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-rw-r--r--sys/netinet/ip_output.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c
index 65372d9..5f19acc 100644
--- a/sys/netinet/ip_output.c
+++ b/sys/netinet/ip_output.c
@@ -33,6 +33,7 @@
__FBSDID("$FreeBSD$");
#include "opt_ipfw.h"
+#include "opt_inet.h"
#include "opt_ipsec.h"
#include "opt_mac.h"
#include "opt_mbuf_stress_test.h"
@@ -95,6 +96,12 @@ SYSCTL_INT(_net_inet_ip, OID_AUTO, mbuf_frag_size, CTLFLAG_RW,
&mbuf_frag_size, 0, "Fragment outgoing mbufs to this size");
#endif
+#if defined(IP_NONLOCALBIND)
+static int ip_nonlocalok = 0;
+SYSCTL_INT(_net_inet_ip, OID_AUTO, nonlocalok,
+ CTLFLAG_RW|CTLFLAG_SECURE, &ip_nonlocalok, 0, "");
+#endif
+
static void ip_mloopback
(struct ifnet *, struct mbuf *, struct sockaddr_in *, int);
@@ -866,6 +873,13 @@ ip_ctloutput(struct socket *so, struct sockopt *sopt)
return (error);
}
+#if defined(IP_NONLOCALBIND)
+ case IP_NONLOCALOK:
+ if (! ip_nonlocalok) {
+ error = ENOPROTOOPT;
+ break;
+ }
+#endif
case IP_TOS:
case IP_TTL:
case IP_MINTTL:
@@ -937,6 +951,11 @@ ip_ctloutput(struct socket *so, struct sockopt *sopt)
case IP_DONTFRAG:
OPTSET(INP_DONTFRAG);
break;
+#if defined(IP_NONLOCALBIND)
+ case IP_NONLOCALOK:
+ OPTSET(INP_NONLOCALOK);
+ break;
+#endif
}
break;
#undef OPTSET
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