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Diffstat (limited to 'src/vnet/lldp/lldp_protocol.h')
-rw-r--r-- | src/vnet/lldp/lldp_protocol.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/vnet/lldp/lldp_protocol.h b/src/vnet/lldp/lldp_protocol.h new file mode 100644 index 00000000000..e641b26e20d --- /dev/null +++ b/src/vnet/lldp/lldp_protocol.h @@ -0,0 +1,142 @@ +/* + * 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: + */ |