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Frank Filz 406a7ea97d nfsd: Allow AIX client to read dir containing mountpoints ... This patch addresses a compatibility issue with a Linux NFS server and AIX NFS client. I have exported /export as fsid=0 with sec=krb5:krb5i I have mount --bind /home onto /export/home I have exported /export/home with sec=krb5i The AIX client mounts / -o sec=krb5:krb5i onto /mnt If I do an ls /mnt, the AIX client gets a permission error. Looking at the network traceIwe see a READDIR looking for attributes FATTR4_RDATTR_ERROR and FATTR4_MOUNTED_ON_FILEID. The response gives a NFS4ERR_WRONGSEC which the AIX client is not expecting. Since the AIX client is only asking for an attribute that is an attribute of the parent file system (pseudo root in my example), it seems reasonable that there should not be an error. In discussing this issue with Bruce Fields, I initially proposed ignoring the error in nfsd4_encode_dirent_fattr() if all that was being asked for was FATTR4_RDATTR_ERROR and FATTR4_MOUNTED_ON_FILEID, however, Bruce suggested that we avoid calling cross_mnt() if only these attributes are requested. The following patch implements bypassing cross_mnt() if only FATTR4_RDATTR_ERROR and FATTR4_MOUNTED_ON_FILEID are called. Since there is some complexity in the code in nfsd4_encode_fattr(), I didn't want to duplicate code (and introduce a maintenance nightmare), so I added a parameter to nfsd4_encode_fattr() that indicates whether it should ignore cross mounts and simply fill in the attribute using the passed in dentry as opposed to it's parent. Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>		17 years ago
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Kbuild	nfsd: move nfsd/auth.h into fs/nfsd	17 years ago
cache.h	nfsd: fail module init on reply cache init failure	17 years ago
const.h	…
debug.h	…
export.h	knfsd: allow cache_register to return error on failure	17 years ago
nfsd.h	nfsd: move nfsd/auth.h into fs/nfsd	17 years ago
nfsfh.h	knfsd: 64 bit ino support for NFS server	18 years ago
state.h	knfsd: nfsd4: don't delegate files that have had conflicts	18 years ago
stats.h	…
syscall.h	nfsd: move nfsd/auth.h into fs/nfsd	17 years ago
xdr.h	NFSD: Path name length signage in nfsd request argument structures	17 years ago
xdr3.h	NFSD: Path name length signage in nfsd request argument structures	17 years ago
xdr4.h	nfsd: Allow AIX client to read dir containing mountpoints	17 years ago