Enable DSO support on alpha (OSF1), cc and gcc.
[openssl.git] / ssl / s2_lib.c
index 172fc361cf18ae87c349ef62262e24977207722b..8c9d992541bdb6e2d8803a14de804999df01e43f 100644 (file)
  * [including the GNU Public Licence.]
  */
 
-#include <stdio.h>
-#include "rsa.h"
-#include "objects.h"
 #include "ssl_locl.h"
+#ifndef NO_SSL2
+#include <stdio.h>
+#include <openssl/rsa.h>
+#include <openssl/objects.h>
+#include <openssl/md5.h>
 
-#ifndef NOPROTO
 static long ssl2_default_timeout(void );
-#else
-static long ssl2_default_timeout();
-#endif
-
-char *ssl2_version_str="SSLv2 part of SSLeay 0.9.1a 06-Jul-1998";
+const char *ssl2_version_str="SSLv2" OPENSSL_VERSION_PTEXT;
 
 #define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER))
 
-SSL_CIPHER ssl2_ciphers[]={
+OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers[]={
 /* NULL_WITH_MD5 v3 */
 #if 0
        {
        1,
        SSL2_TXT_NULL_WITH_MD5,
        SSL2_CK_NULL_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5|SSL_EXP|SSL_SSLV2,
+       SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5|SSL_SSLV2,
+       SSL_EXPORT|SSL_EXP40,
+       0,
        0,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 #endif
 /* RC4_128_EXPORT40_WITH_MD5 */
@@ -88,63 +88,91 @@ SSL_CIPHER ssl2_ciphers[]={
        1,
        SSL2_TXT_RC4_128_EXPORT40_WITH_MD5,
        SSL2_CK_RC4_128_EXPORT40_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_EXP|SSL_SSLV2,
+       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+       SSL_EXPORT|SSL_EXP40,
        SSL2_CF_5_BYTE_ENC,
+       40,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* RC4_128_WITH_MD5 */
        {
        1,
        SSL2_TXT_RC4_128_WITH_MD5,
        SSL2_CK_RC4_128_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
+       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_MEDIUM,
        0,
+       128,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* RC2_128_CBC_EXPORT40_WITH_MD5 */
        {
        1,
        SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5,
        SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_EXP|SSL_SSLV2,
+       SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2,
+       SSL_EXPORT|SSL_EXP40,
        SSL2_CF_5_BYTE_ENC,
+       40,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* RC2_128_CBC_WITH_MD5 */
        {
        1,
        SSL2_TXT_RC2_128_CBC_WITH_MD5,
        SSL2_CK_RC2_128_CBC_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
+       SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_MEDIUM,
        0,
+       128,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* IDEA_128_CBC_WITH_MD5 */
        {
        1,
        SSL2_TXT_IDEA_128_CBC_WITH_MD5,
        SSL2_CK_IDEA_128_CBC_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_IDEA|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
+       SSL_kRSA|SSL_aRSA|SSL_IDEA|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_MEDIUM,
        0,
+       128,
+       128,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* DES_64_CBC_WITH_MD5 */
        {
        1,
        SSL2_TXT_DES_64_CBC_WITH_MD5,
        SSL2_CK_DES_64_CBC_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_LOW,
+       SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_LOW,
        0,
+       56,
+       56,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* DES_192_EDE3_CBC_WITH_MD5 */
        {
        1,
        SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5,
        SSL2_CK_DES_192_EDE3_CBC_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_HIGH,
+       SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_HIGH,
        0,
+       168,
+       168,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 /* RC4_64_WITH_MD5 */
 #if 1
@@ -152,9 +180,13 @@ SSL_CIPHER ssl2_ciphers[]={
        1,
        SSL2_TXT_RC4_64_WITH_MD5,
        SSL2_CK_RC4_64_WITH_MD5,
-       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2|SSL_LOW,
+       SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+       SSL_NOT_EXP|SSL_LOW,
        SSL2_CF_8_BYTE_ENC,
+       64,
+       64,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 #endif
 /* NULL SSLeay (testing) */
@@ -164,7 +196,11 @@ SSL_CIPHER ssl2_ciphers[]={
        SSL2_TXT_NULL,
        SSL2_CK_NULL,
        0,
+       0,
+       0,
+       0,
        SSL_ALL_CIPHERS,
+       SSL_ALL_STRENGTHS,
        },
 #endif
 
