ip stuff

Author: braindigitalis

include/icmp.h

@@ -105,3 +105,13 @@ typedef struct icmp_timestamp_packet {
 void icmp_handle_packet([[maybe_unused]] ip_packet_t* encap_packet, icmp_packet_t* packet, size_t len);
 
 void icmp_send_echo(uint32_t destination, uint16_t id, uint16_t seq);
+
+void icmp_send_time_exceeded(ip_packet_t* original_ip, uint8_t code);
+
+void icmp_send_destination_unreachable(ip_packet_t* original_ip, uint8_t code);
+
+void icmp_send_parameter_problem(ip_packet_t* original_ip, uint8_t pointer_offset);
+
+void icmp_send_redirect(ip_packet_t* original_ip, uint8_t code, uint32_t new_gateway_ip);
+
+void icmp_send_fragmentation_needed(ip_packet_t* original_ip, uint16_t mtu);

src/arp.c

@@ -35,7 +35,7 @@ void arp_handle_packet(arp_packet_t* arp_packet, [[maybe_unused]] int len) {
 		if (gethostaddr(addr)) {
 			my_ip = *(uint32_t*)addr;
 		}
-		if (memcmp(arp_packet->dst_protocol_addr, &my_ip, 4)) {
+		if (memcmp(arp_packet->dst_protocol_addr, &my_ip, 4) == 0) {
 
 			netdev_t* dev = get_active_network_device();
 			if (!dev) {
@@ -61,8 +61,7 @@ void arp_handle_packet(arp_packet_t* arp_packet, [[maybe_unused]] int len) {
 
 			ethernet_send_packet(dst_hardware_addr, (uint8_t*)arp_packet, sizeof(arp_packet_t), ETHERNET_TYPE_ARP);
 		}
-	}
-	else if(ntohs(arp_packet->opcode) == ARP_REPLY) {
+	} else if(ntohs(arp_packet->opcode) == ARP_REPLY) {
 	}
 
 	uint8_t dummy[6];