mirror of
https://github.com/matrix-construct/construct
synced 2024-08-24 18:42:16 +02:00
780 lines
18 KiB
C
780 lines
18 KiB
C
/*
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* librb: a library used by charybdis and other things
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* gnutls.c: gnutls related code
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*
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* Copyright (C) 2007-2008 ircd-ratbox development team
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* Copyright (C) 2007-2008 Aaron Sethman <androsyn@ratbox.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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* USA
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*
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*/
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#include <rb/rb.h>
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#include <rb/commio_int.h>
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#include <rb/ssl.h>
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#ifdef HAVE_GNUTLS
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#include <gnutls/gnutls.h>
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#include <gnutls/x509.h>
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#include <gnutls/abstract.h>
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#if (GNUTLS_VERSION_MAJOR < 3)
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# include <gcrypt.h>
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#else
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# include <gnutls/crypto.h>
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#endif
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static gnutls_certificate_credentials_t x509;
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static gnutls_dh_params_t dh_params;
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static gnutls_priority_t default_priority;
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/* These are all used for getting GnuTLS to supply a client cert. */
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#define MAX_CERTS 6
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static unsigned int x509_cert_count;
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static gnutls_x509_crt_t x509_cert[MAX_CERTS];
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static gnutls_x509_privkey_t x509_key;
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#if GNUTLS_VERSION_MAJOR < 3
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static int cert_callback(gnutls_session_t session, const gnutls_datum_t *req_ca_rdn, int nreqs,
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const gnutls_pk_algorithm_t *sign_algos, int sign_algos_len, gnutls_retr_st *st);
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#else
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static int cert_callback(gnutls_session_t session, const gnutls_datum_t *req_ca_rdn, int nreqs,
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const gnutls_pk_algorithm_t *sign_algos, int sign_algos_len, gnutls_retr2_st *st);
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#endif
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#define SSL_P(x) *((gnutls_session_t *)F->ssl)
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void
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rb_ssl_shutdown(rb_fde_t *F)
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{
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int i;
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if(F == NULL || F->ssl == NULL)
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return;
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for(i = 0; i < 4; i++)
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{
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if(gnutls_bye(SSL_P(F), GNUTLS_SHUT_RDWR) == GNUTLS_E_SUCCESS)
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break;
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}
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gnutls_deinit(SSL_P(F));
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rb_free(F->ssl);
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}
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unsigned int
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rb_ssl_handshake_count(rb_fde_t *F)
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{
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return F->handshake_count;
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}
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void
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rb_ssl_clear_handshake_count(rb_fde_t *F)
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{
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F->handshake_count = 0;
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}
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static void
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rb_ssl_timeout(rb_fde_t *F, void *notused)
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{
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lrb_assert(F->accept != NULL);
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F->accept->callback(F, RB_ERR_TIMEOUT, NULL, 0, F->accept->data);
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}
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static int
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do_ssl_handshake(rb_fde_t *F, PF * callback, void *data)
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{
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int ret;
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int flags;
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ret = gnutls_handshake(SSL_P(F));
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if(ret < 0)
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{
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if((ret == GNUTLS_E_INTERRUPTED && rb_ignore_errno(errno)) || ret == GNUTLS_E_AGAIN)
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{
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if(gnutls_record_get_direction(SSL_P(F)) == 0)
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flags = RB_SELECT_READ;
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else
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flags = RB_SELECT_WRITE;
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rb_setselect(F, flags, callback, data);
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return 0;
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}
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F->ssl_errno = ret;
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return -1;
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}
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return 1; /* handshake is finished..go about life */
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}
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static void
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rb_ssl_tryaccept(rb_fde_t *F, void *data)
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{
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int ret;
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struct acceptdata *ad;
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lrb_assert(F->accept != NULL);
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ret = do_ssl_handshake(F, rb_ssl_tryaccept, NULL);
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/* do_ssl_handshake does the rb_setselect */
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if(ret == 0)
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return;
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ad = F->accept;
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F->accept = NULL;
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rb_settimeout(F, 0, NULL, NULL);
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rb_setselect(F, RB_SELECT_READ | RB_SELECT_WRITE, NULL, NULL);
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if(ret > 0)
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ad->callback(F, RB_OK, (struct sockaddr *)&ad->S, ad->addrlen, ad->data);
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else
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ad->callback(F, RB_ERROR_SSL, NULL, 0, ad->data);
