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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	crypto/crypto_dsa.cc	Lines:	50	74	67.6 %
Date:	2022-08-28 04:20:35	Branches:	23	54	42.6 %


#include "crypto/crypto_dsa.h"
#include "crypto/crypto_keys.h"
#include "crypto/crypto_util.h"
#include "async_wrap-inl.h"
#include "env-inl.h"
#include "memory_tracker-inl.h"
#include "threadpoolwork-inl.h"
#include "v8.h"

#include <openssl/bn.h>
#include <openssl/dsa.h>

#include <cstdio>

namespace node {

using v8::FunctionCallbackInfo;
using v8::Int32;
using v8::Just;
using v8::Local;
using v8::Maybe;
using v8::Nothing;
using v8::Number;
using v8::Object;
using v8::Uint32;
using v8::Value;

namespace crypto {
EVPKeyCtxPointer DsaKeyGenTraits::Setup(DsaKeyPairGenConfig* params) {
  EVPKeyCtxPointer param_ctx(EVP_PKEY_CTX_new_id(EVP_PKEY_DSA, nullptr));
  EVP_PKEY* raw_params = nullptr;

  if (!param_ctx ||
      EVP_PKEY_paramgen_init(param_ctx.get()) <= 0 ||
      EVP_PKEY_CTX_set_dsa_paramgen_bits(
          param_ctx.get(),
          params->params.modulus_bits) <= 0) {
    return EVPKeyCtxPointer();
  }

  if (params->params.divisor_bits != -1) {
    if (EVP_PKEY_CTX_ctrl(
            param_ctx.get(),
            EVP_PKEY_DSA,
            EVP_PKEY_OP_PARAMGEN,
            EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS,
            params->params.divisor_bits,
            nullptr) <= 0) {
      return EVPKeyCtxPointer();
    }
  }

  if (EVP_PKEY_paramgen(param_ctx.get(), &raw_params) <= 0)
    return EVPKeyCtxPointer();

  EVPKeyPointer key_params(raw_params);
  EVPKeyCtxPointer key_ctx(EVP_PKEY_CTX_new(key_params.get(), nullptr));

  if (!key_ctx || EVP_PKEY_keygen_init(key_ctx.get()) <= 0)
    return EVPKeyCtxPointer();

  return key_ctx;
}

// Input arguments for DsaKeyPairGenJob
//   1. CryptoJobMode
//   2. Modulus Bits
//   3. Divisor Bits
//   4. Public Format
//   5. Public Type
//   6. Private Format
//   7. Private Type
//   8. Cipher
//   9. Passphrase
Maybe<bool> DsaKeyGenTraits::AdditionalConfig(
    CryptoJobMode mode,
    const FunctionCallbackInfo<Value>& args,
    unsigned int* offset,
    DsaKeyPairGenConfig* params) {
  Environment* env = Environment::GetCurrent(args);
  CHECK(args[*offset]->IsUint32());  // modulus bits
  CHECK(args[*offset + 1]->IsInt32());  // divisor bits

  params->params.modulus_bits = args[*offset].As<Uint32>()->Value();
  params->params.divisor_bits = args[*offset + 1].As<Int32>()->Value();
  if (params->params.divisor_bits < -1) {
    THROW_ERR_OUT_OF_RANGE(env, "invalid value for divisor_bits");
    return Nothing<bool>();
  }

  *offset += 2;

  return Just(true);
}

Maybe<bool> DSAKeyExportTraits::AdditionalConfig(
    const FunctionCallbackInfo<Value>& args,
    unsigned int offset,
    DSAKeyExportConfig* params) {
  return Just(true);
}

WebCryptoKeyExportStatus DSAKeyExportTraits::DoExport(
    std::shared_ptr<KeyObjectData> key_data,
    WebCryptoKeyFormat format,
    const DSAKeyExportConfig& params,
    ByteSource* out) {
  CHECK_NE(key_data->GetKeyType(), kKeyTypeSecret);

  switch (format) {
    case kWebCryptoKeyFormatRaw:
      // Not supported for RSA keys of either type
      return WebCryptoKeyExportStatus::FAILED;
    case kWebCryptoKeyFormatPKCS8:
      if (key_data->GetKeyType() != kKeyTypePrivate)
        return WebCryptoKeyExportStatus::INVALID_KEY_TYPE;
      return PKEY_PKCS8_Export(key_data.get(), out);
    case kWebCryptoKeyFormatSPKI:
      if (key_data->GetKeyType() != kKeyTypePublic)
        return WebCryptoKeyExportStatus::INVALID_KEY_TYPE;
      return PKEY_SPKI_Export(key_data.get(), out);
    default:
      UNREACHABLE();
  }
}

