Makefile | 1
linux-2.6/xfs_iops.c | 89 ++++++++
linux-2.6/xfs_linux.h | 2
linux-2.6/xfs_super.c | 8
xfs_clnt.h | 5
xfs_da_btree.c | 20 +
xfs_da_btree.h | 21 +
xfs_dir2.c | 177 +++++++++++++---
xfs_dir2.h | 9
xfs_dir2_block.c | 30 +-
xfs_dir2_data.c | 3
xfs_dir2_leaf.c | 19 +
xfs_dir2_node.c | 5
xfs_dir2_sf.c | 35 ++-
xfs_mount.c | 25 ++
xfs_mount.h | 8
xfs_sb.h | 33 ++-
xfs_unicode.c | 547
++++++++++++++++++++++++++++++++++++++++++++++++++
xfs_unicode.h | 75 ++++++
xfs_vfsops.c | 53 ++++
20 files changed, 1100 insertions(+), 65 deletions(-)
===========================================================================
fs/xfs/Makefile
===========================================================================
--- a/fs/xfs/Makefile 2007-10-23 17:19:40.000000000 +1000
+++ b/fs/xfs/Makefile 2007-10-23 16:17:22.173903950 +1000
@@ -74,6 +74,7 @@ xfs-y += xfs_alloc.o \
xfs_trans_extfree.o \
xfs_trans_inode.o \
xfs_trans_item.o \
+ xfs_unicode.o \
xfs_utils.o \
xfs_vfsops.o \
xfs_vnodeops.o \
===========================================================================
fs/xfs/linux-2.6/xfs_iops.c
===========================================================================
--- a/fs/xfs/linux-2.6/xfs_iops.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/linux-2.6/xfs_iops.c 2007-10-23 16:43:19.828562924 +1000
@@ -47,12 +47,17 @@
#include "xfs_buf_item.h"
#include "xfs_utils.h"
#include "xfs_vnodeops.h"
+#include "xfs_da_btree.h"
+#include "xfs_unicode.h"
#include <linux/capability.h>
#include <linux/xattr.h>
#include <linux/namei.h>
#include <linux/security.h>
+struct dentry_operations xfs_dentry_operations;
+struct dentry_operations xfs_nls_dentry_operations;
+
/*
* Bring the atime in the XFS inode uptodate.
* Used before logging the inode to disk or when the Linux inode goes
away.
@@ -369,10 +374,17 @@ xfs_vn_lookup(
{
bhv_vnode_t *cvp;
int error;
+ struct xfs_mount *mp = XFS_I(dir)->i_mount;
+ struct dentry *result;
if (dentry->d_name.len >= MAXNAMELEN)
return ERR_PTR(-ENAMETOOLONG);
+ if (xfs_sb_version_hasunicode(&mp->m_sb) ||
+ xfs_sb_version_hasoldci(&mp->m_sb))
+ dentry->d_op = mp->m_nls ? &xfs_nls_dentry_operations :
+ &xfs_dentry_operations;
+
error = xfs_lookup(XFS_I(dir), dentry, &cvp);
if (unlikely(error)) {
if (unlikely(error != ENOENT))
@@ -381,7 +393,11 @@ xfs_vn_lookup(
return NULL;
}
- return d_splice_alias(vn_to_inode(cvp), dentry);
+ result = d_splice_alias(vn_to_inode(cvp), dentry);
+ if (result)
+ result->d_op = dentry->d_op;
+
+ return result;
}
STATIC int
@@ -823,3 +839,74 @@ const struct inode_operations xfs_symlin
.listxattr = xfs_vn_listxattr,
.removexattr = xfs_vn_removexattr,
};
+
+
+STATIC int
+xfs_dentry_hash(
+ struct dentry *dir,
+ struct qstr *this)
+{
+ this->hash = xfs_dir_hashname(XFS_I(dir->d_inode),
+ this->name, this->len);
+ return 0;
+}
+
+STATIC int
+xfs_dentry_compare(
+ struct dentry *dir,
+ struct qstr *a,
+ struct qstr *b)
+{
+ int result = xfs_dir_compname(XFS_I(dir->d_inode), a->name, a->len,
+ b->name, b->len);
+ if (result == 0) {
+ if (a->len == b->len)
+ memcpy((unsigned char *)a->name, b->name, a->len);
+ else {
+ /* TODO: more complicated when name lengths differ */
+ }
+ }
+ return result;
+}
+
+STATIC int
+xfs_nls_dentry_hash(
+ struct dentry *dir,
+ struct qstr *this)
+{
+ xfs_mount_t *mp = XFS_I(dir->d_inode)->i_mount;
+
+ this->hash = xfs_nls_hash(mp->m_nls, mp->m_cft, this->name, this->len);
+ return 0;
+}
+
+STATIC int
+xfs_nls_dentry_compare(
+ struct dentry *dir,
+ struct qstr *a,
+ struct qstr *b)
+{
+ xfs_mount_t *mp = XFS_I(dir->d_inode)->i_mount;
+ int result = xfs_nls_casecmp(mp->m_nls, mp->m_cft,
+ a->name, a->len, b->name, b->len);
+ if (result == 0) {
+ if (a->len == b->len)
+ memcpy((unsigned char *)a->name, b->name, a->len);
+ else {
+ /* TODO: more complicated when name lengths differ */
+ }
+ }
+ return result;
+}
+
+struct dentry_operations xfs_dentry_operations =
+{
+ .d_hash = xfs_dentry_hash,
+ .d_compare = xfs_dentry_compare,
+};
+
+struct dentry_operations xfs_nls_dentry_operations =
+{
+ .d_hash = xfs_nls_dentry_hash,
+ .d_compare = xfs_nls_dentry_compare,
+};
===========================================================================
fs/xfs/linux-2.6/xfs_linux.h
===========================================================================
--- a/fs/xfs/linux-2.6/xfs_linux.h 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/linux-2.6/xfs_linux.h 2007-10-10 15:16:26.698563845 +1000
@@ -75,6 +75,8 @@
#include <linux/delay.h>
#include <linux/log2.h>
#include <linux/spinlock.h>
+#include <linux/ctype.h>
+#include <linux/nls.h>
#include <asm/page.h>
#include <asm/div64.h>
===========================================================================
fs/xfs/linux-2.6/xfs_super.c
===========================================================================
--- a/fs/xfs/linux-2.6/xfs_super.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/linux-2.6/xfs_super.c 2007-10-23 16:43:46.017187812 +1000
@@ -50,6 +50,7 @@
#include "xfs_vnodeops.h"
#include "xfs_vfsops.h"
#include "xfs_version.h"
+#include "xfs_unicode.h"
#include <linux/namei.h>
#include <linux/init.h>
@@ -65,6 +66,9 @@ static kmem_zone_t *xfs_vnode_zone;
static kmem_zone_t *xfs_ioend_zone;
mempool_t *xfs_ioend_pool;
+extern struct dentry_operations xfs_dentry_operations;
+extern struct dentry_operations xfs_nls_dentry_operations;
+
STATIC struct xfs_mount_args *
xfs_args_allocate(
struct super_block *sb,
@@ -871,6 +875,10 @@ xfs_fs_fill_super(
error = EINVAL;
goto fail_vnrele;
}
+ if (xfs_sb_version_hasunicode(&mp->m_sb) ||
+ xfs_sb_version_hasoldci(&mp->m_sb))
+ sb->s_root->d_op = mp->m_nls ? &xfs_nls_dentry_operations :
+ &xfs_dentry_operations;
mp->m_sync_work.w_syncer = xfs_sync_worker;
mp->m_sync_work.w_mount = mp;
===========================================================================
fs/xfs/xfs_clnt.h
===========================================================================
--- a/fs/xfs/xfs_clnt.h 2007-10-23 17:19:40.000000000 +1000
+++ b/fs/xfs/xfs_clnt.h 2007-10-12 17:07:03.022094920 +1000
@@ -48,6 +48,7 @@ struct xfs_mount_args {
char rtname[MAXNAMELEN+1]; /* realtime device filename */
char logname[MAXNAMELEN+1]; /* journal device filename */
char mtpt[MAXNAMELEN+1]; /* filesystem mount point */
+ char nls[MAXNAMELEN+1]; /* NLS code page to use */
int sunit; /* stripe unit (BBs) */
int swidth; /* stripe width (BBs), multiple of sunit */
uchar_t iosizelog; /* log2 of the preferred I/O size */
@@ -100,5 +101,9 @@ struct xfs_mount_args {
* I/O size in stat(2) */
#define XFSMNT2_FILESTREAMS 0x00000002 /* enable the filestreams
* allocator */
+#define XFSMNT2_CILOOKUP 0x00000004 /* enable case-insensitive
+ * filename lookup */
+#define XFSMNT2_CIATTR 0x00000008 /* enable case-insensitive
+ * extended attrs */
#endif /* __XFS_CLNT_H__ */
===========================================================================
fs/xfs/xfs_da_btree.c
===========================================================================
--- a/fs/xfs/xfs_da_btree.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_da_btree.c 2007-10-22 17:09:31.333665254 +1000
@@ -1530,6 +1530,26 @@ xfs_da_hashname(const uchar_t *name, int
}
}
+
+xfs_dahash_t
+xfs_default_hashname(xfs_inode_t *inode, const uchar_t *name, int namelen)
+{
+ return xfs_da_hashname(name, namelen);
+}
+
+int
+xfs_default_compname(xfs_inode_t *inode, const uchar_t *name1, int len1,
+ const uchar_t *name2, int len2)
+{
+ return (len1 == len2) ? memcmp(name1, name2, len1) :
+ (len1 < len2) ? -1 : 1;
+}
+
+const struct xfs_nameops xfs_default_nameops = {
+ .hashname = xfs_default_hashname,
+ .compname = xfs_default_compname
+};
+
/*
* Add a block to the btree ahead of the file.
