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annotate common/certhelp.h @ 1374:1bf288d17857

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author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 24 Nov 2014 16:46:21 +0100
parents 265583011f24
children
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1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8 #ifndef CERTHELP_H
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9 #define CERTHELP_H
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10
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11 /* Polarssl mh.h contains a conversion which gcc warns about */
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12 #ifndef __clang__
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13 #pragma GCC diagnostic ignored "-Wsign-conversion"
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14 #pragma GCC diagnostic ignored "-Wconversion"
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15 #endif
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16 #include <polarssl/oid.h>
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17 #include <polarssl/x509_crt.h>
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18 #ifndef __clang__
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19 #pragma GCC diagnostic pop
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20 #pragma GCC diagnostic pop
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21 #endif
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22
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23 #define CERT_OID_CN (unsigned char *)OID_AT_CN "\0"
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24 #define CERT_OID_O (unsigned char *)OID_AT_ORGANIZATION "\0"
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25 #define CERT_OID_OU (unsigned char *)OID_AT_ORG_UNIT "\0"
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26 #define CERT_OID_SN (unsigned char *)OID_AT_SERIAL_NUMBER "\0"
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27
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28 #ifdef WIN32
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29 #include <windows.h>
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30 #include <wincrypt.h>
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31 #endif
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32
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33 #ifdef __cplusplus
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34 extern "C" {
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35 #endif
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36
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37 /**
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38 * @file
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39 * @brief Helper functinos to handle and parse X.509 certificates.
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40 *
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41 * Simple helper functions based on PolarSSL.
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42 */
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43
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44 /**
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45 * @brief Extracts value of an gieb OID from an x509_name object.
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46 *
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47 * The value is copyed to an bull byte terminated c-string.
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48 * The caller should free it after use.
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49 * @param[in] namebuf ponter to the x509_name object.
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50 * @param[in] oid the oid to search for.
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51 * @returns the extracted String, or NULL in failure.
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52 */
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53 char *get_oid_valstr(x509_name *namebuf, unsigned char *oid);
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54
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55 /**
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56 * @brief Parse x509 certificate and retrieve specified OID from Subject.
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57 *
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58 * The value is copyed to an bull byte terminated c-string.
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59 * The caller should free it after use.
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60 * @param[in] derdata pointer to certificate in DER format.
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61 * @param[in] derlen length of the DER data.
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62 * @param[in] oid the OID to search for.
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63 * @returns the extracted String, or NULL in failure.
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64 */
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65 char *x509_parse_subject(unsigned char *derdata, size_t derlen,
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66 unsigned char *oid);
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67
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68 #ifdef WIN32
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69 /**
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70 * @brief Parse a X509 ASN encoded base64 encoded certificate.
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71 *
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72 * This function creates a Windows cert contect for the certificate
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73 * encoded in b64_data. The new certificate has to be freed with
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74 * CertFreeCertificateContext.
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75 *
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76 * @param[in] b64_data pointer to the certificate data.
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77 * @param[in] b64_size sizeof the the data. (Without terminating \0)
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78 *
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79 * @returns NULL on error.
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80 */
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81 PCCERT_CONTEXT b64_to_cert_context(char *b64_data, size_t b64_size);
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82 #endif
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83
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84 #ifdef __cplusplus
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85 }
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86 #endif
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87
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88 #endif
http://wald.intevation.org/projects/trustbridge/