Files
RTLPlayground/rtl837x_lldp.h
T
d00f 12b85025e3 lldp: announce shutdown with a TTL of 0
lldp off and port <n> lldp block went silent and left the neighbour
holding our entry until its TTL ran out, 120 s later. Send one LLDPDU
with a TTL of 0 on the ports that stop, the shutdown form 802.1AB
defines for this, before the transmit mask changes.
2026-10-13 04:00:32 +02:00

52 lines
1.4 KiB
C

#ifndef _LLDP_H_
#define _LLDP_H_
#include <stdint.h>
#define LLDP_MIN_ETHERNET_PAYLOAD_LENGTH 46
#define LLDP_ETHERTYPE 0x88cc
#define LLDP_ETHERTYPE_LENGTH 2
#define LLDP_MAX_FRAME 256
#define MAC_ADDR_LEN 6
#define LLDP_TX_INTERVAL_TICKS 6000
#define LLDP_PORT_ID_TLV_TYPE 2
#define LLDP_PORT_ID_PREFIX "Port "
#define LLDP_PORT_ID_PREFIX_LENGTH 5
#define LLDP_PORT_ID_TLV_LENGTH (1 + LLDP_PORT_ID_PREFIX_LENGTH + 1)
#define LLDP_PORT_ID_TLV_SUBTYPE 0x05
#define LLDP_TTL_TLV_TYPE 3
#define LLDP_TTL_TLV_LENGTH 2
#define LLDP_TTL_TTL_SECONDS 120
#define LLDP_CHASSIS_ID_TLV_TYPE 1
#define LLDP_CHASSIS_ID_TLV_LENGTH 7
#define LLDP_CHASSIS_ID_TLV_SUBTYPE 4
#define LLDP_SYSNAME_TLV_TYPE 5
#define LLDP_SYSDESC_TLV_TYPE 6
#define LLDP_CAPABILITIES_TLV_TYPE 7
#define LLDP_CAPABILITIES_TLV_LENGTH 4
#define LLDP_CAPABILITY_BRIDGE 0x0004
#define LLDP_MGMT_ADDR_TLV_TYPE 8
#define LLDP_MGMT_ADDR_TLV_LENGTH 12
#define LLDP_MGMT_ADDR_STR_LENGTH 5
#define LLDP_MGMT_ADDR_SUBTYPE_IPV4 1
#define LLDP_MGMT_IF_NUMBERING_UNKNOWN 1
#define LLDP_MAX_PAYLOAD 128
void lldp_init(void) __banked;
void lldp_tick(void) __banked;
void lldp_send(void) __banked;
void lldp_shutdown(uint16_t ports) __banked;
void lldp_set_addresses(void) __banked;
void lldp_set_rtl_wrapper(void) __banked;
uint8_t lldp_sysname(__xdata uint8_t *p) __banked;
uint8_t lldp_sysdesc(__xdata uint8_t *p) __banked;
#endif