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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* The following handles the loading, unloading and management of
* various PCKS #11 modules
*/
#include <ctype.h>
#include <assert.h>
#include "pkcs11.h"
#include "seccomon.h"
#include "secmod.h"
#include "secmodi.h"
#include "secmodti.h"
#include "pki3hack.h"
#include "secerr.h"
#include "nss.h"
#include "utilpars.h"
#include "pk11pub.h"
/* create a new module */
static SECMODModule *
secmod_NewModule(void)
{
SECMODModule *newMod;
PLArenaPool *arena;
/* create an arena in which dllName and commonName can be
* allocated.
*/
arena = PORT_NewArena(512);
if (arena == NULL) {
return NULL;
}
newMod = (SECMODModule *)PORT_ArenaAlloc(arena, sizeof(SECMODModule));
if (newMod == NULL) {
PORT_FreeArena(arena, PR_FALSE);
return NULL;
}
/*
* initialize of the fields of the module
*/
newMod->arena = arena;
newMod->internal = PR_FALSE;
newMod->loaded = PR_FALSE;
newMod->isFIPS = PR_FALSE;
newMod->dllName = NULL;
newMod->commonName = NULL;
newMod->library = NULL;
newMod->functionList = NULL;
newMod->slotCount = 0;
newMod->slots = NULL;
newMod->slotInfo = NULL;
newMod->slotInfoCount = 0;
newMod->refCount = 1;
newMod->ssl[0] = 0;
newMod->ssl[1] = 0;
newMod->libraryParams = NULL;
newMod->moduleDBFunc = NULL;
newMod->parent = NULL;
newMod->isCritical = PR_FALSE;
newMod->isModuleDB = PR_FALSE;
newMod->moduleDBOnly = PR_FALSE;
newMod->trustOrder = 0;
newMod->cipherOrder = 0;
newMod->evControlMask = 0;
newMod->refLock = PZ_NewLock(nssILockRefLock);
if (newMod->refLock == NULL) {
PORT_FreeArena(arena, PR_FALSE);
return NULL;
}
return newMod;
}
/* private flags for isModuleDB (field in SECMODModule). */
/* The meaing of these flags is as follows:
*
* SECMOD_FLAG_MODULE_DB_IS_MODULE_DB - This is a module that accesses the
* database of other modules to load. Module DBs are loadable modules that
* tells NSS which PKCS #11 modules to load and when. These module DBs are
* chainable. That is, one module DB can load another one. NSS system init
* design takes advantage of this feature. In system NSS, a fixed system
* module DB loads the system defined libraries, then chains out to the
* traditional module DBs to load any system or user configured modules
* (like smart cards). This bit is the same as the already existing meaning
* of isModuleDB = PR_TRUE. None of the other module db flags should be set
* if this flag isn't on.
*
* SECMOD_FLAG_MODULE_DB_SKIP_FIRST - This flag tells NSS to skip the first
* PKCS #11 module presented by a module DB. This allows the OS to load a
* softoken from the system module, then ask the existing module DB code to
* load the other PKCS #11 modules in that module DB (skipping it's request
* to load softoken). This gives the system init finer control over the
* configuration of that softoken module.
*
* SECMOD_FLAG_MODULE_DB_DEFAULT_MODDB - This flag allows system init to mark a
* different module DB as the 'default' module DB (the one in which
* 'Add module' changes will go). Without this flag NSS takes the first
* module as the default Module DB, but in system NSS, that first module
* is the system module, which is likely read only (at least to the user).
* This allows system NSS to delegate those changes to the user's module DB,
* preserving the user's ability to load new PKCS #11 modules (which only
* affect him), from existing applications like Firefox.
*/
#define SECMOD_FLAG_MODULE_DB_IS_MODULE_DB 0x01 /* must be set if any of the \
*other flags are set */
#define SECMOD_FLAG_MODULE_DB_SKIP_FIRST 0x02
#define SECMOD_FLAG_MODULE_DB_DEFAULT_MODDB 0x04
#define SECMOD_FLAG_MODULE_DB_POLICY_ONLY 0x08
/* private flags for internal (field in SECMODModule). */
/* The meaing of these flags is as follows:
*
* SECMOD_FLAG_INTERNAL_IS_INTERNAL - This is a marks the the module is
* the internal module (that is, softoken). This bit is the same as the
* already existing meaning of internal = PR_TRUE. None of the other
* internal flags should be set if this flag isn't on.
*
* SECMOD_FLAG_MODULE_INTERNAL_KEY_SLOT - This flag allows system init to mark
* a different slot returned byt PK11_GetInternalKeySlot(). The 'primary'
* slot defined by this module will be the new internal key slot.
*/
#define SECMOD_FLAG_INTERNAL_IS_INTERNAL 0x01 /* must be set if any of \
*the other flags are set */
#define SECMOD_FLAG_INTERNAL_KEY_SLOT 0x02
/* private flags for policy check. */
#define SECMOD_FLAG_POLICY_CHECK_IDENTIFIER 0x01
#define SECMOD_FLAG_POLICY_CHECK_VALUE 0x02
/*
* for 3.4 we continue to use the old SECMODModule structure
*/
SECMODModule *
SECMOD_CreateModule(const char *library, const char *moduleName,
const char *parameters, const char *nss)
{
return SECMOD_CreateModuleEx(library, moduleName, parameters, nss, NULL);
}
/*
* NSS config options format:
*
* The specified ciphers will be allowed by policy, but an application
* may allow more by policy explicitly:
* config="allow=curve1:curve2:hash1:hash2:rsa-1024..."
*
* Only the specified hashes and curves will be allowed:
* config="disallow=all allow=sha1:sha256:secp256r1:secp384r1"
*
* Only the specified hashes and curves will be allowed, and
* RSA keys of 2048 or more will be accepted, and DH key exchange
* with 1024-bit primes or more:
* config="disallow=all allow=sha1:sha256:secp256r1:secp384r1:min-rsa=2048:min-dh=1024"
*
* A policy that enables the AES ciphersuites and the SECP256/384 curves:
* config="allow=aes128-cbc:aes128-gcm:TLS1.0:TLS1.2:TLS1.1:HMAC-SHA1:SHA1:SHA256:SHA384:RSA:ECDHE-RSA:SECP256R1:SECP384R1"
*
* Disallow values are parsed first, then allow values, independent of the
* order they appear.
*
* flags: turn on the following flags:
* policy-lock: turn off the ability for applications to change policy with
* the call NSS_SetAlgorithmPolicy or the other system policy
* calls (SSL_SetPolicy, etc.)
* ssl-lock: turn off the ability to change the ssl defaults.
*
* The following only apply to ssl cipher suites (future smime)
*
* enable: turn on ciphersuites by default.
* disable: turn off ciphersuites by default without disallowing them by policy.
*
*
*/
typedef struct {
const char *name;
unsigned name_size;
SECOidTag oid;
PRUint32 val;
} oidValDef;
typedef struct {
const char *name;
unsigned name_size;
PRInt32 option;
} optionFreeDef;
typedef struct {
const char *name;
unsigned name_size;
PRUint32 flag;
} policyFlagDef;
/*
* This table should be merged with the SECOID table.
