The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/geom/label/g_label.h

Version: -  FREEBSD  -  FREEBSD11  -  FREEBSD10  -  FREEBSD9  -  FREEBSD92  -  FREEBSD91  -  FREEBSD90  -  FREEBSD8  -  FREEBSD82  -  FREEBSD81  -  FREEBSD80  -  FREEBSD7  -  FREEBSD74  -  FREEBSD73  -  FREEBSD72  -  FREEBSD71  -  FREEBSD70  -  FREEBSD6  -  FREEBSD64  -  FREEBSD63  -  FREEBSD62  -  FREEBSD61  -  FREEBSD60  -  FREEBSD5  -  FREEBSD55  -  FREEBSD54  -  FREEBSD53  -  FREEBSD52  -  FREEBSD51  -  FREEBSD50  -  FREEBSD4  -  FREEBSD3  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: src/sys/geom/label/g_label.h,v 1.3 2004/07/13 12:01:29 pjd Exp $
   27  */
   28 
   29 #ifndef _G_LABEL_H_
   30 #define _G_LABEL_H_
   31 
   32 #include <sys/endian.h>
   33 
   34 #define G_LABEL_CLASS_NAME      "LABEL"
   35 
   36 #define G_LABEL_MAGIC           "GEOM::LABEL"
   37 #define G_LABEL_VERSION         1
   38 #define G_LABEL_DIR             "label"
   39 
   40 #ifdef _KERNEL
   41 extern u_int g_label_debug;
   42 
   43 #define G_LABEL_DEBUG(lvl, ...) do {                                    \
   44         if (g_label_debug >= (lvl)) {                                   \
   45                 printf("GEOM_LABEL");                                   \
   46                 if (g_label_debug > 0)                                  \
   47                         printf("[%u]", lvl);                            \
   48                 printf(": ");                                           \
   49                 printf(__VA_ARGS__);                                    \
   50                 printf("\n");                                           \
   51         }                                                               \
   52 } while (0)
   53 
   54 typedef void g_label_taste_t (struct g_consumer *cp, char *label, size_t size);
   55 
   56 struct g_label_desc {
   57         g_label_taste_t *ld_taste;
   58         char            *ld_dir;
   59 };
   60 
   61 /* Supported labels. */
   62 extern const struct g_label_desc g_label_ufs;
   63 extern const struct g_label_desc g_label_iso9660;
   64 extern const struct g_label_desc g_label_msdosfs;
   65 #endif  /* _KERNEL */
   66 
   67 struct g_label_metadata {
   68         char            md_magic[16];   /* Magic value. */
   69         uint32_t        md_version;     /* Version number. */
   70         char            md_label[16];   /* Label. */
   71 };
   72 static __inline void
   73 label_metadata_encode(const struct g_label_metadata *md, u_char *data)
   74 {
   75 
   76         bcopy(md->md_magic, data, sizeof(md->md_magic));
   77         le32enc(data + 16, md->md_version);
   78         bcopy(md->md_label, data + 20, sizeof(md->md_label));
   79 }
   80 static __inline void
   81 label_metadata_decode(const u_char *data, struct g_label_metadata *md)
   82 {
   83 
   84         bcopy(data, md->md_magic, sizeof(md->md_magic));
   85         md->md_version = le32dec(data + 16);
   86         bcopy(data + 20, md->md_label, sizeof(md->md_label));
   87 }
   88 #endif  /* _G_LABEL_H_ */

Cache object: 48c4bda20f702a4480d3d6f3453b60d4


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.