Add IP address address ACL representation and parser

Add a config directive parser that takes multiple space separated IPv4
or IPv6 addresses with optional netmasks in CIDR notation rvalue and
puts a parsed version of it to linked list of IPAddressAccessItem objects.
The code actually using this will be added later.

1 files changed, 89 insertions, 87 deletions

diff --git a/src/core/meson.build b/src/core/meson.build
index a9d4c3d73..2790e431f 100644
--- a/src/core/meson.build
+++ b/src/core/meson.build
@@ -1,115 +1,117 @@
 #if 0 /// elogind has only two of the parts here in it...
 # libcore_la_sources = '''
-#         unit.c
-#         unit.h
-#         unit-printf.c
-#         unit-printf.h
-#         job.c
-#         job.h
-#         manager.c
-#         manager.h
-#         transaction.c
-#         transaction.h
-#         load-fragment.c
-#         load-fragment.h
-#         service.c
-#         service.h
-#         socket.c
-#         socket.h
-#         target.c
-#         target.h
-#         device.c
-#         device.h
-#         mount.c
-#         mount.h
+#         audit-fd.c
+#         audit-fd.h
 #         automount.c
 #         automount.h
-#         swap.c
-#         swap.h
-#         timer.c
-#         timer.h
-#         path.c
-#         path.h
-#         slice.c
-#         slice.h
-#         scope.c
-#         scope.h
-#         load-dropin.c
-#         load-dropin.h
-#         execute.c
-#         execute.h
-#         dynamic-user.c
-#         dynamic-user.h
-#         kill.c
-#         kill.h
-#         dbus.c
-#         dbus.h
-#         dbus-manager.c
-#         dbus-manager.h
-#         dbus-unit.c
-#         dbus-unit.h
+#         cgroup.c
+#         cgroup.h
+#         dbus-automount.c
+#         dbus-automount.h
+#         dbus-cgroup.c
+#         dbus-cgroup.h
+#         dbus-device.c
+#         dbus-device.h
+#         dbus-execute.c
+#         dbus-execute.h
 #         dbus-job.c
 #         dbus-job.h
+#         dbus-kill.c
+#         dbus-kill.h
+#         dbus-manager.c
+#         dbus-manager.h
+#         dbus-mount.c
+#         dbus-mount.h
+#         dbus-path.c
+#         dbus-path.h
+#         dbus-scope.c
+#         dbus-scope.h
 #         dbus-service.c
 #         dbus-service.h
+#         dbus-slice.c
+#         dbus-slice.h
 #         dbus-socket.c
 #         dbus-socket.h
-#         dbus-target.c
-#         dbus-target.h
-#         dbus-device.c
-#         dbus-device.h
-#         dbus-mount.c
-#         dbus-mount.h
-#         dbus-automount.c
-#         dbus-automount.h
 #         dbus-swap.c
 #         dbus-swap.h
+#         dbus-target.c
+#         dbus-target.h
 #         dbus-timer.c
 #         dbus-timer.h
-#         dbus-path.c
-#         dbus-path.h
-#         dbus-slice.c
-#         dbus-slice.h
-#         dbus-scope.c
-#         dbus-scope.h
-#         dbus-execute.c
-#         dbus-execute.h
-#         dbus-kill.c
-#         dbus-kill.h
-#         dbus-cgroup.c
-#         dbus-cgroup.h
-#         cgroup.c
-#         cgroup.h
-#         selinux-access.c
-#         selinux-access.h
-#         selinux-setup.c
-#         selinux-setup.h
-#         smack-setup.c
-#         smack-setup.h
+#         dbus-unit.c
+#         dbus-unit.h
+#         dbus.c
+#         dbus.h
+#         device.c
+#         device.h
+#         dynamic-user.c
+#         dynamic-user.h
+#         emergency-action.c
+#         emergency-action.h
+#         execute.c
+#         execute.h
+#         hostname-setup.c
+#         hostname-setup.h
 #         ima-setup.c
 #         ima-setup.h
-#         locale-setup.h
+#         ip-address-access.c
+#         ip-address-access.h
+#         job.c
+#         job.h
+#         kill.c
+#         kill.h
+#         killall.c
+#         killall.h
+#         kmod-setup.c
+#         kmod-setup.h
+#         load-dropin.c
+#         load-dropin.h
+#         load-fragment.c
+#         load-fragment.h
 #         locale-setup.c
-#         hostname-setup.c
-#         hostname-setup.h
+#         locale-setup.h
+#         loopback-setup.c
+#         loopback-setup.h
 #         machine-id-setup.c
 #         machine-id-setup.h
+#         manager.c
+#         manager.h
 #         mount-setup.c
 #         mount-setup.h
-#         kmod-setup.c
-#         kmod-setup.h
-#         loopback-setup.h
-#         loopback-setup.c
+#         mount.c
+#         mount.h
 #         namespace.c
 #         namespace.h
-#         killall.h
-#         killall.c
-#         audit-fd.c
-#         audit-fd.h
+#         path.c
+#         path.h
+#         scope.c
+#         scope.h
+#         selinux-access.c
+#         selinux-access.h
+#         selinux-setup.c
+#         selinux-setup.h
+#         service.c
+#         service.h
 #         show-status.c
 #         show-status.h
-#         emergency-action.c
-#         emergency-action.h
+#         slice.c
+#         slice.h
+#         smack-setup.c
+#         smack-setup.h
+#         socket.c
+#         socket.h
+#         swap.c
+#         swap.h
+#         target.c
+#         target.h
+#         timer.c
+#         timer.h
+#         transaction.c
+#         transaction.h
+#         unit-printf.c
+#         unit-printf.h
+#         unit.c
+#         unit.h
 # '''.split()
 #else
 libcore_la_sources = files('''