new feature: If the user attribute "Framed-IPv6-Address" is defined then the ICMPv6_R...

[l2tpns.git] / icmp.c

diff --git a/icmp.c b/icmp.c
index 0d6c65e..d2f53e0 100644 (file)
--- a/icmp.c
+++ b/icmp.c
@@ -143,7 +143,13 @@ void send_ipv6_ra(sessionidt s, tunnelidt t, struct in6_addr *ip)
        pinfo->nd_opt_pi_preferred_time = htonl(604800);
        pinfo->nd_opt_pi_reserved2      = 0;
        pinfo->nd_opt_pi_prefix_len     = 64; // prefix length
-       pinfo->nd_opt_pi_prefix         = config->ipv6_prefix;
+       if (session[s].ipv6address.s6_addr[0])
+       {
+               // MSB 64bits of assigned IPv6 address to user (see radius attribut Framed-IPv6-Address)
+               memcpy(&pinfo->nd_opt_pi_prefix, &session[s].ipv6address.s6_addr[0], 8);
+       }
+       else
+               pinfo->nd_opt_pi_prefix     = config->ipv6_prefix;
 
        // // Length of payload (not header)
        p_ip6_hdr->ip6_plen = htons(sizeof(*pinfo) + sizeof(*p_nra));