This commit fixes 'Impersonation in Passkey entry protocol'
(CVE-2020-26558) and suggests fixes for other vulnerabilites like
'Impersonation in the Pin Pairing Protocol' (CVE-2020-26555) and
'Authentication of the LE Legacy Pairing Protocol'
CVE-2020-26558 can be easily implemented if the peer device can
impersonate our public key. This commit adds a check by comparing our
and received public key and returns failed pairing if keys are same.
This commit also adds comments suggesting to use secure connection when
supported by all devices.
use eventgroup to sync spp_vfs_write
each connection has a switch_delay_timer not sharing a one
revert functions like spp_find_slot_by_xxx
fix vfs read bug when peer close
1. Add g_av_with_rc to avrc_tg_init function
2. Remove g_av_open_fail
3. Add comment in API files
4. Add a2dp init & deinit state variable to inidcate a2dp statement
1. Add reaction for a2dp snk & src disconn req when no link up
2. Change state machine set before EVT upto APP layer in some cases
3. Add bool open_fail to choose whether post disconnection evt to app layer
1. Add logs for SPP not enabled successfully
2. Add information to Applicatioin layer that the A2DP is connecting to peer device
Regular BTC and BTU Task name & Add BTC Init protection
1. Regular the BTC Task Name to Close a Github issue
Closes https://github.com/espressif/esp-idf/issues/4966
2. Add BTC Init failure protection
3. Regular BTU Task Name with BTC
4. Correct the comment of
a. SDP_ServiceSearchRequest and SDP_ServiceSearchRequest2
b. l2cu_create_conn_after_switch
5. Correct comment of esp_bt_hf_vra();
6. Fix cpp compilier region
Some Bluetooth devices - such as an Xbox One S controller (model 1708) - report more than two external features pages and are rejected immediately. Pages 1 and 2 are marked as unhandled in btm_devctl.c anyway, so there is no reason to block devices with more pages.
(IDFGH-3515)
Signed-off-by: liqigan <liqigan@espressif.com>
Merges https://github.com/espressif/esp-idf/pull/5481
Closes https://github.com/espressif/esp-idf/issues/5470
Prevent a remote device from doing a Bluetooth Impersonation Attack
(BIAS) by:
- Preventing remote device to downgrade secure connection
feature mask. Secure connection feature mask should remain same or
increase to enabled in link key generation and authentication.
- Doing a mutual authentication during Legacy Authentication.
Signed-off-by: Chinmay Chhajed <chinmay.chhajed@espressif.com>
