764 lines
18 KiB
C
764 lines
18 KiB
C
/* $NetBSD: darwin_attr.c,v 1.24 2008/04/28 20:23:41 martin Exp $ */
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/*-
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* Copyright (c) 2003, 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: darwin_attr.c,v 1.24 2008/04/28 20:23:41 martin Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/proc.h>
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#include <sys/mount.h>
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#include <sys/lwp.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/namei.h>
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#include <sys/vnode.h>
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#include <sys/malloc.h>
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#include <sys/stat.h>
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#include <sys/syscallargs.h>
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#include <sys/vfs_syscalls.h>
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#include <sys/kauth.h>
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#include <compat/sys/signal.h>
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#include <compat/sys/mount.h>
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#include <compat/common/compat_util.h>
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#include <compat/mach/mach_types.h>
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#include <compat/mach/mach_vm.h>
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#include <compat/darwin/darwin_audit.h>
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#include <compat/darwin/darwin_attr.h>
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#include <compat/darwin/darwin_syscallargs.h>
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#define DARWIN_ATTR_MAXBUFLEN 4096
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static int darwin_attr_append(const char *, size_t, char **, size_t *);
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#define ATTR_APPEND(x, bp, len) \
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darwin_attr_append((char *)&(x), sizeof(x), &(bp), &(len))
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static int
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darwin_attr_append(const char *x, size_t size, char **bp, size_t *len)
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{
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if (*len < size)
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return -1;
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(void)memcpy(*bp, x, size);
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*bp += size;
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*len -= size;
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return 0;
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}
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int
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darwin_sys_getattrlist(struct lwp *l, const struct darwin_sys_getattrlist_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(struct darwin_attrlist *) alist;
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syscallarg(void *) attributes;
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syscallarg(size_t) buflen;
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syscallarg(unsigned long) options;
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} */
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struct darwin_attrlist kalist;
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char *tbuf;
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char *bp;
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size_t len;
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size_t shift = 0;
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int null = 0;
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int error = 0;
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int follow = NOFOLLOW;
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u_long *whole_len_p = NULL;
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darwin_attrreference_t *cmn_name_p = NULL;
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darwin_attrreference_t *vol_mountpoint_p = NULL;
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darwin_attrreference_t *vol_name_p = NULL;
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darwin_attrreference_t *vol_mounteddevice_p = NULL;
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struct stat st;
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struct statvfs *f;
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struct nameidata nd;
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struct vnode *vp;
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kauth_cred_t cred;
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if ((error = copyin(SCARG(uap, alist), &kalist, sizeof(kalist))) != 0)
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return error;
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if (kalist.bitmapcount != DARWIN_ATTR_BIT_MAP_COUNT)
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return EINVAL;
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len = SCARG(uap, buflen);
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if (len > DARWIN_ATTR_MAXBUFLEN)
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return E2BIG;
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if ((SCARG(uap, options) & DARWIN_FSOPT_NOFOLLOW) != 0)
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follow = FOLLOW;
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#ifdef DEBUG_DARWIN
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printf("getattrlist: %08x %08x %08x %08x %08x\n",
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kalist.commonattr, kalist.volattr, kalist.dirattr,
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kalist.fileattr, kalist.forkattr);
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#endif
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/* Allocate buffers now... */
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f = STATVFSBUF_GET();
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tbuf = malloc(len, M_TEMP, M_WAITOK);
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/* We are going to need the vnode itself... */
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cred = kauth_cred_dup(l->l_cred);
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kauth_cred_seteuid(cred, kauth_cred_getuid(l->l_cred));
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kauth_cred_setegid(cred, kauth_cred_getgid(l->l_cred));
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NDINIT(&nd, LOOKUP, follow | LOCKLEAF | TRYEMULROOT, UIO_USERSPACE,
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SCARG(uap, path));
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if ((error = namei(&nd)) != 0)
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goto out2;
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vp = nd.ni_vp;
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if ((error = VOP_ACCESS(vp, VREAD | VEXEC, cred)) != 0)
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goto out3;
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/* Get the informations for path: file related info */
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error = vn_stat(vp, &st);
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if (error != 0)
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goto out3;
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/* filesystem related info */
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error = dostatvfs(vp->v_mount, f, l, 0, 1);
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if (error != 0)
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goto out3;
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/*
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* Prepare the buffer
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*/
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bp = tbuf;
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/*
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* Buffer whole length: is always present
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*/
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if (1) {
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u_long whole_len;
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whole_len = 0;
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whole_len_p = (u_long *)bp;
