projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _LINUX_XFRM_H |
| 2 | #define _LINUX_XFRM_H | |
| 3 | ||
| 4 | #include <linux/types.h> | |
| 5 | ||
| 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. | |
| 8 | */ | |
| 9 | ||
| 10 | /* Structure to encapsulate addresses. I do not want to use | |
| 11 | * "standard" structure. My apologies. | |
| 12 | */ | |
| 13 | typedef union | |
| 14 | { | |
| 15 | __u32 a4; | |
| 16 | __u32 a6[4]; | |
| 17 | } xfrm_address_t; | |
| 18 | ||
| 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. | |
| 22 | */ | |
| 23 | struct xfrm_id | |
| 24 | { | |
| 25 | xfrm_address_t daddr; | |
| 26 | __u32 spi; | |
| 27 | __u8 proto; | |
| 28 | }; | |
| 29 | ||
| 30 | /* Selector, used as selector both on policy rules (SPD) and SAs. */ | |
| 31 | ||
| 32 | struct xfrm_selector | |
| 33 | { | |
| 34 | xfrm_address_t daddr; | |
| 35 | xfrm_address_t saddr; | |
| 36 | __u16 dport; | |
| 37 | __u16 dport_mask; | |
| 38 | __u16 sport; | |
| 39 | __u16 sport_mask; | |
| 40 | __u16 family; | |
| 41 | __u8 prefixlen_d; | |
| 42 | __u8 prefixlen_s; | |
| 43 | __u8 proto; | |
| 44 | int ifindex; | |
| 45 | uid_t user; | |
| 46 | }; | |
| 47 | ||
| 48 | #define XFRM_INF (~(__u64)0) | |
| 49 | ||
| 50 | struct xfrm_lifetime_cfg | |
| 51 | { | |
| 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; | |
| 60 | }; | |
| 61 | ||
| 62 | struct xfrm_lifetime_cur | |
| 63 | { | |
| 64 | __u64 bytes; | |
| 65 | __u64 packets; | |
| 66 | __u64 add_time; | |
| 67 | __u64 use_time; | |
| 68 | }; | |
| 69 | ||
| 70 | struct xfrm_replay_state | |
| 71 | { | |
| 72 | __u32 oseq; | |
| 73 | __u32 seq; | |
| 74 | __u32 bitmap; | |
| 75 | }; | |
| 76 | ||
| 77 | struct xfrm_algo { | |
| 78 | char alg_name[64]; | |
| 79 | int alg_key_len; /* in bits */ | |
| 80 | char alg_key[0]; | |
| 81 | }; | |
| 82 | ||
| 83 | struct xfrm_stats { | |
| 84 | __u32 replay_window; | |
| 85 | __u32 replay; | |
| 86 | __u32 integrity_failed; | |
| 87 | }; | |
| 88 | ||
| 89 | enum | |
| 90 | { | |
| 91 | XFRM_POLICY_IN = 0, | |
| 92 | XFRM_POLICY_OUT = 1, | |
| 93 | XFRM_POLICY_FWD = 2, | |
| 94 | XFRM_POLICY_MAX = 3 | |
| 95 | }; | |
| 96 | ||
| 97 | enum | |
| 98 | { | |
| 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 */ | |
| 103 | }; | |
| 104 | ||
| 105 | /* Netlink configuration messages. */ | |
| 106 | enum { | |
| 107 | XFRM_MSG_BASE = 0x10, | |
| 108 | ||
| 109 | XFRM_MSG_NEWSA = 0x10, | |
| 110 | #define XFRM_MSG_NEWSA XFRM_MSG_NEWSA | |
| 111 | XFRM_MSG_DELSA, | |
| 112 | #define XFRM_MSG_DELSA XFRM_MSG_DELSA | |
| 113 | XFRM_MSG_GETSA, | |
| 114 | #define XFRM_MSG_GETSA XFRM_MSG_GETSA | |
| 115 | ||
| 116 | XFRM_MSG_NEWPOLICY, | |
| 117 | #define XFRM_MSG_NEWPOLICY XFRM_MSG_NEWPOLICY | |
| 118 | XFRM_MSG_DELPOLICY, | |
| 119 | #define XFRM_MSG_DELPOLICY XFRM_MSG_DELPOLICY | |
| 120 | XFRM_MSG_GETPOLICY, | |
| 121 | #define XFRM_MSG_GETPOLICY XFRM_MSG_GETPOLICY | |
| 122 | ||
| 123 | XFRM_MSG_ALLOCSPI, | |
| 124 | #define XFRM_MSG_ALLOCSPI XFRM_MSG_ALLOCSPI | |
| 125 | XFRM_MSG_ACQUIRE, | |
| 126 | #define XFRM_MSG_ACQUIRE XFRM_MSG_ACQUIRE | |
| 127 | XFRM_MSG_EXPIRE, | |
| 128 | #define XFRM_MSG_EXPIRE XFRM_MSG_EXPIRE | |
| 129 | ||
| 130 | XFRM_MSG_UPDPOLICY, | |
| 131 | #define XFRM_MSG_UPDPOLICY XFRM_MSG_UPDPOLICY | |
| 132 | XFRM_MSG_UPDSA, | |
| 133 | #define XFRM_MSG_UPDSA XFRM_MSG_UPDSA | |
| 134 | ||
| 135 | XFRM_MSG_POLEXPIRE, | |
| 136 | #define XFRM_MSG_POLEXPIRE XFRM_MSG_POLEXPIRE | |
| 137 | ||
| 138 | XFRM_MSG_FLUSHSA, | |
| 139 | #define XFRM_MSG_FLUSHSA XFRM_MSG_FLUSHSA | |
| 140 | XFRM_MSG_FLUSHPOLICY, | |
| 141 | #define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY | |
| 142 | ||
| 526bdb80 | 143 | __XFRM_MSG_MAX |
| 1da177e4 | 144 | }; |
| 526bdb80 | 145 | #define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1) |
| 1da177e4 | 146 | |
| 492b558b TG |
147 | #define XFRM_NR_MSGTYPES (XFRM_MSG_MAX + 1 - XFRM_MSG_BASE) |
| 148 | ||
| 1da177e4 LT |
149 | struct xfrm_user_tmpl { |
| 150 | struct xfrm_id id; | |
| 151 | __u16 family; | |
| 152 | xfrm_address_t saddr; | |
| 153 | __u32 reqid; | |
| 154 | __u8 mode; | |
| 155 | __u8 share; | |
| 156 | __u8 optional; | |
| 157 | __u32 aalgos; | |
| 158 | __u32 ealgos; | |
| 159 | __u32 calgos; | |
| 160 | }; | |
| 161 | ||
| 162 | struct xfrm_encap_tmpl { | |
| 163 | __u16 encap_type; | |
| 164 | __u16 encap_sport; | |
| 165 | __u16 encap_dport; | |
| 166 | xfrm_address_t encap_oa; | |
| 167 | }; | |
| 168 | ||
| 169 | /* Netlink message attributes. */ | |
| 170 | enum xfrm_attr_type_t { | |
| 171 | XFRMA_UNSPEC, | |
| 172 | XFRMA_ALG_AUTH, /* struct xfrm_algo */ | |
| 173 | XFRMA_ALG_CRYPT, /* struct xfrm_algo */ | |
| 174 | XFRMA_ALG_COMP, /* struct xfrm_algo */ | |
| 175 | XFRMA_ENCAP, /* struct xfrm_algo + struct xfrm_encap_tmpl */ | |
| 176 | XFRMA_TMPL, /* 1 or more struct xfrm_user_tmpl */ | |
| 177 | __XFRMA_MAX | |
| 178 | ||
| 179 | #define XFRMA_MAX (__XFRMA_MAX - 1) | |
| 180 | }; | |
| 181 | ||
| 182 | struct xfrm_usersa_info { | |
| 183 | struct xfrm_selector sel; | |
| 184 | struct xfrm_id id; | |
| 185 | xfrm_address_t saddr; | |
| 186 | struct xfrm_lifetime_cfg lft; | |
| 187 | struct xfrm_lifetime_cur curlft; | |
| 188 | struct xfrm_stats stats; | |
| 189 | __u32 seq; | |
| 190 | __u32 reqid; | |
| 191 | __u16 family; | |
| 192 | __u8 mode; /* 0=transport,1=tunnel */ | |
| 193 | __u8 replay_window; | |
| 194 | __u8 flags; | |
| 195 | #define XFRM_STATE_NOECN 1 | |
| 196 | #define XFRM_STATE_DECAP_DSCP 2 | |
| 197 | }; | |
| 198 | ||
| 199 | struct xfrm_usersa_id { | |
| 200 | xfrm_address_t daddr; | |
| 201 | __u32 spi; | |
| 202 | __u16 family; | |
| 203 | __u8 proto; | |
| 204 | }; | |
| 205 | ||
| 206 | struct xfrm_userspi_info { | |
| 207 | struct xfrm_usersa_info info; | |
| 208 | __u32 min; | |
| 209 | __u32 max; | |
| 210 | }; | |
| 211 | ||
| 212 | struct xfrm_userpolicy_info { | |
| 213 | struct xfrm_selector sel; | |
| 214 | struct xfrm_lifetime_cfg lft; | |
| 215 | struct xfrm_lifetime_cur curlft; | |
| 216 | __u32 priority; | |
| 217 | __u32 index; | |
| 218 | __u8 dir; | |
| 219 | __u8 action; | |
| 220 | #define XFRM_POLICY_ALLOW 0 | |
| 221 | #define XFRM_POLICY_BLOCK 1 | |
| 222 | __u8 flags; | |
| 223 | #define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */ | |
| 224 | __u8 share; | |
| 225 | }; | |
| 226 | ||
| 227 | struct xfrm_userpolicy_id { | |
| 228 | struct xfrm_selector sel; | |
| 229 | __u32 index; | |
| 230 | __u8 dir; | |
| 231 | }; | |
| 232 | ||
| 233 | struct xfrm_user_acquire { | |
| 234 | struct xfrm_id id; | |
| 235 | xfrm_address_t saddr; | |
| 236 | struct xfrm_selector sel; | |
| 237 | struct xfrm_userpolicy_info policy; | |
| 238 | __u32 aalgos; | |
| 239 | __u32 ealgos; | |
| 240 | __u32 calgos; | |
| 241 | __u32 seq; | |
| 242 | }; | |
| 243 | ||
| 244 | struct xfrm_user_expire { | |
| 245 | struct xfrm_usersa_info state; | |
| 246 | __u8 hard; | |
| 247 | }; | |
| 248 | ||
| 249 | struct xfrm_user_polexpire { | |
| 250 | struct xfrm_userpolicy_info pol; | |
| 251 | __u8 hard; | |
| 252 | }; | |
| 253 | ||
| 254 | struct xfrm_usersa_flush { | |
| 255 | __u8 proto; | |
| 256 | }; | |
| 257 | ||
| 258 | #define XFRMGRP_ACQUIRE 1 | |
| 259 | #define XFRMGRP_EXPIRE 2 | |
| 260 | ||
| 261 | #endif /* _LINUX_XFRM_H */ |