You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
143 lines
3.1 KiB
143 lines
3.1 KiB
/** @file |
|
* @brief Hostname configuration |
|
*/ |
|
|
|
/* |
|
* Copyright (c) 2017 Intel Corporation |
|
* |
|
* SPDX-License-Identifier: Apache-2.0 |
|
*/ |
|
|
|
#include <zephyr/logging/log.h> |
|
LOG_MODULE_REGISTER(net_hostname, CONFIG_NET_HOSTNAME_LOG_LEVEL); |
|
|
|
#include <zephyr/kernel.h> |
|
|
|
#include <zephyr/net/hostname.h> |
|
#include <zephyr/net/net_core.h> |
|
#include <zephyr/net/net_mgmt.h> |
|
#include <zephyr/logging/log_backend_net.h> |
|
|
|
static char hostname[NET_HOSTNAME_SIZE]; |
|
|
|
static void trigger_net_event(void) |
|
{ |
|
if (IS_ENABLED(CONFIG_NET_MGMT_EVENT_INFO)) { |
|
struct net_event_l4_hostname info; |
|
|
|
memcpy(info.hostname, hostname, sizeof(hostname)); |
|
net_mgmt_event_notify_with_info(NET_EVENT_HOSTNAME_CHANGED, NULL, |
|
&info, sizeof(info)); |
|
} else { |
|
net_mgmt_event_notify(NET_EVENT_HOSTNAME_CHANGED, NULL); |
|
} |
|
|
|
if (IS_ENABLED(CONFIG_LOG_BACKEND_NET)) { |
|
log_backend_net_hostname_set(hostname, sizeof(hostname)); |
|
} |
|
} |
|
|
|
const char *net_hostname_get(void) |
|
{ |
|
return hostname; |
|
} |
|
|
|
#if defined(CONFIG_NET_HOSTNAME_DYNAMIC) |
|
int net_hostname_set(char *host, size_t len) |
|
{ |
|
if (len > NET_HOSTNAME_MAX_LEN) { |
|
return -ENOMEM; |
|
} |
|
|
|
memcpy(hostname, host, len); |
|
hostname[len] = 0; |
|
|
|
NET_DBG("New hostname %s", hostname); |
|
trigger_net_event(); |
|
|
|
return 0; |
|
} |
|
#endif |
|
|
|
#if defined(CONFIG_NET_HOSTNAME_UNIQUE) |
|
int net_hostname_set_postfix(const uint8_t *hostname_postfix, |
|
int postfix_len) |
|
{ |
|
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE) |
|
static bool postfix_set; |
|
#endif |
|
int pos = 0; |
|
int i; |
|
|
|
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE) |
|
if (postfix_set) { |
|
return -EALREADY; |
|
} |
|
#endif |
|
|
|
NET_ASSERT(postfix_len > 0); |
|
|
|
/* Note that we convert the postfix to hex (2 chars / byte) */ |
|
if ((postfix_len * 2) > |
|
(NET_HOSTNAME_MAX_LEN - (sizeof(CONFIG_NET_HOSTNAME) - 1))) { |
|
return -EMSGSIZE; |
|
} |
|
|
|
for (i = 0; i < postfix_len; i++, pos += 2) { |
|
snprintk(&hostname[sizeof(CONFIG_NET_HOSTNAME) - 1 + pos], 2 + 1, "%02x", |
|
hostname_postfix[i]); |
|
} |
|
|
|
NET_DBG("New hostname %s", hostname); |
|
|
|
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE) |
|
postfix_set = true; |
|
#endif |
|
trigger_net_event(); |
|
|
|
return 0; |
|
} |
|
|
|
int net_hostname_set_postfix_str(const uint8_t *hostname_postfix, |
|
int postfix_len) |
|
{ |
|
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE) |
|
static bool postfix_set; |
|
#endif |
|
int net_hostname_len = sizeof(CONFIG_NET_HOSTNAME) - 1; |
|
int hostname_len_remain = (NET_HOSTNAME_MAX_LEN - net_hostname_len) + 1; |
|
|
|
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE) |
|
if (postfix_set) { |
|
return -EALREADY; |
|
} |
|
#endif |
|
|
|
NET_ASSERT(postfix_len > 0); |
|
|
|
if (hostname_len_remain < postfix_len) { |
|
NET_DBG("Hostname postfix length %d is exceeding limit of %d", postfix_len, |
|
hostname_len_remain); |
|
return -EMSGSIZE; |
|
} |
|
|
|
snprintk(&hostname[net_hostname_len], hostname_len_remain, "%s", hostname_postfix); |
|
|
|
NET_DBG("New Unique hostname: %s", hostname); |
|
|
|
#if !defined(CONFIG_NET_HOSTNAME_UNIQUE_UPDATE) |
|
postfix_set = true; |
|
#endif |
|
trigger_net_event(); |
|
|
|
return 0; |
|
} |
|
#endif /* CONFIG_NET_HOSTNAME_UNIQUE */ |
|
|
|
void net_hostname_init(void) |
|
{ |
|
memcpy(hostname, CONFIG_NET_HOSTNAME, sizeof(CONFIG_NET_HOSTNAME) - 1); |
|
|
|
NET_DBG("Hostname set to %s", CONFIG_NET_HOSTNAME); |
|
trigger_net_event(); |
|
}
|
|
|