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 (l >= 0 && l <= 2) {
  75             if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, (unsigned long)l) <= 0)
  76                 goto err;
  77         } else {
  78             if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
  79                 goto err;
  80         }
  81     }
  82     if (!(cflag & X509_FLAG_NO_SERIAL)) {
  83
  84         if (BIO_write(bp, "        Serial Number:", 22) <= 0)
  85             goto err;
  86
  87         bs = X509_get_serialNumber(x);
  88         if (bs->length <= (int)sizeof(long)) {
  89                 ERR_set_mark();
  90                 l = ASN1_INTEGER_get(bs);
  91                 ERR_pop_to_mark();
  92         } else {
  93             l = -1;
  94         }
  95         if (l != -1) {
  96             unsigned long ul;
  97             if (bs->type == V_ASN1_NEG_INTEGER) {
  98                 ul = 0 - (unsigned long)l;
  99                 neg = "-";
 100             } else {
 101                 ul = l;
 102                 neg = "";
 103             }
 104             if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, ul, neg, ul) <= 0)
 105                 goto err;
 106         } else {
 107             neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
 108             if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
 109                 goto err;
 110
 111             for (i = 0; i < bs->length; i++) {
 112                 if (BIO_printf(bp, "%02x%c", bs->data[i],
 113                                ((i + 1 == bs->length) ? '\n' : ':')) <= 0)
 114                     goto err;
 115             }
 116         }
 117
 118     }
 119
 120     if (!(cflag & X509_FLAG_NO_SIGNAME)) {
 121         const X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);
 122         if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
 123             goto err;
 124     }
 125
 126     if (!(cflag & X509_FLAG_NO_ISSUER)) {
 127         if (BIO_printf(bp, "        Issuer:%c", mlch) <= 0)
 128             goto err;
 129         if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
 130             < 0)
 131             goto err;
 132         if (BIO_write(bp, "\n", 1) <= 0)
 133             goto err;
 134     }
 135     if (!(cflag & X509_FLAG_NO_VALIDITY)) {
 136         if (BIO_write(bp, "        Validity\n", 17) <= 0)
 137             goto err;
 138         if (BIO_write(bp, "            Not Before: ", 24) <= 0)
 139             goto err;
 140         if (!ASN1_TIME_print(bp, X509_get0_notBefore(x)))
 141             goto err;
 142         if (BIO_write(bp, "\n            Not After : ", 25) <= 0)
 143             goto err;
 144         if (!ASN1_TIME_print(bp, X509_get0_notAfter(x)))
 145             goto err;
 146         if (BIO_write(bp, "\n", 1) <= 0)
 147             goto err;
 148     }
 149     if (!(cflag & X509_FLAG_NO_SUBJECT)) {
 150         if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
 151             goto err;
 152         if (X509_NAME_print_ex
 153             (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
 154             goto err;
 155         if (BIO_write(bp, "\n", 1) <= 0)
 156             goto err;
 157     }
 158     if (!(cflag & X509_FLAG_NO_PUBKEY)) {
 159         X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
 160         ASN1_OBJECT *xpoid;
 161         X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
 162         if (BIO_write(bp, "        Subject Public Key Info:\n", 33) <= 0)
 163             goto err;
 164         if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
 165             goto err;
 166         if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
 167             goto err;
 168         if (BIO_puts(bp, "\n") <= 0)
 169             goto err;
 170
 171         pkey = X509_get0_pubkey(x);
 172         if (pkey == NULL) {
 173             BIO_printf(bp, "%12sUnable to load Public Key\n", "");
 174             ERR_print_errors(bp);
 175         } else {
 176             EVP_PKEY_print_public(bp, pkey, 16, NULL);
 177         }
 178     }
 179
 180     if (!(cflag & X509_FLAG_NO_IDS)) {
 181         const ASN1_BIT_STRING *iuid, *suid;
 182         X509_get0_uids(x, &iuid, &suid);
 183         if (iuid != NULL) {
 184             if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
 185                 goto err;
 186             if (!X509_signature_dump(bp, iuid, 12))
 187                 goto err;
 188         }
 189         if (suid != NULL) {
 190             if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
 191                 goto err;
 192             if (!X509_signature_dump(bp, suid, 12))
 193                 goto err;
 194         }
 195     }
 196
 197     if (!(cflag & X509_FLAG_NO_EXTENSIONS))
 198         X509V3_extensions_print(bp, "X509v3 extensions",
 199                                 X509_get0_extensions(x), cflag, 8);
 200
 201     if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
 202         const X509_ALGOR *sig_alg;
 203         const ASN1_BIT_STRING *sig;
 204         X509_get0_signature(&sig, &sig_alg, x);
 205         if (X509_signature_print(bp, sig_alg, sig) <= 0)
 206             goto err;
 207     }
 208     if (!(cflag & X509_FLAG_NO_AUX)) {
 209         if (!X509_aux_print(bp, x, 0))
 210             goto err;
 211     }
 212     ret = 1;
 213  err:
 214     OPENSSL_free(m);
 215     return (ret);
