Apply Lutz Behnke's 56 bit cipher patch with a few
[openssl.git] / ssl / ssl_lib.c
index aa181ab8c1f9ca8865ea8bba2e0d2a55700f85d0..4d74f6e45cd5a7dc0b78fc8a8136cb6e50b7786d 100644 (file)
@@ -61,6 +61,7 @@
 #include <stdio.h>
 #include <openssl/objects.h>
 #include <openssl/lhash.h>
+#include <openssl/x509v3.h>
 #include "ssl_locl.h"
 
 char *SSL_version_str=OPENSSL_VERSION_TEXT;
@@ -71,12 +72,25 @@ static int ssl_meth_num=0;
 static int ssl_ctx_meth_num=0;
 
 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
+       /* evil casts, but these functions are only called if there's a libraryr bug */
+       (int (*)(SSL *,int))ssl_undefined_function,
+       (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
        ssl_undefined_function,
-       ssl_undefined_function,
-       ssl_undefined_function,
-       ssl_undefined_function,
-       ssl_undefined_function,
-       ssl_undefined_function,
+       (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
+       (int (*)(SSL*, int))ssl_undefined_function,
+       (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
+       };
+
+union rsa_fn_to_char_u
+       {
+       char *char_p;
+       RSA *(*fn_p)(SSL *, int, int);
+       };
+
+union dh_fn_to_char_u
+       {
+       char *char_p;
+       DH *(*fn_p)(SSL *, int, int);
        };
 
 int SSL_clear(SSL *s)
@@ -201,6 +215,8 @@ SSL *SSL_new(SSL_CTX *ctx)
        s->verify_mode=ctx->verify_mode;
        s->verify_depth=ctx->verify_depth;
        s->verify_callback=ctx->default_verify_callback;
+       s->purpose = ctx->purpose;
+       s->trust = ctx->trust;
        CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
        s->ctx=ctx;
 
@@ -215,6 +231,7 @@ SSL *SSL_new(SSL_CTX *ctx)
        s->references=1;
        s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
        s->options=ctx->options;
+       s->mode=ctx->mode;
        SSL_clear(s);
 
        CRYPTO_new_ex_data(ssl_meth,(char *)s,&s->ex_data);
@@ -261,6 +278,46 @@ int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
     return 1;
     }
 
+int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
+{
+       if(X509_PURPOSE_get_by_id(purpose) == -1) {
+               SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
+               return 0;
+       }
+       s->purpose = purpose;
+       return 1;
+}
+
+int SSL_set_purpose(SSL *s, int purpose)
+{
+       if(X509_PURPOSE_get_by_id(purpose) == -1) {
+               SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
+               return 0;
+       }
+       s->purpose = purpose;
+       return 1;
+}
+       
+int SSL_CTX_set_trust(SSL_CTX *s, int trust)
+{
+       if(X509_TRUST_get_by_id(trust) == -1) {
+               SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
+               return 0;
+       }
+       s->trust = trust;
+       return 1;
+}
+
+int SSL_set_trust(SSL *s, int trust)
+{
+       if(X509_TRUST_get_by_id(trust) == -1) {
+               SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
+               return 0;
+       }
+       s->trust = trust;
+       return 1;
+}
+
 void SSL_free(SSL *s)
        {
        int i;
@@ -432,6 +489,38 @@ err:
        }
 #endif
 
+
+/* return length of latest Finished message we sent, copy to 'buf' */
+size_t SSL_get_finished(SSL *s, void *buf, size_t count)
+       {
+       size_t ret = 0;
+       
+       if (s->s3 != NULL)
+               {
+               ret = s->s3->tmp.finish_md_len;
+               if (count > ret)
+                       count = ret;
+               memcpy(buf, s->s3->tmp.finish_md, count);
+               }
+       return ret;
+       }
+
+/* return length of latest Finished message we expected, copy to 'buf' */
+size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
+       {
+       size_t ret = 0;
+       
+       if (s->s3 != NULL)
+               {
+               ret = s->s3->tmp.peer_finish_md_len;
+               if (count > ret)
+                       count = ret;
+               memcpy(buf, s->s3->tmp.peer_finish_md, count);
+               }
+       return ret;
+       }
+
+
 int SSL_get_verify_mode(SSL *s)
        {
        return(s->verify_mode);
@@ -575,7 +664,10 @@ int SSL_check_private_key(SSL *ssl)
                return(0);
                }
        if (ssl->cert == NULL)
-               return(SSL_CTX_check_private_key(ssl->ctx));
+               {
+                SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
+               return 0;
+               }
        if (ssl->cert->key->x509 == NULL)
                {
                SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
@@ -695,6 +787,8 @@ long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
                return(l);
        case SSL_CTRL_OPTIONS:
                return(s->options|=larg);
+       case SSL_CTRL_MODE:
+               return(s->mode|=larg);
        default:
                return(s->method->ssl_ctrl(s,cmd,larg,parg));
                }
@@ -752,6 +846,8 @@ long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
                return(ctx->stats.sess_cache_full);
        case SSL_CTRL_OPTIONS:
                return(ctx->options|=larg);
+       case SSL_CTRL_MODE:
+               return(ctx->mode|=larg);
        default:
                return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
                }
@@ -826,8 +922,8 @@ const char *SSL_get_cipher_list(SSL *s,int n)
        return(c->name);
        }
 
