mirror of https://github.com/omar-polo/gmid.git
213 lines
6.7 KiB
C
213 lines
6.7 KiB
C
#include "config.h"
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#include <sys/types.h>
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#include <sys/uio.h>
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#include <limits.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/x509_vfy.h>
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#include <openssl/pem.h>
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#include <openssl/ssl.h>
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#include "log.h"
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#ifndef HAVE_SSL_CTX_LOAD_VERIFY_MEM
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#define X509_LOOKUP_add_mem(x,iov,type) \
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X509_LOOKUP_ctrl((x),X509_L_MEM,(const char *)(iov),\
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(long)(type),NULL)
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#define X509_L_MEM 3
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#define SSL_ECDH_CURVE "prime256v1"
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X509_LOOKUP_METHOD *
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X509_LOOKUP_mem(void);
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static int
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X509_STORE_load_mem(X509_STORE *ctx, void *buf, int len)
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{
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X509_LOOKUP *lookup;
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struct iovec iov;
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lookup = X509_STORE_add_lookup(ctx, X509_LOOKUP_mem());
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if (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 (X509_LOOKUP_add_mem(lookup, &iov, X509_FILETYPE_PEM) != 1)
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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_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len)
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{
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return (X509_STORE_load_mem(SSL_CTX_get_cert_store(ctx), buf, len));
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}
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#endif /* HAVE_SSL_CTX_LOAD_VERIFY_MEM */
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#ifndef HAVE_SSL_CTX_USE_CERTIFICATE_CHAIN_MEM
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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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/*
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* Read a bio that contains our certificate in "PEM" format,
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* possibly followed by a sequence of CA certificates that should be
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* sent to the peer in the Certificate message.
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*/
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static int
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ssl_ctx_use_certificate_chain_bio(SSL_CTX *ctx, BIO *in)
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{
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int ret = 0;
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X509 *x = NULL;
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ERR_clear_error(); /* clear error stack for SSL_CTX_use_certificate() */
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x = PEM_read_bio_X509_AUX(in, NULL, SSL_CTX_get_default_passwd_cb(ctx),
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SSL_CTX_get_default_passwd_cb_userdata(ctx));
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if (x == NULL) {
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SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_PEM_LIB);
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goto end;
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}
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ret = SSL_CTX_use_certificate(ctx, x);
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if (ERR_peek_error() != 0)
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ret = 0;
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/* Key/certificate mismatch doesn't imply ret==0 ... */
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if (ret) {
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/*
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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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X509 *ca;
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STACK_OF(X509) *chain;
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int r;
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unsigned long err;
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SSL_CTX_get_extra_chain_certs_only(ctx, &chain);
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if (chain != NULL) {
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sk_X509_pop_free(chain, X509_free);
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SSL_CTX_clear_extra_chain_certs(ctx);
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}
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while ((ca = PEM_read_bio_X509(in, NULL,
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SSL_CTX_get_default_passwd_cb(ctx),
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SSL_CTX_get_default_passwd_cb_userdata(ctx))) != NULL) {
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r = SSL_CTX_add_extra_chain_cert(ctx, ca);
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if (!r) {
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X509_free(ca);
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ret = 0;
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goto end;
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}
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/*
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* Note that we must not free r if it was successfully
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* added to the chain (while we must free the main
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* certificate, since its reference count is increased
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* by SSL_CTX_use_certificate).
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*/
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}
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/* When the while loop ends, it's usually just EOF. */
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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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ret = 0; /* some real error */
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}
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end:
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if (x != NULL)
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X509_free(x);
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return (ret);
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}
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int
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SSL_CTX_use_certificate_chain_mem(SSL_CTX *ctx, void *buf, int len)
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{
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BIO *in;
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int ret = 0;
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in = BIO_new_mem_buf(buf, len);
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if (in == NULL) {
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SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_BUF_LIB);
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goto end;
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}
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ret = ssl_ctx_use_certificate_chain_bio(ctx, in);
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end:
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BIO_free(in);
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return (ret);
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}
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#endif /* HAVE_SSL_CTX_USE_CERTIFICATE_CHAIN_MEM */
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