Change in osmo-smlc[master]: initial skeleton

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laforge gerrit-no-reply at lists.osmocom.org
Fri Aug 21 18:10:00 UTC 2020


laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-smlc/+/19779 )


Change subject: initial skeleton
......................................................................

initial skeleton

Change-Id: I706aa9e11a646aad71bb310fa552d0bdb5084d4b
---
A .gitignore
A AUTHORS
A COPYING
A Makefile.am
A README
A configure.ac
A contrib/Makefile.am
A contrib/jenkins.sh
A contrib/osmo-smlc.spec.in
A contrib/systemd/Makefile.am
A contrib/systemd/osmo-smlc.service
A debian/changelog
A debian/compat
A debian/control
A debian/copyright
A debian/osmo-smlc-doc.install
A debian/osmo-smlc.install
A debian/rules
A debian/source/format
A doc/Makefile.am
A doc/examples/Makefile.am
A doc/examples/osmo-smlc/osmo-smlc.cfg
A doc/manuals/Makefile.am
A doc/manuals/chapters/overview.adoc
A doc/manuals/chapters/running.adoc
A doc/manuals/osmosmlc-usermanual-docinfo.xml
A doc/manuals/osmosmlc-usermanual.adoc
A doc/manuals/osmosmlc-vty-reference.xml
A doc/manuals/regen_doc.sh
A doc/manuals/vty/smlc_vty_dditions.xml
A git-version-gen
A include/Makefile.am
A include/osmocom/Makefile.am
A include/osmocom/smlc/Makefile.am
A include/osmocom/smlc/smlc_data.h
A include/osmocom/smlc/smlc_sigtran.h
A osmoappdesc.py
A src/Makefile.am
A src/osmo-smlc/Makefile.am
A src/osmo-smlc/smlc_ctrl.c
A src/osmo-smlc/smlc_main.c
A src/osmo-smlc/smlc_sigtran.c
A tests/Makefile.am
A tests/atlocal.in
A tests/test_nodes.vty
A tests/testsuite.at
46 files changed, 2,388 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-smlc refs/changes/79/19779/1

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ba72477
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,74 @@
+debian/*.log
+*.o
+*.lo
+*.a
+.deps
+Makefile
+Makefile.in
+config.h
+config.h.in
+*.pc
+
+*.*~
+*.sw?
+.libs
+*.pyc
+*.gcda
+*.gcno
+
+**/TAGS
+
+#configure
+aclocal.m4
+autom4te.cache/
+config.log
+config.status
+config.guess
+config.sub
+configure
+compile
+depcomp
+install-sh
+missing
+stamp-h1
+libtool
+ltmain.sh
+m4/*.m4
+
+# git-version-gen magic
+.tarball-version
+.version
+osmo-smlc-*.tar.bz2
+osmo-smlc-*.tar.gz
+
+# apps and app data
+src/osmo-smlc/osmo-smlc
+src/osmo-smlc/*.cfg*
+
+tags
+/deps
+
+#tests
+tests/testsuite.dir
+tests/*/*_test
+
+tests/atconfig
+tests/atlocal
+tests/package.m4
+tests/testsuite
+tests/testsuite.log
+
+writtenconfig/
+
+# manuals
+doc/manuals/*.html
+doc/manuals/*.svg
+doc/manuals/*.pdf
+doc/manuals/*__*.png
+doc/manuals/*.check
+doc/manuals/generated/
+doc/manuals/osmomsc-usermanual.xml
+doc/manuals/common
+doc/manuals/build
+
+contrib/osmo-smlc.spec
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..07ec7d0
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,2 @@
+Harald Welte <laforge at osmocom.org>
+Neels Hofmeyr <nhofmeyr at sysmocom.de>
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..dba13ed
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,661 @@
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+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..3861d29
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,36 @@
+AUTOMAKE_OPTIONS = foreign dist-bzip2 1.6
+
+## FIXME: automake >= 1.13 or autoconf >= 2.70 provide better suited AC_CONFIG_MACRO_DIRS for configure.ac
+## remove line below when OE toolchain is updated to version which include those
+ACLOCAL_AMFLAGS = -I m4
+AM_CPPFLAGS = \
+	$(all_includes) \
+	-I$(top_srcdir)/include \
+	$(NULL)
+
+SUBDIRS = \
+	include \
+	src \
+	tests \
+	doc \
+	contrib \
+	$(NULL)
+
+BUILT_SOURCES = $(top_srcdir)/.version
+EXTRA_DIST = \
+	     .version \
+	     contrib/osmo-smlc.spec.in \
+	     debian \
+	     git-version-gen \
+	     osmoappdesc.py \
+	     $(NULL)
+
+AM_DISTCHECK_CONFIGURE_FLAGS = \
+	--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir)
+
+ at RELMAKE@
+
+$(top_srcdir)/.version:
+	echo $(VERSION) > $@-t && mv $@-t $@
+dist-hook:
+	echo $(VERSION) > $(distdir)/.tarball-version
diff --git a/README b/README
new file mode 100644
index 0000000..06fa1ea
--- /dev/null
+++ b/README
@@ -0,0 +1,4 @@
+About OsmoSMLC
+==============
+
+FIXME
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..e9c4ffc
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,221 @@
+dnl Process this file with autoconf to produce a configure script
+AC_INIT([osmo-smlc],
+	m4_esyscmd([./git-version-gen .tarball-version]),
+	[openbsc at lists.osmocom.org])
+
+dnl *This* is the root dir, even if an install-sh exists in ../ or ../../
+AC_CONFIG_AUX_DIR([.])
+
+AM_INIT_AUTOMAKE([dist-bzip2])
+AC_CONFIG_TESTDIR(tests)
+
+dnl kernel style compile messages
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+dnl include release helper
+RELMAKE='-include osmo-release.mk'
+AC_SUBST([RELMAKE])
+
+dnl checks for programs
+AC_PROG_MAKE_SET
+AC_PROG_CC
+AC_PROG_INSTALL
+LT_INIT
+
+dnl patching ${archive_cmds} to affect generation of file "libtool" to fix linking with clang
+AS_CASE(["$LD"],[*clang*],
+  [AS_CASE(["${host_os}"],
+     [*linux*],[archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'])])
+
+dnl check for pkg-config (explained in detail in libosmocore/configure.ac)
+AC_PATH_PROG(PKG_CONFIG_INSTALLED, pkg-config, no)
+if test "x$PKG_CONFIG_INSTALLED" = "xno"; then
+        AC_MSG_WARN([You need to install pkg-config])
+fi
+PKG_PROG_PKG_CONFIG([0.20])
+
+dnl check for AX_CHECK_COMPILE_FLAG
+m4_ifdef([AX_CHECK_COMPILE_FLAG], [], [
+	AC_MSG_ERROR([Please install autoconf-archive; re-run 'autoreconf -fi' for it to take effect.])
