void pim_zebra_init (struct thread_master *master, char *zebra_sock_path)
{
int i;
if (zebra_sock_path)
zclient_serv_path_set(zebra_sock_path);
#ifdef HAVE_TCP_ZEBRA
zlog_notice("zclient update contacting ZEBRA daemon at socket TCP %s,%d", "127.0.0.1", ZEBRA_PORT);
#else
zlog_notice("zclient update contacting ZEBRA daemon at socket UNIX %s", zclient_serv_path_get());
#endif
/* Socket for receiving updates from Zebra daemon */
qpim_zclient_update = zclient_new (master);
qpim_zclient_update->zebra_connected = pim_zebra_connected;
qpim_zclient_update->router_id_update = pim_router_id_update_zebra;
qpim_zclient_update->interface_add = pim_zebra_if_add;
qpim_zclient_update->interface_delete = pim_zebra_if_del;
qpim_zclient_update->interface_up = pim_zebra_if_state_up;
qpim_zclient_update->interface_down = pim_zebra_if_state_down;
qpim_zclient_update->interface_address_add = pim_zebra_if_address_add;
qpim_zclient_update->interface_address_delete = pim_zebra_if_address_del;
qpim_zclient_update->ipv4_route_add = redist_read_ipv4_route;
qpim_zclient_update->ipv4_route_delete = redist_read_ipv4_route;
zclient_init(qpim_zclient_update, ZEBRA_ROUTE_PIM);
if (PIM_DEBUG_PIM_TRACE) {
zlog_info("zclient_init cleared redistribution request");
}
zassert(qpim_zclient_update->redist_default == ZEBRA_ROUTE_PIM);
/* Request all redistribution */
for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
if (i == qpim_zclient_update->redist_default)
continue;
vrf_bitmap_set(qpim_zclient_update->redist[i], VRF_DEFAULT);
if (PIM_DEBUG_PIM_TRACE) {
zlog_debug("%s: requesting redistribution for %s (%i)",
__PRETTY_FUNCTION__, zebra_route_string(i), i);
}
}
/* Request default information */
vrf_bitmap_set(qpim_zclient_update->default_information, VRF_DEFAULT);
if (PIM_DEBUG_PIM_TRACE) {
zlog_info("%s: requesting default information redistribution",
__PRETTY_FUNCTION__);
zlog_notice("%s: zclient update socket initialized",
__PRETTY_FUNCTION__);
}
zassert(!qpim_zclient_lookup);
qpim_zclient_lookup = zclient_lookup_new();
zassert(qpim_zclient_lookup);
}
/* Send requests to zebra daemon for the information in a VRF. */
void
zclient_send_requests (struct zclient *zclient, vrf_id_t vrf_id)
{
int i;
/* zclient is disabled. */
if (! zclient->enable)
return;
/* If not connected to the zebra yet. */
if (zclient->sock < 0)
return;
if (zclient_debug)
zlog_debug ("%s: send messages for VRF %u", __func__, vrf_id);
/* We need router-id information. */
zebra_message_send (zclient, ZEBRA_ROUTER_ID_ADD, vrf_id);
/* We need interface information. */
zebra_message_send (zclient, ZEBRA_INTERFACE_ADD, vrf_id);
/* Set unwanted redistribute route. */
vrf_bitmap_set (zclient->redist[zclient->redist_default], vrf_id);
/* Flush all redistribute request. */
for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
if (i != zclient->redist_default &&
vrf_bitmap_check (zclient->redist[i], vrf_id))
zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD, zclient, i, vrf_id);
/* If default information is needed. */
if (vrf_bitmap_check (zclient->default_information, VRF_DEFAULT))
zebra_message_send (zclient, ZEBRA_REDISTRIBUTE_DEFAULT_ADD, vrf_id);
}
void
zclient_redistribute_default (int command, struct zclient *zclient,
vrf_id_t vrf_id)
{
if (command == ZEBRA_REDISTRIBUTE_DEFAULT_ADD)
{
if (vrf_bitmap_check (zclient->default_information, vrf_id))
return;
vrf_bitmap_set (zclient->default_information, vrf_id);
}
else
{
if (!vrf_bitmap_check (zclient->default_information, vrf_id))
return;
vrf_bitmap_unset (zclient->default_information, vrf_id);
}
if (zclient->sock > 0)
zebra_message_send (zclient, command, vrf_id);
}
void
zclient_redistribute (int command, struct zclient *zclient, int type,
vrf_id_t vrf_id)
{
if (command == ZEBRA_REDISTRIBUTE_ADD)
{
if (vrf_bitmap_check (zclient->redist[type], vrf_id))
return;
vrf_bitmap_set (zclient->redist[type], vrf_id);
}
else
{
if (!vrf_bitmap_check (zclient->redist[type], vrf_id))
return;
vrf_bitmap_unset (zclient->redist[type], vrf_id);
}
if (zclient->sock > 0)
zebra_redistribute_send (command, zclient, type, vrf_id);
}
/* Other routes redistribution into BGP. */
int
bgp_redistribute_set (struct bgp *bgp, afi_t afi, int type)
{
/* Set flag to BGP instance. */
bgp->redist[afi][type] = 1;
/* Return if already redistribute flag is set. */
if (vrf_bitmap_check (zclient->redist[type], VRF_DEFAULT))
return CMD_WARNING;
vrf_bitmap_set (zclient->redist[type], VRF_DEFAULT);
/* Return if zebra connection is not established. */
if (zclient->sock < 0)
return CMD_WARNING;
if (BGP_DEBUG(zebra, ZEBRA))
zlog_debug("Zebra send: redistribute add %s", zebra_route_string(type));
/* Send distribute add message to zebra. */
zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD, zclient, type, VRF_DEFAULT);
return CMD_SUCCESS;
}