17c478bdstevel@tonic-gate/*
27c478bdstevel@tonic-gate * CDDL HEADER START
37c478bdstevel@tonic-gate *
47c478bdstevel@tonic-gate * The contents of this file are subject to the terms of the
5aa59c4crsb * Common Development and Distribution License (the "License").
6aa59c4crsb * You may not use this file except in compliance with the License.
77c478bdstevel@tonic-gate *
87c478bdstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bdstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bdstevel@tonic-gate * See the License for the specific language governing permissions
117c478bdstevel@tonic-gate * and limitations under the License.
127c478bdstevel@tonic-gate *
137c478bdstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bdstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bdstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bdstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bdstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bdstevel@tonic-gate *
197c478bdstevel@tonic-gate * CDDL HEADER END
207c478bdstevel@tonic-gate */
217c478bdstevel@tonic-gate/*
22aa59c4crsb * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
237c478bdstevel@tonic-gate * Use is subject to license terms.
247c478bdstevel@tonic-gate */
257c478bdstevel@tonic-gate
267c478bdstevel@tonic-gate#pragma ident	"%Z%%M%	%I%	%E% SMI"
277c478bdstevel@tonic-gate
287c478bdstevel@tonic-gate#include <sys/types.h>
297c478bdstevel@tonic-gate#include <sys/param.h>
307c478bdstevel@tonic-gate#include <sys/time.h>
317c478bdstevel@tonic-gate#include <sys/cred.h>
327c478bdstevel@tonic-gate#include <sys/vfs.h>
33aa59c4crsb#include <sys/vfs_opreg.h>
347c478bdstevel@tonic-gate#include <sys/gfs.h>
357c478bdstevel@tonic-gate#include <sys/vnode.h>
367c478bdstevel@tonic-gate#include <sys/systm.h>
377c478bdstevel@tonic-gate#include <sys/errno.h>
387c478bdstevel@tonic-gate#include <sys/sysmacros.h>
397c478bdstevel@tonic-gate#include <fs/fs_subr.h>
407c478bdstevel@tonic-gate#include <sys/contract.h>
417c478bdstevel@tonic-gate#include <sys/contract_impl.h>
427c478bdstevel@tonic-gate#include <sys/ctfs.h>
437c478bdstevel@tonic-gate#include <sys/ctfs_impl.h>
447c478bdstevel@tonic-gate#include <sys/file.h>
457c478bdstevel@tonic-gate#include <sys/pathname.h>
467c478bdstevel@tonic-gate
477c478bdstevel@tonic-gate/*
487c478bdstevel@tonic-gate * Entries in a /system/contract/<type>/<ctid> directory.
497c478bdstevel@tonic-gate */
507c478bdstevel@tonic-gatestatic gfs_dirent_t ctfs_ctls[] = {
517c478bdstevel@tonic-gate	{ "ctl", ctfs_create_ctlnode, GFS_CACHE_VNODE, },
527c478bdstevel@tonic-gate	{ "status", ctfs_create_statnode, GFS_CACHE_VNODE },
537c478bdstevel@tonic-gate	{ "events", ctfs_create_evnode },
547c478bdstevel@tonic-gate	{ NULL }
557c478bdstevel@tonic-gate};
567c478bdstevel@tonic-gate#define	CTFS_NCTLS	((sizeof ctfs_ctls / sizeof (gfs_dirent_t)) - 1)
577c478bdstevel@tonic-gate
587c478bdstevel@tonic-gatestatic ino64_t ctfs_cdir_do_inode(vnode_t *, int);
597c478bdstevel@tonic-gate
607c478bdstevel@tonic-gate/*
617c478bdstevel@tonic-gate * ctfs_create_cdirnode
627c478bdstevel@tonic-gate *
637c478bdstevel@tonic-gate * If necessary, creates a cdirnode for the specified contract and
647c478bdstevel@tonic-gate * inserts it into the contract's list of vnodes.  Returns either the
657c478bdstevel@tonic-gate * existing vnode or the new one.
