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// TLS handler for HaxServ
//
// Written by: Test_User <hax@andrewyu.org>
//
// This is free and unencumbered software released into the public
// domain.
//
// Anyone is free to copy, modify, publish, use, compile, sell, or
// distribute this software, either in source code form or as a compiled
// binary, for any purpose, commercial or non-commercial, and by any
// means.
//
// In jurisdictions that recognize copyright laws, the author or authors
// of this software dedicate any and all copyright interest in the
// software to the public domain. We make this dedication for the benefit
// of the public at large and to the detriment of our heirs and
// successors. We intend this dedication to be an overt act of
// relinquishment in perpetuity of all present and future rights to this
// software under copyright law.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#include <gnutls/gnutls.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include "network.h"
#include "config.h"
#include "types.h"
#include "tls.h"
gnutls_session_t session;
int fd;
int connect_tls(void) {
// TODO: free used things on failure
if (gnutls_global_init() < 0)
return 1;
gnutls_certificate_credentials_t xcred; // TODO: if we reconnect
if (gnutls_certificate_allocate_credentials(&xcred) < 0)
return 2;
if (gnutls_certificate_set_x509_system_trust(xcred) < 0)
return 3;
if (gnutls_init(&session, GNUTLS_CLIENT) < 0)
return 4;
if (gnutls_server_name_set(session, GNUTLS_NAME_DNS, address.data, address.len) < 0)
return 5;
if (gnutls_set_default_priority(session) < 0)
return 6;
if (gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred) < 0)
return 7;
gnutls_session_set_verify_cert(session, address.data, 0);
fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1)
return 8;
struct sockaddr sockaddr;
resolve(address.data, port.data, &sockaddr);
int ret = connect(fd, &sockaddr, sizeof(sockaddr));
if (ret != 0)
return 9;
gnutls_transport_set_int(session, fd);
gnutls_handshake_set_timeout(session, GNUTLS_DEFAULT_HANDSHAKE_TIMEOUT);
do {
ret = gnutls_handshake(session);
} while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
if (ret < 0)
return 10;
gnutls_record_set_timeout(session, 60000); // 60s
return 0;
}
extern inline size_t RECV(char *buf, size_t buflen, char *timeout); // Should force it to get compiled into tls.o
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