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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include <cert.h> // Must be included before certdb.h | |
| 6 #include <certdb.h> | |
| 7 #include <cryptohi.h> | |
| 8 #include <nss.h> | |
| 9 #include <pk11pub.h> | |
| 10 #include <prerror.h> | |
| 11 #include <secder.h> | |
| 12 #include <secmod.h> | |
| 13 #include <secport.h> | |
| 14 | |
| 15 #include <memory> | |
| 16 | |
| 17 #include "base/debug/leak_annotations.h" | |
| 18 #include "base/logging.h" | |
| 19 #include "base/memory/singleton.h" | |
| 20 #include "base/numerics/safe_conversions.h" | |
| 21 #include "base/pickle.h" | |
| 22 #include "base/strings/stringprintf.h" | |
| 23 #include "crypto/ec_private_key.h" | |
| 24 #include "crypto/nss_util.h" | |
| 25 #include "crypto/nss_util_internal.h" | |
| 26 #include "crypto/rsa_private_key.h" | |
| 27 #include "crypto/scoped_nss_types.h" | |
| 28 #include "crypto/third_party/nss/chromium-nss.h" | |
| 29 #include "net/cert/x509_certificate.h" | |
| 30 #include "net/cert/x509_util.h" | |
| 31 #include "net/cert/x509_util_nss.h" | |
| 32 | |
| 33 namespace net { | |
| 34 | |
| 35 namespace { | |
| 36 | |
| 37 // Microsoft User Principal Name: 1.3.6.1.4.1.311.20.2.3 | |
| 38 const uint8_t kUpnOid[] = {0x2b, 0x6, 0x1, 0x4, 0x1, | |
| 39 0x82, 0x37, 0x14, 0x2, 0x3}; | |
| 40 | |
| 41 // Callback for CERT_DecodeCertPackage(), used in | |
| 42 // CreateOSCertHandlesFromBytes(). | |
| 43 SECStatus PR_CALLBACK | |
| 44 CollectCertsCallback(void* arg, SECItem** certs, int num_certs) { | |
| 45 X509Certificate::OSCertHandles* results = | |
| 46 reinterpret_cast<X509Certificate::OSCertHandles*>(arg); | |
| 47 | |
| 48 for (int i = 0; i < num_certs; ++i) { | |
| 49 X509Certificate::OSCertHandle handle = | |
| 50 X509Certificate::CreateOSCertHandleFromBytes( | |
| 51 reinterpret_cast<char*>(certs[i]->data), certs[i]->len); | |
| 52 if (handle) | |
| 53 results->push_back(handle); | |
| 54 } | |
| 55 | |
| 56 return SECSuccess; | |
| 57 } | |
| 58 | |
| 59 typedef std::unique_ptr<CERTName, | |
| 60 crypto::NSSDestroyer<CERTName, CERT_DestroyName>> | |
| 61 ScopedCERTName; | |
| 62 | |
| 63 // Create a new CERTName object from its encoded representation. | |
| 64 // |arena| is the allocation pool to use. | |
| 65 // |data| points to a DER-encoded X.509 DistinguishedName. | |
| 66 // Return a new CERTName pointer on success, or NULL. | |
| 67 CERTName* CreateCertNameFromEncoded(PLArenaPool* arena, | |
| 68 const base::StringPiece& data) { | |
| 69 if (!arena) | |
| 70 return NULL; | |
| 71 | |
| 72 ScopedCERTName name(PORT_ArenaZNew(arena, CERTName)); | |
| 73 if (!name.get()) | |
| 74 return NULL; | |
| 75 | |
| 76 SECItem item; | |
| 77 item.len = static_cast<unsigned int>(data.length()); | |
| 78 item.data = reinterpret_cast<unsigned char*>(const_cast<char*>(data.data())); | |
| 79 | |
| 80 SECStatus rv = SEC_ASN1DecodeItem(arena, name.get(), | |
| 81 SEC_ASN1_GET(CERT_NameTemplate), &item); | |
| 82 if (rv != SECSuccess) | |
| 83 return NULL; | |
| 84 | |
| 85 return name.release(); | |
| 86 } | |
