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/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 int smb_maxbufsize = SMB_NT_MAXBUF;
54 int smb_flush_required = 1;
55 int smb_dirsymlink_enable = 1;
56 int smb_sign_debug = 0;
57 int smb_shortnames = 1;
58 uint_t smb_audit_flags =
59 #ifdef DEBUG
60 SMB_AUDIT_NODE;
61 #else
62 0;
63 #endif
64
65 /*
66 * We don't normally have nbmand support in the test share
67 * used by fksmbd, but we'd still like the locking code
68 * to be testable. Intereactions with NFS etc. are not a
69 * concern in fksmbd, so allow it to use advisory locks.
70 *
71 * Should fix the fksmbd test share so it supports nbmand,
72 * and then set this to zero like the real server.
73 */
74 int smb_allow_advisory_locks = 1; /* See smb_vops.c */
75
76 /*
77 * Maximum number of simultaneous authentication, share mapping, pipe open
78 * requests to be processed.
79 */
80 int smb_ssetup_threshold = 256;
81 int smb_tcon_threshold = 1024;
82 int smb_opipe_threshold = 1024;
83
84 /*
85 * Number of milliseconds that a request will be stalled if it comes in after
86 * the maximum number of inflight operations are being proccessed.
87 */
88 int smb_ssetup_timeout = (30 * 1000);
89 int smb_tcon_timeout = (30 * 1000);
90 int smb_opipe_timeout = (30 * 1000);
91
92 int smb_threshold_debug = 0;
93
94 /*
95 * Thread priorities used in smbsrv. Our threads spend most of their time
96 * blocked on various conditions. However, if the system gets heavy load,
97 * the scheduler has to choose an order to run these. We want the order:
98 * (a) timers, (b) notifications, (c) workers, (d) receivers (and etc.)
99 * where notifications are oplock and change notify work. Aside from this
100 * relative ordering, smbsrv threads should run with a priority close to
101 * that of normal user-space threads (thus minclsyspri below), just like
102 * NFS and other "file service" kinds of processing.
103 */
104 int smbsrv_base_pri = MINCLSYSPRI;
105 int smbsrv_listen_pri = MINCLSYSPRI;
106 int smbsrv_receive_pri = MINCLSYSPRI;
107 int smbsrv_worker_pri = MINCLSYSPRI + 1;
108 int smbsrv_notify_pri = MINCLSYSPRI + 2;
109 int smbsrv_timer_pri = MINCLSYSPRI + 5;
110
111 /*
112 * These are the (open,close,ioctl) entry points into this
113 * (fake) "driver". They are declared in smb_ioctl.h
114 */
115
116 static int g_init_done = 0;
117
118 int fksmbsrv_vfs_init(void);
119
120 int
121 fksmbsrv_drv_open(void)
122 {
123 int rc;
124
125 if (g_init_done == 0) {
126 if ((rc = fksmbsrv_vfs_init()) != 0) {
127 cmn_err(CE_WARN, "fksmbsrv_vfs_init, rc=%d", rc);
128 return (rc);
129 }
130 if ((rc = smb_server_g_init()) != 0) {
131 cmn_err(CE_WARN, "smb_server_g_init, rc=%d", rc);
132 return (rc);
133 }
134 g_init_done = 1;
135 }
136
137 rc = smb_server_create();
138 return (rc);
139 }
140
141 int
142 fksmbsrv_drv_close(void)
143 {
144 smb_server_t *sv;
145 int rc;
146
147 rc = smb_server_lookup(&sv);
148 if (rc == 0)
149 rc = smb_server_delete(sv);
150
151 if (g_init_done != 0) {
152 smb_server_g_fini();
153 g_init_done = 0;
154 }
155
156 return (rc);
157 }
158
159 /*
160 * This is the primary entry point into this library, called by
161 * fksmbd (user-level debug version of smbsrv).
162 */
163 int
164 fksmbsrv_drv_ioctl(int cmd, void *varg)
165 {
166 smb_ioc_t *ioc = varg;
167 int rc = 0;
168
169 switch (cmd) {
170 case SMB_IOC_CONFIG:
171 rc = smb_server_configure(&ioc->ioc_cfg);
172 break;
173 case SMB_IOC_START:
174 rc = smb_server_start(&ioc->ioc_start);
175 break;
176 case SMB_IOC_STOP:
177 rc = smb_server_stop();
178 break;
179 case SMB_IOC_EVENT:
180 rc = smb_server_notify_event(&ioc->ioc_event);
181 break;
182 case SMB_IOC_GMTOFF:
183 rc = smb_server_set_gmtoff(&ioc->ioc_gmt);
184 break;
185 case SMB_IOC_SHARE:
186 rc = smb_kshare_export_list(&ioc->ioc_share);
187 break;
188 case SMB_IOC_UNSHARE:
189 rc = smb_kshare_unexport_list(&ioc->ioc_share);
190 break;
191 case SMB_IOC_SHAREINFO:
192 rc = smb_kshare_info(&ioc->ioc_shareinfo);
193 break;
194 case SMB_IOC_NUMOPEN:
195 rc = smb_server_numopen(&ioc->ioc_opennum);
196 break;
197 case SMB_IOC_SVCENUM:
198 rc = smb_server_enum(&ioc->ioc_svcenum);
199 break;
200 case SMB_IOC_SESSION_CLOSE:
201 rc = smb_server_session_close(&ioc->ioc_session);
202 break;
203 case SMB_IOC_FILE_CLOSE:
204 rc = smb_server_file_close(&ioc->ioc_fileid);
205 break;
206 case SMB_IOC_SPOOLDOC:
207 rc = smb_server_spooldoc(&ioc->ioc_spooldoc);
208 break;
209 default:
210 rc = ENOTTY;
211 break;
212 }
213
214 return (rc);
215 }
216
217 /*
218 * This function intentionally does nothing. It's used only to
219 * force libfksmbsrv to load when fksmbd starts so one can set
220 * breakpoints etc. without debugger "force load" tricks.
221 */
222 void
223 fksmbsrv_drv_load(void)
224 {
225 }