BEGIN:VCALENDAR VERSION:2.0 PRODID:-//pretalx//pretalx.sysmocom.de// BEGIN:VTIMEZONE TZID:CET BEGIN:STANDARD DTSTART:20001029T040000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:CET TZOFFSETFROM:+0200 TZOFFSETTO:+0100 END:STANDARD BEGIN:DAYLIGHT DTSTART:20000326T030000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:CEST TZOFFSETFROM:+0100 TZOFFSETTO:+0200 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:pretalx-osmodevcon2024-NRLXAB@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T110000 DTEND;TZID=CET:20240503T111500 DESCRIPTION:Welcome to the event\, organizational matters\, thanks to spons ors\, ... DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Welcome to OsmoDevCon 2024 - Harald Welte (sysmocom) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/NRLXAB/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-EZR7YN@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T111500 DTEND;TZID=CET:20240503T113000 DESCRIPTION:Not every participant knows every other participant\; Let's do a quick introduction round. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Brief Introductions - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/EZR7YN/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-SAX3FE@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T113000 DTEND;TZID=CET:20240503T120000 DESCRIPTION:The sysmocom team has been working on implementing an open sour ce GPRS modem for DARC on behalf of a grant by ARDC. This talk will presen t the current state of the implementation and demonstrate how to use it. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:GPRS support in osmocom-bb - Vadim Yanitskiy\, Pau Espin Pedrol URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/SAX3FE/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-CGVEVM@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T120000 DTEND;TZID=CET:20240503T130000 DESCRIPTION:TBD DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Operating Open Source Mobile Networks at Scale - Michael Iedema URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/CGVEVM/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-HZ993V@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T130000 DTEND;TZID=CET:20240503T143000 DESCRIPTION:Lunch DTSTAMP:20260410T173432Z LOCATION:Restaurant SUMMARY:Lunch (Fri) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/HZ993V/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-L3BXTR@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T143000 DTEND;TZID=CET:20240503T150000 DESCRIPTION:It's the year **2024**\, so that's 2.024K (or G for *grand*)\, right?\n\nWhat does it mean to use 2.024 G data (aka EDGE 2.5G) in the yea r 2024? DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:2.024 G - Keith Whyte URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/L3BXTR/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-RUHNZU@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T151500 DTEND;TZID=CET:20240503T154500 DESCRIPTION:AMR requires out-of-band negotiation of a set of bitrates.\nLet 's take a tour of the various ways AMR rates are represented across our te chnologies.\nHow do we\, in detail\, navigate this perilous landscape to s elect AMR rates so that call legs match? DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Codec resolution: AMR rates in 2G\, 3G and SIP - Neels Hofmeyr URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/RUHNZU/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-KLWCKH@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T154500 DTEND;TZID=CET:20240503T163000 DESCRIPTION:Summary of the architectural changes done over osmo-pcu code ba se over last years\, what we accomplished and possible next steps. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:OsmoPCU: past\, present and future - Pau Espin Pedrol URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/KLWCKH/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-ZBJWUP@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T170000 DTEND;TZID=CET:20240503T174500 DESCRIPTION:Traditional socket I/O via `read/write/recvfrom/sendto/recvmsg/ sendmsg` and friends creates a very high system call load. A highly-loade d osmo-bsc spends most of its time in syscall entry and syscall exit.\n\n` io_uring` is a modern Linux kernel mechanism to avoid this syscall overhea d. We have introduced the `osmo_io`API to libosmocore as a generic back-en d for non-blocking/asynchronous I/O and a back-end for our classic `osmo_f d` / `poll` approach as well as a new backend for `io_uring`.\n\nThe talk will cover\n* a very basic io_uring introduction\n* a description of the o smo_io API\n* the difficulties porting from osmo_fd to osmo_io\n* status o f porting various sub-systems over to osmo_io DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:High-performance I/O using io_uring via osmo_io - Andreas Eversberg \, Harald Welte (sysmocom) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/ZBJWUP/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-TKCAPQ@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T174500 DTEND;TZID=CET:20240503T183000 DESCRIPTION:The talk will provide an overview over\n* recent developments i n open5gs (2023)\n* current areas of work\n* outlook / roadmap DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:open5gs status: recent\, current and future developments - Sukchan Lee URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/TKCAPQ/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-XB9MRJ@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T183000 DTEND;TZID=CET:20240503T191500 DESCRIPTION:DebugMux is a vendor specific interface/protocol exposed by [So ny] Ericsson phones and modems. Similar to QMI (Qualcomm MSM Interface)\, it allows debugging the GSM/GPRS/UMTS stack at run-time. In this talk I wi ll demonstrate an open source DebugMux client software and share my findin gs about this interface\, as well as other interfaces working on top of it . DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:DebugMux: getting baseband logs from old Sony Ericsson phones - Vad im Yanitskiy URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/XB9MRJ/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-NTJBEG@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T191500 DTEND;TZID=CET:20240503T200000 DESCRIPTION:Harald will present the general ideas/plans about the Osmocom n on-for-profit and share draft bylaws. \n\nWe can have some related discus sions within this event and throughout the USSE and the next day\, as need ed. I just thought it's good to get this out of the door early\, before w e schedule the foundation assembly. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Proposal for Osmocom non-for-profit - Harald Welte (sysmocom) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/NTJBEG/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-DW9CUE@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T200000 DTEND;TZID=CET:20240503T213000 DESCRIPTION:Dinner DTSTAMP:20260410T173432Z LOCATION:Restaurant SUMMARY:Dinner (Fri) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/DW9CUE/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-NRMJRW@pretalx.sysmocom.de DTSTART;TZID=CET:20240503T213000 DTEND;TZID=CET:20240504T000000 DESCRIPTION:Chat + Hack + Drink DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Unstructured Supplementary Social Event (USSE) Friday - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/NRMJRW/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-EWYAMR@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T100000 DTEND;TZID=CET:20240504T101500 DESCRIPTION:Daily Schedule Planning/Update DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Schedule Planning/Update (Sat) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/EWYAMR/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-DYGQXN@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T101500 DTEND;TZID=CET:20240504T110000 DESCRIPTION:The GlobalPlatform Card Specification and its many amendments p lay a significant role in most real-world USIM/ISIM\, and even more so in eUICC.\n\nThe talk will try to provide an overview of what GlobalPlatform does in the telecommunications context. \n\nTopics include:\n* security d omains\n* key loading\n* card and application life cycle\n* loading and in stallation of applications\n* Secure Channel Protocols SCP02\, SCP03 DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:GlobalPlatform in USIM and eUICC - Harald Welte (sysmocom) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/DYGQXN/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-HZVJQK@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T110000 DTEND;TZID=CET:20240504T113000 DESCRIPTION:First\, we explore the usecase of Uplink heavy traffic scenario s. Then\, describe the approach taken in srsRAN Project to meet the needs of these scenarios and finally showcase its working in a demo DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:srsRAN Project - Application in UL heavy traffic scenarios - Supree th Herle URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/HZVJQK/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-BUWUKG@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T113000 DTEND;TZID=CET:20240504T120000 DESCRIPTION:This talk should maybe be titled "How (NOT) to write a Kamailio Config" :-) DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:My Kamailio Config - Keith Whyte URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/BUWUKG/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-W9X8XH@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T120000 DTEND;TZID=CET:20240504T123000 DESCRIPTION:Everyone knows that OTA (over the air) access to SIM cards exis ts for decades\, and that somehow authenticated APDUs can be sent via SMS. \n\nBut let's look at the OTA architecture in more detail:\n* OTA transpor t (SCP80) over SMS\, USSD\, CellBroadcast\, CAT-TP\, BIP\n* The *new* SCP8 1 transport (HTTPS via TLS-PSK)\n* how to address individal applications o n the card via their TAR\n * common applications like RFM and RAM\n * cu stom applications on the card\n* OTA in the world of eUICCs\n * talking t o the ECASD\n * talking to the ISD-R\n * talking to the ISD-P/MNO-SD or applications therein DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Detailed workings of OTA for SIM/USIM/eUICC - Harald Welte (sysmoco m) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/W9X8XH/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-TRWXYF@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T123000 DTEND;TZID=CET:20240504T130000 DESCRIPTION:During 2022\, sysmocom was tasked by IoT operator Onomondo to d evelop a software implementation of a rather fully-featured 3GPP USIM (and ETSI UICC). The idea of this project is that one would run it inside an existing trusted execution environment / secure element of an IoT device\, removing the need for a physical chip or slot.