pkcs11_tpm/common/sess_mgr.c

/*
 *		Common Public License Version 0.5
 *
 *		THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF
 *		THIS COMMON PUBLIC LICENSE ("AGREEMENT"). ANY USE,
 *		REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
 *		RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
 *
 *		1. DEFINITIONS
 *
 *		"Contribution" means:
 *		      a) in the case of the initial Contributor, the
 *		      initial code and documentation distributed under
 *		      this Agreement, and
 *
 *		      b) in the case of each subsequent Contributor:
 *		      i) changes to the Program, and
 *		      ii) additions to the Program;
 *
 *		      where such changes and/or additions to the Program
 *		      originate from and are distributed by that
 *		      particular Contributor. A Contribution 'originates'
 *		      from a Contributor if it was added to the Program
 *		      by such Contributor itself or anyone acting on such
 *		      Contributor's behalf. Contributions do not include
 *		      additions to the Program which: (i) are separate
 *		      modules of software distributed in conjunction with
 *		      the Program under their own license agreement, and
 *		      (ii) are not derivative works of the Program.
 *
 *
 *		"Contributor" means any person or entity that distributes
 *		the Program.
 *
 *		"Licensed Patents " mean patent claims licensable by a
 *		Contributor which are necessarily infringed by the use or
 *		sale of its Contribution alone or when combined with the
 *		Program.
 *
 *		"Program" means the Contributions distributed in
 *		accordance with this Agreement.
 *
 *		"Recipient" means anyone who receives the Program under
 *		this Agreement, including all Contributors.
 *
 *		2. GRANT OF RIGHTS
 *
 *		      a) Subject to the terms of this Agreement, each
 *		      Contributor hereby grants Recipient a
 *		      no - exclusive, worldwide, royalt - free copyright
 *		      license to reproduce, prepare derivative works of,
 *		      publicly display, publicly perform, distribute and
 *		      sublicense the Contribution of such Contributor, if
 *		      any, and such derivative works, in source code and
 *		      object code form.
 *
 *		      b) Subject to the terms of this Agreement, each
 *		      Contributor hereby grants Recipient a
 *		      no - exclusive, worldwide, royalt - free patent
 *		      license under Licensed Patents to make, use, sell,
 *		      offer to sell, import and otherwise transfer the
 *		      Contribution of such Contributor, if any, in source
 *		      code and object code form. This patent license
 *		      shall apply to the combination of the Contribution
 *		      and the Program if, at the time the Contribution is
 *		      added by the Contributor, such addition of the
 *		      Contribution causes such combination to be covered
 *		      by the Licensed Patents. The patent license shall
 *		      not apply to any other combinations which include
 *		      the Contribution. No hardware per se is licensed
 *		      hereunder.
 *
 *		      c) Recipient understands that although each
 *		      Contributor grants the licenses to its
 *		      Contributions set forth herein, no assurances are
 *		      provided by any Contributor that the Program does
 *		      not infringe the patent or other intellectual
 *		      property rights of any other entity. Each
 *		      Contributor disclaims any liability to Recipient
 *		      for claims brought by any other entity based on
 *		      infringement of intellectual property rights or
 *		      otherwise. As a condition to exercising the rights
 *		      and licenses granted hereunder, each Recipient
 *		      hereby assumes sole responsibility to secure any
 *		      other intellectual property rights needed, if any.
 *
 *		      For example, if a third party patent license is
 *		      required to allow Recipient to distribute the
 *		      Program, it is Recipient's responsibility to
 *		      acquire that license before distributing the
 *		      Program.
 *
 *		      d) Each Contributor represents that to its
 *		      knowledge it has sufficient copyright rights in its
 *		      Contribution, if any, to grant the copyright
 *		      license set forth in this Agreement.
 *
 *		3. REQUIREMENTS
 *
 *		A Contributor may choose to distribute the Program in
 *		object code form under its own license agreement, provided
 *		that:
 *		      a) it complies with the terms and conditions of
 *		      this Agreement; and
 *
 *		      b) its license agreement:
 *		      i) effectively disclaims on behalf of all
 *		      Contributors all warranties and conditions, express
 *		      and implied, including warranties or conditions of
 *		      title and no - infringement, and implied warranties
 *		      or conditions of merchantability and fitness for a
 *		      particular purpose;
 *
 *		      ii) effectively excludes on behalf of all
 *		      Contributors all liability for damages, including
 *		      direct, indirect, special, incidental and
 *		      consequential damages, such as lost profits;
 *
 *		      iii) states that any provisions which differ from
 *		      this Agreement are offered by that Contributor
 *		      alone and not by any other party; and
 *
 *		      iv) states that source code for the Program is
 *		      available from such Contributor, and informs
 *		      licensees how to obtain it in a reasonable manner
 *		      on or through a medium customarily used for
 *		      software exchange.
 *
 *		When the Program is made available in source code form:
 *		      a) it must be made available under this Agreement;
 *		      and
 *		      b) a copy of this Agreement must be included with
 *		      each copy of the Program.
 *
 *		Contributors may not remove or alter any copyright notices
 *		contained within the Program.
 *
 *		Each Contributor must identify itself as the originator of
 *		its Contribution, if any, in a manner that reasonably
 *		allows subsequent Recipients to identify the originator of
 *		the Contribution.
 *
 *
 *		4. COMMERCIAL DISTRIBUTION
 *
 *		Commercial distributors of software may accept certain
 *		responsibilities with respect to end users, business
 *		partners and the like. While this license is intended to
 *		facilitate the commercial use of the Program, the
 *		Contributor who includes the Program in a commercial
 *		product offering should do so in a manner which does not
 *		create potential liability for other Contributors.
 *		Therefore, if a Contributor includes the Program in a
 *		commercial product offering, such Contributor ("Commercial
