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CRED: Pass credentials through dentry_open()

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Pass credentials through dentry_open() so that the COW creds patch can have
SELinux's flush_unauthorized_files() pass the appropriate creds back to itself
when it opens its null chardev.

The security_dentry_open() call also now takes a creds pointer, as does the
dentry_open hook in struct security_operations.

Signed-off-by: David Howells <[email protected]>
Acked-by: James Morris <[email protected]>
Signed-off-by: James Morris <[email protected]>
This commit is contained in:
David Howells 2008-11-14 10:39:22 +11:00 • committed by James Morris
commit 745ca2475a
19 changed files with 67 additions and 40 deletions
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6
fs/hppfs/hppfs.c
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@ -426,6 +426,7 @@ static int file_mode(int fmode)
static int hppfs_open(struct inode *inode, struct file *file)
{
const struct cred *cred = current_cred();
struct hppfs_private *data;
struct vfsmount *proc_mnt;
struct dentry *proc_dentry;
@ -446,7 +447,7 @@ static int hppfs_open(struct inode *inode, struct file *file)
/* XXX This isn't closed anywhere */
data->proc_file = dentry_open(dget(proc_dentry), mntget(proc_mnt),
file_mode(file->f_mode));
file_mode(file->f_mode), cred);
err = PTR_ERR(data->proc_file);
if (IS_ERR(data->proc_file))
goto out_free1;
@ -489,6 +490,7 @@ static int hppfs_open(struct inode *inode, struct file *file)
static int hppfs_dir_open(struct inode *inode, struct file *file)
{
const struct cred *cred = current_cred();
struct hppfs_private *data;
struct vfsmount *proc_mnt;
struct dentry *proc_dentry;
@ -502,7 +504,7 @@ static int hppfs_dir_open(struct inode *inode, struct file *file)
proc_dentry = HPPFS_I(inode)->proc_dentry;
proc_mnt = inode->i_sb->s_fs_info;
data->proc_file = dentry_open(dget(proc_dentry), mntget(proc_mnt),
file_mode(file->f_mode));
file_mode(file->f_mode), cred);
err = PTR_ERR(data->proc_file);
if (IS_ERR(data->proc_file))
goto out_free;