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| author | Xiao Yao <xiaoyao@rock-chips.com> | 2023-12-11 19:27:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-05 17:12:29 +0300 |
| commit | da448f145f8df52b5708a2aa6e9582618dea67d8 (patch) | |
| tree | a70d9f7a6f51e244a38b21cc6d9b43650988ee1b /include/net/bluetooth | |
| parent | 4bc912140b1c33089549fb8bed130fe466e487aa (diff) | |
| download | linux-da448f145f8df52b5708a2aa6e9582618dea67d8.tar.xz | |
Bluetooth: MGMT/SMP: Fix address type when using SMP over BREDR/LE
[ Upstream commit 59b047bc98084f8af2c41483e4d68a5adf2fa7f7 ]
If two Bluetooth devices both support BR/EDR and BLE, and also
support Secure Connections, then they only need to pair once.
The LTK generated during the LE pairing process may be converted
into a BR/EDR link key for BR/EDR transport, and conversely, a
link key generated during the BR/EDR SSP pairing process can be
converted into an LTK for LE transport. Hence, the link type of
the link key and LTK is not fixed, they can be either an LE LINK
or an ACL LINK.
Currently, in the mgmt_new_irk/ltk/crsk/link_key functions, the
link type is fixed, which could lead to incorrect address types
being reported to the application layer. Therefore, it is necessary
to add link_type/addr_type to the smp_irk/ltk/crsk and link_key,
to ensure the generation of the correct address type.
SMP over BREDR:
Before Fix:
> ACL Data RX: Handle 11 flags 0x02 dlen 12
BR/EDR SMP: Identity Address Information (0x09) len 7
Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 00:00:00:00:00:00 (Non-Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
After Fix:
> ACL Data RX: Handle 11 flags 0x02 dlen 12
BR/EDR SMP: Identity Address Information (0x09) len 7
Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 00:00:00:00:00:00 (Non-Resolvable)
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
SMP over LE:
Before Fix:
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 5F:5C:07:37:47:D5 (Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
@ MGMT Event: New Link Key (0x0009) plen 26
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated Combination key from P-256 (0x08)
After Fix:
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 5E:03:1C:00:38:21 (Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
@ MGMT Event: New Link Key (0x0009) plen 26
Store hint: Yes (0x01)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated Combination key from P-256 (0x08)
Cc: stable@vger.kernel.org
Signed-off-by: Xiao Yao <xiaoyao@rock-chips.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/net/bluetooth')
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index e33433ec4a98..a168a64696b6 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -174,6 +174,7 @@ struct blocked_key { struct smp_csrk { bdaddr_t bdaddr; u8 bdaddr_type; + u8 link_type; u8 type; u8 val[16]; }; @@ -183,6 +184,7 @@ struct smp_ltk { struct rcu_head rcu; bdaddr_t bdaddr; u8 bdaddr_type; + u8 link_type; u8 authenticated; u8 type; u8 enc_size; @@ -197,6 +199,7 @@ struct smp_irk { bdaddr_t rpa; bdaddr_t bdaddr; u8 addr_type; + u8 link_type; u8 val[16]; }; @@ -204,6 +207,8 @@ struct link_key { struct list_head list; struct rcu_head rcu; bdaddr_t bdaddr; + u8 bdaddr_type; + u8 link_type; u8 type; u8 val[HCI_LINK_KEY_SIZE]; u8 pin_len; |