2a0e5e93f3
This commit adds a function that updates the hostname displayed by the net backend. It is called by the network stack when the hostname is updated. Signed-off-by: Gerhard Jörges <joerges@metratec.com>
109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/** @file
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* @brief Hostname configuration
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*/
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/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(net_hostname, CONFIG_NET_HOSTNAME_LOG_LEVEL);
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#include <zephyr/kernel.h>
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#include <zephyr/net/hostname.h>
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#include <zephyr/net/net_core.h>
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#include <zephyr/net/net_mgmt.h>
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#include <zephyr/logging/log_backend_net.h>
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static char hostname[NET_HOSTNAME_SIZE];
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static void trigger_net_event(void)
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{
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if (IS_ENABLED(CONFIG_NET_MGMT_EVENT_INFO)) {
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struct net_event_l4_hostname info;
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memcpy(info.hostname, hostname, sizeof(hostname));
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net_mgmt_event_notify_with_info(NET_EVENT_HOSTNAME_CHANGED, NULL,
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&info, sizeof(info));
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} else {
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net_mgmt_event_notify(NET_EVENT_HOSTNAME_CHANGED, NULL);
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}
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if (IS_ENABLED(CONFIG_LOG_BACKEND_NET)) {
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log_backend_net_hostname_set(hostname, sizeof(hostname));
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}
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}
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const char *net_hostname_get(void)
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{
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return hostname;
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}
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#if defined(CONFIG_NET_HOSTNAME_DYNAMIC)
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int net_hostname_set(char *host, size_t len)
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{
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if (len > NET_HOSTNAME_MAX_LEN) {
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return -ENOMEM;
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}
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memcpy(hostname, host, len);
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hostname[len] = 0;
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NET_DBG("New hostname %s", hostname);
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trigger_net_event();
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return 0;
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}
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#endif
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#if defined(CONFIG_NET_HOSTNAME_UNIQUE)
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int net_hostname_set_postfix(const uint8_t *hostname_postfix,
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int postfix_len)
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{
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#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE)
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static bool postfix_set;
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#endif
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int pos = 0;
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int i;
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#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE)
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if (postfix_set) {
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return -EALREADY;
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}
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#endif
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NET_ASSERT(postfix_len > 0);
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/* Note that we convert the postfix to hex (2 chars / byte) */
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if ((postfix_len * 2) >
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(NET_HOSTNAME_MAX_LEN - (sizeof(CONFIG_NET_HOSTNAME) - 1))) {
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return -EMSGSIZE;
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}
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for (i = 0; i < postfix_len; i++, pos += 2) {
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snprintk(&hostname[sizeof(CONFIG_NET_HOSTNAME) - 1 + pos], 2 + 1, "%02x",
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hostname_postfix[i]);
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}
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NET_DBG("New hostname %s", hostname);
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#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE)
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postfix_set = true;
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#endif
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trigger_net_event();
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return 0;
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}
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#endif /* CONFIG_NET_HOSTNAME_UNIQUE */
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void net_hostname_init(void)
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{
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memcpy(hostname, CONFIG_NET_HOSTNAME, sizeof(CONFIG_NET_HOSTNAME) - 1);
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NET_DBG("Hostname set to %s", CONFIG_NET_HOSTNAME);
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trigger_net_event();
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}
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