fix

iproute2/patches/100-configure.patch

@@ -0,0 +1,12 @@
+--- a/configure
++++ b/configure
+@@ -34,7 +34,8 @@ int main(int argc, char **argv) {
+ }
+ EOF
+ 
+-    if $CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1; then
++# OpenWrt: disable ATM support even if present on host system
++    if [ 1 -eq 0 ]; then
+ 	echo "TC_CONFIG_ATM:=y" >>$CONFIG
+ 	echo yes
+     else

iproute2/patches/110-darwin_fixes.patch

@@ -0,0 +1,59 @@
+--- a/netem/maketable.c
++++ b/netem/maketable.c
+@@ -10,7 +10,9 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <math.h>
++#if !defined(__APPLE__) && !defined(__FreeBSD__)
+ #include <malloc.h>
++#endif
+ #include <string.h>
+ #include <sys/types.h>
+ #include <sys/stat.h>
+--- a/netem/normal.c
++++ b/netem/normal.c
+@@ -8,8 +8,12 @@
+ #include <string.h>
+ #include <limits.h>
+ 
++#if !defined(__APPLE__) && !defined(__FreeBSD__)
+ #include <linux/types.h>
+ #include <linux/pkt_sched.h>
++#else
++#define NETEM_DIST_SCALE        8192
++#endif
+ 
+ #define TABLESIZE 16384
+ #define TABLEFACTOR NETEM_DIST_SCALE
+--- a/netem/pareto.c
++++ b/netem/pareto.c
+@@ -7,8 +7,12 @@
+ #include <math.h>
+ #include <limits.h>
+ 
++#if !defined(__APPLE__) && !defined(__FreeBSD__)
+ #include <linux/types.h>
+ #include <linux/pkt_sched.h>
++#else
++#define NETEM_DIST_SCALE        8192
++#endif
+ 
+ static const double a=3.0;
+ #define TABLESIZE	16384
+--- a/netem/paretonormal.c
++++ b/netem/paretonormal.c
+@@ -14,10 +14,13 @@
+ #include <string.h>
+ #include <math.h>
+ #include <limits.h>
++#if !defined(__APPLE__) && !defined(__FreeBSD__)
+ #include <malloc.h>
+-
+ #include <linux/types.h>
+ #include <linux/pkt_sched.h>
++#else
++#define NETEM_DIST_SCALE        8192
++#endif
+ 
+ #define TABLESIZE	16384
+ #define TABLEFACTOR	NETEM_DIST_SCALE

iproute2/patches/115-add-config-xtlibdir.patch

@@ -0,0 +1,12 @@
+--- a/tc/Makefile
++++ b/tc/Makefile
+@@ -128,6 +128,9 @@ CFLAGS += -DCONFIG_GACT -DCONFIG_GACT_PR
+ ifneq ($(IPT_LIB_DIR),)
+ 	CFLAGS += -DIPT_LIB_DIR=\"$(IPT_LIB_DIR)\"
+ endif
++ifneq ($(XT_LIB_DIR),)
++	CFLAGS += -DXT_LIB_DIR=\"$(XT_LIB_DIR)\"
++endif
+ 
+ LEX := flex
+ CFLAGS += -DYY_NO_INPUT

iproute2/patches/120-no_arpd_ifstat_rtacct_lnstat.patch

@@ -0,0 +1,20 @@
+--- a/misc/Makefile
++++ b/misc/Makefile
+@@ -2,13 +2,13 @@
+ SSOBJ=ss.o ssfilter_check.o ssfilter.tab.o
+ LNSTATOBJ=lnstat.o lnstat_util.o
+ 
+-TARGETS=ss nstat ifstat rtacct lnstat
++TARGETS=ss nstat
+ 
+ include ../config.mk
+ 
+-ifeq ($(HAVE_BERKELEY_DB),y)
+-	TARGETS += arpd
+-endif
++#ifeq ($(HAVE_BERKELEY_DB),y)
++#	TARGETS += arpd
++#endif
+ 
+ all: $(TARGETS)
+ 

iproute2/patches/130-no_netem_tipc_dcb_man_vdpa.patch

@@ -0,0 +1,14 @@
+--- a/Makefile
++++ b/Makefile
+@@ -65,9 +65,9 @@ WFLAGS += -Wmissing-declarations -Wold-s
+ CFLAGS := $(WFLAGS) $(CCOPTS) -I../include -I../include/uapi $(DEFINES) $(CFLAGS)
+ YACCFLAGS = -d -t -v
+ 
+-SUBDIRS=lib ip tc bridge misc netem genl man
++SUBDIRS=lib ip tc bridge misc genl
+ ifeq ($(HAVE_MNL),y)
+-SUBDIRS += tipc devlink rdma dcb vdpa
++SUBDIRS += devlink rdma
+ endif
+ 
+ LIBNETLINK=../lib/libutil.a ../lib/libnetlink.a

iproute2/patches/140-allow_pfifo_fast.patch

@@ -0,0 +1,9 @@
+--- a/tc/q_fifo.c
++++ b/tc/q_fifo.c
+@@ -95,5 +95,6 @@ struct qdisc_util pfifo_head_drop_qdisc_
+ 
+ struct qdisc_util pfifo_fast_qdisc_util = {
+ 	.id = "pfifo_fast",
++	.parse_qopt = fifo_parse_opt,
+ 	.print_qopt = prio_print_opt,
+ };

iproute2/patches/140-keep_libmnl_optional.patch

@@ -0,0 +1,11 @@
+--- a/configure
++++ b/configure
+@@ -387,7 +387,7 @@ check_selinux()
+ 
+ check_mnl()
+ {
+-	if ${PKG_CONFIG} libmnl --exists; then
++	if [ "${HAVE_MNL}" = "y" ] && ${PKG_CONFIG} libmnl --exists; then
+ 		echo "HAVE_MNL:=y" >>$CONFIG
+ 		echo "yes"
+ 

iproute2/patches/145-keep_libelf_optional.patch

@@ -0,0 +1,11 @@
+--- a/configure
++++ b/configure
+@@ -255,7 +255,7 @@ EOF
+ 
+ check_elf()
+ {
+-    if ${PKG_CONFIG} libelf --exists; then
++    if [ "${HAVE_ELF}" = "y" ] && ${PKG_CONFIG} libelf --exists; then
+ 	echo "HAVE_ELF:=y" >>$CONFIG
+ 	echo "yes"
+ 

iproute2/patches/150-keep_libcap_optional.patch

@@ -0,0 +1,11 @@
+--- a/configure
++++ b/configure
+@@ -445,7 +445,7 @@ EOF
+ 
+ check_cap()
+ {
+-	if ${PKG_CONFIG} libcap --exists; then
++	if [ "${HAVE_CAP}" = "y" ] && ${PKG_CONFIG} libcap --exists; then
+ 		echo "HAVE_CAP:=y" >>$CONFIG
+ 		echo "yes"
+ 

