xref: /illumos-gate/usr/src/uts/common/fs/smbsrv/smb_rename.c (revision 93bc28dbaee6387120d48b12b3dc1ba5f7418e6e)
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 2017 Nexenta Systems, Inc.  All rights reserved.
24  */
25 
26 #include <sys/synch.h>
27 #include <smbsrv/smb_kproto.h>
28 #include <smbsrv/smb_fsops.h>
29 #include <sys/nbmlock.h>
30 
31 /*
32  * NT_RENAME InformationLevels:
33  *
34  * SMB_NT_RENAME_MOVE_CLUSTER_INFO	Server returns invalid parameter.
35  * SMB_NT_RENAME_SET_LINK_INFO		Create a hard link to a file.
36  * SMB_NT_RENAME_RENAME_FILE		In-place rename of a file.
37  * SMB_NT_RENAME_MOVE_FILE		Move (rename) a file.
38  */
39 #define	SMB_NT_RENAME_MOVE_CLUSTER_INFO	0x0102
40 #define	SMB_NT_RENAME_SET_LINK_INFO	0x0103
41 #define	SMB_NT_RENAME_RENAME_FILE	0x0104
42 #define	SMB_NT_RENAME_MOVE_FILE		0x0105
43 
44 /*
45  * smb_com_rename
46  *
47  * Rename a file. Files OldFileName must exist and NewFileName must not.
48  * Both pathnames must be relative to the Tid specified in the request.
49  * Open files may be renamed.
50  *
51  * Multiple files may be renamed in response to a single request as Rename
52  * File supports wildcards in the file name (last component of the path).
53  * NOTE: we don't support rename with wildcards.
54  *
55  * SearchAttributes indicates the attributes that the target file(s) must
56  * have. If SearchAttributes is zero then only normal files are renamed.
57  * If the system file or hidden attributes are specified then the rename
58  * is inclusive - both the specified type(s) of files and normal files are
59  * renamed.
60  */
61 smb_sdrc_t
smb_pre_rename(smb_request_t * sr)62 smb_pre_rename(smb_request_t *sr)
63 {
64 	smb_fqi_t *src_fqi = &sr->arg.dirop.fqi;
65 	smb_fqi_t *dst_fqi = &sr->arg.dirop.dst_fqi;
66 	int rc;
67 
68 	if ((rc = smbsr_decode_vwv(sr, "w", &src_fqi->fq_sattr)) == 0) {
69 		rc = smbsr_decode_data(sr, "%SS", sr, &src_fqi->fq_path.pn_path,
70 		    &dst_fqi->fq_path.pn_path);
71 
72 		dst_fqi->fq_sattr = 0;
73 	}
74 
75 	DTRACE_SMB_START(op__Rename, smb_request_t *, sr); /* arg.dirop */
76 
77 	return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
78 }
79 
80 void
smb_post_rename(smb_request_t * sr)81 smb_post_rename(smb_request_t *sr)
82 {
83 	DTRACE_SMB_DONE(op__Rename, smb_request_t *, sr);
84 }
85 
86 smb_sdrc_t
smb_com_rename(smb_request_t * sr)87 smb_com_rename(smb_request_t *sr)
88 {
89 	smb_fqi_t	*src_fqi = &sr->arg.dirop.fqi;
90 	smb_fqi_t	*dst_fqi = &sr->arg.dirop.dst_fqi;
91 	smb_pathname_t	*src_pn = &src_fqi->fq_path;
92 	smb_pathname_t	*dst_pn = &dst_fqi->fq_path;
93 	uint32_t	status;
94 
95 	if (!STYPE_ISDSK(sr->tid_tree->t_res_type)) {
96 		smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
97 		    ERRDOS, ERROR_ACCESS_DENIED);
98 		return (SDRC_ERROR);
99 	}
100 
101 	smb_pathname_init(sr, src_pn, src_pn->pn_path);
102 	smb_pathname_init(sr, dst_pn, dst_pn->pn_path);
103 	if (!smb_pathname_validate(sr, src_pn) ||
104 	    !smb_pathname_validate(sr, dst_pn)) {
105 		return (SDRC_ERROR);
106 	}
107 
108 	status = smb_common_rename(sr, src_fqi, dst_fqi);
109 	if (status != 0) {
110 		smbsr_error(sr, status, 0, 0);
111 		return (SDRC_ERROR);
112 	}
113 
114 	(void) smbsr_encode_empty_result(sr);
115 	return (SDRC_SUCCESS);
116 }
117 
118 /*
119  * smb_com_nt_rename
120  *
121  * Rename a file. Files OldFileName must exist and NewFileName must not.
122  * Both pathnames must be relative to the Tid specified in the request.
123  * Open files may be renamed.
