Ashin Walpola
0e9525162d
obu-firmware builds against vanetza-idf from microbu-esp32c5/external, but that tree was gitignored, so a clone of this repository could not build the firmware it ships. It is now committed here as ordinary files in its own folder, microbu-esp32c5/: the colleague's commit cf4b99f plus the V2X2MAP bridge's signature verification (--trust) used on the bench. Nothing is fetched from or pushed to the colleague's repository; this repository and its remotes carry everything. The folder's own .gitignore keeps build output, downloaded components and private key material out, as it did there; the committed file set is identical to that repository's tracked files. The ESP32-C5 is still flashed from obu-firmware/, which only takes vanetza-idf from microbu-esp32c5/, so the two stay separate folders. FLASHING.md says how to take a newer version of the colleague's tree (copy it over the folder, rebuild, test, commit).
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
#include <vanetza/asn1/security_profile.hpp>
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#include VANETZA_ASN1_SECURITY_HEADER(EccP256CurvePoint.h)
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#include <vanetza/security/v3/asn1_conversions.hpp>
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#include <boost/variant/static_visitor.hpp>
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#include <algorithm>
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#include <cstring>
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namespace vanetza
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{
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namespace security
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{
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namespace v3
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{
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HashedId8 convert(const Vanetza_Security_HashedId8_t& in)
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{
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HashedId8 out;
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std::memcpy(out.data(), in.buf, std::min(out.size(), in.size));
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return out;
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}
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void assign(OCTET_STRING_t* dst, const ByteBuffer& src)
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{
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OCTET_STRING_fromBuf(dst, reinterpret_cast<const char*>(src.data()), src.size());
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}
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asn1::EccP256CurvePoint to_asn1(const EccPoint& point)
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{
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struct visitor : public boost::static_visitor<asn1::EccP256CurvePoint>
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{
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asn1::EccP256CurvePoint operator()(const X_Coordinate_Only& x_only) const
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{
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asn1::EccP256CurvePoint result = {};
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result.present = Vanetza_Security_EccP256CurvePoint_PR_x_only;
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assign(&result.choice.x_only, x_only.x);
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return result;
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}
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asn1::EccP256CurvePoint operator()(const Compressed_Lsb_Y_0& y0) const
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{
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asn1::EccP256CurvePoint result = {};
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result.present = Vanetza_Security_EccP256CurvePoint_PR_compressed_y_0;
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assign(&result.choice.compressed_y_0, y0.x);
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return result;
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}
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asn1::EccP256CurvePoint operator()(const Compressed_Lsb_Y_1& y1) const
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{
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asn1::EccP256CurvePoint result = {};
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result.present = Vanetza_Security_EccP256CurvePoint_PR_compressed_y_1;
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assign(&result.choice.compressed_y_1, y1.x);
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return result;
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}
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asn1::EccP256CurvePoint operator()(const Uncompressed& unc) const
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{
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asn1::EccP256CurvePoint result = {};
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result.present = Vanetza_Security_EccP256CurvePoint_PR_uncompressedP256;
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assign(&result.choice.uncompressedP256.x, unc.x);
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assign(&result.choice.uncompressedP256.y, unc.y);
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return result;
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}
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};
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return boost::apply_visitor(visitor(), point);
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}
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} // namespace v3
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HashedId8 create_hashed_id8(const Vanetza_Security_HashedId8_t& in)
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{
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HashedId8 out;
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std::memcpy(out.data(), in.buf, std::min(out.size(), in.size));
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return out;
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}
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HashedId3 create_hashed_id3(const Vanetza_Security_HashedId3_t& in)
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{
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HashedId3 out;
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std::memcpy(out.data(), in.buf, std::min(out.size(), in.size));
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return out;
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}
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} // namespace security
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} // namespace vanetza
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