| /* |
| * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the OpenSSL license (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| #include <stdio.h> |
| #include "internal/cryptlib.h" |
| #include <openssl/buffer.h> |
| #include <openssl/objects.h> |
| #include <openssl/evp.h> |
| #include <openssl/x509.h> |
| #include <openssl/pem.h> |
| #include <openssl/rsa.h> |
| #include <openssl/dsa.h> |
| |
| #ifndef OPENSSL_NO_STDIO |
| 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 */ |
| } |
| OPENSSL_free(name); |
| name = NULL; |
| OPENSSL_free(header); |
| header = NULL; |
| OPENSSL_free(data); |
| 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: |
| 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; |
| } |
| |
| OPENSSL_free(name); |
| OPENSSL_free(header); |
| 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; |
| |
| 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 * EVP_CIPHER_iv_length(enc) + 13 <= |
| sizeof buf); |
| buf[0] = '\0'; |
| PEM_proc_type(buf, PEM_TYPE_ENCRYPTED); |
| PEM_dek_info(buf, objstr, EVP_CIPHER_iv_length(enc), |
| (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, |
| EVP_PKEY_get0_RSA(xi->x_pkey->dec_pkey), |
| 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(buf, PEM_BUFSIZE); |
| return (ret); |
| } |
