/*
             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
                   non-exclusive, worldwide, royalty-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.

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                   non-exclusive, worldwide, royalty-free patent
                   license under Licensed Patents to make, use, sell,
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                   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
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                   not apply to any other combinations which include
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                   c) Recipient understands that although each
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                   Contributions set forth herein, no assurances are
                   provided by any Contributor that the Program does
                   not infringe the patent or other intellectual
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                   for claims brought by any other entity based on
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                   hereby assumes sole responsibility to secure any
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                   For example, if a third party patent license is
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                   acquire that license before distributing the
                   Program.

                   d) Each Contributor represents that to its
                   knowledge it has sufficient copyright rights in its
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                   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:
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                   iii) states that any provisions which differ from
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                   iv) states that source code for the Program is
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                   on or through a medium customarily used for
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             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
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             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
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             4. COMMERCIAL DISTRIBUTION

             Commercial distributors of software may accept certain
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             facilitate the commercial use of the Program, the
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             Contributors related to those performance claims and
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             5. NO WARRANTY

             EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE
             PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT
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             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,
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             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 cross-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 cross-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          */


// loadsave.c
//
// routines associated with loading/saving files
//
//

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <alloca.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ipc.h>
#include <sys/file.h>
#include <errno.h>

#include <pwd.h>
#include <grp.h>

#include "pkcs11types.h"
#include "defs.h"
#include "host_defs.h"
#include "h_extern.h"
#include "tok_spec_struct.h"
#include "pkcs32.h"

#include "../api/apiproto.h"

void
set_perm(int file)
{
   struct group *grp;

   // Set absolute permissions or rw-rw-r--
   fchmod(file,S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);

   grp = getgrnam("pkcs11"); // Obtain the group id
   if (grp){
	   fchown(file,getuid(),grp->gr_gid);  // set ownership to root, and pkcs11 group
   }
}

//
//
CK_RV
load_token_data()
{
   FILE        * fp;
   CK_BYTE     fname[PATH_MAX];
   TOKEN_DATA    td;
   CK_RV         rc;


   sprintf((char *)fname,"%s/%s",(char *)pk_dir, PK_LITE_NV);

   rc = XProcLock( xproclock );
   if (rc != CKR_OK){
      st_err_log(150, __FILE__, __LINE__);
      goto out_nolock;
   }

   fp = fopen((char *)fname, "r");
   if (!fp) {
      /* Better error checking added */
      if (errno == ENOENT) {
         /* init_token_data may call save_token_data, which graps the 
          * xproclock, so we must release it around this call */
         XProcUnLock( xproclock );
         init_token_data();
         rc = XProcLock( xproclock );
         if (rc != CKR_OK){
            st_err_log(150, __FILE__, __LINE__);
            goto out_nolock;
         }

         fp = fopen((char *)fname, "r");
         if (!fp) {
            // were really hosed here since the created
            // did not occur
	    LogError("failed opening %s for read: %s", fname, strerror(errno));
            rc = CKR_FUNCTION_FAILED;
            goto out_unlock;
         }
      } else {
         /* Could not open file for some unknown reason */
         st_err_log(194, __FILE__, __LINE__, PK_LITE_NV, errno);
         rc = CKR_FUNCTION_FAILED;
         goto out_unlock;
      }
   }
   set_perm(fileno(fp));

   rc = fread( &td, sizeof(TOKEN_DATA), 1, fp );
   fclose(fp);

   if (rc == 0) {
      rc = CKR_FUNCTION_FAILED;
      goto out_unlock;
   }

   memcpy(nv_token_data, &td, sizeof(TOKEN_DATA) );

   rc = CKR_OK;

out_unlock:
   XProcUnLock( xproclock );

out_nolock:
   return rc;
}


//
//
CK_RV
save_token_data()
{
   FILE       *fp;
   TOKEN_DATA  td;
   CK_RV       rc;
   CK_BYTE     fname[PATH_MAX];
   fpos_t      fpos;

   sprintf((char *)fname,"%s/%s",pk_dir, PK_LITE_NV);

   rc = XProcLock( xproclock );
   if (rc != CKR_OK){
      st_err_log(150, __FILE__, __LINE__);
      goto out_nolock;
   }

   fp = fopen((char *)fname, "r+");
   if (!fp){
      fp = fopen((char *)fname, "w");
      if (!fp) {
         st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
         rc = CKR_FUNCTION_FAILED;
         goto done;
      }
   }
   set_perm(fileno(fp));

   memcpy( &td, nv_token_data, sizeof(TOKEN_DATA) );
   
