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openldap/openldap-nss-multiple-tls-contexts.patch
Jan Vcelak 50ed49760b fix: less influence between individual TLS contexts 
Resolves: #795763 (and possibly others)
2012-06-27 14:40:59 +02:00

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MozNSS: TLS fixes which should resolve problems with applications using multiple TLS contexts
- context specific token description for certdb
- store certificate object instead of nickname in in ctx
- lock whole init and clenaup process
- do not authenticate to a slot manually
- do not retry when reading the pin from file
Author: Jan Vcelak <jvcelak@redhat.com>
Upstream ITS: #7312 #7313 #7314 #7315 #7316
Upstream commit: 87132b8 d07779e 3531c34 a171237 2db5195
Resolves: #795763 (and possibly other)
diff --git a/libraries/libldap/tls_m.c b/libraries/libldap/tls_m.c
index 2e755eb..4b5727b 100644
--- a/libraries/libldap/tls_m.c
+++ b/libraries/libldap/tls_m.c
@@ -81,16 +81,18 @@
typedef struct tlsm_ctx {
PRFileDesc *tc_model;
int tc_refcnt;
+ int tc_unique; /* unique number associated with this ctx */
PRBool tc_verify_cert;
CERTCertDBHandle *tc_certdb;
- char *tc_certname;
+ PK11SlotInfo *tc_certdb_slot;
+ CERTCertificate *tc_certificate;
+ SECKEYPrivateKey *tc_private_key;
char *tc_pin_file;
struct ldaptls *tc_config;
int tc_is_server;
int tc_require_cert;
PRCallOnceType tc_callonce;
PRBool tc_using_pem;
- char *tc_slotname; /* if using pem */
#ifdef HAVE_NSS_INITCONTEXT
NSSInitContext *tc_initctx; /* the NSS context */
#endif
@@ -104,10 +106,16 @@ typedef struct tlsm_ctx {
typedef PRFileDesc tlsm_session;
+static int tlsm_ctx_count;
+#define TLSM_CERTDB_DESC_FMT "ldap(%d)"
+
static PRDescIdentity tlsm_layer_id;
static const PRIOMethods tlsm_PR_methods;
+#define CERTDB_NONE NULL
+#define PREFIX_NONE NULL
+
#define PEM_LIBRARY "nsspem"
#define PEM_MODULE "PEM"
/* hash files for use with cacertdir have this file name suffix */
@@ -117,13 +125,11 @@ static const PRIOMethods tlsm_PR_methods;
static SECMODModule *pem_module;
#define DEFAULT_TOKEN_NAME "default"
-/* sprintf format used to create token name */
-#define TLSM_PEM_TOKEN_FMT "PEM Token #%ld"
+#define TLSM_PEM_SLOT_CACERTS "PEM Token #0"
+#define TLSM_PEM_SLOT_CERTS "PEM Token #1"
-static int tlsm_slot_count;
-
-#define PK11_SETATTRS(x,id,v,l) (x)->type = (id); \
- (x)->pValue=(v); (x)->ulValueLen = (l);
+#define PK11_SETATTRS(x,id,v,l) (x).type = (id); \
+ (x).pValue=(v); (x).ulValueLen = (l);
/* forward declaration */
static int tlsm_init( void );
@@ -134,6 +140,7 @@ static int tlsm_init( void );
tlsm_thr_init in a non-threaded context - so we have
to wrap the mutex creation in a prcallonce
*/
+static ldap_pvt_thread_mutex_t tlsm_ctx_count_mutex;
static ldap_pvt_thread_mutex_t tlsm_init_mutex;
static ldap_pvt_thread_mutex_t tlsm_pem_mutex;
static PRCallOnceType tlsm_init_mutex_callonce = {0,0};
@@ -141,6 +148,12 @@ static PRCallOnceType tlsm_init_mutex_callonce = {0,0};
static PRStatus PR_CALLBACK
tlsm_thr_init_callonce( void )
{
+ if ( ldap_pvt_thread_mutex_init( &tlsm_ctx_count_mutex ) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "TLS: could not create mutex for context counter: %d\n", errno, 0, 0 );
+ return PR_FAILURE;
+ }
+
if ( ldap_pvt_thread_mutex_init( &tlsm_init_mutex ) ) {
Debug( LDAP_DEBUG_ANY,
"TLS: could not create mutex for moznss initialization: %d\n", errno, 0, 0 );
@@ -890,6 +903,8 @@ tlsm_get_pin(PK11SlotInfo *slot, PRBool retry, tlsm_ctx *ctx)
*/
if ( ctx->tc_pin_file ) {
pwdstr = tlsm_get_pin_from_file( token_name, ctx );
+ if (retry && pwdstr != NULL)
+ return NULL;
}
#endif /* RETRIEVE_PASSWORD_FROM_FILE */
#ifdef READ_PASSWORD_FROM_STDIN
@@ -932,6 +947,15 @@ tlsm_pin_prompt(PK11SlotInfo *slot, PRBool retry, void *arg)
return tlsm_get_pin( slot, retry, ctx );
}
+static char *
+tlsm_ctx_subject_name(tlsm_ctx *ctx)
+{
+ if (!ctx || !ctx->tc_certificate)
+ return "(unknown)";
+
+ return ctx->tc_certificate->subjectName;
+}
+
static SECStatus
tlsm_get_basic_constraint_extension( CERTCertificate *cert,
CERTBasicConstraints *cbcval )
@@ -1088,25 +1112,6 @@ tlsm_auth_cert_handler(void *arg, PRFileDesc *fd,
return ret;
}
-static int
-tlsm_authenticate_to_slot( tlsm_ctx *ctx, PK11SlotInfo *slot )
-{
- int rc = -1;
-
- if ( SECSuccess != PK11_Authenticate( slot, PR_FALSE, ctx ) ) {
- char *token_name = PK11_GetTokenName( slot );
- PRErrorCode errcode = PR_GetError();
- Debug( LDAP_DEBUG_ANY,
- "TLS: could not authenticate to the security token %s - error %d:%s.\n",
- token_name ? token_name : DEFAULT_TOKEN_NAME, errcode,
- PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
