ospf_te.c
上传用户:xiaozhuqw
上传日期:2009-11-15
资源大小:1338k
文件大小:52k
- /*
- * This is an implementation of draft-katz-yeung-ospf-traffic-06.txt
- * 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 GNU Zebra; see the file COPYING. If not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
- /***** MTYPE definition is not reflected to "memory.h" yet. *****/
- #define MTYPE_OSPF_MPLS_TE_LINKPARAMS 0
- #include <zebra.h>
- #ifdef HAVE_OSPF_TE
- #ifndef HAVE_OPAQUE_LSA
- #error "Wrong configure option"
- #endif /* HAVE_OPAQUE_LSA */
- #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"
- /* Following structure are internal use only. */
- struct ospf_mpls_te
- {
- enum { disabled, enabled } status;
- /* List elements are zebra-interfaces (ifp), not ospf-interfaces (oi). */
- list iflist;
- /* Store Router-TLV in network byte order. */
- struct te_tlv_router_addr router_addr;
- };
- struct mpls_te_link
- {
- /*
- * According to MPLS-TE (draft) specification, 24-bit Opaque-ID field
- * is subdivided into 8-bit "unused" field and 16-bit "instance" field.
- * In this implementation, each Link-TLV has its own instance.
- */
- u_int32_t instance;
- /* Reference pointer to a Zebra-interface. */
- struct interface *ifp;
- /* Area info in which this MPLS-TE link belongs to. */
- struct ospf_area *area;
- /* Flags to manage this link parameters. */
- u_int32_t flags;
- #define LPFLG_LOOKUP_DONE 0x1
- #define LPFLG_LSA_ENGAGED 0x2
- #define LPFLG_LSA_FORCED_REFRESH 0x4
- /* Store Link-TLV in network byte order. */
- struct te_tlv_link link_header;
- struct te_link_subtlv_link_type link_type;
- struct te_link_subtlv_link_id link_id;
- struct te_link_subtlv_lclif_ipaddr *lclif_ipaddr;
- struct te_link_subtlv_rmtif_ipaddr *rmtif_ipaddr;
- struct te_link_subtlv_te_metric te_metric;
- struct te_link_subtlv_max_bw max_bw;
- struct te_link_subtlv_max_rsv_bw max_rsv_bw;
- struct te_link_subtlv_unrsv_bw unrsv_bw;
- struct te_link_subtlv_rsc_clsclr rsc_clsclr;
- };
- /*
- * Global variable to manage Opaque-LSA/MPLS-TE on this node.
- * Note that all parameter values are stored in network byte order.
- */
- static struct ospf_mpls_te OspfMplsTE;
- enum oifstate {
- OI_ANY, OI_DOWN, OI_UP
- };
- enum sched_opcode {
- REORIGINATE_PER_AREA, REFRESH_THIS_LSA, FLUSH_THIS_LSA
- };
- /*------------------------------------------------------------------------*
- * Followings are initialize/terminate functions for MPLS-TE handling.
- *------------------------------------------------------------------------*/
- static int ospf_mpls_te_new_if (struct interface *ifp);
- static int ospf_mpls_te_del_if (struct interface *ifp);
- static void ospf_mpls_te_ism_change (struct ospf_interface *oi, int old_status);
- static void ospf_mpls_te_nsm_change (struct ospf_neighbor *nbr, int old_status);
- static void ospf_mpls_te_config_write_router (struct vty *vty);
- static void ospf_mpls_te_config_write_if (struct vty *vty, struct interface *ifp);
- static void ospf_mpls_te_show_info (struct vty *vty, struct ospf_lsa *lsa);
- static int ospf_mpls_te_lsa_originate (void *arg);
- static void ospf_mpls_te_lsa_refresh (struct ospf_lsa *lsa);
- static void ospf_mpls_te_lsa_schedule (struct mpls_te_link *lp, enum sched_opcode);
- static void del_mpls_te_link (void *val);
- static void ospf_mpls_te_register_vty (void);
- int
- ospf_mpls_te_init (void)
- {
- int rc;
- rc = ospf_register_opaque_functab (
- OSPF_OPAQUE_AREA_LSA,
- OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA,
- ospf_mpls_te_new_if,
- ospf_mpls_te_del_if,
- ospf_mpls_te_ism_change,
- ospf_mpls_te_nsm_change,
- ospf_mpls_te_config_write_router,
- ospf_mpls_te_config_write_if,
- NULL,/* ospf_mpls_te_config_write_debug */
- ospf_mpls_te_show_info,
- ospf_mpls_te_lsa_originate,
- ospf_mpls_te_lsa_refresh,
- NULL,/* ospf_mpls_te_new_lsa_hook */
- NULL /* ospf_mpls_te_del_lsa_hook */);
- if (rc != 0)
- {
- zlog_warn ("ospf_mpls_te_init: Failed to register functions");
- goto out;
- }
- memset (&OspfMplsTE, 0, sizeof (struct ospf_mpls_te));
- OspfMplsTE.status = disabled;
- OspfMplsTE.iflist = list_new ();
- OspfMplsTE.iflist->del = del_mpls_te_link;
- ospf_mpls_te_register_vty ();
- out:
- return rc;
- }
- void
- ospf_mpls_te_term (void)
- {
- list_delete (OspfMplsTE.iflist);
- OspfMplsTE.iflist = NULL;
- OspfMplsTE.status = disabled;
- ospf_delete_opaque_functab (OSPF_OPAQUE_AREA_LSA,
- OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA);
- return;
- }
- /*------------------------------------------------------------------------*
- * Followings are control functions for MPLS-TE parameters management.
