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[api] harmonize nullptr assert check of pointer input parameters (#8031)

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This commit harmonizes and simplifies the code related to asserting
that the OT API pointer parameters are valid and not `nullptr`.
`OPENTHREAD_CONFIG_ASSERT_CHECK_API_POINTER_PARAM_FOR_NULL` is added
which when used performs assert check on all pointer inputs to APIs.
This is either done within `AsCoreType()` when the pointer is
converted to its related core type, or by a direct call to newly added
macro `AssertPointerIsNotNull()`.

Since enabling assert checks on every API parameter can increase code
size, this config is disabled by default and it is recommended to use
it during debugging only.
This commit is contained in:
Abtin Keshavarzian
2022-08-17 20:22:19 -07:00
committed by GitHub
parent cb91e43322
commit 897a29565e
28 changed files with 199 additions and 105 deletions
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src/core/api/crypto_api.cpp
+12 -3
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@@ -51,11 +51,11 @@ void otCryptoHmacSha256(const otCryptoKey *aKey, const uint8_t *aBuf, uint16_t a
{
HmacSha256 hmac;
OT_ASSERT((aKey != nullptr) && (aBuf != nullptr) && (aHash != nullptr));
AssertPointerIsNotNull(aBuf);
hmac.Start(AsCoreType(aKey));
hmac.Update(aBuf, aBufLength);
hmac.Finish(ot::AsCoreType(aHash));
hmac.Finish(AsCoreType(aHash));
}
void otCryptoAesCcm(const otCryptoKey *aKey,
@@ -71,7 +71,11 @@ void otCryptoAesCcm(const otCryptoKey *aKey,
void * aTag)
{
AesCcm aesCcm;
OT_ASSERT((aNonce != nullptr) && (aPlainText != nullptr) && (aCipherText != nullptr) && (aTag != nullptr));
AssertPointerIsNotNull(aNonce);
AssertPointerIsNotNull(aPlainText);
AssertPointerIsNotNull(aCipherText);
AssertPointerIsNotNull(aTag);
aesCcm.SetKey(AsCoreType(aKey));
aesCcm.Init(aHeaderLength, aLength, aTagLength, aNonce, aNonceLength);
@@ -95,6 +99,11 @@ otError otCryptoEcdsaSign(uint8_t * aOutput,
const uint8_t *aPrivateKey,
uint16_t aPrivateKeyLength)
{
AssertPointerIsNotNull(aOutput);
AssertPointerIsNotNull(aOutputLength);
AssertPointerIsNotNull(aInputHash);
AssertPointerIsNotNull(aPrivateKey);
return Ecdsa::Sign(aOutput, *aOutputLength, aInputHash, aInputHashLength, aPrivateKey, aPrivateKeyLength);
}