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securityfs: add the ability to support symlinks

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Signed-off-by: John Johansen <john.johansen@canonical.com>
Reviewed-by: Seth Arnold <seth.arnold@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
John Johansen
2017-05-07 05:53:37 -07:00
parent 4227c333f6
commit 6623ec7c4d
2 changed files with 135 additions and 21 deletions
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12
include/linux/security.h
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@@ -1651,6 +1651,10 @@ extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
struct dentry *parent, void *data,
const struct file_operations *fops);
extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
struct dentry *securityfs_create_symlink(const char *name,
struct dentry *parent,
const char *target,
const struct inode_operations *iops);
extern void securityfs_remove(struct dentry *dentry);
#else /* CONFIG_SECURITYFS */
@@ -1670,6 +1674,14 @@ static inline struct dentry *securityfs_create_file(const char *name,
return ERR_PTR(-ENODEV);
}
static inline struct dentry *securityfs_create_symlink(const char *name,
struct dentry *parent,
const char *target,
const struct inode_operations *iops)
{
return ERR_PTR(-ENODEV);
}
static inline void securityfs_remove(struct dentry *dentry)
{}