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arc4random.c

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/compat/arc4random.c

Switch to Source code

Preprocessed file

Line Source Count

1 -

2 -

3 -

4 static struct _rs { -

5 size_t rs_have; -

6 size_t rs_count; -

7 } *rs; -

8 -

9 -

10 static struct _rsx { -

11 chacha_ctx rs_chacha; -

12 u_char rs_buf[(16*64)]; -

13 } *rsx; -

14 -

15 static __inline int _rs_allocate(struct _rs **, struct _rsx **); -

16 static __inline void _rs_forkdetect(void); -

17 -

18 static __inline void _rs_rekey(u_char *dat, size_t datlen); -

19 -

20 static __inline void -

21 _rs_init(u_char *buf, size_t n) -

22 { -

if (n < 32 + 8

n < 32 + 8	Description
TRUE	never evaluated
FALSE	evaluated 1302 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

)

0-1302

return;

never executed: return;

25 -

if (rs ==

rs == ((void *)0)	Description
TRUE	evaluated 182 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	evaluated 1120 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

182-1120

((void *)0)

rs == ((void *)0)	Description
TRUE	evaluated 182 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	evaluated 1120 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

182-1120

28 ) { -

if (_rs_allocate(&rs, &rsx) == -1

_rs_allocate(&rs, &rsx) == -1	Description
TRUE	never evaluated
FALSE	evaluated 182 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

)

0-182

abort();

never executed: abort();

}

executed 182 times by 27 tests: end of block

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

182

32 -

33 chacha_keysetup(&rsx->rs_chacha, buf, 32 * 8, 0); -

34 chacha_ivsetup(&rsx->rs_chacha, buf + 32); -

}

executed 1302 times by 27 tests: end of block

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

1302

36 -

37 static void -

38 _rs_stir(void) -

39 { -

40 u_char rnd[32 + 8]; -

41 -

if (getentropy(rnd, sizeof rnd) == -1

getentropy(rnd...eof rnd) == -1	Description
TRUE	never evaluated
FALSE	evaluated 182 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

)

0-182

_getentropy_fail();

never executed: _getentropy_fail();

44 -

if (!rs

!rs	Description
TRUE	evaluated 182 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	never evaluated

)

0-182

_rs_init(rnd, sizeof(rnd));

executed 182 times by 27 tests: _rs_init(rnd, sizeof(rnd));

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

182

47 else -

_rs_rekey(rnd, sizeof(rnd));

never executed: _rs_rekey(rnd, sizeof(rnd));

49 explicit_bzero(rnd, sizeof(rnd)); -

50 -

51 -

52 rs->rs_have = 0; -

53 memset(rsx->rs_buf, 0, sizeof(rsx->rs_buf)); -

54 -

55 rs->rs_count = 1600000; -

}

executed 182 times by 27 tests: end of block

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

182

57 -

58 static __inline void -

59 _rs_stir_if_needed(size_t len) -

60 { -

61 _rs_forkdetect(); -

if (!rs

!rs	Description
TRUE	evaluated 182 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	evaluated 291159 times by 26 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest tlstest ...

|| rs->rs_count <= len

rs->rs_count <= len	Description
TRUE	never evaluated
FALSE	evaluated 291159 times by 26 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest tlstest ...

)

0-291159

_rs_stir();

executed 182 times by 27 tests: _rs_stir();

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

182

if (rs->rs_count <= len

rs->rs_count <= len	Description
TRUE	never evaluated
FALSE	evaluated 291341 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

)

0-291341

rs->rs_count = 0;

never executed: rs->rs_count = 0;

66 else -

rs->rs_count -= len;

executed 291341 times by 27 tests: rs->rs_count -= len;

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

291341

68 } -

69 -

70 static __inline void -

71 _rs_rekey(u_char *dat, size_t datlen) -

72 { -

73 -

74 -

75 -

76 -

77 chacha_encrypt_bytes(&rsx->rs_chacha, rsx->rs_buf, -

78 rsx->rs_buf, sizeof(rsx->rs_buf)); -

79 -

if (dat

dat	Description
TRUE	never evaluated
FALSE	evaluated 1120 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

) {

0-1120

81 size_t i, m; -

82 -

m = ((

(datlen) < (32 + 8)	Description
TRUE	never evaluated
FALSE	never evaluated

datlen) < (32 + 8)

(datlen) < (32 + 8)	Description
TRUE	never evaluated
FALSE	never evaluated

? (datlen) : (32 + 8));

for (i = 0; i < m

i < m	Description
TRUE	never evaluated
FALSE	never evaluated

; i++)

rsx->rs_buf[i] ^= dat[i];

never executed: rsx->rs_buf[i] ^= dat[i];

}

never executed: end of block

87 -

88 _rs_init(rsx->rs_buf, 32 + 8); -

89 memset(rsx->rs_buf, 0, 32 + 8); -

90 rs->rs_have = sizeof(rsx->rs_buf) - 32 - 8; -

}

executed 1120 times by 27 tests: end of block

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

1120

92 -

93 static __inline void -

94 _rs_random_buf(void *_buf, size_t n) -

95 { -

96 u_char *buf = (u_char *)_buf; -

97 u_char *keystream; -

98 size_t m; -

99 -

100 _rs_stir_if_needed(n); -

101

while (n > 0

n > 0	Description
TRUE	evaluated 283802 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	evaluated 283140 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

