Daniel Becker has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/20447 )

Change subject: IMPALA-13039: AES Encryption/ Decryption Support in Impala
......................................................................


Patch Set 30:

(9 comments)

http://gerrit.cloudera.org:8080/#/c/20447/29/be/src/exprs/string-functions-ir.cc
File be/src/exprs/string-functions-ir.cc:

http://gerrit.cloudera.org:8080/#/c/20447/29/be/src/exprs/string-functions-ir.cc@1823
PS29, Line 1823:     bool* state = reinterpret_cast<bool*>(
> Done
I wasn't really clear here, but I meant we could log the "No AES mode was 
specified..." message if the state is NULL, not a different log message.


http://gerrit.cloudera.org:8080/#/c/20447/29/be/src/exprs/string-functions-ir.cc@1826
PS29, Line 1826: x->AddWarn
> Done
If these functions are moved to the regular .cc file, we can switch back to 
VLOG_QUERY.


http://gerrit.cloudera.org:8080/#/c/20447/29/be/src/exprs/string-functions-ir.cc@1848
PS29, Line 1848:   if (!encryption_key->IsEcbMode() && iv.len > AES_BLOCK_SIZE) 
{
> Done. Overloaded IsEcbMode() to accomodate it.
I meant moving this initialisation after the check. In that case, we could 
check whether it's ECB using the 'cipher_mode' variable.


http://gerrit.cloudera.org:8080/#/c/20447/30/be/src/exprs/string-functions-ir.cc
File be/src/exprs/string-functions-ir.cc:

http://gerrit.cloudera.org:8080/#/c/20447/30/be/src/exprs/string-functions-ir.cc@1826
PS30, Line 1826:     ctx->AddWarning("Function state is NULL.");
Be careful with indentation: this and the corresponding ELSE block (starting on 
1827) should be indented more.


http://gerrit.cloudera.org:8080/#/c/20447/30/be/src/exprs/string-functions-ir.cc@1827
PS30, Line 1827:   } else {
Now we are not checking whether '*state' is true or false.


http://gerrit.cloudera.org:8080/#/c/20447/30/be/src/exprs/string-functions-ir.cc@1893
PS30, Line 1893: default mode
"the default mode of the library" would be clearer.


http://gerrit.cloudera.org:8080/#/c/20447/30/be/src/util/openssl-util.cc
File be/src/util/openssl-util.cc:

http://gerrit.cloudera.org:8080/#/c/20447/30/be/src/util/openssl-util.cc@197
PS30, Line 197: Status ValidateModeAndKeyLength(AES_CIPHER_MODE m, int key_len) 
{
We could also add a test that checks that InitializeRandom() and 
InitializeFields() return an error when they are called with a non-matching 
mode and key_len.


http://gerrit.cloudera.org:8080/#/c/20447/30/be/src/util/openssl-util.cc@228
PS30, Line 228:   if (!status.ok()) {
We should return the error. If validation fails, we shouldn't continue. We 
could use RETURN_IF_ERROR(Validate...)).
This means that InitializeRandom() should return a Status.

The same is true for InitializeFields().


http://gerrit.cloudera.org:8080/#/c/20447/30/tests/query_test/test_exprs.py
File tests/query_test/test_exprs.py:

http://gerrit.cloudera.org:8080/#/c/20447/30/tests/query_test/test_exprs.py@77
PS30, Line 77:     """Test handling of expressions with "special" strings."""
This comment is not for this function.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I3902f2b1d95da4d06995cbd687e79c48e16190c9
Gerrit-Change-Number: 20447
Gerrit-PatchSet: 30
Gerrit-Owner: Pranav Lodha <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Daniel Becker <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Kurt Deschler <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Reviewer: Noemi Pap-Takacs <[email protected]>
Gerrit-Reviewer: Pranav Lodha <[email protected]>
Gerrit-Comment-Date: Fri, 24 Jan 2025 15:10:54 +0000
Gerrit-HasComments: Yes

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