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 2014 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
147 static const smb_disp_entry_t const
148 smb_disp_table[SMB_COM_NUM] = {
149 { "SmbCreateDirectory", SMB_SDT_OPS(create_directory), /* 0x00 000 */
150 0x00, PC_NETWORK_PROGRAM_1_0 },
151 { "SmbDeleteDirectory", SMB_SDT_OPS(delete_directory), /* 0x01 001 */
152 0x01, PC_NETWORK_PROGRAM_1_0 },
153 { "SmbOpen", SMB_SDT_OPS(open), /* 0x02 002 */
154 0x02, PC_NETWORK_PROGRAM_1_0 },
155 { "SmbCreate", SMB_SDT_OPS(create), /* 0x03 003 */
156 0x03, PC_NETWORK_PROGRAM_1_0 },
157 { "SmbClose", SMB_SDT_OPS(close), /* 0x04 004 */
158 0x04, PC_NETWORK_PROGRAM_1_0 },
159 { "SmbFlush", SMB_SDT_OPS(flush), /* 0x05 005 */
160 0x05, PC_NETWORK_PROGRAM_1_0 },
161 { "SmbDelete", SMB_SDT_OPS(delete), /* 0x06 006 */
162 0x06, PC_NETWORK_PROGRAM_1_0 },
163 { "SmbRename", SMB_SDT_OPS(rename), /* 0x07 007 */
164 0x07, PC_NETWORK_PROGRAM_1_0 },
165 { "SmbQueryInformation", SMB_SDT_OPS(query_information), /* 0x08 008 */
166 0x08, PC_NETWORK_PROGRAM_1_0 },
167 { "SmbSetInformation", SMB_SDT_OPS(set_information), /* 0x09 009 */
168 0x09, PC_NETWORK_PROGRAM_1_0 },
169 { "SmbRead", SMB_SDT_OPS(read), /* 0x0A 010 */
170 0x0A, PC_NETWORK_PROGRAM_1_0 },
171 { "SmbWrite", SMB_SDT_OPS(write), /* 0x0B 011 */
172 0x0B, PC_NETWORK_PROGRAM_1_0 },
173 { "SmbLockByteRange", SMB_SDT_OPS(lock_byte_range), /* 0x0C 012 */
174 0x0C, PC_NETWORK_PROGRAM_1_0 },
175 { "SmbUnlockByteRange", SMB_SDT_OPS(unlock_byte_range), /* 0x0D 013 */
176 0x0D, PC_NETWORK_PROGRAM_1_0 },
177 { "SmbCreateTemporary", SMB_SDT_OPS(create_temporary), /* 0x0E 014 */
178 0x0E, PC_NETWORK_PROGRAM_1_0 },
179 { "SmbCreateNew", SMB_SDT_OPS(create_new), /* 0x0F 015 */
180 0x0F, PC_NETWORK_PROGRAM_1_0 },
181 { "SmbCheckDirectory", SMB_SDT_OPS(check_directory), /* 0x10 016 */
182 0x10, PC_NETWORK_PROGRAM_1_0 },
183 { "SmbProcessExit", SMB_SDT_OPS(process_exit), /* 0x11 017 */
184 0x11, PC_NETWORK_PROGRAM_1_0,
185 SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID },
186 { "SmbSeek", SMB_SDT_OPS(seek), /* 0x12 018 */
187 0x12, PC_NETWORK_PROGRAM_1_0 },
188 { "SmbLockAndRead", SMB_SDT_OPS(lock_and_read), /* 0x13 019 */
189 0x13, LANMAN1_0 },
190 { "SmbWriteAndUnlock", SMB_SDT_OPS(write_and_unlock), /* 0x14 020 */
191 0x14, LANMAN1_0 },
192 { "Invalid", SMB_SDT_OPS(invalid), 0x15, 0 }, /* 0x15 021 */
193 { "Invalid", SMB_SDT_OPS(invalid), 0x16, 0 }, /* 0x16 022 */
194 { "Invalid", SMB_SDT_OPS(invalid), 0x17, 0 }, /* 0x17 023 */
195 { "Invalid", SMB_SDT_OPS(invalid), 0x18, 0 }, /* 0x18 024 */
196 { "Invalid", SMB_SDT_OPS(invalid), 0x19, 0 }, /* 0x19 025 */
197 { "SmbReadRaw", SMB_SDT_OPS(invalid), 0x1A, 0 }, /* 0x1A 026 */
198 { "Invalid", SMB_SDT_OPS(invalid), 0x1B, 0 }, /* 0x1B 027 */
199 { "Invalid", SMB_SDT_OPS(invalid), 0x1C, 0 }, /* 0x1C 028 */
200 { "SmbWriteRaw", SMB_SDT_OPS(invalid), 0x1D, 0 }, /* 0x1D 029 */
201 { "Invalid", SMB_SDT_OPS(invalid), 0x1E, 0 }, /* 0x1E 030 */
202 { "Invalid", SMB_SDT_OPS(invalid), 0x1F, 0 }, /* 0x1F 031 */
203 { "Invalid", SMB_SDT_OPS(invalid), 0x20, 0 }, /* 0x20 032 */
204 { "Invalid", SMB_SDT_OPS(invalid), 0x21, 0 }, /* 0x21 033 */
205 { "SmbSetInformation2", SMB_SDT_OPS(set_information2), /* 0x22 034 */
206 0x22, LANMAN1_0 },
207 { "SmbQueryInformation2",
208 SMB_SDT_OPS(query_information2), /* 0x23 035 */
209 0x23, LANMAN1_0 },
210 { "SmbLockingX", SMB_SDT_OPS(locking_andx), /* 0x24 036 */
211 0x24, LANMAN1_0 },
212 { "SmbTransaction", SMB_SDT_OPS(transaction), /* 0x25 037 */
213 0x25, LANMAN1_0 },
214 { "SmbTransactionSecondary",
215 SMB_SDT_OPS(transaction_secondary), /* 0x26 038 */
216 0x26, LANMAN1_0 },
217 { "SmbIoctl", SMB_SDT_OPS(ioctl), /* 0x27 039 */
218 0x27, LANMAN1_0 },
219 { "Invalid", SMB_SDT_OPS(invalid), 0x28, 0 }, /* 0x28 040 */
220 { "Invalid", SMB_SDT_OPS(invalid), 0x29, 0 }, /* 0x29 041 */
221 { "Invalid", SMB_SDT_OPS(invalid), 0x2A, 0 }, /* 0x2A 042 */
222 { "SmbEcho", SMB_SDT_OPS(echo), /* 0x2B 043 */
223 0x2B, LANMAN1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID },
224 { "SmbWriteAndClose", SMB_SDT_OPS(write_and_close), /* 0x2C 044 */
225 0x2C, LANMAN1_0 },
226 { "SmbOpenX", SMB_SDT_OPS(open_andx), /* 0x2D 045 */
227 0x2D, LANMAN1_0 },
228 { "SmbReadX", SMB_SDT_OPS(read_andx), /* 0x2E 046 */
229 0x2E, LANMAN1_0 },
230 { "SmbWriteX", SMB_SDT_OPS(write_andx), /* 0x2F 047 */
231 0x2F, LANMAN1_0 },
232 { "Invalid", SMB_SDT_OPS(invalid), 0x30, 0 }, /* 0x30 048 */
233 { "SmbCloseAndTreeDisconnect",
234 SMB_SDT_OPS(close_and_tree_disconnect), /* 0x31 049 */
235 0x31, LANMAN1_0 },
236 { "SmbTransaction2", SMB_SDT_OPS(transaction2), /* 0x32 050 */
237 0x32, LM1_2X002 },
238 { "SmbTransaction2Secondary",
239 SMB_SDT_OPS(transaction2_secondary), /* 0x33 051 */
240 0x33, LM1_2X002 },
241 { "SmbFindClose2", SMB_SDT_OPS(find_close2), /* 0x34 052 */
242 0x34, LM1_2X002 },
