1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/types.h> 29 #include <sys/param.h> 30 #include <sys/time.h> 31 #include <sys/cred.h> 32 #include <sys/vfs.h> 33 #include <sys/vfs_opreg.h> 34 #include <sys/gfs.h> 35 #include <sys/vnode.h> 36 #include <sys/systm.h> 37 #include <sys/errno.h> 38 #include <sys/sysmacros.h> 39 #include <fs/fs_subr.h> 40 #include <sys/contract.h> 41 #include <sys/contract_impl.h> 42 #include <sys/ctfs.h> 43 #include <sys/ctfs_impl.h> 44 #include <sys/file.h> 45 46 /* 47 * CTFS routines for the /system/contract/<type>/template vnode. 48 */ 49 50 /* 51 * ctfs_create_tmplnode 52 * 53 * Creates a new template and tdirnode, and returns the tdirnode. 54 */ 55 vnode_t * 56 ctfs_create_tmplnode(vnode_t *pvp) 57 { 58 vnode_t *vp; 59 ctfs_tmplnode_t *tmplnode; 60 61 ASSERT(gfs_file_index(pvp) < ct_ntypes); 62 63 vp = gfs_file_create(sizeof (ctfs_tmplnode_t), pvp, ctfs_ops_tmpl); 64 tmplnode = vp->v_data; 65 tmplnode->ctfs_tmn_tmpl = 66 ct_types[gfs_file_index(pvp)]->ct_type_default(); 67 68 return (vp); 69 } 70 71 /* 72 * ctfs_tmpl_open - VOP_OPEN entry point 73 * 74 * Just ensures the right mode bits are set. 75 */ 76 /* ARGSUSED */ 77 static int 78 ctfs_tmpl_open(vnode_t **vpp, int flag, cred_t *cr) 79 { 80 if (flag != (FREAD | FWRITE | FOFFMAX)) 81 return (EINVAL); 82 83 return (0); 84 } 85 86 /* 87 * ctfs_tmpl_getattr - VOP_GETATTR entry point 88 */ 89 /* ARGSUSED */ 90 static int 91 ctfs_tmpl_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr) 92 { 93 vap->va_type = VREG; 94 vap->va_mode = 0666; 95 vap->va_nlink = 1; 96 vap->va_size = 0; 97 vap->va_ctime.tv_sec = vp->v_vfsp->vfs_mtime; 98 vap->va_ctime.tv_nsec = 0; 99 vap->va_atime = vap->va_mtime = vap->va_ctime; 100 ctfs_common_getattr(vp, vap); 101 102 return (0); 103 } 104 105 /* 106 * ctfs_tmpl_ioctl - VOP_IOCTL entry point 107 * 108 * All the ct_tmpl_*(3contract) interfaces point here. 109 */ 110 /* ARGSUSED */ 111 static int 112 ctfs_tmpl_ioctl(vnode_t *vp, int cmd, intptr_t arg, int flag, cred_t *cr, 113 int *rvalp) 114 { 115 ctfs_tmplnode_t *tmplnode = vp->v_data; 116 ct_param_t param; 117 int error; 118 119 switch (cmd) { 120 case CT_TACTIVATE: 121 ASSERT(tmplnode->ctfs_tmn_tmpl != NULL); 122 ctmpl_activate(tmplnode->ctfs_tmn_tmpl); 123 break; 124 case CT_TCLEAR: 125 ASSERT(tmplnode->ctfs_tmn_tmpl != NULL); 126 ctmpl_clear(tmplnode->ctfs_tmn_tmpl); 127 break; 128 case CT_TCREATE: 129 ASSERT(tmplnode->ctfs_tmn_tmpl != NULL); 130 return (ctmpl_create(tmplnode->ctfs_tmn_tmpl)); 131 case CT_TSET: 132 if (copyin((void *)arg, ¶m, sizeof (ct_param_t))) 133 return (EFAULT); 134 return (ctmpl_set(tmplnode->ctfs_tmn_tmpl, ¶m, cr)); 135 case CT_TGET: 136 if (copyin((void *)arg, ¶m, sizeof (ct_param_t))) 137 return (EFAULT); 138 error = ctmpl_get(tmplnode->ctfs_tmn_tmpl, ¶m); 139 if (error) 140 return (error); 141 if (copyout(¶m, (void *)arg, sizeof (ct_param_t))) 142 return (EFAULT); 143 break; 144 default: 145 return (EINVAL); 146 } 147 148 return (0); 149 } 150 151 /* 152 * ctfs_tmpl_inactive - VOP_INACTIVE entry point 153 */ 154 /* ARGSUSED */ 155 static void 156 ctfs_tmpl_inactive(vnode_t *vp, cred_t *cr) 157 { 158 ctfs_tmplnode_t *tmplnode; 159 160 if ((tmplnode = gfs_file_inactive(vp)) != NULL) { 161 ctmpl_free(tmplnode->ctfs_tmn_tmpl); 162 kmem_free(tmplnode, sizeof (ctfs_tmplnode_t)); 163 } 164 } 165 166 const fs_operation_def_t ctfs_tops_tmpl[] = { 167 { VOPNAME_OPEN, { .vop_open = ctfs_tmpl_open } }, 168 { VOPNAME_CLOSE, { .vop_close = ctfs_close } }, 169 { VOPNAME_IOCTL, { .vop_ioctl = ctfs_tmpl_ioctl } }, 170 { VOPNAME_GETATTR, { .vop_getattr = ctfs_tmpl_getattr } }, 171 { VOPNAME_ACCESS, { .vop_access = ctfs_access_readwrite } }, 172 { VOPNAME_READDIR, { .error = fs_notdir } }, 173 { VOPNAME_LOOKUP, { .error = fs_notdir } }, 174 { VOPNAME_INACTIVE, { .vop_inactive = ctfs_tmpl_inactive } }, 175 { NULL, NULL } 176 }; 177