iproute2/patches/155-keep_tirpc_optional.patch

@@ -0,0 +1,11 @@
+--- a/configure
++++ b/configure
+@@ -398,7 +398,7 @@ check_selinux()
+ 
+ check_tirpc()
+ {
+-	if ${PKG_CONFIG} libtirpc --exists; then
++	if [ "${HAVE_TIRPC}" = "y" ] && ${PKG_CONFIG} libtirpc --exists; then
+ 		echo "HAVE_RPC:=y" >>$CONFIG
+ 		echo "yes"
+ 

iproute2/patches/160-libnetlink-pic.patch

@@ -0,0 +1,11 @@
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ include ../config.mk
+ 
+-CFLAGS += -fPIC
++CFLAGS += $(FPIC)
+ 
+ UTILOBJ = utils.o utils_math.o rt_names.o ll_map.o ll_types.o ll_proto.o ll_addr.o \
+ 	inet_proto.o namespace.o json_writer.o json_print.o json_print_math.o \

iproute2/patches/170-ip_tiny.patch

@@ -0,0 +1,108 @@
+--- a/ip/Makefile
++++ b/ip/Makefile
+@@ -19,6 +19,13 @@ RTMONOBJ=rtmon.o
+ 
+ include ../config.mk
+ 
++STATIC_SYM_FILTER:=
++ifeq ($(IP_CONFIG_TINY),y)
++  STATIC_SYM_FILTER:=iplink_can.c iplink_ipoib.c iplink_vxlan.c
++  CFLAGS += -DIPROUTE2_TINY
++endif
++STATIC_SYM_SOURCES:=$(filter-out $(STATIC_SYM_FILTER),$(wildcard *.c))
++
+ ALLOBJ=$(IPOBJ) $(RTMONOBJ)
+ SCRIPTS=routel
+ TARGETS=ip rtmon
+@@ -48,7 +55,7 @@ else
+ 
+ ip: static-syms.o
+ static-syms.o: static-syms.h
+-static-syms.h: $(wildcard *.c)
++static-syms.h: $(STATIC_SYM_SOURCES)
+ 	files="$^" ; \
+ 	for s in `grep -B 3 '\<dlsym' $$files | sed -n '/snprintf/{s:.*"\([^"]*\)".*:\1:;s:%s::;p}'` ; do \
+ 		sed -n '/'$$s'[^ ]* =/{s:.* \([^ ]*'$$s'[^ ]*\) .*:extern char \1[] __attribute__((weak)); if (!strcmp(sym, "\1")) return \1;:;p}' $$files ; \
+--- a/ip/ip.c
++++ b/ip/ip.c
+@@ -61,11 +61,17 @@ static void usage(void)
+ 	fprintf(stderr,
+ 		"Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }\n"
+ 		"       ip [ -force ] -batch filename\n"
++#ifndef IPROUTE2_TINY
+ 		"where  OBJECT := { address | addrlabel | amt | fou | help | ila | ioam | l2tp |\n"
+ 		"                   link | macsec | maddress | monitor | mptcp | mroute | mrule |\n"
+ 		"                   neighbor | neighbour | netconf | netns | nexthop | ntable |\n"
+ 		"                   ntbl | route | rule | sr | tap | tcpmetrics |\n"
+ 		"                   token | tunnel | tuntap | vrf | xfrm }\n"
++#else
++		"where  OBJECT := { address | link | maddress | monitor |\n"
++		"                   neighbor | neighbour | netns | route |\n"
++		"                   rule | token | tunnel }\n"
++#endif
+ 		"       OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n"
+ 		"                    -h[uman-readable] | -iec | -j[son] | -p[retty] |\n"
+ 		"                    -f[amily] { inet | inet6 | mpls | bridge | link } |\n"
+@@ -88,37 +94,49 @@ static const struct cmd {
+ 	int (*func)(int argc, char **argv);
+ } cmds[] = {
+ 	{ "address",	do_ipaddr },
++#ifndef IPROUTE2_TINY
+ 	{ "addrlabel",	do_ipaddrlabel },
++#endif
+ 	{ "maddress",	do_multiaddr },
+ 	{ "route",	do_iproute },
+ 	{ "rule",	do_iprule },
+ 	{ "neighbor",	do_ipneigh },
+ 	{ "neighbour",	do_ipneigh },
++#ifndef IPROUTE2_TINY
+ 	{ "ntable",	do_ipntable },
+ 	{ "ntbl",	do_ipntable },
++#endif
+ 	{ "link",	do_iplink },
++#ifndef IPROUTE2_TINY
+ 	{ "l2tp",	do_ipl2tp },
+ 	{ "fou",	do_ipfou },
+ 	{ "ila",	do_ipila },
+ 	{ "macsec",	do_ipmacsec },
++#endif
+ 	{ "tunnel",	do_iptunnel },
+ 	{ "tunl",	do_iptunnel },
++#ifndef IPROUTE2_TINY
+ 	{ "tuntap",	do_iptuntap },
+ 	{ "tap",	do_iptuntap },
+ 	{ "token",	do_iptoken },
+ 	{ "tcpmetrics",	do_tcp_metrics },
+ 	{ "tcp_metrics", do_tcp_metrics },
++#endif
+ 	{ "monitor",	do_ipmonitor },
++#ifndef IPROUTE2_TINY
+ 	{ "xfrm",	do_xfrm },
+ 	{ "mroute",	do_multiroute },
+ 	{ "mrule",	do_multirule },
++#endif
+ 	{ "netns",	do_netns },
++#ifndef IPROUTE2_TINY
+ 	{ "netconf",	do_ipnetconf },
+ 	{ "vrf",	do_ipvrf},
+ 	{ "sr",		do_seg6 },
+ 	{ "nexthop",	do_ipnh },
+ 	{ "mptcp",	do_mptcp },
+ 	{ "ioam",	do_ioam6 },
++#endif
+ 	{ "help",	do_help },
+ 	{ "stats",	do_ipstats },
+ 	{ 0 }
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -3,6 +3,10 @@ include ../config.mk
+ 
+ CFLAGS += $(FPIC)
+ 
++ifeq ($(IP_CONFIG_TINY),y)
++  CFLAGS += -DIPROUTE2_TINY
++endif
++
+ UTILOBJ = utils.o utils_math.o rt_names.o ll_map.o ll_types.o ll_proto.o ll_addr.o \
+ 	inet_proto.o namespace.o json_writer.o json_print.o json_print_math.o \
+ 	names.o color.o bpf_legacy.o bpf_glue.o exec.o fs.o cg_map.o ppp_proto.o

