1 /* IP forward control by sysctl function.
2 * Copyright (C) 1997, 1999 Kunihiro Ishiguro
4 * This file is part of GNU Zebra.
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #if !defined(GNU_LINUX)
26 #include "zebra/ipforward.h"
27 #include "zebra/zebra_errors.h"
30 #include "lib_errors.h"
34 extern struct zebra_privs_t zserv_privs
;
36 /* IPv4 forwarding control MIB. */
37 int mib
[MIB_SIZ
] = {CTL_NET
, PF_INET
, IPPROTO_IP
, IPCTL_FORWARDING
};
44 len
= sizeof(ipforwarding
);
45 if (sysctl(mib
, MIB_SIZ
, &ipforwarding
, &len
, 0, 0) < 0) {
46 flog_err_sys(EC_LIB_SYSTEM_CALL
,
47 "Can't get ipforwarding value");
53 int ipforward_on(void)
58 len
= sizeof(ipforwarding
);
59 frr_with_privs(&zserv_privs
) {
60 if (sysctl(mib
, MIB_SIZ
, NULL
, NULL
, &ipforwarding
, len
) < 0) {
61 flog_err_sys(EC_LIB_SYSTEM_CALL
,
62 "Can't set ipforwarding on");
69 int ipforward_off(void)
74 len
= sizeof(ipforwarding
);
75 frr_with_privs(&zserv_privs
) {
76 if (sysctl(mib
, MIB_SIZ
, NULL
, NULL
, &ipforwarding
, len
) < 0) {
77 flog_err_sys(EC_LIB_SYSTEM_CALL
,
78 "Can't set ipforwarding on");
85 /* IPv6 forwarding control MIB. */
86 int mib_ipv6
[MIB_SIZ
] = {CTL_NET
, PF_INET6
,
87 #if defined(BSD_V6_SYSCTL)
88 IPPROTO_IPV6
, IPV6CTL_FORWARDING
89 #else /* NOT BSD_V6_SYSCTL */
90 IPPROTO_IP
, IP6CTL_FORWARDING
91 #endif /* BSD_V6_SYSCTL */
94 int ipforward_ipv6(void)
97 int ip6forwarding
= 0;
99 len
= sizeof(ip6forwarding
);
100 frr_with_privs(&zserv_privs
) {
101 if (sysctl(mib_ipv6
, MIB_SIZ
, &ip6forwarding
, &len
, 0, 0) < 0) {
102 flog_err_sys(EC_LIB_SYSTEM_CALL
,
103 "can't get ip6forwarding value");
107 return ip6forwarding
;
110 int ipforward_ipv6_on(void)
113 int ip6forwarding
= 1;
115 len
= sizeof(ip6forwarding
);
116 frr_with_privs(&zserv_privs
) {
117 if (sysctl(mib_ipv6
, MIB_SIZ
, NULL
, NULL
, &ip6forwarding
, len
)
119 flog_err_sys(EC_LIB_SYSTEM_CALL
,
120 "can't get ip6forwarding value");
124 return ip6forwarding
;
127 int ipforward_ipv6_off(void)
130 int ip6forwarding
= 0;
132 len
= sizeof(ip6forwarding
);
133 frr_with_privs(&zserv_privs
) {
134 if (sysctl(mib_ipv6
, MIB_SIZ
, NULL
, NULL
, &ip6forwarding
, len
)
136 flog_err_sys(EC_LIB_SYSTEM_CALL
,
137 "can't get ip6forwarding value");
141 return ip6forwarding
;
144 #endif /* !defined(GNU_LINUX) */