- } else {
- rc = 0; /* success */
- }
-
- return rc;
-}
-
static SECStatus
tlsm_nss_shutdown_cb( void *appData, void *nssData )
{
@@ -1196,22 +1201,18 @@ tlsm_free_pem_objs( tlsm_ctx *ctx )
}
static int
-tlsm_add_cert_from_file( tlsm_ctx *ctx, const char *filename, PRBool isca, PRBool istrusted )
+tlsm_add_cert_from_file( tlsm_ctx *ctx, const char *filename, PRBool isca )
{
- CK_SLOT_ID slotID;
- PK11SlotInfo *slot = NULL;
- PK11GenericObject *rv;
- CK_ATTRIBUTE *attrs;
- CK_ATTRIBUTE theTemplate[20];
+ PK11SlotInfo *slot;
+ PK11GenericObject *cert;
+ CK_ATTRIBUTE attrs[4];
CK_BBOOL cktrue = CK_TRUE;
CK_BBOOL ckfalse = CK_FALSE;
CK_OBJECT_CLASS objClass = CKO_CERTIFICATE;
- char tmpslotname[64];
- char *slotname = NULL;
- const char *ptr = NULL;
- char sep = PR_GetDirectorySeparator();
+ char *slotname;
PRFileInfo fi;
PRStatus status;
+ SECItem certDER = { 0, NULL, 0 };
memset( &fi, 0, sizeof(fi) );
status = PR_GetFileInfo( filename, &fi );
@@ -1232,87 +1233,96 @@ tlsm_add_cert_from_file( tlsm_ctx *ctx, const char *filename, PRBool isca, PRBoo
return -1;
}
- attrs = theTemplate;
+ slotname = isca ? TLSM_PEM_SLOT_CACERTS : TLSM_PEM_SLOT_CERTS;
+ slot = PK11_FindSlotByName( slotname );
- if ( isca ) {
- slotID = 0; /* CA and trust objects use slot 0 */
- PR_snprintf( tmpslotname, sizeof(tmpslotname), TLSM_PEM_TOKEN_FMT, slotID );
- slotname = tmpslotname;
- istrusted = PR_TRUE;
- } else {
- if ( ctx->tc_slotname == NULL ) { /* need new slot */
- if ( istrusted ) {
- slotID = 0;
- } else {
- slotID = ++tlsm_slot_count;
- }
- ctx->tc_slotname = PR_smprintf( TLSM_PEM_TOKEN_FMT, slotID );
- }
- slotname = ctx->tc_slotname;
-
- if ( ( ptr = PL_strrchr( filename, sep ) ) ) {
- PL_strfree( ctx->tc_certname );
- ++ptr;
- if ( istrusted ) {
- /* pemnss conflates trusted certs with CA certs - since there can
- be more than one CA cert in a file (e.g. ca-bundle.crt) pemnss
- numbers each trusted cert - in the case of a server cert, there will be
- only one, so it will be number 0 */
- ctx->tc_certname = PR_smprintf( "%s:%s - 0", slotname, ptr );
- } else {
- ctx->tc_certname = PR_smprintf( "%s:%s", slotname, ptr );
- }
- }
+ if ( !slot ) {
+ PRErrorCode errcode = PR_GetError();
+ Debug( LDAP_DEBUG_ANY,
+ "TLS: could not find the slot for the certificate '%s' - error %d:%s.\n",
+ filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ return -1;
}
- slot = PK11_FindSlotByName( slotname );
+ PK11_SETATTRS( attrs[0], CKA_CLASS, &objClass, sizeof(objClass) );
+ PK11_SETATTRS( attrs[1], CKA_TOKEN, &cktrue, sizeof(CK_BBOOL) );
+ PK11_SETATTRS( attrs[2], CKA_LABEL, (unsigned char *)filename, strlen(filename)+1 );
+ PK11_SETATTRS( attrs[3], CKA_TRUST, isca ? &cktrue : &ckfalse, sizeof(CK_BBOOL) );
- if ( !slot ) {
+ cert = PK11_CreateGenericObject( slot, attrs, 4, PR_FALSE /* isPerm */ );
+
+ if ( !cert ) {
PRErrorCode errcode = PR_GetError();
Debug( LDAP_DEBUG_ANY,
- "TLS: could not find the slot for certificate %s - error %d:%s.\n",
- ctx->tc_certname, errcode,
- PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ "TLS: could not add the certificate '%s' - error %d:%s.\n",
+ filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ PK11_FreeSlot( slot );
return -1;
}
- PK11_SETATTRS( attrs, CKA_CLASS, &objClass, sizeof(objClass) ); attrs++;
- PK11_SETATTRS( attrs, CKA_TOKEN, &cktrue, sizeof(CK_BBOOL) ); attrs++;
- PK11_SETATTRS( attrs, CKA_LABEL, (unsigned char *)filename, strlen(filename)+1 ); attrs++;
- if ( istrusted ) {
- PK11_SETATTRS( attrs, CKA_TRUST, &cktrue, sizeof(CK_BBOOL) ); attrs++;
- } else {
- PK11_SETATTRS( attrs, CKA_TRUST, &ckfalse, sizeof(CK_BBOOL) ); attrs++;
+ /* if not CA, we store the certificate in ctx->tc_certificate */
+ if ( !isca ) {
+ if ( PK11_ReadRawAttribute( PK11_TypeGeneric, cert, CKA_VALUE, &certDER ) != SECSuccess ) {
+ PRErrorCode errcode = PR_GetError();
+ Debug( LDAP_DEBUG_ANY,
+ "TLS: could not get DER of the '%s' certificate - error %d:%s.\n",
+ filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ PK11_DestroyGenericObject( cert );
+ PK11_FreeSlot( slot );
+ return -1;
+ }
+
+ ctx->tc_certificate = PK11_FindCertFromDERCertItem( slot, &certDER, NULL );
+ SECITEM_FreeItem( &certDER, PR_FALSE );
+
+ if ( !ctx->tc_certificate ) {
+ PRErrorCode errcode = PR_GetError();
+ Debug( LDAP_DEBUG_ANY,
+ "TLS: could not get certificate '%s' using DER - error %d:%s.\n",
+ filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ PK11_DestroyGenericObject( cert );
+ PK11_FreeSlot( slot );
+ return -1;
+ }
}
- /* This loads the certificate in our PEM module into the appropriate
- * slot.