* Return the new block number to the caller.
===========================================================================
fs/xfs/xfs_da_btree.h
===========================================================================
--- a/fs/xfs/xfs_da_btree.h 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_da_btree.h 2007-10-23 16:19:40.083993281 +1000
@@ -208,6 +208,27 @@ typedef struct xfs_da_state {
*========================================================================*/
/*
+ * Name ops for directory and/or attr name operations
+ */
+
+typedef xfs_dahash_t (*xfs_hashname_t)(struct xfs_inode *,
+ const uchar_t *, int);
+typedef int (*xfs_compname_t)(struct xfs_inode *, const uchar_t *, int,
+ const uchar_t *, int);
+
+typedef struct xfs_nameops {
+ xfs_hashname_t hashname;
+ xfs_compname_t compname;
+} xfs_nameops_t;
+
+extern const struct xfs_nameops xfs_default_nameops;
+
+xfs_dahash_t xfs_default_hashname(struct xfs_inode *inode, const uchar_t
*name,
+ int namelen);
+int xfs_default_compname(struct xfs_inode *inode, const uchar_t *name1,
+ int len1, const uchar_t *name2, int len2);
+
+/*
* Routines used for growing the Btree.
*/
int xfs_da_node_create(xfs_da_args_t *args, xfs_dablk_t blkno, int level,
===========================================================================
fs/xfs/xfs_dir2.c
===========================================================================
--- a/fs/xfs/xfs_dir2.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_dir2.c 2007-10-23 16:42:40.857585216 +1000
@@ -42,9 +42,71 @@
#include "xfs_dir2_node.h"
#include "xfs_dir2_trace.h"
#include "xfs_error.h"
+#include "xfs_unicode.h"
+static xfs_dahash_t
+xfs_ascii_ci_hashname(
+ xfs_inode_t *inode,
+ const uchar_t *name,
+ int namelen)
+{
+ xfs_dahash_t hash;
+ int i;
+
+ for (i = 0, hash = 0; i < namelen; i++)
+ hash = tolower(name[i]) ^ rol32(hash, 7);
+
+ return hash;
+}
+
+static int
+xfs_ascii_ci_compname(
+ xfs_inode_t *inode,
+ const uchar_t *name1,
+ int len1,
+ const uchar_t *name2,
+ int len2)
+{
+ return (len1 == len2) ? strncasecmp(name1, name2, len1) : len1 - len2;
+}
+
+static xfs_dahash_t
+xfs_unicode_ci_hashname(
+ xfs_inode_t *inode,
+ const uchar_t *name,
+ int namelen)
+{
+ return xfs_unicode_hash(inode->i_mount->m_cft, name, namelen);
+}
-void
+static int
+xfs_unicode_ci_compname(
+ xfs_inode_t *inode,
+ const uchar_t *name1,
+ int len1,
+ const uchar_t *name2,
+ int len2)
+{
+ return xfs_unicode_casecmp(inode->i_mount->m_cft,
+ name1, len1, name2, len2);
+}
+
+static const struct xfs_nameops xfs_ascii_ci_nameops = {
+ .hashname = xfs_ascii_ci_hashname,
+ .compname = xfs_ascii_ci_compname,
+};
+
+static const struct xfs_nameops xfs_unicode_nameops = {
+ .hashname = xfs_unicode_ci_hashname,
+ .compname = xfs_default_compname,
+};
+
+static const struct xfs_nameops xfs_unicode_ci_nameops = {
+ .hashname = xfs_unicode_ci_hashname,
+ .compname = xfs_unicode_ci_compname,
+};
+
+int
xfs_dir_mount(
xfs_mount_t *mp)
{
@@ -63,6 +125,15 @@ xfs_dir_mount(
(mp->m_dirblksize - (uint)sizeof(xfs_da_node_hdr_t)) /
(uint)sizeof(xfs_da_node_entry_t);
mp->m_dir_magicpct = (mp->m_dirblksize * 37) / 100;
+
+ if (xfs_sb_version_hasunicode(&mp->m_sb)) {
+ mp->m_dirnameops = (mp->m_flags & XFS_MOUNT_CI_LOOKUP) ?
+ &xfs_unicode_ci_nameops : &xfs_unicode_nameops;
+ } else
+ mp->m_dirnameops = (xfs_sb_version_hasoldci(&mp->m_sb)) ?
+ &xfs_ascii_ci_nameops : &xfs_default_nameops;
+
+ return 0;
}
/*
@@ -139,6 +210,50 @@ xfs_dir_init(
}
/*
+ * Set up the args with appropriate name and hash value
+ */
+
+static int
+xfs_dir_setup_name_and_hash(
+ xfs_da_args_t *args,
+ const char *name,
+ int namelen)
+{
+ char *uname;
+
+ if (args->dp->i_mount->m_nls) {
+ uname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
+ args->namelen = xfs_nls_to_unicode(args->dp->i_mount->m_nls,
+ name, namelen, uname, MAXNAMELEN);
+ if (args->namelen < 0) {
+ kmem_free(uname, MAXNAMELEN);
+ return -args->namelen;
+ }
+ args->name = uname;
+ } else {
+ if (xfs_sb_version_hasunicode(&args->dp->i_mount->m_sb)) {
+ int rval;
+ rval = xfs_unicode_validate(name, namelen);
+ if (rval < 0)
+ return -rval;
+ }
+ args->name = name;
+ args->namelen = namelen;
+ }
+ args->hashval = xfs_dir_hashname(args->dp, args->name, args->namelen);
+ return 0;
+}
+
+static inline void
+xfs_dir_cleanup_name(
+ xfs_da_args_t *args,
+ const uchar_t *name)
+{
+ if (args->name != name)
+ kmem_free((void *)args->name, MAXNAMELEN);
+}
+
+/*
Enter a name in a directory.