243 { "Invalid", SMB_SDT_OPS(invalid), 0x35, 0 }, /* 0x35 053 */
244 { "Invalid", SMB_SDT_OPS(invalid), 0x36, 0 }, /* 0x36 054 */
245 { "Invalid", SMB_SDT_OPS(invalid), 0x37, 0 }, /* 0x37 055 */
246 { "Invalid", SMB_SDT_OPS(invalid), 0x38, 0 }, /* 0x38 056 */
247 { "Invalid", SMB_SDT_OPS(invalid), 0x39, 0 }, /* 0x39 057 */
248 { "Invalid", SMB_SDT_OPS(invalid), 0x3A, 0 }, /* 0x3A 058 */
249 { "Invalid", SMB_SDT_OPS(invalid), 0x3B, 0 }, /* 0x3B 059 */
250 { "Invalid", SMB_SDT_OPS(invalid), 0x3C, 0 }, /* 0x3C 060 */
251 { "Invalid", SMB_SDT_OPS(invalid), 0x3D, 0 }, /* 0x3D 061 */
252 { "Invalid", SMB_SDT_OPS(invalid), 0x3E, 0 }, /* 0x3E 062 */
253 { "Invalid", SMB_SDT_OPS(invalid), 0x3F, 0 }, /* 0x3F 063 */
254 { "Invalid", SMB_SDT_OPS(invalid), 0x40, 0 }, /* 0x40 064 */
255 { "Invalid", SMB_SDT_OPS(invalid), 0x47, 0 }, /* 0x47 065 */
256 { "Invalid", SMB_SDT_OPS(invalid), 0x48, 0 }, /* 0x48 066 */
257 { "Invalid", SMB_SDT_OPS(invalid), 0x49, 0 }, /* 0x49 067 */
258 { "Invalid", SMB_SDT_OPS(invalid), 0x44, 0 }, /* 0x44 068 */
259 { "Invalid", SMB_SDT_OPS(invalid), 0x45, 0 }, /* 0x45 069 */
260 { "Invalid", SMB_SDT_OPS(invalid), 0x46, 0 }, /* 0x46 070 */
261 { "Invalid", SMB_SDT_OPS(invalid), 0x47, 0 }, /* 0x47 071 */
262 { "Invalid", SMB_SDT_OPS(invalid), 0x48, 0 }, /* 0x48 072 */
263 { "Invalid", SMB_SDT_OPS(invalid), 0x49, 0 }, /* 0x49 073 */
264 { "Invalid", SMB_SDT_OPS(invalid), 0x4A, 0 }, /* 0x4A 074 */
265 { "Invalid", SMB_SDT_OPS(invalid), 0x4B, 0 }, /* 0x4B 075 */
266 { "Invalid", SMB_SDT_OPS(invalid), 0x4C, 0 }, /* 0x4C 076 */
267 { "Invalid", SMB_SDT_OPS(invalid), 0x4D, 0 }, /* 0x4D 077 */
268 { "Invalid", SMB_SDT_OPS(invalid), 0x4E, 0 }, /* 0x4E 078 */
269 { "Invalid", SMB_SDT_OPS(invalid), 0x4F, 0 }, /* 0x4F 079 */
270 { "Invalid", SMB_SDT_OPS(invalid), 0x50, 0 }, /* 0x50 080 */
271 { "Invalid", SMB_SDT_OPS(invalid), 0x51, 0 }, /* 0x51 081 */
272 { "Invalid", SMB_SDT_OPS(invalid), 0x52, 0 }, /* 0x52 082 */
273 { "Invalid", SMB_SDT_OPS(invalid), 0x53, 0 }, /* 0x53 083 */
274 { "Invalid", SMB_SDT_OPS(invalid), 0x54, 0 }, /* 0x54 084 */
275 { "Invalid", SMB_SDT_OPS(invalid), 0x55, 0 }, /* 0x55 085 */
276 { "Invalid", SMB_SDT_OPS(invalid), 0x56, 0 }, /* 0x56 086 */
277 { "Invalid", SMB_SDT_OPS(invalid), 0x57, 0 }, /* 0x57 087 */
278 { "Invalid", SMB_SDT_OPS(invalid), 0x58, 0 }, /* 0x58 088 */
279 { "Invalid", SMB_SDT_OPS(invalid), 0x59, 0 }, /* 0x59 089 */
280 { "Invalid", SMB_SDT_OPS(invalid), 0x5A, 0 }, /* 0x5A 090 */
281 { "Invalid", SMB_SDT_OPS(invalid), 0x5B, 0 }, /* 0x5B 091 */
282 { "Invalid", SMB_SDT_OPS(invalid), 0x5C, 0 }, /* 0x5C 092 */
283 { "Invalid", SMB_SDT_OPS(invalid), 0x5D, 0 }, /* 0x5D 093 */
284 { "Invalid", SMB_SDT_OPS(invalid), 0x5E, 0 }, /* 0x5E 094 */
285 { "Invalid", SMB_SDT_OPS(invalid), 0x5F, 0 }, /* 0x5F 095 */
286 { "Invalid", SMB_SDT_OPS(invalid), 0x60, 0 }, /* 0x60 096 */
287 { "Invalid", SMB_SDT_OPS(invalid), 0x61, 0 }, /* 0x61 097 */
288 { "Invalid", SMB_SDT_OPS(invalid), 0x62, 0 }, /* 0x62 098 */
289 { "Invalid", SMB_SDT_OPS(invalid), 0x63, 0 }, /* 0x63 099 */
290 { "Invalid", SMB_SDT_OPS(invalid), 0x64, 0 }, /* 0x64 100 */
291 { "Invalid", SMB_SDT_OPS(invalid), 0x65, 0 }, /* 0x65 101 */
292 { "Invalid", SMB_SDT_OPS(invalid), 0x66, 0 }, /* 0x66 102 */
293 { "Invalid", SMB_SDT_OPS(invalid), 0x67, 0 }, /* 0x67 103 */
294 { "Invalid", SMB_SDT_OPS(invalid), 0x68, 0 }, /* 0x68 104 */
295 { "Invalid", SMB_SDT_OPS(invalid), 0x69, 0 }, /* 0x69 105 */
296 { "Invalid", SMB_SDT_OPS(invalid), 0x6A, 0 }, /* 0x6A 106 */
297 { "Invalid", SMB_SDT_OPS(invalid), 0x6B, 0 }, /* 0x6B 107 */
298 { "Invalid", SMB_SDT_OPS(invalid), 0x6C, 0 }, /* 0x6C 108 */
299 { "Invalid", SMB_SDT_OPS(invalid), 0x6D, 0 }, /* 0x6D 109 */
300 { "Invalid", SMB_SDT_OPS(invalid), 0x6E, 0 }, /* 0x6E 110 */
301 { "Invalid", SMB_SDT_OPS(invalid), 0x6F, 0 }, /* 0x6F 111 */
302 { "SmbTreeConnect", SMB_SDT_OPS(tree_connect), /* 0x70 112 */
303 0x70, PC_NETWORK_PROGRAM_1_0, SDDF_SUPPRESS_TID },
304 { "SmbTreeDisconnect", SMB_SDT_OPS(tree_disconnect), /* 0x71 113 */
305 0x71, PC_NETWORK_PROGRAM_1_0,
306 SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID },
307 { "SmbNegotiate", SMB_SDT_OPS(negotiate), /* 0x72 114 */
308 0x72, PC_NETWORK_PROGRAM_1_0,
309 SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID },
310 { "SmbSessionSetupX", SMB_SDT_OPS(session_setup_andx), /* 0x73 115 */
311 0x73, LANMAN1_0, SDDF_SUPPRESS_TID | SDDF_SUPPRESS_UID },
312 { "SmbLogoffX", SMB_SDT_OPS(logoff_andx), /* 0x74 116 */
313 0x74, LM1_2X002, SDDF_SUPPRESS_TID },
314 { "SmbTreeConnectX", SMB_SDT_OPS(tree_connect_andx), /* 0x75 117 */
315 0x75, LANMAN1_0, SDDF_SUPPRESS_TID },
316 { "Invalid", SMB_SDT_OPS(invalid), 0x76, 0, 0 }, /* 0x76 118 */
317 { "Invalid", SMB_SDT_OPS(invalid), 0x77, 0, 0 }, /* 0x77 119 */
318 { "Invalid", SMB_SDT_OPS(invalid), 0x78, 0, 0 }, /* 0x78 120 */
319 { "Invalid", SMB_SDT_OPS(invalid), 0x79, 0, 0 }, /* 0x79 121 */