*/
#define CIPHER_NAME(x) x, (sizeof(x) - 1)
static const oidValDef curveOptList[] = {
/* Curves */
{ CIPHER_NAME("PRIME192V1"), SEC_OID_ANSIX962_EC_PRIME192V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("PRIME192V2"), SEC_OID_ANSIX962_EC_PRIME192V2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("PRIME192V3"), SEC_OID_ANSIX962_EC_PRIME192V3,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("PRIME239V1"), SEC_OID_ANSIX962_EC_PRIME239V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("PRIME239V2"), SEC_OID_ANSIX962_EC_PRIME239V2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("PRIME239V3"), SEC_OID_ANSIX962_EC_PRIME239V3,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("PRIME256V1"), SEC_OID_ANSIX962_EC_PRIME256V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP112R1"), SEC_OID_SECG_EC_SECP112R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP112R2"), SEC_OID_SECG_EC_SECP112R2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP128R1"), SEC_OID_SECG_EC_SECP128R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP128R2"), SEC_OID_SECG_EC_SECP128R2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP160K1"), SEC_OID_SECG_EC_SECP160K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP160R1"), SEC_OID_SECG_EC_SECP160R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP160R2"), SEC_OID_SECG_EC_SECP160R2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP192K1"), SEC_OID_SECG_EC_SECP192K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP192R1"), SEC_OID_ANSIX962_EC_PRIME192V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP224K1"), SEC_OID_SECG_EC_SECP224K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP256K1"), SEC_OID_SECG_EC_SECP256K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP256R1"), SEC_OID_ANSIX962_EC_PRIME256V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP384R1"), SEC_OID_SECG_EC_SECP384R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECP521R1"), SEC_OID_SECG_EC_SECP521R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("CURVE25519"), SEC_OID_CURVE25519,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("XYBER768D00"), SEC_OID_XYBER768D00, 0 },
/* ANSI X9.62 named elliptic curves (characteristic two field) */
{ CIPHER_NAME("C2PNB163V1"), SEC_OID_ANSIX962_EC_C2PNB163V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2PNB163V2"), SEC_OID_ANSIX962_EC_C2PNB163V2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2PNB163V3"), SEC_OID_ANSIX962_EC_C2PNB163V3,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2PNB176V1"), SEC_OID_ANSIX962_EC_C2PNB176V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2TNB191V1"), SEC_OID_ANSIX962_EC_C2TNB191V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2TNB191V2"), SEC_OID_ANSIX962_EC_C2TNB191V2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2TNB191V3"), SEC_OID_ANSIX962_EC_C2TNB191V3,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2ONB191V4"), SEC_OID_ANSIX962_EC_C2ONB191V4,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2ONB191V5"), SEC_OID_ANSIX962_EC_C2ONB191V5,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2PNB208W1"), SEC_OID_ANSIX962_EC_C2PNB208W1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2TNB239V1"), SEC_OID_ANSIX962_EC_C2TNB239V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2TNB239V2"), SEC_OID_ANSIX962_EC_C2TNB239V2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2TNB239V3"), SEC_OID_ANSIX962_EC_C2TNB239V3,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2ONB239V4"), SEC_OID_ANSIX962_EC_C2ONB239V4,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2ONB239V5"), SEC_OID_ANSIX962_EC_C2ONB239V5,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2PNB272W1"), SEC_OID_ANSIX962_EC_C2PNB272W1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2PNB304W1"), SEC_OID_ANSIX962_EC_C2PNB304W1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2TNB359V1"), SEC_OID_ANSIX962_EC_C2TNB359V1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2PNB368W1"), SEC_OID_ANSIX962_EC_C2PNB368W1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("C2TNB431R1"), SEC_OID_ANSIX962_EC_C2TNB431R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
/* SECG named elliptic curves (characteristic two field) */
{ CIPHER_NAME("SECT113R1"), SEC_OID_SECG_EC_SECT113R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT131R1"), SEC_OID_SECG_EC_SECT113R2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT131R1"), SEC_OID_SECG_EC_SECT131R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT131R2"), SEC_OID_SECG_EC_SECT131R2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT163K1"), SEC_OID_SECG_EC_SECT163K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT163R1"), SEC_OID_SECG_EC_SECT163R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT163R2"), SEC_OID_SECG_EC_SECT163R2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT193R1"), SEC_OID_SECG_EC_SECT193R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT193R2"), SEC_OID_SECG_EC_SECT193R2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT233K1"), SEC_OID_SECG_EC_SECT233K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT233R1"), SEC_OID_SECG_EC_SECT233R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT239K1"), SEC_OID_SECG_EC_SECT239K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT283K1"), SEC_OID_SECG_EC_SECT283K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT283R1"), SEC_OID_SECG_EC_SECT283R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT409K1"), SEC_OID_SECG_EC_SECT409K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT409R1"), SEC_OID_SECG_EC_SECT409R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT571K1"), SEC_OID_SECG_EC_SECT571K1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("SECT571R1"), SEC_OID_SECG_EC_SECT571R1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_CERT_SIGNATURE },
};
static const oidValDef hashOptList[] = {
/* Hashes */
{ CIPHER_NAME("MD2"), SEC_OID_MD2,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("MD4"), SEC_OID_MD4,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("MD5"), SEC_OID_MD5,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA1"), SEC_OID_SHA1,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA224"), SEC_OID_SHA224,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA256"), SEC_OID_SHA256,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA384"), SEC_OID_SHA384,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA512"), SEC_OID_SHA512,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA3-224"), SEC_OID_SHA3_224,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA3-256"), SEC_OID_SHA3_256,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA3-384"), SEC_OID_SHA3_384,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("SHA3-512"), SEC_OID_SHA3_512,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_PKCS12 }
};
static const oidValDef macOptList[] = {
/* MACs */
{ CIPHER_NAME("HMAC-MD5"), SEC_OID_HMAC_MD5,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA1"), SEC_OID_HMAC_SHA1,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA224"), SEC_OID_HMAC_SHA224,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA256"), SEC_OID_HMAC_SHA256,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA384"), SEC_OID_HMAC_SHA384,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA512"), SEC_OID_HMAC_SHA512,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA3-224"), SEC_OID_HMAC_SHA3_224,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA3-256"), SEC_OID_HMAC_SHA3_256,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA3-384"), SEC_OID_HMAC_SHA3_384,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("HMAC-SHA3-512"), SEC_OID_HMAC_SHA3_512,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
};
static const oidValDef cipherOptList[] = {
/* Ciphers */
