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ospfd: rework BFD integration

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Use new BFD API to integrate with OSPFv2.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
This commit is contained in:
Rafael Zalamena 2021-03-03 17:22:47 -03:00
parent cab054bfd2
commit 659f4e40dd
10 changed files with 173 additions and 350 deletions
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441
ospfd/ospf_bfd.c
View File

@ -23,6 +23,7 @@
#include <zebra.h> #include <zebra.h>
#include "command.h" #include "command.h"
#include "json.h"
#include "linklist.h" #include "linklist.h"
#include "memory.h" #include "memory.h"
#include "prefix.h" #include "prefix.h"
@ -44,49 +45,10 @@
#include "ospf_dump.h" #include "ospf_dump.h"
#include "ospf_vty.h" #include "ospf_vty.h"
DEFINE_MTYPE_STATIC(OSPFD, BFD_CONFIG, "BFD configuration data");
extern struct zclient *zclient; extern struct zclient *zclient;
/*
* ospf_bfd_info_free - Free BFD info structure
*/
void ospf_bfd_info_free(void **bfd_info)
{
bfd_info_free((struct bfd_info **)bfd_info);
}
/*
* ospf_bfd_reg_dereg_nbr - Register/Deregister a neighbor with BFD through
* zebra for starting/stopping the monitoring of
* the neighbor rechahability.
*/
static void ospf_bfd_reg_dereg_nbr(struct ospf_neighbor *nbr, int command)
{
struct ospf_interface *oi = nbr->oi;
struct interface *ifp = oi->ifp;
struct ospf_if_params *params;
struct bfd_info *bfd_info;
int cbit;
/* Check if BFD is enabled */
params = IF_DEF_PARAMS(ifp);
/* Check if BFD is enabled */
if (!params->bfd_info)
return;
bfd_info = (struct bfd_info *)params->bfd_info;
if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE))
zlog_debug("%s nbr (%pI4) with BFD. OSPF vrf %s",
bfd_get_command_dbg_str(command),
&nbr->src,
ospf_vrf_id_to_name(oi->ospf->vrf_id));
cbit = CHECK_FLAG(bfd_info->flags, BFD_FLAG_BFD_CBIT_ON);
bfd_peer_sendmsg(zclient, bfd_info, AF_INET, &nbr->src, NULL, ifp->name,
0, 0, cbit, command, 0, oi->ospf->vrf_id);
}
/* /*
* ospf_bfd_trigger_event - Neighbor is registered/deregistered with BFD when * ospf_bfd_trigger_event - Neighbor is registered/deregistered with BFD when
* neighbor state is changed to/from 2way. * neighbor state is changed to/from 2way.
@ -94,18 +56,68 @@ static void ospf_bfd_reg_dereg_nbr(struct ospf_neighbor *nbr, int command)
void ospf_bfd_trigger_event(struct ospf_neighbor *nbr, int old_state, int state) void ospf_bfd_trigger_event(struct ospf_neighbor *nbr, int old_state, int state)
{ {
if ((old_state < NSM_TwoWay) && (state >= NSM_TwoWay)) if ((old_state < NSM_TwoWay) && (state >= NSM_TwoWay))
ospf_bfd_reg_dereg_nbr(nbr, ZEBRA_BFD_DEST_REGISTER); bfd_sess_install(nbr->bfd_session);
else if ((old_state >= NSM_TwoWay) && (state < NSM_TwoWay)) else if ((old_state >= NSM_TwoWay) && (state < NSM_TwoWay))
ospf_bfd_reg_dereg_nbr(nbr, ZEBRA_BFD_DEST_DEREGISTER); bfd_sess_uninstall(nbr->bfd_session);
} }
/* static void ospf_bfd_session_change(struct bfd_session_params *bsp,
* ospf_bfd_reg_dereg_all_nbr - Register/Deregister all neighbors associated const struct bfd_session_status *bss,
* with a interface with BFD through void *arg)
