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https://git.libssh.org/projects/libssh.git
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83b43443e5
This makes unnecessary to call ssh_init() when the library is dynamically loaded. Also removes the threads shared library. The used threads implementation is chosen in configuration time, changing the ssh_threads_get_default() depending on the available threads library. Internally, it is expected a threads implementation providing: - void ssh_mutex_lock(void **mutex); - void ssh_mutex_unlock(void **mutex); - struct ssh_threads_callbacks_struct *ssh_threads_get_default(void); and a crypto implementation providing: - int crypto_thread_init(struct ssh_threads_callbacks_struct *user_callbacks); - void crypto_thread_finalize(void); This adds internal threads implementation for pthreads and noop. Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com> Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2018 by Anderson Toshiyuki Sasaki
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*
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* The SSH Library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version.
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*
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* The SSH Library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with the SSH Library; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "libssh/crypto.h"
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#include "libssh/threads.h"
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#include <libssh/callbacks.h>
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#if (GCRYPT_VERSION_NUMBER >= 0x010600)
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/* libgcrypt >= 1.6 does not support custom callbacks */
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GCRY_THREAD_OPTION_PTHREAD_IMPL;
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int crypto_thread_init(struct ssh_threads_callbacks_struct *user_callbacks)
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{
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(void) user_callbacks;
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return SSH_OK;
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}
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#else
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/* Libgcrypt < 1.6 specific way of handling thread callbacks */
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static struct gcry_thread_cbs gcrypt_threads_callbacks;
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int crypto_thread_init(struct ssh_threads_callbacks_struct *user_callbacks)
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{
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int cmp;
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if (user_callbacks == NULL) {
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return SSH_OK;
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}
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cmp = strcmp(user_callbacks->type, "threads_noop");
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if (cmp == 0) {
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gcrypt_threads_callbacks.option= GCRY_THREAD_OPTION_VERSION << 8 ||
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GCRY_THREAD_OPTION_DEFAULT;
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} else {
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gcrypt_threads_callbacks.option= GCRY_THREAD_OPTION_VERSION << 8 ||
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GCRY_THREAD_OPTION_USER;
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}
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gcrypt_threads_callbacks.mutex_init = user_callbacks->mutex_init;
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gcrypt_threads_callbacks.mutex_destroy = user_callbacks->mutex_destroy;
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gcrypt_threads_callbacks.mutex_lock = user_callbacks->mutex_lock;
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gcrypt_threads_callbacks.mutex_unlock = user_callbacks->mutex_unlock;
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gcry_control(GCRYCTL_SET_THREAD_CBS, &gcrypt_threads_callbacks);
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return SSH_OK;
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}
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#endif /* GCRYPT_VERSION_NUMBER */
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void crypto_thread_finalize(void)
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{
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return;
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}
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