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isisd: Three-Way-Handshake Configuration Exhibits Path Dependency on Point-to-Point Links

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Signed-off-by: Z-Yivon <202100460108@mail.sdu.edn.cn>
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Z-Yivon 2025-04-06 20:55:35 +08:00
parent 259ffe1dfe
commit 3f95a2b23e
1 changed files with 26 additions and 3 deletions
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29
isisd/isis_nb_config.c
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@ -4234,16 +4234,39 @@ int lib_interface_isis_password_password_type_modify(
* XPath:
* /frr-interface:lib/interface/frr-isisd:isis/disable-three-way-handshake
*/
int lib_interface_isis_disable_three_way_handshake_modify(
struct nb_cb_modify_args *args)
int lib_interface_isis_disable_three_way_handshake_modify(struct nb_cb_modify_args *args)
{
struct isis_circuit *circuit;
bool disable;
/* Check if we're in the apply phase */
if (args->event != NB_EV_APPLY)
return NB_OK;
circuit = nb_running_get_entry(args->dnode, NULL, true);
circuit->disable_threeway_adj = yang_dnode_get_bool(args->dnode, NULL);
disable = yang_dnode_get_bool(args->dnode, NULL);
/* If configuration hasn't changed, do nothing */
if (circuit->disable_threeway_adj == disable)
return NB_OK;
/* Update configuration value */
circuit->disable_threeway_adj = disable;
/*
* Only send additional hello under specific conditions:
* 1. It's a point-to-point circuit
* 2. The circuit is in active state
* 3. The circuit currently has no neighbors
*/
if (circuit->circ_type == CIRCUIT_T_P2P && circuit->state == C_STATE_UP &&
!circuit->u.p2p.neighbor) {
zlog_debug("ISIS-Evt: Sending hello on %s due to three-way-handshake config change",
circuit->interface->name);
/* Send a hello message to accelerate adjacency establishment */
send_hello(circuit, 0);
}
return NB_OK;
}