Solaris doesn't have an easy way to retrieve the MAC address of the client
that is soliciting the DHCPv6 IP address. This fix uses a simple way to
retrieve the client MAC address from the client's EUI64 link-local address.
*** dnsmasq-2.68/src/dhcp6.c 2013-12-08 07:58:29.000000000 -0800
--- NEW/src/dhcp6.c 2015-02-23 18:33:30.937299563 -0800
***************
*** 231,236 ****
--- 231,253 ----
void get_client_mac(struct in6_addr *client, int iface, unsigned char *mac, unsigned int *maclenp, unsigned int *mactypep)
{
+ #ifdef HAVE_SOLARIS_NETWORK
+ /* Solaris does not have an easy way to retrieve MAC address for a given IPv6 address from the kernel.
+ For now the following workaround should work for OpenStack's needs. */
+ uint8_t *addr6;
+
+ *maclenp = ETHER_ADDR_LEN;
+ *mactypep = ARPHRD_ETHER;
+ /* Take the EUI64 based client's link-local address and convert it to client's MAC address.
+ For example: from fe80::f816:3eff:fe5c:df43 link-local address we arrive at fa:16:3e:5c:df:43 */
+ addr6 = client->s6_addr;
+ mac[0] = addr6[8] ^ 0x2;
+ mac[1] = addr6[9];
+ mac[2] = addr6[10];
+ mac[3] = addr6[13];
+ mac[4] = addr6[14];
+ mac[5]= addr6[15];
+ #else
/* Recieving a packet from a host does not populate the neighbour
cache, so we send a neighbour discovery request if we can't
find the sender. Repeat a few times in case of packet loss. */
***************
*** 276,281 ****
--- 293,299 ----
*maclenp = mac_param.maclen;
*mactypep = ARPHRD_ETHER;
+ #endif /* HAVE_SOLARIS_NETWORK */
}
static int find_mac(int family, char *addrp, char *mac, size_t maclen, void *parmv)