   (void)fwrite( &td, sizeof(TOKEN_DATA), 1, fp );
   fclose(fp);

   rc = CKR_OK;

done:
   XProcUnLock( xproclock );

out_nolock:
   return rc;
}


//
//
CK_RV
save_token_object( OBJECT *obj )
{
   FILE      * fp = NULL;
   CK_BYTE     line[100];
   CK_RV       rc;
   CK_BYTE     fname[PATH_MAX];

   if (object_is_private(obj) == TRUE)
      rc = save_private_token_object( obj );
   else
      rc = save_public_token_object( obj );

   if (rc != CKR_OK){
      st_err_log(104, __FILE__, __LINE__);
      return rc;
   }
   // update the index file if it exists
   //
   sprintf((char *)fname,"%s/%s/%s",pk_dir,PK_LITE_OBJ_DIR,PK_LITE_OBJ_IDX);

   fp = fopen( (char *)fname, "r" );
   if (fp) {
	set_perm(fileno(fp));
      while (!feof(fp)) {
         (void)fgets((char *)line, 50, fp );
         if (!feof(fp)) {
            line[ strlen((char *)line)-1 ] = 0;
            if (strcmp((char *)line,(char *)( obj->name)) == 0) {
               fclose(fp);
               return CKR_OK;  // object is already in the list
            }
         }
      }
      fclose(fp);
   }


   // we didn't find it...either the index file doesn't exist or this
   // is a new object...
   //
   fp = fopen((char *)fname, "a");
   if (!fp){
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      return CKR_FUNCTION_FAILED;
   }
   set_perm(fileno(fp));

   set_perm(fileno(fp));
   fprintf( fp, "%s\n", obj->name );
   fclose(fp);

   return CKR_OK;
}


// this is the same as the old version.  public token objects are stored in the
// clear
//
CK_RV
save_public_token_object( OBJECT *obj )
{
   FILE       * fp       = NULL;
   CK_BYTE    * cleartxt = NULL;
   CK_BYTE      fname[PATH_MAX];
   CK_ULONG     cleartxt_len;
   CK_BBOOL     flag = FALSE;
   CK_RV        rc;
   CK_ULONG_32  total_len;


   sprintf( (char *)fname,"%s/%s/", pk_dir,PK_LITE_OBJ_DIR);

   strncat( (char *)fname, (char *) obj->name, 8 );

   rc = object_flatten( obj, &cleartxt, &cleartxt_len );
   if (rc != CKR_OK){
      st_err_log(101, __FILE__, __LINE__);
      goto error;
   }
   fp = fopen( (char *)fname, "w" );
   if (!fp) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto error;
   }

   set_perm(fileno(fp));

   total_len = cleartxt_len + sizeof(CK_ULONG_32) + sizeof(CK_BBOOL);

   (void)fwrite( &total_len, sizeof(CK_ULONG_32), 1, fp );
   (void)fwrite( &flag,      sizeof(CK_BBOOL), 1, fp );
   (void)fwrite( cleartxt,   cleartxt_len,     1, fp );

   fclose( fp );
   free( cleartxt );

   return CKR_OK;

error:
   if (fp)  fclose( fp );
   if (cleartxt) free( cleartxt );
   return rc;
}


//
//
CK_RV
save_private_token_object( OBJECT *obj )
{
   FILE             * fp        = NULL;
   CK_BYTE          * obj_data  = NULL;
   CK_BYTE          * cleartxt  = NULL;
   CK_BYTE          * ciphertxt = NULL;
   CK_BYTE          * ptr       = NULL;
   CK_BYTE            fname[100];
   CK_BYTE            hash_sha[SHA1_HASH_SIZE];
   CK_BYTE            des3_key[3 * DES_KEY_SIZE];
   CK_ULONG           obj_data_len,cleartxt_len, ciphertxt_len;
   CK_ULONG           padded_len;
   CK_BBOOL           flag;
   CK_RV              rc;
   CK_ULONG_32        obj_data_len_32;
   CK_ULONG_32        total_len;


   sprintf( (char *)fname,"%s/%s/", pk_dir,PK_LITE_OBJ_DIR);

   rc = object_flatten( obj, &obj_data, &obj_data_len );
   obj_data_len_32 = obj_data_len;
   if (rc != CKR_OK){
      st_err_log(101, __FILE__, __LINE__);
      goto error;
   }
   //
   // format for the object file:
   //    private flag
   //    ---- begin encrypted part        <--+
   //       length of object data            |
   //       object data                      +---- sensitive part
   //       SHA of (object data)             |
   //    ---- end encrypted part          <--+
   //
   compute_sha( obj_data, obj_data_len, hash_sha );

