1da6c28aaSamw /* 2da6c28aaSamw * CDDL HEADER START 3da6c28aaSamw * 4da6c28aaSamw * The contents of this file are subject to the terms of the 5da6c28aaSamw * Common Development and Distribution License (the "License"). 6da6c28aaSamw * You may not use this file except in compliance with the License. 7da6c28aaSamw * 8da6c28aaSamw * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9da6c28aaSamw * or http://www.opensolaris.org/os/licensing. 10da6c28aaSamw * See the License for the specific language governing permissions 11da6c28aaSamw * and limitations under the License. 12da6c28aaSamw * 13da6c28aaSamw * When distributing Covered Code, include this CDDL HEADER in each 14da6c28aaSamw * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15da6c28aaSamw * If applicable, add the following below this CDDL HEADER, with the 16da6c28aaSamw * fields enclosed by brackets "[]" replaced with your own identifying 17da6c28aaSamw * information: Portions Copyright [yyyy] [name of copyright owner] 18da6c28aaSamw * 19da6c28aaSamw * CDDL HEADER END 20da6c28aaSamw */ 21148c5f43SAlan Wright 22da6c28aaSamw /* 23148c5f43SAlan Wright * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 24*a90cf9f2SGordon Ross * Copyright 2015 Nexenta Systems, Inc. All rights reserved. 25da6c28aaSamw */ 26da6c28aaSamw 27da6c28aaSamw /* 28da6c28aaSamw * This module provides the common open functionality to the various 29da6c28aaSamw * open and create SMB interface functions. 30da6c28aaSamw */ 31da6c28aaSamw 32bbf6f00cSJordan Brown #include <sys/types.h> 33bbf6f00cSJordan Brown #include <sys/cmn_err.h> 34da6c28aaSamw #include <sys/fcntl.h> 35dc20a302Sas200622 #include <sys/nbmlock.h> 36bbf6f00cSJordan Brown #include <smbsrv/string.h> 37bbf6f00cSJordan Brown #include <smbsrv/smb_kproto.h> 38bbf6f00cSJordan Brown #include <smbsrv/smb_fsops.h> 39bbf6f00cSJordan Brown #include <smbsrv/smbinfo.h> 40da6c28aaSamw 4168b2bbf2SGordon Ross static volatile uint32_t smb_fids = 0; 42b819cea2SGordon Ross #define SMB_UNIQ_FID() atomic_inc_32_nv(&smb_fids) 437b59d02dSjb150015 447b59d02dSjb150015 static uint32_t smb_open_subr(smb_request_t *); 45faa1795aSjb150015 extern uint32_t smb_is_executable(char *); 468b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States static void smb_delete_new_object(smb_request_t *); 475fd03bc0SGordon Ross static int smb_set_open_attributes(smb_request_t *, smb_ofile_t *); 48cb174861Sjoyce mcintosh static void smb_open_oplock_break(smb_request_t *, smb_node_t *); 49cb174861Sjoyce mcintosh static boolean_t smb_open_attr_only(smb_arg_open_t *); 50cb174861Sjoyce mcintosh static boolean_t smb_open_overwrite(smb_arg_open_t *); 51da6c28aaSamw 52da6c28aaSamw /* 53da6c28aaSamw * smb_access_generic_to_file 54da6c28aaSamw * 55da6c28aaSamw * Search MSDN for IoCreateFile to see following mapping. 56da6c28aaSamw * 57da6c28aaSamw * GENERIC_READ STANDARD_RIGHTS_READ, FILE_READ_DATA, 58da6c28aaSamw * FILE_READ_ATTRIBUTES and FILE_READ_EA 59da6c28aaSamw * 60da6c28aaSamw * GENERIC_WRITE STANDARD_RIGHTS_WRITE, FILE_WRITE_DATA, 61da6c28aaSamw * FILE_WRITE_ATTRIBUTES, FILE_WRITE_EA, and FILE_APPEND_DATA 62da6c28aaSamw * 63da6c28aaSamw * GENERIC_EXECUTE STANDARD_RIGHTS_EXECUTE, SYNCHRONIZE, and FILE_EXECUTE. 64da6c28aaSamw */ 65*a90cf9f2SGordon Ross static uint32_t 66da6c28aaSamw smb_access_generic_to_file(uint32_t desired_access) 67da6c28aaSamw { 68*a90cf9f2SGordon Ross uint32_t access = 0; 69da6c28aaSamw 70da6c28aaSamw if (desired_access & GENERIC_ALL) 71da6c28aaSamw return (FILE_ALL_ACCESS & ~SYNCHRONIZE); 72da6c28aaSamw 73da6c28aaSamw if (desired_access & GENERIC_EXECUTE) { 74da6c28aaSamw desired_access &= ~GENERIC_EXECUTE; 75da6c28aaSamw access |= (STANDARD_RIGHTS_EXECUTE | 76da6c28aaSamw SYNCHRONIZE | FILE_EXECUTE); 77da6c28aaSamw } 78da6c28aaSamw 79da6c28aaSamw if (desired_access & GENERIC_WRITE) { 80da6c28aaSamw desired_access &= ~GENERIC_WRITE; 81da6c28aaSamw access |= (FILE_GENERIC_WRITE & ~SYNCHRONIZE); 82da6c28aaSamw } 83da6c28aaSamw 84da6c28aaSamw if (desired_access & GENERIC_READ) { 85da6c28aaSamw desired_access &= ~GENERIC_READ; 86da6c28aaSamw access |= FILE_GENERIC_READ; 87da6c28aaSamw } 88da6c28aaSamw 89da6c28aaSamw return (access | desired_access); 90da6c28aaSamw } 91da6c28aaSamw 92da6c28aaSamw /* 93da6c28aaSamw * smb_omode_to_amask 94da6c28aaSamw * 95da6c28aaSamw * This function converts open modes used by Open and Open AndX 96da6c28aaSamw * commands to desired access bits used by NT Create AndX command. 97da6c28aaSamw */ 98da6c28aaSamw uint32_t 99da6c28aaSamw smb_omode_to_amask(uint32_t desired_access) 100da6c28aaSamw { 101da6c28aaSamw switch (desired_access & SMB_DA_ACCESS_MASK) { 102da6c28aaSamw case SMB_DA_ACCESS_READ: 103da6c28aaSamw return (FILE_GENERIC_READ); 104da6c28aaSamw 105da6c28aaSamw case SMB_DA_ACCESS_WRITE: 106da6c28aaSamw return (FILE_GENERIC_WRITE); 107da6c28aaSamw 108da6c28aaSamw case SMB_DA_ACCESS_READ_WRITE: 109da6c28aaSamw return (FILE_GENERIC_READ | FILE_GENERIC_WRITE); 110da6c28aaSamw 111da6c28aaSamw case SMB_DA_ACCESS_EXECUTE: 112da6c28aaSamw return (FILE_GENERIC_EXECUTE); 113da6c28aaSamw 1142c2961f8Sjose borrego default: 1152c2961f8Sjose borrego return (FILE_GENERIC_ALL); 1162c2961f8Sjose borrego } 117da6c28aaSamw } 118da6c28aaSamw 119da6c28aaSamw /* 120da6c28aaSamw * smb_denymode_to_sharemode 121da6c28aaSamw * 122da6c28aaSamw * This function converts deny modes used by Open and Open AndX 123da6c28aaSamw * commands to share access bits used by NT Create AndX command. 124da6c28aaSamw */ 125da6c28aaSamw uint32_t 126da6c28aaSamw smb_denymode_to_sharemode(uint32_t desired_access, char *fname) 127da6c28aaSamw { 128da6c28aaSamw switch (desired_access & SMB_DA_SHARE_MASK) { 129da6c28aaSamw case SMB_DA_SHARE_COMPATIBILITY: 130da6c28aaSamw if (smb_is_executable(fname)) 131da6c28aaSamw return (FILE_SHARE_READ | FILE_SHARE_WRITE); 132c8ec8eeaSjose borrego 133c8ec8eeaSjose borrego return (FILE_SHARE_ALL); 134da6c28aaSamw 135da6c28aaSamw case SMB_DA_SHARE_EXCLUSIVE: 136da6c28aaSamw return (FILE_SHARE_NONE); 137da6c28aaSamw 138da6c28aaSamw case SMB_DA_SHARE_DENY_WRITE: 139da6c28aaSamw return (FILE_SHARE_READ); 140da6c28aaSamw 141da6c28aaSamw case SMB_DA_SHARE_DENY_READ: 142da6c28aaSamw return (FILE_SHARE_WRITE); 143da6c28aaSamw 144da6c28aaSamw case SMB_DA_SHARE_DENY_NONE: 1452c2961f8Sjose borrego default: 146da6c28aaSamw return (FILE_SHARE_READ | FILE_SHARE_WRITE); 147da6c28aaSamw } 148da6c28aaSamw } 149da6c28aaSamw 150da6c28aaSamw /* 151da6c28aaSamw * smb_ofun_to_crdisposition 152da6c28aaSamw * 153da6c28aaSamw * This function converts open function values used by Open and Open AndX 154da6c28aaSamw * commands to create disposition values used by NT Create AndX command. 