fksmb_init.c revision a90cf9f29973990687fa61de9f1f6ea22e924e40
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 */
55int	smb_maxbufsize = SMB_NT_MAXBUF;
56int	smb_oplock_levelII = 1;
57int	smb_oplock_timeout = OPLOCK_STD_TIMEOUT;
58int	smb_oplock_min_timeout = OPLOCK_MIN_TIMEOUT;
59int	smb_flush_required = 1;
60int	smb_dirsymlink_enable = 1;
61int	smb_sign_debug = 0;
62int	smb_raw_mode = 0;
63int	smb_shortnames = 1;
64uint_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 */
75int	smb_ssetup_threshold = 256;
76int	smb_tcon_threshold = 1024;
77int	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 */
83int	smb_ssetup_timeout = (30 * 1000);
84int	smb_tcon_timeout = (30 * 1000);
85int	smb_opipe_timeout = (30 * 1000);
86
87int	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 */
99int smbsrv_base_pri	= MINCLSYSPRI;
100int smbsrv_listen_pri	= MINCLSYSPRI;
101int smbsrv_receive_pri	= MINCLSYSPRI;
102int smbsrv_worker_pri	= MINCLSYSPRI + 1;
103int smbsrv_notify_pri	= MINCLSYSPRI + 2;
104int 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
111static int g_init_done = 0;
112
113int fksmbsrv_vfs_init(void);
114
115int
116fksmbsrv_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
136int
137fksmbsrv_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 */
155int
156fksmbsrv_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 */
214void
215fksmbsrv_drv_load(void)
216{
217}
218