320 { "Invalid", SMB_SDT_OPS(invalid), 0x7A, 0, 0 }, /* 0x7A 122 */
321 { "Invalid", SMB_SDT_OPS(invalid), 0x7B, 0, 0 }, /* 0x7B 123 */
322 { "Invalid", SMB_SDT_OPS(invalid), 0x7C, 0, 0 }, /* 0x7C 124 */
323 { "Invalid", SMB_SDT_OPS(invalid), 0x7D, 0, 0 }, /* 0x7D 125 */
324 { "Invalid", SMB_SDT_OPS(invalid), 0x7E, 0, 0 }, /* 0x7E 126 */
325 { "Invalid", SMB_SDT_OPS(invalid), 0x7F, 0, 0 }, /* 0x7F 127 */
326 { "SmbQueryInformationDisk",
327 SMB_SDT_OPS(query_information_disk), /* 0x80 128 */
328 0x80, PC_NETWORK_PROGRAM_1_0, 0 },
329 { "SmbSearch", SMB_SDT_OPS(search), /* 0x81 129 */
330 0x81, PC_NETWORK_PROGRAM_1_0, 0 },
331 { "SmbFind", SMB_SDT_OPS(find), /* 0x82 130 */
332 0x82, LANMAN1_0, 0 },
333 { "SmbFindUnique", SMB_SDT_OPS(find_unique), /* 0x83 131 */
334 0x83, LANMAN1_0, 0 },
335 { "SmbFindClose", SMB_SDT_OPS(find_close), /* 0x84 132 */
336 0x84, LANMAN1_0, 0 },
337 { "Invalid", SMB_SDT_OPS(invalid), 0x85, 0, 0 }, /* 0x85 133 */
338 { "Invalid", SMB_SDT_OPS(invalid), 0x86, 0, 0 }, /* 0x86 134 */
339 { "Invalid", SMB_SDT_OPS(invalid), 0x87, 0, 0 }, /* 0x87 135 */
340 { "Invalid", SMB_SDT_OPS(invalid), 0x88, 0, 0 }, /* 0x88 136 */
341 { "Invalid", SMB_SDT_OPS(invalid), 0x89, 0, 0 }, /* 0x89 137 */
342 { "Invalid", SMB_SDT_OPS(invalid), 0x8A, 0, 0 }, /* 0x8A 138 */
343 { "Invalid", SMB_SDT_OPS(invalid), 0x8B, 0, 0 }, /* 0x8B 139 */
344 { "Invalid", SMB_SDT_OPS(invalid), 0x8C, 0, 0 }, /* 0x8C 140 */
345 { "Invalid", SMB_SDT_OPS(invalid), 0x8D, 0, 0 }, /* 0x8D 141 */
346 { "Invalid", SMB_SDT_OPS(invalid), 0x8E, 0, 0 }, /* 0x8E 142 */
347 { "Invalid", SMB_SDT_OPS(invalid), 0x8F, 0, 0 }, /* 0x8F 143 */
348 { "Invalid", SMB_SDT_OPS(invalid), 0x90, 0, 0 }, /* 0x90 144 */
349 { "Invalid", SMB_SDT_OPS(invalid), 0x91, 0, 0 }, /* 0x91 145 */
350 { "Invalid", SMB_SDT_OPS(invalid), 0x92, 0, 0 }, /* 0x92 146 */
351 { "Invalid", SMB_SDT_OPS(invalid), 0x93, 0, 0 }, /* 0x93 147 */
352 { "Invalid", SMB_SDT_OPS(invalid), 0x94, 0, 0 }, /* 0x94 148 */
353 { "Invalid", SMB_SDT_OPS(invalid), 0x95, 0, 0 }, /* 0x95 149 */
354 { "Invalid", SMB_SDT_OPS(invalid), 0x96, 0, 0 }, /* 0x96 150 */
355 { "Invalid", SMB_SDT_OPS(invalid), 0x97, 0, 0 }, /* 0x97 151 */
356 { "Invalid", SMB_SDT_OPS(invalid), 0x98, 0, 0 }, /* 0x98 152 */
357 { "Invalid", SMB_SDT_OPS(invalid), 0x99, 0, 0 }, /* 0x99 153 */
358 { "Invalid", SMB_SDT_OPS(invalid), 0x9A, 0, 0 }, /* 0x9A 154 */
359 { "Invalid", SMB_SDT_OPS(invalid), 0x9B, 0, 0 }, /* 0x9B 155 */
360 { "Invalid", SMB_SDT_OPS(invalid), 0x9C, 0, 0 }, /* 0x9C 156 */
361 { "Invalid", SMB_SDT_OPS(invalid), 0x9D, 0, 0 }, /* 0x9D 157 */
362 { "Invalid", SMB_SDT_OPS(invalid), 0x9E, 0, 0 }, /* 0x9E 158 */
363 { "Invalid", SMB_SDT_OPS(invalid), 0x9F, 0, 0 }, /* 0x9F 159 */
364 { "SmbNtTransact", SMB_SDT_OPS(nt_transact), /* 0xA0 160 */
365 0xA0, NT_LM_0_12, 0 },
366 { "SmbNtTransactSecondary",
367 SMB_SDT_OPS(nt_transact_secondary), /* 0xA1 161 */
368 0xA1, NT_LM_0_12, 0 },
369 { "SmbNtCreateX", SMB_SDT_OPS(nt_create_andx), /* 0xA2 162 */
370 0xA2, NT_LM_0_12, 0 },
371 { "Invalid", SMB_SDT_OPS(invalid), 0xA3, 0, 0 }, /* 0xA3 163 */
372 { "SmbNtCancel", SMB_SDT_OPS(nt_cancel), /* 0xA4 164 */
373 0xA4, NT_LM_0_12, 0 },
374 { "SmbNtRename", SMB_SDT_OPS(nt_rename), /* 0xA5 165 */
375 0xA5, NT_LM_0_12, 0 },
376 { "Invalid", SMB_SDT_OPS(invalid), 0xA6, 0, 0 }, /* 0xA6 166 */
377 { "Invalid", SMB_SDT_OPS(invalid), 0xA7, 0, 0 }, /* 0xA7 167 */
378 { "Invalid", SMB_SDT_OPS(invalid), 0xA8, 0, 0 }, /* 0xA8 168 */
379 { "Invalid", SMB_SDT_OPS(invalid), 0xA9, 0, 0 }, /* 0xA9 169 */
380 { "Invalid", SMB_SDT_OPS(invalid), 0xAA, 0, 0 }, /* 0xAA 170 */
381 { "Invalid", SMB_SDT_OPS(invalid), 0xAB, 0, 0 }, /* 0xAB 171 */
382 { "Invalid", SMB_SDT_OPS(invalid), 0xAC, 0, 0 }, /* 0xAC 172 */
383 { "Invalid", SMB_SDT_OPS(invalid), 0xAD, 0, 0 }, /* 0xAD 173 */
384 { "Invalid", SMB_SDT_OPS(invalid), 0xAE, 0, 0 }, /* 0xAE 174 */
385 { "Invalid", SMB_SDT_OPS(invalid), 0xAF, 0, 0 }, /* 0xAF 175 */
386 { "Invalid", SMB_SDT_OPS(invalid), 0xB0, 0, 0 }, /* 0xB0 176 */
387 { "Invalid", SMB_SDT_OPS(invalid), 0xB1, 0, 0 }, /* 0xB1 177 */
388 { "Invalid", SMB_SDT_OPS(invalid), 0xB2, 0, 0 }, /* 0xB2 178 */
389 { "Invalid", SMB_SDT_OPS(invalid), 0xB3, 0, 0 }, /* 0xB3 179 */
390 { "Invalid", SMB_SDT_OPS(invalid), 0xB4, 0, 0 }, /* 0xB4 180 */
391 { "Invalid", SMB_SDT_OPS(invalid), 0xB5, 0, 0 }, /* 0xB5 181 */
392 { "Invalid", SMB_SDT_OPS(invalid), 0xB6, 0, 0 }, /* 0xB6 182 */
393 { "Invalid", SMB_SDT_OPS(invalid), 0xB7, 0, 0 }, /* 0xB7 183 */
394 { "Invalid", SMB_SDT_OPS(invalid), 0xB8, 0, 0 }, /* 0xB8 184 */
395 { "Invalid", SMB_SDT_OPS(invalid), 0xB9, 0, 0 }, /* 0xB9 185 */
396 { "Invalid", SMB_SDT_OPS(invalid), 0xBA, 0, 0 }, /* 0xBA 186 */
397 { "Invalid", SMB_SDT_OPS(invalid), 0xBB, 0, 0 }, /* 0xBB 187 */
398 { "Invalid", SMB_SDT_OPS(invalid), 0xBC, 0, 0 }, /* 0xBC 188 */
