static void
print_rnh (struct route_node *rn, struct vty *vty)
{
struct rnh *rnh;
struct nexthop *nexthop;
struct listnode *node;
struct zserv *client;
char buf[BUFSIZ];
rnh = rn->info;
vty_out(vty, "%s%s", inet_ntop(rn->p.family, &rn->p.u.prefix, buf, BUFSIZ),
VTY_NEWLINE);
if (rnh->state)
{
vty_out(vty, " resolved via %s%s",
zebra_route_string(rnh->state->type), VTY_NEWLINE);
for (nexthop = rnh->state->nexthop; nexthop; nexthop = nexthop->next)
print_nh(nexthop, vty);
}
else
vty_out(vty, " unresolved%s%s",
CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED) ? "(Connected)" : "",
VTY_NEWLINE);
vty_out(vty, " Client list:");
for (ALL_LIST_ELEMENTS_RO(rnh->client_list, node, client))
vty_out(vty, " %s(fd %d)", zebra_route_string(client->proto),
client->sock);
vty_out(vty, "%s", VTY_NEWLINE);
}
void
isis_redist_delete(int type, struct prefix *p)
{
int family = p->family;
struct route_table *ei_table = get_ext_info(isis, family);
struct route_node *ei_node;
struct listnode *node;
struct isis_area *area;
int level;
struct isis_redist *redist;
char debug_buf[BUFSIZ];
prefix2str(p, debug_buf, sizeof(debug_buf));
zlog_debug("%s: Removing route %s from %s.", __func__, debug_buf,
zebra_route_string(type));
if (is_default(p))
{
/* Don't remove default route but add synthetic route for use
* by "default-information originate always". Areas without the
* "always" setting will ignore routes with origin DEFAULT_ROUTE. */
isis_redist_add(DEFAULT_ROUTE, p, 254, MAX_WIDE_PATH_METRIC);
return;
}
if (!ei_table)
{
zlog_warn("%s: External information table not initialized.",
__func__);
return;
}
ei_node = route_node_lookup(ei_table, p);
if (!ei_node || !ei_node->info)
{
char buf[BUFSIZ];
prefix2str(p, buf, sizeof(buf));
zlog_warn("%s: Got a delete for %s route %s, but that route"
" was never added.", __func__, zebra_route_string(type),
buf);
if (ei_node)
route_unlock_node(ei_node);
return;
}
route_unlock_node(ei_node);
for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area))
for (level = 1; level < ISIS_LEVELS; level++)
{
redist = get_redist_settings(area, family, type, level);
if (!redist->redist)
continue;
isis_redist_uninstall(area, level, p);
}
XFREE(MTYPE_ISIS, ei_node->info);
route_unlock_node(ei_node);
}
int
zebra_dispatch_rnh_table (vrf_id_t vrfid, int family, struct zserv *client)
{
struct route_table *ntable;
struct route_node *nrn;
struct rnh *rnh;
ntable = lookup_rnh_table(vrfid, family);
if (!ntable)
{
zlog_debug("dispatch_rnh_table: rnh table not found\n");
return -1;
}
for (nrn = route_top (ntable); nrn; nrn = route_next (nrn))
{
if (!nrn->info)
continue;
rnh = nrn->info;
if (IS_ZEBRA_DEBUG_NHT)
{
char bufn[INET6_ADDRSTRLEN];
prefix2str(&nrn->p, bufn, INET6_ADDRSTRLEN);
zlog_debug("rnh %s - sending nexthop %s event to client %s", bufn,
rnh->state ? "reachable" : "unreachable",
zebra_route_string(client->proto));
}
send_client(rnh, client, vrfid);
}
return 1;
}
int
zebra_cleanup_rnh_client (vrf_id_t vrfid, int family, struct zserv *client)
{
struct route_table *ntable;
struct route_node *nrn;
struct rnh *rnh;
ntable = lookup_rnh_table(vrfid, family);
if (!ntable)
{
zlog_debug("cleanup_rnh_client: rnh table not found\n");
return -1;
}
for (nrn = route_top (ntable); nrn; nrn = route_next (nrn))
{
if (!nrn->info)
continue;
rnh = nrn->info;
if (IS_ZEBRA_DEBUG_NHT)
{
char bufn[INET6_ADDRSTRLEN];
prefix2str(&nrn->p, bufn, INET6_ADDRSTRLEN);
zlog_debug("rnh %s - cleaning state for client %s", bufn,
zebra_route_string(client->proto));
}
zebra_remove_rnh_client(rnh, client);
}
return 1;
}
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);
}
void rip_show_redistribute_config(struct vty *vty, struct rip *rip)
{
for (int i = 0; i < ZEBRA_ROUTE_MAX; i++) {
if (i == zclient->redist_default
|| !rip_redistribute_check(rip, i))
continue;
vty_out(vty, " %s", zebra_route_string(i));
}
}
void
zebra_remove_rnh_client (struct rnh *rnh, struct zserv *client)
{
if (IS_ZEBRA_DEBUG_NHT)
{
char buf[INET6_ADDRSTRLEN];
zlog_debug("client %s unregisters rnh %s",
zebra_route_string(client->proto),
rnh_str(rnh, buf, INET6_ADDRSTRLEN));
}
listnode_delete(rnh->client_list, client);
if (list_isempty(rnh->client_list))
zebra_delete_rnh(rnh);
}
/* If client sent routes of specific type, zebra removes it
* and returns number of deleted routes.
