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ospf_opaque.c
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/*
* This is an implementation of rfc2370.
* Copyright (C) 2001 KDD R&D Laboratories, Inc.
* http://www.kddlabs.co.jp/
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#include "linklist.h"
#include "prefix.h"
#include "if.h"
#include "table.h"
#include "memory.h"
#include "command.h"
#include "vty.h"
#include "stream.h"
#include "log.h"
#include "thread.h"
#include "hash.h"
#include "sockunion.h" /* for inet_aton() */
#include "ospfd/ospfd.h"
#include "ospfd/ospf_interface.h"
#include "ospfd/ospf_ism.h"
#include "ospfd/ospf_asbr.h"
#include "ospfd/ospf_lsa.h"
#include "ospfd/ospf_lsdb.h"
#include "ospfd/ospf_neighbor.h"
#include "ospfd/ospf_nsm.h"
#include "ospfd/ospf_flood.h"
#include "ospfd/ospf_packet.h"
#include "ospfd/ospf_spf.h"
#include "ospfd/ospf_dump.h"
#include "ospfd/ospf_route.h"
#include "ospfd/ospf_ase.h"
#include "ospfd/ospf_zebra.h"
#include "ospfd/ospf_te.h"
#include "ospfd/ospf_sr.h"
#include "ospfd/ospf_ri.h"
#include "ospfd/ospf_ext.h"
#include "ospfd/ospf_errors.h"
DEFINE_MTYPE_STATIC(OSPFD, OSPF_OPAQUE_FUNCTAB, "OSPF opaque function table")
DEFINE_MTYPE_STATIC(OSPFD, OPAQUE_INFO_PER_TYPE, "OSPF opaque per-type info")
DEFINE_MTYPE_STATIC(OSPFD, OPAQUE_INFO_PER_ID, "OSPF opaque per-ID info")
/*------------------------------------------------------------------------*
* Followings are initialize/terminate functions for Opaque-LSAs handling.
*------------------------------------------------------------------------*/
#ifdef SUPPORT_OSPF_API
int ospf_apiserver_init(void);
void ospf_apiserver_term(void);
/* Init apiserver? It's disabled by default. */
int ospf_apiserver_enable;
#endif /* SUPPORT_OSPF_API */
static void ospf_opaque_register_vty(void);
static void ospf_opaque_funclist_init(void);
static void ospf_opaque_funclist_term(void);
static void free_opaque_info_per_type(void *val);
static void free_opaque_info_per_id(void *val);
static void free_opaque_info_owner(void *val);
static int ospf_opaque_lsa_install_hook(struct ospf_lsa *lsa);
static int ospf_opaque_lsa_delete_hook(struct ospf_lsa *lsa);
void ospf_opaque_init(void)
{
ospf_opaque_register_vty();
ospf_opaque_funclist_init();
if (ospf_mpls_te_init() != 0)
exit(1);
/* Segment Routing init */
if (ospf_sr_init() != 0)
exit(1);
if (ospf_router_info_init() != 0)
exit(1);
if (ospf_ext_init() != 0)
exit(1);
#ifdef SUPPORT_OSPF_API
if ((ospf_apiserver_enable) && (ospf_apiserver_init() != 0))
exit(1);
#endif /* SUPPORT_OSPF_API */
return;
}
void ospf_opaque_term(void)
{
ospf_mpls_te_term();
ospf_router_info_term();
ospf_ext_term();
ospf_sr_term();
#ifdef SUPPORT_OSPF_API
ospf_apiserver_term();
#endif /* SUPPORT_OSPF_API */
ospf_opaque_funclist_term();
return;
}
void ospf_opaque_finish(void)
{
ospf_router_info_finish();
ospf_ext_finish();
ospf_sr_finish();
}
int ospf_opaque_type9_lsa_init(struct ospf_interface *oi)
{
if (oi->opaque_lsa_self != NULL)
list_delete(&oi->opaque_lsa_self);