*/
int
@@ -161,9 +276,6 @@ xfs_dir_createname(
return rval;
XFS_STATS_INC(xs_dir_create);
- args.name = name;
- args.namelen = namelen;
- args.hashval = xfs_da_hashname(name, namelen);
args.inumber = inum;
args.dp = dp;
args.firstblock = first;
@@ -173,19 +285,24 @@ xfs_dir_createname(
args.trans = tp;
args.justcheck = 0;
args.addname = args.oknoent = 1;
+ rval = xfs_dir_setup_name_and_hash(&args, name, namelen);
+ if (rval)
+ return rval;
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
rval = xfs_dir2_sf_addname(&args);
else if ((rval = xfs_dir2_isblock(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_block_addname(&args);
else if ((rval = xfs_dir2_isleaf(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_leaf_addname(&args);
else
rval = xfs_dir2_node_addname(&args);
+out:
+ xfs_dir_cleanup_name(&args, name);
return rval;
}
@@ -207,9 +324,6 @@ xfs_dir_lookup(
ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
XFS_STATS_INC(xs_dir_lookup);
- args.name = name;
- args.namelen = namelen;
- args.hashval = xfs_da_hashname(name, namelen);
args.inumber = 0;
args.dp = dp;
args.firstblock = NULL;
@@ -219,15 +333,18 @@ xfs_dir_lookup(
args.trans = tp;
args.justcheck = args.addname = 0;
args.oknoent = 1;
+ rval = xfs_dir_setup_name_and_hash(&args, name, namelen);
+ if (rval)
+ return rval;
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
rval = xfs_dir2_sf_lookup(&args);
else if ((rval = xfs_dir2_isblock(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_block_lookup(&args);
else if ((rval = xfs_dir2_isleaf(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_leaf_lookup(&args);
else
@@ -236,6 +353,8 @@ xfs_dir_lookup(
rval = 0;
if (rval == 0)
*inum = args.inumber;
+out:
+ xfs_dir_cleanup_name(&args, name);
return rval;
}
@@ -260,9 +379,6 @@ xfs_dir_removename(
ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
XFS_STATS_INC(xs_dir_remove);
- args.name = name;
- args.namelen = namelen;
- args.hashval = xfs_da_hashname(name, namelen);
args.inumber = ino;
args.dp = dp;
args.firstblock = first;
@@ -271,19 +387,24 @@ xfs_dir_removename(
args.whichfork = XFS_DATA_FORK;
args.trans = tp;
args.justcheck = args.addname = args.oknoent = 0;
+ rval = xfs_dir_setup_name_and_hash(&args, name, namelen);
+ if (rval)
+ return rval;
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
rval = xfs_dir2_sf_removename(&args);
else if ((rval = xfs_dir2_isblock(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_block_removename(&args);
else if ((rval = xfs_dir2_isleaf(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_leaf_removename(&args);
else
rval = xfs_dir2_node_removename(&args);
+out:
+ xfs_dir_cleanup_name(&args, name);
return rval;
}
@@ -344,9 +465,6 @@ xfs_dir_replace(
if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum)))
return rval;
- args.name = name;
- args.namelen = namelen;
- args.hashval = xfs_da_hashname(name, namelen);
args.inumber = inum;
args.dp = dp;
args.firstblock = first;
@@ -355,19 +473,24 @@ xfs_dir_replace(
args.whichfork = XFS_DATA_FORK;
args.trans = tp;
args.justcheck = args.addname = args.oknoent = 0;
+ rval = xfs_dir_setup_name_and_hash(&args, name, namelen);
+ if (rval)
+ return rval;
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
rval = xfs_dir2_sf_replace(&args);
else if ((rval = xfs_dir2_isblock(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_block_replace(&args);
else if ((rval = xfs_dir2_isleaf(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_leaf_replace(&args);
else
rval = xfs_dir2_node_replace(&args);
+out:
+ xfs_dir_cleanup_name(&args, name);
return rval;
}
@@ -387,9 +510,6 @@ xfs_dir_canenter(
ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
- args.name = name;
- args.namelen = namelen;
- args.hashval = xfs_da_hashname(name, namelen);
args.inumber = 0;
args.dp = dp;
args.firstblock = NULL;
@@ -398,19 +518,24 @@ xfs_dir_canenter(
args.whichfork = XFS_DATA_FORK;
args.trans = tp;
args.justcheck = args.addname = args.oknoent = 1;
+ rval = xfs_dir_setup_name_and_hash(&args, name, namelen);
+ if (rval)
+ return rval;
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
rval = xfs_dir2_sf_addname(&args);
else if ((rval = xfs_dir2_isblock(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_block_addname(&args);
else if ((rval = xfs_dir2_isleaf(tp, dp, &v)))
- return rval;
+ goto out;
else if (v)
rval = xfs_dir2_leaf_addname(&args);
else
rval = xfs_dir2_node_addname(&args);
+out:
+ xfs_dir_cleanup_name(&args, name);
return rval;
}
===========================================================================
fs/xfs/xfs_dir2.h
===========================================================================
--- a/fs/xfs/xfs_dir2.h 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_dir2.h 2007-10-22 17:32:23.984399805 +1000
@@ -63,7 +63,7 @@ typedef xfs_off_t xfs_dir2_off_t;
* Generic directory interface routines
*/
extern void xfs_dir_startup(void);
-extern void xfs_dir_mount(struct xfs_mount *mp);
+extern int xfs_dir_mount(struct xfs_mount *mp);
extern int xfs_dir_isempty(struct xfs_inode *dp);
extern int xfs_dir_init(struct xfs_trans *tp, struct xfs_inode *dp,
struct xfs_inode *pdp);
@@ -85,6 +85,13 @@ extern int xfs_dir_canenter(struct xfs_t
char *name, int namelen);
extern int xfs_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
+#define xfs_dir_hashname(dp, n, l) \
+ ((dp)->i_mount->m_dirnameops->hashname((dp), (n), (l)))
+
+#define xfs_dir_compname(dp, n1, l1, n2, l2) \
+ ((dp)->i_mount->m_dirnameops->compname((dp), (n1), (l1), \
+ (n2), (l2)))
+
/*
* Utility routines for v2 directories.
*/
===========================================================================
fs/xfs/xfs_dir2_block.c
===========================================================================
--- a/fs/xfs/xfs_dir2_block.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_dir2_block.c 2007-10-15 16:57:13.164123893 +1000
@@ -38,6 +38,7 @@
#include "xfs_dir2_block.h"
#include "xfs_dir2_trace.h"
#include "xfs_error.h"
+#include "xfs_unicode.h"
/*
* Local function prototypes.
@@ -450,6 +451,8 @@ xfs_dir2_block_getdents(
int wantoff; /* starting block offset */
xfs_ino_t ino;
xfs_off_t cook;
+ char *nls_name = NULL; /* NLS name buffer */
+ int nls_namelen = 0;
mp = dp->i_mount;
/*
@@ -481,6 +484,9 @@ xfs_dir2_block_getdents(
ptr = (char *)block->u;
endptr = (char *)xfs_dir2_block_leaf_p(btp);
+ if (mp->m_nls)
+ nls_name = kmem_alloc(MAXNAMELEN, KM_SLEEP);
+
/*
* Loop over the data portion of the block.
* Each object is a real entry (dep) or an unused one (dup).
@@ -513,17 +519,21 @@ xfs_dir2_block_getdents(
#if XFS_BIG_INUMS
ino += mp->m_inoadd;
#endif
+ if (mp->m_nls)
+ nls_namelen = xfs_unicode_to_nls(mp->m_nls, dep->name,
+ dep->namelen, nls_name, MAXNAMELEN);
/*
* If it didn't fit, set the final offset to here & return.
*/
- if (filldir(dirent, dep->name, dep->namelen, cook,
- ino, DT_UNKNOWN)) {
+
+ if (filldir(dirent, nls_namelen > 0 ? nls_name : (char *)dep->name,
+ nls_namelen > 0 ? nls_namelen : dep->namelen,
+ cook, ino, DT_UNKNOWN)) {
*offset = xfs_dir2_db_off_to_dataptr(mp,
mp->m_dirdatablk,
(char *)dep - (char *)block);
- xfs_da_brelse(NULL, bp);
- return 0;
+ goto out;
}
}
@@ -532,7 +542,10 @@ xfs_dir2_block_getdents(
* Set the offset to a non-existent block 1 and return.
*/
*offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0);
+out:
xfs_da_brelse(NULL, bp);
+ if (mp->m_nls)
+ kmem_free(nls_name, MAXNAMELEN);
return 0;
}
@@ -701,9 +714,8 @@ xfs_dir2_block_lookup_int(
/*
* Compare, if it's right give back buffer & entry number.
