make
[openssl.git] / ssl / ssl_cert.c
index 27e7fcc..997528e 100644 (file)
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  * ====================================================================
  */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ * ECC cipher suite support in OpenSSL originally developed by 
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
+ */
 
 #include <stdio.h>
 
-#include "openssl/e_os.h"
-
+#include "e_os.h"
 #ifndef NO_SYS_TYPES_H
 # include <sys/types.h>
 #endif
 
-#if !defined(WIN32) && !defined(VSM) && !defined(NeXT) && !defined(MAC_OS_pre_X)
-#include <dirent.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 int ssl_x509_store_ctx_idx= -1;
+       static volatile int ssl_x509_store_ctx_idx= -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);
+               /* any write lock will do; usually this branch
+                * will only be taken once anyway */
+               CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+               
+               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);
                }
-       return(ssl_x509_store_ctx_idx);
+       return ssl_x509_store_ctx_idx;
        }
 
 CERT *ssl_cert_new(void)
@@ -179,16 +188,16 @@ CERT *ssl_cert_dup(CERT *cert)
        ret->mask = cert->mask;
        ret->export_mask = cert->export_mask;
 
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
        if (cert->rsa_tmp != NULL)
                {
+               RSA_up_ref(cert->rsa_tmp);
                ret->rsa_tmp = cert->rsa_tmp;
-               CRYPTO_add(&ret->rsa_tmp->references, 1, CRYPTO_LOCK_RSA);
                }
        ret->rsa_tmp_cb = cert->rsa_tmp_cb;
 #endif
 
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
        if (cert->dh_tmp != NULL)
                {
                /* DH parameters don't have a reference count */
@@ -222,6 +231,15 @@ CERT *ssl_cert_dup(CERT *cert)
        ret->dh_tmp_cb = cert->dh_tmp_cb;
 #endif
 
+#ifndef OPENSSL_NO_ECDH
+       if (cert->ecdh_tmp)
+               {
+               EC_KEY_up_ref(cert->ecdh_tmp);
+               ret->ecdh_tmp = cert->ecdh_tmp;
+               }
+       ret->ecdh_tmp_cb = cert->ecdh_tmp_cb;
+#endif
+
        for (i = 0; i < SSL_PKEY_NUM; i++)
                {
                if (cert->pkeys[i].x509 != NULL)
@@ -256,7 +274,11 @@ CERT *ssl_cert_dup(CERT *cert)
                        case SSL_PKEY_DH_DSA:
                                /* We have a DH key. */
                                break;
-                               
+
+                       case SSL_PKEY_ECC:
+                               /* We have an ECC key */
+                               break;
+
                        default:
                                /* Can't happen. */
                                SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG);
@@ -271,17 +293,21 @@ CERT *ssl_cert_dup(CERT *cert)
 
        return(ret);
        
-#ifndef NO_DH /* avoid 'unreferenced label' warning if NO_DH is defined */
+#ifndef OPENSSL_NO_DH /* avoid 'unreferenced label' warning if OPENSSL_NO_DH is defined */
 err:
 #endif
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
        if (ret->rsa_tmp != NULL)
                RSA_free(ret->rsa_tmp);
 #endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
        if (ret->dh_tmp != NULL)
                DH_free(ret->dh_tmp);
 #endif
+#ifndef OPENSSL_NO_ECDH
+       if (ret->ecdh_tmp != NULL)
+               EC_KEY_free(ret->ecdh_tmp);
+#endif
 
        for (i = 0; i < SSL_PKEY_NUM; i++)
                {
@@ -315,12 +341,15 @@ void ssl_cert_free(CERT *c)
                }
 #endif
 
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
        if (c->rsa_tmp) RSA_free(c->rsa_tmp);
 #endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
        if (c->dh_tmp) DH_free(c->dh_tmp);
 #endif
+#ifndef OPENSSL_NO_ECDH
+       if (c->ecdh_tmp) EC_KEY_free(c->ecdh_tmp);
+#endif
 
        for (i=0; i<SSL_PKEY_NUM; i++)
                {
@@ -419,14 +448,18 @@ void ssl_sess_cert_free(SESS_CERT *sc)
 #endif
                }
 
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
        if (sc->peer_rsa_tmp != NULL)
                RSA_free(sc->peer_rsa_tmp);
 #endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
        if (sc->peer_dh_tmp != NULL)
                DH_free(sc->peer_dh_tmp);
 #endif
+#ifndef OPENSSL_NO_ECDH
+       if (sc->peer_ecdh_tmp != NULL)
+               EC_KEY_free(sc->peer_ecdh_tmp);
+#endif
 
        OPENSSL_free(sc);
        }
@@ -447,25 +480,40 @@ int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk)
                return(0);
 
        x=sk_X509_value(sk,0);
-       X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk);
+       if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,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_set_default(&ctx,
+                               s->server ? "ssl_client" : "ssl_server");
 
-       X509_STORE_CTX_purpose_inherit(&ctx, i, s->purpose, s->trust);
+       if (s->verify_callback)
+               X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback);
 
        if (s->ctx->app_verify_callback != NULL)
+#if 1 /* new with OpenSSL 0.9.7 */
+               i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg); 
+#else
                i=s->ctx->app_verify_callback(&ctx); /* should pass app_verify_arg */
+#endif
        else
                {
-#ifndef NO_X509_VERIFY
+#ifndef OPENSSL_NO_X509_VERIFY
                i=X509_verify_cert(&ctx);
 #else
                i=0;
@@ -480,12 +528,12 @@ 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)
@@ -507,22 +555,22 @@ 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 */
@@ -575,7 +623,7 @@ static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
        return(X509_NAME_cmp(*a,*b));
        }
 
-#ifndef NO_STDIO
+#ifndef OPENSSL_NO_STDIO
 /*!
  * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
  * it doesn't really have anything to do with clients (except that a common use
@@ -589,14 +637,13 @@ 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;
@@ -609,6 +656,15 @@ 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);
@@ -631,6 +687,8 @@ 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
@@ -705,53 +763,52 @@ err:
  * certs may have been added to \c stack.
  */
 
-#ifndef WIN32
-#ifndef VMS                    /* XXXX This may be fixed in the future */
-#ifndef MAC_OS_pre_X
-
 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);
-               if (r <= 0 || r >= sizeof buf)
+
+#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;
                }
+
+       if (errno)
+               {
+               SYSerr(SYS_F_OPENDIR, get_last_sys_error());
+               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;
+               }
+
        ret = 1;
 
-err:   
+err:
+       if (d) OPENSSL_DIR_end(&d);
        CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
        return ret;
        }
 
-#endif
-#endif
-#endif