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ospf6_area.c
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2003 Yasuhiro Ohara
*/
#include <zebra.h>
#include "log.h"
#include "memory.h"
#include "linklist.h"
#include "frrevent.h"
#include "vty.h"
#include "command.h"
#include "if.h"
#include "prefix.h"
#include "table.h"
#include "plist.h"
#include "filter.h"
#include "ospf6_proto.h"
#include "ospf6_lsa.h"
#include "ospf6_lsdb.h"
#include "ospf6_route.h"
#include "ospf6_spf.h"
#include "ospf6_top.h"
#include "ospf6_area.h"
#include "ospf6_message.h"
#include "ospf6_neighbor.h"
#include "ospf6_interface.h"
#include "ospf6_intra.h"
#include "ospf6_abr.h"
#include "ospf6_asbr.h"
#include "ospf6_zebra.h"
#include "ospf6d.h"
#include "lib/json.h"
#include "ospf6_nssa.h"
#include "ospf6d/ospf6_area_clippy.c"
DEFINE_MTYPE_STATIC(OSPF6D, OSPF6_AREA, "OSPF6 area");
DEFINE_MTYPE_STATIC(OSPF6D, OSPF6_PLISTNAME, "Prefix list name");
int str2area_id(const char *str, uint32_t *area_id, int *area_id_fmt)
{
char *ep;
*area_id = htonl(strtoul(str, &ep, 10));
if (*ep && inet_pton(AF_INET, str, area_id) != 1)
return -1;
*area_id_fmt =
!*ep ? OSPF6_AREA_FMT_DECIMAL : OSPF6_AREA_FMT_DOTTEDQUAD;
return 0;
}
void area_id2str(char *buf, int len, uint32_t area_id, int area_id_fmt)
{
if (area_id_fmt == OSPF6_AREA_FMT_DECIMAL)
snprintf(buf, len, "%u", ntohl(area_id));
else
inet_ntop(AF_INET, &area_id, buf, len);
}
int ospf6_area_cmp(void *va, void *vb)
{
struct ospf6_area *oa = (struct ospf6_area *)va;
struct ospf6_area *ob = (struct ospf6_area *)vb;
return (ntohl(oa->area_id) < ntohl(ob->area_id) ? -1 : 1);
}
/* schedule routing table recalculation */
static void ospf6_area_lsdb_hook_add(struct ospf6_lsa *lsa)
{
switch (ntohs(lsa->header->type)) {
case OSPF6_LSTYPE_ROUTER:
case OSPF6_LSTYPE_NETWORK:
if (IS_OSPF6_DEBUG_EXAMIN_TYPE(lsa->header->type)) {
zlog_debug("%s Examin LSA %s", __func__, lsa->name);
zlog_debug(" Schedule SPF Calculation for %s",
OSPF6_AREA(lsa->lsdb->data)->name);
}
ospf6_spf_schedule(
OSPF6_PROCESS(OSPF6_AREA(lsa->lsdb->data)->ospf6),
ospf6_lsadd_to_spf_reason(lsa));
break;
case OSPF6_LSTYPE_INTRA_PREFIX:
ospf6_intra_prefix_lsa_add(lsa);
break;
case OSPF6_LSTYPE_INTER_PREFIX:
case OSPF6_LSTYPE_INTER_ROUTER:
ospf6_abr_examin_summary(lsa,
(struct ospf6_area *)lsa->lsdb->data);
break;
case OSPF6_LSTYPE_TYPE_7:
ospf6_asbr_lsa_add(lsa);
break;
default:
break;
}
}
static void ospf6_area_lsdb_hook_remove(struct ospf6_lsa *lsa)
{
switch (ntohs(lsa->header->type)) {
case OSPF6_LSTYPE_ROUTER:
case OSPF6_LSTYPE_NETWORK:
if (IS_OSPF6_DEBUG_EXAMIN_TYPE(lsa->header->type)) {
zlog_debug("LSA disappearing: %s", lsa->name);
zlog_debug("Schedule SPF Calculation for %s",
OSPF6_AREA(lsa->lsdb->data)->name);
}
ospf6_spf_schedule(
OSPF6_PROCESS(OSPF6_AREA(lsa->lsdb->data)->ospf6),
ospf6_lsremove_to_spf_reason(lsa));
break;
case OSPF6_LSTYPE_INTRA_PREFIX:
ospf6_intra_prefix_lsa_remove(lsa);
break;
case OSPF6_LSTYPE_INTER_PREFIX:
case OSPF6_LSTYPE_INTER_ROUTER:
ospf6_abr_examin_summary(lsa,
