/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */

#include        "dispatch.h"
#include <syslog.h>

static void             r_H(),
                        r_HS();

static DISPATCH                 dispatch_table[] = {
/* R_BAD_MESSAGE                */      0,              D_BADMSG,
/* S_NEW_QUEUE                  */      0,                      D_BADMSG,
/* R_NEW_QUEUE                  */      0,                      D_BADMSG,
/* S_ALLOC_FILES                */      s_alloc_files,          0,
/* R_ALLOC_FILES                */      0,                      D_BADMSG,
/* S_PRINT_REQUEST              */      s_print_request,        0,
/* R_PRINT_REQUEST              */      0,                      D_BADMSG,
/* S_START_CHANGE_REQUEST       */      s_start_change_request, 0,
/* R_START_CHANGE_REQUEST       */      0,                      D_BADMSG,
/* S_END_CHANGE_REQUEST         */      s_end_change_request,   0,
/* R_END_CHANGE_REQUEST         */      0,                      D_BADMSG,
/* S_CANCEL_REQUEST             */      s_cancel_request,       0,
/* R_CANCEL_REQUEST             */      0,                      D_BADMSG,
/* S_INQUIRE_REQUEST            */      0,                      D_BADMSG,
/* R_INQUIRE_REQUEST            */      0,                      D_BADMSG,
/* S_LOAD_PRINTER               */      s_load_printer,         D_ADMIN,
/* R_LOAD_PRINTER               */      r_H,                    D_BADMSG,
/* S_UNLOAD_PRINTER             */      s_unload_printer,       D_ADMIN,
/* R_UNLOAD_PRINTER             */      r_H,                    D_BADMSG,
/* S_INQUIRE_PRINTER_STATUS     */      s_inquire_printer_status, 0,
/* R_INQUIRE_PRINTER_STATUS     */      0,                      D_BADMSG,
/* S_LOAD_CLASS                 */      s_load_class,           D_ADMIN,
/* R_LOAD_CLASS                 */      r_H,                    D_BADMSG,
/* S_UNLOAD_CLASS               */      s_unload_class,         D_ADMIN,
/* R_UNLOAD_CLASS               */      r_H,                    D_BADMSG,
/* S_INQUIRE_CLASS              */      s_inquire_class,        0,
/* R_INQUIRE_CLASS              */      0,                      D_BADMSG,
/* S_MOUNT                      */      s_mount,                D_ADMIN,
/* R_MOUNT                      */      r_H,                    D_BADMSG,
/* S_UNMOUNT                    */      s_unmount,              D_ADMIN,
/* R_UNMOUNT                    */      r_H,                    D_BADMSG,
/* S_MOVE_REQUEST               */      s_move_request,         D_ADMIN,
/* R_MOVE_REQUEST               */      r_H,                    D_BADMSG,
/* S_MOVE_DEST                  */      s_move_dest,            D_ADMIN,
/* R_MOVE_DEST                  */      r_HS,                   D_BADMSG,
/* S_ACCEPT_DEST                */      s_accept_dest,          D_ADMIN,
/* R_ACCEPT_DEST                */      r_H,                    D_BADMSG,
/* S_REJECT_DEST                */      s_reject_dest,          D_ADMIN,
/* R_REJECT_DEST                */      r_H,                    D_BADMSG,
/* S_ENABLE_DEST                */      s_enable_dest,          D_ADMIN,
/* R_ENABLE_DEST                */      r_H,                    D_BADMSG,
/* S_DISABLE_DEST               */      s_disable_dest,         D_ADMIN,
/* R_DISABLE_DEST               */      r_HS,                   D_BADMSG,
/* S_LOAD_FILTER_TABLE          */      s_load_filter_table,    D_ADMIN,
/* R_LOAD_FILTER_TABLE          */      r_H,                    D_BADMSG,
/* S_UNLOAD_FILTER_TABLE        */      s_unload_filter_table,  D_ADMIN,
/* R_UNLOAD_FILTER_TABLE        */      r_H,                    D_BADMSG,
/* S_LOAD_PRINTWHEEL            */      s_load_printwheel,      D_ADMIN,
/* R_LOAD_PRINTWHEEL            */      r_H,                    D_BADMSG,
/* S_UNLOAD_PRINTWHEEL          */      s_unload_printwheel,    D_ADMIN,
/* R_UNLOAD_PRINTWHEEL          */      r_H,                    D_BADMSG,
/* S_LOAD_USER_FILE             */      s_load_user_file,       D_ADMIN,
/* R_LOAD_USER_FILE             */      r_H,                    D_BADMSG,
/* S_UNLOAD_USER_FILE           */      s_unload_user_file,     D_ADMIN,
/* R_UNLOAD_USER_FILE           */      r_H,                    D_BADMSG,
/* S_LOAD_FORM                  */      s_load_form,            D_ADMIN,
/* R_LOAD_FORM                  */      r_H,                    D_BADMSG,
/* S_UNLOAD_FORM                */      s_unload_form,          D_ADMIN,
/* R_UNLOAD_FORM                */      r_H,                    D_BADMSG,
/* S_GETSTATUS                  */      0,                      D_ADMIN,
/* R_GETSTATUS                  */      0,                      D_BADMSG,
/* S_QUIET_ALERT                */      s_quiet_alert,          D_ADMIN,
/* R_QUIET_ALERT                */      r_H,                    D_BADMSG,
/* S_SEND_FAULT                 */      s_send_fault,           0,
/* R_SEND_FAULT                 */      0,                      D_BADMSG,
/* S_SHUTDOWN                   */      s_shutdown,             D_ADMIN,
/* R_SHUTDOWN                   */      r_H,                    D_BADMSG,
/* S_GOODBYE                    */      0,                      D_BADMSG,
/* S_CHILD_DONE                 */      s_child_done,           0,
/* I_GET_TYPE                   */      0,                      D_BADMSG,
/* I_QUEUE_CHK                  */      0,                      D_BADMSG,
/* R_CONNECT                    */      0,                      D_BADMSG,
/* S_GET_STATUS                 */      0,                      D_BADMSG,
/* R_GET_STATUS                 */      0,                      D_BADMSG,
/* S_INQUIRE_REQUEST_RANK       */      s_inquire_request_rank, 0,
/* R_INQUIRE_REQUEST_RANK       */      0,                      D_BADMSG,
/* S_CANCEL                     */      s_cancel,               0,
/* R_CANCEL                     */      0,                      D_BADMSG,
/* S_NEW_CHILD                  */      0,                      D_BADMSG,
/* R_NEW_CHILD                  */      0,                      D_BADMSG,
/* S_SEND_JOB                   */      0,                      D_BADMSG,
/* R_SEND_JOB                   */      0,                      D_BADMSG,
/* S_JOB_COMPLETED              */      0,                      D_BADMSG,
/* R_JOB_COMPLETED              */      0,                      D_BADMSG,
/* S_INQUIRE_REMOTE_PRINTER     */      0,                      D_BADMSG,
/* R_INQUIRE_REMOTE_PRINTER     */      0,                      D_BADMSG,
/* S_LOAD_SYSTEM                */      0,                      D_BADMSG,
/* R_LOAD_SYSTEM                */      0,                      D_BADMSG,
/* S_UNLOAD_SYSTEM              */      0,                      D_BADMSG,
/* R_UNLOAD_SYSTEM              */      0,                      D_BADMSG,
/* S_CLEAR_FAULT                */      s_clear_fault,          0,
/* R_CLEAR_FAULT                */      0,                      D_BADMSG,
/* S_MOUNT_TRAY                 */      s_mount_tray,           D_ADMIN,
/* R_MOUNT_TRAY                 */      r_H,                    D_BADMSG,
/* S_UNMOUNT_TRAY               */      s_unmount_tray,         D_ADMIN,
/* R_UNMOUNT_TRAY               */      r_H,                    D_BADMSG,
/* S_MAX_TRAYS                  */      s_max_trays,            D_ADMIN,
/* R_MAX_TRAYS                  */      r_H,                    D_BADMSG,
/* S_PAPER_CHANGED              */      s_paper_changed,        0,
/* R_PAPER_CHANGED              */      0,                      D_BADMSG,
/* S_PAPER_ALLOWED              */      s_paper_allowed,        0,
/* R_PAPER_ALLOWED              */      0,      D_BADMSG,
/* S_PASS_PEER_CONNECTION       */  s_pass_peer_connection,     0,
/* R_PASS_PEER_CONNECTION       */  0,                  D_BADMSG,
};

