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Added a const overload of TCP::get_flag. Added TCP::flags.

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This commit is contained in:
Matias Fontanini
2013-06-17 21:25:30 -03:00
parent acff8f1e1f
commit f385e4e975
4 changed files with 97 additions and 15 deletions
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27
src/tcp.cpp
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@@ -209,6 +209,10 @@ TCP::AltChecksums TCP::altchecksum() const {
}
small_uint<1> TCP::get_flag(Flags tcp_flag) {
return static_cast<const TCP&>(*this).get_flag(tcp_flag);
}
small_uint<1> TCP::get_flag(Flags tcp_flag) const {
switch(tcp_flag) {
case FIN:
return _tcp.fin;
@@ -240,6 +244,18 @@ small_uint<1> TCP::get_flag(Flags tcp_flag) {
};
}
small_uint<12> TCP::flags() const {
return (_tcp.res1 << 8) |
(_tcp.cwr << 7) |
(_tcp.ece << 6) |
(_tcp.urg << 5) |
(_tcp.ack << 4) |
(_tcp.psh << 3) |
(_tcp.rst << 2) |
(_tcp.syn << 1) |
_tcp.fin;
}
void TCP::set_flag(Flags tcp_flag, small_uint<1> value) {
switch(tcp_flag) {
case FIN:
@@ -269,6 +285,17 @@ void TCP::set_flag(Flags tcp_flag, small_uint<1> value) {
};
}
void TCP::flags(small_uint<12> value) {
_tcp.fin = (value & FIN) ? 1 : 0;
_tcp.syn = (value & SYN) ? 1 : 0;
_tcp.rst = (value & RST) ? 1 : 0;
_tcp.psh = (value & PSH) ? 1 : 0;
_tcp.ack = (value & ACK) ? 1 : 0;
_tcp.urg = (value & URG) ? 1 : 0;
_tcp.ece = (value & ECE) ? 1 : 0;
_tcp.cwr = (value & CWR) ? 1 : 0;
}
void TCP::add_option(const option &opt) {
_options.push_back(opt);
internal_add_option(opt);