Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build

functionality for shared libs.

Note that routines such as sslv2_init and friends that use RSA will
not work due to lack of RSA in this library.

Needs documentation and help from ports for easy upgrade to full
functionality where legally possible.

1 files changed, 469 insertions, 0 deletions

diff --git a/lib/libssl/src/ssl/s3_both.c b/lib/libssl/src/ssl/s3_both.c
new file mode 100644
index 00000000000..6de62e15916
--- /dev/null
+++ b/lib/libssl/src/ssl/s3_both.c
@@ -0,0 +1,469 @@
+/* ssl/s3_both.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "buffer.h"
+#include "rand.h"
+#include "objects.h"
+#include "evp.h"
+#include "x509.h"
+#include "ssl_locl.h"
+
+#define BREAK	break
+
+/* SSL3err(SSL_F_SSL3_GET_FINISHED,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ */
+
+int ssl3_send_finished(s,a,b,sender,slen)
+SSL *s;
+int a;
+int b;
+unsigned char *sender;
+int slen;
+	{
+	unsigned char *p,*d;
+	int i;
+	unsigned long l;
+
+	if (s->state == a)
+		{
+		d=(unsigned char *)s->init_buf->data;
+		p= &(d[4]);
+
+		i=s->method->ssl3_enc->final_finish_mac(s,
+			&(s->s3->finish_dgst1),
+			&(s->s3->finish_dgst2),
+			sender,slen,p);
+		p+=i;
+		l=i;
+
+		*(d++)=SSL3_MT_FINISHED;
+		l2n3(l,d);
+		s->init_num=(int)l+4;
+		s->init_off=0;
+
+		s->state=b;
+		}
+
+	/* SSL3_ST_SEND_xxxxxx_HELLO_B */
+	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+	}
+
+int ssl3_get_finished(s,a,b)
+SSL *s;
+int a;
+int b;
+	{
+	int al,i,ok;
+	long n;
+	unsigned char *p;
+
+	/* the mac has already been generated when we received the
+	 * change cipher spec message and is in s->s3->tmp.in_dgst[12]
+	 */ 
+
+	n=ssl3_get_message(s,
+		a,
+		b,
+		SSL3_MT_FINISHED,
+		64, /* should actually be 36+4 :-) */
+		&ok);
+
+	if (!ok) return((int)n);
+
+	/* If this occurs if we has missed a message */
+	if (!s->s3->change_cipher_spec)
+		{
+		al=SSL_AD_UNEXPECTED_MESSAGE;
+		SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
+		goto f_err;
+		}
+	s->s3->change_cipher_spec=0;
+
+	p=(unsigned char *)s->init_buf->data;
+
+	i=s->method->ssl3_enc->finish_mac_length;
+
+	if (i != n)
+		{
+		al=SSL_AD_DECODE_ERROR;
+		SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
+		goto f_err;
+		}
+
+	if (memcmp(  p,    (char *)&(s->s3->tmp.finish_md[0]),i) != 0)
+		{
+		al=SSL_AD_DECRYPT_ERROR;
+		SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
+		goto f_err;
+		}
+
+	return(1);
+f_err:
+	ssl3_send_alert(s,SSL3_AL_FATAL,al);
+	return(0);
+	}
+
+/* for these 2 messages, we need to
+ * ssl->enc_read_ctx			re-init
+ * ssl->s3->read_sequence		zero
+ * ssl->s3->read_mac_secret		re-init
+ * ssl->session->read_sym_enc		assign
+ * ssl->session->read_compression	assign
+ * ssl->session->read_hash		assign
+ */
+int ssl3_send_change_cipher_spec(s,a,b)
+SSL *s;
+int a,b;
+	{ 
+	unsigned char *p;
+
+	if (s->state == a)
+		{
+		p=(unsigned char *)s->init_buf->data;
+		*p=SSL3_MT_CCS;
+		s->init_num=1;
+		s->init_off=0;
+
+		s->state=b;
+		}
+
+	/* SSL3_ST_CW_CHANGE_B */
