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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * SMB requests. 28 * 29 * Request 30 * Header 31 * Magic 0xFF 'S' 'M' 'B' 32 * smb_com a byte, the "first" command 33 * Error a 4-byte union, ignored in a request 34 * smb_flg a one byte set of eight flags 35 * smb_flg2 a two byte set of 16 flags 36 * . twelve reserved bytes, have a role 37 * in connectionless transports (IPX, UDP?) 38 * smb_tid a 16-bit tree ID, a mount point sorta, 39 * 0xFFFF is this command does not have 40 * or require a tree context 41 * smb_pid a 16-bit process ID 42 * smb_uid a 16-bit user ID, specific to this "session" 43 * and mapped to a system (bona-fide) UID 44 * smb_mid a 16-bit multiplex ID, used to differentiate 45 * multiple simultaneous requests from the same 46 * process (pid) (ref RPC "xid") 47 * 48 * Chained (AndX) commands (0 or more) 49 * smb_wct a byte, number of 16-bit words containing 50 * command parameters, min 2 for chained command 51 * andx_com a byte, the "next" command, 0xFF for none 52 * . an unused byte 53 * andx_off a 16-bit offset, byte displacement from &Magic 54 * to the smb_wct field of the "next" command, 55 * ignore if andx_com is 0xFF, s/b 0 if no next 56 * smb_vwv[] 0 or more 16-bit (sorta) parameters for 57 * "this" command (i.e. smb_com if this is the 58 * first parameters, or the andx_com of the just 59 * previous block. 60 * smb_bcc a 16-bit count of smb_data[] bytes 61 * smb_data[] 0 or more bytes, format specific to commands 62 * padding[] Optional padding 63 * 64 * Last command 65 * smb_wct a byte, number of 16-bit words containing 66 * command parameters, min 0 for chained command 67 * smb_vwv[] 0 or more 16-bit (sorta) parameters for 68 * "this" command (i.e. smb_com if this is the 69 * first parameters, or the andx_com of the just 70 * previous block. 71 * smb_bcc a 16-bit count of smb_data[] bytes 72 * smb_data[] 0 or more bytes, format specific to commands 73 * 74 * Reply 75 * Header 76 * Magic 0xFF 'S' 'M' 'B' 77 * smb_com a byte, the "first" command, corresponds 78 * to request 79 * Error a 4-byte union, coding depends on dialect in use 80 * for "DOS" errors 81 * a byte for error class 82 * an unused byte 83 * a 16-bit word for error code 84 * for "NT" errors 85 * a 32-bit error code which 86 * is a packed class and specifier 87 * for "OS/2" errors 88 * I don't know 89 * The error information is specific to the 90 * last command in the reply chain. 91 * smb_flg a one byte set of eight flags, 0x80 bit set 92 * indicating this message is a reply 93 * smb_flg2 a two byte set of 16 flags 94 * . twelve reserved bytes, have a role 95 * in connectionless transports (IPX, UDP?) 96 * smb_tid a 16-bit tree ID, a mount point sorta, 97 * should be the same as the request 98 * smb_pid a 16-bit process ID, MUST BE the same as request 99 * smb_uid a 16-bit user ID, specific to this "session" 100 * and mapped to a system (bona-fide) UID, 101 * should be the same as request 102 * smb_mid a 16-bit multiplex ID, used to differentiate 103 * multiple simultaneous requests from the same 104 * process (pid) (ref RPC "xid"), MUST BE the 105 * same as request 106 * padding[] Optional padding 107 * 108 * Chained (AndX) commands (0 or more) 109 * smb_wct a byte, number of 16-bit words containing 110 * command parameters, min 2 for chained command, 111 * andx_com a byte, the "next" command, 0xFF for none, 112 * corresponds to request, if this is the chained 113 * command that had an error set to 0xFF 114 * . an unused byte 115 * andx_off a 16-bit offset, byte displacement from &Magic 116 * to the smb_wct field of the "next" command, 117 * ignore if andx_com is 0xFF, s/b 0 if no next 118 * smb_vwv[] 0 or more 16-bit (sorta) parameters for 119 * "this" command (i.e. smb_com if this is the 120 * first parameters, or the andx_com of the just 121 * previous block. Empty if an error. 122 * smb_bcc a 16-bit count of smb_data[] bytes 123 * smb_data[] 0 or more bytes, format specific to commands 124 * empty if an error. 125 * 126 * Last command 127 * smb_wct a byte, number of 16-bit words containing 128 * command parameters, min 0 for chained command 129 * smb_vwv[] 0 or more 16-bit (sorta) parameters for 130 * "this" command (i.e. smb_com if this is the 131 * first parameters, or the andx_com of the just 132 * previous block, empty if an error. 133 * smb_bcc a 16-bit count of smb_data[] bytes 134 * smb_data[] 0 or more bytes, format specific to commands, 135 * empty if an error. 136 */ 137 138 #include <smbsrv/smb_kproto.h> 139 #include <smbsrv/smb_kstat.h> 140 #include <sys/sdt.h> 141 142 #define SMB_ALL_DISPATCH_STAT_INCR(stat) atomic_inc_64(&stat); 143 #define SMB_COM_NUM 256 144 145 static kstat_t *smb_dispatch_ksp = NULL; 146 static kmutex_t smb_dispatch_ksmtx; 147 148 static int is_andx_com(unsigned char); 149 static int smbsr_check_result(struct smb_request *, int, int); 150 151 static smb_disp_entry_t dispatch[SMB_COM_NUM] = { 152 { SMB_SDT_OPS(create_directory), /* 0x00 000 */ 153 PC_NETWORK_PROGRAM_1_0, 0, 154 { "SmbCreateDirectory", KSTAT_DATA_UINT64 } }, 155 { SMB_SDT_OPS(delete_directory), /* 0x01 001 */ 156 PC_NETWORK_PROGRAM_1_0, 0, 157 { "SmbDeleteDirectory", KSTAT_DATA_UINT64 } }, 158 { SMB_SDT_OPS(open), /* 0x02 002 */ 159 PC_NETWORK_PROGRAM_1_0, 0, 160 { "SmbOpen", KSTAT_DATA_UINT64 } }, 161 { SMB_SDT_OPS(create), /* 0x03 003 */ 162 PC_NETWORK_PROGRAM_1_0, 0, 163 { "SmbCreate", KSTAT_DATA_UINT64 } }, 164 { SMB_SDT_OPS(close), /* 0x04 004 */ 165 PC_NETWORK_PROGRAM_1_0, 0, 166 { "SmbClose", KSTAT_DATA_UINT64 } }, 167 { SMB_SDT_OPS(flush), /* 0x05 005 */ 168 PC_NETWORK_PROGRAM_1_0, 0, 169 { "SmbFlush", KSTAT_DATA_UINT64 } }, 170 { SMB_SDT_OPS(delete), /* 0x06 006 */ 171 PC_NETWORK_PROGRAM_1_0, 0, 172 { "SmbDelete", KSTAT_DATA_UINT64 } }, 173 { SMB_SDT_OPS(rename), /* 0x07 007 */ 174 PC_NETWORK_PROGRAM_1_0, 0, 175 { "SmbRename", KSTAT_DATA_UINT64 } }, 176 { SMB_SDT_OPS(query_information), /* 0x08 008 */ 177 PC_NETWORK_PROGRAM_1_0, 0, 178 { "SmbQueryInformation", KSTAT_DATA_UINT64 } }, 179 { SMB_SDT_OPS(set_information), /* 0x09 009 */ 180 PC_NETWORK_PROGRAM_1_0, 0, 181 { "SmbSetInformation", KSTAT_DATA_UINT64 } }, 182 { SMB_SDT_OPS(read), /* 0x0A 010 */ 183 PC_NETWORK_PROGRAM_1_0, 0, 184 { "SmbRead", KSTAT_DATA_UINT64 } }, 185 { SMB_SDT_OPS(write), /* 0x0B 011 */ 186 PC_NETWORK_PROGRAM_1_0, 0, 187 { "SmbWrite", KSTAT_DATA_UINT64 } }, 188 { SMB_SDT_OPS(lock_byte_range), /* 0x0C 012 */ 189 PC_NETWORK_PROGRAM_1_0, 0, 190 { "SmbLockByteRange", KSTAT_DATA_UINT64 } }, 191 { SMB_SDT_OPS(unlock_byte_range), /* 0x0D 013 */ 192 PC_NETWORK_PROGRAM_1_0, 0, 193 { "SmbUnlockByteRange", KSTAT_DATA_UINT64 } }, 194 { SMB_SDT_OPS(create_temporary), /* 0x0E 014 */ 195 PC_NETWORK_PROGRAM_1_0, 0, 196 { "SmbCreateTemporary", KSTAT_DATA_UINT64 } }, 197 { SMB_SDT_OPS(create_new), /* 0x0F 015 */ 198 PC_NETWORK_PROGRAM_1_0, 0, 199 { "SmbCreateNew", KSTAT_DATA_UINT64 } }, 200 { SMB_SDT_OPS(check_directory), /* 0x10 016 */ 201 PC_NETWORK_PROGRAM_1_0, 0, 202 { "SmbCheckDirectory", KSTAT_DATA_UINT64 } }, 203 { SMB_SDT_OPS(process_exit), /* 0x11 017 */ 204 PC_NETWORK_PROGRAM_1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID, 205 { "SmbProcessExit", KSTAT_DATA_UINT64 } }, 206 { SMB_SDT_OPS(seek), /* 0x12 018 */ 207 PC_NETWORK_PROGRAM_1_0, 0, 208 { "SmbSeek", KSTAT_DATA_UINT64 } }, 209 { SMB_SDT_OPS(lock_and_read), /* 0x13 019 */ 210 LANMAN1_0, 0, 211 { "SmbLockAndRead", KSTAT_DATA_UINT64 } }, 212 { SMB_SDT_OPS(write_and_unlock), /* 0x14 020 */ 213 LANMAN1_0, 0, 214 { "SmbWriteAndUnlock", KSTAT_DATA_UINT64 } }, 215 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x15 021 */ 216 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x16 022 */ 217 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x17 023 */ 218 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x18 024 */ 219 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x19 025 */ 220 { SMB_SDT_OPS(read_raw), /* 0x1A 026 */ 221 LANMAN1_0, 0, 222 { "SmbReadRaw", KSTAT_DATA_UINT64 } }, 223 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x1B 027 */ 224 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x1C 028 */ 225 { SMB_SDT_OPS(write_raw), /* 0x1D 029 */ 226 LANMAN1_0, 0, 227 { "SmbWriteRaw", KSTAT_DATA_UINT64 } }, 228 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x1E 030 */ 229 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x1F 031 */ 230 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x20 032 */ 231 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x21 033 */ 232 { SMB_SDT_OPS(set_information2), /* 0x22 034 */ 233 LANMAN1_0, 0, 234 { "SmbSetInformation2", KSTAT_DATA_UINT64 } }, 235 { SMB_SDT_OPS(query_information2), /* 0x23 035 */ 236 LANMAN1_0, 0, 237 { "SmbQueryInformation2", KSTAT_DATA_UINT64 } }, 238 { SMB_SDT_OPS(locking_andx), /* 0x24 036 */ 239 LANMAN1_0, 0, 240 { "SmbLockingX", KSTAT_DATA_UINT64 } }, 241 { SMB_SDT_OPS(transaction), /* 0x25 037 */ 242 LANMAN1_0, 0, 243 { "SmbTransaction", KSTAT_DATA_UINT64 } }, 244 { SMB_SDT_OPS(transaction_secondary), /* 0x26 038 */ 245 LANMAN1_0, 0, 246 { "SmbTransactionSecondary", KSTAT_DATA_UINT64 } }, 247 { SMB_SDT_OPS(ioctl), /* 0x27 039 */ 248 LANMAN1_0, 0, 249 { "SmbIoctl", KSTAT_DATA_UINT64 } }, 250 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x28 040 */ 251 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x29 041 */ 252 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x2A 042 */ 253 { SMB_SDT_OPS(echo), /* 0x2B 043 */ 254 LANMAN1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID, 255 { "SmbEcho", KSTAT_DATA_UINT64 } }, 256 { SMB_SDT_OPS(write_and_close), /* 0x2C 044 */ 257 LANMAN1_0, 0, 258 { "SmbWriteAndClose", KSTAT_DATA_UINT64 } }, 259 { SMB_SDT_OPS(open_andx), /* 0x2D 045 */ 260 LANMAN1_0, 0, 261 { "SmbOpenX", KSTAT_DATA_UINT64 } }, 262 { SMB_SDT_OPS(read_andx), /* 0x2E 046 */ 263 LANMAN1_0, 0, 264 { "SmbReadX", KSTAT_DATA_UINT64 } }, 265 { SMB_SDT_OPS(write_andx), /* 0x2F 047 */ 266 LANMAN1_0, 0, 267 { "SmbWriteX", KSTAT_DATA_UINT64 } }, 268 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x30 048 */ 269 { SMB_SDT_OPS(close_and_tree_disconnect), /* 0x31 049 */ 270 LANMAN1_0, 0, 271 { "SmbCloseAndTreeDisconnect", KSTAT_DATA_UINT64 } }, 272 { SMB_SDT_OPS(transaction2), /* 0x32 050 */ 273 LM1_2X002, 0, 274 { "SmbTransaction2", KSTAT_DATA_UINT64 } }, 275 { SMB_SDT_OPS(transaction2_secondary), /* 0x33 051 */ 276 LM1_2X002, 0, 277 { "SmbTransaction2Secondary", KSTAT_DATA_UINT64 } }, 278 { SMB_SDT_OPS(find_close2), /* 0x34 052 */ 279 LM1_2X002, 0, 280 { "SmbFindClose2", KSTAT_DATA_UINT64 } }, 281 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x35 053 */ 282 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x36 054 */ 283 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x37 055 */ 284 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x38 056 */ 285 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x39 057 */ 286 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x3A 058 */ 287 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x3B 059 */ 288 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x3C 060 */ 289 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x3D 061 */ 290 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x3E 062 */ 291 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x3F 063 */ 292 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x40 064 */ 293 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x41 065 */ 294 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x42 066 */ 295 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x43 067 */ 296 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x44 068 */ 297 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x45 069 */ 298 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x46 