* transformer. */
const struct xfrm_type *type;
struct xfrm_mode *inner_mode;
+ struct xfrm_mode *inner_mode_iaf;
struct xfrm_mode *outer_mode;
/* Security context */
struct xfrm_state_afinfo {
unsigned int family;
unsigned int proto;
- unsigned int eth_proto;
+ __be16 eth_proto;
struct module *owner;
const struct xfrm_type *type_map[IPPROTO_MAX];
struct xfrm_mode *mode_map[XFRM_MODE_MAX];
extern int xfrm_register_mode(struct xfrm_mode *mode, int family);
extern int xfrm_unregister_mode(struct xfrm_mode *mode, int family);
+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;
+}
+
struct xfrm_tmpl
{
/* id in template is interpreted as:
/* May skip this transfomration if no SA is found */
__u8 optional;
+/* Skip aalgos/ealgos/calgos checks. */
+ __u8 allalgs;
+
/* Bit mask of algos allowed for acquisition */
__u32 aalgos;
__u32 ealgos;
__be16 id;
__be16 frag_off;
+ /* IP header length (excluding options or extension headers). */
+ u8 ihl;
+
/* TOS for IPv4, class for IPv6. */
u8 tos;
/* Protocol for IPv4, NH for IPv6. */
u8 protocol;
+ /* Option length for IPv4, zero for IPv6. */
+ u8 optlen;
+
/* Used by IPv6 only, zero for IPv4. */
u8 flow_lbl[3];
};
return NULL;
}
+static __inline__
+void xfrm_flowi_addr_get(struct flowi *fl,
+ xfrm_address_t *saddr, xfrm_address_t *daddr,
+ unsigned short family)
+{
+ switch(family) {
+ case AF_INET:
+ memcpy(&saddr->a4, &fl->fl4_src, sizeof(saddr->a4));
+ memcpy(&daddr->a4, &fl->fl4_dst, sizeof(daddr->a4));
+ break;
+ case AF_INET6:
+ ipv6_addr_copy((struct in6_addr *)&saddr->a6, &fl->fl6_src);
+ ipv6_addr_copy((struct in6_addr *)&daddr->a6, &fl->fl6_dst);
+ break;
+ }
+}
+
static __inline__ int
__xfrm4_state_addr_check(struct xfrm_state *x,
xfrm_address_t *daddr, xfrm_address_t *saddr)
extern int xfrm_input_resume(struct sk_buff *skb, int nexthdr);
extern int xfrm_output_resume(struct sk_buff *skb, int err);
extern int xfrm_output(struct sk_buff *skb);
+extern int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb);
extern int xfrm4_extract_header(struct sk_buff *skb);
extern int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb);
extern int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,