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RetroZilla/security/nss/lib/pki/tdcache.c
Ryan Nematz 2f2ae146c0 first commit
2015-10-20 23:03:22 -04:00

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape security libraries.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifdef DEBUG
static const char CVS_ID[] = "@(#) $RCSfile: tdcache.c,v $ $Revision: 1.48 $ $Date: 2008/11/19 16:08:05 $";
#endif /* DEBUG */
#ifndef PKIM_H
#include "pkim.h"
#endif /* PKIM_H */
#ifndef PKIT_H
#include "pkit.h"
#endif /* PKIT_H */
#ifndef NSSPKI_H
#include "nsspki.h"
#endif /* NSSPKI_H */
#ifndef PKI_H
#include "pki.h"
#endif /* PKI_H */
#ifndef NSSBASE_H
#include "nssbase.h"
#endif /* NSSBASE_H */
#ifndef BASE_H
#include "base.h"
#endif /* BASE_H */
#include "cert.h"
#include "dev.h"
#include "pki3hack.h"
#ifdef DEBUG_CACHE
static PRLogModuleInfo *s_log = NULL;
#endif
#ifdef DEBUG_CACHE
static void log_item_dump(const char *msg, NSSItem *it)
{
char buf[33];
int i, j;
for (i=0; i<10 && i<it->size; i++) {
sprintf(&buf[2*i], "%02X", ((PRUint8 *)it->data)[i]);
}
if (it->size>10) {
sprintf(&buf[2*i], "..");
i += 1;
for (j=it->size-1; i<=16 && j>10; i++, j--) {
sprintf(&buf[2*i], "%02X", ((PRUint8 *)it->data)[j]);
}
}
PR_LOG(s_log, PR_LOG_DEBUG, ("%s: %s", msg, buf));
}
#endif
#ifdef DEBUG_CACHE
static void log_cert_ref(const char *msg, NSSCertificate *c)
{
PR_LOG(s_log, PR_LOG_DEBUG, ("%s: %s", msg,
(c->nickname) ? c->nickname : c->email));
log_item_dump("\tserial", &c->serial);
log_item_dump("\tsubject", &c->subject);
}
#endif
/* Certificate cache routines */
/* XXX
* Locking is not handled well at all. A single, global lock with sub-locks
* in the collection types. Cleanup needed.
*/
/* should it live in its own arena? */
struct nssTDCertificateCacheStr
{
PZLock *lock;
NSSArena *arena;
nssHash *issuerAndSN;
nssHash *subject;
nssHash *nickname;
nssHash *email;
};
struct cache_entry_str
{
union {
NSSCertificate *cert;
nssList *list;
void *value;
} entry;
PRUint32 hits;
PRTime lastHit;
NSSArena *arena;
NSSUTF8 *nickname;
};
typedef struct cache_entry_str cache_entry;
static cache_entry *
new_cache_entry(NSSArena *arena, void *value, PRBool ownArena)
{
cache_entry *ce = nss_ZNEW(arena, cache_entry);
if (ce) {
ce->entry.value = value;
ce->hits = 1;
ce->lastHit = PR_Now();
if (ownArena) {
ce->arena = arena;
}
ce->nickname = NULL;
}
return ce;
}
/* this should not be exposed in a header, but is here to keep the above
* types/functions static
*/
NSS_IMPLEMENT PRStatus
nssTrustDomain_InitializeCache (
NSSTrustDomain *td,
PRUint32 cacheSize
)
{
NSSArena *arena;
nssTDCertificateCache *cache = td->cache;
#ifdef DEBUG_CACHE
s_log = PR_NewLogModule("nss_cache");
PR_ASSERT(s_log);
#endif
PR_ASSERT(!cache);
arena = nssArena_Create();
if (!arena) {
return PR_FAILURE;
}
cache = nss_ZNEW(arena, nssTDCertificateCache);
if (!cache) {
nssArena_Destroy(arena);
return PR_FAILURE;
}
cache->lock = PZ_NewLock(nssILockCache);
if (!cache->lock) {
nssArena_Destroy(arena);
return PR_FAILURE;
}
/* Create the issuer and serial DER --> certificate hash */
cache->issuerAndSN = nssHash_CreateCertificate(arena, cacheSize);
if (!cache->issuerAndSN) {
goto loser;
}
/* Create the subject DER --> subject list hash */
cache->subject = nssHash_CreateItem(arena, cacheSize);
if (!cache->subject) {
goto loser;
}
/* Create the nickname --> subject list hash */
cache->nickname = nssHash_CreateString(arena, cacheSize);
if (!cache->nickname) {
goto loser;
}
/* Create the email --> list of subject lists hash */
cache->email = nssHash_CreateString(arena, cacheSize);
if (!cache->email) {
goto loser;
}
cache->arena = arena;
td->cache = cache;
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("Cache initialized."));
#endif
return PR_SUCCESS;
loser:
PZ_DestroyLock(cache->lock);
nssArena_Destroy(arena);
td->cache = NULL;
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("Cache initialization failed."));
#endif
return PR_FAILURE;
}
/* The entries of the hashtable are currently dependent on the certificate(s)
* that produced them. That is, the entries will be freed when the cert is
* released from the cache. If there are certs in the cache at any time,
* including shutdown, the hash table entries will hold memory. In order for
* clean shutdown, it is necessary for there to be no certs in the cache.
