crypto/x509/t_x509.c

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (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
 123         if (BIO_puts(bp, "    ") <= 0)
 124             goto err;
 125         if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
 126             goto err;
 127     }
 128
 129     if (!(cflag & X509_FLAG_NO_ISSUER)) {
 130         if (BIO_printf(bp, "        Issuer:%c", mlch) <= 0)
 131             goto err;
 132         if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
 133             < 0)
 134             goto err;
 135         if (BIO_write(bp, "\n", 1) <= 0)
 136             goto err;
 137     }
 138     if (!(cflag & X509_FLAG_NO_VALIDITY)) {
 139         if (BIO_write(bp, "        Validity\n", 17) <= 0)
 140             goto err;
 141         if (BIO_write(bp, "            Not Before: ", 24) <= 0)
 142             goto err;
 143         if (!ASN1_TIME_print(bp, X509_get0_notBefore(x)))
 144             goto err;
 145         if (BIO_write(bp, "\n            Not After : ", 25) <= 0)
 146             goto err;
 147         if (!ASN1_TIME_print(bp, X509_get0_notAfter(x)))
 148             goto err;
 149         if (BIO_write(bp, "\n", 1) <= 0)
 150             goto err;
 151     }
 152     if (!(cflag & X509_FLAG_NO_SUBJECT)) {
 153         if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
 154             goto err;
 155         if (X509_NAME_print_ex
 156             (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
 157             goto err;
 158         if (BIO_write(bp, "\n", 1) <= 0)
 159             goto err;
 160     }
 161     if (!(cflag & X509_FLAG_NO_PUBKEY)) {
 162         X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
 163         ASN1_OBJECT *xpoid;
 164         X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
 165         if (BIO_write(bp, "        Subject Public Key Info:\n", 33) <= 0)
 166             goto err;
 167         if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
 168             goto err;
 169         if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
 170             goto err;
 171         if (BIO_puts(bp, "\n") <= 0)
 172             goto err;
 173
 174         pkey = X509_get0_pubkey(x);
 175         if (pkey == NULL) {
 176             BIO_printf(bp, "%12sUnable to load Public Key\n", "");
 177             ERR_print_errors(bp);
 178         } else {
 179             EVP_PKEY_print_public(bp, pkey, 16, NULL);
 180         }
 181     }
 182
 183     if (!(cflag & X509_FLAG_NO_IDS)) {
 184         const ASN1_BIT_STRING *iuid, *suid;
 185         X509_get0_uids(x, &iuid, &suid);
 186         if (iuid != NULL) {
 187             if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
 188                 goto err;
 189             if (!X509_signature_dump(bp, iuid, 12))
 190                 goto err;
 191         }
 192         if (suid != NULL) {
 193             if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
 194                 goto err;
 195             if (!X509_signature_dump(bp, suid, 12))
 196                 goto err;
 197         }
 198     }
 199
 200     if (!(cflag & X509_FLAG_NO_EXTENSIONS))
 201         X509V3_extensions_print(bp, "X509v3 extensions",
 202                                 X509_get0_extensions(x), cflag, 8);
 203
 204     if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
 205         const X509_ALGOR *sig_alg;
 206         const ASN1_BIT_STRING *sig;
 207         X509_get0_signature(&sig, &sig_alg, x);
 208         if (X509_signature_print(bp, sig_alg, sig) <= 0)
 209             goto err;
 210     }
 211     if (!(cflag & X509_FLAG_NO_AUX)) {
 212         if (!X509_aux_print(bp, x, 0))
 213             goto err;
 214     }
 215     ret = 1;
 216  err:
 217     OPENSSL_free(m);
 218     return ret;
 219 }
 220
 221 int X509_ocspid_print(BIO *bp, X509 *x)
 222 {
 223     unsigned char *der = NULL;
 224     unsigned char *dertmp;
 225     int derlen;
 226     int i;
 227     unsigned char SHA1md[SHA_DIGEST_LENGTH];
 228     ASN1_BIT_STRING *keybstr;
 229     X509_NAME *subj;
 230
 231     /*
 232      * display the hash of the subject as it would appear in OCSP requests
 233      */
 234     if (BIO_printf(bp, "        Subject OCSP hash: ") <= 0)
 235         goto err;
 236     subj = X509_get_subject_name(x);
 237     derlen = i2d_X509_NAME(subj, NULL);
 238     if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
 239         goto err;
 240     i2d_X509_NAME(subj, &dertmp);
 241
 242     if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
 243         goto err;
 244     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 245         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 246             goto err;