   // encrypt the sensitive object data.  need to be careful.
   // if I use the normal high-level encryption routines I'll need to
   // create a tepmorary key object containing the master key, perform the
   // encryption, then destroy the key object.  There is a race condition
   // here if the application is multithreaded (if a thread-switch occurs,
   // the other application thread could do a FindObject and be able to access
   // the master key object.
   //
   // So I have to use the low-level encryption routines.
   //
   memcpy( des3_key, master_key, 3*DES_KEY_SIZE );

   cleartxt_len = sizeof(CK_ULONG_32) + obj_data_len_32 + SHA1_HASH_SIZE;
   padded_len   = DES_BLOCK_SIZE * (cleartxt_len / DES_BLOCK_SIZE + 1);

   cleartxt  = (CK_BYTE *)malloc( padded_len );
   ciphertxt = (CK_BYTE *)malloc( padded_len );
   if (!cleartxt || !ciphertxt) {
      st_err_log(0, __FILE__, __LINE__);
      rc = CKR_HOST_MEMORY;
      goto error;
   }

   ciphertxt_len = padded_len;

   ptr = cleartxt;
   memcpy( ptr, &obj_data_len_32, sizeof(CK_ULONG_32) );  ptr += sizeof(CK_ULONG_32);
   memcpy( ptr,  obj_data,     obj_data_len_32     );  ptr += obj_data_len_32;
   memcpy( ptr,  hash_sha,     SHA1_HASH_SIZE   );

   add_pkcs_padding( cleartxt + cleartxt_len, DES_BLOCK_SIZE, cleartxt_len, padded_len );

#ifndef  CLEARTEXT
	// SAB  XXX some crypto libraries expect to be able to change th einitial vector.
	// so we will enable that by a local variable

{
   CK_BYTE *initial_vector=NULL;
	
   initial_vector = (CK_BYTE *)alloca(strlen("10293847")+5);
   if (initial_vector) {	
      memcpy(initial_vector, "10293847", strlen("10293847"));
      rc = ckm_des3_cbc_encrypt( cleartxt,    padded_len,
				 ciphertxt,  &ciphertxt_len,
			         initial_vector, des3_key );
   } else {
      rc=CKR_FUNCTION_FAILED;
   }
}
#else
   memcpy(ciphertxt, cleartxt, padded_len);
   rc = CKR_OK;
#endif
   if (rc != CKR_OK){
      st_err_log(105, __FILE__, __LINE__);
      goto error;
   }

   strncat( (char *)fname,(char *) obj->name, 8 );

   fp = fopen( (char *)fname, "w" );
   if (!fp) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto error;
   }

   set_perm(fileno(fp));

   total_len = sizeof(CK_ULONG_32) + sizeof(CK_BBOOL) + ciphertxt_len;

   flag = TRUE;

   (void)fwrite( &total_len, sizeof(CK_ULONG_32), 1, fp );
   (void)fwrite( &flag,      sizeof(CK_BBOOL), 1, fp );
   (void)fwrite( ciphertxt,  ciphertxt_len,    1, fp );

   fclose( fp );

   free( obj_data  );
   free( cleartxt  );
   free( ciphertxt );
   return CKR_OK;

error:
   if (fp)  fclose( fp );

   if (obj_data)  free( obj_data  );
   if (cleartxt)  free( cleartxt  );
   if (ciphertxt) free( ciphertxt );

   return rc;
}


//
//
CK_RV
load_public_token_objects( void )
{
   FILE     *fp1 = NULL, *fp2 = NULL;
   CK_BYTE  *buf = NULL;
   CK_BYTE   tmp[PATH_MAX], fname[PATH_MAX], iname[PATH_MAX];
   CK_BBOOL  priv;
   CK_ULONG_32  size;


