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 /* 29 * This command is used to create or open a file or directory, when EAs 30 * or an SD must be applied to the file. The functionality is similar 31 * to SmbNtCreateAndx with the option to supply extended attributes or 32 * a security descriptor. 33 * 34 * Note: we don't decode the extended attributes because we don't 35 * support them at this time. 36 */ 37 38 #include <smbsrv/smb_kproto.h> 39 #include <smbsrv/smb_fsops.h> 40 #include <smbsrv/ntstatus.h> 41 #include <smbsrv/ntaccess.h> 42 #include <smbsrv/nterror.h> 43 #include <smbsrv/ntifs.h> 44 #include <smbsrv/cifs.h> 45 #include <smbsrv/doserror.h> 46 47 /* 48 * smb_nt_transact_create 49 * 50 * This command is used to create or open a file or directory, when EAs 51 * or an SD must be applied to the file. The request parameter block 52 * encoding, data block encoding and output parameter block encoding are 53 * described in CIFS section 4.2.2. 54 * 55 * The format of the command is SmbNtTransact but it is basically the same 56 * as SmbNtCreateAndx with the option to supply extended attributes or a 57 * security descriptor. For information not defined in CIFS section 4.2.2 58 * see section 4.2.1 (NT_CREATE_ANDX). 59 */ 60 smb_sdrc_t 61 smb_pre_nt_transact_create(smb_request_t *sr, smb_xa_t *xa) 62 { 63 struct open_param *op = &sr->arg.open; 64 uint8_t SecurityFlags; 65 uint32_t EaLength; 66 uint32_t Flags; 67 uint32_t ImpersonationLevel; 68 uint32_t NameLength; 69 uint32_t sd_len; 70 uint32_t status; 71 smb_sd_t sd; 72 int rc; 73 74 bzero(op, sizeof (sr->arg.open)); 75 76 rc = smb_decode_mbc(&xa->req_param_mb, "%lllqllllllllb", 77 sr, 78 &Flags, 79 &op->rootdirfid, 80 &op->desired_access, 81 &op->dsize, 82 &op->dattr, 83 &op->share_access, 84 &op->create_disposition, 85 &op->create_options, 86 &sd_len, 87 &EaLength, 88 &NameLength, 89 &ImpersonationLevel, 90 &SecurityFlags); 91 92 if (rc == 0) { 93 if (NameLength == 0) { 94 op->fqi.path = "\\"; 95 } else if (NameLength >= MAXPATHLEN) { 96 smbsr_error(sr, NT_STATUS_OBJECT_PATH_NOT_FOUND, 97 ERRDOS, ERROR_PATH_NOT_FOUND); 98 rc = -1; 99 } else { 100 rc = smb_decode_mbc(&xa->req_param_mb, "%#u", 101 sr, NameLength, &op->fqi.path); 102 } 103 } 104 105 if (Flags) { 106 if (Flags & NT_CREATE_FLAG_REQUEST_OPLOCK) { 107 if (Flags & NT_CREATE_FLAG_REQUEST_OPBATCH) 108 op->my_flags = MYF_BATCH_OPLOCK; 109 else 110 op->my_flags = MYF_EXCLUSIVE_OPLOCK; 111 } 112 113 if (Flags & NT_CREATE_FLAG_OPEN_TARGET_DIR) 114 op->my_flags |= MYF_MUST_BE_DIRECTORY; 115 } 116 117 if (sd_len) { 118 status = smb_decode_sd(xa, &sd); 119 if (status != NT_STATUS_SUCCESS) { 120 smbsr_error(sr, status, 0, 0); 121 return (SDRC_ERROR); 122 } 123 op->sd = kmem_alloc(sizeof (smb_sd_t), KM_SLEEP); 124 *op->sd = sd; 125 } else { 126 op->sd = NULL; 127 } 128 129 DTRACE_SMB_2(op__NtTransactCreate__start, smb_request_t *, sr, 130 struct open_param *, op); 131 132 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR); 133 } 134 135 void 136 smb_post_nt_transact_create(smb_request_t *sr, smb_xa_t *xa) 137 { 138 smb_sd_t *sd = sr->arg.open.sd; 139 140 