155da6c28aaSamw */ 156da6c28aaSamw uint32_t 157da6c28aaSamw smb_ofun_to_crdisposition(uint16_t ofun) 158da6c28aaSamw { 159da6c28aaSamw static int ofun_cr_map[3][2] = 160da6c28aaSamw { 161da6c28aaSamw { -1, FILE_CREATE }, 162da6c28aaSamw { FILE_OPEN, FILE_OPEN_IF }, 163da6c28aaSamw { FILE_OVERWRITE, FILE_OVERWRITE_IF } 164da6c28aaSamw }; 165da6c28aaSamw 166da6c28aaSamw int row = ofun & SMB_OFUN_OPEN_MASK; 167da6c28aaSamw int col = (ofun & SMB_OFUN_CREATE_MASK) >> 4; 168da6c28aaSamw 169da6c28aaSamw if (row == 3) 1702c2961f8Sjose borrego return (FILE_MAXIMUM_DISPOSITION + 1); 171da6c28aaSamw 172da6c28aaSamw return (ofun_cr_map[row][col]); 173da6c28aaSamw } 174da6c28aaSamw 175da6c28aaSamw /* 1767b59d02dSjb150015 * Retry opens to avoid spurious sharing violations, due to timing 1777b59d02dSjb150015 * issues between closes and opens. The client that already has the 1787b59d02dSjb150015 * file open may be in the process of closing it. 1797b59d02dSjb150015 */ 1807b59d02dSjb150015 uint32_t 1817b59d02dSjb150015 smb_common_open(smb_request_t *sr) 1827b59d02dSjb150015 { 183148c5f43SAlan Wright smb_arg_open_t *parg; 1847b59d02dSjb150015 uint32_t status = NT_STATUS_SUCCESS; 1857b59d02dSjb150015 int count; 1867b59d02dSjb150015 187bbf6f00cSJordan Brown parg = kmem_alloc(sizeof (*parg), KM_SLEEP); 188bbf6f00cSJordan Brown bcopy(&sr->arg.open, parg, sizeof (*parg)); 189bbf6f00cSJordan Brown 1907b59d02dSjb150015 for (count = 0; count <= 4; count++) { 191bbf6f00cSJordan Brown if (count != 0) 1927b59d02dSjb150015 delay(MSEC_TO_TICK(400)); 1937b59d02dSjb150015 194faa1795aSjb150015 status = smb_open_subr(sr); 195faa1795aSjb150015 if (status != NT_STATUS_SHARING_VIOLATION) 1967b59d02dSjb150015 break; 197bbf6f00cSJordan Brown 198bbf6f00cSJordan Brown bcopy(parg, &sr->arg.open, sizeof (*parg)); 1997b59d02dSjb150015 } 2007b59d02dSjb150015 201*a90cf9f2SGordon Ross if (status == NT_STATUS_NO_SUCH_FILE) 202*a90cf9f2SGordon Ross status = NT_STATUS_OBJECT_NAME_NOT_FOUND; 2032c2961f8Sjose borrego 204bbf6f00cSJordan Brown kmem_free(parg, sizeof (*parg)); 2057b59d02dSjb150015 return (status); 2067b59d02dSjb150015 } 2077b59d02dSjb150015 2087b59d02dSjb150015 /* 209da6c28aaSamw * smb_open_subr 210da6c28aaSamw * 211da6c28aaSamw * Notes on write-through behaviour. It looks like pre-LM0.12 versions 212da6c28aaSamw * of the protocol specify the write-through mode when a file is opened, 213da6c28aaSamw * (SmbOpen, SmbOpenAndX) so the write calls (SmbWrite, SmbWriteAndClose, 214da6c28aaSamw * SmbWriteAndUnlock) don't need to contain a write-through flag. 215da6c28aaSamw * 216da6c28aaSamw * With LM0.12, the open calls (SmbCreateAndX, SmbNtTransactCreate) 217da6c28aaSamw * don't indicate which write-through mode to use. Instead the write 218da6c28aaSamw * calls (SmbWriteAndX, SmbWriteRaw) specify the mode on a per call 219da6c28aaSamw * basis. 220da6c28aaSamw * 221da6c28aaSamw * We don't care which open call was used to get us here, we just need 222da6c28aaSamw * to ensure that the write-through mode flag is copied from the open 223da6c28aaSamw * parameters to the node. We test the omode write-through flag in all 224da6c28aaSamw * write functions. 225da6c28aaSamw * 226*a90cf9f2SGordon Ross * This function returns NT status codes. 2278c10a865Sas200622 * 2288c10a865Sas200622 * The following rules apply when processing a file open request: 2298c10a865Sas200622 * 230cb174861Sjoyce mcintosh * - Oplocks must be broken prior to share checking as the break may 231cb174861Sjoyce mcintosh * cause other clients to close the file, which would affect sharing 232cb174861Sjoyce mcintosh * checks. 2338c10a865Sas200622 * 2348c10a865Sas200622 * - Share checks must take place prior to access checks for correct 2358c10a865Sas200622 * Windows semantics and to prevent unnecessary NFS delegation recalls. 2368c10a865Sas200622 * 2378c10a865Sas200622 * - Oplocks must be acquired after open to ensure the correct 2388c10a865Sas200622 * synchronization with NFS delegation and FEM installation. 239c8ec8eeaSjose borrego * 240c8ec8eeaSjose borrego * DOS readonly bit rules 241c8ec8eeaSjose borrego * 242c8ec8eeaSjose borrego * 1. The creator of a readonly file can write to/modify the size of the file 243c8ec8eeaSjose borrego * using the original create fid, even though the file will appear as readonly 244c8ec8eeaSjose borrego * to all other fids and via a CIFS getattr call. 245037cac00Sjoyce mcintosh * The readonly bit therefore cannot be set in the filesystem until the file 246037cac00Sjoyce mcintosh * is closed (smb_ofile_close). It is accounted for via ofile and node flags. 247c8ec8eeaSjose borrego * 248c8ec8eeaSjose borrego * 2. A setinfo operation (using either an open fid or a path) to set/unset 249c8ec8eeaSjose borrego * readonly will be successful regardless of whether a creator of a readonly 250c8ec8eeaSjose borrego * file has an open fid (and has the special privilege mentioned in #1, 251c8ec8eeaSjose borrego * above). I.e., the creator of a readonly fid holding that fid will no longer 252c8ec8eeaSjose borrego * have a special privilege. 253c8ec8eeaSjose borrego * 254c8ec8eeaSjose borrego * 3. The DOS readonly bit affects only data and some metadata. 255c8ec8eeaSjose borrego * The following metadata can be changed regardless of the readonly bit: 256c8ec8eeaSjose borrego * - security descriptors 257c8ec8eeaSjose borrego * - DOS attributes 258c8ec8eeaSjose borrego * - timestamps 259c8ec8eeaSjose borrego * 260c8ec8eeaSjose borrego * In the current implementation, the file size cannot be changed (except for 261c8ec8eeaSjose borrego * the exceptions in #1 and #2, above). 2622c1b14e5Sjose borrego * 2632c1b14e5Sjose borrego * 2642c1b14e5Sjose borrego * DOS attribute rules 2652c1b14e5Sjose borrego * 2662c1b14e5Sjose borrego * These rules are specific to creating / opening files and directories. 2672c1b14e5Sjose borrego * How the attribute value (specifically ZERO or FILE_ATTRIBUTE_NORMAL) 2682c1b14e5Sjose borrego * should be interpreted may differ in other requests. 2692c1b14e5Sjose borrego * 2702c1b14e5Sjose borrego * - An attribute value equal to ZERO or FILE_ATTRIBUTE_NORMAL means that the 2712c1b14e5Sjose borrego * file's attributes should be cleared. 2722c1b14e5Sjose borrego * - If FILE_ATTRIBUTE_NORMAL is specified with any other attributes, 2732c1b14e5Sjose borrego * FILE_ATTRIBUTE_NORMAL is ignored. 2742c1b14e5Sjose borrego * 2752c1b14e5Sjose borrego * 1. Creating a new file 2762c1b14e5Sjose borrego * - The request attributes + FILE_ATTRIBUTE_ARCHIVE are applied to the file. 2772c1b14e5Sjose borrego * 2782c1b14e5Sjose borrego * 2. Creating a new directory 2792c1b14e5Sjose borrego * - The request attributes + FILE_ATTRIBUTE_DIRECTORY are applied to the file. 2802c1b14e5Sjose borrego * - FILE_ATTRIBUTE_ARCHIVE does not get set. 2812c1b14e5Sjose borrego * 2822c1b14e5Sjose borrego * 3. Overwriting an existing file 2832c1b14e5Sjose borrego * - the request attributes are used as search attributes. If the existing 2842c1b14e5Sjose borrego * file does not meet the search criteria access is denied. 