* zebra for starting/stopping the monitoring of {
* the neighbor rechahability. struct ospf_neighbor *nbr = arg;
*/
static int ospf_bfd_reg_dereg_all_nbr(struct interface *ifp, int command) /* BFD peer went down. */
if (bss->state == BFD_STATUS_DOWN
&& bss->previous_state == BFD_STATUS_UP) {
if (IS_DEBUG_OSPF(nsm, NSM_EVENTS))
zlog_debug("NSM[%s:%pI4]: BFD Down", IF_NAME(nbr->oi),
&nbr->address.u.prefix4);
OSPF_NSM_EVENT_SCHEDULE(nbr, NSM_InactivityTimer);
}
/* BFD peer went up. */
if (bss->state == BSS_UP && bss->previous_state == BSS_DOWN)
if (IS_DEBUG_OSPF(nsm, NSM_EVENTS))
zlog_debug("NSM[%s:%pI4]: BFD Up", IF_NAME(nbr->oi),
&nbr->address.u.prefix4);
}
void ospf_neighbor_bfd_apply(struct ospf_neighbor *nbr)
{
struct ospf_interface *oi = nbr->oi;
struct ospf_if_params *oip = IF_DEF_PARAMS(oi->ifp);
/* BFD configuration was removed. */
if (oip->bfd_config == NULL) {
bfd_sess_free(&nbr->bfd_session);
return;
}
/* New BFD session. */
if (nbr->bfd_session == NULL) {
nbr->bfd_session = bfd_sess_new(ospf_bfd_session_change, nbr);
bfd_sess_set_ipv4_addrs(nbr->bfd_session, NULL, &nbr->src);
bfd_sess_set_interface(nbr->bfd_session, oi->ifp->name);
bfd_sess_set_vrf(nbr->bfd_session, oi->ospf->vrf_id);
bfd_sess_enable(nbr->bfd_session, true);
}
/* Set new configuration. */
bfd_sess_set_timers(nbr->bfd_session,
oip->bfd_config->detection_multiplier,
oip->bfd_config->min_rx, oip->bfd_config->min_tx);
bfd_sess_set_profile(nbr->bfd_session, oip->bfd_config->profile);
/* Don't start sessions on down OSPF sessions. */
if (nbr->state < NSM_TwoWay)
return;
bfd_sess_install(nbr->bfd_session);
}
static void ospf_interface_bfd_apply(struct interface *ifp)
{ {
struct ospf_interface *oi; struct ospf_interface *oi;
struct route_table *nbrs; struct route_table *nbrs;
@ -113,274 +125,82 @@ static int ospf_bfd_reg_dereg_all_nbr(struct interface *ifp, int command)
struct route_node *irn; struct route_node *irn;
struct route_node *nrn; struct route_node *nrn;
/* Iterate over all interfaces and set neighbors BFD session. */
for (irn = route_top(IF_OIFS(ifp)); irn; irn = route_next(irn)) { for (irn = route_top(IF_OIFS(ifp)); irn; irn = route_next(irn)) {
if ((oi = irn->info) == NULL) if ((oi = irn->info) == NULL)
continue; continue;
if ((nbrs = oi->nbrs) == NULL) if ((nbrs = oi->nbrs) == NULL)
continue; continue;
for (nrn = route_top(nbrs); nrn; nrn = route_next(nrn)) { for (nrn = route_top(nbrs); nrn; nrn = route_next(nrn)) {
if ((nbr = nrn->info) == NULL || nbr == oi->nbr_self) if ((nbr = nrn->info) == NULL || nbr == oi->nbr_self)
continue; continue;
if (command != ZEBRA_BFD_DEST_DEREGISTER) ospf_neighbor_bfd_apply(nbr);
ospf_bfd_info_nbr_create(oi, nbr); }
else
bfd_info_free(
(struct bfd_info **)&nbr->bfd_info);
if (nbr->state < NSM_TwoWay)
continue;
ospf_bfd_reg_dereg_nbr(nbr, command);
} }
} }
return 0; static void ospf_interface_enable_bfd(struct interface *ifp)
}
/*
* ospf_bfd_nbr_replay - Replay all the neighbors that have BFD enabled
* to zebra
*/
static int ospf_bfd_nbr_replay(ZAPI_CALLBACK_ARGS)
{ {
struct listnode *inode, *node, *onode; struct ospf_if_params *oip = IF_DEF_PARAMS(ifp);
struct ospf *ospf;
struct ospf_interface *oi;
struct route_table *nbrs;