iproute2/patches/175-reduce-dynamic-syms.patch

@@ -0,0 +1,45 @@
+--- a/tc/Makefile
++++ b/tc/Makefile
+@@ -114,7 +114,7 @@ LDLIBS += -L. -lm
+ 
+ ifeq ($(SHARED_LIBS),y)
+ LDLIBS += -ldl
+-LDFLAGS += -Wl,-export-dynamic
++LDFLAGS += -Wl,--dynamic-list=dynsyms.list
+ endif
+ 
+ TCLIB := tc_core.o
+@@ -144,7 +144,7 @@ MODDESTDIR := $(DESTDIR)$(LIBDIR)/tc
+ all: tc $(TCSO)
+ 
+ tc: $(TCOBJ) $(LIBNETLINK) libtc.a
+-	$(QUIET_LINK)$(CC) $^ $(LDFLAGS) $(LDLIBS) -o $@
++	$(QUIET_LINK)$(CC) $(filter-out dynsyms.list, $^) $(LDFLAGS) $(LDLIBS) -o $@
+ 
+ libtc.a: $(TCLIB)
+ 	$(QUIET_AR)$(AR) rcs $@ $^
+@@ -166,6 +166,7 @@ install: all
+ clean:
+ 	rm -f $(TCOBJ) $(TCLIB) libtc.a tc *.so emp_ematch.tab.h; \
+ 	rm -f emp_ematch.tab.*
++	rm -f dynsyms.list
+ 
+ q_atm.so: q_atm.c
+ 	$(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fpic -o q_atm.so q_atm.c -latm
+@@ -205,4 +206,16 @@ static-syms.h: $(wildcard *.c)
+ 		sed -n '/'$$s'[^ ]* =/{s:.* \([^ ]*'$$s'[^ ]*\) .*:extern char \1[] __attribute__((weak)); if (!strcmp(sym, "\1")) return \1;:;p}' $$files ; \
+ 	done > $@
+ 
++else
++
++tc: dynsyms.list
++m_xt.so: dynsyms.list
++dynsyms.list: $(wildcard *.c)
++	files="$(filter-out $(patsubst %.so,%.c,$(TCSO)), $^)" ; \
++	echo "{" > $@ ; \
++	for s in `grep -B 3 '\<dlsym' $$files | sed -n '/snprintf/{s:.*"\([^"]*\)".*:\1:;s:%s::;p}'` ; do \
++		sed -n '/'$$s'[^ ]* =/{s:.* \([^ ]*'$$s'[^ ]*\) .*:\1;:;p}' $$files ; \
++	done >> $@ ; \
++	echo "show_stats; print_nl; print_tm; parse_rtattr; parse_rtattr_flags; get_u32; matches; addattr_l; addattr_nest; addattr_nest_end; };" >> $@
++
+ endif

iproute2/patches/180-drop_FAILED_POLICY.patch

@@ -0,0 +1,41 @@
+From 4e7dbf76227e8c7be7897dc81def3011f637864d Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Thu, 30 May 2013 11:54:04 +0200
+Subject: [PATCH] add support for dropping with FAILED_POLICY
+
+---
+ include/linux/fib_rules.h |    4 ++++
+ include/linux/rtnetlink.h |    1 +
+ ip/rtm_map.c              |    4 ++++
+ 3 files changed, 9 insertions(+)
+
+--- a/ip/rtm_map.c
++++ b/ip/rtm_map.c
+@@ -54,6 +54,8 @@ char *rtnl_rtntype_n2a(int id, char *buf
+ 		return "nat";
+ 	case RTN_XRESOLVE:
+ 		return "xresolve";
++	case RTN_FAILED_POLICY:
++		return "failed_policy";
+ 	default:
+ 		snprintf(buf, len, "%d", id);
+ 		return buf;
+@@ -89,6 +91,8 @@ int rtnl_rtntype_a2n(int *id, char *arg)
+ 		res = RTN_UNICAST;
+ 	else if (strcmp(arg, "throw") == 0)
+ 		res = RTN_THROW;
++	else if (strcmp(arg, "failed_policy") == 0)
++		res = RTN_FAILED_POLICY;
+ 	else {
+ 		res = strtoul(arg, &end, 0);
+ 		if (!end || end == arg || *end || res > 255)
+--- a/include/uapi/linux/rtnetlink.h
++++ b/include/uapi/linux/rtnetlink.h
+@@ -256,6 +256,7 @@ enum {
+ 	RTN_THROW,		/* Not in this table		*/
+ 	RTN_NAT,		/* Translate this address	*/
+ 	RTN_XRESOLVE,		/* Use external resolver	*/
++	RTN_FAILED_POLICY,      /* Source address failed policy */
+ 	__RTN_MAX
+ };
+ 

iproute2/patches/190-fix-nls-rpath-link.patch

@@ -0,0 +1,20 @@
+--- a/configure
++++ b/configure
+@@ -279,7 +279,7 @@ int main(int argc, char **argv) {
+ }
+ EOF
+ 
+-    $CC -o $TMPDIR/libbpf_test $TMPDIR/libbpf_test.c $LIBBPF_CFLAGS $LIBBPF_LDLIBS >/dev/null 2>&1
++    $CC -o $TMPDIR/libbpf_test $TMPDIR/libbpf_test.c $LIBBPF_CFLAGS $LIBBPF_LDLIBS $LDFLAGS >/dev/null 2>&1
+     local ret=$?
+ 
+     rm -f $TMPDIR/libbpf_test.c $TMPDIR/libbpf_test
+@@ -297,7 +297,7 @@ int main(int argc, char **argv) {
+ }
+ EOF
+ 
+-    $CC -o $TMPDIR/libbpf_sec_test $TMPDIR/libbpf_sec_test.c $LIBBPF_CFLAGS $LIBBPF_LDLIBS >/dev/null 2>&1
++    $CC -o $TMPDIR/libbpf_sec_test $TMPDIR/libbpf_sec_test.c $LIBBPF_CFLAGS $LIBBPF_LDLIBS $LDFLAGS >/dev/null 2>&1
+     local ret=$?
+ 
+     rm -f $TMPDIR/libbpf_sec_test.c $TMPDIR/libbpf_sec_test