*/
extern const NSSError NSS_ERROR_INTERNAL_ERROR;
extern const NSSError NSS_ERROR_BUSY;
NSS_IMPLEMENT PRStatus
nssTrustDomain_DestroyCache (
NSSTrustDomain *td
)
{
if (!td->cache) {
nss_SetError(NSS_ERROR_INTERNAL_ERROR);
return PR_FAILURE;
}
if (nssHash_Count(td->cache->issuerAndSN) > 0) {
nss_SetError(NSS_ERROR_BUSY);
return PR_FAILURE;
}
PZ_DestroyLock(td->cache->lock);
nssHash_Destroy(td->cache->issuerAndSN);
nssHash_Destroy(td->cache->subject);
nssHash_Destroy(td->cache->nickname);
nssHash_Destroy(td->cache->email);
nssArena_Destroy(td->cache->arena);
td->cache = NULL;
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("Cache destroyed."));
#endif
return PR_SUCCESS;
}
static PRStatus
remove_issuer_and_serial_entry (
nssTDCertificateCache *cache,
NSSCertificate *cert
)
{
/* Remove the cert from the issuer/serial hash */
nssHash_Remove(cache->issuerAndSN, cert);
#ifdef DEBUG_CACHE
log_cert_ref("removed issuer/sn", cert);
#endif
return PR_SUCCESS;
}
static PRStatus
remove_subject_entry (
nssTDCertificateCache *cache,
NSSCertificate *cert,
nssList **subjectList,
NSSUTF8 **nickname,
NSSArena **arena
)
{
PRStatus nssrv;
cache_entry *ce;
*subjectList = NULL;
*arena = NULL;
/* Get the subject list for the cert's subject */
ce = (cache_entry *)nssHash_Lookup(cache->subject, &cert->subject);
if (ce) {
/* Remove the cert from the subject hash */
nssList_Remove(ce->entry.list, cert);
*subjectList = ce->entry.list;
*nickname = ce->nickname;
*arena = ce->arena;
nssrv = PR_SUCCESS;
#ifdef DEBUG_CACHE
log_cert_ref("removed cert", cert);
log_item_dump("from subject list", &cert->subject);
#endif
} else {
nssrv = PR_FAILURE;
}
return nssrv;
}
static PRStatus
remove_nickname_entry (
nssTDCertificateCache *cache,
NSSUTF8 *nickname,
nssList *subjectList
)
{
PRStatus nssrv;
if (nickname) {
nssHash_Remove(cache->nickname, nickname);
nssrv = PR_SUCCESS;
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("removed nickname %s", nickname));
#endif
} else {
nssrv = PR_FAILURE;
}
return nssrv;
}
static PRStatus
remove_email_entry (
nssTDCertificateCache *cache,
NSSCertificate *cert,
nssList *subjectList
)
{
PRStatus nssrv = PR_FAILURE;
cache_entry *ce;
/* Find the subject list in the email hash */
if (cert->email) {
ce = (cache_entry *)nssHash_Lookup(cache->email, cert->email);
if (ce) {
nssList *subjects = ce->entry.list;
/* Remove the subject list from the email hash */
nssList_Remove(subjects, subjectList);
#ifdef DEBUG_CACHE
log_item_dump("removed subject list", &cert->subject);
PR_LOG(s_log, PR_LOG_DEBUG, ("for email %s", cert->email));
#endif
if (nssList_Count(subjects) == 0) {
/* No more subject lists for email, delete list and
