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[/] [amber/] [trunk/] [sw/] [boot-loader-ethmac/] [tcp.h] - Diff between revs 80 and 81

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Rev 80 Rev 81
Line 39... Line 39... 
----------------------------------------------------------------*/
 
----------------------------------------------------------------*/
 
 
 
 
 
 
 
 
 
enum tcp_state {
 
enum tcp_state {
 
        TCP_CLOSED    = 0,
 
        TCP_CLOSED    = 0,
 
        TCP_PENDING   = 1,
 
    TCP_LISTENING = 1,
 
        TCP_OPEN      = 2
 
        TCP_PENDING   = 2,
 
 
 
        TCP_OPEN      = 3
 
};
 
};
 
 
 
 
 
 
 
 
 
enum tcp_options {
 
enum tcp_options {
 
        TCP_NEW         = 0,
 
        TCP_NEW         = 0,
 
        TCP_NORMAL      = 1,
 
        TCP_NORMAL      = 1,
 
        TCP_RESET       = 2
 
        TCP_RESET       = 2
 
};
 
};
 
 
 
 
 
 
 
 
 
 
 
enum app_type {
 
 
 
        APP_TELNET      = 0,
 
 
 
        APP_HTTPD       = 1,
 
 
 
        APP_FTPD        = 2
 
 
 
};
 
 
 
 
 
 
 
 
 
 
 
typedef struct {
 
 
 
    /* socket associated with this application */
 
 
 
    void*               socket;
 
 
 
    void*               telnet;
 
 
 
    int                 type;
 
 
 
} app_t;
 
 
 
 
 
 
 
 
 
 
 
 
 
typedef struct {
 
typedef struct {
 
 
 
 
 
    packet_buffer_t** tcp_buf;
 
    packet_buffer_t** tcp_buf;
 
    int          tcp_current_buf;
 
    int          tcp_current_buf;
 
 
 
 
 
    /* Telnet rx and tx line buffers */
 
 
 
    line_buf_t*  telnet_rxbuf;
 
 
 
    line_buf_t*  telnet_txbuf;
 
 
 
 
 
 
 
    int          telnet_sent_opening_message;
 
 
 
    int          telnet_echo_mode;
 
 
 
    int          telnet_connection_state;
 
 
 
    int          telnet_options_sent;
 
 
 
 
 
 
 
    int          packets_sent;
 
    int          packets_sent;
 
    int          packets_received;
 
    int          packets_received;
 
    int          packets_resent;
 
    int          packets_resent;
 
 
 
 
 
    int          tcp_connection_state;
 
    int          tcp_connection_state;
 
    int          tcp_reset;
 
    int          tcp_reset;
 
    int          tcp_disconnect;
 
    int          tcp_disconnect;
 
    int          tcp_seq;            /* should be random initial seq number for tcp */
 
 
 
    int          tcp_last_seq;
 
 
 
    unsigned int tcp_last_ack;
 
 
 
 
 
 
 
 
 
    /* byte sequence numbers */
 
 
 
    unsigned int        tcp_tx_seq;             /* initial value should be random initial seq number for tcp */
 
 
 
 
 
 
 
    unsigned int        tcp_rx_init_seq;        /* Initial byte sequence number received from client */
 
 
 
    unsigned int        tcp_rx_seq;             /* is equivalent to tcp_tx_ack */
 
 
 
    unsigned int        tcp_rx_ack;
 
 
 
 
 
 
 
    unsigned int        tcp_bytes_received;
 
 
 
    unsigned int        tcp_bytes_acked;
 
 
 
 
 
 
 
    ip_t                dest_ip;                /* IP address of the far end */
 
 
 
    mac_t               dest_mac;               /* MAC address of the far end */
 
 
 
    unsigned int        listen_port;            /* Listen on this port for connection requests */
 
    int          id;
 
    int          id;
 
 
 
 
 
    packet_t*    rx_packet;  /* Header info from last packet received */
 
    packet_t*    rx_packet;  /* Header info from last packet received */
 
 
 
 
 
    /* pointers to the next socket in the chain and the first socket in the chain */
 
    /* pointers to the next socket in the chain and the first socket in the chain */
 
    void*        next;
 
    void*        next;
 
    void*        first;
 
    void*        first;
 
 
 
 
 
 
 
    /* pointer to generic application object */
 
 
 
    app_t*              app;
 
} socket_t;
 
} socket_t;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/* Global Variables */
 
/* Global Variables */
 
extern socket_t*    first_socket_g;
 
extern socket_t*    first_socket_g;
 
extern int          tcp_checksum_errors_g;
 
extern int          tcp_checksum_errors_g;
 
 
 
 
 
 
 
 
 
/* Function prototypes */
 
/* Function prototypes */
 
socket_t*       new_socket              (socket_t* prev);
 
socket_t*       new_socket              (socket_t* prev);
 
 
 
int             listen_socket           (unsigned int, app_t*);
 
 
 
void            process_sockets         ();
 
 
 
 
 
unsigned short  tcp_checksum            (unsigned char *, packet_t*, unsigned short);
 
unsigned short  tcp_checksum            (unsigned char *, packet_t*, unsigned short);
 
unsigned int    tcp_header              (char *, socket_t*, int, int);
 
unsigned int    tcp_header              (char *, socket_t*, int, int);
 
void            tcp_reply               (socket_t*, char*, int);
 
void            tcp_reply               (socket_t*, char*, int);
 
void            tcp_open                (socket_t*);
 
void            tcp_open                (socket_t*);
Line 108... Line 133... 
void            parse_tcp_options       (char*, packet_t*);
 
void            parse_tcp_options       (char*, packet_t*);
 
void            parse_tcp_packet        (char*, packet_t*);
 
void            parse_tcp_packet        (char*, packet_t*);
 
void            process_tcp             (socket_t*);
 
void            process_tcp             (socket_t*);
 
 
 
 
 
 
 
 
 
 
 
 
 
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