#include "eigrpd/eigrp_memory.h"
#include "eigrpd/eigrp_fsm.h"
-static void eigrp_delete_from_if(struct interface *, struct eigrp_interface *);
-
-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 eigrp_interface *eigrp_if_new(struct eigrp *eigrp, struct interface *ifp,
struct prefix *p)
{
- struct eigrp_interface *ei;
+ struct eigrp_interface *ei = ifp->info;
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
+ if (ei)
return ei;
+ ei = XCALLOC(MTYPE_EIGRP_IF, sizeof(struct eigrp_interface));
+
/* Set zebra interface pointer. */
ei->ifp = ifp;
ei->address = p;
- eigrp_add_to_if(ifp, ei);
+ ifp->info = ei;
listnode_add(eigrp->eiflist, ei);
ei->type = EIGRP_IFTYPE_BROADCAST;
ei->routemap[i] = NULL;
}
- return ei;
-}
-
-/* lookup ei for specified prefix/ifp */
-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;
+ ei->eigrp = eigrp;
- p = *prefix;
- p.prefixlen = IPV4_MAX_PREFIXLEN;
+ ei->params.v_hello = EIGRP_HELLO_INTERVAL_DEFAULT;
+ ei->params.v_wait = EIGRP_HOLD_INTERVAL_DEFAULT;
+ ei->params.bandwidth = EIGRP_BANDWIDTH_DEFAULT;
+ ei->params.delay = EIGRP_DELAY_DEFAULT;
+ ei->params.reliability = EIGRP_RELIABILITY_DEFAULT;
+ ei->params.load = EIGRP_LOAD_DEFAULT;
+ ei->params.auth_type = EIGRP_AUTH_TYPE_NONE;
+ ei->params.auth_keychain = NULL;
- /* 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 ei;
}
int eigrp_if_delete_hook(struct interface *ifp)
{
- struct route_node *rn;
+ struct eigrp_interface *ei = ifp->info;
+ struct eigrp *eigrp;
- route_table_finish(IF_OIFS(ifp));
+ if (!ei)
+ return 0;
- 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));
+ list_delete(&ei->nbrs);
+
+ eigrp = ei->eigrp;
+ listnode_delete(eigrp->eiflist, ei);
XFREE(MTYPE_EIGRP_IF_INFO, ifp->info);
ifp->info = NULL;
void eigrp_if_init()
{
/* Initialize Zebra interface data structure. */
- hook_register_prio(if_add, 0, eigrp_if_new_hook);
+ // hook_register_prio(if_add, 0, eigrp_if_new);
hook_register_prio(if_del, 0, eigrp_if_delete_hook);
}
-int eigrp_if_new_hook(struct interface *ifp)
-{
- int rc = 0;
-
- 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_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_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), 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), 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_keychain);
- IF_DEF_PARAMS(ifp)->auth_keychain = NULL;
-
- return rc;
-}
-
-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;
-}
void eigrp_del_if_params(struct eigrp_if_params *eip)
{
if (eip->auth_keychain)
free(eip->auth_keychain);
-
- XFREE(MTYPE_EIGRP_IF_PARAMS, eip);
-}
-
-struct eigrp_if_params *eigrp_lookup_if_params(struct interface *ifp,
- struct in_addr addr)
-{
- struct prefix p;
- struct route_node *rn;
-
- p.family = AF_INET;
- p.prefixlen = IPV4_MAX_PREFIXLEN;
- p.u.prefix4 = addr;
-
- rn = route_node_lookup(IF_OIFS_PARAMS(ifp), &p);
-
- if (rn) {
- route_unlock_node(rn);
- return rn->info;
- }
-
- return NULL;
}
int eigrp_if_up(struct eigrp_interface *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.bandwidth = eigrp_bandwidth_to_scaled(ei->params.bandwidth);
+ metric.delay = eigrp_delay_to_scaled(ei->params.delay);
+ metric.load = ei->params.load;
+ metric.reliability = ei->params.reliability;
metric.mtu[0] = 0xDC;
metric.mtu[1] = 0x05;
metric.mtu[2] = 0x00;
struct prefix dest_addr;
- dest_addr.family = AF_INET;
- dest_addr.u.prefix4 = ei->connected->address->u.prefix4;
- dest_addr.prefixlen = ei->connected->address->prefixlen;
+ dest_addr = *ei->address;
apply_mask(&dest_addr);
pe = eigrp_topology_table_lookup_ipv4(eigrp->topology_table,
&dest_addr);
}
}
+bool eigrp_if_is_passive(struct eigrp_interface *ei)
+{
+ if (ei->params.passive_interface == EIGRP_IF_ACTIVE)
+ return false;
+
+ if (ei->eigrp->passive_interface_default == EIGRP_IF_ACTIVE)
+ return false;
+
+ return true;
+}
+
void eigrp_if_set_multicast(struct eigrp_interface *ei)
{
- if ((EIGRP_IF_PASSIVE_STATUS(ei) == EIGRP_IF_ACTIVE)) {
+ if (!eigrp_if_is_passive(ei)) {
/* The interface should belong to the EIGRP-all-routers group.
