mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-29 12:03:03 +00:00
9669bb479a
temporary storage. In the old NFS code it wasn't at all clear if the value of `tl' was used across or after macro calls, but I'm fairly confident that the convention was to keep its use local. Each ex-macro function now uses a local version of this variable, so all of the double-indirection goes away. The only exception to the `local use' rule for `tl' is nfsm_clget(), which is left unchanged by this commit. Reviewed by: peter
204 lines
6.2 KiB
C
204 lines
6.2 KiB
C
/*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 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 _NFSCLIENT_NFSM_SUBS_H_
|
|
#define _NFSCLIENT_NFSM_SUBS_H_
|
|
|
|
#include <nfs/nfs_common.h>
|
|
|
|
#define nfsv2tov_type(a) nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
|
|
|
|
struct ucred;
|
|
struct vnode;
|
|
|
|
/*
|
|
* 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
|
|
*/
|
|
struct mbuf *nfsm_reqhead(struct vnode *vp, u_long procid, int hsiz);
|
|
struct mbuf *nfsm_rpchead(struct ucred *cr, int nmflag, int procid,
|
|
int auth_type, int auth_len,
|
|
struct mbuf *mrest, int mrest_len,
|
|
struct mbuf **mbp, u_int32_t *xidp);
|
|
|
|
#define M_HASCL(m) ((m)->m_flags & M_EXT)
|
|
#define NFSMINOFF(m) \
|
|
do { \
|
|
if (M_HASCL(m)) \
|
|
(m)->m_data = (m)->m_ext.ext_buf; \
|
|
else if ((m)->m_flags & M_PKTHDR) \
|
|
(m)->m_data = (m)->m_pktdat; \
|
|
else \
|
|
(m)->m_data = (m)->m_dat; \
|
|
} while (0)
|
|
#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.
|
|
*/
|
|
|
|
|
|
/* *********************************** */
|
|
/* Request generation phase macros */
|
|
|
|
int nfsm_fhtom_xx(struct vnode *v, int v3, struct mbuf **mb,
|
|
caddr_t *bpos);
|
|
void nfsm_v3attrbuild_xx(struct vattr *va, int full, struct mbuf **mb,
|
|
caddr_t *bpos);
|
|
int nfsm_strtom_xx(const char *a, int s, int m, struct mbuf **mb,
|
|
caddr_t *bpos);
|
|
|
|
#define nfsm_bcheck(t1, mreq) \
|
|
do { \
|
|
if (t1) { \
|
|
error = t1; \
|
|
m_freem(mreq); \
|
|
goto nfsmout; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define nfsm_fhtom(v, v3) \
|
|
do { \
|
|
int32_t t1; \
|
|
t1 = nfsm_fhtom_xx((v), (v3), &mb, &bpos); \
|
|
nfsm_bcheck(t1, mreq); \
|
|
} while (0)
|
|
|
|
/* If full is true, set all fields, otherwise just set mode and time fields */
|
|
#define nfsm_v3attrbuild(a, full) \
|
|
nfsm_v3attrbuild_xx(a, full, &mb, &bpos)
|
|
|
|
#define nfsm_uiotom(p, s) \
|
|
do { \
|
|
int t1; \
|
|
t1 = nfsm_uiotombuf((p), &mb, (s), &bpos); \
|
|
nfsm_bcheck(t1, mreq); \
|
|
} while (0)
|
|
|
|
#define nfsm_strtom(a, s, m) \
|
|
do { \
|
|
int t1; \
|
|
t1 = nfsm_strtom_xx((a), (s), (m), &mb, &bpos); \
|
|
nfsm_bcheck(t1, mreq); \
|
|
} while (0)
|
|
|
|
/* *********************************** */
|
|
/* Send the request */
|
|
|
|
#define nfsm_request(v, t, p, c) \
|
|
do { \
|
|
error = nfs_request((v), mreq, (t), (p), (c), &mrep, &md, &dpos); \
|
|
if (error != 0) { \
|
|
if (error & NFSERR_RETERR) \
|
|
error &= ~NFSERR_RETERR; \
|
|
else \
|
|
goto nfsmout; \
|
|
} \
|
|
} while (0)
|
|
|
|
/* *********************************** */
|
|
/* Reply interpretation phase macros */
|
|
|
|
int nfsm_mtofh_xx(struct vnode *d, struct vnode **v, int v3, int *f,
|
|
struct mbuf **md, caddr_t *dpos);
|
|
int nfsm_getfh_xx(nfsfh_t **f, int *s, int v3, struct mbuf **md,
|
|
caddr_t *dpos);
|
|
int nfsm_loadattr_xx(struct vnode **v, struct vattr *va, struct mbuf **md,
|
|
caddr_t *dpos);
|
|
int nfsm_postop_attr_xx(struct vnode **v, int *f, struct mbuf **md,
|
|
caddr_t *dpos);
|
|
int nfsm_wcc_data_xx(struct vnode **v, int *f, struct mbuf **md,
|
|
caddr_t *dpos);
|
|
|
|
#define nfsm_mtofh(d, v, v3, f) \
|
|
do { \
|
|
int32_t t1; \
|
|
t1 = nfsm_mtofh_xx((d), &(v), (v3), &(f), &md, &dpos); \
|
|
nfsm_dcheck(t1, mrep); \
|
|
} while (0)
|
|
|
|
#define nfsm_getfh(f, s, v3) \
|
|
do { \
|
|
int32_t t1; \
|
|
t1 = nfsm_getfh_xx(&(f), &(s), (v3), &md, &dpos); \
|
|
nfsm_dcheck(t1, mrep); \
|
|
} while (0)
|
|
|
|
#define nfsm_loadattr(v, a) \
|
|
do { \
|
|
int32_t t1; \
|
|
t1 = nfsm_loadattr_xx(&v, a, &md, &dpos); \
|
|
nfsm_dcheck(t1, mrep); \
|
|
} while (0)
|
|
|
|
#define nfsm_postop_attr(v, f) \
|
|
do { \
|
|
int32_t t1; \
|
|
t1 = nfsm_postop_attr_xx(&v, &f, &md, &dpos); \
|
|
nfsm_dcheck(t1, mrep); \
|
|
} while (0)
|
|
|
|
/* Used as (f) for nfsm_wcc_data() */
|
|
#define NFSV3_WCCRATTR 0
|
|
#define NFSV3_WCCCHK 1
|
|
|
|
#define nfsm_wcc_data(v, f) \
|
|
do { \
|
|
int32_t t1; \
|
|
t1 = nfsm_wcc_data_xx(&v, &f, &md, &dpos); \
|
|
nfsm_dcheck(t1, mrep); \
|
|
} while (0)
|
|
|
|
#endif
|