struct route_node *rn;
struct ospf_neighbor *nbr;
struct ospf_if_params *params;
if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) { if (oip->bfd_config)
zlog_debug("Zebra: BFD Dest replay request");
}
/* Send the client registration */
bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, vrf_id);
/* Replay the neighbor, if BFD is enabled in OSPF */
for (ALL_LIST_ELEMENTS(om->ospf, node, onode, ospf)) {
for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, inode, oi)) {
if ((nbrs = oi->nbrs) == NULL)
continue;
params = IF_DEF_PARAMS(oi->ifp);
if (!params->bfd_info)
continue;
for (rn = route_top(nbrs); rn; rn = route_next(rn)) {
if ((nbr = rn->info) == NULL
|| nbr == oi->nbr_self)
continue;
if (nbr->state < NSM_TwoWay)
continue;
if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE))
zlog_debug("Replaying nbr (%pI4) to BFD",
&nbr->src);
ospf_bfd_reg_dereg_nbr(nbr,
ZEBRA_BFD_DEST_UPDATE);
}
}
}
return 0;
}
/*
* ospf_bfd_interface_dest_update - Find the neighbor for which the BFD status
* has changed and bring down the neighbor
* connectivity if the BFD status changed to
* down.
*/
static int ospf_bfd_interface_dest_update(ZAPI_CALLBACK_ARGS)
{
struct interface *ifp;
struct ospf_interface *oi;
struct ospf_if_params *params;
struct ospf_neighbor *nbr = NULL;
struct route_node *node;
struct route_node *n_node;
struct prefix p, src_p;
int status;
int old_status;
struct bfd_info *bfd_info;
struct timeval tv;
ifp = bfd_get_peer_info(zclient->ibuf, &p, &src_p, &status, NULL,
vrf_id);
if ((ifp == NULL) || (p.family != AF_INET))
return 0;
if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE))
zlog_debug("Zebra: interface %s bfd destination %pFX %s",
ifp->name, &p, bfd_get_status_str(status));
params = IF_DEF_PARAMS(ifp);
if (!params->bfd_info)
return 0;
for (node = route_top(IF_OIFS(ifp)); node; node = route_next(node)) {
if ((oi = node->info) == NULL)
continue;
/* walk the neighbor list for point-to-point network */
if (oi->type == OSPF_IFTYPE_POINTOPOINT) {
for (n_node = route_top(oi->nbrs); n_node;
n_node = route_next(n_node)) {
nbr = n_node->info;
if (nbr) {
/* skip myself */
if (nbr == oi->nbr_self) {
nbr = NULL;
continue;
}
/* Found the matching neighbor */
if (nbr->src.s_addr ==
p.u.prefix4.s_addr)
break;
}
}
} else {
nbr = ospf_nbr_lookup_by_addr(oi->nbrs, &p.u.prefix4);
}
if (!nbr || !nbr->bfd_info)
continue;
bfd_info = (struct bfd_info *)nbr->bfd_info;
if (bfd_info->status == status)
continue;
old_status = bfd_info->status;
BFD_SET_CLIENT_STATUS(bfd_info->status, status);
monotime(&tv);
bfd_info->last_update = tv.tv_sec;
if ((status == BFD_STATUS_DOWN)
&& (old_status == BFD_STATUS_UP)) {
if (IS_DEBUG_OSPF(nsm, NSM_EVENTS))
zlog_debug("NSM[%s:%pI4]: BFD Down",
IF_NAME(nbr->oi),
&nbr->address.u.prefix4);
OSPF_NSM_EVENT_SCHEDULE(nbr, NSM_InactivityTimer);
}
if ((status == BFD_STATUS_UP)
&& (old_status == BFD_STATUS_DOWN)) {
if (IS_DEBUG_OSPF(nsm, NSM_EVENTS))
zlog_debug("NSM[%s:%pI4]: BFD Up",
IF_NAME(nbr->oi),
&nbr->address.u.prefix4);
}
}
return 0;
}
/*
* ospf_bfd_info_nbr_create - Create/update BFD information for a neighbor.
*/
void ospf_bfd_info_nbr_create(struct ospf_interface *oi,
struct ospf_neighbor *nbr)
{
