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Code Issues Releases Wiki Activity

Added TCP options

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This commit is contained in:
matias
2011-08-12 08:14:29 -03:00
parent 6288574f85
commit 46c00acbc6
2 changed files with 88 additions and 13 deletions
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27
include/tcp.h
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@@ -23,6 +23,7 @@
#define __TCP_H
#include <vector>
#include <stdint.h>
#ifndef WIN32
#include <endian.h>
@@ -43,8 +44,14 @@ namespace Tins {
ECE,
CWR
};
enum Options {
MSS = 2,
TSOPT = 8
};
TCP(uint16_t dport = 0, uint16_t sport = 0);
~TCP();
inline uint16_t dport() const { return _tcp.dport; }
inline uint16_t sport() const { return _tcp.sport; }
@@ -63,9 +70,10 @@ namespace Tins {
void urg_ptr(uint16_t new_urg_ptr);
void payload(uint8_t *new_payload, uint32_t new_payload_size);
void set_mss(uint16_t value);
void set_timestamp(uint32_t value, uint32_t reply);
void set_flag(Flags tcp_flag, uint8_t value);
uint16_t do_checksum() const;
void add_option(Options tcp_option, uint8_t length = 0, uint8_t *data = 0);
/* Virtual methods */
uint32_t header_size() const;
@@ -106,11 +114,24 @@ namespace Tins {
uint16_t urg_ptr;
} __attribute__((packed));
struct TCPOption {
TCPOption(uint8_t okind, uint8_t olength, uint8_t *odata) :
kind(okind), length(olength), data(odata) { }
uint8_t *write(uint8_t *buffer);
uint8_t kind, length;
uint8_t *data;
};
static const uint16_t DEFAULT_WINDOW;
uint16_t do_checksum(uint8_t *start, uint8_t *end) const;
tcphdr _tcp;
std::vector<TCPOption> _options;
uint8_t *_payload;
uint32_t _payload_size;
uint32_t _payload_size, _options_size, _total_options_size;
};
};