4476c1def0
should be used. For KERN_TLS (and possibly some other future network interface) the mbuf list passed into sosend() must be ext_pgs mbufs. The krpc could simply copy all the mbuf data into ext_pgs mbufs before calling sosend(), but that would be inefficient for large RPC messages. This patch adds an argument to nfscl_reqstart() to indicate that it should fill the RPC message into ext_pgs mbufs. It also adds fields to "struct nfsrv_descript" needed for building NFS RPC messages in ext_pgs mbufs, along with new flags for this. Since the argument is always "false", this commit should not result in any semantic change. However, this commit prepares the code for future commits that will add support for building of NFS RPC messages in ext_pgs mbufs.
85 lines
3.0 KiB
C
85 lines
3.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2009 Rick Macklem, University of Guelph
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NFS_NFSCL_H
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#define _NFS_NFSCL_H
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/*
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* Extra stuff for a NFSv4 nfsnode.
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* MALLOC'd to the correct length for the name and file handle.
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* n4_data has the file handle, followed by the file name.
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* The macro NFS4NODENAME() returns a pointer to the start of the
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* name.
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*/
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struct nfsv4node {
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u_int16_t n4_fhlen;
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u_int16_t n4_namelen;
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u_int8_t n4_data[1];
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};
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#define NFS4NODENAME(n) (&((n)->n4_data[(n)->n4_fhlen]))
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/*
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* Just a macro to convert the nfscl_reqstart arguments.
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*/
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#define NFSCL_REQSTART(n, p, v) \
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nfscl_reqstart((n), (p), VFSTONFS((v)->v_mount), \
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VTONFS(v)->n_fhp->nfh_fh, VTONFS(v)->n_fhp->nfh_len, NULL, \
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NULL, 0, 0, false)
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/*
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* These two macros convert between a lease duration and renew interval.
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* For now, just make the renew interval 1/2 the lease duration.
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* (They should be inverse operators.)
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*/
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#define NFSCL_RENEW(l) (((l) < 2) ? 1 : ((l) / 2))
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#define NFSCL_LEASE(r) ((r) * 2)
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/* This macro checks to see if a forced dismount is about to occur. */
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#define NFSCL_FORCEDISM(m) (((m)->mnt_kern_flag & MNTK_UNMOUNTF) != 0 || \
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(VFSTONFS(m)->nm_privflag & NFSMNTP_FORCEDISM) != 0)
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/*
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* These flag bits are used for the argument to nfscl_fillsattr() to
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* indicate special handling of the attributes.
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*/
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#define NFSSATTR_FULL 0x1
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#define NFSSATTR_SIZE0 0x2
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#define NFSSATTR_SIZENEG1 0x4
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#define NFSSATTR_SIZERDEV 0x8
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/* Use this macro for debug printfs. */
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#define NFSCL_DEBUG(level, ...) do { \
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if (nfscl_debuglevel >= (level)) \
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printf(__VA_ARGS__); \
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} while (0)
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#endif /* _NFS_NFSCL_H */
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