iproute2/patches/195-build_variant_ip_tc.patch

@@ -0,0 +1,22 @@
+--- a/ip/Makefile
++++ b/ip/Makefile
+@@ -28,7 +28,7 @@ STATIC_SYM_SOURCES:=$(filter-out $(STATI
+ 
+ ALLOBJ=$(IPOBJ) $(RTMONOBJ)
+ SCRIPTS=routel
+-TARGETS=ip rtmon
++TARGETS=$(findstring ip,$(BUILD_VARIANT)) rtmon
+ 
+ all: $(TARGETS) $(SCRIPTS)
+ 
+--- a/tc/Makefile
++++ b/tc/Makefile
+@@ -140,7 +140,7 @@ MODDESTDIR := $(DESTDIR)$(LIBDIR)/tc
+ 	$(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fpic $< -o $@
+ 
+ 
+-all: tc $(TCSO)
++all: $(findstring tc,$(BUILD_VARIANT)) $(TCSO)
+ 
+ tc: $(TCOBJ) $(LIBNETLINK) libtc.a
+ 	$(QUIET_LINK)$(CC) $(filter-out dynsyms.list, $^) $(LDFLAGS) $(LDLIBS) -o $@

iproute2/patches/200-drop_libbsd_dependency.patch

@@ -0,0 +1,19 @@
+--- a/configure
++++ b/configure
+@@ -431,14 +431,8 @@ EOF
+     if $CC -I$INCLUDE -o $TMPDIR/strtest $TMPDIR/strtest.c >/dev/null 2>&1; then
+ 	echo "no"
+     else
+-	if ${PKG_CONFIG} libbsd --exists; then
+-		echo 'CFLAGS += -DHAVE_LIBBSD' `${PKG_CONFIG} libbsd --cflags` >>$CONFIG
+-		echo 'LDLIBS +=' `${PKG_CONFIG} libbsd --libs` >> $CONFIG
+-		echo "no"
+-	else
+-		echo 'CFLAGS += -DNEED_STRLCPY' >>$CONFIG
+-		echo "yes"
+-	fi
++	echo 'CFLAGS += -DNEED_STRLCPY' >>$CONFIG
++	echo "yes"
+     fi
+     rm -f $TMPDIR/strtest.c $TMPDIR/strtest
+ }

iproute2/patches/300-selinux-configurable.patch

@@ -0,0 +1,11 @@
+--- a/configure
++++ b/configure
+@@ -374,7 +374,7 @@ check_libbpf()
+ check_selinux()
+ # SELinux is a compile time option in the ss utility
+ {
+-	if ${PKG_CONFIG} libselinux --exists; then
++	if [ "${HAVE_SELINUX}" = "y" ] && ${PKG_CONFIG} libselinux --exists; then
+ 		echo "HAVE_SELINUX:=y" >>$CONFIG
+ 		echo "yes"
+ 

libqmi/Config.in

@@ -0,0 +1,31 @@
+menu "Configuration"
+	depends on PACKAGE_libqmi
+
+config LIBQMI_WITH_MBIM_QMUX
+	bool "Include MBIM QMUX service support"
+	default y
+	help
+	  Compile libqmi with QMI-over-MBIM support
+
+config LIBQMI_WITH_QRTR_GLIB
+	bool "Include QRTR support"
+	default y
+	help
+	  Compile libqmi with QRTR support
+
+choice
+	prompt "Select QMI message collection to build"
+	default LIBQMI_COLLECTION_BASIC
+
+	config LIBQMI_COLLECTION_MINIMAL
+		depends on !MODEMMANAGER_WITH_QMI
+		bool "minimal"
+
+	config LIBQMI_COLLECTION_BASIC
+		bool "basic (default)"
+
+	config LIBQMI_COLLECTION_FULL
+		bool "full"
+endchoice
+
+endmenu

modemmanager/Config.in

@@ -0,0 +1,30 @@
+menu "Configuration"
+	depends on PACKAGE_modemmanager
+
+config MODEMMANAGER_WITH_MBIM
+	bool "Include MBIM support"
+	default y
+	help
+	  Compile ModemManager with MBIM support
+
+config MODEMMANAGER_WITH_QMI
+	bool "Include QMI support"
+	default y
+	help
+	  Compile ModemManager with QMI support
+
+config MODEMMANAGER_WITH_QRTR
+	bool "Include QRTR support"
+	default y
+	depends on MODEMMANAGER_WITH_QMI
+	select LIBQMI_WITH_QRTR_GLIB
+	help
+	  Compile ModemManager with QRTR support
+
+config MODEMMANAGER_WITH_AT_COMMAND_VIA_DBUS
+	bool "Allow AT commands via DBus"
+	default n
+	help
+	  Compile ModemManager allowing AT commands without debug flag
+
+endmenu

modemmanager/README.md

@@ -0,0 +1,40 @@
+# OpenWrt ModemManager
+
+## Description
+
+Cellular modem control and connectivity
+
+Optional libraries libmbim and libqmi are available.
+Your modem may require additional kernel modules and/or the usb-modeswitch
+package.
+
+## Usage
+
+Once installed, you can configure the 2G/3G/4G modem connections directly in
+/etc/config/network as in the following example:
+
+    config interface 'broadband'
+        option device      '/sys/devices/platform/soc/20980000.usb/usb1/1-1/1-1.2/1-1.2.1'
+        option proto       'modemmanager'
+        option apn         'ac.vodafone.es'
+        option allowedauth 'pap chap'
+        option username    'vodafone'
+        option password    'vodafone'
+        option pincode     '7423'
+        option iptype      'ipv4'
+        option lowpower    '1'
+        option signalrate  '30'
+
+Only 'device' and 'proto' are mandatory options, the remaining ones are all
+optional.
+
+The 'allowedauth' option allows limiting the list of authentication protocols.
+It is given as a space-separated list of values, including any of the
+following: 'pap', 'chap', 'mschap', 'mschapv2' or 'eap'. It will default to
+allowing all protocols.
+
+The 'iptype' option supports any of these values: 'ipv4', 'ipv6' or 'ipv4v6'.
+It will default to 'ipv4' if not given.
+
+The 'signalrate' option set's the signal refresh rate (in seconds) for the device.
+You can call signal info with command: mmcli -m 0 --signal-get

modemmanager/files/10-report-down

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# SPDX-License-Identifier: CC0-1.0
+# 2022 Aleksander Morgado <aleksander@aleksander.es>
+#
+# Automatically report to netifd that the underlying modem
+# is really disconnected
+#
+# require program name and at least 4 arguments
+[ $# -lt 4 ] && exit 1
+
+MODEM_PATH="$1"
+BEARER_PATH="$2"
+INTERFACE="$3"
+STATE="$4"
+
+[ "${STATE}" = "disconnected" ] || exit 0
+
+. /usr/share/ModemManager/modemmanager.common
+. /lib/netifd/netifd-proto.sh
+INCLUDE_ONLY=1 . /lib/netifd/proto/modemmanager.sh
+
+MODEM_STATUS=$(mmcli --modem="${MODEM_PATH}" --output-keyvalue)
+[ -n "${MODEM_STATUS}" ] || exit 1
+
+MODEM_DEVICE=$(modemmanager_get_field "${MODEM_STATUS}" "modem.generic.device")
+[ -n "${MODEM_DEVICE}" ] || exit 2
+
+CFG=$(mm_get_modem_config "${MODEM_DEVICE}")
+[ -n "${CFG}" ] || exit 3
+
+logger -t "modemmanager" "interface ${CFG} (network device ${INTERFACE}) ${STATE}"
+proto_init_update $INTERFACE 0
+proto_send_update $CFG
+exit 0

