From 72d1944ad20d0f4c6f44cd9ec8adbc294db8a5e7 Mon Sep 17 00:00:00 2001
From: markj <markj@FreeBSD.org>
Date: Fri, 22 Aug 2014 19:21:08 +0000
Subject: Add some missing checks for unsupported interfaces (e.g. pflog(4))
 when handling ioctls. While here, remove duplicated checks for a NULL ifp in
 in6_control(): this check is already done near the beginning of the function.

PR:		189117
Reviewed by:	hrs
MFC after:	2 weeks
---
 sys/netinet6/scope6.c | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

(limited to 'sys/netinet6/scope6.c')

diff --git a/sys/netinet6/scope6.c b/sys/netinet6/scope6.c
index 3284a7d..d0c6655 100644
--- a/sys/netinet6/scope6.c
+++ b/sys/netinet6/scope6.c
@@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/malloc.h>
 #include <sys/mbuf.h>
 #include <sys/socket.h>
+#include <sys/sockio.h>
 #include <sys/systm.h>
 #include <sys/queue.h>
 #include <sys/sysctl.h>
@@ -79,6 +80,9 @@ static VNET_DEFINE(struct scope6_id, sid_default);
 #define SID(ifp) \
 	(((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->scope6_id)
 
+static int	scope6_get(struct ifnet *, struct scope6_id *);
+static int	scope6_set(struct ifnet *, struct scope6_id *);
+
 void
 scope6_init(void)
 {
@@ -122,6 +126,30 @@ scope6_ifdetach(struct scope6_id *sid)
 }
 
 int
+scope6_ioctl(u_long cmd, caddr_t data, struct ifnet *ifp)
+{
+	struct in6_ifreq *ifr;
+
+	if (ifp->if_afdata[AF_INET6] == NULL)
+		return (EPFNOSUPPORT);
+
+	ifr = (struct in6_ifreq *)data;
+	switch (cmd) {
+	case SIOCSSCOPE6:
+		return (scope6_set(ifp,
+		    (struct scope6_id *)ifr->ifr_ifru.ifru_scope_id));
+	case SIOCGSCOPE6:
+		return (scope6_get(ifp,
+		    (struct scope6_id *)ifr->ifr_ifru.ifru_scope_id));
+	case SIOCGSCOPE6DEF:
+		return (scope6_get_default(
+		    (struct scope6_id *)ifr->ifr_ifru.ifru_scope_id));
+	default:
+		return (EOPNOTSUPP);
+	}
+}
+
+static int
 scope6_set(struct ifnet *ifp, struct scope6_id *idlist)
 {
 	int i;
@@ -184,7 +212,7 @@ scope6_set(struct ifnet *ifp, struct scope6_id *idlist)
 	return (error);
 }
 
-int
+static int
 scope6_get(struct ifnet *ifp, struct scope6_id *idlist)
 {
 	struct scope6_id *sid;
@@ -203,7 +231,6 @@ scope6_get(struct ifnet *ifp, struct scope6_id *idlist)
 	return (0);
 }
 
-
 /*
  * Get a scope of the address. Node-local, link-local, site-local or global.
  */
-- 
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