4 #include <linux/types.h>
6 /* All of the structures in this file may not change size as they are
7 * passed into the kernel from userspace via netlink sockets.
10 /* Structure to encapsulate addresses. I do not want to use
11 * "standard" structure. My apologies.
19 /* Ident of a specific xfrm_state. It is used on input to lookup
20 * the state by (spi,daddr,ah/esp) or to store information about
21 * spi, protocol and tunnel address on output.
30 /* Selector, used as selector both on policy rules (SPD) and SAs. */
48 #define XFRM_INF (~(__u64)0)
50 struct xfrm_lifetime_cfg
52 __u64 soft_byte_limit;
53 __u64 hard_byte_limit;
54 __u64 soft_packet_limit;
55 __u64 hard_packet_limit;
56 __u64 soft_add_expires_seconds;
57 __u64 hard_add_expires_seconds;
58 __u64 soft_use_expires_seconds;
59 __u64 hard_use_expires_seconds;
62 struct xfrm_lifetime_cur
70 struct xfrm_replay_state
79 int alg_key_len; /* in bits */
86 __u32 integrity_failed;
99 XFRM_SHARE_ANY, /* No limitations */
100 XFRM_SHARE_SESSION, /* For this session only */
101 XFRM_SHARE_USER, /* For this user only */
102 XFRM_SHARE_UNIQUE /* Use once */
105 /* Netlink configuration messages. */
106 #define XFRM_MSG_BASE 0x10
108 #define XFRM_MSG_NEWSA (XFRM_MSG_BASE + 0)
109 #define XFRM_MSG_DELSA (XFRM_MSG_BASE + 1)
110 #define XFRM_MSG_GETSA (XFRM_MSG_BASE + 2)
112 #define XFRM_MSG_NEWPOLICY (XFRM_MSG_BASE + 3)
113 #define XFRM_MSG_DELPOLICY (XFRM_MSG_BASE + 4)
114 #define XFRM_MSG_GETPOLICY (XFRM_MSG_BASE + 5)
116 #define XFRM_MSG_ALLOCSPI (XFRM_MSG_BASE + 6)
117 #define XFRM_MSG_ACQUIRE (XFRM_MSG_BASE + 7)
118 #define XFRM_MSG_EXPIRE (XFRM_MSG_BASE + 8)
120 #define XFRM_MSG_UPDPOLICY (XFRM_MSG_BASE + 9)
121 #define XFRM_MSG_UPDSA (XFRM_MSG_BASE + 10)
123 #define XFRM_MSG_POLEXPIRE (XFRM_MSG_BASE + 11)
125 #define XFRM_MSG_MAX (XFRM_MSG_POLEXPIRE+1)
127 struct xfrm_user_tmpl {
130 xfrm_address_t saddr;
140 struct xfrm_encap_tmpl {
144 xfrm_address_t encap_oa;
147 /* Netlink message attributes. */
148 enum xfrm_attr_type_t {
150 XFRMA_ALG_AUTH, /* struct xfrm_algo */
151 XFRMA_ALG_CRYPT, /* struct xfrm_algo */
152 XFRMA_ALG_COMP, /* struct xfrm_algo */
153 XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */
154 XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */
156 #define XFRMA_MAX XFRMA_TMPL
159 struct xfrm_usersa_info {
160 struct xfrm_selector sel;
162 xfrm_address_t saddr;
163 struct xfrm_lifetime_cfg lft;
164 struct xfrm_lifetime_cur curlft;
165 struct xfrm_stats stats;
169 __u8 mode; /* 0=transport,1=tunnel */
172 #define XFRM_STATE_NOECN 1
175 struct xfrm_usersa_id {
176 xfrm_address_t daddr;
182 struct xfrm_userspi_info {
183 struct xfrm_usersa_info info;
188 struct xfrm_userpolicy_info {
189 struct xfrm_selector sel;
190 struct xfrm_lifetime_cfg lft;
191 struct xfrm_lifetime_cur curlft;
196 #define XFRM_POLICY_ALLOW 0
197 #define XFRM_POLICY_BLOCK 1
199 #define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
203 struct xfrm_userpolicy_id {
204 struct xfrm_selector sel;
209 struct xfrm_user_acquire {
211 xfrm_address_t saddr;
212 struct xfrm_selector sel;
213 struct xfrm_userpolicy_info policy;
220 struct xfrm_user_expire {
221 struct xfrm_usersa_info state;
225 struct xfrm_user_polexpire {
226 struct xfrm_userpolicy_info pol;
230 #define XFRMGRP_ACQUIRE 1
231 #define XFRMGRP_EXPIRE 2
233 #endif /* _LINUX_XFRM_H */