sl@0: /* crypto/x509/by_dir.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
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:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
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:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0:  /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include <time.h>
sl@0: #include <errno.h>
sl@0: 
sl@0: #include "cryptlib.h"
sl@0: 
sl@0: #ifndef NO_SYS_TYPES_H
sl@0: # include <sys/types.h>
sl@0: #endif
sl@0: #ifdef MAC_OS_pre_X
sl@0: # include <stat.h>
sl@0: #else
sl@0: # include <sys/stat.h>
sl@0: #endif
sl@0: 
sl@0: #include <openssl/lhash.h>
sl@0: #include <openssl/x509.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: typedef struct lookup_dir_st
sl@0: 	{
sl@0: 	BUF_MEM *buffer;
sl@0: 	int num_dirs;
sl@0: 	char **dirs;
sl@0: 	int *dirs_type;
sl@0: 	int num_dirs_alloced;
sl@0: 	} BY_DIR;
sl@0: 
sl@0: static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
sl@0: 	char **ret);
sl@0: static int new_dir(X509_LOOKUP *lu);
sl@0: static void free_dir(X509_LOOKUP *lu);
sl@0: static int add_cert_dir(BY_DIR *ctx,const char *dir,int type);
sl@0: static int get_cert_by_subject(X509_LOOKUP *xl,int type,X509_NAME *name,
sl@0: 	X509_OBJECT *ret);
sl@0: #ifndef EMULATOR	
sl@0: X509_LOOKUP_METHOD x509_dir_lookup=
sl@0: 	{
sl@0: 	"Load certs from files in a directory",
sl@0: 	new_dir,		/* new */
sl@0: 	free_dir,		/* free */
sl@0: 	NULL, 			/* init */
sl@0: 	NULL,			/* shutdown */
sl@0: 	dir_ctrl,		/* ctrl */
sl@0: 	get_cert_by_subject,	/* get_by_subject */
sl@0: 	NULL,			/* get_by_issuer_serial */
sl@0: 	NULL,			/* get_by_fingerprint */
sl@0: 	NULL,			/* get_by_alias */
sl@0: 	};
sl@0: #else
sl@0: GET_GLOBAL_VAR_FROM_TLS(x509_dir_lookup,by_dir,X509_LOOKUP_METHOD)
sl@0: #define x509_dir_lookup (*GET_WSD_VAR_NAME(x509_dir_lookup,by_dir, g)())
sl@0: const X509_LOOKUP_METHOD temp_g_x509_dir_lookup=
sl@0: 	{
sl@0: 	"Load certs from files in a directory",
sl@0: 	new_dir,		/* new */
sl@0: 	free_dir,		/* free */
sl@0: 	NULL, 			/* init */
sl@0: 	NULL,			/* shutdown */
sl@0: 	dir_ctrl,		/* ctrl */
sl@0: 	get_cert_by_subject,	/* get_by_subject */
sl@0: 	NULL,			/* get_by_issuer_serial */
sl@0: 	NULL,			/* get_by_fingerprint */
sl@0: 	NULL,			/* get_by_alias */
sl@0: 	};
sl@0: #endif	
sl@0: 
sl@0: EXPORT_C X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void)
sl@0: 	{
sl@0: 	return(&x509_dir_lookup);
sl@0: 	}
sl@0: 
sl@0: static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