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rb_free(ad);
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}
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void
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rb_ssl_start_accepted(rb_fde_t *new_F, ACCB * cb, void *data, int timeout)
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{
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gnutls_session_t *ssl;
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new_F->type |= RB_FD_SSL;
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ssl = new_F->ssl = rb_malloc(sizeof(gnutls_session_t));
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new_F->accept = rb_malloc(sizeof(struct acceptdata));
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new_F->accept->callback = cb;
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new_F->accept->data = data;
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rb_settimeout(new_F, timeout, rb_ssl_timeout, NULL);
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new_F->accept->addrlen = 0;
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gnutls_init(ssl, GNUTLS_SERVER);
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gnutls_set_default_priority(*ssl);
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gnutls_credentials_set(*ssl, GNUTLS_CRD_CERTIFICATE, x509);
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gnutls_dh_set_prime_bits(*ssl, 1024);
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gnutls_transport_set_ptr(*ssl, (gnutls_transport_ptr_t) (long int)new_F->fd);
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gnutls_certificate_server_set_request(*ssl, GNUTLS_CERT_REQUEST);
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gnutls_priority_set(*ssl, default_priority);
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if(do_ssl_handshake(new_F, rb_ssl_tryaccept, NULL))
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{
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struct acceptdata *ad = new_F->accept;
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new_F->accept = NULL;
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ad->callback(new_F, RB_OK, (struct sockaddr *)&ad->S, ad->addrlen, ad->data);
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rb_free(ad);
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}
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}
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void
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rb_ssl_accept_setup(rb_fde_t *F, rb_fde_t *new_F, struct sockaddr *st, int addrlen)
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{
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new_F->type |= RB_FD_SSL;
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new_F->ssl = rb_malloc(sizeof(gnutls_session_t));
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new_F->accept = rb_malloc(sizeof(struct acceptdata));
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new_F->accept->callback = F->accept->callback;
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new_F->accept->data = F->accept->data;
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rb_settimeout(new_F, 10, rb_ssl_timeout, NULL);
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memcpy(&new_F->accept->S, st, addrlen);
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new_F->accept->addrlen = addrlen;
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gnutls_init((gnutls_session_t *) new_F->ssl, GNUTLS_SERVER);
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gnutls_set_default_priority(SSL_P(new_F));
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gnutls_credentials_set(SSL_P(new_F), GNUTLS_CRD_CERTIFICATE, x509);
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gnutls_dh_set_prime_bits(SSL_P(new_F), 1024);
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gnutls_transport_set_ptr(SSL_P(new_F), (gnutls_transport_ptr_t) (long int)rb_get_fd(new_F));
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gnutls_certificate_server_set_request(SSL_P(new_F), GNUTLS_CERT_REQUEST);
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gnutls_priority_set(SSL_P(F), default_priority);
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if(do_ssl_handshake(F, rb_ssl_tryaccept, NULL))
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{
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struct acceptdata *ad = F->accept;
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F->accept = NULL;
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ad->callback(F, RB_OK, (struct sockaddr *)&ad->S, ad->addrlen, ad->data);
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rb_free(ad);
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}
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}
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static ssize_t
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rb_ssl_read_or_write(int r_or_w, rb_fde_t *F, void *rbuf, const void *wbuf, size_t count)
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{
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ssize_t ret;
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gnutls_session_t *ssl = F->ssl;
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if(r_or_w == 0)
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ret = gnutls_record_recv(*ssl, rbuf, count);
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else
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ret = gnutls_record_send(*ssl, wbuf, count);
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if(ret < 0)
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{
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switch (ret)
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{
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case GNUTLS_E_AGAIN:
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case GNUTLS_E_INTERRUPTED:
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if(rb_ignore_errno(errno))
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{
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if(gnutls_record_get_direction(*ssl) == 0)
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return RB_RW_SSL_NEED_READ;
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else
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return RB_RW_SSL_NEED_WRITE;
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break;
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}
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default:
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F->ssl_errno = ret;
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errno = EIO;
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return RB_RW_IO_ERROR;
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}
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}
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return ret;
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}
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ssize_t
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rb_ssl_read(rb_fde_t *F, void *buf, size_t count)
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{
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return rb_ssl_read_or_write(0, F, buf, NULL, count);
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}
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ssize_t
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rb_ssl_write(rb_fde_t *F, const void *buf, size_t count)
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{
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return rb_ssl_read_or_write(1, F, NULL, buf, count);
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}
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#if (GNUTLS_VERSION_MAJOR < 3)
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static void
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rb_gcry_random_seed(void *unused)
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{
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gcry_fast_random_poll();
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}
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#endif
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int
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rb_init_ssl(void)
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{
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gnutls_global_init();
