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Allow vlan interfaces to rx through netmap(4).

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Normally after receiving a packet, a vlan(4) interface sends the packet
back through its parent interface's rx routine so that it can be
processed as an untagged frame. It does this by using the parent's
ifp->if_input. This is incompatible with netmap(4), which replaces the
vlan(4) interface's if_input with a netmap(4) hook. Fix this by using
the vlan(4) interface's ifp instead of the parent's directly.

Reported by:	Harry Schmalzbauer <freebsd@omnilan.de>
Reviewed by:	rstone
Approved by:	rstone (mentor)
MFC after:	3 days
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D12191
This commit is contained in:
Matt Joras 2017-09-13 00:25:09 +00:00
parent be17336036
commit fdbf11746a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=323513
1 changed files with 1 additions and 1 deletions
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2
sys/net/if_vlan.c
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@ -1384,7 +1384,7 @@ vlan_input(struct ifnet *ifp, struct mbuf *m)
VLAN_RUNLOCK();
/* Pass it back through the parent's input routine. */
(*ifp->if_input)(ifv->ifv_ifp, m);
(*ifv->ifv_ifp->if_input)(ifv->ifv_ifp, m);
}
static void