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*5677e049SGordon 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 4168b2bbf2SGordon Ross static volatile uint32_t smb_fids = 0; 42b819cea2SGordon Ross #define SMB_UNIQ_FID() atomic_inc_32_nv(&smb_fids) 437b59d02dSjb 447b59d02dSjb static uint32_t smb_open_subr(smb_request_t *); 45faa1795aSjb 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 */ 65a90cf9f2SGordon Ross static uint32_t 66da6c28aaSamw smb_access_generic_to_file(uint32_t desired_access) 67da6c28aaSamw { 68a90cf9f2SGordon 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: 112c5f48fa5SGordon Ross return (FILE_GENERIC_READ | 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 1757b59d02dSjb /* 1767b59d02dSjb * Retry opens to avoid spurious sharing violations, due to timing 1777b59d02dSjb * issues between closes and opens. The client that already has the 1787b59d02dSjb * file open may be in the process of closing it. 1797b59d02dSjb */ 1807b59d02dSjb uint32_t 1817b59d02dSjb smb_common_open(smb_request_t *sr) 1827b59d02dSjb { 183148c5f43SAlan Wright smb_arg_open_t *parg; 184bbf6f00cSJordan Brown uint32_t status = NT_STATUS_SUCCESS; 185bbf6f00cSJordan Brown int count; 186bbf6f00cSJordan Brown 187bbf6f00cSJordan Brown parg = kmem_alloc(sizeof (*parg), KM_SLEEP); 188bbf6f00cSJordan Brown bcopy(&sr->arg.open, parg, sizeof (*parg)); 1897b59d02dSjb 1907b59d02dSjb for (count = 0; count <= 4; count++) { 191bbf6f00cSJordan Brown if (count != 0) 1927b59d02dSjb delay(MSEC_TO_TICK(400)); 1937b59d02dSjb 194faa1795aSjb status = smb_open_subr(sr); 195faa1795aSjb if (status != NT_STATUS_SHARING_VIOLATION) 1967b59d02dSjb break; 197bbf6f00cSJordan Brown 198bbf6f00cSJordan Brown bcopy(parg, &sr->arg.open, sizeof (*parg)); 1997b59d02dSjb } 2007b59d02dSjb 201a90cf9f2SGordon Ross if (status == NT_STATUS_NO_SUCH_FILE) 202a90cf9f2SGordon Ross status = NT_STATUS_OBJECT_NAME_NOT_FOUND; 2032c2961f8Sjose borrego 204bbf6f00cSJordan Brown kmem_free(parg, sizeof (*parg)); 2057b59d02dSjb return (status); 2067b59d02dSjb } 2077b59d02dSjb 208da6c28aaSamw /* 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 * 226a90cf9f2SGordon Ross * This function returns NT status codes. 2278c10a865Sas * 2288c10a865Sas * The following rules apply when processing a file open request: 2298c10a865Sas * 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. 2338c10a865Sas * 2348c10a865Sas * - Share checks must take place prior to access checks for correct 2358c10a865Sas * Windows semantics and to prevent unnecessary NFS delegation recalls. 2368c10a865Sas * 2378c10a865Sas * - Oplocks must be acquired after open to ensure the correct 2388c10a865Sas * 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 */ 2907b59d02dSjb static uint32_t 2917b59d02dSjb 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; 2992c2961f8Sjose borrego int rc; 3002c2961f8Sjose borrego smb_ofile_t *of; 3012c2961f8Sjose borrego smb_attr_t new_attr; 3022c2961f8Sjose borrego int max_requested = 0; 3032c2961f8Sjose borrego uint32_t max_allowed; 3042c2961f8Sjose borrego uint32_t status = NT_STATUS_SUCCESS; 3052c2961f8Sjose borrego int is_dir; 3062c2961f8Sjose borrego smb_error_t err; 3072c2961f8Sjose borrego boolean_t is_stream = B_FALSE; 3082c2961f8Sjose borrego int lookup_flags = SMB_FOLLOW_LINKS; 3092c2961f8Sjose borrego 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 313*5677e049SGordon Ross /* Get out now if we've been cancelled. */ 314*5677e049SGordon Ross mutex_enter(&sr->sr_mutex); 315*5677e049SGordon Ross if (sr->sr_state != SMB_REQ_STATE_ACTIVE) { 316*5677e049SGordon Ross mutex_exit(&sr->sr_mutex); 317*5677e049SGordon Ross return (NT_STATUS_CANCELLED); 318*5677e049SGordon Ross } 319*5677e049SGordon Ross mutex_exit(&sr->sr_mutex); 320*5677e049SGordon Ross 321da6c28aaSamw is_dir = (op->create_options & FILE_DIRECTORY_FILE) ? 1 : 0; 322da6c28aaSamw 323037cac00Sjoyce mcintosh /* 324037cac00Sjoyce mcintosh * If the object being created or opened is a directory 325037cac00Sjoyce mcintosh * the Disposition parameter must be one of FILE_CREATE, 326037cac00Sjoyce mcintosh * FILE_OPEN, or FILE_OPEN_IF 327037cac00Sjoyce mcintosh */ 328da6c28aaSamw if (is_dir) { 329da6c28aaSamw if ((op->create_disposition != FILE_CREATE) && 330da6c28aaSamw (op->create_disposition != FILE_OPEN_IF) && 331da6c28aaSamw (op->create_disposition != FILE_OPEN)) { 3327b59d02dSjb return (NT_STATUS_INVALID_PARAMETER); 333da6c28aaSamw } 334da6c28aaSamw } 335da6c28aaSamw 336da6c28aaSamw if (op->desired_access & MAXIMUM_ALLOWED) { 337da6c28aaSamw max_requested = 1; 338da6c28aaSamw op->desired_access &= ~MAXIMUM_ALLOWED; 339da6c28aaSamw } 340da6c28aaSamw op->desired_access = smb_access_generic_to_file(op->desired_access); 341da6c28aaSamw 342da6c28aaSamw if (sr->session->s_file_cnt >= SMB_SESSION_OFILE_MAX) { 343da6c28aaSamw ASSERT(sr->uid_user); 344cb174861Sjoyce mcintosh cmn_err(CE_NOTE, "smbsrv[%s\\%s]: TOO_MANY_OPENED_FILES", 345148c5f43SAlan Wright sr->uid_user->u_domain, sr->uid_user->u_name); 3467b59d02dSjb return (NT_STATUS_TOO_MANY_OPENED_FILES); 347da6c28aaSamw } 348da6c28aaSamw 349da6c28aaSamw /* This must be NULL at this point */ 350da6c28aaSamw sr->fid_ofile = NULL; 351da6c28aaSamw 352da6c28aaSamw op->devstate = 0; 353da6c28aaSamw 354da6c28aaSamw switch (sr->tid_tree->t_res_type & STYPE_MASK) { 355da6c28aaSamw case STYPE_DISKTREE: 356f96bd5c8SAlan Wright case STYPE_PRINTQ: 357da6c28aaSamw break; 358da6c28aaSamw 359da6c28aaSamw case STYPE_IPC: 360a90cf9f2SGordon Ross /* 361a90cf9f2SGordon Ross * Security descriptors for pipes are not implemented, 362a90cf9f2SGordon Ross * so just setup a reasonable access mask. 363a90cf9f2SGordon Ross */ 364a90cf9f2SGordon Ross op->desired_access = (READ_CONTROL | SYNCHRONIZE | 365a90cf9f2SGordon Ross FILE_READ_DATA | FILE_READ_ATTRIBUTES | 366a90cf9f2SGordon Ross FILE_WRITE_DATA | FILE_APPEND_DATA); 367cb174861Sjoyce mcintosh 368a90cf9f2SGordon Ross /* 369a90cf9f2SGordon Ross * Limit the number of open pipe instances. 370a90cf9f2SGordon Ross */ 371cb174861Sjoyce mcintosh if ((rc = smb_threshold_enter(&sv->sv_opipe_ct)) != 0) { 372cb174861Sjoyce mcintosh status = RPC_NT_SERVER_TOO_BUSY; 373cb174861Sjoyce mcintosh return (status); 374cb174861Sjoyce mcintosh } 375cb174861Sjoyce mcintosh 376da6c28aaSamw /* 377da6c28aaSamw * No further processing for IPC, we need to either 378da6c28aaSamw * raise an exception or return success here. 379da6c28aaSamw */ 38068b2bbf2SGordon Ross uniq_fid = SMB_UNIQ_FID(); 38168b2bbf2SGordon Ross status = smb_opipe_open(sr, uniq_fid); 382856399cfSGordon Ross smb_threshold_exit(&sv->sv_opipe_ct); 3837b59d02dSjb return (status); 384da6c28aaSamw 385da6c28aaSamw default: 3867b59d02dSjb return (NT_STATUS_BAD_DEVICE_TYPE); 387da6c28aaSamw } 388da6c28aaSamw 389fe1c642dSBill Krier smb_pathname_init(sr, pn, pn->pn_path); 390fe1c642dSBill Krier if (!smb_pathname_validate(sr, pn)) 391fe1c642dSBill Krier return (sr->smb_error.status); 392fe1c642dSBill Krier 393b24e356bSPeer Dampmann if (strlen(pn->pn_path) >= SMB_MAXPATHLEN) { 394a90cf9f2SGordon Ross return (NT_STATUS_OBJECT_PATH_INVALID); 395da6c28aaSamw } 396da6c28aaSamw 397fe1c642dSBill Krier if (is_dir) { 398fe1c642dSBill Krier if (!smb_validate_dirname(sr, pn)) 399fe1c642dSBill Krier return (sr->smb_error.status); 400fe1c642dSBill Krier } else { 401fe1c642dSBill Krier if (!smb_validate_object_name(sr, pn)) 402fe1c642dSBill Krier return (sr->smb_error.status); 403da6c28aaSamw } 404da6c28aaSamw 405eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States cur_node = op->fqi.fq_dnode ? 406eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fqi.fq_dnode : sr->tid_tree->t_snode; 407da6c28aaSamw 408d082c877SGordon Ross rc = smb_pathname_reduce(sr, sr->user_cr, pn->pn_path, 409d082c877SGordon Ross sr->tid_tree->t_snode, cur_node, &op->fqi.fq_dnode, 410d082c877SGordon Ross op->fqi.fq_last_comp); 411d082c877SGordon Ross if (rc != 0) { 412d082c877SGordon Ross return (smb_errno2status(rc)); 413da6c28aaSamw } 414da6c28aaSamw 415da6c28aaSamw /* 416da6c28aaSamw * If the access mask has only DELETE set (ignore 417da6c28aaSamw * FILE_READ_ATTRIBUTES), then assume that this 418da6c28aaSamw * is a request to delete the link (if a link) 419da6c28aaSamw * and do not follow links. Otherwise, follow 420da6c28aaSamw * the link to the target. 421da6c28aaSamw */ 422037cac00Sjoyce mcintosh if ((op->desired_access & ~FILE_READ_ATTRIBUTES) == DELETE) 423da6c28aaSamw lookup_flags &= ~SMB_FOLLOW_LINKS; 424da6c28aaSamw 4258622ec45SGordon Ross rc = smb_fsop_lookup_name(sr, zone_kcred(), lookup_flags, 426eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States sr->tid_tree->t_snode, op->fqi.fq_dnode, op->fqi.fq_last_comp, 427037cac00Sjoyce mcintosh &op->fqi.fq_fnode); 428da6c28aaSamw 429da6c28aaSamw if (rc == 0) { 430eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States last_comp_found = B_TRUE; 4315fd03bc0SGordon Ross /* 4325fd03bc0SGordon Ross * Need the DOS attributes below, where we 4335fd03bc0SGordon Ross * check the search attributes (sattr). 4345fd03bc0SGordon Ross */ 4355fd03bc0SGordon Ross op->fqi.fq_fattr.sa_mask = SMB_AT_DOSATTR; 4368622ec45SGordon Ross rc = smb_node_getattr(sr, op->fqi.fq_fnode, zone_kcred(), 4375fd03bc0SGordon Ross NULL, &op->fqi.fq_fattr); 438037cac00Sjoyce mcintosh if (rc != 0) { 439037cac00Sjoyce mcintosh smb_node_release(op->fqi.fq_fnode); 440037cac00Sjoyce mcintosh smb_node_release(op->fqi.fq_dnode); 441a90cf9f2SGordon Ross return (NT_STATUS_INTERNAL_ERROR); 442037cac00Sjoyce mcintosh } 443da6c28aaSamw } else if (rc == ENOENT) { 444eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States last_comp_found = B_FALSE; 445eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fqi.fq_fnode = NULL; 446da6c28aaSamw rc = 0; 447da6c28aaSamw } else { 448eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(op->fqi.fq_dnode); 449a90cf9f2SGordon Ross return (smb_errno2status(rc)); 450da6c28aaSamw } 451da6c28aaSamw 452037cac00Sjoyce mcintosh 453dc20a302Sas /* 454dc20a302Sas * The uniq_fid is a CIFS-server-wide unique identifier for an ofile 455dc20a302Sas * which is used to uniquely identify open instances for the 456c8ec8eeaSjose borrego * VFS share reservation and POSIX locks. 