19012754211

Committed 02 Nov 2025 01:10PM UTC coverage: 90.677% (+0.006%) from 90.671%

Build # 19012754211

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github

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web-flow

Commit Message

Merge pull request #5137 from randombit/jack/clang-tidy-includes

Remove various unused includes flagged by clang-tidy misc-include-cleaner

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100457 of 110786 relevant lines covered (90.68%)

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97.1

/src/lib/modes/cipher_mode.cpp

/*
* Cipher Modes
* (C) 2015 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/cipher_mode.h>

#include <botan/internal/parsing.h>
#include <botan/internal/scan_name.h>
#include <botan/internal/stream_mode.h>
#include <memory>
#include <sstream>
#include <utility>

#if defined(BOTAN_HAS_BLOCK_CIPHER)
   #include <botan/block_cipher.h>
#endif

#if defined(BOTAN_HAS_AEAD_MODES)
   #include <botan/aead.h>
#endif

#if defined(BOTAN_HAS_MODE_CBC)
   #include <botan/internal/cbc.h>
#endif

#if defined(BOTAN_HAS_MODE_CFB)
   #include <botan/internal/cfb.h>
#endif

#if defined(BOTAN_HAS_MODE_XTS)
   #include <botan/internal/xts.h>
#endif

#if defined(BOTAN_HAS_COMMONCRYPTO)
   #include <botan/internal/commoncrypto.h>
#endif

namespace Botan {

std::unique_ptr<Cipher_Mode> Cipher_Mode::create_or_throw(std::string_view algo,
                                                          Cipher_Dir direction,
                                                          std::string_view provider) {
   if(auto mode = Cipher_Mode::create(algo, direction, provider)) {
      return mode;
   }

   throw Lookup_Error("Cipher mode", algo, provider);
}

std::unique_ptr<Cipher_Mode> Cipher_Mode::create(std::string_view algo,
                                                 Cipher_Dir direction,
                                                 std::string_view provider) {
#if defined(BOTAN_HAS_COMMONCRYPTO)
   if(provider.empty() || provider == "commoncrypto") {
      if(auto cm = make_commoncrypto_cipher_mode(algo, direction))
         return cm;

      if(!provider.empty())
         return nullptr;
   }
#endif

   if(provider != "base" && !provider.empty()) {
      return nullptr;
   }

#if defined(BOTAN_HAS_STREAM_CIPHER)
   if(auto sc = StreamCipher::create(algo)) {
      return std::make_unique<Stream_Cipher_Mode>(std::move(sc));
   }
#endif

#if defined(BOTAN_HAS_AEAD_MODES)
   if(auto aead = AEAD_Mode::create(algo, direction)) {
      return aead;
   }
#endif

   if(algo.find('/') != std::string::npos) {
      const std::vector<std::string> algo_parts = split_on(algo, '/');
      std::string_view cipher_name = algo_parts[0];
      const std::vector<std::string> mode_info = parse_algorithm_name(algo_parts[1]);

      if(mode_info.empty()) {
         return std::unique_ptr<Cipher_Mode>();
      }

      std::ostringstream mode_name;

      mode_name << mode_info[0] << '(' << cipher_name;
      for(size_t i = 1; i < mode_info.size(); ++i) {
         mode_name << ',' << mode_info[i];
      }
      for(size_t i = 2; i < algo_parts.size(); ++i) {
         mode_name << ',' << algo_parts[i];
      }
      mode_name << ')';

      return Cipher_Mode::create(mode_name.str(), direction, provider);
   }

#if defined(BOTAN_HAS_BLOCK_CIPHER)

   SCAN_Name spec(algo);

   if(spec.arg_count() == 0) {
      return std::unique_ptr<Cipher_Mode>();
   }

   auto bc = BlockCipher::create(spec.arg(0), provider);

   if(!bc) {
      return std::unique_ptr<Cipher_Mode>();
   }

   #if defined(BOTAN_HAS_MODE_CBC)
   if(spec.algo_name() == "CBC") {
      const std::string padding = spec.arg(1, "PKCS7");

      if(padding == "CTS") {
         if(direction == Cipher_Dir::Encryption) {
            return std::make_unique<CTS_Encryption>(std::move(bc));
         } else {
            return std::make_unique<CTS_Decryption>(std::move(bc));
         }
      } else {
         auto pad = BlockCipherModePaddingMethod::create(padding);

         if(pad) {
            if(direction == Cipher_Dir::Encryption) {
               return std::make_unique<CBC_Encryption>(std::move(bc), std::move(pad));
            } else {
               return std::make_unique<CBC_Decryption>(std::move(bc), std::move(pad));
            }
         }
      }
   }
   #endif

