dhcpv4.h

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/*
 * Copyright (c) 2016 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_NET_DHCPV4_H_
#define ZEPHYR_INCLUDE_NET_DHCPV4_H_
 
#include <zephyr/sys/slist.h>
#include <zephyr/types.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
enum net_dhcpv4_state {
 NET_DHCPV4_DISABLED,
 NET_DHCPV4_INIT,
 NET_DHCPV4_SELECTING,
 NET_DHCPV4_REQUESTING,
 NET_DHCPV4_RENEWING,
 NET_DHCPV4_REBINDING,
 NET_DHCPV4_BOUND,
} __packed;
 
enum net_dhcpv4_msg_type {
 NET_DHCPV4_MSG_TYPE_DISCOVER = 1, 
 NET_DHCPV4_MSG_TYPE_OFFER = 2, 
 NET_DHCPV4_MSG_TYPE_REQUEST = 3, 
 NET_DHCPV4_MSG_TYPE_DECLINE = 4, 
 NET_DHCPV4_MSG_TYPE_ACK = 5, 
 NET_DHCPV4_MSG_TYPE_NAK = 6, 
 NET_DHCPV4_MSG_TYPE_RELEASE = 7, 
 NET_DHCPV4_MSG_TYPE_INFORM = 8, 
};
 
struct net_dhcpv4_option_callback;
 
typedef void (*net_dhcpv4_option_callback_handler_t)(struct net_dhcpv4_option_callback *cb,
 size_t length,
 enum net_dhcpv4_msg_type msg_type,
 struct net_if *iface);
 
struct net_dhcpv4_option_callback {
 sys_snode_t node;
 
 net_dhcpv4_option_callback_handler_t handler;
 
 uint8_t option;
 
 size_t max_length;
 
 void *data;
};
 
static inline void net_dhcpv4_init_option_callback(struct net_dhcpv4_option_callback *callback,
 net_dhcpv4_option_callback_handler_t handler,
 uint8_t option,
 void *data,
 size_t max_length)
{
 __ASSERT(callback, "Callback pointer should not be NULL");
 __ASSERT(handler, "Callback handler pointer should not be NULL");
 __ASSERT(data, "Data pointer should not be NULL");
 
 callback->handler = handler;
 callback->option = option;
 callback->data = data;
 callback->max_length = max_length;
}
 
int net_dhcpv4_add_option_callback(struct net_dhcpv4_option_callback *cb);
 
int net_dhcpv4_remove_option_callback(struct net_dhcpv4_option_callback *cb);
 
static inline void
net_dhcpv4_init_option_vendor_callback(struct net_dhcpv4_option_callback *callback,
 net_dhcpv4_option_callback_handler_t handler, uint8_t option,
 void *data, size_t max_length)
{
 __ASSERT(callback, "Callback pointer should not be NULL");
 __ASSERT(handler, "Callback handler pointer should not be NULL");
 __ASSERT(data, "Data pointer should not be NULL");
 
 callback->handler = handler;
 callback->option = option;
 callback->data = data;
 callback->max_length = max_length;
}
 
int net_dhcpv4_add_option_vendor_callback(struct net_dhcpv4_option_callback *cb);
 
int net_dhcpv4_remove_option_vendor_callback(struct net_dhcpv4_option_callback *cb);
 
void net_dhcpv4_start(struct net_if *iface);
 
void net_dhcpv4_stop(struct net_if *iface);
 
void net_dhcpv4_restart(struct net_if *iface);
 
const char *net_dhcpv4_state_name(enum net_dhcpv4_state state);
 
const char *net_dhcpv4_msg_type_name(enum net_dhcpv4_msg_type msg_type);
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_NET_DHCPV4_H_ */