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![J. Bruce Fields](/assets/img/avatar_default.png)
This is a cosmetic change for now; no change in behavior. Note we're just depending on xdr_reserve_space to do the bounds checking for us, we're not really depending on its adjustment of iovec or xdr_buf lengths yet, as those are fixed up by as necessary after the fact by read-link operations and by nfs4svc_encode_compoundres. However we do have to update xdr->iov on read-like operations to prevent xdr_reserve_space from messing with the already-fixed-up length of the the head. When the attribute encoding fails partway through we have to undo the length adjustments made so far. We do it manually for now, but later patches will add an xdr_truncate_encode() helper to handle cases like this. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
/*
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* Mapping of UID to name and vice versa.
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*
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* Copyright (c) 2002, 2003 The Regents of the University of
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* Michigan. All rights reserved.
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> *
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* Marius Aamodt Eriksen <marius@umich.edu>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LINUX_NFSD_IDMAP_H
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#define LINUX_NFSD_IDMAP_H
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#include <linux/in.h>
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#include <linux/sunrpc/svc.h>
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/* XXX from linux/nfs_idmap.h */
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#define IDMAP_NAMESZ 128
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#ifdef CONFIG_NFSD_V4
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int nfsd_idmap_init(struct net *);
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void nfsd_idmap_shutdown(struct net *);
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#else
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static inline int nfsd_idmap_init(struct net *net)
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{
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return 0;
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}
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static inline void nfsd_idmap_shutdown(struct net *net)
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{
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}
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#endif
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__be32 nfsd_map_name_to_uid(struct svc_rqst *, const char *, size_t, kuid_t *);
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__be32 nfsd_map_name_to_gid(struct svc_rqst *, const char *, size_t, kgid_t *);
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__be32 nfsd4_encode_user(struct xdr_stream *, struct svc_rqst *, kuid_t);
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__be32 nfsd4_encode_group(struct xdr_stream *, struct svc_rqst *, kgid_t);
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#endif /* LINUX_NFSD_IDMAP_H */
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