87ea4f6ad4
This is a merge of the following CLs: Style clean up in oemcrypto/mock https://widevine-internal-review.googlesource.com/#/c/10660 Split off default keybox. https://widevine-internal-review.googlesource.com/#/c/10661/ Split off several properties from CryptoEngine. https://widevine-internal-review.googlesource.com/#/c/10662/ Split off Keybox installation. https://widevine-internal-review.googlesource.com/#/c/10680/ Wii-U build compatibility fixes. https://widevine-internal-review.googlesource.com/#/c/10720/ Fix style issues in oemcrypto_logging_test. https://widevine-internal-review.googlesource.com/#/c/10824/ Correct OEMCrypto error codes in the mock. https://widevine-internal-review.googlesource.com/#/c/10821/ Enable logging during OEMCrypto unit tests. https://widevine-internal-review.googlesource.com/#/c/10833/ Wait to create usage table path until needed. https://widevine-internal-review.googlesource.com/#/c/10831/ Allow keybox installation to be unimplemented. https://widevine-internal-review.googlesource.com/#/c/10850/ Minor clean up in the OEMCrypto header. https://widevine-internal-review.googlesource.com/#/c/10921/ Add usage table device property to the mock oemcrypto https://widevine-internal-review.googlesource.com/#/c/11092/ Change-Id: I02a818a620bcd4bd2291f1b3c0ac9308ae444319
111 lines
3.9 KiB
C++
111 lines
3.9 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
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//
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// Mock implementation of OEMCrypto APIs
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//
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#include "oemcrypto_key_mock.h"
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#include <cstring>
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#include <vector>
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#include "log.h"
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#include "oemcrypto_logging.h"
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#include "wv_cdm_constants.h"
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namespace wvoec_mock {
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#define FOURCC(c1, c2, c3, c4) \
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(c1 << 24 | c2 << 16 | c3 << 8 | c4)
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bool KeyControlBlock::Validate() {
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if ((FOURCC('k', 'c', 't', 'l') != verification_) && // original verification
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(FOURCC('k', 'c', '0', '9') != verification_)) { // add in version 9 api.
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LOGE("KCB: BAD verification string: %08X (not %08X or %08X)", verification_,
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0x6b63746c, 0x6b633039);
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return false;
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}
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valid_ = true;
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return valid_;
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}
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// This extracts 4 bytes in network byte order to a 32 bit integer in
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// host byte order.
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uint32_t KeyControlBlock::ExtractField(const std::vector<uint8_t>& str,
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int idx) {
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int bidx = idx * 4;
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uint32_t t = static_cast<unsigned char>(str[bidx]) << 24;
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t |= static_cast<unsigned char>(str[bidx + 1]) << 16;
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t |= static_cast<unsigned char>(str[bidx + 2]) << 8;
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t |= static_cast<unsigned char>(str[bidx + 3]);
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return t;
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}
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KeyControlBlock::KeyControlBlock(
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const std::vector<uint8_t>& key_control_string) {
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if (key_control_string.size() < wvcdm::KEY_CONTROL_SIZE) {
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LOGE("KCB: BAD Size: %d (not %d)", key_control_string.size(),
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wvcdm::KEY_CONTROL_SIZE);
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return;
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}
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verification_ = ExtractField(key_control_string, 0);
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duration_ = ExtractField(key_control_string, 1);
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nonce_ = ExtractField(key_control_string, 2);
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control_bits_ = ExtractField(key_control_string, 3);
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if (LogCategoryEnabled(kLoggingDumpKeyControlBlocks)) {
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LOGD("KCB:");
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LOGD(" valid: %d", valid());
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LOGD(" duration: %d", duration());
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LOGD(" nonce: %08X", nonce());
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LOGD(" magic: %08X", verification());
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LOGD(" bits: %08X", control_bits());
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switch (control_bits() & kControlReplayMask) {
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case kControlNonceRequired:
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LOGD(" bits kControlReplay kControlNonceRequired.");
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break;
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case kControlNonceOrEntry:
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LOGD(" bits kControlReplay kControlNonceOrEntry.");
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break;
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default:
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LOGD(" bits kControlReplay unset.");
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break;
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}
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LOGD(" bits kControlKDCPVersion 0x%02x.",
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(control_bits() & kControlHDCPVersionMask)
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>> kControlHDCPVersionShift);
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LOGD(" bit kControlAllowEncrypt %s.",
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(control_bits() & kControlAllowEncrypt) ? "set" : "unset");
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LOGD(" bit kControlAllowDecrypt %s.",
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(control_bits() & kControlAllowDecrypt) ? "set" : "unset");
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LOGD(" bit kControlAllowSign %s.",
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(control_bits() & kControlAllowSign) ? "set" : "unset");
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LOGD(" bit kControlAllowVerify %s.",
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(control_bits() & kControlAllowVerify) ? "set" : "unset");
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LOGD(" bit kControlObserveDataPath %s.",
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(control_bits() & kControlObserveDataPath) ? "set" : "unset");
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LOGD(" bit kControlObserveHDCP %s.",
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(control_bits() & kControlObserveHDCP) ? "set" : "unset");
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LOGD(" bit kControlObserveCGMS %s.",
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(control_bits() & kControlObserveCGMS) ? "set" : "unset");
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LOGD(" bit kControlDataPathSecure %s.",
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(control_bits() & kControlDataPathSecure) ? "set" : "unset");
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LOGD(" bit kControlNonceEnabled %s.",
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(control_bits() & kControlNonceEnabled) ? "set" : "unset");
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LOGD(" bit kControlHDCPRequired %s.",
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(control_bits() & kControlHDCPRequired) ? "set" : "unset");
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uint32_t cgms_bits = control_bits() & 0x3;
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const char* cgms_values[4] = {"free", "BAD", "once", "never"};
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LOGD(" CGMS = %s", cgms_values[cgms_bits]);
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}
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Validate();
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}
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Key::Key(const std::vector<uint8_t>& key_string, const KeyControlBlock& control)
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: value_(key_string), control_(control) {}
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void Key::UpdateDuration(const KeyControlBlock& control) {
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control_.set_duration(control.duration());
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}
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} // namespace wvoec_mock
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