| 87 | |
| 88 } // namespace | |
| 89 | |
| 90 namespace x509_util { | |
| 91 | |
| 92 void ParsePrincipal(CERTName* name, CertPrincipal* principal) { | |
| 93 // Starting in NSS 3.15, CERTGetNameFunc takes a const CERTName* argument. | |
| 94 #if NSS_VMINOR >= 15 | |
| 95 typedef char* (*CERTGetNameFunc)(const CERTName* name); | |
| 96 #else | |
| 97 typedef char* (*CERTGetNameFunc)(CERTName* name); | |
| 98 #endif | |
| 99 | |
| 100 // TODO(jcampan): add business_category and serial_number. | |
| 101 // TODO(wtc): NSS has the CERT_GetOrgName, CERT_GetOrgUnitName, and | |
| 102 // CERT_GetDomainComponentName functions, but they return only the most | |
| 103 // general (the first) RDN. NSS doesn't have a function for the street | |
| 104 // address. | |
| 105 static const SECOidTag kOIDs[] = {SEC_OID_AVA_STREET_ADDRESS, | |
| 106 SEC_OID_AVA_ORGANIZATION_NAME, | |
| 107 SEC_OID_AVA_ORGANIZATIONAL_UNIT_NAME, | |
| 108 SEC_OID_AVA_DC}; | |
| 109 | |
| 110 std::vector<std::string>* values[] = {&principal->street_addresses, | |
| 111 &principal->organization_names, | |
| 112 &principal->organization_unit_names, | |
| 113 &principal->domain_components}; | |
| 114 DCHECK_EQ(arraysize(kOIDs), arraysize(values)); | |
| 115 | |
| 116 CERTRDN** rdns = name->rdns; | |
| 117 for (size_t rdn = 0; rdns[rdn]; ++rdn) { | |
| 118 CERTAVA** avas = rdns[rdn]->avas; | |
| 119 for (size_t pair = 0; avas[pair] != 0; ++pair) { | |
| 120 SECOidTag tag = CERT_GetAVATag(avas[pair]); | |
| 121 for (size_t oid = 0; oid < arraysize(kOIDs); ++oid) { | |
| 122 if (kOIDs[oid] == tag) { | |
| 123 SECItem* decode_item = CERT_DecodeAVAValue(&avas[pair]->value); | |
| 124 if (!decode_item) | |
| 125 break; | |
| 126 // TODO(wtc): Pass decode_item to CERT_RFC1485_EscapeAndQuote. | |
| 127 std::string value(reinterpret_cast<char*>(decode_item->data), | |
| 128 decode_item->len); | |
| 129 values[oid]->push_back(value); | |
| 130 SECITEM_FreeItem(decode_item, PR_TRUE); | |
| 131 break; | |
| 132 } | |
| 133 } | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 // Get CN, L, S, and C. | |
| 138 CERTGetNameFunc get_name_funcs[4] = {CERT_GetCommonName, | |
| 139 CERT_GetLocalityName, | |
| 140 CERT_GetStateName, | |
| 141 CERT_GetCountryName}; | |
| 142 std::string* single_values[4] = {&principal->common_name, | |
| 143 &principal->locality_name, | |
| 144 &principal->state_or_province_name, | |
| 145 &principal->country_name}; | |
| 146 for (size_t i = 0; i < arraysize(get_name_funcs); ++i) { | |
| 147 char* value = get_name_funcs[i](name); | |
| 148 if (value) { | |
| 149 single_values[i]->assign(value); | |
| 150 PORT_Free(value); | |
| 151 } | |
| 152 } | |
| 153 } | |
| 154 | |
| 155 void ParseDate(const SECItem* der_date, base::Time* result) { | |
| 156 PRTime prtime; | |
| 157 SECStatus rv = DER_DecodeTimeChoice(&prtime, der_date); | |
| 158 DCHECK_EQ(SECSuccess, rv); | |
| 159 *result = crypto::PRTimeToBaseTime(prtime); | |
| 160 } | |
| 161 | |
| 162 std::string ParseSerialNumber(const CERTCertificate* certificate) { | |
| 163 return std::string(reinterpret_cast<char*>(certificate->serialNumber.data), | |
