Re: [PATCH v10 24/27] ima: Introduce securityfs file to activate an IMA namespace

From: Stefan Berger
Date: Wed Feb 23 2022 - 17:31:13 EST



On 2/23/22 12:12, Mimi Zohar wrote:
On Wed, 2022-02-23 at 12:08 -0500, Stefan Berger wrote:
On 2/23/22 08:54, Mimi Zohar wrote:
On Tue, 2022-02-01 at 15:37 -0500, Stefan Berger wrote:

int ima_fs_ns_init(struct user_namespace *user_ns, struct dentry *root)
{
struct ima_namespace *ns = ima_ns_from_user_ns(user_ns);
@@ -531,6 +596,12 @@ int ima_fs_ns_init(struct user_namespace *user_ns, struct dentry *root)
}
}
+ if (ns != &init_ima_ns) {
+ ret = ima_fs_add_ns_files(ima_dir);
+ if (ret)
+ goto out;
+ }
+
In all other cases, the securityfs files are directly created in
ima_fs_ns_init(). What is different about "active" that a new
function is defined?

It was meant as a function to create namespace-specific files, if more
were to come along. I can move the code from ima_fs_add_ns_files() into
this function if you want.
Perhaps defer defining a new function until that happens.

I moved the code out of this function into ima_fs_ns_init() now.