2 * Copyright (c) 2007-2009 Google Inc. and Amit Singh
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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31 * Copyright (C) 2005 Csaba Henk.
32 * All rights reserved.
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
37 * 1. Redistributions of source code must retain the above copyright
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48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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61 #include <sys/types.h>
62 #include <sys/fcntl.h>
65 #include <sys/vnode.h>
67 typedef enum fufh_type {
75 struct fuse_filehandle {
80 #define FUFH_IS_VALID(f) ((f)->fh_type != FUFH_INVALID)
84 fuse_filehandle_xlate_from_mmap(int fflags)
86 if (fflags & (PROT_READ | PROT_WRITE)) {
88 } else if (fflags & (PROT_WRITE)) {
90 } else if ((fflags & PROT_READ) || (fflags & PROT_EXEC)) {
99 fuse_filehandle_xlate_from_fflags(int fflags)
101 if ((fflags & FREAD) && (fflags & FWRITE)) {
103 } else if (fflags & (FWRITE)) {
105 } else if (fflags & (FREAD)) {
108 panic("FUSE: What kind of a flag is this (%x)?", fflags);
114 fuse_filehandle_xlate_to_oflags(fufh_type_t type)
139 int fuse_filehandle_valid(struct vnode *vp, fufh_type_t fufh_type);
140 int fuse_filehandle_get(struct vnode *vp, fufh_type_t fufh_type,
141 struct fuse_filehandle **fufhp);
142 int fuse_filehandle_getrw(struct vnode *vp, fufh_type_t fufh_type,
143 struct fuse_filehandle **fufhp);
145 void fuse_filehandle_init(struct vnode *vp, fufh_type_t fufh_type,
146 struct fuse_filehandle **fufhp, uint64_t fh_id);
147 int fuse_filehandle_open(struct vnode *vp, fufh_type_t fufh_type,
148 struct fuse_filehandle **fufhp, struct thread *td,
150 int fuse_filehandle_close(struct vnode *vp, fufh_type_t fufh_type,
151 struct thread *td, struct ucred *cred);
153 #endif /* _FUSE_FILE_H_ */