forked from luck/tmp_suning_uos_patched
7fc90ec93a
In the typical v2/v3 case the only new filehandles used as arguments to operations are filehandles taken directly off the wire, which don't get dentries until fh_verify() is called. But in v4 the filehandles that are arguments to operations were often created by previous operations (putrootfh, lookup, etc.) using fh_compose, which sets the dentry in the filehandle without calling nfsd_setuser(). This also means that, for example, if filesystem B is mounted on filesystem A, and filesystem A is exported without root-squashing, then a client can bypass the rootsquashing on B using a compound that starts at a filehandle in A, crosses into B using lookups, and then does stuff in B. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
||
---|---|---|
.. | ||
auth.c | ||
export.c | ||
lockd.c | ||
Makefile | ||
nfs2acl.c | ||
nfs3acl.c | ||
nfs3proc.c | ||
nfs3xdr.c | ||
nfs4acl.c | ||
nfs4callback.c | ||
nfs4idmap.c | ||
nfs4proc.c | ||
nfs4recover.c | ||
nfs4state.c | ||
nfs4xdr.c | ||
nfscache.c | ||
nfsctl.c | ||
nfsfh.c | ||
nfsproc.c | ||
nfssvc.c | ||
nfsxdr.c | ||
stats.c | ||
vfs.c |