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Diffstat (limited to 'net/ipv6/ila/ila.h')
-rw-r--r--net/ipv6/ila/ila.h79
1 files changed, 76 insertions, 3 deletions
diff --git a/net/ipv6/ila/ila.h b/net/ipv6/ila/ila.h
index 28542cb2b..d08fd2d48 100644
--- a/net/ipv6/ila/ila.h
+++ b/net/ipv6/ila/ila.h
@@ -23,10 +23,76 @@
#include <net/protocol.h>
#include <uapi/linux/ila.h>
+struct ila_locator {
+ union {
+ __u8 v8[8];
+ __be16 v16[4];
+ __be32 v32[2];
+ __be64 v64;
+ };
+};
+
+struct ila_identifier {
+ union {
+ struct {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ u8 __space:4;
+ u8 csum_neutral:1;
+ u8 type:3;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+ u8 type:3;
+ u8 csum_neutral:1;
+ u8 __space:4;
+#else
+#error "Adjust your <asm/byteorder.h> defines"
+#endif
+ u8 __space2[7];
+ };
+ __u8 v8[8];
+ __be16 v16[4];
+ __be32 v32[2];
+ __be64 v64;
+ };
+};
+
+enum {
+ ILA_ATYPE_IID = 0,
+ ILA_ATYPE_LUID,
+ ILA_ATYPE_VIRT_V4,
+ ILA_ATYPE_VIRT_UNI_V6,
+ ILA_ATYPE_VIRT_MULTI_V6,
+ ILA_ATYPE_RSVD_1,
+ ILA_ATYPE_RSVD_2,
+ ILA_ATYPE_RSVD_3,
+};
+
+#define CSUM_NEUTRAL_FLAG htonl(0x10000000)
+
+struct ila_addr {
+ union {
+ struct in6_addr addr;
+ struct {
+ struct ila_locator loc;
+ struct ila_identifier ident;
+ };
+ };
+};
+
+static inline struct ila_addr *ila_a2i(struct in6_addr *addr)
+{
+ return (struct ila_addr *)addr;
+}
+
+static inline bool ila_addr_is_ila(struct ila_addr *iaddr)
+{
+ return (iaddr->ident.type != ILA_ATYPE_IID);
+}
+
struct ila_params {
- __be64 locator;
- __be64 locator_match;
+ struct ila_locator locator;
+ struct ila_locator locator_match;
__wsum csum_diff;
+ u8 csum_mode;
};
static inline __wsum compute_csum_diff8(const __be32 *from, const __be32 *to)
@@ -38,7 +104,14 @@ static inline __wsum compute_csum_diff8(const __be32 *from, const __be32 *to)
return csum_partial(diff, sizeof(diff), 0);
}
-void update_ipv6_locator(struct sk_buff *skb, struct ila_params *p);
+static inline bool ila_csum_neutral_set(struct ila_identifier ident)
+{
+ return !!(ident.csum_neutral);
+}
+
+void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p);
+
+void ila_init_saved_csum(struct ila_params *p);
int ila_lwt_init(void);
void ila_lwt_fini(void);