/src/frr/bgpd/bgp_label.h

Source (jump to first uncovered line)
// SPDX-License-Identifier: GPL-2.0-or-later
/* BGP carrying Label information
 * Copyright (C) 2013 Cumulus Networks, Inc.
 */

#ifndef _BGP_LABEL_H
#define _BGP_LABEL_H

#define BGP_LABEL_BYTES 3
#define BGP_LABEL_BITS 24
#define BGP_WITHDRAW_LABEL 0x800000
#define BGP_PREVENT_VRF_2_VRF_LEAK 0xFFFFFFFE

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_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_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);

static inline int bgp_labeled_safi(safi_t safi)
{
  /* NOTE: This API really says a label (tag) MAY be present. Not all EVPN
   * routes will have a label.
   */
  if ((safi == SAFI_LABELED_UNICAST) || (safi == SAFI_MPLS_VPN)
      || (safi == SAFI_EVPN))
    return 1;
  return 0;
}

static inline int bgp_is_withdraw_label(mpls_label_t *label)
{
  uint8_t *pkt = (uint8_t *)label;

  /* The check on pkt[2] for 0x00 or 0x02 is in case bgp_set_valid_label()
   * was called on the withdraw label */
  if (((pkt[0] == 0x80) || (pkt[0] == 0x00)) && (pkt[1] == 0x00)
      && ((pkt[2] == 0x00) || (pkt[2] == 0x02)))
    return 1;
  return 0;
}

static inline int bgp_is_valid_label(const mpls_label_t *label)
{
  uint8_t *t = (uint8_t *)label;
  if (!t)
    return 0;
  return (t[2] & 0x02);
}

static inline void bgp_set_valid_label(mpls_label_t *label)
{
  uint8_t *t = (uint8_t *)label;
  if (t)
    t[2] |= 0x02;
}

static inline void bgp_unset_valid_label(mpls_label_t *label)
{
  uint8_t *t = (uint8_t *)label;
  if (t)
    t[2] &= ~0x02;
}

static inline void bgp_register_for_label(struct bgp_dest *dest,
            struct bgp_path_info *pi)
{
  bgp_reg_dereg_for_label(dest, pi, true);
}

static inline void bgp_unregister_for_label(struct bgp_dest *dest)
{
  bgp_reg_dereg_for_label(dest, NULL, false);
}

/* Return BOS value of label stream */
static inline uint8_t label_bos(mpls_label_t *label)
{
  uint8_t *t = (uint8_t *)label;
  return (t[2] & 0x01);
};

