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authorRoy Marples <roy@marples.name>2007-07-18 11:26:59 +0000
committerRoy Marples <roy@marples.name>2007-07-18 11:26:59 +0000
commit77659ce0359c096d8a2667541879f8a59fad8121 (patch)
tree01a6f94b4eb5320b3f9a173398f0657734912fcc /ipv4ll.h
parentff711cf766f3efd9dc8f79776e688a3a28f52d9a (diff)
downloaddhcpcd-77659ce0359c096d8a2667541879f8a59fad8121.tar.xz
We now do ARP checking by default as recommended by RFC 2131.
Add RFC 3927 (aka IPV4LL aka APIPA) support by default.
Diffstat (limited to 'ipv4ll.h')
-rw-r--r--ipv4ll.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/ipv4ll.h b/ipv4ll.h
new file mode 100644
index 00000000..f05d188e
--- /dev/null
+++ b/ipv4ll.h
@@ -0,0 +1,37 @@
+/*
+ * dhcpcd - DHCP client daemon -
+ * Copyright 2005 - 2007 Roy Marples <uberlord@gentoo.org>
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef IPV4LL_H
+#define IPV4LL_H
+
+#ifdef ENABLE_IPV4LL
+
+#include "dhcp.h"
+#include "interface.h"
+
+#define LINKLOCAL_ADDR 0xa9fe0000
+#define LINKLOCAL_MASK 0xffff0000
+#define LINKLOCAL_BRDC 0xa9feffff
+
+#define IN_LINKLOCAL(addr) ((ntohl (addr) & IN_CLASSB_NET) == LINKLOCAL_ADDR)
+
+int ipv4ll_get_address (interface_t *iface, dhcp_t *dhcp);
+
+#endif
+#endif