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bgpd: display link-state prefixes detail

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BGP link-state prefixes are displayed in the form of NLRI-TYPE /
Prefix-Length.

> r2# show bgp all
>
> For address family: Link State
> BGP table version is 8, local router ID is 192.0.2.2, vrf id 0
> Default local pref 100, local AS 65002
>     Network          Next Hop            Metric LocPrf Weight Path
>  *> Link/153                                0 65001 i
>  *> IPv6-Prefix/77                          0 65001 i
>  *> IPv4-Prefix/57                          0 65001 i
>  *> Node/49                                 0 65001 i
>  *> Node/45                                 0 65001 i

Add a lib prefix display hook in bgpd to display properly all the details.

> r2# show bgp all
>
> For address family: Link State
> BGP table version is 8, local router ID is 192.0.2.2, vrf id 0
> Default local pref 100, local AS 65002
>     Network          Next Hop            Metric LocPrf Weight Path
>  *> Link OSPFv3 ID:0xffffffffffffffff {Local {AS:4294967295 ID:4294967295 Area:4294967295 Rtr:10.10.10.11:2.2.2.2} Remote {AS:4294967295 ID:4294967295 Area:4294967295 Rtr:10.10.10.10:1.1.1.1} IPv4:10.1.0.1 Neigh-IPv4:10.1.0.2 IPv6:2001::1 Neigh-IPv6:2001::2 MT:0,2}/153
>                                            0 65001 i
>  *> IPv6-Prefix OSPFv3 ID:0x20 {Local {AS:65001 ID:0 Area:0 Rtr:10.10.10.10} MT:2 OSPF-Route-Type:1 IPv6:12:12::12:12/128}/77
>                                            0 65001 i
>  *> IPv4-Prefix OSPFv2 ID:0x20 {Local {AS:65001 ID:0 Area:0 Rtr:10.10.10.10:1.1.1.1} IPv4:89.10.11.0/24}/57
>                                            0 65001 i
>  *> Node OSPFv2 ID:0x20 {Local {AS:65001 ID:0 Area:0 Rtr:10.10.10.10:1.1.1.1}}/49
>                                            0 65001 i
>  *> Node OSPFv2 ID:0x20 {Local {AS:65001 ID:0 Area:0 Rtr:10.10.10.10}}/45
>                                            0 65001 i

Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
This commit is contained in:
Louis Scalbert 2023-04-21 12:04:08 +02:00
parent 3098772467
commit 7e0d9ff8ba
7 changed files with 753 additions and 0 deletions
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21
bgpd/bgp_linkstate.c Normal file
View File

@ -0,0 +1,21 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/* BGP Link-State
* Copyright 2023 6WIND S.A.
*/
#include <zebra.h>
#include "prefix.h"
#include "lib_errors.h"
#include "bgpd/bgpd.h"
#include "bgpd/bgp_route.h"
#include "bgpd/bgp_debug.h"
#include "bgpd/bgp_errors.h"
#include "bgpd/bgp_linkstate.h"
#include "bgpd/bgp_linkstate_tlv.h"
void bgp_linkstate_init(void)
{
prefix_set_linkstate_display_hook(bgp_linkstate_nlri_prefix_display);
}

10
bgpd/bgp_linkstate.h Normal file
View File

@ -0,0 +1,10 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/* BGP Link-State header
* Copyright 2023 6WIND S.A.
*/
#ifndef _FRR_BGP_LINKSTATE_H
#define _FRR_BGP_LINKSTATE_H
void bgp_linkstate_init(void);
#endif /* _FRR_BGP_LINKSTATE_H */