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if(gnutls_certificate_allocate_credentials(&x509) != GNUTLS_E_SUCCESS)
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{
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rb_lib_log("rb_init_ssl: Unable to allocate SSL/TLS certificate credentials");
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return 0;
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}
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#if GNUTLS_VERSION_MAJOR < 3
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gnutls_certificate_client_set_retrieve_function(x509, cert_callback);
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#else
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gnutls_certificate_set_retrieve_function(x509, cert_callback);
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#endif
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#if (GNUTLS_VERSION_MAJOR < 3)
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rb_event_addish("rb_gcry_random_seed", rb_gcry_random_seed, NULL, 300);
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#endif
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return 1;
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}
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/* We only have one certificate to authenticate with, as both client and server. Unfortunately,
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* GnuTLS tries to be clever, and as client, will attempt to use a certificate that the server
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* will trust. We usually use self-signed certs, though, so the result of this search is always
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* nothing. Therefore, it uses no certificate to authenticate as a client. This is undesirable
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* as it breaks fingerprint auth. Thus, we use this callback to force GnuTLS to always
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* authenticate with our certificate at all times.
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*/
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#if GNUTLS_VERSION_MAJOR < 3
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static int
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cert_callback(gnutls_session_t session, const gnutls_datum_t *req_ca_rdn, int nreqs,
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const gnutls_pk_algorithm_t *sign_algos, int sign_algos_len, gnutls_retr_st *st)
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#else
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static int
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cert_callback(gnutls_session_t session, const gnutls_datum_t *req_ca_rdn, int nreqs,
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const gnutls_pk_algorithm_t *sign_algos, int sign_algos_len, gnutls_retr2_st *st)
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#endif
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{
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/* XXX - ugly hack. Tell GnuTLS to use the first (only) certificate we have for auth. */
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#if (GNUTLS_VERSION_MAJOR < 3)
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st->type = GNUTLS_CRT_X509;
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#else
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st->cert_type = GNUTLS_CRT_X509;
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st->key_type = GNUTLS_PRIVKEY_X509;
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#endif
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st->ncerts = x509_cert_count;
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st->cert.x509 = x509_cert;
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st->key.x509 = x509_key;
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st->deinit_all = 0;
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return 0;
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}
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static void
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rb_free_datum_t(gnutls_datum_t * d)
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{
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rb_free(d->data);
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rb_free(d);
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}
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static gnutls_datum_t *
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rb_load_file_into_datum_t(const char *file)
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{
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FILE *f;
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gnutls_datum_t *datum;
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struct stat fileinfo;
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int count;
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if((f = fopen(file, "r")) == NULL)
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return NULL;
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if(fstat(fileno(f), &fileinfo))
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return NULL;
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datum = rb_malloc(sizeof(gnutls_datum_t));
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if(fileinfo.st_size > 131072) /* deal with retards */
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datum->size = 131072;
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else
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datum->size = fileinfo.st_size;
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datum->data = rb_malloc(datum->size + 1);
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count = fread(datum->data, datum->size, 1, f);
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fclose(f);
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if(count != 1)
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{
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rb_free_datum_t(datum);
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return NULL;
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}
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return datum;
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}
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int
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rb_setup_ssl_server(const char *certfile, const char *keyfile, const char *dhfile, const char *cipher_list)
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{
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int ret;
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const char *err;
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gnutls_datum_t *d_cert, *d_key;
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if(certfile == NULL)
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{
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rb_lib_log("rb_setup_ssl_server: No certificate file");
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return 0;
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}
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if(keyfile == NULL)
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keyfile = certfile;
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if((d_cert = rb_load_file_into_datum_t(certfile)) == NULL)
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{
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rb_lib_log("rb_setup_ssl_server: Error loading certificate: %s", strerror(errno));
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return 0;
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}
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if((d_key = rb_load_file_into_datum_t(keyfile)) == NULL)
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{
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rb_lib_log("rb_setup_ssl_server: Error loading key: %s", strerror(errno));
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return 0;
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}
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/* In addition to creating the certificate set, we also need to store our cert elsewhere
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* so we can force GnuTLS to identify with it when acting as a client.
