<p>herlesupreeth has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/pysim/+/21953">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">pySim-read.py: Enable reading of EF.IMPU from ISIM<br><br>IMS public user identity (IMPU)<br>As per TS1.103, this EF contains one or more records, with each record able<br>to hold a public SIP Identity (SIP URI) of the user. EF.IMPI consist of URI TLV data<br>object values see IETF RFC 3261. The URI shall be encoded to an octet string according<br>to UTF-8 encoding rules as specified in IETF RFC 3629<br><br>Reading of EF.IMPU is achieved by first selecting the ISIM application using its AID.<br>This is followed by selecting EF.IMPU with File ID - 6f04 in ADF.ISIM<br><br>Change-Id: Icf78a564aeaf4254658d3b018ff57dfc4b987e6f<br>---<br>M pySim-read.py<br>M pySim/cards.py<br>M pysim-testdata/sysmoISIM-SJA2.ok<br>3 files changed, 32 insertions(+), 0 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/53/21953/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/pySim-read.py b/pySim-read.py</span><br><span>index a7d9063..4047598 100755</span><br><span>--- a/pySim-read.py</span><br><span>+++ b/pySim-read.py</span><br><span>@@ -326,6 +326,14 @@</span><br><span> except Exception as e:</span><br><span> print("IMS private user identity: Can't read file -- " + str(e))</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ # EF.IMPU - IMS public user identity</span><br><span style="color: hsl(120, 100%, 40%);">+ try:</span><br><span style="color: hsl(120, 100%, 40%);">+ if card.file_exists(EF_ISIM_ADF_map['IMPU']):</span><br><span style="color: hsl(120, 100%, 40%);">+ res = card.read_impu()</span><br><span style="color: hsl(120, 100%, 40%);">+ print("IMS public user identity:\n%s" % (len(res) and res or '\tNot available\n',))</span><br><span style="color: hsl(120, 100%, 40%);">+ except Exception as e:</span><br><span style="color: hsl(120, 100%, 40%);">+ print("IMS public user identity: Can't read file -- " + str(e))</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> # Check whether we have th AID of ISIM, if so select it by its AID</span><br><span> # EF.IST - File Id in ADF ISIM : 6f07</span><br><span> if '9000' == card.select_adf_by_aid(adf="isim"):</span><br><span>diff --git a/pySim/cards.py b/pySim/cards.py</span><br><span>index 17b7bce..56597b0 100644</span><br><span>--- a/pySim/cards.py</span><br><span>+++ b/pySim/cards.py</span><br><span>@@ -385,6 +385,20 @@</span><br><span> else:</span><br><span> return (None, sw)</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ def read_impu(self):</span><br><span style="color: hsl(120, 100%, 40%);">+ rec_cnt = self._scc.record_count(EF_ISIM_ADF_map['IMPU'])</span><br><span style="color: hsl(120, 100%, 40%);">+ impu_recs = ""</span><br><span style="color: hsl(120, 100%, 40%);">+ for i in range(0, rec_cnt):</span><br><span style="color: hsl(120, 100%, 40%);">+ (res, sw) = self._scc.read_record(EF_ISIM_ADF_map['IMPU'], i + 1)</span><br><span style="color: hsl(120, 100%, 40%);">+ if sw == '9000':</span><br><span style="color: hsl(120, 100%, 40%);">+ # Skip the inital tag value ('80') byte and get length of contents</span><br><span style="color: hsl(120, 100%, 40%);">+ length = int(res[2:4], 16)</span><br><span style="color: hsl(120, 100%, 40%);">+ content = h2s(res[4:4+(length*2)])</span><br><span style="color: hsl(120, 100%, 40%);">+ impu_recs += "\t%s\n" % (len(content) and content or 'Not available')</span><br><span style="color: hsl(120, 100%, 40%);">+ else:</span><br><span style="color: hsl(120, 100%, 40%);">+ impu_recs += "IMS public user identity: Can't read, response code = %s\n" % (sw)</span><br><span style="color: hsl(120, 100%, 40%);">+ return impu_recs</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> </span><br><span> class _MagicSimBase(Card):</span><br><span> """</span><br><span>diff --git a/pysim-testdata/sysmoISIM-SJA2.ok b/pysim-testdata/sysmoISIM-SJA2.ok</span><br><span>index 335c886..26e20b0 100644</span><br><span>--- a/pysim-testdata/sysmoISIM-SJA2.ok</span><br><span>+++ b/pysim-testdata/sysmoISIM-SJA2.ok</span><br><span>@@ -184,6 +184,16 @@</span><br><span> </span><br><span> Home Network Domain Name: Not available</span><br><span> IMS private user identity: Not available</span><br><span style="color: hsl(120, 100%, 40%);">+IMS public user identity:</span><br><span style="color: hsl(120, 100%, 40%);">+ Not available</span><br><span style="color: hsl(120, 100%, 40%);">+ Not available</span><br><span style="color: hsl(120, 100%, 40%);">+ Not available</span><br><span style="color: hsl(120, 100%, 40%);">+ Not available</span><br><span style="color: hsl(120, 100%, 40%);">+ Not available</span><br><span style="color: hsl(120, 100%, 40%);">+ Not available</span><br><span style="color: hsl(120, 100%, 40%);">+ Not available</span><br><span style="color: hsl(120, 100%, 40%);">+ Not available</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> ISIM Service Table: 190200</span><br><span> Service 1 - P-CSCF address</span><br><span> Service 4 - GBA-based Local Key Establishment Mechanism</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/pysim/+/21953">change 21953</a>. 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<div style="display:none"> Gerrit-Project: pysim </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: Icf78a564aeaf4254658d3b018ff57dfc4b987e6f </div>
<div style="display:none"> Gerrit-Change-Number: 21953 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: herlesupreeth <herlesupreeth@gmail.com> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>