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isis_te.c
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/*
* IS-IS Rout(e)ing protocol - isis_te.c
*
* This is an implementation of RFC5305 & RFC 7810
*
* Copyright (C) 2014 Orange Labs
* http://www.orange.com
*
* 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.
*/
#include <zebra.h>
#include <math.h>
#include "linklist.h"
#include "thread.h"
#include "vty.h"
#include "stream.h"
#include "memory.h"
#include "log.h"
#include "prefix.h"
#include "command.h"
#include "hash.h"
#include "if.h"
#include "vrf.h"
#include "checksum.h"
#include "md5.h"
#include "sockunion.h"
#include "network.h"
#include "isisd/dict.h"
#include "isisd/isis_constants.h"
#include "isisd/isis_common.h"
#include "isisd/isis_flags.h"
#include "isisd/isis_circuit.h"
#include "isisd/isisd.h"
#include "isisd/isis_tlv.h"
#include "isisd/isis_lsp.h"
#include "isisd/isis_pdu.h"
#include "isisd/isis_dynhn.h"
#include "isisd/isis_misc.h"
#include "isisd/isis_csm.h"
#include "isisd/isis_adjacency.h"
#include "isisd/isis_spf.h"
#include "isisd/isis_te.h"
/* Global varial for MPLS TE management */
struct isis_mpls_te isisMplsTE;
const char *mode2text[] = { "Disable", "Area", "AS", "Emulate" };
/*------------------------------------------------------------------------*
* Followings are control functions for MPLS-TE parameters management.
*------------------------------------------------------------------------*/
/* Search MPLS TE Circuit context from Interface */
static struct mpls_te_circuit *
lookup_mpls_params_by_ifp (struct interface *ifp)
{
struct isis_circuit *circuit;
if ((circuit = circuit_scan_by_ifp (ifp)) == NULL)
return NULL;
return circuit->mtc;
}
/* Create new MPLS TE Circuit context */
struct mpls_te_circuit *
mpls_te_circuit_new()
{
struct mpls_te_circuit *mtc;
zlog_debug ("ISIS MPLS-TE: Create new MPLS TE Circuit context");
mtc = XCALLOC(MTYPE_ISIS_MPLS_TE, sizeof (struct mpls_te_circuit));
if (mtc == NULL)
return NULL;
mtc->status = disable;
mtc->type = STD_TE;
mtc->length = 0;
return mtc;
}
/* Copy SUB TLVs parameters into a buffer - No space verification are performed */
/* Caller must verify before that there is enough free space in the buffer */
u_char
add_te_subtlvs(u_char *buf, struct mpls_te_circuit *mtc)
{
u_char size, *tlvs = buf;
zlog_debug ("ISIS MPLS-TE: Add TE Sub TLVs to buffer");
if (mtc == NULL)
{
zlog_debug("ISIS MPLS-TE: Abort! No MPLS TE Circuit available has been specified");
return 0;
}
/* Create buffer if not provided */
if (buf == NULL)
{
zlog_debug("ISIS MPLS-TE: Abort! No Buffer has been specified");
return 0;
}
/* TE_SUBTLV_ADMIN_GRP */
if (SUBTLV_TYPE(mtc->admin_grp) != 0)
{
size = SUBTLV_SIZE (&(mtc->admin_grp.header));
memcpy(tlvs, &(mtc->admin_grp), size);
tlvs += size;
}
/* TE_SUBTLV_LLRI */
if (SUBTLV_TYPE(mtc->llri) != 0)
{
size = SUBTLV_SIZE (&(mtc->llri.header));
memcpy(tlvs, &(mtc->llri), size);
tlvs += size;
}
/* TE_SUBTLV_LCLIF_IPADDR */
if (SUBTLV_TYPE(mtc->local_ipaddr) != 0)
{
size = SUBTLV_SIZE (&(mtc->local_ipaddr.header));