(struct ospf6_area *)lsa->lsdb->data);
break;
case OSPF6_LSTYPE_TYPE_7:
ospf6_asbr_lsa_remove(lsa, NULL);
break;
default:
break;
}
}
static void ospf6_area_route_hook_add(struct ospf6_route *route)
{
struct ospf6_area *oa = route->table->scope;
struct ospf6 *ospf6 = oa->ospf6;
struct ospf6_route *copy;
copy = ospf6_route_copy(route);
ospf6_route_add(copy, ospf6->route_table);
}
static void ospf6_area_route_hook_remove(struct ospf6_route *route)
{
struct ospf6_area *oa = route->table->scope;
struct ospf6 *ospf6 = oa->ospf6;
struct ospf6_route *copy;
copy = ospf6_route_lookup_identical(route, ospf6->route_table);
if (copy)
ospf6_route_remove(copy, ospf6->route_table);
}
static void ospf6_area_stub_update(struct ospf6_area *area)
{
if (IS_AREA_STUB(area)) {
if (IS_OSPF6_DEBUG_ORIGINATE(ROUTER))
zlog_debug("Stubbing out area for area %s", area->name);
OSPF6_OPT_CLEAR(area->options, OSPF6_OPT_E);
ospf6_asbr_remove_externals_from_area(area);
} else if (IS_AREA_ENABLED(area)) {
if (IS_OSPF6_DEBUG_ORIGINATE(ROUTER))
zlog_debug("Normal area for area %s", area->name);
OSPF6_OPT_SET(area->options, OSPF6_OPT_E);
ospf6_asbr_send_externals_to_area(area);
}
OSPF6_ROUTER_LSA_SCHEDULE(area);
}
static int ospf6_area_stub_set(struct ospf6 *ospf6, struct ospf6_area *area)
{
if (!IS_AREA_STUB(area)) {
/* Disable NSSA first. */
ospf6_area_nssa_unset(ospf6, area);
SET_FLAG(area->flag, OSPF6_AREA_STUB);
ospf6_area_stub_update(area);
}
return 1;
}
void ospf6_area_stub_unset(struct ospf6 *ospf6, struct ospf6_area *area)
{
if (IS_AREA_STUB(area)) {
UNSET_FLAG(area->flag, OSPF6_AREA_STUB);
ospf6_area_stub_update(area);
}
}
static void ospf6_area_no_summary_set(struct ospf6 *ospf6,
struct ospf6_area *area)
{
if (area) {
if (!area->no_summary) {
area->no_summary = 1;
ospf6_abr_range_reset_cost(ospf6);
ospf6_abr_prefix_resummarize(ospf6);
}
}
}
static void ospf6_area_no_summary_unset(struct ospf6 *ospf6,
struct ospf6_area *area)
{
if (area) {
if (area->no_summary) {
area->no_summary = 0;
ospf6_abr_range_reset_cost(ospf6);
ospf6_abr_prefix_resummarize(ospf6);
}
}
}
static void ospf6_nssa_default_originate_set(struct ospf6 *ospf6,
struct ospf6_area *area,
int metric, int metric_type)
{
if (!area->nssa_default_originate.enabled) {
area->nssa_default_originate.enabled = true;
if (++ospf6->nssa_default_import_check.refcnt == 1) {
ospf6->nssa_default_import_check.status = false;
ospf6_zebra_import_default_route(ospf6, false);
}
}
area->nssa_default_originate.metric_value = metric;
area->nssa_default_originate.metric_type = metric_type;
}
static void ospf6_nssa_default_originate_unset(struct ospf6 *ospf6,
struct ospf6_area *area)
{
if (area->nssa_default_originate.enabled) {
area->nssa_default_originate.enabled = false;
if (--ospf6->nssa_default_import_check.refcnt == 0) {
ospf6->nssa_default_import_check.status = false;
ospf6_zebra_import_default_route(ospf6, true);
}
area->nssa_default_originate.metric_value = -1;
area->nssa_default_originate.metric_type = -1;
}
}
/**
* Make new area structure.