495
bgpd/bgp_linkstate_tlv.c
View File

@ -5,6 +5,8 @@
#include <zebra.h> #include <zebra.h>
#include "iso.h"
#include "bgpd/bgpd.h" #include "bgpd/bgpd.h"
#include "bgpd/bgp_route.h" #include "bgpd/bgp_route.h"
#include "bgpd/bgp_debug.h" #include "bgpd/bgp_debug.h"
@ -12,6 +14,70 @@
#include "bgpd/bgp_linkstate_tlv.h" #include "bgpd/bgp_linkstate_tlv.h"
static bool bgp_linkstate_nlri_value_display(char *buf, size_t size,
uint8_t *pnt, uint16_t nlri_type,
uint16_t type, uint16_t length,
bool first, json_object *json);
struct bgp_linkstate_tlv_info {
const char *descr;
uint8_t min_size;
uint16_t max_size;
uint8_t multiple;
};
#define UNDEF_MIN_SZ 0xFF
#define MAX_SZ 0xFFFF
#define UNDEF_MULTPL 1
/* clang-format off */
struct bgp_linkstate_tlv_info bgp_linkstate_tlv_infos[BGP_LS_TLV_MAX] = {
/* NLRI TLV */
[BGP_LS_TLV_LOCAL_NODE_DESCRIPTORS] = {"Local Node Descriptors", 1, MAX_SZ, UNDEF_MULTPL},
[BGP_LS_TLV_REMOTE_NODE_DESCRIPTORS] = {"Remote Node Descriptors", 1, MAX_SZ, UNDEF_MULTPL},
[BGP_LS_TLV_LINK_LOCAL_REMOTE_IDENTIFIERS] = {"Link Local/Remote Identifiers", 2, 2, UNDEF_MULTPL},
[BGP_LS_TLV_IPV4_INTERFACE_ADDRESS] = {"IPv4 interface address", 4, 4, UNDEF_MULTPL},
[BGP_LS_TLV_IPV4_NEIGHBOR_ADDRESS] = {"IPv4 neighbor address", 4, 4, UNDEF_MULTPL},
[BGP_LS_TLV_IPV6_INTERFACE_ADDRESS] = {"IPv6 interface address", 16, 16, UNDEF_MULTPL},
[BGP_LS_TLV_IPV6_NEIGHBOR_ADDRESS] = {"IPv6 neighbor address", 16, 16, UNDEF_MULTPL},
[BGP_LS_TLV_OSPF_ROUTE_TYPE] = {"OSPF Route Type", 1, 1, UNDEF_MULTPL},
[BGP_LS_TLV_IP_REACHABILITY_INFORMATION] = {"IP Reachability Information", 2, 17, UNDEF_MULTPL},
[BGP_LS_TLV_AUTONOMOUS_SYSTEM] = {"Autonomous System", 4, 4, UNDEF_MULTPL},
[BGP_LS_TLV_BGP_LS_IDENTIFIER] = {"BGP-LS Identifier", 4, 4, UNDEF_MULTPL},
[BGP_LS_TLV_OSPF_AREA_ID] = {"OSPF Area-ID", 4, 4, UNDEF_MULTPL},
[BGP_LS_TLV_IGP_ROUTER_ID] = {"IGP Router-ID", 4, 8, UNDEF_MULTPL},
/* NRLI & BGP-LS Attributes */
[BGP_LS_TLV_MULTI_TOPOLOGY_ID] = {"Multi-Topology ID", 2, MAX_SZ, 2},
};
/* clang-format on */
/* Return the TLV length is valid for the TLV type */
static bool bgp_ls_tlv_check_size(enum bgp_linkstate_tlv type, size_t length)
{
if (type > BGP_LS_TLV_MAX ||
bgp_linkstate_tlv_infos[type].descr == NULL)
/* TLV type is not defined. Cannot check size */
return false;
if (bgp_linkstate_tlv_infos[type].min_size > length)
return false;
if (bgp_linkstate_tlv_infos[type].max_size < length)
return false;
if (length % bgp_linkstate_tlv_infos[type].multiple != 0)
return false;
return true;
}
static uint8_t pnt_decode8(uint8_t **pnt)
{
uint8_t data;
data = **pnt;
*pnt += 1;
return data;
}
static uint16_t pnt_decode16(uint8_t **pnt) static uint16_t pnt_decode16(uint8_t **pnt)
{ {
uint16_t data; uint16_t data;
@ -21,6 +87,45 @@ static uint16_t pnt_decode16(uint8_t **pnt)
return data; return data;
} }
static uint32_t pnt_decode32(uint8_t **pnt)
{
uint32_t data;
*pnt = (uint8_t *)ptr_get_be32(*pnt, &data);
return data;
}
static uint64_t pnt_decode64(uint8_t **pnt)
{
uint64_t data;
*pnt = (uint8_t *)ptr_get_be64(*pnt, &data);
return data;
}
static const char *bgp_ls_print_nlri_proto(enum bgp_ls_nlri_proto proto)
{
switch (proto) {
case BGP_LS_NLRI_PROTO_ID_IS_IS_LEVEL_1:
return "ISIS-L1";
case BGP_LS_NLRI_PROTO_ID_IS_IS_LEVEL_2:
return "ISIS-L2";
case BGP_LS_NLRI_PROTO_ID_OSPF:
return "OSPFv2";
case BGP_LS_NLRI_PROTO_ID_DIRECT:
return "Direct";
case BGP_LS_NLRI_PROTO_ID_STATIC:
return "Static";
case BGP_LS_NLRI_PROTO_ID_OSPFv3:
return "OSPFv3";
case BGP_LS_NLRI_PROTO_ID_UNKNOWN:
return "Unknown";
}
return "Unknown";
}
int bgp_nlri_parse_linkstate(struct peer *peer, struct attr *attr, int bgp_nlri_parse_linkstate(struct peer *peer, struct attr *attr,
struct bgp_nlri *packet, int withdraw) struct bgp_nlri *packet, int withdraw)
{ {
@ -85,3 +190,393 @@ void bgp_nlri_encode_linkstate(struct stream *s, const struct prefix *p)
stream_put(s, (const void *)p->u.prefix_linkstate.ptr, p->prefixlen); stream_put(s, (const void *)p->u.prefix_linkstate.ptr, p->prefixlen);
} }
static size_t bgp_linkstate_nlri_hexa_display(char *buf, size_t size,
uint8_t *pnt, uint16_t type,
uint16_t length, bool first,
json_object *json)
{
json_object *json_array = NULL;
uint8_t *lim = pnt + length;
char json_buf[19];
int i;
if (json) {
snprintf(json_buf, sizeof(json_buf), "%u", type);
json_array = json_object_new_array();