@@ -194,25 +230,27 @@ static SSL_METHOD SSLv2_data= {
        ssl_bad_method,
        ssl2_default_timeout,
        &ssl3_undef_enc_method,
+       ssl_undefined_function,
+       ssl2_callback_ctrl,     /* local */
+       ssl2_ctx_callback_ctrl, /* local */
        };
 
-static long ssl2_default_timeout()
+static long ssl2_default_timeout(void)
        {
        return(300);
        }
 
-SSL_METHOD *sslv2_base_method()
+SSL_METHOD *sslv2_base_method(void)
        {
        return(&SSLv2_data);
        }
 
-int ssl2_num_ciphers()
+int ssl2_num_ciphers(void)
        {
        return(SSL2_NUM_CIPHERS);
        }
 
-SSL_CIPHER *ssl2_get_cipher(u)
-unsigned int u;
+SSL_CIPHER *ssl2_get_cipher(unsigned int u)
        {
        if (u < SSL2_NUM_CIPHERS)
                return(&(ssl2_ciphers[SSL2_NUM_CIPHERS-1-u]));
@@ -220,23 +258,21 @@ unsigned int u;
                return(NULL);
        }
 
-int ssl2_pending(s)
-SSL *s;
+int ssl2_pending(SSL *s)
        {
        return(s->s2->ract_data_length);
        }
 
-int ssl2_new(s)
-SSL *s;
+int ssl2_new(SSL *s)
        {
-       SSL2_CTX *s2;
+       SSL2_STATE *s2;
 
-       if ((s2=(SSL2_CTX *)Malloc(sizeof(SSL2_CTX))) == NULL) goto err;
-       memset(s2,0,sizeof(SSL2_CTX));
+       if ((s2=OPENSSL_malloc(sizeof *s2)) == NULL) goto err;
+       memset(s2,0,sizeof *s2);
 
-       if ((s2->rbuf=(unsigned char *)Malloc(
+       if ((s2->rbuf=OPENSSL_malloc(
                SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
-       if ((s2->wbuf=(unsigned char *)Malloc(
+       if ((s2->wbuf=OPENSSL_malloc(
                SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
        s->s2=s2;
 
@@ -245,30 +281,31 @@ SSL *s;
 err:
        if (s2 != NULL)
                {
-               if (s2->wbuf != NULL) Free(s2->wbuf);
-               if (s2->rbuf != NULL) Free(s2->rbuf);
-               Free(s2);
+               if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
+               if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
+               OPENSSL_free(s2);
                }
        return(0);
        }
 
-void ssl2_free(s)
-SSL *s;
+void ssl2_free(SSL *s)
        {
-       SSL2_CTX *s2;
+       SSL2_STATE *s2;
+
+       if(s == NULL)
+           return;
 
        s2=s->s2;
-       if (s2->rbuf != NULL) Free(s2->rbuf);
-       if (s2->wbuf != NULL) Free(s2->wbuf);
-       memset(s2,0,sizeof(SSL2_CTX));
-       Free(s2);
+       if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
+       if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
+       memset(s2,0,sizeof *s2);
+       OPENSSL_free(s2);
        s->s2=NULL;
        }
 
-void ssl2_clear(s)
-SSL *s;
+void ssl2_clear(SSL *s)
        {
-       SSL2_CTX *s2;
+       SSL2_STATE *s2;
        unsigned char *rbuf,*wbuf;
 
        s2=s->s2;
@@ -276,7 +313,7 @@ SSL *s;
        rbuf=s2->rbuf;
        wbuf=s2->wbuf;
 
-       memset(s2,0,sizeof(SSL2_CTX));
+       memset(s2,0,sizeof *s2);
 
        s2->rbuf=rbuf;
        s2->wbuf=wbuf;
@@ -286,11 +323,7 @@ SSL *s;
        s->packet_length=0;
        }
 
