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RetroZilla/security/nss/lib/pki/pki3hack.c
roytam1 44b7f056d9 cherry-picked mozilla NSS upstream changes (to rev bad5fd065fa1, which is on par with 3.20): 
bug1001332, 56b691c003ad, bug1086145, bug1054069, bug1155922, bug991783, bug1125025, bug1162521, bug1162644, bug1132941, bug1164364, bug1166205, bug1166163, bug1166515, bug1138554, bug1167046, bug1167043, bug1169451, bug1172128, bug1170322, bug102794, bug1128184, bug557830, bug1174648, bug1180244, bug1177784, bug1173413, bug1169174, bug1084669, bug951455, bug1183395, bug1177430, bug1183827, bug1160139, bug1154106, bug1142209, bug1185033, bug1193467, bug1182667(with sha512 changes backed out, which breaks VC6 compilation), bug1158489, bug337796
2018-07-14 21:22:32 +08:00

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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/. */
/*
* Hacks to integrate NSS 3.4 and NSS 4.0 certificates.
*/
#ifndef NSSPKI_H
#include "nsspki.h"
#endif /* NSSPKI_H */
#ifndef PKI_H
#include "pki.h"
#endif /* PKI_H */
#ifndef PKIM_H
#include "pkim.h"
#endif /* PKIM_H */
#ifndef DEV_H
#include "dev.h"
#endif /* DEV_H */
#ifndef DEVNSS3HACK_H
#include "dev3hack.h"
#endif /* DEVNSS3HACK_H */
#ifndef PKINSS3HACK_H
#include "pki3hack.h"
#endif /* PKINSS3HACK_H */
#include "secitem.h"
#include "certdb.h"
#include "certt.h"
#include "cert.h"
#include "certi.h"
#include "pk11func.h"
#include "pkistore.h"
#include "secmod.h"
#include "nssrwlk.h"
NSSTrustDomain *g_default_trust_domain = NULL;
NSSCryptoContext *g_default_crypto_context = NULL;
NSSTrustDomain *
STAN_GetDefaultTrustDomain()
{
return g_default_trust_domain;
}
NSSCryptoContext *
STAN_GetDefaultCryptoContext()
{
return g_default_crypto_context;
}
extern const NSSError NSS_ERROR_ALREADY_INITIALIZED;
extern const NSSError NSS_ERROR_INTERNAL_ERROR;
NSS_IMPLEMENT PRStatus
STAN_InitTokenForSlotInfo(NSSTrustDomain *td, PK11SlotInfo *slot)
{
NSSToken *token;
if (!td) {
td = g_default_trust_domain;
if (!td) {
/* we're called while still initting. slot will get added
* appropriately through normal init processes */
return PR_SUCCESS;
}
}
token = nssToken_CreateFromPK11SlotInfo(td, slot);
PK11Slot_SetNSSToken(slot, token);
/* Don't add nonexistent token to TD's token list */
if (token) {
NSSRWLock_LockWrite(td->tokensLock);
nssList_Add(td->tokenList, token);
NSSRWLock_UnlockWrite(td->tokensLock);
}
return PR_SUCCESS;
}
NSS_IMPLEMENT PRStatus
STAN_ResetTokenInterator(NSSTrustDomain *td)
{
if (!td) {
td = g_default_trust_domain;
if (!td) {
/* we're called while still initting. slot will get added
* appropriately through normal init processes */
return PR_SUCCESS;
}
}
NSSRWLock_LockWrite(td->tokensLock);
nssListIterator_Destroy(td->tokens);
td->tokens = nssList_CreateIterator(td->tokenList);
NSSRWLock_UnlockWrite(td->tokensLock);
return PR_SUCCESS;
}
NSS_IMPLEMENT PRStatus
STAN_LoadDefaultNSS3TrustDomain (
void
)
{
NSSTrustDomain *td;
SECMODModuleList *mlp;
SECMODListLock *moduleLock = SECMOD_GetDefaultModuleListLock();
int i;
if (g_default_trust_domain || g_default_crypto_context) {
/* Stan is already initialized or a previous shutdown failed. */
nss_SetError(NSS_ERROR_ALREADY_INITIALIZED);
return PR_FAILURE;
}
td = NSSTrustDomain_Create(NULL, NULL, NULL, NULL);
if (!td) {
return PR_FAILURE;
}
/*
* Deadlock warning: we should never acquire the moduleLock while
* we hold the tokensLock. We can use the NSSRWLock Rank feature to
* guarrentee this. tokensLock have a higher rank than module lock.
*/
td->tokenList = nssList_Create(td->arena, PR_TRUE);
if (!td->tokenList) {
goto loser;
}
SECMOD_GetReadLock(moduleLock);
NSSRWLock_LockWrite(td->tokensLock);
for (mlp = SECMOD_GetDefaultModuleList(); mlp != NULL; mlp=mlp->next) {
for (i=0; i < mlp->module->slotCount; i++) {
STAN_InitTokenForSlotInfo(td, mlp->module->slots[i]);
}
}
td->tokens = nssList_CreateIterator(td->tokenList);
NSSRWLock_UnlockWrite(td->tokensLock);
SECMOD_ReleaseReadLock(moduleLock);
if (!td->tokens) {
goto loser;
}
g_default_crypto_context = NSSTrustDomain_CreateCryptoContext(td, NULL);
if (!g_default_crypto_context) {
goto loser;
}
g_default_trust_domain = td;
return PR_SUCCESS;
loser:
NSSTrustDomain_Destroy(td);
return PR_FAILURE;
}
/*
* must be called holding the ModuleListLock (either read or write).
*/
NSS_IMPLEMENT SECStatus
STAN_AddModuleToDefaultTrustDomain (
SECMODModule *module
)
{
NSSTrustDomain *td;
int i;
td = STAN_GetDefaultTrustDomain();
for (i=0; i<module->slotCount; i++) {
STAN_InitTokenForSlotInfo(td, module->slots[i]);
}
STAN_ResetTokenInterator(td);
return SECSuccess;
}
/*
* must be called holding the ModuleListLock (either read or write).
