One of those fixes made it into session_btree-0.4.patch, so I've
reposted the patch without it:

https://sourceforge.net/tracker/download.php?group_id=128009&atid=710344&file_id=409164&aid=3196229

Thanks,
Kent

On Mon, Apr 18, 2011 at 11:08 AM, Kent Yoder <[email protected]> wrote:
> I've attached [1] to the bugzilla -- two additional bugfixes I've
> found during testing.  One is an access to an initialized variable,
> the other sets the correct login state after all sessions are closed.
>
> Thanks,
> Kent
>
> Signed-off-by: Kent Yoder <[email protected]>
>
> [1] 
> https://sourceforge.net/tracker/download.php?group_id=128009&atid=710344&file_id=409160&aid=3196229
>
> On Mon, Apr 11, 2011 at 2:58 PM, Kent Yoder <[email protected]> wrote:
>> Hi,
>>
>>  This patch changes the way opencryptoki handles sessions by moving
>> from using a reference to memory to using a handle which references a
>> binary tree node.  This keeps opencryptoki from crashing when an app
>> uses an invalid session handle.  testcases/driver/sess_bench reports
>> no performance regression using this patch. Due to its size, the patch
>> is not inline, but available here [1].
>>
>> - Uses a binary tree implemented in usr/lib/pkcs11/common/btree.c
>> - One tree at the API level and another for each STDLL, replacing a
>> linked list at the API level
>> - The Session_Struct_t list is totally gone now, replaced by sess_btree
>> in the API_Proc_Struct_t. The "value" pointer in the API-level btree
>> holds a ref to a ST_SESSION_T (a struct with just a handle and slot ID) and
>> the "value" pointer in the STDLL btree is a ref to a SESSION struct.
>> - The C_CloseAllSessions was tricky and required me to iterate through
>> all the nodes of the tree, checking if the slot ID is matches and
>> removing the node if so. For this you'll see a bt_for_each_node()
>> function, which uses a callback to check if the slot matches and if so,
>> close the session. Calling C_CloseSession from the callback would be
>> nicer, but we'd hit a deadlock on SessListMutex.
>> - There are a couple of minor clean ups in here too:
>>  -- Pass ST_SESSION_T * through various APIs instead of the full struct 
>> itself
>>  -- Pass a SESSION struct down into the TPM STDLL instead of a ST_SESSION_T
>>  -- No more SESS_SET macro, which was ugly :)
>>
>> Tested on the TPM and software tokens on i686 and the software token on 
>> s390x.
>>
>> Note that this patch doesn't address passing in CK_OBJECT_HANDLE's,
>> which also use references to memory.  Another patch for that will
>> follow.
>>
>> Thanks,
>> Kent
>>
>>  usr/include/pkcs11/apictl.h                |   27 +--
>>  usr/include/pkcs11/local_types.h           |   31 ++
>>  usr/include/pkcs11/stdll.h                 |  112 ++++----
>>  usr/lib/pkcs11/aep_stdll/Makefile.am       |    2 +-
>>  usr/lib/pkcs11/api/Makefile.am             |    3 +-
>>  usr/lib/pkcs11/api/api_interface.c         |  483 
>> +++++++++++----------------
>>  usr/lib/pkcs11/api/apiproto.h              |    9 +-
>>  usr/lib/pkcs11/api/apiutil.c               |  167 +++++-----
>>  usr/lib/pkcs11/bcom_stdll/Makefile.am      |    2 +-
>>  usr/lib/pkcs11/cca_stdll/Makefile.am       |    1 +
>>  usr/lib/pkcs11/cca_stdll/globals.c         |    2 +-
>>  usr/lib/pkcs11/cca_stdll/h_extern.h        |    6 +-
>>  usr/lib/pkcs11/cca_stdll/new_host.c        |  281 +++++++---------
>>  usr/lib/pkcs11/common/btree.c              |  318 ++++++++++++++++++
>>  usr/lib/pkcs11/common/globals.c            |    2 +-
>>  usr/lib/pkcs11/common/h_extern.h           |    6 +-
>>  usr/lib/pkcs11/common/new_host.c           |  276 +++++++---------
>>  usr/lib/pkcs11/common/sess_mgr.c           |  241 ++++++++-------
>>  usr/lib/pkcs11/cr_stdll/Makefile.am        |    2 +-
>>  usr/lib/pkcs11/ica_s390_stdll/Makefile.am  |    2 +-
>>  usr/lib/pkcs11/ica_stdll/Makefile.am       |    2 +-
>>  usr/lib/pkcs11/soft_stdll/Makefile.am      |    1 +
>>  usr/lib/pkcs11/tpm_stdll/Makefile.am       |    1 +
>>  usr/lib/pkcs11/tpm_stdll/globals.c         |    2 +-
>>  usr/lib/pkcs11/tpm_stdll/h_extern.h        |    6 +-
>>  usr/lib/pkcs11/tpm_stdll/new_host.c        |  275 +++++++---------
>>  usr/lib/pkcs11/tpm_stdll/tok_spec_struct.h |    2 +-
>>  usr/lib/pkcs11/tpm_stdll/tok_specific.h    |    2 +-
>>  usr/lib/pkcs11/tpm_stdll/tpm_specific.c    |    3 +-
>>  29 files changed, 1200 insertions(+), 1067 deletions(-)
>>
>> [1] 
>> https://sourceforge.net/tracker/download.php?group_id=128009&atid=710344&file_id=408193&aid=3196229
>>
>

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