+	])
+
+PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 1.3.0)
+PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 1.3.0)
+PKG_CHECK_MODULES(LIBOSMOCTRL, libosmoctrl >= 1.3.0)
+PKG_CHECK_MODULES(LIBOSMOGSM, libosmogsm >= 1.3.0)
+PKG_CHECK_MODULES(LIBOSMOSIGTRAN, libosmo-sigtran >= 0.10.0)
+PKG_CHECK_MODULES(LIBOSMOSCCP, libosmo-sccp >= 0.10.0)
+
+dnl checks for header files
+AC_HEADER_STDC
+
+dnl Checks for typedefs, structures and compiler characteristics
+
+AC_ARG_ENABLE(sanitize,
+	[AS_HELP_STRING(
+		[--enable-sanitize],
+		[Compile with address sanitizer enabled],
+	)],
+	[sanitize=$enableval], [sanitize="no"])
+if test x"$sanitize" = x"yes"
+then
+	CFLAGS="$CFLAGS -fsanitize=address -fsanitize=undefined"
+	CPPFLAGS="$CPPFLAGS -fsanitize=address -fsanitize=undefined"
+fi
+
+AC_ARG_ENABLE(werror,
+	[AS_HELP_STRING(
+		[--enable-werror],
+		[Turn all compiler warnings into errors, with exceptions:
+		 a) deprecation (allow upstream to mark deprecation without breaking builds);
+		 b) "#warning" pragmas (allow to remind ourselves of errors without breaking builds)
+		]
+	)],
+	[werror=$enableval], [werror="no"])
+if test x"$werror" = x"yes"
+then
+	WERROR_FLAGS="-Werror"
+	WERROR_FLAGS+=" -Wno-error=deprecated -Wno-error=deprecated-declarations"
+	WERROR_FLAGS+=" -Wno-error=cpp" # "#warning"
+	CFLAGS="$CFLAGS $WERROR_FLAGS"
+	CPPFLAGS="$CPPFLAGS $WERROR_FLAGS"
+fi
+
+# The following test is taken from WebKit's webkit.m4
+saved_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -fvisibility=hidden "
+AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
+      [ AC_MSG_RESULT([yes])
+        SYMBOL_VISIBILITY="-fvisibility=hidden"],
+        AC_MSG_RESULT([no]))
+CFLAGS="$saved_CFLAGS"
+AC_SUBST(SYMBOL_VISIBILITY)
+
+AX_CHECK_COMPILE_FLAG([-Werror=implicit], [CFLAGS="$CFLAGS -Werror=implicit"])
+AX_CHECK_COMPILE_FLAG([-Werror=maybe-uninitialized], [CFLAGS="$CFLAGS -Werror=maybe-uninitialized"])
+AX_CHECK_COMPILE_FLAG([-Werror=memset-transposed-args], [CFLAGS="$CFLAGS -Werror=memset-transposed-args"])
+AX_CHECK_COMPILE_FLAG([-Wnull-dereference], [CFLAGS="$CFLAGS -Wnull-dereference"])
+AX_CHECK_COMPILE_FLAG([-Werror=sizeof-array-argument], [CFLAGS="$CFLAGS -Werror=sizeof-array-argument"])
+AX_CHECK_COMPILE_FLAG([-Werror=sizeof-pointer-memaccess], [CFLAGS="$CFLAGS -Werror=sizeof-pointer-memaccess"])
+
+# Coverage build taken from WebKit's configure.in
+AC_MSG_CHECKING([whether to enable code coverage support])
+AC_ARG_ENABLE(coverage,
+              AC_HELP_STRING([--enable-coverage],
+                             [enable code coverage support [default=no]]),
+              [],[enable_coverage="no"])
+AC_MSG_RESULT([$enable_coverage])
+if test "$enable_coverage" = "yes"; then
+   COVERAGE_CFLAGS="-ftest-coverage -fprofile-arcs"
+   COVERAGE_LDFLAGS="-ftest-coverage -fprofile-arcs"
+   AC_SUBST([COVERAGE_CFLAGS])
+   AC_SUBST([COVERAGE_LDFLAGS])
+fi
+
+AC_ARG_ENABLE(profile,
+		[AS_HELP_STRING([--enable-profile], [Compile with profiling support enabled], )],
+		[profile=$enableval], [profile="no"])
+if test x"$profile" = x"yes"
+then
+	CFLAGS="$CFLAGS -pg"
+	CPPFLAGS="$CPPFLAGS -pg"
+fi
+
+AC_ARG_ENABLE([external_tests],
+		AC_HELP_STRING([--enable-external-tests],
+				[Include the VTY/CTRL tests in make check [default=no]]),
+		[enable_ext_tests="$enableval"],[enable_ext_tests="no"])
+if test "x$enable_ext_tests" = "xyes" ; then
+	AC_CHECK_PROG(PYTHON2_AVAIL,python2,yes)
+	 if test "x$PYTHON2_AVAIL" != "xyes" ; then
+		AC_MSG_ERROR([Please install python2 to run the VTY/CTRL tests.])
+	fi
+	AC_CHECK_PROG(OSMOTESTEXT_CHECK,osmotestvty.py,yes)
+	 if test "x$OSMOTESTEXT_CHECK" != "xyes" ; then
+		AC_MSG_ERROR([Please install git://osmocom.org/python/osmo-python-tests to run the VTY/CTRL tests.])
+	fi
+fi
+AC_MSG_CHECKING([whether to enable VTY/CTRL tests])
+AC_MSG_RESULT([$enable_ext_tests])
+AM_CONDITIONAL(ENABLE_EXT_TESTS, test "x$enable_ext_tests" = "xyes")
+
+# Generate manuals
+AC_ARG_ENABLE(manuals,
+	[AS_HELP_STRING(
+		[--enable-manuals],
+		[Generate manual PDFs [default=no]],
+	)],
+	[osmo_ac_build_manuals=$enableval], [osmo_ac_build_manuals="no"])
+AM_CONDITIONAL([BUILD_MANUALS], [test x"$osmo_ac_build_manuals" = x"yes"])
+AC_ARG_VAR(OSMO_GSM_MANUALS_DIR, [path to common osmo-gsm-manuals files, overriding pkg-config and "../osmo-gsm-manuals"
+	fallback])
+if test x"$osmo_ac_build_manuals" = x"yes"
+then
+	# Find OSMO_GSM_MANUALS_DIR (env, pkg-conf, fallback)
+	if test -n "$OSMO_GSM_MANUALS_DIR"; then
+		echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (from env)"
+	else
+		OSMO_GSM_MANUALS_DIR="$($PKG_CONFIG osmo-gsm-manuals --variable=osmogsmmanualsdir 2>/dev/null)"
+		if test -n "$OSMO_GSM_MANUALS_DIR"; then
+			echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (from pkg-conf)"
+		else
+			OSMO_GSM_MANUALS_DIR="../osmo-gsm-manuals"
+			echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (fallback)"
+		fi
+	fi
+	if ! test -d "$OSMO_GSM_MANUALS_DIR"; then
+		AC_MSG_ERROR("OSMO_GSM_MANUALS_DIR does not exist! Install osmo-gsm-manuals or set OSMO_GSM_MANUALS_DIR.")
+	fi
+
+	# Find and run check-depends
+	CHECK_DEPENDS="$OSMO_GSM_MANUALS_DIR/check-depends.sh"
+	if ! test -x "$CHECK_DEPENDS"; then
+		CHECK_DEPENDS="osmo-gsm-manuals-check-depends"
+	fi
+	if ! $CHECK_DEPENDS; then
+		AC_MSG_ERROR("missing dependencies for --enable-manuals")
+	fi
+
+	# Put in Makefile with absolute path
+	OSMO_GSM_MANUALS_DIR="$(realpath "$OSMO_GSM_MANUALS_DIR")"
+	AC_SUBST([OSMO_GSM_MANUALS_DIR])
+fi
+
+# https://www.freedesktop.org/software/systemd/man/daemon.html
+AC_ARG_WITH([systemdsystemunitdir],
+     [AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files])],,
+     [with_systemdsystemunitdir=auto])
+AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"], [
+     def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
+
+     AS_IF([test "x$def_systemdsystemunitdir" = "x"],
+   [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
+    [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
+    with_systemdsystemunitdir=no],
+   [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
+AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
+      [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
+AM_CONDITIONAL([HAVE_SYSTEMD], [test "x$with_systemdsystemunitdir" != "xno"])
+
+AC_MSG_RESULT([CFLAGS="$CFLAGS"])
+AC_MSG_RESULT([CPPFLAGS="$CPPFLAGS"])
+
+dnl Generate the output
+AM_CONFIG_HEADER(config.h)
+
+AC_OUTPUT(
+    include/Makefile
+    include/osmocom/Makefile
+    include/osmocom/smlc/Makefile
+    src/Makefile
+    src/osmo-smlc/Makefile
+    tests/Makefile
+    tests/atlocal
+    doc/Makefile
+    doc/examples/Makefile
+    doc/manuals/Makefile
+    contrib/Makefile
+    contrib/systemd/Makefile
+    contrib/osmo-smlc.spec
+    Makefile)
diff --git a/contrib/Makefile.am b/contrib/Makefile.am
new file mode 100644
index 0000000..3439c97
--- /dev/null
+++ b/contrib/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = systemd
diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
new file mode 100755
index 0000000..b88d812
--- /dev/null
+++ b/contrib/jenkins.sh
@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+# jenkins build helper script for osmo-smlc.  This is how we build on jenkins.osmocom.org
+#
+# environment variables:
+# * WITH_MANUALS: build manual PDFs if set to "1"
+# * PUBLISH: upload manuals after building if set to "1" (ignored without WITH_MANUALS = "1")
+#
+
+if ! [ -x "$(command -v osmo-build-dep.sh)" ]; then
+	echo "Error: We need to have scripts/osmo-deps.sh from http://git.osmocom.org/osmo-ci/ in PATH !"
+	exit 2
+fi
+
+
+set -ex
+
+base="$PWD"
+deps="$base/deps"
+inst="$deps/install"
+export deps inst
+
+osmo-clean-workspace.sh
+
+mkdir "$deps" || true
+
+osmo-build-dep.sh libosmocore "" '--disable-doxygen --enable-gnutls'
+
+verify_value_string_arrays_are_terminated.py $(find . -name "*.[hc]")
+
+export PKG_CONFIG_PATH="$inst/lib/pkgconfig:$PKG_CONFIG_PATH"
+export LD_LIBRARY_PATH="$inst/lib"
+export PATH="$inst/bin:$PATH"
+
+osmo-build-dep.sh libosmo-netif
+osmo-build-dep.sh libosmo-sccp
+
+# Additional configure options and depends
+CONFIG=""
+if [ "$WITH_MANUALS" = "1" ]; then
+	osmo-build-dep.sh osmo-gsm-manuals
+	CONFIG="--enable-manuals"
+fi
+
+set +x
+echo
+echo
+echo
+echo " =============================== osmo-smlc ==============================="
+echo
+set -x
+
+cd "$base"
+autoreconf --install --force
+./configure --enable-sanitize --enable-external-tests --enable-werror $CONFIG
+$MAKE $PARALLEL_MAKE
+LD_LIBRARY_PATH="$inst/lib" $MAKE check \
+  || cat-testlogs.sh
+LD_LIBRARY_PATH="$inst/lib" \
+  DISTCHECK_CONFIGURE_FLAGS="--enable-vty-tests --enable-external-tests --enable-werror $CONFIG" \
+  $MAKE distcheck \
+  || cat-testlogs.sh
+
+if [ "$WITH_MANUALS" = "1" ] && [ "$PUBLISH" = "1" ]; then
+	make -C "$base/doc/manuals" publish
+fi
+
+$MAKE maintainer-clean
+osmo-clean-workspace.sh
diff --git a/contrib/osmo-smlc.spec.in b/contrib/osmo-smlc.spec.in
new file mode 100644
index 0000000..ed2499e
--- /dev/null
+++ b/contrib/osmo-smlc.spec.in
@@ -0,0 +1,88 @@
+#
+# spec file for package osmo-smlc
+#
+# Copyright (c) 2017, Martin Hauke <mardnh at gmx.de>
+#
+# All modifications and additions to the file contributed by third parties
+# remain the property of their copyright owners, unless otherwise agreed
+# upon. The license for this file, and modifications and additions to the
+# file, is the same license as for the pristine package itself (unless the
+# license for the pristine package is not an Open Source License, in which
+# case the license is the MIT License). An "Open Source License" is a
+# license that conforms to the Open Source Definition (Version 1.9)
+# published by the Open Source Initiative.
