mirror of
https://gitlab.com/apparmor/apparmor.git
synced 2025-03-04 16:35:02 +01:00
98 lines
3.4 KiB
Diff
98 lines
3.4 KiB
Diff
Pass struct vfsmount to the inode_unlink LSM hook
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Signed-off-by: Tony Jones <tonyj@suse.de>
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Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
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Index: b/fs/namei.c
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===================================================================
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--- a/fs/namei.c
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+++ b/fs/namei.c
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@@ -2102,7 +2102,7 @@ int vfs_unlink(struct inode *dir, struct
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if (d_mountpoint(dentry))
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error = -EBUSY;
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else {
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- error = security_inode_unlink(dir, dentry);
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+ error = security_inode_unlink(dir, dentry, mnt);
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if (!error)
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error = dir->i_op->unlink(dir, dentry);
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}
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Index: b/include/linux/security.h
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===================================================================
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--- a/include/linux/security.h
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+++ b/include/linux/security.h
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@@ -298,6 +298,7 @@ struct request_sock;
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* Check the permission to remove a hard link to a file.
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* @dir contains the inode structure of parent directory of the file.
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* @dentry contains the dentry structure for file to be unlinked.
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+ * @mnt is the vfsmount corresponding to @dentry (may be NULL).
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* Return 0 if permission is granted.
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* @inode_symlink:
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* Check the permission to create a symbolic link to a file.
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@@ -1218,7 +1219,8 @@ struct security_operations {
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int (*inode_link) (struct dentry *old_dentry, struct vfsmount *old_mnt,
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struct inode *dir, struct dentry *new_dentry,
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struct vfsmount *new_mnt);
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- int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
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+ int (*inode_unlink) (struct inode *dir, struct dentry *dentry,
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+ struct vfsmount *mnt);
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int (*inode_symlink) (struct inode *dir, struct dentry *dentry,
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struct vfsmount *mnt, const char *old_name);
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int (*inode_mkdir) (struct inode *dir, struct dentry *dentry,
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@@ -1645,11 +1647,12 @@ static inline int security_inode_link (s
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}
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static inline int security_inode_unlink (struct inode *dir,
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- struct dentry *dentry)
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+ struct dentry *dentry,
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+ struct vfsmount *mnt)
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{
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if (unlikely (IS_PRIVATE (dentry->d_inode)))
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return 0;
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- return security_ops->inode_unlink (dir, dentry);
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+ return security_ops->inode_unlink (dir, dentry, mnt);
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}
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static inline int security_inode_symlink (struct inode *dir,
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@@ -2377,7 +2380,8 @@ static inline int security_inode_link (s
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}
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static inline int security_inode_unlink (struct inode *dir,
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- struct dentry *dentry)
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+ struct dentry *dentry,
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+ struct vfsmount *mnt)
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{
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return 0;
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}
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Index: b/security/dummy.c
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===================================================================
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--- a/security/dummy.c
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+++ b/security/dummy.c
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@@ -278,7 +278,8 @@ static int dummy_inode_link (struct dent
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return 0;
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}
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-static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry)
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+static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry,
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+ struct vfsmount *mnt)
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{
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return 0;
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}
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Index: b/security/selinux/hooks.c
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===================================================================
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--- a/security/selinux/hooks.c
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+++ b/security/selinux/hooks.c
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@@ -2199,11 +2199,12 @@ static int selinux_inode_link(struct den
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return may_link(dir, old_dentry, MAY_LINK);
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}
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-static int selinux_inode_unlink(struct inode *dir, struct dentry *dentry)
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+static int selinux_inode_unlink(struct inode *dir, struct dentry *dentry,
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+ struct vfsmount *mnt)
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{
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int rc;
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- rc = secondary_ops->inode_unlink(dir, dentry);
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+ rc = secondary_ops->inode_unlink(dir, dentry, mnt);
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if (rc)
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return rc;
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return may_link(dir, dentry, MAY_UNLINK);
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