#include "eigrpd/eigrp_topology.h"
#include "eigrpd/eigrp_memory.h"
-static void
-eigrp_delete_from_if (struct interface *, struct eigrp_interface *);
+static void eigrp_delete_from_if(struct interface *, struct eigrp_interface *);
-static void
-eigrp_add_to_if (struct interface *ifp, struct eigrp_interface *ei)
+static void eigrp_add_to_if(struct interface *ifp, struct eigrp_interface *ei)
{
- struct route_node *rn;
- struct prefix p;
-
- p = *ei->address;
- p.prefixlen = IPV4_MAX_PREFIXLEN;
-
- rn = route_node_get (IF_OIFS (ifp), &p);
- /* rn->info should either be NULL or equal to this ei
- * as route_node_get may return an existing node
- */
- assert (!rn->info || rn->info == ei);
- rn->info = ei;
+ struct route_node *rn;
+ struct prefix p;
+
+ p = *ei->address;
+ p.prefixlen = IPV4_MAX_PREFIXLEN;
+
+ rn = route_node_get(IF_OIFS(ifp), &p);
+ /* rn->info should either be NULL or equal to this ei
+ * as route_node_get may return an existing node
+ */
+ assert(!rn->info || rn->info == ei);
+ rn->info = ei;
}
-struct eigrp_interface *
-eigrp_if_new (struct eigrp *eigrp, struct interface *ifp, struct prefix *p)
+struct eigrp_interface *eigrp_if_new(struct eigrp *eigrp, struct interface *ifp,
+ struct prefix *p)
{
- struct eigrp_interface *ei;
- int i;
+ struct eigrp_interface *ei;
+ int i;
- if ((ei = eigrp_if_table_lookup (ifp, p)) == NULL)
- {
- ei = XCALLOC (MTYPE_EIGRP_IF, sizeof (struct eigrp_interface));
- memset (ei, 0, sizeof (struct eigrp_interface));
- }
- else
- return ei;
+ if ((ei = eigrp_if_table_lookup(ifp, p)) == NULL) {
+ ei = XCALLOC(MTYPE_EIGRP_IF, sizeof(struct eigrp_interface));
+ memset(ei, 0, sizeof(struct eigrp_interface));
+ } else
+ return ei;
- /* Set zebra interface pointer. */
- ei->ifp = ifp;
- ei->address = p;
+ /* Set zebra interface pointer. */
+ ei->ifp = ifp;
+ ei->address = p;
- eigrp_add_to_if (ifp, ei);
- listnode_add (eigrp->eiflist, ei);
+ eigrp_add_to_if(ifp, ei);
+ listnode_add(eigrp->eiflist, ei);
- ei->type = EIGRP_IFTYPE_BROADCAST;
+ ei->type = EIGRP_IFTYPE_BROADCAST;
- /* Initialize neighbor list. */
- ei->nbrs = list_new ();
+ /* Initialize neighbor list. */
+ ei->nbrs = list_new();
- ei->crypt_seqnum = time (NULL);
+ ei->crypt_seqnum = time(NULL);
- /* Initialize lists */
- for (i = 0; i < EIGRP_FILTER_MAX; i++)
- {
- ei->list[i] = NULL;
- ei->prefix[i] = NULL;
- ei->routemap[i] = NULL;
- }
+ /* Initialize lists */
+ for (i = 0; i < EIGRP_FILTER_MAX; i++) {
+ ei->list[i] = NULL;
+ ei->prefix[i] = NULL;
+ ei->routemap[i] = NULL;
+ }
- return ei;
+ return ei;
}
/* lookup ei for specified prefix/ifp */
-struct eigrp_interface *
-eigrp_if_table_lookup (struct interface *ifp, struct prefix *prefix)
+struct eigrp_interface *eigrp_if_table_lookup(struct interface *ifp,
+ struct prefix *prefix)
{
- struct prefix p;
- struct route_node *rn;
- struct eigrp_interface *rninfo = NULL;
+ struct prefix p;
+ struct route_node *rn;
+ struct eigrp_interface *rninfo = NULL;
- p = *prefix;
- p.prefixlen = IPV4_MAX_PREFIXLEN;
+ p = *prefix;
+ p.prefixlen = IPV4_MAX_PREFIXLEN;
- /* route_node_get implicitly locks */