   sprintf((char *)iname,"%s/%s/%s",pk_dir,PK_LITE_OBJ_DIR, PK_LITE_OBJ_IDX);

   fp1 = fopen((char *)iname, "r");
   if (!fp1)
      return CKR_OK;  // no token objects

   while (!feof(fp1)) {
      (void)fgets( (char *)tmp, 50, fp1 );
      if (!feof(fp1)) {
         tmp[ strlen((char *)tmp)-1 ] = 0;

	 sprintf((char *)fname,"%s/%s/",pk_dir, PK_LITE_OBJ_DIR);
         strcat((char *)fname, (char *)tmp );

         fp2 = fopen( (char *)fname, "r" );
         if (!fp2)
            continue;

         fread( &size, sizeof(CK_ULONG_32), 1, fp2 );
         fread( &priv, sizeof(CK_BBOOL), 1, fp2 );
         if (priv == TRUE) {
            fclose( fp2 );
            continue;
         }

         // size--;
	 size = size -sizeof(CK_ULONG_32) - sizeof(CK_BBOOL);
         buf = (CK_BYTE *)malloc(size);
         if (!buf) {
            fclose(fp1);
            fclose(fp2);
            st_err_log(0, __FILE__, __LINE__);
            return CKR_HOST_MEMORY;
         }

         fread( buf, size, 1, fp2 );

         // ... grab object mutex here.
         MY_LockMutex(&obj_list_mutex);
         object_mgr_restore_obj( buf, NULL );
         MY_UnlockMutex(&obj_list_mutex);
         free( buf );
         fclose( fp2 );
      }
   }
   fclose(fp1);

   return CKR_OK;
}


//
//
CK_RV
load_private_token_objects( void )
{
   FILE     *fp1 = NULL, *fp2 = NULL;
   CK_BYTE  *buf = NULL;
   CK_BYTE   tmp[PATH_MAX], fname[PATH_MAX], iname[PATH_MAX];
   CK_BBOOL  priv;
   CK_ULONG_32  size;
   CK_RV     rc;


   sprintf((char *)iname,"%s/%s/%s",pk_dir,PK_LITE_OBJ_DIR, PK_LITE_OBJ_IDX);

   fp1 = fopen((char *)iname, "r");
   if (!fp1)
      return CKR_OK;  // no token objects

   while (!feof(fp1)) {
      (void)fgets((char *) tmp, 50, fp1 );
      if (!feof(fp1)) {
         tmp[ strlen((char *)tmp)-1 ] = 0;

	 sprintf((char *)fname,"%s/%s/",pk_dir,PK_LITE_OBJ_DIR);
         strcat((char *)fname,(char *) tmp );

         fp2 = fopen( (char *)fname, "r" );
         if (!fp2)
            continue;

         fread( &size, sizeof(CK_ULONG_32), 1, fp2 );
         fread( &priv, sizeof(CK_BBOOL), 1, fp2 );
         if (priv == FALSE) {
            fclose( fp2 );
            continue;
         }

         //size--;
	 size = size - sizeof(CK_ULONG_32) - sizeof(CK_BBOOL);
         buf = (CK_BYTE *)malloc(size);
         if (!buf) {
            st_err_log(0, __FILE__, __LINE__);
            rc = CKR_HOST_MEMORY;
            goto error;
         }

         rc = fread( (char *)buf, size, 1, fp2 );
         if (rc != 1) {
            st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
            rc = CKR_FUNCTION_FAILED;
            goto error;
         }

// Grab object list  mutex
	MY_LockMutex(&obj_list_mutex);
         rc = restore_private_token_object( buf, size, NULL );
	MY_UnlockMutex(&obj_list_mutex);
         if (rc != CKR_OK){
            st_err_log(107, __FILE__, __LINE__);
            goto error;
         }

         free( buf );
         fclose( fp2 );
      }
   }
   fclose(fp1);

   return CKR_OK;

error:
   if (buf)  free( buf );
   if (fp1)  fclose( fp1 );
   if (fp2)  fclose( fp2 );
   return rc;
}


