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 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95 33 * $FreeBSD$ 34 */ 35 36 #ifndef _NFSCLIENT_NFSM_SUBS_H_ 37 #define _NFSCLIENT_NFSM_SUBS_H_ 38 39 #include <nfs/nfs_common.h> 40 41 #define nfsv2tov_type(a) nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7] 42 43 struct ucred; 44 struct vnode; 45 46 /* 47 * These macros do strange and peculiar things to mbuf chains for 48 * the assistance of the nfs code. To attempt to use them for any 49 * other purpose will be dangerous. (they make weird assumptions) 50 */ 51 52 /* 53 * First define what the actual subs. return 54 */ 55 u_int32_t nfs_xid_gen(void); 56 57 /* *********************************** */ 58 /* Request generation phase macros */ 59 60 int nfsm_fhtom_xx(struct vnode *v, int v3, struct mbuf **mb, 61 caddr_t *bpos); 62 void nfsm_v3attrbuild_xx(struct vattr *va, int full, struct mbuf **mb, 63 caddr_t *bpos); 64 int nfsm_strtom_xx(const char *a, int s, int m, struct mbuf **mb, 65 caddr_t *bpos); 66 67 #define nfsm_bcheck(t1, mreq) \ 68 do { \ 69 if (t1) { \ 70 error = t1; \ 71 m_freem(mreq); \ 72 goto nfsmout; \ 73 } \ 74 } while (0) 75 76 #define nfsm_fhtom(v, v3) \ 77 do { \ 78 int32_t t1; \ 79 t1 = nfsm_fhtom_xx((v), (v3), &mb, &bpos); \ 80 nfsm_bcheck(t1, mreq); \ 81 } while (0) 82 83 /* If full is true, set all fields, otherwise just set mode and time fields */ 84 #define nfsm_v3attrbuild(a, full) \ 85 nfsm_v3attrbuild_xx(a, full, &mb, &bpos) 86 87 #define nfsm_uiotom(p, s) \ 88 do { \ 89 int t1; \ 90 t1 = nfsm_uiotombuf((p), &mb, (s), &bpos); \ 91 nfsm_bcheck(t1, mreq); \ 92 } while (0) 93 94 #define nfsm_strtom(a, s, m) \ 95 do { \ 96 int t1; \ 97 t1 = nfsm_strtom_xx((a), (s), (m), &mb, &bpos); \ 98 nfsm_bcheck(t1, mreq); \ 99 } while (0) 100 101 /* *********************************** */ 102 /* Send the request */ 103 104 #define nfsm_request(v, t, p, c) \ 105 do { \ 106 sigset_t oldset; \ 107 nfs_set_sigmask(p, &oldset); \ 108 error = nfs_request((v), mreq, (t), (p), (c), &mrep, &md, &dpos); \ 109 nfs_restore_sigmask(p, &oldset); \ 110 if (error != 0) { \ 111 if (error & NFSERR_RETERR) \ 112 error &= ~NFSERR_RETERR; \ 113 else \ 114 goto nfsmout; \ 115 } \ 116 } while (0) 117 118 /* *********************************** */ 119 /* Reply interpretation phase macros */ 120 121 int nfsm_mtofh_xx(struct vnode *d, struct vnode **v, int v3, int *f, 122 struct mbuf **md, caddr_t *dpos); 123 int nfsm_getfh_xx(nfsfh_t **f, int *s, int v3, struct mbuf **md, 124 caddr_t *dpos); 125 int nfsm_loadattr_xx(struct vnode **v, struct vattr *va, struct mbuf **md, 126 caddr_t *dpos); 127 int nfsm_postop_attr_xx(struct vnode **v, int *f, struct vattr *va, 128 struct mbuf **md, caddr_t *dpos); 129 int nfsm_wcc_data_xx(struct vnode **v, int *f, struct mbuf **md, 130 caddr_t *dpos); 131 132 #define nfsm_mtofh(d, v, v3, f) \ 133 do { \ 134 int32_t t1; \ 135 t1 = nfsm_mtofh_xx((d), &(v), (v3), &(f), &md, &dpos); \ 136 nfsm_dcheck(t1, mrep); \ 137 } while (0) 138 139 #define nfsm_getfh(f, s, v3) \ 140 do { \ 141 int32_t t1; \ 142 t1 = nfsm_getfh_xx(&(f), &(s), (v3), &md, &dpos); \ 143 nfsm_dcheck(t1, mrep); \ 144 } while (0) 145 146 #define nfsm_loadattr(v, a) \ 147 do { \ 148 int32_t t1; \ 149 t1 = nfsm_loadattr_xx(&v, a, &md, &dpos); \ 150 nfsm_dcheck(t1, mrep); \ 151 } while (0) 152 153 #define nfsm_postop_attr(v, f) \ 154 do { \ 155 int32_t t1; \ 156 t1 = nfsm_postop_attr_xx(&v, &f, NULL, &md, &dpos); \ 157 nfsm_dcheck(t1, mrep); \ 158 } while (0) 159 160 #define nfsm_postop_attr_va(v, f, va) \ 161 do { \ 162 int32_t t1; \ 163 t1 = nfsm_postop_attr_xx(&v, &f, va, &md, &dpos); \ 164 nfsm_dcheck(t1, mrep); \ 165 } while (0) 166 167 /* Used as (f) for nfsm_wcc_data() */ 168 #define NFSV3_WCCRATTR 0 169 #define NFSV3_WCCCHK 1 170 171 #define nfsm_wcc_data(v, f) \ 172 do { \ 173 int32_t t1; \ 174 t1 = nfsm_wcc_data_xx(&v, &f, &md, &dpos); \ 175 nfsm_dcheck(t1, mrep); \ 176 } while (0) 177 178 #endif 179