- if ((rn = route_node_lookup (IF_OIFS (ifp), &p)))
- {
- rninfo = (struct eigrp_interface *) rn->info;
- route_unlock_node (rn);
- }
+ /* route_node_get implicitly locks */
+ if ((rn = route_node_lookup(IF_OIFS(ifp), &p))) {
+ rninfo = (struct eigrp_interface *)rn->info;
+ route_unlock_node(rn);
+ }
- return rninfo;
+ return rninfo;
}
-int
-eigrp_if_delete_hook (struct interface *ifp)
+int eigrp_if_delete_hook(struct interface *ifp)
{
- struct route_node *rn;
+ struct route_node *rn;
- route_table_finish (IF_OIFS (ifp));
+ route_table_finish(IF_OIFS(ifp));
- for (rn = route_top (IF_OIFS_PARAMS (ifp)); rn; rn = route_next (rn))
- if (rn->info)
- eigrp_del_if_params (rn->info);
- route_table_finish (IF_OIFS_PARAMS (ifp));
+ for (rn = route_top(IF_OIFS_PARAMS(ifp)); rn; rn = route_next(rn))
+ if (rn->info)
+ eigrp_del_if_params(rn->info);
+ route_table_finish(IF_OIFS_PARAMS(ifp));
- XFREE (MTYPE_EIGRP_IF_INFO, ifp->info);
- ifp->info = NULL;
+ XFREE(MTYPE_EIGRP_IF_INFO, ifp->info);
+ ifp->info = NULL;
- return 0;
+ return 0;
}
struct list *eigrp_iflist;
-void
-eigrp_if_init ()
+void eigrp_if_init()
{
- /* Initialize Zebra interface data structure. */
- if_add_hook (IF_NEW_HOOK, eigrp_if_new_hook);
- if_add_hook (IF_DELETE_HOOK, eigrp_if_delete_hook);
+ /* Initialize Zebra interface data structure. */
+ if_add_hook(IF_NEW_HOOK, eigrp_if_new_hook);
+ if_add_hook(IF_DELETE_HOOK, eigrp_if_delete_hook);
}
-int
-eigrp_if_new_hook (struct interface *ifp)
+int eigrp_if_new_hook(struct interface *ifp)
{
- int rc = 0;
+ int rc = 0;
- ifp->info = XCALLOC (MTYPE_EIGRP_IF_INFO, sizeof (struct eigrp_if_info));
+ ifp->info = XCALLOC(MTYPE_EIGRP_IF_INFO, sizeof(struct eigrp_if_info));
- IF_OIFS (ifp) = route_table_init ();
- IF_OIFS_PARAMS (ifp) = route_table_init ();
+ IF_OIFS(ifp) = route_table_init();
+ IF_OIFS_PARAMS(ifp) = route_table_init();
- IF_DEF_PARAMS (ifp) = eigrp_new_if_params ();
+ IF_DEF_PARAMS(ifp) = eigrp_new_if_params();
- SET_IF_PARAM (IF_DEF_PARAMS (ifp), v_hello);
- IF_DEF_PARAMS (ifp)->v_hello = (u_int32_t) EIGRP_HELLO_INTERVAL_DEFAULT;
+ SET_IF_PARAM(IF_DEF_PARAMS(ifp), v_hello);
+ IF_DEF_PARAMS(ifp)->v_hello = (u_int32_t)EIGRP_HELLO_INTERVAL_DEFAULT;
- SET_IF_PARAM (IF_DEF_PARAMS (ifp), v_wait);
- IF_DEF_PARAMS (ifp)->v_wait = (u_int16_t) EIGRP_HOLD_INTERVAL_DEFAULT;
+ SET_IF_PARAM(IF_DEF_PARAMS(ifp), v_wait);
+ IF_DEF_PARAMS(ifp)->v_wait = (u_int16_t)EIGRP_HOLD_INTERVAL_DEFAULT;
- SET_IF_PARAM (IF_DEF_PARAMS (ifp), bandwidth);
- IF_DEF_PARAMS (ifp)->bandwidth = (u_int32_t) EIGRP_BANDWIDTH_DEFAULT;
+ SET_IF_PARAM(IF_DEF_PARAMS(ifp), bandwidth);
+ IF_DEF_PARAMS(ifp)->bandwidth = (u_int32_t)EIGRP_BANDWIDTH_DEFAULT;
- SET_IF_PARAM (IF_DEF_PARAMS (ifp), delay);
- IF_DEF_PARAMS (ifp)->delay = (u_int32_t) EIGRP_DELAY_DEFAULT;
+ SET_IF_PARAM(IF_DEF_PARAMS(ifp), delay);
+ IF_DEF_PARAMS(ifp)->delay = (u_int32_t)EIGRP_DELAY_DEFAULT;
- SET_IF_PARAM (IF_DEF_PARAMS (ifp), reliability);
- IF_DEF_PARAMS (ifp)->reliability = (u_char) EIGRP_RELIABILITY_DEFAULT;
+ SET_IF_PARAM(IF_DEF_PARAMS(ifp), reliability);
+ IF_DEF_PARAMS(ifp)->reliability = (u_char)EIGRP_RELIABILITY_DEFAULT;