2852c1b14e5Sjose borrego * - otherwise, applies attributes + FILE_ATTRIBUTE_ARCHIVE. 2862c1b14e5Sjose borrego * 2872c1b14e5Sjose borrego * 4. Opening an existing file or directory 2882c1b14e5Sjose borrego * The request attributes are ignored. 289da6c28aaSamw */ 2907b59d02dSjb150015 static uint32_t 2917b59d02dSjb150015 smb_open_subr(smb_request_t *sr) 292da6c28aaSamw { 293eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States boolean_t created = B_FALSE; 294eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States boolean_t last_comp_found = B_FALSE; 2952c2961f8Sjose borrego smb_node_t *node = NULL; 2962c2961f8Sjose borrego smb_node_t *dnode = NULL; 297eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_t *cur_node = NULL; 298148c5f43SAlan Wright smb_arg_open_t *op = &sr->sr_open; 299da6c28aaSamw int rc; 3002c2961f8Sjose borrego smb_ofile_t *of; 301da6c28aaSamw smb_attr_t new_attr; 302da6c28aaSamw int max_requested = 0; 303da6c28aaSamw uint32_t max_allowed; 304da6c28aaSamw uint32_t status = NT_STATUS_SUCCESS; 305da6c28aaSamw int is_dir; 306da6c28aaSamw smb_error_t err; 3072c2961f8Sjose borrego boolean_t is_stream = B_FALSE; 308da6c28aaSamw int lookup_flags = SMB_FOLLOW_LINKS; 309dc20a302Sas200622 uint32_t uniq_fid; 310eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_pathname_t *pn = &op->fqi.fq_path; 311cb174861Sjoyce mcintosh smb_server_t *sv = sr->sr_server; 312da6c28aaSamw 313da6c28aaSamw is_dir = (op->create_options & FILE_DIRECTORY_FILE) ? 1 : 0; 314da6c28aaSamw 315da6c28aaSamw /* 316037cac00Sjoyce mcintosh * If the object being created or opened is a directory 317037cac00Sjoyce mcintosh * the Disposition parameter must be one of FILE_CREATE, 318037cac00Sjoyce mcintosh * FILE_OPEN, or FILE_OPEN_IF 319da6c28aaSamw */ 320037cac00Sjoyce mcintosh if (is_dir) { 321da6c28aaSamw if ((op->create_disposition != FILE_CREATE) && 322da6c28aaSamw (op->create_disposition != FILE_OPEN_IF) && 323da6c28aaSamw (op->create_disposition != FILE_OPEN)) { 3247b59d02dSjb150015 return (NT_STATUS_INVALID_PARAMETER); 325da6c28aaSamw } 326da6c28aaSamw } 327da6c28aaSamw 328da6c28aaSamw if (op->desired_access & MAXIMUM_ALLOWED) { 329da6c28aaSamw max_requested = 1; 330da6c28aaSamw op->desired_access &= ~MAXIMUM_ALLOWED; 331da6c28aaSamw } 332da6c28aaSamw op->desired_access = smb_access_generic_to_file(op->desired_access); 333da6c28aaSamw 334da6c28aaSamw if (sr->session->s_file_cnt >= SMB_SESSION_OFILE_MAX) { 335da6c28aaSamw ASSERT(sr->uid_user); 336cb174861Sjoyce mcintosh cmn_err(CE_NOTE, "smbsrv[%s\\%s]: TOO_MANY_OPENED_FILES", 337148c5f43SAlan Wright sr->uid_user->u_domain, sr->uid_user->u_name); 3387b59d02dSjb150015 return (NT_STATUS_TOO_MANY_OPENED_FILES); 339da6c28aaSamw } 340da6c28aaSamw 341da6c28aaSamw /* This must be NULL at this point */ 342da6c28aaSamw sr->fid_ofile = NULL; 343da6c28aaSamw 344da6c28aaSamw op->devstate = 0; 345da6c28aaSamw 346da6c28aaSamw switch (sr->tid_tree->t_res_type & STYPE_MASK) { 347da6c28aaSamw case STYPE_DISKTREE: 348f96bd5c8SAlan Wright case STYPE_PRINTQ: 349da6c28aaSamw break; 350da6c28aaSamw 351da6c28aaSamw case STYPE_IPC: 352*a90cf9f2SGordon Ross /* 353*a90cf9f2SGordon Ross * Security descriptors for pipes are not implemented, 354*a90cf9f2SGordon Ross * so just setup a reasonable access mask. 355*a90cf9f2SGordon Ross */ 356*a90cf9f2SGordon Ross op->desired_access = (READ_CONTROL | SYNCHRONIZE | 357*a90cf9f2SGordon Ross FILE_READ_DATA | FILE_READ_ATTRIBUTES | 358*a90cf9f2SGordon Ross FILE_WRITE_DATA | FILE_APPEND_DATA); 359cb174861Sjoyce mcintosh 360*a90cf9f2SGordon Ross /* 361*a90cf9f2SGordon Ross * Limit the number of open pipe instances. 362*a90cf9f2SGordon Ross */ 363cb174861Sjoyce mcintosh if ((rc = smb_threshold_enter(&sv->sv_opipe_ct)) != 0) { 364cb174861Sjoyce mcintosh status = RPC_NT_SERVER_TOO_BUSY; 365cb174861Sjoyce mcintosh return (status); 366cb174861Sjoyce mcintosh } 367cb174861Sjoyce mcintosh 368da6c28aaSamw /* 369da6c28aaSamw * No further processing for IPC, we need to either 370da6c28aaSamw * raise an exception or return success here. 371da6c28aaSamw */ 37268b2bbf2SGordon Ross uniq_fid = SMB_UNIQ_FID(); 37368b2bbf2SGordon Ross status = smb_opipe_open(sr, uniq_fid); 374856399cfSGordon Ross smb_threshold_exit(&sv->sv_opipe_ct); 3757b59d02dSjb150015 return (status); 376da6c28aaSamw 377da6c28aaSamw default: 3787b59d02dSjb150015 return (NT_STATUS_BAD_DEVICE_TYPE); 379da6c28aaSamw } 380da6c28aaSamw 381fe1c642dSBill Krier smb_pathname_init(sr, pn, pn->pn_path); 382fe1c642dSBill Krier if (!smb_pathname_validate(sr, pn)) 383fe1c642dSBill Krier return (sr->smb_error.status); 384fe1c642dSBill Krier 385b24e356bSPeer Dampmann if (strlen(pn->pn_path) >= SMB_MAXPATHLEN) { 386*a90cf9f2SGordon Ross return (NT_STATUS_OBJECT_PATH_INVALID); 387da6c28aaSamw } 388da6c28aaSamw 389fe1c642dSBill Krier if (is_dir) { 390fe1c642dSBill Krier if (!smb_validate_dirname(sr, pn)) 391fe1c642dSBill Krier return (sr->smb_error.status); 392fe1c642dSBill Krier } else { 393fe1c642dSBill Krier if (!smb_validate_object_name(sr, pn)) 394fe1c642dSBill Krier return (sr->smb_error.status); 395da6c28aaSamw } 396da6c28aaSamw 397eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States cur_node = op->fqi.fq_dnode ? 398eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fqi.fq_dnode : sr->tid_tree->t_snode; 399da6c28aaSamw 400eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States /* 401eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States * if no path or filename are specified the stream should be 402eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States * created on cur_node 403eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States */ 404eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States if (!is_dir && !pn->pn_pname && !pn->pn_fname && pn->pn_sname) { 4059fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States /* 4069fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States * Can't currently handle a stream on the tree root. 4079fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States * If a stream is being opened return "not found", otherwise 4089fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States * return "access denied". 