100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
#include "esp32Firewall.hpp"
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namespace firewall
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{
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Firewall::Firewall()
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{
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this->amount_of_rules = retrieve_settings_value("amount_of_rules");
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for (uint8_t i = 1; i <= this->amount_of_rules; i++)
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{
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firewall_rule_t *rule_ptr = retrieve_firewall_rule(i);
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add_rule_to_firewall(rule_ptr);
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}
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}
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Firewall::~Firewall()
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{
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}
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void Firewall::add_rule_to_firewall(firewall_rule_t *rule_ptr)
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{
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store_settings_value("amount_of_rules", this->amount_of_rules);
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store_firewall_rule(rule_ptr);
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firewall_rule_t *temp;
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if (this->head == NULL)
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{
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this->head = rule_ptr;
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rule_ptr->next = NULL;
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return;
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}
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temp = this->head;
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while (temp->next != NULL)
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{
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temp = temp->next;
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}
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temp->next = rule_ptr;
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rule_ptr->next = NULL;
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return;
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}
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firewall_rule_t *Firewall::get_rule_from_firewall(uint8_t key)
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{
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firewall_rule_t *rule_ptr = this->head;
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if (this->head == NULL)
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{
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return NULL;
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}
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while (rule_ptr->key != key)
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{
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if (rule_ptr->next == NULL)
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{
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return NULL;
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}
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else
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{
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rule_ptr = rule_ptr->next;
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}
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}
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return rule_ptr;
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}
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ok_t Firewall::delete_rule_from_firewall(uint8_t key)
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{
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if (this->head == NULL)
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return NO_ACTION;
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firewall_rule_t *current_rule_ptr = this->head;
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firewall_rule_t *previous_rule_ptr = NULL;
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firewall_rule_t *temp = NULL;
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while (current_rule_ptr->key != key)
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{
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if (current_rule_ptr->next == NULL)
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return NO_ACTION;
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else
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{
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previous_rule_ptr = current_rule_ptr;
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current_rule_ptr = current_rule_ptr->next;
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}
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}
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if (current_rule_ptr == this->head)
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{
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this->head = head->next;
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temp = this->head;
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}
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else
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{
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previous_rule_ptr->next = current_rule_ptr->next;
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temp = previous_rule_ptr->next;
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}
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while (temp != NULL)
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{
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temp->key--;
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temp = temp->next;
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}
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free(current_rule_ptr);
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this->amount_of_rules--;
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store_settings_value("amount_of_rules", this->amount_of_rules);
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if (this->amount_of_rules != 0)
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store_all_firewall_rules(head);
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return SUCCESS;
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}
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}
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