memcpy(tlvs, &(mtc->local_ipaddr), size);
tlvs += size;
}
/* TE_SUBTLV_RMTIF_IPADDR */
if (SUBTLV_TYPE(mtc->rmt_ipaddr) != 0)
{
size = SUBTLV_SIZE (&(mtc->rmt_ipaddr.header));
memcpy(tlvs, &(mtc->rmt_ipaddr), size);
tlvs += size;
}
/* TE_SUBTLV_MAX_BW */
if (SUBTLV_TYPE(mtc->max_bw) != 0)
{
size = SUBTLV_SIZE (&(mtc->max_bw.header));
memcpy(tlvs, &(mtc->max_bw), size);
tlvs += size;
}
/* TE_SUBTLV_MAX_RSV_BW */
if (SUBTLV_TYPE(mtc->max_rsv_bw) != 0)
{
size = SUBTLV_SIZE (&(mtc->max_rsv_bw.header));
memcpy(tlvs, &(mtc->max_rsv_bw), size);
tlvs += size;
}
/* TE_SUBTLV_UNRSV_BW */
if (SUBTLV_TYPE(mtc->unrsv_bw) != 0)
{
size = SUBTLV_SIZE (&(mtc->unrsv_bw.header));
memcpy(tlvs, &(mtc->unrsv_bw), size);
tlvs += size;
}
/* TE_SUBTLV_TE_METRIC */
if (SUBTLV_TYPE(mtc->te_metric) != 0)
{
size = SUBTLV_SIZE (&(mtc->te_metric.header));
memcpy(tlvs, &(mtc->te_metric), size);
tlvs += size;
}
/* TE_SUBTLV_AV_DELAY */
if (SUBTLV_TYPE(mtc->av_delay) != 0)
{
size = SUBTLV_SIZE (&(mtc->av_delay.header));
memcpy(tlvs, &(mtc->av_delay), size);
tlvs += size;
}
/* TE_SUBTLV_MM_DELAY */
if (SUBTLV_TYPE(mtc->mm_delay) != 0)
{
size = SUBTLV_SIZE (&(mtc->mm_delay.header));
memcpy(tlvs, &(mtc->mm_delay), size);
tlvs += size;
}
/* TE_SUBTLV_DELAY_VAR */
if (SUBTLV_TYPE(mtc->delay_var) != 0)
{
size = SUBTLV_SIZE (&(mtc->delay_var.header));
memcpy(tlvs, &(mtc->delay_var), size);
tlvs += size;
}
/* TE_SUBTLV_PKT_LOSS */
if (SUBTLV_TYPE(mtc->pkt_loss) != 0)
{
size = SUBTLV_SIZE (&(mtc->pkt_loss.header));
memcpy(tlvs, &(mtc->pkt_loss), size);
tlvs += size;
}
/* TE_SUBTLV_RES_BW */
if (SUBTLV_TYPE(mtc->res_bw) != 0)
{
size = SUBTLV_SIZE (&(mtc->res_bw.header));
memcpy(tlvs, &(mtc->res_bw), size);
tlvs += size;
}
/* TE_SUBTLV_AVA_BW */
if (SUBTLV_TYPE(mtc->ava_bw) != 0)
{
size = SUBTLV_SIZE (&(mtc->ava_bw.header));
memcpy(tlvs, &(mtc->ava_bw), size);
tlvs += size;
}
/* TE_SUBTLV_USE_BW */
if (SUBTLV_TYPE(mtc->use_bw) != 0)
{
size = SUBTLV_SIZE (&(mtc->use_bw.header));
memcpy(tlvs, &(mtc->use_bw), size);
tlvs += size;
}
/* Update SubTLVs length */
mtc->length = subtlvs_len(mtc);
zlog_debug("ISIS MPLS-TE: Add %d bytes length SubTLVs", mtc->length);
return mtc->length;
}
/* Compute total Sub-TLVs size */
u_char
subtlvs_len (struct mpls_te_circuit *mtc)
{
int length = 0;
/* Sanity Check */
if (mtc == NULL)
return 0;
/* TE_SUBTLV_ADMIN_GRP */
if (SUBTLV_TYPE(mtc->admin_grp) != 0)
length += SUBTLV_SIZE (&(mtc->admin_grp.header));
/* TE_SUBTLV_LLRI */
if (SUBTLV_TYPE(mtc->llri) != 0)
length += SUBTLV_SIZE (&mtc->llri.header);
/* TE_SUBTLV_LCLIF_IPADDR */
if (SUBTLV_TYPE(mtc->local_ipaddr) != 0)
length += SUBTLV_SIZE (&mtc->local_ipaddr.header);
/* TE_SUBTLV_RMTIF_IPADDR */
if (SUBTLV_TYPE(mtc->rmt_ipaddr) != 0)
length += SUBTLV_SIZE (&mtc->rmt_ipaddr.header);
/* TE_SUBTLV_MAX_BW */
if (SUBTLV_TYPE(mtc->max_bw) != 0)
length += SUBTLV_SIZE (&mtc->max_bw.header);
/* TE_SUBTLV_MAX_RSV_BW */
if (SUBTLV_TYPE(mtc->max_rsv_bw) != 0)
length += SUBTLV_SIZE (&mtc->max_rsv_bw.header);
/* TE_SUBTLV_UNRSV_BW */
if (SUBTLV_TYPE(mtc->unrsv_bw) != 0)
