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https://issues.apache.org/jira/browse/ZOOKEEPER-1112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom Klonikowski updated ZOOKEEPER-1112:
---------------------------------------

    Attachment: ZOOKEEPER-1112_3.patch
                ZOOKEEPER-1112_2.patch
                ZOOKEEPER-1112_1.patch

Further improvements and splitted patch into (consecutive) work items

Patch 1:
- implements sasl operations
- extended tests/zkServer.sh to start a digest-md5 enabled server
- simple test that checks the initial digest-md5 response

No external requirements yet, but you can already let your own sasl 
implementation/library communicate with a (sasl-enabled) zookeeper via 
zoo_(a)sasl function.

Or you can additionally use
Patch 2:
- provides a simple api for sasl authentication (zoo_sasl_init, 
zoo_sasl_connect, zoo_sasl_authenticate)
- requires libsasl2 (and plugins)
- autoconf/make configuration
- test for digest-md5 authentication
- extended configuration for digest-md5 sasl server required by sasl2

Patch 3:
- includes a sasl-enabled cli as additional make artifacts

When using the test configuration as in src/c/tests/jaas.digest.server.conf you 
can login via:
cli_sasl_st -u super -h zk-sasl-md5 -m DIGEST-MD5 hostlist
and password 'test'.
If you set up Kerberos 5 on the server side and have a valid ticket its just:
cli_sasl_st -m GSSAPI hostlist

This patches deprecate the earlier single patch.
                
> Add support for C client for SASL authentication
> ------------------------------------------------
>
>                 Key: ZOOKEEPER-1112
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1112
>             Project: ZooKeeper
>          Issue Type: New Feature
>            Reporter: Eugene Koontz
>         Attachments: ZOOKEEPER-1112.patch, ZOOKEEPER-1112_1.patch, 
> ZOOKEEPER-1112_2.patch, ZOOKEEPER-1112_3.patch, zookeeper-c-client-sasl.patch
>
>
> Hopefully this would leverage the SASL server-side support provided by 
> ZOOKEEPER-938. It would be similar to the Java SASL client support also 
> provided in ZOOKEEPER-938.
> Java has built-in SASL support, but I'm not sure what C libraries are 
> available for SASL and if so, are they compatible with the Apache license.

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