diff options
authorHolger Hans Peter Freyther <>2016-03-20 18:49:29 +0100
committerHolger Hans Peter Freyther <>2016-03-21 09:54:37 +0100
commita1909e6c80448f3dd7b56942a5af9d4106afd2f9 (patch)
Initial commit for a MNCC to SIP gateway (and maybe auth GW too)0.0.1
* It is written in C and using libosmovty and other data structures * It is using sofia-sip for the SIP handling as a good library for such a task * It is using glib for the sofia-sip event loop integration. In the future we can write our own root context but right now that looks like a necessary evil. No glib usage is allowed in this code and only sofia-glib is linked.
12 files changed, 1141 insertions, 0 deletions
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+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
diff --git a/ b/
new file mode 100644
index 0000000..2145cce
--- /dev/null
+++ b/
@@ -0,0 +1,10 @@
+AUTOMAKE_OPTIONS = foreign dist-bzip2 1.6
+SUBDIRS = src
+BUILT_SOURCES = $(top_srcdir)/.version
+EXTRA_DIST = git-version-gen .version
+ echo $(VERSION) > $@-t && mv $@-t $@
+ echo $(VERSION) > $(distdir)/.tarball-version
diff --git a/README.asciidoc b/README.asciidoc
new file mode 100644
index 0000000..ae4b746
--- /dev/null
+++ b/README.asciidoc
@@ -0,0 +1,8 @@
+Osmo SIP Connector
+Simple utility to map MNCC to SIP and SIP to MNCC. The VTY interface
+can be used to make configurations. The code doesn't have any RTP or
+transcoding support.
+Call identities can be either the MSISDN or the IMSI of the subscriber.
diff --git a/ b/
new file mode 100644
index 0000000..d4a39a8
--- /dev/null
+++ b/
@@ -0,0 +1,17 @@
+ m4_esyscmd([./git-version-gen .tarball-version]),
+ [])
+dnl kernel style compile messages
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.8.0)
+PKG_CHECK_MODULES(SOFIASIP, sofia-sip-ua-glib >= 1.12.0)
+ src/Makefile
+ Makefile)
diff --git a/git-version-gen b/git-version-gen
new file mode 100755
index 0000000..f2ad4a7
--- /dev/null
+++ b/git-version-gen
@@ -0,0 +1,151 @@
+# Print a version string.
+# 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
+# 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 <>.
+# This script is derived from GIT-VERSION-GEN from GIT:
+# 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, so that $(VERSION) will
+# automatically be up-to-date each time configure is run (and note that
+# since no longer includes a version string, Makefile rules
+# should not depend on for version updates).
+# AC_INIT([GNU project],
+# m4_esyscmd([build-aux/git-version-gen .tarball-version]),
+# [bug-project@example])
+# Then use the following lines in your, 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;;
+# First see if there is a tarball-only version file.
+# then try "git describe", then default.
+if test -f $tarball_version_file
+ 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: $tarball_version_file seems to be damaged" 1>&2
+if test -n "$v"
+ : # use $v
+elif test -d ./../.git \
+ && 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
+ # 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-/'`;
+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 ;;
+# 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/src/ b/src/
new file mode 100644
index 0000000..bdb8d74
--- /dev/null
+++ b/src/
@@ -0,0 +1,12 @@
+bin_PROGRAMS = osmo-sip-connector
+osmo_sip_connector_SOURCES = \
+ evpoll.c \
+ vty.c \
+ main.c
+osmo_sip_connector_LDADD = \
diff --git a/src/evpoll.c b/src/evpoll.c
new file mode 100644
index 0000000..9593764
--- /dev/null
+++ b/src/evpoll.c
@@ -0,0 +1,108 @@
+ * (C) 2016 by Holger Hans Peter Freyther
+ *
+ * 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
+ * GNU 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 <>.
