diff mbox series

[BlueZ,v2] adapter: Fix link key address type for old kernels

Message ID 20231220174042.2335819-1-luiz.dentz@gmail.com (mailing list archive)
State Accepted
Commit 7ad5669402c9acff8e4cc808edc12a41df36654e
Headers show
Series [BlueZ,v2] adapter: Fix link key address type for old kernels | expand

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Commit Message

Luiz Augusto von Dentz Dec. 20, 2023, 5:40 p.m. UTC 
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

On old kernels only BDADDR_BREDR is supported so this attempts to detect
that and retry.

Fixes: https://github.com/bluez/bluez/issues/686
---
 src/adapter.c | 59 ++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 44 insertions(+), 15 deletions(-)

Comments

bluez.test.bot@gmail.com Dec. 20, 2023, 7:11 p.m. UTC | #1 
This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=811910

---Test result---

Test Summary:
CheckPatch                    PASS      0.74 seconds
GitLint                       PASS      0.31 seconds
BuildEll                      PASS      24.93 seconds
BluezMake                     PASS      739.73 seconds
MakeCheck                     PASS      11.51 seconds
MakeDistcheck                 PASS      162.69 seconds
CheckValgrind                 PASS      224.54 seconds
CheckSmatch                   PASS      330.54 seconds
bluezmakeextell               PASS      107.30 seconds
IncrementalBuild              PASS      702.43 seconds
ScanBuild                     PASS      954.80 seconds



---
Regards,
Linux Bluetooth
patchwork-bot+bluetooth@kernel.org Dec. 20, 2023, 7:40 p.m. UTC | #2 
Hello:

This patch was applied to bluetooth/bluez.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@intel.com>:

On Wed, 20 Dec 2023 12:40:42 -0500 you wrote:
> From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
> 
> On old kernels only BDADDR_BREDR is supported so this attempts to detect
> that and retry.
> 
> Fixes: https://github.com/bluez/bluez/issues/686
> 
> [...]

Here is the summary with links:
  - [BlueZ,v2] adapter: Fix link key address type for old kernels
    https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=7ad5669402c9

You are awesome, thank you!
diff mbox series

Patch

diff --git a/src/adapter.c b/src/adapter.c
index ee70b00d249e..022390f0d95d 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -311,6 +311,7 @@  struct btd_adapter {
 	bool pincode_requested;		/* PIN requested during last bonding */
 	GSList *connections;		/* Connected devices */
 	GSList *devices;		/* Devices structure pointers */
+	GSList *load_keys;		/* Devices keys to be loaded */
 	GSList *connect_list;		/* Devices to connect when found */
 	struct btd_device *connect_le;	/* LE device waiting to be connected */
 	sdp_list_t *services;		/* Services associated to adapter */
@@ -4284,6 +4285,9 @@  static int set_privacy(struct btd_adapter *adapter, uint8_t privacy)
 	return -1;
 }
 
+static void load_link_keys(struct btd_adapter *adapter, bool debug_keys,
+							bool retry);
+
 static void load_link_keys_complete(uint8_t status, uint16_t length,
 					const void *param, void *user_data)
 {
@@ -4293,18 +4297,31 @@  static void load_link_keys_complete(uint8_t status, uint16_t length,
 		btd_error(adapter->dev_id,
 			"Failed to load link keys for hci%u: %s (0x%02x)",
 				adapter->dev_id, mgmt_errstr(status), status);
+
+		if (status == MGMT_STATUS_INVALID_PARAMS) {
+			load_link_keys(adapter, btd_opts.debug_keys, true);
+			/* Release keys after retry since we shall only retry
+			 * once.
+			 */
+			goto done;
+		}
+
 		return;
 	}
 
 	DBG("link keys loaded for hci%u", adapter->dev_id);
+
+done:
+	g_slist_free_full(adapter->load_keys, g_free);
+	adapter->load_keys = NULL;
 }
 
