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 /* 23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright 2017 Nexenta Systems, Inc. All rights reserved. 25 */ 26 27 /* 28 * SMB requests. 29 * 30 * Request 31 * Header 32 * Magic 0xFF 'S' 'M' 'B' 33 * smb_com a byte, the "first" command 34 * Error a 4-byte union, ignored in a request 35 * smb_flg a one byte set of eight flags 36 * smb_flg2 a two byte set of 16 flags 37 * . twelve reserved bytes, have a role 38 * in connectionless transports (IPX, UDP?) 39 * smb_tid a 16-bit tree ID, a mount point sorta, 40 * 0xFFFF is this command does not have 41 * or require a tree context 42 * smb_pid a 16-bit process ID 43 * smb_uid a 16-bit user ID, specific to this "session" 44 * and mapped to a system (bona-fide) UID 45 * smb_mid a 16-bit multiplex ID, used to differentiate 46 * multiple simultaneous requests from the same 47 * process (pid) (ref RPC "xid") 48 * 49 * Chained (AndX) commands (0 or more) 50 * smb_wct a byte, number of 16-bit words containing 51 * command parameters, min 2 for chained command 52 * andx_com a byte, the "next" command, 0xFF for none 53 * . an unused byte 54 * andx_off a 16-bit offset, byte displacement from &Magic 55 * to the smb_wct field of the "next" command, 56 * ignore if andx_com is 0xFF, s/b 0 if no next 57 * smb_vwv[] 0 or more 16-bit (sorta) parameters for 58 * "this" command (i.e. smb_com if this is the 59 * first parameters, or the andx_com of the just 60 * previous block. 61 * smb_bcc a 16-bit count of smb_data[] bytes 62 * smb_data[] 0 or more bytes, format specific to commands 63 * padding[] Optional padding 64 * 65 * Last command 66 * smb_wct a byte, number of 16-bit words containing 67 * command parameters, min 0 for chained command 68 * smb_vwv[] 0 or more 16-bit (sorta) parameters for 69 * "this" command (i.e. smb_com if this is the 70 * first parameters, or the andx_com of the just 71 * previous block. 72 * smb_bcc a 16-bit count of smb_data[] bytes 73 * smb_data[] 0 or more bytes, format specific to commands 74 * 75 * Reply 76 * Header 77 * Magic 0xFF 'S' 'M' 'B' 78 * smb_com a byte, the "first" command, corresponds 79 * to request 80 * Error a 4-byte union, coding depends on dialect in use 81 * for "DOS" errors 82 * a byte for error class 83 * an unused byte 84 * a 16-bit word for error code 85 * for "NT" errors 86 * a 32-bit error code which 87 * is a packed class and specifier 88 * for "OS/2" errors 89 * I don't know 90 * The error information is specific to the 91 * last command in the reply chain. 92 * smb_flg a one byte set of eight flags, 0x80 bit set 93 * indicating this message is a reply 94 * smb_flg2 a two byte set of 16 flags 95 * . twelve reserved bytes, have a role 96 * in connectionless transports (IPX, UDP?) 97 * smb_tid a 16-bit tree ID, a mount point sorta, 98 * should be the same as the request 99 * smb_pid a 16-bit process ID, MUST BE the same as request 100 * smb_uid a 16-bit user ID, specific to this "session" 101 * and mapped to a system (bona-fide) UID, 102 * should be the same as request 103 * smb_mid a 16-bit multiplex ID, used to differentiate 104 * multiple simultaneous requests from the same 105 * process (pid) (ref RPC "xid"), MUST BE the 106 * same as request 107 * padding[] Optional padding 108 * 109 * Chained (AndX) commands (0 or more) 110 * smb_wct a byte, number of 16-bit words containing 111 * command parameters, min 2 for chained command, 112 * andx_com a byte, the "next" command, 0xFF for none, 113 * corresponds to request, if this is the chained 114 * command that had an error set to 0xFF 115 * . an unused byte 116 * andx_off a 16-bit offset, byte displacement from &Magic 117 * to the smb_wct field of the "next" command, 118 * ignore if andx_com is 0xFF, s/b 0 if no next 119 * smb_vwv[] 0 or more 16-bit (sorta) parameters for 120 * "this" command (i.e. smb_com if this is the 121 * first parameters, or the andx_com of the just 122 * previous block. Empty if an error. 123 * smb_bcc a 16-bit count of smb_data[] bytes 124 * smb_data[] 0 or more bytes, format specific to commands 125 * empty if an error. 126 * 127 * Last command 128 * smb_wct a byte, number of 16-bit words containing 129 * command parameters, min 0 for chained command 130 * smb_vwv[] 0 or more 16-bit (sorta) parameters for 131 * "this" command (i.e. smb_com if this is the 132 * first parameters, or the andx_com of the just 133 * previous block, empty if an error. 134 * smb_bcc a 16-bit count of smb_data[] bytes 135 * smb_data[] 0 or more bytes, format specific to commands, 136 * empty if an error. 137 */ 138 139 #include <smbsrv/smb_kproto.h> 140 #include <smbsrv/smb_kstat.h> 141 #include <sys/sdt.h> 142 #include <sys/spl.h> 143 144 static int is_andx_com(unsigned char); 145 static int smbsr_check_result(struct smb_request *, int, int); 146 static void smb1_tq_work(void *); 147 148 static const smb_disp_entry_t 149 smb_disp_table[SMB_COM_NUM] = { 150 { "SmbCreateDirectory", SMB_SDT_OPS(create_directory), /* 0x00 000 */ 151 0x00, PC_NETWORK_PROGRAM_1_0 }, 152 { "SmbDeleteDirectory", SMB_SDT_OPS(delete_directory), /* 0x01 001 */ 153 0x01, PC_NETWORK_PROGRAM_1_0 }, 154 { "SmbOpen", SMB_SDT_OPS(open), /* 0x02 002 */ 155 0x02, PC_NETWORK_PROGRAM_1_0 }, 156 { "SmbCreate", SMB_SDT_OPS(create), /* 0x03 003 */ 157 0x03, PC_NETWORK_PROGRAM_1_0 }, 158 { "SmbClose", SMB_SDT_OPS(close), /* 0x04 004 */ 159 0x04, PC_NETWORK_PROGRAM_1_0 }, 160 { "SmbFlush", SMB_SDT_OPS(flush), /* 0x05 005 */ 161 0x05, PC_NETWORK_PROGRAM_1_0 }, 162 { "SmbDelete", SMB_SDT_OPS(delete), /* 0x06 006 */ 163 0x06, PC_NETWORK_PROGRAM_1_0 }, 164 { "SmbRename", SMB_SDT_OPS(rename), /* 0x07 007 */ 165 0x07, PC_NETWORK_PROGRAM_1_0 }, 166 { "SmbQueryInformation", SMB_SDT_OPS(query_information), /* 0x08 008 */ 167 0x08, PC_NETWORK_PROGRAM_1_0 }, 