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if (ATTR_APPEND(whole_len, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_NAME) {
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darwin_attrreference_t dar;
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cmn_name_p = (darwin_attrreference_t *)bp;
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if (ATTR_APPEND(dar, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_DEVID) {
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dev_t device;
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device = st.st_dev;
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if (ATTR_APPEND(device, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_FSID) {
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fsid_t fs;
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fs = f->f_fsidx;
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if (ATTR_APPEND(fs, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_OBJTYPE) {
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darwin_fsobj_type_t dft;
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dft = vp->v_type;
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if (ATTR_APPEND(dft, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_OBJTAG) {
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darwin_fsobj_tag_t dft;
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dft = vp->v_tag;
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if (ATTR_APPEND(dft, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_OBJID) {
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darwin_fsobj_id_t dfi;
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dfi.fid_objno = st.st_ino;
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dfi.fid_generation = 0; /* XXX root can read real value */
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if (ATTR_APPEND(dfi, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_OBJPERMANENTID) {
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darwin_fsobj_id_t dfi;
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dfi.fid_objno = st.st_ino; /* This is not really persistent */
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dfi.fid_generation = 0; /* XXX root can read real value */
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if (ATTR_APPEND(dfi, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_PAROBJID) {
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darwin_fsobj_id_t dfi;
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dfi.fid_objno = 0; /* XXX do me */
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dfi.fid_generation = 0; /* XXX root can read real value */
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if (ATTR_APPEND(dfi, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_SCRIPT) {
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darwin_text_encoding_t dte;
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dte = DARWIN_US_ASCII;
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if (ATTR_APPEND(dte, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_CRTIME) {
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if (ATTR_APPEND(st.st_ctimespec, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_MODTIME) {
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if (ATTR_APPEND(st.st_mtimespec, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_CHGTIME) {
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if (ATTR_APPEND(st.st_ctimespec, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_ACCTIME) {
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if (ATTR_APPEND(st.st_atimespec, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_BKUPTIME) {
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struct timespec ts;
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/* XXX no way I can do that one */
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(void)bzero(&ts, sizeof(ts));
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if (ATTR_APPEND(ts, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_FNDRINFO) { /* XXX */
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char data[32];
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(void)bzero(&data, sizeof(data));
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if (ATTR_APPEND(data, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_OWNERID) {
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uid_t uid;
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uid = st.st_uid;
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if (ATTR_APPEND(uid, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_GRPID) {
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gid_t gid;
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gid = st.st_gid;
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if (ATTR_APPEND(gid, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_ACCESSMASK) {
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mode_t mode;
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mode = st.st_mode;
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if (ATTR_APPEND(mode, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_NAMEDATTRCOUNT) {
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/* Data is unsigned long. Unsupported in Darwin */
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error = EINVAL;
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_NAMEDATTRLIST) {
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/* Data is darwin_attrreference_t. Unsupported in Darwin */
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error = EINVAL;
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_FLAGS) {
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unsigned long flags;
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flags = st.st_flags; /* XXX need convertion */
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if (ATTR_APPEND(flags, bp, len) != 0)
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goto out3;
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}
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if (kalist.commonattr & DARWIN_ATTR_CMN_USERACCESS) {
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unsigned long ua = 0;
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struct sys_access_args cup3;
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register_t rv;
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SCARG(&cup3, path) = SCARG(uap, path);
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SCARG(&cup3, flags) = R_OK;
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if (sys_access(l, &cup3, &rv) == 0)
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ua |= R_OK;
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SCARG(&cup3, flags) = W_OK;
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if (sys_access(l, &cup3, &rv) == 0)
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ua |= W_OK;
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SCARG(&cup3, flags) = X_OK;
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if (sys_access(l, &cup3, &rv) == 0)
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ua |= X_OK;
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if (ATTR_APPEND(ua, bp, len) != 0)
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goto out3;
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}
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if (kalist.volattr & DARWIN_ATTR_VOL_INFO) {
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/* Nothing added, just skip */
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}
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if (kalist.volattr & DARWIN_ATTR_VOL_FSTYPE) {
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unsigned long fstype;
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/* We'd need to convert f_fstypename - done for COMPAT_09 */
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fstype = 0; /* f->f_type; */
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if (ATTR_APPEND(fstype, bp, len) != 0)
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goto out3;
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}
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if (kalist.volattr & DARWIN_ATTR_VOL_SIGNATURE) {
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unsigned long sign;
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/*
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* XXX Volume signature, used to distinguish
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* between volumes inside the same filesystem.