*/
static void
zebra_score_rib (int client_sock)
{
int i;
for (i = ZEBRA_ROUTE_RIP; i < ZEBRA_ROUTE_MAX; i++)
if (client_sock == route_type_oaths[i])
{
zlog_notice ("client %d disconnected. %lu %s routes removed from the rib",
client_sock, rib_score_proto (i), zebra_route_string (i));
route_type_oaths[i] = 0;
break;
}
}
/* Tie up route-type and client->sock */
static void
zread_hello (struct zserv *client)
{
/* type of protocol (lib/zebra.h) */
u_char proto;
proto = stream_getc (client->ibuf);
/* accept only dynamic routing protocols */
if ((proto < ZEBRA_ROUTE_MAX)
&& (proto > ZEBRA_ROUTE_STATIC))
{
zlog_notice ("client %d says hello and bids fair to announce only %s routes",
client->sock, zebra_route_string(proto));
/* if route-type was binded by other client */
if (route_type_oaths[proto])
zlog_warn ("sender of %s routes changed %c->%c",
zebra_route_string(proto), route_type_oaths[proto],
client->sock);
route_type_oaths[proto] = client->sock;
}
}
/* print current babel configuration on vty */
static int
babel_config_write (struct vty *vty)
{
int lines = 0;
int i;
/* list enabled debug modes */
lines += debug_babel_config_write (vty);
if (!babel_routing_process)
return lines;
vty_out (vty, "router babel%s", VTY_NEWLINE);
if (diversity_kind != DIVERSITY_NONE)
{
vty_out (vty, " babel diversity%s", VTY_NEWLINE);
lines++;
}
if (diversity_factor != BABEL_DEFAULT_DIVERSITY_FACTOR)
{
vty_out (vty, " babel diversity-factor %d%s", diversity_factor,
VTY_NEWLINE);
lines++;
}
if (resend_delay != BABEL_DEFAULT_RESEND_DELAY)
{
vty_out (vty, " babel resend-delay %u%s", resend_delay, VTY_NEWLINE);
lines++;
}
if (smoothing_half_life != BABEL_DEFAULT_SMOOTHING_HALF_LIFE)
{
vty_out (vty, " babel smoothing-half-life %u%s",
smoothing_half_life, VTY_NEWLINE);
lines++;
}
lines += babel_auth_config_write (vty);
/* list enabled interfaces */
lines = 1 + babel_enable_if_config_write (vty);
/* list redistributed protocols */
for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
if (i != zclient->redist_default && zclient->redist[i])
{
vty_out (vty, " redistribute %s%s", zebra_route_string (i), VTY_NEWLINE);
lines++;
}
lines += config_write_distribute (vty);
return lines;
}
/* Handle notification about route being added */
void
isis_redist_add(int type, struct prefix *p, u_char distance, uint32_t metric)
{
int family = p->family;
struct route_table *ei_table = get_ext_info(isis, family);
struct route_node *ei_node;
struct isis_ext_info *info;
struct listnode *node;
struct isis_area *area;
int level;
struct isis_redist *redist;
char debug_buf[BUFSIZ];
prefix2str(p, debug_buf, sizeof(debug_buf));
zlog_debug("%s: New route %s from %s.", __func__, debug_buf,
zebra_route_string(type));
if (!ei_table)
{
zlog_warn("%s: External information table not initialized.",
__func__);
return;
}
ei_node = route_node_get(ei_table, p);
if (ei_node->info)
route_unlock_node(ei_node);
else
ei_node->info = XCALLOC(MTYPE_ISIS, sizeof(struct isis_ext_info));
info = ei_node->info;
info->origin = type;
info->distance = distance;
info->metric = metric;
if (is_default(p))
type = DEFAULT_ROUTE;
for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area))
for (level = 1; level <= ISIS_LEVELS; level++)
{
redist = get_redist_settings(area, family, type, level);
if (!redist->redist)
continue;
isis_redist_update_ext_reach(area, level, redist, p, info);
}
}
void
zebra_add_rnh_client (struct rnh *rnh, struct zserv *client, vrf_id_t vrf_id)
{
if (IS_ZEBRA_DEBUG_NHT)
{
char buf[INET6_ADDRSTRLEN];
zlog_debug("client %s registers rnh %s",
zebra_route_string(client->proto),
rnh_str(rnh, buf, INET6_ADDRSTRLEN));