168 { "SmbSetInformation", SMB_SDT_OPS(set_information), /* 0x09 009 */ 169 0x09, PC_NETWORK_PROGRAM_1_0 }, 170 { "SmbRead", SMB_SDT_OPS(read), /* 0x0A 010 */ 171 0x0A, PC_NETWORK_PROGRAM_1_0 }, 172 { "SmbWrite", SMB_SDT_OPS(write), /* 0x0B 011 */ 173 0x0B, PC_NETWORK_PROGRAM_1_0 }, 174 { "SmbLockByteRange", SMB_SDT_OPS(lock_byte_range), /* 0x0C 012 */ 175 0x0C, PC_NETWORK_PROGRAM_1_0 }, 176 { "SmbUnlockByteRange", SMB_SDT_OPS(unlock_byte_range), /* 0x0D 013 */ 177 0x0D, PC_NETWORK_PROGRAM_1_0 }, 178 { "SmbCreateTemporary", SMB_SDT_OPS(create_temporary), /* 0x0E 014 */ 179 0x0E, PC_NETWORK_PROGRAM_1_0 }, 180 { "SmbCreateNew", SMB_SDT_OPS(create_new), /* 0x0F 015 */ 181 0x0F, PC_NETWORK_PROGRAM_1_0 }, 182 { "SmbCheckDirectory", SMB_SDT_OPS(check_directory), /* 0x10 016 */ 183 0x10, PC_NETWORK_PROGRAM_1_0 }, 184 { "SmbProcessExit", SMB_SDT_OPS(process_exit), /* 0x11 017 */ 185 0x11, PC_NETWORK_PROGRAM_1_0, 186 SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID }, 187 { "SmbSeek", SMB_SDT_OPS(seek), /* 0x12 018 */ 188 0x12, PC_NETWORK_PROGRAM_1_0 }, 189 { "SmbLockAndRead", SMB_SDT_OPS(lock_and_read), /* 0x13 019 */ 190 0x13, LANMAN1_0 }, 191 { "SmbWriteAndUnlock", SMB_SDT_OPS(write_and_unlock), /* 0x14 020 */ 192 0x14, LANMAN1_0 }, 193 { "Invalid", SMB_SDT_OPS(invalid), 0x15, 0 }, /* 0x15 021 */ 194 { "Invalid", SMB_SDT_OPS(invalid), 0x16, 0 }, /* 0x16 022 */ 195 { "Invalid", SMB_SDT_OPS(invalid), 0x17, 0 }, /* 0x17 023 */ 196 { "Invalid", SMB_SDT_OPS(invalid), 0x18, 0 }, /* 0x18 024 */ 197 { "Invalid", SMB_SDT_OPS(invalid), 0x19, 0 }, /* 0x19 025 */ 198 { "SmbReadRaw", SMB_SDT_OPS(read_raw), /* 0x1A 026 */ 199 0x1A, LANMAN1_0 }, 200 { "Invalid", SMB_SDT_OPS(invalid), 0x1B, 0 }, /* 0x1B 027 */ 201 { "Invalid", SMB_SDT_OPS(invalid), 0x1C, 0 }, /* 0x1C 028 */ 202 { "SmbWriteRaw", SMB_SDT_OPS(write_raw), /* 0x1D 029 */ 203 0x1D, LANMAN1_0 }, 204 { "Invalid", SMB_SDT_OPS(invalid), 0x1E, 0 }, /* 0x1E 030 */ 205 { "Invalid", SMB_SDT_OPS(invalid), 0x1F, 0 }, /* 0x1F 031 */ 206 { "Invalid", SMB_SDT_OPS(invalid), 0x20, 0 }, /* 0x20 032 */ 207 { "Invalid", SMB_SDT_OPS(invalid), 0x21, 0 }, /* 0x21 033 */ 208 { "SmbSetInformation2", SMB_SDT_OPS(set_information2), /* 0x22 034 */ 209 0x22, LANMAN1_0 }, 210 { "SmbQueryInformation2", 211 SMB_SDT_OPS(query_information2), /* 0x23 035 */ 212 0x23, LANMAN1_0 }, 213 { "SmbLockingX", SMB_SDT_OPS(locking_andx), /* 0x24 036 */ 214 0x24, LANMAN1_0 }, 215 { "SmbTransaction", SMB_SDT_OPS(transaction), /* 0x25 037 */ 216 0x25, LANMAN1_0 }, 217 { "SmbTransactionSecondary", 218 SMB_SDT_OPS(transaction_secondary), /* 0x26 038 */ 219 0x26, LANMAN1_0 }, 220 { "SmbIoctl", SMB_SDT_OPS(ioctl), /* 0x27 039 */ 221 0x27, LANMAN1_0 }, 222 { "Invalid", SMB_SDT_OPS(invalid), 0x28, 0 }, /* 0x28 040 */ 223 { "Invalid", SMB_SDT_OPS(invalid), 0x29, 0 }, /* 0x29 041 */ 224 { "Invalid", SMB_SDT_OPS(invalid), 0x2A, 0 }, /* 0x2A 042 */ 225 { "SmbEcho", SMB_SDT_OPS(echo), /* 0x2B 043 */ 226 0x2B, LANMAN1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID }, 227 { "SmbWriteAndClose", SMB_SDT_OPS(write_and_close), /* 0x2C 044 */ 228 0x2C, LANMAN1_0 }, 229 { "SmbOpenX", SMB_SDT_OPS(open_andx), /* 0x2D 045 */ 230 0x2D, LANMAN1_0 }, 231 { "SmbReadX", SMB_SDT_OPS(read_andx), /* 0x2E 046 */ 232 0x2E, LANMAN1_0 }, 233 { "SmbWriteX", SMB_SDT_OPS(write_andx), /* 0x2F 047 */ 234 0x2F, LANMAN1_0 }, 235 { "Invalid", SMB_SDT_OPS(invalid), 0x30, 0 }, /* 0x30 048 */ 236 { "SmbCloseAndTreeDisconnect", 237 SMB_SDT_OPS(close_and_tree_disconnect), /* 0x31 049 */ 238 0x31, LANMAN1_0 }, 239 { "SmbTransaction2", SMB_SDT_OPS(transaction2), /* 0x32 050 */ 240 0x32, LM1_2X002 }, 241 { "SmbTransaction2Secondary", 242 SMB_SDT_OPS(transaction2_secondary), /* 0x33 051 */ 243 0x33, LM1_2X002 }, 244 { "SmbFindClose2", SMB_SDT_OPS(find_close2), /* 0x34 052 */ 245 0x34, LM1_2X002 }, 246 { "Invalid", SMB_SDT_OPS(invalid), 0x35, 0 }, /* 0x35 053 */ 247 { "Invalid", SMB_SDT_OPS(invalid), 0x36, 0 }, /* 0x36 054 */ 248 { "Invalid", SMB_SDT_OPS(invalid), 0x37, 0 }, /* 0x37 055 */ 249 { "Invalid", SMB_SDT_OPS(invalid), 0x38, 0 }, /* 0x38 056 */ 250 { "Invalid", SMB_SDT_OPS(invalid), 0x39, 0 }, /* 0x39 057 */ 251 { "Invalid", SMB_SDT_OPS(invalid), 0x3A, 0 }, /* 0x3A 058 */ 252 { "Invalid", SMB_SDT_OPS(invalid), 0x3B, 0 }, /* 0x3B 059 */ 253 { "Invalid", SMB_SDT_OPS(invalid), 0x3C, 0 }, /* 0x3C 060 */ 254 { "Invalid", SMB_SDT_OPS(invalid), 0x3D, 0 }, /* 0x3D 061 */ 255 { "Invalid", SMB_SDT_OPS(invalid), 0x3E, 0 }, /* 0x3E 062 */ 256 { "Invalid", SMB_SDT_OPS(invalid), 0x3F, 0 }, /* 0x3F 063 */ 257 { "Invalid", SMB_SDT_OPS(invalid), 0x40, 0 }, /* 0x40 064 */ 258 { "Invalid", SMB_SDT_OPS(invalid), 0x47, 0 }, /* 0x47 065 */ 259 { "Invalid", SMB_SDT_OPS(invalid), 0x48, 0 }, /* 0x48 066 */ 260 { "Invalid", SMB_SDT_OPS(invalid), 0x49, 0 }, /* 0x49 067 */ 261 { "Invalid", SMB_SDT_OPS(invalid), 0x44, 0 }, /* 0x44 068 */ 262 { "Invalid", SMB_SDT_OPS(invalid), 0x45, 0 }, /* 0x45 069 */ 263 { "Invalid", SMB_SDT_OPS(invalid), 0x46, 0 }, /* 0x46 070 */ 264 { "Invalid", SMB_SDT_OPS(invalid), 0x47, 0 }, /* 0x47 071 */ 265 { "Invalid", SMB_SDT_OPS(invalid), 0x48, 0 }, /* 0x48 072 */ 266 { "Invalid", SMB_SDT_OPS(invalid), 0x49, 0 }, /* 0x49 073 */ 267 { "Invalid", SMB_SDT_OPS(invalid), 0x4A, 0 }, /* 0x4A 074 */ 268 { "Invalid", SMB_SDT_OPS(invalid), 0x4B, 0 }, /* 0x4B 075 */ 269 { "Invalid", SMB_SDT_OPS(invalid), 0x4C, 0 }, /* 0x4C 076 */ 270 { "Invalid", SMB_SDT_OPS(invalid), 0x4D, 0 }, /* 0x4D 077 */ 271 { "Invalid", SMB_SDT_OPS(invalid), 0x4E, 0 }, /* 0x4E 078 */ 272 { "Invalid", SMB_SDT_OPS(invalid), 0x4F, 0 }, /* 0x4F 079 */ 273 { "Invalid", SMB_SDT_OPS(invalid), 0x50, 0 }, /* 0x50 080 */ 274 { "Invalid", SMB_SDT_OPS(invalid), 0x51, 0 }, /* 0x51 081 */ 275 { "Invalid", SMB_SDT_OPS(invalid), 0x52, 0 }, /* 0x52 082 */ 276 { "Invalid", SMB_SDT_OPS(invalid), 