DTRACE_SMB_2(op__NtTransactCreate__done, smb_request_t *, sr, 141 smb_xa_t *, xa); 142 143 if (sd) { 144 smb_sd_term(sd); 145 kmem_free(sd, sizeof (smb_sd_t)); 146 } 147 } 148 149 smb_sdrc_t 150 smb_nt_transact_create(smb_request_t *sr, smb_xa_t *xa) 151 { 152 struct open_param *op = &sr->arg.open; 153 uint8_t OplockLevel; 154 uint8_t DirFlag; 155 smb_attr_t new_attr; 156 smb_node_t *node; 157 uint32_t status; 158 159 if ((op->create_options & FILE_DELETE_ON_CLOSE) && 160 !(op->desired_access & DELETE)) { 161 smbsr_error(sr, NT_STATUS_INVALID_PARAMETER, 0, 0); 162 return (SDRC_ERROR); 163 } 164 165 if (op->dattr & FILE_FLAG_WRITE_THROUGH) 166 op->create_options |= FILE_WRITE_THROUGH; 167 168 if (op->dattr & FILE_FLAG_DELETE_ON_CLOSE) 169 op->create_options |= FILE_DELETE_ON_CLOSE; 170 171 if (op->rootdirfid == 0) { 172 op->fqi.dir_snode = sr->tid_tree->t_snode; 173 } else { 174 sr->smb_fid = (ushort_t)op->rootdirfid; 175 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, 176 sr->smb_fid); 177 if (sr->fid_ofile == NULL) { 178 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, 179 ERRDOS, ERRbadfid); 180 return (SDRC_ERROR); 181 } 182 183 op->fqi.dir_snode = sr->fid_ofile->f_node; 184 smbsr_disconnect_file(sr); 185 } 186 187 status = smb_common_open(sr); 188 189 if (status != NT_STATUS_SUCCESS) 190 return (SDRC_ERROR); 191 192 if (STYPE_ISDSK(sr->tid_tree->t_res_type)) { 193 switch (MYF_OPLOCK_TYPE(op->my_flags)) { 194 case MYF_EXCLUSIVE_OPLOCK : 195 OplockLevel = 1; 196 break; 197 case MYF_BATCH_OPLOCK : 198 OplockLevel = 2; 199 break; 200 case MYF_LEVEL_II_OPLOCK : 201 OplockLevel = 3; 202 break; 203 case MYF_OPLOCK_NONE : 204 default: 205 OplockLevel = 0; 206 break; 207 } 208 209 if (op->create_options & FILE_DELETE_ON_CLOSE) 210 smb_preset_delete_on_close(sr->fid_ofile); 211 212 /* 213 * Set up the directory flag and ensure that 214 * we don't return a stale file size. 215 */ 216 node = sr->fid_ofile->f_node; 217 if (node->attr.sa_vattr.va_type == VDIR) { 218 DirFlag = 1; 219 new_attr.sa_vattr.va_size = 0; 220 } else { 221 DirFlag = 0; 222 new_attr.sa_mask = SMB_AT_SIZE; 223 (void) smb_fsop_getattr(sr, kcred, node, &new_attr); 224 node->attr.sa_vattr.va_size = new_attr.sa_vattr.va_size; 225 } 226 227 (void) smb_encode_mbc(&xa->rep_param_mb, "b.wllTTTTlqqwwb", 228 OplockLevel, 229 sr->smb_fid, 230 op->action_taken, 231 0, /* EaErrorOffset */ 232 &node->attr.sa_crtime, 233 &node->attr.sa_vattr.va_atime, 234 &node->attr.sa_vattr.va_mtime, 235 &node->attr.sa_vattr.va_ctime, 236 op->dattr & FILE_ATTRIBUTE_MASK, 237 new_attr.sa_vattr.va_size, 238 new_attr.sa_vattr.va_size, 239 op->ftype, 240 op->devstate, 241 DirFlag); 242 } else { 243 /* Named PIPE */ 244 bzero(&new_attr, sizeof (smb_attr_t)); 245 (void) smb_encode_mbc(&xa->rep_param_mb, "b.wllTTTTlqqwwb", 246 0, 247 sr->smb_fid, 248 op->action_taken, 249 0, /* EaErrorOffset */ 250 &new_attr.sa_crtime, 251 &new_attr.sa_vattr.va_atime, 252 &new_attr.sa_vattr.va_mtime, 253 &new_attr.sa_vattr.va_ctime, 254 op->dattr, 255 0x1000LL, 256 0LL, 257 op->ftype, 258 op->devstate, 259 0); 260 } 261 262 return (SDRC_SUCCESS); 263 } 264