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*/
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sign = f->f_fsidx.__fsid_val[0];
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if (ATTR_APPEND(sign, bp, len) != 0)
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goto out3;
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}
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if (kalist.volattr & DARWIN_ATTR_VOL_SIZE) {
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off_t size;
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size = f->f_blocks * f->f_bsize;
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if (ATTR_APPEND(size, bp, len) != 0)
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goto out3;
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}
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if (kalist.volattr & DARWIN_ATTR_VOL_SPACEFREE) {
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off_t ofree;
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ofree = f->f_bfree * f->f_bsize;
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if (ATTR_APPEND(ofree, bp, len) != 0)
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goto out3;
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}
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if (kalist.volattr & DARWIN_ATTR_VOL_SPACEAVAIL) {
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off_t avail;
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avail = f->f_bavail * f->f_bsize;
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if (ATTR_APPEND(avail, bp, len) != 0)
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goto out3;
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}
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if (kalist.volattr & DARWIN_ATTR_VOL_MINALLOCATION) {
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off_t omin;
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omin = f->f_bsize; /* XXX probably wrong */
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if (ATTR_APPEND(omin, bp, len) != 0)
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goto out3;
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}
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|
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if (kalist.volattr & DARWIN_ATTR_VOL_ALLOCATIONCLUMP) {
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off_t clump;
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clump = f->f_bsize; /* XXX proably wrong */
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if (ATTR_APPEND(clump, bp, len) != 0)
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goto out3;
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}
|
|
|
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if (kalist.volattr & DARWIN_ATTR_VOL_IOBLOCKSIZE) {
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unsigned long size;
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size = f->f_iosize;
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if (ATTR_APPEND(size, bp, len) != 0)
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goto out3;
|
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}
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|
|
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if (kalist.volattr & DARWIN_ATTR_VOL_OBJCOUNT) {
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unsigned long cnt;
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cnt = f->f_files;
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if (ATTR_APPEND(cnt, bp, len) != 0)
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goto out3;
|
|
}
|
|
|
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if (kalist.volattr & DARWIN_ATTR_VOL_FILECOUNT) {
|
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unsigned long cnt;
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|
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cnt = f->f_files; /* XXX only files */