*/
NSS_IMPLEMENT SECStatus
STAN_RemoveModuleFromDefaultTrustDomain (
SECMODModule *module
)
{
NSSToken *token;
NSSTrustDomain *td;
int i;
td = STAN_GetDefaultTrustDomain();
NSSRWLock_LockWrite(td->tokensLock);
for (i=0; i<module->slotCount; i++) {
token = PK11Slot_GetNSSToken(module->slots[i]);
if (token) {
nssToken_NotifyCertsNotVisible(token);
nssList_Remove(td->tokenList, token);
PK11Slot_SetNSSToken(module->slots[i], NULL);
nssToken_Destroy(token);
}
}
nssListIterator_Destroy(td->tokens);
td->tokens = nssList_CreateIterator(td->tokenList);
NSSRWLock_UnlockWrite(td->tokensLock);
return SECSuccess;
}
NSS_IMPLEMENT PRStatus
STAN_Shutdown()
{
PRStatus status = PR_SUCCESS;
if (g_default_trust_domain) {
if (NSSTrustDomain_Destroy(g_default_trust_domain) == PR_SUCCESS) {
g_default_trust_domain = NULL;
} else {
status = PR_FAILURE;
}
}
if (g_default_crypto_context) {
if (NSSCryptoContext_Destroy(g_default_crypto_context) == PR_SUCCESS) {
g_default_crypto_context = NULL;
} else {
status = PR_FAILURE;
}
}
return status;
}
/* this function should not be a hack; it will be needed in 4.0 (rename) */
NSS_IMPLEMENT NSSItem *
STAN_GetCertIdentifierFromDER(NSSArena *arenaOpt, NSSDER *der)
{
NSSItem *rvKey;
SECItem secDER;
SECItem secKey = { 0 };
SECStatus secrv;
PLArenaPool *arena;
SECITEM_FROM_NSSITEM(&secDER, der);
/* nss3 call uses nss3 arena's */
arena = PORT_NewArena(256);
if (!arena) {
return NULL;
}
secrv = CERT_KeyFromDERCert(arena, &secDER, &secKey);
if (secrv != SECSuccess) {
return NULL;
}
rvKey = nssItem_Create(arenaOpt, NULL, secKey.len, (void *)secKey.data);
PORT_FreeArena(arena,PR_FALSE);
return rvKey;
}
NSS_IMPLEMENT PRStatus
nssPKIX509_GetIssuerAndSerialFromDER(NSSDER *der,
NSSDER *issuer, NSSDER *serial)
{
SECItem derCert = { 0 };
SECItem derIssuer = { 0 };
SECItem derSerial = { 0 };
SECStatus secrv;
derCert.data = (unsigned char *)der->data;
derCert.len = der->size;
secrv = CERT_IssuerNameFromDERCert(&derCert, &derIssuer);
if (secrv != SECSuccess) {
return PR_FAILURE;
}
secrv = CERT_SerialNumberFromDERCert(&derCert, &derSerial);
if (secrv != SECSuccess) {
PORT_Free(derSerial.data);
return PR_FAILURE;
}
issuer->data = derIssuer.data;
issuer->size = derIssuer.len;
serial->data = derSerial.data;
serial->size = derSerial.len;
return PR_SUCCESS;
}
static NSSItem *
nss3certificate_getIdentifier(nssDecodedCert *dc)
{
NSSItem *rvID;
CERTCertificate *c = (CERTCertificate *)dc->data;
rvID = nssItem_Create(NULL, NULL, c->certKey.len, c->certKey.data);
return rvID;
}
static void *
nss3certificate_getIssuerIdentifier(nssDecodedCert *dc)
{
CERTCertificate *c = (CERTCertificate *)dc->data;
return (void *)c->authKeyID;
}
static nssCertIDMatch
nss3certificate_matchIdentifier(nssDecodedCert *dc, void *id)
{
CERTCertificate *c = (CERTCertificate *)dc->data;
CERTAuthKeyID *authKeyID = (CERTAuthKeyID *)id;
SECItem skid;
nssCertIDMatch match = nssCertIDMatch_Unknown;
/* keyIdentifier */
if (authKeyID->keyID.len > 0 &&
CERT_FindSubjectKeyIDExtension(c, &skid) == SECSuccess) {
PRBool skiEqual;
skiEqual = SECITEM_ItemsAreEqual(&authKeyID->keyID, &skid);
PORT_Free(skid.data);
if (skiEqual) {
/* change the state to positive match, but keep going */
match = nssCertIDMatch_Yes;
} else {
/* exit immediately on failure */
return nssCertIDMatch_No;
}
}
/* issuer/serial (treated as pair) */
if (authKeyID->authCertIssuer) {
SECItem *caName = NULL;
SECItem *caSN = &authKeyID->authCertSerialNumber;
caName = (SECItem *)CERT_GetGeneralNameByType(
authKeyID->authCertIssuer,
certDirectoryName, PR_TRUE);
if (caName != NULL &&
SECITEM_ItemsAreEqual(&c->derIssuer, caName) &&
SECITEM_ItemsAreEqual(&c->serialNumber, caSN))
{
match = nssCertIDMatch_Yes;
} else {
match = nssCertIDMatch_Unknown;
}
}
return match;
}
static PRBool
nss3certificate_isValidIssuer(nssDecodedCert *dc)
{
CERTCertificate *c = (CERTCertificate *)dc->data;
unsigned int ignore;
return CERT_IsCACert(c, &ignore);
}
static NSSUsage *
nss3certificate_getUsage(nssDecodedCert *dc)
{
/* CERTCertificate *c = (CERTCertificate *)dc->data; */
return NULL;
}
static PRBool
nss3certificate_isValidAtTime(nssDecodedCert *dc, NSSTime *time)
{
SECCertTimeValidity validity;
CERTCertificate *c = (CERTCertificate *)dc->data;
validity = CERT_CheckCertValidTimes(c, NSSTime_GetPRTime(time), PR_TRUE);
if (validity == secCertTimeValid) {
return PR_TRUE;
}
return PR_FALSE;
}
static PRBool
nss3certificate_isNewerThan(nssDecodedCert *dc, nssDecodedCert *cmpdc)
{
/* I know this isn't right, but this is glue code anyway */
if (cmpdc->type == dc->type) {
CERTCertificate *certa = (CERTCertificate *)dc->data;
CERTCertificate *certb = (CERTCertificate *)cmpdc->data;
return CERT_IsNewer(certa, certb);
}
return PR_FALSE;
}
/* CERT_FilterCertListByUsage */
static PRBool
nss3certificate_matchUsage(nssDecodedCert *dc, const NSSUsage *usage)
{
CERTCertificate *cc;
