Avoid unhelpful warnings about UDP buffer sizes.

[tinc] / src / net_setup.c

diff --git a/src/net_setup.c b/src/net_setup.c
index 6181631..d789126 100644 (file)
--- a/src/net_setup.c
+++ b/src/net_setup.c
@@ -1,7 +1,7 @@
 /*
     net_setup.c -- Setup.
     Copyright (C) 1998-2005 Ivo Timmermans,
-                  2000-2017 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2021 Guus Sliepen <guus@tinc-vpn.org>
                   2006      Scott Lamb <slamb@slamb.org>
                   2010      Brandon Black <blblack@gmail.com>
 
@@ -935,6 +935,8 @@ static bool setup_myself(void) {
                        logger(DEBUG_ALWAYS, LOG_ERR, "UDPRcvBuf cannot be negative!");
                        return false;
                }
+
+               udp_rcvbuf_warnings = true;
        }
 
        if(get_config_int(lookup_config(config_tree, "UDPSndBuf"), &udp_sndbuf)) {
@@ -942,6 +944,8 @@ static bool setup_myself(void) {
                        logger(DEBUG_ALWAYS, LOG_ERR, "UDPSndBuf cannot be negative!");
                        return false;
                }
+
+               udp_sndbuf_warnings = true;
        }
 
        get_config_int(lookup_config(config_tree, "FWMark"), &fwmark);
@@ -1019,8 +1023,49 @@ static bool setup_myself(void) {
        /* Compression */
 
        if(get_config_int(lookup_config(config_tree, "Compression"), &myself->incompression)) {
-               if(myself->incompression < 0 || myself->incompression > 11) {
+               switch(myself->incompression) {
+               case 12:
+#ifdef HAVE_LZ4
+                       break;
+#else
+                       logger(DEBUG_ALWAYS, LOG_ERR, "Bogus compression level!");
+                       logger(DEBUG_ALWAYS, LOG_ERR, "LZ4 compression is unavailable on this node.");
+                       return false;
+#endif
+
+               case 11:
+               case 10:
+#ifdef HAVE_LZO
+                       break;
+#else
+                       logger(DEBUG_ALWAYS, LOG_ERR, "Bogus compression level!");
+                       logger(DEBUG_ALWAYS, LOG_ERR, "LZO compression is unavailable on this node.");
+                       return false;
+#endif
+
+               case 9:
+               case 8:
+               case 7:
+               case 6:
+               case 5:
+               case 4:
+               case 3:
+               case 2:
+               case 1:
+#ifdef HAVE_ZLIB
+                       break;
+#else
+                       logger(DEBUG_ALWAYS, LOG_ERR, "Bogus compression level!");
+                       logger(DEBUG_ALWAYS, LOG_ERR, "ZLIB compression is unavailable on this node.");
+                       return false;
+#endif
+
+               case 0:
+                       break;
+
+               default:
                        logger(DEBUG_ALWAYS, LOG_ERR, "Bogus compression level!");
+                       logger(DEBUG_ALWAYS, LOG_ERR, "Compression level %i is unrecognized by this node.", myself->incompression);
                        return false;
                }
        } else {