 *		Contributor") hereby agrees to defend and indemnify every
 *		other Contributor ("Indemnified Contributor") against any
 *		losses, damages and costs (collectively "Losses") arising
 *		from claims, lawsuits and other legal actions brought by a
 *		third party against the Indemnified Contributor to the
 *		extent caused by the acts or omissions of such Commercial
 *		Contributor in connection with its distribution of the
 *		Program in a commercial product offering. The obligations
 *		in this section do not apply to any claims or Losses
 *		relating to any actual or alleged intellectual property
 *		infringement. In order to qualify, an Indemnified
 *		Contributor must: a) promptly notify the Commercial
 *		Contributor in writing of such claim, and b) allow the
 *		Commercial Contributor to control, and cooperate with the
 *		Commercial Contributor in, the defense and any related
 *		settlement negotiations. The Indemnified Contributor may
 *		participate in any such claim at its own expense.
 *
 *
 *		For example, a Contributor might include the Program in a
 *		commercial product offering, Product X. That Contributor
 *		is then a Commercial Contributor. If that Commercial
 *		Contributor then makes performance claims, or offers
 *		warranties related to Product X, those performance claims
 *		and warranties are such Commercial Contributor's
 *		responsibility alone. Under this section, the Commercial
 *		Contributor would have to defend claims against the other
 *		Contributors related to those performance claims and
 *		warranties, and if a court requires any other Contributor
 *		to pay any damages as a result, the Commercial Contributor
 *		must pay those damages.
 *
 *
 *		5. NO WARRANTY
 *
 *		EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE
 *		PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT
 *		WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR
 *		IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR
 *		CONDITIONS OF TITLE, NO - INFRINGEMENT, MERCHANTABILITY OR
 *		FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is solely
 *		responsible for determining the appropriateness of using
 *		and distributing the Program and assumes all risks
 *		associated with its exercise of rights under this
 *		Agreement, including but not limited to the risks and
 *		costs of program errors, compliance with applicable laws,
 *		damage to or loss of data, programs or equipment, and
 *		unavailability or interruption of operations.
 *
 *		6. DISCLAIMER OF LIABILITY
 *		EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER
 *		RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY
 *		FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 *		OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION
 *		LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF
 *		LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *		(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 *		OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE
 *		OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE
 *		POSSIBILITY OF SUCH DAMAGES.
 *
 *		7. GENERAL
 *
 *		If any provision of this Agreement is invalid or
 *		unenforceable under applicable law, it shall not affect
 *		the validity or enforceability of the remainder of the
 *		terms of this Agreement, and without further action by the
 *		parties hereto, such provision shall be reformed to the
 *		minimum extent necessary to make such provision valid and
 *		enforceable.
 *
 *
 *		If Recipient institutes patent litigation against a
 *		Contributor with respect to a patent applicable to
 *		software (including a cros - claim or counterclaim in a
 *		lawsuit), then any patent licenses granted by that
 *		Contributor to such Recipient under this Agreement shall
 *		terminate as of the date such litigation is filed. In
 *		addition, If Recipient institutes patent litigation
 *		against any entity (including a cros - claim or
 *		counterclaim in a lawsuit) alleging that the Program
 *		itself (excluding combinations of the Program with other
 *		software or hardware) infringes such Recipient's
 *		patent(s), then such Recipient's rights granted under
 *		Section 2(b) shall terminate as of the date such
 *		litigation is filed.
 *
 *		All Recipient's rights under this Agreement shall
 *		terminate if it fails to comply with any of the material
 *		terms or conditions of this Agreement and does not cure
 *		such failure in a reasonable period of time after becoming
 *		aware of such noncompliance. If all Recipient's rights
 *		under this Agreement terminate, Recipient agrees to cease
 *		use and distribution of the Program as soon as reasonably
 *		practicable. However, Recipient's obligations under this
 *		Agreement and any licenses granted by Recipient relating
 *		to the Program shall continue and survive.
 *
 *		Everyone is permitted to copy and distribute copies of
 *		this Agreement, but in order to avoid inconsistency the
 *		Agreement is copyrighted and may only be modified in the
 *		following manner. The Agreement Steward reserves the right
 *		to publish new versions (including revisions) of this
 *		Agreement from time to time. No one other than the
 *		Agreement Steward has the right to modify this Agreement.
 *
 *		IBM is the initial Agreement Steward. IBM may assign the
 *		responsibility to serve as the Agreement Steward to a
 *		suitable separate entity. Each new version of the
 *		Agreement will be given a distinguishing version number.
 *		The Program (including Contributions) may always be
 *		distributed subject to the version of the Agreement under
 *		which it was received. In addition, after a new version of
 *		the Agreement is published, Contributor may elect to
 *		distribute the Program (including its Contributions) under
 *		the new version. Except as expressly stated in Sections
 *		2(a) and 2(b) above, Recipient receives no rights or
 *		licenses to the intellectual property of any Contributor
 *		under this Agreement, whether expressly, by implication,
 *		estoppel or otherwise. All rights in the Program not
 *		expressly granted under this Agreement are reserved.
 *
 *
 *		This Agreement is governed by the laws of the State of New
 *		York and the intellectual property laws of the United
 *		States of America. No party to this Agreement will bring a
 *		legal action under this Agreement more than one year after
 *		the cause of action arose. Each party waives its rights to
 *		a jury trial in any resulting litigation.
 *
 *
 *
 * (C) COPYRIGHT International Business Machines Corp. 2001, 2002
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include "tpmtok_int.h"