667c478bdstevel@tonic-gate */
677c478bdstevel@tonic-gatevnode_t *
687c478bdstevel@tonic-gatectfs_create_cdirnode(vnode_t *pvp, contract_t *ct)
697c478bdstevel@tonic-gate{
707c478bdstevel@tonic-gate	vnode_t *vp;
717c478bdstevel@tonic-gate	ctfs_cdirnode_t *cdir;
727c478bdstevel@tonic-gate
737c478bdstevel@tonic-gate	if ((vp = contract_vnode_get(ct, pvp->v_vfsp)) != NULL)
747c478bdstevel@tonic-gate		return (vp);
757c478bdstevel@tonic-gate
767c478bdstevel@tonic-gate	vp = gfs_dir_create(sizeof (ctfs_cdirnode_t), pvp, ctfs_ops_cdir,
777c478bdstevel@tonic-gate	    ctfs_ctls, ctfs_cdir_do_inode, CTFS_NAME_MAX, NULL, NULL);
787c478bdstevel@tonic-gate	cdir = vp->v_data;
797c478bdstevel@tonic-gate
807c478bdstevel@tonic-gate	/*
817c478bdstevel@tonic-gate	 * We must set the inode because this is called explicitly rather than
827c478bdstevel@tonic-gate	 * through GFS callbacks.
837c478bdstevel@tonic-gate	 */
847c478bdstevel@tonic-gate	gfs_file_set_inode(vp, CTFS_INO_CT_DIR(ct->ct_id));
857c478bdstevel@tonic-gate
867c478bdstevel@tonic-gate	cdir->ctfs_cn_contract	= ct;
877c478bdstevel@tonic-gate	contract_hold(ct);
887c478bdstevel@tonic-gate	contract_vnode_set(ct, &cdir->ctfs_cn_linkage, vp);
897c478bdstevel@tonic-gate
907c478bdstevel@tonic-gate	return (vp);
917c478bdstevel@tonic-gate}
927c478bdstevel@tonic-gate
937c478bdstevel@tonic-gate/*
947c478bdstevel@tonic-gate * ctfs_cdir_getattr - VOP_GETATTR entry point
957c478bdstevel@tonic-gate */
967c478bdstevel@tonic-gate/* ARGSUSED */
977c478bdstevel@tonic-gatestatic int
98da6c28aamwctfs_cdir_getattr(
99da6c28aamw	vnode_t *vp,
100da6c28aamw	vattr_t *vap,
101da6c28aamw	int flags,
102da6c28aamw	cred_t *cr,
103da6c28aamw	caller_context_t *ct)
1047c478bdstevel@tonic-gate{
1057c478bdstevel@tonic-gate	ctfs_cdirnode_t *cdirnode = vp->v_data;
1067c478bdstevel@tonic-gate
1077c478bdstevel@tonic-gate	vap->va_type = VDIR;
1087c478bdstevel@tonic-gate	vap->va_mode = 0555;
1097c478bdstevel@tonic-gate	vap->va_nlink = 2 + CTFS_NCTLS;
1107c478bdstevel@tonic-gate	vap->va_size = vap->va_nlink;
1117c478bdstevel@tonic-gate	vap->va_ctime = cdirnode->ctfs_cn_contract->ct_ctime;
1127c478bdstevel@tonic-gate	mutex_enter(&cdirnode->ctfs_cn_contract->ct_events.ctq_lock);
1137c478bdstevel@tonic-gate	vap->va_atime = vap->va_mtime =
1147c478bdstevel@tonic-gate	    cdirnode->ctfs_cn_contract->ct_events.ctq_atime;
1157c478bdstevel@tonic-gate	mutex_exit(&cdirnode->ctfs_cn_contract->ct_events.ctq_lock);
1167c478bdstevel@tonic-gate	ctfs_common_getattr(vp, vap);
1177c478bdstevel@tonic-gate