457dc20a302Sas */ 458dc20a302Sas 459dc20a302Sas uniq_fid = SMB_UNIQ_FID(); 460dc20a302Sas 461eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States if (last_comp_found) { 4626537f381Sas 4639fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 4649fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States dnode = op->fqi.fq_dnode; 4656537f381Sas 4669fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (!smb_node_is_file(node) && !smb_node_is_dir(node) && 4679fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States !smb_node_is_symlink(node)) { 4689fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 4699fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 4706537f381Sas return (NT_STATUS_ACCESS_DENIED); 4716537f381Sas } 4726537f381Sas 473da6c28aaSamw /* 4742c1b14e5Sjose borrego * Reject this request if either: 4752c1b14e5Sjose borrego * - the target IS a directory and the client requires that 4762c1b14e5Sjose borrego * it must NOT be (required by Lotus Notes) 4772c1b14e5Sjose borrego * - the target is NOT a directory and client requires that 4782c1b14e5Sjose borrego * it MUST be. 479da6c28aaSamw */ 4809fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (smb_node_is_dir(node)) { 4812c1b14e5Sjose borrego if (op->create_options & FILE_NON_DIRECTORY_FILE) { 482da6c28aaSamw smb_node_release(node); 483da6c28aaSamw smb_node_release(dnode); 4847b59d02dSjb return (NT_STATUS_FILE_IS_A_DIRECTORY); 485da6c28aaSamw } 4862c1b14e5Sjose borrego } else { 4872c1b14e5Sjose borrego if ((op->create_options & FILE_DIRECTORY_FILE) || 4882c2961f8Sjose borrego (op->nt_flags & NT_CREATE_FLAG_OPEN_TARGET_DIR)) { 4892c1b14e5Sjose borrego smb_node_release(node); 4902c1b14e5Sjose borrego smb_node_release(dnode); 4912c1b14e5Sjose borrego return (NT_STATUS_NOT_A_DIRECTORY); 4922c1b14e5Sjose borrego } 493da6c28aaSamw } 494da6c28aaSamw 495da6c28aaSamw /* 496da6c28aaSamw * No more open should be accepted when "Delete on close" 497da6c28aaSamw * flag is set. 498da6c28aaSamw */ 499da6c28aaSamw if (node->flags & NODE_FLAGS_DELETE_ON_CLOSE) { 500da6c28aaSamw smb_node_release(node); 501da6c28aaSamw smb_node_release(dnode); 5027b59d02dSjb return (NT_STATUS_DELETE_PENDING); 503da6c28aaSamw } 504da6c28aaSamw 505da6c28aaSamw /* 506da6c28aaSamw * Specified file already exists so the operation should fail. 507da6c28aaSamw */ 508da6c28aaSamw if (op->create_disposition == FILE_CREATE) { 509da6c28aaSamw smb_node_release(node); 510da6c28aaSamw smb_node_release(dnode); 5117b59d02dSjb return (NT_STATUS_OBJECT_NAME_COLLISION); 512da6c28aaSamw } 513da6c28aaSamw 514da6c28aaSamw /* 515da6c28aaSamw * Windows seems to check read-only access before file 516da6c28aaSamw * sharing check. 517c8ec8eeaSjose borrego * 518c8ec8eeaSjose borrego * Check to see if the file is currently readonly (irrespective 519c8ec8eeaSjose borrego * of whether this open will make it readonly). 520da6c28aaSamw */ 521c8ec8eeaSjose borrego if (SMB_PATHFILE_IS_READONLY(sr, node)) { 522da6c28aaSamw /* Files data only */ 523037cac00Sjoyce mcintosh if (!smb_node_is_dir(node)) { 524da6c28aaSamw if (op->desired_access & (FILE_WRITE_DATA | 525da6c28aaSamw FILE_APPEND_DATA)) { 526da6c28aaSamw smb_node_release(node); 527da6c28aaSamw smb_node_release(dnode); 5287b59d02dSjb return (NT_STATUS_ACCESS_DENIED); 529da6c28aaSamw } 530da6c28aaSamw } 531da6c28aaSamw } 532da6c28aaSamw 533dc20a302Sas if ((op->create_disposition == FILE_SUPERSEDE) || 534dc20a302Sas (op->create_disposition == FILE_OVERWRITE_IF) || 535dc20a302Sas (op->create_disposition == FILE_OVERWRITE)) { 536dc20a302Sas 537fb699f1eSAlek Pinchuk if (!smb_sattr_check(op->fqi.fq_fattr.sa_dosattr, 538fb699f1eSAlek Pinchuk op->dattr)) { 539dc20a302Sas smb_node_release(node); 540dc20a302Sas smb_node_release(dnode); 5417b59d02dSjb return (NT_STATUS_ACCESS_DENIED); 542dc20a302Sas } 543dc20a302Sas 544fb699f1eSAlek Pinchuk if (smb_node_is_dir(node)) { 545fb699f1eSAlek Pinchuk smb_node_release(node); 546fb699f1eSAlek Pinchuk smb_node_release(dnode); 547fb699f1eSAlek Pinchuk return (NT_STATUS_ACCESS_DENIED); 548fb699f1eSAlek Pinchuk } 549da6c28aaSamw } 550da6c28aaSamw 551fb699f1eSAlek Pinchuk /* MS-FSA 2.1.5.1.2 */ 552fb699f1eSAlek Pinchuk if (op->create_disposition == FILE_SUPERSEDE) 553fb699f1eSAlek Pinchuk op->desired_access |= DELETE; 554fb699f1eSAlek Pinchuk if ((op->create_disposition == FILE_OVERWRITE_IF) || 555fb699f1eSAlek Pinchuk (op->create_disposition == FILE_OVERWRITE)) 556fb699f1eSAlek Pinchuk op->desired_access |= FILE_WRITE_DATA; 557fb699f1eSAlek Pinchuk 558da6c28aaSamw status = smb_fsop_access(sr, sr->user_cr, node, 559da6c28aaSamw op->desired_access); 560da6c28aaSamw if (status != NT_STATUS_SUCCESS) { 561da6c28aaSamw smb_node_release(node); 562da6c28aaSamw smb_node_release(dnode); 563dc20a302Sas 564a90cf9f2SGordon Ross /* SMB1 specific? NT_STATUS_PRIVILEGE_NOT_HELD */ 565da6c28aaSamw if (status == NT_STATUS_PRIVILEGE_NOT_HELD) { 5667b59d02dSjb return (status); 567da6c28aaSamw } else { 5687b59d02dSjb return (NT_STATUS_ACCESS_DENIED); 569da6c28aaSamw } 570da6c28aaSamw } 571da6c28aaSamw 572fb699f1eSAlek Pinchuk if (max_requested) { 573fb699f1eSAlek Pinchuk smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed); 574fb699f1eSAlek Pinchuk op->desired_access |= max_allowed; 575fb699f1eSAlek Pinchuk } 576a90cf9f2SGordon Ross /* 577a90cf9f2SGordon Ross * According to MS "dochelp" mail in Mar 2015, any handle 578a90cf9f2SGordon Ross * on which read or write access is granted implicitly 579a90cf9f2SGordon Ross * gets "read attributes", even if it was not requested. 