//
//
CK_RV
restore_private_token_object( CK_BYTE  * data,
                              CK_ULONG   len,
                              OBJECT   * pObj )
{
   CK_BYTE          * cleartxt  = NULL;
   CK_BYTE          * obj_data  = NULL;
   CK_BYTE          * ciphertxt = NULL;
   CK_BYTE          * ptr       = NULL;
   CK_BYTE            des3_key[3 * DES_KEY_SIZE];
   CK_BYTE            hash_sha[SHA1_HASH_SIZE];
   CK_ULONG           cleartxt_len, obj_data_len;
   CK_RV              rc;

   // format for the object data:
   //    (private flag has already been read at this point)
   //    ---- begin encrypted part
   //       length of object data
   //       object data
   //       SHA of object data
   //    ---- end encrypted part
   //

   cleartxt_len = len;

   cleartxt  = (CK_BYTE *)malloc(len);
   if (!cleartxt) {
      st_err_log(0, __FILE__, __LINE__);
      rc = CKR_HOST_MEMORY;
      goto done;
   }

   ciphertxt = data;

   // decrypt the encrypted chunk
   //
   memcpy( des3_key, master_key, 3*DES_KEY_SIZE );

#ifndef  CLEARTEXT
{
   CK_BYTE *initial_vector=NULL;

   initial_vector = (CK_BYTE *)alloca(strlen("10293847")+5);
   if (initial_vector) {
      memcpy(initial_vector, "10293847", strlen("10293847"));
      rc = ckm_des3_cbc_decrypt( ciphertxt,    len,
                                 cleartxt,  &len,
                                 initial_vector, des3_key );
   } else {
      rc=CKR_FUNCTION_FAILED;
   }
}
#else
   memcpy(cleartxt, ciphertxt, len);
   rc = CKR_OK;
#endif
 
   if (rc != CKR_OK){
      st_err_log(106, __FILE__, __LINE__);
      goto done;
   }

   strip_pkcs_padding( cleartxt, len, &cleartxt_len );

   // if the padding extraction didn't work it means the object was tampered with or
   // the key was incorrect
   //
   if (cleartxt_len > len) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   ptr = cleartxt;

   obj_data_len = *(CK_ULONG_32 *)ptr;
   ptr += sizeof(CK_ULONG_32);
   obj_data = ptr;

   // check the hash
   //
   compute_sha( ptr, obj_data_len, hash_sha );
   ptr += obj_data_len;

   if (memcmp(ptr, hash_sha, SHA1_HASH_SIZE) != 0) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   // okay.  at this point, we're satisfied that nobody has tampered with the
   // token object...
   //

   object_mgr_restore_obj( obj_data, pObj );
   rc = CKR_OK;

done:
   if (cleartxt)  free( cleartxt );

   return rc;
}


//
//
CK_RV
load_masterkey_so( void )
{
   FILE               * fp  = NULL;
   CK_BYTE              hash_sha[SHA1_HASH_SIZE];
   CK_BYTE              cipher[sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE];
   CK_BYTE              clear [sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE];
   CK_BYTE              des3_key[3 * DES_KEY_SIZE];
   MASTER_KEY_FILE_T    mk;
   CK_ULONG             cipher_len, clear_len;
   CK_RV                rc;
   CK_BYTE              fname[PATH_MAX];


   sprintf((char *)fname,"%s/MK_SO",pk_dir);

   memset( master_key, 0x0, 3*DES_KEY_SIZE );

   // this file gets created on C_InitToken so we can assume that it always exists
   //
   fp = fopen((char *)fname, "r");
   if (!fp) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   set_perm(fileno(fp));
   clear_len = cipher_len = (sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE - 1) & ~(DES_BLOCK_SIZE - 1);

   rc = fread( cipher, cipher_len, 1, fp );
   if (rc != 1) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   // decrypt the master key data using the MD5 of the SO key
   // (we can't use the SHA of the SO key since the SHA of the key is stored
   // in the token data file).
   //
   memcpy( des3_key,                 so_pin_md5, MD5_HASH_SIZE );
   memcpy( des3_key + MD5_HASH_SIZE, so_pin_md5, DES_KEY_SIZE  );

