pingu: implement new config format

New format allows users to define interfaces and ping hosts separately.
This means we can run pingu in routing-only mode to set up and manage
route tables for multi-isp.

We allow the user config a preferred alternate route table for each
interface. If not configured, pingu will pick one.

Example interface definition looks like:

interface eth0 {
	route-table 10
}

Example host definition looks like:

host 192.168.0.1 {
	bind-interface eth0
}

1 files changed, 5 insertions, 2 deletions

diff --git a/pingu_iface.h b/pingu_iface.h
index 68d4b32..8107601 100644
--- a/pingu_iface.h
+++ b/pingu_iface.h
@@ -7,6 +7,8 @@
 #include "sockaddr_util.h"
 #include "list.h"
 
+#define PINGU_ROUTE_TABLE_AUTO -1
+
 struct pingu_gateway {
 	union sockaddr_any gw_addr;
 	union sockaddr_any dest;
@@ -37,13 +39,14 @@ struct pingu_iface {
 
 struct pingu_iface *pingu_iface_get_by_name(const char *name);
 struct pingu_iface *pingu_iface_get_by_index(int index);
-struct pingu_iface *pingu_iface_new(const char *name);
+struct pingu_iface *pingu_iface_get_by_name_or_new(const char *name);
 int pingu_iface_bind_socket(struct pingu_iface *iface, int log_error);
 int pingu_iface_usable(struct pingu_iface *iface);
-int pingu_iface_init(struct ev_loop *loop, struct list_head *host_list);
+int pingu_iface_init(struct ev_loop *loop);
 
 void pingu_iface_set_addr(struct pingu_iface *iface, int family,
 			  void *data, int len);
+int pingu_iface_set_route_table(struct pingu_iface *iface, int table);
 
 void pingu_iface_gw_action(struct pingu_iface *iface,
 			   struct pingu_gateway *gw, int action);