aboutsummaryrefslogtreecommitdiffstats
path: root/fs/udf/namei.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/udf/namei.c')
-rw-r--r--fs/udf/namei.c60
1 files changed, 33 insertions, 27 deletions
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 77b6d89b9bcd..ae7bc13a5298 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -30,6 +30,7 @@
#include <linux/sched.h>
#include <linux/crc-itu-t.h>
#include <linux/exportfs.h>
+#include <linux/iversion.h>
static inline int udf_match(int len1, const unsigned char *name1, int len2,
const unsigned char *name2)
@@ -74,12 +75,11 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
if (fileident) {
if (adinicb || (offset + lfi < 0)) {
- memcpy((uint8_t *)sfi->fileIdent + liu, fileident, lfi);
+ memcpy(sfi->impUse + liu, fileident, lfi);
} else if (offset >= 0) {
memcpy(fibh->ebh->b_data + offset, fileident, lfi);
} else {
- memcpy((uint8_t *)sfi->fileIdent + liu, fileident,
- -offset);
+ memcpy(sfi->impUse + liu, fileident, -offset);
memcpy(fibh->ebh->b_data, fileident - offset,
lfi + offset);
}
@@ -88,11 +88,11 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
offset += lfi;
if (adinicb || (offset + padlen < 0)) {
- memset((uint8_t *)sfi->padding + liu + lfi, 0x00, padlen);
+ memset(sfi->impUse + liu + lfi, 0x00, padlen);
} else if (offset >= 0) {
memset(fibh->ebh->b_data + offset, 0x00, padlen);
} else {
- memset((uint8_t *)sfi->padding + liu + lfi, 0x00, -offset);
+ memset(sfi->impUse + liu + lfi, 0x00, -offset);
memset(fibh->ebh->b_data, 0x00, padlen + offset);
}
@@ -135,6 +135,8 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
mark_buffer_dirty_inode(fibh->ebh, inode);
mark_buffer_dirty_inode(fibh->sbh, inode);
}
+ inode_inc_iversion(inode);
+
return 0;
}
@@ -226,7 +228,7 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
lfi = cfi->lengthFileIdent;
if (fibh->sbh == fibh->ebh) {
- nameptr = fi->fileIdent + liu;
+ nameptr = udf_get_fi_ident(fi);
} else {
int poffset; /* Unpaded ending offset */
@@ -238,7 +240,7 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
poffset - lfi);
else {
if (!copy_name) {
- copy_name = kmalloc(UDF_NAME_LEN,
+ copy_name = kmalloc(UDF_NAME_LEN_CS0,
GFP_NOFS);
if (!copy_name) {
fi = ERR_PTR(-ENOMEM);
@@ -246,7 +248,7 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
}
}
nameptr = copy_name;
- memcpy(nameptr, fi->fileIdent + liu,
+ memcpy(nameptr, udf_get_fi_ident(fi),
lfi - poffset);
memcpy(nameptr + lfi - poffset,
fibh->ebh->b_data, poffset);
@@ -460,8 +462,7 @@ add:
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
block = dinfo->i_location.logicalBlockNum;
fi = (struct fileIdentDesc *)
- (dinfo->i_ext.i_data +
- fibh->soffset -
+ (dinfo->i_data + fibh->soffset -
udf_ext0_offset(dir) +
dinfo->i_lenEAttr);
} else {
@@ -605,8 +606,8 @@ static int udf_add_nondir(struct dentry *dentry, struct inode *inode)
return 0;
}
-static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
- bool excl)
+static int udf_create(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode, bool excl)
{
struct inode *inode = udf_new_inode(dir, mode);
@@ -624,7 +625,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
return udf_add_nondir(dentry, inode);
}
-static int udf_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
+static int udf_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
+ struct file *file, umode_t mode)
{
struct inode *inode = udf_new_inode(dir, mode);
@@ -638,13 +640,13 @@ static int udf_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
inode->i_op = &udf_file_inode_operations;
inode->i_fop = &udf_file_operations;
mark_inode_dirty(inode);
- d_tmpfile(dentry, inode);
+ d_tmpfile(file, inode);
unlock_new_inode(inode);
- return 0;
+ return finish_open_simple(file, 0);
}
-static int udf_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
- dev_t rdev)
+static int udf_mknod(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode, dev_t rdev)
{
struct inode *inode;
@@ -659,7 +661,8 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
return udf_add_nondir(dentry, inode);
}
-static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
+static int udf_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode)
{
struct inode *inode;
struct udf_fileident_bh fibh;
@@ -878,8 +881,8 @@ out:
return retval;
}
-static int udf_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
+static int udf_symlink(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, const char *symname)
{
struct inode *inode = udf_new_inode(dir, S_IFLNK | 0777);
struct pathComponent *pc;
@@ -933,6 +936,10 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
iinfo->i_location.partitionReferenceNum,
0);
epos.bh = udf_tgetblk(sb, block);
+ if (unlikely(!epos.bh)) {
+ err = -ENOMEM;
+ goto out_no_entry;
+ }
lock_buffer(epos.bh);
memset(epos.bh->b_data, 0x00, bsize);
set_buffer_uptodate(epos.bh);
@@ -940,7 +947,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
mark_buffer_dirty_inode(epos.bh, inode);
ea = epos.bh->b_data + udf_ext0_offset(inode);
} else
- ea = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
+ ea = iinfo->i_data + iinfo->i_lenEAttr;
eoffset = sb->s_blocksize - udf_ext0_offset(inode);
pc = (struct pathComponent *)ea;
@@ -1066,9 +1073,9 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
/* Anybody can rename anything with this: the permission checks are left to the
* higher-level routines.
*/
-static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry,
- unsigned int flags)
+static int udf_rename(struct user_namespace *mnt_userns, struct inode *old_dir,
+ struct dentry *old_dentry, struct inode *new_dir,
+ struct dentry *new_dentry, unsigned int flags)
{
struct inode *old_inode = d_inode(old_dentry);
struct inode *new_inode = d_inode(new_dentry);
@@ -1120,7 +1127,7 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
retval = -EIO;
if (old_iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
dir_fi = udf_get_fileident(
- old_iinfo->i_ext.i_data -
+ old_iinfo->i_data -
(old_iinfo->i_efe ?
sizeof(struct extendedFileEntry) :
sizeof(struct fileEntry)),
@@ -1214,11 +1221,10 @@ static struct dentry *udf_get_parent(struct dentry *child)
{
struct kernel_lb_addr tloc;
struct inode *inode = NULL;
- struct qstr dotdot = QSTR_INIT("..", 2);
struct fileIdentDesc cfi;
struct udf_fileident_bh fibh;
- if (!udf_find_entry(d_inode(child), &dotdot, &fibh, &cfi))
+ if (!udf_find_entry(d_inode(child), &dotdot_name, &fibh, &cfi))
return ERR_PTR(-EACCES);
if (fibh.sbh != fibh.ebh)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.