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_1(op__Create__start, smb_request_t *, sr); /* arg.open */
51
52 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
53 }
54
55 void
56 smb_post_create(smb_request_t *sr)
57 {
58 DTRACE_SMB_1(op__Create__done, smb_request_t *, sr);
59 }
60
61 smb_sdrc_t
62 smb_com_create(smb_request_t *sr)
63 {
64 if (smb_common_create(sr) != NT_STATUS_SUCCESS)
65 return (SDRC_ERROR);
66
67 if (smbsr_encode_result(sr, 1, 0, "bww", 1, sr->smb_fid, 0))
68 return (SDRC_ERROR);
69
70 return (SDRC_SUCCESS);
71 }
72
73 /*
74 * Create a new file and return a fid. The file is specified using
75 * a fully qualified name relative to the tree.
76 */
77 smb_sdrc_t
78 smb_pre_create_new(smb_request_t *sr)
79 {
80 struct open_param *op = &sr->arg.open;
81 int rc;
82
83 bzero(op, sizeof (sr->arg.open));
84
85 rc = smbsr_decode_vwv(sr, "wl", &op->dattr, &op->mtime.tv_sec);
86 if (rc == 0)
87 rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
88
89 op->create_disposition = FILE_CREATE;
90
91 DTRACE_SMB_1(op__CreateNew__start, smb_request_t *, sr); /* arg.open */
92
93 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
94 }
95
96 void
97 smb_post_create_new(smb_request_t *sr)
98 {
99 DTRACE_SMB_1(op__CreateNew__done, smb_request_t *, sr);
100 }
101
102 smb_sdrc_t
103 smb_com_create_new(smb_request_t *sr)
104 {
105 if (smb_common_create(sr) != NT_STATUS_SUCCESS)
106 return (SDRC_ERROR);
107
108 if (smbsr_encode_result(sr, 1, 0, "bww", 1, sr->smb_fid, 0))
109 return (SDRC_ERROR);
110
111 return (SDRC_SUCCESS);
112 }
113
114 /*
115 * Create a unique file in the specified directory relative to the
116 * current tree. No attributes are specified.
117 */
118 smb_sdrc_t
119 smb_pre_create_temporary(smb_request_t *sr)
120 {
121 struct open_param *op = &sr->arg.open;
122 uint16_t reserved;
123 int rc;
124
125 bzero(op, sizeof (sr->arg.open));
126
127 rc = smbsr_decode_vwv(sr, "wl", &reserved, &op->mtime.tv_sec);
128 if (rc == 0)
129 rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
130
131 op->create_disposition = FILE_CREATE;
132
133 DTRACE_SMB_1(op__CreateTemporary__start, smb_request_t *, sr); /* arg.open */
134
135 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
136 }
137
138 void
139 smb_post_create_temporary(smb_request_t *sr)
140 {
141 DTRACE_SMB_1(op__CreateTemporary__done, smb_request_t *, sr);
142 }
143
144 smb_sdrc_t
145 smb_com_create_temporary(smb_request_t *sr)
146 {
147 static uint16_t tmp_id = 10000;
148 struct open_param *op = &sr->arg.open;
149 char name[SMB_CREATE_NAMEBUF_SZ];
150 char *buf;
151 uint16_t bcc;
152
153 ++tmp_id;
154 bcc = 1; /* null terminator */
155 bcc += snprintf(name, SMB_CREATE_NAMEBUF_SZ, "tt%05d.tmp", tmp_id);
156
157 buf = smb_srm_zalloc(sr, MAXPATHLEN);
158 (void) snprintf(buf, MAXPATHLEN, "%s\\%s",
159 op->fqi.fq_path.pn_path, name);
160 op->fqi.fq_path.pn_path = buf;
161
162 if (smb_common_create(sr) != NT_STATUS_SUCCESS)
163 return (SDRC_ERROR);
164
165 if (smbsr_encode_result(sr, 1, VAR_BCC, "bww%s", 1, sr->smb_fid,
166 VAR_BCC, sr, name))
167 return (SDRC_ERROR);
168
169 return (SDRC_SUCCESS);
170 }
171
172 /*
173 * Common create file function. The file is opened in compatibility
174 * mode with read/write access.
175 */
176 uint32_t
177 smb_common_create(smb_request_t *sr)
178 {
179 struct open_param *op = &sr->arg.open;
180 uint32_t status;
181
182 if ((op->mtime.tv_sec != 0) && (op->mtime.tv_sec != UINT_MAX))
183 op->mtime.tv_sec = smb_time_local_to_gmt(sr, op->mtime.tv_sec);
184 op->mtime.tv_nsec = 0;
185 op->dsize = 0;
186 op->omode = SMB_DA_ACCESS_READ_WRITE | SMB_DA_SHARE_COMPATIBILITY;
187 op->desired_access = smb_omode_to_amask(op->omode);
188 op->share_access = smb_denymode_to_sharemode(op->omode,
189 op->fqi.fq_path.pn_path);
190
191 if (sr->smb_flg & SMB_FLAGS_OPLOCK) {
192 if (sr->smb_flg & SMB_FLAGS_OPLOCK_NOTIFY_ANY)
193 op->op_oplock_level = SMB_OPLOCK_BATCH;
194 else
195 op->op_oplock_level = SMB_OPLOCK_EXCLUSIVE;
196 } else {
197 op->op_oplock_level = SMB_OPLOCK_NONE;
198 }
199 op->op_oplock_levelII = B_FALSE;
200
201 status = smb_common_open(sr);
202
203 if (op->op_oplock_level == SMB_OPLOCK_NONE) {
204 sr->smb_flg &=
205 ~(SMB_FLAGS_OPLOCK | SMB_FLAGS_OPLOCK_NOTIFY_ANY);
206 }
207
208 if (status)
209 smbsr_status(sr, status, 0, 0);
210
211 return (status);
212 }