| 164 certificate->serialNumber.len); | |
| 165 } | |
| 166 | |
| 167 void GetSubjectAltName(CERTCertificate* cert_handle, | |
| 168 std::vector<std::string>* dns_names, | |
| 169 std::vector<std::string>* ip_addrs) { | |
| 170 if (dns_names) | |
| 171 dns_names->clear(); | |
| 172 if (ip_addrs) | |
| 173 ip_addrs->clear(); | |
| 174 | |
| 175 SECItem alt_name; | |
| 176 SECStatus rv = CERT_FindCertExtension( | |
| 177 cert_handle, SEC_OID_X509_SUBJECT_ALT_NAME, &alt_name); | |
| 178 if (rv != SECSuccess) | |
| 179 return; | |
| 180 | |
| 181 PLArenaPool* arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); | |
| 182 DCHECK(arena != NULL); | |
| 183 | |
| 184 CERTGeneralName* alt_name_list; | |
| 185 alt_name_list = CERT_DecodeAltNameExtension(arena, &alt_name); | |
| 186 SECITEM_FreeItem(&alt_name, PR_FALSE); | |
| 187 | |
| 188 CERTGeneralName* name = alt_name_list; | |
| 189 while (name) { | |
| 190 // DNSName and IPAddress are encoded as IA5String and OCTET STRINGs | |
| 191 // respectively, both of which can be byte copied from | |
| 192 // SECItemType::data into the appropriate output vector. | |
| 193 if (dns_names && name->type == certDNSName) { | |
| 194 dns_names->push_back( | |
| 195 std::string(reinterpret_cast<char*>(name->name.other.data), | |
| 196 name->name.other.len)); | |
| 197 } else if (ip_addrs && name->type == certIPAddress) { | |
| 198 ip_addrs->push_back( | |
| 199 std::string(reinterpret_cast<char*>(name->name.other.data), | |
| 200 name->name.other.len)); | |
| 201 } | |
| 202 name = CERT_GetNextGeneralName(name); | |
| 203 if (name == alt_name_list) | |
| 204 break; | |
| 205 } | |
| 206 PORT_FreeArena(arena, PR_FALSE); | |
| 207 } | |
| 208 | |
| 209 void GetRFC822SubjectAltNames(CERTCertificate* cert_handle, | |
| 210 std::vector<std::string>* names) { | |
| 211 crypto::ScopedSECItem alt_name(SECITEM_AllocItem(NULL, NULL, 0)); | |
| 212 DCHECK(alt_name.get()); | |
| 213 | |
| 214 names->clear(); | |
| 215 SECStatus rv = CERT_FindCertExtension( | |
| 216 cert_handle, SEC_OID_X509_SUBJECT_ALT_NAME, alt_name.get()); | |
| 217 if (rv != SECSuccess) | |
| 218 return; | |
| 219 | |
| 220 crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE)); | |
| 221 DCHECK(arena.get()); | |
| 222 | |
| 223 CERTGeneralName* alt_name_list; | |
| 224 alt_name_list = CERT_DecodeAltNameExtension(arena.get(), alt_name.get()); | |
| 225 | |
| 226 CERTGeneralName* name = alt_name_list; | |
| 227 while (name) { | |
| 228 if (name->type == certRFC822Name) { | |
| 229 names->push_back( | |
| 230 std::string(reinterpret_cast<char*>(name->name.other.data), | |
| 231 name->name.other.len)); | |
| 232 } | |
| 233 name = CERT_GetNextGeneralName(name); | |
| 234 if (name == alt_name_list) | |
| 235 break; | |
| 236 } | |
| 237 } | |
| 238 | |
| 239 void GetUPNSubjectAltNames(CERTCertificate* cert_handle, | |
| 240 std::vector<std::string>* names) { | |
| 241 crypto::ScopedSECItem alt_name(SECITEM_AllocItem(NULL, NULL, 0)); | |
| 242 DCHECK(alt_name.get()); | |
| 243 | |
| 244 names->clear(); | |
| 245 SECStatus rv = CERT_FindCertExtension( | |