0x53, 0 }, /* 0x53 083 */ 277 { "Invalid", SMB_SDT_OPS(invalid), 0x54, 0 }, /* 0x54 084 */ 278 { "Invalid", SMB_SDT_OPS(invalid), 0x55, 0 }, /* 0x55 085 */ 279 { "Invalid", SMB_SDT_OPS(invalid), 0x56, 0 }, /* 0x56 086 */ 280 { "Invalid", SMB_SDT_OPS(invalid), 0x57, 0 }, /* 0x57 087 */ 281 { "Invalid", SMB_SDT_OPS(invalid), 0x58, 0 }, /* 0x58 088 */ 282 { "Invalid", SMB_SDT_OPS(invalid), 0x59, 0 }, /* 0x59 089 */ 283 { "Invalid", SMB_SDT_OPS(invalid), 0x5A, 0 }, /* 0x5A 090 */ 284 { "Invalid", SMB_SDT_OPS(invalid), 0x5B, 0 }, /* 0x5B 091 */ 285 { "Invalid", SMB_SDT_OPS(invalid), 0x5C, 0 }, /* 0x5C 092 */ 286 { "Invalid", SMB_SDT_OPS(invalid), 0x5D, 0 }, /* 0x5D 093 */ 287 { "Invalid", SMB_SDT_OPS(invalid), 0x5E, 0 }, /* 0x5E 094 */ 288 { "Invalid", SMB_SDT_OPS(invalid), 0x5F, 0 }, /* 0x5F 095 */ 289 { "Invalid", SMB_SDT_OPS(invalid), 0x60, 0 }, /* 0x60 096 */ 290 { "Invalid", SMB_SDT_OPS(invalid), 0x61, 0 }, /* 0x61 097 */ 291 { "Invalid", SMB_SDT_OPS(invalid), 0x62, 0 }, /* 0x62 098 */ 292 { "Invalid", SMB_SDT_OPS(invalid), 0x63, 0 }, /* 0x63 099 */ 293 { "Invalid", SMB_SDT_OPS(invalid), 0x64, 0 }, /* 0x64 100 */ 294 { "Invalid", SMB_SDT_OPS(invalid), 0x65, 0 }, /* 0x65 101 */ 295 { "Invalid", SMB_SDT_OPS(invalid), 0x66, 0 }, /* 0x66 102 */ 296 { "Invalid", SMB_SDT_OPS(invalid), 0x67, 0 }, /* 0x67 103 */ 297 { "Invalid", SMB_SDT_OPS(invalid), 0x68, 0 }, /* 0x68 104 */ 298 { "Invalid", SMB_SDT_OPS(invalid), 0x69, 0 }, /* 0x69 105 */ 299 { "Invalid", SMB_SDT_OPS(invalid), 0x6A, 0 }, /* 0x6A 106 */ 300 { "Invalid", SMB_SDT_OPS(invalid), 0x6B, 0 }, /* 0x6B 107 */ 301 { "Invalid", SMB_SDT_OPS(invalid), 0x6C, 0 }, /* 0x6C 108 */ 302 { "Invalid", SMB_SDT_OPS(invalid), 0x6D, 0 }, /* 0x6D 109 */ 303 { "Invalid", SMB_SDT_OPS(invalid), 0x6E, 0 }, /* 0x6E 110 */ 304 { "Invalid", SMB_SDT_OPS(invalid), 0x6F, 0 }, /* 0x6F 111 */ 305 { "SmbTreeConnect", SMB_SDT_OPS(tree_connect), /* 0x70 112 */ 306 0x70, PC_NETWORK_PROGRAM_1_0, SDDF_SUPPRESS_TID }, 307 { "SmbTreeDisconnect", SMB_SDT_OPS(tree_disconnect), /* 0x71 113 */ 308 0x71, PC_NETWORK_PROGRAM_1_0, 309 SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID }, 310 /* 311 * NB: Negotiate gets special handling via 312 * smb_initial_request_handler. After that, 313 * another Negotiate is an invalid request. 314 */ 315 { "SmbNegotiate", SMB_SDT_OPS(invalid), /* 0x72 114 */ 316 0x72, PC_NETWORK_PROGRAM_1_0, 317 SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID }, 318 { "SmbSessionSetupX", SMB_SDT_OPS(session_setup_andx), /* 0x73 115 */ 319 0x73, LANMAN1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID }, 320 { "SmbLogoffX", SMB_SDT_OPS(logoff_andx), /* 0x74 116 */ 321 0x74, LM1_2X002, SDDF_SUPPRESS_TID }, 322 { "SmbTreeConnectX", SMB_SDT_OPS(tree_connect_andx), /* 0x75 117 */ 323 0x75, LANMAN1_0, SDDF_SUPPRESS_TID }, 324 { "Invalid", SMB_SDT_OPS(invalid), 0x76, 0, 0 }, /* 0x76 118 */ 325 { "Invalid", SMB_SDT_OPS(invalid), 0x77, 0, 0 }, /* 0x77 119 */ 326 { "Invalid", SMB_SDT_OPS(invalid), 0x78, 0, 0 }, /* 0x78 120 */ 327 { "Invalid", SMB_SDT_OPS(invalid), 0x79, 0, 0 }, /* 0x79 121 */ 328 { "Invalid", SMB_SDT_OPS(invalid), 0x7A, 0, 0 }, /* 0x7A 122 */ 329 { "Invalid", SMB_SDT_OPS(invalid), 0x7B, 0, 0 }, /* 0x7B 123 */ 330 { "Invalid", SMB_SDT_OPS(invalid), 0x7C, 0, 0 }, /* 0x7C 124 */ 331 { "Invalid", SMB_SDT_OPS(invalid), 0x7D, 0, 0 }, /* 0x7D 125 */ 332 { "Invalid", SMB_SDT_OPS(invalid), 0x7E, 0, 0 }, /* 0x7E 126 */ 333 { "Invalid", SMB_SDT_OPS(invalid), 0x7F, 0, 0 }, /* 0x7F 127 */ 334 { "SmbQueryInformationDisk", 335 SMB_SDT_OPS(query_information_disk), /* 0x80 128 */ 336 0x80, PC_NETWORK_PROGRAM_1_0, 0 }, 337 { "SmbSearch", SMB_SDT_OPS(search), /* 0x81 129 */ 338 0x81, PC_NETWORK_PROGRAM_1_0, 0 }, 339 { "SmbFind", SMB_SDT_OPS(find), /* 0x82 130 */ 340 0x82, LANMAN1_0, 0 }, 341 { "SmbFindUnique", SMB_SDT_OPS(find_unique), /* 0x83 131 */ 342 0x83, LANMAN1_0, 0 }, 343 { "SmbFindClose", SMB_SDT_OPS(find_close), /* 0x84 132 */ 344 0x84, LANMAN1_0, 0 }, 345 { "Invalid", SMB_SDT_OPS(invalid), 0x85, 0, 0 }, /* 0x85 133 */ 346 { "Invalid", SMB_SDT_OPS(invalid), 0x86, 0, 0 }, /* 0x86 134 */ 347 { "Invalid", SMB_SDT_OPS(invalid), 0x87, 0, 0 }, /* 0x87 135 */ 348 { "Invalid", SMB_SDT_OPS(invalid), 0x88, 0, 0 }, /* 0x88 136 */ 349 { "Invalid", SMB_SDT_OPS(invalid), 0x89, 0, 0 }, /* 0x89 137 */ 350 { "Invalid", SMB_SDT_OPS(invalid), 0x8A, 0, 0 }, /* 0x8A 138 */ 351 { "Invalid", SMB_SDT_OPS(invalid), 0x8B, 0, 0 }, /* 0x8B 139 */ 352 { "Invalid", SMB_SDT_OPS(invalid), 0x8C, 0, 0 }, /* 0x8C 140 */ 353 { "Invalid", SMB_SDT_OPS(invalid), 0x8D, 0, 0 }, /* 0x8D 141 */ 354 { "Invalid", SMB_SDT_OPS(invalid), 0x8E, 0, 0 }, /* 0x8E 142 */ 355 { "Invalid", SMB_SDT_OPS(invalid), 0x8F, 0, 0 }, /* 0x8F 143 */ 356 { "Invalid", SMB_SDT_OPS(invalid), 0x90, 0, 0 }, /* 0x90 144 */ 357 { "Invalid", SMB_SDT_OPS(invalid), 0x91, 0, 0 }, /* 0x91 145 */ 358 { "Invalid", SMB_SDT_OPS(invalid), 0x92, 0, 0 }, /* 0x92 146 */ 359 { "Invalid", SMB_SDT_OPS(invalid), 0x93, 0, 0 }, /* 0x93 147 */ 360 { "Invalid", SMB_SDT_OPS(invalid), 0x94, 0, 0 }, /* 0x94 148 */ 361 { "Invalid", SMB_SDT_OPS(invalid), 0x95, 0, 0 }, /* 0x95 149 */ 362 { "Invalid", SMB_SDT_OPS(invalid), 0x96, 0, 0 }, /* 0x96 150 */ 363 { "Invalid", SMB_SDT_OPS(invalid), 0x97, 0, 0 }, /* 0x97 151 */ 364 { "Invalid", SMB_SDT_OPS(invalid), 0x98, 0, 0 }, /* 0x98 152 */ 365 { "Invalid", SMB_SDT_OPS(invalid), 0x99, 0, 0 }, /* 0x99 153 */ 366 { "Invalid", SMB_SDT_OPS(invalid), 0x9A, 0, 0 }, /* 0x9A 154 */ 367 { "Invalid", SMB_SDT_OPS(invalid), 0x9B, 0, 0 }, /* 0x9B 155 */ 368 { "Invalid", SMB_SDT_OPS(invalid), 0x9C, 0, 0 }, /* 0x9C 156 */ 369 { "Invalid", SMB_SDT_OPS(invalid), 0x9D, 0, 0 }, /* 0x9D 157 */ 370 { "Invalid", SMB_SDT_OPS(invalid), 0x9E, 0, 0 }, /* 0x9E 158 */ 371 { "Invalid", SMB_SDT_OPS(invalid), 0x9F, 0, 0 }, /* 0x9F 159 */ 372 { "SmbNtTransact", SMB_SDT_OPS(nt_transact), /* 0xA0 160 */ 373 0xA0, NT_LM_0_12, 0 }, 374 { "SmbNtTransactSecondary", 375 SMB_SDT_OPS(nt_transact_secondary), /* 0xA1 161 */ 376 0xA1, NT_LM_0_12, 0 }, 377 { "SmbNtCreateX", SMB_SDT_OPS(nt_create_andx), /* 0xA2 162 */ 378 0xA2, NT_LM_0_12, 0 }, 379 { "Invalid", SMB_SDT_OPS(invalid), 0xA3, 0, 0 }, /* 0xA3 163 */ 380 { "SmbNtCancel", SMB_SDT_OPS(nt_cancel), /* 0xA4 164 */ 381 0xA4, NT_LM_0_12, 0 }, 382 { "SmbNtRename", SMB_SDT_OPS(nt_rename), /* 0xA5 165 */ 383 0xA5, NT_LM_0_12, 0 }, 384 { "Invalid", SMB_SDT_OPS(invalid), 0xA6, 0, 0 }, /* 0xA6 166 */ 385 { "Invalid", SMB_SDT_OPS(invalid), 0xA7, 0, 0 }, /* 0xA7 167 */ 386 { "Invalid", SMB_SDT_OPS(invalid), 0xA8, 0, 0 }, /* 0xA8 168 */ 387 { "Invalid", SMB_SDT_OPS(invalid), 0xA9, 0, 0 }, /* 0xA9 169 */ 388 { "Invalid", SMB_SDT_OPS(invalid), 0xAA, 0, 0 }, /* 0xAA 170 */ 389 { "Invalid", SMB_SDT_OPS(invalid), 0xAB, 0, 0 }, /* 0xAB 171 */ 390 { "Invalid", SMB_SDT_OPS(invalid), 0xAC, 0, 0 }, /* 0xAC 172 */ 391 { "Invalid", SMB_SDT_OPS(invalid), 0xAD, 0, 0 }, /* 0xAD 173 */ 392 { "Invalid", SMB_SDT_OPS(invalid), 0xAE, 0, 0 }, /* 0xAE 174 */ 393 { "Invalid", SMB_SDT_OPS(invalid), 0xAF, 0, 0 }, /* 0xAF 175 */ 394 { "Invalid", SMB_SDT_OPS(invalid), 0xB0, 0, 0 }, /* 0xB0 176 */ 395 { "Invalid", SMB_SDT_OPS(invalid), 0xB1, 0, 0 }, /* 0xB1 177 */ 396 { "Invalid", SMB_SDT_OPS(invalid), 0xB2, 0, 0 }, /* 0xB2 178 */ 397 { "Invalid", SMB_SDT_OPS(invalid), 0xB3, 0, 0 }, /* 0xB3 179 */ 398 { "Invalid", SMB_SDT_OPS(invalid), 0xB4, 0, 0 }, /* 0xB4 180 */ 399 { "Invalid", SMB_SDT_OPS(invalid), 0xB5, 0, 0 }, /* 0xB5 181 */ 400 { "Invalid", SMB_SDT_OPS(invalid), 0xB6, 0, 0 }, /* 0xB6 182 */ 401 { "Invalid", SMB_SDT_OPS(invalid), 0xB7, 0, 0 }, /* 0xB7 183 */ 402 { "Invalid", SMB_SDT_OPS(invalid), 0xB8, 0, 0 }, /* 0xB8 184 */ 403 { "Invalid", SMB_SDT_OPS(invalid), 0xB9, 0, 0 }, /* 0xB9 185 */ 404 { "Invalid", SMB_SDT_OPS(invalid), 0xBA, 0, 0 }, /* 0xBA 186 */ 405 { "Invalid", SMB_SDT_OPS(invalid), 0xBB, 0, 0 }, /* 0xBB 187 */ 406 { "Invalid", SMB_SDT_OPS(invalid), 0xBC, 0, 0 }, /* 0xBC 188 */ 407 { "Invalid", SMB_SDT_OPS(invalid), 0xBD, 0, 0 }, /* 0xBD 189 */ 408 { "Invalid", SMB_SDT_OPS(invalid), 0xBE, 0, 0 }, /* 0xBE 190 */ 409 { "Invalid", SMB_SDT_OPS(invalid), 0xBF, 0, 0 }, /* 0xBF 191 */ 410 { "SmbOpenPrintFile", SMB_SDT_OPS(open_print_file), /* 0xC0 192 */ 411 0xC0, PC_NETWORK_PROGRAM_1_0, 0 }, 412 { "SmbWritePrintFile", SMB_SDT_OPS(write_print_file), /* 0xC1 193 */ 413 0xC1, PC_NETWORK_PROGRAM_1_0, 0 }, 414 { "SmbClosePrintFile", SMB_SDT_OPS(close_print_file), /* 0xC2 194 */ 415 0xC2, PC_NETWORK_PROGRAM_1_0, 0 }, 416 { "SmbGetPrintQueue", SMB_SDT_OPS(get_print_queue), /* 0xC3 195 */ 417 0xC3, PC_NETWORK_PROGRAM_1_0, 0 }, 418 { "Invalid", SMB_SDT_OPS(invalid), 0xC4, 0, 0 }, /* 0xC4 196 */ 419 { "Invalid", SMB_SDT_OPS(invalid), 0xC5, 0, 0 }, /* 0xC5 197 */ 420 { "Invalid", SMB_SDT_OPS(invalid), 0xC6, 0, 0 }, /* 0xC6 198 */ 421 { "Invalid", SMB_SDT_OPS(invalid), 0xC7, 0, 0 }, /* 0xC7 199 */ 422 { "Invalid", SMB_SDT_OPS(invalid), 0xC8, 0, 0 }, /* 0xC8 200 */ 423 { "Invalid", SMB_SDT_OPS(invalid), 0xC9, 0, 0 }, /* 0xC9 201 */ 424 { "Invalid", SMB_SDT_OPS(invalid), 0xCA, 0, 0 }, /* 0xCA 202 */ 425 { "Invalid", SMB_SDT_OPS(invalid), 0xCB, 0, 0 }, /* 0xCB 203 */ 426 { "Invalid", SMB_SDT_OPS(invalid), 0xCC, 0, 0 }, /* 0xCC 204 */ 427 { "Invalid", SMB_SDT_OPS(invalid), 0xCD, 0, 0 }, /* 0xCD 205 */ 428 { "Invalid", SMB_SDT_OPS(invalid), 0xCE, 0, 0 }, /* 0xCE 206 */ 429 { "Invalid", SMB_SDT_OPS(invalid), 0xCF, 0, 0 }, /* 0xCF 207 */ 430 { "Invalid", SMB_SDT_OPS(invalid), 0xD0, 0, 0 }, /* 0xD0 208 */ 431 { "Invalid", SMB_SDT_OPS(invalid), 0xD1, 0, 0 }, /* 0xD1 209 */ 432 { "Invalid", SMB_SDT_OPS(invalid), 0xD2, 0, 0 }, /* 0xD2 210 */ 433 { "Invalid", SMB_SDT_OPS(invalid), 0xD3, 0, 0 }, /* 0xD3 211 */ 434 { "Invalid", SMB_SDT_OPS(invalid), 0xD4, 0, 0 }, /* 0xD4 212 */ 435 { "Invalid", SMB_SDT_OPS(invalid), 0xD5, 0, 0 }, /* 0xD5 213 */ 436 { "Invalid", SMB_SDT_OPS(invalid), 0xD6, 0, 0 }, /* 0xD6 214 */ 437 { "Invalid", SMB_SDT_OPS(invalid), 0xD7, 0, 0 }, /* 0xD7 215 */ 438 { "Invalid", SMB_SDT_OPS(invalid), 0xD8, 0, 0 }, /* 0xD8 216 */ 439 { "Invalid", SMB_SDT_OPS(invalid), 0xD9, 0, 0 }, /* 0xD9 217 */ 440 { "Invalid", SMB_SDT_OPS(invalid), 0xDA, 0, 0 }, /* 0xDA 218 */ 441 { "Invalid", SMB_SDT_OPS(invalid), 0xDB, 0, 0 }, /* 0xDB 219 */ 442 { "Invalid", SMB_SDT_OPS(invalid), 0xDC, 0, 0 }, /* 0xDC 220 */ 443 { "Invalid", SMB_SDT_OPS(invalid), 0xDD, 0, 0 }, /* 0xDD 221 */ 444 { "Invalid", SMB_SDT_OPS(invalid), 0xDE, 0, 0 }, /* 0xDE 222 */ 445 { "Invalid", SMB_SDT_OPS(invalid), 0xDF, 0, 0 }, /* 0xDF 223 */ 446 { "Invalid", SMB_SDT_OPS(invalid), 0xE0, 0, 0 }, /* 0xE0 224 */ 447 { "Invalid", SMB_SDT_OPS(invalid), 0xE1, 0, 0 }, /* 0xE1 225 */ 448 { "Invalid", SMB_SDT_OPS(invalid), 0xE2, 0, 0 }, /* 0xE2 226 */ 449 { "Invalid", SMB_SDT_OPS(invalid), 0xE3, 0, 0 }, /* 0xE3 227 */ 450 { "Invalid", SMB_SDT_OPS(invalid), 0xE4, 0, 0 }, /* 0xE4 228 */ 451 { "Invalid", SMB_SDT_OPS(invalid), 0xE5, 0, 0 }, /* 0xE5 229 */ 452 { "Invalid", SMB_SDT_OPS(invalid), 0xE6, 0, 0 }, /* 0xE6 230 */ 453 { "Invalid", SMB_SDT_OPS(invalid), 0xE7, 0, 0 }, /* 0xE7 231 */ 454 { "Invalid", SMB_SDT_OPS(invalid), 0xE8, 0, 0 }, /* 0xE8 232 */ 455 { "Invalid", SMB_SDT_OPS(invalid), 0xE9, 0, 0 }, /* 0xE9 233 */ 456 { "Invalid", SMB_SDT_OPS(invalid), 0xEA, 0, 0 }, /* 0xEA 234 */ 457 { "Invalid", SMB_SDT_OPS(invalid), 0xEB, 0, 0 }, /* 0xEB 235 */ 458 { "Invalid", SMB_SDT_OPS(invalid), 0xEC, 0, 0 }, /* 0xEC 236 */ 459 { "Invalid", SMB_SDT_OPS(invalid), 0xED, 0, 0 }, /* 0xED 237 */ 460 { "Invalid", SMB_SDT_OPS(invalid), 0xEE, 0, 0 }, /* 0xEE 238 */ 461 { "Invalid", SMB_SDT_OPS(invalid), 0xEF, 0, 0 }, /* 0xEF 239 */ 462 { "Invalid", SMB_SDT_OPS(invalid), 0xF0, 0, 0 }, /* 0xF0 240 */ 463 { "Invalid", SMB_SDT_OPS(invalid), 0xF1, 0, 0 }, /* 0xF1 241 */ 464 { "Invalid", SMB_SDT_OPS(invalid), 0xF2, 0, 0 }, /* 0xF2 242 */ 465 { "Invalid", SMB_SDT_OPS(invalid), 0xF3, 0, 0 }, /* 0xF3 243 */ 466 { "Invalid", SMB_SDT_OPS(invalid), 0xF4, 0, 0 }, /* 0xF4 244 */ 467 { "Invalid", SMB_SDT_OPS(invalid), 0xF5, 0, 0 }, /* 0xF5 245 */ 468 { "Invalid", SMB_SDT_OPS(invalid), 0xF6, 0, 0 }, /* 0xF6 246 */ 469 { "Invalid", SMB_SDT_OPS(invalid), 0xF7, 0, 0 }, /* 0xF7 247 */ 470 { "Invalid", SMB_SDT_OPS(invalid), 0xF8, 0, 0 }, /* 0xF8 248 */ 471 { "Invalid", SMB_SDT_OPS(invalid), 0xF9, 0, 0 }, /* 0xF9 249 */ 472 { "Invalid", SMB_SDT_OPS(invalid), 0xFA, 0, 0 }, /* 0xFA 250 */ 473 { "Invalid", SMB_SDT_OPS(invalid), 0xFB, 0, 0 }, /* 0xFB 251 */ 474 { "Invalid", SMB_SDT_OPS(invalid), 0xFC, 0, 0 }, /* 0xFC 252 */ 475 { "Invalid", SMB_SDT_OPS(invalid), 0xFD, 0, 0 }, /* 0xFD 253 */ 476 { "Invalid", SMB_SDT_OPS(invalid), 0xFE, 0, 0 }, /* 0xFE 254 */ 477 { "Invalid", SMB_SDT_OPS(invalid), 0xFF, 0, 0 } /* 0xFF 255 */ 478 }; 479 480 /* 481 * smbsr_cleanup 482 * 483 * If any user/tree/file is used by given request then 484 * the reference count for that resource has been incremented. 485 * This function decrements the reference count and close 486 * the resource if it's needed. 487 */ 488 489 void 490 smbsr_cleanup(smb_request_t *sr) 491 { 492 ASSERT((sr->sr_state != SMB_REQ_STATE_CLEANED_UP) && 493 (sr->sr_state != SMB_REQ_STATE_COMPLETED)); 494 495 if (sr->r_xa) { 496 if (sr->r_xa->xa_flags & SMB_XA_FLAG_COMPLETE) 497 smb_xa_close(sr->r_xa); 498 smb_xa_rele(sr->session, sr->r_xa); 499 sr->r_xa = NULL; 500 } 501 502 /* 503 * Mark this request so we know that we've already cleaned it up. 504 * A request should only get cleaned up once so multiple calls to 505 * smbsr_cleanup for the same request indicate a bug. 506 */ 507 mutex_enter(&sr->sr_mutex); 508 if (sr->sr_state != SMB_REQ_STATE_CANCELLED) 509 sr->sr_state = SMB_REQ_STATE_CLEANED_UP; 510 mutex_exit(&sr->sr_mutex); 511 } 512 513 int smb_cancel_in_reader = 1; 514 515 /* 516 * This is the SMB1 handler for new smb requests, called from 517 * smb_session_reader after SMB negotiate is done. For most SMB 518 * requests, we just enqueue them for the smb_session_worker to 519 * execute via the task queue, so they can block for resources 520 * without stopping the reader thread. A few protocol messages 521 * are special cases and are handled directly here in the reader 522 * thread so they don't wait for taskq scheduling. Later, a few 523 * MORE things could be handled here, such as REPLY messages 524 * (oplock break reply) and things like "NT_cancel". 525 * 526 * This function must either enqueue the new request for 527 * execution via the task queue, or execute it directly 528 * and then free it. If this returns non-zero, the caller 529 * will drop the session. 530 */ 531 int 532 smb1sr_newrq(smb_request_t *sr) 533 { 534 uint16_t pid_hi, pid_lo; 535 int rc, save_offset; 536 taskqid_t tqid; 537 538 /* 539 * Decode the SMB header now (peek) so that 540 * SMB_COM_NT_CANCEL can find this SR. 541 */ 542 save_offset = sr->command.chain_offset; 543 rc = smb_mbc_decodef(&sr->command, SMB_HEADER_ED_FMT, 544 &sr->smb_com, 545 &sr->smb_rcls, 546 &sr->smb_reh, 547 &sr->smb_err, 548 &sr->smb_flg, 549 &sr->smb_flg2, 550 &pid_hi, 551 sr->smb_sig, 552 &sr->smb_tid, 553 &pid_lo, 554 &sr->smb_uid, 555 &sr->smb_mid); 556 sr->command.chain_offset = save_offset; 557 if (rc != 0) { 558 /* Failed decoding the header. Drop 'em. */ 559 smb_request_free(sr); 560 return (EPROTO); 561 } 562 sr->smb_pid = (pid_hi << 16) | pid_lo; 563 564 if (sr->smb_com == SMB_COM_NT_CANCEL) { 565 if (sr->session->signing.flags & SMB_SIGNING_ENABLED) { 566 sr->session->signing.seqnum++; 567 sr->sr_seqnum = sr->session->signing.seqnum + 1; 568 sr->reply_seqnum = 0; 569 } 570 571 /* 572 * Normally execute cancel requests immediately, 573 * (here in the reader thread) so they won't wait 574 * for other commands already in the task queue. 575 * Disable this via smb_cancel_in_reader=0 for 576 * testing or diagnostic efforts, in which case 577 * cancel runs via taskq_dispatch. 578 */ 579 if (smb_cancel_in_reader != 0) { 580 rc = smb1sr_newrq_cancel(sr); 581 smb_request_free(sr); 582 return (rc); 583 } 584 } else { 585 /* not NT cancel */ 586 if (sr->session->signing.flags & SMB_SIGNING_ENABLED) { 587 sr->session->signing.seqnum += 2; 588 sr->sr_seqnum = sr->session->signing.seqnum; 589 sr->reply_seqnum = sr->sr_seqnum + 1; 590 } 591 } 592 593 /* 594 * Submit the request to the task queue, which calls 595 * smb1_tq_work when the workload permits. 596 */ 597 sr->sr_time_submitted = gethrtime(); 598 sr->sr_state = SMB_REQ_STATE_SUBMITTED; 599 smb_srqueue_waitq_enter(sr->session->s_srqueue); 600 tqid = taskq_dispatch(sr->sr_server->sv_worker_pool, 601 smb1_tq_work, sr, TQ_SLEEP); 602 VERIFY(tqid != TASKQID_INVALID); 603 604 return (0); 605 } 606 607 static void 608 smb1_tq_work(void *arg) 609 { 610 smb_request_t *sr; 611 smb_srqueue_t *srq; 612 613 sr = (smb_request_t *)arg; 614 SMB_REQ_VALID(sr); 615 616 srq = sr->session->s_srqueue; 617 smb_srqueue_waitq_to_runq(srq); 618 sr->sr_worker = curthread; 619 sr->sr_time_active = gethrtime(); 620 621 /* 622 * Always dispatch to the work function, because cancelled 623 * requests need an error reply (NT_STATUS_CANCELLED). 624 */ 625 mutex_enter(&sr->sr_mutex); 626 if (sr->sr_state == SMB_REQ_STATE_SUBMITTED) 627 sr->sr_state = SMB_REQ_STATE_ACTIVE; 628 mutex_exit(&sr->sr_mutex); 629 630 smb1sr_work(sr); 631 632 smb_srqueue_runq_exit(srq); 633 } 634 635 /* 636 * smb1sr_work 637 * 638 * In most cases, this should free the request before return. 