399 { "Invalid", SMB_SDT_OPS(invalid), 0xBD, 0, 0 }, /* 0xBD 189 */
400 { "Invalid", SMB_SDT_OPS(invalid), 0xBE, 0, 0 }, /* 0xBE 190 */
401 { "Invalid", SMB_SDT_OPS(invalid), 0xBF, 0, 0 }, /* 0xBF 191 */
402 { "SmbOpenPrintFile", SMB_SDT_OPS(open_print_file), /* 0xC0 192 */
403 0xC0, PC_NETWORK_PROGRAM_1_0, 0 },
404 { "SmbWritePrintFile", SMB_SDT_OPS(write_print_file), /* 0xC1 193 */
405 0xC1, PC_NETWORK_PROGRAM_1_0, 0 },
406 { "SmbClosePrintFile", SMB_SDT_OPS(close_print_file), /* 0xC2 194 */
407 0xC2, PC_NETWORK_PROGRAM_1_0, 0 },
408 { "SmbGetPrintQueue", SMB_SDT_OPS(get_print_queue), /* 0xC3 195 */
409 0xC3, PC_NETWORK_PROGRAM_1_0, 0 },
410 { "Invalid", SMB_SDT_OPS(invalid), 0xC4, 0, 0 }, /* 0xC4 196 */
411 { "Invalid", SMB_SDT_OPS(invalid), 0xC5, 0, 0 }, /* 0xC5 197 */
412 { "Invalid", SMB_SDT_OPS(invalid), 0xC6, 0, 0 }, /* 0xC6 198 */
413 { "Invalid", SMB_SDT_OPS(invalid), 0xC7, 0, 0 }, /* 0xC7 199 */
414 { "Invalid", SMB_SDT_OPS(invalid), 0xC8, 0, 0 }, /* 0xC8 200 */
415 { "Invalid", SMB_SDT_OPS(invalid), 0xC9, 0, 0 }, /* 0xC9 201 */
416 { "Invalid", SMB_SDT_OPS(invalid), 0xCA, 0, 0 }, /* 0xCA 202 */
417 { "Invalid", SMB_SDT_OPS(invalid), 0xCB, 0, 0 }, /* 0xCB 203 */
418 { "Invalid", SMB_SDT_OPS(invalid), 0xCC, 0, 0 }, /* 0xCC 204 */
419 { "Invalid", SMB_SDT_OPS(invalid), 0xCD, 0, 0 }, /* 0xCD 205 */
420 { "Invalid", SMB_SDT_OPS(invalid), 0xCE, 0, 0 }, /* 0xCE 206 */
421 { "Invalid", SMB_SDT_OPS(invalid), 0xCF, 0, 0 }, /* 0xCF 207 */
422 { "Invalid", SMB_SDT_OPS(invalid), 0xD0, 0, 0 }, /* 0xD0 208 */
423 { "Invalid", SMB_SDT_OPS(invalid), 0xD1, 0, 0 }, /* 0xD1 209 */
424 { "Invalid", SMB_SDT_OPS(invalid), 0xD2, 0, 0 }, /* 0xD2 210 */
425 { "Invalid", SMB_SDT_OPS(invalid), 0xD3, 0, 0 }, /* 0xD3 211 */
426 { "Invalid", SMB_SDT_OPS(invalid), 0xD4, 0, 0 }, /* 0xD4 212 */
427 { "Invalid", SMB_SDT_OPS(invalid), 0xD5, 0, 0 }, /* 0xD5 213 */
428 { "Invalid", SMB_SDT_OPS(invalid), 0xD6, 0, 0 }, /* 0xD6 214 */
429 { "Invalid", SMB_SDT_OPS(invalid), 0xD7, 0, 0 }, /* 0xD7 215 */
430 { "Invalid", SMB_SDT_OPS(invalid), 0xD8, 0, 0 }, /* 0xD8 216 */
431 { "Invalid", SMB_SDT_OPS(invalid), 0xD9, 0, 0 }, /* 0xD9 217 */
432 { "Invalid", SMB_SDT_OPS(invalid), 0xDA, 0, 0 }, /* 0xDA 218 */
433 { "Invalid", SMB_SDT_OPS(invalid), 0xDB, 0, 0 }, /* 0xDB 219 */
434 { "Invalid", SMB_SDT_OPS(invalid), 0xDC, 0, 0 }, /* 0xDC 220 */
435 { "Invalid", SMB_SDT_OPS(invalid), 0xDD, 0, 0 }, /* 0xDD 221 */
436 { "Invalid", SMB_SDT_OPS(invalid), 0xDE, 0, 0 }, /* 0xDE 222 */
437 { "Invalid", SMB_SDT_OPS(invalid), 0xDF, 0, 0 }, /* 0xDF 223 */
438 { "Invalid", SMB_SDT_OPS(invalid), 0xE0, 0, 0 }, /* 0xE0 224 */
439 { "Invalid", SMB_SDT_OPS(invalid), 0xE1, 0, 0 }, /* 0xE1 225 */
440 { "Invalid", SMB_SDT_OPS(invalid), 0xE2, 0, 0 }, /* 0xE2 226 */
441 { "Invalid", SMB_SDT_OPS(invalid), 0xE3, 0, 0 }, /* 0xE3 227 */
442 { "Invalid", SMB_SDT_OPS(invalid), 0xE4, 0, 0 }, /* 0xE4 228 */
443 { "Invalid", SMB_SDT_OPS(invalid), 0xE5, 0, 0 }, /* 0xE5 229 */
444 { "Invalid", SMB_SDT_OPS(invalid), 0xE6, 0, 0 }, /* 0xE6 230 */
445 { "Invalid", SMB_SDT_OPS(invalid), 0xE7, 0, 0 }, /* 0xE7 231 */
446 { "Invalid", SMB_SDT_OPS(invalid), 0xE8, 0, 0 }, /* 0xE8 232 */
447 { "Invalid", SMB_SDT_OPS(invalid), 0xE9, 0, 0 }, /* 0xE9 233 */
448 { "Invalid", SMB_SDT_OPS(invalid), 0xEA, 0, 0 }, /* 0xEA 234 */
449 { "Invalid", SMB_SDT_OPS(invalid), 0xEB, 0, 0 }, /* 0xEB 235 */
450 { "Invalid", SMB_SDT_OPS(invalid), 0xEC, 0, 0 }, /* 0xEC 236 */
451 { "Invalid", SMB_SDT_OPS(invalid), 0xED, 0, 0 }, /* 0xED 237 */
452 { "Invalid", SMB_SDT_OPS(invalid), 0xEE, 0, 0 }, /* 0xEE 238 */
453 { "Invalid", SMB_SDT_OPS(invalid), 0xEF, 0, 0 }, /* 0xEF 239 */
454 { "Invalid", SMB_SDT_OPS(invalid), 0xF0, 0, 0 }, /* 0xF0 240 */
455 { "Invalid", SMB_SDT_OPS(invalid), 0xF1, 0, 0 }, /* 0xF1 241 */
456 { "Invalid", SMB_SDT_OPS(invalid), 0xF2, 0, 0 }, /* 0xF2 242 */
457 { "Invalid", SMB_SDT_OPS(invalid), 0xF3, 0, 0 }, /* 0xF3 243 */
458 { "Invalid", SMB_SDT_OPS(invalid), 0xF4, 0, 0 }, /* 0xF4 244 */
459 { "Invalid", SMB_SDT_OPS(invalid), 0xF5, 0, 0 }, /* 0xF5 245 */
460 { "Invalid", SMB_SDT_OPS(invalid), 0xF6, 0, 0 }, /* 0xF6 246 */
461 { "Invalid", SMB_SDT_OPS(invalid), 0xF7, 0, 0 }, /* 0xF7 247 */
462 { "Invalid", SMB_SDT_OPS(invalid), 0xF8, 0, 0 }, /* 0xF8 248 */
463 { "Invalid", SMB_SDT_OPS(invalid), 0xF9, 0, 0 }, /* 0xF9 249 */
464 { "Invalid", SMB_SDT_OPS(invalid), 0xFA, 0, 0 }, /* 0xFA 250 */
465 { "Invalid", SMB_SDT_OPS(invalid), 0xFB, 0, 0 }, /* 0xFB 251 */
466 { "Invalid", SMB_SDT_OPS(invalid), 0xFC, 0, 0 }, /* 0xFC 252 */
467 { "Invalid", SMB_SDT_OPS(invalid), 0xFD, 0, 0 }, /* 0xFD 253 */
468 { "Invalid", SMB_SDT_OPS(invalid), 0xFE, 0, 0 }, /* 0xFE 254 */
469 { "Invalid", SMB_SDT_OPS(invalid), 0xFF, 0, 0 } /* 0xFF 255 */
470 };
471
472 /*
473 * smbsr_cleanup
474 *
475 * If any user/tree/file is used by given request then
476 * the reference count for that resource has been incremented.
