X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fsubnet.c;h=63d169fe2e4abac6ec263827b6e11b536b401be4;hb=86c2990327fdf7ec1197aa73cb2b9a926a734db4;hp=2c67dcc1c07115798f89c7963a4854a609c62f23;hpb=36623e15a1c8685e5d8730345c1a7f9c93710fef;p=meshlink

diff --git a/src/subnet.c b/src/subnet.c
index 2c67dcc1..63d169fe 100644
--- a/src/subnet.c
+++ b/src/subnet.c
@@ -135,7 +135,7 @@ int subnet_compare(const subnet_t *a, const subnet_t *b) {
 	case SUBNET_IPV6:
 		return subnet_compare_ipv6(a, b);
 	default:
-		logger(LOG_ERR, "subnet_compare() was called with unknown subnet type %d, exitting!",
+		logger(DEBUG_ALWAYS, LOG_ERR, "subnet_compare() was called with unknown subnet type %d, exitting!",
 			   a->type);
 		exit(0);
 	}
@@ -269,12 +269,84 @@ bool str2net(subnet_t *subnet, const char *subnetstr) {
 		return true;
 	}
 
+	// IPv6 short form
+	if(strstr(subnetstr, "::")) {
+		const char *p;
+		char *q;
+		int colons = 0;
+
+		// Count number of colons
+		for(p = subnetstr; *p; p++)
+			if(*p == ':')
+				colons++;
+
+		if(colons > 7)
+			return false;
+
+		// Scan numbers before the double colon
+		p = subnetstr;
+		for(i = 0; i < colons; i++) {
+			if(*p == ':')
+				break;
+			x[i] = strtoul(p, &q, 0x10);
+			if(!q || p == q || *q != ':')
+				return false;
+			p = ++q;
+		}
+
+		p++;
+		colons -= i;
+		if(!i) {
+			p++;
+			colons--;
+		}
+
+		if(!*p || *p == '/' || *p == '#')
+			colons--;
+
+		// Fill in the blanks
+		for(; i < 8 - colons; i++)
+			x[i] = 0;
+
+		// Scan the remaining numbers
+		for(; i < 8; i++) {
+			x[i] = strtoul(p, &q, 0x10);
+			if(!q || p == q)
+				return false;
+			if(i == 7) {
+				p = q;
+				break;
+			}
+			if(*q != ':')
+				return false;
+			p = ++q;
+		}
+
+		l = 128;
+		if(*p == '/')
+			sscanf(p, "/%d#%d", &l, &weight);
+		else if(*p == '#')
+			sscanf(p, "#%d", &weight);
+
+		if(l < 0 || l > 128)
+			return false;
+
+		subnet->type = SUBNET_IPV6;
+		subnet->net.ipv6.prefixlength = l;
+		subnet->weight = weight;
+
+		for(i = 0; i < 8; i++)
+			subnet->net.ipv6.address.x[i] = htons(x[i]);
+
+		return true;
+	}
+
 	return false;
 }
 
 bool net2str(char *netstr, int len, const subnet_t *subnet) {
 	if(!netstr || !subnet) {
-		logger(LOG_ERR, "net2str() was called with netstr=%p, subnet=%p!", netstr, subnet);
+		logger(DEBUG_ALWAYS, LOG_ERR, "net2str() was called with netstr=%p, subnet=%p!", netstr, subnet);
 		return false;
 	}
 
@@ -315,7 +387,7 @@ bool net2str(char *netstr, int len, const subnet_t *subnet) {
 			break;
 
 		default:
-			logger(LOG_ERR,
+			logger(DEBUG_ALWAYS, LOG_ERR,
 				   "net2str() was called with unknown subnet type %d, exiting!",
 				   subnet->type);
 			exit(0);