sys/fs/udf/udf_subr.h

   1 /* $NetBSD: udf_subr.h,v 1.16 2009/06/25 17:16:33 reinoud Exp $ */
   2
   3 /*
   4  * Copyright (c) 2006, 2008 Reinoud Zandijk
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  */
  28
  29 #ifndef _FS_UDF_UDF_SUBR_H_
  30 #define _FS_UDF_UDF_SUBR_H_
  31
  32 /* handies */
  33 #define VFSTOUDF(mp)    ((struct udf_mount *)mp->mnt_data)
  34
  35
  36 /* device information updating */
  37 int udf_update_trackinfo(struct udf_mount *ump, struct mmc_trackinfo *trackinfo);
  38 int udf_update_discinfo(struct udf_mount *ump);
  39 int udf_search_tracks(struct udf_mount *ump, struct udf_args *args,
  40                   int *first_tracknr, int *last_tracknr);
  41 int udf_search_writing_tracks(struct udf_mount *ump);
  42 int udf_setup_writeparams(struct udf_mount *ump);
  43 int udf_synchronise_caches(struct udf_mount *ump);
  44
  45 /* tags operations */
  46 int udf_fidsize(struct fileid_desc *fid);
  47 int udf_check_tag(void *blob);
  48 int udf_check_tag_payload(void *blob, uint32_t max_length);
  49 void udf_validate_tag_sum(void *blob);
  50 void udf_validate_tag_and_crc_sums(void *blob);
  51 int udf_tagsize(union dscrptr *dscr, uint32_t udf_sector_size);
  52
  53 /* read/write descriptors */
  54 int udf_read_phys_sectors(struct udf_mount *ump, int what, void *blob,
  55         uint32_t start, uint32_t sectors);
  56 int udf_write_phys_sectors(struct udf_mount *ump, int what, void *blob,
  57         uint32_t start, uint32_t sectors);
  58 int udf_read_phys_dscr(
  59                 struct udf_mount *ump,
  60                 uint32_t sector,
  61                 struct malloc_type *mtype,              /* where to allocate */
  62                 union dscrptr **dstp);                  /* out */
  63
  64 int udf_write_phys_dscr_sync(struct udf_mount *ump, struct udf_node *udf_node,
  65                 int what, union dscrptr *dscr,
  66                 uint32_t sector, uint32_t logsector);
  67 int udf_write_phys_dscr_async(struct udf_mount *ump, struct udf_node *udf_node,
  68                       int what, union dscrptr *dscr,
  69                       uint32_t sector, uint32_t logsector,
  70                       void (*dscrwr_callback)(struct buf *));
  71
  72 /* read/write node descriptors */
  73 int udf_create_logvol_dscr(struct udf_mount *ump, struct udf_node *udf_node,
  74         struct long_ad *icb, union dscrptr **dscrptr);
  75 void udf_free_logvol_dscr(struct udf_mount *ump, struct long_ad *icb_loc,
  76         void *dscr);
  77 int udf_read_logvol_dscr(struct udf_mount *ump, struct long_ad *icb,
  78         union dscrptr **dscrptr);
  79 int udf_write_logvol_dscr(struct udf_node *udf_node, union dscrptr *dscr,
  80         struct long_ad *icb, int waitfor);
  81
  82
  83 /* volume descriptors readers and checkers */
  84 int udf_read_anchors(struct udf_mount *ump);
  85 int udf_read_vds_space(struct udf_mount *ump);
  86 int udf_process_vds(struct udf_mount *ump);
  87 int udf_read_vds_tables(struct udf_mount *ump);
  88 int udf_read_rootdirs(struct udf_mount *ump);
  89
  90 /* open/close and sync volumes */
  91 int udf_open_logvol(struct udf_mount *ump);
  92 int udf_close_logvol(struct udf_mount *ump, int mntflags);
  93 int udf_writeout_vat(struct udf_mount *ump);
  94 int udf_write_physical_partition_spacetables(struct udf_mount *ump, int waitfor);
  95 int udf_write_metadata_partition_spacetable(struct udf_mount *ump, int waitfor);
  96 void udf_do_sync(struct udf_mount *ump, kauth_cred_t cred, int waitfor);
  97
  98 /* translation services */
  99 int udf_translate_vtop(struct udf_mount *ump, struct long_ad *icb_loc,
