Step 1.5 of importing the network stack virtualization infrastructure

from the vimage project, as per plan established at devsummit 08/08:
http://wiki.freebsd.org/Image/Notes200808DevSummit

Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator
macros, and CURVNET_SET() context setting macros, all currently
resolving to NOPs.

Prepare for virtualization of selected SYSCTL objects by introducing a
family of SYSCTL_V_*() macros, currently resolving to their global
counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT().

Move selected #defines from sys/sys/vimage.h to newly introduced header
files specific to virtualized subsystems (sys/net/vnet.h,
sys/netinet/vinet.h etc.).

All the changes are verified to have zero functional impact at this
point in time by doing MD5 comparision between pre- and post-change
object files(*).

(*) netipsec/keysock.c did not validate depending on compile time options.

Implemented by:	julian, bz, brooks, zec
Reviewed by:	julian, bz, brooks, kris, rwatson, ...
Approved by:	julian (mentor)
Obtained from:	//depot/projects/vimage-commit2/...
X-MFC after:	never
Sponsored by:	NLnet Foundation, The FreeBSD Foundation

1 files changed, 20 insertions, 15 deletions

diff --git a/sys/net80211/ieee80211_ddb.c b/sys/net80211/ieee80211_ddb.c
index c4030d3..a319bd5 100644
--- a/sys/net80211/ieee80211_ddb.c
+++ b/sys/net80211/ieee80211_ddb.c
@@ -189,6 +189,7 @@ DB_SHOW_COMMAND(com, db_show_com)
 
 DB_SHOW_ALL_COMMAND(vaps, db_show_all_vaps)
 {
+	VNET_ITERATOR_DECL(vnet_iter);
 	const struct ifnet *ifp;
 	int i, showall = 0;
 
@@ -199,21 +200,25 @@ DB_SHOW_ALL_COMMAND(vaps, db_show_all_vaps)
 			break;
 		}
 
-	TAILQ_FOREACH(ifp, &V_ifnet, if_list)
-		if (ifp->if_type == IFT_IEEE80211) {
-			const struct ieee80211com *ic = ifp->if_l2com;
-
-			if (!showall) {
-				const struct ieee80211vap *vap;
-				db_printf("%s: com %p vaps:",
-				    ifp->if_xname, ic);
-				TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
-					db_printf(" %s(%p)",
-					    vap->iv_ifp->if_xname, vap);
-				db_printf("\n");
-			} else
-				_db_show_com(ic, 1, 1, 1);
-		}
+	VNET_FOREACH(vnet_iter) {
+		INIT_VNET_NET(vnet_iter);
+		TAILQ_FOREACH(ifp, &V_ifnet, if_list)
+			if (ifp->if_type == IFT_IEEE80211) {
+				const struct ieee80211com *ic = ifp->if_l2com;
+
+				if (!showall) {
+					const struct ieee80211vap *vap;
+					db_printf("%s: com %p vaps:",
+					    ifp->if_xname, ic);
+					TAILQ_FOREACH(vap, &ic->ic_vaps,
+					    iv_next)
+						db_printf(" %s(%p)",
+						    vap->iv_ifp->if_xname, vap);
+					db_printf("\n");
+				} else
+					_db_show_com(ic, 1, 1, 1);
+			}
+	}
 }
 
 static void