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/* $OpenBSD: ssl_privsep.c,v 1.1 2014/01/27 15:49:52 sunil Exp $ */ |
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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* All rights reserved. |
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* |
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* This package is an SSL implementation written |
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* by Eric Young (eay@cryptsoft.com). |
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* The implementation was written so as to conform with Netscapes SSL. |
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* |
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* This library is free for commercial and non-commercial use as long as |
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* the following conditions are aheared to. The following conditions |
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* apply to all code found in this distribution, be it the RC4, RSA, |
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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* included with this distribution is covered by the same copyright terms |
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* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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* |
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* Copyright remains Eric Young's, and as such any Copyright notices in |
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* the code are not to be removed. |
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* If this package is used in a product, Eric Young should be given attribution |
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* as the author of the parts of the library used. |
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* This can be in the form of a textual message at program startup or |
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* in documentation (online or textual) provided with the package. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* "This product includes cryptographic software written by |
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* Eric Young (eay@cryptsoft.com)" |
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* The word 'cryptographic' can be left out if the rouines from the library |
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* being used are not cryptographic related :-). |
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* 4. If you include any Windows specific code (or a derivative thereof) from |
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* the apps directory (application code) you must include an acknowledgement: |
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* The licence and distribution terms for any publically available version or |
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* derivative of this code cannot be changed. i.e. this code cannot simply be |
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* copied and put under another distribution licence |
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* [including the GNU Public Licence.] |
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*/ |
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/* |
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* SSL operations needed when running in a privilege separated environment. |
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* Adapted from openssl's ssl_rsa.c by Pierre-Yves Ritschard . |
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*/ |
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#include <sys/types.h> |
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#include <sys/uio.h> |
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#include <unistd.h> |
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#include <stdio.h> |
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#include <openssl/err.h> |
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#include <openssl/bio.h> |
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#include <openssl/objects.h> |
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#include <openssl/evp.h> |
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#include <openssl/x509.h> |
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#include <openssl/pem.h> |
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#include <openssl/ssl.h> |
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int ssl_ctx_use_private_key(SSL_CTX *, char *, off_t); |
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int ssl_ctx_use_certificate_chain(SSL_CTX *, char *, off_t); |
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int ssl_ctx_load_verify_memory(SSL_CTX *, char *, off_t); |
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int ssl_by_mem_ctrl(X509_LOOKUP *, int, const char *, long, char **); |
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X509_LOOKUP_METHOD x509_mem_lookup = { |
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"Load cert from memory", |
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NULL, /* new */ |
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NULL, /* free */ |
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NULL, /* init */ |
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NULL, /* shutdown */ |
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ssl_by_mem_ctrl, /* ctrl */ |
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NULL, /* get_by_subject */ |
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NULL, /* get_by_issuer_serial */ |
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NULL, /* get_by_fingerprint */ |
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NULL, /* get_by_alias */ |
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}; |
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#define X509_L_ADD_MEM 3 |
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int |
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ssl_ctx_use_private_key(SSL_CTX *ctx, char *buf, off_t len) |
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{ |
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int ret; |
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BIO *in; |
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EVP_PKEY *pkey; |
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ret = 0; |
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if ((in = BIO_new_mem_buf(buf, len)) == NULL) { |
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SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, ERR_R_BUF_LIB); |
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return 0; |
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} |
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pkey = PEM_read_bio_PrivateKey(in, NULL, |
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ctx->default_passwd_callback, |
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ctx->default_passwd_callback_userdata); |
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if (pkey == NULL) { |
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SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, ERR_R_PEM_LIB); |
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goto end; |
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} |
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ret = SSL_CTX_use_PrivateKey(ctx, pkey); |
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EVP_PKEY_free(pkey); |
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end: |
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if (in != NULL) |
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BIO_free(in); |
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return ret; |
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} |
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int |
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ssl_ctx_use_certificate_chain(SSL_CTX *ctx, char *buf, off_t len) |
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{ |
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int ret; |
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BIO *in; |
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X509 *x; |
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X509 *ca; |
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unsigned long err; |
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ret = 0; |
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x = ca = NULL; |
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if ((in = BIO_new_mem_buf(buf, len)) == NULL) { |
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SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE, ERR_R_BUF_LIB); |
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goto end; |
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} |
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if ((x = PEM_read_bio_X509(in, NULL, |
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ctx->default_passwd_callback, |
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ctx->default_passwd_callback_userdata)) == NULL) { |
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SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE, ERR_R_PEM_LIB); |
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goto end; |
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} |
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if (!SSL_CTX_use_certificate(ctx, x) || ERR_peek_error() != 0) |
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goto end; |
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/* If we could set up our certificate, now proceed to |
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* the CA certificates. |
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*/ |
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if (ctx->extra_certs != NULL) { |
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sk_X509_pop_free(ctx->extra_certs, X509_free); |
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ctx->extra_certs = NULL; |
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} |
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while ((ca = PEM_read_bio_X509(in, NULL, |
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ctx->default_passwd_callback, |
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ctx->default_passwd_callback_userdata)) != NULL) { |
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if (!SSL_CTX_add_extra_chain_cert(ctx, ca)) |
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goto end; |
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} |
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err = ERR_peek_last_error(); |
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if (ERR_GET_LIB(err) == ERR_LIB_PEM && |
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ERR_GET_REASON(err) == PEM_R_NO_START_LINE) |
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ERR_clear_error(); |
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else |
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goto end; |
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ret = 1; |
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end: |
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if (ca != NULL) |
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X509_free(ca); |
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if (x != NULL) |
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X509_free(x); |
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if (in != NULL) |
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BIO_free(in); |
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return (ret); |
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} |
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int |
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ssl_ctx_load_verify_memory(SSL_CTX *ctx, char *buf, off_t len) |
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{ |
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X509_LOOKUP *lu; |
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struct iovec iov; |
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if ((lu = X509_STORE_add_lookup(ctx->cert_store, |
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&x509_mem_lookup)) == NULL) |
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return (0); |
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iov.iov_base = buf; |
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iov.iov_len = len; |
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if (!ssl_by_mem_ctrl(lu, X509_L_ADD_MEM, |
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(const char *)&iov, X509_FILETYPE_PEM, NULL)) |
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return (0); |
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return (1); |
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} |
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int |
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ssl_by_mem_ctrl(X509_LOOKUP *lu, int cmd, const char *buf, |
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long type, char **ret) |
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{ |
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STACK_OF(X509_INFO) *inf; |
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const struct iovec *iov; |
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X509_INFO *itmp; |
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BIO *in = NULL; |
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int i, count = 0; |
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iov = (const struct iovec *)buf; |
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if (type != X509_FILETYPE_PEM) |
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goto done; |
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if ((in = BIO_new_mem_buf(iov->iov_base, iov->iov_len)) == NULL) |
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goto done; |
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if ((inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL)) == NULL) |
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goto done; |
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for (i = 0; i < sk_X509_INFO_num(inf); i++) { |
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itmp = sk_X509_INFO_value(inf, i); |
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if (itmp->x509) { |
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X509_STORE_add_cert(lu->store_ctx, itmp->x509); |
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count++; |
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} |
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if (itmp->crl) { |
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X509_STORE_add_crl(lu->store_ctx, itmp->crl); |
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count++; |
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} |
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} |
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sk_X509_INFO_pop_free(inf, X509_INFO_free); |
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done: |
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if (!count) |
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X509err(X509_F_X509_LOAD_CERT_CRL_FILE,ERR_R_PEM_LIB); |
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if (in != NULL) |
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BIO_free(in); |
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return (count); |
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} |