Maybe<bool> GetDsaKeyDetail(
    Environment* env,
    std::shared_ptr<KeyObjectData> key,
    Local<Object> target) {
  const BIGNUM* p;  // Modulus length
  const BIGNUM* q;  // Divisor length

  ManagedEVPPKey m_pkey = key->GetAsymmetricKey();
  Mutex::ScopedLock lock(*m_pkey.mutex());
  int type = EVP_PKEY_id(m_pkey.get());
  CHECK(type == EVP_PKEY_DSA);

  const DSA* dsa = EVP_PKEY_get0_DSA(m_pkey.get());
  CHECK_NOT_NULL(dsa);

  DSA_get0_pqg(dsa, &p, &q, nullptr);

  size_t modulus_length = BN_num_bytes(p) * CHAR_BIT;
  size_t divisor_length = BN_num_bytes(q) * CHAR_BIT;

  if (target
          ->Set(
              env->context(),
              env->modulus_length_string(),
              Number::New(env->isolate(), static_cast<double>(modulus_length)))
          .IsNothing() ||
      target
          ->Set(
              env->context(),
              env->divisor_length_string(),
              Number::New(env->isolate(), static_cast<double>(divisor_length)))
          .IsNothing()) {
    return Nothing<bool>();
  }

  return Just(true);
}

namespace DSAAlg {
void Initialize(Environment* env, Local<Object> target) {
  DsaKeyPairGenJob::Initialize(env, target);
  DSAKeyExportJob::Initialize(env, target);
}

void RegisterExternalReferences(ExternalReferenceRegistry* registry) {
  DsaKeyPairGenJob::RegisterExternalReferences(registry);
  DSAKeyExportJob::RegisterExternalReferences(registry);
}
}  // namespace DSAAlg
}  // namespace crypto
}  // namespace node


