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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2016 Nexenta Systems, Inc. All rights reserved.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/t_lock.h>
#include <sys/errno.h>
#include <sys/cred.h>
#include <sys/user.h>
#include <sys/uio.h>
#include <sys/file.h>
#include <sys/pathname.h>
#include <sys/vfs.h>
#include <sys/vnode.h>
#include <sys/stat.h>
#include <sys/mode.h>
#include <sys/conf.h>
#include <sys/sysmacros.h>
#include <sys/cmn_err.h>
#include <sys/systm.h>
#include <sys/kmem.h>
#include <sys/debug.h>
#include <sys/acl.h>
#include <sys/nbmlock.h>
#include <sys/fcntl.h>
#include <sys/poll.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include "vncache.h"
#define VFTBITS(feature) ((feature) & 0xFFFFFFFFLL)
static uint64_t vfs_features = VFSFT_XVATTR;
vnode_t *rootdir = NULL; /* pointer to root inode vnode. */
static struct vfs fake_rootvfs;
static struct vfsops fake_vfsops;
struct vfs *rootvfs = NULL;
static struct vfssw fake_vfssw = {
.vsw_name = "fake" /* see smb_tree.c:smb_mtype[] */
};
int
fksmbsrv_vfs_init(void)
{
struct stat st;
int err, fd;
vnode_t *vp;
char *name = "/";
if (rootvfs == NULL) {
rootvfs = &fake_rootvfs;
rootvfs->vfs_mntpt = refstr_alloc(name);
rootvfs->vfs_fsid.val[0] = 1;
rootvfs->vfs_op = &fake_vfsops;
}
if (rootdir == NULL) {
if (lstat(name, &st) == -1)
return (errno);
fd = open(name, O_RDONLY, 0);
if (fd < 0) {
return (errno);
}
if (fstat(fd, &st) == -1) {
err = errno;
(void) close(fd);
return (err);
}
vp = vncache_enter(&st, NULL, "", fd);
/* extra hold for rootvp */
vn_hold(vp);
rootdir = vp;
/* VFS stuff in global zone struct. */
zone0.zone_rootvp = rootdir;
zone0.zone_rootpath = "/";
}
return (0);
}
/*
* Query a vfs for a feature.
* Returns 1 if feature is present, 0 if not
*/
/* ARGSUSED */
int
vfs_has_feature(vfs_t *vfsp, vfs_feature_t feature)
{
int ret = 0;
if (vfs_features & VFTBITS(feature))
ret = 1;
return (ret);
}
/* ARGSUSED */
struct vfs *
getvfs(fsid_t *fsid)
{
return (rootvfs);
}
vfsops_t *
vfs_getops(vfs_t *vfsp)
{
return (vfsp->vfs_op);
}
/* ARGSUSED */
struct vfssw *
vfs_getvfsswbyvfsops(vfsops_t *vfsops)
{
if (vfsops == &fake_vfsops)
return (&fake_vfssw);
return (NULL);
}
/* ARGSUSED */
void
vfs_unrefvfssw(struct vfssw *vswp)
{
}
/* ARGSUSED */
int
fsop_root(vfs_t *vfsp, vnode_t **vpp)
{
vnode_t *vp;
if ((vp = rootdir) == NULL)
return (ENXIO);
vn_hold(vp);
*vpp = vp;
return (0);
}
/* ARGSUSED */
int
fsop_statfs(vfs_t *vfsp, statvfs64_t *sp)
{
vnode_t *vp;
int rc;
if ((vp = rootdir) == NULL)
return (ENXIO);
rc = fstatvfs64(vp->v_fd, sp);
if (rc == -1) {
rc = errno;
}
return (rc);
}
refstr_t *
vfs_getmntpoint(const struct vfs *vfsp)
{
refstr_t *mntpt;
mntpt = vfsp->vfs_mntpt;
refstr_hold(mntpt);
return (mntpt);
}
/* ARGSUSED */
void
vfs_hold(vfs_t *vfsp)
{
}
/* ARGSUSED */
void
vfs_rele(vfs_t *vfsp)
{
}
/* ARGSUSED */
int
vfs_lock(vfs_t *vfsp)
{
return (0);
}
/* ARGSUSED */
int
vfs_rlock(vfs_t *vfsp)
{
return (0);
}
/* ARGSUSED */
void
vfs_lock_wait(vfs_t *vfsp)
{
}
/* ARGSUSED */
void
vfs_rlock_wait(vfs_t *vfsp)
{
}
/* ARGSUSED */
void
vfs_unlock(vfs_t *vfsp)
{
}
static u_longlong_t fs_caller_id;
u_longlong_t
fs_new_caller_id(void)
{
return (++fs_caller_id);
}
static sysid_t lm_sysid;
sysid_t
lm_alloc_sysidt(void)
{
return (++lm_sysid);
}
/* ARGSUSED */
void
lm_free_sysidt(sysid_t id)
{
}
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