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#ifndef FIREWALL_H
#define FIREWALL_H
#include "esp_err.h"
#include "esp_netif.h"
#include <stdbool.h>
#include <stdint.h>
#define FW_MAX_MAC_LEN 18
esp_err_t firewall_init(esp_ip4_addr_t ap_ip);
void firewall_enable_nat(void);
void firewall_disable_nat(void);
void firewall_grant_access(uint32_t client_ip);
void firewall_revoke_access(uint32_t client_ip);
void firewall_revoke_all(void);
bool firewall_is_client_allowed(uint32_t client_ip);
bool firewall_is_mac_allowed(const char *mac);
int firewall_client_count(void);
esp_err_t firewall_get_mac_for_ip(uint32_t client_ip, char *mac_out, size_t mac_out_size);
#endif
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