+
+## Disable LTO for now since it breaks compilation of the tests
+## https://osmocom.org/issues/4113
+%define _lto_cflags %{nil}
+
+Name:           osmo-smlc
+Version:        @VERSION@
+Release:        0
+Summary:        OsmoSMLC: Osmocom's Location Service Center
+License:        AGPL-3.0-or-later
+Group:          Hardware/Mobile
+URL:            https://osmocom.org/projects/osmo-smlc
+Source:         %{name}-%{version}.tar.xz
+BuildRequires:  automake >= 1.9
+BuildRequires:  libtool >= 2
+BuildRequires:  pkgconfig >= 0.20
+%if 0%{?suse_version}
+BuildRequires:  systemd-rpm-macros
+%endif
+BuildRequires:  pkgconfig(libosmo-netif) >= 0.6.0
+BuildRequires:  pkgconfig(libosmo-sccp) >= 0.10.0
+BuildRequires:  pkgconfig(libosmo-sigtran) >= 0.10.0
+BuildRequires:  pkgconfig(libosmocore) >= 1.2.0
+BuildRequires:  pkgconfig(libosmoctrl) >= 1.2.0
+BuildRequires:  pkgconfig(libosmogsm) >= 1.2.0
+BuildRequires:  pkgconfig(libosmovty) >= 1.2.0
+BuildRequires:  pkgconfig(talloc)
+%{?systemd_requires}
+
+%description
+OsmoBSC: Osmocom's Base Station Controller for 2G circuit-switched mobile networks.
+
+%prep
+%setup -q
+
+%build
+echo "%{version}" >.tarball-version
+autoreconf -fi
+%configure \
+  --docdir=%{_docdir}/%{name} \
+  --with-systemdsystemunitdir=%{_unitdir}
+make %{?_smp_mflags}
+
+%install
+%make_install
+
+%if 0%{?suse_version}
+%preun
+%service_del_preun %{name}.service
+
+%postun
+%service_del_postun %{name}.service
+
+%pre
+%service_add_pre %{name}.service
+
+%post
+%service_add_post %{name}.service
+%endif
+
+%check
+make %{?_smp_mflags} check || (find . -name testsuite.log -exec cat {} +)
+
+%files
+%license COPYING
+%doc AUTHORS README
+%{_bindir}/osmo-smlc
+%dir %{_docdir}/%{name}/examples
+%dir %{_docdir}/%{name}/examples/osmo-smlc
+%{_docdir}/%{name}/examples/osmo-smlc/osmo-smlc.cfg
+%dir %{_sysconfdir}/osmocom
+%config(noreplace) %{_sysconfdir}/osmocom/osmo-smlc.cfg
+%{_unitdir}/%{name}.service
+
+%changelog
diff --git a/contrib/systemd/Makefile.am b/contrib/systemd/Makefile.am
new file mode 100644
index 0000000..32cdc71
--- /dev/null
+++ b/contrib/systemd/Makefile.am
@@ -0,0 +1,6 @@
+EXTRA_DIST = osmo-smlc.service
+
+if HAVE_SYSTEMD
+systemdsystemunit_DATA = \
+  osmo-smlc.service
+endif
diff --git a/contrib/systemd/osmo-smlc.service b/contrib/systemd/osmo-smlc.service
new file mode 100644
index 0000000..23a8f86
--- /dev/null
+++ b/contrib/systemd/osmo-smlc.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=Osmocom Serving Mobile Location Center (SMLC)
+
+[Service]
+Type=simple
+Restart=always
+ExecStart=/usr/bin/osmo-smlc -c /etc/osmocom/osmo-smlc.cfg -s
+RestartSec=2
+
+[Install]
+WantedBy=multi-user.target
diff --git a/debian/changelog b/debian/changelog
new file mode 100644
index 0000000..e573404
--- /dev/null
+++ b/debian/changelog
@@ -0,0 +1,6 @@
+osmo-smlc (0.0.1) unstable; urgency=medium
+
+  [ Harald Welte ]
+  * initial skeleton
+
+ -- Harald Welte <laforge at osmocom.org>  Fri, 21 Aug 2020 16:02:11 +0200
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 0000000..ec63514
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+9
diff --git a/debian/control b/debian/control
new file mode 100644
index 0000000..5f15744
--- /dev/null
+++ b/debian/control
@@ -0,0 +1,54 @@
+Source: osmo-smlc
+Section: net
+Priority: extra
+Maintainer: Osmocom team <openbsc at lists.osmocom.org>
+Build-Depends: debhelper (>=9),
+               dh-autoreconf,
+               autotools-dev,
+               autoconf,
+               automake,
+               libtool,
+               pkg-config,
+               libsctp-dev,
+               libtalloc-dev,
+               libosmocore-dev (>= 1.3.0),
+               libosmo-sccp-dev (>= 1.1.0),
+               libosmo-sigtran-dev (>= 1.1.0),
+               osmo-gsm-manuals-dev (>= 0.2.0)
+Standards-Version: 3.9.8
+Vcs-Git: git://git.osmocom.org/osmo-smlc.git
+Vcs-Browser: https://git.osmocom.org/osmo-smlc/
+Homepage: https://osmocom.org/projects/osmo-smlc
+
+Package: osmo-smlc
+Architecture: any
+Multi-Arch: foreign
+Depends: ${misc:Depends}, ${shlibs:Depends}, libdbd-sqlite3
+Description: OsmoSMLC: Osmocom's Location Services Center
+  FIXME
+  .
+  This Osmocom implementation of the SMLC handles Lb interfaces via 3GPP
+  Lb in an M3UA ASP role.
+
+Package: osmo-smlc-dbg
+Section: debug
+Architecture: any
+Multi-Arch: same
+Depends: osmo-smlc (= ${binary:Version}), ${misc:Depends}
+Description: OsmoSMLC: Osmocom's Location Services Center
+  FIXME
+  .
+  This Osmocom implementation of the SMLC handles Lb interfaces via 3GPP
+  Lb in an M3UA ASP role.
+  .
+  This package contains the debug symbols for osmo-smlc in order to
+  generate meaningful backtraces in bug-reports.
+
+Package: osmo-smlc-doc
+Architecture: all
+Section: doc
+Priority: optional
+Depends: ${misc:Depends}
+Description: ${misc:Package} PDF documentation
+ Various manuals: user manual, VTY reference manual and/or
+ protocol/interface manuals.
diff --git a/debian/copyright b/debian/copyright
new file mode 100644
index 0000000..fcdada7
--- /dev/null
+++ b/debian/copyright
@@ -0,0 +1,20 @@
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: osmo-smlc
+Source: git://git.osmocom.org/osmo-smlc
+
+Files:     *
+Copyright: 2020 Harald Welte <laforge at osmocom.org>
+           2020 sysmocom s.f.m.c. GmbH <info at sysmocom.de>
+License:   AGPL-3.0+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+ .
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU Affero General Public License for more details.
+ .
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/debian/osmo-smlc-doc.install b/debian/osmo-smlc-doc.install
new file mode 100644
index 0000000..e3cbcb0
--- /dev/null
+++ b/debian/osmo-smlc-doc.install
@@ -0,0 +1 @@
+usr/share/doc/osmo-smlc-doc/*.pdf
diff --git a/debian/osmo-smlc.install b/debian/osmo-smlc.install
new file mode 100644
index 0000000..8e3223a
--- /dev/null
+++ b/debian/osmo-smlc.install
@@ -0,0 +1,4 @@
+etc/osmocom/osmo-smlc.cfg
+lib/systemd/system/osmo-smlc.service
+usr/bin/osmo-smlc
+usr/share/doc/osmo-msc/examples/osmo-smlc/osmo-smlc.cfg usr/share/doc/osmo-smlc/examples
diff --git a/debian/rules b/debian/rules
new file mode 100755
index 0000000..15f6320
--- /dev/null
+++ b/debian/rules
@@ -0,0 +1,67 @@
+#!/usr/bin/make -f
+# You must remove unused comment lines for the released package.
+# See debhelper(7) (uncomment to enable)
+# This is an autogenerated template for debian/rules.
