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. 245677e049SGordon Ross * Copyright 2017 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> 35dc20a302Sas #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 41*91ca6bffSGordon Ross int smb_session_ofile_max = 32768; 42*91ca6bffSGordon Ross 4368b2bbf2SGordon Ross static volatile uint32_t smb_fids = 0; 44b819cea2SGordon Ross #define SMB_UNIQ_FID() atomic_inc_32_nv(&smb_fids) 457b59d02dSjb 467b59d02dSjb static uint32_t smb_open_subr(smb_request_t *); 47faa1795aSjb extern uint32_t smb_is_executable(char *); 488b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States static void smb_delete_new_object(smb_request_t *); 495fd03bc0SGordon Ross static int smb_set_open_attributes(smb_request_t *, smb_ofile_t *); 50cb174861Sjoyce mcintosh static void smb_open_oplock_break(smb_request_t *, smb_node_t *); 51cb174861Sjoyce mcintosh static boolean_t smb_open_attr_only(smb_arg_open_t *); 52cb174861Sjoyce mcintosh static boolean_t smb_open_overwrite(smb_arg_open_t *); 53da6c28aaSamw 54da6c28aaSamw /* 55da6c28aaSamw * smb_access_generic_to_file 56da6c28aaSamw * 57da6c28aaSamw * Search MSDN for IoCreateFile to see following mapping. 58da6c28aaSamw * 59da6c28aaSamw * GENERIC_READ STANDARD_RIGHTS_READ, FILE_READ_DATA, 60da6c28aaSamw * FILE_READ_ATTRIBUTES and FILE_READ_EA 61da6c28aaSamw * 62da6c28aaSamw * GENERIC_WRITE STANDARD_RIGHTS_WRITE, FILE_WRITE_DATA, 63da6c28aaSamw * FILE_WRITE_ATTRIBUTES, FILE_WRITE_EA, and FILE_APPEND_DATA 64da6c28aaSamw * 65da6c28aaSamw * GENERIC_EXECUTE STANDARD_RIGHTS_EXECUTE, SYNCHRONIZE, and FILE_EXECUTE. 66da6c28aaSamw */ 67a90cf9f2SGordon Ross static uint32_t 68da6c28aaSamw smb_access_generic_to_file(uint32_t desired_access) 69da6c28aaSamw { 70a90cf9f2SGordon Ross uint32_t access = 0; 71da6c28aaSamw 72da6c28aaSamw if (desired_access & GENERIC_ALL) 73da6c28aaSamw return (FILE_ALL_ACCESS & ~SYNCHRONIZE); 74da6c28aaSamw 75da6c28aaSamw if (desired_access & GENERIC_EXECUTE) { 76da6c28aaSamw desired_access &= ~GENERIC_EXECUTE; 77da6c28aaSamw access |= (STANDARD_RIGHTS_EXECUTE | 78da6c28aaSamw SYNCHRONIZE | FILE_EXECUTE); 79da6c28aaSamw } 80da6c28aaSamw 81da6c28aaSamw if (desired_access & GENERIC_WRITE) { 82da6c28aaSamw desired_access &= ~GENERIC_WRITE; 83da6c28aaSamw access |= (FILE_GENERIC_WRITE & ~SYNCHRONIZE); 84da6c28aaSamw } 85da6c28aaSamw 86da6c28aaSamw if (desired_access & GENERIC_READ) { 87da6c28aaSamw desired_access &= ~GENERIC_READ; 88da6c28aaSamw access |= FILE_GENERIC_READ; 89da6c28aaSamw } 90da6c28aaSamw 91da6c28aaSamw return (access | desired_access); 92da6c28aaSamw } 93da6c28aaSamw 94da6c28aaSamw /* 95da6c28aaSamw * smb_omode_to_amask 96da6c28aaSamw * 97da6c28aaSamw * This function converts open modes used by Open and Open AndX 98da6c28aaSamw * commands to desired access bits used by NT Create AndX command. 99da6c28aaSamw */ 100da6c28aaSamw uint32_t 101da6c28aaSamw smb_omode_to_amask(uint32_t desired_access) 102da6c28aaSamw { 103da6c28aaSamw switch (desired_access & SMB_DA_ACCESS_MASK) { 104da6c28aaSamw case SMB_DA_ACCESS_READ: 105da6c28aaSamw return (FILE_GENERIC_READ); 106da6c28aaSamw 107da6c28aaSamw case SMB_DA_ACCESS_WRITE: 108da6c28aaSamw return (FILE_GENERIC_WRITE); 109da6c28aaSamw 110da6c28aaSamw case SMB_DA_ACCESS_READ_WRITE: 111da6c28aaSamw return (FILE_GENERIC_READ | FILE_GENERIC_WRITE); 112da6c28aaSamw 113da6c28aaSamw case SMB_DA_ACCESS_EXECUTE: 114c5f48fa5SGordon Ross return (FILE_GENERIC_READ | FILE_GENERIC_EXECUTE); 115da6c28aaSamw 1162c2961f8Sjose borrego default: 1172c2961f8Sjose borrego return (FILE_GENERIC_ALL); 1182c2961f8Sjose borrego } 119da6c28aaSamw } 120da6c28aaSamw 121da6c28aaSamw /* 122da6c28aaSamw * smb_denymode_to_sharemode 123da6c28aaSamw * 124da6c28aaSamw * This function converts deny modes used by Open and Open AndX 125da6c28aaSamw * commands to share access bits used by NT Create AndX command. 126da6c28aaSamw */ 127da6c28aaSamw uint32_t 128da6c28aaSamw smb_denymode_to_sharemode(uint32_t desired_access, char *fname) 129da6c28aaSamw { 130da6c28aaSamw switch (desired_access & SMB_DA_SHARE_MASK) { 131da6c28aaSamw case SMB_DA_SHARE_COMPATIBILITY: 132da6c28aaSamw if (smb_is_executable(fname)) 133da6c28aaSamw return (FILE_SHARE_READ | FILE_SHARE_WRITE); 134c8ec8eeaSjose borrego 135c8ec8eeaSjose borrego return (FILE_SHARE_ALL); 136da6c28aaSamw 137da6c28aaSamw case SMB_DA_SHARE_EXCLUSIVE: 138da6c28aaSamw return (FILE_SHARE_NONE); 139da6c28aaSamw 140da6c28aaSamw case SMB_DA_SHARE_DENY_WRITE: 141da6c28aaSamw return (FILE_SHARE_READ); 142da6c28aaSamw 143da6c28aaSamw case SMB_DA_SHARE_DENY_READ: 144da6c28aaSamw return (FILE_SHARE_WRITE); 145da6c28aaSamw 146da6c28aaSamw case SMB_DA_SHARE_DENY_NONE: 1472c2961f8Sjose borrego default: 148da6c28aaSamw return (FILE_SHARE_READ | FILE_SHARE_WRITE); 149da6c28aaSamw } 150da6c28aaSamw } 151da6c28aaSamw 152da6c28aaSamw /* 153da6c28aaSamw * smb_ofun_to_crdisposition 154da6c28aaSamw * 155da6c28aaSamw * This function converts open function values used by Open and Open AndX 156da6c28aaSamw * commands to create disposition values used by NT Create AndX command. 157da6c28aaSamw */ 158da6c28aaSamw uint32_t 159da6c28aaSamw smb_ofun_to_crdisposition(uint16_t ofun) 160da6c28aaSamw { 161da6c28aaSamw static int ofun_cr_map[3][2] = 162da6c28aaSamw { 163da6c28aaSamw { -1, FILE_CREATE }, 164da6c28aaSamw { FILE_OPEN, FILE_OPEN_IF }, 165da6c28aaSamw { FILE_OVERWRITE, FILE_OVERWRITE_IF } 166da6c28aaSamw }; 167da6c28aaSamw 168da6c28aaSamw int row = ofun & SMB_OFUN_OPEN_MASK; 169da6c28aaSamw int col = (ofun & SMB_OFUN_CREATE_MASK) >> 4; 170da6c28aaSamw 171da6c28aaSamw if (row == 3) 1722c2961f8Sjose borrego return (FILE_MAXIMUM_DISPOSITION + 1); 173da6c28aaSamw 174da6c28aaSamw return (ofun_cr_map[row][col]); 175da6c28aaSamw } 176da6c28aaSamw 1777b59d02dSjb /* 1787b59d02dSjb * Retry opens to avoid spurious sharing violations, due to timing 1797b59d02dSjb * issues between closes and opens. The client that already has the 1807b59d02dSjb * file open may be in the process of closing it. 1817b59d02dSjb */ 1827b59d02dSjb uint32_t 1837b59d02dSjb smb_common_open(smb_request_t *sr) 1847b59d02dSjb { 185148c5f43SAlan Wright smb_arg_open_t *parg; 186bbf6f00cSJordan Brown uint32_t status = NT_STATUS_SUCCESS; 187bbf6f00cSJordan Brown int count; 