json_object_object_add(json, json_buf, json_array);
for (i = 0; pnt < lim; pnt++, i++) {
if (i % 8 == 0) {
if (i != 0)
json_object_array_add(
json_array,
json_object_new_string(
json_buf));
snprintf(json_buf, sizeof(buf), "0x");
}
snprintf(json_buf + strlen(json_buf),
sizeof(json_buf) - strlen(json_buf), "%02x",
*pnt);
}
if (strlen(json_buf) > 2) /* do not only contain 0x */
json_object_array_add(json_array,
json_object_new_string(json_buf));
return size;
}
snprintf(buf, size, "%s%u:", first ? "" : " ", type);
size -= strlen(buf);
buf += strlen(buf);
snprintf(buf, size, "0x");
size -= strlen(buf);
buf += strlen(buf);
for (i = 0; pnt < lim; pnt++, i++) {
snprintf(buf, size, "%02x", *pnt);
size -= strlen(buf);
buf += strlen(buf);
}
return size;
}
static void bgp_linkstate_nlri_mtid_display(char *buf, size_t size,
uint8_t *pnt, uint16_t type,
uint16_t length, bool first,
json_object *json)
{
json_object *json_array = NULL;
if (json) {
json_array = json_object_new_array();
json_object_object_add(json, "mtID", json_array);
for (int i = 0; i < (length / 2); i++) {
json_object_array_add(
json_array,
json_object_new_int(pnt_decode16(&pnt)));
}
return;
}
for (int i = 0; i < (length / 2); i++) {
if (i == 0)
snprintf(buf, size, "%sMT:%hu", first ? "" : " ",
pnt_decode16(&pnt));
else
snprintf(buf, size, ",%hu", pnt_decode16(&pnt));
size -= strlen(buf);
buf += strlen(buf);
}
}
static bool bgp_linkstate_nlri_node_descriptor_display(
char *buf, size_t size, uint8_t *pnt, uint16_t nlri_type, uint16_t type,
uint16_t length, bool first, json_object *json)
{
json_object *json_node = NULL;
bool sub_first = true;
uint8_t *lim = pnt + length;
uint16_t sub_type, sub_length;
if (json) {
json_node = json_object_new_object();
if (type == BGP_LS_TLV_LOCAL_NODE_DESCRIPTORS)
json_object_object_add(json, "localNode", json_node);
else
json_object_object_add(json, "remoteNode", json_node);
} else {
if (type == BGP_LS_TLV_LOCAL_NODE_DESCRIPTORS)
snprintf(buf, size, "%sLocal {", first ? "" : " ");
else
snprintf(buf, size, "%sRemote {", first ? "" : " ");
size -= strlen(buf);
buf += strlen(buf);
}
for (; pnt < lim; pnt += sub_length) {
sub_type = pnt_decode16(&pnt);
sub_length = pnt_decode16(&pnt);
if (pnt + sub_length > lim)
/* bad length */
return false;
bgp_linkstate_nlri_value_display(buf, size, pnt, nlri_type,
sub_type, sub_length,
sub_first, json_node);
if (!json) {
size -= strlen(buf);
buf += strlen(buf);
sub_first = false;
}
}
if (!json)
snprintf(buf, size, "}");
return true;
}
static bool bgp_linkstate_nlri_value_display(char *buf, size_t size,
uint8_t *pnt, uint16_t nlri_type,
uint16_t type, uint16_t length,
bool first, json_object *json)
{
struct in_addr ipv4 = {0};
struct in6_addr ipv6 = {0};
uint8_t mask_length;
if (!bgp_ls_tlv_check_size(type, length) && !json) {
bgp_linkstate_nlri_hexa_display(buf, size, pnt, type, length,
first, json);
return true;
}
switch (type) {
case BGP_LS_TLV_LOCAL_NODE_DESCRIPTORS:
case BGP_LS_TLV_REMOTE_NODE_DESCRIPTORS:
return bgp_linkstate_nlri_node_descriptor_display(
buf, size, pnt, nlri_type, type, length, first, json);
case BGP_LS_TLV_AUTONOMOUS_SYSTEM:
if (json)
json_object_int_add(json, "as", pnt_decode32(&pnt));
else
snprintf(buf, size, "%sAS:%u", first ? "" : " ",
pnt_decode32(&pnt));
break;
case BGP_LS_TLV_BGP_LS_IDENTIFIER:
if (json)
json_object_int_add(json, "identifier",
pnt_decode32(&pnt));
else
snprintf(buf, size, "%sID:%u", first ? "" : " ",
pnt_decode32(&pnt));
break;
case BGP_LS_TLV_OSPF_AREA_ID:
if (json)
json_object_int_add(json, "area", pnt_decode32(&pnt));
else
snprintf(buf, size, "%sArea:%u", first ? "" : " ",
pnt_decode32(&pnt));
break;
case BGP_LS_TLV_IGP_ROUTER_ID:
switch (length) {
case BGP_LS_TLV_IGP_ROUTER_ID_ISIS_NON_PSEUDOWIRE_SIZE:
if (json)
json_object_string_addf(json, "routerID",
"%pSY", pnt);
else
snprintfrr(buf, size, "%sRtr:%pSY",
first ? "" : " ", pnt);
break;
case BGP_LS_TLV_IGP_ROUTER_ID_ISIS_PSEUDOWIRE_SIZE:
if (json)
json_object_string_addf(json, "routerID",
"%pPN", pnt);
else
snprintfrr(buf, size, "%sRtr:%pPN",
first ? "" : " ", pnt);
break;
case BGP_LS_TLV_IGP_ROUTER_ID_OSPF_NON_PSEUDOWIRE_SIZE:
if (json)
json_object_string_addf(json, "routerID",
"%pI4",
(in_addr_t *)pnt);
else
snprintfrr(buf, size, "%sRtr:%pI4",
first ? "" : " ", (in_addr_t *)pnt);
break;
case BGP_LS_TLV_IGP_ROUTER_ID_OSPF_PSEUDOWIRE_SIZE:
if (json)
