1 files changed, 46 insertions, 7 deletions

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index eda5239..38b03bd 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -141,6 +141,27 @@ static const u16 mgmt_events[] = {
 	MGMT_EV_ADVERTISING_REMOVED,
 };
 
+static const u16 mgmt_untrusted_commands[] = {
+	MGMT_OP_READ_INDEX_LIST,
+	MGMT_OP_READ_INFO,
+	MGMT_OP_READ_UNCONF_INDEX_LIST,
+	MGMT_OP_READ_CONFIG_INFO,
+	MGMT_OP_READ_EXT_INDEX_LIST,
+};
+
+static const u16 mgmt_untrusted_events[] = {
+	MGMT_EV_INDEX_ADDED,
+	MGMT_EV_INDEX_REMOVED,
+	MGMT_EV_NEW_SETTINGS,
+	MGMT_EV_CLASS_OF_DEV_CHANGED,
+	MGMT_EV_LOCAL_NAME_CHANGED,
+	MGMT_EV_UNCONF_INDEX_ADDED,
+	MGMT_EV_UNCONF_INDEX_REMOVED,
+	MGMT_EV_NEW_CONFIG_OPTIONS,
+	MGMT_EV_EXT_INDEX_ADDED,
+	MGMT_EV_EXT_INDEX_REMOVED,
+};
+
 #define CACHE_TIMEOUT	msecs_to_jiffies(2 * 1000)
 
 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
@@ -265,14 +286,20 @@ static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
 			 u16 data_len)
 {
 	struct mgmt_rp_read_commands *rp;
-	const u16 num_commands = ARRAY_SIZE(mgmt_commands);
-	const u16 num_events = ARRAY_SIZE(mgmt_events);
-	__le16 *opcode;
+	u16 num_commands, num_events;
 	size_t rp_size;
 	int i, err;
 
 	BT_DBG("sock %p", sk);
 
+	if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
+		num_commands = ARRAY_SIZE(mgmt_commands);
+		num_events = ARRAY_SIZE(mgmt_events);
+	} else {
+		num_commands = ARRAY_SIZE(mgmt_untrusted_commands);
+		num_events = ARRAY_SIZE(mgmt_untrusted_events);
+	}
+
 	rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
 
 	rp = kmalloc(rp_size, GFP_KERNEL);
@@ -282,11 +309,23 @@ static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
 	rp->num_commands = cpu_to_le16(num_commands);
 	rp->num_events = cpu_to_le16(num_events);
 
-	for (i = 0, opcode = rp->opcodes; i < num_commands; i++, opcode++)
-		put_unaligned_le16(mgmt_commands[i], opcode);
+	if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
+		__le16 *opcode = rp->opcodes;
+
+		for (i = 0; i < num_commands; i++, opcode++)
+			put_unaligned_le16(mgmt_commands[i], opcode);
+
+		for (i = 0; i < num_events; i++, opcode++)
+			put_unaligned_le16(mgmt_events[i], opcode);
+	} else {
+		__le16 *opcode = rp->opcodes;
+
+		for (i = 0; i < num_commands; i++, opcode++)
+			put_unaligned_le16(mgmt_untrusted_commands[i], opcode);
 
-	for (i = 0; i < num_events; i++, opcode++)
-		put_unaligned_le16(mgmt_events[i], opcode);
+		for (i = 0; i < num_events; i++, opcode++)
+			put_unaligned_le16(mgmt_untrusted_events[i], opcode);
+	}
 
 	err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0,
 				rp, rp_size);