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.
149 lines
3.9 KiB
C++
149 lines
3.9 KiB
C++
#include <vanetza/security/cam_ssp.hpp>
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#include <boost/format.hpp>
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namespace vanetza
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{
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namespace security
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{
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CamPermissions::CamPermissions() : m_bits(0)
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{
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}
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CamPermissions::CamPermissions(CamPermission cp) : m_bits(static_cast<value_type>(cp))
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{
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}
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CamPermissions::CamPermissions(const std::initializer_list<CamPermission>& cps) : m_bits(0)
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{
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for (CamPermission cp : cps) {
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add(cp);
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}
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}
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bool CamPermissions::has(CamPermission cp) const
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{
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const auto cp_raw = static_cast<value_type>(cp);
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return (m_bits & cp_raw) == cp_raw;
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}
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bool CamPermissions::has(const std::initializer_list<CamPermission>& cps) const
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{
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for (CamPermission cp : cps) {
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if (!has(cp)) return false;
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}
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return true;
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}
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bool CamPermissions::has(const CamPermissions& required) const
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{
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return (m_bits & required.m_bits) == required.m_bits;
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}
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bool CamPermissions::none() const
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{
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return m_bits == 0;
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}
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std::set<CamPermission> CamPermissions::permissions() const
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{
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std::set<CamPermission> perms;
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std::underlying_type<CamPermission>::type bit = 1;
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for (unsigned i = 1; i < sizeof(bit) * 8; ++i) {
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CamPermission permission = static_cast<CamPermission>(bit);
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if (has(permission)) {
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perms.insert(permission);
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}
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bit <<= 1;
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}
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return perms;
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}
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CamPermissions& CamPermissions::add(CamPermission cp)
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{
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m_bits |= static_cast<value_type>(cp);
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return *this;
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}
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CamPermissions& CamPermissions::remove(CamPermission cp)
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{
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m_bits &= ~static_cast<value_type>(cp);
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return *this;
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}
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ByteBuffer CamPermissions::encode() const
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{
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return ByteBuffer({1, static_cast<uint8_t>(m_bits), static_cast<uint8_t>(m_bits >> 8) });
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}
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CamPermissions CamPermissions::decode(const ByteBuffer& buffer)
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{
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CamPermissions permissions;
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if (buffer.size() == 3 && buffer[0] == 1) {
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permissions.m_bits = buffer[2];
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permissions.m_bits <<= 8;
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permissions.m_bits |= buffer[1];
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}
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return permissions;
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}
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std::string stringify(CamPermission permission)
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{
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std::string result;
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switch (permission) {
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case CamPermission::CEN_DSRC_Tolling_Zone:
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result = "CEN DSRC Tolling Zone";
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break;
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case CamPermission::Public_Transport:
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result = "Public Transport";
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break;
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case CamPermission::Special_Transport:
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result = "Special Transport";
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break;
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case CamPermission::Dangerous_Goods:
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result = "Dangerous Goods";
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break;
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case CamPermission::Roadwork:
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result = "Roadwork";
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break;
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case CamPermission::Rescue:
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result = "Rescue";
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break;
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case CamPermission::Emergency:
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result = "Emergency";
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break;
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case CamPermission::Safety_Car:
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// everybody should have an AMG GT S Safety Car ;-)
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result = "Safety Car";
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break;
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case CamPermission::Closed_Lanes:
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result = "Closed Lanes";
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break;
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case CamPermission::Request_For_Right_Of_Way:
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result = "Request for Right of Way";
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break;
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case CamPermission::Request_For_Free_Crossing_At_Traffic_Light:
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result = "Request for Free Crossing at Traffic Light";
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break;
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case CamPermission::No_Passing:
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result = "No Passing";
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break;
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case CamPermission::No_Passing_For_Trucks:
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result = "No Passing for Trucks";
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break;
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case CamPermission::Speed_Limit:
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result = "Speed Limit";
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break;
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default:
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static_assert(sizeof(CamPermission) == 2, "Expected CamPermission to be 2 bytes wide");
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result = str(boost::format("Reserved (%0#6x)") % static_cast<uint16_t>(permission));
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break;
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}
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return result;
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}
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} // namespace security
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} // namespace vanetza
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