On 1/25/21 9:08 PM, Seth David Schoen wrote: > Add selftests for kernel behavior with regard to various classes of > unallocated/reserved IPv4 addresses, checking whether or not these > addresses can be assigned as unicast addresses on links and used in > routing. > > Expect the current kernel behavior at the time of this patch. That is: > > * 0/8 and 240/4 may be used as unicast, with the exceptions of 0.0.0.0 > and 255.255.255.255; > * the lowest address in a subnet may only be used as a broadcast address; > * 127/8 may not be used as unicast (the route_localnet option, which is > disabled by default, still leaves it treated slightly specially); > * 224/4 may not be used as unicast. > > Signed-off-by: Seth David Schoen <sch...@loyalty.org> > Suggested-by: John Gilmore <g...@toad.com> > Acked-by: Dave Taht <dave.t...@gmail.com> > --- > tools/testing/selftests/net/Makefile | 1 + > .../selftests/net/unicast_extensions.sh | 228 ++++++++++++++++++ > 2 files changed, 229 insertions(+) > create mode 100755 tools/testing/selftests/net/unicast_extensions.sh >
Reviewed-by: David Ahern <dsah...@kernel.org>
