Bring the interface IFF_UP from ipcp_InterfaceUp() (called from IPCP's

TLU event handler).

This used to be done as a side effect of SIOCAIFADDR'ing the interface,
but now that duplicate SIOCAIFADDRs are optimised out, we can't depend
on that behaviour.

1 files changed, 7 insertions, 0 deletions

diff --git a/usr.sbin/ppp/ipcp.c b/usr.sbin/ppp/ipcp.c
index 3e04e47..d9e4a04 100644
--- a/usr.sbin/ppp/ipcp.c
+++ b/usr.sbin/ppp/ipcp.c
@@ -29,6 +29,7 @@
 #include <netinet/ip.h>
 #include <arpa/inet.h>
 #include <sys/socket.h>
+#include <net/if.h>
 #include <net/route.h>
 #include <netdb.h>
 #include <sys/un.h>
@@ -992,6 +993,12 @@ ipcp_InterfaceUp(struct ipcp *ipcp)
     return 0;
   }
 
+  if (!iface_SetFlags(ipcp->fsm.bundle->iface->name, IFF_UP)) {
+    log_Printf(LogERROR, "ipcp_InterfaceUp: Can't set the IFF_UP flag on %s\n",
+               ipcp->fsm.bundle->iface->name);
+    return 0;
+  }
+
 #ifndef NONAT
   if (ipcp->fsm.bundle->NatEnabled)
     PacketAliasSetAddress(ipcp->my_ip);