Import of old SSLeay release: SSLeay 0.8.1b

1 files changed, 439 insertions, 0 deletions

diff --git a/crypto/x509/x509_lu.c b/crypto/x509/x509_lu.c
new file mode 100644
index 0000000000..455ad5af45
--- /dev/null
+++ b/crypto/x509/x509_lu.c
@@ -0,0 +1,439 @@
+/* crypto/x509/x509_lu.c */
+/* Copyright (C) 1995-1997 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 "cryptlib.h"
+#include "lhash.h"
+#include "x509.h"
+
+X509_LOOKUP *X509_LOOKUP_new(method)
+X509_LOOKUP_METHOD *method;
+	{
+	X509_LOOKUP *ret;
+
+	ret=(X509_LOOKUP *)Malloc(sizeof(X509_LOOKUP));
+	if (ret == NULL) return(NULL);
+
+	ret->init=0;
+	ret->skip=0;
+	ret->method=method;
+	ret->method_data=NULL;
+	ret->store_ctx=NULL;
+	if ((method->new_item != NULL) && !method->new_item(ret))
+		{
+		Free(ret);
+		return(NULL);
+		}
+	return(ret);
+	}
+
+void X509_LOOKUP_free(ctx)
+X509_LOOKUP *ctx;
+	{
+	if (ctx == NULL) return;
+	if (	(ctx->method != NULL) &&
+		(ctx->method->free != NULL))
+		ctx->method->free(ctx);
+	Free(ctx);
+	}
+
+int X509_LOOKUP_init(ctx)
+X509_LOOKUP *ctx;
+	{
+	if (ctx->method == NULL) return(0);
+	if (ctx->method->init != NULL)
+		return(ctx->method->init(ctx));
+	else
+		return(1);
+	}
+
+int X509_LOOKUP_shutdown(ctx)
+X509_LOOKUP *ctx;
+	{
+	if (ctx->method == NULL) return(0);
+	if (ctx->method->init != NULL)
+		return(ctx->method->shutdown(ctx));
+	else
+		return(1);
+	}
+
+int X509_LOOKUP_ctrl(ctx,cmd,argc,argl,ret)
+X509_LOOKUP *ctx;
+int cmd;
+char *argc;
+long argl;
+char **ret;
+	{
+	if (ctx->method == NULL) return(-1);
+	if (ctx->method->ctrl != NULL)
+		return(ctx->method->ctrl(ctx,cmd,argc,argl,ret));
+	else
+		return(1);
+	}
+
+int X509_LOOKUP_by_subject(ctx,type,name,ret)
+X509_LOOKUP *ctx;
+int type;
+X509_NAME *name;
+X509_OBJECT *ret;
+	{
+	if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
+		return(X509_LU_FAIL);
+	if (ctx->skip) return(0);
+	return(ctx->method->get_by_subject(ctx,type,name,ret));
+	}
+
+int X509_LOOKUP_by_issuer_serial(ctx,type,name,serial,ret)
+X509_LOOKUP *ctx;
+int type;
+X509_NAME *name;
+ASN1_INTEGER *serial;
+X509_OBJECT *ret;
+	{
+	if ((ctx->method == NULL) ||
+		(ctx->method->get_by_issuer_serial == NULL))
+		return(X509_LU_FAIL);
+	return(ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret));
+	}
+
+int X509_LOOKUP_by_fingerprint(ctx,type,bytes,len,ret)
+X509_LOOKUP *ctx;
+int type;
+unsigned char *bytes;
+int len;
+X509_OBJECT *ret;
+	{
+	if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
+		return(X509_LU_FAIL);
+	return(ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret));
+	}
+
+int X509_LOOKUP_by_alias(ctx,type,str,len,ret)
+X509_LOOKUP *ctx;
+int type;
+char *str;
+int len;
+X509_OBJECT *ret;
+	{
+	if ((ctx->method == NULL) || (ctx->method->get_by_alias))
+		return(X509_LU_FAIL);
+	return(ctx->method->get_by_alias(ctx,str,len,ret));
+	}
+
+static unsigned long x509_object_hash(a)
+X509_OBJECT *a;
+	{
+	unsigned long h;
+
+	switch (a->type)
+		{
+	case X509_LU_X509:
+		h=X509_NAME_hash(a->data.x509->cert_info->subject);
+		break;
+	case X509_LU_CRL:
+		h=X509_NAME_hash(a->data.crl->crl->issuer);
+		break;
+	default:
+		abort();
+		}
+	return(h);
+	}
+
+static int x509_object_cmp(a,b)
+X509_OBJECT *a,*b;
+	{
+	int ret;
+
+	ret=(a->type - b->type);
+	if (ret) return(ret);
+	switch (a->type)
+		{
+	case X509_LU_X509:
+		ret=X509_subject_name_cmp(a->data.x509,b->data.x509);
+		break;
+	case X509_LU_CRL:
+		ret=X509_CRL_cmp(a->data.crl,b->data.crl);
+		break;
+	default:
+		abort();
+		}
+	return(ret);
+	}
+
+X509_STORE *X509_STORE_new()
+	{
+	X509_STORE *ret;
+
+	if ((ret=(X509_STORE *)Malloc(sizeof(X509_STORE))) == NULL)
+		return(NULL);
+	ret->certs=lh_new(x509_object_hash,x509_object_cmp);
