/* apps/req.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 #include #include #include #ifdef NO_STDIO #define APPS_WIN16 #endif #include "apps.h" #include #include #include #include #include #include #include #include #include #define SECTION "req" #define BITS "default_bits" #define KEYFILE "default_keyfile" #define PROMPT "prompt" #define DISTINGUISHED_NAME "distinguished_name" #define ATTRIBUTES "attributes" #define V3_EXTENSIONS "x509_extensions" #define REQ_EXTENSIONS "req_extensions" #define STRING_MASK "string_mask" #define DEFAULT_KEY_LENGTH 512 #define MIN_KEY_LENGTH 384 #undef PROG #define PROG req_main /* -inform arg - input format - default PEM (DER or PEM) * -outform arg - output format - default PEM * -in arg - input file - default stdin * -out arg - output file - default stdout * -verify - check request signature * -noout - don't print stuff out. * -text - print out human readable text. * -nodes - no des encryption * -config file - Load configuration file. * -key file - make a request using key in file (or use it for verification). * -keyform - key file format. * -rand file(s) - load the file(s) into the PRNG. * -newkey - make a key and a request. * -modulus - print RSA modulus. * -x509 - output a self signed X509 structure instead. * -asn1-kludge - output new certificate request in a format that some CA's * require. This format is wrong */ static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs); static int prompt_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect, STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs); static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk, STACK_OF(CONF_VALUE) *attr, int attribs); static int add_attribute_object(X509_REQ *req, char *text, char *def, char *value, int nid, int min, int max); static int add_DN_object(X509_NAME *n, char *text, char *def, char *value, int nid,int min,int max); #ifndef NO_RSA static void MS_CALLBACK req_cb(int p,int n,void *arg); #endif static int req_check_len(int len,int min,int max); static int check_end(char *str, char *end); #ifndef MONOLITH static char *default_config_file=NULL; static LHASH *config=NULL; #endif static LHASH *req_conf=NULL; #define TYPE_RSA 1 #define TYPE_DSA 2 #define TYPE_DH 3 int MAIN(int, char **); int MAIN(int argc, char **argv) { #ifndef NO_DSA DSA *dsa_params=NULL; #endif int ex=1,x509=0,days=30; X509 *x509ss=NULL; X509_REQ *req=NULL; EVP_PKEY *pkey=NULL; int i,badops=0,newreq=0,newkey= -1,pkey_type=0; BIO *in=NULL,*out=NULL; int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM; int nodes=0,kludge=0,newhdr=0; char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL; char *extensions = NULL; char *req_exts = NULL; EVP_CIPHER *cipher=NULL; int modulus=0; char *inrand=NULL; char *passargin = NULL, *passargout = NULL; char *passin = NULL, *passout = NULL; char *p; const EVP_MD *md_alg=NULL,*digest=EVP_md5(); #ifndef MONOLITH MS_STATIC char config_name[256]; #endif req_conf = NULL; #ifndef NO_DES cipher=EVP_des_ede3_cbc(); #endif apps_startup(); if (bio_err == NULL) if ((bio_err=BIO_new(BIO_s_file())) != NULL) BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); infile=NULL; outfile=NULL; informat=FORMAT_PEM; outformat=FORMAT_PEM; prog=argv[0]; argc--; argv++; while (argc >= 1) { if (strcmp(*argv,"-inform") == 0) { if (--argc < 1) goto bad; informat=str2fmt(*(++argv)); } else if (strcmp(*argv,"-outform") == 0) { if (--argc < 1) goto bad; outformat=str2fmt(*(++argv)); } else if (strcmp(*argv,"-key") == 0) { if (--argc < 1) goto bad; keyfile= *(++argv); } else