X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Freq.c;h=6fd28a2aba240656e8480921d7d584fc6b321df8;hp=d1f5dcb3450309e754c5944bd8cc16b19709cb7d;hb=eae1c647dfc9c39db52f7c4a61faa09e6cbea92a;hpb=2ac6115d9ee35308300b82d96078d03d81e7d320 diff --git a/apps/req.c b/apps/req.c index d1f5dcb345..6fd28a2aba 100644 --- a/apps/req.c +++ b/apps/req.c @@ -1,5 +1,5 @@ /* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy @@ -11,7 +11,9 @@ #include #include #include +#include #include "apps.h" +#include "progs.h" #include #include #include @@ -22,6 +24,7 @@ #include #include #include +#include #ifndef OPENSSL_NO_RSA # include #endif @@ -46,11 +49,11 @@ static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *dn, int mutlirdn, int attribs, unsigned long chtype); -static int build_subject(X509_REQ *req, char *subj, unsigned long chtype, +static int build_subject(X509_REQ *req, const char *subj, unsigned long chtype, int multirdn); 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, + STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect, + STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect, int attribs, unsigned long chtype); static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk, STACK_OF(CONF_VALUE) *attr, int attribs, @@ -62,27 +65,36 @@ static int add_DN_object(X509_NAME *n, char *text, const char *def, char *value, int nid, int n_min, int n_max, unsigned long chtype, int mval); static int genpkey_cb(EVP_PKEY_CTX *ctx); +static int build_data(char *text, const char *def, + char *value, int n_min, int n_max, + char *buf, const int buf_size, + const char *desc1, const char *desc2 + ); static int req_check_len(int len, int n_min, int n_max); static int check_end(const char *str, const char *end); +static int join(char buf[], size_t buf_size, const char *name, + const char *tail, const char *desc); static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, int *pkey_type, long *pkeylen, char **palgnam, ENGINE *keygen_engine); static CONF *req_conf = NULL; +static CONF *addext_conf = NULL; static int batch = 0; typedef enum OPTION_choice { OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY, OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT, - OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_RAND, OPT_NEWKEY, + OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY, OPT_PKEYOPT, OPT_SIGOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS, OPT_VERIFY, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8, OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509, - OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_EXTENSIONS, - OPT_REQEXTS, OPT_MD + OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_ADDEXT, OPT_EXTENSIONS, + OPT_REQEXTS, OPT_PRECERT, OPT_MD, + OPT_R_ENUM } OPTION_CHOICE; -OPTIONS req_options[] = { +const OPTIONS req_options[] = { {"help", OPT_HELP, '-', "Display this summary"}, {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"}, {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"}, @@ -96,8 +108,7 @@ OPTIONS req_options[] = { {"keyout", OPT_KEYOUT, '>', "File to send the key to"}, {"passin", OPT_PASSIN, 's', "Private key password source"}, {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, - {"rand", OPT_RAND, 's', - "Load the file(s) into the random number generator"}, + OPT_R_OPTIONS, {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"}, {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"}, {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"}, @@ -121,11 +132,14 @@ OPTIONS req_options[] = { {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-', "Enable support for multivalued RDNs"}, {"days", OPT_DAYS, 'p', "Number of days cert is valid for"}, - {"set_serial", OPT_SET_SERIAL, 'p', "Serial number to use"}, + {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"}, + {"addext", OPT_ADDEXT, 's', + "Additional cert extension