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lokinet/llarp/dns_rectypes.cpp

207 lines
5.2 KiB
C++

#include <llarp/dns_rectypes.hpp>
#include <llarp/dns.hpp> // for vput16bits()
namespace llarp
{
namespace dns
{
record::~record(){
};
bool
record::parse(std::vector< byte_t > bytes)
{
return bytes.size() ? true : false;
};
std::vector< byte_t >
record::to_bytes()
{
std::vector< byte_t > retval;
return retval;
};
type_1a::type_1a() : record()
{
this->ipaddr.h = 0;
}
bool
type_1a::parse(std::vector< byte_t > bytes)
{
if(bytes.size() < 4)
{
LogWarn("Less than 4 bytes passed in");
return false;
}
// endian problems? no, it should come in, in network order
/*
LogDebug("Read ", std::to_string(bytes[0]), ".",
std::to_string(bytes[1]), ".",
std::to_string(bytes[2]), ".",
std::to_string(bytes[3]));
*/
this->ipaddr = ipaddr_ipv4_bits(bytes[3], bytes[2], bytes[1], bytes[0]);
// LogDebug("Test ", this->ipaddr);
return bytes.size() ? true : false;
};
std::vector< byte_t >
type_1a::to_bytes()
{
std::vector< byte_t > retval;
vput16bits(retval, 4); // rdLength
vput32bits(retval, this->ipaddr.h); // write IP
return retval;
};
type_2ns::type_2ns() : record(){};
bool
type_2ns::parse(std::vector< byte_t > bytes)
{
// trim last 2 bytes... probably the size
this->ns = std::string(reinterpret_cast< char* >(bytes.data()),
bytes.size() - 2);
return true;
};
std::vector< byte_t >
type_2ns::to_bytes()
{
std::vector< byte_t > retval;
vput16bits(retval, 2 + this->ns.length()); // rdLength
vcode_domain(retval, this->ns);
return retval;
};
type_5cname::type_5cname() : record(){};
bool
type_5cname::parse(std::vector< byte_t > bytes)
{
// trim last 2 bytes... probably the size
this->cname =
std::string(reinterpret_cast< char* >(bytes.data()), bytes.size());
// LogDebug("type5 parsed ", this->cname);
return true;
};
std::vector< byte_t >
type_5cname::to_bytes()
{
std::vector< byte_t > retval;
vput16bits(retval, 2 + this->cname.length()); // rdLength
vcode_domain(retval, this->cname);
return retval;
};
type_6soa::type_6soa() : record()
{
this->serial = 0;
this->refresh = 0;
this->retry = 0;
this->expire = 0;
this->minimum = 0;
}
bool
type_6soa::parse(std::vector< byte_t > bytes)
{
// FIXME: implmement me
// this->cname = std::string(reinterpret_cast<char *>(bytes.data()),
// bytes.size());
return bytes.size() ? true : false;
};
std::vector< byte_t >
type_6soa::to_bytes()
{
std::vector< byte_t > retval;
vput16bits(
retval,
4 + this->mname.length() + this->rname.length() + 20); // rdLength
vcode_domain(retval, this->mname);
vcode_domain(retval, this->rname);
vput32bits(retval, this->serial);
vput32bits(retval, this->refresh);
vput32bits(retval, this->retry);
vput32bits(retval, this->expire);
vput32bits(retval, this->minimum);
return retval;
};
type_12ptr::type_12ptr() : record(){};
bool
type_12ptr::parse(std::vector< byte_t > bytes)
{
this->revname =
std::string(reinterpret_cast< char* >(bytes.data()), bytes.size());
return bytes.size() ? true : false;
};
std::vector< byte_t >
type_12ptr::to_bytes()
{
std::vector< byte_t > retval;
// revname has 2 extra bytes at the end we don't want or need
vput16bits(retval, 2 + this->revname.length()); // rdLength
vcode_domain(retval, this->revname);
// vput16bits(retval, this->revname.length()); // rdLength
// vcode_domain(retval, this->revname.substr(0, this->revname.size() -
// 2));
return retval;
};
type_15mx::type_15mx() : record()
{
this->priority = 99;
}
bool
type_15mx::parse(std::vector< byte_t > bytes)
{
this->mx =
std::string(reinterpret_cast< char* >(bytes.data()), bytes.size());
// LogInfo("parsed ", this->mx);
return true;
};
std::vector< byte_t >
type_15mx::to_bytes()
{
std::vector< byte_t > retval;
vput16bits(retval, 2 + (2 + this->mx.length())); // rdLength
vput16bits(retval, this->priority); // priority
vcode_domain(retval, this->mx);
return retval;
};
type_16txt::type_16txt() : record(){};
bool
type_16txt::parse(std::vector< byte_t > bytes)
{
this->txt = std::string(reinterpret_cast< char* >(bytes.data()),
bytes.size() - 1);
return true;
};
std::vector< byte_t >
type_16txt::to_bytes()
{
std::vector< byte_t > retval;
vput16bits(retval, 1 + this->txt.length()); // rdLength
retval.push_back(this->txt.length()); // length
for(auto it : this->txt)
{
retval.push_back(it);
}
return retval;
};
} // namespace dns
} // namespace llarp