| 1 |
61 |
csantifort |
/*----------------------------------------------------------------
|
| 2 |
|
|
// //
|
| 3 |
|
|
// boot-loader.h //
|
| 4 |
|
|
// //
|
| 5 |
|
|
// This file is part of the Amber project //
|
| 6 |
|
|
// http://www.opencores.org/project,amber //
|
| 7 |
|
|
// //
|
| 8 |
|
|
// Description //
|
| 9 |
|
|
// Defines for the boot-loader application. //
|
| 10 |
|
|
// //
|
| 11 |
|
|
// Author(s): //
|
| 12 |
|
|
// - Conor Santifort, csantifort.amber@gmail.com //
|
| 13 |
|
|
// //
|
| 14 |
|
|
//////////////////////////////////////////////////////////////////
|
| 15 |
|
|
// //
|
| 16 |
|
|
// Copyright (C) 2010 Authors and OPENCORES.ORG //
|
| 17 |
|
|
// //
|
| 18 |
|
|
// This source file may be used and distributed without //
|
| 19 |
|
|
// restriction provided that this copyright statement is not //
|
| 20 |
|
|
// removed from the file and that any derivative work contains //
|
| 21 |
|
|
// the original copyright notice and the associated disclaimer. //
|
| 22 |
|
|
// //
|
| 23 |
|
|
// This source file is free software; you can redistribute it //
|
| 24 |
|
|
// and/or modify it under the terms of the GNU Lesser General //
|
| 25 |
|
|
// Public License as published by the Free Software Foundation; //
|
| 26 |
|
|
// either version 2.1 of the License, or (at your option) any //
|
| 27 |
|
|
// later version. //
|
| 28 |
|
|
// //
|
| 29 |
|
|
// This source is distributed in the hope that it will be //
|
| 30 |
|
|
// useful, but WITHOUT ANY WARRANTY; without even the implied //
|
| 31 |
|
|
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //
|
| 32 |
|
|
// PURPOSE. See the GNU Lesser General Public License for more //
|
| 33 |
|
|
// details. //
|
| 34 |
|
|
// //
|
| 35 |
|
|
// You should have received a copy of the GNU Lesser General //
|
| 36 |
|
|
// Public License along with this source; if not, download it //
|
| 37 |
|
|
// from http://www.opencores.org/lgpl.shtml //
|
| 38 |
|
|
// //
|
| 39 |
|
|
----------------------------------------------------------------*/
|
| 40 |
|
|
|
| 41 |
|
|
|
| 42 |
|
|
enum tcp_state {
|
| 43 |
|
|
TCP_CLOSED = 0,
|
| 44 |
|
|
TCP_PENDING = 1,
|
| 45 |
|
|
TCP_OPEN = 2
|
| 46 |
|
|
};
|
| 47 |
|
|
|
| 48 |
|
|
|
| 49 |
|
|
enum tcp_options {
|
| 50 |
|
|
TCP_NEW = 0,
|
| 51 |
|
|
TCP_NORMAL = 1,
|
| 52 |
|
|
TCP_RESET = 2
|
| 53 |
|
|
};
|
| 54 |
|
|
|
| 55 |
|
|
|
| 56 |
80 |
csantifort |
typedef struct {
|
| 57 |
|
|
|
| 58 |
|
|
packet_buffer_t** tcp_buf;
|
| 59 |
|
|
int tcp_current_buf;
|
| 60 |
|
|
|
| 61 |
|
|
/* Telnet rx and tx line buffers */
|
| 62 |
|
|
line_buf_t* telnet_rxbuf;
|
| 63 |
|
|
line_buf_t* telnet_txbuf;
|
| 64 |
|
|
|
| 65 |
|
|
int telnet_sent_opening_message;
|
| 66 |
|
|
int telnet_echo_mode;
|
| 67 |
|
|
int telnet_connection_state;
|
| 68 |
|
|
int telnet_options_sent;
|
| 69 |
|
|
|
| 70 |
|
|
int packets_sent;
|
| 71 |
|
|
int packets_received;
|
| 72 |
|
|
int packets_resent;
|
| 73 |
|
|
|
| 74 |
|
|
int tcp_connection_state;
|
| 75 |
|
|
int tcp_reset;
|
| 76 |
|
|
int tcp_disconnect;
|
| 77 |
|
|
int tcp_seq; /* should be random initial seq number for tcp */
|
| 78 |
|
|
int tcp_last_seq;
|
| 79 |
|
|
unsigned int tcp_last_ack;
|
| 80 |
|
|
|
| 81 |
|
|
int id;
|
| 82 |
|
|
|
| 83 |
|
|
packet_t* rx_packet; /* Header info from last packet received */
|
| 84 |
|
|
|
| 85 |
|
|
/* pointers to the next socket in the chain and the first socket in the chain */
|
| 86 |
|
|
void* next;
|
| 87 |
|
|
void* first;
|
| 88 |
|
|
} socket_t;
|
| 89 |
|
|
|
| 90 |
|
|
|
| 91 |
|
|
/* Global Variables */
|
| 92 |
|
|
extern socket_t* first_socket_g;
|
| 93 |
|
|
extern int tcp_checksum_errors_g;
|
| 94 |
|
|
|
| 95 |
|
|
|
| 96 |
|
|
/* Function prototypes */
|
| 97 |
|
|
socket_t* new_socket (socket_t* prev);
|
| 98 |
|
|
|
| 99 |
61 |
csantifort |
unsigned short tcp_checksum (unsigned char *, packet_t*, unsigned short);
|
| 100 |
|
|
unsigned int tcp_header (char *, socket_t*, int, int);
|
| 101 |
|
|
void tcp_reply (socket_t*, char*, int);
|
| 102 |
|
|
void tcp_open (socket_t*);
|
| 103 |
|
|
void tcp_retransmit (socket_t*);
|
| 104 |
|
|
void tcp_ack (socket_t*);
|
| 105 |
|
|
void tcp_response (char*, socket_t*);
|
| 106 |
|
|
void tcp_disconnect (socket_t*);
|
| 107 |
|
|
void tcp_tx (socket_t*, char*, int);
|
| 108 |
|
|
void parse_tcp_options (char*, packet_t*);
|
| 109 |
|
|
void parse_tcp_packet (char*, packet_t*);
|
| 110 |
80 |
csantifort |
void process_tcp (socket_t*);
|
| 111 |
61 |
csantifort |
|
| 112 |
|
|
|