oi->opaque_lsa_self = list_new();
oi->opaque_lsa_self->del = free_opaque_info_per_type;
oi->t_opaque_lsa_self = NULL;
return 0;
}
void ospf_opaque_type9_lsa_term(struct ospf_interface *oi)
{
OSPF_TIMER_OFF(oi->t_opaque_lsa_self);
if (oi->opaque_lsa_self != NULL)
list_delete(&oi->opaque_lsa_self);
oi->opaque_lsa_self = NULL;
return;
}
int ospf_opaque_type10_lsa_init(struct ospf_area *area)
{
if (area->opaque_lsa_self != NULL)
list_delete(&area->opaque_lsa_self);
area->opaque_lsa_self = list_new();
area->opaque_lsa_self->del = free_opaque_info_per_type;
area->t_opaque_lsa_self = NULL;
#ifdef MONITOR_LSDB_CHANGE
area->lsdb->new_lsa_hook = ospf_opaque_lsa_install_hook;
area->lsdb->del_lsa_hook = ospf_opaque_lsa_delete_hook;
#endif /* MONITOR_LSDB_CHANGE */
return 0;
}
void ospf_opaque_type10_lsa_term(struct ospf_area *area)
{
#ifdef MONITOR_LSDB_CHANGE
area->lsdb->new_lsa_hook = area->lsdb->del_lsa_hook = NULL;
#endif /* MONITOR_LSDB_CHANGE */
OSPF_TIMER_OFF(area->t_opaque_lsa_self);
if (area->opaque_lsa_self != NULL)
list_delete(&area->opaque_lsa_self);
return;
}
int ospf_opaque_type11_lsa_init(struct ospf *top)
{
if (top->opaque_lsa_self != NULL)
list_delete(&top->opaque_lsa_self);
top->opaque_lsa_self = list_new();
top->opaque_lsa_self->del = free_opaque_info_per_type;
top->t_opaque_lsa_self = NULL;
#ifdef MONITOR_LSDB_CHANGE
top->lsdb->new_lsa_hook = ospf_opaque_lsa_install_hook;
top->lsdb->del_lsa_hook = ospf_opaque_lsa_delete_hook;
#endif /* MONITOR_LSDB_CHANGE */
return 0;
}
void ospf_opaque_type11_lsa_term(struct ospf *top)
{
#ifdef MONITOR_LSDB_CHANGE
top->lsdb->new_lsa_hook = top->lsdb->del_lsa_hook = NULL;
#endif /* MONITOR_LSDB_CHANGE */
OSPF_TIMER_OFF(top->t_opaque_lsa_self);
if (top->opaque_lsa_self != NULL)
list_delete(&top->opaque_lsa_self);
return;
}
static const char *ospf_opaque_type_name(uint8_t opaque_type)
{
const char *name = "Unknown";
switch (opaque_type) {
case OPAQUE_TYPE_WILDCARD: /* This is a special assignment! */
name = "Wildcard";
break;
case OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA:
name = "Traffic Engineering LSA";
break;
case OPAQUE_TYPE_SYCAMORE_OPTICAL_TOPOLOGY_DESC:
name = "Sycamore optical topology description";
break;
case OPAQUE_TYPE_GRACE_LSA:
name = "Grace-LSA";
break;
case OPAQUE_TYPE_INTER_AS_LSA:
name = "Inter-AS TE-v2 LSA";
break;
case OPAQUE_TYPE_ROUTER_INFORMATION_LSA:
name = "Router Information LSA";
break;
case OPAQUE_TYPE_EXTENDED_PREFIX_LSA:
name = "Extended Prefix Opaque LSA";
break;
case OPAQUE_TYPE_EXTENDED_LINK_LSA:
name = "Extended Link Opaque LSA";
break;
default:
if (OPAQUE_TYPE_RANGE_UNASSIGNED(opaque_type))
name = "Unassigned";
else {
uint32_t bigger_range = opaque_type;
/*
* Get around type-limits warning: comparison is always
* true due to limited range of data type
*/
if (OPAQUE_TYPE_RANGE_RESERVED(bigger_range))
name = "Private/Experimental";
}
break;
}
return name;
}
/*------------------------------------------------------------------------*
* Followings are management functions to store user specified callbacks.