477 * This function decrements the reference count and close
478 * the resource if it's needed.
479 */
480
481 void
smbsr_cleanup(smb_request_t * sr)482 smbsr_cleanup(smb_request_t *sr)
483 {
484 ASSERT((sr->sr_state != SMB_REQ_STATE_CLEANED_UP) &&
485 (sr->sr_state != SMB_REQ_STATE_COMPLETED));
486
487 if (sr->r_xa) {
488 if (sr->r_xa->xa_flags & SMB_XA_FLAG_COMPLETE)
489 smb_xa_close(sr->r_xa);
490 smb_xa_rele(sr->session, sr->r_xa);
491 sr->r_xa = NULL;
492 }
493
494 /*
495 * Mark this request so we know that we've already cleaned it up.
496 * A request should only get cleaned up once so multiple calls to
497 * smbsr_cleanup for the same request indicate a bug.
498 */
499 mutex_enter(&sr->sr_mutex);
500 if (sr->sr_state != SMB_REQ_STATE_CANCELED)
501 sr->sr_state = SMB_REQ_STATE_CLEANED_UP;
502 mutex_exit(&sr->sr_mutex);
503 }
504 /*
505 * smb_dispatch_request
506 *
507 * Returns:
508 *
509 * B_TRUE The caller must free the smb request passed in.
510 * B_FALSE The caller must not access the smb request passed in. It has
511 * been kept in an internal queue and may have already been freed.
512 */
513 boolean_t
smb_dispatch_request(struct smb_request * sr)514 smb_dispatch_request(struct smb_request *sr)
515 {
516 smb_sdrc_t sdrc;
517 const smb_disp_entry_t *sdd;
518 smb_disp_stats_t *sds;
519 boolean_t disconnect = B_FALSE;
520 smb_session_t *session;
521 smb_server_t *server;
522 uint32_t byte_count;
523 uint32_t max_bytes;
524
525 session = sr->session;
526 server = session->s_server;
527
528 ASSERT(sr->tid_tree == 0);
529 ASSERT(sr->uid_user == 0);
530 ASSERT(sr->fid_ofile == 0);
531 sr->smb_fid = (uint16_t)-1;
532
533 /* temporary until we identify a user */
534 sr->user_cr = zone_kcred();
535 sr->orig_request_hdr = sr->command.chain_offset;
536
537 /* If this connection is shutting down just kill request */
538 if (smb_mbc_decodef(&sr->command, SMB_HEADER_ED_FMT,
539 &sr->smb_com,
540 &sr->smb_rcls,
541 &sr->smb_reh,
542 &sr->smb_err,
543 &sr->smb_flg,
544 &sr->smb_flg2,
545 &sr->smb_pid_high,
546 sr->smb_sig,
547 &sr->smb_tid,
548 &sr->smb_pid,
549 &sr->smb_uid,
550 &sr->smb_mid) != 0) {
551 disconnect = B_TRUE;
552 goto drop_connection;
553 }
554
555 /*
556 * The reply "header" is filled in now even though it will,
557 * most likely, be rewritten under reply_ready below. We
558 * could reserve the space but this is convenient in case
559 * the dialect dispatcher has to send a special reply (like
560 * TRANSACT).
561 *
562 * Ensure that the 32-bit error code flag is turned off.
563 * Clients seem to set it in transact requests and they may
564 * get confused if we return success or a 16-bit SMB code.
565 */
566 sr->smb_rcls = 0;
567 sr->smb_reh = 0;
568 sr->smb_err = 0;
569 sr->smb_flg2 &= ~SMB_FLAGS2_NT_STATUS;
570
571 (void) smb_mbc_encodef(&sr->reply, SMB_HEADER_ED_FMT,
572 sr->smb_com,
573 sr->smb_rcls,
574 sr->smb_reh,
575 sr->smb_err,
576 sr->smb_flg,
577 sr->smb_flg2,
578 sr->smb_pid_high,
579 sr->smb_sig,
580 sr->smb_tid,
581 sr->smb_pid,
582 sr->smb_uid,
583 sr->smb_mid);
584 sr->first_smb_com = sr->smb_com;
585
586 if ((session->signing.flags & SMB_SIGNING_CHECK) != 0) {
587 if ((sr->smb_flg2 & SMB_FLAGS2_SMB_SECURITY_SIGNATURE) == 0 ||
588 smb_sign_check_request(sr) != 0) {
589 smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
590 ERRDOS, ERROR_ACCESS_DENIED);
591 disconnect = B_TRUE;
592 goto report_error;
593 }
594 }
595
596 andx_more:
597 sdd = &smb_disp_table[sr->smb_com];
598 ASSERT(sdd->sdt_function);
599 sds = &server->sv_disp_stats[sr->smb_com];
600
601 if (smb_mbc_decodef(&sr->command, "b", &sr->smb_wct) != 0) {
602 disconnect = B_TRUE;
603 goto report_error;
604 }
605
606 (void) MBC_SHADOW_CHAIN(&sr->smb_vwv, &sr->command,
607 sr->command.chain_offset, sr->smb_wct * 2);
608
609 if (smb_mbc_decodef(&sr->command, "#.w", sr->smb_wct*2, &sr->smb_bcc)) {
610 disconnect = B_TRUE;
611 goto report_error;
612 }
613
614 atomic_add_64(&sds->sdt_rxb,
615 (int64_t)(sr->smb_wct * 2 + sr->smb_bcc + 1));
616 sr->sr_txb = sr->reply.chain_offset;
617
618 /*
619 * Ignore smb_bcc if CAP_LARGE_READX/CAP_LARGE_WRITEX
620 * and this is SmbReadX/SmbWriteX since this enables
621 * large reads/write and bcc is only 16-bits.
