diff options
Diffstat (limited to 'kernel/features/net.c')
| -rw-r--r-- | kernel/features/net.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/kernel/features/net.c b/kernel/features/net.c index 82009dd..679f06a 100644 --- a/kernel/features/net.c +++ b/kernel/features/net.c @@ -248,6 +248,7 @@ static void ip_send_packet(u32 dst, void *data, int len, u8 prot) packet->version_ihl = ((0x4 << 4) | (0x5 << 0)); packet->length = (u16)sizeof(*packet) + (u16)len; packet->id = htons(1); // TODO: IP fragmentation + /* packet->flags_fragment = htons(1); */ packet->ttl = 64; packet->protocol = prot; packet->src = htonl(current_ip_addr); @@ -395,6 +396,13 @@ static void icmp_handle_packet(struct icmp_packet *request_packet, u32 dst) static void dns_handle_packet(struct dns_packet *packet) { print("DNS!\n"); + u16 flags = htons(packet->flags); + u8 reply_code = flags & 0xf; + if (reply_code != DNS_NOERROR) { + printf("DNS error: %d\n", reply_code); + return; + } + u8 *start = &packet->data[1] + strlen((char *)&packet->data[1]); printf("TTL of %s: %ds\n", &packet->data[1], (u32)start[14]); u8 *ip = &start[17]; @@ -433,7 +441,7 @@ static void dhcp_handle_packet(struct dhcp_packet *packet) // enum tcp_state { TCP_LISTEN, TCP_SYN_SENT, TCP_SYN_RECIEVED, TCP_ESTABLISHED, TCP_FIN_WAIT_1, TCP_FIN_WAIT_2, TCP_CLOSE_WAIT, TCP_CLOSING, TCP_LAST_ACK, TCP_TIME_WAIT, TCP_CLOSED }; #define http_res "HTTP/1.1 200\r\nContent-Length: 14\r\nConnection: close\r\n\r\n<h1>Hallo</h1>" -#define http_req "GET / HTTP/1.1\r\nHost: marvinborner.de\r\n\r\n" +#define http_req "GET / HTTP/1.1\r\nHost: google.de\r\n\r\n" static void tcp_handle_packet(struct tcp_packet *packet, u32 dst, int len) { printf("TCP Port: %d\n", ntohs(packet->dst_port)); |