a287d23dee
old somewhat naive selection scheme that didn't allow different allocation settings for nodes, directory information (FIDs) and data. Also fix some curious side-effects of atime updates on RMW devices.
213 lines
9.6 KiB
C
213 lines
9.6 KiB
C
/* $NetBSD: udf_subr.h,v 1.12 2008/08/06 13:41:12 reinoud Exp $ */
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/*
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* Copyright (c) 2006, 2008 Reinoud Zandijk
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef _FS_UDF_UDF_SUBR_H_
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#define _FS_UDF_UDF_SUBR_H_
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/* handies */
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#define VFSTOUDF(mp) ((struct udf_mount *)mp->mnt_data)
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/* device information updating */
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int udf_update_trackinfo(struct udf_mount *ump, struct mmc_trackinfo *trackinfo);
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int udf_update_discinfo(struct udf_mount *ump);
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int udf_search_tracks(struct udf_mount *ump, struct udf_args *args,
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int *first_tracknr, int *last_tracknr);
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int udf_search_writing_tracks(struct udf_mount *ump);
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int udf_setup_writeparams(struct udf_mount *ump);
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int udf_synchronise_caches(struct udf_mount *ump);
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/* tags operations */
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int udf_fidsize(struct fileid_desc *fid);
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int udf_check_tag(void *blob);
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int udf_check_tag_payload(void *blob, uint32_t max_length);
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void udf_validate_tag_sum(void *blob);
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void udf_validate_tag_and_crc_sums(void *blob);
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int udf_tagsize(union dscrptr *dscr, uint32_t udf_sector_size);
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/* read/write descriptors */
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int udf_read_phys_dscr(
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struct udf_mount *ump,
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uint32_t sector,
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struct malloc_type *mtype, /* where to allocate */
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union dscrptr **dstp); /* out */
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int udf_write_phys_dscr_sync(struct udf_mount *ump, struct udf_node *udf_node,
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int what, union dscrptr *dscr,
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uint32_t sector, uint32_t logsector);
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int udf_write_phys_dscr_async(struct udf_mount *ump, struct udf_node *udf_node,
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int what, union dscrptr *dscr,
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uint32_t sector, uint32_t logsector,
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void (*dscrwr_callback)(struct buf *));
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/* read/write node descriptors */
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int udf_create_logvol_dscr(struct udf_mount *ump, struct udf_node *udf_node,
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struct long_ad *icb, union dscrptr **dscrptr);
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void udf_free_logvol_dscr(struct udf_mount *ump, struct long_ad *icb_loc,
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void *dscr);
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int udf_read_logvol_dscr(struct udf_mount *ump, struct long_ad *icb,
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union dscrptr **dscrptr);
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int udf_write_logvol_dscr(struct udf_node *udf_node, union dscrptr *dscr,
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struct long_ad *icb, int waitfor);
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/* volume descriptors readers and checkers */
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int udf_read_anchors(struct udf_mount *ump);
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int udf_read_vds_space(struct udf_mount *ump);
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int udf_process_vds(struct udf_mount *ump);
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int udf_read_vds_tables(struct udf_mount *ump);
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int udf_read_rootdirs(struct udf_mount *ump);
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/* open/close and sync volumes */
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int udf_open_logvol(struct udf_mount *ump);
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int udf_close_logvol(struct udf_mount *ump, int mntflags);
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int udf_writeout_vat(struct udf_mount *ump);
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int udf_write_physical_partition_spacetables(struct udf_mount *ump, int waitfor);
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int udf_write_metadata_partition_spacetable(struct udf_mount *ump, int waitfor);
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void udf_do_sync(struct udf_mount *ump, kauth_cred_t cred, int waitfor);
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/* translation services */
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int udf_translate_vtop(struct udf_mount *ump, struct long_ad *icb_loc,
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uint32_t *lb_numres, uint32_t *extres);
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void udf_translate_vtop_list(struct udf_mount *ump, uint32_t sectors,
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uint16_t vpart_num, uint64_t *lmapping, uint64_t *pmapping);
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int udf_translate_file_extent(struct udf_node *node,
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uint32_t from, uint32_t num_lb, uint64_t *map);
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void udf_get_adslot(struct udf_node *udf_node, int slot, struct long_ad *icb, int *eof);
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int udf_append_adslot(struct udf_node *udf_node, int *slot, struct long_ad *icb);
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int udf_vat_read(struct udf_node *vat_node, uint8_t *blob, int size, uint32_t offset);
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int udf_vat_write(struct udf_node *vat_node, uint8_t *blob, int size, uint32_t offset);
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/* disc allocation */
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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);
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void udf_free_allocated_space(struct udf_mount *ump, uint32_t lb_num, uint16_t vpart_num, uint32_t num_lb);
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int udf_pre_allocate_space(struct udf_mount *ump, int udf_c_type, uint32_t num_lb, uint16_t vpartnr, uint64_t *lmapping);
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int udf_grow_node(struct udf_node *node, uint64_t new_size);
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int udf_shrink_node(struct udf_node *node, uint64_t new_size);
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/* node readers and writers */
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uint64_t udf_advance_uniqueid(struct udf_mount *ump);
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#define UDF_LOCK_NODE(udf_node, flag) udf_lock_node(udf_node, (flag), __FILE__, __LINE__)
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#define UDF_UNLOCK_NODE(udf_node, flag) udf_unlock_node(udf_node, (flag))
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void udf_lock_node(struct udf_node *udf_node, int flag, char const *fname, const int lineno);
