b9b0e19206
next to equivalent m_len adjustments. Move the nfsm_subs.h macros into groups depending on which phase they are used in, since that affects the error recovery requirements. Collect some of the common error checking into a single macro as preparation for unwinding some more. Have nfs_rephead return a value instead of secretly modifying args. Remove some unused function arguments that were being passed around. Clarify nfsm_reply()'s error handling (I hope).
127 lines
3.8 KiB
C
127 lines
3.8 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 _NFS_NFS_COMMON_H_
|
|
#define _NFS_NFS_COMMON_H_
|
|
|
|
extern enum vtype nv3tov_type[];
|
|
extern nfstype nfsv3_type[];
|
|
|
|
#define vtonfsv2_mode(t, m) \
|
|
txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : MAKEIMODE((t), (m)))
|
|
|
|
#define nfsv3tov_type(a) nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
|
|
#define vtonfsv3_type(a) txdr_unsigned(nfsv3_type[((int32_t)(a))])
|
|
|
|
int nfs_adv(struct mbuf **, caddr_t *, int, int);
|
|
u_quad_t nfs_curusec(void);
|
|
void *nfsm_disct(struct mbuf **, caddr_t *, int, int);
|
|
|
|
/* ****************************** */
|
|
/* Build request/reply phase macros */
|
|
|
|
void *nfsm_build_xx(int s, struct mbuf **mb, caddr_t *bpos);
|
|
|
|
#define nfsm_build(c, s) \
|
|
(c)nfsm_build_xx((s), &mb, &bpos)
|
|
|
|
/* ****************************** */
|
|
/* Interpretation phase macros */
|
|
|
|
void *nfsm_dissect_xx(int s, struct mbuf **md, caddr_t *dpos);
|
|
int nfsm_strsiz_xx(int *s, int m, u_int32_t **tl, struct mbuf **md,
|
|
caddr_t *dpos);
|
|
int nfsm_adv_xx(int s, u_int32_t **tl, struct mbuf **md, caddr_t *dpos);
|
|
|
|
/* Error check helpers */
|
|
#define nfsm_dcheck(t1, mrep) \
|
|
do { \
|
|
if (t1 != 0) { \
|
|
error = t1; \
|
|
m_freem((mrep)); \
|
|
(mrep) = NULL; \
|
|
goto nfsmout; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define nfsm_dcheckp(retp, mrep) \
|
|
do { \
|
|
if (retp == NULL) { \
|
|
error = EBADRPC; \
|
|
m_freem((mrep)); \
|
|
(mrep) = NULL; \
|
|
goto nfsmout; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define nfsm_dissect(c, s) \
|
|
({ \
|
|
void *ret; \
|
|
ret = nfsm_dissect_xx((s), &md, &dpos); \
|
|
nfsm_dcheckp(ret, mrep); \
|
|
(c)ret; \
|
|
})
|
|
|
|
#define nfsm_strsiz(s,m) \
|
|
do { \
|
|
int t1; \
|
|
t1 = nfsm_strsiz_xx(&(s), (m), &tl, &md, &dpos); \
|
|
nfsm_dcheck(t1, mrep); \
|
|
} while(0)
|
|
|
|
#define nfsm_mtouio(p,s) \
|
|
do {\
|
|
int32_t t1 = 0; \
|
|
if ((s) > 0) \
|
|
t1 = nfsm_mbuftouio(&md, (p), (s), &dpos); \
|
|
nfsm_dcheck(t1, mrep); \
|
|
} while (0)
|
|
|
|
#define nfsm_rndup(a) (((a)+3)&(~0x3))
|
|
|
|
#define nfsm_adv(s) \
|
|
do { \
|
|
int t1; \
|
|
t1 = nfsm_adv_xx((s), &tl, &md, &dpos); \
|
|
nfsm_dcheck(t1, mrep); \
|
|
} while (0)
|
|
|
|
#endif
|