* remove hash entry
*/
(void)nssList_Destroy(subjects);
nssHash_Remove(cache->email, cert->email);
/* there are no entries left for this address, free space
* used for email entries
*/
nssArena_Destroy(ce->arena);
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("removed email %s", cert->email));
#endif
}
nssrv = PR_SUCCESS;
}
}
return nssrv;
}
NSS_IMPLEMENT void
nssTrustDomain_RemoveCertFromCacheLOCKED (
NSSTrustDomain *td,
NSSCertificate *cert
)
{
nssList *subjectList;
cache_entry *ce;
NSSArena *arena;
NSSUTF8 *nickname;
#ifdef DEBUG_CACHE
log_cert_ref("attempt to remove cert", cert);
#endif
ce = (cache_entry *)nssHash_Lookup(td->cache->issuerAndSN, cert);
if (!ce || ce->entry.cert != cert) {
/* If it's not in the cache, or a different cert is (this is really
* for safety reasons, though it shouldn't happen), do nothing
*/
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("but it wasn't in the cache"));
#endif
return;
}
(void)remove_issuer_and_serial_entry(td->cache, cert);
(void)remove_subject_entry(td->cache, cert, &subjectList,
&nickname, &arena);
if (nssList_Count(subjectList) == 0) {
(void)remove_nickname_entry(td->cache, nickname, subjectList);
(void)remove_email_entry(td->cache, cert, subjectList);
(void)nssList_Destroy(subjectList);
nssHash_Remove(td->cache->subject, &cert->subject);
/* there are no entries left for this subject, free the space used
* for both the nickname and subject entries
*/
if (arena) {
nssArena_Destroy(arena);
}
}
}
NSS_IMPLEMENT void
nssTrustDomain_LockCertCache (
NSSTrustDomain *td
)
{
PZ_Lock(td->cache->lock);
}
NSS_IMPLEMENT void
nssTrustDomain_UnlockCertCache (
NSSTrustDomain *td
)
{
PZ_Unlock(td->cache->lock);
}
struct token_cert_dtor {
NSSToken *token;
nssTDCertificateCache *cache;
NSSCertificate **certs;
PRUint32 numCerts, arrSize;
};
static void
remove_token_certs(const void *k, void *v, void *a)
{
NSSCertificate *c = (NSSCertificate *)k;
nssPKIObject *object = &c->object;
struct token_cert_dtor *dtor = a;
PRUint32 i;
nssPKIObject_Lock(object);
for (i=0; i<object->numInstances; i++) {
if (object->instances[i]->token == dtor->token) {
nssCryptokiObject_Destroy(object->instances[i]);
object->instances[i] = object->instances[object->numInstances-1];
object->instances[object->numInstances-1] = NULL;
object->numInstances--;
dtor->certs[dtor->numCerts++] = c;
if (dtor->numCerts == dtor->arrSize) {
dtor->arrSize *= 2;
dtor->certs = nss_ZREALLOCARRAY(dtor->certs,
NSSCertificate *,
dtor->arrSize);
}
break;
}
}
nssPKIObject_Unlock(object);
return;
}
/*
* Remove all certs for the given token from the cache. This is
* needed if the token is removed.
