olsrd: don't mess with the system's ipv4/ipv6 forwarding settings

git-svn-id: svn://svn.openwrt.org/openwrt/packages@15309 3c298f89-4303-0410-b956-a3cf2f4a3e73

net/olsrd/patches/100-no_forwarding_override.patch

@@ -0,0 +1,34 @@
+--- a/src/linux/net.c
++++ b/src/linux/net.c
+@@ -106,6 +106,7 @@ bind_socket_to_device(int sock, char *de
+ int
+ enable_ip_forwarding(int version)
+ {
++#if 0
+   FILE *proc_fwd;
+   const char *const procfile = version == AF_INET ? "/proc/sys/net/ipv4/ip_forward" : "/proc/sys/net/ipv6/conf/all/forwarding";
+ 
+@@ -141,6 +142,7 @@ enable_ip_forwarding(int version)
+     }
+     fclose(proc_fwd);
+   }
++#endif
+   return 1;
+ }
+ 
+@@ -267,6 +269,7 @@ restore_settings(int version)
+   OLSR_PRINTF(1, "Restoring network state\n");
+ 
+   /* Restore IP forwarding to "off" */
++#if 0
+   if (orig_fwd_state == '0') {
+     const char *const procfile = version == AF_INET ? "/proc/sys/net/ipv4/ip_forward" : "/proc/sys/net/ipv6/conf/all/forwarding";
+     FILE *proc_fd;
+@@ -279,6 +282,7 @@ restore_settings(int version)
+       fclose(proc_fd);
+     }
+   }
++#endif
+ 
+   /* Restore global ICMP redirect setting */
+   if (orig_global_redirect_state != '0') {