crypto/x509/t_x509.c

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include "internal/cryptlib.h"
  12 #include <openssl/buffer.h>
  13 #include <openssl/bn.h>
  14 #include <openssl/objects.h>
  15 #include <openssl/x509.h>
  16 #include <openssl/x509v3.h>
  17 #include "internal/asn1_int.h"
  18
  19 #ifndef OPENSSL_NO_STDIO
  20 int X509_print_fp(FILE *fp, X509 *x)
  21 {
  22     return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  23 }
  24
  25 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag,
  26                      unsigned long cflag)
  27 {
  28     BIO *b;
  29     int ret;
  30
  31     if ((b = BIO_new(BIO_s_file())) == NULL) {
  32         X509err(X509_F_X509_PRINT_EX_FP, ERR_R_BUF_LIB);
  33         return (0);
  34     }
  35     BIO_set_fp(b, fp, BIO_NOCLOSE);
  36     ret = X509_print_ex(b, x, nmflag, cflag);
  37     BIO_free(b);
  38     return (ret);
  39 }
  40 #endif
  41
  42 int X509_print(BIO *bp, X509 *x)
  43 {
  44     return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  45 }
  46
  47 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,
  48                   unsigned long cflag)
  49 {
  50     long l;
  51     int ret = 0, i;
  52     char *m = NULL, mlch = ' ';
  53     int nmindent = 0;
  54     ASN1_INTEGER *bs;
  55     EVP_PKEY *pkey = NULL;
  56     const char *neg;
  57
  58     if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
  59         mlch = '\n';
  60         nmindent = 12;
  61     }
  62
  63     if (nmflags == X509_FLAG_COMPAT)
  64         nmindent = 16;
  65
  66     if (!(cflag & X509_FLAG_NO_HEADER)) {
  67         if (BIO_write(bp, "Certificate:\n", 13) <= 0)
  68             goto err;
  69         if (BIO_write(bp, "    Data:\n", 10) <= 0)
  70             goto err;
  71     }
  72     if (!(cflag & X509_FLAG_NO_VERSION)) {
  73         l = X509_get_version(x);
  74         if (BIO_printf(bp, "%8sVersion: %lu (0x%lx)\n", "", l + 1, l) <= 0)
  75             goto err;
  76     }
  77     if (!(cflag & X509_FLAG_NO_SERIAL)) {
  78
  79         if (BIO_write(bp, "        Serial Number:", 22) <= 0)
  80             goto err;
  81
  82         bs = X509_get_serialNumber(x);
  83         if (bs->length <= (int)sizeof(long)) {
  84                 ERR_set_mark();
  85                 l = ASN1_INTEGER_get(bs);
  86                 ERR_pop_to_mark();
  87         } else {
  88             l = -1;
  89         }
  90         if (l != -1) {
  91             if (bs->type == V_ASN1_NEG_INTEGER) {
  92                 l = -l;
  93                 neg = "-";
  94             } else
  95                 neg = "";
  96             if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, l, neg, l) <= 0)
  97                 goto err;
  98         } else {
  99             neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
 100             if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
 101                 goto err;
 102
 103             for (i = 0; i < bs->length; i++) {
 104                 if (BIO_printf(bp, "%02x%c", bs->data[i],
 105                                ((i + 1 == bs->length) ? '\n' : ':')) <= 0)
 106                     goto err;
 107             }
 108         }
 109
 110     }
 111
 112     if (!(cflag & X509_FLAG_NO_SIGNAME)) {
 113         const X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);
 114         if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
 115             goto err;
 116     }
 117
 118     if (!(cflag & X509_FLAG_NO_ISSUER)) {
 119         if (BIO_printf(bp, "        Issuer:%c", mlch) <= 0)
 120             goto err;
 121         if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
 122             < 0)
 123             goto err;
 124         if (BIO_write(bp, "\n", 1) <= 0)
 125             goto err;
 126     }
 127     if (!(cflag & X509_FLAG_NO_VALIDITY)) {
 128         if (BIO_write(bp, "        Validity\n", 17) <= 0)
 129             goto err;
 130         if (BIO_write(bp, "            Not Before: ", 24) <= 0)
 131             goto err;
 132         if (!ASN1_TIME_print(bp, X509_get0_notBefore(x)))
 133             goto err;
