Ashin Walpola
d107534eb2
obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
#include "ethernet_device.hpp"
|
|
#include <boost/asio/ip/address.hpp>
|
|
#include <algorithm>
|
|
#include <cstring>
|
|
#include <system_error>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/if_packet.h>
|
|
#include <net/if.h>
|
|
#include <sys/ioctl.h>
|
|
#include <ifaddrs.h>
|
|
|
|
static void initialize(ifreq& request, const char* interface_name)
|
|
{
|
|
std::memset(&request, 0, sizeof(ifreq));
|
|
std::strncpy(request.ifr_name, interface_name, IF_NAMESIZE);
|
|
request.ifr_name[IF_NAMESIZE - 1] = '\0';
|
|
}
|
|
|
|
EthernetDevice::EthernetDevice(const char* devname) :
|
|
inet_socket_(::socket(AF_INET, SOCK_DGRAM, 0)),
|
|
interface_name_(devname)
|
|
{
|
|
if (!inet_socket_) {
|
|
throw std::system_error(errno, std::system_category());
|
|
}
|
|
}
|
|
|
|
EthernetDevice::~EthernetDevice()
|
|
{
|
|
if (inet_socket_ >= 0)
|
|
::close(inet_socket_);
|
|
|
|
}
|
|
|
|
EthernetDevice::protocol::endpoint EthernetDevice::endpoint(int family) const
|
|
{
|
|
sockaddr_ll socket_address = {};
|
|
socket_address.sll_family = family;
|
|
socket_address.sll_protocol = htons(ETH_P_ALL);
|
|
socket_address.sll_ifindex = index();
|
|
return protocol::endpoint(&socket_address, sizeof(sockaddr_ll));
|
|
}
|
|
|
|
int EthernetDevice::index() const
|
|
{
|
|
ifreq data;
|
|
initialize(data, interface_name_.c_str());
|
|
::ioctl(inet_socket_, SIOCGIFINDEX, &data);
|
|
return data.ifr_ifindex;
|
|
}
|
|
|
|
vanetza::MacAddress EthernetDevice::address() const
|
|
{
|
|
ifreq data;
|
|
initialize(data, interface_name_.c_str());
|
|
::ioctl(inet_socket_, SIOCGIFHWADDR, &data);
|
|
|
|
vanetza::MacAddress addr;
|
|
std::copy_n(data.ifr_hwaddr.sa_data, addr.octets.size(), addr.octets.data());
|
|
return addr;
|
|
}
|
|
|
|
boost::asio::ip::address_v4 EthernetDevice::ip() const
|
|
{
|
|
ifreq data;
|
|
initialize(data, interface_name_.c_str());
|
|
::ioctl(inet_socket_, SIOCGIFADDR, &data);
|
|
|
|
char host[NI_MAXHOST] = { 0 };
|
|
::getnameinfo(&data.ifr_addr, sizeof(sockaddr), host, NI_MAXHOST, nullptr, 0, NI_NUMERICHOST);
|
|
|
|
return boost::asio::ip::make_address_v4(host);
|
|
}
|