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1 | /* -*- mode: c; c-file-style: "openbsd" -*- */ |
2 | /* | |
d9f3b69e | 3 | * Copyright (c) 2015 Nicira, Inc. |
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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 | #include <config.h> | |
20 | #include "lldpd-structs.h" | |
21 | #include <stdlib.h> | |
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22 | #include <unistd.h> |
23 | #include "lldpd.h" | |
d9f3b69e | 24 | #include "timeval.h" |
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25 | |
26 | VLOG_DEFINE_THIS_MODULE(lldpd_structs); | |
27 | ||
28 | void | |
29 | lldpd_chassis_mgmt_cleanup(struct lldpd_chassis *chassis) | |
30 | { | |
5f03c983 | 31 | struct lldpd_mgmt *mgmt; |
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32 | |
33 | VLOG_DBG("cleanup management addresses for chassis %s", | |
34 | chassis->c_name ? chassis->c_name : "(unknown)"); | |
35 | ||
5f03c983 | 36 | LIST_FOR_EACH_POP (mgmt, m_entries, &chassis->c_mgmt) { |
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37 | free(mgmt); |
38 | } | |
39 | ||
32590179 | 40 | list_init(&chassis->c_mgmt); |
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41 | } |
42 | ||
43 | void | |
02d593b1 | 44 | lldpd_chassis_cleanup(struct lldpd_chassis *chassis, bool all) |
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45 | { |
46 | lldpd_chassis_mgmt_cleanup(chassis); | |
47 | VLOG_DBG("cleanup chassis %s", | |
e8fa10d7 | 48 | chassis->c_name ? chassis->c_name : "(unknown)"); |
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49 | free(chassis->c_id); |
50 | free(chassis->c_name); | |
51 | free(chassis->c_descr); | |
52 | if (all) { | |
53 | free(chassis); | |
54 | } | |
55 | } | |
56 | ||
57 | /* Cleanup a remote port. The before last argument, `expire` is a function that | |
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58 | * should be called when a remote port is removed. If the last argument is |
59 | * true, all remote ports are removed. | |
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60 | */ |
61 | void | |
62 | lldpd_remote_cleanup(struct lldpd_hardware *hw, | |
63 | void(*expire)(struct lldpd_hardware *, | |
64 | struct lldpd_port *), | |
02d593b1 | 65 | bool all) |
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66 | { |
67 | struct lldpd_port *port, *port_next; | |
d9f3b69e | 68 | time_t now = time_now(); |
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69 | |
70 | VLOG_DBG("cleanup remote port on %s", hw->h_ifname); | |
135706b3 | 71 | LIST_FOR_EACH_SAFE (port, port_next, p_entries, &hw->h_rports) { |
02d593b1 | 72 | bool del = all; |
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73 | if (!all && expire && |
74 | (now >= port->p_lastupdate + port->p_chassis->c_ttl)) { | |
75 | hw->h_ageout_cnt++; | |
76 | hw->h_delete_cnt++; | |
02d593b1 | 77 | del = true; |
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78 | } |
79 | if (del) { | |
80 | if (expire) { | |
81 | expire(hw, port); | |
82 | } | |
83 | ||
84 | if (!all) { | |
85 | list_remove(&port->p_entries); | |
86 | } | |
02d593b1 | 87 | lldpd_port_cleanup(port, true); |
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88 | free(port); |
89 | } | |
90 | } | |
91 | if (all) { | |
135706b3 | 92 | list_init(&hw->h_rports); |
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93 | } |
94 | } | |
95 | ||
96 | /* If `all' is true, clear all information, including information that | |
97 | are not refreshed periodically. Port should be freed manually. */ | |
98 | void | |
02d593b1 | 99 | lldpd_port_cleanup(struct lldpd_port *port, bool all) |
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100 | { |
101 | /* We set these to NULL so we don't free wrong memory */ | |
102 | ||
103 | free(port->p_id); | |
104 | port->p_id = NULL; | |
105 | free(port->p_descr); | |
106 | port->p_descr = NULL; | |
107 | if (all) { | |
108 | free(port->p_lastframe); | |
109 | /* Chassis may not have been attributed, yet.*/ | |
110 | if (port->p_chassis) { | |
111 | port->p_chassis->c_refcount--; | |
112 | port->p_chassis = NULL; | |
113 | } | |
114 | } | |
115 | } | |
116 | ||
117 | void | |
118 | lldpd_config_cleanup(struct lldpd_config *config) | |
119 | { | |
120 | VLOG_DBG("general configuration cleanup"); | |
121 | free(config->c_mgmt_pattern); | |
122 | free(config->c_cid_pattern); | |
123 | free(config->c_iface_pattern); | |
124 | free(config->c_platform); | |
125 | free(config->c_description); | |
126 | } |