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 #include <sys/param.h> 33 #include <sys/stat.h> 34 #include <sys/time.h> 35 36 #include <kvm.h> 37 #include <stdio.h> 38 39 #define _KERNEL_STRUCTURES 40 #include <sys/vnode.h> 41 #include <sys/mount.h> 42 #include <vfs/hammer/hammer.h> 43 #undef _KERNEL_STRUCTURES 44 45 #include "fstat.h" 46 47 int 48 hammer_filestat(struct vnode *vp, struct filestat *fsp) 49 { 50 struct hammer_inode ino; 51 struct hammer_pseudofs_inmem pfsm; 52 53 if (!kread(VTOI(vp), &ino, sizeof(ino))) { 54 dprintf(stderr, "can't read hammer_inode at %p for pid %d\n", 55 (void *)VTOI(vp), Pid); 56 return 0; 57 } 58 59 if (!kread(ino.pfsm, &pfsm, sizeof(pfsm))) { 60 dprintf(stderr, "can't read hammer_pseudofs_inmem" 61 " at %p for pid %d\n", (void *)ino.pfsm, Pid); 62 return 0; 63 } 64 fsp->fsid = pfsm.fsid_udev ^ (u_int32_t)ino.obj_asof ^ 65 (u_int32_t)(ino.obj_asof >> 32); 66 fsp->mode = ino.ino_data.mode | mtrans(vp->v_type); 67 fsp->fileid = (long)ino.ino_leaf.base.obj_id; 68 fsp->size = ino.ino_data.size; 69 fsp->rdev = dev2udev(vp->v_rdev); 70 return 1; 71 } 72