From 2c3bba7b38be03834162e34069156f1fd49f0528 Mon Sep 17 00:00:00 2001 From: "antoine.belvire@laposte.net" Date: Tue, 27 Mar 2018 20:30:26 +0200 Subject: adapter: Don't refresh adv_manager for non-LE devices btd_adv_manager_refresh is called upon MGMT_SETTING_DISCOVERABLE setting change but as only LE adapters have an adv_manager, this leads to segmentation fault for non-LE devices: 0 btd_adv_manager_refresh (manager=0x0) at src/advertising.c:1176 1 0x0000556fe45fcb02 in settings_changed (settings=, adapter=0x556fe53f7c70) at src/adapter.c:543 2 new_settings_callback (index=, length=, param=, user_data=0x556fe53f7c70) at src/adapter.c:573 3 0x0000556fe462c278 in request_complete (mgmt=mgmt@entry=0x556fe53f20c0, status=, opcode=opcode@entry=7, index=index@entry=0, length=length@entry=4, param=0x556fe53eb5f9) at src/shared/mgmt.c:261 4 0x0000556fe462cd9d in can_read_data (io=, user_data=0x556fe53f20c0) at src/shared/mgmt.c:353 5 0x0000556fe46396e3 in watch_callback (channel=, cond=, user_data=) at src/shared/io-glib.c:170 6 0x00007fe351c980e5 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0 7 0x00007fe351c984b0 in ?? () from /usr/lib64/libglib-2.0.so.0 8 0x00007fe351c987c2 in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0 9 0x0000556fe45abc75 in main (argc=, argv=) at src/main.c:770 This commit prevents the call to btd_adv_manager_refresh for non-LE devices. --- src/adapter.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/src/adapter.c +++ b/src/adapter.c @@ -540,7 +540,8 @@ static void settings_changed(struct btd_ g_dbus_emit_property_changed(dbus_conn, adapter->path, ADAPTER_INTERFACE, "Discoverable"); store_adapter_info(adapter); - btd_adv_manager_refresh(adapter->adv_manager); + if (adapter->supported_settings & MGMT_SETTING_LE) + btd_adv_manager_refresh(adapter->adv_manager); } if (changed_mask & MGMT_SETTING_BONDABLE) {