/* Inteface link up message processing. */
int
ripng_interface_up (int command, struct zclient *zclient, zebra_size_t length)
{
struct stream *s;
struct interface *ifp;
/* zebra_interface_state_read() updates interface structure in iflist. */
s = zclient->ibuf;
ifp = zebra_interface_state_read (s);
if (ifp == NULL)
return 0;
if (IS_RIPNG_DEBUG_ZEBRA)
zlog_debug ("interface up %s index %d flags %#"PRIx64" metric %d mtu %d",
ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
/* Check if this interface is RIPng enabled or not. */
ripng_enable_apply (ifp);
/* Check for a passive interface. */
ripng_passive_interface_apply (ifp);
/* Apply distribute list to the all interface. */
ripng_distribute_update_interface (ifp);
return 0;
}
static int
ospf_interface_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
struct stream *s;
struct route_node *rn;
s = zclient->ibuf;
/* zebra_interface_state_read() updates interface structure in iflist */
ifp = zebra_interface_state_read (s);
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_OSPF (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);
#ifdef HAVE_SNMP
ospf_snmp_if_delete (ifp);
#endif /* HAVE_SNMP */
for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn))
if (rn->info)
ospf_if_free ((struct ospf_interface *) rn->info);
ifp->ifindex = IFINDEX_INTERNAL;
return 0;
}
static int pim_zebra_if_del(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
/*
zebra api adds/dels interfaces using the same call
interface_add_read below, see comments in lib/zclient.c
comments in lib/zclient.c seem to indicate that calling
zebra_interface_add_read is the correct call, but that
results in an attemted out of bounds read which causes
pimd to assert. Other clients use zebra_interface_state_read
and it appears to work just fine.
*/
ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
if (!ifp)
return 0;
if (PIM_DEBUG_ZEBRA) {
zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
__PRETTY_FUNCTION__,
ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
ifp->mtu, if_is_operative(ifp));
}
if (!if_is_operative(ifp))
pim_if_addr_del_all(ifp);
return 0;
}
static int
isis_zebra_if_del (int command, struct zclient *zclient, zebra_size_t length)
{
struct interface *ifp;
struct stream *s;
s = zclient->ibuf;
ifp = zebra_interface_state_read (s);
if (!ifp)
return 0;
if (if_is_operative (ifp))
zlog_warn ("Zebra: got delete of %s, but interface is still up",
ifp->name);
if (isis->debugs & DEBUG_ZEBRA)
zlog_debug ("Zebra I/F delete: %s index %d flags %ld metric %d mtu %d",
ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric, ifp->mtu);
/* Cannot call if_delete because we should retain the pseudo interface
in case there is configuration info attached to it. */
if_delete_retain(ifp);
isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp), ifp);
ifp->ifindex = IFINDEX_INTERNAL;
return 0;
}
static int pim_zebra_if_state_up(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
/*
zebra api notifies interface up/down events by using the same call
zebra_interface_state_read below, see comments in lib/zclient.c
*/
ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
if (!ifp)
return 0;
if (PIM_DEBUG_ZEBRA) {
zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
__PRETTY_FUNCTION__,
ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
ifp->mtu, if_is_operative(ifp));
}
if (if_is_operative(ifp)) {
/*
pim_if_addr_add_all() suffices for bringing up both IGMP and PIM
*/
pim_if_addr_add_all(ifp);
}
return 0;
}
static int
ospf_interface_state_down (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
struct ospf_interface *oi;
struct route_node *node;
ifp = zebra_interface_state_read (zclient->ibuf);
if (ifp == NULL)
return 0;
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
zlog_debug ("Zebra: Interface[%s] state change to down.", ifp->name);
for (node = route_top (IF_OIFS (ifp)); node; node = route_next (node))
{
if ((oi = node->info) == NULL)
continue;
ospf_if_down (oi);
}
return 0;
}
int
ripng_interface_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
struct stream *s;
s = zclient->ibuf;
/* zebra_interface_state_read() updates interface structure in iflist */
ifp = zebra_interface_state_read(s);
if (ifp == NULL)
