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/*
IPC integration of babeld with OpenWrt.
The ubus interface offers following functions:
- add_filter '{"ifname":"eth0", "type":0, "metric":5000}'
type:
0: FILTER_TYPE_INPUT
1: FILTER_TYPE_OUTPUT
2: FILTER_TYPE_REDISTRIBUTE
3: FILTER_TYPE_INSTALL
- add_interface '{"ifname":"eth0"}'
- get_info
- get_neighbours
- get_xroutes
- get_routes
All output is divided into IPv4 and IPv6.
Ubus notifications are sent if we receive updates for
- xroutes
- routes
- neighbours
The format is:
- {route,xroute,neighbour}.add: Object was added
- {route,xroute,neighbour}.change: Object was changed
- {route,xroute,neighbour}.flush: Object was flushed
*/
#include <stdbool.h>
#include <sys/select.h>
struct babel_route;
struct neighbour;
struct xroute;
// Whether to enable ubus bindings (boolean option).
extern int ubus_bindings;
/**
* Initialize ubus interface.
*
* Connect to the ubus daemon and expose the ubus functions.
*
* @return if initializing ubus was successful
*/
bool babeld_add_ubus();
/**
* Add ubus socket to given filedescriptor set.
*
* We need to check repeatedly if the ubus socket has something to read.
* The functions allows to add the ubus socket to the normal while(1)-loop of
* babeld.
*
* @param readfs: the filedescriptor set
* @param maxfd: the current maximum file descriptor
* @return the maximum file descriptor
*/
int babeld_ubus_add_read_sock(fd_set *readfds, int maxfd);
/**
* Check and process ubus socket.
*
* If the ubus-socket signals that data is available, the ubus_handle_event is
* called.
*/
void babeld_ubus_receive(fd_set *readfds);
/***
* Notify the ubus bus that a new xroute is received.
*
* If a new xroute is received or changed, we will notify subscribers.
*
* @param xroute: xroute that experienced some change
* @param kind: kind that describes if we have a flush, add or change
*/
void ubus_notify_xroute(struct xroute *xroute, int kind);
/***
* Notify the ubus bus that a new route is received.
*
* If a new route is received or changed, we will notify subscribers.
*
* @param route: route that experienced some change
* @param kind: kind that describes if we have a flush, add or change
*/
void ubus_notify_route(struct babel_route *route, int kind);
/***
* Notify the ubus bus that a new neighbour is received.
*
* If a new neighbour is received or changed, we will notify subscribers.
*
* @param neigh: neighbour that experienced some change
* @param kind: kind that describes if we have a flush, add or change
*/
void ubus_notify_neighbour(struct neighbour *neigh, int kind);
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