diff options
Diffstat (limited to 'openssl/crypto/pem/pem_info.c')
| -rw-r--r-- | openssl/crypto/pem/pem_info.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/openssl/crypto/pem/pem_info.c b/openssl/crypto/pem/pem_info.c new file mode 100644 index 0000000..4d736a1 --- /dev/null +++ b/openssl/crypto/pem/pem_info.c @@ -0,0 +1,394 @@ +/* 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 <stdio.h> +#include "cryptlib.h" +#include <openssl/buffer.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/x509.h> +#include <openssl/pem.h> +#ifndef OPENSSL_NO_RSA +# include <openssl/rsa.h> +#endif +#ifndef OPENSSL_NO_DSA +# include <openssl/dsa.h> +#endif + +#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) { + PEMerr(PEM_F_PEM_X509_INFO_READ, 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) { + PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, 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 +#ifndef OPENSSL_NO_RSA + 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(); + if (xi->x_pkey == NULL) + goto err; + ptype = EVP_PKEY_RSA; + pp = &xi->x_pkey->dec_pkey; + if ((int)strlen(header) > 10) /* assume encrypted */ + raw = 1; + } else +#endif +#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(); + if (xi->x_pkey == NULL) + goto err; + ptype = EVP_PKEY_DSA; + pp = &xi->x_pkey->dec_pkey; + if ((int)strlen(header) > 10) /* assume encrypted */ + raw = 1; + } else +#endif +#ifndef OPENSSL_NO_EC + 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(); + if (xi->x_pkey == NULL) + goto err; + ptype = EVP_PKEY_EC; + pp = &xi->x_pkey->dec_pkey; + if ((int)strlen(header) > 10) /* assume encrypted */ + raw = 1; + } else +#endif + { + 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)) { + PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, ERR_R_ASN1_LIB); + goto err; + } + } else if (d2i(pp, &p, len) == NULL) { + PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, 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; ((int)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) +{ + EVP_CIPHER_CTX ctx; + int i, ret = 0; + unsigned char *data = NULL; + const char *objstr = NULL; + char buf[PEM_BUFSIZE]; + unsigned char *iv = NULL; + + if (enc != NULL) { + objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc)); + if (objstr == NULL) { + PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, 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) { + PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, 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) { + PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, + PEM_R_UNSUPPORTED_CIPHER); + goto err; + } + + /* create the right magic header stuff */ + OPENSSL_assert(strlen(objstr) + 23 + 2 * enc->iv_len + 13 <= + sizeof buf); + buf[0] = '\0'; + PEM_proc_type(buf, PEM_TYPE_ENCRYPTED); + PEM_dek_info(buf, objstr, enc->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 */ +#ifndef OPENSSL_NO_RSA + /* 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; +#endif + } + } + + /* 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((char *)&ctx, sizeof(ctx)); + OPENSSL_cleanse(buf, PEM_BUFSIZE); + return (ret); +} |