1187c478bdstevel@tonic-gate	return (0);
1197c478bdstevel@tonic-gate}
1207c478bdstevel@tonic-gate
1217c478bdstevel@tonic-gate/*
1227c478bdstevel@tonic-gate * ctfs_cdir_do_inode - return inode number based on static index
1237c478bdstevel@tonic-gate */
1247c478bdstevel@tonic-gatestatic ino64_t
1257c478bdstevel@tonic-gatectfs_cdir_do_inode(vnode_t *vp, int index)
1267c478bdstevel@tonic-gate{
1277c478bdstevel@tonic-gate	ctfs_cdirnode_t *cdirnode = vp->v_data;
1287c478bdstevel@tonic-gate
1297c478bdstevel@tonic-gate	return (CTFS_INO_CT_FILE(cdirnode->ctfs_cn_contract->ct_id, index));
1307c478bdstevel@tonic-gate}
1317c478bdstevel@tonic-gate
1327c478bdstevel@tonic-gate/*
1337c478bdstevel@tonic-gate * ctfs_cdir_inactive - VOP_INACTIVE entry point
1347c478bdstevel@tonic-gate */
1357c478bdstevel@tonic-gate/* ARGSUSED */
1367c478bdstevel@tonic-gatestatic void
137da6c28aamwctfs_cdir_inactive(vnode_t *vp, cred_t *cr, caller_context_t *cct)
1387c478bdstevel@tonic-gate{
1397c478bdstevel@tonic-gate	ctfs_cdirnode_t *cdirnode = vp->v_data;
1407c478bdstevel@tonic-gate	contract_t *ct = cdirnode->ctfs_cn_contract;
1417c478bdstevel@tonic-gate
1427c478bdstevel@tonic-gate	mutex_enter(&ct->ct_lock);
1437c478bdstevel@tonic-gate	if (gfs_dir_inactive(vp) == NULL) {
1447c478bdstevel@tonic-gate		mutex_exit(&ct->ct_lock);
1457c478bdstevel@tonic-gate		return;
1467c478bdstevel@tonic-gate	}
1477c478bdstevel@tonic-gate
1487c478bdstevel@tonic-gate	list_remove(&ct->ct_vnodes, &cdirnode->ctfs_cn_linkage);
1497c478bdstevel@tonic-gate	mutex_exit(&ct->ct_lock);
1507c478bdstevel@tonic-gate
1517c478bdstevel@tonic-gate	contract_rele(ct);
1527c478bdstevel@tonic-gate	kmem_free(cdirnode, sizeof (ctfs_cdirnode_t));
1537c478bdstevel@tonic-gate}
1547c478bdstevel@tonic-gate
1557c478bdstevel@tonic-gate
1567c478bdstevel@tonic-gateconst fs_operation_def_t ctfs_tops_cdir[] = {
157aa59c4crsb	{ VOPNAME_OPEN,		{ .vop_open = ctfs_open } },
158aa59c4crsb	{ VOPNAME_CLOSE,	{ .vop_close = ctfs_close } },
159aa59c4crsb	{ VOPNAME_IOCTL,	{ .error = fs_inval } },
160aa59c4crsb	{ VOPNAME_GETATTR,	{ .vop_getattr = ctfs_cdir_getattr } },
161aa59c4crsb	{ VOPNAME_ACCESS,	{ .vop_access = ctfs_access_dir } },
162aa59c4crsb	{ VOPNAME_READDIR,	{ .vop_readdir = gfs_vop_readdir } },
163aa59c4crsb	{ VOPNAME_LOOKUP,	{ .vop_lookup = gfs_vop_lookup } },
164aa59c4crsb	{ VOPNAME_SEEK,		{ .vop_seek = fs_seek } },
165aa59c4crsb	{ VOPNAME_INACTIVE,	{ .vop_inactive = ctfs_cdir_inactive } },
1667c478bdstevel@tonic-gate	{ NULL, NULL }
1677c478bdstevel@tonic-gate};
168