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/* -*- mode: c; c-file-style: "openbsd" -*- */
/*
* Copyright (c) 2008 Vincent Bernat <bernat@luffy.cx>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include "lldpd-structs.h"
#include "log.h"
void
lldpd_chassis_mgmt_cleanup(struct lldpd_chassis *chassis)
{
struct lldpd_mgmt *mgmt, *mgmt_next;
log_debug("alloc", "cleanup management addresses for chassis %s",
chassis->c_name ? chassis->c_name : "(unknown)");
for (mgmt = TAILQ_FIRST(&chassis->c_mgmt); mgmt != NULL; mgmt = mgmt_next) {
mgmt_next = TAILQ_NEXT(mgmt, m_entries);
free(mgmt);
}
TAILQ_INIT(&chassis->c_mgmt);
}
void
lldpd_chassis_cleanup(struct lldpd_chassis *chassis, int all)
{
lldpd_chassis_mgmt_cleanup(chassis);
log_debug("alloc", "cleanup chassis %s",
chassis->c_name ? chassis->c_name : "(unknown)");
#ifdef ENABLE_LLDPMED
free(chassis->c_med_hw);
free(chassis->c_med_sw);
free(chassis->c_med_fw);
free(chassis->c_med_sn);
free(chassis->c_med_manuf);
free(chassis->c_med_model);
free(chassis->c_med_asset);
#endif
free(chassis->c_id);
free(chassis->c_name);
free(chassis->c_descr);
if (all) free(chassis);
}
#ifdef ENABLE_DOT1
void
lldpd_vlan_cleanup(struct lldpd_port *port)
{
struct lldpd_vlan *vlan, *vlan_next;
for (vlan = TAILQ_FIRST(&port->p_vlans); vlan != NULL; vlan = vlan_next) {
free(vlan->v_name);
vlan_next = TAILQ_NEXT(vlan, v_entries);
free(vlan);
}
TAILQ_INIT(&port->p_vlans);
port->p_pvid = 0;
}
void
lldpd_ppvid_cleanup(struct lldpd_port *port)
{
struct lldpd_ppvid *ppvid, *ppvid_next;
for (ppvid = TAILQ_FIRST(&port->p_ppvids); ppvid != NULL; ppvid = ppvid_next) {
ppvid_next = TAILQ_NEXT(ppvid, p_entries);
free(ppvid);
}
TAILQ_INIT(&port->p_ppvids);
}
void
lldpd_pi_cleanup(struct lldpd_port *port)
{
struct lldpd_pi *pi, *pi_next;
for (pi = TAILQ_FIRST(&port->p_pids); pi != NULL; pi = pi_next) {
free(pi->p_pi);
pi_next = TAILQ_NEXT(pi, p_entries);
free(pi);
}
TAILQ_INIT(&port->p_pids);
}
#endif
#ifdef ENABLE_CUSTOM
void
lldpd_custom_tlv_add(struct lldpd_port *port, struct lldpd_custom *curr)
{
struct lldpd_custom *custom;
if ((custom = malloc(sizeof(struct lldpd_custom)))) {
memcpy(custom, curr, sizeof(struct lldpd_custom));
if ((custom->oui_info = malloc(custom->oui_info_len))) {
memcpy(custom->oui_info, curr->oui_info, custom->oui_info_len);
TAILQ_INSERT_TAIL(&port->p_custom_list, custom, next);
} else {
free(custom);
log_warn("rpc",
"could not allocate memory for custom TLV info");
}
}
}
void
lldpd_custom_tlv_cleanup(struct lldpd_port *port, struct lldpd_custom *curr)
{
struct lldpd_custom *custom, *custom_next;
for (custom = TAILQ_FIRST(&port->p_custom_list); custom != NULL;
custom = custom_next) {
custom_next = TAILQ_NEXT(custom, next);
if (!memcmp(curr->oui, custom->oui, sizeof(curr->oui)) &&
curr->subtype == custom->subtype) {
TAILQ_REMOVE(&port->p_custom_list, custom, next);
free(custom->oui_info);
free(custom);
}
}
}
void
lldpd_custom_list_cleanup(struct lldpd_port *port)
{
struct lldpd_custom *custom, *custom_next;
for (custom = TAILQ_FIRST(&port->p_custom_list); custom != NULL;
custom = custom_next) {
custom_next = TAILQ_NEXT(custom, next);
free(custom->oui_info);
free(custom);
}
TAILQ_INIT(&port->p_custom_list);
}
#endif
/* Cleanup a remote port. The before last argument, `expire` is a function that
* should be called when a remote port is removed. If the last argument is 1,
* all remote ports are removed.
*/
void
lldpd_remote_cleanup(struct lldpd_hardware *hardware,
void (*expire)(struct lldpd_hardware *, struct lldpd_port *), int all)
{
struct lldpd_port *port, *port_next;
int del;
time_t now = time(NULL);
log_debug("alloc", "cleanup remote port on %s", hardware->h_ifname);
for (port = TAILQ_FIRST(&hardware->h_rports); port != NULL; port = port_next) {
port_next = TAILQ_NEXT(port, p_entries);
del = all;
if (!all && expire && (now >= port->p_lastupdate + port->p_ttl)) {
if (port->p_ttl > 0) hardware->h_ageout_cnt++;
del = 1;
}
if (del) {
if (expire) expire(hardware, port);
/* This TAILQ_REMOVE is dangerous. It should not be
* called while in liblldpctl because we don't have a
* real list. It is only needed to be called when we
* don't delete the entire list. */
if (!all) TAILQ_REMOVE(&hardware->h_rports, port, p_entries);
hardware->h_delete_cnt++;
/* Register last removal to be able to report
* lldpStatsRemTablesLastChangeTime */
hardware->h_lport.p_lastremove = time(NULL);
lldpd_port_cleanup(port, 1);
free(port);
}
}
if (all) TAILQ_INIT(&hardware->h_rports);
}
/* If `all' is true, clear all information, including information that
are not refreshed periodically. Port should be freed manually. */
void
lldpd_port_cleanup(struct lldpd_port *port, int all)
{
#ifdef ENABLE_LLDPMED
int i;
if (all)
for (i = 0; i < LLDP_MED_LOCFORMAT_LAST; i++)
free(port->p_med_location[i].data);
#endif
#ifdef ENABLE_DOT1
lldpd_vlan_cleanup(port);
lldpd_ppvid_cleanup(port);
lldpd_pi_cleanup(port);
#endif
/* will set these to NULL so we don't free wrong memory */
if (all) {
free(port->p_id);
port->p_id = NULL;
free(port->p_descr);
port->p_descr = NULL;
free(port->p_lastframe);
if (port->p_chassis) { /* chassis may not have been attributed, yet */
port->p_chassis->c_refcount--;
port->p_chassis = NULL;
}
#ifdef ENABLE_CUSTOM
lldpd_custom_list_cleanup(port);
#endif
}
}
void
lldpd_config_cleanup(struct lldpd_config *config)
{
log_debug("alloc", "general configuration cleanup");
free(config->c_mgmt_pattern);
free(config->c_cid_pattern);
free(config->c_cid_string);
free(config->c_iface_pattern);
free(config->c_perm_ifaces);
free(config->c_hostname);
free(config->c_platform);
free(config->c_description);
}
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