xref: /onnv-gate/usr/src/uts/common/fs/ctfs/ctfs_tmpl.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <sys/types.h>
30*0Sstevel@tonic-gate #include <sys/param.h>
31*0Sstevel@tonic-gate #include <sys/time.h>
32*0Sstevel@tonic-gate #include <sys/cred.h>
33*0Sstevel@tonic-gate #include <sys/vfs.h>
34*0Sstevel@tonic-gate #include <sys/gfs.h>
35*0Sstevel@tonic-gate #include <sys/vnode.h>
36*0Sstevel@tonic-gate #include <sys/systm.h>
37*0Sstevel@tonic-gate #include <sys/errno.h>
38*0Sstevel@tonic-gate #include <sys/sysmacros.h>
39*0Sstevel@tonic-gate #include <fs/fs_subr.h>
40*0Sstevel@tonic-gate #include <sys/contract.h>
41*0Sstevel@tonic-gate #include <sys/contract_impl.h>
42*0Sstevel@tonic-gate #include <sys/ctfs.h>
43*0Sstevel@tonic-gate #include <sys/ctfs_impl.h>
44*0Sstevel@tonic-gate #include <sys/file.h>
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate /*
47*0Sstevel@tonic-gate  * CTFS routines for the /system/contract/<type>/template vnode.
48*0Sstevel@tonic-gate  */
49*0Sstevel@tonic-gate 
50*0Sstevel@tonic-gate /*
51*0Sstevel@tonic-gate  * ctfs_create_tmplnode
52*0Sstevel@tonic-gate  *
53*0Sstevel@tonic-gate  * Creates a new template and tdirnode, and returns the tdirnode.
54*0Sstevel@tonic-gate  */
55*0Sstevel@tonic-gate vnode_t *
56*0Sstevel@tonic-gate ctfs_create_tmplnode(vnode_t *pvp)
57*0Sstevel@tonic-gate {
58*0Sstevel@tonic-gate 	vnode_t *vp;
59*0Sstevel@tonic-gate 	ctfs_tmplnode_t *tmplnode;
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate 	ASSERT(gfs_file_index(pvp) < ct_ntypes);
62*0Sstevel@tonic-gate 
63*0Sstevel@tonic-gate 	vp = gfs_file_create(sizeof (ctfs_tmplnode_t), pvp, ctfs_ops_tmpl);
64*0Sstevel@tonic-gate 	tmplnode = vp->v_data;
65*0Sstevel@tonic-gate 	tmplnode->ctfs_tmn_tmpl =
66*0Sstevel@tonic-gate 	    ct_types[gfs_file_index(pvp)]->ct_type_default();
67*0Sstevel@tonic-gate 
68*0Sstevel@tonic-gate 	return (vp);
69*0Sstevel@tonic-gate }
70*0Sstevel@tonic-gate 
71*0Sstevel@tonic-gate /*
72*0Sstevel@tonic-gate  * ctfs_tmpl_open - VOP_OPEN entry point
73*0Sstevel@tonic-gate  *
74*0Sstevel@tonic-gate  * Just ensures the right mode bits are set.
75*0Sstevel@tonic-gate  */
76*0Sstevel@tonic-gate /* ARGSUSED */
77*0Sstevel@tonic-gate static int
78*0Sstevel@tonic-gate ctfs_tmpl_open(vnode_t **vpp, int flag, cred_t *cr)
79*0Sstevel@tonic-gate {
80*0Sstevel@tonic-gate 	if (flag != (FREAD | FWRITE | FOFFMAX))
81*0Sstevel@tonic-gate 		return (EINVAL);
82*0Sstevel@tonic-gate 
83*0Sstevel@tonic-gate 	return (0);
84*0Sstevel@tonic-gate }
85*0Sstevel@tonic-gate 
86*0Sstevel@tonic-gate /*
87*0Sstevel@tonic-gate  * ctfs_tmpl_getattr - VOP_GETATTR entry point
88*0Sstevel@tonic-gate  */
89*0Sstevel@tonic-gate /* ARGSUSED */
90*0Sstevel@tonic-gate static int
91*0Sstevel@tonic-gate ctfs_tmpl_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr)
92*0Sstevel@tonic-gate {
93*0Sstevel@tonic-gate 	vap->va_type = VREG;
94*0Sstevel@tonic-gate 	vap->va_mode = 0666;
95*0Sstevel@tonic-gate 	vap->va_nlink = 1;
96*0Sstevel@tonic-gate 	vap->va_size = 0;
97*0Sstevel@tonic-gate 	vap->va_ctime.tv_sec = vp->v_vfsp->vfs_mtime;
98*0Sstevel@tonic-gate 	vap->va_ctime.tv_nsec = 0;
99*0Sstevel@tonic-gate 	vap->va_atime = vap->va_mtime = vap->va_ctime;
100*0Sstevel@tonic-gate 	ctfs_common_getattr(vp, vap);
101*0Sstevel@tonic-gate 
102*0Sstevel@tonic-gate 	return (0);
103*0Sstevel@tonic-gate }
104*0Sstevel@tonic-gate 
105*0Sstevel@tonic-gate /*
106*0Sstevel@tonic-gate  * ctfs_tmpl_ioctl - VOP_IOCTL entry point
107*0Sstevel@tonic-gate  *
108*0Sstevel@tonic-gate  * All the ct_tmpl_*(3contract) interfaces point here.
