security: selinux: allow per-file labeling for bpffs

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>
Signed-off-by: Paul Moore <paul@paul-moore.com>

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 7c37cdb..44f6f4e 100644 (file)
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -702,6 +702,7 @@ 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;