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diff --git a/stack/smp/smp_int.h b/stack/smp/smp_int.h
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+/****************************************************************************/
+/* */
+/* Name: smp_int.h */
+/* */
+/* Function this file contains internally used SMP definitions */
+/* */
+/* Copyright (c) 1999-2008, Broadcom Corp., All Rights Reserved. */
+/* WIDCOMM Bluetooth Core. Proprietary and confidential. */
+/* */
+/*****************************************************************************/
+#ifndef SMP_INT_H
+#define SMP_INT_H
+
+#include "btu.h"
+#include "smp_api.h"
+
+#define SMP_MODEL_ENC_ONLY 0
+#define SMP_MODEL_PASSKEY 1
+#define SMP_MODEL_OOB 2
+#define SMP_MODEL_KEY_NOTIF 3
+#define SMP_MODEL_MAX 4
+typedef UINT8 tSMP_ASSO_MODEL;
+
+
+#ifndef SMP_MAX_CONN
+ #define SMP_MAX_CONN 2
+#endif
+
+#define SMP_WAIT_FOR_RSP_TOUT 30
+#define SMP_WAIT_FOR_REL_DELAY_TOUT 5
+/* SMP L2CAP command code */
+#define SMP_OPCODE_PAIRING_REQ 0x01
+#define SMP_OPCODE_PAIRING_RSP 0x02
+#define SMP_OPCODE_CONFIRM 0x03
+#define SMP_OPCODE_INIT 0x04
+#define SMP_OPCODE_PAIRING_FAILED 0x05
+#define SMP_OPCODE_ENCRYPT_INFO 0x06
+#define SMP_OPCODE_MASTER_ID 0x07
+#define SMP_OPCODE_IDENTITY_INFO 0x08
+#define SMP_OPCODE_ID_ADDR 0x09
+#define SMP_OPCODE_SIGN_INFO 0x0A
+#define SMP_OPCODE_SEC_REQ 0x0B
+#define SMP_OPCODE_MAX (SMP_OPCODE_SEC_REQ + 1)
+
+/* SMP events */
+#define SMP_PAIRING_REQ_EVT SMP_OPCODE_PAIRING_REQ
+#define SMP_PAIRING_RSP_EVT SMP_OPCODE_PAIRING_RSP
+#define SMP_CONFIRM_EVT SMP_OPCODE_CONFIRM
+#define SMP_RAND_EVT SMP_OPCODE_INIT
+#define SMP_PAIRING_FAILED_EVT SMP_OPCODE_PAIRING_FAILED
+#define SMP_ENCRPTION_INFO_EVT SMP_OPCODE_ENCRYPT_INFO
+#define SMP_MASTER_ID_EVT SMP_OPCODE_MASTER_ID
+#define SMP_ID_INFO_EVT SMP_OPCODE_IDENTITY_INFO
+#define SMP_ID_ADDR_EVT SMP_OPCODE_ID_ADDR
+#define SMP_SIGN_INFO_EVT SMP_OPCODE_SIGN_INFO
+#define SMP_SECURITY_REQ_EVT SMP_OPCODE_SEC_REQ
+
+#define SMP_SELF_DEF_EVT SMP_SECURITY_REQ_EVT
+#define SMP_KEY_READY_EVT (SMP_SELF_DEF_EVT + 1)
+#define SMP_ENCRYPTED_EVT (SMP_SELF_DEF_EVT + 2)
+#define SMP_L2CAP_CONN_EVT (SMP_SELF_DEF_EVT + 3)
+#define SMP_L2CAP_DISCONN_EVT (SMP_SELF_DEF_EVT + 4)
+#define SMP_IO_RSP_EVT (SMP_SELF_DEF_EVT + 5)
+#define SMP_API_SEC_GRANT_EVT (SMP_SELF_DEF_EVT + 6)
+#define SMP_TK_REQ_EVT (SMP_SELF_DEF_EVT + 7)
+#define SMP_AUTH_CMPL_EVT (SMP_SELF_DEF_EVT + 8)
+#define SMP_ENC_REQ_EVT (SMP_SELF_DEF_EVT + 9)
+#define SMP_BOND_REQ_EVT (SMP_SELF_DEF_EVT + 10)
+#define SMP_DISCARD_SEC_REQ_EVT (SMP_SELF_DEF_EVT + 11)
+#define SMP_RELEASE_DELAY_EVT (SMP_SELF_DEF_EVT + 12)
+#define SMP_RELEASE_DELAY_TOUT_EVT (SMP_SELF_DEF_EVT + 13)
+typedef UINT8 tSMP_EVENT;
+#define SMP_MAX_EVT SMP_RELEASE_DELAY_TOUT_EVT + 1
+
+/* auumption it's only using the low 8 bits, if bigger than that, need to expand it to be 16 bits */
+#define SMP_SEC_KEY_MASK 0x00ff
+
+/* SMP pairing state */
+enum
+{
+ SMP_ST_IDLE,
+ SMP_ST_WAIT_APP_RSP,
+ SMP_ST_SEC_REQ_PENDING,
+ SMP_ST_PAIR_REQ_RSP,
+ SMP_ST_WAIT_CONFIRM,
+ SMP_ST_CONFIRM,
+ SMP_ST_RAND,
+ SMP_ST_ENC_PENDING,
+ SMP_ST_BOND_PENDING,
+ SMP_ST_RELEASE_DELAY,
+ SMP_ST_MAX
+};
+typedef UINT8 tSMP_STATE;
+
+/* random and encrption activity state */
+enum
+{
+ SMP_GEN_COMPARE = 1,