if (strcmp(*argv,"-new") == 0) { pkey_type=TYPE_RSA; newreq=1; } else if (strcmp(*argv,"-config") == 0) { if (--argc < 1) goto bad; template= *(++argv); } else if (strcmp(*argv,"-keyform") == 0) { if (--argc < 1) goto bad; keyform=str2fmt(*(++argv)); } else if (strcmp(*argv,"-in") == 0) { if (--argc < 1) goto bad; infile= *(++argv); } else if (strcmp(*argv,"-out") == 0) { if (--argc < 1) goto bad; outfile= *(++argv); } else if (strcmp(*argv,"-keyout") == 0) { if (--argc < 1) goto bad; keyout= *(++argv); } else if (strcmp(*argv,"-passin") == 0) { if (--argc < 1) goto bad; passargin= *(++argv); } else if (strcmp(*argv,"-passout") == 0) { if (--argc < 1) goto bad; passargout= *(++argv); } else if (strcmp(*argv,"-rand") == 0) { if (--argc < 1) goto bad; inrand= *(++argv); } else if (strcmp(*argv,"-newkey") == 0) { int is_numeric; if (--argc < 1) goto bad; p= *(++argv); is_numeric = p[0] >= '0' && p[0] <= '9'; if (strncmp("rsa:",p,4) == 0 || is_numeric) { pkey_type=TYPE_RSA; if(!is_numeric) p+=4; newkey= atoi(p); } else #ifndef NO_DSA if (strncmp("dsa:",p,4) == 0) { X509 *xtmp=NULL; EVP_PKEY *dtmp; pkey_type=TYPE_DSA; p+=4; if ((in=BIO_new_file(p,"r")) == NULL) { perror(p); goto end; } if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL) { ERR_clear_error(); (void)BIO_reset(in); if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL) { BIO_printf(bio_err,"unable to load DSA parameters from file\n"); goto end; } dtmp=X509_get_pubkey(xtmp); if (dtmp->type == EVP_PKEY_DSA) dsa_params=DSAparams_dup(dtmp->pkey.dsa); EVP_PKEY_free(dtmp); X509_free(xtmp); if (dsa_params == NULL) { BIO_printf(bio_err,"Certificate does not contain DSA parameters\n"); goto end; } } BIO_free(in); newkey=BN_num_bits(dsa_params->p); in=NULL; } else #endif #ifndef NO_DH if (strncmp("dh:",p,4) == 0) { pkey_type=TYPE_DH; p+=3; } else #endif pkey_type=TYPE_RSA; newreq=1; } else if (strcmp(*argv,"-newhdr") == 0) newhdr=1; else if (strcmp(*argv,"-modulus") == 0) modulus=1; else if (strcmp(*argv,"-verify") == 0) verify=1; else if (strcmp(*argv,"-nodes") == 0) nodes=1; else if (strcmp(*argv,"-noout") == 0) noout=1; else if (strcmp(*argv,"-text") == 0) text=1; else if (strcmp(*argv,"-x509") == 0) x509=1; else if (strcmp(*argv,"-asn1-kludge") == 0) kludge=1; else if (strcmp(*argv,"-no-asn1-kludge") == 0) kludge=0; else if (strcmp(*argv,"-days") == 0) { if (--argc < 1) goto bad; days= atoi(*(++argv)); if (days == 0) days=30; } else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL) { /* ok */ digest=md_alg; } else if (strcmp(*argv,"-extensions") == 0) { if (--argc < 1) goto bad; extensions = *(++argv); } else if (strcmp(*argv,"-reqexts") == 0) { if (--argc < 1) goto bad; req_exts = *(++argv); } else { BIO_printf(bio_err,"unknown option %s\n",*argv); badops=1; break; } argc--; argv++; } if (badops) { bad: BIO_printf(bio_err,"%s [options] outfile\n",prog); BIO_printf(bio_err,"where options are\n"); BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); BIO_printf(bio_err," -in arg input file\n"); BIO_printf(bio_err," -out arg output file\n"); BIO_printf(bio_err," -text text form of request\n"); BIO_printf(bio_err," -noout do not output REQ\n"); BIO_printf(bio_err," -verify verify signature on REQ\n"); BIO_printf(bio_err," -modulus RSA modulus\n"); BIO_printf(bio_err," -nodes don't encrypt the output key\n"); BIO_printf(bio_err," -key file use the private key contained in file\n"); BIO_printf(bio_err," -keyform arg key file format\n"); BIO_printf(bio_err," -keyout arg file to send the key to\n"); BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); BIO_printf(bio_err," load the file (or the files in the directory) into\n"); BIO_printf(bio_err," the random number generator\n"); BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n"); BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n"); BIO_printf(bio_err," -[digest] Digest to sign with (md5, sha1, md2, mdc2)\n"); BIO_printf(bio_err," -config file request template file.