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#ifndef foosdlldphfoo
#define foosdlldphfoo
/***
This file is part of systemd.
Copyright (C) 2014 Tom Gundersen
Copyright (C) 2014 Susant Sahani
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <inttypes.h>
#include <net/ethernet.h>
#include <systemd/_sd-common.h>
#include <systemd/sd-event.h>
_SD_BEGIN_DECLARATIONS;
typedef struct sd_lldp sd_lldp;
typedef struct sd_lldp_neighbor sd_lldp_neighbor;
/* IEEE 802.3AB Clause 9: TLV Types */
enum {
SD_LLDP_TYPE_END = 0,
SD_LLDP_TYPE_CHASSIS_ID = 1,
SD_LLDP_TYPE_PORT_ID = 2,
SD_LLDP_TYPE_TTL = 3,
SD_LLDP_TYPE_PORT_DESCRIPTION = 4,
SD_LLDP_TYPE_SYSTEM_NAME = 5,
SD_LLDP_TYPE_SYSTEM_DESCRIPTION = 6,
SD_LLDP_TYPE_SYSTEM_CAPABILITIES = 7,
SD_LLDP_TYPE_MGMT_ADDRESS = 8,
SD_LLDP_TYPE_PRIVATE = 127,
};
/* IEEE 802.3AB Clause 9.5.2: Chassis subtypes */
enum {
SD_LLDP_CHASSIS_SUBTYPE_RESERVED = 0,
SD_LLDP_CHASSIS_SUBTYPE_CHASSIS_COMPONENT = 1,
SD_LLDP_CHASSIS_SUBTYPE_INTERFACE_ALIAS = 2,
SD_LLDP_CHASSIS_SUBTYPE_PORT_COMPONENT = 3,
SD_LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS = 4,
SD_LLDP_CHASSIS_SUBTYPE_NETWORK_ADDRESS = 5,
SD_LLDP_CHASSIS_SUBTYPE_INTERFACE_NAME = 6,
SD_LLDP_CHASSIS_SUBTYPE_LOCALLY_ASSIGNED = 7,
};
/* IEEE 802.3AB Clause 9.5.3: Port subtype */
enum {
SD_LLDP_PORT_SUBTYPE_RESERVED = 0,
SD_LLDP_PORT_SUBTYPE_INTERFACE_ALIAS = 1,
SD_LLDP_PORT_SUBTYPE_PORT_COMPONENT = 2,
SD_LLDP_PORT_SUBTYPE_MAC_ADDRESS = 3,
SD_LLDP_PORT_SUBTYPE_NETWORK_ADDRESS = 4,
SD_LLDP_PORT_SUBTYPE_INTERFACE_NAME = 5,
SD_LLDP_PORT_SUBTYPE_AGENT_CIRCUIT_ID = 6,
SD_LLDP_PORT_SUBTYPE_LOCALLY_ASSIGNED = 7,
};
enum {
SD_LLDP_SYSTEM_CAPABILITIES_OTHER = 1 << 0,
SD_LLDP_SYSTEM_CAPABILITIES_REPEATER = 1 << 1,
SD_LLDP_SYSTEM_CAPABILITIES_BRIDGE = 1 << 2,
SD_LLDP_SYSTEM_CAPABILITIES_WLAN_AP = 1 << 3,
SD_LLDP_SYSTEM_CAPABILITIES_ROUTER = 1 << 4,
SD_LLDP_SYSTEM_CAPABILITIES_PHONE = 1 << 5,
SD_LLDP_SYSTEM_CAPABILITIES_DOCSIS = 1 << 6,
SD_LLDP_SYSTEM_CAPABILITIES_STATION = 1 << 7,
SD_LLDP_SYSTEM_CAPABILITIES_CVLAN = 1 << 8,
SD_LLDP_SYSTEM_CAPABILITIES_SVLAN = 1 << 9,
SD_LLDP_SYSTEM_CAPABILITIES_TPMR = 1 << 10,
};
#define SD_LLDP_SYSTEM_CAPABILITIES_ALL ((uint16_t) -1)
#define SD_LLDP_SYSTEM_CAPABILITIES_ALL_ROUTERS \
((uint16_t) \
(SD_LLDP_SYSTEM_CAPABILITIES_REPEATER| \
SD_LLDP_SYSTEM_CAPABILITIES_BRIDGE| \
SD_LLDP_SYSTEM_CAPABILITIES_WLAN_AP| \
SD_LLDP_SYSTEM_CAPABILITIES_ROUTER| \
SD_LLDP_SYSTEM_CAPABILITIES_DOCSIS| \
SD_LLDP_SYSTEM_CAPABILITIES_CVLAN| \
SD_LLDP_SYSTEM_CAPABILITIES_SVLAN| \
SD_LLDP_SYSTEM_CAPABILITIES_TPMR))
#define SD_LLDP_OUI_802_1 (uint8_t[]) { 0x00, 0x80, 0xc2 }
#define SD_LLDP_OUI_802_3 (uint8_t[]) { 0x00, 0x12, 0x0f }
enum {
SD_LLDP_OUI_802_1_SUBTYPE_PORT_VLAN_ID = 1,
SD_LLDP_OUI_802_1_SUBTYPE_PORT_PROTOCOL_VLAN_ID = 2,
SD_LLDP_OUI_802_1_SUBTYPE_VLAN_NAME = 3,
SD_LLDP_OUI_802_1_SUBTYPE_PROTOCOL_IDENTITY = 4,
SD_LLDP_OUI_802_1_SUBTYPE_VID_USAGE_DIGEST = 5,
SD_LLDP_OUI_802_1_SUBTYPE_MANAGEMENT_VID = 6,
SD_LLDP_OUI_802_1_SUBTYPE_LINK_AGGREGATION = 7,
};
typedef enum sd_lldp_event {
SD_LLDP_EVENT_ADDED = 'a',
SD_LLDP_EVENT_REMOVED = 'r',
SD_LLDP_EVENT_UPDATED = 'u',
SD_LLDP_EVENT_REFRESHED = 'f',
} sd_lldp_event;