-/** specify the ciphers to be used by defaut by the SSL_CTX */
-int SSL_CTX_set_cipher_list(SSL_CTX *ctx,char *str)
+/** specify the ciphers to be used by default by the SSL_CTX */
+int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
        {
        STACK_OF(SSL_CIPHER) *sk;
        
@@ -838,7 +934,7 @@ int SSL_CTX_set_cipher_list(SSL_CTX *ctx,char *str)
        }
 
 /** specify the ciphers to be used by the SSL */
-int SSL_set_cipher_list(SSL *s,char *str)
+int SSL_set_cipher_list(SSL *s,const char *str)
        {
        STACK_OF(SSL_CIPHER) *sk;
        
@@ -1027,6 +1123,7 @@ SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
                goto err;
 
        ret->default_passwd_callback=NULL;
+       ret->default_passwd_callback_userdata=NULL;
        ret->client_cert_cb=NULL;
 
        ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
@@ -1126,10 +1223,20 @@ void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
        ctx->default_passwd_callback=cb;
        }
 
+void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
+       {
+       ctx->default_passwd_callback_userdata=u;
+       }
+
 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
        {
+       /* now
+        *     int (*cb)(X509_STORE_CTX *),
+        * but should be
+        *     int (*cb)(X509_STORE_CTX *, void *arg)
+        */
        ctx->app_verify_callback=cb;
-       ctx->app_verify_arg=arg;
+       ctx->app_verify_arg=arg; /* never used */
        }
 
 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
@@ -1255,7 +1362,7 @@ X509 *ssl_get_server_send_cert(SSL *s)
        c=s->cert;
        ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
        alg=s->s3->tmp.new_cipher->algorithms;
-       is_export=SSL_IS_EXPORT(alg);
+       is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
        mask=is_export?c->export_mask:c->mask;
        kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
 
@@ -1695,7 +1802,7 @@ int ssl_init_wbio_buffer(SSL *s,int push)
                if (s->bbio == s->wbio)
                        s->wbio=BIO_pop(s->wbio);
                }
-       BIO_reset(bbio);
+       (void)BIO_reset(bbio);
 /*     if (!BIO_set_write_buffer_size(bbio,16*1024)) */
        if (!BIO_set_read_buffer_size(bbio,1))
                {
@@ -1880,13 +1987,23 @@ int SSL_want(SSL *s)
 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
                                                          int is_export,
                                                          int keylength))
-    { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
+    {
+    union rsa_fn_to_char_u rsa_tmp_cb;
+
+    rsa_tmp_cb.fn_p = cb;
+    SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,0,rsa_tmp_cb.char_p);
+    }
 #endif
 
 #ifndef NO_RSA
 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,int is_export,
                                                          int keylength))
-    { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
+    {
+    union rsa_fn_to_char_u rsa_tmp_cb;
+
+    rsa_tmp_cb.fn_p = cb;
+    SSL_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,0,rsa_tmp_cb.char_p);
+    }
 #endif
 
 #ifdef DOXYGEN
@@ -1913,11 +2030,21 @@ RSA *cb(SSL *ssl,int is_export,int keylength)
 #ifndef NO_DH
 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
                                                        int keylength))
-    { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
+    {
+    union dh_fn_to_char_u dh_tmp_cb;
+
+    dh_tmp_cb.fn_p = dh;
+    SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,0,dh_tmp_cb.char_p);
+    }
 
 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
                                                        int keylength))
-    { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
+    {
+    union dh_fn_to_char_u dh_tmp_cb;
+
+    dh_tmp_cb.fn_p = dh;
+    SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,0,dh_tmp_cb.char_p);
+    }
 #endif
 
 #if defined(_WINDLL) && defined(WIN16)