simtrace

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352 discussions

SIMtrace2: Debug UART does not work
by William OS 28 Sep '26

28 Sep '26

Hello everyone, I am having issue with listening for the logs from the debug UART for SIMtrace2. I run "make log" and I get: Sep 28 13:56:17 (@(@��(B(B(B�@B(B(B@(@(@��(BB(B(B(@(((B((@B(B�@(B��@(@�B(B(B(((B�(B(B(��@�� Sep 28 13:56:17 (B(�@@(@B(B�(��@(@�(B�@(B(�@B(BB(B(@(@B(B((@B(B((@@(�@B(B(B(�@�@�B(B��@B(B(B@(@ Sep 28 13:56:17 ((B(@(@@(@(��((B(B(B(�((B(�@B(�(B(B(BB(B(�@(B((B((B(B(B(B((BB(BR��(B(@(@@(B(�BB(@(@@( Sep 28 13:56:17 B(B(@�@(�(@(@@(@��(B(�(B(B(��(B(B(B@(��(B�@(B(B(B�@(@(@(@�(�(@@((B(�B(B@(@ I tried different setting combinations in stty, I tried minicom and picocom, and all resulted in either nothing being printed or more garbage, never actual ASCII logs. Here is the stty configuration: speed 921600 baud; rows 0; columns 0; line = 0; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; discard = ^O; min = 1; time = 0; -parenb -parodd -cmspar cs8 hupcl -cstopb cread clocal -crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel -iutf8 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke -flusho -extproc I also tried official bin for trace and build from source for trace and cardem, with same results. System info: Debian GNU/Linux 13.7 (trixie) Linux 6.12.107+deb13-amd64 SIMtrace2 v1.4pi sysmocom USB serial cable CP2102-25 Thank you, William

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[PATCH] cat: Fix alpha identifier
by Eric Salem 27 Sep '26

27 Sep '26

Add implementation so that it actually prints. Signed-off-by: Eric Salem <ericsalem(a)gmail.com> --- pySim/cat.py | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/pySim/cat.py b/pySim/cat.py index e65af3f27ffe..80cd0028db81 100644 --- a/pySim/cat.py +++ b/pySim/cat.py @@ -24,7 +24,7 @@ from construct import Int8ub, Int16ub, Byte, BitsInteger from construct import Struct, Enum, BitStruct, this from construct import Switch, GreedyRange, FlagsEnum, Adapter from osmocom.tlv import TLV_IE, COMPR_TLV_IE, BER_TLV_IE, TLV_IE_Collection -from osmocom.construct import PlmnAdapter, BcdAdapter, GsmStringAdapter, TonNpi, GsmString, Bytes, GreedyBytes +from osmocom.construct import PlmnAdapter, BcdAdapter, GsmOrUcs2Adapter, GsmStringAdapter, TonNpi, GsmString, Bytes, GreedyBytes from osmocom.utils import b2h, h2b from pySim.utils import dec_xplmn_w_act @@ -37,8 +37,7 @@ class Address(COMPR_TLV_IE, tag=0x86): # TS 102 223 Section 8.2 class AlphaIdentifier(COMPR_TLV_IE, tag=0x85): - # FIXME: like EF.ADN - pass + _construct = GsmOrUcs2Adapter(GreedyBytes) # TS 102 223 Section 8.3 class Subaddress(COMPR_TLV_IE, tag=0x88): -- 2.55.0

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Carrier-free applet loading + secp256k1 / ALG_ECDSA_PLAIN support: sysmoEUICC1 vs physical sysmoUSIM / dev UICC
by Pn Marian 17 May '26

17 May '26

Hi all, I'm validating a JavaCard applet on SIM hardware with no carrier involved, across both the eUICC and physical-UICC paths, and would value a steer from anyone who has done either end to end. Planned eUICC setup (from the eUICC manual + mode51 RSP series): - osmo-smdpp as a self-hosted SM-DP+ (test keys) - pySim / lpac as the LPA - a test-CI eUICC in plastic form factor (sysmoEUICC1-C2T, since a production-CI card rejects a test-signed SM-DP+) Planned physical-SIM setup: - a developer UICC where I hold the GP/ADM keys (looking at sysmoUSIM-SJA2 or a Thales/G+D dev kit) - applet load via pySim / GlobalPlatform Question 1 — loading a custom applet, both paths eUICC: the manual covers profile transport and the auth/download handshake well, but not how to author a profile package that carries a custom JavaCard applet (load file, GP install params, signing it so osmo-smdpp serves it). Is bundling the applet in the eUICC Profile Package the right carrier-free route, or is post-issuance GP load over a profile-supplied SD more practical for dev/test? Physical: for a dev UICC where I hold the keys, is pySim/GlobalPlatform load the expected route? A working reference for the profile-authoring step with a non-trivial applet is the one gap I can't close from the docs. Question 2 — crypto API exposed to the applet Independently of provisioning: does the JavaCard runtime on sysmoEUICC1, and on the physical sysmoUSIM line (or any dev/test card people here have actually probed), expose secp256k1 as a custom EC Fp curve with arbitrary domain parameters (via ECPrivateKey/ECPublicKey setters) AND plain ECDSA over an externally supplied 32-byte digest — ALG_ECDSA_PLAIN-style, no on-card hashing? The digest is Keccak-256 computed off-card, so hash-then-sign or P-256-only builds won't work. Two things would be especially useful: a reliable way to probe a card's crypto API empirically over APDU (instantiate the keypair, see what throws), and whether this capability is known to differ between the eUICC and physical product lines. I've gone through the eUICC manual, the osmo-smdpp wiki, and the mode51 walkthroughs before posting. Pointers, partial answers, or a hard "no, because X" are all welcome. Thanks, Francis Abuga