188bbf6f00cSJordan Brown 189bbf6f00cSJordan Brown parg = kmem_alloc(sizeof (*parg), KM_SLEEP); 190bbf6f00cSJordan Brown bcopy(&sr->arg.open, parg, sizeof (*parg)); 1917b59d02dSjb 1927b59d02dSjb for (count = 0; count <= 4; count++) { 193bbf6f00cSJordan Brown if (count != 0) 1947b59d02dSjb delay(MSEC_TO_TICK(400)); 1957b59d02dSjb 196faa1795aSjb status = smb_open_subr(sr); 197faa1795aSjb if (status != NT_STATUS_SHARING_VIOLATION) 1987b59d02dSjb break; 199bbf6f00cSJordan Brown 200bbf6f00cSJordan Brown bcopy(parg, &sr->arg.open, sizeof (*parg)); 2017b59d02dSjb } 2027b59d02dSjb 203a90cf9f2SGordon Ross if (status == NT_STATUS_NO_SUCH_FILE) 204a90cf9f2SGordon Ross status = NT_STATUS_OBJECT_NAME_NOT_FOUND; 2052c2961f8Sjose borrego 206bbf6f00cSJordan Brown kmem_free(parg, sizeof (*parg)); 2077b59d02dSjb return (status); 2087b59d02dSjb } 2097b59d02dSjb 210da6c28aaSamw /* 211da6c28aaSamw * smb_open_subr 212da6c28aaSamw * 213da6c28aaSamw * Notes on write-through behaviour. It looks like pre-LM0.12 versions 214da6c28aaSamw * of the protocol specify the write-through mode when a file is opened, 215da6c28aaSamw * (SmbOpen, SmbOpenAndX) so the write calls (SmbWrite, SmbWriteAndClose, 216da6c28aaSamw * SmbWriteAndUnlock) don't need to contain a write-through flag. 217da6c28aaSamw * 218da6c28aaSamw * With LM0.12, the open calls (SmbCreateAndX, SmbNtTransactCreate) 219da6c28aaSamw * don't indicate which write-through mode to use. Instead the write 220da6c28aaSamw * calls (SmbWriteAndX, SmbWriteRaw) specify the mode on a per call 221da6c28aaSamw * basis. 222da6c28aaSamw * 223da6c28aaSamw * We don't care which open call was used to get us here, we just need 224da6c28aaSamw * to ensure that the write-through mode flag is copied from the open 225da6c28aaSamw * parameters to the node. We test the omode write-through flag in all 226da6c28aaSamw * write functions. 227da6c28aaSamw * 228a90cf9f2SGordon Ross * This function returns NT status codes. 2298c10a865Sas * 2308c10a865Sas * The following rules apply when processing a file open request: 2318c10a865Sas * 232cb174861Sjoyce mcintosh * - Oplocks must be broken prior to share checking as the break may 233cb174861Sjoyce mcintosh * cause other clients to close the file, which would affect sharing 234cb174861Sjoyce mcintosh * checks. 2358c10a865Sas * 2368c10a865Sas * - Share checks must take place prior to access checks for correct 2378c10a865Sas * Windows semantics and to prevent unnecessary NFS delegation recalls. 2388c10a865Sas * 2398c10a865Sas * - Oplocks must be acquired after open to ensure the correct 2408c10a865Sas * synchronization with NFS delegation and FEM installation. 241c8ec8eeaSjose borrego * 242c8ec8eeaSjose borrego * DOS readonly bit rules 243c8ec8eeaSjose borrego * 244c8ec8eeaSjose borrego * 1. The creator of a readonly file can write to/modify the size of the file 245c8ec8eeaSjose borrego * using the original create fid, even though the file will appear as readonly 246c8ec8eeaSjose borrego * to all other fids and via a CIFS getattr call. 247037cac00Sjoyce mcintosh * The readonly bit therefore cannot be set in the filesystem until the file 248037cac00Sjoyce mcintosh * is closed (smb_ofile_close). It is accounted for via ofile and node flags. 249c8ec8eeaSjose borrego * 250c8ec8eeaSjose borrego * 2. A setinfo operation (using either an open fid or a path) to set/unset 251c8ec8eeaSjose borrego * readonly will be successful regardless of whether a creator of a readonly 252c8ec8eeaSjose borrego * file has an open fid (and has the special privilege mentioned in #1, 253c8ec8eeaSjose borrego * above). I.e., the creator of a readonly fid holding that fid will no longer 254c8ec8eeaSjose borrego * have a special privilege. 255c8ec8eeaSjose borrego * 256c8ec8eeaSjose borrego * 3. The DOS readonly bit affects only data and some metadata. 257c8ec8eeaSjose borrego * The following metadata can be changed regardless of the readonly bit: 258c8ec8eeaSjose borrego * - security descriptors 259c8ec8eeaSjose borrego * - DOS attributes 260c8ec8eeaSjose borrego * - timestamps 261c8ec8eeaSjose borrego * 262c8ec8eeaSjose borrego * In the current implementation, the file size cannot be changed (except for 263c8ec8eeaSjose borrego * the exceptions in #1 and #2, above). 2642c1b14e5Sjose borrego * 2652c1b14e5Sjose borrego * 2662c1b14e5Sjose borrego * DOS attribute rules 2672c1b14e5Sjose borrego * 2682c1b14e5Sjose borrego * These rules are specific to creating / opening files and directories. 2692c1b14e5Sjose borrego * How the attribute value (specifically ZERO or FILE_ATTRIBUTE_NORMAL) 2702c1b14e5Sjose borrego * should be interpreted may differ in other requests. 2712c1b14e5Sjose borrego * 2722c1b14e5Sjose borrego * - An attribute value equal to ZERO or FILE_ATTRIBUTE_NORMAL means that the 2732c1b14e5Sjose borrego * file's attributes should be cleared. 2742c1b14e5Sjose borrego * - If FILE_ATTRIBUTE_NORMAL is specified with any other attributes, 2752c1b14e5Sjose borrego * FILE_ATTRIBUTE_NORMAL is ignored. 2762c1b14e5Sjose borrego * 2772c1b14e5Sjose borrego * 1. Creating a new file 2782c1b14e5Sjose borrego * - The request attributes + FILE_ATTRIBUTE_ARCHIVE are applied to the file. 2792c1b14e5Sjose borrego * 2802c1b14e5Sjose borrego * 2. Creating a new directory 2812c1b14e5Sjose borrego * - The request attributes + FILE_ATTRIBUTE_DIRECTORY are applied to the file. 2822c1b14e5Sjose borrego * - FILE_ATTRIBUTE_ARCHIVE does not get set. 2832c1b14e5Sjose borrego * 2842c1b14e5Sjose borrego * 3. Overwriting an existing file 2852c1b14e5Sjose borrego * - the request attributes are used as search attributes. If the existing 2862c1b14e5Sjose borrego * file does not meet the search criteria access is denied. 2872c1b14e5Sjose borrego * - otherwise, applies attributes + FILE_ATTRIBUTE_ARCHIVE. 2882c1b14e5Sjose borrego * 2892c1b14e5Sjose borrego * 4. Opening an existing file or directory 2902c1b14e5Sjose borrego * The request attributes are ignored. 