1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
* net/9p/9p.c
*
* 9P entry point
*
* Copyright (C) 2007 by Latchesar Ionkov <lucho@ionkov.net>
* Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
* Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to:
* Free Software Foundation
* 51 Franklin Street, Fifth Floor
* Boston, MA 02111-1301 USA
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <net/9p/9p.h>
#include <linux/fs.h>
#include <linux/parser.h>
#include <net/9p/transport.h>
#include <linux/list.h>
#ifdef CONFIG_NET_9P_DEBUG
unsigned int p9_debug_level = 0; /* feature-rific global debug level */
EXPORT_SYMBOL(p9_debug_level);
module_param_named(debug, p9_debug_level, uint, 0);
MODULE_PARM_DESC(debug, "9P debugging level");
#endif
/*
* Dynamic Transport Registration Routines
*
*/
static LIST_HEAD(v9fs_trans_list);
static struct p9_trans_module *v9fs_default_transport;
/**
* v9fs_register_trans - register a new transport with 9p
* @m: structure describing the transport module and entry points
*
*/
void v9fs_register_trans(struct p9_trans_module *m)
{
list_add_tail(&m->list, &v9fs_trans_list);
if (m->def)
v9fs_default_transport = m;
}
EXPORT_SYMBOL(v9fs_register_trans);
/**
* v9fs_match_trans - match transport versus registered transports
* @name: string identifying transport
*
*/
struct p9_trans_module *v9fs_match_trans(const substring_t *name)
{
struct list_head *p;
struct p9_trans_module *t = NULL;
list_for_each(p, &v9fs_trans_list) {
t = list_entry(p, struct p9_trans_module, list);
if (strncmp(t->name, name->from, name->to-name->from) == 0)
return t;
}
return NULL;
}
EXPORT_SYMBOL(v9fs_match_trans);
/**
* v9fs_default_trans - returns pointer to default transport
*
*/
struct p9_trans_module *v9fs_default_trans(void)
{
if (v9fs_default_transport)
return v9fs_default_transport;
else if (!list_empty(&v9fs_trans_list))
return list_first_entry(&v9fs_trans_list,
struct p9_trans_module, list);
else
return NULL;
}
EXPORT_SYMBOL(v9fs_default_trans);
/**
* v9fs_init - Initialize module
*
*/
static int __init init_p9(void)
{
int ret = 0;
p9_error_init();
printk(KERN_INFO "Installing 9P2000 support\n");
p9_trans_fd_init();
return ret;
}
/**
* v9fs_init - shutdown module
*
*/
static void __exit exit_p9(void)
{
printk(KERN_INFO "Unloading 9P2000 support\n");
}
module_init(init_p9)
module_exit(exit_p9)
MODULE_AUTHOR("Latchesar Ionkov <lucho@ionkov.net>");
MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
MODULE_AUTHOR("Ron Minnich <rminnich@lanl.gov>");
MODULE_LICENSE("GPL");
|
