Change safestack reimplementation to match 0.9.8.
[openssl.git] / ssl / ssl_cert.c
index ad56b7bf70cc331ef4f53f067fba60264e3ba026..ccb30e0760d20e04d64a4c2d87692af996502b1e 100644 (file)
@@ -56,7 +56,7 @@
  * [including the GNU Public Licence.]
  */
 /* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1998-2007 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * 3. All advertising materials mentioning features or use of this
  *    software must display the following acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  *
  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  *    endorse or promote products derived from this software without
  *    prior written permission. For written permission, please contact
- *    openssl-core@OpenSSL.org.
+ *    openssl-core@openssl.org.
  *
  * 5. Products derived from this software may not be called "OpenSSL"
  *    nor may "OpenSSL" appear in their names without prior written
@@ -87,7 +87,7 @@
  * 6. Redistributions of any form whatsoever must retain the following
  *    acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  *
  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
  */
 /* ====================================================================
  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 # include <sys/types.h>
 #endif
 
-#if !defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_SYS_VMS) && !defined(NeXT) && !defined(MAC_OS_pre_X)
-#include <dirent.h>
-#endif
-
-#if defined(WIN32)
-#include <windows.h>
-#endif
-
-#ifdef NeXT
-#include <sys/dir.h>
-#define dirent direct
-#endif
-
+#include "o_dir.h"
 #include <openssl/objects.h>
 #include <openssl/bio.h>
 #include <openssl/pem.h>
 #include <openssl/x509v3.h>
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+#include <openssl/bn.h>
 #include "ssl_locl.h"
 
 int SSL_get_ex_data_X509_STORE_CTX_idx(void)
        {
        static volatile int ssl_x509_store_ctx_idx= -1;
+       int got_write_lock = 0;
+
+       CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
 
        if (ssl_x509_store_ctx_idx < 0)
                {
-               /* any write lock will do; usually this branch
-                * will only be taken once anyway */
+               CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
                CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+               got_write_lock = 1;
                
                if (ssl_x509_store_ctx_idx < 0)
                        {
                        ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index(
                                0,"SSL for verify callback",NULL,NULL,NULL);
                        }
-               
-               CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
                }
+
+       if (got_write_lock)
+               CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+       else
+               CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
+       
        return ssl_x509_store_ctx_idx;
        }
 
@@ -193,8 +197,10 @@ CERT *ssl_cert_dup(CERT *cert)
         * if you find that more readable */
 
        ret->valid = cert->valid;
-       ret->mask = cert->mask;
-       ret->export_mask = cert->export_mask;
+       ret->mask_k = cert->mask_k;
+       ret->mask_a = cert->mask_a;
+       ret->export_mask_k = cert->export_mask_k;
+       ret->export_mask_a = cert->export_mask_a;
 
 #ifndef OPENSSL_NO_RSA
        if (cert->rsa_tmp != NULL)
@@ -208,7 +214,6 @@ CERT *ssl_cert_dup(CERT *cert)
 #ifndef OPENSSL_NO_DH
        if (cert->dh_tmp != NULL)
                {
-               /* DH parameters don't have a reference count */
                ret->dh_tmp = DHparams_dup(cert->dh_tmp);
                if (ret->dh_tmp == NULL)
                        {
@@ -242,8 +247,12 @@ CERT *ssl_cert_dup(CERT *cert)
 #ifndef OPENSSL_NO_ECDH
        if (cert->ecdh_tmp)
                {
-               EC_KEY_up_ref(cert->ecdh_tmp);
-               ret->ecdh_tmp = cert->ecdh_tmp;
+               ret->ecdh_tmp = EC_KEY_dup(cert->ecdh_tmp);
+               if (ret->ecdh_tmp == NULL)
+                       {
+                       SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_EC_LIB);
+                       goto err;
+                       }
                }
        ret->ecdh_tmp_cb = cert->ecdh_tmp_cb;
 #endif
@@ -301,7 +310,7 @@ CERT *ssl_cert_dup(CERT *cert)
 
        return(ret);
        
