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[IPV6] MCAST: Use standard path for sending MLD/MLDv2 messages. 

This is changing the paths for sending MLD/MLDv2 messages
from dev_queue_xmit() to standard dst_output().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki 2007-12-06 17:40:56 -08:00
parent 3b00944c5c
commit 4192717807
1 changed files with 45 additions and 21 deletions
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66
net/ipv6/mcast.c
View File

@ -1433,25 +1433,6 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
return skb;
}
static inline int mld_dev_queue_xmit2(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
unsigned char ha[MAX_ADDR_LEN];
ndisc_mc_map(&ipv6_hdr(skb)->daddr, ha, dev, 1);
if (dev_hard_header(skb, dev, ETH_P_IPV6, ha, NULL, skb->len) < 0) {
kfree_skb(skb);
return -EINVAL;
}
return dev_queue_xmit(skb);
}
static inline int mld_dev_queue_xmit(struct sk_buff *skb)
{
return NF_HOOK(PF_INET6, NF_INET_POST_ROUTING, skb, NULL, skb->dev,
mld_dev_queue_xmit2);
}
static void mld_sendpack(struct sk_buff *skb)
{
struct ipv6hdr *pip6 = ipv6_hdr(skb);
@ -1460,6 +1441,7 @@ static void mld_sendpack(struct sk_buff *skb)
int payload_len, mldlen;
struct inet6_dev *idev = in6_dev_get(skb->dev);
int err;
struct flowi fl;
IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
payload_len = (skb->tail - skb->network_header) - sizeof(*pip6);
@ -1469,8 +1451,25 @@ static void mld_sendpack(struct sk_buff *skb)
pmr->csum = csum_ipv6_magic(&pip6->saddr, &pip6->daddr, mldlen,
IPPROTO_ICMPV6, csum_partial(skb_transport_header(skb),
mldlen, 0));
skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
if (!skb->dst) {
err = -ENOMEM;
goto err_out;
}
icmpv6_flow_init(igmp6_socket->sk, &fl, ICMPV6_MLD2_REPORT,
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
err = xfrm_lookup(&skb->dst, &fl, NULL, 0);
if (err)
goto err_out;
err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
mld_dev_queue_xmit);
dst_output);
out:
if (!err) {
ICMP6MSGOUT_INC_STATS_BH(idev, ICMPV6_MLD2_REPORT);
ICMP6_INC_STATS_BH(idev, ICMP6_MIB_OUTMSGS);
@ -1480,6 +1479,11 @@ static void mld_sendpack(struct sk_buff *skb)
if (likely(idev != NULL))
in6_dev_put(idev);
return;
err_out:
kfree_skb(skb);
goto out;
}
static int grec_size(struct ifmcaddr6 *pmc, int type, int gdel, int sdel)
@ -1761,6 +1765,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
u8 ra[8] = { IPPROTO_ICMPV6, 0,
IPV6_TLV_ROUTERALERT, 2, 0, 0,
IPV6_TLV_PADN, 0 };
struct flowi fl;
rcu_read_lock();
IP6_INC_STATS(__in6_dev_get(dev),
@ -1813,8 +1818,23 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
idev = in6_dev_get(skb->dev);
skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
if (!skb->dst) {
err = -ENOMEM;
goto err_out;
}
icmpv6_flow_init(igmp6_socket->sk, &fl, type,
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
err = xfrm_lookup(&skb->dst, &fl, NULL, 0);
if (err)
goto err_out;
err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
mld_dev_queue_xmit);
dst_output);
out:
if (!err) {
ICMP6MSGOUT_INC_STATS(idev, type);
ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
@ -1825,6 +1845,10 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
if (likely(idev != NULL))
in6_dev_put(idev);
return;
err_out:
kfree_skb(skb);
goto out;
}
static int ip6_mc_del1_src(struct ifmcaddr6 *pmc, int sfmode,