{ CIPHER_NAME("AES128-CBC"), SEC_OID_AES_128_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("AES192-CBC"), SEC_OID_AES_192_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("AES256-CBC"), SEC_OID_AES_256_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("AES128-GCM"), SEC_OID_AES_128_GCM, NSS_USE_ALG_IN_SSL },
{ CIPHER_NAME("AES192-GCM"), SEC_OID_AES_192_GCM, NSS_USE_ALG_IN_SSL },
{ CIPHER_NAME("AES256-GCM"), SEC_OID_AES_256_GCM, NSS_USE_ALG_IN_SSL },
{ CIPHER_NAME("CAMELLIA128-CBC"), SEC_OID_CAMELLIA_128_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("CAMELLIA192-CBC"), SEC_OID_CAMELLIA_192_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("CAMELLIA256-CBC"), SEC_OID_CAMELLIA_256_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("CHACHA20-POLY1305"), SEC_OID_CHACHA20_POLY1305, NSS_USE_ALG_IN_SSL },
{ CIPHER_NAME("SEED-CBC"), SEC_OID_SEED_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("DES-EDE3-CBC"), SEC_OID_DES_EDE3_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("DES-40-CBC"), SEC_OID_DES_40_CBC,
NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SMIME | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("DES-CBC"), SEC_OID_DES_CBC, NSS_USE_ALG_IN_SSL },
{ CIPHER_NAME("NULL-CIPHER"), SEC_OID_NULL_CIPHER, NSS_USE_ALG_IN_SSL },
{ CIPHER_NAME("RC2"), SEC_OID_RC2_CBC, NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("RC2-40-CBC"), SEC_OID_RC2_40_CBC, NSS_USE_ALG_IN_SMIME },
{ CIPHER_NAME("RC2-64-CBC"), SEC_OID_RC2_64_CBC, NSS_USE_ALG_IN_SMIME },
{ CIPHER_NAME("RC2-128-CBC"), SEC_OID_RC2_128_CBC, NSS_USE_ALG_IN_SMIME },
{ CIPHER_NAME("RC4"), SEC_OID_RC4, NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_PKCS12 },
{ CIPHER_NAME("IDEA"), SEC_OID_IDEA_CBC, NSS_USE_ALG_IN_SSL },
};
static const oidValDef kxOptList[] = {
/* Key exchange */
{ CIPHER_NAME("RSA"), SEC_OID_TLS_RSA, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("RSA-EXPORT"), SEC_OID_TLS_RSA_EXPORT, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("DHE-RSA"), SEC_OID_TLS_DHE_RSA, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("DHE-DSS"), SEC_OID_TLS_DHE_DSS, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("DH-RSA"), SEC_OID_TLS_DH_RSA, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("DH-DSS"), SEC_OID_TLS_DH_DSS, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("ECDHE-ECDSA"), SEC_OID_TLS_ECDHE_ECDSA, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("ECDHE-RSA"), SEC_OID_TLS_ECDHE_RSA, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("ECDH-ECDSA"), SEC_OID_TLS_ECDH_ECDSA, NSS_USE_ALG_IN_SSL_KX },
{ CIPHER_NAME("ECDH-RSA"), SEC_OID_TLS_ECDH_RSA, NSS_USE_ALG_IN_SSL_KX },
};
static const oidValDef smimeKxOptList[] = {
/* Key exchange */
{ CIPHER_NAME("RSA-PKCS"), SEC_OID_PKCS1_RSA_ENCRYPTION, NSS_USE_ALG_IN_SMIME_KX },
{ CIPHER_NAME("RSA-OAEP"), SEC_OID_PKCS1_RSA_OAEP_ENCRYPTION, NSS_USE_ALG_IN_SMIME_KX },
{ CIPHER_NAME("ECDH"), SEC_OID_ECDH_KEA, NSS_USE_ALG_IN_SMIME_KX },
{ CIPHER_NAME("DH"), SEC_OID_X942_DIFFIE_HELMAN_KEY, NSS_USE_ALG_IN_SMIME_KX },
};
static const oidValDef signOptList[] = {
/* Signatures */
{ CIPHER_NAME("DSA"), SEC_OID_ANSIX9_DSA_SIGNATURE,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE },
{ CIPHER_NAME("RSA-PKCS"), SEC_OID_PKCS1_RSA_ENCRYPTION,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE },
{ CIPHER_NAME("RSA-PSS"), SEC_OID_PKCS1_RSA_PSS_SIGNATURE,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE },
{ CIPHER_NAME("ECDSA"), SEC_OID_ANSIX962_EC_PUBLIC_KEY,
NSS_USE_ALG_IN_SSL_KX | NSS_USE_ALG_IN_SIGNATURE },
{ CIPHER_NAME("ED25519"), SEC_OID_ED25519_PUBLIC_KEY,
NSS_USE_ALG_IN_SIGNATURE },
};
typedef struct {
const oidValDef *list;
PRUint32 entries;
const char *description;
PRBool allowEmpty;
} algListsDef;
static const algListsDef algOptLists[] = {
{ curveOptList, PR_ARRAY_SIZE(curveOptList), "ECC", PR_FALSE },
{ hashOptList, PR_ARRAY_SIZE(hashOptList), "HASH", PR_FALSE },
{ macOptList, PR_ARRAY_SIZE(macOptList), "MAC", PR_FALSE },
{ cipherOptList, PR_ARRAY_SIZE(cipherOptList), "CIPHER", PR_FALSE },
{ kxOptList, PR_ARRAY_SIZE(kxOptList), "SSL-KX", PR_FALSE },
{ smimeKxOptList, PR_ARRAY_SIZE(smimeKxOptList), "SMIME-KX", PR_TRUE },
{ signOptList, PR_ARRAY_SIZE(signOptList), "OTHER-SIGN", PR_FALSE },
};
static const optionFreeDef sslOptList[] = {
/* Versions */
{ CIPHER_NAME("SSL2.0"), 0x002 },
{ CIPHER_NAME("SSL3.0"), 0x300 },
{ CIPHER_NAME("SSL3.1"), 0x301 },
{ CIPHER_NAME("TLS1.0"), 0x301 },
{ CIPHER_NAME("TLS1.1"), 0x302 },
{ CIPHER_NAME("TLS1.2"), 0x303 },
{ CIPHER_NAME("TLS1.3"), 0x304 },
{ CIPHER_NAME("DTLS1.0"), 0x302 },
{ CIPHER_NAME("DTLS1.1"), 0x302 },
{ CIPHER_NAME("DTLS1.2"), 0x303 },
{ CIPHER_NAME("DTLS1.3"), 0x304 },
};
static const optionFreeDef keySizeFlagsList[] = {
{ CIPHER_NAME("KEY-SIZE-SSL"), NSS_KEY_SIZE_POLICY_SSL_FLAG },
{ CIPHER_NAME("KEY-SIZE-SIGN"), NSS_KEY_SIZE_POLICY_SIGN_FLAG },
{ CIPHER_NAME("KEY-SIZE-VERIFY"), NSS_KEY_SIZE_POLICY_VERIFY_FLAG },
{ CIPHER_NAME("KEY-SIZE-SMIME"), NSS_KEY_SIZE_POLICY_SMIME_FLAG },
{ CIPHER_NAME("KEY-SIZE-ALL"), NSS_KEY_SIZE_POLICY_ALL_FLAGS },
};
static const optionFreeDef freeOptList[] = {
/* Restrictions for asymetric keys */
{ CIPHER_NAME("RSA-MIN"), NSS_RSA_MIN_KEY_SIZE },
{ CIPHER_NAME("DH-MIN"), NSS_DH_MIN_KEY_SIZE },
{ CIPHER_NAME("DSA-MIN"), NSS_DSA_MIN_KEY_SIZE },
{ CIPHER_NAME("ECC-MIN"), NSS_ECC_MIN_KEY_SIZE },
/* what operations doe the key size apply to */
{ CIPHER_NAME("KEY-SIZE-FLAGS"), NSS_KEY_SIZE_POLICY_FLAGS },
/* constraints on SSL Protocols */
{ CIPHER_NAME("TLS-VERSION-MIN"), NSS_TLS_VERSION_MIN_POLICY },
{ CIPHER_NAME("TLS-VERSION-MAX"), NSS_TLS_VERSION_MAX_POLICY },
/* constraints on DTLS Protocols */
{ CIPHER_NAME("DTLS-VERSION-MIN"), NSS_DTLS_VERSION_MIN_POLICY },
{ CIPHER_NAME("DTLS-VERSION-MAX"), NSS_DTLS_VERSION_MAX_POLICY }
};
static const policyFlagDef policyFlagList[] = {
{ CIPHER_NAME("SSL"), NSS_USE_ALG_IN_SSL },
{ CIPHER_NAME("SSL-KEY-EXCHANGE"), NSS_USE_ALG_IN_SSL_KX },
/* add other key exhanges in the future */
{ CIPHER_NAME("KEY-EXCHANGE"), NSS_USE_ALG_IN_KEY_EXCHANGE },
{ CIPHER_NAME("CERT-SIGNATURE"), NSS_USE_ALG_IN_CERT_SIGNATURE },
{ CIPHER_NAME("CMS-SIGNATURE"), NSS_USE_ALG_IN_SMIME_SIGNATURE },
{ CIPHER_NAME("SMIME-SIGNATURE"), NSS_USE_ALG_IN_SMIME_SIGNATURE },
{ CIPHER_NAME("ALL-SIGNATURE"), NSS_USE_ALG_IN_SIGNATURE },
{ CIPHER_NAME("PKCS12"), NSS_USE_ALG_IN_PKCS12 },
/* only use in allow */
{ CIPHER_NAME("PKCS12-LEGACY"), NSS_USE_ALG_IN_PKCS12_DECRYPT },
/* only use in disallow */
{ CIPHER_NAME("PKCS12-ENCRYPT"), NSS_USE_ALG_IN_PKCS12_ENCRYPT },
{ CIPHER_NAME("SMIME"), NSS_USE_ALG_IN_SMIME },
/* only use in allow, enable */
{ CIPHER_NAME("SMIME-LEGACY"), NSS_USE_ALG_IN_SMIME_LEGACY },
/* only use in disallow, disable */
{ CIPHER_NAME("SMIME-ENCRYPT"), NSS_USE_ALG_IN_SMIME_ENCRYPT },
{ CIPHER_NAME("SMIME-KEY-EXCHANGE"), NSS_USE_ALG_IN_SMIME_KX },
/* only use in allow */
{ CIPHER_NAME("SMIME-KEY-EXCHANGE-LEGACY"), NSS_USE_ALG_IN_SMIME_KX_LEGACY },
/* only use in disallow */
{ CIPHER_NAME("SMIME-KEY-EXCHANGE-ENCRYPT"), NSS_USE_ALG_IN_SMIME_KX_ENCRYPT },
/* sign turns off all signatures, but doesn't change the
* allowance for specific signatures... for example:
* disallow=sha256/all allow=sha256/signature
* doesn't allow cert-signatures or sime-signatures, where
* disallow=sha256/all allow=sha256/all-signature
* does. however,
* disallow=sha256/signature
* and
* disallow=sha256/all-signature
* are equivalent in effect */
{ CIPHER_NAME("SIGNATURE"), NSS_USE_ALG_IN_ANY_SIGNATURE },
/* enable/allow algorithms for legacy (read/verify)operations */
{ CIPHER_NAME("LEGACY"), NSS_USE_ALG_IN_PKCS12_DECRYPT |
NSS_USE_ALG_IN_SMIME_LEGACY |
NSS_USE_ALG_IN_SMIME_KX_LEGACY },
/* enable/disable everything */
{ CIPHER_NAME("ALL"), NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SSL_KX |
NSS_USE_ALG_IN_PKCS12 | NSS_USE_ALG_IN_SMIME |
NSS_USE_ALG_IN_SIGNATURE |
NSS_USE_ALG_IN_SMIME_KX },
{ CIPHER_NAME("NONE"), 0 }
};
/*
* Get the next cipher on the list. point to the next one in 'next'.
