[PATCH v3] security: selinux: allow per-file labeling for bpffs

[PATCH v3] security: selinux: allow per-file labeling for bpffs

[Steven Moreland]

From: Connor O'Brien <connoro@google.com>

Add support for genfscon per-file labeling of bpffs files. This allows
for separate permissions for different pinned bpf objects, which may
be completely unrelated to each other.

Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: Steven Moreland <smoreland@google.com>
---
 security/selinux/hooks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index d9e8b2131a65..18f8cd47729c 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -699,6 +699,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 	if (!strcmp(sb->s_type->name, "debugfs") ||
 	    !strcmp(sb->s_type->name, "tracefs") ||
 	    !strcmp(sb->s_type->name, "binderfs") ||
+	    !strcmp(sb->s_type->name, "bpf") ||
 	    !strcmp(sb->s_type->name, "pstore"))
 		sbsec->flags |= SE_SBGENFS;
 
-- 
2.25.0.341.g760bfbb309-goog

v2 -> v3
- on selinux next branch (instead of master)

Re: [PATCH v3] security: selinux: allow per-file labeling for bpffs

[Stephen Smalley]

On 2/7/20 1:01 PM, Steven Moreland wrote:
> From: Connor O'Brien <connoro@google.com>
> 
> Add support for genfscon per-file labeling of bpffs files. This allows
> for separate permissions for different pinned bpf objects, which may
> be completely unrelated to each other.
> 
> Signed-off-by: Connor O'Brien <connoro@google.com>
> Signed-off-by: Steven Moreland <smoreland@google.com>

Acked-by: Stephen Smalley <sds@tycho.nsa.gov>

> ---
>   security/selinux/hooks.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
> index d9e8b2131a65..18f8cd47729c 100644
> --- a/security/selinux/hooks.c
> +++ b/security/selinux/hooks.c
> @@ -699,6 +699,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
>   	if (!strcmp(sb->s_type->name, "debugfs") ||
>   	    !strcmp(sb->s_type->name, "tracefs") ||
>   	    !strcmp(sb->s_type->name, "binderfs") ||
> +	    !strcmp(sb->s_type->name, "bpf") ||
>   	    !strcmp(sb->s_type->name, "pstore"))
>   		sbsec->flags |= SE_SBGENFS;
>   
> 

Re: [PATCH v3] security: selinux: allow per-file labeling for bpffs

[Paul Moore]

On Fri, Feb 7, 2020 at 1:02 PM Steven Moreland <smoreland@google.com> wrote:
>
> From: Connor O'Brien <connoro@google.com>
>
> Add support for genfscon per-file labeling of bpffs files. This allows
> for separate permissions for different pinned bpf objects, which may
> be completely unrelated to each other.
>
> Signed-off-by: Connor O'Brien <connoro@google.com>
> Signed-off-by: Steven Moreland <smoreland@google.com>
> ---
>  security/selinux/hooks.c | 1 +
>  1 file changed, 1 insertion(+)

Merged into selinux/next, thanks.

-- 
paul moore
www.paul-moore.com