DO NOT MERGE Separate SDP procedure from bonding state (1/2)

- Do not stay in bonding state if the device is paried but still
  discovering service.
- Report BOND_BONDED to Java after authentication for a classic
  Bluetooth device is completed.
- Send BONDING event to Java when static identity address is
  first obtained during crosskey pairing
- Send BONDING event to Java for the initial random address
  before send BONDED event
- Do not send bond event for static identity address when SDP is done.
- Make sure pairing control block always get cleaned up when both SDP
  and pairing are done
- Send empty UUIDs to Java layer to unblock bonding intent broadcast
  when SDP fails

Bug: 79703832
Test: runtest bluetooth, regression test
Change-Id: I60d8883e6d095b440cce49686a2049c8b5660235
Merged-In: I8a98ba2178039e25c65fc701855066a8788312e6

diff --git a/btif/src/btif_dm.cc b/btif/src/btif_dm.cc
index f5c2c88..2a584de 100644 (file)
--- a/btif/src/btif_dm.cc
+++ b/btif/src/btif_dm.cc
@@ -184,6 +184,7 @@ typedef struct {
 #define BTA_SERVICE_ID_TO_SERVICE_MASK(id) (1 << (id))
 
 #define UUID_HUMAN_INTERFACE_DEVICE "00001124-0000-1000-8000-00805f9b34fb"
+#define UUID_EMPTY "00000000-0000-0000-0000-000000000000"
 
 #define MAX_BTIF_BOND_EVENT_ENTRIES 15
 
@@ -262,6 +263,11 @@ static bool is_empty_128bit(uint8_t* data) {
   return !memcmp(zero, data, sizeof(zero));
 }
 
+static bool is_bonding_or_sdp() {
+  return pairing_cb.state == BT_BOND_STATE_BONDING ||
+         (pairing_cb.state == BT_BOND_STATE_BONDED && pairing_cb.sdp_attempts);
+}
+
 static void btif_dm_data_copy(uint16_t event, char* dst, char* src) {
   tBTA_DM_SEC* dst_dm_sec = (tBTA_DM_SEC*)dst;
   tBTA_DM_SEC* src_dm_sec = (tBTA_DM_SEC*)src;
@@ -491,8 +497,6 @@ static void bond_state_changed(bt_status_t status, bt_bdaddr_t* bd_addr,
                                bt_bond_state_t state) {
   btif_stats_add_bond_event(bd_addr, BTIF_DM_FUNC_BOND_STATE_CHANGED, state);
 
-  // Send bonding state only once - based on outgoing/incoming we may receive
-  // duplicates
   if ((pairing_cb.state == state) && (state == BT_BOND_STATE_BONDING)) {
     // Cross key pairing so send callback for static address
     if (!bdaddr_is_empty(&pairing_cb.static_bdaddr)) {
@@ -508,14 +512,13 @@ static void bond_state_changed(bt_status_t status, bt_bdaddr_t* bd_addr,
 
   HAL_CBACK(bt_hal_cbacks, bond_state_changed_cb, status, bd_addr, state);
 
-  if (state == BT_BOND_STATE_BONDING) {
+  if (state == BT_BOND_STATE_BONDING ||
+      (state == BT_BOND_STATE_BONDED && pairing_cb.sdp_attempts > 0)) {
+    // Save state for the device is bonding or SDP.
     pairing_cb.state = state;
     bdcpy(pairing_cb.bd_addr, bd_addr->address);
   } else {
-    if (!pairing_cb.sdp_attempts)
-      memset(&pairing_cb, 0, sizeof(pairing_cb));
-    else
-      BTIF_TRACE_DEBUG("%s: BR-EDR service discovery active", __func__);
+    pairing_cb = {};
   }
 }
 
@@ -1137,6 +1140,19 @@ static void btif_dm_auth_cmpl_evt(tBTA_DM_AUTH_CMPL* p_auth_cmpl) {
 
         /* Trigger SDP on the device */
         pairing_cb.sdp_attempts = 1;
+
+        if (is_crosskey) {
+          // If bonding occurred due to cross-key pairing, send bonding callback
+          // for static address now
+          bdstr_t bdstr;
+          LOG_INFO(LOG_TAG,
+                   "%s: send bonding state update for static address %s",
+                   __func__, bdaddr_to_string(&bd_addr, bdstr, sizeof(bdstr)));
+          bond_state_changed(BT_STATUS_SUCCESS, &bd_addr,
+                             BT_BOND_STATE_BONDING);
+        }
+        bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDED);
+
         btif_dm_get_remote_services(&bd_addr);
       }
     }
@@ -1398,9 +1414,9 @@ static void btif_dm_search_services_evt(uint16_t event, char* p_param) {
 
