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Add hooks for translating directories entries using the iconv methods.

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Submitted by: imura@ryu16.org
This commit is contained in:
Scott Long 2003-11-05 06:56:08 +00:00
parent c5a1bf1b20
commit 6565282c62
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=122102
5 changed files with 174 additions and 34 deletions
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4
sys/fs/udf/udf.h
View File

@ -58,6 +58,10 @@ struct udf_mnt {
int p_sectors;
int s_table_entries;
struct udf_sparing_table *s_table;
void *im_d2l; /* disk->local iconv handle */
#if 0
void *im_l2d; /* local->disk iconv handle */
#endif
};
struct udf_dirstream {

36
sys/fs/udf/udf_iconv.c Normal file
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@ -0,0 +1,36 @@
/*-
* Copyright (c) 2003 Ryuichiro Imura
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/iconv.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/mount.h>
VFS_DECLARE_ICONV(udf);

29
sys/fs/udf/udf_mount.h Normal file
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@ -0,0 +1,29 @@
/*-
* Copyright (c) 2003 Ryuichiro Imura
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#define UDFMNT_KICONV 0x00000001

47
sys/fs/udf/udf_vfsops.c
View File

@ -79,6 +79,7 @@
#include <sys/conf.h>
#include <sys/dirent.h>
#include <sys/fcntl.h>
#include <sys/iconv.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mount.h>
@ -90,12 +91,15 @@
#include <vm/uma.h>
#include <fs/udf/ecma167-udf.h>
#include <fs/udf/udf.h>
#include <fs/udf/osta.h>
#include <fs/udf/udf.h>
#include <fs/udf/udf_mount.h>
MALLOC_DEFINE(M_UDFMOUNT, "UDF mount", "UDF mount structure");
MALLOC_DEFINE(M_UDFFENTRY, "UDF fentry", "UDF file entry structure");
struct iconv_functions *udf_iconv = NULL;
/* Zones */
uma_zone_t udf_zone_trans = NULL;
uma_zone_t udf_zone_node = NULL;
@ -125,6 +129,8 @@ static struct vfsops udf_vfsops = {
};
VFS_SET(udf_vfsops, udf, VFCF_READONLY);
MODULE_VERSION(udf, 1);
static int udf_mountfs(struct vnode *, struct mount *, struct thread *);
static int
@ -183,9 +189,9 @@ udf_mount(struct mount *mp, struct nameidata *ndp, struct thread *td)
struct udf_mnt *imp = 0;
struct export_args *export;
struct vfsoptlist *opts;
char *fspec;
char *fspec, *cs_disk, *cs_local;
size_t size;
int error, len;
int error, len, *udf_flags;
opts = mp->mnt_optnew;
@ -246,6 +252,28 @@ udf_mount(struct mount *mp, struct nameidata *ndp, struct thread *td)
}
imp = VFSTOUDFFS(mp);
udf_flags = NULL;
error = vfs_getopt(opts, "flags", (void **)&udf_flags, &len);
if (error || len != sizeof(int))
return (EINVAL);
imp->im_flags = *udf_flags;
if (imp->im_flags & UDFMNT_KICONV && udf_iconv) {
cs_disk = NULL;
error = vfs_getopt(opts, "cs_disk", (void **)&cs_disk, &len);
if (!error && cs_disk[len - 1] != '\0')
return (EINVAL);
cs_local = NULL;
error = vfs_getopt(opts, "cs_local", (void **)&cs_local, &len);
if (!error && cs_local[len - 1] != '\0')
return (EINVAL);
udf_iconv->open(cs_local, cs_disk, &imp->im_d2l);
#if 0
udf_iconv->open(cs_disk, cs_local, &imp->im_l2d);
#endif
}
copystr(fspec, mp->mnt_stat.f_mntfromname, MNAMELEN - 1, &size);
bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
udf_statfs(mp, &mp->mnt_stat, td);
@ -326,6 +354,10 @@ udf_mountfs(struct vnode *devvp, struct mount *mp, struct thread *td) {
udfmp->im_mountp = mp;
udfmp->im_dev = devvp->v_rdev;
udfmp->im_devvp = devvp;
udfmp->im_d2l = NULL;
#if 0
udfmp->im_l2d = NULL;
#endif
bsize = 2048; /* XXX Should probe the media for it's size */
@ -471,6 +503,15 @@ udf_unmount(struct mount *mp, int mntflags, struct thread *td)
if ((error = vflush(mp, 0, flags)))
return (error);
if (udfmp->im_flags & UDFMNT_KICONV && udf_iconv) {
if (udfmp->im_d2l)
udf_iconv->close(udfmp->im_d2l);
#if 0
if (udfmp->im_l2d)
udf_iconv->close(udfmp->im_l2d);
#endif
}
udfmp->im_devvp->v_rdev->si_mountpoint = NULL;
error = VOP_CLOSE(udfmp->im_devvp, FREAD, NOCRED, td);
vrele(udfmp->im_devvp);

