/* 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.] */ /* ==================================================================== * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. * * 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 above 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 acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED 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 OpenSSL PROJECT OR * ITS 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #include <openssl_grpc/ssl.h> #include <errno.h> #include <string.h> #include <openssl_grpc/asn1.h> #include <openssl_grpc/bio.h> #include <openssl_grpc/err.h> #include <openssl_grpc/mem.h> #include <openssl_grpc/pem.h> #include <openssl_grpc/stack.h> #include <openssl_grpc/x509.h> #include "internal.h" static int xname_cmp(const X509_NAME **a, const X509_NAME **b) { return X509_NAME_cmp(*a, *b); } // TODO(davidben): Is there any reason this doesn't call // |SSL_add_file_cert_subjects_to_stack|? STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) { BIO *in; X509 *x = NULL; X509_NAME *xn = NULL; STACK_OF(X509_NAME) *ret = NULL, *sk; sk = sk_X509_NAME_new(xname_cmp); in = BIO_new(BIO_s_file()); if (sk == NULL || in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); goto err; } if (!BIO_read_filename(in, file)) { goto err; } for (;;) { if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) { break; } if (ret == NULL) { ret = sk_X509_NAME_new_null(); if (ret == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); goto err; } } xn = X509_get_subject_name(x); if (xn == NULL) { goto err; } // Check for duplicates. sk_X509_NAME_sort(sk); if (sk_X509_NAME_find(sk, NULL, xn)) { continue; } xn = X509_NAME_dup(xn); if (xn == NULL || !sk_X509_NAME_push(sk /* non-owning */, xn) || !sk_X509_NAME_push(ret /* owning */, xn)) { X509_NAME_free(xn); goto err; } } if (0) { err: sk_X509_NAME_pop_free(ret, X509_NAME_free); ret = NULL; } sk_X509_NAME_free(sk); BIO_free(in); X509_free(x); if (ret != NULL) { ERR_clear_error(); } return ret; } int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, const char *file) { BIO *in; X509 *x = NULL; X509_NAME *xn = NULL; int ret = 0; int (*oldcmp)(const X509_NAME **a, const X509_NAME **b); oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp); in = BIO_new(BIO_s_file()); if (in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); goto err; } if (!BIO_read_filename(in, file)) { goto err; } for (;;) { if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) { break; } xn = X509_get_subject_name(x); if (xn == NULL) { goto err; } // Check for duplicates. sk_X509_NAME_sort(stack); if (sk_X509_NAME_find(stack, NULL, xn)) { continue; } xn = X509_NAME_dup(xn); if (xn == NULL || !sk_X509_NAME_push(stack, xn)) { X509_NAME_free(xn); goto err; } } ERR_clear_error(); ret = 1; err: BIO_free(in); X509_free(x); (void) sk_X509_NAME_set_cmp_func(stack, oldcmp); return ret; } int SSL_use_certificate_file(SSL *ssl, const char *file, int type) { int reason_code; BIO *in; int ret = 0; X509 *x = NULL; in = BIO_new(BIO_s_file()); if (in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB); goto end; } if (BIO_read_filename(in, file) <= 0) { OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB); goto end; } if (type == SSL_FILETYPE_ASN1) { reason_code = ERR_R_ASN1_LIB; x = d2i_X509_bio(in, NULL); } else if (type == SSL_FILETYPE_PEM) { reason_code = ERR_R_PEM_LIB; x = PEM_read_bio_X509(in, NULL, ssl->ctx->default_passwd_callback, ssl->ctx->default_passwd_callback_userdata); } else { OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE); goto end; } if (x == NULL) { OPENSSL_PUT_ERROR(SSL, reason_code); goto end; } ret = SSL_use_certificate(ssl, x); end: X509_free(x); BIO_free(in); return ret; } int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type) { int reason_code, ret = 0; BIO *in; RSA *rsa = NULL; in = BIO_new(BIO_s_file()); if (in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB); goto end; } if (BIO_read_filename(in, file) <= 0) { OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB); goto end; } if (type == SSL_FILETYPE_ASN1) { reason_code = ERR_R_ASN1_LIB; rsa = d2i_RSAPrivateKey_bio(in, NULL); } else if (type == SSL_FILETYPE_PEM) { reason_code = ERR_R_PEM_LIB; rsa = PEM_read_bio_RSAPrivateKey(in, NULL, ssl->ctx->default_passwd_callback, ssl->ctx->default_passwd_callback_userdata); } else { OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE); goto end; } if (rsa == NULL) { OPENSSL_PUT_ERROR(SSL, reason_code); goto end; } ret = SSL_use_RSAPrivateKey(ssl, rsa); RSA_free(rsa); end: BIO_free(in); return ret; } int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type) { int reason_code, ret = 0; BIO *in; EVP_PKEY *pkey = NULL; in = BIO_new(BIO_s_file()); if (in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB); goto end; } if (BIO_read_filename(in, file) <= 0) { OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB); goto end; } if (type == SSL_FILETYPE_PEM) { reason_code = ERR_R_PEM_LIB; pkey = PEM_read_bio_PrivateKey(in, NULL, ssl->ctx->default_passwd_callback, ssl->ctx->default_passwd_callback_userdata); } else if (type == SSL_FILETYPE_ASN1) { reason_code = ERR_R_ASN1_LIB; pkey = d2i_PrivateKey_bio(in, NULL); } else { OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE); goto end; } if (pkey == NULL) { OPENSSL_PUT_ERROR(SSL, reason_code); goto end; } ret = SSL_use_PrivateKey(ssl, pkey); EVP_PKEY_free(pkey); end: BIO_free(in); return ret; } int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type) { int reason_code; BIO *in; int ret = 0; X509 *x = NULL; in = BIO_new(BIO_s_file()); if (in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB); goto end; } if (BIO_read_filename(in, file) <= 0) { OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB); goto end; } if (type == SSL_FILETYPE_ASN1) { reason_code = ERR_R_ASN1_LIB; x = d2i_X509_bio(in, NULL); } else if (type == SSL_FILETYPE_PEM) { reason_code = ERR_R_PEM_LIB; x = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata); } else { OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE); goto end; } if (x == NULL) { OPENSSL_PUT_ERROR(SSL, reason_code); goto end; } ret = SSL_CTX_use_certificate(ctx, x); end: X509_free(x); BIO_free(in); return ret; } int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type) { int reason_code, ret = 0; BIO *in; RSA *rsa = NULL; in = BIO_new(BIO_s_file()); if (in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB); goto end; } if (BIO_read_filename(in, file) <= 0) { OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB); goto end; } if (type == SSL_FILETYPE_ASN1) { reason_code = ERR_R_ASN1_LIB; rsa = d2i_RSAPrivateKey_bio(in, NULL); } else if (type == SSL_FILETYPE_PEM) { reason_code = ERR_R_PEM_LIB; rsa = PEM_read_bio_RSAPrivateKey(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata); } else { OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE); goto end; } if (rsa == NULL) { OPENSSL_PUT_ERROR(SSL, reason_code); goto end; } ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa); RSA_free(rsa); end: BIO_free(in); return ret; } int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type) { int reason_code, ret = 0; BIO *in; EVP_PKEY *pkey = NULL; in = BIO_new(BIO_s_file()); if (in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB); goto end; } if (BIO_read_filename(in, file) <= 0) { OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB); goto end; } if (type == SSL_FILETYPE_PEM) { reason_code = ERR_R_PEM_LIB; pkey = PEM_read_bio_PrivateKey(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata); } else if (type == SSL_FILETYPE_ASN1) { reason_code = ERR_R_ASN1_LIB; pkey = d2i_PrivateKey_bio(in, NULL); } else { OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE); goto end; } if (pkey == NULL) { OPENSSL_PUT_ERROR(SSL, reason_code); goto end; } ret = SSL_CTX_use_PrivateKey(ctx, pkey); EVP_PKEY_free(pkey); end: BIO_free(in); return ret; } // Read a file that contains our certificate in "PEM" format, possibly followed // by a sequence of CA certificates that should be sent to the peer in the // Certificate message. int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file) { BIO *in; int ret = 0; X509 *x = NULL; ERR_clear_error(); // clear error stack for SSL_CTX_use_certificate() in = BIO_new(BIO_s_file()); if (in == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB); goto end; } if (BIO_read_filename(in, file) <= 0) { OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB); goto end; } x = PEM_read_bio_X509_AUX(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata); if (x == NULL) { OPENSSL_PUT_ERROR(SSL, ERR_R_PEM_LIB); goto end; } ret = SSL_CTX_use_certificate(ctx, x); if (ERR_peek_error() != 0) { ret = 0; // Key/certificate mismatch doesn't imply ret==0 ... } if (ret) { // If we could set up our certificate, now proceed to the CA // certificates. X509 *ca; int r; uint32_t err; SSL_CTX_clear_chain_certs(ctx); while ((ca = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata)) != NULL) { r = SSL_CTX_add0_chain_cert(ctx, ca); if (!r) { X509_free(ca); ret = 0; goto end; } // Note that we must not free r if it was successfully added to the chain // (while we must free the main certificate, since its reference count is // increased by SSL_CTX_use_certificate). } // When the while loop ends, it's usually just EOF. err = ERR_peek_last_error(); if (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE) { ERR_clear_error(); } else { ret = 0; // some real error } } end: X509_free(x); BIO_free(in); return ret; } void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) { ctx->default_passwd_callback = cb; } pem_password_cb *SSL_CTX_get_default_passwd_cb(const SSL_CTX *ctx) { return ctx->default_passwd_callback; } void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *data) { ctx->default_passwd_callback_userdata = data; } void *SSL_CTX_get_default_passwd_cb_userdata(const SSL_CTX *ctx) { return ctx->default_passwd_callback_userdata; }