return 0;
if (if_is_up (ifp)) {
ripng_if_down(ifp);
}
zlog_info("interface delete %s index %d flags %#"PRIx64" metric %d mtu %d",
ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
/* To support pseudo interface do not free interface structure. */
/* if_delete(ifp); */
ifp->ifindex = IFINDEX_INTERNAL;
return 0;
}
static int
rsvp_interface_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
struct stream *s;
s = zclient->ibuf;
/* zebra_interface_state_read() updates interface structure in iflist */
ifp = zebra_interface_state_read (s);
if (ifp == NULL)
return 0;
if (if_is_up (ifp))
zlog_warn ("Zebra: got delete of %s, but interface is still up",
ifp->name);
zlog_debug
("Zebra: interface delete %s index %d flags %ld metric %d mtu %d",
ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
if (DisableRsvpOnInterface (ifp->ifindex) != E_OK)
{
zlog_err ("cannot disable RSVP on I/F %d", ifp->ifindex);
}
else
{
zlog_debug (" RSVP disabled");
}
return 0;
}
int
isis_zebra_if_del (int command, struct zclient *zclient, zebra_size_t length)
{
struct interface *ifp;
struct stream *s;
s = zclient->ibuf;
ifp = zebra_interface_state_read (s);
if (!ifp)
return 0;
if (if_is_operative (ifp))
zlog_warn ("Zebra: got delete of %s, but interface is still up",
ifp->name);
zlog_debug ("Zebra I/F delete: %s index %d flags %ld metric %d mtu %d",
ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
if_delete (ifp);
isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp), ifp);
return 0;
}
static int interface_state_down(ZAPI_CALLBACK_ARGS)
{
zebra_interface_state_read(zclient->ibuf, vrf_id);
return 0;
}
/* Inteface link up message processing */
int
rip_interface_up (int command, struct zclient *zclient, zebra_size_t length)
{
struct interface *ifp;
/* zebra_interface_state_read () updates interface structure in
iflist. */
ifp = zebra_interface_state_read (zclient->ibuf);
if (ifp == NULL)
return 0;
if (IS_RIP_DEBUG_ZEBRA)
zlog_debug ("interface %s index %d flags %#llx metric %d mtu %d is up",
ifp->name, ifp->ifindex, (unsigned long long) ifp->flags,
ifp->metric, ifp->mtu);
/* Check if this interface is RIP enabled or not.*/
rip_enable_apply (ifp);
/* Check for a passive interface */
rip_passive_interface_apply (ifp);
/* Apply distribute list to the all interface. */
rip_distribute_update_interface (ifp);
return 0;
}
int nhrp_interface_down(int cmd, struct zclient *client,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
ifp = zebra_interface_state_read(client->ibuf, vrf_id);
if (ifp == NULL)
return 0;
debugf(NHRP_DEBUG_IF, "if-down: %s", ifp->name);
nhrp_interface_update(ifp);
return 0;
}
static int
bgp_interface_down (int command, struct zclient *zclient, zebra_size_t length)
{
struct stream *s;
struct interface *ifp;
struct connected *c;
struct listnode *node, *nnode;
s = zclient->ibuf;
ifp = zebra_interface_state_read (s);
if (! ifp)
return 0;
if (BGP_DEBUG(zebra, ZEBRA))
zlog_debug("Zebra rcvd: interface %s down", ifp->name);
for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, c))
bgp_connected_delete (c);
/* Fast external-failover (Currently IPv4 only) */
{
struct listnode *mnode;
struct bgp *bgp;
struct peer *peer;
struct interface *peer_if;
for (ALL_LIST_ELEMENTS_RO (bm->bgp, mnode, bgp))
{
if (CHECK_FLAG (bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER))
continue;
for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer))
{
if (peer->ttl != 1)
continue;
if (peer->su.sa.sa_family == AF_INET)
peer_if = if_lookup_by_ipv4 (&peer->su.sin.sin_addr);
else
continue;
if (ifp == peer_if)
BGP_EVENT_ADD (peer, BGP_Stop);
}
}
}
return 0;
}
static int
rsvp_interface_state_down (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
ifp = zebra_interface_state_read (zclient->ibuf);
if (ifp == NULL)
return 0;
zlog_debug ("Zebra: Interface[%s] state change to down.", ifp->name);
return 0;
}
static int
isis_zebra_if_state_up (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;
isis_csm_state_change (IF_UP_FROM_Z, circuit_scan_by_ifp (ifp), ifp);
return 0;
}
static int ldp_interface_state_down(int command, struct zclient *zclient,
zebra_size_t length) {
struct interface *ifp;
ifp = zebra_interface_state_read (zclient->ibuf);
if (ifp == NULL) {
return 0;
}
