Ensure that IN6_IFF_TEMPORARY is defined before checking it on Linux.

diff --git a/src/ipv6.h b/src/ipv6.h
index 4866aede28f6ffd44fd76db501c085b897de718f..9f0ccdae6c432cba58655d48a5cc5c56f94fbb0a 100644 (file)
--- a/src/ipv6.h
+++ b/src/ipv6.h
@@ -94,35 +94,11 @@
 #  undef IPV6_POLLADDRFLAG
 #endif
 
-/*
- * If dhcpcd handles RA processing instead of the kernel, the kernel needs
- * to either allow userland to set temporary addresses or mark an address
- * for the kernel to manage temporary addresses from.
- * If the kernel allows the former, a global #define is needed, otherwise
- * the address marking will be handled in the platform specific address handler.
- *
- * Some BSDs do not allow userland to set temporary addresses.
- * Linux-3.18 allows the marking of addresses from which to manage temp addrs.
- */
-#if defined(BSD) && defined(IN6_IFF_TEMPORARY)
-#define IPV6_MANAGETEMPADDR
-#endif
-
-/*
- * You could enable IPV6_MANAGETEMPADDR anyway and disable the platform
- * specific address marking to test dhcpcd's temporary address handling as well,
- * but this will not affect source address selection so is of very limited use.
- */
-#if 0
-/* Pretend we have an old Linux kernel. */
-#undef IFA_F_MANAGETEMPADDR
-/* Enable dhcpcd handling temporary addresses. */
-#define IPV6_MANAGETEMPADDR
-#endif
-
 #ifdef __linux__
    /* Match Linux defines to BSD */
-#  define IN6_IFF_TEMPORARY IFA_F_TEMPORARY
+#  ifdef IFA_F_TEMPORARY
+#    define IN6_IFF_TEMPORARY  IFA_F_TEMPORARY
+#  endif
 #  ifdef IFA_F_OPTIMISTIC
 #    define IN6_IFF_TENTATIVE  (IFA_F_TENTATIVE | IFA_F_OPTIMISTIC)
 #  else
@@ -149,6 +125,20 @@
 #define IN6_IFF_NOTUSEABLE \
        (IN6_IFF_TENTATIVE | IN6_IFF_DUPLICATED | IN6_IFF_DETACHED)
 
+/*
+ * If dhcpcd handles RA processing instead of the kernel, the kernel needs
+ * to either allow userland to set temporary addresses or mark an address
+ * for the kernel to manage temporary addresses from.
+ * If the kernel allows the former, a global #define is needed, otherwise
+ * the address marking will be handled in the platform specific address handler.
+ *
+ * Some BSDs do not allow userland to set temporary addresses.
+ * Linux-3.18 allows the marking of addresses from which to manage temp addrs.
+ */
+#ifdef IN6_IFF_TEMPORARY
+#define        IPV6_MANAGETEMPADDR
+#endif
+
 TAILQ_HEAD(ipv6_addrhead, ipv6_addr);
 struct ipv6_addr {
        TAILQ_ENTRY(ipv6_addr) next;