- */
- rv = PK11_CreateGenericObject( slot, theTemplate, 4, PR_FALSE /* isPerm */ );
+
+ tlsm_add_pem_obj( ctx, cert );
PK11_FreeSlot( slot );
- if ( !rv ) {
+ return 0;
+}
+
+static int
+tlsm_ctx_load_private_key(tlsm_ctx *ctx)
+{
+ if (!ctx->tc_certificate)
+ return -1;
+
+ if (ctx->tc_private_key)
+ return 0;
+
+ void *pin_arg = SSL_RevealPinArg(ctx->tc_model);
+
+ ctx->tc_private_key = PK11_FindKeyByAnyCert(ctx->tc_certificate, pin_arg);
+ if (!ctx->tc_private_key) {
PRErrorCode errcode = PR_GetError();
- Debug( LDAP_DEBUG_ANY,
- "TLS: could not add the certificate %s - error %d:%s.\n",
- ctx->tc_certname, errcode,
- PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ Debug(LDAP_DEBUG_ANY,
+ "TLS: cannot find private key for certificate '%s' (error %d: %s)",
+ tlsm_ctx_subject_name(ctx), errcode,
+ PR_ErrorToString(errcode, PR_LANGUAGE_I_DEFAULT));
return -1;
}
- tlsm_add_pem_obj( ctx, rv );
-
return 0;
}
static int
tlsm_add_key_from_file( tlsm_ctx *ctx, const char *filename )
{
- CK_SLOT_ID slotID;
PK11SlotInfo * slot = NULL;
- PK11GenericObject *rv;
- CK_ATTRIBUTE *attrs;
- CK_ATTRIBUTE theTemplate[20];
+ PK11GenericObject *key;
+ CK_ATTRIBUTE attrs[3];
CK_BBOOL cktrue = CK_TRUE;
CK_OBJECT_CLASS objClass = CKO_PRIVATE_KEY;
int retcode = 0;
@@ -1338,48 +1348,40 @@ tlsm_add_key_from_file( tlsm_ctx *ctx, const char *filename )
return -1;
}
- attrs = theTemplate;
-
- if ( ctx->tc_slotname == NULL ) { /* need new slot */
- slotID = ++tlsm_slot_count;
- ctx->tc_slotname = PR_smprintf( TLSM_PEM_TOKEN_FMT, slotID );
- }
- slot = PK11_FindSlotByName( ctx->tc_slotname );
+ slot = PK11_FindSlotByName( TLSM_PEM_SLOT_CERTS );
if ( !slot ) {
PRErrorCode errcode = PR_GetError();
Debug( LDAP_DEBUG_ANY,
- "TLS: could not find the slot %s for the private key - error %d:%s.\n",
- ctx->tc_slotname, errcode,
- PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ "TLS: could not find the slot for the private key '%s' - error %d:%s.\n",
+ filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
return -1;
}
- PK11_SETATTRS( attrs, CKA_CLASS, &objClass, sizeof(objClass) ); attrs++;
- PK11_SETATTRS( attrs, CKA_TOKEN, &cktrue, sizeof(CK_BBOOL) ); attrs++;
- PK11_SETATTRS( attrs, CKA_LABEL, (unsigned char *)filename, strlen(filename)+1 ); attrs++;
- rv = PK11_CreateGenericObject( slot, theTemplate, 3, PR_FALSE /* isPerm */ );
+ PK11_SETATTRS( attrs[0], CKA_CLASS, &objClass, sizeof(objClass) );
+ PK11_SETATTRS( attrs[1], CKA_TOKEN, &cktrue, sizeof(CK_BBOOL) );
+ PK11_SETATTRS( attrs[2], CKA_LABEL, (unsigned char *)filename, strlen(filename)+1 );
+
+ key = PK11_CreateGenericObject( slot, attrs, 3, PR_FALSE /* isPerm */ );
- if ( !rv ) {
+ if ( !key ) {
PRErrorCode errcode = PR_GetError();
Debug( LDAP_DEBUG_ANY,
- "TLS: could not add the certificate %s - error %d:%s.\n",
- ctx->tc_certname, errcode,
- PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ "TLS: could not add the private key '%s' - error %d:%s.\n",
+ filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
retcode = -1;
} else {
+ tlsm_add_pem_obj( ctx, key );
+ retcode = 0;
+
/* When adding an encrypted key the PKCS#11 will be set as removed */
/* This will force the token to be seen as re-inserted */
SECMOD_WaitForAnyTokenEvent( pem_module, 0, 0 );
PK11_IsPresent( slot );
- retcode = 0;
}
PK11_FreeSlot( slot );
- if ( !retcode ) {
- tlsm_add_pem_obj( ctx, rv );
- }
return retcode;
}
@@ -1396,7 +1398,7 @@ tlsm_init_ca_certs( tlsm_ctx *ctx, const char *cacertfile, const char *cacertdir
}
if ( cacertfile ) {
- int rc = tlsm_add_cert_from_file( ctx, cacertfile, isca, PR_TRUE );
