diff options
| author | YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org> | 2013-03-25 08:25:38 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-26 12:32:13 -0400 |
| commit | 18406d7e42a67d7b3a3b3ed17be6626a51d8c715 (patch) | |
| tree | 69c20a5c860b6970383abc66b07fe6788e5a03d6 | |
| parent | b8092861efd827deb8d84292674704ee8bf41b04 (diff) | |
| download | linux-18406d7e42a67d7b3a3b3ed17be6626a51d8c715.tar.bz2 | |
firewire net: Accept IPv4 and ARP only.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/firewire/net.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c index c1898adeb900..d438c5be8c21 100644 --- a/drivers/firewire/net.c +++ b/drivers/firewire/net.c @@ -517,6 +517,14 @@ static int fwnet_finish_incoming_packet(struct net_device *net, int status; __be64 guid; + switch (ether_type) { + case ETH_P_ARP: + case ETH_P_IP: + break; + default: + goto err; + } + dev = netdev_priv(net); /* Write metadata, and then pass to the receive level */ skb->dev = net; @@ -653,6 +661,7 @@ static int fwnet_finish_incoming_packet(struct net_device *net, return 0; no_peer: + err: net->stats.rx_errors++; net->stats.rx_dropped++; @@ -1340,9 +1349,17 @@ static netdev_tx_t fwnet_tx(struct sk_buff *skb, struct net_device *net) * We might need to rebuild the header on tx failure. */ memcpy(&hdr_buf, skb->data, sizeof(hdr_buf)); - skb_pull(skb, sizeof(hdr_buf)); - proto = hdr_buf.h_proto; + + switch (proto) { + case htons(ETH_P_ARP): + case htons(ETH_P_IP): + break; + default: + goto fail; + } + + skb_pull(skb, sizeof(hdr_buf)); dg_size = skb->len; /* |