#ifndef CLEARTEXT
{
   CK_BYTE *initial_vector=NULL;

   initial_vector = (CK_BYTE *)alloca(strlen("12345678")+5);
   if (initial_vector) {
      memcpy(initial_vector, "12345678", strlen("12345678"));
      rc = ckm_des3_cbc_decrypt( cipher,  cipher_len,
                                 clear,  &clear_len,
                                 initial_vector, des3_key );
   } else {
      rc=CKR_FUNCTION_FAILED;
   }
}
#else
   memcpy(clear, cipher, cipher_len);
   rc = CKR_OK;
#endif

   if (rc != CKR_OK){
      st_err_log(106, __FILE__, __LINE__);
      goto done;
   }
   memcpy( (CK_BYTE *)&mk, clear, sizeof(mk) );

   //
   // technically should strip PKCS padding here but since I already know what
   // the length should be, I don't bother.
   //


   // compare the hashes
   //
   compute_sha( mk.key, 3 * DES_KEY_SIZE, hash_sha );

   if (memcmp(hash_sha, mk.sha_hash, SHA1_HASH_SIZE) != 0) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   memcpy( master_key, mk.key, 3*DES_KEY_SIZE );
   rc = CKR_OK;

done:
   if (fp)  fclose(fp);
   return rc;
}


//
//
CK_RV
load_masterkey_user( void )
{
   FILE               * fp  = NULL;
   CK_BYTE              hash_sha[SHA1_HASH_SIZE];
   CK_BYTE              cipher[sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE];
   CK_BYTE              clear[sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE];
   CK_BYTE              des3_key[3 * DES_KEY_SIZE];
   MASTER_KEY_FILE_T    mk;
   CK_ULONG             cipher_len, clear_len;
   CK_RV                rc;
   CK_BYTE              fname[PATH_MAX];


   sprintf((char *)fname,"%s/MK_USER",pk_dir);

   memset( master_key, 0x0, 3*DES_KEY_SIZE );

   // this file gets created on C_InitToken so we can assume that it always exists
   //
   fp = fopen( (char *)fname, "r" );
   if (!fp) {
      LogError("fopen(%s): %s", fname, strerror(errno));
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   set_perm(fileno(fp));
   clear_len = cipher_len = (sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE - 1) & ~(DES_BLOCK_SIZE - 1);

   rc = fread( cipher, cipher_len, 1, fp );
   if (rc != 1) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   // decrypt the master key data using the MD5 of the SO key
   // (we can't use the SHA of the SO key since the SHA of the key is stored
   // in the token data file).
   //
   memcpy( des3_key,                 user_pin_md5, MD5_HASH_SIZE );
   memcpy( des3_key + MD5_HASH_SIZE, user_pin_md5, DES_KEY_SIZE  );

#ifndef CLEARTEXT
{
   CK_BYTE *initial_vector=NULL;

   initial_vector = (CK_BYTE *)alloca(strlen("12345678")+5);
   if (initial_vector) {
      memcpy(initial_vector, "12345678", strlen("12345678"));
      rc = ckm_des3_cbc_decrypt( cipher,  cipher_len,
                                 clear,  &clear_len,
                                 initial_vector, des3_key );
   } else {
      rc=CKR_FUNCTION_FAILED;
   }
}
#else
   memcpy(clear, cipher, cipher_len);
   rc = CKR_OK;
#endif

   if (rc != CKR_OK){
      st_err_log(106, __FILE__, __LINE__);
      goto done;
   }
   memcpy( (CK_BYTE *)&mk, clear, sizeof(mk) );

   //
   // technically should strip PKCS padding here but since I already know what
   // the length should be, I don't bother.
   //


   // compare the hashes
   //
   compute_sha( mk.key, 3 * DES_KEY_SIZE, hash_sha );

   if (memcmp(hash_sha, mk.sha_hash, SHA1_HASH_SIZE) != 0) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   memcpy( master_key, mk.key, 3*DES_KEY_SIZE );
   rc = CKR_OK;

done:
   if (fp)  fclose(fp);
   return rc;
}


//
//
CK_RV
save_masterkey_so( void )
{
   FILE             * fp = NULL;
   CK_BYTE            cleartxt [sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE];
   CK_BYTE            ciphertxt[sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE];
   CK_BYTE            des3_key[3 * DES_KEY_SIZE];
   MASTER_KEY_FILE_T  mk;
   CK_ULONG           cleartxt_len, ciphertxt_len, padded_len;
   CK_RV              rc;
   CK_BYTE            fname[PATH_MAX];


   memcpy( mk.key, master_key, 3 * DES_KEY_SIZE);

   compute_sha( master_key, 3 * DES_KEY_SIZE, mk.sha_hash );

