--- /dev/null
+/* crypto/pem/pem_info.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 "cryptlib.h"
+#include <openssl/buffer.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+#include <openssl/pem.h>
+#ifndef OPENSSL_NO_RSA
+#include <openssl/rsa.h>
+#endif
+#ifndef OPENSSL_NO_DSA
+#include <openssl/dsa.h>
+#endif
+
+#ifndef OPENSSL_NO_FP_API
+STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
+ {
+ BIO *b;
+ STACK_OF(X509_INFO) *ret;
+
+ if ((b=BIO_new(BIO_s_file())) == NULL)
+ {
+ PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
+ return(0);
+ }
+ BIO_set_fp(b,fp,BIO_NOCLOSE);
+ ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
+ BIO_free(b);
+ return(ret);
+ }
+#endif
+
+STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
+ {
+ X509_INFO *xi=NULL;
+ char *name=NULL,*header=NULL;
+ void *pp;
+ unsigned char *data=NULL;
+ const unsigned char *p;
+ long len,error=0;
+ int ok=0;
+ STACK_OF(X509_INFO) *ret=NULL;
+ unsigned int i,raw,ptype;
+ d2i_of_void *d2i = 0;
+
+ if (sk == NULL)
+ {
+ if ((ret=sk_X509_INFO_new_null()) == NULL)
+ {
+ PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ }
+ else
+ ret=sk;
+
+ if ((xi=X509_INFO_new()) == NULL) goto err;
+ for (;;)
+ {
+ raw=0;
+ ptype = 0;
+ i=PEM_read_bio(bp,&name,&header,&data,&len);
+ if (i == 0)
+ {
+ error=ERR_GET_REASON(ERR_peek_last_error());
+ if (error == PEM_R_NO_START_LINE)
+ {
+ ERR_clear_error();
+ break;
+ }
+ goto err;
+ }
+start:
+ if ( (strcmp(name,PEM_STRING_X509) == 0) ||
+ (strcmp(name,PEM_STRING_X509_OLD) == 0))
+ {
+ d2i=(D2I_OF(void))d2i_X509;
+ if (xi->x509 != NULL)
+ {
+ if (!sk_X509_INFO_push(ret,xi)) goto err;
+ if ((xi=X509_INFO_new()) == NULL) goto err;
+ goto start;
+ }
+ pp=&(xi->x509);
+ }
+ else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
+ {
+ d2i=(D2I_OF(void))d2i_X509_AUX;
+ if (xi->x509 != NULL)
+ {
+ if (!sk_X509_INFO_push(ret,xi)) goto err;
+ if ((xi=X509_INFO_new()) == NULL) goto err;
+ goto start;
+ }
+ pp=&(xi->x509);
+ }
+ else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
+ {
+ d2i=(D2I_OF(void))d2i_X509_CRL;
+ if (xi->crl != NULL)
+ {
+ if (!sk_X509_INFO_push(ret,xi)) goto err;
+ if ((xi=X509_INFO_new()) == NULL) goto err;
+ goto start;
+ }
+ pp=&(xi->crl);
+ }
+ else
+#ifndef OPENSSL_NO_RSA
+ if (strcmp(name,PEM_STRING_RSA) == 0)
+ {
+ d2i=(D2I_OF(void))d2i_RSAPrivateKey;
+ if (xi->x_pkey != NULL)
+ {
+ if (!sk_X509_INFO_push(ret,xi)) goto err;
+ if ((xi=X509_INFO_new()) == NULL) goto err;
+ goto start;
+ }
+
+ xi->enc_data=NULL;
+ xi->enc_len=0;
+
+ xi->x_pkey=X509_PKEY_new();
+ ptype=EVP_PKEY_RSA;
+ pp=&xi->x_pkey->dec_pkey;
+ if ((int)strlen(header) > 10) /* assume encrypted */
+ raw=1;
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_DSA
+ if (strcmp(name,PEM_STRING_DSA) == 0)
+ {
+ d2i=(D2I_OF(void))d2i_DSAPrivateKey;
+ if (xi->x_pkey != NULL)
+ {
+ if (!sk_X509_INFO_push(ret,xi)) goto err;
+ if ((xi=X509_INFO_new()) == NULL) goto err;
+ goto start;
+ }
+
+ xi->enc_data=NULL;
+ xi->enc_len=0;
+
+ xi->x_pkey=X509_PKEY_new();
+ ptype = EVP_PKEY_DSA;
+ pp=&xi->x_pkey->dec_pkey;
+ if ((int)strlen(header) > 10) /* assume encrypted */
+ raw=1;
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_EC
+ if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0)
+ {
+ d2i=(D2I_OF(void))d2i_ECPrivateKey;
+ if (xi->x_pkey != NULL)
+ {
+ if (!sk_X509_INFO_push(ret,xi)) goto err;
+ if ((xi=X509_INFO_new()) == NULL) goto err;
+ goto start;
+ }
+
+ xi->enc_data=NULL;
+ xi->enc_len=0;
+
+ xi->x_pkey=X509_PKEY_new();
+ ptype = EVP_PKEY_EC;
+ pp=&xi->x_pkey->dec_pkey;
+ if ((int)strlen(header) > 10) /* assume encrypted */
+ raw=1;
+ }
+ else
+#endif
+ {
+ d2i=NULL;
+ pp=NULL;
+ }
+
+ if (d2i != NULL)
+ {
+ if (!raw)
+ {
+ EVP_CIPHER_INFO cipher;
+
+ if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
+ goto err;