       BTIF_TRACE_DEBUG("%s:(result=0x%x, services 0x%x)", __func__,
                        p_data->disc_res.result, p_data->disc_res.services);
-      if ((p_data->disc_res.result != BTA_SUCCESS) &&
-          (pairing_cb.state == BT_BOND_STATE_BONDING) &&
-          (pairing_cb.sdp_attempts < BTIF_DM_MAX_SDP_ATTEMPTS_AFTER_PAIRING)) {
+      if (p_data->disc_res.result != BTA_SUCCESS &&
+          pairing_cb.state == BT_BOND_STATE_BONDED &&
+          pairing_cb.sdp_attempts < BTIF_DM_MAX_SDP_ATTEMPTS_AFTER_PAIRING) {
         BTIF_TRACE_WARNING("%s:SDP failed after bonding re-attempting",
                            __func__);
         pairing_cb.sdp_attempts++;
@@ -1425,24 +1441,41 @@ static void btif_dm_search_services_evt(uint16_t event, char* p_param) {
       /* onUuidChanged requires getBondedDevices to be populated.
       ** bond_state_changed needs to be sent prior to remote_device_property
       */
-      if ((pairing_cb.state == BT_BOND_STATE_BONDING) &&
+      if (pairing_cb.state == BT_BOND_STATE_BONDED && pairing_cb.sdp_attempts &&
           ((bdcmp(p_data->disc_res.bd_addr, pairing_cb.bd_addr) == 0) ||
            (bdcmp(p_data->disc_res.bd_addr, pairing_cb.static_bdaddr.address) ==
-            0)) &&
-          pairing_cb.sdp_attempts > 0) {
-        BTIF_TRACE_DEBUG(
-            "%s Remote Service SDP done. Call bond_state_changed_cb BONDED",
-            __func__);
+            0))) {
+        bdstr_t bdstr;
+        LOG_INFO(LOG_TAG, "%s: SDP search done for %s", __func__,
+                 bdaddr_to_string(&bd_addr, bdstr, sizeof(bdstr)));
         pairing_cb.sdp_attempts = 0;
 
-        // If bonding occured due to cross-key pairing, send bonding callback
-        // for static address now
-        if (bdcmp(p_data->disc_res.bd_addr, pairing_cb.static_bdaddr.address) ==
-            0)
-          bond_state_changed(BT_STATUS_SUCCESS, &bd_addr,
-                             BT_BOND_STATE_BONDING);
-
-        bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDED);
+        // Both SDP and bonding are done, clear pairing control block
+        pairing_cb = {};
+
+        // Send one empty UUID to Java to unblock pairing intent when SDP failed
+        // or no UUID is discovered
+        if (p_data->disc_res.result != BTA_SUCCESS ||
+            p_data->disc_res.num_uuids == 0) {
+          bdstr_t bdstr;
+          LOG_INFO(LOG_TAG,
+                   "%s: SDP failed, send empty UUID to unblock bonding %s",
+                   __func__, bdaddr_to_string(&bd_addr, bdstr, sizeof(bdstr)));
+          bt_property_t prop;
+          bt_uuid_t uuid = {};
+          char uuid_str[128] = UUID_EMPTY;
+
+          string_to_uuid(uuid_str, &uuid);
+
+          prop.type = BT_PROPERTY_UUIDS;
+          prop.val = uuid.uu;
+          prop.len = MAX_UUID_SIZE;
+
+          /* Send the event to the BTIF */
+          HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                    BT_STATUS_SUCCESS, &bd_addr, 1, &prop);
+          break;
+        }
       }
 
       if (p_data->disc_res.num_uuids != 0) {
@@ -1654,7 +1687,7 @@ static void btif_dm_upstreams_evt(uint16_t event, char* p_param) {
       break;
 
     case BTA_DM_BOND_CANCEL_CMPL_EVT:
-      if (pairing_cb.state == BT_BOND_STATE_BONDING) {
+      if (is_bonding_or_sdp()) {
         bdcpy(bd_addr.address, pairing_cb.bd_addr);
         btm_set_bond_type_dev(pairing_cb.bd_addr, BOND_TYPE_UNKNOWN);
         bond_state_changed((bt_status_t)p_data->bond_cancel_cmpl.result,
@@ -2311,7 +2344,7 @@ bt_status_t btif_dm_cancel_bond(const bt_bdaddr_t* bd_addr) {
   **  1. Restore scan modes
   **  2. special handling for HID devices
   */
-  if (pairing_cb.state == BT_BOND_STATE_BONDING) {
+  if (is_bonding_or_sdp()) {
     if (pairing_cb.is_ssp) {
       if (pairing_cb.is_le_only) {
         BTA_DmBleSecurityGrant((uint8_t*)bd_addr->address,
@@ -2513,7 +2546,7 @@ bt_status_t btif_dm_get_remote_services(bt_bdaddr_t* remote_addr) {
 
 /*******************************************************************************
  *
- * Function         btif_dm_get_remote_services_transport
+ * Function         btif_dm_get_remote_services_by_transport
  *
  * Description      Start SDP to get remote services by transport
  *
@@ -2931,6 +2964,11 @@ static void btif_dm_ble_auth_cmpl_evt(tBTA_DM_AUTH_CMPL* p_auth_cmpl) {
         break;
     }
   }
+  if (state == BT_BOND_STATE_BONDED &&
+      memcmp(&bd_addr, &pairing_cb.static_bdaddr, BD_ADDR_LEN)) {
+    // Report RPA bonding state to Java in crosskey paring
+    bond_state_changed(status, &bd_addr, BT_BOND_STATE_BONDING);
+  }
   bond_state_changed(status, &bd_addr, state);
 }
 
@@ -3249,7 +3287,7 @@ bt_status_t btif_le_test_mode(uint16_t opcode, uint8_t* buf, uint8_t len) {
 
 void btif_dm_on_disable() {
   /* cancel any pending pairing requests */
-  if (pairing_cb.state == BT_BOND_STATE_BONDING) {
+  if (is_bonding_or_sdp()) {
     bt_bdaddr_t bd_addr;
 
     BTIF_TRACE_DEBUG("%s: Cancel pending pairing request", __func__);