ospfd: OSPF Segment Routing improvement

- Improve parsing of Router Information, especially when a router
   stops advertising Segment Routing capabilities
 - Finish conversion to '%pFX' and '%pI4'

Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
This commit is contained in:
Olivier Dugeon 2020-04-07 19:36:12 +02:00
parent b37eb79c01
commit b61264a8a3
3 changed files with 164 additions and 145 deletions

View File

@ -33,6 +33,7 @@
#include <stdlib.h>
#include <zebra.h>
#include "printfrr.h"
#include "command.h"
#include "hash.h"
#include "if.h"
@ -167,6 +168,8 @@ static void sr_node_del(struct sr_node *srn)
if (srn == NULL)
return;
osr_debug(" |- Delete SR node for %pI4", &srn->adv_router);
/* Clean Extended Link */
list_delete(&srn->ext_link);
@ -509,20 +512,20 @@ static int compute_prefix_nhlfe(struct sr_prefix *srp)
/* First determine the nexthop */
srp->or = get_nexthop_by_addr(top, srp->prefv4);
srp->route = get_nexthop_by_addr(top, srp->prefv4);
/* Nexthop could be not found when OSPF Adjacency just fire up
* because SPF don't yet populate routing table. This NHLFE will
* be fixed later when SR SPF schedule will be called.
*/
if (srp->or == NULL)
if (srp->route == NULL)
return rc;
/* Compute Input Label with self SRGB */
srp->label_in = index2label(srp->sid, OspfSR.srgb);
rc = 0;
for (ALL_LIST_ELEMENTS_RO(srp->or->paths, node, path)) {
for (ALL_LIST_ELEMENTS_RO(srp->route->paths, node, path)) {
osr_debug(" |- Process new route via %pI4 for this prefix",
&path->nexthop);
@ -548,8 +551,8 @@ static int compute_prefix_nhlfe(struct sr_prefix *srp)
* This is due to the fact that Extended Link / Prefix could
* be received before corresponding Router Information LSA
*/
if ((srnext == NULL) || (srnext->srgb.lower_bound == 0)
|| (srnext->srgb.range_size == 0))
if (srnext == NULL || srnext->srgb.lower_bound == 0
|| srnext->srgb.range_size == 0)
continue;
osr_debug(" |- Found SRGB %u/%u for next hop SR-Node %pI4",
@ -622,14 +625,15 @@ static inline void update_adj_sid(struct sr_nhlfe n1, struct sr_nhlfe n2)
}
/* Update NHLFE for Prefix SID */
static void update_prefix_sid (const struct sr_prefix *srp) {
static void update_prefix_sid(const struct sr_prefix *srp)
{
struct zapi_labels zl;
struct zapi_nexthop *znh;
struct listnode *node;
struct ospf_path *path;
osr_debug(" |- Update Labels %u for Prefix %pFX",
srp->label_in, (struct prefix *)&srp->prefv4);
osr_debug(" |- Update Labels %u for Prefix %pFX", srp->label_in,
(struct prefix *)&srp->prefv4);
/* Prepare message. */
memset(&zl, 0, sizeof(zl));
@ -656,11 +660,10 @@ static void update_prefix_sid (const struct sr_prefix *srp) {
zl.route.instance = 0;
/* Check that SRP contains at least one valid path */
if ((srp->or == NULL) || (srp->or->paths == NULL)
|| (list_isempty(srp->or->paths))) {
if (IS_NO_ROUTE(srp)) {
return;
}
for (ALL_LIST_ELEMENTS_RO(srp->or->paths, node, path)) {
for (ALL_LIST_ELEMENTS_RO(srp->route->paths, node, path)) {
if (path->srni.label_out == MPLS_INVALID_LABEL)
continue;