+	ret->cache=1;
+	ret->get_cert_methods=sk_new_null();
+	ret->verify=NULL;
+	ret->verify_cb=NULL;
+	ret->app_data=NULL;
+	ret->references=1;
+	return(ret);
+	}
+
+static void cleanup(a)
+X509_OBJECT *a;
+	{
+	if (a->type == X509_LU_X509)
+		{
+		X509_free(a->data.x509);
+		}
+	else if (a->type == X509_LU_CRL)
+		{
+		X509_CRL_free(a->data.crl);
+		}
+	else
+		abort();
+
+	Free(a);
+	}
+
+void X509_STORE_free(vfy)
+X509_STORE *vfy;
+	{
+	int i;
+	STACK *sk;
+	X509_LOOKUP *lu;
+
+	sk=vfy->get_cert_methods;
+	for (i=0; i<sk_num(sk); i++)
+		{
+		lu=(X509_LOOKUP *)sk_value(sk,i);
+		X509_LOOKUP_shutdown(lu);
+		X509_LOOKUP_free(lu);
+		}
+	sk_free(sk);
+
+	lh_doall(vfy->certs,cleanup);
+	lh_free(vfy->certs);
+	Free(vfy);
+	}
+
+X509_LOOKUP *X509_STORE_add_lookup(v,m)
+X509_STORE *v;
+X509_LOOKUP_METHOD *m;
+	{
+	int i;
+	STACK *sk;
+	X509_LOOKUP *lu;
+
+	sk=v->get_cert_methods;
+	for (i=0; i<sk_num(sk); i++)
+		{
+		lu=(X509_LOOKUP *)sk_value(sk,i);
+		if (m == lu->method)
+			{
+			return(lu);
+			}
+		}
+	/* a new one */
+	lu=X509_LOOKUP_new(m);
+	if (lu == NULL)
+		return(NULL);
+	else
+		{
+		lu->store_ctx=v;
+		if (sk_push(v->get_cert_methods,(char *)lu))
+			return(lu);
+		else
+			{
+			X509_LOOKUP_free(lu);
+			return(NULL);
+			}
+		}
+	}
+
+int X509_STORE_get_by_subject(vs,type,name,ret)
+X509_STORE_CTX *vs;
+int type;
+X509_NAME *name;
+X509_OBJECT *ret;
+	{
+	X509_STORE *ctx=vs->ctx;
+	X509_LOOKUP *lu;
+	X509_OBJECT stmp,*tmp;
+	int i,j;
+
+	tmp=X509_OBJECT_retrive_by_subject(ctx->certs,type,name);
+
+	if (tmp == NULL)
+		{
+		for (i=vs->current_method; i<sk_num(ctx->get_cert_methods); i++)
+			{
+			lu=(X509_LOOKUP *)sk_value(ctx->get_cert_methods,i);
+			j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
+			if (j < 0)
+				{
+				vs->current_method=j;
+				return(j);
+				}
+			else if (j)
+				{
+				tmp= &stmp;
+				break;
+				}
+			}
+		vs->current_method=0;
+		if (tmp == NULL)
+			return(0);
+		}
+
+/*	if (ret->data.ptr != NULL)
+		X509_OBJECT_free_contents(ret); */
+
+	ret->type=tmp->type;
+	ret->data.ptr=tmp->data.ptr;
+
+	X509_OBJECT_up_ref_count(ret);
+
+	return(1);
+	}
+
+void X509_OBJECT_up_ref_count(a)
+X509_OBJECT *a;
+	{
+	switch (a->type)
+		{
+	case X509_LU_X509:
+		CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
+		break;
+	case X509_LU_CRL:
+		CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
+		break;
+		}
+	}
+
+void X509_OBJECT_free_contents(a)
+X509_OBJECT *a;
+	{
+	switch (a->type)
+		{
+	case X509_LU_X509:
+		X509_free(a->data.x509);
+		break;
+	case X509_LU_CRL:
+		X509_CRL_free(a->data.crl);
+		break;
+		}
+	}
+
+X509_OBJECT *X509_OBJECT_retrive_by_subject(h,type,name)
+LHASH *h;
+int type;
+X509_NAME *name;
+	{
+	X509_OBJECT stmp,*tmp;
+	X509 x509_s;
+	X509_CINF cinf_s;
+	X509_CRL crl_s;
+	X509_CRL_INFO crl_info_s;
+
+	stmp.type=type;
+	switch (type)
+		{
+	case X509_LU_X509:
+		stmp.data.x509= &x509_s;
+		x509_s.cert_info= &cinf_s;
+		cinf_s.subject=name;
+		break;
+	case X509_LU_CRL:
+		stmp.data.crl= &crl_s;
+		crl_s.crl= &crl_info_s;
+		crl_info_s.issuer=name;
+		break;
+	default:
+		abort();
+		}
+
+	tmp=(X509_OBJECT *)lh_retrieve(h,(char *)&stmp);
+	return(tmp);
+	}
+
+void X509_STORE_CTX_init(ctx,store,x509,chain)
+X509_STORE_CTX *ctx;
+X509_STORE *store;
+X509 *x509;
+STACK *chain;
+	{
+	ctx->ctx=store;
+	ctx->current_method=0;
+	ctx->cert=x509;
+	ctx->untrusted=chain;
+	ctx->last_untrusted=0;
+	ctx->valid=0;
+	ctx->chain=NULL;
+	ctx->depth=10;
+	ctx->error=0;
+	ctx->current_cert=NULL;
+	}
+
+void X509_STORE_CTX_cleanup(ctx)
+X509_STORE_CTX *ctx;
+	{
+	if (ctx->chain != NULL)
+		{
+		sk_pop_free(ctx->chain,X509_free);
+		ctx->chain=NULL;
+		}
+	}
+