- SET_IF_PARAM (IF_DEF_PARAMS (ifp), load);
- IF_DEF_PARAMS (ifp)->load = (u_char) EIGRP_LOAD_DEFAULT;
+ SET_IF_PARAM(IF_DEF_PARAMS(ifp), load);
+ IF_DEF_PARAMS(ifp)->load = (u_char)EIGRP_LOAD_DEFAULT;
- SET_IF_PARAM (IF_DEF_PARAMS (ifp), auth_type);
- IF_DEF_PARAMS (ifp)->auth_type = EIGRP_AUTH_TYPE_NONE;
+ SET_IF_PARAM(IF_DEF_PARAMS(ifp), auth_type);
+ IF_DEF_PARAMS(ifp)->auth_type = EIGRP_AUTH_TYPE_NONE;
- SET_IF_PARAM (IF_DEF_PARAMS (ifp), auth_keychain);
- IF_DEF_PARAMS (ifp)->auth_keychain= NULL;
+ SET_IF_PARAM(IF_DEF_PARAMS(ifp), auth_keychain);
+ IF_DEF_PARAMS(ifp)->auth_keychain = NULL;
- return rc;
+ return rc;
}
-struct eigrp_if_params *
-eigrp_new_if_params (void)
+struct eigrp_if_params *eigrp_new_if_params(void)
{
- struct eigrp_if_params *eip;
-
- eip = XCALLOC (MTYPE_EIGRP_IF_PARAMS, sizeof (struct eigrp_if_params));
- if (!eip)
- return NULL;
-
- UNSET_IF_PARAM (eip, passive_interface);
- UNSET_IF_PARAM (eip, v_hello);
- UNSET_IF_PARAM (eip, v_wait);
- UNSET_IF_PARAM (eip, bandwidth);
- UNSET_IF_PARAM (eip, delay);
- UNSET_IF_PARAM (eip, reliability);
- UNSET_IF_PARAM (eip, load);
- UNSET_IF_PARAM (eip, auth_keychain);
- UNSET_IF_PARAM (eip, auth_type);
-
- return eip;
+ struct eigrp_if_params *eip;
+
+ eip = XCALLOC(MTYPE_EIGRP_IF_PARAMS, sizeof(struct eigrp_if_params));
+ if (!eip)
+ return NULL;
+
+ UNSET_IF_PARAM(eip, passive_interface);
+ UNSET_IF_PARAM(eip, v_hello);
+ UNSET_IF_PARAM(eip, v_wait);
+ UNSET_IF_PARAM(eip, bandwidth);
+ UNSET_IF_PARAM(eip, delay);
+ UNSET_IF_PARAM(eip, reliability);
+ UNSET_IF_PARAM(eip, load);
+ UNSET_IF_PARAM(eip, auth_keychain);
+ UNSET_IF_PARAM(eip, auth_type);
+
+ return eip;
}
-void
-eigrp_del_if_params (struct eigrp_if_params *eip)
+void eigrp_del_if_params(struct eigrp_if_params *eip)
{
- if(eip->auth_keychain)
- free(eip->auth_keychain);
+ if (eip->auth_keychain)
+ free(eip->auth_keychain);
- XFREE (MTYPE_EIGRP_IF_PARAMS, eip);
+ XFREE(MTYPE_EIGRP_IF_PARAMS, eip);
}
-struct eigrp_if_params *
-eigrp_lookup_if_params (struct interface *ifp, struct in_addr addr)
+struct eigrp_if_params *eigrp_lookup_if_params(struct interface *ifp,
+ struct in_addr addr)
{
- struct prefix_ipv4 p;
- struct route_node *rn;
+ struct prefix_ipv4 p;
+ struct route_node *rn;
- p.family = AF_INET;
- p.prefixlen = IPV4_MAX_PREFIXLEN;
- p.prefix = addr;
+ p.family = AF_INET;
+ p.prefixlen = IPV4_MAX_PREFIXLEN;
+ p.prefix = addr;
- rn = route_node_lookup (IF_OIFS_PARAMS (ifp), (struct prefix*) &p);
+ rn = route_node_lookup(IF_OIFS_PARAMS(ifp), (struct prefix *)&p);
- if (rn)
- {
- route_unlock_node (rn);
- return rn->info;
- }
+ if (rn) {
+ route_unlock_node(rn);
+ return rn->info;
+ }
- return NULL;
+ return NULL;
}
-int
-eigrp_if_up (struct eigrp_interface *ei)
+int eigrp_if_up(struct eigrp_interface *ei)
{
- struct eigrp_prefix_entry *pe;
- struct eigrp_neighbor_entry *ne;
- struct eigrp_metrics metric;
- struct eigrp_interface *ei2;
- struct listnode *node, *nnode;
- struct eigrp *eigrp = eigrp_lookup ();
-
- if (ei == NULL)
- return 0;
-
- if (eigrp != NULL)
- eigrp_adjust_sndbuflen (eigrp, ei->ifp->mtu);
- else
- zlog_warn ("%s: eigrp_lookup () returned NULL", __func__);