typedef void (*sd_lldp_callback_t)(sd_lldp *lldp, sd_lldp_event event, sd_lldp_neighbor *n, void *userdata);
int sd_lldp_new(sd_lldp **ret, int ifindex);
sd_lldp* sd_lldp_unref(sd_lldp *lldp);
int sd_lldp_start(sd_lldp *lldp);
int sd_lldp_stop(sd_lldp *lldp);
int sd_lldp_attach_event(sd_lldp *lldp, sd_event *event, int64_t priority);
int sd_lldp_detach_event(sd_lldp *lldp);
int sd_lldp_set_callback(sd_lldp *lldp, sd_lldp_callback_t cb, void *userdata);
/* Controls how much and what to store in the neighbors database */
int sd_lldp_set_neighbors_max(sd_lldp *lldp, uint64_t n);
int sd_lldp_match_capabilities(sd_lldp *lldp, uint16_t mask);
int sd_lldp_set_filter_address(sd_lldp *lldp, const struct ether_addr *address);
int sd_lldp_get_neighbors(sd_lldp *lldp, sd_lldp_neighbor ***neighbors);
int sd_lldp_neighbor_from_raw(sd_lldp_neighbor **ret, const void *raw, size_t raw_size);
sd_lldp_neighbor *sd_lldp_neighbor_ref(sd_lldp_neighbor *n);
sd_lldp_neighbor *sd_lldp_neighbor_unref(sd_lldp_neighbor *n);
/* Access to LLDP frame metadata */
int sd_lldp_neighbor_get_source_address(sd_lldp_neighbor *n, struct ether_addr* address);
int sd_lldp_neighbor_get_destination_address(sd_lldp_neighbor *n, struct ether_addr* address);
int sd_lldp_neighbor_get_raw(sd_lldp_neighbor *n, const void **ret, size_t *size);
/* High-level, direct, parsed out field access. These fields exist at most once, hence may be queried directly. */
int sd_lldp_neighbor_get_chassis_id(sd_lldp_neighbor *n, uint8_t *type, const void **ret, size_t *size);
int sd_lldp_neighbor_get_chassis_id_as_string(sd_lldp_neighbor *n, const char **ret);
int sd_lldp_neighbor_get_port_id(sd_lldp_neighbor *n, uint8_t *type, const void **ret, size_t *size);
int sd_lldp_neighbor_get_port_id_as_string(sd_lldp_neighbor *n, const char **ret);
int sd_lldp_neighbor_get_ttl(sd_lldp_neighbor *n, uint16_t *ret);
int sd_lldp_neighbor_get_system_name(sd_lldp_neighbor *n, const char **ret);
int sd_lldp_neighbor_get_system_description(sd_lldp_neighbor *n, const char **ret);
int sd_lldp_neighbor_get_port_description(sd_lldp_neighbor *n, const char **ret);
int sd_lldp_neighbor_get_system_capabilities(sd_lldp_neighbor *n, uint16_t *ret);
int sd_lldp_neighbor_get_enabled_capabilities(sd_lldp_neighbor *n, uint16_t *ret);
/* Low-level, iterative TLV access. This is for evertyhing else, it iteratively goes through all available TLVs
* (including the ones covered with the calls above), and allows multiple TLVs for the same fields. */
int sd_lldp_neighbor_tlv_rewind(sd_lldp_neighbor *n);
int sd_lldp_neighbor_tlv_next(sd_lldp_neighbor *n);
int sd_lldp_neighbor_tlv_get_type(sd_lldp_neighbor *n, uint8_t *type);
int sd_lldp_neighbor_tlv_is_type(sd_lldp_neighbor *n, uint8_t type);
int sd_lldp_neighbor_tlv_get_oui(sd_lldp_neighbor *n, uint8_t oui[3], uint8_t *subtype);
int sd_lldp_neighbor_tlv_is_oui(sd_lldp_neighbor *n, const uint8_t oui[3], uint8_t subtype);
int sd_lldp_neighbor_tlv_get_raw(sd_lldp_neighbor *n, const void **ret, size_t *size);
_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_lldp, sd_lldp_unref);
_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_lldp_neighbor, sd_lldp_neighbor_unref);
_SD_END_DECLARATIONS;
#endif
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