Blame view
include/net/xfrm.h
46.5 KB
1da177e4c Linux-2.6.12-rc2 |
1 2 |
#ifndef _NET_XFRM_H #define _NET_XFRM_H |
aabc9761b [IPSEC]: Store id... |
3 |
#include <linux/compiler.h> |
1da177e4c Linux-2.6.12-rc2 |
4 5 6 7 |
#include <linux/xfrm.h> #include <linux/spinlock.h> #include <linux/list.h> #include <linux/skbuff.h> |
14c850212 [INET_SOCK]: Move... |
8 |
#include <linux/socket.h> |
1da177e4c Linux-2.6.12-rc2 |
9 |
#include <linux/pfkeyv2.h> |
5794708f1 [XFRM]: Introduce... |
10 |
#include <linux/ipsec.h> |
1da177e4c Linux-2.6.12-rc2 |
11 |
#include <linux/in6.h> |
4a3e2f711 [NET] sem2mutex: ... |
12 |
#include <linux/mutex.h> |
ab5f5e8b1 [XFRM]: xfrm audi... |
13 |
#include <linux/audit.h> |
5a0e3ad6a include cleanup: ... |
14 |
#include <linux/slab.h> |
1da177e4c Linux-2.6.12-rc2 |
15 16 17 |
#include <net/sock.h> #include <net/dst.h> |
436a0a402 [IPSEC]: Move out... |
18 |
#include <net/ip.h> |
1da177e4c Linux-2.6.12-rc2 |
19 20 21 |
#include <net/route.h> #include <net/ipv6.h> #include <net/ip6_fib.h> |
fe1a5f031 flow: virtualize ... |
22 |
#include <net/flow.h> |
9e0d57fd6 xfrm: SAD entries... |
23 24 |
#include <linux/interrupt.h> |
558f82ef6 [XFRM]: Define pa... |
25 26 27 |
#ifdef CONFIG_XFRM_STATISTICS #include <net/snmp.h> #endif |
1da177e4c Linux-2.6.12-rc2 |
28 |
|
d3d6dd3ad [XFRM]: Add modul... |
29 30 31 32 33 34 35 |
#define XFRM_PROTO_ESP 50 #define XFRM_PROTO_AH 51 #define XFRM_PROTO_COMP 108 #define XFRM_PROTO_IPIP 4 #define XFRM_PROTO_IPV6 41 #define XFRM_PROTO_ROUTING IPPROTO_ROUTING #define XFRM_PROTO_DSTOPTS IPPROTO_DSTOPTS |
fa9921e46 ipsec: allow to a... |
36 |
#define XFRM_ALIGN4(len) (((len) + 3) & ~3) |
1da177e4c Linux-2.6.12-rc2 |
37 |
#define XFRM_ALIGN8(len) (((len) + 7) & ~7) |
b59f45d0b [IPSEC] xfrm: Abs... |
38 39 |
#define MODULE_ALIAS_XFRM_MODE(family, encap) \ MODULE_ALIAS("xfrm-mode-" __stringify(family) "-" __stringify(encap)) |
d3d6dd3ad [XFRM]: Add modul... |
40 41 |
#define MODULE_ALIAS_XFRM_TYPE(family, proto) \ MODULE_ALIAS("xfrm-type-" __stringify(family) "-" __stringify(proto)) |
1da177e4c Linux-2.6.12-rc2 |
42 |
|
558f82ef6 [XFRM]: Define pa... |
43 |
#ifdef CONFIG_XFRM_STATISTICS |
59c9940ed netns xfrm: per-n... |
44 45 46 |
#define XFRM_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.xfrm_statistics, field) #define XFRM_INC_STATS_BH(net, field) SNMP_INC_STATS_BH((net)->mib.xfrm_statistics, field) #define XFRM_INC_STATS_USER(net, field) SNMP_INC_STATS_USER((net)-mib.xfrm_statistics, field) |
558f82ef6 [XFRM]: Define pa... |
47 |
#else |
59c9940ed netns xfrm: per-n... |
48 49 50 |
#define XFRM_INC_STATS(net, field) ((void)(net)) #define XFRM_INC_STATS_BH(net, field) ((void)(net)) #define XFRM_INC_STATS_USER(net, field) ((void)(net)) |
558f82ef6 [XFRM]: Define pa... |
51 |
#endif |
4a3e2f711 [NET] sem2mutex: ... |
52 |
extern struct mutex xfrm_cfg_mutex; |
1da177e4c Linux-2.6.12-rc2 |
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 |
/* Organization of SPD aka "XFRM rules" ------------------------------------ Basic objects: - policy rule, struct xfrm_policy (=SPD entry) - bundle of transformations, struct dst_entry == struct xfrm_dst (=SA bundle) - instance of a transformer, struct xfrm_state (=SA) - template to clone xfrm_state, struct xfrm_tmpl SPD is plain linear list of xfrm_policy rules, ordered by priority. (To be compatible with existing pfkeyv2 implementations, many rules with priority of 0x7fffffff are allowed to exist and such rules are ordered in an unpredictable way, thanks to bsd folks.) Lookup is plain linear search until the first match with selector. If "action" is "block", then we prohibit the flow, otherwise: if "xfrms_nr" is zero, the flow passes untransformed. Otherwise, policy entry has list of up to XFRM_MAX_DEPTH transformations, described by templates xfrm_tmpl. Each template is resolved to a complete xfrm_state (see below) and we pack bundle of transformations to a dst_entry returned to requestor. dst -. xfrm .-> xfrm_state #1 |---. child .-> dst -. xfrm .-> xfrm_state #2 |---. child .-> dst -. xfrm .-> xfrm_state #3 |---. child .-> NULL Bundles are cached at xrfm_policy struct (field ->bundles). Resolution of xrfm_tmpl ----------------------- Template contains: 1. ->mode Mode: transport or tunnel 2. ->id.proto Protocol: AH/ESP/IPCOMP 3. ->id.daddr Remote tunnel endpoint, ignored for transport mode. Q: allow to resolve security gateway? 4. ->id.spi If not zero, static SPI. 5. ->saddr Local tunnel endpoint, ignored for transport mode. 6. ->algos List of allowed algos. Plain bitmask now. Q: ealgos, aalgos, calgos. What a mess... 7. ->share Sharing mode. Q: how to implement private sharing mode? To add struct sock* to flow id? Having this template we search through SAD searching for entries with appropriate mode/proto/algo, permitted by selector. If no appropriate entry found, it is requested from key manager. PROBLEMS: Q: How to find all the bundles referring to a physical path for PMTU discovery? Seems, dst should contain list of all parents... and enter to infinite locking hierarchy disaster. No! It is easier, we will not search for them, let them find us. We add genid to each dst plus pointer to genid of raw IP route, pmtu disc will update pmtu on raw IP route and increase its genid. dst_check() will see this for top level and trigger resyncing metrics. Plus, it will be made via sk->sk_dst_cache. Solved. */ |
12a169e7d ipsec: Put dumper... |
114 115 116 117 118 119 120 121 122 |
struct xfrm_state_walk { struct list_head all; u8 state; union { u8 dying; u8 proto; }; u32 seq; }; |
1da177e4c Linux-2.6.12-rc2 |
123 |
/* Full description of state of transformer. */ |
fd2c3ef76 net: cleanup incl... |
124 |
struct xfrm_state { |
673c09be4 netns xfrm: add s... |
125 126 127 |
#ifdef CONFIG_NET_NS struct net *xs_net; #endif |
abb81c4f3 ipsec: Use RCU-li... |
128 |
union { |
12a169e7d ipsec: Put dumper... |
129 |
struct hlist_node gclist; |
abb81c4f3 ipsec: Use RCU-li... |
130 131 |
struct hlist_node bydst; }; |
8f126e37c [XFRM]: Convert x... |
132 133 |
struct hlist_node bysrc; struct hlist_node byspi; |
1da177e4c Linux-2.6.12-rc2 |
134 135 136 137 138 139 |
atomic_t refcnt; spinlock_t lock; struct xfrm_id id; struct xfrm_selector sel; |
bf825f81b xfrm: introduce b... |
140 |
struct xfrm_mark mark; |
35d2856b4 xfrm: Add Traffic... |
141 |
u32 tfcpad; |
1da177e4c Linux-2.6.12-rc2 |
142 |
|
9d4a706d8 [XFRM]: Add gener... |
143 |
u32 genid; |
12a169e7d ipsec: Put dumper... |
144 145 |
/* Key manager bits */ struct xfrm_state_walk km; |
1da177e4c Linux-2.6.12-rc2 |
146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 |
/* Parameters of this state. */ struct { u32 reqid; u8 mode; u8 replay_window; u8 aalgo, ealgo, calgo; u8 flags; u16 family; xfrm_address_t saddr; int header_len; int trailer_len; } props; struct xfrm_lifetime_cfg lft; /* Data for transformer */ |
4447bb33f xfrm: Store aalg ... |
163 |
struct xfrm_algo_auth *aalg; |
1da177e4c Linux-2.6.12-rc2 |
164 165 |
struct xfrm_algo *ealg; struct xfrm_algo *calg; |
1a6509d99 [IPSEC]: Add supp... |
166 |
struct xfrm_algo_aead *aead; |
1da177e4c Linux-2.6.12-rc2 |
167 168 169 |
/* Data for encapsulator */ struct xfrm_encap_tmpl *encap; |
060f02a3b [XFRM] STATE: Int... |
170 171 |
/* Data for care-of address */ xfrm_address_t *coaddr; |
1da177e4c Linux-2.6.12-rc2 |
172 173 174 175 176 177 178 179 |
/* IPComp needs an IPIP tunnel for handling uncompressed packets */ struct xfrm_state *tunnel; /* If a tunnel, number of users + 1 */ atomic_t tunnel_users; /* State for replay detection */ struct xfrm_replay_state replay; |
9736acf39 xfrm: Add basic i... |
180 |
struct xfrm_replay_state_esn *replay_esn; |
1da177e4c Linux-2.6.12-rc2 |
181 |
|
f8cd54884 [IPSEC]: Sync ser... |
182 183 |
/* Replay detection state at the time we sent the last notification */ struct xfrm_replay_state preplay; |
9736acf39 xfrm: Add basic i... |
184 |
struct xfrm_replay_state_esn *preplay_esn; |
f8cd54884 [IPSEC]: Sync ser... |
185 |
|
9fdc4883d xfrm: Move IPsec ... |
186 187 |
/* The functions for replay detection. */ struct xfrm_replay *repl; |
2717096ab [XFRM]: Fix aeven... |
188 189 190 191 |
/* internal flag that only holds state for delayed aevent at the * moment */ u32 xflags; |
f8cd54884 [IPSEC]: Sync ser... |
192 193 194 195 196 197 |
/* Replay detection notification settings */ u32 replay_maxage; u32 replay_maxdiff; /* Replay detection notification timer */ struct timer_list rtimer; |
1da177e4c Linux-2.6.12-rc2 |
198 199 200 201 |
/* Statistics */ struct xfrm_stats stats; struct xfrm_lifetime_cur curlft; |
9e0d57fd6 xfrm: SAD entries... |
202 |
struct tasklet_hrtimer mtimer; |
1da177e4c Linux-2.6.12-rc2 |
203 |
|
9afaca057 [XFRM] IPV6: Upda... |
204 |
/* Last used time */ |
d26f39840 [IPSEC]: Make x->... |
205 |
unsigned long lastused; |
9afaca057 [XFRM] IPV6: Upda... |
206 |
|
1da177e4c Linux-2.6.12-rc2 |
207 208 |
/* Reference to data common to all the instances of this * transformer. */ |