-#ifndef OPENSSL_NO_DH /* avoid 'unreferenced label' warning if OPENSSL_NO_DH is defined */
+#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH)
 err:
 #endif
 #ifndef OPENSSL_NO_RSA
@@ -493,20 +502,22 @@ int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk)
                SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB);
                return(0);
                }
+       if (s->param)
+               X509_VERIFY_PARAM_inherit(X509_STORE_CTX_get0_param(&ctx),
+                                               s->param);
+#if 0
        if (SSL_get_verify_depth(s) >= 0)
                X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s));
+#endif
        X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s);
 
-       /* We need to set the verify purpose. The purpose can be determined by
+       /* We need to inherit the verify parameters. These can be determined by
         * the context: if its a server it will verify SSL client certificates
         * or vice versa.
         */
-       if (s->server)
-               i = X509_PURPOSE_SSL_CLIENT;
-       else
-               i = X509_PURPOSE_SSL_SERVER;
 
-       X509_STORE_CTX_purpose_inherit(&ctx, i, s->purpose, s->trust);
+       X509_STORE_CTX_set_default(&ctx,
+                               s->server ? "ssl_client" : "ssl_server");
 
        if (s->verify_callback)
                X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback);
@@ -534,12 +545,12 @@ int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk)
        return(i);
        }
 
-static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *list)
+static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *name_list)
        {
        if (*ca_list != NULL)
                sk_X509_NAME_pop_free(*ca_list,X509_NAME_free);
 
-       *ca_list=list;
+       *ca_list=name_list;
        }
 
 STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk)
@@ -561,22 +572,22 @@ STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk)
        return(ret);
        }
 
-void SSL_set_client_CA_list(SSL *s,STACK_OF(X509_NAME) *list)
+void SSL_set_client_CA_list(SSL *s,STACK_OF(X509_NAME) *name_list)
        {
-       set_client_CA_list(&(s->client_CA),list);
+       set_client_CA_list(&(s->client_CA),name_list);
        }
 
-void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *list)
+void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *name_list)
        {
-       set_client_CA_list(&(ctx->client_CA),list);
+       set_client_CA_list(&(ctx->client_CA),name_list);
        }
 
-STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(SSL_CTX *ctx)
+STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx)
        {
        return(ctx->client_CA);
        }
 
-STACK_OF(X509_NAME) *SSL_get_client_CA_list(SSL *s)
+STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s)
        {
        if (s->type == SSL_ST_CONNECT)
                { /* we are in the client */
@@ -643,14 +654,13 @@ STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file)
        BIO *in;
        X509 *x=NULL;
        X509_NAME *xn=NULL;
-       STACK_OF(X509_NAME) *ret,*sk;
+       STACK_OF(X509_NAME) *ret = NULL,*sk;
 
-       ret=sk_X509_NAME_new_null();
        sk=sk_X509_NAME_new(xname_cmp);
 
        in=BIO_new(BIO_s_file_internal());
 
-       if ((ret == NULL) || (sk == NULL) || (in == NULL))
+       if ((sk == NULL) || (in == NULL))
                {
                SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
                goto err;
@@ -663,6 +673,15 @@ STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file)
                {
                if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)
                        break;
+               if (ret == NULL)
+                       {
+                       ret = sk_X509_NAME_new_null();
+                       if (ret == NULL)
+                               {
+                               SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
+                               goto err;
+                               }
+                       }
                if ((xn=X509_get_subject_name(x)) == NULL) goto err;
                /* check for duplicates */
                xn=X509_NAME_dup(xn);
@@ -685,6 +704,8 @@ err:
        if (sk != NULL) sk_X509_NAME_free(sk);
        if (in != NULL) BIO_free(in);
        if (x != NULL) X509_free(x);
+       if (ret != NULL)
+               ERR_clear_error();
        return(ret);
        }
 #endif
@@ -743,7 +764,7 @@ err:
        if(x != NULL)
                X509_free(x);
        
-       sk_X509_NAME_set_cmp_func(stack,oldcmp);
+       (void)sk_X509_NAME_set_cmp_func(stack,oldcmp);
 
        return ret;
        }
@@ -759,131 +780,52 @@ err:
  * certs may have been added to \c stack.
  */
 
