[incubator-nuttx] 01/03: net/icmpv6: Fix icmpv6 checksum calculation in icmpv6_reply

[xi...@apache.org]

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xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git

commit 233974b32706c7d25ad289bcbb449d407a47837e
Author: Zhe Weng <we...@xiaomi.com>
AuthorDate: Thu Nov 24 16:50:11 2022 +0800

    net/icmpv6: Fix icmpv6 checksum calculation in icmpv6_reply
    
    The second param of icmpv6_chksum is `iplen`, which indicates `The size of the IPv6 header`.
    
    Signed-off-by: Zhe Weng <we...@xiaomi.com>
---
 net/icmpv6/icmpv6_reply.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/icmpv6/icmpv6_reply.c b/net/icmpv6/icmpv6_reply.c
index c309a8100a..3bd4192d52 100644
--- a/net/icmpv6/icmpv6_reply.c
+++ b/net/icmpv6/icmpv6_reply.c
@@ -139,7 +139,7 @@ void icmpv6_reply(FAR struct net_driver_s *dev, int type, int code, int data)
   /* Calculate the ICMPv6 checksum over the ICMPv6 header and payload. */
 
   icmpv6->chksum = 0;
-  icmpv6->chksum = ~icmpv6_chksum(dev, datalen + sizeof(*icmpv6));
+  icmpv6->chksum = ~icmpv6_chksum(dev, IPv6_HDRLEN);
   if (icmpv6->chksum == 0)
     {
       icmpv6->chksum = 0xffff;