modemmanager/files/25-modemmanager-net

@@ -0,0 +1,31 @@
+#!/bin/sh
+# Copyright (C) 2016 Velocloud Inc
+# Copyright (C) 2016 Aleksander Morgado <aleksander@aleksander.es>
+
+# Load common utilities
+. /usr/share/ModemManager/modemmanager.common
+
+# We require a interface name
+[ -n "${INTERFACE}" ] || exit
+
+# Always make sure the rundir exists
+mkdir -m 0755 -p "${MODEMMANAGER_RUNDIR}"
+
+# Report network interface
+mm_log "info" "${ACTION} network interface ${INTERFACE}: event processed"
+mm_report_event "${ACTION}" "${INTERFACE}" "net" "/sys${DEVPATH}"
+
+# Look for an associated cdc-wdm interface
+
+cdcwdm=""
+
+case "${ACTION}" in
+	"add")	  cdcwdm=$(mm_track_cdcwdm "${INTERFACE}") ;;
+	"remove") cdcwdm=$(mm_untrack_cdcwdm "${INTERFACE}") ;;
+esac
+
+# Report cdc-wdm device, if any
+[ -n "${cdcwdm}" ] && {
+	mm_log "info" "${ACTION} cdc interface ${cdcwdm}: custom event processed"
+	mm_report_event "${ACTION}" "${cdcwdm}" "usbmisc" "/sys${DEVPATH}"
+}

modemmanager/files/25-modemmanager-tty

@@ -0,0 +1,16 @@
+#!/bin/sh
+# Copyright (C) 2016 Velocloud Inc
+# Copyright (C) 2016 Aleksander Morgado <aleksander@aleksander.es>
+
+# Load hotplug common utilities
+. /usr/share/ModemManager/modemmanager.common
+
+# We require a device name
+[ -n "$DEVNAME" ] || exit
+
+# Always make sure the rundir exists
+mkdir -m 0755 -p "${MODEMMANAGER_RUNDIR}"
+
+# Report TTY
+mm_log "info" "${ACTION} serial interface ${DEVNAME}: event processed"
+mm_report_event "${ACTION}" "${DEVNAME}" "tty" "/sys${DEVPATH}"

modemmanager/files/25-modemmanager-usb

@@ -0,0 +1,13 @@
+#!/bin/sh
+# Copyright (C) 2019 Aleksander Morgado <aleksander@aleksander.es>
+
+# We need to process only full USB device removal events, we don't
+# want to process specific interface removal events.
+[ "$ACTION" = remove ] || exit
+[ -z "${INTERFACE}" ] || exit
+
+# Load common utilities
+. /usr/share/ModemManager/modemmanager.common
+
+mm_clear_modem_wait_status "/sys${DEVPATH}"
+mm_cleanup_interface_by_sysfspath "/sys${DEVPATH}"

modemmanager/files/25-modemmanager-wwan

@@ -0,0 +1,15 @@
+#!/bin/sh
+# Copyright (C) 2021 Aleksander Morgado <aleksander@aleksander.es>
+
+# Load hotplug common utilities
+. /usr/share/ModemManager/modemmanager.common
+
+# We require a device name
+[ -n "$DEVNAME" ] || exit
+
+# Always make sure the rundir exists
+mkdir -m 0755 -p "${MODEMMANAGER_RUNDIR}"
+
+# Report wwan
+mm_log "info" "${ACTION} wwan control port ${DEVNAME}: event processed"
+mm_report_event "${ACTION}" "${DEVNAME}" "wwan" "/sys${DEVPATH}"