length += SUBTLV_SIZE (&mtc->unrsv_bw.header);
/* TE_SUBTLV_TE_METRIC */
if (SUBTLV_TYPE(mtc->te_metric) != 0)
length += SUBTLV_SIZE (&mtc->te_metric.header);
/* TE_SUBTLV_AV_DELAY */
if (SUBTLV_TYPE(mtc->av_delay) != 0)
length += SUBTLV_SIZE (&mtc->av_delay.header);
/* TE_SUBTLV_MM_DELAY */
if (SUBTLV_TYPE(mtc->mm_delay) != 0)
length += SUBTLV_SIZE (&mtc->mm_delay.header);
/* TE_SUBTLV_DELAY_VAR */
if (SUBTLV_TYPE(mtc->delay_var) != 0)
length += SUBTLV_SIZE (&mtc->delay_var.header);
/* TE_SUBTLV_PKT_LOSS */
if (SUBTLV_TYPE(mtc->pkt_loss) != 0)
length += SUBTLV_SIZE (&mtc->pkt_loss.header);
/* TE_SUBTLV_RES_BW */
if (SUBTLV_TYPE(mtc->res_bw) != 0)
length += SUBTLV_SIZE (&mtc->res_bw.header);
/* TE_SUBTLV_AVA_BW */
if (SUBTLV_TYPE(mtc->ava_bw) != 0)
length += SUBTLV_SIZE (&mtc->ava_bw.header);
/* TE_SUBTLV_USE_BW */
if (SUBTLV_TYPE(mtc->use_bw) != 0)
length += SUBTLV_SIZE (&mtc->use_bw.header);
/* Check that length is lower than the MAXIMUM SUBTLV size i.e. 256 */
if (length > MAX_SUBTLV_SIZE)
{
mtc->length = 0;
return 0;
}
mtc->length = (u_char)length;
return mtc->length;
}
/* Following are various functions to set MPLS TE parameters */
static void
set_circuitparams_admin_grp (struct mpls_te_circuit *mtc, u_int32_t admingrp)
{
SUBTLV_TYPE(mtc->admin_grp) = TE_SUBTLV_ADMIN_GRP;
SUBTLV_LEN(mtc->admin_grp) = SUBTLV_DEF_SIZE;
mtc->admin_grp.value = htonl(admingrp);
return;
}
static void __attribute__ ((unused))
set_circuitparams_llri (struct mpls_te_circuit *mtc, u_int32_t local, u_int32_t remote)
{
SUBTLV_TYPE(mtc->llri) = TE_SUBTLV_LLRI;
SUBTLV_LEN(mtc->llri) = TE_SUBTLV_LLRI_SIZE;
mtc->llri.local = htonl(local);
mtc->llri.remote = htonl(remote);
}
void
set_circuitparams_local_ipaddr (struct mpls_te_circuit *mtc, struct in_addr addr)
{
SUBTLV_TYPE(mtc->local_ipaddr) = TE_SUBTLV_LOCAL_IPADDR;
SUBTLV_LEN(mtc->local_ipaddr) = SUBTLV_DEF_SIZE;
mtc->local_ipaddr.value.s_addr = addr.s_addr;
return;
}
void
set_circuitparams_rmt_ipaddr (struct mpls_te_circuit *mtc, struct in_addr addr)
{
SUBTLV_TYPE(mtc->rmt_ipaddr) = TE_SUBTLV_RMT_IPADDR;
SUBTLV_LEN(mtc->rmt_ipaddr) = SUBTLV_DEF_SIZE;
mtc->rmt_ipaddr.value.s_addr = addr.s_addr;
return;
}
static void
set_circuitparams_max_bw (struct mpls_te_circuit *mtc, float fp)
{
SUBTLV_TYPE(mtc->max_bw) = TE_SUBTLV_MAX_BW;
SUBTLV_LEN(mtc->max_bw) = SUBTLV_DEF_SIZE;
mtc->max_bw.value = htonf(fp);
return;
}
static void
set_circuitparams_max_rsv_bw (struct mpls_te_circuit *mtc, float fp)
{
SUBTLV_TYPE(mtc->max_rsv_bw) = TE_SUBTLV_MAX_RSV_BW;
SUBTLV_LEN(mtc->max_rsv_bw) = SUBTLV_DEF_SIZE;
mtc->max_rsv_bw.value = htonf(fp);
return;
}
static void
set_circuitparams_unrsv_bw (struct mpls_te_circuit *mtc, int priority, float fp)
{
/* Note that TLV-length field is the size of array. */
SUBTLV_TYPE(mtc->unrsv_bw) = TE_SUBTLV_UNRSV_BW;
SUBTLV_LEN(mtc->unrsv_bw) = TE_SUBTLV_UNRSV_SIZE;
mtc->unrsv_bw.value[priority] = htonf(fp);
return;
}
static void
set_circuitparams_te_metric (struct mpls_te_circuit *mtc, u_int32_t te_metric)
{
SUBTLV_TYPE(mtc->te_metric) = TE_SUBTLV_TE_METRIC;
