d63027b668
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
214 lines
5.0 KiB
C
214 lines
5.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2001 Dag-Erling Coïdan Smørgrav
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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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* in this position and unchanged.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _PSEUDOFS_INTERNAL_H_INCLUDED
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#define _PSEUDOFS_INTERNAL_H_INCLUDED
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/*
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* Sysctl subtree
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*/
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SYSCTL_DECL(_vfs_pfs);
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/*
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* Vnode data
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*/
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struct pfs_vdata {
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struct pfs_node *pvd_pn;
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pid_t pvd_pid;
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struct vnode *pvd_vnode;
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struct pfs_vdata*pvd_prev, *pvd_next;
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int pvd_dead:1;
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};
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/*
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* Vnode cache
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*/
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void pfs_vncache_load (void);
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void pfs_vncache_unload (void);
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int pfs_vncache_alloc (struct mount *, struct vnode **,
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struct pfs_node *, pid_t pid);
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int pfs_vncache_free (struct vnode *);
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/*
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* File number bitmap
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*/
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void pfs_fileno_init (struct pfs_info *);
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void pfs_fileno_uninit (struct pfs_info *);
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void pfs_fileno_alloc (struct pfs_node *);
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void pfs_fileno_free (struct pfs_node *);
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/*
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* Debugging
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*/
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#ifdef PSEUDOFS_TRACE
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extern int pfs_trace;
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#define PFS_TRACE(foo) \
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do { \
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if (pfs_trace) { \
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printf("%s(): line %d: ", __func__, __LINE__); \
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printf foo ; \
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printf("\n"); \
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} \
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} while (0)
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#define PFS_RETURN(err) \
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do { \
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if (pfs_trace) { \
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printf("%s(): line %d: returning %d\n", \
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__func__, __LINE__, err); \
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} \
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return (err); \
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} while (0)
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#else
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#define PFS_TRACE(foo) \
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do { /* nothing */ } while (0)
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#define PFS_RETURN(err) \
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return (err)
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#endif
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/*
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* Inline helpers for locking
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*/
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static inline void
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pfs_lock(struct pfs_node *pn)
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{
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mtx_lock(&pn->pn_mutex);
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}
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static inline void
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pfs_unlock(struct pfs_node *pn)
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{
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mtx_unlock(&pn->pn_mutex);
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}
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static inline void
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pfs_assert_owned(struct pfs_node *pn)
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{
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mtx_assert(&pn->pn_mutex, MA_OWNED);
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}
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static inline void
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pfs_assert_not_owned(struct pfs_node *pn)
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{
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mtx_assert(&pn->pn_mutex, MA_NOTOWNED);
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}
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static inline int
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pn_fill(PFS_FILL_ARGS)
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{
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PFS_TRACE(("%s", pn->pn_name));
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KASSERT(pn->pn_fill != NULL, ("%s(): no callback", __func__));
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if (p != NULL) {
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PROC_LOCK_ASSERT(p, MA_NOTOWNED);
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PROC_ASSERT_HELD(p);
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}
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pfs_assert_not_owned(pn);
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return ((pn->pn_fill)(PFS_FILL_ARGNAMES));
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}
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static inline int
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pn_attr(PFS_ATTR_ARGS)
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{
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PFS_TRACE(("%s", pn->pn_name));
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KASSERT(pn->pn_attr != NULL, ("%s(): no callback", __func__));
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if (p != NULL)
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PROC_LOCK_ASSERT(p, MA_OWNED);
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pfs_assert_not_owned(pn);
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return ((pn->pn_attr)(PFS_ATTR_ARGNAMES));
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}
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static inline int
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pn_vis(PFS_VIS_ARGS)
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{
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PFS_TRACE(("%s", pn->pn_name));
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KASSERT(pn->pn_vis != NULL, ("%s(): no callback", __func__));
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KASSERT(p != NULL, ("%s(): no process", __func__));
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PROC_LOCK_ASSERT(p, MA_OWNED);
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pfs_assert_not_owned(pn);
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return ((pn->pn_vis)(PFS_VIS_ARGNAMES));
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}
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static inline int
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pn_ioctl(PFS_IOCTL_ARGS)
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{
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PFS_TRACE(("%s", pn->pn_name));
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KASSERT(pn->pn_ioctl != NULL, ("%s(): no callback", __func__));
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if (p != NULL)
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PROC_LOCK_ASSERT(p, MA_OWNED);
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pfs_assert_not_owned(pn);
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return ((pn->pn_ioctl)(PFS_IOCTL_ARGNAMES));
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}
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static inline int
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pn_getextattr(PFS_GETEXTATTR_ARGS)
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{
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PFS_TRACE(("%s", pn->pn_name));
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KASSERT(pn->pn_getextattr != NULL, ("%s(): no callback", __func__));
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if (p != NULL)
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PROC_LOCK_ASSERT(p, MA_OWNED);
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pfs_assert_not_owned(pn);
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return ((pn->pn_getextattr)(PFS_GETEXTATTR_ARGNAMES));
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}
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static inline int
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pn_close(PFS_CLOSE_ARGS)
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{
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PFS_TRACE(("%s", pn->pn_name));
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KASSERT(pn->pn_close != NULL, ("%s(): no callback", __func__));
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if (p != NULL)
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PROC_LOCK_ASSERT(p, MA_OWNED);
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pfs_assert_not_owned(pn);
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return ((pn->pn_close)(PFS_CLOSE_ARGNAMES));
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}
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static inline int
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pn_destroy(PFS_DESTROY_ARGS)
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{
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PFS_TRACE(("%s", pn->pn_name));
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KASSERT(pn->pn_destroy != NULL, ("%s(): no callback", __func__));
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pfs_assert_not_owned(pn);
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return ((pn->pn_destroy)(PFS_DESTROY_ARGNAMES));
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}
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#endif
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