sl@0: /* v3_pci.c -*- mode:C; c-file-style: "eay" -*- */
sl@0: /* Contributed to the OpenSSL Project 2004
sl@0:  * by Richard Levitte (richard@levitte.org)
sl@0:  */
sl@0: /* Copyright (c) 2004 Kungliga Tekniska Högskolan
sl@0:  * (Royal Institute of Technology, Stockholm, Sweden).
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  *
sl@0:  * 1. Redistributions of source code must retain the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  *
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  *
sl@0:  * 3. Neither the name of the Institute nor the names of its contributors
sl@0:  *    may be used to endorse or promote products derived from this software
sl@0:  *    without specific prior written permission.
sl@0:  *
sl@0:  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  */
sl@0: /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0: #include <stdio.h>
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/conf.h>
sl@0: #include <openssl/x509v3.h>
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libcrypto_wsd_macros.h"
sl@0: #include "libcrypto_wsd.h"
sl@0: #endif
sl@0: 
sl@0: 
sl@0: static int i2r_pci(X509V3_EXT_METHOD *method, PROXY_CERT_INFO_EXTENSION *ext,
sl@0: 	BIO *out, int indent);
sl@0: static PROXY_CERT_INFO_EXTENSION *r2i_pci(X509V3_EXT_METHOD *method,
sl@0: 	X509V3_CTX *ctx, char *str);
sl@0: #ifndef EMULATOR
sl@0: X509V3_EXT_METHOD v3_pci =
sl@0: 	{ NID_proxyCertInfo, 0, ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
sl@0: 	  0,0,0,0,
sl@0: 	  0,0,
sl@0: 	  NULL, NULL,
sl@0: 	  (X509V3_EXT_I2R)i2r_pci,
sl@0: 	  (X509V3_EXT_R2I)r2i_pci,
sl@0: 	  NULL,
sl@0: 	};
sl@0: #else
sl@0: const X509V3_EXT_METHOD v3_pci =
sl@0: 	{ NID_proxyCertInfo, 0, ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
sl@0: 	  0,0,0,0,
sl@0: 	  0,0,
sl@0: 	  NULL, NULL,
sl@0: 	  (X509V3_EXT_I2R)i2r_pci,
sl@0: 	  (X509V3_EXT_R2I)r2i_pci,
sl@0: 	  NULL,
sl@0: 	};
sl@0: #endif
sl@0: static int i2r_pci(X509V3_EXT_METHOD *method, PROXY_CERT_INFO_EXTENSION *pci,
sl@0: 	BIO *out, int indent)
sl@0: 	{
sl@0: 	BIO_printf(out, "%*sPath Length Constraint: ", indent, "");
sl@0: 	if (pci->pcPathLengthConstraint)
sl@0: 	  i2a_ASN1_INTEGER(out, pci->pcPathLengthConstraint);
sl@0: 	else
sl@0: 	  BIO_printf(out, "infinite");
sl@0: 	BIO_puts(out, "\n");
sl@0: 	BIO_printf(out, "%*sPolicy Language: ", indent, "");
sl@0: 	i2a_ASN1_OBJECT(out, pci->proxyPolicy->policyLanguage);
sl@0: 	BIO_puts(out, "\n");
sl@0: 	if (pci->proxyPolicy->policy && pci->proxyPolicy->policy->data)
sl@0: 	  BIO_printf(out, "%*sPolicy Text: %s\n", indent, "",
sl@0: 		     pci->proxyPolicy->policy->data);
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: static int process_pci_value(CONF_VALUE *val,
sl@0: 	ASN1_OBJECT **language, ASN1_INTEGER **pathlen,
sl@0: 	ASN1_OCTET_STRING **policy)
sl@0: 	{
sl@0: 	int free_policy = 0;
sl@0: 
sl@0: 	if (strcmp(val->name, "language") == 0)
sl@0: 		{
sl@0: 		if (*language)
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_POLICY_LANGUAGE_ALREADTY_DEFINED);
sl@0: 			X509V3_conf_err(val);
sl@0: 			return 0;
sl@0: 			}
sl@0: 		if (!(*language = OBJ_txt2obj(val->value, 0)))
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_INVALID_OBJECT_IDENTIFIER);