 216 }
 217
 218 int X509_ocspid_print(BIO *bp, X509 *x)
 219 {
 220     unsigned char *der = NULL;
 221     unsigned char *dertmp;
 222     int derlen;
 223     int i;
 224     unsigned char SHA1md[SHA_DIGEST_LENGTH];
 225     ASN1_BIT_STRING *keybstr;
 226     X509_NAME *subj;
 227
 228     /*
 229      * display the hash of the subject as it would appear in OCSP requests
 230      */
 231     if (BIO_printf(bp, "        Subject OCSP hash: ") <= 0)
 232         goto err;
 233     subj = X509_get_subject_name(x);
 234     derlen = i2d_X509_NAME(subj, NULL);
 235     if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
 236         goto err;
 237     i2d_X509_NAME(subj, &dertmp);
 238
 239     if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
 240         goto err;
 241     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 242         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 243             goto err;
 244     }
 245     OPENSSL_free(der);
 246     der = NULL;
 247
 248     /*
 249      * display the hash of the public key as it would appear in OCSP requests
 250      */
 251     if (BIO_printf(bp, "\n        Public key OCSP hash: ") <= 0)
 252         goto err;
 253
 254     keybstr = X509_get0_pubkey_bitstr(x);
 255
 256     if (keybstr == NULL)
 257         goto err;
 258
 259     if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
 260                     ASN1_STRING_length(keybstr), SHA1md, NULL, EVP_sha1(),
 261                     NULL))
 262         goto err;
 263     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 264         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 265             goto err;
 266     }
 267     BIO_printf(bp, "\n");
 268
 269     return (1);
 270  err:
 271     OPENSSL_free(der);
 272     return (0);
 273 }
 274
 275 int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
 276 {
 277     const unsigned char *s;
 278     int i, n;
 279
 280     n = sig->length;
 281     s = sig->data;
 282     for (i = 0; i < n; i++) {
 283         if ((i % 18) == 0) {
 284             if (BIO_write(bp, "\n", 1) <= 0)
 285                 return 0;
 286             if (BIO_indent(bp, indent, indent) <= 0)
 287                 return 0;
 288         }
 289         if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
 290             return 0;
 291     }
 292     if (BIO_write(bp, "\n", 1) != 1)
 293         return 0;
 294
 295     return 1;
 296 }
 297
 298 int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
 299                          const ASN1_STRING *sig)
 300 {
 301     int sig_nid;
 302     if (BIO_puts(bp, "    Signature Algorithm: ") <= 0)
 303         return 0;
 304     if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
 305         return 0;
 306
 307     sig_nid = OBJ_obj2nid(sigalg->algorithm);
 308     if (sig_nid != NID_undef) {
 309         int pkey_nid, dig_nid;
 310         const EVP_PKEY_ASN1_METHOD *ameth;
 311         if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
 312             ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
 313             if (ameth && ameth->sig_print)
 314                 return ameth->sig_print(bp, sigalg, sig, 9, 0);
 315         }
 316     }
 317     if (sig)
 318         return X509_signature_dump(bp, sig, 9);
 319     else if (BIO_puts(bp, "\n") <= 0)
 320         return 0;
 321     return 1;
 322 }
 323
 324 int X509_aux_print(BIO *out, X509 *x, int indent)
 325 {
 326     char oidstr[80], first;
 327     STACK_OF(ASN1_OBJECT) *trust, *reject;
 328     const unsigned char *alias, *keyid;
 329     int keyidlen;
 330     int i;
 331     if (X509_trusted(x) == 0)
 332         return 1;
 333     trust = X509_get0_trust_objects(x);
 334     reject = X509_get0_reject_objects(x);
 335     if (trust) {
 336         first = 1;
 337         BIO_printf(out, "%*sTrusted Uses:\n%*s", indent, "", indent + 2, "");
 338         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 339             if (!first)
 340                 BIO_puts(out, ", ");
 341             else
 342                 first = 0;
 343             OBJ_obj2txt(oidstr, sizeof oidstr,
 344                         sk_ASN1_OBJECT_value(trust, i), 0);
 345             BIO_puts(out, oidstr);
 346         }
 347         BIO_puts(out, "\n");
 348     } else
 349         BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
 350     if (reject) {
 351         first = 1;
 352         BIO_printf(out, "%*sRejected Uses:\n%*s", indent, "", indent + 2, "");
 353         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 354             if (!first)
 355                 BIO_puts(out, ", ");
 356             else
 357                 first = 0;
 358             OBJ_obj2txt(oidstr, sizeof oidstr,
 359                         sk_ASN1_OBJECT_value(reject, i), 0);
 360             BIO_puts(out, oidstr);
 361         }
 362         BIO_puts(out, "\n");
 363     } else
 364         BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
 365     alias = X509_alias_get0(x, NULL);
 366     if (alias)
 367         BIO_printf(out, "%*sAlias: %s\n", indent, "", alias);
 368     keyid = X509_keyid_get0(x, &keyidlen);
 369     if (keyid) {
 370         BIO_printf(out, "%*sKey Id: ", indent, "");
 371         for (i = 0; i < keyidlen; i++)
 372             BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
 373         BIO_write(out, "\n", 1);
 374     }
 375     return 1;
 376 }