*
* @param area_id - ospf6 area ID
* @param o - ospf6 instance
* @param df - display format for area ID
*/
struct ospf6_area *ospf6_area_create(uint32_t area_id, struct ospf6 *o, int df)
{
struct ospf6_area *oa;
oa = XCALLOC(MTYPE_OSPF6_AREA, sizeof(struct ospf6_area));
switch (df) {
case OSPF6_AREA_FMT_DECIMAL:
snprintf(oa->name, sizeof(oa->name), "%u", ntohl(area_id));
break;
default:
case OSPF6_AREA_FMT_DOTTEDQUAD:
inet_ntop(AF_INET, &area_id, oa->name, sizeof(oa->name));
break;
}
oa->area_id = area_id;
oa->if_list = list_new();
oa->lsdb = ospf6_lsdb_create(oa);
oa->lsdb->hook_add = ospf6_area_lsdb_hook_add;
oa->lsdb->hook_remove = ospf6_area_lsdb_hook_remove;
oa->lsdb_self = ospf6_lsdb_create(oa);
oa->temp_router_lsa_lsdb = ospf6_lsdb_create(oa);
oa->spf_table = OSPF6_ROUTE_TABLE_CREATE(AREA, SPF_RESULTS);
oa->spf_table->scope = oa;
oa->route_table = OSPF6_ROUTE_TABLE_CREATE(AREA, ROUTES);
oa->route_table->scope = oa;
oa->route_table->hook_add = ospf6_area_route_hook_add;
oa->route_table->hook_remove = ospf6_area_route_hook_remove;
oa->range_table = OSPF6_ROUTE_TABLE_CREATE(AREA, PREFIX_RANGES);
oa->range_table->scope = oa;
oa->nssa_range_table = OSPF6_ROUTE_TABLE_CREATE(AREA, PREFIX_RANGES);
oa->nssa_range_table->scope = oa;
oa->summary_prefix = OSPF6_ROUTE_TABLE_CREATE(AREA, SUMMARY_PREFIXES);
oa->summary_prefix->scope = oa;
oa->summary_router = OSPF6_ROUTE_TABLE_CREATE(AREA, SUMMARY_ROUTERS);
oa->summary_router->scope = oa;
oa->router_lsa_size_limit = 1024 + 256;
/* set default options */
if (CHECK_FLAG(o->flag, OSPF6_STUB_ROUTER)) {
OSPF6_OPT_CLEAR(oa->options, OSPF6_OPT_V6);
OSPF6_OPT_CLEAR(oa->options, OSPF6_OPT_R);
} else {
OSPF6_OPT_SET(oa->options, OSPF6_OPT_V6);
OSPF6_OPT_SET(oa->options, OSPF6_OPT_R);
}
OSPF6_OPT_SET(oa->options, OSPF6_OPT_E);
SET_FLAG(oa->flag, OSPF6_AREA_ACTIVE);
SET_FLAG(oa->flag, OSPF6_AREA_ENABLE);
oa->ospf6 = o;
listnode_add_sort(o->area_list, oa);
if (area_id == OSPF_AREA_BACKBONE) {
o->backbone = oa;
}
return oa;
}
void ospf6_area_delete(struct ospf6_area *oa)
{
struct listnode *n;
struct ospf6_interface *oi;
/* The ospf6_interface structs store configuration
* information which should not be lost/reset when
* deleting an area.