- *------------------------------------------------------------------------*/
- static void
- del_mpls_te_link (void *val)
- {
- XFREE (MTYPE_OSPF_MPLS_TE_LINKPARAMS, val);
- return;
- }
- static u_int32_t
- get_mpls_te_instance_value ()
- {
- static u_int32_t seqno = 0;
- if (LEGAL_TE_INSTANCE_RANGE (seqno + 1))
- seqno += 1;
- else
- seqno = 1; /* Avoid zero. */
- return seqno;
- }
- static struct ospf_interface *
- lookup_oi_by_ifp (struct interface *ifp,
- struct ospf_area *area, enum oifstate oifstate)
- {
- struct ospf_interface *oi = NULL;
- struct route_node *rn;
- for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn))
- {
- if ((oi = rn->info) == NULL)
- continue;
- switch (oifstate)
- {
- case OI_ANY:
- break;
- case OI_DOWN:
- if (ospf_if_is_enable (oi))
- continue;
- break;
- case OI_UP:
- if (! ospf_if_is_enable (oi))
- continue;
- break;
- default:
- zlog_warn ("lookup_oi_by_ifp: Unknown oifstate: %x", oifstate);
- goto out;
- }
- if (area == NULL || oi->area == area)
- return oi;
- }
- out:
- return NULL;
- }
- static struct mpls_te_link *
- lookup_linkparams_by_ifp (struct interface *ifp)
- {
- listnode node;
- struct mpls_te_link *lp;
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- if ((lp = getdata (node)) != NULL)
- if (lp->ifp == ifp)
- return lp;
- return NULL;
- }
- static struct mpls_te_link *
- lookup_linkparams_by_instance (struct ospf_lsa *lsa)
- {
- listnode node;
- struct mpls_te_link *lp;
- int key = GET_OPAQUE_ID (ntohl (lsa->data->id.s_addr));
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- if ((lp = getdata (node)) != NULL)
- if (lp->instance == key)
- return lp;
- zlog_warn ("lookup_linkparams_by_instance: Entry not found: key(%x)", key);
- return NULL;
- }
- static void
- ospf_mpls_te_foreach_area (
- void (*func)(struct mpls_te_link *lp, enum sched_opcode),
- enum sched_opcode sched_opcode)
- {
- listnode node, node2;
- struct mpls_te_link *lp;
- struct ospf_area *area;
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- {
- if ((lp = getdata (node)) == NULL)
- continue;
- if ((area = lp->area) == NULL)
- continue;
- if (lp->flags & LPFLG_LOOKUP_DONE)
- continue;
- if (func != NULL)
- (* func)(lp, sched_opcode);
- for (node2 = nextnode (node); node2; nextnode (node2))
- if ((lp = getdata (node2)) != NULL)
- if (lp->area != NULL)
- if (IPV4_ADDR_SAME (&lp->area->area_id, &area->area_id))
- lp->flags |= LPFLG_LOOKUP_DONE;
- }
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- if ((lp = getdata (node)) != NULL)
- if (lp->area != NULL)
- lp->flags &= ~LPFLG_LOOKUP_DONE;
- return;
- }
- static void
- set_mpls_te_router_addr (struct in_addr ipv4)
- {
- OspfMplsTE.router_addr.header.type = htons (TE_TLV_ROUTER_ADDR);
- OspfMplsTE.router_addr.header.length = htons (sizeof (ipv4));
- OspfMplsTE.router_addr.value = ipv4;
- return;
- }
- static void
- set_linkparams_link_header (struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh;
- u_int16_t length = 0;
- /* TE_LINK_SUBTLV_LINK_TYPE */
- if (ntohs (lp->link_type.header.type) != 0)
- length += TLV_SIZE (&lp->link_type.header);
- /* TE_LINK_SUBTLV_LINK_ID */
- if (ntohs (lp->link_id.header.type) != 0)
- length += TLV_SIZE (&lp->link_id.header);
- /* TE_LINK_SUBTLV_LCLIF_IPADDR */
- if ((tlvh = (struct te_tlv_header *) lp->lclif_ipaddr) != NULL
- && ntohs (tlvh->type) != 0)
- length += TLV_SIZE (tlvh);
- /* TE_LINK_SUBTLV_RMTIF_IPADDR */
- if ((tlvh = (struct te_tlv_header *) lp->rmtif_ipaddr) != NULL
- && ntohs (tlvh->type) != 0)
- length += TLV_SIZE (tlvh);
- /* TE_LINK_SUBTLV_TE_METRIC */
- if (ntohs (lp->te_metric.header.type) != 0)
- length += TLV_SIZE (&lp->te_metric.header);
- /* TE_LINK_SUBTLV_MAX_BW */
- if (ntohs (lp->max_bw.header.type) != 0)
- length += TLV_SIZE (&lp->max_bw.header);
- /* TE_LINK_SUBTLV_MAX_RSV_BW */
- if (ntohs (lp->max_rsv_bw.header.type) != 0)
- length += TLV_SIZE (&lp->max_rsv_bw.header);
- /* TE_LINK_SUBTLV_UNRSV_BW */
- if (ntohs (lp->unrsv_bw.header.type) != 0)
- length += TLV_SIZE (&lp->unrsv_bw.header);
- /* TE_LINK_SUBTLV_RSC_CLSCLR */
- if (ntohs (lp->rsc_clsclr.header.type) != 0)
- length += TLV_SIZE (&lp->rsc_clsclr.header);
- lp->link_header.header.type = htons (TE_TLV_LINK);
- lp->link_header.header.length = htons (length);
- return;
- }
- static void
- set_linkparams_link_type (struct ospf_interface *oi, struct mpls_te_link *lp)
- {
- lp->link_type.header.type = htons (TE_LINK_SUBTLV_LINK_TYPE);
- lp->link_type.header.length = htons (sizeof (lp->link_type.link_type.value));
- switch (oi->type)
- {
- case OSPF_IFTYPE_POINTOPOINT:
- lp->link_type.link_type.value = LINK_TYPE_SUBTLV_VALUE_PTP;
- break;
- case OSPF_IFTYPE_BROADCAST:
- case OSPF_IFTYPE_NBMA:
- lp->link_type.link_type.value = LINK_TYPE_SUBTLV_VALUE_MA;
- break;
- default:
- /* Not supported yet. *//* XXX */
- lp->link_type.header.type = htons (0);
- break;
- }
- return;
- }
- static void
- set_linkparams_link_id (struct ospf_interface *oi, struct mpls_te_link *lp)
- {
- struct ospf_neighbor *nbr;
- int done = 0;
- lp->link_id.header.type = htons (TE_LINK_SUBTLV_LINK_ID);
- lp->link_id.header.length = htons (sizeof (lp->link_id.value));
- /*
- * The Link ID is identical to the contents of the Link ID field
- * in the Router LSA for these link types.
- */
- switch (oi->type)
- {
- case OSPF_IFTYPE_POINTOPOINT:
- /* Take the router ID of the neighbor. */
- if ((nbr = ospf_nbr_lookup_ptop (oi))
- && nbr->state == NSM_Full)
- {
- lp->link_id.value = nbr->router_id;
- done = 1;
- }
- break;
- case OSPF_IFTYPE_BROADCAST:
- case OSPF_IFTYPE_NBMA:
- /* Take the interface address of the designated router. */
- if ((nbr = ospf_nbr_lookup_by_addr (oi->nbrs, &DR (oi))) == NULL)
- break;
- if (nbr->state == NSM_Full
- || (IPV4_ADDR_SAME (&oi->address->u.prefix4, &DR (oi))
- && ospf_nbr_count (oi, NSM_Full) > 0))
- {
- lp->link_id.value = DR (oi);
- done = 1;
- }
- break;
- default:
- /* Not supported yet. *//* XXX */
- lp->link_id.header.type = htons (0);
- break;
- }
- if (! done)
- {
- struct in_addr mask;
- masklen2ip (oi->address->prefixlen, &mask);
- lp->link_id.value.s_addr = oi->address->u.prefix4.s_addr & mask.s_addr;
- }
- return;
- }
- static void
- set_linkparams_te_metric (struct mpls_te_link *lp, u_int32_t te_metric)
- {
- lp->te_metric.header.type = htons (TE_LINK_SUBTLV_TE_METRIC);
- lp->te_metric.header.length = htons (sizeof (lp->te_metric.value));
- lp->te_metric.value = htonl (te_metric);
- return;
- }
- static void
- set_linkparams_max_bw (struct mpls_te_link *lp, float *fp)
- {
- lp->max_bw.header.type = htons (TE_LINK_SUBTLV_MAX_BW);
- lp->max_bw.header.length = htons (sizeof (lp->max_bw.value));
- htonf (fp, &lp->max_bw.value);
- return;
- }
- static void
- set_linkparams_max_rsv_bw (struct mpls_te_link *lp, float *fp)
- {
- lp->max_rsv_bw.header.type = htons (TE_LINK_SUBTLV_MAX_RSV_BW);
- lp->max_rsv_bw.header.length = htons (sizeof (lp->max_rsv_bw.value));
- htonf (fp, &lp->max_rsv_bw.value);
- return;
- }
- static void
- set_linkparams_unrsv_bw (struct mpls_te_link *lp, int priority, float *fp)
- {
- /* Note that TLV-length field is the size of array. */
- lp->unrsv_bw.header.type = htons (TE_LINK_SUBTLV_UNRSV_BW);
- lp->unrsv_bw.header.length = htons (sizeof (lp->unrsv_bw.value));
- htonf (fp, &lp->unrsv_bw.value [priority]);
- return;
- }
- static void
- set_linkparams_rsc_clsclr (struct mpls_te_link *lp, u_int32_t classcolor)
- {
- lp->rsc_clsclr.header.type = htons (TE_LINK_SUBTLV_RSC_CLSCLR);
- lp->rsc_clsclr.header.length = htons (sizeof (lp->rsc_clsclr.value));
- lp->rsc_clsclr.value = htonl (classcolor);
- return;
- }
- static void
- initialize_linkparams (struct mpls_te_link *lp)
- {
- struct interface *ifp = lp->ifp;
- struct ospf_interface *oi;
- float fval;
- int i;
- if ((oi = lookup_oi_by_ifp (ifp, NULL, OI_ANY)) == NULL)
- return;
- /*
- * Try to set initial values those can be derived from
- * zebra-interface information.
