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/* --- BEGIN COPYRIGHT BLOCK ---
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2007 Red Hat, Inc.
* All rights reserved.
* --- END COPYRIGHT BLOCK ---
*/
#include "tkstool.h"
PK11SymKey *
TKS_RetrieveSymKey( PK11SlotInfo *slot,
char *keyname,
void *pwdata )
{
char *name = NULL;
int count = 0;
int keys_found = 0;
PK11SymKey *symKey = NULL;
PK11SymKey *nextSymKey = NULL;
PK11SymKey *rvSymKey = NULL;
if( PK11_NeedLogin( /* slot */ slot ) ) {
PK11_Authenticate(
/* slot */ slot,
/* load certs */ PR_TRUE,
/* wincx */ pwdata );
}
/* Initialize the symmetric key list. */
symKey = PK11_ListFixedKeysInSlot(
/* slot */ slot,
/* nickname */ NULL,
/* wincx */ ( void *) pwdata );
/* Iterate through the symmetric key list. */
while( symKey != NULL ) {
name = PK11_GetSymKeyNickname( /* symmetric key */ symKey );
if( name != NULL ) {
if( keyname != NULL ) {
if( PL_strcmp( keyname, name ) == 0 ) {
keys_found++;
}
}
}
nextSymKey = PK11_GetNextSymKey( /* symmetric key */ symKey );
PK11_FreeSymKey( /* symmetric key */ symKey );
symKey = nextSymKey;
count++;
}
/* case 1: the token is empty */
if( count == 0 ) {
/* the specified token is empty */
rvSymKey = NULL;
goto retrievedSymKey;
}
/* case 2: the specified key is not on this token */
if( ( keyname != NULL ) &&
( keys_found == 0 ) ) {
/* the key called "keyname" could not be found */
rvSymKey = NULL;
goto retrievedSymKey;
}
/* case 3: the specified key exists more than once on this token */
if( keys_found != 1 ) {
/* more than one key called "keyname" was found on this token */
rvSymKey = NULL;
goto retrievedSymKey;
} else {
/* Re-initialize the symmetric key list. */
symKey = PK11_ListFixedKeysInSlot(
/* slot */ slot,
/* nickname */ NULL,
/* wincx */ ( void *) pwdata );
/* Reiterate through the symmetric key list once more, */
/* this time returning an actual reference to the key. */
while( symKey != NULL ) {
name = PK11_GetSymKeyNickname( /* symmetric key */ symKey );
if( name != NULL ) {
if( keyname != NULL ) {
if( PL_strcmp( keyname, name ) == 0 ) {
rvSymKey = symKey;
goto retrievedSymKey;
}
}
}
nextSymKey = PK11_GetNextSymKey( /* symmetric key */ symKey );
PK11_FreeSymKey( /* symmetric key */ symKey );
symKey = nextSymKey;
}
}
retrievedSymKey:
return rvSymKey;
}
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