Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/zebra/ipforward_sysctl.c b/zebra/ipforward_sysctl.c
new file mode 100644
index 0000000..bc9d12b
--- /dev/null
+++ b/zebra/ipforward_sysctl.c
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* IP forward control by sysctl function.
+ * Copyright (C) 1997, 1999 Kunihiro Ishiguro
+ */
+
+#include <zebra.h>
+
+#if !defined(GNU_LINUX)
+
+#include "privs.h"
+#include "zebra/ipforward.h"
+#include "zebra/zebra_errors.h"
+
+#include "log.h"
+#include "lib_errors.h"
+
+#define MIB_SIZ 4
+
+extern struct zebra_privs_t zserv_privs;
+
+/* IPv4 forwarding control MIB. */
+int mib[MIB_SIZ] = {CTL_NET, PF_INET, IPPROTO_IP, IPCTL_FORWARDING};
+
+int ipforward(void)
+{
+	size_t len;
+	int ipforwarding = 0;
+
+	len = sizeof(ipforwarding);
+	if (sysctl(mib, MIB_SIZ, &ipforwarding, &len, 0, 0) < 0) {
+		flog_err_sys(EC_LIB_SYSTEM_CALL,
+			     "Can't get ipforwarding value");
+		return -1;
+	}
+	return ipforwarding;
+}
+
+int ipforward_on(void)
+{
+	size_t len;
+	int ipforwarding = 1;
+
+	len = sizeof(ipforwarding);
+	frr_with_privs(&zserv_privs) {
+		if (sysctl(mib, MIB_SIZ, NULL, NULL, &ipforwarding, len) < 0) {
+			flog_err_sys(EC_LIB_SYSTEM_CALL,
+				     "Can't set ipforwarding on");
+			return -1;
+		}
+	}
+	return ipforwarding;
+}
+
+int ipforward_off(void)
+{
+	size_t len;
+	int ipforwarding = 0;
+
+	len = sizeof(ipforwarding);
+	frr_with_privs(&zserv_privs) {
+		if (sysctl(mib, MIB_SIZ, NULL, NULL, &ipforwarding, len) < 0) {
+			flog_err_sys(EC_LIB_SYSTEM_CALL,
+				     "Can't set ipforwarding on");
+			return -1;
+		}
+	}
+	return ipforwarding;
+}
+
+/* IPv6 forwarding control MIB. */
+int mib_ipv6[MIB_SIZ] = {CTL_NET, PF_INET6,
+#if defined(BSD_V6_SYSCTL)
+			 IPPROTO_IPV6, IPV6CTL_FORWARDING
+#else  /* NOT BSD_V6_SYSCTL */
+			 IPPROTO_IP, IP6CTL_FORWARDING
+#endif /* BSD_V6_SYSCTL */
+};
+
+int ipforward_ipv6(void)
+{
+	size_t len;
+	int ip6forwarding = 0;
+
+	len = sizeof(ip6forwarding);
+	frr_with_privs(&zserv_privs) {
+		if (sysctl(mib_ipv6, MIB_SIZ, &ip6forwarding, &len, 0, 0) < 0) {
+			flog_err_sys(EC_LIB_SYSTEM_CALL,
+				     "can't get ip6forwarding value");
+			return -1;
+		}
+	}
+	return ip6forwarding;
+}
+
+int ipforward_ipv6_on(void)
+{
+	size_t len;
+	int ip6forwarding = 1;
+
+	len = sizeof(ip6forwarding);
+	frr_with_privs(&zserv_privs) {
+		if (sysctl(mib_ipv6, MIB_SIZ, NULL, NULL, &ip6forwarding, len)
+		    < 0) {
+			flog_err_sys(EC_LIB_SYSTEM_CALL,
+				     "can't get ip6forwarding value");
+			return -1;
+		}
+	}
+	return ip6forwarding;
+}
+
+int ipforward_ipv6_off(void)
+{
+	size_t len;
+	int ip6forwarding = 0;
+
+	len = sizeof(ip6forwarding);
+	frr_with_privs(&zserv_privs) {
+		if (sysctl(mib_ipv6, MIB_SIZ, NULL, NULL, &ip6forwarding, len)
+		    < 0) {
+			flog_err_sys(EC_LIB_SYSTEM_CALL,
+				     "can't get ip6forwarding value");
+			return -1;
+		}
+	}
+	return ip6forwarding;
+}
+
+#endif /* !defined(GNU_LINUX) */