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sctp: Support ipv6only AF_INET6 sockets.

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Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich
2008-07-18 23:05:40 -07:00
committed by David S. Miller
parent 6d0ccbac68
commit 7dab83de50
6 changed files with 93 additions and 10 deletions
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20
net/sctp/ipv6.c
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@@ -818,7 +818,7 @@ static int sctp_inet6_af_supported(sa_family_t family, struct sctp_sock *sp)
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;
@@ -840,6 +840,11 @@ static int sctp_inet6_cmp_addr(const union sctp_addr *addr1,
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;
@@ -876,7 +881,11 @@ static int sctp_inet6_bind_verify(struct sctp_sock *opt, union sctp_addr *addr)
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);
@@ -919,9 +928,12 @@ static int sctp_inet6_send_verify(struct sctp_sock *opt, union sctp_addr *addr)
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 = {