*/
NSS_IMPLEMENT PRStatus
nssTrustDomain_RemoveTokenCertsFromCache (
NSSTrustDomain *td,
NSSToken *token
)
{
NSSCertificate **certs;
PRUint32 i, arrSize = 10;
struct token_cert_dtor dtor;
certs = nss_ZNEWARRAY(NULL, NSSCertificate *, arrSize);
if (!certs) {
return PR_FAILURE;
}
dtor.cache = td->cache;
dtor.token = token;
dtor.certs = certs;
dtor.numCerts = 0;
dtor.arrSize = arrSize;
PZ_Lock(td->cache->lock);
nssHash_Iterate(td->cache->issuerAndSN, remove_token_certs, (void *)&dtor);
for (i=0; i<dtor.numCerts; i++) {
if (dtor.certs[i]->object.numInstances == 0) {
nssTrustDomain_RemoveCertFromCacheLOCKED(td, dtor.certs[i]);
dtor.certs[i] = NULL; /* skip this cert in the second for loop */
}
}
PZ_Unlock(td->cache->lock);
for (i=0; i<dtor.numCerts; i++) {
if (dtor.certs[i]) {
STAN_ForceCERTCertificateUpdate(dtor.certs[i]);
}
}
nss_ZFreeIf(dtor.certs);
return PR_SUCCESS;
}
NSS_IMPLEMENT PRStatus
nssTrustDomain_UpdateCachedTokenCerts (
NSSTrustDomain *td,
NSSToken *token
)
{
NSSCertificate **cp, **cached = NULL;
nssList *certList;
PRUint32 count;
certList = nssList_Create(NULL, PR_FALSE);
if (!certList) return PR_FAILURE;
(void *)nssTrustDomain_GetCertsFromCache(td, certList);
count = nssList_Count(certList);
if (count > 0) {
cached = nss_ZNEWARRAY(NULL, NSSCertificate *, count + 1);
if (!cached) {
return PR_FAILURE;
}
nssList_GetArray(certList, (void **)cached, count);
nssList_Destroy(certList);
for (cp = cached; *cp; cp++) {
nssCryptokiObject *instance;
NSSCertificate *c = *cp;
nssTokenSearchType tokenOnly = nssTokenSearchType_TokenOnly;
instance = nssToken_FindCertificateByIssuerAndSerialNumber(
token,
NULL,
&c->issuer,
&c->serial,
tokenOnly,
NULL);
if (instance) {
nssPKIObject_AddInstance(&c->object, instance);
STAN_ForceCERTCertificateUpdate(c);
}
}
nssCertificateArray_Destroy(cached);
}
return PR_SUCCESS;
}
static PRStatus
add_issuer_and_serial_entry (
NSSArena *arena,
nssTDCertificateCache *cache,
NSSCertificate *cert
)
{
cache_entry *ce;
ce = new_cache_entry(arena, (void *)cert, PR_FALSE);
#ifdef DEBUG_CACHE
log_cert_ref("added to issuer/sn", cert);
#endif
return nssHash_Add(cache->issuerAndSN, cert, (void *)ce);
}
static PRStatus
add_subject_entry (
NSSArena *arena,
nssTDCertificateCache *cache,
NSSCertificate *cert,
NSSUTF8 *nickname,
nssList **subjectList
)
{
PRStatus nssrv;
nssList *list;
cache_entry *ce;
*subjectList = NULL; /* this is only set if a new one is created */
ce = (cache_entry *)nssHash_Lookup(cache->subject, &cert->subject);
if (ce) {
ce->hits++;
ce->lastHit = PR_Now();
/* The subject is already in, add this cert to the list */
nssrv = nssList_AddUnique(ce->entry.list, cert);
#ifdef DEBUG_CACHE
log_cert_ref("added to existing subject list", cert);
#endif
} else {
NSSDER *subject;
/* Create a new subject list for the subject */
list = nssList_Create(arena, PR_FALSE);
if (!list) {
return PR_FAILURE;
}
ce = new_cache_entry(arena, (void *)list, PR_TRUE);
if (!ce) {
return PR_FAILURE;
}
if (nickname) {
ce->nickname = nssUTF8_Duplicate(nickname, arena);
}
nssList_SetSortFunction(list, nssCertificate_SubjectListSort);
/* Add the cert entry to this list of subjects */
nssrv = nssList_AddUnique(list, cert);
if (nssrv != PR_SUCCESS) {
return nssrv;
}
/* Add the subject list to the cache */
subject = nssItem_Duplicate(&cert->subject, arena, NULL);
if (!subject) {
return PR_FAILURE;
}
nssrv = nssHash_Add(cache->subject, subject, ce);
if (nssrv != PR_SUCCESS) {
return nssrv;
}
*subjectList = list;
#ifdef DEBUG_CACHE
log_cert_ref("created subject list", cert);
#endif
}
return nssrv;
}
static PRStatus
add_nickname_entry (
NSSArena *arena,
nssTDCertificateCache *cache,
NSSUTF8 *certNickname,
nssList *subjectList
)
{
PRStatus nssrv = PR_SUCCESS;
cache_entry *ce;
ce = (cache_entry *)nssHash_Lookup(cache->nickname, certNickname);
if (ce) {
/* This is a collision. A nickname entry already exists for this
* subject, but a subject entry didn't. This would imply there are
* two subjects using the same nickname, which is not allowed.
