Skip ip rule errors for now

Signed-off-by: Adrien Gallouët <adrien@gallouet.fr>

.build.sh

@@ -1,18 +0,0 @@
-#!/bin/sh
-
-export CC="gcc -static"
-
-git clone https://github.com/jedisct1/libsodium --depth=1 --branch stable
-cd libsodium || exit 1
-./autogen.sh && ./configure --enable-minimal --disable-shared --prefix=/usr && make install
-cd ..
-
-./autogen.sh && ./configure && make
-[ -x glorytun ] || exit 1
-
-mkdir -p deploy
-
-cp glorytun deploy/glorytun-$(cat VERSION)-$(uname -m).debug.bin
-
-strip -s glorytun
-cp glorytun deploy/glorytun-$(cat VERSION)-$(uname -m).bin

.gitignore

@@ -11,3 +11,5 @@ build-aux
 .deps
 .dirstamp
 glorytun
+build*
+VERSION

Makefile.am

@@ -17,9 +17,7 @@ glorytun_SOURCES = \
     src/iface.c \
     src/iface.h \
     src/db.c \
-    src/db.h
-
-glorytun_SOURCES += \
+    src/db.h \
     mud/mud.h \
     mud/mud.c
 
@@ -27,5 +25,13 @@ EXTRA_DIST = \
     LICENSE \
     README.md \
     VERSION \
+    systemd/glorytun-client.network \
+    systemd/glorytun-run \
+    systemd/glorytun-setup \
+    systemd/glorytun.network \
+    systemd/glorytun@.service.in \
+    mud/LICENSE \
+    mud/README.md \
+    meson.build \
     autogen.sh \
     version.sh

README.md

@@ -1,18 +1,53 @@
-# π₁(Glorytun)=0
+# Glorytun
 
 Small, Simple and Stupid VPN over [mud](https://github.com/angt/mud).
 
-#### Build and Install
+### Build and Install
 
 Glorytun depends on [libsodium](https://github.com/jedisct1/libsodium) version >= 1.0.4.
 
-To build and install the latest version:
+On Ubuntu, the following command should be sufficient:
 
-    $ git clone https://github.com/angt/glorytun --recursive --branch mud
+    $ sudo apt-get install meson libsodium-dev pkg-config
+
+Grab the latest release from github:
+
+    $ git clone https://github.com/angt/glorytun --recursive
     $ cd glorytun
-    $ ./autogen.sh
-    $ ./configure
-    $ make
-    # make install
+
+To build and install the latest version with [meson](http://mesonbuild.com):
+
+    $ meson build
+    $ sudo ninja -C build install
+
+The more classical autotools suite is also available.
+
+### Easy setup with systemd
+
+Just call `glorytun-setup` and follow the instructions.
+
+First, setup the server:
+
+    $ sudo glorytun-setup
+    Config filename (tun0):
+    Server ip (enter for server conf):
+    Server key (enter to generate a new one):
+    Your new key: NEW_KEY
+    Start glorytun now ? (enter to skip): y
+
+Copy the new generated key and use it when configuring the client:
+
+    $ sudo glorytun-setup
+    Config filename (tun0):
+    Server ip (enter for server conf): SERVER_IP
+    Server key (enter to generate a new one): NEW_KEY
+    Start glorytun now ? (enter to skip): y
+
+You can check easily if it works by looking at your public ip.
+To stop the service:
+
+    $ sudo systemctl stop glorytun@tun0
+
+---
 
 For feature requests and bug reports, please create an [issue](https://github.com/angt/glorytun/issues).