- */
- set_linkparams_link_type (oi, lp);
- /*
- * Linux and *BSD kernel holds bandwidth parameter as an "int" type.
- * We may have to reconsider, if "ifp->bandwidth" type changes to float.
- */
- fval = (float)((ifp->bandwidth ? ifp->bandwidth
- : OSPF_DEFAULT_BANDWIDTH) * 1000 / 8);
- set_linkparams_max_bw (lp, &fval);
- set_linkparams_max_rsv_bw (lp, &fval);
- for (i = 0; i < 8; i++)
- set_linkparams_unrsv_bw (lp, i, &fval);
- return;
- }
- static int
- is_mandated_params_set (struct mpls_te_link *lp)
- {
- int rc = 0;
- if (ntohs (OspfMplsTE.router_addr.header.type) == 0)
- goto out;
- if (ntohs (lp->link_type.header.type) == 0)
- goto out;
- if (ntohs (lp->link_id.header.type) == 0)
- goto out;
- rc = 1;
- out:
- return rc;
- }
- /*------------------------------------------------------------------------*
- * Followings are callback functions against generic Opaque-LSAs handling.
- *------------------------------------------------------------------------*/
- static int
- ospf_mpls_te_new_if (struct interface *ifp)
- {
- struct mpls_te_link *new;
- int rc = -1;
- if (lookup_linkparams_by_ifp (ifp) != NULL)
- {
- zlog_warn ("ospf_mpls_te_new_if: ifp(%p) already in use?", ifp);
- rc = 0; /* Do nothing here. */
- goto out;
- }
- if ((new = XMALLOC (MTYPE_OSPF_MPLS_TE_LINKPARAMS,
- sizeof (struct mpls_te_link))) == NULL)
- {
- zlog_warn ("ospf_mpls_te_new_if: XMALLOC: %s", strerror (errno));
- goto out;
- }
- memset (new, 0, sizeof (struct mpls_te_link));
- new->area = NULL;
- new->flags = 0;
- new->instance = get_mpls_te_instance_value ();
- new->ifp = ifp;
- initialize_linkparams (new);
- listnode_add (OspfMplsTE.iflist, new);
- /* Schedule Opaque-LSA refresh. *//* XXX */
- rc = 0;
- out:
- return rc;
- }
- static int
- ospf_mpls_te_del_if (struct interface *ifp)
- {
- struct mpls_te_link *lp;
- int rc = -1;
- if ((lp = lookup_linkparams_by_ifp (ifp)) != NULL)
- {
- list iflist = OspfMplsTE.iflist;
- /* Dequeue listnode entry from the list. */
- listnode_delete (iflist, lp);
- /* Avoid misjudgement in the next lookup. */
- if (listcount (iflist) == 0)
- iflist->head = iflist->tail = NULL;
- XFREE (MTYPE_OSPF_MPLS_TE_LINKPARAMS, lp);
- }
- /* Schedule Opaque-LSA refresh. *//* XXX */
- rc = 0;
- /*out:*/
- return rc;
- }
- static void
- ospf_mpls_te_ism_change (struct ospf_interface *oi, int old_state)
- {
- struct te_link_subtlv_link_type old_type;
- struct te_link_subtlv_link_id old_id;
- struct mpls_te_link *lp;
- if ((lp = lookup_linkparams_by_ifp (oi->ifp)) == NULL)
- {
- zlog_warn ("ospf_mpls_te_ism_change: Cannot get linkparams from OI(%s)?", IF_NAME (oi));
- goto out;
- }
- if (oi->area == NULL || oi->area->ospf == NULL)
- {
- zlog_warn ("ospf_mpls_te_ism_change: Cannot refer to OSPF from OI(%s)?",
- IF_NAME (oi));
- goto out;
- }
- #ifdef notyet
- if ((lp->area != NULL
- && ! IPV4_ADDR_SAME (&lp->area->area_id, &oi->area->area_id))
- || (lp->area != NULL && oi->area == NULL))
- {
- /* How should we consider this case? */
- zlog_warn ("MPLS-TE: Area for OI(%s) has changed to [%s], flush previous LSAs", IF_NAME (oi), oi->area ? inet_ntoa (oi->area->area_id) : "N/A");
- ospf_mpls_te_lsa_schedule (lp, FLUSH_THIS_LSA);
- }
- #endif
- /* Keep Area information in conbination with linkparams. */
- lp->area = oi->area;
- switch (oi->state)
- {
- case ISM_PointToPoint:
- case ISM_DROther:
- case ISM_Backup:
- case ISM_DR:
- old_type = lp->link_type;
- old_id = lp->link_id;
- set_linkparams_link_type (oi, lp);
- set_linkparams_link_id (oi, lp);
- if ((ntohs (old_type.header.type) != ntohs (lp->link_type.header.type)
- || old_type.link_type.value != lp->link_type.link_type.value)
- || (ntohs (old_id.header.type) != ntohs (lp->link_id.header.type)
- || ntohl (old_id.value.s_addr) != ntohl (lp->link_id.value.s_addr)))
- {
- if (lp->flags & LPFLG_LSA_ENGAGED)
- ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA);
- else
- ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA);
- }
- break;
- default:
- lp->link_type.header.type = htons (0);
- lp->link_id.header.type = htons (0);
- if (lp->flags & LPFLG_LSA_ENGAGED)
- ospf_mpls_te_lsa_schedule (lp, FLUSH_THIS_LSA);
- break;
- }
- out:
- return;
- }
- static void
- ospf_mpls_te_nsm_change (struct ospf_neighbor *nbr, int old_state)
- {
- /* So far, nothing to do here. */
- return;
- }
- /*------------------------------------------------------------------------*
- * Followings are OSPF protocol processing functions for MPLS-TE.
