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46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
/** Netlink related functions.
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*
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* @file
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* @author Steffen Vogel <svogel2@eonerc.rwth-aachen.de>
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* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
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* @license Apache 2.0
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*********************************************************************************/
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#pragma once
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#include <sys/socket.h>
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#include <netlink/netlink.h>
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#include <netlink/route/route.h>
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#include <netlink/route/link.h>
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namespace villas {
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namespace kernel {
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namespace nl {
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/** Get index of outgoing interface for given destination address.
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*
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* @retval >=0 Interface index of outgoing interface.
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* @retval <0 Error. Something went wrong.
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*/
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int get_egress(struct nl_addr *addr);
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/** Lookup routing tables to get the interface on which packets for a certain destination
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* will leave the system.
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*
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* @param[in] sa The destination address for outgoing packets.
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* @param[out] link The egress interface.
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* @retval 0 Success. Everything went well.
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* @retval <0 Error. Something went wrong.
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*/
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struct rtnl_link * get_egress_link(struct sockaddr *sa);
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/** Get or create global netlink socket. */
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struct nl_sock * init();
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/** Close and free global netlink socket. */
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void shutdown();
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} /* namespace nl */
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} /* namespace kernel */
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} /* namespace villas */
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