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 <sys/stat.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)

{

    char *opts = "";

    const char *root_dev = "initrd";

    if (str_cmp(fstype, "tmpfs") == 0)

        opts = "restore";

    int 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");

        return false;

    case ELIMIT:

        printf(NAME ": Unable to mount root filesystem\n");

        return false;

    case ENOENT:

        printf(NAME ": Unknown filesystem type (%s)\n", fstype);

        return false;

    default:

        printf(NAME ": Error mounting root filesystem (%d)\n", rc);

        return false;

    }

    return true;

}

static bool mount_devfs(void)

{

    char null[MAX_DEVICE_NAME];

    int null_id = devmap_null_create();

    if (null_id == -1) {

        printf(NAME ": Unable to create null device\n");

        return false;

    }

    snprintf(null, MAX_DEVICE_NAME, "null%d", null_id);

    int 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");

        devmap_null_destroy(null_id);

        return false;

    case ELIMIT:

        printf(NAME ": Unable to mount device filesystem\n");

        devmap_null_destroy(null_id);

        return false;

    case ENOENT:

        printf(NAME ": Unknown filesystem type (devfs)\n");

        devmap_null_destroy(null_id);

        return false;

    default:

        printf(NAME ": Error mounting device filesystem (%d)\n", rc);

        devmap_null_destroy(null_id);

        return false;

    }

    return true;

}

static void spawn(char *fname)

{

    char *argv[2];

    struct stat s;

    if (stat(fname, &s) == ENOENT)

        return;

    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 srv_start(char *fname)

{

    char *argv[2];

    task_id_t id;

    task_exit_t texit;

    int rc, retval;

    struct stat s;

    if (stat(fname, &s) == ENOENT)

        return;

    printf(NAME ": Starting %s\n", fname);

    argv[0] = fname;

    argv[1] = NULL;

    id = task_spawn(fname, argv);

    if (!id) {

        printf(NAME ": Error spawning %s\n", fname);

        return;

    }

    rc = task_wait(id, &texit, &retval);

    if (rc != EOK) {

        printf(NAME ": Error waiting for %s\n", fname);

        return;

    }

    if (texit != TASK_EXIT_NORMAL || retval != 0) {

        printf(NAME ": Server %s failed to start (returned %d)\n",

            fname, retval);

    }

}

static void getvc(char *dev, char *app)

{

    char *argv[4];

    char vc[MAX_DEVICE_NAME];

    int rc;

    snprintf(vc, MAX_DEVICE_NAME, "/dev/%s", dev);

    printf(NAME ": Spawning getvc on %s\n", vc);

    dev_handle_t handle;

    rc = devmap_device_get_handle(dev, &handle, IPC_FLAG_BLOCKING);

    if (rc == EOK) {

        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);

    }

}

void mount_data(void)

{

    int rc;

    printf("Trying to mount disk0 on /data... ");

    fflush(stdout);

    rc = mount("fat", "/data", "disk0", "wtcache", 0);

    if (rc == EOK)

        printf("OK\n");

    else

        printf("Failed\n");

}

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()) {

        printf(NAME ": Exiting\n");

        return -2;

    }

    spawn("/srv/fb");

    spawn("/srv/kbd");

    spawn("/srv/console");

    spawn("/srv/fhc");

    spawn("/srv/obio");

    /*

     * Start these synchronously so that mount_data() can be

     * non-blocking.

     */

    srv_start("/srv/ata_bd");

    srv_start("/srv/gxe_bd");

    mount_data();

    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;

}

/** @}

 */