diff options
Diffstat (limited to 'slirp/ip6_icmp.c')
| -rw-r--r-- | slirp/ip6_icmp.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/slirp/ip6_icmp.c b/slirp/ip6_icmp.c index d0f5cc1456..777eb574be 100644 --- a/slirp/ip6_icmp.c +++ b/slirp/ip6_icmp.c @@ -144,6 +144,9 @@ void ndp_send_ra(Slirp *slirp) struct mbuf *t = m_get(slirp); struct ip6 *rip = mtod(t, struct ip6 *); size_t pl_size = 0; + struct in6_addr addr; + uint32_t scope_id; + rip->ip_src = (struct in6_addr)LINKLOCAL_ADDR; rip->ip_dst = (struct in6_addr)ALLNODES_MULTICAST; rip->ip_nh = IPPROTO_ICMPV6; @@ -189,18 +192,18 @@ void ndp_send_ra(Slirp *slirp) t->m_data += NDPOPT_PREFIXINFO_LEN; pl_size += NDPOPT_PREFIXINFO_LEN; -#ifndef _WIN32 /* Prefix information (NDP option) */ - /* disabled for windows for now, until get_dns6_addr is implemented */ - struct ndpopt *opt3 = mtod(t, struct ndpopt *); - opt3->ndpopt_type = NDPOPT_RDNSS; - opt3->ndpopt_len = NDPOPT_RDNSS_LEN / 8; - opt3->ndpopt_rdnss.reserved = 0; - opt3->ndpopt_rdnss.lifetime = htonl(2 * NDP_MaxRtrAdvInterval); - opt3->ndpopt_rdnss.addr = slirp->vnameserver_addr6; - t->m_data += NDPOPT_RDNSS_LEN; - pl_size += NDPOPT_RDNSS_LEN; -#endif + if (get_dns6_addr(&addr, &scope_id) >= 0) { + /* Host system does have an IPv6 DNS server, announce our proxy. */ + struct ndpopt *opt3 = mtod(t, struct ndpopt *); + opt3->ndpopt_type = NDPOPT_RDNSS; + opt3->ndpopt_len = NDPOPT_RDNSS_LEN / 8; + opt3->ndpopt_rdnss.reserved = 0; + opt3->ndpopt_rdnss.lifetime = htonl(2 * NDP_MaxRtrAdvInterval); + opt3->ndpopt_rdnss.addr = slirp->vnameserver_addr6; + t->m_data += NDPOPT_RDNSS_LEN; + pl_size += NDPOPT_RDNSS_LEN; + } rip->ip_pl = htons(pl_size); t->m_data -= sizeof(struct ip6) + pl_size; |