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path: root/net/ipv6/ipv6_sockglue.c
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Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
-rw-r--r--net/ipv6/ipv6_sockglue.c46
1 files changed, 34 insertions, 12 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index f5f9582a8d39..aa3d07c52a8f 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -101,14 +101,14 @@ static int ipv6_gso_send_check(struct sk_buff *skb)
if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
goto out;
- ipv6h = skb->nh.ipv6h;
+ 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->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = ops->gso_send_check(skb);
}
rcu_read_unlock();
@@ -137,14 +137,14 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
goto out;
- ipv6h = skb->nh.ipv6h;
+ 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->h.raw = skb->data;
+ skb_reset_transport_header(skb);
segs = ops->gso_segment(skb, features);
}
rcu_read_unlock();
@@ -153,7 +153,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
goto out;
for (skb = segs; skb; skb = skb->next) {
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
ipv6h->payload_len = htons(skb->len - skb->mac_len -
sizeof(*ipv6h));
}
@@ -694,7 +694,7 @@ done:
retv = ip6_ra_control(sk, val, NULL);
break;
case IPV6_MTU_DISCOVER:
- if (val<0 || val>2)
+ if (val<0 || val>3)
goto e_inval;
np->pmtudisc = val;
retv = 0;
@@ -761,6 +761,7 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname,
return err;
}
+EXPORT_SYMBOL(ipv6_setsockopt);
#ifdef CONFIG_COMPAT
int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
@@ -796,18 +797,37 @@ EXPORT_SYMBOL(compat_ipv6_setsockopt);
#endif
static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
- char __user *optval, int len)
+ int optname, char __user *optval, int len)
{
struct ipv6_opt_hdr *hdr;
- if (!opt || !opt->hopopt)
+ if (!opt)
+ return 0;
+
+ switch(optname) {
+ case IPV6_HOPOPTS:
+ hdr = opt->hopopt;
+ break;
+ case IPV6_RTHDRDSTOPTS:
+ hdr = opt->dst0opt;
+ break;
+ case IPV6_RTHDR:
+ hdr = (struct ipv6_opt_hdr *)opt->srcrt;
+ break;
+ case IPV6_DSTOPTS:
+ hdr = opt->dst1opt;
+ break;
+ default:
+ return -EINVAL; /* should not happen */
+ }
+
+ if (!hdr)
return 0;
- hdr = opt->hopopt;
len = min_t(unsigned int, len, ipv6_optlen(hdr));
- if (copy_to_user(optval, hdr, ipv6_optlen(hdr)))
+ if (copy_to_user(optval, hdr, len));
return -EFAULT;
- return len;
+ return ipv6_optlen(hdr);
}
static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
@@ -945,7 +965,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
lock_sock(sk);
len = ipv6_getsockopt_sticky(sk, np->opt,
- optval, len);
+ optname, optval, len);
release_sock(sk);
return put_user(len, optlen);
}
@@ -1066,6 +1086,8 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
return err;
}
+EXPORT_SYMBOL(ipv6_getsockopt);
+
#ifdef CONFIG_COMPAT
int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)