+ *
+ */
+#include "evpoll.h"
+#include <osmocom/core/linuxlist.h>
+#include <osmocom/core/select.h>
+#include <osmocom/core/timer.h>
+#include <sys/select.h>
+/* based on osmo_select_main GPLv2+ so combined compatible with AGPLv3+ */
+int evpoll(struct pollfd *fds, nfds_t nfds, int timeout)
+ struct timeval *tv, null_tv = { 0, 0} , poll_tv;
+ fd_set readset, writeset, exceptset;
+ int maxfd, rc, i;
+ FD_ZERO(&readset);
+ FD_ZERO(&writeset);
+ FD_ZERO(&exceptset);
+ /* prepare read and write fdsets */
+ maxfd = osmo_fd_fill_fds(&readset, &writeset, &exceptset);
+ for (i = 0; i < nfds; ++i) {
+ if (fds[i].fd < 0)
+ continue;
+ if ((fds[i].events & (POLLIN | POLLOUT | POLLERR)) == 0)
+ continue;
+ /* copy events, glib seems to map POLLPRI to exceptionset? */
+ if (fds[i].events & POLLIN)
+ FD_SET(fds[i].fd, &readset);
+ if (fds[i].events & POLLOUT)
+ FD_SET(fds[i].fd, &writeset);
+ if (fds[i].events & POLLERR)
+ FD_SET(fds[i].fd, &exceptset);
+ if (fds[i].fd > maxfd)
+ maxfd = fds[i].fd;
+ }
+ osmo_timers_check();
+ osmo_timers_prepare();
+ /*
+ * 0 == wake-up immediately
+ * -1 == block forever.. which will depend on our timers
+ */
+ if (timeout == 0) {
+ tv = &null_tv;
+ } else if (timeout == -1)
+ tv = osmo_timers_nearest();
+ else {
+ poll_tv.tv_sec = timeout / 1000;
+ poll_tv.tv_usec = (timeout % 1000) * 1000;
+ tv = osmo_timers_nearest();
+ if (!tv)
+ tv = &poll_tv;
+ else if (timercmp(&poll_tv, tv, <))
+ tv = &poll_tv;
+ }
+ rc = select(maxfd+1, &readset, &writeset, &exceptset, tv);
+ if (rc < 0)
+ return 0;
+ /* fire timers */
+ osmo_timers_update();
+ /* call registered callback functions */
+ osmo_fd_disp_fds(&readset, &writeset, &exceptset);
+ for (i = 0; i < nfds; ++i) {
+ if (fds[i].fd < 0)
+ continue;
+ fds[i].revents = 0;
+ if (FD_ISSET(fds[i].fd, &readset))
+ fds[i].revents = POLLIN;
+ if (FD_ISSET(fds[i].fd, &writeset))
+ fds[i].revents |= POLLOUT;
+ if (FD_ISSET(fds[i].fd, &exceptset))
+ fds[i].revents |= POLLERR;
+ }
+ return rc;
diff --git a/src/evpoll.h b/src/evpoll.h
new file mode 100644
index 0000000..dad54b5
--- /dev/null
+++ b/src/evpoll.h
@@ -0,0 +1,8 @@
+#pragma once
+#include <poll.h>
+ * integrate with external event loop, e.g. glib
+ */
+int evpoll(struct pollfd *fds, nfds_t nfds, int timeout);
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..4d8d360
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,90 @@
+ * (C) 2016 by Holger Hans Peter Freyther
+ *
+ * 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
+ * GNU 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 <>.
+ *
+ */
+#include "evpoll.h"
+#include "vty.h"
+#include <osmocom/core/application.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/stats.h>
+#include <osmocom/vty/logging.h>
+#include <osmocom/vty/stats.h>
+#include <osmocom/vty/ports.h>
+#include <osmocom/vty/telnet_interface.h>
+#include <talloc.h>
+#include <sofia-sip/su_glib.h>
+#include <stdlib.h>
+void *tall_mncc_ctx;
+static struct log_info_cat mncc_sip_categories[] = {
+static const struct log_info mncc_sip_info = {
+ .cat = mncc_sip_categories,
+ .num_cat = ARRAY_SIZE(mncc_sip_categories),
+int main(int argc, char **argv)
+ int rc;
+ su_root_t *sip_root;
+ GMainLoop *loop;
+ /* initialize osmocom */
+ tall_mncc_ctx = talloc_named_const(NULL, 0, "MNCC CTX");
+ osmo_init_ignore_signals();
+ osmo_init_logging(&mncc_sip_info);
+ osmo_stats_init(tall_mncc_ctx);
+ mncc_sip_vty_init();
+ logging_vty_add_cmds(&mncc_sip_info);
+ osmo_stats_vty_add_cmds(&mncc_sip_info);
+ /* sofia sip */
+ su_init();
+ sip_root = su_glib_root_create(NULL);
+ /* parsing and setup */
+ rc = telnet_init(tall_mncc_ctx, NULL, OSMO_VTY_PORT_MNCC_SIP);
+ if (rc < 0)
+ exit(1);
+ /* marry sofia-sip to glib and glib to libosmocore */
+ loop = g_main_loop_new(NULL, FALSE);
+ g_source_attach(su_glib_root_gsource(sip_root), g_main_loop_get_context(loop));
+ su_root_threading(sip_root, 0);
+ /* prepare integration with osmocom */
+ g_main_context_set_poll_func(g_main_loop_get_context(loop),
+ (GPollFunc) evpoll);
+ g_main_loop_run(loop);
+ g_main_loop_unref(loop);
+ return EXIT_SUCCESS;
diff --git a/src/vty.c b/src/vty.c
new file mode 100644
index 0000000..de347cd
--- /dev/null
+++ b/src/vty.c
@@ -0,0 +1,48 @@
+ * (C) 2016 by Holger Hans Peter Freyther
+ *
+ * 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
+ * GNU 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 <>.
+ *
+ */
+#include "vty.h"
+static int mncc_vty_go_parent(struct vty *vty);
+static int mncc_vty_is_config_node(struct vty *vty, int node);
+static struct vty_app_info vty_info = {
+ .name = "OsmoMNCC",
+ .version = PACKAGE_VERSION,
+ .go_parent_cb = mncc_vty_go_parent,
+ .is_config_node = mncc_vty_is_config_node,
+ .copyright = "GNU AGPLv3+\n",
+static int mncc_vty_go_parent(struct vty *vty)
+ return 0;
+static int mncc_vty_is_config_node(struct vty *vty, int node)
+ return 0;
+void mncc_sip_vty_init(void)
+ vty_init(&vty_info);
diff --git a/src/vty.h b/src/vty.h
new file mode 100644
index 0000000..819ae8a
--- /dev/null
+++ b/src/vty.h
@@ -0,0 +1,5 @@
+#pragma once
+#include <osmocom/vty/vty.h>
+void mncc_sip_vty_init();