build: qualify plugin dir name with a version string

This makes package updates more robust, avoiding in-place replaces of
the plugins.

Previously, if an upgrade transaction was terminated, NetworkManager
library could end up being of a different version than the plugins.
If the user was unfortunate enough to connect using a connection that
required a plugin (say, Wi-Fi), he would be left without a network
connection making it somewhat inconvenient to recover from the botched
upgrade.

This makes the whole situation a little bit less sad.

The VPN plugins are kept where they always have been -- the path is not
qualified with a version number.

Makefile.am

@@ -20,7 +20,7 @@ sbin_PROGRAMS =
 bin_PROGRAMS =
 libexec_PROGRAMS =
 lib_LTLIBRARIES =
-pkglib_LTLIBRARIES =
+plugin_LTLIBRARIES =
 core_plugins =
 service_DATA =
 man_MANS =
@@ -73,6 +73,8 @@ examplesdir = $(docdir)/examples
 rundir=$(runstatedir)/NetworkManager
 statedir=$(localstatedir)/lib/NetworkManager
 
+plugindir=$(pkglibdir)/$(NM_DIST_VERSION)
+
 dbusactivationdir = $(datadir)/dbus-1/system-services
 
 servicedir = $(datadir)/dbus-1/system-services
@@ -578,7 +580,8 @@ libnm_core_libnm_core_la_CPPFLAGS = \
 	-DLOCALEDIR=\"$(datadir)/locale\" \
 	-DNMCONFDIR=\"$(nmconfdir)\" \
 	-DNMLIBDIR=\"$(nmlibdir)\" \
-	-DNMPLUGINDIR=\"$(pkglibdir)\" \
+	-DNMVPNDIR=\"$(pkglibdir)\" \
+	-DNMPLUGINDIR=\"$(plugindir)\" \
 	-DLIBEXECDIR=\"$(libexecdir)\" \
 	$(NULL)
 
@@ -1190,7 +1193,7 @@ src_cppflags = \
 	\
 	-DNMCONFDIR=\"$(nmconfdir)\" \
 	-DNMLOCALEDIR=\"$(datadir)/locale\" \
-	-DNMPLUGINDIR=\"$(pkglibdir)\" \
+	-DNMPLUGINDIR=\"$(plugindir)\" \
 	-DNMRUNDIR=\"$(nmrundir)\" \
 	-DNMSTATEDIR=\"$(nmstatedir)\" \
 	-DNMLIBDIR=\"$(nmlibdir)\" \
@@ -4745,7 +4748,7 @@ check_PROGRAMS += $(check_programs) $(check_programs_norun)
 check_LTLIBRARIES += $(check_ltlibraries)
 endif
 
-pkglib_LTLIBRARIES += $(core_plugins)
+plugin_LTLIBRARIES += $(core_plugins)
 
 TESTS += $(check_programs)
 
@@ -4845,7 +4848,7 @@ install-data-hook: $(install_data_hook)
 	$(mkinstalldirs) -m 0755 $(DESTDIR)$(nmlibdir)/conf.d
 	$(mkinstalldirs) -m 0755 $(DESTDIR)$(nmlibdir)/VPN
 	$(mkinstalldirs) -m 0700 $(DESTDIR)$(nmstatedir)
-	$(mkinstalldirs) -m 0755 $(DESTDIR)$(pkglibdir)
+	$(mkinstalldirs) -m 0755 $(DESTDIR)$(plugindir)
 
 uninstall-hook: $(uninstall_hook)
 

configure.ac

@@ -183,10 +183,9 @@ dnl
 AC_ARG_WITH(dist-version,
             AS_HELP_STRING([--with-dist-version=<NM-distribution-version>],
                            [Define the NM''s distribution version string]),
-            ac_distver=$withval, ac_distver="")
-if ! test x"$ac_distver" = x""; then
-	AC_DEFINE_UNQUOTED(NM_DIST_VERSION, "$ac_distver", [Define the distribution version string])
-fi
+            ac_distver=$withval, ac_distver=$NM_VERSION)
+AC_DEFINE_UNQUOTED(NM_DIST_VERSION, "$ac_distver", [Define the distribution version string])
+AC_SUBST(NM_DIST_VERSION, "$ac_distver")
 
