Parent pointer attributes use a binary name, so strlen will not work.
Calling functions will need to pass in the name length
Signed-off-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_attr.c | 12 ++++++++----
fs/xfs/libxfs/xfs_attr.h | 10 ++++++----
fs/xfs/xfs_acl.c | 12 +++++++-----
fs/xfs/xfs_ioctl.c | 13 ++++++++++---
fs/xfs/xfs_iops.c | 6 ++++--
fs/xfs/xfs_trans_attr.c | 2 +-
fs/xfs/xfs_xattr.c | 10 ++++++----
7 files changed, 42 insertions(+), 23 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index c1844ae..14cbda1 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -80,6 +80,7 @@ xfs_attr_args_init(
struct xfs_da_args *args,
struct xfs_inode *dp,
const unsigned char *name,
+ size_t namelen,
int flags)
{
@@ -92,7 +93,7 @@ xfs_attr_args_init(
args->dp = dp;
args->flags = flags;
args->name = name;
- args->namelen = strlen((const char *)name);
+ args->namelen = namelen;
if (args->namelen >= MAXNAMELEN)
return -EFAULT; /* match IRIX behaviour */
@@ -138,6 +139,7 @@ int
xfs_attr_get(
struct xfs_inode *ip,
const unsigned char *name,
+ size_t namelen,
unsigned char *value,
int *valuelenp,
int flags)
@@ -151,7 +153,7 @@ xfs_attr_get(
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return -EIO;
- error = xfs_attr_args_init(&args, ip, name, flags);
+ error = xfs_attr_args_init(&args, ip, name, namelen, flags);
if (error)
return error;
@@ -375,6 +377,7 @@ int
xfs_attr_set(
struct xfs_inode *dp,
const unsigned char *name,
+ size_t namelen,
unsigned char *value,
int valuelen,
int flags)
@@ -393,7 +396,7 @@ xfs_attr_set(
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return -EIO;
- error = xfs_attr_args_init(&args, dp, name, flags);
+ error = xfs_attr_args_init(&args, dp, name, namelen, flags);
if (error)
return error;
@@ -523,6 +526,7 @@ int
xfs_attr_remove(
struct xfs_inode *dp,
const unsigned char *name,
+ size_t namelen,
int flags)
{
struct xfs_mount *mp = dp->i_mount;
@@ -536,7 +540,7 @@ xfs_attr_remove(
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return -EIO;
- error = xfs_attr_args_init(&args, dp, name, flags);
+ error = xfs_attr_args_init(&args, dp, name, namelen, flags);
if (error)
return error;
diff --git a/fs/xfs/libxfs/xfs_attr.h b/fs/xfs/libxfs/xfs_attr.h
index ec26565..308a93e 100644
--- a/fs/xfs/libxfs/xfs_attr.h
+++ b/fs/xfs/libxfs/xfs_attr.h
@@ -171,17 +171,19 @@ int xfs_attr_list_int(struct xfs_attr_list_context *);
int xfs_inode_hasattr(struct xfs_inode *ip);
int xfs_attr_get_ilocked(struct xfs_inode *ip, struct xfs_da_args *args);
int xfs_attr_get(struct xfs_inode *ip, const unsigned char *name,
- unsigned char *value, int *valuelenp, int flags);
+ size_t namelen, unsigned char *value, int *valuelenp,
+ int flags);
int xfs_attr_set(struct xfs_inode *dp, const unsigned char *name,
- unsigned char *value, int valuelen, int flags);
+ size_t namelen, unsigned char *value, int valuelen, int flags);
int xfs_attr_set_args(struct xfs_da_args *args, int flags,
struct xfs_buf *leaf_bp, bool roll_trans);
-int xfs_attr_remove(struct xfs_inode *dp, const unsigned char *name, int flags);
+int xfs_attr_remove(struct xfs_inode *dp, const unsigned char *name,
+ size_t namelen, int flags);
int xfs_attr_remove_args(struct xfs_da_args *args, int flags, bool roll_trans);
int xfs_attr_list(struct xfs_inode *dp, char *buffer, int bufsize,
int flags, struct attrlist_cursor_kern *cursor);
int xfs_attr_args_init(struct xfs_da_args *args, struct xfs_inode *dp,
- const unsigned char *name, int flags);
+ const unsigned char *name, size_t namelen, int flags);
int xfs_attr_calc_size(struct xfs_da_args *args, int *local);
int xfs_attr_set_deferred(struct xfs_inode *dp, struct xfs_defer_ops *dfops,
void *name, unsigned int name_len, void *value,
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index 3354140..e59b26d 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -153,8 +153,8 @@ xfs_get_acl(struct inode *inode, int type)
if (!xfs_acl)
return ERR_PTR(-ENOMEM);
- error = xfs_attr_get(ip, ea_name, (unsigned char *)xfs_acl,
- &len, ATTR_ROOT);
+ error = xfs_attr_get(ip, ea_name, strlen(ea_name),
+ (unsigned char *)xfs_acl, &len, ATTR_ROOT);
if (error) {
/*
* If the attribute doesn't exist make sure we have a negative
@@ -204,15 +204,17 @@ __xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
len -= sizeof(struct xfs_acl_entry) *
(XFS_ACL_MAX_ENTRIES(ip->i_mount) - acl->a_count);
- error = xfs_attr_set(ip, ea_name, (unsigned char *)xfs_acl,
- len, ATTR_ROOT);
+ error = xfs_attr_set(ip, ea_name, strlen(ea_name),
+ (unsigned char *)xfs_acl, len, ATTR_ROOT);
kmem_free(xfs_acl);
} else {
/*
* A NULL ACL argument means we want to remove the ACL.
