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Added support for "noise" over I1P/Tor to mask Tx transmission.

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This commit is contained in:
Lee Clagett 2019-05-16 16:34:22 -04:00
parent bdfc63ae4d
commit 3b24b1d082
28 changed files with 2731 additions and 162 deletions
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27
contrib/epee/include/net/levin_base.h
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@ -29,7 +29,11 @@
#ifndef _LEVIN_BASE_H_
#define _LEVIN_BASE_H_
#include <cstdint>
#include "byte_slice.h"
#include "net_utils_base.h"
#include "span.h"
#define LEVIN_SIGNATURE 0x0101010101012101LL //Bender's nightmare
@ -72,6 +76,8 @@ namespace levin
#define LEVIN_PACKET_REQUEST 0x00000001
#define LEVIN_PACKET_RESPONSE 0x00000002
#define LEVIN_PACKET_BEGIN 0x00000004
#define LEVIN_PACKET_END 0x00000008
#define LEVIN_PROTOCOL_VER_0 0
@ -118,9 +124,30 @@ namespace levin
}
}
//! \return Intialized levin header.
bucket_head2 make_header(uint32_t command, uint64_t msg_size, uint32_t flags, bool expect_response) noexcept;
//! \return A levin notification message.
byte_slice make_notify(int command, epee::span<const std::uint8_t> payload);
/*! Generate a dummy levin message.
\param noise_bytes Total size of the returned `byte_slice`.
\return `nullptr` if `noise_size` is smaller than the levin header.
Otherwise, a dummy levin message. */
byte_slice make_noise_notify(std::size_t noise_bytes);
/*! Generate 1+ levin messages that are identical to the noise message size.
\param noise Each levin message will be identical to the size of this
message. The bytes from this message will be used for padding.
\return `nullptr` if `noise.size()` is less than the levin header size.
Otherwise, a levin notification message OR 2+ levin fragment messages.
Each message is `noise.size()` in length. */
byte_slice make_fragmented_notify(const byte_slice& noise, int command, epee::span<const std::uint8_t> payload);
}
}
#endif //_LEVIN_BASE_H_