zlog_info ("Interface[%s] state change to down.", ifp->name);
ldp_interface_down(ifp->info);
return 0;
}
static int
bgp_interface_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct stream *s;
struct interface *ifp;
s = zclient->ibuf;
ifp = zebra_interface_state_read (s);
ifp->ifindex = IFINDEX_INTERNAL;
if (BGP_DEBUG(zebra, ZEBRA))
zlog_debug("Zebra rcvd: interface delete %s", ifp->name);
return 0;
}
int
ospf6_zebra_if_state_update (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
ifp = zebra_interface_state_read (zclient->ibuf);
/* log */
if (IS_OSPF6_DUMP_ZEBRA)
zlog_info ("ZEBRA: I/F %s state change: index %d flags %ld metric %d mtu %d",
ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
ospf6_interface_state_update (ifp);
return 0;
}
static int
ospf6_zebra_if_state_update (int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
ifp = zebra_interface_state_read (zclient->ibuf);
if (IS_OSPF6_DEBUG_ZEBRA (RECV))
zlog_debug ("Zebra Interface state change: "
"%s index %d flags %llx metric %d mtu %d",
ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
ifp->metric, ifp->mtu6);
ospf6_interface_state_update (ifp);
return 0;
}
int nhrp_interface_delete(int cmd, struct zclient *client,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
struct stream *s;
s = client->ibuf;
ifp = zebra_interface_state_read(s, vrf_id);
if (ifp == NULL)
return 0;
debugf(NHRP_DEBUG_IF, "if-delete: %s", ifp->name);
ifp->ifindex = IFINDEX_INTERNAL;
nhrp_interface_update(ifp);
/* if_delete(ifp); */
return 0;
}
static int interface_delete(ZAPI_CALLBACK_ARGS)
{
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_set_index(ifp, IFINDEX_INTERNAL);
return 0;
}
/* Inteface link up message processing */
int
stp_interface_up (int command, struct zclient *zclient, zebra_size_t length)
{
struct interface *ifp;
/* zebra_interface_state_read () updates interface structure in
iflist. */
ifp = zebra_interface_state_read (zclient->ibuf);
if (ifp == NULL)
return 0;
// if (STP_DEBUG)
zlog_debug ("interface %s index %d flags %#llx metric %d mtu %d is up",
ifp->name, ifp->ifindex, (unsigned long long) ifp->flags,
ifp->metric, ifp->mtu);
return 0;
}
static int
bgp_interface_down (int command, struct zclient *zclient, zebra_size_t length)
{
struct stream *s;
struct interface *ifp;
struct connected *c;
struct listnode *node, *nnode;
s = zclient->ibuf;
ifp = zebra_interface_state_read (s);
if (! ifp)
return 0;
if (BGP_DEBUG(zebra, ZEBRA))
zlog_debug("Zebra rcvd: interface %s down", ifp->name);
for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, c))
bgp_connected_delete (c);
/* Fast external-failover */
{
struct listnode *mnode;
struct bgp *bgp;
struct peer *peer;
for (ALL_LIST_ELEMENTS_RO (bm->bgp, mnode, bgp))
{
if (CHECK_FLAG (bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER))
continue;
for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer))
{
if ((peer->ttl != 1) && (peer->gtsm_hops != 1))
continue;
if (ifp == peer->nexthop.ifp)
BGP_EVENT_ADD (peer, BGP_Stop);
}
}
}
return 0;
}
static int
isis_zebra_if_state_down (int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct interface *ifp;
struct isis_circuit *circuit;
ifp = zebra_interface_state_read (zclient->ibuf, vrf_id);
if (ifp == NULL)
return 0;
circuit = isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp),
ifp);
if (circuit)
SET_FLAG(circuit->flags, ISIS_CIRCUIT_FLAPPED_AFTER_SPF);
return 0;
}
static int pim_zebra_if_state_down(int command, struct zclient *zclient,
zebra_size_t length)
{
struct interface *ifp;
/*
zebra api notifies interface up/down events by using the same call
zebra_interface_state_read below, see comments in lib/zclient.c
*/
ifp = zebra_interface_state_read(zclient->ibuf);
if (!ifp)
return 0;
zlog_info("INTERFACE DOWN: %s ifindex=%d", ifp->name, ifp->ifindex);
if (PIM_DEBUG_ZEBRA) {
zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
__PRETTY_FUNCTION__,
ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
ifp->mtu, if_is_operative(ifp));
}
if (!if_is_operative(ifp)) {
/*
pim_if_addr_del_all() suffices for shutting down IGMP,
but not for shutting down PIM
*/
pim_if_addr_del_all(ifp);
/*
pim_sock_delete() closes the socket, stops read and timer threads,
and kills all neighbors.