@ -688,8 +691,8 @@ static void delete_prefix_sid(const struct sr_prefix *srp)
{
struct zapi_labels zl;
osr_debug(" |- Delete Labels %u for Prefix %pFX",
srp->label_in, (struct prefix *)&srp->prefv4);
osr_debug(" |- Delete Labels %u for Prefix %pFX", srp->label_in,
(struct prefix *)&srp->prefv4);
/* Prepare message. */
memset(&zl, 0, sizeof(zl));
@ -820,8 +823,7 @@ static struct sr_prefix *get_ext_prefix_sid(struct tlv_header *tlvh)
srp->sid = GET_LABEL(ntohl(psid->value));
else
srp->sid = ntohl(psid->value);
IPV4_ADDR_COPY(&srp->prefv4.prefix,
&pref->address);
IPV4_ADDR_COPY(&srp->prefv4.prefix, &pref->address);
srp->prefv4.prefixlen = pref->pref_length;
srp->prefv4.family = AF_INET;
apply_mask_ipv4(&srp->prefv4);
@ -876,10 +878,10 @@ static void update_ext_link_sid(struct sr_node *srn, struct sr_link *srl,
osr_debug(" |- Process Extended Link Adj/Lan-SID");
/* Process only Local Adj/Lan_Adj SID coming from LSA SELF */
if (!CHECK_FLAG(srl->flags[0], EXT_SUBTLV_LINK_ADJ_SID_LFLG)
|| !CHECK_FLAG(srl->flags[1], EXT_SUBTLV_LINK_ADJ_SID_LFLG)
|| !CHECK_FLAG(lsa_flags, OSPF_LSA_SELF))
/* Skip Local Adj/Lan_Adj SID coming from neighbors */
if (!CHECK_FLAG(lsa_flags, OSPF_LSA_SELF)
&& (CHECK_FLAG(srl->flags[0], EXT_SUBTLV_LINK_ADJ_SID_LFLG)
|| CHECK_FLAG(srl->flags[1], EXT_SUBTLV_LINK_ADJ_SID_LFLG)))
return;
/* Search for existing Segment Link */
@ -1039,16 +1041,17 @@ static void update_out_nhlfe(struct hash_bucket *bucket, void *args)
for (ALL_LIST_ELEMENTS_RO(srn->ext_prefix, node, srp)) {
/* Process only SID Index with valid route */
if (srp->or == NULL)
if (srp->route == NULL)
continue;
for (ALL_LIST_ELEMENTS_RO(srp->or->paths, pnode, path)) {
for (ALL_LIST_ELEMENTS_RO(srp->route->paths, pnode, path)) {
/* Process only SID Index for next hop without PHP */
if ((path->srni.nexthop == NULL)
&& (!CHECK_FLAG(srp->flags,
EXT_SUBTLV_PREFIX_SID_NPFLG)))
continue;
path->srni.label_out = index2label(srp->sid, srnext->srgb);
path->srni.label_out =
index2label(srp->sid, srnext->srgb);
update_prefix_sid(srp);
}
}
@ -1067,10 +1070,11 @@ void ospf_sr_ri_lsa_update(struct ospf_lsa *lsa)
struct sr_node *srn;
struct tlv_header *tlvh;
struct lsa_header *lsah = lsa->data;
struct ri_sr_tlv_sid_label_range *ri_srgb;
struct ri_sr_tlv_sr_algorithm *algo;
struct ri_sr_tlv_sid_label_range *ri_srgb = NULL;
struct ri_sr_tlv_sr_algorithm *algo = NULL;
struct sr_srgb srgb;
uint16_t length = 0, sum = 0;
uint8_t msd = 0;
osr_debug("SR (%s): Process Router Information LSA 4.0.0.%u from %pI4",
__func__, GET_OPAQUE_ID(ntohl(lsah->id.s_addr)),
@ -1086,26 +1090,10 @@ void ospf_sr_ri_lsa_update(struct ospf_lsa *lsa)
return;
}
/* Get SR Node in hash table from Router ID */
srn = hash_get(OspfSR.neighbors, (void *)&(lsah->adv_router),
(void *)sr_node_new);
/* Search SR Node in hash table from Router ID */
srn = (struct sr_node *)hash_lookup(OspfSR.neighbors,
&lsah->adv_router);
/* Sanity check */
if (srn == NULL) {
flog_err(EC_OSPF_SR_NODE_CREATE,
"SR (%s): Abort! can't create SR node in hash table",
__func__);
return;
}
