[PATCH spice-server v3 4/5] test-smartcard: Add test for Smartcard device

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Create Smardcard device.
Connect to it and test some messages are parsed and processed
as expected.

Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
Acked-by: Victor Toso <victortoso@xxxxxxxxxx>
---
 server/tests/.gitignore       |   1 +
 server/tests/Makefile.am      |   4 +
 server/tests/meson.build      |   4 +
 server/tests/test-smartcard.c | 211 ++++++++++++++++++++++++++++++++++
 4 files changed, 220 insertions(+)
 create mode 100644 server/tests/test-smartcard.c

diff --git a/server/tests/.gitignore b/server/tests/.gitignore
index 36e978d4f..56cc7eb9a 100644
--- a/server/tests/.gitignore
+++ b/server/tests/.gitignore
@@ -29,5 +29,6 @@ test-leaks
 test-sasl
 test-record
 test-websocket
+test-smartcard
 /test-*.log
 /test-*.trs
diff --git a/server/tests/Makefile.am b/server/tests/Makefile.am
index 982508510..dd285c24e 100644
--- a/server/tests/Makefile.am
+++ b/server/tests/Makefile.am
@@ -68,6 +68,10 @@ check_PROGRAMS =				\
 	test-record				\
 	$(NULL)
 
+if HAVE_SMARTCARD
+check_PROGRAMS += test-smartcard
+endif
+
 if !OS_WIN32
 check_PROGRAMS +=				\
 	test-stream				\
diff --git a/server/tests/meson.build b/server/tests/meson.build
index 33472f14e..95ade60fa 100644
--- a/server/tests/meson.build
+++ b/server/tests/meson.build
@@ -65,6 +65,10 @@ if spice_server_has_sasl
   tests += [['test-sasl', true]]
 endif
 
