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1 /* pk7_attr.c */ |
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2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL |
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3 * project 2001. |
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4 */ |
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5 /* ==================================================================== |
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6 * Copyright (c) 2001-2004 The OpenSSL Project. All rights reserved. |
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7 * |
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8 * Redistribution and use in source and binary forms, with or without |
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9 * modification, are permitted provided that the following conditions |
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10 * are met: |
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11 * |
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12 * 1. Redistributions of source code must retain the above copyright |
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13 * notice, this list of conditions and the following disclaimer. |
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14 * |
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15 * 2. Redistributions in binary form must reproduce the above copyright |
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16 * notice, this list of conditions and the following disclaimer in |
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17 * the documentation and/or other materials provided with the |
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18 * distribution. |
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19 * |
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20 * 3. All advertising materials mentioning features or use of this |
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21 * software must display the following acknowledgment: |
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22 * "This product includes software developed by the OpenSSL Project |
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23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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24 * |
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25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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26 * endorse or promote products derived from this software without |
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27 * prior written permission. For written permission, please contact |
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28 * licensing@OpenSSL.org. |
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29 * |
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30 * 5. Products derived from this software may not be called "OpenSSL" |
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31 * nor may "OpenSSL" appear in their names without prior written |
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32 * permission of the OpenSSL Project. |
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33 * |
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34 * 6. Redistributions of any form whatsoever must retain the following |
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35 * acknowledgment: |
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36 * "This product includes software developed by the OpenSSL Project |
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37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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38 * |
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39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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50 * OF THE POSSIBILITY OF SUCH DAMAGE. |
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51 * ==================================================================== |
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52 * |
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53 * This product includes cryptographic software written by Eric Young |
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54 * (eay@cryptsoft.com). This product includes software written by Tim |
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55 * Hudson (tjh@cryptsoft.com). |
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56 * |
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57 */ |
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58 |
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59 #include <stdio.h> |
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60 #include <stdlib.h> |
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61 #include <openssl/bio.h> |
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62 #include <openssl/asn1.h> |
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63 #include <openssl/pem.h> |
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64 #include <openssl/pkcs7.h> |
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65 #include <openssl/x509.h> |
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66 #include <openssl/err.h> |
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67 |
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68 EXPORT_C int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si, STACK_OF(X509_ALGOR) *cap) |
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69 { |
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70 ASN1_STRING *seq; |
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71 unsigned char *p, *pp; |
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72 int len; |
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73 len=i2d_ASN1_SET_OF_X509_ALGOR(cap,NULL,i2d_X509_ALGOR, |
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74 V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL, |
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75 IS_SEQUENCE); |
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76 if(!(pp=(unsigned char *)OPENSSL_malloc(len))) { |
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77 PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE); |
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78 return 0; |
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79 } |
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80 p=pp; |
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81 i2d_ASN1_SET_OF_X509_ALGOR(cap,&p,i2d_X509_ALGOR, V_ASN1_SEQUENCE, |
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82 V_ASN1_UNIVERSAL, IS_SEQUENCE); |
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83 if(!(seq = ASN1_STRING_new())) { |
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84 PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE); |
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85 return 0; |
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86 } |
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87 if(!ASN1_STRING_set (seq, pp, len)) { |
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88 PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE); |
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89 return 0; |
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90 } |
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91 OPENSSL_free (pp); |
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92 return PKCS7_add_signed_attribute(si, NID_SMIMECapabilities, |
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93 V_ASN1_SEQUENCE, seq); |
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94 } |
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95 |
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96 EXPORT_C STACK_OF(X509_ALGOR) *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si) |
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97 { |
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98 ASN1_TYPE *cap; |
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99 const unsigned char *p; |
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100 |
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101 cap = PKCS7_get_signed_attribute(si, NID_SMIMECapabilities); |
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102 if (!cap || (cap->type != V_ASN1_SEQUENCE)) |
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103 return NULL; |
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104 p = cap->value.sequence->data; |
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105 return d2i_ASN1_SET_OF_X509_ALGOR(NULL, &p, |
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106 cap->value.sequence->length, |
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107 d2i_X509_ALGOR, X509_ALGOR_free, |
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108 V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL); |
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109 } |
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110 |
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111 /* Basic smime-capabilities OID and optional integer arg */ |
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112 EXPORT_C int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg) |
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113 { |
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114 X509_ALGOR *alg; |
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115 |
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116 if(!(alg = X509_ALGOR_new())) { |
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117 PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE); |
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118 return 0; |
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119 } |
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120 ASN1_OBJECT_free(alg->algorithm); |
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121 alg->algorithm = OBJ_nid2obj (nid); |
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122 if (arg > 0) { |
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123 ASN1_INTEGER *nbit; |
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124 if(!(alg->parameter = ASN1_TYPE_new())) { |
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125 PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE); |
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126 return 0; |
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127 } |
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128 if(!(nbit = ASN1_INTEGER_new())) { |
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129 PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE); |
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130 return 0; |
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131 } |
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132 if(!ASN1_INTEGER_set (nbit, arg)) { |
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133 PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE); |
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134 return 0; |
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135 } |
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136 alg->parameter->value.integer = nbit; |
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137 alg->parameter->type = V_ASN1_INTEGER; |
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138 } |
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139 sk_X509_ALGOR_push (sk, alg); |
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140 return 1; |
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141 } |