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Fixed endianess in TCP PDU. Added getters and setters. Getters and Setters use little endian

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This commit is contained in:
Santiago Alessandri
2011-08-17 11:15:51 -03:00
parent 54584d4cd7
commit 00a34dc20d
2 changed files with 131 additions and 58 deletions
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24
src/tcp.cpp
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@@ -34,11 +34,11 @@ const uint16_t Tins::TCP::DEFAULT_WINDOW = 32678;
Tins::TCP::TCP(uint16_t dport, uint16_t sport) : PDU(IPPROTO_TCP), _options_size(0), _total_options_size(0) {
std::memset(&_tcp, 0, sizeof(tcphdr));
_tcp.dport = Utils::net_to_host_s(dport);
_tcp.sport = Utils::net_to_host_s(sport);
_tcp.doff = sizeof(tcphdr) / sizeof(uint32_t);
_tcp.window = Utils::net_to_host_s(DEFAULT_WINDOW);
_tcp.check = 0;
this->dport(dport);
this->sport(sport);
this->data_offset(sizeof(tcphdr) / sizeof(uint32_t));
this->window(DEFAULT_WINDOW);
this->check(0);
}
Tins::TCP::~TCP() {
@@ -55,29 +55,33 @@ void Tins::TCP::sport(uint16_t new_sport) {
}
void Tins::TCP::seq(uint32_t new_seq) {
_tcp.seq = new_seq;
_tcp.seq = Utils::net_to_host_l(new_seq);
}
void Tins::TCP::ack_seq(uint32_t new_ack_seq) {
_tcp.ack_seq = new_ack_seq;
_tcp.ack_seq = Utils::net_to_host_l(new_ack_seq);
}
void Tins::TCP::window(uint16_t new_window) {
_tcp.window = new_window;
_tcp.window = Utils::net_to_host_s(new_window);
}
void Tins::TCP::check(uint16_t new_check) {
_tcp.check = new_check;
_tcp.check = Utils::net_to_host_s(new_check);
}
void Tins::TCP::urg_ptr(uint16_t new_urg_ptr) {
_tcp.urg_ptr = new_urg_ptr;
_tcp.urg_ptr = Utils::net_to_host_s(new_urg_ptr);
}
void Tins::TCP::payload(uint8_t *new_payload, uint32_t new_payload_size) {
inner_pdu(new RawPDU(new_payload, new_payload_size));
}
void Tins::TCP::data_offset(uint8_t new_doff) {
this->_tcp.doff = new_doff;
}
void Tins::TCP::set_mss(uint16_t value) {
value = Utils::net_to_host_s(value);
add_option(MSS, 2, (uint8_t*)&value);