--- /dev/null
+/* crypto/pem/pem_info.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <openssl/pem.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/buf.h>
+#include <openssl/dsa.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+#include <openssl/rsa.h>
+#include <openssl/x509.h>
+
+#ifndef OPENSSL_NO_FP_API
+STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
+ pem_password_cb *cb, void *u)
+{
+ BIO *b;
+ STACK_OF(X509_INFO) *ret;
+
+ if ((b = BIO_new(BIO_s_file())) == NULL) {
+ OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB);
+ return (0);
+ }
+ BIO_set_fp(b, fp, BIO_NOCLOSE);
+ ret = PEM_X509_INFO_read_bio(b, sk, cb, u);
+ BIO_free(b);
+ return (ret);
+}
+#endif
+
+STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
+ pem_password_cb *cb, void *u)
+{
+ X509_INFO *xi = NULL;
+ char *name = NULL, *header = NULL;
+ void *pp;
+ unsigned char *data = NULL;
+ const unsigned char *p;
+ long len, error = 0;
+ int ok = 0;
+ STACK_OF(X509_INFO) *ret = NULL;
+ unsigned int i, raw, ptype;
+ d2i_of_void *d2i = 0;
+
+ if (sk == NULL) {
+ if ((ret = sk_X509_INFO_new_null()) == NULL) {
+ OPENSSL_PUT_ERROR(PEM, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ } else
+ ret = sk;
+
+ if ((xi = X509_INFO_new()) == NULL)
+ goto err;
+ for (;;) {
+ raw = 0;
+ ptype = 0;
+ i = PEM_read_bio(bp, &name, &header, &data, &len);
+ if (i == 0) {
+ error = ERR_GET_REASON(ERR_peek_last_error());
+ if (error == PEM_R_NO_START_LINE) {
+ ERR_clear_error();
+ break;
+ }
+ goto err;
+ }
+ start:
+ if ((strcmp(name, PEM_STRING_X509) == 0) ||
+ (strcmp(name, PEM_STRING_X509_OLD) == 0)) {
+ d2i = (D2I_OF(void)) d2i_X509;
+ if (xi->x509 != NULL) {
+ if (!sk_X509_INFO_push(ret, xi))
+ goto err;
+ if ((xi = X509_INFO_new()) == NULL)
+ goto err;
+ goto start;
+ }
+ pp = &(xi->x509);
+ } else if ((strcmp(name, PEM_STRING_X509_TRUSTED) == 0)) {
+ d2i = (D2I_OF(void)) d2i_X509_AUX;
+ if (xi->x509 != NULL) {
+ if (!sk_X509_INFO_push(ret, xi))
+ goto err;
+ if ((xi = X509_INFO_new()) == NULL)
+ goto err;
+ goto start;
+ }
+ pp = &(xi->x509);
+ } else if (strcmp(name, PEM_STRING_X509_CRL) == 0) {
+ d2i = (D2I_OF(void)) d2i_X509_CRL;
+ if (xi->crl != NULL) {
+ if (!sk_X509_INFO_push(ret, xi))
+ goto err;
+ if ((xi = X509_INFO_new()) == NULL)
+ goto err;
+ goto start;
+ }
+ pp = &(xi->crl);
+ } else if (strcmp(name, PEM_STRING_RSA) == 0) {
+ d2i = (D2I_OF(void)) d2i_RSAPrivateKey;
+ if (xi->x_pkey != NULL) {
+ if (!sk_X509_INFO_push(ret, xi))
+ goto err;
+ if ((xi = X509_INFO_new()) == NULL)
+ goto err;
+ goto start;
+ }
+
+ xi->enc_data = NULL;
+ xi->enc_len = 0;
+
+ xi->x_pkey = X509_PKEY_new();
+ ptype = EVP_PKEY_RSA;
+ pp = &xi->x_pkey->dec_pkey;
+ if ((int)strlen(header) > 10) /* assume encrypted */
+ raw = 1;
+ } else
+#ifndef OPENSSL_NO_DSA
+ if (strcmp(name, PEM_STRING_DSA) == 0) {
+ d2i = (D2I_OF(void)) d2i_DSAPrivateKey;
+ if (xi->x_pkey != NULL) {
+ if (!sk_X509_INFO_push(ret, xi))
+ goto err;
+ if ((xi = X509_INFO_new()) == NULL)
+ goto err;
+ goto start;
+ }
+
+ xi->enc_data = NULL;
+ xi->enc_len = 0;
+
+ xi->x_pkey = X509_PKEY_new();
+ ptype = EVP_PKEY_DSA;
+ pp = &xi->x_pkey->dec_pkey;
+ if ((int)strlen(header) > 10) /* assume encrypted */
+ raw = 1;
+ } else
+#endif
+ if (strcmp(name, PEM_STRING_ECPRIVATEKEY) == 0) {
+ d2i = (D2I_OF(void)) d2i_ECPrivateKey;
+ if (xi->x_pkey != NULL) {
+ if (!sk_X509_INFO_push(ret, xi))
+ goto err;
+ if ((xi = X509_INFO_new()) == NULL)
+ goto err;
+ goto start;
+ }
+
+ xi->enc_data = NULL;
+ xi->enc_len = 0;
+
+ xi->x_pkey = X509_PKEY_new();
+ ptype = EVP_PKEY_EC;
+ pp = &xi->x_pkey->dec_pkey;
+ if ((int)strlen(header) > 10) /* assume encrypted */
+ raw = 1;
+ } else {
+ d2i = NULL;
+ pp = NULL;
+ }
+
+ if (d2i != NULL) {
+ if (!raw) {
+ EVP_CIPHER_INFO cipher;
+
+ if (!PEM_get_EVP_CIPHER_INFO(header, &cipher))
+ goto err;
+ if (!PEM_do_header(&cipher, data, &len, cb, u))
+ goto err;
+ p = data;
+ if (ptype) {
+ if (!d2i_PrivateKey(ptype, pp, &p, len)) {
+ OPENSSL_PUT_ERROR(PEM, ERR_R_ASN1_LIB);
+ goto err;
+ }
+ } else if (d2i(pp, &p, len) == NULL) {
+ OPENSSL_PUT_ERROR(PEM, ERR_R_ASN1_LIB);
+ goto err;
+ }
+ } else { /* encrypted RSA data */
+ if (!PEM_get_EVP_CIPHER_INFO(header, &xi->enc_cipher))
+ goto err;
+ xi->enc_data = (char *)data;
+ xi->enc_len = (int)len;
+ data = NULL;
+ }
+ } else {
+ /* unknown */
+ }
+ if (name != NULL)
+ OPENSSL_free(name);
+ if (header != NULL)
+ OPENSSL_free(header);
+ if (data != NULL)
+ OPENSSL_free(data);
+ name = NULL;
+ header = NULL;
+ data = NULL;
+ }
+
+ /*
+ * if the last one hasn't been pushed yet and there is anything in it
+ * then add it to the stack ...