SESSION *
session_mgr_find(CK_SESSION_HANDLE handle)
{
	DL_NODE  * node   = NULL;
	SESSION  * result = NULL;
	CK_RV	rc;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (NULL);
	}
	node = sess_list;

	while (node) {
		SESSION *s = (SESSION *)node->data;

		if (s->handle == handle) {
			result = s;
			break;
		}

		node = node->next;
	}

	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (result);
}


/*
 * session_mgr_new()
 *
 * creates a new session structure and adds it to the process's list
 * of sessions
 *
 * Args:  CK_ULONG	flags : session flags		   (INPUT)
 *	SESSION **	sess : new session pointer		(OUTPUT)
 *
 * Returns:  CK_RV
 */
CK_RV
session_mgr_new(CK_ULONG flags, SESSION **sess)
{
	SESSION  * new_session  = NULL;
	SESSION  * s	    = NULL;
	DL_NODE  * node	 = NULL;
	CK_BBOOL   user_session = FALSE;
	CK_BBOOL   so_session   = FALSE;
	CK_BBOOL   pkcs_locked  = TRUE;
	CK_BBOOL   sess_locked  = TRUE;
	CK_RV	rc;

	new_session = (SESSION *)malloc(sizeof (SESSION));
	if (! new_session) {
		rc = CKR_HOST_MEMORY;
		goto done;
	}

	(void) memset(new_session, 0x0, sizeof (SESSION));

	rc = pthread_mutex_lock(&pkcs_mutex);
	if (rc != CKR_OK) {
		return (rc);
	}
	pkcs_locked = TRUE;

	do {
		s = session_mgr_find(next_session_handle);
		if (s != NULL)
			next_session_handle++;
		else
			new_session->handle = next_session_handle++;
	} while (s != NULL);

	(void) pthread_mutex_unlock(&pkcs_mutex);
	pkcs_locked = FALSE;


	new_session->session_info.slotID	= 1;
	new_session->session_info.flags	 = flags;
	new_session->session_info.ulDeviceError = 0;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (rc);
	}
	sess_locked = TRUE;

	node = sess_list;
	while (node) {
		SESSION *s = (SESSION *)node->data;
		if (s->session_info.state == CKS_RW_SO_FUNCTIONS) {
			so_session = TRUE;
			break;
		}

		if ((s->session_info.state == CKS_RO_USER_FUNCTIONS) ||
		    (s->session_info.state == CKS_RW_USER_FUNCTIONS)) {
			user_session = TRUE;
			break;
		}

		node = node->next;
	}

	if (global_login_state == CKS_RW_SO_FUNCTIONS) {
		so_session = TRUE;
	}
	if ((global_login_state == CKS_RO_USER_FUNCTIONS) ||
	    (global_login_state == CKS_RW_USER_FUNCTIONS)) {
		user_session = TRUE;
	}

	if (user_session) {
		if (new_session->session_info.flags & CKF_RW_SESSION)
			new_session->session_info.state = CKS_RW_USER_FUNCTIONS;
		else
			new_session->session_info.state = CKS_RO_USER_FUNCTIONS;
		} else if (so_session) {

		new_session->session_info.state = CKS_RW_SO_FUNCTIONS;
	} else {
		if (new_session->session_info.flags & CKF_RW_SESSION)
			new_session->session_info.state = CKS_RW_PUBLIC_SESSION;
		else
			new_session->session_info.state = CKS_RO_PUBLIC_SESSION;
	}

	sess_list = dlist_add_as_first(sess_list, new_session);
	*sess = new_session;

	done:
	if (pkcs_locked)
		(void) pthread_mutex_unlock(&pkcs_mutex);

	if (sess_locked)
		(void) pthread_mutex_unlock(&sess_list_mutex);

	if (rc != CKR_OK && new_session != NULL) {
		free(new_session);
	}
	return (rc);
}

