1 files changed, 72 insertions, 0 deletions
diff --git a/lib/libsecureboot/efi/efi_init.c b/lib/libsecureboot/efi/efi_init.c
new file mode 100644
index 000000000000..1078d9bc24ca
--- /dev/null
+++ b/lib/libsecureboot/efi/efi_init.c
@@ -0,0 +1,72 @@
+/*-
+ * Copyright (c) 2019 Stormshield.
+ * Copyright (c) 2019 Semihalf.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+#define NEED_BRSSL_H
+#include "../libsecureboot-priv.h"
+#include <brssl.h>
+
+void
+ve_efi_init(void)
+{
+	br_x509_certificate *xcs;
+	hash_data *digests;
+	size_t num;
+	int result;
+	static int once = 0;
+
+	if (once > 0)
+		return;
+
+	once = 1;
+
+	result = efi_secure_boot_enabled();
+	if (result <= 0)
+		return;
+
+	xcs = efi_get_trusted_certs(&num);
+	if (num > 0 && xcs != NULL) {
+		num = ve_trust_anchors_add(xcs, num);
+		free_certificates(xcs, num);
+	}
+	xcs = efi_get_forbidden_certs(&num);
+	if (num > 0 && xcs != NULL) {
+		num = ve_forbidden_anchors_add(xcs, num);
+		free_certificates(xcs, num);
+	}
+	digests = efi_get_forbidden_digests(&num);
+	if (num > 0 && digests != NULL) {
+		ve_forbidden_digest_add(digests, num);
+		/*
+		 * Don't free the buffors for digests,
+		 * since they are shallow copied.
+		 */
+		xfree(digests);
+	}
+
+	return;
+}