-#ifndef OPENSSL_SYS_WIN32
-#ifndef OPENSSL_SYS_VMS                /* XXXX This may be fixed in the future */
-#ifndef OPENSSL_SYS_MACINTOSH_CLASSIC /* XXXXX: Better scheme needed! */
-
 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
                                       const char *dir)
        {
-       DIR *d;
-       struct dirent *dstruct;
+       OPENSSL_DIR_CTX *d = NULL;
+       const char *filename;
        int ret = 0;
 
        CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
-       d = opendir(dir);
 
        /* Note that a side effect is that the CAs will be sorted by name */
-       if(!d)
-               {
-               SYSerr(SYS_F_OPENDIR, get_last_sys_error());
-               ERR_add_error_data(3, "opendir('", dir, "')");
-               SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
-               goto err;
-               }
-       
-       while((dstruct=readdir(d)))
+
+       while((filename = OPENSSL_DIR_read(&d, dir)))
                {
                char buf[1024];
                int r;
-               
-               if(strlen(dir)+strlen(dstruct->d_name)+2 > sizeof buf)
+
+               if(strlen(dir)+strlen(filename)+2 > sizeof buf)
                        {
                        SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
                        goto err;
                        }
-               
-               r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,dstruct->d_name);
+
+#ifdef OPENSSL_SYS_VMS
+               r = BIO_snprintf(buf,sizeof buf,"%s%s",dir,filename);
+#else
+               r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,filename);
+#endif
                if (r <= 0 || r >= (int)sizeof(buf))
                        goto err;
                if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
                        goto err;
                }
-       ret = 1;
 
-err:   
-       if (d) closedir(d);
-       CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
-       return ret;
-       }
-
-#endif
-#endif
-
-#else /* OPENSSL_SYS_WIN32 */
-
-int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
-                                      const char *dir)
-       {
-       WIN32_FIND_DATA FindFileData;
-       HANDLE hFind;
-       int ret = 0;
-#ifdef OPENSSL_SYS_WINCE
-       WCHAR* wdir = NULL;
-#endif
-
-       CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
-       
-#ifdef OPENSSL_SYS_WINCE
-       /* convert strings to UNICODE */
-       {
-               BOOL result = FALSE;
-               int i;
-               wdir = malloc((strlen(dir)+1)*2);
-               if (wdir == NULL)
-                       goto err_noclose;
-               for (i=0; i<(int)strlen(dir)+1; i++)
-                       wdir[i] = (short)dir[i];
-       }
-#endif
-
-#ifdef OPENSSL_SYS_WINCE
-       hFind = FindFirstFile(wdir, &FindFileData);
-#else
-       hFind = FindFirstFile(dir, &FindFileData);
-#endif
-       /* Note that a side effect is that the CAs will be sorted by name */
-       if(hFind == INVALID_HANDLE_VALUE)
+       if (errno)
                {
                SYSerr(SYS_F_OPENDIR, get_last_sys_error());
-               ERR_add_error_data(3, "opendir('", dir, "')");
+               ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')");
                SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
-               goto err_noclose;
-               }
-       
-       do 
-               {
-               char buf[1024];
-               int r;
-               
-#ifdef OPENSSL_SYS_WINCE
-               if(strlen(dir)+_tcslen(FindFileData.cFileName)+2 > sizeof buf)
-#else
-               if(strlen(dir)+strlen(FindFileData.cFileName)+2 > sizeof buf)
-#endif
-                       {
-                       SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
-                       goto err;
-                       }
-               
-               r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,FindFileData.cFileName);
-               if (r <= 0 || r >= sizeof buf)
-                       goto err;
-               if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
-                       goto err;
+               goto err;
                }
-       while (FindNextFile(hFind, &FindFileData) != FALSE);
+
        ret = 1;
 
 err:
-       FindClose(hFind);
-err_noclose:
-#ifdef OPENSSL_SYS_WINCE
-       if (wdir != NULL)
-               free(wdir);
-#endif
+       if (d) OPENSSL_DIR_end(&d);
        CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
        return ret;
        }
 
-#endif