 100                 uint32_t *lb_numres, uint32_t *extres);
 101 void udf_translate_vtop_list(struct udf_mount *ump, uint32_t sectors,
 102                 uint16_t vpart_num, uint64_t *lmapping, uint64_t *pmapping);
 103 int udf_translate_file_extent(struct udf_node *node,
 104                 uint32_t from, uint32_t num_lb, uint64_t *map);
 105 void udf_get_adslot(struct udf_node *udf_node, int slot, struct long_ad *icb, int *eof);
 106 int udf_append_adslot(struct udf_node *udf_node, int *slot, struct long_ad *icb);
 107
 108 int udf_vat_read(struct udf_node *vat_node, uint8_t *blob, int size, uint32_t offset);
 109 int udf_vat_write(struct udf_node *vat_node, uint8_t *blob, int size, uint32_t offset);
 110
 111 /* disc allocation */
 112 int udf_get_c_type(struct udf_node *udf_node);
 113 int udf_get_record_vpart(struct udf_mount *ump, int udf_c_type);
 114 void udf_do_reserve_space(struct udf_mount *ump, struct udf_node *udf_node, uint16_t vpart_num, uint32_t num_lb);
 115 void udf_do_unreserve_space(struct udf_mount *ump, struct udf_node *udf_node, uint16_t vpart_num, uint32_t num_lb);
 116 int udf_reserve_space(struct udf_mount *ump, struct udf_node *udf_node, int udf_c_type, uint16_t vpart_num, uint32_t num_lb, int can_fail);
 117 void udf_cleanup_reservation(struct udf_node *udf_node);
 118 int udf_allocate_space(struct udf_mount *ump, struct udf_node *udf_node, int udf_c_type, uint16_t vpart_num, uint32_t num_lb, uint64_t *lmapping);
 119 void udf_free_allocated_space(struct udf_mount *ump, uint32_t lb_num, uint16_t vpart_num, uint32_t num_lb);
 120 void udf_late_allocate_buf(struct udf_mount *ump, struct buf *buf, uint64_t *lmapping, struct long_ad *node_ad_cpy, uint16_t *vpart_num);
 121 int udf_grow_node(struct udf_node *node, uint64_t new_size);
 122 int udf_shrink_node(struct udf_node *node, uint64_t new_size);
 123 void udf_calc_freespace(struct udf_mount *ump, uint64_t *sizeblks, uint64_t *freeblks);
 124
 125 /* node readers and writers */
 126 uint64_t udf_advance_uniqueid(struct udf_mount *ump);
 127
 128 #define UDF_LOCK_NODE(udf_node, flag) udf_lock_node(udf_node, (flag), __FILE__, __LINE__)
 129 #define UDF_UNLOCK_NODE(udf_node, flag) udf_unlock_node(udf_node, (flag))
 130 void udf_lock_node(struct udf_node *udf_node, int flag, char const *fname, const int lineno);
 131 void udf_unlock_node(struct udf_node *udf_node, int flag);
 132
 133 int udf_get_node(struct udf_mount *ump, struct long_ad *icbloc, struct udf_node **noderes);
 134 int udf_writeout_node(struct udf_node *udf_node, int waitfor);
 135 int udf_dispose_node(struct udf_node *node);
 136
 137 /* node ops */
 138 int udf_resize_node(struct udf_node *node, uint64_t new_size, int *extended);
 139 int udf_extattr_search_intern(struct udf_node *node, uint32_t sattr, char const *sattrname, uint32_t *offsetp, uint32_t *lengthp);
 140
 141 /* node data buffer read/write */
 142 void udf_read_filebuf(struct udf_node *node, struct buf *buf);
 143 void udf_write_filebuf(struct udf_node *node, struct buf *buf);
 144 void udf_fixup_fid_block(uint8_t *blob, int lb_size, int rfix_pos, int max_rfix_pos, uint32_t lb_num);
 145 void udf_fixup_internal_extattr(uint8_t *blob, uint32_t lb_num);
 146 void udf_fixup_node_internals(struct udf_mount *ump, uint8_t *blob, int udf_c_type);
 147
 148 /* device strategy */
 149 void udf_discstrat_init(struct udf_mount *ump);
 150 void udf_discstrat_finish(struct udf_mount *ump);
 151 void udf_discstrat_queuebuf(struct udf_mount *ump, struct buf *nestbuf);
 152
 153 /* structure writers */
 154 int udf_write_terminator(struct udf_mount *ump, uint32_t sector);
 155
 156 /* structure creators */
