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Diffstat (limited to 'net/ipv6/mcast.c')
-rw-r--r--net/ipv6/mcast.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index ee7839f4d6e3..6cc4d1fb8c13 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -155,7 +155,7 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
155 return -ENOMEM; 155 return -ENOMEM;
156 156
157 mc_lst->next = NULL; 157 mc_lst->next = NULL;
158 ipv6_addr_copy(&mc_lst->addr, addr); 158 mc_lst->addr = *addr;
159 159
160 rcu_read_lock(); 160 rcu_read_lock();
161 if (ifindex == 0) { 161 if (ifindex == 0) {
@@ -858,7 +858,7 @@ int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr)
858 858
859 setup_timer(&mc->mca_timer, igmp6_timer_handler, (unsigned long)mc); 859 setup_timer(&mc->mca_timer, igmp6_timer_handler, (unsigned long)mc);
860 860
861 ipv6_addr_copy(&mc->mca_addr, addr); 861 mc->mca_addr = *addr;
862 mc->idev = idev; /* (reference taken) */ 862 mc->idev = idev; /* (reference taken) */
863 mc->mca_users = 1; 863 mc->mca_users = 1;
864 /* mca_stamp should be updated upon changes */ 864 /* mca_stamp should be updated upon changes */
@@ -1343,13 +1343,15 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
1343 struct mld2_report *pmr; 1343 struct mld2_report *pmr;
1344 struct in6_addr addr_buf; 1344 struct in6_addr addr_buf;
1345 const struct in6_addr *saddr; 1345 const struct in6_addr *saddr;
1346 int hlen = LL_RESERVED_SPACE(dev);
1347 int tlen = dev->needed_tailroom;
1346 int err; 1348 int err;
1347 u8 ra[8] = { IPPROTO_ICMPV6, 0, 1349 u8 ra[8] = { IPPROTO_ICMPV6, 0,
1348 IPV6_TLV_ROUTERALERT, 2, 0, 0, 1350 IPV6_TLV_ROUTERALERT, 2, 0, 0,
1349 IPV6_TLV_PADN, 0 }; 1351 IPV6_TLV_PADN, 0 };
1350 1352
1351 /* we assume size > sizeof(ra) here */ 1353 /* we assume size > sizeof(ra) here */
1352 size += LL_ALLOCATED_SPACE(dev); 1354 size += hlen + tlen;
1353 /* limit our allocations to order-0 page */ 1355 /* limit our allocations to order-0 page */
1354 size = min_t(int, size, SKB_MAX_ORDER(0, 0)); 1356 size = min_t(int, size, SKB_MAX_ORDER(0, 0));
1355 skb = sock_alloc_send_skb(sk, size, 1, &err); 1357 skb = sock_alloc_send_skb(sk, size, 1, &err);
@@ -1357,7 +1359,7 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
1357 if (!skb) 1359 if (!skb)
1358 return NULL; 1360 return NULL;
1359 1361
1360 skb_reserve(skb, LL_RESERVED_SPACE(dev)); 1362 skb_reserve(skb, hlen);
1361 1363
1362 if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) { 1364 if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) {
1363 /* <draft-ietf-magma-mld-source-05.txt>: 1365 /* <draft-ietf-magma-mld-source-05.txt>:
@@ -1723,6 +1725,8 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
1723 struct mld_msg *hdr; 1725 struct mld_msg *hdr;
1724 const struct in6_addr *snd_addr, *saddr; 1726 const struct in6_addr *snd_addr, *saddr;
1725 struct in6_addr addr_buf; 1727 struct in6_addr addr_buf;
1728 int hlen = LL_RESERVED_SPACE(dev);
1729 int tlen = dev->needed_tailroom;
1726 int err, len, payload_len, full_len; 1730 int err, len, payload_len, full_len;
1727 u8 ra[8] = { IPPROTO_ICMPV6, 0, 1731 u8 ra[8] = { IPPROTO_ICMPV6, 0,
1728 IPV6_TLV_ROUTERALERT, 2, 0, 0, 1732 IPV6_TLV_ROUTERALERT, 2, 0, 0,
@@ -1744,7 +1748,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
1744 IPSTATS_MIB_OUT, full_len); 1748 IPSTATS_MIB_OUT, full_len);
1745 rcu_read_unlock(); 1749 rcu_read_unlock();
1746 1750
1747 skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + full_len, 1, &err); 1751 skb = sock_alloc_send_skb(sk, hlen + tlen + full_len, 1, &err);
1748 1752
1749 if (skb == NULL) { 1753 if (skb == NULL) {
1750 rcu_read_lock(); 1754 rcu_read_lock();
@@ -1754,7 +1758,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
1754 return; 1758 return;
1755 } 1759 }
1756 1760
1757 skb_reserve(skb, LL_RESERVED_SPACE(dev)); 1761 skb_reserve(skb, hlen);
1758 1762
1759 if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) { 1763 if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) {
1760 /* <draft-ietf-magma-mld-source-05.txt>: 1764 /* <draft-ietf-magma-mld-source-05.txt>:
@@ -1772,7 +1776,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
1772 hdr = (struct mld_msg *) skb_put(skb, sizeof(struct mld_msg)); 1776 hdr = (struct mld_msg *) skb_put(skb, sizeof(struct mld_msg));
1773 memset(hdr, 0, sizeof(struct mld_msg)); 1777 memset(hdr, 0, sizeof(struct mld_msg));
1774 hdr->mld_type = type; 1778 hdr->mld_type = type;
1775 ipv6_addr_copy(&hdr->mld_mca, addr); 1779 hdr->mld_mca = *addr;
1776 1780
1777 hdr->mld_cksum = csum_ipv6_magic(saddr, snd_addr, len, 1781 hdr->mld_cksum = csum_ipv6_magic(saddr, snd_addr, len,
1778 IPPROTO_ICMPV6, 1782 IPPROTO_ICMPV6,