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isisd: add isis flex-algo configuration backend

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Add the backend functions for the flex-algo configuration.

Signed-off-by: Hiroki Shirokura <hiroki.shirokura@linecorp.com>
Signed-off-by: Eric Kinzie <ekinzie@labn.net>
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
This commit is contained in:
Hiroki Shirokura 2021-12-18 08:23:16 +00:00 committed by Louis Scalbert
parent 7f198e063c
commit 893882ee20
2 changed files with 532 additions and 18 deletions
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546
isisd/isis_nb_config.c
View File

@ -21,6 +21,7 @@
#include "vrf.h"
#include "ldp_sync.h"
#include "link_state.h"
#include "affinitymap.h"
#include "isisd/isisd.h"
#include "isisd/isis_nb.h"
@ -39,8 +40,14 @@
#include "isisd/isis_redist.h"
#include "isisd/isis_ldp_sync.h"
#include "isisd/isis_dr.h"
#include "isisd/isis_sr.h"
#include "isisd/isis_flex_algo.h"
#include "isisd/isis_zebra.h"
#define AFFINITY_INCLUDE_ANY 0
#define AFFINITY_INCLUDE_ALL 1
#define AFFINITY_EXCLUDE_ANY 2
/*
* XPath: /frr-isisd:isis/instance
*/
@ -422,6 +429,44 @@ int isis_instance_purge_originator_modify(struct nb_cb_modify_args *args)
*/
int isis_instance_admin_group_send_zero_modify(struct nb_cb_modify_args *args)
{
struct isis_circuit *circuit;
struct isis_area *area;
struct listnode *node;
struct flex_algo *fa;
if (args->event != NB_EV_APPLY)
return NB_OK;
area = nb_running_get_entry(args->dnode, NULL, true);
area->admin_group_send_zero = yang_dnode_get_bool(args->dnode, NULL);
if (area->admin_group_send_zero) {
for (ALL_LIST_ELEMENTS_RO(area->flex_algos->flex_algos, node,
fa)) {
admin_group_allow_explicit_zero(
&fa->admin_group_exclude_any);
admin_group_allow_explicit_zero(
&fa->admin_group_include_any);
admin_group_allow_explicit_zero(
&fa->admin_group_include_all);
}
} else {
for (ALL_LIST_ELEMENTS_RO(area->flex_algos->flex_algos, node,
fa)) {
admin_group_disallow_explicit_zero(
&fa->admin_group_exclude_any);
admin_group_disallow_explicit_zero(
&fa->admin_group_include_any);
admin_group_disallow_explicit_zero(
&fa->admin_group_include_all);
}
}
for (ALL_LIST_ELEMENTS_RO(area->circuit_list, node, circuit))
isis_link_params_update(circuit, circuit->interface);
lsp_regenerate_schedule(area, IS_LEVEL_1 | IS_LEVEL_2, 0);
return NB_OK;
}
@ -431,6 +476,15 @@ int isis_instance_admin_group_send_zero_modify(struct nb_cb_modify_args *args)
*/
int isis_instance_asla_legacy_flag_modify(struct nb_cb_modify_args *args)
{
struct isis_area *area;
if (args->event != NB_EV_APPLY)
return NB_OK;
area = nb_running_get_entry(args->dnode, NULL, true);
area->asla_legacy_flag = yang_dnode_get_bool(args->dnode, NULL);
lsp_regenerate_schedule(area, IS_LEVEL_1 | IS_LEVEL_2, 0);
return NB_OK;
}
@ -2697,11 +2751,62 @@ int isis_instance_segment_routing_algorithm_prefix_sid_n_flag_clear_modify(
*/
int isis_instance_flex_algo_create(struct nb_cb_create_args *args)
{
struct isis_area *area;
struct flex_algo *fa;
bool advertise;
uint32_t algorithm;
uint32_t priority = FLEX_ALGO_PRIO_DEFAULT;
struct isis_flex_algo_alloc_arg arg;
algorithm = yang_dnode_get_uint32(args->dnode, "./flex-algo");
advertise = yang_dnode_exists(args->dnode, "./advertise-definition");
switch (args->event) {
case NB_EV_APPLY:
area = nb_running_get_entry(args->dnode, NULL, true);
arg.algorithm = algorithm;
arg.area = area;
fa = flex_algo_alloc(area->flex_algos, algorithm, &arg);
fa->priority = priority;
fa->advertise_definition = advertise;
if (area->admin_group_send_zero) {
admin_group_allow_explicit_zero(
&fa->admin_group_exclude_any);
admin_group_allow_explicit_zero(
&fa->admin_group_include_any);
admin_group_allow_explicit_zero(
&fa->admin_group_include_all);
}
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
int isis_instance_flex_algo_destroy(struct nb_cb_destroy_args *args)
{
struct isis_area *area;
uint32_t algorithm;
algorithm = yang_dnode_get_uint32(args->dnode, "./flex-algo");