+	return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
+	}
+
+unsigned long ssl3_output_cert_chain(s,x)
+SSL *s;
+X509 *x;
+	{
+	unsigned char *p;
+	int n,i;
+	unsigned long l=7;
+	BUF_MEM *buf;
+	X509_STORE_CTX xs_ctx;
+	X509_OBJECT obj;
+
+	/* TLSv1 sends a chain with nothing in it, instead of an alert */
+	buf=s->init_buf;
+	if (!BUF_MEM_grow(buf,(int)(10)))
+		{
+		SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+		return(0);
+		}
+	if (x != NULL)
+		{
+		X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL);
+
+		for (;;)
+			{
+			n=i2d_X509(x,NULL);
+			if (!BUF_MEM_grow(buf,(int)(n+l+3)))
+				{
+				SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+				return(0);
+				}
+			p=(unsigned char *)&(buf->data[l]);
+			l2n3(n,p);
+			i2d_X509(x,&p);
+			l+=n+3;
+			if (X509_NAME_cmp(X509_get_subject_name(x),
+				X509_get_issuer_name(x)) == 0) break;
+
+			i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
+				X509_get_issuer_name(x),&obj);
+			if (i <= 0) break;
+			x=obj.data.x509;
+			/* Count is one too high since the X509_STORE_get uped the
+			 * ref count */
+			X509_free(x);
+			}
+
+		X509_STORE_CTX_cleanup(&xs_ctx);
+		}
+
+	l-=7;
+	p=(unsigned char *)&(buf->data[4]);
+	l2n3(l,p);
+	l+=3;
+	p=(unsigned char *)&(buf->data[0]);
+	*(p++)=SSL3_MT_CERTIFICATE;
+	l2n3(l,p);
+	l+=4;
+	return(l);
+	}
+
+long ssl3_get_message(s,st1,stn,mt,max,ok)
+SSL *s;
+int st1,stn,mt;
+long max;
+int *ok;
+	{
+	unsigned char *p;
+	unsigned long l;
+	long n;
+	int i,al;
+
+	if (s->s3->tmp.reuse_message)
+		{
+		s->s3->tmp.reuse_message=0;
+		if ((mt >= 0) && (s->s3->tmp.message_type != mt))
+			{
+			al=SSL_AD_UNEXPECTED_MESSAGE;
+			SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
+			goto f_err;
+			}
+		*ok=1;
+		return((int)s->s3->tmp.message_size);
+		}
+
+	p=(unsigned char *)s->init_buf->data;
+
+	if (s->state == st1)
+		{
+		i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
+			(char *)&(p[s->init_num]),
+			4-s->init_num);
+		if (i < (4-s->init_num))
+			{
+			*ok=0;
+			return(ssl3_part_read(s,i));
+			}
+
+		if ((mt >= 0) && (*p != mt))
+			{
+			al=SSL_AD_UNEXPECTED_MESSAGE;
+			SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
+			goto f_err;
+			}
+		s->s3->tmp.message_type= *(p++);
+
+		n2l3(p,l);
+		if (l > (unsigned long)max)
+			{
+			al=SSL_AD_ILLEGAL_PARAMETER;
+			SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+			goto f_err;
+			}
+		if (l && !BUF_MEM_grow(s->init_buf,(int)l))
+			{
+			SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
+			goto err;
+			}
+		s->s3->tmp.message_size=l;
+		s->state=stn;
+
+		s->init_num=0;
+		}
+
+	/* next state (stn) */
+	p=(unsigned char *)s->init_buf->data;
+	n=s->s3->tmp.message_size;
+	if (n > 0)
+		{
+		i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
+			(char *)&(p[s->init_num]),(int)n);
+		if (i != (int)n)
+			{
+			*ok=0;
+			return(ssl3_part_read(s,i));
+			}
+		}
+	*ok=1;
+	return(n);
+f_err:
+	ssl3_send_alert(s,SSL3_AL_FATAL,al);
+err:
+	*ok=0;
+	return(-1);
+	}
+
+int ssl_cert_type(x,pkey)