 134         if (BIO_write(bp, "\n            Not After : ", 25) <= 0)
 135             goto err;
 136         if (!ASN1_TIME_print(bp, X509_get0_notAfter(x)))
 137             goto err;
 138         if (BIO_write(bp, "\n", 1) <= 0)
 139             goto err;
 140     }
 141     if (!(cflag & X509_FLAG_NO_SUBJECT)) {
 142         if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
 143             goto err;
 144         if (X509_NAME_print_ex
 145             (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
 146             goto err;
 147         if (BIO_write(bp, "\n", 1) <= 0)
 148             goto err;
 149     }
 150     if (!(cflag & X509_FLAG_NO_PUBKEY)) {
 151         X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
 152         ASN1_OBJECT *xpoid;
 153         X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
 154         if (BIO_write(bp, "        Subject Public Key Info:\n", 33) <= 0)
 155             goto err;
 156         if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
 157             goto err;
 158         if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
 159             goto err;
 160         if (BIO_puts(bp, "\n") <= 0)
 161             goto err;
 162
 163         pkey = X509_get0_pubkey(x);
 164         if (pkey == NULL) {
 165             BIO_printf(bp, "%12sUnable to load Public Key\n", "");
 166             ERR_print_errors(bp);
 167         } else {
 168             EVP_PKEY_print_public(bp, pkey, 16, NULL);
 169         }
 170     }
 171
 172     if (!(cflag & X509_FLAG_NO_IDS)) {
 173         const ASN1_BIT_STRING *iuid, *suid;
 174         X509_get0_uids(x, &iuid, &suid);
 175         if (iuid != NULL) {
 176             if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
 177                 goto err;
 178             if (!X509_signature_dump(bp, iuid, 12))
 179                 goto err;
 180         }
 181         if (suid != NULL) {
 182             if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
 183                 goto err;
 184             if (!X509_signature_dump(bp, suid, 12))
 185                 goto err;
 186         }
 187     }
 188
 189     if (!(cflag & X509_FLAG_NO_EXTENSIONS))
 190         X509V3_extensions_print(bp, "X509v3 extensions",
 191                                 X509_get0_extensions(x), cflag, 8);
 192
 193     if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
 194         const X509_ALGOR *sig_alg;
 195         const ASN1_BIT_STRING *sig;
 196         X509_get0_signature(&sig, &sig_alg, x);
 197         if (X509_signature_print(bp, sig_alg, sig) <= 0)
 198             goto err;
 199     }
 200     if (!(cflag & X509_FLAG_NO_AUX)) {
 201         if (!X509_aux_print(bp, x, 0))
 202             goto err;
 203     }
 204     ret = 1;
 205  err:
 206     OPENSSL_free(m);
 207     return (ret);
 208 }
 209
 210 int X509_ocspid_print(BIO *bp, X509 *x)
 211 {
 212     unsigned char *der = NULL;
 213     unsigned char *dertmp;
 214     int derlen;
 215     int i;
 216     unsigned char SHA1md[SHA_DIGEST_LENGTH];
 217     ASN1_BIT_STRING *keybstr;
 218     X509_NAME *subj;
 219
 220     /*
 221      * display the hash of the subject as it would appear in OCSP requests
 222      */
 223     if (BIO_printf(bp, "        Subject OCSP hash: ") <= 0)
 224         goto err;
 225     subj = X509_get_subject_name(x);
 226     derlen = i2d_X509_NAME(subj, NULL);
 227     if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
 228         goto err;
 229     i2d_X509_NAME(subj, &dertmp);
 230
 231     if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
 232         goto err;
 233     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 234         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 235             goto err;
 236     }
 237     OPENSSL_free(der);
 238     der = NULL;
 239
 240     /*
 241      * display the hash of the public key as it would appear in OCSP requests
 242      */
 243     if (BIO_printf(bp, "\n        Public key OCSP hash: ") <= 0)
 244         goto err;
 245
 246     keybstr = X509_get0_pubkey_bitstr(x);
 247
 248     if (keybstr == NULL)