-long ssl2_ctrl(s,cmd,larg,parg)
-SSL *s;
-int cmd;
-long larg;
-char *parg;
+long ssl2_ctrl(SSL *s, int cmd, long larg, char *parg)
        {
        int ret=0;
 
@@ -305,19 +338,24 @@ char *parg;
        return(ret);
        }
 
-long ssl2_ctx_ctrl(ctx,cmd,larg,parg)
-SSL_CTX *ctx;
-int cmd;
-long larg;
-char *parg;
+long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp)())
+       {
+       return(0);
+       }
+
+long ssl2_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, char *parg)
+       {
+       return(0);
+       }
+
+long ssl2_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
        {
        return(0);
        }
 
 /* This function needs to check if the ciphers required are actually
  * available */
-SSL_CIPHER *ssl2_get_cipher_by_char(p)
-unsigned char *p;
+SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p)
        {
        static int init=1;
        static SSL_CIPHER *sorted[SSL2_NUM_CIPHERS];
@@ -327,7 +365,7 @@ unsigned char *p;
 
        if (init)
                {
-               init=0;
+               CRYPTO_w_lock(CRYPTO_LOCK_SSL);
 
                for (i=0; i<SSL2_NUM_CIPHERS; i++)
                        sorted[i]= &(ssl2_ciphers[i]);
@@ -335,6 +373,9 @@ unsigned char *p;
                qsort(  (char *)sorted,
                        SSL2_NUM_CIPHERS,sizeof(SSL_CIPHER *),
                        FP_ICC ssl_cipher_ptr_id_cmp);
+
+               CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
+               init=0;
                }
 
        id=0x02000000L|((unsigned long)p[0]<<16L)|
@@ -350,9 +391,7 @@ unsigned char *p;
                return(*cpp);
        }
 
-int ssl2_put_cipher_by_char(c,p)
-SSL_CIPHER *c;
-unsigned char *p;
+int ssl2_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
        {
        long l;
 
@@ -367,21 +406,25 @@ unsigned char *p;
        return(3);
        }
 
-void ssl2_generate_key_material(s)
-SSL *s;
+void ssl2_generate_key_material(SSL *s)
        {
        unsigned int i;
        MD5_CTX ctx;
        unsigned char *km;
        unsigned char c='0';
 
+#ifdef CHARSET_EBCDIC
+       c = os_toascii['0']; /* Must be an ASCII '0', not EBCDIC '0',
+                               see SSLv2 docu */
+#endif
+
        km=s->s2->key_material;
        for (i=0; i<s->s2->key_material_length; i+=MD5_DIGEST_LENGTH)
                {
                MD5_Init(&ctx);
 
                MD5_Update(&ctx,s->session->master_key,s->session->master_key_length);
-               MD5_Update(&ctx,(unsigned char *)&c,1);
+               MD5_Update(&ctx,&c,1);
                c++;
                MD5_Update(&ctx,s->s2->challenge,s->s2->challenge_length);
                MD5_Update(&ctx,s->s2->conn_id,s->s2->conn_id_length);
@@ -390,9 +433,7 @@ SSL *s;
                }
        }
 
-void ssl2_return_error(s,err)
-SSL *s;
-int err;
+void ssl2_return_error(SSL *s, int err)
        {
        if (!s->error)
                {
@@ -404,10 +445,9 @@ int err;
        }
 
 
-void ssl2_write_error(s)
-SSL *s;
+void ssl2_write_error(SSL *s)
        {
-       char buf[3];
+       unsigned char buf[3];
        int i,error;
 
        buf[0]=SSL2_MT_ERROR;
@@ -428,10 +468,15 @@ SSL *s;
                s->error=0; */
        }
 
-int ssl2_shutdown(s)
-SSL *s;
+int ssl2_shutdown(SSL *s)
        {
        s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
        return(1);
        }
+#else /* !NO_SSL2 */
+
+# if PEDANTIC
+static void *dummy=&dummy;
+# endif
 
+#endif