*------------------------------------------------------------------------*/
struct opaque_info_per_type; /* Forward declaration. */
struct ospf_opaque_functab {
uint8_t opaque_type;
struct opaque_info_per_type *oipt;
int (*new_if_hook)(struct interface *ifp);
int (*del_if_hook)(struct interface *ifp);
void (*ism_change_hook)(struct ospf_interface *oi, int old_status);
void (*nsm_change_hook)(struct ospf_neighbor *nbr, int old_status);
void (*config_write_router)(struct vty *vty);
void (*config_write_if)(struct vty *vty, struct interface *ifp);
void (*config_write_debug)(struct vty *vty);
void (*show_opaque_info)(struct vty *vty, struct ospf_lsa *lsa);
int (*lsa_originator)(void *arg);
struct ospf_lsa *(*lsa_refresher)(struct ospf_lsa *lsa);
int (*new_lsa_hook)(struct ospf_lsa *lsa);
int (*del_lsa_hook)(struct ospf_lsa *lsa);
};
/* Handle LSA-9/10/11 altogether. */
static struct list *ospf_opaque_wildcard_funclist;
static struct list *ospf_opaque_type9_funclist;
static struct list *ospf_opaque_type10_funclist;
static struct list *ospf_opaque_type11_funclist;
static void ospf_opaque_del_functab(void *val)
{
XFREE(MTYPE_OSPF_OPAQUE_FUNCTAB, val);
return;
}
static void ospf_opaque_funclist_init(void)
{
struct list *funclist;
funclist = ospf_opaque_wildcard_funclist = list_new();
funclist->del = ospf_opaque_del_functab;
funclist = ospf_opaque_type9_funclist = list_new();
funclist->del = ospf_opaque_del_functab;
funclist = ospf_opaque_type10_funclist = list_new();
funclist->del = ospf_opaque_del_functab;
funclist = ospf_opaque_type11_funclist = list_new();
funclist->del = ospf_opaque_del_functab;
return;
}
static void ospf_opaque_funclist_term(void)
{
struct list *funclist;
funclist = ospf_opaque_wildcard_funclist;
list_delete(&funclist);
funclist = ospf_opaque_type9_funclist;
list_delete(&funclist);
funclist = ospf_opaque_type10_funclist;
list_delete(&funclist);
funclist = ospf_opaque_type11_funclist;
list_delete(&funclist);
return;
}
static struct list *ospf_get_opaque_funclist(uint8_t lsa_type)
{
struct list *funclist = NULL;
switch (lsa_type) {
case OPAQUE_TYPE_WILDCARD:
/* XXX
* This is an ugly trick to handle type-9/10/11 LSA altogether.
* Yes, "OPAQUE_TYPE_WILDCARD (value 0)" is not an LSA-type, nor
* an officially assigned opaque-type.
* Though it is possible that the value might be officially used
* in the future, we use it internally as a special label, for
* now.
