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Diffstat (limited to 'net/sctp/ipv6.c')
-rw-r--r--net/sctp/ipv6.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 0657d18a85bf..f473779e8b1c 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -420,6 +420,7 @@ static void sctp_v6_from_skb(union sctp_addr *addr, struct sk_buff *skb,
addr->v6.sin6_flowinfo = 0; /* FIXME */
addr->v6.sin6_scope_id = ((struct inet6_skb_parm *)skb->cb)->iif;
+ /* Always called on head skb, so this is safe */
sh = sctp_hdr(skb);
if (is_saddr) {
*port = sh->source;
@@ -559,6 +560,7 @@ static int sctp_v6_is_any(const union sctp_addr *addr)
static int sctp_v6_available(union sctp_addr *addr, struct sctp_sock *sp)
{
int type;
+ struct net *net = sock_net(&sp->inet.sk);
const struct in6_addr *in6 = (const struct in6_addr *)&addr->v6.sin6_addr;
type = ipv6_addr_type(in6);
@@ -573,7 +575,8 @@ static int sctp_v6_available(union sctp_addr *addr, struct sctp_sock *sp)
if (!(type & IPV6_ADDR_UNICAST))
return 0;
- return ipv6_chk_addr(sock_net(&sp->inet.sk), in6, NULL, 0);
+ return sp->inet.freebind || net->ipv6.sysctl.ip_nonlocal_bind ||
+ ipv6_chk_addr(net, in6, NULL, 0);
}
/* This function checks if the address is a valid address to be used for
@@ -710,8 +713,7 @@ static int sctp_v6_addr_to_user(struct sctp_sock *sp, union sctp_addr *addr)
/* Where did this skb come from? */
static int sctp_v6_skb_iif(const struct sk_buff *skb)
{
- struct inet6_skb_parm *opt = (struct inet6_skb_parm *) skb->cb;
- return opt->iif;
+ return IP6CB(skb)->iif;
}
/* Was this packet marked by Explicit Congestion Notification? */
@@ -780,15 +782,14 @@ static void sctp_inet6_skb_msgname(struct sk_buff *skb, char *msgname,
if (ip_hdr(skb)->version == 4) {
addr->v4.sin_family = AF_INET;
addr->v4.sin_port = sh->source;
- addr->v4.sin_addr.s_addr = ip_hdr(skb)->saddr;
+ addr->v4.sin_addr.s_addr = ip_hdr(skb)->saddr;
} else {
addr->v6.sin6_family = AF_INET6;
addr->v6.sin6_flowinfo = 0;
addr->v6.sin6_port = sh->source;
addr->v6.sin6_addr = ipv6_hdr(skb)->saddr;
if (ipv6_addr_type(&addr->v6.sin6_addr) & IPV6_ADDR_LINKLOCAL) {
- struct sctp_ulpevent *ev = sctp_skb2event(skb);
- addr->v6.sin6_scope_id = ev->iif;
+ addr->v6.sin6_scope_id = sctp_v6_skb_iif(skb);
}
}
@@ -955,7 +956,7 @@ static const struct proto_ops inet6_seqpacket_ops = {
.setsockopt = sock_common_setsockopt,
.getsockopt = sock_common_getsockopt,
.sendmsg = inet_sendmsg,
- .recvmsg = sock_common_recvmsg,
+ .recvmsg = inet_recvmsg,
.mmap = sock_no_mmap,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,