int
isis_zebra_if_address_add (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *c;
struct prefix *p;
char buf[BUFSIZ];
c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD,
zclient->ibuf);
if (c == NULL)
return 0;
p = c->address;
prefix2str (p, buf, BUFSIZ);
#ifdef EXTREME_DEBUG
if (p->family == AF_INET)
zlog_debug ("connected IP address %s", buf);
#ifdef HAVE_IPV6
if (p->family == AF_INET6)
zlog_debug ("connected IPv6 address %s", buf);
#endif /* HAVE_IPV6 */
#endif /* EXTREME_DEBUG */
if (if_is_operative (c->ifp))
isis_circuit_add_addr (circuit_scan_by_ifp (c->ifp), c);
return 0;
}
static int
ospf_interface_address_add (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *c;
c = zebra_interface_address_read (command, zclient->ibuf);
if (c == NULL)
return 0;
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
{
char buf[128];
prefix2str(c->address, buf, sizeof(buf));
zlog_debug("Zebra: interface %s address add %s", c->ifp->name, buf);
}
ospf_if_update (NULL, c->ifp);
#ifdef HAVE_SNMP
ospf_snmp_if_update (c->ifp);
#endif /* HAVE_SNMP */
return 0;
}
int
rip_interface_address_add (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *ifc;
struct prefix *p;
ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD,
zclient->ibuf);
if (ifc == NULL)
return 0;
p = ifc->address;
if (p->family == AF_INET)
{
if (IS_RIP_DEBUG_ZEBRA)
zlog_debug ("connected address %s/%d is added",
inet_ntoa (p->u.prefix4), p->prefixlen);
rip_enable_apply(ifc->ifp);
/* Check if this prefix needs to be redistributed */
rip_apply_address_add(ifc);
#ifdef HAVE_SNMP
rip_ifaddr_add (ifc->ifp, ifc);
#endif /* HAVE_SNMP */
}
return 0;
}
static int
bgp_interface_address_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *ifc;
ifc = zebra_interface_address_read (command, zclient->ibuf);
if (ifc == NULL)
return 0;
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[128];
prefix2str(ifc->address, buf, sizeof(buf));
zlog_debug("Zebra rcvd: interface %s address delete %s",
ifc->ifp->name, buf);
}
if (if_is_operative (ifc->ifp))
bgp_connected_delete (ifc);
connected_free (ifc);
return 0;
}
int
ripng_interface_address_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *ifc;
struct prefix *p;
char buf[INET6_ADDRSTRLEN];
ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE,
zclient->ibuf);
if (ifc)
{
p = ifc->address;
if (p->family == AF_INET6)
{
if (IS_RIPNG_DEBUG_ZEBRA)
zlog_debug ("RIPng connected address %s/%d delete",
inet_ntop (AF_INET6, &p->u.prefix6, buf,
INET6_ADDRSTRLEN),
p->prefixlen);
/* Check wether this prefix needs to be removed. */
ripng_apply_address_del(ifc);
}
connected_free (ifc);
}
return 0;
}
static int
rsvp_interface_address_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *c;
char buf[128];
c = zebra_interface_address_read (command, zclient->ibuf);
if (c == NULL)
return 0;
prefix2str (c->address, buf, sizeof (buf));
zlog_debug ("Zebra: interface %s address delete %s", c->ifp->name, buf);
if (IfIpAddrDel (c->address->u.prefix4.s_addr, c->address->prefixlen) !=
E_OK)
{
zlog_err ("Cannot add IP address %s %d", __FILE__, __LINE__);
}
if (IpAddrSetByIfIndex (c->ifp->ifindex, 0) != E_OK)
{
zlog_err ("Cannot unset IP address %s %d", __FILE__, __LINE__);
}
DisableRsvpOnInterface (c->ifp->ifindex);
connected_free (c);
return 0;
}
static int interface_address_add(ZAPI_CALLBACK_ARGS)
{
zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
return 0;
}
int
rip_interface_address_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *ifc;
struct prefix *p;
ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE,
zclient->ibuf);
if (ifc)
{
p = ifc->address;
if (p->family == AF_INET)
{
if (IS_RIP_DEBUG_ZEBRA)
zlog_debug ("connected address %s/%d is deleted",
inet_ntoa (p->u.prefix4), p->prefixlen);
#ifdef HAVE_SNMP
rip_ifaddr_delete (ifc->ifp, ifc);
#endif /* HAVE_SNMP */
/* Chech wether this prefix needs to be removed */
rip_apply_address_del(ifc);
}
connected_free (ifc);
}
return 0;
}
static int interface_address_delete(ZAPI_CALLBACK_ARGS)
{
struct connected *c;
c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
if (!c)
return 0;
connected_free(c);
return 0;
}
static int
ospf_interface_address_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct ospf *ospf;
struct connected *c;
struct interface *ifp;
struct ospf_interface *oi;
struct route_node *rn;
struct prefix p;
c = zebra_interface_address_read (command, zclient->ibuf);
if (c == NULL)
return 0;
if (IS_DEBUG_OSPF (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;
p = *c->address;
p.prefixlen = IPV4_MAX_PREFIXLEN;
rn = route_node_lookup (IF_OIFS (ifp), &p);
if (!rn)
{
connected_free (c);
return 0;
}
assert (rn->info);
oi = rn->info;
/* Call interface hook functions to clean up */
ospf_if_free (oi);
#ifdef HAVE_SNMP
ospf_snmp_if_update (c->ifp);
#endif /* HAVE_SNMP */
connected_free (c);