639 * Exceptions are when a dispatch function returns SDRC_SR_KEPT. 640 */ 641 void 642 smb1sr_work(struct smb_request *sr) 643 { 644 smb_sdrc_t sdrc; 645 const smb_disp_entry_t *sdd; 646 smb_disp_stats_t *sds; 647 boolean_t disconnect = B_FALSE; 648 smb_session_t *session; 649 smb_server_t *server; 650 uint32_t byte_count; 651 uint32_t max_bytes; 652 uint16_t pid_hi, pid_lo; 653 654 session = sr->session; 655 server = session->s_server; 656 657 ASSERT(sr->tid_tree == 0); 658 ASSERT(sr->uid_user == 0); 659 ASSERT(sr->fid_ofile == 0); 660 sr->smb_fid = (uint16_t)-1; 661 662 /* temporary until we identify a user */ 663 sr->user_cr = zone_kcred(); 664 sr->orig_request_hdr = sr->command.chain_offset; 665 666 /* 667 * Decode the SMB header. 668 */ 669 if (smb_mbc_decodef(&sr->command, SMB_HEADER_ED_FMT, 670 &sr->smb_com, 671 &sr->smb_rcls, 672 &sr->smb_reh, 673 &sr->smb_err, 674 &sr->smb_flg, 675 &sr->smb_flg2, 676 &pid_hi, 677 sr->smb_sig, 678 &sr->smb_tid, 679 &pid_lo, 680 &sr->smb_uid, 681 &sr->smb_mid) != 0) { 682 disconnect = B_TRUE; 683 goto drop_connection; 684 } 685 sr->smb_pid = (pid_hi << 16) | pid_lo; 686 687 /* 688 * The reply "header" is filled in now even though it will, 689 * most likely, be rewritten under reply_ready below. We 690 * could reserve the space but this is convenient in case 691 * the dialect dispatcher has to send a special reply (like 692 * TRANSACT). 693 * 694 * Ensure that the 32-bit error code flag is turned off. 695 * Clients seem to set it in transact requests and they may 696 * get confused if we return success or a 16-bit SMB code. 697 */ 698 sr->smb_rcls = 0; 699 sr->smb_reh = 0; 700 sr->smb_err = 0; 701 sr->smb_flg2 &= ~SMB_FLAGS2_NT_STATUS; 702 703 (void) smb_mbc_encodef(&sr->reply, SMB_HEADER_ED_FMT, 704 sr->smb_com, 705 sr->smb_rcls, 706 sr->smb_reh, 707 sr->smb_err, 708 sr->smb_flg, 709 sr->smb_flg2, 710 pid_hi, 711 sr->smb_sig, 712 sr->smb_tid, 713 pid_lo, 714 sr->smb_uid, 715 sr->smb_mid); 716 sr->first_smb_com = sr->smb_com; 717 718 /* Need this for early goto report_error cases. */ 719 sr->cur_reply_offset = sr->reply.chain_offset; 720 721 if ((session->signing.flags & SMB_SIGNING_CHECK) != 0) { 722 if ((sr->smb_flg2 & SMB_FLAGS2_SMB_SECURITY_SIGNATURE) == 0 || 723 smb_sign_check_request(sr) != 0) { 724 smbsr_error(sr, NT_STATUS_ACCESS_DENIED, 725 ERRDOS, ERROR_ACCESS_DENIED); 726 disconnect = B_TRUE; 727 goto report_error; 728 } 729 } 730 731 andx_more: 732 sdd = &smb_disp_table[sr->smb_com]; 733 ASSERT(sdd->sdt_function); 734 sds = &server->sv_disp_stats1[sr->smb_com]; 735 736 if (smb_mbc_decodef(&sr->command, "b", &sr->smb_wct) != 0) { 737 disconnect = B_TRUE; 738 goto report_error; 739 } 740 741 (void) MBC_SHADOW_CHAIN(&sr->smb_vwv, &sr->command, 742 sr->command.chain_offset, sr->smb_wct * 2); 743 744 if (smb_mbc_decodef(&sr->command, "#.w", sr->smb_wct*2, &sr->smb_bcc)) { 745 disconnect = B_TRUE; 746 goto report_error; 747 } 748 749 atomic_add_64(&sds->sdt_rxb, 750 (int64_t)(sr->smb_wct * 2 + sr->smb_bcc + 1)); 751 sr->sr_txb = sr->reply.chain_offset; 752 753 /* 754 * Ignore smb_bcc if CAP_LARGE_READX/CAP_LARGE_WRITEX 755 * and this is SmbReadX/SmbWriteX since this enables 756 * large reads/write and bcc is only 16-bits. 757 */ 758 max_bytes = sr->command.max_bytes - sr->command.chain_offset; 759 if (sr->smb_com == SMB_COM_WRITE_ANDX) { 760 /* Allow > BCC */ 761 byte_count = max_bytes; 762 } else if (max_bytes < (uint32_t)sr->smb_bcc) { 763 /* BCC is bogus. Will fail later. */ 764 byte_count = max_bytes; 765 } else { 766 /* ordinary case */ 767 byte_count = (uint32_t)sr->smb_bcc; 768 } 769 770 (void) MBC_SHADOW_CHAIN(&sr->smb_data, &sr->command, 771 sr->command.chain_offset, byte_count); 772 773 sr->command.chain_offset += byte_count; 774 if (sr->command.chain_offset > sr->command.max_bytes) { 775 disconnect = B_TRUE; 776 goto report_error; 777 } 778 779 /* Store pointers for later */ 780 sr->cur_reply_offset = sr->reply.chain_offset; 781 782 if (is_andx_com(sr->smb_com)) { 783 /* Peek ahead and don't disturb vwv */ 784 if (smb_mbc_peek(&sr->smb_vwv, sr->smb_vwv.chain_offset, "b.w", 785 &sr->andx_com, &sr->andx_off) < 0) { 786 disconnect = B_TRUE; 787 goto report_error; 788 } 789 } else { 790 sr->andx_com = (unsigned char)-1; 791 } 792 793 mutex_enter(&sr->sr_mutex); 794 switch (sr->sr_state) { 795 case SMB_REQ_STATE_ACTIVE: 796 break; 797 case SMB_REQ_STATE_CLEANED_UP: 798 sr->sr_state = SMB_REQ_STATE_ACTIVE; 799 break; 800 case SMB_REQ_STATE_CANCELLED: 801 /* 802 * Keep cancelled. Handlers that might block will 803 * check the state and return NT_STATUS_CANCELLED. 804 */ 805 break; 806 default: 807 ASSERT(0); 808 break; 809 } 810 mutex_exit(&sr->sr_mutex); 811 812 /* 813 * Setup UID and TID information (if required). Both functions 814 * will set the sr credentials. In domain mode, the user and 815 * tree credentials should be the same. In share mode, the 816 * tree credentials (defined in the share definition) should 817 * override the user credentials. 818 */ 819 if (!(sdd->sdt_flags & SDDF_SUPPRESS_UID) && (sr->uid_user == NULL)) { 820 sr->uid_user = smb_session_lookup_uid(session, sr->smb_uid); 821 if (sr->uid_user == NULL) { 822 smbsr_error(sr, 0, ERRSRV, ERRbaduid); 823 smbsr_cleanup(sr); 824 goto report_error; 825 } 826 827 sr->user_cr = smb_user_getcred(sr->uid_user); 828 } 829 if (!