+if spice_server_has_smartcard == true
+  tests += [['test-smartcard', true]]
+endif
+
 if host_machine.system() != 'windows'
   tests += [
     ['test-stream', true],
diff --git a/server/tests/test-smartcard.c b/server/tests/test-smartcard.c
new file mode 100644
index 000000000..aac2e7941
--- /dev/null
+++ b/server/tests/test-smartcard.c
@@ -0,0 +1,211 @@
+/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/*
+   Copyright (C) 2019 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * Test Smartcard device and channel
+ */
+
+#include <config.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <unistd.h>
+
+#include <spice/protocol.h>
+#include <spice/stream-device.h>
+
+#include "test-display-base.h"
+#include "test-glib-compat.h"
+#include "reds.h"
+#include "vmc-emu.h"
+#include "red-client.h"
+#include "net-utils.h"
+#include "win-alarm.h"
+
+static SpiceCoreInterface *core;
+static Test *test;
+static VmcEmu *vmc;
+typedef int TestFixture;
+
+static void test_smartcard_setup(TestFixture *fixture, gconstpointer user_data)
+{
+    g_assert_null(core);
+    g_assert_null(test);
+    g_assert_null(vmc);
+    core = basic_event_loop_init();
+    g_assert_nonnull(core);
+    test = test_new(core);
+    g_assert_nonnull(test);
+    vmc = vmc_emu_new("smartcard", NULL);
+    g_assert_nonnull(vmc);
+}
+
+static void test_smartcard_teardown(TestFixture *fixture, gconstpointer user_data)
+{
+    g_assert_nonnull(core);
+    g_assert_nonnull(test);
+    g_assert_nonnull(vmc);
+
+    vmc_emu_destroy(vmc);
+    vmc = NULL;
+    test_destroy(test);
+    test = NULL;
+    basic_event_loop_destroy();
+    core = NULL;
+}
+
+static RedStream *create_dummy_stream(SpiceServer *server, int *p_socket)
+{
+    int sv[2];
+    g_assert_cmpint(socketpair(AF_LOCAL, SOCK_STREAM, 0, sv), ==, 0);
+    if (p_socket) {
+        *p_socket = sv[1];
+    }
+    red_socket_set_non_blocking(sv[0], true);
+    red_socket_set_non_blocking(sv[1], true);
+
+    RedStream * stream = red_stream_new(server, sv[0]);
+    g_assert_nonnull(stream);
+
+    return stream;
+}
+
+static void send_ack_sync(int socket, uint32_t generation)
+{
+    struct {
+        uint16_t dummy;
+        uint16_t type;
+        uint32_t len;
+        uint32_t generation;
+    } msg;
+    SPICE_VERIFY(sizeof(msg) == 12);
+    msg.type = GUINT16_TO_LE(SPICE_MSGC_ACK_SYNC);
+    msg.len = GUINT32_TO_LE(sizeof(generation));
+    msg.generation = GUINT32_TO_LE(generation);
+
+    g_assert_cmpint(socket_write(socket, &msg.type, 10), ==, 10);
+}
+
+static void send_data(int socket, uint32_t type)
+{
+    struct {
+        uint16_t dummy;
+        uint16_t type;
+        uint32_t len;
+        VSCMsgHeader vheader;
+        char data[6];
+    } msg;
+    SPICE_VERIFY(sizeof(msg) == 8+12+8);
+    msg.type = GUINT16_TO_LE(SPICE_MSGC_SMARTCARD_DATA);
+    msg.len = GUINT32_TO_LE(sizeof(VSCMsgHeader)+6);
+    msg.vheader.type = GUINT32_TO_LE(type);
+    msg.vheader.reader_id = 0;
+    msg.vheader.length = GUINT32_TO_LE(6);
+    strcpy(msg.data, "hello");
+
+    g_assert_cmpint(socket_write(socket, &msg.type, sizeof(msg)-4), ==, sizeof(msg)-4);
+}
+
+static void check_data(void *opaque)
+{
+    static const char expected_buf[] =
+        // forwarded ReaderAdd message, note that payload is stripped
+        "\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00"
+        // forwarded APDU message
+        "\x00\x00\x00\x07\x00\x00\x00\x00\x00\x00\x00\x06\x68\x65\x6c\x6c\x6f\x00";
+    const size_t expected_buf_len = sizeof(expected_buf) - 1;
+    g_assert_cmpint(vmc->write_pos, ==, expected_buf_len);
+    g_assert_true(memcmp(vmc->write_buf, expected_buf, expected_buf_len) == 0);
+    basic_event_loop_quit();
+}
+
+static void test_smartcard(TestFixture *fixture, gconstpointer user_data)
+{
+    SpiceServer *const server = test->server;
+    uint8_t *p = vmc->message;
+
+    spice_server_add_interface(server, &vmc->instance.base);
+
+    // add VSC_Init message
+    memcpy(p, "\x00\x00\x00\x01\x0a\x0b\x0c\x0d\x00\x00\x00\x00", 12);
+    p += 12;
+    vmc_emu_add_read_till(vmc, p);
+
+    // find Smartcard channel to connect to
+    RedChannel *channel = reds_find_channel(server, SPICE_CHANNEL_SMARTCARD, 0);
+    g_assert_nonnull(channel);
+
+    // create dummy RedClient and MainChannelClient
+    RedChannelCapabilities caps;
+    memset(&caps, 0, sizeof(caps));
+    uint32_t common_caps = 1 << SPICE_COMMON_CAP_MINI_HEADER;
+    caps.num_common_caps = 1;
+    caps.common_caps = spice_memdup(&common_caps, sizeof(common_caps));
+
+    RedClient *client = red_client_new(server, FALSE);
+    g_assert_nonnull(client);
+
+    MainChannel *main_channel = main_channel_new(server);
+    g_assert_nonnull(main_channel);
+
+    MainChannelClient *mcc;
+    mcc = main_channel_link(main_channel, client, create_dummy_stream(server, NULL),
+                            0, FALSE, &caps);
+    g_assert_nonnull(mcc);
+    red_client_set_main(client, mcc);
+
+    // create our testing RedChannelClient
+    int client_socket;
+    red_channel_connect(channel, client, create_dummy_stream(server, &client_socket),
+                        FALSE, &caps);
+    red_channel_capabilities_reset(&caps);
+
+    // push data to device
+    spice_server_char_device_wakeup(&vmc->instance);
+
+    // push data into channel
+    send_ack_sync(client_socket, 1);
+    send_data(client_socket, VSC_ReaderAdd);
+    send_data(client_socket, VSC_APDU);
+
+    // check data are processed after a short time
+    SpiceTimer *watch_timer;
+    watch_timer = core->timer_add(check_data, core);
+    core->timer_start(watch_timer, 100);
+
+    // start all test
+    alarm(10);
+    basic_event_loop_mainloop();
+    alarm(0);
+
+    // cleanup
+    core->timer_remove(watch_timer);
+    red_client_destroy(client);
+    g_object_unref(main_channel);
+    g_object_unref(channel);
+}
+
+int main(int argc, char *argv[])
+{
+    g_test_init(&argc, &argv, NULL);
+
+    g_test_add("/server/smartcard", TestFixture, NULL, test_smartcard_setup,
+               test_smartcard, test_smartcard_teardown);
+
+    return g_test_run();
+}
-- 
2.21.0

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