1 /* 2 * Copyright (c) 2018-2019 Nordic Semiconductor ASA 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #if defined(CONFIG_BT_CTLR_FAL_SIZE) && defined(CONFIG_BT_CTLR_RL_SIZE) 8 #define LLL_FILTER_SIZE MAX(CONFIG_BT_CTLR_FAL_SIZE, CONFIG_BT_CTLR_RL_SIZE) 9 #elif defined(CONFIG_BT_CTLR_FAL_SIZE) 10 #define LLL_FILTER_SIZE CONFIG_BT_CTLR_FAL_SIZE 11 #elif defined(CONFIG_BT_CTLR_RL_SIZE) 12 #define LLL_FILTER_SIZE CONFIG_BT_CTLR_RL_SIZE 13 #else 14 #define LLL_FILTER_SIZE 8 15 #endif /* CONFIG_BT_CTLR_FAL_SIZE && CONFIG_BT_CTLR_RL_SIZE */ 16 17 #define IRK_SIZE 16 18 #define FILTER_IDX_NONE 0xFF 19 #define LLL_FILTER_BITMASK_ALL (BIT_MASK(LLL_FILTER_SIZE)) 20 21 #define LLL_FILTER_SIZE_MAX_BITMASK8 (1 * CHAR_BIT) 22 #define LLL_FILTER_SIZE_MAX_BITMASK16 (2 * CHAR_BIT) 23 24 struct lll_filter { 25 #if (LLL_FILTER_SIZE <= LLL_FILTER_SIZE_MAX_BITMASK8) 26 uint8_t enable_bitmask; 27 uint8_t addr_type_bitmask; 28 #elif (LLL_FILTER_SIZE <= LLL_FILTER_SIZE_MAX_BITMASK16) 29 uint16_t enable_bitmask; 30 uint16_t addr_type_bitmask; 31 #else 32 #error LLL_FILTER_SIZE must be <= LLL_FILTER_SIZE_MAX_BITMASK16 33 #endif 34 uint8_t bdaddr[LLL_FILTER_SIZE][BDADDR_SIZE]; 35 }; 36 37 /* Filter Accept List peer list */ 38 struct lll_fal { 39 uint8_t taken:1; 40 uint8_t id_addr_type:1; 41 uint8_t rl_idx; 42 bt_addr_t id_addr; 43 }; 44 45 /* Periodic Advertising List */ 46 struct lll_pal { 47 bt_addr_t id_addr; 48 uint8_t taken:1; 49 uint8_t id_addr_type:1; 50 uint8_t sid; 51 52 #if defined(CONFIG_BT_CTLR_PRIVACY) 53 uint8_t rl_idx; 54 #endif /* CONFIG_BT_CTLR_PRIVACY */ 55 }; 56 57 /* Resolve list */ 58 struct lll_resolve_list { 59 uint8_t taken:1; 60 uint8_t rpas_ready:1; 61 uint8_t pirk:1; 62 uint8_t lirk:1; 63 uint8_t dev:1; 64 uint8_t fal:1; 65 66 uint8_t id_addr_type:1; 67 bt_addr_t id_addr; 68 69 uint8_t local_irk[IRK_SIZE]; 70 uint8_t pirk_idx; 71 bt_addr_t curr_rpa; 72 bt_addr_t peer_rpa; 73 bt_addr_t *local_rpa; 74 #if defined(CONFIG_BT_CTLR_SW_DEFERRED_PRIVACY) 75 bt_addr_t target_rpa; 76 #endif 77 78 #if defined(CONFIG_BT_CTLR_SYNC_PERIODIC_ADV_LIST) 79 uint16_t pal:9; /* 0 - not present, 1 to 256 - lll_pal entry index */ 80 #endif /* CONFIG_BT_CTLR_SYNC_PERIODIC_ADV_LIST */ 81 }; 82 83 #if defined(CONFIG_BT_CTLR_SW_DEFERRED_PRIVACY) 84 /* Cache of known unknown peer RPAs */ 85 struct lll_prpa_cache { 86 uint8_t taken:1; 87 bt_addr_t rpa; 88 }; 89 90 /* Cache of known unknown target RPAs */ 91 struct lll_trpa_cache { 92 uint8_t rl_idx; 93 bt_addr_t rpa; 94 }; 95 #endif 96 97 extern uint8_t ull_filter_lll_fal_match(struct lll_filter const *const filter, 98 uint8_t addr_type, 99 uint8_t const *const addr, 100 uint8_t *devmatch_id); 101 extern bool ull_filter_lll_lrpa_used(uint8_t rl_idx); 102 extern bt_addr_t *ull_filter_lll_lrpa_get(uint8_t rl_idx); 103 extern uint8_t *ull_filter_lll_irks_get(uint8_t *count); 104 extern uint8_t ull_filter_lll_rl_idx(bool fal, uint8_t devmatch_id); 105 extern uint8_t ull_filter_lll_rl_irk_idx(uint8_t irkmatch_id); 106 extern bool ull_filter_lll_irk_in_fal(uint8_t rl_idx); 107 extern struct lll_filter *ull_filter_lll_get(bool fal); 108 extern struct lll_fal *ull_filter_lll_fal_get(void); 109 extern struct lll_resolve_list *ull_filter_lll_resolve_list_get(void); 110 extern bool ull_filter_lll_rl_idx_allowed(uint8_t irkmatch_ok, uint8_t rl_idx); 111 extern bool ull_filter_lll_rl_addr_allowed(uint8_t id_addr_type, 112 const uint8_t *id_addr, 113 uint8_t *const rl_idx); 114 extern bool ull_filter_lll_rl_addr_resolve(uint8_t id_addr_type, 115 const uint8_t *id_addr, 116 uint8_t rl_idx); 117 extern bool ull_filter_lll_rl_enabled(void); 118 #if defined(CONFIG_BT_CTLR_SW_DEFERRED_PRIVACY) 119 extern const struct lll_prpa_cache *ull_filter_lll_prpa_cache_get(void); 120 extern const struct lll_trpa_cache *ull_filter_lll_trpa_cache_get(void); 121 typedef void (*resolve_callback_t)(void *param); 122 extern uint8_t ull_filter_deferred_resolve(bt_addr_t *rpa, 123 resolve_callback_t cb); 124 extern uint8_t ull_filter_deferred_targeta_resolve(bt_addr_t *rpa, 125 uint8_t rl_idx, 126 resolve_callback_t cb); 127 #endif 128