* So just detach the interface from the area and
* keep it around. */
for (ALL_LIST_ELEMENTS_RO(oa->if_list, n, oi)) {
oi->area = NULL;
struct listnode *node;
struct listnode *nnode;
struct ospf6_neighbor *on;
for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
ospf6_neighbor_delete(on);
}
list_delete(&oa->if_list);
ospf6_lsdb_delete(oa->lsdb);
ospf6_lsdb_delete(oa->lsdb_self);
ospf6_lsdb_delete(oa->temp_router_lsa_lsdb);
ospf6_spf_table_finish(oa->spf_table);
ospf6_route_table_delete(oa->spf_table);
ospf6_route_table_delete(oa->route_table);
ospf6_route_table_delete(oa->range_table);
ospf6_route_table_delete(oa->nssa_range_table);
ospf6_route_table_delete(oa->summary_prefix);
ospf6_route_table_delete(oa->summary_router);
listnode_delete(oa->ospf6->area_list, oa);
oa->ospf6 = NULL;
/* free area */
XFREE(MTYPE_OSPF6_AREA, oa);
}
struct ospf6_area *ospf6_area_lookup_by_area_id(uint32_t area_id)
{
struct ospf6_area *oa;
struct listnode *n, *node, *nnode;
struct ospf6 *ospf6;
for (ALL_LIST_ELEMENTS(om6->ospf6, node, nnode, ospf6)) {
for (ALL_LIST_ELEMENTS_RO(ospf6->area_list, n, oa))
if (oa->area_id == area_id)
return oa;
}
return (struct ospf6_area *)NULL;
}
struct ospf6_area *ospf6_area_lookup(uint32_t area_id, struct ospf6 *ospf6)
{
struct ospf6_area *oa;
struct listnode *n;
for (ALL_LIST_ELEMENTS_RO(ospf6->area_list, n, oa))
if (oa->area_id == area_id)
return oa;
return (struct ospf6_area *)NULL;
}
void ospf6_area_enable(struct ospf6_area *oa)
{
struct listnode *node, *nnode;
struct ospf6_interface *oi;
SET_FLAG(oa->flag, OSPF6_AREA_ENABLE);
for (ALL_LIST_ELEMENTS(oa->if_list, node, nnode, oi))
ospf6_interface_enable(oi);
ospf6_abr_enable_area(oa);
}
void ospf6_area_disable(struct ospf6_area *oa)
{
struct listnode *node, *nnode;
struct ospf6_interface *oi;
UNSET_FLAG(oa->flag, OSPF6_AREA_ENABLE);
for (ALL_LIST_ELEMENTS(oa->if_list, node, nnode, oi))
ospf6_interface_disable(oi);
ospf6_abr_disable_area(oa);
ospf6_lsdb_remove_all(oa->lsdb);
ospf6_lsdb_remove_all(oa->lsdb_self);
ospf6_spf_table_finish(oa->spf_table);
ospf6_route_remove_all(oa->route_table);
EVENT_OFF(oa->thread_router_lsa);
EVENT_OFF(oa->thread_intra_prefix_lsa);
}
void ospf6_area_show(struct vty *vty, struct ospf6_area *oa,
json_object *json_areas, bool use_json)
{
struct listnode *i;
struct ospf6_interface *oi;
unsigned long result;
json_object *json_area;
json_object *array_interfaces;
if (use_json) {
json_area = json_object_new_object();
json_object_boolean_add(json_area, "areaIsStub",
IS_AREA_STUB(oa));
json_object_boolean_add(json_area, "areaIsNSSA",
IS_AREA_NSSA(oa));
if (IS_AREA_STUB(oa) || IS_AREA_NSSA(oa)) {
json_object_boolean_add(json_area, "areaNoSummary",
oa->no_summary);
}
json_object_int_add(json_area, "numberOfAreaScopedLsa",
oa->lsdb->count);
json_object_object_add(
json_area, "lsaStatistics",
JSON_OBJECT_NEW_ARRAY(json_object_new_int,
oa->lsdb->stats,
OSPF6_LSTYPE_SIZE));
/* Interfaces Attached */
array_interfaces = json_object_new_array();
for (ALL_LIST_ELEMENTS_RO(oa->if_list, i, oi))
json_object_array_add(
array_interfaces,
json_object_new_string(oi->interface->name));
json_object_object_add(json_area, "interfacesAttachedToArea",
array_interfaces);
if (oa->ts_spf.tv_sec || oa->ts_spf.tv_usec) {
json_object_boolean_true_add(json_area, "spfHasRun");