+ SMP_GEN_CONFIRM,
+
+ SMP_GEN_DIV_LTK,
+ SMP_GEN_DIV_CSRK,
+ SMP_GEN_RAND_V,
+ SMP_GEN_TK,
+ SMP_GEN_SRAND_MRAND,
+ SMP_GEN_SRAND_MRAND_CONT
+};
+
+enum
+{
+ SMP_KEY_TYPE_TK,
+ SMP_KEY_TYPE_CFM,
+ SMP_KEY_TYPE_CMP,
+ SMP_KEY_TYPE_STK,
+ SMP_KEY_TYPE_LTK
+};
+typedef struct
+{
+ UINT8 key_type;
+ UINT8* p_data;
+}tSMP_KEY;
+
+typedef union
+{
+ UINT8 *p_data; /* UINT8 type data pointer */
+ tSMP_KEY key;
+ UINT16 reason;
+}tSMP_INT_DATA;
+
+/* internal status mask */
+#define SMP_PAIR_FLAGS_WE_STARTED_DD (1)
+#define SMP_PAIR_FLAGS_PEER_STARTED_DD (1 << 1)
+#define SMP_PAIR_FLAGS_CMD_CONFIRM (1 << SMP_OPCODE_CONFIRM) /* 1 << 3 */
+#define SMP_PAIR_FLAG_ENC_AFTER_PAIR (1 << 4)
+
+/* check if authentication requirement need MITM protection */
+#define SMP_NO_MITM_REQUIRED(x) (((x) & SMP_AUTH_YN_BIT) == 0)
+
+#define SMP_ENCRYT_KEY_SIZE 16
+#define SMP_ENCRYT_DATA_SIZE 16
+#define SMP_ECNCRPYT_STATUS HCI_SUCCESS
+
+/* SMP control block */
+typedef struct
+{
+ tSMP_CALLBACK *p_callback;
+ TIMER_LIST_ENT rsp_timer_ent;
+ UINT8 trace_level;
+
+ BD_ADDR pairing_bda;
+
+ tSMP_STATE state;
+ UINT8 failure;
+ UINT8 status;
+ UINT8 role;
+ UINT8 flags;
+ UINT8 cb_evt;
+
+ tSMP_SEC_LEVEL sec_level;
+ BOOLEAN connect_initialized;
+ BT_OCTET16 confirm;
+ BT_OCTET16 rconfirm;
+ BT_OCTET16 rrand;
+ BT_OCTET16 rand;
+ tSMP_IO_CAP peer_io_caps;
+ tSMP_IO_CAP loc_io_caps;
+ tSMP_OOB_FLAG peer_oob_flag;
+ tSMP_OOB_FLAG loc_oob_flag;
+ tSMP_AUTH_REQ peer_auth_req;
+ tSMP_AUTH_REQ loc_auth_req;
+ UINT8 peer_enc_size;
+ UINT8 loc_enc_size;
+ UINT8 peer_i_key;
+ UINT8 peer_r_key;
+ UINT8 loc_i_key;
+ UINT8 loc_r_key;
+
+ BT_OCTET16 tk;
+ BT_OCTET16 ltk;
+ UINT16 div;
+ BT_OCTET16 csrk; /* storage for local CSRK */
+ UINT16 ediv;
+ BT_OCTET8 enc_rand;
+
+ UINT8 rand_enc_proc;
+ BOOLEAN last_cmd;
+ BD_ADDR local_bda;
+ BOOLEAN is_pair_cancel;
+ BOOLEAN discard_sec_req;
+#if SMP_CONFORMANCE_TESTING == TRUE
+ BOOLEAN enable_test_confirm_val;
+ BT_OCTET16 test_confirm;
+ BOOLEAN enable_test_rand_val;
+ BT_OCTET16 test_rand;
+ BOOLEAN enable_test_pair_fail;
+ UINT8 pair_fail_status;
+ BOOLEAN remove_fixed_channel_disable;
+#endif
+
+}tSMP_CB;
+
+/* Server Action functions are of this type */
+typedef void (*tSMP_ACT)(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#if SMP_DYNAMIC_MEMORY == FALSE
+ SMP_API extern tSMP_CB smp_cb;
+#else
+ SMP_API extern tSMP_CB *smp_cb_ptr;
+#define smp_cb (*smp_cb_ptr)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/* Functions provided by att_main.c */
+SMP_API extern void smp_init (void);
+
+#if SMP_CONFORMANCE_TESTING == TRUE
+/* Used only for conformance testing */
+SMP_API extern void smp_set_test_confirm_value (BOOLEAN enable, UINT8 *p_c_value);
+SMP_API extern void smp_set_test_rand_value (BOOLEAN enable, UINT8 *p_c_value);
+SMP_API extern void smp_set_test_pair_fail_status (BOOLEAN enable, UINT8 status);
+SMP_API extern void smp_remove_fixed_channel_disable (BOOLEAN disable);
+#endif
+/* smp main */
+extern void smp_sm_event(tSMP_CB *p_cb, tSMP_EVENT event, void *p_data);
+