- *------------------------------------------------------------------------*/
- static void
- build_tlv_header (struct stream *s, struct te_tlv_header *tlvh)
- {
- stream_put (s, tlvh, sizeof (struct te_tlv_header));
- return;
- }
- static void
- build_router_tlv (struct stream *s)
- {
- struct te_tlv_header *tlvh = &OspfMplsTE.router_addr.header;
- if (ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_link_type (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = &lp->link_type.header;
- if (ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_link_id (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = &lp->link_id.header;
- if (ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_lclif_ipaddr (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = (struct te_tlv_header *) lp->lclif_ipaddr;
- if (tlvh != NULL && ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_rmtif_ipaddr (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = (struct te_tlv_header *) lp->rmtif_ipaddr;
- if (tlvh != NULL && ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_te_metric (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = &lp->te_metric.header;
- if (ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_max_bw (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = &lp->max_bw.header;
- if (ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_max_rsv_bw (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = &lp->max_rsv_bw.header;
- if (ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_unrsv_bw (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = &lp->unrsv_bw.header;
- if (ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_subtlv_rsc_clsclr (struct stream *s, struct mpls_te_link *lp)
- {
- struct te_tlv_header *tlvh = &lp->rsc_clsclr.header;
- if (ntohs (tlvh->type) != 0)
- {
- build_tlv_header (s, tlvh);
- stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh));
- }
- return;
- }
- static void
- build_link_tlv (struct stream *s, struct mpls_te_link *lp)
- {
- set_linkparams_link_header (lp);
- build_tlv_header (s, &lp->link_header.header);
- build_link_subtlv_link_type (s, lp);
- build_link_subtlv_link_id (s, lp);
- build_link_subtlv_lclif_ipaddr (s, lp);
- build_link_subtlv_rmtif_ipaddr (s, lp);
- build_link_subtlv_te_metric (s, lp);
- build_link_subtlv_max_bw (s, lp);
- build_link_subtlv_max_rsv_bw (s, lp);
- build_link_subtlv_unrsv_bw (s, lp);
- build_link_subtlv_rsc_clsclr (s, lp);
- return;
- }
- static void
- ospf_mpls_te_lsa_body_set (struct stream *s, struct mpls_te_link *lp)
- {
- /*
- * The router address TLV is type 1, and ...
- * It must appear in exactly one
- * Traffic Engineering LSA originated by a router.
- */
- build_router_tlv (s);
- /*
- * Only one Link TLV shall be carried in each LSA, allowing for fine
- * granularity changes in topology.
- */
- build_link_tlv (s, lp);
- return;
- }
- /* Create new opaque-LSA. */
- static struct ospf_lsa *
- ospf_mpls_te_lsa_new (struct ospf_area *area, struct mpls_te_link *lp)
- {
- struct stream *s;
- struct lsa_header *lsah;
- struct ospf_lsa *new = NULL;
- u_char options, lsa_type;
- struct in_addr lsa_id;
- u_int32_t tmp;
- u_int16_t length;
- /* Create a stream for LSA. */
- if ((s = stream_new (OSPF_MAX_LSA_SIZE)) == NULL)
- {
- zlog_warn ("ospf_mpls_te_lsa_new: stream_new() ?");
- goto out;
- }
- lsah = (struct lsa_header *) STREAM_DATA (s);
- options = LSA_OPTIONS_GET (area);
- #ifdef HAVE_NSSA
- options |= LSA_NSSA_GET (area);
- #endif /* HAVE_NSSA */
- options |= OSPF_OPTION_O; /* Don't forget this :-) */
- lsa_type = OSPF_OPAQUE_AREA_LSA;
- tmp = SET_OPAQUE_LSID (OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA, lp->instance);
- lsa_id.s_addr = htonl (tmp);
- if (IS_DEBUG_OSPF (lsa, LSA_GENERATE))
- zlog_info ("LSA[Type%d:%s]: Create an Opaque-LSA/MPLS-TE instance", lsa_type, inet_ntoa (lsa_id));
- /* Set opaque-LSA header fields. */
- lsa_header_set (s, options, lsa_type, lsa_id, area->ospf->router_id);
- /* Set opaque-LSA body fields. */
- ospf_mpls_te_lsa_body_set (s, lp);
- /* Set length. */
- length = stream_get_endp (s);
- lsah->length = htons (length);
- /* Now, create an OSPF LSA instance. */
- if ((new = ospf_lsa_new ()) == NULL)
- {
- zlog_warn ("ospf_mpls_te_lsa_new: ospf_lsa_new() ?");
- stream_free (s);
- goto out;
- }
- if ((new->data = ospf_lsa_data_new (length)) == NULL)
- {
- zlog_warn ("ospf_mpls_te_lsa_new: ospf_lsa_data_new() ?");
- ospf_lsa_free (new);
- new = NULL;
- stream_free (s);
- goto out;
- }
- new->area = area;
- SET_FLAG (new->flags, OSPF_LSA_SELF);
- memcpy (new->data, lsah, length);
- stream_free (s);
- out:
- return new;
- }
- static int
- ospf_mpls_te_lsa_originate1 (struct ospf_area *area, struct mpls_te_link *lp)
- {
- struct ospf_lsa *new;
- int rc = -1;
- /* Create new Opaque-LSA/MPLS-TE instance. */
- if ((new = ospf_mpls_te_lsa_new (area, lp)) == NULL)
- {
- zlog_warn ("ospf_mpls_te_lsa_originate1: ospf_mpls_te_lsa_new() ?");
- goto out;
- }
- /* Install this LSA into LSDB. */
- if (ospf_lsa_install (area->ospf, NULL/*oi*/, new) == NULL)
- {
- zlog_warn ("ospf_mpls_te_lsa_originate1: ospf_lsa_install() ?");
- ospf_lsa_free (new);
- goto out;
- }
- /* Now this linkparameter entry has associated LSA. */
- lp->flags |= LPFLG_LSA_ENGAGED;
- /* Update new LSA origination count. */
- area->ospf->lsa_originate_count++;
- /* Flood new LSA through area. */
- ospf_flood_through_area (area, NULL/*nbr*/, new);
- if (IS_DEBUG_OSPF (lsa, LSA_GENERATE))
- {
- char area_id[INET_ADDRSTRLEN];
- strcpy (area_id, inet_ntoa (area->area_id));
- zlog_info ("LSA[Type%d:%s]: Originate Opaque-LSA/MPLS-TE: Area(%s), Link(%s)", new->data->type, inet_ntoa (new->data->id), area_id, lp->ifp->name);
- ospf_lsa_header_dump (new->data);
- }
- rc = 0;
- out:
- return rc;
- }
- static int
- ospf_mpls_te_lsa_originate (void *arg)
- {
- struct ospf_area *area = (struct ospf_area *) arg;
- listnode node;
- struct mpls_te_link *lp;
- int rc = -1;
- if (OspfMplsTE.status == disabled)
- {
- zlog_info ("ospf_mpls_te_lsa_originate: MPLS-TE is disabled now.");
- rc = 0; /* This is not an error case. */
- goto out;
- }
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- {
- if ((lp = getdata (node)) == NULL)
- continue;
- if (lp->area == NULL)
- continue;
- if (! IPV4_ADDR_SAME (&lp->area->area_id, &area->area_id))
- continue;
- if (lp->flags & LPFLG_LSA_ENGAGED)
- {
- if (lp->flags & LPFLG_LSA_FORCED_REFRESH)
- {
- lp->flags &= ~LPFLG_LSA_FORCED_REFRESH;
- ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA);
- }
- continue;
- }
- if (! is_mandated_params_set (lp))
- {
- zlog_warn ("ospf_mpls_te_lsa_originate: Link(%s) lacks some mandated MPLS-TE parameters.", lp->ifp ? lp->ifp->name : "?");
- continue;
- }
- /* Ok, let's try to originate an LSA for this area and Link. */
- if (ospf_mpls_te_lsa_originate1 (area, lp) != 0)
- goto out;
- }
- rc = 0;
- out:
- return rc;
- }
- static void
- ospf_mpls_te_lsa_refresh (struct ospf_lsa *lsa)
- {
- struct mpls_te_link *lp;
- struct ospf_area *area = lsa->area;
- struct ospf_lsa *new = NULL;
- if (OspfMplsTE.status == disabled)
- {
- /*
- * This LSA must have flushed before due to MPLS-TE status change.