+ int rc = tlsm_add_cert_from_file( ctx, cacertfile, isca );
if ( rc ) {
errcode = PR_GetError();
Debug( LDAP_DEBUG_ANY,
@@ -1470,7 +1472,7 @@ tlsm_init_ca_certs( tlsm_ctx *ctx, const char *cacertfile, const char *cacertdir
continue;
}
fullpath = PR_smprintf( "%s/%s", cacertdir, entry->name );
- if ( !tlsm_add_cert_from_file( ctx, fullpath, isca, PR_TRUE ) ) {
+ if ( !tlsm_add_cert_from_file( ctx, fullpath, isca ) ) {
Debug( LDAP_DEBUG_TRACE,
"TLS: loaded CA certificate file %s from CA certificate directory %s.\n",
fullpath, cacertdir, 0 );
@@ -1534,6 +1536,45 @@ tlsm_get_certdb_prefix( const char *certdir, char **realcertdir, char **prefix )
}
/*
+ * Currently mutiple MozNSS contexts share one certificate storage. When the
+ * certdb is being opened, only new certificates are added to the storage.
+ * When different databases are used, conflicting nicknames make the
+ * certificate lookup by the nickname impossible. In addition a token
+ * description might be prepended in certain conditions.
+ *
+ * In order to make the certificate lookup by nickname possible, we explicitly
+ * open each database using SECMOD_OpenUserDB and assign it the token
+ * description. The token description is generated using ctx->tc_unique value,
+ * which is unique for each context.
+ */
+static PK11SlotInfo *
+tlsm_init_open_certdb(tlsm_ctx *ctx, const char *dbdir, const char *prefix)
+{
+ PK11SlotInfo *slot = NULL;
+ char *token_desc = NULL;
+ char *config = NULL;
+
+ token_desc = PR_smprintf(TLSM_CERTDB_DESC_FMT, ctx->tc_unique);
+ config = PR_smprintf("configDir='%s' tokenDescription='%s' certPrefix='%s' keyPrefix='%s' flags=readOnly",
+ dbdir, token_desc, prefix, prefix);
+ Debug(LDAP_DEBUG_TRACE, "TLS: certdb config: %s\n", config, 0, 0);
+
+ slot = SECMOD_OpenUserDB(config);
+ if (!slot) {
+ PRErrorCode errcode = PR_GetError();
+ Debug(LDAP_DEBUG_TRACE, "TLS: cannot open certdb '%s', error %d:%s\n", dbdir, errcode,
+ PR_ErrorToString(errcode, PR_LANGUAGE_I_DEFAULT));
+ }
+
+ if (token_desc)
+ PR_smprintf_free(token_desc);
+ if (config)
+ PR_smprintf_free(config);
+
+ return slot;
+}
+
+/*
* This is the part of the init we defer until we get the
* actual security configuration information. This is
* only called once, protected by a PRCallOnce
@@ -1553,6 +1594,7 @@ tlsm_deferred_init( void *arg )
#ifdef HAVE_NSS_INITCONTEXT
NSSInitParameters initParams;
NSSInitContext *initctx = NULL;
+ PK11SlotInfo *certdb_slot = NULL;
#endif
SECStatus rc;
int done = 0;
@@ -1613,28 +1655,37 @@ tlsm_deferred_init( void *arg )
}
tlsm_get_certdb_prefix( securitydir, &realcertdir, &prefix );
- LDAP_MUTEX_LOCK( &tlsm_init_mutex );
+ /* initialize only moddb; certdb will be initialized explicitly */
#ifdef HAVE_NSS_INITCONTEXT
#ifdef INITCONTEXT_HACK
if ( !NSS_IsInitialized() && ctx->tc_is_server ) {
rc = NSS_Initialize( realcertdir, prefix, prefix, SECMOD_DB, NSS_INIT_READONLY );
} else {
initctx = NSS_InitContext( realcertdir, prefix, prefix, SECMOD_DB,
- &initParams, NSS_INIT_READONLY );
- rc = (initctx == NULL) ? SECFailure : SECSuccess;
+ &initParams, NSS_INIT_READONLY|NSS_INIT_NOCERTDB );
}
#else
initctx = NSS_InitContext( realcertdir, prefix, prefix, SECMOD_DB,
- &initParams, NSS_INIT_READONLY );
- rc = (initctx == NULL) ? SECFailure : SECSuccess;
+ &initParams, NSS_INIT_READONLY|NSS_INIT_NOCERTDB );
#endif
+ rc = SECFailure;
+
+ if (initctx != NULL) {
+ certdb_slot = tlsm_init_open_certdb(ctx, realcertdir, prefix);
+ if (certdb_slot) {
+ rc = SECSuccess;
+ ctx->tc_initctx = initctx;
+ ctx->tc_certdb_slot = certdb_slot;
+ } else {
+ NSS_ShutdownContext(initctx);
+ initctx = NULL;
+ }
+ }
#else
