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/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* 
 *  The following code handles the storage of PKCS 11 modules used by the
 * NSS. This file is written to abstract away how the modules are
 * stored so we can deside that later.
 */
#include "pkcs11i.h"
#include "sdb.h"
#include "prprf.h" 
#include "prenv.h"
#include "utilpars.h"

#define FREE_CLEAR(p) if (p) { PORT_Free(p); p = NULL; }

static void
sftk_parseTokenFlags(char *tmp, sftk_token_parameters *parsed) { 
    parsed->readOnly = NSSUTIL_ArgHasFlag("flags","readOnly",tmp);
    parsed->noCertDB = NSSUTIL_ArgHasFlag("flags","noCertDB",tmp);
    parsed->noKeyDB = NSSUTIL_ArgHasFlag("flags","noKeyDB",tmp);
    parsed->forceOpen = NSSUTIL_ArgHasFlag("flags","forceOpen",tmp);
    parsed->pwRequired = NSSUTIL_ArgHasFlag("flags","passwordRequired",tmp);
    parsed->optimizeSpace = NSSUTIL_ArgHasFlag("flags","optimizeSpace",tmp);
    return;
}

static void
sftk_parseFlags(char *tmp, sftk_parameters *parsed) { 
    parsed->noModDB = NSSUTIL_ArgHasFlag("flags","noModDB",tmp);
    parsed->readOnly = NSSUTIL_ArgHasFlag("flags","readOnly",tmp);
    /* keep legacy interface working */
    parsed->noCertDB = NSSUTIL_ArgHasFlag("flags","noCertDB",tmp);
    parsed->forceOpen = NSSUTIL_ArgHasFlag("flags","forceOpen",tmp);
    parsed->pwRequired = NSSUTIL_ArgHasFlag("flags","passwordRequired",tmp);
    parsed->optimizeSpace = NSSUTIL_ArgHasFlag("flags","optimizeSpace",tmp);
    return;
}

static CK_RV
sftk_parseTokenParameters(char *param, sftk_token_parameters *parsed) 
{
    int next;
    char *tmp = NULL;
    char *index;
    index = NSSUTIL_ArgStrip(param);

    while (*index) {
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->configdir,"configDir=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->updatedir,"updateDir=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->updCertPrefix,
						"updateCertPrefix=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->updKeyPrefix,
						"updateKeyPrefix=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->updateID,"updateID=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->certPrefix,"certPrefix=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->keyPrefix,"keyPrefix=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->tokdes,"tokenDescription=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->updtokdes,
						"updateTokenDescription=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->slotdes,"slotDescription=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,tmp,"minPWLen=", 
	   if(tmp) { parsed->minPW=atoi(tmp); PORT_Free(tmp); tmp = NULL; })
	NSSUTIL_HANDLE_STRING_ARG(index,tmp,"flags=", 
	   if(tmp) { sftk_parseTokenFlags(param,parsed); PORT_Free(tmp); 
		     tmp = NULL; })
	NSSUTIL_HANDLE_FINAL_ARG(index)
   }
   return CKR_OK;
}

static void
sftk_parseTokens(char *tokenParams, sftk_parameters *parsed)
{
    char *tokenIndex;
    sftk_token_parameters *tokens = NULL;
    int i=0,count = 0,next;

    if ((tokenParams == NULL) || (*tokenParams == 0))  return;

    /* first count the number of slots */
    for (tokenIndex = NSSUTIL_ArgStrip(tokenParams); *tokenIndex;
	 tokenIndex = NSSUTIL_ArgStrip(NSSUTIL_ArgSkipParameter(tokenIndex))) {
	count++;
    }

    /* get the data structures */
    tokens = (sftk_token_parameters *) 
			PORT_ZAlloc(count*sizeof(sftk_token_parameters));
    if (tokens == NULL) return;

    for (tokenIndex = NSSUTIL_ArgStrip(tokenParams), i = 0;
					*tokenIndex && i < count ; i++ ) {
	char *name;
	name = NSSUTIL_ArgGetLabel(tokenIndex,&next);
	tokenIndex += next;

	tokens[i].slotID = NSSUTIL_ArgDecodeNumber(name);
        tokens[i].readOnly = PR_FALSE;
	tokens[i].noCertDB = PR_FALSE;
	tokens[i].noKeyDB = PR_FALSE;
	if (!NSSUTIL_ArgIsBlank(*tokenIndex)) {
	    char *args = NSSUTIL_ArgFetchValue(tokenIndex,&next);
	    tokenIndex += next;
	    if (args) {
		sftk_parseTokenParameters(args,&tokens[i]);
		PORT_Free(args);
	    }
	}
	if (name) PORT_Free(name);
	tokenIndex = NSSUTIL_ArgStrip(tokenIndex);
    }
    parsed->token_count = i;
    parsed->tokens = tokens;
    return; 
}

CK_RV
sftk_parseParameters(char *param, sftk_parameters *parsed, PRBool isFIPS) 
{
    int next;
    char *tmp = NULL;
    char *index;
    char *certPrefix = NULL, *keyPrefix = NULL;
    char *tokdes = NULL, *ptokdes = NULL, *pupdtokdes = NULL;
    char *slotdes = NULL, *pslotdes = NULL;
    char *fslotdes = NULL, *ftokdes = NULL;
    char *minPW = NULL;
    index = NSSUTIL_ArgStrip(param);

