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hci: only send HCI Read Local Encryption Key Size if supported by Controller

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This commit is contained in:
Matthias Ringwald 2020-03-31 23:36:04 +02:00
parent 7a4d61a383
commit 6e058d3f51
3 changed files with 18 additions and 7 deletions
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5
CHANGELOG.md
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@ -18,11 +18,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
### Fixed
- GAP: fixed gap_set_scan_parameters() if issued right before gap_start_scan()
- HCI: only send HCI Read Local Encryption Key Size if supported by Controller
### Added
GATT Client: allow to register for any notification/indication and/or any connection
- GATT Client: allow to register for any notification/indication and/or any connection
hci_cmd: added hci_read_inquiry_scan_activity and hci_write_inquiry_scan_activity
chipset: assert hci packet buffers are suitable for firmware upload or patches (atwilc3000,bcm,cc256x,intel)
- chipset: assert hci packet buffers are suitable for firmware upload or patches (atwilc3000,bcm,cc256x,intel)
### Changed
- AVRCP Target: volume in avrcp_target_volume_changed is reported as current value in interim response to register for volume change notifications

17
src/hci.c
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@ -2022,8 +2022,9 @@ static void event_handler(uint8_t *packet, int size){
(packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+18] & 0x08) | // bit 3 = Octet 18, bit 3 / Write Default Erroneous Data Reporting
((packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+34] & 0x01) << 4) | // bit 4 = Octet 34, bit 0 / LE Write Suggested Default Data Length
((packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+35] & 0x08) << 2) | // bit 5 = Octet 35, bit 3 / LE Read Maximum Data Length
((packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+35] & 0x20) << 1); // bit 6 = Octet 35, bit 5 / LE Set Default PHY
log_info("Local supported commands summary 0x%02x", hci_stack->local_supported_commands[0]);
((packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+35] & 0x20) << 1) | // bit 6 = Octet 35, bit 5 / LE Set Default PHY
((packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+20] & 0x10) << 3); // bit 7 = Octet 20, bit 4 / Read Encryption Key Size
log_info("Local supported commands summary 0x%02x", hci_stack->local_supported_commands[0]);
}
#ifdef ENABLE_CLASSIC
if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_write_synchronous_flow_control_enable)){
@ -2316,11 +2317,19 @@ static void event_handler(uint8_t *packet, int size){
if (hci_is_le_connection(conn)){
// For LE, we accept connection as encrypted
conn->authentication_flags |= CONNECTION_ENCRYPTED;
hci_emit_security_level(handle, gap_security_level_for_connection(conn));
}
#ifdef ENABLE_CLASSIC
else {
// For Classic, we need to validate encryption key size first
conn->bonding_flags |= BONDING_SEND_READ_ENCRYPTION_KEY_SIZE;
if ((hci_stack->local_supported_commands[0] & 0x80) != 0){
// For Classic, we need to validate encryption key size first, if possible (== supported by Controller)
conn->bonding_flags |= BONDING_SEND_READ_ENCRYPTION_KEY_SIZE;
} else {
// if not, pretend everything is perfect
conn->encryption_key_size = 16;
conn->authentication_flags |= CONNECTION_ENCRYPTED;
hci_emit_security_level(handle, gap_security_level_for_connection(conn));
}
}
#endif
} else {

3
src/hci.h
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@ -800,7 +800,8 @@ typedef struct {
/* 3 - Write Default Erroneous Data Reporting (Octet 18/bit 3) */
/* 4 - LE Write Suggested Default Data Length (Octet 34/bit 0) */
/* 5 - LE Read Maximum Data Length (Octet 35/bit 3) */
/* 6 - LE Set Default PHY (Octet 35/bit 5) */
/* 6 - LE Set Default PHY (Octet 35/bit 5) */
/* 7 - Read Encryption Key Size (Octet 20/bit 4) */
uint8_t local_supported_commands[1];
/* bluetooth device information from hci read local version information */