static int ldp_interface_state_up(int command, struct zclient *zclient,
zebra_size_t length) {
struct interface *ifp;
struct interface if_tmp;
ifp = zebra_interface_if_lookup(zclient->ibuf);
if (ifp == NULL) {
return 0;
}
/* Interface is already up. */
if (if_is_up (ifp)) {
/* Temporarily keep ifp values. */
memcpy (&if_tmp, ifp, sizeof (struct interface));
zebra_interface_if_set_value (zclient->ibuf, ifp);
zlog_info ("Interface[%s] state update.", ifp->name);
return 0;
}
zebra_interface_if_set_value(zclient->ibuf, ifp);
zlog_info ("Interface[%s] state change to up.", ifp->name);
ldp_interface_up(ifp->info);
return 0;
}
int
isis_zebra_if_state_up (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
ifp = zebra_interface_if_lookup (zclient->ibuf);
if (!ifp)
return 0;
if (if_is_operative (ifp))
{
zebra_interface_if_set_value (zclient->ibuf, ifp);
/* HT: This is wrong actually. We can't assume that circuit exist
* if we delete circuit during if_state_down event. Needs rethink.
* TODO */
isis_circuit_update_params (circuit_scan_by_ifp (ifp), ifp);
return 0;
}
zebra_interface_if_set_value (zclient->ibuf, ifp);
isis_csm_state_change (IF_UP_FROM_Z, circuit_scan_by_ifp (ifp), ifp);
return 0;
}
static int
rsvp_interface_state_up (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
ifp = zebra_interface_if_lookup (zclient->ibuf);
if (ifp == NULL)
return 0;
/* Interface is already up. */
if (if_is_operative (ifp))
{
/* Temporarily keep ifp values. */
struct interface if_tmp;
memcpy (&if_tmp, ifp, sizeof (struct interface));
zebra_interface_if_set_value (zclient->ibuf, ifp);
zlog_debug ("Zebra: Interface[%s] state update.", ifp->name);
if (if_tmp.bandwidth != ifp->bandwidth)
{
zlog_debug ("Zebra: Interface[%s] bandwidth change %d -> %d.",
ifp->name, if_tmp.bandwidth, ifp->bandwidth);
}
return 0;
}
zebra_interface_if_set_value (zclient->ibuf, ifp);
zlog_debug ("Zebra: Interface[%s] state change to up.", ifp->name);
return 0;
}
struct interface *
zebra_interface_add_read (struct stream *s)
{
struct interface *ifp;
char ifname_tmp[INTERFACE_NAMSIZ];
/* Read interface name. */
stream_get (ifname_tmp, s, INTERFACE_NAMSIZ);
/* Lookup/create interface by name. */
ifp = if_get_by_name_len (ifname_tmp, strnlen(ifname_tmp, INTERFACE_NAMSIZ));
zebra_interface_if_set_value (s, ifp);
return ifp;
}
int
isis_zebra_if_state_down (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
ifp = zebra_interface_if_lookup (zclient->ibuf);
if (ifp == NULL)
return 0;
if (if_is_operative (ifp))
{
zebra_interface_if_set_value (zclient->ibuf, ifp);
isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp), ifp);
}
return 0;
}
/*
* Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN)
* from zebra server. The format of this message is the same as
* that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE (see
* comments for zebra_interface_add_read), except that no sockaddr_dl
* is sent at the tail of the message.
*/
struct interface *
zebra_interface_state_read (struct stream *s)
{
struct interface *ifp;
char ifname_tmp[INTERFACE_NAMSIZ];
/* Read interface name. */
stream_get (ifname_tmp, s, INTERFACE_NAMSIZ);
/* Lookup this by interface index. */
ifp = if_lookup_by_name_len (ifname_tmp,
strnlen(ifname_tmp, INTERFACE_NAMSIZ));
/* If such interface does not exist, indicate an error */
if (! ifp)
return NULL;
zebra_interface_if_set_value (s, ifp);
return ifp;
}
static int
ospf_interface_state_up (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
struct ospf_interface *oi;
struct route_node *rn;
ifp = zebra_interface_if_lookup (zclient->ibuf);
if (ifp == NULL)
return 0;
/* Interface is already up. */
if (if_is_operative (ifp))
{
/* Temporarily keep ifp values. */
struct interface if_tmp;
memcpy (&if_tmp, ifp, sizeof (struct interface));
zebra_interface_if_set_value (zclient->ibuf, ifp);
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
zlog_debug ("Zebra: Interface[%s] state update.", ifp->name);
if (if_tmp.bandwidth != ifp->bandwidth)
{
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
zlog_debug ("Zebra: Interface[%s] bandwidth change %d -> %d.",
ifp->name, if_tmp.bandwidth, ifp->bandwidth);
ospf_if_recalculate_output_cost (ifp);
}
if (if_tmp.mtu != ifp->mtu)
{
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
zlog_debug ("Zebra: Interface[%s] MTU change %u -> %u.",
ifp->name, if_tmp.mtu, ifp->mtu);
/* Must reset the interface (simulate down/up) when MTU changes. */
ospf_if_reset(ifp);
}
return 0;
}
zebra_interface_if_set_value (zclient->ibuf, ifp);
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
zlog_debug ("Zebra: Interface[%s] state change to up.", ifp->name);
for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn))
{
if ((oi = rn->info) == NULL)
continue;
ospf_if_up (oi);
}
return 0;
}
void eigrp_zebra_init(void)
{
struct zclient_options opt = {.receive_notify = false};
zclient = zclient_new_notify(master, &opt);
zclient_init(zclient, ZEBRA_ROUTE_EIGRP, 0, &eigrpd_privs);