sl@0: 	     char **retp)
sl@0: 	{
sl@0: 	int ret=0;
sl@0: 	BY_DIR *ld;
sl@0: 	char *dir = NULL;
sl@0: 
sl@0: 	ld=(BY_DIR *)ctx->method_data;
sl@0: 
sl@0: 	switch (cmd)
sl@0: 		{
sl@0: 	case X509_L_ADD_DIR:
sl@0: 		if (argl == X509_FILETYPE_DEFAULT)
sl@0: 			{
sl@0: 			dir=(char *)Getenv(X509_get_default_cert_dir_env());
sl@0: 			if (dir)
sl@0: 				ret=add_cert_dir(ld,dir,X509_FILETYPE_PEM);
sl@0: 			else
sl@0: 				ret=add_cert_dir(ld,X509_get_default_cert_dir(),
sl@0: 					X509_FILETYPE_PEM);
sl@0: 			if (!ret)
sl@0: 				{
sl@0: 				X509err(X509_F_DIR_CTRL,X509_R_LOADING_CERT_DIR);
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: 			ret=add_cert_dir(ld,argp,(int)argl);
sl@0: 		break;
sl@0: 		}
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: static int new_dir(X509_LOOKUP *lu)
sl@0: 	{
sl@0: 	BY_DIR *a;
sl@0: 
sl@0: 	if ((a=(BY_DIR *)OPENSSL_malloc(sizeof(BY_DIR))) == NULL)
sl@0: 		return(0);
sl@0: 	if ((a->buffer=BUF_MEM_new()) == NULL)
sl@0: 		{
sl@0: 		OPENSSL_free(a);
sl@0: 		return(0);
sl@0: 		}
sl@0: 	a->num_dirs=0;
sl@0: 	a->dirs=NULL;
sl@0: 	a->dirs_type=NULL;
sl@0: 	a->num_dirs_alloced=0;
sl@0: 	lu->method_data=(char *)a;
sl@0: 	return(1);
sl@0: 	}
sl@0: 
sl@0: static void free_dir(X509_LOOKUP *lu)
sl@0: 	{
sl@0: 	BY_DIR *a;
sl@0: 	int i;
sl@0: 
sl@0: 	a=(BY_DIR *)lu->method_data;
sl@0: 	for (i=0; i<a->num_dirs; i++)
sl@0: 		if (a->dirs[i] != NULL) OPENSSL_free(a->dirs[i]);
sl@0: 	if (a->dirs != NULL) OPENSSL_free(a->dirs);
sl@0: 	if (a->dirs_type != NULL) OPENSSL_free(a->dirs_type);
sl@0: 	if (a->buffer != NULL) BUF_MEM_free(a->buffer);
sl@0: 	OPENSSL_free(a);
sl@0: 	}
sl@0: 
sl@0: static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
sl@0: 	{
sl@0: 	int j,len;
sl@0: 	int *ip;
sl@0: 	const char *s,*ss,*p;
sl@0: 	char **pp;
sl@0: 
sl@0: 	if (dir == NULL || !*dir)
sl@0: 	    {
sl@0: 	    X509err(X509_F_ADD_CERT_DIR,X509_R_INVALID_DIRECTORY);
sl@0: 	    return 0;
sl@0: 	    }
sl@0: 
sl@0: 	s=dir;
sl@0: 	p=s;
sl@0: 	for (;;p++)
sl@0: 		{
sl@0: 		if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0'))
sl@0: 			{
sl@0: 			ss=s;
sl@0: 			s=p+1;
sl@0: 			len=(int)(p-ss);
sl@0: 			if (len == 0) continue;
sl@0: 			for (j=0; j<ctx->num_dirs; j++)
sl@0: 				if (strlen(ctx->dirs[j]) == (size_t)len &&
sl@0: 				    strncmp(ctx->dirs[j],ss,(unsigned int)len) == 0)
sl@0: 					break;
sl@0: 			if (j<ctx->num_dirs)
sl@0: 					continue;
sl@0: 			if (ctx->num_dirs_alloced < (ctx->num_dirs+1))
sl@0: 				{
sl@0: 				ctx->num_dirs_alloced+=10;
sl@0: 				pp=(char **)OPENSSL_malloc(ctx->num_dirs_alloced*
