/* Remove redistributed route from Babel table. */
int
babel_route_delete (struct zapi_route *api)
{
unsigned char uchar_prefix[16];
struct xroute *xroute = NULL;
switch (api->prefix.family) {
case AF_INET:
inaddr_to_uchar(uchar_prefix, &api->prefix.u.prefix4);
xroute = find_xroute(uchar_prefix, api->prefix.prefixlen + 96);
if (xroute != NULL) {
debugf(BABEL_DEBUG_ROUTE, "Removing ipv4 route (from zebra).");
flush_xroute(xroute);
}
break;
case AF_INET6:
in6addr_to_uchar(uchar_prefix, &api->prefix.u.prefix6);
xroute = find_xroute(uchar_prefix, api->prefix.prefixlen);
if (xroute != NULL) {
debugf(BABEL_DEBUG_ROUTE, "Removing ipv6 route (from zebra).");
flush_xroute(xroute);
}
break;
}
return 0;
}
static int
add_xroute(unsigned char prefix[16], unsigned char plen,
unsigned short metric, unsigned int ifindex, int proto)
{
struct xroute *xroute = find_xroute(prefix, plen);
if(xroute) {
if(xroute->metric <= metric)
return 0;
xroute->metric = metric;
return 1;
}
if(numxroutes >= maxxroutes) {
struct xroute *new_xroutes;
int n = maxxroutes < 1 ? 8 : 2 * maxxroutes;
new_xroutes = xroutes == NULL ?
malloc(n * sizeof(struct xroute)) :
realloc(xroutes, n * sizeof(struct xroute));
if(new_xroutes == NULL)
return -1;
maxxroutes = n;
xroutes = new_xroutes;
}
memcpy(xroutes[numxroutes].prefix, prefix, 16);
xroutes[numxroutes].plen = plen;
xroutes[numxroutes].metric = metric;
xroutes[numxroutes].ifindex = ifindex;
xroutes[numxroutes].proto = proto;
numxroutes++;
return 1;
}
int
add_xroute(unsigned char prefix[16], unsigned char plen,
unsigned char src_prefix[16], unsigned char src_plen,
unsigned short metric, unsigned int ifindex, int proto)
{
struct xroute *xroute = find_xroute(prefix, plen, src_prefix, src_plen);
if(xroute) {
if(xroute->metric <= metric)
return 0;
xroute->metric = metric;
local_notify_xroute(xroute, LOCAL_CHANGE);
return 1;
}
if(numxroutes >= maxxroutes) {
struct xroute *new_xroutes;
int n = maxxroutes < 1 ? 8 : 2 * maxxroutes;
new_xroutes = xroutes == NULL ?
malloc(n * sizeof(struct xroute)) :
realloc(xroutes, n * sizeof(struct xroute));
if(new_xroutes == NULL)
return -1;
maxxroutes = n;
xroutes = new_xroutes;
}
memcpy(xroutes[numxroutes].prefix, prefix, 16);
xroutes[numxroutes].plen = plen;
memcpy(xroutes[numxroutes].src_prefix, src_prefix, 16);
xroutes[numxroutes].src_plen = src_plen;
xroutes[numxroutes].metric = metric;
xroutes[numxroutes].ifindex = ifindex;
xroutes[numxroutes].proto = proto;
numxroutes++;
local_notify_xroute(&xroutes[numxroutes - 1], LOCAL_ADD);
return 1;
}
