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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "components/nacl/loader/nacl_validation_query.h" | 5 #include "components/nacl/loader/nacl_validation_query.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "components/nacl/loader/nacl_validation_db.h" | 8 #include "components/nacl/loader/nacl_validation_db.h" |
9 #include "crypto/nss_util.h" | 9 #include "crypto/nss_util.h" |
10 #include "native_client/src/include/portability.h" | 10 #include "native_client/src/include/portability.h" |
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36 hasher_(crypto::HMAC::SHA256), | 36 hasher_(crypto::HMAC::SHA256), |
37 db_(db), | 37 db_(db), |
38 buffer_length_(0) { | 38 buffer_length_(0) { |
39 // Without this line on Linux, HMAC::Init will instantiate a singleton that | 39 // Without this line on Linux, HMAC::Init will instantiate a singleton that |
40 // in turn attempts to open a file. Disabling this behavior avoids a ~70 ms | 40 // in turn attempts to open a file. Disabling this behavior avoids a ~70 ms |
41 // stall the first time HMAC is used. | 41 // stall the first time HMAC is used. |
42 // This function is also called in nacl_helper_linux.cc, but nacl_helper may | 42 // This function is also called in nacl_helper_linux.cc, but nacl_helper may |
43 // not be used in all cases. | 43 // not be used in all cases. |
44 // TODO(ncbray) remove when nacl_helper becomes the only code path. | 44 // TODO(ncbray) remove when nacl_helper becomes the only code path. |
45 // http://code.google.com/p/chromium/issues/detail?id=118263 | 45 // http://code.google.com/p/chromium/issues/detail?id=118263 |
46 #if defined(USE_NSS) | 46 #if defined(USE_NSS_CERTS) |
47 crypto::ForceNSSNoDBInit(); | 47 crypto::ForceNSSNoDBInit(); |
48 #endif | 48 #endif |
49 CHECK(hasher_.Init(profile_key)); | 49 CHECK(hasher_.Init(profile_key)); |
50 } | 50 } |
51 | 51 |
52 void NaClValidationQuery::AddData(const char* data, size_t length) { | 52 void NaClValidationQuery::AddData(const char* data, size_t length) { |
53 CHECK(state_ == READY); | 53 CHECK(state_ == READY); |
54 CHECK(buffer_length_ <= sizeof(buffer_)); | 54 CHECK(buffer_length_ <= sizeof(buffer_)); |
55 // Chrome's HMAC class doesn't support incremental signing. Work around | 55 // Chrome's HMAC class doesn't support incremental signing. Work around |
56 // this by using a (small) temporary buffer to accumulate data. | 56 // this by using a (small) temporary buffer to accumulate data. |
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136 // Make sure any fields introduced in a cross-repo change are zeroed. | 136 // Make sure any fields introduced in a cross-repo change are zeroed. |
137 memset(cache, 0, sizeof(*cache)); | 137 memset(cache, 0, sizeof(*cache)); |
138 cache->handle = new NaClValidationQueryContext(db, profile_key, nacl_version); | 138 cache->handle = new NaClValidationQueryContext(db, profile_key, nacl_version); |
139 cache->CreateQuery = CreateQuery; | 139 cache->CreateQuery = CreateQuery; |
140 cache->AddData = AddData; | 140 cache->AddData = AddData; |
141 cache->QueryKnownToValidate = QueryKnownToValidate; | 141 cache->QueryKnownToValidate = QueryKnownToValidate; |
142 cache->SetKnownToValidate = SetKnownToValidate; | 142 cache->SetKnownToValidate = SetKnownToValidate; |
143 cache->DestroyQuery = DestroyQuery; | 143 cache->DestroyQuery = DestroyQuery; |
144 return cache; | 144 return cache; |
145 } | 145 } |
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