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Created UDP PDU. Done some documentation on TCP.

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This commit is contained in:
Matias F
2011-08-12 20:22:45 -03:00
parent d59cec94b6
commit 35c1a6e65d
5 changed files with 65 additions and 4 deletions
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4
src/tcp.cpp
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@@ -37,6 +37,7 @@ Tins::TCP::TCP(uint16_t dport, uint16_t sport) : PDU(IPPROTO_TCP), _payload(0),
_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;
}
Tins::TCP::~TCP() {
@@ -153,7 +154,8 @@ void Tins::TCP::write_serialization(uint8_t *buffer, uint32_t total_sz) {
}
memcpy(buffer, _payload, _payload_size);
_tcp.check = Utils::net_to_host_s(do_checksum(tcp_start + sizeof(tcphdr), buffer));
if(!_tcp.check)
_tcp.check = Utils::net_to_host_s(do_checksum(tcp_start + sizeof(tcphdr), buffer));
memcpy(tcp_start, &_tcp, sizeof(tcphdr));
}