if ((srn->instance != 0) && (srn->instance != ntohl(lsah->id.s_addr))) {
flog_err(EC_OSPF_SR_INVALID_LSA_ID,
"SR (%s): Abort! Wrong "
"LSA ID 4.0.0.%u for SR node %s/%u",
__func__, GET_OPAQUE_ID(ntohl(lsah->id.s_addr)),
inet_ntoa(lsah->adv_router), srn->instance);
return;
}
/* Collect Router Information Sub TLVs */
/* Initialize TLV browsing */
@ -1118,23 +1106,14 @@ void ospf_sr_ri_lsa_update(struct ospf_lsa *lsa)
switch (ntohs(tlvh->type)) {
case RI_SR_TLV_SR_ALGORITHM:
algo = (struct ri_sr_tlv_sr_algorithm *)tlvh;
int i;
for (i = 0; i < ntohs(algo->header.length); i++)
srn->algo[i] = algo->value[0];
for (; i < ALGORITHM_COUNT; i++)
srn->algo[i] = SR_ALGORITHM_UNSET;
sum += TLV_SIZE(tlvh);
break;
case RI_SR_TLV_SID_LABEL_RANGE:
ri_srgb = (struct ri_sr_tlv_sid_label_range *)tlvh;
srgb.range_size = GET_RANGE_SIZE(ntohl(ri_srgb->size));
srgb.lower_bound =
GET_LABEL(ntohl(ri_srgb->lower.value));
sum += TLV_SIZE(tlvh);
break;
case RI_SR_TLV_NODE_MSD:
srn->msd = ((struct ri_sr_tlv_node_msd *)(tlvh))->value;
msd = ((struct ri_sr_tlv_node_msd *)(tlvh))->value;
sum += TLV_SIZE(tlvh);
break;
default:
@ -1143,38 +1122,82 @@ void ospf_sr_ri_lsa_update(struct ospf_lsa *lsa)
}
}
/* Check that we collect mandatory parameters */
if (srn->algo[0] == SR_ALGORITHM_UNSET || srgb.range_size == 0
|| srgb.lower_bound == 0) {
flog_err(EC_OSPF_SR_NODE_CREATE,
"SR (%s): Missing mandatory parameters. Abort!",
__func__);
hash_release(OspfSR.neighbors, &(srn->adv_router));
XFREE(MTYPE_OSPF_SR_PARAMS, srn);
/* Check if Segment Routing Capabilities has been found */
if (ri_srgb == NULL) {
/* Skip Router Information without SR capabilities
* advertise by a non SR Node */
if (srn == NULL) {
return;
} else {
/* Remove SR Node that advertise Router Information
* without SR capabilities. This could correspond to a
* Node stopping Segment Routing */
hash_release(OspfSR.neighbors, &(srn->adv_router));
sr_node_del(srn);
return;
}
}
/* Check that RI LSA belongs to the correct SR Node */
if ((srn != NULL) && (srn->instance != 0)
&& (srn->instance != ntohl(lsah->id.s_addr))) {
flog_err(EC_OSPF_SR_INVALID_LSA_ID,
"SR (%s): Abort! Wrong "
"LSA ID 4.0.0.%u for SR node %pI4/%u",
__func__, GET_OPAQUE_ID(ntohl(lsah->id.s_addr)),
&lsah->adv_router, srn->instance);
return;
}
/* OK. All things look good. Get SRGB */
srgb.range_size = GET_RANGE_SIZE(ntohl(ri_srgb->size));
srgb.lower_bound = GET_LABEL(ntohl(ri_srgb->lower.value));
/* Check if it is a new SR Node or not */
if (srn->instance == 0) {
if (srn == NULL) {
/* Get a new SR Node in hash table from Router ID */
srn = (struct sr_node *)hash_get(OspfSR.neighbors,
&lsah->adv_router,
(void *)sr_node_new);
/* Sanity check */
if (srn == NULL) {
flog_err(
EC_OSPF_SR_NODE_CREATE,
"SR (%s): Abort! can't create SR node in hash table",
__func__);
return;
}
/* update LSA ID */
srn->instance = ntohl(lsah->id.s_addr);
/* Copy SRGB */
srn->srgb.range_size = srgb.range_size;
srn->srgb.lower_bound = srgb.lower_bound;
/* Set Algorithm */
if (algo != NULL) {
int i;
for (i = 0; i < ntohs(algo->header.length); i++)
