/* * 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: */