*/
funclist = ospf_opaque_wildcard_funclist;
break;
case OSPF_OPAQUE_LINK_LSA:
funclist = ospf_opaque_type9_funclist;
break;
case OSPF_OPAQUE_AREA_LSA:
funclist = ospf_opaque_type10_funclist;
break;
case OSPF_OPAQUE_AS_LSA:
funclist = ospf_opaque_type11_funclist;
break;
default:
flog_warn(EC_OSPF_LSA_UNEXPECTED,
"ospf_get_opaque_funclist: Unexpected LSA-type(%u)",
lsa_type);
break;
}
return funclist;
}
/* XXX: such a huge argument list can /not/ be healthy... */
int ospf_register_opaque_functab(
uint8_t lsa_type, uint8_t opaque_type,
int (*new_if_hook)(struct interface *ifp),
int (*del_if_hook)(struct interface *ifp),
void (*ism_change_hook)(struct ospf_interface *oi, int old_status),
void (*nsm_change_hook)(struct ospf_neighbor *nbr, int old_status),
void (*config_write_router)(struct vty *vty),
void (*config_write_if)(struct vty *vty, struct interface *ifp),
void (*config_write_debug)(struct vty *vty),
void (*show_opaque_info)(struct vty *vty, struct ospf_lsa *lsa),
int (*lsa_originator)(void *arg),
struct ospf_lsa *(*lsa_refresher)(struct ospf_lsa *lsa),
int (*new_lsa_hook)(struct ospf_lsa *lsa),
int (*del_lsa_hook)(struct ospf_lsa *lsa))
{
struct list *funclist;
struct ospf_opaque_functab *new;
if ((funclist = ospf_get_opaque_funclist(lsa_type)) == NULL)
return -1;
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->opaque_type == opaque_type) {
flog_warn(
EC_OSPF_LSA,
"ospf_register_opaque_functab: Duplicated entry?: lsa_type(%u), opaque_type(%u)",
lsa_type, opaque_type);
return -1;
}
new = XCALLOC(MTYPE_OSPF_OPAQUE_FUNCTAB,
sizeof(struct ospf_opaque_functab));
new->opaque_type = opaque_type;
new->oipt = NULL;
new->new_if_hook = new_if_hook;
new->del_if_hook = del_if_hook;
new->ism_change_hook = ism_change_hook;
new->nsm_change_hook = nsm_change_hook;
new->config_write_router = config_write_router;
new->config_write_if = config_write_if;
new->config_write_debug = config_write_debug;
new->show_opaque_info = show_opaque_info;
new->lsa_originator = lsa_originator;
new->lsa_refresher = lsa_refresher;
new->new_lsa_hook = new_lsa_hook;
new->del_lsa_hook = del_lsa_hook;
listnode_add(funclist, new);
return 0;
}
void ospf_delete_opaque_functab(uint8_t lsa_type, uint8_t opaque_type)
{
struct list *funclist;
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
if ((funclist = ospf_get_opaque_funclist(lsa_type)) != NULL)
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab)) {
if (functab->opaque_type == opaque_type) {
/* Cleanup internal control information, if it
* still remains. */
if (functab->oipt != NULL) {
free_opaque_info_per_type(
functab->oipt);
free_opaque_info_owner(functab->oipt);
}
/* Dequeue listnode entry from the list. */
listnode_delete(funclist, functab);
XFREE(MTYPE_OSPF_OPAQUE_FUNCTAB, functab);
break;
}
}
return;
}
static struct ospf_opaque_functab *
ospf_opaque_functab_lookup(struct ospf_lsa *lsa)
{
struct list *funclist;
struct listnode *node;
struct ospf_opaque_functab *functab;
uint8_t key = GET_OPAQUE_TYPE(ntohl(lsa->data->id.s_addr));
if ((funclist = ospf_get_opaque_funclist(lsa->data->type)) != NULL)
for (ALL_LIST_ELEMENTS_RO(funclist, node, functab))
if (functab->opaque_type == key)
return functab;
return NULL;
}
/*------------------------------------------------------------------------*
* Followings are management functions for self-originated LSA entries.
*------------------------------------------------------------------------*/
/*
* Opaque-LSA control information per opaque-type.
* Single Opaque-Type may have multiple instances; each of them will be
* identified by their opaque-id.
*/
struct opaque_info_per_type {
uint8_t lsa_type;
uint8_t opaque_type;
enum { PROC_NORMAL, PROC_SUSPEND } status;
/*
* Thread for (re-)origination scheduling for this opaque-type.
