diff options
Diffstat (limited to 'security/nss/lib/ckfw/nssmkey/mfind.c')
| -rw-r--r-- | security/nss/lib/ckfw/nssmkey/mfind.c | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/security/nss/lib/ckfw/nssmkey/mfind.c b/security/nss/lib/ckfw/nssmkey/mfind.c new file mode 100644 index 000000000..d193a8de7 --- /dev/null +++ b/security/nss/lib/ckfw/nssmkey/mfind.c @@ -0,0 +1,352 @@ +/* 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/. */ + +#ifndef CKMK_H +#include "ckmk.h" +#endif /* CKMK_H */ + +/* + * nssmkey/mfind.c + * + * This file implements the NSSCKMDFindObjects object for the + * "nssmkey" cryptoki module. + */ + +struct ckmkFOStr { + NSSArena *arena; + CK_ULONG n; + CK_ULONG i; + ckmkInternalObject **objs; +}; + +static void +ckmk_mdFindObjects_Final( + NSSCKMDFindObjects *mdFindObjects, + NSSCKFWFindObjects *fwFindObjects, + NSSCKMDSession *mdSession, + NSSCKFWSession *fwSession, + NSSCKMDToken *mdToken, + NSSCKFWToken *fwToken, + NSSCKMDInstance *mdInstance, + NSSCKFWInstance *fwInstance) +{ + struct ckmkFOStr *fo = (struct ckmkFOStr *)mdFindObjects->etc; + NSSArena *arena = fo->arena; + PRUint32 i; + + /* walk down an free the unused 'objs' */ + for (i = fo->i; i < fo->n; i++) { + nss_ckmk_DestroyInternalObject(fo->objs[i]); + } + + nss_ZFreeIf(fo->objs); + nss_ZFreeIf(fo); + nss_ZFreeIf(mdFindObjects); + if ((NSSArena *)NULL != arena) { + NSSArena_Destroy(arena); + } + + return; +} + +static NSSCKMDObject * +ckmk_mdFindObjects_Next( + NSSCKMDFindObjects *mdFindObjects, + NSSCKFWFindObjects *fwFindObjects, + NSSCKMDSession *mdSession, + NSSCKFWSession *fwSession, + NSSCKMDToken *mdToken, + NSSCKFWToken *fwToken, + NSSCKMDInstance *mdInstance, + NSSCKFWInstance *fwInstance, + NSSArena *arena, + CK_RV *pError) +{ + struct ckmkFOStr *fo = (struct ckmkFOStr *)mdFindObjects->etc; + ckmkInternalObject *io; + + if (fo->i == fo->n) { + *pError = CKR_OK; + return (NSSCKMDObject *)NULL; + } + + io = fo->objs[fo->i]; + fo->i++; + + return nss_ckmk_CreateMDObject(arena, io, pError); +} + +static CK_BBOOL +ckmk_attrmatch( + CK_ATTRIBUTE_PTR a, + ckmkInternalObject *o) +{ + PRBool prb; + const NSSItem *b; + CK_RV error; + + b = nss_ckmk_FetchAttribute(o, a->type, &error); + if (b == NULL) { + return CK_FALSE; + } + + if (a->ulValueLen != b->size) { + /* match a decoded serial number */ + if ((a->type == CKA_SERIAL_NUMBER) && (a->ulValueLen < b->size)) { + int len; + unsigned char *data; + + data = nss_ckmk_DERUnwrap(b->data, b->size, &len, NULL); + if ((len == a->ulValueLen) && + nsslibc_memequal(a->pValue, data, len, (PRStatus *)NULL)) { + return CK_TRUE; + } + } + return CK_FALSE; + } + + prb = nsslibc_memequal(a->pValue, b->data, b->size, (PRStatus *)NULL); + + if (PR_TRUE == prb) { + return CK_TRUE; + } else { + return CK_FALSE; + } +} + +static CK_BBOOL +ckmk_match( + CK_ATTRIBUTE_PTR pTemplate, + CK_ULONG ulAttributeCount, + ckmkInternalObject *o) +{ + CK_ULONG i; + + for (i = 0; i < ulAttributeCount; i++) { + if (CK_FALSE == ckmk_attrmatch(&pTemplate[i], o)) { + return CK_FALSE; + } + } + + /* Every attribute passed */ + return CK_TRUE; +} + +#define CKMK_ITEM_CHUNK 20 + +#define PUT_OBJECT(obj, err, size, count, list) \ + { \ + if (count >= size) { \ + (list) = (list) ? nss_ZREALLOCARRAY(list, ckmkInternalObject *, \ + ((size) + \ + CKMK_ITEM_CHUNK)) \ + : nss_ZNEWARRAY(NULL, ckmkInternalObject *, \ + ((size) + \ + CKMK_ITEM_CHUNK)); \ + if ((ckmkInternalObject **)NULL == list) { \ + err = CKR_HOST_MEMORY; \ + goto loser; \ + } \ + (size) += CKMK_ITEM_CHUNK; \ + } \ + (list)[count] = (obj); \ + count++; \ + } + +/* find all the certs that represent the appropriate object (cert, priv key, or + * pub key) in the cert store. + */ +static PRUint32 +collect_class( + CK_OBJECT_CLASS objClass, + SecItemClass itemClass, + CK_ATTRIBUTE_PTR pTemplate, + CK_ULONG ulAttributeCount, + ckmkInternalObject ***listp, + PRUint32 *sizep, + PRUint32 count, + CK_RV *pError) +{ + ckmkInternalObject *next = NULL; + SecKeychainSearchRef searchRef = 0; + SecKeychainItemRef itemRef = 0; + OSStatus error; + + /* future, build the attribute list based on the template + * so we can refine the search */ + error = SecKeychainSearchCreateFromAttributes( + NULL, itemClass, NULL, &searchRef); + + while (noErr == SecKeychainSearchCopyNext(searchRef, &itemRef)) { + /* if we don't have an internal object structure, get one */ + if ((ckmkInternalObject *)NULL == next) { + next = nss_ZNEW(NULL, ckmkInternalObject); + if ((ckmkInternalObject *)NULL == next) { + *pError = CKR_HOST_MEMORY; + goto loser; + } + } + /* fill in the relevant object data */ + next->type = ckmkItem; + next->objClass = objClass; + next->u.item.itemRef = itemRef; + next->u.item.itemClass = itemClass; + + /* see if this is one of the objects we are looking for */ + if (CK_TRUE == ckmk_match(pTemplate, ulAttributeCount, next)) { + /* yes, put it on the list */ + PUT_OBJECT(next, *pError, *sizep, count, *listp); + next = NULL; /* this one is on the list, need to allocate a new one now */ + } else { + /* no , release the current item and clear out the structure for reuse */ + CFRelease(itemRef); + /* don't cache the values we just loaded */ + nsslibc_memset(next, 0, sizeof(*next)); + } + } +loser: + if (searchRef) { + CFRelease(searchRef); + } + nss_ZFreeIf(next); + return count; +} + +static PRUint32 +collect_objects( + CK_ATTRIBUTE_PTR pTemplate, + CK_ULONG ulAttributeCount, + ckmkInternalObject ***listp, + CK_RV *pError) +{ + PRUint32 i; + PRUint32 count = 0; + PRUint32 size = 0; + CK_OBJECT_CLASS objClass; + + /* + * first handle the static build in objects (if any) + */ + for (i = 0; i < nss_ckmk_nObjects; i++) { + ckmkInternalObject *o = (ckmkInternalObject *)&nss_ckmk_data[i]; + + if (CK_TRUE == ckmk_match(pTemplate, ulAttributeCount, o)) { + PUT_OBJECT(o, *pError, size, count, *listp); + } + } + + /* + * now