Method set_additional_data

src/iocore/net/ProxyProtocol.cc:550–587

}

int
ProxyProtocol::set_additional_data(std::string_view data)
{
  uint16_t len = data.length();
  Dbg(dbg_ctl_proxyprotocol_v2, "Parsing %d byte additional data", len);
  additional_data.assign(data);

  const char *p   = additional_data.data();
  const char *end = p + len;
  while (p != end) {
    if (end - p < 3) {
      // The size of a TLV entry must be 3 bytes or more
      Dbg(dbg_ctl_proxyprotocol_v2, "Remaining data (%ld bytes) is not enough for a TLV field", end - p);
      return -2;
    }

    // Type
    uint8_t type  = *p;
    p            += 1;

    // Length
    uint16_t length  = ntohs(*reinterpret_cast<const uint16_t *>(p));
    p               += 2;

    // Value
    if (end - p < length) {
      // Does not have enough data
      Dbg(dbg_ctl_proxyprotocol_v2, "Remaining data (%ld bytes) is not enough for a TLV field (ID:%u LEN:%hu)", end - p, type,
          length);
      return -3;
    }
    Dbg(dbg_ctl_proxyprotocol, "TLV: ID=%u LEN=%hu", type, length);
    tlv.emplace(type, std::string_view(p, length));
    p += length;
  }

  return 0;
}