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*/
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gnutls_x509_privkey_init(&x509_key);
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if ((ret = gnutls_x509_privkey_import(x509_key, d_key, GNUTLS_X509_FMT_PEM)) != GNUTLS_E_SUCCESS)
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{
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rb_lib_log("rb_setup_ssl_server: Error loading key file: %s", gnutls_strerror(ret));
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return 0;
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}
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x509_cert_count = MAX_CERTS;
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if ((ret = gnutls_x509_crt_list_import(x509_cert, &x509_cert_count, d_cert, GNUTLS_X509_FMT_PEM,
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GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED)) < 0)
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{
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rb_lib_log("rb_setup_ssl_server: Error loading certificate: %s", gnutls_strerror(ret));
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return 0;
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}
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x509_cert_count = ret;
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if((ret =
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gnutls_certificate_set_x509_key_mem(x509, d_cert, d_key,
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GNUTLS_X509_FMT_PEM)) != GNUTLS_E_SUCCESS)
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{
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rb_lib_log("rb_setup_ssl_server: Error loading certificate or key file: %s",
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gnutls_strerror(ret));
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return 0;
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}
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rb_free_datum_t(d_cert);
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rb_free_datum_t(d_key);
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if(dhfile != NULL)
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{
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if(gnutls_dh_params_init(&dh_params) == GNUTLS_E_SUCCESS)
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{
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gnutls_datum_t *data;
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int xret;
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data = rb_load_file_into_datum_t(dhfile);
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if(data != NULL)
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{
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xret = gnutls_dh_params_import_pkcs3(dh_params, data,
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GNUTLS_X509_FMT_PEM);
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if(xret < 0)
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rb_lib_log
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("rb_setup_ssl_server: Error parsing DH file: %s\n",
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gnutls_strerror(xret));
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rb_free_datum_t(data);
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}
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gnutls_certificate_set_dh_params(x509, dh_params);