static char     *dispatch_names[] = {
"R_BAD_MESSAGE",
"S_NEW_QUEUE",
"R_NEW_QUEUE",
"S_ALLOC_FILES",
"R_ALLOC_FILES",
"S_PRINT_REQUEST",
"R_PRINT_REQUEST",
"S_START_CHANGE_REQUEST",
"R_START_CHANGE_REQUEST",
"S_END_CHANGE_REQUEST",
"R_END_CHANGE_REQUEST",
"S_CANCEL_REQUEST",
"R_CANCEL_REQUEST",
"S_INQUIRE_REQUEST",
"R_INQUIRE_REQUEST",
"S_LOAD_PRINTER",
"R_LOAD_PRINTER",
"S_UNLOAD_PRINTER",
"R_UNLOAD_PRINTER",
"S_INQUIRE_PRINTER_STATUS",
"R_INQUIRE_PRINTER_STATUS",
"S_LOAD_CLASS",
"R_LOAD_CLASS",
"S_UNLOAD_CLASS",
"R_UNLOAD_CLASS",
"S_INQUIRE_CLASS",
"R_INQUIRE_CLASS",
"S_MOUNT",
"R_MOUNT",
"S_UNMOUNT",
"R_UNMOUNT",
"S_MOVE_REQUEST",
"R_MOVE_REQUEST",
"S_MOVE_DEST",
"R_MOVE_DEST",
"S_ACCEPT_DEST",
"R_ACCEPT_DEST",
"S_REJECT_DEST",
"R_REJECT_DEST",
"S_ENABLE_DEST",
"R_ENABLE_DEST",
"S_DISABLE_DEST",
"R_DISABLE_DEST",
"S_LOAD_FILTER_TABLE",
"R_LOAD_FILTER_TABLE",
"S_UNLOAD_FILTER_TABLE",
"R_UNLOAD_FILTER_TABLE",
"S_LOAD_PRINTWHEEL",
"R_LOAD_PRINTWHEEL",
"S_UNLOAD_PRINTWHEEL",
"R_UNLOAD_PRINTWHEEL",
"S_LOAD_USER_FILE",
"R_LOAD_USER_FILE",
"S_UNLOAD_USER_FILE",
"R_UNLOAD_USER_FILE",
"S_LOAD_FORM",
"R_LOAD_FORM",
"S_UNLOAD_FORM",
"R_UNLOAD_FORM",
"S_GETSTATUS",
"R_GETSTATUS",
"S_QUIET_ALERT",
"R_QUIET_ALERT",
"S_SEND_FAULT",
"R_SEND_FAULT",
"S_SHUTDOWN",
"R_SHUTDOWN",
"S_GOODBYE",
"S_CHILD_DONE",
"I_GET_TYPE",
"I_QUEUE_CHK",
"R_CONNECT",
"S_GET_STATUS",
"R_GET_STATUS",
"S_INQUIRE_REQUEST_RANK",
"R_INQUIRE_REQUEST_RANK",
"S_CANCEL",
"R_CANCEL",
"S_NEW_CHILD",
"R_NEW_CHILD",
"S_SEND_JOB",
"R_SEND_JOB",
"S_JOB_COMPLETED",
"R_JOB_COMPLETED",
"S_INQUIRE_REMOTE_PRINTER",
"R_INQUIRE_REMOTE_PRINTER",
"S_LOAD_SYSTEM",
"R_LOAD_SYSTEM",
"S_UNLOAD_SYSTEM",
"R_UNLOAD_SYSTEM",
"S_CLEAR_FAULT",
"R_CLEAR_FAULT",
"S_MOUNT_TRAY",
"R_MOUNT_TRAY",
"S_UNMOUNT_TRAY",
"R_UNMOUNT_TRAY",
"S_MAX_TRAYS",
"R_MAX_TRAYS",
"S_PAPER_CHANGED",
"R_PAPER_CHANGED",
"S_PAPER_ALLOWED",
"R_PAPER_ALLOWED",
"S_PASS_PEER_CONNECTION",
"R_PASS_PEER_CONNECTION",
};