070 */ 299 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x47 071 */ 300 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x48 072 */ 301 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x49 073 */ 302 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x4A 074 */ 303 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x4B 075 */ 304 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x4C 076 */ 305 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x4D 077 */ 306 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x4E 078 */ 307 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x4F 079 */ 308 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x50 080 */ 309 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x51 081 */ 310 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x52 082 */ 311 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x53 083 */ 312 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x54 084 */ 313 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x55 085 */ 314 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x56 086 */ 315 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x57 087 */ 316 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x58 088 */ 317 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x59 089 */ 318 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x5A 090 */ 319 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x5B 091 */ 320 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x5C 092 */ 321 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x5D 093 */ 322 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x5E 094 */ 323 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x5F 095 */ 324 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x60 096 */ 325 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x61 097 */ 326 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x62 098 */ 327 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x63 099 */ 328 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x64 100 */ 329 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x65 101 */ 330 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x66 102 */ 331 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x67 103 */ 332 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x68 104 */ 333 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x69 105 */ 334 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x6A 106 */ 335 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x6B 107 */ 336 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x6C 108 */ 337 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x6D 109 */ 338 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x6E 110 */ 339 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x6F 111 */ 340 { SMB_SDT_OPS(tree_connect), /* 0x70 112 */ 341 PC_NETWORK_PROGRAM_1_0, SDDF_SUPPRESS_TID, 342 { "SmbTreeConnect", KSTAT_DATA_UINT64 } }, 343 { SMB_SDT_OPS(tree_disconnect), /* 0x71 113 */ 344 PC_NETWORK_PROGRAM_1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID, 345 { "SmbTreeDisconnect", KSTAT_DATA_UINT64 } }, 346 { SMB_SDT_OPS(negotiate), /* 0x72 114 */ 347 PC_NETWORK_PROGRAM_1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID, 348 { "SmbNegotiate", KSTAT_DATA_UINT64 } }, 349 { SMB_SDT_OPS(session_setup_andx), /* 0x73 115 */ 350 LANMAN1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID, 351 { "SmbSessionSetupX", KSTAT_DATA_UINT64 } }, 352 { SMB_SDT_OPS(logoff_andx), /* 0x74 116 */ 353 LM1_2X002, SDDF_SUPPRESS_TID, 354 { "SmbLogoffX", KSTAT_DATA_UINT64 } }, 355 { SMB_SDT_OPS(tree_connect_andx), /* 0x75 117 */ 356 LANMAN1_0, SDDF_SUPPRESS_TID, 357 { "SmbTreeConnectX", KSTAT_DATA_UINT64 } }, 358 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x76 118 */ 359 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x77 119 */ 360 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x78 120 */ 361 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x79 121 */ 362 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x7A 122 */ 363 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x7B 123 */ 364 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x7C 124 */ 365 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x7D 125 */ 366 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x7E 126 */ 367 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x7F 127 */ 368 { SMB_SDT_OPS(query_information_disk), /* 0x80 128 */ 369 PC_NETWORK_PROGRAM_1_0, 0, 370 { "SmbQueryInformationDisk", KSTAT_DATA_UINT64 } }, 371 { SMB_SDT_OPS(search), /* 0x81 129 */ 372 PC_NETWORK_PROGRAM_1_0, 0, 373 { "SmbSearch", KSTAT_DATA_UINT64 } }, 374 { SMB_SDT_OPS(find), /* 0x82 130 */ 375 LANMAN1_0, 0, 376 { "SmbFind", KSTAT_DATA_UINT64 } }, 377 { SMB_SDT_OPS(find_unique), /* 0x83 131 */ 378 LANMAN1_0, 0, 379 { "SmbFindUnique", KSTAT_DATA_UINT64 } }, 380 { SMB_SDT_OPS(find_close), /* 0x84 132 */ 381 LANMAN1_0, 0, 382 { "SmbFindClose", KSTAT_DATA_UINT64 } }, 383 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x85 133 */ 384 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x86 134 */ 385 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x87 135 */ 386 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x88 136 */ 387 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x89 137 */ 388 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x8A 138 */ 389 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x8B 139 */ 390 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x8C 140 */ 391 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x8D 141 */ 392 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x8E 142 */ 393 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x8F 143 */ 394 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x90 144 */ 395 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x91 145 */ 396 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x92 