QinQ
- From: Jon Otterholm <jon.otterholm@xxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 25 Oct 2007 23:41:38 +0200
Hi.
I was wondering about the possibility of adding support for QinQ
("Double tagged frames" / "Nested vlans"). Attached is a patch against
-STABLE to add this support. I have not tested this but was told it
should work.
Would it be possible to get this into CURRENT?
//Jon
--- if_vlan.c.orig 2006-10-17 14:24:18.000000000 +0700
+++ if_vlan.c 2007-09-14 14:00:44.000000000 +0700
@@ -327,7 +327,8 @@
/* Check for <etherif>.<vlan> style interface names. */
IFNET_RLOCK();
TAILQ_FOREACH(ifp, &ifnet, if_link) {
- if (ifp->if_type != IFT_ETHER)
+ if (ifp->if_type != IFT_ETHER &&
+ ifp->if_type != IFT_L2VLAN)
continue;
if (strncmp(ifp->if_xname, name, strlen(ifp->if_xname)) != 0)
continue;
@@ -672,6 +673,7 @@
mtag = NULL;
switch (ifp->if_type) {
case IFT_ETHER:
+ case IFT_L2VLAN:
if (m->m_len < sizeof(*evl) &&
(m = m_pullup(m, sizeof(*evl))) == NULL) {
if_printf(ifp, "cannot pullup VLAN header\n");
@@ -748,8 +750,9 @@
VLAN_LOCK_ASSERT();
- if (p->if_type != IFT_ETHER)
- return (EPROTONOSUPPORT);
+ if ((p->if_data.ifi_type != IFT_ETHER) &&
+ (p->if_data.ifi_type != IFT_L2VLAN))
+ return (EPROTONOSUPPORT);
if ((p->if_flags & VLAN_IFFLAGS) != VLAN_IFFLAGS)
return (EPROTONOSUPPORT);
if (ifv->ifv_p)
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