1 files changed, 146 insertions, 0 deletions

diff --git a/src/lib/libtls/tls_keypair.c b/src/lib/libtls/tls_keypair.c
new file mode 100644
index 0000000000..eef92b3b24
--- /dev/null
+++ b/src/lib/libtls/tls_keypair.c
@@ -0,0 +1,146 @@
+/* $OpenBSD: tls_keypair.c,v 1.1 2018/02/08 05:56:49 jsing Exp $ */
+/*
+ * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/pem.h>
+
+#include <tls.h>
+
+#include "tls_internal.h"
+
+struct tls_keypair *
+tls_keypair_new(void)
+{
+        return calloc(1, sizeof(struct tls_keypair));
+}
+
+void
+tls_keypair_clear_key(struct tls_keypair *keypair)
+{
+        freezero(keypair->key_mem, keypair->key_len);
+        keypair->key_mem = NULL;
+        keypair->key_len = 0;
+}
+
+int
+tls_keypair_set_cert_file(struct tls_keypair *keypair, struct tls_error *error,
+    const char *cert_file)
+{
+        return tls_config_load_file(error, "certificate", cert_file,
+            &keypair->cert_mem, &keypair->cert_len);
+}
+
+int
+tls_keypair_set_cert_mem(struct tls_keypair *keypair, const uint8_t *cert,
+    size_t len)
+{
+        return tls_set_mem(&keypair->cert_mem, &keypair->cert_len, cert, len);
+}
+
+int
+tls_keypair_set_key_file(struct tls_keypair *keypair, struct tls_error *error,
+    const char *key_file)
+{
+        tls_keypair_clear_key(keypair);
+        return tls_config_load_file(error, "key", key_file,
+            &keypair->key_mem, &keypair->key_len);
+}
+
+int
+tls_keypair_set_key_mem(struct tls_keypair *keypair, const uint8_t *key,
+    size_t len)
+{
+        tls_keypair_clear_key(keypair);
+        return tls_set_mem(&keypair->key_mem, &keypair->key_len, key, len);
+}
+
+int
+tls_keypair_set_ocsp_staple_file(struct tls_keypair *keypair,
+    struct tls_error *error, const char *ocsp_file)
+{
+        return tls_config_load_file(error, "ocsp", ocsp_file,
+            &keypair->ocsp_staple, &keypair->ocsp_staple_len);
+}
+
+int
+tls_keypair_set_ocsp_staple_mem(struct tls_keypair *keypair,
+    const uint8_t *staple, size_t len)
+{
+        return tls_set_mem(&keypair->ocsp_staple, &keypair->ocsp_staple_len,
+            staple, len);
+}
+
+void
+tls_keypair_clear(struct tls_keypair *keypair)
+{
+        tls_keypair_set_cert_mem(keypair, NULL, 0);
+        tls_keypair_set_key_mem(keypair, NULL, 0);
+}
+
+void
+tls_keypair_free(struct tls_keypair *keypair)
+{
+        if (keypair == NULL)
+                return;
+
+        tls_keypair_clear(keypair);
+
+        free(keypair->cert_mem);
+        free(keypair->key_mem);
+        free(keypair->ocsp_staple);
+        free(keypair->pubkey_hash);
+
+        free(keypair);
+}
+
+int
+tls_keypair_load_cert(struct tls_keypair *keypair, struct tls_error *error,
+    X509 **cert)
+{
+        char *errstr = "unknown";
+        BIO *cert_bio = NULL;
+        int ssl_err;
+        int rv = -1;
+
+        X509_free(*cert);
+        *cert = NULL;
+
+        if (keypair->cert_mem == NULL) {
+                tls_error_set(error, "keypair has no certificate");
+                goto err;
+        }
+        if ((cert_bio = BIO_new_mem_buf(keypair->cert_mem,
+            keypair->cert_len)) == NULL) {
+                tls_error_set(error, "failed to create certificate bio");
+                goto err;
+        }
+        if ((*cert = PEM_read_bio_X509(cert_bio, NULL, tls_password_cb,
+            NULL)) == NULL) {
+                if ((ssl_err = ERR_peek_error()) != 0)
+                    errstr = ERR_error_string(ssl_err, NULL);
+                tls_error_set(error, "failed to load certificate: %s", errstr);
+                goto err;
+        }
+
+        rv = 0;
+
+ err:
+        BIO_free(cert_bio);
+
+        return (rv);
+}