srn->algo[i] = algo->value[0];
for (; i < ALGORITHM_COUNT; i++)
srn->algo[i] = SR_ALGORITHM_UNSET;
} else {
srn->algo[0] = SR_ALGORITHM_SPF;
}
/* set MSD */
srn->msd = msd;
return;
}
/* Check if SRGB has changed */
if ((srn->srgb.range_size != srgb.range_size)
|| (srn->srgb.lower_bound != srgb.lower_bound)) {
srn->srgb.range_size = srgb.range_size;
srn->srgb.lower_bound = srgb.lower_bound;
/* Update NHLFE if it is a neighbor SR node */
if (srn->neighbor == OspfSR.self)
hash_iterate(OspfSR.neighbors,
(void (*)(struct hash_bucket *,
void *))update_out_nhlfe,
(void *)srn);
}
if ((srn->srgb.range_size == srgb.range_size)
&& (srn->srgb.lower_bound == srgb.lower_bound))
return;
/* Update SRGB ... */
srn->srgb.range_size = srgb.range_size;
srn->srgb.lower_bound = srgb.lower_bound;
/* ... and NHLFE if it is a neighbor SR node */
if (srn->neighbor == OspfSR.self)
hash_iterate(OspfSR.neighbors, update_out_nhlfe, srn);
}
/*
@ -1186,9 +1209,8 @@ void ospf_sr_ri_lsa_delete(struct ospf_lsa *lsa)
struct sr_node *srn;
struct lsa_header *lsah = lsa->data;
osr_debug("SR (%s): Remove SR node %pI4 from lsa_id 4.0.0.%u",
__func__, &lsah->adv_router,
GET_OPAQUE_ID(ntohl(lsah->id.s_addr)));
osr_debug("SR (%s): Remove SR node %pI4 from lsa_id 4.0.0.%u", __func__,
&lsah->adv_router, GET_OPAQUE_ID(ntohl(lsah->id.s_addr)));
/* Sanity check */
if (OspfSR.neighbors == NULL) {
@ -1203,16 +1225,17 @@ void ospf_sr_ri_lsa_delete(struct ospf_lsa *lsa)
/* Sanity check */
if (srn == NULL) {
flog_err(EC_OSPF_SR_NODE_CREATE,
"SR (%s): Abort! no entry in SRDB for SR Node %s",
__func__, inet_ntoa(lsah->adv_router));
"SR (%s): Abort! no entry in SRDB for SR Node %pI4",
__func__, &lsah->adv_router);
return;
}
if ((srn->instance != 0) && (srn->instance != ntohl(lsah->id.s_addr))) {
flog_err(EC_OSPF_SR_INVALID_LSA_ID,
"SR (%s): Abort! Wrong LSA ID 4.0.0.%u for SR node %s",
__func__, GET_OPAQUE_ID(ntohl(lsah->id.s_addr)),
inet_ntoa(lsah->adv_router));
flog_err(
EC_OSPF_SR_INVALID_LSA_ID,
"SR (%s): Abort! Wrong LSA ID 4.0.0.%u for SR node %pI4",
__func__, GET_OPAQUE_ID(ntohl(lsah->id.s_addr)),
&lsah->adv_router);
return;
}
@ -1278,7 +1301,7 @@ void ospf_sr_ext_link_lsa_delete(struct ospf_lsa *lsa)
struct listnode *node;
struct sr_link *srl;
struct sr_node *srn;
struct lsa_header *lsah = (struct lsa_header *)lsa->data;
struct lsa_header *lsah = lsa->data;
uint32_t instance = ntohl(lsah->id.s_addr);
osr_debug("SR (%s): Remove Extended Link LSA 8.0.0.%u from %pI4",
@ -1302,8 +1325,8 @@ void ospf_sr_ext_link_lsa_delete(struct ospf_lsa *lsa)
*/
if (srn == NULL) {
flog_err(EC_OSPF_SR_INVALID_DB,
"SR (%s): Stop! no entry in SRDB for SR Node %s",
__func__, inet_ntoa(lsah->adv_router));
"SR (%s): Stop! no entry in SRDB for SR Node %pI4",
__func__, &lsah->adv_router);
return;
}
@ -1312,18 +1335,13 @@ void ospf_sr_ext_link_lsa_delete(struct ospf_lsa *lsa)
if (srl->instance == instance)
break;
/* Remove Segment Link if found */
/* Remove Segment Link if found. Note that for Neighbors, only Global
* Adj/Lan-Adj SID are stored in the SR-DB */