    PORT_Memset(parsed, 0, sizeof(sftk_parameters));

    while (*index) {
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->configdir,"configDir=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->updatedir,"updateDir=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->updateID,"updateID=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->secmodName,"secmod=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->man,"manufacturerID=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,parsed->libdes,"libraryDescription=",;)
	/* constructed values, used so legacy interfaces still work */
	NSSUTIL_HANDLE_STRING_ARG(index,certPrefix,"certPrefix=",;)
        NSSUTIL_HANDLE_STRING_ARG(index,keyPrefix,"keyPrefix=",;)
        NSSUTIL_HANDLE_STRING_ARG(index,tokdes,"cryptoTokenDescription=",;)
        NSSUTIL_HANDLE_STRING_ARG(index,ptokdes,"dbTokenDescription=",;)
        NSSUTIL_HANDLE_STRING_ARG(index,slotdes,"cryptoSlotDescription=",;)
        NSSUTIL_HANDLE_STRING_ARG(index,pslotdes,"dbSlotDescription=",;)
        NSSUTIL_HANDLE_STRING_ARG(index,fslotdes,"FIPSSlotDescription=",;)
        NSSUTIL_HANDLE_STRING_ARG(index,ftokdes,"FIPSTokenDescription=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,pupdtokdes, "updateTokenDescription=",;)
	NSSUTIL_HANDLE_STRING_ARG(index,minPW,"minPWLen=",;)

	NSSUTIL_HANDLE_STRING_ARG(index,tmp,"flags=", 
		if(tmp) { sftk_parseFlags(param,parsed); PORT_Free(tmp); 
			  tmp = NULL; })
	NSSUTIL_HANDLE_STRING_ARG(index,tmp,"tokens=", 
		if(tmp) { sftk_parseTokens(tmp,parsed); PORT_Free(tmp); 				  tmp = NULL; })
	NSSUTIL_HANDLE_FINAL_ARG(index)
    }
    if (parsed->tokens == NULL) {
	int  count = isFIPS ? 1 : 2;
	int  index = count-1;
	sftk_token_parameters *tokens = NULL;

	tokens = (sftk_token_parameters *) 
			PORT_ZAlloc(count*sizeof(sftk_token_parameters));
	if (tokens == NULL) {
	    goto loser;
	}
	parsed->tokens = tokens;
    	parsed->token_count = count;
	tokens[index].slotID = isFIPS ? FIPS_SLOT_ID : PRIVATE_KEY_SLOT_ID;
	tokens[index].certPrefix = certPrefix;
	tokens[index].keyPrefix = keyPrefix;
	tokens[index].minPW = minPW ? atoi(minPW) : 0;
	tokens[index].readOnly = parsed->readOnly;
	tokens[index].noCertDB = parsed->noCertDB;
	tokens[index].noKeyDB = parsed->noCertDB;
	tokens[index].forceOpen = parsed->forceOpen;
	tokens[index].pwRequired = parsed->pwRequired;
	tokens[index].optimizeSpace = parsed->optimizeSpace;
	tokens[0].optimizeSpace = parsed->optimizeSpace;
	certPrefix = NULL;
	keyPrefix = NULL;
	if (isFIPS) {
	    tokens[index].tokdes = ftokdes;
	    tokens[index].updtokdes = pupdtokdes;
	    tokens[index].slotdes = fslotdes;
	    fslotdes = NULL;
	    ftokdes = NULL;
	    pupdtokdes = NULL;
	} else {
	    tokens[index].tokdes = ptokdes;
	    tokens[index].updtokdes = pupdtokdes;
	    tokens[index].slotdes = pslotdes;
	    tokens[0].slotID = NETSCAPE_SLOT_ID;
	    tokens[0].tokdes = tokdes;
	    tokens[0].slotdes = slotdes;
	    tokens[0].noCertDB = PR_TRUE;
	    tokens[0].noKeyDB = PR_TRUE;
	    pupdtokdes = NULL;
	    ptokdes = NULL;
	    pslotdes = NULL;
	    tokdes = NULL;
	    slotdes = NULL;
	}
    }

loser:
    FREE_CLEAR(certPrefix);
    FREE_CLEAR(keyPrefix);
    FREE_CLEAR(tokdes);
    FREE_CLEAR(ptokdes);
    FREE_CLEAR(pupdtokdes);
    FREE_CLEAR(slotdes);
    FREE_CLEAR(pslotdes);
    FREE_CLEAR(fslotdes);
    FREE_CLEAR(ftokdes);
    FREE_CLEAR(minPW);
    return CKR_OK;
}

void
sftk_freeParams(sftk_parameters *params)
{
    int i;

    for (i=0; i < params->token_count; i++) {
	FREE_CLEAR(params->tokens[i].configdir);
	FREE_CLEAR(params->tokens[i].certPrefix);
	FREE_CLEAR(params->tokens[i].keyPrefix);
	FREE_CLEAR(params->tokens[i].tokdes);
	FREE_CLEAR(params->tokens[i].slotdes);
	FREE_CLEAR(params->tokens[i].updatedir);
	FREE_CLEAR(params->tokens[i].updCertPrefix);
	FREE_CLEAR(params->tokens[i].updKeyPrefix);
	FREE_CLEAR(params->tokens[i].updateID);
	FREE_CLEAR(params->tokens[i].updtokdes);
    }

    FREE_CLEAR(params->configdir);
    FREE_CLEAR(params->secmodName);
    FREE_CLEAR(params->man);
    FREE_CLEAR(params->libdes); 
    FREE_CLEAR(params->tokens);
    FREE_CLEAR(params->updatedir);
    FREE_CLEAR(params->updateID);
}