1 /* 2 * Copyright (c) 2013 The DragonFly Project. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 3. Neither the name of The DragonFly Project nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific, prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #define _KERNEL_STRUCTURES 33 34 #include <sys/param.h> 35 #include <sys/stat.h> 36 #include <sys/time.h> 37 38 #include <kvm.h> 39 #include <stdio.h> 40 41 #include <sys/vnode.h> 42 #include <vfs/tmpfs/tmpfs.h> 43 44 #include "fstat.h" 45 46 int 47 tmpfs_filestat(struct vnode *vp, struct filestat *fsp) 48 { 49 struct tmpfs_node ino; 50 struct mount mount_l; 51 52 if (!kread(VTOI(vp), &ino, sizeof(ino))) { 53 dprintf(stderr, "can't read struct tmpfs_node at %p for pid %d\n", 54 VTOI(vp), Pid); 55 return 0; 56 } 57 if (!kread(vp->v_mount, &mount_l, sizeof(struct mount))) { 58 dprintf(stderr, "can't read struct mount at %p for pid %d\n", 59 vp->v_mount, Pid); 60 return 0; 61 } 62 fsp->fsid = mount_l.mnt_stat.f_fsid.val[0]; 63 fsp->mode = ino.tn_mode | mtrans(ino.tn_type); 64 fsp->fileid = ino.tn_id; 65 fsp->size = ino.tn_size; 66 fsp->rdev = ino.tn_spec.tn_rdev; 67 return 1; 68 } 69