5079590438

Committed 25 May 2023 12:28PM UTC coverage: 92.228% (+0.5%) from 91.723%

Build # 5079590438

Build Type

Pull #3502

github

Pull Request Pull Request #3502: Apply clang-format to the codebase

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95.4

/src/lib/ffi/ffi_mp.cpp

/*
* (C) 2015,2017 Jack Lloyd
* (C) 2017 Ribose Inc
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/ffi.h>

#include <botan/numthry.h>
#include <botan/reducer.h>
#include <botan/internal/divide.h>
#include <botan/internal/ffi_mp.h>
#include <botan/internal/ffi_rng.h>
#include <botan/internal/ffi_util.h>

extern "C" {

using namespace Botan_FFI;

int botan_mp_init(botan_mp_t* mp_out) {
   return ffi_guard_thunk(__func__, [=]() -> int {
      if(mp_out == nullptr)
         return BOTAN_FFI_ERROR_NULL_POINTER;

      auto mp = std::make_unique<Botan::BigInt>();
      *mp_out = new botan_mp_struct(std::move(mp));
      return BOTAN_FFI_SUCCESS;
   });
}

int botan_mp_clear(botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.clear(); });
}

int botan_mp_set_from_int(botan_mp_t mp, int initial_value) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt::from_s32(initial_value); });
}

int botan_mp_set_from_str(botan_mp_t mp, const char* str) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt(str); });
}

int botan_mp_set_from_radix_str(botan_mp_t mp, const char* str, size_t radix) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) {
      Botan::BigInt::Base base;
      if(radix == 10)
         base = Botan::BigInt::Decimal;
      else if(radix == 16)
         base = Botan::BigInt::Hexadecimal;
      else
         return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;

      const uint8_t* bytes = Botan::cast_char_ptr_to_uint8(str);
      const size_t len = strlen(str);

      bn = Botan::BigInt(bytes, len, base);
      return BOTAN_FFI_SUCCESS;
   });
}

int botan_mp_set_from_mp(botan_mp_t dest, const botan_mp_t source) {
   return BOTAN_FFI_VISIT(dest, [=](auto& bn) { bn = safe_get(source); });
}

int botan_mp_is_negative(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_negative() ? 1 : 0; });
}

int botan_mp_is_positive(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_positive() ? 1 : 0; });
}

int botan_mp_flip_sign(botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.flip_sign(); });
}

int botan_mp_from_bin(botan_mp_t mp, const uint8_t bin[], size_t bin_len) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn.binary_decode(bin, bin_len); });
}

int botan_mp_to_hex(const botan_mp_t mp, char* out) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) {
      const std::string hex = bn.to_hex_string();
      std::memcpy(out, hex.c_str(), 1 + hex.size());
   });
}

int botan_mp_to_str(const botan_mp_t mp, uint8_t digit_base, char* out, size_t* out_len) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {
      if(digit_base == 0 || digit_base == 10)
         return write_str_output(out, out_len, bn.to_dec_string());
      else if(digit_base == 16)
         return write_str_output(out, out_len, bn.to_hex_string());
      else
         return BOTAN_FFI_ERROR_BAD_PARAMETER;
   });
}

int botan_mp_to_bin(const botan_mp_t mp, uint8_t vec[]) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { bn.binary_encode(vec); });
}

int botan_mp_to_uint32(const botan_mp_t mp, uint32_t* val) {
   if(val == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { *val = bn.to_u32bit(); });
}

int botan_mp_destroy(botan_mp_t mp) { return BOTAN_FFI_CHECKED_DELETE(mp); }

int botan_mp_add(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res += safe_get(y);
      else
         res = safe_get(x) + safe_get(y);
   });
}

int botan_mp_sub(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res -= safe_get(y);
      else
         res = safe_get(x) - safe_get(y);
   });
}

int botan_mp_add_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res += static_cast<Botan::word>(y);
      else
         res = safe_get(x) + static_cast<Botan::word>(y);
   });
}

int botan_mp_sub_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res -= static_cast<Botan::word>(y);
      else
         res = safe_get(x) - static_cast<Botan::word>(y);
   });
}

int botan_mp_mul(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res *= safe_get(y);
      else
         res = safe_get(x) * safe_get(y);
   });
}

int botan_mp_div(botan_mp_t quotient, botan_mp_t remainder, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(quotient, [=](auto& q) {
      Botan::BigInt r;
      Botan::vartime_divide(safe_get(x), safe_get(y), q, r);
      safe_get(remainder) = r;
   });
}

int botan_mp_equal(const botan_mp_t x_w, const botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](const auto& x) -> int { return x == safe_get(y_w); });
}

int botan_mp_is_zero(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_zero(); });
}

int botan_mp_is_odd(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_odd(); });
}

int botan_mp_is_even(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_even(); });
}

int botan_mp_cmp(int* result, const botan_mp_t x_w, const botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](auto& x) { *result = x.cmp(safe_get(y_w)); });
}

int botan_mp_swap(botan_mp_t x_w, botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](auto& x) { x.swap(safe_get(y_w)); });
}