unsigned int requiredKeyUsage = 0;
unsigned int requiredCertType = 0;
SECStatus secrv;
PRBool match;
PRBool ca;
/* This is for NSS 3.3 functions that do not specify a usage */
if (usage->anyUsage) {
return PR_TRUE;
}
ca = usage->nss3lookingForCA;
secrv = CERT_KeyUsageAndTypeForCertUsage(usage->nss3usage, ca,
&requiredKeyUsage,
&requiredCertType);
if (secrv != SECSuccess) {
return PR_FALSE;
}
cc = (CERTCertificate *)dc->data;
secrv = CERT_CheckKeyUsage(cc, requiredKeyUsage);
match = (PRBool)(secrv == SECSuccess);
if (match) {
unsigned int certType = 0;
if (ca) {
(void)CERT_IsCACert(cc, &certType);
} else {
certType = cc->nsCertType;
}
if (!(certType & requiredCertType)) {
match = PR_FALSE;
}
}
return match;
}
static PRBool
nss3certificate_isTrustedForUsage(nssDecodedCert *dc, const NSSUsage *usage)
{
CERTCertificate *cc;
PRBool ca;
SECStatus secrv;
unsigned int requiredFlags;
unsigned int trustFlags;
SECTrustType trustType;
CERTCertTrust trust;
/* This is for NSS 3.3 functions that do not specify a usage */
if (usage->anyUsage) {
return PR_FALSE; /* XXX is this right? */
}
cc = (CERTCertificate *)dc->data;
ca = usage->nss3lookingForCA;
if (!ca) {
PRBool trusted;
unsigned int failedFlags;
secrv = cert_CheckLeafTrust(cc, usage->nss3usage,
&failedFlags, &trusted);
return secrv == SECSuccess && trusted;
}
secrv = CERT_TrustFlagsForCACertUsage(usage->nss3usage, &requiredFlags,
&trustType);
if (secrv != SECSuccess) {
return PR_FALSE;
}
secrv = CERT_GetCertTrust(cc, &trust);
if (secrv != SECSuccess) {
return PR_FALSE;
}
if (trustType == trustTypeNone) {
/* normally trustTypeNone usages accept any of the given trust bits
* being on as acceptable. */
trustFlags = trust.sslFlags | trust.emailFlags |
trust.objectSigningFlags;
} else {
trustFlags = SEC_GET_TRUST_FLAGS(&trust, trustType);
}
return (trustFlags & requiredFlags) == requiredFlags;
}
static NSSASCII7 *
nss3certificate_getEmailAddress(nssDecodedCert *dc)
{
CERTCertificate *cc = (CERTCertificate *)dc->data;
return (cc && cc->emailAddr && cc->emailAddr[0])
? (NSSASCII7 *)cc->emailAddr : NULL;
}
static PRStatus
nss3certificate_getDERSerialNumber(nssDecodedCert *dc,
NSSDER *serial, NSSArena *arena)
{
CERTCertificate *cc = (CERTCertificate *)dc->data;
SECItem derSerial = { 0 };
SECStatus secrv;
secrv = CERT_SerialNumberFromDERCert(&cc->derCert, &derSerial);
if (secrv == SECSuccess) {
(void)nssItem_Create(arena, serial, derSerial.len, derSerial.data);
PORT_Free(derSerial.data);
return PR_SUCCESS;
}
return PR_FAILURE;
}
/* Returns NULL if "encoding" cannot be decoded. */
NSS_IMPLEMENT nssDecodedCert *
nssDecodedPKIXCertificate_Create (
NSSArena *arenaOpt,
NSSDER *encoding
)
{
nssDecodedCert *rvDC = NULL;
CERTCertificate *cert;
SECItem secDER;
SECITEM_FROM_NSSITEM(&secDER, encoding);
cert = CERT_DecodeDERCertificate(&secDER, PR_TRUE, NULL);
if (cert) {
rvDC = nss_ZNEW(arenaOpt, nssDecodedCert);
if (rvDC) {
rvDC->type = NSSCertificateType_PKIX;
rvDC->data = (void *)cert;
rvDC->getIdentifier = nss3certificate_getIdentifier;
rvDC->getIssuerIdentifier = nss3certificate_getIssuerIdentifier;
rvDC->matchIdentifier = nss3certificate_matchIdentifier;
rvDC->isValidIssuer = nss3certificate_isValidIssuer;
rvDC->getUsage = nss3certificate_getUsage;
rvDC->isValidAtTime = nss3certificate_isValidAtTime;
rvDC->isNewerThan = nss3certificate_isNewerThan;
rvDC->matchUsage = nss3certificate_matchUsage;
rvDC->isTrustedForUsage = nss3certificate_isTrustedForUsage;
rvDC->getEmailAddress = nss3certificate_getEmailAddress;
rvDC->getDERSerialNumber = nss3certificate_getDERSerialNumber;
} else {
CERT_DestroyCertificate(cert);
}
}
return rvDC;
}
static nssDecodedCert *
create_decoded_pkix_cert_from_nss3cert (
NSSArena *arenaOpt,
CERTCertificate *cc
)
{
nssDecodedCert *rvDC = nss_ZNEW(arenaOpt, nssDecodedCert);
if (rvDC) {
rvDC->type = NSSCertificateType_PKIX;
rvDC->data = (void *)cc;
rvDC->getIdentifier = nss3certificate_getIdentifier;
rvDC->getIssuerIdentifier = nss3certificate_getIssuerIdentifier;
rvDC->matchIdentifier = nss3certificate_matchIdentifier;
rvDC->isValidIssuer = nss3certificate_isValidIssuer;
rvDC->getUsage = nss3certificate_getUsage;
rvDC->isValidAtTime = nss3certificate_isValidAtTime;
rvDC->isNewerThan = nss3certificate_isNewerThan;
rvDC->matchUsage = nss3certificate_matchUsage;
rvDC->isTrustedForUsage = nss3certificate_isTrustedForUsage;
rvDC->getEmailAddress = nss3certificate_getEmailAddress;
rvDC->getDERSerialNumber = nss3certificate_getDERSerialNumber;
}
return rvDC;
}
NSS_IMPLEMENT PRStatus
nssDecodedPKIXCertificate_Destroy (
nssDecodedCert *dc
)
{
CERTCertificate *cert = (CERTCertificate *)dc->data;
/* The decoder may only be half initialized (the case where we find we
* could not decode the certificate). In this case, there is not cert to
* free, just free the dc structure. */
if (cert) {
PRBool freeSlot = cert->ownSlot;