622 */
623 max_bytes = sr->command.max_bytes - sr->command.chain_offset;
624 if (sr->smb_com == SMB_COM_WRITE_ANDX) {
625 /* Allow > BCC */
626 byte_count = max_bytes;
627 } else if (max_bytes < (uint32_t)sr->smb_bcc) {
628 /* BCC is bogus. Will fail later. */
629 byte_count = max_bytes;
630 } else {
631 /* ordinary case */
632 byte_count = (uint32_t)sr->smb_bcc;
633 }
634
635 (void) MBC_SHADOW_CHAIN(&sr->smb_data, &sr->command,
636 sr->command.chain_offset, byte_count);
637
638 sr->command.chain_offset += byte_count;
639 if (sr->command.chain_offset > sr->command.max_bytes) {
640 disconnect = B_TRUE;
641 goto report_error;
642 }
643
644 /* Store pointers for later */
645 sr->cur_reply_offset = sr->reply.chain_offset;
646
647 if (is_andx_com(sr->smb_com)) {
648 /* Peek ahead and don't disturb vwv */
649 if (smb_mbc_peek(&sr->smb_vwv, sr->smb_vwv.chain_offset, "b.w",
650 &sr->andx_com, &sr->andx_off) < 0) {
651 disconnect = B_TRUE;
652 goto report_error;
653 }
654 } else {
655 sr->andx_com = (unsigned char)-1;
656 }
657
658 mutex_enter(&sr->sr_mutex);
659 switch (sr->sr_state) {
660 case SMB_REQ_STATE_SUBMITTED:
661 case SMB_REQ_STATE_CLEANED_UP:
662 sr->sr_state = SMB_REQ_STATE_ACTIVE;
663 break;
664 case SMB_REQ_STATE_CANCELED:
665 break;
666 default:
667 ASSERT(0);
668 break;
669 }
670 mutex_exit(&sr->sr_mutex);
671
672 /*
673 * Setup UID and TID information (if required). Both functions
674 * will set the sr credentials. In domain mode, the user and
675 * tree credentials should be the same. In share mode, the
676 * tree credentials (defined in the share definition) should
677 * override the user credentials.
678 */
679 if (!(sdd->sdt_flags & SDDF_SUPPRESS_UID) && (sr->uid_user == NULL)) {
680 sr->uid_user = smb_session_lookup_uid(session, sr->smb_uid);
681 if (sr->uid_user == NULL) {
682 smbsr_error(sr, 0, ERRSRV, ERRbaduid);
683 smbsr_cleanup(sr);
684 goto report_error;
685 }
686
687 sr->user_cr = smb_user_getcred(sr->uid_user);
688 }
689 if (!(sdd->sdt_flags & SDDF_SUPPRESS_TID) && (sr->tid_tree == NULL)) {
690 sr->tid_tree = smb_session_lookup_tree(session, sr->smb_tid);
691 if (sr->tid_tree == NULL) {
692 smbsr_error(sr, 0, ERRSRV, ERRinvnid);
693 smbsr_cleanup(sr);
694 goto report_error;
695 }
696 }
697
698 /*
699 * If the command is not a read raw request we can set the
700 * state of the session back to SMB_SESSION_STATE_NEGOTIATED
701 * (if the current state is SMB_SESSION_STATE_OPLOCK_BREAKING).
702 * Otherwise we let the read raw handler to deal with it.
703 */
704 smb_rwx_rwenter(&session->s_lock, RW_READER);
705 if (session->s_state == SMB_SESSION_STATE_OPLOCK_BREAKING) {
706 (void) smb_rwx_rwupgrade(&session->s_lock);
707 if (session->s_state == SMB_SESSION_STATE_OPLOCK_BREAKING)
708 session->s_state = SMB_SESSION_STATE_NEGOTIATED;
709 }
710 smb_rwx_rwexit(&session->s_lock);
711
712 sr->sr_time_start = gethrtime();
713 if ((sdrc = (*sdd->sdt_pre_op)(sr)) == SDRC_SUCCESS)
714 sdrc = (*sdd->sdt_function)(sr);
715
716 if (sdrc != SDRC_SR_KEPT) {
717 (*sdd->sdt_post_op)(sr);
718 smbsr_cleanup(sr);
719 }
720 smb_latency_add_sample(&sds->sdt_lat, gethrtime() - sr->sr_time_start);
721
722 atomic_add_64(&sds->sdt_txb,
723 (int64_t)(sr->reply.chain_offset - sr->sr_txb));
724
725 switch (sdrc) {
726 case SDRC_SUCCESS:
727 break;
728
729 case SDRC_DROP_VC:
730 disconnect = B_TRUE;
731 goto drop_connection;
732
733 case SDRC_NO_REPLY:
734 return (B_TRUE);
735
736 case SDRC_SR_KEPT:
737 return (B_FALSE);
738
739 case SDRC_ERROR:
740 goto report_error;
741
742 case SDRC_NOT_IMPLEMENTED:
743 default:
744 smbsr_error(sr, 0, ERRDOS, ERRbadfunc);
745 goto report_error;
746 }
747
748 /*
749 * If there's no AndX command, we're done.
750 */
751 if (sr->andx_com == 0xff)
752 goto reply_ready;
753
754 /*
755 * Otherwise, we have to back-patch the AndXCommand and AndXOffset
756 * and continue processing.
757 */
758 sr->andx_prev_wct = sr->cur_reply_offset;
759 (void) smb_mbc_poke(&sr->reply, sr->andx_prev_wct + 1, "b.w",
760 sr->andx_com, MBC_LENGTH(&sr->reply));
761
762 sr->command.chain_offset = sr->orig_request_hdr + sr->andx_off;
763 sr->smb_com = sr->andx_com;
764 goto andx_more;
765
766 report_error:
767 sr->reply.chain_offset = sr->cur_reply_offset;
768 (void) smb_mbc_encodef(&sr->reply, "bw", 0, 0);
769
770 sr->smb_wct = 0;
771 sr->smb_bcc = 0;
772
773 if (sr->smb_rcls == 0 && sr->smb_reh == 0 && sr->smb_err == 0)
774 smbsr_error(sr, 0, ERRSRV, ERRerror);
775
776 reply_ready:
777 smbsr_send_reply(sr);
778
779 drop_connection:
780 if (disconnect) {
781 smb_rwx_rwenter(&session->s_lock, RW_WRITER);
782 switch (session->s_state) {
783 case SMB_SESSION_STATE_DISCONNECTED:
784 case SMB_SESSION_STATE_TERMINATED:
785 break;
786 default:
787 smb_soshutdown(session->sock);
788 session->s_state = SMB_SESSION_STATE_DISCONNECTED;
789 break;
790 }
791 smb_rwx_rwexit(&session->s_lock);
792 }
793
794 return (B_TRUE);
795 }
796
797 int
smbsr_encode_empty_result(struct smb_request * sr)798 smbsr_encode_empty_result(struct smb_request *sr)
799 {
800 return (smbsr_encode_result(sr, 0, 0, "bw", 0, 0));
801 }
802
803 int
smbsr_encode_result(struct smb_request * sr,int wct,int bcc,char * fmt,...)804 smbsr_encode_result(struct smb_request *sr, int wct, int bcc, char *fmt, ...)
805 {
806 va_list ap;
807
808 if (MBC_LENGTH(&sr->reply) != sr->cur_reply_offset)
809 return (-1);
810
811 va_start(ap, fmt);
812 (void) smb_mbc_vencodef(&sr->reply, fmt, ap);
813 va_end(ap);
814
815 sr->smb_wct = (unsigned char)wct;
816 sr->smb_bcc = (uint16_t)bcc;
817
818 if (smbsr_check_result(sr, wct, bcc) != 0)
819 return (-1);
820
821 return (0);
822 }
823
824 static int
smbsr_check_result(struct smb_request * sr,int wct,int bcc)825 smbsr_check_result(struct smb_request *sr, int wct, int bcc)
826 {
827 int offset = sr->cur_reply_offset;
828 int total_bytes;
829 unsigned char temp, temp1;
830 struct mbuf *m;
831
832 total_bytes = 0;
833 m = sr->reply.chain;
834 while (m != 0) {
835 total_bytes += m->m_len;
836 m = m->m_next;
837 }
838
839 if ((offset + 3) > total_bytes)
840 return (-1);
841
842 (void) smb_mbc_peek(&sr->reply, offset, "b", &temp);
843 if (temp != wct)
844 return (-1);
845
846 if ((offset + (wct * 2 + 1)) > total_bytes)
847 return (-1);
848
849 /* reply wct & vwv seem ok, consider data now */
850 offset += wct * 2 + 1;
851
852 if ((offset + 2) > total_bytes)
853 return (-1);
854
855 (void) smb_mbc_peek(&sr->reply, offset, "bb", &temp, &temp1);
856 if (bcc == VAR_BCC) {
857 if ((temp != 0xFF) || (temp1 != 0xFF)) {
858 return (-1);
859 } else {
860 bcc = (total_bytes - offset) - 2;
861 (void) smb_mbc_poke(&sr->reply, offset, "bb",
862 bcc, bcc >> 8);
863 }
864 } else {
865 if ((temp != (bcc&0xFF)) || (temp1 != ((bcc>>8)&0xFF)))
866 return (-1);
867 }
868
869 offset += bcc + 2;
870
871 if (offset != total_bytes)
872 return (-1);
873
874 sr->smb_wct = (unsigned char)wct;
875 sr->smb_bcc = (uint16_t)bcc;
876 return (0);
877 }
878
879 int
smbsr_decode_vwv(struct smb_request * sr,char * fmt,...)880 smbsr_decode_vwv(struct smb_request *sr, char *fmt, ...)
