freebsd-skq/sys/fs/nfs/nfsdport.h
Rick Macklem 37fe683250 Fix the NFSVNO_CMPFH() macro in the experimental NFS server so
that it works correctly for ZFS file handles. It is possible to
have two ZFS file handles that differ only in the bytes in the
fid_reserved field of the generic "struct fid" and comparing the
bytes in fid_data didn't catch this case. This patch changes the
macro to compare all bytes of "struct fid".

Tested by:	gull at gull.us
MFC after:	2 weeks
2010-09-10 23:18:45 +00:00

105 lines
4.1 KiB
C

/*-
* Copyright (c) 2009 Rick Macklem, University of Guelph
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* These macros handle nfsvattr fields. They look a bit silly here, but
* are quite different for the Darwin port.
*/
#define NFSVNO_ATTRINIT(n) (VATTR_NULL(&((n)->na_vattr)))
#define NFSVNO_SETATTRVAL(n, f, v) ((n)->na_##f = (v))
#define NFSVNO_SETACTIVE(n, f)
#define NFSVNO_UNSET(n, f) ((n)->na_##f = VNOVAL)
#define NFSVNO_NOTSETMODE(n) ((n)->na_mode == ((mode_t)VNOVAL))
#define NFSVNO_ISSETMODE(n) ((n)->na_mode != ((mode_t)VNOVAL))
#define NFSVNO_NOTSETUID(n) ((n)->na_uid == ((uid_t)VNOVAL))
#define NFSVNO_ISSETUID(n) ((n)->na_uid != ((uid_t)VNOVAL))
#define NFSVNO_NOTSETGID(n) ((n)->na_gid == ((gid_t)VNOVAL))
#define NFSVNO_ISSETGID(n) ((n)->na_gid != ((gid_t)VNOVAL))
#define NFSVNO_NOTSETSIZE(n) ((n)->na_size == VNOVAL)
#define NFSVNO_ISSETSIZE(n) ((n)->na_size != VNOVAL)
#define NFSVNO_NOTSETATIME(n) ((n)->na_atime.tv_sec == VNOVAL)
#define NFSVNO_ISSETATIME(n) ((n)->na_atime.tv_sec != VNOVAL)
#define NFSVNO_NOTSETMTIME(n) ((n)->na_mtime.tv_sec == VNOVAL)
#define NFSVNO_ISSETMTIME(n) ((n)->na_mtime.tv_sec != VNOVAL)
/*
* This structure acts as a "catch-all" for information that
* needs to be returned by nfsd_fhtovp().
*/
struct nfsexstuff {
int nes_vfslocked; /* required for all ports */
int nes_exflag; /* export flags */
int nes_numsecflavor; /* # of security flavors */
int nes_secflavors[MAXSECFLAVORS]; /* and the flavors */
};
#define NFSVNO_EXINIT(e) ((e)->nes_exflag = 0)
#define NFSVNO_EXPORTED(e) ((e)->nes_exflag & MNT_EXPORTED)
#define NFSVNO_EXRDONLY(e) ((e)->nes_exflag & MNT_EXRDONLY)
#define NFSVNO_EXPORTANON(e) ((e)->nes_exflag & MNT_EXPORTANON)
#define NFSVNO_EXSTRICTACCESS(e) ((e)->nes_exflag & MNT_EXSTRICTACCESS)
#define NFSVNO_EXV4ONLY(e) ((e)->nes_exflag & MNT_EXV4ONLY)
#define NFSVNO_SETEXRDONLY(e) ((e)->nes_exflag = (MNT_EXPORTED|MNT_EXRDONLY))
#define NFSVNO_CMPFH(f1, f2) \
((f1)->fh_fsid.val[0] == (f2)->fh_fsid.val[0] && \
(f1)->fh_fsid.val[1] == (f2)->fh_fsid.val[1] && \
bcmp(&(f1)->fh_fid, &(f2)->fh_fid, sizeof(struct fid)) == 0)
#define NFSLOCKHASH(f) \
(&nfslockhash[(*((u_int32_t *)((f)->fh_fid.fid_data))) % NFSLOCKHASHSIZE])
#define NFSFPVNODE(f) ((struct vnode *)((f)->f_data))
#define NFSFPCRED(f) ((f)->f_cred)
#define NFSFPFLAG(f) ((f)->f_flag)
int fp_getfvp(NFSPROC_T *, int, struct file **, struct vnode **);
#define NFSNAMEICNDSET(n, c, o, f) do { \
(n)->cn_cred = (c); \
(n)->cn_nameiop = (o); \
(n)->cn_flags = (f); \
} while (0)
/*
* A little bit of Darwin vfs kpi.
*/
#define vnode_mount(v) ((v)->v_mount)
#define vfs_statfs(m) (&((m)->mnt_stat))
#define NFSPATHLEN_T size_t
/*
* These are set to the minimum and maximum size of a server file
* handle.
*/
#define NFSRV_MINFH (sizeof (fhandle_t))
#define NFSRV_MAXFH (sizeof (fhandle_t))