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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#ifndef __NM_LLDP_NEIGHBOR_H__
#define __NM_LLDP_NEIGHBOR_H__
#include "nm-lldp-rx.h"
struct _NMLldpNeighbor {
NMLldpNeighborID id;
/* Neighbor objects stay around as long as they are linked into an "NMLldpRX" object or n_ref > 0. */
struct _NMLldpRX *lldp_rx;
gint64 timestamp_usec;
gint64 until_usec;
int ref_count;
unsigned prioq_idx;
NMEtherAddr source_address;
NMEtherAddr destination_address;
/* The raw packet size. The data is appended to the object, accessible via LLDP_NEIGHBOR_RAW() */
size_t raw_size;
/* The current read index for the iterative TLV interface */
size_t rindex;
/* And a couple of fields parsed out. */
bool has_ttl : 1;
bool has_capabilities : 1;
bool has_port_vlan_id : 1;
uint16_t ttl;
uint16_t system_capabilities;
uint16_t enabled_capabilities;
char *port_description;
char *system_name;
char *system_description;
char *mud_url;
uint16_t port_vlan_id;
char *chassis_id_as_string;
char *port_id_as_string;
};
static inline void *
NM_LLDP_NEIGHBOR_RAW(const NMLldpNeighbor *n)
{
return (uint8_t *) n + NM_ALIGN(sizeof(NMLldpNeighbor));
}
static inline uint8_t
NM_LLDP_NEIGHBOR_TLV_TYPE(const NMLldpNeighbor *n)
{
return ((uint8_t *) NM_LLDP_NEIGHBOR_RAW(n))[n->rindex] >> 1;
}
static inline size_t
NM_LLDP_NEIGHBOR_TLV_LENGTH(const NMLldpNeighbor *n)
{
uint8_t *p;
p = (uint8_t *) NM_LLDP_NEIGHBOR_RAW(n) + n->rindex;
return p[1] + (((size_t) (p[0] & 1)) << 8);
}
static inline void *
NM_LLDP_NEIGHBOR_TLV_DATA(const NMLldpNeighbor *n)
{
return ((uint8_t *) NM_LLDP_NEIGHBOR_RAW(n)) + n->rindex + 2;
}
struct _NMLldpRX;
int nm_lldp_neighbor_prioq_compare_func(const void *a, const void *b);
void nm_lldp_neighbor_unlink(NMLldpNeighbor *n);
NMLldpNeighbor *nm_lldp_neighbor_new(size_t raw_size);
int nm_lldp_neighbor_parse(struct _NMLldpRX *lldp_rx, NMLldpNeighbor *n);
void nm_lldp_neighbor_start_ttl(NMLldpNeighbor *n);
#endif /* __NM_LLDP_NEIGHBOR_H__ */
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