(sdd->sdt_flags & SDDF_SUPPRESS_TID) && (sr->tid_tree == NULL)) { 830 sr->tid_tree = smb_session_lookup_tree(session, sr->smb_tid); 831 if (sr->tid_tree == NULL) { 832 smbsr_error(sr, 0, ERRSRV, ERRinvnid); 833 smbsr_cleanup(sr); 834 goto report_error; 835 } 836 } 837 838 sr->sr_time_start = gethrtime(); 839 if ((sdrc = (*sdd->sdt_pre_op)(sr)) == SDRC_SUCCESS) 840 sdrc = (*sdd->sdt_function)(sr); 841 842 if (sdrc != SDRC_SR_KEPT) { 843 (*sdd->sdt_post_op)(sr); 844 smbsr_cleanup(sr); 845 } 846 847 smb_server_inc_req(server); 848 smb_latency_add_sample(&sds->sdt_lat, gethrtime() - sr->sr_time_start); 849 850 atomic_add_64(&sds->sdt_txb, 851 (int64_t)(sr->reply.chain_offset - sr->sr_txb)); 852 853 switch (sdrc) { 854 case SDRC_SUCCESS: 855 break; 856 857 case SDRC_DROP_VC: 858 disconnect = B_TRUE; 859 goto drop_connection; 860 861 case SDRC_NO_REPLY: 862 /* will free sr */ 863 goto out; 864 865 case SDRC_SR_KEPT: 866 /* Do NOT free sr */ 867 sr = NULL; 868 goto out; 869 870 case SDRC_ERROR: 871 goto report_error; 872 873 case SDRC_NOT_IMPLEMENTED: 874 default: 875 smbsr_error(sr, 0, ERRDOS, ERRbadfunc); 876 goto report_error; 877 } 878 879 /* 880 * If there's no AndX command, we're done. 881 */ 882 if (sr->andx_com == 0xff) 883 goto reply_ready; 884 885 /* 886 * Otherwise, we have to back-patch the AndXCommand and AndXOffset 887 * and continue processing. 888 */ 889 sr->andx_prev_wct = sr->cur_reply_offset; 890 (void) smb_mbc_poke(&sr->reply, sr->andx_prev_wct + 1, "b.w", 891 sr->andx_com, MBC_LENGTH(&sr->reply)); 892 893 sr->command.chain_offset = sr->orig_request_hdr + sr->andx_off; 894 sr->smb_com = sr->andx_com; 895 goto andx_more; 896 897 report_error: 898 sr->reply.chain_offset = sr->cur_reply_offset; 899 (void) smb_mbc_encodef(&sr->reply, "bw", 0, 0); 900 901 sr->smb_wct = 0; 902 sr->smb_bcc = 0; 903 904 if (sr->smb_rcls == 0 && sr->smb_reh == 0 && sr->smb_err == 0) 905 smbsr_error(sr, 0, ERRSRV, ERRerror); 906 907 reply_ready: 908 smbsr_send_reply(sr); 909 910 drop_connection: 911 if (disconnect) 912 smb_session_disconnect(session); 913 914 out: 915 if (sr != NULL) { 916 mutex_enter(&sr->sr_mutex); 917 sr->sr_state = SMB_REQ_STATE_COMPLETED; 918 mutex_exit(&sr->sr_mutex); 919 smb_request_free(sr); 920 } 921 } 922 923 int 924 smbsr_encode_empty_result(struct smb_request *sr) 925 { 926 return (smbsr_encode_result(sr, 0, 0, "bw", 0, 0)); 927 } 928 929 int 930 smbsr_encode_result(struct smb_request *sr, int wct, int bcc, 931 const char *fmt, ...) 932 { 933 va_list ap; 934 935 if (MBC_LENGTH(&sr->reply) != sr->cur_reply_offset) 936 return (-1); 937 938 va_start(ap, fmt); 939 (void) smb_mbc_vencodef(&sr->reply, fmt, ap); 940 va_end(ap); 941 942 sr->smb_wct = (unsigned char)wct; 943 sr->smb_bcc = (uint16_t)bcc; 944 945 if (smbsr_check_result(sr, wct, bcc) != 0) 946 return (-1); 947 948 return (0); 949 } 950 951 static int 952 smbsr_check_result(struct smb_request *sr, int wct, int bcc) 953 { 954 int offset = sr->cur_reply_offset; 955 int total_bytes; 956 unsigned char temp, temp1; 957 struct mbuf *m; 958 959 total_bytes = 0; 960 m = sr->reply.chain; 961 while (m != 0) { 962 total_bytes += m->m_len; 963 m = m->m_next; 964 } 965 966 if ((offset + 3) > total_bytes) 967 return (-1); 968 969 (void) smb_mbc_peek(&sr->reply, offset, "b", &temp); 970 if (temp != wct) 971 return (-1); 972 973 if ((offset + (wct * 2 + 1)) > total_bytes) 974 return (-1); 975 976 /* reply wct & vwv seem ok, consider data now */ 977 offset += wct * 2 + 1; 978 979 if ((offset + 2) > total_bytes) 980 return (-1); 981 982 (void) smb_mbc_peek(&sr->reply, offset, "bb", &temp, &temp1); 983 if (bcc == VAR_BCC) { 984 if ((temp != 0xFF) || (temp1 != 0xFF)) { 985 return (-1); 986 } else { 987 bcc = (total_bytes - offset) - 2; 988 (void) smb_mbc_poke(&sr->reply, offset, "bb", 989 bcc, bcc >> 8); 990 } 991 } else { 992 if ((temp != (bcc&0xFF)) || (temp1 != ((bcc>>8)&0xFF))) 993 return (-1); 994 } 995 996 offset += bcc + 2; 997 998 if (offset != total_bytes) 999 return (-1); 1000 1001 sr->smb_wct = (unsigned char)wct; 1002 sr->smb_bcc = (uint16_t)bcc; 1003 return (0); 1004 } 1005 1006 int 1007 smbsr_decode_vwv(struct smb_request *sr, const char *fmt, ...) 1008 { 1009 int rc; 1010 va_list ap; 1011 1012 va_start(ap, fmt); 1013 rc = smb_mbc_vdecodef(&sr->smb_vwv, fmt, ap); 1014 va_end(ap); 1015 1016 if (rc) 1017 smbsr_error(sr, 0, ERRSRV, ERRerror); 1018 return (rc); 1019 } 1020 1021 int 1022 smbsr_decode_data(struct smb_request *sr, const char *fmt, ...) 1023 { 1024 int rc; 1025 va_list ap; 1026 1027 va_start(ap, fmt); 1028 rc = smb_mbc_vdecodef(&sr->smb_data, fmt, ap); 1029 va_end(ap); 1030 1031 if (rc) 1032 smbsr_error(sr, 0, ERRSRV, ERRerror); 1033 return (rc); 1034 } 1035 1036 boolean_t 1037 smbsr_decode_data_avail(smb_request_t *sr) 1038 { 1039 return (sr->smb_data.chain_offset < sr->smb_data.max_bytes); 1040 } 1041 1042 void 1043 smbsr_send_reply(smb_request_t *sr) 1044 { 1045 uint16_t pid_hi, pid_lo; 1046 1047 if (SMB_TREE_IS_CASEINSENSITIVE(sr)) 1048 sr->smb_flg |= SMB_FLAGS_CASE_INSENSITIVE; 1049 else 1050 sr->smb_flg &= ~SMB_FLAGS_CASE_INSENSITIVE; 1051 pid_hi = sr->smb_pid >> 16; 1052 pid_lo = (uint16_t)sr->smb_pid; 1053 1054 (void) smb_mbc_poke(&sr->reply, 0, SMB_HEADER_ED_FMT, 1055 sr->first_smb_com, 1056 sr->smb_rcls, 1057 sr->smb_reh, 1058 sr->smb_err, 1059 sr->smb_flg | SMB_FLAGS_REPLY, 1060 sr->smb_flg2, 1061 pid_hi, 1062 sr->smb_sig, 1063 sr->smb_tid, 1064 pid_lo, 1065 sr->smb_uid, 1066 sr->smb_mid); 1067 1068 if (sr->session->signing.flags & SMB_SIGNING_ENABLED) 1069 smb_sign_reply(sr, NULL); 1070 1071 if (smb_session_send(sr->session, 0, &sr->reply) == 0) 1072 sr->reply.chain = 0; 1073 } 1074 1075 void 1076 smbsr_map_errno(int errnum, smb_error_t *err) 1077 { 1078 uint32_t status; 1079 uint16_t doserr; 1080 1081 status = smb_errno2status(errnum); 1082 doserr = smb_status2doserr(status); 1083 1084 err->status = status; 1085 err->errcls = ERRDOS; 1086 err->errcode = doserr; 1087 } 1088 1089 void 1090 smbsr_errno(struct smb_request *sr, int errnum) 1091 { 1092 smbsr_map_errno(errnum, &sr->smb_error); 1093 smbsr_set_error(sr, &sr->smb_error); 1094 } 1095 1096 /* 1097 * Report a request processing status (error or warning). 