533cb5b0a [XFRM]: constify ... |
209 |
const struct xfrm_type *type; |
13996378e [IPSEC]: Rename m... |
210 |
struct xfrm_mode *inner_mode; |
df9dcb458 [IPSEC]: Fix inte... |
211 |
struct xfrm_mode *inner_mode_iaf; |
13996378e [IPSEC]: Rename m... |
212 |
struct xfrm_mode *outer_mode; |
1da177e4c Linux-2.6.12-rc2 |
213 |
|
df71837d5 [LSM-IPSec]: Secu... |
214 215 |
/* Security context */ struct xfrm_sec_ctx *security; |
1da177e4c Linux-2.6.12-rc2 |
216 217 218 219 |
/* Private data of this transformer, format is opaque, * interpreted by xfrm_type methods. */ void *data; }; |
673c09be4 netns xfrm: add s... |
220 221 222 223 |
static inline struct net *xs_net(struct xfrm_state *x) { return read_pnet(&x->xs_net); } |
2717096ab [XFRM]: Fix aeven... |
224 225 |
/* xflags - make enum if more show up */ #define XFRM_TIME_DEFER 1 |
1da177e4c Linux-2.6.12-rc2 |
226 227 228 229 230 231 232 233 |
enum { XFRM_STATE_VOID, XFRM_STATE_ACQ, XFRM_STATE_VALID, XFRM_STATE_ERROR, XFRM_STATE_EXPIRED, XFRM_STATE_DEAD }; |
26b15dad9 [IPSEC] Add compl... |
234 |
/* callback structure passed from either netlink or pfkey */ |
fd2c3ef76 net: cleanup incl... |
235 |
struct km_event { |
bf08867f9 [IPSEC] Turn km_e... |
236 237 238 239 |
union { u32 hard; u32 proto; u32 byid; |
f8cd54884 [IPSEC]: Sync ser... |
240 |
u32 aevent; |
f7b6983f0 [XFRM] POLICY: Su... |
241 |
u32 type; |
bf08867f9 [IPSEC] Turn km_e... |
242 |
} data; |
26b15dad9 [IPSEC] Add compl... |
243 244 245 |
u32 seq; u32 pid; u32 event; |
7067802e2 netns xfrm: pass ... |
246 |
struct net *net; |
26b15dad9 [IPSEC] Add compl... |
247 |
}; |
9fdc4883d xfrm: Move IPsec ... |
248 249 250 251 252 253 254 255 |
struct xfrm_replay { void (*advance)(struct xfrm_state *x, __be32 net_seq); int (*check)(struct xfrm_state *x, struct sk_buff *skb, __be32 net_seq); void (*notify)(struct xfrm_state *x, int event); int (*overflow)(struct xfrm_state *x, struct sk_buff *skb); }; |
25ee3286d [IPSEC]: Merge co... |
256 |
struct net_device; |
1da177e4c Linux-2.6.12-rc2 |
257 258 259 260 |
struct xfrm_type; struct xfrm_dst; struct xfrm_policy_afinfo { unsigned short family; |
1da177e4c Linux-2.6.12-rc2 |
261 |
struct dst_ops *dst_ops; |
ddcfd7968 netns xfrm: dst g... |
262 |
void (*garbage_collect)(struct net *net); |
c5b3cf46e netns xfrm: ->dst... |
263 |
struct dst_entry *(*dst_lookup)(struct net *net, int tos, |
5e6b930f2 xfrm: Const'ify a... |
264 265 |
const xfrm_address_t *saddr, const xfrm_address_t *daddr); |
fbda33b2b netns xfrm: ->get... |
266 |
int (*get_saddr)(struct net *net, xfrm_address_t *saddr, xfrm_address_t *daddr); |
1da177e4c Linux-2.6.12-rc2 |
267 |
void (*decode_session)(struct sk_buff *skb, |
d5422efe6 [IPSEC]: Added xf... |
268 269 |
struct flowi *fl, int reverse); |
05d840257 xfrm: Mark flowi ... |
270 |
int (*get_tos)(const struct flowi *fl); |
a1b051405 [XFRM] IPv6: Fix ... |
271 272 273 |
int (*init_path)(struct xfrm_dst *path, struct dst_entry *dst, int nfheader_len); |
25ee3286d [IPSEC]: Merge co... |
274 |
int (*fill_dst)(struct xfrm_dst *xdst, |
87c1e12b5 ipsec: Fix bogus ... |
275 |
struct net_device *dev, |
0c7b3eefb xfrm: Mark flowi ... |
276 |
const struct flowi *fl); |
2774c131b xfrm: Handle blac... |
277 |
struct dst_entry *(*blackhole_route)(struct net *net, struct dst_entry *orig); |
1da177e4c Linux-2.6.12-rc2 |
278 279 280 281 |
}; extern int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo); extern int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo); |
214e005bc xfrm: Pass km_eve... |
282 283 |
extern void km_policy_notify(struct xfrm_policy *xp, int dir, const struct km_event *c); extern void km_state_notify(struct xfrm_state *x, const struct km_event *c); |
1da177e4c Linux-2.6.12-rc2 |
284 285 |
struct xfrm_tmpl; |
980ebd257 [IPSEC]: Sync ser... |
286 |
extern int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol); |
53bc6b4d2 [IPSEC]: Sync ser... |
287 288 |
extern void km_state_expired(struct xfrm_state *x, int hard, u32 pid); extern int __xfrm_state_delete(struct xfrm_state *x); |
1da177e4c Linux-2.6.12-rc2 |
289 |
struct xfrm_state_afinfo { |
17c2a42a2 [IPSEC]: Store af... |
290 |
unsigned int family; |
36cf9acf9 [IPSEC]: Separate... |
291 |
unsigned int proto; |
8e3d716cc xfrm: ->eth_proto... |
292 |
__be16 eth_proto; |
17c2a42a2 [IPSEC]: Store af... |
293 |
struct module *owner; |
533cb5b0a [XFRM]: constify ... |
294 |
const struct xfrm_type *type_map[IPPROTO_MAX]; |
aa5d62cc8 [IPSEC]: Move typ... |
295 |
struct xfrm_mode *mode_map[XFRM_MODE_MAX]; |
d094cd83c [IPSEC]: Add xfrm... |
296 |
int (*init_flags)(struct xfrm_state *x); |
73e5ebb20 xfrm: Mark flowi ... |
297 298 |
void (*init_tempsel)(struct xfrm_selector *sel, const struct flowi *fl); |
19bd62441 xfrm: Const'ify t... |
299 300 301 302 |
void (*init_temprop)(struct xfrm_state *x, const struct xfrm_tmpl *tmpl, const xfrm_address_t *daddr, const xfrm_address_t *saddr); |
41a49cc3c [XFRM]: Add sorti... |
303 304 |
int (*tmpl_sort)(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n); int (*state_sort)(struct xfrm_state **dst, struct xfrm_state **src, int n); |
cdca72652 [IPSEC]: exportin... |
305 |
int (*output)(struct sk_buff *skb); |
43a4dea4c xfrm: Assign the ... |
306 |
int (*output_finish)(struct sk_buff *skb); |
227620e29 [IPSEC]: Separate... |
307 308 |
int (*extract_input)(struct xfrm_state *x, struct sk_buff *skb); |
36cf9acf9 [IPSEC]: Separate... |
309 310 |
int (*extract_output)(struct xfrm_state *x, struct sk_buff *skb); |
716062fd4 [IPSEC]: Merge mo... |
311 312 |
int (*transport_finish)(struct sk_buff *skb, int async); |
1da177e4c Linux-2.6.12-rc2 |
313 314 315 316 317 318 |
}; extern int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo); extern int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo); extern void xfrm_state_delete_tunnel(struct xfrm_state *x); |
fd2c3ef76 net: cleanup incl... |
319 |
struct xfrm_type { |
1da177e4c Linux-2.6.12-rc2 |
320 321 |
char *description; struct module *owner; |
a63374631 xfrm: use proper ... |
322 323 |
u8 proto; u8 flags; |
1b5c22998 [XFRM] STATE: Sup... |
324 |
#define XFRM_TYPE_NON_FRAGMENT 1 |
436a0a402 [IPSEC]: Move out... |
325 |
#define XFRM_TYPE_REPLAY_PROT 2 |
f04e7e8d7 [IPSEC]: Replace ... |
326 327 |
#define XFRM_TYPE_LOCAL_COADDR 4 #define XFRM_TYPE_REMOTE_COADDR 8 |
1da177e4c Linux-2.6.12-rc2 |
328 |
|
72cb6962a [IPSEC]: Add xfrm... |
329 |
int (*init_state)(struct xfrm_state *x); |
1da177e4c Linux-2.6.12-rc2 |
330 |
void (*destructor)(struct xfrm_state *); |
e695633e2 [IPSEC]: Kill unu... |
331 |
int (*input)(struct xfrm_state *, struct sk_buff *skb); |
1da177e4c Linux-2.6.12-rc2 |
332 |
int (*output)(struct xfrm_state *, struct sk_buff *pskb); |
8f029de28 xfrm: Mark flowi ... |
333 334 |
int (*reject)(struct xfrm_state *, struct sk_buff *, const struct flowi *); |
aee5adb43 [XFRM] STATE: Add... |
335 |
int (*hdr_offset)(struct xfrm_state *, struct sk_buff *, u8 **); |
1da177e4c Linux-2.6.12-rc2 |
336 |
/* Estimate maximal size of result of transformation of a dgram */ |
c5c252389 [XFRM]: Optimize ... |
337 |
u32 (*get_mtu)(struct xfrm_state *, int size); |
1da177e4c Linux-2.6.12-rc2 |
338 |
}; |
533cb5b0a [XFRM]: constify ... |
339 340 |
extern int xfrm_register_type(const struct xfrm_type *type, unsigned short family); extern int xfrm_unregister_type(const struct xfrm_type *type, unsigned short family); |
1da177e4c Linux-2.6.12-rc2 |
341 |
|
b59f45d0b [IPSEC] xfrm: Abs... |
342 |
struct xfrm_mode { |
227620e29 [IPSEC]: Separate... |
343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 |
/* * Remove encapsulation header. * * The IP header will be moved over the top of the encapsulation * header. * * On entry, the transport header shall point to where the IP header * should be and the network header shall be set to where the IP * header currently is. skb->data shall point to the start of the * payload. */ int (*input2)(struct xfrm_state *x, struct sk_buff *skb); /* * This is the actual input entry point. * * For transport mode and equivalent this would be identical to * input2 (which does not need to be set). While tunnel mode * and equivalent would set this to the tunnel encapsulation function * xfrm4_prepare_input that would in turn call input2. */ |
b59f45d0b [IPSEC] xfrm: Abs... |
364 |
int (*input)(struct xfrm_state *x, struct sk_buff *skb); |
37fedd3aa [IPSEC]: Use IPv6... |
365 366 367 368 369 370 371 372 373 374 375 376 |
/* * Add encapsulation header. * * On exit, the transport header will be set to the start of the * encapsulation header to be filled in by x->type->output and * the mac header will be set to the nextheader (protocol for * IPv4) field of the extension header directly preceding the * encapsulation header, or in its absence, that of the top IP * header. The value of the network header will always point * to the top IP header while skb->data will point to the payload. */ |
36cf9acf9 [IPSEC]: Separate... |
377 378 379 380 381 382 383 384 385 386 387 388 |
