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 2016 Nexenta Systems, Inc. All rights reserved.
24 */
25
26 #include <smbsrv/smb_kproto.h>
27
28 #define SMB_CREATE_NAMEBUF_SZ 16
29
30 /*
31 * Create a new file, or truncate an existing file to zero length,
32 * open the file and return a fid. The file is specified using a
33 * fully qualified name relative to the tree.
34 */
35 smb_sdrc_t
36 smb_pre_create(smb_request_t *sr)
37 {
38 struct open_param *op = &sr->arg.open;
39 int rc;
40
41 bzero(op, sizeof (sr->arg.open));
42
43 rc = smbsr_decode_vwv(sr, "wl", &op->dattr, &op->mtime.tv_sec);
44 if (rc == 0)
45 rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
46
47 op->create_disposition = FILE_OVERWRITE_IF;
48 op->create_options = FILE_NON_DIRECTORY_FILE;
49
50 DTRACE_SMB_2(op__Create__start, smb_request_t *, sr,
51 struct open_param *, op);
52
53 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
54 }
55
56 void
57 smb_post_create(smb_request_t *sr)
58 {
59 DTRACE_SMB_1(op__Create__done, smb_request_t *, sr);
60 }
61
62 smb_sdrc_t
63 smb_com_create(smb_request_t *sr)
64 {
65 if (smb_common_create(sr) != NT_STATUS_SUCCESS)
66 return (SDRC_ERROR);
67
68 if (smbsr_encode_result(sr, 1, 0, "bww", 1, sr->smb_fid, 0))
69 return (SDRC_ERROR);
70
71 return (SDRC_SUCCESS);
72 }
73
74 /*
75 * Create a new file and return a fid. The file is specified using
76 * a fully qualified name relative to the tree.
77 */
78 smb_sdrc_t
79 smb_pre_create_new(smb_request_t *sr)
80 {
81 struct open_param *op = &sr->arg.open;
82 int rc;
83
84 bzero(op, sizeof (sr->arg.open));
85
86 rc = smbsr_decode_vwv(sr, "wl", &op->dattr, &op->mtime.tv_sec);
87 if (rc == 0)
88 rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
89
90 op->create_disposition = FILE_CREATE;
91
92 DTRACE_SMB_2(op__CreateNew__start, smb_request_t *, sr,
93 struct open_param *, op);
94
95 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
96 }
97
98 void
99 smb_post_create_new(smb_request_t *sr)
100 {
101 DTRACE_SMB_1(op__CreateNew__done, smb_request_t *, sr);
102 }
103
104 smb_sdrc_t
105 smb_com_create_new(smb_request_t *sr)
106 {
107 if (smb_common_create(sr) != NT_STATUS_SUCCESS)
108 return (SDRC_ERROR);
109
110 if (smbsr_encode_result(sr, 1, 0, "bww", 1, sr->smb_fid, 0))
111 return (SDRC_ERROR);
112
113 return (SDRC_SUCCESS);
114 }
115
116 /*
117 * Create a unique file in the specified directory relative to the
118 * current tree. No attributes are specified.
119 */
120 smb_sdrc_t
121 smb_pre_create_temporary(smb_request_t *sr)
122 {
123 struct open_param *op = &sr->arg.open;
124 uint16_t reserved;
125 int rc;
126
127 bzero(op, sizeof (sr->arg.open));
128
129 rc = smbsr_decode_vwv(sr, "wl", &reserved, &op->mtime.tv_sec);
130 if (rc == 0)
131 rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
132
133 op->create_disposition = FILE_CREATE;
134
135 DTRACE_SMB_2(op__CreateTemporary__start, smb_request_t *, sr,
136 struct open_param *, op);
137
138 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
139 }
140
141 void
142 smb_post_create_temporary(smb_request_t *sr)
143 {
144 DTRACE_SMB_1(op__CreateTemporary__done, smb_request_t *, sr);
145 }
146
147 smb_sdrc_t
148 smb_com_create_temporary(smb_request_t *sr)
149 {
150 static uint16_t tmp_id = 10000;
151 struct open_param *op = &sr->arg.open;
152 char name[SMB_CREATE_NAMEBUF_SZ];
153 char *buf;
154 uint16_t bcc;
155
156 ++tmp_id;
157 bcc = 1; /* null terminator */
158 bcc += snprintf(name, SMB_CREATE_NAMEBUF_SZ, "tt%05d.tmp", tmp_id);
159
160 buf = smb_srm_zalloc(sr, MAXPATHLEN);
161 (void) snprintf(buf, MAXPATHLEN, "%s\\%s",
162 op->fqi.fq_path.pn_path, name);
163 op->fqi.fq_path.pn_path = buf;
164
165 if (smb_common_create(sr) != NT_STATUS_SUCCESS)
166 return (SDRC_ERROR);
167
168 if (smbsr_encode_result(sr, 1, VAR_BCC, "bww%s", 1, sr->smb_fid,
169 VAR_BCC, sr, name))
170 return (SDRC_ERROR);
171
172 return (SDRC_SUCCESS);
173 }
174
175 /*
176 * Common create file function. The file is opened in compatibility
177 * mode with read/write access.
178 */
179 uint32_t
180 smb_common_create(smb_request_t *sr)
181 {
182 struct open_param *op = &sr->arg.open;
183 uint32_t status;
184
185 if ((op->mtime.tv_sec != 0) && (op->mtime.tv_sec != UINT_MAX))
186 op->mtime.tv_sec = smb_time_local_to_gmt(sr, op->mtime.tv_sec);
187 op->mtime.tv_nsec = 0;
188 op->dsize = 0;
189 op->omode = SMB_DA_ACCESS_READ_WRITE | SMB_DA_SHARE_COMPATIBILITY;
190 op->desired_access = smb_omode_to_amask(op->omode);
191 op->share_access = smb_denymode_to_sharemode(op->omode,
192 op->fqi.fq_path.pn_path);
193
194 if (sr->smb_flg & SMB_FLAGS_OPLOCK) {
195 if (sr->smb_flg & SMB_FLAGS_OPLOCK_NOTIFY_ANY)
196 op->op_oplock_level = SMB_OPLOCK_BATCH;
197 else
198 op->op_oplock_level = SMB_OPLOCK_EXCLUSIVE;
199 } else {
200 op->op_oplock_level = SMB_OPLOCK_NONE;
201 }
202 op->op_oplock_levelII = B_FALSE;
203
204 status = smb_common_open(sr);
205
206 if (op->op_oplock_level == SMB_OPLOCK_NONE) {
207 sr->smb_flg &=
208 ~(SMB_FLAGS_OPLOCK | SMB_FLAGS_OPLOCK_NOTIFY_ANY);
209 }
210
211 if (status)
212 smbsr_status(sr, status, 0, 0);
213
214 return (status);
215 }