4099fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States */ 410eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States if (cur_node == sr->tid_tree->t_snode) { 4119fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (op->create_disposition == FILE_OPEN) { 4129fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States return (NT_STATUS_OBJECT_NAME_NOT_FOUND); 4139fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States } 414eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States return (NT_STATUS_ACCESS_DENIED); 415eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 416eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States 417eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States (void) snprintf(op->fqi.fq_last_comp, 418eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States sizeof (op->fqi.fq_last_comp), 419eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States "%s%s", cur_node->od_name, pn->pn_sname); 420eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States 4211fcced4cSJordan Brown op->fqi.fq_dnode = cur_node->n_dnode; 422eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_ref(op->fqi.fq_dnode); 423eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } else { 424b819cea2SGordon Ross rc = smb_pathname_reduce(sr, sr->user_cr, pn->pn_path, 425eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States sr->tid_tree->t_snode, cur_node, &op->fqi.fq_dnode, 426b819cea2SGordon Ross op->fqi.fq_last_comp); 427b819cea2SGordon Ross if (rc != 0) { 428*a90cf9f2SGordon Ross return (smb_errno2status(rc)); 429da6c28aaSamw } 430eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 431da6c28aaSamw 432da6c28aaSamw /* 433da6c28aaSamw * If the access mask has only DELETE set (ignore 434da6c28aaSamw * FILE_READ_ATTRIBUTES), then assume that this 435da6c28aaSamw * is a request to delete the link (if a link) 436da6c28aaSamw * and do not follow links. Otherwise, follow 437da6c28aaSamw * the link to the target. 438da6c28aaSamw */ 439037cac00Sjoyce mcintosh if ((op->desired_access & ~FILE_READ_ATTRIBUTES) == DELETE) 440da6c28aaSamw lookup_flags &= ~SMB_FOLLOW_LINKS; 441da6c28aaSamw 4428622ec45SGordon Ross rc = smb_fsop_lookup_name(sr, zone_kcred(), lookup_flags, 443eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States sr->tid_tree->t_snode, op->fqi.fq_dnode, op->fqi.fq_last_comp, 444037cac00Sjoyce mcintosh &op->fqi.fq_fnode); 445da6c28aaSamw 446da6c28aaSamw if (rc == 0) { 447eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States last_comp_found = B_TRUE; 4485fd03bc0SGordon Ross /* 4495fd03bc0SGordon Ross * Need the DOS attributes below, where we 4505fd03bc0SGordon Ross * check the search attributes (sattr). 4515fd03bc0SGordon Ross */ 4525fd03bc0SGordon Ross op->fqi.fq_fattr.sa_mask = SMB_AT_DOSATTR; 4538622ec45SGordon Ross rc = smb_node_getattr(sr, op->fqi.fq_fnode, zone_kcred(), 4545fd03bc0SGordon Ross NULL, &op->fqi.fq_fattr); 455037cac00Sjoyce mcintosh if (rc != 0) { 456037cac00Sjoyce mcintosh smb_node_release(op->fqi.fq_fnode); 457037cac00Sjoyce mcintosh smb_node_release(op->fqi.fq_dnode); 458*a90cf9f2SGordon Ross return (NT_STATUS_INTERNAL_ERROR); 459037cac00Sjoyce mcintosh } 460da6c28aaSamw } else if (rc == ENOENT) { 461eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States last_comp_found = B_FALSE; 462eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fqi.fq_fnode = NULL; 463da6c28aaSamw rc = 0; 464da6c28aaSamw } else { 465eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(op->fqi.fq_dnode); 466*a90cf9f2SGordon Ross return (smb_errno2status(rc)); 467da6c28aaSamw } 468da6c28aaSamw 469037cac00Sjoyce mcintosh 470dc20a302Sas200622 /* 471dc20a302Sas200622 * The uniq_fid is a CIFS-server-wide unique identifier for an ofile 472dc20a302Sas200622 * which is used to uniquely identify open instances for the 473c8ec8eeaSjose borrego * VFS share reservation and POSIX locks. 474dc20a302Sas200622 */ 475dc20a302Sas200622 476dc20a302Sas200622 uniq_fid = SMB_UNIQ_FID(); 477dc20a302Sas200622 478eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States if (last_comp_found) { 4796537f381Sas200622 4809fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 4819fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States dnode = op->fqi.fq_dnode; 4826537f381Sas200622 4839fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (!smb_node_is_file(node) && !smb_node_is_dir(node) && 4849fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States !smb_node_is_symlink(node)) { 4859fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 4869fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 4876537f381Sas200622 return (NT_STATUS_ACCESS_DENIED); 4886537f381Sas200622 } 4896537f381Sas200622 490da6c28aaSamw /* 4912c1b14e5Sjose borrego * Reject this request if either: 4922c1b14e5Sjose borrego * - the target IS a directory and the client requires that 4932c1b14e5Sjose borrego * it must NOT be (required by Lotus Notes) 4942c1b14e5Sjose borrego * - the target is NOT a directory and client requires that 4952c1b14e5Sjose borrego * it MUST be. 496da6c28aaSamw */ 4979fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (smb_node_is_dir(node)) { 4982c1b14e5Sjose borrego if (op->create_options & FILE_NON_DIRECTORY_FILE) { 499da6c28aaSamw smb_node_release(node); 500da6c28aaSamw smb_node_release(dnode); 5017b59d02dSjb150015 return (NT_STATUS_FILE_IS_A_DIRECTORY); 502da6c28aaSamw } 5032c1b14e5Sjose borrego } else { 5042c1b14e5Sjose borrego if ((op->create_options & FILE_DIRECTORY_FILE) || 5052c2961f8Sjose borrego (op->nt_flags & NT_CREATE_FLAG_OPEN_TARGET_DIR)) { 506da6c28aaSamw smb_node_release(node); 507da6c28aaSamw smb_node_release(dnode); 5087b59d02dSjb150015 return (NT_STATUS_NOT_A_DIRECTORY); 509da6c28aaSamw } 5102c1b14e5Sjose borrego } 511da6c28aaSamw 512da6c28aaSamw /* 513da6c28aaSamw * No more open should be accepted when "Delete on close" 514da6c28aaSamw * flag is set. 515da6c28aaSamw */ 516da6c28aaSamw if (node->flags & NODE_FLAGS_DELETE_ON_CLOSE) { 517da6c28aaSamw smb_node_release(node); 518da6c28aaSamw smb_node_release(dnode); 5197b59d02dSjb150015 return (NT_STATUS_DELETE_PENDING); 520da6c28aaSamw } 521da6c28aaSamw 522da6c28aaSamw /* 523da6c28aaSamw * Specified file already exists so the operation should fail. 524da6c28aaSamw */ 525da6c28aaSamw if (op->create_disposition == FILE_CREATE) { 526da6c28aaSamw smb_node_release(node); 527da6c28aaSamw smb_node_release(dnode); 5287b59d02dSjb150015 return (NT_STATUS_OBJECT_NAME_COLLISION); 529da6c28aaSamw } 530da6c28aaSamw 531da6c28aaSamw /* 532da6c28aaSamw * Windows seems to check read-only access before file 533da6c28aaSamw * sharing check. 534c8ec8eeaSjose borrego * 535c8ec8eeaSjose borrego * Check to see if the file is currently readonly (irrespective 536c8ec8eeaSjose borrego * of whether this open will make it readonly). 