143 lines
5.6 KiB
C
143 lines
5.6 KiB
C
/* nwvolume.h 09-Oct-99 */
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/* (C)opyright (C) 1993-1999 Martin Stover, Marburg, Germany
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _NWVOLUME_H_
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#define _NWVOLUME_H_
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#define MAX_DEV_NAMESPACE_MAPS 16
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typedef struct {
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int dev;
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int namespace;
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} DEV_NAMESPACE_MAP;
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/*
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* This is inserted for namespace calls, to can map an
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* volume->dev->inode->namespace to an uint32 basehandle
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* without loosing too many places.
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*/
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typedef struct {
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uint8 *path;
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uint8 len;
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int trustee;
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} VOLUME_TRUSTEE;
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typedef struct {
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uint8 *sysname; /* VOL_NAME */
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uint8 *unixname; /* UNIX-DIR with ending '/' */
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int unixnamlen; /* len of unixname */
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/* next 2 fields added by Andrew Sapozhnikov */
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/* for Extend "Volume is home" feature */
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int dev; /* dev and inode of volume root */
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int inode;
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uint8 *homeaddon; /* tail for $HOME-relative volumes */
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int addonlen; /* len of tail part of unixname */
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DEV_NAMESPACE_MAP *dev_namespace_maps[MAX_DEV_NAMESPACE_MAPS];
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int max_maps_count; /* may be less than MAX_DEV_NAMESPACE_MAPS */
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int maps_count; /* count of dev_namespace_maps */
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uint32 high_inode; /* hight inode to can handle correct */
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int options; /* see defines below */
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uint8 *os2buf; /* special stuff for os2 namspace */
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int umode_dir; /* umask/umode for creating dirs */
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int umode_file; /* umask/umode for creating files */
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/* Trustee handling */
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VOLUME_TRUSTEE *trustees;
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int max_alloc_trustees;
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int count_trustees;
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uint32 trustee_id; /* id of last searched vol trustees */
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int trustee_namespace;
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unsigned int trustee_sernum;
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time_t trustee_last_test_time; /* when did we test trustee sernum */
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} NW_VOL;
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/* vol options */
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#define VOL_OPTION_DOWNSHIFT 0x0001 /* downshift */
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#define VOL_OPTION_IS_PIPE 0x0002 /* Volume contains pipes */
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#define VOL_OPTION_REMOUNT 0x0004 /* Volume can be remounted (cdroms) */
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#define VOL_OPTION_IS_HOME 0x0008 /* Volume is USERS HOME */
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#define VOL_OPTION_ONE_DEV 0x0010 /* Volume has only one filesys */
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#define VOL_OPTION_READONLY 0x0020 /* Volume is readonly */
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#define VOL_OPTION_IGNCASE 0x0040 /* Do ignore up/downshift */
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#define VOL_OPTION_NO_INODES 0x0080 /* Volume do not have fixed inodes */
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#define VOL_OPTION_TRUSTEES 0x0100 /* Volume use Trustees */
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#define VOL_OPTION_ATTRIBUTES 0x0200 /* Volume use 'real' Attributes */
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#define VOL_OPTION_IGNUNXRIGHT 0x0400 /* Ignore rights granted in UN*X FS */
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#define VOL_OPTION_UNX_RIGHT 0x0800 /* Use UN*X real rights */
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/* namespaces */
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#define VOL_NAMESPACE_DOS 0x1000
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#define VOL_NAMESPACE_OS2 0x2000
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#define VOL_NAMESPACE_NFS 0x4000
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/* stolen from GNU-fileutils */
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/* Space usage statistics for a filesystem. Blocks are 512-byte. */
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struct fs_usage {
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long fsu_blocks; /* Total blocks. */
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long fsu_bfree; /* Free blocks available to superuser. */
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long fsu_bavail; /* Free blocks available to non-superuser. */
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long fsu_files; /* Total file nodes. */
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long fsu_ffree; /* Free file nodes. */
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};
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extern NW_VOL *nw_volumes;
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extern int used_nw_volumes;
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extern int loaded_namespaces;
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extern uint8 *home_dir;
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extern int home_dir_len;
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extern char *path_vol_inodes_cache; /* for namespace routines */
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extern char *path_attributes; /* for attribute handling */
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extern char *path_trustees; /* for trustee handling */
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extern void nw_init_volumes(FILE *f);
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extern void nw_setup_vol_opts(int act_gid, int act_uid,
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int act_umode_dir, int act_umode_file,
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uint8 *unxlogin);
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extern int nw_get_volume_number(uint8 *volname, int namelen);
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extern int nw_get_volume_name(int volnr, uint8 *volname, int size_volname);
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extern int get_volume_umode_dir(int volnr);
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extern int get_volume_umode_file(int volnr);
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extern int nw_get_fs_usage(uint8 *volname, struct fs_usage *fsu, int limit);
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extern int get_volume_options(int volnr);
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extern int get_volume_inode(int volnr, struct stat *stb);
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extern int get_volume_unixnamlen(int volnr);
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extern int nw_set_vol_restrictions(uint8 volnr, int uid, uint32 quota);
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extern int nw_get_vol_restrictions(uint8 volnr, int uid, uint32 *quota, uint32 *inuse);
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extern uint32 nw_vol_inode_to_handle(int volume, ino_t inode,
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DEV_NAMESPACE_MAP *dnm);
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extern ino_t nw_vol_handle_to_inode(int volume, uint32 handle,
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DEV_NAMESPACE_MAP *dnm);
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extern int vol_trustees_were_changed(int volume);
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extern int get_volume_user_trustee(int volume, uint32 id,
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int namespace,
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int *sequence,
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int *trustee, uint8 *path);
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#endif
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