1270096Strasz/*- 2332596Strasz * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3332596Strasz * 4270096Strasz * Copyright (c) 2014 The FreeBSD Foundation 5270096Strasz * All rights reserved. 6270096Strasz * 7270096Strasz * This software was developed by Edward Tomasz Napierala under sponsorship 8270096Strasz * from the FreeBSD Foundation. 9270096Strasz * 10270096Strasz * Redistribution and use in source and binary forms, with or without 11270096Strasz * modification, are permitted provided that the following conditions 12270096Strasz * are met: 13270096Strasz * 1. Redistributions of source code must retain the above copyright 14270096Strasz * notice, this list of conditions and the following disclaimer. 15270096Strasz * 2. Redistributions in binary form must reproduce the above copyright 16270096Strasz * notice, this list of conditions and the following disclaimer in the 17270096Strasz * documentation and/or other materials provided with the distribution. 18270096Strasz * 19270096Strasz * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20270096Strasz * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21270096Strasz * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22270096Strasz * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23270096Strasz * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24270096Strasz * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25270096Strasz * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26270096Strasz * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27270096Strasz * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28270096Strasz * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29270096Strasz * SUCH DAMAGE. 30270096Strasz * 31270096Strasz * $FreeBSD: stable/11/sys/fs/autofs/autofs.h 332596 2018-04-16 16:15:31Z trasz $ 32270096Strasz */ 33270096Strasz 34270096Strasz#ifndef AUTOFS_H 35270096Strasz#define AUTOFS_H 36270096Strasz 37270096Strasz#define VFSTOAUTOFS(mp) ((struct autofs_mount *)((mp)->mnt_data)) 38270096Strasz 39270096StraszMALLOC_DECLARE(M_AUTOFS); 40270096Strasz 41270096Straszextern uma_zone_t autofs_request_zone; 42270096Straszextern uma_zone_t autofs_node_zone; 43270096Strasz 44270096Straszextern int autofs_debug; 45270096Straszextern int autofs_mount_on_stat; 46270096Strasz 47272471Strasz#define AUTOFS_DEBUG(X, ...) \ 48272471Strasz do { \ 49272471Strasz if (autofs_debug > 1) \ 50272471Strasz printf("%s: " X "\n", __func__, ## __VA_ARGS__);\ 51270096Strasz } while (0) 52270096Strasz 53272471Strasz#define AUTOFS_WARN(X, ...) \ 54272471Strasz do { \ 55272471Strasz if (autofs_debug > 0) { \ 56272471Strasz printf("WARNING: %s: " X "\n", \ 57272471Strasz __func__, ## __VA_ARGS__); \ 58272471Strasz } \ 59270096Strasz } while (0) 60270096Strasz 61272470Strasz#define AUTOFS_SLOCK(X) sx_slock(&X->am_lock) 62272470Strasz#define AUTOFS_XLOCK(X) sx_xlock(&X->am_lock) 63272470Strasz#define AUTOFS_SUNLOCK(X) sx_sunlock(&X->am_lock) 64272470Strasz#define AUTOFS_XUNLOCK(X) sx_xunlock(&X->am_lock) 65272470Strasz#define AUTOFS_ASSERT_LOCKED(X) sx_assert(&X->am_lock, SA_LOCKED) 66272470Strasz#define AUTOFS_ASSERT_XLOCKED(X) sx_assert(&X->am_lock, SA_XLOCKED) 67270096Strasz#define AUTOFS_ASSERT_UNLOCKED(X) sx_assert(&X->am_lock, SA_UNLOCKED) 68270096Strasz 69270096Straszstruct autofs_node { 70297236Strasz RB_ENTRY(autofs_node) an_link; 71270096Strasz char *an_name; 72270096Strasz int an_fileno; 73270096Strasz struct autofs_node *an_parent; 74297236Strasz RB_HEAD(autofs_node_tree, 75297236Strasz autofs_node) an_children; 76270096Strasz struct autofs_mount *an_mount; 77270096Strasz struct vnode *an_vnode; 78270096Strasz struct sx an_vnode_lock; 79270096Strasz bool an_cached; 80273127Strasz bool an_wildcards; 81270096Strasz struct callout an_callout; 82270096Strasz int an_retries; 83270096Strasz struct timespec an_ctime; 84270096Strasz}; 85270096Strasz 86270096Straszstruct autofs_mount { 87270096Strasz TAILQ_ENTRY(autofs_mount) am_next; 88270096Strasz struct autofs_node *am_root; 89270096Strasz struct mount *am_mp; 90270096Strasz struct sx am_lock; 91270096Strasz char am_from[MAXPATHLEN]; 92270096Strasz char am_mountpoint[MAXPATHLEN]; 93270096Strasz char am_options[MAXPATHLEN]; 94270096Strasz char am_prefix[MAXPATHLEN]; 95270096Strasz int am_last_fileno; 96270096Strasz}; 97270096Strasz 98270096Straszstruct autofs_request { 99270096Strasz TAILQ_ENTRY(autofs_request) ar_next; 100270096Strasz struct autofs_mount *ar_mount; 101270096Strasz int ar_id; 102270096Strasz bool ar_done; 103270096Strasz int ar_error; 104273127Strasz bool ar_wildcards; 105270096Strasz bool ar_in_progress; 106270096Strasz char ar_from[MAXPATHLEN]; 107270096Strasz char ar_path[MAXPATHLEN]; 108270096Strasz char ar_prefix[MAXPATHLEN]; 109270096Strasz char ar_key[MAXPATHLEN]; 110270096Strasz char ar_options[MAXPATHLEN]; 111272403Strasz struct timeout_task ar_task; 112270096Strasz volatile u_int ar_refcount; 113270096Strasz}; 114270096Strasz 115270096Straszstruct autofs_softc { 116270096Strasz device_t sc_dev; 117270096Strasz struct cdev *sc_cdev; 118270096Strasz struct cv sc_cv; 119270096Strasz struct sx sc_lock; 120270096Strasz TAILQ_HEAD(, autofs_request) sc_requests; 121270096Strasz bool sc_dev_opened; 122270096Strasz pid_t sc_dev_sid; 123270096Strasz int sc_last_request_id; 124270096Strasz}; 125270096Strasz 126270096Straszint autofs_init(struct vfsconf *vfsp); 127270096Straszint autofs_uninit(struct vfsconf *vfsp); 128270096Straszint autofs_trigger(struct autofs_node *anp, const char *component, 129270096Strasz int componentlen); 130270096Straszbool autofs_cached(struct autofs_node *anp, const char *component, 131270096Strasz int componentlen); 132274859Straszvoid autofs_flush(struct autofs_mount *amp); 133270096Straszbool autofs_ignore_thread(const struct thread *td); 134270096Straszint autofs_node_new(struct autofs_node *parent, struct autofs_mount *amp, 135270096Strasz const char *name, int namelen, struct autofs_node **anpp); 136270096Straszint autofs_node_find(struct autofs_node *parent, 137270096Strasz const char *name, int namelen, struct autofs_node **anpp); 138270096Straszvoid autofs_node_delete(struct autofs_node *anp); 139270096Straszint autofs_node_vn(struct autofs_node *anp, struct mount *mp, 140272512Strasz int flags, struct vnode **vpp); 141270096Strasz 142297236StraszRB_PROTOTYPE(autofs_node_tree, autofs_node, an_link, autofs_node_cmp); 143297236Strasz 144270096Strasz#endif /* !AUTOFS_H */ 145