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s390: qeth driver fixes: packet socket

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- packet socket support is not complete.
      Recvfrom a packet socket does not fill the sockaddr_ll structure.
      device function hard_header_parse is not implemented.
      For layer 2 mode and layer 3 mode with fake_ll turned on, we have
      the information to fill sockaddr_ll.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Frank Blaschka 2007-01-08 17:29:58 +01:00 committed by Jeff Garzik
parent 95c78c8bfe
commit 2d36c16eb0
1 changed files with 53 additions and 5 deletions
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58
drivers/s390/net/qeth_main.c
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@ -3952,13 +3952,22 @@ static inline struct sk_buff *
qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
struct qeth_hdr **hdr, int ipv)
{
struct sk_buff *new_skb;
struct sk_buff *new_skb, *new_skb2;
QETH_DBF_TEXT(trace, 6, "prepskb");
new_skb = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
if (new_skb == NULL)
new_skb = skb;
new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
if (!new_skb)
return NULL;
new_skb2 = qeth_realloc_headroom(card, new_skb,
sizeof(struct qeth_hdr));
if (!new_skb2) {
__qeth_free_new_skb(skb, new_skb);
return NULL;
}
if (new_skb != skb)
__qeth_free_new_skb(new_skb2, new_skb);
new_skb = new_skb2;
*hdr = __qeth_prepare_skb(card, new_skb, ipv);
if (*hdr == NULL) {
__qeth_free_new_skb(skb, new_skb);
@ -6338,6 +6347,42 @@ static struct ethtool_ops qeth_ethtool_ops = {
.set_tso = qeth_ethtool_set_tso,
};
static int
qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
{
struct qeth_card *card;
struct ethhdr *eth;
card = qeth_get_card_from_dev(skb->dev);
if (card->options.layer2)
goto haveheader;
#ifdef CONFIG_QETH_IPV6
/* cause of the manipulated arp constructor and the ARP
flag for OSAE devices we have some nasty exceptions */
if (card->info.type == QETH_CARD_TYPE_OSAE) {
if (!card->options.fake_ll) {
if ((skb->pkt_type==PACKET_OUTGOING) &&
(skb->protocol==ETH_P_IPV6))
goto haveheader;
else
return 0;
} else {
if ((skb->pkt_type==PACKET_OUTGOING) &&
(skb->protocol==ETH_P_IP))
return 0;
else
goto haveheader;
}
}
#endif
if (!card->options.fake_ll)
return 0;
haveheader:
eth = eth_hdr(skb);
memcpy(haddr, eth->h_source, ETH_ALEN);
return ETH_ALEN;
}
static int
qeth_netdev_init(struct net_device *dev)
{
@ -6376,7 +6421,10 @@ qeth_netdev_init(struct net_device *dev)
if (card->options.fake_ll &&
(qeth_get_netdev_flags(card) & IFF_NOARP))
dev->hard_header = qeth_fake_header;
dev->hard_header_parse = NULL;
if (dev->type == ARPHRD_IEEE802_TR)
dev->hard_header_parse = NULL;
else
dev->hard_header_parse = qeth_hard_header_parse;
dev->set_mac_address = qeth_layer2_set_mac_address;
dev->flags |= qeth_get_netdev_flags(card);
if ((card->options.fake_broadcast) ||