- * It seems a slip among routers in the routing domain.
- */
- zlog_info ("ospf_mpls_te_lsa_refresh: MPLS-TE is disabled now.");
- lsa->data->ls_age = htons (OSPF_LSA_MAXAGE); /* Flush it anyway. */
- }
- /* At first, resolve lsa/lp relationship. */
- if ((lp = lookup_linkparams_by_instance (lsa)) == NULL)
- {
- zlog_warn ("ospf_mpls_te_lsa_refresh: Invalid parameter?");
- lsa->data->ls_age = htons (OSPF_LSA_MAXAGE); /* Flush it anyway. */
- }
- /* If the lsa's age reached to MaxAge, start flushing procedure. */
- if (IS_LSA_MAXAGE (lsa))
- {
- lp->flags &= ~LPFLG_LSA_ENGAGED;
- ospf_opaque_lsa_flush_schedule (lsa);
- goto out;
- }
- /* Create new Opaque-LSA/MPLS-TE instance. */
- if ((new = ospf_mpls_te_lsa_new (area, lp)) == NULL)
- {
- zlog_warn ("ospf_mpls_te_lsa_refresh: ospf_mpls_te_lsa_new() ?");
- goto out;
- }
- new->data->ls_seqnum = lsa_seqnum_increment (lsa);
- /* Install this LSA into LSDB. */
- /* Given "lsa" will be freed in the next function. */
- if (ospf_lsa_install (area->ospf, NULL/*oi*/, new) == NULL)
- {
- zlog_warn ("ospf_mpls_te_lsa_refresh: ospf_lsa_install() ?");
- ospf_lsa_free (new);
- goto out;
- }
- /* Flood updated LSA through area. */
- ospf_flood_through_area (area, NULL/*nbr*/, new);
- /* Debug logging. */
- if (IS_DEBUG_OSPF (lsa, LSA_GENERATE))
- {
- zlog_info ("LSA[Type%d:%s]: Refresh Opaque-LSA/MPLS-TE",
- new->data->type, inet_ntoa (new->data->id));
- ospf_lsa_header_dump (new->data);
- }
- out:
- return;
- }
- static void
- ospf_mpls_te_lsa_schedule (struct mpls_te_link *lp,
- enum sched_opcode opcode)
- {
- struct ospf_lsa lsa;
- struct lsa_header lsah;
- u_int32_t tmp;
- memset (&lsa, 0, sizeof (lsa));
- memset (&lsah, 0, sizeof (lsah));
- lsa.area = lp->area;
- lsa.data = &lsah;
- lsah.type = OSPF_OPAQUE_AREA_LSA;
- tmp = SET_OPAQUE_LSID (OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA, lp->instance);
- lsah.id.s_addr = htonl (tmp);
- switch (opcode)
- {
- case REORIGINATE_PER_AREA:
- ospf_opaque_lsa_reoriginate_schedule ((void *) lp->area,
- OSPF_OPAQUE_AREA_LSA, OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA);
- break;
- case REFRESH_THIS_LSA:
- ospf_opaque_lsa_refresh_schedule (&lsa);
- break;
- case FLUSH_THIS_LSA:
- lp->flags &= ~LPFLG_LSA_ENGAGED;
- ospf_opaque_lsa_flush_schedule (&lsa);
- break;
- default:
- zlog_warn ("ospf_mpls_te_lsa_schedule: Unknown opcode (%u)", opcode);
- break;
- }
- return;
- }
- /*------------------------------------------------------------------------*
- * Followings are vty session control functions.
- *------------------------------------------------------------------------*/
- static u_int16_t
- show_vty_router_addr (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_tlv_router_addr *top = (struct te_tlv_router_addr *) tlvh;
- if (vty != NULL)
- vty_out (vty, " Router-Address: %s%s", inet_ntoa (top->value), VTY_NEWLINE);
- else
- zlog_info (" Router-Address: %s", inet_ntoa (top->value));
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_header (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_tlv_link *top = (struct te_tlv_link *) tlvh;
- if (vty != NULL)
- vty_out (vty, " Link: %u octets of data%s", ntohs (top->header.length), VTY_NEWLINE);
- else
- zlog_info (" Link: %u octets of data", ntohs (top->header.length));
- return TLV_HDR_SIZE; /* Here is special, not "TLV_SIZE". */
- }
- static u_int16_t
- show_vty_link_subtlv_link_type (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_link_type *top;
- const char *cp = "Unknown";
- top = (struct te_link_subtlv_link_type *) tlvh;
- switch (top->link_type.value)
- {
- case LINK_TYPE_SUBTLV_VALUE_PTP:
- cp = "Point-to-point";
- break;
- case LINK_TYPE_SUBTLV_VALUE_MA:
- cp = "Multiaccess";
- break;
- default:
- break;
- }
- if (vty != NULL)
- vty_out (vty, " Link-Type: %s (%u)%s", cp, top->link_type.value, VTY_NEWLINE);
- else
- zlog_info (" Link-Type: %s (%u)", cp, top->link_type.value);
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_subtlv_link_id (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_link_id *top;
- top = (struct te_link_subtlv_link_id *) tlvh;
- if (vty != NULL)
- vty_out (vty, " Link-ID: %s%s", inet_ntoa (top->value), VTY_NEWLINE);
- else
- zlog_info (" Link-ID: %s", inet_ntoa (top->value));
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_subtlv_lclif_ipaddr (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_lclif_ipaddr *top;
- int i, n;
- top = (struct te_link_subtlv_lclif_ipaddr *) tlvh;
- n = ntohs (tlvh->length) / sizeof (top->value[0]);
- if (vty != NULL)
- vty_out (vty, " Local Interface IP Address(es): %d%s", n, VTY_NEWLINE);
- else
- zlog_info (" Local Interface IP Address(es): %d", n);
- for (i = 0; i < n; i++)
- {
- if (vty != NULL)
- vty_out (vty, " #%d: %s%s", i, inet_ntoa (top->value[i]), VTY_NEWLINE);
- else
- zlog_info (" #%d: %s", i, inet_ntoa (top->value[i]));
- }
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_subtlv_rmtif_ipaddr (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_rmtif_ipaddr *top;
- int i, n;
- top = (struct te_link_subtlv_rmtif_ipaddr *) tlvh;
- n = ntohs (tlvh->length) / sizeof (top->value[0]);
- if (vty != NULL)
- vty_out (vty, " Remote Interface IP Address(es): %d%s", n, VTY_NEWLINE);
- else
- zlog_info (" Remote Interface IP Address(es): %d", n);
- for (i = 0; i < n; i++)
- {
- if (vty != NULL)
- vty_out (vty, " #%d: %s%s", i, inet_ntoa (top->value[i]), VTY_NEWLINE);
- else
- zlog_info (" #%d: %s", i, inet_ntoa (top->value[i]));
- }
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_subtlv_te_metric (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_te_metric *top;
- top = (struct te_link_subtlv_te_metric *) tlvh;
- if (vty != NULL)
- vty_out (vty, " Traffic Engineering Metric: %u%s", (u_int32_t) ntohl (top->value), VTY_NEWLINE);
- else