handle the various object types + */ + objClass = nss_ckmk_GetULongAttribute(CKA_CLASS, + pTemplate, ulAttributeCount, pError); + if (CKR_OK != *pError) { + objClass = CK_INVALID_HANDLE; + } + *pError = CKR_OK; + switch (objClass) { + case CKO_CERTIFICATE: + count = collect_class(objClass, kSecCertificateItemClass, + pTemplate, ulAttributeCount, listp, + &size, count, pError); + break; + case CKO_PUBLIC_KEY: + count = collect_class(objClass, CSSM_DL_DB_RECORD_PUBLIC_KEY, + pTemplate, ulAttributeCount, listp, + &size, count, pError); + break; + case CKO_PRIVATE_KEY: + count = collect_class(objClass, CSSM_DL_DB_RECORD_PRIVATE_KEY, + pTemplate, ulAttributeCount, listp, + &size, count, pError); + break; + /* all of them */ + case CK_INVALID_HANDLE: + count = collect_class(CKO_CERTIFICATE, kSecCertificateItemClass, + pTemplate, ulAttributeCount, listp, + &size, count, pError); + count = collect_class(CKO_PUBLIC_KEY, CSSM_DL_DB_RECORD_PUBLIC_KEY, + pTemplate, ulAttributeCount, listp, + &size, count, pError); + count = collect_class(CKO_PUBLIC_KEY, CSSM_DL_DB_RECORD_PRIVATE_KEY, + pTemplate, ulAttributeCount, listp, + &size, count, pError); + break; + default: + break; + } + if (CKR_OK != *pError) { + goto loser; + } + + return count; +loser: + nss_ZFreeIf(*listp); + return 0; +} + +NSS_IMPLEMENT NSSCKMDFindObjects * +nss_ckmk_FindObjectsInit( + NSSCKFWSession *fwSession, + CK_ATTRIBUTE_PTR pTemplate, + CK_ULONG ulAttributeCount, + CK_RV *pError) +{ + /* This could be made more efficient. I'm rather rushed. */ + NSSArena *arena; + NSSCKMDFindObjects *rv = (NSSCKMDFindObjects *)NULL; + struct ckmkFOStr *fo = (struct ckmkFOStr *)NULL; + ckmkInternalObject **temp = (ckmkInternalObject **)NULL; + + arena = NSSArena_Create(); + if ((NSSArena *)NULL == arena) { + goto loser; + } + + rv = nss_ZNEW(arena, NSSCKMDFindObjects); + if ((NSSCKMDFindObjects *)NULL == rv) { + *pError = CKR_HOST_MEMORY; + goto loser; + } + + fo = nss_ZNEW(arena, struct ckmkFOStr); + if ((struct ckmkFOStr *)NULL == fo) { + *pError = CKR_HOST_MEMORY; + goto loser; + } + + fo->arena = arena; + /* fo->n and fo->i are already zero */ + + rv->etc = (void *)fo; + rv->Final = ckmk_mdFindObjects_Final; + rv->Next = ckmk_mdFindObjects_Next; + rv->null = (void *)NULL; + + fo->n = collect_objects(pTemplate, ulAttributeCount, &temp, pError); + if (*pError != CKR_OK) { + goto loser; + } + + fo->objs = nss_ZNEWARRAY(arena, ckmkInternalObject *, fo->n); + if ((ckmkInternalObject **)NULL == fo->objs) { + *pError = CKR_HOST_MEMORY; + goto loser; + } + + (void)nsslibc_memcpy(fo->objs, temp, sizeof(ckmkInternalObject *) * fo->n); + nss_ZFreeIf(temp); + temp = (ckmkInternalObject **)NULL; + + return rv; + +loser: + nss_ZFreeIf(temp); + nss_ZFreeIf(fo); + nss_ZFreeIf(rv); + if ((NSSArena *)NULL != arena) { + NSSArena_Destroy(arena); + } + return (NSSCKMDFindObjects *)NULL; +} |