*/
return PR_FAILURE;
} else {
NSSUTF8 *nickname;
ce = new_cache_entry(arena, subjectList, PR_FALSE);
if (!ce) {
return PR_FAILURE;
}
nickname = nssUTF8_Duplicate(certNickname, arena);
if (!nickname) {
return PR_FAILURE;
}
nssrv = nssHash_Add(cache->nickname, nickname, ce);
#ifdef DEBUG_CACHE
log_cert_ref("created nickname for", cert);
#endif
}
return nssrv;
}
static PRStatus
add_email_entry (
nssTDCertificateCache *cache,
NSSCertificate *cert,
nssList *subjectList
)
{
PRStatus nssrv = PR_SUCCESS;
nssList *subjects;
cache_entry *ce;
ce = (cache_entry *)nssHash_Lookup(cache->email, cert->email);
if (ce) {
/* Already have an entry for this email address, but not subject */
subjects = ce->entry.list;
nssrv = nssList_AddUnique(subjects, subjectList);
ce->hits++;
ce->lastHit = PR_Now();
#ifdef DEBUG_CACHE
log_cert_ref("added subject to email for", cert);
#endif
} else {
NSSASCII7 *email;
NSSArena *arena;
arena = nssArena_Create();
if (!arena) {
return PR_FAILURE;
}
/* Create a new list of subject lists, add this subject */
subjects = nssList_Create(arena, PR_TRUE);
if (!subjects) {
nssArena_Destroy(arena);
return PR_FAILURE;
}
/* Add the new subject to the list */
nssrv = nssList_AddUnique(subjects, subjectList);
if (nssrv != PR_SUCCESS) {
nssArena_Destroy(arena);
return nssrv;
}
/* Add the new entry to the cache */
ce = new_cache_entry(arena, (void *)subjects, PR_TRUE);
if (!ce) {
nssArena_Destroy(arena);
return PR_FAILURE;
}
email = nssUTF8_Duplicate(cert->email, arena);
if (!email) {
nssArena_Destroy(arena);
return PR_FAILURE;
}
nssrv = nssHash_Add(cache->email, email, ce);
if (nssrv != PR_SUCCESS) {
nssArena_Destroy(arena);
return nssrv;
}
#ifdef DEBUG_CACHE
log_cert_ref("created email for", cert);
#endif
}
return nssrv;
}
extern const NSSError NSS_ERROR_CERTIFICATE_IN_CACHE;
static void
remove_object_instances (
nssPKIObject *object,
nssCryptokiObject **instances,
int numInstances
)
{
int i;
for (i = 0; i < numInstances; i++) {
nssPKIObject_RemoveInstanceForToken(object, instances[i]->token);
}
}
static SECStatus
merge_object_instances (
nssPKIObject *to,
nssPKIObject *from
)
{
nssCryptokiObject **instances, **ci;
int i;
SECStatus rv = SECSuccess;
instances = nssPKIObject_GetInstances(from);
if (instances == NULL) {
return SECFailure;
}
for (ci = instances, i = 0; *ci; ci++, i++) {
nssCryptokiObject *instance = nssCryptokiObject_Clone(*ci);
if (instance) {
if (nssPKIObject_AddInstance(to, instance) == SECSuccess) {
continue;
}
nssCryptokiObject_Destroy(instance);
}
remove_object_instances(to, instances, i);
rv = SECFailure;
break;
}
nssCryptokiObjectArray_Destroy(instances);
return rv;
}
static NSSCertificate *
add_cert_to_cache (
NSSTrustDomain *td,
NSSCertificate *cert
)
{
NSSArena *arena = NULL;
nssList *subjectList = NULL;
PRStatus nssrv;
PRUint32 added = 0;
cache_entry *ce;
NSSCertificate *rvCert = NULL;
NSSUTF8 *certNickname = nssCertificate_GetNickname(cert, NULL);
PZ_Lock(td->cache->lock);
/* If it exists in the issuer/serial hash, it's already in all */
ce = (cache_entry *)nssHash_Lookup(td->cache->issuerAndSN, cert);
if (ce) {
ce->hits++;
ce->lastHit = PR_Now();
rvCert = nssCertificate_AddRef(ce->entry.cert);
#ifdef DEBUG_CACHE
log_cert_ref("attempted to add cert already in cache", cert);
#endif
PZ_Unlock(td->cache->lock);
/* collision - somebody else already added the cert
* to the cache before this thread got around to it.