537da6c28aaSamw */ 538c8ec8eeaSjose borrego if (SMB_PATHFILE_IS_READONLY(sr, node)) { 539da6c28aaSamw /* Files data only */ 540037cac00Sjoyce mcintosh if (!smb_node_is_dir(node)) { 541da6c28aaSamw if (op->desired_access & (FILE_WRITE_DATA | 542da6c28aaSamw FILE_APPEND_DATA)) { 543da6c28aaSamw smb_node_release(node); 544da6c28aaSamw smb_node_release(dnode); 5457b59d02dSjb150015 return (NT_STATUS_ACCESS_DENIED); 546da6c28aaSamw } 547da6c28aaSamw } 548da6c28aaSamw } 549da6c28aaSamw 550dc20a302Sas200622 if ((op->create_disposition == FILE_SUPERSEDE) || 551dc20a302Sas200622 (op->create_disposition == FILE_OVERWRITE_IF) || 552dc20a302Sas200622 (op->create_disposition == FILE_OVERWRITE)) { 553dc20a302Sas200622 554fb699f1eSAlek Pinchuk if (!smb_sattr_check(op->fqi.fq_fattr.sa_dosattr, 555fb699f1eSAlek Pinchuk op->dattr)) { 556dc20a302Sas200622 smb_node_release(node); 557dc20a302Sas200622 smb_node_release(dnode); 5587b59d02dSjb150015 return (NT_STATUS_ACCESS_DENIED); 559dc20a302Sas200622 } 560dc20a302Sas200622 561fb699f1eSAlek Pinchuk if (smb_node_is_dir(node)) { 562da6c28aaSamw smb_node_release(node); 563da6c28aaSamw smb_node_release(dnode); 564fb699f1eSAlek Pinchuk return (NT_STATUS_ACCESS_DENIED); 565da6c28aaSamw } 566fb699f1eSAlek Pinchuk } 567fb699f1eSAlek Pinchuk 568fb699f1eSAlek Pinchuk /* MS-FSA 2.1.5.1.2 */ 569fb699f1eSAlek Pinchuk if (op->create_disposition == FILE_SUPERSEDE) 570fb699f1eSAlek Pinchuk op->desired_access |= DELETE; 571fb699f1eSAlek Pinchuk if ((op->create_disposition == FILE_OVERWRITE_IF) || 572fb699f1eSAlek Pinchuk (op->create_disposition == FILE_OVERWRITE)) 573fb699f1eSAlek Pinchuk op->desired_access |= FILE_WRITE_DATA; 574da6c28aaSamw 575da6c28aaSamw status = smb_fsop_access(sr, sr->user_cr, node, 576da6c28aaSamw op->desired_access); 577da6c28aaSamw if (status != NT_STATUS_SUCCESS) { 578da6c28aaSamw smb_node_release(node); 579da6c28aaSamw smb_node_release(dnode); 580dc20a302Sas200622 581*a90cf9f2SGordon Ross /* SMB1 specific? NT_STATUS_PRIVILEGE_NOT_HELD */ 582da6c28aaSamw if (status == NT_STATUS_PRIVILEGE_NOT_HELD) { 5837b59d02dSjb150015 return (status); 584da6c28aaSamw } else { 5857b59d02dSjb150015 return (NT_STATUS_ACCESS_DENIED); 586da6c28aaSamw } 587da6c28aaSamw } 588da6c28aaSamw 589fb699f1eSAlek Pinchuk if (max_requested) { 590fb699f1eSAlek Pinchuk smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed); 591fb699f1eSAlek Pinchuk op->desired_access |= max_allowed; 592fb699f1eSAlek Pinchuk } 593*a90cf9f2SGordon Ross /* 594*a90cf9f2SGordon Ross * According to MS "dochelp" mail in Mar 2015, any handle 595*a90cf9f2SGordon Ross * on which read or write access is granted implicitly 596*a90cf9f2SGordon Ross * gets "read attributes", even if it was not requested. 597*a90cf9f2SGordon Ross * This avoids unexpected access failures later that 598*a90cf9f2SGordon Ross * would happen if these were not granted. 599*a90cf9f2SGordon Ross */ 600*a90cf9f2SGordon Ross if ((op->desired_access & FILE_DATA_ALL) != 0) { 601*a90cf9f2SGordon Ross op->desired_access |= (READ_CONTROL | 602*a90cf9f2SGordon Ross FILE_READ_ATTRIBUTES); 603*a90cf9f2SGordon Ross } 604fb699f1eSAlek Pinchuk 605fb699f1eSAlek Pinchuk /* 606fb699f1eSAlek Pinchuk * Oplock break is done prior to sharing checks as the break 607fb699f1eSAlek Pinchuk * may cause other clients to close the file which would 608fb699f1eSAlek Pinchuk * affect the sharing checks. This may block, so set the 609fb699f1eSAlek Pinchuk * file opening count before oplock stuff. 610fb699f1eSAlek Pinchuk */ 611fb699f1eSAlek Pinchuk smb_node_inc_opening_count(node); 612fb699f1eSAlek Pinchuk smb_open_oplock_break(sr, node); 613fb699f1eSAlek Pinchuk 614fb699f1eSAlek Pinchuk smb_node_wrlock(node); 615fb699f1eSAlek Pinchuk 616fb699f1eSAlek Pinchuk /* 617fb699f1eSAlek Pinchuk * Check for sharing violations 618fb699f1eSAlek Pinchuk */ 619fb699f1eSAlek Pinchuk status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid, 620fb699f1eSAlek Pinchuk op->desired_access, op->share_access); 621fb699f1eSAlek Pinchuk if (status == NT_STATUS_SHARING_VIOLATION) { 6222c2961f8Sjose borrego smb_node_unlock(node); 623cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 624da6c28aaSamw smb_node_release(node); 625da6c28aaSamw smb_node_release(dnode); 626fb699f1eSAlek Pinchuk return (status); 627da6c28aaSamw } 628da6c28aaSamw 629fb699f1eSAlek Pinchuk /* 630fb699f1eSAlek Pinchuk * Go ahead with modifications as necessary. 631fb699f1eSAlek Pinchuk */ 632fb699f1eSAlek Pinchuk switch (op->create_disposition) { 633fb699f1eSAlek Pinchuk case FILE_SUPERSEDE: 634fb699f1eSAlek Pinchuk case FILE_OVERWRITE_IF: 635fb699f1eSAlek Pinchuk case FILE_OVERWRITE: 636037cac00Sjoyce mcintosh op->dattr |= FILE_ATTRIBUTE_ARCHIVE; 637037cac00Sjoyce mcintosh /* Don't apply readonly bit until smb_ofile_close */ 638037cac00Sjoyce mcintosh if (op->dattr & FILE_ATTRIBUTE_READONLY) { 639037cac00Sjoyce mcintosh op->created_readonly = B_TRUE; 640037cac00Sjoyce mcintosh op->dattr &= ~FILE_ATTRIBUTE_READONLY; 641037cac00Sjoyce mcintosh } 642037cac00Sjoyce mcintosh 643*a90cf9f2SGordon Ross /* 644*a90cf9f2SGordon Ross * Truncate the file data here. 645*a90cf9f2SGordon Ross * We set alloc_size = op->dsize later, 646*a90cf9f2SGordon Ross * after we have an ofile. See: 647*a90cf9f2SGordon Ross * smb_set_open_attributes 648*a90cf9f2SGordon Ross */ 649dc20a302Sas200622 bzero(&new_attr, sizeof (new_attr)); 650037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 651*a90cf9f2SGordon Ross new_attr.sa_vattr.va_size = 0; 652037cac00Sjoyce mcintosh new_attr.sa_mask = SMB_AT_DOSATTR | SMB_AT_SIZE; 653037cac00Sjoyce mcintosh rc = smb_fsop_setattr(sr, sr->user_cr, node, &new_attr); 654037cac00Sjoyce mcintosh if (rc != 0) { 655037cac00Sjoyce mcintosh smb_fsop_unshrlock(sr->user_cr, node, uniq_fid); 6562c2961f8Sjose borrego smb_node_unlock(node); 657cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 658da6c28aaSamw smb_node_release(node); 659da6c28aaSamw smb_node_release(dnode); 660*a90cf9f2SGordon Ross return (smb_errno2status(rc)); 661da6c28aaSamw } 662da6c28aaSamw 663da6c28aaSamw /* 664037cac00Sjoyce mcintosh * If file is being replaced, remove existing streams 665da6c28aaSamw */ 666eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_IS_STREAM(node) == 0) { 667*a90cf9f2SGordon Ross status = smb_fsop_remove_streams(sr, 668*a90cf9f2SGordon Ross sr->user_cr, node); 669*a90cf9f2SGordon Ross if (status != 0) { 670eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_fsop_unshrlock(sr->user_cr, node, 671eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States uniq_fid); 672eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(node); 673cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 674eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 675eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 676*a90cf9f2SGordon Ross return (status); 677eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 678eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 679da6c28aaSamw 680da6c28aaSamw op->action_taken = SMB_OACT_TRUNCATED; 681da6c28aaSamw break; 682da6c28aaSamw 683da6c28aaSamw default: 684da6c28aaSamw /* 685da6c28aaSamw * FILE_OPEN or FILE_OPEN_IF. 686da6c28aaSamw */ 687*a90cf9f2SGordon Ross /* 688*a90cf9f2SGordon Ross * Ignore any user-specified alloc_size for 689*a90cf9f2SGordon Ross * existing files, to avoid truncation in 690*a90cf9f2SGordon Ross * smb_set_open_attributes 691*a90cf9f2SGordon Ross */ 692*a90cf9f2SGordon Ross op->dsize = 0L; 693da6c28aaSamw op->action_taken = SMB_OACT_OPENED; 694da6c28aaSamw break; 695da6c28aaSamw } 696da6c28aaSamw } else { 697da6c28aaSamw /* Last component was not found. */ 698eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States dnode = op->fqi.fq_dnode; 699da6c28aaSamw 7007b59d02dSjb150015 if (is_dir == 0) 701eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States is_stream = smb_is_stream_name(pn->pn_path); 7027b59d02dSjb150015 703da6c28aaSamw if ((op->create_disposition == FILE_OPEN) || 704da6c28aaSamw (op->create_disposition == FILE_OVERWRITE)) { 705da6c28aaSamw smb_node_release(dnode); 7067b59d02dSjb150015 return (NT_STATUS_OBJECT_NAME_NOT_FOUND); 707da6c28aaSamw } 708da6c28aaSamw 7099fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (pn->pn_fname && smb_is_invalid_filename(pn->pn_fname)) { 7102c2961f8Sjose borrego smb_node_release(dnode); 7112c2961f8Sjose borrego return (NT_STATUS_OBJECT_NAME_INVALID); 7122c2961f8Sjose borrego } 7132c2961f8Sjose borrego 714da6c28aaSamw /* 715da6c28aaSamw * lock the parent dir node in case another create 716da6c28aaSamw * request to the same parent directory comes in. 717da6c28aaSamw */ 7182c2961f8Sjose borrego smb_node_wrlock(dnode); 719da6c28aaSamw 720037cac00Sjoyce mcintosh /* Don't apply readonly bit until smb_ofile_close */ 721037cac00Sjoyce mcintosh if (op->dattr & FILE_ATTRIBUTE_READONLY) { 722037cac00Sjoyce mcintosh op->dattr &= ~FILE_ATTRIBUTE_READONLY; 723037cac00Sjoyce mcintosh op->created_readonly = B_TRUE; 724037cac00Sjoyce mcintosh } 725037cac00Sjoyce mcintosh 726da6c28aaSamw bzero(&new_attr, sizeof (new_attr)); 727c8ec8eeaSjose borrego if ((op->crtime.tv_sec != 0) && 728c8ec8eeaSjose borrego (op->crtime.tv_sec != UINT_MAX)) { 729c8ec8eeaSjose borrego 730c8ec8eeaSjose borrego new_attr.sa_mask |= SMB_AT_CRTIME; 731c8ec8eeaSjose borrego new_attr.sa_crtime = op->crtime; 732c8ec8eeaSjose borrego } 733c8ec8eeaSjose borrego 734da6c28aaSamw if (is_dir == 0) { 735037cac00Sjoyce mcintosh op->dattr |= FILE_ATTRIBUTE_ARCHIVE; 736037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 737da6c28aaSamw new_attr.sa_vattr.va_type = VREG; 7387b59d02dSjb150015 new_attr.sa_vattr.va_mode = is_stream ? S_IRUSR : 7397b59d02dSjb150015 S_IRUSR | S_IRGRP | S_IROTH | 7407b59d02dSjb150015 S_IWUSR | S_IWGRP | S_IWOTH; 741037cac00Sjoyce mcintosh new_attr.sa_mask |= 742037cac00Sjoyce mcintosh SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE; 743dc20a302Sas200622 744*a90cf9f2SGordon Ross /* 745*a90cf9f2SGordon Ross * We set alloc_size = op->dsize later, 746*a90cf9f2SGordon Ross * after we have an ofile. See: 747*a90cf9f2SGordon Ross * smb_set_open_attributes 748*a90cf9f2SGordon Ross */ 749dc20a302Sas200622 750da6c28aaSamw rc = smb_fsop_create(sr, sr->user_cr, dnode, 751037cac00Sjoyce mcintosh op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode); 752dc20a302Sas200622 753da6c28aaSamw if (rc != 0) { 7542c2961f8Sjose borrego smb_node_unlock(dnode); 755da6c28aaSamw smb_node_release(dnode); 756*a90cf9f2SGordon Ross return (smb_errno2status(rc)); 757da6c28aaSamw } 758da6c28aaSamw 759eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 760cb174861Sjoyce mcintosh smb_node_inc_opening_count(node); 7612c2961f8Sjose borrego smb_node_wrlock(node); 762dc20a302Sas200622 763faa1795aSjb150015 status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid, 764c8ec8eeaSjose borrego op->desired_access, op->share_access); 765dc20a302Sas200622 766dc20a302Sas200622 if (status == NT_STATUS_SHARING_VIOLATION) { 7672c2961f8Sjose borrego smb_node_unlock(node); 768cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 7698b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_delete_new_object(sr); 770dc20a302Sas200622 smb_node_release(node); 7712c2961f8Sjose borrego smb_node_unlock(dnode); 772dc20a302Sas200622 smb_node_release(dnode); 773dc20a302Sas200622 return (status); 774dc20a302Sas200622 } 775da6c28aaSamw } else { 7763db3f65cSamw op->dattr |= FILE_ATTRIBUTE_DIRECTORY; 777037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 778da6c28aaSamw new_attr.sa_vattr.va_type = VDIR; 779da6c28aaSamw new_attr.sa_vattr.va_mode = 0777; 780037cac00Sjoyce mcintosh new_attr.sa_mask |= 781037cac00Sjoyce mcintosh SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE; 782c8ec8eeaSjose borrego 783da6c28aaSamw rc = smb_fsop_mkdir(sr, sr->user_cr, dnode, 784037cac00Sjoyce mcintosh op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode); 785da6c28aaSamw if (rc != 0) { 7862c2961f8Sjose borrego smb_node_unlock(dnode); 787da6c28aaSamw smb_node_release(dnode); 788*a90cf9f2SGordon Ross return (smb_errno2status(rc)); 789da6c28aaSamw } 790dc20a302Sas200622 791eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 792cb174861Sjoyce mcintosh smb_node_inc_opening_count(node); 7932c2961f8Sjose borrego smb_node_wrlock(node); 794da6c28aaSamw } 795da6c28aaSamw 796eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States created = B_TRUE; 797da6c28aaSamw op->action_taken = SMB_OACT_CREATED; 798c8ec8eeaSjose borrego 7992c1b14e5Sjose borrego if (max_requested) { 8002c1b14e5Sjose borrego smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed); 8012c1b14e5Sjose borrego op->desired_access |= max_allowed; 8022c1b14e5Sjose borrego } 803*a90cf9f2SGordon Ross /* 804*a90cf9f2SGordon Ross * We created created this object (we own it) so 805*a90cf9f2SGordon Ross * grant read/write attributes on this handle, 806*a90cf9f2SGordon Ross * even if that was not requested. This avoids 807*a90cf9f2SGordon Ross * unexpected access failures later that would 808*a90cf9f2SGordon Ross * happen if these were not granted. 809*a90cf9f2SGordon Ross */ 810*a90cf9f2SGordon Ross op->desired_access |= (READ_CONTROL | 811*a90cf9f2SGordon Ross FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES); 812fb699f1eSAlek Pinchuk } 8132c1b14e5Sjose borrego 814037cac00Sjoyce mcintosh status = NT_STATUS_SUCCESS; 8152c1b14e5Sjose borrego 81668b2bbf2SGordon Ross of = smb_ofile_open(sr, node, op, SMB_FTYPE_DISK, uniq_fid, 8173b13a1efSThomas Keiser &err); 818da6c28aaSamw if (of == NULL) { 819037cac00Sjoyce mcintosh status = err.status; 820da6c28aaSamw } 821da6c28aaSamw 82268b2bbf2SGordon Ross /* 82368b2bbf2SGordon Ross * We might have blocked in smb_ofile_open long enough so a 82468b2bbf2SGordon Ross * tree disconnect might have happened. In that case, we've 82568b2bbf2SGordon Ross * just added an ofile to a tree that's disconnecting, and 82668b2bbf2SGordon Ross * need to undo that to avoid interfering with tear-down of 82768b2bbf2SGordon Ross * the tree connection. 