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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/cred.h>
#include <sys/vfs.h>
#include <sys/vfs_opreg.h>
#include <sys/gfs.h>
#include <sys/vnode.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/sysmacros.h>
#include <fs/fs_subr.h>
#include <sys/contract.h>
#include <sys/contract_impl.h>
#include <sys/ctfs.h>
#include <sys/ctfs_impl.h>
#include <sys/file.h>
#include <sys/pathname.h>
/*
* Entries in a /system/contract/<type>/<ctid> directory.
*/
static gfs_dirent_t ctfs_ctls[] = {
{ "ctl", ctfs_create_ctlnode, GFS_CACHE_VNODE, },
{ "status", ctfs_create_statnode, GFS_CACHE_VNODE },
{ "events", ctfs_create_evnode },
{ NULL }
};
#define CTFS_NCTLS ((sizeof ctfs_ctls / sizeof (gfs_dirent_t)) - 1)
static ino64_t ctfs_cdir_do_inode(vnode_t *, int);
/*
* ctfs_create_cdirnode
*
* If necessary, creates a cdirnode for the specified contract and
* inserts it into the contract's list of vnodes. Returns either the
* existing vnode or the new one.
*/
vnode_t *
ctfs_create_cdirnode(vnode_t *pvp, contract_t *ct)
{
vnode_t *vp;
ctfs_cdirnode_t *cdir;
if ((vp = contract_vnode_get(ct, pvp->v_vfsp)) != NULL)
return (vp);
vp = gfs_dir_create(sizeof (ctfs_cdirnode_t), pvp, ctfs_ops_cdir,
ctfs_ctls, ctfs_cdir_do_inode, CTFS_NAME_MAX, NULL, NULL);
cdir = vp->v_data;
/*
* We must set the inode because this is called explicitly rather than
* through GFS callbacks.
*/
gfs_file_set_inode(vp, CTFS_INO_CT_DIR(ct->ct_id));
cdir->ctfs_cn_contract = ct;
contract_hold(ct);
contract_vnode_set(ct, &cdir->ctfs_cn_linkage, vp);
return (vp);
}
/*
* ctfs_cdir_getattr - VOP_GETATTR entry point
*/
/* ARGSUSED */
static int
ctfs_cdir_getattr(
vnode_t *vp,
vattr_t *vap,
int flags,
cred_t *cr,
caller_context_t *ct)
{
ctfs_cdirnode_t *cdirnode = vp->v_data;
vap->va_type = VDIR;
vap->va_mode = 0555;
vap->va_nlink = 2 + CTFS_NCTLS;
vap->va_size = vap->va_nlink;
vap->va_ctime = cdirnode->ctfs_cn_contract->ct_ctime;
mutex_enter(&cdirnode->ctfs_cn_contract->ct_events.ctq_lock);
vap->va_atime = vap->va_mtime =
cdirnode->ctfs_cn_contract->ct_events.ctq_atime;
mutex_exit(&cdirnode->ctfs_cn_contract->ct_events.ctq_lock);
ctfs_common_getattr(vp, vap);
return (0);
}
/*
* ctfs_cdir_do_inode - return inode number based on static index
*/
static ino64_t
ctfs_cdir_do_inode(vnode_t *vp, int index)
{
ctfs_cdirnode_t *cdirnode = vp->v_data;
return (CTFS_INO_CT_FILE(cdirnode->ctfs_cn_contract->ct_id, index));
}
/*
* ctfs_cdir_inactive - VOP_INACTIVE entry point
*/
/* ARGSUSED */
static void
ctfs_cdir_inactive(vnode_t *vp, cred_t *cr, caller_context_t *cct)
{
ctfs_cdirnode_t *cdirnode = vp->v_data;
contract_t *ct = cdirnode->ctfs_cn_contract;
mutex_enter(&ct->ct_lock);
if (gfs_dir_inactive(vp) == NULL) {
mutex_exit(&ct->ct_lock);
return;
}
list_remove(&ct->ct_vnodes, &cdirnode->ctfs_cn_linkage);
mutex_exit(&ct->ct_lock);
contract_rele(ct);
kmem_free(cdirnode, sizeof (ctfs_cdirnode_t));
}
const fs_operation_def_t ctfs_tops_cdir[] = {
{ VOPNAME_OPEN, { .vop_open = ctfs_open } },
{ VOPNAME_CLOSE, { .vop_close = ctfs_close } },
{ VOPNAME_IOCTL, { .error = fs_inval } },
{ VOPNAME_GETATTR, { .vop_getattr = ctfs_cdir_getattr } },
{ VOPNAME_ACCESS, { .vop_access = ctfs_access_dir } },
{ VOPNAME_READDIR, { .vop_readdir = gfs_vop_readdir } },
{ VOPNAME_LOOKUP, { .vop_lookup = gfs_vop_lookup } },
{ VOPNAME_SEEK, { .vop_seek = fs_seek } },
{ VOPNAME_INACTIVE, { .vop_inactive = ctfs_cdir_inactive } },
{ NULL, NULL }
};
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