1 /* $OpenBSD: fuse_file.c,v 1.8 2014/03/18 08:51:53 mpi 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 #include <sys/param.h> 19 #include <sys/systm.h> 20 #include <sys/statvfs.h> 21 #include <sys/vnode.h> 22 #include <sys/fusebuf.h> 23 24 #include "fusefs_node.h" 25 #include "fusefs.h" 26 27 int 28 fusefs_file_open(struct fusefs_mnt *fmp, struct fusefs_node *ip, 29 enum fufh_type fufh_type, int flags, int isdir, struct proc *p) 30 { 31 struct fusebuf *fbuf; 32 int error = 0; 33 34 if (!fmp->sess_init) 35 return (0); 36 37 fbuf = fb_setup(0, ip->ufs_ino.i_number, 38 ((isdir) ? FBT_OPENDIR : FBT_OPEN), p); 39 fbuf->fb_io_flags = flags; 40 41 error = fb_queue(fmp->dev, fbuf); 42 if (error) { 43 fb_delete(fbuf); 44 return (error); 45 } 46 47 ip->fufh[fufh_type].fh_id = fbuf->fb_io_fd; 48 ip->fufh[fufh_type].fh_type = fufh_type; 49 50 fb_delete(fbuf); 51 return (0); 52 } 53 54 int 55 fusefs_file_close(struct fusefs_mnt *fmp, struct fusefs_node * ip, 56 enum fufh_type fufh_type, int flags, int isdir, struct proc *p) 57 { 58 struct fusebuf *fbuf; 59 int error = 0; 60 61 if (fmp->sess_init) { 62 fbuf = fb_setup(0, ip->ufs_ino.i_number, 63 ((isdir) ? FBT_RELEASEDIR : FBT_RELEASE), p); 64 fbuf->fb_io_fd = ip->fufh[fufh_type].fh_id; 65 fbuf->fb_io_flags = flags; 66 67 error = fb_queue(fmp->dev, fbuf); 68 if (error && (error != ENOSYS)) 69 printf("fusefs: file error %d\n", error); 70 71 fb_delete(fbuf); 72 } 73 74 ip->fufh[fufh_type].fh_id = (uint64_t)-1; 75 ip->fufh[fufh_type].fh_type = FUFH_INVALID; 76 77 return (error); 78 } 79 80 uint64_t 81 fusefs_fd_get(struct fusefs_node *ip, enum fufh_type type) 82 { 83 if (ip->fufh[type].fh_type == FUFH_INVALID) 84 type = FUFH_RDWR; 85 86 return (ip->fufh[type].fh_id); 87 } 88