area = nb_running_get_entry(args->dnode, NULL, true);
switch (args->event) {
case NB_EV_APPLY:
flex_algo_delete(area->flex_algos, algorithm);
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
@ -2711,12 +2816,191 @@ int isis_instance_flex_algo_destroy(struct nb_cb_destroy_args *args)
int isis_instance_flex_algo_advertise_definition_modify(
struct nb_cb_modify_args *args)
{
struct isis_area *area;
struct flex_algo *fa;
bool advertise;
uint32_t algorithm;
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
advertise = yang_dnode_exists(args->dnode, "./../advertise-definition");
switch (args->event) {
case NB_EV_APPLY:
area = nb_running_get_entry(args->dnode, NULL, true);
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
fa->advertise_definition = advertise;
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
int isis_instance_flex_algo_advertise_definition_destroy(
struct nb_cb_destroy_args *args)
{
struct isis_area *area;
struct flex_algo *fa;
uint32_t algorithm;
area = nb_running_get_entry(args->dnode, NULL, true);
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
switch (args->event) {
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
fa->advertise_definition = false;
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
static int isis_instance_flex_algo_affinity_set(struct nb_cb_create_args *args,
int type)
{
struct affinity_map *map;
struct isis_area *area;
struct admin_group *ag;
struct flex_algo *fa;
uint32_t algorithm;
const char *val;
algorithm = yang_dnode_get_uint32(args->dnode, "../../flex-algo");
area = nb_running_get_entry(args->dnode, NULL, true);
val = yang_dnode_get_string(args->dnode, ".");
switch (args->event) {
case NB_EV_VALIDATE:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
map = affinity_map_get(val);
if (!map) {
snprintf(args->errmsg, args->errmsg_len,
"affinity map %s isn't found", val);
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
map = affinity_map_get(val);
if (!map) {
snprintf(args->errmsg, args->errmsg_len,
"affinity map %s isn't found", val);
return NB_ERR_RESOURCE;
}
if (type == AFFINITY_INCLUDE_ANY)
ag = &fa->admin_group_include_any;
else if (type == AFFINITY_INCLUDE_ALL)
ag = &fa->admin_group_include_all;
else if (type == AFFINITY_EXCLUDE_ANY)
ag = &fa->admin_group_exclude_any;
else
break;
admin_group_set(ag, map->bit_position);
lsp_regenerate_schedule(area, area->is_type, 0);
break;
}
return NB_OK;
}
static int
isis_instance_flex_algo_affinity_unset(struct nb_cb_destroy_args *args,
int type)
{
struct affinity_map *map;
struct isis_area *area;
struct admin_group *ag;
struct flex_algo *fa;
uint32_t algorithm;
const char *val;
algorithm = yang_dnode_get_uint32(args->dnode, "../../flex-algo");
area = nb_running_get_entry(args->dnode, NULL, true);
val = yang_dnode_get_string(args->dnode, ".");
switch (args->event) {
case NB_EV_VALIDATE:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
map = affinity_map_get(val);
if (!map) {
snprintf(args->errmsg, args->errmsg_len,
"affinity map %s isn't found", val);
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
map = affinity_map_get(val);
if (!map) {
snprintf(args->errmsg, args->errmsg_len,
"affinity map %s isn't found", val);
return NB_ERR_RESOURCE;
}
if (type == AFFINITY_INCLUDE_ANY)
ag = &fa->admin_group_include_any;
else if (type == AFFINITY_INCLUDE_ALL)
ag = &fa->admin_group_include_all;
else if (type == AFFINITY_EXCLUDE_ANY)
ag = &fa->admin_group_exclude_any;
else
break;
admin_group_unset(ag, map->bit_position);
if (area->admin_group_send_zero)
admin_group_allow_explicit_zero(ag);
lsp_regenerate_schedule(area, area->is_type, 0);
break;
}
return NB_OK;
}
@ -2727,13 +3011,14 @@ int isis_instance_flex_algo_advertise_definition_destroy(
int isis_instance_flex_algo_affinity_include_any_create(
struct nb_cb_create_args *args)
{
return NB_OK;
return isis_instance_flex_algo_affinity_set(args, AFFINITY_INCLUDE_ANY);
}
int isis_instance_flex_algo_affinity_include_any_destroy(