PK11SlotInfo *slot = cert->slot;
PLArenaPool *arena = cert->arena;
/* zero cert before freeing. Any stale references to this cert
* after this point will probably cause an exception. */
PORT_Memset(cert, 0, sizeof *cert);
/* free the arena that contains the cert. */
PORT_FreeArena(arena, PR_FALSE);
if (slot && freeSlot) {
PK11_FreeSlot(slot);
}
}
nss_ZFreeIf(dc);
return PR_SUCCESS;
}
/* see pk11cert.c:pk11_HandleTrustObject */
static unsigned int
get_nss3trust_from_nss4trust(nssTrustLevel t)
{
unsigned int rt = 0;
if (t == nssTrustLevel_Trusted) {
rt |= CERTDB_TERMINAL_RECORD | CERTDB_TRUSTED;
}
if (t == nssTrustLevel_TrustedDelegator) {
rt |= CERTDB_VALID_CA | CERTDB_TRUSTED_CA;
}
if (t == nssTrustLevel_NotTrusted) {
rt |= CERTDB_TERMINAL_RECORD;
}
if (t == nssTrustLevel_ValidDelegator) {
rt |= CERTDB_VALID_CA;
}
return rt;
}
static CERTCertTrust *
cert_trust_from_stan_trust(NSSTrust *t, PLArenaPool *arena)
{
CERTCertTrust *rvTrust;
unsigned int client;
if (!t) {
return NULL;
}
rvTrust = PORT_ArenaAlloc(arena, sizeof(CERTCertTrust));
if (!rvTrust) return NULL;
rvTrust->sslFlags = get_nss3trust_from_nss4trust(t->serverAuth);
client = get_nss3trust_from_nss4trust(t->clientAuth);
if (client & (CERTDB_TRUSTED_CA|CERTDB_NS_TRUSTED_CA)) {
client &= ~(CERTDB_TRUSTED_CA|CERTDB_NS_TRUSTED_CA);
rvTrust->sslFlags |= CERTDB_TRUSTED_CLIENT_CA;
}
rvTrust->sslFlags |= client;
rvTrust->emailFlags = get_nss3trust_from_nss4trust(t->emailProtection);
rvTrust->objectSigningFlags = get_nss3trust_from_nss4trust(t->codeSigning);
return rvTrust;
}
CERTCertTrust *
nssTrust_GetCERTCertTrustForCert(NSSCertificate *c, CERTCertificate *cc)
{
CERTCertTrust *rvTrust = NULL;
NSSTrustDomain *td = STAN_GetDefaultTrustDomain();
NSSTrust *t;
t = nssTrustDomain_FindTrustForCertificate(td, c);
if (t) {
rvTrust = cert_trust_from_stan_trust(t, cc->arena);
if (!rvTrust) {
nssTrust_Destroy(t);
return NULL;
}
nssTrust_Destroy(t);
} else {
rvTrust = PORT_ArenaAlloc(cc->arena, sizeof(CERTCertTrust));
if (!rvTrust) {
return NULL;
}
memset(rvTrust, 0, sizeof(*rvTrust));
}
if (NSSCertificate_IsPrivateKeyAvailable(c, NULL, NULL)) {
rvTrust->sslFlags |= CERTDB_USER;
rvTrust->emailFlags |= CERTDB_USER;
rvTrust->objectSigningFlags |= CERTDB_USER;
}
return rvTrust;
}
static nssCryptokiInstance *
get_cert_instance(NSSCertificate *c)
{
nssCryptokiObject *instance, **ci;
nssCryptokiObject **instances = nssPKIObject_GetInstances(&c->object);
if (!instances) {
return NULL;
}
instance = NULL;
for (ci = instances; *ci; ci++) {
if (!instance) {
instance = nssCryptokiObject_Clone(*ci);
} else {
/* This only really works for two instances... But 3.4 can't
* handle more anyway. The logic is, if there are multiple
* instances, prefer the one that is not internal (e.g., on
* a hardware device.
*/
if (PK11_IsInternal(instance->token->pk11slot)) {
nssCryptokiObject_Destroy(instance);
instance = nssCryptokiObject_Clone(*ci);
}
}
}
nssCryptokiObjectArray_Destroy(instances);
return instance;
}
char *
STAN_GetCERTCertificateNameForInstance (
PLArenaPool *arenaOpt,
NSSCertificate *c,
nssCryptokiInstance *instance
)
{
NSSCryptoContext *context = c->object.cryptoContext;
PRStatus nssrv;
int nicklen, tokenlen, len;
NSSUTF8 *tokenName = NULL;
NSSUTF8 *stanNick = NULL;
char *nickname = NULL;
char *nick;
if (instance) {
stanNick = instance->label;
} else if (context) {
stanNick = c->object.tempName;
}
if (stanNick) {
/* fill other fields needed by NSS3 functions using CERTCertificate */
if (instance && (!PK11_IsInternalKeySlot(instance->token->pk11slot) ||
PORT_Strchr(stanNick, ':') != NULL) ) {
tokenName = nssToken_GetName(instance->token);
tokenlen = nssUTF8_Size(tokenName, &nssrv);
} else {
/* don't use token name for internal slot; 3.3 didn't */
tokenlen = 0;
}
nicklen = nssUTF8_Size(stanNick, &nssrv);
len = tokenlen + nicklen;
if (arenaOpt) {
nickname = PORT_ArenaAlloc(arenaOpt, len);
} else {
nickname = PORT_Alloc(len);
}
nick = nickname;
if (tokenName) {
memcpy(nick, tokenName, tokenlen-1);
nick += tokenlen-1;
*nick++ = ':';
}
memcpy(nick, stanNick, nicklen-1);
nickname[len-1] = '\0';
}
return nickname;
}
char *
STAN_GetCERTCertificateName(PLArenaPool *arenaOpt, NSSCertificate *c)
{
char * result;
nssCryptokiInstance *instance = get_cert_instance(c);
/* It's OK to call this function, even if instance is NULL */
result = STAN_GetCERTCertificateNameForInstance(arenaOpt, c, instance);
if (instance)
nssCryptokiObject_Destroy(instance);
return result;
}
static void
fill_CERTCertificateFields(NSSCertificate *c, CERTCertificate *cc, PRBool forced)
{
CERTCertTrust* trust = NULL;
NSSTrust *nssTrust;
NSSCryptoContext *context = c->object.cryptoContext;
nssCryptokiInstance *instance;
NSSUTF8 *stanNick = NULL;
/* We are holding the base class object's lock on entry of this function
* This lock protects writes to fields of the CERTCertificate .