* return the length;
*/
static const char *
secmod_ArgGetSubValue(const char *cipher, char sep1, char sep2,
int *len, const char **next)
{
const char *start = cipher;
if (start == NULL) {
*len = 0;
*next = NULL;
return start;
}
for (; *cipher && *cipher != sep2; cipher++) {
if (*cipher == sep1) {
*next = cipher + 1;
*len = cipher - start;
return start;
}
}
*next = NULL;
*len = cipher - start;
return start;
}
static PRUint32
secmod_parsePolicyValue(const char *policyFlags, int policyLength,
PRBool printPolicyFeedback, PRUint32 policyCheckFlags)
{
const char *flag, *currentString;
PRUint32 flags = 0;
int i;
for (currentString = policyFlags; currentString &&
currentString < policyFlags + policyLength;) {
int length;
PRBool unknown = PR_TRUE;
flag = secmod_ArgGetSubValue(currentString, ',', ':', &length,
&currentString);
if (length == 0) {
continue;
}
for (i = 0; i < PR_ARRAY_SIZE(policyFlagList); i++) {
const policyFlagDef *policy = &policyFlagList[i];
unsigned name_size = policy->name_size;
if ((policy->name_size == length) &&
PORT_Strncasecmp(policy->name, flag, name_size) == 0) {
flags |= policy->flag;
unknown = PR_FALSE;
break;
}
}
if (unknown && printPolicyFeedback &&
(policyCheckFlags & SECMOD_FLAG_POLICY_CHECK_VALUE)) {
PR_SetEnv("NSS_POLICY_FAIL=1");
fprintf(stderr, "NSS-POLICY-FAIL %.*s: unknown value: %.*s\n",
policyLength, policyFlags, length, flag);
}
}
return flags;
}
/* allow symbolic names for values. The only ones currently defines or
* SSL protocol versions. */
static SECStatus
secmod_getPolicyOptValue(const char *policyValue, int policyValueLength,
PRInt32 *result)
{
PRInt32 val = atoi(policyValue);
int i;
if ((val != 0) || (*policyValue == '0')) {
*result = val;
return SECSuccess;
}
if (policyValueLength == 0) {
return SECFailure;
}
/* handle any ssl strings */
for (i = 0; i < PR_ARRAY_SIZE(sslOptList); i++) {
if (policyValueLength == sslOptList[i].name_size &&
PORT_Strncasecmp(sslOptList[i].name, policyValue,
sslOptList[i].name_size) == 0) {
*result = sslOptList[i].option;
return SECSuccess;
}
}
/* handle key_size flags. Each flag represents a bit, which
* gets or'd together. They can be separated by , | or + */
val = 0;
while (policyValueLength > 0) {
PRBool found = PR_FALSE;
for (i = 0; i < PR_ARRAY_SIZE(keySizeFlagsList); i++) {
if (PORT_Strncasecmp(keySizeFlagsList[i].name, policyValue,
keySizeFlagsList[i].name_size) == 0) {
val |= keySizeFlagsList[i].option;
found = PR_TRUE;
policyValue += keySizeFlagsList[i].name_size;
policyValueLength -= keySizeFlagsList[i].name_size;
break;
}
}
if (!found) {
return SECFailure;
}
if (*policyValue == ',' || *policyValue == '|' || *policyValue == '+') {
policyValue++;
policyValueLength--;
}
}
*result = val;
return SECSuccess;
}
/* Policy operations:
* Disallow: operation is disallowed by policy. Implies disabled.
* Allow: operation is allowed by policy (but could be disabled).
* Disable: operation is turned off by default (but could be allowed).
* Enable: operation is enabled by default. Implies allowed.
*/
typedef enum {
NSS_DISALLOW,
NSS_ALLOW,
NSS_DISABLE,
NSS_ENABLE
} NSSPolicyOperation;
/* Enable/Disable only apply to SSL cipher suites and S/MIME symetric algorithms.
* Enable/Disable is implemented by clearing the DEFAULT_NOT_VALID
* flag, then setting the NSS_USE_DEFAULT_SSL_ENABLE and
* NSS_USE_DEFAULT_SMIME_ENABLE flags to the correct value. The ssl
* policy code will then sort out what to set based on ciphers and
* cipher suite values and the smime policy code will sort
* out which ciphers to include in capabilities based on these values */
static SECStatus
secmod_setDefault(SECOidTag oid, NSSPolicyOperation operation,
PRUint32 value)
{
SECStatus rv = SECSuccess;
PRUint32 policy;
PRUint32 useDefault = 0;
PRUint32 set = 0;
/* we always clear the default not valid flag as this operation will
* make the defaults valid */
PRUint32 clear = NSS_USE_DEFAULT_NOT_VALID;
/* what values are we trying to change */
/* if either SSL or SSL_KX is set, enable SSL */
if (value & (NSS_USE_ALG_IN_SSL | NSS_USE_ALG_IN_SSL_KX)) {
useDefault |= NSS_USE_DEFAULT_SSL_ENABLE;
}
/* only bulk ciphers are configured as enable in S/MIME, only
* enable them if both SMIME bits are set */
if ((value & NSS_USE_ALG_IN_SMIME) == NSS_USE_ALG_IN_SMIME) {
useDefault |= NSS_USE_DEFAULT_SMIME_ENABLE;
}
/* on disable we clear, on enable we set */
if (operation == NSS_DISABLE) {
clear |= useDefault;
} else {
/* we also turn the cipher on by policy if we enable it,
* so include the policy bits */
set |= value | useDefault;
}
/* if we haven't set the not valid flag yet, then we need to
* clear any of the other bits we aren't actually setting as well.
*/
rv = NSS_GetAlgorithmPolicy(oid, &policy);
if (rv != SECSuccess) {
return rv;
}
if (policy & NSS_USE_DEFAULT_NOT_VALID) {
clear |= ((NSS_USE_DEFAULT_SSL_ENABLE | NSS_USE_DEFAULT_SMIME_ENABLE) &
~set);
}
return NSS_SetAlgorithmPolicy(oid, set, clear);
}
/* apply the operator specific policy */
SECStatus
secmod_setPolicyOperation(SECOidTag oid, NSSPolicyOperation operation,
PRUint32 value)
{
SECStatus rv = SECSuccess;
switch (operation) {
case NSS_DISALLOW:
/* clear the requested policy bits */
rv = NSS_SetAlgorithmPolicy(oid, 0, value);
break;
case NSS_ALLOW:
/* set the requested policy bits */
rv = NSS_SetAlgorithmPolicy(oid, value, 0);
break;
case NSS_DISABLE:
case NSS_ENABLE:
rv = secmod_setDefault(oid, operation, value);
break;
default:
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
rv = SECFailure;
break;
}
return rv;
}
const char *
secmod_getOperationString(NSSPolicyOperation operation)
{
switch (operation) {
case NSS_DISALLOW:
return "disallow";
case NSS_ALLOW:
return "allow";
case NSS_DISABLE:
return "disable";
case NSS_ENABLE:
return "enable";
default:
break;
}
return "invalid";
}
static SECStatus
secmod_applyCryptoPolicy(const char *policyString, NSSPolicyOperation operation,
PRBool printPolicyFeedback, PRUint32 policyCheckFlags)
{
const char *cipher, *currentString;
unsigned i, j;
SECStatus rv = SECSuccess;
PRBool unknown;
if (policyString == NULL || policyString[0] == 0) {
return SECSuccess; /* do nothing */
}
/* if we change any of these, make sure it gets applied in ssl as well */
NSS_SetAlgorithmPolicy(SEC_OID_APPLY_SSL_POLICY, NSS_USE_POLICY_IN_SSL, 0);
for (currentString = policyString; currentString;) {
int length;
PRBool newValue = PR_FALSE;
cipher = secmod_ArgGetSubValue(currentString, ':', 0, &length,
&currentString);
unknown = PR_TRUE;
if (length >= 3 && cipher[3] == '/') {
newValue = PR_TRUE;
}
