69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/*-*- 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;
|
|
}
|