result = monotime_since(&oa->ts_spf, NULL);
if (result / TIMER_SECOND_MICRO > 0) {
json_object_int_add(
json_area, "spfLastExecutedSecs",
result / TIMER_SECOND_MICRO);
json_object_int_add(
json_area, "spfLastExecutedMicroSecs",
result % TIMER_SECOND_MICRO);
} else {
json_object_int_add(json_area,
"spfLastExecutedSecs", 0);
json_object_int_add(json_area,
"spfLastExecutedMicroSecs",
result);
}
} else
json_object_boolean_false_add(json_area, "spfHasRun");
json_object_object_add(json_areas, oa->name, json_area);
} else {
if (!IS_AREA_STUB(oa) && !IS_AREA_NSSA(oa))
vty_out(vty, " Area %s\n", oa->name);
else {
if (oa->no_summary) {
vty_out(vty, " Area %s[%s, No Summary]\n",
oa->name,
IS_AREA_STUB(oa) ? "Stub" : "NSSA");
} else {
vty_out(vty, " Area %s[%s]\n", oa->name,
IS_AREA_STUB(oa) ? "Stub" : "NSSA");
}
}
vty_out(vty, " Number of Area scoped LSAs is %u\n",
oa->lsdb->count);
vty_out(vty, " Interface attached to this area:");
for (ALL_LIST_ELEMENTS_RO(oa->if_list, i, oi))
vty_out(vty, " %s", oi->interface->name);
vty_out(vty, "\n");
if (oa->ts_spf.tv_sec || oa->ts_spf.tv_usec) {
result = monotime_since(&oa->ts_spf, NULL);
if (result / TIMER_SECOND_MICRO > 0) {
vty_out(vty,
" SPF last executed %ld.%lds ago\n",
result / TIMER_SECOND_MICRO,
result % TIMER_SECOND_MICRO);
} else {
vty_out(vty,
" SPF last executed %ldus ago\n",
result);
}
} else
vty_out(vty, "SPF has not been run\n");
}
}
DEFUN (area_range,
area_range_cmd,
"area <A.B.C.D|(0-4294967295)> range X:X::X:X/M [<advertise|not-advertise|cost (0-16777215)>]",
"OSPF6 area parameters\n"
"OSPF6 area ID in IP address format\n"
"OSPF6 area ID as a decimal value\n"
"Configured address range\n"
"Specify IPv6 prefix\n"
"Advertise\n"
"Do not advertise\n"
"User specified metric for this range\n"
"Advertised metric for this range\n")
{
int idx_ipv4 = 1;
int idx_ipv6_prefixlen = 3;
int idx_type = 4;
int ret;
struct ospf6_area *oa;
struct prefix prefix;
struct ospf6_route *range;
uint32_t cost;
VTY_DECLVAR_CONTEXT(ospf6, ospf6);
OSPF6_CMD_AREA_GET(argv[idx_ipv4]->arg, oa, ospf6);
ret = str2prefix(argv[idx_ipv6_prefixlen]->arg, &prefix);
if (ret != 1 || prefix.family != AF_INET6) {
vty_out(vty, "Malformed argument: %s\n",
argv[idx_ipv6_prefixlen]->arg);
return CMD_SUCCESS;
}
range = ospf6_route_lookup(&prefix, oa->range_table);
if (range == NULL) {
range = ospf6_route_create(ospf6);
range->type = OSPF6_DEST_TYPE_RANGE;
range->prefix = prefix;
range->path.area_id = oa->area_id;
range->path.cost = OSPF_AREA_RANGE_COST_UNSPEC;
}
/* default settings */
cost = OSPF_AREA_RANGE_COST_UNSPEC;
UNSET_FLAG(range->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE);
if (argc > idx_type) {
if (strmatch(argv[idx_type]->text, "not-advertise"))
SET_FLAG(range->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE);
else if (strmatch(argv[idx_type]->text, "cost"))
cost = strtoul(argv[5]->arg, NULL, 10);
}
range->path.u.cost_config = cost;
if (range->rnode == NULL) {
ospf6_route_add(range, oa->range_table);
}
if (ospf6_check_and_set_router_abr(ospf6)) {
/* Redo summaries if required */
ospf6_abr_prefix_resummarize(ospf6);
}
return CMD_SUCCESS;
}
DEFUN (no_area_range,
no_area_range_cmd,
"no area <A.B.C.D|(0-4294967295)> range X:X::X:X/M [<advertise|not-advertise|cost (0-16777215)>]",
NO_STR
