From e707a2fe0b3d165ccc87d18252ecaaed10b53f8a Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@osmocom.org>
Date: Sat, 13 Jul 2024 16:52:51 +0200
Subject: [PATCH] WIP

Change-Id: If7a0d6fb5e0a823530a1e24062712615fc414ce5
---
 pySim/sms.py                |  7 +++++++
 tests/unittests/test_ota.py | 21 +++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/pySim/sms.py b/pySim/sms.py
index aefc8746..7ce5a300 100644
--- a/pySim/sms.py
+++ b/pySim/sms.py
@@ -30,6 +30,13 @@ from smpp.pdu import pdu_types, operations
 
 BytesOrHex = typing.Union[Hexstr, bytes]
 
+# 07
+#  00 03 000201 # part 01 of 02 in reference 00
+#  70 00
+
+# 05
+#   00 03 000202
+
 class UserDataHeader:
     # a single IE in the user data header
     ie_c = Struct('iei'/Int8ub, 'length'/Int8ub, 'value'/Bytes(this.length))
diff --git a/tests/unittests/test_ota.py b/tests/unittests/test_ota.py
index fcbf3049..8cb85c00 100644
--- a/tests/unittests/test_ota.py
+++ b/tests/unittests/test_ota.py
@@ -74,6 +74,27 @@ class Test_SMS_AES128(unittest.TestCase):
         self.assertEqual(b2h(dec_tar), b2h(self.tar))
         self.assertEqual(dec_spi, spi)
 
+    def test_open_channel(self):
+        spi = self.spi_base
+        tpdu = h2b('40048111227ff6407070611535007e070003000201700000781516011212000001ccda206e8b0d46304247bf00bfdc9853eed2a826f9af8dc7c2974ce2cb9bb55cc1a8577e047cc8f5d450380ba86b25354fe69f58884f671d7ace0c911f7c74830dc1d58b62cce4934568697ba1f577eecbca26c5dbfa32b0e2f0877948a9fb46a122e4214947386f467de11c')
+        #'40048111227ff6407070611535000a0500030002027b6abed3'
+        submit = SMS_DELIVER.from_bytes(tpdu)
+        submit.tp_udhi = True
+        print(submit)
+        #print("UD: %s" % b2h(submit.tp_ud))
+        #print("len(UD)=%u, UDL=%u" % (len(submit.tp_ud), submit.tp_udl))
+        udhd, data = UserDataHeader.from_bytes(submit.tp_ud)
+        print("UDHD: %s" % udhd)
+        print("DATA: %s" % b2h(data))
+        tpdu2 = h2b('40048111227ff6407070611535000a0500030002027b6abed3')
+        submit2 = SMS_DELIVER.from_bytes(tpdu2)
+        print(submit2)
+        udhd2, data2 = UserDataHeader.from_bytes(submit2.tp_ud)
+        print("UDHD: %s" % udhd2)
+        print("DATA: %s" % b2h(data2))
+        dec_tar, dec_spi, dec_apdu = self.dialect.decode_cmd(self.od, data + data2)
+        print(dec_apdu)
+
 
 class Test_SMS_3DES(unittest.TestCase):
     tar = h2b('b00000')