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1 | /* -*- mode: c; c-file-style: "openbsd" -*- */ |
2 | /* | |
809fd54d | 3 | * Copyright (c) 2015 Nicira, Inc. |
be53a5c4 DF |
4 | * Copyright (c) 2008 Vincent Bernat <bernat@luffy.cx> |
5 | * | |
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. | |
9 | * | |
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. | |
17 | */ | |
18 | ||
19 | #ifndef _LLDPD_H | |
20 | #define _LLDPD_H | |
21 | ||
22 | #ifndef _WIN32 | |
be53a5c4 DF |
23 | #include <netinet/in.h> |
24 | #endif | |
25 | #include <stdlib.h> | |
26 | #include <stddef.h> | |
27 | #include <string.h> | |
28 | #include <sys/types.h> | |
0477baa9 | 29 | #include "dp-packet.h" |
b19bab5b | 30 | #include "openvswitch/list.h" |
be53a5c4 DF |
31 | #include "lldpd-structs.h" |
32 | #include "lldp-tlv.h" | |
33 | #include "packets.h" | |
34 | #include "openvswitch/vlog.h" | |
be53a5c4 | 35 | |
be53a5c4 DF |
36 | #define ETHERTYPE_LLDP 0x88cc |
37 | ||
be53a5c4 DF |
38 | #define LLDPD_TX_INTERVAL 5 |
39 | #define LLDPD_TX_HOLD 4 | |
ac211bdd | 40 | #define LLDPD_TTL (LLDPD_TX_INTERVAL * LLDPD_TX_HOLD) |
be53a5c4 | 41 | |
0477baa9 | 42 | #define PROTO_SEND_SIG struct lldpd *, struct lldpd_hardware *,struct dp_packet * |
be53a5c4 DF |
43 | #define PROTO_DECODE_SIG struct lldpd *, char *, int, struct lldpd_hardware *,\ |
44 | struct lldpd_chassis **, struct lldpd_port ** | |
45 | #define PROTO_GUESS_SIG char *, int | |
46 | ||
be53a5c4 DF |
47 | struct protocol { |
48 | int mode; /* > 0 mode identifier (unique per protocol) */ | |
49 | int enabled; /* Is this protocol enabled? */ | |
50 | char *name; /* Name of protocol */ | |
51 | char arg; /* Argument to enable this protocol */ | |
52 | int(*send)(PROTO_SEND_SIG); /* How to send a frame */ | |
53 | int(*decode)(PROTO_DECODE_SIG); /* How to decode a frame */ | |
54 | int(*guess)(PROTO_GUESS_SIG); /* Can be NULL, use MAC address in this | |
55 | * case | |
56 | */ | |
74ff3298 | 57 | struct eth_addr mac; /* Destination MAC address used by this protocol */ |
be53a5c4 DF |
58 | }; |
59 | ||
60 | #define SMART_HIDDEN(port) (port->p_hidden_in) | |
61 | ||
62 | struct lldpd { | |
be53a5c4 DF |
63 | struct lldpd_config g_config; |
64 | struct protocol *g_protocols; | |
65 | int g_lastrid; | |
66 | ||
e87a8e67 | 67 | struct ovs_list g_chassis; /* Contains "struct lldp_chassis". */ |
2cbb2d90 | 68 | struct ovs_list g_hardware; /* Contains "struct lldpd_hardware". */ |
be53a5c4 DF |
69 | }; |
70 | ||
2cbb2d90 BP |
71 | static inline struct lldpd_hardware * |
72 | lldpd_first_hardware(struct lldpd *lldpd) | |
73 | { | |
417e7e66 | 74 | return CONTAINER_OF(ovs_list_front(&lldpd->g_hardware), |
2cbb2d90 BP |
75 | struct lldpd_hardware, h_entries); |
76 | } | |
77 | ||
be53a5c4 DF |
78 | /* lldpd.c */ |
79 | struct lldpd_hardware *lldpd_get_hardware(struct lldpd *, | |
80 | char *, int, struct lldpd_ops *); | |
81 | struct lldpd_hardware *lldpd_alloc_hardware(struct lldpd *, char *, int); | |
82 | void lldpd_hardware_cleanup(struct lldpd*, struct lldpd_hardware *); | |
83 | struct lldpd_mgmt *lldpd_alloc_mgmt(int family, void *addr, size_t addrsize, | |
84 | u_int32_t iface); | |
85 | void lldpd_recv(struct lldpd *, struct lldpd_hardware *, char *, size_t); | |
0477baa9 | 86 | uint32_t lldpd_send(struct lldpd_hardware *, struct dp_packet *); |
be53a5c4 DF |
87 | void lldpd_loop(struct lldpd *); |
88 | ||
89 | int lldpd_main(int, char **); | |
90 | void lldpd_update_localports(struct lldpd *); | |
91 | void lldpd_cleanup(struct lldpd *); | |
92 | ||
93 | void lldpd_assign_cfg_to_protocols(struct lldpd *); | |
94 | ||
95 | /* lldp.c */ | |
96 | int lldp_send(PROTO_SEND_SIG); | |
97 | int lldp_decode(PROTO_DECODE_SIG); | |
98 | ||
99 | #endif /* _LLDPD_H */ |