109*0Sstevel@tonic-gate  */
110*0Sstevel@tonic-gate /* ARGSUSED */
111*0Sstevel@tonic-gate static int
112*0Sstevel@tonic-gate ctfs_tmpl_ioctl(vnode_t *vp, int cmd, intptr_t arg, int flag, cred_t *cr,
113*0Sstevel@tonic-gate     int *rvalp)
114*0Sstevel@tonic-gate {
115*0Sstevel@tonic-gate 	ctfs_tmplnode_t	*tmplnode = vp->v_data;
116*0Sstevel@tonic-gate 	ct_param_t param;
117*0Sstevel@tonic-gate 	int error;
118*0Sstevel@tonic-gate 
119*0Sstevel@tonic-gate 	switch (cmd) {
120*0Sstevel@tonic-gate 	case CT_TACTIVATE:
121*0Sstevel@tonic-gate 		ASSERT(tmplnode->ctfs_tmn_tmpl != NULL);
122*0Sstevel@tonic-gate 		ctmpl_activate(tmplnode->ctfs_tmn_tmpl);
123*0Sstevel@tonic-gate 		break;
124*0Sstevel@tonic-gate 	case CT_TCLEAR:
125*0Sstevel@tonic-gate 		ASSERT(tmplnode->ctfs_tmn_tmpl != NULL);
126*0Sstevel@tonic-gate 		ctmpl_clear(tmplnode->ctfs_tmn_tmpl);
127*0Sstevel@tonic-gate 		break;
128*0Sstevel@tonic-gate 	case CT_TCREATE:
129*0Sstevel@tonic-gate 		ASSERT(tmplnode->ctfs_tmn_tmpl != NULL);
130*0Sstevel@tonic-gate 		return (ctmpl_create(tmplnode->ctfs_tmn_tmpl));
131*0Sstevel@tonic-gate 	case CT_TSET:
132*0Sstevel@tonic-gate 		if (copyin((void *)arg, &param, sizeof (ct_param_t)))
133*0Sstevel@tonic-gate 			return (EFAULT);
134*0Sstevel@tonic-gate 		return (ctmpl_set(tmplnode->ctfs_tmn_tmpl, &param, cr));
135*0Sstevel@tonic-gate 	case CT_TGET:
136*0Sstevel@tonic-gate 		if (copyin((void *)arg, &param, sizeof (ct_param_t)))
137*0Sstevel@tonic-gate 			return (EFAULT);
138*0Sstevel@tonic-gate 		error = ctmpl_get(tmplnode->ctfs_tmn_tmpl, &param);
139*0Sstevel@tonic-gate 		if (error)
140*0Sstevel@tonic-gate 			return (error);
141*0Sstevel@tonic-gate 		if (copyout(&param, (void *)arg, sizeof (ct_param_t)))
142*0Sstevel@tonic-gate 			return (EFAULT);
143*0Sstevel@tonic-gate 		break;
144*0Sstevel@tonic-gate 	default:
145*0Sstevel@tonic-gate 		return (EINVAL);
146*0Sstevel@tonic-gate 	}
147*0Sstevel@tonic-gate 
148*0Sstevel@tonic-gate 	return (0);
149*0Sstevel@tonic-gate }
150*0Sstevel@tonic-gate 
151*0Sstevel@tonic-gate /*
152*0Sstevel@tonic-gate  * ctfs_tmpl_inactive - VOP_INACTIVE entry point
153*0Sstevel@tonic-gate  */
154*0Sstevel@tonic-gate /* ARGSUSED */
155*0Sstevel@tonic-gate static void
156*0Sstevel@tonic-gate ctfs_tmpl_inactive(vnode_t *vp, cred_t *cr)
157*0Sstevel@tonic-gate {
158*0Sstevel@tonic-gate 	ctfs_tmplnode_t *tmplnode;
159*0Sstevel@tonic-gate 
160*0Sstevel@tonic-gate 	if ((tmplnode = gfs_file_inactive(vp)) != NULL) {
161*0Sstevel@tonic-gate 		ctmpl_free(tmplnode->ctfs_tmn_tmpl);
162*0Sstevel@tonic-gate 		kmem_free(tmplnode, sizeof (ctfs_tmplnode_t));
163*0Sstevel@tonic-gate 	}
164*0Sstevel@tonic-gate }
165*0Sstevel@tonic-gate 
166*0Sstevel@tonic-gate const fs_operation_def_t ctfs_tops_tmpl[] = {
167*0Sstevel@tonic-gate 	{ VOPNAME_OPEN,		ctfs_tmpl_open },
168*0Sstevel@tonic-gate 	{ VOPNAME_CLOSE,	ctfs_close },
169*0Sstevel@tonic-gate 	{ VOPNAME_IOCTL,	ctfs_tmpl_ioctl },
170*0Sstevel@tonic-gate 	{ VOPNAME_GETATTR,	ctfs_tmpl_getattr },
171*0Sstevel@tonic-gate 	{ VOPNAME_ACCESS,	ctfs_access_readwrite },
172*0Sstevel@tonic-gate 	{ VOPNAME_READDIR,	fs_notdir },
173*0Sstevel@tonic-gate 	{ VOPNAME_LOOKUP,	fs_notdir },
174*0Sstevel@tonic-gate 	{ VOPNAME_INACTIVE,	(fs_generic_func_p) ctfs_tmpl_inactive },
175*0Sstevel@tonic-gate 	{ NULL, NULL }
176*0Sstevel@tonic-gate };
177