| 246 cert_handle, SEC_OID_X509_SUBJECT_ALT_NAME, alt_name.get()); | |
| 247 if (rv != SECSuccess) | |
| 248 return; | |
| 249 | |
| 250 crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE)); | |
| 251 DCHECK(arena.get()); | |
| 252 | |
| 253 CERTGeneralName* alt_name_list; | |
| 254 alt_name_list = CERT_DecodeAltNameExtension(arena.get(), alt_name.get()); | |
| 255 | |
| 256 CERTGeneralName* name = alt_name_list; | |
| 257 while (name) { | |
| 258 if (name->type == certOtherName) { | |
| 259 OtherName* on = &name->name.OthName; | |
| 260 if (on->oid.len == sizeof(kUpnOid) && | |
| 261 memcmp(on->oid.data, kUpnOid, sizeof(kUpnOid)) == 0) { | |
| 262 SECItem decoded; | |
| 263 if (SEC_QuickDERDecodeItem(arena.get(), &decoded, | |
| 264 SEC_ASN1_GET(SEC_UTF8StringTemplate), | |
| 265 &name->name.OthName.name) == SECSuccess) { | |
| 266 names->push_back( | |
| 267 std::string(reinterpret_cast<char*>(decoded.data), decoded.len)); | |
| 268 } | |
| 269 } | |
| 270 } | |
| 271 name = CERT_GetNextGeneralName(name); | |
| 272 if (name == alt_name_list) | |
| 273 break; | |
| 274 } | |
| 275 } | |
| 276 | |
| 277 X509Certificate::OSCertHandles CreateOSCertHandlesFromBytes( | |
| 278 const char* data, | |
| 279 size_t length, | |
| 280 X509Certificate::Format format) { | |
| 281 X509Certificate::OSCertHandles results; | |
| 282 | |
| 283 crypto::EnsureNSSInit(); | |
| 284 | |
| 285 if (!NSS_IsInitialized()) | |
| 286 return results; | |
| 287 | |
| 288 switch (format) { | |
| 289 case X509Certificate::FORMAT_SINGLE_CERTIFICATE: { | |
| 290 X509Certificate::OSCertHandle handle = | |
| 291 X509Certificate::CreateOSCertHandleFromBytes(data, length); | |
| 292 if (handle) | |
| 293 results.push_back(handle); | |
| 294 break; | |
| 295 } | |
| 296 case X509Certificate::FORMAT_PKCS7: { | |
| 297 // Make a copy since CERT_DecodeCertPackage may modify it | |
| 298 std::vector<char> data_copy(data, data + length); | |
| 299 | |
| 300 SECStatus result = CERT_DecodeCertPackage( | |
| 301 data_copy.data(), base::checked_cast<int>(data_copy.size()), | |
| 302 CollectCertsCallback, &results); | |
| 303 if (result != SECSuccess) | |
| 304 results.clear(); | |
| 305 break; | |
| 306 } | |
| 307 default: | |
| 308 NOTREACHED() << "Certificate format " << format << " unimplemented"; | |
| 309 break; | |
| 310 } | |
| 311 | |
| 312 return results; | |
| 313 } | |
| 314 | |
| 315 X509Certificate::OSCertHandle ReadOSCertHandleFromPickle( | |
| 316 base::PickleIterator* pickle_iter) { | |
| 317 const char* data; | |
| 318 int length; | |
| 319 if (!pickle_iter->ReadData(&data, &length)) | |
| 320 return NULL; | |
| 321 | |
| 322 return X509Certificate::CreateOSCertHandleFromBytes(data, length); | |
| 323 } | |
| 324 | |
| 325 void GetPublicKeyInfo(CERTCertificate* handle, | |
| 326 size_t* size_bits, | |
| 327 X509Certificate::PublicKeyType* type) { | |
| 328 // Since we might fail, set the output parameters to default values first. | |
| 329 *type = X509Certificate::kPublicKeyTypeUnknown; | |
| 330 *size_bits = 0; | |
| 331 | |