+ if (!PEM_do_header(&cipher,data,&len,cb,u))
+ goto err;
+ p=data;
+ if (ptype)
+ {
+ if (!d2i_PrivateKey(ptype, pp, &p, len))
+ {
+ PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
+ goto err;
+ }
+ }
+ else if (d2i(pp,&p,len) == NULL)
+ {
+ PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
+ goto err;
+ }
+ }
+ else
+ { /* encrypted RSA data */
+ if (!PEM_get_EVP_CIPHER_INFO(header,
+ &xi->enc_cipher)) goto err;
+ xi->enc_data=(char *)data;
+ xi->enc_len=(int)len;
+ data=NULL;
+ }
+ }
+ else {
+ /* unknown */
+ }
+ if (name != NULL) OPENSSL_free(name);
+ if (header != NULL) OPENSSL_free(header);
+ if (data != NULL) OPENSSL_free(data);
+ name=NULL;
+ header=NULL;
+ data=NULL;
+ }
+
+ /* if the last one hasn't been pushed yet and there is anything
+ * in it then add it to the stack ...
+ */
+ if ((xi->x509 != NULL) || (xi->crl != NULL) ||
+ (xi->x_pkey != NULL) || (xi->enc_data != NULL))
+ {
+ if (!sk_X509_INFO_push(ret,xi)) goto err;
+ xi=NULL;
+ }
+ ok=1;
+err:
+ if (xi != NULL) X509_INFO_free(xi);
+ if (!ok)
+ {
+ for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
+ {
+ xi=sk_X509_INFO_value(ret,i);
+ X509_INFO_free(xi);
+ }
+ if (ret != sk) sk_X509_INFO_free(ret);
+ ret=NULL;
+ }
+
+ if (name != NULL) OPENSSL_free(name);
+ if (header != NULL) OPENSSL_free(header);
+ if (data != NULL) OPENSSL_free(data);
+ return(ret);
+ }
+
+
+/* A TJH addition */
+int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
+ unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
+ {
+ EVP_CIPHER_CTX ctx;
+ int i,ret=0;
+ unsigned char *data=NULL;
+ const char *objstr=NULL;
+ char buf[PEM_BUFSIZE];
+ unsigned char *iv=NULL;
+
+ if (enc != NULL)
+ {
+ objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
+ if (objstr == NULL)
+ {
+ PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
+ goto err;
+ }
+ }
+
+ /* now for the fun part ... if we have a private key then
+ * we have to be able to handle a not-yet-decrypted key
+ * being written out correctly ... if it is decrypted or
+ * it is non-encrypted then we use the base code
+ */
+ if (xi->x_pkey!=NULL)
+ {
+ if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
+ {
+ if (enc == NULL)
+ {
+ PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_CIPHER_IS_NULL);
+ goto err;
+ }
+
+ /* copy from weirdo names into more normal things */
+ iv=xi->enc_cipher.iv;
+ data=(unsigned char *)xi->enc_data;
+ i=xi->enc_len;
+
+ /* we take the encryption data from the
+ * internal stuff rather than what the
+ * user has passed us ... as we have to
+ * match exactly for some strange reason
+ */
+ objstr=OBJ_nid2sn(
+ EVP_CIPHER_nid(xi->enc_cipher.cipher));
+ if (objstr == NULL)
+ {
+ PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
+ goto err;
+ }
+
+ /* create the right magic header stuff */
+ OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
+ buf[0]='\0';
+ PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
+ PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
+
+ /* use the normal code to write things out */
+ i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
+ if (i <= 0) goto err;
+ }
+ else
+ {
+ /* Add DSA/DH */
+#ifndef OPENSSL_NO_RSA
+ /* normal optionally encrypted stuff */
+ if (PEM_write_bio_RSAPrivateKey(bp,
+ xi->x_pkey->dec_pkey->pkey.rsa,
+ enc,kstr,klen,cb,u)<=0)
+ goto err;
+#endif
+ }
+ }
+
+ /* if we have a certificate then write it out now */
+ if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
+ goto err;
+
+ /* we are ignoring anything else that is loaded into the X509_INFO
+ * structure for the moment ... as I don't need it so I'm not
+ * coding it here and Eric can do it when this makes it into the
+ * base library --tjh
+ */
+
+ ret=1;
+
+err:
+ OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
+ OPENSSL_cleanse(buf,PEM_BUFSIZE);
+ return(ret);
+ }
projects / cassiopeia.git / blobdiff