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wincng: make sure algorithm providers are closed once (#496)

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This commit is contained in:
Marc Hoersken
2020-07-06 21:22:20 +02:00
parent 1a61d0c3ca
commit 1894b30b5c
1 changed files with 92 additions and 30 deletions
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122
src/wincng.c
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@@ -225,35 +225,70 @@ _libssh2_wincng_init(void)
{ {
int ret; int ret;
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgRNG, memset(&_libssh2_wincng, 0, sizeof(_libssh2_wincng));
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgRNG,
BCRYPT_RNG_ALGORITHM, NULL, 0); BCRYPT_RNG_ALGORITHM, NULL, 0);
if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgRNG = NULL;
}
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHashMD5, ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHashMD5,
BCRYPT_MD5_ALGORITHM, NULL, 0); BCRYPT_MD5_ALGORITHM, NULL, 0);
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHashSHA1, if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgHashMD5 = NULL;
}
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHashSHA1,
BCRYPT_SHA1_ALGORITHM, NULL, 0); BCRYPT_SHA1_ALGORITHM, NULL, 0);
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHashSHA256, if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgHashSHA1 = NULL;
}
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHashSHA256,
BCRYPT_SHA256_ALGORITHM, NULL, 0); BCRYPT_SHA256_ALGORITHM, NULL, 0);
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHashSHA512, if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgHashSHA256 = NULL;
}
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHashSHA512,
BCRYPT_SHA512_ALGORITHM, NULL, 0); BCRYPT_SHA512_ALGORITHM, NULL, 0);
if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgHashSHA512 = NULL;
}
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHmacMD5, ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHmacMD5,
BCRYPT_MD5_ALGORITHM, NULL, BCRYPT_MD5_ALGORITHM, NULL,
BCRYPT_ALG_HANDLE_HMAC_FLAG); BCRYPT_ALG_HANDLE_HMAC_FLAG);
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHmacSHA1, if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgHmacMD5 = NULL;
}
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHmacSHA1,
BCRYPT_SHA1_ALGORITHM, NULL, BCRYPT_SHA1_ALGORITHM, NULL,
BCRYPT_ALG_HANDLE_HMAC_FLAG); BCRYPT_ALG_HANDLE_HMAC_FLAG);
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHmacSHA256, if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgHmacSHA1 = NULL;
}
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHmacSHA256,
BCRYPT_SHA256_ALGORITHM, NULL, BCRYPT_SHA256_ALGORITHM, NULL,
BCRYPT_ALG_HANDLE_HMAC_FLAG); BCRYPT_ALG_HANDLE_HMAC_FLAG);
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHmacSHA512, if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgHmacSHA256 = NULL;
}
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgHmacSHA512,
BCRYPT_SHA512_ALGORITHM, NULL, BCRYPT_SHA512_ALGORITHM, NULL,
BCRYPT_ALG_HANDLE_HMAC_FLAG); BCRYPT_ALG_HANDLE_HMAC_FLAG);
if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgHmacSHA512 = NULL;
}
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgRSA, ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgRSA,
BCRYPT_RSA_ALGORITHM, NULL, 0); BCRYPT_RSA_ALGORITHM, NULL, 0);
(void)BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgDSA, if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgRSA = NULL;
}
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgDSA,
BCRYPT_DSA_ALGORITHM, NULL, 0); BCRYPT_DSA_ALGORITHM, NULL, 0);
if(!BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgDSA = NULL;
}
ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgAES_CBC, ret = BCryptOpenAlgorithmProvider(&_libssh2_wincng.hAlgAES_CBC,
BCRYPT_AES_ALGORITHM, NULL, 0); BCRYPT_AES_ALGORITHM, NULL, 0);
@@ -263,7 +298,10 @@ _libssh2_wincng_init(void)
(PBYTE)BCRYPT_CHAIN_MODE_CBC, (PBYTE)BCRYPT_CHAIN_MODE_CBC,
sizeof(BCRYPT_CHAIN_MODE_CBC), 0); sizeof(BCRYPT_CHAIN_MODE_CBC), 0);
if(!BCRYPT_SUCCESS(ret)) { if(!BCRYPT_SUCCESS(ret)) {
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgAES_CBC, 0); ret = BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgAES_CBC, 0);