291da6c28aaSamw */ 2927b59d02dSjb static uint32_t 2937b59d02dSjb smb_open_subr(smb_request_t *sr) 294da6c28aaSamw { 295eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States boolean_t created = B_FALSE; 296eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States boolean_t last_comp_found = B_FALSE; 2972c2961f8Sjose borrego smb_node_t *node = NULL; 2982c2961f8Sjose borrego smb_node_t *dnode = NULL; 299eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_t *cur_node = NULL; 300148c5f43SAlan Wright smb_arg_open_t *op = &sr->sr_open; 3012c2961f8Sjose borrego int rc; 3022c2961f8Sjose borrego smb_ofile_t *of; 3032c2961f8Sjose borrego smb_attr_t new_attr; 3042c2961f8Sjose borrego int max_requested = 0; 3052c2961f8Sjose borrego uint32_t max_allowed; 3062c2961f8Sjose borrego uint32_t status = NT_STATUS_SUCCESS; 3072c2961f8Sjose borrego int is_dir; 3082c2961f8Sjose borrego smb_error_t err; 3092c2961f8Sjose borrego boolean_t is_stream = B_FALSE; 3102c2961f8Sjose borrego int lookup_flags = SMB_FOLLOW_LINKS; 3112c2961f8Sjose borrego uint32_t uniq_fid; 312eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_pathname_t *pn = &op->fqi.fq_path; 313cb174861Sjoyce mcintosh smb_server_t *sv = sr->sr_server; 314da6c28aaSamw 3155677e049SGordon Ross /* Get out now if we've been cancelled. */ 3165677e049SGordon Ross mutex_enter(&sr->sr_mutex); 3175677e049SGordon Ross if (sr->sr_state != SMB_REQ_STATE_ACTIVE) { 3185677e049SGordon Ross mutex_exit(&sr->sr_mutex); 3195677e049SGordon Ross return (NT_STATUS_CANCELLED); 3205677e049SGordon Ross } 3215677e049SGordon Ross mutex_exit(&sr->sr_mutex); 3225677e049SGordon Ross 323da6c28aaSamw is_dir = (op->create_options & FILE_DIRECTORY_FILE) ? 1 : 0; 324da6c28aaSamw 325037cac00Sjoyce mcintosh /* 326037cac00Sjoyce mcintosh * If the object being created or opened is a directory 327037cac00Sjoyce mcintosh * the Disposition parameter must be one of FILE_CREATE, 328037cac00Sjoyce mcintosh * FILE_OPEN, or FILE_OPEN_IF 329037cac00Sjoyce mcintosh */ 330da6c28aaSamw if (is_dir) { 331da6c28aaSamw if ((op->create_disposition != FILE_CREATE) && 332da6c28aaSamw (op->create_disposition != FILE_OPEN_IF) && 333da6c28aaSamw (op->create_disposition != FILE_OPEN)) { 3347b59d02dSjb return (NT_STATUS_INVALID_PARAMETER); 335da6c28aaSamw } 336da6c28aaSamw } 337da6c28aaSamw 338da6c28aaSamw if (op->desired_access & MAXIMUM_ALLOWED) { 339da6c28aaSamw max_requested = 1; 340da6c28aaSamw op->desired_access &= ~MAXIMUM_ALLOWED; 341da6c28aaSamw } 342da6c28aaSamw op->desired_access = smb_access_generic_to_file(op->desired_access); 343da6c28aaSamw 344*91ca6bffSGordon Ross if (sr->session->s_file_cnt >= smb_session_ofile_max) { 345da6c28aaSamw ASSERT(sr->uid_user); 346cb174861Sjoyce mcintosh cmn_err(CE_NOTE, "smbsrv[%s\\%s]: TOO_MANY_OPENED_FILES", 347148c5f43SAlan Wright sr->uid_user->u_domain, sr->uid_user->u_name); 3487b59d02dSjb return (NT_STATUS_TOO_MANY_OPENED_FILES); 349da6c28aaSamw } 350da6c28aaSamw 351da6c28aaSamw /* This must be NULL at this point */ 352da6c28aaSamw sr->fid_ofile = NULL; 353da6c28aaSamw 354da6c28aaSamw op->devstate = 0; 355da6c28aaSamw 356da6c28aaSamw switch (sr->tid_tree->t_res_type & STYPE_MASK) { 357da6c28aaSamw case STYPE_DISKTREE: 358f96bd5c8SAlan Wright case STYPE_PRINTQ: 359da6c28aaSamw break; 360da6c28aaSamw 361da6c28aaSamw case STYPE_IPC: 362a90cf9f2SGordon Ross /* 363a90cf9f2SGordon Ross * Security descriptors for pipes are not implemented, 364a90cf9f2SGordon Ross * so just setup a reasonable access mask. 365a90cf9f2SGordon Ross */ 366a90cf9f2SGordon Ross op->desired_access = (READ_CONTROL | SYNCHRONIZE | 367a90cf9f2SGordon Ross FILE_READ_DATA | FILE_READ_ATTRIBUTES | 368a90cf9f2SGordon Ross FILE_WRITE_DATA | FILE_APPEND_DATA); 369cb174861Sjoyce mcintosh 370a90cf9f2SGordon Ross /* 371a90cf9f2SGordon Ross * Limit the number of open pipe instances. 372a90cf9f2SGordon Ross */ 373cb174861Sjoyce mcintosh if ((rc = smb_threshold_enter(&sv->sv_opipe_ct)) != 0) { 374cb174861Sjoyce mcintosh status = RPC_NT_SERVER_TOO_BUSY; 375cb174861Sjoyce mcintosh return (status); 376cb174861Sjoyce mcintosh } 377cb174861Sjoyce mcintosh 378da6c28aaSamw /* 379da6c28aaSamw * No further processing for IPC, we need to either 380da6c28aaSamw * raise an exception or return success here. 381da6c28aaSamw */ 38268b2bbf2SGordon Ross uniq_fid = SMB_UNIQ_FID(); 38368b2bbf2SGordon Ross status = smb_opipe_open(sr, uniq_fid); 384856399cfSGordon Ross smb_threshold_exit(&sv->sv_opipe_ct); 3857b59d02dSjb return (status); 386da6c28aaSamw 387da6c28aaSamw default: 3887b59d02dSjb return (NT_STATUS_BAD_DEVICE_TYPE); 389da6c28aaSamw } 390da6c28aaSamw 391fe1c642dSBill Krier smb_pathname_init(sr, pn, pn->pn_path); 392fe1c642dSBill Krier if (!smb_pathname_validate(sr, pn)) 393fe1c642dSBill Krier return (sr->smb_error.status); 394fe1c642dSBill Krier 395b24e356bSPeer Dampmann if (strlen(pn->pn_path) >= SMB_MAXPATHLEN) { 396a90cf9f2SGordon Ross return (NT_STATUS_OBJECT_PATH_INVALID); 397da6c28aaSamw } 398da6c28aaSamw 399fe1c642dSBill Krier if (is_dir) { 400fe1c642dSBill Krier if (!smb_validate_dirname(sr, pn)) 401fe1c642dSBill Krier return (sr->smb_error.status); 402fe1c642dSBill Krier } else { 403fe1c642dSBill Krier if (!smb_validate_object_name(sr, pn)) 404fe1c642dSBill Krier return (sr->smb_error.status); 405da6c28aaSamw } 406da6c28aaSamw 407eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States cur_node = op->fqi.fq_dnode ? 408eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fqi.fq_dnode : sr->tid_tree->t_snode; 409da6c28aaSamw 410d082c877SGordon Ross rc = smb_pathname_reduce(sr, sr->user_cr, pn->pn_path, 411d082c877SGordon Ross sr->tid_tree->t_snode, cur_node, &op->fqi.fq_dnode, 412d082c877SGordon Ross op->fqi.fq_last_comp); 413d082c877SGordon Ross if (rc != 0) { 414d082c877SGordon Ross return (smb_errno2status(rc)); 415da6c28aaSamw } 416da6c28aaSamw 417da6c28aaSamw /* 418da6c28aaSamw * If the access mask has only DELETE set (ignore 419da6c28aaSamw * FILE_READ_ATTRIBUTES), then assume that this 420da6c28aaSamw * is a request to delete the link (if a link) 421da6c28aaSamw * and do not follow links. Otherwise, follow 422da6c28aaSamw * the link to the target. 423da6c28aaSamw */ 424037cac00Sjoyce mcintosh if ((op->desired_access & ~FILE_READ_ATTRIBUTES) == DELETE) 425da6c28aaSamw lookup_flags &= ~SMB_FOLLOW_LINKS; 426da6c28aaSamw 4278622ec45SGordon Ross rc = smb_fsop_lookup_name(sr, zone_kcred(), lookup_flags, 428eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States sr->tid_tree->t_snode, op->fqi.fq_dnode, op->fqi.fq_last_comp, 429037cac00Sjoyce mcintosh &op->fqi.fq_fnode); 430da6c28aaSamw 431da6c28aaSamw if (rc == 0) { 432eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States last_comp_found = B_TRUE; 4335fd03bc0SGordon Ross /* 4345fd03bc0SGordon Ross * Need the DOS attributes below, where we 4355fd03bc0SGordon Ross * check the search attributes (sattr). 