rc = NSS_Initialize( realcertdir, prefix, prefix, SECMOD_DB, NSS_INIT_READONLY );
#endif
- LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
-
if ( rc != SECSuccess ) {
errcode = PORT_GetError();
if ( securitydirs[ii] != lt->lt_cacertdir) {
@@ -1658,26 +1709,29 @@ tlsm_deferred_init( void *arg )
}
if ( errcode ) { /* no moznss db found, or not using moznss db */
- LDAP_MUTEX_LOCK( &tlsm_init_mutex );
#ifdef HAVE_NSS_INITCONTEXT
int flags = NSS_INIT_READONLY|NSS_INIT_NOCERTDB|NSS_INIT_NOMODDB;
#ifdef INITCONTEXT_HACK
if ( !NSS_IsInitialized() && ctx->tc_is_server ) {
rc = NSS_NoDB_Init( NULL );
} else {
- initctx = NSS_InitContext( "", "", "", SECMOD_DB,
+ initctx = NSS_InitContext( CERTDB_NONE, PREFIX_NONE, PREFIX_NONE, SECMOD_DB,
&initParams, flags );
rc = (initctx == NULL) ? SECFailure : SECSuccess;
}
#else
- initctx = NSS_InitContext( "", "", "", SECMOD_DB,
+ initctx = NSS_InitContext( CERTDB_NONE, PREFIX_NONE, PREFIX_NONE, SECMOD_DB,
&initParams, flags );
- rc = (initctx == NULL) ? SECFailure : SECSuccess;
+ if (initctx) {
+ ctx->tc_initctx = initctx;
+ rc = SECSuccess;
+ } else {
+ rc = SECFailure;
+ }
#endif
#else
rc = NSS_NoDB_Init( NULL );
#endif
- LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
if ( rc != SECSuccess ) {
errcode = PORT_GetError();
Debug( LDAP_DEBUG_ANY,
@@ -1685,18 +1739,11 @@ tlsm_deferred_init( void *arg )
errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
return -1;
}
-
-#ifdef HAVE_NSS_INITCONTEXT
- ctx->tc_initctx = initctx;
-#endif
-
}
if ( errcode || lt->lt_cacertfile ) {
/* initialize the PEM module */
- LDAP_MUTEX_LOCK( &tlsm_init_mutex );
if ( tlsm_init_pem_module() ) {
- LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
int pem_errcode = PORT_GetError();
Debug( LDAP_DEBUG_ANY,
"TLS: could not initialize moznss PEM module - error %d:%s.\n",
@@ -1708,7 +1755,6 @@ tlsm_deferred_init( void *arg )
} else if ( !errcode ) {
tlsm_init_ca_certs( ctx, lt->lt_cacertfile, NULL );
}
- LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
}
if ( errcode ) {
@@ -1734,12 +1780,6 @@ tlsm_deferred_init( void *arg )
ctx->tc_using_pem = PR_TRUE;
}
-#ifdef HAVE_NSS_INITCONTEXT
- if ( !ctx->tc_initctx ) {
- ctx->tc_initctx = initctx;
- }
-#endif
-
NSS_SetDomesticPolicy();
PK11_SetPasswordFunc( tlsm_pin_prompt );
@@ -1754,10 +1794,8 @@ tlsm_deferred_init( void *arg )
}
if ( ctx->tc_is_server ) {
- LDAP_MUTEX_LOCK( &tlsm_init_mutex );
/* 0 means use the defaults here */
SSL_ConfigServerSessionIDCache( 0, 0, 0, NULL );
- LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
}
#ifndef HAVE_NSS_INITCONTEXT
@@ -1767,137 +1805,34 @@ tlsm_deferred_init( void *arg )
return 0;
}
-static int
-tlsm_authenticate( tlsm_ctx *ctx, const char *certname, const char *pininfo )
-{
- const char *colon = NULL;
- char *token_name = NULL;
- PK11SlotInfo *slot = NULL;
- int rc = -1;
-
- if ( !certname || !*certname ) {
- return 0;
- }
-
- if ( ( colon = PL_strchr( certname, ':' ) ) ) {
- token_name = PL_strndup( certname, colon-certname );
- }
-
- if ( token_name ) {
- slot = PK11_FindSlotByName( token_name );
- } else {
- slot = PK11_GetInternalKeySlot();
- }
-
- if ( !slot ) {
- PRErrorCode errcode = PR_GetError();
- Debug( LDAP_DEBUG_ANY,
- "TLS: could not find the slot for security token %s - error %d:%s.\n",
- token_name ? token_name : DEFAULT_TOKEN_NAME, errcode,
- PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
- goto done;
- }
-
- rc = tlsm_authenticate_to_slot( ctx, slot );
-
-done:
- PL_strfree( token_name );
- if ( slot ) {
- PK11_FreeSlot( slot );
- }
-
- return rc;
-}
-
/*
* Find and verify the certificate.
