xref: /dflybsd-src/usr.bin/fstat/hammer.c (revision 3909f1639734f7feb1b6a62e418458d1fa9de926)
15387fd3eSAntonio Huete Jimenez /*
25387fd3eSAntonio Huete Jimenez  * Copyright (c) 2013 The DragonFly Project.  All rights reserved.
35387fd3eSAntonio Huete Jimenez  *
45387fd3eSAntonio Huete Jimenez  * Redistribution and use in source and binary forms, with or without
55387fd3eSAntonio Huete Jimenez  * modification, are permitted provided that the following conditions
65387fd3eSAntonio Huete Jimenez  * are met:
75387fd3eSAntonio Huete Jimenez  *
85387fd3eSAntonio Huete Jimenez  * 1. Redistributions of source code must retain the above copyright
95387fd3eSAntonio Huete Jimenez  *    notice, this list of conditions and the following disclaimer.
105387fd3eSAntonio Huete Jimenez  * 2. Redistributions in binary form must reproduce the above copyright
115387fd3eSAntonio Huete Jimenez  *    notice, this list of conditions and the following disclaimer in
125387fd3eSAntonio Huete Jimenez  *    the documentation and/or other materials provided with the
135387fd3eSAntonio Huete Jimenez  *    distribution.
145387fd3eSAntonio Huete Jimenez  * 3. Neither the name of The DragonFly Project nor the names of its
155387fd3eSAntonio Huete Jimenez  *    contributors may be used to endorse or promote products derived
165387fd3eSAntonio Huete Jimenez  *    from this software without specific, prior written permission.
175387fd3eSAntonio Huete Jimenez  *
185387fd3eSAntonio Huete Jimenez  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
195387fd3eSAntonio Huete Jimenez  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
205387fd3eSAntonio Huete Jimenez  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
215387fd3eSAntonio Huete Jimenez  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
225387fd3eSAntonio Huete Jimenez  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
235387fd3eSAntonio Huete Jimenez  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
245387fd3eSAntonio Huete Jimenez  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
255387fd3eSAntonio Huete Jimenez  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
265387fd3eSAntonio Huete Jimenez  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
275387fd3eSAntonio Huete Jimenez  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
285387fd3eSAntonio Huete Jimenez  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
295387fd3eSAntonio Huete Jimenez  * SUCH DAMAGE.
305387fd3eSAntonio Huete Jimenez  */
315387fd3eSAntonio Huete Jimenez 
325387fd3eSAntonio Huete Jimenez #include <sys/param.h>
335387fd3eSAntonio Huete Jimenez #include <sys/stat.h>
345387fd3eSAntonio Huete Jimenez #include <sys/time.h>
355387fd3eSAntonio Huete Jimenez 
365387fd3eSAntonio Huete Jimenez #include <kvm.h>
375387fd3eSAntonio Huete Jimenez #include <stdio.h>
385387fd3eSAntonio Huete Jimenez 
395387fd3eSAntonio Huete Jimenez #define _KERNEL_STRUCTURES
405387fd3eSAntonio Huete Jimenez #include <sys/vnode.h>
415387fd3eSAntonio Huete Jimenez #include <sys/mount.h>
425387fd3eSAntonio Huete Jimenez #include <vfs/hammer/hammer.h>
435387fd3eSAntonio Huete Jimenez #undef _KERNEL_STRUCTURES
445387fd3eSAntonio Huete Jimenez 
455387fd3eSAntonio Huete Jimenez #include "fstat.h"
465387fd3eSAntonio Huete Jimenez 
475387fd3eSAntonio Huete Jimenez int
485387fd3eSAntonio Huete Jimenez hammer_filestat(struct vnode *vp, struct filestat *fsp)
495387fd3eSAntonio Huete Jimenez {
505387fd3eSAntonio Huete Jimenez 	struct hammer_inode ino;
515387fd3eSAntonio Huete Jimenez 	struct hammer_pseudofs_inmem pfsm;
525387fd3eSAntonio Huete Jimenez 
535387fd3eSAntonio Huete Jimenez 	if (!kread(VTOI(vp), &ino, sizeof(ino))) {
545387fd3eSAntonio Huete Jimenez 		dprintf(stderr, "can't read hammer_inode at %p for pid %d\n",
555387fd3eSAntonio Huete Jimenez 		    (void *)VTOI(vp), Pid);
565387fd3eSAntonio Huete Jimenez 		return 0;
575387fd3eSAntonio Huete Jimenez 	}
585387fd3eSAntonio Huete Jimenez 
595387fd3eSAntonio Huete Jimenez 	if (!kread(ino.pfsm, &pfsm, sizeof(pfsm))) {
605387fd3eSAntonio Huete Jimenez 		dprintf(stderr, "can't read hammer_pseudofs_inmem"
615387fd3eSAntonio Huete Jimenez 		    " at %p for pid %d\n", (void *)ino.pfsm, Pid);
625387fd3eSAntonio Huete Jimenez 		return 0;
635387fd3eSAntonio Huete Jimenez 	}
645387fd3eSAntonio Huete Jimenez 	fsp->fsid = pfsm.fsid_udev ^ (u_int32_t)ino.obj_asof ^
655387fd3eSAntonio Huete Jimenez 	    (u_int32_t)(ino.obj_asof >> 32);
66*3909f163SSascha Wildner 	fsp->mode = ino.ino_data.mode | mtrans(vp->v_type);
675387fd3eSAntonio Huete Jimenez 	fsp->fileid = (long)ino.ino_leaf.base.obj_id;
685387fd3eSAntonio Huete Jimenez 	fsp->size = ino.ino_data.size;
695387fd3eSAntonio Huete Jimenez 	fsp->rdev = dev2udev(vp->v_rdev);
705387fd3eSAntonio Huete Jimenez 	return 1;
715387fd3eSAntonio Huete Jimenez }
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