- eigrp_if_stream_set (ei);
-
- /* Set multicast memberships appropriately for new state. */
- eigrp_if_set_multicast (ei);
-
- thread_add_event(master, eigrp_hello_timer, ei, (1), NULL);
-
- /*Prepare metrics*/
- metric.bandwith = eigrp_bandwidth_to_scaled (EIGRP_IF_PARAM (ei,bandwidth));
- metric.delay = eigrp_delay_to_scaled (EIGRP_IF_PARAM (ei,delay));
- metric.load = EIGRP_IF_PARAM (ei,load);
- metric.reliability = EIGRP_IF_PARAM (ei,reliability);
- metric.mtu[0] = 0xDC;
- metric.mtu[1] = 0x05;
- metric.mtu[2] = 0x00;
- metric.hop_count = 0;
- metric.flags = 0;
- metric.tag = 0;
-
- /*Add connected entry to topology table*/
-
- struct prefix_ipv4 *dest_addr = prefix_ipv4_new ();
-
- dest_addr->family = AF_INET;
- dest_addr->prefix = ei->connected->address->u.prefix4;
- dest_addr->prefixlen = ei->connected->address->prefixlen;
- apply_mask_ipv4 (dest_addr);
- pe = eigrp_topology_table_lookup_ipv4 (eigrp->topology_table, dest_addr);
-
- if (pe == NULL)
- {
- pe = eigrp_prefix_entry_new ();
- pe->serno = eigrp->serno;
- pe->destination_ipv4 = dest_addr;
- pe->af = AF_INET;
- pe->nt = EIGRP_TOPOLOGY_TYPE_CONNECTED;
-
- pe->state = EIGRP_FSM_STATE_PASSIVE;
- pe->fdistance = eigrp_calculate_metrics (eigrp, &metric);
- pe->req_action |= EIGRP_FSM_NEED_UPDATE;
- eigrp_prefix_entry_add (eigrp->topology_table, pe);
- listnode_add(eigrp->topology_changes_internalIPV4, pe);
- }
- ne = eigrp_neighbor_entry_new ();
- ne->ei = ei;
- ne->reported_metric = metric;
- ne->total_metric = metric;
- ne->distance = eigrp_calculate_metrics (eigrp, &metric);
- ne->reported_distance = 0;
- ne->prefix = pe;
- ne->adv_router = eigrp->neighbor_self;
- ne->flags = EIGRP_NEIGHBOR_ENTRY_SUCCESSOR_FLAG;
- eigrp_neighbor_entry_add (pe, ne);
-
- for (ALL_LIST_ELEMENTS (eigrp->eiflist, node, nnode, ei2))
- {
- if (ei2->nbrs->count != 0)
- {
- eigrp_update_send (ei2);
- }
- }
-
- pe->req_action &= ~EIGRP_FSM_NEED_UPDATE;
- listnode_delete(eigrp->topology_changes_internalIPV4, pe);
-
- return 1;
+ struct eigrp_prefix_entry *pe;
+ struct eigrp_neighbor_entry *ne;
+ struct eigrp_metrics metric;
+ struct eigrp_interface *ei2;
+ struct listnode *node, *nnode;
+ struct eigrp *eigrp = eigrp_lookup();
+
+ if (ei == NULL)
+ return 0;
+
+ if (eigrp != NULL)
+ eigrp_adjust_sndbuflen(eigrp, ei->ifp->mtu);
+ else
+ zlog_warn("%s: eigrp_lookup () returned NULL", __func__);
+ eigrp_if_stream_set(ei);
+
+ /* Set multicast memberships appropriately for new state. */
+ eigrp_if_set_multicast(ei);
+
+ thread_add_event(master, eigrp_hello_timer, ei, (1), NULL);
+
+ /*Prepare metrics*/
+ metric.bandwidth =
+ eigrp_bandwidth_to_scaled(EIGRP_IF_PARAM(ei, bandwidth));
+ metric.delay = eigrp_delay_to_scaled(EIGRP_IF_PARAM(ei, delay));
+ metric.load = EIGRP_IF_PARAM(ei, load);
+ metric.reliability = EIGRP_IF_PARAM(ei, reliability);
+ metric.mtu[0] = 0xDC;
+ metric.mtu[1] = 0x05;
+ metric.mtu[2] = 0x00;
+ metric.hop_count = 0;
+ metric.flags = 0;
+ metric.tag = 0;
+
+ /*Add connected entry to topology table*/
+
+ struct prefix_ipv4 dest_addr;
+
+ dest_addr.family = AF_INET;
+ dest_addr.prefix = ei->connected->address->u.prefix4;