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}
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else
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rb_lib_log("rb_setup_ssl_server: Unable to setup DH parameters");
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}
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ret = gnutls_priority_init(&default_priority, cipher_list, &err);
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if (ret < 0)
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{
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rb_lib_log("rb_setup_ssl_server: syntax error (using defaults instead) in ssl cipher list at: %s", err);
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gnutls_priority_init(&default_priority, NULL, &err);
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return 1;
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}
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return 1;
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}
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int
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rb_ssl_listen(rb_fde_t *F, int backlog, int defer_accept)
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{
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int result;
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result = rb_listen(F, backlog, defer_accept);
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F->type = RB_FD_SOCKET | RB_FD_LISTEN | RB_FD_SSL;
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return result;
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}
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struct ssl_connect
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{
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CNCB *callback;
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void *data;
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int timeout;
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};
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static void
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rb_ssl_connect_realcb(rb_fde_t *F, int status, struct ssl_connect *sconn)
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{
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F->connect->callback = sconn->callback;
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F->connect->data = sconn->data;
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rb_free(sconn);
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rb_connect_callback(F, status);
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}
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static void
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rb_ssl_tryconn_timeout_cb(rb_fde_t *F, void *data)
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{
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rb_ssl_connect_realcb(F, RB_ERR_TIMEOUT, data);
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}
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static void
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rb_ssl_tryconn_cb(rb_fde_t *F, void *data)
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|
{
|
|
struct ssl_connect *sconn = data;
|
|
int ret;
|
|
|
|
ret = do_ssl_handshake(F, rb_ssl_tryconn_cb, (void *)sconn);
|
|
|
|
switch (ret)
|
|
{
|
|
case -1:
|
|
rb_ssl_connect_realcb(F, RB_ERROR_SSL, sconn);
|
|
break;
|
|
case 0:
|
|