146 */ 397 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x93 147 */ 398 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x94 148 */ 399 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x95 149 */ 400 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x96 150 */ 401 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x97 151 */ 402 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x98 152 */ 403 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x99 153 */ 404 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x9A 154 */ 405 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x9B 155 */ 406 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x9C 156 */ 407 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x9D 157 */ 408 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x9E 158 */ 409 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0x9F 159 */ 410 { SMB_SDT_OPS(nt_transact), /* 0xA0 160 */ 411 NT_LM_0_12, 0, 412 { "SmbNtTransact", KSTAT_DATA_UINT64 } }, 413 { SMB_SDT_OPS(nt_transact_secondary), /* 0xA1 161 */ 414 NT_LM_0_12, 0, 415 { "SmbNtTransactSecondary", KSTAT_DATA_UINT64 } }, 416 { SMB_SDT_OPS(nt_create_andx), /* 0xA2 162 */ 417 NT_LM_0_12, 0, 418 { "SmbNtCreateX", KSTAT_DATA_UINT64 } }, 419 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xA3 163 */ 420 { SMB_SDT_OPS(nt_cancel), /* 0xA4 164 */ 421 NT_LM_0_12, 0, 422 { "SmbNtCancel", KSTAT_DATA_UINT64 } }, 423 { SMB_SDT_OPS(nt_rename), /* 0xA5 165 */ 424 NT_LM_0_12, 0, 425 { "SmbNtRename", KSTAT_DATA_UINT64 } }, 426 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xA6 166 */ 427 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xA7 167 */ 428 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xA8 168 */ 429 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xA9 169 */ 430 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xAA 170 */ 431 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xAB 171 */ 432 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xAC 172 */ 433 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xAD 173 */ 434 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xAE 174 */ 435 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xAF 175 */ 436 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB0 176 */ 437 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB1 177 */ 438 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB2 178 */ 439 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB3 179 */ 440 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB4 180 */ 441 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB5 181 */ 442 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB6 182 */ 443 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB7 183 */ 444 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB8 184 */ 445 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xB9 185 */ 446 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xBA 186 */ 447 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xBB 187 */ 448 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xBC 188 */ 449 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xBD 189 */ 450 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xBE 190 */ 451 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xBF 191 */ 452 { SMB_SDT_OPS(open_print_file), /* 0xC0 192 */ 453 PC_NETWORK_PROGRAM_1_0, 0, 454 { "SmbOpenPrintFile", KSTAT_DATA_UINT64 } }, 455 { SMB_SDT_OPS(write_print_file), /* 0xC1 193 */ 456 PC_NETWORK_PROGRAM_1_0, 0, 457 { "SmbWritePrintFile", KSTAT_DATA_UINT64 } }, 458 { SMB_SDT_OPS(close_print_file), /* 0xC2 194 */ 459 PC_NETWORK_PROGRAM_1_0, 0, 460 { "SmbClosePrintFile", KSTAT_DATA_UINT64 } }, 461 { SMB_SDT_OPS(get_print_queue), /* 0xC3 195 */ 462 PC_NETWORK_PROGRAM_1_0, 0, 463 { "SmbGetPrintQueue", KSTAT_DATA_UINT64 } }, 464 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xC4 196 */ 465 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xC5 197 */ 466 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xC6 198 */ 467 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xC7 199 */ 468 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xC8 200 */ 469 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xC9 201 */ 470 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xCA 202 */ 471 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xCB 203 */ 472 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xCC 204 */ 473 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xCD 205 */ 474 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xCE 206 */ 475 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xCF 207 */ 476 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD0 208 */ 477 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD1 209 */ 478 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD2 210 */ 479 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD3 211 */ 480 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD4 212 */ 481 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD5 213 */ 482 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD6 214 */ 483 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD7 215 */ 484 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD8 216 */ 485 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xD9 217 */ 486 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xDA 218 */ 487 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xDB 219 */ 488 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xDC 220 */ 489 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xDD 221 */ 490 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xDE 222 */ 491 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xDF 223 */ 492 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE0 224 */ 493 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE1 225 */ 494 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE2 