CK_BBOOL
session_mgr_so_session_exists(void)
{
	DL_NODE *node = NULL;
	CK_RV    rc;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (rc);
	}
	node = sess_list;
	while (node) {
		SESSION *s = (SESSION *)node->data;
		if (s->session_info.state == CKS_RW_SO_FUNCTIONS) {
			rc = TRUE;
			goto done;
		}

		node = node->next;
	}

	rc = FALSE;

done:
	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (rc);
}

CK_BBOOL
session_mgr_user_session_exists(void)
{
	DL_NODE *node = NULL;
	CK_RV    rc;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (rc);
	}
	node = sess_list;
	while (node) {
		SESSION *s = (SESSION *)node->data;
		if ((s->session_info.state == CKS_RO_USER_FUNCTIONS) ||
		    (s->session_info.state == CKS_RW_USER_FUNCTIONS)) {
			rc = TRUE;
			goto done;
		}

		node = node->next;
	}

	rc = FALSE;

done:
	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (rc);
}

CK_BBOOL
session_mgr_public_session_exists(void)
{
	DL_NODE *node = NULL;
	CK_RV    rc;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (rc);
	}
	node = sess_list;
	while (node) {
		SESSION *s = (SESSION *)node->data;
		if ((s->session_info.state == CKS_RO_PUBLIC_SESSION) ||
		    (s->session_info.state == CKS_RW_PUBLIC_SESSION)) {
			rc = TRUE;
			goto done;
		}

		node = node->next;
	}

	rc = FALSE;

done:
	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (rc);
}

CK_BBOOL
session_mgr_readonly_exists(void)
{
	DL_NODE *node = NULL;
	CK_RV    rc;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (rc);
	}
	node = sess_list;
	while (node) {
		SESSION *s = (SESSION *)node->data;
		if ((s->session_info.flags & CKF_RW_SESSION) == 0) {
			rc = TRUE;
			goto done;
		}

		node = node->next;
	}

	rc = FALSE;

done:
	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (rc);
}

CK_RV
session_mgr_close_session(SESSION *sess)
{
	DL_NODE  * node = NULL;
	CK_RV	rc = CKR_OK;

	if (! sess)
		return (FALSE);
	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (CKR_FUNCTION_FAILED);
	}
	node = dlist_find(sess_list, sess);
	if (! node) {
		rc = CKR_FUNCTION_FAILED;
		goto done;
	}

	(void) object_mgr_purge_session_objects(sess, ALL);

	if (sess->find_list)
		free(sess->find_list);

	if (sess->encr_ctx.context)
		free(sess->encr_ctx.context);

	if (sess->encr_ctx.mech.pParameter)
		free(sess->encr_ctx.mech.pParameter);

	if (sess->decr_ctx.context)
		free(sess->decr_ctx.context);

	if (sess->decr_ctx.mech.pParameter)
		free(sess->decr_ctx.mech.pParameter);

	if (sess->digest_ctx.context.ref)
		free(sess->digest_ctx.context.ref);

	if (sess->digest_ctx.mech.pParameter)
		free(sess->digest_ctx.mech.pParameter);

	if (sess->sign_ctx.context)
		free(sess->sign_ctx.context);

	if (sess->sign_ctx.mech.pParameter)
		free(sess->sign_ctx.mech.pParameter);

	if (sess->verify_ctx.context)
		free(sess->verify_ctx.context);

	if (sess->verify_ctx.mech.pParameter)
		free(sess->verify_ctx.mech.pParameter);

	if (sess->hContext)
		(void) Tspi_Context_Close(sess->hContext);

	free(sess);

	sess_list = dlist_remove_node(sess_list, node);

	if (sess_list == NULL) {
		TSS_HCONTEXT hContext;
		if (open_tss_context(&hContext) == 0) {
			(void) object_mgr_purge_private_token_objects(hContext);
			(void) Tspi_Context_Close(hContext);
		}

		global_login_state = 0;

		(void) pthread_mutex_lock(&obj_list_mutex);
		(void) object_mgr_purge_map((SESSION *)0xFFFF, PRIVATE);
		(void) pthread_mutex_unlock(&obj_list_mutex);
	}

	done:
	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (rc);
}

// session_mgr_close_all_sessions()
//
// removes all sessions from the specified process
//
CK_RV
session_mgr_close_all_sessions(void)
{
	CK_RV   rc = CKR_OK;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (CKR_FUNCTION_FAILED);
	}
	while (sess_list) {
		SESSION *sess = (SESSION *)sess_list->data;

