interface_params.cc

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/*
 * Copyright (c) 2017 Juniper Networks, Inc. All rights reserved.
 * Copyright Contributors to the OpenSDN project
 */
 
#include <oper/interface.h>
#include <oper/vm_interface.h>
#include <oper/physical_interface.h>
#include <oper/packet_interface.h>
 
void Interface::ObtainOsSpecificParams(const std::string &name, Agent *agent) {
    os_params_.os_oper_state_ = false;
 
    struct ifreq ifr;
    memset(&ifr, 0, sizeof(ifr));
    strncpy(ifr.ifr_name, name.c_str(), IF_NAMESIZE-1);
    int fd = socket(AF_LOCAL, SOCK_STREAM, 0);
    assert(fd >= 0);
    if (ioctl(fd, SIOCGIFHWADDR, (void *)&ifr) < 0) {
        LOG(ERROR, "Error <" << errno << ": " << strerror(errno) <<
            "> querying mac-address for interface <" << name << "> " <<
            "Agent-index <" << id_ << ">");
        close(fd);
        return;
    }
 
    if (ioctl(fd, SIOCGIFFLAGS, (void *)&ifr) < 0) {
        LOG(ERROR, "Error <" << errno << ": " << strerror(errno) <<
            "> querying flags for interface <" << name << "> " <<
            "Agent-index <" << id_ << ">");
        close(fd);
        return;
    }
 
    if ((ifr.ifr_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) {
        os_params_.os_oper_state_ = true;
    }
    close(fd);
#if defined(__linux__)
    os_params_.mac_ = ifr.ifr_hwaddr;
    /* FIXME: Hack till priovisioing code changes for vhost0 */
    if (agent->is_l3mh() && name.compare("vhost0") == 0) {
        os_params_.mac_ = MacAddress::FromString("00:00:5e:00:01:00");
    }
#endif
 
    int idx = if_nametoindex(name.c_str());
    if (idx)
        os_params_.os_index_ = idx;
}
 
void VmInterface::ObtainOsSpecificParams(const std::string &name, Agent *agent) {
    Interface::ObtainOsSpecificParams(name, agent);
}
 
void PhysicalInterface::ObtainOsSpecificParams(const std::string &name, Agent *agent) {
    Interface::ObtainOsSpecificParams(name, agent);
}
 
void PacketInterface::ObtainOsSpecificParams(const std::string &name, Agent *agent) {
    Interface::ObtainOsSpecificParams(name, agent);
}