/* do_ssl_handshake does the rb_setselect stuff */
|
|
return;
|
|
default:
|
|
break;
|
|
|
|
|
|
}
|
|
rb_ssl_connect_realcb(F, RB_OK, sconn);
|
|
}
|
|
|
|
static void
|
|
rb_ssl_tryconn(rb_fde_t *F, int status, void *data)
|
|
{
|
|
struct ssl_connect *sconn = data;
|
|
if(status != RB_OK)
|
|
{
|
|
rb_ssl_connect_realcb(F, status, sconn);
|
|
return;
|
|
}
|
|
|
|
F->type |= RB_FD_SSL;
|
|
|
|
|
|
rb_settimeout(F, sconn->timeout, rb_ssl_tryconn_timeout_cb, sconn);
|
|
F->ssl = rb_malloc(sizeof(gnutls_session_t));
|
|
gnutls_init(F->ssl, GNUTLS_CLIENT);
|
|
gnutls_set_default_priority(SSL_P(F));
|
|
gnutls_credentials_set(SSL_P(F), GNUTLS_CRD_CERTIFICATE, x509);
|
|
gnutls_dh_set_prime_bits(SSL_P(F), 1024);
|
|
gnutls_transport_set_ptr(SSL_P(F), (gnutls_transport_ptr_t) (long int)F->fd);
|
|
gnutls_priority_set(SSL_P(F), default_priority);
|
|
|
|
do_ssl_handshake(F, rb_ssl_tryconn_cb, (void *)sconn);
|
|
}
|
|
|
|
void
|
|
rb_connect_tcp_ssl(rb_fde_t *F, struct sockaddr *dest,
|
|
struct sockaddr *clocal, CNCB * callback, void *data, int timeout)
|
|
{
|
|
struct ssl_connect *sconn;
|
|
if(F == NULL)
|
|
return;
|
|
|
|
sconn = rb_malloc(sizeof(struct ssl_connect));
|
|
sconn->data = data;
|
|
sconn->callback = callback;
|
|
sconn->timeout = timeout;
|
|
rb_connect_tcp(F, dest, clocal, rb_ssl_tryconn, sconn, timeout);
|
|
|
|
}
|
|
|
|
void
|
|
rb_ssl_start_connected(rb_fde_t *F, CNCB * callback, void *data, int timeout)
|
|
{
|
|
struct ssl_connect *sconn;
|
|
if(F == NULL)
|
|
return;
|
|
|
|
sconn = rb_malloc(sizeof(struct ssl_connect));
|
|
sconn->data = data;
|
|
sconn->callback = callback;
|
|
sconn->timeout = timeout;
|
|
F->connect = rb_malloc(sizeof(struct conndata));
|
|
F->connect->callback = callback;
|
|
F->connect->data = data;
|
|
F->type |= RB_FD_SSL;
|
|
F->ssl = rb_malloc(sizeof(gnutls_session_t));
|
|
|
|
gnutls_init(F->ssl, GNUTLS_CLIENT);
|
|
gnutls_set_default_priority(SSL_P(F));
|
|
gnutls_credentials_set(SSL_P(F), GNUTLS_CRD_CERTIFICATE, x509);
|
|
gnutls_dh_set_prime_bits(SSL_P(F), 1024);
|
|
gnutls_transport_set_ptr(SSL_P(F), (gnutls_transport_ptr_t) (long int)F->fd);
|
|
gnutls_priority_set(SSL_P(F), default_priority);
|
|
|
|
rb_settimeout(F, sconn->timeout, rb_ssl_tryconn_timeout_cb, sconn);
|
|
|
|
do_ssl_handshake(F, rb_ssl_tryconn_cb, (void *)sconn);
|
|
}
|
|
|
|
int
|
|
rb_init_prng(const char *path, prng_seed_t seed_type)
|
|
{
|
|
#if GNUTLS_VERSION_MAJOR < 3
|
|
gcry_fast_random_poll();
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
rb_get_random(void *buf, size_t length)
|
|
{
|
|
#if GNUTLS_VERSION_MAJOR < 3
|
|
gcry_randomize(buf, length, GCRY_STRONG_RANDOM);
|
|
#else
|
|
gnutls_rnd(GNUTLS_RND_KEY, buf, length);
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
const char *
|
|
rb_get_ssl_strerror(rb_fde_t *F)
|
|
{
|
|
return gnutls_strerror(F->ssl_errno);
|
|
}
|
|
|
|
static int
|
|
make_certfp(gnutls_x509_crt_t cert, uint8_t certfp[RB_SSL_CERTFP_LEN], int method)
|
|
{
|
|
gnutls_digest_algorithm_t algo;
|
|
size_t digest_size;
|
|
bool spki = false;
|
|
int len;
|
|
|
|
switch(method)
|
|
{
|
|
case RB_SSL_CERTFP_METH_CERT_SHA1:
|
|
algo = GNUTLS_DIG_SHA1;
|
|
len = RB_SSL_CERTFP_LEN_SHA1;
|
|
break;
|
|
case RB_SSL_CERTFP_METH_SPKI_SHA256:
|
|
spki = true;
|
|
case RB_SSL_CERTFP_METH_CERT_SHA256:
|
|
algo = GNUTLS_DIG_SHA256;
|
|
len = RB_SSL_CERTFP_LEN_SHA256;
|
|
break;
|
|
case RB_SSL_CERTFP_METH_SPKI_SHA512:
|
|
spki = true;
|
|
case RB_SSL_CERTFP_METH_CERT_SHA512:
|
|
algo = GNUTLS_DIG_SHA512;
