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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <sys/socket.h>
#include <sys/un.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#ifdef HAVE_LIBWRAP
#include <tcpd.h>
#endif
#include "tcpwrap.h"
#include "log.h"
bool socket_tcpwrap(int fd, const char *name) {
#ifdef HAVE_LIBWRAP
struct request_info req;
union {
struct sockaddr sa;
struct sockaddr_in in;
struct sockaddr_in6 in6;
struct sockaddr_un un;
struct sockaddr_storage storage;
} sa_union;
socklen_t l = sizeof(sa_union);
if (getsockname(fd, &sa_union.sa, &l) < 0)
return true;
if (sa_union.sa.sa_family != AF_INET &&
sa_union.sa.sa_family != AF_INET6)
return true;
request_init(&req,
RQ_DAEMON, name,
RQ_FILE, fd,
NULL);
fromhost(&req);
if (!hosts_access(&req)) {
log_warning("Connection refused by tcpwrap.");
return false;
}
log_debug("Connection accepted by tcpwrap.");
#endif
return true;
}
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