mono/btls/btls-pkcs12.c

   1 //
   2 //  btls-pkcs12.c
   3 //  MonoBtls
   4 //
   5 //  Created by Martin Baulig on 3/8/16.
   6 //  Copyright © 2016 Xamarin. All rights reserved.
   7 //
   8
   9 #include <btls-pkcs12.h>
  10 #include <openssl/pkcs12.h>
  11
  12 struct MonoBtlsPkcs12 {
  13         STACK_OF(X509) *certs;
  14         EVP_PKEY *private_key;
  15         CRYPTO_refcount_t references;
  16 };
  17
  18 MONO_API MonoBtlsPkcs12 *
  19 mono_btls_pkcs12_new (void)
  20 {
  21         MonoBtlsPkcs12 *pkcs12 = (MonoBtlsPkcs12 *)OPENSSL_malloc (sizeof (MonoBtlsPkcs12));
  22         if (pkcs12 == NULL)
  23                 return NULL;
  24
  25         memset (pkcs12, 0, sizeof(MonoBtlsPkcs12));
  26         pkcs12->certs = sk_X509_new_null ();
  27         pkcs12->references = 1;
  28         return pkcs12;
  29 }
  30
  31 MONO_API int
  32 mono_btls_pkcs12_get_count (MonoBtlsPkcs12 *pkcs12)
  33 {
  34         return (int)sk_X509_num (pkcs12->certs);
  35 }
  36
  37 MONO_API X509 *
  38 mono_btls_pkcs12_get_cert (MonoBtlsPkcs12 *pkcs12, int index)
  39 {
  40         X509 *cert;
  41
  42         if ((size_t)index >= sk_X509_num (pkcs12->certs))
  43                 return NULL;
  44         cert = sk_X509_value (pkcs12->certs, index);
  45         if (cert)
  46                 X509_up_ref (cert);
  47         return cert;
  48 }
  49
  50 MONO_API STACK_OF(X509) *
  51 mono_btls_pkcs12_get_certs (MonoBtlsPkcs12 *pkcs12)
  52 {
  53         return pkcs12->certs;
  54 }
  55
  56 MONO_API int
  57 mono_btls_pkcs12_free (MonoBtlsPkcs12 *pkcs12)
  58 {
  59         if (!CRYPTO_refcount_dec_and_test_zero (&pkcs12->references))
  60                 return 0;
  61
  62         sk_X509_pop_free (pkcs12->certs, X509_free);
  63         OPENSSL_free (pkcs12);
  64         return 1;
  65 }
  66
  67 MONO_API MonoBtlsPkcs12 *
  68 mono_btls_pkcs12_up_ref (MonoBtlsPkcs12 *pkcs12)
  69 {
  70         CRYPTO_refcount_inc (&pkcs12->references);
  71         return pkcs12;
  72 }
  73
  74 MONO_API void
  75 mono_btls_pkcs12_add_cert (MonoBtlsPkcs12 *pkcs12, X509 *x509)
  76 {
  77         X509_up_ref (x509);
  78         sk_X509_push (pkcs12->certs, x509);
  79 }
  80
  81 MONO_API int
  82 mono_btls_pkcs12_import (MonoBtlsPkcs12 *pkcs12, const void *data, int len, const void *password)
  83 {
  84         CBS cbs;
  85         CBS_init (&cbs, data, len);
  86         return PKCS12_get_key_and_certs (&pkcs12->private_key, pkcs12->certs, &cbs, password);
  87 }
  88
  89 MONO_API int
  90 mono_btls_pkcs12_has_private_key (MonoBtlsPkcs12 *pkcs12)
  91 {
  92         return pkcs12->private_key != NULL;
  93 }
  94
  95 MONO_API EVP_PKEY *
  96 mono_btls_pkcs12_get_private_key (MonoBtlsPkcs12 *pkcs12)
  97 {
  98         if (!pkcs12->private_key)
  99                 return NULL;
 100         return EVP_PKEY_up_ref (pkcs12->private_key);
 101 }