modemmanager/files/modemmanager.proto

@@ -0,0 +1,576 @@
+#!/bin/sh
+# Copyright (C) 2016-2019 Aleksander Morgado <aleksander@aleksander.es>
+
+[ -x /usr/bin/mmcli ] || exit 0
+[ -x /usr/sbin/pppd ] || exit 0
+
+[ -n "$INCLUDE_ONLY" ] || {
+	. /lib/functions.sh
+	. ../netifd-proto.sh
+	. ./ppp.sh
+	init_proto "$@"
+}
+
+cdr2mask ()
+{
+	# Number of args to shift, 255..255, first non-255 byte, zeroes
+	set -- $(( 5 - ($1 / 8) )) 255 255 255 255 $(( (255 << (8 - ($1 % 8))) & 255 )) 0 0 0
+	if [ "$1" -gt 1 ]
+	then
+		shift "$1"
+	else
+		shift
+	fi
+	echo "${1-0}"."${2-0}"."${3-0}"."${4-0}"
+}
+
+# This method expects as first argument a list of key-value pairs, as returned by mmcli --output-keyvalue
+# The second argument must be exactly the name of the field to read
+#
+# Sample output:
+#     $ mmcli -m 0 -K
+#     modem.dbus-path                                 : /org/freedesktop/ModemManager1/Modem/0
+#     modem.generic.device-identifier                 : ed6eff2e3e0f90463da1c2a755b2acacd1335752
+#     modem.generic.manufacturer                      : Dell Inc.
+#     modem.generic.model                             : DW5821e Snapdragon X20 LTE
+#     modem.generic.revision                          : T77W968.F1.0.0.4.0.GC.009\n026
+#     modem.generic.carrier-configuration             : GCF
+#     modem.generic.carrier-configuration-revision    : 08E00009
+#     modem.generic.hardware-revision                 : DW5821e Snapdragon X20 LTE
+#     ....
+modemmanager_get_field() {
+	local list=$1
+	local field=$2
+	local value=""
+
+	[ -z "${list}" ] || [ -z "${field}" ] && return
+
+	# there is always at least a whitespace after each key, and we use that as part of the
+	# key matching we do (e.g. to avoid getting 'modem.generic.state-failed-reason' as a result
+	# when grepping for 'modem.generic.state'.
+	line=$(echo "${list}" | grep "${field} ")
+	value=$(echo ${line#*:})
+
+	# not found?
+	[ -n "${value}" ] || return 2
+
+	# only print value if set
+	[ "${value}" != "--" ] && echo "${value}"
+	return 0
+}
+
+# build a comma-separated list of values from the list
+modemmanager_get_multivalue_field() {
+	local list=$1
+	local field=$2
+	local value=""
+	local length idx item
+
+	[ -z "${list}" ] || [ -z "${field}" ] && return
+
+	length=$(modemmanager_get_field "${list}" "${field}.length")
+	[ -n "${length}" ] || return 0
+	[ "$length" -ge 1 ] || return 0
+
+	idx=1
+	while [ $idx -le "$length" ]; do
+		item=$(modemmanager_get_field "${list}" "${field}.value\[$idx\]")
+		[ -n "${item}" ] && [ "${item}" != "--" ] && {
+			[ -n "${value}" ] && value="${value}, "
+			value="${value}${item}"
+		}
+		idx=$((idx + 1))
+	done
+
+	# nothing built?
+	[ -n "${value}" ] || return 2
+
+	# only print value if set
+	echo "${value}"
+	return 0
+}
+
+modemmanager_cleanup_connection() {
+	local modemstatus="$1"
+
+	local bearercount idx bearerpath
+
+	bearercount=$(modemmanager_get_field "${modemstatus}" "modem.generic.bearers.length")
+
+	# do nothing if no bearers reported
+	[ -n "${bearercount}" ] && [ "$bearercount" -ge 1 ] && {
+		# explicitly disconnect just in case
+		mmcli --modem="${device}" --simple-disconnect >/dev/null 2>&1
+		# and remove all bearer objects, if any found
+		idx=1
+		while [ $idx -le "$bearercount" ]; do
+			bearerpath=$(modemmanager_get_field "${modemstatus}" "modem.generic.bearers.value\[$idx\]")
+			mmcli --modem "${device}" --delete-bearer="${bearerpath}" >/dev/null 2>&1
+			idx=$((idx + 1))
+		done
+	}
+}
+
+modemmanager_connected_method_ppp_ipv4() {
+	local interface="$1"
+	local ttyname="$2"
+	local username="$3"
+	local password="$4"
+	local allowedauth="$5"
+
+	# all auth types are allowed unless a user given list is given
+	local authopts
+	local pap=1
+	local chap=1
+	local mschap=1
+	local mschapv2=1
+	local eap=1
+
+	[ -n "$allowedauth" ] && {
+		pap=0 chap=0 mschap=0 mschapv2=0 eap=0
+		for auth in $allowedauth; do
+			case $auth in
+				"pap") pap=1 ;;
+				"chap") chap=1 ;;
+				"mschap") mschap=1 ;;
+				"mschapv2") mschapv2=1 ;;
+				"eap") eap=1 ;;
+				*) ;;
+			esac
+		done
+	}
+
+	[ $pap -eq 1 ] || append authopts "refuse-pap"
+	[ $chap -eq 1 ] || append authopts "refuse-chap"
+	[ $mschap -eq 1 ] || append authopts "refuse-mschap"
+	[ $mschapv2 -eq 1 ] || append authopts "refuse-mschap-v2"
+	[ $eap -eq 1 ] || append authopts "refuse-eap"
+
+	proto_run_command "${interface}" /usr/sbin/pppd \
+		"${ttyname}" \
+		115200 \
+		nodetach \
+		noaccomp \
+		nobsdcomp \
+		nopcomp \
+		novj \
+		noauth \
+		$authopts \
+		${username:+ user "$username"} \
+		${password:+ password "$password"} \
+		lcp-echo-failure 5 \
+		lcp-echo-interval 15 \
+		lock \
+		crtscts \
+		nodefaultroute \
+		usepeerdns \
+		ipparam "${interface}" \
+		ip-up-script /lib/netifd/ppp-up \
+		ip-down-script /lib/netifd/ppp-down
+}
+
+modemmanager_disconnected_method_ppp_ipv4() {
+	local interface="$1"
+
+	echo "running disconnection (ppp method)"
+
+	[ -n "${ERROR}" ] && {
+		local errorstring
+		errorstring=$(ppp_exitcode_tostring "${ERROR}")
+		case "$ERROR" in
+			0)
+				;;
+			2)
+				proto_notify_error "$interface" "$errorstring"
+				proto_block_restart "$interface"
+				;;
+			*)
+				proto_notify_error "$interface" "$errorstring"
+				;;
+		esac
+	} || echo "pppd result code not given"
+
+	proto_kill_command "$interface"
+}
+
+modemmanager_connected_method_dhcp_ipv4() {
+	local interface="$1"
+	local wwan="$2"
+	local metric="$3"
+
+	proto_init_update "${wwan}" 1
+	proto_set_keep 1
+	proto_send_update "${interface}"
+
+	json_init
+	json_add_string name "${interface}_4"
+	json_add_string ifname "@${interface}"
+	json_add_string proto "dhcp"
+	proto_add_dynamic_defaults
+	[ -n "$metric" ] && json_add_int metric "${metric}"
+	json_close_object
+	ubus call network add_dynamic "$(json_dump)"
+}
+
+modemmanager_connected_method_static_ipv4() {
+	local interface="$1"
+	local wwan="$2"
+	local address="$3"
+	local prefix="$4"
+	local gateway="$5"
+	local mtu="$6"
+	local dns1="$7"
+	local dns2="$8"
+	local metric="$9"
+
+	local mask=""
+
+	[ -n "${address}" ] || {
+		proto_notify_error "${interface}" ADDRESS_MISSING
+		return
+	}
+
+	[ -n "${prefix}" ] || {
