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dh_asn1.c

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/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/dh/dh_asn1.c

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1 /* $OpenBSD: dh_asn1.c,v 1.10 2016/12/30 15:26:49 jsing Exp $ */ -

2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL -

3 * project 2000. -

4 */ -

5 /* ==================================================================== -

7 * -

8 * Redistribution and use in source and binary forms, with or without -

9 * modification, are permitted provided that the following conditions -

10 * are met: -

11 * -

12 * 1. Redistributions of source code must retain the above copyright -

13 * notice, this list of conditions and the following disclaimer. -

14 * -

15 * 2. Redistributions in binary form must reproduce the above copyright -

16 * notice, this list of conditions and the following disclaimer in -

17 * the documentation and/or other materials provided with the -

18 * distribution. -

19 * -

20 * 3. All advertising materials mentioning features or use of this -

21 * software must display the following acknowledgment: -

22 * "This product includes software developed by the OpenSSL Project -

23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" -

24 * -

25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to -

26 * endorse or promote products derived from this software without -

27 * prior written permission. For written permission, please contact -

28 * licensing@OpenSSL.org. -

29 * -

30 * 5. Products derived from this software may not be called "OpenSSL" -

31 * nor may "OpenSSL" appear in their names without prior written -

32 * permission of the OpenSSL Project. -

33 * -

34 * 6. Redistributions of any form whatsoever must retain the following -

35 * acknowledgment: -

36 * "This product includes software developed by the OpenSSL Project -

37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" -

38 * -

39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY -

40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -

41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -

42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR -

43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -

44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -

45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -

46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -

47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, -

48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -

49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED -

50 * OF THE POSSIBILITY OF SUCH DAMAGE. -

51 * ==================================================================== -

52 * -

53 * This product includes cryptographic software written by Eric Young -

54 * (eay@cryptsoft.com). This product includes software written by Tim -

55 * Hudson (tjh@cryptsoft.com). -

56 * -

57 */ -

58 -

59 #include <stdio.h> -

60 -

61 #include <openssl/asn1t.h> -

62 #include <openssl/bn.h> -

63 #include <openssl/dh.h> -

64 #include <openssl/objects.h> -

65 -

66 /* Override the default free and new methods */ -

67 static int -

68 dh_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg) -

69 { -

if (operation == ASN1_OP_NEW_PRE) {

operation == 0	Description
TRUE	evaluated 140 times by 1 test Evaluated by: ssltest
FALSE	evaluated 700 times by 1 test Evaluated by: ssltest

140-700

71 *pval = (ASN1_VALUE *)DH_new(); -

if (*pval)

*pval	Description
TRUE	evaluated 140 times by 1 test Evaluated by: ssltest
FALSE	never evaluated

0-140

return 2;

executed 140 times by 1 test: return 2;

Executed by:

ssltest

140

return 0;

never executed: return 0;

} else if (operation == ASN1_OP_FREE_PRE) {

operation == 2	Description
TRUE	never evaluated
FALSE	evaluated 700 times by 1 test Evaluated by: ssltest

0-700

76 DH_free((DH *)*pval); -

77 *pval = NULL; -

return 2;

never executed: return 2;

79 } -

return 1;

executed 700 times by 1 test: return 1;

Executed by:

ssltest

700

81 } -

82 -

83 static const ASN1_AUX DHparams_aux = { -

84 .app_data = NULL, -

85 .flags = 0, -

86 .ref_offset = 0, -

87 .ref_lock = 0, -

88 .asn1_cb = dh_cb, -

89 .enc_offset = 0, -

90 }; -

91 static const ASN1_TEMPLATE DHparams_seq_tt[] = { -

92 { -

93 .flags = 0, -

94 .tag = 0, -

95 .offset = offsetof(DH, p), -

96 .field_name = "p", -

97 .item = &BIGNUM_it, -

98 }, -

99 { -

100 .flags = 0, -

101 .tag = 0, -

102 .offset = offsetof(DH, g), -

103 .field_name = "g", -

104 .item = &BIGNUM_it, -

105 }, -

106 { -

107 .flags = ASN1_TFLG_OPTIONAL, -

108 .tag = 0, -

109 .offset = offsetof(DH, length), -

110 .field_name = "length", -

111 .item = &ZLONG_it, -

112 }, -

113 }; -

114 -

115 const ASN1_ITEM DHparams_it = { -

116 .itype = ASN1_ITYPE_SEQUENCE, -

117 .utype = V_ASN1_SEQUENCE, -

118 .templates = DHparams_seq_tt, -

119 .tcount = sizeof(DHparams_seq_tt) / sizeof(ASN1_TEMPLATE), -

120 .funcs = &DHparams_aux, -

121 .size = sizeof(DH), -

122 .sname = "DH", -

123 }; -

124 -

125 -

126 DH * -

127 d2i_DHparams(DH **a, const unsigned char **in, long len) -

128 { -

129

return (DH *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,

never executed: return (DH *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, &DHparams_it);

130

&DHparams_it);

never executed: return (DH *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, &DHparams_it);

131 } -

132 -

133 int -

134 i2d_DHparams(const DH *a, unsigned char **out) -

135 { -

136

return ASN1_item_i2d((ASN1_VALUE *)a, out, &DHparams_it);

never executed: return ASN1_item_i2d((ASN1_VALUE *)a, out, &DHparams_it);

137 } -

138 -

139 DH * -

140 d2i_DHparams_bio(BIO *bp, DH **a) -

141 { -

142

return ASN1_item_d2i_bio(&DHparams_it, bp, a);

never executed: return ASN1_item_d2i_bio(&DHparams_it, bp, a);

143 } -

144 -

145 int -

146 i2d_DHparams_bio(BIO *bp, DH *a) -

147 { -

148

return ASN1_item_i2d_bio(&DHparams_it, bp, a);

never executed: return ASN1_item_i2d_bio(&DHparams_it, bp, a);

149 } -

150 -

151 DH * -

152 d2i_DHparams_fp(FILE *fp, DH **a) -

153 { -

154

return ASN1_item_d2i_fp(&DHparams_it, fp, a);

never executed: return ASN1_item_d2i_fp(&DHparams_it, fp, a);

155 } -

156 -

157 int -

158 i2d_DHparams_fp(FILE *fp, DH *a) -

159 { -

160

return ASN1_item_i2d_fp(&DHparams_it, fp, a);

never executed: return ASN1_item_i2d_fp(&DHparams_it, fp, a);

161 } -

162 -

163 DH * -

164 DHparams_dup(DH *dh) -

165 { -

166

return ASN1_item_dup(&DHparams_it, dh);

executed 140 times by 1 test: return ASN1_item_dup(&DHparams_it, dh);

Executed by:

ssltest

140

167 } -

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