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