1 /*  Bluetooth Mesh */
2 
3 /*
4  * SPDX-FileCopyrightText: 2017 Intel Corporation
5  * SPDX-FileContributor: 2018-2021 Espressif Systems (Shanghai) CO LTD
6  *
7  * SPDX-License-Identifier: Apache-2.0
8  */
9 
10 #ifndef _TRANSPORT_H_
11 #define _TRANSPORT_H_
12 
13 #include "net.h"
14 
15 #ifdef __cplusplus
16 extern "C" {
17 #endif
18 
19 #define TRANS_SEQ_AUTH_NVAL            0xffffffffffffffff
20 
21 #define BLE_MESH_SDU_UNSEG_MAX         11
22 #define BLE_MESH_CTL_SEG_SDU_MAX       8
23 #define BLE_MESH_APP_SEG_SDU_MAX       12
24 #define BLE_MESH_TX_SDU_MAX            (CONFIG_BLE_MESH_TX_SEG_MAX * 12)
25 
26 #define TRANS_SEQ_ZERO_MASK            ((uint16_t)BIT_MASK(13))
27 #define TRANS_CTL_OP_MASK              ((uint8_t)BIT_MASK(7))
28 #define TRANS_CTL_OP(data)             ((data)[0] & TRANS_CTL_OP_MASK)
29 #define TRANS_CTL_HDR(op, seg)         ((op & TRANS_CTL_OP_MASK) | (seg << 7))
30 
31 #define TRANS_CTL_OP_ACK               0x00
32 #define TRANS_CTL_OP_FRIEND_POLL       0x01
33 #define TRANS_CTL_OP_FRIEND_UPDATE     0x02
34 #define TRANS_CTL_OP_FRIEND_REQ        0x03
35 #define TRANS_CTL_OP_FRIEND_OFFER      0x04
36 #define TRANS_CTL_OP_FRIEND_CLEAR      0x05
37 #define TRANS_CTL_OP_FRIEND_CLEAR_CFM  0x06
38 #define TRANS_CTL_OP_FRIEND_SUB_ADD    0x07
39 #define TRANS_CTL_OP_FRIEND_SUB_REM    0x08
40 #define TRANS_CTL_OP_FRIEND_SUB_CFM    0x09
41 #define TRANS_CTL_OP_HEARTBEAT         0x0a
42 
43 struct bt_mesh_ctl_friend_poll {
44     uint8_t  fsn;
45 } __packed;
46 
47 struct bt_mesh_ctl_friend_update {
48     uint8_t  flags;
49     uint32_t iv_index;
50     uint8_t  md;
51 } __packed;
52 
53 struct bt_mesh_ctl_friend_req {
54     uint8_t  criteria;
55     uint8_t  recv_delay;
56     uint8_t  poll_to[3];
57     uint16_t prev_addr;
58     uint8_t  num_elem;
59     uint16_t lpn_counter;
60 } __packed;
61 
62 struct bt_mesh_ctl_friend_offer {
63     uint8_t  recv_win;
64     uint8_t  queue_size;
65     uint8_t  sub_list_size;
66     int8_t   rssi;
67     uint16_t frnd_counter;
68 } __packed;
69 
70 struct bt_mesh_ctl_friend_clear {
71     uint16_t lpn_addr;
72     uint16_t lpn_counter;
73 } __packed;
74 
75 struct bt_mesh_ctl_friend_clear_confirm {
76     uint16_t lpn_addr;
77     uint16_t lpn_counter;
78 } __packed;
79 
80 #define BLE_MESH_FRIEND_SUB_MIN_LEN (1 + 2)
81 struct bt_mesh_ctl_friend_sub {
82     uint8_t  xact;
83     uint16_t addr_list[5];
84 } __packed;
85 
86 struct bt_mesh_ctl_friend_sub_confirm {
87     uint8_t xact;
88 } __packed;
89 
90 uint8_t bt_mesh_get_seg_retrans_num(void);
91 
92 int32_t bt_mesh_get_seg_retrans_timeout(uint8_t ttl);
93 
94 void bt_mesh_set_hb_sub_dst(uint16_t addr);
95 
96 struct bt_mesh_app_key *bt_mesh_app_key_find(uint16_t app_idx);
97 
98 bool bt_mesh_tx_in_progress(void);
99 
100 void bt_mesh_rx_reset(bool erase);
101 void bt_mesh_tx_reset(void);
102 void bt_mesh_rx_reset_single(uint16_t src);
103 void bt_mesh_tx_reset_single(uint16_t dst);
104 
105 int bt_mesh_ctl_send(struct bt_mesh_net_tx *tx, uint8_t ctl_op, void *data,
106                      size_t data_len, const struct bt_mesh_send_cb *cb,
107                      void *cb_data);
108 
109 int bt_mesh_trans_send(struct bt_mesh_net_tx *tx, struct net_buf_simple *msg,
110                        const struct bt_mesh_send_cb *cb, void *cb_data);
111 
112 int bt_mesh_trans_recv(struct net_buf_simple *buf, struct bt_mesh_net_rx *rx);
113 
114 void bt_mesh_trans_init(void);
115 void bt_mesh_trans_deinit(bool erase);
116 
117 bool bt_mesh_rpl_check(struct bt_mesh_net_rx *rx, struct bt_mesh_rpl **match);
118 
119 void bt_mesh_heartbeat_send(void);
120 
121 int bt_mesh_app_key_get(const struct bt_mesh_subnet *subnet, uint16_t app_idx,
122                         const uint8_t **key, uint8_t *aid,  uint8_t role, uint16_t dst);
123 
124 #ifdef __cplusplus
125 }
126 #endif
127 
128 #endif /* _TRANSPORT_H_ */
129