+ dest_addr.prefixlen = ei->connected->address->prefixlen;
+ apply_mask_ipv4(&dest_addr);
+ pe = eigrp_topology_table_lookup_ipv4(eigrp->topology_table,
+ &dest_addr);
+
+ if (pe == NULL) {
+ pe = eigrp_prefix_entry_new();
+ pe->serno = eigrp->serno;
+ pe->destination_ipv4 = prefix_ipv4_new();
+ prefix_copy((struct prefix *)pe->destination_ipv4,
+ (struct prefix *)&dest_addr);
+ pe->af = AF_INET;
+ pe->nt = EIGRP_TOPOLOGY_TYPE_CONNECTED;
+
+ pe->state = EIGRP_FSM_STATE_PASSIVE;
+ pe->fdistance = eigrp_calculate_metrics(eigrp, metric);
+ pe->req_action |= EIGRP_FSM_NEED_UPDATE;
+ eigrp_prefix_entry_add(eigrp->topology_table, pe);
+ listnode_add(eigrp->topology_changes_internalIPV4, pe);
+ }
+ ne = eigrp_neighbor_entry_new();
+ ne->ei = ei;
+ ne->reported_metric = metric;
+ ne->total_metric = metric;
+ ne->distance = eigrp_calculate_metrics(eigrp, metric);
+ ne->reported_distance = 0;
+ ne->prefix = pe;
+ ne->adv_router = eigrp->neighbor_self;
+ ne->flags = EIGRP_NEIGHBOR_ENTRY_SUCCESSOR_FLAG;
+ eigrp_neighbor_entry_add(pe, ne);
+
+ for (ALL_LIST_ELEMENTS(eigrp->eiflist, node, nnode, ei2)) {
+ if (ei2->nbrs->count != 0) {
+ eigrp_update_send(ei2);
+ }
+ }
+
+ pe->req_action &= ~EIGRP_FSM_NEED_UPDATE;
+ listnode_delete(eigrp->topology_changes_internalIPV4, pe);
+
+ return 1;
}
-int
-eigrp_if_down (struct eigrp_interface *ei)
+int eigrp_if_down(struct eigrp_interface *ei)
{
- struct listnode *node, *nnode;
- struct eigrp_neighbor *nbr;
+ struct listnode *node, *nnode;
+ struct eigrp_neighbor *nbr;
- if (ei == NULL)
- return 0;
+ if (ei == NULL)
+ return 0;
- /* Shutdown packet reception and sending */
- if(ei->t_hello)
- THREAD_OFF (ei->t_hello);
+ /* Shutdown packet reception and sending */
+ if (ei->t_hello)
+ THREAD_OFF(ei->t_hello);
- eigrp_if_stream_unset (ei);
+ eigrp_if_stream_unset(ei);
- /*Set infinite metrics to routes learned by this interface and start query process*/
- for (ALL_LIST_ELEMENTS (ei->nbrs, node, nnode, nbr))
- {
- eigrp_nbr_delete(nbr);
- }
+ /*Set infinite metrics to routes learned by this interface and start
+ * query process*/
+ for (ALL_LIST_ELEMENTS(ei->nbrs, node, nnode, nbr)) {
+ eigrp_nbr_delete(nbr);
+ }
- return 1;
+ return 1;
}
-void
-eigrp_if_stream_set (struct eigrp_interface *ei)
+void eigrp_if_stream_set(struct eigrp_interface *ei)
{
- /* set output fifo queue. */
- if (ei->obuf == NULL)
- ei->obuf = eigrp_fifo_new ();
+ /* set output fifo queue. */
+ if (ei->obuf == NULL)
+ ei->obuf = eigrp_fifo_new();
}
-void
-eigrp_if_stream_unset (struct eigrp_interface *ei)
+void eigrp_if_stream_unset(struct eigrp_interface *ei)
{
- struct eigrp *eigrp = ei->eigrp;
-
- if (ei->obuf)
- {
- eigrp_fifo_free (ei->obuf);
- ei->obuf = NULL;
-
- if (ei->on_write_q)
- {
- listnode_delete (eigrp->oi_write_q, ei);
- if (list_isempty (eigrp->oi_write_q))
- thread_cancel (eigrp->t_write);
- ei->on_write_q = 0;
- }
- }
+ struct eigrp *eigrp = ei->eigrp;
+
+ if (ei->obuf) {
+ eigrp_fifo_free(ei->obuf);
+ ei->obuf = NULL;
+
+ if (ei->on_write_q) {
+ listnode_delete(eigrp->oi_write_q, ei);
+ if (list_isempty(eigrp->oi_write_q))
