ipsec-types: Add helper to parse interface ID

[thirdparty/strongswan.git] / src / libstrongswan / ipsec / ipsec_types.h

diff --git a/src/libstrongswan/ipsec/ipsec_types.h b/src/libstrongswan/ipsec/ipsec_types.h
index 7b7bd3743e61d56d2efb5b09c8f0e0c04fab49a9..6750e229405d160a728acfd8b2b84922bd1c3da9 100644 (file)
--- a/src/libstrongswan/ipsec/ipsec_types.h
+++ b/src/libstrongswan/ipsec/ipsec_types.h
@@ -240,4 +240,20 @@ enum mark_op_t {
  */
 bool mark_from_string(const char *value, mark_op_t ops, mark_t *mark);
 
+/**
+ * Special interface ID values to allocate a unique ID for each CHILD_SA/dir
+ */
+#define IF_ID_UNIQUE (0xFFFFFFFF)
+#define IF_ID_UNIQUE_DIR (0xFFFFFFFE)
+#define IF_ID_IS_UNIQUE(m) ((m) == IF_ID_UNIQUE || (m) == IF_ID_UNIQUE_DIR)
+
+/**
+ * Try to parse an interface ID from the given string.
+ *
+ * @param value                string to parse
+ * @param if_id                interface ID to fill
+ * @return                     TRUE if parsing was successful
+ */
+bool if_id_from_string(const char *value, uint32_t *if_id);
+
 #endif /** IPSEC_TYPES_H_ @}*/