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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>
111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
/*
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* Linux 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_LINUX
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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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struct ifreq ifr;
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if (strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name))
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> sizeof(ifr.ifr_name))
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log_error("interface-to-index: name truncated ('%s' -> '%s')",
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ifr.ifr_name, ifname);
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if (ioctl(bglobal.bg_shop, SIOCGIFINDEX, &ifr) == -1) {
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log_error("interface-to-index: %s translation failed: %s",
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ifname, strerror(errno));
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return -1;
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}
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return ifr.ifr_ifindex;
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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 ifreq ifr;
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if (strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name))
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> sizeof(ifr.ifr_name))
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log_error("interface-mac: name truncated ('%s' -> '%s')",
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ifr.ifr_name, ifname);
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if (ioctl(bglobal.bg_shop, SIOCGIFHWADDR, &ifr) == -1) {
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log_error("interface-mac: %s MAC retrieval failed: %s", ifname,
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strerror(errno));
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return;
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}
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memcpy(mac, ifr.ifr_hwaddr.sa_data, ETHERNET_ADDRESS_LENGTH);
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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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struct ifreq ifr;
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ifname[0] = 0;
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memset(&ifr, 0, sizeof(ifr));
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ifr.ifr_ifindex = ifindex;
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if (ioctl(bglobal.bg_shop, SIOCGIFNAME, &ifr) == -1) {
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log_error("index-to-interface: index %d failure: %s", ifindex,
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strerror(errno));
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return;
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}
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if (strlcpy(ifname, ifr.ifr_name, ifnamelen) >= ifnamelen)
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log_debug("index-to-interface: name truncated '%s' -> '%s'",
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ifr.ifr_name, ifname);
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}
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int bp_bind_dev(int sd __attribute__((__unused__)),
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const char *dev __attribute__((__unused__)))
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{
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/*
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* TODO: implement this differently. It is not possible to
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* SO_BINDTODEVICE after the daemon has dropped its privileges.
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*/
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#if 0
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size_t devlen = strlen(dev) + 1;
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if (setsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, dev, devlen) == -1) {
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log_warning("%s: setsockopt(SO_BINDTODEVICE, \"%s\"): %s",
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__func__, dev, strerror(errno));
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return -1;
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}
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#endif
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return 0;
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}
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#endif /* BFD_LINUX */
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