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qeth: HiperSockets layer-3 interface drop non IPv4 or non IPv6 packets 

HiperSockets infrastructure (layer-3 mode) supports only IPv4 or
IPv6 packets. Sending other packet types disturbs TCP/IP on z/VM,
which issues messages about invalid packets.
Qeth send routine will detect packet type on sending over a
HiperSockets interface (in layer-3 mode) and drop non IP packets.
The error and drop count of the interface is incremented.

Signed-off-by: Klaus D. Wacker <kdwacker@de.ibm.com>
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Klaus D. Wacker 2007-10-05 16:45:44 +02:00 committed by David S. Miller
parent a3138df9f2
commit bc4b2b497a
1 changed files with 2 additions and 2 deletions
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4
drivers/s390/net/qeth_main.c
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@ -4719,8 +4719,8 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
rc = qeth_do_send_packet(card, queue, new_skb, hdr, rc = qeth_do_send_packet(card, queue, new_skb, hdr,
elements_needed, ctx); elements_needed, ctx);
else { else {
if ((skb->protocol == htons(ETH_P_ARP)) && if ((!card->options.layer2) &&
(card->dev->flags & IFF_NOARP)) { (ipv == 0)) {
__qeth_free_new_skb(skb, new_skb); __qeth_free_new_skb(skb, new_skb);
return -EPERM; return -EPERM;
} }