*
* Initial origination of Opaque-LSAs is controlled by generic
* Opaque-LSA handling module so that same opaque-type entries are
* called all at once when certain conditions are met.
* However, there might be cases that some Opaque-LSA clients need
* to (re-)originate their own Opaque-LSAs out-of-sync with others.
* This thread is prepared for that specific purpose.
*/
struct thread *t_opaque_lsa_self;
/*
* Backpointer to an "owner" which is LSA-type dependent.
* type-9: struct ospf_interface
* type-10: struct ospf_area
* type-11: struct ospf
*/
void *owner;
/* Collection of callback functions for this opaque-type. */
struct ospf_opaque_functab *functab;
/* List of Opaque-LSA control information per opaque-id. */
struct list *id_list;
};
/* Opaque-LSA control information per opaque-id. */
struct opaque_info_per_id {
uint32_t opaque_id;
/* Thread for refresh/flush scheduling for this opaque-type/id. */
struct thread *t_opaque_lsa_self;
/* Backpointer to Opaque-LSA control information per opaque-type. */
struct opaque_info_per_type *opqctl_type;
/* Here comes an actual Opaque-LSA entry for this opaque-type/id. */
struct ospf_lsa *lsa;
};
static struct opaque_info_per_type *
register_opaque_info_per_type(struct ospf_opaque_functab *functab,
struct ospf_lsa *new);
static struct opaque_info_per_type *
lookup_opaque_info_by_type(struct ospf_lsa *lsa);
static struct opaque_info_per_id *
register_opaque_info_per_id(struct opaque_info_per_type *oipt,
struct ospf_lsa *new);
static struct opaque_info_per_id *
lookup_opaque_info_by_id(struct opaque_info_per_type *oipt,
struct ospf_lsa *lsa);
static struct opaque_info_per_id *register_opaque_lsa(struct ospf_lsa *new);
static struct opaque_info_per_type *
register_opaque_info_per_type(struct ospf_opaque_functab *functab,
struct ospf_lsa *new)
{
struct ospf *top;
struct opaque_info_per_type *oipt;
oipt = XCALLOC(MTYPE_OPAQUE_INFO_PER_TYPE,
sizeof(struct opaque_info_per_type));
switch (new->data->type) {
case OSPF_OPAQUE_LINK_LSA:
oipt->owner = new->oi;
listnode_add(new->oi->opaque_lsa_self, oipt);
break;
case OSPF_OPAQUE_AREA_LSA:
oipt->owner = new->area;
listnode_add(new->area->opaque_lsa_self, oipt);
break;
case OSPF_OPAQUE_AS_LSA:
top = ospf_lookup_by_vrf_id(new->vrf_id);
if (new->area != NULL && (top = new->area->ospf) == NULL) {
free_opaque_info_per_type((void *)oipt);
free_opaque_info_owner(oipt);
oipt = NULL;
goto out; /* This case may not exist. */
}
oipt->owner = top;
listnode_add(top->opaque_lsa_self, oipt);
break;
default:
flog_warn(
EC_OSPF_LSA_UNEXPECTED,
"register_opaque_info_per_type: Unexpected LSA-type(%u)",
new->data->type);
free_opaque_info_per_type((void *)oipt);
free_opaque_info_owner(oipt);
oipt = NULL;
goto out; /* This case may not exist. */
}
oipt->lsa_type = new->data->type;
oipt->opaque_type = GET_OPAQUE_TYPE(ntohl(new->data->id.s_addr));
oipt->status = PROC_NORMAL;
oipt->t_opaque_lsa_self = NULL;
oipt->functab = functab;
functab->oipt = oipt;
oipt->id_list = list_new();
oipt->id_list->del = free_opaque_info_per_id;
out:
return oipt;
}
/* Remove "oipt" from its owner's self-originated LSA list. */
static void free_opaque_info_owner(void *val)
{
struct opaque_info_per_type *oipt = (struct opaque_info_per_type *)val;
switch (oipt->lsa_type) {
case OSPF_OPAQUE_LINK_LSA: {
struct ospf_interface *oi =
(struct ospf_interface *)(oipt->owner);
listnode_delete(oi->opaque_lsa_self, oipt);
break;
}
case OSPF_OPAQUE_AREA_LSA: {
struct ospf_area *area = (struct ospf_area *)(oipt->owner);
listnode_delete(area->opaque_lsa_self, oipt);
break;
}
case OSPF_OPAQUE_AS_LSA: {
struct ospf *top = (struct ospf *)(oipt->owner);
listnode_delete(top->opaque_lsa_self, oipt);
break;
}
default:
flog_warn(EC_OSPF_LSA_UNEXPECTED,
"free_opaque_info_owner: Unexpected LSA-type(%u)",
oipt->lsa_type);
break; /* This case may not exist. */
}
}
static void free_opaque_info_per_type(void *val)
{
struct opaque_info_per_type *oipt = (struct opaque_info_per_type *)val;
struct opaque_info_per_id *oipi;
struct ospf_lsa *lsa;
struct listnode *node, *nnode;
/* Control information per opaque-id may still exist. */
for (ALL_LIST_ELEMENTS(oipt->id_list, node, nnode, oipi)) {
if ((lsa = oipi->lsa) == NULL)
continue;
if (IS_LSA_MAXAGE(lsa))
continue;
ospf_opaque_lsa_flush_schedule(lsa);
}
OSPF_TIMER_OFF(oipt->t_opaque_lsa_self);
list_delete(&oipt->id_list);
XFREE(MTYPE_OPAQUE_INFO_PER_TYPE, oipt);
return;
}
static struct opaque_info_per_type *
lookup_opaque_info_by_type(struct ospf_lsa *lsa)
{
struct ospf *top;
struct ospf_area *area;
struct ospf_interface *oi;
struct list *listtop = NULL;
struct listnode *node, *nnode;
struct opaque_info_per_type *oipt = NULL;
uint8_t key = GET_OPAQUE_TYPE(ntohl(lsa->data->id.s_addr));
switch (lsa->data->type) {
case OSPF_OPAQUE_LINK_LSA:
if ((oi = lsa->oi) != NULL)
listtop = oi->opaque_lsa_self;
else
flog_warn(
EC_OSPF_LSA,
"Type-9 Opaque-LSA: Reference to OI is missing?");
break;
case OSPF_OPAQUE_AREA_LSA:
if ((area = lsa->area) != NULL)
listtop = area->opaque_lsa_self;
else
flog_warn(
EC_OSPF_LSA,
"Type-10 Opaque-LSA: Reference to AREA is missing?");
break;
case OSPF_OPAQUE_AS_LSA:
top = ospf_lookup_by_vrf_id(lsa->vrf_id);
if ((area = lsa->area) != NULL && (top = area->ospf) == NULL) {
flog_warn(
EC_OSPF_LSA,
"Type-11 Opaque-LSA: Reference to OSPF is missing?");
break; /* Unlikely to happen. */
}
listtop = top->opaque_lsa_self;
break;
default:
flog_warn(EC_OSPF_LSA_UNEXPECTED,
"lookup_opaque_info_by_type: Unexpected LSA-type(%u)",
lsa->data->type);
break;
}
if (listtop != NULL)
for (ALL_LIST_ELEMENTS(listtop, node, nnode, oipt))
if (oipt->opaque_type == key)
return oipt;
return NULL;
}
static struct opaque_info_per_id *
register_opaque_info_per_id(struct opaque_info_per_type *oipt,
struct ospf_lsa *new)
{
struct opaque_info_per_id *oipi;
oipi = XCALLOC(MTYPE_OPAQUE_INFO_PER_ID,
sizeof(struct opaque_info_per_id));
oipi->opaque_id = GET_OPAQUE_ID(ntohl(new->data->id.s_addr));
oipi->t_opaque_lsa_self = NULL;
oipi->opqctl_type = oipt;
oipi->lsa = ospf_lsa_lock(new);
listnode_add(oipt->id_list, oipi);
return oipi;
}
