patch-2.1.15 linux/net/ipv4/sysctl_net_ipv4.c

• Lines: 104
• Date: Thu Dec 12 16:54:24 1996
• Orig file: v2.1.14/linux/net/ipv4/sysctl_net_ipv4.c
• Orig date: Tue Nov 19 15:54:01 1996

diff -u --recursive --new-file v2.1.14/linux/net/ipv4/sysctl_net_ipv4.c linux/net/ipv4/sysctl_net_ipv4.c
@@ -1,4 +1,4 @@
-/* -*- linux-c -*-
+/*
  * sysctl_net_ipv4.c: sysctl interface to net IPV4 subsystem.
  *
  * Begun April 1, 1996, Mike Shaver.
@@ -7,6 +7,9 @@
 
 #include <linux/mm.h>
 #include <linux/sysctl.h>
+#include <net/snmp.h>
+#include <net/ip.h>
+#include <net/route.h>
 #include <net/tcp.h>
 
 /*
@@ -35,9 +38,31 @@
 extern int tcp_sysctl_congavoid(ctl_table *ctl, int write, struct file * filp,
 				void *buffer, size_t *lenp);
 
+struct ipv4_config ipv4_config = { 1, 1, 1, 1, };
+struct ipv4_config ipv4_def_router_config = { 0, 1, 1, 1, 1, 1, 1, };
+struct ipv4_config ipv4_def_host_config = { 1, 1, 1, 1, };
+
+int ipv4_sysctl_forwarding(ctl_table *ctl, int write, struct file * filp,
+			   void *buffer, size_t *lenp)
+{
+	int val = IS_ROUTER;
+	int ret;
+
+	ret = proc_dointvec(ctl, write, filp, buffer, lenp);
+
+	if (write && IS_ROUTER != val) {
+		if (IS_ROUTER)
+			ipv4_config = ipv4_def_router_config;
+		else
+			ipv4_config = ipv4_def_host_config;
+		rt_cache_flush(0);
+        }
+        return ret;
+}
+
 ctl_table ipv4_table[] = {
         {NET_IPV4_ARP_RES_TIME, "arp_res_time",
-         &sysctl_arp_res_time, sizeof(int), 0644, NULL, &proc_dointvec},
+	 &sysctl_arp_res_time, sizeof(int), 0644, NULL, &proc_dointvec},
         {NET_IPV4_ARP_DEAD_RES_TIME, "arp_dead_res_time",
          &sysctl_arp_dead_res_time, sizeof(int), 0644, NULL, &proc_dointvec},
         {NET_IPV4_ARP_MAX_TRIES, "arp_max_tries",
@@ -52,15 +77,47 @@
         {NET_IPV4_ARP_CONFIRM_TIMEOUT, "arp_confirm_timeout",
          &sysctl_arp_confirm_timeout, sizeof(int), 0644, NULL,
          &proc_dointvec},
-#if 0
-	{TCP_PMTU_DISC, "tcp_pmtu_discovery",
-	&ipv4_pmtu_discovery, sizeof(int), 644, 
-	NULL, &proc_dointvec, &sysctl_intvec_minmax, 
-	&boolean_min, &boolean_max},
-#endif
-
 	{NET_IPV4_TCP_VEGAS_CONG_AVOID, "tcp_vegas_cong_avoid",
 	 &sysctl_tcp_cong_avoidance, sizeof(int), 0644,
 	 NULL, &tcp_sysctl_congavoid },
+        {NET_IPV4_FORWARDING, "ip_forwarding",
+         &ip_statistics.IpForwarding, sizeof(int), 0644, NULL,
+         &ipv4_sysctl_forwarding},
+        {NET_IPV4_DEFAULT_TTL, "ip_default_ttl",
+         &ip_statistics.IpDefaultTTL, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_RFC1812_FILTER, "ip_rfc1812_filter",
+         &ipv4_config.rfc1812_filter, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_LOG_MARTIANS, "ip_log_martians",
+         &ipv4_config.log_martians, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_SOURCE_ROUTE, "ip_source_route",
+         &ipv4_config.source_route, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_ADDRMASK_AGENT, "ip_addrmask_agent",
+         &ipv4_config.addrmask_agent, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_BOOTP_AGENT, "ip_bootp_agent",
+         &ipv4_config.bootp_agent, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_BOOTP_RELAY, "ip_bootp_relay",
+         &ipv4_config.bootp_relay, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_FIB_MODEL, "ip_fib_model",
+         &ipv4_config.fib_model, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_NO_PMTU_DISC, "ip_no_pmtu_disc",
+         &ipv4_config.no_pmtu_disc, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_ACCEPT_REDIRECTS, "ip_accept_redirects",
+         &ipv4_config.accept_redirects, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_SECURE_REDIRECTS, "ip_secure_redirects",
+         &ipv4_config.secure_redirects, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_RFC1620_REDIRECTS, "ip_rfc1620_redirects",
+         &ipv4_config.rfc1620_redirects, sizeof(int), 0644, NULL,
+         &proc_dointvec},
 	{0}
 };