From 2c7cac91ed6e7db0f6937923d2b57f97dbdbc337 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:53:30 +0200 Subject: Adding upstream version 8.4.4. Signed-off-by: Daniel Baumann --- lib/ldp_sync.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 lib/ldp_sync.c (limited to 'lib/ldp_sync.c') diff --git a/lib/ldp_sync.c b/lib/ldp_sync.c new file mode 100644 index 0000000..8912d15 --- /dev/null +++ b/lib/ldp_sync.c @@ -0,0 +1,91 @@ +/* + * ldp_sync.c: LDP-SYNC handling routines + * Copyright (C) 2020 Volta Networks, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include + +#include "command.h" +#include "memory.h" +#include "prefix.h" +#include "log.h" +#include "thread.h" +#include "stream.h" +#include "zclient.h" +#include "table.h" +#include "vty.h" +#include "ldp_sync.h" + +/* Library code */ +DEFINE_MTYPE_STATIC(LIB, LDP_SYNC_INFO, "LDP SYNC info"); + +/* + * ldp_sync_info_create - Allocate the LDP_SYNC information + */ +struct ldp_sync_info *ldp_sync_info_create(void) +{ + struct ldp_sync_info *ldp_sync_info; + + ldp_sync_info = XCALLOC(MTYPE_LDP_SYNC_INFO, + sizeof(struct ldp_sync_info)); + assert(ldp_sync_info); + + ldp_sync_info->flags = 0; + ldp_sync_info->enabled = LDP_IGP_SYNC_DEFAULT; + ldp_sync_info->state = LDP_IGP_SYNC_STATE_NOT_REQUIRED; + ldp_sync_info->holddown = LDP_IGP_SYNC_HOLDDOWN_DEFAULT; + ldp_sync_info->t_holddown = NULL; + return ldp_sync_info; +} + +/* + * ldp_sync_info_free - Free the LDP_SYNC information. + */ +void ldp_sync_info_free(struct ldp_sync_info **ldp_sync_info) +{ + if (*ldp_sync_info) + XFREE(MTYPE_LDP_SYNC_INFO, *ldp_sync_info); +} + +bool ldp_sync_if_is_enabled(struct ldp_sync_info *ldp_sync_info) +{ + /* return true if LDP-SYNC is configured on this interface */ + if (ldp_sync_info && + ldp_sync_info->enabled == LDP_IGP_SYNC_ENABLED && + ldp_sync_info->state == LDP_IGP_SYNC_STATE_REQUIRED_NOT_UP) + return true; + + return false; +} + +bool ldp_sync_if_down(struct ldp_sync_info *ldp_sync_info) +{ + /* Stop LDP-SYNC on this interface: + * if holddown timer is running stop it + * update state + */ + if (ldp_sync_info && ldp_sync_info->enabled == LDP_IGP_SYNC_ENABLED) { + THREAD_OFF(ldp_sync_info->t_holddown); + + if (ldp_sync_info->state == LDP_IGP_SYNC_STATE_REQUIRED_UP) + ldp_sync_info->state = + LDP_IGP_SYNC_STATE_REQUIRED_NOT_UP; + return true; + } + + return false; +} -- cgit v1.2.3