}
if (!listnode_lookup(rnh->client_list, client))
{
listnode_add(rnh->client_list, client);
send_client(rnh, client, vrf_id);
}
}
/* Unset redistribution. */
int
bgp_redistribute_unset (struct bgp *bgp, afi_t afi, int type)
{
/* Unset flag from BGP instance. */
bgp->redist[afi][type] = 0;
/* Unset route-map. */
if (bgp->rmap[afi][type].name)
free (bgp->rmap[afi][type].name);
bgp->rmap[afi][type].name = NULL;
bgp->rmap[afi][type].map = NULL;
/* Unset metric. */
bgp->redist_metric_flag[afi][type] = 0;
bgp->redist_metric[afi][type] = 0;
/* Return if zebra connection is disabled. */
if (! vrf_bitmap_check (zclient->redist[type], VRF_DEFAULT))
return CMD_WARNING;
vrf_bitmap_unset (zclient->redist[type], VRF_DEFAULT);
if (bgp->redist[AFI_IP][type] == 0
&& bgp->redist[AFI_IP6][type] == 0
&& zclient->sock >= 0)
{
/* Send distribute delete message to zebra. */
if (BGP_DEBUG(zebra, ZEBRA))
zlog_debug("Zebra send: redistribute delete %s",
zebra_route_string(type));
zebra_redistribute_send (ZEBRA_REDISTRIBUTE_DELETE, zclient, type,
VRF_DEFAULT);
}
/* Withdraw redistributed routes from current BGP's routing table. */
bgp_redistribute_withdraw (bgp, afi, type);
return CMD_SUCCESS;
}
/* 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 (zclient->redist[type])
return CMD_WARNING;
zclient->redist[type] = 1;
/* 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);
return CMD_SUCCESS;
}
/* Zebra route add and delete treatment. */
static int
zebra_read_ipv4 (int command, struct zclient *zclient, zebra_size_t length,
vrf_id_t vrf_id)
{
struct stream *s;
struct zapi_ipv4 api;
struct in_addr nexthop;
struct prefix_ipv4 p;
unsigned char plength = 0;
s = zclient->ibuf;
nexthop.s_addr = 0;
/* Type, flags, message. */
api.type = stream_getc (s);
api.flags = stream_getc (s);
api.message = stream_getc (s);
/* IPv4 prefix. */
memset (&p, 0, sizeof (struct prefix_ipv4));
p.family = AF_INET;
plength = stream_getc (s);
p.prefixlen = MIN(IPV4_MAX_PREFIXLEN, plength);
stream_get (&p.prefix, s, PSIZE (p.prefixlen));
/* Nexthop, ifindex, distance, metric. */
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
{
api.nexthop_num = stream_getc (s);
nexthop.s_addr = stream_get_ipv4 (s);
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX))
{
api.ifindex_num = stream_getc (s);
stream_getl (s); /* ifindex, unused */
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
api.distance = stream_getc (s);
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
api.metric = stream_getl (s);
else
api.metric = 0;
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG))
api.tag = stream_getl (s);
else
api.tag = 0;
if (command == ZEBRA_IPV4_ROUTE_ADD)
{
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET_ADDRSTRLEN];
zlog_debug("Zebra rcvd: IPv4 route add %s %s/%d nexthop %s metric %u tag %d",
zebra_route_string(api.type),
inet_ntop(AF_INET, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])),
api.metric,
api.tag);
}
bgp_redistribute_add ((struct prefix *)&p, &nexthop, NULL,
api.metric, api.type, api.tag);
}
else
{
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET_ADDRSTRLEN];
zlog_debug("Zebra rcvd: IPv4 route delete %s %s/%d "
"nexthop %s metric %u tag %d",
zebra_route_string(api.type),
inet_ntop(AF_INET, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])),
api.metric,
api.tag);
}
bgp_redistribute_delete((struct prefix *)&p, api.type);
}
return 0;
}
static int redist_read_ipv4_route(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct stream *s;
struct zapi_ipv4 api;
unsigned long ifindex;
struct in_addr nexthop;
struct prefix_ipv4 p;
int min_len = 4;
if (length < min_len) {