\n"); BIO_printf(bio_err," -new new request.\n"); BIO_printf(bio_err," -x509 output a x509 structure instead of a cert. req.\n"); BIO_printf(bio_err," -days number of days a x509 generated by -x509 is valid for.\n"); BIO_printf(bio_err," -newhdr output \"NEW\" in the header lines\n"); BIO_printf(bio_err," -asn1-kludge Output the 'request' in a format that is wrong but some CA's\n"); BIO_printf(bio_err," have been reported as requiring\n"); BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n"); BIO_printf(bio_err," -reqexts .. specify request extension section (override value in config file)\n"); goto end; } ERR_load_crypto_strings(); if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { BIO_printf(bio_err, "Error getting passwords\n"); goto end; } #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */ /* Lets load up our environment a little */ p=getenv("OPENSSL_CONF"); if (p == NULL) p=getenv("SSLEAY_CONF"); if (p == NULL) { strcpy(config_name,X509_get_default_cert_area()); #ifndef VMS strcat(config_name,"/"); #endif strcat(config_name,OPENSSL_CONF); p=config_name; } default_config_file=p; config=CONF_load(config,p,NULL); #endif if (template != NULL) { long errline; BIO_printf(bio_err,"Using configuration from %s\n",template); req_conf=CONF_load(NULL,template,&errline); if (req_conf == NULL) { BIO_printf(bio_err,"error on line %ld of %s\n",errline,template); goto end; } } else { req_conf=config; BIO_printf(bio_err,"Using configuration from %s\n", default_config_file); if (req_conf == NULL) { BIO_printf(bio_err,"Unable to load config info\n"); } } if (req_conf != NULL) { p=CONF_get_string(req_conf,NULL,"oid_file"); if (p != NULL) { BIO *oid_bio; oid_bio=BIO_new_file(p,"r"); if (oid_bio == NULL) { /* BIO_printf(bio_err,"problems opening %s for extra oid's\n",p); ERR_print_errors(bio_err); */ } else { OBJ_create_objects(oid_bio); BIO_free(oid_bio); } } } if(!add_oid_section(bio_err, req_conf)) goto end; if ((md_alg == NULL) && ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL)) { if ((md_alg=EVP_get_digestbyname(p)) != NULL) digest=md_alg; } if(!extensions) extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS); if(extensions) { /* Check syntax of file */ X509V3_CTX ctx; X509V3_set_ctx_test(&ctx); X509V3_set_conf_lhash(&ctx, req_conf); if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) { BIO_printf(bio_err, "Error Loading extension section %s\n", extensions); goto end; } } if(!passin) passin = CONF_get_string(req_conf, SECTION, "input_password"); if(!passout) passout = CONF_get_string(req_conf, SECTION, "output_password"); p = CONF_get_string(req_conf, SECTION, STRING_MASK); if(p && !ASN1_STRING_set_default_mask_asc(p)) { BIO_printf(bio_err, "Invalid global string mask setting %s\n", p); goto end; } if(!req_exts) req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS); if(req_exts) { /* Check syntax of file */ X509V3_CTX ctx; X509V3_set_ctx_test(&ctx); X509V3_set_conf_lhash(&ctx, req_conf); if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) { BIO_printf(bio_err, "Error Loading request extension section %s\n", req_exts); goto end; } } in=BIO_new(BIO_s_file()); out=BIO_new(BIO_s_file()); if ((in == NULL) || (out == NULL)) goto end; if (keyfile != NULL) { if (BIO_read_filename(in,keyfile) <= 0) { perror(keyfile); goto end; } if (keyform == FORMAT_ASN1) pkey=d2i_PrivateKey_bio(in,NULL); else if (keyform == FORMAT_PEM) { pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,passin); } else { BIO_printf(bio_err,"bad input format specified for X509 request\n"); goto end; } if (pkey == NULL) { BIO_printf(bio_err,"unable to load Private key\n"); goto end; } } if (newreq && (pkey == NULL)) { char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE"); app_RAND_load_file(randfile, bio_err, 0); if (inrand) app_RAND_load_files(inrand); if (newkey <= 0) { newkey=(int)CONF_get_number(req_conf,SECTION,BITS); if (newkey <= 0) newkey=DEFAULT_KEY_LENGTH; } if (newkey < MIN_KEY_LENGTH) { BIO_printf(bio_err,"private key length is too short,\n"); BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey); goto end; } BIO_printf(bio_err,"Generating a %d bit %s private key\n", newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA"); if ((pkey=EVP_PKEY_new()) == NULL) goto end; #ifndef NO_RSA if (pkey_type == TYPE_RSA) { if (!EVP_PKEY_assign_RSA(pkey, RSA_generate_key(newkey,0x10001, req_cb,bio_err))) goto end; } else #endif #ifndef NO_DSA if (pkey_type == TYPE_DSA) { if (!DSA_generate_key(dsa_params)) goto end; if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end; dsa_params=NULL; } #endif app_RAND_write_file(randfile, bio_err); if (pkey == NULL) goto end; if (keyout == NULL) keyout=CONF_get_string(req_conf,SECTION,KEYFILE); if (keyout == NULL) { BIO_printf(bio_err,"writing new private key to stdout\n"); BIO_set_fp(out,stdout,BIO_NOCLOSE); } else { BIO_printf(bio_err,"writing new private key to '%s'\n",keyout); if (BIO_write_filename(out,keyout) <= 0) { perror(keyout); goto end; } } p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key"); if (p == NULL) p=CONF_get_string(req_conf,SECTION,"encrypt_key"); if ((p != NULL) && (strcmp(p,"no") == 0)) cipher=NULL; if (nodes) cipher=NULL; i=0; loop: if (!PEM_write_bio_PrivateKey(out,pkey,cipher, NULL,0,NULL,passout)) { if ((ERR_GET_REASON(ERR_peek_error()) == PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) { ERR_clear_error(); i++; goto loop; } goto end; } BIO_printf(bio_err,"-----\n"); } if (!newreq) { /* Since we are using a pre-existing certificate * request, the kludge 'format' info should not be * changed. */ kludge= -1; if (infile == NULL) BIO_set_fp(in,stdin,BIO_NOCLOSE); else { if (BIO_read_filename(in,infile) <= 0) { perror(infile); goto end; } } if (informat == FORMAT_ASN1) req=d2i_X509_REQ_bio(in,NULL); else if (informat == FORMAT_PEM) req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL); else { BIO_printf(bio_err,"bad input format specified for X509 request\n"); goto end; } if (req == NULL) { BIO_printf(bio_err,"unable to load X509 request\n"); goto end; } } if (newreq || x509) { #ifndef NO_DSA if (pkey->type == EVP_PKEY_DSA) digest=EVP_dss1(); #endif if (pkey == NULL) { BIO_printf(bio_err,"you need to specify a private key\n"); goto end; } if (req == NULL) { req=X509_REQ_new(); if (req == NULL) { goto end; } i=make_REQ(req,pkey,!x509); if (kludge >= 0) req->req_info->req_kludge=kludge; if (!i) { BIO_printf(bio_err,"problems making Certificate Request\n"); goto end; } } if (x509) { EVP_PKEY *tmppkey; X509V3_CTX ext_ctx; if ((x509ss=X509_new()) == NULL) goto end; /* Set version to V3 */ if(!X509_set_version(x509ss, 2)) goto end; ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L); X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)); X509_gmtime_adj(X509_get_notBefore(x509ss),0); X509_gmtime_adj(X509_get_notAfter(x509ss), (long)60*60*24*days); X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req)); tmppkey = X509_REQ_get_pubkey(req); X509_set_pubkey(x509ss,tmppkey); EVP_PKEY_free(tmppkey); /* Set up V3 context struct */ X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0); X509V3_set_conf_lhash(&ext_ctx, req_conf); /* Add extensions */ if(extensions && !X509V3_EXT_add_conf(req_conf, &ext_ctx, extensions, x509ss)) { BIO_printf(bio_err, "Error Loading extension section %s\n", extensions); goto end; } if (!(i=X509_sign(x509ss,pkey,digest))) goto end; } else { X509V3_CTX ext_ctx; /* Set up V3 context struct */ X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0); X509V3_set_conf_lhash(&ext_ctx, req_conf); /* Add extensions */ if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf, &ext_ctx, req_exts, req)) { BIO_printf(bio_err, "Error Loading extension section %s\n", req_exts); goto end; } if (!(i=X509_REQ_sign(req,pkey,digest))) goto end; } } if (verify && !x509) { int tmp=0; if (pkey == NULL) { pkey=X509_REQ_get_pubkey(req); tmp=1; if (pkey == NULL) goto end; } i=X509_REQ_verify(req,pkey); if (tmp) { EVP_PKEY_free(pkey); pkey=NULL; } if (i < 0) { goto end; } else if (i == 0) { BIO_printf(bio_err,"verify failure\n"); } else /* if (i > 0) */ BIO_printf(bio_err,"verify OK\n"); } if (noout && !text && !modulus) { ex=0; goto end; } if (outfile == NULL) BIO_set_fp(out,stdout,BIO_NOCLOSE); else { if ((keyout != NULL) && (strcmp(outfile,keyout) == 0)) i=(int)BIO_append_filename(out,outfile); else i=(int)BIO_write_filename(out,outfile); if (!i) { perror(outfile); goto end; } } if (text) { if (x509) X509_print(out,x509ss); else X509_REQ_print(out,req); } if (modulus) { EVP_PKEY *pubkey; if (x509) pubkey=X509_get_pubkey(x509ss); else pubkey=X509_REQ_get_pubkey(req); if (pubkey == NULL) { fprintf(stdout,"Modulus=unavailable\n"); goto end; } fprintf(stdout,"Modulus="); #ifndef NO_RSA if (pubkey->type == EVP_PKEY_RSA) BN_print(out,pubkey->pkey.rsa->n); else #endif fprintf(stdout,"Wrong Algorithm type"); fprintf(stdout,"\n"); } if (!noout && !x509) { if (outformat == FORMAT_ASN1) i=i2d_X509_REQ_bio(out,req); else if (outformat == FORMAT_PEM) { if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req); else i=PEM_write_bio_X509_REQ(out,req); } else { BIO_printf(bio_err,"bad output format specified for outfile\n"); goto end; } if (!i) { BIO_printf(bio_err,"unable to write X509 request\n"); goto end; } } if (!noout && x509 && (x509ss != NULL)) { if (outformat == FORMAT_ASN1) i=i2d_X509_bio(out,x509ss); else if (outformat == FORMAT_PEM) i=PEM_write_bio_X509(out,x509ss); else { BIO_printf(bio_err,"bad output format specified for outfile\n"); goto end; } if (!i) { BIO_printf(bio_err,"unable to write X509 certificate\n"); goto end; } } ex=0; end: if (ex) { ERR_print_errors(bio_err); } if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf); BIO_free(in); BIO_free(out); EVP_PKEY_free(pkey); X509_REQ_free(req); X509_free(x509ss); if(passargin && passin) OPENSSL_free(passin); if(passargout && passout) OPENSSL_free(passout); OBJ_cleanup(); #ifndef NO_DSA if (dsa_params != NULL) DSA_free(dsa_params); #endif EXIT(ex); } static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs) { int ret=0,i; char no_prompt = 0; STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL; char *tmp, *dn_sect,*attr_sect; tmp=CONF_get_string(req_conf,SECTION,PROMPT); if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1; dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME); if (dn_sect == NULL) { BIO_printf(bio_err,"unable to find '%s' in config\n", DISTINGUISHED_NAME); goto err; } dn_sk=CONF_get_section(req_conf,dn_sect); if (dn_sk == NULL) { BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect); goto err; } attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES); if (attr_sect == NULL) attr_sk=NULL; else { attr_sk=CONF_get_section(req_conf,attr_sect); if (attr_sk == NULL) { BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect); goto err; } } /* setup version number */ if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */ if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs); else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs); if(!i) goto err; X509_REQ_set_pubkey(req,pkey); ret=1; err: return(ret); } static int prompt_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect, STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs) { int i; char *p,*q; char buf[100]; int nid,min,max; char *type,*def,*value; CONF_VALUE *v; X509_NAME *subj; subj = X509_REQ_get_subject_name(req); BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n"); BIO_printf(bio_err,"into your certificate request.\n"); BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n"); BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n"); BIO_printf(bio_err,"For some fields there will be a default value,\n"); BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n"); BIO_printf(bio_err,"-----\n"); if (sk_CONF_VALUE_num(dn_sk)) { i= -1; start: for (;;) { i++; if (sk_CONF_VALUE_num(dn_sk) <= i) break; v=sk_CONF_VALUE_value(dn_sk,i); p=q=NULL; type=v->name; if(!check_end(type,"_min") || !check_end(type,"_max") || !check_end(type,"_default") || !check_end(type,"_value")) continue; /* Skip past any leading X. X: X, etc to allow for * multiple instances */ for(p = v->name; *p ; p++) if ((*p == ':') || (*p == ',') || (*p == '.')) { p++; if(*p) type = p; break; } /* If OBJ not recognised ignore it */ if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start; sprintf(buf,"%s_default",v->name); if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL) def=""; sprintf(buf,"%s_value",v->name); if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL) value=NULL; sprintf(buf,"%s_min",v->name); min=(int)CONF_get_number(req_conf,dn_sect,buf); sprintf(buf,"%s_max",v->name); max=(int)CONF_get_number(req_conf,dn_sect,buf); if (!add_DN_object(subj,v->value,def,value,nid, min,max)) return 0; } if (X509_NAME_entry_count(subj) == 0) { BIO_printf(bio_err,"error, no objects specified in config file\n"); return 0; } if (attribs) { if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)) { BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n"); BIO_printf(bio_err,"to be sent with your certificate request\n"); } i= -1; start2: for (;;) { i++; if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i)) break; v=sk_CONF_VALUE_value(attr_sk,i); type=v->name; if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start2; sprintf(buf,"%s_default",type); if ((def=CONF_get_string(req_conf,attr_sect,buf)) == NULL) def=""; sprintf(buf,"%s_value",type); if ((value=CONF_get_string(req_conf,attr_sect,buf)) == NULL) value=NULL; sprintf(buf,"%s_min",type); min=(int)CONF_get_number(req_conf,attr_sect,buf); sprintf(buf,"%s_max",type); max=(int)CONF_get_number(req_conf,attr_sect,buf); if (!add_attribute_object(req, v->value,def,value,nid,min,max)) return 0; } } } else { BIO_printf(bio_err,"No template, please set one up.