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 2010 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 *
25 * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
26 */
27
28 /*
29 * Dispatch function for SMB2_IOCTL
30 * [MS-SMB2] 3.3.5.15
31 */
32
33 #include <smbsrv/smb2_kproto.h>
34 #include <smbsrv/winioctl.h>
35
36 struct smb2_ioctbl_ent {
37 uint32_t te_code;
38 uint32_t te_flags;
39 uint32_t (*te_func)(smb_request_t *, smb_fsctl_t *);
40 };
41 static struct smb2_ioctbl_ent smb2_ioc_tbl[];
42
43 /* te_flags */
44 #define ITF_IPC_ONLY 1
45 #define ITF_NO_FID 2
46 #define ITF_DISK_FID 4
47
48 smb_sdrc_t
49 smb2_ioctl(smb_request_t *sr)
50 {
51 smb2fid_t smb2fid;
52 smb_fsctl_t fsctl;
53 mbuf_chain_t in_mbc;
54 struct smb2_ioctbl_ent *te;
55 uint32_t InputOffset;
56 uint32_t MaxInputResp;
57 uint32_t OutputOffset;
58 uint32_t Flags;
59 uint32_t status;
60 uint16_t StructSize;
61 int rc = 0;
62
63 bzero(&in_mbc, sizeof (in_mbc));
64
65 /*
66 * SMB2 Ioctl request
67 */
68 rc = smb_mbc_decodef(
69 &sr->smb_data, "w..lqqlllllll4.",
70 &StructSize, /* w */
71 /* reserved .. */
72 &fsctl.CtlCode, /* l */
73 &smb2fid.persistent, /* q */
74 &smb2fid.temporal, /* q */
75 &InputOffset, /* l */
76 &fsctl.InputCount, /* l */
77 &MaxInputResp, /* l */
78 &OutputOffset, /* l */
79 &fsctl.OutputCount, /* l */
80 &fsctl.MaxOutputResp, /* l */
81 &Flags); /* l */
82 /* reserved2 4. */
83 if (rc || StructSize != 57)
84 return (SDRC_ERROR);
85
86 if (Flags != SMB2_0_IOCTL_IS_FSCTL) {
87 status = NT_STATUS_NOT_SUPPORTED;
88 goto errout;
89 }
90
91 for (te = smb2_ioc_tbl; te->te_code; te++) {
92 if (te->te_code == fsctl.CtlCode)
93 break;
94 }
95 if (te->te_code == 0) {
96 #ifdef DEBUG
97 cmn_err(CE_NOTE, "smb2_ioctl: unknown code 0x%x",
98 fsctl.CtlCode);
99 #endif
100 status = NT_STATUS_NOT_SUPPORTED;
101 goto errout;
102 }
103
104 /*
105 * Some requests are only valid on IPC$
106 */
107 if ((te->te_flags & ITF_IPC_ONLY) != 0 &&
108 !STYPE_ISIPC(sr->tid_tree->t_res_type)) {
109 status = NT_STATUS_INVALID_DEVICE_REQUEST;
110 goto errout;
111 }
112
113 /*
114 * Note: some ioctl commands don't need a FID.
115 */
116 if (te->te_flags & ITF_NO_FID) {
117 if (smb2fid.temporal != ~0LL) {
118 status = NT_STATUS_INVALID_PARAMETER;
119 goto errout;
120 }
121 } else {
122 status = smb2sr_lookup_fid(sr, &smb2fid);
123 if (status) {
124 status = NT_STATUS_FILE_CLOSED;
125 goto errout;
126 }
127 }
128
129 /*
130 * Note: some ioctls require a "disk" fid.
131 */
132 if (te->te_flags & ITF_DISK_FID) {
133 if (sr->fid_ofile == NULL ||
134 !SMB_FTYPE_IS_DISK(sr->fid_ofile->f_ftype)) {
135 status = NT_STATUS_INVALID_PARAMETER;
136 goto errout;
137 }
138 }
139
140 /*
141 * If there's an input buffer, setup a shadow.