// Return (base^exponent) % modulus
int botan_mp_powmod(botan_mp_t out, const botan_mp_t base, const botan_mp_t exponent, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(
      out, [=](auto& o) { o = Botan::power_mod(safe_get(base), safe_get(exponent), safe_get(modulus)); });
}

int botan_mp_lshift(botan_mp_t out, const botan_mp_t in, size_t shift) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) << shift; });
}

int botan_mp_rshift(botan_mp_t out, const botan_mp_t in, size_t shift) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) >> shift; });
}

int botan_mp_mod_inverse(botan_mp_t out, const botan_mp_t in, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::inverse_mod(safe_get(in), safe_get(modulus)); });
}

int botan_mp_mod_mul(botan_mp_t out, const botan_mp_t x, const botan_mp_t y, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) {
      Botan::Modular_Reducer reducer(safe_get(modulus));
      o = reducer.multiply(safe_get(x), safe_get(y));
   });
}

int botan_mp_rand_bits(botan_mp_t rand_out, botan_rng_t rng, size_t bits) {
   return BOTAN_FFI_VISIT(rng, [=](auto& r) { safe_get(rand_out).randomize(r, bits); });
}

int botan_mp_rand_range(botan_mp_t rand_out, botan_rng_t rng, const botan_mp_t lower, const botan_mp_t upper) {
   return BOTAN_FFI_VISIT(
      rng, [=](auto& r) { safe_get(rand_out) = Botan::BigInt::random_integer(r, safe_get(lower), safe_get(upper)); });
}

int botan_mp_gcd(botan_mp_t out, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::gcd(safe_get(x), safe_get(y)); });
}

int botan_mp_is_prime(const botan_mp_t mp, botan_rng_t rng, size_t test_prob) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { return (Botan::is_prime(n, safe_get(rng), test_prob)) ? 1 : 0; });
}

int botan_mp_get_bit(const botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) -> int { return n.get_bit(bit); });
}

int botan_mp_set_bit(botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.set_bit(bit); });
}

int botan_mp_clear_bit(botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.clear_bit(bit); });
}

int botan_mp_num_bits(const botan_mp_t mp, size_t* bits) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bits = n.bits(); });
}

int botan_mp_num_bytes(const botan_mp_t mp, size_t* bytes) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bytes = n.bytes(); });
}
}

