+// SPDX-License-Identifier: GPL-2.0-or-later
/* BGP carrying Label information
* Copyright (C) 2013 Cumulus Networks, Inc.
- *
- * This file is part of GNU Zebra.
- *
- * GNU Zebra 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, or (at your option) any
- * later version.
- *
- * GNU Zebra 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
*/
#ifndef _BGP_LABEL_H
#define BGP_WITHDRAW_LABEL 0x800000
#define BGP_PREVENT_VRF_2_VRF_LEAK 0xFFFFFFFE
-struct bgp_node;
+struct bgp_dest;
struct bgp_path_info;
struct peer;
extern int bgp_reg_for_label_callback(mpls_label_t new_label, void *labelid,
bool allocated);
-extern void bgp_reg_dereg_for_label(struct bgp_node *rn,
+extern void bgp_reg_dereg_for_label(struct bgp_dest *dest,
struct bgp_path_info *pi, bool reg);
extern int bgp_parse_fec_update(void);
-extern mpls_label_t bgp_adv_label(struct bgp_node *rn, struct bgp_path_info *pi,
- struct peer *to, afi_t afi, safi_t safi);
+extern mpls_label_t bgp_adv_label(struct bgp_dest *dest,
+ struct bgp_path_info *pi, struct peer *to,
+ afi_t afi, safi_t safi);
extern int bgp_nlri_parse_label(struct peer *peer, struct attr *attr,
struct bgp_nlri *packet);
return 0;
}
-static inline int bgp_is_valid_label(mpls_label_t *label)
+static inline int bgp_is_valid_label(const mpls_label_t *label)
{
uint8_t *t = (uint8_t *)label;
if (!t)
t[2] &= ~0x02;
}
-static inline void bgp_register_for_label(struct bgp_node *rn,
+static inline void bgp_register_for_label(struct bgp_dest *dest,
struct bgp_path_info *pi)
{
- bgp_reg_dereg_for_label(rn, pi, true);
+ bgp_reg_dereg_for_label(dest, pi, true);
}
-static inline void bgp_unregister_for_label(struct bgp_node *rn)
+static inline void bgp_unregister_for_label(struct bgp_dest *dest)
{
- bgp_reg_dereg_for_label(rn, NULL, false);
-}
-
-/* Label stream to value */
-static inline uint32_t label_pton(mpls_label_t *label)
-{
- uint8_t *t = (uint8_t *)label;
- return ((((unsigned int)t[0]) << 12) | (((unsigned int)t[1]) << 4)
- | ((unsigned int)((t[2] & 0xF0) >> 4)));
-}
-
-/* Encode label values */
-static inline void label_ntop(uint32_t l, int bos, mpls_label_t *label)
-{
- uint8_t *t = (uint8_t *)label;
- t[0] = ((l & 0x000FF000) >> 12);
- t[1] = ((l & 0x00000FF0) >> 4);
- t[2] = ((l & 0x0000000F) << 4);
- if (bos)
- t[2] |= 0x01;
+ bgp_reg_dereg_for_label(dest, NULL, false);
}
/* Return BOS value of label stream */