From 718e3744195351130f4ce7dbe0613f4b3e23df93 Mon Sep 17 00:00:00 2001 From: paul <paul> Date: Fri, 13 Dec 2002 20:15:29 +0000 Subject: Initial revision --- zebra/ipforward_sysctl.c | 146 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 zebra/ipforward_sysctl.c (limited to 'zebra/ipforward_sysctl.c') diff --git a/zebra/ipforward_sysctl.c b/zebra/ipforward_sysctl.c new file mode 100644 index 000000000..828eb8655 --- /dev/null +++ b/zebra/ipforward_sysctl.c @@ -0,0 +1,146 @@ +/* IP forward control by sysctl function. + * Copyright (C) 1997, 1999 Kunihiro Ishiguro + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * GNU Zebra 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Zebra; see the file COPYING. If not, write to the Free + * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ + +#include <zebra.h> + +#ifdef NRL +#include <netinet6/in6.h> +#endif /* NRL */ + +#include "log.h" + +#define MIB_SIZ 4 + +/* IPv4 forwarding control MIB. */ +int mib[MIB_SIZ] = +{ + CTL_NET, + PF_INET, + IPPROTO_IP, + IPCTL_FORWARDING +}; + +int +ipforward () +{ + int len; + int ipforwarding = 0; + + len = sizeof ipforwarding; + if (sysctl (mib, MIB_SIZ, &ipforwarding, &len, 0, 0) < 0) + { + zlog_warn ("Can't get ipforwarding value"); + return -1; + } + return ipforwarding; +} + +int +ipforward_on () +{ + int len; + int ipforwarding = 1; + + len = sizeof ipforwarding; + if (sysctl (mib, MIB_SIZ, NULL, NULL, &ipforwarding, len) < 0) + { + zlog_warn ("Can't set ipforwarding on"); + return -1; + } + return ipforwarding; +} + +int +ipforward_off () +{ + int len; + int ipforwarding = 0; + + len = sizeof ipforwarding; + if (sysctl (mib, MIB_SIZ, NULL, NULL, &ipforwarding, len) < 0) + { + zlog_warn ("Can't set ipforwarding on"); + return -1; + } + return ipforwarding; +} + +#ifdef HAVE_IPV6 + +/* IPv6 forwarding control MIB. */ +int mib_ipv6[MIB_SIZ] = +{ + CTL_NET, + PF_INET6, +#if defined(KAME) || (defined(__bsdi__) && _BSDI_VERSION >= 199802 ) || defined(NRL) + IPPROTO_IPV6, + IPV6CTL_FORWARDING +#else /* NOT KAME */ + IPPROTO_IP, + IP6CTL_FORWARDING +#endif /* KAME */ +}; + +int +ipforward_ipv6 () +{ + int len; + int ip6forwarding = 0; + + len = sizeof ip6forwarding; + if (sysctl (mib_ipv6, MIB_SIZ, &ip6forwarding, &len, 0, 0) < 0) + { + zlog_warn ("can't get ip6forwarding value"); + return -1; + } + return ip6forwarding; +} + +int +ipforward_ipv6_on () +{ + int len; + int ip6forwarding = 1; + + len = sizeof ip6forwarding; + if (sysctl (mib_ipv6, MIB_SIZ, NULL, NULL, &ip6forwarding, len) < 0) + { + zlog_warn ("can't get ip6forwarding value"); + return -1; + } + return ip6forwarding; +} + +int +ipforward_ipv6_off () +{ + int len; + int ip6forwarding = 0; + + len = sizeof ip6forwarding; + if (sysctl (mib_ipv6, MIB_SIZ, NULL, NULL, &ip6forwarding, len) < 0) + { + zlog_warn ("can't get ip6forwarding value"); + return -1; + } + return ip6forwarding; +} +#endif /* HAVE_IPV6 */ -- cgit v1.2.3