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att_db: skip att_read_callback for ATT Read Blob Request if offset == value_len

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This commit is contained in:
Matthias Ringwald 2020-04-29 15:42:37 +02:00
parent bd8e4ef6a3
commit af1b7cdc1f
2 changed files with 10 additions and 6 deletions
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1
CHANGELOG.md
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@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
### Changed ### Changed
- Broadcom/Cypress: wait 300 ms after PatchRAM update in hci.c to assert Controller is ready - Broadcom/Cypress: wait 300 ms after PatchRAM update in hci.c to assert Controller is ready
- esp32: provide esp-idf/component/btstack/btstack_port_esp32.c and only minimal app_main in template/main/main.c - esp32: provide esp-idf/component/btstack/btstack_port_esp32.c and only minimal app_main in template/main/main.c
- att_db: skip att_read_callback for ATT Read Blob Request if offset == value_len
## Changes March 2020 ## Changes March 2020

15
src/ble/att_db.c
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@ -733,13 +733,16 @@ static uint16_t handle_read_blob_request2(att_connection_t * att_connection, uin
if (value_offset > it.value_len){ if (value_offset > it.value_len){
return setup_error_invalid_offset(response_buffer, request_type, handle); return setup_error_invalid_offset(response_buffer, request_type, handle);
} }
// store // prepare response
uint16_t offset = 1;
uint16_t bytes_copied = att_copy_value(&it, value_offset, response_buffer + offset, response_buffer_size - offset, att_connection->con_handle);
offset += bytes_copied;
response_buffer[0] = ATT_READ_BLOB_RESPONSE; response_buffer[0] = ATT_READ_BLOB_RESPONSE;
uint16_t offset = 1;
// fetch more data if available
if (value_offset < it.value_len){
uint16_t bytes_copied = att_copy_value(&it, value_offset, &response_buffer[offset], response_buffer_size - offset, att_connection->con_handle);
offset += bytes_copied;
}
return offset; return offset;
} }