From 8fed657163fb373990aaa15c79b58a7c963373b2 Mon Sep 17 00:00:00 2001
From: delphij <delphij@FreeBSD.org>
Date: Thu, 12 Nov 2009 19:02:10 +0000
Subject: Revert revision 199201 for now as it has introduced a kernel
 vulnerability and requires more polishing.

---
 sys/net/if.c | 41 -----------------------------------------
 1 file changed, 41 deletions(-)

(limited to 'sys/net/if.c')

diff --git a/sys/net/if.c b/sys/net/if.c
index 4ba453a..55de666 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -463,8 +463,6 @@ if_free_internal(struct ifnet *ifp)
 #ifdef MAC
 	mac_ifnet_destroy(ifp);
 #endif /* MAC */
-	if (ifp->if_description != NULL)
-		sbuf_delete(ifp->if_description);
 	IF_AFDATA_DESTROY(ifp);
 	IF_ADDR_LOCK_DESTROY(ifp);
 	ifq_delete(&ifp->if_snd);
@@ -2092,45 +2090,6 @@ ifhwioctl(u_long cmd, struct ifnet *ifp, caddr_t data, struct thread *td)
 		ifr->ifr_phys = ifp->if_physical;
 		break;
 
-	case SIOCGIFDESCR:
-		IF_AFDATA_RLOCK(ifp);
-		if (ifp->if_description == NULL)
-			error = ENOMSG;
-		else
-			error = copystr(sbuf_data(ifp->if_description),
-					ifr->ifr_buffer.buffer,
-					ifr->ifr_buffer.length, NULL);
-		IF_AFDATA_RUNLOCK(ifp);
-		break;
-
-	case SIOCSIFDESCR:
-		error = priv_check(td, PRIV_NET_SETIFDESCR);
-		if (error)
-			return (error);
-
-		IF_AFDATA_WLOCK(ifp);
-		if (ifp->if_description == NULL) {
-			ifp->if_description = sbuf_new_auto();
-			if (ifp->if_description == NULL) {
-				error = ENOMEM;
-				IF_AFDATA_WUNLOCK(ifp);
-				break;
-			}
-		} else
-			sbuf_clear(ifp->if_description);
-
-		if (sbuf_copyin(ifp->if_description, ifr->ifr_buffer.buffer,
-				ifr->ifr_buffer.length) == -1)
-			error = EFAULT;
-
-		if (error == 0) {
-			sbuf_finish(ifp->if_description);
-			getmicrotime(&ifp->if_lastchange);
-		}
-		IF_AFDATA_WUNLOCK(ifp);
-
-		break;
-
 	case SIOCSIFFLAGS:
 		error = priv_check(td, PRIV_NET_SETIFFLAGS);
 		if (error)
-- 
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