X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=ssl%2Fssl_asn1.c;h=0f9a3489dd0227353723a6a4b61b6209e4251112;hb=1f9a1285199953092381a1ae80d0da2eaf4bebb0;hp=fa6456e4f5e8915f4f4d616845e38adac2ba4052;hpb=26a3a48d65c7464b400ec1de439994d7f0d25fed;p=oweals%2Fopenssl.git

diff --git a/ssl/ssl_asn1.c b/ssl/ssl_asn1.c
index fa6456e4f5..0f9a3489dd 100644
--- a/ssl/ssl_asn1.c
+++ b/ssl/ssl_asn1.c
@@ -58,10 +58,10 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include "ssl_locl.h"
 #include <openssl/asn1_mac.h>
 #include <openssl/objects.h>
 #include <openssl/x509.h>
-#include "ssl_locl.h"
 
 typedef struct ssl_session_asn1_st
 	{
@@ -72,9 +72,17 @@ typedef struct ssl_session_asn1_st
 	ASN1_OCTET_STRING session_id;
 	ASN1_OCTET_STRING session_id_context;
 	ASN1_OCTET_STRING key_arg;
+#ifndef OPENSSL_NO_KRB5
+        ASN1_OCTET_STRING krb5_princ;
+#endif /* OPENSSL_NO_KRB5 */
 	ASN1_INTEGER time;
 	ASN1_INTEGER timeout;
 	ASN1_INTEGER verify_result;
+#ifndef OPENSSL_NO_TLSEXT
+	ASN1_OCTET_STRING tlsext_hostname;
+	ASN1_INTEGER tlsext_tick_lifetime;
+	ASN1_OCTET_STRING tlsext_tick;
+#endif /* OPENSSL_NO_TLSEXT */
 	} SSL_SESSION_ASN1;
 
 int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
@@ -83,6 +91,10 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
 	int v1=0,v2=0,v3=0,v4=0,v5=0;
 	unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2];
 	unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2],ibuf5[LSIZE2];
+#ifndef OPENSSL_NO_TLSEXT
+	int v6=0,v9=0,v10=0;
+	unsigned char ibuf6[LSIZE2];
+#endif
 	long l;
 	SSL_SESSION_ASN1 a;
 	M_ASN1_I2D_vars(in);
@@ -142,6 +154,15 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
 	a.key_arg.type=V_ASN1_OCTET_STRING;
 	a.key_arg.data=in->key_arg;
 
+#ifndef OPENSSL_NO_KRB5
+	if (in->krb5_client_princ_len)
+		{
+		a.krb5_princ.length=in->krb5_client_princ_len;
+		a.krb5_princ.type=V_ASN1_OCTET_STRING;
+		a.krb5_princ.data=in->krb5_client_princ;
+		}
+#endif /* OPENSSL_NO_KRB5 */
+ 
 	if (in->time != 0L)
 		{
 		a.time.length=LSIZE2;
@@ -166,11 +187,42 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
 		ASN1_INTEGER_set(&a.verify_result,in->verify_result);
 		}
 
+#ifndef OPENSSL_NO_TLSEXT
+	if (in->tlsext_hostname)
+                {
+                a.tlsext_hostname.length=strlen(in->tlsext_hostname);
+                a.tlsext_hostname.type=V_ASN1_OCTET_STRING;
+                a.tlsext_hostname.data=(unsigned char *)in->tlsext_hostname;
+                }
+	if (in->tlsext_tick)
+                {
+                a.tlsext_tick.length= in->tlsext_ticklen;
+                a.tlsext_tick.type=V_ASN1_OCTET_STRING;
+                a.tlsext_tick.data=(unsigned char *)in->tlsext_tick;
+		/* If we have a ticket set session ID to empty because
+		 * it will be bogus. If liftime hint is -1 treat as a special
+		 * case because the session is being used as a container
+		 */
+		if (in->tlsext_ticklen && (in->tlsext_tick_lifetime_hint != -1))
+			a.session_id.length=0;
+                }
+	if (in->tlsext_tick_lifetime_hint > 0)
+		{
+		a.tlsext_tick_lifetime.length=LSIZE2;
+		a.tlsext_tick_lifetime.type=V_ASN1_INTEGER;
+		a.tlsext_tick_lifetime.data=ibuf6;
+		ASN1_INTEGER_set(&a.tlsext_tick_lifetime,in->tlsext_tick_lifetime_hint);
+		}
+#endif /* OPENSSL_NO_TLSEXT */
 	M_ASN1_I2D_len(&(a.version),		i2d_ASN1_INTEGER);
 	M_ASN1_I2D_len(&(a.ssl_version),	i2d_ASN1_INTEGER);
 	M_ASN1_I2D_len(&(a.cipher),		i2d_ASN1_OCTET_STRING);
 	M_ASN1_I2D_len(&(a.session_id),		i2d_ASN1_OCTET_STRING);
 	M_ASN1_I2D_len(&(a.master_key),		i2d_ASN1_OCTET_STRING);
+#ifndef OPENSSL_NO_KRB5
+	if (in->krb5_client_princ_len)
+        	M_ASN1_I2D_len(&(a.krb5_princ),	i2d_ASN1_OCTET_STRING);
+#endif /* OPENSSL_NO_KRB5 */
 	if (in->key_arg_length > 0)
 		M_ASN1_I2D_len_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING);
 	if (in->time != 0L)
@@ -183,6 +235,14 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
 	if (in->verify_result != X509_V_OK)
 		M_ASN1_I2D_len_EXP_opt(&(a.verify_result),i2d_ASN1_INTEGER,5,v5);
 