key=value pair (may be given more than once)"}, {"extensions", OPT_EXTENSIONS, 's', "Cert extension section (override value in config file)"}, {"reqexts", OPT_REQEXTS, 's', "Request extension section (override value in config file)"}, + {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"}, {"", OPT_MD, '-', "Any supported digest"}, #ifndef OPENSSL_NO_ENGINE {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, @@ -135,6 +149,66 @@ OPTIONS req_options[] = { {NULL} }; + +/* + * An LHASH of strings, where each string is an extension name. + */ +static unsigned long ext_name_hash(const OPENSSL_STRING *a) +{ + return OPENSSL_LH_strhash((const char *)a); +} + +static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b) +{ + return strcmp((const char *)a, (const char *)b); +} + +static void exts_cleanup(OPENSSL_STRING *x) +{ + OPENSSL_free((char *)x); +} + +/* + * Is the |kv| key already duplicated? This is remarkably tricky to get + * right. Return 0 if unique, -1 on runtime error; 1 if found or a syntax + * error. + */ +static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv) +{ + char *p; + size_t off; + + /* Check syntax. */ + /* Skip leading whitespace, make a copy. */ + while (*kv && isspace(*kv)) + if (*++kv == '\0') + return 1; + if ((p = strchr(kv, '=')) == NULL) + return 1; + off = p - kv; + if ((kv = OPENSSL_strdup(kv)) == NULL) + return -1; + + /* Skip trailing space before the equal sign. */ + for (p = kv + off; p > kv; --p) + if (!isspace(p[-1])) + break; + if (p == kv) { + OPENSSL_free(kv); + return 1; + } + *p = '\0'; + + /* Finally have a clean "key"; see if it's there [by attempt to add it]. */ + if ((p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING*)kv)) + != NULL || lh_OPENSSL_STRING_error(addexts)) { + OPENSSL_free(p != NULL ? p : kv); + return -1; + } + + return 0; +} + int req_main(int argc, char **argv) { ASN1_INTEGER *serial = NULL; @@ -143,12 +217,14 @@ int req_main(int argc, char **argv) EVP_PKEY *pkey = NULL; EVP_PKEY_CTX *genctx = NULL; STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL; + LHASH_OF(OPENSSL_STRING) *addexts = NULL; X509 *x509ss = NULL; X509_REQ *req = NULL; const EVP_CIPHER *cipher = NULL; const EVP_MD *md_alg = NULL, *digest = NULL; + BIO *addext_bio = NULL; char *extensions = NULL, *infile = NULL; - char *outfile = NULL, *keyfile = NULL, *inrand = NULL; + char *outfile = NULL, *keyfile = NULL; char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL; char *passin = NULL, *passout = NULL; char *nofree_passin = NULL, *nofree_passout = NULL; @@ -156,14 +232,13 @@ int req_main(int argc, char **argv) char *template = default_config_file, *keyout = NULL; const char *keyalg = NULL; OPTION_CHOICE o; - int ret = 1, x509 = 0, days = 30, i = 0, newreq = 0, verbose = 0; + int ret = 1, x509 = 0, days = 0, i = 0, newreq = 0, verbose = 0; int pkey_type = -1, private = 0; int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM; int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0; - int nodes = 0, newhdr = 0, subject = 0, pubkey = 0; + int nodes = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0; long newkey = -1; - unsigned long chtype = MBSTRING_ASC, nmflag = 0, reqflag = 0; - char nmflag_set = 0; + unsigned long chtype = MBSTRING_ASC, reqflag = 0; #ifndef OPENSSL_NO_DES cipher = EVP_des_ede3_cbc(); @@ -232,8 +307,9 @@ int req_main(int argc, char **argv) case OPT_PASSOUT: passargout = opt_arg(); break; - case OPT_RAND: - inrand = opt_arg(); + case OPT_R_CASES: + if (!opt_rand(o)) + goto end; break; case OPT_NEWKEY: keyalg = opt_arg(); @@ -276,8 +352,7 @@ int req_main(int argc, char **argv) chtype = MBSTRING_UTF8; break; case OPT_NAMEOPT: - nmflag_set = 1; - if (!set_name_ex(&nmflag, opt_arg())) + if (!set_nameopt(opt_arg())) goto opthelp; break; case OPT_REQOPT: @@ -294,6 +369,10 @@ int req_main(int argc, char **argv) days = atoi(opt_arg()); break; case