zapret/tpws/tamper.h

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2024-10-28 06:32:24 +00:00
#pragma once
#include <stdbool.h>
#include <stdint.h>
#include <sys/types.h>
#include "params.h"
#define SPLIT_FLAG_DISORDER 0x01
#define SPLIT_FLAG_OOB 0x02
typedef enum {UNKNOWN=0, HTTP, TLS} t_l7proto;
typedef struct
{
// common state
t_l7proto l7proto;
bool bFirstReplyChecked;
bool bTamperInCutoff;
bool b_ah_check;
char *hostname;
struct desync_profile *dp; // desync profile cache
} t_ctrack;
void apply_desync_profile(t_ctrack *ctrack, const struct sockaddr *dest);
void tamper_out(t_ctrack *ctrack, const struct sockaddr *dest, uint8_t *segment,size_t segment_buffer_size,size_t *size, size_t *split_pos, uint8_t *split_flags);
void tamper_in(t_ctrack *ctrack, uint8_t *segment,size_t segment_buffer_size,size_t *size);
// connection reset by remote leg
void rst_in(t_ctrack *ctrack);
// local leg closed connection (timeout waiting response ?)
void hup_out(t_ctrack *ctrack);