Bluetooth: Add support for handling signature resolving keys
The connection signature resolving key (CSRK) is used for attribute
protocol signed write procedures. This change generates a new local
key during pairing and requests the peer key as well.
Newly generated key and received key will be provided to userspace
using the New Signature Resolving Key management event.
The Master CSRK can be used for verification of remote signed write
PDUs and the Slave CSRK can be used for sending signed write PDUs
to the remote device.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 0326648..d4b571c 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -551,3 +551,15 @@
bdaddr_t rpa;
struct mgmt_irk_info irk;
} __packed;
+
+struct mgmt_csrk_info {
+ struct mgmt_addr_info addr;
+ __u8 master;
+ __u8 val[16];
+} __packed;
+
+#define MGMT_EV_NEW_CSRK 0x0019
+struct mgmt_ev_new_csrk {
+ __u8 store_hint;
+ struct mgmt_csrk_info key;
+} __packed;