\n"); return 0; } return 1; } static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk, STACK_OF(CONF_VALUE) *attr_sk, int attribs) { int i; char *p,*q; char *type; CONF_VALUE *v; X509_NAME *subj; subj = X509_REQ_get_subject_name(req); for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) { v=sk_CONF_VALUE_value(dn_sk,i); p=q=NULL; type=v->name; /* Skip past any leading X. X: X, etc to allow for * multiple instances */ for(p = v->name; *p ; p++) if ((*p == ':') || (*p == ',') || (*p == '.')) { p++; if(*p) type = p; break; } if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC, (unsigned char *) v->value,-1,-1,0)) return 0; } if (!X509_NAME_entry_count(subj)) { BIO_printf(bio_err,"error, no objects specified in config file\n"); return 0; } if (attribs) { for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) { v=sk_CONF_VALUE_value(attr_sk,i); if(!X509_REQ_add1_attr_by_txt(req, v->name, MBSTRING_ASC, (unsigned char *)v->value, -1)) return 0; } } return 1; } static int add_DN_object(X509_NAME *n, char *text, char *def, char *value, int nid, int min, int max) { int i,ret=0; MS_STATIC char buf[1024]; start: BIO_printf(bio_err,"%s [%s]:",text,def); (void)BIO_flush(bio_err); if (value != NULL) { strcpy(buf,value); strcat(buf,"\n"); BIO_printf(bio_err,"%s\n",value); } else { buf[0]='\0'; fgets(buf,1024,stdin); } if (buf[0] == '\0') return(0); else if (buf[0] == '\n') { if ((def == NULL) || (def[0] == '\0')) return(1); strcpy(buf,def); strcat(buf,"\n"); } else if ((buf[0] == '.') && (buf[1] == '\n')) return(1); i=strlen(buf); if (buf[i-1] != '\n') { BIO_printf(bio_err,"weird input :-(\n"); return(0); } buf[--i]='\0'; #ifdef CHARSET_EBCDIC ebcdic2ascii(buf, buf, i); #endif if(!req_check_len(i, min, max)) goto start; if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC, (unsigned char *) buf, -1,-1,0)) goto err; ret=1; err: return(ret); } static int add_attribute_object(X509_REQ *req, char *text, char *def, char *value, int nid, int min, int max) { int i; static char buf[1024]; start: BIO_printf(bio_err,"%s [%s]:",text,def); (void)BIO_flush(bio_err); if (value != NULL) { strcpy(buf,value); strcat(buf,"\n"); BIO_printf(bio_err,"%s\n",value); } else { buf[0]='\0'; fgets(buf,1024,stdin); } if (buf[0] == '\0') return(0); else if (buf[0] == '\n') { if ((def == NULL) || (def[0] == '\0')) return(1); strcpy(buf,def); strcat(buf,"\n"); } else if ((buf[0] == '.') && (buf[1] == '\n')) return(1); i=strlen(buf); if (buf[i-1] != '\n') { BIO_printf(bio_err,"weird input :-(\n"); return(0); } buf[--i]='\0'; if(!req_check_len(i, min, max)) goto start; if(!X509_REQ_add1_attr_by_NID(req, nid, MBSTRING_ASC, (unsigned char *)buf, -1)) { BIO_printf(bio_err, "Error adding attribute\n"); ERR_print_errors(bio_err); goto err; } return(1); err: return(0); } #ifndef NO_RSA static void MS_CALLBACK req_cb(int p, int n, void *arg) { char c='*'; if (p == 0) c='.'; if (p == 1) c='+'; if (p == 2) c='*'; if (p == 3) c='\n'; BIO_write((BIO *)arg,&c,1); (void)BIO_flush((BIO *)arg); #ifdef LINT p=n; #endif } #endif static int req_check_len(int len, int min, int max) { if (len < min) { BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min); return(0); } if ((max != 0) && (len > max)) { BIO_printf(bio_err,"string is too long, it needs to be less than %d bytes long\n",max); return(0); } return(1); } /* Check if the end of a string matches 'end' */ static int check_end(char *str, char *end) { int elen, slen; char *tmp; elen = strlen(end); slen = strlen(str); if(elen > slen) return 1; tmp = str + slen - elen; return strcmp(tmp, end); }