*/
/* merge the instances of the cert */
if (merge_object_instances(&rvCert->object, &cert->object)
!= SECSuccess) {
nssCertificate_Destroy(rvCert);
return NULL;
}
STAN_ForceCERTCertificateUpdate(rvCert);
nssCertificate_Destroy(cert);
return rvCert;
}
/* create a new cache entry for this cert within the cert's arena*/
nssrv = add_issuer_and_serial_entry(cert->object.arena, td->cache, cert);
if (nssrv != PR_SUCCESS) {
goto loser;
}
added++;
/* create an arena for the nickname and subject entries */
arena = nssArena_Create();
if (!arena) {
goto loser;
}
/* create a new subject list for this cert, or add to existing */
nssrv = add_subject_entry(arena, td->cache, cert,
certNickname, &subjectList);
if (nssrv != PR_SUCCESS) {
goto loser;
}
added++;
/* If a new subject entry was created, also need nickname and/or email */
if (subjectList != NULL) {
PRBool handle = PR_FALSE;
if (certNickname) {
nssrv = add_nickname_entry(arena, td->cache,
certNickname, subjectList);
if (nssrv != PR_SUCCESS) {
goto loser;
}
handle = PR_TRUE;
added++;
}
if (cert->email) {
nssrv = add_email_entry(td->cache, cert, subjectList);
if (nssrv != PR_SUCCESS) {
goto loser;
}
handle = PR_TRUE;
added += 2;
}
#ifdef nodef
/* I think either a nickname or email address must be associated
* with the cert. However, certs are passed to NewTemp without
* either. This worked in the old code, so it must work now.
*/
if (!handle) {
/* Require either nickname or email handle */
nssrv = PR_FAILURE;
goto loser;
}
#endif
} else {
/* A new subject entry was not created. arena is unused. */
nssArena_Destroy(arena);
}
rvCert = cert;
PZ_Unlock(td->cache->lock);
return rvCert;
loser:
/* Remove any handles that have been created */
subjectList = NULL;
if (added >= 1) {
(void)remove_issuer_and_serial_entry(td->cache, cert);
}
if (added >= 2) {
(void)remove_subject_entry(td->cache, cert, &subjectList,
&certNickname, &arena);
}
if (added == 3 || added == 5) {
(void)remove_nickname_entry(td->cache, certNickname, subjectList);
}
if (added >= 4) {
(void)remove_email_entry(td->cache, cert, subjectList);
}
if (subjectList) {
nssHash_Remove(td->cache->subject, &cert->subject);
nssList_Destroy(subjectList);
}
if (arena) {
nssArena_Destroy(arena);
}
PZ_Unlock(td->cache->lock);
return NULL;
}
NSS_IMPLEMENT PRStatus
nssTrustDomain_AddCertsToCache (
NSSTrustDomain *td,
NSSCertificate **certs,
PRUint32 numCerts
)
{
PRUint32 i;
NSSCertificate *c;
for (i=0; i<numCerts && certs[i]; i++) {
c = add_cert_to_cache(td, certs[i]);
if (c == NULL) {
return PR_FAILURE;
} else {
certs[i] = c;
}
}
return PR_SUCCESS;
}
static NSSCertificate **
collect_subject_certs (
nssList *subjectList,
nssList *rvCertListOpt
)
{
NSSCertificate *c;
NSSCertificate **rvArray = NULL;
PRUint32 count;
nssCertificateList_AddReferences(subjectList);
if (rvCertListOpt) {
nssListIterator *iter = nssList_CreateIterator(subjectList);
if (!iter) {
return (NSSCertificate **)NULL;
}
for (c = (NSSCertificate *)nssListIterator_Start(iter);
c != (NSSCertificate *)NULL;
c = (NSSCertificate *)nssListIterator_Next(iter)) {
nssList_Add(rvCertListOpt, c);
}
nssListIterator_Finish(iter);
nssListIterator_Destroy(iter);
} else {
count = nssList_Count(subjectList);
rvArray = nss_ZNEWARRAY(NULL, NSSCertificate *, count + 1);
if (!rvArray) {
return (NSSCertificate **)NULL;
}
nssList_GetArray(subjectList, (void **)rvArray, count);
}
return rvArray;
}
/*
* Find all cached certs with this subject.
