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Diffstat (limited to 'openssl-1.1.0h/crypto/x509/x_req.c')
-rw-r--r--openssl-1.1.0h/crypto/x509/x_req.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/x509/x_req.c b/openssl-1.1.0h/crypto/x509/x_req.c
new file mode 100644
index 0000000..c2da95a
--- /dev/null
+++ b/openssl-1.1.0h/crypto/x509/x_req.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/x509.h>
+#include "internal/x509_int.h"
+
+/*-
+ * X509_REQ_INFO is handled in an unusual way to get round
+ * invalid encodings. Some broken certificate requests don't
+ * encode the attributes field if it is empty. This is in
+ * violation of PKCS#10 but we need to tolerate it. We do
+ * this by making the attributes field OPTIONAL then using
+ * the callback to initialise it to an empty STACK.
+ *
+ * This means that the field will be correctly encoded unless
+ * we NULL out the field.
+ *
+ * As a result we no longer need the req_kludge field because
+ * the information is now contained in the attributes field:
+ * 1. If it is NULL then it's the invalid omission.
+ * 2. If it is empty it is the correct encoding.
+ * 3. If it is not empty then some attributes are present.
+ *
+ */
+
+static int rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ void *exarg)
+{
+ X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval;
+
+ if (operation == ASN1_OP_NEW_POST) {
+ rinf->attributes = sk_X509_ATTRIBUTE_new_null();
+ if (!rinf->attributes)
+ return 0;
+ }
+ return 1;
+}
+
+ASN1_SEQUENCE_enc(X509_REQ_INFO, enc, rinf_cb) = {
+ ASN1_SIMPLE(X509_REQ_INFO, version, ASN1_INTEGER),
+ ASN1_SIMPLE(X509_REQ_INFO, subject, X509_NAME),
+ ASN1_SIMPLE(X509_REQ_INFO, pubkey, X509_PUBKEY),
+ /* This isn't really OPTIONAL but it gets round invalid
+ * encodings
+ */
+ ASN1_IMP_SET_OF_OPT(X509_REQ_INFO, attributes, X509_ATTRIBUTE, 0)
+} ASN1_SEQUENCE_END_enc(X509_REQ_INFO, X509_REQ_INFO)
+
+IMPLEMENT_ASN1_FUNCTIONS(X509_REQ_INFO)
+
+ASN1_SEQUENCE_ref(X509_REQ, 0) = {
+ ASN1_EMBED(X509_REQ, req_info, X509_REQ_INFO),
+ ASN1_EMBED(X509_REQ, sig_alg, X509_ALGOR),
+ ASN1_SIMPLE(X509_REQ, signature, ASN1_BIT_STRING)
+} ASN1_SEQUENCE_END_ref(X509_REQ, X509_REQ)
+
+IMPLEMENT_ASN1_FUNCTIONS(X509_REQ)
+
+IMPLEMENT_ASN1_DUP_FUNCTION(X509_REQ)