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 2008 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 #include <sys/model.h> 46 47 /* 48 * CTFS routines for the /system/contract/<type>/template vnode. 49 */ 50 51 /* 52 * ctfs_create_tmplnode 53 * 54 * Creates a new template and tdirnode, and returns the tdirnode. 55 */ 56 vnode_t * 57 ctfs_create_tmplnode(vnode_t *pvp) 58 { 59 vnode_t *vp; 60 ctfs_tmplnode_t *tmplnode; 61 62 ASSERT(gfs_file_index(pvp) < ct_ntypes); 63 64 vp = gfs_file_create(sizeof (ctfs_tmplnode_t), pvp, ctfs_ops_tmpl); 65 tmplnode = vp->v_data; 66 tmplnode->ctfs_tmn_tmpl = 67 ct_types[gfs_file_index(pvp)]->ct_type_default(); 68 69 return (vp); 70 } 71 72 /* 73 * ctfs_tmpl_open - VOP_OPEN entry point 74 * 75 * Just ensures the right mode bits are set. 76 */ 77 /* ARGSUSED */ 78 static int 79 ctfs_tmpl_open(vnode_t **vpp, int flag, cred_t *cr, caller_context_t *ct) 80 { 81 if (flag != (FREAD | FWRITE | FOFFMAX)) 82 return (EINVAL); 83 84 return (0); 85 } 86 87 /* 88 * ctfs_tmpl_getattr - VOP_GETATTR entry point 89 */ 90 /* ARGSUSED */ 91 static int 92 ctfs_tmpl_getattr( 93 vnode_t *vp, 94 vattr_t *vap, 95 int flags, 96 cred_t *cr, 97 caller_context_t *ct) 98 { 99 vap->va_type = VREG; 100 vap->va_mode = 0666; 101 vap->va_nlink = 1; 102 vap->va_size = 0; 103 vap->va_ctime.tv_sec = vp->v_vfsp->vfs_mtime; 104 vap->va_ctime.tv_nsec = 0; 105 vap->va_atime = vap->va_mtime = vap->va_ctime; 106 ctfs_common_getattr(vp, vap); 107 108 return (0); 109 } 110 111 /* 112 * ctfs_tmpl_ioctl - VOP_IOCTL entry point 113 * 114 * All the ct_tmpl_*(3contract) interfaces point here. 115 */ 116 /* ARGSUSED */ 117 static int 118 ctfs_tmpl_ioctl( 119 vnode_t *vp, 120 int cmd, 121 intptr_t arg, 122 int flag, 123 cred_t *cr, 124 int *rvalp, 125 caller_context_t *ct) 126 { 127 ctfs_tmplnode_t *tmplnode = vp->v_data; 128 ct_param_t param; 129 STRUCT_DECL(ct_param, uarg); 130 ctid_t ctid; 131 uint32_t local_ctpm_size; 132 int error; 133 134 STRUCT_INIT(uarg, flag); 135 136 switch (cmd) { 137 case CT_TACTIVATE: 138 ASSERT(tmplnode->ctfs_tmn_tmpl != NULL); 139 ctmpl_activate(tmplnode->ctfs_tmn_tmpl); 140 break; 141 case CT_TCLEAR: 142 ASSERT(tmplnode->ctfs_tmn_tmpl != NULL); 143 ctmpl_clear(tmplnode->ctfs_tmn_tmpl); 144 break; 145 case CT_TCREATE: 146 ASSERT(tmplnode->ctfs_tmn_tmpl != NULL); 147 error = ctmpl_create(tmplnode->ctfs_tmn_tmpl, &ctid); 148 if (error) 149 return (error); 150 *rvalp = ctid; 151 break; 152 case CT_TSET: 153 if (copyin((void *)arg, STRUCT_BUF(uarg), STRUCT_SIZE(uarg))) 154 return (EFAULT); 155 param.ctpm_id = STRUCT_FGET(uarg, ctpm_id); 156 param.ctpm_size = STRUCT_FGET(uarg, ctpm_size); 157 if (param.ctpm_size > CT_PARAM_MAX_SIZE || 158 param.ctpm_size == 0) 159 return (EINVAL); 160 param.ctpm_value = kmem_alloc(param.ctpm_size, KM_SLEEP); 161 if (copyin(STRUCT_FGETP(uarg, ctpm_value), param.ctpm_value, 162 param.ctpm_size)) 163 return (EFAULT); 164 error = ctmpl_set(tmplnode->ctfs_tmn_tmpl, ¶m, cr); 165 kmem_free(param.ctpm_value, param.ctpm_size); 166 return (error); 167 case CT_TGET: 168 if (copyin((void *)arg, STRUCT_BUF(uarg), STRUCT_SIZE(uarg))) 169 return (EFAULT); 170 param.ctpm_id = STRUCT_FGET(uarg, ctpm_id); 171 param.ctpm_size = STRUCT_FGET(uarg, ctpm_size); 172 if (param.ctpm_size > CT_PARAM_MAX_SIZE) 173 param.ctpm_size = CT_PARAM_MAX_SIZE; 174 if (param.ctpm_size == 0) 175 return (EINVAL); 176 local_ctpm_size = param.ctpm_size; 177 param.ctpm_value = kmem_alloc(param.ctpm_size, KM_SLEEP); 178 error = ctmpl_get(tmplnode->ctfs_tmn_tmpl, ¶m); 179 STRUCT_FSET(uarg, ctpm_size, param.ctpm_size); 180 if (!error && 181 (copyout(param.ctpm_value, STRUCT_FGETP(uarg, ctpm_value), 182 MIN(local_ctpm_size, param.ctpm_size))) || 183 copyout(STRUCT_BUF(uarg), (void *)arg, STRUCT_SIZE(uarg))) 184 error = EFAULT; 185 kmem_free(param.ctpm_value, local_ctpm_size); 186 return (error); 187 default: 188 return (EINVAL); 189 } 190 191 return (0); 192 } 193 194 /* 195 * ctfs_tmpl_inactive - VOP_INACTIVE entry point 196 */ 197 /* ARGSUSED */ 198 static void 199 ctfs_tmpl_inactive(vnode_t *vp, cred_t *cr, caller_context_t *ct) 200 { 201 ctfs_tmplnode_t *tmplnode; 202 203 if ((tmplnode = gfs_file_inactive(vp)) != NULL) { 204 ctmpl_free(tmplnode->ctfs_tmn_tmpl); 205 kmem_free(tmplnode, sizeof (ctfs_tmplnode_t)); 206 } 207 } 208 209 const fs_operation_def_t ctfs_tops_tmpl[] = { 210 { VOPNAME_OPEN, { .vop_open = ctfs_tmpl_open } }, 211 { VOPNAME_CLOSE, { .vop_close = ctfs_close } }, 212 { VOPNAME_IOCTL, { .vop_ioctl = ctfs_tmpl_ioctl } }, 213 { VOPNAME_GETATTR, { .vop_getattr = ctfs_tmpl_getattr } }, 214 { VOPNAME_ACCESS, { .vop_access = ctfs_access_readwrite } }, 215 { VOPNAME_READDIR, { .error = fs_notdir } }, 216 { VOPNAME_LOOKUP, { .error = fs_notdir } }, 217 { VOPNAME_INACTIVE, { .vop_inactive = ctfs_tmpl_inactive } }, 218 { NULL, NULL } 219 }; 220