226 */ 495 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE3 227 */ 496 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE4 228 */ 497 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE5 229 */ 498 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE6 230 */ 499 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE7 231 */ 500 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE8 232 */ 501 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xE9 233 */ 502 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xEA 234 */ 503 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xEB 235 */ 504 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xEC 236 */ 505 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xED 237 */ 506 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xEE 238 */ 507 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xEF 239 */ 508 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF0 240 */ 509 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF1 241 */ 510 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF2 242 */ 511 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF3 243 */ 512 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF4 244 */ 513 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF5 245 */ 514 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF6 246 */ 515 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF7 247 */ 516 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF8 248 */ 517 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xF9 249 */ 518 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xFA 250 */ 519 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xFB 251 */ 520 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xFC 252 */ 521 { SMB_SDT_OPS(invalid), 0, 0, 0 }, /* 0xFD 253 */ 522 { SMB_SDT_OPS(invalid), LANMAN1_0, 0, /* 0xFE 254 */ 523 { "SmbInvalidCommand", KSTAT_DATA_UINT64 } }, 524 { SMB_SDT_OPS(invalid), 0, 0, 0 } /* 0xFF 255 */ 525 }; 526 527 /* 528 * smbsr_cleanup 529 * 530 * If any user/tree/file is used by given request then 531 * the reference count for that resource has been incremented. 532 * This function decrements the reference count and close 533 * the resource if it's needed. 534 */ 535 536 void 537 smbsr_cleanup(smb_request_t *sr) 538 { 539 ASSERT((sr->sr_state != SMB_REQ_STATE_CLEANED_UP) && 540 (sr->sr_state != SMB_REQ_STATE_COMPLETED)); 541 542 if (sr->r_xa) { 543 if (sr->r_xa->xa_flags & SMB_XA_FLAG_COMPLETE) 544 smb_xa_close(sr->r_xa); 545 smb_xa_rele(sr->session, sr->r_xa); 546 sr->r_xa = NULL; 547 } 548 549 /* 550 * Mark this request so we know that we've already cleaned it up. 551 * A request should only get cleaned up once so multiple calls to 552 * smbsr_cleanup for the same request indicate a bug. 553 */ 554 mutex_enter(&sr->sr_mutex); 555 if (sr->sr_state != SMB_REQ_STATE_CANCELED) 556 sr->sr_state = SMB_REQ_STATE_CLEANED_UP; 557 mutex_exit(&sr->sr_mutex); 558 } 559 /* 560 * smb_dispatch_request 561 * 562 * Returns: 563 * 564 * B_TRUE The caller must free the smb request passed in. 565 * B_FALSE The caller must not access the smb request passed in. It has 566 * been kept in an internal queue and may have already been freed. 567 */ 568 boolean_t 569 smb_dispatch_request(struct smb_request *sr) 570 { 571 smb_sdrc_t sdrc; 572 smb_disp_entry_t *sdd; 573 boolean_t disconnect = B_FALSE; 574 smb_session_t *session; 575 uint32_t capabilities; 576 uint32_t byte_count; 577 578 session = sr->session; 579 capabilities = session->capabilities; 580 581 ASSERT(sr->tid_tree == 0); 582 ASSERT(sr->uid_user == 0); 583 ASSERT(sr->fid_ofile == 0); 584 sr->smb_fid = (uint16_t)-1; 585 586 /* temporary until we identify a user */ 587 sr->user_cr = kcred; 588 sr->orig_request_hdr = sr->command.chain_offset; 589 590 /* If this connection is shutting down just kill request */ 591 if (smb_mbc_decodef(&sr->command, SMB_HEADER_ED_FMT, 592 &sr->smb_com, 593 &sr->smb_rcls, 594 &sr->smb_reh, 595 &sr->smb_err, 596 &sr->smb_flg, 597 &sr->smb_flg2, 598 &sr->smb_pid_high, 599 sr->smb_sig, 600 &sr->smb_tid, 601 &sr->smb_pid, 602 &sr->smb_uid, 603 &sr->smb_mid) != 0) { 604 disconnect = B_TRUE; 605 goto drop_connection; 606 } 607 608 /* 609 * The reply "header" is filled in now even though it will, 610 * most likely, be rewritten under reply_ready below. We 611 * could reserve the space but this is convenient in case 612 * the dialect dispatcher has to send a special reply (like 613 * TRANSACT). 614 * 615 * Ensure that the 32-bit error code flag is turned off. 616 * Clients seem to set it in transact requests and they may 617 * get confused if we return success or a 16-bit SMB code. 618 */ 619 sr->smb_rcls = 0; 620 sr->smb_reh = 0; 621 sr->smb_err = 0; 622 sr->smb_flg2 &= ~SMB_FLAGS2_NT_STATUS; 623 624 (void) smb_mbc_encodef(&sr->reply, SMB_HEADER_ED_FMT, 625 sr->smb_com, 626 sr->smb_rcls, 627 sr->smb_reh, 628 sr->smb_err, 629 sr->smb_flg, 630 sr->smb_flg2, 631 sr->smb_pid_high, 632 sr->smb_sig, 633 sr->smb_tid, 634 sr->smb_pid, 635 sr->smb_uid, 636 sr->smb_mid); 637 sr->first_smb_com = sr->smb_com; 638 639 /* 640 * Verify SMB signature if signing is enabled, dialect is NT LM 0.12, 641 * signing was negotiated and authentication has occurred. 