diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:24:08 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:24:08 +0000 |
commit | f449f278dd3c70e479a035f50a9bb817a9b433ba (patch) | |
tree | 8ca2bfb785dda9bb4d573acdf9b42aea9cd51383 /src/utils/kxdpgun/ip_route.h | |
parent | Initial commit. (diff) | |
download | knot-f449f278dd3c70e479a035f50a9bb817a9b433ba.tar.xz knot-f449f278dd3c70e479a035f50a9bb817a9b433ba.zip |
Adding upstream version 3.2.6.upstream/3.2.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/utils/kxdpgun/ip_route.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/utils/kxdpgun/ip_route.h b/src/utils/kxdpgun/ip_route.h new file mode 100644 index 0000000..c35c25b --- /dev/null +++ b/src/utils/kxdpgun/ip_route.h @@ -0,0 +1,46 @@ +/* Copyright (C) 2022 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#pragma once + +#include <stdint.h> +#include <sys/socket.h> + +/*! + * \brief Get route to an IPv4/6 from system routing table. + * + * \param ip IPv4 or IPv6 to search route to. + * \param via Out: gateway (first hop) on the route, or AF_UNSPEC if same subnet. + * \param src Out: local outgoing IP address on the route. + * \param dev Out: local network interface on the route (you must pre-allocate IFNAMSIZ bytes!). + * + * \return 0 on success, negative errno otherwise. + */ +int ip_route_get(const struct sockaddr_storage *ip, + struct sockaddr_storage *via, + struct sockaddr_storage *src, + char *dev); + +/*! + * \brief Obtain neighbour's MAC addr from system neighbour table. + * + * \param ip IPv4 or IPv6 of the neighbour in question. + * \param dummy_sendto Attempt sendto() to target IP in order to let the system fill the neighbour table. + * \param mac Out: MAC address of the neighbour (you must pre-allocate ETH_ALEN bytes!). + * + * \return 0 on success, -ENOENT if neighbour not found, negative errno otherwise. + */ +int ip_neigh_get(const struct sockaddr_storage *ip, bool dummy_sendto, uint8_t *mac); |