diff options
Diffstat (limited to 'freebsd/sys/nfs/nfs_common.h')
| -rw-r--r-- | freebsd/sys/nfs/nfs_common.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/freebsd/sys/nfs/nfs_common.h b/freebsd/sys/nfs/nfs_common.h new file mode 100644 index 00000000..a821934d --- /dev/null +++ b/freebsd/sys/nfs/nfs_common.h @@ -0,0 +1,137 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * 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. 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); +void *nfsm_disct(struct mbuf **, caddr_t *, int, int, int); +int nfs_realign(struct mbuf **, 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); +void *nfsm_dissect_xx_nonblock(int s, struct mbuf **md, caddr_t *dpos); +int nfsm_strsiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos); +int nfsm_adv_xx(int s, 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_dissect_nonblock(c, s) \ +({ \ + void *ret; \ + ret = nfsm_dissect_xx_nonblock((s), &md, &dpos); \ + nfsm_dcheckp(ret, mrep); \ + (c)ret; \ +}) + +#define nfsm_strsiz(s,m) \ +do { \ + int t1; \ + t1 = nfsm_strsiz_xx(&(s), (m), &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), &md, &dpos); \ + nfsm_dcheck(t1, mrep); \ +} while (0) + +#ifdef __NO_STRICT_ALIGNMENT +#define nfsm_aligned(p, t) 1 +#else +#define nfsm_aligned(p, t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0) +#endif + +#endif |