		(void) object_mgr_purge_session_objects(sess, ALL);

		if (sess->find_list)
			free(sess->find_list);

		if (sess->encr_ctx.context)
			free(sess->encr_ctx.context);

		if (sess->encr_ctx.mech.pParameter)
			free(sess->encr_ctx.mech.pParameter);

		if (sess->decr_ctx.context)
			free(sess->decr_ctx.context);

		if (sess->decr_ctx.mech.pParameter)
			free(sess->decr_ctx.mech.pParameter);

		if (sess->digest_ctx.context.ref)
			free(sess->digest_ctx.context.ref);

		if (sess->digest_ctx.mech.pParameter)
			free(sess->digest_ctx.mech.pParameter);

		if (sess->sign_ctx.context)
			free(sess->sign_ctx.context);

		if (sess->sign_ctx.mech.pParameter)
			free(sess->sign_ctx.mech.pParameter);

		if (sess->verify_ctx.context)
			free(sess->verify_ctx.context);

		if (sess->verify_ctx.mech.pParameter)
			free(sess->verify_ctx.mech.pParameter);

		if (sess->hContext)
			(void) Tspi_Context_Close(sess->hContext);

		free(sess);

		sess_list = dlist_remove_node(sess_list, sess_list);
	}

	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (CKR_OK);
}

// session_mgr_login_all()
//
// changes the login status of all sessions in the token
//
// Arg:  CK_USER_TYPE  user_type : USER or SO
//
CK_RV
session_mgr_login_all(CK_USER_TYPE user_type) {
	DL_NODE  * node = NULL;
	CK_RV	rc = CKR_OK;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (CKR_FUNCTION_FAILED);
	}
	node = sess_list;
	while (node) {
		SESSION *s = (SESSION *)node->data;

		if (s->session_info.flags & CKF_RW_SESSION) {
			if (user_type == CKU_USER)
				s->session_info.state = CKS_RW_USER_FUNCTIONS;
			else
				s->session_info.state = CKS_RW_SO_FUNCTIONS;
		} else {
			if (user_type == CKU_USER)
				s->session_info.state = CKS_RO_USER_FUNCTIONS;
		}

		global_login_state = s->session_info.state;
		node = node->next;
	}

	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (CKR_OK);
}

CK_RV
session_mgr_logout_all(void) {
	DL_NODE  * node = NULL;
	SESSION  * s    = NULL;
	CK_RV	rc   = CKR_OK;

	rc = pthread_mutex_lock(&sess_list_mutex);
	if (rc != CKR_OK) {
		return (CKR_FUNCTION_FAILED);
	}
	node = sess_list;
	while (node) {
		s = (SESSION *)node->data;

		(void) object_mgr_purge_session_objects(s, PRIVATE);

		if (s->session_info.flags & CKF_RW_SESSION)
			s->session_info.state = CKS_RW_PUBLIC_SESSION;
		else
			s->session_info.state = CKS_RO_PUBLIC_SESSION;

		global_login_state = s->session_info.state; // SAB

		node = node->next;
	}

	(void) pthread_mutex_unlock(&sess_list_mutex);
	return (CKR_OK);
}

CK_RV
session_mgr_get_op_state(SESSION   *sess,
	CK_BBOOL   length_only,
	CK_BYTE   *data,
	CK_ULONG  *data_len) {
	OP_STATE_DATA  *op_data = NULL;
	CK_ULONG	op_data_len = 0;
	CK_ULONG	offset;
	void		*dptr = data;

	if (! sess) {
		return (CKR_FUNCTION_FAILED);
	}

	if (sess->find_active == TRUE) {
		return (CKR_STATE_UNSAVEABLE);
	}
	if (sess->encr_ctx.active == TRUE) {
		if (op_data != NULL) {
			return (CKR_STATE_UNSAVEABLE);
		}
		op_data_len = sizeof (OP_STATE_DATA)	+
		    sizeof (ENCR_DECR_CONTEXT)  +
		    sess->encr_ctx.context_len +
		    sess->encr_ctx.mech.ulParameterLen;

		if (length_only == FALSE) {
			op_data = (OP_STATE_DATA *)dptr;

			op_data->data_len = op_data_len -
			    sizeof (OP_STATE_DATA);
			op_data->session_state = sess->session_info.state;
			op_data->active_operation = STATE_ENCR;

			offset = sizeof (OP_STATE_DATA);

			(void) (void) memcpy((CK_BYTE *)op_data + offset,
			&sess->encr_ctx,
			sizeof (ENCR_DECR_CONTEXT));

			offset += sizeof (ENCR_DECR_CONTEXT);

			if (sess->encr_ctx.context_len != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				sess->encr_ctx.context,
				sess->encr_ctx.context_len);

				offset += sess->encr_ctx.context_len;
			}

			if (sess->encr_ctx.mech.ulParameterLen != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				sess->encr_ctx.mech.pParameter,
				sess->encr_ctx.mech.ulParameterLen);
			}
		}
	}

	if (sess->decr_ctx.active == TRUE) {
		if (op_data != NULL) {
			return (CKR_STATE_UNSAVEABLE);
		}
		op_data_len = sizeof (OP_STATE_DATA)	+
		    sizeof (ENCR_DECR_CONTEXT)  +
		    sess->decr_ctx.context_len +
		    sess->decr_ctx.mech.ulParameterLen;

		if (length_only == FALSE) {
			op_data = (OP_STATE_DATA *)dptr;

			op_data->data_len = op_data_len -
			    sizeof (OP_STATE_DATA);
			op_data->session_state    = sess->session_info.state;
			op_data->active_operation = STATE_DECR;

			offset = sizeof (OP_STATE_DATA);