- zlog_info (" Traffic Engineering Metric: %u", (u_int32_t) ntohl (top->value));
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_subtlv_max_bw (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_max_bw *top;
- float fval;
- top = (struct te_link_subtlv_max_bw *) tlvh;
- ntohf (&top->value, &fval);
- if (vty != NULL)
- vty_out (vty, " Maximum Bandwidth: %g (Bytes/sec)%s", fval, VTY_NEWLINE);
- else
- zlog_info (" Maximum Bandwidth: %g (Bytes/sec)", fval);
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_subtlv_max_rsv_bw (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_max_rsv_bw *top;
- float fval;
- top = (struct te_link_subtlv_max_rsv_bw *) tlvh;
- ntohf (&top->value, &fval);
- if (vty != NULL)
- vty_out (vty, " Maximum Reservable Bandwidth: %g (Bytes/sec)%s", fval, VTY_NEWLINE);
- else
- zlog_info (" Maximum Reservable Bandwidth: %g (Bytes/sec)", fval);
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_subtlv_unrsv_bw (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_unrsv_bw *top;
- float fval;
- int i;
- top = (struct te_link_subtlv_unrsv_bw *) tlvh;
- for (i = 0; i < 8; i++)
- {
- ntohf (&top->value[i], &fval);
- if (vty != NULL)
- vty_out (vty, " Unreserved Bandwidth (pri %d): %g (Bytes/sec)%s", i, fval, VTY_NEWLINE);
- else
- zlog_info (" Unreserved Bandwidth (pri %d): %g (Bytes/sec)", i, fval);
- }
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_link_subtlv_rsc_clsclr (struct vty *vty, struct te_tlv_header *tlvh)
- {
- struct te_link_subtlv_rsc_clsclr *top;
- top = (struct te_link_subtlv_rsc_clsclr *) tlvh;
- if (vty != NULL)
- vty_out (vty, " Resource class/color: 0x%x%s", (u_int32_t) ntohl (top->value), VTY_NEWLINE);
- else
- zlog_info (" Resource Class/Color: 0x%x", (u_int32_t) ntohl (top->value));
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- show_vty_unknown_tlv (struct vty *vty, struct te_tlv_header *tlvh)
- {
- if (vty != NULL)
- vty_out (vty, " Unknown TLV: [type(0x%x), length(0x%x)]%s", ntohs (tlvh->type), ntohs (tlvh->length), VTY_NEWLINE);
- else
- zlog_info (" Unknown TLV: [type(0x%x), length(0x%x)]", ntohs (tlvh->type), ntohs (tlvh->length));
- return TLV_SIZE (tlvh);
- }
- static u_int16_t
- ospf_mpls_te_show_link_subtlv (struct vty *vty, struct te_tlv_header *tlvh0,
- u_int16_t subtotal, u_int16_t total)
- {
- struct te_tlv_header *tlvh, *next;
- u_int16_t sum = subtotal;
- for (tlvh = tlvh0; sum < total; tlvh = (next ? next : TLV_HDR_NEXT (tlvh)))
- {
- next = NULL;
- switch (ntohs (tlvh->type))
- {
- case TE_LINK_SUBTLV_LINK_TYPE:
- sum += show_vty_link_subtlv_link_type (vty, tlvh);
- break;
- case TE_LINK_SUBTLV_LINK_ID:
- sum += show_vty_link_subtlv_link_id (vty, tlvh);
- break;
- case TE_LINK_SUBTLV_LCLIF_IPADDR:
- sum += show_vty_link_subtlv_lclif_ipaddr (vty, tlvh);
- break;
- case TE_LINK_SUBTLV_RMTIF_IPADDR:
- sum += show_vty_link_subtlv_rmtif_ipaddr (vty, tlvh);
- break;
- case TE_LINK_SUBTLV_TE_METRIC:
- sum += show_vty_link_subtlv_te_metric (vty, tlvh);
- break;
- case TE_LINK_SUBTLV_MAX_BW:
- sum += show_vty_link_subtlv_max_bw (vty, tlvh);
- break;
- case TE_LINK_SUBTLV_MAX_RSV_BW:
- sum += show_vty_link_subtlv_max_rsv_bw (vty, tlvh);
- break;
- case TE_LINK_SUBTLV_UNRSV_BW:
- sum += show_vty_link_subtlv_unrsv_bw (vty, tlvh);
- break;
- case TE_LINK_SUBTLV_RSC_CLSCLR:
- sum += show_vty_link_subtlv_rsc_clsclr (vty, tlvh);
- break;
- default:
- sum += show_vty_unknown_tlv (vty, tlvh);
- break;
- }
- }
- return sum;
- }
- static void
- ospf_mpls_te_show_info (struct vty *vty, struct ospf_lsa *lsa)
- {
- struct lsa_header *lsah = (struct lsa_header *) lsa->data;
- struct te_tlv_header *tlvh, *next;
- u_int16_t sum, total;
- u_int16_t (* subfunc)(struct vty *vty, struct te_tlv_header *tlvh,
- u_int16_t subtotal, u_int16_t total) = NULL;
- sum = 0;
- total = ntohs (lsah->length) - OSPF_LSA_HEADER_SIZE;
- for (tlvh = TLV_HDR_TOP (lsah); sum < total;
- tlvh = (next ? next : TLV_HDR_NEXT (tlvh)))
- {
- if (subfunc != NULL)
- {
- sum = (* subfunc)(vty, tlvh, sum, total);
- next = (struct te_tlv_header *)((char *) tlvh + sum);
- subfunc = NULL;
- continue;
- }
- next = NULL;
- switch (ntohs (tlvh->type))
- {
- case TE_TLV_ROUTER_ADDR:
- sum += show_vty_router_addr (vty, tlvh);
- break;
- case TE_TLV_LINK:
- sum += show_vty_link_header (vty, tlvh);
- subfunc = ospf_mpls_te_show_link_subtlv;
- next = tlvh + 1;
- break;
- default:
- sum += show_vty_unknown_tlv (vty, tlvh);
- break;
- }
- }
- return;
- }
- static void
- ospf_mpls_te_config_write_router (struct vty *vty)
- {
- if (OspfMplsTE.status == enabled)
- {
- vty_out (vty, " mpls-te%s", VTY_NEWLINE);
- vty_out (vty, " mpls-te router-address %s%s",
- inet_ntoa (OspfMplsTE.router_addr.value), VTY_NEWLINE);
- }
- return;
- }
- static void
- ospf_mpls_te_config_write_if (struct vty *vty, struct interface *ifp)
- {
- struct mpls_te_link *lp;
- if ((OspfMplsTE.status == enabled)
- && (! if_is_loopback (ifp) && if_is_up (ifp) && ospf_oi_count (ifp) > 0)
- && ((lp = lookup_linkparams_by_ifp (ifp)) != NULL))
- {
- float fval;
- int i;
- vty_out (vty, " mpls-te link metric %u%s",
- (u_int32_t) ntohl (lp->te_metric.value), VTY_NEWLINE);
- ntohf (&lp->max_bw.value, &fval);
- if (fval >= MPLS_TE_MINIMUM_BANDWIDTH)
- vty_out (vty, " mpls-te link max-bw %g%s", fval, VTY_NEWLINE);
- ntohf (&lp->max_rsv_bw.value, &fval);
- if (fval >= MPLS_TE_MINIMUM_BANDWIDTH)
- vty_out (vty, " mpls-te link max-rsv-bw %g%s", fval, VTY_NEWLINE);
- for (i = 0; i < 8; i++)
- {
- ntohf (&lp->unrsv_bw.value[i], &fval);
- if (fval >= MPLS_TE_MINIMUM_BANDWIDTH)
- vty_out (vty, " mpls-te link unrsv-bw %d %g%s",
- i, fval, VTY_NEWLINE);
- }
- vty_out (vty, " mpls-te link rsc-clsclr 0x%x%s",
- (u_int32_t) ntohl (lp->rsc_clsclr.value), VTY_NEWLINE);
- }
- return;
- }
- /*------------------------------------------------------------------------*
- * Followings are vty command functions.