+#ifndef OPENSSL_NO_TLSEXT
+	if (in->tlsext_tick_lifetime_hint > 0)
+      	 	M_ASN1_I2D_len_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
+	if (in->tlsext_tick)
+        	M_ASN1_I2D_len_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
+	if (in->tlsext_hostname)
+        	M_ASN1_I2D_len_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
+#endif /* OPENSSL_NO_TLSEXT */
 	M_ASN1_I2D_seq_total();
 
 	M_ASN1_I2D_put(&(a.version),		i2d_ASN1_INTEGER);
@@ -190,6 +250,10 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
 	M_ASN1_I2D_put(&(a.cipher),		i2d_ASN1_OCTET_STRING);
 	M_ASN1_I2D_put(&(a.session_id),		i2d_ASN1_OCTET_STRING);
 	M_ASN1_I2D_put(&(a.master_key),		i2d_ASN1_OCTET_STRING);
+#ifndef OPENSSL_NO_KRB5
+	if (in->krb5_client_princ_len)
+        	M_ASN1_I2D_put(&(a.krb5_princ),	i2d_ASN1_OCTET_STRING);
+#endif /* OPENSSL_NO_KRB5 */
 	if (in->key_arg_length > 0)
 		M_ASN1_I2D_put_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING,0);
 	if (in->time != 0L)
@@ -202,10 +266,18 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
 			       v4);
 	if (in->verify_result != X509_V_OK)
 		M_ASN1_I2D_put_EXP_opt(&a.verify_result,i2d_ASN1_INTEGER,5,v5);
+#ifndef OPENSSL_NO_TLSEXT
+	if (in->tlsext_hostname)
+        	M_ASN1_I2D_put_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
+	if (in->tlsext_tick_lifetime_hint > 0)
+      	 	M_ASN1_I2D_put_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
+	if (in->tlsext_tick)
+        	M_ASN1_I2D_put_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
+#endif /* OPENSSL_NO_TLSEXT */
 	M_ASN1_I2D_finish();
 	}
 
-SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, unsigned char **pp,
+SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
 	     long length)
 	{
 	int version,ssl_version=0,i;
@@ -221,18 +293,18 @@ SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, unsigned char **pp,
 	M_ASN1_D2I_start_sequence();
 
 	ai.data=NULL; ai.length=0;
-	M_ASN1_D2I_get(aip,d2i_ASN1_INTEGER);
+	M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
 	version=(int)ASN1_INTEGER_get(aip);
 	if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }
 
 	/* we don't care about the version right now :-) */
-	M_ASN1_D2I_get(aip,d2i_ASN1_INTEGER);
+	M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
 	ssl_version=(int)ASN1_INTEGER_get(aip);
 	ret->ssl_version=ssl_version;
 	if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }
 
 	os.data=NULL; os.length=0;
-	M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING);
+	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
 	if (ssl_version == SSL2_VERSION)
 		{
 		if (os.length != 3)
@@ -245,7 +317,7 @@ SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, unsigned char **pp,
 			((unsigned long)os.data[1]<< 8L)|
 			 (unsigned long)os.data[2];
 		}
-	else if ((ssl_version>>8) == 3)
+	else if ((ssl_version>>8) == SSL3_VERSION_MAJOR)
 		{
 		if (os.length != 2)
 			{
@@ -265,26 +337,48 @@ SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, unsigned char **pp,
 	ret->cipher=NULL;
 	ret->cipher_id=id;
 