+ thread_cancel(eigrp->t_write);
+ ei->on_write_q = 0;
+ }
+ }
}
-void
-eigrp_if_set_multicast (struct eigrp_interface *ei)
+void eigrp_if_set_multicast(struct eigrp_interface *ei)
{
- if ((EIGRP_IF_PASSIVE_STATUS (ei) == EIGRP_IF_ACTIVE))
- {
- /* The interface should belong to the EIGRP-all-routers group. */
- if (!EI_MEMBER_CHECK (ei, MEMBER_ALLROUTERS)
- && (eigrp_if_add_allspfrouters (ei->eigrp, ei->address,
- ei->ifp->ifindex) >= 0))
- /* Set the flag only if the system call to join succeeded. */
- EI_MEMBER_JOINED (ei, MEMBER_ALLROUTERS);
- }
- else
- {
- /* The interface should NOT belong to the EIGRP-all-routers group. */
- if (EI_MEMBER_CHECK (ei, MEMBER_ALLROUTERS))
- {
- /* Only actually drop if this is the last reference */
- if (EI_MEMBER_COUNT (ei, MEMBER_ALLROUTERS) == 1)
- eigrp_if_drop_allspfrouters (ei->eigrp, ei->address,
- ei->ifp->ifindex);
- /* Unset the flag regardless of whether the system call to leave
- the group succeeded, since it's much safer to assume that
- we are not a member. */
- EI_MEMBER_LEFT (ei, MEMBER_ALLROUTERS);
- }
- }
+ if ((EIGRP_IF_PASSIVE_STATUS(ei) == EIGRP_IF_ACTIVE)) {
+ /* The interface should belong to the EIGRP-all-routers group.
+ */
+ if (!EI_MEMBER_CHECK(ei, MEMBER_ALLROUTERS)
+ && (eigrp_if_add_allspfrouters(ei->eigrp, ei->address,
+ ei->ifp->ifindex)
+ >= 0))
+ /* Set the flag only if the system call to join
+ * succeeded. */
+ EI_MEMBER_JOINED(ei, MEMBER_ALLROUTERS);
+ } else {
+ /* The interface should NOT belong to the EIGRP-all-routers
+ * group. */
+ if (EI_MEMBER_CHECK(ei, MEMBER_ALLROUTERS)) {
+ /* Only actually drop if this is the last reference */
+ if (EI_MEMBER_COUNT(ei, MEMBER_ALLROUTERS) == 1)
+ eigrp_if_drop_allspfrouters(ei->eigrp,
+ ei->address,
+ ei->ifp->ifindex);
+ /* Unset the flag regardless of whether the system call
+ to leave
+ the group succeeded, since it's much safer to assume
+ that
+ we are not a member. */
+ EI_MEMBER_LEFT(ei, MEMBER_ALLROUTERS);
+ }
+ }
}
-u_char
-eigrp_default_iftype (struct interface *ifp)
+u_char eigrp_default_iftype(struct interface *ifp)
{
- if (if_is_pointopoint (ifp))
- return EIGRP_IFTYPE_POINTOPOINT;
- else if (if_is_loopback (ifp))
- return EIGRP_IFTYPE_LOOPBACK;
- else
- return EIGRP_IFTYPE_BROADCAST;
+ if (if_is_pointopoint(ifp))
+ return EIGRP_IFTYPE_POINTOPOINT;
+ else if (if_is_loopback(ifp))
+ return EIGRP_IFTYPE_LOOPBACK;
+ else
+ return EIGRP_IFTYPE_BROADCAST;
}
-void
-eigrp_if_free (struct eigrp_interface *ei, int source)
+void eigrp_if_free(struct eigrp_interface *ei, int source)
{
- struct prefix_ipv4 dest_addr;
- struct eigrp_prefix_entry *pe;
- struct eigrp *eigrp = eigrp_lookup ();
-
- if (source == INTERFACE_DOWN_BY_VTY)
- {
- THREAD_OFF (ei->t_hello);
- eigrp_hello_send(ei,EIGRP_HELLO_GRACEFUL_SHUTDOWN, NULL);
- }
-
- dest_addr.family = AF_INET;
- dest_addr.prefix = ei->connected->address->u.prefix4;
- dest_addr.prefixlen = ei->connected->address->prefixlen;
- apply_mask_ipv4(&dest_addr);
- pe = eigrp_topology_table_lookup_ipv4 (eigrp->topology_table, &dest_addr);
- if (pe)
- eigrp_prefix_entry_delete (eigrp->topology_table, pe);
-