*/
- if (dep->namelen == args->namelen &&
- dep->name[0] == args->name[0] &&
- memcmp(dep->name, args->name, args->namelen) == 0) {
+ if (xfs_dir_compname(dp, dep->name, dep->namelen, args->name,
+ args->namelen) == 0) {
*bpp = bp;
*entno = mid;
return 0;
@@ -1189,8 +1201,8 @@ xfs_dir2_sf_to_block(
tagp = xfs_dir2_data_entry_tag_p(dep);
*tagp = cpu_to_be16((char *)dep - (char *)block);
xfs_dir2_data_log_entry(tp, bp, dep);
- blp[2 + i].hashval = cpu_to_be32(xfs_da_hashname(
- (char *)sfep->name, sfep->namelen));
+ blp[2 + i].hashval = cpu_to_be32(xfs_dir_hashname(dp,
+ sfep->name, sfep->namelen));
blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
(char *)dep - (char *)block));
offset = (int)((char *)(tagp + 1) - (char *)block);
===========================================================================
fs/xfs/xfs_dir2_data.c
===========================================================================
--- a/fs/xfs/xfs_dir2_data.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_dir2_data.c 2007-10-10 15:10:39.019079916 +1000
@@ -140,7 +140,8 @@ xfs_dir2_data_check(
addr = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
(xfs_dir2_data_aoff_t)
((char *)dep - (char *)d));
- hash = xfs_da_hashname((char *)dep->name, dep->namelen);
+ hash = xfs_dir_hashname(dp, (char *)dep->name,
+ dep->namelen);
for (i = 0; i < be32_to_cpu(btp->count); i++) {
if (be32_to_cpu(lep[i].address) == addr &&
be32_to_cpu(lep[i].hashval) == hash)
===========================================================================
fs/xfs/xfs_dir2_leaf.c
===========================================================================
--- a/fs/xfs/xfs_dir2_leaf.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_dir2_leaf.c 2007-10-15 16:57:31.749743368 +1000
@@ -40,6 +40,7 @@
#include "xfs_dir2_node.h"
#include "xfs_dir2_trace.h"
#include "xfs_error.h"
+#include "xfs_unicode.h"
/*
* Local function declarations.
@@ -780,6 +781,8 @@ xfs_dir2_leaf_getdents(
int ra_offset; /* map entry offset for ra */
int ra_want; /* readahead count wanted */
xfs_ino_t ino;
+ char *nls_name = NULL; /* NLS name buffer */
+ int nls_namelen = 0;
/*
* If the offset is at or past the largest allowed value,
@@ -800,6 +803,9 @@ xfs_dir2_leaf_getdents(
map_valid = ra_index = ra_offset = ra_current = map_blocks = 0;
bp = NULL;
+ if (mp->m_nls)
+ nls_name = kmem_alloc(MAXNAMELEN, KM_SLEEP);
+
/*
* Inside the loop we keep the main offset value as a byte offset
* in the directory file.
@@ -1086,11 +1092,15 @@ xfs_dir2_leaf_getdents(
#if XFS_BIG_INUMS
ino += mp->m_inoadd;
#endif
+ if (mp->m_nls)
+ nls_namelen = xfs_unicode_to_nls(mp->m_nls, dep->name,
+ dep->namelen, nls_name, MAXNAMELEN);
/*
* Won't fit. Return to caller.
*/
- if (filldir(dirent, dep->name, dep->namelen,
+ if (filldir(dirent, nls_namelen > 0 ? nls_name : (char *)dep->name,
+ nls_namelen > 0 ? nls_namelen : dep->namelen,
xfs_dir2_byte_to_dataptr(mp, curoff + length),
ino, DT_UNKNOWN))
break;
@@ -1113,6 +1123,8 @@ xfs_dir2_leaf_getdents(
kmem_free(map, map_size * sizeof(*map));
if (bp)
xfs_da_brelse(NULL, bp);
+ if (mp->m_nls)
+ kmem_free(nls_name, MAXNAMELEN);
return error;
}
@@ -1392,9 +1404,8 @@ xfs_dir2_leaf_lookup_int(
/*
* If it matches then return it.
*/
- if (dep->namelen == args->namelen &&
- dep->name[0] == args->name[0] &&
- memcmp(dep->name, args->name, args->namelen) == 0) {
+ if (xfs_dir_compname(dp, dep->name, dep->namelen, args->name,
+ args->namelen) == 0) {
*dbpp = dbp;
*indexp = index;
return 0;
===========================================================================
fs/xfs/xfs_dir2_node.c
===========================================================================
--- a/fs/xfs/xfs_dir2_node.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_dir2_node.c 2007-10-10 15:11:08.719279567 +1000
@@ -578,9 +578,8 @@ xfs_dir2_leafn_lookup_int(
/*
* Compare the entry, return it if it matches.
*/
- if (dep->namelen == args->namelen &&
- dep->name[0] == args->name[0] &&
- memcmp(dep->name, args->name, args->namelen) == 0) {
+ if (xfs_dir_compname(dp, dep->name, dep->namelen,
+ args->name, args->namelen) == 0) {
args->inumber = be64_to_cpu(dep->inumber);
*indexp = index;
state->extravalid = 1;
===========================================================================
fs/xfs/xfs_dir2_sf.c
===========================================================================
--- a/fs/xfs/xfs_dir2_sf.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_dir2_sf.c 2007-10-18 14:03:09.916774315 +1000
@@ -38,6 +38,7 @@
#include "xfs_dir2_leaf.h"
#include "xfs_dir2_block.h"
#include "xfs_dir2_trace.h"
+#include "xfs_unicode.h"
/*
* Prototypes for internal functions.
@@ -708,6 +709,8 @@ xfs_dir2_sf_getdents(
xfs_dir2_dataptr_t dot_offset;
xfs_dir2_dataptr_t dotdot_offset;
xfs_ino_t ino;
+ char *nls_name = NULL; /* NLS name buffer */
+ int nls_namelen = 0;
mp = dp->i_mount;
@@ -774,6 +777,9 @@ xfs_dir2_sf_getdents(
}
}
+ if (mp->m_nls)
+ nls_name = kmem_alloc(MAXNAMELEN, KM_SLEEP);
+
/*
* Loop while there are more entries and put'ing works.
*/
@@ -791,17 +797,22 @@ xfs_dir2_sf_getdents(
#if XFS_BIG_INUMS
ino += mp->m_inoadd;
#endif
-
- if (filldir(dirent, sfep->name, sfep->namelen,
+ if (mp->m_nls)
+ nls_namelen = xfs_unicode_to_nls(mp->m_nls, sfep->name,
+ sfep->namelen, nls_name, MAXNAMELEN);
+ if (filldir(dirent, nls_namelen > 0 ? nls_name : (char *)sfep->name,
+ nls_namelen > 0 ? nls_namelen : sfep->namelen,
off + xfs_dir2_data_entsize(sfep->namelen),
ino, DT_UNKNOWN)) {
*offset = off;
- return 0;
+ goto out;
}
sfep = xfs_dir2_sf_nextentry(sfp, sfep);
}
-
*offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0);
+out:
+ if (mp->m_nls)
+ kmem_free(nls_name, MAXNAMELEN);
return 0;
}
@@ -855,9 +866,8 @@ xfs_dir2_sf_lookup(
for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
i < sfp->hdr.count;
i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
- if (sfep->namelen == args->namelen &&
- sfep->name[0] == args->name[0] &&
- memcmp(args->name, sfep->name, args->namelen) == 0) {
+ if (xfs_dir_compname(dp, sfep->name, sfep->namelen,
+ args->name, args->namelen) == 0) {
args->inumber =
xfs_dir2_sf_get_inumber(sfp,
xfs_dir2_sf_inumberp(sfep));
@@ -910,9 +920,8 @@ xfs_dir2_sf_removename(
for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
i < sfp->hdr.count;
i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
- if (sfep->namelen == args->namelen &&
- sfep->name[0] == args->name[0] &&
- memcmp(sfep->name, args->name, args->namelen) == 0) {
+ if (xfs_dir_compname(dp, sfep->name, sfep->namelen,
+ args->name, args->namelen) == 0) {
ASSERT(xfs_dir2_sf_get_inumber(sfp,
xfs_dir2_sf_inumberp(sfep)) ==
args->inumber);
@@ -1047,9 +1056,9 @@ xfs_dir2_sf_replace(
for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
i < sfp->hdr.count;
i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
- if (sfep->namelen == args->namelen &&
- sfep->name[0] == args->name[0] &&
- memcmp(args->name, sfep->name, args->namelen) == 0) {
+ if (xfs_dir_compname(dp, sfep->name,
+ sfep->namelen, args->name,
+ args->namelen) == 0) {
#if XFS_BIG_INUMS || defined(DEBUG)
ino = xfs_dir2_sf_get_inumber(sfp,
xfs_dir2_sf_inumberp(sfep));
===========================================================================
fs/xfs/xfs_mount.c
===========================================================================
--- a/fs/xfs/xfs_mount.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_mount.c 2007-10-23 16:36:16.371190339 +1000
@@ -43,6 +43,7 @@
#include "xfs_rw.h"
#include "xfs_quota.h"
#include "xfs_fsops.h"
+#include "xfs_unicode.h"
STATIC void xfs_mount_log_sbunit(xfs_mount_t *, __int64_t);
STATIC int xfs_uuid_mount(xfs_mount_t *);
@@ -119,6 +120,8 @@ static const struct {
{ offsetof(xfs_sb_t, sb_logsectsize),0 },
{ offsetof(xfs_sb_t, sb_logsunit), 0 },
{ offsetof(xfs_sb_t, sb_features2), 0 },
+ { offsetof(xfs_sb_t, sb_reserved), 0 },
+ { offsetof(xfs_sb_t, sb_cftino), 0 },
{ sizeof(xfs_sb_t), 0 }
};
@@ -171,6 +174,9 @@ xfs_mount_free(
sizeof(xfs_perag_t) * mp->m_sb.sb_agcount);
}
+ if (mp->m_cft)
+ xfs_unicode_free_cft(mp->m_cft);
+
spinlock_destroy(&mp->m_ail_lock);
spinlock_destroy(&mp->m_sb_lock);
mutex_destroy(&mp->m_ilock);
@@ -455,6 +461,8 @@ xfs_sb_from_disk(
to->sb_logsectsize = be16_to_cpu(from->sb_logsectsize);
to->sb_logsunit = be32_to_cpu(from->sb_logsunit);
to->sb_features2 = be32_to_cpu(from->sb_features2);
+ to->sb_bad_features2 = be32_to_cpu(from->sb_bad_features2);
+ to->sb_cftino = be64_to_cpu(from->sb_cftino);
}
/*
@@ -1057,7 +1065,9 @@ xfs_mountfs(
mp->m_dmevmask = 0; /* not persistent; set after each mount */
- xfs_dir_mount(mp);
+ error = xfs_dir_mount(mp);
+ if (error)
+ goto error1;
/*
* Initialize the attribute manager's entries.