struct bfd_info *oi_bfd_info;
struct bfd_info *nbr_bfd_info;
struct interface *ifp = oi->ifp;
struct ospf_if_params *params;
/* Check if BFD is enabled */
params = IF_DEF_PARAMS(ifp);
/* Check if BFD is enabled */
if (!params->bfd_info)
return; return;
oi_bfd_info = (struct bfd_info *)params->bfd_info; /* Allocate memory for configurations and set defaults. */
if (!nbr->bfd_info) oip->bfd_config = XCALLOC(MTYPE_BFD_CONFIG, sizeof(*oip->bfd_config));
nbr->bfd_info = bfd_info_create(); oip->bfd_config->detection_multiplier = BFD_DEF_DETECT_MULT;
oip->bfd_config->min_rx = BFD_DEF_MIN_RX;
oip->bfd_config->min_tx = BFD_DEF_MIN_TX;
}
nbr_bfd_info = (struct bfd_info *)nbr->bfd_info; void ospf_interface_disable_bfd(struct interface *ifp,
nbr_bfd_info->detect_mult = oi_bfd_info->detect_mult; struct ospf_if_params *oip)
nbr_bfd_info->desired_min_tx = oi_bfd_info->desired_min_tx; {
nbr_bfd_info->required_min_rx = oi_bfd_info->required_min_rx; XFREE(MTYPE_BFD_CONFIG, oip->bfd_config);
ospf_interface_bfd_apply(ifp);
} }
/* /*
* ospf_bfd_write_config - Write the interface BFD configuration. * ospf_bfd_write_config - Write the interface BFD configuration.
*/ */
void ospf_bfd_write_config(struct vty *vty, struct ospf_if_params *params) void ospf_bfd_write_config(struct vty *vty, const struct ospf_if_params *params
__attribute__((unused)))
{ {
#if HAVE_BFDD == 0 #if HAVE_BFDD == 0
struct bfd_info *bfd_info;
#endif /* ! HAVE_BFDD */
if (!params->bfd_info)
return;
#if HAVE_BFDD == 0
bfd_info = (struct bfd_info *)params->bfd_info;
if (CHECK_FLAG(bfd_info->flags, BFD_FLAG_PARAM_CFG)) if (CHECK_FLAG(bfd_info->flags, BFD_FLAG_PARAM_CFG))
vty_out(vty, " ip ospf bfd %d %d %d\n", bfd_info->detect_mult, vty_out(vty, " ip ospf bfd %d %d %d\n",
bfd_info->required_min_rx, bfd_info->desired_min_tx); params->bfd_config->detection_multiplier,
params->bfd_config->min_rx, params->bfd_config->min_tx);
else else
#endif /* ! HAVE_BFDD */ #endif /* ! HAVE_BFDD */
vty_out(vty, " ip ospf bfd\n"); vty_out(vty, " ip ospf bfd\n");
} }
/* void ospf_interface_bfd_show(struct vty *vty, const struct interface *ifp,
* ospf_bfd_show_info - Show BFD info structure struct json_object *json)
*/
void ospf_bfd_show_info(struct vty *vty, void *bfd_info, json_object *json_obj,
bool use_json, int param_only)
{ {
if (param_only) struct ospf_if_params *params = IF_DEF_PARAMS(ifp);
bfd_show_param(vty, (struct bfd_info *)bfd_info, 1, 0, use_json, struct bfd_configuration *bfd_config = params->bfd_config;
json_obj); struct json_object *json_bfd;
else
bfd_show_info(vty, (struct bfd_info *)bfd_info, 0, 1, use_json,
json_obj);
}
/* if (bfd_config == NULL)
* ospf_bfd_interface_show - Show the interface BFD configuration. return;
*/
void ospf_bfd_interface_show(struct vty *vty, struct interface *ifp,
json_object *json_interface_sub, bool use_json)
{
struct ospf_if_params *params;
params = IF_DEF_PARAMS(ifp); if (json) {
json_bfd = json_object_new_object();
ospf_bfd_show_info(vty, params->bfd_info, json_interface_sub, use_json, json_object_int_add(json_bfd, "detectionMultiplier",
1); bfd_config->detection_multiplier);
} json_object_int_add(json_bfd, "rxMinInterval",
bfd_config->min_rx);
