build: ship all config files with --enable-datafiles

Currently we ship only the dbus/systemd policy files and omit the other
four - /etc/bluetooth/{main,mesh-main,input,network}.conf.

Outside of those files, there is no documentation what the defaults are
and the other possible options. A number of distributions (Arch, Gentoo,
Fedora) have opted to manually copy those into the package. Alas this
does not scale and leaves other distros at disadvantage, in a sense.

Note: we need a custom install target to ensure confdir and statedir
have the correct permissions.

Makefile.am

@@ -31,11 +31,17 @@ AM_LDFLAGS = $(MISC_LDFLAGS)
 confdir = $(sysconfdir)/bluetooth
 statedir = $(localstatedir)/lib/bluetooth
 
+install-data-hook:
+	install -dm555 $(DESTDIR)$(confdir)
+	install -dm700 $(DESTDIR)$(statedir)
+
 if DATAFILES
 dbusdir = $(DBUS_CONFDIR)/dbus-1/system.d
 dbus_DATA = src/bluetooth.conf
 
-conf_DATA =
+conf_DATA = src/main.conf
+conf_DATA += profiles/input/input.conf
+conf_DATA += profiles/network/network.conf
 state_DATA =
 endif
 

Makefile.mesh

@@ -3,6 +3,7 @@ if MESH
 
 if DATAFILES
 dbus_DATA += mesh/bluetooth-mesh.conf
+conf_DATA += mesh/mesh-main.conf
 endif
 
 if SYSTEMD