/*
* Reflect base interface flags on VMAC interface.
* VMAC interfaces should never update it own flags, only be reflected
* by the base interface flags.
*/
static void
vmac_reflect_flags(struct ifinfomsg *ifi)
{
interface_t *ifp;
/* find the VMAC interface (if any) */
ifp = if_get_by_vmac_base_ifindex(ifi->ifi_index);
/* if found, reflect base interface flags on VMAC interface */
if (ifp) {
ifp->flags = ifi->ifi_flags;
}
}
/* Netlink flag Link update */
static int
netlink_reflect_filter(struct sockaddr_nl *snl, struct nlmsghdr *h)
{
struct ifinfomsg *ifi;
struct rtattr *tb[IFLA_MAX + 1];
interface_t *ifp;
int len;
ifi = NLMSG_DATA(h);
if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK))
return 0;
len = h->nlmsg_len - NLMSG_LENGTH(sizeof (struct ifinfomsg));
if (len < 0)
return -1;
/* Interface name lookup */
memset(tb, 0, sizeof (tb));
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
if (tb[IFLA_IFNAME] == NULL)
return -1;
/* ignore loopback device */
if (ifi->ifi_type == ARPHRD_LOOPBACK)
return 0;
/* find the VMAC interface (if any) */
ifp = if_get_by_vmac_base_ifindex(ifi->ifi_index);
/* if found, reflect base interface flags on VMAC interface */
if (ifp)
ifp->flags = ifi->ifi_flags;
/* find the interface_t */
ifp = if_get_by_ifindex(ifi->ifi_index);
if (!ifp)
return -1;
/*
* Update flags.
* VMAC interfaces should never update it own flags, only be reflected
* by the base interface flags, see above.
*/
if (!ifp->vmac)
ifp->flags = ifi->ifi_flags;
return 0;
}