1	/*
2	* (C) 2015,2017 Jack Lloyd
3	* (C) 2017 Ribose Inc
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/ffi.h>
9
10	#include <botan/numthry.h>
11	#include <botan/reducer.h>
12	#include <botan/internal/divide.h>
13	#include <botan/internal/ffi_mp.h>
14	#include <botan/internal/ffi_rng.h>
15	#include <botan/internal/ffi_util.h>
16
17	extern "C" {
18
19	using namespace Botan_FFI;
20
21	int botan_mp_init(botan_mp_t* mp_out) {	133✔
22	return ffi_guard_thunk(__func__, [=]() -> int {	133✔
23	if(mp_out == nullptr)	133✔
24	return BOTAN_FFI_ERROR_NULL_POINTER;
25
26	auto mp = std::make_unique<Botan::BigInt>();	133✔
27	*mp_out = new botan_mp_struct(std::move(mp));	133✔
28	return BOTAN_FFI_SUCCESS;	133✔
29	});	266✔
30	}
31
32	int botan_mp_clear(botan_mp_t mp) {	×
33	return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.clear(); });	×
34	}
35
36	int botan_mp_set_from_int(botan_mp_t mp, int initial_value) {	2✔
37	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt::from_s32(initial_value); });	4✔
38	}
39
40	int botan_mp_set_from_str(botan_mp_t mp, const char* str) {	29✔
41	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt(str); });	58✔
42	}
43
44	int botan_mp_set_from_radix_str(botan_mp_t mp, const char* str, size_t radix) {	4✔
45	return BOTAN_FFI_VISIT(mp, [=](auto& bn) {	10✔
46	Botan::BigInt::Base base;
47	if(radix == 10)
48	base = Botan::BigInt::Decimal;
49	else if(radix == 16)
50	base = Botan::BigInt::Hexadecimal;
51	else
52	return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
53
54	const uint8_t* bytes = Botan::cast_char_ptr_to_uint8(str);
55	const size_t len = strlen(str);
56
57	bn = Botan::BigInt(bytes, len, base);
58	return BOTAN_FFI_SUCCESS;
59	});
60	}
61
62	int botan_mp_set_from_mp(botan_mp_t dest, const botan_mp_t source) {	4✔
63	return BOTAN_FFI_VISIT(dest, [=](auto& bn) { bn = safe_get(source); });	8✔
64	}
65
66	int botan_mp_is_negative(const botan_mp_t mp) {	10✔
67	return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_negative() ? 1 : 0; });	20✔
68	}
69
70	int botan_mp_is_positive(const botan_mp_t mp) {	6✔
71	return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_positive() ? 1 : 0; });	12✔
72	}
73
74	int botan_mp_flip_sign(botan_mp_t mp) {	5✔
75	return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.flip_sign(); });	10✔
76	}
77
78	int botan_mp_from_bin(botan_mp_t mp, const uint8_t bin[], size_t bin_len) {	1✔
79	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn.binary_decode(bin, bin_len); });	2✔
80	}
81
82	int botan_mp_to_hex(const botan_mp_t mp, char* out) {	38✔
83	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) {	76✔
84	const std::string hex = bn.to_hex_string();
85	std::memcpy(out, hex.c_str(), 1 + hex.size());
86	});
87	}
88
89	int botan_mp_to_str(const botan_mp_t mp, uint8_t digit_base, char* out, size_t* out_len) {	14✔
90	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {	33✔
91	if(digit_base == 0 \|\| digit_base == 10)
92	return write_str_output(out, out_len, bn.to_dec_string());
93	else if(digit_base == 16)
94	return write_str_output(out, out_len, bn.to_hex_string());
95	else
96	return BOTAN_FFI_ERROR_BAD_PARAMETER;
97	});
98	}
99
100	int botan_mp_to_bin(const botan_mp_t mp, uint8_t vec[]) {	3✔
101	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { bn.binary_encode(vec); });	6✔
102	}
103
104	int botan_mp_to_uint32(const botan_mp_t mp, uint32_t* val) {	5✔
105	if(val == nullptr) {	5✔
106	return BOTAN_FFI_ERROR_NULL_POINTER;
107	}
108	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { *val = bn.to_u32bit(); });	10✔
109	}
110
111	int botan_mp_destroy(botan_mp_t mp) { return BOTAN_FFI_CHECKED_DELETE(mp); }	133✔
112
113	int botan_mp_add(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	5✔
114	return BOTAN_FFI_VISIT(result, [=](auto& res) {	10✔
115	if(result == x)
116	res += safe_get(y);
117	else
118	res = safe_get(x) + safe_get(y);
119	});
120	}
121
122	int botan_mp_sub(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	1✔
123	return BOTAN_FFI_VISIT(result, [=](auto& res) {	3✔
124	if(result == x)
125	res -= safe_get(y);
126	else
127	res = safe_get(x) - safe_get(y);
128	});
129	}
130
131	int botan_mp_add_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {	2✔
132	return BOTAN_FFI_VISIT(result, [=](auto& res) {	4✔
133	if(result == x)
134	res += static_cast<Botan::word>(y);
135	else
136	res = safe_get(x) + static_cast<Botan::word>(y);
137	});
138	}
139
140	int botan_mp_sub_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {	1✔
