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strongswan-epdg
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The strongswan IPsec implementation with plugins/modifications to enable its use as ePDG for VoWiFi in the 3GPP EPC (Evolved Packet Core) https://osmocom.org/projects/osmo-epdg/wiki
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Oliver Smith c50b88d442 debian/rules: hardcode systemdsystemunitdir 
Without this patch, the build fails for debian unstable and ubuntu
24.04:

Debian 12 and 11:
  checking for systemd system unit directory... /lib/systemd/system

Debian unstable:
  checking for systemd system unit directory... configure: error: not found (try --with-systemdsystemunitdir)
  => aborts in configure

Ubuntu 24.04:
  systemd system unit directory... /usr/lib/systemd/system
  => fails later on because /lib/systemd/system is hardcoded in
     strongswan-starter.links:
  dh_install: warning: Cannot find (any matches for) "lib/systemd/system/strongswan-starter.service" (tried in ., debian/tmp)

Set the dir to /lib/systemd/system so the build passes. Since /lib is a
symlink to /usr/lib, both work the same.
 		2024-07-18 09:51:07 +02:00
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debian debian/rules: hardcode systemdsystemunitdir 2024-07-18 09:51:07 +02:00
doc/standards doc: Remove obsolete architecture description and empty known bugs list 2014-06-30 13:16:17 +02:00
fuzz fuzz: Add fuzzer for identification_t 2019-09-30 10:10:43 +02:00
init init: Remove obsolete StandardOutput setting from legacy systemd unit 2020-09-30 12:51:08 +02:00
m4 configure: Add an option to enable all optional features/plugins 2014-03-20 15:29:27 +01:00
man man: Correct typo in description of closeaction 2019-10-29 10:50:49 +01:00
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Android.common.mk.in android: Added function to include source files from plugin subdirectories 2013-07-08 18:49:25 +02:00
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README.md

strongSwan osmo-epdg component

This repository contains a modified version of the strongswan code base to use it together with osmo-epdg in order to operate a 3GPP ePDG (evolved Packet Data Gateway), for example to provide VoWiFi services.

[UE] <-> [strongswan] <-> [osmo-ePDG] <> [HSS]
                                      <> [PGW]

example configuration

See ./osmo-epdg for a full example configuration (both UE and ePDG).

The ePDG must use the address 192.168.0.2

how to build

apt install libosmocore-dev

./autogen.sh
./configure \
	--enable-eap-aka \
	--enable-eap-aka-3gpp \
	--enable-eap-aka-3gpp2 \
	--enable-eap-simaka-reauth \
	--enable-systemd \
	--enable-save-keys \
	--enable-p-cscf \
	--enable-osmo-epdg

Funding

This project received funding through the User-operated Internet Fund, a fund established by NLnet. Learn more at the NLnet project page.

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