sl@0: 			X509V3_conf_err(val);
sl@0: 			return 0;
sl@0: 			}
sl@0: 		}
sl@0: 	else if (strcmp(val->name, "pathlen") == 0)
sl@0: 		{
sl@0: 		if (*pathlen)
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_POLICY_PATH_LENGTH_ALREADTY_DEFINED);
sl@0: 			X509V3_conf_err(val);
sl@0: 			return 0;
sl@0: 			}
sl@0: 		if (!X509V3_get_value_int(val, pathlen))
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_POLICY_PATH_LENGTH);
sl@0: 			X509V3_conf_err(val);
sl@0: 			return 0;
sl@0: 			}
sl@0: 		}
sl@0: 	else if (strcmp(val->name, "policy") == 0)
sl@0: 		{
sl@0: 		unsigned char *tmp_data = NULL;
sl@0: 		long val_len;
sl@0: 		if (!*policy)
sl@0: 			{
sl@0: 			*policy = ASN1_OCTET_STRING_new();
sl@0: 			if (!*policy)
sl@0: 				{
sl@0: 				X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_MALLOC_FAILURE);
sl@0: 				X509V3_conf_err(val);
sl@0: 				return 0;
sl@0: 				}
sl@0: 			free_policy = 1;
sl@0: 			}
sl@0: 		if (strncmp(val->value, "hex:", 4) == 0)
sl@0: 			{
sl@0: 			unsigned char *tmp_data2 =
sl@0: 				string_to_hex(val->value + 4, &val_len);
sl@0: 
sl@0: 			if (!tmp_data2) goto err;
sl@0: 
sl@0: 			tmp_data = OPENSSL_realloc((*policy)->data,
sl@0: 				(*policy)->length + val_len + 1);
sl@0: 			if (tmp_data)
sl@0: 				{
sl@0: 				(*policy)->data = tmp_data;
sl@0: 				memcpy(&(*policy)->data[(*policy)->length],
sl@0: 					tmp_data2, val_len);
sl@0: 				(*policy)->length += val_len;
sl@0: 				(*policy)->data[(*policy)->length] = '\0';
sl@0: 				}
sl@0: 			}
sl@0: 		else if (strncmp(val->value, "file:", 5) == 0)
sl@0: 			{
sl@0: #ifndef SYMBIAN			
sl@0: 			unsigned char buf[2048];
sl@0: #else
sl@0:       unsigned char buf[1024];
sl@0: #endif			
sl@0: 			int n;
sl@0: 			BIO *b = BIO_new_file(val->value + 5, "r");
sl@0: 			if (!b)
sl@0: 				{
sl@0: 				X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_BIO_LIB);
sl@0: 				X509V3_conf_err(val);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			while((n = BIO_read(b, buf, sizeof(buf))) > 0
sl@0: 				|| (n == 0 && BIO_should_retry(b)))
sl@0: 				{
sl@0: 				if (!n) continue;
sl@0: 
sl@0: 				tmp_data = OPENSSL_realloc((*policy)->data,
sl@0: 					(*policy)->length + n + 1);
sl@0: 
sl@0: 				if (!tmp_data)
sl@0: 					break;
sl@0: 
sl@0: 				(*policy)->data = tmp_data;
sl@0: 				memcpy(&(*policy)->data[(*policy)->length],
sl@0: 					buf, n);
sl@0: 				(*policy)->length += n;
sl@0: 				(*policy)->data[(*policy)->length] = '\0';
sl@0: 				}
sl@0: 
sl@0: 			if (n < 0)
sl@0: 				{
sl@0: 				X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_BIO_LIB);
sl@0: 				X509V3_conf_err(val);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			}
sl@0: 		else if (strncmp(val->value, "text:", 5) == 0)
sl@0: 			{
sl@0: 			val_len = strlen(val->value + 5);
sl@0: 			tmp_data = OPENSSL_realloc((*policy)->data,
sl@0: 				(*policy)->length + val_len + 1);
sl@0: 			if (tmp_data)
sl@0: 				{
sl@0: 				(*policy)->data = tmp_data;
sl@0: 				memcpy(&(*policy)->data[(*policy)->length],
sl@0: 					val->value + 5, val_len);
sl@0: 				(*policy)->length += val_len;
sl@0: 				(*policy)->data[(*policy)->length] = '\0';
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_INCORRECT_POLICY_SYNTAX_TAG);