\n\nAfter some grace period \, this project was released as open source software in 2024. Let's have a look on what it can do and how it can be used. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:onomondo softsim: A software USIM implementation - Philipp Maier URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/TRWXYF/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-AVNHFM@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T130000 DTEND;TZID=CET:20240504T143000 DESCRIPTION:Lunch DTSTAMP:20260410T173432Z LOCATION:Restaurant SUMMARY:Lunch (Sat) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/AVNHFM/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-3SYDHF@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T143000 DTEND;TZID=CET:20240504T150000 DESCRIPTION:Brief talk about the lower layers of osmo-trx-ms\, the mobile-s tation side GSM transceiver DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Lower Layer of osmo-trx-ms - Eric Wild URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/3SYDHF/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-Q3XYVC@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T151000 DTEND;TZID=CET:20240504T154000 DESCRIPTION:We all know the inherent problems of GSMTAP (v2) as we know it. Can we finally tackle the much desired successor GSMTAPv3 in 2024? DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:GSMTAPv3 - The long-awaited successor - Shinjo Park URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/Q3XYVC/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-DQRNVM@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T154000 DTEND;TZID=CET:20240504T161000 DESCRIPTION:JESD204B is a pretty common interface to higher speed ADC/DAC u sed in software defined radio.\nI'd like to take a moment to explain how i t works and how to use the open-hardware LiteJESD204B core to interface to them. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:JESD204B : Interfacing to modern ADC/DAC with LiteX - Sylvain Munau t URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/DQRNVM/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-F7CZPM@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T161000 DTEND;TZID=CET:20240504T163000 DESCRIPTION:There are several USB oscilloscopes based on the Cypress FX2 + AD9288 (e.g. Hantek 6022BE). So far\, most of them were supported by the o pen source sigrok project\, but not for continuous acquisition of samples. This talk will show how those devices can be used to digitize SDR IF sign als\, and for projects like vhsdecode.\n\nFor more information\, see:\nhtt ps://github.com/steve-m/fx2adc DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:fx2adc: Using USB oscilloscopes as general purpose ADC - Steve Mark graf URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/F7CZPM/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-9AXFSV@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T170000 DTEND;TZID=CET:20240504T174500 DESCRIPTION:This is a session in which we will try to summarize some of the experience we've gained with using open5gs over the last few years.\n\nT he idea is to sched some light on what we believe could be improved from t he user point of view. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:open5gs - feedback from user point of view - Pau Espin Pedrol\, Oli ver Smith\, Alexander Couzens URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/9AXFSV/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-TUFJPD@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T174500 DTEND;TZID=CET:20240504T181500 DESCRIPTION:Just a few words about the Sky130 Open PDK and associated tooli ng as well as the related TinyTapeout program DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Sky130 and TinyTapeout : A quick intro - Sylvain Munaut URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/TUFJPD/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-QRBB9Y@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T181500 DTEND;TZID=CET:20240504T184500 DESCRIPTION:Often I get a 3GPP related network trace (pcap)\, and have to m anually gather leads to find out what exactly is going on in it. I have tr ied different ways to automate the analysis part\, and will share what I e nded up with. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:my hobby dabbles at examining network traces - Neels Hofmeyr URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/QRBB9Y/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-ZYTJMD@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T184500 DTEND;TZID=CET:20240504T191500 DESCRIPTION:Let's talk about our code review culture.\nAre there pitfalls o r frustrations and can we resolve them? DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:code review review - Neels Hofmeyr URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/ZYTJMD/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-J888MC@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T191500 DTEND;TZID=CET:20240504T200000 DESCRIPTION:In the eSIM universe\, *eSIM profiles* are the virtualised cont ent of a classic USIM (possibly with ISIM\, CSIM\, applets\, etc.).\n\nLet 's have a look what an eSIM profile is:\n* how is the data structured / or ganized?\n* what data can be represented in it?\n* how to handle features provided by eUICC\, how can the eSIM profile mandate some of them?\n* how does personalization of eSIM profiles work?\n\nThere will be some hands-on navigation through profiles\, based on the `pySim.esim.saip` module. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Anatomy of the eSIM profile - Harald Welte (sysmocom) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/J888MC/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-UYD9ZZ@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T200000 DTEND;TZID=CET:20240504T213000 DESCRIPTION:Dinner DTSTAMP:20260410T173432Z LOCATION:Restaurant SUMMARY:Dinner (Sat) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/UYD9ZZ/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-MTFNZZ@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T213000 DTEND;TZID=CET:20240504T214500 DESCRIPTION:The demos that should originally have been part of the "GlobalP latform in USIM/eUICC" talk DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:GlobalPlatform demo - Harald Welte (sysmocom) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/MTFNZZ/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-3CLHAR@pretalx.sysmocom.de DTSTART;TZID=CET:20240504T214500 DTEND;TZID=CET:20240505T000000 DESCRIPTION:Chat + Hack + Drink DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Unstructured Supplementary Social Event (USSE) Saturday - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/3CLHAR/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-Q3CQPP@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T100000 DTEND;TZID=CET:20240505T101500 DESCRIPTION:Daily Schedule Planning/Update DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Schedule Planning/Update (Sun) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/Q3CQPP/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-YJWERZ@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T101500 DTEND;TZID=CET:20240505T110000 DESCRIPTION:After working on it on and off during 2023\, we finally have a working ePDG in the Osmocom universe. Let's have a look at its internal architecture\, how it integrates with other network elements and have a lo ok at a demo and protocol traces. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:osmo-epdg: The osmocom ePDG for VoWiFi - Pau Espin Pedrol\, Alexand er Couzens URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/YJWERZ/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-RBXC3V@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T110000 DTEND;TZID=CET:20240505T114500 DESCRIPTION:This talk provides a generic introduction to a set of modern Li nux kernel technologies:\n\n* [eBPF](https://ebpf.io/what-is-ebpf/) (exten ded Berkeley Packet Filter) is a kind of virtual machine that runs sandbox ed programs inside the Linux kernel.\n* [XDP](https://docs.cilium.io/en/la test/bpf/progtypes/#xdp) (eXpress Data Path) is a framework for eBPF that enables high-performance programmable packet processing in the Linux kerne l\n* [AF_XDP](https://www.kernel.org/doc/html/next/networking/af_xdp.html) is an *address family* that is optimized for high-performance packet proc essing. It allows in-kernel XDP eBPF programs to efficiently pass packets to userspace via memory-mapped ring buffers.\n\nThe talk will provide a hi gh-level overview. It should provide some basics before the other/later ta lks on bpftrace and eUPF. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Introduction to XDP\, eBPF and AF_XDP - Harald Welte (sysmocom) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/RBXC3V/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-SGKKAA@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T114500 DTEND;TZID=CET:20240505T123000 DESCRIPTION:[bpftrace](https://github.com/bpftrace/bpftrace) is a utility t hat uses the Linux kernel tracing infrastructure (and eBPF) in order to pr ovide tracing capabilities within the kernel\, like uprobe\, kprobe\, trac epoints\, etc. \n\nbpftrace can help us to analyze the performance of [un modified] Osmocom programs and quickly provide information like\, for exam ple:\n* Histogram of time spent in a specific system call\n* Histogram of any argument or return value of any system call DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Using bpftrace to analyze osmocom performance - Harald Welte (sysmo com) URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/SGKKAA/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-UBCQFC@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T123000 DTEND;TZID=CET:20240505T130000 DESCRIPTION:Through a reverse-engineering effort it is possible to (ab)use a combination of cheap USB 3.2 HDMI video grabbers based on the Macrosilic on MS2130 in combination with small FPGA dev boards like the Sipeed Tang n ano series (both ~10 USD each) to capture arbitrary data by connecting the m via an HDMI cable. This can be used as a low cost\, high speed logic ana lyzer\, ADC capture\, DIY SDR etc. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Low cost\, high speed data acquisition over HDMI - Steve Markgraf URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/UBCQFC/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-R3Y7BP@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T130000 DTEND;TZID=CET:20240505T143000 DESCRIPTION:Lunch DTSTAMP:20260410T173432Z LOCATION:Restaurant SUMMARY:Lunch (Sun) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/R3Y7BP/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-7YNMYH@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T143000 DTEND;TZID=CET:20240505T151500 DESCRIPTION:An overview of how OsmoGGSN\, libgtpnl and kernel GTP-U works ( now with IPv6)\, and the new QEMU tests in libgtpnl. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:A tale of OsmoGGSN\, libgtpnl\, kernel GTP-U and IPv6 - Oliver Smit h URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/7YNMYH/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-SWEM3V@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T151500 DTEND;TZID=CET:20240505T154500 DESCRIPTION:[eUPF](https://github.com/edgecomllc/eupf) is a rather new impl ementation of a 3GPP User Plane Function. It is implemented in go and uses eBPF and AF_XDP in order to perform all the GTP-U handling inside the Lin ux kernel.\n\nThis talk is about the first impression from setting it up ( in combination with open5gs) DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:First impression of eUPF - Neels Hofmeyr URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/SWEM3V/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-7NM7VL@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T154500 DTEND;TZID=CET:20240505T161500 DESCRIPTION:Small update on our iridium research. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:iridium update - Sec URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/7NM7VL/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-PJRSFA@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T170000 DTEND;TZID=CET:20240505T190000 DESCRIPTION:In the spirit of "real world" performance testing\, Let's take a look at how **CSFB** from LTE to 2G (or 3G if someone wants to do that a s well) is performing with some example phones\, using the osmocom 2G/3G s tack and open5gs.\n\n*In my experience\, this is not working with sufficie nt reliability. Let try to improve some of this.* DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:CSFB in practice - Keith Whyte URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/PJRSFA/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-BBZBGM@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T190000 DTEND;TZID=CET:20240505T200000 DESCRIPTION:We at Rhizomatica are running the High-frequency Emergency and Rural Multimedia Exchange System (HERMES) already for some years\, based o n P2P connections in a star topology\, using UUCP. Now it is time to move forward. This workshop is focused on the next generation HERMES network st ack\, which hopefully will allow for worldwide deployment of the network. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Digital Telecommunication in HF band - WWWAN - World-Wide Wireless Area Network - Rafael Diniz\, Keith Whyte URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/BBZBGM/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-UAYZ7U@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T200000 DTEND;TZID=CET:20240505T213000 DESCRIPTION:Dinner DTSTAMP:20260410T173432Z LOCATION:Restaurant SUMMARY:Dinner (Sun) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/UAYZ7U/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-HKRW7L@pretalx.sysmocom.de DTSTART;TZID=CET:20240505T213000 DTEND;TZID=CET:20240506T000000 DESCRIPTION:Chat + Hack + Drink DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Unstructured Supplementary Social Event (USSE) Sunday - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/HKRW7L/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-VTAUQK@pretalx.sysmocom.de DTSTART;TZID=CET:20240506T100000 DTEND;TZID=CET:20240506T101500 DESCRIPTION:Daily Schedule Planning/Update DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Session Planning/Update (Mon) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/VTAUQK/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-DUR7GS@pretalx.sysmocom.de DTSTART;TZID=CET:20240506T101500 DTEND;TZID=CET:20240506T110000 DESCRIPTION:Everybody can quickly talk about / present their favorite tooli ng and other tips and tricks that make a good development workflow for wor king on Osmocom related software. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:Your favorite Osmocom related productivity tips and tools - Oliver Smith URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/DUR7GS/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-MU8HSC@pretalx.sysmocom.de DTSTART;TZID=CET:20240506T110000 DTEND;TZID=CET:20240506T113000 DESCRIPTION:Let's do a quick demo on what we can show in terms of the relat ively now CSD (circuit switched data) support in osmocom CNI using some [a ncient and new] GSM modems as well as GSM fax machines.\n\nWith some luck we might also have GSM <-> ISDN interworking for V.110 at the time of the talk. DTSTAMP:20260410T173432Z LOCATION:Meeting Room SUMMARY:GSM FAX and CSD Demo - Harald Welte (sysmocom)\, Vadim Yanitskiy URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/MU8HSC/ END:VEVENT BEGIN:VEVENT UID:pretalx-osmodevcon2024-GSNMTD@pretalx.sysmocom.de DTSTART;TZID=CET:20240506T123000 DTEND;TZID=CET:20240506T140000 DESCRIPTION:Lunch DTSTAMP:20260410T173432Z LOCATION:Restaurant SUMMARY:Lunch (Mon) - URL:https://pretalx.sysmocom.de/osmodevcon2024/talk/GSNMTD/ END:VEVENT END:VCALENDAR