OPT_SET_SERIAL: + if (serial != NULL) { + BIO_printf(bio_err, "Serial number supplied twice\n"); + goto opthelp; + } serial = s2i_ASN1_INTEGER(NULL, opt_arg()); if (serial == NULL) goto opthelp; @@ -307,12 +386,29 @@ int req_main(int argc, char **argv) case OPT_MULTIVALUE_RDN: multirdn = 1; break; + case OPT_ADDEXT: + p = opt_arg(); + if (addexts == NULL) { + addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp); + addext_bio = BIO_new(BIO_s_mem()); + if (addexts == NULL || addext_bio == NULL) + goto end; + } + i = duplicated(addexts, p); + if (i == 1) + goto opthelp; + if (i < 0 || BIO_printf(addext_bio, "%s\n", opt_arg()) < 0) + goto end; + break; case OPT_EXTENSIONS: extensions = opt_arg(); break; case OPT_REQEXTS: req_exts = opt_arg(); break; + case OPT_PRECERT: + newreq = precert = 1; + break; case OPT_MD: if (!opt_md(opt_unknown(), &md_alg)) goto opthelp; @@ -324,10 +420,12 @@ int req_main(int argc, char **argv) if (argc != 0) goto opthelp; - if (!nmflag_set) - nmflag = XN_FLAG_ONELINE; + if (days && !x509) + BIO_printf(bio_err, "Ignoring -days; not generating a certificate\n"); + if (x509 && infile == NULL) + newreq = 1; - /* TODO: simplify this as pkey is still always NULL here */ + /* TODO: simplify this as pkey is still always NULL here */ private = newreq && (pkey == NULL) ? 1 : 0; if (!app_passwd(passargin, passargout, &passin, &passout)) { @@ -338,6 +436,12 @@ int req_main(int argc, char **argv) if (verbose) BIO_printf(bio_err, "Using configuration from %s\n", template); req_conf = app_load_config(template); + if (addext_bio) { + if (verbose) + BIO_printf(bio_err, + "Using additional configuration from command line\n"); + addext_conf = app_load_config_bio(addext_bio, NULL); + } if (template != default_config_file && !app_load_modules(req_conf)) goto end; @@ -365,21 +469,21 @@ int req_main(int argc, char **argv) if (md_alg == NULL) { p = NCONF_get_string(req_conf, SECTION, "default_md"); - if (p == NULL) + if (p == NULL) { ERR_clear_error(); - else { + } else { if (!opt_md(p, &md_alg)) goto opthelp; digest = md_alg; } } - if (!extensions) { + if (extensions == NULL) { extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS); - if (!extensions) + if (extensions == NULL) ERR_clear_error(); } - if (extensions) { + if (extensions != NULL) { /* Check syntax of file */ X509V3_CTX ctx; X509V3_set_ctx_test(&ctx); @@ -390,6 +494,16 @@ int req_main(int argc, char **argv) goto end; } } + if (addext_conf != NULL) { + /* Check syntax of command line extensions */ + X509V3_CTX ctx; + X509V3_set_ctx_test(&ctx); + X509V3_set_nconf(&ctx, addext_conf); + if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) { + BIO_printf(bio_err, "Error Loading command line extensions\n"); + goto end; + } + } if (passin == NULL) { passin = nofree_passin = @@ -406,28 +520,28 @@ int req_main(int argc, char **argv) } p = NCONF_get_string(req_conf, SECTION, STRING_MASK); - if (!p) + if (p == NULL) ERR_clear_error(); - if (p && !ASN1_STRING_set_default_mask_asc(p)) { + if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) { BIO_printf(bio_err, "Invalid global string mask setting %s\n", p); goto end; } if (chtype != MBSTRING_UTF8) { p = NCONF_get_string(req_conf, SECTION, UTF8_IN); - if (!p) + if (p == NULL) ERR_clear_error(); else if (strcmp(p, "yes") == 0) chtype = MBSTRING_UTF8; } - if (!req_exts) { + if (req_exts == NULL) { req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS); - if (!req_exts) + if (req_exts == NULL) ERR_clear_error(); } - if (req_exts) { + if (req_exts != NULL) { /* Check syntax of file */ X509V3_CTX ctx; X509V3_set_ctx_test(&ctx); @@ -442,33 +556,25 @@ int req_main(int argc, char **argv) if (keyfile != NULL) { pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key"); - if (!pkey) { + if (pkey == NULL) { /* load_key() has already printed an appropriate message */ goto end; } else { - char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE"); - if (randfile == NULL) - ERR_clear_error(); - app_RAND_load_file(randfile, 0); + app_RAND_load_conf(req_conf, SECTION); } } if (newreq && (pkey == NULL)) { - char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE"); - if (randfile == NULL) - ERR_clear_error(); - app_RAND_load_file(randfile, 0); - if (inrand) - app_RAND_load_files(inrand); + app_RAND_load_conf(req_conf, SECTION); if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) { newkey = DEFAULT_KEY_LENGTH; } - if (keyalg) { + if (keyalg != NULL) { genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey, &keyalgstr, gen_eng); - if (!genctx) + if (genctx == NULL) goto end; } @@ -480,14 +586,28 @@ int req_main(int argc, char **argv) goto end; } - if (!genctx) { + if (pkey_type == EVP_PKEY_RSA && newkey > OPENSSL_RSA_MAX_MODULUS_BITS) + BIO_printf(bio_err, + "Warning: It is not recommended to use more than %d bit for RSA keys.\n" + " Your key size is %ld! Larger key size may behave not as expected.\n", + OPENSSL_RSA_MAX_MODULUS_BITS, newkey); + +#ifndef OPENSSL_NO_DSA + if (pkey_type == EVP_PKEY_DSA && newkey > OPENSSL_DSA_MAX_MODULUS_BITS) + BIO_printf(bio_err, + "Warning: It is not recommended to use more than %d bit for DSA keys.\n" + " Your key size is %ld! Larger key size may behave not as expected.\n", + OPENSSL_DSA_MAX_MODULUS_BITS, newkey); +#endif + + if (genctx == NULL) { genctx = set_keygen_ctx(NULL, &pkey_type, &newkey, &keyalgstr, gen_eng); if (!genctx) goto end; } - if (pkeyopts) { + if (pkeyopts != NULL) { char *genopt; for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) { genopt = sk_OPENSSL_STRING_value(pkeyopts, i); @@ -502,8 +622,7 @@ int req_main(int argc, char **argv) if (pkey_type == EVP_PKEY_EC) { BIO_printf(bio_err, "Generating an EC private key\n"); } else { - BIO_printf(bio_err, "Generating a %ld bit %s private key\n", - newkey, keyalgstr); + BIO_printf(bio_err, "Generating a %s private key\n", keyalgstr); } EVP_PKEY_CTX_set_cb(genctx, genpkey_cb); @@ -517,8 +636,6 @@ int req_main(int argc, char **argv) EVP_PKEY_CTX_free(genctx); genctx = NULL; - app_RAND_write_file(randfile); - if (keyout == NULL) { keyout = NCONF_get_string(req_conf, SECTION, KEYFILE); if (keyout == NULL) @@ -604,9 +721,10 @@ int req_main(int argc, char **argv) goto end; /* Set version to V3 */ - if (extensions && !X509_set_version(x509ss, 2)) + if ((extensions != NULL || addext_conf != NULL) + && !X509_set_version(x509ss, 2)) goto end; - if (serial) { + if (serial != NULL) { if (!X509_set_serialNumber(x509ss, serial)) goto end; } else { @@ -616,9 +734,11 @@ int req_main(int argc, char **argv) if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req))) goto end; - if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0)) - goto end; - if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL)) + if (days == 0) { + /* set default days if it's not specified */ + days = 30; + } + if (!set_cert_times(x509ss, NULL, NULL, days)) goto end; if (!X509_set_subject_name (x509ss, X509_REQ_get_subject_name(req))) @@ -633,13 +753,28 @@ int req_main(int argc, char **argv) X509V3_set_nconf(&ext_ctx, req_conf); /* Add extensions */ - if (extensions && !X509V3_EXT_add_nconf(req_conf, - &ext_ctx, extensions, - x509ss)) { + if (extensions != NULL && !X509V3_EXT_add_nconf(req_conf, + &ext_ctx, extensions, + x509ss)) { BIO_printf(bio_err, "Error Loading extension section %s\n", extensions); goto end; } + if (addext_conf != NULL + && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default", + x509ss)) { + BIO_printf(bio_err, "Error Loading command line extensions\n"); + goto end; + } + + /* If a pre-cert was requested, we need to add a poison extension */ + if (precert) { + if (X509_add1_ext_i2d(x509ss, NID_ct_precert_poison, NULL, 1, 0) + != 1) { + BIO_printf(bio_err, "Error adding poison