Archipelago » qemu

/*

 * Virtio 9p

 *

 * Copyright IBM, Corp. 2010

 *

 * Authors:

 *  Gautham R Shenoy <ego@in.ibm.com>

 *

 * This work is licensed under the terms of the GNU GPL, version 2.  See

 * the COPYING file in the top-level directory.

 *

 */

#include <stdio.h>

#include <string.h>

#include "qemu-fsdev.h"

#include "qemu-queue.h"

#include "osdep.h"

#include "qemu-common.h"

#include "qemu-config.h"

static QTAILQ_HEAD(FsTypeEntry_head, FsTypeListEntry) fstype_entries =

    QTAILQ_HEAD_INITIALIZER(fstype_entries);

static FsTypeTable FsTypes[] = {

    { .name = "local", .ops = &local_ops},

};

int qemu_fsdev_add(QemuOpts *opts)

{

    struct FsTypeListEntry *fsle;

    int i;

    const char *fsdev_id = qemu_opts_id(opts);

    const char *fstype = qemu_opt_get(opts, "fstype");

    const char *path = qemu_opt_get(opts, "path");

    const char *sec_model = qemu_opt_get(opts, "security_model");

    if (!fsdev_id) {

        fprintf(stderr, "fsdev: No id specified\n");

        return -1;

    }

    if (fstype) {

        for (i = 0; i < ARRAY_SIZE(FsTypes); i++) {

            if (strcmp(FsTypes[i].name, fstype) == 0) {

                break;

            }

        }

        if (i == ARRAY_SIZE(FsTypes)) {

            fprintf(stderr, "fsdev: fstype %s not found\n", fstype);

            return -1;

        }

    } else {

        fprintf(stderr, "fsdev: No fstype specified\n");

        return -1;

    }

    if (!sec_model) {

        fprintf(stderr, "fsdev: No security_model specified.\n");

        return -1;

    }

    if (!path) {

        fprintf(stderr, "fsdev: No path specified.\n");

        return -1;

    }

    fsle = qemu_malloc(sizeof(*fsle));

    fsle->fse.fsdev_id = qemu_strdup(fsdev_id);

    fsle->fse.path = qemu_strdup(path);

    fsle->fse.security_model = qemu_strdup(sec_model);

    fsle->fse.ops = FsTypes[i].ops;

    QTAILQ_INSERT_TAIL(&fstype_entries, fsle, next);

    return 0;

}

FsTypeEntry *get_fsdev_fsentry(char *id)

{

    if (id) {

        struct FsTypeListEntry *fsle;

        QTAILQ_FOREACH(fsle, &fstype_entries, next) {

            if (strcmp(fsle->fse.fsdev_id, id) == 0) {

                return &fsle->fse;

            }

        }

    }

    return NULL;

}

static void fsdev_register_config(void)

{

    qemu_add_opts(&qemu_fsdev_opts);

    qemu_add_opts(&qemu_virtfs_opts);

}

machine_init(fsdev_register_config);