if ((newValue || (length == 3)) && PORT_Strncasecmp(cipher, "all", 3) == 0) {
/* disable or enable all options by default */
PRUint32 value = 0;
if (newValue) {
value = secmod_parsePolicyValue(&cipher[3] + 1, length - 3 - 1, printPolicyFeedback, policyCheckFlags);
}
for (i = 0; i < PR_ARRAY_SIZE(algOptLists); i++) {
const algListsDef *algOptList = &algOptLists[i];
for (j = 0; j < algOptList->entries; j++) {
if (!newValue) {
value = algOptList->list[j].val;
}
secmod_setPolicyOperation(algOptList->list[j].oid, operation, value);
}
}
continue;
}
for (i = 0; i < PR_ARRAY_SIZE(algOptLists); i++) {
const algListsDef *algOptList = &algOptLists[i];
for (j = 0; j < algOptList->entries; j++) {
const oidValDef *algOpt = &algOptList->list[j];
unsigned name_size = algOpt->name_size;
PRBool newOption = PR_FALSE;
if ((length >= name_size) && (cipher[name_size] == '/')) {
newOption = PR_TRUE;
}
if ((newOption || algOpt->name_size == length) &&
PORT_Strncasecmp(algOpt->name, cipher, name_size) == 0) {
PRUint32 value = algOpt->val;
if (newOption) {
value = secmod_parsePolicyValue(&cipher[name_size] + 1,
length - name_size - 1,
printPolicyFeedback,
policyCheckFlags);
}
rv = secmod_setPolicyOperation(algOptList->list[j].oid, operation, value);
if (rv != SECSuccess) {
/* could not enable option */
/* NSS_SetAlgorithPolicy should have set the error code */
return SECFailure;
}
unknown = PR_FALSE;
break;
}
}
}
if (!unknown) {
continue;
}
for (i = 0; i < PR_ARRAY_SIZE(freeOptList); i++) {
const optionFreeDef *freeOpt = &freeOptList[i];
unsigned name_size = freeOpt->name_size;
if ((length > name_size) && cipher[name_size] == '=' &&
PORT_Strncasecmp(freeOpt->name, cipher, name_size) == 0) {
PRInt32 val;
const char *policyValue = &cipher[name_size + 1];
int policyValueLength = length - name_size - 1;
rv = secmod_getPolicyOptValue(policyValue, policyValueLength,
&val);
if (rv != SECSuccess) {
if (printPolicyFeedback &&
(policyCheckFlags & SECMOD_FLAG_POLICY_CHECK_VALUE)) {
PR_SetEnv("NSS_POLICY_FAIL=1");
fprintf(stderr, "NSS-POLICY-FAIL %.*s: unknown value: %.*s\n",
length, cipher, policyValueLength, policyValue);
}
return SECFailure;
}
rv = NSS_OptionSet(freeOpt->option, val);
if (rv != SECSuccess) {
/* could not enable option */
/* NSS_OptionSet should have set the error code */
return SECFailure;
}
/* to allow the policy to expand in the future. ignore ciphers
* we don't understand */
unknown = PR_FALSE;
break;
}
}
if (unknown && printPolicyFeedback &&
(policyCheckFlags & SECMOD_FLAG_POLICY_CHECK_IDENTIFIER)) {
PR_SetEnv("NSS_POLICY_FAIL=1");
fprintf(stderr, "NSS-POLICY-FAIL %s: unknown identifier: %.*s\n",
secmod_getOperationString(operation), length, cipher);
}
}
return rv;
}
static void
secmod_sanityCheckCryptoPolicy(void)
{
unsigned i, j;
SECStatus rv = SECSuccess;
unsigned num_kx_enabled = 0;
unsigned num_ssl_enabled = 0;
unsigned num_sig_enabled = 0;
unsigned enabledCount[PR_ARRAY_SIZE(algOptLists)];
const char *sWarn = "WARN";
const char *sInfo = "INFO";
PRBool haveWarning = PR_FALSE;
for (i = 0; i < PR_ARRAY_SIZE(algOptLists); i++) {
const algListsDef *algOptList = &algOptLists[i];
enabledCount[i] = 0;
for (j = 0; j < algOptList->entries; j++) {
const oidValDef *algOpt = &algOptList->list[j];
PRUint32 value;
PRBool anyEnabled = PR_FALSE;
rv = NSS_GetAlgorithmPolicy(algOpt->oid, &value);
if (rv != SECSuccess) {
PR_SetEnv("NSS_POLICY_FAIL=1");
fprintf(stderr, "NSS-POLICY-FAIL: internal failure with NSS_GetAlgorithmPolicy at %u\n", i);
return;
}
if ((algOpt->val & NSS_USE_ALG_IN_SSL_KX) && (value & NSS_USE_ALG_IN_SSL_KX)) {
++num_kx_enabled;
anyEnabled = PR_TRUE;
fprintf(stderr, "NSS-POLICY-INFO: %s is enabled for SSL-KX\n", algOpt->name);
}
if ((algOpt->val & NSS_USE_ALG_IN_SSL) && (value & NSS_USE_ALG_IN_SSL)) {
++num_ssl_enabled;
anyEnabled = PR_TRUE;
fprintf(stderr, "NSS-POLICY-INFO: %s is enabled for SSL\n", algOpt->name);
}
if ((algOpt->val & NSS_USE_ALG_IN_CERT_SIGNATURE) &&
((value & NSS_USE_CERT_SIGNATURE_OK) == NSS_USE_CERT_SIGNATURE_OK)) {
++num_sig_enabled;
anyEnabled = PR_TRUE;
fprintf(stderr, "NSS-POLICY-INFO: %s is enabled for CERT-SIGNATURE\n", algOpt->name);
}
if (anyEnabled) {
++enabledCount[i];
}
}
}
fprintf(stderr, "NSS-POLICY-%s: NUMBER-OF-SSL-ALG-KX: %u\n", num_kx_enabled ? sInfo : sWarn, num_kx_enabled);
fprintf(stderr, "NSS-POLICY-%s: NUMBER-OF-SSL-ALG: %u\n", num_ssl_enabled ? sInfo : sWarn, num_ssl_enabled);
fprintf(stderr, "NSS-POLICY-%s: NUMBER-OF-CERT-SIG: %u\n", num_sig_enabled ? sInfo : sWarn, num_sig_enabled);
if (!num_kx_enabled || !num_ssl_enabled || !num_sig_enabled) {
haveWarning = PR_TRUE;
}
for (i = 0; i < PR_ARRAY_SIZE(algOptLists); i++) {
const algListsDef *algOptList = &algOptLists[i];
fprintf(stderr, "NSS-POLICY-%s: NUMBER-OF-%s: %u\n", enabledCount[i] ? sInfo : sWarn, algOptList->description, enabledCount[i]);
if (!enabledCount[i] && !algOptList->allowEmpty) {
haveWarning = PR_TRUE;
}
}
if (haveWarning) {
PR_SetEnv("NSS_POLICY_WARN=1");
}
}
static SECStatus
secmod_parseCryptoPolicy(const char *policyConfig, PRBool printPolicyFeedback,
PRUint32 policyCheckFlags)
{
char *args;
SECStatus rv;
if (policyConfig == NULL) {
return SECSuccess; /* no policy given */
}
/* make sure we initialize the oid table and set all the default policy
* values first so we can override them here */
rv = SECOID_Init();
if (rv != SECSuccess) {
return rv;
}
args = NSSUTIL_ArgGetParamValue("disallow", policyConfig);
rv = secmod_applyCryptoPolicy(args, NSS_DISALLOW, printPolicyFeedback,
policyCheckFlags);
if (args)
PORT_Free(args);
if (rv != SECSuccess) {
return rv;
}
args = NSSUTIL_ArgGetParamValue("allow", policyConfig);
rv = secmod_applyCryptoPolicy(args, NSS_ALLOW, printPolicyFeedback,
policyCheckFlags);
if (args)
PORT_Free(args);
if (rv != SECSuccess) {
return rv;
}
args = NSSUTIL_ArgGetParamValue("disable", policyConfig);
rv = secmod_applyCryptoPolicy(args, NSS_DISABLE, printPolicyFeedback,
policyCheckFlags);
if (args)
PORT_Free(args);
if (rv != SECSuccess) {
return rv;
}
args = NSSUTIL_ArgGetParamValue("enable", policyConfig);
rv = secmod_applyCryptoPolicy(args, NSS_ENABLE, printPolicyFeedback,
policyCheckFlags);
if (args)
PORT_Free(args);
if (rv != SECSuccess) {
return rv;
}
/* this has to be last. Everything after this will be a noop */
if (NSSUTIL_ArgHasFlag("flags", "ssl-lock", policyConfig)) {
PRInt32 locks;
/* don't overwrite other (future) lock flags */
rv = NSS_OptionGet(NSS_DEFAULT_LOCKS, &locks);
if (rv == SECSuccess) {
rv = NSS_OptionSet(NSS_DEFAULT_LOCKS, locks | NSS_DEFAULT_SSL_LOCK);