580a90cf9f2SGordon Ross * This avoids unexpected access failures later that 581a90cf9f2SGordon Ross * would happen if these were not granted. 582a90cf9f2SGordon Ross */ 583a90cf9f2SGordon Ross if ((op->desired_access & FILE_DATA_ALL) != 0) { 584a90cf9f2SGordon Ross op->desired_access |= (READ_CONTROL | 585a90cf9f2SGordon Ross FILE_READ_ATTRIBUTES); 586a90cf9f2SGordon Ross } 587fb699f1eSAlek Pinchuk 588fb699f1eSAlek Pinchuk /* 589fb699f1eSAlek Pinchuk * Oplock break is done prior to sharing checks as the break 590fb699f1eSAlek Pinchuk * may cause other clients to close the file which would 591fb699f1eSAlek Pinchuk * affect the sharing checks. This may block, so set the 592fb699f1eSAlek Pinchuk * file opening count before oplock stuff. 593fb699f1eSAlek Pinchuk */ 594fb699f1eSAlek Pinchuk smb_node_inc_opening_count(node); 595fb699f1eSAlek Pinchuk smb_open_oplock_break(sr, node); 596fb699f1eSAlek Pinchuk 597fb699f1eSAlek Pinchuk smb_node_wrlock(node); 598fb699f1eSAlek Pinchuk 599fb699f1eSAlek Pinchuk /* 600fb699f1eSAlek Pinchuk * Check for sharing violations 601fb699f1eSAlek Pinchuk */ 602fb699f1eSAlek Pinchuk status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid, 603fb699f1eSAlek Pinchuk op->desired_access, op->share_access); 604fb699f1eSAlek Pinchuk if (status == NT_STATUS_SHARING_VIOLATION) { 605fb699f1eSAlek Pinchuk smb_node_unlock(node); 606fb699f1eSAlek Pinchuk smb_node_dec_opening_count(node); 607fb699f1eSAlek Pinchuk smb_node_release(node); 608fb699f1eSAlek Pinchuk smb_node_release(dnode); 609fb699f1eSAlek Pinchuk return (status); 610fb699f1eSAlek Pinchuk } 611fb699f1eSAlek Pinchuk 612fb699f1eSAlek Pinchuk /* 613fb699f1eSAlek Pinchuk * Go ahead with modifications as necessary. 614fb699f1eSAlek Pinchuk */ 615da6c28aaSamw switch (op->create_disposition) { 616da6c28aaSamw case FILE_SUPERSEDE: 617da6c28aaSamw case FILE_OVERWRITE_IF: 618da6c28aaSamw case FILE_OVERWRITE: 6192c1b14e5Sjose borrego op->dattr |= FILE_ATTRIBUTE_ARCHIVE; 620037cac00Sjoyce mcintosh /* Don't apply readonly bit until smb_ofile_close */ 6212c1b14e5Sjose borrego if (op->dattr & FILE_ATTRIBUTE_READONLY) { 6222c1b14e5Sjose borrego op->created_readonly = B_TRUE; 6232c1b14e5Sjose borrego op->dattr &= ~FILE_ATTRIBUTE_READONLY; 6242c1b14e5Sjose borrego } 6252c1b14e5Sjose borrego 626a90cf9f2SGordon Ross /* 627a90cf9f2SGordon Ross * Truncate the file data here. 628a90cf9f2SGordon Ross * We set alloc_size = op->dsize later, 629a90cf9f2SGordon Ross * after we have an ofile. See: 630a90cf9f2SGordon Ross * smb_set_open_attributes 631a90cf9f2SGordon Ross */ 632037cac00Sjoyce mcintosh bzero(&new_attr, sizeof (new_attr)); 633037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 634a90cf9f2SGordon Ross new_attr.sa_vattr.va_size = 0; 635037cac00Sjoyce mcintosh new_attr.sa_mask = SMB_AT_DOSATTR | SMB_AT_SIZE; 636037cac00Sjoyce mcintosh rc = smb_fsop_setattr(sr, sr->user_cr, node, &new_attr); 637037cac00Sjoyce mcintosh if (rc != 0) { 638037cac00Sjoyce mcintosh smb_fsop_unshrlock(sr->user_cr, node, uniq_fid); 639037cac00Sjoyce mcintosh smb_node_unlock(node); 640cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 641037cac00Sjoyce mcintosh smb_node_release(node); 642037cac00Sjoyce mcintosh smb_node_release(dnode); 643a90cf9f2SGordon Ross return (smb_errno2status(rc)); 644037cac00Sjoyce mcintosh } 6452c1b14e5Sjose borrego 646da6c28aaSamw /* 647037cac00Sjoyce mcintosh * If file is being replaced, remove existing streams 648da6c28aaSamw */ 649eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_IS_STREAM(node) == 0) { 650a90cf9f2SGordon Ross status = smb_fsop_remove_streams(sr, 651a90cf9f2SGordon Ross sr->user_cr, node); 652a90cf9f2SGordon Ross if (status != 0) { 653eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_fsop_unshrlock(sr->user_cr, node, 654eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States uniq_fid); 655eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(node); 656cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 657eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 658eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 659a90cf9f2SGordon Ross return (status); 660eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 661eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 662da6c28aaSamw 663da6c28aaSamw op->action_taken = SMB_OACT_TRUNCATED; 664da6c28aaSamw break; 665da6c28aaSamw 