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Tue, 07 Apr 2026 13:02:35 -0700 (PDT) From: Justin Suess To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kpsingh@kernel.org, paul@paul-moore.com, mic@digikod.net, viro@zeniv.linux.org.uk, brauner@kernel.org, kees@kernel.org Cc: gnoack@google.com, jack@suse.cz, jmorris@namei.org, serge@hallyn.com, song@kernel.org, yonghong.song@linux.dev, martin.lau@linux.dev, m@maowtm.org, eddyz87@gmail.com, john.fastabend@gmail.com, sdf@fomichev.me, skhan@linuxfoundation.org, bpf@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Justin Suess Subject: [RFC PATCH 11/20] selftests/bpf: Add Landlock kfunc declarations Date: Tue, 7 Apr 2026 16:01:33 -0400 Message-ID: <20260407200157.3874806-12-utilityemal77@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260407200157.3874806-1-utilityemal77@gmail.com> References: <20260407200157.3874806-1-utilityemal77@gmail.com> Precedence: bulk X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Expose the Landlock kfuncs to the BPF selftests. Signed-off-by: Justin Suess --- tools/testing/selftests/bpf/bpf_kfuncs.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h index 7dad01439391..00f2b337a232 100644 --- a/tools/testing/selftests/bpf/bpf_kfuncs.h +++ b/tools/testing/selftests/bpf/bpf_kfuncs.h @@ -79,6 +79,26 @@ extern int bpf_verify_pkcs7_signature(struct bpf_dynptr *data_ptr, struct bpf_dynptr *sig_ptr, struct bpf_key *trusted_keyring) __ksym; +struct bpf_landlock_ruleset; +/* + * Description + * Put a Landlock ruleset obtained from a Landlock ruleset map lookup. + */ + +void bpf_landlock_put_ruleset(const struct bpf_landlock_ruleset *ruleset) + __ksym __weak; +/* + * Description + * Modifies the credential of the passed binary parameters to enforce the + * provided landlock ruleset on the new credentials. The ruleset should + * have been obtained from a Landlock ruleset map lookup. + * Returns + * Error code same as those returned by landlock_restrict_self + */ +int bpf_landlock_restrict_binprm(struct linux_binprm *bprm, + const struct bpf_landlock_ruleset *ruleset, + __u32 flags) __ksym __weak; + struct dentry; /* Description * Returns xattr of a dentry -- 2.53.0