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/*
* uhttpd - Tiny single-threaded httpd - TLS helper
*
* Copyright (C) 2010 Jo-Philipp Wich <xm@subsignal.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "uhttpd.h"
#include "uhttpd-tls.h"
#include "uhttpd-utils.h"
SSL_CTX * uh_tls_ctx_init()
{
SSL_CTX *c;
SSL_load_error_strings();
SSL_library_init();
if( (c = SSL_CTX_new(TLSv1_server_method())) != NULL )
SSL_CTX_set_verify(c, SSL_VERIFY_NONE, NULL);
return c;
}
int uh_tls_ctx_cert(SSL_CTX *c, const char *file)
{
int rv;
if( (rv = SSL_CTX_use_certificate_file(c, file, SSL_FILETYPE_PEM)) < 1 )
rv = SSL_CTX_use_certificate_file(c, file, SSL_FILETYPE_ASN1);
return rv;
}
int uh_tls_ctx_key(SSL_CTX *c, const char *file)
{
int rv;
if( (rv = SSL_CTX_use_PrivateKey_file(c, file, SSL_FILETYPE_PEM)) < 1 )
rv = SSL_CTX_use_PrivateKey_file(c, file, SSL_FILETYPE_ASN1);
return rv;
}
void uh_tls_ctx_free(struct listener *l)
{
SSL_CTX_free(l->tls);
}
int uh_tls_client_accept(struct client *c)
{
int rv;
if( c->server && c->server->tls )
{
c->tls = SSL_new(c->server->tls);
if( c->tls )
{
if( (rv = SSL_set_fd(c->tls, c->socket)) < 1 )
goto cleanup;
if( (rv = SSL_accept(c->tls)) < 1 )
goto cleanup;
}
else
rv = 0;
}
else
{
c->tls = NULL;
rv = 1;
}
done:
return rv;
cleanup:
SSL_free(c->tls);
c->tls = NULL;
goto done;
}
int uh_tls_client_recv(struct client *c, void *buf, int len)
{
int rv = SSL_read(c->tls, buf, len);
return (rv > 0) ? rv : -1;
}
int uh_tls_client_send(struct client *c, void *buf, int len)
{
int rv = SSL_write(c->tls, buf, len);
return (rv > 0) ? rv : -1;
}
void uh_tls_client_close(struct client *c)
{
if( c->tls )
{
SSL_shutdown(c->tls);
SSL_free(c->tls);
c->tls = NULL;
}
}
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