666da6c28aaSamw default: 667da6c28aaSamw /* 668da6c28aaSamw * FILE_OPEN or FILE_OPEN_IF. 669da6c28aaSamw */ 670a90cf9f2SGordon Ross /* 671a90cf9f2SGordon Ross * Ignore any user-specified alloc_size for 672a90cf9f2SGordon Ross * existing files, to avoid truncation in 673a90cf9f2SGordon Ross * smb_set_open_attributes 674a90cf9f2SGordon Ross */ 675a90cf9f2SGordon Ross op->dsize = 0L; 676da6c28aaSamw op->action_taken = SMB_OACT_OPENED; 677da6c28aaSamw break; 678da6c28aaSamw } 679da6c28aaSamw } else { 680da6c28aaSamw /* Last component was not found. */ 681eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States dnode = op->fqi.fq_dnode; 682da6c28aaSamw 6837b59d02dSjb if (is_dir == 0) 684eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States is_stream = smb_is_stream_name(pn->pn_path); 6857b59d02dSjb 686da6c28aaSamw if ((op->create_disposition == FILE_OPEN) || 687da6c28aaSamw (op->create_disposition == FILE_OVERWRITE)) { 688da6c28aaSamw smb_node_release(dnode); 6897b59d02dSjb return (NT_STATUS_OBJECT_NAME_NOT_FOUND); 690da6c28aaSamw } 691da6c28aaSamw 6929fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (pn->pn_fname && smb_is_invalid_filename(pn->pn_fname)) { 6932c2961f8Sjose borrego smb_node_release(dnode); 6942c2961f8Sjose borrego return (NT_STATUS_OBJECT_NAME_INVALID); 6952c2961f8Sjose borrego } 6962c2961f8Sjose borrego 697da6c28aaSamw /* 698da6c28aaSamw * lock the parent dir node in case another create 699da6c28aaSamw * request to the same parent directory comes in. 700da6c28aaSamw */ 7012c2961f8Sjose borrego smb_node_wrlock(dnode); 702da6c28aaSamw 703037cac00Sjoyce mcintosh /* Don't apply readonly bit until smb_ofile_close */ 704037cac00Sjoyce mcintosh if (op->dattr & FILE_ATTRIBUTE_READONLY) { 705037cac00Sjoyce mcintosh op->dattr &= ~FILE_ATTRIBUTE_READONLY; 706037cac00Sjoyce mcintosh op->created_readonly = B_TRUE; 707037cac00Sjoyce mcintosh } 708c8ec8eeaSjose borrego 709037cac00Sjoyce mcintosh bzero(&new_attr, sizeof (new_attr)); 710c8ec8eeaSjose borrego if ((op->crtime.tv_sec != 0) && 711c8ec8eeaSjose borrego (op->crtime.tv_sec != UINT_MAX)) { 712c8ec8eeaSjose borrego 713c8ec8eeaSjose borrego new_attr.sa_mask |= SMB_AT_CRTIME; 714c8ec8eeaSjose borrego new_attr.sa_crtime = op->crtime; 715c8ec8eeaSjose borrego } 716c8ec8eeaSjose borrego 717da6c28aaSamw if (is_dir == 0) { 718037cac00Sjoyce mcintosh op->dattr |= FILE_ATTRIBUTE_ARCHIVE; 719037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 720da6c28aaSamw new_attr.sa_vattr.va_type = VREG; 7217b59d02dSjb new_attr.sa_vattr.va_mode = is_stream ? S_IRUSR : 7227b59d02dSjb S_IRUSR | S_IRGRP | S_IROTH | 7237b59d02dSjb S_IWUSR | S_IWGRP | S_IWOTH; 724037cac00Sjoyce mcintosh new_attr.sa_mask |= 725037cac00Sjoyce mcintosh SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE; 726dc20a302Sas 727a90cf9f2SGordon Ross /* 728a90cf9f2SGordon Ross * We set alloc_size = op->dsize later, 729c5f48fa5SGordon Ross * (in smb_set_open_attributes) after we 730c5f48fa5SGordon Ross * have an ofile on which to save that. 731c5f48fa5SGordon Ross * 732c5f48fa5SGordon Ross * Legacy Open&X sets size to alloc_size 733c5f48fa5SGordon Ross * when creating a new file. 734a90cf9f2SGordon Ross */ 735c5f48fa5SGordon Ross if (sr->smb_com == SMB_COM_OPEN_ANDX) { 736c5f48fa5SGordon Ross new_attr.sa_vattr.va_size = op->dsize; 737c5f48fa5SGordon Ross new_attr.sa_mask |= SMB_AT_SIZE; 738c5f48fa5SGordon Ross } 739dc20a302Sas 740da6c28aaSamw rc = smb_fsop_create(sr, sr->user_cr, dnode, 741037cac00Sjoyce mcintosh op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode); 742dc20a302Sas 743da6c28aaSamw if (rc != 0) { 7442c2961f8Sjose borrego smb_node_unlock(dnode); 745da6c28aaSamw smb_node_release(dnode); 746a90cf9f2SGordon Ross return (smb_errno2status(rc)); 747da6c28aaSamw } 748da6c28aaSamw 749eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 750cb174861Sjoyce mcintosh smb_node_inc_opening_count(node); 7512c2961f8Sjose borrego smb_node_wrlock(node); 752dc20a302Sas 753faa1795aSjb status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid, 754c8ec8eeaSjose borrego op->desired_access, op->share_access); 755dc20a302Sas 756dc20a302Sas if (status == NT_STATUS_SHARING_VIOLATION) { 7572c2961f8Sjose borrego smb_node_unlock(node); 758cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 759037cac00Sjoyce mcintosh smb_delete_new_object(sr); 760dc20a302Sas smb_node_release(node); 7612c2961f8Sjose borrego smb_node_unlock(dnode); 762dc20a302Sas smb_node_release(dnode); 763dc20a302Sas return (status); 764dc20a302Sas } 765da6c28aaSamw } else { 7663db3f65cSamw op->dattr |= FILE_ATTRIBUTE_DIRECTORY; 767037cac00Sjoyce mcintosh new_attr.sa_dosattr = op->dattr; 768da6c28aaSamw new_attr.sa_vattr.va_type = VDIR; 769da6c28aaSamw new_attr.sa_vattr.va_mode = 0777; 770037cac00Sjoyce mcintosh new_attr.sa_mask |= 771037cac00Sjoyce mcintosh SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE; 772c8ec8eeaSjose borrego 773da6c28aaSamw rc = smb_fsop_mkdir(sr, sr->user_cr, dnode, 774037cac00Sjoyce mcintosh