"OSPF6 area parameters\n"
"OSPF6 area ID in IP address format\n"
"OSPF6 area ID as a decimal value\n"
"Configured address range\n"
"Specify IPv6 prefix\n"
"Advertise\n"
"Do not advertise\n"
"User specified metric for this range\n"
"Advertised metric for this range\n")
{
int idx_ipv4 = 2;
int idx_ipv6 = 4;
int ret;
struct ospf6_area *oa;
struct prefix prefix;
struct ospf6_route *range, *route;
VTY_DECLVAR_CONTEXT(ospf6, ospf6);
OSPF6_CMD_AREA_GET(argv[idx_ipv4]->arg, oa, ospf6);
ret = str2prefix(argv[idx_ipv6]->arg, &prefix);
if (ret != 1 || prefix.family != AF_INET6) {
vty_out(vty, "Malformed argument: %s\n", argv[idx_ipv6]->arg);
return CMD_SUCCESS;
}
range = ospf6_route_lookup(&prefix, oa->range_table);
if (range == NULL) {
vty_out(vty, "Range %s does not exists.\n",
argv[idx_ipv6]->arg);
return CMD_SUCCESS;
}
if (ospf6_check_and_set_router_abr(oa->ospf6)) {
/* Blow away the aggregated LSA and route */
SET_FLAG(range->flag, OSPF6_ROUTE_REMOVE);
/* Redo summaries if required */
for (route = ospf6_route_head(oa->ospf6->route_table); route;
route = ospf6_route_next(route))
ospf6_abr_originate_summary(route, oa->ospf6);
/* purge the old aggregated summary LSA */
ospf6_abr_originate_summary(range, oa->ospf6);
}
ospf6_route_remove(range, oa->range_table);
return CMD_SUCCESS;
}
void ospf6_area_config_write(struct vty *vty, struct ospf6 *ospf6)
{
struct listnode *node;
struct ospf6_area *oa;
struct ospf6_route *range;
for (ALL_LIST_ELEMENTS_RO(ospf6->area_list, node, oa)) {
for (range = ospf6_route_head(oa->range_table); range;
range = ospf6_route_next(range)) {
vty_out(vty, " area %s range %pFX", oa->name,
&range->prefix);
if (CHECK_FLAG(range->flag,
OSPF6_ROUTE_DO_NOT_ADVERTISE)) {
vty_out(vty, " not-advertise");
} else {
// "advertise" is the default so we do not
// display it
if (range->path.u.cost_config
!= OSPF_AREA_RANGE_COST_UNSPEC)
vty_out(vty, " cost %d",
range->path.u.cost_config);
}
vty_out(vty, "\n");
}
if (IS_AREA_STUB(oa)) {
if (oa->no_summary)
vty_out(vty, " area %s stub no-summary\n",
oa->name);
else
vty_out(vty, " area %s stub\n", oa->name);
}
if (IS_AREA_NSSA(oa)) {
vty_out(vty, " area %s nssa", oa->name);
if (oa->nssa_default_originate.enabled) {
vty_out(vty, " default-information-originate");
if (oa->nssa_default_originate.metric_value
!= -1)
vty_out(vty, " metric %d",
oa->nssa_default_originate
.metric_value);
if (oa->nssa_default_originate.metric_type
!= DEFAULT_METRIC_TYPE)
vty_out(vty, " metric-type 1");
}
if (oa->no_summary)
vty_out(vty, " no-summary");
vty_out(vty, "\n");
}
for (range = ospf6_route_head(oa->nssa_range_table); range;
range = ospf6_route_next(range)) {
vty_out(vty, " area %s nssa range %pFX", oa->name,
&range->prefix);
if (CHECK_FLAG(range->flag,
OSPF6_ROUTE_DO_NOT_ADVERTISE)) {
vty_out(vty, " not-advertise");
} else {
if (range->path.u.cost_config
!= OSPF_AREA_RANGE_COST_UNSPEC)
vty_out(vty, " cost %u",
range->path.u.cost_config);
}
vty_out(vty, "\n");
}
if (PREFIX_NAME_IN(oa))
vty_out(vty, " area %s filter-list prefix %s in\n",
oa->name, PREFIX_NAME_IN(oa));
if (PREFIX_NAME_OUT(oa))
vty_out(vty, " area %s filter-list prefix %s out\n",
oa->name, PREFIX_NAME_OUT(oa));
if (IMPORT_NAME(oa))
vty_out(vty, " area %s import-list %s\n", oa->name,
IMPORT_NAME(oa));
if (EXPORT_NAME(oa))