 249         goto err;
 250
 251     if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
 252                     ASN1_STRING_length(keybstr), SHA1md, NULL, EVP_sha1(),
 253                     NULL))
 254         goto err;
 255     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 256         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 257             goto err;
 258     }
 259     BIO_printf(bp, "\n");
 260
 261     return (1);
 262  err:
 263     OPENSSL_free(der);
 264     return (0);
 265 }
 266
 267 int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
 268 {
 269     const unsigned char *s;
 270     int i, n;
 271
 272     n = sig->length;
 273     s = sig->data;
 274     for (i = 0; i < n; i++) {
 275         if ((i % 18) == 0) {
 276             if (BIO_write(bp, "\n", 1) <= 0)
 277                 return 0;
 278             if (BIO_indent(bp, indent, indent) <= 0)
 279                 return 0;
 280         }
 281         if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
 282             return 0;
 283     }
 284     if (BIO_write(bp, "\n", 1) != 1)
 285         return 0;
 286
 287     return 1;
 288 }
 289
 290 int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
 291                          const ASN1_STRING *sig)
 292 {
 293     int sig_nid;
 294     if (BIO_puts(bp, "    Signature Algorithm: ") <= 0)
 295         return 0;
 296     if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
 297         return 0;
 298
 299     sig_nid = OBJ_obj2nid(sigalg->algorithm);
 300     if (sig_nid != NID_undef) {
 301         int pkey_nid, dig_nid;
 302         const EVP_PKEY_ASN1_METHOD *ameth;
 303         if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
 304             ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
 305             if (ameth && ameth->sig_print)
 306                 return ameth->sig_print(bp, sigalg, sig, 9, 0);
 307         }
 308     }
 309     if (sig)
 310         return X509_signature_dump(bp, sig, 9);
 311     else if (BIO_puts(bp, "\n") <= 0)
 312         return 0;
 313     return 1;
 314 }
 315
 316 int X509_aux_print(BIO *out, X509 *x, int indent)
 317 {
 318     char oidstr[80], first;
 319     STACK_OF(ASN1_OBJECT) *trust, *reject;
 320     const unsigned char *alias, *keyid;
 321     int keyidlen;
 322     int i;
 323     if (X509_trusted(x) == 0)
 324         return 1;
 325     trust = X509_get0_trust_objects(x);
 326     reject = X509_get0_reject_objects(x);
 327     if (trust) {
 328         first = 1;
 329         BIO_printf(out, "%*sTrusted Uses:\n%*s", indent, "", indent + 2, "");
 330         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 331             if (!first)
 332                 BIO_puts(out, ", ");
 333             else
 334                 first = 0;
 335             OBJ_obj2txt(oidstr, sizeof oidstr,
 336                         sk_ASN1_OBJECT_value(trust, i), 0);
 337             BIO_puts(out, oidstr);
 338         }
 339         BIO_puts(out, "\n");
 340     } else
 341         BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
 342     if (reject) {
 343         first = 1;
 344         BIO_printf(out, "%*sRejected Uses:\n%*s", indent, "", indent + 2, "");
 345         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 346             if (!first)
 347                 BIO_puts(out, ", ");
 348             else
 349                 first = 0;
 350             OBJ_obj2txt(oidstr, sizeof oidstr,
 351                         sk_ASN1_OBJECT_value(reject, i), 0);
 352             BIO_puts(out, oidstr);
 353         }
 354         BIO_puts(out, "\n");
 355     } else
 356         BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
 357     alias = X509_alias_get0(x, NULL);
 358     if (alias)
 359         BIO_printf(out, "%*sAlias: %s\n", indent, "", alias);
 360     keyid = X509_keyid_get0(x, &keyidlen);
 361     if (keyid) {
 362         BIO_printf(out, "%*sKey Id: ", indent, "");
 363         for (i = 0; i < keyidlen; i++)
 364             BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
 365         BIO_write(out, "\n", 1);
 366     }
 367     return 1;
 368 }