SUBTLV_LEN(mtc->te_metric) = TE_SUBTLV_TE_METRIC_SIZE;
mtc->te_metric.value[0] = (te_metric >> 16) & 0xFF;
mtc->te_metric.value[1] = (te_metric >> 8) & 0xFF;
mtc->te_metric.value[2] = te_metric & 0xFF;
return;
}
static void
set_circuitparams_inter_as (struct mpls_te_circuit *mtc, struct in_addr addr, u_int32_t as)
{
/* Set the Remote ASBR IP address and then the associated AS number */
SUBTLV_TYPE(mtc->rip) = TE_SUBTLV_RIP;
SUBTLV_LEN(mtc->rip) = SUBTLV_DEF_SIZE;
mtc->rip.value.s_addr = addr.s_addr;
SUBTLV_TYPE(mtc->ras) = TE_SUBTLV_RAS;
SUBTLV_LEN(mtc->ras) = SUBTLV_DEF_SIZE;
mtc->ras.value = htonl(as);
}
static void
unset_circuitparams_inter_as (struct mpls_te_circuit *mtc)
{
/* Reset the Remote ASBR IP address and then the associated AS number */
SUBTLV_TYPE(mtc->rip) = 0;
SUBTLV_LEN(mtc->rip) = 0;
mtc->rip.value.s_addr = 0;
SUBTLV_TYPE(mtc->ras) = 0;
SUBTLV_LEN(mtc->ras) = 0;
mtc->ras.value = 0;
}
static void
set_circuitparams_av_delay (struct mpls_te_circuit *mtc, u_int32_t delay, u_char anormal)
{
u_int32_t tmp;
/* Note that TLV-length field is the size of array. */
SUBTLV_TYPE(mtc->av_delay) = TE_SUBTLV_AV_DELAY;
SUBTLV_LEN(mtc->av_delay) = SUBTLV_DEF_SIZE;
tmp = delay & TE_EXT_MASK;
if (anormal)
tmp |= TE_EXT_ANORMAL;
mtc->av_delay.value = htonl(tmp);
return;
}
static void
set_circuitparams_mm_delay (struct mpls_te_circuit *mtc, u_int32_t low, u_int32_t high, u_char anormal)
{
u_int32_t tmp;
/* Note that TLV-length field is the size of array. */
SUBTLV_TYPE(mtc->mm_delay) = TE_SUBTLV_MM_DELAY;
SUBTLV_LEN(mtc->mm_delay) = TE_SUBTLV_MM_DELAY_SIZE;
tmp = low & TE_EXT_MASK;
if (anormal)
tmp |= TE_EXT_ANORMAL;
mtc->mm_delay.low = htonl(tmp);
mtc->mm_delay.high = htonl(high);
return;
}
static void
set_circuitparams_delay_var (struct mpls_te_circuit *mtc, u_int32_t jitter)
{
/* Note that TLV-length field is the size of array. */
SUBTLV_TYPE(mtc->delay_var) = TE_SUBTLV_DELAY_VAR;
SUBTLV_LEN(mtc->delay_var) = SUBTLV_DEF_SIZE;
mtc->delay_var.value = htonl(jitter & TE_EXT_MASK);
return;
}
static void
set_circuitparams_pkt_loss (struct mpls_te_circuit *mtc, u_int32_t loss, u_char anormal)
{
u_int32_t tmp;
/* Note that TLV-length field is the size of array. */
SUBTLV_TYPE(mtc->pkt_loss) = TE_SUBTLV_PKT_LOSS;
SUBTLV_LEN(mtc->pkt_loss) = SUBTLV_DEF_SIZE;
tmp = loss & TE_EXT_MASK;
if (anormal)
tmp |= TE_EXT_ANORMAL;
mtc->pkt_loss.value = htonl(tmp);
return;
}
static void
set_circuitparams_res_bw (struct mpls_te_circuit *mtc, float fp)
{
/* Note that TLV-length field is the size of array. */
SUBTLV_TYPE(mtc->res_bw) = TE_SUBTLV_RES_BW;
SUBTLV_LEN(mtc->res_bw) = SUBTLV_DEF_SIZE;
mtc->res_bw.value = htonf(fp);
return;
}
static void
set_circuitparams_ava_bw (struct mpls_te_circuit *mtc, float fp)
{
/* Note that TLV-length field is the size of array. */
SUBTLV_TYPE(mtc->ava_bw) = TE_SUBTLV_AVA_BW;
SUBTLV_LEN(mtc->ava_bw) = SUBTLV_DEF_SIZE;
mtc->ava_bw.value = htonf(fp);
return;
}
static void
set_circuitparams_use_bw (struct mpls_te_circuit *mtc, float fp)
{
/* Note that TLV-length field is the size of array. */