881 {
882 int rc;
883 va_list ap;
884
885 va_start(ap, fmt);
886 rc = smb_mbc_vdecodef(&sr->smb_vwv, fmt, ap);
887 va_end(ap);
888
889 if (rc)
890 smbsr_error(sr, 0, ERRSRV, ERRerror);
891 return (rc);
892 }
893
894 int
smbsr_decode_data(struct smb_request * sr,char * fmt,...)895 smbsr_decode_data(struct smb_request *sr, char *fmt, ...)
896 {
897 int rc;
898 va_list ap;
899
900 va_start(ap, fmt);
901 rc = smb_mbc_vdecodef(&sr->smb_data, fmt, ap);
902 va_end(ap);
903
904 if (rc)
905 smbsr_error(sr, 0, ERRSRV, ERRerror);
906 return (rc);
907 }
908
909 boolean_t
smbsr_decode_data_avail(smb_request_t * sr)910 smbsr_decode_data_avail(smb_request_t *sr)
911 {
912 return (sr->smb_data.chain_offset < sr->smb_data.max_bytes);
913 }
914
915 void
smbsr_send_reply(smb_request_t * sr)916 smbsr_send_reply(smb_request_t *sr)
917 {
918 if (SMB_TREE_IS_CASEINSENSITIVE(sr))
919 sr->smb_flg |= SMB_FLAGS_CASE_INSENSITIVE;
920 else
921 sr->smb_flg &= ~SMB_FLAGS_CASE_INSENSITIVE;
922
923 (void) smb_mbc_poke(&sr->reply, 0, SMB_HEADER_ED_FMT,
924 sr->first_smb_com,
925 sr->smb_rcls,
926 sr->smb_reh,
927 sr->smb_err,
928 sr->smb_flg | SMB_FLAGS_REPLY,
929 sr->smb_flg2,
930 sr->smb_pid_high,
931 sr->smb_sig,
932 sr->smb_tid,
933 sr->smb_pid,
934 sr->smb_uid,
935 sr->smb_mid);
936
937 if (sr->session->signing.flags & SMB_SIGNING_ENABLED)
938 smb_sign_reply(sr, NULL);
939
940 smb_server_inc_req(sr->session->s_server);
941 if (smb_session_send(sr->session, 0, &sr->reply) == 0)
942 sr->reply.chain = 0;
943 }
944
945 /*
946 * Map errno values to SMB and NT status values.
947 * Note: ESRCH is a special case to handle a streams lookup failure.
948 */
949 static const struct {
950 int errnum;
951 int errcls;
952 int errcode;
953 DWORD status32;
954 } const smb_errno_map[] = {
955 { ENOSPC, ERRDOS, ERROR_DISK_FULL, NT_STATUS_DISK_FULL },
956 { EDQUOT, ERRDOS, ERROR_DISK_FULL, NT_STATUS_DISK_FULL },
957 { EPERM, ERRSRV, ERRaccess, NT_STATUS_ACCESS_DENIED },
958 { ENOTDIR, ERRDOS, ERRbadpath, NT_STATUS_OBJECT_PATH_NOT_FOUND },
959 { EISDIR, ERRDOS, ERRbadpath, NT_STATUS_FILE_IS_A_DIRECTORY },
960 { ENOENT, ERRDOS, ERRbadfile, NT_STATUS_NO_SUCH_FILE },
961 { ENOTEMPTY, ERRDOS, ERROR_DIR_NOT_EMPTY,
962 NT_STATUS_DIRECTORY_NOT_EMPTY },
963 { EILSEQ, ERRDOS, ERROR_INVALID_NAME,
964 NT_STATUS_OBJECT_NAME_INVALID },
965 { EACCES, ERRDOS, ERRnoaccess, NT_STATUS_ACCESS_DENIED },
966 { ENOMEM, ERRDOS, ERRnomem, NT_STATUS_NO_MEMORY },
967 { EIO, ERRHRD, ERRgeneral, NT_STATUS_IO_DEVICE_ERROR },
968 { EXDEV, ERRSRV, ERRdiffdevice, NT_STATUS_NOT_SAME_DEVICE },
969 { EREMOTE, ERRSRV, ERRbadpath, NT_STATUS_PATH_NOT_COVERED},
970 { EROFS, ERRHRD, ERRnowrite, NT_STATUS_ACCESS_DENIED },
971 { ESTALE, ERRDOS, ERRbadfid, NT_STATUS_INVALID_HANDLE },
972 { EBADF, ERRDOS, ERRbadfid, NT_STATUS_INVALID_HANDLE },
973 { ENOTSOCK, ERRDOS, ERRbadfid, NT_STATUS_INVALID_HANDLE },
974 { EPIPE, ERRDOS, ERROR_BROKEN_PIPE, NT_STATUS_PIPE_BROKEN },
975 { EEXIST, ERRDOS, ERRfilexists, NT_STATUS_OBJECT_NAME_COLLISION },
976 { ENXIO, ERRSRV, ERRinvdevice, NT_STATUS_BAD_DEVICE_TYPE },
977 { ESRCH, ERRDOS, ERROR_FILE_NOT_FOUND,
978 NT_STATUS_OBJECT_NAME_NOT_FOUND },
979 /*
980 * It's not clear why smb_read_common effectively returns
981 * ERRnoaccess if a range lock prevents access and smb_write_common
982 * effectively returns ERRaccess. This table entry is used by
983 * smb_read_common and preserves the behavior that was there before.
984 */
985 { ERANGE, ERRDOS, ERRnoaccess, NT_STATUS_FILE_LOCK_CONFLICT }
986 };
987
988 void
smbsr_map_errno(int errnum,smb_error_t * err)989 smbsr_map_errno(int errnum, smb_error_t *err)
990 {
991 int i;
992
993 for (i = 0; i < sizeof (smb_errno_map)/sizeof (smb_errno_map[0]); ++i) {
994 if (smb_errno_map[i].errnum == errnum) {
995 err->status = smb_errno_map[i].status32;
996 err->errcls = smb_errno_map[i].errcls;
997 err->errcode = smb_errno_map[i].errcode;
998 return;
999 }
1000 }
1001
1002 err->status = NT_STATUS_INTERNAL_ERROR;
1003 err->errcls = ERRDOS;
1004 err->errcode = ERROR_INTERNAL_ERROR;
1005 }
1006
1007 void
smbsr_errno(struct smb_request * sr,int errnum)1008 smbsr_errno(struct smb_request *sr, int errnum)
1009 {
1010 smbsr_map_errno(errnum, &sr->smb_error);
1011 smbsr_set_error(sr, &sr->smb_error);
1012 }
1013
1014 /*
1015 * Report a request processing status (error or warning).
1016 */
1017 void
smbsr_status(smb_request_t * sr,DWORD status,uint16_t errcls,uint16_t errcode)1018 smbsr_status(smb_request_t *sr, DWORD status, uint16_t errcls, uint16_t errcode)
1019 {
1020 sr->smb_error.status = status;
1021 sr->smb_error.errcls = errcls;
1022 sr->smb_error.errcode = errcode;
1023
1024 smbsr_set_error(sr, &sr->smb_error);
1025 }
1026
1027 /*
1028 * Setup a request processing error. This function can be used to
1029 * report 32-bit status codes or DOS errors. Set the status code
1030 * to 0 (NT_STATUS_SUCCESS) to explicitly report a DOS error,
1031 * regardless of the client capabilities.
1032 *
1033 * If status is non-zero and the client supports 32-bit status
1034 * codes, report the status. Otherwise, report the DOS error.