   #if defined(BOTAN_HAS_MODE_XTS)
   if(spec.algo_name() == "XTS") {
      if(direction == Cipher_Dir::Encryption) {
         return std::make_unique<XTS_Encryption>(std::move(bc));
      } else {
         return std::make_unique<XTS_Decryption>(std::move(bc));
      }
   }
   #endif

   #if defined(BOTAN_HAS_MODE_CFB)
   if(spec.algo_name() == "CFB") {
      const size_t feedback_bits = spec.arg_as_integer(1, 8 * bc->block_size());
      if(direction == Cipher_Dir::Encryption) {
         return std::make_unique<CFB_Encryption>(std::move(bc), feedback_bits);
      } else {
         return std::make_unique<CFB_Decryption>(std::move(bc), feedback_bits);
      }
   }
   #endif

#endif

   return std::unique_ptr<Cipher_Mode>();
}

//static
std::vector<std::string> Cipher_Mode::providers(std::string_view algo_spec) {
   const std::vector<std::string>& possible = {"base", "commoncrypto"};
   std::vector<std::string> providers;
   for(auto&& prov : possible) {
      auto mode = Cipher_Mode::create(algo_spec, Cipher_Dir::Encryption, prov);
      if(mode) {
         providers.push_back(prov);  // available
      }
   }
   return providers;
}

