1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright 2014 Nexenta Systems, Inc. All rights reserved.
24 */
25
26 /*
27 * Common functions supporting both:
28 * SMB1 Trans2 Set File/Path Info,
29 * SMB2 Set File Info
30 */
31
32 #include <smbsrv/smb_kproto.h>
33 #include <smbsrv/smb_fsops.h>
34
35 /*
36 * smb_set_basic_info
37 * [MS-FSCC] 2.4.7
38 * FileBasicInformation
39 * SMB_SET_FILE_BASIC_INFO
40 * SMB_FILE_BASIC_INFORMATION
41 *
42 * Sets basic file/path information.
43 *
44 * It is not valid to set FILE_ATTRIBUTE_DIRECTORY if the
45 * target is not a directory.
46 *
47 * For compatibility with windows servers:
48 * - if the specified attributes have ONLY FILE_ATTRIBUTE_NORMAL set
49 * clear (0) the file's attributes.
50 * - if the specified attributes are 0 do NOT change the file's attributes.
51 */
52 uint32_t
smb_set_basic_info(smb_request_t * sr,smb_setinfo_t * si)53 smb_set_basic_info(smb_request_t *sr, smb_setinfo_t *si)
54 {
55 smb_attr_t *attr = &si->si_attr;
56 smb_node_t *node = si->si_node;
57 uint64_t crtime, atime, mtime, ctime;
58 uint32_t attributes;
59 int rc;
60
61 if (smb_mbc_decodef(&si->si_data, "qqqql",
62 &crtime, &atime, &mtime, &ctime, &attributes) != 0)
63 return (NT_STATUS_INFO_LENGTH_MISMATCH);
64
65 if ((attributes & FILE_ATTRIBUTE_DIRECTORY) &&
66 (!smb_node_is_dir(node)))
67 return (NT_STATUS_INVALID_PARAMETER);
68
69 bzero(attr, sizeof (*attr));
70 if (atime != 0 && atime != (uint64_t)-1) {
71 smb_time_nt_to_unix(atime, &attr->sa_vattr.va_atime);
72 attr->sa_mask |= SMB_AT_ATIME;
73 }
74 if (mtime != 0 && mtime != (uint64_t)-1) {
75 smb_time_nt_to_unix(mtime, &attr->sa_vattr.va_mtime);
76 attr->sa_mask |= SMB_AT_MTIME;
77 }
78 if (ctime != 0 && ctime != (uint64_t)-1) {
79 smb_time_nt_to_unix(ctime, &attr->sa_vattr.va_ctime);
80 attr->sa_mask |= SMB_AT_CTIME;
81 }
82 if (crtime != 0 && crtime != (uint64_t)-1) {
83 smb_time_nt_to_unix(crtime, &attr->sa_crtime);
84 attr->sa_mask |= SMB_AT_CRTIME;
85 }
86
87 if (attributes != 0) {
88 attr->sa_dosattr = attributes;
89 attr->sa_mask |= SMB_AT_DOSATTR;
90 }
91
92 rc = smb_node_setattr(sr, node, sr->user_cr, sr->fid_ofile, attr);
93 if (rc != 0)
94 return (smb_errno2status(rc));
95
96 return (0);
97 }
98
99 /*
100 * smb_set_eof_info
101 * FileEndOfFileInformation
102 * SMB_SET_FILE_END_OF_FILE_INFO
103 * SMB_FILE_END_OF_FILE_INFORMATION
104 */
105 uint32_t
smb_set_eof_info(smb_request_t * sr,smb_setinfo_t * si)106 smb_set_eof_info(smb_request_t *sr, smb_setinfo_t *si)
107 {
108 smb_attr_t *attr = &si->si_attr;
109 smb_node_t *node = si->si_node;
110 uint64_t eof;
111 int rc;
112
113 if (smb_mbc_decodef(&si->si_data, "q", &eof) != 0)
114 return (NT_STATUS_INFO_LENGTH_MISMATCH);
115
116 if (smb_node_is_dir(node))
117 return (NT_STATUS_INVALID_PARAMETER);
118
119 /* If opened by path, break exclusive oplock */
120 if (sr->fid_ofile == NULL)
121 (void) smb_oplock_break(sr, node,
122 SMB_OPLOCK_BREAK_EXCLUSIVE | SMB_OPLOCK_BREAK_TO_NONE);
123
124 bzero(attr, sizeof (*attr));
125 attr->sa_mask = SMB_AT_SIZE;
126 attr->sa_vattr.va_size = (u_offset_t)eof;
127 rc = smb_node_setattr(sr, node, sr->user_cr, sr->fid_ofile, attr);
128 if (rc != 0)
129 return (smb_errno2status(rc));
130
131 smb_oplock_break_levelII(node);
132 return (0);
133 }
134
135 /*
136 * smb_set_alloc_info
137 * FileAllocationInformation
138 * SMB_SET_FILE_ALLOCATION_INFO
139 * SMB_FILE_ALLOCATION_INFORMATION
140 */
141 uint32_t
