115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
/*
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* ESPRESSIF MIT License
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*
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* Copyright (c) 2020 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
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*
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* Permission is hereby granted for use on ESPRESSIF SYSTEMS products only, in which case,
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* it is free of charge, to any person obtaining a copy of this software and associated
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* documentation files (the "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the Software is furnished
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* to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or
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* substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef _HAP_PAIR_COMMON_H_
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#define _HAP_PAIR_COMMON_H_
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#include <stdint.h>
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#include <esp_hap_controllers.h>
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#define ENCRYPT_KEY_LEN 32
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#define POLY_AUTHTAG_LEN 16
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#define CURVE_KEY_LEN 32
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#define ED_SIGN_LEN 64
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#define NONCE_LEN 8
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#define STATE_M0 0
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#define STATE_M1 1
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#define STATE_M2 2
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#define STATE_M3 3
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#define STATE_M4 4
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#define STATE_M5 5
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#define STATE_M6 6
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#define STATE_VERIFIED 0x55
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#define STATE_INVALID 0xaa
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typedef enum {
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HAP_METHOD_RESERVED = 0,
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HAP_METHOD_PAIR_SETUP = 1,
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HAP_METHOD_PAIR_VERIFY = 2,
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HAP_METHOD_ADD_PAIRING = 3,
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HAP_METHOD_REMOVE_PAIRING = 4,
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HAP_METHOD_LIST_PAIRINGS = 5,
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} hap_pairing_methods_t;
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typedef enum {
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kTLVError_Unknown = 0x01,
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kTLVError_Authentication = 0x02,
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kTLVError_Backoff = 0x03,
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kTLVError_MaxPeers = 0x04,
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kTLVError_MaxTries = 0x05,
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kTLVError_Unavailable = 0x06,
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kTLVError_Busy = 0x07,
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} hap_tlv_error_t;
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typedef enum {
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kTLVType_Method = 0x00,
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kTLVType_Identifier = 0x01,
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kTLVType_Salt = 0x02,
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kTLVType_PublicKey = 0x03,
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kTLVType_Proof = 0x04,
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kTLVType_EncryptedData = 0x05,
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kTLVType_State = 0x06,
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kTLVType_Error = 0x07,
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kTLVType_RetryDelay = 0x08,
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kTLVType_Certificate = 0x09,
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kTLVType_Signature = 0x0a,
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kTLVType_Permissions = 0x0b,
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kTLVType_FragmentedData = 0x0c,
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kTLVType_FragmentLast = 0x0d,
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kTLVType_Flags = 0x13,
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kTLVType_OwnershipProofToken = 0x1A,
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kTLVType_ProductData = 0x1C,
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kTLVType_Separator = 0xff,
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} hap_tlv_type_t;
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typedef struct {
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uint8_t *bufptr;
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int bufsize;
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int curlen;
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} hap_tlv_data_t;
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typedef struct {
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uint8_t state;
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uint8_t encrypt_key[ENCRYPT_KEY_LEN];
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uint8_t decrypt_key[ENCRYPT_KEY_LEN];
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uint8_t encrypt_nonce[NONCE_LEN];
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uint8_t decrypt_nonce[NONCE_LEN];
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hap_ctrl_data_t *ctrl;
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uint64_t pid;
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int64_t ttl;
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int64_t prepare_time;
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/* TODO: As of now, this identifier will be the socket
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* number, since only http is supported.
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* Need to make this generic later.
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*/
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int conn_identifier;
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} hap_secure_session_t;
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void hap_tlv_data_init(hap_tlv_data_t *tlv_data, uint8_t *buf, int buf_size);
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int get_value_from_tlv(uint8_t *buf, int buf_len, uint8_t type, void *val, int val_size);
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int get_tlv_length(uint8_t *buf, int buflen, uint8_t type);
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int add_tlv(hap_tlv_data_t *tlv_data, uint8_t type, int len, void *val);
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void hap_prepare_error_tlv(uint8_t state, uint8_t error, void *buf, int buf_size, int *out_len);
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#endif /* _HAP_PAIR_COMMON_H_ */
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