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Diffstat (limited to 'net/ipv6/ndisc.c')
-rw-r--r--net/ipv6/ndisc.c36
1 files changed, 22 insertions, 14 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 14ecdaf06bf7..96f153c0846b 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -84,6 +84,7 @@ do { \
static u32 ndisc_hash(const void *pkey,
const struct net_device *dev,
__u32 *hash_rnd);
+static bool ndisc_key_eq(const struct neighbour *neigh, const void *pkey);
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);
@@ -117,7 +118,9 @@ static const struct neigh_ops ndisc_direct_ops = {
struct neigh_table nd_tbl = {
.family = AF_INET6,
.key_len = sizeof(struct in6_addr),
+ .protocol = cpu_to_be16(ETH_P_IPV6),
.hash = ndisc_hash,
+ .key_eq = ndisc_key_eq,
.constructor = ndisc_constructor,
.pconstructor = pndisc_constructor,
.pdestructor = pndisc_destructor,
@@ -294,6 +297,11 @@ static u32 ndisc_hash(const void *pkey,
return ndisc_hashfn(pkey, dev, hash_rnd);
}
+static bool ndisc_key_eq(const struct neighbour *n, const void *pkey)
+{
+ return neigh_key_eq128(n, pkey);
+}
+
static int ndisc_constructor(struct neighbour *neigh)
{
struct in6_addr *addr = (struct in6_addr *)&neigh->primary_key;
@@ -303,7 +311,7 @@ static int ndisc_constructor(struct neighbour *neigh)
bool is_multicast = ipv6_addr_is_multicast(addr);
in6_dev = in6_dev_get(dev);
- if (in6_dev == NULL) {
+ if (!in6_dev) {
return -EINVAL;
}
@@ -348,7 +356,7 @@ static int pndisc_constructor(struct pneigh_entry *n)
struct in6_addr maddr;
struct net_device *dev = n->dev;
- if (dev == NULL || __in6_dev_get(dev) == NULL)
+ if (!dev || !__in6_dev_get(dev))
return -EINVAL;
addrconf_addr_solict_mult(addr, &maddr);
ipv6_dev_mc_inc(dev, &maddr);
@@ -361,7 +369,7 @@ static void pndisc_destructor(struct pneigh_entry *n)
struct in6_addr maddr;
struct net_device *dev = n->dev;
- if (dev == NULL || __in6_dev_get(dev) == NULL)
+ if (!dev || !__in6_dev_get(dev))
return;
addrconf_addr_solict_mult(addr, &maddr);
ipv6_dev_mc_dec(dev, &maddr);
@@ -455,8 +463,9 @@ static void ndisc_send_skb(struct sk_buff *skb,
idev = __in6_dev_get(dst->dev);
IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
- err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL, dst->dev,
- dst_output);
+ err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
+ NULL, dst->dev,
+ dst_output_sk);
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, type);
ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);
@@ -552,7 +561,7 @@ void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,
int optlen = 0;
struct nd_msg *msg;
- if (saddr == NULL) {
+ if (!saddr) {
if (ipv6_get_lladdr(dev, &addr_buf,
(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC)))
return;
@@ -1022,13 +1031,13 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
size_t msg_size = base_size + nla_total_size(sizeof(struct in6_addr));
skb = nlmsg_new(msg_size, GFP_ATOMIC);
- if (skb == NULL) {
+ if (!skb) {
err = -ENOBUFS;
goto errout;
}
nlh = nlmsg_put(skb, 0, 0, RTM_NEWNDUSEROPT, base_size, 0);
- if (nlh == NULL) {
+ if (!nlh) {
goto nla_put_failure;
}
@@ -1041,8 +1050,7 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
memcpy(ndmsg + 1, opt, opt->nd_opt_len << 3);
- if (nla_put(skb, NDUSEROPT_SRCADDR, sizeof(struct in6_addr),
- &ipv6_hdr(ra)->saddr))
+ if (nla_put_in6_addr(skb, NDUSEROPT_SRCADDR, &ipv6_hdr(ra)->saddr))
goto nla_put_failure;
nlmsg_end(skb, nlh);
@@ -1096,7 +1104,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
*/
in6_dev = __in6_dev_get(skb->dev);
- if (in6_dev == NULL) {
+ if (!in6_dev) {
ND_PRINTK(0, err, "RA: can't find inet6 device for %s\n",
skb->dev->name);
return;
@@ -1191,11 +1199,11 @@ static void ndisc_router_discovery(struct sk_buff *skb)
ND_PRINTK(3, info, "RA: rt: %p lifetime: %d, for dev: %s\n",
rt, lifetime, skb->dev->name);
- if (rt == NULL && lifetime) {
+ if (!rt && lifetime) {
ND_PRINTK(3, info, "RA: adding default router\n");
rt = rt6_add_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev, pref);
- if (rt == NULL) {
+ if (!rt) {
ND_PRINTK(0, err,
"RA: %s failed to add default route\n",
__func__);
@@ -1203,7 +1211,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
}
neigh = dst_neigh_lookup(&rt->dst, &ipv6_hdr(skb)->saddr);
- if (neigh == NULL) {
+ if (!neigh) {
ND_PRINTK(0, err,
"RA: %s got default router without neighbour\n",
__func__);