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| author | Steven Barth <cyrus@openwrt.org> | 2015-09-08 12:13:29 +0000 |
|---|---|---|
| committer | Steven Barth <cyrus@openwrt.org> | 2015-09-08 12:13:29 +0000 |
| commit | 1b91cd2663b95c47942448222e74e22176466457 (patch) | |
| tree | 7ce5a82366d0f7af7ce320468cfa42103c353c71 /package/network/ipv6 | |
| parent | 48fe93ea6b26e3078cae647d1abd85694d18e945 (diff) | |
| download | master-31e0f0ae-1b91cd2663b95c47942448222e74e22176466457.tar.gz master-31e0f0ae-1b91cd2663b95c47942448222e74e22176466457.tar.bz2 master-31e0f0ae-1b91cd2663b95c47942448222e74e22176466457.zip | |
map: be less restrictive when matching lw4over6 prefixes
Signed-off-by: Steven Barth <steven@midlink.org>
SVN-Revision: 46819
Diffstat (limited to 'package/network/ipv6')
| -rw-r--r-- | package/network/ipv6/map/Makefile | 2 | ||||
| -rw-r--r-- | package/network/ipv6/map/src/mapcalc.c | 15 |
2 files changed, 11 insertions, 6 deletions
diff --git a/package/network/ipv6/map/Makefile b/package/network/ipv6/map/Makefile index 1d423150b9..f6f2cd6fde 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:=4 +PKG_RELEASE:=5 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 7aa28e57d5..648840d9b6 100644 --- a/package/network/ipv6/map/src/mapcalc.c +++ b/package/network/ipv6/map/src/mapcalc.c @@ -3,6 +3,7 @@ * * Author: Steven Barth <cyrus@openwrt.org> * Copyright (c) 2014-2015 cisco Systems, Inc. + * Copyright (c) 2015 Steven Barth <cyrus@openwrt.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 @@ -112,7 +113,7 @@ static void handle_dump(struct ubus_request *req __attribute__((unused)), } static void match_prefix(int *pdlen, struct in6_addr *pd, struct blob_attr *cur, - const struct in6_addr *ipv6prefix, int prefix6len) + const struct in6_addr *ipv6prefix, int prefix6len, bool lw4o6) { struct blob_attr *d; unsigned drem; @@ -133,13 +134,17 @@ static void match_prefix(int *pdlen, struct in6_addr *pd, struct blob_attr *cur, inet_pton(AF_INET6, blobmsg_get_string(ptb[PREFIX_ATTR_ADDRESS]), &prefix); // lw4over6 /128-address-as-PD matching madness workaround - if (mask == 128) + if (lw4o6 && mask == 128) mask = 64; if (*pdlen < mask && mask >= prefix6len && !bmemcmp(&prefix, ipv6prefix, prefix6len)) { bmemcpy(pd, &prefix, mask); *pdlen = mask; + } else if (lw4o6 && *pdlen < prefix6len && mask < prefix6len && + !bmemcmp(&prefix, ipv6prefix, mask)) { + bmemcpy(pd, ipv6prefix, prefix6len); + *pdlen = prefix6len; } } } @@ -237,7 +242,7 @@ int main(int argc, char *argv[]) ealen = intval; } else if (idx == OPT_PREFIX4LEN && (intval = strtoul(value, NULL, 0)) <= 32 && !errno) { prefix4len = intval; - } else if (idx == OPT_PREFIX6LEN && (intval = strtoul(value, NULL, 0)) <= 112 && !errno) { + } else if (idx == OPT_PREFIX6LEN && (intval = strtoul(value, NULL, 0)) <= 128 && !errno) { prefix6len = intval; } else if (idx == OPT_IPV4PREFIX && inet_pton(AF_INET, value, &ipv4prefix) == 1) { // dummy @@ -289,10 +294,10 @@ int main(int argc, char *argv[]) blobmsg_get_string(tb[IFACE_ATTR_INTERFACE])))) continue; - match_prefix(&pdlen, &pd, tb[IFACE_ATTR_PREFIX], &ipv6prefix, prefix6len); + match_prefix(&pdlen, &pd, tb[IFACE_ATTR_PREFIX], &ipv6prefix, prefix6len, lw4o6); if (lw4o6) - match_prefix(&pdlen, &pd, tb[IFACE_ATTR_ADDRESS], &ipv6prefix, prefix6len); + match_prefix(&pdlen, &pd, tb[IFACE_ATTR_ADDRESS], &ipv6prefix, prefix6len, lw4o6); if (pdlen >= 0) { iface = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]); |