+extern void smp_proc_sec_request(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_pair_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_pair_fail(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_init(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_sec_request(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_pair_fail(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_init(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_enc_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_master_id(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_id_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_id_addr(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_sec_grant(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_sec_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_sl_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_start_enc(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_enc_cmpl(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_discard(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_release_delay(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_release_delay_tout(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_pairing_cmpl(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_decide_asso_model(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_app_cback(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_compare(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_check_auth_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_io_rsp(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_id_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_enc_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_csrk_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_ltk_reply(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_pair_cmd(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_pair_terminate(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_idle_terminate(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_pair_rsp(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_key_distribution(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_srk_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_csrk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+/* smp_l2c */
+extern void smp_l2cap_if_init (void);
+
+/* smp utility */
+extern BOOLEAN smp_send_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+extern void smp_cb_cleanup(tSMP_CB *p_cb);
+extern void smp_reset_control_value(tSMP_CB *p_cb);
+extern void smp_proc_pairing_cmpl(tSMP_CB *p_cb);
+extern void smp_convert_string_to_tk(BT_OCTET16 tk, UINT32 passkey);
+extern void smp_mask_enc_key(UINT8 loc_enc_size, UINT8 * p_data);
+extern void smp_rsp_timeout(TIMER_LIST_ENT *p_tle);
+extern void smp_xor_128(BT_OCTET16 a, BT_OCTET16 b);
+extern BOOLEAN smp_encrypt_data (UINT8 *key, UINT8 key_len,
+ UINT8 *plain_text, UINT8 pt_len,
+ tSMP_ENC *p_out);
+/* smp key */
+extern void smp_generate_confirm (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_compare (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_stk (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_ltk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_passkey (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_genenrate_rand_cont(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+
+/* smp main util */
+extern void smp_set_state(tSMP_STATE state);
+extern tSMP_STATE smp_get_state(void);
+
+#endif /* SMP_INT_H */
+