) {

283140-283802

102

if (rs->rs_have > 0

rs->rs_have > 0	Description
TRUE	evaluated 283623 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	evaluated 179 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

) {

179-283623

103

m = ((

(n) < (rs->rs_have)	Description
TRUE	evaluated 282717 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	evaluated 906 times by 19 tests Evaluated by: arc4randomforktest bntest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont randtest rsa_test servertest ssl_versions ssltest timingsafe tlsexttest tlstest

n) < (rs->rs_have)

(n) < (rs->rs_have)	Description
TRUE	evaluated 282717 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	evaluated 906 times by 19 tests Evaluated by: arc4randomforktest bntest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont randtest rsa_test servertest ssl_versions ssltest timingsafe tlsexttest tlstest

? (n) : (rs->rs_have));

906-282717

104 keystream = rsx->rs_buf + sizeof(rsx->rs_buf) -

105 - rs->rs_have; -

106 memcpy(buf, keystream, m); -

107 memset(keystream, 0, m); -

108 buf += m; -

109 n -= m; -

110 rs->rs_have -= m; -

111

}

executed 283623 times by 27 tests: end of block

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

283623

112

if (rs->rs_have == 0

rs->rs_have == 0	Description
TRUE	evaluated 1085 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...
FALSE	evaluated 282717 times by 27 tests Evaluated by: arc4randomforktest bntest cipher_list cipherstest clienttest configtest dhtest dsatest ecdhtest ecdsatest ectest exptest igetest libcrypto.so.44.0.1 mont pkcs7test randtest rsa_test servertest ssl_versions ssltest timingsafe tls_ext_alpn tls_prf tlsexttest ...

)

1085-282717

113

_rs_rekey(

executed 1085 times by 27 tests: _rs_rekey( ((void *)0) , 0);

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

1085

114

((void *)0)

executed 1085 times by 27 tests: _rs_rekey( ((void *)0) , 0);

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

1085

115

, 0);

executed 1085 times by 27 tests: _rs_rekey( ((void *)0) , 0);

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

1085

116

}

executed 283802 times by 27 tests: end of block

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

283802

117

}

executed 283140 times by 27 tests: end of block

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

283140

118 -

119 static __inline void -

120 _rs_random_u32(uint32_t *val) -

121 { -

122 u_char *keystream; -

123 -

124 _rs_stir_if_needed(sizeof(*val)); -

125

if (rs->rs_have < sizeof(*val)

rs->rs_have < sizeof(*val)	Description
TRUE	evaluated 35 times by 1 test Evaluated by: arc4randomforktest
FALSE	evaluated 8166 times by 4 tests Evaluated by: arc4randomforktest configtest tlstest verifytest

)

35-8166

126

_rs_rekey(

executed 35 times by 1 test: _rs_rekey( ((void *)0) , 0);

Executed by:

arc4randomforktest

127

((void *)0)

executed 35 times by 1 test: _rs_rekey( ((void *)0) , 0);

Executed by:

arc4randomforktest

128

, 0);

executed 35 times by 1 test: _rs_rekey( ((void *)0) , 0);

Executed by:

arc4randomforktest

129 keystream = rsx->rs_buf + sizeof(rsx->rs_buf) - rs->rs_have; -

130 memcpy(val, keystream, sizeof(*val)); -

131 memset(keystream, 0, sizeof(*val)); -

132 rs->rs_have -= sizeof(*val); -

133

}

executed 8201 times by 4 tests: end of block

Executed by:

arc4randomforktest
configtest
tlstest
verifytest

8201

134 -

135 uint32_t -

136 arc4random(void) -

137 { -

138 uint32_t val; -

139 -

140 pthread_mutex_lock(&arc4random_mtx); -

141 _rs_random_u32(&val); -

142 pthread_mutex_unlock(&arc4random_mtx); -

143

return

executed 8201 times by 4 tests: return val;

Executed by:

arc4randomforktest
configtest
tlstest
verifytest

val;

executed 8201 times by 4 tests: return val;

Executed by:

arc4randomforktest
configtest
tlstest
verifytest

8201

144 } -

145 -

146 void -

147 arc4random_buf(void *buf, size_t n) -

148 { -

149 pthread_mutex_lock(&arc4random_mtx); -

150 _rs_random_buf(buf, n); -

151 pthread_mutex_unlock(&arc4random_mtx); -

152

}

executed 283140 times by 27 tests: end of block

Executed by:

arc4randomforktest
bntest
cipher_list
cipherstest
clienttest
configtest
dhtest
dsatest
ecdhtest
ecdsatest
ectest
exptest
igetest
libcrypto.so.44.0.1
mont
pkcs7test
randtest
rsa_test
servertest
ssl_versions
ssltest
timingsafe
tls_ext_alpn
tls_prf
tlsexttest
...

283140

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