- *------------------------------------------------------------------------*/
- DEFUN (mpls_te,
- mpls_te_cmd,
- "mpls-te",
- "Configure MPLS-TE parametersn"
- "Enable the MPLS-TE functionalityn")
- {
- listnode node;
- struct mpls_te_link *lp;
- if (OspfMplsTE.status == enabled)
- return CMD_SUCCESS;
- if (IS_DEBUG_OSPF_EVENT)
- zlog_info ("MPLS-TE: OFF -> ON");
- OspfMplsTE.status = enabled;
- /*
- * Following code is intended to handle two cases;
- *
- * 1) MPLS-TE was disabled at startup time, but now become enabled.
- * 2) MPLS-TE was once enabled then disabled, and now enabled again.
- */
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- if ((lp = getdata (node)) != NULL)
- initialize_linkparams (lp);
- ospf_mpls_te_foreach_area (ospf_mpls_te_lsa_schedule, REORIGINATE_PER_AREA);
- return CMD_SUCCESS;
- }
- ALIAS (mpls_te,
- mpls_te_on_cmd,
- "mpls-te on",
- "Configure MPLS-TE parametersn"
- "Enable the MPLS-TE functionalityn");
- DEFUN (no_mpls_te,
- no_mpls_te_cmd,
- "no mpls-te",
- NO_STR
- "Configure MPLS-TE parametersn"
- "Disable the MPLS-TE functionalityn")
- {
- listnode node;
- struct mpls_te_link *lp;
- if (OspfMplsTE.status == disabled)
- return CMD_SUCCESS;
- if (IS_DEBUG_OSPF_EVENT)
- zlog_info ("MPLS-TE: ON -> OFF");
- OspfMplsTE.status = disabled;
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- if ((lp = getdata (node)) != NULL)
- if (lp->area != NULL)
- if (lp->flags & LPFLG_LSA_ENGAGED)
- ospf_mpls_te_lsa_schedule (lp, FLUSH_THIS_LSA);
- return CMD_SUCCESS;
- }
- DEFUN (mpls_te_router_addr,
- mpls_te_router_addr_cmd,
- "mpls-te router-address A.B.C.D",
- "MPLS-TE specific commandsn"
- "Stable IP address of the advertising routern"
- "MPLS-TE router address in IPv4 address formatn")
- {
- struct te_tlv_router_addr *ra = &OspfMplsTE.router_addr;
- struct in_addr value;
- if (! inet_aton (argv[0], &value))
- {
- vty_out (vty, "Please specify Router-Addr by A.B.C.D%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- if (ntohs (ra->header.type) == 0
- || ntohl (ra->value.s_addr) != ntohl (value.s_addr))
- {
- listnode node;
- struct mpls_te_link *lp;
- int need_to_reoriginate = 0;
- set_mpls_te_router_addr (value);
- if (OspfMplsTE.status == disabled)
- goto out;
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- {
- if ((lp = getdata (node)) == NULL)
- continue;
- if (lp->area == NULL)
- continue;
- if ((lp->flags & LPFLG_LSA_ENGAGED) == 0)
- {
- need_to_reoriginate = 1;
- break;
- }
- }
- for (node = listhead (OspfMplsTE.iflist); node; nextnode (node))
- {
- if ((lp = getdata (node)) == NULL)
- continue;
- if (lp->area == NULL)
- continue;
- if (need_to_reoriginate)
- lp->flags |= LPFLG_LSA_FORCED_REFRESH;
- else
- ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA);
- }
- if (need_to_reoriginate)
- ospf_mpls_te_foreach_area (
- ospf_mpls_te_lsa_schedule, REORIGINATE_PER_AREA);
- }
- out:
- return CMD_SUCCESS;
- }
- DEFUN (mpls_te_link_metric,
- mpls_te_link_metric_cmd,
- "mpls-te link metric <0-4294967295>",
- "MPLS-TE specific commandsn"
- "Configure MPLS-TE link parametersn"
- "Link metric for MPLS-TE purposen"
- "Metricn")
- {
- struct interface *ifp = (struct interface *) vty->index;
- struct mpls_te_link *lp;
- u_int32_t value;
- if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL)
- {
- vty_out (vty, "mpls_te_link_metric: Something wrong!%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- value = strtoul (argv[0], NULL, 10);
- if (ntohs (lp->te_metric.header.type) == 0
- || ntohl (lp->te_metric.value) != value)
- {
- set_linkparams_te_metric (lp, value);
- if (OspfMplsTE.status == enabled)
- if (lp->area != NULL)
- {
- if (lp->flags & LPFLG_LSA_ENGAGED)
- ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA);
- else
- ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA);
- }
- }
- return CMD_SUCCESS;
- }
- DEFUN (mpls_te_link_maxbw,
- mpls_te_link_maxbw_cmd,
- "mpls-te link max-bw BANDWIDTH",
- "MPLS-TE specific commandsn"
- "Configure MPLS-TE link parametersn"
- "Maximum bandwidth that can be usedn"
- "Bytes/second (IEEE floating point format)n")
- {
- struct interface *ifp = (struct interface *) vty->index;
- struct mpls_te_link *lp;
- float f1, f2;
- if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL)
- {
- vty_out (vty, "mpls_te_link_maxbw: Something wrong!%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- ntohf (&lp->max_bw.value, &f1);
- if (sscanf (argv[0], "%g", &f2) != 1)
- {
- vty_out (vty, "mpls_te_link_maxbw: fscanf: %s%s", strerror (errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- if (ntohs (lp->max_bw.header.type) == 0
- || f1 != f2)
- {
- set_linkparams_max_bw (lp, &f2);
- if (OspfMplsTE.status == enabled)
- if (lp->area != NULL)
- {
- if (lp->flags & LPFLG_LSA_ENGAGED)
- ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA);
- else
- ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA);
- }
- }
- return CMD_SUCCESS;
- }
- DEFUN (mpls_te_link_max_rsv_bw,
- mpls_te_link_max_rsv_bw_cmd,
- "mpls-te link max-rsv-bw BANDWIDTH",
- "MPLS-TE specific commandsn"
- "Configure MPLS-TE link parametersn"
- "Maximum bandwidth that may be reservedn"
- "Bytes/second (IEEE floating point format)n")
- {
- struct interface *ifp = (struct interface *) vty->index;
- struct mpls_te_link *lp;
- float f1, f2;
- if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL)
- {
- vty_out (vty, "mpls_te_link_max_rsv_bw: Something wrong!%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- ntohf (&lp->max_rsv_bw.value, &f1);
- if (sscanf (argv[0], "%g", &f2) != 1)
- {
- vty_out (vty, "mpls_te_link_max_rsv_bw: fscanf: %s%s", strerror (errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- if (ntohs (lp->max_rsv_bw.header.type) == 0
- || f1 != f2)
- {
- set_linkparams_max_rsv_bw (lp, &f2);
- if (OspfMplsTE.status == enabled)