124  *
125  * SearchAttributes indicates the attributes that the target file(s) must
126  * have. If SearchAttributes is zero then only normal files are renamed.
127  * If the system file or hidden attributes are specified then the rename
128  * is inclusive - both the specified type(s) of files and normal files are
129  * renamed.
130  */
131 smb_sdrc_t
smb_pre_nt_rename(smb_request_t * sr)132 smb_pre_nt_rename(smb_request_t *sr)
133 {
134 	smb_fqi_t *src_fqi = &sr->arg.dirop.fqi;
135 	smb_fqi_t *dst_fqi = &sr->arg.dirop.dst_fqi;
136 	uint32_t clusters;
137 	int rc;
138 
139 	rc = smbsr_decode_vwv(sr, "wwl", &src_fqi->fq_sattr,
140 	    &sr->arg.dirop.info_level, &clusters);
141 	if (rc == 0) {
142 		rc = smbsr_decode_data(sr, "%SS", sr,
143 		    &src_fqi->fq_path.pn_path, &dst_fqi->fq_path.pn_path);
144 
145 		dst_fqi->fq_sattr = 0;
146 	}
147 
148 	DTRACE_SMB_START(op__NtRename, smb_request_t *, sr); /* arg.dirop */
149 
150 	return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
151 }
152 
153 void
smb_post_nt_rename(smb_request_t * sr)154 smb_post_nt_rename(smb_request_t *sr)
155 {
156 	DTRACE_SMB_DONE(op__NtRename, smb_request_t *, sr);
157 }
158 
159 smb_sdrc_t
smb_com_nt_rename(smb_request_t * sr)160 smb_com_nt_rename(smb_request_t *sr)
161 {
162 	smb_fqi_t	*src_fqi = &sr->arg.dirop.fqi;
163 	smb_fqi_t	*dst_fqi = &sr->arg.dirop.dst_fqi;
164 	smb_pathname_t	*src_pn = &src_fqi->fq_path;
165 	smb_pathname_t	*dst_pn = &dst_fqi->fq_path;
166 	uint32_t	status;
167 
168 	if (!STYPE_ISDSK(sr->tid_tree->t_res_type)) {
169 		smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
170 		    ERRDOS, ERROR_ACCESS_DENIED);
171 		return (SDRC_ERROR);
172 	}
173 
174 	smb_pathname_init(sr, src_pn, src_pn->pn_path);
175 	smb_pathname_init(sr, dst_pn, dst_pn->pn_path);
176 	if (!smb_pathname_validate(sr, src_pn) ||
177 	    !smb_pathname_validate(sr, dst_pn)) {
178 		return (SDRC_ERROR);
179 	}
180 
181 	if (smb_contains_wildcards(src_pn->pn_path)) {
182 		smbsr_error(sr, NT_STATUS_OBJECT_PATH_SYNTAX_BAD,
183 		    ERRDOS, ERROR_BAD_PATHNAME);
184 		return (SDRC_ERROR);
185 	}
186 
187 	switch (sr->arg.dirop.info_level) {
188 	case SMB_NT_RENAME_SET_LINK_INFO:
189 		status = smb_make_link(sr, src_fqi, dst_fqi);
190 		break;
191 	case SMB_NT_RENAME_RENAME_FILE:
192 	case SMB_NT_RENAME_MOVE_FILE:
193 		status = smb_common_rename(sr, src_fqi, dst_fqi);
194 		break;
195 	case SMB_NT_RENAME_MOVE_CLUSTER_INFO:
196 		status = NT_STATUS_INVALID_PARAMETER;
197 		break;
198 	default:
199 		status = NT_STATUS_ACCESS_DENIED;
200 		break;
201 	}
202 
203 	if (status != 0) {
204 		smbsr_error(sr, status, 0, 0);
205 		return (SDRC_ERROR);
206 	}
207 
208 	(void) smbsr_encode_empty_result(sr);
209 	return (SDRC_SUCCESS);
210 }
211 
212 /*
213  * smb_nt_transact_rename
214  *
215  * Windows servers return SUCCESS without renaming file.
216  * The only check required is to check that the handle (fid) is valid.
217  */
218 smb_sdrc_t
smb_nt_transact_rename(smb_request_t * sr,smb_xa_t * xa)219 smb_nt_transact_rename(smb_request_t *sr, smb_xa_t *xa)
220 {
221 	if (smb_mbc_decodef(&xa->req_param_mb, "w", &sr->smb_fid) != 0)
222 		return (SDRC_ERROR);
223 
224 	smbsr_lookup_file(sr);
225 	if (sr->fid_ofile == NULL) {
226 		smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid);
227 		return (SDRC_ERROR);
228 	}
229 	smbsr_release_file(sr);
230 
231 	return (SDRC_SUCCESS);
232 }
233