json_object_string_addf(json, "routerID",
"%pI4:%pI4",
(in_addr_t *)pnt,
((in_addr_t *)pnt + 1));
else
snprintfrr(buf, size, "%sRtr:%pI4:%pI4",
first ? "" : " ", (in_addr_t *)pnt,
((in_addr_t *)pnt + 1));
break;
default:
bgp_linkstate_nlri_hexa_display(buf, size, pnt, type,
length, first, json);
}
break;
case BGP_LS_TLV_LINK_LOCAL_REMOTE_IDENTIFIERS:
if (json)
json_object_int_add(json, "localRemoteID",
pnt_decode16(&pnt));
else
snprintf(buf, size, "%sLocal/remote:%hu",
first ? "" : " ", pnt_decode16(&pnt));
break;
case BGP_LS_TLV_IPV4_INTERFACE_ADDRESS:
if (json)
json_object_string_addf(json, "interfaceIPv4", "%pI4",
(in_addr_t *)pnt);
else
snprintfrr(buf, size, "%sIPv4:%pI4", first ? "" : " ",
(in_addr_t *)pnt);
break;
case BGP_LS_TLV_IPV4_NEIGHBOR_ADDRESS:
if (json)
json_object_string_addf(json, "neighborIPv4", "%pI4",
(in_addr_t *)pnt);
else
snprintfrr(buf, size, "%sNeigh-IPv4:%pI4",
first ? "" : " ", (in_addr_t *)pnt);
break;
case BGP_LS_TLV_IPV6_INTERFACE_ADDRESS:
if (json)
json_object_string_addf(json, "interfaceIPv6", "%pI6",
(struct in6_addr *)pnt);
else
snprintfrr(buf, size, "%sIPv6:%pI6", first ? "" : " ",
(struct in6_addr *)pnt);
break;
case BGP_LS_TLV_IPV6_NEIGHBOR_ADDRESS:
if (json)
json_object_string_addf(json, "neighborIPv6", "%pI6",
(struct in6_addr *)pnt);
else
snprintfrr(buf, size, "%sNeigh-IPv6:%pI6",
first ? "" : " ", (struct in6_addr *)pnt);
break;
case BGP_LS_TLV_MULTI_TOPOLOGY_ID:
bgp_linkstate_nlri_mtid_display(buf, size, pnt, type, length,
first, json);
break;
case BGP_LS_TLV_OSPF_ROUTE_TYPE:
if (json)
json_object_int_add(json, "ospfRouteType",
pnt_decode8(&pnt));
else
snprintf(buf, size, "%sOSPF-Route-Type:%u",
first ? "" : " ", pnt_decode8(&pnt));
break;
case BGP_LS_TLV_IP_REACHABILITY_INFORMATION:
mask_length = pnt_decode8(&pnt);
if (nlri_type == BGP_LINKSTATE_PREFIX4) {
memcpy(&ipv4.s_addr, pnt, length - sizeof(mask_length));
if (json)
json_object_string_addf(json, "ipReachability",
"%pI4/%u", &ipv4,
mask_length);
else
snprintfrr(buf, size, "%sIPv4:%pI4/%u",
first ? "" : " ", &ipv4,
mask_length);
} else if (nlri_type == BGP_LINKSTATE_PREFIX6) {
memcpy(&ipv6, pnt, length - sizeof(mask_length));
if (json)
json_object_string_addf(json, "ipReachability",
"%pI6/%u", &ipv6,
mask_length);
else
snprintfrr(buf, size, "%sIPv6:%pI6/%u",
first ? "" : " ", &ipv6,
mask_length);
} else
bgp_linkstate_nlri_hexa_display(buf, size, pnt, type,
length, first, json);
break;
default:
bgp_linkstate_nlri_hexa_display(buf, size, pnt, type, length,
first, json);
}
return true;
}
char *bgp_linkstate_nlri_prefix_display(char *buf, size_t size,
uint16_t nlri_type, uintptr_t ptr,
uint16_t len)
{
uint8_t *pnt = (uint8_t *)ptr;
uint8_t *lim = pnt + len;
uint16_t type, length;
char *cbuf = buf, *cbuf2;
uint8_t proto;
bool ret;
bool first = true;
proto = pnt_decode8(&pnt);
snprintfrr(buf, size, "%s %s ID:0x%" PRIx64 " {",
bgp_linkstate_nlri_type_2str(nlri_type),
bgp_ls_print_nlri_proto(proto), pnt_decode64(&pnt));
size -= strlen(buf);
buf += strlen(buf);
cbuf2 = buf;
for (; pnt < lim; pnt += length) {
type = pnt_decode16(&pnt);
length = pnt_decode16(&pnt);
if (pnt + length > lim) {
/* bad length */
snprintf(cbuf2, size, "Bad format}");
return cbuf;
}
ret = bgp_linkstate_nlri_value_display(
buf, size, pnt, nlri_type, type, length, first, NULL);
if (!ret) {
/* bad length */
snprintf(cbuf2, size, "Bad format}");
return cbuf;
}
size -= strlen(buf);
buf += strlen(buf);
first = false;
}
snprintf(buf, size, "}");
return cbuf;
}
void bgp_linkstate_nlri_prefix_json(json_object *json, uint16_t nlri_type,
uintptr_t ptr, uint16_t len)
{
json_object *json_nlri = json_object_new_object();
uint8_t *pnt = (uint8_t *)ptr;
uint8_t *lim = pnt + len;
uint16_t type, length;
uint8_t proto;
bool ret;
proto = pnt_decode8(&pnt);
json_object_object_add(json, "linkStateNLRI", json_nlri);
json_object_string_add(json_nlri, "nlriType",
bgp_linkstate_nlri_type_2str(nlri_type));
json_object_string_add(json_nlri, "protocol",
bgp_ls_print_nlri_proto(proto));
json_object_string_addf(json_nlri, "identifier", "0x%" PRIx64,
pnt_decode64(&pnt));
for (; pnt < lim; pnt += length) {
type = pnt_decode16(&pnt);
length = pnt_decode16(&pnt);
if (pnt + length > lim)
/* bad length */
return;
ret = bgp_linkstate_nlri_value_display(NULL, 0, pnt, nlri_type,
type, length, false,
json_nlri);
if (!ret)
/* bad length */
return;
}
}