- if (lp->area != NULL)
- {
- if (lp->flags & LPFLG_LSA_ENGAGED)
- ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA);
- else
- ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA);
- }
- }
- return CMD_SUCCESS;
- }
- DEFUN (mpls_te_link_unrsv_bw,
- mpls_te_link_unrsv_bw_cmd,
- "mpls-te link unrsv-bw <0-7> BANDWIDTH",
- "MPLS-TE specific commandsn"
- "Configure MPLS-TE link parametersn"
- "Unreserved bandwidth at each priority leveln"
- "Priorityn"
- "Bytes/second (IEEE floating point format)n")
- {
- struct interface *ifp = (struct interface *) vty->index;
- struct mpls_te_link *lp;
- int priority;
- float f1, f2;
- if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL)
- {
- vty_out (vty, "mpls_te_link_unrsv_bw: Something wrong!%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* We don't have to consider about range check here. */
- if (sscanf (argv[0], "%d", &priority) != 1)
- {
- vty_out (vty, "mpls_te_link_unrsv_bw: fscanf: %s%s", strerror (errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- ntohf (&lp->unrsv_bw.value [priority], &f1);
- if (sscanf (argv[1], "%g", &f2) != 1)
- {
- vty_out (vty, "mpls_te_link_unrsv_bw: fscanf: %s%s", strerror (errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- if (ntohs (lp->unrsv_bw.header.type) == 0
- || f1 != f2)
- {
- set_linkparams_unrsv_bw (lp, priority, &f2);
- if (OspfMplsTE.status == enabled)
- if (lp->area != NULL)
- {
- if (lp->flags & LPFLG_LSA_ENGAGED)
- ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA);
- else
- ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA);
- }
- }
- return CMD_SUCCESS;
- }
- DEFUN (mpls_te_link_rsc_clsclr,
- mpls_te_link_rsc_clsclr_cmd,
- "mpls-te link rsc-clsclr BITPATTERN",
- "MPLS-TE specific commandsn"
- "Configure MPLS-TE link parametersn"
- "Administrative group membershipn"
- "32-bit Hexadecimal value (ex. 0xa1)n")
- {
- struct interface *ifp = (struct interface *) vty->index;
- struct mpls_te_link *lp;
- unsigned long value;
- if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL)
- {
- vty_out (vty, "mpls_te_link_rsc_clsclr: Something wrong!%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- if (sscanf (argv[0], "0x%lx", &value) != 1)
- {
- vty_out (vty, "mpls_te_link_rsc_clsclr: fscanf: %s%s", strerror (errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- if (ntohs (lp->rsc_clsclr.header.type) == 0
- || ntohl (lp->rsc_clsclr.value) != value)
- {
- set_linkparams_rsc_clsclr (lp, value);
- if (OspfMplsTE.status == enabled)
- if (lp->area != NULL)
- {
- if (lp->flags & LPFLG_LSA_ENGAGED)
- ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA);
- else
- ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA);
- }
- }
- return CMD_SUCCESS;
- }
- DEFUN (show_mpls_te_router,
- show_mpls_te_router_cmd,
- "show mpls-te router",
- SHOW_STR
- "MPLS-TE informationn"
- "Router informationn")
- {
- if (OspfMplsTE.status == enabled)
- {
- vty_out (vty, "--- MPLS-TE router parameters ---%s",
- VTY_NEWLINE);
- if (ntohs (OspfMplsTE.router_addr.header.type) != 0)
- show_vty_router_addr (vty, &OspfMplsTE.router_addr.header);
- else if (vty != NULL)
- vty_out (vty, " N/A%s", VTY_NEWLINE);
- }
- return CMD_SUCCESS;
- }
- static void
- show_mpls_te_link_sub (struct vty *vty, struct interface *ifp)
- {
- struct mpls_te_link *lp;
- struct te_tlv_header *tlvh;
- if ((OspfMplsTE.status == enabled)
- && (! if_is_loopback (ifp) && if_is_up (ifp) && ospf_oi_count (ifp) > 0)
- && ((lp = lookup_linkparams_by_ifp (ifp)) != NULL))
- {
- vty_out (vty, "-- MPLS-TE link parameters for %s --%s",
- ifp->name, VTY_NEWLINE);
- show_vty_link_subtlv_link_type (vty, &lp->link_type.header);
- show_vty_link_subtlv_link_id (vty, &lp->link_id.header);
- if ((tlvh = (struct te_tlv_header *) lp->lclif_ipaddr) != NULL)
- show_vty_link_subtlv_lclif_ipaddr (vty, tlvh);
- if ((tlvh = (struct te_tlv_header *) lp->rmtif_ipaddr) != NULL)
- show_vty_link_subtlv_rmtif_ipaddr (vty, tlvh);
- show_vty_link_subtlv_te_metric (vty, &lp->te_metric.header);
- show_vty_link_subtlv_max_bw (vty, &lp->max_bw.header);
- show_vty_link_subtlv_max_rsv_bw (vty, &lp->max_rsv_bw.header);
- show_vty_link_subtlv_unrsv_bw (vty, &lp->unrsv_bw.header);
- show_vty_link_subtlv_rsc_clsclr (vty, &lp->rsc_clsclr.header);
- }
- else
- {
- vty_out (vty, " %s: MPLS-TE is disabled on this interface%s",
- ifp->name, VTY_NEWLINE);
- }
- return;
- }
- DEFUN (show_mpls_te_link,
- show_mpls_te_link_cmd,
- "show mpls-te interface [INTERFACE]",
- SHOW_STR
- "MPLS-TE informationn"
- "Interface informationn"
- "Interface namen")
- {
- struct interface *ifp;
- listnode node;
- /* Show All Interfaces. */
- if (argc == 0)
- for (node = listhead (iflist); node; nextnode (node))
- show_mpls_te_link_sub (vty, node->data);
- /* Interface name is specified. */
- else
- {
- if ((ifp = if_lookup_by_name (argv[0])) == NULL)
- vty_out (vty, "No such interface name%s", VTY_NEWLINE);
- else
- show_mpls_te_link_sub (vty, ifp);
- }
- return CMD_SUCCESS;
- }
- static void
- ospf_mpls_te_register_vty (void)
- {
- install_element (VIEW_NODE, &show_mpls_te_router_cmd);
- install_element (VIEW_NODE, &show_mpls_te_link_cmd);
- install_element (ENABLE_NODE, &show_mpls_te_router_cmd);
- install_element (ENABLE_NODE, &show_mpls_te_link_cmd);
- install_element (OSPF_NODE, &mpls_te_cmd);
- install_element (OSPF_NODE, &no_mpls_te_cmd);
- install_element (OSPF_NODE, &mpls_te_on_cmd);
- install_element (OSPF_NODE, &mpls_te_router_addr_cmd);
- install_element (INTERFACE_NODE, &mpls_te_link_metric_cmd);
- install_element (INTERFACE_NODE, &mpls_te_link_maxbw_cmd);
- install_element (INTERFACE_NODE, &mpls_te_link_max_rsv_bw_cmd);
- install_element (INTERFACE_NODE, &mpls_te_link_unrsv_bw_cmd);
- install_element (INTERFACE_NODE, &mpls_te_link_rsc_clsclr_cmd);
- return;
- }
- #endif /* HAVE_OSPF_TE */