x509asn1.c,x509asn1.h: new module to support ASN.1/X509 parsing & info extract

Use from qssl backend

1 files changed, 129 insertions, 0 deletions

diff --git a/lib/x509asn1.h b/lib/x509asn1.h
new file mode 100644
index 000000000..8eabf8b0b
--- /dev/null
+++ b/lib/x509asn1.h
@@ -0,0 +1,129 @@
+#ifndef HEADER_CURL_X509ASN1_H
+#define HEADER_CURL_X509ASN1_H
+
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+
+#if defined(USE_QSOSSL)
+
+#include "urldata.h"
+
+/*
+ * Constants.
+ */
+
+/* ASN.1 classes. */
+#define CURL_ASN1_UNIVERSAL             0
+#define CURL_ASN1_APPLICATION           1
+#define CURL_ASN1_CONTEXT_SPECIFIC      2
+#define CURL_ASN1_PRIVATE               3
+
+/* ASN.1 types. */
+#define CURL_ASN1_BOOLEAN               1
+#define CURL_ASN1_INTEGER               2
+#define CURL_ASN1_BIT_STRING            3
+#define CURL_ASN1_OCTET_STRING          4
+#define CURL_ASN1_NULL                  5
+#define CURL_ASN1_OBJECT_IDENTIFIER     6
+#define CURL_ASN1_OBJECT_DESCRIPTOR     7
+#define CURL_ASN1_INSTANCE_OF           8
+#define CURL_ASN1_REAL                  9
+#define CURL_ASN1_ENUMERATED            10
+#define CURL_ASN1_EMBEDDED              11
+#define CURL_ASN1_UTF8_STRING           12
+#define CURL_ASN1_RELATIVE_OID          13
+#define CURL_ASN1_SEQUENCE              16
+#define CURL_ASN1_SET                   17
+#define CURL_ASN1_NUMERIC_STRING        18
+#define CURL_ASN1_PRINTABLE_STRING      19
+#define CURL_ASN1_TELETEX_STRING        20
+#define CURL_ASN1_VIDEOTEX_STRING       21
+#define CURL_ASN1_IA5_STRING            22
+#define CURL_ASN1_UTC_TIME              23
+#define CURL_ASN1_GENERALIZED_TIME      24
+#define CURL_ASN1_GRAPHIC_STRING        25
+#define CURL_ASN1_VISIBLE_STRING        26
+#define CURL_ASN1_GENERAL_STRING        27
+#define CURL_ASN1_UNIVERSAL_STRING      28
+#define CURL_ASN1_CHARACTER_STRING      29
+#define CURL_ASN1_BMP_STRING            30
+
+
+/*
+ * Types.
+ */
+
+/* ASN.1 parsed element. */
+typedef struct {
+  const char *  beg;            /* Pointer to element data. */
+  const char *  end;            /* Pointer to 1st byte after element data. */
+  unsigned char class;          /* ASN.1 element class. */
+  unsigned char tag;            /* ASN.1 element tag. */
+  bool          constructed;    /* Element is constructed. */
+}  curl_asn1Element;
+
+
+/* ASN.1 OID table entry. */
+typedef struct {
+  const char *  numoid;         /* Dotted-numeric OID. */
+  const char *  textoid;        /* OID name. */
+}  curl_OID;
+
+
+/* X509 certificate: RFC 5280. */
+typedef struct {
+  curl_asn1Element      certificate;
+  curl_asn1Element      version;
+  curl_asn1Element      serialNumber;
+  curl_asn1Element      signatureAlgorithm;
+  curl_asn1Element      signature;
+  curl_asn1Element      issuer;
+  curl_asn1Element      notBefore;
+  curl_asn1Element      notAfter;
+  curl_asn1Element      subject;
+  curl_asn1Element      subjectPublicKeyAlgorithm;
+  curl_asn1Element      subjectPublicKey;
+  curl_asn1Element      issuerUniqueID;
+  curl_asn1Element      subjectUniqueID;
+  curl_asn1Element      extensions;
+}  curl_X509certificate;
+
+
+/*
+ * Prototypes.
+ */
+
+const char * Curl_getASN1Element(curl_asn1Element * elem,
+                                 const char * beg, const char * end);
+const char * Curl_ASN1tostr(curl_asn1Element * elem, int type);
+const char * Curl_DNtostr(curl_asn1Element * dn);
+void Curl_parseX509(curl_X509certificate * cert,
+                    const char * beg, const char * end);
+CURLcode Curl_extract_certinfo(struct connectdata * conn, int certnum,
+                               const char * beg, const char * end);
+CURLcode Curl_verifyhost(struct connectdata * conn,
+                         const char * beg, const char * end);
+
+#endif /* USE_QSOSSL */
+#endif /* HEADER_CURL_X509ASN1_H */