			(void) memcpy((CK_BYTE *)op_data + offset,
			&sess->decr_ctx,
			sizeof (ENCR_DECR_CONTEXT));

			offset += sizeof (ENCR_DECR_CONTEXT);

			if (sess->decr_ctx.context_len != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				sess->decr_ctx.context,
				sess->decr_ctx.context_len);

				offset += sess->decr_ctx.context_len;
			}

			if (sess->decr_ctx.mech.ulParameterLen != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				sess->decr_ctx.mech.pParameter,
				sess->decr_ctx.mech.ulParameterLen);
			}
		}
	}

	if (sess->digest_ctx.active == TRUE) {
		if (op_data != NULL) {
			return (CKR_STATE_UNSAVEABLE);
		}
		op_data_len = sizeof (OP_STATE_DATA) +
		    sizeof (DIGEST_CONTEXT) +
		    sess->digest_ctx.context_len +
		    sess->digest_ctx.mech.ulParameterLen;

		if (length_only == FALSE) {
			op_data = (OP_STATE_DATA *)dptr;

			op_data->data_len = op_data_len -
			    sizeof (OP_STATE_DATA);
			op_data->session_state    = sess->session_info.state;
			op_data->active_operation = STATE_DIGEST;

			offset = sizeof (OP_STATE_DATA);

			(void) memcpy((CK_BYTE *)op_data + offset,
			    &sess->digest_ctx, sizeof (DIGEST_CONTEXT));

			offset += sizeof (DIGEST_CONTEXT);

			if (sess->digest_ctx.context_len != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				    sess->digest_ctx.context.ref,
				    sess->digest_ctx.context_len);

				offset += sess->digest_ctx.context_len;
			}

			if (sess->digest_ctx.mech.ulParameterLen != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				    sess->digest_ctx.mech.pParameter,
				    sess->digest_ctx.mech.ulParameterLen);
			}
		}
	}

	if (sess->sign_ctx.active == TRUE) {
		if (op_data != NULL) {
			return (CKR_STATE_UNSAVEABLE);
		}
		op_data_len = sizeof (OP_STATE_DATA) +
		    sizeof (SIGN_VERIFY_CONTEXT) +
		    sess->sign_ctx.context_len +
		    sess->sign_ctx.mech.ulParameterLen;

		if (length_only == FALSE) {
			op_data = (OP_STATE_DATA *)dptr;

			op_data->data_len = op_data_len -
			    sizeof (OP_STATE_DATA);
			op_data->session_state    = sess->session_info.state;
			op_data->active_operation = STATE_SIGN;

			offset = sizeof (OP_STATE_DATA);

			(void) memcpy((CK_BYTE *)op_data + offset,
			    &sess->sign_ctx, sizeof (SIGN_VERIFY_CONTEXT));

			offset += sizeof (SIGN_VERIFY_CONTEXT);

			if (sess->sign_ctx.context_len != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				    sess->sign_ctx.context,
				    sess->sign_ctx.context_len);

				offset += sess->sign_ctx.context_len;
			}

			if (sess->sign_ctx.mech.ulParameterLen != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				    sess->sign_ctx.mech.pParameter,
				    sess->sign_ctx.mech.ulParameterLen);
			}
		}
	}

	if (sess->verify_ctx.active == TRUE) {
		if (op_data != NULL) {
			return (CKR_STATE_UNSAVEABLE);
		}
		op_data_len = sizeof (OP_STATE_DATA)	+
		    sizeof (SIGN_VERIFY_CONTEXT)  +
		    sess->verify_ctx.context_len +
		    sess->verify_ctx.mech.ulParameterLen;

		if (length_only == FALSE) {
			op_data = (OP_STATE_DATA *)dptr;

			op_data->data_len = op_data_len -
			    sizeof (OP_STATE_DATA);
			op_data->session_state    = sess->session_info.state;
			op_data->active_operation = STATE_SIGN;

			offset = sizeof (OP_STATE_DATA);

			(void) memcpy((CK_BYTE *)op_data + offset,
			    &sess->verify_ctx, sizeof (SIGN_VERIFY_CONTEXT));

			offset += sizeof (SIGN_VERIFY_CONTEXT);

			if (sess->verify_ctx.context_len != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				    sess->verify_ctx.context,
				    sess->verify_ctx.context_len);

				offset += sess->verify_ctx.context_len;
			}

			if (sess->verify_ctx.mech.ulParameterLen != 0) {
				(void) memcpy((CK_BYTE *)op_data + offset,
				    sess->verify_ctx.mech.pParameter,
				    sess->verify_ctx.mech.ulParameterLen);
			}
		}
	}