| 332 crypto::ScopedSECKEYPublicKey key(CERT_ExtractPublicKey(handle)); | |
| 333 if (!key.get()) | |
| 334 return; | |
| 335 | |
| 336 *size_bits = SECKEY_PublicKeyStrengthInBits(key.get()); | |
| 337 | |
| 338 switch (key->keyType) { | |
| 339 case rsaKey: | |
| 340 *type = X509Certificate::kPublicKeyTypeRSA; | |
| 341 break; | |
| 342 case dsaKey: | |
| 343 *type = X509Certificate::kPublicKeyTypeDSA; | |
| 344 break; | |
| 345 case dhKey: | |
| 346 *type = X509Certificate::kPublicKeyTypeDH; | |
| 347 break; | |
| 348 case ecKey: | |
| 349 *type = X509Certificate::kPublicKeyTypeECDSA; | |
| 350 break; | |
| 351 default: | |
| 352 *type = X509Certificate::kPublicKeyTypeUnknown; | |
| 353 *size_bits = 0; | |
| 354 break; | |
| 355 } | |
| 356 } | |
| 357 | |
| 358 bool GetIssuersFromEncodedList(const std::vector<std::string>& encoded_issuers, | |
| 359 PLArenaPool* arena, | |
| 360 std::vector<CERTName*>* out) { | |
| 361 std::vector<CERTName*> result; | |
| 362 for (size_t n = 0; n < encoded_issuers.size(); ++n) { | |
| 363 CERTName* name = CreateCertNameFromEncoded(arena, encoded_issuers[n]); | |
| 364 if (name != NULL) | |
| 365 result.push_back(name); | |
| 366 } | |
| 367 | |
| 368 if (result.size() == encoded_issuers.size()) { | |
| 369 out->swap(result); | |
| 370 return true; | |
| 371 } | |
| 372 | |
| 373 for (size_t n = 0; n < result.size(); ++n) | |
| 374 CERT_DestroyName(result[n]); | |
| 375 return false; | |
| 376 } | |
| 377 | |
| 378 bool IsCertificateIssuedBy(const std::vector<CERTCertificate*>& cert_chain, | |
| 379 const std::vector<CERTName*>& valid_issuers) { | |
| 380 for (size_t n = 0; n < cert_chain.size(); ++n) { | |
| 381 CERTName* cert_issuer = &cert_chain[n]->issuer; | |
| 382 for (size_t i = 0; i < valid_issuers.size(); ++i) { | |
| 383 if (CERT_CompareName(valid_issuers[i], cert_issuer) == SECEqual) | |
| 384 return true; | |
| 385 } | |
| 386 } | |
| 387 return false; | |
| 388 } | |
| 389 | |
| 390 std::string GetUniqueNicknameForSlot(const std::string& nickname, | |
| 391 const SECItem* subject, | |
| 392 PK11SlotInfo* slot) { | |
| 393 int index = 2; | |
| 394 std::string new_name = nickname; | |
| 395 std::string temp_nickname = new_name; | |
| 396 std::string token_name; | |
| 397 | |
| 398 if (!slot) | |
| 399 return new_name; | |
| 400 | |
| 401 if (!PK11_IsInternalKeySlot(slot)) { | |
| 402 token_name.assign(PK11_GetTokenName(slot)); | |
| 403 token_name.append(":"); | |
| 404 | |
| 405 temp_nickname = token_name + new_name; | |
| 406 } | |
| 407 | |
| 408 while (SEC_CertNicknameConflict(temp_nickname.c_str(), | |
| 409 const_cast<SECItem*>(subject), | |
| 410 CERT_GetDefaultCertDB())) { | |
| 411 base::SStringPrintf(&new_name, "%s #%d", nickname.c_str(), index++); | |
| 412 temp_nickname = token_name + new_name; | |
| 413 } | |
| 414 | |
| 415 return new_name; | |
| 416 } | |
| 417 | |
| 418 } // namespace x509_util | |
| 419 | |
| 420 } // namespace net | |
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Chromium Code Reviews
Issue 1882433002:
Removing NSS files and USE_OPENSSL flag (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master