+		proto_notify_error "${interface}" PREFIX_MISSING
+		return
+	}
+	mask=$(cdr2mask "${prefix}")
+
+	[ -n "${mtu}" ] && /sbin/ip link set dev "${wwan}" mtu "${mtu}"
+
+	proto_init_update "${wwan}" 1
+	proto_set_keep 1
+	echo "adding IPv4 address ${address}, netmask ${mask}"
+	proto_add_ipv4_address "${address}" "${mask}"
+	[ -n "${gateway}" ] && {
+		echo "adding default IPv4 route via ${gateway}"
+		proto_add_ipv4_route "0.0.0.0" "0" "${gateway}" "${address}"
+	}
+	[ -n "${dns1}" ] && {
+		echo "adding primary DNS at ${dns1}"
+		proto_add_dns_server "${dns1}"
+	}
+	[ -n "${dns2}" ] && {
+		echo "adding secondary DNS at ${dns2}"
+		proto_add_dns_server "${dns2}"
+	}
+	[ -n "$metric" ] && json_add_int metric "${metric}"
+	proto_send_update "${interface}"
+}
+
+modemmanager_connected_method_dhcp_ipv6() {
+	local interface="$1"
+	local wwan="$2"
+	local metric="$3"
+
+	proto_init_update "${wwan}" 1
+	proto_set_keep 1
+	proto_send_update "${interface}"
+
+	json_init
+	json_add_string name "${interface}_6"
+	json_add_string ifname "@${interface}"
+	json_add_string proto "dhcpv6"
+	proto_add_dynamic_defaults
+	json_add_string extendprefix 1 # RFC 7278: Extend an IPv6 /64 Prefix to LAN
+	[ -n "$metric" ] && json_add_int metric "${metric}"
+	json_close_object
+	ubus call network add_dynamic "$(json_dump)"
+}
+
+modemmanager_connected_method_static_ipv6() {
+	local interface="$1"
+	local wwan="$2"
+	local address="$3"
+	local prefix="$4"
+	local gateway="$5"
+	local mtu="$6"
+	local dns1="$7"
+	local dns2="$8"
+	local metric="$9"
+
+	[ -n "${address}" ] || {
+		proto_notify_error "${interface}" ADDRESS_MISSING
+		return
+	}
+
+	[ -n "${prefix}" ] || {
+		proto_notify_error "${interface}" PREFIX_MISSING
+		return
+	}
+
+	[ -n "${mtu}" ] && /sbin/ip link set dev "${wwan}" mtu "${mtu}"
+
+	proto_init_update "${wwan}" 1
+	proto_set_keep 1
+	echo "adding IPv6 address ${address}, prefix ${prefix}"
+	proto_add_ipv6_address "${address}" "128"
+	proto_add_ipv6_prefix "${address}/${prefix}"
+	[ -n "${gateway}" ] && {
+		echo "adding default IPv6 route via ${gateway}"
+		proto_add_ipv6_route "${gateway}" "128"
+		proto_add_ipv6_route "::0" "0" "${gateway}" "" "" "${address}/${prefix}"
+	}
+	[ -n "${dns1}" ] && {
+		echo "adding primary DNS at ${dns1}"
+		proto_add_dns_server "${dns1}"
+	}
+	[ -n "${dns2}" ] && {
+		echo "adding secondary DNS at ${dns2}"
+		proto_add_dns_server "${dns2}"
+	}
+	[ -n "$metric" ] && json_add_int metric "${metric}"
+	proto_send_update "${interface}"
+}
+
+modemmanager_disconnected_method_common() {
+	local interface="$1"
+
+	echo "running disconnection (common)"
+	proto_notify_error "${interface}" MM_DISCONNECT_IN_PROGRESS
+
+	proto_init_update "*" 0
+	proto_send_update "${interface}"
+}
+
+proto_modemmanager_init_config() {
+	available=1
+	no_device=1
+	proto_config_add_string	 device
+	proto_config_add_string	 apn
+	proto_config_add_string	 'allowedauth:list(string)'
+	proto_config_add_string	 username
+	proto_config_add_string	 password
+	proto_config_add_string	 pincode
+	proto_config_add_string	 iptype
+	proto_config_add_string	 plmn
+	proto_config_add_int	 signalrate
+	proto_config_add_boolean lowpower
+	proto_config_add_boolean allow_roaming
+	proto_config_add_defaults
+}
+
+# Append param to the global 'connectargs' variable.
+append_param() {
+	local param="$1"
+
+	[ -z "$param" ] && return
+	[ -z "$connectargs" ] || connectargs="${connectargs},"
+	connectargs="${connectargs}${param}"
+}
+
+proto_modemmanager_setup() {
+	local interface="$1"
+
+	local modempath modemstatus bearercount bearerpath connectargs bearerstatus beareriface
+	local bearermethod_ipv4 bearermethod_ipv6 auth cliauth
+	local operatorname operatorid registration accesstech signalquality
+
+	local device apn allowedauth username password pincode iptype plmn metric signalrate allow_roaming
+
+	local address prefix gateway mtu dns1 dns2
+
+	json_get_vars device apn allowedauth username password pincode iptype plmn metric signalrate allow_roaming
+
+	# validate sysfs path given in config
+	[ -n "${device}" ] || {
+		echo "No device specified"
+		proto_notify_error "${interface}" NO_DEVICE
+		proto_set_available "${interface}" 0
+		return 1
+	}
+
+	# validate that ModemManager is handling the modem at the sysfs path
+	modemstatus=$(mmcli --modem="${device}" --output-keyvalue)
+	modempath=$(modemmanager_get_field "${modemstatus}" "modem.dbus-path")
+	[ -n "${modempath}" ] || {
+		echo "Device not managed by ModemManager"
+		proto_notify_error "${interface}" DEVICE_NOT_MANAGED
+		proto_set_available "${interface}" 0
+		return 1
+	}
+	echo "modem available at ${modempath}"
+
+	# always cleanup before attempting a new connection, just in case
+	modemmanager_cleanup_connection "${modemstatus}"
+
+	# if allowedauth list given, build option string
+	for auth in $allowedauth; do
+		cliauth="${cliauth}${cliauth:+|}$auth"
+	done
+
+	# setup connect args; APN mandatory (even if it may be empty)
+	echo "starting connection with apn '${apn}'..."
+	proto_notify_error "${interface}" MM_CONNECT_IN_PROGRESS
+
+	# setup allow-roaming parameter
+	if [ -n "${allow_roaming}" ] && [ "${allow_roaming}" -eq 0 ];then
+		allow_roaming="no"
+	else
+		# allowed unless a user set the opposite
+		allow_roaming="yes"
+	fi
+
+	# Append options to 'connectargs' variable
+	append_param "apn=${apn}"
+	append_param "allow-roaming=${allow_roaming}"
+	append_param "${iptype:+ip-type=${iptype}}"
+	append_param "${plmn:+operator-id=${plmn}}"
+	append_param "${cliauth:+allowed-auth=${cliauth}}"
+	append_param "${username:+user=${username}}"
+	append_param "${password:+password=${password}}"
+	append_param "${pincode:+pin=${pincode}}"
+
+	mmcli --modem="${device}" --timeout 120 --simple-connect="${connectargs}" || {
+		proto_notify_error "${interface}" MM_CONNECT_FAILED
+		proto_block_restart "${interface}"
+		return 1
+	}
+
+	# check if Signal refresh rate is set
+	if [ -n "${signalrate}" ] && [ "${signalrate}" -eq "${signalrate}" ] 2>/dev/null; then
+		echo "setting signal refresh rate to ${signalrate} seconds"
+		mmcli --modem="${device}" --signal-setup="${signalrate}"
+	else
+		echo "signal refresh rate is not set"
