cipso_ipv4.h (81d84a94be8085475c3585596e52b06ccbedd922) cipso_ipv4.h (b1edeb102397546438ab4624489c6ccd7b410d97)
1/*
2 * CIPSO - Commercial IP Security Option
3 *
4 * This is an implementation of the CIPSO 2.2 protocol as specified in
5 * draft-ietf-cipso-ipsecurity-01.txt with additional tag types as found in
6 * FIPS-188, copies of both documents can be found in the Documentation
7 * directory. While CIPSO never became a full IETF RFC standard many vendors
8 * have chosen to adopt the protocol and over the years it has become a

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35#define _CIPSO_IPV4_H
36
37#include <linux/types.h>
38#include <linux/rcupdate.h>
39#include <linux/list.h>
40#include <linux/net.h>
41#include <linux/skbuff.h>
42#include <net/netlabel.h>
1/*
2 * CIPSO - Commercial IP Security Option
3 *
4 * This is an implementation of the CIPSO 2.2 protocol as specified in
5 * draft-ietf-cipso-ipsecurity-01.txt with additional tag types as found in
6 * FIPS-188, copies of both documents can be found in the Documentation
7 * directory. While CIPSO never became a full IETF RFC standard many vendors
8 * have chosen to adopt the protocol and over the years it has become a

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35#define _CIPSO_IPV4_H
36
37#include <linux/types.h>
38#include <linux/rcupdate.h>
39#include <linux/list.h>
40#include <linux/net.h>
41#include <linux/skbuff.h>
42#include <net/netlabel.h>
43#include <asm/atomic.h>
43
44/* known doi values */
45#define CIPSO_V4_DOI_UNKNOWN 0x00000000
46
47/* tag types */
48#define CIPSO_V4_TAG_INVALID 0
49#define CIPSO_V4_TAG_RBITMAP 1
50#define CIPSO_V4_TAG_ENUM 2

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74struct cipso_v4_doi {
75 u32 doi;
76 u32 type;
77 union {
78 struct cipso_v4_std_map_tbl *std;
79 } map;
80 u8 tags[CIPSO_V4_TAG_MAXCNT];
81
44
45/* known doi values */
46#define CIPSO_V4_DOI_UNKNOWN 0x00000000
47
48/* tag types */
49#define CIPSO_V4_TAG_INVALID 0
50#define CIPSO_V4_TAG_RBITMAP 1
51#define CIPSO_V4_TAG_ENUM 2

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75struct cipso_v4_doi {
76 u32 doi;
77 u32 type;
78 union {
79 struct cipso_v4_std_map_tbl *std;
80 } map;
81 u8 tags[CIPSO_V4_TAG_MAXCNT];
82
82 u32 valid;
83 atomic_t refcount;
83 struct list_head list;
84 struct rcu_head rcu;
84 struct list_head list;
85 struct rcu_head rcu;
85 struct list_head dom_list;
86};
87
88/* Standard CIPSO mapping table */
89/* NOTE: the highest order bit (i.e. 0x80000000) is an 'invalid' flag, if the
90 * bit is set then consider that value as unspecified, meaning the
91 * mapping for that particular level/category is invalid */
92struct cipso_v4_std_map_tbl {
93 struct {

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123#define CIPSO_V4_OPTPTR(x) (skb_network_header(x) + IPCB(x)->opt.cipso)
124
125/*
126 * DOI List Functions
127 */
128
129#ifdef CONFIG_NETLABEL
130int cipso_v4_doi_add(struct cipso_v4_doi *doi_def);
86};
87
88/* Standard CIPSO mapping table */
89/* NOTE: the highest order bit (i.e. 0x80000000) is an 'invalid' flag, if the
90 * bit is set then consider that value as unspecified, meaning the
91 * mapping for that particular level/category is invalid */
92struct cipso_v4_std_map_tbl {
93 struct {

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123#define CIPSO_V4_OPTPTR(x) (skb_network_header(x) + IPCB(x)->opt.cipso)
124
125/*
126 * DOI List Functions
127 */
128
129#ifdef CONFIG_NETLABEL
130int cipso_v4_doi_add(struct cipso_v4_doi *doi_def);
131int cipso_v4_doi_remove(u32 doi,
132 struct netlbl_audit *audit_info,
133 void (*callback) (struct rcu_head * head));
131void cipso_v4_doi_free(struct cipso_v4_doi *doi_def);
132int cipso_v4_doi_remove(u32 doi, struct netlbl_audit *audit_info);
134struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi);
133struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi);
134void cipso_v4_doi_putdef(struct cipso_v4_doi *doi_def);
135int cipso_v4_doi_walk(u32 *skip_cnt,
136 int (*callback) (struct cipso_v4_doi *doi_def, void *arg),
137 void *cb_arg);
135int cipso_v4_doi_walk(u32 *skip_cnt,
136 int (*callback) (struct cipso_v4_doi *doi_def, void *arg),
137 void *cb_arg);
138int cipso_v4_doi_domhsh_add(struct cipso_v4_doi *doi_def, const char *domain);
139int cipso_v4_doi_domhsh_remove(struct cipso_v4_doi *doi_def,
140 const char *domain);
141#else
142static inline int cipso_v4_doi_add(struct cipso_v4_doi *doi_def)
143{
144 return -ENOSYS;
145}
146
138#else
139static inline int cipso_v4_doi_add(struct cipso_v4_doi *doi_def)
140{
141 return -ENOSYS;
142}
143
144static inline void cipso_v4_doi_free(struct cipso_v4_doi *doi_def)
145{
146 return;
147}
148
147static inline int cipso_v4_doi_remove(u32 doi,
149static inline int cipso_v4_doi_remove(u32 doi,
148 struct netlbl_audit *audit_info,
149 void (*callback) (struct rcu_head * head))
150 struct netlbl_audit *audit_info)
150{
151 return 0;
152}
153
154static inline struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi)
155{
156 return NULL;
157}

--- 89 unchanged lines hidden --- 		151{
152 return 0;
153}
154
155static inline struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi)
156{
157 return NULL;
158}

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