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Restore routines for getting and listing extended attributes which

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were lost in the last merge.
This commit is contained in:
rodrigc 2006-06-11 00:55:32 +00:00
parent 3afdadc9af
commit a1c0f666fd
1 changed files with 124 additions and 0 deletions
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124
sys/gnu/fs/xfs/FreeBSD/xfs_vnops.c
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@ -37,6 +37,7 @@
#include <sys/dirent.h>
#include <sys/ioccom.h>
#include <sys/malloc.h>
#include <sys/extattr.h>
#include <vm/vm.h>
#include <vm/vm_extern.h>
@ -66,6 +67,7 @@
#include "xfs_ialloc_btree.h"
#include "xfs_btree.h"
#include "xfs_imap.h"
#include "xfs_attr.h"
#include "xfs_attr_sf.h"
#include "xfs_dir_sf.h"
#include "xfs_dir2_sf.h"
@ -92,9 +94,11 @@ static vop_close_t _xfs_close;
static vop_create_t _xfs_create;
static vop_fsync_t _xfs_fsync;
static vop_getattr_t _xfs_getattr;
static vop_getextattr_t _xfs_getextattr;
static vop_inactive_t _xfs_inactive;
static vop_ioctl_t _xfs_ioctl;
static vop_link_t _xfs_link;
static vop_listextattr_t _xfs_listextattr;
static vop_mkdir_t _xfs_mkdir;
static vop_mknod_t _xfs_mknod;
static vop_open_t _xfs_open;
@ -120,9 +124,11 @@ struct vop_vector xfs_vnops = {
.vop_create = _xfs_create,
.vop_fsync = _xfs_fsync,
.vop_getattr = _xfs_getattr,
.vop_getextattr = _xfs_getextattr,
.vop_inactive = _xfs_inactive,
.vop_ioctl = _xfs_ioctl,
.vop_link = _xfs_link,
.vop_listextattr = _xfs_listextattr,
.vop_lookup = vfs_cache_lookup,
.vop_mkdir = _xfs_mkdir,
.vop_mknod = _xfs_mknod,
@ -1463,3 +1469,121 @@ _xfsfifo_kqfilter(
error = _xfs_kqfilter(ap);
return (error);
}
static int
_xfs_getextattr(
struct vop_getextattr_args /* {
struct vnode *a_vp;
int a_attrnamespace;
const char *a_name;
struct uio *a_uio;
size_t *a_size;
struct ucred *a_cred;
struct thread *a_td;
} */ *ap)
{
int error;
char *value;
int size;
error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
ap->a_cred, ap->a_td, VREAD);
if (error)
return (error);
size = ATTR_MAX_VALUELEN;
value = (char *)kmem_zalloc(size, KM_SLEEP);
if (value == NULL)
return (ENOMEM);
XVOP_ATTR_GET(VPTOXFSVP(ap->a_vp), ap->a_name, value, &size, 1,
ap->a_cred, error);
if (ap->a_uio != NULL) {
if (ap->a_uio->uio_iov->iov_len < size)
error = ERANGE;
else
uiomove(value, size, ap->a_uio);
}
if (ap->a_size != NULL)
*ap->a_size = size;
kmem_free(value, ATTR_MAX_VALUELEN);
return (error);
}
static int
_xfs_listextattr(
struct vop_listextattr_args /* {
struct vnode *a_vp;
int a_attrnamespace;
struct uio *a_uio;
size_t *a_size;
struct ucred *a_cred;
struct thread *a_td;
} */ *ap)
{
int error;
char *buf = NULL;
int buf_len = 0;
attrlist_cursor_kern_t cursor = { 0 };
int i;
char name_len;
int attrnames_len = 0;
int xfs_flags = ATTR_KERNAMELS;
error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
ap->a_cred, ap->a_td, VREAD);
if (error)
return (error);
if (ap->a_attrnamespace & EXTATTR_NAMESPACE_USER)
xfs_flags |= ATTR_KERNORMALS;
if (ap->a_attrnamespace & EXTATTR_NAMESPACE_SYSTEM)
xfs_flags |= ATTR_KERNROOTLS;
if (ap->a_uio == NULL || ap->a_uio->uio_iov[0].iov_base == NULL) {
xfs_flags |= ATTR_KERNOVAL;
buf_len = 0;
} else {
buf = ap->a_uio->uio_iov[0].iov_base;
buf_len = ap->a_uio->uio_iov[0].iov_len;
}
XVOP_ATTR_LIST(VPTOXFSVP(ap->a_vp), buf, buf_len, xfs_flags,
&cursor, ap->a_cred, error);
if (error < 0) {
attrnames_len = -error;
error = 0;
}
if (buf == NULL)
goto done;
/*
* extattr_list expects a list of names. Each list
* entry consists of one byte for the name length, followed
* by the name (not null terminated)
*/
name_len=0;
for(i=attrnames_len-1; i > 0 ; --i) {
buf[i] = buf[i-1];
if (buf[i])
++name_len;
else {
buf[i] = name_len;
name_len = 0;
}
}
buf[0] = name_len;
if (ap->a_uio != NULL)
ap->a_uio->uio_resid -= attrnames_len;
done:
if (ap->a_size != NULL)
*ap->a_size = attrnames_len;
return (error);
}