1 /* $OpenBSD: fusefs_node.h,v 1.5 2024/10/31 13:55:21 claudio Exp $ */ 2 /* 3 * Copyright (c) 2012-2013 Sylvestre Gallon <ccna.syl@gmail.com> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #ifndef _FUSEFS_NODE_H_ 19 #define _FUSEFS_NODE_H_ 20 21 #include <sys/queue.h> 22 23 enum fufh_type { 24 FUFH_INVALID = -1, 25 FUFH_RDONLY = 0, 26 FUFH_WRONLY = 1, 27 FUFH_RDWR = 2, 28 FUFH_MAXTYPE = 3, 29 }; 30 31 struct fusefs_filehandle { 32 uint64_t fh_id; 33 enum fufh_type fh_type; 34 }; 35 36 struct fusefs_mnt; 37 struct fusefs_node { 38 LIST_ENTRY(fusefs_node) i_hash; /* Hash chain */ 39 struct vnode *i_vnode;/* Vnode associated with this inode. */ 40 struct fusefs_mnt *i_ump; 41 dev_t i_dev; /* Device associated with the inode. */ 42 ino_t i_number; /* The identity of the inode. */ 43 struct lockf_state *i_lockf; /* Byte-level lock state. */ 44 struct rrwlock i_lock; /* Inode lock */ 45 46 /** I/O **/ 47 struct fusefs_filehandle fufh[FUFH_MAXTYPE]; 48 49 /** meta **/ 50 off_t filesize; 51 }; 52 53 #ifdef ITOV 54 # undef ITOV 55 #endif 56 #define ITOV(ip) ((ip)->i_vnode) 57 58 #ifdef VTOI 59 # undef VTOI 60 #endif 61 #define VTOI(vp) ((struct fusefs_node *)(vp)->v_data) 62 63 void fuse_ihashinit(void); 64 struct vnode *fuse_ihashget(dev_t, ino_t); 65 int fuse_ihashins(struct fusefs_node *); 66 void fuse_ihashrem(struct fusefs_node *); 67 68 uint64_t fusefs_fd_get(struct fusefs_node *, enum fufh_type); 69 70 #endif /* _FUSEFS_NODE_H_ */ 71