ospf = ospf_lookup ();
if (ospf != NULL)
ospf_if_update (ospf);
return 0;
}
int
ripng_interface_address_add (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *c;
struct prefix *p;
c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD,
zclient->ibuf);
if (c == NULL)
return 0;
p = c->address;
if (p->family == AF_INET6)
{
if (IS_RIPNG_DEBUG_ZEBRA)
zlog_debug ("RIPng connected address %s/%d add",
inet6_ntop(&p->u.prefix6),
p->prefixlen);
/* Check is this prefix needs to be redistributed. */
ripng_apply_address_add(c);
/* Let's try once again whether the interface could be activated */
if (c->ifp) {
struct ripng_interface *ri = c->ifp->info;
if (!ri->running) {
/* Check if this interface is RIP enabled or not.*/
ripng_enable_apply (c->ifp);
/* Apply distribute list to the interface. */
ripng_distribute_update_interface (c->ifp);
/* Check interface routemap. */
ripng_if_rmap_update_interface (c->ifp);
}
}
}
return 0;
}
int nhrp_interface_address_add(int cmd, struct zclient *client,
zebra_size_t length, vrf_id_t vrf_id)
{
struct connected *ifc;
char buf[PREFIX_STRLEN];
ifc = zebra_interface_address_read(cmd, client->ibuf, vrf_id);
if (ifc == NULL)
return 0;
debugf(NHRP_DEBUG_IF, "if-addr-add: %s: %s",
ifc->ifp->name,
prefix2str(ifc->address, buf, sizeof buf));
nhrp_interface_update_address(ifc->ifp, family2afi(PREFIX_FAMILY(ifc->address)), 0);
return 0;
}
static int pim_zebra_if_address_del(int command, struct zclient *client,
zebra_size_t length)
{
struct connected *c;
struct prefix *p;
zassert(command == ZEBRA_INTERFACE_ADDRESS_DELETE);
/*
zebra api notifies address adds/dels events by using the same call
interface_add_read below, see comments in lib/zclient.c
zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, ...)
will remove address from interface list by calling
connected_delete_by_prefix()
*/
c = zebra_interface_address_read(command, client->ibuf);
if (!c)
return 0;
p = c->address;
if (p->family != AF_INET)
return 0;
if (PIM_DEBUG_ZEBRA) {
char buf[BUFSIZ];
prefix2str(p, buf, BUFSIZ);
zlog_debug("%s: %s disconnected IP address %s flags %u %s",
__PRETTY_FUNCTION__,
c->ifp->name, buf, c->flags,
CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY) ? "secondary" : "primary");
#ifdef PIM_DEBUG_IFADDR_DUMP
dump_if_address(c->ifp);
#endif
}
pim_if_addr_del(c, 0);
return 0;
}
static int
ospf6_zebra_if_address_update_delete (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *c;
char buf[128];
c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE, zclient->ibuf);
if (c == NULL)
return 0;
if (IS_OSPF6_DEBUG_ZEBRA (RECV))
zlog_debug ("Zebra Interface address delete: %s %5s %s/%d",
c->ifp->name, prefix_family_str (c->address),
inet_ntop (c->address->family, &c->address->u.prefix,
buf, sizeof (buf)), c->address->prefixlen);
if (c->address->family == AF_INET6)
ospf6_interface_connected_route_update (c->ifp);
return 0;
}
static int
rsvp_interface_address_add (int command, struct zclient *zclient,
zebra_size_t length)
{
struct connected *c;
char buf[128];
c = zebra_interface_address_read (command, zclient->ibuf);
if (c == NULL)
return 0;
prefix2str (c->address, buf, sizeof (buf));
zlog_debug ("Zebra: interface %s address add %s", c->ifp->name, buf);
zlog_info ("trying to add IP address %s", buf);
if (IfIpAdd (c->address->u.prefix4.s_addr, c->address->prefixlen) != E_OK)
{
zlog_err ("Cannot add IP address %s %d", __FILE__, __LINE__);
}
if (IpAddrSetByIfIndex (c->ifp->ifindex, c->address->u.prefix4.s_addr) !=
E_OK)
{
zlog_err ("Cannot set IP address %s %d", __FILE__, __LINE__);
}
if (IsRsvpEnabledOnIf (c->ifp->ifindex) == E_OK)
{
if (EnableRsvpOnInterface2 (c->ifp->ifindex) != E_OK)
{
zlog_err ("Cannot enable RSVP on I/F %d %s %d",
c->ifp->ifindex, __FILE__, __LINE__);
}
}
return 0;
}
static int
isis_zebra_if_address_del (int command, struct zclient *client,
zebra_size_t length, vrf_id_t vrf_id)
{
struct connected *c;
struct interface *ifp;
#ifdef EXTREME_DEBUG
struct prefix *p;
u_char buf[BUFSIZ];
#endif /* EXTREME_DEBUG */
c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE,
zclient->ibuf, vrf_id);
if (c == NULL)
return 0;
ifp = c->ifp;
#ifdef EXTREME_DEBUG
p = c->address;
prefix2str (p, buf, BUFSIZ);
if (p->family == AF_INET)
zlog_debug ("disconnected IP address %s", buf);
#ifdef HAVE_IPV6
if (p->family == AF_INET6)
zlog_debug ("disconnected IPv6 address %s", buf);
#endif /* HAVE_IPV6 */
#endif /* EXTREME_DEBUG */
if (if_is_operative (ifp))
isis_circuit_del_addr (circuit_scan_by_ifp (ifp), c);
connected_free (c);
return 0;
}
static int pim_zebra_if_address_add(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
struct connected *c;
struct prefix *p;
/*
zebra api notifies address adds/dels events by using the same call
interface_add_read below, see comments in lib/zclient.c
zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, ...)