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1 0

sysmoISIM-SJA2 applet install
by mail＠micahflack.com 06 Apr '26

06 Apr '26

Hello! I tried searching the mailing list to see if anyone else has had this issue, but I didn't find anything relevant. Explanation: I am trying to install my java applets to an older sysmoISIM-SJA2 card with the "SELECTABLE" and "DEFAULT" privilges/flags. The reason being that I need my applets to auto select itself rather than manual interaction through the SIM Toolkit menu. Currently, I am using the shadysim-isim tool to load my applets, however, there is no option to make applets defaultSelect. And, it doesn't look like pySim supports this currently either. GlobalProtectPro (gp.jar) does have support for these cmds, but it looks like they need addtional parameters specific to the SJA2 when installing. Does anyone know what the exact parameters needed are? Someone else noted this issue under the GlobalProtectPro repo - but I'm not really knowledgeable enough to understand what was said. Link to the issue: https://github.com/martinpaljak/GlobalPlatformPro/issues/293 Link to their solution: https://github.com/martinpaljak/GlobalPlatformPro/issues/293#issuecomment-1… Thanks!

4 8

Supported Phone Models Simtrace 2
by Nico Naudé 26 Feb '26

26 Feb '26

Good day, I have been trying to get Simtrace2 to connect to a 'newish' phone model, but to no avail. I can not get the SIM to be recognised in the tray (I confirmed that the ribbon flex cable's continuity is OK too). I saw a sysmocom thread <https://osmocom.org/issues/6181> where a Google Pixel 5 succeeded in tracing some TPDUs. Does anyone have some hints as to how to get this working on a non-M.2 form factor modem and ideally in a handled? I have tested with the following phone models, all with the same result of no SIM detection: Google Pixel 3A & 5, Samsung S21-S24, iPhone 13 & 14 and OnePlus 9 Kind regards, Nico

2 1

eSIM Profile Personalization and Dynamic Updates
by s.schmidt＠embedsmart.de 13 Feb '26

13 Feb '26

Dear Osmocom community, I am looking into the osmo-smdpp.py proof-of-concept and the pySim library (specifically looking at pySim/esim/saip/personalization.py). My goal is to customize an eSIM profile so that it presents a generic/custom string to the base station during the connection establishment. I have a few specific questions regarding the best approach: * Profile Personalization: In personalization.py, which Elementary Files (EF) would you recommend modifying to ensure a custom string is visible to the network side (e.g., EF.SPN, EF.PNN, or others)? * Dynamic Content: Is it feasible to update these strings dynamically on the eUICC without re-downloading the entire profile, for example via a Java Card applet or specific OTA commands supported by the Osmocom stack? * Lab Setup: I am hoping to set up a local base station to test the interaction with this modified eSIM. Which hardware would you recommend for testing this? I already have a red pitaya and am considering setting up a radio front-end for it. However, Calypso phones are cheaper and I wonder if they would be sufficient for this test. Any guidance on which parts of the pySim codebase I should focus on for this "on-the-fly" customization would be greatly appreciated. Best regards, Siemon

