Change in pysim[master]: Enable parsing of ISIM Service table (IST)

[herlesupreeth]

herlesupreeth has uploaded this change for review. ( https://gerrit.osmocom.org/c/pysim/+/17882 )


Change subject: Enable parsing of ISIM Service table (IST)
......................................................................

Enable parsing of ISIM Service table (IST)

As per TS 31.103, This EF indicates which ISIM services are available.
If a service is not indicated as available in the ISIM, the ME shall not select this service.

Parsing of IST is achieved by first selecting the ISIM application using its AID.
This is followed by selecting EF.IST with File ID - 6f07 in ADF.ISIM

Change-Id: I3f0a7227360b72a707dc1bcc4cc9c8a4ec7ad2b2
---
M pySim-read.py
1 file changed, 16 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/82/17882/1

diff --git a/pySim-read.py b/pySim-read.py
index 8f2b675..fdfc1dc 100755
--- a/pySim-read.py
+++ b/pySim-read.py
@@ -30,6 +30,7 @@
 import sys
 from pySim.ts_51_011 import EF, DF, EF_SST_map
 from pySim.ts_31_102 import EF_UST_map
+from pySim.ts_31_103 import EF_IST_map
 
 from pySim.commands import SimCardCommands
 from pySim.cards import card_detect, Card
@@ -266,5 +267,20 @@
 		else:
 			print("USIM Service Table: Can't read, response code = %s" % (sw,))
 
+	# Check whether we have th AID of ISIM, if so select it by its AID
+	# EF.IST - File Id in ADF ISIM : 6f07
+	if '9000' == card.select_adf_by_aid(adf="isim"):
+		# EF.IST
+		(res, sw) = card.read_binary('6f07')
+		if sw == '9000':
+			avail_srvs = parse_st(res)
+			print("ISIM Service Table: %s" % res)
+			# Print those which are available
+			for s in avail_srvs:
+				if s in EF_IST_map:
+					print('\tService %d - %s: %s' % (s, EF_IST_map[s], s in avail_srvs))
+		else:
+			print("ISIM Service Table: Can't read, response code = %s" % (sw,))
+
 	# Done for this card and maybe for everything ?
 	print("Done !\n")

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Gerrit-Project: pysim
Gerrit-Branch: master
Gerrit-Change-Id: I3f0a7227360b72a707dc1bcc4cc9c8a4ec7ad2b2
Gerrit-Change-Number: 17882
Gerrit-PatchSet: 1
Gerrit-Owner: herlesupreeth <herlesupreeth at gmail.com>
Gerrit-MessageType: newchange
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