Fix compilation problems and issue #20

- Netlink is disabled per default (compile with WITH_ND_NETLINK)

- Automatic loading of routes is only done if at least one rule
  uses the "auto" setting.

Makefile

@@ -11,13 +11,17 @@ MANDIR  ?= ${DESTDIR}${PREFIX}/share/man
 SBINDIR ?= ${DESTDIR}${PREFIX}/sbin
 PKG_CONFIG ?= pkg-config
 
-LIBS     = `${PKG_CONFIG} --libs glib-2.0 libnl-3.0 libnl-route-3.0` -pthread
-CPPFLAGS = `${PKG_CONFIG} --cflags glib-2.0 libnl-3.0 libnl-route-3.0`
 
 OBJS     = src/logger.o src/ndppd.o src/iface.o src/proxy.o src/address.o \
-           src/rule.o src/session.o src/conf.o src/route.o src/nd-netlink.o
+           src/rule.o src/session.o src/conf.o src/route.o 
 
-all: ndppd ndppd.1.gz ndppd.conf.5.gz nd-proxy
+ifdef WITH_ND_NETLINK
+  LIBS     = `${PKG_CONFIG} --libs glib-2.0 libnl-3.0 libnl-route-3.0` -pthread
+  CPPFLAGS = `${PKG_CONFIG} --cflags glib-2.0 libnl-3.0 libnl-route-3.0`
+  OBJ      = ${OBJ} src/nd-netlink.o
+endif
+
+all: ndppd ndppd.1.gz ndppd.conf.5.gz
 
 install: all
 	mkdir -p ${SBINDIR} ${MANDIR} ${MANDIR}/man1 ${MANDIR}/man5

src/ndppd.cc

@@ -286,7 +286,9 @@ int main(int argc, char* argv[], char* env[])
 
     gettimeofday(&t1, 0);
 
+#ifdef WITH_ND_NETLINK
     netlink_setup();
+#endif
 
     while (running) {
         if (iface::poll_all() < 0) {
@@ -306,11 +308,16 @@ int main(int argc, char* argv[], char* env[])
         t1.tv_sec  = t2.tv_sec;
         t1.tv_usec = t2.tv_usec;
 
-        route::update(elapsed_time);
+        if (rule::any_auto())
+            route::update(elapsed_time);
+
         session::update_all(elapsed_time);
     }
 
+#ifdef WITH_ND_NETLINK
     netlink_teardown();
+#endif
+
     logger::notice() << "Bye";
 
     return 0;

src/proxy.cc

@@ -126,11 +126,13 @@ void proxy::handle_solicit(const address& saddr, const address& daddr,
                 return;
             } else {
                 se->add_iface((*it)->ifa());
+                #ifdef WITH_ND_NETLINK
                 if (if_addr_find((*it)->ifa()->name(), &taddr.const_addr())) {
                     logger::debug() << "Sending NA out " << (*it)->ifa()->name();
                     se->add_iface(_ifa);
                     se->handle_advert();
                 }
+                #endif
             }
         }
     }

src/rule.cc

@@ -27,6 +27,8 @@ NDPPD_NS_BEGIN
 
 std::vector<interface> interfaces;
 
+bool rule::_any_aut = false;
+
 rule::rule()
 {
 }
@@ -42,9 +44,13 @@ ptr<rule> rule::create(const ptr<proxy>& pr, const address& addr, const ptr<ifac
     unsigned int ifindex;
 
     ifindex = if_nametoindex(pr->ifa()->name().c_str());
+#ifdef WITH_ND_NETLINK
     if_add_to_list(ifindex, pr->ifa());
+#endif
     ifindex = if_nametoindex(ifa->name().c_str());
+#ifdef WITH_ND_NETLINK
     if_add_to_list(ifindex, ifa);
+#endif
 
     logger::debug() << "rule::create() if=" << pr->ifa()->name() << ", addr=" << addr;
 
@@ -58,6 +64,7 @@ ptr<rule> rule::create(const ptr<proxy>& pr, const address& addr, bool aut)
     ru->_pr    = pr;
     ru->_addr  = addr;
     ru->_aut   = aut;
+    _any_aut   = _any_aut || aut;
 
     logger::debug()
         << "rule::create() if=" << pr->ifa()->name().c_str() << ", addr=" << addr
@@ -81,6 +88,11 @@ bool rule::is_auto() const
     return _aut;
 }
 
+bool rule::any_auto()
+{
+    return _any_aut;
+}
+
 bool rule::check(const address& addr) const
 {
     return _addr == addr;

src/rule.h

@@ -43,6 +43,8 @@ public:
 
     bool check(const address& addr) const;
 
+    static bool any_auto();
+
 private:
     weak_ptr<rule> _ptr;
 
@@ -54,6 +56,8 @@ private:
 
     bool _aut;
 
+    static bool _any_aut;
+
     rule();
 };