/* json_object_int_add(json_bfd, "txMinInterval",
* ospf_bfd_if_param_set - Set the configured BFD paramter values for bfd_config->min_tx);
* interface. json_object_object_add(json, "peerBfdInfo", json_bfd);
*/ } else
static void ospf_bfd_if_param_set(struct interface *ifp, uint32_t min_rx, vty_out(vty,
uint32_t min_tx, uint8_t detect_mult, " BFD: Detect Multiplier: %d, Min Rx interval: %d, Min Tx interval: %d\n",
int defaults) bfd_config->detection_multiplier, bfd_config->min_rx,
{ bfd_config->min_tx);
struct ospf_if_params *params;
int command = 0;
params = IF_DEF_PARAMS(ifp);
bfd_set_param((struct bfd_info **)&(params->bfd_info), min_rx, min_tx,
detect_mult, NULL, defaults, &command);
if (command)
ospf_bfd_reg_dereg_all_nbr(ifp, command);
} }
DEFUN (ip_ospf_bfd, DEFUN (ip_ospf_bfd,
@ -391,17 +211,8 @@ DEFUN (ip_ospf_bfd,
"Enables BFD support\n") "Enables BFD support\n")
{ {
VTY_DECLVAR_CONTEXT(interface, ifp); VTY_DECLVAR_CONTEXT(interface, ifp);
struct ospf_if_params *params; ospf_interface_enable_bfd(ifp);
struct bfd_info *bfd_info; ospf_interface_bfd_apply(ifp);
assert(ifp);
params = IF_DEF_PARAMS(ifp);
bfd_info = params->bfd_info;
if (!bfd_info || !CHECK_FLAG(bfd_info->flags, BFD_FLAG_PARAM_CFG))
ospf_bfd_if_param_set(ifp, BFD_DEF_MIN_RX, BFD_DEF_MIN_TX,
BFD_DEF_DETECT_MULT, 1);
return CMD_SUCCESS; return CMD_SUCCESS;
} }
@ -421,23 +232,20 @@ DEFUN(
"Desired min transmit interval\n") "Desired min transmit interval\n")
{ {
VTY_DECLVAR_CONTEXT(interface, ifp); VTY_DECLVAR_CONTEXT(interface, ifp);
struct ospf_if_params *params;
int idx_number = 3; int idx_number = 3;
int idx_number_2 = 4; int idx_number_2 = 4;
int idx_number_3 = 5; int idx_number_3 = 5;
uint32_t rx_val;
uint32_t tx_val;
uint8_t dm_val;
int ret;
assert(ifp); ospf_interface_enable_bfd(ifp);
if ((ret = bfd_validate_param( params = IF_DEF_PARAMS(ifp);
vty, argv[idx_number]->arg, argv[idx_number_2]->arg, params->bfd_config->detection_multiplier =
argv[idx_number_3]->arg, &dm_val, &rx_val, &tx_val)) strtol(argv[idx_number]->arg, NULL, 10);
!= CMD_SUCCESS) params->bfd_config->min_rx = strtol(argv[idx_number_2]->arg, NULL, 10);
return ret; params->bfd_config->min_tx = strtol(argv[idx_number_3]->arg, NULL, 10);
ospf_bfd_if_param_set(ifp, rx_val, tx_val, dm_val, 0); ospf_interface_bfd_apply(ifp);
return CMD_SUCCESS; return CMD_SUCCESS;
} }
@ -461,26 +269,13 @@ DEFUN (no_ip_ospf_bfd,
) )
{ {
VTY_DECLVAR_CONTEXT(interface, ifp); VTY_DECLVAR_CONTEXT(interface, ifp);
struct ospf_if_params *params; ospf_interface_disable_bfd(ifp, IF_DEF_PARAMS(ifp));
assert(ifp);
params = IF_DEF_PARAMS(ifp);
if (params->bfd_info) {
ospf_bfd_reg_dereg_all_nbr(ifp, ZEBRA_BFD_DEST_DEREGISTER);
bfd_info_free(&(params->bfd_info));
}
return CMD_SUCCESS; return CMD_SUCCESS;
} }
void ospf_bfd_init(void) void ospf_bfd_init(struct thread_master *tm)
{ {
bfd_gbl_init(); bfd_protocol_integration_init(zclient, tm);
/* Initialize BFD client functions */
zclient->interface_bfd_dest_update = ospf_bfd_interface_dest_update;
zclient->bfd_dest_replay = ospf_bfd_nbr_replay;
/* Install BFD command */ /* Install BFD command */
install_element(INTERFACE_NODE, &ip_ospf_bfd_cmd); install_element(INTERFACE_NODE, &ip_ospf_bfd_cmd);