extension\n"); + goto end; + } + } i = do_X509_sign(x509ss, pkey, digest, sigopts); if (!i) { @@ -655,13 +790,19 @@ int req_main(int argc, char **argv) X509V3_set_nconf(&ext_ctx, req_conf); /* Add extensions */ - if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf, - &ext_ctx, req_exts, - req)) { + if (req_exts != NULL + && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx, + req_exts, req)) { BIO_printf(bio_err, "Error Loading extension section %s\n", req_exts); goto end; } + if (addext_conf != NULL + && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default", + req)) { + BIO_printf(bio_err, "Error Loading command line extensions\n"); + goto end; + } i = do_X509_REQ_sign(req, pkey, digest, sigopts); if (!i) { ERR_print_errors(bio_err); @@ -679,7 +820,7 @@ int req_main(int argc, char **argv) if (verbose) { BIO_printf(bio_err, "Modifying Request's Subject\n"); print_name(bio_err, "old subject=", - X509_REQ_get_subject_name(req), nmflag); + X509_REQ_get_subject_name(req), get_nameopt()); } if (build_subject(req, subj, chtype, multirdn) == 0) { @@ -690,7 +831,7 @@ int req_main(int argc, char **argv) if (verbose) { print_name(bio_err, "new subject=", - X509_REQ_get_subject_name(req), nmflag); + X509_REQ_get_subject_name(req), get_nameopt()); } } @@ -710,8 +851,9 @@ int req_main(int argc, char **argv) } else if (i == 0) { BIO_printf(bio_err, "verify failure\n"); ERR_print_errors(bio_err); - } else /* if (i > 0) */ + } else { /* if (i > 0) */ BIO_printf(bio_err, "verify OK\n"); + } } if (noout && !text && !modulus && !subject && !pubkey) { @@ -727,40 +869,39 @@ int req_main(int argc, char **argv) goto end; if (pubkey) { - EVP_PKEY *tpubkey; - tpubkey = X509_REQ_get_pubkey(req); + EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req); + if (tpubkey == NULL) { BIO_printf(bio_err, "Error getting public key\n"); ERR_print_errors(bio_err); goto end; } PEM_write_bio_PUBKEY(out, tpubkey); - EVP_PKEY_free(tpubkey); } if (text) { if (x509) - X509_print_ex(out, x509ss, nmflag, reqflag); + X509_print_ex(out, x509ss, get_nameopt(), reqflag); else - X509_REQ_print_ex(out, req, nmflag, reqflag); + X509_REQ_print_ex(out, req, get_nameopt(), reqflag); } if (subject) { if (x509) print_name(out, "subject=", X509_get_subject_name(x509ss), - nmflag); + get_nameopt()); else print_name(out, "subject=", X509_REQ_get_subject_name(req), - nmflag); + get_nameopt()); } if (modulus) { EVP_PKEY *tpubkey; if (x509) - tpubkey = X509_get_pubkey(x509ss); + tpubkey = X509_get0_pubkey(x509ss); else - tpubkey = X509_REQ_get_pubkey(req); + tpubkey = X509_REQ_get0_pubkey(req); if (tpubkey == NULL) { fprintf(stdout, "Modulus=unavailable\n"); goto end; @@ -774,7 +915,6 @@ int req_main(int argc, char **argv) } else #endif fprintf(stdout, "Wrong Algorithm type"); - EVP_PKEY_free(tpubkey); fprintf(stdout, "\n"); } @@ -806,12 +946,16 @@ int req_main(int argc, char **argv) ERR_print_errors(bio_err); } NCONF_free(req_conf); + NCONF_free(addext_conf); + BIO_free(addext_bio); BIO_free(in); BIO_free_all(out); EVP_PKEY_free(pkey); EVP_PKEY_CTX_free(genctx); sk_OPENSSL_STRING_free(pkeyopts); sk_OPENSSL_STRING_free(sigopts); + lh_OPENSSL_STRING_doall(addexts, exts_cleanup); + lh_OPENSSL_STRING_free(addexts); #ifndef OPENSSL_NO_ENGINE ENGINE_free(gen_eng); #endif @@ -819,11 +963,12 @@ int req_main(int argc, char **argv) X509_REQ_free(req); X509_free(x509ss); ASN1_INTEGER_free(serial); + release_engine(e); if (passin != nofree_passin) OPENSSL_free(passin); if (passout != nofree_passout) OPENSSL_free(passout); - return (ret); + return ret; } static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn, @@ -883,14 +1028,14 @@ static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn, ret = 1; err: - return (ret); + return ret; } /* * subject is expected to be in the format /type0=value0/type1=value1/type2=... * where characters may be escaped by \ */ -static int build_subject(X509_REQ *req, char *subject, unsigned long chtype, +static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype, int multirdn) { X509_NAME *n; @@ -907,8 +1052,8 @@ static int build_subject(X509_REQ *req, char *subject, unsigned long chtype, } 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, + STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect, + STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect, int attribs, unsigned long chtype) { int i; @@ -939,7 +1084,8 @@ static int prompt_info(X509_REQ *req, if (sk_CONF_VALUE_num(dn_sk)) { i = -1; - start:for (;;) { + start: + for ( ; ; ) { i++; if (sk_CONF_VALUE_num(dn_sk) <= i) break; @@ -964,35 +1110,36 @@ static int prompt_info(X509_REQ *req, if (*type == '+') { mval = -1; type++; - } else + } else { mval = 0; + } /* If OBJ not recognised ignore it */ if ((nid = OBJ_txt2nid(type)) == NID_undef) goto start; - if (BIO_snprintf(buf, sizeof buf, "%s_default", v->name) - >= (int)sizeof(buf)) { - BIO_printf(bio_err, "Name '%s' too long\n", v->name); + if (!join(buf, sizeof(buf), v->name, "_default", "Name")) return 0; - } - if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { ERR_clear_error(); def = ""; } - BIO_snprintf(buf, sizeof buf, "%s_value", v->name); + if (!join(buf, sizeof(buf), v->name, "_value", "Name")) + return 0; if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) { ERR_clear_error(); value = NULL; } - BIO_snprintf(buf, sizeof buf, "%s_min", v->name); + if (!join(buf, sizeof(buf), v->name, "_min", "Name")) + return 0; if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) { ERR_clear_error(); n_min = -1; } - BIO_snprintf(buf, sizeof buf, "%s_max", v->name); + + if (!join(buf, sizeof(buf), v->name, "_max", "Name")) + return 0; if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) { ERR_clear_error(); n_max = -1; @@ -1018,7 +1165,8 @@ static int prompt_info(X509_REQ *req, } i = -1; - start2: for (;;) { + start2: + for ( ; ; ) { i++; if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i)) break; @@ -1028,32 +1176,31 @@ static int prompt_info(X509_REQ *req, if ((nid = OBJ_txt2nid(type)) == NID_undef) goto start2; - if (BIO_snprintf(buf, sizeof buf, "%s_default", type) - >= (int)sizeof(buf)) { - BIO_printf(bio_err, "Name '%s' too long\n", v->name); + if (!join(buf, sizeof(buf), type, "_default", "Name")) return 0; - } - if ((def = NCONF_get_string(req_conf, attr_sect, buf)) == NULL) { ERR_clear_error(); def = ""; } - BIO_snprintf(buf, sizeof buf, "%s_value", type); + if (!join(buf, sizeof(buf), type, "_value", "Name")) + return 0; if ((value = NCONF_get_string(req_conf, attr_sect, buf)) == NULL) { ERR_clear_error(); value = NULL; } - BIO_snprintf(buf, sizeof buf, "%s_min", type); + if (!join(buf, sizeof(buf), type,"_min", "Name")) + return 0; if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) { ERR_clear_error(); n_min = -1; } - BIO_snprintf(buf, sizeof buf, "%s_max", type); + if (!join(buf, sizeof(buf), type, "_max", "Name")) + return 0; if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) { ERR_clear_error(); n_max = -1; @@ -1109,15 +1256,16 @@ static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk, } } #ifndef CHARSET_EBCDIC - plus_char = (*p == '+'); + plus_char = (*type == '+'); #else - plus_char = (*p == os_toascii['+']); + plus_char = (*type == os_toascii['+']); #endif if (plus_char) { - p++; + type++; mval = -1; - } else + } else { mval = 0; + } if (!X509_NAME_add_entry_by_txt(subj, type, chtype, (unsigned char *)v->value, -1, -1, mval)) @@ -1144,79 +1292,65 @@ static int add_DN_object(X509_NAME *n, char *text, const char *def, char *value, int nid, int n_min, int n_max, unsigned long chtype, int mval) { - int i, ret = 0; + int ret = 0; char buf[1024]; - start: - if (!batch) - BIO_printf(bio_err, "%s [%s]:", text, def); - (void)BIO_flush(bio_err); - if (value != NULL) { - OPENSSL_strlcpy(buf, value, sizeof buf); - OPENSSL_strlcat(buf, "\n", sizeof buf); - BIO_printf(bio_err, "%s\n", value); - } else { - buf[0] = '\0'; - if (!batch) { - if (!fgets(buf, sizeof buf, stdin)) - return 0; - } else { - buf[0] = '\n'; - buf[1] = '\0'; - } - } - - if (buf[0] == '\0') - return (0); - else if (buf[0] == '\n') { - if ((def == NULL) || (def[0] == '\0')) - return (1); - OPENSSL_strlcpy(buf, def, sizeof buf); - OPENSSL_strlcat(buf, "\n", sizeof buf); - } 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, n_min, n_max)) { - if (batch || value) - return 0; - goto start; - } + ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf), + "DN value", "DN default"); + if ((ret == 0) || (ret == 1)) + return ret; + ret = 1; if (!X509_NAME_add_entry_by_NID(n, nid, chtype, (unsigned char *)buf, -1, -1, mval)) - goto err; - ret = 1; - err: - return (ret); + ret = 0; + + return ret; } static int add_attribute_object(X509_REQ *req, char *text, const char *def, char *value, int nid, int n_min, int n_max, unsigned long chtype) { - int i; - static char buf[1024]; + int ret = 0; + char buf[1024]; + ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf), + "Attribute value", "Attribute default"); + if ((ret == 0) || (ret == 1)) + return ret; + ret = 1; + + if (!X509_REQ_add1_attr_by_NID(req, nid, chtype, + (unsigned char *)buf, -1)) { + BIO_printf(bio_err, "Error adding attribute\n"); + ERR_print_errors(bio_err); + ret = 0; + } + + return ret; +} + + +static int build_data(char *text, const char *def, + char *value, int n_min, int n_max, + char *buf, const int buf_size, + const char *desc1, const char *desc2 + ) +{ + int i; start: if (!batch) BIO_printf(bio_err, "%s [%s]:", text, def); (void)BIO_flush(bio_err); if (value != NULL) { - OPENSSL_strlcpy(buf, value, sizeof buf); - OPENSSL_strlcat(buf, "\n", sizeof buf); + if (!join(buf, buf_size, value, "\n", desc1)) + return 0; BIO_printf(bio_err, "%s\n", value); } else { buf[0] = '\0'; if (!batch) { - if (!fgets(buf, sizeof buf, stdin)) + if (!fgets(buf, buf_size, stdin)) return 0; } else { buf[0] = '\n'; @@ -1225,19 +1359,20 @@ static int add_attribute_object(X509_REQ *req, char *text, const char *def, } if (buf[0] == '\0') - return (0); - else if (buf[0] == '\n') { + return 0; + if (buf[0] == '\n') { if ((def == NULL) || (def[0] == '\0')) - return (1); - OPENSSL_strlcpy(buf, def, sizeof buf); - OPENSSL_strlcat(buf, "\n", sizeof buf); - } else if ((buf[0] == '.') && (buf[1] == '\n')) - return (1); + return 1; + if (!join(buf, buf_size, def, "\n", desc2)) + return 0; + } 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); + return 0; } buf[--i] = '\0'; #ifdef CHARSET_EBCDIC @@ -1248,17 +1383,7 @@ static int add_attribute_object(X509_REQ *req, char *text, const char *def, return 0; goto start; } - - if (!X509_REQ_add1_attr_by_NID(req, nid, chtype, - (unsigned char *)buf, -1)) { - BIO_printf(bio_err, "Error adding attribute\n"); - ERR_print_errors(bio_err); - goto err; - } - - return (1); - err: - return (0); + return 2; } static int req_check_len(int len, int n_min, int n_max) @@ -1267,22 +1392,23 @@ static int req_check_len(int len, int n_min, int n_max) BIO_printf(bio_err, "string is too short, it needs to be at least %d bytes long\n", n_min); - return (0); + return 0; } if ((n_max >= 0) && (len > n_max)) { BIO_printf(bio_err, - "string is too long, it needs to be less than %d bytes long\n", + "string is too long, it needs to be no more than %d bytes long\n", n_max); - return (0); + return 0; } - return (1); + return 1; } /* Check if the end of a string matches 'end' */ static int check_end(const char *str, const char *end) { - int elen, slen; + size_t elen, slen; const char *tmp; + elen = strlen(end); slen = strlen(str); if (elen > slen) @@ -1291,6 +1417,24 @@ static int check_end(const char *str, const char *end) return strcmp(tmp, end); } +/* + * Merge