Add patch from GIT repository to improve AMT protocol support.

This stops "amtterm" from disconnecting repeatedly from the ME of a
Lenovo ThinkServer TS140.

3 files changed, 149 insertions, 2 deletions

diff --git a/sysutils/amtterm/patches/patch-RedirectionConstants.h b/sysutils/amtterm/patches/patch-RedirectionConstants.h
new file mode 100644
index 00000000000..b028c0880a5
--- /dev/null
+++ b/sysutils/amtterm/patches/patch-RedirectionConstants.h
@@ -0,0 +1,40 @@
+$NetBSD: patch-RedirectionConstants.h,v 1.1 2015/03/16 19:19:58 tron Exp $
+
+Decode SOL_CONTROLS_FROM_HOST messages. This fixes compatiblity problems
+with the AMT interface of an Lenovo ThinkServer TS140.
+
+Patch taken from GIT repository:
+
+https://www.kraxel.org/cgit/amtterm/patch/?id=0ece5135fef56dbd0d94957c334655a57adb7212
+
+--- RedirectionConstants.h.orig	2011-05-26 10:19:45.000000000 +0100
++++ RedirectionConstants.h	2015-03-16 18:55:44.000000000 +0000
+@@ -24,6 +24,8 @@
+ #define SOL_KEEP_ALIVE_PING                 0x24  //Console to Host
+ #define SOL_KEEP_ALIVE_PONG                 0x25  //Host to Console
+ #define SOL_DATA_TO_HOST                    0x28  //Console to host
++#define SOL_CONTROLS_FROM_HOST              0x29  //Host to Console
++
+ #define SOL_DATA_FROM_HOST                  0x2A  //Host to Console
+ #define SOL_HEARTBEAT                       0x2B
+ 
+@@ -33,6 +35,19 @@
+ #define END_SOL_REDIRECTION_LENGTH             8
+ #define END_SOL_REDIRECTION_REPLY_LENGTH       8
+ 
++// Control message control bits (message 0x29)
++#define RTS_CONTROL                            1
++#define DTR_CONTROL                            2 
++#define BREAK_CONTROL                          4
++
++// Control message status bits (message 0x29)
++#define TX_OVERFLOW                            1
++#define LOOPBACK_ACTIVE                        2
++#define SYSTEM_POWER_STATE                     4
++#define RX_FLUSH_TIMEOUT                       8
++#define TESTMODE_ACTIVE                       16
++
++
+ //IDER Messages Formats
+ #define START_IDER_REDIRECTION              0x40
+ #define START_IDER_REDIRECTION_REPLY        0x41
diff --git a/sysutils/amtterm/patches/patch-redir.c b/sysutils/amtterm/patches/patch-redir.c
index dac368a0ffb..6c7e153594c 100644
--- a/sysutils/amtterm/patches/patch-redir.c
+++ b/sysutils/amtterm/patches/patch-redir.c
@@ -1,5 +1,14 @@
---- redir.c.orig	2011-05-26 18:19:45.000000000 +0900
-+++ redir.c	2012-08-07 13:08:49.000000000 +0900
+$NetBSD: patch-redir.c,v 1.2 2015/03/16 19:19:58 tron Exp $
+
+Decode SOL_CONTROLS_FROM_HOST messages. This fixes compatiblity problems
+with the AMT interface of an Lenovo ThinkServer TS140.
+
+Patch taken from GIT repository:
+
+https://www.kraxel.org/cgit/amtterm/patch/?id=0ece5135fef56dbd0d94957c334655a57adb7212
+
+--- redir.c.orig	2011-05-26 10:19:45.000000000 +0100
++++ redir.c	2015-03-16 19:16:49.000000000 +0000
 @@ -281,8 +281,11 @@
  
