/* Fills in the source address(saddr) based on the destination address(daddr)
* and asoc's bind address list.
*/
-static void sctp_v6_get_saddr(struct sctp_association *asoc,
+static void sctp_v6_get_saddr(struct sctp_sock *sk,
+ struct sctp_association *asoc,
struct dst_entry *dst,
union sctp_addr *daddr,
union sctp_addr *saddr)
if (!asoc) {
ipv6_dev_get_saddr(dst ? ip6_dst_idev(dst)->dev : NULL,
&daddr->v6.sin6_addr,
- inet6_sk(asoc->base.sk)->srcprefs,
+ inet6_sk(&sk->inet.sk)->srcprefs,
&saddr->v6.sin6_addr);
SCTP_DEBUG_PRINTK("saddr from ipv6_get_saddr: " NIP6_FMT "\n",
NIP6(saddr->v6.sin6_addr));
seq_printf(seq, NIP6_FMT " ", NIP6(addr->v6.sin6_addr));
}
+static void sctp_v6_ecn_capable(struct sock *sk)
+{
+ inet6_sk(sk)->tclass |= INET_ECN_ECT_0;
+}
+
/* Initialize a PF_INET6 socket msg_name. */
static void sctp_inet6_msgname(char *msgname, int *addr_len)
{
return 1;
/* v4-mapped-v6 addresses */
case AF_INET:
- if (!__ipv6_only_sock(sctp_opt2sk(sp)) && sp->v4mapped)
+ if (!__ipv6_only_sock(sctp_opt2sk(sp)))
return 1;
default:
return 0;
if (!af1 || !af2)
return 0;
+
+ /* If the socket is IPv6 only, v4 addrs will not match */
+ if (__ipv6_only_sock(sctp_opt2sk(opt)) && af1 != af2)
+ return 0;
+
/* Today, wildcard AF_INET/AF_INET6. */
if (sctp_is_any(addr1) || sctp_is_any(addr2))
return 1;
return 0;
}
dev_put(dev);
+ } else if (type == IPV6_ADDR_MAPPED) {
+ if (!opt->v4mapped)
+ return 0;
}
+
af = opt->pf->af;
}
return af->available(addr, opt);
static int sctp_inet6_supported_addrs(const struct sctp_sock *opt,
__be16 *types)
{
- types[0] = SCTP_PARAM_IPV4_ADDRESS;
- types[1] = SCTP_PARAM_IPV6_ADDRESS;
- return 2;
+ types[0] = SCTP_PARAM_IPV6_ADDRESS;
+ if (!opt || !ipv6_only_sock(sctp_opt2sk(opt))) {
+ types[1] = SCTP_PARAM_IPV4_ADDRESS;
+ return 2;
+ }
+ return 1;
}
static const struct proto_ops inet6_seqpacket_ops = {
.skb_iif = sctp_v6_skb_iif,
.is_ce = sctp_v6_is_ce,
.seq_dump_addr = sctp_v6_seq_dump_addr,
+ .ecn_capable = sctp_v6_ecn_capable,
.net_header_len = sizeof(struct ipv6hdr),
.sockaddr_len = sizeof(struct sockaddr_in6),
#ifdef CONFIG_COMPAT