vty_out(vty, " area %s export-list %s\n", oa->name,
EXPORT_NAME(oa));
}
}
DEFUN (area_filter_list,
area_filter_list_cmd,
"area <A.B.C.D|(0-4294967295)> filter-list prefix PREFIXLIST6_NAME <in|out>",
"OSPF6 area parameters\n"
"OSPF6 area ID in IP address format\n"
"OSPF6 area ID as a decimal value\n"
"Filter networks between OSPF6 areas\n"
"Filter prefixes between OSPF6 areas\n"
"Name of an IPv6 prefix-list\n"
"Filter networks sent to this area\n"
"Filter networks sent from this area\n")
{
char *inout = argv[argc - 1]->text;
char *areaid = argv[1]->arg;
char *plistname = argv[4]->arg;
struct ospf6_area *area;
struct prefix_list *plist;
VTY_DECLVAR_CONTEXT(ospf6, ospf6);
OSPF6_CMD_AREA_GET(areaid, area, ospf6);
plist = prefix_list_lookup(AFI_IP6, plistname);
if (strmatch(inout, "in")) {
PREFIX_LIST_IN(area) = plist;
XFREE(MTYPE_OSPF6_PLISTNAME, PREFIX_NAME_IN(area));
PREFIX_NAME_IN(area) =
XSTRDUP(MTYPE_OSPF6_PLISTNAME, plistname);
} else {
PREFIX_LIST_OUT(area) = plist;
XFREE(MTYPE_OSPF6_PLISTNAME, PREFIX_NAME_OUT(area));
PREFIX_NAME_OUT(area) =
XSTRDUP(MTYPE_OSPF6_PLISTNAME, plistname);
}
/* Redo summaries if required */
if (ospf6_check_and_set_router_abr(area->ospf6))
ospf6_schedule_abr_task(ospf6);
return CMD_SUCCESS;
}
DEFUN (no_area_filter_list,
no_area_filter_list_cmd,
"no area <A.B.C.D|(0-4294967295)> filter-list prefix PREFIXLIST6_NAME <in|out>",
NO_STR
"OSPF6 area parameters\n"
"OSPF6 area ID in IP address format\n"
"OSPF6 area ID as a decimal value\n"
"Filter networks between OSPF6 areas\n"
"Filter prefixes between OSPF6 areas\n"
"Name of an IPv6 prefix-list\n"
"Filter networks sent to this area\n"
"Filter networks sent from this area\n")
{
char *inout = argv[argc - 1]->text;
char *areaid = argv[2]->arg;
char *plistname = argv[5]->arg;
struct ospf6_area *area;
VTY_DECLVAR_CONTEXT(ospf6, ospf6);
OSPF6_CMD_AREA_GET(areaid, area, ospf6);
if (strmatch(inout, "in")) {
if (PREFIX_NAME_IN(area))
if (!strmatch(PREFIX_NAME_IN(area), plistname))
return CMD_SUCCESS;
PREFIX_LIST_IN(area) = NULL;
XFREE(MTYPE_OSPF6_PLISTNAME, PREFIX_NAME_IN(area));
} else {
if (PREFIX_NAME_OUT(area))
if (!strmatch(PREFIX_NAME_OUT(area), plistname))
return CMD_SUCCESS;
XFREE(MTYPE_OSPF6_PLISTNAME, PREFIX_NAME_OUT(area));
PREFIX_LIST_OUT(area) = NULL;
}
/* Redo summaries if required */
if (ospf6_check_and_set_router_abr(area->ospf6))
ospf6_schedule_abr_task(ospf6);
return CMD_SUCCESS;
}
void ospf6_filter_update(struct access_list *access)
{
struct ospf6_area *oa;
struct listnode *n, *node, *nnode;
struct ospf6 *ospf6;
for (ALL_LIST_ELEMENTS(om6->ospf6, node, nnode, ospf6)) {
bool update = false;
for (ALL_LIST_ELEMENTS_RO(ospf6->area_list, n, oa)) {
if (IMPORT_NAME(oa)
&& strcmp(IMPORT_NAME(oa), access->name) == 0) {
IMPORT_LIST(oa) = access_list_lookup(
AFI_IP6, IMPORT_NAME(oa));
update = true;
}
if (EXPORT_NAME(oa)
&& strcmp(EXPORT_NAME(oa), access->name) == 0) {
EXPORT_LIST(oa) = access_list_lookup(
AFI_IP6, EXPORT_NAME(oa));
update = true;
}
}
if (update && ospf6_check_and_set_router_abr(ospf6))
ospf6_schedule_abr_task(ospf6);
}
}
void ospf6_plist_update(struct prefix_list *plist)
{
struct listnode *node, *nnode;
struct ospf6_area *oa;
struct listnode *n;
const char *name = prefix_list_name(plist);
struct ospf6 *ospf6 = NULL;
if (prefix_list_afi(plist) != AFI_IP6)
