X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fnet_setup.c;h=1ecb3c65f2cdf697ab111e946f7e8bedd5af5c1e;hb=0f18410ebaf1c503e5d0ca9624b24df930561d7d;hp=618163162253144d9c0cc0bae0d6722051e1c715;hpb=01053c258e27dfd7c2009b0d2d251ea0dc96b15f;p=tinc

diff --git a/src/net_setup.c b/src/net_setup.c
index 61816316..1ecb3c65 100644
--- 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>
 
@@ -1019,8 +1019,49 @@ 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 {