nfs_common.h revision 84057
1/* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95 37 * $FreeBSD: head/sys/nfs/nfs_common.h 84057 2001-09-27 22:40:38Z peter $ 38 */ 39 40 41#ifndef _NFS_NFS_COMMON_H_ 42#define _NFS_NFS_COMMON_H_ 43 44extern enum vtype nv3tov_type[]; 45extern nfstype nfsv3_type[]; 46 47#define vtonfsv2_mode(t, m) \ 48 txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : MAKEIMODE((t), (m))) 49 50#define nfsv3tov_type(a) nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7] 51#define vtonfsv3_type(a) txdr_unsigned(nfsv3_type[((int32_t)(a))]) 52 53#define NFSMADV(m, s) \ 54 do { \ 55 (m)->m_data += (s); \ 56 } while (0) 57 58int nfs_adv(struct mbuf **, caddr_t *, int, int); 59void *nfsm_build_xx(int s, struct mbuf **mb, caddr_t *bpos); 60void *nfsm_dissect_xx(int s, struct mbuf **md, caddr_t *dpos); 61int nfsm_strsiz_xx(int *s, int m, u_int32_t **tl, struct mbuf **mb, 62 caddr_t *bpos); 63int nfsm_adv_xx(int s, u_int32_t **tl, struct mbuf **md, caddr_t *dpos); 64u_quad_t nfs_curusec(void); 65void *nfsm_disct(struct mbuf **, caddr_t *, int, int); 66 67#define nfsm_build(c, s) \ 68 (c)nfsm_build_xx((s), &mb, &bpos) 69 70#define nfsm_dissect(c, s) \ 71({ \ 72 void *ret; \ 73 ret = nfsm_dissect_xx((s), &md, &dpos); \ 74 if (ret == NULL) { \ 75 error = EBADRPC; \ 76 m_freem(mrep); \ 77 mrep = NULL; \ 78 goto nfsmout; \ 79 } \ 80 (c)ret; \ 81}) 82 83#define nfsm_strsiz(s,m) \ 84do { \ 85 int t1; \ 86 t1 = nfsm_strsiz_xx(&(s), (m), &tl, &md, &dpos); \ 87 if (t1) { \ 88 error = t1; \ 89 m_freem(mrep); \ 90 mrep = NULL; \ 91 goto nfsmout; \ 92 } \ 93} while(0) 94 95#define nfsm_mtouio(p,s) \ 96do {\ 97 int32_t t1; \ 98 if ((s) > 0 && (t1 = nfsm_mbuftouio(&md, (p), (s), &dpos)) != 0) { \ 99 error = t1; \ 100 m_freem(mrep); \ 101 mrep = NULL; \ 102 goto nfsmout; \ 103 } \ 104} while (0) 105 106#define nfsm_rndup(a) (((a)+3)&(~0x3)) 107 108#define nfsm_adv(s) \ 109do { \ 110 int t1; \ 111 t1 = nfsm_adv_xx((s), &tl, &md, &dpos); \ 112 if (t1) { \ 113 error = t1; \ 114 m_freem(mrep); \ 115 mrep = NULL; \ 116 goto nfsmout; \ 117 } \ 118} while (0) 119 120#endif 121