- * Either fd is given, in which case the cert will be taken from it via SSL_PeerCertificate
- * or certname is given, and it will be searched for by name
+ * The key is loaded and stored in ctx->tc_private_key
*/
static int
-tlsm_find_and_verify_cert_key(tlsm_ctx *ctx, PRFileDesc *fd, const char *certname, int isServer, CERTCertificate **pRetCert, SECKEYPrivateKey **pRetKey)
+tlsm_find_and_verify_cert_key(tlsm_ctx *ctx)
{
- CERTCertificate *cert = NULL;
- int rc = -1;
- void *pin_arg = NULL;
- SECKEYPrivateKey *key = NULL;
+ SECCertificateUsage certUsage;
+ PRBool checkSig;
+ SECStatus status;
+ int errorToIgnore;
+ void *pin_arg;
- pin_arg = SSL_RevealPinArg( fd );
- if ( certname ) {
- cert = PK11_FindCertFromNickname( certname, pin_arg );
- if ( !cert ) {
- PRErrorCode errcode = PR_GetError();
- Debug( LDAP_DEBUG_ANY,
- "TLS: error: the certificate %s could not be found in the database - error %d:%s\n",
- certname, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
- return -1;
- }
- } else {
- /* we are verifying the peer cert
- we also need to swap the isServer meaning */
- cert = SSL_PeerCertificate( fd );
- if ( !cert ) {
- PRErrorCode errcode = PR_GetError();
- Debug( LDAP_DEBUG_ANY,
- "TLS: error: could not get the certificate from the peer connection - error %d:%s\n",
- errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), NULL );
- return -1;
- }
- isServer = !isServer; /* verify the peer's cert instead */
- }
-
- if ( ctx->tc_slotname ) {
- PK11SlotInfo *slot = PK11_FindSlotByName( ctx->tc_slotname );
- key = PK11_FindPrivateKeyFromCert( slot, cert, NULL );
- PK11_FreeSlot( slot );
- } else {
- key = PK11_FindKeyByAnyCert( cert, pin_arg );
- }
-
- if (key) {
- SECCertificateUsage certUsage;
- PRBool checkSig = PR_TRUE;
- SECStatus status;
- /* may not have a CA cert - ok - ignore SEC_ERROR_UNKNOWN_ISSUER */
- int errorToIgnore = SEC_ERROR_UNKNOWN_ISSUER;
+ if (tlsm_ctx_load_private_key(ctx))
+ return -1;
- if ( pRetKey ) {
- *pRetKey = key; /* caller will deal with this */
- } else {
- SECKEY_DestroyPrivateKey( key );
- }
- if ( isServer ) {
- certUsage = certificateUsageSSLServer;
- } else {
- certUsage = certificateUsageSSLClient;
- }
- if ( ctx->tc_verify_cert ) {
- checkSig = PR_TRUE;
- } else {
- checkSig = PR_FALSE;
- }
- if ( ctx->tc_warn_only ) {
- errorToIgnore = -1;
- }
- status = tlsm_verify_cert( ctx->tc_certdb, cert, pin_arg,
- checkSig, certUsage, errorToIgnore );
- if ( status == SECSuccess ) {
- rc = 0;
- }
- } else {
- PRErrorCode errcode = PR_GetError();
- Debug( LDAP_DEBUG_ANY,
- "TLS: error: could not find the private key for certificate %s - error %d:%s\n",
- certname, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
- }
+ pin_arg = SSL_RevealPinArg(ctx->tc_model);
+ certUsage = ctx->tc_is_server ? certificateUsageSSLServer : certificateUsageSSLClient;
+ checkSig = ctx->tc_verify_cert ? PR_TRUE : PR_FALSE;
+ if ( ctx->tc_warn_only )
+ errorToIgnore = -1;
+ else
+ errorToIgnore = SEC_ERROR_UNKNOWN_ISSUER; /* may not have a CA cert */
- if ( pRetCert ) {
- *pRetCert = cert; /* caller will deal with this */
- } else {
- CERT_DestroyCertificate( cert );
- }
+ status = tlsm_verify_cert( ctx->tc_certdb, ctx->tc_certificate, pin_arg,
+ checkSig, certUsage, errorToIgnore );
- return rc;
+ return status == SECSuccess ? 0 : -1;
}
static int
@@ -1906,39 +1841,18 @@ tlsm_get_client_auth_data( void *arg, PRFileDesc *fd,
SECKEYPrivateKey **pRetKey )
{
tlsm_ctx *ctx = (tlsm_ctx *)arg;
- int rc;
- PRBool saveval;
- /* don't need caNames - this function will call CERT_VerifyCertificateNow
- which will verify the cert against the known CAs */
- saveval = ctx->tc_warn_only;
- ctx->tc_warn_only = PR_TRUE;
- rc = tlsm_find_and_verify_cert_key( ctx, fd, ctx->tc_certname, 0, pRetCert, pRetKey );
- ctx->tc_warn_only = saveval;
- if ( rc ) {
- Debug( LDAP_DEBUG_ANY,
- "TLS: error: unable to perform client certificate authentication for "
- "certificate named %s\n", ctx->tc_certname, 0, 0 );
- if ( pRetKey && *pRetKey ) {
- SECKEY_DestroyPrivateKey( *pRetKey );
- *pRetKey = NULL;
- }
- if ( pRetCert && *pRetCert ) {
- CERT_DestroyCertificate( *pRetCert );
- *pRetCert = NULL;
- }
- return SECFailure;
- }
+ if (pRetCert)
+ *pRetCert = CERT_DupCertificate(ctx->tc_certificate);
+
+ if (pRetKey)