4365fd03bc0SGordon Ross */ 4375fd03bc0SGordon Ross op->fqi.fq_fattr.sa_mask = SMB_AT_DOSATTR; 4388622ec45SGordon Ross rc = smb_node_getattr(sr, op->fqi.fq_fnode, zone_kcred(), 4395fd03bc0SGordon Ross NULL, &op->fqi.fq_fattr); 440037cac00Sjoyce mcintosh if (rc != 0) { 441037cac00Sjoyce mcintosh smb_node_release(op->fqi.fq_fnode); 442037cac00Sjoyce mcintosh smb_node_release(op->fqi.fq_dnode); 443a90cf9f2SGordon Ross return (NT_STATUS_INTERNAL_ERROR); 444037cac00Sjoyce mcintosh } 445da6c28aaSamw } else if (rc == ENOENT) { 446eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States last_comp_found = B_FALSE; 447eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fqi.fq_fnode = NULL; 448da6c28aaSamw rc = 0; 449da6c28aaSamw } else { 450eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(op->fqi.fq_dnode); 451a90cf9f2SGordon Ross return (smb_errno2status(rc)); 452da6c28aaSamw } 453da6c28aaSamw 454037cac00Sjoyce mcintosh 455dc20a302Sas /* 456dc20a302Sas * The uniq_fid is a CIFS-server-wide unique identifier for an ofile 457dc20a302Sas * which is used to uniquely identify open instances for the 458c8ec8eeaSjose borrego * VFS share reservation and POSIX locks. 459dc20a302Sas */ 460dc20a302Sas 461dc20a302Sas uniq_fid = SMB_UNIQ_FID(); 462dc20a302Sas 463eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States if (last_comp_found) { 4646537f381Sas 4659fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 4669fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States dnode = op->fqi.fq_dnode; 4676537f381Sas 4689fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (!smb_node_is_file(node) && !smb_node_is_dir(node) && 4699fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States !smb_node_is_symlink(node)) { 4709fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 4719fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 4726537f381Sas return (NT_STATUS_ACCESS_DENIED); 4736537f381Sas } 4746537f381Sas 475da6c28aaSamw /* 4762c1b14e5Sjose borrego * Reject this request if either: 4772c1b14e5Sjose borrego * - the target IS a directory and the client requires that 4782c1b14e5Sjose borrego * it must NOT be (required by Lotus Notes) 4792c1b14e5Sjose borrego * - the target is NOT a directory and client requires that 4802c1b14e5Sjose borrego * it MUST be. 481da6c28aaSamw */ 4829fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (smb_node_is_dir(node)) { 4832c1b14e5Sjose borrego if (op->create_options & FILE_NON_DIRECTORY_FILE) { 484da6c28aaSamw smb_node_release(node); 485da6c28aaSamw smb_node_release(dnode); 4867b59d02dSjb return (NT_STATUS_FILE_IS_A_DIRECTORY); 487da6c28aaSamw } 4882c1b14e5Sjose borrego } else { 4892c1b14e5Sjose borrego if ((op->create_options & FILE_DIRECTORY_FILE) || 4902c2961f8Sjose borrego (op->nt_flags & NT_CREATE_FLAG_OPEN_TARGET_DIR)) { 4912c1b14e5Sjose borrego smb_node_release(node); 4922c1b14e5Sjose borrego smb_node_release(dnode); 4932c1b14e5Sjose borrego return (NT_STATUS_NOT_A_DIRECTORY); 4942c1b14e5Sjose borrego } 495da6c28aaSamw } 496da6c28aaSamw 497da6c28aaSamw /* 498da6c28aaSamw * No more open should be accepted when "Delete on close" 499da6c28aaSamw * flag is set. 500da6c28aaSamw */ 501da6c28aaSamw if (node->flags & NODE_FLAGS_DELETE_ON_CLOSE) { 502da6c28aaSamw smb_node_release(node); 503da6c28aaSamw smb_node_release(dnode); 5047b59d02dSjb return (NT_STATUS_DELETE_PENDING); 505da6c28aaSamw } 506da6c28aaSamw 507da6c28aaSamw /* 508da6c28aaSamw * Specified file already exists so the operation should fail. 509da6c28aaSamw */ 510da6c28aaSamw if (op->create_disposition == FILE_CREATE) { 511da6c28aaSamw smb_node_release(node); 512da6c28aaSamw smb_node_release(dnode); 5137b59d02dSjb return (NT_STATUS_OBJECT_NAME_COLLISION); 514da6c28aaSamw } 515da6c28aaSamw 516da6c28aaSamw /* 517da6c28aaSamw * Windows seems to check read-only access before file 518da6c28aaSamw * sharing check. 519c8ec8eeaSjose borrego * 520c8ec8eeaSjose borrego * Check to see if the file is currently readonly (irrespective 521c8ec8eeaSjose borrego * of whether this open will make it readonly). 522da6c28aaSamw */ 523c8ec8eeaSjose borrego if (SMB_PATHFILE_IS_READONLY(sr, node)) { 524da6c28aaSamw /* Files data only */ 525037cac00Sjoyce mcintosh if (!smb_node_is_dir(node)) { 526da6c28aaSamw if (op->desired_access & (FILE_WRITE_DATA | 527da6c28aaSamw FILE_APPEND_DATA)) { 528da6c28aaSamw smb_node_release(node); 529da6c28aaSamw smb_node_release(dnode); 5307b59d02dSjb return (NT_STATUS_ACCESS_DENIED); 531da6c28aaSamw } 532da6c28aaSamw } 533da6c28aaSamw } 534da6c28aaSamw 535dc20a302Sas if ((op->create_disposition == FILE_SUPERSEDE) || 536dc20a302Sas (op->create_disposition == FILE_OVERWRITE_IF) || 537dc20a302Sas (op->create_disposition == FILE_OVERWRITE)) { 538dc20a302Sas 539fb699f1eSAlek Pinchuk if (!smb_sattr_check(op->fqi.fq_fattr.sa_dosattr, 540fb699f1eSAlek Pinchuk op->dattr)) { 541dc20a302Sas smb_node_release(node); 542dc20a302Sas smb_node_release(dnode); 5437b59d02dSjb return (NT_STATUS_ACCESS_DENIED); 544dc20a302Sas } 545dc20a302Sas 546fb699f1eSAlek Pinchuk if (smb_node_is_dir(node)) { 547fb699f1eSAlek Pinchuk smb_node_release(node); 548fb699f1eSAlek Pinchuk smb_node_release(dnode); 549fb699f1eSAlek Pinchuk return (NT_STATUS_ACCESS_DENIED); 550fb699f1eSAlek Pinchuk } 551da6c28aaSamw } 552da6c28aaSamw 553fb699f1eSAlek Pinchuk /* MS-FSA 2.1.5.1.2 */ 554fb699f1eSAlek Pinchuk if (op->create_disposition == FILE_SUPERSEDE) 555fb699f1eSAlek Pinchuk op->desired_access |= DELETE; 556fb699f1eSAlek Pinchuk if ((op->create_disposition == FILE_OVERWRITE_IF) || 557fb699f1eSAlek Pinchuk (op->create_disposition == FILE_OVERWRITE)) 558fb699f1eSAlek Pinchuk op->desired_access |= FILE_WRITE_DATA; 559fb699f1eSAlek Pinchuk 560da6c28aaSamw status = smb_fsop_access(sr, sr->user_cr, node, 561da6c28aaSamw op->desired_access); 562da6c28aaSamw if (status != NT_STATUS_SUCCESS) { 563da6c28aaSamw smb_node_release(node); 564da6c28aaSamw smb_node_release(dnode); 565dc20a302Sas 566a90cf9f2SGordon Ross /* SMB1 specific? NT_STATUS_PRIVILEGE_NOT_HELD */ 567da6c28aaSamw if (status == NT_STATUS_PRIVILEGE_NOT_HELD) { 5687b59d02dSjb return (status); 569da6c28aaSamw } else { 5707b59d02dSjb return (NT_STATUS_ACCESS_DENIED); 571da6c28aaSamw } 572da6c28aaSamw } 573da6c28aaSamw 574fb699f1eSAlek Pinchuk if (max_requested) { 575fb699f1eSAlek Pinchuk smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed); 576fb699f1eSAlek Pinchuk op->desired_access |= max_allowed; 577fb699f1eSAlek Pinchuk } 578a90cf9f2SGordon Ross /* 579a90cf9f2SGordon Ross * According to MS "dochelp" mail in Mar 2015, any handle 580a90cf9f2SGordon Ross * on which read or write access is granted implicitly 581a90cf9f2SGordon Ross * gets "read attributes", even if it was not requested. 