static void free_opaque_info_per_id(void *val)
{
struct opaque_info_per_id *oipi = (struct opaque_info_per_id *)val;
OSPF_TIMER_OFF(oipi->t_opaque_lsa_self);
if (oipi->lsa != NULL)
ospf_lsa_unlock(&oipi->lsa);
XFREE(MTYPE_OPAQUE_INFO_PER_ID, oipi);
return;
}
static struct opaque_info_per_id *
lookup_opaque_info_by_id(struct opaque_info_per_type *oipt,
struct ospf_lsa *lsa)
{
struct listnode *node, *nnode;
struct opaque_info_per_id *oipi;
uint32_t key = GET_OPAQUE_ID(ntohl(lsa->data->id.s_addr));
for (ALL_LIST_ELEMENTS(oipt->id_list, node, nnode, oipi))
if (oipi->opaque_id == key)
return oipi;
return NULL;
}
static struct opaque_info_per_id *register_opaque_lsa(struct ospf_lsa *new)
{
struct ospf_opaque_functab *functab;
struct opaque_info_per_type *oipt;
struct opaque_info_per_id *oipi = NULL;
if ((functab = ospf_opaque_functab_lookup(new)) == NULL)
goto out;
if ((oipt = lookup_opaque_info_by_type(new)) == NULL
&& (oipt = register_opaque_info_per_type(functab, new)) == NULL)
goto out;
if ((oipi = register_opaque_info_per_id(oipt, new)) == NULL)
goto out;
out:
return oipi;
}
/*------------------------------------------------------------------------*
* Followings are (vty) configuration functions for Opaque-LSAs handling.
*------------------------------------------------------------------------*/
DEFUN (capability_opaque,
capability_opaque_cmd,
"capability opaque",
"Enable specific OSPF feature\n"
"Opaque LSA\n")
{
VTY_DECLVAR_INSTANCE_CONTEXT(ospf, ospf);
/* Turn on the "master switch" of opaque-lsa capability. */
if (!CHECK_FLAG(ospf->config, OSPF_OPAQUE_CAPABLE)) {
if (IS_DEBUG_OSPF_EVENT)
zlog_debug("Opaque capability: OFF -> ON");
SET_FLAG(ospf->config, OSPF_OPAQUE_CAPABLE);
ospf_renegotiate_optional_capabilities(ospf);
}
return CMD_SUCCESS;
}
DEFUN (ospf_opaque,
ospf_opaque_cmd,
"ospf opaque-lsa",
"OSPF specific commands\n"
"Enable the Opaque-LSA capability (rfc2370)\n")
{
return capability_opaque(self, vty, argc, argv);
}
DEFUN (no_capability_opaque,
no_capability_opaque_cmd,
"no capability opaque",
NO_STR
"Enable specific OSPF feature\n"
"Opaque LSA\n")
{
VTY_DECLVAR_INSTANCE_CONTEXT(ospf, ospf);
/* Turn off the "master switch" of opaque-lsa capability. */
if (CHECK_FLAG(ospf->config, OSPF_OPAQUE_CAPABLE)) {
if (IS_DEBUG_OSPF_EVENT)
zlog_debug("Opaque capability: ON -> OFF");
UNSET_FLAG(ospf->config, OSPF_OPAQUE_CAPABLE);
ospf_renegotiate_optional_capabilities(ospf);
}
return CMD_SUCCESS;
}
DEFUN (no_ospf_opaque,
no_ospf_opaque_cmd,
"no ospf opaque-lsa",
NO_STR
"OSPF specific commands\n"
"Enable the Opaque-LSA capability (rfc2370)\n")
{
return no_capability_opaque(self, vty, argc, argv);
}
static void ospf_opaque_register_vty(void)
{
install_element(OSPF_NODE, &capability_opaque_cmd);
install_element(OSPF_NODE, &no_capability_opaque_cmd);
install_element(OSPF_NODE, &ospf_opaque_cmd);
install_element(OSPF_NODE, &no_ospf_opaque_cmd);
return;
}
/*------------------------------------------------------------------------*
* Followings are collection of user-registered function callers.