SUBTLV_TYPE(mtc->use_bw) = TE_SUBTLV_USE_BW;
SUBTLV_LEN(mtc->use_bw) = SUBTLV_DEF_SIZE;
mtc->use_bw.value = htonf(fp);
return;
}
/* Main initialization / update function of the MPLS TE Circuit context */
/* Call when interface TE Link parameters are modified */
void
isis_link_params_update (struct isis_circuit *circuit, struct interface *ifp)
{
int i;
struct prefix_ipv4 *addr;
struct mpls_te_circuit *mtc;
/* Sanity Check */
if ((circuit == NULL) || (ifp == NULL))
return;
zlog_info ("MPLS-TE: Initialize circuit parameters for interface %s", ifp->name);
/* Check if MPLS TE Circuit context has not been already created */
if (circuit->mtc == NULL)
circuit->mtc = mpls_te_circuit_new();
mtc = circuit->mtc;
/* Fulfil MTC TLV from ifp TE Link parameters */
if (HAS_LINK_PARAMS(ifp))
{
mtc->status = enable;
/* STD_TE metrics */
if (IS_PARAM_SET(ifp->link_params, LP_ADM_GRP))
set_circuitparams_admin_grp (mtc, ifp->link_params->admin_grp);
else
SUBTLV_TYPE(mtc->admin_grp) = 0;
/* If not already set, register local IP addr from ip_addr list if it exists */
if (SUBTLV_TYPE(mtc->local_ipaddr) == 0)
{
if (circuit->ip_addrs != NULL && listcount(circuit->ip_addrs) != 0)
{
addr = (struct prefix_ipv4 *)listgetdata ((struct listnode *)listhead (circuit->ip_addrs));
set_circuitparams_local_ipaddr (mtc, addr->prefix);
}
}
/* If not already set, try to determine Remote IP addr if circuit is P2P */
if ((SUBTLV_TYPE(mtc->rmt_ipaddr) == 0) && (circuit->circ_type == CIRCUIT_T_P2P))
{
struct isis_adjacency *adj = circuit->u.p2p.neighbor;
if (adj->ipv4_addrs != NULL && listcount(adj->ipv4_addrs) != 0)
{
struct in_addr *ip_addr;
ip_addr = (struct in_addr *)listgetdata ((struct listnode *)listhead (adj->ipv4_addrs));
set_circuitparams_rmt_ipaddr (mtc, *ip_addr);
}
}
if (IS_PARAM_SET(ifp->link_params, LP_MAX_BW))
set_circuitparams_max_bw (mtc, ifp->link_params->max_bw);
else
SUBTLV_TYPE(mtc->max_bw) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_MAX_RSV_BW))
set_circuitparams_max_rsv_bw (mtc, ifp->link_params->max_rsv_bw);
else
SUBTLV_TYPE(mtc->max_rsv_bw) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_UNRSV_BW))
for (i = 0; i < MAX_CLASS_TYPE; i++)
set_circuitparams_unrsv_bw (mtc, i, ifp->link_params->unrsv_bw[i]);
else
SUBTLV_TYPE(mtc->unrsv_bw) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_TE_METRIC))
set_circuitparams_te_metric(mtc, ifp->link_params->te_metric);
else
SUBTLV_TYPE(mtc->te_metric) = 0;
/* TE metric Extensions */
if (IS_PARAM_SET(ifp->link_params, LP_DELAY))
set_circuitparams_av_delay(mtc, ifp->link_params->av_delay, 0);
else
SUBTLV_TYPE(mtc->av_delay) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_MM_DELAY))
set_circuitparams_mm_delay(mtc, ifp->link_params->min_delay, ifp->link_params->max_delay, 0);
else
SUBTLV_TYPE(mtc->mm_delay) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_DELAY_VAR))
set_circuitparams_delay_var(mtc, ifp->link_params->delay_var);
else
SUBTLV_TYPE(mtc->delay_var) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_PKT_LOSS))
set_circuitparams_pkt_loss(mtc, ifp->link_params->pkt_loss, 0);
