata parameter from VFS_MOUNT(). Nobody on tech-kern
knew what it was supposed to be used for and wrstuden gave a go-ahead
* while rototilling, convert file systems which went easily to
  use VFS_PROTOS() instead of manually prototyping the methods
2007-07-31 21:14:15 +00:00
pooka
d9970c8066 Use eopnotsupp() instead of vfs_stdsuspendctl() and retire the latter. 2007-07-26 22:57:36 +00:00
pooka
e24b0872a4 Make set_statvfs_info() take a parameter for the vfs name instead
of always retrieving it from mp->mnt_op->vfs_name

christos ok
2007-07-17 11:19:31 +00:00
dsl
2721ab6c7b Change the VFS_MOUNT() interface so that the 'data' buffer passed to the
fs code is a kernel buffer, pass though the length of the buffer as well.
Since the length of the userspace buffer isn'it (yet) passed through the mount
system call, add a field to the vfsops structure containing the default length.
Split sys_mount() for calls from compat code.
Ride one of the recent kernel version changes - old fs LKMs will load, but
sys_mount() will reject any attempt to use them.
2007-07-12 19:35:32 +00:00
pooka
835b0326c5 Using POOL_INIT here makes no sense, since file systems always have
an init method.  So get rid of it and #ifdef _LKM and just always
init in the init method.  Give malloc types the same treatment.
Makes file systems nicer to work with in linksetless environments
and fixes a few LKM discrepancies.
2007-06-30 09:37:53 +00:00
dillo
41627b2c38 Add support for HFS Wrapper (HFS+ volume inside an HFS volume).
Remove offset argument, we should now find an HFS+ volume in any
of its standard places.

Based on work from and test image provided by Pelle Johansson.
2007-03-22 13:21:28 +00:00
dillo
0fb2977031 args.path is in UIO_USERSPACE too.
Fixes statvfs on macppc and PR kern/36012.
Thanks to Magnus Henoch for testing.
2007-03-19 09:16:22 +00:00
dillo
56c3e41252 Complete rename of hfsp to hfs, requested by thorpej. 2007-03-06 11:28:44 +00:00
dillo
25e99827c3 Rename files from hfsp to hfs. 2007-03-06 00:22:04 +00:00