+ */
+ if ((xi->x509 != NULL) || (xi->crl != NULL) ||
+ (xi->x_pkey != NULL) || (xi->enc_data != NULL)) {
+ if (!sk_X509_INFO_push(ret, xi))
+ goto err;
+ xi = NULL;
+ }
+ ok = 1;
+ err:
+ if (xi != NULL)
+ X509_INFO_free(xi);
+ if (!ok) {
+ for (i = 0; i < sk_X509_INFO_num(ret); i++) {
+ xi = sk_X509_INFO_value(ret, i);
+ X509_INFO_free(xi);
+ }
+ if (ret != sk)
+ sk_X509_INFO_free(ret);
+ ret = NULL;
+ }
+
+ if (name != NULL)
+ OPENSSL_free(name);
+ if (header != NULL)
+ OPENSSL_free(header);
+ if (data != NULL)
+ OPENSSL_free(data);
+ return (ret);
+}
+
+/* A TJH addition */
+int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
+ unsigned char *kstr, int klen,
+ pem_password_cb *cb, void *u)
+{
+ int i, ret = 0;
+ unsigned char *data = NULL;
+ const char *objstr = NULL;
+ char buf[PEM_BUFSIZE];
+ unsigned char *iv = NULL;
+ unsigned iv_len = 0;
+
+ if (enc != NULL) {
+ iv_len = EVP_CIPHER_iv_length(enc);
+ objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc));
+ if (objstr == NULL) {
+ OPENSSL_PUT_ERROR(PEM, PEM_R_UNSUPPORTED_CIPHER);
+ goto err;
+ }
+ }
+
+ /*
+ * now for the fun part ... if we have a private key then we have to be
+ * able to handle a not-yet-decrypted key being written out correctly ...
+ * if it is decrypted or it is non-encrypted then we use the base code
+ */
+ if (xi->x_pkey != NULL) {
+ if ((xi->enc_data != NULL) && (xi->enc_len > 0)) {
+ if (enc == NULL) {
+ OPENSSL_PUT_ERROR(PEM, PEM_R_CIPHER_IS_NULL);
+ goto err;
+ }
+
+ /* copy from weirdo names into more normal things */
+ iv = xi->enc_cipher.iv;
+ data = (unsigned char *)xi->enc_data;
+ i = xi->enc_len;
+
+ /*
+ * we take the encryption data from the internal stuff rather
+ * than what the user has passed us ... as we have to match
+ * exactly for some strange reason
+ */
+ objstr = OBJ_nid2sn(EVP_CIPHER_nid(xi->enc_cipher.cipher));
+ if (objstr == NULL) {
+ OPENSSL_PUT_ERROR(PEM, PEM_R_UNSUPPORTED_CIPHER);
+ goto err;
+ }
+
+ /* create the right magic header stuff */
+ assert(strlen(objstr) + 23 + 2 * iv_len + 13 <= sizeof buf);
+ buf[0] = '\0';
+ PEM_proc_type(buf, PEM_TYPE_ENCRYPTED);
+ PEM_dek_info(buf, objstr, iv_len, (char *)iv);
+
+ /* use the normal code to write things out */
+ i = PEM_write_bio(bp, PEM_STRING_RSA, buf, data, i);
+ if (i <= 0)
+ goto err;
+ } else {
+ /* Add DSA/DH */
+ /* normal optionally encrypted stuff */
+ if (PEM_write_bio_RSAPrivateKey(bp,
+ xi->x_pkey->dec_pkey->pkey.rsa,
+ enc, kstr, klen, cb, u) <= 0)
+ goto err;
+ }
+ }
+
+ /* if we have a certificate then write it out now */
+ if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp, xi->x509) <= 0))
+ goto err;
+
+ /*
+ * we are ignoring anything else that is loaded into the X509_INFO
+ * structure for the moment ... as I don't need it so I'm not coding it
+ * here and Eric can do it when this makes it into the base library --tjh
+ */
+
+ ret = 1;
+
+err:
+ OPENSSL_cleanse(buf, PEM_BUFSIZE);
+ return ret;
+}
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