1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2017 Nexenta Systems, Inc. All rights reserved. 24 */ 25 26 #include <smbsrv/smb_kproto.h> 27 28 #define SMB_CREATE_NAMEBUF_SZ 16 29 30 /* 31 * Create a new file, or truncate an existing file to zero length, 32 * open the file and return a fid. The file is specified using a 33 * fully qualified name relative to the tree. 34 */ 35 smb_sdrc_t 36 smb_pre_create(smb_request_t *sr) 37 { 38 struct open_param *op = &sr->arg.open; 39 int rc; 40 41 bzero(op, sizeof (sr->arg.open)); 42 43 rc = smbsr_decode_vwv(sr, "wl", &op->dattr, &op->mtime.tv_sec); 44 if (rc == 0) 45 rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path); 46 47 op->create_disposition = FILE_OVERWRITE_IF; 48 op->create_options = FILE_NON_DIRECTORY_FILE; 49 50 DTRACE_SMB_START(op__Create, smb_request_t *, sr); /* arg.open */ 51 52 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR); 53 } 54 55 void 56 smb_post_create(smb_request_t *sr) 57 { 58 DTRACE_SMB_DONE(op__Create, smb_request_t *, sr); 59 } 60 61 smb_sdrc_t 62 smb_com_create(smb_request_t *sr) 63 { 64 if (smb_common_create(sr) != NT_STATUS_SUCCESS) 65 return (SDRC_ERROR); 66 67 if (smbsr_encode_result(sr, 1, 0, "bww", 1, sr->smb_fid, 0)) 68 return (SDRC_ERROR); 69 70 return (SDRC_SUCCESS); 71 } 72 73 /* 74 * Create a new file and return a fid. The file is specified using 75 * a fully qualified name relative to the tree. 76 */ 77 smb_sdrc_t 78 smb_pre_create_new(smb_request_t *sr) 79 { 80 struct open_param *op = &sr->arg.open; 81 int rc; 82 83 bzero(op, sizeof (sr->arg.open)); 84 85 rc = smbsr_decode_vwv(sr, "wl", &op->dattr, &op->mtime.tv_sec); 86 if (rc == 0) 87 rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path); 88 89 op->create_disposition = FILE_CREATE; 90 91 DTRACE_SMB_START(op__CreateNew, smb_request_t *, sr); /* arg.open */ 92 93 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR); 94 } 95 96 void 97 smb_post_create_new(smb_request_t *sr) 98 { 99 DTRACE_SMB_DONE(op__CreateNew, smb_request_t *, sr); 100 } 101 102 smb_sdrc_t 103 smb_com_create_new(smb_request_t *sr) 104 { 105 if (smb_common_create(sr) != NT_STATUS_SUCCESS) 106 return (SDRC_ERROR); 107 108 if (smbsr_encode_result(sr, 1, 0, "bww", 1, sr->smb_fid, 0)) 109 return (SDRC_ERROR); 110 111 return (SDRC_SUCCESS); 112 } 113 114 /* 115 * Create a unique file in the specified directory relative to the 116 * current tree. No attributes are specified. 117 */ 118 smb_sdrc_t 119 smb_pre_create_temporary(smb_request_t *sr) 120 { 121 struct open_param *op = &sr->arg.open; 122 uint16_t reserved; 123 int rc; 124 125 bzero(op, sizeof (sr->arg.open)); 126 127 rc = smbsr_decode_vwv(sr, "wl", &reserved, &op->mtime.tv_sec); 128 if (rc == 0) 129 rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path); 130 131 op->create_disposition = FILE_CREATE; 132 133 DTRACE_SMB_START(op__CreateTemporary, smb_request_t *, sr); 134 135 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR); 136 } 137 138 void 139 smb_post_create_temporary(smb_request_t *sr) 140 { 141 DTRACE_SMB_DONE(op__CreateTemporary, smb_request_t *, sr); 142 } 143 144 smb_sdrc_t 145 smb_com_create_temporary(smb_request_t *sr) 146 { 147 static uint16_t tmp_id = 10000; 148 struct open_param *op = &sr->arg.open; 149 char name[SMB_CREATE_NAMEBUF_SZ]; 150 char *buf; 151 uint16_t bcc; 152 153 ++tmp_id; 154 bcc = 1; /* null terminator */ 155 bcc += snprintf(name, SMB_CREATE_NAMEBUF_SZ, "tt%05d.tmp", tmp_id); 156 157 buf = smb_srm_zalloc(sr, MAXPATHLEN); 158 (void) snprintf(buf, MAXPATHLEN, "%s\\%s", 159 op->fqi.fq_path.pn_path, name); 160 op->fqi.fq_path.pn_path = buf; 161 162 if (smb_common_create(sr) != NT_STATUS_SUCCESS) 163 return (SDRC_ERROR); 164 165 if (smbsr_encode_result(sr, 1, VAR_BCC, "bww%s", 1, sr->smb_fid, 166 VAR_BCC, sr, name)) 167 return (SDRC_ERROR); 168 169 return (SDRC_SUCCESS); 170 } 171 172 /* 173 * Common create file function. The file is opened in compatibility 174 * mode with read/write access. 175 */ 176 uint32_t 177 smb_common_create(smb_request_t *sr) 178 { 179 struct open_param *op = &sr->arg.open; 180 uint32_t status; 181 182 if ((op->mtime.tv_sec != 0) && (op->mtime.tv_sec != UINT_MAX)) 183 op->mtime.tv_sec = smb_time_local_to_gmt(sr, op->mtime.tv_sec); 184 op->mtime.tv_nsec = 0; 185 op->dsize = 0; 186 op->omode = SMB_DA_ACCESS_READ_WRITE | SMB_DA_SHARE_COMPATIBILITY; 187 op->desired_access = smb_omode_to_amask(op->omode); 188 op->share_access = smb_denymode_to_sharemode(op->omode, 189 op->fqi.fq_path.pn_path); 190 191 if (sr->smb_flg & SMB_FLAGS_OPLOCK) { 192 if (sr->smb_flg & SMB_FLAGS_OPLOCK_NOTIFY_ANY) 193 op->op_oplock_level = SMB_OPLOCK_BATCH; 194 else 195 op->op_oplock_level = SMB_OPLOCK_EXCLUSIVE; 196 } else { 197 op->op_oplock_level = SMB_OPLOCK_NONE; 198 } 199 200 status = smb_common_open(sr); 201 if (status == 0 && op->op_oplock_level != SMB_OPLOCK_NONE) { 202 /* Oplock req. in op->op_oplock_level etc. */ 203 smb1_oplock_acquire(sr, B_FALSE); 204 } 205 206 if (op->op_oplock_level == SMB_OPLOCK_NONE) { 207 sr->smb_flg &= 208 ~(SMB_FLAGS_OPLOCK | SMB_FLAGS_OPLOCK_NOTIFY_ANY); 209 } 210 211 if (status) 212 smbsr_status(sr, status, 0, 0); 213 214 return (status); 215 } 216