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authorMatus Fabian <matfabia@cisco.com>2017-06-21 06:15:18 -0700
committerOle Trøan <otroan@employees.org>2017-06-21 16:27:41 +0000
commit428dc9110bee7eedf8aac6f12a89181e8e5343f5 (patch)
treea24e6acb6db074054286f18dd11ac96df96c2832 /src/plugins/snat/nat64.h
parent793fe2179c2403af330409f7e7d34bb0f7910b99 (diff)
NAT64: custom prefix
Change-Id: If397b49861468eed29b964fa64b186f80eb0eceb Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/snat/nat64.h')
-rw-r--r--src/plugins/snat/nat64.h59
1 files changed, 58 insertions, 1 deletions
diff --git a/src/plugins/snat/nat64.h b/src/plugins/snat/nat64.h
index df0c470ab1f..771b9075405 100644
--- a/src/plugins/snat/nat64.h
+++ b/src/plugins/snat/nat64.h
@@ -41,13 +41,24 @@ typedef enum
typedef struct
{
+ ip6_address_t prefix;
+ u8 plen;
+ u32 vrf_id;
+ u32 fib_index;
+} nat64_prefix_t;
+
+typedef struct
+{
/** Interface pool */
snat_interface_t *interfaces;
/** Address pool vector */
snat_address_t *addr_pool;
- /** BIB and session DB **/
+ /** Pref64 vector */
+ nat64_prefix_t *pref64;
+
+ /** BIB and session DB */
nat64_db_t db;
/* values of various timeouts */
@@ -251,6 +262,52 @@ void nat64_session_reset_timeout (nat64_db_st_entry_t * ste,
void nat64_tcp_session_set_state (nat64_db_st_entry_t * ste,
tcp_header_t * tcp, u8 is_ip6);
+/**
+ * @brief Add/delete NAT64 prefix.
+ *
+ * @param prefix NAT64 prefix.
+ * @param plen Prefix length.
+ * @param vrf_id VRF id of tenant.
+ * @param is_add 1 if add, 0 if delete.
+ *
+ * @returns 0 on success, non-zero value otherwise.
+ */
+int nat64_add_del_prefix (ip6_address_t * prefix, u8 plen, u32 vrf_id,
+ u8 is_add);
+
+/**
+ * @brief Call back function when walking addresses in NAT64 prefixes, non-zero
+ * return value stop walk.
+ */
+typedef int (*nat64_prefix_walk_fn_t) (nat64_prefix_t * pref64, void *ctx);
+
+/**
+ * @brief Walk NAT64 prefixes.
+ *
+ * @param fn The function to invoke on each entry visited.
+ * @param ctx A context passed in the visit function.
+ */
+void nat64_prefix_walk (nat64_prefix_walk_fn_t fn, void *ctx);
+
+/**
+ * Compose IPv4-embedded IPv6 addresses.
+ * @param ip6 IPv4-embedded IPv6 addresses.
+ * @param ip4 IPv4 address.
+ * @param fib_index Tenant FIB index.
+ */
+void nat64_compose_ip6 (ip6_address_t * ip6, ip4_address_t * ip4,
+ u32 fib_index);
+
+/**
+ * Extract IPv4 address from the IPv4-embedded IPv6 addresses.
+ *
+ * @param ip6 IPv4-embedded IPv6 addresses.
+ * @param ip4 IPv4 address.
+ * @param fib_index Tenant FIB index.
+ */
+void nat64_extract_ip4 (ip6_address_t * ip6, ip4_address_t * ip4,
+ u32 fib_index);
+
#define u8_ptr_add(ptr, index) (((u8 *)ptr) + index)
#define u16_net_add(u, val) clib_host_to_net_u16(clib_net_to_host_u16(u) + (val))