#include <linux/module.h>
#include <linux/capability.h>
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
DEFINE_SNMP_STAT(struct ipstats_mib, ipv6_statistics) __read_mostly;
+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;
+ int proto;
+
+ if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
+ goto out;
+
+ ipv6h = skb->nh.ipv6h;
+ proto = ipv6h->nexthdr;
+ __skb_pull(skb, sizeof(*ipv6h));
+
+ rcu_read_lock();
+ for (;;) {
+ struct ipv6_opt_hdr *opth;
+ int len;
+
+ if (proto != NEXTHDR_HOP) {
+ ops = rcu_dereference(inet6_protos[proto]);
+
+ if (unlikely(!ops))
+ goto unlock;
+
+ if (!(ops->flags & INET6_PROTO_GSO_EXTHDR))
+ break;
+ }
+
+ if (unlikely(!pskb_may_pull(skb, 8)))
+ goto unlock;
+
+ opth = (void *)skb->data;
+ len = opth->hdrlen * 8 + 8;
+
+ if (unlikely(!pskb_may_pull(skb, len)))
+ goto unlock;
+
+ proto = opth->nexthdr;
+ __skb_pull(skb, len);
+ }
+
+ skb->h.raw = skb->data;
+ if (likely(ops->gso_segment))
+ segs = ops->gso_segment(skb, features);
+
+unlock:
+ rcu_read_unlock();
+
+ if (unlikely(IS_ERR(segs)))
+ goto out;
+
+ for (skb = segs; skb; skb = skb->next) {
+ ipv6h = skb->nh.ipv6h;
+ ipv6h->payload_len = htons(skb->len - skb->mac_len);
+ }
+
+out:
+ return segs;
+}
+
static struct packet_type ipv6_packet_type = {
.type = __constant_htons(ETH_P_IPV6),
.func = ipv6_rcv,
+ .gso_segment = ipv6_gso_segment,
};
struct ip6_ra_chain *ip6_ra_chain;
#ifdef CONFIG_COMPAT
int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, int optlen)
{
int err;
if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
- if (udp_prot.compat_setsockopt)
- return udp_prot.compat_setsockopt(sk, level,
- optname, optval, optlen);
- else
- return udp_prot.setsockopt(sk, level,
- optname, optval, optlen);
+ if (udp_prot.compat_setsockopt != NULL)
+ return udp_prot.compat_setsockopt(sk, level, optname,
+ optval, optlen);
+ return udp_prot.setsockopt(sk, level, optname, optval, optlen);
}
if (level != SOL_IPV6)
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
- optname != IPV6_XFRM_POLICY) {
+ optname != IPV6_XFRM_POLICY) {
lock_sock(sk);
- err = compat_nf_setsockopt(sk, PF_INET6, optname, optval,
- optlen);
+ err = compat_nf_setsockopt(sk, PF_INET6, optname,
+ optval, optlen);
release_sock(sk);
}
#endif
return err;
}
+
+EXPORT_SYMBOL(compat_ipv6_setsockopt);
#endif
static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible EINVALs except default case */
- if (err == -ENOPROTOOPT && optname != IPV6_ADDRFORM &&
+ if (err == -EINVAL && optname != IPV6_ADDRFORM &&
optname != MCAST_MSFILTER) {
int len;
#ifdef CONFIG_COMPAT
int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen)
+ char __user *optval, int __user *optlen)
{
int err;
if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
- if (udp_prot.compat_getsockopt)
- return udp_prot.compat_getsockopt(sk, level,
- optname, optval, optlen);
- else
- return udp_prot.getsockopt(sk, level,
- optname, optval, optlen);
+ if (udp_prot.compat_getsockopt != NULL)
+ return udp_prot.compat_getsockopt(sk, level, optname,
+ optval, optlen);
+ return udp_prot.getsockopt(sk, level, optname, optval, optlen);
}
- if(level != SOL_IPV6)
+ if (level != SOL_IPV6)
return -ENOPROTOOPT;
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible EINVALs except default case */
- if (err == -ENOPROTOOPT && optname != IPV6_ADDRFORM &&
+ if (err == -EINVAL && optname != IPV6_ADDRFORM &&
optname != MCAST_MSFILTER) {
int len;
return -EFAULT;
lock_sock(sk);
- err = compat_nf_getsockopt(sk, PF_INET6, optname, optval,
- &len);
+ err = compat_nf_getsockopt(sk, PF_INET6,
+ optname, optval, &len);
release_sock(sk);
if (err >= 0)
err = put_user(len, optlen);
#endif
return err;
}
+
+EXPORT_SYMBOL(compat_ipv6_getsockopt);
#endif
void __init ipv6_packet_init(void)