chansrv: add audin.c/h

sesman/chansrv/Makefile.am

@@ -70,7 +70,9 @@ xrdp_chansrv_SOURCES = \
   sound.c \
   sound.h \
   xcommon.c \
-  xcommon.h
+  xcommon.h \
+  audin.c \
+  audin.h
 
 xrdp_chansrv_LDFLAGS = \
   $(X_LIBS)

sesman/chansrv/audin.c

@@ -0,0 +1,104 @@
+/**
+ * xrdp: A Remote Desktop Protocol server.
+ *
+ * Copyright (C) Jay Sorg 2019
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if defined(HAVE_CONFIG_H)
+#include <config_ac.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "os_calls.h"
+#include "chansrv.h"
+#include "log.h"
+
+static struct chansrv_drdynvc_procs g_audin_info;
+static int g_audio_chanid = 0;
+
+/*****************************************************************************/
+static int
+audio_send_version(int chan_id)
+{
+    int error;
+    struct stream *s;
+
+    LOG(0, ("audio_send_version:"));
+    make_stream(s);
+    init_stream(s, 32);
+    out_uint8(s, 1); /* MSG_SNDIN_VERSION */
+    out_uint32_le(s, 1); /* version */
+    error = chansrv_drdynvc_data(chan_id, s->data, 5);
+    free_stream(s);
+    return error;
+}
+
+/*****************************************************************************/
+static int
+audin_open_response(int chan_id, int creation_status)
+{
+    LOG(0, ("audin_open_response: creation_status %d", creation_status));
+    if (creation_status == 0)
+    {
+        return audio_send_version(chan_id);
+    }
+    return 0;
+}
+
+/*****************************************************************************/
+static int
+audin_close_response(int chan_id)
+{
+    LOG(0, ("audin_close_response:"));
+    return 0;
+}
+
+/*****************************************************************************/
+static int
+audin_data_first(int chan_id, char *data, int bytes, int total_bytes)
+{
+    LOG(0, ("audin_data_first:"));
+    return 0;
+}
+
+/*****************************************************************************/
+static int
+audin_data(int chan_id, char *data, int bytes)
+{
+    LOG(0, ("audin_data:"));
+    g_hexdump(data, bytes);
+    return 0;
+}
+
+/*****************************************************************************/
+int
+audin_init(void)
+{
+    int error;
+
+    LOG(0, ("audin_init:"));
+    g_memset(&g_audin_info, 0, sizeof(g_audin_info));
+    g_audin_info.open_response = audin_open_response;
+    g_audin_info.close_response = audin_close_response;
+    g_audin_info.data_first = audin_data_first;
+    g_audin_info.data = audin_data;
+    error = chansrv_drdynvc_open("AUDIO_INPUT", 1, &g_audin_info,
+                                 &g_audio_chanid);
+    LOG(0, ("audin_init: error %d", error));
+    return error;
+}

sesman/chansrv/audin.h

@@ -0,0 +1,25 @@
+/**
+ * xrdp: A Remote Desktop Protocol server.
+ *
+ * Copyright (C) Jay Sorg 2019
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _AUDIN_H_
+#define _AUDIN_H_
+
+int
+audin_init(void);
+
+#endif

sesman/chansrv/chansrv.c

@@ -37,6 +37,7 @@
 #include "xcommon.h"
 #include "chansrv_fuse.h"
 #include "xrdp_sockets.h"
+#include "audin.h"
 
 static struct trans *g_lis_trans = 0;
 static struct trans *g_con_trans = 0;
@@ -415,6 +416,8 @@ process_message_channel_setup(struct stream *s)
         rail_init();
     }
 
+    audin_init();
+
     return rv;
 }