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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/*
* NetLabel Network Address Lists
*
* This file contains network address list functions used to manage ordered
* lists of network addresses for use by the NetLabel subsystem. The NetLabel
* system manages static and dynamic label mappings for network protocols such
* as CIPSO and RIPSO.
*
* Author: Paul Moore <paul.moore@hp.com>
*
*/
/*
* (c) Copyright Hewlett-Packard Development Company, L.P., 2008
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _NETLABEL_ADDRLIST_H
#define _NETLABEL_ADDRLIST_H
#include <linux/types.h>
#include <linux/rcupdate.h>
#include <linux/list.h>
#include <linux/in6.h>
#include <linux/audit.h>
/**
* struct netlbl_af4list - NetLabel IPv4 address list
* @addr: IPv4 address
* @mask: IPv4 address mask
* @valid: valid flag
* @list: list structure, used internally
*/
struct netlbl_af4list {
__be32 addr;
__be32 mask;
u32 valid;
struct list_head list;
};
/**
* struct netlbl_af6list - NetLabel IPv6 address list
* @addr: IPv6 address
* @mask: IPv6 address mask
* @valid: valid flag
* @list: list structure, used internally
*/
struct netlbl_af6list {
struct in6_addr addr;
struct in6_addr mask;
u32 valid;
struct list_head list;
};
#define __af4list_entry(ptr) container_of(ptr, struct netlbl_af4list, list)
static inline struct netlbl_af4list *__af4list_valid(struct list_head *s,
struct list_head *h)
{
struct list_head *i = s;
struct netlbl_af4list *n = __af4list_entry(s);
while (i != h && !n->valid) {
i = i->next;
n = __af4list_entry(i);
}
return n;
}
static inline struct netlbl_af4list *__af4list_valid_rcu(struct list_head *s,
struct list_head *h)
{
struct list_head *i = s;
struct netlbl_af4list *n = __af4list_entry(s);
while (i != h && !n->valid) {
i = rcu_dereference(i->next);
n = __af4list_entry(i);
}
return n;
}
#define netlbl_af4list_foreach(iter, head) \
for (iter = __af4list_valid((head)->next, head); \
prefetch(iter->list.next), &iter->list != (head); \
iter = __af4list_valid(iter->list.next, head))
#define netlbl_af4list_foreach_rcu(iter, head) \
for (iter = __af4list_valid_rcu((head)->next, head); \
prefetch(iter->list.next), &iter->list != (head); \
iter = __af4list_valid_rcu(iter->list.next, head))
#define netlbl_af4list_foreach_safe(iter, tmp, head) \
for (iter = __af4list_valid((head)->next, head), \
tmp = __af4list_valid(iter->list.next, head); \
&iter->list != (head); \
iter = tmp, tmp = __af4list_valid(iter->list.next, head))
int netlbl_af4list_add(struct netlbl_af4list *entry,
struct list_head *head);
struct netlbl_af4list *netlbl_af4list_remove(__be32 addr, __be32 mask,
struct list_head *head);
void netlbl_af4list_remove_entry(struct netlbl_af4list *entry);
struct netlbl_af4list *netlbl_af4list_search(__be32 addr,
struct list_head *head);
struct netlbl_af4list *netlbl_af4list_search_exact(__be32 addr,
__be32 mask,
struct list_head *head);
#ifdef CONFIG_AUDIT
void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
int src, const char *dev,
__be32 addr, __be32 mask);
#else
static inline void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
int src, const char *dev,
__be32 addr, __be32 mask)
{
return;
}
#endif
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
#define __af6list_entry(ptr) container_of(ptr, struct netlbl_af6list, list)
static inline struct netlbl_af6list *__af6list_valid(struct list_head *s,
struct list_head *h)
{
struct list_head *i = s;
struct netlbl_af6list *n = __af6list_entry(s);
while (i != h && !n->valid) {
i = i->next;
n = __af6list_entry(i);
}
return n;
}
static inline struct netlbl_af6list *__af6list_valid_rcu(struct list_head *s,
struct list_head *h)
{
struct list_head *i = s;
struct netlbl_af6list *n = __af6list_entry(s);
while (i != h && !n->valid) {
i = rcu_dereference(i->next);
n = __af6list_entry(i);
}
return n;
}
#define netlbl_af6list_foreach(iter, head) \
for (iter = __af6list_valid((head)->next, head); \
prefetch(iter->list.next), &iter->list != (head); \
iter = __af6list_valid(iter->list.next, head))
#define netlbl_af6list_foreach_rcu(iter, head) \
for (iter = __af6list_valid_rcu((head)->next, head); \
prefetch(iter->list.next), &iter->list != (head); \
iter = __af6list_valid_rcu(iter->list.next, head))
#define netlbl_af6list_foreach_safe(iter, tmp, head) \
for (iter = __af6list_valid((head)->next, head), \
tmp = __af6list_valid(iter->list.next, head); \
&iter->list != (head); \
iter = tmp, tmp = __af6list_valid(iter->list.next, head))
int netlbl_af6list_add(struct netlbl_af6list *entry,
struct list_head *head);
struct netlbl_af6list *netlbl_af6list_remove(const struct in6_addr *addr,
const struct in6_addr *mask,
struct list_head *head);
void netlbl_af6list_remove_entry(struct netlbl_af6list *entry);
struct netlbl_af6list *netlbl_af6list_search(const struct in6_addr *addr,
struct list_head *head);
struct netlbl_af6list *netlbl_af6list_search_exact(const struct in6_addr *addr,
const struct in6_addr *mask,
struct list_head *head);
#ifdef CONFIG_AUDIT
void netlbl_af6list_audit_addr(struct audit_buffer *audit_buf,
int src,
const char *dev,
const struct in6_addr *addr,
const struct in6_addr *mask);
#else
static inline void netlbl_af6list_audit_addr(struct audit_buffer *audit_buf,
int src,
const char *dev,
const struct in6_addr *addr,
const struct in6_addr *mask)
{
return;
}
#endif
#endif /* IPV6 */
#endif
|
