From ae92cbd542086a508343dd88fd3b980f3be1b3af Mon Sep 17 00:00:00 2001
From: Jing Liu <liujbjl@linux.vnet.ibm.com>
Date: Fri, 23 Sep 2016 08:06:11 +0200
Subject: chardev: Basic support for TN3270
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This introduces basic support for TN3270, which needs to negotiate
three Telnet options during handshake:
  - End of Record
  - Binary Transmission
  - Terminal-Type

As a basic implementation, this simply ignores NOP and Interrupt
Process(IP) commands. More work should be done for them later.

For more details, please refer to RFC 854 and 1576.

Signed-off-by: Jing Liu <liujbjl@linux.vnet.ibm.com>
Signed-off-by: Yang Chen <bjcyang@linux.vnet.ibm.com>
Reviewed-by: QingFeng Hao <haoqf@linux.vnet.ibm.com>
Acked-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 include/sysemu/char.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include/sysemu')

diff --git a/include/sysemu/char.h b/include/sysemu/char.h
index 450881d42c..f6d5cd0c9b 100644
--- a/include/sysemu/char.h
+++ b/include/sysemu/char.h
@@ -7,6 +7,14 @@
 #include "qemu/bitmap.h"
 #include "qom/object.h"
 
+#define IAC_EOR 239
+#define IAC_SE 240
+#define IAC_NOP 241
+#define IAC_BREAK 243
+#define IAC_IP 244
+#define IAC_SB 250
+#define IAC 255
+
 /* character device */
 
 typedef enum {
-- 
cgit v1.2.3