+ *pRetKey = SECKEY_CopyPrivateKey(ctx->tc_private_key);
return SECSuccess;
}
/*
* ctx must have a tc_model that is valid
- * certname is in the form [<tokenname>:]<certnickname>
- * where <tokenname> is the name of the PKCS11 token
- * and <certnickname> is the nickname of the cert/key in
- * the database
*/
static int
tlsm_clientauth_init( tlsm_ctx *ctx )
@@ -1949,12 +1863,12 @@ tlsm_clientauth_init( tlsm_ctx *ctx )
saveval = ctx->tc_warn_only;
ctx->tc_warn_only = PR_TRUE;
- rc = tlsm_find_and_verify_cert_key( ctx, ctx->tc_model, ctx->tc_certname, 0, NULL, NULL );
+ rc = tlsm_find_and_verify_cert_key(ctx);
ctx->tc_warn_only = saveval;
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
"TLS: error: unable to set up client certificate authentication for "
- "certificate named %s\n", ctx->tc_certname, 0, 0 );
+ "certificate named %s\n", tlsm_ctx_subject_name(ctx), 0, 0 );
return -1;
}
@@ -1972,6 +1886,7 @@ static void
tlsm_destroy( void )
{
#ifdef LDAP_R_COMPILE
+ ldap_pvt_thread_mutex_destroy( &tlsm_ctx_count_mutex );
ldap_pvt_thread_mutex_destroy( &tlsm_init_mutex );
ldap_pvt_thread_mutex_destroy( &tlsm_pem_mutex );
#endif
@@ -2048,16 +1963,20 @@ tlsm_ctx_new ( struct ldapoptions *lo )
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_init( &ctx->tc_refmutex );
#endif
+ LDAP_MUTEX_LOCK( &tlsm_ctx_count_mutex );
+ ctx->tc_unique = tlsm_ctx_count++;
+ LDAP_MUTEX_UNLOCK( &tlsm_ctx_count_mutex );
ctx->tc_config = NULL; /* populated later by tlsm_ctx_init */
ctx->tc_certdb = NULL;
- ctx->tc_certname = NULL;
+ ctx->tc_certdb_slot = NULL;
+ ctx->tc_certificate = NULL;
+ ctx->tc_private_key = NULL;
ctx->tc_pin_file = NULL;
ctx->tc_model = NULL;
memset(&ctx->tc_callonce, 0, sizeof(ctx->tc_callonce));
ctx->tc_require_cert = lo->ldo_tls_require_cert;
ctx->tc_verify_cert = PR_FALSE;
ctx->tc_using_pem = PR_FALSE;
- ctx->tc_slotname = NULL;
#ifdef HAVE_NSS_INITCONTEXT
ctx->tc_initctx = NULL;
#endif /* HAVE_NSS_INITCONTEXT */
@@ -2090,28 +2009,38 @@ tlsm_ctx_free ( tls_ctx *ctx )
LDAP_MUTEX_UNLOCK( &c->tc_refmutex );
if ( refcount )
return;
+
+ LDAP_MUTEX_LOCK( &tlsm_init_mutex );
if ( c->tc_model )
PR_Close( c->tc_model );
+ if (c->tc_certificate)
+ CERT_DestroyCertificate(c->tc_certificate);
+ if (c->tc_private_key)
+ SECKEY_DestroyPrivateKey(c->tc_private_key);
c->tc_certdb = NULL; /* if not the default, may have to clean up */
- PL_strfree( c->tc_certname );
- c->tc_certname = NULL;
+ if ( c->tc_certdb_slot ) {
+ if ( SECMOD_CloseUserDB( c->tc_certdb_slot ) ) {
+ PRErrorCode errcode = PR_GetError();
+ Debug( LDAP_DEBUG_ANY,
+ "TLS: could not close certdb slot - error %d:%s.\n",
+ errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
+ }
+ }
PL_strfree( c->tc_pin_file );
c->tc_pin_file = NULL;
- PL_strfree( c->tc_slotname );
tlsm_free_pem_objs( c );
#ifdef HAVE_NSS_INITCONTEXT
if ( c->tc_initctx ) {
- LDAP_MUTEX_LOCK( &tlsm_init_mutex );
if ( NSS_ShutdownContext( c->tc_initctx ) ) {
PRErrorCode errcode = PR_GetError();
Debug( LDAP_DEBUG_ANY,
"TLS: could not shutdown NSS - error %d:%s.\n",
errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
}
- LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
}
c->tc_initctx = NULL;
#endif /* HAVE_NSS_INITCONTEXT */
+ LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_destroy( &c->tc_refmutex );
#endif
@@ -2173,6 +2102,12 @@ tlsm_deferred_ctx_init( void *arg )
return -1;
}
+ if ( SSL_SetPKCS11PinArg(ctx->tc_model, ctx) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "TLS: could not set pin prompt argument\n", 0, 0, 0);
+ return -1;
+ }
+
if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_SECURITY, PR_TRUE ) ) {
Debug( LDAP_DEBUG_ANY,
"TLS: could not set secure mode on.\n",
@@ -2287,14 +2222,30 @@ tlsm_deferred_ctx_init( void *arg )
/* if using the PEM module, load the PEM file specified by lt_certfile */
/* otherwise, assume this is the name of a cert already in the db */
if ( ctx->tc_using_pem ) {
- /* this sets ctx->tc_certname to the correct value */
- int rc = tlsm_add_cert_from_file( ctx, lt->lt_certfile, PR_FALSE, PR_TRUE );
+ /* this sets ctx->tc_certificate to the correct value */
+ int rc = tlsm_add_cert_from_file( ctx, lt->lt_certfile, PR_FALSE );
if ( rc ) {
return rc;
}
} else {
- PL_strfree( ctx->tc_certname );
