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Diffstat (limited to 'net/ipv6/ndisc.c')
-rw-r--r--net/ipv6/ndisc.c56
1 files changed, 24 insertions, 32 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 44e5b7f2a6c..d8f02ef88e5 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -93,7 +93,7 @@
static u32 ndisc_hash(const void *pkey,
const struct net_device *dev,
- __u32 rnd);
+ __u32 *hash_rnd);
static int ndisc_constructor(struct neighbour *neigh);
static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb);
static void ndisc_error_report(struct neighbour *neigh, struct sk_buff *skb);
@@ -126,7 +126,6 @@ static const struct neigh_ops ndisc_direct_ops = {
struct neigh_table nd_tbl = {
.family = AF_INET6,
- .entry_size = sizeof(struct neighbour) + sizeof(struct in6_addr),
.key_len = sizeof(struct in6_addr),
.hash = ndisc_hash,
.constructor = ndisc_constructor,
@@ -141,7 +140,7 @@ struct neigh_table nd_tbl = {
.gc_staletime = 60 * HZ,
.reachable_time = ND_REACHABLE_TIME,
.delay_probe_time = 5 * HZ,
- .queue_len = 3,
+ .queue_len_bytes = 64*1024,
.ucast_probes = 3,
.mcast_probes = 3,
.anycast_delay = 1 * HZ,
@@ -350,16 +349,9 @@ EXPORT_SYMBOL(ndisc_mc_map);
static u32 ndisc_hash(const void *pkey,
const struct net_device *dev,
- __u32 hash_rnd)
+ __u32 *hash_rnd)
{
- const u32 *p32 = pkey;
- u32 addr_hash, i;
-
- addr_hash = 0;
- for (i = 0; i < (sizeof(struct in6_addr) / sizeof(u32)); i++)
- addr_hash ^= *p32++;
-
- return jhash_2words(addr_hash, dev->ifindex, hash_rnd);
+ return ndisc_hashfn(pkey, dev, hash_rnd);
}
static int ndisc_constructor(struct neighbour *neigh)
@@ -446,6 +438,8 @@ struct sk_buff *ndisc_build_skb(struct net_device *dev,
struct sock *sk = net->ipv6.ndisc_sk;
struct sk_buff *skb;
struct icmp6hdr *hdr;
+ int hlen = LL_RESERVED_SPACE(dev);
+ int tlen = dev->needed_tailroom;
int len;
int err;
u8 *opt;
@@ -459,7 +453,7 @@ struct sk_buff *ndisc_build_skb(struct net_device *dev,
skb = sock_alloc_send_skb(sk,
(MAX_HEADER + sizeof(struct ipv6hdr) +
- len + LL_ALLOCATED_SPACE(dev)),
+ len + hlen + tlen),
1, &err);
if (!skb) {
ND_PRINTK0(KERN_ERR
@@ -468,7 +462,7 @@ struct sk_buff *ndisc_build_skb(struct net_device *dev,
return NULL;
}
- skb_reserve(skb, LL_RESERVED_SPACE(dev));
+ skb_reserve(skb, hlen);
ip6_nd_hdr(sk, skb, dev, saddr, daddr, IPPROTO_ICMPV6, len);
skb->transport_header = skb->tail;
@@ -479,7 +473,7 @@ struct sk_buff *ndisc_build_skb(struct net_device *dev,
opt = skb_transport_header(skb) + sizeof(struct icmp6hdr);
if (target) {
- ipv6_addr_copy((struct in6_addr *)opt, target);
+ *(struct in6_addr *)opt = *target;
opt += sizeof(*target);
}
@@ -515,14 +509,7 @@ void ndisc_send_skb(struct sk_buff *skb,
type = icmp6h->icmp6_type;
icmpv6_flow_init(sk, &fl6, type, saddr, daddr, dev->ifindex);
-
- dst = icmp6_dst_alloc(dev, neigh, daddr);
- if (!dst) {
- kfree_skb(skb);
- return;
- }
-
- dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), NULL, 0);
+ dst = icmp6_dst_alloc(dev, neigh, &fl6);
if (IS_ERR(dst)) {
kfree_skb(skb);
return;
@@ -1237,7 +1224,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
rt = rt6_get_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev);
if (rt)
- neigh = dst_get_neighbour(&rt->dst);
+ neigh = dst_get_neighbour_noref(&rt->dst);
if (rt && lifetime == 0) {
neigh_clone(neigh);
@@ -1257,7 +1244,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
return;
}
- neigh = dst_get_neighbour(&rt->dst);
+ neigh = dst_get_neighbour_noref(&rt->dst);
if (neigh == NULL) {
ND_PRINTK0(KERN_ERR
"ICMPv6 RA: %s() got default router without neighbour.\n",
@@ -1271,7 +1258,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
}
if (rt)
- rt->rt6i_expires = jiffies + (HZ * lifetime);
+ rt->dst.expires = jiffies + (HZ * lifetime);
if (ra_msg->icmph.icmp6_hop_limit) {
in6_dev->cnf.hop_limit = ra_msg->icmph.icmp6_hop_limit;
@@ -1381,7 +1368,9 @@ skip_routeinfo:
for (p = ndopts.nd_opts_pi;
p;
p = ndisc_next_option(p, ndopts.nd_opts_pi_end)) {
- addrconf_prefix_rcv(skb->dev, (u8*)p, (p->nd_opt_len) << 3);
+ addrconf_prefix_rcv(skb->dev, (u8 *)p,
+ (p->nd_opt_len) << 3,
+ ndopts.nd_opts_src_lladdr != NULL);
}
}
@@ -1533,6 +1522,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
struct inet6_dev *idev;
struct flowi6 fl6;
u8 *opt;
+ int hlen, tlen;
int rd_len;
int err;
u8 ha_buf[MAX_ADDR_LEN], *ha = NULL;
@@ -1571,7 +1561,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
}
if (!rt->rt6i_peer)
rt6_bind_peer(rt, 1);
- if (inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ))
+ if (!inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ))
goto release;
if (dev->addr_len) {
@@ -1590,9 +1580,11 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
rd_len &= ~0x7;
len += rd_len;
+ hlen = LL_RESERVED_SPACE(dev);
+ tlen = dev->needed_tailroom;
buff = sock_alloc_send_skb(sk,
(MAX_HEADER + sizeof(struct ipv6hdr) +
- len + LL_ALLOCATED_SPACE(dev)),
+ len + hlen + tlen),
1, &err);
if (buff == NULL) {
ND_PRINTK0(KERN_ERR
@@ -1601,7 +1593,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
goto release;
}
- skb_reserve(buff, LL_RESERVED_SPACE(dev));
+ skb_reserve(buff, hlen);
ip6_nd_hdr(sk, buff, dev, &saddr_buf, &ipv6_hdr(skb)->saddr,
IPPROTO_ICMPV6, len);
@@ -1617,9 +1609,9 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
*/
addrp = (struct in6_addr *)(icmph + 1);
- ipv6_addr_copy(addrp, target);
+ *addrp = *target;
addrp++;
- ipv6_addr_copy(addrp, &ipv6_hdr(skb)->daddr);
+ *addrp = ipv6_hdr(skb)->daddr;
opt = (u8*) (addrp + 1);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 13:34:08 +0000