On 24 Feb 2020, at 14:21, Hans Petter Selasky wrote:
Hi Hans,
On 2020-02-20 11:56, Bjoern A. Zeeb wrote:
+
+ unfragpartlen = optlen + sizeof(struct ip6_hdr);
+
Hi Bjoren,
This change introduces a slight regression when a host replies to IPv6
ping fragmented packets. The problem is the "unfragpartlen" must also
be set in the else case of "if (opt)", else the payload offset
computation for IPv6 fragments goes wrong by the size of the IPv6
header!
After r358167:
ping6 -s 3000 fe80::ee0d:9aff:fed4:2c8c%mce2
PING6(3048=40+8+3000 bytes) fe80::ee0d:9aff:fed4:2c94%mce2 -->
fe80::ee0d:9aff:fed4:2c8c%mce2
^C
--- fe80::ee0d:9aff:fed4:2c8c%mce2 ping6 statistics ---
2 packets transmitted, 0 packets received, 100.0% packet loss
With the patch mentioned in the end of this e-mail:
are you sure that this is the problem? Or does
https://reviews.freebsd.org/D23760 solve the actual problem?
/bz
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