@@ -1165,6 +1175,17 @@ xfs_mountfs(
}
/*
+ * Load in unicode case folding table from disk
+ */
+ if (xfs_sb_version_hasunicode(&mp->m_sb)) {
+ error = xfs_unicode_read_cft(mp);
+ if (error) {
+ cmn_err(CE_WARN, "XFS: failed to read unicode table");
+ goto error4;
+ }
+ }
+
+ /*
* If fs is not mounted readonly, then update the superblock
* unit and width changes.
*/
@@ -1220,6 +1241,8 @@ xfs_mountfs(
* Free up the root inode.
*/
VN_RELE(rvp);
+ if (mp->m_cft)
+ xfs_unicode_free_cft(mp->m_cft);
error3:
xfs_log_unmount_dealloc(mp);
error2:
===========================================================================
fs/xfs/xfs_mount.h
===========================================================================
--- a/fs/xfs/xfs_mount.h 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_mount.h 2007-10-22 13:57:35.769401728 +1000
@@ -54,6 +54,7 @@ typedef struct xfs_trans_reservations {
#else
struct cred;
struct log;
+struct nls_table;
struct xfs_mount_args;
struct xfs_inode;
struct xfs_bmbt_irec;
@@ -61,6 +62,8 @@ struct xfs_bmap_free;
struct xfs_extdelta;
struct xfs_swapext;
struct xfs_mru_cache;
+struct xfs_nameops;
+struct xfs_cft;
/*
* Prototypes and functions for the Data Migration subsystem.
@@ -306,6 +309,9 @@ typedef struct xfs_mount {
__uint8_t m_inode_quiesce;/* call quiesce on new inodes.
field governed by m_ilock */
__uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
+ const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */
+ const struct xfs_cft *m_cft; /* unicode case fold table */
+ struct nls_table *m_nls; /* active NLS table */
int m_dirblksize; /* directory block sz--bytes */
int m_dirblkfsbs; /* directory block sz--fsbs */
xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */
@@ -371,6 +377,8 @@ typedef struct xfs_mount {
counters */
#define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams
allocator */
+#define XFS_MOUNT_CI_LOOKUP (1ULL << 25) /* enable case-insensitive
+ * file lookup */
/*
===========================================================================
fs/xfs/xfs_sb.h
===========================================================================
--- a/fs/xfs/xfs_sb.h 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_sb.h 2007-10-23 16:55:47.440178601 +1000
@@ -46,10 +46,12 @@ struct xfs_mount;
#define XFS_SB_VERSION_SECTORBIT 0x0800
#define XFS_SB_VERSION_EXTFLGBIT 0x1000
#define XFS_SB_VERSION_DIRV2BIT 0x2000
+#define XFS_SB_VERSION_OLDCIBIT 0x4000
#define XFS_SB_VERSION_MOREBITSBIT 0x8000
#define XFS_SB_VERSION_OKSASHFBITS \
(XFS_SB_VERSION_EXTFLGBIT | \
- XFS_SB_VERSION_DIRV2BIT)
+ XFS_SB_VERSION_DIRV2BIT | \
+ XFS_SB_VERSION_OLDCIBIT)
#define XFS_SB_VERSION_OKREALFBITS \
(XFS_SB_VERSION_ATTRBIT | \
XFS_SB_VERSION_NLINKBIT | \
@@ -77,10 +79,12 @@ struct xfs_mount;
#define XFS_SB_VERSION2_LAZYSBCOUNTBIT 0x00000002 /* Superblk counters */
#define XFS_SB_VERSION2_RESERVED4BIT 0x00000004
#define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */
+#define XFS_SB_VERSION2_UNICODEBIT 0x00000020 /* Unicode names */
#define XFS_SB_VERSION2_OKREALFBITS \
(XFS_SB_VERSION2_LAZYSBCOUNTBIT | \
- XFS_SB_VERSION2_ATTR2BIT)
+ XFS_SB_VERSION2_ATTR2BIT | \
+ XFS_SB_VERSION2_UNICODEBIT)
#define XFS_SB_VERSION2_OKSASHFBITS \
(0)
#define XFS_SB_VERSION2_OKREALBITS \
@@ -145,6 +149,9 @@ typedef struct xfs_sb {
__uint16_t sb_logsectsize; /* sector size for the log, bytes */
__uint32_t sb_logsunit; /* stripe unit size for the log */
__uint32_t sb_features2; /* additional feature bits */
+ __uint32_t sb_bad_features2; /* features2 could be here */
+ xfs_ino_t sb_cftino; /* unicode case folding table inode */
+ /* must be padded to 64 bit alignment */
} xfs_sb_t;
/*
@@ -205,6 +212,9 @@ typedef struct xfs_dsb {
__be16 sb_logsectsize; /* sector size for the log, bytes */
__be32 sb_logsunit; /* stripe unit size for the log */
__be32 sb_features2; /* additional feature bits */
+ __be32 sb_bad_features2; /* features2 could be here */
+ __be64 sb_cftino; /* unicode case folding table inode */
+ /* must be padded to 64 bit alignment */
} xfs_dsb_t;
/*
@@ -223,7 +233,7 @@ typedef enum {
XFS_SBS_GQUOTINO, XFS_SBS_QFLAGS, XFS_SBS_FLAGS, XFS_SBS_SHARED_VN,
XFS_SBS_INOALIGNMT, XFS_SBS_UNIT, XFS_SBS_WIDTH, XFS_SBS_DIRBLKLOG,
XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT,
- XFS_SBS_FEATURES2,
+ XFS_SBS_FEATURES2, XFS_SBS_BAD_FEATURES2, XFS_SBS_CFTINO,
XFS_SBS_FIELDCOUNT
} xfs_sb_field_t;
@@ -248,13 +258,15 @@ typedef enum {
#define XFS_SB_IFREE XFS_SB_MVAL(IFREE)
#define XFS_SB_FDBLOCKS XFS_SB_MVAL(FDBLOCKS)
#define XFS_SB_FEATURES2 XFS_SB_MVAL(FEATURES2)
+#define XFS_SB_CASEFOLDINO XFS_SB_MVAL(CASEFOLDINO)
#define XFS_SB_NUM_BITS ((int)XFS_SBS_FIELDCOUNT)
#define XFS_SB_ALL_BITS ((1LL << XFS_SB_NUM_BITS) - 1)
#define XFS_SB_MOD_BITS \
(XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \
XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \
XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \
- XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2)
+ XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2 | \
+ XFS_SB_CFTINO)
/*
@@ -463,6 +475,12 @@ static inline int xfs_sb_version_hassect
((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT);
}
+static inline int xfs_sb_version_hasoldci(xfs_sb_t *sbp)
+{
+ return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+ ((sbp)->sb_versionnum & XFS_SB_VERSION_OLDCIBIT);
+}
+
#define XFS_SB_VERSION_HASMOREBITS(sbp) xfs_sb_version_hasmorebits(sbp)
static inline int xfs_sb_version_hasmorebits(xfs_sb_t *sbp)
{
@@ -502,6 +520,13 @@ static inline void xfs_sb_version_addatt
