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/*
* Copyright (c) 2011-2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __included_lldp_protocol_h__
#define __included_lldp_protocol_h__
/**
* @file
* @brief LLDP protocol declarations
*/
#include <vnet/srp/packet.h>
/*
* optional TLV codes.
*/
#define foreach_lldp_optional_tlv_type(F) \
F (4, port_desc, "Port Description") \
F (5, sys_name, "System name") \
F (6, sys_desc, "System Description") \
F (7, sys_caps, "System Capabilities") \
F (8, mgmt_addr, "Management Address") \
F (127, org_spec, "Organizationally Specific TLV")
/*
* all TLV codes.
*/
#define foreach_lldp_tlv_type(F) \
F (0, pdu_end, "End of LLDPDU") \
F (1, chassis_id, "Chassis ID") \
F (2, port_id, "Port ID") \
F (3, ttl, "Time To Live") \
foreach_lldp_optional_tlv_type (F)
#define LLDP_TLV_NAME(t) LLDP_TLV_##t
typedef enum
{
#define F(n, t, s) LLDP_TLV_NAME (t) = n,
foreach_lldp_tlv_type (F)
#undef F
} lldp_tlv_code_t;
struct lldp_tlv_head
{
u8 byte1; /* contains TLV code in the upper 7 bits + MSB of length */
u8 byte2; /* contains the lower bits of length */
};
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
struct lldp_tlv_head head;
u8 v[0];
}) lldp_tlv_t;
/* *INDENT-ON* */
lldp_tlv_code_t lldp_tlv_get_code (const lldp_tlv_t * tlv);
void lldp_tlv_set_code (lldp_tlv_t * tlv, lldp_tlv_code_t code);
u16 lldp_tlv_get_length (const lldp_tlv_t * tlv);
void lldp_tlv_set_length (lldp_tlv_t * tlv, u16 length);
#define foreach_chassis_id_subtype(F) \
F (0, reserved, "Reserved") \
F (1, chassis_comp, "Chassis component") \
F (2, intf_alias, "Interface alias") \
F (3, port_comp, "Port component") \
F (4, mac_addr, "MAC address") \
F (5, net_addr, "Network address") \
F (6, intf_name, "Interface name") \
F (7, local, "Locally assigned")
#define LLDP_CHASS_ID_SUBTYPE_NAME(t) LLDP_CHASS_ID_SUBTYPE_##t
#define LLDP_MIN_CHASS_ID_LEN (1)
#define LLDP_MAX_CHASS_ID_LEN (255)
typedef enum
{
#define F(n, t, s) LLDP_CHASS_ID_SUBTYPE_NAME (t) = n,
foreach_chassis_id_subtype (F)
#undef F
} lldp_chassis_id_subtype_t;
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
struct lldp_tlv_head head;
u8 subtype;
u8 id[0];
}) lldp_chassis_id_tlv_t;
/* *INDENT-ON* */
#define foreach_port_id_subtype(F) \
F (0, reserved, "Reserved") \
F (1, intf_alias, "Interface alias") \
F (2, port_comp, "Port component") \
F (3, mac_addr, "MAC address") \
F (4, net_addr, "Network address") \
F (5, intf_name, "Interface name") \
F (6, agent_circuit_id, "Agent circuit ID") \
F (7, local, "Locally assigned")
#define LLDP_PORT_ID_SUBTYPE_NAME(t) LLDP_PORT_ID_SUBTYPE_##t
#define LLDP_MIN_PORT_ID_LEN (1)
#define LLDP_MAX_PORT_ID_LEN (255)
typedef enum
{
#define F(n, t, s) LLDP_PORT_ID_SUBTYPE_NAME (t) = n,
foreach_port_id_subtype (F)
#undef F
} lldp_port_id_subtype_t;
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
struct lldp_tlv_head head;
u8 subtype;
u8 id[0];
}) lldp_port_id_tlv_t;
typedef CLIB_PACKED (struct {
struct lldp_tlv_head head;
u16 ttl;
}) lldp_ttl_tlv_t;
/* *INDENT-ON* */
#endif /* __included_lldp_protocol_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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