* It is also needed by some functions to compute values such as trust.
*/
instance = get_cert_instance(c);
if (instance) {
stanNick = instance->label;
} else if (context) {
stanNick = c->object.tempName;
}
/* fill other fields needed by NSS3 functions using CERTCertificate */
if ((!cc->nickname && stanNick) || forced) {
PRStatus nssrv;
int nicklen, tokenlen, len;
NSSUTF8 *tokenName = NULL;
char *nick;
if (instance &&
(!PK11_IsInternalKeySlot(instance->token->pk11slot) ||
(stanNick && PORT_Strchr(stanNick, ':') != NULL))) {
tokenName = nssToken_GetName(instance->token);
tokenlen = nssUTF8_Size(tokenName, &nssrv);
} else {
/* don't use token name for internal slot; 3.3 didn't */
tokenlen = 0;
}
if (stanNick) {
nicklen = nssUTF8_Size(stanNick, &nssrv);
len = tokenlen + nicklen;
nick = PORT_ArenaAlloc(cc->arena, len);
if (tokenName) {
memcpy(nick, tokenName, tokenlen-1);
nick[tokenlen-1] = ':';
memcpy(nick+tokenlen, stanNick, nicklen-1);
} else {
memcpy(nick, stanNick, nicklen-1);
}
nick[len-1] = '\0';
cc->nickname = nick;
} else {
cc->nickname = NULL;
}
}
if (context) {
/* trust */
nssTrust = nssCryptoContext_FindTrustForCertificate(context, c);
if (!nssTrust) {
/* chicken and egg issue:
*
* c->issuer and c->serial are empty at this point, but
* nssTrustDomain_FindTrustForCertificate use them to look up
* up the trust object, so we point them to cc->derIssuer and
* cc->serialNumber.
*
* Our caller will fill these in with proper arena copies when we
* return. */
c->issuer.data = cc->derIssuer.data;
c->issuer.size = cc->derIssuer.len;
c->serial.data = cc->serialNumber.data;
c->serial.size = cc->serialNumber.len;
nssTrust = nssTrustDomain_FindTrustForCertificate(context->td, c);
}
if (nssTrust) {
trust = cert_trust_from_stan_trust(nssTrust, cc->arena);
if (trust) {
/* we should destroy cc->trust before replacing it, but it's
allocated in cc->arena, so memory growth will occur on each
refresh */
CERT_LockCertTrust(cc);
cc->trust = trust;
CERT_UnlockCertTrust(cc);
}
nssTrust_Destroy(nssTrust);
}
} else if (instance) {
/* slot */
if (cc->slot != instance->token->pk11slot) {
if (cc->slot) {
PK11_FreeSlot(cc->slot);
}
cc->slot = PK11_ReferenceSlot(instance->token->pk11slot);
}
cc->ownSlot = PR_TRUE;
/* pkcs11ID */
cc->pkcs11ID = instance->handle;
/* trust */
trust = nssTrust_GetCERTCertTrustForCert(c, cc);
if (trust) {
/* we should destroy cc->trust before replacing it, but it's
allocated in cc->arena, so memory growth will occur on each
refresh */
CERT_LockCertTrust(cc);
cc->trust = trust;
CERT_UnlockCertTrust(cc);
}
nssCryptokiObject_Destroy(instance);
}
/* database handle is now the trust domain */
cc->dbhandle = c->object.trustDomain;
/* subjectList ? */
/* istemp and isperm are supported in NSS 3.4 */
cc->istemp = PR_FALSE; /* CERT_NewTemp will override this */
cc->isperm = PR_TRUE; /* by default */
/* pointer back */
cc->nssCertificate = c;
if (trust) {
/* force the cert type to be recomputed to include trust info */
PRUint32 nsCertType = cert_ComputeCertType(cc);
/* Assert that it is safe to cast &cc->nsCertType to "PRInt32 *" */
PORT_Assert(sizeof(cc->nsCertType) == sizeof(PRInt32));
PR_ATOMIC_SET((PRInt32 *)&cc->nsCertType, nsCertType);
}
}
static CERTCertificate *
stan_GetCERTCertificate(NSSCertificate *c, PRBool forceUpdate)
{
nssDecodedCert *dc = NULL;
CERTCertificate *cc = NULL;
CERTCertTrust certTrust;
/* make sure object does not go away until we finish */
nssPKIObject_AddRef(&c->object);
nssPKIObject_Lock(&c->object);
dc = c->decoding;
if (!dc) {
dc = nssDecodedPKIXCertificate_Create(NULL, &c->encoding);
if (!dc) {
goto loser;
}
cc = (CERTCertificate *)dc->data;
PORT_Assert(cc); /* software error */
if (!cc) {
nssDecodedPKIXCertificate_Destroy(dc);
nss_SetError(NSS_ERROR_INTERNAL_ERROR);
goto loser;
}
PORT_Assert(!c->decoding);
if (!c->decoding) {
c->decoding = dc;
} else {
/* this should never happen. Fail. */
nssDecodedPKIXCertificate_Destroy(dc);
nss_SetError(NSS_ERROR_INTERNAL_ERROR);
goto loser;
}
}
cc = (CERTCertificate *)dc->data;
PORT_Assert(cc);
if (!cc) {
nss_SetError(NSS_ERROR_INTERNAL_ERROR);
goto loser;
}
if (!cc->nssCertificate || forceUpdate) {
fill_CERTCertificateFields(c, cc, forceUpdate);
} else if (CERT_GetCertTrust(cc, &certTrust) != SECSuccess &&
!c->object.cryptoContext) {
/* if it's a perm cert, it might have been stored before the
* trust, so look for the trust again. But a temp cert can be
* ignored.
