From 8b2412de961a11b9b2007772f6b08b7293dd3d83 Mon Sep 17 00:00:00 2001
From: DJ2LS <75909252+DJ2LS@users.noreply.github.com>
Date: Sun, 4 Dec 2022 16:56:12 +0100
Subject: [PATCH] added respond to call

---
 tnc/data_handler.py | 33 +++++++++++++++++++++------------
 tnc/sock.py         | 12 ++++++++++++
 tnc/static.py       |  1 +
 3 files changed, 34 insertions(+), 12 deletions(-)

diff --git a/tnc/data_handler.py b/tnc/data_handler.py
index 8a72cbfc..8a8df90e 100644
--- a/tnc/data_handler.py
+++ b/tnc/data_handler.py
@@ -1499,6 +1499,10 @@ class DATA:
         Args:
           data_in:bytes:
         """
+        # if we don't want to respond to calls, return False
+        if not static.RESPOND_TO_CALL:
+            return False
+
         self.IS_ARQ_SESSION_MASTER = False
         static.ARQ_SESSION_STATE = "connecting"
 
@@ -1902,6 +1906,11 @@ class DATA:
         """
         # We've arrived here from process_data which already checked that the frame
         # is intended for this station.
+
+        # stop processing if we don't want to respond to a call when not in a arq session
+        if not static.RESPOND_TO_CALL and not static.ARQ_SESSION:
+            return False
+
         self.arq_file_transfer = True
         self.is_IRS = True
 
@@ -2208,18 +2217,18 @@ class DATA:
             dxcallsign = str(dxcallsign, "UTF-8"),
             snr=str(static.SNR),
         )
+        if static.RESPOND_TO_CALL:
+            ping_frame = bytearray(self.length_sig0_frame)
+            ping_frame[:1] = bytes([FR_TYPE.PING_ACK.value])
+            ping_frame[1:4] = static.DXCALLSIGN_CRC
+            ping_frame[4:7] = static.MYCALLSIGN_CRC
+            ping_frame[7:13] = static.MYGRID
 
-        ping_frame = bytearray(self.length_sig0_frame)
-        ping_frame[:1] = bytes([FR_TYPE.PING_ACK.value])
-        ping_frame[1:4] = static.DXCALLSIGN_CRC
-        ping_frame[4:7] = static.MYCALLSIGN_CRC
-        ping_frame[7:13] = static.MYGRID
-
-        self.log.info("[TNC] ENABLE FSK", state=static.ENABLE_FSK)
-        if static.ENABLE_FSK:
-            self.enqueue_frame_for_tx([ping_frame], c2_mode=FREEDV_MODE.fsk_ldpc_0.value)
-        else:
-            self.enqueue_frame_for_tx([ping_frame], c2_mode=FREEDV_MODE.datac0.value)
+            self.log.info("[TNC] ENABLE FSK", state=static.ENABLE_FSK)
+            if static.ENABLE_FSK:
+                self.enqueue_frame_for_tx([ping_frame], c2_mode=FREEDV_MODE.fsk_ldpc_0.value)
+            else:
+                self.enqueue_frame_for_tx([ping_frame], c2_mode=FREEDV_MODE.datac0.value)
 
     def received_ping_ack(self, data_in: bytes) -> None:
         """
@@ -2476,7 +2485,7 @@ class DATA:
             static.HAMLIB_FREQUENCY,
         )
 
-        if static.RESPOND_TO_CQ:
+        if static.RESPOND_TO_CQ and static.RESPOND_TO_CALL:
             self.transmit_qrv(dxcallsign)
 
     def transmit_qrv(self, dxcallsign: bytes) -> None:
diff --git a/tnc/sock.py b/tnc/sock.py
index ca842c11..03c2e4ae 100644
--- a/tnc/sock.py
+++ b/tnc/sock.py
@@ -226,6 +226,18 @@ def process_tnc_commands(data):
                     "[SCK] CQ command execution error", e=err, command=received_json
                 )
 
+        # SET ENABLE/DISABLE RESPOND TO CALL -----------------------------------------------------
+        if received_json["type"] == "set" and received_json["command"] == "respond_to_call":
+            try:
+                static.RESPOND_TO_CALL = received_json["state"] in ['true', 'True', True]
+                command_response("respond_to_call", True)
+
+            except Exception as err:
+                command_response("respond_to_call", False)
+                log.warning(
+                    "[SCK] CQ command execution error", e=err, command=received_json
+                )
+
         # SET ENABLE RESPOND TO CQ -----------------------------------------------------
         if received_json["type"] == "set" and received_json["command"] == "respond_to_cq":
             try:
diff --git a/tnc/static.py b/tnc/static.py
index b824e2b6..3fd3ad81 100644
--- a/tnc/static.py
+++ b/tnc/static.py
@@ -73,6 +73,7 @@ SCATTER: list = []
 ENABLE_SCATTER: bool = False
 ENABLE_FSK: bool = False
 RESPOND_TO_CQ: bool = False
+RESPOND_TO_CALL: bool = True # respond to cq, ping, connection request, file request if not in session
 # ---------------------------------
 
 # Audio Defaults