- eigrp_if_down (ei);
-
- list_delete (ei->nbrs);
- eigrp_delete_from_if (ei->ifp, ei);
- listnode_delete (ei->eigrp->eiflist, ei);
-
- thread_cancel_event (master, ei);
-
- memset (ei, 0, sizeof (*ei));
- XFREE (MTYPE_EIGRP_IF, ei);
+ struct prefix_ipv4 dest_addr;
+ struct eigrp_prefix_entry *pe;
+ struct eigrp *eigrp = eigrp_lookup();
+
+ if (source == INTERFACE_DOWN_BY_VTY) {
+ THREAD_OFF(ei->t_hello);
+ eigrp_hello_send(ei, EIGRP_HELLO_GRACEFUL_SHUTDOWN, NULL);
+ }
+
+ dest_addr.family = AF_INET;
+ dest_addr.prefix = ei->connected->address->u.prefix4;
+ dest_addr.prefixlen = ei->connected->address->prefixlen;
+ apply_mask_ipv4(&dest_addr);
+ pe = eigrp_topology_table_lookup_ipv4(eigrp->topology_table,
+ &dest_addr);
+ if (pe)
+ eigrp_prefix_entry_delete(eigrp->topology_table, pe);
+
+ eigrp_if_down(ei);
+
+ list_delete(ei->nbrs);
+ eigrp_delete_from_if(ei->ifp, ei);
+ listnode_delete(ei->eigrp->eiflist, ei);
+
+ thread_cancel_event(master, ei);
+
+ memset(ei, 0, sizeof(*ei));
+ XFREE(MTYPE_EIGRP_IF, ei);
}
-static void
-eigrp_delete_from_if (struct interface *ifp, struct eigrp_interface *ei)
+static void eigrp_delete_from_if(struct interface *ifp,
+ struct eigrp_interface *ei)
{
- struct route_node *rn;
- struct prefix p;
-
- p = *ei->address;
- p.prefixlen = IPV4_MAX_PREFIXLEN;
-
- rn = route_node_lookup (IF_OIFS (ei->ifp), &p);
- assert (rn);
- assert (rn->info);
- rn->info = NULL;
- route_unlock_node (rn);
- route_unlock_node (rn);
+ struct route_node *rn;
+ struct prefix p;
+
+ p = *ei->address;
+ p.prefixlen = IPV4_MAX_PREFIXLEN;
+
+ rn = route_node_lookup(IF_OIFS(ei->ifp), &p);
+ assert(rn);
+ assert(rn->info);
+ rn->info = NULL;
+ route_unlock_node(rn);
+ route_unlock_node(rn);
}
/* Simulate down/up on the interface. This is needed, for example, when
the MTU changes. */
-void
-eigrp_if_reset (struct interface *ifp)
+void eigrp_if_reset(struct interface *ifp)
{
- struct route_node *rn;
+ struct route_node *rn;
- for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn))
- {
- struct eigrp_interface *ei;
+ for (rn = route_top(IF_OIFS(ifp)); rn; rn = route_next(rn)) {
+ struct eigrp_interface *ei;
- if ((ei = rn->info) == NULL)
- continue;
+ if ((ei = rn->info) == NULL)
+ continue;
- eigrp_if_down (ei);
- eigrp_if_up (ei);
- }
+ eigrp_if_down(ei);
+ eigrp_if_up(ei);
+ }
}
-struct eigrp_interface *
-eigrp_if_lookup_by_local_addr (struct eigrp *eigrp, struct interface *ifp,
- struct in_addr address)
+struct eigrp_interface *eigrp_if_lookup_by_local_addr(struct eigrp *eigrp,
+ struct interface *ifp,
+ struct in_addr address)
{
- struct listnode *node;
- struct eigrp_interface *ei;
+ struct listnode *node;
+ struct eigrp_interface *ei;
- for (ALL_LIST_ELEMENTS_RO (eigrp->eiflist, node, ei))
- {
- if (ifp && ei->ifp != ifp)
- continue;
+ for (ALL_LIST_ELEMENTS_RO(eigrp->eiflist, node, ei)) {
+ if (ifp && ei->ifp != ifp)
+ continue;
- if (IPV4_ADDR_SAME (&address, &ei->address->u.prefix4))
- return ei;
- }
+ if (IPV4_ADDR_SAME(&address, &ei->address->u.prefix4))
+ return ei;
+ }
- return NULL;
+ return NULL;
}
/**
* @par
* Function is used for lookup interface by name.