}  // namespace Botan

1	/*
2	* Cipher Modes
3	* (C) 2015 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/cipher_mode.h>
9
10	#include <botan/internal/parsing.h>
11	#include <botan/internal/scan_name.h>
12	#include <botan/internal/stream_mode.h>
13	#include <memory>
14	#include <sstream>
15	#include <utility>
16
17	#if defined(BOTAN_HAS_BLOCK_CIPHER)
18	#include <botan/block_cipher.h>
19	#endif
20
21	#if defined(BOTAN_HAS_AEAD_MODES)
22	#include <botan/aead.h>
23	#endif
24
25	#if defined(BOTAN_HAS_MODE_CBC)
26	#include <botan/internal/cbc.h>
27	#endif
28
29	#if defined(BOTAN_HAS_MODE_CFB)
30	#include <botan/internal/cfb.h>
31	#endif
32
33	#if defined(BOTAN_HAS_MODE_XTS)
34	#include <botan/internal/xts.h>
35	#endif
36
37	#if defined(BOTAN_HAS_COMMONCRYPTO)
38	#include <botan/internal/commoncrypto.h>
39	#endif
40
41	namespace Botan {
42
43	std::unique_ptr<Cipher_Mode> Cipher_Mode::create_or_throw(std::string_view algo,	163✔
44	Cipher_Dir direction,
45	std::string_view provider) {
46	if(auto mode = Cipher_Mode::create(algo, direction, provider)) {	163✔
47	return mode;	162✔
48	}	162✔
49
50	throw Lookup_Error("Cipher mode", algo, provider);	1✔
51	}
52
53	std::unique_ptr<Cipher_Mode> Cipher_Mode::create(std::string_view algo,	20,418✔
54	Cipher_Dir direction,
55	std::string_view provider) {
56	#if defined(BOTAN_HAS_COMMONCRYPTO)
57	if(provider.empty() \|\| provider == "commoncrypto") {
58	if(auto cm = make_commoncrypto_cipher_mode(algo, direction))
59	return cm;
60
61	if(!provider.empty())
62	return nullptr;
63	}
64	#endif
65
66	if(provider != "base" && !provider.empty()) {	27,888✔
67	return nullptr;	1,249✔
68	}
69
70	#if defined(BOTAN_HAS_STREAM_CIPHER)
71	if(auto sc = StreamCipher::create(algo)) {	19,169✔
72	return std::make_unique<Stream_Cipher_Mode>(std::move(sc));	51✔
73	}	51✔
74	#endif
75
76	#if defined(BOTAN_HAS_AEAD_MODES)
77	if(auto aead = AEAD_Mode::create(algo, direction)) {	19,118✔
78	return aead;	3,863✔
79	}	3,863✔
80	#endif
81
82	if(algo.find('/') != std::string::npos) {	15,255✔
83	const std::vector<std::string> algo_parts = split_on(algo, '/');	7,494✔
84	std::string_view cipher_name = algo_parts[0];	7,494✔
85	const std::vector<std::string> mode_info = parse_algorithm_name(algo_parts[1]);	7,494✔
86
87	if(mode_info.empty()) {	7,494✔
88	return std::unique_ptr<Cipher_Mode>();	×
89	}
90
91	std::ostringstream mode_name;	7,494✔
92
93	mode_name << mode_info[0] << '(' << cipher_name;	7,494✔
94	for(size_t i = 1; i < mode_info.size(); ++i) {	7,726✔
95	mode_name << ',' << mode_info[i];	232✔
96	}
97	for(size_t i = 2; i < algo_parts.size(); ++i) {	9,158✔
98	mode_name << ',' << algo_parts[i];	1,664✔
99	}
100	mode_name << ')';	7,494✔
101
102	return Cipher_Mode::create(mode_name.str(), direction, provider);	7,494✔
103	}	7,494✔
104
105	#if defined(BOTAN_HAS_BLOCK_CIPHER)
106
107	SCAN_Name spec(algo);	7,761✔
108
109	if(spec.arg_count() == 0) {	7,761✔
110	return std::unique_ptr<Cipher_Mode>();	1✔
111	}
112
113	auto bc = BlockCipher::create(spec.arg(0), provider);	7,760✔
114
115	if(!bc) {	7,760✔
116	return std::unique_ptr<Cipher_Mode>();	2✔
117	}
118
119	#if defined(BOTAN_HAS_MODE_CBC)
120	if(spec.algo_name() == "CBC") {	7,758✔
121	const std::string padding = spec.arg(1, "PKCS7");	2,878✔
122
123	if(padding == "CTS") {	2,878✔
124	if(direction == Cipher_Dir::Encryption) {	240✔
125	return std::make_unique<CTS_Encryption>(std::move(bc));	144✔
126	} else {
127	return std::make_unique<CTS_Decryption>(std::move(bc));	96✔
128	}
129	} else {
130	auto pad = BlockCipherModePaddingMethod::create(padding);	2,638✔
131
132	if(pad) {	2,638✔
133	if(direction == Cipher_Dir::Encryption) {	2,638✔
134	return std::make_unique<CBC_Encryption>(std::move(bc), std::move(pad));	1,484✔
135	} else {
136	return std::make_unique<CBC_Decryption>(std::move(bc), std::move(pad));	1,154✔
137	}
138	}
139	}	2,638✔
140	}	2,878✔
141	#endif
142
143	#if defined(BOTAN_HAS_MODE_XTS)
144	if(spec.algo_name() == "XTS") {	4,880✔
145	if(direction == Cipher_Dir::Encryption) {	4,175✔
146	return std::make_unique<XTS_Encryption>(std::move(bc));	2,505✔
147	} else {
148	return std::make_unique<XTS_Decryption>(std::move(bc));	1,670✔
149	}
150	}
151	#endif
152
153	#if defined(BOTAN_HAS_MODE_CFB)
154	if(spec.algo_name() == "CFB") {	705✔
155	const size_t feedback_bits = spec.arg_as_integer(1, 8 * bc->block_size());	705✔
156	if(direction == Cipher_Dir::Encryption) {	705✔
157	return std::make_unique<CFB_Encryption>(std::move(bc), feedback_bits);	340✔
158	} else {
159	return std::make_unique<CFB_Decryption>(std::move(bc), feedback_bits);	365✔
160	}
161	}
162	#endif
163
164	#endif
165
166	return std::unique_ptr<Cipher_Mode>();	×
167	}	7,761✔
168
169	//static
170	std::vector<std::string> Cipher_Mode::providers(std::string_view algo_spec) {	1,249✔
171	const std::vector<std::string>& possible = {"base", "commoncrypto"};	1,249✔
172	std::vector<std::string> providers;	1,249✔
173	for(auto&& prov : possible) {	3,747✔
174	auto mode = Cipher_Mode::create(algo_spec, Cipher_Dir::Encryption, prov);	2,498✔
175	if(mode) {	2,498✔
176	providers.push_back(prov); // available	1,247✔
177	}
178	}	2,498✔
179	return providers;	1,249✔
180	}	1,249✔
181
182	} // namespace Botan

randombit / botan / 19012754211

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