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#include "crypto/crypto_dsa.h"
2			#include "crypto/crypto_keys.h"
3			#include "crypto/crypto_util.h"
4			#include "async_wrap-inl.h"
5			#include "env-inl.h"
6			#include "memory_tracker-inl.h"
7			#include "threadpoolwork-inl.h"
8			#include "v8.h"
9
10			#include <openssl/bn.h>
11			#include <openssl/dsa.h>
12
13			#include <cstdio>
14
15			namespace node {
16
17			using v8::FunctionCallbackInfo;
18			using v8::Int32;
19			using v8::Just;
20			using v8::Local;
21			using v8::Maybe;
22			using v8::Nothing;
23			using v8::Number;
24			using v8::Object;
25			using v8::Uint32;
26			using v8::Value;
27
28			namespace crypto {
29		3	EVPKeyCtxPointer DsaKeyGenTraits::Setup(DsaKeyPairGenConfig* params) {
30		6	EVPKeyCtxPointer param_ctx(EVP_PKEY_CTX_new_id(EVP_PKEY_DSA, nullptr));
31		3	EVP_PKEY* raw_params = nullptr;
32
33	✓✗	6	if (!param_ctx \|\|
34	✓✗✗✓ ✗✓	6	EVP_PKEY_paramgen_init(param_ctx.get()) <= 0 \|\|
35		3	EVP_PKEY_CTX_set_dsa_paramgen_bits(
36			param_ctx.get(),
37		3	params->params.modulus_bits) <= 0) {
38			return EVPKeyCtxPointer();
39			}
40
41	✓✓	3	if (params->params.divisor_bits != -1) {
42		2	if (EVP_PKEY_CTX_ctrl(
43			param_ctx.get(),
44			EVP_PKEY_DSA,
45			EVP_PKEY_OP_PARAMGEN,
46			EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS,
47			params->params.divisor_bits,
48	✗✓	2	nullptr) <= 0) {
49			return EVPKeyCtxPointer();
50			}
51			}
52
53	✗✓	3	if (EVP_PKEY_paramgen(param_ctx.get(), &raw_params) <= 0)
54			return EVPKeyCtxPointer();
55
56		6	EVPKeyPointer key_params(raw_params);
57		6	EVPKeyCtxPointer key_ctx(EVP_PKEY_CTX_new(key_params.get(), nullptr));
58
59	✓✗✗✓ ✗✓	3	if (!key_ctx \|\| EVP_PKEY_keygen_init(key_ctx.get()) <= 0)
60			return EVPKeyCtxPointer();
61
62		3	return key_ctx;
63			}
64
65			// Input arguments for DsaKeyPairGenJob
66			// 1. CryptoJobMode
67			// 2. Modulus Bits
68			// 3. Divisor Bits
69			// 4. Public Format
70			// 5. Public Type
71			// 6. Private Format
72			// 7. Private Type
73			// 8. Cipher
74			// 9. Passphrase
75		3	Maybe<bool> DsaKeyGenTraits::AdditionalConfig(
76			CryptoJobMode mode,
77			const FunctionCallbackInfo<Value>& args,
78			unsigned int* offset,
79			DsaKeyPairGenConfig* params) {
80		3	Environment* env = Environment::GetCurrent(args);
81	✓✗✗✓	6	CHECK(args[*offset]->IsUint32()); // modulus bits
82	✓✗✗✓	6	CHECK(args[*offset + 1]->IsInt32()); // divisor bits
83
84	✓✗	9	params->params.modulus_bits = args[*offset].As<Uint32>()->Value();
85	✓✗	9	params->params.divisor_bits = args[*offset + 1].As<Int32>()->Value();
86	✗✓	3	if (params->params.divisor_bits < -1) {
87			THROW_ERR_OUT_OF_RANGE(env, "invalid value for divisor_bits");
88			return Nothing<bool>();
89			}
90
91		3	*offset += 2;
92
93		3	return Just(true);
94			}
95
96			Maybe<bool> DSAKeyExportTraits::AdditionalConfig(
97			const FunctionCallbackInfo<Value>& args,
98			unsigned int offset,
99			DSAKeyExportConfig* params) {
100			return Just(true);
101			}
102
103			WebCryptoKeyExportStatus DSAKeyExportTraits::DoExport(
104			std::shared_ptr<KeyObjectData> key_data,
105			WebCryptoKeyFormat format,
106			const DSAKeyExportConfig& params,
107			ByteSource* out) {
108			CHECK_NE(key_data->GetKeyType(), kKeyTypeSecret);
109
110			switch (format) {
111			case kWebCryptoKeyFormatRaw:
112			// Not supported for RSA keys of either type
113			return WebCryptoKeyExportStatus::FAILED;
114			case kWebCryptoKeyFormatPKCS8:
115			if (key_data->GetKeyType() != kKeyTypePrivate)
116			return WebCryptoKeyExportStatus::INVALID_KEY_TYPE;
117			return PKEY_PKCS8_Export(key_data.get(), out);
118			case kWebCryptoKeyFormatSPKI:
119			if (key_data->GetKeyType() != kKeyTypePublic)
120			return WebCryptoKeyExportStatus::INVALID_KEY_TYPE;
121			return PKEY_SPKI_Export(key_data.get(), out);
122			default:
123			UNREACHABLE();
124			}
125			}
126
127		2	Maybe<bool> GetDsaKeyDetail(
128			Environment* env,
129			std::shared_ptr<KeyObjectData> key,
130			Local<Object> target) {
131			const BIGNUM* p; // Modulus length
132			const BIGNUM* q; // Divisor length
133
134		4	ManagedEVPPKey m_pkey = key->GetAsymmetricKey();
135		4	Mutex::ScopedLock lock(*m_pkey.mutex());
136		2	int type = EVP_PKEY_id(m_pkey.get());
137	✗✓	2	CHECK(type == EVP_PKEY_DSA);
138
139		2	const DSA* dsa = EVP_PKEY_get0_DSA(m_pkey.get());
140	✗✓	2	CHECK_NOT_NULL(dsa);
141
142		2	DSA_get0_pqg(dsa, &p, &q, nullptr);
143
144		2	size_t modulus_length = BN_num_bytes(p) * CHAR_BIT;
145		2	size_t divisor_length = BN_num_bytes(q) * CHAR_BIT;
146
147		2	if (target
148		2	->Set(
149			env->context(),
150			env->modulus_length_string(),
151		6	Number::New(env->isolate(), static_cast<double>(modulus_length)))
152	✓✗	4	.IsNothing() \|\|
153			target
154		2	->Set(
155			env->context(),
156			env->divisor_length_string(),
157	✗✓	8	Number::New(env->isolate(), static_cast<double>(divisor_length)))
158	✗✓	2	.IsNothing()) {
159			return Nothing<bool>();
160			}
161
162		2	return Just(true);
163			}
164
165			namespace DSAAlg {
166		775	void Initialize(Environment* env, Local<Object> target) {
167		775	DsaKeyPairGenJob::Initialize(env, target);
168		775	DSAKeyExportJob::Initialize(env, target);
169		775	}
170
171		5378	void RegisterExternalReferences(ExternalReferenceRegistry* registry) {
172		5378	DsaKeyPairGenJob::RegisterExternalReferences(registry);
173		5378	DSAKeyExportJob::RegisterExternalReferences(registry);
174		5378	}
175			} // namespace DSAAlg
176			} // namespace crypto
177			} // namespace node