|
|
len = RB_SSL_CERTFP_LEN_SHA512;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
if (!spki)
|
|
{
|
|
if (gnutls_x509_crt_get_fingerprint(cert, algo, certfp, &digest_size) != 0)
|
|
len = 0;
|
|
}
|
|
else
|
|
{
|
|
gnutls_pubkey_t pubkey;
|
|
unsigned char *der_pubkey = NULL;
|
|
size_t der_pubkey_len = 0;
|
|
|
|
if (gnutls_pubkey_init(&pubkey) == GNUTLS_E_SUCCESS)
|
|
{
|
|
if (gnutls_pubkey_import_x509(pubkey, cert, 0) == GNUTLS_E_SUCCESS)
|
|
{
|
|
if (gnutls_pubkey_export(pubkey, GNUTLS_X509_FMT_DER, der_pubkey, &der_pubkey_len) == GNUTLS_E_SHORT_MEMORY_BUFFER)
|
|
{
|
|
der_pubkey = rb_malloc(der_pubkey_len);
|
|
|
|
if (gnutls_pubkey_export(pubkey, GNUTLS_X509_FMT_DER, der_pubkey, &der_pubkey_len) != GNUTLS_E_SUCCESS)
|
|
{
|
|
rb_free(der_pubkey);
|
|
der_pubkey = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
gnutls_pubkey_deinit(pubkey);
|
|
}
|
|
|
|
if (der_pubkey)
|
|
{
|
|
if (gnutls_hash_fast(algo, der_pubkey, der_pubkey_len, certfp) != 0)
|
|
len = 0;
|
|
|
|
rb_free(der_pubkey);
|
|
}
|
|
else
|
|
{
|
|
len = 0;
|
|
}
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
int
|
|
rb_get_ssl_certfp(rb_fde_t *F, uint8_t certfp[RB_SSL_CERTFP_LEN], int method)
|
|
{
|
|
gnutls_x509_crt_t cert;
|
|
unsigned int cert_list_size;
|
|
const gnutls_datum_t *cert_list;
|
|
int len;
|
|
|
|
if (gnutls_certificate_type_get(SSL_P(F)) != GNUTLS_CRT_X509)
|
|
return 0;
|
|
|
|
if (gnutls_x509_crt_init(&cert) < 0)
|
|
return 0;
|
|
|
|
cert_list_size = 0;
|
|
cert_list = gnutls_certificate_get_peers(SSL_P(F), &cert_list_size);
|
|
if (cert_list == NULL)
|
|
{
|
|
gnutls_x509_crt_deinit(cert);
|
|
return 0;
|
|
}
|
|
|
|
if (gnutls_x509_crt_import(cert, &cert_list[0], GNUTLS_X509_FMT_DER) < 0)
|
|
{
|
|
gnutls_x509_crt_deinit(cert);
|
|
return 0;
|
|
}
|
|
|
|
len = make_certfp(cert, certfp, method);
|
|
gnutls_x509_crt_deinit(cert);
|
|
return len;
|
|
}
|
|
|
|
int
|
|
rb_get_ssl_certfp_file(const char *filename, uint8_t certfp[RB_SSL_CERTFP_LEN], int method)
|
|
{
|
|
gnutls_x509_crt_t cert;
|
|
gnutls_datum_t *d_cert;
|
|
unsigned int len;
|
|
|
|
if ((d_cert = rb_load_file_into_datum_t(filename)) == NULL)
|
|
return -1;
|
|
|
|
if (gnutls_x509_crt_init(&cert) < 0)
|
|
return -1;
|
|
|
|
if (gnutls_x509_crt_import(cert, d_cert, GNUTLS_X509_FMT_PEM) != 0)
|
|
return -1;
|
|
|
|
len = make_certfp(cert, certfp, method);
|
|
gnutls_x509_crt_deinit(cert);
|
|
return len;
|
|
}
|
|
|
|
int
|
|
rb_supports_ssl(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
rb_get_ssl_info(char *buf, size_t len)
|
|
{
|
|
snprintf(buf, len, "GNUTLS: compiled (%s), library (%s)",
|
|
LIBGNUTLS_VERSION, gnutls_check_version(NULL));
|
|
}
|
|
|
|
const char *
|
|
rb_ssl_get_cipher(rb_fde_t *F)
|
|
{
|
|
static char buf[1024];
|
|
|
|
const char* proto_name =
|
|
gnutls_protocol_get_name(gnutls_protocol_get_version(SSL_P(F)));
|
|
|
|
const char* kex_alg_name =
|
|
gnutls_kx_get_name(gnutls_kx_get(SSL_P(F)));
|
|
|
|
const char* cipher_alg_name =
|
|
gnutls_cipher_get_name(gnutls_cipher_get(SSL_P(F)));
|
|
|
|
const char* mac_alg_name =
|
|
gnutls_mac_get_name(gnutls_mac_get(SSL_P(F)));
|
|
|
|
(void) snprintf(buf, sizeof buf, "%s%s%s%s%s%s%s",
|
|
proto_name ? proto_name : "",
|
|
proto_name ? ", " : "",
|
|
kex_alg_name ? kex_alg_name : "",
|
|
kex_alg_name ? "-" : "",
|
|
cipher_alg_name ? cipher_alg_name : "",
|
|
cipher_alg_name ? "-" : "",
|
|
mac_alg_name ? mac_alg_name : "");
|
|
|
|
return buf;
|
|
}
|
|
|
|
#endif /* HAVE_GNUTLS */
|