6 * Copyright (C) 2007 by Latchesar Ionkov <lucho@ionkov.net>
7 * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
8 * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2
12 * as published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to:
21 * Free Software Foundation
22 * 51 Franklin Street, Fifth Floor
23 * Boston, MA 02111-1301 USA
27 #include <linux/module.h>
28 #include <linux/moduleparam.h>
29 #include <net/9p/9p.h>
31 #include <linux/parser.h>
32 #include <net/9p/transport.h>
33 #include <linux/list.h>
35 #ifdef CONFIG_NET_9P_DEBUG
36 unsigned int p9_debug_level = 0; /* feature-rific global debug level */
37 EXPORT_SYMBOL(p9_debug_level);
38 module_param_named(debug, p9_debug_level, uint, 0);
39 MODULE_PARM_DESC(debug, "9P debugging level");
42 extern int p9_mux_global_init(void);
43 extern void p9_mux_global_exit(void);
44 extern int p9_sysctl_register(void);
45 extern void p9_sysctl_unregister(void);
48 * Dynamic Transport Registration Routines
52 static LIST_HEAD(v9fs_trans_list);
53 static struct p9_trans_module *v9fs_default_transport;
56 * v9fs_register_trans - register a new transport with 9p
57 * @m - structure describing the transport module and entry points
60 void v9fs_register_trans(struct p9_trans_module *m)
62 list_add_tail(&m->list, &v9fs_trans_list);
64 v9fs_default_transport = m;
66 EXPORT_SYMBOL(v9fs_register_trans);
69 * v9fs_match_trans - match transport versus registered transports
70 * @arg: string identifying transport
73 struct p9_trans_module *v9fs_match_trans(const substring_t *name)
76 struct p9_trans_module *t = NULL;
78 list_for_each(p, &v9fs_trans_list) {
79 t = list_entry(p, struct p9_trans_module, list);
80 if (strncmp(t->name, name->from, name->to-name->from) == 0)
85 EXPORT_SYMBOL(v9fs_match_trans);
88 * v9fs_default_trans - returns pointer to default transport
92 struct p9_trans_module *v9fs_default_trans(void)
94 if (v9fs_default_transport)
95 return v9fs_default_transport;
96 else if (!list_empty(&v9fs_trans_list))
97 return list_first_entry(&v9fs_trans_list,
98 struct p9_trans_module, list);
102 EXPORT_SYMBOL(v9fs_default_trans);
106 * v9fs_init - Initialize module
109 static int __init init_p9(void)
114 printk(KERN_INFO "Installing 9P2000 support\n");
115 ret = p9_mux_global_init();
117 printk(KERN_WARNING "9p: starting mux failed\n");
121 ret = p9_sysctl_register();
123 printk(KERN_WARNING "9p: registering sysctl failed\n");
131 * v9fs_init - shutdown module
135 static void __exit exit_p9(void)
137 p9_sysctl_unregister();
138 p9_mux_global_exit();
144 MODULE_AUTHOR("Latchesar Ionkov <lucho@ionkov.net>");
145 MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
146 MODULE_AUTHOR("Ron Minnich <rminnich@lanl.gov>");
147 MODULE_LICENSE("GPL");