smb_set_alloc_info(smb_request_t * sr,smb_setinfo_t * si)142 smb_set_alloc_info(smb_request_t *sr, smb_setinfo_t *si)
143 {
144 smb_attr_t *attr = &si->si_attr;
145 smb_node_t *node = si->si_node;
146 uint64_t allocsz;
147 int rc;
148
149 if (smb_mbc_decodef(&si->si_data, "q", &allocsz) != 0)
150 return (NT_STATUS_INFO_LENGTH_MISMATCH);
151
152 if (smb_node_is_dir(node))
153 return (NT_STATUS_INVALID_PARAMETER);
154
155 /* If opened by path, break exclusive oplock */
156 if (sr->fid_ofile == NULL)
157 (void) smb_oplock_break(sr, node,
158 SMB_OPLOCK_BREAK_EXCLUSIVE | SMB_OPLOCK_BREAK_TO_NONE);
159
160 bzero(attr, sizeof (*attr));
161 attr->sa_mask = SMB_AT_ALLOCSZ;
162 attr->sa_allocsz = (u_offset_t)allocsz;
163 rc = smb_node_setattr(sr, node, sr->user_cr, sr->fid_ofile, attr);
164 if (rc != 0)
165 return (smb_errno2status(rc));
166
167 smb_oplock_break_levelII(node);
168 return (0);
169 }
170
171 /*
172 * smb_set_disposition_info
173 * See:
174 * FileDispositionInformation
175 * SMB_SET_FILE_DISPOSITION_INFO
176 * SMB_FILE_DISPOSITION_INFORMATION
177 *
178 * Set/Clear DELETE_ON_CLOSE flag for an open file.
179 * File should have been opened with DELETE access otherwise
180 * the operation is not permitted.
181 *
182 * NOTE: The node should be marked delete-on-close upon the receipt
183 * of the Trans2SetFileInfo(SetDispositionInfo) if mark_delete is set.
184 * It is different than both SmbNtCreateAndX and SmbNtTransact, which
185 * set delete-on-close on the ofile and defer setting the flag on the
186 * node until the file is closed.
187 *
188 * Observation of Windows 2000 indicates the following:
189 *
190 * 1) If a file is not opened with delete-on-close create options and
191 * the delete-on-close is set via Trans2SetFileInfo(SetDispositionInfo)
192 * using that open file handle, any subsequent open requests will fail
193 * with DELETE_PENDING.
194 *
195 * 2) If a file is opened with delete-on-close create options and the
196 * client attempts to unset delete-on-close via Trans2SetFileInfo
197 * (SetDispositionInfo) prior to the file close, any subsequent open
198 * requests will still fail with DELETE_PENDING after the file is closed.
199 *
200 * 3) If a file is opened with delete-on-close create options and that
201 * file handle (not the last open handle and the only file handle
202 * with delete-on-close set) is closed. Any subsequent open requests
203 * will fail with DELETE_PENDING. Unsetting delete-on-close via
204 * Trans2SetFileInfo(SetDispositionInfo) at this time will unset the
205 * node delete-on-close flag, which will result in the file not being
206 * removed even after the last file handle is closed.
207 */
208 uint32_t
smb_set_disposition_info(smb_request_t * sr,smb_setinfo_t * si)209 smb_set_disposition_info(smb_request_t *sr, smb_setinfo_t *si)
210 {
211 smb_node_t *node = si->si_node;
212 smb_ofile_t *of = sr->fid_ofile;
213 uint8_t mark_delete;
214 uint32_t flags = 0;
215
216 if (smb_mbc_decodef(&si->si_data, "b", &mark_delete) != 0)
217 return (NT_STATUS_INFO_LENGTH_MISMATCH);
218
219 if ((of == NULL) || !(smb_ofile_granted_access(of) & DELETE))
220 return (NT_STATUS_ACCESS_DENIED);
221
222 if (mark_delete) {
223 if (SMB_TREE_SUPPORTS_CATIA(sr))
224 flags |= SMB_CATIA;
225 return (smb_node_set_delete_on_close(node, of->f_cr, flags));
226 } else {
227 smb_node_reset_delete_on_close(node);
228 }
229
230 return (NT_STATUS_SUCCESS);
231 }
232