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Merge pull request #5039 from leoetlino/es-import-hash-check 

IOS/ES: Check the content hash during imports
This commit is contained in:
Matthew Parlane 2017-03-09 10:58:06 +13:00 committed by GitHub
parent be8de62b88 daa5ff9a81
commit cd826cee34
1 changed files with 13 additions and 0 deletions
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13
Source/Core/Core/IOS/ES/ES.cpp
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@ -14,6 +14,7 @@
#include <vector>
#include <mbedtls/aes.h>
#include <mbedtls/sha1.h>
#include "Common/Align.h"
#include "Common/Assert.h"
@ -581,6 +582,13 @@ IPCCommandResult ES::AddContentData(const IOCtlVRequest& request)
return GetDefaultReply(IPC_SUCCESS);
}
static bool CheckIfContentHashMatches(const std::vector<u8>& content, const IOS::ES::Content& info)
{
std::array<u8, 20> sha1;
mbedtls_sha1(content.data(), info.size, sha1.data());
return sha1 == info.sha1;
}
IPCCommandResult ES::AddContentFinish(const IOCtlVRequest& request)
{
if (!request.HasNumberOfValidVectors(1, 0))
@ -615,6 +623,11 @@ IPCCommandResult ES::AddContentFinish(const IOCtlVRequest& request)
std::vector<u8> decrypted_data(m_addtitle_content_buffer.size());
mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_DECRYPT, m_addtitle_content_buffer.size(), iv,
m_addtitle_content_buffer.data(), decrypted_data.data());
if (!CheckIfContentHashMatches(decrypted_data, content_info))
{
ERROR_LOG(IOS_ES, "AddContentFinish: Hash for content %08x doesn't match", content_info.id);
return GetDefaultReply(ES_HASH_DOESNT_MATCH);
}
std::string content_path;
if (content_info.IsShared())