else
SUBTLV_TYPE(mtc->pkt_loss) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_RES_BW))
set_circuitparams_res_bw(mtc, ifp->link_params->res_bw);
else
SUBTLV_TYPE(mtc->res_bw) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_AVA_BW))
set_circuitparams_ava_bw(mtc, ifp->link_params->ava_bw);
else
SUBTLV_TYPE(mtc->ava_bw) = 0;
if (IS_PARAM_SET(ifp->link_params, LP_USE_BW))
set_circuitparams_use_bw(mtc, ifp->link_params->use_bw);
else
SUBTLV_TYPE(mtc->use_bw) = 0;
/* INTER_AS */
if (IS_PARAM_SET(ifp->link_params, LP_RMT_AS))
set_circuitparams_inter_as(mtc, ifp->link_params->rmt_ip, ifp->link_params->rmt_as);
else
/* reset inter-as TE params */
unset_circuitparams_inter_as (mtc);
/* Compute total length of SUB TLVs */
mtc->length = subtlvs_len(mtc);
}
else
mtc->status = disable;
/* Finally Update LSP */
#if 0
if (IS_MPLS_TE(isisMplsTE) && circuit->area)
lsp_regenerate_schedule (circuit->area, circuit->is_type, 0);
#endif
return;
}
void
isis_mpls_te_update (struct interface *ifp)
{
struct isis_circuit *circuit;
/* Sanity Check */
if (ifp == NULL)
return;
/* Get circuit context from interface */
if ((circuit = circuit_scan_by_ifp(ifp)) == NULL)
return;
/* Update TE TLVs ... */
isis_link_params_update(circuit, ifp);
/* ... and LSP */
if (IS_MPLS_TE(isisMplsTE) && circuit->area)
lsp_regenerate_schedule (circuit->area, circuit->is_type, 0);
return;
}
/*------------------------------------------------------------------------*
* Followings are vty session control functions.
*------------------------------------------------------------------------*/
static u_char
show_vty_subtlv_admin_grp (struct vty *vty, struct te_subtlv_admin_grp *tlv)
{
if (vty != NULL)
vty_out (vty, " Administrative Group: 0x%x%s",
(u_int32_t) ntohl (tlv->value), VTY_NEWLINE);
else
zlog_debug (" Administrative Group: 0x%x",
(u_int32_t) ntohl (tlv->value));
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_llri (struct vty *vty, struct te_subtlv_llri *tlv)
{
if (vty != NULL)
{
vty_out (vty, " Link Local ID: %d%s", (u_int32_t) ntohl (tlv->local),
VTY_NEWLINE);
vty_out (vty, " Link Remote ID: %d%s", (u_int32_t) ntohl (tlv->remote),
VTY_NEWLINE);
}
else
{
zlog_debug (" Link Local ID: %d", (u_int32_t) ntohl (tlv->local));
zlog_debug (" Link Remote ID: %d", (u_int32_t) ntohl (tlv->remote));
}
return (SUBTLV_HDR_SIZE + TE_SUBTLV_LLRI_SIZE);
}
static u_char
show_vty_subtlv_local_ipaddr (struct vty *vty, struct te_subtlv_local_ipaddr *tlv)
{
if (vty != NULL)
vty_out (vty, " Local Interface IP Address(es): %s%s", inet_ntoa (tlv->value), VTY_NEWLINE);
else
zlog_debug (" Local Interface IP Address(es): %s", inet_ntoa (tlv->value));
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_rmt_ipaddr (struct vty *vty, struct te_subtlv_rmt_ipaddr *tlv)
{
if (vty != NULL)
vty_out (vty, " Remote Interface IP Address(es): %s%s", inet_ntoa (tlv->value), VTY_NEWLINE);
else
zlog_debug (" Remote Interface IP Address(es): %s", inet_ntoa (tlv->value));
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_max_bw (struct vty *vty, struct te_subtlv_max_bw *tlv)