#endif /* _BGP_LABEL_H */

Line	Count	Source (jump to first uncovered line)
1		// SPDX-License-Identifier: GPL-2.0-or-later
2		/* BGP carrying Label information
3		* Copyright (C) 2013 Cumulus Networks, Inc.
4		*/
5
6		#ifndef _BGP_LABEL_H
7		#define _BGP_LABEL_H
8
9	0	#define BGP_LABEL_BYTES 3
10		#define BGP_LABEL_BITS 24
11		#define BGP_WITHDRAW_LABEL 0x800000
12	0	#define BGP_PREVENT_VRF_2_VRF_LEAK 0xFFFFFFFE
13
14		struct bgp_dest;
15		struct bgp_path_info;
16		struct peer;
17
18		extern int bgp_reg_for_label_callback(mpls_label_t new_label, void *labelid,
19		bool allocated);
20		extern void bgp_reg_dereg_for_label(struct bgp_dest *dest,
21		struct bgp_path_info *pi, bool reg);
22		extern int bgp_parse_fec_update(void);
23		extern mpls_label_t bgp_adv_label(struct bgp_dest *dest,
24		struct bgp_path_info pi, struct peer to,
25		afi_t afi, safi_t safi);
26
27		extern int bgp_nlri_parse_label(struct peer peer, struct attr attr,
28		struct bgp_nlri *packet);
29
30		static inline int bgp_labeled_safi(safi_t safi)
31	0	{
32		/* NOTE: This API really says a label (tag) MAY be present. Not all EVPN
33		* routes will have a label.
34		*/
35	0	if ((safi == SAFI_LABELED_UNICAST) \|\| (safi == SAFI_MPLS_VPN)
36	0	\|\| (safi == SAFI_EVPN))
37	0	return 1;
38	0	return 0;
39	0	} Unexecuted instantiation: bgp_attr.c:bgp_labeled_safi Unexecuted instantiation: bgp_debug.c:bgp_labeled_safi Unexecuted instantiation: bgp_evpn.c:bgp_labeled_safi Unexecuted instantiation: bgp_evpn_mh.c:bgp_labeled_safi Unexecuted instantiation: bgp_mplsvpn.c:bgp_labeled_safi Unexecuted instantiation: bgp_packet.c:bgp_labeled_safi Unexecuted instantiation: bgp_route.c:bgp_labeled_safi Unexecuted instantiation: bgp_updgrp_packet.c:bgp_labeled_safi Unexecuted instantiation: bgp_zebra.c:bgp_labeled_safi Unexecuted instantiation: rfapi_vty.c:bgp_labeled_safi Unexecuted instantiation: bgp_label.c:bgp_labeled_safi
40
41		static inline int bgp_is_withdraw_label(mpls_label_t *label)
42	0	{
43	0	uint8_t pkt = (uint8_t )label;
44
45		/* The check on pkt[2] for 0x00 or 0x02 is in case bgp_set_valid_label()
46		* was called on the withdraw label */
47	0	if (((pkt[0] == 0x80) \|\| (pkt[0] == 0x00)) && (pkt[1] == 0x00)
48	0	&& ((pkt[2] == 0x00) \|\| (pkt[2] == 0x02)))
49	0	return 1;
50	0	return 0;
51	0	} Unexecuted instantiation: bgp_attr.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_debug.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_evpn.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_evpn_mh.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_mplsvpn.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_packet.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_route.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_updgrp_packet.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_zebra.c:bgp_is_withdraw_label Unexecuted instantiation: rfapi_vty.c:bgp_is_withdraw_label Unexecuted instantiation: bgp_label.c:bgp_is_withdraw_label
52
53		static inline int bgp_is_valid_label(const mpls_label_t *label)
54	0	{
55	0	uint8_t t = (uint8_t )label;
56	0	if (!t)
57	0	return 0;
58	0	return (t[2] & 0x02);
59	0	} Unexecuted instantiation: bgp_attr.c:bgp_is_valid_label Unexecuted instantiation: bgp_debug.c:bgp_is_valid_label Unexecuted instantiation: bgp_evpn.c:bgp_is_valid_label Unexecuted instantiation: bgp_evpn_mh.c:bgp_is_valid_label Unexecuted instantiation: bgp_mplsvpn.c:bgp_is_valid_label Unexecuted instantiation: bgp_packet.c:bgp_is_valid_label Unexecuted instantiation: bgp_route.c:bgp_is_valid_label Unexecuted instantiation: bgp_updgrp_packet.c:bgp_is_valid_label Unexecuted instantiation: bgp_zebra.c:bgp_is_valid_label Unexecuted instantiation: rfapi_vty.c:bgp_is_valid_label Unexecuted instantiation: bgp_label.c:bgp_is_valid_label
60
61		static inline void bgp_set_valid_label(mpls_label_t *label)
62	0	{
63	0	uint8_t t = (uint8_t )label;
64	0	if (t)
65	0	t[2] \|= 0x02;