642 */ 643 if (session->signing.flags & SMB_SIGNING_ENABLED) { 644 if (smb_sign_check_request(sr) != 0) { 645 smbsr_error(sr, NT_STATUS_ACCESS_DENIED, 646 ERRDOS, ERROR_ACCESS_DENIED); 647 disconnect = B_TRUE; 648 goto report_error; 649 } 650 } 651 652 andx_more: 653 sdd = &dispatch[sr->smb_com]; 654 ASSERT(sdd->sdt_function); 655 656 if (smb_mbc_decodef(&sr->command, "b", &sr->smb_wct) != 0) { 657 disconnect = B_TRUE; 658 goto report_error; 659 } 660 661 (void) MBC_SHADOW_CHAIN(&sr->smb_vwv, &sr->command, 662 sr->command.chain_offset, sr->smb_wct * 2); 663 664 if (smb_mbc_decodef(&sr->command, "#.w", sr->smb_wct*2, &sr->smb_bcc)) { 665 disconnect = B_TRUE; 666 goto report_error; 667 } 668 669 /* 670 * Ignore smb_bcc if CAP_LARGE_READX/CAP_LARGE_WRITEX 671 * and this is SmbReadX/SmbWriteX since this enables 672 * large reads/write and bcc is only 16-bits. 673 */ 674 if (((sr->smb_com == SMB_COM_READ_ANDX) && 675 (capabilities & CAP_LARGE_READX)) || 676 ((sr->smb_com == SMB_COM_WRITE_ANDX) && 677 (capabilities & CAP_LARGE_WRITEX))) { 678 byte_count = sr->command.max_bytes - sr->command.chain_offset; 679 } else { 680 byte_count = (uint32_t)sr->smb_bcc; 681 } 682 683 (void) MBC_SHADOW_CHAIN(&sr->smb_data, &sr->command, 684 sr->command.chain_offset, byte_count); 685 686 sr->command.chain_offset += byte_count; 687 if (sr->command.chain_offset > sr->command.max_bytes) { 688 disconnect = B_TRUE; 689 goto report_error; 690 } 691 692 /* Store pointers for later */ 693 sr->cur_reply_offset = sr->reply.chain_offset; 694 695 if (is_andx_com(sr->smb_com)) { 696 /* Peek ahead and don't disturb vwv */ 697 if (smb_mbc_peek(&sr->smb_vwv, sr->smb_vwv.chain_offset, "b.w", 698 &sr->andx_com, &sr->andx_off) < 0) { 699 disconnect = B_TRUE; 700 goto report_error; 701 } 702 } else { 703 sr->andx_com = (unsigned char)-1; 704 } 705 706 mutex_enter(&sr->sr_mutex); 707 switch (sr->sr_state) { 708 case SMB_REQ_STATE_SUBMITTED: 709 case SMB_REQ_STATE_CLEANED_UP: 710 sr->sr_state = SMB_REQ_STATE_ACTIVE; 711 break; 712 case SMB_REQ_STATE_CANCELED: 713 break; 714 default: 715 ASSERT(0); 716 break; 717 } 718 mutex_exit(&sr->sr_mutex); 719 720 /* 721 * Setup UID and TID information (if required). Both functions 722 * will set the sr credentials. In domain mode, the user and 723 * tree credentials should be the same. In share mode, the 724 * tree credentials (defined in the share definition) should 725 * override the user credentials. 726 */ 727 if (!(sdd->sdt_flags & SDDF_SUPPRESS_UID) && (sr->uid_user == NULL)) { 728 sr->uid_user = smb_user_lookup_by_uid(session, sr->smb_uid); 729 if (sr->uid_user == NULL) { 730 smbsr_error(sr, 0, ERRSRV, ERRbaduid); 731 smbsr_cleanup(sr); 732 goto report_error; 733 } 734 735 sr->user_cr = smb_user_getcred(sr->uid_user); 736 737 if (!(sdd->sdt_flags & SDDF_SUPPRESS_TID) && 738 (sr->tid_tree == NULL)) { 739 sr->tid_tree = smb_user_lookup_tree( 740 sr->uid_user, sr->smb_tid); 741 if (sr->tid_tree == NULL) { 742 smbsr_error(sr, 0, ERRSRV, ERRinvnid); 743 smbsr_cleanup(sr); 744 goto report_error; 745 } 746 } 747 } 748 749 /* 750 * If the command is not a read raw request we can set the 751 * state of the session back to SMB_SESSION_STATE_NEGOTIATED 752 * (if the current state is SMB_SESSION_STATE_OPLOCK_BREAKING). 753 * Otherwise we let the read raw handler to deal with it. 754 */ 755 smb_rwx_rwenter(&session->s_lock, RW_READER); 756 if ((session->s_state == SMB_SESSION_STATE_OPLOCK_BREAKING) && 757 (sr->smb_com != SMB_COM_READ_RAW)) { 758 (void) smb_rwx_rwupgrade(&session->s_lock); 759 if (session->s_state == SMB_SESSION_STATE_OPLOCK_BREAKING) 760 session->s_state = SMB_SESSION_STATE_NEGOTIATED; 761 } 762 smb_rwx_rwexit(&session->s_lock); 763 764 /* 765 * Increment method invocation count. This value is exposed 766 * via kstats, and it represents a count of all the dispatched 767 * requests, including the ones that have a return value, other 768 * than SDRC_SUCCESS. 769 */ 770 SMB_ALL_DISPATCH_STAT_INCR(sdd->sdt_dispatch_stats.value.ui64); 771 772 if ((sdrc = (*sdd->sdt_pre_op)(sr)) == SDRC_SUCCESS) 773 sdrc = (*sdd->sdt_function)(sr); 774 775 if (sdrc != SDRC_SR_KEPT) { 776 (*sdd->sdt_post_op)(sr); 777 smbsr_cleanup(sr); 778 } 779 780 if (sdrc != SDRC_SUCCESS) { 781 /* 782 * Handle errors from raw write. 783 */ 784 smb_rwx_rwenter(&session->s_lock, RW_WRITER); 785 if (session->s_state == SMB_SESSION_STATE_WRITE_RAW_ACTIVE) { 786 /* 787 * Set state so that the netbios session 788 * daemon will start accepting data again. 789 */ 790 session->s_write_raw_status = 0; 791 session->s_state = SMB_SESSION_STATE_NEGOTIATED; 792 } 793 smb_rwx_rwexit(&session->s_lock); 794 } 795 796 switch (sdrc) { 797 case SDRC_SUCCESS: 798 break; 799 800 case SDRC_DROP_VC: 801 disconnect = B_TRUE; 802 goto drop_connection; 803 804 case SDRC_NO_REPLY: 805 return (B_TRUE); 806 807 case SDRC_SR_KEPT: 808 return (B_FALSE); 809 810 case SDRC_ERROR: 811 goto report_error; 812 813 case SDRC_NOT_IMPLEMENTED: 814 default: 815 smbsr_error(sr, 0, ERRDOS, ERRbadfunc); 816 goto report_error; 817 } 818 819 /* 820 * If there's no AndX command, we're done. 821 */ 822 if (sr->andx_com == 0xff) 823 goto reply_ready; 824 825 /* 826 * Otherwise, we have to back-patch the AndXCommand and AndXOffset 827 * and continue processing. 828 */ 829 sr->andx_prev_wct = sr->cur_reply_offset; 830 (void) smb_mbc_poke(&sr->reply, sr->andx_prev_wct + 1, "b.w", 831 sr->andx_com, MBC_LENGTH(&sr->reply)); 832 833 sr->command.chain_offset = sr->orig_request_hdr + sr->andx_off; 834 sr->smb_com = sr->andx_com; 835 goto andx_more; 836 837 report_error: 838 sr->reply.chain_offset = sr->cur_reply_offset; 839 (void) smb_mbc_encodef(&sr->reply, "bw", 0, 0); 840 841 sr->smb_wct = 0; 842 sr->smb_bcc = 0; 843 844 if (sr->smb_rcls == 0 && sr->smb_reh == 0 && sr->smb_err == 0) 845 smbsr_error(sr, 0, ERRSRV, ERRerror); 846 847 reply_ready: 848 smbsr_send_reply(sr); 849 850 drop_connection: 851 if (disconnect) { 852 smb_rwx_rwenter(&session->s_lock, RW_WRITER); 853 switch (session->s_state) { 854 case SMB_SESSION_STATE_DISCONNECTED: 855 case SMB_SESSION_STATE_TERMINATED: 856 break; 857 default: 858 smb_soshutdown(session->sock); 859 session->s_state = SMB_SESSION_STATE_DISCONNECTED; 860 break; 861 } 862 smb_rwx_rwexit(&session->s_lock); 863 } 864 865 return (B_TRUE); 866 } 867 868 int 869 smbsr_encode_empty_result(struct smb_request *sr) 870 { 871 return (smbsr_encode_result(sr, 0, 0, "bw", 0, 0)); 872 } 873 874 int 875 smbsr_encode_result(struct smb_request *sr, int wct, int bcc, char *fmt, ...) 