op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode); 775da6c28aaSamw if (rc != 0) { 7762c2961f8Sjose borrego smb_node_unlock(dnode); 777da6c28aaSamw smb_node_release(dnode); 778a90cf9f2SGordon Ross return (smb_errno2status(rc)); 779da6c28aaSamw } 780dc20a302Sas 781eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States node = op->fqi.fq_fnode; 782cb174861Sjoyce mcintosh smb_node_inc_opening_count(node); 7832c2961f8Sjose borrego smb_node_wrlock(node); 784da6c28aaSamw } 785da6c28aaSamw 786eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States created = B_TRUE; 787da6c28aaSamw op->action_taken = SMB_OACT_CREATED; 788c8ec8eeaSjose borrego 789fb699f1eSAlek Pinchuk if (max_requested) { 790fb699f1eSAlek Pinchuk smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed); 791fb699f1eSAlek Pinchuk op->desired_access |= max_allowed; 792fb699f1eSAlek Pinchuk } 793a90cf9f2SGordon Ross /* 794245d1332SMatt Barden * We created this object (we own it) so grant 795245d1332SMatt Barden * read_control + read_attributes on this handle, 796a90cf9f2SGordon Ross * even if that was not requested. This avoids 797245d1332SMatt Barden * unexpected access failures later. 798a90cf9f2SGordon Ross */ 799245d1332SMatt Barden op->desired_access |= (READ_CONTROL | FILE_READ_ATTRIBUTES); 800c8ec8eeaSjose borrego } 801c8ec8eeaSjose borrego 802037cac00Sjoyce mcintosh status = NT_STATUS_SUCCESS; 803c8ec8eeaSjose borrego 80468b2bbf2SGordon Ross of = smb_ofile_open(sr, node, op, SMB_FTYPE_DISK, uniq_fid, 8053b13a1efSThomas Keiser &err); 806da6c28aaSamw if (of == NULL) { 807037cac00Sjoyce mcintosh status = err.status; 808037cac00Sjoyce mcintosh } 809037cac00Sjoyce mcintosh 81068b2bbf2SGordon Ross /* 81168b2bbf2SGordon Ross * We might have blocked in smb_ofile_open long enough so a 81268b2bbf2SGordon Ross * tree disconnect might have happened. In that case, we've 81368b2bbf2SGordon Ross * just added an ofile to a tree that's disconnecting, and 81468b2bbf2SGordon Ross * need to undo that to avoid interfering with tear-down of 81568b2bbf2SGordon Ross * the tree connection. 81668b2bbf2SGordon Ross */ 81768b2bbf2SGordon Ross if (status == NT_STATUS_SUCCESS && 81868b2bbf2SGordon Ross !smb_tree_is_connected(sr->tid_tree)) { 81968b2bbf2SGordon Ross status = NT_STATUS_INVALID_PARAMETER; 820037cac00Sjoyce mcintosh } 821037cac00Sjoyce mcintosh 822037cac00Sjoyce mcintosh /* 823037cac00Sjoyce mcintosh * This MUST be done after ofile creation, so that explicitly 8245fd03bc0SGordon Ross * set timestamps can be remembered on the ofile, and the 8255fd03bc0SGordon Ross * readonly flag will be stored "pending" on the node. 826037cac00Sjoyce mcintosh */ 827037cac00Sjoyce mcintosh if (status == NT_STATUS_SUCCESS) { 8285fd03bc0SGordon Ross if ((rc = smb_set_open_attributes(sr, of)) != 0) { 829a90cf9f2SGordon Ross status = smb_errno2status(rc); 830037cac00Sjoyce mcintosh } 831037cac00Sjoyce mcintosh } 832037cac00Sjoyce mcintosh 833037cac00Sjoyce mcintosh if (status == NT_STATUS_SUCCESS) { 8345fd03bc0SGordon Ross /* 8355fd03bc0SGordon Ross * We've already done access checks above, 8365fd03bc0SGordon Ross * and want this call to succeed even when 8375fd03bc0SGordon Ross * !(desired_access & FILE_READ_ATTRIBUTES), 8385fd03bc0SGordon Ross * so pass kcred here. 8395fd03bc0SGordon Ross */ 8405fd03bc0SGordon Ross op->fqi.fq_fattr.sa_mask = SMB_AT_ALL; 8418622ec45SGordon Ross rc = smb_node_getattr(sr, node, zone_kcred(), of, 8425fd03bc0SGordon Ross &op->fqi.fq_fattr); 8435fd03bc0SGordon Ross if (rc != 0) { 844037cac00Sjoyce mcintosh status = NT_STATUS_INTERNAL_ERROR; 845037cac00Sjoyce mcintosh } 846da6c28aaSamw } 847da6c28aaSamw 848037cac00Sjoyce mcintosh /* 849037cac00Sjoyce mcintosh * smb_fsop_unshrlock is a no-op if node is a directory 850037cac00Sjoyce mcintosh * smb_fsop_unshrlock is done in smb_ofile_close 851037cac00Sjoyce mcintosh */ 852037cac00Sjoyce mcintosh if (status != NT_STATUS_SUCCESS) { 853037cac00Sjoyce mcintosh if (of == NULL) { 854037cac00Sjoyce mcintosh smb_fsop_unshrlock(sr->user_cr, node, uniq_fid); 855037cac00Sjoyce mcintosh } else { 856037cac00Sjoyce mcintosh smb_ofile_close(of, 0); 857037cac00Sjoyce mcintosh smb_ofile_release(of); 858037cac00Sjoyce mcintosh } 8598b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (created) 8608b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_delete_new_object(sr); 8618b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(node); 862cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 8638b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 8648b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (created) 8658b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_unlock(dnode); 8668b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(dnode); 867037cac00Sjoyce mcintosh return (status); 8688b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States } 8698b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 8708c10a865Sas /* 8718c10a865Sas * Propagate the write-through mode from the open params 8728c10a865Sas * to the node: see the notes in the function header. 