((sbp)->sb_features2 | XFS_SB_VERSION2_ATTR2BIT)));
}
+static inline int xfs_sb_version_hasunicode(xfs_sb_t *sbp)
+{
+ return (xfs_sb_version_hasmorebits(sbp) && \
+ ((sbp)->sb_features2 & XFS_SB_VERSION2_UNICODEBIT));
+}
+
+
/*
* end of superblock version macros
*/
===========================================================================
fs/xfs/xfs_unicode.c
===========================================================================
--- a/fs/xfs/xfs_unicode.c 2006-06-17 00:58:24.000000000 +1000
+++ b/fs/xfs/xfs_unicode.c 2007-10-23 16:17:02.336480442 +1000
@@ -0,0 +1,547 @@
+/*
+ * Copyright (c) 2007 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_bit.h"
+#include "xfs_log.h"
+#include "xfs_inum.h"
+#include "xfs_clnt.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_itable.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_bmap.h"
+#include "xfs_unicode.h"
+
+#define MAX_FOLD_CHARS 4
+
+static inline int
+xfs_casefold(
+ const xfs_cft_t *cft,
+ __uint16_t c,
+ __uint16_t *fc)
+{
+ __uint16_t *table = XFS_CFT_PTR(cft, 0);
+ __uint16_t tmp = table[c >> 8];
+ int i;
+
+ if (!tmp) {
+ *fc = c;
+ return 1;
+ }
+ tmp = table[tmp + (c & 0xff)];
+ if ((tmp & 0xf000) != 0xe000) {
+ *fc = tmp;
+ return 1;
+ }
+ i = ((tmp >> 10) & 0x3) + 2;
+ ASSERT(i < cft->num_tables);
+ table = XFS_CFT_PTR(cft, i - 1) + ((tmp & 0x3ff) * i);
+
+ memcpy(fc, table, sizeof(__uint16_t) * i);
+
+ return i;
+}
+
+static inline int
+xfs_utf8_casefold(
+ const xfs_cft_t *cft,
+ const uchar_t **name,
+ int *namelen,
+ __uint16_t *fc)
+{
+ wchar_t uc;
+
+ if (*namelen == 0)
+ return 0;
+
+ if (**name & 0x80) {
+ int n = utf8_mbtowc(&uc, *name, *namelen);
+ if (n < 0) {
+ (*namelen)--;
+ *fc = *(*name)++;
+ return 1;
+ }
+ *name += n;
+ *namelen -= n;
+ } else {
+ uc = *(*name)++;
+ (*namelen)--;
+ }
+ return xfs_casefold(cft, uc, fc);
+}
+
+__uint32_t
+xfs_unicode_hash(
+ const xfs_cft_t *cft,
+ const uchar_t *name,
+ int namelen)
+{
+ __uint32_t hash = 0;
+ __uint16_t fc[MAX_FOLD_CHARS];
+ int nfc;
+ int i;
+
+ while (namelen > 0) {
+ nfc = xfs_utf8_casefold(cft, &name, &namelen, fc);
+ for (i = 0; i < nfc; i++)
+ hash = fc[i] ^ rol32(hash, 7);
+ }
+ return hash;
+}
+
+int
+xfs_unicode_casecmp(
+ const xfs_cft_t *cft,
+ const uchar_t *name1,
+ int len1,
+ const uchar_t *name2,
+ int len2)
+{
+ __uint16_t fc1[MAX_FOLD_CHARS], fc2[MAX_FOLD_CHARS];
+ __uint16_t *pfc1, *pfc2;
+ int nfc1, nfc2;
+
+ nfc1 = xfs_utf8_casefold(cft, &name1, &len1, fc1);
+ pfc1 = fc1;
+ nfc2 = xfs_utf8_casefold(cft, &name2, &len2, fc2);
+ pfc2 = fc2;
+
+ while (nfc1 > 0 && nfc2 > 0) {
+ if (*pfc1 != *pfc2)
+ return (*pfc1 < *pfc2) ? -1 : 1;
+ if (!--nfc1) {
+ nfc1 = xfs_utf8_casefold(cft, &name1, &len1, fc1);
+ pfc1 = fc1;
+ } else
+ pfc1++;
+ if (!--nfc2) {
+ nfc2 = xfs_utf8_casefold(cft, &name2, &len2, fc2);
+ pfc2 = fc2;
+ } else
+ pfc2++;
+ }
+ if (nfc1 != nfc2)
+ return (nfc1 < nfc2) ? -1 : 1;
+ return 0;
+}
+
+
+int
+xfs_nls_to_unicode(
+ struct nls_table *nls,
+ const char *nls_name,
+ int nls_namelen,
+ char *uni_name,
+ int uni_buflen)
+{
+ int i, o;
+ wchar_t uc;
+ int nlen;
+ int u8len;
+
+ if (!nls) {
+ if (uni_buflen < nls_namelen)
+ return -ENAMETOOLONG;
+ memcpy(uni_name, nls_name, nls_namelen);
+ return nls_namelen;
+ }
+
+ for (i = 0, o = 0; i < nls_namelen; i += nlen, o += u8len) {
+ nlen = nls->char2uni(nls_name + i, nls_namelen - i, &uc);
+ if (nlen < 0)
+ return nlen;
+ if (uc >= 0xfffe || (uc >= 0xd800 && uc <= 0xdfff))
+ return -EINVAL; /* don't support chars outside BMP */
+ u8len = utf8_wctomb(uni_name + o, uc, uni_buflen - o);
+ if (u8len <= 0)
+ return (uni_buflen - o < 3) ? -ENAMETOOLONG : -EINVAL;
+ }
+ return o;
+}
+
+int
+xfs_unicode_to_nls(
+ struct nls_table *nls,
+ const char *uni_name,
+ int uni_namelen,
+ char *nls_name,
+ int nls_buflen)
+{
+ int i, o;
+ wchar_t uc;
+ int nlen;
+ int u8len;
+
+ if (!nls) {
+ if (nls_buflen < uni_namelen)
+ return -ENAMETOOLONG;
+ memcpy(nls_name, uni_name, uni_namelen);
+ return uni_namelen;
+ }
+
+ for (i = 0, o = 0; i < uni_namelen && o < nls_buflen; i += u8len, o +=
nlen) {
+ u8len = utf8_mbtowc(&uc, uni_name + i, uni_namelen - i);
+ if (u8len < 0)
+ return -EINVAL;
+ nlen = nls->uni2char(uc, nls_name + o, nls_buflen - o);
+ if (nlen == -EINVAL) {
+ nls_name[o] = '?';
+ nlen = 1;
+ } else if (nlen < 0)
+ return nlen;
+ }
+ if (i < uni_namelen)
+ return -ENAMETOOLONG;
+ return o;
+}
+
+static inline int
+xfs_nls_casefold(
+ struct nls_table *nls,
+ const xfs_cft_t *cft,
+ const uchar_t **name,
+ int *namelen,
+ __uint16_t *fc)
+{
+ wchar_t uc;
+
+ if (*namelen == 0)
+ return 0;
+
+ if (**name & 0x80) {
+ int n = nls->char2uni(*name, *namelen, &uc);
+ if (n < 0) {
+ uc = *(*name)++;
+ (*namelen)--;
+ } else {
+ *name += n;
+ *namelen -= n;
+ }
+ } else {
+ uc = *(*name)++;
+ (*namelen)--;
+ }
+ return xfs_casefold(cft, uc, fc);
+}
+
+
+__uint32_t
+xfs_nls_hash(
+ struct nls_table *nls,
+ const xfs_cft_t *cft,
+ const uchar_t *name,
+ int namelen)
+{
+ __uint32_t hash = 0;
+ __uint16_t fc[MAX_FOLD_CHARS];
+ int i, nfc;
+
+ while (namelen > 0) {
+ nfc = xfs_nls_casefold(nls, cft, &name, &namelen, fc);
+ for (i = 0; i < nfc; i++)
+ hash = fc[i] ^ rol32(hash, 7);
+ }
+ return hash;
+}
+
+int
+xfs_nls_casecmp(
+ struct nls_table *nls,
+ const xfs_cft_t *cft,
+ const uchar_t *name1,
+ int len1,
+ const uchar_t *name2,
+ int len2)
+{
+ __uint16_t fc1[MAX_FOLD_CHARS], fc2[MAX_FOLD_CHARS];
+ __uint16_t *pfc1, *pfc2;
+ int nfc1, nfc2;
+
+ nfc1 = xfs_nls_casefold(nls, cft, &name1, &len1, fc1);
+ pfc1 = fc1;
+ nfc2 = xfs_nls_casefold(nls, cft, &name2, &len2, fc2);