82868b2bbf2SGordon Ross */ 82968b2bbf2SGordon Ross if (status == NT_STATUS_SUCCESS && 83068b2bbf2SGordon Ross !smb_tree_is_connected(sr->tid_tree)) { 83168b2bbf2SGordon Ross status = NT_STATUS_INVALID_PARAMETER; 832037cac00Sjoyce mcintosh } 833037cac00Sjoyce mcintosh 834037cac00Sjoyce mcintosh /* 835037cac00Sjoyce mcintosh * This MUST be done after ofile creation, so that explicitly 8365fd03bc0SGordon Ross * set timestamps can be remembered on the ofile, and the 8375fd03bc0SGordon Ross * readonly flag will be stored "pending" on the node. 838037cac00Sjoyce mcintosh */ 839037cac00Sjoyce mcintosh if (status == NT_STATUS_SUCCESS) { 8405fd03bc0SGordon Ross if ((rc = smb_set_open_attributes(sr, of)) != 0) { 841*a90cf9f2SGordon Ross status = smb_errno2status(rc); 842037cac00Sjoyce mcintosh } 843037cac00Sjoyce mcintosh } 844037cac00Sjoyce mcintosh 845037cac00Sjoyce mcintosh if (status == NT_STATUS_SUCCESS) { 8465fd03bc0SGordon Ross /* 8475fd03bc0SGordon Ross * We've already done access checks above, 8485fd03bc0SGordon Ross * and want this call to succeed even when 8495fd03bc0SGordon Ross * !(desired_access & FILE_READ_ATTRIBUTES), 8505fd03bc0SGordon Ross * so pass kcred here. 8515fd03bc0SGordon Ross */ 8525fd03bc0SGordon Ross op->fqi.fq_fattr.sa_mask = SMB_AT_ALL; 8538622ec45SGordon Ross rc = smb_node_getattr(sr, node, zone_kcred(), of, 8545fd03bc0SGordon Ross &op->fqi.fq_fattr); 8555fd03bc0SGordon Ross if (rc != 0) { 856037cac00Sjoyce mcintosh status = NT_STATUS_INTERNAL_ERROR; 857037cac00Sjoyce mcintosh } 858037cac00Sjoyce mcintosh } 859037cac00Sjoyce mcintosh 860037cac00Sjoyce mcintosh /* 861037cac00Sjoyce mcintosh * smb_fsop_unshrlock is a no-op if node is a directory 862037cac00Sjoyce mcintosh * smb_fsop_unshrlock is done in smb_ofile_close 863037cac00Sjoyce mcintosh */ 864037cac00Sjoyce mcintosh if (status != NT_STATUS_SUCCESS) { 865037cac00Sjoyce mcintosh if (of == NULL) { 866037cac00Sjoyce mcintosh smb_fsop_unshrlock(sr->user_cr, node, uniq_fid); 867037cac00Sjoyce mcintosh } else { 8688b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_ofile_close(of, 0); 8698b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_ofile_release(of); 870037cac00Sjoyce mcintosh } 8718b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (created) 8728b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_delete_new_object(sr); 8738b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(node); 874cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 8758b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 8768b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (created) 8778b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(dnode); 8788b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 879037cac00Sjoyce mcintosh return (status); 8808b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States } 8818b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 8828c10a865Sas200622 /* 8838c10a865Sas200622 * Propagate the write-through mode from the open params 8848c10a865Sas200622 * to the node: see the notes in the function header. 8858c10a865Sas200622 */ 8868c10a865Sas200622 if (sr->sr_cfg->skc_sync_enable || 8878c10a865Sas200622 (op->create_options & FILE_WRITE_THROUGH)) 8888c10a865Sas200622 node->flags |= NODE_FLAGS_WRITE_THROUGH; 8898c10a865Sas200622 890037cac00Sjoyce mcintosh /* 891037cac00Sjoyce mcintosh * Set up the fileid and dosattr in open_param for response 892037cac00Sjoyce mcintosh */ 893eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fileid = op->fqi.fq_fattr.sa_vattr.va_nodeid; 894037cac00Sjoyce mcintosh op->dattr = op->fqi.fq_fattr.sa_dosattr; 8958c10a865Sas200622 896da6c28aaSamw /* 897da6c28aaSamw * Set up the file type in open_param for the response 898da6c28aaSamw */ 899da6c28aaSamw op->ftype = SMB_FTYPE_DISK; 900da6c28aaSamw sr->smb_fid = of->f_fid; 901da6c28aaSamw sr->fid_ofile = of; 902da6c28aaSamw 9039fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (smb_node_is_file(node)) { 904cb174861Sjoyce mcintosh smb_oplock_acquire(sr, node, of); 905eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->dsize = op->fqi.fq_fattr.sa_vattr.va_size; 9069fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States } else { 9079fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States /* directory or symlink */ 9082c2961f8Sjose borrego op->op_oplock_level = SMB_OPLOCK_NONE; 9092c2961f8Sjose borrego op->dsize = 0; 9102c2961f8Sjose borrego } 911dc20a302Sas200622 912cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 913cb174861Sjoyce mcintosh 914cb174861Sjoyce mcintosh smb_node_unlock(node); 915cb174861Sjoyce mcintosh if (created) 916cb174861Sjoyce mcintosh smb_node_unlock(dnode); 917cb174861Sjoyce mcintosh 9188b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 919da6c28aaSamw smb_node_release(dnode); 920da6c28aaSamw 921da6c28aaSamw return (NT_STATUS_SUCCESS); 922da6c28aaSamw } 923da6c28aaSamw 924da6c28aaSamw /* 925cb174861Sjoyce mcintosh * smb_open_oplock_break 926cb174861Sjoyce mcintosh * 927cb174861Sjoyce mcintosh * If the node has an ofile opened with share access none, 928cb174861Sjoyce mcintosh * (smb_node_share_check = FALSE) only break BATCH oplock. 929cb174861Sjoyce mcintosh * Otherwise: 930cb174861Sjoyce mcintosh * If overwriting, break to SMB_OPLOCK_NONE, else 931cb174861Sjoyce mcintosh * If opening for anything other than attribute access, 932cb174861Sjoyce mcintosh * break oplock to LEVEL_II. 933cb174861Sjoyce mcintosh */ 934cb174861Sjoyce mcintosh static void 935cb174861Sjoyce mcintosh smb_open_oplock_break(smb_request_t *sr, smb_node_t *node) 936cb174861Sjoyce mcintosh { 937cb174861Sjoyce mcintosh smb_arg_open_t *op = &sr->sr_open; 938cb174861Sjoyce mcintosh uint32_t flags = 0; 939cb174861Sjoyce mcintosh 940cb174861Sjoyce mcintosh if (!smb_node_share_check(node)) 941cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_BATCH; 942cb174861Sjoyce mcintosh 943cb174861Sjoyce mcintosh if (smb_open_overwrite(op)) { 944cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_TO_NONE; 945cb174861Sjoyce mcintosh (void) smb_oplock_break(sr, node, flags); 946cb174861Sjoyce mcintosh } else if (!smb_open_attr_only(op)) { 947cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_TO_LEVEL_II; 948cb174861Sjoyce mcintosh (void) smb_oplock_break(sr, node, flags); 949cb174861Sjoyce mcintosh } 950cb174861Sjoyce