From 033b68cbb1bf73b1bb9d26f5ffac35b6dc0afab8 Mon Sep 17 00:00:00 2001
From: Pauli Virtanen <pav@iki.fi>
Date: Tue, 1 Aug 2023 19:38:42 +0300
Subject: [PATCH] iso-tester: add tests checking Remove CIG is emitted

Kernel should send LE Remove CIG after all CIS are shut down.  Add tests
checking this, closing either immediately or after waiting connection to
complete.

ISO Defer Close - Success
ISO Connect Close - Success
ISO Defer Wait Close - Success
ISO Connect Wait Close - Success
---
 tools/iso-tester.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)

diff --git a/tools/iso-tester.c b/tools/iso-tester.c
index 9f853a0f9..bbf959420 100644
--- a/tools/iso-tester.c
+++ b/tools/iso-tester.c
@@ -2425,6 +2425,90 @@ static void test_connect2_nodefer(const void *test_data)
 	close(sk);
 }
 
+static gboolean iso_connect_close_cb(GIOChannel *io, GIOCondition cond,
+							gpointer user_data)
+{
+	struct test_data *data = user_data;
+
+	data->io_id[0] = 0;
+
+	tester_print("Disconnected");
+
+	--data->step;
+	if (!data->step)
+		tester_test_passed();
+
+	return FALSE;
+}
+
+static bool hook_remove_cig(const void *msg, uint16_t len, void *user_data)
+{
+	struct test_data *data = user_data;
+
+	tester_print("Remove CIG");
+
+	--data->step;
+	if (!data->step)
+		tester_test_passed();
+
+	return true;
+}
+
+static void test_connect_close(const void *test_data)
+{
+	struct test_data *data = tester_get_data();
+	int sk;
+	GIOChannel *io;
+
+	data->step = 2;
+
+	hciemu_add_hook(data->hciemu, HCIEMU_HOOK_PRE_CMD,
+					BT_HCI_CMD_LE_REMOVE_CIG,
+					hook_remove_cig, data);
+
+	sk = setup_sock(data, 0);
+	if (sk < 0)
+		return;
+
+	io = g_io_channel_unix_new(sk);
+	g_io_channel_set_close_on_unref(io, TRUE);
+	data->io_id[0] = g_io_add_watch(io, G_IO_HUP, iso_connect_close_cb,
+									data);
+
+	shutdown(sk, SHUT_RDWR);
+}
+
+static gboolean iso_connect_wait_close_cb(GIOChannel *io, GIOCondition cond,
+							gpointer user_data)
+{
+	struct test_data *data = tester_get_data();
+	int sk;
+
+	tester_print("Connected");
+
+	sk = g_io_channel_unix_get_fd(io);
+
+	data->io_id[0] = g_io_add_watch(io, G_IO_HUP, iso_connect_close_cb,
+									data);
+
+	shutdown(sk, SHUT_RDWR);
+
+	return FALSE;
+}
+
+static void test_connect_wait_close(const void *test_data)
+{
+	struct test_data *data = tester_get_data();
+
+	data->step = 1;
+
+	hciemu_add_hook(data->hciemu, HCIEMU_HOOK_PRE_CMD,
+					BT_HCI_CMD_LE_REMOVE_CIG,
+					hook_remove_cig, data);
+
+	setup_connect(data, 0, iso_connect_wait_close_cb);
+}
+
 static void test_bcast(const void *test_data)
 {
 	struct test_data *data = tester_get_data();
@@ -2601,6 +2685,18 @@ int main(int argc, char *argv[])
 	test_iso("ISO Defer Connect - Success", &defer_16_2_1, setup_powered,
 							test_connect);
 
+	test_iso("ISO Defer Close - Success", &defer_16_2_1, setup_powered,
+							test_connect_close);
+
+	test_iso("ISO Connect Close - Success", &connect_16_2_1, setup_powered,
+							test_connect_close);
+
+	test_iso("ISO Defer Wait Close - Success", &defer_16_2_1,
+					setup_powered, test_connect_wait_close);
+
+	test_iso("ISO Connect Wait Close - Success", &connect_16_2_1,
+					setup_powered, test_connect_wait_close);
+
 	test_iso2("ISO Defer Connect2 CIG 0x01 - Success", &defer_1_16_2_1,
 							setup_powered,
 							test_connect2);
-- 
2.47.3