+#
+# Output every command that modifies files on the build system.
+#export DH_VERBOSE = 1
+#
+# Copy some variable definitions from pkg-info.mk and vendor.mk
+# under /usr/share/dpkg/ to here if they are useful.
+#
+# See FEATURE AREAS/ENVIRONMENT in dpkg-buildflags(1)
+# Apply all hardening options
+#export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+# Package maintainers to append CFLAGS
+#export DEB_CFLAGS_MAINT_APPEND  = -Wall -pedantic
+# Package maintainers to append LDFLAGS
+#export DEB_LDFLAGS_MAINT_APPEND = -Wl,--as-needed
+#
+# With debhelper version 9 or newer, the dh command exports
+# all buildflags.  So there is no need to include the
+# /usr/share/dpkg/buildflags.mk file here if compat is 9 or newer.
+#
+# These are rarely used code. (START)
+#
+# The following include for *.mk magically sets miscellaneous
+# variables while honoring existing values of pertinent
+# environment variables:
+#
+# Architecture-related variables such as DEB_TARGET_MULTIARCH:
+#include /usr/share/dpkg/architecture.mk
+# Vendor-related variables such as DEB_VENDOR:
+#include /usr/share/dpkg/vendor.mk
+# Package-related variables such as DEB_DISTRIBUTION
+#include /usr/share/dpkg/pkg-info.mk
+#
+# You may alternatively set them susing a simple script such as:
+# DEB_VENDOR ?= $(shell dpkg-vendor --query  Vendor)
+#
+# These are rarely used code. (END)
+#
+
+# main packaging script based on dh7 syntax
+%:
+	dh $@ --with autoreconf
+
+# debmake generated override targets
+# Set options for ./configure
+CONFIGURE_FLAGS += --enable-iu --enable-smpp --with-systemdsystemunitdir=/lib/systemd/system --enable-manuals
+override_dh_auto_configure:
+	dh_auto_configure -- $(CONFIGURE_FLAGS)
+#
+# Do not install libtool archive, python .pyc .pyo
+#override_dh_install:
+#	dh_install --list-missing -X.la -X.pyc -X.pyo
+
+# See https://www.debian.org/doc/manuals/developers-reference/best-pkging-practices.html#bpp-dbg
+override_dh_strip:
+	dh_strip --dbg-package=osmo-smlc-dbg
+
+# Print test results in case of a failure
+override_dh_auto_test:
+	dh_auto_test || (find . -name testsuite.log -exec cat {} \; ; false)
+
+# Don't create .pdf.gz files (barely saves space and they can't be opened directly by most pdf readers)
+override_dh_compress:
+	dh_compress -X.pdf
diff --git a/debian/source/format b/debian/source/format
new file mode 100644
index 0000000..89ae9db
--- /dev/null
+++ b/debian/source/format
@@ -0,0 +1 @@
+3.0 (native)
diff --git a/doc/Makefile.am b/doc/Makefile.am
new file mode 100644
index 0000000..2b65598
--- /dev/null
+++ b/doc/Makefile.am
@@ -0,0 +1,20 @@
+SUBDIRS = \
+	examples \
+	manuals \
+	$(NULL)
+
+msc: \
+	$(NULL)
+
+dot: \
+	$(NULL)
+
+$(builddir)/%.png: $(srcdir)/%.msc
+	mscgen -T png -o $@ $<
+
+$(builddir)/%.png: $(srcdir)/%.dot
+	dot -Tpng $< > $@
+
+.PHONY: poll
+poll:
+	while true; do $(MAKE) msc dot; sleep 1; done
diff --git a/doc/examples/Makefile.am b/doc/examples/Makefile.am
new file mode 100644
index 0000000..f4acac8
--- /dev/null
+++ b/doc/examples/Makefile.am
@@ -0,0 +1,30 @@
+OSMOCONF_FILES = \
+	osmo-smlc/osmo-smlc.cfg
+
+osmoconfdir = $(sysconfdir)/osmocom
+osmoconf_DATA = $(OSMOCONF_FILES)
+
+EXTRA_DIST = $(OSMOCONF_FILES)
+
+CFG_FILES = find $(srcdir) -name '*.cfg*' | sed -e 's,^$(srcdir),,'
+
+dist-hook:
+	for f in $$($(CFG_FILES)); do \
+		j="$(distdir)/$$f" && \
+		mkdir -p "$$(dirname $$j)" && \
+		$(INSTALL_DATA) $(srcdir)/$$f $$j; \
+	done
+
+install-data-hook:
+	for f in $$($(CFG_FILES)); do \
+		j="$(DESTDIR)$(docdir)/examples/$$f" && \
+		mkdir -p "$$(dirname $$j)" && \
+		$(INSTALL_DATA) $(srcdir)/$$f $$j; \
+	done
+
+uninstall-hook:
+	@$(PRE_UNINSTALL)
+	for f in $$($(CFG_FILES)); do \
+		j="$(DESTDIR)$(docdir)/examples/$$f" && \
+		$(RM) $$j; \
+	done
diff --git a/doc/examples/osmo-smlc/osmo-smlc.cfg b/doc/examples/osmo-smlc/osmo-smlc.cfg
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/doc/examples/osmo-smlc/osmo-smlc.cfg
diff --git a/doc/manuals/Makefile.am b/doc/manuals/Makefile.am
new file mode 100644
index 0000000..5aa75fe
--- /dev/null
+++ b/doc/manuals/Makefile.am
@@ -0,0 +1,25 @@
+EXTRA_DIST = \
+    osmosmlc-usermanual.adoc \
+    osmosmlc-usermanual-docinfo.xml \
+    osmosmlc-vty-reference.xml \
+    chapters \
+    regen_doc.sh \
+    vty
+
+if BUILD_MANUALS
+  ASCIIDOC = osmosmlc-usermanual.adoc
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.asciidoc.inc
+  osmosmlc-usermanual.pdf: $(srcdir)/chapters/*.adoc $(srcdir)/chapters/*.dot
+
+  VTY_REFERENCE = osmosmlc-vty-reference.xml
+
+  BUILT_REFERENCE_XML = $(builddir)/vty/smlc_vty_reference.xml
+  $(builddir)/vty/smlc_vty_reference.xml: $(top_builddir)/src/osmo-smlc/osmo-smlc
+	mkdir -p $(builddir)/vty
+	$(top_builddir)/src/osmo-smlc/osmo-smlc --vty-ref-xml > $@
+
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.vty-reference.inc
+
+  OSMO_REPOSITORY = osmo-smlc
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.common.inc
+endif
diff --git a/doc/manuals/chapters/overview.adoc b/doc/manuals/chapters/overview.adoc
new file mode 100644
index 0000000..b0132ad
--- /dev/null
+++ b/doc/manuals/chapters/overview.adoc
@@ -0,0 +1,10 @@
+[[overview]]
+== Overview
+
+This manual should help you getting started with OsmoSMLC. It will cover
+aspects of configuring and running the OsmoSMLC.
+
+[[intro_overview]]
+=== About OsmoSMLC
+
+OsmoSMLC is the Osmocom implementation of a Serving Mobile Location Center.
diff --git a/doc/manuals/chapters/running.adoc b/doc/manuals/chapters/running.adoc
new file mode 100644
index 0000000..0a3174e
--- /dev/null
+++ b/doc/manuals/chapters/running.adoc
@@ -0,0 +1,79 @@
+== Running OsmoSMLC
+
+The OsmoSMLC executable (`osmo-smlc`) offers the following command-line
+arguments:
+
+=== SYNOPSIS
+
+*osmo-smlc* [-h|-V] [-d 'DBGMASK'] [-D] [-c 'CONFIGFILE'] [-s] [-T] [-e 'LOGLEVEL'] [-l 'IP'] [-r 'RFCTL']
+
+=== OPTIONS
+
+*-h, --help*::
+	Print a short help message about the supported options
+*-V, --version*::
+	Print the compile-time version number of the program
+*-d, --debug 'DBGMASK','DBGLEVELS'*::
+	Set the log subsystems and levels for logging to stderr. This
+	has mostly been superseded by VTY-based logging configuration,
+	see <<logging>> for further information.
+*-D, --daemonize*::
+	Fork the process as a daemon into background.
+*-c, --config-file 'CONFIGFILE'*::
+	Specify the file and path name of the configuration file to be
+	used. If none is specified, use `osmo-smlc.cfg` in the current
+	working directory.
+*-e, --log-level 'LOGLEVEL'*::
+	Set the global log level for logging to stderr. This has mostly
+	been deprecated by VTY based logging configuration, see
+	<<logging>> for more information.
+
+=== Multiple instances
+
+Running multiple instances of `osmo-smlc` on the same host is possible if all
+interfaces (VTY, CTRL) are separated using the appropriate configuration
+options. The IP based interfaces are binding to local host by default. In order
+to separate the processes, the user has to bind those services to specific but
+different IP addresses and/or ports.
+
+The VTY and the Control interface can be bound to IP addresses from the loopback
+address range, for example:
+
+----
+line vty
+ bind 127.0.0.2
+ctrl
+ bind 127.0.0.2
+----
+
+For the following links, OsmoSMLC acts as a client and does not listen/bind to a
+specific interface, and will hence not encounter conflicts for multiple instances
+running on the same interface:
+
+- The SCCP/M3UA links are established by OsmoSMLC contacting an STP.