int (*output2)(struct xfrm_state *x,struct sk_buff *skb); /* * This is the actual output entry point. * * For transport mode and equivalent this would be identical to * output2 (which does not need to be set). While tunnel mode * and equivalent would set this to a tunnel encapsulation function * (xfrm4_prepare_output or xfrm6_prepare_output) that would in turn * call output2. */ int (*output)(struct xfrm_state *x, struct sk_buff *skb); |
b59f45d0b [IPSEC] xfrm: Abs... |
389 |
|
17c2a42a2 [IPSEC]: Store af... |
390 |
struct xfrm_state_afinfo *afinfo; |
b59f45d0b [IPSEC] xfrm: Abs... |
391 392 |
struct module *owner; unsigned int encap; |
1bfcb10f6 [IPSEC]: Add miss... |
393 394 395 396 397 398 |
int flags; }; /* Flags for xfrm_mode. */ enum { XFRM_MODE_FLAG_TUNNEL = 1, |
b59f45d0b [IPSEC] xfrm: Abs... |
399 400 401 402 |
}; extern int xfrm_register_mode(struct xfrm_mode *mode, int family); extern int xfrm_unregister_mode(struct xfrm_mode *mode, int family); |
b59f45d0b [IPSEC] xfrm: Abs... |
403 |
|
df9dcb458 [IPSEC]: Fix inte... |
404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 |
static inline int xfrm_af2proto(unsigned int family) { switch(family) { case AF_INET: return IPPROTO_IPIP; case AF_INET6: return IPPROTO_IPV6; default: return 0; } } static inline struct xfrm_mode *xfrm_ip2inner_mode(struct xfrm_state *x, int ipproto) { if ((ipproto == IPPROTO_IPIP && x->props.family == AF_INET) || (ipproto == IPPROTO_IPV6 && x->props.family == AF_INET6)) return x->inner_mode; else return x->inner_mode_iaf; } |
fd2c3ef76 net: cleanup incl... |
424 |
struct xfrm_tmpl { |
1da177e4c Linux-2.6.12-rc2 |
425 426 427 428 429 430 431 432 433 434 |
/* id in template is interpreted as: * daddr - destination of tunnel, may be zero for transport mode. * spi - zero to acquire spi. Not zero if spi is static, then * daddr must be fixed too. * proto - AH/ESP/IPCOMP */ struct xfrm_id id; /* Source address of tunnel. Ignored, if it is not a tunnel. */ xfrm_address_t saddr; |
76b3f055f [IPSEC]: Add enca... |
435 |
unsigned short encap_family; |
a63374631 xfrm: use proper ... |
436 |
u32 reqid; |
1da177e4c Linux-2.6.12-rc2 |
437 |
|
7e49e6de3 [XFRM]: Add XFRM_... |
438 |
/* Mode: transport, tunnel etc. */ |
a63374631 xfrm: use proper ... |
439 |
u8 mode; |
1da177e4c Linux-2.6.12-rc2 |
440 441 |
/* Sharing mode: unique, this session only, this user only etc. */ |
a63374631 xfrm: use proper ... |
442 |
u8 share; |
1da177e4c Linux-2.6.12-rc2 |
443 444 |
/* May skip this transfomration if no SA is found */ |
a63374631 xfrm: use proper ... |
445 |
u8 optional; |
1da177e4c Linux-2.6.12-rc2 |
446 |
|
c5d18e984 [IPSEC]: Fix catc... |
447 |
/* Skip aalgos/ealgos/calgos checks. */ |
a63374631 xfrm: use proper ... |
448 |
u8 allalgs; |
c5d18e984 [IPSEC]: Fix catc... |
449 |
|
1da177e4c Linux-2.6.12-rc2 |
450 |
/* Bit mask of algos allowed for acquisition */ |
a63374631 xfrm: use proper ... |
451 452 453 |
u32 aalgos; u32 ealgos; u32 calgos; |
1da177e4c Linux-2.6.12-rc2 |
454 |
}; |
622dc8281 [XFRM]: Expand XF... |
455 |
#define XFRM_MAX_DEPTH 6 |
1da177e4c Linux-2.6.12-rc2 |
456 |
|
12a169e7d ipsec: Put dumper... |
457 458 459 460 461 462 463 464 465 466 |
struct xfrm_policy_walk_entry { struct list_head all; u8 dead; }; struct xfrm_policy_walk { struct xfrm_policy_walk_entry walk; u8 type; u32 seq; }; |
fd2c3ef76 net: cleanup incl... |
467 |
struct xfrm_policy { |
0331b1f38 netns xfrm: add s... |
468 469 470 |
#ifdef CONFIG_NET_NS struct net *xp_net; #endif |
2518c7c2b [XFRM]: Hash poli... |
471 472 |
struct hlist_node bydst; struct hlist_node byidx; |
1da177e4c Linux-2.6.12-rc2 |
473 474 475 476 477 |
/* This lock only affects elements except for entry. */ rwlock_t lock; atomic_t refcnt; struct timer_list timer; |
fe1a5f031 flow: virtualize ... |
478 |
struct flow_cache_object flo; |
80c802f30 xfrm: cache bundl... |
479 |
atomic_t genid; |
1da177e4c Linux-2.6.12-rc2 |
480 481 |
u32 priority; u32 index; |
bf825f81b xfrm: introduce b... |
482 |
struct xfrm_mark mark; |
1da177e4c Linux-2.6.12-rc2 |
483 484 485 |
struct xfrm_selector selector; struct xfrm_lifetime_cfg lft; struct xfrm_lifetime_cur curlft; |
12a169e7d ipsec: Put dumper... |
486 |
struct xfrm_policy_walk_entry walk; |
46ca5f5dc [XFRM]: Pack stru... |
487 488 489 |
u8 type; u8 action; u8 flags; |
46ca5f5dc [XFRM]: Pack stru... |
490 |
u8 xfrm_nr; |
12a169e7d ipsec: Put dumper... |
491 |
u16 family; |
df71837d5 [LSM-IPSec]: Secu... |
492 |
struct xfrm_sec_ctx *security; |
1da177e4c Linux-2.6.12-rc2 |
493 494 |
struct xfrm_tmpl xfrm_vec[XFRM_MAX_DEPTH]; }; |
63eb23f5d xfrm: Const'ify p... |
495 |
static inline struct net *xp_net(const struct xfrm_policy *xp) |
0331b1f38 netns xfrm: add s... |
496 497 498 |
{ return read_pnet(&xp->xp_net); } |
13c1d1893 xfrm: MIGRATE enh... |
499 500 501 502 503 504 |
struct xfrm_kmaddress { xfrm_address_t local; xfrm_address_t remote; u32 reserved; u16 family; }; |
80c9abaab [XFRM]: Extension... |
505 506 507 508 509 510 511 512 513 514 515 516 |
struct xfrm_migrate { xfrm_address_t old_daddr; xfrm_address_t old_saddr; xfrm_address_t new_daddr; xfrm_address_t new_saddr; u8 proto; u8 mode; u16 reserved; u32 reqid; u16 old_family; u16 new_family; }; |
f8cd54884 [IPSEC]: Sync ser... |
517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 |
#define XFRM_KM_TIMEOUT 30 /* which seqno */ #define XFRM_REPLAY_SEQ 1 #define XFRM_REPLAY_OSEQ 2 #define XFRM_REPLAY_SEQ_MASK 3 /* what happened */ #define XFRM_REPLAY_UPDATE XFRM_AE_CR #define XFRM_REPLAY_TIMEOUT XFRM_AE_CE /* default aevent timeout in units of 100ms */ #define XFRM_AE_ETIME 10 /* Async Event timer multiplier */ #define XFRM_AE_ETH_M 10 /* default seq threshold size */ #define XFRM_AE_SEQT_SIZE 2 |
1da177e4c Linux-2.6.12-rc2 |
532 |
|
fd2c3ef76 net: cleanup incl... |
533 |
struct xfrm_mgr { |
1da177e4c Linux-2.6.12-rc2 |
534 535 |
struct list_head list; char *id; |
214e005bc xfrm: Pass km_eve... |
536 |
int (*notify)(struct xfrm_state *x, const struct km_event *c); |
1da177e4c Linux-2.6.12-rc2 |
537 |
int (*acquire)(struct xfrm_state *x, struct xfrm_tmpl *, struct xfrm_policy *xp, int dir); |
cb969f072 [MLSXFRM]: Defaul... |
538 |
struct xfrm_policy *(*compile_policy)(struct sock *sk, int opt, u8 *data, int len, int *dir); |
5d36b1803 [XFRM]: annotate ... |
539 |
int (*new_mapping)(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport); |
214e005bc xfrm: Pass km_eve... |
540 |
int (*notify_policy)(struct xfrm_policy *x, int dir, const struct km_event *c); |
db983c114 netns xfrm: KM re... |
541 |
int (*report)(struct net *net, u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr); |
183cad127 xfrm: Const'ify p... |
542 543 544 545 546 |
int (*migrate)(const struct xfrm_selector *sel, u8 dir, u8 type, const struct xfrm_migrate *m, int num_bundles, const struct xfrm_kmaddress *k); |
1da177e4c Linux-2.6.12-rc2 |
547 548 549 550 |
}; extern int xfrm_register_km(struct xfrm_mgr *km); extern int xfrm_unregister_km(struct xfrm_mgr *km); |
436a0a402 [IPSEC]: Move out... |
551 552 553 554 555 556 557 558 559 560 561 562 |
/* * This structure is used for the duration where packets are being * transformed by IPsec. As soon as the packet leaves IPsec the * area beyond the generic IP part may be overwritten. */ struct xfrm_skb_cb { union { struct inet_skb_parm h4; struct inet6_skb_parm h6; } header; /* Sequence number for replay protection. */ |
b318e0e4e [IPSEC]: Fix bogu... |
563 |
union { |
1ce3644ad xfrm: Use separat... |
564 565 566 567 568 569 570 571 |
struct { __u32 low; __u32 hi; } output; struct { __be32 low; __be32 hi; } input; |
b318e0e4e [IPSEC]: Fix bogu... |
572 |
} seq; |
436a0a402 [IPSEC]: Move out... |
573 574 575 |
}; #define XFRM_SKB_CB(__skb) ((struct xfrm_skb_cb *)&((__skb)->cb[0])) |
36cf9acf9 [IPSEC]: Separate... |
576 577 578 579 580 581 582 583 584 585 586 587 588 |
/* * This structure is used by the afinfo prepare_input/prepare_output functions * to transmit header information to the mode input/output functions. */ struct xfrm_mode_skb_cb { union { struct inet_skb_parm h4; struct inet6_skb_parm h6; } header; /* Copied from header for IPv4, always set to zero and DF for IPv6. */ __be16 id; __be16 frag_off; |
732c8bd59 [IPSEC]: Fix BEET... |
589 590 |
/* IP header length (excluding options or extension headers). */ u8 ihl; |
36cf9acf9 [IPSEC]: Separate... |
591 592 593 594 595 596 597 598 |
/* TOS for IPv4, class for IPv6. */ u8 tos; /* TTL for IPv4, hop limitfor IPv6. */ u8 ttl; /* Protocol for IPv4, NH for IPv6. */ u8 protocol; |
732c8bd59 [IPSEC]: Fix BEET... |
599 600 |
/* Option length for IPv4, zero for IPv6. */ u8 optlen; |
36cf9acf9 [IPSEC]: Separate... |
601 602 603 604 605 |
/* Used by IPv6 only, zero for IPv4. */ u8 flow_lbl[3]; }; #define XFRM_MODE_SKB_CB(__skb) ((struct xfrm_mode_skb_cb *)&((__skb)->cb[0])) |
716062fd4 [IPSEC]: Merge mo... |
606 607 608 609 610 611 612 613 614 |
