lib/libcrypto/x509/by_mem.c

   1 /* $OpenBSD: by_mem.c,v 1.4 2017/01/29 17:49:23 beck Exp $ */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <sys/uio.h>
  60 #include <errno.h>
  61 #include <stdio.h>
  62 #include <time.h>
  63 #include <unistd.h>
  64
  65 #include <openssl/buffer.h>
  66 #include <openssl/err.h>
  67 #include <openssl/pem.h>
  68 #include <openssl/lhash.h>
  69 #include <openssl/x509.h>
  70
  71 static int by_mem_ctrl(X509_LOOKUP *, int, const char *, long, char **);
  72
  73 static X509_LOOKUP_METHOD x509_mem_lookup = {
  74         .name = "Load cert from memory",
  75         .new_item = NULL,
  76         .free = NULL,
  77         .init = NULL,
  78         .shutdown = NULL,
  79         .ctrl = by_mem_ctrl,
  80         .get_by_subject = NULL,
  81         .get_by_issuer_serial = NULL,
  82         .get_by_fingerprint = NULL,
  83         .get_by_alias = NULL,
  84 };
  85
  86 X509_LOOKUP_METHOD *
  87 X509_LOOKUP_mem(void)
  88 {
  89         return (&x509_mem_lookup);
  90 }
  91
  92 static int
  93 by_mem_ctrl(X509_LOOKUP *lu, int cmd, const char *buf,
  94     long type, char **ret)
  95 {
  96         STACK_OF(X509_INFO)     *inf = NULL;
  97         const struct iovec      *iov;
  98         X509_INFO               *itmp;
  99         BIO                     *in = NULL;
 100         int                      i, count = 0, ok = 0;
 101
 102         iov = (const struct iovec *)buf;
 103
 104         if (!(cmd == X509_L_MEM && type == X509_FILETYPE_PEM))
 105                 goto done;
 106
 107         if ((in = BIO_new_mem_buf(iov->iov_base, iov->iov_len)) == NULL)
 108                 goto done;
 109
 110         if ((inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL)) == NULL)
 111                 goto done;
 112
 113         for (i = 0; i < sk_X509_INFO_num(inf); i++) {
 114                 itmp = sk_X509_INFO_value(inf, i);
 115                 if (itmp->x509) {
 116                         ok = X509_STORE_add_cert(lu->store_ctx, itmp->x509);
 117                         if (!ok)
 118                                 goto done;
 119                         count++;
 120                 }
 121                 if (itmp->crl) {
 122                         ok = X509_STORE_add_crl(lu->store_ctx, itmp->crl);
 123                         if (!ok)
 124                                 goto done;
 125                         count++;
 126                 }
 127         }
 128
 129         ok = count != 0;
 130  done:
 131         if (count == 0)
 132                 X509error(ERR_R_PEM_LIB);
 133         if (inf != NULL)
 134                 sk_X509_INFO_pop_free(inf, X509_INFO_free);
 135         if (in != NULL)
 136                 BIO_free(in);
 137         return (ok);
 138 }