*/
NSS_IMPLEMENT NSSCertificate **
nssTrustDomain_GetCertsForSubjectFromCache (
NSSTrustDomain *td,
NSSDER *subject,
nssList *certListOpt
)
{
NSSCertificate **rvArray = NULL;
cache_entry *ce;
#ifdef DEBUG_CACHE
log_item_dump("looking for cert by subject", subject);
#endif
PZ_Lock(td->cache->lock);
ce = (cache_entry *)nssHash_Lookup(td->cache->subject, subject);
if (ce) {
ce->hits++;
ce->lastHit = PR_Now();
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("... found, %d hits", ce->hits));
#endif
rvArray = collect_subject_certs(ce->entry.list, certListOpt);
}
PZ_Unlock(td->cache->lock);
return rvArray;
}
/*
* Find all cached certs with this label.
*/
NSS_IMPLEMENT NSSCertificate **
nssTrustDomain_GetCertsForNicknameFromCache (
NSSTrustDomain *td,
const NSSUTF8 *nickname,
nssList *certListOpt
)
{
NSSCertificate **rvArray = NULL;
cache_entry *ce;
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("looking for cert by nick %s", nickname));
#endif
PZ_Lock(td->cache->lock);
ce = (cache_entry *)nssHash_Lookup(td->cache->nickname, nickname);
if (ce) {
ce->hits++;
ce->lastHit = PR_Now();
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("... found, %d hits", ce->hits));
#endif
rvArray = collect_subject_certs(ce->entry.list, certListOpt);
}
PZ_Unlock(td->cache->lock);
return rvArray;
}
/*
* Find all cached certs with this email address.
*/
NSS_IMPLEMENT NSSCertificate **
nssTrustDomain_GetCertsForEmailAddressFromCache (
NSSTrustDomain *td,
NSSASCII7 *email,
nssList *certListOpt
)
{
NSSCertificate **rvArray = NULL;
cache_entry *ce;
nssList *collectList = NULL;
nssListIterator *iter = NULL;
nssList *subjectList;
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("looking for cert by email %s", email));
#endif
PZ_Lock(td->cache->lock);
ce = (cache_entry *)nssHash_Lookup(td->cache->email, email);
if (ce) {
ce->hits++;
ce->lastHit = PR_Now();
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("... found, %d hits", ce->hits));
#endif
/* loop over subject lists and get refs for certs */
if (certListOpt) {
collectList = certListOpt;
} else {
collectList = nssList_Create(NULL, PR_FALSE);
if (!collectList) {
PZ_Unlock(td->cache->lock);
return NULL;
}
}
iter = nssList_CreateIterator(ce->entry.list);
if (!iter) {
PZ_Unlock(td->cache->lock);
if (!certListOpt) {
nssList_Destroy(collectList);
}
return NULL;
}
for (subjectList = (nssList *)nssListIterator_Start(iter);
subjectList != (nssList *)NULL;
subjectList = (nssList *)nssListIterator_Next(iter)) {
(void)collect_subject_certs(subjectList, collectList);
}
nssListIterator_Finish(iter);
nssListIterator_Destroy(iter);
}
PZ_Unlock(td->cache->lock);
if (!certListOpt && collectList) {
PRUint32 count = nssList_Count(collectList);
rvArray = nss_ZNEWARRAY(NULL, NSSCertificate *, count);
if (rvArray) {
nssList_GetArray(collectList, (void **)rvArray, count);
}
nssList_Destroy(collectList);
}
return rvArray;
}
/*
* Look for a specific cert in the cache
*/
NSS_IMPLEMENT NSSCertificate *
nssTrustDomain_GetCertForIssuerAndSNFromCache (