*/
CERTCertTrust* trust = NULL;
trust = nssTrust_GetCERTCertTrustForCert(c, cc);
CERT_LockCertTrust(cc);
cc->trust = trust;
CERT_UnlockCertTrust(cc);
}
loser:
nssPKIObject_Unlock(&c->object);
nssPKIObject_Destroy(&c->object);
return cc;
}
NSS_IMPLEMENT CERTCertificate *
STAN_ForceCERTCertificateUpdate(NSSCertificate *c)
{
if (c->decoding) {
return stan_GetCERTCertificate(c, PR_TRUE);
}
return NULL;
}
NSS_IMPLEMENT CERTCertificate *
STAN_GetCERTCertificate(NSSCertificate *c)
{
return stan_GetCERTCertificate(c, PR_FALSE);
}
/*
* many callers of STAN_GetCERTCertificate() intend that
* the CERTCertificate returned inherits the reference to the
* NSSCertificate. For these callers it's convenient to have
* this function 'own' the reference and either return a valid
* CERTCertificate structure which inherits the reference or
* destroy the reference to NSSCertificate and returns NULL.
*/
NSS_IMPLEMENT CERTCertificate *
STAN_GetCERTCertificateOrRelease(NSSCertificate *c)
{
CERTCertificate *nss3cert = stan_GetCERTCertificate(c, PR_FALSE);
if (!nss3cert) {
nssCertificate_Destroy(c);
}
return nss3cert;
}
static nssTrustLevel
get_stan_trust(unsigned int t, PRBool isClientAuth)
{
if (isClientAuth) {
if (t & CERTDB_TRUSTED_CLIENT_CA) {
return nssTrustLevel_TrustedDelegator;
}
} else {
if (t & CERTDB_TRUSTED_CA || t & CERTDB_NS_TRUSTED_CA) {
return nssTrustLevel_TrustedDelegator;
}
}
if (t & CERTDB_TRUSTED) {
return nssTrustLevel_Trusted;
}
if (t & CERTDB_TERMINAL_RECORD) {
return nssTrustLevel_NotTrusted;
}
if (t & CERTDB_VALID_CA) {
return nssTrustLevel_ValidDelegator;
}
return nssTrustLevel_MustVerify;
}
NSS_EXTERN NSSCertificate *
STAN_GetNSSCertificate(CERTCertificate *cc)
{
NSSCertificate *c;
nssCryptokiInstance *instance;
nssPKIObject *pkiob;
NSSArena *arena;
c = cc->nssCertificate;
if (c) {
return c;
}
/* i don't think this should happen. but if it can, need to create
* NSSCertificate from CERTCertificate values here. */
/* Yup, it can happen. */
arena = NSSArena_Create();
if (!arena) {
return NULL;
}
c = nss_ZNEW(arena, NSSCertificate);
if (!c) {
nssArena_Destroy(arena);
return NULL;
}
NSSITEM_FROM_SECITEM(&c->encoding, &cc->derCert);
c->type = NSSCertificateType_PKIX;
pkiob = nssPKIObject_Create(arena, NULL, cc->dbhandle, NULL, nssPKIMonitor);
if (!pkiob) {
nssArena_Destroy(arena);
return NULL;
}
c->object = *pkiob;
nssItem_Create(arena,
&c->issuer, cc->derIssuer.len, cc->derIssuer.data);
nssItem_Create(arena,
&c->subject, cc->derSubject.len, cc->derSubject.data);
if (PR_TRUE) {
/* CERTCertificate stores serial numbers decoded. I need the DER
* here. sigh.
*/
SECItem derSerial;
SECStatus secrv;
secrv = CERT_SerialNumberFromDERCert(&cc->derCert, &derSerial);
if (secrv == SECFailure) {
nssArena_Destroy(arena);
return NULL;
}
nssItem_Create(arena, &c->serial, derSerial.len, derSerial.data);
PORT_Free(derSerial.data);
}
if (cc->emailAddr && cc->emailAddr[0]) {
c->email = nssUTF8_Create(arena,
nssStringType_PrintableString,
(NSSUTF8 *)cc->emailAddr,
PORT_Strlen(cc->emailAddr));
}
if (cc->slot) {
instance = nss_ZNEW(arena, nssCryptokiInstance);
if (!instance) {
nssArena_Destroy(arena);
return NULL;
}
instance->token = nssToken_AddRef(PK11Slot_GetNSSToken(cc->slot));
instance->handle = cc->pkcs11ID;
instance->isTokenObject = PR_TRUE;
if (cc->nickname) {
instance->label = nssUTF8_Create(arena,
nssStringType_UTF8String,
(NSSUTF8 *)cc->nickname,
PORT_Strlen(cc->nickname));
}
nssPKIObject_AddInstance(&c->object, instance);
}
c->decoding = create_decoded_pkix_cert_from_nss3cert(NULL, cc);
cc->nssCertificate = c;
return c;
}
static NSSToken*
stan_GetTrustToken (
NSSCertificate *c
)
{
NSSToken *ttok = NULL;
NSSToken *rtok = NULL;
NSSToken *tok = NULL;
nssCryptokiObject **ip;
nssCryptokiObject **instances = nssPKIObject_GetInstances(&c->object);
if (!instances) {
return PR_FALSE;
}
for (ip = instances; *ip; ip++) {
nssCryptokiObject *instance = *ip;
nssCryptokiObject *to =
nssToken_FindTrustForCertificate(instance->token, NULL,
&c->encoding, &c->issuer, &c->serial,
nssTokenSearchType_TokenOnly);
NSSToken *ctok = instance->token;
PRBool ro = PK11_IsReadOnly(ctok->pk11slot);
if (to) {
nssCryptokiObject_Destroy(to);
ttok = ctok;
if (!ro) {
break;
}
} else {
if (!rtok && ro) {
rtok = ctok;
}
if (!tok && !ro) {
tok = ctok;
}
}
}
nssCryptokiObjectArray_Destroy(instances);
return ttok ? ttok : (tok ? tok : rtok);
}
NSS_EXTERN PRStatus