92
sys/fs/udf/udf_vnops.c
View File

@ -37,6 +37,7 @@
#include <sys/stat.h>
#include <sys/bio.h>
#include <sys/buf.h>
#include <sys/iconv.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/dirent.h>
@ -48,6 +49,9 @@
#include <fs/udf/ecma167-udf.h>
#include <fs/udf/osta.h>
#include <fs/udf/udf.h>
#include <fs/udf/udf_mount.h>
extern struct iconv_functions *udf_iconv;
static int udf_access(struct vop_access_args *);
static int udf_getattr(struct vop_getattr_args *);
@ -446,41 +450,65 @@ udf_dumpblock(void *data, int len)
/*
* Call the OSTA routines to translate the name from a CS0 dstring to a
* 16-bit Unicode String. Hooks need to be placed in here to translate from
* Unicode to the encoding that the kernel/user expects. For now, compact
* the encoding to 8 bits if possible. Return the length of the translated
* string.
* XXX This horribly pessimizes the 8bit case
* Unicode to the encoding that the kernel/user expects. Return the length
* of the translated string.
*/
static int
udf_transname(char *cs0string, char *destname, int len)
udf_transname(char *cs0string, char *destname, int len, struct udf_mnt *udfmp)
{
unicode_t *transname;
int i, unilen = 0;
char *unibuf, *unip;
int i, unilen = 0, destlen;
size_t destleft = MAXNAMLEN;
/* allocate a buffer big enough to hold an 8->16 bit expansion */
transname = uma_zalloc(udf_zone_trans, M_WAITOK);
if ((unilen = udf_UncompressUnicode(len, cs0string, transname)) == -1) {
printf("udf: Unicode translation failed\n");
uma_zfree(udf_zone_trans, transname);
return 0;
}
/* At this point, the name is in 16-bit Unicode. Compact it down
* to 8-bit
*/
for (i = 0; i < unilen ; i++) {
if (transname[i] & 0xff00) {
destname[i] = '.'; /* Fudge the 16bit chars */
} else {
destname[i] = transname[i] & 0xff;
/* Convert 16-bit Unicode to destname */
if (udfmp->im_flags & UDFMNT_KICONV && udf_iconv) {
/* allocate a buffer big enough to hold an 8->16 bit expansion */
unibuf = uma_zalloc(udf_zone_trans, M_WAITOK);
unip = unibuf;
if ((unilen = udf_UncompressUnicodeByte(len, cs0string, unibuf)) == -1) {
printf("udf: Unicode translation failed\n");
uma_zfree(udf_zone_trans, unibuf);
return 0;
}
while (unilen > 0 && destleft > 0) {
udf_iconv->conv(udfmp->im_d2l, (const char **)&unibuf,
(size_t *)&unilen, (char **)&destname, &destleft);
/* Unconverted character found */
if (unilen > 0 && destleft > 0) {
*destname++ = '?';
destleft--;
unibuf += 2;
unilen -= 2;
}
}
uma_zfree(udf_zone_trans, unip);
*destname = '\0';
destlen = MAXNAMLEN - (int)destleft;
} else {
/* allocate a buffer big enough to hold an 8->16 bit expansion */
transname = uma_zalloc(udf_zone_trans, M_WAITOK);
if ((unilen = udf_UncompressUnicode(len, cs0string, transname)) == -1) {
printf("udf: Unicode translation failed\n");
uma_zfree(udf_zone_trans, transname);
return 0;
}
for (i = 0; i < unilen ; i++) {
if (transname[i] & 0xff00) {
destname[i] = '.'; /* Fudge the 16bit chars */
} else {
destname[i] = transname[i] & 0xff;
}
}
uma_zfree(udf_zone_trans, transname);
destname[unilen] = 0;
destlen = unilen;
}
destname[unilen] = 0;
uma_zfree(udf_zone_trans, transname);
return unilen;
return (destlen);
}
/*
@ -489,7 +517,7 @@ udf_transname(char *cs0string, char *destname, int len)
* here also.
*/
static int
udf_cmpname(char *cs0string, char *cmpname, int cs0len, int cmplen)
udf_cmpname(char *cs0string, char *cmpname, int cs0len, int cmplen, struct udf_mnt *udfmp)
{
char *transname;
int error = 0;
@ -497,7 +525,7 @@ udf_cmpname(char *cs0string, char *cmpname, int cs0len, int cmplen)
/* This is overkill, but not worth creating a new zone */
transname = uma_zalloc(udf_zone_trans, M_WAITOK);
cs0len = udf_transname(cs0string, transname, cs0len);
cs0len = udf_transname(cs0string, transname, cs0len, udfmp);
/* Easy check. If they aren't the same length, they aren't equal */
if ((cs0len == 0) || (cs0len != cmplen))
@ -686,6 +714,7 @@ udf_readdir(struct vop_readdir_args *a)
struct uio *uio;
struct dirent dir;
struct udf_node *node;
struct udf_mnt *udfmp;
struct fileid_desc *fid;
struct udf_uiodir uiodir;
struct udf_dirstream *ds;
@ -696,6 +725,7 @@ udf_readdir(struct vop_readdir_args *a)
vp = a->a_vp;
uio = a->a_uio;
node = VTON(vp);
udfmp = node->udfmp;
uiodir.eofflag = 1;
if (a->a_ncookies != NULL) {
@ -762,7 +792,7 @@ udf_readdir(struct vop_readdir_args *a)
error = udf_uiodir(&uiodir, dir.d_reclen, uio, 2);
} else {
dir.d_namlen = udf_transname(&fid->data[fid->l_iu],
&dir.d_name[0], fid->l_fi);
&dir.d_name[0], fid->l_fi, udfmp);
dir.d_fileno = udf_getid(&fid->icb);
dir.d_type = (fid->file_char & UDF_FILE_CHAR_DIR) ?
DT_DIR : DT_UNKNOWN;
@ -946,7 +976,7 @@ udf_lookup(struct vop_cachedlookup_args *a)
}
} else {
if (!(udf_cmpname(&fid->data[fid->l_iu],
nameptr, fid->l_fi, namelen))) {
nameptr, fid->l_fi, namelen, udfmp))) {
id = udf_getid(&fid->icb);
break;
}