Subversion Repositories HelenOS

/*
 * Copyright (c) 2005 Martin Decky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup init Init
 * @brief Init process for user space environment configuration.
 * @{
 */
/**
 * @file
 */

#include <stdio.h>
#include <unistd.h>
#include <ipc/ipc.h>
#include <vfs/vfs.h>
#include <bool.h>
#include <errno.h>
#include <fcntl.h>
#include <task.h>
#include <malloc.h>
#include <macros.h>
#include <string.h>
#include <devmap.h>
#include "init.h"

static void info_print(void)
{
    printf(NAME ": HelenOS init\n");
}

static bool mount_root(const char *fstype)
{
    int rc = -1;
    char *opts = "";
    const char *root_dev = "initrd";
    
    if (str_cmp(fstype, "tmpfs") == 0)
        opts = "restore";

    while (rc < 0) {
        rc = mount(fstype, "/", root_dev, opts, IPC_FLAG_BLOCKING);
        
        switch (rc) {
        case EOK:
            printf(NAME ": Root filesystem mounted, %s at %s\n",
                fstype, root_dev);
            break;
        case EBUSY:
            printf(NAME ": Root filesystem already mounted\n");
            break;
        case ELIMIT:
            printf(NAME ": Unable to mount root filesystem\n");
            return false;
        case ENOENT:
            printf(NAME ": Unknown filesystem type (%s)\n", fstype);
            return false;
        }
    }
    
    return true;
}

static bool mount_devfs(void)
{
    int rc = -1;
    
    while (rc < 0) {
        rc = mount("devfs", "/dev", "null", "", IPC_FLAG_BLOCKING);
        
        switch (rc) {
        case EOK:
            printf(NAME ": Device filesystem mounted\n");
            break;
        case EBUSY:
            printf(NAME ": Device filesystem already mounted\n");
            break;
        case ELIMIT:
            printf(NAME ": Unable to mount device filesystem\n");
            return false;
        case ENOENT:
            printf(NAME ": Unknown filesystem type (devfs)\n");
            return false;
        }
    }
    
    return true;
}

static void spawn(char *fname)
{
    char *argv[2];
    
    printf(NAME ": Spawning %s\n", fname);
    
    argv[0] = fname;
    argv[1] = NULL;
    
    if (!task_spawn(fname, argv))
        printf(NAME ": Error spawning %s\n", fname);
}

static void getvc(char *dev, char *app)
{
    char *argv[4];
    char vc[MAX_DEVICE_NAME];
    
    snprintf(vc, MAX_DEVICE_NAME, "/dev/%s", dev);
    
    printf(NAME ": Spawning getvc on %s\n", vc);
    
    dev_handle_t handle;
    devmap_device_get_handle(dev, &handle, IPC_FLAG_BLOCKING);
    
    if (handle >= 0) {
        argv[0] = "/app/getvc";
        argv[1] = vc;
        argv[2] = app;
        argv[3] = NULL;
        
        if (!task_spawn("/app/getvc", argv))
            printf(NAME ": Error spawning getvc on %s\n", vc);
    } else
        printf(NAME ": Error waiting on %s\n", vc);
}

int main(int argc, char *argv[])
{
    info_print();
    
    if (!mount_root(STRING(RDFMT))) {
        printf(NAME ": Exiting\n");
        return -1;
    }
    
    spawn("/srv/devfs");
    
    if (!mount_devfs()) {
        return(NAME ": Exiting\n");
        return -2;
    }
    
    spawn("/srv/fb");
    spawn("/srv/kbd");
    spawn("/srv/console");
    spawn("/srv/fhc");
    spawn("/srv/obio");
    
    getvc("vc0", "/app/bdsh");
    getvc("vc1", "/app/bdsh");
    getvc("vc2", "/app/bdsh");
    getvc("vc3", "/app/bdsh");
    getvc("vc4", "/app/bdsh");
    getvc("vc5", "/app/bdsh");
    getvc("vc6", "/app/klog");
    
    return 0;
}

/** @}
 */