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if (ATTR_APPEND(cnt, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_DIRCOUNT) {
|
|
unsigned long cnt;
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|
|
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cnt = 0; /* XXX wrong, of course */
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if (ATTR_APPEND(cnt, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_MAXOBJCOUNT) {
|
|
unsigned long cnt;
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|
|
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cnt = f->f_files + f->f_ffree;
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if (ATTR_APPEND(cnt, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_MOUNTPOINT) {
|
|
darwin_attrreference_t dar;
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|
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vol_mountpoint_p = (darwin_attrreference_t *)bp;
|
|
if (ATTR_APPEND(dar, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_NAME) {
|
|
darwin_attrreference_t dar;
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|
|
vol_name_p = (darwin_attrreference_t *)bp;
|
|
if (ATTR_APPEND(dar, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_MOUNTFLAGS) {
|
|
unsigned long flags;
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|
|
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flags = f->f_flag; /* XXX need convertion? */
|
|
if (ATTR_APPEND(flags, bp, len) != 0)
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|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_MOUNTEDDEVICE) {
|
|
darwin_attrreference_t dar;
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|
|
|
vol_mounteddevice_p = (darwin_attrreference_t *)bp;
|
|
if (ATTR_APPEND(dar, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_ENCODINGSUSED) {
|
|
unsigned long long data;
|
|
|
|
/*
|
|
* XXX bitmap of encoding used in this volume
|
|
*/
|
|
(void)bzero(&data, sizeof(data));
|
|
if (ATTR_APPEND(data, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_CAPABILITIES) { /* XXX */
|
|
darwin_vol_capabilities_attr_t data;
|
|
|
|
(void)bzero(&data, sizeof(data));
|
|
if (ATTR_APPEND(data, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.volattr & DARWIN_ATTR_VOL_ATTRIBUTES) { /* XXX */
|
|
darwin_vol_attributes_attr_t data;
|
|
|
|
(void)bzero(&data, sizeof(data));
|
|
if (ATTR_APPEND(data, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.dirattr & DARWIN_ATTR_DIR_LINKCOUNT) {
|
|
unsigned long cnt;
|
|
|
|
cnt = st.st_nlink;
|
|
if (ATTR_APPEND(cnt, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.dirattr & DARWIN_ATTR_DIR_ENTRYCOUNT) { /* XXX */
|
|
unsigned long data;
|
|
|
|
(void)bzero(&data, sizeof(data));
|
|
if (ATTR_APPEND(data, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.dirattr & DARWIN_ATTR_DIR_MOUNTSTATUS) { /* XXX */
|
|
unsigned long data;
|
|
|
|
(void)bzero(&data, sizeof(data));
|
|
if (ATTR_APPEND(data, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_LINKCOUNT) {
|
|
unsigned long cnt;
|
|
|
|
cnt = st.st_nlink;
|
|
if (ATTR_APPEND(cnt, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_TOTALSIZE) {
|
|
off_t size;
|
|
|
|
size = st.st_size;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_ALLOCSIZE) {
|
|
off_t size;
|
|
|
|
size = st.st_blocks * f->f_bsize;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_IOBLOCKSIZE) {
|
|
unsigned long size;
|
|
|
|
size = st.st_blksize;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_CLUMPSIZE) {
|
|
unsigned long size;
|
|
|
|
size = st.st_blksize; /* XXX probably wrong */
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_DEVTYPE) {
|
|
unsigned long type;
|
|
|
|
type = st.st_rdev;
|
|
if (ATTR_APPEND(type, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_FILETYPE) {
|
|
unsigned long data;
|
|
|
|
/* Reserved, returns 0 */
|
|
(void)bzero(&data, sizeof(data));
|
|
if (ATTR_APPEND(data, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_FORKCOUNT) { /* XXX */