if ((srl != NULL) && (srl->instance == instance)) {
del_adj_sid(srl->nhlfe[0]);
del_adj_sid(srl->nhlfe[1]);
listnode_delete(srn->ext_link, srl);
XFREE(MTYPE_OSPF_SR_PARAMS, srl);
} else {
flog_err(EC_OSPF_SR_INVALID_DB,
"SR (%s): Didn't found corresponding SR Link 8.0.0.%u "
"for SR Node %s",
__func__, GET_OPAQUE_ID(ntohl(lsah->id.s_addr)),
inet_ntoa(lsah->adv_router));
}
}
@ -1332,7 +1350,7 @@ void ospf_sr_ext_prefix_lsa_update(struct ospf_lsa *lsa)
{
struct sr_node *srn;
struct tlv_header *tlvh;
struct lsa_header *lsah = lsa->data;
struct lsa_header *lsah = (struct lsa_header *)lsa->data;
struct sr_prefix *srp;
uint16_t length, sum;
@ -1409,12 +1427,12 @@ void ospf_sr_ext_prefix_lsa_delete(struct ospf_lsa *lsa)
*/
if (srn == NULL) {
flog_err(EC_OSPF_SR_INVALID_DB,
"SR (%s): Stop! no entry in SRDB for SR Node %s",
__func__, inet_ntoa(lsah->adv_router));
"SR (%s): Stop! no entry in SRDB for SR Node %pI4",
__func__, &lsah->adv_router);
return;
}
/* Search for corresponding Segment Link */
/* Search for corresponding Segment Prefix */
for (ALL_LIST_ELEMENTS_RO(srn->ext_prefix, node, srp))
if (srp->instance == instance)
break;
@ -1427,9 +1445,9 @@ void ospf_sr_ext_prefix_lsa_delete(struct ospf_lsa *lsa)
} else {
flog_err(
EC_OSPF_SR_INVALID_DB,
"SR (%s): Didn't found corresponding SR Prefix 7.0.0.%u for SR Node %s",
"SR (%s): Didn't found corresponding SR Prefix 7.0.0.%u for SR Node %pI4",
__func__, GET_OPAQUE_ID(ntohl(lsah->id.s_addr)),
inet_ntoa(lsah->adv_router));
&lsah->adv_router);
}
}
@ -1469,8 +1487,7 @@ void ospf_sr_update_local_prefix(struct interface *ifp, struct prefix *p)
*/
for (ALL_LIST_ELEMENTS_RO(OspfSR.self->ext_prefix, node, srp)) {
if ((srp->nhlfe.ifindex == ifp->ifindex)
|| ((IPV4_ADDR_SAME(&srp->prefv4.prefix,
&p->u.prefix4))
|| ((IPV4_ADDR_SAME(&srp->prefv4.prefix, &p->u.prefix4))
&& (srp->prefv4.prefixlen == p->prefixlen))) {
/* Update Interface & Prefix info */
@ -1484,14 +1501,15 @@ void ospf_sr_update_local_prefix(struct interface *ifp, struct prefix *p)
srp->instance = ospf_ext_schedule_prefix_index(
ifp, srp->sid, &srp->prefv4, srp->flags);
osr_debug(" |- Update Node SID %pFX - %u for self SR Node",
(struct prefix *)&srp->prefv4, srp->sid);
osr_debug(
" |- Update Node SID %pFX - %u for self SR Node",
(struct prefix *)&srp->prefv4, srp->sid);
/* Install NHLFE if NO-PHP is requested */
if (CHECK_FLAG(srp->flags,
EXT_SUBTLV_PREFIX_SID_NPFLG)) {
srp->label_in = index2label(
srp->sid, OspfSR.self->srgb);
srp->label_in = index2label(srp->sid,
OspfSR.self->srgb);
srp->nhlfe.label_out = MPLS_LABEL_IMPLICIT_NULL;
update_prefix_sid(srp);
}
@ -1567,7 +1585,7 @@ void ospf_sr_update_task(struct ospf *ospf)
osr_debug("SR (%s): SPF Processing Time(usecs): %lld", __func__,
(stop_time.tv_sec - start_time.tv_sec) * 1000000LL
+ (stop_time.tv_usec - start_time.tv_usec));
+ (stop_time.tv_usec - start_time.tv_usec));
}
/*
@ -1913,8 +1931,8 @@ DEFUN (sr_prefix_sid,
new->nhlfe.label_out = MPLS_LABEL_IMPLICIT_NULL;
}
osr_debug("SR (%s): Add new index %u to Prefix %pFX", __func__,
