Kinglong Mee c3821b3497 nfsd/idmap: return nfserr_inval for 0-length names ...

Tigran Mkrtchyan's new pynfs testcases for zero length principals fail:

SATT16   st_setattr.testEmptyPrincipal                            : FAILURE
           Setting empty owner should return NFS4ERR_INVAL,
           instead got NFS4ERR_BADOWNER
SATT17   st_setattr.testEmptyGroupPrincipal                       : FAILURE
           Setting empty owner_group should return NFS4ERR_INVAL,
           instead got NFS4ERR_BADOWNER

This patch checks the principal and returns nfserr_inval directly.  It
could check after decoding in nfs4xdr.c, but it's simpler to do it in
nfsd_map_xxxx.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

2017-02-17 16:25:59 -05:00

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