X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Fnet%2Fxfrm.h;h=311bbd113aa7eb7ccf3530ade685a78ca9e6d7e6;hb=d26f398400311982d2433debae85746c348b7d58;hp=1dd20cf17982663b8881f55c76440d7dd096d98d;hpb=eba0e319c12fb098d66316a8eafbaaa9174a07c3;p=linux-2.6-omap-h63xx.git diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 1dd20cf1798..311bbd113aa 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -183,7 +183,7 @@ struct xfrm_state struct timer_list timer; /* Last used time */ - u64 lastused; + unsigned long lastused; /* Reference to data common to all the instances of this * transformer. */ @@ -227,22 +227,22 @@ struct km_event u32 event; }; +struct net_device; struct xfrm_type; struct xfrm_dst; struct xfrm_policy_afinfo { unsigned short family; struct dst_ops *dst_ops; void (*garbage_collect)(void); - int (*dst_lookup)(struct xfrm_dst **dst, struct flowi *fl); + struct dst_entry *(*dst_lookup)(int tos, xfrm_address_t *saddr, + xfrm_address_t *daddr); int (*get_saddr)(xfrm_address_t *saddr, xfrm_address_t *daddr); struct dst_entry *(*find_bundle)(struct flowi *fl, struct xfrm_policy *policy); - int (*bundle_create)(struct xfrm_policy *policy, - struct xfrm_state **xfrm, - int nx, - struct flowi *fl, - struct dst_entry **dst_p); void (*decode_session)(struct sk_buff *skb, struct flowi *fl); + int (*get_tos)(struct flowi *fl); + int (*fill_dst)(struct xfrm_dst *xdst, + struct net_device *dev); }; extern int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo); @@ -257,6 +257,9 @@ extern int __xfrm_state_delete(struct xfrm_state *x); struct xfrm_state_afinfo { unsigned int family; + unsigned int proto; + unsigned int eth_proto; + unsigned int nf_post_routing; struct module *owner; struct xfrm_type *type_map[IPPROTO_MAX]; struct xfrm_mode *mode_map[XFRM_MODE_MAX]; @@ -267,6 +270,12 @@ struct xfrm_state_afinfo { 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); int (*output)(struct sk_buff *skb); + int (*extract_input)(struct xfrm_state *x, + struct sk_buff *skb); + int (*extract_output)(struct xfrm_state *x, + struct sk_buff *skb); + int (*transport_finish)(struct sk_buff *skb, + int async); }; extern int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo); @@ -282,6 +291,8 @@ struct xfrm_type __u8 flags; #define XFRM_TYPE_NON_FRAGMENT 1 #define XFRM_TYPE_REPLAY_PROT 2 +#define XFRM_TYPE_LOCAL_COADDR 4 +#define XFRM_TYPE_REMOTE_COADDR 8 int (*init_state)(struct xfrm_state *x); void (*destructor)(struct xfrm_state *); @@ -289,8 +300,6 @@ struct xfrm_type int (*output)(struct xfrm_state *, struct sk_buff *pskb); int (*reject)(struct xfrm_state *, struct sk_buff *, struct flowi *); int (*hdr_offset)(struct xfrm_state *, struct sk_buff *, u8 **); - xfrm_address_t *(*local_addr)(struct xfrm_state *, xfrm_address_t *); - xfrm_address_t *(*remote_addr)(struct xfrm_state *, xfrm_address_t *); /* Estimate maximal size of result of transformation of a dgram */ u32 (*get_mtu)(struct xfrm_state *, int size); }; @@ -299,6 +308,27 @@ extern int xfrm_register_type(struct xfrm_type *type, unsigned short family); extern int xfrm_unregister_type(struct xfrm_type *type, unsigned short family); struct xfrm_mode { + /* + * 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. + */ int (*input)(struct xfrm_state *x, struct sk_buff *skb); /* @@ -312,7 +342,18 @@ struct xfrm_mode { * header. The value of the network header will always point * to the top IP header while skb->data will point to the payload. */ - int (*output)(struct xfrm_state *x,struct sk_buff *skb); + 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); struct xfrm_state_afinfo *afinfo; struct module *owner; @@ -454,6 +495,51 @@ struct xfrm_skb_cb { #define XFRM_SKB_CB(__skb) ((struct xfrm_skb_cb *)&((__skb)->cb[0])) +/* + * 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; + + /* TOS for IPv4, class for IPv6. */ + u8 tos; + + /* TTL for IPv4, hop limitfor IPv6. */ + u8 ttl; + + /* Protocol for IPv4, NH for IPv6. */ + u8 protocol; + + /* 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])) + +/* + * 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; + + unsigned int nhoff; + unsigned int daddroff; +}; + +#define XFRM_SPI_SKB_CB(__skb) ((struct xfrm_spi_skb_cb *)&((__skb)->cb[0])) + /* Audit Information */ struct xfrm_audit { @@ -1050,9 +1136,16 @@ extern void xfrm_replay_advance(struct xfrm_state *x, __be32 seq); extern void xfrm_replay_notify(struct xfrm_state *x, int event); extern int xfrm_state_mtu(struct xfrm_state *x, int mtu); extern int xfrm_init_state(struct xfrm_state *x); +extern int xfrm_prepare_input(struct xfrm_state *x, struct sk_buff *skb); +extern int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, + int encap_type); +extern int xfrm_output_resume(struct sk_buff *skb, int err); extern int xfrm_output(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, int encap_type); +extern int xfrm4_transport_finish(struct sk_buff *skb, int async); extern int xfrm4_rcv(struct sk_buff *skb); static inline int xfrm4_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi) @@ -1060,10 +1153,15 @@ static inline int xfrm4_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi) return xfrm4_rcv_encap(skb, nexthdr, spi, 0); } +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); extern int xfrm4_output(struct sk_buff *skb); extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family); extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family); +extern int xfrm6_extract_header(struct sk_buff *skb); +extern int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi); +extern int xfrm6_transport_finish(struct sk_buff *skb, int async); extern int xfrm6_rcv(struct sk_buff *skb); extern int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr, xfrm_address_t *saddr, u8 proto); @@ -1072,6 +1170,8 @@ extern int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler, unsigned short extern __be32 xfrm6_tunnel_alloc_spi(xfrm_address_t *saddr); extern void xfrm6_tunnel_free_spi(xfrm_address_t *saddr); extern __be32 xfrm6_tunnel_spi_lookup(xfrm_address_t *saddr); +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); extern int xfrm6_output(struct sk_buff *skb); extern int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb, u8 **prevhdr); @@ -1079,7 +1179,6 @@ extern int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb, #ifdef CONFIG_XFRM extern int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb); extern int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen); -extern int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl, unsigned short family); #else static inline int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen) { @@ -1092,11 +1191,6 @@ static inline int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb) kfree_skb(skb); return 0; } - -static inline int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl, unsigned short family) -{ - return -EINVAL; -} #endif struct xfrm_policy *xfrm_policy_alloc(gfp_t gfp); @@ -1117,7 +1211,6 @@ extern int xfrm_policy_flush(u8 type, struct xfrm_audit *audit_info); extern int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol); extern int xfrm_bundle_ok(struct xfrm_policy *pol, struct xfrm_dst *xdst, struct flowi *fl, int family, int strict); -extern void xfrm_init_pmtu(struct dst_entry *dst); #ifdef CONFIG_XFRM_MIGRATE extern int km_migrate(struct xfrm_selector *sel, u8 dir, u8 type,