On Fri, 17 May 2019 10:59:13 -0700 David Ahern <dsah...@kernel.org> wrote:
> index 2b3dcc5dbd53..d980b86ffd42 100644 > --- a/ip/iproute.c > +++ b/ip/iproute.c > @@ -2035,7 +2035,11 @@ static int iproute_get(int argc, char **argv) > if (addr.bytelen) > addattr_l(&req.n, sizeof(req), > RTA_DST, &addr.data, addr.bytelen); > - req.r.rtm_dst_len = addr.bitlen; > + /* kernel ignores prefix length on 'route get' > + * requests; to allow ip to work with strict mode > + * but not break existing users, just set to 32 > + */ > + req.r.rtm_dst_len = 32; > address_found = true; > } > argc--; argv++; Why not warn user that any prefix length (ie not 32) is ignored, then do what you propose.
