Archipelago » blktap-utils

/* 

 * Copyright (c) 2008, XenSource Inc.

 * 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.

 *     * Neither the name of XenSource Inc. nor the names of its contributors

 *       may be used to endorse or promote products derived from this software

 *       without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "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 COPYRIGHT OWNER

 * OR CONTRIBUTORS 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

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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef _LVM_UTIL_H_

#define _LVM_UTIL_H_

#include <inttypes.h>

#define MAX_NAME_SIZE            256

#define LVM_SEG_TYPE_LINEAR      1

#define LVM_SEG_TYPE_UNKNOWN     2

struct lv_segment {

        uint8_t                  type;

        char                     device[MAX_NAME_SIZE];

        uint64_t                 pe_start;

        uint64_t                 pe_size;

};

struct lv {

        char                     name[MAX_NAME_SIZE];

        uint64_t                 size;

        uint32_t                 segments;

        struct lv_segment        first_segment;

};

struct pv {

        char                     name[MAX_NAME_SIZE];

        uint64_t                 start;

};

struct vg {

        char                     name[MAX_NAME_SIZE];

        uint64_t                 extent_size;

        int                      pv_cnt;

        struct pv               *pvs;

        int                      lv_cnt;

        struct lv               *lvs;

};

int lvm_scan_vg(const char *vg_name, struct vg *vg);

void lvm_free_vg(struct vg *vg);

#endif