 157 void udf_inittag(struct udf_mount *ump, struct desc_tag *tag, int tagid, uint32_t sector);
 158 void udf_set_regid(struct regid *regid, char const *name);
 159 void udf_add_domain_regid(struct udf_mount *ump, struct regid *regid);
 160 void udf_add_udf_regid(struct udf_mount *ump, struct regid *regid);
 161 void udf_add_impl_regid(struct udf_mount *ump, struct regid *regid);
 162 void udf_add_app_regid(struct udf_mount *ump, struct regid *regid);
 163
 164 /* directory operations and helpers */
 165 void udf_osta_charset(struct charspec *charspec);
 166 int udf_read_fid_stream(struct vnode *vp, uint64_t *offset, struct fileid_desc *fid, struct dirent *dirent);
 167 int udf_lookup_name_in_dir(struct vnode *vp, const char *name, int namelen, struct long_ad *icb_loc, int *found);
 168 int udf_create_node(struct vnode *dvp, struct vnode **vpp, struct vattr *vap, struct componentname *cnp);
 169 void udf_delete_node(struct udf_node *udf_node);
 170
 171 int udf_chsize(struct vnode *vp, u_quad_t newsize, kauth_cred_t cred);
 172 int udf_dir_detach(struct udf_mount *ump, struct udf_node *dir_node, struct udf_node *udf_node, struct componentname *cnp);
 173 int udf_dir_attach(struct udf_mount *ump, struct udf_node *dir_node, struct udf_node *udf_node, struct vattr *vap, struct componentname *cnp);
 174 int udf_dir_update_rootentry(struct udf_mount *ump, struct udf_node *dir_node, struct udf_node *new_parent_node);
 175
 176 /* update and times */
 177 void udf_add_to_dirtylist(struct udf_node *udf_node);
 178 void udf_remove_from_dirtylist(struct udf_node *udf_node);
 179 void udf_itimes(struct udf_node *udf_node, struct timespec *acc,
 180         struct timespec *mod, struct timespec *birth);
 181 int  udf_update(struct vnode *node, struct timespec *acc,
 182         struct timespec *mod, struct timespec *birth, int updflags);
 183
 184 /* helpers and converters */
 185 void udf_init_nodes_tree(struct udf_mount *ump);
 186 long udf_get_node_id(const struct long_ad *icbptr);    /* for `inode' numbering */
 187 int udf_compare_icb(const struct long_ad *a, const struct long_ad *b);
 188 uint32_t udf_getaccessmode(struct udf_node *node);
 189 void udf_setaccessmode(struct udf_node *udf_node, mode_t mode);
 190 void udf_getownership(struct udf_node *udf_node, uid_t *uidp, gid_t *gidp);
 191 void udf_setownership(struct udf_node *udf_node, uid_t uid, gid_t gid);
 192
 193 void udf_to_unix_name(char *result, int result_len, char *id, int len, struct charspec *chsp);
 194 void unix_to_udf_name(char *result, uint8_t *result_len, char const *name, int name_len, struct charspec *chsp);
 195
 196 void udf_timestamp_to_timespec(struct udf_mount *ump, struct timestamp *timestamp, struct timespec *timespec);
 197 void udf_timespec_to_timestamp(struct timespec *timespec, struct timestamp *timestamp);
 198
 199 /* vnode operations */
 200 int udf_inactive(void *v);
 201 int udf_reclaim(void *v);
 202 int udf_readdir(void *v);
 203 int udf_getattr(void *v);
 204 int udf_setattr(void *v);
 205 int udf_pathconf(void *v);
 206 int udf_open(void *v);
 207 int udf_close(void *v);
 208 int udf_access(void *v);
 209 int udf_read(void *v);
 210 int udf_write(void *v);
 211 int udf_trivial_bmap(void *v);
 212 int udf_vfsstrategy(void *v);
 213 int udf_lookup(void *v);
 214 int udf_create(void *v);
 215 int udf_mknod(void *v);
 216 int udf_link(void *);
 217 int udf_symlink(void *v);
 218 int udf_readlink(void *v);
 219 int udf_rename(void *v);
 220 int udf_remove(void *v);
 221 int udf_mkdir(void *v);
 222 int udf_rmdir(void *v);
 223 int udf_fsync(void *v);
 224 int udf_advlock(void *v);
 225
 226 #endif  /* !_FS_UDF_UDF_SUBR_H_ */