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void udf_unlock_node(struct udf_node *udf_node, int flag);
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int udf_get_node(struct udf_mount *ump, struct long_ad *icbloc, struct udf_node **noderes);
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int udf_writeout_node(struct udf_node *udf_node, int waitfor);
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int udf_dispose_node(struct udf_node *node);
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/* node ops */
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int udf_resize_node(struct udf_node *node, uint64_t new_size, int *extended);
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int udf_extattr_search_intern(struct udf_node *node, uint32_t sattr, char const *sattrname, uint32_t *offsetp, uint32_t *lengthp);
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/* node data buffer read/write */
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void udf_read_filebuf(struct udf_node *node, struct buf *buf);
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void udf_write_filebuf(struct udf_node *node, struct buf *buf);
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void udf_fixup_fid_block(uint8_t *blob, int lb_size, int rfix_pos, int max_rfix_pos, uint32_t lb_num);
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void udf_fixup_internal_extattr(uint8_t *blob, uint32_t lb_num);
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void udf_fixup_node_internals(struct udf_mount *ump, uint8_t *blob, int udf_c_type);
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/* device strategy */
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void udf_discstrat_init(struct udf_mount *ump);
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void udf_discstrat_finish(struct udf_mount *ump);
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void udf_discstrat_queuebuf(struct udf_mount *ump, struct buf *nestbuf);
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/* structure writers */
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int udf_write_terminator(struct udf_mount *ump, uint32_t sector);
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/* structure creators */
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void udf_inittag(struct udf_mount *ump, struct desc_tag *tag, int tagid, uint32_t sector);
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void udf_set_regid(struct regid *regid, char const *name);
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void udf_add_domain_regid(struct udf_mount *ump, struct regid *regid);
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void udf_add_udf_regid(struct udf_mount *ump, struct regid *regid);
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void udf_add_impl_regid(struct udf_mount *ump, struct regid *regid);
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void udf_add_app_regid(struct udf_mount *ump, struct regid *regid);
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/* directory operations and helpers */
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void udf_osta_charset(struct charspec *charspec);
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int udf_read_fid_stream(struct vnode *vp, uint64_t *offset, struct fileid_desc *fid, struct dirent *dirent);
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int udf_lookup_name_in_dir(struct vnode *vp, const char *name, int namelen, struct long_ad *icb_loc, int *found);
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int udf_create_node(struct vnode *dvp, struct vnode **vpp, struct vattr *vap, struct componentname *cnp);
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void udf_delete_node(struct udf_node *udf_node);
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int udf_chsize(struct vnode *vp, u_quad_t newsize, kauth_cred_t cred);
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int udf_dir_detach(struct udf_mount *ump, struct udf_node *dir_node, struct udf_node *udf_node, struct componentname *cnp);
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int udf_dir_attach(struct udf_mount *ump, struct udf_node *dir_node, struct udf_node *udf_node, struct vattr *vap, struct componentname *cnp);
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/* update and times */
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void udf_add_to_dirtylist(struct udf_node *udf_node);
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void udf_remove_from_dirtylist(struct udf_node *udf_node);
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void udf_itimes(struct udf_node *udf_node, struct timespec *acc,
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struct timespec *mod, struct timespec *birth);
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int udf_update(struct vnode *node, struct timespec *acc,
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struct timespec *mod, struct timespec *birth, int updflags);
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/* helpers and converters */
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long udf_calchash(struct long_ad *icbptr); /* for `inode' numbering */
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uint32_t udf_getaccessmode(struct udf_node *node);
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void udf_setaccessmode(struct udf_node *udf_node, mode_t mode);
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void udf_getownership(struct udf_node *udf_node, uid_t *uidp, gid_t *gidp);
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void udf_setownership(struct udf_node *udf_node, uid_t uid, gid_t gid);
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void udf_to_unix_name(char *result, int result_len, char *id, int len, struct charspec *chsp);
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void unix_to_udf_name(char *result, uint8_t *result_len, char const *name, int name_len, struct charspec *chsp);
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void udf_timestamp_to_timespec(struct udf_mount *ump, struct timestamp *timestamp, struct timespec *timespec);
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void udf_timespec_to_timestamp(struct timespec *timespec, struct timestamp *timestamp);
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/* vnode operations */
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int udf_inactive(void *v);
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int udf_reclaim(void *v);
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int udf_readdir(void *v);
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int udf_getattr(void *v);
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int udf_setattr(void *v);
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int udf_pathconf(void *v);
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int udf_open(void *v);
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int udf_close(void *v);
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int udf_access(void *v);
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int udf_read(void *v);
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int udf_write(void *v);
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int udf_trivial_bmap(void *v);
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int udf_vfsstrategy(void *v);
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int udf_lookup(void *v);
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int udf_create(void *v);
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int udf_mknod(void *v);
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int udf_link(void *);
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int udf_symlink(void *v);
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int udf_readlink(void *v);
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int udf_rename(void *v);
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int udf_remove(void *v);
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int udf_mkdir(void *v);
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int udf_rmdir(void *v);
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int udf_fsync(void *v);
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int udf_advlock(void *v);
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#endif /* !_FS_UDF_UDF_SUBR_H_ */
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