8738c10a865Sas */ 8748c10a865Sas if (sr->sr_cfg->skc_sync_enable || 8758c10a865Sas (op->create_options & FILE_WRITE_THROUGH)) 8768c10a865Sas node->flags |= NODE_FLAGS_WRITE_THROUGH; 8778c10a865Sas 878037cac00Sjoyce mcintosh /* 879037cac00Sjoyce mcintosh * Set up the fileid and dosattr in open_param for response 880037cac00Sjoyce mcintosh */ 881eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->fileid = op->fqi.fq_fattr.sa_vattr.va_nodeid; 882037cac00Sjoyce mcintosh op->dattr = op->fqi.fq_fattr.sa_dosattr; 8838c10a865Sas 884da6c28aaSamw /* 885da6c28aaSamw * Set up the file type in open_param for the response 886da6c28aaSamw */ 887da6c28aaSamw op->ftype = SMB_FTYPE_DISK; 888da6c28aaSamw sr->smb_fid = of->f_fid; 889da6c28aaSamw sr->fid_ofile = of; 890da6c28aaSamw 8919fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States if (smb_node_is_file(node)) { 892cb174861Sjoyce mcintosh smb_oplock_acquire(sr, node, of); 893eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States op->dsize = op->fqi.fq_fattr.sa_vattr.va_size; 8949fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States } else { 8959fb67ea3Safshin salek ardakani - Sun Microsystems - Irvine United States /* directory or symlink */ 8962c2961f8Sjose borrego op->op_oplock_level = SMB_OPLOCK_NONE; 8972c2961f8Sjose borrego op->dsize = 0; 8982c2961f8Sjose borrego } 899dc20a302Sas 900cb174861Sjoyce mcintosh smb_node_dec_opening_count(node); 901cb174861Sjoyce mcintosh 902cb174861Sjoyce mcintosh smb_node_unlock(node); 903cb174861Sjoyce mcintosh if (created) 904cb174861Sjoyce mcintosh smb_node_unlock(dnode); 905cb174861Sjoyce mcintosh 9068b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_node_release(node); 907da6c28aaSamw smb_node_release(dnode); 908da6c28aaSamw 909da6c28aaSamw return (NT_STATUS_SUCCESS); 910da6c28aaSamw } 911da6c28aaSamw 912cb174861Sjoyce mcintosh /* 913cb174861Sjoyce mcintosh * smb_open_oplock_break 914cb174861Sjoyce mcintosh * 915cb174861Sjoyce mcintosh * If the node has an ofile opened with share access none, 916cb174861Sjoyce mcintosh * (smb_node_share_check = FALSE) only break BATCH oplock. 917cb174861Sjoyce mcintosh * Otherwise: 918cb174861Sjoyce mcintosh * If overwriting, break to SMB_OPLOCK_NONE, else 919cb174861Sjoyce mcintosh * If opening for anything other than attribute access, 920cb174861Sjoyce mcintosh * break oplock to LEVEL_II. 921cb174861Sjoyce mcintosh */ 922cb174861Sjoyce mcintosh static void 923cb174861Sjoyce mcintosh smb_open_oplock_break(smb_request_t *sr, smb_node_t *node) 924cb174861Sjoyce mcintosh { 925cb174861Sjoyce mcintosh smb_arg_open_t *op = &sr->sr_open; 926cb174861Sjoyce mcintosh uint32_t flags = 0; 927cb174861Sjoyce mcintosh 928cb174861Sjoyce mcintosh if (!smb_node_share_check(node)) 929cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_BATCH; 930cb174861Sjoyce mcintosh 931cb174861Sjoyce mcintosh if (smb_open_overwrite(op)) { 932cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_TO_NONE; 933cb174861Sjoyce mcintosh (void) smb_oplock_break(sr, node, flags); 934cb174861Sjoyce mcintosh } else if (!smb_open_attr_only(op)) { 935cb174861Sjoyce mcintosh flags |= SMB_OPLOCK_BREAK_TO_LEVEL_II; 936cb174861Sjoyce mcintosh (void) smb_oplock_break(sr, node, flags); 937cb174861Sjoyce mcintosh } 938cb174861Sjoyce mcintosh } 939cb174861Sjoyce mcintosh 940cb174861Sjoyce mcintosh /* 941cb174861Sjoyce mcintosh * smb_open_attr_only 942cb174861Sjoyce mcintosh * 943cb174861Sjoyce mcintosh * Determine if file is being opened for attribute access only. 944cb174861Sjoyce mcintosh * This is used to determine whether it is necessary to break 945cb174861Sjoyce mcintosh * existing oplocks on the file. 946cb174861Sjoyce mcintosh */ 947cb174861Sjoyce mcintosh static boolean_t 948cb174861Sjoyce mcintosh smb_open_attr_only(smb_arg_open_t *op) 949cb174861Sjoyce mcintosh { 950cb174861Sjoyce mcintosh if (((op->desired_access & ~(FILE_READ_ATTRIBUTES | 951fb699f1eSAlek Pinchuk FILE_WRITE_ATTRIBUTES | SYNCHRONIZE | READ_CONTROL)) == 0) && 952cb174861Sjoyce mcintosh (op->create_disposition != FILE_SUPERSEDE) && 953cb174861Sjoyce mcintosh (op->create_disposition != FILE_OVERWRITE)) { 954cb174861Sjoyce mcintosh return (B_TRUE); 955cb174861Sjoyce mcintosh } 956cb174861Sjoyce mcintosh return (B_FALSE); 957cb174861Sjoyce mcintosh } 958cb174861Sjoyce mcintosh 959cb174861Sjoyce mcintosh static boolean_t 960cb174861Sjoyce mcintosh smb_open_overwrite(smb_arg_open_t *op) 961cb174861Sjoyce mcintosh { 962cb174861Sjoyce mcintosh if ((op->create_disposition == FILE_SUPERSEDE) || 963cb174861Sjoyce mcintosh (op->create_disposition == FILE_OVERWRITE_IF) || 964cb174861Sjoyce mcintosh (op->create_disposition == FILE_OVERWRITE)) { 965cb174861Sjoyce mcintosh return (B_TRUE); 966cb174861Sjoyce mcintosh } 967cb174861Sjoyce mcintosh return (B_FALSE); 968cb174861Sjoyce mcintosh } 9695fd03bc0SGordon Ross 970037cac00Sjoyce mcintosh /* 9715fd03bc0SGordon Ross * smb_set_open_attributes 972037cac00Sjoyce mcintosh * 973037cac00Sjoyce mcintosh * Last write time: 974037cac00Sjoyce mcintosh * - If the last_write time specified in the open params is not 0 or -1, 975037cac00Sjoyce mcintosh * use it as file's mtime. This will be considered an explicitly set 976037cac00Sjoyce mcintosh * timestamps, not reset by subsequent writes. 