/* * This structure is used by the input processing to locate the SPI and * related information. */ struct xfrm_spi_skb_cb { union { struct inet_skb_parm h4; struct inet6_skb_parm h6; } header; |
716062fd4 [IPSEC]: Merge mo... |
615 |
unsigned int daddroff; |
2fcb45b6b [IPSEC]: Use the ... |
616 |
unsigned int family; |
716062fd4 [IPSEC]: Merge mo... |
617 618 619 |
}; #define XFRM_SPI_SKB_CB(__skb) ((struct xfrm_spi_skb_cb *)&((__skb)->cb[0])) |
161a09e73 audit: Add auditi... |
620 |
/* Audit Information */ |
fd2c3ef76 net: cleanup incl... |
621 |
struct xfrm_audit { |
161a09e73 audit: Add auditi... |
622 |
u32 secid; |
2532386f4 Audit: collect se... |
623 624 |
uid_t loginuid; u32 sessionid; |
161a09e73 audit: Add auditi... |
625 |
}; |
c9204d9ca audit: disable ip... |
626 627 |
#ifdef CONFIG_AUDITSYSCALL |
afeb14b49 [XFRM]: RFC4303 c... |
628 |
static inline struct audit_buffer *xfrm_audit_start(const char *op) |
ab5f5e8b1 [XFRM]: xfrm audi... |
629 630 |
{ struct audit_buffer *audit_buf = NULL; |
ab5f5e8b1 [XFRM]: xfrm audi... |
631 |
|
afeb14b49 [XFRM]: RFC4303 c... |
632 633 |
if (audit_enabled == 0) return NULL; |
ab5f5e8b1 [XFRM]: xfrm audi... |
634 |
audit_buf = audit_log_start(current->audit_context, GFP_ATOMIC, |
afeb14b49 [XFRM]: RFC4303 c... |
635 |
AUDIT_MAC_IPSEC_EVENT); |
ab5f5e8b1 [XFRM]: xfrm audi... |
636 637 |
if (audit_buf == NULL) return NULL; |
afeb14b49 [XFRM]: RFC4303 c... |
638 639 640 |
audit_log_format(audit_buf, "op=%s", op); return audit_buf; } |
ab5f5e8b1 [XFRM]: xfrm audi... |
641 |
|
2532386f4 Audit: collect se... |
642 |
static inline void xfrm_audit_helper_usrinfo(uid_t auid, u32 ses, u32 secid, |
afeb14b49 [XFRM]: RFC4303 c... |
643 644 645 646 |
struct audit_buffer *audit_buf) { char *secctx; u32 secctx_len; |
ab5f5e8b1 [XFRM]: xfrm audi... |
647 |
|
2532386f4 Audit: collect se... |
648 |
audit_log_format(audit_buf, " auid=%u ses=%u", auid, ses); |
68277accb [XFRM]: Assorted ... |
649 650 |
if (secid != 0 && security_secid_to_secctx(secid, &secctx, &secctx_len) == 0) { |
ab5f5e8b1 [XFRM]: xfrm audi... |
651 652 653 654 |
audit_log_format(audit_buf, " subj=%s", secctx); security_release_secctx(secctx, secctx_len); } else audit_log_task_context(audit_buf); |
ab5f5e8b1 [XFRM]: xfrm audi... |
655 656 657 |
} extern void xfrm_audit_policy_add(struct xfrm_policy *xp, int result, |
2532386f4 Audit: collect se... |
658 |
u32 auid, u32 ses, u32 secid); |
ab5f5e8b1 [XFRM]: xfrm audi... |
659 |
extern void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result, |
2532386f4 Audit: collect se... |
660 |
u32 auid, u32 ses, u32 secid); |
ab5f5e8b1 [XFRM]: xfrm audi... |
661 |
extern void xfrm_audit_state_add(struct xfrm_state *x, int result, |
2532386f4 Audit: collect se... |
662 |
u32 auid, u32 ses, u32 secid); |
ab5f5e8b1 [XFRM]: xfrm audi... |
663 |
extern void xfrm_audit_state_delete(struct xfrm_state *x, int result, |
2532386f4 Audit: collect se... |
664 |
u32 auid, u32 ses, u32 secid); |
afeb14b49 [XFRM]: RFC4303 c... |
665 666 |
extern void xfrm_audit_state_replay_overflow(struct xfrm_state *x, struct sk_buff *skb); |
9fdc4883d xfrm: Move IPsec ... |
667 668 |
extern void xfrm_audit_state_replay(struct xfrm_state *x, struct sk_buff *skb, __be32 net_seq); |
afeb14b49 [XFRM]: RFC4303 c... |
669 670 671 672 673 |
extern void xfrm_audit_state_notfound_simple(struct sk_buff *skb, u16 family); extern void xfrm_audit_state_notfound(struct sk_buff *skb, u16 family, __be32 net_spi, __be32 net_seq); extern void xfrm_audit_state_icvfail(struct xfrm_state *x, struct sk_buff *skb, u8 proto); |
c9204d9ca audit: disable ip... |
674 |
#else |
41fef0ee7 xfrm: convert emp... |
675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 |
static inline void xfrm_audit_policy_add(struct xfrm_policy *xp, int result, u32 auid, u32 ses, u32 secid) { } static inline void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result, u32 auid, u32 ses, u32 secid) { } static inline void xfrm_audit_state_add(struct xfrm_state *x, int result, u32 auid, u32 ses, u32 secid) { } static inline void xfrm_audit_state_delete(struct xfrm_state *x, int result, u32 auid, u32 ses, u32 secid) { } static inline void xfrm_audit_state_replay_overflow(struct xfrm_state *x, struct sk_buff *skb) { } |
9fdc4883d xfrm: Move IPsec ... |
700 701 702 703 |
static inline void xfrm_audit_state_replay(struct xfrm_state *x, struct sk_buff *skb, __be32 net_seq) { } |
41fef0ee7 xfrm: convert emp... |
704 705 706 707 708 709 710 711 712 713 714 715 716 717 |
static inline void xfrm_audit_state_notfound_simple(struct sk_buff *skb, u16 family) { } static inline void xfrm_audit_state_notfound(struct sk_buff *skb, u16 family, __be32 net_spi, __be32 net_seq) { } static inline void xfrm_audit_state_icvfail(struct xfrm_state *x, struct sk_buff *skb, u8 proto) { } |
c9204d9ca audit: disable ip... |
718 |
#endif /* CONFIG_AUDITSYSCALL */ |
161a09e73 audit: Add auditi... |
719 |
|
1da177e4c Linux-2.6.12-rc2 |
720 721 722 723 724 |
static inline void xfrm_pol_hold(struct xfrm_policy *policy) { if (likely(policy != NULL)) atomic_inc(&policy->refcnt); } |
64c31b3f7 [XFRM] xfrm_polic... |
725 |
extern void xfrm_policy_destroy(struct xfrm_policy *policy); |
1da177e4c Linux-2.6.12-rc2 |
726 727 728 729 |
static inline void xfrm_pol_put(struct xfrm_policy *policy) { if (atomic_dec_and_test(&policy->refcnt)) |
64c31b3f7 [XFRM] xfrm_polic... |
730 |
xfrm_policy_destroy(policy); |
1da177e4c Linux-2.6.12-rc2 |
731 |
} |
4e81bb833 [XFRM] POLICY: su... |
732 733 734 735 736 737 |
static inline void xfrm_pols_put(struct xfrm_policy **pols, int npols) { int i; for (i = npols - 1; i >= 0; --i) xfrm_pol_put(pols[i]); } |
4e81bb833 [XFRM] POLICY: su... |
738 |
|
1da177e4c Linux-2.6.12-rc2 |
739 |
extern void __xfrm_state_destroy(struct xfrm_state *); |
21380b81e [XFRM]: Eliminate... |
740 741 742 743 |
static inline void __xfrm_state_put(struct xfrm_state *x) { atomic_dec(&x->refcnt); } |
1da177e4c Linux-2.6.12-rc2 |
744 745 746 747 748 749 750 751 752 753 |
static inline void xfrm_state_put(struct xfrm_state *x) { if (atomic_dec_and_test(&x->refcnt)) __xfrm_state_destroy(x); } static inline void xfrm_state_hold(struct xfrm_state *x) { atomic_inc(&x->refcnt); } |
1744a8fe0 xfrm: Mark token ... |
754 755 |
static inline bool addr_match(const void *token1, const void *token2, int prefixlen) |
1da177e4c Linux-2.6.12-rc2 |
756 |
{ |
1744a8fe0 xfrm: Mark token ... |
757 758 |
const __be32 *a1 = token1; const __be32 *a2 = token2; |
1da177e4c Linux-2.6.12-rc2 |
759 760 |
int pdw; int pbi; |
a63374631 xfrm: use proper ... |
761 |
pdw = prefixlen >> 5; /* num of whole u32 in prefix */ |
1da177e4c Linux-2.6.12-rc2 |
762 763 764 765 |
pbi = prefixlen & 0x1f; /* num of bits in incomplete u32 in prefix */ if (pdw) if (memcmp(a1, a2, pdw << 2)) |
1744a8fe0 xfrm: Mark token ... |
766 |
return false; |
1da177e4c Linux-2.6.12-rc2 |
767 768 |
if (pbi) { |
5f19343fb [XFRM]: addr_matc... |
769 |
__be32 mask; |
1da177e4c Linux-2.6.12-rc2 |
770 771 772 773 |
mask = htonl((0xffffffff) << (32 - pbi)); if ((a1[pdw] ^ a2[pdw]) & mask) |
1744a8fe0 xfrm: Mark token ... |
774 |
return false; |
1da177e4c Linux-2.6.12-rc2 |
775 |
} |
1744a8fe0 xfrm: Mark token ... |
776 |
return true; |
1da177e4c Linux-2.6.12-rc2 |
777 |
} |
26bff940d xfrm: optimize ip... |
778 779 780 781 782 783 784 |
static inline bool addr4_match(__be32 a1, __be32 a2, u8 prefixlen) { /* C99 6.5.7 (3): u32 << 32 is undefined behaviour */ if (prefixlen == 0) return true; return !((a1 ^ a2) & htonl(0xFFFFFFFFu << (32 - prefixlen))); } |
1da177e4c Linux-2.6.12-rc2 |
785 |
static __inline__ |
6281dcc94 net: Make flowi p... |
786 |
__be16 xfrm_flowi_sport(const struct flowi *fl, const union flowi_uli *uli) |
1da177e4c Linux-2.6.12-rc2 |
787 |
{ |
f9d07e41f [XFRM]: xfrm_flow... |
788 |
__be16 port; |
1d28f42c1 net: Put flowi_* ... |
789 |
switch(fl->flowi_proto) { |
1da177e4c Linux-2.6.12-rc2 |
790 791 |
case IPPROTO_TCP: case IPPROTO_UDP: |
ba4e58eca [NET]: Supporting... |
792 |
case IPPROTO_UDPLITE: |
1da177e4c Linux-2.6.12-rc2 |
793 |
case IPPROTO_SCTP: |
6281dcc94 net: Make flowi p... |
794 |
port = uli->ports.sport; |
1da177e4c Linux-2.6.12-rc2 |
795 796 797 |
break; case IPPROTO_ICMP: case IPPROTO_ICMPV6: |
6281dcc94 net: Make flowi p... |
798 |
port = htons(uli->icmpt.type); |
1da177e4c Linux-2.6.12-rc2 |
799 |
break; |
2ce4272a6 [IPV6] MIP6: Tran... |
800 |
case IPPROTO_MH: |
6281dcc94 net: Make flowi p... |
801 |
port = htons(uli->mht.type); |
2ce4272a6 [IPV6] MIP6: Tran... |
802 |
break; |
cc9ff19da xfrm: use gre key... |
803 |
case IPPROTO_GRE: |
6281dcc94 net: Make flowi p... |
804 |
port = htons(ntohl(uli->gre_key) >> 16); |
cc9ff19da xfrm: use gre key... |
805 |
break; |
1da177e4c Linux-2.6.12-rc2 |
806 807 808 809 810 811 812 |
default: port = 0; /*XXX*/ } return port; } static __inline__ |
6281dcc94 net: Make flowi p... |
813 |
__be16 xfrm_flowi_dport(const struct flowi *fl, const union flowi_uli *uli) |
1da177e4c Linux-2.6.12-rc2 |
814 |
{ |
f9d07e41f [XFRM]: xfrm_flow... |
815 |