- ctx->tc_certname = PL_strdup( lt->lt_certfile );
+ char *tmp_certname;
+
+ if (ctx->tc_certdb_slot) {
+ tmp_certname = PR_smprintf(TLSM_CERTDB_DESC_FMT ":%s", ctx->tc_unique, lt->lt_certfile);
+ } else {
+ tmp_certname = PR_smprintf("%s", lt->lt_certfile);
+ }
+
+ ctx->tc_certificate = PK11_FindCertFromNickname(tmp_certname, SSL_RevealPinArg(ctx->tc_model));
+ PR_smprintf_free(tmp_certname);
+
+ if (!ctx->tc_certificate) {
+ PRErrorCode errcode = PR_GetError();
+ Debug( LDAP_DEBUG_ANY,
+ "TLS: error: the certificate '%s' could not be found in the database - error %d:%s.\n",
+ lt->lt_certfile, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
+ return -1;
+ }
}
}
@@ -2302,7 +2253,6 @@ tlsm_deferred_ctx_init( void *arg )
/* if using the PEM module, load the PEM file specified by lt_keyfile */
/* otherwise, assume this is the pininfo for the key */
if ( ctx->tc_using_pem ) {
- /* this sets ctx->tc_certname to the correct value */
int rc = tlsm_add_key_from_file( ctx, lt->lt_keyfile );
if ( rc ) {
return rc;
@@ -2334,66 +2284,42 @@ tlsm_deferred_ctx_init( void *arg )
/*
since a cert has been specified, assume the client wants to do cert auth
*/
- if ( ctx->tc_certname ) {
- if ( tlsm_authenticate( ctx, ctx->tc_certname, ctx->tc_pin_file ) ) {
- Debug( LDAP_DEBUG_ANY,
- "TLS: error: unable to authenticate to the security device for certificate %s\n",
- ctx->tc_certname, 0, 0 );
- return -1;
- }
+ if ( ctx->tc_certificate ) {
if ( tlsm_clientauth_init( ctx ) ) {
Debug( LDAP_DEBUG_ANY,
- "TLS: error: unable to set up client certificate authentication using %s\n",
- ctx->tc_certname, 0, 0 );
+ "TLS: error: unable to set up client certificate authentication using '%s'\n",
+ tlsm_ctx_subject_name(ctx), 0, 0 );
return -1;
}
}
} else { /* set up secure server */
SSLKEAType certKEA;
- CERTCertificate *serverCert = NULL;
- SECKEYPrivateKey *serverKey = NULL;
SECStatus status;
/* must have a certificate for the server to use */
- if ( !ctx->tc_certname ) {
+ if ( !ctx->tc_certificate ) {
Debug( LDAP_DEBUG_ANY,
"TLS: error: no server certificate: must specify a certificate for the server to use\n",
0, 0, 0 );
return -1;
}
- /* authenticate to the server's token - this will do nothing
- if the key/cert db is not password protected */
- if ( tlsm_authenticate( ctx, ctx->tc_certname, ctx->tc_pin_file ) ) {
- Debug( LDAP_DEBUG_ANY,
- "TLS: error: unable to authenticate to the security device for certificate %s\n",
- ctx->tc_certname, 0, 0 );
- return -1;
- }
-
- /* get the server's key and cert */
- if ( tlsm_find_and_verify_cert_key( ctx, ctx->tc_model, ctx->tc_certname, ctx->tc_is_server,
- &serverCert, &serverKey ) ) {
+ if (tlsm_find_and_verify_cert_key(ctx)) {
Debug( LDAP_DEBUG_ANY,
"TLS: error: unable to find and verify server's cert and key for certificate %s\n",
- ctx->tc_certname, 0, 0 );
- CERT_DestroyCertificate( serverCert );
- SECKEY_DestroyPrivateKey( serverKey );
+ tlsm_ctx_subject_name(ctx), 0, 0 );
return -1;
}
- certKEA = NSS_FindCertKEAType( serverCert );
/* configure the socket to be a secure server socket */
- status = SSL_ConfigSecureServer( ctx->tc_model, serverCert, serverKey, certKEA );
- /* SSL_ConfigSecureServer copies these */
- CERT_DestroyCertificate( serverCert );
- SECKEY_DestroyPrivateKey( serverKey );
+ certKEA = NSS_FindCertKEAType( ctx->tc_certificate );
+ status = SSL_ConfigSecureServer( ctx->tc_model, ctx->tc_certificate, ctx->tc_private_key, certKEA );
if ( SECSuccess != status ) {
PRErrorCode err = PR_GetError();
Debug( LDAP_DEBUG_ANY,
- "TLS: error: unable to configure secure server using certificate %s - error %d:%s\n",
- ctx->tc_certname, err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ) );
+ "TLS: error: unable to configure secure server using certificate '%s' - error %d:%s\n",
+ tlsm_ctx_subject_name(ctx), err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ) );
return -1;
}
}
@@ -2515,7 +2441,9 @@ tlsm_session_new ( tls_ctx * ctx, int is_server )
int rc;
c->tc_is_server = is_server;
+ LDAP_MUTEX_LOCK( &tlsm_init_mutex );
status = PR_CallOnceWithArg( &c->tc_callonce, tlsm_deferred_ctx_init, c );
+ LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
if ( PR_SUCCESS != status ) {
PRErrorCode err = PR_GetError();
Debug( LDAP_DEBUG_ANY,
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