{
float fval;
fval = ntohf (tlv->value);
if (vty != NULL)
vty_out (vty, " Maximum Bandwidth: %g (Bytes/sec)%s", fval, VTY_NEWLINE);
else
zlog_debug (" Maximum Bandwidth: %g (Bytes/sec)", fval);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_max_rsv_bw (struct vty *vty, struct te_subtlv_max_rsv_bw *tlv)
{
float fval;
fval = ntohf (tlv->value);
if (vty != NULL)
vty_out (vty, " Maximum Reservable Bandwidth: %g (Bytes/sec)%s", fval,
VTY_NEWLINE);
else
zlog_debug (" Maximum Reservable Bandwidth: %g (Bytes/sec)", fval);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_unrsv_bw (struct vty *vty, struct te_subtlv_unrsv_bw *tlv)
{
float fval1, fval2;
int i;
if (vty != NULL)
vty_out (vty, " Unreserved Bandwidth:%s",VTY_NEWLINE);
else
zlog_debug (" Unreserved Bandwidth:");
for (i = 0; i < MAX_CLASS_TYPE; i+=2)
{
fval1 = ntohf (tlv->value[i]);
fval2 = ntohf (tlv->value[i+1]);
if (vty != NULL)
vty_out (vty, " [%d]: %g (Bytes/sec),\t[%d]: %g (Bytes/sec)%s", i, fval1, i+1, fval2, VTY_NEWLINE);
else
zlog_debug (" [%d]: %g (Bytes/sec),\t[%d]: %g (Bytes/sec)", i, fval1, i+1, fval2);
}
return (SUBTLV_HDR_SIZE + TE_SUBTLV_UNRSV_SIZE);
}
static u_char
show_vty_subtlv_te_metric (struct vty *vty, struct te_subtlv_te_metric *tlv)
{
u_int32_t te_metric;
te_metric = tlv->value[2] | tlv->value[1] << 8 | tlv->value[0] << 16;
if (vty != NULL)
vty_out (vty, " Traffic Engineering Metric: %u%s", te_metric, VTY_NEWLINE);
else
zlog_debug (" Traffic Engineering Metric: %u", te_metric);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_ras (struct vty *vty, struct te_subtlv_ras *tlv)
{
if (vty != NULL)
vty_out (vty, " Inter-AS TE Remote AS number: %u%s", ntohl (tlv->value), VTY_NEWLINE);
else
zlog_debug (" Inter-AS TE Remote AS number: %u", ntohl (tlv->value));
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_rip (struct vty *vty, struct te_subtlv_rip *tlv)
{
if (vty != NULL)
vty_out (vty, " Inter-AS TE Remote ASBR IP address: %s%s", inet_ntoa (tlv->value), VTY_NEWLINE);
else
zlog_debug (" Inter-AS TE Remote ASBR IP address: %s", inet_ntoa (tlv->value));
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_av_delay (struct vty *vty, struct te_subtlv_av_delay *tlv)
{
u_int32_t delay;
u_int32_t A;
delay = (u_int32_t) ntohl (tlv->value) & TE_EXT_MASK;
A = (u_int32_t) ntohl (tlv->value) & TE_EXT_ANORMAL;
if (vty != NULL)
vty_out (vty, " %s Average Link Delay: %d (micro-sec)%s", A ? "Anomalous" : "Normal", delay, VTY_NEWLINE);
else
zlog_debug (" %s Average Link Delay: %d (micro-sec)", A ? "Anomalous" : "Normal", delay);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_mm_delay (struct vty *vty, struct te_subtlv_mm_delay *tlv)
{
u_int32_t low, high;
u_int32_t A;
low = (u_int32_t) ntohl (tlv->low) & TE_EXT_MASK;
A = (u_int32_t) ntohl (tlv->low) & TE_EXT_ANORMAL;
high = (u_int32_t) ntohl (tlv->high) & TE_EXT_MASK;
if (vty != NULL)
vty_out (vty, " %s Min/Max Link Delay: %d / %d (micro-sec)%s", A ? "Anomalous" : "Normal", low, high, VTY_NEWLINE);
else
