2021-09-06 04:00:25

by Yun-hao Chung

[permalink] [raw]
Subject: [Bluez PATCH v1 1/2] plugins/admin: add adapter_remove handler

From: Yun-Hao Chung <[email protected]>

Currently admin doesn't handle adapter removed callbacks, which causes
interfaces AdminPolicySet1 and AdminPolicyStatus1 not being
unregistered, which in turns causes these interfaces can not be
re-registered once adapter is back.

This adds handler for adapter_remove.

Reviewed-by: Shyh-In Hwang <[email protected]>
Reviewed-by: Miao-chen Chou <[email protected]>
---
tested with following steps
1. rmmod btusb
2. modprobe btusb
3. read allowlist via bluetoothctl

plugins/admin.c | 37 ++++++++++++++++++++++++++++++-------
1 file changed, 30 insertions(+), 7 deletions(-)

diff --git a/plugins/admin.c b/plugins/admin.c
index 02fec04568ba..9440581409fa 100644
--- a/plugins/admin.c
+++ b/plugins/admin.c
@@ -85,6 +85,19 @@ static void admin_policy_free(void *data)
g_free(admin_policy);
}

+static void admin_policy_destroy(struct btd_admin_policy *admin_policy)
+{
+ char *path = adapter_get_path(admin_policy->adapter);
+
+ g_dbus_unregister_interface(dbus_conn, path,
+ ADMIN_POLICY_SET_INTERFACE);
+ g_dbus_unregister_interface(dbus_conn, path,
+ ADMIN_POLICY_STATUS_INTERFACE);
+ g_dbus_unregister_interface(dbus_conn, path,
+ MOCK_ADMIN_POLICY_INTERFACE);
+ admin_policy_free(admin_policy);
+}
+
static bool uuid_match(const void *data, const void *match_data)
{
const bt_uuid_t *uuid = data;
@@ -492,7 +505,7 @@ static int admin_policy_adapter_probe(struct btd_adapter *adapter)
if (!g_dbus_register_interface(dbus_conn, adapter_path,
ADMIN_POLICY_SET_INTERFACE,
admin_policy_adapter_methods, NULL,
- NULL, policy_data, admin_policy_free)) {
+ NULL, policy_data, NULL)) {
btd_error(policy_data->adapter_id,
"Admin Policy Set interface init failed on path %s",
adapter_path);
@@ -506,7 +519,7 @@ static int admin_policy_adapter_probe(struct btd_adapter *adapter)
ADMIN_POLICY_STATUS_INTERFACE,
NULL, NULL,
admin_policy_adapter_properties,
- policy_data, admin_policy_free)) {
+ policy_data, NULL)) {
btd_error(policy_data->adapter_id,
"Admin Policy Status interface init failed on path %s",
adapter_path);
@@ -574,10 +587,24 @@ static void admin_policy_device_removed(struct btd_adapter *adapter,
unregister_device_data(data, NULL);
}

+static void admin_policy_remove(void)
+{
+ DBG("");
+
+ queue_foreach(devices, unregister_device_data, NULL);
+ queue_destroy(devices, g_free);
+
+ if (policy_data) {
+ admin_policy_destroy(policy_data);
+ policy_data = NULL;
+ }
+}
+
static struct btd_adapter_driver admin_policy_driver = {
.name = "admin_policy",
.probe = admin_policy_adapter_probe,
.resume = NULL,
+ .remove = admin_policy_remove,
.device_resolved = admin_policy_device_added,
.device_removed = admin_policy_device_removed
};
@@ -597,11 +624,7 @@ static void admin_exit(void)
DBG("");

btd_unregister_adapter_driver(&admin_policy_driver);
- queue_foreach(devices, unregister_device_data, NULL);
- queue_destroy(devices, g_free);
-
- if (policy_data)
- admin_policy_free(policy_data);
+ admin_policy_remove();
}

BLUETOOTH_PLUGIN_DEFINE(admin, VERSION,
--
2.33.0.153.gba50c8fa24-goog