fksmb_init.c revision 8d94f651a44d41a7147253bb5dad1a53941e8f50
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 */
53int	smb_maxbufsize = SMB_NT_MAXBUF;
54int	smb_flush_required = 1;
55int	smb_dirsymlink_enable = 1;
56int	smb_sign_debug = 0;
57int	smb_shortnames = 1;
58uint_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 */
74int 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 */
80int	smb_ssetup_threshold = 256;
81int	smb_tcon_threshold = 1024;
82int	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 */
88int	smb_ssetup_timeout = (30 * 1000);
89int	smb_tcon_timeout = (30 * 1000);
90int	smb_opipe_timeout = (30 * 1000);
91
92int	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 */
104int smbsrv_base_pri	= MINCLSYSPRI;
105int smbsrv_listen_pri	= MINCLSYSPRI;
106int smbsrv_receive_pri	= MINCLSYSPRI;
107int smbsrv_worker_pri	= MINCLSYSPRI + 1;
108int smbsrv_notify_pri	= MINCLSYSPRI + 2;
109int 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
116static int g_init_done = 0;
117
118int fksmbsrv_vfs_init(void);
119
120int
121fksmbsrv_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
141int
142fksmbsrv_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 */
163int
164fksmbsrv_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 */
222void
223fksmbsrv_drv_load(void)
224{
225}
226