usr/src/sys/netccitt/pk_var.h

/* Copyright (c) University of British Columbia, 1984 */


/*
 *
 *  X.25 Logical Channel Descriptor
 *
 */

struct pklcd {
        short   lcd_lcn;                /* Logical channel number */
        short   lcd_state;              /* Logical Channel state */
        bool    lcd_intrconf_pending;   /* Interrupt confirmation pending */
        octet   lcd_intrdata;           /* Octet of incoming intr data */
        short   lcd_timer;              /* Various timer values */
        char    lcd_retry;              /* Timer retry count */
        char    lcd_rsn;                /* Seq no of last received packet */
        char    lcd_ssn;                /* Seq no of next packet to send */
        char    lcd_output_window;      /* Output flow control window */
        char    lcd_input_window;       /* Input flow control window */
        char    lcd_last_transmitted_pr;/* Last Pr value transmitted */
        bool    lcd_rnr_condition;      /* Remote in busy condition */
        bool    lcd_window_condition;   /* Output window size exceeded */
        bool    lcd_reset_condition;    /* True, if waiting reset confirm */
        char    lcd_packetsize;         /* Maximum packet size */
        char    lcd_windowsize;         /* Window size - both directions */
        octet   lcd_closed_user_group;  /* Closed user group specification */
        char    lcd_flags;              /* copy of sockaddr_x25 op_flags */
        struct  x25_packet *lcd_template;/* Address of current packet */
        struct  socket *lcd_so;         /* Socket addr for connection */
        struct  sockaddr_x25 *lcd_craddr;/* Calling address */
        struct  sockaddr_x25 *lcd_ceaddr;/* Called address */
        time_t  lcd_stime;              /* time circuit established */
        long    lcd_txcnt;              /* Data packet transmit count */
        long    lcd_rxcnt;              /* Data packet receive count */
        short   lcd_intrcnt;            /* Interrupt packet transmit count */
        struct  pklcd *lcd_listen;      /* Next lcd on listen queue */
        struct  pkcb *lcd_pkp;          /* network this lcd is attached to */
};

/*
 * Per network information, allocated dynamically
 * when a new network is configured.
 */

struct  pkcb {
        struct  pkcb *pk_next;
        short   pk_state;               /* packet level status */
        short   pk_maxlcn;              /* local copy of xc_maxlcn */
        int     (*pk_output) ();        /* link level output procedure */
        struct  x25config *pk_xcp;      /* network specific configuration */
        struct  pklcd *pk_chan[1];      /* actual size == xc_maxlcn+1 */
};

#ifdef KERNEL
struct  pkcb *pkcbhead;         /* head of linked list of networks */
struct  pklcd *pk_listenhead;

char    *pk_name[], *pk_state[];
int     pk_t20, pk_t21, pk_t22, pk_t23;
#endif