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/*-
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rick Macklem at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
* $FreeBSD$
*/
#ifndef _NFSSERVER_NFSM_SUBS_H_
#define _NFSSERVER_NFSM_SUBS_H_
#include <nfs/nfs_common.h>
#define nfstov_mode(a) (fxdr_unsigned(u_int32_t, (a)) & ALLPERMS)
/*
* These macros do strange and peculiar things to mbuf chains for
* the assistance of the nfs code. To attempt to use them for any
* other purpose will be dangerous. (they make weird assumptions)
*/
/*
* First define what the actual subs. return
*/
#define M_HASCL(m) ((m)->m_flags & M_EXT)
#define NFSMSIZ(m) ((M_HASCL(m))?MCLBYTES: \
(((m)->m_flags & M_PKTHDR)?MHLEN:MLEN))
/*
* Now for the macros that do the simple stuff and call the functions
* for the hard stuff.
* These macros use several vars. declared in nfsm_reqhead and these
* vars. must not be used elsewhere unless you are careful not to corrupt
* them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries
* that may be used so long as the value is not expected to retained
* after a macro.
* I know, this is kind of dorkey, but it makes the actual op functions
* fairly clean and deals with the mess caused by the xdr discriminating
* unions.
*/
/* ************************************* */
/* Dissection phase macros */
int nfsm_srvstrsiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
int nfsm_srvnamesiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
int nfsm_srvnamesiz0_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
int nfsm_srvmtofh_xx(fhandle_t *f, struct nfsrv_descript *nfsd,
struct mbuf **md, caddr_t *dpos);
int nfsm_srvsattr_xx(struct vattr *a, struct mbuf **md, caddr_t *dpos);
#define nfsm_srvstrsiz(s, m) \
do { \
int t1; \
t1 = nfsm_srvstrsiz_xx(&(s), (m), &md, &dpos); \
if (t1) { \
error = t1; \
nfsm_reply(0); \
} \
} while (0)
#define nfsm_srvnamesiz(s) \
do { \
int t1; \
t1 = nfsm_srvnamesiz_xx(&(s), NFS_MAXNAMLEN, &md, &dpos); \
if (t1) { \
error = t1; \
nfsm_reply(0); \
} \
} while (0)
#define nfsm_srvpathsiz(s) \
do { \
int t1; \
t1 = nfsm_srvnamesiz0_xx(&(s), NFS_MAXPATHLEN, &md, &dpos); \
if (t1) { \
error = t1; \
nfsm_reply(0); \
} \
} while (0)
#define nfsm_srvmtofh(f) \
do { \
int t1; \
t1 = nfsm_srvmtofh_xx((f), nfsd, &md, &dpos); \
if (t1) { \
error = t1; \
nfsm_reply(0); \
} \
} while (0)
/* XXX why is this different? */
#define nfsm_srvsattr(a) \
do { \
int t1; \
t1 = nfsm_srvsattr_xx((a), &md, &dpos); \
if (t1) { \
error = t1; \
m_freem(mrep); \
mrep = NULL; \
goto nfsmout; \
} \
} while (0)
/* ************************************* */
/* Prepare the reply */
#define nfsm_reply(s) \
do { \
if (mrep != NULL) { \
m_freem(mrep); \
mrep = NULL; \
} \
mreq = nfs_rephead((s), nfsd, error, &mb, &bpos); \
*mrq = mreq; \
if (error == EBADRPC) { \
error = 0; \
goto nfsmout; \
} \
} while (0)
#define nfsm_writereply(s) \
do { \
mreq = nfs_rephead((s), nfsd, error, &mb, &bpos); \
} while(0)
/* ************************************* */
/* Reply phase macros - add additional reply info */
void nfsm_srvfhtom_xx(fhandle_t *f, int v3, struct mbuf **mb,
caddr_t *bpos);
void nfsm_srvpostop_fh_xx(fhandle_t *f, struct mbuf **mb, caddr_t *bpos);
void nfsm_clget_xx(u_int32_t **tl, struct mbuf *mb, struct mbuf **mp,
char **bp, char **be, caddr_t bpos, int droplock);
#define nfsm_srvfhtom(f, v3) \
nfsm_srvfhtom_xx((f), (v3), &mb, &bpos)
#define nfsm_srvpostop_fh(f) \
nfsm_srvpostop_fh_xx((f), &mb, &bpos)
#define nfsm_srvwcc_data(br, b, ar, a) \
nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos)
#define nfsm_srvpostop_attr(r, a) \
nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos)
#define nfsm_srvfillattr(a, f) \
nfsm_srvfattr(nfsd, (a), (f))
#define nfsm_clget \
nfsm_clget_xx(&tl, mb, &mp, &bp, &be, bpos, 1)
#define nfsm_clget_nolock \
nfsm_clget_xx(&tl, mb, &mp, &bp, &be, bpos, 0)
#endif
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