Date: Tue, 9 Jun 2009 21:17:57 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r193858 - in stable/7/usr.bin/fstat: . zfs Message-ID: <200906092117.n59LHvPm084057@svn.freebsd.org>
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Author: kmacy Date: Tue Jun 9 21:17:57 2009 New Revision: 193858 URL: http://svn.freebsd.org/changeset/base/193858 Log: MFC fstat support bits for ZFS Submitted by: Alexander Nedotsukov Added: stable/7/usr.bin/fstat/zfs/ stable/7/usr.bin/fstat/zfs.c (contents, props changed) stable/7/usr.bin/fstat/zfs/Makefile (contents, props changed) Modified: stable/7/usr.bin/fstat/Makefile stable/7/usr.bin/fstat/fstat.c stable/7/usr.bin/fstat/fstat.h Modified: stable/7/usr.bin/fstat/Makefile ============================================================================== --- stable/7/usr.bin/fstat/Makefile Tue Jun 9 20:29:47 2009 (r193857) +++ stable/7/usr.bin/fstat/Makefile Tue Jun 9 21:17:57 2009 (r193858) @@ -1,6 +1,8 @@ # @(#)Makefile 8.1 (Berkeley) 6/6/93 # $FreeBSD$ +.include <bsd.own.mk> + PROG= fstat SRCS= cd9660.c fstat.c msdosfs.c DPADD= ${LIBKVM} @@ -11,4 +13,13 @@ WARNS?= 6 CFLAGS+=-D_KVM_VNODE +# XXX This is a hack. +.if ${MK_CDDL} != "no" +CFLAGS+= -DZFS +OBJS+= zfs/zfs.o +SUBDIR= zfs +zfs/zfs.o: .PHONY + @cd ${.CURDIR}/zfs && ${MAKE} zfs.o +.endif + .include <bsd.prog.mk> Modified: stable/7/usr.bin/fstat/fstat.c ============================================================================== --- stable/7/usr.bin/fstat/fstat.c Tue Jun 9 20:29:47 2009 (r193857) +++ stable/7/usr.bin/fstat/fstat.c Tue Jun 9 21:17:57 2009 (r193858) @@ -525,6 +525,11 @@ vtrans(struct vnode *vp, int i, int flag } else if (!strcmp("isofs", tagstr)) { if (!isofs_filestat(&vn, &fst)) badtype = "error"; +#ifdef ZFS + } else if (!strcmp("zfs", tagstr)) { + if (!zfs_filestat(&vn, &fst)) + badtype = "error"; +#endif } else { static char unknown[32]; snprintf(unknown, sizeof unknown, "?(%s)", tagstr); @@ -939,6 +944,20 @@ getfname(const char *filename) return(1); } +#ifdef ZFS +void * +getvnodedata(struct vnode *vp) +{ + return (vp->v_data); +} + +struct mount * +getvnodemount(struct vnode *vp) +{ + return (vp->v_mount); +} +#endif + void usage(void) { Modified: stable/7/usr.bin/fstat/fstat.h ============================================================================== --- stable/7/usr.bin/fstat/fstat.h Tue Jun 9 20:29:47 2009 (r193857) +++ stable/7/usr.bin/fstat/fstat.h Tue Jun 9 21:17:57 2009 (r193858) @@ -71,4 +71,10 @@ dev_t dev2udev(struct cdev *dev); int isofs_filestat(struct vnode *vp, struct filestat *fsp); int msdosfs_filestat(struct vnode *vp, struct filestat *fsp); +#ifdef ZFS +int zfs_filestat(struct vnode *vp, struct filestat *fsp); +void *getvnodedata(struct vnode *vp); +struct mount *getvnodemount(struct vnode *vp); +#endif + #endif /* __FSTAT_H__ */ Added: stable/7/usr.bin/fstat/zfs.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ stable/7/usr.bin/fstat/zfs.c Tue Jun 9 21:17:57 2009 (r193858) @@ -0,0 +1,135 @@ +/*- + * Copyright (c) 2007 Ulf Lilleengen + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#define _KERNEL +#include <sys/mount.h> +#include <sys/taskqueue.h> +#undef _KERNEL +#include <sys/sysctl.h> + +#undef lbolt +#undef lbolt64 +#undef gethrestime_sec +#include <sys/zfs_context.h> +#include <sys/spa.h> +#include <sys/spa_impl.h> +#include <sys/dmu.h> +#include <sys/zap.h> +#include <sys/fs/zfs.h> +#include <sys/zfs_znode.h> + +#include <err.h> +#include <kvm.h> +#include <stdio.h> +#include <stdlib.h> + +#define ZFS +#undef dprintf +#include <fstat.h> + +/* + * Offset calculations that are used to get data from znode without having the + * definition. + */ +#define LOCATION_ZID (2 * sizeof(void *)) +#define LOCATION_ZPHYS(zsize) ((zsize) - (2 * sizeof(void *)) - sizeof(struct task)) + +int +zfs_filestat(struct vnode *vp, struct filestat *fsp) +{ + + znode_phys_t zphys; + struct mount mount, *mountptr; + uint64_t *zid; + void *znodeptr, *vnodeptr; + char *dataptr; + void *zphys_addr; + size_t len; + int size; + + len = sizeof(size); + if (sysctlbyname("debug.sizeof.znode", &size, &len, NULL, 0) == -1) { + dprintf(stderr, "error getting sysctl\n"); + return (0); + } + znodeptr = malloc(size); + if (znodeptr == NULL) { + dprintf(stderr, "error allocating memory for znode storage\n"); + return (0); + } + + /* Since we have problems including vnode.h, we'll use the wrappers. */ + vnodeptr = getvnodedata(vp); + if (!KVM_READ(vnodeptr, znodeptr, (size_t)size)) { + dprintf(stderr, "can't read znode at %p for pid %d\n", + (void *)vnodeptr, Pid); + goto bad; + } + + /* + * z_id field is stored in the third pointer. We therefore skip the two + * first bytes. + * + * Pointer to the z_phys structure is the next last pointer. Therefore + * go back two bytes from the end. + */ + dataptr = znodeptr; + zid = (uint64_t *)(dataptr + LOCATION_ZID); + zphys_addr = *(void **)(dataptr + LOCATION_ZPHYS(size)); + + if (!KVM_READ(zphys_addr, &zphys, sizeof(zphys))) { + dprintf(stderr, "can't read znode_phys at %p for pid %d\n", + zphys_addr, Pid); + goto bad; + } + + /* Get the mount pointer, and read from the address. */ + mountptr = getvnodemount(vp); + if (!KVM_READ(mountptr, &mount, sizeof(mount))) { + dprintf(stderr, "can't read mount at %p for pid %d\n", + (void *)mountptr, Pid); + goto bad; + } + + fsp->fsid = (long)mount.mnt_stat.f_fsid.val[0]; + fsp->fileid = *zid; + /* + * XXX: Shows up wrong in output, but UFS has this error too. Could + * be that we're casting mode-variables from 64-bit to 8-bit or simply + * error in the mode-to-string function. + */ + fsp->mode = (mode_t)zphys.zp_mode; + fsp->size = (u_long)zphys.zp_size; + fsp->rdev = (dev_t)zphys.zp_rdev; + free(znodeptr); + return (1); +bad: + free(znodeptr); + return (0); +} Added: stable/7/usr.bin/fstat/zfs/Makefile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ stable/7/usr.bin/fstat/zfs/Makefile Tue Jun 9 21:17:57 2009 (r193858) @@ -0,0 +1,23 @@ +# $FreeBSD$ + +.PATH: ${.CURDIR}/.. + +SRCS= zfs.c +OBJS= zfs.o +WARNS?= 1 + +CFLAGS+= -I${.CURDIR}/../../../sys/cddl/compat/opensolaris +CFLAGS+= -I${.CURDIR}/../../../cddl/compat/opensolaris/include +CFLAGS+= -I${.CURDIR}/../../../cddl/compat/opensolaris/lib/libumem +CFLAGS+= -I${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libzpool/common +CFLAGS+= -I${.CURDIR}/../../../sys/cddl/contrib/opensolaris/uts/common/fs/zfs +CFLAGS+= -I${.CURDIR}/../../../sys/cddl/contrib/opensolaris/uts/common +CFLAGS+= -I${.CURDIR}/../../../sys/cddl/contrib/opensolaris/uts/common/sys +CFLAGS+= -I${.CURDIR}/../../../cddl/contrib/opensolaris/head +CFLAGS+= -I${.CURDIR}/.. +CFLAGS+= -DNEED_SOLARIS_BOOLEAN + +all: ${OBJS} +CLEANFILES= ${OBJS} + +.include <bsd.lib.mk>
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