2 2

pySIM packaging
by Sergey Ryazanov 04 Feb '26

04 Feb '26

Hi Harald, Thank you for developing and maintaining such great software as pySIM. To support these Gentoo users who are curious about telecom I have crated an unofficial ebuild (package) with all required dependencies. Thanks to Pentoo maintainers, these packages are available for broader audience via the corresponding portage overlay [1]. While creating the package, I faced few obstacles: 1. absence of a fresh release, so pySIM was packaged in a bleeding edge manner when on every installation the latest snapshot is downloaded and installed 2. asn1tools fork with single custom change Installation of the latest snapshot might be inconvenient for end-users since cannot offer stability and subjected to a random issues which you can expect from a software under a heavy development. As far as I understand, asn1tools has been forked to introduce order to SET and SEQUENCE types. It is hard to me to estimate all the side-effects of this change. So, I've packaged the fork as a separate package 'asn1tools-osmocom'. What also can be inconvenient for ordinary users due to possible collision with the original package. Also, upstream asn1tools has got a pyparsing fix [3] for tests which I had to disable creating asn1tools-osmocom. Harald, do you have any plans to collaborate with asn1tools maintainers to get the ordered types available in the upstream? This can greatly facilitate the packaging work and make pySIM stably available for end-users. 1. https://github.com/pentoo/pentoo-overlay/commit/5011abefd624db8544a95d3515f… 2. https://github.com/osmocom/asn1tools/commit/44277cdb34959196f317b6a02af20a4… 3. https://github.com/eerimoq/asn1tools/commit/bce6f497711e47cc3b442e073c8f264… -- Sergey

2 1

There is a new problem, bankd port 9999 has been occupied
by gmaillee＠126.com 03 Jan '26

03 Jan '26

Der Harald Welte First of all thank you for your reply. I tried again today and now I have this problem. Early preparations: Create a linux (debian11) (this server server) Install the following dependencies osmocom-latest_1.0.0_amd64.deb libosmocore20_1.8.0_amd64.deb libosmocodec0_1.8.0_amd64.deb libosmoisdn0_1.8.0_amd64.deb libosmogsm18_1.8.0_amd64.deb libosmocoding0_1.8.0_amd64.deb libosmovty9_1.8.0_amd64.deb libosmogb14_1.8.0_amd64.deb libosmoctrl0_1.8.0_amd64.deb libosmosim2_1.8.0_amd64.deb libosmousb0_1.8.0_amd64.deb libosmocore_1.8.0_amd64.deb Then I cloned two linux (debian11) one for the card reader part (bank) and one for the client-st2+simtrace2 part. bankd install dependencies libosmoabis10_1.4.1_amd64.deb libosmo-rspro2_1.0.0_amd64.deb osmo-remsim-bankd_1.0.0_amd64.deb Installed pcscd, opened pcsc and set "1", "0", "HID Global OMNIKEY 6121 Smart Card Reader \[OMNIKEY 6121 Smart Card Reader\] 00 00" in the csv file I run the program and wait till this root@debian:/bin# sudo lsof -i :9999 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME osmo-rems 469 root 4u IPv4 12597 0t0 TCP *:9999 (LISTEN) root@debian:/bin# osmo-remsim-bankd -i 192.168.2.122 -I 192.168.2.105 -n 1 -b 1 2329 DMAIN INFO bankd_pcsc.c:105 PC/SC slot name: 1/0 -> regex 'HID Global OMNIKEY 6121 Smart Card Reader \[OMNIKEY 6121 Smart Card Reader\] 00 00' 2329 DRSPRO INFO ../rspro_client_fsm.c:307 RSPRO_CLIENT(server){REESTABLISH}: Creating TCP connection to server at 192.168.2.122:9998 2329 DLGLOBAL ERROR socket.c:933 unable to bind socket:192.168.2.105:9999: Address already in use 2329 DLGLOBAL ERROR socket.c:945 no suitable addr found for: 192.168.2.105:9999 root@debian:/bin# osmo-remsim-bankd -i 192.168.2.122 -I 192.168.2.105 -n 1 -b 1 -P 1314 2333 DMAIN INFO bankd_pcsc.c:105 PC/SC slot name: 1/0 -> regex 'HID Global OMNIKEY 6121 Smart Card Reader \[OMNIKEY 6121 Smart Card Reader\] 00 00' 2333 DRSPRO INFO ../rspro_client_fsm.c:307 RSPRO_CLIENT(server){REESTABLISH}: Creating TCP connection to server at 192.168.2.122:9998 2334 DBANKDW INFO bankd_main.c:442 [000 INIT] Changing state to INIT 2334 DBANKDW INFO bankd_main.c:442 [000 INIT] Changing state to ACCEPTING 2333 DLINP NOTICE input/ipa.c:141 192.168.2.122:9998 connection done 2333 DRSPRO NOTICE ../rspro_client_fsm.c:127 RSPRO_CLIENT(server){REESTABLISH}: RSPRO link to 192.168.2.122:9998 UP I first checked port 9999. This is the port on my bankd side, and it shows that it is being occupied by osmo-remsim. Because I read your reply that you need to bind the local port now, so I set -I, but when I set it like this, I enter the first command, it shows that my port is occupied, bankd can’t start, when I try it for the second time. The port -p 1314 is specified, and bankd is successfully started, which can also be seen in the banks of the server. But client-st2 reads port 9999, which is very contradictory.I think port 9999 of bankd is the same as port 9998 of server. It should not need to be set, but if it is not set, it will prompt an error! Why?

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