   // encrypt the key data
   //
   memcpy( des3_key,                 so_pin_md5, MD5_HASH_SIZE );
   memcpy( des3_key + MD5_HASH_SIZE, so_pin_md5, DES_KEY_SIZE  );

   ciphertxt_len = sizeof(ciphertxt);
   cleartxt_len  = sizeof(mk);
   memcpy( cleartxt, &mk, cleartxt_len );

   padded_len = DES_BLOCK_SIZE * (cleartxt_len / DES_BLOCK_SIZE + 1);
   add_pkcs_padding( cleartxt + cleartxt_len, DES_BLOCK_SIZE, cleartxt_len, padded_len );

#ifndef CLEARTEXT
{
   CK_BYTE *initial_vector=NULL;

   initial_vector = (CK_BYTE *)alloca(strlen("12345678"));
   if (initial_vector) {
      memcpy(initial_vector, "12345678", strlen("12345678"));
      rc = ckm_des3_cbc_encrypt( cleartxt,    padded_len,
                                 ciphertxt,  &ciphertxt_len,
                                 initial_vector, des3_key );
   } else {
      rc=CKR_FUNCTION_FAILED;
   }
}
#else
   memcpy(ciphertxt, cleartxt, padded_len);
   rc = CKR_OK;
#endif

   if (rc != CKR_OK){
      st_err_log(105, __FILE__, __LINE__);
      goto done;
   }

   // write the file
   //
   // probably ought to ensure the permissions are correct
   //
   sprintf((char *)fname,"%s/MK_SO",pk_dir);
   fp = fopen( (char *)fname, "w" );
   if (!fp) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }
   set_perm(fileno(fp));

   rc = fwrite( ciphertxt, ciphertxt_len, 1, fp );
   if (rc != 1) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   rc = CKR_OK;

done:
   if (fp)  fclose( fp );
   return rc;
}


//
//
CK_RV
save_masterkey_user( void )
{
   FILE             * fp = NULL;
   CK_BYTE            cleartxt [sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE];
   CK_BYTE            ciphertxt[sizeof(MASTER_KEY_FILE_T) + DES_BLOCK_SIZE];
   CK_BYTE            des3_key[3 * DES_KEY_SIZE];
   MASTER_KEY_FILE_T  mk;
   CK_ULONG           cleartxt_len, ciphertxt_len, padded_len;
   CK_RV              rc;
   CK_BYTE            fname[PATH_MAX];

   memcpy( mk.key, master_key, 3 * DES_KEY_SIZE);

   compute_sha( master_key, 3 * DES_KEY_SIZE, mk.sha_hash );


   // encrypt the key data
   //
   memcpy( des3_key,                 user_pin_md5, MD5_HASH_SIZE );
   memcpy( des3_key + MD5_HASH_SIZE, user_pin_md5, DES_KEY_SIZE  );

   ciphertxt_len = sizeof(ciphertxt);
   cleartxt_len  = sizeof(mk);
   memcpy( cleartxt, &mk, cleartxt_len );

   padded_len = DES_BLOCK_SIZE * (cleartxt_len / DES_BLOCK_SIZE + 1);
   add_pkcs_padding( cleartxt + cleartxt_len, DES_BLOCK_SIZE, cleartxt_len, padded_len );

#ifndef CLEARTEXT
{
   CK_BYTE *initial_vector=NULL;

   initial_vector = (CK_BYTE *)alloca(strlen("12345678")+5);
   if (initial_vector) {
      memcpy(initial_vector, "12345678", strlen("12345678"));
      rc = ckm_des3_cbc_encrypt( cleartxt,    padded_len,
                                 ciphertxt,  &ciphertxt_len,
                                 initial_vector, des3_key );
   } else {
      rc=CKR_FUNCTION_FAILED;
   }
}
#else
   memcpy(ciphertxt, cleartxt, padded_len);
   rc = CKR_OK;
#endif

   if (rc != CKR_OK){
      st_err_log(105, __FILE__, __LINE__);
      goto done;
   }