__be16 port; |
1d28f42c1 net: Put flowi_* ... |
816 |
switch(fl->flowi_proto) { |
1da177e4c Linux-2.6.12-rc2 |
817 818 |
case IPPROTO_TCP: case IPPROTO_UDP: |
ba4e58eca [NET]: Supporting... |
819 |
case IPPROTO_UDPLITE: |
1da177e4c Linux-2.6.12-rc2 |
820 |
case IPPROTO_SCTP: |
6281dcc94 net: Make flowi p... |
821 |
port = uli->ports.dport; |
1da177e4c Linux-2.6.12-rc2 |
822 823 824 |
break; case IPPROTO_ICMP: case IPPROTO_ICMPV6: |
6281dcc94 net: Make flowi p... |
825 |
port = htons(uli->icmpt.code); |
1da177e4c Linux-2.6.12-rc2 |
826 |
break; |
cc9ff19da xfrm: use gre key... |
827 |
case IPPROTO_GRE: |
6281dcc94 net: Make flowi p... |
828 |
port = htons(ntohl(uli->gre_key) & 0xffff); |
cc9ff19da xfrm: use gre key... |
829 |
break; |
1da177e4c Linux-2.6.12-rc2 |
830 831 832 833 834 |
default: port = 0; /*XXX*/ } return port; } |
200ce96e5 xfrm: Const'ify s... |
835 |
extern int xfrm_selector_match(const struct xfrm_selector *sel, |
e1ad2ab2c xfrm: Mark flowi ... |
836 |
const struct flowi *fl, |
776810217 [XFRM]: uninline ... |
837 |
unsigned short family); |
1da177e4c Linux-2.6.12-rc2 |
838 |
|
df71837d5 [LSM-IPSec]: Secu... |
839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 |
#ifdef CONFIG_SECURITY_NETWORK_XFRM /* If neither has a context --> match * Otherwise, both must have a context and the sids, doi, alg must match */ static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ctx *s2) { return ((!s1 && !s2) || (s1 && s2 && (s1->ctx_sid == s2->ctx_sid) && (s1->ctx_doi == s2->ctx_doi) && (s1->ctx_alg == s2->ctx_alg))); } #else static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ctx *s2) { return 1; } #endif |
1da177e4c Linux-2.6.12-rc2 |
857 858 859 860 861 862 863 864 865 866 867 |
/* A struct encoding bundle of transformations to apply to some set of flow. * * dst->child points to the next element of bundle. * dst->xfrm points to an instanse of transformer. * * Due to unfortunate limitations of current routing cache, which we * have no time to fix, it mirrors struct rtable and bound to the same * routing key, including saddr,daddr. However, we can have many of * bundles differing by session id. All the bundles grow from a parent * policy rule. */ |
fd2c3ef76 net: cleanup incl... |
868 |
struct xfrm_dst { |
1da177e4c Linux-2.6.12-rc2 |
869 |
union { |
1da177e4c Linux-2.6.12-rc2 |
870 871 872 873 874 |
struct dst_entry dst; struct rtable rt; struct rt6_info rt6; } u; struct dst_entry *route; |
80c802f30 xfrm: cache bundl... |
875 876 877 |
struct flow_cache_object flo; struct xfrm_policy *pols[XFRM_POLICY_TYPE_MAX]; int num_pols, num_xfrms; |
157bfc250 [XFRM]: Restrict ... |
878 879 880 881 |
#ifdef CONFIG_XFRM_SUB_POLICY struct flowi *origin; struct xfrm_selector *partner; #endif |
80c802f30 xfrm: cache bundl... |
882 883 |
u32 xfrm_genid; u32 policy_genid; |
1da177e4c Linux-2.6.12-rc2 |
884 885 |
u32 route_mtu_cached; u32 child_mtu_cached; |
92d63decc From: Kazunori Mi... |
886 887 |
u32 route_cookie; u32 path_cookie; |
1da177e4c Linux-2.6.12-rc2 |
888 |
}; |
def8b4faf net: reduce struc... |
889 |
#ifdef CONFIG_XFRM |
aabc9761b [IPSEC]: Store id... |
890 891 |
static inline void xfrm_dst_destroy(struct xfrm_dst *xdst) { |
80c802f30 xfrm: cache bundl... |
892 |
xfrm_pols_put(xdst->pols, xdst->num_pols); |
aabc9761b [IPSEC]: Store id... |
893 894 895 |
dst_release(xdst->route); if (likely(xdst->u.dst.xfrm)) xfrm_state_put(xdst->u.dst.xfrm); |
157bfc250 [XFRM]: Restrict ... |
896 897 898 899 900 901 |
#ifdef CONFIG_XFRM_SUB_POLICY kfree(xdst->origin); xdst->origin = NULL; kfree(xdst->partner); xdst->partner = NULL; #endif |
aabc9761b [IPSEC]: Store id... |
902 |
} |
def8b4faf net: reduce struc... |
903 |
#endif |
aabc9761b [IPSEC]: Store id... |
904 905 |
extern void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev); |
fd2c3ef76 net: cleanup incl... |
906 |
struct sec_path { |
1da177e4c Linux-2.6.12-rc2 |
907 908 |
atomic_t refcnt; int len; |
dbe5b4aaa [IPSEC]: Kill unu... |
909 |
struct xfrm_state *xvec[XFRM_MAX_DEPTH]; |
1da177e4c Linux-2.6.12-rc2 |
910 |
}; |
990078afb Disable rp_filter... |
911 912 913 914 915 916 917 918 |
static inline int secpath_exists(struct sk_buff *skb) { #ifdef CONFIG_XFRM return skb->sp != NULL; #else return 0; #endif } |
1da177e4c Linux-2.6.12-rc2 |
919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 |
static inline struct sec_path * secpath_get(struct sec_path *sp) { if (sp) atomic_inc(&sp->refcnt); return sp; } extern void __secpath_destroy(struct sec_path *sp); static inline void secpath_put(struct sec_path *sp) { if (sp && atomic_dec_and_test(&sp->refcnt)) __secpath_destroy(sp); } extern struct sec_path *secpath_dup(struct sec_path *src); static inline void secpath_reset(struct sk_buff *skb) { #ifdef CONFIG_XFRM secpath_put(skb->sp); skb->sp = NULL; #endif } static inline int |
6cc329610 xfrm: Const'ify a... |
948 |
xfrm_addr_any(const xfrm_address_t *addr, unsigned short family) |
a1e59abf8 [XFRM]: Fix wildc... |
949 950 951 952 953 954 955 956 957 958 959 |
{ switch (family) { case AF_INET: return addr->a4 == 0; case AF_INET6: return ipv6_addr_any((struct in6_addr *)&addr->a6); } return 0; } static inline int |
21eddb5c1 xfrm: Const'ify x... |
960 |
__xfrm4_state_addr_cmp(const struct xfrm_tmpl *tmpl, const struct xfrm_state *x) |
1da177e4c Linux-2.6.12-rc2 |
961 962 963 964 965 966 |
{ return (tmpl->saddr.a4 && tmpl->saddr.a4 != x->props.saddr.a4); } static inline int |
21eddb5c1 xfrm: Const'ify x... |
967 |
__xfrm6_state_addr_cmp(const struct xfrm_tmpl *tmpl, const struct xfrm_state *x) |
1da177e4c Linux-2.6.12-rc2 |
968 969 970 971 972 973 |
{ return (!ipv6_addr_any((struct in6_addr*)&tmpl->saddr) && ipv6_addr_cmp((struct in6_addr *)&tmpl->saddr, (struct in6_addr*)&x->props.saddr)); } static inline int |
21eddb5c1 xfrm: Const'ify x... |
974 |
xfrm_state_addr_cmp(const struct xfrm_tmpl *tmpl, const struct xfrm_state *x, unsigned short family) |
1da177e4c Linux-2.6.12-rc2 |
975 976 977 978 979 980 981 982 983 984 985 |
{ switch (family) { case AF_INET: return __xfrm4_state_addr_cmp(tmpl, x); case AF_INET6: return __xfrm6_state_addr_cmp(tmpl, x); } return !0; } #ifdef CONFIG_XFRM |
1da177e4c Linux-2.6.12-rc2 |
986 |
extern int __xfrm_policy_check(struct sock *, int dir, struct sk_buff *skb, unsigned short family); |
d5422efe6 [IPSEC]: Added xf... |
987 988 989 |
static inline int __xfrm_policy_check2(struct sock *sk, int dir, struct sk_buff *skb, unsigned int family, int reverse) |
1da177e4c Linux-2.6.12-rc2 |
990 |
{ |
f6e1e25d7 netns xfrm: xfrm_... |
991 |
struct net *net = dev_net(skb->dev); |
d5422efe6 [IPSEC]: Added xf... |
992 |
int ndir = dir | (reverse ? XFRM_POLICY_MASK + 1 : 0); |
1da177e4c Linux-2.6.12-rc2 |
993 |
if (sk && sk->sk_policy[XFRM_POLICY_IN]) |
d5422efe6 [IPSEC]: Added xf... |
994 |
return __xfrm_policy_check(sk, ndir, skb, family); |
4e81bb833 [XFRM] POLICY: su... |
995 |
|
f6e1e25d7 netns xfrm: xfrm_... |
996 |
return (!net->xfrm.policy_count[dir] && !skb->sp) || |
adf30907d net: skb->dst acc... |
997 |
(skb_dst(skb)->flags & DST_NOPOLICY) || |
d5422efe6 [IPSEC]: Added xf... |
998 999 1000 1001 1002 1003 |
__xfrm_policy_check(sk, ndir, skb, family); } static inline int xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb, unsigned short family) { return __xfrm_policy_check2(sk, dir, skb, family, 0); |
1da177e4c Linux-2.6.12-rc2 |
1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 |
} static inline int xfrm4_policy_check(struct sock *sk, int dir, struct sk_buff *skb) { return xfrm_policy_check(sk, dir, skb, AF_INET); } static inline int xfrm6_policy_check(struct sock *sk, int dir, struct sk_buff *skb) { return xfrm_policy_check(sk, dir, skb, AF_INET6); } |
d5422efe6 [IPSEC]: Added xf... |
1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 |
static inline int xfrm4_policy_check_reverse(struct sock *sk, int dir, struct sk_buff *skb) { return __xfrm_policy_check2(sk, dir, skb, AF_INET, 1); } static inline int xfrm6_policy_check_reverse(struct sock *sk, int dir, struct sk_buff *skb) { return __xfrm_policy_check2(sk, dir, skb, AF_INET6, 1); } extern int __xfrm_decode_session(struct sk_buff *skb, struct flowi *fl, unsigned int family, int reverse); static inline int xfrm_decode_session(struct sk_buff *skb, struct flowi *fl, unsigned int family) { return __xfrm_decode_session(skb, fl, family, 0); } static inline int xfrm_decode_session_reverse(struct sk_buff *skb, struct flowi *fl, unsigned int family) { return __xfrm_decode_session(skb, fl, family, 1); } |
1da177e4c Linux-2.6.12-rc2 |
1042 1043 1044 1045 |
extern int __xfrm_route_forward(struct sk_buff *skb, unsigned short family); static inline int xfrm_route_forward(struct sk_buff *skb, unsigned short family) { |
99a66657b netns xfrm: xfrm_... |
1046 1047 1048 |
struct net *net = dev_net(skb->dev); return !net->xfrm.policy_count[XFRM_POLICY_OUT] || |
adf30907d net: skb->dst acc... |
1049 |
(skb_dst(skb)->flags & DST_NOXFRM) || |
1da177e4c Linux-2.6.12-rc2 |