1035 */
1036 void
smbsr_set_error(smb_request_t * sr,smb_error_t * err)1037 smbsr_set_error(smb_request_t *sr, smb_error_t *err)
1038 {
1039 uint32_t status;
1040 uint32_t capabilities;
1041
1042 ASSERT(sr);
1043 ASSERT(err);
1044
1045 status = err->status;
1046 capabilities = sr->session->capabilities;
1047
1048 if ((err->errcls == 0) && (err->errcode == 0)) {
1049 capabilities |= CAP_STATUS32;
1050 if (status == 0)
1051 status = NT_STATUS_INTERNAL_ERROR;
1052 }
1053
1054 if ((capabilities & CAP_STATUS32) && (status != 0)) {
1055 sr->smb_rcls = status & 0xff;
1056 sr->smb_reh = (status >> 8) & 0xff;
1057 sr->smb_err = status >> 16;
1058 sr->smb_flg2 |= SMB_FLAGS2_NT_STATUS;
1059 } else {
1060 if ((err->errcls == 0) || (err->errcode == 0)) {
1061 sr->smb_rcls = ERRSRV;
1062 sr->smb_err = ERRerror;
1063 } else {
1064 sr->smb_rcls = (uint8_t)err->errcls;
1065 sr->smb_err = (uint16_t)err->errcode;
1066 }
1067 }
1068 }
1069
1070 smb_xa_t *
smbsr_lookup_xa(smb_request_t * sr)1071 smbsr_lookup_xa(smb_request_t *sr)
1072 {
1073 ASSERT(sr->r_xa == 0);
1074
1075 sr->r_xa = smb_xa_find(sr->session, sr->smb_pid, sr->smb_mid);
1076 return (sr->r_xa);
1077 }
1078
1079 void
smbsr_release_file(smb_request_t * sr)1080 smbsr_release_file(smb_request_t *sr)
1081 {
1082 smb_ofile_t *of = sr->fid_ofile;
1083
1084 sr->fid_ofile = NULL;
1085 (void) smb_ofile_release(of);
1086 }
1087
1088 void
smbsr_lookup_file(smb_request_t * sr)1089 smbsr_lookup_file(smb_request_t *sr)
1090 {
1091 if (sr->fid_ofile == NULL)
1092 sr->fid_ofile = smb_ofile_lookup_by_fid(sr, sr->smb_fid);
1093 }
1094
1095 static int
is_andx_com(unsigned char com)1096 is_andx_com(unsigned char com)
1097 {
1098 switch (com) {
1099 case SMB_COM_LOCKING_ANDX:
1100 case SMB_COM_OPEN_ANDX:
1101 case SMB_COM_READ_ANDX:
1102 case SMB_COM_WRITE_ANDX:
1103 case SMB_COM_SESSION_SETUP_ANDX:
1104 case SMB_COM_LOGOFF_ANDX:
1105 case SMB_COM_TREE_CONNECT_ANDX:
1106 case SMB_COM_NT_CREATE_ANDX:
1107 return (1);
1108 }
1109 return (0);
1110 }
1111
1112 /*
1113 * Invalid command stubs.
1114 *
1115 * SmbWriteComplete is sent to acknowledge completion of raw write requests.
1116 * We never send raw write commands to other servers so, if we receive
1117 * SmbWriteComplete, we treat it as an error.
1118 *
1119 * The Read/Write Block Multiplexed (mpx) protocol is used to maximize
1120 * performance when reading/writing a large block of data: it can be
1121 * used in parallel with other client/server operations. The mpx sub-
1122 * protocol is not supported because we support only connection oriented
1123 * transports and NT supports mpx only over connectionless transports.
1124 */
1125 smb_sdrc_t
smb_pre_invalid(smb_request_t * sr)1126 smb_pre_invalid(smb_request_t *sr)
1127 {
1128 DTRACE_SMB_1(op__Invalid__start, smb_request_t *, sr);
1129 return (SDRC_SUCCESS);
1130 }
1131
1132 void
smb_post_invalid(smb_request_t * sr)1133 smb_post_invalid(smb_request_t *sr)
1134 {
1135 DTRACE_SMB_1(op__Invalid__done, smb_request_t *, sr);
1136 }
1137
1138 smb_sdrc_t
smb_com_invalid(smb_request_t * sr)1139 smb_com_invalid(smb_request_t *sr)
1140 {
1141 smb_sdrc_t sdrc;
1142
1143 switch (sr->smb_com) {
1144 case SMB_COM_WRITE_COMPLETE:
1145 smbsr_error(sr, 0, ERRSRV, ERRerror);
1146 sdrc = SDRC_ERROR;
1147 break;
1148
1149 default:
1150 smbsr_error(sr, NT_STATUS_NOT_IMPLEMENTED,
1151 ERRDOS, ERROR_INVALID_FUNCTION);
1152 sdrc = SDRC_NOT_IMPLEMENTED;
1153 break;
1154 }
1155
1156 return (sdrc);
1157 }
1158
1159 /*
1160 * smb_dispatch_stats_init
1161 *
1162 * Initializes dispatch statistics.
1163 */
1164 void
smb_dispatch_stats_init(smb_server_t * sv)1165 smb_dispatch_stats_init(smb_server_t *sv)
1166 {
1167 smb_disp_stats_t *sds = sv->sv_disp_stats;
1168 smb_kstat_req_t *ksr;
1169 int ks_ndata;
1170 int i;
1171
1172 ksr = ((smbsrv_kstats_t *)sv->sv_ksp->ks_data)->ks_reqs;
1173
1174 for (i = 0; i < SMB_COM_NUM; i++, ksr++) {
1175 smb_latency_init(&sds[i].sdt_lat);
1176 (void) strlcpy(ksr->kr_name, smb_disp_table[i].sdt_name,
1177 sizeof (ksr->kr_name));
1178 }
1179 /* Legacy Statistics */
1180 for (i = 0, ks_ndata = 0; i < SMB_COM_NUM; i++) {
1181 if (smb_disp_table[i].sdt_function != smb_com_invalid)
1182 ks_ndata++;
1183 }
1184 }
1185
1186 /*
1187 * smb_dispatch_stats_fini
1188 *
1189 * Frees and destroyes the resources used for statistics.
1190 */
1191 void
smb_dispatch_stats_fini(smb_server_t * sv)1192 smb_dispatch_stats_fini(smb_server_t *sv)
1193 {
1194 smb_disp_stats_t *sds = sv->sv_disp_stats;
1195 int i;
1196
1197 for (i = 0; i < SMB_COM_NUM; i++)
1198 smb_latency_destroy(&sds[i].sdt_lat);
1199 }
1200
1201 void
smb_dispatch_stats_update(smb_server_t * sv,smb_kstat_req_t * ksr,int first,int nreq)1202 smb_dispatch_stats_update(smb_server_t *sv,
1203 smb_kstat_req_t *ksr, int first, int nreq)
1204 {
1205 smb_disp_stats_t *sds = sv->sv_disp_stats;
1206 int i;
1207 int last;
1208
1209 last = first + nreq - 1;
1210
1211 if ((first < SMB_COM_NUM) && (last < SMB_COM_NUM)) {
1212 for (i = first; i <= last; i++, ksr++) {
1213 ksr->kr_rxb = sds[i].sdt_rxb;
1214 ksr->kr_txb = sds[i].sdt_txb;
1215 mutex_enter(&sds[i].sdt_lat.ly_mutex);
1216 ksr->kr_nreq = sds[i].sdt_lat.ly_a_nreq;
1217 ksr->kr_sum = sds[i].sdt_lat.ly_a_sum;
1218 ksr->kr_a_mean = sds[i].sdt_lat.ly_a_mean;
1219 ksr->kr_a_stddev =
1220 sds[i].sdt_lat.ly_a_stddev;
1221 ksr->kr_d_mean = sds[i].sdt_lat.ly_d_mean;
1222 ksr->kr_d_stddev =
1223 sds[i].sdt_lat.ly_d_stddev;
1224 sds[i].sdt_lat.ly_d_mean = 0;
1225 sds[i].sdt_lat.ly_d_nreq = 0;
1226 sds[i].sdt_lat.ly_d_stddev = 0;
1227 sds[i].sdt_lat.ly_d_sum = 0;
1228 mutex_exit(&sds[i].sdt_lat.ly_mutex);
1229 }
1230 }
1231 }
1232