configure.ac

@@ -8,7 +8,7 @@ AC_DEFINE_UNQUOTED([VERSION_MAJOR], [m4_esyscmd([./version.sh major])])
 AC_CONFIG_SRCDIR([src/common.h])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
-AM_INIT_AUTOMAKE([1.9 -Wall -Werror foreign tar-ustar subdir-objects])
+AM_INIT_AUTOMAKE([1.12 -Wall -Werror foreign tar-ustar subdir-objects])
 AM_DEP_TRACK
 AM_SILENT_RULES([yes])
 AM_PROG_CC_C_O

m4/pkg.m4

@@ -1,6 +1,6 @@
-dnl pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
-dnl serial 11 (pkg-config-0.29)
-dnl
+# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
+# serial 12 (pkg-config-0.29.2)
+
 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
 dnl
@@ -41,7 +41,7 @@ dnl
 dnl See the "Since" comment for each macro you use to see what version
 dnl of the macros you require.
 m4_defun([PKG_PREREQ],
-[m4_define([PKG_MACROS_VERSION], [0.29])
+[m4_define([PKG_MACROS_VERSION], [0.29.2])
 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
     [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
 ])dnl PKG_PREREQ
@@ -142,7 +142,7 @@ AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
 
 pkg_failed=no
-AC_MSG_CHECKING([for $1])
+AC_MSG_CHECKING([for $2])
 
 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
@@ -152,11 +152,11 @@ and $1[]_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.])
 
 if test $pkg_failed = yes; then
-   	AC_MSG_RESULT([no])
+        AC_MSG_RESULT([no])
         _PKG_SHORT_ERRORS_SUPPORTED
         if test $_pkg_short_errors_supported = yes; then
 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
-        else 
+        else
 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
@@ -173,7 +173,7 @@ installed software in a non-standard prefix.
 _PKG_TEXT])[]dnl
         ])
 elif test $pkg_failed = untried; then
-     	AC_MSG_RESULT([no])
+        AC_MSG_RESULT([no])
 	m4_default([$4], [AC_MSG_FAILURE(
 [The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full

meson.build

@@ -1,10 +1,49 @@
 project('glorytun', 'c',
-    version: run_command('./version.sh').stdout()
+    version: run_command('./version.sh').stdout(),
+    license: 'BSD-3-Clause',
+    default_options : [ 'buildtype=debugoptimized' ]
 )
 
+prefix = get_option('prefix')
+bindir = join_paths(prefix, get_option('bindir'))
+
+conf_data = configuration_data()
+conf_data.set('prefix', prefix)
+conf_data.set('bindir', bindir)
+
 add_global_arguments('-DPACKAGE_VERSION="'+meson.project_version()+'"', language : 'c')
 
-executable('glorytun', install: true,
-    sources: [ 'src/main.c', 'src/common.c', 'src/option.c', 'src/tun.c', 'src/iface.c', 'mud/mud.c' ],
-    dependencies: [ dependency('libsodium', version : '>=1.0.4') ]
-)
+src = [
+    'src/common.c',
+    'src/iface.c',
+    'src/option.c',
+    'src/tun.c',
+    'mud/mud.c',
+    'src/main.c'
+]
+
+deps = [
+    dependency('libsodium', version : '>=1.0.4')
+]
+
+executable('glorytun', install: true, sources: src, dependencies: deps)
+
+systemd = dependency('systemd', required: false)
+
+if systemd.found()
+  systemdutildir = systemd.get_pkgconfig_variable('systemdutildir')
+  configure_file(
+      input: 'systemd/glorytun@.service.in',
+      output: 'glorytun@.service',
+      configuration: conf_data,
+      install_dir: join_paths(systemdutildir, 'system')
+  )
+  install_data('systemd/glorytun.network',
+      install_dir: join_paths(systemdutildir, 'network'))
+  install_data('systemd/glorytun-client.network',
+      install_dir: join_paths(systemdutildir, 'network'))
+  install_data('systemd/glorytun-run',
+      install_dir: bindir)
+  install_data('systemd/glorytun-setup',
+      install_dir: bindir)
+endif

src/iface.c

@@ -1,6 +1,7 @@
 #include "common.h"
 
 #include "str.h"
+#include "iface.h"
 