66	0	} Unexecuted instantiation: bgp_attr.c:bgp_set_valid_label Unexecuted instantiation: bgp_debug.c:bgp_set_valid_label Unexecuted instantiation: bgp_evpn.c:bgp_set_valid_label Unexecuted instantiation: bgp_evpn_mh.c:bgp_set_valid_label Unexecuted instantiation: bgp_mplsvpn.c:bgp_set_valid_label Unexecuted instantiation: bgp_packet.c:bgp_set_valid_label Unexecuted instantiation: bgp_route.c:bgp_set_valid_label Unexecuted instantiation: bgp_updgrp_packet.c:bgp_set_valid_label Unexecuted instantiation: bgp_zebra.c:bgp_set_valid_label Unexecuted instantiation: rfapi_vty.c:bgp_set_valid_label Unexecuted instantiation: bgp_label.c:bgp_set_valid_label
67
68		static inline void bgp_unset_valid_label(mpls_label_t *label)
69	0	{
70	0	uint8_t t = (uint8_t )label;
71	0	if (t)
72	0	t[2] &= ~0x02;
73	0	} Unexecuted instantiation: bgp_attr.c:bgp_unset_valid_label Unexecuted instantiation: bgp_debug.c:bgp_unset_valid_label Unexecuted instantiation: bgp_evpn.c:bgp_unset_valid_label Unexecuted instantiation: bgp_evpn_mh.c:bgp_unset_valid_label Unexecuted instantiation: bgp_mplsvpn.c:bgp_unset_valid_label Unexecuted instantiation: bgp_packet.c:bgp_unset_valid_label Unexecuted instantiation: bgp_route.c:bgp_unset_valid_label Unexecuted instantiation: bgp_updgrp_packet.c:bgp_unset_valid_label Unexecuted instantiation: bgp_zebra.c:bgp_unset_valid_label Unexecuted instantiation: rfapi_vty.c:bgp_unset_valid_label Unexecuted instantiation: bgp_label.c:bgp_unset_valid_label
74
75		static inline void bgp_register_for_label(struct bgp_dest *dest,
76		struct bgp_path_info *pi)
77	0	{
78	0	bgp_reg_dereg_for_label(dest, pi, true);
79	0	} Unexecuted instantiation: bgp_attr.c:bgp_register_for_label Unexecuted instantiation: bgp_debug.c:bgp_register_for_label Unexecuted instantiation: bgp_evpn.c:bgp_register_for_label Unexecuted instantiation: bgp_evpn_mh.c:bgp_register_for_label Unexecuted instantiation: bgp_mplsvpn.c:bgp_register_for_label Unexecuted instantiation: bgp_packet.c:bgp_register_for_label Unexecuted instantiation: bgp_route.c:bgp_register_for_label Unexecuted instantiation: bgp_updgrp_packet.c:bgp_register_for_label Unexecuted instantiation: bgp_zebra.c:bgp_register_for_label Unexecuted instantiation: rfapi_vty.c:bgp_register_for_label Unexecuted instantiation: bgp_label.c:bgp_register_for_label
80
81		static inline void bgp_unregister_for_label(struct bgp_dest *dest)
82	0	{
83	0	bgp_reg_dereg_for_label(dest, NULL, false);
84	0	} Unexecuted instantiation: bgp_attr.c:bgp_unregister_for_label Unexecuted instantiation: bgp_debug.c:bgp_unregister_for_label Unexecuted instantiation: bgp_evpn.c:bgp_unregister_for_label Unexecuted instantiation: bgp_evpn_mh.c:bgp_unregister_for_label Unexecuted instantiation: bgp_mplsvpn.c:bgp_unregister_for_label Unexecuted instantiation: bgp_packet.c:bgp_unregister_for_label Unexecuted instantiation: bgp_route.c:bgp_unregister_for_label Unexecuted instantiation: bgp_updgrp_packet.c:bgp_unregister_for_label Unexecuted instantiation: bgp_zebra.c:bgp_unregister_for_label Unexecuted instantiation: rfapi_vty.c:bgp_unregister_for_label Unexecuted instantiation: bgp_label.c:bgp_unregister_for_label
85
86		/* Return BOS value of label stream */
87		static inline uint8_t label_bos(mpls_label_t *label)
88	0	{
89	0	uint8_t t = (uint8_t )label;
90	0	return (t[2] & 0x01);
91	0	}; Unexecuted instantiation: bgp_attr.c:label_bos Unexecuted instantiation: bgp_debug.c:label_bos Unexecuted instantiation: bgp_evpn.c:label_bos Unexecuted instantiation: bgp_evpn_mh.c:label_bos Unexecuted instantiation: bgp_mplsvpn.c:label_bos Unexecuted instantiation: bgp_packet.c:label_bos Unexecuted instantiation: bgp_route.c:label_bos Unexecuted instantiation: bgp_updgrp_packet.c:label_bos Unexecuted instantiation: bgp_zebra.c:label_bos Unexecuted instantiation: rfapi_vty.c:label_bos Unexecuted instantiation: bgp_label.c:label_bos
92
93		#endif /* _BGP_LABEL_H */

Coverage Report

Created: 2025-08-28 06:29