CSRK is generated while paring and should be used for sign att packets
when LE devices uses write signed command.
---
android/bluetooth.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 44 insertions(+), 1 deletion(-)
diff --git a/android/bluetooth.c b/android/bluetooth.c
index a703148..576911c 100644
--- a/android/bluetooth.c
+++ b/android/bluetooth.c
@@ -1804,6 +1804,46 @@ static void new_long_term_key_event(uint16_t index, uint16_t length,
/* TODO browse services here? */
}
+static void store_csrk(struct device *dev)
+{
+ GKeyFile *key_file;
+ char key_str[33];
+ char addr[18];
+ int i;
+ gsize length = 0;
+ char *data;
+
+ ba2str(&dev->bdaddr, addr);
+
+ key_file = g_key_file_new();
+ if (!g_key_file_load_from_file(key_file, DEVICES_FILE, 0, NULL)) {
+ g_key_file_free(key_file);
+ return;
+ }
+
+ if (dev->valid_local_csrk) {
+
+ for (i = 0; i < 16; i++)
+ sprintf(key_str + (i * 2), "%2.2X",
+ dev->local_csrk[i]);
+
+ g_key_file_set_string(key_file, addr, "LocalCSRK", key_str);
+ }
+
+ if (dev->valid_remote_csrk) {
+ for (i = 0; i < 16; i++)
+ sprintf(key_str + (i * 2), "%2.2X", dev->remote_csrk[i]);
+
+ g_key_file_set_string(key_file, addr, "RemoteCSRK", key_str);
+ }
+
+ data = g_key_file_to_data(key_file, &length, NULL);
+ g_file_set_contents(DEVICES_FILE, data, length, NULL);
+ g_free(data);
+
+ g_key_file_free(key_file);
+}
+
static void new_csrk_callback(uint16_t index, uint16_t length,
const void *param, void *user_data)
{
@@ -1834,7 +1874,10 @@ static void new_csrk_callback(uint16_t index, uint16_t length,
return;
}
- /*TODO: Store it. Remember about Sign Counter*/
+ if (ev->store_hint)
+ store_csrk(dev);
+
+ /*TODO: Store sign counter */
}
static void register_mgmt_handlers(void)
--
1.8.4
--
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