 #include <sys/ioctl.h>
 #include <net/if.h>

src/main.c

@@ -15,6 +15,7 @@
 #include <stdio.h>
 #include <sys/socket.h>
 #include <sys/time.h>
+#include <netinet/in.h>
 
 #include <arpa/inet.h>
 #include <netdb.h>

systemd/glorytun-client.network

@@ -0,0 +1,10 @@
+[Match]
+Name=gtc-*
+
+[Network]
+Description=Glorytun client device
+DHCP=ipv4
+
+[DHCP]
+CriticalConnection=yes
+RouteTable=200

systemd/glorytun-run

@@ -0,0 +1,37 @@
+#!/bin/sh
+
+set -e
+
+if [ ! -f "$1" ]; then
+	echo "usage: $(basename "$0") FILE"
+	exit 1
+fi
+
+. "$(readlink -f "$1")"
+
+DEV="gt${HOST:+c}-$(basename "$1")"
+
+# Setting BIND is like going to 'expert mode'
+# This helper is pretty stupid and still needs some work
+if [ -n "$HOST" ]; then
+	if [ -z "$PREF" ]; then
+		PREF=$(ip rule | awk '/from all lookup main/{print $1; exit}' | tr -d :)
+		PREF=$((PREF-1))
+	fi
+	if [ -z "$BIND" ]; then
+		BIND=$(ip route get "$HOST" | awk '/src/{getline;print $0}' RS=' ')
+		ip rule add from "$BIND" table main pref "$((PREF-1))" || true
+	fi
+	ip rule add from all table 200 pref "$PREF" || true
+fi
+
+exec glorytun \
+	v4only \
+	keyfile "$1".key \
+	dev "$DEV" \
+	${HOST:+host "$HOST"} \
+	${PORT:+port "$PORT"} \
+	${BIND:+bind "$BIND"} \
+	${BIND_PORT:+bind-port "$BIND_PORT"} \
+	${MTU:+mtu "$MTU"} \
+	${MTU_AUTO:+mtu-auto}

systemd/glorytun-setup

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+set -e
+
+_ask() {
+	printf "%s: " "$1"
+	read -r "$2"
+}
+
+_ask "Config filename (tun0)" NAME
+NAME=${NAME:-tun0}
+
+if [ -f /etc/glorytun/"$NAME" ]; then
+	echo "This config already exit!"
+	exit 1
+fi
+
+_ask "Server ip (enter for server conf)" HOST
+
+_ask "Server key (enter to generate a new one)" KEY
+if [ -z "$KEY" ]; then
+	KEY=$(glorytun keygen)
+	echo "Your new key: $KEY"
+fi
+
+# install files
+mkdir -p /etc/glorytun
+
+cat > /etc/glorytun/"$NAME" <<EOF
+${HOST:+HOST="$HOST"}
+MTU_AUTO=yes
+EOF
+
+( umask 077; echo "$KEY" > /etc/glorytun/"$NAME".key )
+
+# start services
+_ask "Start glorytun now ? (enter to skip)" START
+case "$START" in y*|Y*)
+	systemctl restart systemd-networkd
+	systemctl start glorytun@"$NAME" ;;
+esac

systemd/glorytun.network

@@ -0,0 +1,14 @@
+[Match]
+Name=gt-*
+
+[Network]
+Description=Glorytun server device
+Address=0.0.0.0/24
+DHCPServer=yes
+IPMasquerade=yes
+
+[DHCPServer]
+PoolOffset=2
+PoolSize=1
+EmitDNS=yes
+DNS=9.9.9.9

systemd/glorytun@.service.in

@@ -0,0 +1,12 @@
+[Unit]
+Description=Glorytun on %I
+After=network.target
+
+[Service]
+Type=simple
+Restart=always
+ExecStart=@bindir@/glorytun-run /etc/glorytun/%i
+CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_RAW
+
+[Install]
+WantedBy=multi-user.target