sys/isofs/iso.h

/*
 *      $Id: iso.h,v 1.3 1993/07/19 13:40:01 cgd Exp $
 */

#define ISODCL(from, to) (to - from + 1)

struct iso_volume_descriptor {
        char type[ISODCL(1,1)]; /* 711 */
        char id[ISODCL(2,6)];
        char version[ISODCL(7,7)];
        char data[ISODCL(8,2048)];
};

/* volume descriptor types */
#define ISO_VD_PRIMARY 1
#define ISO_VD_END 255

#define ISO_STANDARD_ID "CD001"
#define ISO_ECMA_ID     "CDW01"

struct iso_primary_descriptor {
        char type                       [ISODCL (  1,   1)]; /* 711 */
        char id                         [ISODCL (  2,   6)];
        char version                    [ISODCL (  7,   7)]; /* 711 */
        char unused1                    [ISODCL (  8,   8)];
        char system_id                  [ISODCL (  9,  40)]; /* achars */
        char volume_id                  [ISODCL ( 41,  72)]; /* dchars */
        char unused2                    [ISODCL ( 73,  80)];
        char volume_space_size          [ISODCL ( 81,  88)]; /* 733 */
        char unused3                    [ISODCL ( 89, 120)];
        char volume_set_size            [ISODCL (121, 124)]; /* 723 */
        char volume_sequence_number     [ISODCL (125, 128)]; /* 723 */
        char logical_block_size         [ISODCL (129, 132)]; /* 723 */
        char path_table_size            [ISODCL (133, 140)]; /* 733 */
        char type_l_path_table          [ISODCL (141, 144)]; /* 731 */
        char opt_type_l_path_table      [ISODCL (145, 148)]; /* 731 */
        char type_m_path_table          [ISODCL (149, 152)]; /* 732 */
        char opt_type_m_path_table      [ISODCL (153, 156)]; /* 732 */
        char root_directory_record      [ISODCL (157, 190)]; /* 9.1 */
        char volume_set_id              [ISODCL (191, 318)]; /* dchars */
        char publisher_id               [ISODCL (319, 446)]; /* achars */
        char preparer_id                [ISODCL (447, 574)]; /* achars */
        char application_id             [ISODCL (575, 702)]; /* achars */
        char copyright_file_id          [ISODCL (703, 739)]; /* 7.5 dchars */
        char abstract_file_id           [ISODCL (740, 776)]; /* 7.5 dchars */
        char bibliographic_file_id      [ISODCL (777, 813)]; /* 7.5 dchars */
        char creation_date              [ISODCL (814, 830)]; /* 8.4.26.1 */
        char modification_date          [ISODCL (831, 847)]; /* 8.4.26.1 */
        char expiration_date            [ISODCL (848, 864)]; /* 8.4.26.1 */
        char effective_date             [ISODCL (865, 881)]; /* 8.4.26.1 */
        char file_structure_version     [ISODCL (882, 882)]; /* 711 */
        char unused4                    [ISODCL (883, 883)];
        char application_data           [ISODCL (884, 1395)];
        char unused5                    [ISODCL (1396, 2048)];
};

struct iso_directory_record {
        char length                     [ISODCL (1, 1)]; /* 711 */
        char ext_attr_length            [ISODCL (2, 2)]; /* 711 */
        unsigned char extent            [ISODCL (3, 10)]; /* 733 */
        unsigned char size              [ISODCL (11, 18)]; /* 733 */
        char date                       [ISODCL (19, 25)]; /* 7 by 711 */
        char flags                      [ISODCL (26, 26)];
        char file_unit_size             [ISODCL (27, 27)]; /* 711 */
        char interleave                 [ISODCL (28, 28)]; /* 711 */
        char volume_sequence_number     [ISODCL (29, 32)]; /* 723 */
        char name_len                   [ISODCL (33, 33)]; /* 711 */
        char name                       [0];
};

/* CD-ROM Fromat type */
enum ISO_FTYPE  { ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_ECMA };

struct iso_mnt {
        int logical_block_size;
        int volume_space_size;
        struct vnode *im_devvp;
        char im_fsmnt[50];

        int im_ronly;
        int im_fmod;
        struct mount *im_mountp;
        dev_t im_dev;

        int im_bshift;
        int im_bmask;
        int im_bsize;

        char root[ISODCL (157, 190)];
        int root_extent;
        int root_size;
        enum ISO_FTYPE  iso_ftype;
};

#define VFSTOISOFS(mp)  ((struct iso_mnt *)((mp)->mnt_data))

#define iso_blkoff(imp, loc) ((loc) & ~(imp)->im_bmask)
#define iso_lblkno(imp, loc) ((loc) >> (imp)->im_bshift)
#define iso_blksize(imp, ip, lbn) ((imp)->im_bsize)
#define iso_lblktosize(imp, blk) ((blk) << (imp)->im_bshift)


int isofs_mount __P((struct mount *mp, char *path, caddr_t data,
        struct nameidata *ndp, struct proc *p));
int isofs_start __P((struct mount *mp, int flags, struct proc *p));
int isofs_unmount __P((struct mount *mp, int mntflags, struct proc *p));
int isofs_root __P((struct mount *mp, struct vnode **vpp));
int isofs_statfs __P((struct mount *mp, struct statfs *sbp, struct proc *p));
int isofs_sync __P((struct mount *mp, int waitfor));
int isofs_fhtovp __P((struct mount *mp, struct fid *fhp, struct vnode **vpp));
int isofs_vptofh __P((struct vnode *vp, struct fid *fhp));
int isofs_init __P(());