31
ospfd/ospf_bfd.h
View File

@ -23,27 +23,34 @@
#ifndef _ZEBRA_OSPF_BFD_H #ifndef _ZEBRA_OSPF_BFD_H
#define _ZEBRA_OSPF_BFD_H #define _ZEBRA_OSPF_BFD_H
#include "ospfd/ospf_interface.h"
#include "json.h" #include "json.h"
extern void ospf_bfd_init(void); extern void ospf_bfd_init(struct thread_master *tm);
extern void ospf_bfd_write_config(struct vty *vty, extern void ospf_bfd_write_config(struct vty *vty,
struct ospf_if_params *params); const struct ospf_if_params *params);
extern void ospf_bfd_trigger_event(struct ospf_neighbor *nbr, int old_state, extern void ospf_bfd_trigger_event(struct ospf_neighbor *nbr, int old_state,
int state); int state);
extern void ospf_bfd_interface_show(struct vty *vty, struct interface *ifp, /**
json_object *json_interface_sub, * Legacy information: it is the peers who actually have this information
bool use_json); * and the protocol should not need to know about timers.
*/
extern void ospf_interface_bfd_show(struct vty *vty,
const struct interface *ifp,
struct json_object *json);
extern void ospf_bfd_info_nbr_create(struct ospf_interface *oi, /**
struct ospf_neighbor *nbr); * Disables interface BFD configuration and remove settings from all peers.
*/
extern void ospf_interface_disable_bfd(struct interface *ifp,
struct ospf_if_params *oip);
extern void ospf_bfd_show_info(struct vty *vty, void *bfd_info, /**
json_object *json_obj, bool use_json, * Create/update BFD session for this OSPF neighbor.
int param_only); */
extern void ospf_neighbor_bfd_apply(struct ospf_neighbor *nbr);
extern void ospf_bfd_info_free(void **bfd_info);
#endif /* _ZEBRA_OSPF_BFD_H */ #endif /* _ZEBRA_OSPF_BFD_H */

12
ospfd/ospf_interface.c
View File

@ -35,6 +35,7 @@
#include "ldp_sync.h" #include "ldp_sync.h"
#include "ospfd/ospfd.h" #include "ospfd/ospfd.h"
#include "ospfd/ospf_bfd.h"
#include "ospfd/ospf_spf.h" #include "ospfd/ospf_spf.h"
#include "ospfd/ospf_interface.h" #include "ospfd/ospf_interface.h"
#include "ospfd/ospf_ism.h" #include "ospfd/ospf_ism.h"
@ -545,10 +546,11 @@ static struct ospf_if_params *ospf_new_if_params(void)
return oip; return oip;
} }
void ospf_del_if_params(struct ospf_if_params *oip) static void ospf_del_if_params(struct interface *ifp,
struct ospf_if_params *oip)
{ {
list_delete(&oip->auth_crypt); list_delete(&oip->auth_crypt);
bfd_info_free(&(oip->bfd_info)); ospf_interface_disable_bfd(ifp, oip);
ldp_sync_info_free(&(oip->ldp_sync_info)); ldp_sync_info_free(&(oip->ldp_sync_info));
XFREE(MTYPE_OSPF_IF_PARAMS, oip); XFREE(MTYPE_OSPF_IF_PARAMS, oip);
} }
@ -582,7 +584,7 @@ void ospf_free_if_params(struct interface *ifp, struct in_addr addr)
&& !OSPF_IF_PARAM_CONFIGURED(oip, auth_type) && !OSPF_IF_PARAM_CONFIGURED(oip, auth_type)
&& !OSPF_IF_PARAM_CONFIGURED(oip, if_area) && !OSPF_IF_PARAM_CONFIGURED(oip, if_area)
&& listcount(oip->auth_crypt) == 0) { && listcount(oip->auth_crypt) == 0) {
ospf_del_if_params(oip); ospf_del_if_params(ifp, oip);
rn->info = NULL; rn->info = NULL;
route_unlock_node(rn); route_unlock_node(rn);
} }
@ -696,10 +698,10 @@ static int ospf_if_delete_hook(struct interface *ifp)
for (rn = route_top(IF_OIFS_PARAMS(ifp)); rn; rn = route_next(rn)) for (rn = route_top(IF_OIFS_PARAMS(ifp)); rn; rn = route_next(rn))
if (rn->info) if (rn->info)
ospf_del_if_params(rn->info); ospf_del_if_params(ifp, rn->info);
route_table_finish(IF_OIFS_PARAMS(ifp)); route_table_finish(IF_OIFS_PARAMS(ifp));
ospf_del_if_params((struct ospf_if_params *)IF_DEF_PARAMS(ifp)); ospf_del_if_params(ifp, IF_DEF_PARAMS(ifp));
XFREE(MTYPE_OSPF_IF_INFO, ifp->info); XFREE(MTYPE_OSPF_IF_INFO, ifp->info);
return rc; return rc;