1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 |
__xfrm_route_forward(skb, family); } static inline int xfrm4_route_forward(struct sk_buff *skb) { return xfrm_route_forward(skb, AF_INET); } static inline int xfrm6_route_forward(struct sk_buff *skb) { return xfrm_route_forward(skb, AF_INET6); } extern int __xfrm_sk_clone_policy(struct sock *sk); static inline int xfrm_sk_clone_policy(struct sock *sk) { if (unlikely(sk->sk_policy[0] || sk->sk_policy[1])) return __xfrm_sk_clone_policy(sk); return 0; } |
4666faab0 [IPSEC] Kill spur... |
1071 |
extern int xfrm_policy_delete(struct xfrm_policy *pol, int dir); |
1da177e4c Linux-2.6.12-rc2 |
1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 |
static inline void xfrm_sk_free_policy(struct sock *sk) { if (unlikely(sk->sk_policy[0] != NULL)) { xfrm_policy_delete(sk->sk_policy[0], XFRM_POLICY_MAX); sk->sk_policy[0] = NULL; } if (unlikely(sk->sk_policy[1] != NULL)) { xfrm_policy_delete(sk->sk_policy[1], XFRM_POLICY_MAX+1); sk->sk_policy[1] = NULL; } } #else static inline void xfrm_sk_free_policy(struct sock *sk) {} static inline int xfrm_sk_clone_policy(struct sock *sk) { return 0; } static inline int xfrm6_route_forward(struct sk_buff *skb) { return 1; } static inline int xfrm4_route_forward(struct sk_buff *skb) { return 1; } static inline int xfrm6_policy_check(struct sock *sk, int dir, struct sk_buff *skb) { return 1; } static inline int xfrm4_policy_check(struct sock *sk, int dir, struct sk_buff *skb) { return 1; } static inline int xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb, unsigned short family) { return 1; } |
d5422efe6 [IPSEC]: Added xf... |
1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 |
static inline int xfrm_decode_session_reverse(struct sk_buff *skb, struct flowi *fl, unsigned int family) { return -ENOSYS; } static inline int xfrm4_policy_check_reverse(struct sock *sk, int dir, struct sk_buff *skb) { return 1; } static inline int xfrm6_policy_check_reverse(struct sock *sk, int dir, struct sk_buff *skb) { return 1; } |
1da177e4c Linux-2.6.12-rc2 |
1119 1120 1121 |
#endif static __inline__ |
e8a4e3771 xfrm: Mark flowi ... |
1122 |
xfrm_address_t *xfrm_flowi_daddr(const struct flowi *fl, unsigned short family) |
1da177e4c Linux-2.6.12-rc2 |
1123 1124 1125 |
{ switch (family){ case AF_INET: |
7e1dc7b6f net: Use flowi4 a... |
1126 |
return (xfrm_address_t *)&fl->u.ip4.daddr; |
1da177e4c Linux-2.6.12-rc2 |
1127 |
case AF_INET6: |
7e1dc7b6f net: Use flowi4 a... |
1128 |
return (xfrm_address_t *)&fl->u.ip6.daddr; |
1da177e4c Linux-2.6.12-rc2 |
1129 1130 1131 1132 1133 |
} return NULL; } static __inline__ |
e8a4e3771 xfrm: Mark flowi ... |
1134 |
xfrm_address_t *xfrm_flowi_saddr(const struct flowi *fl, unsigned short family) |
1da177e4c Linux-2.6.12-rc2 |
1135 1136 1137 |
{ switch (family){ case AF_INET: |
7e1dc7b6f net: Use flowi4 a... |
1138 |
return (xfrm_address_t *)&fl->u.ip4.saddr; |
1da177e4c Linux-2.6.12-rc2 |
1139 |
case AF_INET6: |
7e1dc7b6f net: Use flowi4 a... |
1140 |
return (xfrm_address_t *)&fl->u.ip6.saddr; |
1da177e4c Linux-2.6.12-rc2 |
1141 1142 1143 |
} return NULL; } |
9bb182a70 [XFRM] MIP6: Fix ... |
1144 |
static __inline__ |
e8a4e3771 xfrm: Mark flowi ... |
1145 |
void xfrm_flowi_addr_get(const struct flowi *fl, |
9bb182a70 [XFRM] MIP6: Fix ... |
1146 1147 1148 1149 1150 |
xfrm_address_t *saddr, xfrm_address_t *daddr, unsigned short family) { switch(family) { case AF_INET: |
7e1dc7b6f net: Use flowi4 a... |
1151 1152 |
memcpy(&saddr->a4, &fl->u.ip4.saddr, sizeof(saddr->a4)); memcpy(&daddr->a4, &fl->u.ip4.daddr, sizeof(daddr->a4)); |
9bb182a70 [XFRM] MIP6: Fix ... |
1153 1154 |
break; case AF_INET6: |
4e3fd7a06 net: remove ipv6_... |
1155 1156 |
*(struct in6_addr *)saddr->a6 = fl->u.ip6.saddr; *(struct in6_addr *)daddr->a6 = fl->u.ip6.daddr; |
9bb182a70 [XFRM] MIP6: Fix ... |
1157 1158 1159 |
break; } } |
1da177e4c Linux-2.6.12-rc2 |
1160 |
static __inline__ int |
f8848067c xfrm: Const'ify p... |
1161 1162 |
__xfrm4_state_addr_check(const struct xfrm_state *x, const xfrm_address_t *daddr, const xfrm_address_t *saddr) |
1da177e4c Linux-2.6.12-rc2 |
1163 1164 1165 1166 1167 1168 1169 1170 |
{ if (daddr->a4 == x->id.daddr.a4 && (saddr->a4 == x->props.saddr.a4 || !saddr->a4 || !x->props.saddr.a4)) return 1; return 0; } static __inline__ int |
f8848067c xfrm: Const'ify p... |
1171 1172 |
__xfrm6_state_addr_check(const struct xfrm_state *x, const xfrm_address_t *daddr, const xfrm_address_t *saddr) |
1da177e4c Linux-2.6.12-rc2 |
1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 |
{ if (!ipv6_addr_cmp((struct in6_addr *)daddr, (struct in6_addr *)&x->id.daddr) && (!ipv6_addr_cmp((struct in6_addr *)saddr, (struct in6_addr *)&x->props.saddr)|| ipv6_addr_any((struct in6_addr *)saddr) || ipv6_addr_any((struct in6_addr *)&x->props.saddr))) return 1; return 0; } static __inline__ int |
f8848067c xfrm: Const'ify p... |
1183 1184 |
xfrm_state_addr_check(const struct xfrm_state *x, const xfrm_address_t *daddr, const xfrm_address_t *saddr, |
1da177e4c Linux-2.6.12-rc2 |
1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 |
unsigned short family) { switch (family) { case AF_INET: return __xfrm4_state_addr_check(x, daddr, saddr); case AF_INET6: return __xfrm6_state_addr_check(x, daddr, saddr); } return 0; } |
e53820de0 [XFRM] IPV6: Rest... |
1195 |
static __inline__ int |
f8848067c xfrm: Const'ify p... |
1196 |
xfrm_state_addr_flow_check(const struct xfrm_state *x, const struct flowi *fl, |
e53820de0 [XFRM] IPV6: Rest... |
1197 1198 1199 1200 1201 |
unsigned short family) { switch (family) { case AF_INET: return __xfrm4_state_addr_check(x, |
7e1dc7b6f net: Use flowi4 a... |
1202 1203 |
(const xfrm_address_t *)&fl->u.ip4.daddr, (const xfrm_address_t *)&fl->u.ip4.saddr); |
e53820de0 [XFRM] IPV6: Rest... |
1204 1205 |
case AF_INET6: return __xfrm6_state_addr_check(x, |
7e1dc7b6f net: Use flowi4 a... |
1206 1207 |
(const xfrm_address_t *)&fl->u.ip6.daddr, (const xfrm_address_t *)&fl->u.ip6.saddr); |
e53820de0 [XFRM] IPV6: Rest... |
1208 1209 1210 |
} return 0; } |
f8848067c xfrm: Const'ify p... |
1211 |
static inline int xfrm_state_kern(const struct xfrm_state *x) |
1da177e4c Linux-2.6.12-rc2 |
1212 1213 1214 |
{ return atomic_read(&x->tunnel_users); } |
5794708f1 [XFRM]: Introduce... |
1215 1216 |
static inline int xfrm_id_proto_match(u8 proto, u8 userproto) { |
dc00a5256 [XFRM] STATE: All... |
1217 1218 1219 1220 |
return (!userproto || proto == userproto || (userproto == IPSEC_PROTO_ANY && (proto == IPPROTO_AH || proto == IPPROTO_ESP || proto == IPPROTO_COMP))); |
5794708f1 [XFRM]: Introduce... |
1221 |
} |
1da177e4c Linux-2.6.12-rc2 |
1222 1223 1224 |
/* * xfrm algorithm information */ |
1a6509d99 [IPSEC]: Add supp... |
1225 1226 1227 |
struct xfrm_algo_aead_info { u16 icv_truncbits; }; |
1da177e4c Linux-2.6.12-rc2 |
1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 |
struct xfrm_algo_auth_info { u16 icv_truncbits; u16 icv_fullbits; }; struct xfrm_algo_encr_info { u16 blockbits; u16 defkeybits; }; struct xfrm_algo_comp_info { u16 threshold; }; struct xfrm_algo_desc { char *name; |
04ff12609 [IPSEC]: Add comp... |
1244 |
char *compat; |
1da177e4c Linux-2.6.12-rc2 |
1245 1246 |
u8 available:1; union { |
1a6509d99 [IPSEC]: Add supp... |
1247 |
struct xfrm_algo_aead_info aead; |
1da177e4c Linux-2.6.12-rc2 |
1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 |
struct xfrm_algo_auth_info auth; struct xfrm_algo_encr_info encr; struct xfrm_algo_comp_info comp; } uinfo; struct sadb_alg desc; }; /* XFRM tunnel handlers. */ struct xfrm_tunnel { int (*handler)(struct sk_buff *skb); |
a63374631 xfrm: use proper ... |
1258 |
int (*err_handler)(struct sk_buff *skb, u32 info); |
d2acc3479 [INET]: Introduce... |
1259 |
|
b33eab084 tunnels: add __rc... |
1260 |
struct xfrm_tunnel __rcu *next; |
d2acc3479 [INET]: Introduce... |
1261 |
int priority; |
1da177e4c Linux-2.6.12-rc2 |
1262 1263 1264 |
}; struct xfrm6_tunnel { |
d2acc3479 [INET]: Introduce... |
1265 1266 |
int (*handler)(struct sk_buff *skb); int (*err_handler)(struct sk_buff *skb, struct inet6_skb_parm *opt, |
d5fdd6bab ipv6: Use correct... |
1267 |
u8 type, u8 code, int offset, __be32 info); |
6f0bcf152 tunnels: add _rcu... |
1268 |
struct xfrm6_tunnel __rcu *next; |
d2acc3479 [INET]: Introduce... |
1269 |
int priority; |
1da177e4c Linux-2.6.12-rc2 |
1270 1271 1272 |
}; extern void xfrm_init(void); |
a33bc5c15 xfrm: select sane... |
1273 |
extern void xfrm4_init(int rt_hash_size); |
d62ddc21b netns xfrm: add n... |
1274 1275 |
extern int xfrm_state_init(struct net *net); extern void xfrm_state_fini(struct net *net); |
1da177e4c Linux-2.6.12-rc2 |
1276 |
extern void xfrm4_state_init(void); |
c35b7e72c [IPV6]: remove if... |
1277 1278 1279 |
#ifdef CONFIG_XFRM extern int xfrm6_init(void); extern void xfrm6_fini(void); |
0013cabab [IPV6]: Make xfrm... |
1280 |
extern int xfrm6_state_init(void); |
1da177e4c Linux-2.6.12-rc2 |
1281 |
extern void xfrm6_state_fini(void); |
c35b7e72c [IPV6]: remove if... |
