[IPV4] ARP: Alloc acceptance of unsolicited ARP via netdevice sysctl.

[net-next-2.6.git] / net / ipv4 / arp.c

diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index b425748f02d7cbc1a088fcfb4bcecb1e68fc34cf..041dadde31af74c23b482bb65905f2bba6822471 100644 (file)
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -79,6 +79,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/capability.h>
 #include <linux/config.h>
 #include <linux/socket.h>
 #include <linux/sockios.h>
@@ -86,6 +87,7 @@
 #include <linux/in.h>
 #include <linux/mm.h>
 #include <linux/inet.h>
+#include <linux/inetdevice.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/fddidevice.h>
@@ -877,16 +879,16 @@ static int arp_process(struct sk_buff *skb)
 
        n = __neigh_lookup(&arp_tbl, &sip, dev, 0);
 
-#ifdef CONFIG_IP_ACCEPT_UNSOLICITED_ARP
-       /* Unsolicited ARP is not accepted by default.
-          It is possible, that this option should be enabled for some
-          devices (strip is candidate)
-        */
-       if (n == NULL &&
-           arp->ar_op == htons(ARPOP_REPLY) &&
-           inet_addr_type(sip) == RTN_UNICAST)
-               n = __neigh_lookup(&arp_tbl, &sip, dev, -1);
-#endif
+       if (ipv4_devconf.arp_accept) {
+               /* Unsolicited ARP is not accepted by default.
+                  It is possible, that this option should be enabled for some
+                  devices (strip is candidate)
+                */
+               if (n == NULL &&
+                   arp->ar_op == htons(ARPOP_REPLY) &&
+                   inet_addr_type(sip) == RTN_UNICAST)
+                       n = __neigh_lookup(&arp_tbl, &sip, dev, -1);
+       }
 
        if (n) {
                int state = NUD_REACHABLE;