}
if (rv != SECSuccess) {
return rv;
}
}
if (NSSUTIL_ArgHasFlag("flags", "policy-lock", policyConfig)) {
NSS_LockPolicy();
}
if (printPolicyFeedback) {
/* This helps to distinguish configurations that don't contain any
* policy config= statement. */
PR_SetEnv("NSS_POLICY_LOADED=1");
fprintf(stderr, "NSS-POLICY-INFO: LOADED-SUCCESSFULLY\n");
secmod_sanityCheckCryptoPolicy();
}
return rv;
}
static PRUint32
secmod_parsePolicyCheckFlags(const char *nss)
{
PRUint32 policyCheckFlags = 0;
if (NSSUTIL_ArgHasFlag("flags", "policyCheckIdentifier", nss)) {
policyCheckFlags |= SECMOD_FLAG_POLICY_CHECK_IDENTIFIER;
}
if (NSSUTIL_ArgHasFlag("flags", "policyCheckValue", nss)) {
policyCheckFlags |= SECMOD_FLAG_POLICY_CHECK_VALUE;
}
return policyCheckFlags;
}
/*
* for 3.4 we continue to use the old SECMODModule structure
*/
SECMODModule *
SECMOD_CreateModuleEx(const char *library, const char *moduleName,
const char *parameters, const char *nss,
const char *config)
{
SECMODModule *mod;
SECStatus rv;
char *slotParams, *ciphers;
PRBool printPolicyFeedback = NSSUTIL_ArgHasFlag("flags", "printPolicyFeedback", nss);
PRUint32 policyCheckFlags = secmod_parsePolicyCheckFlags(nss);
rv = secmod_parseCryptoPolicy(config, printPolicyFeedback, policyCheckFlags);
/* do not load the module if policy parsing fails */
if (rv != SECSuccess) {
if (printPolicyFeedback) {
PR_SetEnv("NSS_POLICY_FAIL=1");
fprintf(stderr, "NSS-POLICY-FAIL: policy config parsing failed, not loading module %s\n", moduleName);
}
return NULL;
}
mod = secmod_NewModule();
if (mod == NULL)
return NULL;
mod->commonName = PORT_ArenaStrdup(mod->arena, moduleName ? moduleName : "");
if (library) {
mod->dllName = PORT_ArenaStrdup(mod->arena, library);
}
/* new field */
if (parameters) {
mod->libraryParams = PORT_ArenaStrdup(mod->arena, parameters);
}
mod->internal = NSSUTIL_ArgHasFlag("flags", "internal", nss);
mod->isFIPS = NSSUTIL_ArgHasFlag("flags", "FIPS", nss);
/* if the system FIPS mode is enabled, force FIPS to be on */
if (SECMOD_GetSystemFIPSEnabled()) {
mod->isFIPS = PR_TRUE;
}
mod->isCritical = NSSUTIL_ArgHasFlag("flags", "critical", nss);
slotParams = NSSUTIL_ArgGetParamValue("slotParams", nss);
mod->slotInfo = NSSUTIL_ArgParseSlotInfo(mod->arena, slotParams,
&mod->slotInfoCount);
if (slotParams)
PORT_Free(slotParams);
/* new field */
mod->trustOrder = NSSUTIL_ArgReadLong("trustOrder", nss,
NSSUTIL_DEFAULT_TRUST_ORDER, NULL);
/* new field */
mod->cipherOrder = NSSUTIL_ArgReadLong("cipherOrder", nss,
NSSUTIL_DEFAULT_CIPHER_ORDER, NULL);
/* new field */
mod->isModuleDB = NSSUTIL_ArgHasFlag("flags", "moduleDB", nss);
mod->moduleDBOnly = NSSUTIL_ArgHasFlag("flags", "moduleDBOnly", nss);
if (mod->moduleDBOnly)
mod->isModuleDB = PR_TRUE;
/* we need more bits, but we also want to preserve binary compatibility
* so we overload the isModuleDB PRBool with additional flags.
* These flags are only valid if mod->isModuleDB is already set.
* NOTE: this depends on the fact that PRBool is at least a char on
* all platforms. These flags are only valid if moduleDB is set, so
* code checking if (mod->isModuleDB) will continue to work correctly. */
if (mod->isModuleDB) {
char flags = SECMOD_FLAG_MODULE_DB_IS_MODULE_DB;
if (NSSUTIL_ArgHasFlag("flags", "skipFirst", nss)) {
flags |= SECMOD_FLAG_MODULE_DB_SKIP_FIRST;
}
if (NSSUTIL_ArgHasFlag("flags", "defaultModDB", nss)) {
flags |= SECMOD_FLAG_MODULE_DB_DEFAULT_MODDB;
}
if (NSSUTIL_ArgHasFlag("flags", "policyOnly", nss)) {
flags |= SECMOD_FLAG_MODULE_DB_POLICY_ONLY;
}
/* additional moduleDB flags could be added here in the future */
mod->isModuleDB = (PRBool)flags;
}
if (mod->internal) {
char flags = SECMOD_FLAG_INTERNAL_IS_INTERNAL;
if (NSSUTIL_ArgHasFlag("flags", "internalKeySlot", nss)) {
flags |= SECMOD_FLAG_INTERNAL_KEY_SLOT;
}
mod->internal = (PRBool)flags;
}
ciphers = NSSUTIL_ArgGetParamValue("ciphers", nss);
NSSUTIL_ArgParseCipherFlags(&mod->ssl[0], ciphers);
if (ciphers)
PORT_Free(ciphers);
secmod_PrivateModuleCount++;
return mod;
}
PRBool
SECMOD_GetSkipFirstFlag(SECMODModule *mod)
{
char flags = (char)mod->isModuleDB;
return (flags & SECMOD_FLAG_MODULE_DB_SKIP_FIRST) ? PR_TRUE : PR_FALSE;
}
PRBool
SECMOD_GetDefaultModDBFlag(SECMODModule *mod)
{
char flags = (char)mod->isModuleDB;
return (flags & SECMOD_FLAG_MODULE_DB_DEFAULT_MODDB) ? PR_TRUE : PR_FALSE;
}
PRBool
secmod_PolicyOnly(SECMODModule *mod)
{
char flags = (char)mod->isModuleDB;
return (flags & SECMOD_FLAG_MODULE_DB_POLICY_ONLY) ? PR_TRUE : PR_FALSE;
}
PRBool
secmod_IsInternalKeySlot(SECMODModule *mod)
{
char flags = (char)mod->internal;
return (flags & SECMOD_FLAG_INTERNAL_KEY_SLOT) ? PR_TRUE : PR_FALSE;
}
void
secmod_SetInternalKeySlotFlag(SECMODModule *mod, PRBool val)
{
char flags = (char)mod->internal;
if (val) {
flags |= SECMOD_FLAG_INTERNAL_KEY_SLOT;
} else {
flags &= ~SECMOD_FLAG_INTERNAL_KEY_SLOT;
}
mod->internal = flags;
}
/*
* copy desc and value into target. Target is known to be big enough to
* hold desc +2 +value, which is good because the result of this will be
* *desc"*value". We may, however, have to add some escapes for special
* characters imbedded into value (rare). This string potentially comes from
* a user, so we don't want the user overflowing the target buffer by using
* excessive escapes. To prevent this we count the escapes we need to add and
* try to expand the buffer with Realloc.
*/
static char *
secmod_doDescCopy(char *target, char **base, int *baseLen,
const char *desc, int descLen, char *value)
{
int diff, esc_len;
esc_len = NSSUTIL_EscapeSize(value, '\"') - 1;
diff = esc_len - strlen(value);
if (diff > 0) {
/* we need to escape... expand newSpecPtr as well to make sure
* we don't overflow it */
int offset = target - *base;
char *newPtr = PORT_Realloc(*base, *baseLen + diff);
if (!newPtr) {
return target; /* not enough space, just drop the whole copy */
}
*baseLen += diff;
target = newPtr + offset;
*base = newPtr;
value = NSSUTIL_Escape(value, '\"');
if (value == NULL) {
return target; /* couldn't escape value, just drop the copy */
}
}
PORT_Memcpy(target, desc, descLen);
target += descLen;
*target++ = '\"';
PORT_Memcpy(target, value, esc_len);
target += esc_len;
*target++ = '\"';
if (diff > 0) {
PORT_Free(value);
}
return target;
}
#define SECMOD_SPEC_COPY(new, start, end) \
if (end > start) { \
int _cnt = end - start; \
PORT_Memcpy(new, start, _cnt); \
new += _cnt; \
}
#define SECMOD_TOKEN_DESCRIPTION "tokenDescription="
#define SECMOD_SLOT_DESCRIPTION "slotDescription="
/*
* Find any tokens= values in the module spec.
* Always return a new spec which does not have any tokens= arguments.
* If tokens= arguments are found, Split the the various tokens defined into
* an array of child specs to return.
*
* Caller is responsible for freeing the child spec and the new token
* spec.
*/
char *
secmod_ParseModuleSpecForTokens(PRBool convert, PRBool isFIPS,
const char *moduleSpec, char ***children,
CK_SLOT_ID **ids)
{
int newSpecLen = PORT_Strlen(moduleSpec) + 2;
char *newSpec = PORT_Alloc(newSpecLen);
char *newSpecPtr = newSpec;
const char *modulePrev = moduleSpec;
char *target = NULL;
char *tmp = NULL;
char **childArray = NULL;
const char *tokenIndex;
CK_SLOT_ID *idArray = NULL;
int tokenCount = 0;
int i;
if (newSpec == NULL) {
return NULL;
}
*children = NULL;
if (ids) {
*ids = NULL;
}
moduleSpec = NSSUTIL_ArgStrip(moduleSpec);
SECMOD_SPEC_COPY(newSpecPtr, modulePrev, moduleSpec);
/* Notes on 'convert' and 'isFIPS' flags: The base parameters for opening
* a new softoken module takes the following parameters to name the
* various tokens:
*
* cryptoTokenDescription: name of the non-fips crypto token.
* cryptoSlotDescription: name of the non-fips crypto slot.
* dbTokenDescription: name of the non-fips db token.
* dbSlotDescription: name of the non-fips db slot.
* FIPSTokenDescription: name of the fips db/crypto token.
* FIPSSlotDescription: name of the fips db/crypto slot.
*
* if we are opening a new slot, we need to have the following
* parameters:
* tokenDescription: name of the token.
* slotDescription: name of the slot.
*
*
* The convert flag tells us to drop the unnecessary *TokenDescription
* and *SlotDescription arguments and convert the appropriate pair
* (either db or FIPS based on the isFIPS flag) to tokenDescription and
* slotDescription).
*/
/*
* walk down the list. if we find a tokens= argument, save it,
* otherise copy the argument.
*/
while (*moduleSpec) {
int next;
modulePrev = moduleSpec;
NSSUTIL_HANDLE_STRING_ARG(moduleSpec, target, "tokens=",
modulePrev = moduleSpec;
/* skip copying */)
NSSUTIL_HANDLE_STRING_ARG(
moduleSpec, tmp, "cryptoTokenDescription=",
if (convert) { modulePrev = moduleSpec; })
NSSUTIL_HANDLE_STRING_ARG(
moduleSpec, tmp, "cryptoSlotDescription=",
if (convert) { modulePrev = moduleSpec; })
NSSUTIL_HANDLE_STRING_ARG(
moduleSpec, tmp, "dbTokenDescription=",
if (convert) {
modulePrev = moduleSpec;
if (!isFIPS) {
newSpecPtr = secmod_doDescCopy(newSpecPtr,
&newSpec, &newSpecLen,
SECMOD_TOKEN_DESCRIPTION,
sizeof(SECMOD_TOKEN_DESCRIPTION) - 1,
tmp);
}
})
NSSUTIL_HANDLE_STRING_ARG(
moduleSpec, tmp, "dbSlotDescription=",
if (convert) {
modulePrev = moduleSpec; /* skip copying */
if (!isFIPS) {
newSpecPtr = secmod_doDescCopy(newSpecPtr,
&newSpec, &newSpecLen,
SECMOD_SLOT_DESCRIPTION,
sizeof(SECMOD_SLOT_DESCRIPTION) - 1,
tmp);
}
})
NSSUTIL_HANDLE_STRING_ARG(
moduleSpec, tmp, "FIPSTokenDescription=",
if (convert) {
modulePrev = moduleSpec; /* skip copying */
if (isFIPS) {
newSpecPtr = secmod_doDescCopy(newSpecPtr,
&newSpec, &newSpecLen,
SECMOD_TOKEN_DESCRIPTION,
sizeof(SECMOD_TOKEN_DESCRIPTION) - 1,
tmp);
}
})
NSSUTIL_HANDLE_STRING_ARG(
moduleSpec, tmp, "FIPSSlotDescription=",
if (convert) {
modulePrev = moduleSpec; /* skip copying */
if (isFIPS) {
newSpecPtr = secmod_doDescCopy(newSpecPtr,
&newSpec, &newSpecLen,
SECMOD_SLOT_DESCRIPTION,
sizeof(SECMOD_SLOT_DESCRIPTION) - 1,
tmp);
}
})
NSSUTIL_HANDLE_FINAL_ARG(moduleSpec)
SECMOD_SPEC_COPY(newSpecPtr, modulePrev, moduleSpec);
}
if (tmp) {
PORT_Free(tmp);
tmp = NULL;
}
*newSpecPtr = 0;
/* no target found, return the newSpec */
if (target == NULL) {
return newSpec;
}
/* now build the child array from target */
/*first count them */
for (tokenIndex = NSSUTIL_ArgStrip(target); *tokenIndex;
tokenIndex = NSSUTIL_ArgStrip(NSSUTIL_ArgSkipParameter(tokenIndex))) {
tokenCount++;
}
childArray = PORT_NewArray(char *, tokenCount + 1);
if (childArray == NULL) {
/* just return the spec as is then */
PORT_Free(target);
return newSpec;
}
if (ids) {
idArray = PORT_NewArray(CK_SLOT_ID, tokenCount + 1);
if (idArray == NULL) {
PORT_Free(childArray);
PORT_Free(target);
return newSpec;
}
}
/* now fill them in */
for (tokenIndex = NSSUTIL_ArgStrip(target), i = 0;
*tokenIndex && (i < tokenCount);
tokenIndex = NSSUTIL_ArgStrip(tokenIndex)) {
int next;
char *name = NSSUTIL_ArgGetLabel(tokenIndex, &next);
tokenIndex += next;
if (idArray) {
idArray[i] = NSSUTIL_ArgDecodeNumber(name);
}
PORT_Free(name); /* drop the explicit number */
/* if anything is left, copy the args to the child array */
if (!NSSUTIL_ArgIsBlank(*tokenIndex)) {
childArray[i++] = NSSUTIL_ArgFetchValue(tokenIndex, &next);
tokenIndex += next;
}
}
PORT_Free(target);
childArray[i] = 0;
if (idArray) {
idArray[i] = 0;
}
/* return it */
*children = childArray;
if (ids) {
*ids = idArray;
}
return newSpec;
}
/* get the database and flags from the spec */
static char *
secmod_getConfigDir(const char *spec, char **certPrefix, char **keyPrefix,
PRBool *readOnly)
{
char *config = NULL;
*certPrefix = NULL;
*keyPrefix = NULL;
*readOnly = NSSUTIL_ArgHasFlag("flags", "readOnly", spec);
if (NSSUTIL_ArgHasFlag("flags", "nocertdb", spec) ||
NSSUTIL_ArgHasFlag("flags", "nokeydb", spec)) {
return NULL;
}
spec = NSSUTIL_ArgStrip(spec);
while (*spec) {
int next;
NSSUTIL_HANDLE_STRING_ARG(spec, config, "configdir=", ;)
NSSUTIL_HANDLE_STRING_ARG(spec, *certPrefix, "certPrefix=", ;)
NSSUTIL_HANDLE_STRING_ARG(spec, *keyPrefix, "keyPrefix=", ;)
NSSUTIL_HANDLE_FINAL_ARG(spec)
}
return config;
}
struct SECMODConfigListStr {
char *config;
char *certPrefix;
char *keyPrefix;
PRBool isReadOnly;
};
/*
* return an array of already openned databases from a spec list.
