android/client: Add ssp key confirmation helper

This patch adds handling of ssp_request_cb that prints prompt
asking user if pass key matches. User does not need to type:
bluetooth ssp_reply address BT_SSP_VARIANT_PASSKEY_CONFIRMATION 1 key

diff --git a/android/client/if-bt.c b/android/client/if-bt.c
index 0a580e1..10ae125 100644 (file)
--- a/android/client/if-bt.c
+++ b/android/client/if-bt.c
@@ -239,10 +239,26 @@ static void pin_request_cb(bt_bdaddr_t *remote_bd_addr, bt_bdname_t *bd_name,
        terminal_prompt_for("Enter pin: ", pin_request_answer);
 }
 
+/* Variables to store information from ssp_request_cb used for ssp_reply */
+static bt_bdaddr_t ssp_request_addr;
+static bt_ssp_variant_t ssp_request_variant;
+static uint32_t ssp_request_pask_key;
+
+/* Called when user hit enter on prompt for confirmation */
+static void ssp_request_yes_no_answer(char *reply)
+{
+       int accept = *reply == 0 || *reply == 'y' || *reply == 'Y';
+
+       if_bluetooth->ssp_reply(&ssp_request_addr, ssp_request_variant, accept,
+                                                       ssp_request_pask_key);
+}
+
 static void ssp_request_cb(bt_bdaddr_t *remote_bd_addr, bt_bdname_t *bd_name,
                                uint32_t cod, bt_ssp_variant_t pairing_variant,
                                uint32_t pass_key)
 {
+       static char prompt[50];
+
        /* Store for command completion */
        bt_bdaddr_t2str(remote_bd_addr, last_remote_addr);
        last_ssp_variant = pairing_variant;
@@ -250,6 +266,16 @@ static void ssp_request_cb(bt_bdaddr_t *remote_bd_addr, bt_bdname_t *bd_name,
        haltest_info("%s: remote_bd_addr=%s bd_name=%s cod=%06x pairing_variant=%s pass_key=%d\n",
                        __func__, last_remote_addr, bd_name->name, cod,
                        bt_ssp_variant_t2str(pairing_variant), pass_key);
+
+       if (pairing_variant == BT_SSP_VARIANT_PASSKEY_CONFIRMATION) {
+               sprintf(prompt, "Does other device show %d [Y/n] ?", pass_key);
+
+               ssp_request_addr = *remote_bd_addr;
+               ssp_request_variant = pairing_variant;
+               ssp_request_pask_key = pass_key;
+
+               terminal_prompt_for(prompt, ssp_request_yes_no_answer);
+       }
 }
 
 static void bond_state_changed_cb(bt_status_t status,