-	M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING);
-	if ((ssl_version>>8) == SSL3_VERSION)
+	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
+	if ((ssl_version>>8) == SSL3_VERSION_MAJOR)
 		i=SSL3_MAX_SSL_SESSION_ID_LENGTH;
-	else /* if (ssl_version == SSL2_VERSION) */
+	else /* if (ssl_version>>8 == SSL2_VERSION_MAJOR) */
 		i=SSL2_MAX_SSL_SESSION_ID_LENGTH;
 
 	if (os.length > i)
-		os.length=i;
+		os.length = i;
+	if (os.length > (int)sizeof(ret->session_id)) /* can't happen */
+		os.length = sizeof(ret->session_id);
 
 	ret->session_id_length=os.length;
+	OPENSSL_assert(os.length <= (int)sizeof(ret->session_id));
 	memcpy(ret->session_id,os.data,os.length);
 
-	M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING);
-	if (ret->master_key_length > SSL_MAX_MASTER_KEY_LENGTH)
+	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
+	if (os.length > SSL_MAX_MASTER_KEY_LENGTH)
 		ret->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
 	else
 		ret->master_key_length=os.length;
 	memcpy(ret->master_key,os.data,ret->master_key_length);
 
 	os.length=0;
+
+#ifndef OPENSSL_NO_KRB5
+	os.length=0;
+	M_ASN1_D2I_get_opt(osp,d2i_ASN1_OCTET_STRING,V_ASN1_OCTET_STRING);
+	if (os.data)
+		{
+        	if (os.length > SSL_MAX_KRB5_PRINCIPAL_LENGTH)
+            		ret->krb5_client_princ_len=0;
+		else
+			ret->krb5_client_princ_len=os.length;
+		memcpy(ret->krb5_client_princ,os.data,ret->krb5_client_princ_len);
+		OPENSSL_free(os.data);
+		os.data = NULL;
+		os.length = 0;
+		}
+	else
+		ret->krb5_client_princ_len=0;
+#endif /* OPENSSL_NO_KRB5 */
+
 	M_ASN1_D2I_get_IMP_opt(osp,d2i_ASN1_OCTET_STRING,0,V_ASN1_OCTET_STRING);
 	if (os.length > SSL_MAX_KEY_ARG_LENGTH)
 		ret->key_arg_length=SSL_MAX_KEY_ARG_LENGTH;
@@ -301,7 +395,7 @@ SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, unsigned char **pp,
 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
 		}
 	else
-		ret->time=time(NULL);
+		ret->time=(unsigned long)time(NULL);
 
 	ai.length=0;
 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,2);
@@ -327,9 +421,15 @@ SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, unsigned char **pp,
 	if(os.data != NULL)
 	    {
 	    if (os.length > SSL_MAX_SID_CTX_LENGTH)
+		{
+		ret->sid_ctx_length=os.length;
 		SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_BAD_LENGTH);
-	    ret->sid_ctx_length=os.length;
-	    memcpy(ret->sid_ctx,os.data,os.length);
+		}
+	    else
+		{
+		ret->sid_ctx_length=os.length;
+		memcpy(ret->sid_ctx,os.data,os.length);
+		}
 	    OPENSSL_free(os.data); os.data=NULL; os.length=0;
 	    }
 	else
@@ -345,5 +445,56 @@ SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, unsigned char **pp,
 	else
 		ret->verify_result=X509_V_OK;
 
+#ifndef OPENSSL_NO_TLSEXT
+	os.length=0;
+	os.data=NULL;
+	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,6);
+	if (os.data)
+		{
+		ret->tlsext_hostname = BUF_strndup((char *)os.data, os.length);
+		OPENSSL_free(os.data);
+		os.data = NULL;
+		os.length = 0;
+		}
+	else
+		ret->tlsext_hostname=NULL;
+	ai.length=0;
+	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,9);
+	if (ai.data != NULL)
+		{
+		ret->tlsext_tick_lifetime_hint=ASN1_INTEGER_get(aip);
+		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
+		}
+	else if (ret->tlsext_ticklen && ret->session_id_length)
+		ret->tlsext_tick_lifetime_hint = -1;
+	else
+		ret->tlsext_tick_lifetime_hint = 0;
+ 	os.length=0;
+ 	os.data=NULL;
+  	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,10);
+ 	if (os.data)
+ 		{
+		ret->tlsext_tick = os.data;
+		ret->tlsext_ticklen = os.length;
+ 		os.data = NULL;
+ 		os.length = 0;
+#if 0
+		/* There are two ways to detect a resumed ticket sesion.
+		 * One is to set a random session ID and then the server
+		 * must return a match in ServerHello. This allows the normal
+		 * client session ID matching to work.
+		 */ 
+		if (ret->session_id_length == 0)
+			{
+			ret->session_id_length=SSL3_MAX_SSL_SESSION_ID_LENGTH;
+			RAND_pseudo_bytes(ret->session_id,
+						ret->session_id_length);
+			}
+#endif
+ 		}
+	else
+		ret->tlsext_tick=NULL;
+#endif /* OPENSSL_NO_TLSEXT */
+
 	M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION);
 	}