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https://git.proxmox.com/git/mirror_frr
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2f11c53f55
Avoid all complexities of handling ethernet/IP/UDP headers and just use UDP sockets: let the OS kernel handle this task. Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/*
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* *BSD specific code
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*
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* Copyright (C) 2018 Network Device Education Foundation, Inc. ("NetDEF")
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*
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* FRR is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* FRR is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with FRR; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include <zebra.h>
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#ifdef BFD_BSD
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#include <net/if.h>
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#include <net/if_types.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <ifaddrs.h>
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#include "bfd.h"
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/*
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* Definitions.
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*/
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int ptm_bfd_fetch_ifindex(const char *ifname)
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{
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return if_nametoindex(ifname);
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}
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void ptm_bfd_fetch_local_mac(const char *ifname, uint8_t *mac)
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{
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struct ifaddrs *ifap, *ifa;
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struct if_data *ifi;
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struct sockaddr_dl *sdl;
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size_t maclen;
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/* Always clean the target, zeroed macs mean failure. */
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memset(mac, 0, ETHERNET_ADDRESS_LENGTH);
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if (getifaddrs(&ifap) != 0)
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return;
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for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
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/* Find interface with that name. */
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if (strcmp(ifa->ifa_name, ifname) != 0)
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continue;
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/* Skip non link addresses. We want the MAC address. */
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if (ifa->ifa_addr->sa_family != AF_LINK)
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continue;
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sdl = (struct sockaddr_dl *)ifa->ifa_addr;
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ifi = (struct if_data *)ifa->ifa_data;
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/* Skip non ethernet related data. */
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if (ifi->ifi_type != IFT_ETHER)
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continue;
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if (sdl->sdl_alen != ETHERNET_ADDRESS_LENGTH)
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log_warning("%s:%d mac address length %d (expected %d)",
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__func__, __LINE__, sdl->sdl_alen,
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ETHERNET_ADDRESS_LENGTH);
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maclen = (sdl->sdl_alen > ETHERNET_ADDRESS_LENGTH)
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? ETHERNET_ADDRESS_LENGTH
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: sdl->sdl_alen;
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memcpy(mac, LLADDR(sdl), maclen);
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break;
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}
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freeifaddrs(ifap);
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}
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/* Was _fetch_portname_from_ifindex() */
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void fetch_portname_from_ifindex(int ifindex, char *ifname, size_t ifnamelen)
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{
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char ifname_tmp[IF_NAMESIZE];
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/* Set ifname to empty to signalize failures. */
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memset(ifname, 0, ifnamelen);
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if (if_indextoname(ifindex, ifname_tmp) == NULL)
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return;
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if (strlcpy(ifname, ifname_tmp, ifnamelen) > ifnamelen)
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log_warning("%s:%d interface name truncated", __func__,
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__LINE__);
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}
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int bp_bind_dev(int sd, const char *dev)
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{
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/*
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* *BSDs don't support `SO_BINDTODEVICE`, instead you must
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* manually specify the main address of the interface or use
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* BPF on the socket descriptor.
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*/
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return 0;
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}
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#endif /* BFD_BSD */
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