zclient->zebra_connected = eigrp_zebra_connected;
zclient->router_id_update = eigrp_router_id_update_zebra;
zclient->interface_add = eigrp_interface_add;
zclient->interface_delete = eigrp_interface_delete;
zclient->interface_up = eigrp_interface_state_up;
zclient->interface_down = eigrp_interface_state_down;
zclient->interface_address_add = eigrp_interface_address_add;
zclient->interface_address_delete = eigrp_interface_address_delete;
zclient->redistribute_route_add = eigrp_zebra_read_route;
zclient->redistribute_route_del = eigrp_zebra_read_route;
zclient->route_notify_owner = eigrp_zebra_route_notify_owner;
}
/* Zebra route add and delete treatment. */
static int eigrp_zebra_read_route(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct zapi_route api;
struct eigrp *eigrp;
if (zapi_route_decode(zclient->ibuf, &api) < 0)
return -1;
if (IPV4_NET127(ntohl(api.prefix.u.prefix4.s_addr)))
return 0;
eigrp = eigrp_lookup();
if (eigrp == NULL)
return 0;
if (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD) {
} else /* if (command == ZEBRA_REDISTRIBUTE_ROUTE_DEL) */
{
}
return 0;
}
/* Inteface addition message from zebra. */
static int eigrp_interface_add(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
struct eigrp_interface *ei;
ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);
if (!ifp->info)
return 0;
ei = ifp->info;
ei->params.type = eigrp_default_iftype(ifp);
eigrp_if_update(ifp);
return 0;
}
static int eigrp_interface_delete(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
struct stream *s;
s = zclient->ibuf;
/* zebra_interface_state_read () updates interface structure in iflist
*/
ifp = zebra_interface_state_read(s, vrf_id);
if (ifp == NULL)
return 0;
if (if_is_up(ifp))
zlog_warn("Zebra: got delete of %s, but interface is still up",
ifp->name);
if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
zlog_debug(
"Zebra: interface delete %s index %d flags %llx metric %d mtu %d",
ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
ifp->metric, ifp->mtu);
if (ifp->info)
eigrp_if_free(ifp->info, INTERFACE_DOWN_BY_ZEBRA);
if_set_index(ifp, IFINDEX_INTERNAL);
return 0;
}
static int eigrp_interface_address_add(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct connected *c;
c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
if (c == NULL)
return 0;
if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
char buf[128];
prefix2str(c->address, buf, sizeof(buf));
zlog_debug("Zebra: interface %s address add %s", c->ifp->name,
buf);
}
eigrp_if_update(c->ifp);
return 0;
}
static int eigrp_interface_address_delete(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct connected *c;
struct interface *ifp;
struct eigrp_interface *ei;
c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
if (c == NULL)
return 0;
if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
char buf[128];
prefix2str(c->address, buf, sizeof(buf));
zlog_debug("Zebra: interface %s address delete %s",
c->ifp->name, buf);
}
ifp = c->ifp;
ei = ifp->info;
if (!ei)
return 0;
/* Call interface hook functions to clean up */
eigrp_if_free(ei, INTERFACE_DOWN_BY_ZEBRA);
connected_free(c);
return 0;
}
static int eigrp_interface_state_up(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
ifp = zebra_interface_if_lookup(zclient->ibuf);
if (ifp == NULL)
return 0;
/* Interface is already up. */
if (if_is_operative(ifp)) {
/* Temporarily keep ifp values. */
struct interface if_tmp;
memcpy(&if_tmp, ifp, sizeof(struct interface));
zebra_interface_if_set_value(zclient->ibuf, ifp);
if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
zlog_debug("Zebra: Interface[%s] state update.",
ifp->name);
if (if_tmp.bandwidth != ifp->bandwidth) {
if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
zlog_debug(
"Zebra: Interface[%s] bandwidth change %d -> %d.",
ifp->name, if_tmp.bandwidth,
ifp->bandwidth);
// eigrp_if_recalculate_output_cost (ifp);
}
if (if_tmp.mtu != ifp->mtu) {
if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
zlog_debug(
"Zebra: Interface[%s] MTU change %u -> %u.",
ifp->name, if_tmp.mtu, ifp->mtu);
/* Must reset the interface (simulate down/up) when MTU
* changes. */
eigrp_if_reset(ifp);
}
return 0;
}
zebra_interface_if_set_value(zclient->ibuf, ifp);
if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
zlog_debug("Zebra: Interface[%s] state change to up.",
ifp->name);
if (ifp->info)
eigrp_if_up(ifp->info);
return 0;
}
static int eigrp_interface_state_down(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
if (ifp == NULL)
return 0;
if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
zlog_debug("Zebra: Interface[%s] state change to down.",
ifp->name);
if (ifp->info)
eigrp_if_down(ifp->info);
return 0;
}
static struct interface *zebra_interface_if_lookup(struct stream *s)
{
char ifname_tmp[INTERFACE_NAMSIZ];
/* Read interface name. */
stream_get(ifname_tmp, s, INTERFACE_NAMSIZ);
/* And look it up. */
return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
}