mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-07 22:08:33 -04:00
Code Issues Packages Projects Releases Wiki Activity

selftests: fcnal: Test SO_DONTROUTE on raw and ping sockets.

Browse Source 
Use ping -r to test the kernel behaviour with raw and ping sockets
having the SO_DONTROUTE option.

Since ipv4_ping_novrf() is called with different values of
net.ipv4.ping_group_range, then it tests both raw and ping sockets
(ping uses ping sockets if its user ID belongs to ping_group_range
and raw sockets otherwise).

With both socket types, sending packets to a neighbour (on link) host,
should work. When the host is behind a router, sending should fail.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Guillaume Nault
2023-05-11 16:39:46 +02:00
committed by David S. Miller
parent a431327c4f
commit ceec9f2724
1 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
tools/testing/selftests/net/fcnal-test.sh
View File

@@ -584,6 +584,20 @@ ipv4_ping_novrf()
log_test_addr ${a} $? 0 "ping out, address bind"
done
#
# out, but don't use gateway if peer is not on link
#
a=${NSB_IP}
log_start
run_cmd ping -c 1 -w 1 -r ${a}
log_test_addr ${a} $? 0 "ping out (don't route), peer on link"
a=${NSB_LO_IP}
log_start
show_hint "Fails since peer is not on link"
run_cmd ping -c 1 -w 1 -r ${a}
log_test_addr ${a} $? 1 "ping out (don't route), peer not on link"
#
# in
#