---
src/shared/att.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/shared/att.h | 3 +++
2 files changed, 75 insertions(+)
diff --git a/src/shared/att.c b/src/shared/att.c
index a98909e..d2468a0 100644
--- a/src/shared/att.c
+++ b/src/shared/att.c
@@ -57,6 +57,7 @@ struct bt_att {
int ref_count;
int fd;
struct io *io;
+ bool io_on_l2cap;
struct queue *req_queue; /* Queued ATT protocol requests */
struct att_send_op *pending_req;
@@ -774,6 +775,31 @@ static bool can_read_data(struct io *io, void *user_data)
return true;
}
+static bool is_io_l2cap_based(int fd)
+{
+ int domain;
+ int proto;
+ int err;
+ socklen_t len;
+
+ domain = 0;
+ len = sizeof(domain);
+ err = getsockopt(fd, SOL_SOCKET, SO_DOMAIN, &domain, &len);
+ if (err < 0)
+ return false;
+
+ if (domain != AF_BLUETOOTH)
+ return false;
+
+ proto = 0;
+ len = sizeof(proto);
+ err = getsockopt(fd, SOL_SOCKET, SO_PROTOCOL, &proto, &len);
+ if (err < 0)
+ return false;
+
+ return proto == BTPROTO_L2CAP;
+}
+
static void bt_att_free(struct bt_att *att)
{
if (att->pending_req)
@@ -849,6 +875,8 @@ struct bt_att *bt_att_new(int fd)
if (!io_set_disconnect_handler(att->io, disconnect_cb, att, NULL))
goto fail;
+ att->io_on_l2cap = is_io_l2cap_based(att->fd);
+
return bt_att_ref(att);
fail:
@@ -1226,3 +1254,47 @@ bool bt_att_unregister_all(struct bt_att *att)
return true;
}
+
+int bt_att_get_sec_level(struct bt_att *att)
+{
+ struct bt_security sec;
+ socklen_t len;
+
+ if (!att)
+ return -EINVAL;
+
+ /*
+ * Let's be nice for unit test.
+ * TODO: Might be needed to emulate different levels for test purposes
+ */
+ if (!att->io_on_l2cap)
+ return BT_SECURITY_LOW;
+
+ memset(&sec, 0, sizeof(sec));
+ len = sizeof(sec);
+ if (getsockopt(att->fd, SOL_BLUETOOTH, BT_SECURITY, &sec, &len) < 0)
+ return -EIO;
+
+ return sec.level;
+}
+
+bool bt_att_set_sec_level(struct bt_att *att, int level)
+{
+ struct bt_security sec;
+
+ if (!att || level < BT_SECURITY_LOW || level > BT_SECURITY_HIGH)
+ return false;
+
+ /* Let's be nice for unit test.*/
+ if (!att->io_on_l2cap)
+ return true;
+
+ memset(&sec, 0, sizeof(sec));
+ sec.level = level;
+
+ if (setsockopt(att->fd, SOL_BLUETOOTH, BT_SECURITY, &sec,
+ sizeof(sec)) < 0)
+ return false;
+
+ return true;
+}
diff --git a/src/shared/att.h b/src/shared/att.h
index cd00a1e..f13fc7b 100644
--- a/src/shared/att.h
+++ b/src/shared/att.h
@@ -79,3 +79,6 @@ unsigned int bt_att_register_disconnect(struct bt_att *att,
bool bt_att_unregister_disconnect(struct bt_att *att, unsigned int id);
bool bt_att_unregister_all(struct bt_att *att);
+
+int bt_att_get_sec_level(struct bt_att *att);
+bool bt_att_set_sec_level(struct bt_att *att, int level);
--
1.8.4
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