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77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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#ifndef __SAM_COMMON_H
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#define __SAM_COMMON_H
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#include "common.h"
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static const uint8_t SAM_TX_APDU_PREFIX_LENGTH = 5;
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static const uint8_t SAM_TX_ASN1_PREFIX_LENGTH = 6;
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static const uint8_t SAM_RX_ASN1_PREFIX_LENGTH = 5;
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int sam_rxtx(const uint8_t *data, uint16_t n, uint8_t *resp, uint16_t *resplen);
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void switch_clock_to_ticks(void);
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void switch_clock_to_countsspclk(void);
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// Backwards-compatible wrapper that calls sam_send_payload_ex with scFlag=0x00.
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int sam_send_payload(
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const uint8_t addr_src,
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const uint8_t addr_dest,
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const uint8_t addr_reply,
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const uint8_t *const payload,
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const uint16_t *payload_len,
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uint8_t *response,
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uint16_t *response_len
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);
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// Extended variant that lets the caller set the Grace routing scFlag byte.
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//
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// The Grace routing header is 6 bytes: FROM, TO, REPLY-TO, 0x00, 0x00, scFlag.
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// During InitAuth the scFlag is 0x00; after the SAM authenticates the host it
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// returns a session-bound scFlag (typically 0x81) that must be echoed in the
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// routing header of every subsequent wrapped APDU (ContinueAuth, wrap/unwrap).
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// The original sam_send_payload hardcoded scFlag=0x00 which made it impossible
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// to drive a real secure-channel session. New SC code paths must use this _ex
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// variant instead.
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int sam_send_payload_ex(
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const uint8_t addr_src,
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const uint8_t addr_dest,
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const uint8_t addr_reply,
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const uint8_t scFlag,
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const uint8_t *const payload,
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const uint16_t *payload_len,
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uint8_t *response,
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uint16_t *response_len
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);
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int sam_get_version(bool info);
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int sam_get_serial_number(void);
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uint8_t *sam_find_asn1_node(const uint8_t *root, const uint8_t type);
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void sam_append_asn1_node(const uint8_t *root, const uint8_t *node, uint8_t type, const uint8_t *const data, uint8_t len);
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void sam_send_ack(void);
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uint16_t sam_copy_payload_nfc2sam(uint8_t *sam_tx, uint8_t *nfc_rx, uint8_t nfc_len);
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uint16_t sam_copy_payload_sam2nfc(uint8_t *nfc_tx_buf, uint8_t *sam_rx_buf);
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#endif
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