*/
-struct eigrp_interface *
-eigrp_if_lookup_by_name (struct eigrp *eigrp, const char *if_name)
+struct eigrp_interface *eigrp_if_lookup_by_name(struct eigrp *eigrp,
+ const char *if_name)
{
- struct eigrp_interface *ei;
- struct listnode *node;
-
- /* iterate over all eigrp interfaces */
- for (ALL_LIST_ELEMENTS_RO (eigrp->eiflist, node, ei))
- {
- /* compare int name with eigrp interface's name */
- if(strcmp(ei->ifp->name, if_name) == 0)
- {
- return ei;
- }
- }
-
- return NULL;
+ struct eigrp_interface *ei;
+ struct listnode *node;
+
+ /* iterate over all eigrp interfaces */
+ for (ALL_LIST_ELEMENTS_RO(eigrp->eiflist, node, ei)) {
+ /* compare int name with eigrp interface's name */
+ if (strcmp(ei->ifp->name, if_name) == 0) {
+ return ei;
+ }
+ }
+
+ return NULL;
}
/* determine receiving interface by ifp and source address */
-struct eigrp_interface *
-eigrp_if_lookup_recv_if (struct eigrp *eigrp, struct in_addr src,
- struct interface *ifp)
+struct eigrp_interface *eigrp_if_lookup_recv_if(struct eigrp *eigrp,
+ struct in_addr src,
+ struct interface *ifp)
{
- struct route_node *rn;
- struct prefix_ipv4 addr;
- struct eigrp_interface *ei, *match;
+ struct route_node *rn;
+ struct prefix_ipv4 addr;
+ struct eigrp_interface *ei, *match;
- addr.family = AF_INET;
- addr.prefix = src;
- addr.prefixlen = IPV4_MAX_BITLEN;
+ addr.family = AF_INET;
+ addr.prefix = src;
+ addr.prefixlen = IPV4_MAX_BITLEN;
- match = NULL;
+ match = NULL;
- for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn))
- {
- ei = rn->info;
+ for (rn = route_top(IF_OIFS(ifp)); rn; rn = route_next(rn)) {
+ ei = rn->info;
- if (!ei) /* oi can be NULL for PtP aliases */
- continue;
+ if (!ei) /* oi can be NULL for PtP aliases */
+ continue;
- if (if_is_loopback (ei->ifp))
- continue;
+ if (if_is_loopback(ei->ifp))
+ continue;
- if (prefix_match (CONNECTED_PREFIX (ei->connected),
- (struct prefix *) &addr))
- {
- if ((match == NULL)
- || (match->address->prefixlen < ei->address->prefixlen))
- match = ei;
- }
- }
+ if (prefix_match(CONNECTED_PREFIX(ei->connected),
+ (struct prefix *)&addr)) {
+ if ((match == NULL) || (match->address->prefixlen
+ < ei->address->prefixlen))
+ match = ei;
+ }
+ }
- return match;
+ return match;
}
-u_int32_t
-eigrp_bandwidth_to_scaled (u_int32_t bandwidth)
+u_int32_t eigrp_bandwidth_to_scaled(u_int32_t bandwidth)
{
- uint64_t temp_bandwidth = (256ull * 10000000) / bandwidth;
+ uint64_t temp_bandwidth = (256ull * 10000000) / bandwidth;
- temp_bandwidth =
- temp_bandwidth < EIGRP_MAX_METRIC ? temp_bandwidth : EIGRP_MAX_METRIC;
+ temp_bandwidth = temp_bandwidth < EIGRP_MAX_METRIC ? temp_bandwidth
+ : EIGRP_MAX_METRIC;
- return (u_int32_t) temp_bandwidth;
+ return (u_int32_t)temp_bandwidth;
}
-u_int32_t
-eigrp_scaled_to_bandwidth (u_int32_t scaled)
+u_int32_t eigrp_scaled_to_bandwidth(u_int32_t scaled)
{
- uint64_t temp_scaled = scaled * (256ull * 10000000);
+ uint64_t temp_scaled = scaled * (256ull * 10000000);
- temp_scaled =
- temp_scaled < EIGRP_MAX_METRIC ? temp_scaled : EIGRP_MAX_METRIC;
+ temp_scaled =
+ temp_scaled < EIGRP_MAX_METRIC ? temp_scaled : EIGRP_MAX_METRIC;
- return (u_int32_t) temp_scaled;
+ return (u_int32_t)temp_scaled;
}
-u_int32_t
-eigrp_delay_to_scaled (u_int32_t delay)
+u_int32_t eigrp_delay_to_scaled(u_int32_t delay)
{
- return delay * 256;
+ return delay * 256;
}
-u_int32_t
-eigrp_scaled_to_delay (u_int32_t scaled)
+u_int32_t eigrp_scaled_to_delay(u_int32_t scaled)
{
- return scaled / 256;
+ return scaled / 256;
}
projects / mirror_frr.git / blobdiff