+
+To run multiple OsmoSMLC instances on the same network, each SMLC
+has to configure a distinct point-code. See <<cs7_config>>.
+
+
+=== Configure primary links
+
+==== Connect to an STP
+
+===== Configure SCCP/M3UA (AoIP)
+
+OsmoSMLC acts as client to contact an STP instance and establish an SCCP/M3UA
+link.
+
+An example configuration of OsmoSMLC's Lb SCCP link, assuming the SMLC at
+point-code 1.23.6 via an SG listening for M3UA at 127.0.0.1:2905:
+
+----
+cs7 instance 0
+ point-code 1.23.6
+ asp asp-clnt-msc-0 2905 0 m3ua
+  remote-ip 127.0.0.1
+  sctp-role client
+----
+
+This configuration is explained in detail in <<cs7_config>>.
diff --git a/doc/manuals/osmosmlc-usermanual-docinfo.xml b/doc/manuals/osmosmlc-usermanual-docinfo.xml
new file mode 100644
index 0000000..b39d11b
--- /dev/null
+++ b/doc/manuals/osmosmlc-usermanual-docinfo.xml
@@ -0,0 +1,63 @@
+<revhistory>
+  <revision>
+    <revnumber>1</revnumber>
+    <date>August 2020</date>
+    <authorinitials>HW</authorinitials>
+    <revremark>
+      Initial OsmoSMLC manual
+    </revremark>
+  </revision>
+</revhistory>
+
+<authorgroup>
+  <author>
+    <firstname>Harald</firstname>
+    <surname>Welte</surname>
+    <email>hwelte at sysmocom.de</email>
+    <authorinitials>HW</authorinitials>
+    <affiliation>
+      <shortaffil>sysmocom</shortaffil>
+      <orgname>sysmocom - s.f.m.c. GmbH</orgname>
+      <jobtitle>Managing Director</jobtitle>
+    </affiliation>
+  </author>
+  <author>
+    <firstname>Neels</firstname>
+    <surname>Hofmeyr</surname>
+    <email>nhofmeyr at sysmocom.de</email>
+    <authorinitials>NH</authorinitials>
+    <affiliation>
+      <shortaffil>sysmocom</shortaffil>
+      <orgname>sysmocom - s.f.m.c. GmbH</orgname>
+      <jobtitle>Senior Developer</jobtitle>
+    </affiliation>
+  </author>
+</authorgroup>
+
+<copyright>
+  <year>2012-2020</year>
+  <holder>sysmocom - s.f.m.c. GmbH</holder>
+</copyright>
+
+<legalnotice>
+  <para>
+	Permission is granted to copy, distribute and/or modify this
+	document under the terms of the GNU Free Documentation License,
+	Version 1.3 or any later version published by the Free Software
+	Foundation; with the Invariant Sections being just 'Foreword',
+	'Acknowledgements' and 'Preface', with no Front-Cover Texts,
+	and no Back-Cover Texts.  A copy of the license is included in
+	the section entitled "GNU Free Documentation License".
+  </para>
+  <para>
+	The Asciidoc source code of this manual can be found at
+	<ulink url="http://git.osmocom.org/osmo-gsm-manuals/">
+		http://git.osmocom.org/osmo-gsm-manuals/
+	</ulink>
+	and
+	<ulink url="http://git.osmocom.org/osmo-smlc/">
+		http://git.osmocom.org/osmo-smlc/
+	</ulink>
+
+  </para>
+</legalnotice>
diff --git a/doc/manuals/osmosmlc-usermanual.adoc b/doc/manuals/osmosmlc-usermanual.adoc
new file mode 100644
index 0000000..1717659
--- /dev/null
+++ b/doc/manuals/osmosmlc-usermanual.adoc
@@ -0,0 +1,37 @@
+:gfdl-enabled:
+:program-name: OsmoSMLC
+
+OsmoSMLC User Manual
+====================
+Harald Welte <hwelte at sysmocom.de>
+
+
+include::./common/chapters/preface.adoc[]
+
+include::{srcdir}/chapters/overview.adoc[]
+
+include::{srcdir}/chapters/running.adoc[]
+
+include::./common/chapters/vty.adoc[]
+
+include::./common/chapters/logging.adoc[]
+
+include::./common/chapters/cs7-config.adoc[]
+
+include::./common/chapters/counters-overview.adoc[]
+
+// include::{srcdir}/chapters/counters.adoc[]
+
+include::./common/chapters/control_if.adoc[]
+
+// include::{srcdir}/chapters/control.adoc[]
+
+include::{srcdir}/chapters/osmux_bsc.adoc[]
+
+include::./common/chapters/port_numbers.adoc[]
+
+include::./common/chapters/bibliography.adoc[]
+
+include::./common/chapters/glossary.adoc[]
+
+include::./common/chapters/gfdl.adoc[]
diff --git a/doc/manuals/osmosmlc-vty-reference.xml b/doc/manuals/osmosmlc-vty-reference.xml
new file mode 100644
index 0000000..38085b7
--- /dev/null
+++ b/doc/manuals/osmosmlc-vty-reference.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ex:ts=2:sw=42sts=2:et
+  -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+-->
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML 5.0//EN"
+"http://docbook.org/xml/5.0/dtd/docbook.dtd" [
+<!ENTITY chapter-vty      SYSTEM      "./common/chapters/vty.xml" >
+<!ENTITY sections-vty     SYSTEM      "generated/docbook_vty.xml"  >
+]>
+
+<book>
+  <info>
+    <revhistory>
+        <revision>
+            <revnumber>v1</revnumber>
+            <date>21st August 2020</date>
+            <authorinitials>hw</authorinitials>
+            <revremark>Initial</revremark>
+        </revision>
+    </revhistory>
+
+    <title>OsmoSMLC VTY Reference</title>
+
+    <copyright>
+      <year>2020</year>
+    </copyright>
+
+    <legalnotice>
+      <para>This work is copyright by <orgname>sysmocom - s.f.m.c. GmbH</orgname>. All rights reserved.
+      </para>
+    </legalnotice>
+  </info>
+
+  <!-- Main chapters-->
+  &chapter-vty;
+</book>
+
diff --git a/doc/manuals/regen_doc.sh b/doc/manuals/regen_doc.sh
new file mode 100755
index 0000000..175b17e
--- /dev/null
+++ b/doc/manuals/regen_doc.sh
@@ -0,0 +1,17 @@
+#!/bin/sh -x
+
+if [ -z "$DOCKER_PLAYGROUND" ]; then
+	echo "You need to set DOCKER_PLAYGROUND"
+	exit 1
+fi
+
+SCRIPT=$(realpath "$0")
+MANUAL_DIR=$(dirname "$SCRIPT")
+
+COMMIT=${COMMIT:-$(git log -1 --format=format:%H)}
+
+cd "$DOCKER_PLAYGROUND/scripts" || exit 1
+
+OSMO_SMLC_BRANCH=$COMMIT ./regen_doc.sh osmo-smlc 4271 \
+	"$MANUAL_DIR/chapters/counters_generated.adoc" \
+	"$MANUAL_DIR/vty/smlc_vty_reference.xml"
diff --git a/doc/manuals/vty/smlc_vty_dditions.xml b/doc/manuals/vty/smlc_vty_dditions.xml
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/doc/manuals/vty/smlc_vty_dditions.xml
diff --git a/git-version-gen b/git-version-gen
new file mode 100755
index 0000000..42cf3d2
--- /dev/null
+++ b/git-version-gen
@@ -0,0 +1,151 @@
+#!/bin/sh
+# Print a version string.
+scriptversion=2010-01-28.01
+
+# Copyright (C) 2007-2010 Free Software Foundation, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/.
+# It may be run two ways:
+# - from a git repository in which the "git describe" command below
+#   produces useful output (thus requiring at least one signed tag)
+# - from a non-git-repo directory containing a .tarball-version file, which
+#   presumes this script is invoked like "./git-version-gen .tarball-version".
+
+# In order to use intra-version strings in your project, you will need two
+# separate generated version string files:
+#
+# .tarball-version - present only in a distribution tarball, and not in
+#   a checked-out repository.  Created with contents that were learned at
+#   the last time autoconf was run, and used by git-version-gen.  Must not
+#   be present in either $(srcdir) or $(builddir) for git-version-gen to
+#   give accurate answers during normal development with a checked out tree,
+#   but must be present in a tarball when there is no version control system.
+#   Therefore, it cannot be used in any dependencies.  GNUmakefile has
+#   hooks to force a reconfigure at distribution time to get the value
+#   correct, without penalizing normal development with extra reconfigures.
+#
+# .version - present in a checked-out repository and in a distribution
+#   tarball.  Usable in dependencies, particularly for files that don't
+#   want to depend on config.h but do want to track version changes.
+#   Delete this file prior to any autoconf run where you want to rebuild
+#   files to pick up a version string change; and leave it stale to
+#   minimize rebuild time after unrelated changes to configure sources.
+#
+# It is probably wise to add these two files to .gitignore, so that you
+# don't accidentally commit either generated file.