13
ospfd/ospf_interface.h
View File

@ -22,6 +22,7 @@
#ifndef _ZEBRA_OSPF_INTERFACE_H #ifndef _ZEBRA_OSPF_INTERFACE_H
#define _ZEBRA_OSPF_INTERFACE_H #define _ZEBRA_OSPF_INTERFACE_H
#include "lib/bfd.h"
#include "qobj.h" #include "qobj.h"
#include "hook.h" #include "hook.h"
#include "ospfd/ospf_packet.h" #include "ospfd/ospf_packet.h"
@ -104,7 +105,16 @@ struct ospf_if_params {
uint32_t network_lsa_seqnum; /* Network LSA seqnum */ uint32_t network_lsa_seqnum; /* Network LSA seqnum */
/* BFD configuration */ /* BFD configuration */
struct bfd_info *bfd_info; struct bfd_configuration {
/** BFD session detection multiplier. */
uint8_t detection_multiplier;
/** BFD session minimum required receive interval. */
uint32_t min_rx;
/** BFD session minimum required transmission interval. */
uint32_t min_tx;
/** BFD profile. */
char profile[BFD_PROFILE_NAME_LEN];
} * bfd_config;
/* MPLS LDP-IGP Sync configuration */ /* MPLS LDP-IGP Sync configuration */
struct ldp_sync_info *ldp_sync_info; struct ldp_sync_info *ldp_sync_info;
@ -285,7 +295,6 @@ extern struct ospf_if_params *ospf_lookup_if_params(struct interface *,
struct in_addr); struct in_addr);
extern struct ospf_if_params *ospf_get_if_params(struct interface *, extern struct ospf_if_params *ospf_get_if_params(struct interface *,
struct in_addr); struct in_addr);
extern void ospf_del_if_params(struct ospf_if_params *);
extern void ospf_free_if_params(struct interface *, struct in_addr); extern void ospf_free_if_params(struct interface *, struct in_addr);
extern void ospf_if_update_params(struct interface *, struct in_addr); extern void ospf_if_update_params(struct interface *, struct in_addr);

4
ospfd/ospf_main.c
View File

@ -22,6 +22,7 @@
#include <zebra.h> #include <zebra.h>
#include <lib/version.h> #include <lib/version.h>
#include "bfd.h"
#include "getopt.h" #include "getopt.h"
#include "thread.h" #include "thread.h"
#include "prefix.h" #include "prefix.h"
@ -98,6 +99,7 @@ static void sighup(void)
static void sigint(void) static void sigint(void)
{ {
zlog_notice("Terminating on signal"); zlog_notice("Terminating on signal");
bfd_protocol_integration_set_shutdown(true);
ospf_terminate(); ospf_terminate();
exit(0); exit(0);
} }
@ -214,7 +216,7 @@ int main(int argc, char **argv)
ospf_vty_clear_init(); ospf_vty_clear_init();
/* OSPF BFD init */ /* OSPF BFD init */
ospf_bfd_init(); ospf_bfd_init(master);
/* OSPF LDP IGP Sync init */ /* OSPF LDP IGP Sync init */
ospf_ldp_sync_init(); ospf_ldp_sync_init();

8
ospfd/ospf_neighbor.c
View File

@ -21,6 +21,7 @@
#include <zebra.h> #include <zebra.h>
#include "lib/bfd.h"
#include "linklist.h" #include "linklist.h"
#include "prefix.h" #include "prefix.h"
#include "memory.h" #include "memory.h"
@ -99,8 +100,6 @@ struct ospf_neighbor *ospf_nbr_new(struct ospf_interface *oi)
nbr->crypt_seqnum = 0; nbr->crypt_seqnum = 0;
ospf_bfd_info_nbr_create(oi, nbr);
/* Initialize GR Helper info*/ /* Initialize GR Helper info*/
nbr->gr_helper_info.recvd_grace_period = 0; nbr->gr_helper_info.recvd_grace_period = 0;
nbr->gr_helper_info.actual_grace_period = 0; nbr->gr_helper_info.actual_grace_period = 0;
@ -149,7 +148,7 @@ void ospf_nbr_free(struct ospf_neighbor *nbr)
/* Cancel all events. */ /* Thread lookup cost would be negligible. */ /* Cancel all events. */ /* Thread lookup cost would be negligible. */
thread_cancel_event(master, nbr); thread_cancel_event(master, nbr);
ospf_bfd_info_free(&nbr->bfd_info); bfd_sess_free(&nbr->bfd_session);
OSPF_NSM_TIMER_OFF(nbr->gr_helper_info.t_grace_timer); OSPF_NSM_TIMER_OFF(nbr->gr_helper_info.t_grace_timer);
@ -458,6 +457,9 @@ static struct ospf_neighbor *ospf_nbr_add(struct ospf_interface *oi,
if (ntohs(ospfh->auth_type) == OSPF_AUTH_CRYPTOGRAPHIC) if (ntohs(ospfh->auth_type) == OSPF_AUTH_CRYPTOGRAPHIC)
nbr->crypt_seqnum = ospfh->u.crypt.crypt_seqnum; nbr->crypt_seqnum = ospfh->u.crypt.crypt_seqnum;
/* Configure BFD if interface has it. */
ospf_neighbor_bfd_apply(nbr);
if (IS_DEBUG_OSPF_EVENT) if (IS_DEBUG_OSPF_EVENT)
zlog_debug("NSM[%s:%pI4]: start", IF_NAME(oi), zlog_debug("NSM[%s:%pI4]: start", IF_NAME(oi),
&nbr->router_id); &nbr->router_id);

