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-rw-r--r--package/network/ipv6/map/Makefile2
-rw-r--r--package/network/ipv6/map/src/mapcalc.c26
2 files changed, 17 insertions, 11 deletions
diff --git a/package/network/ipv6/map/Makefile b/package/network/ipv6/map/Makefile
index ce04235f28..77967042b3 100644
--- a/package/network/ipv6/map/Makefile
+++ b/package/network/ipv6/map/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=map
PKG_VERSION:=4
-PKG_RELEASE:=9
+PKG_RELEASE:=10
PKG_LICENSE:=GPL-2.0
include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/ipv6/map/src/mapcalc.c b/package/network/ipv6/map/src/mapcalc.c
index 6233bce731..66610c4279 100644
--- a/package/network/ipv6/map/src/mapcalc.c
+++ b/package/network/ipv6/map/src/mapcalc.c
@@ -4,6 +4,7 @@
* Author: Steven Barth <cyrus@openwrt.org>
* Copyright (c) 2014-2015 cisco Systems, Inc.
* Copyright (c) 2015 Steven Barth <cyrus@openwrt.org>
+ * Copyright (c) 2018 Hans Dedecker <dedeckeh@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
@@ -311,25 +312,30 @@ int main(int argc, char *argv[])
if (psidlen <= 0) {
psidlen = ealen - (32 - prefix4len);
+ if (psidlen < 0)
+ psidlen = 0;
+
psid = -1;
}
- if (psid < 0 && psidlen <= 16 && psidlen >= 0 && pdlen >= 0 && ealen >= psidlen) {
+ if (prefix4len < 0 || prefix6len < 0 || ealen < 0 || psidlen > 16 || ealen < psidlen) {
+ fprintf(stderr, "Skipping invalid or incomplete rule: %s\n", argv[i]);
+ status = 1;
+ continue;
+ }
+
+ if (psid < 0 && psidlen >= 0 && pdlen >= 0) {
bmemcpys64(&psid16, &pd, prefix6len + ealen - psidlen, psidlen);
psid = be16_to_cpu(psid16);
}
- psid = psid >> (16 - psidlen);
- psid16 = cpu_to_be16(psid);
- psid = psid << (16 - psidlen);
-
- if (prefix4len < 0 || prefix6len < 0 || ealen < 0 || ealen < psidlen) {
- fprintf(stderr, "Skipping invalid or incomplete rule: %s\n", argv[i]);
- status = 1;
- continue;
+ if (psidlen > 0) {
+ psid = psid >> (16 - psidlen);
+ psid16 = cpu_to_be16(psid);
+ psid = psid << (16 - psidlen);
}
- if ((pdlen >= 0 || ealen == psidlen) && ealen >= psidlen) {
+ if (pdlen >= 0 || ealen == psidlen) {
bmemcpys64(&ipv4addr, &pd, prefix6len, ealen - psidlen);
ipv4addr.s_addr = htonl(ntohl(ipv4addr.s_addr) >> prefix4len);
bmemcpy(&ipv4addr, &ipv4prefix, prefix4len);