|
|
unsigned long cnt;
|
|
|
|
cnt = 1; /* Only one fork, of course */
|
|
if (ATTR_APPEND(cnt, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_FORKLIST) {
|
|
/* Unsupported in Darwin */
|
|
error = EINVAL;
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_DATALENGTH) { /* All forks */
|
|
off_t size;
|
|
|
|
size = st.st_size;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_DATAALLOCSIZE) { /* All forks */
|
|
off_t size;
|
|
|
|
size = st.st_blocks * f->f_bsize;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_DATAEXTENTS) {
|
|
darwin_extentrecord data;
|
|
|
|
/* Obsolete in Darwin */
|
|
(void)bzero(&data, sizeof(data));
|
|
if (ATTR_APPEND(data, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_RSRCLENGTH) {
|
|
off_t size;
|
|
|
|
size = 0;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_RSRCALLOCSIZE) {
|
|
off_t size;
|
|
|
|
size = 0;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.fileattr & DARWIN_ATTR_FILE_RSRCEXTENTS) {
|
|
darwin_extentrecord data;
|
|
|
|
/* Obsolete in Darwin */
|
|
(void)bzero(&data, sizeof(data));
|
|
if (ATTR_APPEND(data, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.forkattr & DARWIN_ATTR_FORK_TOTALSIZE) {
|
|
off_t size;
|
|
|
|
size = st.st_size;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (kalist.forkattr & DARWIN_ATTR_FORK_ALLOCSIZE) {
|
|
off_t size;
|
|
|
|
size = st.st_blocks * f->f_bsize;
|
|
if (ATTR_APPEND(size, bp, len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
/*
|
|
* Now the variable length fields
|
|
*/
|
|
|
|
if (cmn_name_p) { /* DARWIN_ATTR_CMN_NAME */
|
|
cmn_name_p->attr_dataoffset = (u_long)bp - (u_long)cmn_name_p;
|
|
cmn_name_p->attr_length = nd.ni_cnd.cn_namelen;
|
|
if (darwin_attr_append(nd.ni_cnd.cn_nameptr,
|
|
cmn_name_p->attr_length, &bp, &len) != 0)
|
|
goto out3;
|
|
|
|
/* word alignement */
|
|
shift = (((u_long)bp & ~0x3UL) + 4) - (u_long)bp;
|
|
if (darwin_attr_append((char *)null, shift, &bp, &len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (vol_mountpoint_p) { /* DARWIN_ATTR_VOL_MOUNTPOINT */
|
|
vol_mountpoint_p->attr_dataoffset =
|
|
(u_long)bp - (u_long)vol_mountpoint_p;
|
|
vol_mountpoint_p->attr_length = strlen(f->f_mntonname);
|
|
if (darwin_attr_append(f->f_mntonname,
|
|
vol_mountpoint_p->attr_length, &bp, &len) != 0)
|
|
goto out3;
|
|
|
|
/* word alignement */
|
|
shift = (((u_long)bp & ~0x3UL) + 4) - (u_long)bp;
|
|
if (darwin_attr_append((char *)null, shift, &bp, &len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (vol_mounteddevice_p) { /* DARWIN_ATTR_VOL_MOUNTEDDEVICE */
|
|
vol_mounteddevice_p->attr_dataoffset =
|
|
(u_long)bp - (u_long)vol_mounteddevice_p;
|
|
vol_mounteddevice_p->attr_length = strlen(f->f_mntfromname);
|
|
if (darwin_attr_append(f->f_mntfromname,
|
|
vol_mounteddevice_p->attr_length, &bp, &len) != 0)
|
|
goto out3;
|
|
|
|
/* word alignement */
|
|
shift = (((u_long)bp & ~0x3UL) + 4) - (u_long)bp;
|
|
if (darwin_attr_append((char *)null, shift, &bp, &len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
if (vol_name_p) { /* DARWIN_ATTR_VOL_NAME */
|
|
char name[] = "Volume"; /* XXX We have no volume names... */
|
|
size_t namelen = strlen(name);
|
|
|
|
vol_name_p->attr_dataoffset = (u_long)bp - (u_long)vol_name_p;
|
|
vol_name_p->attr_length = namelen;
|
|
if (darwin_attr_append(name, namelen, &bp, &len) != 0)
|
|
goto out3;
|
|
|
|
/* word alignement */
|
|
shift = (((u_long)bp & ~0x3UL) + 4) - (u_long)bp;
|
|
if (darwin_attr_append((char *)null, shift, &bp, &len) != 0)
|
|
goto out3;
|
|
}
|
|
|
|
/* And, finnally, the whole buffer length */
|
|
if (whole_len_p) {
|
|
*whole_len_p = SCARG(uap, buflen) - len;
|
|
}
|
|
|
|
/*
|
|
* We are done! Copyout the stuff and get away
|
|
*/
|
|
if (error == 0)
|
|
error = copyout(tbuf, SCARG(uap, attributes), *whole_len_p);
|
|
out3:
|
|
vput(vp);
|
|
out2:
|
|
kauth_cred_free(cred);
|
|
free(tbuf, M_TEMP);
|
|
|
|
STATVFSBUF_PUT(f);
|
|
return error;
|
|
}
|