582a90cf9f2SGordon Ross * This avoids unexpected access failures later that 583a90cf9f2SGordon Ross * would happen if these were not granted. 584a90cf9f2SGordon Ross */ 585a90cf9f2SGordon Ross if ((op->desired_access & FILE_DATA_ALL) != 0) { 586a90cf9f2SGordon Ross op->desired_access |= (READ_CONTROL | 587a90cf9f2SGordon Ross FILE_READ_ATTRIBUTES); 588a90cf9f2SGordon Ross } 589fb699f1eSAlek Pinchuk 590fb699f1eSAlek Pinchuk /* 591fb699f1eSAlek Pinchuk * Oplock break is done prior to sharing checks as the break 592fb699f1eSAlek Pinchuk * may cause other clients to close the file which would 593fb699f1eSAlek Pinchuk * affect the sharing checks. This may block, so set the 594fb699f1eSAlek Pinchuk * file opening count before oplock stuff. 595fb699f1eSAlek Pinchuk */ 596fb699f1eSAlek Pinchuk smb_node_inc_opening_count(node); 597fb699f1eSAlek Pinchuk smb_open_oplock_break(sr, node); 598fb699f1eSAlek Pinchuk 599fb699f1eSAlek Pinchuk smb_node_wrlock(node); 600fb699f1eSAlek Pinchuk 601fb699f1eSAlek Pinchuk /* 602fb699f1eSAlek Pinchuk * Check for sharing violations 603fb699f1eSAlek Pinchuk */ 604fb699f1eSAlek Pinchuk status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid, 605fb699f1eSAlek Pinchuk op->desired_access, op->share_access); 606fb699f1eSAlek Pinchuk if (status == NT_STATUS_SHARING_VIOLATION) { 607fb699f1eSAlek Pinchuk smb_node_unlock(node); 608fb699f1eSAlek Pinchuk smb_node_dec_opening_count(node); 609fb699f1eSAlek Pinchuk smb_node_release(node); 610fb699f1eSAlek Pinchuk smb_node_release(dnode); 611fb699f1eSAlek Pinchuk return (status); 612fb699f1eSAlek Pinchuk } 613fb699f1eSAlek Pinchuk 614fb699f1eSAlek Pinchuk /* 615fb699f1eSAlek Pinchuk * Go ahead with modifications as necessary. 616fb699f1eSAlek Pinchuk */ 617da6c28aaSamw switch (op->create_disposition) { 618da6c28aaSamw case FILE_SUPERSEDE: 619da6c28aaSamw case FILE_OVERWRITE_IF: 620da6c28aaSamw case FILE_OVERWRITE: 6212c1b14e5Sjose borrego op->dattr |= FILE_ATTRIBUTE_ARCHIVE; 622037cac00Sjoyce mcintosh /* Don't apply readonly bit until smb_ofile_close */ 6232c1b14e5Sjose borrego if (op->dattr & FILE_ATTRIBUTE_READONLY) { 6242c1b14e5Sjose borrego op->created_readonly = B_TRUE; 6252c1b14e5Sjose borrego op->dattr &= ~FILE_ATTRIBUTE_READONLY; 6262c1b14e5Sjose borrego } 6272c1b14e5Sjose borrego 628a90cf9f2SGordon Ross /* 629a90cf9f2SGordon Ross * Truncate the file data here. 630a90cf9f2SGordon Ross * We set alloc_size = op->dsize later, 631a90cf9f2SGordon Ross * after we have an ofile. See: 632a90cf9f2SGordon Ross * smb_set_open_attributes 633a90cf9f2SGordon Ross */ 634037cac00Sjoyce mcintosh bzero(&new_attr, sizeof (new_attr)); 635037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 636a90cf9f2SGordon Ross new_attr.sa_vattr.va_size = 0; 637037cac00Sjoyce mcintosh new_attr.sa_mask = SMB_AT_DOSATTR | SMB_AT_SIZE; 638037cac00Sjoyce mcintosh rc = smb_fsop_setattr(sr, sr->user_cr, node, &new_attr); 639037cac00Sjoyce mcintosh if (rc != 0) { 640037cac00Sjoyce mcintosh smb_fsop_unshrlock(sr->user_cr, node, uniq_fid); 641037cac00Sjoyce mcintosh smb_node_unlock(node); 642cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 643037cac00Sjoyce mcintosh smb_node_release(node); 644037cac00Sjoyce mcintosh smb_node_release(dnode); 645a90cf9f2SGordon Ross return (smb_errno2status(rc)); 646037cac00Sjoyce mcintosh } 6472c1b14e5Sjose borrego 648da6c28aaSamw /* 649037cac00Sjoyce mcintosh * If file is being replaced, remove existing streams 650da6c28aaSamw */ 651eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_IS_STREAM(node) == 0) { 652a90cf9f2SGordon Ross status = smb_fsop_remove_streams(sr, 653a90cf9f2SGordon Ross sr->user_cr, node); 654a90cf9f2SGordon Ross if (status != 0) { 655eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_fsop_unshrlock(sr->user_cr, node, 656eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States uniq_fid); 657eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(node); 658cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 659eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 660eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 661a90cf9f2SGordon Ross return (status); 662eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 663eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 664da6c28aaSamw 665da6c28aaSamw op->action_taken = SMB_OACT_TRUNCATED; 666da6c28aaSamw break; 667da6c28aaSamw 668da6c28aaSamw default: 669da6c28aaSamw /* 670da6c28aaSamw * FILE_OPEN or FILE_OPEN_IF. 671da6c28aaSamw */ 672a90cf9f2SGordon Ross /* 673a90cf9f2SGordon Ross * Ignore any user-specified alloc_size for 674a90cf9f2SGordon Ross * existing files, to avoid truncation in 675a90cf9f2SGordon Ross * smb_set_open_attributes 676a90cf9f2SGordon Ross */ 677a90cf9f2SGordon Ross op->dsize = 0L; 678da6c28aaSamw op->action_taken = SMB_OACT_OPENED; 679da6c28aaSamw break; 680da6c28aaSamw } 681da6c28aaSamw } else { 682da6c28aaSamw /* Last component was not found. */ 683eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States dnode = op->fqi.fq_dnode; 684da6c28aaSamw 6857b59d02dSjb if (is_dir == 0) 686eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States is_stream = smb_is_stream_name(pn->pn_path); 6877b59d02dSjb 688da6c28aaSamw if ((op->create_disposition == FILE_OPEN) || 689da6c28aaSamw (op->create_disposition == FILE_OVERWRITE)) { 690da6c28aaSamw smb_node_release(dnode); 6917b59d02dSjb return (NT_STATUS_OBJECT_NAME_NOT_FOUND); 692da6c28aaSamw } 693da6c28aaSamw 6949fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (pn->pn_fname && smb_is_invalid_filename(pn->pn_fname)) { 6952c2961f8Sjose borrego smb_node_release(dnode); 6962c2961f8Sjose borrego return (NT_STATUS_OBJECT_NAME_INVALID); 6972c2961f8Sjose borrego } 6982c2961f8Sjose borrego 699da6c28aaSamw /* 700da6c28aaSamw * lock the parent dir node in case another create 701da6c28aaSamw * request to the same parent directory comes in. 702da6c28aaSamw */ 7032c2961f8Sjose borrego smb_node_wrlock(dnode); 704da6c28aaSamw 705037cac00Sjoyce mcintosh /* Don't apply readonly bit until smb_ofile_close */ 706037cac00Sjoyce mcintosh if (op->dattr & FILE_ATTRIBUTE_READONLY) { 707037cac00Sjoyce mcintosh op->dattr &= ~FILE_ATTRIBUTE_READONLY; 708037cac00Sjoyce mcintosh op->created_readonly = B_TRUE; 709037cac00Sjoyce mcintosh } 710c8ec8eeaSjose borrego 711037cac00Sjoyce mcintosh bzero(&new_attr, sizeof (new_attr)); 712c8ec8eeaSjose borrego if ((op->crtime.tv_sec != 0) && 713c8ec8eeaSjose borrego (op->crtime.tv_sec != UINT_MAX)) { 714c8ec8eeaSjose borrego 715c8ec8eeaSjose borrego new_attr.sa_mask |= SMB_AT_CRTIME; 716c8ec8eeaSjose borrego new_attr.sa_crtime = op->crtime; 717c8ec8eeaSjose borrego } 718c8ec8eeaSjose borrego 719da6c28aaSamw if (is_dir == 0) { 720037cac00Sjoyce mcintosh op->dattr |= FILE_ATTRIBUTE_ARCHIVE; 721037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 722da6c28aaSamw new_attr.sa_vattr.va_type = VREG; 7237b59d02dSjb new_attr.sa_vattr.va_mode = is_stream ? S_IRUSR : 7247b59d02dSjb S_IRUSR | S_IRGRP | S_IROTH | 7257b59d02dSjb S_IWUSR | S_IWGRP | S_IWOTH; 726037cac00Sjoyce mcintosh new_attr.sa_mask |= 727037cac00Sjoyce mcintosh SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE; 728dc20a302Sas 729a90cf9f2SGordon Ross /* 730a90cf9f2SGordon Ross * We set alloc_size = op->dsize later, 731c5f48fa5SGordon Ross * (in smb_set_open_attributes) after we 732c5f48fa5SGordon Ross * have an ofile on which to save that. 733c5f48fa5SGordon Ross * 734c5f48fa5SGordon Ross * Legacy Open&X sets size to alloc_size 735c5f48fa5SGordon Ross * when creating a new file. 736a90cf9f2SGordon Ross */ 737c5f48fa5SGordon Ross if (sr->smb_com == SMB_COM_OPEN_ANDX) { 738c5f48fa5SGordon Ross new_attr.sa_vattr.va_size = op->dsize; 739c5f48fa5SGordon Ross new_attr.sa_mask |= SMB_AT_SIZE; 740c5f48fa5SGordon Ross } 741dc20a302Sas 742da6c28aaSamw rc = smb_fsop_create(sr, sr->user_cr, dnode, 743037cac00Sjoyce mcintosh op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode); 744dc20a302Sas 745da6c28aaSamw if (rc != 0) { 7462c2961f8Sjose borrego smb_node_unlock(dnode); 747da6c28aaSamw smb_node_release(dnode); 748a90cf9f2SGordon Ross return (smb_errno2status(rc)); 749da6c28aaSamw } 750da6c28aaSamw 751eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 752cb174861Sjoyce mcintosh smb_node_inc_opening_count(node); 7532c2961f8Sjose borrego smb_node_wrlock(node); 754dc20a302Sas 755faa1795aSjb status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid, 756c8ec8eeaSjose borrego op->desired_access, op->share_access); 757dc20a302Sas 758dc20a302Sas if (status == NT_STATUS_SHARING_VIOLATION) { 7592c2961f8Sjose borrego smb_node_unlock(node); 760cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 761037cac00Sjoyce mcintosh smb_delete_new_object(sr); 762dc20a302Sas smb_node_release(node); 7632c2961f8Sjose borrego smb_node_unlock(dnode); 764dc20a302Sas smb_node_release(dnode); 765dc20a302Sas return (status); 766dc20a302Sas } 767da6c28aaSamw } else { 7683db3f65cSamw op->dattr |= FILE_ATTRIBUTE_DIRECTORY; 769037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 770da6c28aaSamw new_attr.sa_vattr.va_type = VDIR; 771da6c28aaSamw new_attr.sa_vattr.va_mode = 0777; 772037cac00Sjoyce mcintosh new_attr.sa_mask |= 773037cac00Sjoyce mcintosh SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE; 774c8ec8eeaSjose borrego 775da6c28aaSamw rc = smb_fsop_mkdir(sr, sr->user_cr, dnode, 776037cac00Sjoyce mcintosh op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode); 777da6c28aaSamw if (rc != 0) { 7782c2961f8Sjose borrego smb_node_unlock(dnode); 779da6c28aaSamw smb_node_release(dnode); 780a90cf9f2SGordon Ross return (smb_errno2status(rc)); 781da6c28aaSamw } 782dc20a302Sas 783eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 784cb174861Sjoyce mcintosh smb_node_inc_opening_count(node); 7852c2961f8Sjose borrego smb_node_wrlock(node); 786da6c28aaSamw } 787da6c28aaSamw 788eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States created = B_TRUE; 789da6c28aaSamw op->action_taken = SMB_OACT_CREATED; 790c8ec8eeaSjose borrego 791fb699f1eSAlek Pinchuk if (max_requested) { 792fb699f1eSAlek Pinchuk smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed); 793fb699f1eSAlek Pinchuk op->desired_access |= max_allowed; 794fb699f1eSAlek Pinchuk } 795a90cf9f2SGordon Ross /* 796245d1332SMatt Barden * We created this object (we own it) so grant 797245d1332SMatt Barden * read_control + read_attributes on this handle, 798a90cf9f2SGordon Ross * even if that was not requested. This avoids 799245d1332SMatt Barden * unexpected access failures later. 800a90cf9f2SGordon Ross */ 801245d1332SMatt Barden op->desired_access |= (READ_CONTROL | FILE_READ_ATTRIBUTES); 802c8ec8eeaSjose borrego } 803c8ec8eeaSjose borrego 804037cac00Sjoyce mcintosh status = NT_STATUS_SUCCESS; 805c8ec8eeaSjose borrego 80668b2bbf2SGordon Ross of = smb_ofile_open(sr, node, op, SMB_FTYPE_DISK, uniq_fid, 8073b13a1efSThomas Keiser &err); 808da6c28aaSamw if (of == NULL) { 809037cac00Sjoyce mcintosh status = err.status; 810037cac00Sjoyce mcintosh } 811037cac00Sjoyce mcintosh 81268b2bbf2SGordon Ross /* 81368b2bbf2SGordon Ross * We might have blocked in smb_ofile_open long enough so a 81468b2bbf2SGordon Ross * tree disconnect might have happened. In that case, we've 81568b2bbf2SGordon Ross * just added an ofile to a tree that's disconnecting, and 81668b2bbf2SGordon Ross * need to undo that to avoid interfering with tear-down of 81768b2bbf2SGordon Ross * the tree connection. 