210
bgpd/bgp_linkstate_tlv.h
View File

@ -6,8 +6,218 @@
#ifndef BGP_LINKSTATE_TLV_H #ifndef BGP_LINKSTATE_TLV_H
#define BGP_LINKSTATE_TLV_H #define BGP_LINKSTATE_TLV_H
/* RFC7752 Link-State NLRI Protocol-ID values
* +-------------+----------------------------------+
* | Protocol-ID | NLRI information source protocol |
* +-------------+----------------------------------+
* | 1 | IS-IS Level 1 |
* | 2 | IS-IS Level 2 |
* | 3 | OSPFv2 |
* | 4 | Direct |
* | 5 | Static configuration |
* | 6 | OSPFv3 |
* +-------------+----------------------------------+
*/
enum bgp_ls_nlri_proto {
BGP_LS_NLRI_PROTO_ID_UNKNOWN = 0,
BGP_LS_NLRI_PROTO_ID_IS_IS_LEVEL_1 = 1,
BGP_LS_NLRI_PROTO_ID_IS_IS_LEVEL_2 = 2,
BGP_LS_NLRI_PROTO_ID_OSPF = 3,
BGP_LS_NLRI_PROTO_ID_DIRECT = 4,
BGP_LS_NLRI_PROTO_ID_STATIC = 5,
BGP_LS_NLRI_PROTO_ID_OSPFv3 = 6,
};
/*
* List of BGP Link-State TLVs extracted from
* https://www.iana.org/assignments/bgp-ls-parameters/bgp-ls-parameters.xhtml#node-descriptor-link-descriptor-prefix-descriptor-attribute-tlv
*
* Retrieved on 2023-01-03
*
* The following bash command was used to convert the list:
* sed -e 's| (.\+)||g' tmp \
* | awk -F'\t' '($1 ~ /^[0-9]+$/) {gsub(/(\/|-| |\.)/,"_",$2); printf
* "\tBGP_LS_TLV_"toupper($2)" = "$1", \/\* "$4" \*\/\n"}' \
* | grep -v UNASSIGNED \
* | sed -e 's/\[//g;s/\]//g'
*
*/
enum bgp_linkstate_tlv {
BGP_LS_TLV_LOCAL_NODE_DESCRIPTORS = 256, /* RFC7752, Section 3.2.1.2 */
BGP_LS_TLV_REMOTE_NODE_DESCRIPTORS = 257, /* RFC7752, Section 3.2.1.3 */
BGP_LS_TLV_LINK_LOCAL_REMOTE_IDENTIFIERS =
258, /* RFC5307, Section 1.1 */
BGP_LS_TLV_IPV4_INTERFACE_ADDRESS = 259, /* RFC5305, Section 3.2 */
BGP_LS_TLV_IPV4_NEIGHBOR_ADDRESS = 260, /* RFC5305, Section 3.3 */
BGP_LS_TLV_IPV6_INTERFACE_ADDRESS = 261, /* RFC6119, Section 4.2 */
BGP_LS_TLV_IPV6_NEIGHBOR_ADDRESS = 262, /* RFC6119, Section 4.3 */
BGP_LS_TLV_MULTI_TOPOLOGY_ID = 263, /* RFC7752, Section 3.2.1.5 */
BGP_LS_TLV_OSPF_ROUTE_TYPE = 264, /* RFC7752, Section 3.2.3 */
BGP_LS_TLV_IP_REACHABILITY_INFORMATION =
265, /* RFC7752, Section 3.2.3 */
BGP_LS_TLV_NODE_MSD = 266, /* RFC8814 */
BGP_LS_TLV_LINK_MSD = 267, /* RFC8814 */
BGP_LS_TLV_AUTONOMOUS_SYSTEM = 512, /* RFC7752, Section 3.2.1.4 */
BGP_LS_TLV_BGP_LS_IDENTIFIER = 513, /* RFC7752, Section 3.2.1.4 */
BGP_LS_TLV_OSPF_AREA_ID = 514, /* RFC7752, Section 3.2.1.4 */
BGP_LS_TLV_IGP_ROUTER_ID = 515, /* RFC7752, Section 3.2.1.4 */
BGP_LS_TLV_BGP_ROUTER_ID = 516, /* RFC9086 */
BGP_LS_TLV_BGP_CONFEDERATION_MEMBER = 517, /* RFC9086 */
BGP_LS_TLV_SRV6_SID_INFORMATION_TLV =
518, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_TUNNEL_ID_TLV =
550, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_LSP_ID_TLV = 551, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_IPV4_6_TUNNEL_HEAD_END_ADDRESS_TLV =
552, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_IPV4_6_TUNNEL_TAIL_END_ADDRESS_TLV =
553, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_POLICY_CP_DESCRIPTOR_TLV =
554, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_MPLS_LOCAL_CROSS_CONNECT_TLV =
555, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_MPLS_CROSS_CONNECT_INTERFACE_TLV =
556, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_MPLS_CROSS_CONNECT_FEC_TLV =
557, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_NODE_FLAG_BITS = 1024, /* RFC7752, Section 3.3.1.1 */
BGP_LS_TLV_OPAQUE_NODE_ATTRIBUTE = 1025, /* RFC7752, Section 3.3.1.5 */