sl@0: 					sizeof(char *));
sl@0: 				ip=(int *)OPENSSL_malloc(ctx->num_dirs_alloced*
sl@0: 					sizeof(int));
sl@0: 				if ((pp == NULL) || (ip == NULL))
sl@0: 					{
sl@0: 					X509err(X509_F_ADD_CERT_DIR,ERR_R_MALLOC_FAILURE);
sl@0: 					return(0);
sl@0: 					}
sl@0: 				memcpy(pp,ctx->dirs,(ctx->num_dirs_alloced-10)*
sl@0: 					sizeof(char *));
sl@0: 				memcpy(ip,ctx->dirs_type,(ctx->num_dirs_alloced-10)*
sl@0: 					sizeof(int));
sl@0: 				if (ctx->dirs != NULL)
sl@0: 					OPENSSL_free(ctx->dirs);
sl@0: 				if (ctx->dirs_type != NULL)
sl@0: 					OPENSSL_free(ctx->dirs_type);
sl@0: 				ctx->dirs=pp;
sl@0: 				ctx->dirs_type=ip;
sl@0: 				}
sl@0: 			ctx->dirs_type[ctx->num_dirs]=type;
sl@0: 			ctx->dirs[ctx->num_dirs]=(char *)OPENSSL_malloc((unsigned int)len+1);
sl@0: 			if (ctx->dirs[ctx->num_dirs] == NULL) return(0);
sl@0: 			strncpy(ctx->dirs[ctx->num_dirs],ss,(unsigned int)len);
sl@0: 			ctx->dirs[ctx->num_dirs][len]='\0';
sl@0: 			ctx->num_dirs++;
sl@0: 			}
sl@0: 		if (*p == '\0') break;
sl@0: 		}
sl@0: 	return(1);
sl@0: 	}
sl@0: 
sl@0: static int get_cert_by_subject(X509_LOOKUP *xl, int type, X509_NAME *name,
sl@0: 	     X509_OBJECT *ret)
sl@0: 	{
sl@0: 	BY_DIR *ctx;
sl@0: 	union	{
sl@0: 		struct	{
sl@0: 			X509 st_x509;
sl@0: 			X509_CINF st_x509_cinf;
sl@0: 			} x509;
sl@0: 		struct	{
sl@0: 			X509_CRL st_crl;
sl@0: 			X509_CRL_INFO st_crl_info;
sl@0: 			} crl;
sl@0: 		} data;
sl@0: 	int ok=0;
sl@0: 	int i,j,k;
sl@0: 	unsigned long h;
sl@0: 	BUF_MEM *b=NULL;
sl@0: 	struct stat st;
sl@0: 	X509_OBJECT stmp,*tmp;
sl@0: 	const char *postfix="";
sl@0: 
sl@0: 	if (name == NULL) return(0);
sl@0: 
sl@0: 	stmp.type=type;
sl@0: 	if (type == X509_LU_X509)
sl@0: 		{
sl@0: 		data.x509.st_x509.cert_info= &data.x509.st_x509_cinf;
sl@0: 		data.x509.st_x509_cinf.subject=name;
sl@0: 		stmp.data.x509= &data.x509.st_x509;
sl@0: 		postfix="";
sl@0: 		}
sl@0: 	else if (type == X509_LU_CRL)
sl@0: 		{
sl@0: 		data.crl.st_crl.crl= &data.crl.st_crl_info;
sl@0: 		data.crl.st_crl_info.issuer=name;
sl@0: 		stmp.data.crl= &data.crl.st_crl;
sl@0: 		postfix="r";
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		X509err(X509_F_GET_CERT_BY_SUBJECT,X509_R_WRONG_LOOKUP_TYPE);
sl@0: 		goto finish;
sl@0: 		}
sl@0: 
sl@0: 	if ((b=BUF_MEM_new()) == NULL)
sl@0: 		{
sl@0: 		X509err(X509_F_GET_CERT_BY_SUBJECT,ERR_R_BUF_LIB);
sl@0: 		goto finish;
sl@0: 		}
sl@0: 	
sl@0: 	ctx=(BY_DIR *)xl->method_data;
sl@0: 
sl@0: 	h=X509_NAME_hash(name);
sl@0: 	for (i=0; i<ctx->num_dirs; i++)
sl@0: 		{