*/
- if (!EI_MEMBER_CHECK(ei, MEMBER_ALLROUTERS)
+ if (!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);
+ ei->member_allrouters = true;
} else {
/* The interface should NOT belong to the EIGRP-all-routers
* group. */
- if (EI_MEMBER_CHECK(ei, MEMBER_ALLROUTERS)) {
+ if (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);
+ 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);
+ ei->member_allrouters = false;
}
}
}
-u_char eigrp_default_iftype(struct interface *ifp)
+uint8_t eigrp_default_iftype(struct interface *ifp)
{
if (if_is_pointopoint(ifp))
return EIGRP_IFTYPE_POINTOPOINT;
struct eigrp_prefix_entry *pe;
struct eigrp *eigrp = eigrp_lookup();
+ if (!eigrp)
+ return;
+
if (source == INTERFACE_DOWN_BY_VTY) {
THREAD_OFF(ei->t_hello);
eigrp_hello_send(ei, EIGRP_HELLO_GRACEFUL_SHUTDOWN, NULL);
}
- dest_addr = *ei->connected->address;
+ dest_addr = *ei->address;
apply_mask(&dest_addr);
pe = eigrp_topology_table_lookup_ipv4(eigrp->topology_table,
&dest_addr);
eigrp_if_down(ei);
- list_delete(ei->nbrs);
- eigrp_delete_from_if(ei->ifp, ei);
+ list_delete(&ei->nbrs);
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)
-{
- 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)
{
- struct route_node *rn;
+ struct eigrp_interface *ei = ifp->info;
- for (rn = route_top(IF_OIFS(ifp)); rn; rn = route_next(rn)) {
- struct eigrp_interface *ei;
+ if (!ei)
+ return;
- 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,
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 route_node *rn;
- struct prefix addr;
- struct eigrp_interface *ei, *match;
-
- addr.family = AF_INET;
- addr.u.prefix4 = src;
- addr.prefixlen = IPV4_MAX_BITLEN;
-
- match = NULL;
-
- 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 (if_is_loopback(ei->ifp))
- continue;
-
- if (prefix_match(CONNECTED_PREFIX(ei->connected),
- &addr)) {
- if ((match == NULL) || (match->address->prefixlen
- < ei->address->prefixlen))
- match = ei;
- }
- }
-
- return match;
-}
-
-u_int32_t eigrp_bandwidth_to_scaled(u_int32_t bandwidth)
+uint32_t eigrp_bandwidth_to_scaled(uint32_t bandwidth)
{
uint64_t temp_bandwidth = (256ull * 10000000) / bandwidth;
temp_bandwidth = temp_bandwidth < EIGRP_MAX_METRIC ? temp_bandwidth
: EIGRP_MAX_METRIC;
- return (u_int32_t)temp_bandwidth;
+ return (uint32_t)temp_bandwidth;
}
-u_int32_t eigrp_scaled_to_bandwidth(u_int32_t scaled)
+uint32_t eigrp_scaled_to_bandwidth(uint32_t scaled)
{
uint64_t temp_scaled = scaled * (256ull * 10000000);
temp_scaled =
temp_scaled < EIGRP_MAX_METRIC ? temp_scaled : EIGRP_MAX_METRIC;
- return (u_int32_t)temp_scaled;
+ return (uint32_t)temp_scaled;
}
-u_int32_t eigrp_delay_to_scaled(u_int32_t delay)
+uint32_t eigrp_delay_to_scaled(uint32_t delay)
{
return delay * 256;
}
-u_int32_t eigrp_scaled_to_delay(u_int32_t scaled)
+uint32_t eigrp_scaled_to_delay(uint32_t scaled)
{
return scaled / 256;
}
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