876 { 877 va_list ap; 878 879 if (MBC_LENGTH(&sr->reply) != sr->cur_reply_offset) 880 return (-1); 881 882 va_start(ap, fmt); 883 (void) smb_mbc_vencodef(&sr->reply, fmt, ap); 884 va_end(ap); 885 886 sr->smb_wct = (unsigned char)wct; 887 sr->smb_bcc = (uint16_t)bcc; 888 889 if (smbsr_check_result(sr, wct, bcc) != 0) 890 return (-1); 891 892 return (0); 893 } 894 895 static int 896 smbsr_check_result(struct smb_request *sr, int wct, int bcc) 897 { 898 int offset = sr->cur_reply_offset; 899 int total_bytes; 900 unsigned char temp, temp1; 901 struct mbuf *m; 902 903 total_bytes = 0; 904 m = sr->reply.chain; 905 while (m != 0) { 906 total_bytes += m->m_len; 907 m = m->m_next; 908 } 909 910 if ((offset + 3) > total_bytes) 911 return (-1); 912 913 (void) smb_mbc_peek(&sr->reply, offset, "b", &temp); 914 if (temp != wct) 915 return (-1); 916 917 if ((offset + (wct * 2 + 1)) > total_bytes) 918 return (-1); 919 920 /* reply wct & vwv seem ok, consider data now */ 921 offset += wct * 2 + 1; 922 923 if ((offset + 2) > total_bytes) 924 return (-1); 925 926 (void) smb_mbc_peek(&sr->reply, offset, "bb", &temp, &temp1); 927 if (bcc == VAR_BCC) { 928 if ((temp != 0xFF) || (temp1 != 0xFF)) { 929 return (-1); 930 } else { 931 bcc = (total_bytes - offset) - 2; 932 (void) smb_mbc_poke(&sr->reply, offset, "bb", 933 bcc, bcc >> 8); 934 } 935 } else { 936 if ((temp != (bcc&0xFF)) || (temp1 != ((bcc>>8)&0xFF))) 937 return (-1); 938 } 939 940 offset += bcc + 2; 941 942 if (offset != total_bytes) 943 return (-1); 944 945 sr->smb_wct = (unsigned char)wct; 946 sr->smb_bcc = (uint16_t)bcc; 947 return (0); 948 } 949 950 int 951 smbsr_decode_vwv(struct smb_request *sr, char *fmt, ...) 952 { 953 int rc; 954 va_list ap; 955 956 va_start(ap, fmt); 957 rc = smb_mbc_vdecodef(&sr->smb_vwv, fmt, ap); 958 va_end(ap); 959 960 if (rc) 961 smbsr_error(sr, 0, ERRSRV, ERRerror); 962 return (rc); 963 } 964 965 int 966 smbsr_decode_data(struct smb_request *sr, char *fmt, ...) 967 { 968 int rc; 969 va_list ap; 970 971 va_start(ap, fmt); 972 rc = smb_mbc_vdecodef(&sr->smb_data, fmt, ap); 973 va_end(ap); 974 975 if (rc) 976 smbsr_error(sr, 0, ERRSRV, ERRerror); 977 return (rc); 978 } 979 980 void 981 smbsr_send_reply(struct smb_request *sr) 982 { 983 if (SMB_TREE_IS_CASEINSENSITIVE(sr)) 984 sr->smb_flg |= SMB_FLAGS_CASE_INSENSITIVE; 985 else 986 sr->smb_flg &= ~SMB_FLAGS_CASE_INSENSITIVE; 987 988 (void) smb_mbc_poke(&sr->reply, 0, SMB_HEADER_ED_FMT, 989 sr->first_smb_com, 990 sr->smb_rcls, 991 sr->smb_reh, 992 sr->smb_err, 993 sr->smb_flg | SMB_FLAGS_REPLY, 994 sr->smb_flg2, 995 sr->smb_pid_high, 996 sr->smb_sig, 997 sr->smb_tid, 998 sr->smb_pid, 999 sr->smb_uid, 1000 sr->smb_mid); 1001 1002 if (sr->session->signing.flags & SMB_SIGNING_ENABLED) 1003 smb_sign_reply(sr, NULL); 1004 1005 if (smb_session_send(sr->session, 0, &sr->reply) == 0) 1006 sr->reply.chain = 0; 1007 } 1008 1009 /* 1010 * Map errno values to SMB and NT status values. 1011 * Note: ESRCH is a special case to handle a streams lookup failure. 1012 */ 1013 static struct { 1014 int errnum; 1015 int errcls; 1016 int errcode; 1017 DWORD status32; 1018 } smb_errno_map[] = { 1019 { ENOSPC, ERRDOS, ERROR_DISK_FULL, NT_STATUS_DISK_FULL }, 1020 { EDQUOT, ERRDOS, ERROR_DISK_FULL, NT_STATUS_DISK_FULL }, 1021 { EPERM, ERRSRV, ERRaccess, NT_STATUS_ACCESS_DENIED }, 1022 { ENOTDIR, ERRDOS, ERRbadpath, NT_STATUS_OBJECT_PATH_NOT_FOUND }, 1023 { EISDIR, ERRDOS, ERRbadpath, NT_STATUS_FILE_IS_A_DIRECTORY }, 1024 { ENOENT, ERRDOS, ERRbadfile, NT_STATUS_NO_SUCH_FILE }, 1025 { ENOTEMPTY, ERRDOS, ERROR_DIR_NOT_EMPTY, 1026 NT_STATUS_DIRECTORY_NOT_EMPTY }, 1027 { EILSEQ, ERRDOS, ERROR_INVALID_NAME, 1028 NT_STATUS_OBJECT_NAME_INVALID }, 1029 { EACCES, ERRDOS, ERRnoaccess, NT_STATUS_ACCESS_DENIED }, 1030 { ENOMEM, ERRDOS, ERRnomem, NT_STATUS_NO_MEMORY }, 1031 { EIO, ERRHRD, ERRgeneral, NT_STATUS_IO_DEVICE_ERROR }, 1032 { EXDEV, ERRSRV, ERRdiffdevice, NT_STATUS_NOT_SAME_DEVICE }, 1033 { EROFS, ERRHRD, ERRnowrite, NT_STATUS_ACCESS_DENIED }, 1034 { ESTALE, ERRDOS, ERRbadfid, NT_STATUS_INVALID_HANDLE }, 1035 { EBADF, ERRDOS, ERRbadfid, NT_STATUS_INVALID_HANDLE }, 1036 { EEXIST, ERRDOS, ERRfilexists, NT_STATUS_OBJECT_NAME_COLLISION }, 1037 { ENXIO, ERRSRV, ERRinvdevice, NT_STATUS_BAD_DEVICE_TYPE }, 1038 { ESRCH, ERRDOS, ERROR_FILE_NOT_FOUND, 1039 NT_STATUS_OBJECT_NAME_NOT_FOUND }, 1040 /* 1041 * It's not clear why smb_read_common effectively returns 1042 * ERRnoaccess if a range lock prevents access and smb_write_common 1043 * effectively returns ERRaccess. This table entry is used by 1044 * smb_read_common and preserves the behavior that was there before. 1045 */ 1046 { ERANGE, ERRDOS, ERRnoaccess, NT_STATUS_FILE_LOCK_CONFLICT } 1047 }; 1048 1049 void 1050 smbsr_map_errno(int errnum, smb_error_t *err) 1051 { 1052 int i; 1053 1054 for (i = 0; i < sizeof (smb_errno_map)/sizeof (smb_errno_map[0]); ++i) { 1055 if (smb_errno_map[i].errnum == errnum) { 1056 err->severity = ERROR_SEVERITY_ERROR; 1057 err->status = smb_errno_map[i].status32; 1058 err->errcls = smb_errno_map[i].errcls; 1059 err->errcode = smb_errno_map[i].errcode; 1060 return; 1061 } 1062 } 1063 1064 err->severity = ERROR_SEVERITY_ERROR; 1065 err->status = NT_STATUS_INTERNAL_ERROR; 1066 err->errcls = ERRDOS; 1067 err->errcode = ERROR_INTERNAL_ERROR; 1068 } 1069 1070 void 1071 smbsr_errno(struct smb_request *sr, int errnum) 1072 { 1073 smbsr_map_errno(errnum, &sr->smb_error); 1074 smbsr_set_error(sr, &sr->smb_error); 1075 } 1076 1077 /* 1078 * Report a request processing warning. 1079 */ 1080 void 1081 smbsr_warn(smb_request_t *sr, DWORD status, uint16_t errcls, uint16_t errcode) 1082 { 1083 sr->smb_error.severity = ERROR_SEVERITY_WARNING; 1084 sr->smb_error.status = status; 1085 sr->smb_error.errcls = errcls; 1086 sr->smb_error.errcode = errcode; 1087 1088 smbsr_set_error(sr, &sr->smb_error); 1089 } 1090 1091 /* 1092 * Report a request processing error. This function will not return. 