4736ccfd9c
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
178 lines
5.2 KiB
C
178 lines
5.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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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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* 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 contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
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* $FreeBSD$
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*/
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#ifndef _NFSSERVER_NFSM_SUBS_H_
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#define _NFSSERVER_NFSM_SUBS_H_
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#include <nfs/nfs_common.h>
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#define nfstov_mode(a) (fxdr_unsigned(u_int32_t, (a)) & ALLPERMS)
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/*
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* These macros do strange and peculiar things to mbuf chains for
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* the assistance of the nfs code. To attempt to use them for any
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* other purpose will be dangerous. (they make weird assumptions)
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*/
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/*
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* Now for the macros that do the simple stuff and call the functions
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* for the hard stuff.
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* These macros use several vars. declared in nfsm_reqhead and these
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* vars. must not be used elsewhere unless you are careful not to corrupt
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* them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries
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* that may be used so long as the value is not expected to retained
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* after a macro.
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* I know, this is kind of dorkey, but it makes the actual op functions
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* fairly clean and deals with the mess caused by the xdr discriminating
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* unions.
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*/
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/* ************************************* */
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/* Dissection phase macros */
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int nfsm_srvstrsiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
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int nfsm_srvnamesiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
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int nfsm_srvnamesiz0_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
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int nfsm_srvmtofh_xx(fhandle_t *f, int v3, struct mbuf **md, caddr_t *dpos);
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int nfsm_srvsattr_xx(struct vattr *a, struct mbuf **md, caddr_t *dpos);
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#define nfsm_srvstrsiz(s, m) \
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do { \
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int t1; \
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t1 = nfsm_srvstrsiz_xx(&(s), (m), &md, &dpos); \
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if (t1) { \
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error = t1; \
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nfsm_reply(0); \
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} \
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} while (0)
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#define nfsm_srvnamesiz(s) \
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do { \
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int t1; \
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t1 = nfsm_srvnamesiz_xx(&(s), NFS_MAXNAMLEN, &md, &dpos); \
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if (t1) { \
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error = t1; \
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nfsm_reply(0); \
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} \
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} while (0)
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#define nfsm_srvpathsiz(s) \
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do { \
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int t1; \
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t1 = nfsm_srvnamesiz0_xx(&(s), NFS_MAXPATHLEN, &md, &dpos); \
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if (t1) { \
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error = t1; \
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nfsm_reply(0); \
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} \
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} while (0)
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#define nfsm_srvmtofh(f) \
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do { \
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int t1; \
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t1 = nfsm_srvmtofh_xx((f), nfsd->nd_flag & ND_NFSV3, &md, &dpos); \
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if (t1) { \
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error = t1; \
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nfsm_reply(0); \
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} \
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} while (0)
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/* XXX why is this different? */
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#define nfsm_srvsattr(a) \
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do { \
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int t1; \
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t1 = nfsm_srvsattr_xx((a), &md, &dpos); \
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if (t1) { \
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error = t1; \
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m_freem(mrep); \
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mrep = NULL; \
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goto nfsmout; \
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} \
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} while (0)
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/* ************************************* */
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/* Prepare the reply */
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#define nfsm_reply(s) \
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do { \
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if (mrep != NULL) { \
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m_freem(mrep); \
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mrep = NULL; \
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} \
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mreq = nfs_rephead((s), nfsd, error, &mb, &bpos); \
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*mrq = mreq; \
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if (error == EBADRPC) { \
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error = 0; \
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goto nfsmout; \
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} \
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} while (0)
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#define nfsm_writereply(s) \
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do { \
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mreq = nfs_rephead((s), nfsd, error, &mb, &bpos); \
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} while(0)
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/* ************************************* */
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/* Reply phase macros - add additional reply info */
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void nfsm_srvfhtom_xx(fhandle_t *f, int v3, struct mbuf **mb,
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caddr_t *bpos);
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void nfsm_srvpostop_fh_xx(fhandle_t *f, struct mbuf **mb, caddr_t *bpos);
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void nfsm_clget_xx(u_int32_t **tl, struct mbuf *mb, struct mbuf **mp,
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char **bp, char **be, caddr_t bpos);
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#define nfsm_srvfhtom(f, v3) \
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nfsm_srvfhtom_xx((f), (v3), &mb, &bpos)
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#define nfsm_srvpostop_fh(f) \
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nfsm_srvpostop_fh_xx((f), &mb, &bpos)
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#define nfsm_srvwcc_data(br, b, ar, a) \
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nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos)
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#define nfsm_srvpostop_attr(r, a) \
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nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos)
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#define nfsm_srvfillattr(a, f) \
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nfsm_srvfattr(nfsd, (a), (f))
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#define nfsm_clget \
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nfsm_clget_xx(&tl, mb, &mp, &bp, &be, bpos)
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#endif
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