+ pfc2 = fc2;
+
+ while (nfc1 > 0 && nfc2 > 0) {
+ if (*pfc1 != *pfc2)
+ return (*pfc1 < *pfc2) ? -1 : 1;
+ if (!--nfc1) {
+ nfc1 = xfs_nls_casefold(nls, cft, &name1, &len1, fc1);
+ pfc1 = fc1;
+ } else
+ pfc1++;
+ if (!--nfc2) {
+ nfc2 = xfs_nls_casefold(nls, cft, &name2, &len2, fc2);
+ pfc2 = fc2;
+ } else
+ pfc2++;
+ }
+ if (nfc1 != nfc2)
+ return (nfc1 < nfc2) ? -1 : 1;
+ return 0;
+
+}
+
+int
+xfs_unicode_validate(
+ const uchar_t *name,
+ int namelen)
+{
+ wchar_t uc;
+ int i, nlen;
+
+ for (i = 0; i < namelen; i += nlen) {
+ if (*name >= 0xf0) {
+ cmn_err(CE_WARN, "xfs_unicode_validate: "
+ "UTF-8 char beyond U+FFFF\n");
+ return -EINVAL;
+ }
+ /* utf8_mbtowc must fail on overlong sequences too */
+ nlen = utf8_mbtowc(&uc, name + i, namelen - i);
+ if (nlen < 0) {
+ cmn_err(CE_WARN, "xfs_unicode_validate: "
+ "invalid UTF-8 sequence\n");
+ return -EILSEQ;
+ }
+ /* check for invalid/surrogate/private unicode chars */
+ if (uc >= 0xfffe || (uc >= 0xd800 && uc <= 0xf8ff)) {
+ cmn_err(CE_WARN, "xfs_unicode_validate: "
+ "unsupported UTF-8 char\n");
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Unicode Case Fold Table management
+ */
+
+struct cft_item {
+ xfs_cft_t *table;
+ int size;
+ int refcount;
+};
+
+static mutex_t cft_lock;
+static int cft_size;
+static struct cft_item *cft_list;
+
+static xfs_cft_t *
+add_cft(
+ xfs_dcft_t *dcft,
+ int size)
+{
+ int found = 0;
+ int i, j;
+ xfs_cft_t *cft;
+ __be16 *duc;
+ __uint16_t *uc;
+
+ mutex_lock(&cft_lock);
+
+ for (i = 0; i < cft_size; i++) {
+ if (cft_list[i].size != size)
+ continue;
+ cft = cft_list[i].table;
+ if (cft->num_tables != be32_to_cpu(dcft->num_tables) ||
+ cft->flags != be32_to_cpu(dcft->flags))
+ continue;
+ found = 1;
+ for (j = 0; j < cft->num_tables; j++) {
+ if (cft->table_offset[j] !=
+ be32_to_cpu(dcft->table_offset[j])) {
+ found = 0;
+ break;
+ }
+ }
+ if (found) {
+ cft_list[i].refcount++;
+ mutex_unlock(&cft_lock);
+ return cft;
+ }
+ }
+
+ cft = vmalloc(size);
+ if (!cft) {
+ mutex_unlock(&cft_lock);
+ return NULL;
+ }
+ cft->magic = be32_to_cpu(dcft->magic);
+ cft->flags = be32_to_cpu(dcft->flags);
+ cft->num_tables = be32_to_cpu(dcft->num_tables);
+ ASSERT(cft->num_tables <= MAX_FOLD_CHARS);
+ for (i = 0; i < cft->num_tables; i++)
+ cft->table_offset[i] = be32_to_cpu(dcft->table_offset[i]);
+ j = (size - cft->table_offset[0]) / sizeof(__uint16_t);
+ uc = XFS_CFT_PTR(cft, 0);
+ duc = XFS_DCFT_PTR(dcft, 0);
+ for (i = 0; i < j; i++)
+ uc[i] = be16_to_cpu(duc[i]);
+
+ cft_list = kmem_realloc(cft_list,
+ (cft_size + 1) * sizeof(struct cft_item),
+ cft_size * sizeof(struct cft_item), KM_SLEEP);
+ cft_list[cft_size].table = cft;
+ cft_list[cft_size].size = size;
+ cft_list[cft_size].refcount = 1;
+ cft_size++;
+
+ mutex_unlock(&cft_lock);
+
+ return cft;
+}
+
+static void
+remove_cft(
+ const xfs_cft_t *cft)
+{
+ int i;
+
+ mutex_lock(&cft_lock);
+
+ for (i = 0; i < cft_size; i++) {
+ if (cft_list[i].table == cft) {
+ ASSERT(cft_list[i].refcount > 0);
+ cft_list[i].refcount--;
+ break;
+ }
+ }
+
+ mutex_unlock(&cft_lock);
+}
+
+
+int
+xfs_unicode_read_cft(
+ xfs_mount_t *mp)
+{
+ int error;
+ xfs_inode_t *cftip;
+ int size;
+ int nfsb;
+ int nmap;
+ xfs_bmbt_irec_t *mapp;
+ int n;
+ int byte_cnt;
+ xfs_buf_t *bp;
+ char *table;
+ xfs_dcft_t *dcft;
+
+ if (mp->m_sb.sb_cftino == NULLFSINO || mp->m_sb.sb_cftino == 0)
+ return EINVAL;
+ error = xfs_iget(mp, NULL, mp->m_sb.sb_cftino, 0, 0, &cftip, 0);
+ if (error)
+ return error;
+ ASSERT(cftip != NULL);
+
+ size = cftip->i_d.di_size;
+ nfsb = cftip->i_d.di_nblocks;
+
+ table = vmalloc(size);
+ if (!table) {
+ xfs_iput(cftip, 0);
+ return ENOMEM;
+ }
+ dcft = (xfs_dcft_t *)table;
+
+ nmap = nfsb;
+ mapp = kmem_alloc(nfsb * sizeof(xfs_bmbt_irec_t), KM_SLEEP);
+
+ error = xfs_bmapi(NULL, cftip, 0, nfsb, 0, NULL, 0, mapp, &nmap,
+ NULL, NULL);
+ if (error)
+ goto out;
+
+ for (n = 0; n < nmap; n++) {
+ byte_cnt = XFS_FSB_TO_B(mp, mapp[n].br_blockcount);
+
+ bp = xfs_buf_read(mp->m_ddev_targp,
+ XFS_FSB_TO_DADDR(mp, mapp[n].br_startblock),
+ BTOBB(byte_cnt), 0);
+ error = XFS_BUF_GETERROR(bp);
+ if (error)
+ goto out;
+
+ if (size < byte_cnt)
+ byte_cnt = size;
+ size -= byte_cnt;
+ memcpy(table, XFS_BUF_PTR(bp), byte_cnt);
+ table += byte_cnt;
+ xfs_buf_relse(bp);
+ }
+
+ mp->m_cft = add_cft(dcft, cftip->i_d.di_size);
+ if (mp->m_cft == NULL)
+ error = ENOMEM;
+
+out:
+ xfs_iput(cftip, 0);
+ kmem_free(mapp, nfsb * sizeof(xfs_bmbt_irec_t));
+ vfree(dcft);
+
+ return error;
+}
+
+void
+xfs_unicode_free_cft(
+ const xfs_cft_t *cft)
+{
+ remove_cft(cft);
+}
+
+void
+xfs_unicode_init(void)
+{
+ mutex_init(&cft_lock);
+}
+
+void
+xfs_unicode_uninit(void)
+{
+ int i;
+
+ mutex_lock(&cft_lock);
+
+ for (i = 0; i < cft_size; i++) {
+ ASSERT(cft_list[i].refcount == 0);
+ vfree(cft_list[i].table);
+ }
+ kmem_free(cft_list, cft_size * sizeof(struct cft_item));
+ cft_size = 0;
+ cft_list = NULL;
+
+ mutex_unlock(&cft_lock);
+}
===========================================================================
fs/xfs/xfs_unicode.h
===========================================================================
--- a/fs/xfs/xfs_unicode.h 2006-06-17 00:58:24.000000000 +1000
+++ b/fs/xfs/xfs_unicode.h 2007-10-23 13:04:32.733676326 +1000
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2007 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef __XFS_UNICODE_H__
+#define __XFS_UNICODE_H__
+
+#define XFS_CFT_MAGIC 0x58434654 /* 'XCFT' */
+#define XFS_CFT_FLAG_TURKIC 0x00000001
+
+/*
+ * Case Fold Table - on disk version. Must match the incore version below.
