DEFINE_SNMP_STAT(struct ipstats_mib, ipv6_statistics) __read_mostly;
-static struct inet6_protocol *ipv6_gso_pull_exthdrs(struct sk_buff *skb,
- int proto)
-{
- struct inet6_protocol *ops = NULL;
-
- for (;;) {
- struct ipv6_opt_hdr *opth;
- int len;
-
- if (proto != NEXTHDR_HOP) {
- ops = rcu_dereference(inet6_protos[proto]);
-
- if (unlikely(!ops))
- break;
-
- if (!(ops->flags & INET6_PROTO_GSO_EXTHDR))
- break;
- }
-
- if (unlikely(!pskb_may_pull(skb, 8)))
- break;
-
- opth = (void *)skb->data;
- len = opth->hdrlen * 8 + 8;
-
- if (unlikely(!pskb_may_pull(skb, len)))
- break;
-
- proto = opth->nexthdr;
- __skb_pull(skb, len);
- }
-
- return ops;
-}
-
-static int ipv6_gso_send_check(struct sk_buff *skb)
-{
- struct ipv6hdr *ipv6h;
- struct inet6_protocol *ops;
- int err = -EINVAL;
-
- if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
- goto out;
-
- ipv6h = ipv6_hdr(skb);
- __skb_pull(skb, sizeof(*ipv6h));
- err = -EPROTONOSUPPORT;
-
- rcu_read_lock();
- ops = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
- if (likely(ops && ops->gso_send_check)) {
- skb_reset_transport_header(skb);
- err = ops->gso_send_check(skb);
- }
- rcu_read_unlock();
-
-out:
- return err;
-}
-
-static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
-{
- struct sk_buff *segs = ERR_PTR(-EINVAL);
- struct ipv6hdr *ipv6h;
- struct inet6_protocol *ops;
-
- if (!(features & NETIF_F_V6_CSUM))
- features &= ~NETIF_F_SG;
-
- if (unlikely(skb_shinfo(skb)->gso_type &
- ~(SKB_GSO_UDP |
- SKB_GSO_DODGY |
- SKB_GSO_TCP_ECN |
- SKB_GSO_TCPV6 |
- 0)))
- goto out;
-
- if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
- goto out;
-
- ipv6h = ipv6_hdr(skb);
- __skb_pull(skb, sizeof(*ipv6h));
- segs = ERR_PTR(-EPROTONOSUPPORT);
-
- rcu_read_lock();
- ops = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
- if (likely(ops && ops->gso_segment)) {
- skb_reset_transport_header(skb);
- segs = ops->gso_segment(skb, features);
- }
- rcu_read_unlock();
-
- if (unlikely(IS_ERR(segs)))
- goto out;
-
- for (skb = segs; skb; skb = skb->next) {
- ipv6h = ipv6_hdr(skb);
- ipv6h->payload_len = htons(skb->len - skb->mac_len -
- sizeof(*ipv6h));
- }
-
-out:
- return segs;
-}
-
-static struct packet_type ipv6_packet_type = {
- .type = __constant_htons(ETH_P_IPV6),
- .func = ipv6_rcv,
- .gso_send_check = ipv6_gso_send_check,
- .gso_segment = ipv6_gso_segment,
-};
-
struct ip6_ra_chain *ip6_ra_chain;
DEFINE_RWLOCK(ip6_ra_lock);
char __user *optval, int optlen)
{
struct ipv6_pinfo *np = inet6_sk(sk);
+ struct net *net = sk->sk_net;
int val, valbool;
int retv = -ENOPROTOOPT;
}
if (ipv6_only_sock(sk) ||
- !(ipv6_addr_type(&np->daddr) & IPV6_ADDR_MAPPED)) {
+ !ipv6_addr_v4mapped(&np->daddr)) {
retv = -EADDRNOTAVAIL;
break;
}
struct inet_connection_sock *icsk = inet_csk(sk);
local_bh_disable();
- sock_prot_dec_use(sk->sk_prot);
- sock_prot_inc_use(&tcp_prot);
+ sock_prot_inuse_add(sk->sk_prot, -1);
+ sock_prot_inuse_add(&tcp_prot, 1);
local_bh_enable();
sk->sk_prot = &tcp_prot;
icsk->icsk_af_ops = &ipv4_specific;
if (sk->sk_protocol == IPPROTO_UDPLITE)
prot = &udplite_prot;
local_bh_disable();
- sock_prot_dec_use(sk->sk_prot);
- sock_prot_inc_use(prot);
+ sock_prot_inuse_add(sk->sk_prot, -1);
+ sock_prot_inuse_add(prot, 1);
local_bh_enable();
sk->sk_prot = prot;
sk->sk_socket->ops = &inet_dgram_ops;
case IPV6_MULTICAST_IF:
if (sk->sk_type == SOCK_STREAM)
goto e_inval;
- if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != val)
- goto e_inval;
- if (__dev_get_by_index(val) == NULL) {
- retv = -ENODEV;
- break;
+ if (val) {
+ if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != val)
+ goto e_inval;
+
+ if (__dev_get_by_index(net, val) == NULL) {
+ retv = -ENODEV;
+ break;
+ }
}
np->mcast_oif = val;
retv = 0;
break;
}
gsf = kmalloc(optlen,GFP_KERNEL);
- if (gsf == 0) {
+ if (!gsf) {
retv = -ENOBUFS;
break;
}
dst = sk_dst_get(sk);
if (dst) {
if (val < 0)
- val = dst_metric(dst, RTAX_HOPLIMIT);
- if (val < 0)
- val = ipv6_get_hoplimit(dst->dev);
+ val = ip6_dst_hoplimit(dst);
dst_release(dst);
}
if (val < 0)
break;
default:
- return -EINVAL;
+ return -ENOPROTOOPT;
}
len = min_t(unsigned int, sizeof(int), len);
if(put_user(len, optlen))
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
- /* we need to exclude all possible EINVALs except default case */
- if (err == -EINVAL && optname != IPV6_ADDRFORM &&
- optname != MCAST_MSFILTER) {
+ /* we need to exclude all possible ENOPROTOOPTs except default case */
+ if (err == -ENOPROTOOPT && optname != IPV6_2292PKTOPTIONS) {
int len;
if (get_user(len, optlen))
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
- /* we need to exclude all possible EINVALs except default case */
- if (err == -EINVAL && optname != IPV6_ADDRFORM &&
- optname != MCAST_MSFILTER) {
+ /* we need to exclude all possible ENOPROTOOPTs except default case */
+ if (err == -ENOPROTOOPT && optname != IPV6_2292PKTOPTIONS) {
int len;
if (get_user(len, optlen))
EXPORT_SYMBOL(compat_ipv6_getsockopt);
#endif
-void __init ipv6_packet_init(void)
-{
- dev_add_pack(&ipv6_packet_type);
-}
-
-void ipv6_packet_cleanup(void)
-{
- dev_remove_pack(&ipv6_packet_type);
-}
projects / deliverable / linux.git / blobdiff