	*data_len = op_data_len;
	return (CKR_OK);
}

CK_RV
session_mgr_set_op_state(
	SESSION	*sess,
	CK_OBJECT_HANDLE encr_key,
	CK_OBJECT_HANDLE auth_key,
	CK_BYTE	*data)
{
	OP_STATE_DATA  *op_data = NULL;
	CK_BYTE	*mech_param = NULL;
	CK_BYTE	*context  = NULL;
	CK_BYTE	*ptr1	= NULL;
	CK_BYTE	*ptr2	= NULL;
	CK_BYTE	*ptr3	= NULL;
	CK_ULONG len;
	void	*dptr = data;

	if (! sess || ! data) {
		return (CKR_FUNCTION_FAILED);
	}
	op_data = (OP_STATE_DATA *)dptr;

	if (sess->session_info.state != op_data->session_state) {
		return (CKR_SAVED_STATE_INVALID);
	}
	switch (op_data->active_operation) {
		case STATE_ENCR:
		case STATE_DECR:
		{
			void *cptr = data + sizeof (OP_STATE_DATA);
			ENCR_DECR_CONTEXT *ctx = (ENCR_DECR_CONTEXT *)cptr;

			len = sizeof (ENCR_DECR_CONTEXT) +
			    ctx->context_len + ctx->mech.ulParameterLen;
			if (len != op_data->data_len) {
				return (CKR_SAVED_STATE_INVALID);
			}
			if (auth_key != 0) {
				return (CKR_KEY_NOT_NEEDED);
			}
			if (encr_key == 0) {
				return (CKR_KEY_NEEDED);
			}
			ptr1 = (CK_BYTE *)ctx;
			ptr2 = ptr1 + sizeof (ENCR_DECR_CONTEXT);
			ptr3 = ptr2 + ctx->context_len;

			if (ctx->context_len) {
				context = (CK_BYTE *)malloc(ctx->context_len);
				if (! context) {
					return (CKR_HOST_MEMORY);
				}
				(void) memcpy(context, ptr2, ctx->context_len);
			}

			if (ctx->mech.ulParameterLen) {
				mech_param = (CK_BYTE *)malloc(
				    ctx->mech.ulParameterLen);
				if (! mech_param) {
					if (context)
						free(context);
					return (CKR_HOST_MEMORY);
				}
				(void) memcpy(mech_param, ptr3,
				    ctx->mech.ulParameterLen);
			}
		}
		break;

		case STATE_SIGN:
		case STATE_VERIFY:
		{
			void *cptr = data + sizeof (OP_STATE_DATA);
			SIGN_VERIFY_CONTEXT *ctx = (SIGN_VERIFY_CONTEXT *)cptr;

			len = sizeof (SIGN_VERIFY_CONTEXT) +
			    ctx->context_len + ctx->mech.ulParameterLen;
			if (len != op_data->data_len) {
				return (CKR_SAVED_STATE_INVALID);
			}
			if (auth_key == 0) {
				return (CKR_KEY_NEEDED);
			}
			if (encr_key != 0) {
				return (CKR_KEY_NOT_NEEDED);
			}
			ptr1 = (CK_BYTE *)ctx;
			ptr2 = ptr1 + sizeof (SIGN_VERIFY_CONTEXT);
			ptr3 = ptr2 + ctx->context_len;

			if (ctx->context_len) {
				context = (CK_BYTE *)malloc(ctx->context_len);
				if (! context) {
					return (CKR_HOST_MEMORY);
				}
				(void) memcpy(context, ptr2, ctx->context_len);
			}

			if (ctx->mech.ulParameterLen) {
				mech_param = (CK_BYTE *)malloc(
				    ctx->mech.ulParameterLen);
				if (! mech_param) {
					if (context)
						free(context);
					return (CKR_HOST_MEMORY);
				}
				(void) memcpy(mech_param, ptr3,
				    ctx->mech.ulParameterLen);
			}
		}
		break;

		case STATE_DIGEST:
		{
			void *cptr = data + sizeof (OP_STATE_DATA);
			DIGEST_CONTEXT *ctx = (DIGEST_CONTEXT *)cptr;

			len = sizeof (DIGEST_CONTEXT) +
			    ctx->context_len + ctx->mech.ulParameterLen;
			if (len != op_data->data_len) {
				return (CKR_SAVED_STATE_INVALID);
			}
			if (auth_key != 0) {
				return (CKR_KEY_NOT_NEEDED);
			}
			if (encr_key != 0) {
				return (CKR_KEY_NOT_NEEDED);
			}
			ptr1 = (CK_BYTE *)ctx;
			ptr2 = ptr1 + sizeof (DIGEST_CONTEXT);
			ptr3 = ptr2 + ctx->context_len;

			if (ctx->context_len) {
				context = (CK_BYTE *)malloc(ctx->context_len);
				if (! context) {
					return (CKR_HOST_MEMORY);
				}
				(void) memcpy(context, ptr2, ctx->context_len);
			}