index, (struct prefix *)&new->prefv4);
osr_debug("SR (%s): Add new index %u to Prefix %pFX", __func__, index,
(struct prefix *)&new->prefv4);
/* Get Interface and check if it is a Loopback */
ifp = if_lookup_prefix(&p, VRF_DEFAULT);
@ -1928,7 +1946,8 @@ DEFUN (sr_prefix_sid,
listnode_add(OspfSR.self->ext_prefix, new);
zlog_info(
"Interface for prefix %pFX not found. Deferred LSA "
"flooding", &p);
"flooding",
&p);
return CMD_SUCCESS;
}
@ -2078,8 +2097,7 @@ static void show_sr_prefix(struct sbuf *sbuf, struct json_object *json,
char op[32];
int indent = 0;
snprintf(pref, 19, "%s/%u", inet_ntoa(srp->prefv4.prefix),
srp->prefv4.prefixlen);
snprintfrr(pref, 19, "%pFX", (struct prefix *)&srp->prefv4);
snprintf(sid, 22, "SR Pfx (idx %u)", srp->sid);
if (json) {
json_object_string_add(json, "prefix", pref);
@ -2108,16 +2126,16 @@ static void show_sr_prefix(struct sbuf *sbuf, struct json_object *json,
json_object_array_add(json_route, json_obj);
} else {
sbuf_push(sbuf, 0, "%20s %9s %15s\n",
sr_op2str(op, 32, srp->label_in,
srp->nhlfe.label_out),
itf ? itf->name : "-",
inet_ntoa(srp->nhlfe.nexthop));
sr_op2str(op, 32, srp->label_in,
srp->nhlfe.label_out),
itf ? itf->name : "-",
inet_ntoa(srp->nhlfe.nexthop));
}
return;
}
/* Check if we have a valid path for this prefix */
if (srp->or == NULL) {
if (srp->route == NULL) {
if (!json) {
sbuf_push(sbuf, 0, "\n");
}
@ -2125,17 +2143,17 @@ static void show_sr_prefix(struct sbuf *sbuf, struct json_object *json,
}
/* Process list of OSPF paths */
for (ALL_LIST_ELEMENTS_RO(srp->or->paths, node, path)) {
for (ALL_LIST_ELEMENTS_RO(srp->route->paths, node, path)) {
itf = if_lookup_by_index(path->ifindex, VRF_DEFAULT);
if (json) {
if (!json_route) {
json_route = json_object_new_array();
json_object_object_add(json, "prefixRoute",
json_route);
json_route);
}
json_obj = json_object_new_object();
json_object_int_add(json_obj, "outputLabel",
path->srni.label_out);
path->srni.label_out);
json_object_string_add(json_obj, "interface",
itf ? itf->name : "-");
json_object_string_add(json_obj, "nexthop",
@ -2143,10 +2161,10 @@ static void show_sr_prefix(struct sbuf *sbuf, struct json_object *json,
json_object_array_add(json_route, json_obj);
} else {
sbuf_push(sbuf, indent, "%20s %9s %15s\n",
sr_op2str(op, 32, srp->label_in,
path->srni.label_out),
itf ? itf->name : "-",
inet_ntoa(path->nexthop));
sr_op2str(op, 32, srp->label_in,
path->srni.label_out),
itf ? itf->name : "-",
inet_ntoa(path->nexthop));
/* Offset to align information for ECMP */
indent = 43;
}
@ -2202,15 +2220,15 @@ static void show_sr_node(struct vty *vty, struct json_object *json,
} else {
sbuf_push(&sbuf, 0, "SR-Node: %s", inet_ntoa(srn->adv_router));
sbuf_push(&sbuf, 0, "\tSRGB (Size/Label): %u/%u",
srn->srgb.range_size, srn->srgb.lower_bound);
srn->srgb.range_size, srn->srgb.lower_bound);
sbuf_push(&sbuf, 0, "\tAlgorithm(s): %s",
srn->algo[0] == SR_ALGORITHM_SPF ? "SPF" : "S-SPF");
srn->algo[0] == SR_ALGORITHM_SPF ? "SPF" : "S-SPF");
for (int i = 1; i < ALGORITHM_COUNT; i++) {