977037cac00Sjoyce mcintosh * 9785fd03bc0SGordon Ross * DOS attributes 9795fd03bc0SGordon Ross * - If we created_readonly, we now store the real DOS attributes 9805fd03bc0SGordon Ross * (including the readonly bit) so subsequent opens will see it. 981037cac00Sjoyce mcintosh * 9825fd03bc0SGordon Ross * Both are stored "pending" rather than in the file system. 983037cac00Sjoyce mcintosh * 984037cac00Sjoyce mcintosh * Returns: errno 985037cac00Sjoyce mcintosh */ 986037cac00Sjoyce mcintosh static int 9875fd03bc0SGordon Ross smb_set_open_attributes(smb_request_t *sr, smb_ofile_t *of) 988037cac00Sjoyce mcintosh { 9895fd03bc0SGordon Ross smb_attr_t attr; 990148c5f43SAlan Wright smb_arg_open_t *op = &sr->sr_open; 991037cac00Sjoyce mcintosh smb_node_t *node = of->f_node; 9925fd03bc0SGordon Ross int rc = 0; 993037cac00Sjoyce mcintosh 994037cac00Sjoyce mcintosh bzero(&attr, sizeof (smb_attr_t)); 9955fd03bc0SGordon Ross 9965fd03bc0SGordon Ross if (op->created_readonly) { 9975fd03bc0SGordon Ross attr.sa_dosattr = op->dattr | FILE_ATTRIBUTE_READONLY; 9985fd03bc0SGordon Ross attr.sa_mask |= SMB_AT_DOSATTR; 9995fd03bc0SGordon Ross } 1000037cac00Sjoyce mcintosh 1001a90cf9f2SGordon Ross if (op->dsize != 0) { 1002a90cf9f2SGordon Ross attr.sa_allocsz = op->dsize; 1003a90cf9f2SGordon Ross attr.sa_mask |= SMB_AT_ALLOCSZ; 1004a90cf9f2SGordon Ross } 1005a90cf9f2SGordon Ross 1006037cac00Sjoyce mcintosh if ((op->mtime.tv_sec != 0) && (op->mtime.tv_sec != UINT_MAX)) { 1007037cac00Sjoyce mcintosh attr.sa_vattr.va_mtime = op->mtime; 10085fd03bc0SGordon Ross attr.sa_mask |= SMB_AT_MTIME; 1009037cac00Sjoyce mcintosh } 1010037cac00Sjoyce mcintosh 10115fd03bc0SGordon Ross /* 10125fd03bc0SGordon Ross * Used to have code here to set mtime, ctime, atime 10135fd03bc0SGordon Ross * when the open op->create_disposition is any of: 10145fd03bc0SGordon Ross * FILE_SUPERSEDE, FILE_OVERWRITE_IF, FILE_OVERWRITE. 10155fd03bc0SGordon Ross * We know that in those cases we will have set the 10165fd03bc0SGordon Ross * file size, in which case the file system will 10175fd03bc0SGordon Ross * update those times, so we don't have to. 10185fd03bc0SGordon Ross * 10195fd03bc0SGordon Ross * However, keep track of the fact that we modified 10205fd03bc0SGordon Ross * the file via this handle, so we can do the evil, 10215fd03bc0SGordon Ross * gratuitious mtime update on close that Windows 10225fd03bc0SGordon Ross * clients appear to expect. 10235fd03bc0SGordon Ross */ 10245fd03bc0SGordon Ross if (op->action_taken == SMB_OACT_TRUNCATED) 10255fd03bc0SGordon Ross of->f_written = B_TRUE; 1026037cac00Sjoyce mcintosh 10275fd03bc0SGordon Ross if (attr.sa_mask != 0) 10285fd03bc0SGordon Ross rc = smb_node_setattr(sr, node, of->f_cr, of, &attr); 1029037cac00Sjoyce mcintosh 1030037cac00Sjoyce mcintosh return (rc); 1031037cac00Sjoyce mcintosh } 1032037cac00Sjoyce mcintosh 1033da6c28aaSamw /* 10348b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States * This function is used to delete a newly created object (file or 10358b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States * directory) if an error occurs after creation of the object. 1036da6c28aaSamw */ 10378b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States static void 10388b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_delete_new_object(smb_request_t *sr) 1039da6c28aaSamw { 1040148c5f43SAlan Wright smb_arg_open_t *op = &sr->sr_open; 10418b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States smb_fqi_t *fqi = &(op->fqi); 10428b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States uint32_t flags = 0; 10438b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 10448b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_TREE_IS_CASEINSENSITIVE(sr)) 10458b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States flags |= SMB_IGNORE_CASE; 10468b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (SMB_TREE_SUPPORTS_CATIA(sr)) 10478b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States flags |= SMB_CATIA; 10488b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States 10498b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States if (op->create_options & FILE_DIRECTORY_FILE) 1050eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States (void) smb_fsop_rmdir(sr, sr->user_cr, fqi->fq_dnode, 1051eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States fqi->fq_last_comp, flags); 10528b2cc8acSafshin salek ardakani - Sun Microsystems - Irvine United States else 1053eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States (void) smb_fsop_remove(sr, sr->user_cr, fqi->fq_dnode, 1054eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States fqi->fq_last_comp, flags); 1055eb1d736bSafshin salek ardakani - Sun Microsystems - Irvine United States } 1056