*/
if (ifp->info) {
pim_sock_delete(ifp, "link down");
}
}
return 0;
}
/* Inteface link down message processing. */
int
ripng_interface_down (int command, struct zclient *zclient,
zebra_size_t length)
{
struct stream *s;
struct interface *ifp;
/* zebra_interface_state_read() updates interface structure in iflist. */
s = zclient->ibuf;
ifp = zebra_interface_state_read (s);
if (ifp == NULL)
return 0;
ripng_if_down (ifp);
if (IS_RIPNG_DEBUG_ZEBRA)
zlog_debug ("interface down %s index %d flags %#"PRIx64" metric %d mtu %d",
ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
return 0;
}
static int
bgp_interface_up (int command, struct zclient *zclient, zebra_size_t length)
{
struct stream *s;
struct interface *ifp;
struct connected *c;
struct listnode *node, *nnode;
s = zclient->ibuf;
ifp = zebra_interface_state_read (s);
if (! ifp)
return 0;
if (BGP_DEBUG(zebra, ZEBRA))
zlog_debug("Zebra rcvd: interface %s up", ifp->name);
for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, c))
bgp_connected_add (c);
return 0;
}
/* this is not the same as ldp_interface_delete() which is found in
* ldp_interface.c
*/
static int ldp_interface_deletez(int command, struct zclient *zclient,
zebra_size_t length) {
struct interface *ifp;
struct stream *s;
s = zclient->ibuf;
/* zebra_interface_state_read() updates interface structure in iflist */
ifp = zebra_interface_state_read(s);
if (ifp == NULL) {
return 0;
}
if (if_is_up(ifp)) {
zlog_warn("got delete of %s, but interface is still up",
ifp->name);
}
zlog_info("interface delete %s index %d flags %ld metric %d mtu %d",
ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
return 0;
}
static int
ospf6_zebra_if_del (int command, struct zclient *zclient, zebra_size_t length)
{
struct interface *ifp;
if (!(ifp = zebra_interface_state_read(zclient->ibuf)))
return 0;
if (if_is_up (ifp))
zlog_warn ("Zebra: got delete of %s, but interface is still up", ifp->name);
if (IS_OSPF6_DEBUG_ZEBRA (RECV))
zlog_debug ("Zebra Interface delete: %s index %d mtu %d",
ifp->name, ifp->ifindex, ifp->mtu6);
#if 0
/* Why is this commented out? */
ospf6_interface_if_del (ifp);
#endif /*0*/
ifp->ifindex = IFINDEX_INTERNAL;
return 0;
}
/* Multicast packet receive socket. */
int
stp_interface_down (int command, struct zclient *zclient, zebra_size_t length)
{
struct interface *ifp;
struct stream *s;
s = zclient->ibuf;
/* zebra_interface_state_read() updates interface structure in
iflist. */
ifp = zebra_interface_state_read(s);
if (ifp == NULL)
return 0;
stp_if_down(ifp);
if (0)
zlog_debug ("interface %s index %d flags %llx metric %d mtu %d is down",
ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
ifp->metric, ifp->mtu);
return 0;
}