-static void load_link_keys(struct btd_adapter *adapter, GSList *keys,
-							bool debug_keys)
+static void load_link_keys(struct btd_adapter *adapter, bool debug_keys,
+							bool retry)
 {
 	struct mgmt_cp_load_link_keys *cp;
 	struct mgmt_link_key_info *key;
-	size_t key_count, cp_size;
+	size_t count, cp_size;
 	unsigned int id;
 	GSList *l;
 
@@ -4318,12 +4335,14 @@  static void load_link_keys(struct btd_adapter *adapter, GSList *keys,
 	if (!(adapter->supported_settings & MGMT_SETTING_BREDR))
 		return;
 
-	key_count = g_slist_length(keys);
+	count = g_slist_length(adapter->load_keys);
+	if (!count)
+		return;
 
-	DBG("hci%u keys %zu debug_keys %d", adapter->dev_id, key_count,
-								debug_keys);
+	DBG("hci%u keys %zu debug_keys %d retry %s", adapter->dev_id, count,
+				debug_keys, retry ? "true" : "false");
 
-	cp_size = sizeof(*cp) + (key_count * sizeof(*key));
+	cp_size = sizeof(*cp) + (count * sizeof(*key));
 
 	cp = g_try_malloc0(cp_size);
 	if (cp == NULL) {
@@ -4341,13 +4360,18 @@  static void load_link_keys(struct btd_adapter *adapter, GSList *keys,
 	 * behavior for debug keys.
 	 */
 	cp->debug_keys = debug_keys;
-	cp->key_count = htobs(key_count);
+	cp->key_count = htobs(count);
 
-	for (l = keys, key = cp->keys; l != NULL; l = g_slist_next(l), key++) {
+	for (l = adapter->load_keys, key = cp->keys; l != NULL;
+					l = g_slist_next(l), key++) {
 		struct link_key_info *info = l->data;
 
 		bacpy(&key->addr.bdaddr, &info->bdaddr);
-		key->addr.type = info->bdaddr_type;
+		/* Old kernels might only support loading with type set to
+		 * BDADDR_BREDR so on retry set that instead of using the stored
+		 * info.
+		 */
+		key->addr.type = retry ? BDADDR_BREDR : info->bdaddr_type;
 		key->type = info->type;
 		memcpy(key->val, info->key, 16);
 		key->pin_len = info->pin_len;
@@ -4359,9 +4383,12 @@  static void load_link_keys(struct btd_adapter *adapter, GSList *keys,
 
 	g_free(cp);
 
-	if (id == 0)
+	if (id == 0) {
 		btd_error(adapter->dev_id, "Failed to load link keys for hci%u",
 							adapter->dev_id);
+		g_slist_free_full(adapter->load_keys, g_free);
+		adapter->load_keys = NULL;
+	}
 }
 
 static void load_ltks_complete(uint8_t status, uint16_t length,
@@ -4873,7 +4900,6 @@  done:
 static void load_devices(struct btd_adapter *adapter)
 {
 	char dirname[PATH_MAX];
-	GSList *keys = NULL;
 	GSList *ltks = NULL;
 	GSList *irks = NULL;
 	GSList *params = NULL;
@@ -4964,7 +4990,8 @@  static void load_devices(struct btd_adapter *adapter)
 		}
 
 		if (key_info)
-			keys = g_slist_append(keys, key_info);
+			adapter->load_keys = g_slist_append(adapter->load_keys,
+								key_info);
 
 		if (ltk_info)
 			ltks = g_slist_append(ltks, ltk_info);
@@ -5013,8 +5040,7 @@  free:
 
 	closedir(dir);
 
-	load_link_keys(adapter, keys, btd_opts.debug_keys);
-	g_slist_free_full(keys, g_free);
+	load_link_keys(adapter, btd_opts.debug_keys, false);
 
 	load_ltks(adapter, ltks);
 	g_slist_free_full(ltks, g_free);
@@ -6930,6 +6956,9 @@  static void adapter_remove(struct btd_adapter *adapter)
 	g_slist_free(adapter->devices);
 	adapter->devices = NULL;
 
+	g_slist_free(adapter->load_keys);
+	adapter->load_keys = NULL;
+
 	discovery_cleanup(adapter, 0);
 
 	unload_drivers(adapter);