+#
+# Use the following line in your configure.ac, so that $(VERSION) will
+# automatically be up-to-date each time configure is run (and note that
+# since configure.ac no longer includes a version string, Makefile rules
+# should not depend on configure.ac for version updates).
+#
+# AC_INIT([GNU project],
+#         m4_esyscmd([build-aux/git-version-gen .tarball-version]),
+#         [bug-project at example])
+#
+# Then use the following lines in your Makefile.am, so that .version
+# will be present for dependencies, and so that .tarball-version will
+# exist in distribution tarballs.
+#
+# BUILT_SOURCES = $(top_srcdir)/.version
+# $(top_srcdir)/.version:
+#	echo $(VERSION) > $@-t && mv $@-t $@
+# dist-hook:
+#	echo $(VERSION) > $(distdir)/.tarball-version
+
+case $# in
+    1) ;;
+    *) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version"; exit 1;;
+esac
+
+tarball_version_file=$1
+nl='
+'
+
+# First see if there is a tarball-only version file.
+# then try "git describe", then default.
+if test -f $tarball_version_file
+then
+    v=`cat $tarball_version_file` || exit 1
+    case $v in
+	*$nl*) v= ;; # reject multi-line output
+	[0-9]*) ;;
+	*) v= ;;
+    esac
+    test -z "$v" \
+	&& echo "$0: WARNING: $tarball_version_file seems to be damaged" 1>&2
+fi
+
+if test -n "$v"
+then
+    : # use $v
+elif
+       v=`git describe --abbrev=4 --match='v*' HEAD 2>/dev/null \
+	  || git describe --abbrev=4 HEAD 2>/dev/null` \
+    && case $v in
+	 [0-9]*) ;;
+	 v[0-9]*) ;;
+	 *) (exit 1) ;;
+       esac
+then
+    # Is this a new git that lists number of commits since the last
+    # tag or the previous older version that did not?
+    #   Newer: v6.10-77-g0f8faeb
+    #   Older: v6.10-g0f8faeb
+    case $v in
+	*-*-*) : git describe is okay three part flavor ;;
+	*-*)
+	    : git describe is older two part flavor
+	    # Recreate the number of commits and rewrite such that the
+	    # result is the same as if we were using the newer version
+	    # of git describe.
+	    vtag=`echo "$v" | sed 's/-.*//'`
+	    numcommits=`git rev-list "$vtag"..HEAD | wc -l`
+	    v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
+	    ;;
+    esac
+
+    # Change the first '-' to a '.', so version-comparing tools work properly.
+    # Remove the "g" in git describe's output string, to save a byte.
+    v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
+else
+    v=UNKNOWN
+fi
+
+v=`echo "$v" |sed 's/^v//'`
+
+# Don't declare a version "dirty" merely because a time stamp has changed.
+git status > /dev/null 2>&1
+
+dirty=`sh -c 'git diff-index --name-only HEAD' 2>/dev/null` || dirty=
+case "$dirty" in
+    '') ;;
+    *) # Append the suffix only if there isn't one already.
+	case $v in
+	  *-dirty) ;;
+	  *) v="$v-dirty" ;;
+	esac ;;
+esac
+
+# Omit the trailing newline, so that m4_esyscmd can use the result directly.
+echo "$v" | tr -d '\012'
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/include/Makefile.am b/include/Makefile.am
new file mode 100644
index 0000000..fa499e7
--- /dev/null
+++ b/include/Makefile.am
@@ -0,0 +1,6 @@
+SUBDIRS = \
+	osmocom \
+	$(NULL)
+
+noinst_HEADERS = \
+	$(NULL)
diff --git a/include/osmocom/Makefile.am b/include/osmocom/Makefile.am
new file mode 100644
index 0000000..923cb50
--- /dev/null
+++ b/include/osmocom/Makefile.am
@@ -0,0 +1,3 @@
+SUBDIRS = \
+	smlc \
+	$(NULL)
diff --git a/include/osmocom/smlc/Makefile.am b/include/osmocom/smlc/Makefile.am
new file mode 100644
index 0000000..599651d
--- /dev/null
+++ b/include/osmocom/smlc/Makefile.am
@@ -0,0 +1,4 @@
+noinst_HEADERS = \
+	smlc_data.h \
+	smlc_sigtran.h \
+	$(NULL)
diff --git a/include/osmocom/smlc/smlc_data.h b/include/osmocom/smlc/smlc_data.h
new file mode 100644
index 0000000..2506fdc
--- /dev/null
+++ b/include/osmocom/smlc/smlc_data.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#include <osmocom/core/linuxlist.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/rate_ctr.h>
+#include <osmocom/core/stat_item.h>
+#include <osmocom/core/tdef.h>
+
+#include <osmocom/ctrl/control_if.h>
+
+#include <osmocom/sigtran/sccp_sap.h>
+
+struct smlc_state {
+	struct osmo_sccp_user *sccp_user;
+	struct ctrl_handle *ctrl;
+
+	struct rate_ctr_group *ctrs;
+	struct osmo_stat_item_group *statg;
+	struct osmo_tdef *T_defs;
+};
+
+extern struct smlc_state *g_smlc;
+
+
+enum {
+	DSMLC,
+	DLB,		/* Lb interface */
+};
+
+
+int smlc_ctrl_node_lookup(void *data, vector vline, int *node_type,
+			  void **node_data, int *i);
+
+enum smlc_ctrl_node {
+	CTRL_NODE_SMLC = _LAST_CTRL_NODE,
+	_LAST_CTRL_NODE_SMLC
+};
diff --git a/include/osmocom/smlc/smlc_sigtran.h b/include/osmocom/smlc/smlc_sigtran.h
new file mode 100644
index 0000000..aeaf2c5
--- /dev/null
+++ b/include/osmocom/smlc/smlc_sigtran.h
@@ -0,0 +1,3 @@
+#pragma once
+
+int smlc_sigtran_init(void);
diff --git a/osmoappdesc.py b/osmoappdesc.py
new file mode 100644
index 0000000..86a6ac1
--- /dev/null
+++ b/osmoappdesc.py
@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+
+app_configs = {
+    "osmo-smlc": ["doc/examples/osmo-smlc/osmo-smlc.cfg"]
+}
+
+apps = [(4271, "src/osmo-smlc/osmo-smlc", "OsmoSMLC", "osmo-smlc")
+        ]
+
+vty_command = ["./src/osmo-smlc/osmo-smlc", "-c",
+               "doc/examples/osmo-smlc/osmo-smlc.cfg"]
+
+vty_app = apps[0]
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..26ff4d1
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,25 @@
+AM_CPPFLAGS = \
+	$(all_includes) \
+	-I$(top_srcdir)/include \
+	-I$(top_builddir) \
+	$(NULL)
+
+AM_CFLAGS = \
+	-Wall \
+	$(LIBOSMOCORE_CFLAGS) \
+	$(LIBOSMOGSM_CFLAGS) \
+	$(LIBOSMOVTY_CFLAGS) \
+	$(LIBOSMOCTRLY_CFLAGS) \
+	$(LIBOSMOSIGTRAN_CFLAGS) \
+	$(COVERAGE_CFLAGS) \
+	$(NULL)
+
+AM_LDFLAGS = \
+	$(LIBOSMOCORE_LIBS) \
+	$(LIBOSMOGSM_LIBS) \
+	$(COVERAGE_LDFLAGS) \
+	$(NULL)
+
+SUBDIRS = \
+	osmo-smlc \
+	$(NULL)
diff --git a/src/osmo-smlc/Makefile.am b/src/osmo-smlc/Makefile.am
new file mode 100644
index 0000000..269c23d
--- /dev/null
+++ b/src/osmo-smlc/Makefile.am
@@ -0,0 +1,38 @@
+AM_CPPFLAGS = \
+	$(all_includes) \
+	-I$(top_srcdir)/include \
+	-I$(top_builddir) \
+	$(NULL)
+
+AM_CFLAGS = \
+	-Wall \
+	$(LIBOSMOCORE_CFLAGS) \
+	$(LIBOSMOGSM_CFLAGS) \
+	$(LIBOSMOVTY_CFLAGS) \
+	$(LIBOSMOCTRL_CFLAGS) \
+	$(COVERAGE_CFLAGS) \
+	$(LIBOSMOSIGTRAN_CFLAGS) \
+	$(NULL)
+
+AM_LDFLAGS = \
+	$(COVERAGE_LDFLAGS) \
+	$(NULL)
+
+bin_PROGRAMS = \
+	osmo-smlc \
+	$(NULL)
+
+osmo_smlc_SOURCES = \
+	smlc_ctrl.c \
+	smlc_main.c \
+	smlc_sigtran.c \
+	$(NULL)
+
+osmo_smlc_LDADD = \
+	$(LIBOSMOCORE_LIBS) \
+	$(LIBOSMOGSM_LIBS) \
+	$(LIBOSMOVTY_LIBS) \
+	$(LIBOSMOCTRL_LIBS) \
+	$(COVERAGE_LDFLAGS) \
+	$(LIBOSMOSIGTRAN_LIBS) \
+	$(NULL)
diff --git a/src/osmo-smlc/smlc_ctrl.c b/src/osmo-smlc/smlc_ctrl.c
new file mode 100644
index 0000000..c211d89
--- /dev/null
+++ b/src/osmo-smlc/smlc_ctrl.c
@@ -0,0 +1,17 @@
+#include <osmocom/ctrl/control_if.h>
+
+
+/*! \brief control interface lookup function for bsc/bts/msc gsm_data
+ * \param[in] data Private data passed to controlif_setup()
+ * \param[in] vline Vector of the line holding the command string
+ * \param[out] node_type type (CTRL_NODE_) that was determined
+ * \param[out] node_data private dta of node that was determined
+ * \param i Current index into vline, up to which it is parsed
+ */
+int smlc_ctrl_node_lookup(void *data, vector vline, int *node_type,
+			  void **node_data, int *i)
+{
+	return 0;
+}
+
+
diff --git a/src/osmo-smlc/smlc_main.c b/src/osmo-smlc/smlc_main.c
new file mode 100644
index 0000000..9f32441
--- /dev/null
+++ b/src/osmo-smlc/smlc_main.c
@@ -0,0 +1,263 @@
+/* (C) 2020 by Harald Welte <laforge at gnumonks.org>
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/lienses/>.