zlog_warn("%s %s: short buffer: length=%d min=%d",
__FILE__, __PRETTY_FUNCTION__,
length, min_len);
return -1;
}
s = zclient->ibuf;
ifindex = 0;
nexthop.s_addr = 0;
/* Type, flags, message. */
api.type = stream_getc(s);
api.flags = stream_getc(s);
api.message = stream_getc(s);
/* IPv4 prefix length. */
memset(&p, 0, sizeof(struct prefix_ipv4));
p.family = AF_INET;
p.prefixlen = stream_getc(s);
min_len +=
PSIZE(p.prefixlen) +
CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP) ? 5 : 0 +
CHECK_FLAG(api.message, ZAPI_MESSAGE_IFINDEX) ? 5 : 0 +
CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE) ? 1 : 0 +
CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC) ? 4 : 0;
if (PIM_DEBUG_ZEBRA) {
zlog_debug("%s %s: length=%d min_len=%d flags=%s%s%s%s",
__FILE__, __PRETTY_FUNCTION__,
length, min_len,
CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP) ? "nh" : "",
CHECK_FLAG(api.message, ZAPI_MESSAGE_IFINDEX) ? " ifi" : "",
CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE) ? " dist" : "",
CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC) ? " metr" : "");
}
if (length < min_len) {
zlog_warn("%s %s: short buffer: length=%d min_len=%d flags=%s%s%s%s",
__FILE__, __PRETTY_FUNCTION__,
length, min_len,
CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP) ? "nh" : "",
CHECK_FLAG(api.message, ZAPI_MESSAGE_IFINDEX) ? " ifi" : "",
CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE) ? " dist" : "",
CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC) ? " metr" : "");
return -1;
}
/* IPv4 prefix. */
stream_get(&p.prefix, s, PSIZE(p.prefixlen));
/* Nexthop, ifindex, distance, metric. */
if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) {
api.nexthop_num = stream_getc(s);
nexthop.s_addr = stream_get_ipv4(s);
}
if (CHECK_FLAG(api.message, ZAPI_MESSAGE_IFINDEX)) {
api.ifindex_num = stream_getc(s);
ifindex = stream_getl(s);
}
api.distance = CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE) ?
stream_getc(s) :
0;
api.metric = CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC) ?
stream_getl(s) :
0;
switch (command) {
case ZEBRA_IPV4_ROUTE_ADD:
if (PIM_DEBUG_ZEBRA) {
char buf[2][INET_ADDRSTRLEN];
zlog_debug("%s: add %s %s/%d "
"nexthop %s ifindex %ld metric%s %u distance%s %u",
__PRETTY_FUNCTION__,
zebra_route_string(api.type),
inet_ntop(AF_INET, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])),
ifindex,
CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC) ? "-recv" : "-miss",
api.metric,
CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE) ? "-recv" : "-miss",
api.distance);
}
break;
case ZEBRA_IPV4_ROUTE_DELETE:
if (PIM_DEBUG_ZEBRA) {
char buf[2][INET_ADDRSTRLEN];
zlog_debug("%s: delete %s %s/%d "
"nexthop %s ifindex %ld metric%s %u distance%s %u",
__PRETTY_FUNCTION__,
zebra_route_string(api.type),
inet_ntop(AF_INET, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])),
ifindex,
CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC) ? "-recv" : "-miss",
api.metric,
CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE) ? "-recv" : "-miss",
api.distance);
}
break;
default:
zlog_warn("%s: unknown command=%d", __PRETTY_FUNCTION__, command);
return -1;
}
sched_rpf_cache_refresh();
return 0;
}
const char *ospf_redist_string(unsigned int route_type)
{
return (route_type == ZEBRA_ROUTE_MAX) ? "Default"
: zebra_route_string(route_type);
}
static int
ospf6_zebra_read_ipv6 (int command, struct zclient *zclient,
zebra_size_t length)
{
struct stream *s;
struct zapi_ipv6 api;
unsigned long ifindex;
struct prefix_ipv6 p;
struct in6_addr *nexthop;
s = zclient->ibuf;
ifindex = 0;
nexthop = NULL;