+X509 *x;
+EVP_PKEY *pkey;
+	{
+	EVP_PKEY *pk;
+	int ret= -1,i,j;
+
+	if (pkey == NULL)
+		pk=X509_get_pubkey(x);
+	else
+		pk=pkey;
+	if (pk == NULL) goto err;
+
+	i=pk->type;
+	if (i == EVP_PKEY_RSA)
+		{
+		ret=SSL_PKEY_RSA_ENC;
+		if (x != NULL)
+			{
+			j=X509_get_ext_count(x);
+			/* check to see if this is a signing only certificate */
+			/* EAY EAY EAY EAY */
+			}
+		}
+	else if (i == EVP_PKEY_DSA)
+		{
+		ret=SSL_PKEY_DSA_SIGN;
+		}
+	else if (i == EVP_PKEY_DH)
+		{
+		/* if we just have a key, we needs to be guess */
+
+		if (x == NULL)
+			ret=SSL_PKEY_DH_DSA;
+		else
+			{
+			j=X509_get_signature_type(x);
+			if (j == EVP_PKEY_RSA)
+				ret=SSL_PKEY_DH_RSA;
+			else if (j== EVP_PKEY_DSA)
+				ret=SSL_PKEY_DH_DSA;
+			else ret= -1;
+			}
+		}
+	else
+		ret= -1;
+
+err:
+	return(ret);
+	}
+
+int ssl_verify_alarm_type(type)
+long type;
+	{
+	int al;
+
+	switch(type)
+		{
+	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
+	case X509_V_ERR_UNABLE_TO_GET_CRL:
+		al=SSL_AD_UNKNOWN_CA;
+		break;
+	case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
+	case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
+	case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
+	case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
+	case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
+	case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
+	case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
+	case X509_V_ERR_CERT_NOT_YET_VALID:
+	case X509_V_ERR_CRL_NOT_YET_VALID:
+		al=SSL_AD_BAD_CERTIFICATE;
+		break;
+	case X509_V_ERR_CERT_SIGNATURE_FAILURE:
+	case X509_V_ERR_CRL_SIGNATURE_FAILURE:
+		al=SSL_AD_DECRYPT_ERROR;
+		break;
+	case X509_V_ERR_CERT_HAS_EXPIRED:
+	case X509_V_ERR_CRL_HAS_EXPIRED:
+		al=SSL_AD_CERTIFICATE_EXPIRED;
+		break;
+	case X509_V_ERR_CERT_REVOKED:
+		al=SSL_AD_CERTIFICATE_REVOKED;
+		break;
+	case X509_V_ERR_OUT_OF_MEM:
+		al=SSL_AD_INTERNAL_ERROR;
+		break;
+	case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
+	case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
+	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
+	case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
+	case X509_V_ERR_CERT_CHAIN_TOO_LONG:
+		al=SSL_AD_UNKNOWN_CA;
+		break;
+	case X509_V_ERR_APPLICATION_VERIFICATION:
+		al=SSL_AD_HANDSHAKE_FAILURE;
+		break;
+	default:
+		al=SSL_AD_CERTIFICATE_UNKNOWN;
+		break;
+		}
+	return(al);
+	}
+
+int ssl3_setup_buffers(s)
+SSL *s;
+	{
+	unsigned char *p;
+	unsigned int extra;
+
+	if (s->s3->rbuf.buf == NULL)
+		{
+		if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
+			extra=SSL3_RT_MAX_EXTRA;
+		else
+			extra=0;
+		if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE+extra))
+			== NULL)
+			goto err;
+		s->s3->rbuf.buf=p;
+		}
+
+	if (s->s3->wbuf.buf == NULL)
+		{
+		if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE))
+			== NULL)
+			goto err;
+		s->s3->wbuf.buf=p;
+		}
+	s->packet= &(s->s3->rbuf.buf[0]);
+	return(1);
+err:
+	SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
+	return(0);
+	}