+ *
+ */
+
+#include <osmocom/ctrl/control_cmd.h>
+#include <osmocom/ctrl/control_if.h>
+#include <osmocom/ctrl/ports.h>
+#include <osmocom/ctrl/control_vty.h>
+
+#include <osmocom/core/application.h>
+#include <osmocom/core/linuxlist.h>
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/signal.h>
+#include <osmocom/core/stats.h>
+#include <osmocom/core/rate_ctr.h>
+#include <osmocom/vty/telnet_interface.h>
+#include <osmocom/vty/ports.h>
+#include <osmocom/vty/logging.h>
+#include <osmocom/vty/command.h>
+
+#include <osmocom/sigtran/xua_msg.h>
+#include <osmocom/sigtran/sccp_sap.h>
+
+#include <osmocom/smlc/smlc_data.h>
+#include <osmocom/smlc/smlc_sigtran.h>
+
+#define _GNU_SOURCE
+#include <getopt.h>
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+
+#include "../../config.h"
+
+static const char *config_file = "osmo-smlc.cfg";
+static int daemonize = 0;
+static void *tall_smlc_ctx;
+struct smlc_state *g_smlc;
+
+static void print_usage()
+{
+	printf("Usage: osmo-smlc\n");
+}
+
+static void print_help()
+{
+	printf("  Some useful help...\n");
+	printf("  -h --help 			This text.\n");
+	printf("  -D --daemonize 		Fork the process into a background daemon.\n");
+	printf("  -d  --debug option 		--debug=DRLL:DMM:DRR:DRSL:DNM enable debugging.\n");
+	printf("  -V --version               	Print the version of OsmoBSC.\n");
+	printf("  -c --config-file filename	The config file to use.\n");
+	printf("  -e --log-level number		Set a global loglevel.\n");
+	printf("  --vty-ref-xml			Generate the VTY reference XML output and exit.\n");
+}
+
+static void handle_options(int argc, char **argv)
+{
+	while (1) {
+		int option_index = 0, c;
+		static int long_option = 0;
+		static struct option long_options[] = {
+			{"help", 0, 0, 'h'},
+			{"debug", 1, 0, 'd'},
+			{"daemonize", 0, 0, 'D'},
+			{"config-file", 1, 0, 'c'},
+			{"version", 0, 0, 'V' },
+			{"log-level", 1, 0, 'e'},
+			{"vty-ref-xml", 0, &long_option, 1},
+			{0, 0, 0, 0}
+		};
+
+		c = getopt_long(argc, argv, "hd:Dc:Ve:",
+				long_options, &option_index);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case 'h':
+			print_usage();
+			print_help();
+			exit(0);
+		case 0:
+			switch (long_option) {
+			case 1:
+				vty_dump_xml_ref(stdout);
+				exit(0);
+			default:
+				fprintf(stderr, "error parsing cmdline options\n");
+				exit(2);
+			}
+		case 'd':
+			log_parse_category_mask(osmo_stderr_target, optarg);
+			break;
+		case 'D':
+			daemonize = 1;
+			break;
+		case 'c':
+			config_file = optarg;
+			break;
+		case 'V':
+			print_version(1);
+			exit(0);
+			break;
+		case 'e':
+			log_set_log_level(osmo_stderr_target, atoi(optarg));
+			break;
+		default:
+			/* catch unknown options *as well as* missing arguments. */
+			fprintf(stderr, "Error in command line options. Exiting.\n");
+			exit(-1);
+		}
+	}
+
+	if (argc > optind) {
+		fprintf(stderr, "Unsupported positional arguments on command line\n");
+		exit(2);
+	}
+}
+
+static struct vty_app_info vty_info = {
+	.name 		= "OsmoSMLC",
+	.copyright	=
+	"Copyright (C) 2020 Harald Welte and sysmocom - s.f.m.c. GmbH\r\n\r\n"
+	"License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n"
+	"This is free software: you are free to change and redistribute it.\r\n"
+	"There is NO WARRANTY, to the extent permitted by law.\r\n",
+	.version	= PACKAGE_VERSION,
+};
+
+static void signal_handler(int signal)
+{
+	fprintf(stdout, "signal %u received\n", signal);
+
+	switch (signal) {
+	case SIGINT:
+	case SIGTERM:
+		exit(0);
+		break;
+	case SIGABRT:
+		/* in case of abort, we want to obtain a talloc report
+		 * and then return to the caller, who will abort the process */
+	case SIGUSR1:
+		talloc_report_full(tall_smlc_ctx, stderr);
+		break;
+	default:
+		break;
+	}
+}
+
+static const struct log_info_cat smlc_categories[] = {
+};
+
+const struct log_info log_info = {
+	.cat = smlc_categories,
+	.num_cat = ARRAY_SIZE(smlc_categories),
+};
+
+int main(int argc, char **argv)
+{
+	int rc;
+
+	tall_smlc_ctx = talloc_named_const(NULL, 1, "osmo-smlc");
+	msgb_talloc_ctx_init(tall_smlc_ctx, 0);
+	osmo_signal_talloc_ctx_init(tall_smlc_ctx);
+	osmo_xua_msg_tall_ctx_init(tall_smlc_ctx);
+	vty_info.tall_ctx = tall_smlc_ctx;
+
+	osmo_init_logging2(tall_smlc_ctx, &log_info);
+	osmo_stats_init(tall_smlc_ctx);
+	rate_ctr_init(tall_smlc_ctx);
+
+	osmo_fsm_set_dealloc_ctx(OTC_SELECT);
+
+	g_smlc = talloc_zero(tall_smlc_ctx, struct smlc_state);
+	OSMO_ASSERT(g_smlc);
+
+	/* This needs to precede handle_options() */
+	vty_init(&vty_info);
+	//smlc_vty_init(g_smlc);
+	ctrl_vty_init(tall_smlc_ctx);
+
+	/* Initialize SS7 */
+	OSMO_ASSERT(osmo_ss7_init() == 0);
+	osmo_ss7_vty_init_asp(tall_smlc_ctx);
+	osmo_sccp_vty_init();
+
+	/* parse options */
+	handle_options(argc, argv);
+
+	/* Read the config */
+	rc = vty_read_config_file(config_file, NULL);
+	if (rc < 0) {
+		fprintf(stderr, "Failed to parse the config file: '%s'\n", config_file);
+		exit(1);
+	}
+
+	/* Start telnet interface after reading config for vty_get_bind_addr() */
+	rc = telnet_init_dynif(tall_smlc_ctx, g_smlc, vty_get_bind_addr(), OSMO_VTY_PORT_SMLC);
+	if (rc < 0)
+		exit(1);
+
+	/* start control interface after reading config for
+	 * ctrl_vty_get_bind_addr() */
+	g_smlc->ctrl = ctrl_interface_setup_dynip2(g_smlc, ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_SMLC,
+						   smlc_ctrl_node_lookup, _LAST_CTRL_NODE_SMLC);
+	if (!g_smlc->ctrl) {
+		fprintf(stderr, "Failed to init the control interface. Exiting.\n");
+		exit(1);
+	}
+
+	/*
+	rc = smlc_ctrl_cmds_install(g_smlc);
+	if (rc < 0) {
+		fprintf(stderr, "Failed to install control commands. Exiting.\n");
+		exit(1);
+	}
+	*/
+
+	if (smlc_sigtran_init() != 0) {
+		LOGP(DLB, LOGL_ERROR, "Failed to initialize sigtran backhaul.\n");
+		exit(1);
+	}
+
+	signal(SIGINT, &signal_handler);
+	signal(SIGTERM, &signal_handler);
+	signal(SIGABRT, &signal_handler);
+	signal(SIGUSR1, &signal_handler);
+	signal(SIGUSR2, &signal_handler);
+	osmo_init_ignore_signals();
+
+	if (daemonize) {
+		rc = osmo_daemonize();
+		if (rc < 0) {
+			perror("Error during daemonize");
+			exit(1);
+		}
+	}
+
+	while (1) {
+		osmo_select_main_ctx(0);
+	}
+
+	return 0;
+}
diff --git a/src/osmo-smlc/smlc_sigtran.c b/src/osmo-smlc/smlc_sigtran.c
new file mode 100644
index 0000000..902df0c
--- /dev/null
+++ b/src/osmo-smlc/smlc_sigtran.c
@@ -0,0 +1,94 @@
+/* (C) 2020 by Harald Welte <laforge at gnumonks.org>
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/lienses/>.