2
ospfd/ospf_neighbor.h
View File

@ -88,7 +88,7 @@ struct ospf_neighbor {
uint32_t state_change; /* NSM state change counter */ uint32_t state_change; /* NSM state change counter */
/* BFD information */ /* BFD information */
void *bfd_info; struct bfd_session_params *bfd_session;
/* ospf graceful restart HELPER info */ /* ospf graceful restart HELPER info */
struct ospf_helper_info gr_helper_info; struct ospf_helper_info gr_helper_info;

1
ospfd/ospf_nsm.c
View File

@ -761,6 +761,7 @@ static void nsm_change_state(struct ospf_neighbor *nbr, int state)
if (state == NSM_Down) if (state == NSM_Down)
nbr->crypt_seqnum = 0; nbr->crypt_seqnum = 0;
if (nbr->bfd_session)
ospf_bfd_trigger_event(nbr, old_state, state); ospf_bfd_trigger_event(nbr, old_state, state);
/* Preserve old status? */ /* Preserve old status? */

7
ospfd/ospf_vty.c
View File

@ -3776,7 +3776,8 @@ static void show_ip_ospf_interface_sub(struct vty *vty, struct ospf *ospf,
" Neighbor Count is %d, Adjacent neighbor count is %d\n", " Neighbor Count is %d, Adjacent neighbor count is %d\n",
ospf_nbr_count(oi, 0), ospf_nbr_count(oi, 0),
ospf_nbr_count(oi, NSM_Full)); ospf_nbr_count(oi, NSM_Full));
ospf_bfd_interface_show(vty, ifp, json_interface_sub, use_json);
ospf_interface_bfd_show(vty, ifp, json_interface_sub);
/* OSPF Authentication information */ /* OSPF Authentication information */
ospf_interface_auth_show(vty, oi, json_interface_sub, use_json); ospf_interface_auth_show(vty, oi, json_interface_sub, use_json);
@ -5282,7 +5283,7 @@ static void show_ip_ospf_neighbor_detail_sub(struct vty *vty,
.helper_exit_reason)); .helper_exit_reason));
} }
ospf_bfd_show_info(vty, nbr->bfd_info, json_neigh, use_json, 0); bfd_sess_show(vty, json_neigh, nbr->bfd_session);
if (use_json) if (use_json)
json_object_array_add(json_neigh_array, json_neigh); json_object_array_add(json_neigh_array, json_neigh);
@ -11716,7 +11717,7 @@ static int config_write_interface_one(struct vty *vty, struct vrf *vrf)
} }
/* bfd print. */ /* bfd print. */
if (params && params->bfd_info) if (params && params->bfd_config)
ospf_bfd_write_config(vty, params); ospf_bfd_write_config(vty, params);
/* MTU ignore print. */ /* MTU ignore print. */

4
ospfd/ospfd.c
View File

@ -42,6 +42,7 @@
#include "ldp_sync.h" #include "ldp_sync.h"
#include "ospfd/ospfd.h" #include "ospfd/ospfd.h"
#include "ospfd/ospf_bfd.h"
#include "ospfd/ospf_network.h" #include "ospfd/ospf_network.h"
#include "ospfd/ospf_interface.h" #include "ospfd/ospf_interface.h"
#include "ospfd/ospf_ism.h" #include "ospfd/ospf_ism.h"
@ -1931,6 +1932,9 @@ static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma,
nbr_nbma->nbr = nbr; nbr_nbma->nbr = nbr;
/* Configure BFD if interface has it. */
ospf_neighbor_bfd_apply(nbr);
OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start);
} }
} }