diff options
Diffstat (limited to 'net/ipv4/ip_gre.c')
| -rw-r--r-- | net/ipv4/ip_gre.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 476cb6084c7..f12c0d6623a 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -1,5 +1,5 @@ /* - * Linux NET3: GRE over IP protocol decoder. + * Linux NET3: GRE over IP protocol decoder. * * Authors: Alexey Kuznetsov (kuznet@ms2.inr.ac.ru) * @@ -63,7 +63,7 @@ solution, but it supposes maintaing new variable in ALL skb, even if no tunneling is used. - Current solution: t->recursion lock breaks dead loops. It looks + Current solution: t->recursion lock breaks dead loops. It looks like dev->tbusy flag, but I preferred new variable, because the semantics is different. One day, when hard_start_xmit will be multithreaded we will have to use skb->encapsulation. @@ -613,7 +613,7 @@ static int ipgre_rcv(struct sk_buff *skb) if (flags == 0 && skb->protocol == htons(ETH_P_WCCP)) { skb->protocol = htons(ETH_P_IP); - if ((*(h + offset) & 0xF0) != 0x40) + if ((*(h + offset) & 0xF0) != 0x40) offset += 4; } @@ -816,7 +816,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom); if (!new_skb) { ip_rt_put(rt); - stats->tx_dropped++; + stats->tx_dropped++; dev_kfree_skb(skb); tunnel->recursion--; return 0; @@ -1008,7 +1008,8 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd) goto done; dev = t->dev; } - err = unregister_netdevice(dev); + unregister_netdevice(dev); + err = 0; break; default: @@ -1043,7 +1044,7 @@ static int ipgre_tunnel_change_mtu(struct net_device *dev, int new_mtu) so that I had to set ARPHRD_IPGRE to a random value. I have an impression, that Cisco could make something similar, but this feature is apparently missing in IOS<=11.2(8). - + I set up 10.66.66/24 and fec0:6666:6666::0/96 as virtual networks with broadcast 224.66.66.66. If you have access to mbone, play with me :-) @@ -1075,9 +1076,9 @@ static int ipgre_header(struct sk_buff *skb, struct net_device *dev, unsigned sh p[1] = htons(type); /* - * Set the source hardware address. + * Set the source hardware address. */ - + if (saddr) memcpy(&iph->saddr, saddr, 4); @@ -1087,7 +1088,7 @@ static int ipgre_header(struct sk_buff *skb, struct net_device *dev, unsigned sh } if (iph->daddr && !MULTICAST(iph->daddr)) return t->hlen; - + return -t->hlen; } |