+ *
+ */
+
+#include <errno.h>
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/fsm.h>
+#include <osmocom/core/linuxlist.h>
+#include <osmocom/sigtran/osmo_ss7.h>
+#include <osmocom/sigtran/sccp_sap.h>
+#include <osmocom/gsm/gsm0808.h>
+
+#include <osmocom/smlc/smlc_data.h>
+#include <osmocom/smlc/smlc_sigtran.h>
+
+
+#define DEFAULT_M3UA_REMOTE_IP	"localhost"
+#define DEFAULT_PC		"0.23.6"
+
+static int sccp_sap_up(struct osmo_prim_hdr *oph, void *_scu)
+{
+	struct osmo_scu_prim *scu_prim = (struct osmo_scu_prim *)oph;
+	//struct osmo_sccp_user *scu = _scu;
+	int rc = 0;
+
+	switch (OSMO_PRIM_HDR(&scu_prim->oph)) {
+	case OSMO_PRIM(OSMO_SCU_PRIM_N_UNITDATA, PRIM_OP_INDICATION):
+		/* Handle inbound UNITDATA */
+		DEBUGP(DLB, "N-UNITDATA.ind(%s)\n", osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg)));
+		//rc = handle_unitdata_from_bsc(&scu_prim->u.unitdata.calling_addr, oph->msg, scu);
+		break;
+	case OSMO_PRIM(OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_INDICATION):
+		/* Handle inbound connections */
+		DEBUGP(DLB, "N-CONNECT.ind(X->%u)\n", scu_prim->u.connect.conn_id);
+		break;
+	case OSMO_PRIM(OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_CONFIRM):
+		/* Handle outbound connection confirmation */
+		DEBUGP(DLB, "N-CONNECT.cnf(%u, %s)\n", scu_prim->u.connect.conn_id,
+			osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg)));
+		break;
+	case OSMO_PRIM(OSMO_SCU_PRIM_N_DATA, PRIM_OP_INDICATION):
+		/* Handle incoming connection oriented data */
+		DEBUGP(DLB, "N-DATA.ind(%u, %s)\n", scu_prim->u.data.conn_id,
+			osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg)));
+
+		break;
+	case OSMO_PRIM(OSMO_SCU_PRIM_N_DISCONNECT, PRIM_OP_INDICATION):
+		DEBUGP(DLB, "N-DISCONNECT.ind(%u, %s, cause=%i)\n", scu_prim->u.disconnect.conn_id,
+			osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg)),
+			scu_prim->u.disconnect.cause);
+		break;
+	default:
+		LOGP(DLB, LOGL_ERROR, "Unhandled SIGTRAN operation %s on primitive %u\n",
+			get_value_string(osmo_prim_op_names, oph->operation), oph->primitive);
+		break;
+	}
+
+	msgb_free(oph->msg);
+	return rc;
+}
+
+int smlc_sigtran_init(void)
+{
+	struct osmo_sccp_instance *sccp;
+	int default_pc = osmo_ss7_pointcode_parse(NULL, DEFAULT_PC);
+
+	OSMO_ASSERT(default_pc);
+
+	sccp = osmo_sccp_simple_client_on_ss7_id(g_smlc, 0, "Lb", default_pc, OSMO_SS7_ASP_PROT_M3UA,
+						 0, NULL, 0, DEFAULT_M3UA_REMOTE_IP);
+
+
+	g_smlc->sccp_user = osmo_sccp_user_bind(sccp, "SMLC", sccp_sap_up, OSMO_SCCP_SSN_SMLC_BSSAP);
+	if (!g_smlc->sccp_user)
+		return -EINVAL;
+
+	return 0;
+}
diff --git a/tests/Makefile.am b/tests/Makefile.am
new file mode 100644
index 0000000..a9f7001
--- /dev/null
+++ b/tests/Makefile.am
@@ -0,0 +1,84 @@
+SUBDIRS = \
+	$(NULL)
+
+# The `:;' works around a Bash 3.2 bug when the output is not writeable.
+$(srcdir)/package.m4: $(top_srcdir)/configure.ac
+	:;{ \
+               echo '# Signature of the current package.' && \
+               echo 'm4_define([AT_PACKAGE_NAME],' && \
+               echo '  [$(PACKAGE_NAME)])' && \
+               echo 'm4_define([AT_PACKAGE_TARNAME],' && \
+               echo '  [$(PACKAGE_TARNAME)])' && \
+               echo 'm4_define([AT_PACKAGE_VERSION],' && \
+               echo '  [$(PACKAGE_VERSION)])' && \
+               echo 'm4_define([AT_PACKAGE_STRING],' && \
+               echo '  [$(PACKAGE_STRING)])' && \
+               echo 'm4_define([AT_PACKAGE_BUGREPORT],' && \
+               echo '  [$(PACKAGE_BUGREPORT)])'; \
+               echo 'm4_define([AT_PACKAGE_URL],' && \
+               echo '  [$(PACKAGE_URL)])'; \
+             } >'$(srcdir)/package.m4'
+
+EXTRA_DIST = \
+	testsuite.at \
+	$(srcdir)/package.m4 \
+	$(TESTSUITE) \
+	test_nodes.vty \
+	$(NULL)
+
+TESTSUITE = $(srcdir)/testsuite
+
+DISTCLEANFILES = \
+	atconfig \
+	$(NULL)
+
+if ENABLE_EXT_TESTS
+python-tests: $(BUILT_SOURCES)
+	$(MAKE) vty-test
+	$(MAKE) ctrl-test
+else
+python-tests: $(BUILT_SOURCES)
+	echo "Not running python-based tests (determined at configure-time)"
+endif
+
+# Run a specific test with: 'make vty-test VTY_TEST=osmo-smlc.vty'
+VTY_TEST ?= *.vty
+
+# To update the VTY script from current application behavior,
+# pass -u to vty_script_runner.py by doing:
+#   make vty-test U=-u
+vty-test:
+	osmo_verify_transcript_vty.py -v \
+		-n OsmoSMLC -p 4271 \
+		-r "$(top_builddir)/src/osmo-smlc/osmo-smlc -c $(top_srcdir)/doc/examples/osmo-smlc/osmo-smlc.cfg" \
+		$(U) $(srcdir)/$(VTY_TEST)
+
+# To update the CTRL script from current application behavior,
+# pass -u to ctrl_script_runner.py by doing:
+#   make ctrl-test U=-u
+ctrl-test:
+	-rm -f $(CTRL_TEST_DB)
+	osmo_verify_transcript_ctrl.py -v \
+		-p 4272 \
+		-r "$(top_builddir)/src/osmo-smlc/osmo-smlc -c $(top_srcdir)/doc/examples/osmo-smlc.cfg -l $(CTRL_TEST_DB)" \
+		$(U) $(srcdir)/*.ctrl
+	-rm -f $(CTRL_TEST_DB)
+	-rm $(CTRL_TEST_DB)-*
+
+check-local: atconfig $(TESTSUITE)
+	$(SHELL) '$(TESTSUITE)' $(TESTSUITEFLAGS)
+	$(MAKE) $(AM_MAKEFLAGS) python-tests
+
+installcheck-local: atconfig $(TESTSUITE)
+	$(SHELL) '$(TESTSUITE)' AUTOTEST_PATH='$(bindir)' \
+		$(TESTSUITEFLAGS)
+
+clean-local:
+	test ! -f '$(TESTSUITE)' || \
+		$(SHELL) '$(TESTSUITE)' --clean
+
+AUTOM4TE = $(SHELL) $(top_srcdir)/missing --run autom4te
+AUTOTEST = $(AUTOM4TE) --language=autotest
+$(TESTSUITE): $(srcdir)/testsuite.at $(srcdir)/package.m4
+	$(AUTOTEST) -I '$(srcdir)' -o $@.tmp $@.at
+	mv $@.tmp $@
diff --git a/tests/atlocal.in b/tests/atlocal.in
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/atlocal.in
diff --git a/tests/test_nodes.vty b/tests/test_nodes.vty
new file mode 100644
index 0000000..8ad784a
--- /dev/null
+++ b/tests/test_nodes.vty
@@ -0,0 +1,3 @@
+OsmoSMLC> enable
+OsmoSMLC#
+...
diff --git a/tests/testsuite.at b/tests/testsuite.at
new file mode 100644
index 0000000..09a77c3
--- /dev/null
+++ b/tests/testsuite.at
@@ -0,0 +1,2 @@
+AT_INIT
+AT_BANNER([Regression tests.])

-- 
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Gerrit-Project: osmo-smlc
Gerrit-Branch: master
Gerrit-Change-Id: I706aa9e11a646aad71bb310fa552d0bdb5084d4b
Gerrit-Change-Number: 19779
Gerrit-PatchSet: 1
Gerrit-Owner: laforge <laforge at osmocom.org>
Gerrit-MessageType: newchange
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