STAN_ChangeCertTrust(CERTCertificate *cc, CERTCertTrust *trust)
{
PRStatus nssrv;
NSSCertificate *c = STAN_GetNSSCertificate(cc);
NSSToken *tok;
NSSTrustDomain *td;
NSSTrust *nssTrust;
NSSArena *arena;
CERTCertTrust *oldTrust;
CERTCertTrust *newTrust;
nssListIterator *tokens;
PRBool moving_object;
nssCryptokiObject *newInstance;
nssPKIObject *pkiob;
if (c == NULL) {
return PR_FAILURE;
}
oldTrust = nssTrust_GetCERTCertTrustForCert(c, cc);
if (oldTrust) {
if (memcmp(oldTrust, trust, sizeof (CERTCertTrust)) == 0) {
/* ... and the new trust is no different, done) */
return PR_SUCCESS;
} else {
/* take over memory already allocated in cc's arena */
newTrust = oldTrust;
}
} else {
newTrust = PORT_ArenaAlloc(cc->arena, sizeof(CERTCertTrust));
}
memcpy(newTrust, trust, sizeof(CERTCertTrust));
CERT_LockCertTrust(cc);
cc->trust = newTrust;
CERT_UnlockCertTrust(cc);
/* Set the NSSCerticate's trust */
arena = nssArena_Create();
if (!arena) return PR_FAILURE;
nssTrust = nss_ZNEW(arena, NSSTrust);
if (!nssTrust) {
nssArena_Destroy(arena);
return PR_FAILURE;
}
pkiob = nssPKIObject_Create(arena, NULL, cc->dbhandle, NULL, nssPKILock);
if (!pkiob) {
nssArena_Destroy(arena);
return PR_FAILURE;
}
nssTrust->object = *pkiob;
nssTrust->certificate = c;
nssTrust->serverAuth = get_stan_trust(trust->sslFlags, PR_FALSE);
nssTrust->clientAuth = get_stan_trust(trust->sslFlags, PR_TRUE);
nssTrust->emailProtection = get_stan_trust(trust->emailFlags, PR_FALSE);
nssTrust->codeSigning = get_stan_trust(trust->objectSigningFlags, PR_FALSE);
nssTrust->stepUpApproved =
(PRBool)(trust->sslFlags & CERTDB_GOVT_APPROVED_CA);
if (c->object.cryptoContext != NULL) {
/* The cert is in a context, set the trust there */
NSSCryptoContext *cc = c->object.cryptoContext;
nssrv = nssCryptoContext_ImportTrust(cc, nssTrust);
if (nssrv != PR_SUCCESS) {
goto done;
}
if (c->object.numInstances == 0) {
/* The context is the only instance, finished */
goto done;
}
}
td = STAN_GetDefaultTrustDomain();
tok = stan_GetTrustToken(c);
moving_object = PR_FALSE;
if (tok && PK11_IsReadOnly(tok->pk11slot)) {
NSSRWLock_LockRead(td->tokensLock);
tokens = nssList_CreateIterator(td->tokenList);
if (!tokens) {
nssrv = PR_FAILURE;
NSSRWLock_UnlockRead(td->tokensLock);
goto done;
}
for (tok = (NSSToken *)nssListIterator_Start(tokens);
tok != (NSSToken *)NULL;
tok = (NSSToken *)nssListIterator_Next(tokens))
{
if (!PK11_IsReadOnly(tok->pk11slot)) break;
}
nssListIterator_Finish(tokens);
nssListIterator_Destroy(tokens);
NSSRWLock_UnlockRead(td->tokensLock);
moving_object = PR_TRUE;
}
if (tok) {
if (moving_object) {
/* this is kind of hacky. the softoken needs the cert
* object in order to store trust. forcing it to be perm
*/
NSSUTF8 *nickname = nssCertificate_GetNickname(c, NULL);
NSSASCII7 *email = NULL;
if (PK11_IsInternal(tok->pk11slot)) {
email = c->email;
}
newInstance = nssToken_ImportCertificate(tok, NULL,
NSSCertificateType_PKIX,
&c->id,
nickname,
&c->encoding,
&c->issuer,
&c->subject,
&c->serial,
email,
PR_TRUE);
nss_ZFreeIf(nickname);
nickname = NULL;
if (!newInstance) {
nssrv = PR_FAILURE;
goto done;
}
nssPKIObject_AddInstance(&c->object, newInstance);
}
newInstance = nssToken_ImportTrust(tok, NULL, &c->encoding,
&c->issuer, &c->serial,
nssTrust->serverAuth,
nssTrust->clientAuth,
nssTrust->codeSigning,
nssTrust->emailProtection,
nssTrust->stepUpApproved, PR_TRUE);
/* If the selected token can't handle trust, dump the trust on
* the internal token */
if (!newInstance && !PK11_IsInternalKeySlot(tok->pk11slot)) {
PK11SlotInfo *slot = PK11_GetInternalKeySlot();
NSSUTF8 *nickname = nssCertificate_GetNickname(c, NULL);
NSSASCII7 *email = c->email;
tok = PK11Slot_GetNSSToken(slot);
PK11_FreeSlot(slot);
newInstance = nssToken_ImportCertificate(tok, NULL,
NSSCertificateType_PKIX,
&c->id,
nickname,
&c->encoding,
&c->issuer,
&c->subject,
&c->serial,
email,
PR_TRUE);
nss_ZFreeIf(nickname);
nickname = NULL;
if (!newInstance) {
nssrv = PR_FAILURE;
goto done;
}
nssPKIObject_AddInstance(&c->object, newInstance);
newInstance = nssToken_ImportTrust(tok, NULL, &c->encoding,
&c->issuer, &c->serial,
nssTrust->serverAuth,
nssTrust->clientAuth,
nssTrust->codeSigning,
nssTrust->emailProtection,
nssTrust->stepUpApproved, PR_TRUE);
}
if (newInstance) {
nssCryptokiObject_Destroy(newInstance);
nssrv = PR_SUCCESS;
} else {
nssrv = PR_FAILURE;
}
} else {
nssrv = PR_FAILURE;
}
done:
(void)nssTrust_Destroy(nssTrust);
return nssrv;
