Please tell me how to set permissions.

Question

Hello. I'm thinking about what I can do with peripheral rolls. 
 I have a question about GATT communication data. The following content was described in the Core Specification of the Bluetooth SIG. 
 The following access permissions are possible:
• Readable
• Writeable
• Readable and writable
The following encryption permissions are possible:
• Encryption required
• No encryption required
The following authentication permissions are possible:
• Authentication Required
• No Authentication Required
The following authorization permissions are possible:
• Authorization Required
• No Authorization Required 
 I think that the structure used when setting the data of the characteristic is "ble_add_char_params_t". How can I set the contents described? 
 Best regards.

sdi_kei · Accepted Answer

Hello. 
 I tried to summarize it with reference to what you taught me. Please tell me if this is the case. 
 The following content showed the same thing.

BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS ⇔ SEC_NO_ACCESS
BLE_GAP_CONN_SEC_MODE_SET_OPEN ⇔ SEC_OPEN
BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM ⇔ SEC_JUST_WORKS
BLE_GAP_CONN_SEC_MODE_SET_ENC_WITH_MITM ⇔ SEC_MITM
BLE_GAP_CONN_SEC_MODE_SET_SIGNED_NO_MITM ⇔ SEC_SIGNED
BLE_GAP_CONN_SEC_MODE_SET_SIGNED_WITH_MITM ⇔ SEC_SIGNED_MITM


The following access permissions are possible:
• Readable → ble_gatt_char_props_t read = 1
• Writeable → ble_gatt_char_props_t write = 1
• Readable and writable → ble_gatt_char_props_t read = 1, write = 1

The following encryption permissions are possible:
• Encryption required → security_req_t SEC_JUST_WORKS & SEC_MITM & SEC_SIGNED & SEC_SIGNED_MITM
• No encryption required → security_req_t SEC_OPEN

The following authentication permissions are possible:
• Authentication Required → security_req_t SEC_MITM & SEC_SIGNED & SEC_SIGNED_MITM
• No Authentication Required → security_req_t SEC_OPEN & SEC_JUST_WORKS

The following authorization permissions are possible:
• Authorization Required → security_req_t SEC_MITM & SEC_SIGNED & SEC_SIGNED_MITM
• No Authorization Required → security_req_t SEC_OPEN & SEC_JUST_WORKS
 
 Best regards.

Please tell me how to set permissions.

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