141	return BOTAN_FFI_VISIT(result, [=](auto& res) {	2✔
142	if(result == x)
143	res -= static_cast<Botan::word>(y);
144	else
145	res = safe_get(x) - static_cast<Botan::word>(y);
146	});
147	}
148
149	int botan_mp_mul(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	6✔
150	return BOTAN_FFI_VISIT(result, [=](auto& res) {	13✔
151	if(result == x)
152	res *= safe_get(y);
153	else
154	res = safe_get(x) * safe_get(y);
155	});
156	}
157
158	int botan_mp_div(botan_mp_t quotient, botan_mp_t remainder, const botan_mp_t x, const botan_mp_t y) {	2✔
159	return BOTAN_FFI_VISIT(quotient, [=](auto& q) {	6✔
160	Botan::BigInt r;
161	Botan::vartime_divide(safe_get(x), safe_get(y), q, r);
162	safe_get(remainder) = r;
163	});
164	}
165
166	int botan_mp_equal(const botan_mp_t x_w, const botan_mp_t y_w) {	10✔
167	return BOTAN_FFI_VISIT(x_w, [=](const auto& x) -> int { return x == safe_get(y_w); });	20✔
168	}
169
170	int botan_mp_is_zero(const botan_mp_t mp) {	3✔
171	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_zero(); });	6✔
172	}
173
174	int botan_mp_is_odd(const botan_mp_t mp) {	2✔
175	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_odd(); });	4✔
176	}
177
178	int botan_mp_is_even(const botan_mp_t mp) {	2✔
179	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_even(); });	4✔
180	}
181
182	int botan_mp_cmp(int* result, const botan_mp_t x_w, const botan_mp_t y_w) {	38✔
183	return BOTAN_FFI_VISIT(x_w, [=](auto& x) { *result = x.cmp(safe_get(y_w)); });	76✔
184	}
185
186	int botan_mp_swap(botan_mp_t x_w, botan_mp_t y_w) {	×
187	return BOTAN_FFI_VISIT(x_w, [=](auto& x) { x.swap(safe_get(y_w)); });	×
188	}
189
190	// Return (base^exponent) % modulus
191	int botan_mp_powmod(botan_mp_t out, const botan_mp_t base, const botan_mp_t exponent, const botan_mp_t modulus) {	2✔
192	return BOTAN_FFI_VISIT(	4✔
193	out, [=](auto& o) { o = Botan::power_mod(safe_get(base), safe_get(exponent), safe_get(modulus)); });
194	}
195
196	int botan_mp_lshift(botan_mp_t out, const botan_mp_t in, size_t shift) {	2✔
197	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) << shift; });	4✔
198	}
199
200	int botan_mp_rshift(botan_mp_t out, const botan_mp_t in, size_t shift) {	4✔
201	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) >> shift; });	8✔
202	}
203
204	int botan_mp_mod_inverse(botan_mp_t out, const botan_mp_t in, const botan_mp_t modulus) {	2✔
205	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::inverse_mod(safe_get(in), safe_get(modulus)); });	4✔
206	}
207
208	int botan_mp_mod_mul(botan_mp_t out, const botan_mp_t x, const botan_mp_t y, const botan_mp_t modulus) {	2✔
209	return BOTAN_FFI_VISIT(out, [=](auto& o) {	5✔
210	Botan::Modular_Reducer reducer(safe_get(modulus));
211	o = reducer.multiply(safe_get(x), safe_get(y));
212	});
213	}
214
215	int botan_mp_rand_bits(botan_mp_t rand_out, botan_rng_t rng, size_t bits) {	2✔
216	return BOTAN_FFI_VISIT(rng, [=](auto& r) { safe_get(rand_out).randomize(r, bits); });	4✔
217	}
218
219	int botan_mp_rand_range(botan_mp_t rand_out, botan_rng_t rng, const botan_mp_t lower, const botan_mp_t upper) {	10✔
220	return BOTAN_FFI_VISIT(	30✔
221	rng, [=](auto& r) { safe_get(rand_out) = Botan::BigInt::random_integer(r, safe_get(lower), safe_get(upper)); });
222	}
223
224	int botan_mp_gcd(botan_mp_t out, const botan_mp_t x, const botan_mp_t y) {	4✔
225	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::gcd(safe_get(x), safe_get(y)); });	8✔
226	}
227
228	int botan_mp_is_prime(const botan_mp_t mp, botan_rng_t rng, size_t test_prob) {	5✔
229	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { return (Botan::is_prime(n, safe_get(rng), test_prob)) ? 1 : 0; });	10✔
230	}
231
232	int botan_mp_get_bit(const botan_mp_t mp, size_t bit) {	6✔
233	return BOTAN_FFI_VISIT(mp, [=](const auto& n) -> int { return n.get_bit(bit); });	12✔
234	}
235
236	int botan_mp_set_bit(botan_mp_t mp, size_t bit) {	2✔
237	return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.set_bit(bit); });	4✔
238	}
239
240	int botan_mp_clear_bit(botan_mp_t mp, size_t bit) {	2✔
241	return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.clear_bit(bit); });	4✔
242	}
243
244	int botan_mp_num_bits(const botan_mp_t mp, size_t* bits) {	7✔
245	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bits = n.bits(); });	14✔
246	}
247
248	int botan_mp_num_bytes(const botan_mp_t mp, size_t* bytes) {	45✔
249	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bytes = n.bytes(); });	90✔
250	}
251	}

randombit / botan / 5079590438

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