BGP_LS_TLV_NODE_NAME = 1026, /* RFC7752, Section 3.3.1.3 */
BGP_LS_TLV_IS_IS_AREA_IDENTIFIER = 1027, /* RFC7752, Section 3.3.1.2 */
BGP_LS_TLV_IPV4_ROUTER_ID_OF_LOCAL_NODE =
1028, /* RFC5305, Section 4.3 */
BGP_LS_TLV_IPV6_ROUTER_ID_OF_LOCAL_NODE =
1029, /* RFC6119, Section 4.1 */
BGP_LS_TLV_IPV4_ROUTER_ID_OF_REMOTE_NODE =
1030, /* RFC5305, Section 4.3 */
BGP_LS_TLV_IPV6_ROUTER_ID_OF_REMOTE_NODE =
1031, /* RFC6119, Section 4.1 */
BGP_LS_TLV_S_BFD_DISCRIMINATORS = 1032, /* RFC9247 */
BGP_LS_TLV_UNASSIGNED = 1033, /* */
BGP_LS_TLV_SR_CAPABILITIES = 1034, /* RFC9085, Section 2.1.2 */
BGP_LS_TLV_SR_ALGORITHM = 1035, /* RFC9085, Section 2.1.3 */
BGP_LS_TLV_SR_LOCAL_BLOCK = 1036, /* RFC9085, Section 2.1.4 */
BGP_LS_TLV_SRMS_PREFERENCE = 1037, /* RFC9085, Section 2.1.5 */
BGP_LS_TLV_SRV6_CAPABILITIES_TLV =
1038, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_FLEXIBLE_ALGORITHM_DEFINITION = 1039, /* RFC9351 */
BGP_LS_TLV_FLEXIBLE_ALGORITHM_EXCLUDE_ANY_AFFINITY = 1040, /* RFC9351 */
BGP_LS_TLV_FLEXIBLE_ALGORITHM_INCLUDE_ANY_AFFINITY = 1041, /* RFC9351 */
BGP_LS_TLV_FLEXIBLE_ALGORITHM_INCLUDE_ALL_AFFINITY = 1042, /* RFC9351 */
BGP_LS_TLV_FLEXIBLE_ALGORITHM_DEFINITION_FLAGS = 1043, /* RFC9351 */
BGP_LS_TLV_FLEXIBLE_ALGORITHM_PREFIX_METRIC = 1044, /* RFC9351 */
BGP_LS_TLV_FLEXIBLE_ALGORITHM_EXCLUDE_SRLG = 1045, /* RFC9351 */
BGP_LS_TLV_FLEXIBLE_ALGORITHM_UNSUPPORTED = 1046, /* RFC9351 */
BGP_LS_TLV_ADMINISTRATIVE_GROUP = 1088, /* RFC5305, Section 3.1 */
BGP_LS_TLV_MAXIMUM_LINK_BANDWIDTH = 1089, /* RFC5305, Section 3.4 */
BGP_LS_TLV_MAX_RESERVABLE_LINK_BANDWIDTH =
1090, /* RFC5305, Section 3.5 */
BGP_LS_TLV_UNRESERVED_BANDWIDTH = 1091, /* RFC5305, Section 3.6 */
BGP_LS_TLV_TE_DEFAULT_METRIC = 1092, /* RFC7752, Section 3.3.2.3 */
BGP_LS_TLV_LINK_PROTECTION_TYPE = 1093, /* RFC5307, Section 1.2 */
BGP_LS_TLV_MPLS_PROTOCOL_MASK = 1094, /* RFC7752, Section 3.3.2.2 */
BGP_LS_TLV_IGP_METRIC = 1095, /* RFC7752, Section 3.3.2.4 */
BGP_LS_TLV_SHARED_RISK_LINK_GROUP = 1096, /* RFC7752, Section 3.3.2.5 */
BGP_LS_TLV_OPAQUE_LINK_ATTRIBUTE = 1097, /* RFC7752, Section 3.3.2.6 */
BGP_LS_TLV_LINK_NAME = 1098, /* RFC7752, Section 3.3.2.7 */
BGP_LS_TLV_ADJACENCY_SID = 1099, /* RFC9085, Section 2.2.1 */
BGP_LS_TLV_LAN_ADJACENCY_SID = 1100, /* RFC9085, Section 2.2.2 */
BGP_LS_TLV_PEERNODE_SID = 1101, /* RFC9086 */
BGP_LS_TLV_PEERADJ_SID = 1102, /* RFC9086 */
BGP_LS_TLV_PEERSET_SID = 1103, /* RFC9086 */
BGP_LS_TLV_RTM_CAPABILITY = 1105, /* RFC8169 */
BGP_LS_TLV_SRV6_END_X_SID_TLV =
1106, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_IS_IS_SRV6_LAN_END_X_SID_TLV =
1107, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_OSPFV3_SRV6_LAN_END_X_SID_TLV =
1108, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_UNIDIRECTIONAL_LINK_DELAY = 1114, /* RFC8571 */
BGP_LS_TLV_MIN_MAX_UNIDIRECTIONAL_LINK_DELAY = 1115, /* RFC8571 */
BGP_LS_TLV_UNIDIRECTIONAL_DELAY_VARIATION = 1116, /* RFC8571 */
BGP_LS_TLV_UNIDIRECTIONAL_LINK_LOSS = 1117, /* RFC8571 */
BGP_LS_TLV_UNIDIRECTIONAL_RESIDUAL_BANDWIDTH = 1118, /* RFC8571 */
BGP_LS_TLV_UNIDIRECTIONAL_AVAILABLE_BANDWIDTH = 1119, /* RFC8571 */
BGP_LS_TLV_UNIDIRECTIONAL_UTILIZED_BANDWIDTH = 1120, /* RFC8571 */
BGP_LS_TLV_GRACEFUL_LINK_SHUTDOWN_TLV = 1121, /* RFC8379 */
BGP_LS_TLV_APPLICATION_SPECIFIC_LINK_ATTRIBUTES = 1122, /* RFC9294 */
BGP_LS_TLV_IGP_FLAGS = 1152, /* RFC7752, Section 3.3.3.1 */
BGP_LS_TLV_IGP_ROUTE_TAG = 1153, /* RFC5130 */