sl@0: 		j=strlen(ctx->dirs[i])+1+8+6+1+1;
sl@0: 		if (!BUF_MEM_grow(b,j))
sl@0: 			{
sl@0: 			X509err(X509_F_GET_CERT_BY_SUBJECT,ERR_R_MALLOC_FAILURE);
sl@0: 			goto finish;
sl@0: 			}
sl@0: 		k=0;
sl@0: 		for (;;)
sl@0: 			{
sl@0: 			char c = '/';
sl@0: #ifdef OPENSSL_SYS_VMS
sl@0: 			c = ctx->dirs[i][strlen(ctx->dirs[i])-1];
sl@0: 			if (c != ':' && c != '>' && c != ']')
sl@0: 				{
sl@0: 				/* If no separator is present, we assume the
sl@0: 				   directory specifier is a logical name, and
sl@0: 				   add a colon.  We really should use better
sl@0: 				   VMS routines for merging things like this,
sl@0: 				   but this will do for now...
sl@0: 				   -- Richard Levitte */
sl@0: 				c = ':';
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				c = '\0';
sl@0: 				}
sl@0: #endif
sl@0: 			if (c == '\0')
sl@0: 				{
sl@0: 				/* This is special.  When c == '\0', no
sl@0: 				   directory separator should be added. */
sl@0: 				BIO_snprintf(b->data,b->max,
sl@0: 					"%s%08lx.%s%d",ctx->dirs[i],h,
sl@0: 					postfix,k);
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				BIO_snprintf(b->data,b->max,
sl@0: 					"%s%c%08lx.%s%d",ctx->dirs[i],c,h,
sl@0: 					postfix,k);
sl@0: 				}
sl@0: 			k++;
sl@0: 			if (stat(b->data,&st) < 0)
sl@0: 				break;
sl@0: 			/* found one. */
sl@0: 			if (type == X509_LU_X509)
sl@0: 				{
sl@0: 				if ((X509_load_cert_file(xl,b->data,
sl@0: 					ctx->dirs_type[i])) == 0)
sl@0: 					break;
sl@0: 				}
sl@0: 			else if (type == X509_LU_CRL)
sl@0: 				{
sl@0: 				if ((X509_load_crl_file(xl,b->data,
sl@0: 					ctx->dirs_type[i])) == 0)
sl@0: 					break;
sl@0: 				}
sl@0: 			/* else case will caught higher up */
sl@0: 			}
sl@0: 
sl@0: 		/* we have added it to the cache so now pull
sl@0: 		 * it out again */
sl@0: 		CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
sl@0: 		j = sk_X509_OBJECT_find(xl->store_ctx->objs,&stmp);
sl@0: 		if(j != -1) tmp=sk_X509_OBJECT_value(xl->store_ctx->objs,j);
sl@0: 		else tmp = NULL;
sl@0: 		CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
sl@0: 
sl@0: 		if (tmp != NULL)
sl@0: 			{
sl@0: 			ok=1;
sl@0: 			ret->type=tmp->type;
sl@0: 			memcpy(&ret->data,&tmp->data,sizeof(ret->data));
sl@0: 			/* If we were going to up the reference count,
sl@0: 			 * we would need to do it on a perl 'type'
sl@0: 			 * basis */
sl@0: 	/*		CRYPTO_add(&tmp->data.x509->references,1,
sl@0: 				CRYPTO_LOCK_X509);*/
sl@0: 			goto finish;
sl@0: 			}
sl@0: 		}
sl@0: finish:
sl@0: 	if (b != NULL) BUF_MEM_free(b);
sl@0: 	return(ok);
sl@0: 	}
sl@0: