tristan/ZealOS
1
0
Fork 0
mirror of https://github.com/Zeal-Operating-System/ZealOS.git synced 2024-12-25 15:10:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

There is no receive window size.

Browse source 
Client(send) overrides host(receive) window size.
It's one of the reasons why telnet chars and gopher files/links tend to drop. Packetloss/timeout.
This commit is contained in:
Z8Griz 2024-08-26 07:16:48 -06:00
parent 1f750d9237
commit 1a5368962b
2 changed files with 10 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
src/Home/Net/Protocols/TCP/TCP.HH
View file

@ -6,7 +6,10 @@
#define TCP_RTO_MIN 0.2
#define TCP_RTO_MAX 10
#define TCP_WINDOW_SIZE 8192
#define TCP_WINDOW_SIZE 8192 // Should not be static. For now it's okay
U16 RECEIVE_WINDOW; // gets host window size. It is not static.
U16 SEND_WINDOW; // gets receive window size from host, then adjust accordingly.
#define TCP_MSS 536 // Max Segment Size default
@ -24,7 +27,7 @@
#define TCP_STATE_LAST_ACK 9
#define TCP_STATE_TIME_WAIT 10
// TCP header flags. Test with Bt(), e.g. Bt(&flags, TCPf_RST)
// TCP header flags. Order of Operation matters. Test with Bt(), e.g. Bt(&flags, TCPf_RST)
#define TCPf_FIN 0
#define TCPf_SYN 1
#define TCPf_RST 2

10
src/Home/Net/Protocols/TCP/TCP.ZC
View file

@ -101,7 +101,7 @@ I64 TCPPacketAllocate(U8 **frame_out,
header->ack_num = EndianU32(ack_num);
header->data_offset = (sizeof(CTCPHeader) / 4) << 4; // ???
header->flags = flags;
header->window_size = EndianU16(TCP_WINDOW_SIZE / 2);// TODO: What is window size supposed to be ?
header->window_size = EndianU16(TCP_WINDOW_SIZE);// Window Size allocation data. Adjusted based on receive window.
header->checksum = 0;
header->urgent_pointer = 0;
@ -647,8 +647,8 @@ CTCPSocket TCPSocket(U16 domain=AF_UNSPEC)
QueueInit(accept_queue); // init pending connection queue
tcp_socket->accept_queue = accept_queue;
tcp_socket->receive_buffer_size = TCP_WINDOW_SIZE;
tcp_socket->receive_buffer = CAlloc(TCP_WINDOW_SIZE);
tcp_socket->receive_buffer_size = RECEIVE_WINDOW;
tcp_socket->receive_buffer = CAlloc(RECEIVE_WINDOW);
tcp_socket->max_segment_size = TCP_MSS;
@ -1057,7 +1057,7 @@ I64 TCPSocketConnect(CTCPSocket *tcp_socket, CSocketAddressStorage *address)
}
tcp_socket->connection_time = tS;
tcp_socket->receive_window = TCP_WINDOW_SIZE;
tcp_socket->receive_window = RECEIVE_WINDOW;
tcp_socket->state = TCP_STATE_SYN_SENT;
TCPSendFlags(tcp_socket, TCPF_SYN);
@ -1165,7 +1165,7 @@ CTCPSocket *TCPSocketAccept(CTCPSocket *tcp_socket)
new_socket->next_recv_seq_num = ++pending->segment_seq_num;
new_socket->connection_time = tS;
new_socket->receive_window = TCP_WINDOW_SIZE;
new_socket->receive_window = RECEIVE_WINDOW;
new_socket->timeout = tcp_socket->timeout;
temp_addr = &tcp_socket->source_address;