system-linux: fix GRE ikey/okey endianness

The kernel expects IFLA_GRE_IKEY and IFLA_GRE_OKEY to be in network byte
order, so convert the values from host byte order.

Fixes ikey/okey on little endian systems.

Signed-off-by: Stijn Tintel <[email protected]>

diff --git a/system-linux.c b/system-linux.c
index f7704cfde7ee7c22ca36124d3a7b52056465e0d9..483a98dbbf9b374755b7656a2a04764a9a7c4f3e 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -2446,10 +2446,10 @@ static int system_add_gre_tunnel(const char *name, const char *kind,
                nla_put_u16(nlm, IFLA_GRE_IFLAGS, iflags);
 
        if (okey)
-               nla_put_u32(nlm, IFLA_GRE_OKEY, okey);
+               nla_put_u32(nlm, IFLA_GRE_OKEY, htonl(okey));
 
        if (ikey)
-               nla_put_u32(nlm, IFLA_GRE_IKEY, ikey);
+               nla_put_u32(nlm, IFLA_GRE_IKEY, htonl(ikey));
 
        nla_nest_end(nlm, infodata);
        nla_nest_end(nlm, linkinfo);