The length of nd_option is units of 8 octets.
Currently, for nd_options which is undefined in the ICMPv6 packet library,
the parser assumes that the length is [8 * length - 2].
It causes fails while parsing these options.
This patch fixes it to parse such options correctly.
Signed-off-by: Satoshi Fujimoto <satoshi.fujimo...@gmail.com>
---
ryu/lib/packet/icmpv6.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/ryu/lib/packet/icmpv6.py b/ryu/lib/packet/icmpv6.py
index 1e5eaea..7608169 100644
--- a/ryu/lib/packet/icmpv6.py
+++ b/ryu/lib/packet/icmpv6.py
@@ -363,7 +363,7 @@ class nd_router_advert(stringify.StringifyMixin):
if cls_ is not None:
option = cls_.parser(buf, offset)
else:
- option = buf[offset:offset + (length * 8 - 2)]
+ option = buf[offset:offset + (length * 8)]
options.append(option)
offset += len(option)
msg = cls(ch_l, res >> 6, rou_l, rea_t, ret_t, options)
--
2.7.4
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