81868b2bbf2SGordon Ross */ 81968b2bbf2SGordon Ross if (status == NT_STATUS_SUCCESS && 82068b2bbf2SGordon Ross !smb_tree_is_connected(sr->tid_tree)) { 82168b2bbf2SGordon Ross status = NT_STATUS_INVALID_PARAMETER; 822037cac00Sjoyce mcintosh } 823037cac00Sjoyce mcintosh 824037cac00Sjoyce mcintosh /* 825037cac00Sjoyce mcintosh * This MUST be done after ofile creation, so that explicitly 8265fd03bc0SGordon Ross * set timestamps can be remembered on the ofile, and the 8275fd03bc0SGordon Ross * readonly flag will be stored "pending" on the node. 828037cac00Sjoyce mcintosh */ 829037cac00Sjoyce mcintosh if (status == NT_STATUS_SUCCESS) { 8305fd03bc0SGordon Ross if ((rc = smb_set_open_attributes(sr, of)) != 0) { 831a90cf9f2SGordon Ross status = smb_errno2status(rc); 832037cac00Sjoyce mcintosh } 833037cac00Sjoyce mcintosh } 834037cac00Sjoyce mcintosh 835037cac00Sjoyce mcintosh if (status == NT_STATUS_SUCCESS) { 8365fd03bc0SGordon Ross /* 8375fd03bc0SGordon Ross * We've already done access checks above, 8385fd03bc0SGordon Ross * and want this call to succeed even when 8395fd03bc0SGordon Ross * !(desired_access & FILE_READ_ATTRIBUTES), 8405fd03bc0SGordon Ross * so pass kcred here. 8415fd03bc0SGordon Ross */ 8425fd03bc0SGordon Ross op->fqi.fq_fattr.sa_mask = SMB_AT_ALL; 8438622ec45SGordon Ross rc = smb_node_getattr(sr, node, zone_kcred(), of, 8445fd03bc0SGordon Ross &op->fqi.fq_fattr); 8455fd03bc0SGordon Ross if (rc != 0) { 846037cac00Sjoyce mcintosh status = NT_STATUS_INTERNAL_ERROR; 847037cac00Sjoyce mcintosh } 848da6c28aaSamw } 849da6c28aaSamw 850037cac00Sjoyce mcintosh /* 851037cac00Sjoyce mcintosh * smb_fsop_unshrlock is a no-op if node is a directory 852037cac00Sjoyce mcintosh * smb_fsop_unshrlock is done in smb_ofile_close 853037cac00Sjoyce mcintosh */ 854037cac00Sjoyce mcintosh if (status != NT_STATUS_SUCCESS) { 855037cac00Sjoyce mcintosh if (of == NULL) { 856037cac00Sjoyce mcintosh smb_fsop_unshrlock(sr->user_cr, node, uniq_fid); 857037cac00Sjoyce mcintosh } else { 858037cac00Sjoyce mcintosh smb_ofile_close(of, 0); 859037cac00Sjoyce mcintosh smb_ofile_release(of); 860037cac00Sjoyce mcintosh } 8618b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (created) 8628b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_delete_new_object(sr); 8638b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(node); 864cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 8658b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 8668b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (created) 8678b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(dnode); 8688b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 869037cac00Sjoyce mcintosh return (status); 8708b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States } 8718b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 8728c10a865Sas /* 8738c10a865Sas * Propagate the write-through mode from the open params 8748c10a865Sas * to the node: see the notes in the function header. 8758c10a865Sas */ 8768c10a865Sas if (sr->sr_cfg->skc_sync_enable || 8778c10a865Sas (op->create_options & FILE_WRITE_THROUGH)) 8788c10a865Sas node->flags |= NODE_FLAGS_WRITE_THROUGH; 8798c10a865Sas 880037cac00Sjoyce mcintosh /* 881037cac00Sjoyce mcintosh * Set up the fileid and dosattr in open_param for response 882037cac00Sjoyce mcintosh */ 883eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fileid = op->fqi.fq_fattr.sa_vattr.va_nodeid; 884037cac00Sjoyce mcintosh op->dattr = op->fqi.fq_fattr.sa_dosattr; 8858c10a865Sas 886da6c28aaSamw /* 887da6c28aaSamw * Set up the file type in open_param for the response 888da6c28aaSamw */ 889da6c28aaSamw op->ftype = SMB_FTYPE_DISK; 890da6c28aaSamw sr->smb_fid = of->f_fid; 891da6c28aaSamw sr->fid_ofile = of; 892da6c28aaSamw 8939fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (smb_node_is_file(node)) { 894cb174861Sjoyce mcintosh smb_oplock_acquire(sr, node, of); 895eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->dsize = op->fqi.fq_fattr.sa_vattr.va_size; 8969fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States } else { 8979fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States /* directory or symlink */ 8982c2961f8Sjose borrego op->op_oplock_level = SMB_OPLOCK_NONE; 8992c2961f8Sjose borrego op->dsize = 0; 9002c2961f8Sjose borrego } 901dc20a302Sas 902cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 903cb174861Sjoyce mcintosh 904cb174861Sjoyce mcintosh smb_node_unlock(node); 905cb174861Sjoyce mcintosh if (created) 906cb174861Sjoyce mcintosh smb_node_unlock(dnode); 907cb174861Sjoyce mcintosh 9088b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 909da6c28aaSamw smb_node_release(dnode); 910da6c28aaSamw 911da6c28aaSamw return (NT_STATUS_SUCCESS); 912da6c28aaSamw } 913da6c28aaSamw 914cb174861Sjoyce mcintosh /* 915cb174861Sjoyce mcintosh * smb_open_oplock_break 916cb174861Sjoyce mcintosh * 917cb174861Sjoyce mcintosh * If the node has an ofile opened with share access none, 918cb174861Sjoyce mcintosh * (smb_node_share_check = FALSE) only break BATCH oplock. 919cb174861Sjoyce mcintosh * Otherwise: 920cb174861Sjoyce mcintosh * If overwriting, break to SMB_OPLOCK_NONE, else 921cb174861Sjoyce mcintosh * If opening for anything other than attribute access, 922cb174861Sjoyce mcintosh * break oplock to LEVEL_II. 923cb174861Sjoyce mcintosh */ 924cb174861Sjoyce mcintosh static void 925cb174861Sjoyce mcintosh smb_open_oplock_break(smb_request_t *sr, smb_node_t *node) 926cb174861Sjoyce mcintosh { 927cb174861Sjoyce mcintosh smb_arg_open_t *op = &sr->sr_open; 928cb174861Sjoyce mcintosh uint32_t flags = 0; 929cb174861Sjoyce mcintosh 930cb174861Sjoyce mcintosh if (!smb_node_share_check(node)) 931cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_BATCH; 932cb174861Sjoyce mcintosh 933cb174861Sjoyce mcintosh if (smb_open_overwrite(op)) { 934cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_TO_NONE; 935cb174861Sjoyce mcintosh (void) smb_oplock_break(sr, node, flags); 936cb174861Sjoyce mcintosh } else if (!smb_open_attr_only(op)) { 937cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_TO_LEVEL_II; 938cb174861Sjoyce mcintosh (void) smb_oplock_break(sr, node, flags); 939cb174861Sjoyce mcintosh } 940cb174861Sjoyce mcintosh } 941cb174861Sjoyce mcintosh 942cb174861Sjoyce mcintosh /* 943cb174861Sjoyce mcintosh * smb_open_attr_only 944cb174861Sjoyce mcintosh * 945cb174861Sjoyce mcintosh * Determine if file is being opened for attribute access only. 946cb174861Sjoyce mcintosh * This is used to determine whether it is necessary to break 947cb174861Sjoyce mcintosh * existing oplocks on the file. 948cb174861Sjoyce mcintosh */ 949cb174861Sjoyce