mcintosh } 951cb174861Sjoyce mcintosh 952cb174861Sjoyce mcintosh /* 953cb174861Sjoyce mcintosh * smb_open_attr_only 954cb174861Sjoyce mcintosh * 955cb174861Sjoyce mcintosh * Determine if file is being opened for attribute access only. 956cb174861Sjoyce mcintosh * This is used to determine whether it is necessary to break 957cb174861Sjoyce mcintosh * existing oplocks on the file. 958cb174861Sjoyce mcintosh */ 959cb174861Sjoyce mcintosh static boolean_t 960cb174861Sjoyce mcintosh smb_open_attr_only(smb_arg_open_t *op) 961cb174861Sjoyce mcintosh { 962cb174861Sjoyce mcintosh if (((op->desired_access & ~(FILE_READ_ATTRIBUTES | 963fb699f1eSAlek Pinchuk FILE_WRITE_ATTRIBUTES | SYNCHRONIZE | READ_CONTROL)) == 0) && 964cb174861Sjoyce mcintosh (op->create_disposition != FILE_SUPERSEDE) && 965cb174861Sjoyce mcintosh (op->create_disposition != FILE_OVERWRITE)) { 966cb174861Sjoyce mcintosh return (B_TRUE); 967cb174861Sjoyce mcintosh } 968cb174861Sjoyce mcintosh return (B_FALSE); 969cb174861Sjoyce mcintosh } 970cb174861Sjoyce mcintosh 971cb174861Sjoyce mcintosh static boolean_t 972cb174861Sjoyce mcintosh smb_open_overwrite(smb_arg_open_t *op) 973cb174861Sjoyce mcintosh { 974cb174861Sjoyce mcintosh if ((op->create_disposition == FILE_SUPERSEDE) || 975cb174861Sjoyce mcintosh (op->create_disposition == FILE_OVERWRITE_IF) || 976cb174861Sjoyce mcintosh (op->create_disposition == FILE_OVERWRITE)) { 977cb174861Sjoyce mcintosh return (B_TRUE); 978cb174861Sjoyce mcintosh } 979cb174861Sjoyce mcintosh return (B_FALSE); 980cb174861Sjoyce mcintosh } 9815fd03bc0SGordon Ross 982cb174861Sjoyce mcintosh /* 9835fd03bc0SGordon Ross * smb_set_open_attributes 984037cac00Sjoyce mcintosh * 985037cac00Sjoyce mcintosh * Last write time: 986037cac00Sjoyce mcintosh * - If the last_write time specified in the open params is not 0 or -1, 987037cac00Sjoyce mcintosh * use it as file's mtime. This will be considered an explicitly set 988037cac00Sjoyce mcintosh * timestamps, not reset by subsequent writes. 989037cac00Sjoyce mcintosh * 9905fd03bc0SGordon Ross * DOS attributes 9915fd03bc0SGordon Ross * - If we created_readonly, we now store the real DOS attributes 9925fd03bc0SGordon Ross * (including the readonly bit) so subsequent opens will see it. 993037cac00Sjoyce mcintosh * 9945fd03bc0SGordon Ross * Both are stored "pending" rather than in the file system. 995037cac00Sjoyce mcintosh * 996037cac00Sjoyce mcintosh * Returns: errno 997037cac00Sjoyce mcintosh */ 998037cac00Sjoyce mcintosh static int 9995fd03bc0SGordon Ross smb_set_open_attributes(smb_request_t *sr, smb_ofile_t *of) 1000037cac00Sjoyce mcintosh { 10015fd03bc0SGordon Ross smb_attr_t attr; 1002148c5f43SAlan Wright smb_arg_open_t *op = &sr->sr_open; 1003037cac00Sjoyce mcintosh smb_node_t *node = of->f_node; 10045fd03bc0SGordon Ross int rc = 0; 1005037cac00Sjoyce mcintosh 1006037cac00Sjoyce mcintosh bzero(&attr, sizeof (smb_attr_t)); 10075fd03bc0SGordon Ross 10085fd03bc0SGordon Ross if (op->created_readonly) { 10095fd03bc0SGordon Ross attr.sa_dosattr = op->dattr | FILE_ATTRIBUTE_READONLY; 10105fd03bc0SGordon Ross attr.sa_mask |= SMB_AT_DOSATTR; 10115fd03bc0SGordon Ross } 1012037cac00Sjoyce mcintosh 1013*a90cf9f2SGordon Ross if (op->dsize != 0) { 1014*a90cf9f2SGordon Ross attr.sa_allocsz = op->dsize; 1015*a90cf9f2SGordon Ross attr.sa_mask |= SMB_AT_ALLOCSZ; 1016*a90cf9f2SGordon Ross } 1017*a90cf9f2SGordon Ross 1018037cac00Sjoyce mcintosh if ((op->mtime.tv_sec != 0) && (op->mtime.tv_sec != UINT_MAX)) { 1019037cac00Sjoyce mcintosh attr.sa_vattr.va_mtime = op->mtime; 10205fd03bc0SGordon Ross attr.sa_mask |= SMB_AT_MTIME; 1021037cac00Sjoyce mcintosh } 1022037cac00Sjoyce mcintosh 10235fd03bc0SGordon Ross /* 10245fd03bc0SGordon Ross * Used to have code here to set mtime, ctime, atime 10255fd03bc0SGordon Ross * when the open op->create_disposition is any of: 10265fd03bc0SGordon Ross * FILE_SUPERSEDE, FILE_OVERWRITE_IF, FILE_OVERWRITE. 10275fd03bc0SGordon Ross * We know that in those cases we will have set the 10285fd03bc0SGordon Ross * file size, in which case the file system will 10295fd03bc0SGordon Ross * update those times, so we don't have to. 10305fd03bc0SGordon Ross * 10315fd03bc0SGordon Ross * However, keep track of the fact that we modified 10325fd03bc0SGordon Ross * the file via this handle, so we can do the evil, 10335fd03bc0SGordon Ross * gratuitious mtime update on close that Windows 10345fd03bc0SGordon Ross * clients appear to expect. 10355fd03bc0SGordon Ross */ 10365fd03bc0SGordon Ross if (op->action_taken == SMB_OACT_TRUNCATED) 10375fd03bc0SGordon Ross of->f_written = B_TRUE; 1038037cac00Sjoyce mcintosh 10395fd03bc0SGordon Ross if (attr.sa_mask != 0) 10405fd03bc0SGordon Ross rc = smb_node_setattr(sr, node, of->f_cr, of, &attr); 1041037cac00Sjoyce mcintosh 1042037cac00Sjoyce mcintosh return (rc); 1043037cac00Sjoyce mcintosh } 1044037cac00Sjoyce mcintosh 1045037cac00Sjoyce mcintosh /* 10468b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States * This function is used to delete a newly created object (file or 10478b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States * directory) if an error occurs after creation of the object. 1048da6c28aaSamw */ 10498b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States static void 10508b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_delete_new_object(smb_request_t *sr) 1051da6c28aaSamw { 1052148c5f43SAlan Wright smb_arg_open_t *op = &sr->sr_open; 10538b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_fqi_t *fqi = &(op->fqi); 10548b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States uint32_t flags = 0; 10558b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 10568b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_TREE_IS_CASEINSENSITIVE(sr)) 10578b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States flags |= SMB_IGNORE_CASE; 10588b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_TREE_SUPPORTS_CATIA(sr)) 10598b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States flags |= SMB_CATIA; 10608b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 10618b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (op->create_options & FILE_DIRECTORY_FILE) 1062eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States (void) smb_fsop_rmdir(sr, sr->user_cr, fqi->fq_dnode, 1063eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States fqi->fq_last_comp, flags); 10648b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States else 1065eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States (void) smb_fsop_remove(sr, sr->user_cr, fqi->fq_dnode, 1066eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States fqi->fq_last_comp, flags); 1067eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 1068