 AC_ARG_ENABLE(wifi, AS_HELP_STRING([--enable-wifi], [enable Wi-Fi support]))
 if test "${enable_wifi}" != "no"; then

contrib/fedora/rpm/NetworkManager.spec

@@ -28,6 +28,7 @@
 
 %global systemd_dir %{_prefix}/lib/systemd/system
 %global nmlibdir %{_prefix}/lib/%{name}
+%global nmplugindir %{_libdir}/%{name}/%{version}-%{release}
 
 %global _hardened_build 1
 
@@ -534,7 +535,7 @@ ln -s ../10-ifcfg-rh-routes.sh %{buildroot}%{_sysconfdir}/%{name}/dispatcher.d/n
 
 rm -f %{buildroot}%{_libdir}/*.la
 rm -f %{buildroot}%{_libdir}/pppd/%{ppp_version}/*.la
-rm -f %{buildroot}%{_libdir}/NetworkManager/*.la
+rm -f %{buildroot}%{nmplugindir}/*.la
 
 # Ensure the documentation timestamps are constant to avoid multilib conflicts
 find %{buildroot}%{_datadir}/gtk-doc -exec touch --reference configure.ac '{}' \+
@@ -610,8 +611,9 @@ fi
 %{_libexecdir}/nm-dhcp-helper
 %{_libexecdir}/nm-dispatcher
 %{_libexecdir}/nm-iface-helper
-%dir %{_libdir}/NetworkManager
-%{_libdir}/NetworkManager/libnm-settings-plugin*.so
+%dir %{_libdir}/%{name}
+%dir %{nmplugindir}
+%{nmplugindir}/libnm-settings-plugin*.so
 %if %{with nmtui}
 %exclude %{_mandir}/man1/nmtui*
 %endif
@@ -641,35 +643,35 @@ fi
 
 %if %{with adsl}
 %files adsl
-%{_libdir}/%{name}/libnm-device-plugin-adsl.so
+%{nmplugindir}/libnm-device-plugin-adsl.so
 %else
-%exclude %{_libdir}/%{name}/libnm-device-plugin-adsl.so
+%exclude %{nmplugindir}/libnm-device-plugin-adsl.so
 %endif
 
 %if %{with bluetooth}
 %files bluetooth
-%{_libdir}/%{name}/libnm-device-plugin-bluetooth.so
+%{nmplugindir}/libnm-device-plugin-bluetooth.so
 %endif
 
 %if %{with team}
 %files team
-%{_libdir}/%{name}/libnm-device-plugin-team.so
+%{nmplugindir}/libnm-device-plugin-team.so
 %endif
 
 %if %{with wifi}
 %files wifi
-%{_libdir}/%{name}/libnm-device-plugin-wifi.so
+%{nmplugindir}/libnm-device-plugin-wifi.so
 %endif
 
 %if %{with wwan}
 %files wwan
-%{_libdir}/%{name}/libnm-device-plugin-wwan.so
-%{_libdir}/%{name}/libnm-wwan.so
+%{nmplugindir}/libnm-device-plugin-wwan.so
+%{nmplugindir}/libnm-wwan.so
 %endif
 
 %if %{with ovs}
 %files ovs
-%{_libdir}/%{name}/libnm-device-plugin-ovs.so
+%{nmplugindir}/libnm-device-plugin-ovs.so
 %{systemd_dir}/NetworkManager.service.d/NetworkManager-ovs.conf
 %{_mandir}/man7/nm-openvswitch.7*
 %endif
@@ -677,7 +679,7 @@ fi
 %if %{with ppp}
 %files ppp
 %{_libdir}/pppd/%{ppp_version}/nm-pppd-plugin.so
-%{_libdir}/%{name}/libnm-ppp-plugin.so
+%{nmplugindir}/libnm-ppp-plugin.so
 %endif
 