return;
for (ALL_LIST_ELEMENTS(om6->ospf6, node, nnode, ospf6)) {
bool update = false;
for (ALL_LIST_ELEMENTS_RO(ospf6->area_list, n, oa)) {
if (PREFIX_NAME_IN(oa)
&& !strcmp(PREFIX_NAME_IN(oa), name)) {
PREFIX_LIST_IN(oa) = prefix_list_lookup(
AFI_IP6, PREFIX_NAME_IN(oa));
update = true;
}
if (PREFIX_NAME_OUT(oa)
&& !strcmp(PREFIX_NAME_OUT(oa), name)) {
PREFIX_LIST_OUT(oa) = prefix_list_lookup(
AFI_IP6, PREFIX_NAME_OUT(oa));
update = true;
}
}
if (update && ospf6_check_and_set_router_abr(ospf6))
ospf6_schedule_abr_task(ospf6);
}
}
DEFUN (area_import_list,
area_import_list_cmd,
"area <A.B.C.D|(0-4294967295)> import-list ACCESSLIST6_NAME",
"OSPF6 area parameters\n"
"OSPF6 area ID in IP address format\n"
"OSPF6 area ID as a decimal value\n"
"Set the filter for networks from other areas announced to the specified one\n"
"Name of the access-list\n")
{
int idx_ipv4 = 1;
int idx_name = 3;
struct ospf6_area *area;
struct access_list *list;
VTY_DECLVAR_CONTEXT(ospf6, ospf6);
OSPF6_CMD_AREA_GET(argv[idx_ipv4]->arg, area, ospf6);
list = access_list_lookup(AFI_IP6, argv[idx_name]->arg);
IMPORT_LIST(area) = list;
if (IMPORT_NAME(area))
free(IMPORT_NAME(area));
IMPORT_NAME(area) = strdup(argv[idx_name]->arg);
if (ospf6_check_and_set_router_abr(area->ospf6))
ospf6_schedule_abr_task(ospf6);
return CMD_SUCCESS;
}
DEFUN (no_area_import_list,
no_area_import_list_cmd,
"no area <A.B.C.D|(0-4294967295)> import-list ACCESSLIST6_NAME",
NO_STR
"OSPF6 area parameters\n"
"OSPF6 area ID in IP address format\n"
"OSPF6 area ID as a decimal value\n"
"Unset the filter for networks announced to other areas\n"
"Name of the access-list\n")
{
int idx_ipv4 = 2;
struct ospf6_area *area;
VTY_DECLVAR_CONTEXT(ospf6, ospf6);
OSPF6_CMD_AREA_GET(argv[idx_ipv4]->arg, area, ospf6);
IMPORT_LIST(area) = NULL;
if (IMPORT_NAME(area))
free(IMPORT_NAME(area));
IMPORT_NAME(area) = NULL;
if (ospf6_check_and_set_router_abr(area->ospf6))
ospf6_schedule_abr_task(ospf6);
return CMD_SUCCESS;
}
DEFUN (area_export_list,
area_export_list_cmd,
"area <A.B.C.D|(0-4294967295)> export-list ACCESSLIST6_NAME",
"OSPF6 area parameters\n"
"OSPF6 area ID in IP address format\n"
"OSPF6 area ID as a decimal value\n"
"Set the filter for networks announced to other areas\n"
"Name of the access-list\n")
{
int idx_ipv4 = 1;
int idx_name = 3;
struct ospf6_area *area;
struct access_list *list;
VTY_DECLVAR_CONTEXT(ospf6, ospf6);
OSPF6_CMD_AREA_GET(argv[idx_ipv4]->arg, area, ospf6);
list = access_list_lookup(AFI_IP6, argv[idx_name]->arg);
EXPORT_LIST(area) = list;
if (EXPORT_NAME(area))
free(EXPORT_NAME(area));
EXPORT_NAME(area) = strdup(argv[idx_name]->arg);
/* Redo summaries if required */
if (ospf6_check_and_set_router_abr(area->ospf6))
ospf6_schedule_abr_task(ospf6);
return CMD_SUCCESS;
}
DEFUN (no_area_export_list,
no_area_export_list_cmd,
"no area <A.B.C.D|(0-4294967295)> export-list ACCESSLIST6_NAME",
NO_STR
"OSPF6 area parameters\n"
"OSPF6 area ID in IP address format\n"
"OSPF6 area ID as a decimal value\n"
"Unset the filter for networks announced to other areas\n"
"Name of the access-list\n")
{
int idx_ipv4 = 2;
struct ospf6_area *area;
VTY_DECLVAR_CONTEXT(ospf6, ospf6);
OSPF6_CMD_AREA_GET(argv[idx_ipv4]->arg, area, ospf6);
EXPORT_LIST(area) = NULL;
if (EXPORT_NAME(area))
free(EXPORT_NAME(area));