youtubeUnblock/tls.h
2024-09-26 18:11:05 +03:00

54 lines
1.2 KiB
C

#ifndef TLS_H
#define TLS_H
#include "types.h"
/**
* Result of analyze_tls_data function
*/
struct tls_verdict {
int target_sni; /* google video hello packet */
int sni_offset; /* offset from start of tcp _payload_ */
int sni_len;
};
/**
* Processes the packet and finds TLS Client Hello information inside it.
* data pointer points to start of TLS Message (TCP Payload)
*/
struct tls_verdict analyze_tls_data(const uint8_t *data, uint32_t dlen);
struct fake_type {
#define FAKE_PAYLOAD_RANDOM 0
#define FAKE_PAYLOAD_DATA 1
// In default mode all other options will be skipped.
#define FAKE_PAYLOAD_DEFAULT 2
int type;
// Length of the final fake message.
// Pass 0 in RANDOM mode to make it random
uint16_t fake_len;
// Payload of the fake message of fake_len length.
// Will be omitted in RANDOM mode.
const char *fake_data;
// faking strategy of the fake packet.
// Does not support bitmask, pass standalone strategy.
// Pass 0 if you don't want any faking procedures.
unsigned int strategy;
};
/**
* Generates the fake client hello message
*/
int gen_fake_sni(struct fake_type type,
const void *iph, uint32_t iph_len,
const struct tcphdr *tcph, uint32_t tcph_len,
uint8_t *buf, uint32_t *buflen);
#endif /* TLS_H */