NSSTrustDomain *td,
NSSDER *issuer,
NSSDER *serial
)
{
NSSCertificate certkey;
NSSCertificate *rvCert = NULL;
cache_entry *ce;
certkey.issuer.data = issuer->data;
certkey.issuer.size = issuer->size;
certkey.serial.data = serial->data;
certkey.serial.size = serial->size;
#ifdef DEBUG_CACHE
log_item_dump("looking for cert by issuer/sn, issuer", issuer);
log_item_dump(" serial", serial);
#endif
PZ_Lock(td->cache->lock);
ce = (cache_entry *)nssHash_Lookup(td->cache->issuerAndSN, &certkey);
if (ce) {
ce->hits++;
ce->lastHit = PR_Now();
rvCert = nssCertificate_AddRef(ce->entry.cert);
#ifdef DEBUG_CACHE
PR_LOG(s_log, PR_LOG_DEBUG, ("... found, %d hits", ce->hits));
#endif
}
PZ_Unlock(td->cache->lock);
return rvCert;
}
static PRStatus
issuer_and_serial_from_encoding (
NSSBER *encoding,
NSSDER *issuer,
NSSDER *serial
)
{
SECItem derCert, derIssuer, derSerial;
SECStatus secrv;
derCert.data = (unsigned char *)encoding->data;
derCert.len = encoding->size;
secrv = CERT_IssuerNameFromDERCert(&derCert, &derIssuer);
if (secrv != SECSuccess) {
return PR_FAILURE;
}
secrv = CERT_SerialNumberFromDERCert(&derCert, &derSerial);
if (secrv != SECSuccess) {
return PR_FAILURE;
}
issuer->data = derIssuer.data;
issuer->size = derIssuer.len;
serial->data = derSerial.data;
serial->size = derSerial.len;
return PR_SUCCESS;
}
/*
* Look for a specific cert in the cache
*/
NSS_IMPLEMENT NSSCertificate *
nssTrustDomain_GetCertByDERFromCache (
NSSTrustDomain *td,
NSSDER *der
)
{
PRStatus nssrv = PR_FAILURE;
NSSDER issuer, serial;
NSSCertificate *rvCert;
nssrv = issuer_and_serial_from_encoding(der, &issuer, &serial);
if (nssrv != PR_SUCCESS) {
return NULL;
}
#ifdef DEBUG_CACHE
log_item_dump("looking for cert by DER", der);
#endif
rvCert = nssTrustDomain_GetCertForIssuerAndSNFromCache(td,
&issuer, &serial);
PORT_Free(issuer.data);
PORT_Free(serial.data);
return rvCert;
}
static void cert_iter(const void *k, void *v, void *a)
{
nssList *certList = (nssList *)a;
NSSCertificate *c = (NSSCertificate *)k;
nssList_Add(certList, nssCertificate_AddRef(c));
}
NSS_EXTERN NSSCertificate **
nssTrustDomain_GetCertsFromCache (
NSSTrustDomain *td,
nssList *certListOpt
)
{
NSSCertificate **rvArray = NULL;
nssList *certList;
if (certListOpt) {
certList = certListOpt;
} else {
certList = nssList_Create(NULL, PR_FALSE);
if (!certList) {
return NULL;
}
}
PZ_Lock(td->cache->lock);
nssHash_Iterate(td->cache->issuerAndSN, cert_iter, (void *)certList);
PZ_Unlock(td->cache->lock);
if (!certListOpt) {
PRUint32 count = nssList_Count(certList);
rvArray = nss_ZNEWARRAY(NULL, NSSCertificate *, count);
nssList_GetArray(certList, (void **)rvArray, count);
/* array takes the references */
nssList_Destroy(certList);
}
return rvArray;
}
NSS_IMPLEMENT void
nssTrustDomain_DumpCacheInfo (
NSSTrustDomain *td,
void (* cert_dump_iter)(const void *, void *, void *),
void *arg
)
{
PZ_Lock(td->cache->lock);
nssHash_Iterate(td->cache->issuerAndSN, cert_dump_iter, arg);
PZ_Unlock(td->cache->lock);
}
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