2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
5 * Copyright (c) 1988, 1993
6 * The Regents of the University of California. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include <sys/param.h>
43 #include <sys/vnode.h>
47 #include <sys/mount.h>
48 #include <ufs/ufs/quota.h>
49 #include <ufs/ufs/inode.h>
50 #include <ufs/ufs/extattr.h>
51 #include <ufs/ufs/ufsmount.h>
52 #include <fs/devfs/devfs.h>
53 #include <fs/devfs/devfs_int.h>
55 #include <nfs/nfsproto.h>
56 #include <nfsclient/nfs.h>
57 #include <nfsclient/nfsnode.h>
65 #include <libprocstat.h>
66 #include "common_kvm.h"
69 kvm_read_all(kvm_t *kd, unsigned long addr, void *buf, size_t nbytes)
73 if (nbytes >= SSIZE_MAX)
75 error = kvm_read(kd, addr, buf, nbytes);
76 return (error == (ssize_t)(nbytes));
80 kdevtoname(kvm_t *kd, struct cdev *dev, char *buf)
85 if (!kvm_read_all(kd, (unsigned long)dev, &si, sizeof(si)))
87 strlcpy(buf, si.si_name, SPECNAMELEN + 1);
92 ufs_filestat(kvm_t *kd, struct vnode *vp, struct vnstat *vn)
97 if (!kvm_read_all(kd, (unsigned long)VTOI(vp), &inode, sizeof(inode))) {
98 warnx("can't read inode at %p", (void *)VTOI(vp));
101 if (!kvm_read_all(kd, (unsigned long)inode.i_ump, &um, sizeof(um))) {
102 warnx("can't read ufsmount at %p", (void *)inode.i_ump);
106 * The st_dev from stat(2) is a dev_t. These kernel structures
107 * contain cdev pointers. We need to convert to dev_t to make
110 vn->vn_fsid = dev2udev(kd, um.um_dev);
111 vn->vn_fileid = inode.i_number;
112 vn->vn_mode = (mode_t)inode.i_mode;
113 vn->vn_size = inode.i_size;
118 devfs_filestat(kvm_t *kd, struct vnode *vp, struct vnstat *vn)
120 struct devfs_dirent devfs_dirent;
123 if (!kvm_read_all(kd, (unsigned long)getvnodedata(vp), &devfs_dirent,
124 sizeof(devfs_dirent))) {
125 warnx("can't read devfs_dirent at %p",
129 if (!kvm_read_all(kd, (unsigned long)getvnodemount(vp), &mount,
131 warnx("can't read mount at %p",
132 (void *)getvnodemount(vp));
135 vn->vn_fsid = mount.mnt_stat.f_fsid.val[0];
136 vn->vn_fileid = devfs_dirent.de_inode;
137 vn->vn_mode = (devfs_dirent.de_mode & ~S_IFMT) | S_IFCHR;
143 nfs_filestat(kvm_t *kd, struct vnode *vp, struct vnstat *vn)
145 struct nfsnode nfsnode;
148 if (!kvm_read_all(kd, (unsigned long)VTONFS(vp), &nfsnode,
150 warnx("can't read nfsnode at %p",
154 vn->vn_fsid = nfsnode.n_vattr.va_fsid;
155 vn->vn_fileid = nfsnode.n_vattr.va_fileid;
156 vn->vn_size = nfsnode.n_size;
157 mode = (mode_t)nfsnode.n_vattr.va_mode;
158 switch (vp->v_type) {
188 * Read the cdev structure in the kernel in order to work out the
192 dev2udev(kvm_t *kd, struct cdev *dev)
194 struct cdev_priv priv;
197 if (kvm_read_all(kd, (unsigned long)cdev2priv(dev), &priv,
199 return ((dev_t)priv.cdp_inode);
201 warnx("can't convert cdev *%p to a dev_t\n", dev);
207 getvnodedata(struct vnode *vp)
213 getvnodemount(struct vnode *vp)
215 return (vp->v_mount);