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Set max output buffer size in Mod Mock

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Merge from Widevine repo of http://go/wvgerrit/72392

This adds the ability of the reference code to set the maximum output
buffer size error discussed in the Recoverable Errors section of
http://go/wvdelta15

Bug: http://b/120572363 Add Recoverable Errors (mod mock)
Change-Id: I688caca22929e29b3548c3f7d1df5de5bd37bfa1
This commit is contained in:
Fred Gylys-Colwell
2019-02-10 20:06:08 -08:00
parent d20cf6c892
commit 4389e262d1
2 changed files with 12 additions and 0 deletions
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7
libwvdrmengine/oemcrypto/ref/src/oemcrypto_engine_ref.cpp
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@@ -215,6 +215,13 @@ OEMCryptoResult CryptoEngine::SetDestination(
default:
return OEMCrypto_ERROR_INVALID_CONTEXT;
}
size_t max_allowed = max_output_size();
if (max_allowed > 0 &&
(max_allowed < max_length || max_allowed < data_length)) {
LOGE("Output too large (or buffer too small).");
return OEMCrypto_ERROR_OUTPUT_TOO_LARGE;
}
if (out_description->type != OEMCrypto_BufferType_Direct &&
max_length < data_length) {
LOGE("[SetDestination(): OEMCrypto_ERROR_SHORT_BUFFER]");