*/
SECMODConfigList *
secmod_GetConfigList(PRBool isFIPS, char *spec, int *count)
{
char **children;
CK_SLOT_ID *ids;
char *strippedSpec;
int childCount;
SECMODConfigList *conflist = NULL;
int i;
strippedSpec = secmod_ParseModuleSpecForTokens(PR_TRUE, isFIPS,
spec, &children, &ids);
if (strippedSpec == NULL) {
return NULL;
}
for (childCount = 0; children && children[childCount]; childCount++)
;
*count = childCount + 1; /* include strippedSpec */
conflist = PORT_NewArray(SECMODConfigList, *count);
if (conflist == NULL) {
*count = 0;
goto loser;
}
conflist[0].config = secmod_getConfigDir(strippedSpec,
&conflist[0].certPrefix,
&conflist[0].keyPrefix,
&conflist[0].isReadOnly);
for (i = 0; i < childCount; i++) {
conflist[i + 1].config = secmod_getConfigDir(children[i],
&conflist[i + 1].certPrefix,
&conflist[i + 1].keyPrefix,
&conflist[i + 1].isReadOnly);
}
loser:
secmod_FreeChildren(children, ids);
PORT_Free(strippedSpec);
return conflist;
}
/*
* determine if we are trying to open an old dbm database. For this test
* RDB databases should return PR_FALSE.
*/
static PRBool
secmod_configIsDBM(char *configDir)
{
char *env;
/* explicit dbm open */
if (strncmp(configDir, "dbm:", 4) == 0) {
return PR_TRUE;
}
/* explicit open of a non-dbm database */
if ((strncmp(configDir, "sql:", 4) == 0) ||
(strncmp(configDir, "rdb:", 4) == 0) ||
(strncmp(configDir, "extern:", 7) == 0)) {
return PR_FALSE;
}
env = PR_GetEnvSecure("NSS_DEFAULT_DB_TYPE");
/* implicit dbm open */
if ((env == NULL) || (strcmp(env, "dbm") == 0)) {
return PR_TRUE;
}
/* implicit non-dbm open */
return PR_FALSE;
}
/*
* match two prefixes. prefix may be NULL. NULL patches '\0'
*/
static PRBool
secmod_matchPrefix(char *prefix1, char *prefix2)
{
if ((prefix1 == NULL) || (*prefix1 == 0)) {
if ((prefix2 == NULL) || (*prefix2 == 0)) {
return PR_TRUE;
}
return PR_FALSE;
}
if (strcmp(prefix1, prefix2) == 0) {
return PR_TRUE;
}
return PR_FALSE;
}
/* do two config paramters match? Not all callers are compariing
* SECMODConfigLists directly, so this function breaks them out to their
* components. */
static PRBool
secmod_matchConfig(char *configDir1, char *configDir2,
char *certPrefix1, char *certPrefix2,
char *keyPrefix1, char *keyPrefix2,
PRBool isReadOnly1, PRBool isReadOnly2)
{
/* TODO: Document the answer to the question:
* "Why not allow them to match if they are both NULL?"
*/
if ((configDir1 == NULL) || (configDir2 == NULL)) {
return PR_FALSE;
}
if (strcmp(configDir1, configDir2) != 0) {
return PR_FALSE;
}
if (!secmod_matchPrefix(certPrefix1, certPrefix2)) {
return PR_FALSE;
}
if (!secmod_matchPrefix(keyPrefix1, keyPrefix2)) {
return PR_FALSE;
}
/* these last test -- if we just need the DB open read only,
* than any open will suffice, but if we requested it read/write
* and it's only open read only, we need to open it again */
if (isReadOnly1) {
return PR_TRUE;
}
if (isReadOnly2) { /* isReadonly1 == PR_FALSE */
return PR_FALSE;
}
return PR_TRUE;
}
/*
* return true if we are requesting a database that is already openned.
*/
PRBool
secmod_MatchConfigList(const char *spec, SECMODConfigList *conflist, int count)
{
char *config;
char *certPrefix;
char *keyPrefix;
PRBool isReadOnly;
PRBool ret = PR_FALSE;
int i;
config = secmod_getConfigDir(spec, &certPrefix, &keyPrefix, &isReadOnly);
if (!config) {
goto done;
}
/* NOTE: we dbm isn't multiple open safe. If we open the same database
* twice from two different locations, then we can corrupt our database
* (the cache will be inconsistent). Protect against this by claiming
* for comparison only that we are always openning dbm databases read only.
*/
if (secmod_configIsDBM(config)) {
isReadOnly = 1;
}
for (i = 0; i < count; i++) {
if (secmod_matchConfig(config, conflist[i].config, certPrefix,
conflist[i].certPrefix, keyPrefix,
conflist[i].keyPrefix, isReadOnly,
conflist[i].isReadOnly)) {
ret = PR_TRUE;
goto done;
}
}
ret = PR_FALSE;
done:
PORT_Free(config);
PORT_Free(certPrefix);
PORT_Free(keyPrefix);
return ret;
}
/*
* Find the slot id from the module spec. If the slot is the database slot, we
* can get the slot id from the default database slot.
*/
CK_SLOT_ID
secmod_GetSlotIDFromModuleSpec(const char *moduleSpec, SECMODModule *module)
{
char *tmp_spec = NULL;
char **children, **thisChild;
CK_SLOT_ID *ids, *thisID, slotID = -1;
char *inConfig = NULL, *thisConfig = NULL;
char *inCertPrefix = NULL, *thisCertPrefix = NULL;
char *inKeyPrefix = NULL, *thisKeyPrefix = NULL;
PRBool inReadOnly, thisReadOnly;
inConfig = secmod_getConfigDir(moduleSpec, &inCertPrefix, &inKeyPrefix,
&inReadOnly);
if (!inConfig) {
goto done;
}
if (secmod_configIsDBM(inConfig)) {
inReadOnly = 1;
}
tmp_spec = secmod_ParseModuleSpecForTokens(PR_TRUE, module->isFIPS,
module->libraryParams, &children, &ids);
if (tmp_spec == NULL) {
goto done;
}
/* first check to see if the parent is the database */
thisConfig = secmod_getConfigDir(tmp_spec, &thisCertPrefix, &thisKeyPrefix,
&thisReadOnly);
if (!thisConfig) {
goto done;
}
if (secmod_matchConfig(inConfig, thisConfig, inCertPrefix, thisCertPrefix,
inKeyPrefix, thisKeyPrefix, inReadOnly, thisReadOnly)) {
/* yup it's the default key slot, get the id for it */
PK11SlotInfo *slot = PK11_GetInternalKeySlot();
if (slot) {
slotID = slot->slotID;
PK11_FreeSlot(slot);
}
goto done;
}
/* find id of the token */
for (thisChild = children, thisID = ids; thisChild && *thisChild; thisChild++, thisID++) {
PORT_Free(thisConfig);
PORT_Free(thisCertPrefix);
PORT_Free(thisKeyPrefix);
thisConfig = secmod_getConfigDir(*thisChild, &thisCertPrefix,
&thisKeyPrefix, &thisReadOnly);
if (thisConfig == NULL) {
continue;
}
if (secmod_matchConfig(inConfig, thisConfig, inCertPrefix, thisCertPrefix,
inKeyPrefix, thisKeyPrefix, inReadOnly, thisReadOnly)) {
slotID = *thisID;
break;
}
}
done:
PORT_Free(inConfig);
PORT_Free(inCertPrefix);
PORT_Free(inKeyPrefix);
PORT_Free(thisConfig);
PORT_Free(thisCertPrefix);
PORT_Free(thisKeyPrefix);
if (tmp_spec) {
secmod_FreeChildren(children, ids);
PORT_Free(tmp_spec);
}
return slotID;
}
void
secmod_FreeConfigList(SECMODConfigList *conflist, int count)
{
int i;
for (i = 0; i < count; i++) {
PORT_Free(conflist[i].config);
PORT_Free(conflist[i].certPrefix);
PORT_Free(conflist[i].keyPrefix);
}
PORT_Free(conflist);
}
void
secmod_FreeChildren(char **children, CK_SLOT_ID *ids)
{
char **thisChild;
if (!children) {
return;
}
for (thisChild = children; thisChild && *thisChild; thisChild++) {
PORT_Free(*thisChild);
}
PORT_Free(children);
if (ids) {
PORT_Free(ids);
}
return;
}
/*
* caclulate the length of each child record:
* " 0x{id}=<{escaped_child}>"
*/
static int
secmod_getChildLength(char *child, CK_SLOT_ID id)
{
int length = NSSUTIL_DoubleEscapeSize(child, '>', ']');
if (id == 0) {
length++;
}
while (id) {
length++;
id = id >> 4;
}
length += 6; /* {sp}0x[id]=<{child}> */
return length;
}
/*
* Build a child record:
* " 0x{id}=<{escaped_child}>"
*/
static SECStatus