			if (ctx->mech.ulParameterLen) {
				mech_param = (CK_BYTE *)malloc(
				    ctx->mech.ulParameterLen);
				if (! mech_param) {
					if (context)
						free(context);
					return (CKR_HOST_MEMORY);
				}
				(void) memcpy(mech_param, ptr3,
				    ctx->mech.ulParameterLen);
			}
		}
		break;

		default:
		return (CKR_SAVED_STATE_INVALID);
	}


	if (sess->encr_ctx.active)
		(void) encr_mgr_cleanup(&sess->encr_ctx);

	if (sess->decr_ctx.active)
		(void) decr_mgr_cleanup(&sess->decr_ctx);

	if (sess->digest_ctx.active)
		(void) digest_mgr_cleanup(&sess->digest_ctx);

	if (sess->sign_ctx.active)
		(void) sign_mgr_cleanup(&sess->sign_ctx);

	if (sess->verify_ctx.active)
		(void) verify_mgr_cleanup(&sess->verify_ctx);

	switch (op_data->active_operation) {
		case STATE_ENCR:
		(void) memcpy(&sess->encr_ctx, ptr1,
		    sizeof (ENCR_DECR_CONTEXT));

		sess->encr_ctx.key	= encr_key;
		sess->encr_ctx.context	= context;
		sess->encr_ctx.mech.pParameter = mech_param;
		break;

		case STATE_DECR:
		(void) memcpy(&sess->decr_ctx, ptr1,
		    sizeof (ENCR_DECR_CONTEXT));

		sess->decr_ctx.key = encr_key;
		sess->decr_ctx.context = context;
		sess->decr_ctx.mech.pParameter = mech_param;
		break;

		case STATE_SIGN:
		(void) memcpy(&sess->sign_ctx, ptr1,
		    sizeof (SIGN_VERIFY_CONTEXT));

		sess->sign_ctx.key	= auth_key;
		sess->sign_ctx.context  = context;
		sess->sign_ctx.mech.pParameter = mech_param;
		break;

		case STATE_VERIFY:
		(void) memcpy(&sess->verify_ctx, ptr1,
		    sizeof (SIGN_VERIFY_CONTEXT));

		sess->verify_ctx.key = auth_key;
		sess->verify_ctx.context = context;
		sess->verify_ctx.mech.pParameter = mech_param;
		break;

		case STATE_DIGEST:
		(void) memcpy(&sess->digest_ctx, ptr1,
		    sizeof (DIGEST_CONTEXT));

		sess->digest_ctx.context.ref = context;
		sess->digest_ctx.mech.pParameter = mech_param;
		break;
	}

	return (CKR_OK);
}

CK_BBOOL
pin_expired(CK_SESSION_INFO *si, CK_FLAGS flags)
{
	// If this is an SO session
	if ((flags & CKF_SO_PIN_TO_BE_CHANGED) &&
	    (si->state == CKS_RW_SO_FUNCTIONS))
		return (TRUE);
	return ((flags & CKF_USER_PIN_TO_BE_CHANGED) &&
	    ((si->state == CKS_RO_USER_FUNCTIONS) ||
	    (si->state == CKS_RW_USER_FUNCTIONS)));
}

CK_BBOOL
pin_locked(CK_SESSION_INFO *si, CK_FLAGS flags) {
	// If this is an SO session
	if ((flags & CKF_SO_PIN_LOCKED) &&
	    (si->state == CKS_RW_SO_FUNCTIONS))
		return (TRUE);

	return ((flags & CKF_USER_PIN_LOCKED) &&
	    ((si->state == CKS_RO_USER_FUNCTIONS) ||
	    (si->state == CKS_RW_USER_FUNCTIONS)));
}

void
set_login_flags(CK_USER_TYPE userType, CK_FLAGS *flags) {
	if (userType == CKU_USER) {
		if (*flags & CKF_USER_PIN_FINAL_TRY) {
			*flags |= CKF_USER_PIN_LOCKED;
			*flags &= ~(CKF_USER_PIN_FINAL_TRY);
		} else if (*flags & CKF_USER_PIN_COUNT_LOW) {
			*flags |= CKF_USER_PIN_FINAL_TRY;
			*flags &= ~(CKF_USER_PIN_COUNT_LOW);
		} else {
			*flags |= CKF_USER_PIN_COUNT_LOW;
		}
	} else {
		if (*flags & CKF_SO_PIN_FINAL_TRY) {
			*flags |= CKF_SO_PIN_LOCKED;
			*flags &= ~(CKF_SO_PIN_FINAL_TRY);
		} else if (*flags & CKF_SO_PIN_COUNT_LOW) {
			*flags |= CKF_SO_PIN_FINAL_TRY;
			*flags &= ~(CKF_SO_PIN_COUNT_LOW);
		} else {
			*flags |= CKF_SO_PIN_COUNT_LOW;
		}
	}
}