crypto/x509/by_file.c

   1 /*
   2  * Copyright 1995-2018 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 <time.h>
  12 #include <errno.h>
  13
  14 #include "internal/cryptlib.h"
  15 #include <openssl/buffer.h>
  16 #include <openssl/x509.h>
  17 #include <openssl/pem.h>
  18 #include "x509_lcl.h"
  19
  20 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
  21                         long argl, char **ret);
  22 static X509_LOOKUP_METHOD x509_file_lookup = {
  23     "Load file into cache",
  24     NULL,                       /* new_item */
  25     NULL,                       /* free */
  26     NULL,                       /* init */
  27     NULL,                       /* shutdown */
  28     by_file_ctrl,               /* ctrl */
  29     NULL,                       /* get_by_subject */
  30     NULL,                       /* get_by_issuer_serial */
  31     NULL,                       /* get_by_fingerprint */
  32     NULL,                       /* get_by_alias */
  33 };
  34
  35 X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
  36 {
  37     return &x509_file_lookup;
  38 }
  39
  40 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp,
  41                         long argl, char **ret)
  42 {
  43     int ok = 0;
  44     const char *file;
  45
  46     switch (cmd) {
  47     case X509_L_FILE_LOAD:
  48         if (argl == X509_FILETYPE_DEFAULT) {
  49             file = ossl_safe_getenv(X509_get_default_cert_file_env());
  50             if (file)
  51                 ok = (X509_load_cert_crl_file(ctx, file,
  52                                               X509_FILETYPE_PEM) != 0);
  53
  54             else
  55                 ok = (X509_load_cert_crl_file
  56                       (ctx, X509_get_default_cert_file(),
  57                        X509_FILETYPE_PEM) != 0);
  58
  59             if (!ok) {
  60                 X509err(X509_F_BY_FILE_CTRL, X509_R_LOADING_DEFAULTS);
  61             }
  62         } else {
  63             if (argl == X509_FILETYPE_PEM)
  64                 ok = (X509_load_cert_crl_file(ctx, argp,
  65                                               X509_FILETYPE_PEM) != 0);
  66             else
  67                 ok = (X509_load_cert_file(ctx, argp, (int)argl) != 0);
  68         }
  69         break;
  70     }
  71     return ok;
  72 }
  73
  74 int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
  75 {
  76     int ret = 0;
  77     BIO *in = NULL;
  78     int i, count = 0;
  79     X509 *x = NULL;
  80
  81     in = BIO_new(BIO_s_file());
  82
  83     if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
  84         X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_SYS_LIB);
  85         goto err;
  86     }
  87
  88     if (type == X509_FILETYPE_PEM) {
  89         for (;;) {
  90             x = PEM_read_bio_X509_AUX(in, NULL, NULL, "");
  91             if (x == NULL) {
  92                 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
  93                      PEM_R_NO_START_LINE) && (count > 0)) {
  94                     ERR_clear_error();
  95                     break;
  96                 } else {
  97                     X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_PEM_LIB);
  98                     goto err;
  99                 }
 100             }
 101             i = X509_STORE_add_cert(ctx->store_ctx, x);
 102             if (!i)
 103                 goto err;
 104             count++;
 105             X509_free(x);
 106             x = NULL;
 107         }
 108         ret = count;
 109     } else if (type == X509_FILETYPE_ASN1) {
 110         x = d2i_X509_bio(in, NULL);
 111         if (x == NULL) {
 112             X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_ASN1_LIB);
 113             goto err;
 114         }
 115         i = X509_STORE_add_cert(ctx->store_ctx, x);
 116         if (!i)
 117             goto err;
 118         ret = i;
 119     } else {
 120         X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_BAD_X509_FILETYPE);
 121         goto err;
 122     }
 123     if (ret == 0)
 124         X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_NO_CERTIFICATE_FOUND);
 125  err:
 126     X509_free(x);
 127     BIO_free(in);
 128     return ret;
 129 }
 130
 131 int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 132 {
 133     int ret = 0;
 134     BIO *in = NULL;
 135     int i, count = 0;
 136     X509_CRL *x = NULL;
 137
 138     in = BIO_new(BIO_s_file());
 139
 140     if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
 141         X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_SYS_LIB);
 142         goto err;
 143     }
 144
 145     if (type == X509_FILETYPE_PEM) {
 146         for (;;) {
 147             x = PEM_read_bio_X509_CRL(in, NULL, NULL, "");
 148             if (x == NULL) {
 149                 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
 150                      PEM_R_NO_START_LINE) && (count > 0)) {
 151                     ERR_clear_error();
 152                     break;
 153                 } else {
 154                     X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_PEM_LIB);
 155                     goto err;
 156                 }
 157             }
 158             i = X509_STORE_add_crl(ctx->store_ctx, x);
 159             if (!i)
 160                 goto err;
 161             count++;
 162             X509_CRL_free(x);
 163             x = NULL;
 164         }
 165         ret = count;
 166     } else if (type == X509_FILETYPE_ASN1) {
 167         x = d2i_X509_CRL_bio(in, NULL);
 168         if (x == NULL) {
 169             X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_ASN1_LIB);
 170             goto err;
 171         }
 172         i = X509_STORE_add_crl(ctx->store_ctx, x);
 173         if (!i)
 174             goto err;
 175         ret = i;
 176     } else {
 177         X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_BAD_X509_FILETYPE);
 178         goto err;
 179     }
 180     if (ret == 0)
 181         X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_NO_CRL_FOUND);
 182  err:
 183     X509_CRL_free(x);
 184     BIO_free(in);
 185     return ret;
 186 }
 187
 188 int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 189 {
 190     STACK_OF(X509_INFO) *inf;
 191     X509_INFO *itmp;
 192     BIO *in;
 193     int i, count = 0;
 194
 195     if (type != X509_FILETYPE_PEM)
 196         return X509_load_cert_file(ctx, file, type);
 197     in = BIO_new_file(file, "r");
 198     if (!in) {
 199         X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_SYS_LIB);
 200         return 0;
 201     }
 202     inf = PEM_X509_INFO_read_bio(in, NULL, NULL, "");
 203     BIO_free(in);
 204     if (!inf) {
 205         X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_PEM_LIB);
 206         return 0;
 207     }
 208     for (i = 0; i < sk_X509_INFO_num(inf); i++) {
 209         itmp = sk_X509_INFO_value(inf, i);
 210         if (itmp->x509) {
 211             if (!X509_STORE_add_cert(ctx->store_ctx, itmp->x509))
 212                 goto err;
 213             count++;
 214         }
 215         if (itmp->crl) {
 216             if (!X509_STORE_add_crl(ctx->store_ctx, itmp->crl))
 217                 goto err;
 218             count++;
 219         }
 220     }
 221     if (count == 0)
 222         X509err(X509_F_X509_LOAD_CERT_CRL_FILE,
 223                 X509_R_NO_CERTIFICATE_OR_CRL_FOUND);
 224  err:
 225     sk_X509_INFO_pop_free(inf, X509_INFO_free);
 226     return count;
 227 }