/* $NetBSD: amfs_direct.c,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $ */ /* * Copyright (c) 1997-2014 Erez Zadok * Copyright (c) 1990 Jan-Simon Pendry * Copyright (c) 1990 Imperial College of Science, Technology & Medicine * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry at Imperial College, London. * * 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * * File: am-utils/amd/amfs_direct.c * */ /* * Direct file system */ #ifdef HAVE_CONFIG_H # include #endif /* HAVE_CONFIG_H */ #include #include /**************************************************************************** *** FORWARD DEFINITIONS *** ****************************************************************************/ static am_node *amfs_direct_readlink(am_node *mp, int *error_return); /**************************************************************************** *** OPS STRUCTURES *** ****************************************************************************/ am_ops amfs_direct_ops = { "direct", amfs_generic_match, 0, /* amfs_direct_init */ amfs_toplvl_mount, amfs_toplvl_umount, amfs_generic_lookup_child, amfs_generic_mount_child, amfs_error_readdir, amfs_direct_readlink, amfs_generic_mounted, 0, /* amfs_direct_umounted */ amfs_generic_find_srvr, 0, /* amfs_direct_get_wchan */ FS_DIRECT | FS_MKMNT | FS_NOTIMEOUT | FS_BACKGROUND | FS_AMQINFO, #ifdef HAVE_FS_AUTOFS AUTOFS_DIRECT_FS_FLAGS, #endif /* HAVE_FS_AUTOFS */ }; /**************************************************************************** *** FUNCTIONS *** ****************************************************************************/ static am_node * amfs_direct_readlink(am_node *mp, int *error_return) { am_node *xp; int rc = 0; xp = next_nonerror_node(mp->am_child); if (!xp) { if (!mp->am_al->al_mnt->mf_private) amfs_mkcacheref(mp->am_al->al_mnt); xp = amfs_generic_lookup_child(mp, mp->am_path + 1, &rc, VLOOK_CREATE); if (xp && rc < 0) xp = amfs_generic_mount_child(xp, &rc); } if (xp) { new_ttl(xp); /* (7/12/89) from Rein Tollevik */ return xp; } if (amd_state == Finishing) rc = ENOENT; *error_return = rc; return 0; }