  	switch (count) {
@@ -14,3 +23,69 @@
  	case 0:
  	    snprintf(r->err, sizeof(r->err), "EOF from socket");
  	    return -1;
+@@ -298,6 +301,9 @@
+     return bshift;
+ }
+ 
++static int in_loopback_mode = 0;
++static int powered_off = 0;
++
+ int redir_data(struct redir *r)
+ {
+     int rc, bshift;
+@@ -382,6 +388,55 @@
+ 		goto again;
+ 	    redir_stop(r);
+ 	    break;
++	case SOL_CONTROLS_FROM_HOST: {
++	  bshift = r->blen; /* FIXME */
++	  if (r->blen < bshift)
++	    goto again;
++	  
++	  /* Host sends this message to the Management Console when
++	   * the host has changed its COM port control lines. This
++	   * message is likely to be one of the first messages that
++	   * the Host sends to the Console after it starts SOL
++	   * redirection.
++	   */
++	  struct controls_from_host_message *msg = (struct controls_from_host_message *) r->buf;
++	  //printf("Type %x, control %d, status %d\n", msg->type, msg->control, msg->status);
++	  if (msg->status & LOOPBACK_ACTIVE) {
++	    if (r->verbose)
++	      fprintf (stderr, "Warning, SOL device is running in loopback mode.  Text input may not be accepted\n");
++	    in_loopback_mode = 1;
++	  } else if (in_loopback_mode) {
++	    if (r->verbose)
++	      fprintf (stderr, "SOL device is no longer running in loopback mode\n");
++	    in_loopback_mode = 0;
++	  }
++
++	  if (0 == (msg->status & SYSTEM_POWER_STATE))  {
++	    if (r->verbose)
++	      fprintf (stderr, "The system is powered off.\n");
++	    powered_off = 1;
++	  } else if (powered_off) {
++	    if (r->verbose)
++	      fprintf (stderr, "The system is powered on.\n");
++	    powered_off = 0;
++	  }
++	  
++	  if (r->verbose) {
++	    if (msg->status & (TX_OVERFLOW|RX_FLUSH_TIMEOUT|TESTMODE_ACTIVE))
++	      fprintf (stderr, "Other unhandled status condition\n");
++	    
++	    if (msg->control & RTS_CONTROL) 
++	      fprintf (stderr, "RTS is asserted on the COM Port\n");
++	    
++	    if (msg->control & DTR_CONTROL) 
++	      fprintf (stderr, "DTR is asserted on the COM Port\n");
++	    
++	    if (msg->control & BREAK_CONTROL) 
++	      fprintf (stderr, "BREAK is asserted on the COM Port\n");
++	  }
++
++	  break;
++	}
+ 	default:
+ 	    snprintf(r->err, sizeof(r->err), "%s: unknown r->buf 0x%02x",
+ 		     __FUNCTION__, r->buf[0]);
diff --git a/sysutils/amtterm/patches/patch-redir.h b/sysutils/amtterm/patches/patch-redir.h
new file mode 100644
index 00000000000..63b70d303d1
--- /dev/null
+++ b/sysutils/amtterm/patches/patch-redir.h
@@ -0,0 +1,32 @@
+$NetBSD: patch-redir.h,v 1.1 2015/03/16 19:19:58 tron Exp $
+
+Decode SOL_CONTROLS_FROM_HOST messages. This fixes compatiblity problems
+with the AMT interface of an Lenovo ThinkServer TS140.
+
+Patch taken from GIT repository:
+
+https://www.kraxel.org/cgit/amtterm/patch/?id=0ece5135fef56dbd0d94957c334655a57adb7212
+
+--- redir.h.orig	2011-05-26 10:19:45.000000000 +0100
++++ redir.h	2015-03-16 18:55:44.000000000 +0000
+@@ -1,4 +1,5 @@
+ #include "RedirectionConstants.h"
++#include <stdint.h>
+ 
+ enum redir_state {
+     REDIR_NONE      =  0,
+@@ -38,6 +39,14 @@
+     int (*cb_recv)(void *cb_data, unsigned char *buf, int len);
+ };
+ 
++struct __attribute__ ((__packed__)) controls_from_host_message {
++    unsigned char type; // 0x29
++    unsigned char reserved[3];
++    uint32_t      host_sequence_number;
++    unsigned char control; 
++    unsigned char status;
++};
++
+ const char *redir_state_name(enum redir_state state);
+ const char *redir_state_desc(enum redir_state state);
+