*------------------------------------------------------------------------*/
static int opaque_lsa_new_if_callback(struct list *funclist,
struct interface *ifp)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
int rc = -1;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->new_if_hook != NULL)
if ((*functab->new_if_hook)(ifp) != 0)
goto out;
rc = 0;
out:
return rc;
}
static int opaque_lsa_del_if_callback(struct list *funclist,
struct interface *ifp)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
int rc = -1;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->del_if_hook != NULL)
if ((*functab->del_if_hook)(ifp) != 0)
goto out;
rc = 0;
out:
return rc;
}
static void opaque_lsa_ism_change_callback(struct list *funclist,
struct ospf_interface *oi,
int old_status)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->ism_change_hook != NULL)
(*functab->ism_change_hook)(oi, old_status);
return;
}
static void opaque_lsa_nsm_change_callback(struct list *funclist,
struct ospf_neighbor *nbr,
int old_status)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->nsm_change_hook != NULL)
(*functab->nsm_change_hook)(nbr, old_status);
return;
}
static void opaque_lsa_config_write_router_callback(struct list *funclist,
struct vty *vty)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->config_write_router != NULL)
(*functab->config_write_router)(vty);
return;
}
static void opaque_lsa_config_write_if_callback(struct list *funclist,
struct vty *vty,
struct interface *ifp)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->config_write_if != NULL)
(*functab->config_write_if)(vty, ifp);
return;
}
static void opaque_lsa_config_write_debug_callback(struct list *funclist,
struct vty *vty)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->config_write_debug != NULL)
(*functab->config_write_debug)(vty);
return;
}
static int opaque_lsa_originate_callback(struct list *funclist,
void *lsa_type_dependent)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
int rc = -1;
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->lsa_originator != NULL)
if ((*functab->lsa_originator)(lsa_type_dependent) != 0)
goto out;
rc = 0;
out:
return rc;
}
static int new_lsa_callback(struct list *funclist, struct ospf_lsa *lsa)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
int rc = -1;
/* This function handles ALL types of LSAs, not only opaque ones. */
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->new_lsa_hook != NULL)
if ((*functab->new_lsa_hook)(lsa) != 0)
goto out;
rc = 0;
out:
return rc;
}
static int del_lsa_callback(struct list *funclist, struct ospf_lsa *lsa)
{
struct listnode *node, *nnode;
struct ospf_opaque_functab *functab;
int rc = -1;
/* This function handles ALL types of LSAs, not only opaque ones. */
for (ALL_LIST_ELEMENTS(funclist, node, nnode, functab))
if (functab->del_lsa_hook != NULL)
if ((*functab->del_lsa_hook)(lsa) != 0)
goto out;
rc = 0;
out:
return rc;
}
/*------------------------------------------------------------------------*
* Followings are glue functions to call Opaque-LSA specific processing.
*------------------------------------------------------------------------*/
int ospf_opaque_new_if(struct interface *ifp)
{
struct list *funclist;
int rc = -1;
funclist = ospf_opaque_wildcard_funclist;
if (opaque_lsa_new_if_callback(funclist, ifp) != 0)
goto out;
funclist = ospf_opaque_type9_funclist;
if (opaque_lsa_new_if_callback(funclist, ifp) != 0)
goto out;
funclist = ospf_opaque_type10_funclist;
if (opaque_lsa_new_if_callback(funclist, ifp) != 0)
goto out;
funclist = ospf_opaque_type11_funclist;
if (opaque_lsa_new_if_callback(funclist, ifp) != 0)