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 <config.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);

	}

}

static 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.

	 */

#ifdef CONFIG_START_BD

	srv_start("/srv/ata_bd");

	srv_start("/srv/gxe_bd");

#else

	(void) srv_start;

#endif

#ifdef CONFIG_MOUNT_DATA

	mount_data();

#else

	(void) mount_data;

#endif

	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");

	usleep(1000000);

	spawn("/srv/pci");

	return 0;

}

/** @}

 */