1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2009 Rick Macklem, University of Guelph 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _NFS_NFSCL_H 32 #define _NFS_NFSCL_H 33 34 /* 35 * Extra stuff for a NFSv4 nfsnode. 36 * MALLOC'd to the correct length for the name and file handle. 37 * n4_data has the file handle, followed by the file name. 38 * The macro NFS4NODENAME() returns a pointer to the start of the 39 * name. 40 */ 41 struct nfsv4node { 42 u_int16_t n4_fhlen; 43 u_int16_t n4_namelen; 44 u_int8_t n4_data[1]; 45 }; 46 47 #define NFS4NODENAME(n) (&((n)->n4_data[(n)->n4_fhlen])) 48 49 /* 50 * Just a macro to convert the nfscl_reqstart arguments. 51 */ 52 #define NFSCL_REQSTART(n, p, v) \ 53 nfscl_reqstart((n), (p), VFSTONFS((v)->v_mount), \ 54 VTONFS(v)->n_fhp->nfh_fh, VTONFS(v)->n_fhp->nfh_len, NULL, \ 55 NULL, 0, 0) 56 57 /* 58 * These two macros convert between a lease duration and renew interval. 59 * For now, just make the renew interval 1/2 the lease duration. 60 * (They should be inverse operators.) 61 */ 62 #define NFSCL_RENEW(l) (((l) < 2) ? 1 : ((l) / 2)) 63 #define NFSCL_LEASE(r) ((r) * 2) 64 65 /* This macro checks to see if a forced dismount is about to occur. */ 66 #define NFSCL_FORCEDISM(m) (((m)->mnt_kern_flag & MNTK_UNMOUNTF) != 0 || \ 67 (VFSTONFS(m)->nm_privflag & NFSMNTP_FORCEDISM) != 0) 68 69 /* 70 * These flag bits are used for the argument to nfscl_fillsattr() to 71 * indicate special handling of the attributes. 72 */ 73 #define NFSSATTR_FULL 0x1 74 #define NFSSATTR_SIZE0 0x2 75 #define NFSSATTR_SIZENEG1 0x4 76 #define NFSSATTR_SIZERDEV 0x8 77 78 /* Use this macro for debug printfs. */ 79 #define NFSCL_DEBUG(level, ...) do { \ 80 if (nfscl_debuglevel >= (level)) \ 81 printf(__VA_ARGS__); \ 82 } while (0) 83 84 struct nfscl_reconarg { 85 int minorvers; 86 uint8_t sessionid[NFSX_V4SESSIONID]; 87 }; 88 89 #endif /* _NFS_NFSCL_H */ 90