IPv6: reorganize prefix assignment

[project/netifd.git] / interface-ip.h

diff --git a/interface-ip.h b/interface-ip.h
index d206eca..442830b 100644 (file)
--- a/interface-ip.h
+++ b/interface-ip.h
@@ -28,8 +28,20 @@ enum device_addr_flags {
        /* route overrides the default interface metric */
        DEVROUTE_METRIC         = (1 << 3),
 
+       /* route overrides the default interface mtu */
+       DEVROUTE_MTU            = (1 << 4),
+
        /* route automatically added by kernel */
-       DEVADDR_KERNEL          = (1 << 4),
+       DEVADDR_KERNEL          = (1 << 5),
+
+       /* address is off-link (no subnet-route) */
+       DEVADDR_OFFLINK         = (1 << 6),
+
+       /* route resides in different table */
+       DEVROUTE_TABLE          = (1 << 7),
+
+       /* route resides in default source-route table */
+       DEVROUTE_SRCTABLE       = (1 << 8),
 };
 
 union if_addr {
@@ -37,6 +49,31 @@ union if_addr {
        struct in6_addr in6;
 };
 
+struct device_prefix_assignment {
+       struct list_head head;
+       int32_t assigned;
+       uint8_t length;
+       bool enabled;
+       char name[];
+};
+
+struct device_prefix {
+       struct vlist_node node;
+       struct list_head head;
+       struct list_head assignments;
+       struct interface *iface;
+       time_t valid_until;
+       time_t preferred_until;
+
+       struct in6_addr addr;
+       struct in6_addr excl_addr;
+
+       uint8_t length;
+       uint8_t excl_length;
+
+       char pclass[];
+};
+
 struct device_addr {
        struct vlist_node node;
        bool enabled;
@@ -45,6 +82,10 @@ struct device_addr {
        uint32_t broadcast;
        uint32_t point_to_point;
 
+       /* ipv6 only */
+       time_t valid_until;
+       time_t preferred_until;
+
        /* must be last */
        enum device_addr_flags flags;
        unsigned int mask;
@@ -59,11 +100,13 @@ struct device_route {
        bool keep;
 
        union if_addr nexthop;
-       int metric;
        int mtu;
+       time_t valid_until;
 
        /* must be last */
        enum device_addr_flags flags;
+       int metric; // there can be multiple routes to the same target
+       unsigned int table;
        unsigned int mask;
        union if_addr addr;
 };
@@ -80,6 +123,7 @@ struct dns_search_domain {
 };
 
 extern const struct config_param_list route_attr_list;
+extern struct list_head prefixes;
 
 void interface_ip_init(struct interface *iface);
 void interface_add_dns_server(struct interface_ip_settings *ip, const char *str);
@@ -95,6 +139,12 @@ void interface_ip_flush(struct interface_ip_settings *ip);
 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled);
 void interface_ip_update_metric(struct interface_ip_settings *ip, int metric);
 
-struct interface *interface_ip_add_target_route(union if_addr *addr, bool v6);
+struct interface *interface_ip_add_target_route(union if_addr *addr, bool v6, struct interface *iface);
+
+struct device_prefix* interface_ip_add_device_prefix(struct interface *iface,
+               struct in6_addr *addr, uint8_t length, time_t valid_until, time_t preferred_until,
+               struct in6_addr *excl_addr, uint8_t excl_length, const char *pclass);
+void interface_ip_set_ula_prefix(const char *prefix);
+void interface_refresh_assignments(bool hint);
 
 #endif