BGP_LS_TLV_IGP_EXTENDED_ROUTE_TAG = 1154, /* RFC5130 */
BGP_LS_TLV_PREFIX_METRIC = 1155, /* RFC5305 */
BGP_LS_TLV_OSPF_FORWARDING_ADDRESS = 1156, /* RFC2328 */
BGP_LS_TLV_OPAQUE_PREFIX_ATTRIBUTE =
1157, /* RFC7752, Section 3.3.3.6 */
BGP_LS_TLV_PREFIX_SID = 1158, /* RFC9085, Section 2.3.1 */
BGP_LS_TLV_RANGE = 1159, /* RFC9085, Section 2.3.5 */
BGP_LS_TLV_IS_IS_FLOOD_REFLECTION =
1160, /* draft-ietf-idr-bgp-ls-isis-flood-reflection-02 */
BGP_LS_TLV_SID_LABEL = 1161, /* RFC9085, Section 2.1.1 */
BGP_LS_TLV_SRV6_LOCATOR_TLV =
1162, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_PREFIX_ATTRIBUTES_FLAGS = 1170, /* RFC9085, Section 2.3.2 */
BGP_LS_TLV_SOURCE_ROUTER_IDENTIFIER = 1171, /* RFC9085, Section 2.3.3 */
BGP_LS_TLV_L2_BUNDLE_MEMBER_ATTRIBUTES =
1172, /* RFC9085, Section 2.2.3 */
BGP_LS_TLV_EXTENDED_ADMINISTRATIVE_GROUP = 1173, /* RFC9104 */
BGP_LS_TLV_SOURCE_OSPF_ROUTER_ID = 1174, /* RFC9085, Section 2.3.4 */
BGP_LS_TLV_MPLS_TE_POLICY_STATE_TLV =
1200, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_BSID_TLV =
1201, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_CP_STATE_TLV =
1202, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_CP_NAME_TLV =
1203, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_CP_CONSTRAINTS_TLV =
1204, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_SEGMENT_LIST_TLV =
1205, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_SEGMENT_SUB_TLV =
1206, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_SEGMENT_LIST_METRIC_SUB_TLV =
1207, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_AFFINITY_CONSTRAINT_SUB_TLV =
1208, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_SRLG_CONSTRAINT_SUB_TLV =
1209, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_BANDWIDTH_CONSTRAINT_SUB_TLV =
1210, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_DISJOINT_GROUP_CONSTRAINT_SUB_TLV =
1211, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SRV6_BSID_TLV =
1212, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SR_POLICY_NAME_TLV =
1213, /* draft-ietf-idr-te-lsp-distribution-17 */
BGP_LS_TLV_SRV6_ENDPOINT_FUNCTION_TLV =
1250, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_SRV6_BGP_PEER_NODE_SID_TLV =
1251, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_SRV6_SID_STRUCTURE_TLV =
1252, /* draft-ietf-idr-bgpls-srv6-ext-08 */
BGP_LS_TLV_MAX = 1253, /* max TLV value for table size*/
};
/* RFC7752 #3.2.1.4 IGP router-ID */
enum bgp_ls_nlri_node_descr_ig_router_id_size {
BGP_LS_TLV_IGP_ROUTER_ID_ISIS_NON_PSEUDOWIRE_SIZE = 6,
BGP_LS_TLV_IGP_ROUTER_ID_ISIS_PSEUDOWIRE_SIZE = 7,
BGP_LS_TLV_IGP_ROUTER_ID_OSPF_NON_PSEUDOWIRE_SIZE = 4,
BGP_LS_TLV_IGP_ROUTER_ID_OSPF_PSEUDOWIRE_SIZE = 8,
};
extern int bgp_nlri_parse_linkstate(struct peer *peer, struct attr *attr, extern int bgp_nlri_parse_linkstate(struct peer *peer, struct attr *attr,
struct bgp_nlri *packet, int withdraw); struct bgp_nlri *packet, int withdraw);
extern void bgp_nlri_encode_linkstate(struct stream *s, const struct prefix *p); extern void bgp_nlri_encode_linkstate(struct stream *s, const struct prefix *p);
extern char *bgp_linkstate_nlri_prefix_display(char *buf, size_t size,
uint16_t nlri_type,
uintptr_t prefix, uint16_t len);
extern void bgp_linkstate_nlri_prefix_json(json_object *json,
uint16_t nlri_type, uintptr_t prefix,
uint16_t len);
#endif /* BGP_LINKSTATE_TLV_H */ #endif /* BGP_LINKSTATE_TLV_H */