142 */
143 if (fsctl.InputCount) {
144 if (InputOffset < (SMB2_HDR_SIZE + 56)) {
145 status = NT_STATUS_INVALID_PARAMETER;
146 goto errout;
147 }
148 rc = MBC_SHADOW_CHAIN(&in_mbc, &sr->smb_data,
149 sr->smb2_cmd_hdr + InputOffset, fsctl.InputCount);
150 if (rc) {
151 status = NT_STATUS_INVALID_PARAMETER;
152 goto errout;
153 }
154 }
155 fsctl.in_mbc = &in_mbc;
156
157 /*
158 * If output is possible, setup the output mbuf_chain
159 */
160 if (fsctl.MaxOutputResp > smb2_max_trans)
161 fsctl.MaxOutputResp = smb2_max_trans;
162 sr->raw_data.max_bytes = fsctl.MaxOutputResp;
163 fsctl.out_mbc = &sr->raw_data;
164
165 /*
166 * Dispatch to the handler for CtlCode
167 */
168 status = (te->te_func)(sr, &fsctl);
169 if (status != 0) {
170 sr->smb2_status = status;
171 if (NT_SC_SEVERITY(status) == NT_STATUS_SEVERITY_ERROR)
172 goto errout;
173 /* Warnings like NT_STATUS_BUFFER_OVERFLOW are OK. */
174 }
175
176 fsctl.InputCount = 0;
177 InputOffset = SMB2_HDR_SIZE + 48;
178
179 fsctl.OutputCount = MBC_LENGTH(&sr->raw_data);
180 OutputOffset = (fsctl.OutputCount) ? InputOffset : 0;
181
182 /*
183 * SMB2 Ioctl reply
184 */
185 StructSize = 49;
186 rc = smb_mbc_encodef(
187 &sr->reply, "w..lqqlllll4.#C",
188 StructSize, /* w */
189 /* reserved .. */
190 fsctl.CtlCode, /* l */
191 smb2fid.persistent, /* q */
192 smb2fid.temporal, /* q */
193 InputOffset, /* l */
194 fsctl.InputCount, /* l */
195 OutputOffset, /* l */
196 fsctl.OutputCount, /* l */
197 Flags, /* l */
198 /* reserved2 4. */
199 fsctl.OutputCount, /* # */
200 &sr->raw_data); /* C */
201 return ((rc) ? SDRC_ERROR : SDRC_SUCCESS);
202
203 errout:
204 smb2sr_put_error(sr, status);
205 return (SDRC_SUCCESS);
206 }
207
208 /* ARGSUSED */
209 static uint32_t
210 smb2_fsctl_notsup(smb_request_t *sr, smb_fsctl_t *fsctl)
211 {
212 return (NT_STATUS_NOT_SUPPORTED);
213 }
214
215 static struct smb2_ioctbl_ent
216 smb2_ioc_tbl[] = {
217
218 /*
219 * FILE_DEVICE_DFS (6)
220 */
221 { FSCTL_DFS_GET_REFERRALS,
222 ITF_IPC_ONLY | ITF_NO_FID, smb_dfs_get_referrals },
223 { FSCTL_DFS_GET_REFERRALS_EX,
224 ITF_IPC_ONLY | ITF_NO_FID, smb_dfs_get_referrals },
225
226 /*
227 * FILE_DEVICE_FILE_SYSTEM (9)
228 */
229 { FSCTL_SET_REPARSE_POINT, 0, smb2_fsctl_notsup },
230 { FSCTL_CREATE_OR_GET_OBJECT_ID, 0, smb2_fsctl_notsup },
231 { FSCTL_FILE_LEVEL_TRIM, 0, smb2_fsctl_notsup },
232
233 /*
234 * FILE_DEVICE_NAMED_PIPE (17)
235 */
236 { FSCTL_PIPE_PEEK,
237 ITF_IPC_ONLY, smb_opipe_fsctl },
238 { FSCTL_PIPE_TRANSCEIVE,
239 ITF_IPC_ONLY, smb_opipe_fsctl },
240 { FSCTL_PIPE_WAIT,
241 ITF_IPC_ONLY | ITF_NO_FID, smb_opipe_fsctl },
242
243 /*
244 * FILE_DEVICE_NETWORK_FILE_SYSTEM (20)
245 */
246 { FSCTL_SRV_ENUMERATE_SNAPSHOTS,
247 ITF_DISK_FID, smb_vss_enum_snapshots },
248 { FSCTL_SRV_REQUEST_RESUME_KEY, 0, smb2_fsctl_notsup },
249 { FSCTL_SRV_COPYCHUNK, 0, smb2_fsctl_notsup },
250 { FSCTL_SRV_COPYCHUNK_WRITE, 0, smb2_fsctl_notsup },
251 { FSCTL_SRV_READ_HASH, 0, smb2_fsctl_notsup },
252
253 { FSCTL_LMR_REQUEST_RESILIENCY,
254 ITF_NO_FID, smb2_fsctl_notsup },
255 { FSCTL_QUERY_NETWORK_INTERFACE_INFO,
256 ITF_NO_FID, smb2_fsctl_notsup },
257 { FSCTL_VALIDATE_NEGOTIATE_INFO,
258 ITF_NO_FID, smb2_fsctl_vneginfo },
259
260 /*
261 * End marker
262 */
263 { 0, 0, 0 }
264 };