1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 |
#else static inline int xfrm6_init(void) { return 0; } static inline void xfrm6_fini(void) { ; } #endif |
1da177e4c Linux-2.6.12-rc2 |
1292 |
|
558f82ef6 [XFRM]: Define pa... |
1293 |
#ifdef CONFIG_XFRM_STATISTICS |
c68cd1a01 netns xfrm: /proc... |
1294 1295 |
extern int xfrm_proc_init(struct net *net); extern void xfrm_proc_fini(struct net *net); |
558f82ef6 [XFRM]: Define pa... |
1296 |
#endif |
b27aeadb5 netns xfrm: per-n... |
1297 1298 1299 1300 1301 1302 1303 1304 |
extern int xfrm_sysctl_init(struct net *net); #ifdef CONFIG_SYSCTL extern void xfrm_sysctl_fini(struct net *net); #else static inline void xfrm_sysctl_fini(struct net *net) { } #endif |
5c1824587 ipsec: Fix xfrm_s... |
1305 |
extern void xfrm_state_walk_init(struct xfrm_state_walk *walk, u8 proto); |
284fa7da3 netns xfrm: state... |
1306 |
extern int xfrm_state_walk(struct net *net, struct xfrm_state_walk *walk, |
4c563f766 [XFRM]: Speed up ... |
1307 |
int (*func)(struct xfrm_state *, int, void*), void *); |
abb81c4f3 ipsec: Use RCU-li... |
1308 |
extern void xfrm_state_walk_done(struct xfrm_state_walk *walk); |
673c09be4 netns xfrm: add s... |
1309 |
extern struct xfrm_state *xfrm_state_alloc(struct net *net); |
33765d060 xfrm: Const'ify x... |
1310 1311 |
extern struct xfrm_state *xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr, |
b520e9f61 xfrm: Mark flowi ... |
1312 1313 |
const struct flowi *fl, struct xfrm_tmpl *tmpl, |
1da177e4c Linux-2.6.12-rc2 |
1314 1315 |
struct xfrm_policy *pol, int *err, unsigned short family); |
bd55775c8 xfrm: SA lookups ... |
1316 |
extern struct xfrm_state *xfrm_stateonly_find(struct net *net, u32 mark, |
5447c5e40 netns xfrm: findi... |
1317 |
xfrm_address_t *daddr, |
628529b6e [XFRM] Introduce ... |
1318 1319 1320 |
xfrm_address_t *saddr, unsigned short family, u8 mode, u8 proto, u32 reqid); |
1da177e4c Linux-2.6.12-rc2 |
1321 1322 1323 1324 |
extern int xfrm_state_check_expire(struct xfrm_state *x); extern void xfrm_state_insert(struct xfrm_state *x); extern int xfrm_state_add(struct xfrm_state *x); extern int xfrm_state_update(struct xfrm_state *x); |
bd55775c8 xfrm: SA lookups ... |
1325 |
extern struct xfrm_state *xfrm_state_lookup(struct net *net, u32 mark, |
a70486f0e xfrm: Pass const ... |
1326 |
const xfrm_address_t *daddr, __be32 spi, |
bd55775c8 xfrm: SA lookups ... |
1327 1328 |
u8 proto, unsigned short family); extern struct xfrm_state *xfrm_state_lookup_byaddr(struct net *net, u32 mark, |
a70486f0e xfrm: Pass const ... |
1329 1330 |
const xfrm_address_t *daddr, const xfrm_address_t *saddr, |
bd55775c8 xfrm: SA lookups ... |
1331 1332 |
u8 proto, unsigned short family); |
41a49cc3c [XFRM]: Add sorti... |
1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 |
#ifdef CONFIG_XFRM_SUB_POLICY extern int xfrm_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n, unsigned short family); extern int xfrm_state_sort(struct xfrm_state **dst, struct xfrm_state **src, int n, unsigned short family); #else static inline int xfrm_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n, unsigned short family) { return -ENOSYS; } static inline int xfrm_state_sort(struct xfrm_state **dst, struct xfrm_state **src, int n, unsigned short family) { return -ENOSYS; } #endif |
af11e3160 [XFRM] SAD info T... |
1351 1352 1353 1354 1355 1356 |
struct xfrmk_sadinfo { u32 sadhcnt; /* current hash bkts */ u32 sadhmcnt; /* max allowed hash bkts */ u32 sadcnt; /* current running count */ }; |
5a6d34162 [XFRM] SPD info T... |
1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 |
struct xfrmk_spdinfo { u32 incnt; u32 outcnt; u32 fwdcnt; u32 inscnt; u32 outscnt; u32 fwdscnt; u32 spdhcnt; u32 spdhmcnt; }; |
bd55775c8 xfrm: SA lookups ... |
1367 1368 |
extern struct xfrm_state *xfrm_find_acq_byseq(struct net *net, u32 mark, u32 seq); |
26b15dad9 [IPSEC] Add compl... |
1369 |
extern int xfrm_state_delete(struct xfrm_state *x); |
0e6024519 netns xfrm: state... |
1370 |
extern int xfrm_state_flush(struct net *net, u8 proto, struct xfrm_audit *audit_info); |
e071041be netns xfrm: fix "... |
1371 1372 |
extern void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si); extern void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si); |
2cd084678 xfrm: Add support... |
1373 |
extern u32 xfrm_replay_seqhi(struct xfrm_state *x, __be32 net_seq); |
9fdc4883d xfrm: Move IPsec ... |
1374 |
extern int xfrm_init_replay(struct xfrm_state *x); |
1da177e4c Linux-2.6.12-rc2 |
1375 |
extern int xfrm_state_mtu(struct xfrm_state *x, int mtu); |
a454f0cce xfrm: Fix initial... |
1376 |
extern int __xfrm_init_state(struct xfrm_state *x, bool init_replay); |
72cb6962a [IPSEC]: Add xfrm... |
1377 |
extern int xfrm_init_state(struct xfrm_state *x); |
227620e29 [IPSEC]: Separate... |
1378 |
extern int xfrm_prepare_input(struct xfrm_state *x, struct sk_buff *skb); |
716062fd4 [IPSEC]: Merge mo... |
1379 1380 |
extern int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type); |
1bf06cd2e [IPSEC]: Add asyn... |
1381 |
extern int xfrm_input_resume(struct sk_buff *skb, int nexthdr); |
c6581a457 [IPSEC]: Add asyn... |
1382 |
extern int xfrm_output_resume(struct sk_buff *skb, int err); |
406ef77c8 [IPSEC]: Move com... |
1383 |
extern int xfrm_output(struct sk_buff *skb); |
df9dcb458 [IPSEC]: Fix inte... |
1384 |
extern int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb); |
36cf9acf9 [IPSEC]: Separate... |
1385 |
extern int xfrm4_extract_header(struct sk_buff *skb); |
227620e29 [IPSEC]: Separate... |
1386 |
extern int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb); |
c4541b41c [IPSEC]: Move tun... |
1387 1388 |
extern int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type); |
716062fd4 [IPSEC]: Merge mo... |
1389 |
extern int xfrm4_transport_finish(struct sk_buff *skb, int async); |
1da177e4c Linux-2.6.12-rc2 |
1390 |
extern int xfrm4_rcv(struct sk_buff *skb); |
c4541b41c [IPSEC]: Move tun... |
1391 1392 1393 1394 1395 |
static inline int xfrm4_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi) { return xfrm4_rcv_encap(skb, nexthdr, spi, 0); } |
36cf9acf9 [IPSEC]: Separate... |
1396 1397 |
extern int xfrm4_extract_output(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb); |
1da177e4c Linux-2.6.12-rc2 |
1398 |
extern int xfrm4_output(struct sk_buff *skb); |
43a4dea4c xfrm: Assign the ... |
1399 |
extern int xfrm4_output_finish(struct sk_buff *skb); |
c0d56408e [IPSEC]: Changing... |
1400 1401 |
extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family); extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family); |
36cf9acf9 [IPSEC]: Separate... |
1402 |
extern int xfrm6_extract_header(struct sk_buff *skb); |
227620e29 [IPSEC]: Separate... |
1403 |
extern int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb); |
33b5ecb8f [IPSEC]: Get next... |
1404 |
extern int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi); |
716062fd4 [IPSEC]: Merge mo... |
1405 |
extern int xfrm6_transport_finish(struct sk_buff *skb, int async); |
e5bbef20e [IPV6]: Replace s... |
1406 |
extern int xfrm6_rcv(struct sk_buff *skb); |
fbd9a5b47 [XFRM] STATE: Com... |
1407 1408 |
extern int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr, xfrm_address_t *saddr, u8 proto); |
73d605d1a [IPSEC]: changing... |
1409 1410 |
extern int xfrm6_tunnel_register(struct xfrm6_tunnel *handler, unsigned short family); extern int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler, unsigned short family); |
a16647739 netns xfrm: xfrm6... |
1411 |
extern __be32 xfrm6_tunnel_alloc_spi(struct net *net, xfrm_address_t *saddr); |
b71d1d426 inet: constify ip... |
1412 |
extern __be32 xfrm6_tunnel_spi_lookup(struct net *net, const xfrm_address_t *saddr); |
36cf9acf9 [IPSEC]: Separate... |
1413 1414 |
extern int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb); |
1da177e4c Linux-2.6.12-rc2 |
1415 |
extern int xfrm6_output(struct sk_buff *skb); |
43a4dea4c xfrm: Assign the ... |
1416 |
extern int xfrm6_output_finish(struct sk_buff *skb); |
aee5adb43 [XFRM] STATE: Add... |
1417 1418 |
extern int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb, u8 **prevhdr); |
1da177e4c Linux-2.6.12-rc2 |
1419 1420 |
#ifdef CONFIG_XFRM |
067b207b2 [UDP]: Cleanup UD... |
1421 |
extern int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb); |
1da177e4c Linux-2.6.12-rc2 |
1422 |
extern int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen); |
1da177e4c Linux-2.6.12-rc2 |
1423 1424 1425 1426 1427 |
#else static inline int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen) { return -ENOPROTOOPT; } |
067b207b2 [UDP]: Cleanup UD... |
1428 |
static inline int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb) |
1da177e4c Linux-2.6.12-rc2 |
1429 1430 1431 1432 1433 |
{ /* should not happen */ kfree_skb(skb); return 0; } |
1da177e4c Linux-2.6.12-rc2 |
1434 |
#endif |
0331b1f38 netns xfrm: add s... |
1435 |
struct xfrm_policy *xfrm_policy_alloc(struct net *net, gfp_t gfp); |
