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att_server: abort signed write validation on incoming new request

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This commit is contained in:
Matthias Ringwald 2019-05-02 11:42:03 +02:00
parent 9790be5f20
commit e0463bdc5e
2 changed files with 15 additions and 2 deletions
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1
CHANGELOG.md
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@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
- ESP32: use micro-ecc from 3rd-party as esp-idf removed it in their 3.3 release
- SM: store local CSRK
- ATT DB: call write callback for validated signed writes
- ATT Server: abort signed write validation on incoming new request
### Added
- SM: Track if connection encryption is based on LE Secure Connection pairing

16
src/ble/att_server.c
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@ -658,13 +658,25 @@ static void att_packet_handler(uint8_t packet_type, uint16_t handle, uint8_t *pa
// check size
if (size > sizeof(att_server->request_buffer)) {
log_info("att_packet_handler: dropping att pdu 0x%02x as size %u > att_server->request_buffer %u", packet[0], size, (int) sizeof(att_server->request_buffer));
log_info("drop att pdu 0x%02x as size %u > att_server->request_buffer %u", packet[0], size, (int) sizeof(att_server->request_buffer));
return;
}
#ifdef ENABLE_LE_SIGNED_WRITE
// abort signed write validation if a new request comes in (but finish previous signed write if possible)
if (att_server->state == ATT_SERVER_W4_SIGNED_WRITE_VALIDATION){
if (packet[0] == ATT_SIGNED_WRITE_COMMAND){
log_info("skip new signed write request as previous is in validation");
return;
} else {
log_info("abort signed write validation to process new request");
att_server->state = ATT_SERVER_IDLE;
}
}
#endif
// last request still in processing?
if (att_server->state != ATT_SERVER_IDLE){
log_info("att_packet_handler: skipping att pdu 0x%02x as server not idle (state %u)", packet[0], att_server->state);
log_info("skip att pdu 0x%02x as server not idle (state %u)", packet[0], att_server->state);
return;
}