13
bgpd/bgp_route.c
View File

@ -73,6 +73,7 @@
#include "bgpd/bgp_flowspec.h" #include "bgpd/bgp_flowspec.h"
#include "bgpd/bgp_flowspec_util.h" #include "bgpd/bgp_flowspec_util.h"
#include "bgpd/bgp_pbr.h" #include "bgpd/bgp_pbr.h"
#include "bgpd/bgp_linkstate_tlv.h"
#include "bgpd/bgp_route_clippy.c" #include "bgpd/bgp_route_clippy.c"
@ -8799,6 +8800,14 @@ static void route_vty_out_route(struct bgp_dest *dest, const struct prefix *p,
json ? json ?
NLRI_STRING_FORMAT_JSON_SIMPLE : NLRI_STRING_FORMAT_JSON_SIMPLE :
NLRI_STRING_FORMAT_MIN, json); NLRI_STRING_FORMAT_MIN, json);
} else if (p->family == AF_LINKSTATE) {
if (json) {
json_object_int_add(json, "version", dest->version);
bgp_linkstate_nlri_prefix_json(
json, p->u.prefix_linkstate.nlri_type,
p->u.prefix_linkstate.ptr, p->prefixlen);
} else
len = vty_out(vty, "%pFX", p);
} else { } else {
if (!json) if (!json)
len = vty_out(vty, "%pFX", p); len = vty_out(vty, "%pFX", p);
@ -11036,6 +11045,10 @@ void route_vty_out_detail(struct vty *vty, struct bgp *bgp, struct bgp_dest *bn,
" Time until Long-lived stale route deleted: %lu\n", " Time until Long-lived stale route deleted: %lu\n",
llgr_remaining); llgr_remaining);
} }
if (safi == SAFI_LINKSTATE && json_paths)
bgp_linkstate_nlri_prefix_json(
json_path, bn->rn->p.u.prefix_linkstate.nlri_type,
bn->rn->p.u.prefix_linkstate.ptr, bn->rn->p.prefixlen);
/* Output some debug about internal state of the dest flags */ /* Output some debug about internal state of the dest flags */
if (json_paths) { if (json_paths) {

2
bgpd/bgpd.c
View File

@ -71,6 +71,7 @@
#include "bgpd/bgp_io.h" #include "bgpd/bgp_io.h"
#include "bgpd/bgp_ecommunity.h" #include "bgpd/bgp_ecommunity.h"
#include "bgpd/bgp_flowspec.h" #include "bgpd/bgp_flowspec.h"
#include "bgpd/bgp_linkstate.h"
#include "bgpd/bgp_labelpool.h" #include "bgpd/bgp_labelpool.h"
#include "bgpd/bgp_pbr.h" #include "bgpd/bgp_pbr.h"
#include "bgpd/bgp_addpath.h" #include "bgpd/bgp_addpath.h"
@ -8390,6 +8391,7 @@ void bgp_init(unsigned short instance)
#endif #endif
bgp_ethernetvpn_init(); bgp_ethernetvpn_init();
bgp_flowspec_vty_init(); bgp_flowspec_vty_init();
bgp_linkstate_init();
/* Access list initialize. */ /* Access list initialize. */
access_list_init(); access_list_init();

2
bgpd/subdir.am
View File

@ -51,6 +51,7 @@ bgpd_libbgp_a_SOURCES = \
bgpd/bgp_label.c \ bgpd/bgp_label.c \
bgpd/bgp_labelpool.c \ bgpd/bgp_labelpool.c \
bgpd/bgp_lcommunity.c \ bgpd/bgp_lcommunity.c \
bgpd/bgp_linkstate.c \
bgpd/bgp_linkstate_tlv.c \ bgpd/bgp_linkstate_tlv.c \
bgpd/bgp_mac.c \ bgpd/bgp_mac.c \
bgpd/bgp_memory.c \ bgpd/bgp_memory.c \
@ -134,6 +135,7 @@ noinst_HEADERS += \
bgpd/bgp_label.h \ bgpd/bgp_label.h \
bgpd/bgp_labelpool.h \ bgpd/bgp_labelpool.h \
bgpd/bgp_lcommunity.h \ bgpd/bgp_lcommunity.h \
bgpd/bgp_linkstate.h \
bgpd/bgp_linkstate_tlv.h \ bgpd/bgp_linkstate_tlv.h \
bgpd/bgp_mac.h \ bgpd/bgp_mac.h \
bgpd/bgp_memory.h \ bgpd/bgp_memory.h \