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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright (C) 2014 Tom Gundersen | |
7 | Copyright (C) 2014 Susant Sahani | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
23 | #pragma once | |
24 | ||
25 | #include "log.h" | |
26 | #include "list.h" | |
27 | #include "refcnt.h" | |
28 | #include "lldp-tlv.h" | |
29 | #include "prioq.h" | |
30 | ||
31 | typedef struct lldp_neighbour_port lldp_neighbour_port; | |
32 | typedef struct lldp_chassis lldp_chassis; | |
33 | typedef struct lldp_chassis_id lldp_chassis_id; | |
7a6f1457 | 34 | typedef struct lldp_agent_statitics lldp_agent_statitics; |
ad1ad5c8 SS |
35 | |
36 | struct lldp_neighbour_port { | |
37 | uint8_t type; | |
38 | uint8_t *data; | |
39 | ||
40 | uint16_t length; | |
41 | usec_t until; | |
42 | ||
43 | unsigned prioq_idx; | |
44 | ||
45 | lldp_chassis *c; | |
46 | tlv_packet *packet; | |
47 | ||
48 | LIST_FIELDS(lldp_neighbour_port, port); | |
49 | }; | |
50 | ||
51 | int lldp_neighbour_port_new(lldp_chassis *c, tlv_packet *tlv, lldp_neighbour_port **ret); | |
52 | void lldp_neighbour_port_free(lldp_neighbour_port *p); | |
53 | void lldp_neighbour_port_remove_and_free(lldp_neighbour_port *p); | |
54 | ||
55 | DEFINE_TRIVIAL_CLEANUP_FUNC(lldp_neighbour_port *, lldp_neighbour_port_free); | |
56 | #define _cleanup_lldp_neighbour_port_free_ _cleanup_(lldp_neighbour_port_freep) | |
57 | ||
58 | struct lldp_chassis_id { | |
59 | uint8_t type; | |
60 | uint16_t length; | |
61 | ||
62 | uint8_t *data; | |
63 | }; | |
64 | ||
65 | struct lldp_chassis { | |
66 | RefCount n_ref; | |
67 | ||
68 | lldp_chassis_id chassis_id; | |
69 | ||
70 | Prioq *by_expiry; | |
71 | Hashmap *neighbour_mib; | |
72 | ||
73 | LIST_HEAD(lldp_neighbour_port, ports); | |
74 | }; | |
75 | ||
76 | int lldp_chassis_new(tlv_packet *tlv, | |
77 | Prioq *by_expiry, | |
78 | Hashmap *neighbour_mib, | |
79 | lldp_chassis **ret); | |
80 | ||
81 | void lldp_chassis_free(lldp_chassis *c); | |
82 | ||
83 | DEFINE_TRIVIAL_CLEANUP_FUNC(lldp_chassis *, lldp_chassis_free); | |
84 | #define _cleanup_lldp_chassis_free_ _cleanup_(lldp_chassis_freep) | |
85 | ||
86 | int lldp_mib_update_objects(lldp_chassis *c, tlv_packet *tlv); | |
87 | int lldp_mib_add_objects(Prioq *by_expiry, Hashmap *neighbour_mib, tlv_packet *tlv); | |
88 | int lldp_mib_remove_objects(lldp_chassis *c, tlv_packet *tlv); | |
89 | ||
90 | int lldp_read_chassis_id(tlv_packet *tlv, uint8_t *type, uint16_t *length, uint8_t **data); | |
91 | int lldp_read_port_id(tlv_packet *tlv, uint8_t *type, uint16_t *length, uint8_t **data); | |
92 | int lldp_read_ttl(tlv_packet *tlv, uint16_t *ttl); | |
49699bac SS |
93 | int lldp_read_system_name(tlv_packet *tlv, uint16_t *length, char **data); |
94 | int lldp_read_system_description(tlv_packet *tlv, uint16_t *length, char **data); | |
95 | int lldp_read_system_capability(tlv_packet *tlv, uint16_t *data); | |
96 | int lldp_read_port_description(tlv_packet *tlv, uint16_t *length, char **data); | |
ad1ad5c8 | 97 | |
7a6f1457 | 98 | int lldp_handle_packet(tlv_packet *m, uint16_t length); |
ad1ad5c8 | 99 | #define log_lldp(fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "LLDP: " fmt, ##__VA_ARGS__) |