1093 */ 1094 void 1095 smbsr_error(smb_request_t *sr, DWORD status, uint16_t errcls, uint16_t errcode) 1096 { 1097 sr->smb_error.severity = ERROR_SEVERITY_ERROR; 1098 sr->smb_error.status = status; 1099 sr->smb_error.errcls = errcls; 1100 sr->smb_error.errcode = errcode; 1101 1102 smbsr_set_error(sr, &sr->smb_error); 1103 } 1104 1105 /* 1106 * Setup a request processing error. This function can be used to 1107 * report 32-bit status codes or DOS errors. Set the status code 1108 * to 0 (NT_STATUS_SUCCESS) to explicitly report a DOS error, 1109 * regardless of the client capabilities. 1110 * 1111 * If status is non-zero and the client supports 32-bit status 1112 * codes, report the status. Otherwise, report the DOS error. 1113 */ 1114 void 1115 smbsr_set_error(smb_request_t *sr, smb_error_t *err) 1116 { 1117 uint32_t status; 1118 uint32_t severity; 1119 uint32_t capabilities; 1120 1121 ASSERT(sr); 1122 ASSERT(err); 1123 1124 status = err->status; 1125 severity = (err->severity == 0) ? ERROR_SEVERITY_ERROR : err->severity; 1126 capabilities = sr->session->capabilities; 1127 1128 if ((err->errcls == 0) && (err->errcode == 0)) { 1129 capabilities |= CAP_STATUS32; 1130 if (status == 0) 1131 status = NT_STATUS_INTERNAL_ERROR; 1132 } 1133 1134 if ((capabilities & CAP_STATUS32) && (status != 0)) { 1135 status |= severity; 1136 sr->smb_rcls = status & 0xff; 1137 sr->smb_reh = (status >> 8) & 0xff; 1138 sr->smb_err = status >> 16; 1139 sr->smb_flg2 |= SMB_FLAGS2_NT_STATUS; 1140 } else { 1141 if ((err->errcls == 0) || (err->errcode == 0)) { 1142 sr->smb_rcls = ERRSRV; 1143 sr->smb_err = ERRerror; 1144 } else { 1145 sr->smb_rcls = (uint8_t)err->errcls; 1146 sr->smb_err = (uint16_t)err->errcode; 1147 } 1148 } 1149 } 1150 1151 smb_xa_t * 1152 smbsr_lookup_xa(smb_request_t *sr) 1153 { 1154 ASSERT(sr->r_xa == 0); 1155 1156 sr->r_xa = smb_xa_find(sr->session, sr->smb_pid, sr->smb_mid); 1157 return (sr->r_xa); 1158 } 1159 1160 void 1161 smbsr_release_file(smb_request_t *sr) 1162 { 1163 smb_ofile_t *of = sr->fid_ofile; 1164 1165 sr->fid_ofile = NULL; 1166 (void) smb_ofile_release(of); 1167 } 1168 1169 void 1170 smbsr_lookup_file(smb_request_t *sr) 1171 { 1172 if (sr->fid_ofile == NULL) 1173 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, 1174 sr->smb_fid); 1175 } 1176 1177 static int 1178 is_andx_com(unsigned char com) 1179 { 1180 switch (com) { 1181 case SMB_COM_LOCKING_ANDX: 1182 case SMB_COM_OPEN_ANDX: 1183 case SMB_COM_READ_ANDX: 1184 case SMB_COM_WRITE_ANDX: 1185 case SMB_COM_SESSION_SETUP_ANDX: 1186 case SMB_COM_LOGOFF_ANDX: 1187 case SMB_COM_TREE_CONNECT_ANDX: 1188 case SMB_COM_NT_CREATE_ANDX: 1189 return (1); 1190 } 1191 return (0); 1192 } 1193 1194 /* 1195 * Invalid command stubs. 1196 * 1197 * SmbWriteComplete is sent to acknowledge completion of raw write requests. 1198 * We never send raw write commands to other servers so, if we receive 1199 * SmbWriteComplete, we treat it as an error. 1200 * 1201 * The Read/Write Block Multiplexed (mpx) protocol is used to maximize 1202 * performance when reading/writing a large block of data: it can be 1203 * used in parallel with other client/server operations. The mpx sub- 1204 * protocol is not supported because we support only connection oriented 1205 * transports and NT supports mpx only over connectionless transports. 1206 */ 1207 smb_sdrc_t 1208 smb_pre_invalid(smb_request_t *sr) 1209 { 1210 DTRACE_SMB_1(op__Invalid__start, smb_request_t *, sr); 1211 return (SDRC_SUCCESS); 1212 } 1213 1214 void 1215 smb_post_invalid(smb_request_t *sr) 1216 { 1217 DTRACE_SMB_1(op__Invalid__done, smb_request_t *, sr); 1218 } 1219 1220 smb_sdrc_t 1221 smb_com_invalid(smb_request_t *sr) 1222 { 1223 smb_sdrc_t sdrc; 1224 1225 switch (sr->smb_com) { 1226 case SMB_COM_WRITE_COMPLETE: 1227 smbsr_error(sr, 0, ERRSRV, ERRerror); 1228 sdrc = SDRC_ERROR; 1229 break; 1230 1231 default: 1232 smbsr_error(sr, NT_STATUS_NOT_IMPLEMENTED, 1233 ERRDOS, ERROR_INVALID_FUNCTION); 1234 sdrc = SDRC_NOT_IMPLEMENTED; 1235 break; 1236 } 1237 1238 return (sdrc); 1239 } 1240 1241 /* 1242 * smb_dispatch_kstat_update 1243 * 1244 * This callback function updates the smb_dispatch_kstat_data when kstat 1245 * command is invoked. 1246 */ 1247 static int 1248 smb_dispatch_kstat_update(kstat_t *ksp, int rw) 1249 { 1250 smb_disp_entry_t *sdd; 1251 kstat_named_t *ks_named; 1252 int i; 1253 1254 if (rw == KSTAT_WRITE) 1255 return (EACCES); 1256 1257 ASSERT(MUTEX_HELD(ksp->ks_lock)); 1258 1259 ks_named = ksp->ks_data; 1260 for (i = 0; i < SMB_COM_NUM; i++) { 1261 sdd = &dispatch[i]; 1262 1263 if (sdd->sdt_function != smb_com_invalid) { 1264 bcopy(&sdd->sdt_dispatch_stats, ks_named, 1265 sizeof (kstat_named_t)); 1266 ++ks_named; 1267 } 1268 } 1269 1270 return (0); 1271 } 1272 1273 /* 1274 * smb_dispatch_kstat_init 1275 * 1276 * Initialize dispatch kstats. 1277 */ 1278 void 1279 smb_dispatch_kstat_init(void) 1280 { 1281 int ks_ndata; 1282 int i; 1283 1284 for (i = 0, ks_ndata = 0; i < SMB_COM_NUM; i++) { 1285 if (dispatch[i].sdt_function != smb_com_invalid) 1286 ks_ndata++; 1287 } 1288 1289 smb_dispatch_ksp = kstat_create(SMBSRV_KSTAT_MODULE, 0, 1290 SMBSRV_KSTAT_NAME_CMDS, SMBSRV_KSTAT_CLASS, 1291 KSTAT_TYPE_NAMED, ks_ndata, 0); 1292 1293 if (smb_dispatch_ksp) { 1294 mutex_init(&smb_dispatch_ksmtx, NULL, MUTEX_DEFAULT, NULL); 1295 smb_dispatch_ksp->ks_update = smb_dispatch_kstat_update; 1296 smb_dispatch_ksp->ks_lock = &smb_dispatch_ksmtx; 1297 kstat_install(smb_dispatch_ksp); 1298 } 1299 } 1300 1301 /* 1302 * smb_dispatch_kstat_fini 1303 * 1304 * Remove dispatch kstats. 1305 */ 1306 void 1307 smb_dispatch_kstat_fini(void) 1308 { 1309 if (smb_dispatch_ksp != NULL) { 1310 kstat_delete(smb_dispatch_ksp); 1311 mutex_destroy(&smb_dispatch_ksmtx); 1312 smb_dispatch_ksp = NULL; 1313 } 1314 } 1315
Indexes created Sat Nov 28 14:09:03 UTC 2009
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