- Remove all NFS related stuff from file system specific code.
- Drop the vfs_checkexp hook and generalize it in the new nfs_check_export
function, thus removing redundancy from all file systems.
- Move all NFS export-related stuff from kern/vfs_subr.c to the new
file sys/nfs/nfs_export.c. The former was becoming large and its code
is always compiled, regardless of the build options. Using the latter,
the code is only compiled in when NFSSERVER is enabled. While doing this,
also make some functions in nfs_subs.c conditional to NFSSERVER.
- Add a new command in nfssvc(2), called NFSSVC_SETEXPORTSLIST, that takes a
path and a set of export entries. At the moment it can only clear the
exports list or append entries, one by one, but it is done in a way that
allows setting the whole set of entries atomically in the future (see the
comment in mountd_set_exports_list or in doc/TODO).
- Change mountd(8) to use the nfssvc(2) system call instead of mount(2) so
that it becomes file system agnostic. In fact, all this whole thing was
done to remove a 'XXX' block from this utility!
- Change the mount*, newfs and fsck* userland utilities to not deal with NFS
exports initialization; done internally by the kernel when initializing
the NFS support for each file system.
- Implement an interface for VFS (called VFS hooks) so that several kernel
subsystems can run arbitrary code upon receipt of specific VFS events.
At the moment, this only provides support for unmount and is used to
destroy NFS exports lists from the file systems being unmounted, though it
has room for extension.
Thanks go to yamt@, chs@, thorpej@, wrstuden@ and others for their comments
and advice in the development of this patch.
filedescriptors passed in this message - the counterpart in
unp_externalize does this as well.
Note that CMSG_SPACE(0) does not make sense, since it does not invoke
the alignment magic - so use CMSG_SPACE(sizeof(int)) and adjust the
calculated total later.
This fixes the postfix conection cache for 64bit platforms. Previously
the number of passed filed descriptors (nfds) would have been
calculeted too high, causing the fdrelease() of uninitialized junk.
by changing the symlink one to set vap's vatype to VLNK. All the other three
already set vatype to the correct type. Note that, however, in the mkdir
case (and now symlink too) this is not strictly necessary.
used in ioctl routines to do the right thing when the FKIOCTL flag is
passed to the IOCTL routine indicating its a in-kernel VOP_IOCTL call and
indirect addresses provided in the arguments are to be seen as kernel
adresses rather than userland adresses.
A simple substitution and prepending of the `flags' passed on to the ioctl
handler is enough to DTRT.
we can implement an universal submatch() function covering all
the standard cases:
if (<configured> != <wildcard> && <configured> != <real>)
then fail
else
ask device match function
explicitely by a plain integer array
the length in now known to all relevant parties, so this avoids
duplication of information, and we can allocate that thing in
drivers without hacks
Added a big FIXME because two group lists containing the same entries,
but ordered differently, still compare as unequal. The same holds if one
group list contains an entry twice while the other does not. ok'ed by
christos.
VOP_GETATTR() fills a struct vattr, where va_fsid and va_fileid (device
and inode..) are typed as long.
Add some casts when using these values and surround them with XXXs about
the potential size mismatch, as long can be 64 bits but dev_t and ino_t
are always 32 bits. This is safe because *for now* we're still using
32 bit inode numbers.
Discussed with blymn@.
