diff options
Diffstat (limited to 'crypto/pem/pem_info.c')
| -rw-r--r-- | crypto/pem/pem_info.c | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/crypto/pem/pem_info.c b/crypto/pem/pem_info.c new file mode 100644 index 0000000000..aafd9ce7be --- /dev/null +++ b/crypto/pem/pem_info.c @@ -0,0 +1,365 @@ +/* crypto/pem/pem_info.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 "buffer.h" +#include "objects.h" +#include "evp.h" +#include "x509.h" +#include "pem.h" + +#ifndef WIN16 +STACK *PEM_X509_INFO_read(fp,sk,cb) +FILE *fp; +STACK *sk; +int (*cb)(); + { + BIO *b; + STACK *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); + BIO_free(b); + return(ret); + } +#endif + +STACK *PEM_X509_INFO_read_bio(bp,sk,cb) +BIO *bp; +STACK *sk; +int (*cb)(); + { + X509_INFO *xi=NULL; + char *name=NULL,*header=NULL,**pp; + unsigned char *data=NULL,*p; + long len,error=0; + int ok=0; + STACK *ret=NULL; + unsigned int i,raw; + char *(*d2i)(); + + if (sk == NULL) + { + if ((ret=sk_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; + i=PEM_read_bio(bp,&name,&header,&data,&len); + if (i == 0) + { + error=ERR_GET_REASON(ERR_peek_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=(char *(*)())d2i_X509; + if (xi->x509 != NULL) + { + if (!sk_push(ret,(char *)xi)) goto err; + if ((xi=X509_INFO_new()) == NULL) goto err; + goto start; + } + pp=(char **)&(xi->x509); + } + else if (strcmp(name,PEM_STRING_X509_CRL) == 0) + { + d2i=(char *(*)())d2i_X509_CRL; + if (xi->crl != NULL) + { + if (!sk_push(ret,(char *)xi)) goto err; + if ((xi=X509_INFO_new()) == NULL) goto err; + goto start; + } + pp=(char **)&(xi->crl); + } + else +#ifndef NO_RSA + if (strcmp(name,PEM_STRING_RSA) == 0) + { + d2i=(char *(*)())d2i_RSAPrivateKey; + if (xi->x_pkey != NULL) + { + if (!sk_push(ret,(char *)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(); + if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL) + goto err; + xi->x_pkey->dec_pkey->type=EVP_PKEY_RSA; + pp=(char **)&(xi->x_pkey->dec_pkey->pkey.rsa); + if ((int)strlen(header) > 10) /* assume encrypted */ + raw=1; + } + else +#endif +#ifndef NO_DSA + if (strcmp(name,PEM_STRING_DSA) == 0) + { + d2i=(char *(*)())d2i_DSAPrivateKey; + if (xi->x_pkey != NULL) + { + if (!sk_push(ret,(char *)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(); + if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL) + goto err; + xi->x_pkey->dec_pkey->type=EVP_PKEY_DSA; + pp=(char **)&(xi->x_pkey->dec_pkey->pkey.dsa); + 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)) + goto err; + p=data; + 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) Free(name); + if (header != NULL) Free(header); + if (data != NULL) 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_push(ret,(char *)xi)) goto err; + xi=NULL; + } + ok=1; +err: + if (xi != NULL) X509_INFO_free(xi); + if (!ok) + { + for (i=0; ((int)i)<sk_num(ret); i++) + { + xi=(X509_INFO *)sk_value(ret,i); + X509_INFO_free(xi); + } + if (ret != sk) sk_free(ret); + ret=NULL; + } + + if (name != NULL) Free(name); + if (header != NULL) Free(header); + if (data != NULL) Free(data); + return(ret); + } + + +/* A TJH addition */ +int PEM_X509_INFO_write_bio(bp,xi,enc,kstr,klen,cb) +BIO *bp; +X509_INFO *xi; +EVP_CIPHER *enc; +unsigned char *kstr; +int klen; +int (*cb)(); + { + EVP_CIPHER_CTX ctx; + int i,ret=0; + unsigned char *data=NULL; + char *objstr=NULL; +#define PEM_BUFSIZE 1024 + 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) ) + { + /* copy from wierdo 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 */ + buf[0]='\0'; + PEM_proc_type(buf,PEM_TYPE_ENCRYPTED); + PEM_dek_info(buf,objstr,8,(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 NO_RSA + /* normal optionally encrypted stuff */ + if (PEM_write_bio_RSAPrivateKey(bp, + xi->x_pkey->dec_pkey->pkey.rsa, + enc,kstr,klen,cb)<=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: + memset((char *)&ctx,0,sizeof(ctx)); + memset(buf,0,PEM_BUFSIZE); + return(ret); + } |