mesh: Add new kernel MGMT based IO transport

1. Re-structures MGMT handling such that it is used to detect kernel
   support of the mesh MGMT opcodes and events before selecting between
   using MGMT or the legacy raw HCI socket method.

2. Re-structures main() to allow command line to prefer MGMT over HCI or
   visa versa, plus optionally pass an explicte controller.

3. Adds mesh-io-mgmt as a transport.

1 files changed, 35 insertions, 4 deletions

diff --git a/mesh/main.c b/mesh/main.c
index dd99c3085..619b17d88 100644
--- a/mesh/main.c
+++ b/mesh/main.c
@@ -123,6 +123,12 @@ static void disconnect_callback(void *user_data)
 	l_main_quit();
 }
 
+static void kill_to(struct l_timeout *timeout, void *user_data)
+{
+	l_timeout_remove(timeout);
+	l_main_quit();
+}
+
 static void signal_handler(uint32_t signo, void *user_data)
 {
 	static bool terminated;
@@ -131,13 +137,38 @@ static void signal_handler(uint32_t signo, void *user_data)
 		return;
 
 	l_info("Terminating");
-	l_main_quit();
+	mesh_cleanup(true);
+	l_timeout_create(1, kill_to, NULL, NULL);
 	terminated = true;
 }
 
 static bool parse_io(const char *optarg, enum mesh_io_type *type, void **opts)
 {
-	if (strstr(optarg, "generic") == optarg) {
+	if (strstr(optarg, "auto") == optarg) {
+		int *index = l_new(int, 1);
+
+		*type = MESH_IO_TYPE_AUTO;
+		*opts = index;
+
+		optarg += strlen("auto");
+		if (!*optarg) {
+			*index = MGMT_INDEX_NONE;
+			return true;
+		}
+
+		if (*optarg != ':')
+			return false;
+
+		optarg++;
+
+		if (sscanf(optarg, "hci%d", index) == 1)
+			return true;
+
+		if (sscanf(optarg, "%d", index) == 1)
+			return true;
+
+		return false;
+	} else if (strstr(optarg, "generic") == optarg) {
 		int *index = l_new(int, 1);
 
 		*type = MESH_IO_TYPE_GENERIC;
@@ -251,7 +282,7 @@ int main(int argc, char *argv[])
 	}
 
 	if (!io)
-		io = l_strdup_printf("generic");
+		io = l_strdup_printf("auto");
 
 	if (!parse_io(io, &io_type, &io_opts)) {
 		l_error("Invalid io: %s", io);
@@ -295,7 +326,7 @@ done:
 	l_free(io);
 	l_free(io_opts);
 
-	mesh_cleanup();
+	mesh_cleanup(false);
 	l_dbus_destroy(dbus);
 	l_main_exit();