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author | alfred <alfred@FreeBSD.org> | 1999-09-11 00:57:20 +0000 |
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committer | alfred <alfred@FreeBSD.org> | 1999-09-11 00:57:20 +0000 |
commit | b5a29f808009bfe1f6e8a1d8efb222cdb05157b3 (patch) | |
tree | b2febb4acf6f8997a8774d23301eee49ec8ab94e /share/man/man9/VFS_CHECKEXP.9 | |
parent | 44374643d1829aa9b3f54541623a984a337a8872 (diff) | |
download | FreeBSD-src-b5a29f808009bfe1f6e8a1d8efb222cdb05157b3.zip FreeBSD-src-b5a29f808009bfe1f6e8a1d8efb222cdb05157b3.tar.gz |
Document VFS changes:
VFS_CHECKEXP.9, now used to check export credentials
VFS_FHTOVP.9, only used for filehandle to vnode, no access checks are done.
VFS.9, inform people of the vfs_std* functions available to avoid
ugly casts to eopnotsup and making of dummy functions to return 0.
Diffstat (limited to 'share/man/man9/VFS_CHECKEXP.9')
-rw-r--r-- | share/man/man9/VFS_CHECKEXP.9 | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/share/man/man9/VFS_CHECKEXP.9 b/share/man/man9/VFS_CHECKEXP.9 new file mode 100644 index 0000000..024278b --- /dev/null +++ b/share/man/man9/VFS_CHECKEXP.9 @@ -0,0 +1,94 @@ +.\" -*- nroff -*- +.\" +.\" Copyright (c) 1996 Doug Rabson +.\" +.\" All rights reserved. +.\" +.\" This program is free software. +.\" +.\" 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 DEVELOPERS ``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 DEVELOPERS 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. +.\" +.\" $Id: VFS_FHTOVP.9,v 1.4 1998/08/03 17:29:44 bde Exp $ +.\" $FreeBSD$ +.\" +.Dd July 24, 1996 +.Os +.Dt VFS_CHECKEXP 9 +.Sh NAME +.Nm VFS_CHECKEXP +.Nd check if vnode is exported to a client +.Sh SYNOPSIS +.Fd #include <sys/param.h> +.Fd #include <sys/mount.h> +.Fd #include <sys/vnode.h> +.Ft int +.Fn VFS_CHECKEXP "struct mount *mp" "struct mbuf *nam" "int *exflagsp" "struct ucred **credanonp" +.Sh DESCRIPTION +This is used by the NFS server to check if a vnode is exported to a client. +.Pp +Its arguments are: +.Bl -tag -width credanonp +.It Ar mp +The mount point to be checked. +.It Ar nam +An mbuf containing the network address of the client. +.It Ar exflagsp +Return parameter for the export flags for this client. +.It Ar credanonp +Return parameter for the anonymous credentials for this client. +.El +.Pp +This should be called on a file system's mount structure to determine if it +is exported to a client whos address is contained in +.Fa nam . +.Pp +It is generally called before +.Xr VFS_FHTOVP 9 +to validate that a client has access to the filesystem. +.Pp +The filesystem should call +.Xr vfs_export_lookup 9 +with the address of an appropriate +.Dv netexport +structure and the address of the client, +.Fa nam , +to verify that the client can access this filesystem. +.Pp +.Sh RETURN VALUES +The export flags and anonymous credentials specific to the client +will be returned in +.Fa *exflagsp +and +.Fa *credanonp . +.Sh SEE ALSO +.Xr VFS 9 , +.Xr VFS_FHTOVP 9 , +.Xr VFS_VPTOFH 9 , +.Xr vnode 9 +.Sh AUTHORS +This man page was written by +.An Doug Rabson , +for +.Xr VFS_FHTOVP 9 +and modified for +.Xr VFS_CHECKEXP 9 +by +.An Alfred Perlstein . |