+	fi
+
+	# log additional useful information
+	modemstatus=$(mmcli --modem="${device}" --output-keyvalue)
+	operatorname=$(modemmanager_get_field "${modemstatus}" "modem.3gpp.operator-name")
+	[ -n "${operatorname}" ] && echo "network operator name: ${operatorname}"
+	operatorid=$(modemmanager_get_field "${modemstatus}" "modem.3gpp.operator-code")
+	[ -n "${operatorid}" ] && echo "network operator MCCMNC: ${operatorid}"
+	registration=$(modemmanager_get_field "${modemstatus}" "modem.3gpp.registration-state")
+	[ -n "${registration}" ] && echo "registration type: ${registration}"
+	accesstech=$(modemmanager_get_multivalue_field "${modemstatus}" "modem.generic.access-technologies")
+	[ -n "${accesstech}" ] && echo "access technology: ${accesstech}"
+	signalquality=$(modemmanager_get_field "${modemstatus}" "modem.generic.signal-quality.value")
+	[ -n "${signalquality}" ] && echo "signal quality: ${signalquality}%"
+
+	# we won't like it if there are more than one bearers, as that would mean the
+	# user manually created them, and that's unsupported by this proto
+	bearercount=$(modemmanager_get_field "${modemstatus}" "modem.generic.bearers.length")
+	[ -n "${bearercount}" ] && [ "$bearercount" -eq 1 ] || {
+		proto_notify_error "${interface}" INVALID_BEARER_LIST
+		return 1
+	}
+
+	# load connected bearer information
+	bearerpath=$(modemmanager_get_field "${modemstatus}" "modem.generic.bearers.value\[1\]")
+	bearerstatus=$(mmcli --bearer "${bearerpath}" --output-keyvalue)
+
+	# load network interface and method information
+	beareriface=$(modemmanager_get_field "${bearerstatus}" "bearer.status.interface")
+	bearermethod_ipv4=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv4-config.method")
+	bearermethod_ipv6=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv6-config.method")
+
+	# setup IPv4
+	[ -n "${bearermethod_ipv4}" ] && {
+		echo "IPv4 connection setup required in interface ${interface}: ${bearermethod_ipv4}"
+		case "${bearermethod_ipv4}" in
+		"dhcp")
+			modemmanager_connected_method_dhcp_ipv4 "${interface}" "${beareriface}" "${metric}"
+			;;
+		"static")
+			address=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv4-config.address")
+			prefix=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv4-config.prefix")
+			gateway=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv4-config.gateway")
+			mtu=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv4-config.mtu")
+			dns1=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv4-config.dns.value\[1\]")
+			dns2=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv4-config.dns.value\[2\]")
+			modemmanager_connected_method_static_ipv4 "${interface}" "${beareriface}" "${address}" "${prefix}" "${gateway}" "${mtu}" "${dns1}" "${dns2}" "${metric}"
+			;;
+		"ppp")
+			modemmanager_connected_method_ppp_ipv4 "${interface}" "${beareriface}" "${username}" "${password}" "${allowedauth}"
+			;;
+		*)
+			proto_notify_error "${interface}" UNKNOWN_METHOD
+			return 1
+			;;
+		esac
+	}
+
+	# setup IPv6
+	# note: if using ipv4v6, both IPv4 and IPv6 settings will have the same MTU and metric values reported
+	[ -n "${bearermethod_ipv6}" ] && {
+		echo "IPv6 connection setup required in interface ${interface}: ${bearermethod_ipv6}"
+		case "${bearermethod_ipv6}" in
+		"dhcp")
+			modemmanager_connected_method_dhcp_ipv6 "${interface}" "${beareriface}" "${metric}"
+			;;
+		"static")
+			address=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv6-config.address")
+			prefix=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv6-config.prefix")
+			gateway=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv6-config.gateway")
+			mtu=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv6-config.mtu")
+			dns1=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv6-config.dns.value\[1\]")
+			dns2=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv6-config.dns.value\[2\]")
+			modemmanager_connected_method_static_ipv6 "${interface}" "${beareriface}" "${address}" "${prefix}" "${gateway}" "${mtu}" "${dns1}" "${dns2}" "${metric}"
+			;;
+		"ppp")
+			proto_notify_error "${interface}" "unsupported method"
+			return 1
+			;;
+		*)
+			proto_notify_error "${interface}" UNKNOWN_METHOD
+			return 1
+			;;
+		esac
+	}
+
+	return 0
+}
+
+proto_modemmanager_teardown() {
+	local interface="$1"
+
+	local modemstatus bearerpath errorstring
+	local bearermethod_ipv4 bearermethod_ipv6
+
+	local device lowpower iptype
+	json_get_vars device lowpower iptype
+
+	echo "stopping network"
+
+	# load connected bearer information, just the first one should be ok
+	modemstatus=$(mmcli --modem="${device}" --output-keyvalue)
+	bearerpath=$(modemmanager_get_field "${modemstatus}" "modem.generic.bearers.value\[1\]")
+	[ -n "${bearerpath}" ] || {
+		echo "couldn't load bearer path: disconnecting anyway"
+		mmcli --modem="${device}" --simple-disconnect >/dev/null 2>&1
+		return
+	}
+
+	# load bearer connection methods
+	bearerstatus=$(mmcli --bearer "${bearerpath}" --output-keyvalue)
+	bearermethod_ipv4=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv4-config.method")
+	[ -n "${bearermethod_ipv4}" ] &&
+		echo "IPv4 connection teardown required in interface ${interface}: ${bearermethod_ipv4}"
+	bearermethod_ipv6=$(modemmanager_get_field "${bearerstatus}" "bearer.ipv6-config.method")
+	[ -n "${bearermethod_ipv6}" ] &&
+		echo "IPv6 connection teardown required in interface ${interface}: ${bearermethod_ipv6}"
+
+	# disconnection handling only requires special treatment in IPv4/PPP
+	[ "${bearermethod_ipv4}" = "ppp" ] && modemmanager_disconnected_method_ppp_ipv4 "${interface}"
+	modemmanager_disconnected_method_common "${interface}"
+
+	# disconnect
+	mmcli --modem="${device}" --simple-disconnect ||
+		proto_notify_error "${interface}" DISCONNECT_FAILED
+
+	# disable
+	mmcli --modem="${device}" --disable
+	proto_notify_error "${interface}" MM_MODEM_DISABLED
+
+	# low power, only if requested
+	[ "${lowpower:-0}" -lt 1 ] ||
+		mmcli --modem="${device}" --set-power-state-low
+
+	proto_init_update "*" 0
+	proto_send_update "$interface"
+}
+
+[ -n "$INCLUDE_ONLY" ] || {
+	add_protocol modemmanager
+}