*/
- error = xfs_attr_remove(ip, ea_name, ATTR_ROOT);
+ error = xfs_attr_remove(ip, ea_name,
+ strlen(ea_name),
+ ATTR_ROOT);
/*
* If the attribute didn't exist to start with that's fine.
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 89fb1eb..844480a 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -450,6 +450,7 @@ xfs_attrmulti_attr_get(
{
unsigned char *kbuf;
int error = -EFAULT;
+ size_t namelen;
if (*len > XFS_XATTR_SIZE_MAX)
return -EINVAL;
@@ -457,7 +458,9 @@ xfs_attrmulti_attr_get(
if (!kbuf)
return -ENOMEM;
- error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags);
+ namelen = strlen(name);
+ error = xfs_attr_get(XFS_I(inode), name, namelen,
+ kbuf, (int *)len, flags);
if (error)
goto out_kfree;
@@ -479,6 +482,7 @@ xfs_attrmulti_attr_set(
{
unsigned char *kbuf;
int error;
+ size_t namelen;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
return -EPERM;
@@ -489,7 +493,8 @@ xfs_attrmulti_attr_set(
if (IS_ERR(kbuf))
return PTR_ERR(kbuf);
- error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags);
+ namelen = strlen(name);
+ error = xfs_attr_set(XFS_I(inode), name, namelen, kbuf, len, flags);
if (!error)
xfs_forget_acl(inode, name, flags);
kfree(kbuf);
@@ -503,10 +508,12 @@ xfs_attrmulti_attr_remove(
uint32_t flags)
{
int error;
+ size_t namelen;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
return -EPERM;
- error = xfs_attr_remove(XFS_I(inode), name, flags);
+ namelen = strlen(name);
+ error = xfs_attr_remove(XFS_I(inode), name, namelen, flags);
if (!error)
xfs_forget_acl(inode, name, flags);
return error;
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index c45acf0..7920f19 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -71,8 +71,10 @@ xfs_initxattrs(
int error = 0;
for (xattr = xattr_array; xattr->name != NULL; xattr++) {
- error = xfs_attr_set(ip, xattr->name, xattr->value,
- xattr->value_len, ATTR_SECURE);
+ error = xfs_attr_set(ip, xattr->name,
+ strlen(xattr->name),
+ xattr->value, xattr->value_len,
+ ATTR_SECURE);
if (error < 0)
break;
}
diff --git a/fs/xfs/xfs_trans_attr.c b/fs/xfs/xfs_trans_attr.c
index 7296414..848f086 100644
--- a/fs/xfs/xfs_trans_attr.c
+++ b/fs/xfs/xfs_trans_attr.c
@@ -84,7 +84,7 @@ xfs_trans_attr(
xfs_fsblock_t firstblock = NULLFSBLOCK;
struct xfs_buf *leaf_bp = NULL;
- error = xfs_attr_args_init(&args, ip, name, flags);
+ error = xfs_attr_args_init(&args, ip, name, name_len, flags);
if (error)
goto out;
diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c
index 0594db4..bc742aa 100644
--- a/fs/xfs/xfs_xattr.c
+++ b/fs/xfs/xfs_xattr.c
@@ -38,6 +38,7 @@ xfs_xattr_get(const struct xattr_handler *handler, struct dentry *unused,
int xflags = handler->flags;
struct xfs_inode *ip = XFS_I(inode);
int error, asize = size;
+ size_t namelen = strlen(name);
/* Convert Linux syscall to XFS internal ATTR flags */
if (!size) {
@@ -45,7 +46,7 @@ xfs_xattr_get(const struct xattr_handler *handler, struct dentry *unused,
value = NULL;
}
- error = xfs_attr_get(ip, (unsigned char *)name, value, &asize, xflags);
+ error = xfs_attr_get(ip, name, namelen, value, &asize, xflags);
if (error)
return error;
return asize;
@@ -81,6 +82,7 @@ xfs_xattr_set(const struct xattr_handler *handler, struct dentry *unused,
int xflags = handler->flags;
struct xfs_inode *ip = XFS_I(inode);
int error;
+ size_t namelen = strlen(name);
/* Convert Linux syscall to XFS internal ATTR flags */
if (flags & XATTR_CREATE)
@@ -89,9 +91,9 @@ xfs_xattr_set(const struct xattr_handler *handler, struct dentry *unused,
xflags |= ATTR_REPLACE;
if (!value)
- return xfs_attr_remove(ip, (unsigned char *)name, xflags);
- error = xfs_attr_set(ip, (unsigned char *)name,
- (void *)value, size, xflags);
+ return xfs_attr_remove(ip, name,
+ namelen, xflags);
+ error = xfs_attr_set(ip, name, namelen, (void *)value, size, xflags);
if (!error)
xfs_forget_acl(inode, name, xflags);
--
2.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