zlog_debug (" %s Min/Max Link Delay: %d / %d (micro-sec)", A ? "Anomalous" : "Normal", low, high);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_delay_var (struct vty *vty, struct te_subtlv_delay_var *tlv)
{
u_int32_t jitter;
jitter = (u_int32_t) ntohl (tlv->value) & TE_EXT_MASK;
if (vty != NULL)
vty_out (vty, " Delay Variation: %d (micro-sec)%s", jitter, VTY_NEWLINE);
else
zlog_debug (" Delay Variation: %d (micro-sec)", jitter);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_pkt_loss (struct vty *vty, struct te_subtlv_pkt_loss *tlv)
{
u_int32_t loss;
u_int32_t A;
float fval;
loss = (u_int32_t) ntohl (tlv->value) & TE_EXT_MASK;
fval = (float) (loss * LOSS_PRECISION);
A = (u_int32_t) ntohl (tlv->value) & TE_EXT_ANORMAL;
if (vty != NULL)
vty_out (vty, " %s Link Packet Loss: %g (%%)%s", A ? "Anomalous" : "Normal", fval, VTY_NEWLINE);
else
zlog_debug (" %s Link Packet Loss: %g (%%)", A ? "Anomalous" : "Normal", fval);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_res_bw (struct vty *vty, struct te_subtlv_res_bw *tlv)
{
float fval;
fval = ntohf(tlv->value);
if (vty != NULL)
vty_out (vty, " Unidirectional Residual Bandwidth: %g (Bytes/sec)%s", fval, VTY_NEWLINE);
else
zlog_debug (" Unidirectional Residual Bandwidth: %g (Bytes/sec)", fval);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_ava_bw (struct vty *vty, struct te_subtlv_ava_bw *tlv)
{
float fval;
fval = ntohf (tlv->value);
if (vty != NULL)
vty_out (vty, " Unidirectional Available Bandwidth: %g (Bytes/sec)%s", fval, VTY_NEWLINE);
else
zlog_debug (" Unidirectional Available Bandwidth: %g (Bytes/sec)", fval);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_subtlv_use_bw (struct vty *vty, struct te_subtlv_use_bw *tlv)
{
float fval;
fval = ntohf (tlv->value);
if (vty != NULL)
vty_out (vty, " Unidirectional Utilized Bandwidth: %g (Bytes/sec)%s", fval, VTY_NEWLINE);
else
zlog_debug (" Unidirectional Utilized Bandwidth: %g (Bytes/sec)", fval);
return (SUBTLV_HDR_SIZE + SUBTLV_DEF_SIZE);
}
static u_char
show_vty_unknown_tlv (struct vty *vty, struct subtlv_header *tlvh)
{
int i, rtn = 1;
u_char *v = (u_char *)tlvh;
if (vty != NULL)
{
if (tlvh->length != 0)
{
vty_out (vty, " Unknown TLV: [type(%#.2x), length(%#.2x)]%s",
tlvh->type, tlvh->length, VTY_NEWLINE);
vty_out(vty, " Dump: [00]");
rtn = 1; /* initialize end of line counter */
for (i = 0; i < tlvh->length; i++)
{
vty_out (vty, " %#.2x", v[i]);
if (rtn == 8)
{
vty_out (vty, "%s [%.2x]", VTY_NEWLINE, i + 1);
rtn = 1;
}
else
rtn++;
}
vty_out (vty, "%s", VTY_NEWLINE);
}
else
vty_out (vty, " Unknown TLV: [type(%#.2x), length(%#.2x)]%s",
tlvh->type, tlvh->length, VTY_NEWLINE);
}
else
{
zlog_debug (" Unknown TLV: [type(%#.2x), length(%#.2x)]",
tlvh->type, tlvh->length);
}
return SUBTLV_SIZE(tlvh);
}
/* Main Show function */
void
mpls_te_print_detail(struct vty *vty, struct te_is_neigh *te)
{
struct subtlv_header *tlvh, *next;
u_int16_t sum = 0;
zlog_debug ("ISIS MPLS-TE: Show database TE detail");
tlvh = (struct subtlv_header *)te->sub_tlvs;
for (; sum < te->sub_tlvs_length; tlvh = (next ? next : SUBTLV_HDR_NEXT (tlvh)))
{
next = NULL;
switch (tlvh->type)
{