mcintosh static boolean_t 950cb174861Sjoyce mcintosh smb_open_attr_only(smb_arg_open_t *op) 951cb174861Sjoyce mcintosh { 952cb174861Sjoyce mcintosh if (((op->desired_access & ~(FILE_READ_ATTRIBUTES | 953fb699f1eSAlek Pinchuk FILE_WRITE_ATTRIBUTES | SYNCHRONIZE | READ_CONTROL)) == 0) && 954cb174861Sjoyce mcintosh (op->create_disposition != FILE_SUPERSEDE) && 955cb174861Sjoyce mcintosh (op->create_disposition != FILE_OVERWRITE)) { 956cb174861Sjoyce mcintosh return (B_TRUE); 957cb174861Sjoyce mcintosh } 958cb174861Sjoyce mcintosh return (B_FALSE); 959cb174861Sjoyce mcintosh } 960cb174861Sjoyce mcintosh 961cb174861Sjoyce mcintosh static boolean_t 962cb174861Sjoyce mcintosh smb_open_overwrite(smb_arg_open_t *op) 963cb174861Sjoyce mcintosh { 964cb174861Sjoyce mcintosh if ((op->create_disposition == FILE_SUPERSEDE) || 965cb174861Sjoyce mcintosh (op->create_disposition == FILE_OVERWRITE_IF) || 966cb174861Sjoyce mcintosh (op->create_disposition == FILE_OVERWRITE)) { 967cb174861Sjoyce mcintosh return (B_TRUE); 968cb174861Sjoyce mcintosh } 969cb174861Sjoyce mcintosh return (B_FALSE); 970cb174861Sjoyce mcintosh } 9715fd03bc0SGordon Ross 972037cac00Sjoyce mcintosh /* 9735fd03bc0SGordon Ross * smb_set_open_attributes 974037cac00Sjoyce mcintosh * 975037cac00Sjoyce mcintosh * Last write time: 976037cac00Sjoyce mcintosh * - If the last_write time specified in the open params is not 0 or -1, 977037cac00Sjoyce mcintosh * use it as file's mtime. This will be considered an explicitly set 978037cac00Sjoyce mcintosh * timestamps, not reset by subsequent writes. 979037cac00Sjoyce mcintosh * 9805fd03bc0SGordon Ross * DOS attributes 9815fd03bc0SGordon Ross * - If we created_readonly, we now store the real DOS attributes 9825fd03bc0SGordon Ross * (including the readonly bit) so subsequent opens will see it. 983037cac00Sjoyce mcintosh * 9845fd03bc0SGordon Ross * Both are stored "pending" rather than in the file system. 985037cac00Sjoyce mcintosh * 986037cac00Sjoyce mcintosh * Returns: errno 987037cac00Sjoyce mcintosh */ 988037cac00Sjoyce mcintosh static int 9895fd03bc0SGordon Ross smb_set_open_attributes(smb_request_t *sr, smb_ofile_t *of) 990037cac00Sjoyce mcintosh { 9915fd03bc0SGordon Ross smb_attr_t attr; 992148c5f43SAlan Wright smb_arg_open_t *op = &sr->sr_open; 993037cac00Sjoyce mcintosh smb_node_t *node = of->f_node; 9945fd03bc0SGordon Ross int rc = 0; 995037cac00Sjoyce mcintosh 996037cac00Sjoyce mcintosh bzero(&attr, sizeof (smb_attr_t)); 9975fd03bc0SGordon Ross 9985fd03bc0SGordon Ross if (op->created_readonly) { 9995fd03bc0SGordon Ross attr.sa_dosattr = op->dattr | FILE_ATTRIBUTE_READONLY; 10005fd03bc0SGordon Ross attr.sa_mask |= SMB_AT_DOSATTR; 10015fd03bc0SGordon Ross } 1002037cac00Sjoyce mcintosh 1003a90cf9f2SGordon Ross if (op->dsize != 0) { 1004a90cf9f2SGordon Ross attr.sa_allocsz = op->dsize; 1005a90cf9f2SGordon Ross attr.sa_mask |= SMB_AT_ALLOCSZ; 1006a90cf9f2SGordon Ross } 1007a90cf9f2SGordon Ross 1008037cac00Sjoyce mcintosh if ((op->mtime.tv_sec != 0) && (op->mtime.tv_sec != UINT_MAX)) { 1009037cac00Sjoyce mcintosh attr.sa_vattr.va_mtime = op->mtime; 10105fd03bc0SGordon Ross attr.sa_mask |= SMB_AT_MTIME; 1011037cac00Sjoyce mcintosh } 1012037cac00Sjoyce mcintosh 10135fd03bc0SGordon Ross /* 10145fd03bc0SGordon Ross * Used to have code here to set mtime, ctime, atime 10155fd03bc0SGordon Ross * when the open op->create_disposition is any of: 10165fd03bc0SGordon Ross * FILE_SUPERSEDE, FILE_OVERWRITE_IF, FILE_OVERWRITE. 10175fd03bc0SGordon Ross * We know that in those cases we will have set the 10185fd03bc0SGordon Ross * file size, in which case the file system will 10195fd03bc0SGordon Ross * update those times, so we don't have to. 10205fd03bc0SGordon Ross * 10215fd03bc0SGordon Ross * However, keep track of the fact that we modified 10225fd03bc0SGordon Ross * the file via this handle, so we can do the evil, 10235fd03bc0SGordon Ross * gratuitious mtime update on close that Windows 10245fd03bc0SGordon Ross * clients appear to expect. 10255fd03bc0SGordon Ross */ 10265fd03bc0SGordon Ross if (op->action_taken == SMB_OACT_TRUNCATED) 10275fd03bc0SGordon Ross of->f_written = B_TRUE; 1028037cac00Sjoyce mcintosh 10295fd03bc0SGordon Ross if (attr.sa_mask != 0) 10305fd03bc0SGordon Ross rc = smb_node_setattr(sr, node, of->f_cr, of, &attr); 1031037cac00Sjoyce mcintosh 1032037cac00Sjoyce mcintosh return (rc); 1033037cac00Sjoyce mcintosh } 1034037cac00Sjoyce mcintosh 1035da6c28aaSamw /* 10368b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States * This function is used to delete a newly created object (file or 10378b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States * directory) if an error occurs after creation of the object. 1038da6c28aaSamw */ 10398b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States static void 10408b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_delete_new_object(smb_request_t *sr) 1041da6c28aaSamw { 1042148c5f43SAlan Wright smb_arg_open_t *op = &sr->sr_open; 10438b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_fqi_t *fqi = &(op->fqi); 10448b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States uint32_t flags = 0; 10458b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 10468b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_TREE_IS_CASEINSENSITIVE(sr)) 10478b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States flags |= SMB_IGNORE_CASE; 10488b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_TREE_SUPPORTS_CATIA(sr)) 10498b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States flags |= SMB_CATIA; 10508b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 10518b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (op->create_options & FILE_DIRECTORY_FILE) 1052eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States (void) smb_fsop_rmdir(sr, sr->user_cr, fqi->fq_dnode, 1053eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States fqi->fq_last_comp, flags); 10548b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States else 1055eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States (void) smb_fsop_remove(sr, sr->user_cr, fqi->fq_dnode, 1056eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States fqi->fq_last_comp, flags); 1057eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 1058