1 /* -*- mode: c; c-file-style: "openbsd" -*- */
3 * Copyright (c) 2015 Nicira, Inc.
4 * Copyright (c) 2008 Vincent Bernat <bernat@luffy.cx>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 #include <netinet/if_ether.h>
24 #include <netinet/in.h>
29 #include <sys/types.h>
30 #include "dp-packet.h"
32 #include "lldpd-structs.h"
35 #include "openvswitch/vlog.h"
37 #define ETHERTYPE_LLDP 0x88cc
39 #define LLDPD_TX_INTERVAL 5
40 #define LLDPD_TX_HOLD 4
41 #define LLDPD_TTL (LLDPD_TX_INTERVAL * LLDPD_TX_HOLD)
43 #define PROTO_SEND_SIG struct lldpd *, struct lldpd_hardware *,struct dp_packet *
44 #define PROTO_DECODE_SIG struct lldpd *, char *, int, struct lldpd_hardware *,\
45 struct lldpd_chassis **, struct lldpd_port **
46 #define PROTO_GUESS_SIG char *, int
49 int mode; /* > 0 mode identifier (unique per protocol) */
50 int enabled; /* Is this protocol enabled? */
51 char *name; /* Name of protocol */
52 char arg; /* Argument to enable this protocol */
53 int(*send)(PROTO_SEND_SIG); /* How to send a frame */
54 int(*decode)(PROTO_DECODE_SIG); /* How to decode a frame */
55 int(*guess)(PROTO_GUESS_SIG); /* Can be NULL, use MAC address in this
58 u_int8_t mac[ETH_ADDR_LEN]; /* Destination MAC address used by this
63 #define SMART_HIDDEN(port) (port->p_hidden_in)
66 struct lldpd_config g_config;
67 struct protocol *g_protocols;
70 struct ovs_list g_chassis; /* Contains "struct lldp_chassis". */
71 struct ovs_list g_hardware; /* Contains "struct lldpd_hardware". */
74 static inline struct lldpd_hardware *
75 lldpd_first_hardware(struct lldpd *lldpd)
77 return CONTAINER_OF(list_front(&lldpd->g_hardware),
78 struct lldpd_hardware, h_entries);
82 struct lldpd_hardware *lldpd_get_hardware(struct lldpd *,
83 char *, int, struct lldpd_ops *);
84 struct lldpd_hardware *lldpd_alloc_hardware(struct lldpd *, char *, int);
85 void lldpd_hardware_cleanup(struct lldpd*, struct lldpd_hardware *);
86 struct lldpd_mgmt *lldpd_alloc_mgmt(int family, void *addr, size_t addrsize,
88 void lldpd_recv(struct lldpd *, struct lldpd_hardware *, char *, size_t);
89 uint32_t lldpd_send(struct lldpd_hardware *, struct dp_packet *);
90 void lldpd_loop(struct lldpd *);
92 int lldpd_main(int, char **);
93 void lldpd_update_localports(struct lldpd *);
94 void lldpd_cleanup(struct lldpd *);
96 void lldpd_assign_cfg_to_protocols(struct lldpd *);
99 int lldp_send(PROTO_SEND_SIG);
100 int lldp_decode(PROTO_DECODE_SIG);
102 #endif /* _LLDPD_H */