 %if %{with libnm_glib}

libnm-core/meson.build

@@ -141,7 +141,8 @@ cflags = [
   '-DLOCALEDIR="@0@"'.format(nm_localedir),
   '-DNMCONFDIR="@0@"'.format(nm_pkgconfdir),
   '-DNMLIBDIR="@0@"'.format(nm_pkglibdir),
-  '-DNMPLUGINDIR="@0@"'.format(nm_plugindir)
+  '-DNMPLUGINDIR="@0@"'.format(nm_plugindir),
+  '-DNMVPNDIR="@0@"'.format(nm_vpndir)
 ]
 
 if enable_json_validation

libnm-core/nm-vpn-editor-plugin.c

@@ -262,7 +262,7 @@ _nm_vpn_editor_plugin_load (const char *plugin_name,
 	if (do_file_checks) {
 		if (   !strchr (plugin_name, '/')
 		    && !g_str_has_suffix (plugin_name, ".la")) {
-			plugin_filename_free = g_module_build_path (NMPLUGINDIR, plugin_name);
+			plugin_filename_free = g_module_build_path (NMVPNDIR, plugin_name);
 			plugin_filename = plugin_filename_free;
 		}
 	}

libnm-glib/meson.build

@@ -287,7 +287,7 @@ pkg.generate(
   variables: [
     'exec_prefix=${prefix}',
     'libgnome_serverdir=' + nm_libexecdir,
-    'plugindir=' + nm_plugindir,
+    'plugindir=' + nm_vpndir,
     'configdir=' + nm_pkgconfdir
   ]
 )

meson.build

@@ -25,6 +25,12 @@ nm_id_prefix = 'NM'
 
 nm_gir_version = '1.0'
 
+# Distribution version string
+dist_version = get_option('dist_version')
+if dist_version == ''
+  dist_version = nm_version
+endif
+
 nm_prefix = get_option('prefix')
 nm_bindir = join_paths(nm_prefix, get_option('bindir'))
 nm_datadir = join_paths(nm_prefix, get_option('datadir'))
@@ -45,7 +51,8 @@ nm_pkgincludedir = join_paths(nm_includedir, nm_name)
 nm_pkglibdir = join_paths(nm_prefix, 'lib', nm_name)
 nm_pkgrundir = join_paths(nm_runstatedir, nm_name)
 nm_pkgstatedir = join_paths(nm_localstatedir, nm_name)
-nm_plugindir = join_paths(nm_libdir, nm_name)
+nm_vpndir = join_paths(nm_libdir, nm_name)
+nm_plugindir = join_paths(nm_libdir, nm_name, dist_version)
 
 libnm_name = 'libnm'
 
@@ -259,11 +266,7 @@ if config_plugins_default == ''
 endif
 config_h.set_quoted('NM_CONFIG_DEFAULT_MAIN_PLUGINS', config_plugins_default)
 
-# Distribution version string
-dist_version = get_option('dist_version')
-if dist_version != ''
-  config_h.set_quoted('NM_DIST_VERSION', dist_version)
-endif
+config_h.set_quoted('NM_DIST_VERSION', dist_version)
 
 enable_wifi = get_option('wifi')
 config_h.set10('WITH_WIFI', enable_wifi)
@@ -885,6 +888,7 @@ output += '  nmlibdir: ' + nm_pkglibdir + '\n'
 output += '  nmdatadir: ' + nm_pkgdatadir + '\n'
 output += '  nmstatedir: ' + nm_pkgstatedir + '\n'
 output += '  nmrundir: ' + nm_pkgrundir + '\n'
+output += '  nmvpndir: ' + nm_vpndir + '\n'
 output += '  nmplugindir: ' + nm_plugindir + '\n'
 output += '\nPlatform:\n'
 output += '  session tracking: ' + ','.join(session_trackers) + '\n'