struct nb_cb_destroy_args *args)
{
return NB_OK;
return isis_instance_flex_algo_affinity_unset(args,
AFFINITY_INCLUDE_ANY);
}
/*
@ -2743,13 +3028,14 @@ int isis_instance_flex_algo_affinity_include_any_destroy(
int isis_instance_flex_algo_affinity_include_all_create(
struct nb_cb_create_args *args)
{
return NB_OK;
return isis_instance_flex_algo_affinity_set(args, AFFINITY_INCLUDE_ALL);
}
int isis_instance_flex_algo_affinity_include_all_destroy(
struct nb_cb_destroy_args *args)
{
return NB_OK;
return isis_instance_flex_algo_affinity_unset(args,
AFFINITY_INCLUDE_ALL);
}
/*
@ -2759,14 +3045,14 @@ int isis_instance_flex_algo_affinity_include_all_destroy(
int isis_instance_flex_algo_affinity_exclude_any_create(
struct nb_cb_create_args *args)
{
return NB_OK;
return isis_instance_flex_algo_affinity_set(args, AFFINITY_EXCLUDE_ANY);
}
int isis_instance_flex_algo_affinity_exclude_any_destroy(
struct nb_cb_destroy_args *args)
{
/* TODO: implement me. */
return NB_OK;
return isis_instance_flex_algo_affinity_unset(args,
AFFINITY_EXCLUDE_ANY);
}
/*
@ -2775,14 +3061,147 @@ int isis_instance_flex_algo_affinity_exclude_any_destroy(
int isis_instance_flex_algo_prefix_metric_create(struct nb_cb_create_args *args)
{
/* TODO: implement me. */
struct isis_area *area;
const char *area_tag;
struct flex_algo *fa;
uint32_t algorithm;
area_tag = yang_dnode_get_string(args->dnode, "../../../area-tag");
area = isis_area_lookup(area_tag, VRF_DEFAULT);
if (!area)
return NB_ERR_RESOURCE;
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
switch (args->event) {
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
SET_FLAG(fa->flags, FAD_FLAG_M);
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
int isis_instance_flex_algo_prefix_metric_destroy(
struct nb_cb_destroy_args *args)
{
/* TODO: implement me. */
struct isis_area *area;
const char *area_tag;
struct flex_algo *fa;
uint32_t algorithm;
area_tag = yang_dnode_get_string(args->dnode, "../../../area-tag");
area = isis_area_lookup(area_tag, VRF_DEFAULT);
if (!area)
return NB_ERR_RESOURCE;
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
switch (args->event) {
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
UNSET_FLAG(fa->flags, FAD_FLAG_M);
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
static int isis_instance_flex_algo_dplane_set(struct nb_cb_create_args *args,
int type)
{
struct isis_area *area;
const char *area_tag;
struct flex_algo *fa;
uint32_t algorithm;
area_tag = yang_dnode_get_string(args->dnode, "../../../area-tag");
area = isis_area_lookup(area_tag, VRF_DEFAULT);
if (!area)
return NB_ERR_RESOURCE;
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
switch (args->event) {
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
SET_FLAG(fa->dataplanes, type);
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
if (type == FLEX_ALGO_SRV6 || type == FLEX_ALGO_IP) {
snprintf(args->errmsg, args->errmsg_len,
"%s Flex-algo dataplane is not yet supported.",
type == FLEX_ALGO_SRV6 ? "SRv6" : "IP");
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
static int isis_instance_flex_algo_dplane_unset(struct nb_cb_destroy_args *args,
int type)
{
struct isis_area *area;
const char *area_tag;
struct flex_algo *fa;
uint32_t algorithm;
area_tag = yang_dnode_get_string(args->dnode, "../../../area-tag");
area = isis_area_lookup(area_tag, VRF_DEFAULT);
if (!area)
return NB_ERR_RESOURCE;
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
switch (args->event) {
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
UNSET_FLAG(fa->dataplanes, type);
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
@ -2793,13 +3212,13 @@ int isis_instance_flex_algo_prefix_metric_destroy(
int isis_instance_flex_algo_dplane_sr_mpls_create(
struct nb_cb_create_args *args)
{
return NB_OK;
return isis_instance_flex_algo_dplane_set(args, FLEX_ALGO_SR_MPLS);
}
int isis_instance_flex_algo_dplane_sr_mpls_destroy(
struct nb_cb_destroy_args *args)
{
return NB_OK;
return isis_instance_flex_algo_dplane_unset(args, FLEX_ALGO_SR_MPLS);