4c563f766 [XFRM]: Speed up ... |
1436 |
|
12a169e7d ipsec: Put dumper... |
1437 |
extern void xfrm_policy_walk_init(struct xfrm_policy_walk *walk, u8 type); |
cdcbca7c1 netns xfrm: polic... |
1438 |
extern int xfrm_policy_walk(struct net *net, struct xfrm_policy_walk *walk, |
4c563f766 [XFRM]: Speed up ... |
1439 |
int (*func)(struct xfrm_policy *, int, int, void*), void *); |
12a169e7d ipsec: Put dumper... |
1440 |
extern void xfrm_policy_walk_done(struct xfrm_policy_walk *walk); |
1da177e4c Linux-2.6.12-rc2 |
1441 |
int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl); |
8ca2e93b5 xfrm: SP lookups ... |
1442 1443 |
struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark, u8 type, int dir, |
4e81bb833 [XFRM] POLICY: su... |
1444 |
struct xfrm_selector *sel, |
ef41aaa0b [IPSEC]: xfrm_pol... |
1445 1446 |
struct xfrm_sec_ctx *ctx, int delete, int *err); |
8ca2e93b5 xfrm: SP lookups ... |
1447 |
struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8, int dir, u32 id, int delete, int *err); |
33ffbbd52 netns xfrm: polic... |
1448 |
int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info); |
1da177e4c Linux-2.6.12-rc2 |
1449 |
u32 xfrm_get_acqseq(void); |
658b219e9 [IPSEC]: Move com... |
1450 |
extern int xfrm_alloc_spi(struct xfrm_state *x, u32 minspi, u32 maxspi); |
bd55775c8 xfrm: SA lookups ... |
1451 1452 |
struct xfrm_state *xfrm_find_acq(struct net *net, struct xfrm_mark *mark, u8 mode, u32 reqid, u8 proto, |
a70486f0e xfrm: Pass const ... |
1453 1454 |
const xfrm_address_t *daddr, const xfrm_address_t *saddr, int create, |
bd55775c8 xfrm: SA lookups ... |
1455 |
unsigned short family); |
1da177e4c Linux-2.6.12-rc2 |
1456 |
extern int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol); |
1da177e4c Linux-2.6.12-rc2 |
1457 |
|
80c9abaab [XFRM]: Extension... |
1458 |
#ifdef CONFIG_XFRM_MIGRATE |
183cad127 xfrm: Const'ify p... |
1459 1460 1461 |
extern int km_migrate(const struct xfrm_selector *sel, u8 dir, u8 type, const struct xfrm_migrate *m, int num_bundles, const struct xfrm_kmaddress *k); |
80c9abaab [XFRM]: Extension... |
1462 1463 1464 |
extern struct xfrm_state * xfrm_migrate_state_find(struct xfrm_migrate *m); extern struct xfrm_state * xfrm_state_migrate(struct xfrm_state *x, struct xfrm_migrate *m); |
b4b7c0b38 xfrm: Const'ify s... |
1465 |
extern int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type, |
13c1d1893 xfrm: MIGRATE enh... |
1466 1467 |
struct xfrm_migrate *m, int num_bundles, struct xfrm_kmaddress *k); |
80c9abaab [XFRM]: Extension... |
1468 |
#endif |
5d36b1803 [XFRM]: annotate ... |
1469 |
extern int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport); |
6c5c8ca7f [IPSEC]: Sync ser... |
1470 |
extern void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 pid); |
db983c114 netns xfrm: KM re... |
1471 |
extern int km_report(struct net *net, u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr); |
1da177e4c Linux-2.6.12-rc2 |
1472 1473 |
extern void xfrm_input_init(void); |
6067b2bab [XFRM]: xfrm_pars... |
1474 |
extern int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 *seq); |
1da177e4c Linux-2.6.12-rc2 |
1475 1476 1477 1478 1479 1480 1481 1482 1483 |
extern void xfrm_probe_algs(void); extern int xfrm_count_auth_supported(void); extern int xfrm_count_enc_supported(void); extern struct xfrm_algo_desc *xfrm_aalg_get_byidx(unsigned int idx); extern struct xfrm_algo_desc *xfrm_ealg_get_byidx(unsigned int idx); extern struct xfrm_algo_desc *xfrm_aalg_get_byid(int alg_id); extern struct xfrm_algo_desc *xfrm_ealg_get_byid(int alg_id); extern struct xfrm_algo_desc *xfrm_calg_get_byid(int alg_id); |
6f2f19ed9 xfrm: Pass name a... |
1484 1485 1486 1487 |
extern struct xfrm_algo_desc *xfrm_aalg_get_byname(const char *name, int probe); extern struct xfrm_algo_desc *xfrm_ealg_get_byname(const char *name, int probe); extern struct xfrm_algo_desc *xfrm_calg_get_byname(const char *name, int probe); extern struct xfrm_algo_desc *xfrm_aead_get_byname(const char *name, int icv_len, |
1a6509d99 [IPSEC]: Add supp... |
1488 |
int probe); |
1da177e4c Linux-2.6.12-rc2 |
1489 |
|
07d4ee583 [IPSEC]: Use HMAC... |
1490 |
struct hash_desc; |
9409f38a0 [IPSEC]: Move lin... |
1491 |
struct scatterlist; |
07d4ee583 [IPSEC]: Use HMAC... |
1492 1493 |
typedef int (icv_update_fn_t)(struct hash_desc *, struct scatterlist *, unsigned int); |
1da177e4c Linux-2.6.12-rc2 |
1494 |
|
ff6acd168 xfrm: Const'ify a... |
1495 1496 |
static inline int xfrm_addr_cmp(const xfrm_address_t *a, const xfrm_address_t *b, |
1da177e4c Linux-2.6.12-rc2 |
1497 1498 1499 1500 1501 |
int family) { switch (family) { default: case AF_INET: |
a63374631 xfrm: use proper ... |
1502 |
return (__force u32)a->a4 - (__force u32)b->a4; |
1da177e4c Linux-2.6.12-rc2 |
1503 |
case AF_INET6: |
b71d1d426 inet: constify ip... |
1504 1505 |
return ipv6_addr_cmp((const struct in6_addr *)a, (const struct in6_addr *)b); |
1da177e4c Linux-2.6.12-rc2 |
1506 1507 |
} } |
77d8d7a68 [IPSEC]: Document... |
1508 1509 1510 1511 |
static inline int xfrm_policy_id2dir(u32 index) { return index & 7; } |
a6483b790 netns xfrm: per-n... |
1512 1513 |
#ifdef CONFIG_XFRM static inline int xfrm_aevent_is_on(struct net *net) |
f8cd54884 [IPSEC]: Sync ser... |
1514 |
{ |
be33690d8 [XFRM]: Fix aeven... |
1515 1516 1517 1518 |
struct sock *nlsk; int ret = 0; rcu_read_lock(); |
a6483b790 netns xfrm: per-n... |
1519 |
nlsk = rcu_dereference(net->xfrm.nlsk); |
be33690d8 [XFRM]: Fix aeven... |
1520 1521 1522 1523 |
if (nlsk) ret = netlink_has_listeners(nlsk, XFRMNLGRP_AEVENTS); rcu_read_unlock(); return ret; |
f8cd54884 [IPSEC]: Sync ser... |
1524 |
} |
a6483b790 netns xfrm: per-n... |
1525 |
#endif |
f8cd54884 [IPSEC]: Sync ser... |
1526 |
|
851586218 xfrm: Pass const ... |
1527 |
static inline int xfrm_alg_len(const struct xfrm_algo *alg) |
0f99be0d1 [XFRM]: xfrm_algo... |
1528 1529 1530 |
{ return sizeof(*alg) + ((alg->alg_key_len + 7) / 8); } |
851586218 xfrm: Pass const ... |
1531 |
static inline int xfrm_alg_auth_len(const struct xfrm_algo_auth *alg) |
4447bb33f xfrm: Store aalg ... |
1532 1533 1534 |
{ return sizeof(*alg) + ((alg->alg_key_len + 7) / 8); } |
9736acf39 xfrm: Add basic i... |
1535 1536 1537 1538 |
static inline int xfrm_replay_state_esn_len(struct xfrm_replay_state_esn *replay_esn) { return sizeof(*replay_esn) + replay_esn->bmp_len * sizeof(__u32); } |
80c9abaab [XFRM]: Extension... |
1539 |
#ifdef CONFIG_XFRM_MIGRATE |
af2f464e3 xfrm: Assign esn ... |
1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 |
static inline int xfrm_replay_clone(struct xfrm_state *x, struct xfrm_state *orig) { x->replay_esn = kzalloc(xfrm_replay_state_esn_len(orig->replay_esn), GFP_KERNEL); if (!x->replay_esn) return -ENOMEM; x->replay_esn->bmp_len = orig->replay_esn->bmp_len; x->replay_esn->replay_window = orig->replay_esn->replay_window; x->preplay_esn = kmemdup(x->replay_esn, xfrm_replay_state_esn_len(x->replay_esn), GFP_KERNEL); if (!x->preplay_esn) { kfree(x->replay_esn); return -ENOMEM; } return 0; } |
80c9abaab [XFRM]: Extension... |
1561 1562 |
static inline struct xfrm_algo *xfrm_algo_clone(struct xfrm_algo *orig) { |
0f99be0d1 [XFRM]: xfrm_algo... |
1563 |
return kmemdup(orig, xfrm_alg_len(orig), GFP_KERNEL); |
80c9abaab [XFRM]: Extension... |
1564 |
} |
4447bb33f xfrm: Store aalg ... |
1565 1566 1567 1568 |
static inline struct xfrm_algo_auth *xfrm_algo_auth_clone(struct xfrm_algo_auth *orig) { return kmemdup(orig, xfrm_alg_auth_len(orig), GFP_KERNEL); } |
80c9abaab [XFRM]: Extension... |
1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 |
static inline void xfrm_states_put(struct xfrm_state **states, int n) { int i; for (i = 0; i < n; i++) xfrm_state_put(*(states + i)); } static inline void xfrm_states_delete(struct xfrm_state **states, int n) { int i; for (i = 0; i < n; i++) xfrm_state_delete(*(states + i)); } #endif |
f8cd54884 [IPSEC]: Sync ser... |
1583 |
|
def8b4faf net: reduce struc... |
1584 |
#ifdef CONFIG_XFRM |
005011211 [IPSEC]: Add xfrm... |
1585 1586 1587 1588 |
static inline struct xfrm_state *xfrm_input_state(struct sk_buff *skb) { return skb->sp->xvec[skb->sp->len - 1]; } |
def8b4faf net: reduce struc... |
1589 |
#endif |
005011211 [IPSEC]: Add xfrm... |
1590 |
|
bf825f81b xfrm: introduce b... |
1591 1592 1593 |
static inline int xfrm_mark_get(struct nlattr **attrs, struct xfrm_mark *m) { if (attrs[XFRMA_MARK]) |
4efd7e833 xfrm: fix XFRMA_M... |
1594 |
memcpy(m, nla_data(attrs[XFRMA_MARK]), sizeof(struct xfrm_mark)); |
bf825f81b xfrm: introduce b... |
1595 1596 1597 1598 1599 |
else m->v = m->m = 0; return m->v & m->m; } |
e3dfa389f xfrm: Pass const ... |
1600 |
static inline int xfrm_mark_put(struct sk_buff *skb, const struct xfrm_mark *m) |
bf825f81b xfrm: introduce b... |
1601 1602 1603 1604 1605 1606 1607 1608 |
{ if (m->m | m->v) NLA_PUT(skb, XFRMA_MARK, sizeof(struct xfrm_mark), m); return 0; nla_put_failure: return -1; } |
1da177e4c Linux-2.6.12-rc2 |
1609 |
#endif /* _NET_XFRM_H */ |