   // write the file
   //
   // probably ought to ensure the permissions are correct
   //
   sprintf((char *)fname,"%s/MK_USER", pk_dir);
   fp = fopen( (char *)fname, "w" );
   if (!fp) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   set_perm(fileno(fp));
   rc = fwrite( ciphertxt, ciphertxt_len, 1, fp );
   if (rc != 1) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   rc = CKR_OK;

done:
   if (fp)  fclose( fp );
   return rc;
}


//
//
CK_RV
reload_token_object( OBJECT *obj )
{
   FILE     * fp  = NULL;
   CK_BYTE  * buf = NULL;
   CK_BYTE    fname[PATH_MAX];
   CK_BBOOL   priv;
   CK_ULONG_32   size;
   CK_ULONG   size_64;
   CK_RV      rc;


   memset( (char *)fname, 0x0, sizeof(fname) );

   sprintf((char *)fname,"%s/%s/",pk_dir, PK_LITE_OBJ_DIR);

   strncat((char *)fname,(char *)  obj->name, 8 );

   fp = fopen( (char *)fname, "r" );
   if (!fp) {
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      rc = CKR_FUNCTION_FAILED;
      goto done;
   }

   set_perm(fileno(fp));

   fread( &size, sizeof(CK_ULONG_32), 1, fp );
   fread( &priv, sizeof(CK_BBOOL), 1, fp );

   size = size - sizeof(CK_ULONG_32) - sizeof(CK_BBOOL);  // SAB

   buf = (CK_BYTE *)malloc(size);
   if (!buf) {
      st_err_log(0, __FILE__, __LINE__);
      rc = CKR_HOST_MEMORY;
      goto done;
   }

   fread( buf, size, 1, fp );

   size_64 = size;

   if (priv){
      rc = restore_private_token_object( buf, size_64, obj );
      if (rc != CKR_OK)
         st_err_log(107, __FILE__, __LINE__);
   }
   else{
      rc = object_mgr_restore_obj( buf, obj );
      if (rc != CKR_OK)
         st_err_log(108, __FILE__, __LINE__);
   }

done:
   if (fp)  fclose( fp );
   if (buf) free( buf );
   return rc;
}



extern void set_perm(int) ;

//
//
CK_RV
delete_token_object( OBJECT *obj )
{
   FILE      *fp1, *fp2;
   CK_BYTE    line[100];
   CK_BYTE    objidx[PATH_MAX], idxtmp[PATH_MAX], fname[PATH_MAX];


   sprintf((char *)objidx,"%s/%s/%s",pk_dir, PK_LITE_OBJ_DIR,PK_LITE_OBJ_IDX);
   sprintf((char *)idxtmp,"%s/%s/%s",pk_dir, PK_LITE_OBJ_DIR, "IDX.TMP");

   // FIXME:  on UNIX, we need to make sure these guys aren't symlinks
   //         before we blindly write to these files...
   //

   // remove the object from the index file
   //

   fp1 = fopen((char *)objidx, "r");
   fp2 = fopen((char *)idxtmp, "w");
   if (!fp1 || !fp2) {
      if (fp1) fclose(fp1);
      if (fp2) fclose(fp2);
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      return CKR_FUNCTION_FAILED;
   }

   set_perm(fileno(fp2));

   while (!feof(fp1)) {
      (void)fgets((char *)line, 50, fp1 );
      if (!feof(fp1)) {
         line[ strlen((char *)line)-1 ] = 0;
         if (strcmp((char *)line, (char *)obj->name) == 0)
            continue;
         else
            fprintf( fp2, "%s\n", line );
      }
   }

   fclose(fp1);
   fclose(fp2);
   fp2 = fopen((char *)objidx, "w");
   fp1 = fopen((char *)idxtmp, "r");
   if (!fp1 || !fp2) {
      if (fp1) fclose(fp1);
      if (fp2) fclose(fp2);
      st_err_log(4, __FILE__, __LINE__, __FUNCTION__);
      return CKR_FUNCTION_FAILED;
   }

   set_perm(fileno(fp2));

   while (!feof(fp1)) {
      (void)fgets((char *)line, 50, fp1 );
      if (!feof(fp1))
         fprintf( fp2, "%s",(char *) line );
   }

   fclose(fp1);
   fclose(fp2);

   sprintf((char *)fname,"%s/%s/%s",pk_dir, PK_LITE_OBJ_DIR,(char *)obj->name);
   unlink((char *)fname);
   return CKR_OK;

}