mirror of
https://github.com/BoredDevNL/BoredOS.git
synced 2026-05-15 10:48:38 +00:00
62bc5d4017
New Features: -TCP/IP Updated network stack -Ping (usage ping >ip<) does 4 8 byte echo pings to the inputted IP. -DNS Grabs the IP address from a domain name (Broken) -HTTPGET Gets http from a site (broken aswell lol) Bug fix: Moved the cmd apps out of the ISR so the system wouldn't hang on a ping or while trying to get DNS info.
99 lines
No EOL
2.3 KiB
C
99 lines
No EOL
2.3 KiB
C
#ifndef NET_DEFS_H
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#define NET_DEFS_H
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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// Ensure we have the IP type from your existing stack
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#include "network.h"
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// Protocol Numbers
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#define IP_PROTO_ICMP 1
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#define IP_PROTO_TCP 6
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#define IP_PROTO_UDP 17
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// Byte Order Utils
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static inline uint16_t htons(uint16_t v) {
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return (v << 8) | (v >> 8);
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}
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static inline uint16_t ntohs(uint16_t v) {
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return (v << 8) | (v >> 8);
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}
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static inline uint32_t htonl(uint32_t v) {
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return ((v & 0xFF) << 24) | ((v & 0xFF00) << 8) | ((v & 0xFF0000) >> 8) | ((v >> 24) & 0xFF);
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}
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static inline uint32_t ntohl(uint32_t v) {
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return htonl(v);
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}
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// Checksum Calculation
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static inline uint16_t net_checksum(void *data, int len) {
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uint32_t sum = 0;
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uint16_t *p = (uint16_t *)data;
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while (len > 1) {
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sum += *p++;
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len -= 2;
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}
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if (len) {
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sum += *(uint8_t *)p;
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}
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while (sum >> 16) {
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sum = (sum & 0xFFFF) + (sum >> 16);
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}
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return (uint16_t)~sum;
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}
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// --- Headers ---
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typedef struct {
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uint8_t type;
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uint8_t code;
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uint16_t checksum;
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uint16_t id;
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uint16_t sequence;
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} __attribute__((packed)) icmp_header_t;
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typedef struct {
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uint16_t src_port;
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uint16_t dst_port;
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uint32_t seq_num;
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uint32_t ack_num;
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uint8_t data_offset; // High 4 bits: offset, Low 4 bits: reserved/NS
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uint8_t flags;
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uint16_t window_size;
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uint16_t checksum;
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uint16_t urgent_ptr;
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} __attribute__((packed)) tcp_header_t;
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#define TCP_FIN 0x01
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#define TCP_SYN 0x02
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#define TCP_RST 0x04
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#define TCP_PSH 0x08
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#define TCP_ACK 0x10
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#define TCP_URG 0x20
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typedef struct {
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uint16_t id;
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uint16_t flags;
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uint16_t q_count;
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uint16_t ans_count;
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uint16_t auth_count;
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uint16_t add_count;
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} __attribute__((packed)) dns_header_t;
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// External dependencies from your existing IP layer
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// You must ensure these are implemented in network.c
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extern int ip_send_packet(ipv4_address_t dst, uint8_t protocol, const void *data, uint16_t len);
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extern ipv4_address_t get_local_ip(void);
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// New functions exposed by modules
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void icmp_handle_packet(ipv4_address_t src, void *data, uint16_t len);
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void tcp_handle_packet(ipv4_address_t src, void *data, uint16_t len);
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// CLI Commands
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void cli_cmd_ping(char *args);
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void cli_cmd_dns(char *args);
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void cli_cmd_httpget(char *args);
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#endif |