memset (&api, 0, sizeof (api));
/* Type, flags, message. */
api.type = stream_getc (s);
api.flags = stream_getc (s);
api.message = stream_getc (s);
/* IPv6 prefix. */
memset (&p, 0, sizeof (struct prefix_ipv6));
p.family = AF_INET6;
p.prefixlen = stream_getc (s);
stream_get (&p.prefix, s, PSIZE (p.prefixlen));
/* Nexthop, ifindex, distance, metric. */
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
{
api.nexthop_num = stream_getc (s);
nexthop = (struct in6_addr *)
malloc (api.nexthop_num * sizeof (struct in6_addr));
stream_get (nexthop, s, api.nexthop_num * sizeof (struct in6_addr));
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX))
{
api.ifindex_num = stream_getc (s);
ifindex = stream_getl (s);
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
api.distance = stream_getc (s);
else
api.distance = 0;
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
api.metric = stream_getl (s);
else
api.metric = 0;
if (IS_OSPF6_DEBUG_ZEBRA (RECV))
{
char prefixstr[128], nexthopstr[128];
prefix2str ((struct prefix *)&p, prefixstr, sizeof (prefixstr));
if (nexthop)
inet_ntop (AF_INET6, nexthop, nexthopstr, sizeof (nexthopstr));
else
snprintf (nexthopstr, sizeof (nexthopstr), "::");
zlog_debug ("Zebra Receive route %s: %s %s nexthop %s ifindex %ld",
(command == ZEBRA_IPV6_ROUTE_ADD ? "add" : "delete"),
zebra_route_string(api.type), prefixstr, nexthopstr, ifindex);
}
if (command == ZEBRA_IPV6_ROUTE_ADD)
ospf6_asbr_redistribute_add (api.type, ifindex, (struct prefix *) &p,
api.nexthop_num, nexthop);
else
ospf6_asbr_redistribute_remove (api.type, ifindex, (struct prefix *) &p);
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
free (nexthop);
return 0;
}
/* Zebra route add and delete treatment. */
static int
zebra_read_ipv6 (int command, struct zclient *zclient, zebra_size_t length)
{
struct stream *s;
struct zapi_ipv6 api;
struct in6_addr nexthop;
struct prefix_ipv6 p;
s = zclient->ibuf;
memset (&nexthop, 0, sizeof (struct in6_addr));
/* Type, flags, message. */
api.type = stream_getc (s);
api.flags = stream_getc (s);
api.message = stream_getc (s);
/* IPv6 prefix. */
memset (&p, 0, sizeof (struct prefix_ipv6));
p.family = AF_INET6;
p.prefixlen = stream_getc (s);
stream_get (&p.prefix, s, PSIZE (p.prefixlen));
/* Nexthop, ifindex, distance, metric. */
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
{
api.nexthop_num = stream_getc (s);
stream_get (&nexthop, s, 16);
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX))
{
api.ifindex_num = stream_getc (s);
stream_getl (s); /* ifindex, unused */
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
api.distance = stream_getc (s);
else
api.distance = 0;
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
api.metric = stream_getl (s);
else
api.metric = 0;
/* Simply ignore link-local address. */
if (IN6_IS_ADDR_LINKLOCAL (&p.prefix))
return 0;
if (command == ZEBRA_IPV6_ROUTE_ADD)
{
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET6_ADDRSTRLEN];
zlog_debug("Zebra rcvd: IPv6 route add %s %s/%d nexthop %s metric %u",
zebra_route_string(api.type),
inet_ntop(AF_INET6, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])),
api.metric);
}
bgp_redistribute_add ((struct prefix *)&p, NULL, &nexthop,
api.metric, api.type);
}
else
{
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET6_ADDRSTRLEN];
zlog_debug("Zebra rcvd: IPv6 route delete %s %s/%d "
"nexthop %s metric %u",
zebra_route_string(api.type),
inet_ntop(AF_INET6, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET6, &nexthop, buf[1], sizeof(buf[1])),
api.metric);
}
bgp_redistribute_delete ((struct prefix *) &p, api.type);
}
return 0;
}