}
/*
@ -2808,12 +3227,12 @@ int isis_instance_flex_algo_dplane_sr_mpls_destroy(
int isis_instance_flex_algo_dplane_srv6_create(struct nb_cb_create_args *args)
{
return NB_OK;
return isis_instance_flex_algo_dplane_set(args, FLEX_ALGO_SRV6);
}
int isis_instance_flex_algo_dplane_srv6_destroy(struct nb_cb_destroy_args *args)
{
return NB_OK;
return isis_instance_flex_algo_dplane_unset(args, FLEX_ALGO_SRV6);
}
/*
@ -2822,12 +3241,12 @@ int isis_instance_flex_algo_dplane_srv6_destroy(struct nb_cb_destroy_args *args)
int isis_instance_flex_algo_dplane_ip_create(struct nb_cb_create_args *args)
{
return NB_OK;
return isis_instance_flex_algo_dplane_set(args, FLEX_ALGO_IP);
}
int isis_instance_flex_algo_dplane_ip_destroy(struct nb_cb_destroy_args *args)
{
return NB_OK;
return isis_instance_flex_algo_dplane_unset(args, FLEX_ALGO_IP);
}
/*
@ -2836,6 +3255,36 @@ int isis_instance_flex_algo_dplane_ip_destroy(struct nb_cb_destroy_args *args)
int isis_instance_flex_algo_metric_type_modify(struct nb_cb_modify_args *args)
{
struct isis_area *area;
const char *area_tag;
struct flex_algo *fa;
uint32_t algorithm;
enum flex_algo_metric_type metric_type;
area_tag = yang_dnode_get_string(args->dnode, "../../../area-tag");
area = isis_area_lookup(area_tag, VRF_DEFAULT);
if (!area)
return NB_ERR_RESOURCE;
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
metric_type = yang_dnode_get_enum(args->dnode, NULL);
switch (args->event) {
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
fa->metric_type = metric_type;
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
@ -2846,13 +3295,73 @@ int isis_instance_flex_algo_metric_type_modify(struct nb_cb_modify_args *args)
int isis_instance_flex_algo_priority_modify(struct nb_cb_modify_args *args)
{
/* TODO: implement me. */
struct isis_area *area;
const char *area_tag;
struct flex_algo *fa;
uint32_t algorithm;
uint32_t priority;
area_tag = yang_dnode_get_string(args->dnode, "../../../area-tag");
area = isis_area_lookup(area_tag, VRF_DEFAULT);
if (!area)
return NB_ERR_RESOURCE;
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
priority = yang_dnode_get_uint32(args->dnode, NULL);
switch (args->event) {
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
fa->priority = priority;
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
int isis_instance_flex_algo_priority_destroy(struct nb_cb_destroy_args *args)
{
/* TODO: implement me. */
struct isis_area *area;
const char *area_tag;
struct flex_algo *fa;
uint32_t algorithm;
uint32_t priority = FLEX_ALGO_PRIO_DEFAULT;
area_tag = yang_dnode_get_string(args->dnode, "../../../area-tag");
area = isis_area_lookup(area_tag, VRF_DEFAULT);
if (!area)
return NB_ERR_RESOURCE;
algorithm = yang_dnode_get_uint32(args->dnode, "./../flex-algo");
priority = yang_dnode_get_uint32(args->dnode, NULL);
switch (args->event) {
case NB_EV_APPLY:
fa = flex_algo_lookup(area->flex_algos, algorithm);
if (!fa) {
snprintf(args->errmsg, args->errmsg_len,
"flex-algo object not found");
return NB_ERR_RESOURCE;
}
fa->priority = priority;
lsp_regenerate_schedule(area, area->is_type, 0);
break;
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
}
return NB_OK;
}
@ -2978,7 +3487,8 @@ int lib_interface_isis_area_tag_modify(struct nb_cb_modify_args *args)
struct isis_circuit *circuit;
if (args->event == NB_EV_VALIDATE) {
circuit = nb_running_get_entry_non_rec(lyd_parent(args->dnode), NULL, false);
circuit = nb_running_get_entry_non_rec(lyd_parent(args->dnode),
NULL, false);
if (circuit) {
snprintf(args->errmsg, args->errmsg_len,
"Changing area tag is not allowed");

4
isisd/isisd.h
View File

@ -163,6 +163,10 @@ struct isis_area {
/* do we support new style metrics? */
char newmetric;
char oldmetric;
/* Allow sending the default admin-group value of 0x00000000. */
bool admin_group_send_zero;
/* Set the legacy flag (aka. L-FLAG) in the ASLA Sub-TLV */
bool asla_legacy_flag;
/* identifies the routing instance */
char *area_tag;
/* area addresses for this area */