ed9c8d8e32
duplicate the functions in lib/util/pqgutil.c. Also, the functions in pqgutil correctly handle the case where the Params or Verify was constructed without an arena (a fact which is now more obvious when reading the code there). git-svn-id: svn://10.0.0.236/trunk@78320 18797224-902f-48f8-a5cc-f745e15eee43
268 lines
8.9 KiB
C
268 lines
8.9 KiB
C
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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#include "pqgutil.h"
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#include "prerror.h"
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#include "secitem.h"
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#define PQG_DEFAULT_CHUNKSIZE 2048 /* bytes */
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/**************************************************************************
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* Return a pointer to a new PQGParams struct that is a duplicate of *
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* the one passed as an argument. *
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* Return NULL on failure, or if NULL was passed in. *
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* *
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**************************************************************************/
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PQGParams *
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PQG_DupParams(const PQGParams *src)
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{
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PRArenaPool *arena;
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PQGParams *dest;
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SECStatus status;
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if (src == NULL) {
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PORT_SetError(PR_INVALID_ARGUMENT_ERROR);
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return NULL;
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}
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arena = PORT_NewArena(PQG_DEFAULT_CHUNKSIZE);
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if (arena == NULL)
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goto loser;
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dest = (PQGParams*)PORT_ArenaZAlloc(arena, sizeof(PQGParams));
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if (dest == NULL)
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goto loser;
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dest->arena = arena;
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status = SECITEM_CopyItem(arena, &dest->prime, &src->prime);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->subPrime, &src->subPrime);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->base, &src->base);
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if (status != SECSuccess)
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goto loser;
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return dest;
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loser:
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if (arena != NULL)
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PORT_FreeArena(arena, PR_FALSE);
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return NULL;
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}
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/**************************************************************************
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* Return a pointer to a new PQGParams struct that is constructed from *
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* copies of the arguments passed in. *
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* Return NULL on failure. *
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**************************************************************************/
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PQGParams *
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PQG_NewParams(const SECItem * prime, const SECItem * subPrime,
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const SECItem * base)
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{
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PQGParams * dest;
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PQGParams src;
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src.arena = NULL;
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src.prime = *prime;
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src.subPrime = *subPrime;
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src.base = *base;
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dest = PQG_DupParams(&src);
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return dest;
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}
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/**************************************************************************
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* Fills in caller's "prime" SECItem with the prime value in params.
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* Contents can be freed by calling SECITEM_FreeItem(prime, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetPrimeFromParams(const PQGParams *params, SECItem * prime)
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{
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return SECITEM_CopyItem(NULL, prime, ¶ms->prime);
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}
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/**************************************************************************
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* Fills in caller's "subPrime" SECItem with the prime value in params.
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* Contents can be freed by calling SECITEM_FreeItem(subPrime, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetSubPrimeFromParams(const PQGParams *params, SECItem * subPrime)
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{
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return SECITEM_CopyItem(NULL, subPrime, ¶ms->subPrime);
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}
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/**************************************************************************
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* Fills in caller's "base" SECItem with the base value in params.
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* Contents can be freed by calling SECITEM_FreeItem(base, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetBaseFromParams(const PQGParams *params, SECItem * base)
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{
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return SECITEM_CopyItem(NULL, base, ¶ms->base);
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}
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/**************************************************************************
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* Free the PQGParams struct and the things it points to. *
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**************************************************************************/
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void
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PQG_DestroyParams(PQGParams *params)
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{
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if (params == NULL)
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return;
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if (params->arena != NULL) {
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PORT_FreeArena(params->arena, PR_FALSE); /* don't zero it */
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} else {
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SECITEM_FreeItem(¶ms->prime, PR_FALSE); /* don't free prime */
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SECITEM_FreeItem(¶ms->subPrime, PR_FALSE); /* don't free subPrime */
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SECITEM_FreeItem(¶ms->base, PR_FALSE); /* don't free base */
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PORT_Free(params);
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}
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}
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/**************************************************************************
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* Return a pointer to a new PQGVerify struct that is a duplicate of *
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* the one passed as an argument. *
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* Return NULL on failure, or if NULL was passed in. *
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**************************************************************************/
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PQGVerify *
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PQG_DupVerify(const PQGVerify *src)
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{
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PRArenaPool *arena;
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PQGVerify * dest;
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SECStatus status;
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if (src == NULL) {
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PORT_SetError(PR_INVALID_ARGUMENT_ERROR);
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return NULL;
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}
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arena = PORT_NewArena(PQG_DEFAULT_CHUNKSIZE);
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if (arena == NULL)
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goto loser;
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dest = (PQGVerify*)PORT_ArenaZAlloc(arena, sizeof(PQGVerify));
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if (dest == NULL)
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goto loser;
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dest->arena = arena;
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dest->counter = src->counter;
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status = SECITEM_CopyItem(arena, &dest->seed, &src->seed);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->h, &src->h);
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if (status != SECSuccess)
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goto loser;
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return dest;
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loser:
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if (arena != NULL)
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PORT_FreeArena(arena, PR_FALSE);
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return NULL;
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}
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/**************************************************************************
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* Return a pointer to a new PQGVerify struct that is constructed from *
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* copies of the arguments passed in. *
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* Return NULL on failure. *
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**************************************************************************/
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PQGVerify *
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PQG_NewVerify(unsigned int counter, const SECItem * seed, const SECItem * h)
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{
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PQGVerify * dest;
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PQGVerify src;
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src.arena = NULL;
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src.counter = counter;
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src.seed = *seed;
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src.h = *h;
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dest = PQG_DupVerify(&src);
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return dest;
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}
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/**************************************************************************
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* Returns the "counter" value from the PQGVerify.
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**************************************************************************/
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unsigned int
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PQG_GetCounterFromVerify(const PQGVerify *verify)
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{
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return verify->counter;
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}
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/**************************************************************************
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* Fills in caller's "seed" SECItem with the seed value in verify.
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* Contents can be freed by calling SECITEM_FreeItem(seed, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetSeedFromVerify(const PQGVerify *verify, SECItem * seed)
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{
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return SECITEM_CopyItem(NULL, seed, &verify->seed);
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}
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/**************************************************************************
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* Fills in caller's "h" SECItem with the h value in verify.
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* Contents can be freed by calling SECITEM_FreeItem(h, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetHFromVerify(const PQGVerify *verify, SECItem * h)
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{
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return SECITEM_CopyItem(NULL, h, &verify->h);
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}
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/**************************************************************************
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* Free the PQGVerify struct and the things it points to. *
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**************************************************************************/
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void
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PQG_DestroyVerify(PQGVerify *vfy)
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{
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if (vfy == NULL)
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return;
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if (vfy->arena != NULL) {
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PORT_FreeArena(vfy->arena, PR_FALSE); /* don't zero it */
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} else {
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SECITEM_FreeItem(&vfy->seed, PR_FALSE); /* don't free seed */
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SECITEM_FreeItem(&vfy->h, PR_FALSE); /* don't free h */
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PORT_Free(vfy);
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}
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}
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