1098 */ 1099 void 1100 smbsr_status(smb_request_t *sr, DWORD status, uint16_t errcls, uint16_t errcode) 1101 { 1102 1103 sr->smb_error.status = status; 1104 1105 /* 1106 * This function is SMB1 specific. While adding SMB2 support, 1107 * calls to this function have been removed from common code. 1108 * In case we missed any, check for SMB2 callers here, and 1109 * vector into a wrapper function that we can watch for... 1110 * (and track down with dtrace:) 1111 */ 1112 if (sr->session->dialect >= SMB_VERS_2_BASE) { 1113 smbsr_status_smb2(sr, status); 1114 return; 1115 } 1116 1117 if (status != 0 && errcls == 0 && errcode == 0) { 1118 errcls = ERRDOS; 1119 errcode = smb_status2doserr(status); 1120 } 1121 1122 sr->smb_error.errcls = errcls; 1123 sr->smb_error.errcode = errcode; 1124 1125 smbsr_set_error(sr, &sr->smb_error); 1126 } 1127 1128 /* 1129 * Setup a request processing error. This function can be used to 1130 * report 32-bit status codes or DOS errors. Set the status code 1131 * to 0 (NT_STATUS_SUCCESS) to explicitly report a DOS error, 1132 * regardless of the client capabilities. 1133 * 1134 * If status is non-zero and the client supports 32-bit status 1135 * codes, report the status. Otherwise, report the DOS error. 1136 */ 1137 void 1138 smbsr_set_error(smb_request_t *sr, smb_error_t *err) 1139 { 1140 uint32_t status; 1141 uint32_t capabilities; 1142 1143 ASSERT(sr); 1144 ASSERT(err); 1145 1146 status = err->status; 1147 capabilities = sr->session->capabilities; 1148 1149 if ((err->errcls == 0) && (err->errcode == 0)) { 1150 capabilities |= CAP_STATUS32; 1151 if (status == 0) 1152 status = NT_STATUS_INTERNAL_ERROR; 1153 } 1154 1155 if ((capabilities & CAP_STATUS32) && (status != 0)) { 1156 sr->smb_rcls = status & 0xff; 1157 sr->smb_reh = (status >> 8) & 0xff; 1158 sr->smb_err = status >> 16; 1159 sr->smb_flg2 |= SMB_FLAGS2_NT_STATUS; 1160 } else { 1161 if ((err->errcls == 0) || (err->errcode == 0)) { 1162 sr->smb_rcls = ERRSRV; 1163 sr->smb_err = ERRerror; 1164 } else { 1165 sr->smb_rcls = (uint8_t)err->errcls; 1166 sr->smb_err = (uint16_t)err->errcode; 1167 } 1168 } 1169 } 1170 1171 smb_xa_t * 1172 smbsr_lookup_xa(smb_request_t *sr) 1173 { 1174 ASSERT(sr->r_xa == 0); 1175 1176 sr->r_xa = smb_xa_find(sr->session, sr->smb_pid, sr->smb_mid); 1177 return (sr->r_xa); 1178 } 1179 1180 void 1181 smbsr_release_file(smb_request_t *sr) 1182 { 1183 smb_ofile_t *of = sr->fid_ofile; 1184 1185 sr->fid_ofile = NULL; 1186 (void) smb_ofile_release(of); 1187 } 1188 1189 void 1190 smbsr_lookup_file(smb_request_t *sr) 1191 { 1192 if (sr->fid_ofile == NULL) 1193 sr->fid_ofile = smb_ofile_lookup_by_fid(sr, sr->smb_fid); 1194 } 1195 1196 static int 1197 is_andx_com(unsigned char com) 1198 { 1199 switch (com) { 1200 case SMB_COM_LOCKING_ANDX: 1201 case SMB_COM_OPEN_ANDX: 1202 case SMB_COM_READ_ANDX: 1203 case SMB_COM_WRITE_ANDX: 1204 case SMB_COM_SESSION_SETUP_ANDX: 1205 case SMB_COM_LOGOFF_ANDX: 1206 case SMB_COM_TREE_CONNECT_ANDX: 1207 case SMB_COM_NT_CREATE_ANDX: 1208 return (1); 1209 } 1210 return (0); 1211 } 1212 1213 /* 1214 * Invalid command stubs. 1215 * 1216 * The Read/Write Block Multiplexed (mpx) protocol is used to maximize 1217 * performance when reading/writing a large block of data: it can be 1218 * used in parallel with other client/server operations. The mpx sub- 1219 * protocol is not supported because we support only connection oriented 1220 * transports and NT supports mpx only over connectionless transports. 1221 */ 1222 smb_sdrc_t 1223 smb_pre_invalid(smb_request_t *sr) 1224 { 1225 DTRACE_SMB_START(op__Invalid, smb_request_t *, sr); 1226 return (SDRC_SUCCESS); 1227 } 1228 1229 void 1230 smb_post_invalid(smb_request_t *sr) 1231 { 1232 DTRACE_SMB_DONE(op__Invalid, smb_request_t *, sr); 1233 } 1234 1235 smb_sdrc_t 1236 smb_com_invalid(smb_request_t *sr) 1237 { 1238 smb_sdrc_t sdrc; 1239 1240 switch (sr->smb_com) { 1241 case SMB_COM_WRITE_COMPLETE: 1242 smbsr_error(sr, 0, ERRSRV, ERRerror); 1243 sdrc = SDRC_ERROR; 1244 break; 1245 1246 default: 1247 smbsr_error(sr, NT_STATUS_NOT_IMPLEMENTED, 1248 ERRDOS, ERROR_INVALID_FUNCTION); 1249 sdrc = SDRC_NOT_IMPLEMENTED; 1250 break; 1251 } 1252 1253 return (sdrc); 1254 } 1255 1256 /* 1257 * smb_dispatch_stats_init 1258 * 1259 * Initializes dispatch statistics. 1260 */ 1261 void 1262 smb_dispatch_stats_init(smb_server_t *sv) 1263 { 1264 smb_disp_stats_t *sds = sv->sv_disp_stats1; 1265 smb_kstat_req_t *ksr; 1266 int i; 1267 1268 ksr = ((smbsrv_kstats_t *)sv->sv_ksp->ks_data)->ks_reqs1; 1269 1270 for (i = 0; i < SMB_COM_NUM; i++, ksr++) { 1271 smb_latency_init(&sds[i].sdt_lat); 1272 (void) strlcpy(ksr->kr_name, smb_disp_table[i].sdt_name, 1273 sizeof (ksr->kr_name)); 1274 } 1275 } 1276 1277 /* 1278 * smb_dispatch_stats_fini 1279 * 1280 * Frees and destroyes the resources used for statistics. 1281 */ 1282 void 1283 smb_dispatch_stats_fini(smb_server_t *sv) 1284 { 1285 smb_disp_stats_t *sds = sv->sv_disp_stats1; 1286 int i; 1287 1288 for (i = 0; i < SMB_COM_NUM; i++) 1289 smb_latency_destroy(&sds[i].sdt_lat); 1290 } 1291 1292 void 1293 smb_dispatch_stats_update(smb_server_t *sv, 1294 smb_kstat_req_t *ksr, int first, int nreq) 1295 { 1296 smb_disp_stats_t *sds = sv->sv_disp_stats1; 1297 int i; 1298 int last; 1299 1300 last = first + nreq - 1; 1301 1302 if ((first < SMB_COM_NUM) && (last < SMB_COM_NUM)) { 1303 for (i = first; i <= last; i++, ksr++) { 1304 ksr->kr_rxb = sds[i].sdt_rxb; 1305 ksr->kr_txb = sds[i].sdt_txb; 1306 mutex_enter(&sds[i].sdt_lat.ly_mutex); 1307 ksr->kr_nreq = sds[i].sdt_lat.ly_a_nreq; 1308 ksr->kr_sum = sds[i].sdt_lat.ly_a_sum; 1309 ksr->kr_a_mean = sds[i].sdt_lat.ly_a_mean; 1310 ksr->kr_a_stddev = 1311 sds[i].sdt_lat.ly_a_stddev; 1312 ksr->kr_d_mean = sds[i].sdt_lat.ly_d_mean; 1313 ksr->kr_d_stddev = 1314 sds[i].sdt_lat.ly_d_stddev; 1315 sds[i].sdt_lat.ly_d_mean = 0; 1316 sds[i].sdt_lat.ly_d_nreq = 0; 1317 sds[i].sdt_lat.ly_d_stddev = 0; 1318 sds[i].sdt_lat.ly_d_sum = 0; 1319 mutex_exit(&sds[i].sdt_lat.ly_mutex); 1320 } 1321 } 1322 } 1323