1 files changed, 59 insertions, 0 deletions
diff --git a/lib/libsecureboot/vesigned.c b/lib/libsecureboot/vesigned.c
new file mode 100644
index 000000000000..4015923eabfd
--- /dev/null
+++ b/lib/libsecureboot/vesigned.c
@@ -0,0 +1,59 @@
+/*-
+ * Copyright (c) 2018, Juniper Networks, Inc.
+ *
+ * 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 COPYRIGHT
+ * OWNER OR CONTRIBUTORS 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>
+#include <libsecureboot.h>
+
+#include <vse.h>
+
+/**
+ * @brief
+ * verify signed file
+ *
+ * We look for a signature using the extensions
+ * recorded in signature_exts.
+ * If we find a match we pass it to a suitable verify method.
+ *
+ * @return content of verified file or NULL on error.
+ */
+unsigned char *
+verify_signed(const char *filename, int flags)
+{
+	struct stat st;
+	char buf[MAXPATHLEN];
+	const char **se;
+
+	for (se = signature_exts; *se; se++) {
+		snprintf(buf, sizeof(buf), "%s.%s", filename, *se);
+		if (stat(buf, &st) < 0 || !S_ISREG(st.st_mode))
+			continue;
+		DEBUG_PRINTF(5, ("verify_signed: %s\n", buf));
+#ifdef VE_OPENPGP_SUPPORT
+		if (strncmp(*se, "asc", 3) == 0)
+			return (verify_asc(buf, flags));
+#endif
+		return (verify_sig(buf, flags));
+	}
+	return (NULL);
+}