will add address to interface list by calling
connected_add_by_prefix()
*/
c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
if (!c)
return 0;
p = c->address;
if (p->family != AF_INET)
return 0;
if (PIM_DEBUG_ZEBRA) {
char buf[BUFSIZ];
prefix2str(p, buf, BUFSIZ);
zlog_debug("%s: %s connected IP address %s flags %u %s",
__PRETTY_FUNCTION__,
c->ifp->name, buf, c->flags,
CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY) ? "secondary" : "primary");
#ifdef PIM_DEBUG_IFADDR_DUMP
dump_if_address(c->ifp);
#endif
}
if (!CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY)) {
/* trying to add primary address */
struct in_addr primary_addr = pim_find_primary_addr(c->ifp);
if (primary_addr.s_addr != p->u.prefix4.s_addr) {
if (PIM_DEBUG_ZEBRA) {
/* but we had a primary address already */
char buf[BUFSIZ];
char old[100];
prefix2str(p, buf, BUFSIZ);
pim_inet4_dump("<old?>", primary_addr, old, sizeof(old));
zlog_warn("%s: %s primary addr old=%s: forcing secondary flag on new=%s",
__PRETTY_FUNCTION__,
c->ifp->name, old, buf);
}
SET_FLAG(c->flags, ZEBRA_IFA_SECONDARY);
}
}
pim_if_addr_add(c);
return 0;
}
static int ldp_interface_address_delete(int command, struct zclient *zclient,
zebra_size_t length) {
struct ldp *ldp = ldp_get();
struct connected *c;
struct interface *ifp;
struct prefix *p;
struct ldp_addr addr;
struct ldp_if iff;
struct ldp_interface *li;
c = zebra_interface_address_read(command, zclient->ibuf);
if (c == NULL || c->address->family != AF_INET) {
return 0;
}
ifp = c->ifp;
p = c->address;
zlog_info("address delete %s from interface %s",
inet_ntoa(p->u.prefix4), ifp->name);
if (ldp) {
prefix2mpls_inet_addr(p, &addr.address);
iff.handle = ifp;
ldp_cfg_if_addr_set(ldp->h, &iff, &addr, LDP_CFG_DEL);
li = ifp->info;
if (ldp->trans_addr == LDP_TRANS_ADDR_STATIC_INTERFACE &&
!strncmp(ldp->trans_addr_ifname,ifp->name,IFNAMSIZ + 1)) {
ldp_global g;
zlog_info("updating global transport address");
g.transport_address.u.ipv4 = ntohl(if_ipv4_src_address (ifp));
g.transport_address.type =
(g.transport_address.u.ipv4)?MPLS_FAMILY_IPV4:MPLS_FAMILY_NONE;
ldp_admin_state_start(ldp);
ldp_cfg_global_set(ldp->h,&g, LDP_GLOBAL_CFG_TRANS_ADDR);
ldp_admin_state_finish(ldp);
}
if (ldp->trans_addr == LDP_TRANS_ADDR_INTERFACE) {
zlog_info("updating entity transport address");
li->entity.transport_address.u.ipv4 =
ntohl(if_ipv4_src_address (ifp));
li->entity.transport_address.type =
li->entity.transport_address.u.ipv4 ?
MPLS_FAMILY_IPV4 : MPLS_FAMILY_NONE;
if (li->entity.index) {
ldp_interface_admin_state_start(li);
ldp_cfg_entity_set(ldp->h, &li->entity,
LDP_ENTITY_CFG_TRANS_ADDR);
ldp_interface_admin_state_finish(li);
}
}
}
connected_free(c);
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);
}