sl@0: 			X509V3_conf_err(val);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		if (!tmp_data)
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_MALLOC_FAILURE);
sl@0: 			X509V3_conf_err(val);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		}
sl@0: 	return 1;
sl@0: err:
sl@0: 	if (free_policy)
sl@0: 		{
sl@0: 		ASN1_OCTET_STRING_free(*policy);
sl@0: 		*policy = NULL;
sl@0: 		}
sl@0: 	return 0;
sl@0: 	}
sl@0: 
sl@0: static PROXY_CERT_INFO_EXTENSION *r2i_pci(X509V3_EXT_METHOD *method,
sl@0: 	X509V3_CTX *ctx, char *value)
sl@0: 	{
sl@0: 	PROXY_CERT_INFO_EXTENSION *pci = NULL;
sl@0: 	STACK_OF(CONF_VALUE) *vals;
sl@0: 	ASN1_OBJECT *language = NULL;
sl@0: 	ASN1_INTEGER *pathlen = NULL;
sl@0: 	ASN1_OCTET_STRING *policy = NULL;
sl@0: 	int i, j;
sl@0: 
sl@0: 	vals = X509V3_parse_list(value);
sl@0: 	for (i = 0; i < sk_CONF_VALUE_num(vals); i++)
sl@0: 		{
sl@0: 		CONF_VALUE *cnf = sk_CONF_VALUE_value(vals, i);
sl@0: 		if (!cnf->name || (*cnf->name != '@' && !cnf->value))
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_R2I_PCI,X509V3_R_INVALID_PROXY_POLICY_SETTING);
sl@0: 			X509V3_conf_err(cnf);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		if (*cnf->name == '@')
sl@0: 			{
sl@0: 			STACK_OF(CONF_VALUE) *sect;
sl@0: 			int success_p = 1;
sl@0: 
sl@0: 			sect = X509V3_get_section(ctx, cnf->name + 1);
sl@0: 			if (!sect)
sl@0: 				{
sl@0: 				X509V3err(X509V3_F_R2I_PCI,X509V3_R_INVALID_SECTION);
sl@0: 				X509V3_conf_err(cnf);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			for (j = 0; success_p && j < sk_CONF_VALUE_num(sect); j++)
sl@0: 				{
sl@0: 				success_p =
sl@0: 					process_pci_value(sk_CONF_VALUE_value(sect, j),
sl@0: 						&language, &pathlen, &policy);
sl@0: 				}
sl@0: 			X509V3_section_free(ctx, sect);
sl@0: 			if (!success_p)
sl@0: 				goto err;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			if (!process_pci_value(cnf,
sl@0: 					&language, &pathlen, &policy))
sl@0: 				{
sl@0: 				X509V3_conf_err(cnf);
sl@0: 				goto err;
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	/* Language is mandatory */
sl@0: 	if (!language)
sl@0: 		{
sl@0: 		X509V3err(X509V3_F_R2I_PCI,X509V3_R_NO_PROXY_CERT_POLICY_LANGUAGE_DEFINED);
sl@0: 		goto err;
sl@0: 		}
sl@0: 	i = OBJ_obj2nid(language);
sl@0: 	if ((i == NID_Independent || i == NID_id_ppl_inheritAll) && policy)
sl@0: 		{
sl@0: 		X509V3err(X509V3_F_R2I_PCI,X509V3_R_POLICY_WHEN_PROXY_LANGUAGE_REQUIRES_NO_POLICY);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	pci = PROXY_CERT_INFO_EXTENSION_new();
sl@0: 	if (!pci)
sl@0: 		{
sl@0: 		X509V3err(X509V3_F_R2I_PCI,ERR_R_MALLOC_FAILURE);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	pci->proxyPolicy->policyLanguage = language; language = NULL;
sl@0: 	pci->proxyPolicy->policy = policy; policy = NULL;
sl@0: 	pci->pcPathLengthConstraint = pathlen; pathlen = NULL;
sl@0: 	goto end;
sl@0: err:
sl@0: 	if (language) { ASN1_OBJECT_free(language); language = NULL; }
sl@0: 	if (pathlen) { ASN1_INTEGER_free(pathlen); pathlen = NULL; }
sl@0: 	if (policy) { ASN1_OCTET_STRING_free(policy); policy = NULL; }
sl@0: 	if (pci) { PROXY_CERT_INFO_EXTENSION_free(pci); pci = NULL; }
sl@0: end:
sl@0: 	sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
sl@0: 	return pci;
sl@0: 	}