if (srn->algo[i] == SR_ALGORITHM_UNSET)
continue;
sbuf_push(&sbuf, 0, "/%s",
srn->algo[i] == SR_ALGORITHM_SPF ? "SPF"
: "S-SPF");
srn->algo[i] == SR_ALGORITHM_SPF ? "SPF"
: "S-SPF");
}
if (srn->msd != 0)
sbuf_push(&sbuf, 0, "\tMSD: %u", srn->msd);
@ -2218,12 +2236,11 @@ static void show_sr_node(struct vty *vty, struct json_object *json,
if (!json) {
sbuf_push(&sbuf, 0,
"\n\n Prefix or Link Node or Adj. SID "
" Label Operation Interface Nexthop\n");
sbuf_push(
&sbuf, 0,
"------------------ --------------------- "
"-------------------- --------- ---------------\n");
"\n\n Prefix or Link Node or Adj. SID "
" Label Operation Interface Nexthop\n");
sbuf_push(&sbuf, 0,
"------------------ --------------------- "
"-------------------- --------- ---------------\n");
}
for (ALL_LIST_ELEMENTS_RO(srn->ext_prefix, node, srp)) {
if (json) {
@ -2242,7 +2259,7 @@ static void show_sr_node(struct vty *vty, struct json_object *json,
}
for (ALL_LIST_ELEMENTS_RO(srn->ext_link, node, srl)) {
snprintf(pref, 19, "%s/32", inet_ntoa(srl->itf_addr));
snprintfrr(pref, 19, "%pI4/32", &srl->itf_addr);
snprintf(sid, 22, "SR Adj. (lbl %u)", srl->sid[0]);
itf = if_lookup_by_index(srl->nhlfe[0].ifindex, VRF_DEFAULT);
if (json) {
@ -2282,18 +2299,18 @@ static void show_sr_node(struct vty *vty, struct json_object *json,
json_object_array_add(json_link, json_obj);
} else {
sbuf_push(&sbuf, 0, "%18s %21s %20s %9s %15s\n",
pref, sid, sr_op2str(op, 32,
srl->nhlfe[0].label_in,
srl->nhlfe[0].label_out),
itf ? itf->name : "-",
inet_ntoa(srl->nhlfe[0].nexthop));
pref, sid,
sr_op2str(op, 32, srl->nhlfe[0].label_in,
srl->nhlfe[0].label_out),
itf ? itf->name : "-",
inet_ntoa(srl->nhlfe[0].nexthop));
snprintf(sid, 22, "SR Adj. (lbl %u)", srl->sid[1]);
sbuf_push(&sbuf, 0, "%18s %21s %20s %9s %15s\n",
pref, sid, sr_op2str(op, 32,
srl->nhlfe[1].label_in,
srl->nhlfe[1].label_out),
itf ? itf->name : "-",
inet_ntoa(srl->nhlfe[1].nexthop));
pref, sid,
sr_op2str(op, 32, srl->nhlfe[1].label_in,
srl->nhlfe[1].label_out),
itf ? itf->name : "-",
inet_ntoa(srl->nhlfe[1].nexthop));
}
}
if (json)

View File

@ -291,7 +291,7 @@ struct sr_prefix {
mpls_label_t label_in;
/* Back pointer to OSPF Route for remote prefix */
struct ospf_route *or;
struct ospf_route *route;
/* NHLFE for local prefix */
struct sr_nhlfe nhlfe;
@ -315,7 +315,8 @@ extern void ospf_sr_ext_prefix_lsa_delete(struct ospf_lsa *lsa);
/* Segment Routing configuration functions */
extern uint32_t get_ext_link_label_value(void);
extern void ospf_sr_config_write_router(struct vty *vty);
extern void ospf_sr_update_local_prefix(struct interface *ifp, struct prefix *p);
extern void ospf_sr_update_local_prefix(struct interface *ifp,
struct prefix *p);
/* Segment Routing re-routing function */
extern void ospf_sr_update_task(struct ospf *ospf);
#endif /* _FRR_OSPF_SR_H */

View File

@ -1351,6 +1351,7 @@ void ospf_zebra_vrf_deregister(struct ospf *ospf)
zclient_send_dereg_requests(zclient, ospf->vrf_id);
}
}
static void ospf_zebra_connected(struct zclient *zclient)
{
/* Send the client registration */