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1335 jermar 1
/*
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 * Copyright (c) 2006 Ondrej Palkovsky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup ns
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 * @{
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 */
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/**
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 * @file  ns.c
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 * @brief Naming service for HelenOS IPC.
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 */
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#include <ipc/ipc.h>
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#include <ipc/services.h>
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#include <ipc/ns.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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#include <as.h>
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#include <ddi.h>
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#include <event.h>
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#include <macros.h>
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#include <sysinfo.h>
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#include "ns.h"
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#include "service.h"
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#include "clonable.h"
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#include "task.h"
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static void *clockaddr = NULL;
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static void *klogaddr = NULL;
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static void get_as_area(ipc_callid_t callid, ipc_call_t *call, void *ph_addr,
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    size_t pages, void **addr)
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{
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    if (ph_addr == NULL) {
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        ipc_answer_0(callid, ENOENT);
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        return;
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    }
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    if (*addr == NULL) {
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        *addr = as_get_mappable_page(pages * PAGE_SIZE);
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        if (*addr == NULL) {
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            ipc_answer_0(callid, ENOENT);
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            return;
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        }
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        if (physmem_map(ph_addr, *addr, pages,
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            AS_AREA_READ | AS_AREA_CACHEABLE) != 0) {
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            ipc_answer_0(callid, ENOENT);
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            return;
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        }
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    }
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    ipc_answer_2(callid, EOK, (ipcarg_t) *addr, AS_AREA_READ);
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}
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int main(int argc, char **argv)
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{
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    printf(NAME ": HelenOS IPC Naming Service\n");
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    int rc = service_init();
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    if (rc != EOK)
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        return rc;
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    rc = clonable_init();
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    if (rc != EOK)
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        return rc;
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    rc = task_init();
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    if (rc != EOK)
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        return rc;
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    printf(NAME ": Accepting connections\n");
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    while (true) {
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        process_pending_conn();
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        process_pending_wait();
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        ipc_call_t call;
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        ipc_callid_t callid = ipc_wait_for_call(&call);
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        task_id_t id;
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        ipcarg_t retval;
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        switch (IPC_GET_METHOD(call)) {
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        case IPC_M_SHARE_IN:
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            switch (IPC_GET_ARG3(call)) {
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            case SERVICE_MEM_REALTIME:
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                get_as_area(callid, &call,
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                    (void *) sysinfo_value("clock.faddr"),
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                    1, &clockaddr);
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                break;
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            case SERVICE_MEM_KLOG:
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                get_as_area(callid, &call,
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                    (void *) sysinfo_value("klog.faddr"),
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                    sysinfo_value("klog.pages"), &klogaddr);
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                break;
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            default:
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                ipc_answer_0(callid, ENOENT);
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            }
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            continue;
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        case IPC_M_PHONE_HUNGUP:
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            retval = ns_task_disconnect(&call);
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            break;
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        case IPC_M_CONNECT_TO_ME:
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            /*
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             * Server requests service registration.
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             */
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            if (service_clonable(IPC_GET_ARG1(call))) {
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                register_clonable(IPC_GET_ARG1(call),
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                    IPC_GET_ARG5(call), &call, callid);
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                continue;
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            } else {
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                retval = register_service(IPC_GET_ARG1(call),
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                    IPC_GET_ARG5(call), &call);
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            }
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            break;
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        case IPC_M_CONNECT_ME_TO:
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            /*
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             * Client requests to be connected to a service.
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             */
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            if (service_clonable(IPC_GET_ARG1(call))) {
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                connect_to_clonable(IPC_GET_ARG1(call),
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                    &call, callid);
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                continue;
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            } else {
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                connect_to_service(IPC_GET_ARG1(call), &call,
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                    callid);
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                continue;
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            }
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            break;
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        case NS_PING:
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            retval = EOK;
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            break;
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        case NS_TASK_WAIT:
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            id = (task_id_t)
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                MERGE_LOUP32(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
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            wait_for_task(id, &call, callid);
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            continue;
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        case NS_ID_INTRO:
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            retval = ns_task_id_intro(&call);
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            break;
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        case NS_RETVAL:
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            retval = ns_task_retval(&call);
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            break;
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        default:
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            retval = ENOENT;
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            break;
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        }
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        if (!(callid & IPC_CALLID_NOTIFICATION))
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            ipc_answer_0(callid, retval);
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    }
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    /* Not reached */
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    return 0;
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}
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4377 svoboda 185
/**
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 * @}
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 */