/* see include/msgs.h */
static char     *status_names[] = {
"MOK",
"MOKMORE",
"MOKREMOTE",
"MMORERR",
"MNODEST",
"MERRDEST",
"MDENYDEST",
"MNOMEDIA",
"MDENYMEDIA",
"MNOFILTER",
"MNOINFO",
"MNOMEM",
"MNOMOUNT",
"MNOOPEN",
"MNOPERM",
"MNOSTART",
"MUNKNOWN",
"M2LATE",
"MNOSPACE",
"MBUSY",
"MTRANSMITERR",
"MNOMORE",
"MGONEREMOTE",
"MNOTRAY"
};

#define LAST_STATUS 23

/*
 * dispatchName() - ROUTINE TO GIVE ASCII DISPATCH NAME
 */

char *
dispatchName(int type)
{
        if (type <= 0 || type > LAST_MESSAGE)
                type = 0;
        return (dispatch_names[type]);
}

char *
statusName(int status)
{
        if (status < 0 || status > LAST_STATUS)
                return ("unknown");
        return (status_names[status]);
}

/*
 * dispatch() - DISPATCH A ROUTINE TO HANDLE A MESSAGE
 */

void
dispatch(int type, char *m, MESG *md)
{
        register DISPATCH       *pd     = &dispatch_table[type];

        syslog(LOG_DEBUG, "dispatch(%s, %s, 0x%8.8x)",
            dispatchName(type), m, md);

        if (type <= 0 || type >= LAST_MESSAGE || pd->fncp == NULL)
                mputm(md, R_BAD_MESSAGE);

        else if (!pd->fncp || pd->flags & D_BADMSG)
                mputm(md, R_BAD_MESSAGE);

        else if (pd->flags & D_ADMIN && !md->admin)
                if ((++pd)->fncp)
                        (*pd->fncp) (md, type+1);
                else
                        mputm(md, R_BAD_MESSAGE);

        else if (pd->flags & D_SYSTEM && md->type != MD_CHILD &&
            md->type != MD_BOUND)
                if ((++pd)->fncp)
                        (*pd->fncp) (md, type+1);
                else
                        mputm(md, R_BAD_MESSAGE);

        else
                (*pd->fncp) (m, md);
}

/*
 * r_H() - SEND MNOPERM RESPONSE MESSAGE
 * r_HS() - SEND MNOPERM RESPONSE MESSAGE
 */

static void
r_H(MESG *md, int type)
{
        mputm(md, type, MNOPERM);
}

static void
r_HS(MESG *md, int type)
{
        mputm(md, type, MNOPERM, "");
}