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 2013 Nexenta Systems, Inc. All rights reserved.
24 */
25
26 #include <sys/types.h>
27 #include <sys/ddi.h>
28 #include <sys/modctl.h>
29 #include <sys/cred.h>
30 #include <sys/disp.h>
31 #include <sys/ioccom.h>
32 #include <sys/policy.h>
33 #include <sys/cmn_err.h>
34 #include <smbsrv/smb_kproto.h>
35 #include <smbsrv/smb_ioctl.h>
36
37 /*
38 * *****************************************************************************
39 * ****************************** Global Variables *****************************
40 * *****************************************************************************
41 *
42 * These variables can only be changed through the /etc/system file.
43 */
44
45 /*
46 * Maximum buffer size for NT: configurable based on the client environment.
47 * IR104720 Experiments with Windows 2000 indicate that we achieve better
48 * SmbWriteX performance with a buffer size of 64KB instead of the 37KB used
49 * with Windows NT4.0. Previous experiments with NT4.0 resulted in directory
50 * listing problems so this buffer size is configurable based on the end-user
51 * environment. When in doubt use 37KB.
52 *
53 * smb_raw_mode: read_raw and write_raw supported (1) or NOT supported (0).
54 */
55 int smb_maxbufsize = SMB_NT_MAXBUF;
56 int smb_oplock_levelII = 1;
57 int smb_oplock_timeout = OPLOCK_STD_TIMEOUT;
58 int smb_oplock_min_timeout = OPLOCK_MIN_TIMEOUT;
59 int smb_flush_required = 1;
60 int smb_dirsymlink_enable = 1;
61 int smb_sign_debug = 0;
62 int smb_raw_mode = 0;
63 int smb_shortnames = 1;
64 uint_t smb_audit_flags =
65 #ifdef DEBUG
66 SMB_AUDIT_NODE;
67 #else
68 0;
69 #endif
70
71 /*
72 * Maximum number of simultaneous authentication, share mapping, pipe open
73 * requests to be processed.
74 */
75 int smb_ssetup_threshold = 256;
76 int smb_tcon_threshold = 1024;
77 int smb_opipe_threshold = 1024;
78
79 /*
80 * Number of milliseconds that a request will be stalled if it comes in after
81 * the maximum number of inflight operations are being proccessed.
82 */
83 int smb_ssetup_timeout = (30 * 1000);
84 int smb_tcon_timeout = (30 * 1000);
85 int smb_opipe_timeout = (30 * 1000);
86
87 int smb_threshold_debug = 0;
88
89 /*
90 * Thread priorities used in smbsrv. Our threads spend most of their time
91 * blocked on various conditions. However, if the system gets heavy load,
92 * the scheduler has to choose an order to run these. We want the order:
93 * (a) timers, (b) notifications, (c) workers, (d) receivers (and etc.)
94 * where notifications are oplock and change notify work. Aside from this
95 * relative ordering, smbsrv threads should run with a priority close to
96 * that of normal user-space threads (thus minclsyspri below), just like
97 * NFS and other "file service" kinds of processing.
98 */
99 int smbsrv_base_pri = MINCLSYSPRI;
100 int smbsrv_listen_pri = MINCLSYSPRI;
101 int smbsrv_receive_pri = MINCLSYSPRI;
102 int smbsrv_worker_pri = MINCLSYSPRI + 1;
103 int smbsrv_notify_pri = MINCLSYSPRI + 2;
104 int smbsrv_timer_pri = MINCLSYSPRI + 5;
105
106 /*
107 * These are the (open,close,ioctl) entry points into this
108 * (fake) "driver". They are declared in smb_ioctl.h
109 */
110
111 static int g_init_done = 0;
112
113 int fksmbsrv_vfs_init(void);
114
115 int
116 fksmbsrv_drv_open(void)
117 {
118 int rc;
119
120 if (g_init_done == 0) {
121 if ((rc = fksmbsrv_vfs_init()) != 0) {
122 cmn_err(CE_WARN, "fksmbsrv_vfs_init, rc=%d", rc);
123 return (rc);
124 }
125 if ((rc = smb_server_g_init()) != 0) {
126 cmn_err(CE_WARN, "smb_server_g_init, rc=%d", rc);
127 return (rc);
128 }
129 g_init_done = 1;
130 }
131
132 rc = smb_server_create();
133 return (rc);
134 }
135
136 int
137 fksmbsrv_drv_close(void)
138 {
139 int rc;
140
141 rc = smb_server_delete();
142
143 if (g_init_done != 0) {
144 smb_server_g_fini();
145 g_init_done = 0;
146 }
147
148 return (rc);
149 }
150
151 /*
152 * This is the primary entry point into this library, called by
153 * fksmbd (user-level debug version of smbsrv).
154 */
155 int
156 fksmbsrv_drv_ioctl(int cmd, void *varg)
157 {
158 smb_ioc_t *ioc = varg;
159 int rc = 0;
160
161 switch (cmd) {
162 case SMB_IOC_CONFIG:
163 rc = smb_server_configure(&ioc->ioc_cfg);
164 break;
165 case SMB_IOC_START:
166 rc = smb_server_start(&ioc->ioc_start);
167 break;
168 case SMB_IOC_STOP:
169 rc = smb_server_stop();
170 break;
171 case SMB_IOC_EVENT:
172 rc = smb_server_notify_event(&ioc->ioc_event);
173 break;
174 case SMB_IOC_GMTOFF:
175 rc = smb_server_set_gmtoff(&ioc->ioc_gmt);
176 break;
177 case SMB_IOC_SHARE:
178 rc = smb_kshare_export_list(&ioc->ioc_share);
179 break;
180 case SMB_IOC_UNSHARE:
181 rc = smb_kshare_unexport_list(&ioc->ioc_share);
182 break;
183 case SMB_IOC_SHAREINFO:
184 rc = smb_kshare_info(&ioc->ioc_shareinfo);
185 break;
186 case SMB_IOC_NUMOPEN:
187 rc = smb_server_numopen(&ioc->ioc_opennum);
188 break;
189 case SMB_IOC_SVCENUM:
190 rc = smb_server_enum(&ioc->ioc_svcenum);
191 break;
192 case SMB_IOC_SESSION_CLOSE:
193 rc = smb_server_session_close(&ioc->ioc_session);
194 break;
195 case SMB_IOC_FILE_CLOSE:
196 rc = smb_server_file_close(&ioc->ioc_fileid);
197 break;
198 case SMB_IOC_SPOOLDOC:
199 rc = smb_server_spooldoc(&ioc->ioc_spooldoc);
200 break;
201 default:
202 rc = ENOTTY;
203 break;
204 }
205
206 return (rc);
207 }
208
209 /*
210 * This function intentionally does nothing. It's used only to
211 * force libfksmbsrv to load when fksmbd starts so one can set
212 * breakpoints etc. without debugger "force load" tricks.
213 */
214 void
215 fksmbsrv_drv_load(void)
216 {
217 }