if(BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgAES_CBC = NULL;
}
} }
} }
@@ -275,7 +313,10 @@ _libssh2_wincng_init(void)
(PBYTE)BCRYPT_CHAIN_MODE_ECB, (PBYTE)BCRYPT_CHAIN_MODE_ECB,
sizeof(BCRYPT_CHAIN_MODE_ECB), 0); sizeof(BCRYPT_CHAIN_MODE_ECB), 0);
if(!BCRYPT_SUCCESS(ret)) { if(!BCRYPT_SUCCESS(ret)) {
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgAES_ECB, 0); ret = BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgAES_ECB, 0);
if(BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgAES_ECB = NULL;
}
} }
} }
@@ -287,7 +328,10 @@ _libssh2_wincng_init(void)
(PBYTE)BCRYPT_CHAIN_MODE_NA, (PBYTE)BCRYPT_CHAIN_MODE_NA,
sizeof(BCRYPT_CHAIN_MODE_NA), 0); sizeof(BCRYPT_CHAIN_MODE_NA), 0);
if(!BCRYPT_SUCCESS(ret)) { if(!BCRYPT_SUCCESS(ret)) {
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgRC4_NA, 0); ret = BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgRC4_NA, 0);
if(BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlgRC4_NA = NULL;
}
} }
} }
@@ -299,8 +343,11 @@ _libssh2_wincng_init(void)
(PBYTE)BCRYPT_CHAIN_MODE_CBC, (PBYTE)BCRYPT_CHAIN_MODE_CBC,
sizeof(BCRYPT_CHAIN_MODE_CBC), 0); sizeof(BCRYPT_CHAIN_MODE_CBC), 0);
if(!BCRYPT_SUCCESS(ret)) { if(!BCRYPT_SUCCESS(ret)) {
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlg3DES_CBC, ret = BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlg3DES_CBC,
0); 0);
if(BCRYPT_SUCCESS(ret)) {
_libssh2_wincng.hAlg3DES_CBC = NULL;
}
} }
} }
@@ -314,21 +361,36 @@ _libssh2_wincng_init(void)
void void
_libssh2_wincng_free(void) _libssh2_wincng_free(void)
{ {
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgRNG, 0); if(_libssh2_wincng.hAlgRNG)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHashMD5, 0); (void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgRNG, 0);
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHashSHA1, 0); if(_libssh2_wincng.hAlgHashMD5)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHashSHA256, 0); (void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHashMD5, 0);
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHashSHA512, 0); if(_libssh2_wincng.hAlgHashSHA1)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHmacMD5, 0); (void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHashSHA1, 0);
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHmacSHA1, 0); if(_libssh2_wincng.hAlgHashSHA256)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHmacSHA256, 0); (void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHashSHA256, 0);
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHmacSHA512, 0); if(_libssh2_wincng.hAlgHashSHA512)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgRSA, 0); (void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHashSHA512, 0);
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgDSA, 0); if(_libssh2_wincng.hAlgHmacMD5)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgAES_CBC, 0); (void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHmacMD5, 0);
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgRC4_NA, 0); if(_libssh2_wincng.hAlgHmacSHA1)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlg3DES_CBC, 0); (void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHmacSHA1, 0);
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgDH, 0); if(_libssh2_wincng.hAlgHmacSHA256)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHmacSHA256, 0);
if(_libssh2_wincng.hAlgHmacSHA512)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgHmacSHA512, 0);
if(_libssh2_wincng.hAlgRSA)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgRSA, 0);
if(_libssh2_wincng.hAlgDSA)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgDSA, 0);
if(_libssh2_wincng.hAlgAES_CBC)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgAES_CBC, 0);
if(_libssh2_wincng.hAlgRC4_NA)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgRC4_NA, 0);
if(_libssh2_wincng.hAlg3DES_CBC)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlg3DES_CBC, 0);
if(_libssh2_wincng.hAlgDH)
(void)BCryptCloseAlgorithmProvider(_libssh2_wincng.hAlgDH, 0);
memset(&_libssh2_wincng, 0, sizeof(_libssh2_wincng)); memset(&_libssh2_wincng, 0, sizeof(_libssh2_wincng));
} }