 247     }
 248     OPENSSL_free(der);
 249     der = NULL;
 250
 251     /*
 252      * display the hash of the public key as it would appear in OCSP requests
 253      */
 254     if (BIO_printf(bp, "\n        Public key OCSP hash: ") <= 0)
 255         goto err;
 256
 257     keybstr = X509_get0_pubkey_bitstr(x);
 258
 259     if (keybstr == NULL)
 260         goto err;
 261
 262     if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
 263                     ASN1_STRING_length(keybstr), SHA1md, NULL, EVP_sha1(),
 264                     NULL))
 265         goto err;
 266     for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
 267         if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
 268             goto err;
 269     }
 270     BIO_printf(bp, "\n");
 271
 272     return 1;
 273  err:
 274     OPENSSL_free(der);
 275     return 0;
 276 }
 277
 278 int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
 279 {
 280     const unsigned char *s;
 281     int i, n;
 282
 283     n = sig->length;
 284     s = sig->data;
 285     for (i = 0; i < n; i++) {
 286         if ((i % 18) == 0) {
 287             if (i > 0 && BIO_write(bp, "\n", 1) <= 0)
 288                 return 0;
 289             if (BIO_indent(bp, indent, indent) <= 0)
 290                 return 0;
 291         }
 292         if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
 293             return 0;
 294     }
 295     if (BIO_write(bp, "\n", 1) != 1)
 296         return 0;
 297
 298     return 1;
 299 }
 300
 301 int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
 302                          const ASN1_STRING *sig)
 303 {
 304     int sig_nid;
 305     int indent = 4;
 306     if (BIO_printf(bp, "%*sSignature Algorithm: ", indent, "") <= 0)
 307         return 0;
 308     if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
 309         return 0;
 310
 311     if (sig && BIO_printf(bp, "\n%*sSignature Value:", indent, "") <= 0)
 312         return 0;
 313     sig_nid = OBJ_obj2nid(sigalg->algorithm);
 314     if (sig_nid != NID_undef) {
 315         int pkey_nid, dig_nid;
 316         const EVP_PKEY_ASN1_METHOD *ameth;
 317         if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
 318             ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
 319             if (ameth && ameth->sig_print)
 320                 return ameth->sig_print(bp, sigalg, sig, indent + 4, 0);
 321         }
 322     }
 323     if (BIO_write(bp, "\n", 1) != 1)
 324         return 0;
 325     if (sig)
 326         return X509_signature_dump(bp, sig, indent + 4);
 327     return 1;
 328 }
 329
 330 int X509_aux_print(BIO *out, X509 *x, int indent)
 331 {
 332     char oidstr[80], first;
 333     STACK_OF(ASN1_OBJECT) *trust, *reject;
 334     const unsigned char *alias, *keyid;
 335     int keyidlen;
 336     int i;
 337     if (X509_trusted(x) == 0)
 338         return 1;
 339     trust = X509_get0_trust_objects(x);
 340     reject = X509_get0_reject_objects(x);
 341     if (trust) {
 342         first = 1;
 343         BIO_printf(out, "%*sTrusted Uses:\n%*s", indent, "", indent + 2, "");
 344         for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
 345             if (!first)
 346                 BIO_puts(out, ", ");
 347             else
 348                 first = 0;
 349             OBJ_obj2txt(oidstr, sizeof(oidstr),
 350                         sk_ASN1_OBJECT_value(trust, i), 0);
 351             BIO_puts(out, oidstr);
 352         }
 353         BIO_puts(out, "\n");
 354     } else
 355         BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
 356     if (reject) {
 357         first = 1;
 358         BIO_printf(out, "%*sRejected Uses:\n%*s", indent, "", indent + 2, "");
 359         for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
 360             if (!first)
 361                 BIO_puts(out, ", ");
 362             else
 363                 first = 0;
 364             OBJ_obj2txt(oidstr, sizeof(oidstr),
 365                         sk_ASN1_OBJECT_value(reject, i), 0);
 366             BIO_puts(out, oidstr);
 367         }
 368         BIO_puts(out, "\n");
 369     } else
 370         BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
 371     alias = X509_alias_get0(x, NULL);
 372     if (alias)
 373         BIO_printf(out, "%*sAlias: %s\n", indent, "", alias);
 374     keyid = X509_keyid_get0(x, &keyidlen);
 375     if (keyid) {
 376         BIO_printf(out, "%*sKey Id: ", indent, "");
 377         for (i = 0; i < keyidlen; i++)
 378             BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
 379         BIO_write(out, "\n", 1);
 380     }
 381     return 1;
 382 }