+ */
+typedef struct xfs_dcft {
+ __be32 magic; /* validity check */
+ __be32 flags;
+ __be32 num_tables; /* single, double, etc */
+ __be32 table_offset[1];
+} xfs_dcft_t;
+
+/*
+ * Case Fold Table - in core version. Must match the ondisk version above.
+ */
+typedef struct xfs_cft {
+ __uint32_t magic;
+ __uint32_t flags;
+ __uint32_t num_tables; /* single, double, etc */
+ __uint32_t table_offset[1];/* num_tables sized */
+ /* 16-bit array tables immediately follow */
+} xfs_cft_t;
+
+#define XFS_CFT_PTR(t,n) (__uint16_t *)(((char *)(t)) + \
+ (t)->table_offset[n])
+#define XFS_DCFT_PTR(t,n) (__be16 *)(((char *)(t)) + \
+ be32_to_cpu((t)->table_offset[n]))
+
+extern void xfs_unicode_init(void);
+extern void xfs_unicode_uninit(void);
+
+extern __uint32_t xfs_unicode_hash(const xfs_cft_t *cft,
+ const uchar_t *name, int namelen);
+
+extern int xfs_unicode_casecmp(const xfs_cft_t *cft, const uchar_t *name1,
+ int len1, const uchar_t *name2, int len2);
+
+extern int xfs_nls_to_unicode(struct nls_table *nls, const char *nls_name,
+ int nls_namelen, char *uni_name, int uni_buflen);
+extern int xfs_unicode_to_nls(struct nls_table *nls, const char *uni_name,
+ int uni_namelen, char *nls_name, int nls_buflen);
+
+extern __uint32_t xfs_nls_hash(struct nls_table *nls, const xfs_cft_t
*cft,
+ const uchar_t *name, int namelen);
+extern int xfs_nls_casecmp(struct nls_table *nls, const xfs_cft_t *cft,
+ const uchar_t *name1, int len1,
+ const uchar_t *name2, int len2);
+
+extern int xfs_unicode_validate(const uchar_t *name, int namelen);
+
+extern int xfs_unicode_read_cft(struct xfs_mount *mp);
+extern void xfs_unicode_free_cft(const xfs_cft_t *cft);
+
+#endif /* __XFS_UNICODE_H__ */
===========================================================================
fs/xfs/xfs_vfsops.c
===========================================================================
--- a/fs/xfs/xfs_vfsops.c 2007-10-23 17:19:41.000000000 +1000
+++ b/fs/xfs/xfs_vfsops.c 2007-10-23 17:00:14.533732586 +1000
@@ -56,7 +56,7 @@
#include "xfs_fsops.h"
#include "xfs_vnodeops.h"
#include "xfs_vfsops.h"
-
+#include "xfs_unicode.h"
int
xfs_init(void)
@@ -86,6 +86,7 @@ xfs_init(void)
xfs_acl_zone_init(xfs_acl_zone, "xfs_acl");
xfs_mru_cache_init();
xfs_filestream_init();
+ xfs_unicode_init();
/*
* The size of the zone allocated buf log item is the maximum
@@ -169,6 +170,7 @@ xfs_cleanup(void)
xfs_cleanup_procfs();
xfs_sysctl_unregister();
xfs_refcache_destroy();
+ xfs_unicode_uninit();
xfs_filestream_uninit();
xfs_mru_cache_uninit();
xfs_acl_zone_destroy(xfs_acl_zone);
@@ -258,7 +260,6 @@ xfs_start_flags(
mp->m_logname = kmem_alloc(strlen(ap->logname) + 1, KM_SLEEP);
strcpy(mp->m_logname, ap->logname);
}
-
if (ap->flags & XFSMNT_WSYNC)
mp->m_flags |= XFS_MOUNT_WSYNC;
#if XFS_BIG_INUMS
@@ -415,6 +416,37 @@ xfs_finish_flags(
mp->m_qflags |= XFS_OQUOTA_ENFD;
}
+ if (xfs_sb_version_hasunicode(&mp->m_sb)) {
+ if (ap->flags2 & XFSMNT2_CILOOKUP)
+ mp->m_flags |= XFS_MOUNT_CI_LOOKUP;
+
+ mp->m_nls = ap->nls[0] ? load_nls(ap->nls) : load_nls_default();
+ if (!mp->m_nls) {
+ cmn_err(CE_WARN,
+ "XFS: unable to load nls mapping \"%s\"\n", ap->nls);
+ return XFS_ERROR(EINVAL);
+ }
+ if (strcmp(mp->m_nls->charset, "utf8") == 0) {
+ /* special case utf8 - no translation required */
+ unload_nls(mp->m_nls);
+ mp->m_nls = NULL;
+ }
+ } else {
+ /*
+ * Check for mount options which require a Unicode FS
+ */
+ if (ap->flags2 & XFSMNT2_CILOOKUP) {
+ cmn_err(CE_WARN,
+ "XFS: can't do case-insensitive mount on non-utf8 filesystem");
+ return XFS_ERROR(EINVAL);
+
+ }
+ if (ap->nls[0]) {
+ cmn_err(CE_WARN,
+ "XFS: can't use nls mount option on non-utf8 filesystem");
+ return XFS_ERROR(EINVAL);
+ }
+ }
return 0;
}
@@ -652,6 +684,8 @@ out:
xfs_unmountfs(mp, credp);
xfs_qmops_put(mp);
xfs_dmops_put(mp);
+ if (mp->m_nls)
+ unload_nls(mp->m_nls);
kmem_free(mp, sizeof(xfs_mount_t));
}
@@ -1505,6 +1539,9 @@ xfs_vget(
#define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */
#define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */
#define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */
+#define MNTOPT_NLS "nls" /* NLS code page to use */
+#define MNTOPT_CILOOKUP "ci" /* case-insensitive lookup */
+#define MNTOPT_CIATTR "ciattr" /* case-insensitive attrs */
#define MNTOPT_QUOTA "quota" /* disk quotas (user) */
#define MNTOPT_NOQUOTA "noquota" /* no quotas */
#define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */
@@ -1699,6 +1736,18 @@ xfs_parseargs(
args->flags &= ~XFSMNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
args->flags2 |= XFSMNT2_FILESTREAMS;
+ } else if (!strcmp(this_char, MNTOPT_NLS)) {
+ if (!value || !*value) {
+ cmn_err(CE_WARN,
+ "XFS: %s option requires an argument",
+ this_char);
+ return EINVAL;
+ }
+ strncpy(args->nls, value, MAXNAMELEN);
+ } else if (!strcmp(this_char, MNTOPT_CILOOKUP)) {
+ args->flags2 |= XFSMNT2_CILOOKUP;
+ } else if (!strcmp(this_char, MNTOPT_CIATTR)) {
+ args->flags2 |= XFSMNT2_CIATTR;
} else if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA);
args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA);
-
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