}
/*
** Delete trust objects matching the given slot.
** Returns error if a device fails to delete.
**
** This function has the side effect of moving the
** surviving entries to the front of the object list
** and nullifying the rest.
*/
static PRStatus
DeleteCertTrustMatchingSlot(PK11SlotInfo *pk11slot, nssPKIObject *tObject)
{
int numNotDestroyed = 0; /* the ones skipped plus the failures */
int failureCount = 0; /* actual deletion failures by devices */
unsigned int index;
nssPKIObject_AddRef(tObject);
nssPKIObject_Lock(tObject);
/* Keep going even if a module fails to delete. */
for (index = 0; index < tObject->numInstances; index++) {
nssCryptokiObject *instance = tObject->instances[index];
if (!instance) {
continue;
}
/* ReadOnly and not matched treated the same */
if (PK11_IsReadOnly(instance->token->pk11slot) ||
pk11slot != instance->token->pk11slot) {
tObject->instances[numNotDestroyed++] = instance;
continue;
}
/* Here we have found a matching one */
tObject->instances[index] = NULL;
if (nssToken_DeleteStoredObject(instance) == PR_SUCCESS) {
nssCryptokiObject_Destroy(instance);
} else {
tObject->instances[numNotDestroyed++] = instance;
failureCount++;
}
}
if (numNotDestroyed == 0) {
nss_ZFreeIf(tObject->instances);
tObject->numInstances = 0;
} else {
tObject->numInstances = numNotDestroyed;
}
nssPKIObject_Unlock(tObject);
nssPKIObject_Destroy(tObject);
return failureCount == 0 ? PR_SUCCESS : PR_FAILURE;
}
/*
** Delete trust objects matching the slot of the given certificate.
** Returns an error if any device fails to delete.
*/
NSS_EXTERN PRStatus
STAN_DeleteCertTrustMatchingSlot(NSSCertificate *c)
{
PRStatus nssrv = PR_SUCCESS;
NSSTrustDomain *td = STAN_GetDefaultTrustDomain();
NSSTrust *nssTrust = nssTrustDomain_FindTrustForCertificate(td, c);
/* caller made sure nssTrust isn't NULL */
nssPKIObject *tobject = &nssTrust->object;
nssPKIObject *cobject = &c->object;
unsigned int i;
/* Iterate through the cert and trust object instances looking for
* those with matching pk11 slots to delete. Even if some device
* can't delete we keep going. Keeping a status variable for the
* loop so that once it's failed the other gets set.
*/
NSSRWLock_LockRead(td->tokensLock);
nssPKIObject_AddRef(cobject);
nssPKIObject_Lock(cobject);
for (i = 0; i < cobject->numInstances; i++) {
nssCryptokiObject *cInstance = cobject->instances[i];
if (cInstance && !PK11_IsReadOnly(cInstance->token->pk11slot)) {
PRStatus status;
if (!tobject->numInstances || !tobject->instances) continue;
status = DeleteCertTrustMatchingSlot(cInstance->token->pk11slot, tobject);
if (status == PR_FAILURE) {
/* set the outer one but keep going */
nssrv = PR_FAILURE;
}
}
}
nssPKIObject_Unlock(cobject);
nssPKIObject_Destroy(cobject);
NSSRWLock_UnlockRead(td->tokensLock);
return nssrv;
}
/* CERT_TraversePermCertsForSubject */
NSS_IMPLEMENT PRStatus
nssTrustDomain_TraverseCertificatesBySubject (
NSSTrustDomain *td,
NSSDER *subject,
PRStatus (*callback)(NSSCertificate *c, void *arg),
void *arg
)
{
PRStatus nssrv = PR_SUCCESS;
NSSArena *tmpArena;
NSSCertificate **subjectCerts;
NSSCertificate *c;
PRIntn i;
tmpArena = NSSArena_Create();
if (!tmpArena) {
return PR_FAILURE;
}
subjectCerts = NSSTrustDomain_FindCertificatesBySubject(td, subject, NULL,
0, tmpArena);
if (subjectCerts) {
for (i=0, c = subjectCerts[i]; c; i++) {
nssrv = callback(c, arg);
if (nssrv != PR_SUCCESS) break;
}
}
nssArena_Destroy(tmpArena);
return nssrv;
}
/* CERT_TraversePermCertsForNickname */
NSS_IMPLEMENT PRStatus
nssTrustDomain_TraverseCertificatesByNickname (
NSSTrustDomain *td,
NSSUTF8 *nickname,
PRStatus (*callback)(NSSCertificate *c, void *arg),
void *arg
)
{
PRStatus nssrv = PR_SUCCESS;
NSSArena *tmpArena;
NSSCertificate **nickCerts;
NSSCertificate *c;
PRIntn i;
tmpArena = NSSArena_Create();
if (!tmpArena) {
return PR_FAILURE;
}
nickCerts = NSSTrustDomain_FindCertificatesByNickname(td, nickname, NULL,
0, tmpArena);
if (nickCerts) {
for (i=0, c = nickCerts[i]; c; i++) {
nssrv = callback(c, arg);
if (nssrv != PR_SUCCESS) break;
}
}
nssArena_Destroy(tmpArena);
return nssrv;
}
static void cert_dump_iter(const void *k, void *v, void *a)
{
NSSCertificate *c = (NSSCertificate *)k;
CERTCertificate *cert = STAN_GetCERTCertificate(c);
printf("[%2d] \"%s\"\n", c->object.refCount, cert->subjectName);
}
void
nss_DumpCertificateCacheInfo()
{
NSSTrustDomain *td;
NSSCryptoContext *cc;
td = STAN_GetDefaultTrustDomain();
cc = STAN_GetDefaultCryptoContext();
printf("\n\nCertificates in the cache:\n");
nssTrustDomain_DumpCacheInfo(td, cert_dump_iter, NULL);
printf("\n\nCertificates in the temporary store:\n");
if (cc->certStore) {
nssCertificateStore_DumpStoreInfo(cc->certStore, cert_dump_iter, NULL);
}
}
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