the two strings together into the result buffer checking for + * overflow and producing an error message if there is. + */ +static int join(char buf[], size_t buf_size, const char *name, + const char *tail, const char *desc) +{ + const size_t name_len = strlen(name), tail_len = strlen(tail); + + if (name_len + tail_len + 1 > buf_size) { + BIO_printf(bio_err, "%s '%s' too long\n", desc, name); + return 0; + } + memcpy(buf, name, name_len); + memcpy(buf + name_len, tail, tail_len + 1); + return 1; +} + static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, int *pkey_type, long *pkeylen, char **palgnam, ENGINE *keygen_engine) @@ -1308,15 +1452,15 @@ static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, *pkey_type = EVP_PKEY_RSA; keylen = atol(gstr); *pkeylen = keylen; - } else if (strncmp(gstr, "param:", 6) == 0) + } else if (strncmp(gstr, "param:", 6) == 0) { paramfile = gstr + 6; - else { + } else { const char *p = strchr(gstr, ':'); int len; ENGINE *tmpeng; const EVP_PKEY_ASN1_METHOD *ameth; - if (p) + if (p != NULL) len = p - gstr; else len = strlen(gstr); @@ -1327,7 +1471,7 @@ static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len); - if (!ameth) { + if (ameth == NULL) { BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr); return NULL; } @@ -1337,28 +1481,31 @@ static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, ENGINE_finish(tmpeng); #endif if (*pkey_type == EVP_PKEY_RSA) { - if (p) { + if (p != NULL) { keylen = atol(p + 1); *pkeylen = keylen; - } else + } else { keylen = *pkeylen; - } else if (p) + } + } else if (p != NULL) { paramfile = p + 1; + } } - if (paramfile) { + if (paramfile != NULL) { pbio = BIO_new_file(paramfile, "r"); - if (!pbio) { + if (pbio == NULL) { BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile); return NULL; } param = PEM_read_bio_Parameters(pbio, NULL); - if (!param) { + if (param == NULL) { X509 *x; + (void)BIO_reset(pbio); x = PEM_read_bio_X509(pbio, NULL, NULL, NULL); - if (x) { + if (x != NULL) { param = X509_get_pubkey(x); X509_free(x); } @@ -1366,25 +1513,26 @@ static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, BIO_free(pbio); - if (!param) { + if (param == NULL) { BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile); return NULL; } - if (*pkey_type == -1) + if (*pkey_type == -1) { *pkey_type = EVP_PKEY_id(param); - else if (*pkey_type != EVP_PKEY_base_id(param)) { + } else if (*pkey_type != EVP_PKEY_base_id(param)) { BIO_printf(bio_err, "Key Type does not match parameters\n"); EVP_PKEY_free(param); return NULL; } } - if (palgnam) { + if (palgnam != NULL) { const EVP_PKEY_ASN1_METHOD *ameth; ENGINE *tmpeng; const char *anam; + ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type); - if (!ameth) { + if (ameth == NULL) { BIO_puts(bio_err, "Internal error: can't find key algorithm\n"); return NULL; } @@ -1395,12 +1543,13 @@ static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr, #endif } - if (param) { + if (param != NULL) { gctx = EVP_PKEY_CTX_new(param, keygen_engine); *pkeylen = EVP_PKEY_bits(param); EVP_PKEY_free(param); - } else + } else { gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine); + } if (gctx == NULL) { BIO_puts(bio_err, "Error allocating keygen context\n"); @@ -1451,10 +1600,19 @@ static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey, const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts) { EVP_PKEY_CTX *pkctx = NULL; - int i; + int i, def_nid; if (ctx == NULL) return 0; + /* + * EVP_PKEY_get_default_digest_nid() returns 2 if the digest is mandatory + * for this algorithm. + */ + if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) == 2 + && def_nid == NID_undef) { + /* The signing algorithm requires there to be no digest */ + md = NULL; + } if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey)) return 0; for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {